From 939c0c2e799734d46e3c3b784545f7c0c489c191 Mon Sep 17 00:00:00 2001 From: Wojtek Kosior Date: Sat, 7 Aug 2021 16:58:11 +0200 Subject: migrate to Autotools --- .gitignore | 2 + Makefile | 21 - Makefile.am | 2 + Makefile.in | 820 ++++++++ compile | 348 +++ config.h.in | 25 + configure | 4904 +++++++++++++++++++++++++++++++++++++++++++ configure.ac | 9 + copyright | 76 +- depcomp | 791 +++++++ hashtable.c | 565 ----- hashtable.h | 143 -- install-sh | 518 +++++ licenses/gpl-2.txt | 340 +++ main.c | 183 -- missing | 215 ++ scriptbase.h | 77 - scriptbase_build.c | 540 ----- scriptbase_json_query.c | 213 -- scriptbase_query.c | 278 --- serve.c | 215 -- src/Makefile.am | 10 + src/Makefile.in | 604 ++++++ src/hashtable.c | 565 +++++ src/hashtable.h | 143 ++ src/main.c | 183 ++ src/scriptbase.h | 77 + src/scriptbase_build.c | 540 +++++ src/scriptbase_json_query.c | 213 ++ src/scriptbase_query.c | 278 +++ src/serve.c | 215 ++ src/string_buf.c | 308 +++ src/string_buf.h | 59 + string_buf.c | 308 --- string_buf.h | 59 - 35 files changed, 11241 insertions(+), 2606 deletions(-) create mode 100644 .gitignore delete mode 100644 Makefile create mode 100644 Makefile.am create mode 100644 Makefile.in create mode 100755 compile create mode 100644 config.h.in create mode 100755 configure create mode 100644 configure.ac create mode 100755 depcomp delete mode 100644 hashtable.c delete mode 100644 hashtable.h create mode 100755 install-sh create mode 100644 licenses/gpl-2.txt delete mode 100644 main.c create mode 100755 missing delete mode 100644 scriptbase.h delete mode 100644 scriptbase_build.c delete mode 100644 scriptbase_json_query.c delete mode 100644 scriptbase_query.c delete mode 100644 serve.c create mode 100644 src/Makefile.am create mode 100644 src/Makefile.in create mode 100644 src/hashtable.c create mode 100644 src/hashtable.h create mode 100644 src/main.c create mode 100644 src/scriptbase.h create mode 100644 src/scriptbase_build.c create mode 100644 src/scriptbase_json_query.c create mode 100644 src/scriptbase_query.c create mode 100644 src/serve.c create mode 100644 src/string_buf.c create mode 100644 src/string_buf.h delete mode 100644 string_buf.c delete mode 100644 string_buf.h diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..68bc2d5 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +aclocal.m4 +autom4te.cache \ No newline at end of file diff --git a/Makefile b/Makefile deleted file mode 100644 index bcdd123..0000000 --- a/Makefile +++ /dev/null @@ -1,21 +0,0 @@ -# part of Hydrilla -# -# Copyright (C) 2021 Wojtek Kosior -# Redistribution terms are gathered in the `copyright' file. - -CC=gcc -CFLAGS=-Wall -Werror -pedantic -std=c99 -D_USE_INLINE -O0 -g -#CFLAGS=-Wall -Werror -std=c89 -O0 -g - -EXECNAME=hydrilla - -$(EXECNAME): string_buf.o hashtable.o serve.o scriptbase_build.o \ - scriptbase_query.o scriptbase_json_query.o main.o - gcc $(filter %.o,$^) -lmicrohttpd -lcjson -o $@ - -clean: - rm -f $(EXECNAME) *.o - -.PHONY: clean - -*.o $(EXECNAME): Makefile diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..05d8c5b --- /dev/null +++ b/Makefile.am @@ -0,0 +1,2 @@ +SUBDIRS = src +dist_doc_DATA = README.txt diff --git a/Makefile.in b/Makefile.in new file mode 100644 index 0000000..030b810 --- /dev/null +++ b/Makefile.in @@ -0,0 +1,820 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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# UTC + +# Copyright (C) 1999-2018 Free Software Foundation, Inc. +# Written by Tom Tromey . +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# This file is maintained in Automake, please report +# bugs to or send patches to +# . + +nl=' +' + +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent tools from complaining about whitespace usage. +IFS=" "" $nl" + +file_conv= + +# func_file_conv build_file lazy +# Convert a $build file to $host form and store it in $file +# Currently only supports Windows hosts. If the determined conversion +# type is listed in (the comma separated) LAZY, no conversion will +# take place. +func_file_conv () +{ + file=$1 + case $file in + / | /[!/]*) # absolute file, and not a UNC file + if test -z "$file_conv"; then + # lazily determine how to convert abs files + case `uname -s` in + MINGW*) + file_conv=mingw + ;; + CYGWIN*) + file_conv=cygwin + ;; + *) + file_conv=wine + ;; + esac + fi + case $file_conv/,$2, in + *,$file_conv,*) + ;; + mingw/*) + file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'` + ;; + cygwin/*) + file=`cygpath -m "$file" || echo "$file"` + ;; + wine/*) + file=`winepath -w "$file" || echo "$file"` + ;; + esac + ;; + esac +} + +# func_cl_dashL linkdir +# Make cl look for libraries in LINKDIR +func_cl_dashL () +{ + func_file_conv "$1" + if test -z "$lib_path"; then + lib_path=$file + else + lib_path="$lib_path;$file" + fi + linker_opts="$linker_opts -LIBPATH:$file" +} + +# func_cl_dashl library +# Do a library search-path lookup for cl +func_cl_dashl () +{ + lib=$1 + found=no + save_IFS=$IFS + IFS=';' + for dir in $lib_path $LIB + do + IFS=$save_IFS + if $shared && test -f "$dir/$lib.dll.lib"; then + found=yes + lib=$dir/$lib.dll.lib + break + fi + if test -f "$dir/$lib.lib"; then + found=yes + lib=$dir/$lib.lib + break + fi + if test -f "$dir/lib$lib.a"; then + found=yes + lib=$dir/lib$lib.a + break + fi + done + IFS=$save_IFS + + if test "$found" != yes; then + lib=$lib.lib + fi +} + +# func_cl_wrapper cl arg... +# Adjust compile command to suit cl +func_cl_wrapper () +{ + # Assume a capable shell + lib_path= + shared=: + linker_opts= + for arg + do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + eat=1 + case $2 in + *.o | *.[oO][bB][jJ]) + func_file_conv "$2" + set x "$@" -Fo"$file" + shift + ;; + *) + func_file_conv "$2" + set x "$@" -Fe"$file" + shift + ;; + esac + ;; + -I) + eat=1 + func_file_conv "$2" mingw + set x "$@" -I"$file" + shift + ;; + -I*) + func_file_conv "${1#-I}" mingw + set x "$@" -I"$file" + shift + ;; + -l) + eat=1 + func_cl_dashl "$2" + set x "$@" "$lib" + shift + ;; + -l*) + func_cl_dashl "${1#-l}" + set x "$@" "$lib" + shift + ;; + -L) + eat=1 + func_cl_dashL "$2" + ;; + -L*) + func_cl_dashL "${1#-L}" + ;; + -static) + shared=false + ;; + -Wl,*) + arg=${1#-Wl,} + save_ifs="$IFS"; IFS=',' + for flag in $arg; do + IFS="$save_ifs" + linker_opts="$linker_opts $flag" + done + IFS="$save_ifs" + ;; + -Xlinker) + eat=1 + linker_opts="$linker_opts $2" + ;; + -*) + set x "$@" "$1" + shift + ;; + *.cc | *.CC | *.cxx | *.CXX | *.[cC]++) + func_file_conv "$1" + set x "$@" -Tp"$file" + shift + ;; + *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO]) + func_file_conv "$1" mingw + set x "$@" "$file" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift + done + if test -n "$linker_opts"; then + linker_opts="-link$linker_opts" + fi + exec "$@" $linker_opts + exit 1 +} + +eat= + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: compile [--help] [--version] PROGRAM [ARGS] + +Wrapper for compilers which do not understand '-c -o'. +Remove '-o dest.o' from ARGS, run PROGRAM with the remaining +arguments, and rename the output as expected. + +If you are trying to build a whole package this is not the +right script to run: please start by reading the file 'INSTALL'. + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "compile $scriptversion" + exit $? + ;; + cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \ + icl | *[/\\]icl | icl.exe | *[/\\]icl.exe ) + func_cl_wrapper "$@" # Doesn't return... + ;; +esac + +ofile= +cfile= + +for arg +do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + # So we strip '-o arg' only if arg is an object. + eat=1 + case $2 in + *.o | *.obj) + ofile=$2 + ;; + *) + set x "$@" -o "$2" + shift + ;; + esac + ;; + *.c) + cfile=$1 + set x "$@" "$1" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift +done + +if test -z "$ofile" || test -z "$cfile"; then + # If no '-o' option was seen then we might have been invoked from a + # pattern rule where we don't need one. That is ok -- this is a + # normal compilation that the losing compiler can handle. If no + # '.c' file was seen then we are probably linking. That is also + # ok. + exec "$@" +fi + +# Name of file we expect compiler to create. +cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'` + +# Create the lock directory. +# Note: use '[/\\:.-]' here to ensure that we don't use the same name +# that we are using for the .o file. Also, base the name on the expected +# object file name, since that is what matters with a parallel build. +lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d +while true; do + if mkdir "$lockdir" >/dev/null 2>&1; then + break + fi + sleep 1 +done +# FIXME: race condition here if user kills between mkdir and trap. +trap "rmdir '$lockdir'; exit 1" 1 2 15 + +# Run the compile. +"$@" +ret=$? + +if test -f "$cofile"; then + test "$cofile" = "$ofile" || mv "$cofile" "$ofile" +elif test -f "${cofile}bj"; then + test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile" +fi + +rmdir "$lockdir" +exit $ret + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/config.h.in b/config.h.in new file mode 100644 index 0000000..dd3b02c --- /dev/null +++ b/config.h.in @@ -0,0 +1,25 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Version number of package */ +#undef VERSION diff --git a/configure b/configure new file mode 100755 index 0000000..d5e4571 --- /dev/null +++ b/configure @@ -0,0 +1,4904 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.69 for hydrilla 0.1. +# +# Report bugs to . +# +# +# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. +# +# +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Use a proper internal environment variable to ensure we don't fall + # into an infinite loop, continuously re-executing ourselves. + if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then + _as_can_reexec=no; export _as_can_reexec; + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +as_fn_exit 255 + fi + # We don't want this to propagate to other subprocesses. + { _as_can_reexec=; unset _as_can_reexec;} +if test "x$CONFIG_SHELL" = x; then + as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi +" + as_required="as_fn_return () { (exit \$1); } +as_fn_success () { as_fn_return 0; } +as_fn_failure () { as_fn_return 1; } +as_fn_ret_success () { return 0; } +as_fn_ret_failure () { return 1; } + +exitcode=0 +as_fn_success || { exitcode=1; echo as_fn_success failed.; } +as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } +as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } +as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } +if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then : + +else + exitcode=1; echo positional parameters were not saved. +fi +test x\$exitcode = x0 || exit 1 +test -x / || exit 1" + as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO + as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO + eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && + test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1" + if (eval "$as_required") 2>/dev/null; then : + as_have_required=yes +else + as_have_required=no +fi + if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then : + +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +as_found=false +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + as_found=: + case $as_dir in #( + /*) + for as_base in sh bash ksh sh5; do + # Try only shells that exist, to save several forks. + as_shell=$as_dir/$as_base + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then : + CONFIG_SHELL=$as_shell as_have_required=yes + if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then : + break 2 +fi +fi + done;; + esac + as_found=false +done +$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then : + CONFIG_SHELL=$SHELL as_have_required=yes +fi; } +IFS=$as_save_IFS + + + if test "x$CONFIG_SHELL" != x; then : + export CONFIG_SHELL + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 +fi + + if test x$as_have_required = xno; then : + $as_echo "$0: This script requires a shell more modern than all" + $as_echo "$0: the shells that I found on your system." + if test x${ZSH_VERSION+set} = xset ; then + $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should" + $as_echo "$0: be upgraded to zsh 4.3.4 or later." + else + $as_echo "$0: Please tell bug-autoconf@gnu.org and koszko@koszko.org +$0: about your system, including any error possibly output +$0: before this message. Then install a modern shell, or +$0: manually run the script under such a shell if you do +$0: have one." + fi + exit 1 +fi +fi +fi +SHELL=${CONFIG_SHELL-/bin/sh} +export SHELL +# Unset more variables known to interfere with behavior of common tools. +CLICOLOR_FORCE= GREP_OPTIONS= +unset CLICOLOR_FORCE GREP_OPTIONS + +## --------------------- ## +## M4sh Shell Functions. ## +## --------------------- ## +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + + + as_lineno_1=$LINENO as_lineno_1a=$LINENO + as_lineno_2=$LINENO as_lineno_2a=$LINENO + eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && + test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { + # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) + sed -n ' + p + /[$]LINENO/= + ' <$as_myself | + sed ' + s/[$]LINENO.*/&-/ + t lineno + b + :lineno + N + :loop + s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ + t loop + s/-\n.*// + ' >$as_me.lineno && + chmod +x "$as_me.lineno" || + { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } + + # If we had to re-execute with $CONFIG_SHELL, we're ensured to have + # already done that, so ensure we don't try to do so again and fall + # in an infinite loop. This has already happened in practice. + _as_can_reexec=no; export _as_can_reexec + # Don't try to exec as it changes $[0], causing all sort of problems + # (the dirname of $[0] is not the place where we might find the + # original and so on. Autoconf is especially sensitive to this). + . "./$as_me.lineno" + # Exit status is that of the last command. + exit +} + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + fi +else + as_ln_s='cp -pR' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + +if mkdir -p . 2>/dev/null; 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See below for descriptions of some of the useful variables. + +Defaults for the options are specified in brackets. + +Configuration: + -h, --help display this help and exit + --help=short display options specific to this package + --help=recursive display the short help of all the included packages + -V, --version display version information and exit + -q, --quiet, --silent do not print \`checking ...' messages + --cache-file=FILE cache test results in FILE [disabled] + -C, --config-cache alias for \`--cache-file=config.cache' + -n, --no-create do not create output files + --srcdir=DIR find the sources in DIR [configure dir or \`..'] + +Installation directories: + --prefix=PREFIX install architecture-independent files in PREFIX + [$ac_default_prefix] + --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX + [PREFIX] + +By default, \`make install' will install all the files in +\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify +an installation prefix other than \`$ac_default_prefix' using \`--prefix', +for instance \`--prefix=\$HOME'. + +For better control, use the options below. + +Fine tuning of the installation directories: + --bindir=DIR user executables [EPREFIX/bin] + --sbindir=DIR system admin executables [EPREFIX/sbin] + --libexecdir=DIR program executables [EPREFIX/libexec] + --sysconfdir=DIR read-only single-machine data [PREFIX/etc] + --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com] + --localstatedir=DIR modifiable single-machine data [PREFIX/var] + --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run] + --libdir=DIR object code libraries [EPREFIX/lib] + --includedir=DIR C header files [PREFIX/include] + --oldincludedir=DIR C header files for non-gcc [/usr/include] + --datarootdir=DIR read-only arch.-independent data root [PREFIX/share] + --datadir=DIR read-only architecture-independent data [DATAROOTDIR] + --infodir=DIR info documentation [DATAROOTDIR/info] + --localedir=DIR locale-dependent data [DATAROOTDIR/locale] + --mandir=DIR man documentation [DATAROOTDIR/man] + --docdir=DIR documentation root [DATAROOTDIR/doc/hydrilla] + --htmldir=DIR html documentation [DOCDIR] + --dvidir=DIR dvi documentation [DOCDIR] + --pdfdir=DIR pdf documentation [DOCDIR] + --psdir=DIR ps documentation [DOCDIR] +_ACEOF + + cat <<\_ACEOF + +Program names: + --program-prefix=PREFIX prepend PREFIX to installed program names + --program-suffix=SUFFIX append SUFFIX to installed program names + --program-transform-name=PROGRAM run sed PROGRAM on installed program names +_ACEOF +fi + +if test -n "$ac_init_help"; then + case $ac_init_help in + short | recursive ) echo "Configuration of hydrilla 0.1:";; + esac + cat <<\_ACEOF + +Optional Features: + --disable-option-checking ignore unrecognized --enable/--with options + --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) + --enable-FEATURE[=ARG] include FEATURE [ARG=yes] + --enable-silent-rules less verbose build output (undo: "make V=1") + --disable-silent-rules verbose build output (undo: "make V=0") + --enable-dependency-tracking + do not reject slow dependency extractors + --disable-dependency-tracking + speeds up one-time build + +Some influential environment variables: + CC C compiler command + CFLAGS C compiler flags + LDFLAGS linker flags, e.g. -L if you have libraries in a + nonstandard directory + LIBS libraries to pass to the linker, e.g. -l + CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I if + you have headers in a nonstandard directory + +Use these variables to override the choices made by `configure' or to help +it to find libraries and programs with nonstandard names/locations. + +Report bugs to . +_ACEOF +ac_status=$? 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Don't cache a + # value for INSTALL within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + INSTALL=$ac_install_sh + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5 +$as_echo "$INSTALL" >&6; } + +# Use test -z because SunOS4 sh mishandles braces in ${var-val}. +# It thinks the first close brace ends the variable substitution. +test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' + +test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' + +test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5 +$as_echo_n "checking whether build environment is sane... " >&6; } +# Reject unsafe characters in $srcdir or the absolute working directory +# name. Accept space and tab only in the latter. +am_lf=' +' +case `pwd` in + *[\\\"\#\$\&\'\`$am_lf]*) + as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;; +esac +case $srcdir in + *[\\\"\#\$\&\'\`$am_lf\ \ ]*) + as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;; +esac + +# Do 'set' in a subshell so we don't clobber the current shell's +# arguments. Must try -L first in case configure is actually a +# symlink; some systems play weird games with the mod time of symlinks +# (eg FreeBSD returns the mod time of the symlink's containing +# directory). +if ( + am_has_slept=no + for am_try in 1 2; do + echo "timestamp, slept: $am_has_slept" > conftest.file + set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` + if test "$*" = "X"; then + # -L didn't work. + set X `ls -t "$srcdir/configure" conftest.file` + fi + if test "$*" != "X $srcdir/configure conftest.file" \ + && test "$*" != "X conftest.file $srcdir/configure"; then + + # If neither matched, then we have a broken ls. This can happen + # if, for instance, CONFIG_SHELL is bash and it inherits a + # broken ls alias from the environment. This has actually + # happened. Such a system could not be considered "sane". + as_fn_error $? "ls -t appears to fail. Make sure there is not a broken + alias in your environment" "$LINENO" 5 + fi + if test "$2" = conftest.file || test $am_try -eq 2; then + break + fi + # Just in case. + sleep 1 + am_has_slept=yes + done + test "$2" = conftest.file + ) +then + # Ok. + : +else + as_fn_error $? "newly created file is older than distributed files! +Check your system clock" "$LINENO" 5 +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +# If we didn't sleep, we still need to ensure time stamps of config.status and +# generated files are strictly newer. +am_sleep_pid= +if grep 'slept: no' conftest.file >/dev/null 2>&1; then + ( sleep 1 ) & + am_sleep_pid=$! +fi + +rm -f conftest.file + +test "$program_prefix" != NONE && + program_transform_name="s&^&$program_prefix&;$program_transform_name" +# Use a double $ so make ignores it. +test "$program_suffix" != NONE && + program_transform_name="s&\$&$program_suffix&;$program_transform_name" +# Double any \ or $. +# By default was `s,x,x', remove it if useless. +ac_script='s/[\\$]/&&/g;s/;s,x,x,$//' +program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"` + +# Expand $ac_aux_dir to an absolute path. +am_aux_dir=`cd "$ac_aux_dir" && pwd` + +if test x"${MISSING+set}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;; + *) + MISSING="\${SHELL} $am_aux_dir/missing" ;; + esac +fi +# Use eval to expand $SHELL +if eval "$MISSING --is-lightweight"; then + am_missing_run="$MISSING " +else + am_missing_run= + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5 +$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;} +fi + +if test x"${install_sh+set}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;; + *) + install_sh="\${SHELL} $am_aux_dir/install-sh" + esac +fi + +# Installed binaries are usually stripped using 'strip' when the user +# run "make install-strip". However 'strip' might not be the right +# tool to use in cross-compilation environments, therefore Automake +# will honor the 'STRIP' environment variable to overrule this program. +if test "$cross_compiling" != no; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +fi +INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5 +$as_echo_n "checking for a thread-safe mkdir -p... " >&6; } +if test -z "$MKDIR_P"; then + if ${ac_cv_path_mkdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in mkdir gmkdir; do + for ac_exec_ext in '' $ac_executable_extensions; do + as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue + case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #( + 'mkdir (GNU coreutils) '* | \ + 'mkdir (coreutils) '* | \ + 'mkdir (fileutils) '4.1*) + ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext + break 3;; + esac + done + done + done +IFS=$as_save_IFS + +fi + + test -d ./--version && rmdir ./--version + if test "${ac_cv_path_mkdir+set}" = set; then + MKDIR_P="$ac_cv_path_mkdir -p" + else + # As a last resort, use the slow shell script. Don't cache a + # value for MKDIR_P within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + MKDIR_P="$ac_install_sh -d" + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5 +$as_echo "$MKDIR_P" >&6; } + +for ac_prog in gawk mawk nawk awk +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AWK+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AWK"; then + ac_cv_prog_AWK="$AWK" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AWK="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AWK=$ac_cv_prog_AWK +if test -n "$AWK"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5 +$as_echo "$AWK" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AWK" && break +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5 +$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; } +set x ${MAKE-make} +ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'` +if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat >conftest.make <<\_ACEOF +SHELL = /bin/sh +all: + @echo '@@@%%%=$(MAKE)=@@@%%%' +_ACEOF +# GNU make sometimes prints "make[1]: Entering ...", which would confuse us. +case `${MAKE-make} -f conftest.make 2>/dev/null` in + *@@@%%%=?*=@@@%%%*) + eval ac_cv_prog_make_${ac_make}_set=yes;; + *) + eval ac_cv_prog_make_${ac_make}_set=no;; +esac +rm -f conftest.make +fi +if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + SET_MAKE= +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + SET_MAKE="MAKE=${MAKE-make}" +fi + +rm -rf .tst 2>/dev/null +mkdir .tst 2>/dev/null +if test -d .tst; then + am__leading_dot=. +else + am__leading_dot=_ +fi +rmdir .tst 2>/dev/null + +# Check whether --enable-silent-rules was given. +if test "${enable_silent_rules+set}" = set; then : + enableval=$enable_silent_rules; +fi + +case $enable_silent_rules in # ((( + yes) AM_DEFAULT_VERBOSITY=0;; + no) AM_DEFAULT_VERBOSITY=1;; + *) AM_DEFAULT_VERBOSITY=1;; +esac +am_make=${MAKE-make} +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5 +$as_echo_n "checking whether $am_make supports nested variables... " >&6; } +if ${am_cv_make_support_nested_variables+:} false; then : + $as_echo_n "(cached) " >&6 +else + if $as_echo 'TRUE=$(BAR$(V)) +BAR0=false +BAR1=true +V=1 +am__doit: + @$(TRUE) +.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then + am_cv_make_support_nested_variables=yes +else + am_cv_make_support_nested_variables=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5 +$as_echo "$am_cv_make_support_nested_variables" >&6; } +if test $am_cv_make_support_nested_variables = yes; then + AM_V='$(V)' + AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' +else + AM_V=$AM_DEFAULT_VERBOSITY + AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY +fi +AM_BACKSLASH='\' + +if test "`cd $srcdir && pwd`" != "`pwd`"; then + # Use -I$(srcdir) only when $(srcdir) != ., so that make's output + # is not polluted with repeated "-I." + am__isrc=' -I$(srcdir)' + # test to see if srcdir already configured + if test -f $srcdir/config.status; then + as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5 + fi +fi + +# test whether we have cygpath +if test -z "$CYGPATH_W"; then + if (cygpath --version) >/dev/null 2>/dev/null; then + CYGPATH_W='cygpath -w' + else + CYGPATH_W=echo + fi +fi + + +# Define the identity of the package. + PACKAGE='hydrilla' + VERSION='0.1' + + +cat >>confdefs.h <<_ACEOF +#define PACKAGE "$PACKAGE" +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define VERSION "$VERSION" +_ACEOF + +# Some tools Automake needs. + +ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"} + + +AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"} + + +AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"} + + +AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"} + + +MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"} + +# For better backward compatibility. To be removed once Automake 1.9.x +# dies out for good. For more background, see: +# +# +mkdir_p='$(MKDIR_P)' + +# We need awk for the "check" target (and possibly the TAP driver). The +# system "awk" is bad on some platforms. +# Always define AMTAR for backward compatibility. Yes, it's still used +# in the wild :-( We should find a proper way to deprecate it ... +AMTAR='$${TAR-tar}' + + +# We'll loop over all known methods to create a tar archive until one works. +_am_tools='gnutar pax cpio none' + +am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -' + + + + + + +# POSIX will say in a future version that running "rm -f" with no argument +# is OK; and we want to be able to make that assumption in our Makefile +# recipes. So use an aggressive probe to check that the usage we want is +# actually supported "in the wild" to an acceptable degree. +# See automake bug#10828. +# To make any issue more visible, cause the running configure to be aborted +# by default if the 'rm' program in use doesn't match our expectations; the +# user can still override this though. +if rm -f && rm -fr && rm -rf; then : OK; else + cat >&2 <<'END' +Oops! + +Your 'rm' program seems unable to run without file operands specified +on the command line, even when the '-f' option is present. This is contrary +to the behaviour of most rm programs out there, and not conforming with +the upcoming POSIX standard: + +Please tell bug-automake@gnu.org about your system, including the value +of your $PATH and any error possibly output before this message. This +can help us improve future automake versions. + +END + if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then + echo 'Configuration will proceed anyway, since you have set the' >&2 + echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2 + echo >&2 + else + cat >&2 <<'END' +Aborting the configuration process, to ensure you take notice of the issue. + +You can download and install GNU coreutils to get an 'rm' implementation +that behaves properly: . + +If you want to complete the configuration process using your problematic +'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM +to "yes", and re-run configure. + +END + as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5 + fi +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5 +$as_echo_n "checking whether the C compiler works... " >&6; } +ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` + +# The possible output files: +ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*" + +ac_rmfiles= +for ac_file in $ac_files +do + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + * ) ac_rmfiles="$ac_rmfiles $ac_file";; + esac +done +rm -f $ac_rmfiles + +if { { ac_try="$ac_link_default" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link_default") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + # Autoconf-2.13 could set the ac_cv_exeext variable to `no'. +# So ignore a value of `no', otherwise this would lead to `EXEEXT = no' +# in a Makefile. We should not override ac_cv_exeext if it was cached, +# so that the user can short-circuit this test for compilers unknown to +# Autoconf. +for ac_file in $ac_files '' +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no; + then :; else + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + fi + # We set ac_cv_exeext here because the later test for it is not + # safe: cross compilers may not add the suffix if given an `-o' + # argument, so we may need to know it at that point already. + # Even if this section looks crufty: it has the advantage of + # actually working. + break;; + * ) + break;; + esac +done +test "$ac_cv_exeext" = no && ac_cv_exeext= + +else + ac_file='' +fi +if test -z "$ac_file"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +$as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "C compiler cannot create executables +See \`config.log' for more details" "$LINENO" 5; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5 +$as_echo_n "checking for C compiler default output file name... " >&6; } +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5 +$as_echo "$ac_file" >&6; } +ac_exeext=$ac_cv_exeext + +rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out +ac_clean_files=$ac_clean_files_save +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5 +$as_echo_n "checking for suffix of executables... " >&6; } +if { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + # If both `conftest.exe' and `conftest' are `present' (well, observable) +# catch `conftest.exe'. For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest conftest$ac_cv_exeext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5 +$as_echo "$ac_cv_exeext" >&6; } + +rm -f conftest.$ac_ext +EXEEXT=$ac_cv_exeext +ac_exeext=$EXEEXT +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +FILE *f = fopen ("conftest.out", "w"); + return ferror (f) || fclose (f) != 0; + + ; + return 0; +} +_ACEOF +ac_clean_files="$ac_clean_files conftest.out" +# Check that the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5 +$as_echo_n "checking whether we are cross compiling... " >&6; } +if test "$cross_compiling" != yes; then + { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if { ac_try='./conftest$ac_cv_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details" "$LINENO" 5; } + fi + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5 +$as_echo "$cross_compiling" >&6; } + +rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out +ac_clean_files=$ac_clean_files_save +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5 +$as_echo_n "checking for suffix of object files... " >&6; } +if ${ac_cv_objext+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + for ac_file in conftest.o conftest.obj conftest.*; do + test -f "$ac_file" || continue; + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of object files: cannot compile +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest.$ac_cv_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5 +$as_echo "$ac_cv_objext" >&6; } +OBJEXT=$ac_cv_objext +ac_objext=$OBJEXT +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5 +$as_echo_n "checking whether we are using the GNU C compiler... " >&6; } +if ${ac_cv_c_compiler_gnu+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5 +$as_echo "$ac_cv_c_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GCC=yes +else + GCC= +fi +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5 +$as_echo_n "checking whether $CC accepts -g... 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Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + fi +else + as_ln_s='cp -pR' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p +if mkdir -p . 2>/dev/null; then + as_mkdir_p='mkdir -p "$as_dir"' +else + test -d ./-p && rmdir ./-p + as_mkdir_p=false +fi + + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +as_test_x='test -x' +as_executable_p=as_fn_executable_p + +# Sed expression to map a string onto a valid CPP name. +as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'" + +# Sed expression to map a string onto a valid variable name. +as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'" + + +exec 6>&1 +## ----------------------------------- ## +## Main body of $CONFIG_STATUS script. ## +## ----------------------------------- ## +_ASEOF +test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# Save the log message, to keep $0 and so on meaningful, and to +# report actual input values of CONFIG_FILES etc. instead of their +# values after options handling. +ac_log=" +This file was extended by hydrilla $as_me 0.1, which was +generated by GNU Autoconf 2.69. Invocation command line was + + CONFIG_FILES = $CONFIG_FILES + CONFIG_HEADERS = $CONFIG_HEADERS + CONFIG_LINKS = $CONFIG_LINKS + CONFIG_COMMANDS = $CONFIG_COMMANDS + $ $0 $@ + +on `(hostname || uname -n) 2>/dev/null | sed 1q` +" + +_ACEOF + +case $ac_config_files in *" +"*) set x $ac_config_files; shift; ac_config_files=$*;; +esac + +case $ac_config_headers in *" +"*) set x $ac_config_headers; shift; ac_config_headers=$*;; +esac + + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# Files that config.status was made for. +config_files="$ac_config_files" +config_headers="$ac_config_headers" +config_commands="$ac_config_commands" + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +ac_cs_usage="\ +\`$as_me' instantiates files and other configuration actions +from templates according to the current configuration. Unless the files +and actions are specified as TAGs, all are instantiated by default. + +Usage: $0 [OPTION]... [TAG]... + + -h, --help print this help, then exit + -V, --version print version number and configuration settings, then exit + --config print configuration, then exit + -q, --quiet, --silent + do not print progress messages + -d, --debug don't remove temporary files + --recheck update $as_me by reconfiguring in the same conditions + --file=FILE[:TEMPLATE] + instantiate the configuration file FILE + --header=FILE[:TEMPLATE] + instantiate the configuration header FILE + +Configuration files: +$config_files + +Configuration headers: +$config_headers + +Configuration commands: +$config_commands + +Report bugs to ." + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`" +ac_cs_version="\\ +hydrilla config.status 0.1 +configured by $0, generated by GNU Autoconf 2.69, + with options \\"\$ac_cs_config\\" + +Copyright (C) 2012 Free Software Foundation, Inc. +This config.status script is free software; the Free Software Foundation +gives unlimited permission to copy, distribute and modify it." + +ac_pwd='$ac_pwd' +srcdir='$srcdir' +INSTALL='$INSTALL' +MKDIR_P='$MKDIR_P' +AWK='$AWK' +test -n "\$AWK" || AWK=awk +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# The default lists apply if the user does not specify any file. +ac_need_defaults=: +while test $# != 0 +do + case $1 in + --*=?*) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'` + ac_shift=: + ;; + --*=) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg= + ac_shift=: + ;; + *) + ac_option=$1 + ac_optarg=$2 + ac_shift=shift + ;; + esac + + case $ac_option in + # Handling of the options. + -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) + ac_cs_recheck=: ;; + --version | --versio | --versi | --vers | --ver | --ve | --v | -V ) + $as_echo "$ac_cs_version"; exit ;; + --config | --confi | --conf | --con | --co | --c ) + $as_echo "$ac_cs_config"; exit ;; + --debug | --debu | --deb | --de | --d | -d ) + debug=: ;; + --file | --fil | --fi | --f ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + '') as_fn_error $? "missing file argument" ;; + esac + as_fn_append CONFIG_FILES " '$ac_optarg'" + ac_need_defaults=false;; + --header | --heade | --head | --hea ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + as_fn_append CONFIG_HEADERS " '$ac_optarg'" + ac_need_defaults=false;; + --he | --h) + # Conflict between --help and --header + as_fn_error $? "ambiguous option: \`$1' +Try \`$0 --help' for more information.";; + --help | --hel | -h ) + $as_echo "$ac_cs_usage"; exit ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil | --si | --s) + ac_cs_silent=: ;; + + # This is an error. + -*) as_fn_error $? "unrecognized option: \`$1' +Try \`$0 --help' for more information." ;; + + *) as_fn_append ac_config_targets " $1" + ac_need_defaults=false ;; + + esac + shift +done + +ac_configure_extra_args= + +if $ac_cs_silent; then + exec 6>/dev/null + ac_configure_extra_args="$ac_configure_extra_args --silent" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +if \$ac_cs_recheck; then + set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion + shift + \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6 + CONFIG_SHELL='$SHELL' + export CONFIG_SHELL + exec "\$@" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +exec 5>>config.log +{ + echo + sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX +## Running $as_me. ## +_ASBOX + $as_echo "$ac_log" +} >&5 + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# +# INIT-COMMANDS +# +AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}" + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + +# Handling of arguments. +for ac_config_target in $ac_config_targets +do + case $ac_config_target in + "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;; + "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;; + "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; + "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;; + + *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;; + esac +done + + +# If the user did not use the arguments to specify the items to instantiate, +# then the envvar interface is used. Set only those that are not. +# We use the long form for the default assignment because of an extremely +# bizarre bug on SunOS 4.1.3. +if $ac_need_defaults; then + test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files + test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers + test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands +fi + +# Have a temporary directory for convenience. Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to `$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with `./config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +_ACEOF + + +{ + echo "cat >conf$$subs.awk <<_ACEOF" && + echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && + echo "_ACEOF" +} >conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 +ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'` +ac_delim='%!_!# ' +for ac_last_try in false false false false false :; do + . ./conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + + ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X` + if test $ac_delim_n = $ac_delim_num; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done +rm -f conf$$subs.sh + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK && +_ACEOF +sed -n ' +h +s/^/S["/; s/!.*/"]=/ +p +g +s/^[^!]*!// +:repl +t repl +s/'"$ac_delim"'$// +t delim +:nl +h +s/\(.\{148\}\)..*/\1/ +t more1 +s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/ +p +n +b repl +:more1 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t nl +:delim +h +s/\(.\{148\}\)..*/\1/ +t more2 +s/["\\]/\\&/g; s/^/"/; s/$/"/ +p +b +:more2 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t delim +' >$CONFIG_STATUS || ac_write_fail=1 +rm -f conf$$subs.awk +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +_ACAWK +cat >>"\$ac_tmp/subs1.awk" <<_ACAWK && + for (key in S) S_is_set[key] = 1 + FS = "" + +} +{ + line = $ 0 + nfields = split(line, field, "@") + substed = 0 + len = length(field[1]) + for (i = 2; i < nfields; i++) { + key = field[i] + keylen = length(key) + if (S_is_set[key]) { + value = S[key] + line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3) + len += length(value) + length(field[++i]) + substed = 1 + } else + len += 1 + keylen + } + + print line +} + +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then + sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g" +else + cat +fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \ + || as_fn_error $? "could not setup config files machinery" "$LINENO" 5 +_ACEOF + +# VPATH may cause trouble with some makes, so we remove sole $(srcdir), +# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with `./config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +_ACEOF + +# Transform confdefs.h into an awk script `defines.awk', embedded as +# here-document in config.status, that substitutes the proper values into +# config.h.in to produce config.h. + +# Create a delimiter string that does not exist in confdefs.h, to ease +# handling of long lines. +ac_delim='%!_!# ' +for ac_last_try in false false :; do + ac_tt=`sed -n "/$ac_delim/p" confdefs.h` + if test -z "$ac_tt"; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done + +# For the awk script, D is an array of macro values keyed by name, +# likewise P contains macro parameters if any. Preserve backslash +# newline sequences. + +ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]* +sed -n ' +s/.\{148\}/&'"$ac_delim"'/g +t rset +:rset +s/^[ ]*#[ ]*define[ ][ ]*/ / +t def +d +:def +s/\\$// +t bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3"/p +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2"/p +d +:bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3\\\\\\n"\\/p +t cont +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p +t cont +d +:cont +n +s/.\{148\}/&'"$ac_delim"'/g +t clear +:clear +s/\\$// +t bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/"/p +d +:bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p +b cont +' >$CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 + for (key in D) D_is_set[key] = 1 + FS = "" +} +/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ { + line = \$ 0 + split(line, arg, " ") + if (arg[1] == "#") { + defundef = arg[2] + mac1 = arg[3] + } else { + defundef = substr(arg[1], 2) + mac1 = arg[2] + } + split(mac1, mac2, "(") #) + macro = mac2[1] + prefix = substr(line, 1, index(line, defundef) - 1) + if (D_is_set[macro]) { + # Preserve the white space surrounding the "#". + print prefix "define", macro P[macro] D[macro] + next + } else { + # Replace #undef with comments. This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS" +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? 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"Something went wrong bootstrapping makefile fragments + for automatic dependency tracking. Try re-running configure with the + '--disable-dependency-tracking' option to at least be able to build + the package (albeit without support for automatic dependency tracking). +See \`config.log' for more details" "$LINENO" 5; } + fi + { am_dirpart=; unset am_dirpart;} + { am_filepart=; unset am_filepart;} + { am_mf=; unset am_mf;} + { am_rc=; unset am_rc;} + rm -f conftest-deps.mk +} + ;; + + esac +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..9f96cc8 --- /dev/null +++ b/configure.ac @@ -0,0 +1,9 @@ +AC_INIT([hydrilla], [0.1], [koszko@koszko.org]) +AM_INIT_AUTOMAKE([-Wall -Werror foreign]) +AC_PROG_CC +AC_CONFIG_HEADERS([config.h]) +AC_CONFIG_FILES([ + Makefile + src/Makefile +]) +AC_OUTPUT diff --git a/copyright b/copyright index b17692d..03b28f4 100644 --- a/copyright +++ b/copyright @@ -2,16 +2,69 @@ Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ Upstream-Name: Hydrilla Source: https://git.koszko.org/hydrilla/ -Files: * +Files: depcomp compile missing +Copyright: 1996-2018 Free Software Foundation, Inc. +License: GPL-2+ + +Files: install-sh +Copyright: 1994 X Consortium +License: X11 + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to + deal in the Software without restriction, including without limitation the + rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + sell copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + . + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + . + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- + TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + . + Except as contained in this notice, the name of the X Consortium shall not + be used in advertising or otherwise to promote the sale, use or other deal- + ings in this Software without prior written authorization from the X Consor- + tium. + +Files: configure +Copyright: 1992-1996, 1998-2012 Free Software Foundation, Inc. +License: unlimited + This configure script is free software; the Free Software Foundation + gives unlimited permission to copy, distribute and modify it. + +Files: *.in +Copyright: 1994-2018 Free Software Foundation, Inc. +License: unlimited-no-warranty + This Makefile.in is free software; the Free Software Foundation + gives unlimited permission to copy and/or distribute it, + with or without modifications, as long as this notice is preserved. + . + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY, to the extent permitted by law; without + even the implied warranty of MERCHANTABILITY or FITNESS FOR A + PARTICULAR PURPOSE. + +Files: config.h.in +Copyright: (none) +License: public-domain +Comment: This file has been auto-generated and does not contain + enough createive content to be copyrightable. + +Files: src/* Copyright: 2021 Wojtek Kosior License: AGPL-3+ or Alicense-1.0 -Files: serve.c +Files: src/serve.c Copyright: 2021 Wojtek Kosior 2008-2010, 2012 Christian Grothoff License: AGPL-3+ or Alicense-1.0, and public-domain -Files: Makefile README.txt copyright examples/* tests/* +Files: *.ac *.am README.txt copyright examples/* tests/* .gitignore Copyright: 2021 Wojtek Kosior License: CC0 @@ -19,7 +72,7 @@ Files: licenses/* Copyright: 2001, 2002, 2011-2013 Creative Commons License: CC-BY-4.0 -Files: licenses/agpl-3.0.txt +Files: licenses/agpl-3.0.txt licenses/gpl-2.txt Copyright: 2007 Free Software Foundation, Inc. License: no-changing Everyone is permitted to copy and distribute verbatim copies of @@ -53,6 +106,21 @@ License: AGPL-3+ You should have received a copy of the GNU Affero General Public License along with this program. If not, see . +License: GPL-2+ + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + . + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + . + You should have received a copy of the GNU General Public License + along with this program; if not, see + . + License: CC0 See `licenses/cc0.txt' diff --git a/depcomp b/depcomp new file mode 100755 index 0000000..65cbf70 --- /dev/null +++ b/depcomp @@ -0,0 +1,791 @@ +#! /bin/sh +# depcomp - compile a program generating dependencies as side-effects + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 1999-2018 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Originally written by Alexandre Oliva . + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: depcomp [--help] [--version] PROGRAM [ARGS] + +Run PROGRAMS ARGS to compile a file, generating dependencies +as side-effects. + +Environment variables: + depmode Dependency tracking mode. + source Source file read by 'PROGRAMS ARGS'. + object Object file output by 'PROGRAMS ARGS'. + DEPDIR directory where to store dependencies. + depfile Dependency file to output. + tmpdepfile Temporary file to use when outputting dependencies. + libtool Whether libtool is used (yes/no). + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "depcomp $scriptversion" + exit $? + ;; +esac + +# Get the directory component of the given path, and save it in the +# global variables '$dir'. Note that this directory component will +# be either empty or ending with a '/' character. This is deliberate. +set_dir_from () +{ + case $1 in + */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; + *) dir=;; + esac +} + +# Get the suffix-stripped basename of the given path, and save it the +# global variable '$base'. +set_base_from () +{ + base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` +} + +# If no dependency file was actually created by the compiler invocation, +# we still have to create a dummy depfile, to avoid errors with the +# Makefile "include basename.Plo" scheme. +make_dummy_depfile () +{ + echo "#dummy" > "$depfile" +} + +# Factor out some common post-processing of the generated depfile. +# Requires the auxiliary global variable '$tmpdepfile' to be set. +aix_post_process_depfile () +{ + # If the compiler actually managed to produce a dependency file, + # post-process it. + if test -f "$tmpdepfile"; then + # Each line is of the form 'foo.o: dependency.h'. + # Do two passes, one to just change these to + # $object: dependency.h + # and one to simply output + # dependency.h: + # which is needed to avoid the deleted-header problem. + { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" + sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" + } > "$depfile" + rm -f "$tmpdepfile" + else + make_dummy_depfile + fi +} + +# A tabulation character. +tab=' ' +# A newline character. +nl=' +' +# Character ranges might be problematic outside the C locale. +# These definitions help. +upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ +lower=abcdefghijklmnopqrstuvwxyz +digits=0123456789 +alpha=${upper}${lower} + +if test -z "$depmode" || test -z "$source" || test -z "$object"; then + echo "depcomp: Variables source, object and depmode must be set" 1>&2 + exit 1 +fi + +# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. +depfile=${depfile-`echo "$object" | + sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} +tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} + +rm -f "$tmpdepfile" + +# Avoid interferences from the environment. +gccflag= dashmflag= + +# Some modes work just like other modes, but use different flags. We +# parameterize here, but still list the modes in the big case below, +# to make depend.m4 easier to write. Note that we *cannot* use a case +# here, because this file can only contain one case statement. +if test "$depmode" = hp; then + # HP compiler uses -M and no extra arg. + gccflag=-M + depmode=gcc +fi + +if test "$depmode" = dashXmstdout; then + # This is just like dashmstdout with a different argument. + dashmflag=-xM + depmode=dashmstdout +fi + +cygpath_u="cygpath -u -f -" +if test "$depmode" = msvcmsys; then + # This is just like msvisualcpp but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvisualcpp +fi + +if test "$depmode" = msvc7msys; then + # This is just like msvc7 but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvc7 +fi + +if test "$depmode" = xlc; then + # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. + gccflag=-qmakedep=gcc,-MF + depmode=gcc +fi + +case "$depmode" in +gcc3) +## gcc 3 implements dependency tracking that does exactly what +## we want. Yay! Note: for some reason libtool 1.4 doesn't like +## it if -MD -MP comes after the -MF stuff. Hmm. +## Unfortunately, FreeBSD c89 acceptance of flags depends upon +## the command line argument order; so add the flags where they +## appear in depend2.am. Note that the slowdown incurred here +## affects only configure: in makefiles, %FASTDEP% shortcuts this. + for arg + do + case $arg in + -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; + *) set fnord "$@" "$arg" ;; + esac + shift # fnord + shift # $arg + done + "$@" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + mv "$tmpdepfile" "$depfile" + ;; + +gcc) +## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. +## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. +## (see the conditional assignment to $gccflag above). +## There are various ways to get dependency output from gcc. Here's +## why we pick this rather obscure method: +## - Don't want to use -MD because we'd like the dependencies to end +## up in a subdir. Having to rename by hand is ugly. +## (We might end up doing this anyway to support other compilers.) +## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like +## -MM, not -M (despite what the docs say). Also, it might not be +## supported by the other compilers which use the 'gcc' depmode. +## - Using -M directly means running the compiler twice (even worse +## than renaming). + if test -z "$gccflag"; then + gccflag=-MD, + fi + "$@" -Wp,"$gccflag$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The second -e expression handles DOS-style file names with drive + # letters. + sed -e 's/^[^:]*: / /' \ + -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" +## This next piece of magic avoids the "deleted header file" problem. +## The problem is that when a header file which appears in a .P file +## is deleted, the dependency causes make to die (because there is +## typically no way to rebuild the header). We avoid this by adding +## dummy dependencies for each header file. Too bad gcc doesn't do +## this for us directly. +## Some versions of gcc put a space before the ':'. On the theory +## that the space means something, we add a space to the output as +## well. hp depmode also adds that space, but also prefixes the VPATH +## to the object. Take care to not repeat it in the output. +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +sgi) + if test "$libtool" = yes; then + "$@" "-Wp,-MDupdate,$tmpdepfile" + else + "$@" -MDupdate "$tmpdepfile" + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + + if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files + echo "$object : \\" > "$depfile" + # Clip off the initial element (the dependent). Don't try to be + # clever and replace this with sed code, as IRIX sed won't handle + # lines with more than a fixed number of characters (4096 in + # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; + # the IRIX cc adds comments like '#:fec' to the end of the + # dependency line. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ + | tr "$nl" ' ' >> "$depfile" + echo >> "$depfile" + # The second pass generates a dummy entry for each header file. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ + >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" + ;; + +xlc) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +aix) + # The C for AIX Compiler uses -M and outputs the dependencies + # in a .u file. In older versions, this file always lives in the + # current directory. Also, the AIX compiler puts '$object:' at the + # start of each line; $object doesn't have directory information. + # Version 6 uses the directory in both cases. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.u + tmpdepfile2=$base.u + tmpdepfile3=$dir.libs/$base.u + "$@" -Wc,-M + else + tmpdepfile1=$dir$base.u + tmpdepfile2=$dir$base.u + tmpdepfile3=$dir$base.u + "$@" -M + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + aix_post_process_depfile + ;; + +tcc) + # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 + # FIXME: That version still under development at the moment of writing. + # Make that this statement remains true also for stable, released + # versions. + # It will wrap lines (doesn't matter whether long or short) with a + # trailing '\', as in: + # + # foo.o : \ + # foo.c \ + # foo.h \ + # + # It will put a trailing '\' even on the last line, and will use leading + # spaces rather than leading tabs (at least since its commit 0394caf7 + # "Emit spaces for -MD"). + "$@" -MD -MF "$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. + # We have to change lines of the first kind to '$object: \'. + sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" + # And for each line of the second kind, we have to emit a 'dep.h:' + # dummy dependency, to avoid the deleted-header problem. + sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" + rm -f "$tmpdepfile" + ;; + +## The order of this option in the case statement is important, since the +## shell code in configure will try each of these formats in the order +## listed in this file. A plain '-MD' option would be understood by many +## compilers, so we must ensure this comes after the gcc and icc options. +pgcc) + # Portland's C compiler understands '-MD'. + # Will always output deps to 'file.d' where file is the root name of the + # source file under compilation, even if file resides in a subdirectory. + # The object file name does not affect the name of the '.d' file. + # pgcc 10.2 will output + # foo.o: sub/foo.c sub/foo.h + # and will wrap long lines using '\' : + # foo.o: sub/foo.c ... \ + # sub/foo.h ... \ + # ... + set_dir_from "$object" + # Use the source, not the object, to determine the base name, since + # that's sadly what pgcc will do too. + set_base_from "$source" + tmpdepfile=$base.d + + # For projects that build the same source file twice into different object + # files, the pgcc approach of using the *source* file root name can cause + # problems in parallel builds. Use a locking strategy to avoid stomping on + # the same $tmpdepfile. + lockdir=$base.d-lock + trap " + echo '$0: caught signal, cleaning up...' >&2 + rmdir '$lockdir' + exit 1 + " 1 2 13 15 + numtries=100 + i=$numtries + while test $i -gt 0; do + # mkdir is a portable test-and-set. + if mkdir "$lockdir" 2>/dev/null; then + # This process acquired the lock. + "$@" -MD + stat=$? + # Release the lock. + rmdir "$lockdir" + break + else + # If the lock is being held by a different process, wait + # until the winning process is done or we timeout. + while test -d "$lockdir" && test $i -gt 0; do + sleep 1 + i=`expr $i - 1` + done + fi + i=`expr $i - 1` + done + trap - 1 2 13 15 + if test $i -le 0; then + echo "$0: failed to acquire lock after $numtries attempts" >&2 + echo "$0: check lockdir '$lockdir'" >&2 + exit 1 + fi + + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each line is of the form `foo.o: dependent.h', + # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. + # Do two passes, one to just change these to + # `$object: dependent.h' and one to simply `dependent.h:'. + sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp2) + # The "hp" stanza above does not work with aCC (C++) and HP's ia64 + # compilers, which have integrated preprocessors. The correct option + # to use with these is +Maked; it writes dependencies to a file named + # 'foo.d', which lands next to the object file, wherever that + # happens to be. + # Much of this is similar to the tru64 case; see comments there. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir.libs/$base.d + "$@" -Wc,+Maked + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + "$@" +Maked + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" + do + test -f "$tmpdepfile" && break + done + if test -f "$tmpdepfile"; then + sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile" + # Add 'dependent.h:' lines. + sed -ne '2,${ + s/^ *// + s/ \\*$// + s/$/:/ + p + }' "$tmpdepfile" >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" "$tmpdepfile2" + ;; + +tru64) + # The Tru64 compiler uses -MD to generate dependencies as a side + # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. + # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put + # dependencies in 'foo.d' instead, so we check for that too. + # Subdirectories are respected. + set_dir_from "$object" + set_base_from "$object" + + if test "$libtool" = yes; then + # Libtool generates 2 separate objects for the 2 libraries. These + # two compilations output dependencies in $dir.libs/$base.o.d and + # in $dir$base.o.d. We have to check for both files, because + # one of the two compilations can be disabled. We should prefer + # $dir$base.o.d over $dir.libs/$base.o.d because the latter is + # automatically cleaned when .libs/ is deleted, while ignoring + # the former would cause a distcleancheck panic. + tmpdepfile1=$dir$base.o.d # libtool 1.5 + tmpdepfile2=$dir.libs/$base.o.d # Likewise. + tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504 + "$@" -Wc,-MD + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + tmpdepfile3=$dir$base.d + "$@" -MD + fi + + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + # Same post-processing that is required for AIX mode. + aix_post_process_depfile + ;; + +msvc7) + if test "$libtool" = yes; then + showIncludes=-Wc,-showIncludes + else + showIncludes=-showIncludes + fi + "$@" $showIncludes > "$tmpdepfile" + stat=$? + grep -v '^Note: including file: ' "$tmpdepfile" + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The first sed program below extracts the file names and escapes + # backslashes for cygpath. The second sed program outputs the file + # name when reading, but also accumulates all include files in the + # hold buffer in order to output them again at the end. This only + # works with sed implementations that can handle large buffers. + sed < "$tmpdepfile" -n ' +/^Note: including file: *\(.*\)/ { + s//\1/ + s/\\/\\\\/g + p +}' | $cygpath_u | sort -u | sed -n ' +s/ /\\ /g +s/\(.*\)/'"$tab"'\1 \\/p +s/.\(.*\) \\/\1:/ +H +$ { + s/.*/'"$tab"'/ + G + p +}' >> "$depfile" + echo >> "$depfile" # make sure the fragment doesn't end with a backslash + rm -f "$tmpdepfile" + ;; + +msvc7msys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +#nosideeffect) + # This comment above is used by automake to tell side-effect + # dependency tracking mechanisms from slower ones. + +dashmstdout) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout, regardless of -o. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + test -z "$dashmflag" && dashmflag=-M + # Require at least two characters before searching for ':' + # in the target name. This is to cope with DOS-style filenames: + # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. + "$@" $dashmflag | + sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile" + rm -f "$depfile" + cat < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this sed invocation + # correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +dashXmstdout) + # This case only exists to satisfy depend.m4. It is never actually + # run, as this mode is specially recognized in the preamble. + exit 1 + ;; + +makedepend) + "$@" || exit $? + # Remove any Libtool call + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + # X makedepend + shift + cleared=no eat=no + for arg + do + case $cleared in + no) + set ""; shift + cleared=yes ;; + esac + if test $eat = yes; then + eat=no + continue + fi + case "$arg" in + -D*|-I*) + set fnord "$@" "$arg"; shift ;; + # Strip any option that makedepend may not understand. Remove + # the object too, otherwise makedepend will parse it as a source file. + -arch) + eat=yes ;; + -*|$object) + ;; + *) + set fnord "$@" "$arg"; shift ;; + esac + done + obj_suffix=`echo "$object" | sed 's/^.*\././'` + touch "$tmpdepfile" + ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" + rm -f "$depfile" + # makedepend may prepend the VPATH from the source file name to the object. + # No need to regex-escape $object, excess matching of '.' is harmless. + sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process the last invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed '1,2d' "$tmpdepfile" \ + | tr ' ' "$nl" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" "$tmpdepfile".bak + ;; + +cpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + "$@" -E \ + | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + | sed '$ s: \\$::' > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + cat < "$tmpdepfile" >> "$depfile" + sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvisualcpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + IFS=" " + for arg + do + case "$arg" in + -o) + shift + ;; + $object) + shift + ;; + "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") + set fnord "$@" + shift + shift + ;; + *) + set fnord "$@" "$arg" + shift + shift + ;; + esac + done + "$@" -E 2>/dev/null | + sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" + echo "$tab" >> "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvcmsys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +none) + exec "$@" + ;; + +*) + echo "Unknown depmode $depmode" 1>&2 + exit 1 + ;; +esac + +exit 0 + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/hashtable.c b/hashtable.c deleted file mode 100644 index a397879..0000000 --- a/hashtable.c +++ /dev/null @@ -1,565 +0,0 @@ -/** - * C hashtable implementation - * - * Copyright (C) 2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - */ - -/* - * GENERAL INFO - * - * You might want to read the beginning of hashtable.h first. - * - * In some places "rehashing" and in other ones "resizing" seemed to - * be the right word to use. They mean more or less the same. - * - * Functions starting with ht_ are part of the API. Internal functions - * are declared static. I also made some of them inline (either - * because they were extremely short or only called from 1 place). - * - * Hashtable size is always a power of 2. - * - * When the hashtable is ¾ full, a new, 2x bigger table is allocated - * and whenever one of 4 basic operations (adding, removing, setting, - * getting) occurs, 4 slots are being rehashed from old table into 8 - * slots in new table. Similarly, when hashtable is ¼ full, a new, - * 2x smaller table is allocated and each of subsequent operations - * rehashes 8 entries from old table into 4 in new table. - * This mechanism has been made lazier: getting and removing don't - * trigger growing of ht even if it's 3/4 full. Similarly, getting, - * setting and adding don't trigger shrinking. - * Once resizing is triggered, however, any of the operations will - * contribute to rehashing. Even if, for example, the operation is - * ADD and the table is being shrinked. - * This means, that if we have a hashtable of size n which is ¾ full - * and growing is triggered, then each subsequent call to - * ht_{add,rem,get,set}() rehashes some entries and, depending on - * how frequently and how successfully each of these 4 funcs was - * called, at the end of resizing we get a size 2n hashtable which is - * between ¼ and ½ full. Similarly, if shrinking of a ¼ full - * hashtable of size n is triggered, then after some operations we - * get a size ½n hashtable, that is somewhere between ¼ and ¾ full. - * One can see now, that we always keep the hashtable between ¼ and ¾ - * full (with the exception of a minimal size one, that can be empty). - */ - -#include "hashtable.h" - -#include -#include -#include -#include - -#ifdef _USE_INLINE -#define INLINE inline -#else -#define INLINE -#endif - -/* - * We won't shrink hashtable below this size. Newly created one will - * be this big. - */ -#define MIN_SIZE 4 - -/* Special value of ht->rehashing_position. */ -#define NOT_REHASHING ((ssize_t) -1) - -/* - * Those are possible return values of do_resizing_related_stuff() - * and rehash_some_entries() (which only returns the first 2). - */ -#define REHASHING_IN_PROGRESS 0 -#define REHASHING_NOT_IN_PROGRESS 1 -#define REHASHING_NO_MEM 2 - -/* Struct used to store a pair. */ -struct ht_node -{ - const void *key; - const void *val; - struct ht_node *next; -}; - -enum op - { - GET, - GET_THREADSAFE, - ADD, - SET, - REM, - }; - -int ht_init(hashtable_t *ht, - size_t (*hash)(const void *key), - int (*cmp)(const void *key1, const void *key2)) -{ - if (!(ht->tab = calloc(MIN_SIZE, sizeof(struct ht_node**)))) - return HT_NO_MEM; - - ht->tab_size = MIN_SIZE; - ht->rehashing_position = NOT_REHASHING; - ht->entries = 0; - ht->hashfunc = hash; - ht->cmpfunc = cmp; - - return HT_OK; -} - -/* First come some utilities :) */ - -static INLINE size_t min(size_t n1, size_t n2) -{ - return n1 < n2 ? n1 : n2; -} - -static INLINE size_t hash2(size_t n) -{ - /* I found this "hash improver" on the internet. */ - n ^= (n >> 20) ^ (n >> 12); - return n ^ (n >> 7) ^ (n >> 4); -} - -/* Below are 2 list-handling utility functions. */ -static INLINE struct ht_node *join_lists(struct ht_node *l1, - struct ht_node *l2) -{ - if (!l1) return l2; - if (!l2) return l1; - - struct ht_node *l1_last; - - for (l1_last = l1; l1_last->next; l1_last = l1_last->next); - - /* Append l2 to the end of l1. */ - l1_last->next = l2; - - /* For convenience return the first element of the resulting list. */ - return l1; -} - - -static INLINE void push(struct ht_node *node, struct ht_node **list) -{ - node->next = *list; - *list = node; -} - -/* - * The following 2 rehash_* functions are helpers of rehash_some_entries(). - * This func rehashes 1 chain of entries in tab[] into 2 chains in newtab[]. - */ -static INLINE void rehash_position_growing(hashtable_t *ht) -{ - /* There are 2 possible new positions of an entry in a 2x bigger ht. */ - struct ht_node *list0 = NULL, *list1 = NULL; - - size_t old_position = ht->rehashing_position, - new_position0 = old_position, - new_position1 = old_position | ht->tab_size; - - struct ht_node *pair = ht->tab[old_position], *next_pair; - - while (pair) - { - next_pair = pair->next; - - size_t new_position = hash2(ht->hashfunc(pair->key)) - & (ht->new_size - 1); - - push(pair, new_position == new_position1 ? &list1 : &list0); - - pair = next_pair; - } - - ht->newtab[new_position0] = list0; - ht->newtab[new_position1] = list1; - - ht->rehashing_position++; -} - -/* This func rehashes 2 chains of entries in tab[] into 1 chain in newtab[]. */ -static INLINE void rehash_2positions_shrinking(hashtable_t *ht) -{ - size_t new_position = ht->rehashing_position, - old_position0 = new_position, - old_position1 = new_position | ht->new_size; - - ht->newtab[new_position] = join_lists(ht->tab[old_position0], - ht->tab[old_position1]); - - ht->rehashing_position++; -} - -/* - * Rehashes 4(8) positions from tab to newtab. If those were the last - * enetries to rehash, the function takes care of everything - * (like deallocating old tab) and returns REHASHING_NOT_IN_PROGRESS. - * Otherwise, returns REHASHING_IN_PROGRESS. - * Caller must make sure rehashing was started b4 calling this func. - */ -static int rehash_some_entries(hashtable_t *ht) -{ - int rehashes_left = 4; - - if (ht->new_size > ht->tab_size) /* growing ht */ - { - while(rehashes_left--) rehash_position_growing(ht); - if (ht->rehashing_position != ht->tab_size) - return REHASHING_IN_PROGRESS; - } - else /* shrinking ht */ - { - while(rehashes_left--) rehash_2positions_shrinking(ht); - if (ht->rehashing_position != ht->new_size) - return REHASHING_IN_PROGRESS; - } - - /* rehashing finishes */ - ht->rehashing_position = NOT_REHASHING; - ht->tab_size = ht->new_size; - free(ht->tab); - ht->tab = ht->newtab; - - return REHASHING_NOT_IN_PROGRESS; -} - -static INLINE bool resizing_taking_place(hashtable_t *ht) -{ - return !(ht->rehashing_position == NOT_REHASHING); -} - -void ht_finish_resizing(hashtable_t *ht) -{ - if (resizing_taking_place(ht)) - while (rehash_some_entries(ht) == REHASHING_IN_PROGRESS); -} - -static INLINE bool needs_growing(hashtable_t *ht) -{ - return ht->entries >= 3 * ht->tab_size / 4; -} - -static INLINE bool needs_shrinking(hashtable_t *ht) -{ - return ht->tab_size > MIN_SIZE - && ht->entries <= ht->tab_size / 4; -} -/* - * Each of hashtable operations (add, set, rem, get) should also - * attempt to do part of resizing. This way resizing operation - * which is O(n) is distributed among many hashtable accesses - * each of them still being O(1). Without this the the amortized - * complexity of ht accesses would still be O(1), but a single access - * would sometimes be O(n). - * Other function that adds, sets, gets or removes sth from ht uses - * this one to do this "part of resizing" mentioned above. - * This func returns REHASHING_NO_MEM on failed malloc (won't happen - * for GET or REM operation) and REHASHING_[NOT_]IN_PROGRESS otherwise. - */ -static INLINE int -do_resizing_related_stuff(hashtable_t *ht, const void *key, enum op op) -{ - bool resizing = resizing_taking_place(ht); - - if (!resizing) - { - size_t new_size; - - switch (op) - { - case GET: - goto dont_start_resizing; - case ADD: - case SET: - if (needs_growing(ht)) - new_size = ht->tab_size * 2; - else - goto dont_start_resizing; - break; - default: /* case REM */ - if (needs_shrinking(ht)) - new_size = ht->tab_size / 2; - else - goto dont_start_resizing; - } - - struct ht_node **newtab; - if (!(newtab = malloc(new_size * sizeof(struct ht_node*)))) - return op == REM ? REHASHING_NOT_IN_PROGRESS : REHASHING_NO_MEM; - - ht->newtab = newtab; - ht->new_size = new_size; - ht->rehashing_position = 0; - - resizing = true; - } - - dont_start_resizing: - - return resizing ? - rehash_some_entries(ht) : REHASHING_NOT_IN_PROGRESS; -} - -/* - * This is a chaining hashtable, so each element in the array (table) - * is actually a list of entries. All operations (adding, removing, - * etc.) need to find the right list of entries (here called "bucket") - * for a given key first, so it makes sense to do it in a separate - * function. The bucket may be in tab or newtab if resizing is taking - * place. Being informed by the caller if resizing is in progress, - * this func does not need to check for it by itself. - */ -static INLINE struct ht_node **find_bucket(hashtable_t *ht, const void *key, - bool resizing_in_progress) -{ - size_t hash = hash2(ht->hashfunc(key)), - destination_tab_size, position; - - struct ht_node **destination_tab; - - if (resizing_in_progress) - /* - * Here we must check whether our key's bucket is still - * in ht->tab or already rehashed to ht->newtab. - */ - { - size_t smaller_tab_size = min(ht->tab_size, ht->new_size), - smaller_tab_position = hash & (smaller_tab_size - 1); - - if (smaller_tab_position < ht->rehashing_position) - { - destination_tab = ht->newtab; - destination_tab_size = ht->new_size; - } - else - { - destination_tab = ht->tab; - destination_tab_size = ht->tab_size; - } - } - else - /* In this case we know, we're working on ht->tab and not newtab. */ - { - destination_tab = ht->tab; - destination_tab_size = ht->tab_size; - } - - position = hash & (destination_tab_size - 1); - return &destination_tab[position]; -} - -/* - * Operations of adding, removing, etc. all work on list of entries - * (bucket) to wchich key hashes and they have some common logic, so - * it made sense to make a single function, that does the right - * operation based on an enum passed to it. - */ -static INLINE int -perform_operation_on_bucket(hashtable_t *ht, struct ht_node **bucket, - const void *key, const void *val, - void **keyptr, void **valptr, - enum op op) -{ - struct ht_node **pairptr, *pair; - - for (pairptr = bucket, pair = *pairptr; - pair; - pairptr = &pair->next, pair = pair->next) - - if (!ht->cmpfunc(key, pair->key)) - { - if (op == ADD) - return HT_KEY_PRESENT; - - if (keyptr) *keyptr = (void*) pair->key; - if (valptr) *valptr = (void*) pair->val; - - switch (op) - { - case GET: - case GET_THREADSAFE: - { - return HT_OK; - } - case SET: - { - pair->key = key; - pair->val = val; - return HT_OK; - } - default: /* case REM */ - { - *pairptr = pair->next; - free(pair); - ht->entries--; - return HT_OK; - } - } - } - - if (op == GET || op == GET_THREADSAFE || op == REM) - return HT_KEY_ABSENT; - - /* op == ADD || op == SET */ - - struct ht_node *new_pair = malloc(sizeof(struct ht_node)); - if (!new_pair) - return HT_NO_MEM; - - *new_pair = (struct ht_node) {.key = key, .val = val}; - push(new_pair, bucket); - ht->entries++; - - return HT_OK; -} - -/* Generic function for performing of adding, removing, setting and getting. */ -static int perform_operation(hashtable_t *ht, const void *key, const void *val, - void **keyptr, void **valptr, enum op op) -{ - bool resizing_in_progress; - - if (op == GET_THREADSAFE) { - resizing_in_progress = resizing_taking_place(ht); - goto skip_resizing; - } - - switch (do_resizing_related_stuff(ht, key, op)) - { - case REHASHING_IN_PROGRESS: - resizing_in_progress = true; - break; - case REHASHING_NOT_IN_PROGRESS: - resizing_in_progress = false; - break; - default: /* case REHASHING_NO_MEM */ - return HT_NO_MEM; - } - - struct ht_node **bucket; - - skip_resizing: - bucket = find_bucket(ht, key, resizing_in_progress); - - return perform_operation_on_bucket(ht, bucket, key, val, - keyptr, valptr, op); -} - -/* The 5 functions below are the main part of the API. */ -int ht_get(hashtable_t *ht, const void *key, - void **storedkey, void **val) -{ - return perform_operation(ht, key, NULL, storedkey, val, GET); -} - -int ht_get_threadsafe(hashtable_t *ht, const void *key, - void **storedkey, void **val) -{ - return perform_operation(ht, key, NULL, storedkey, val, - GET_THREADSAFE); -} - -int ht_add(hashtable_t *ht, const void *key, const void *val) -{ - return perform_operation(ht, key, val, NULL, NULL, ADD); -} - -int ht_set(hashtable_t *ht, const void *key, const void *val, - void **oldkey, void **oldval) -{ - return perform_operation(ht, key, val, oldkey, oldval, SET); -} - -int ht_rem(hashtable_t *ht, const void *key, - void **storedkey, void **val) -{ - return perform_operation(ht, key, NULL, storedkey, val, REM); -} - -/* - * As mentioned in hashtable.h, this func does not deallocate keys - * nor vals. One could use ht_map_destroy() if that is needed. - */ -void ht_destroy(hashtable_t *ht) -{ - ssize_t position; - - if (!ht->entries) - goto free_tab; - - ht_finish_resizing(ht); - - struct ht_node **tab = ht->tab; - - for (position = ht->tab_size - 1; position >= 0; position--) - { - struct ht_node *pair = tab[position], *nextpair; - - while (pair) - { - nextpair = pair->next; - free(pair); - pair = nextpair; - } - } - - free_tab: - free(ht->tab); -} - -void ht_map(hashtable_t *ht, void *arg, - void (*mapfunc)(const void *key, void *val, void *arg)) -{ - ssize_t position; - - if (!ht->entries) - return; - - ht_finish_resizing(ht); - - struct ht_node **tab = ht->tab, *pair; - - for (position = ht->tab_size - 1; position >= 0; position--) - { - for (pair = tab[position]; pair; pair = pair->next) - mapfunc(pair->key, (void*) pair->val, arg); - } -} - -void ht_map_destroy(hashtable_t *ht, void *arg, - void (*mapfunc)(void *key, void *val, void *arg)) -{ - /* - * If mapfunc() deallocates keys, the following 2 lines make - * assumption on ht_destroy(), that it doesn't call ht->hashfunc() - * or ht->cmpfunc() on keys. - */ - ht_map(ht, arg, (void (*)(const void*, void*, void*)) mapfunc); - ht_destroy(ht); -} - -/* - * These 2 functions are for easy making of hashtable with strings as - * keys. Note that this hash is *not* secure against DoS attacks. - */ -size_t ht_string_hash(const char *key) -{ - size_t i = 0, hash = (size_t) 0xa1bad2dead3beef4; - - do - { - char shift = ((unsigned char) key[i]) % sizeof(size_t); - hash += ((hash >> shift) | (hash << (sizeof(size_t) - shift))) - ^ key[i]; - } - while (key[i++]); - - return hash; -} - -int ht_string_init(hashtable_t *ht) -{ - return ht_init(ht, (size_t (*)(const void*)) &ht_string_hash, - (int (*)(const void*, const void*)) &strcmp); -} diff --git a/hashtable.h b/hashtable.h deleted file mode 100644 index 7d85b33..0000000 --- a/hashtable.h +++ /dev/null @@ -1,143 +0,0 @@ -/** - * C hashtable implementation - * - * Copyright (C) 2018-2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - */ - -/* - * https://git.koszko.org/C-hashtable - * Note that this version is likely to be more up-to-date than the one linked. - * - * This is a separate chaining hashtable for general use. It's not - * universal: it uses malloc() and free(), so it requires a standard - * library to function and it's for single-threaded use only. It does, - * however, have one advantage: it rehashes automatically, both when - * it grows in size and when it shrinks, while retaining O(1) access - * time. A normal hashtable with rehashing would have amortized O(1) - * access time, but there would be single access with O(n) time - * complexity for each rehashing. In this hashtable, rehashing is done - * in parts. For example, a ht_add(), aside from adding an entry, - * might also rehash 4 other entries from old table to the new one and - * leave the rest unrehashed. - * Of course, it is assumed that a good hash function is provided - * by the programmer. If not, accesses may still degenerate to O(n). - * Hence, this hashtable is not secure against DoS attacks. - */ - -#ifndef HASHTABLE_H -#define HASHTABLE_H - -#include /* for ssize_t */ - -/* These are possible return values of some ht_ functions (see below). */ -#define HT_OK 0 -#define HT_NO_MEM -1 -#define HT_KEY_PRESENT -2 -#define HT_KEY_ABSENT -3 - -typedef struct -{ - /* All members are considered implementation details, except for "entries", - * which can be read, but should not be modified by external code. - */ - size_t entries; - - /* - * tab[] is where entries (chains of entries) are stored. - * When rehashing, newtab[] is also used. - */ - struct ht_node **tab, **newtab; - - /* sizes of tab[] and newtab[], obviously */ - size_t tab_size, new_size; - - size_t (*hashfunc)(const void* key); - int (*cmpfunc)(const void* key1, const void *key2); - - /* - * When no rehashing is taking place, rehashing_position is -1 (#define'd as - * NOT_REHASHING in hashtable.c). At any other time, rehashing_position is the - * lowest not yet rehashed position in the smaller table. - */ - ssize_t rehashing_position; -} hashtable_t; - -/* - * All int functions return 0 (#define'd as HT_OK) on success and in - * case of failure they return error codes, as described below. - */ - -/* May fail with HT_NO_MEM. */ -int ht_init(hashtable_t *ht, - size_t (*hash)(const void* key), - int (*cmp)(const void* key1, const void *key2)); - -/* May fail with HT_NO_MEM and HT_KEY_PRESENT. */ -int ht_add(hashtable_t *ht, const void *key, const void *val); - -/* - * May fail with HT_NO_MEM. If key was not yet present in hashtable, *oldkey and - * *oldval are not modified. Otherwise, just-replaced pair is stored in them. - */ -int ht_set(hashtable_t *ht, const void *key, const void *val, - void **oldkey, void **oldval); - -/* - * If present, the looked for pair is stored in *storedkey and *val. Otherwise, - * they're not modified and HT_KEY_ABSENT is returned. storedkey and/or val can - * be NULL. - */ -int ht_get(hashtable_t *ht, const void *key, void **storedkey, void **val); - -/* - * Works like ht_get() but is thread-safe with regard to other calls to - * ht_get_threadsafe() on the same hashtable. Note that the hash and compare - * functions supplied to the hashtable also have to be thread-safe (that - * requirement is of course met for those used by ht_string_init()). - */ -int ht_get_threadsafe(hashtable_t *ht, const void *key, - void **storedkey, void **val); - -/* Works like the above but also removes the pair from ht if found. */ -int ht_rem(hashtable_t *ht, const void *key, void **storedkey, void **val); - -/* - * De-initializes the hashtable freeing all its structures. The programmer is - * responsible for freeing keys and values if they were allocated from the heap - * (see ht_map_destroy() below). - */ -void ht_destroy(hashtable_t *ht); - -/* Calls ht_finish_resizing(), then maps through ht. */ -void ht_map(hashtable_t *ht, void *arg, - void (*mapfunc)(const void *key, void *val, void *arg)); - -/* - * It might be tempting to use ht_map() to free() all keys and values stored in - * ht and then call ht_destroy(). If you think about it, ht_map() would leave - * hashtable in a broken state - with keys being deallocated. Depending on the - * implementation, ht_destroy() could cope with that, but we'd rather not - * guarrantee anything, so here's another function just for that - mapping - * through entries and destroying the hashtable immediately after, explicitly - * allowing the mapping function to deallocate keys. - */ -void ht_map_destroy(hashtable_t *ht, void *arg, - void (*mapfunc)(void *key, void *val, void *arg)); - -/* - * If hashtable is in the process of being rehashed, this function - * processes it to the end. Otherwise - it does nothing. - */ -void ht_finish_resizing(hashtable_t *ht); - -/* Included, since strings are commonly used as keys. */ -size_t ht_string_hash(const char *key); - -/* - * May fail with HT_NO_MEM. Initializes ht for use with string keys - * (using ht_string_hash() and strcmp()). - */ -int ht_string_init(hashtable_t *ht); - -#endif /* HASHTABLE_H */ diff --git a/install-sh b/install-sh new file mode 100755 index 0000000..8175c64 --- /dev/null +++ b/install-sh @@ -0,0 +1,518 @@ +#!/bin/sh +# install - install a program, script, or datafile + +scriptversion=2018-03-11.20; # UTC + +# This originates from X11R5 (mit/util/scripts/install.sh), which was +# later released in X11R6 (xc/config/util/install.sh) with the +# following copyright and license. +# +# Copyright (C) 1994 X Consortium +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to +# deal in the Software without restriction, including without limitation the +# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +# sell copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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[-T] SRCFILE DSTFILE + or: $0 [OPTION]... SRCFILES... DIRECTORY + or: $0 [OPTION]... -t DIRECTORY SRCFILES... + or: $0 [OPTION]... -d DIRECTORIES... + +In the 1st form, copy SRCFILE to DSTFILE. +In the 2nd and 3rd, copy all SRCFILES to DIRECTORY. +In the 4th, create DIRECTORIES. + +Options: + --help display this help and exit. + --version display version info and exit. + + -c (ignored) + -C install only if different (preserve the last data modification time) + -d create directories instead of installing files. + -g GROUP $chgrpprog installed files to GROUP. + -m MODE $chmodprog installed files to MODE. + -o USER $chownprog installed files to USER. + -s $stripprog installed files. + -t DIRECTORY install into DIRECTORY. + -T report an error if DSTFILE is a directory. + +Environment variables override the default commands: + CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG + RMPROG STRIPPROG +" + +while test $# -ne 0; do + case $1 in + -c) ;; + + -C) copy_on_change=true;; + + -d) dir_arg=true;; + + -g) chgrpcmd="$chgrpprog $2" + shift;; + + --help) echo "$usage"; exit $?;; + + -m) mode=$2 + case $mode in + *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*) + echo "$0: invalid mode: $mode" >&2 + exit 1;; + esac + shift;; + + -o) chowncmd="$chownprog $2" + shift;; + + -s) stripcmd=$stripprog;; + + -t) + is_target_a_directory=always + dst_arg=$2 + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + shift;; + + -T) is_target_a_directory=never;; + + --version) echo "$0 $scriptversion"; exit $?;; + + --) shift + break;; + + -*) echo "$0: invalid option: $1" >&2 + exit 1;; + + *) break;; + esac + shift +done + +# We allow the use of options -d and -T together, by making -d +# take the precedence; this is for compatibility with GNU install. + +if test -n "$dir_arg"; then + if test -n "$dst_arg"; then + echo "$0: target directory not allowed when installing a directory." >&2 + exit 1 + fi +fi + +if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then + # When -d is used, all remaining arguments are directories to create. + # When -t is used, the destination is already specified. + # Otherwise, the last argument is the destination. Remove it from $@. + for arg + do + if test -n "$dst_arg"; then + # $@ is not empty: it contains at least $arg. + set fnord "$@" "$dst_arg" + shift # fnord + fi + shift # arg + dst_arg=$arg + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + done +fi + +if test $# -eq 0; then + if test -z "$dir_arg"; then + echo "$0: no input file specified." >&2 + exit 1 + fi + # It's OK to call 'install-sh -d' without argument. + # This can happen when creating conditional directories. + exit 0 +fi + +if test -z "$dir_arg"; then + if test $# -gt 1 || test "$is_target_a_directory" = always; then + if test ! -d "$dst_arg"; then + echo "$0: $dst_arg: Is not a directory." >&2 + exit 1 + fi + fi +fi + +if test -z "$dir_arg"; then + do_exit='(exit $ret); exit $ret' + trap "ret=129; $do_exit" 1 + trap "ret=130; $do_exit" 2 + trap "ret=141; $do_exit" 13 + trap "ret=143; $do_exit" 15 + + # Set umask so as not to create temps with too-generous modes. + # However, 'strip' requires both read and write access to temps. + case $mode in + # Optimize common cases. + *644) cp_umask=133;; + *755) cp_umask=22;; + + *[0-7]) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw='% 200' + fi + cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;; + *) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw=,u+rw + fi + cp_umask=$mode$u_plus_rw;; + esac +fi + +for src +do + # Protect names problematic for 'test' and other utilities. + case $src in + -* | [=\(\)!]) src=./$src;; + esac + + if test -n "$dir_arg"; then + dst=$src + dstdir=$dst + test -d "$dstdir" + dstdir_status=$? + else + + # Waiting for this to be detected by the "$cpprog $src $dsttmp" command + # might cause directories to be created, which would be especially bad + # if $src (and thus $dsttmp) contains '*'. + if test ! -f "$src" && test ! -d "$src"; then + echo "$0: $src does not exist." >&2 + exit 1 + fi + + if test -z "$dst_arg"; then + echo "$0: no destination specified." >&2 + exit 1 + fi + dst=$dst_arg + + # If destination is a directory, append the input filename. + if test -d "$dst"; then + if test "$is_target_a_directory" = never; then + echo "$0: $dst_arg: Is a directory" >&2 + exit 1 + fi + dstdir=$dst + dstbase=`basename "$src"` + case $dst in + */) dst=$dst$dstbase;; + *) dst=$dst/$dstbase;; + esac + dstdir_status=0 + else + dstdir=`dirname "$dst"` + test -d "$dstdir" + dstdir_status=$? + fi + fi + + case $dstdir in + */) dstdirslash=$dstdir;; + *) dstdirslash=$dstdir/;; + esac + + obsolete_mkdir_used=false + + if test $dstdir_status != 0; then + case $posix_mkdir in + '') + # Create intermediate dirs using mode 755 as modified by the umask. + # This is like FreeBSD 'install' as of 1997-10-28. + umask=`umask` + case $stripcmd.$umask in + # Optimize common cases. + *[2367][2367]) mkdir_umask=$umask;; + .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;; + + *[0-7]) + mkdir_umask=`expr $umask + 22 \ + - $umask % 100 % 40 + $umask % 20 \ + - $umask % 10 % 4 + $umask % 2 + `;; + *) mkdir_umask=$umask,go-w;; + esac + + # With -d, create the new directory with the user-specified mode. + # Otherwise, rely on $mkdir_umask. + if test -n "$dir_arg"; then + mkdir_mode=-m$mode + else + mkdir_mode= + fi + + posix_mkdir=false + case $umask in + *[123567][0-7][0-7]) + # POSIX mkdir -p sets u+wx bits regardless of umask, which + # is incompatible with FreeBSD 'install' when (umask & 300) != 0. + ;; + *) + # Note that $RANDOM variable is not portable (e.g. dash); Use it + # here however when possible just to lower collision chance. + tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ + + trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0 + + # Because "mkdir -p" follows existing symlinks and we likely work + # directly in world-writeable /tmp, make sure that the '$tmpdir' + # directory is successfully created first before we actually test + # 'mkdir -p' feature. + if (umask $mkdir_umask && + $mkdirprog $mkdir_mode "$tmpdir" && + exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1 + then + if test -z "$dir_arg" || { + # Check for POSIX incompatibilities with -m. + # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or + # other-writable bit of parent directory when it shouldn't. + # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. + test_tmpdir="$tmpdir/a" + ls_ld_tmpdir=`ls -ld "$test_tmpdir"` + case $ls_ld_tmpdir in + d????-?r-*) different_mode=700;; + d????-?--*) different_mode=755;; + *) false;; + esac && + $mkdirprog -m$different_mode -p -- "$test_tmpdir" && { + ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"` + test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" + } + } + then posix_mkdir=: + fi + rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" + else + # Remove any dirs left behind by ancient mkdir implementations. + rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null + fi + trap '' 0;; + esac;; + esac + + if + $posix_mkdir && ( + umask $mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir" + ) + then : + else + + # The umask is ridiculous, or mkdir does not conform to POSIX, + # or it failed possibly due to a race condition. Create the + # directory the slow way, step by step, checking for races as we go. + + case $dstdir in + /*) prefix='/';; + [-=\(\)!]*) prefix='./';; + *) prefix='';; + esac + + oIFS=$IFS + IFS=/ + set -f + set fnord $dstdir + shift + set +f + IFS=$oIFS + + prefixes= + + for d + do + test X"$d" = X && continue + + prefix=$prefix$d + if test -d "$prefix"; then + prefixes= + else + if $posix_mkdir; then + (umask=$mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break + # Don't fail if two instances are running concurrently. + test -d "$prefix" || exit 1 + else + case $prefix in + *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;; + *) qprefix=$prefix;; + esac + prefixes="$prefixes '$qprefix'" + fi + fi + prefix=$prefix/ + done + + if test -n "$prefixes"; then + # Don't fail if two instances are running concurrently. + (umask $mkdir_umask && + eval "\$doit_exec \$mkdirprog $prefixes") || + test -d "$dstdir" || exit 1 + obsolete_mkdir_used=true + fi + fi + fi + + if test -n "$dir_arg"; then + { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && + { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || + test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 + else + + # Make a couple of temp file names in the proper directory. + dsttmp=${dstdirslash}_inst.$$_ + rmtmp=${dstdirslash}_rm.$$_ + + # Trap to clean up those temp files at exit. + trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 + + # Copy the file name to the temp name. + (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && + + # and set any options; do chmod last to preserve setuid bits. + # + # If any of these fail, we abort the whole thing. If we want to + # ignore errors from any of these, just make sure not to ignore + # errors from the above "$doit $cpprog $src $dsttmp" command. + # + { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && + { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && + { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && + + # If -C, don't bother to copy if it wouldn't change the file. + if $copy_on_change && + old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && + new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && + set -f && + set X $old && old=:$2:$4:$5:$6 && + set X $new && new=:$2:$4:$5:$6 && + set +f && + test "$old" = "$new" && + $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 + then + rm -f "$dsttmp" + else + # Rename the file to the real destination. + $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || + + # The rename failed, perhaps because mv can't rename something else + # to itself, or perhaps because mv is so ancient that it does not + # support -f. + { + # Now remove or move aside any old file at destination location. + # We try this two ways since rm can't unlink itself on some + # systems and the destination file might be busy for other + # reasons. In this case, the final cleanup might fail but the new + # file should still install successfully. + { + test ! -f "$dst" || + $doit $rmcmd -f "$dst" 2>/dev/null || + { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && + { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } + } || + { echo "$0: cannot unlink or rename $dst" >&2 + (exit 1); exit 1 + } + } && + + # Now rename the file to the real destination. + $doit $mvcmd "$dsttmp" "$dst" + } + fi || exit 1 + + trap '' 0 + fi +done + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/licenses/gpl-2.txt b/licenses/gpl-2.txt new file mode 100644 index 0000000..dcfa4c2 --- /dev/null +++ b/licenses/gpl-2.txt @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +operating system on which the executable runs, unless that component +itself accompanies the executable. + +If distribution of executable or object code is made by offering +access to copy from a designated place, then offering equivalent +access to copy the source code from the same place counts as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + + 4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/main.c b/main.c deleted file mode 100644 index 4902585..0000000 --- a/main.c +++ /dev/null @@ -1,183 +0,0 @@ -/** - * part of Hydrilla - * Program entry point. - * - * Copyright (C) 2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - */ - -#define _POSIX_C_SOURCE 200809L /* S_IFMT, S_IFDIR */ - -#include -#include -#include -#include -#include -#include - -#include - -#include "string_buf.h" -#include "hashtable.h" - -#include "scriptbase.h" - -#define PRESERVE_ERRNO(call) \ - do { \ - int VERY_UNLIKELY_TO_COLLIDE_NAME_$$$$$$$$##__LINE__ = errno; \ - call; \ - errno = VERY_UNLIKELY_TO_COLLIDE_NAME_$$$$$$$$##__LINE__; \ - } while (0) - -static const char default_search_path[] = "/var/lib/hydrilla/content/"; - -static int process_scriptbase_subdir(struct scriptbase *base, - struct dirent *subdir, - struct stringbuf *path_buf, - struct stringbuf *json_buf) -{ - struct stat statbuf; - cJSON *index_json; - int retval = -1; - size_t initial_len = path_buf->buf_filled, len_dirname; - - if (sb_string(path_buf, subdir->d_name)) - return -1; - - len_dirname = path_buf->buf_filled; - - if (stat(path_buf->buf, &statbuf)) - return -1; - - if ((statbuf.st_mode & S_IFMT) != S_IFDIR) - return 0; - - if (sb_string(path_buf, "/index.json")) - return -1; - - printf("Reading %s\n", path_buf->buf); - - stringbuf_truncate(json_buf, 0); - if (sb_filepath(json_buf, path_buf->buf)) - return -1; - - index_json = cJSON_Parse(json_buf->buf); - if (!index_json) { - fprintf(stderr, "Failed to parse json.\n"); - return -1; - } - - stringbuf_truncate(path_buf, len_dirname); - - retval = catalogue_component(path_buf->buf + initial_len, - index_json, base); - - PRESERVE_ERRNO(cJSON_Delete(index_json)); - - return retval; -} - -static int prepare_scriptbase_from_dir(const char *dir_path, - struct scriptbase *base) -{ - DIR *maindir = NULL; - struct dirent *subdir; - struct stringbuf path_buf; - struct stringbuf json_buf; - size_t base_path_len; - int retval = -1; - - printf("Searching %s\n", dir_path); - stringbuf_init(&path_buf); - stringbuf_init(&json_buf); - - if (scriptbase_init(base, "https://hydrilla.koszko.org/resources")) - goto end; - - maindir = opendir(dir_path); - if (!maindir) - goto end; - - if (sb_sprintf(&path_buf, "%s/", dir_path)) - goto end; - - base_path_len = path_buf.buf_filled; - - while (true) { - errno = 0; - subdir = readdir(maindir); - if (!subdir) { - if (!errno) - retval = 0; - break; - } - - if (!strcmp(subdir->d_name, "..") || - !strcmp(subdir->d_name, ".")) - continue; - - stringbuf_truncate(&path_buf, base_path_len); - - errno = 0; - if (process_scriptbase_subdir(base, subdir, - &path_buf, &json_buf)) { - fprintf(stderr, "Error processing subdirectory %s%s", - subdir->d_name, errno ? ": " : ".\n"); - if (errno) - perror(NULL); - } - } - -end: - if (errno) - perror(NULL); - stringbuf_destroy(&path_buf); - stringbuf_destroy(&json_buf); - if (maindir) - closedir(maindir); - if (retval) - scriptbase_destroy(base); - - printf("Search in %s %s.\n", dir_path, retval ? "failed" : "finished"); - - return retval; -} - -static void print_component_name(const void *key, void *val, void *arg) -{ - char type = (char) (size_t) arg; - bool unfilled; - - unfilled = - (type == 's' && !((struct script*) val)->filled) || - (type == 'b' && !((struct bag*) val)->filled); - - printf("%s%s\n", (const char*) key, - unfilled ? " (referenced only)" : ""); -} - -int serve_scriptbase(struct scriptbase *base, bool); - -int main(int argc, char *argv[]) -{ - struct scriptbase base; - const char *search_path = default_search_path; - - if (argc > 1) - search_path = argv[1]; - - if (prepare_scriptbase_from_dir(search_path, &base)) - return -1; - puts("## LOADED SCRIPTS:"); - ht_map(&base.scripts, (void*) 's', print_component_name); - puts("## LOADED BAGS:"); - ht_map(&base.bags, (void*) 'b', print_component_name); - puts("## LOADED PAGES:"); - ht_map(&base.pages, (void*) 'p', print_component_name); - - if (serve_scriptbase(&base, !!getenv("HYDRILLA_WAIT_SIGTERM"))) - fprintf(stderr, "Error serving scriptbase.\n"); - - scriptbase_destroy(&base); - return 0; -} diff --git a/missing b/missing new file mode 100755 index 0000000..625aeb1 --- /dev/null +++ b/missing @@ -0,0 +1,215 @@ +#! /bin/sh +# Common wrapper for a few potentially missing GNU programs. + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 1996-2018 Free Software Foundation, Inc. +# Originally written by Fran,cois Pinard , 1996. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +if test $# -eq 0; then + echo 1>&2 "Try '$0 --help' for more information" + exit 1 +fi + +case $1 in + + --is-lightweight) + # Used by our autoconf macros to check whether the available missing + # script is modern enough. + exit 0 + ;; + + --run) + # Back-compat with the calling convention used by older automake. + shift + ;; + + -h|--h|--he|--hel|--help) + echo "\ +$0 [OPTION]... PROGRAM [ARGUMENT]... + +Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due +to PROGRAM being missing or too old. + +Options: + -h, --help display this help and exit + -v, --version output version information and exit + +Supported PROGRAM values: + aclocal autoconf autoheader autom4te automake makeinfo + bison yacc flex lex help2man + +Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and +'g' are ignored when checking the name. + +Send bug reports to ." + exit $? + ;; + + -v|--v|--ve|--ver|--vers|--versi|--versio|--version) + echo "missing $scriptversion (GNU Automake)" + exit $? + ;; + + -*) + echo 1>&2 "$0: unknown '$1' option" + echo 1>&2 "Try '$0 --help' for more information" + exit 1 + ;; + +esac + +# Run the given program, remember its exit status. +"$@"; st=$? + +# If it succeeded, we are done. +test $st -eq 0 && exit 0 + +# Also exit now if we it failed (or wasn't found), and '--version' was +# passed; such an option is passed most likely to detect whether the +# program is present and works. +case $2 in --version|--help) exit $st;; esac + +# Exit code 63 means version mismatch. This often happens when the user +# tries to use an ancient version of a tool on a file that requires a +# minimum version. +if test $st -eq 63; then + msg="probably too old" +elif test $st -eq 127; then + # Program was missing. + msg="missing on your system" +else + # Program was found and executed, but failed. Give up. + exit $st +fi + +perl_URL=https://www.perl.org/ +flex_URL=https://github.com/westes/flex +gnu_software_URL=https://www.gnu.org/software + +program_details () +{ + case $1 in + aclocal|automake) + echo "The '$1' program is part of the GNU Automake package:" + echo "<$gnu_software_URL/automake>" + echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/autoconf>" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + autoconf|autom4te|autoheader) + echo "The '$1' program is part of the GNU Autoconf package:" + echo "<$gnu_software_URL/autoconf/>" + echo "It also requires GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + esac +} + +give_advice () +{ + # Normalize program name to check for. + normalized_program=`echo "$1" | sed ' + s/^gnu-//; t + s/^gnu//; t + s/^g//; t'` + + printf '%s\n' "'$1' is $msg." + + configure_deps="'configure.ac' or m4 files included by 'configure.ac'" + case $normalized_program in + autoconf*) + echo "You should only need it if you modified 'configure.ac'," + echo "or m4 files included by it." + program_details 'autoconf' + ;; + autoheader*) + echo "You should only need it if you modified 'acconfig.h' or" + echo "$configure_deps." + program_details 'autoheader' + ;; + automake*) + echo "You should only need it if you modified 'Makefile.am' or" + echo "$configure_deps." + program_details 'automake' + ;; + aclocal*) + echo "You should only need it if you modified 'acinclude.m4' or" + echo "$configure_deps." + program_details 'aclocal' + ;; + autom4te*) + echo "You might have modified some maintainer files that require" + echo "the 'autom4te' program to be rebuilt." + program_details 'autom4te' + ;; + bison*|yacc*) + echo "You should only need it if you modified a '.y' file." + echo "You may want to install the GNU Bison package:" + echo "<$gnu_software_URL/bison/>" + ;; + lex*|flex*) + echo "You should only need it if you modified a '.l' file." + echo "You may want to install the Fast Lexical Analyzer package:" + echo "<$flex_URL>" + ;; + help2man*) + echo "You should only need it if you modified a dependency" \ + "of a man page." + echo "You may want to install the GNU Help2man package:" + echo "<$gnu_software_URL/help2man/>" + ;; + makeinfo*) + echo "You should only need it if you modified a '.texi' file, or" + echo "any other file indirectly affecting the aspect of the manual." + echo "You might want to install the Texinfo package:" + echo "<$gnu_software_URL/texinfo/>" + echo "The spurious makeinfo call might also be the consequence of" + echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might" + echo "want to install GNU make:" + echo "<$gnu_software_URL/make/>" + ;; + *) + echo "You might have modified some files without having the proper" + echo "tools for further handling them. Check the 'README' file, it" + echo "often tells you about the needed prerequisites for installing" + echo "this package. You may also peek at any GNU archive site, in" + echo "case some other package contains this missing '$1' program." + ;; + esac +} + +give_advice "$1" | sed -e '1s/^/WARNING: /' \ + -e '2,$s/^/ /' >&2 + +# Propagate the correct exit status (expected to be 127 for a program +# not found, 63 for a program that failed due to version mismatch). +exit $st + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/scriptbase.h b/scriptbase.h deleted file mode 100644 index f7694f7..0000000 --- a/scriptbase.h +++ /dev/null @@ -1,77 +0,0 @@ -/** - * part of Hydrilla - * Scriptbase struct and functions operating on it. - * - * Copyright (C) 2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - */ - -#ifndef SCRIPTBASE_H -#define SCRIPTBASE_H - -#include - -#include - -#include "hashtable.h" - -union component { - struct script *script; - struct bag *bag; - void *any; -}; - -struct component_ref { - struct component_ref *next; - union component component; - const char *component_type; -}; - -struct script { - char *name; - char *location; - char *sha256; - bool filled; -}; - -struct bag { - char *name; - struct component_ref *components, *last_component; - bool filled; -}; - -struct page { - char *pattern; - union component payload; - const char *payload_type; -}; - -struct scriptbase { - char *repo_url; - hashtable_t scripts; - hashtable_t bags; - hashtable_t pages; -}; - -int catalogue_component(const char *path, cJSON *index_json, - struct scriptbase *base); - -int scriptbase_init(struct scriptbase *base, const char *repo_url); - -void scriptbase_destroy(struct scriptbase *base); - -const struct script *get_script(const char *name, struct scriptbase *base); -const struct bag *get_bag(const char *name, struct scriptbase *base); -const struct page *get_pattern(const char *pattern, struct scriptbase *base); - -char *get_script_json(const char *name, struct scriptbase *base); -char *get_bag_json(const char *name, struct scriptbase *base); -char *get_pattern_json(const char *name, struct scriptbase *base); -char *get_page_query_json(const char *name, struct scriptbase *base); - -int init_url_lookup_regex(void); -void destroy_url_lookup_regex(void); -int lookup_url(const char *url, struct scriptbase *base, - int (*callback)(struct page*, void*), void *data); - -#endif /* SCRIPTBASE_H */ diff --git a/scriptbase_build.c b/scriptbase_build.c deleted file mode 100644 index 433e839..0000000 --- a/scriptbase_build.c +++ /dev/null @@ -1,540 +0,0 @@ -/** - * part of Hydrilla - * Routines for building scriptbase from resources and configuratons (stored in - * `/var/lib/hydrilla/content/' or another, user-specified location. - * - * Copyright (C) 2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - */ - -#define _POSIX_C_SOURCE 200809L /* strdup() */ - -#include -#include -#include -#include - -#include "hashtable.h" -#include "string_buf.h" - -#include "scriptbase.h" - -static const char scriptstr[] = "script", bagstr[] = "bag", pagestr[] = "page"; - - -static void *add_or_get(const char *component_name, char component_type, - struct scriptbase *base); - -static struct script *script_create(const char *name) -{ - struct script *script; - - script = malloc(sizeof(struct script)); - if (!script) - return NULL; - - script->name = strdup(name); - - if (!script->name) - goto free_script; - - script->location = NULL; - script->sha256 = NULL; - script->filled = false; - - return script; - -free_script: - free(script); - - return NULL; -} - -static int script_fill(struct script *script, const char *dir, - const char *filename, const char *sha256) -{ - char *location = NULL; - size_t location_len = 0, location_filled = 0; - - if (sb_raw_sprintf(&location, &location_len, &location_filled, - "%s/%s", dir, filename)) - goto free_location; - script->location = location; - - script->sha256 = strdup(sha256); - if (!script->sha256) - goto free_location; - - script->filled = true; - - return 0; - -free_location: - free(location); - script->location = NULL; - - return -1; -} - -static void script_free(struct script *script) -{ - if (!script) - return; - - free(script->name); - free(script->location); - free(script->sha256); - free(script); -} - -static struct bag *bag_create(const char *name) -{ - struct bag *bag; - - bag = malloc(sizeof(struct bag)); - if (!bag) - return NULL; - - bag->name = strdup(name); - - if (!bag->name) - goto free_bag; - - bag->components = NULL; - bag->last_component = NULL; - bag->filled = false; - - return bag; - -free_bag: - free(bag); - - return NULL; -} - -static int bag_add(struct bag *bag, const char *component_name, - const char *component_type, struct scriptbase *base) -{ - struct component_ref *new_ref; - - new_ref = malloc(sizeof(struct component_ref)); - if (!new_ref) - return -1; - - new_ref->component.any = - add_or_get(component_name, *component_type, base); - - if (!new_ref->component.any) - goto free_ref; - - new_ref->component_type = component_type; - new_ref->next = NULL; - - *(bag->components ? &bag->last_component->next : &bag->components) = - new_ref; - bag->last_component = new_ref; - bag->filled = true; - - return 0; - -free_ref: - free(new_ref); - - return -1; -} - -static void bag_free(struct bag *bag) -{ - struct component_ref *tmp1, *tmp2; - - if (!bag) - return; - - tmp1 = bag->components; - - while (tmp1) { - tmp2 = tmp1->next; - free(tmp1); - tmp1 = tmp2; - } - - free(bag->name); - free(bag); -} - -static struct page *page_create(const char *pattern, const char *payload_name, - const char *payload_type, - struct scriptbase *base) -{ - struct page *page; - - page = malloc(sizeof(struct page)); - if (!page) - return NULL; - - page->pattern = strdup(pattern); - if (!page->pattern) - goto free_page; - - if (payload_name) { - page->payload.any = - add_or_get(payload_name, *payload_type, base); - if (!page->payload.any) - goto free_pattern; - } else { - page->payload.any = NULL; - } - - page->payload_type = payload_type; - - return page; - -free_pattern: - free(page->pattern); - -free_page: - free(page); - - return NULL; -} - -static void page_free(struct page *page) -{ - if (!page) - return; - - free(page->pattern); - free(page); -} - -static void *add_or_get(const char *component_name, char component_type, - struct scriptbase *base) -{ - void *component; - hashtable_t *relevant_ht; - bool found = true; - - relevant_ht = component_type == *bagstr ? &base->bags : &base->scripts; - if (ht_get(relevant_ht, component_name, NULL, &component)) { - if (component_type == *bagstr) - component = bag_create(component_name); - else - component = script_create(component_name); - - found = false; - } - - if (!component) - return NULL; - - /* Name is at the same position in both struct bag and struct script. */ - if (!found) { - switch (ht_add(relevant_ht, ((struct bag*) component)->name, - component)) { - case HT_NO_MEM: - errno = ENOMEM; - case HT_KEY_PRESENT: - goto free_component; - } - } - - return component; - -free_component: - if (component_type == *bagstr) - bag_free(component); - else - script_free(component); - - return NULL; -} - -int scriptbase_init(struct scriptbase *base, const char *repo_url) -{ - base->repo_url = strdup(repo_url); - if (!base->repo_url) - goto end; - - if (ht_string_init(&base->scripts)) - goto free_url; - - if (ht_string_init(&base->bags)) - goto free_scripts; - - if (ht_string_init(&base->pages)) - goto free_bags; - - return 0; - -free_bags: - ht_destroy(&base->bags); - -free_scripts: - ht_destroy(&base->scripts); - -free_url: - free(base->repo_url); - -end: - errno = ENOMEM; - return -1; -} - -static void destroy_cb(void *key, void *val, void *arg) -{ - char type = *((const char*) arg); - - if (type == 's') - script_free(val); - else if (type == 'b') - bag_free(val); - else - page_free(val); -} - -void scriptbase_destroy(struct scriptbase *base) -{ - char keys[] = {'s', 'b', 'p'}; - - ht_map_destroy(&base->scripts, keys, destroy_cb); - ht_map_destroy(&base->bags, keys + 1, destroy_cb); - ht_map_destroy(&base->pages, keys + 2, destroy_cb); - - free(base->repo_url); -} - -static int catalogue_script(const char *path, cJSON *index_json, - struct scriptbase *base) -{ - const cJSON *name, *sha256, *location; - const char *bad = NULL; - struct script *script; - bool filling_existing = false; - - name = cJSON_GetObjectItemCaseSensitive(index_json, "name"); - sha256 = cJSON_GetObjectItemCaseSensitive(index_json, "sha256"); - location = cJSON_GetObjectItemCaseSensitive(index_json, "location"); - - if (!cJSON_IsString(name) || name->valuestring == NULL) - bad = "name"; - else if (!cJSON_IsString(sha256) || sha256->valuestring == NULL) - bad = "sha256"; - else if (!cJSON_IsString(location) || location->valuestring == NULL) - bad = "location"; - - if (bad) { - fprintf(stderr, "Missing or invalid field \"%s\".\n", bad); - errno = 0; - return -1; - } - - filling_existing = !ht_get(&base->scripts, name->valuestring, - NULL, (void**) &script); - - if (filling_existing) { - if (script->filled) { - fprintf(stderr, "Multiple occurences of script %s.\n", - name->valuestring); - errno = 0; - return -1; - } - } else { - script = script_create(name->valuestring); - if (!script) - return -1; - } - - if (script_fill(script, path, location->valuestring, - sha256->valuestring)) - goto free_script; - - if (!filling_existing && ht_add(&base->scripts, script->name, script)) { - errno = ENOMEM; - goto free_script; - } - - return 0; - -free_script: - script_free(script); - return -1; -} - -static int component_ref_from_json(const cJSON *component_cJSON, - const char **component_type, - const char **component_name) -{ - const cJSON *component_type_cJSON, *component_name_cJSON; - - if (!cJSON_IsArray(component_cJSON)) - return -1; - - component_type_cJSON = component_cJSON->child; - if (!component_type_cJSON) - return -1; - component_name_cJSON = component_type_cJSON->next; - if (!component_name_cJSON || component_name_cJSON->next) - return -1; - - if (!cJSON_IsString(component_type_cJSON) || - !cJSON_IsString(component_name_cJSON)) - return -1; - - if (!strcmp(scriptstr, component_type_cJSON->valuestring)) - *component_type = scriptstr; - else if (!strcmp(bagstr, component_type_cJSON->valuestring)) - *component_type = bagstr; - else - return -1; - - *component_name = component_name_cJSON->valuestring; - - return 0; -} - -static int catalogue_bag(const char *path, cJSON *index_json, - struct scriptbase *base) -{ - const cJSON *name, *components, *component; - const char *component_type, *component_name; - struct bag *bag; - bool filling_existing = false; - - name = cJSON_GetObjectItemCaseSensitive(index_json, "name"); - - if (!cJSON_IsString(name) || name->valuestring == NULL) { - fprintf(stderr, "Missing or invalid field \"name\".\n"); - errno = 0; - return -1; - } - - filling_existing = !ht_get(&base->bags, name->valuestring, - NULL, (void**) &bag); - if (filling_existing) { - if (bag->filled) { - fprintf(stderr, "Multiple occurences of bag %s.\n", - name->valuestring); - errno = 0; - return -1; - } - } else { - bag = bag_create(name->valuestring); - if (!bag) - return -1; - } - - bag->filled = true; - - components = cJSON_GetObjectItemCaseSensitive(index_json, "components"); - if (!components) - return 0; - if (!cJSON_IsArray(components)) - goto invalid_components; - - cJSON_ArrayForEach(component, components) { - if (component_ref_from_json(component, - &component_type, &component_name)) - goto invalid_components; - - /* - * component_type now points to a static buffer and - * component_name to cJSON-owned memory - */ - - if (bag_add(bag, component_name, component_type, base)) - goto free_bag; - } - - if (!filling_existing && ht_add(&base->bags, bag->name, bag)) { - errno = ENOMEM; - goto free_bag; - } - - return 0; - -invalid_components: - fprintf(stderr, "Invalid field \"components\""); - errno = 0; - -free_bag: - bag_free(bag); - return -1; -} - -static int catalogue_page(const char *path, cJSON *index_json, - struct scriptbase *base) -{ - const cJSON *pattern, *payload; - const char *payload_type = "", *payload_name = NULL; - struct page *page; - - pattern = cJSON_GetObjectItemCaseSensitive(index_json, "pattern"); - payload = cJSON_GetObjectItemCaseSensitive(index_json, "payload"); - - if (!cJSON_IsString(pattern) || pattern->valuestring == NULL) { - fprintf(stderr, "Missing or invalid field \"pattern\".\n"); - errno = 0; - return -1; - } - - if (!payload) - goto skip_payload; - - if (component_ref_from_json(payload, &payload_type, &payload_name)) - goto invalid_payload; - -skip_payload: - page = page_create(pattern->valuestring, payload_name, payload_type, - base); - if (!page) - goto free_page; - - switch (ht_add(&base->pages, page->pattern, page)) { - case 0: - return 0; - case HT_NO_MEM: - errno = ENOMEM; - break; - case HT_KEY_PRESENT: - fprintf(stderr, "Multiple occurences of pattern %s.\n", - page->pattern); - errno = 0; - } - -free_page: - page_free(page); - return -1; - -invalid_payload: - fprintf(stderr, "Invalid field \"payload\""); - errno = 0; - - return 0; -} - -int catalogue_component(const char *path, cJSON *index_json, - struct scriptbase *base) -{ - const cJSON *type; - - type = cJSON_GetObjectItemCaseSensitive(index_json, "type"); - if (!cJSON_IsString(type) || type->valuestring == NULL) - goto bad_type; - - if (!strcmp(type->valuestring, scriptstr)) - return catalogue_script(path, index_json, base); - else if (!strcmp(type->valuestring, bagstr)) - return catalogue_bag(path, index_json, base); - else if (!strcmp(type->valuestring, pagestr)) - return catalogue_page(path, index_json, base); - else - goto bad_type; - - return 0; - -bad_type: - fprintf(stderr, "Missing or invalid type."); - - errno = 0; - return -1; -} diff --git a/scriptbase_json_query.c b/scriptbase_json_query.c deleted file mode 100644 index e413b3e..0000000 --- a/scriptbase_json_query.c +++ /dev/null @@ -1,213 +0,0 @@ -/** - * part of Hydrilla - * Routines that perform queries on in-memory scriptbase and return results in - * the form of JSON strings. - * - * Copyright (C) 2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - */ - -#include - -#include "scriptbase.h" - -#define ADD_COMPONENT(object, key, construct, adder) \ - new = cJSON_Create##construct; \ - if (!new) \ - goto free_json; \ - adder(object, key, new) - -#define ADD_TO_OBJECT(object, key, construct) \ - ADD_COMPONENT(object, key, construct, cJSON_AddItemToObject) - -#define ADD_KEY(key, construct) ADD_TO_OBJECT(json, key, construct) - -#define ARRAY_ADDER(object, key, var) cJSON_AddItemToArray(object, var) - -#define ADD_TO_ARRAY(object, construct) \ - ADD_COMPONENT(object, dummy, construct, ARRAY_ADDER) - -char *get_script_json(const char *name, struct scriptbase *base) -{ - const struct script *script; - cJSON *json, *new; - char *printed = NULL; - - script = get_script(name, base); - if (!script || !script->filled) - return NULL; - - json = cJSON_CreateObject(); - if (!json) - goto free_json; - - ADD_KEY("name", String(script->name)); - ADD_KEY("location", String(script->location)); - ADD_KEY("sha256", String(script->sha256)); - - printed = cJSON_Print(json); - -free_json: - cJSON_Delete(json); - - if (!printed) - errno = ENOMEM; - - return printed; -} - -char *get_bag_json(const char *name, struct scriptbase *base) -{ - const struct bag *bag; - cJSON *json, *new, *components, *current_component; - struct component_ref *ref; - char type_prefix[] = "\0"; - char *printed = NULL; - - bag = get_bag(name, base); - if (!bag || !bag->filled) - return NULL; - - json = cJSON_CreateObject(); - if (!json) - goto free_json; - - ADD_KEY("name", String(bag->name)); - ADD_KEY("components", Array()); - components = new; - - for (ref = bag->components; ref; ref = ref->next) { - ADD_TO_ARRAY(components, Array()); - current_component = new; - type_prefix[0] = ref->component_type[0]; - ADD_TO_ARRAY(current_component, String(type_prefix)); - /* name is at the same offset in struct bag and struct script */ - ADD_TO_ARRAY(current_component, - String(ref->component.bag->name)); - } - - printed = cJSON_Print(json); - -free_json: - cJSON_Delete(json); - - if (!printed) - errno = ENOMEM; - - return printed; -} - -cJSON *page_to_cJSON(const struct page *page) -{ - cJSON *json, *new, *payload; - char type_prefix[] = "\0"; - - json = cJSON_CreateObject(); - if (!json) - goto free_json; - - ADD_KEY("pattern", String(page->pattern)); - if (!page->payload.any) - goto skip_payload; - ADD_KEY("payload", Array()); - payload = new; - type_prefix[0] = page->payload_type[0]; - ADD_TO_ARRAY(payload, String(type_prefix)); - /* name is at the same offset in struct bag and struct script */ - ADD_TO_ARRAY(payload, String(page->payload.bag->name)); - -skip_payload: - return json; - -free_json: - cJSON_Delete(json); - - errno = ENOMEM; - - return NULL; -} - -char *get_pattern_json(const char *pattern, struct scriptbase *base) -{ - const struct page *page; - cJSON *json; - char *printed = NULL; - - page = get_pattern(pattern, base); - if (!page) - return NULL; - - json = page_to_cJSON(page); - if (!json) - return NULL; - - printed = cJSON_Print(json); - cJSON_Delete(json); - - if (!printed) - errno = ENOMEM; - - return printed; -} - -struct page_array_building { - cJSON *page_array; - bool OOM_error; -}; - -int lookup_callback(struct page *page, void *data) -{ - struct page_array_building *building = data; - cJSON *page_json; - - page_json = page_to_cJSON(page); - if (!page_json) { - building->OOM_error = true; - return -1; - } - - cJSON_AddItemToArray(building->page_array, page_json); - - return 0; -} - -#include -char *get_page_query_json(const char *url, struct scriptbase *base) -{ - struct page_array_building building = {NULL, false}; - char *printed = NULL; - int result = -2; - - building.page_array = cJSON_CreateArray(); - if (!building.page_array) - goto free_json; - - result = lookup_url(url, base, lookup_callback, &building); - - printf("lookup returned value is %d\n", result); - - if (building.OOM_error) - result = -2; - if (result < 0) - goto free_json; - - printed = cJSON_Print(building.page_array); - if (!printed) - result = -2; - -free_json: - cJSON_Delete(building.page_array); - - switch (result) { - case 0: - break; - case -1: - case -3: - errno = EINVAL; - break; - case -2: - errno = ENOMEM; - } - - return printed; -} diff --git a/scriptbase_query.c b/scriptbase_query.c deleted file mode 100644 index fe9a910..0000000 --- a/scriptbase_query.c +++ /dev/null @@ -1,278 +0,0 @@ -/** - * part of Hydrilla - * Routines for querying in-memory scriptbase, operating on data structures from - * `scripbase.h'. - * - * Copyright (C) 2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - */ - -#include -#include -#include -#include - -#include "hashtable.h" -#include "string_buf.h" - -#include "scriptbase.h" - -const struct script *get_script(const char *name, struct scriptbase *base) -{ - void *val; - - if (ht_get_threadsafe(&base->scripts, name, NULL, &val)) - return NULL; - - return ((struct script*) val)->filled ? val : NULL; -} - -const struct bag *get_bag(const char *name, struct scriptbase *base) -{ - void *val; - - if (ht_get_threadsafe(&base->bags, name, NULL, &val)) - return NULL; - - return ((struct bag*) val)->filled ? val : NULL; -} - -const struct page *get_pattern(const char *pattern, struct scriptbase *base) -{ - void *val = NULL; - - ht_get_threadsafe(&base->pages, pattern, NULL, &val); - - return val; -} - -static const char url_regex[] = - "^" - "([a-zA-Z]{1,20}://)" /* protocol */ - "([^/?#]{1,253})" /* domain */ - "(/[^?#]*)?" /* path */ - "\\\\?[^#]*" /* query */ - "#?.*" /* target */ - "$"; - -static regex_t url_regex_comp; -static bool url_regex_ready; - -int init_url_lookup_regex(void) -{ - int retval; - - retval = regcomp(&url_regex_comp, url_regex, REG_EXTENDED); - - url_regex_ready = !retval; - - return retval; -} - -void destroy_url_lookup_regex(void) -{ - if (!url_regex_ready) { - fprintf(stderr, "Attempt to destroy uninitialized regex in " __FILE__ "\n"); - return; - } - - regfree(&url_regex_comp); -} - -#define URL_REGEX_NMATCH 4 - -#define PROTOCOL_MATCH 1 -#define DOMAIN_MATCH 2 -#define PATH_MATCH 3 - -static int lookup_url_path(const char *path_begin, const char *path_end, - struct stringbuf *buf, struct scriptbase *base, - int (*callback)(struct page*, void*), void *data) -{ - const char *segment_end = path_begin; - int segments_dropped = 0; - int initial_len = buf->buf_filled; - size_t len_path, previous_segment; - void *val; - bool trailing_dash = path_end != path_begin && path_end[-1] == '/'; - char asterisks[] = "/***"; - int trailing_asterisks = 0, i; - int result; - - while (true) { - do { - if (path_begin >= path_end) - goto after_path_normalization; - } while (*(path_begin++) == '/'); - path_begin -= 2; - - segment_end = path_begin + 1; - while (*segment_end != '/' && ++segment_end < path_end); - - if (sb_bytes(buf, path_begin, segment_end - path_begin)) - return -2; - - path_begin = segment_end; - } - -after_path_normalization: -#define TRY_WILDCARD(condition, wildcard) \ - if (condition) { \ - stringbuf_truncate(buf, len_path); \ - if (sb_string(buf, wildcard)) \ - return -2; \ - \ - result = ht_get_threadsafe(&base->pages, buf->buf, \ - NULL, &val); \ - if (!result && callback(val, data)) \ - return 1; \ - } - - while (true) { - len_path = buf->buf_filled; - previous_segment = len_path; - while (previous_segment > initial_len && - buf->buf[--previous_segment] != '/'); - - if (!trailing_asterisks) {/* only on first iteration */ - trailing_asterisks = -1; - - for (i = 3; i > 0; i--) { - asterisks[i + 1] = '\0'; - - if (strncmp(buf->buf + previous_segment, - asterisks, i + 1)) - continue; - - trailing_asterisks = i; - - if (i != 3) - break; - - if (buf->buf[previous_segment + i + 1] == '*') - trailing_asterisks = -1; - - break; - } - } - - TRY_WILDCARD(segments_dropped == 0, ""); - TRY_WILDCARD(segments_dropped == 0 && trailing_dash, "/"); - TRY_WILDCARD(segments_dropped == 1 && trailing_asterisks != 1, - "/*"); - TRY_WILDCARD(segments_dropped > 1, "/**"); - TRY_WILDCARD(segments_dropped > 0 && - (segments_dropped > 1 || trailing_asterisks != 3), - "/***"); - - stringbuf_truncate(buf, previous_segment); - - if (previous_segment == len_path) - return 0; - - /* - * We only ever care if this count is 0, 1 or > 1, - * hence size_t is not necessary. - */ - if (segments_dropped < 2) - segments_dropped++; - } - -#undef TRY_WILDCARD -} - -static int lookup_url_domain(const char *domain_begin, const char *domain_end, - const char *path_begin, const char *path_end, - struct stringbuf *buf, struct scriptbase *base, - int (*callback)(struct page*, void*), void *data) -{ - const char *next_label = domain_begin; - int labels_dropped = 0; - int initial_len = buf->buf_filled; - int result; - -#define TRY_WILDCARD(condition, wildcard) \ - if (condition) { \ - stringbuf_truncate(buf, initial_len); \ - if (sb_string(buf, wildcard) || \ - sb_bytes(buf, domain_begin, domain_end - domain_begin)) \ - return -2; \ - \ - result = lookup_url_path(path_begin, path_end, \ - buf, base, callback, data); \ - if (result) \ - return result; \ - } - - while (true) { - domain_begin = next_label; - - while (*(next_label++) != '.') { - if (next_label >= domain_end) - return 0; - } - - TRY_WILDCARD(labels_dropped == 0, ""); - TRY_WILDCARD(labels_dropped == 1, "*."); - TRY_WILDCARD(labels_dropped > 0, "**."); - TRY_WILDCARD(true, "***."); - - labels_dropped++; - } - -#undef TRY_WILDCARD -} - -static int lookup_url_proto(const char *proto_begin, const char *proto_end, - const char *domain_begin, const char *domain_end, - const char *path_begin, const char *path_end, - struct stringbuf *buf, struct scriptbase *base, - int (*callback)(struct page*, void*), void *data) -{ - if (sb_bytes(buf, proto_begin, proto_end - proto_begin)) - return -2; - - return lookup_url_domain(domain_begin, domain_end, path_begin, path_end, - buf, base, callback, data); -} - -int lookup_url(const char *url, struct scriptbase *base, - int (*callback)(struct page*, void*), void *data) -{ - regmatch_t reg_matched[URL_REGEX_NMATCH]; - struct stringbuf buf; - const char *path_begin, *path_end; - int retval; - - if (!url_regex_ready) { - fprintf(stderr, "Regex not initialized in " __FILE__ "\n"); - return -3; - } - - printf("matching: %s\n", url); - - if (regexec(&url_regex_comp, url, - URL_REGEX_NMATCH, reg_matched, 0) || - reg_matched[DOMAIN_MATCH].rm_so == -1) - return -1; - - stringbuf_init(&buf); - - path_begin = url + reg_matched[PATH_MATCH].rm_so; - path_end = url + reg_matched[PATH_MATCH].rm_eo; - if (path_begin == url - 1) { - path_begin = NULL; - path_end = NULL; - } - - retval = lookup_url_proto(url + reg_matched[PROTOCOL_MATCH].rm_so, - url + reg_matched[PROTOCOL_MATCH].rm_eo, - url + reg_matched[DOMAIN_MATCH].rm_so, - url + reg_matched[DOMAIN_MATCH].rm_eo, - path_begin, path_end, - &buf, base, callback, data); - - stringbuf_destroy(&buf); - - return retval; -} diff --git a/serve.c b/serve.c deleted file mode 100644 index 8ef0ce3..0000000 --- a/serve.c +++ /dev/null @@ -1,215 +0,0 @@ -/** - * part of Hydrilla - * Serving data queries over HTTP using libmicrohttpd. - * - * Copyright (C) 2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - * - * This file is based on Christian Grothoff's public comain code from - * `doc/examples/logging.c' in libmicrohttpd source tree. - */ - -#define _POSIX_C_SOURCE 199506L /* sigwait() */ - -#include -#include -#include -#include -#include - -#include -#include -#include - -#include - -#include "scriptbase.h" - -#define PORT 10111 - -#define ARRLEN(array) (sizeof(array) / sizeof(*array)) - -static struct MHD_Response *default_response, *error_response, - *not_found_response; - -static struct { - struct MHD_Response **response; - const char *const text; -} static_responses[] = { - {&default_response, "Nothing to see here"}, - {&error_response, "Error occured"}, - {¬_found_response, "Not found"} -}; - -static int add_CORS_header(struct MHD_Response *response) -{ - return -1 * (MHD_add_response_header(response, - "Access-Control-Allow-Origin", - "*") == MHD_NO); -} - -typedef char *(*request_handler_t)(const char *queried, - struct scriptbase *base); - -static struct { - const char *path; - request_handler_t request_handler; -} resources[] = { - {"/script", get_script_json}, - {"/bag", get_bag_json}, - {"/pattern", get_pattern_json}, - {"/query", get_page_query_json} -}; - -struct request_handling { - struct scriptbase *base; - request_handler_t handler; - char *json_response; - int error_number; -}; - -static int handle_query_argument(void *cls, enum MHD_ValueKind kind, - const char *key, const char *value) -{ - struct request_handling *handling = cls; - - if (strcmp(key, "n")) { - fprintf(stderr, "Unknown argument: \"%s\" = \"%s\"\n", - key, value); - return MHD_YES; - } - - errno = 0; - - handling->json_response = handling->handler(value, handling->base); - - handling->error_number = errno; - - return MHD_NO; -} - -static int answer_with(struct MHD_Connection *connection, - request_handler_t handler, struct scriptbase *base) -{ - struct request_handling handling = {base, handler, NULL, EINVAL}; - struct MHD_Response *response; - int retval; - - MHD_get_connection_values(connection, MHD_GET_ARGUMENT_KIND, - handle_query_argument, &handling); - - if (!handling.json_response) { - if (handling.error_number) - goto send_error; - goto send_not_found; - } - - response = MHD_create_response_from_buffer - (strlen(handling.json_response), handling.json_response, - MHD_RESPMEM_MUST_FREE); - if (!response || add_CORS_header(response)) - goto send_error; - - retval = MHD_queue_response(connection, MHD_HTTP_OK, response); - MHD_destroy_response(response); - - return retval; - -send_not_found: - return MHD_queue_response(connection, MHD_HTTP_NOT_FOUND, - not_found_response); - -send_error: - free(handling.json_response); - return MHD_queue_response(connection, MHD_HTTP_INTERNAL_SERVER_ERROR, - error_response); -} - -static int answer(void *data, - struct MHD_Connection *connection, - const char *url, - const char *method, - const char *version, - const char *upload_data, - size_t *upload_data_size, - void **ptr) -{ - static int aptr; - int i; - struct scriptbase *base = data; - - printf("New %s request for %s using version %s\n", method, url, version); - - if (strcmp(method, "GET")) - return MHD_NO; - - if (&aptr != *ptr) { - /* do never respond on first call */ - *ptr = &aptr; - return MHD_YES; - } - *ptr = NULL; /* reset when done */ - - for (i = 0; i < ARRLEN(resources); i++) { - if (strcmp(resources[i].path, url)) - continue; - - return answer_with(connection, resources[i].request_handler, - base); - } - - return MHD_queue_response(connection, MHD_HTTP_OK, default_response); -} - -int getchar(void); - -int serve_scriptbase(struct scriptbase *base, bool wait_for_sigterm) -{ - int i; - struct MHD_Daemon *daemon; - sigset_t sigterm_set; - int signal_number; /* only written, not read */ - int retval = -1; - - if (init_url_lookup_regex()) - return -1; - - for (i = 0; i < ARRLEN(static_responses); i++) { - *static_responses[i].response = MHD_create_response_from_buffer - (strlen(static_responses[i].text), - (char*) static_responses[i].text, - MHD_RESPMEM_PERSISTENT); - - if (!*static_responses[i].response || - add_CORS_header(*static_responses[i].response)) - goto free_resources; - } - - daemon = MHD_start_daemon(MHD_USE_INTERNAL_POLLING_THREAD, PORT, NULL, - NULL, &answer, (void*) base, MHD_OPTION_END); - if (!daemon) - goto free_resources; - - if (wait_for_sigterm) { - sigemptyset(&sigterm_set); - sigaddset(&sigterm_set, SIGTERM); - sigwait(&sigterm_set, &signal_number); - } else { - getchar(); - } - - MHD_stop_daemon(daemon); - - retval = 0; - -free_resources: - for (i = 0; i < ARRLEN(static_responses); i++) { - if (*static_responses[i].response) - MHD_destroy_response(*static_responses[i].response); - *static_responses[i].response = NULL; - } - - destroy_url_lookup_regex(); - - return retval; -} diff --git a/src/Makefile.am b/src/Makefile.am new file mode 100644 index 0000000..9d3da43 --- /dev/null +++ b/src/Makefile.am @@ -0,0 +1,10 @@ +bin_PROGRAMS = hydrilla +hydrilla_SOURCES = \ + hashtable.c \ + main.c \ + scriptbase_build.c \ + scriptbase_json_query.c \ + scriptbase_query.c \ + serve.c \ + string_buf.c +hydrilla_LDFLAGS = -lmicrohttpd -lcjson diff --git a/src/Makefile.in b/src/Makefile.in new file mode 100644 index 0000000..9837951 --- /dev/null +++ b/src/Makefile.in @@ -0,0 +1,604 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; 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They mean more or less the same. + * + * Functions starting with ht_ are part of the API. Internal functions + * are declared static. I also made some of them inline (either + * because they were extremely short or only called from 1 place). + * + * Hashtable size is always a power of 2. + * + * When the hashtable is ¾ full, a new, 2x bigger table is allocated + * and whenever one of 4 basic operations (adding, removing, setting, + * getting) occurs, 4 slots are being rehashed from old table into 8 + * slots in new table. Similarly, when hashtable is ¼ full, a new, + * 2x smaller table is allocated and each of subsequent operations + * rehashes 8 entries from old table into 4 in new table. + * This mechanism has been made lazier: getting and removing don't + * trigger growing of ht even if it's 3/4 full. Similarly, getting, + * setting and adding don't trigger shrinking. + * Once resizing is triggered, however, any of the operations will + * contribute to rehashing. Even if, for example, the operation is + * ADD and the table is being shrinked. + * This means, that if we have a hashtable of size n which is ¾ full + * and growing is triggered, then each subsequent call to + * ht_{add,rem,get,set}() rehashes some entries and, depending on + * how frequently and how successfully each of these 4 funcs was + * called, at the end of resizing we get a size 2n hashtable which is + * between ¼ and ½ full. Similarly, if shrinking of a ¼ full + * hashtable of size n is triggered, then after some operations we + * get a size ½n hashtable, that is somewhere between ¼ and ¾ full. + * One can see now, that we always keep the hashtable between ¼ and ¾ + * full (with the exception of a minimal size one, that can be empty). + */ + +#include "hashtable.h" + +#include +#include +#include +#include + +#ifdef _USE_INLINE +#define INLINE inline +#else +#define INLINE +#endif + +/* + * We won't shrink hashtable below this size. Newly created one will + * be this big. + */ +#define MIN_SIZE 4 + +/* Special value of ht->rehashing_position. */ +#define NOT_REHASHING ((ssize_t) -1) + +/* + * Those are possible return values of do_resizing_related_stuff() + * and rehash_some_entries() (which only returns the first 2). + */ +#define REHASHING_IN_PROGRESS 0 +#define REHASHING_NOT_IN_PROGRESS 1 +#define REHASHING_NO_MEM 2 + +/* Struct used to store a pair. */ +struct ht_node +{ + const void *key; + const void *val; + struct ht_node *next; +}; + +enum op + { + GET, + GET_THREADSAFE, + ADD, + SET, + REM, + }; + +int ht_init(hashtable_t *ht, + size_t (*hash)(const void *key), + int (*cmp)(const void *key1, const void *key2)) +{ + if (!(ht->tab = calloc(MIN_SIZE, sizeof(struct ht_node**)))) + return HT_NO_MEM; + + ht->tab_size = MIN_SIZE; + ht->rehashing_position = NOT_REHASHING; + ht->entries = 0; + ht->hashfunc = hash; + ht->cmpfunc = cmp; + + return HT_OK; +} + +/* First come some utilities :) */ + +static INLINE size_t min(size_t n1, size_t n2) +{ + return n1 < n2 ? n1 : n2; +} + +static INLINE size_t hash2(size_t n) +{ + /* I found this "hash improver" on the internet. */ + n ^= (n >> 20) ^ (n >> 12); + return n ^ (n >> 7) ^ (n >> 4); +} + +/* Below are 2 list-handling utility functions. */ +static INLINE struct ht_node *join_lists(struct ht_node *l1, + struct ht_node *l2) +{ + if (!l1) return l2; + if (!l2) return l1; + + struct ht_node *l1_last; + + for (l1_last = l1; l1_last->next; l1_last = l1_last->next); + + /* Append l2 to the end of l1. */ + l1_last->next = l2; + + /* For convenience return the first element of the resulting list. */ + return l1; +} + + +static INLINE void push(struct ht_node *node, struct ht_node **list) +{ + node->next = *list; + *list = node; +} + +/* + * The following 2 rehash_* functions are helpers of rehash_some_entries(). + * This func rehashes 1 chain of entries in tab[] into 2 chains in newtab[]. + */ +static INLINE void rehash_position_growing(hashtable_t *ht) +{ + /* There are 2 possible new positions of an entry in a 2x bigger ht. */ + struct ht_node *list0 = NULL, *list1 = NULL; + + size_t old_position = ht->rehashing_position, + new_position0 = old_position, + new_position1 = old_position | ht->tab_size; + + struct ht_node *pair = ht->tab[old_position], *next_pair; + + while (pair) + { + next_pair = pair->next; + + size_t new_position = hash2(ht->hashfunc(pair->key)) + & (ht->new_size - 1); + + push(pair, new_position == new_position1 ? &list1 : &list0); + + pair = next_pair; + } + + ht->newtab[new_position0] = list0; + ht->newtab[new_position1] = list1; + + ht->rehashing_position++; +} + +/* This func rehashes 2 chains of entries in tab[] into 1 chain in newtab[]. */ +static INLINE void rehash_2positions_shrinking(hashtable_t *ht) +{ + size_t new_position = ht->rehashing_position, + old_position0 = new_position, + old_position1 = new_position | ht->new_size; + + ht->newtab[new_position] = join_lists(ht->tab[old_position0], + ht->tab[old_position1]); + + ht->rehashing_position++; +} + +/* + * Rehashes 4(8) positions from tab to newtab. If those were the last + * enetries to rehash, the function takes care of everything + * (like deallocating old tab) and returns REHASHING_NOT_IN_PROGRESS. + * Otherwise, returns REHASHING_IN_PROGRESS. + * Caller must make sure rehashing was started b4 calling this func. + */ +static int rehash_some_entries(hashtable_t *ht) +{ + int rehashes_left = 4; + + if (ht->new_size > ht->tab_size) /* growing ht */ + { + while(rehashes_left--) rehash_position_growing(ht); + if (ht->rehashing_position != ht->tab_size) + return REHASHING_IN_PROGRESS; + } + else /* shrinking ht */ + { + while(rehashes_left--) rehash_2positions_shrinking(ht); + if (ht->rehashing_position != ht->new_size) + return REHASHING_IN_PROGRESS; + } + + /* rehashing finishes */ + ht->rehashing_position = NOT_REHASHING; + ht->tab_size = ht->new_size; + free(ht->tab); + ht->tab = ht->newtab; + + return REHASHING_NOT_IN_PROGRESS; +} + +static INLINE bool resizing_taking_place(hashtable_t *ht) +{ + return !(ht->rehashing_position == NOT_REHASHING); +} + +void ht_finish_resizing(hashtable_t *ht) +{ + if (resizing_taking_place(ht)) + while (rehash_some_entries(ht) == REHASHING_IN_PROGRESS); +} + +static INLINE bool needs_growing(hashtable_t *ht) +{ + return ht->entries >= 3 * ht->tab_size / 4; +} + +static INLINE bool needs_shrinking(hashtable_t *ht) +{ + return ht->tab_size > MIN_SIZE + && ht->entries <= ht->tab_size / 4; +} +/* + * Each of hashtable operations (add, set, rem, get) should also + * attempt to do part of resizing. This way resizing operation + * which is O(n) is distributed among many hashtable accesses + * each of them still being O(1). Without this the the amortized + * complexity of ht accesses would still be O(1), but a single access + * would sometimes be O(n). + * Other function that adds, sets, gets or removes sth from ht uses + * this one to do this "part of resizing" mentioned above. + * This func returns REHASHING_NO_MEM on failed malloc (won't happen + * for GET or REM operation) and REHASHING_[NOT_]IN_PROGRESS otherwise. + */ +static INLINE int +do_resizing_related_stuff(hashtable_t *ht, const void *key, enum op op) +{ + bool resizing = resizing_taking_place(ht); + + if (!resizing) + { + size_t new_size; + + switch (op) + { + case GET: + goto dont_start_resizing; + case ADD: + case SET: + if (needs_growing(ht)) + new_size = ht->tab_size * 2; + else + goto dont_start_resizing; + break; + default: /* case REM */ + if (needs_shrinking(ht)) + new_size = ht->tab_size / 2; + else + goto dont_start_resizing; + } + + struct ht_node **newtab; + if (!(newtab = malloc(new_size * sizeof(struct ht_node*)))) + return op == REM ? REHASHING_NOT_IN_PROGRESS : REHASHING_NO_MEM; + + ht->newtab = newtab; + ht->new_size = new_size; + ht->rehashing_position = 0; + + resizing = true; + } + + dont_start_resizing: + + return resizing ? + rehash_some_entries(ht) : REHASHING_NOT_IN_PROGRESS; +} + +/* + * This is a chaining hashtable, so each element in the array (table) + * is actually a list of entries. All operations (adding, removing, + * etc.) need to find the right list of entries (here called "bucket") + * for a given key first, so it makes sense to do it in a separate + * function. The bucket may be in tab or newtab if resizing is taking + * place. Being informed by the caller if resizing is in progress, + * this func does not need to check for it by itself. + */ +static INLINE struct ht_node **find_bucket(hashtable_t *ht, const void *key, + bool resizing_in_progress) +{ + size_t hash = hash2(ht->hashfunc(key)), + destination_tab_size, position; + + struct ht_node **destination_tab; + + if (resizing_in_progress) + /* + * Here we must check whether our key's bucket is still + * in ht->tab or already rehashed to ht->newtab. + */ + { + size_t smaller_tab_size = min(ht->tab_size, ht->new_size), + smaller_tab_position = hash & (smaller_tab_size - 1); + + if (smaller_tab_position < ht->rehashing_position) + { + destination_tab = ht->newtab; + destination_tab_size = ht->new_size; + } + else + { + destination_tab = ht->tab; + destination_tab_size = ht->tab_size; + } + } + else + /* In this case we know, we're working on ht->tab and not newtab. */ + { + destination_tab = ht->tab; + destination_tab_size = ht->tab_size; + } + + position = hash & (destination_tab_size - 1); + return &destination_tab[position]; +} + +/* + * Operations of adding, removing, etc. all work on list of entries + * (bucket) to wchich key hashes and they have some common logic, so + * it made sense to make a single function, that does the right + * operation based on an enum passed to it. + */ +static INLINE int +perform_operation_on_bucket(hashtable_t *ht, struct ht_node **bucket, + const void *key, const void *val, + void **keyptr, void **valptr, + enum op op) +{ + struct ht_node **pairptr, *pair; + + for (pairptr = bucket, pair = *pairptr; + pair; + pairptr = &pair->next, pair = pair->next) + + if (!ht->cmpfunc(key, pair->key)) + { + if (op == ADD) + return HT_KEY_PRESENT; + + if (keyptr) *keyptr = (void*) pair->key; + if (valptr) *valptr = (void*) pair->val; + + switch (op) + { + case GET: + case GET_THREADSAFE: + { + return HT_OK; + } + case SET: + { + pair->key = key; + pair->val = val; + return HT_OK; + } + default: /* case REM */ + { + *pairptr = pair->next; + free(pair); + ht->entries--; + return HT_OK; + } + } + } + + if (op == GET || op == GET_THREADSAFE || op == REM) + return HT_KEY_ABSENT; + + /* op == ADD || op == SET */ + + struct ht_node *new_pair = malloc(sizeof(struct ht_node)); + if (!new_pair) + return HT_NO_MEM; + + *new_pair = (struct ht_node) {.key = key, .val = val}; + push(new_pair, bucket); + ht->entries++; + + return HT_OK; +} + +/* Generic function for performing of adding, removing, setting and getting. */ +static int perform_operation(hashtable_t *ht, const void *key, const void *val, + void **keyptr, void **valptr, enum op op) +{ + bool resizing_in_progress; + + if (op == GET_THREADSAFE) { + resizing_in_progress = resizing_taking_place(ht); + goto skip_resizing; + } + + switch (do_resizing_related_stuff(ht, key, op)) + { + case REHASHING_IN_PROGRESS: + resizing_in_progress = true; + break; + case REHASHING_NOT_IN_PROGRESS: + resizing_in_progress = false; + break; + default: /* case REHASHING_NO_MEM */ + return HT_NO_MEM; + } + + struct ht_node **bucket; + + skip_resizing: + bucket = find_bucket(ht, key, resizing_in_progress); + + return perform_operation_on_bucket(ht, bucket, key, val, + keyptr, valptr, op); +} + +/* The 5 functions below are the main part of the API. */ +int ht_get(hashtable_t *ht, const void *key, + void **storedkey, void **val) +{ + return perform_operation(ht, key, NULL, storedkey, val, GET); +} + +int ht_get_threadsafe(hashtable_t *ht, const void *key, + void **storedkey, void **val) +{ + return perform_operation(ht, key, NULL, storedkey, val, + GET_THREADSAFE); +} + +int ht_add(hashtable_t *ht, const void *key, const void *val) +{ + return perform_operation(ht, key, val, NULL, NULL, ADD); +} + +int ht_set(hashtable_t *ht, const void *key, const void *val, + void **oldkey, void **oldval) +{ + return perform_operation(ht, key, val, oldkey, oldval, SET); +} + +int ht_rem(hashtable_t *ht, const void *key, + void **storedkey, void **val) +{ + return perform_operation(ht, key, NULL, storedkey, val, REM); +} + +/* + * As mentioned in hashtable.h, this func does not deallocate keys + * nor vals. One could use ht_map_destroy() if that is needed. + */ +void ht_destroy(hashtable_t *ht) +{ + ssize_t position; + + if (!ht->entries) + goto free_tab; + + ht_finish_resizing(ht); + + struct ht_node **tab = ht->tab; + + for (position = ht->tab_size - 1; position >= 0; position--) + { + struct ht_node *pair = tab[position], *nextpair; + + while (pair) + { + nextpair = pair->next; + free(pair); + pair = nextpair; + } + } + + free_tab: + free(ht->tab); +} + +void ht_map(hashtable_t *ht, void *arg, + void (*mapfunc)(const void *key, void *val, void *arg)) +{ + ssize_t position; + + if (!ht->entries) + return; + + ht_finish_resizing(ht); + + struct ht_node **tab = ht->tab, *pair; + + for (position = ht->tab_size - 1; position >= 0; position--) + { + for (pair = tab[position]; pair; pair = pair->next) + mapfunc(pair->key, (void*) pair->val, arg); + } +} + +void ht_map_destroy(hashtable_t *ht, void *arg, + void (*mapfunc)(void *key, void *val, void *arg)) +{ + /* + * If mapfunc() deallocates keys, the following 2 lines make + * assumption on ht_destroy(), that it doesn't call ht->hashfunc() + * or ht->cmpfunc() on keys. + */ + ht_map(ht, arg, (void (*)(const void*, void*, void*)) mapfunc); + ht_destroy(ht); +} + +/* + * These 2 functions are for easy making of hashtable with strings as + * keys. Note that this hash is *not* secure against DoS attacks. + */ +size_t ht_string_hash(const char *key) +{ + size_t i = 0, hash = (size_t) 0xa1bad2dead3beef4; + + do + { + char shift = ((unsigned char) key[i]) % sizeof(size_t); + hash += ((hash >> shift) | (hash << (sizeof(size_t) - shift))) + ^ key[i]; + } + while (key[i++]); + + return hash; +} + +int ht_string_init(hashtable_t *ht) +{ + return ht_init(ht, (size_t (*)(const void*)) &ht_string_hash, + (int (*)(const void*, const void*)) &strcmp); +} diff --git a/src/hashtable.h b/src/hashtable.h new file mode 100644 index 0000000..7d85b33 --- /dev/null +++ b/src/hashtable.h @@ -0,0 +1,143 @@ +/** + * C hashtable implementation + * + * Copyright (C) 2018-2021 Wojtek Kosior + * Redistribution terms are gathered in the `copyright' file. + */ + +/* + * https://git.koszko.org/C-hashtable + * Note that this version is likely to be more up-to-date than the one linked. + * + * This is a separate chaining hashtable for general use. It's not + * universal: it uses malloc() and free(), so it requires a standard + * library to function and it's for single-threaded use only. It does, + * however, have one advantage: it rehashes automatically, both when + * it grows in size and when it shrinks, while retaining O(1) access + * time. A normal hashtable with rehashing would have amortized O(1) + * access time, but there would be single access with O(n) time + * complexity for each rehashing. In this hashtable, rehashing is done + * in parts. For example, a ht_add(), aside from adding an entry, + * might also rehash 4 other entries from old table to the new one and + * leave the rest unrehashed. + * Of course, it is assumed that a good hash function is provided + * by the programmer. If not, accesses may still degenerate to O(n). + * Hence, this hashtable is not secure against DoS attacks. + */ + +#ifndef HASHTABLE_H +#define HASHTABLE_H + +#include /* for ssize_t */ + +/* These are possible return values of some ht_ functions (see below). */ +#define HT_OK 0 +#define HT_NO_MEM -1 +#define HT_KEY_PRESENT -2 +#define HT_KEY_ABSENT -3 + +typedef struct +{ + /* All members are considered implementation details, except for "entries", + * which can be read, but should not be modified by external code. + */ + size_t entries; + + /* + * tab[] is where entries (chains of entries) are stored. + * When rehashing, newtab[] is also used. + */ + struct ht_node **tab, **newtab; + + /* sizes of tab[] and newtab[], obviously */ + size_t tab_size, new_size; + + size_t (*hashfunc)(const void* key); + int (*cmpfunc)(const void* key1, const void *key2); + + /* + * When no rehashing is taking place, rehashing_position is -1 (#define'd as + * NOT_REHASHING in hashtable.c). At any other time, rehashing_position is the + * lowest not yet rehashed position in the smaller table. + */ + ssize_t rehashing_position; +} hashtable_t; + +/* + * All int functions return 0 (#define'd as HT_OK) on success and in + * case of failure they return error codes, as described below. + */ + +/* May fail with HT_NO_MEM. */ +int ht_init(hashtable_t *ht, + size_t (*hash)(const void* key), + int (*cmp)(const void* key1, const void *key2)); + +/* May fail with HT_NO_MEM and HT_KEY_PRESENT. */ +int ht_add(hashtable_t *ht, const void *key, const void *val); + +/* + * May fail with HT_NO_MEM. If key was not yet present in hashtable, *oldkey and + * *oldval are not modified. Otherwise, just-replaced pair is stored in them. + */ +int ht_set(hashtable_t *ht, const void *key, const void *val, + void **oldkey, void **oldval); + +/* + * If present, the looked for pair is stored in *storedkey and *val. Otherwise, + * they're not modified and HT_KEY_ABSENT is returned. storedkey and/or val can + * be NULL. + */ +int ht_get(hashtable_t *ht, const void *key, void **storedkey, void **val); + +/* + * Works like ht_get() but is thread-safe with regard to other calls to + * ht_get_threadsafe() on the same hashtable. Note that the hash and compare + * functions supplied to the hashtable also have to be thread-safe (that + * requirement is of course met for those used by ht_string_init()). + */ +int ht_get_threadsafe(hashtable_t *ht, const void *key, + void **storedkey, void **val); + +/* Works like the above but also removes the pair from ht if found. */ +int ht_rem(hashtable_t *ht, const void *key, void **storedkey, void **val); + +/* + * De-initializes the hashtable freeing all its structures. The programmer is + * responsible for freeing keys and values if they were allocated from the heap + * (see ht_map_destroy() below). + */ +void ht_destroy(hashtable_t *ht); + +/* Calls ht_finish_resizing(), then maps through ht. */ +void ht_map(hashtable_t *ht, void *arg, + void (*mapfunc)(const void *key, void *val, void *arg)); + +/* + * It might be tempting to use ht_map() to free() all keys and values stored in + * ht and then call ht_destroy(). If you think about it, ht_map() would leave + * hashtable in a broken state - with keys being deallocated. Depending on the + * implementation, ht_destroy() could cope with that, but we'd rather not + * guarrantee anything, so here's another function just for that - mapping + * through entries and destroying the hashtable immediately after, explicitly + * allowing the mapping function to deallocate keys. + */ +void ht_map_destroy(hashtable_t *ht, void *arg, + void (*mapfunc)(void *key, void *val, void *arg)); + +/* + * If hashtable is in the process of being rehashed, this function + * processes it to the end. Otherwise - it does nothing. + */ +void ht_finish_resizing(hashtable_t *ht); + +/* Included, since strings are commonly used as keys. */ +size_t ht_string_hash(const char *key); + +/* + * May fail with HT_NO_MEM. Initializes ht for use with string keys + * (using ht_string_hash() and strcmp()). + */ +int ht_string_init(hashtable_t *ht); + +#endif /* HASHTABLE_H */ diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..4902585 --- /dev/null +++ b/src/main.c @@ -0,0 +1,183 @@ +/** + * part of Hydrilla + * Program entry point. + * + * Copyright (C) 2021 Wojtek Kosior + * Redistribution terms are gathered in the `copyright' file. + */ + +#define _POSIX_C_SOURCE 200809L /* S_IFMT, S_IFDIR */ + +#include +#include +#include +#include +#include +#include + +#include + +#include "string_buf.h" +#include "hashtable.h" + +#include "scriptbase.h" + +#define PRESERVE_ERRNO(call) \ + do { \ + int VERY_UNLIKELY_TO_COLLIDE_NAME_$$$$$$$$##__LINE__ = errno; \ + call; \ + errno = VERY_UNLIKELY_TO_COLLIDE_NAME_$$$$$$$$##__LINE__; \ + } while (0) + +static const char default_search_path[] = "/var/lib/hydrilla/content/"; + +static int process_scriptbase_subdir(struct scriptbase *base, + struct dirent *subdir, + struct stringbuf *path_buf, + struct stringbuf *json_buf) +{ + struct stat statbuf; + cJSON *index_json; + int retval = -1; + size_t initial_len = path_buf->buf_filled, len_dirname; + + if (sb_string(path_buf, subdir->d_name)) + return -1; + + len_dirname = path_buf->buf_filled; + + if (stat(path_buf->buf, &statbuf)) + return -1; + + if ((statbuf.st_mode & S_IFMT) != S_IFDIR) + return 0; + + if (sb_string(path_buf, "/index.json")) + return -1; + + printf("Reading %s\n", path_buf->buf); + + stringbuf_truncate(json_buf, 0); + if (sb_filepath(json_buf, path_buf->buf)) + return -1; + + index_json = cJSON_Parse(json_buf->buf); + if (!index_json) { + fprintf(stderr, "Failed to parse json.\n"); + return -1; + } + + stringbuf_truncate(path_buf, len_dirname); + + retval = catalogue_component(path_buf->buf + initial_len, + index_json, base); + + PRESERVE_ERRNO(cJSON_Delete(index_json)); + + return retval; +} + +static int prepare_scriptbase_from_dir(const char *dir_path, + struct scriptbase *base) +{ + DIR *maindir = NULL; + struct dirent *subdir; + struct stringbuf path_buf; + struct stringbuf json_buf; + size_t base_path_len; + int retval = -1; + + printf("Searching %s\n", dir_path); + stringbuf_init(&path_buf); + stringbuf_init(&json_buf); + + if (scriptbase_init(base, "https://hydrilla.koszko.org/resources")) + goto end; + + maindir = opendir(dir_path); + if (!maindir) + goto end; + + if (sb_sprintf(&path_buf, "%s/", dir_path)) + goto end; + + base_path_len = path_buf.buf_filled; + + while (true) { + errno = 0; + subdir = readdir(maindir); + if (!subdir) { + if (!errno) + retval = 0; + break; + } + + if (!strcmp(subdir->d_name, "..") || + !strcmp(subdir->d_name, ".")) + continue; + + stringbuf_truncate(&path_buf, base_path_len); + + errno = 0; + if (process_scriptbase_subdir(base, subdir, + &path_buf, &json_buf)) { + fprintf(stderr, "Error processing subdirectory %s%s", + subdir->d_name, errno ? ": " : ".\n"); + if (errno) + perror(NULL); + } + } + +end: + if (errno) + perror(NULL); + stringbuf_destroy(&path_buf); + stringbuf_destroy(&json_buf); + if (maindir) + closedir(maindir); + if (retval) + scriptbase_destroy(base); + + printf("Search in %s %s.\n", dir_path, retval ? "failed" : "finished"); + + return retval; +} + +static void print_component_name(const void *key, void *val, void *arg) +{ + char type = (char) (size_t) arg; + bool unfilled; + + unfilled = + (type == 's' && !((struct script*) val)->filled) || + (type == 'b' && !((struct bag*) val)->filled); + + printf("%s%s\n", (const char*) key, + unfilled ? " (referenced only)" : ""); +} + +int serve_scriptbase(struct scriptbase *base, bool); + +int main(int argc, char *argv[]) +{ + struct scriptbase base; + const char *search_path = default_search_path; + + if (argc > 1) + search_path = argv[1]; + + if (prepare_scriptbase_from_dir(search_path, &base)) + return -1; + puts("## LOADED SCRIPTS:"); + ht_map(&base.scripts, (void*) 's', print_component_name); + puts("## LOADED BAGS:"); + ht_map(&base.bags, (void*) 'b', print_component_name); + puts("## LOADED PAGES:"); + ht_map(&base.pages, (void*) 'p', print_component_name); + + if (serve_scriptbase(&base, !!getenv("HYDRILLA_WAIT_SIGTERM"))) + fprintf(stderr, "Error serving scriptbase.\n"); + + scriptbase_destroy(&base); + return 0; +} diff --git a/src/scriptbase.h b/src/scriptbase.h new file mode 100644 index 0000000..f7694f7 --- /dev/null +++ b/src/scriptbase.h @@ -0,0 +1,77 @@ +/** + * part of Hydrilla + * Scriptbase struct and functions operating on it. + * + * Copyright (C) 2021 Wojtek Kosior + * Redistribution terms are gathered in the `copyright' file. + */ + +#ifndef SCRIPTBASE_H +#define SCRIPTBASE_H + +#include + +#include + +#include "hashtable.h" + +union component { + struct script *script; + struct bag *bag; + void *any; +}; + +struct component_ref { + struct component_ref *next; + union component component; + const char *component_type; +}; + +struct script { + char *name; + char *location; + char *sha256; + bool filled; +}; + +struct bag { + char *name; + struct component_ref *components, *last_component; + bool filled; +}; + +struct page { + char *pattern; + union component payload; + const char *payload_type; +}; + +struct scriptbase { + char *repo_url; + hashtable_t scripts; + hashtable_t bags; + hashtable_t pages; +}; + +int catalogue_component(const char *path, cJSON *index_json, + struct scriptbase *base); + +int scriptbase_init(struct scriptbase *base, const char *repo_url); + +void scriptbase_destroy(struct scriptbase *base); + +const struct script *get_script(const char *name, struct scriptbase *base); +const struct bag *get_bag(const char *name, struct scriptbase *base); +const struct page *get_pattern(const char *pattern, struct scriptbase *base); + +char *get_script_json(const char *name, struct scriptbase *base); +char *get_bag_json(const char *name, struct scriptbase *base); +char *get_pattern_json(const char *name, struct scriptbase *base); +char *get_page_query_json(const char *name, struct scriptbase *base); + +int init_url_lookup_regex(void); +void destroy_url_lookup_regex(void); +int lookup_url(const char *url, struct scriptbase *base, + int (*callback)(struct page*, void*), void *data); + +#endif /* SCRIPTBASE_H */ diff --git a/src/scriptbase_build.c b/src/scriptbase_build.c new file mode 100644 index 0000000..433e839 --- /dev/null +++ b/src/scriptbase_build.c @@ -0,0 +1,540 @@ +/** + * part of Hydrilla + * Routines for building scriptbase from resources and configuratons (stored in + * `/var/lib/hydrilla/content/' or another, user-specified location. + * + * Copyright (C) 2021 Wojtek Kosior + * Redistribution terms are gathered in the `copyright' file. + */ + +#define _POSIX_C_SOURCE 200809L /* strdup() */ + +#include +#include +#include +#include + +#include "hashtable.h" +#include "string_buf.h" + +#include "scriptbase.h" + +static const char scriptstr[] = "script", bagstr[] = "bag", pagestr[] = "page"; + + +static void *add_or_get(const char *component_name, char component_type, + struct scriptbase *base); + +static struct script *script_create(const char *name) +{ + struct script *script; + + script = malloc(sizeof(struct script)); + if (!script) + return NULL; + + script->name = strdup(name); + + if (!script->name) + goto free_script; + + script->location = NULL; + script->sha256 = NULL; + script->filled = false; + + return script; + +free_script: + free(script); + + return NULL; +} + +static int script_fill(struct script *script, const char *dir, + const char *filename, const char *sha256) +{ + char *location = NULL; + size_t location_len = 0, location_filled = 0; + + if (sb_raw_sprintf(&location, &location_len, &location_filled, + "%s/%s", dir, filename)) + goto free_location; + script->location = location; + + script->sha256 = strdup(sha256); + if (!script->sha256) + goto free_location; + + script->filled = true; + + return 0; + +free_location: + free(location); + script->location = NULL; + + return -1; +} + +static void script_free(struct script *script) +{ + if (!script) + return; + + free(script->name); + free(script->location); + free(script->sha256); + free(script); +} + +static struct bag *bag_create(const char *name) +{ + struct bag *bag; + + bag = malloc(sizeof(struct bag)); + if (!bag) + return NULL; + + bag->name = strdup(name); + + if (!bag->name) + goto free_bag; + + bag->components = NULL; + bag->last_component = NULL; + bag->filled = false; + + return bag; + +free_bag: + free(bag); + + return NULL; +} + +static int bag_add(struct bag *bag, const char *component_name, + const char *component_type, struct scriptbase *base) +{ + struct component_ref *new_ref; + + new_ref = malloc(sizeof(struct component_ref)); + if (!new_ref) + return -1; + + new_ref->component.any = + add_or_get(component_name, *component_type, base); + + if (!new_ref->component.any) + goto free_ref; + + new_ref->component_type = component_type; + new_ref->next = NULL; + + *(bag->components ? &bag->last_component->next : &bag->components) = + new_ref; + bag->last_component = new_ref; + bag->filled = true; + + return 0; + +free_ref: + free(new_ref); + + return -1; +} + +static void bag_free(struct bag *bag) +{ + struct component_ref *tmp1, *tmp2; + + if (!bag) + return; + + tmp1 = bag->components; + + while (tmp1) { + tmp2 = tmp1->next; + free(tmp1); + tmp1 = tmp2; + } + + free(bag->name); + free(bag); +} + +static struct page *page_create(const char *pattern, const char *payload_name, + const char *payload_type, + struct scriptbase *base) +{ + struct page *page; + + page = malloc(sizeof(struct page)); + if (!page) + return NULL; + + page->pattern = strdup(pattern); + if (!page->pattern) + goto free_page; + + if (payload_name) { + page->payload.any = + add_or_get(payload_name, *payload_type, base); + if (!page->payload.any) + goto free_pattern; + } else { + page->payload.any = NULL; + } + + page->payload_type = payload_type; + + return page; + +free_pattern: + free(page->pattern); + +free_page: + free(page); + + return NULL; +} + +static void page_free(struct page *page) +{ + if (!page) + return; + + free(page->pattern); + free(page); +} + +static void *add_or_get(const char *component_name, char component_type, + struct scriptbase *base) +{ + void *component; + hashtable_t *relevant_ht; + bool found = true; + + relevant_ht = component_type == *bagstr ? &base->bags : &base->scripts; + if (ht_get(relevant_ht, component_name, NULL, &component)) { + if (component_type == *bagstr) + component = bag_create(component_name); + else + component = script_create(component_name); + + found = false; + } + + if (!component) + return NULL; + + /* Name is at the same position in both struct bag and struct script. */ + if (!found) { + switch (ht_add(relevant_ht, ((struct bag*) component)->name, + component)) { + case HT_NO_MEM: + errno = ENOMEM; + case HT_KEY_PRESENT: + goto free_component; + } + } + + return component; + +free_component: + if (component_type == *bagstr) + bag_free(component); + else + script_free(component); + + return NULL; +} + +int scriptbase_init(struct scriptbase *base, const char *repo_url) +{ + base->repo_url = strdup(repo_url); + if (!base->repo_url) + goto end; + + if (ht_string_init(&base->scripts)) + goto free_url; + + if (ht_string_init(&base->bags)) + goto free_scripts; + + if (ht_string_init(&base->pages)) + goto free_bags; + + return 0; + +free_bags: + ht_destroy(&base->bags); + +free_scripts: + ht_destroy(&base->scripts); + +free_url: + free(base->repo_url); + +end: + errno = ENOMEM; + return -1; +} + +static void destroy_cb(void *key, void *val, void *arg) +{ + char type = *((const char*) arg); + + if (type == 's') + script_free(val); + else if (type == 'b') + bag_free(val); + else + page_free(val); +} + +void scriptbase_destroy(struct scriptbase *base) +{ + char keys[] = {'s', 'b', 'p'}; + + ht_map_destroy(&base->scripts, keys, destroy_cb); + ht_map_destroy(&base->bags, keys + 1, destroy_cb); + ht_map_destroy(&base->pages, keys + 2, destroy_cb); + + free(base->repo_url); +} + +static int catalogue_script(const char *path, cJSON *index_json, + struct scriptbase *base) +{ + const cJSON *name, *sha256, *location; + const char *bad = NULL; + struct script *script; + bool filling_existing = false; + + name = cJSON_GetObjectItemCaseSensitive(index_json, "name"); + sha256 = cJSON_GetObjectItemCaseSensitive(index_json, "sha256"); + location = cJSON_GetObjectItemCaseSensitive(index_json, "location"); + + if (!cJSON_IsString(name) || name->valuestring == NULL) + bad = "name"; + else if (!cJSON_IsString(sha256) || sha256->valuestring == NULL) + bad = "sha256"; + else if (!cJSON_IsString(location) || location->valuestring == NULL) + bad = "location"; + + if (bad) { + fprintf(stderr, "Missing or invalid field \"%s\".\n", bad); + errno = 0; + return -1; + } + + filling_existing = !ht_get(&base->scripts, name->valuestring, + NULL, (void**) &script); + + if (filling_existing) { + if (script->filled) { + fprintf(stderr, "Multiple occurences of script %s.\n", + name->valuestring); + errno = 0; + return -1; + } + } else { + script = script_create(name->valuestring); + if (!script) + return -1; + } + + if (script_fill(script, path, location->valuestring, + sha256->valuestring)) + goto free_script; + + if (!filling_existing && ht_add(&base->scripts, script->name, script)) { + errno = ENOMEM; + goto free_script; + } + + return 0; + +free_script: + script_free(script); + return -1; +} + +static int component_ref_from_json(const cJSON *component_cJSON, + const char **component_type, + const char **component_name) +{ + const cJSON *component_type_cJSON, *component_name_cJSON; + + if (!cJSON_IsArray(component_cJSON)) + return -1; + + component_type_cJSON = component_cJSON->child; + if (!component_type_cJSON) + return -1; + component_name_cJSON = component_type_cJSON->next; + if (!component_name_cJSON || component_name_cJSON->next) + return -1; + + if (!cJSON_IsString(component_type_cJSON) || + !cJSON_IsString(component_name_cJSON)) + return -1; + + if (!strcmp(scriptstr, component_type_cJSON->valuestring)) + *component_type = scriptstr; + else if (!strcmp(bagstr, component_type_cJSON->valuestring)) + *component_type = bagstr; + else + return -1; + + *component_name = component_name_cJSON->valuestring; + + return 0; +} + +static int catalogue_bag(const char *path, cJSON *index_json, + struct scriptbase *base) +{ + const cJSON *name, *components, *component; + const char *component_type, *component_name; + struct bag *bag; + bool filling_existing = false; + + name = cJSON_GetObjectItemCaseSensitive(index_json, "name"); + + if (!cJSON_IsString(name) || name->valuestring == NULL) { + fprintf(stderr, "Missing or invalid field \"name\".\n"); + errno = 0; + return -1; + } + + filling_existing = !ht_get(&base->bags, name->valuestring, + NULL, (void**) &bag); + if (filling_existing) { + if (bag->filled) { + fprintf(stderr, "Multiple occurences of bag %s.\n", + name->valuestring); + errno = 0; + return -1; + } + } else { + bag = bag_create(name->valuestring); + if (!bag) + return -1; + } + + bag->filled = true; + + components = cJSON_GetObjectItemCaseSensitive(index_json, "components"); + if (!components) + return 0; + if (!cJSON_IsArray(components)) + goto invalid_components; + + cJSON_ArrayForEach(component, components) { + if (component_ref_from_json(component, + &component_type, &component_name)) + goto invalid_components; + + /* + * component_type now points to a static buffer and + * component_name to cJSON-owned memory + */ + + if (bag_add(bag, component_name, component_type, base)) + goto free_bag; + } + + if (!filling_existing && ht_add(&base->bags, bag->name, bag)) { + errno = ENOMEM; + goto free_bag; + } + + return 0; + +invalid_components: + fprintf(stderr, "Invalid field \"components\""); + errno = 0; + +free_bag: + bag_free(bag); + return -1; +} + +static int catalogue_page(const char *path, cJSON *index_json, + struct scriptbase *base) +{ + const cJSON *pattern, *payload; + const char *payload_type = "", *payload_name = NULL; + struct page *page; + + pattern = cJSON_GetObjectItemCaseSensitive(index_json, "pattern"); + payload = cJSON_GetObjectItemCaseSensitive(index_json, "payload"); + + if (!cJSON_IsString(pattern) || pattern->valuestring == NULL) { + fprintf(stderr, "Missing or invalid field \"pattern\".\n"); + errno = 0; + return -1; + } + + if (!payload) + goto skip_payload; + + if (component_ref_from_json(payload, &payload_type, &payload_name)) + goto invalid_payload; + +skip_payload: + page = page_create(pattern->valuestring, payload_name, payload_type, + base); + if (!page) + goto free_page; + + switch (ht_add(&base->pages, page->pattern, page)) { + case 0: + return 0; + case HT_NO_MEM: + errno = ENOMEM; + break; + case HT_KEY_PRESENT: + fprintf(stderr, "Multiple occurences of pattern %s.\n", + page->pattern); + errno = 0; + } + +free_page: + page_free(page); + return -1; + +invalid_payload: + fprintf(stderr, "Invalid field \"payload\""); + errno = 0; + + return 0; +} + +int catalogue_component(const char *path, cJSON *index_json, + struct scriptbase *base) +{ + const cJSON *type; + + type = cJSON_GetObjectItemCaseSensitive(index_json, "type"); + if (!cJSON_IsString(type) || type->valuestring == NULL) + goto bad_type; + + if (!strcmp(type->valuestring, scriptstr)) + return catalogue_script(path, index_json, base); + else if (!strcmp(type->valuestring, bagstr)) + return catalogue_bag(path, index_json, base); + else if (!strcmp(type->valuestring, pagestr)) + return catalogue_page(path, index_json, base); + else + goto bad_type; + + return 0; + +bad_type: + fprintf(stderr, "Missing or invalid type."); + + errno = 0; + return -1; +} diff --git a/src/scriptbase_json_query.c b/src/scriptbase_json_query.c new file mode 100644 index 0000000..e413b3e --- /dev/null +++ b/src/scriptbase_json_query.c @@ -0,0 +1,213 @@ +/** + * part of Hydrilla + * Routines that perform queries on in-memory scriptbase and return results in + * the form of JSON strings. + * + * Copyright (C) 2021 Wojtek Kosior + * Redistribution terms are gathered in the `copyright' file. + */ + +#include + +#include "scriptbase.h" + +#define ADD_COMPONENT(object, key, construct, adder) \ + new = cJSON_Create##construct; \ + if (!new) \ + goto free_json; \ + adder(object, key, new) + +#define ADD_TO_OBJECT(object, key, construct) \ + ADD_COMPONENT(object, key, construct, cJSON_AddItemToObject) + +#define ADD_KEY(key, construct) ADD_TO_OBJECT(json, key, construct) + +#define ARRAY_ADDER(object, key, var) cJSON_AddItemToArray(object, var) + +#define ADD_TO_ARRAY(object, construct) \ + ADD_COMPONENT(object, dummy, construct, ARRAY_ADDER) + +char *get_script_json(const char *name, struct scriptbase *base) +{ + const struct script *script; + cJSON *json, *new; + char *printed = NULL; + + script = get_script(name, base); + if (!script || !script->filled) + return NULL; + + json = cJSON_CreateObject(); + if (!json) + goto free_json; + + ADD_KEY("name", String(script->name)); + ADD_KEY("location", String(script->location)); + ADD_KEY("sha256", String(script->sha256)); + + printed = cJSON_Print(json); + +free_json: + cJSON_Delete(json); + + if (!printed) + errno = ENOMEM; + + return printed; +} + +char *get_bag_json(const char *name, struct scriptbase *base) +{ + const struct bag *bag; + cJSON *json, *new, *components, *current_component; + struct component_ref *ref; + char type_prefix[] = "\0"; + char *printed = NULL; + + bag = get_bag(name, base); + if (!bag || !bag->filled) + return NULL; + + json = cJSON_CreateObject(); + if (!json) + goto free_json; + + ADD_KEY("name", String(bag->name)); + ADD_KEY("components", Array()); + components = new; + + for (ref = bag->components; ref; ref = ref->next) { + ADD_TO_ARRAY(components, Array()); + current_component = new; + type_prefix[0] = ref->component_type[0]; + ADD_TO_ARRAY(current_component, String(type_prefix)); + /* name is at the same offset in struct bag and struct script */ + ADD_TO_ARRAY(current_component, + String(ref->component.bag->name)); + } + + printed = cJSON_Print(json); + +free_json: + cJSON_Delete(json); + + if (!printed) + errno = ENOMEM; + + return printed; +} + +cJSON *page_to_cJSON(const struct page *page) +{ + cJSON *json, *new, *payload; + char type_prefix[] = "\0"; + + json = cJSON_CreateObject(); + if (!json) + goto free_json; + + ADD_KEY("pattern", String(page->pattern)); + if (!page->payload.any) + goto skip_payload; + ADD_KEY("payload", Array()); + payload = new; + type_prefix[0] = page->payload_type[0]; + ADD_TO_ARRAY(payload, String(type_prefix)); + /* name is at the same offset in struct bag and struct script */ + ADD_TO_ARRAY(payload, String(page->payload.bag->name)); + +skip_payload: + return json; + +free_json: + cJSON_Delete(json); + + errno = ENOMEM; + + return NULL; +} + +char *get_pattern_json(const char *pattern, struct scriptbase *base) +{ + const struct page *page; + cJSON *json; + char *printed = NULL; + + page = get_pattern(pattern, base); + if (!page) + return NULL; + + json = page_to_cJSON(page); + if (!json) + return NULL; + + printed = cJSON_Print(json); + cJSON_Delete(json); + + if (!printed) + errno = ENOMEM; + + return printed; +} + +struct page_array_building { + cJSON *page_array; + bool OOM_error; +}; + +int lookup_callback(struct page *page, void *data) +{ + struct page_array_building *building = data; + cJSON *page_json; + + page_json = page_to_cJSON(page); + if (!page_json) { + building->OOM_error = true; + return -1; + } + + cJSON_AddItemToArray(building->page_array, page_json); + + return 0; +} + +#include +char *get_page_query_json(const char *url, struct scriptbase *base) +{ + struct page_array_building building = {NULL, false}; + char *printed = NULL; + int result = -2; + + building.page_array = cJSON_CreateArray(); + if (!building.page_array) + goto free_json; + + result = lookup_url(url, base, lookup_callback, &building); + + printf("lookup returned value is %d\n", result); + + if (building.OOM_error) + result = -2; + if (result < 0) + goto free_json; + + printed = cJSON_Print(building.page_array); + if (!printed) + result = -2; + +free_json: + cJSON_Delete(building.page_array); + + switch (result) { + case 0: + break; + case -1: + case -3: + errno = EINVAL; + break; + case -2: + errno = ENOMEM; + } + + return printed; +} diff --git a/src/scriptbase_query.c b/src/scriptbase_query.c new file mode 100644 index 0000000..fe9a910 --- /dev/null +++ b/src/scriptbase_query.c @@ -0,0 +1,278 @@ +/** + * part of Hydrilla + * Routines for querying in-memory scriptbase, operating on data structures from + * `scripbase.h'. + * + * Copyright (C) 2021 Wojtek Kosior + * Redistribution terms are gathered in the `copyright' file. + */ + +#include +#include +#include +#include + +#include "hashtable.h" +#include "string_buf.h" + +#include "scriptbase.h" + +const struct script *get_script(const char *name, struct scriptbase *base) +{ + void *val; + + if (ht_get_threadsafe(&base->scripts, name, NULL, &val)) + return NULL; + + return ((struct script*) val)->filled ? val : NULL; +} + +const struct bag *get_bag(const char *name, struct scriptbase *base) +{ + void *val; + + if (ht_get_threadsafe(&base->bags, name, NULL, &val)) + return NULL; + + return ((struct bag*) val)->filled ? val : NULL; +} + +const struct page *get_pattern(const char *pattern, struct scriptbase *base) +{ + void *val = NULL; + + ht_get_threadsafe(&base->pages, pattern, NULL, &val); + + return val; +} + +static const char url_regex[] = + "^" + "([a-zA-Z]{1,20}://)" /* protocol */ + "([^/?#]{1,253})" /* domain */ + "(/[^?#]*)?" /* path */ + "\\\\?[^#]*" /* query */ + "#?.*" /* target */ + "$"; + +static regex_t url_regex_comp; +static bool url_regex_ready; + +int init_url_lookup_regex(void) +{ + int retval; + + retval = regcomp(&url_regex_comp, url_regex, REG_EXTENDED); + + url_regex_ready = !retval; + + return retval; +} + +void destroy_url_lookup_regex(void) +{ + if (!url_regex_ready) { + fprintf(stderr, "Attempt to destroy uninitialized regex in " __FILE__ "\n"); + return; + } + + regfree(&url_regex_comp); +} + +#define URL_REGEX_NMATCH 4 + +#define PROTOCOL_MATCH 1 +#define DOMAIN_MATCH 2 +#define PATH_MATCH 3 + +static int lookup_url_path(const char *path_begin, const char *path_end, + struct stringbuf *buf, struct scriptbase *base, + int (*callback)(struct page*, void*), void *data) +{ + const char *segment_end = path_begin; + int segments_dropped = 0; + int initial_len = buf->buf_filled; + size_t len_path, previous_segment; + void *val; + bool trailing_dash = path_end != path_begin && path_end[-1] == '/'; + char asterisks[] = "/***"; + int trailing_asterisks = 0, i; + int result; + + while (true) { + do { + if (path_begin >= path_end) + goto after_path_normalization; + } while (*(path_begin++) == '/'); + path_begin -= 2; + + segment_end = path_begin + 1; + while (*segment_end != '/' && ++segment_end < path_end); + + if (sb_bytes(buf, path_begin, segment_end - path_begin)) + return -2; + + path_begin = segment_end; + } + +after_path_normalization: +#define TRY_WILDCARD(condition, wildcard) \ + if (condition) { \ + stringbuf_truncate(buf, len_path); \ + if (sb_string(buf, wildcard)) \ + return -2; \ + \ + result = ht_get_threadsafe(&base->pages, buf->buf, \ + NULL, &val); \ + if (!result && callback(val, data)) \ + return 1; \ + } + + while (true) { + len_path = buf->buf_filled; + previous_segment = len_path; + while (previous_segment > initial_len && + buf->buf[--previous_segment] != '/'); + + if (!trailing_asterisks) {/* only on first iteration */ + trailing_asterisks = -1; + + for (i = 3; i > 0; i--) { + asterisks[i + 1] = '\0'; + + if (strncmp(buf->buf + previous_segment, + asterisks, i + 1)) + continue; + + trailing_asterisks = i; + + if (i != 3) + break; + + if (buf->buf[previous_segment + i + 1] == '*') + trailing_asterisks = -1; + + break; + } + } + + TRY_WILDCARD(segments_dropped == 0, ""); + TRY_WILDCARD(segments_dropped == 0 && trailing_dash, "/"); + TRY_WILDCARD(segments_dropped == 1 && trailing_asterisks != 1, + "/*"); + TRY_WILDCARD(segments_dropped > 1, "/**"); + TRY_WILDCARD(segments_dropped > 0 && + (segments_dropped > 1 || trailing_asterisks != 3), + "/***"); + + stringbuf_truncate(buf, previous_segment); + + if (previous_segment == len_path) + return 0; + + /* + * We only ever care if this count is 0, 1 or > 1, + * hence size_t is not necessary. + */ + if (segments_dropped < 2) + segments_dropped++; + } + +#undef TRY_WILDCARD +} + +static int lookup_url_domain(const char *domain_begin, const char *domain_end, + const char *path_begin, const char *path_end, + struct stringbuf *buf, struct scriptbase *base, + int (*callback)(struct page*, void*), void *data) +{ + const char *next_label = domain_begin; + int labels_dropped = 0; + int initial_len = buf->buf_filled; + int result; + +#define TRY_WILDCARD(condition, wildcard) \ + if (condition) { \ + stringbuf_truncate(buf, initial_len); \ + if (sb_string(buf, wildcard) || \ + sb_bytes(buf, domain_begin, domain_end - domain_begin)) \ + return -2; \ + \ + result = lookup_url_path(path_begin, path_end, \ + buf, base, callback, data); \ + if (result) \ + return result; \ + } + + while (true) { + domain_begin = next_label; + + while (*(next_label++) != '.') { + if (next_label >= domain_end) + return 0; + } + + TRY_WILDCARD(labels_dropped == 0, ""); + TRY_WILDCARD(labels_dropped == 1, "*."); + TRY_WILDCARD(labels_dropped > 0, "**."); + TRY_WILDCARD(true, "***."); + + labels_dropped++; + } + +#undef TRY_WILDCARD +} + +static int lookup_url_proto(const char *proto_begin, const char *proto_end, + const char *domain_begin, const char *domain_end, + const char *path_begin, const char *path_end, + struct stringbuf *buf, struct scriptbase *base, + int (*callback)(struct page*, void*), void *data) +{ + if (sb_bytes(buf, proto_begin, proto_end - proto_begin)) + return -2; + + return lookup_url_domain(domain_begin, domain_end, path_begin, path_end, + buf, base, callback, data); +} + +int lookup_url(const char *url, struct scriptbase *base, + int (*callback)(struct page*, void*), void *data) +{ + regmatch_t reg_matched[URL_REGEX_NMATCH]; + struct stringbuf buf; + const char *path_begin, *path_end; + int retval; + + if (!url_regex_ready) { + fprintf(stderr, "Regex not initialized in " __FILE__ "\n"); + return -3; + } + + printf("matching: %s\n", url); + + if (regexec(&url_regex_comp, url, + URL_REGEX_NMATCH, reg_matched, 0) || + reg_matched[DOMAIN_MATCH].rm_so == -1) + return -1; + + stringbuf_init(&buf); + + path_begin = url + reg_matched[PATH_MATCH].rm_so; + path_end = url + reg_matched[PATH_MATCH].rm_eo; + if (path_begin == url - 1) { + path_begin = NULL; + path_end = NULL; + } + + retval = lookup_url_proto(url + reg_matched[PROTOCOL_MATCH].rm_so, + url + reg_matched[PROTOCOL_MATCH].rm_eo, + url + reg_matched[DOMAIN_MATCH].rm_so, + url + reg_matched[DOMAIN_MATCH].rm_eo, + path_begin, path_end, + &buf, base, callback, data); + + stringbuf_destroy(&buf); + + return retval; +} diff --git a/src/serve.c b/src/serve.c new file mode 100644 index 0000000..8ef0ce3 --- /dev/null +++ b/src/serve.c @@ -0,0 +1,215 @@ +/** + * part of Hydrilla + * Serving data queries over HTTP using libmicrohttpd. + * + * Copyright (C) 2021 Wojtek Kosior + * Redistribution terms are gathered in the `copyright' file. + * + * This file is based on Christian Grothoff's public comain code from + * `doc/examples/logging.c' in libmicrohttpd source tree. + */ + +#define _POSIX_C_SOURCE 199506L /* sigwait() */ + +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include "scriptbase.h" + +#define PORT 10111 + +#define ARRLEN(array) (sizeof(array) / sizeof(*array)) + +static struct MHD_Response *default_response, *error_response, + *not_found_response; + +static struct { + struct MHD_Response **response; + const char *const text; +} static_responses[] = { + {&default_response, "Nothing to see here"}, + {&error_response, "Error occured"}, + {¬_found_response, "Not found"} +}; + +static int add_CORS_header(struct MHD_Response *response) +{ + return -1 * (MHD_add_response_header(response, + "Access-Control-Allow-Origin", + "*") == MHD_NO); +} + +typedef char *(*request_handler_t)(const char *queried, + struct scriptbase *base); + +static struct { + const char *path; + request_handler_t request_handler; +} resources[] = { + {"/script", get_script_json}, + {"/bag", get_bag_json}, + {"/pattern", get_pattern_json}, + {"/query", get_page_query_json} +}; + +struct request_handling { + struct scriptbase *base; + request_handler_t handler; + char *json_response; + int error_number; +}; + +static int handle_query_argument(void *cls, enum MHD_ValueKind kind, + const char *key, const char *value) +{ + struct request_handling *handling = cls; + + if (strcmp(key, "n")) { + fprintf(stderr, "Unknown argument: \"%s\" = \"%s\"\n", + key, value); + return MHD_YES; + } + + errno = 0; + + handling->json_response = handling->handler(value, handling->base); + + handling->error_number = errno; + + return MHD_NO; +} + +static int answer_with(struct MHD_Connection *connection, + request_handler_t handler, struct scriptbase *base) +{ + struct request_handling handling = {base, handler, NULL, EINVAL}; + struct MHD_Response *response; + int retval; + + MHD_get_connection_values(connection, MHD_GET_ARGUMENT_KIND, + handle_query_argument, &handling); + + if (!handling.json_response) { + if (handling.error_number) + goto send_error; + goto send_not_found; + } + + response = MHD_create_response_from_buffer + (strlen(handling.json_response), handling.json_response, + MHD_RESPMEM_MUST_FREE); + if (!response || add_CORS_header(response)) + goto send_error; + + retval = MHD_queue_response(connection, MHD_HTTP_OK, response); + MHD_destroy_response(response); + + return retval; + +send_not_found: + return MHD_queue_response(connection, MHD_HTTP_NOT_FOUND, + not_found_response); + +send_error: + free(handling.json_response); + return MHD_queue_response(connection, MHD_HTTP_INTERNAL_SERVER_ERROR, + error_response); +} + +static int answer(void *data, + struct MHD_Connection *connection, + const char *url, + const char *method, + const char *version, + const char *upload_data, + size_t *upload_data_size, + void **ptr) +{ + static int aptr; + int i; + struct scriptbase *base = data; + + printf("New %s request for %s using version %s\n", method, url, version); + + if (strcmp(method, "GET")) + return MHD_NO; + + if (&aptr != *ptr) { + /* do never respond on first call */ + *ptr = &aptr; + return MHD_YES; + } + *ptr = NULL; /* reset when done */ + + for (i = 0; i < ARRLEN(resources); i++) { + if (strcmp(resources[i].path, url)) + continue; + + return answer_with(connection, resources[i].request_handler, + base); + } + + return MHD_queue_response(connection, MHD_HTTP_OK, default_response); +} + +int getchar(void); + +int serve_scriptbase(struct scriptbase *base, bool wait_for_sigterm) +{ + int i; + struct MHD_Daemon *daemon; + sigset_t sigterm_set; + int signal_number; /* only written, not read */ + int retval = -1; + + if (init_url_lookup_regex()) + return -1; + + for (i = 0; i < ARRLEN(static_responses); i++) { + *static_responses[i].response = MHD_create_response_from_buffer + (strlen(static_responses[i].text), + (char*) static_responses[i].text, + MHD_RESPMEM_PERSISTENT); + + if (!*static_responses[i].response || + add_CORS_header(*static_responses[i].response)) + goto free_resources; + } + + daemon = MHD_start_daemon(MHD_USE_INTERNAL_POLLING_THREAD, PORT, NULL, + NULL, &answer, (void*) base, MHD_OPTION_END); + if (!daemon) + goto free_resources; + + if (wait_for_sigterm) { + sigemptyset(&sigterm_set); + sigaddset(&sigterm_set, SIGTERM); + sigwait(&sigterm_set, &signal_number); + } else { + getchar(); + } + + MHD_stop_daemon(daemon); + + retval = 0; + +free_resources: + for (i = 0; i < ARRLEN(static_responses); i++) { + if (*static_responses[i].response) + MHD_destroy_response(*static_responses[i].response); + *static_responses[i].response = NULL; + } + + destroy_url_lookup_regex(); + + return retval; +} diff --git a/src/string_buf.c b/src/string_buf.c new file mode 100644 index 0000000..332d023 --- /dev/null +++ b/src/string_buf.c @@ -0,0 +1,308 @@ +/** + * C string buffers for easy construction of complex strings + * + * Copyright (C) 2021 Wojtek Kosior + * Redistribution terms are gathered in the `copyright' file. + */ + +#include +#include +#include +#include +#include + +#define STRING_BUF_C +#include "string_buf.h" + +#define MINIMUM_EXTEND_BYTES 63 + +void stringbuf_init(struct stringbuf *sb) +{ + sb->buf = NULL; + sb->buf_len = 0; + sb->buf_filled = 0; +} + +void stringbuf_destroy(struct stringbuf *sb) +{ + free(sb->buf); +} + +void stringbuf_truncate(struct stringbuf *sb, size_t len) +{ + if (sb->buf_len <= len) + return; + + sb->buf_filled = len; + sb->buf[len] = '\0'; +} + +#define _UNPACKED_ARGS &sb->buf, &sb->buf_len, &sb->buf_filled + +int extend_buf(struct stringbuf *sb, size_t extend_len) +{ + return extend_buf_raw(_UNPACKED_ARGS, extend_len); +} + +int extend_buf_raw(_RAW_BUF_ARGS, size_t extend_len) +{ + ssize_t space_left = *buf_len - *buf_filled - 1; + size_t new_size, size_required, size_more_space; + char *new_buf; + + if (space_left >= 0 && space_left >= extend_len) + return 0; + + size_required = *buf_filled + extend_len + 1; + size_more_space = size_required + MINIMUM_EXTEND_BYTES; + new_size = *buf_len * 2; + if (new_size < size_more_space) + new_size = size_more_space; + + new_buf = realloc(*buf, new_size); + if (!new_buf) { + new_size = size_required; + new_buf = realloc(*buf, new_size); + } + if (!new_buf) + return -1; + + *buf = new_buf; + *buf_len = new_size; + return 0; +} + +_SB_HEAD(bytes, const void *bytes, size_t bytes_len) +{ + return sb_raw_bytes(_UNPACKED_ARGS, bytes, bytes_len); +} + +_SB_RAW_HEAD(bytes, const void *bytes, size_t bytes_len) +{ + if (extend_buf_raw(buf, buf_len, buf_filled, bytes_len)) + return -1; + + memcpy(*buf + *buf_filled, bytes, bytes_len); + (*buf)[*buf_filled + bytes_len] = '\0'; + *buf_filled += bytes_len; + + return 0; +} + +_SB_HEAD(string, const char *string) +{ + return sb_raw_string(_UNPACKED_ARGS, string); +} + +_SB_RAW_HEAD(string, const char *string) +{ + size_t string_len = strlen(string); + + return sb_raw_bytes(buf, buf_len, buf_filled, string, string_len); +} + +_SB_HEAD(char, char c) +{ + return sb_raw_char(_UNPACKED_ARGS, c); +} + +_SB_RAW_HEAD(char, char c) +{ + return sb_raw_bytes(buf, buf_len, buf_filled, &c, 1); +} + +_SB_HEAD(long, long num) +{ + return sb_raw_long(_UNPACKED_ARGS, num); +} + +_SB_RAW_HEAD(long, long num) +{ + unsigned char repr[3 * sizeof(long) + 1]; + int i; + bool neg = num < 0; + + for (i = sizeof(repr); num; num /= 10) + repr[--i] = '0' + num % 10; + + if (i == sizeof(repr)) + repr[--i] = '0'; + else if (neg) + repr[--i] = '-'; + + sb_raw_bytes(buf, buf_len, buf_filled, + repr + i, sizeof(repr) - i); + + return 0; +} + +_SB_HEAD(file, FILE *file) +{ + return sb_raw_file(_UNPACKED_ARGS, file); +} + +_SB_RAW_HEAD(file, FILE *file) +{ + long file_size; + + if (fseek(file, 0, SEEK_END)) + return -1; + + file_size = ftell(file); + if (file_size < 0) + return -1; + + if (extend_buf_raw(buf, buf_len, buf_filled, file_size)) + return -1; + + rewind(file); + + if (fread(*buf + *buf_filled, file_size, 1, file) != 1) + return -1; + + (*buf)[*buf_filled + file_size] = '\0'; + *buf_filled += file_size; + + return 0; +} + +_SB_HEAD(filepath, const char *path) +{ + return sb_raw_filepath(_UNPACKED_ARGS, path); +} + +_SB_RAW_HEAD(filepath, const char *path) +{ + FILE *file; + int retval; + + file = fopen(path, "r"); + if (!file) + return -1; + + retval = sb_raw_file(buf, buf_len, buf_filled, file); + + fclose(file); + return retval; +} + +_SB_HEAD(vsprintf, const char *fmt, va_list ap) +{ + return sb_raw_vsprintf(_UNPACKED_ARGS, fmt, ap); +} + +_SB_RAW_HEAD(vsprintf, const char *fmt, va_list ap) +{ + const unsigned char *in_pos = (const unsigned char*) fmt; + char c; + size_t i = 0; + bool percent = false; + + long num_arg; + int (*sb_cb)(char**, size_t*, size_t*, void*); + + while (in_pos[i]) { + c = in_pos[i++]; + + if (!percent) { + if (c == '%') { + percent = true; + if (sb_raw_bytes(buf, buf_len, buf_filled, + in_pos, i - 1)) + return -1; + } + + continue; + } + + percent = false; + in_pos += i; + i = 0; + + switch (c) { + case 'd': + case 'u': + num_arg = c == 'd' ? + va_arg(ap, int) : va_arg(ap, unsigned); + + if (sb_raw_long(buf, buf_len, buf_filled, num_arg)) + return -1; + break; + case 'f': + if (sb_raw_file(buf, buf_len, buf_filled, + va_arg(ap, FILE*))) + return -1; + break; + case 'p': + if (sb_raw_filepath(buf, buf_len, buf_filled, + va_arg(ap, const char*))) + return -1; + break; + case 's': + if (sb_raw_string(buf, buf_len, buf_filled, + va_arg(ap, const char*))) + return -1; + break; + case '_': + sb_cb = va_arg(ap, int (*)(char**, size_t*, + size_t*, void*)); + if (sb_cb(buf, buf_len, buf_filled, + va_arg(ap, void*))) + return -1; + break; + case '%': + in_pos--; + i++; + } + } + + if (!percent && sb_raw_bytes(buf, buf_len, buf_filled, in_pos, i)) + return -1; + + return 0; +} + +_SB_HEAD(sprintf, const char *fmt, ...) +{ + va_list ap; + int res; + + va_start(ap, fmt); + res = sb_raw_vsprintf(_UNPACKED_ARGS, fmt, ap); + va_end(ap); + + return res; +} + +_SB_RAW_HEAD(sprintf, const char *fmt, ...) +{ + va_list ap; + int res; + + va_start(ap, fmt); + res = sb_raw_vsprintf(buf, buf_len, buf_filled, fmt, ap); + va_end(ap); + + return res; +} + +int crop_buf(struct stringbuf *sb) +{ + return crop_buf_raw(_UNPACKED_ARGS); +} + +int crop_buf_raw(_RAW_BUF_ARGS) +{ + char *new_buf; + + if (*buf_len <= *buf_filled + 1) + return 0; + + new_buf = realloc(*buf, *buf_filled + 1); + if (!new_buf) + return -1; + + *buf = new_buf; + *buf_len = *buf_filled + 1; + return 0; +} diff --git a/src/string_buf.h b/src/string_buf.h new file mode 100644 index 0000000..160b7cb --- /dev/null +++ b/src/string_buf.h @@ -0,0 +1,59 @@ +/** + * C string buffers for easy construction of complex strings + * + * Copyright (C) 2021 Wojtek Kosior + * Redistribution terms are gathered in the `copyright' file. + */ + +#ifndef STRING_BUF_H +#define STRING_BUF_H + +#include +#include + +struct stringbuf { + char *buf; + size_t buf_len; + size_t buf_filled; +}; + +void stringbuf_init(struct stringbuf *sb); +void stringbuf_destroy(struct stringbuf *sb); +void stringbuf_truncate(struct stringbuf *sb, size_t len); + +#define _RAW_BUF_ARGS char **buf, size_t *buf_len, size_t *buf_filled + +#define _SB_HEAD(name, ...) \ + int sb_##name(struct stringbuf *sb, __VA_ARGS__) + +#define _SB_RAW_HEAD(name, ...) \ + int sb_raw_##name(_RAW_BUF_ARGS, __VA_ARGS__) + +#define _SB_DEFINE_2(name, ...) \ + _SB_HEAD(name, __VA_ARGS__); \ + _SB_RAW_HEAD(name, __VA_ARGS__) + +int extend_buf_raw(_RAW_BUF_ARGS, size_t extend_len); +int extend_buf(struct stringbuf *sb, size_t extend_len); + +int crop_buf_raw(_RAW_BUF_ARGS); +int crop_buf(struct stringbuf *sb); + +_SB_DEFINE_2(bytes, const void *bytes, size_t bytes_len); +_SB_DEFINE_2(string, const char *string); +_SB_DEFINE_2(char, char c); +_SB_DEFINE_2(long, long num); +_SB_DEFINE_2(file, FILE *file); +_SB_DEFINE_2(filepath, const char *path); +_SB_DEFINE_2(vsprintf, const char *fmt, va_list ap); +_SB_DEFINE_2(sprintf, const char *fmt, ...); + +#undef _SB_DEFINE_2 + +#ifndef STRING_BUF_C +#undef _RAW_BUF_ARGS +#undef _SB_HEAD +#undef _SB_RAW_HEAD +#endif + +#endif /* STRING_BUF_H */ diff --git a/string_buf.c b/string_buf.c deleted file mode 100644 index 332d023..0000000 --- a/string_buf.c +++ /dev/null @@ -1,308 +0,0 @@ -/** - * C string buffers for easy construction of complex strings - * - * Copyright (C) 2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - */ - -#include -#include -#include -#include -#include - -#define STRING_BUF_C -#include "string_buf.h" - -#define MINIMUM_EXTEND_BYTES 63 - -void stringbuf_init(struct stringbuf *sb) -{ - sb->buf = NULL; - sb->buf_len = 0; - sb->buf_filled = 0; -} - -void stringbuf_destroy(struct stringbuf *sb) -{ - free(sb->buf); -} - -void stringbuf_truncate(struct stringbuf *sb, size_t len) -{ - if (sb->buf_len <= len) - return; - - sb->buf_filled = len; - sb->buf[len] = '\0'; -} - -#define _UNPACKED_ARGS &sb->buf, &sb->buf_len, &sb->buf_filled - -int extend_buf(struct stringbuf *sb, size_t extend_len) -{ - return extend_buf_raw(_UNPACKED_ARGS, extend_len); -} - -int extend_buf_raw(_RAW_BUF_ARGS, size_t extend_len) -{ - ssize_t space_left = *buf_len - *buf_filled - 1; - size_t new_size, size_required, size_more_space; - char *new_buf; - - if (space_left >= 0 && space_left >= extend_len) - return 0; - - size_required = *buf_filled + extend_len + 1; - size_more_space = size_required + MINIMUM_EXTEND_BYTES; - new_size = *buf_len * 2; - if (new_size < size_more_space) - new_size = size_more_space; - - new_buf = realloc(*buf, new_size); - if (!new_buf) { - new_size = size_required; - new_buf = realloc(*buf, new_size); - } - if (!new_buf) - return -1; - - *buf = new_buf; - *buf_len = new_size; - return 0; -} - -_SB_HEAD(bytes, const void *bytes, size_t bytes_len) -{ - return sb_raw_bytes(_UNPACKED_ARGS, bytes, bytes_len); -} - -_SB_RAW_HEAD(bytes, const void *bytes, size_t bytes_len) -{ - if (extend_buf_raw(buf, buf_len, buf_filled, bytes_len)) - return -1; - - memcpy(*buf + *buf_filled, bytes, bytes_len); - (*buf)[*buf_filled + bytes_len] = '\0'; - *buf_filled += bytes_len; - - return 0; -} - -_SB_HEAD(string, const char *string) -{ - return sb_raw_string(_UNPACKED_ARGS, string); -} - -_SB_RAW_HEAD(string, const char *string) -{ - size_t string_len = strlen(string); - - return sb_raw_bytes(buf, buf_len, buf_filled, string, string_len); -} - -_SB_HEAD(char, char c) -{ - return sb_raw_char(_UNPACKED_ARGS, c); -} - -_SB_RAW_HEAD(char, char c) -{ - return sb_raw_bytes(buf, buf_len, buf_filled, &c, 1); -} - -_SB_HEAD(long, long num) -{ - return sb_raw_long(_UNPACKED_ARGS, num); -} - -_SB_RAW_HEAD(long, long num) -{ - unsigned char repr[3 * sizeof(long) + 1]; - int i; - bool neg = num < 0; - - for (i = sizeof(repr); num; num /= 10) - repr[--i] = '0' + num % 10; - - if (i == sizeof(repr)) - repr[--i] = '0'; - else if (neg) - repr[--i] = '-'; - - sb_raw_bytes(buf, buf_len, buf_filled, - repr + i, sizeof(repr) - i); - - return 0; -} - -_SB_HEAD(file, FILE *file) -{ - return sb_raw_file(_UNPACKED_ARGS, file); -} - -_SB_RAW_HEAD(file, FILE *file) -{ - long file_size; - - if (fseek(file, 0, SEEK_END)) - return -1; - - file_size = ftell(file); - if (file_size < 0) - return -1; - - if (extend_buf_raw(buf, buf_len, buf_filled, file_size)) - return -1; - - rewind(file); - - if (fread(*buf + *buf_filled, file_size, 1, file) != 1) - return -1; - - (*buf)[*buf_filled + file_size] = '\0'; - *buf_filled += file_size; - - return 0; -} - -_SB_HEAD(filepath, const char *path) -{ - return sb_raw_filepath(_UNPACKED_ARGS, path); -} - -_SB_RAW_HEAD(filepath, const char *path) -{ - FILE *file; - int retval; - - file = fopen(path, "r"); - if (!file) - return -1; - - retval = sb_raw_file(buf, buf_len, buf_filled, file); - - fclose(file); - return retval; -} - -_SB_HEAD(vsprintf, const char *fmt, va_list ap) -{ - return sb_raw_vsprintf(_UNPACKED_ARGS, fmt, ap); -} - -_SB_RAW_HEAD(vsprintf, const char *fmt, va_list ap) -{ - const unsigned char *in_pos = (const unsigned char*) fmt; - char c; - size_t i = 0; - bool percent = false; - - long num_arg; - int (*sb_cb)(char**, size_t*, size_t*, void*); - - while (in_pos[i]) { - c = in_pos[i++]; - - if (!percent) { - if (c == '%') { - percent = true; - if (sb_raw_bytes(buf, buf_len, buf_filled, - in_pos, i - 1)) - return -1; - } - - continue; - } - - percent = false; - in_pos += i; - i = 0; - - switch (c) { - case 'd': - case 'u': - num_arg = c == 'd' ? - va_arg(ap, int) : va_arg(ap, unsigned); - - if (sb_raw_long(buf, buf_len, buf_filled, num_arg)) - return -1; - break; - case 'f': - if (sb_raw_file(buf, buf_len, buf_filled, - va_arg(ap, FILE*))) - return -1; - break; - case 'p': - if (sb_raw_filepath(buf, buf_len, buf_filled, - va_arg(ap, const char*))) - return -1; - break; - case 's': - if (sb_raw_string(buf, buf_len, buf_filled, - va_arg(ap, const char*))) - return -1; - break; - case '_': - sb_cb = va_arg(ap, int (*)(char**, size_t*, - size_t*, void*)); - if (sb_cb(buf, buf_len, buf_filled, - va_arg(ap, void*))) - return -1; - break; - case '%': - in_pos--; - i++; - } - } - - if (!percent && sb_raw_bytes(buf, buf_len, buf_filled, in_pos, i)) - return -1; - - return 0; -} - -_SB_HEAD(sprintf, const char *fmt, ...) -{ - va_list ap; - int res; - - va_start(ap, fmt); - res = sb_raw_vsprintf(_UNPACKED_ARGS, fmt, ap); - va_end(ap); - - return res; -} - -_SB_RAW_HEAD(sprintf, const char *fmt, ...) -{ - va_list ap; - int res; - - va_start(ap, fmt); - res = sb_raw_vsprintf(buf, buf_len, buf_filled, fmt, ap); - va_end(ap); - - return res; -} - -int crop_buf(struct stringbuf *sb) -{ - return crop_buf_raw(_UNPACKED_ARGS); -} - -int crop_buf_raw(_RAW_BUF_ARGS) -{ - char *new_buf; - - if (*buf_len <= *buf_filled + 1) - return 0; - - new_buf = realloc(*buf, *buf_filled + 1); - if (!new_buf) - return -1; - - *buf = new_buf; - *buf_len = *buf_filled + 1; - return 0; -} diff --git a/string_buf.h b/string_buf.h deleted file mode 100644 index 160b7cb..0000000 --- a/string_buf.h +++ /dev/null @@ -1,59 +0,0 @@ -/** - * C string buffers for easy construction of complex strings - * - * Copyright (C) 2021 Wojtek Kosior - * Redistribution terms are gathered in the `copyright' file. - */ - -#ifndef STRING_BUF_H -#define STRING_BUF_H - -#include -#include - -struct stringbuf { - char *buf; - size_t buf_len; - size_t buf_filled; -}; - -void stringbuf_init(struct stringbuf *sb); -void stringbuf_destroy(struct stringbuf *sb); -void stringbuf_truncate(struct stringbuf *sb, size_t len); - -#define _RAW_BUF_ARGS char **buf, size_t *buf_len, size_t *buf_filled - -#define _SB_HEAD(name, ...) \ - int sb_##name(struct stringbuf *sb, __VA_ARGS__) - -#define _SB_RAW_HEAD(name, ...) \ - int sb_raw_##name(_RAW_BUF_ARGS, __VA_ARGS__) - -#define _SB_DEFINE_2(name, ...) \ - _SB_HEAD(name, __VA_ARGS__); \ - _SB_RAW_HEAD(name, __VA_ARGS__) - -int extend_buf_raw(_RAW_BUF_ARGS, size_t extend_len); -int extend_buf(struct stringbuf *sb, size_t extend_len); - -int crop_buf_raw(_RAW_BUF_ARGS); -int crop_buf(struct stringbuf *sb); - -_SB_DEFINE_2(bytes, const void *bytes, size_t bytes_len); -_SB_DEFINE_2(string, const char *string); -_SB_DEFINE_2(char, char c); -_SB_DEFINE_2(long, long num); -_SB_DEFINE_2(file, FILE *file); -_SB_DEFINE_2(filepath, const char *path); -_SB_DEFINE_2(vsprintf, const char *fmt, va_list ap); -_SB_DEFINE_2(sprintf, const char *fmt, ...); - -#undef _SB_DEFINE_2 - -#ifndef STRING_BUF_C -#undef _RAW_BUF_ARGS -#undef _SB_HEAD -#undef _SB_RAW_HEAD -#endif - -#endif /* STRING_BUF_H */ -- cgit v1.2.3