From 615e3302c9dd358bb64cd56d1f3814ad8d5df84d Mon Sep 17 00:00:00 2001
From: vetch <vetch97@gmail.com>
Date: Sat, 4 Jan 2020 19:37:32 +0100
Subject: rearranged files, updated makefile

---
 makefs.c | 97 ----------------------------------------------------------------
 1 file changed, 97 deletions(-)
 delete mode 100644 makefs.c

(limited to 'makefs.c')

diff --git a/makefs.c b/makefs.c
deleted file mode 100644
index 379e8c5..0000000
--- a/makefs.c
+++ /dev/null
@@ -1,97 +0,0 @@
-// Take files given on stdin and make them into a ramfs image of our
-// own, (stupid) simple format.
-// In the format: for each file comes the null-terminated string
-// with filename, then null-padding until a 4-aligned offset, then
-// 4-byte little-endian size of the file and then the contents
-// of the file and then another null-padding until a 4-aligned offset.
-// Files encoded this way go one after another (so it's easy to add
-// something at the beginning).
-// At the and comes one null-byte (as if a file with empty name
-// was there).
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <err.h>
-#include <sys/stat.h>
-#include <string.h>
-
-#define ANSI_FG_RED "\033[0;31m"
-#define ANSI_FG_DEFAULT "\033[0;39m"
-
-int main(int argc, char **argv)
-{
-  // process files in the order they are provided on the command line
-  for (int i = 1; i < argc; i++)
-    {
-      struct stat fileinfo;
-      
-      if (stat(argv[i], &fileinfo))
-	err(-1, "couldn't stat " ANSI_FG_RED "%s" ANSI_FG_DEFAULT,
-	    argv[i]);
-	
-      if (!S_ISREG(fileinfo.st_mode))
-	errx(-1, ANSI_FG_RED "%s" ANSI_FG_DEFAULT
-	     " is not a regular file.", argv[i]);
-
-      // don't allow files with size so big, that it can't be encoded
-      // in a 4-byte unsigned int... In practice even smaller files
-      // won't fit on the rpi.
-      if (fileinfo.st_size > UINT32_MAX)
-	errx(-1, ANSI_FG_RED "%s" ANSI_FG_DEFAULT
-	     " is too big.", argv[i]);
-      
-      uint32_t file_size = fileinfo.st_size;
-      uint32_t name_size = strlen(argv[i]) + 1; // 1 for null-byte
-      
-      if (fwrite(argv[i], 1, name_size, stdout) != name_size)
-	errx(-1, "error writing to stdout");
-
-      // pad with null-bytes until a 4-aligned offset
-      for (uint32_t j = 0; (j + name_size) & 0b11; j++)
-	if (putchar('\0'))
-	  errx(-1, "error writing to stdout");	  
-
-      // TODO convert file_size to little endian first (in case our
-      // host is be).
-      if (fwrite(&file_size, 4, 1, stdout) != 1)
-	errx(-1, "error writing to stdout");
-
-      // flush b4 running cat, so that stuff we've written comes
-      // b4 the actual file contents in the output
-      if (fflush(stdout))
-	err(-1, "couldn't flush stdout");
-
-      // we don't copy the actual file ourselves - we run cat for that
-      pid_t pid;
-      int wstatus;
-      switch (pid = fork())
-	{
-	case -1:
-	  err(-1, "couldn't fork");
-	case 0:
-	  if (execlp("cat", "cat", argv[i], NULL))
-	    err(-1, "couldn't execute cat");
-	default:
-	  if (wait(&wstatus) == -1)
-	    err(-1, "error waiting for child");
-
-	  if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus))
-	    exit(-1);
-	}
-
-      // again, pad with null-bytes until a 4-aligned offset
-      for (uint32_t j = 0; (j + file_size) & 0b11; j++)
-	if (putchar('\0'))
-	  errx(-1, "error writing to stdout");
-    }
-  
-  if (putchar('\0'))
-    errx(-1, "error writing to stdout");
-  
-  return 0;
-}
-
-- 
cgit v1.2.3