From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001 From: Wojtek Kosior Date: Fri, 30 Apr 2021 00:33:56 +0200 Subject: initial/final commit --- openssl-1.1.0h/apps/opt.c | 977 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 977 insertions(+) create mode 100644 openssl-1.1.0h/apps/opt.c (limited to 'openssl-1.1.0h/apps/opt.c') diff --git a/openssl-1.1.0h/apps/opt.c b/openssl-1.1.0h/apps/opt.c new file mode 100644 index 0000000..6e40f64 --- /dev/null +++ b/openssl-1.1.0h/apps/opt.c @@ -0,0 +1,977 @@ +/* + * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +/* #define COMPILE_STANDALONE_TEST_DRIVER */ +#include "apps.h" +#include +#if !defined(OPENSSL_SYS_MSDOS) +# include OPENSSL_UNISTD +#endif + +#include +#include +#include +#include +#include +#include + +#define MAX_OPT_HELP_WIDTH 30 +const char OPT_HELP_STR[] = "--"; +const char OPT_MORE_STR[] = "---"; + +/* Our state */ +static char **argv; +static int argc; +static int opt_index; +static char *arg; +static char *flag; +static char *dunno; +static const OPTIONS *unknown; +static const OPTIONS *opts; +static char prog[40]; + +/* + * Return the simple name of the program; removing various platform gunk. + */ +#if defined(OPENSSL_SYS_WIN32) +char *opt_progname(const char *argv0) +{ + size_t i, n; + const char *p; + char *q; + + /* find the last '/', '\' or ':' */ + for (p = argv0 + strlen(argv0); --p > argv0;) + if (*p == '/' || *p == '\\' || *p == ':') { + p++; + break; + } + + /* Strip off trailing nonsense. */ + n = strlen(p); + if (n > 4 && + (strcmp(&p[n - 4], ".exe") == 0 || strcmp(&p[n - 4], ".EXE") == 0)) + n -= 4; + + /* Copy over the name, in lowercase. */ + if (n > sizeof(prog) - 1) + n = sizeof(prog) - 1; + for (q = prog, i = 0; i < n; i++, p++) + *q++ = tolower((unsigned char)*p); + *q = '\0'; + return prog; +} + +#elif defined(OPENSSL_SYS_VMS) + +char *opt_progname(const char *argv0) +{ + const char *p, *q; + + /* Find last special character sys:[foo.bar]openssl */ + for (p = argv0 + strlen(argv0); --p > argv0;) + if (*p == ':' || *p == ']' || *p == '>') { + p++; + break; + } + + q = strrchr(p, '.'); + strncpy(prog, p, sizeof(prog) - 1); + prog[sizeof(prog) - 1] = '\0'; + if (q != NULL && q - p < sizeof(prog)) + prog[q - p] = '\0'; + return prog; +} + +#else + +char *opt_progname(const char *argv0) +{ + const char *p; + + /* Could use strchr, but this is like the ones above. */ + for (p = argv0 + strlen(argv0); --p > argv0;) + if (*p == '/') { + p++; + break; + } + strncpy(prog, p, sizeof(prog) - 1); + prog[sizeof(prog) - 1] = '\0'; + return prog; +} +#endif + +char *opt_getprog(void) +{ + return prog; +} + +/* Set up the arg parsing. */ +char *opt_init(int ac, char **av, const OPTIONS *o) +{ + /* Store state. */ + argc = ac; + argv = av; + opt_index = 1; + opts = o; + opt_progname(av[0]); + unknown = NULL; + + for (; o->name; ++o) { +#ifndef NDEBUG + const OPTIONS *next; + int duplicated, i; +#endif + + if (o->name == OPT_HELP_STR || o->name == OPT_MORE_STR) + continue; +#ifndef NDEBUG + i = o->valtype; + + /* Make sure options are legit. */ + assert(o->name[0] != '-'); + assert(o->retval > 0); + switch (i) { + case 0: case '-': case '/': case '<': case '>': case 'E': case 'F': + case 'M': case 'U': case 'f': case 'l': case 'n': case 'p': case 's': + case 'u': case 'c': + break; + default: + assert(0); + } + + /* Make sure there are no duplicates. */ + for (next = o + 1; next->name; ++next) { + /* + * Some compilers inline strcmp and the assert string is too long. + */ + duplicated = strcmp(o->name, next->name) == 0; + assert(!duplicated); + } +#endif + if (o->name[0] == '\0') { + assert(unknown == NULL); + unknown = o; + assert(unknown->valtype == 0 || unknown->valtype == '-'); + } + } + return prog; +} + +static OPT_PAIR formats[] = { + {"PEM/DER", OPT_FMT_PEMDER}, + {"pkcs12", OPT_FMT_PKCS12}, + {"smime", OPT_FMT_SMIME}, + {"engine", OPT_FMT_ENGINE}, + {"msblob", OPT_FMT_MSBLOB}, + {"netscape", OPT_FMT_NETSCAPE}, + {"nss", OPT_FMT_NSS}, + {"text", OPT_FMT_TEXT}, + {"http", OPT_FMT_HTTP}, + {"pvk", OPT_FMT_PVK}, + {NULL} +}; + +/* Print an error message about a failed format parse. */ +int opt_format_error(const char *s, unsigned long flags) +{ + OPT_PAIR *ap; + + if (flags == OPT_FMT_PEMDER) + BIO_printf(bio_err, "%s: Bad format \"%s\"; must be pem or der\n", + prog, s); + else { + BIO_printf(bio_err, "%s: Bad format \"%s\"; must be one of:\n", + prog, s); + for (ap = formats; ap->name; ap++) + if (flags & ap->retval) + BIO_printf(bio_err, " %s\n", ap->name); + } + return 0; +} + +/* Parse a format string, put it into *result; return 0 on failure, else 1. */ +int opt_format(const char *s, unsigned long flags, int *result) +{ + switch (*s) { + default: + return 0; + case 'D': + case 'd': + if ((flags & OPT_FMT_PEMDER) == 0) + return opt_format_error(s, flags); + *result = FORMAT_ASN1; + break; + case 'T': + case 't': + if ((flags & OPT_FMT_TEXT) == 0) + return opt_format_error(s, flags); + *result = FORMAT_TEXT; + break; + case 'N': + case 'n': + if ((flags & OPT_FMT_NSS) == 0) + return opt_format_error(s, flags); + if (strcmp(s, "NSS") != 0 && strcmp(s, "nss") != 0) + return opt_format_error(s, flags); + *result = FORMAT_NSS; + break; + case 'S': + case 's': + if ((flags & OPT_FMT_SMIME) == 0) + return opt_format_error(s, flags); + *result = FORMAT_SMIME; + break; + case 'M': + case 'm': + if ((flags & OPT_FMT_MSBLOB) == 0) + return opt_format_error(s, flags); + *result = FORMAT_MSBLOB; + break; + case 'E': + case 'e': + if ((flags & OPT_FMT_ENGINE) == 0) + return opt_format_error(s, flags); + *result = FORMAT_ENGINE; + break; + case 'H': + case 'h': + if ((flags & OPT_FMT_HTTP) == 0) + return opt_format_error(s, flags); + *result = FORMAT_HTTP; + break; + case '1': + if ((flags & OPT_FMT_PKCS12) == 0) + return opt_format_error(s, flags); + *result = FORMAT_PKCS12; + break; + case 'P': + case 'p': + if (s[1] == '\0' || strcmp(s, "PEM") == 0 || strcmp(s, "pem") == 0) { + if ((flags & OPT_FMT_PEMDER) == 0) + return opt_format_error(s, flags); + *result = FORMAT_PEM; + } else if (strcmp(s, "PVK") == 0 || strcmp(s, "pvk") == 0) { + if ((flags & OPT_FMT_PVK) == 0) + return opt_format_error(s, flags); + *result = FORMAT_PVK; + } else if (strcmp(s, "P12") == 0 || strcmp(s, "p12") == 0 + || strcmp(s, "PKCS12") == 0 || strcmp(s, "pkcs12") == 0) { + if ((flags & OPT_FMT_PKCS12) == 0) + return opt_format_error(s, flags); + *result = FORMAT_PKCS12; + } else + return 0; + break; + } + return 1; +} + +/* Parse a cipher name, put it in *EVP_CIPHER; return 0 on failure, else 1. */ +int opt_cipher(const char *name, const EVP_CIPHER **cipherp) +{ + *cipherp = EVP_get_cipherbyname(name); + if (*cipherp) + return 1; + BIO_printf(bio_err, "%s: Unknown cipher %s\n", prog, name); + return 0; +} + +/* + * Parse message digest name, put it in *EVP_MD; return 0 on failure, else 1. + */ +int opt_md(const char *name, const EVP_MD **mdp) +{ + *mdp = EVP_get_digestbyname(name); + if (*mdp) + return 1; + BIO_printf(bio_err, "%s: Unknown digest %s\n", prog, name); + return 0; +} + +/* Look through a list of name/value pairs. */ +int opt_pair(const char *name, const OPT_PAIR* pairs, int *result) +{ + const OPT_PAIR *pp; + + for (pp = pairs; pp->name; pp++) + if (strcmp(pp->name, name) == 0) { + *result = pp->retval; + return 1; + } + BIO_printf(bio_err, "%s: Value must be one of:\n", prog); + for (pp = pairs; pp->name; pp++) + BIO_printf(bio_err, "\t%s\n", pp->name); + return 0; +} + +/* Parse an int, put it into *result; return 0 on failure, else 1. */ +int opt_int(const char *value, int *result) +{ + long l; + + if (!opt_long(value, &l)) + return 0; + *result = (int)l; + if (*result != l) { + BIO_printf(bio_err, "%s: Value \"%s\" outside integer range\n", + prog, value); + return 0; + } + return 1; +} + +/* Parse a long, put it into *result; return 0 on failure, else 1. */ +int opt_long(const char *value, long *result) +{ + int oerrno = errno; + long l; + char *endp; + + errno = 0; + l = strtol(value, &endp, 0); + if (*endp + || endp == value + || ((l == LONG_MAX || l == LONG_MIN) && errno == ERANGE) + || (l == 0 && errno != 0)) { + BIO_printf(bio_err, "%s: Can't parse \"%s\" as a number\n", + prog, value); + errno = oerrno; + return 0; + } + *result = l; + errno = oerrno; + return 1; +} + +#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L && \ + defined(INTMAX_MAX) && defined(UINTMAX_MAX) + +/* Parse an intmax_t, put it into *result; return 0 on failure, else 1. */ +int opt_imax(const char *value, intmax_t *result) +{ + int oerrno = errno; + intmax_t m; + char *endp; + + errno = 0; + m = strtoimax(value, &endp, 0); + if (*endp + || endp == value + || ((m == INTMAX_MAX || m == INTMAX_MIN) && errno == ERANGE) + || (m == 0 && errno != 0)) { + BIO_printf(bio_err, "%s: Can't parse \"%s\" as a number\n", + prog, value); + errno = oerrno; + return 0; + } + *result = m; + errno = oerrno; + return 1; +} + +/* Parse a uintmax_t, put it into *result; return 0 on failure, else 1. */ +int opt_umax(const char *value, uintmax_t *result) +{ + int oerrno = errno; + uintmax_t m; + char *endp; + + errno = 0; + m = strtoumax(value, &endp, 0); + if (*endp + || endp == value + || (m == UINTMAX_MAX && errno == ERANGE) + || (m == 0 && errno != 0)) { + BIO_printf(bio_err, "%s: Can't parse \"%s\" as a number\n", + prog, value); + errno = oerrno; + return 0; + } + *result = m; + errno = oerrno; + return 1; +} +#endif + +/* + * Parse an unsigned long, put it into *result; return 0 on failure, else 1. + */ +int opt_ulong(const char *value, unsigned long *result) +{ + int oerrno = errno; + char *endptr; + unsigned long l; + + errno = 0; + l = strtoul(value, &endptr, 0); + if (*endptr + || endptr == value + || ((l == ULONG_MAX) && errno == ERANGE) + || (l == 0 && errno != 0)) { + BIO_printf(bio_err, "%s: Can't parse \"%s\" as an unsigned number\n", + prog, value); + errno = oerrno; + return 0; + } + *result = l; + errno = oerrno; + return 1; +} + +/* + * We pass opt as an int but cast it to "enum range" so that all the + * items in the OPT_V_ENUM enumeration are caught; this makes -Wswitch + * in gcc do the right thing. + */ +enum range { OPT_V_ENUM }; + +int opt_verify(int opt, X509_VERIFY_PARAM *vpm) +{ + int i; + ossl_intmax_t t = 0; + ASN1_OBJECT *otmp; + X509_PURPOSE *xptmp; + const X509_VERIFY_PARAM *vtmp; + + assert(vpm != NULL); + assert(opt > OPT_V__FIRST); + assert(opt < OPT_V__LAST); + + switch ((enum range)opt) { + case OPT_V__FIRST: + case OPT_V__LAST: + return 0; + case OPT_V_POLICY: + otmp = OBJ_txt2obj(opt_arg(), 0); + if (otmp == NULL) { + BIO_printf(bio_err, "%s: Invalid Policy %s\n", prog, opt_arg()); + return 0; + } + X509_VERIFY_PARAM_add0_policy(vpm, otmp); + break; + case OPT_V_PURPOSE: + /* purpose name -> purpose index */ + i = X509_PURPOSE_get_by_sname(opt_arg()); + if (i < 0) { + BIO_printf(bio_err, "%s: Invalid purpose %s\n", prog, opt_arg()); + return 0; + } + + /* purpose index -> purpose object */ + xptmp = X509_PURPOSE_get0(i); + + /* purpose object -> purpose value */ + i = X509_PURPOSE_get_id(xptmp); + + if (!X509_VERIFY_PARAM_set_purpose(vpm, i)) { + BIO_printf(bio_err, + "%s: Internal error setting purpose %s\n", + prog, opt_arg()); + return 0; + } + break; + case OPT_V_VERIFY_NAME: + vtmp = X509_VERIFY_PARAM_lookup(opt_arg()); + if (vtmp == NULL) { + BIO_printf(bio_err, "%s: Invalid verify name %s\n", + prog, opt_arg()); + return 0; + } + X509_VERIFY_PARAM_set1(vpm, vtmp); + break; + case OPT_V_VERIFY_DEPTH: + i = atoi(opt_arg()); + if (i >= 0) + X509_VERIFY_PARAM_set_depth(vpm, i); + break; + case OPT_V_VERIFY_AUTH_LEVEL: + i = atoi(opt_arg()); + if (i >= 0) + X509_VERIFY_PARAM_set_auth_level(vpm, i); + break; + case OPT_V_ATTIME: + if (!opt_imax(opt_arg(), &t)) + return 0; + if (t != (time_t)t) { + BIO_printf(bio_err, "%s: epoch time out of range %s\n", + prog, opt_arg()); + return 0; + } + X509_VERIFY_PARAM_set_time(vpm, (time_t)t); + break; + case OPT_V_VERIFY_HOSTNAME: + if (!X509_VERIFY_PARAM_set1_host(vpm, opt_arg(), 0)) + return 0; + break; + case OPT_V_VERIFY_EMAIL: + if (!X509_VERIFY_PARAM_set1_email(vpm, opt_arg(), 0)) + return 0; + break; + case OPT_V_VERIFY_IP: + if (!X509_VERIFY_PARAM_set1_ip_asc(vpm, opt_arg())) + return 0; + break; + case OPT_V_IGNORE_CRITICAL: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_IGNORE_CRITICAL); + break; + case OPT_V_ISSUER_CHECKS: + /* NOP, deprecated */ + break; + case OPT_V_CRL_CHECK: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_CRL_CHECK); + break; + case OPT_V_CRL_CHECK_ALL: + X509_VERIFY_PARAM_set_flags(vpm, + X509_V_FLAG_CRL_CHECK | + X509_V_FLAG_CRL_CHECK_ALL); + break; + case OPT_V_POLICY_CHECK: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_POLICY_CHECK); + break; + case OPT_V_EXPLICIT_POLICY: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_EXPLICIT_POLICY); + break; + case OPT_V_INHIBIT_ANY: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_INHIBIT_ANY); + break; + case OPT_V_INHIBIT_MAP: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_INHIBIT_MAP); + break; + case OPT_V_X509_STRICT: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_X509_STRICT); + break; + case OPT_V_EXTENDED_CRL: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_EXTENDED_CRL_SUPPORT); + break; + case OPT_V_USE_DELTAS: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_USE_DELTAS); + break; + case OPT_V_POLICY_PRINT: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_NOTIFY_POLICY); + break; + case OPT_V_CHECK_SS_SIG: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_CHECK_SS_SIGNATURE); + break; + case OPT_V_TRUSTED_FIRST: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_TRUSTED_FIRST); + break; + case OPT_V_SUITEB_128_ONLY: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_SUITEB_128_LOS_ONLY); + break; + case OPT_V_SUITEB_128: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_SUITEB_128_LOS); + break; + case OPT_V_SUITEB_192: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_SUITEB_192_LOS); + break; + case OPT_V_PARTIAL_CHAIN: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_PARTIAL_CHAIN); + break; + case OPT_V_NO_ALT_CHAINS: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_NO_ALT_CHAINS); + break; + case OPT_V_NO_CHECK_TIME: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_NO_CHECK_TIME); + break; + case OPT_V_ALLOW_PROXY_CERTS: + X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_ALLOW_PROXY_CERTS); + break; + } + return 1; + +} + +/* + * Parse the next flag (and value if specified), return 0 if done, -1 on + * error, otherwise the flag's retval. + */ +int opt_next(void) +{ + char *p; + const OPTIONS *o; + int ival; + long lval; + unsigned long ulval; + ossl_intmax_t imval; + ossl_uintmax_t umval; + + /* Look at current arg; at end of the list? */ + arg = NULL; + p = argv[opt_index]; + if (p == NULL) + return 0; + + /* If word doesn't start with a -, we're done. */ + if (*p != '-') + return 0; + + /* Hit "--" ? We're done. */ + opt_index++; + if (strcmp(p, "--") == 0) + return 0; + + /* Allow -nnn and --nnn */ + if (*++p == '-') + p++; + flag = p - 1; + + /* If we have --flag=foo, snip it off */ + if ((arg = strchr(p, '=')) != NULL) + *arg++ = '\0'; + for (o = opts; o->name; ++o) { + /* If not this option, move on to the next one. */ + if (strcmp(p, o->name) != 0) + continue; + + /* If it doesn't take a value, make sure none was given. */ + if (o->valtype == 0 || o->valtype == '-') { + if (arg) { + BIO_printf(bio_err, + "%s: Option -%s does not take a value\n", prog, p); + return -1; + } + return o->retval; + } + + /* Want a value; get the next param if =foo not used. */ + if (arg == NULL) { + if (argv[opt_index] == NULL) { + BIO_printf(bio_err, + "%s: Option -%s needs a value\n", prog, o->name); + return -1; + } + arg = argv[opt_index++]; + } + + /* Syntax-check value. */ + switch (o->valtype) { + default: + case 's': + /* Just a string. */ + break; + case '/': + if (app_isdir(arg) >= 0) + break; + BIO_printf(bio_err, "%s: Not a directory: %s\n", prog, arg); + return -1; + case '<': + /* Input file. */ + if (strcmp(arg, "-") == 0 || app_access(arg, R_OK) >= 0) + break; + BIO_printf(bio_err, + "%s: Cannot open input file %s, %s\n", + prog, arg, strerror(errno)); + return -1; + case '>': + /* Output file. */ + if (strcmp(arg, "-") == 0 || app_access(arg, W_OK) >= 0 || errno == ENOENT) + break; + BIO_printf(bio_err, + "%s: Cannot open output file %s, %s\n", + prog, arg, strerror(errno)); + return -1; + case 'p': + case 'n': + if (!opt_int(arg, &ival) + || (o->valtype == 'p' && ival <= 0)) { + BIO_printf(bio_err, + "%s: Non-positive number \"%s\" for -%s\n", + prog, arg, o->name); + return -1; + } + break; + case 'M': + if (!opt_imax(arg, &imval)) { + BIO_printf(bio_err, + "%s: Invalid number \"%s\" for -%s\n", + prog, arg, o->name); + return -1; + } + break; + case 'U': + if (!opt_umax(arg, &umval)) { + BIO_printf(bio_err, + "%s: Invalid number \"%s\" for -%s\n", + prog, arg, o->name); + return -1; + } + break; + case 'l': + if (!opt_long(arg, &lval)) { + BIO_printf(bio_err, + "%s: Invalid number \"%s\" for -%s\n", + prog, arg, o->name); + return -1; + } + break; + case 'u': + if (!opt_ulong(arg, &ulval)) { + BIO_printf(bio_err, + "%s: Invalid number \"%s\" for -%s\n", + prog, arg, o->name); + return -1; + } + break; + case 'c': + case 'E': + case 'F': + case 'f': + if (opt_format(arg, + o->valtype == 'c' ? OPT_FMT_PDS : + o->valtype == 'E' ? OPT_FMT_PDE : + o->valtype == 'F' ? OPT_FMT_PEMDER + : OPT_FMT_ANY, &ival)) + break; + BIO_printf(bio_err, + "%s: Invalid format \"%s\" for -%s\n", + prog, arg, o->name); + return -1; + } + + /* Return the flag value. */ + return o->retval; + } + if (unknown != NULL) { + dunno = p; + return unknown->retval; + } + BIO_printf(bio_err, "%s: Option unknown option -%s\n", prog, p); + return -1; +} + +/* Return the most recent flag parameter. */ +char *opt_arg(void) +{ + return arg; +} + +/* Return the most recent flag. */ +char *opt_flag(void) +{ + return flag; +} + +/* Return the unknown option. */ +char *opt_unknown(void) +{ + return dunno; +} + +/* Return the rest of the arguments after parsing flags. */ +char **opt_rest(void) +{ + return &argv[opt_index]; +} + +/* How many items in remaining args? */ +int opt_num_rest(void) +{ + int i = 0; + char **pp; + + for (pp = opt_rest(); *pp; pp++, i++) + continue; + return i; +} + +/* Return a string describing the parameter type. */ +static const char *valtype2param(const OPTIONS *o) +{ + switch (o->valtype) { + case 0: + case '-': + return ""; + case 's': + return "val"; + case '/': + return "dir"; + case '<': + return "infile"; + case '>': + return "outfile"; + case 'p': + return "+int"; + case 'n': + return "int"; + case 'l': + return "long"; + case 'u': + return "ulong"; + case 'E': + return "PEM|DER|ENGINE"; + case 'F': + return "PEM|DER"; + case 'f': + return "format"; + case 'M': + return "intmax"; + case 'U': + return "uintmax"; + } + return "parm"; +} + +void opt_help(const OPTIONS *list) +{ + const OPTIONS *o; + int i; + int standard_prolog; + int width = 5; + char start[80 + 1]; + char *p; + const char *help; + + /* Starts with its own help message? */ + standard_prolog = list[0].name != OPT_HELP_STR; + + /* Find the widest help. */ + for (o = list; o->name; o++) { + if (o->name == OPT_MORE_STR) + continue; + i = 2 + (int)strlen(o->name); + if (o->valtype != '-') + i += 1 + strlen(valtype2param(o)); + if (i < MAX_OPT_HELP_WIDTH && i > width) + width = i; + assert(i < (int)sizeof(start)); + } + + if (standard_prolog) + BIO_printf(bio_err, "Usage: %s [options]\nValid options are:\n", + prog); + + /* Now let's print. */ + for (o = list; o->name; o++) { + help = o->helpstr ? o->helpstr : "(No additional info)"; + if (o->name == OPT_HELP_STR) { + BIO_printf(bio_err, help, prog); + continue; + } + + /* Pad out prefix */ + memset(start, ' ', sizeof(start) - 1); + start[sizeof(start) - 1] = '\0'; + + if (o->name == OPT_MORE_STR) { + /* Continuation of previous line; pad and print. */ + start[width] = '\0'; + BIO_printf(bio_err, "%s %s\n", start, help); + continue; + } + + /* Build up the "-flag [param]" part. */ + p = start; + *p++ = ' '; + *p++ = '-'; + if (o->name[0]) + p += strlen(strcpy(p, o->name)); + else + *p++ = '*'; + if (o->valtype != '-') { + *p++ = ' '; + p += strlen(strcpy(p, valtype2param(o))); + } + *p = ' '; + if ((int)(p - start) >= MAX_OPT_HELP_WIDTH) { + *p = '\0'; + BIO_printf(bio_err, "%s\n", start); + memset(start, ' ', sizeof(start)); + } + start[width] = '\0'; + BIO_printf(bio_err, "%s %s\n", start, help); + } +} + +#ifdef COMPILE_STANDALONE_TEST_DRIVER +# include + +typedef enum OPTION_choice { + OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, + OPT_IN, OPT_INFORM, OPT_OUT, OPT_COUNT, OPT_U, OPT_FLAG, + OPT_STR, OPT_NOTUSED +} OPTION_CHOICE; + +static OPTIONS options[] = { + {OPT_HELP_STR, 1, '-', "Usage: %s flags\n"}, + {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, + {"help", OPT_HELP, '-', "Display this summary"}, + {"in", OPT_IN, '<', "input file"}, + {OPT_MORE_STR, 1, '-', "more detail about input"}, + {"inform", OPT_INFORM, 'f', "input file format; defaults to pem"}, + {"out", OPT_OUT, '>', "output file"}, + {"count", OPT_COUNT, 'p', "a counter greater than zero"}, + {"u", OPT_U, 'u', "an unsigned number"}, + {"flag", OPT_FLAG, 0, "just some flag"}, + {"str", OPT_STR, 's', "the magic word"}, + {"areallyverylongoption", OPT_HELP, '-', "long way for help"}, + {NULL} +}; + +BIO *bio_err; + +int app_isdir(const char *name) +{ + struct stat sb; + + return name != NULL && stat(name, &sb) >= 0 && S_ISDIR(sb.st_mode); +} + +int main(int ac, char **av) +{ + OPTION_CHOICE o; + char **rest; + char *prog; + + bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT); + + prog = opt_init(ac, av, options); + while ((o = opt_next()) != OPT_EOF) { + switch (c) { + case OPT_NOTUSED: + case OPT_EOF: + case OPT_ERR: + printf("%s: Usage error; try -help.\n", prog); + return 1; + case OPT_HELP: + opt_help(options); + return 0; + case OPT_IN: + printf("in %s\n", opt_arg()); + break; + case OPT_INFORM: + printf("inform %s\n", opt_arg()); + break; + case OPT_OUT: + printf("out %s\n", opt_arg()); + break; + case OPT_COUNT: + printf("count %s\n", opt_arg()); + break; + case OPT_U: + printf("u %s\n", opt_arg()); + break; + case OPT_FLAG: + printf("flag\n"); + break; + case OPT_STR: + printf("str %s\n", opt_arg()); + break; + } + } + argc = opt_num_rest(); + argv = opt_rest(); + + printf("args = %d\n", argc); + if (argc) + while (*argv) + printf(" %s\n", *argv++); + return 0; +} +#endif -- cgit v1.2.3