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Diffstat (limited to 'Utilities/cmlibarchive/cpio/cmdline.c')
| -rw-r--r-- | Utilities/cmlibarchive/cpio/cmdline.c | 369 |
1 files changed, 0 insertions, 369 deletions
diff --git a/Utilities/cmlibarchive/cpio/cmdline.c b/Utilities/cmlibarchive/cpio/cmdline.c deleted file mode 100644 index b6ffb2e..0000000 --- a/Utilities/cmlibarchive/cpio/cmdline.c +++ /dev/null @@ -1,369 +0,0 @@ -/*- - * Copyright (c) 2003-2007 Tim Kientzle - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer - * in this position and unchanged. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - - -#include "cpio_platform.h" -__FBSDID("$FreeBSD: src/usr.bin/cpio/cmdline.c,v 1.5 2008/12/06 07:30:40 kientzle Exp $"); - -#ifdef HAVE_ERRNO_H -#include <errno.h> -#endif -#ifdef HAVE_GRP_H -#include <grp.h> -#endif -#ifdef HAVE_PWD_H -#include <pwd.h> -#endif -#include <stdio.h> -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#ifdef HAVE_STRING_H -#include <string.h> -#endif - -#include "cpio.h" -#include "err.h" - -/* - * Short options for cpio. Please keep this sorted. - */ -static const char *short_options = "0AaBC:cdE:F:f:H:hI:iJjLlmnO:opR:rtuvW:yZz"; - -/* - * Long options for cpio. Please keep this sorted. - */ -static const struct option { - const char *name; - int required; /* 1 if this option requires an argument */ - int equivalent; /* Equivalent short option. */ -} cpio_longopts[] = { - { "create", 0, 'o' }, - { "extract", 0, 'i' }, - { "file", 1, 'F' }, - { "format", 1, 'H' }, - { "help", 0, 'h' }, - { "insecure", 0, OPTION_INSECURE }, - { "link", 0, 'l' }, - { "list", 0, 't' }, - { "lzma", 0, OPTION_LZMA }, - { "make-directories", 0, 'd' }, - { "no-preserve-owner", 0, OPTION_NO_PRESERVE_OWNER }, - { "null", 0, '0' }, - { "numeric-uid-gid", 0, 'n' }, - { "owner", 1, 'R' }, - { "pass-through", 0, 'p' }, - { "preserve-modification-time", 0, 'm' }, - { "preserve-owner", 0, OPTION_PRESERVE_OWNER }, - { "quiet", 0, OPTION_QUIET }, - { "unconditional", 0, 'u' }, - { "verbose", 0, 'v' }, - { "version", 0, OPTION_VERSION }, - { "xz", 0, 'J' }, - { NULL, 0, 0 } -}; - -/* - * I used to try to select platform-provided getopt() or - * getopt_long(), but that caused a lot of headaches. In particular, - * I couldn't consistently use long options in the test harness - * because not all platforms have getopt_long(). That in turn led to - * overuse of the -W hack in the test harness, which made it rough to - * run the test harness against GNU cpio. (I periodically run the - * test harness here against GNU cpio as a sanity-check. Yes, - * I've found a couple of bugs in GNU cpio that way.) - */ -int -cpio_getopt(struct cpio *cpio) -{ - enum { state_start = 0, state_next_word, state_short, state_long }; - static int state = state_start; - static char *opt_word; - - const struct option *popt, *match = NULL, *match2 = NULL; - const char *p, *long_prefix = "--"; - size_t optlength; - int opt = '?'; - int required = 0; - - cpio->optarg = NULL; - - /* First time through, initialize everything. */ - if (state == state_start) { - /* Skip program name. */ - ++cpio->argv; - --cpio->argc; - state = state_next_word; - } - - /* - * We're ready to look at the next word in argv. - */ - if (state == state_next_word) { - /* No more arguments, so no more options. */ - if (cpio->argv[0] == NULL) - return (-1); - /* Doesn't start with '-', so no more options. */ - if (cpio->argv[0][0] != '-') - return (-1); - /* "--" marks end of options; consume it and return. */ - if (strcmp(cpio->argv[0], "--") == 0) { - ++cpio->argv; - --cpio->argc; - return (-1); - } - /* Get next word for parsing. */ - opt_word = *cpio->argv++; - --cpio->argc; - if (opt_word[1] == '-') { - /* Set up long option parser. */ - state = state_long; - opt_word += 2; /* Skip leading '--' */ - } else { - /* Set up short option parser. */ - state = state_short; - ++opt_word; /* Skip leading '-' */ - } - } - - /* - * We're parsing a group of POSIX-style single-character options. - */ - if (state == state_short) { - /* Peel next option off of a group of short options. */ - opt = *opt_word++; - if (opt == '\0') { - /* End of this group; recurse to get next option. */ - state = state_next_word; - return cpio_getopt(cpio); - } - - /* Does this option take an argument? */ - p = strchr(short_options, opt); - if (p == NULL) - return ('?'); - if (p[1] == ':') - required = 1; - - /* If it takes an argument, parse that. */ - if (required) { - /* If arg is run-in, opt_word already points to it. */ - if (opt_word[0] == '\0') { - /* Otherwise, pick up the next word. */ - opt_word = *cpio->argv; - if (opt_word == NULL) { - lafe_warnc(0, - "Option -%c requires an argument", - opt); - return ('?'); - } - ++cpio->argv; - --cpio->argc; - } - if (opt == 'W') { - state = state_long; - long_prefix = "-W "; /* For clearer errors. */ - } else { - state = state_next_word; - cpio->optarg = opt_word; - } - } - } - - /* We're reading a long option, including -W long=arg convention. */ - if (state == state_long) { - /* After this long option, we'll be starting a new word. */ - state = state_next_word; - - /* Option name ends at '=' if there is one. */ - p = strchr(opt_word, '='); - if (p != NULL) { - optlength = (size_t)(p - opt_word); - cpio->optarg = (char *)(uintptr_t)(p + 1); - } else { - optlength = strlen(opt_word); - } - - /* Search the table for an unambiguous match. */ - for (popt = cpio_longopts; popt->name != NULL; popt++) { - /* Short-circuit if first chars don't match. */ - if (popt->name[0] != opt_word[0]) - continue; - /* If option is a prefix of name in table, record it.*/ - if (strncmp(opt_word, popt->name, optlength) == 0) { - match2 = match; /* Record up to two matches. */ - match = popt; - /* If it's an exact match, we're done. */ - if (strlen(popt->name) == optlength) { - match2 = NULL; /* Forget the others. */ - break; - } - } - } - - /* Fail if there wasn't a unique match. */ - if (match == NULL) { - lafe_warnc(0, - "Option %s%s is not supported", - long_prefix, opt_word); - return ('?'); - } - if (match2 != NULL) { - lafe_warnc(0, - "Ambiguous option %s%s (matches --%s and --%s)", - long_prefix, opt_word, match->name, match2->name); - return ('?'); - } - - /* We've found a unique match; does it need an argument? */ - if (match->required) { - /* Argument required: get next word if necessary. */ - if (cpio->optarg == NULL) { - cpio->optarg = *cpio->argv; - if (cpio->optarg == NULL) { - lafe_warnc(0, - "Option %s%s requires an argument", - long_prefix, match->name); - return ('?'); - } - ++cpio->argv; - --cpio->argc; - } - } else { - /* Argument forbidden: fail if there is one. */ - if (cpio->optarg != NULL) { - lafe_warnc(0, - "Option %s%s does not allow an argument", - long_prefix, match->name); - return ('?'); - } - } - return (match->equivalent); - } - - return (opt); -} - - -/* - * Parse the argument to the -R or --owner flag. - * - * The format is one of the following: - * <username|uid> - Override user but not group - * <username>: - Override both, group is user's default group - * <uid>: - Override user but not group - * <username|uid>:<groupname|gid> - Override both - * :<groupname|gid> - Override group but not user - * - * Where uid/gid are decimal representations and groupname/username - * are names to be looked up in system database. Note that we try - * to look up an argument as a name first, then try numeric parsing. - * - * A period can be used instead of the colon. - * - * Sets uid/gid return as appropriate, -1 indicates uid/gid not specified. - * - * Returns NULL if no error, otherwise returns error string for display. - * - */ -const char * -owner_parse(const char *spec, int *uid, int *gid) -{ - static char errbuff[128]; - const char *u, *ue, *g; - - *uid = -1; - *gid = -1; - - if (spec[0] == '\0') - return ("Invalid empty user/group spec"); - - /* - * Split spec into [user][:.][group] - * u -> first char of username, NULL if no username - * ue -> first char after username (colon, period, or \0) - * g -> first char of group name - */ - if (*spec == ':' || *spec == '.') { - /* If spec starts with ':' or '.', then just group. */ - ue = u = NULL; - g = spec + 1; - } else { - /* Otherwise, [user] or [user][:] or [user][:][group] */ - ue = u = spec; - while (*ue != ':' && *ue != '.' && *ue != '\0') - ++ue; - g = ue; - if (*g != '\0') /* Skip : or . to find first char of group. */ - ++g; - } - - if (u != NULL) { - /* Look up user: ue is first char after end of user. */ - char *user; - struct passwd *pwent; - - user = (char *)malloc(ue - u + 1); - if (user == NULL) - return ("Couldn't allocate memory"); - memcpy(user, u, ue - u); - user[ue - u] = '\0'; - if ((pwent = getpwnam(user)) != NULL) { - *uid = pwent->pw_uid; - if (*ue != '\0') - *gid = pwent->pw_gid; - } else { - char *end; - errno = 0; - *uid = strtoul(user, &end, 10); - if (errno || *end != '\0') { - snprintf(errbuff, sizeof(errbuff), - "Couldn't lookup user ``%s''", user); - errbuff[sizeof(errbuff) - 1] = '\0'; - return (errbuff); - } - } - free(user); - } - - if (*g != '\0') { - struct group *grp; - if ((grp = getgrnam(g)) != NULL) { - *gid = grp->gr_gid; - } else { - char *end; - errno = 0; - *gid = strtoul(g, &end, 10); - if (errno || *end != '\0') { - snprintf(errbuff, sizeof(errbuff), - "Couldn't lookup group ``%s''", g); - errbuff[sizeof(errbuff) - 1] = '\0'; - return (errbuff); - } - } - } - return (NULL); -} |