8b4fbc5cc0
shared by the sudo front-end and the sudoers module. Make uid/gid parse error be fatal, not just a warning.
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/*
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* Copyright (c) 2013 Todd C. Miller <Todd.Miller@courtesan.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <config.h>
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#include <sys/types.h>
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#include <stdio.h>
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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# include <stddef.h>
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#else
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# ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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# endif
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#endif /* STDC_HEADERS */
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#include <grp.h>
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#define DEFAULT_TEXT_DOMAIN "sudo"
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#include "gettext.h"
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#include "missing.h"
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#include "alloc.h"
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#include "error.h"
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#include "sudo_debug.h"
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extern id_t atoid(const char *p, const char *sep, char **endp, const char **errstr);
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/*
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* Parse a comma-separated list of gids into an allocated array of GETGROUPS_T.
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* If a pointer to the base gid is specified, it is stored as the first element
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* in the array.
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* Returns the number of gids in the allocated array.
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* Calls fatalx() on error.
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*/
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int
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parse_gid_list(const char *gidstr, const gid_t *basegid, GETGROUPS_T **gidsp)
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{
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int ngids = 0;
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GETGROUPS_T *gids;
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const char *cp = gidstr;
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const char *errstr;
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char *ep;
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debug_decl(atoid, SUDO_DEBUG_UTIL)
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/* Count groups. */
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if (*cp != '\0') {
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ngids++;
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do {
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if (*cp++ == ',')
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ngids++;
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} while (*cp != '\0');
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}
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/* Base gid is optional. */
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if (basegid != NULL)
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ngids++;
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/* Allocate and fill in array. */
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if (ngids != 0) {
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gids = emalloc2(ngids, sizeof(GETGROUPS_T));
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ngids = 0;
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if (basegid != NULL)
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gids[ngids++] = *basegid;
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cp = gidstr;
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do {
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gids[ngids] = (GETGROUPS_T) atoid(cp, ",", &ep, &errstr);
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if (errstr != NULL) {
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warningx(_("%s: %s"), cp, _(errstr));
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free(gids);
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debug_return_int(-1);
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}
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if (basegid == NULL || gids[ngids] != *basegid)
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ngids++;
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cp = ep + 1;
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} while (*ep != '\0');
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*gidsp = gids;
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}
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debug_return_int(ngids);
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}
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