/*
* Copyright (c) 2013 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include <sys/types.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif /* STDC_HEADERS */
#include <grp.h>
#define DEFAULT_TEXT_DOMAIN "sudo"
#include "gettext.h" /* must be included before missing.h */
#include "missing.h"
#include "alloc.h"
#include "fatal.h"
#include "sudo_debug.h"
#include "sudo_util.h"
/*
* Parse a comma-separated list of gids into an allocated array of GETGROUPS_T.
* If a pointer to the base gid is specified, it is stored as the first element
* in the array.
* Returns the number of gids in the allocated array.
* Calls fatalx() on error.
*/
int
parse_gid_list(const char *gidstr, const gid_t *basegid, GETGROUPS_T **gidsp)
{
int ngids = 0;
GETGROUPS_T *gids;
const char *cp = gidstr;
const char *errstr;
char *ep;
debug_decl(atoid, SUDO_DEBUG_UTIL)
/* Count groups. */
if (*cp != '\0') {
ngids++;
do {
if (*cp++ == ',')
ngids++;
} while (*cp != '\0');
}
/* Base gid is optional. */
if (basegid != NULL)
ngids++;
/* Allocate and fill in array. */
if (ngids != 0) {
gids = emalloc2(ngids, sizeof(GETGROUPS_T));
ngids = 0;
if (basegid != NULL)
gids[ngids++] = *basegid;
cp = gidstr;
do {
gids[ngids] = (GETGROUPS_T) atoid(cp, ",", &ep, &errstr);
if (errstr != NULL) {
warningx(U_("%s: %s"), cp, U_(errstr));
free(gids);
debug_return_int(-1);
}
if (basegid == NULL || gids[ngids] != *basegid)
ngids++;
cp = ep + 1;
} while (*ep != '\0');
*gidsp = gids;
}
debug_return_int(ngids);
}
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>