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/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2011-2012, 2014-2016 Todd C. Miller <Todd.Miller@sudo.ws>
*
* 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.
*/
/*
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
*/
#include <config.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include <grp.h>
#include <limits.h>
#include <sudo_compat.h>
#include <sudo_debug.h>
#include <sudo_util.h>
int
sudo_setgroups_v1(int ngids, const GETGROUPS_T *gids)
{
long maxgids;
int ret;
debug_decl(sudo_setgroups, SUDO_DEBUG_UTIL);
if (ngids < 0)
debug_return_int(-1);
ret = setgroups(ngids, (GETGROUPS_T *)gids);
if (ret == -1 && errno == EINVAL) {
/* Too many groups, try again with fewer. */
maxgids = sysconf(_SC_NGROUPS_MAX);
if (maxgids == -1)
maxgids = NGROUPS_MAX;
if (ngids > maxgids)
ret = setgroups(maxgids, (GETGROUPS_T *)gids);
}
debug_return_int(ret);
}
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