tmux/compat/getpeereid.c

41 lines
1.2 KiB
C
Raw Normal View History

2022-03-08 11:02:17 +00:00
/*
* Copyright (c) 2022 Nicholas Marriott <nicholas.marriott@gmail.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 MIND, 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 <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include "compat.h"
int
getpeereid(int s, uid_t *uid, gid_t *gid)
{
#ifdef HAVE_SO_PEERCRED
struct ucred uc;
int len = sizeof uc;
if (getsockopt(s, SOL_SOCKET, SO_PEERCRED, &uc, &len) == -1)
return (-1);
*uid = uc.uid;
*gid = uc.gid;
return (0);
#else
errno = EOPNOTSUPP;
return (-1);
#endif
}