xref: /freebsd/crypto/openssh/openbsd-compat/bsd-getpeereid.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1 /*
2  * Copyright (c) 2002,2004 Damien Miller <djm@mindrot.org>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include "includes.h"
18 
19 #if !defined(HAVE_GETPEEREID)
20 
21 #include <sys/types.h>
22 #include <sys/socket.h>
23 
24 #include <unistd.h>
25 
26 #if defined(SO_PEERCRED)
27 int
28 getpeereid(int s, uid_t *euid, gid_t *gid)
29 {
30 	struct ucred cred;
31 	socklen_t len = sizeof(cred);
32 
33 	if (getsockopt(s, SOL_SOCKET, SO_PEERCRED, &cred, &len) < 0)
34 		return (-1);
35 	*euid = cred.uid;
36 	*gid = cred.gid;
37 
38 	return (0);
39 }
40 #else
41 int
42 getpeereid(int s, uid_t *euid, gid_t *gid)
43 {
44 	*euid = geteuid();
45 	*gid = getgid();
46 
47 	return (0);
48 }
49 #endif /* defined(SO_PEERCRED) */
50 
51 #endif /* !defined(HAVE_GETPEEREID) */
52