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
getpeereid(int s,uid_t * euid,gid_t * gid)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 #elif defined(HAVE_GETPEERUCRED)
41
42 #ifdef HAVE_UCRED_H
43 # include <ucred.h>
44 #endif
45
46 int
getpeereid(int s,uid_t * euid,gid_t * gid)47 getpeereid(int s, uid_t *euid, gid_t *gid)
48 {
49 ucred_t *ucred = NULL;
50
51 if (getpeerucred(s, &ucred) == -1)
52 return (-1);
53 if ((*euid = ucred_geteuid(ucred)) == -1)
54 return (-1);
55 if ((*gid = ucred_getrgid(ucred)) == -1)
56 return (-1);
57
58 ucred_free(ucred);
59
60 return (0);
61 }
62 #else
63 int
getpeereid(int s,uid_t * euid,gid_t * gid)64 getpeereid(int s, uid_t *euid, gid_t *gid)
65 {
66 *euid = geteuid();
67 *gid = getgid();
68
69 return (0);
70 }
71 #endif /* defined(SO_PEERCRED) */
72
73 #endif /* !defined(HAVE_GETPEEREID) */
74