1 /* 2 * Copyright (c) 2002,2004 Damien Miller <djm (at) 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 #elif defined(HAVE_GETPEERUCRED) 41 42 #ifdef HAVE_UCRED_H 43 # include <ucred.h> 44 #endif 45 46 int 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 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
