1/* $NetBSD: getpeereid.c,v 1.3 2006/09/28 21:22:14 christos Exp $ */ 2 3/* 4 * Copyright (c) 2002 Damien Miller. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include "includes.h" 28#include "getpeereid.h" 29#include <unistd.h> 30 31__RCSID("$NetBSD: getpeereid.c,v 1.3 2006/09/28 21:22:14 christos Exp $"); 32 33#if defined(SO_PEERCRED) 34int 35getpeereid(int s, uid_t *euid, gid_t *gid) 36{ 37 struct ucred cred; 38 socklen_t len = sizeof(cred); 39 40 if (getsockopt(s, SOL_SOCKET, SO_PEERCRED, &cred, &len) < 0) 41 return (-1); 42 *euid = cred.uid; 43 *gid = cred.gid; 44 45 return (0); 46} 47#else 48int 49getpeereid(int s, uid_t *euid, gid_t *gid) 50{ 51 *euid = geteuid(); 52 *gid = getgid(); 53 54 return (0); 55} 56#endif /* defined(SO_PEERCRED) */ 57