xref: /onnv-gate/usr/src/lib/libc/port/sys/getpeerucred.c (revision 6812:febeba71273d)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*6812Sraf  * Common Development and Distribution License (the "License").
6*6812Sraf  * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate  *
80Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate  * See the License for the specific language governing permissions
110Sstevel@tonic-gate  * and limitations under the License.
120Sstevel@tonic-gate  *
130Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate  *
190Sstevel@tonic-gate  * CDDL HEADER END
200Sstevel@tonic-gate  */
21*6812Sraf 
220Sstevel@tonic-gate /*
23*6812Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
240Sstevel@tonic-gate  * Use is subject to license terms.
250Sstevel@tonic-gate  */
260Sstevel@tonic-gate 
270Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
280Sstevel@tonic-gate 
29*6812Sraf #pragma weak _getpeerucred = getpeerucred
300Sstevel@tonic-gate 
31*6812Sraf #include "lint.h"
320Sstevel@tonic-gate 
330Sstevel@tonic-gate #include <sys/types.h>
340Sstevel@tonic-gate #include <sys/syscall.h>
350Sstevel@tonic-gate #include <ucred.h>
360Sstevel@tonic-gate #include <sys/ucred.h>
370Sstevel@tonic-gate 
380Sstevel@tonic-gate int
getpeerucred(int fd,ucred_t ** ucp)390Sstevel@tonic-gate getpeerucred(int fd, ucred_t **ucp)
400Sstevel@tonic-gate {
410Sstevel@tonic-gate 	ucred_t *uc = *ucp;
420Sstevel@tonic-gate 
430Sstevel@tonic-gate 	if (uc == NULL) {
440Sstevel@tonic-gate 		uc = _ucred_alloc();
450Sstevel@tonic-gate 		if (uc == NULL)
460Sstevel@tonic-gate 			return (-1);
470Sstevel@tonic-gate 	}
480Sstevel@tonic-gate 
490Sstevel@tonic-gate 	if (syscall(SYS_ucredsys, UCREDSYS_GETPEERUCRED, fd, uc) != 0) {
500Sstevel@tonic-gate 		if (*ucp == NULL)
510Sstevel@tonic-gate 			ucred_free(uc);
520Sstevel@tonic-gate 		return (-1);
530Sstevel@tonic-gate 	}
540Sstevel@tonic-gate 	*ucp = uc;
550Sstevel@tonic-gate 	return (0);
560Sstevel@tonic-gate }
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