1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include "compat.h" 30 #include <errno.h> 31 #include <sys/syscall.h> 32 #include <sys/types.h> 33 #include <unistd.h> 34 35 off_t 36 lseek(int fd, off_t offset, int whence) 37 { 38 int off, ret; 39 40 if (whence < 0 || whence > 2) { 41 errno = EINVAL; 42 return (-1); 43 } 44 if (fd_get(fd) != -1) { 45 off = getmodsize(offset, sizeof (struct compat_utmp), 46 sizeof (struct utmpx)); 47 if ((ret = _syscall(SYS_lseek, fd, off, whence)) != -1) 48 ret = getmodsize(ret, sizeof (struct utmpx), 49 sizeof (struct compat_utmp)); 50 return (ret); 51 } else { 52 return (_syscall(SYS_lseek, fd, offset, whence)); 53 } 54 } 55