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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1999 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <syscall.h> 30 #include <sys/errno.h> 31 32 int unlink(char *path) 33 { 34 int ret; 35 char buf[256]; 36 extern int errno; 37 char dot[2] = {'.','\n'}; 38 39 if (path == (char *) 0) { 40 errno = EFAULT; 41 return(-1); 42 } else if (strcmp(path, "") == 0) 43 path = dot; 44 45 else if (strcmp(path, "/var/adm/utmp") == 0 || 46 strcmp(path, "/var/adm/wtmp") == 0 || 47 strcmp(path, "/etc/utmp") == 0) { 48 if (strcmp(path, "/etc/utmp") == 0 || 49 strcmp(path, "/var/adm/utmp") == 0) 50 strcpy(buf, "/var/adm/utmpx"); 51 else 52 strcpy(buf, "/var/adm/wtmpx"); 53 ret = _syscall(SYS_unlink, buf); 54 } else 55 ret = _syscall(SYS_unlink, path); 56 57 return (ret); 58 } 59