unlink.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1999 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <syscall.h>
#include <sys/errno.h>
int unlink(char *path)
{
int ret;
char buf[256];
extern int errno;
char dot[2] = {'.','\n'};
if (path == (char *) 0) {
errno = EFAULT;
return(-1);
} else if (strcmp(path, "") == 0)
path = dot;
else if (strcmp(path, "/var/adm/utmp") == 0 ||
strcmp(path, "/var/adm/wtmp") == 0 ||
strcmp(path, "/etc/utmp") == 0) {
if (strcmp(path, "/etc/utmp") == 0 ||
strcmp(path, "/var/adm/utmp") == 0)
strcpy(buf, "/var/adm/utmpx");
else
strcpy(buf, "/var/adm/wtmpx");
ret = _syscall(SYS_unlink, buf);
} else
ret = _syscall(SYS_unlink, path);
return (ret);
}