_creat.c revision 8fd04b8338ed5093ec2d1e668fa620b7de44c177
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/syscall.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/param.h>
#include "compat.h" /* for UTMPX_MAGIC_FLAG */
#define CREATFLAGS (O_WRONLY | O_CREAT | O_TRUNC)
int
creat_com(char *path, int mode)
{
int fd;
if (strcmp(path, "/etc/mtab") == 0 ||
strcmp(path, "/etc/fstab") == 0) {
errno = ENOENT;
return (-1);
}
if (strcmp(path, "/var/adm/wtmp") == 0) {
if ((fd = _syscall(SYS_openat, AT_FDCWD,
"/var/adm/wtmpx", CREATFLAGS, mode)) >= 0)
fd_add(fd, UTMPX_MAGIC_FLAG);
return (fd);
}
if (strcmp(path, "/etc/utmp") == 0 ||
strcmp(path, "/var/adm/utmp") == 0) {
if ((fd = _syscall(SYS_openat, AT_FDCWD,
"/var/adm/utmpx", CREATFLAGS, mode)) >= 0)
fd_add(fd, UTMPX_MAGIC_FLAG);
return (fd);
}
return (_syscall(SYS_openat, AT_FDCWD, path, CREATFLAGS, mode));
}