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 2010 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sys/syscall.h>
28 #include <unistd.h>
29 #include <fcntl.h>
30 #include <errno.h>
31 #include <sys/param.h>
32 #include "compat.h" /* for UTMPX_MAGIC_FLAG */
33
34 #define CREATFLAGS (O_WRONLY | O_CREAT | O_TRUNC)
35
36 int
creat_com(char * path,int mode)37 creat_com(char *path, int mode)
38 {
39 int fd;
40
41 if (strcmp(path, "/etc/mtab") == 0 ||
42 strcmp(path, "/etc/fstab") == 0) {
43 errno = ENOENT;
44 return (-1);
45 }
46 if (strcmp(path, "/var/adm/wtmp") == 0) {
47 if ((fd = _syscall(SYS_openat, AT_FDCWD,
48 "/var/adm/wtmpx", CREATFLAGS, mode)) >= 0)
49 fd_add(fd, UTMPX_MAGIC_FLAG);
50 return (fd);
51 }
52 if (strcmp(path, "/etc/utmp") == 0 ||
53 strcmp(path, "/var/adm/utmp") == 0) {
54 if ((fd = _syscall(SYS_openat, AT_FDCWD,
55 "/var/adm/utmpx", CREATFLAGS, mode)) >= 0)
56 fd_add(fd, UTMPX_MAGIC_FLAG);
57 return (fd);
58 }
59 return (_syscall(SYS_openat, AT_FDCWD, path, CREATFLAGS, mode));
60 }
61