usr/src/lib/libbc/libc/sys/common/_access.c

   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 <sys/fcntl.h>
  29 #include <unistd.h>
  30 #include <sys/param.h>
  31
  32 int
  33 access_com(char *path, int mode)
  34 {
  35         if (strcmp(path, "/etc/mtab") == 0 ||
  36             strcmp(path, "/etc/fstab") == 0) {
  37                 if (mode == W_OK || mode == X_OK)
  38                         return (-1);
  39                 else
  40                         return (0);
  41         }
  42
  43         if (strcmp(path, "/etc/utmp") == 0 ||
  44             strcmp(path, "/var/adm/utmp") == 0)
  45                 path = "/var/adm/utmpx";
  46         else if (strcmp(path, "/var/adm/wtmp") == 0)
  47                 path = "/var/adm/wtmpx";
  48
  49         return (_syscall(SYS_faccessat, AT_FDCWD, path, mode, 0));
  50 }