is_writable.c revision 781962bace3614d057f775d40c415c05e5cd645e
/*
* 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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/stat.h>
/*
* Checks group (-g) or world (default) writeability.
* Returns as exit code: 0 = writable
* 1 = not writable
*/
int
main(int argc, char **argv)
{
int group = 0, xmode = 0;
struct stat statb;
if (argc < 2) {
printf("Usage: %s [-g] file\n", argv[0]);
return (0);
}
if (argc > 2) {
if (strcmp(argv[1], "-g") == 0) {
group = 1;
argc--;
argv++;
}
}
if (stat(*++argv, &statb) < 0) {
return (2);
}
if (group)
xmode = statb.st_mode & S_IWGRP;
else
xmode = statb.st_mode & S_IWOTH;
return (!xmode);
}