str_to_mode.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 <stdio.h>
#include <string.h>
/*
* Takes a (10 char) permission string (as returned by ls -l) and prints
* the equivalent octal number.
* E.g. -rwsr-xr-- => 04754
*/
int
main(int argc, char **argv)
{
char *perm;
int result = 0;
if ((argc != 2) || (strlen(argv[1]) != 10)) {
printf("-1\n");
return (1);
}
perm = argv[1];
/* user bits */
if (perm[1] == 'r')
result = result | 00400;
if (perm[2] == 'w')
result = result | 00200;
if (perm[3] == 'x')
result = result | 00100;
else if (perm[3] == 's')
result = result | 04100;
else if (perm[3] == 'S')
result = result | 04000;
/* group bits */
if (perm[4] == 'r')
result = result | 00040;
if (perm[5] == 'w')
result = result | 00020;
if (perm[6] == 'x')
result = result | 00010;
else if (perm[6] == 's')
result = result | 02010;
else if (perm[6] == 'S')
result = result | 02000;
/* world bits */
if (perm[7] == 'r')
result = result | 00004;
if (perm[8] == 'w')
result = result | 00002;
if (perm[9] == 'x')
result = result | 00001;
else if (perm[9] == 't')
result = result | 01001;
else if (perm[9] == 'T')
result = result | 01000;
printf("%05o\n", result);
return (0);
}