1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *           Copyright (c) 1985-2007 AT&T Knowledge Ventures            *
5 *                      and is licensed under the                       *
6 *                  Common Public License, Version 1.0                  *
7 *                      by AT&T Knowledge Ventures                      *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12 *                                                                      *
13 *              Information and Software Systems Research               *
14 *                            AT&T Research                             *
15 *                           Florham Park NJ                            *
16 *                                                                      *
17 *                 Glenn Fowler <gsf@research.att.com>                  *
18 *                  David Korn <dgk@research.att.com>                   *
19 *                   Phong Vo <kpv@research.att.com>                    *
20 *                                                                      *
21 ***********************************************************************/
22 #pragma prototyped
23 /*
24  * G. S. Fowler
25  * AT&T Bell Laboratories
26  *
27  * return modex canonical representation of file mode bits
28  * given ls -l style file mode string
29  */
30 
31 #include "modelib.h"
32 
33 int
34 strmode(register const char* s)
35 {
36 	register int		c;
37 	register char*		t;
38 	register struct modeop*	p;
39 	int			mode;
40 
41 	mode = 0;
42 	for (p = modetab; (c = *s++) && p < &modetab[MODELEN]; p++)
43 		for (t = p->name; *t; t++)
44 			if (*t == c)
45 			{
46 				c = t - p->name;
47 				mode |= (p->mask1 & (c << p->shift1)) | (p->mask2 & (c << p->shift2));
48 				break;
49 			}
50 	return(mode);
51 }
52