1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5 *                      and is licensed under the                       *
6 *                 Eclipse Public License, Version 1.0                  *
7 *                    by AT&T Intellectual Property                     *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *          http://www.eclipse.org/org/documents/epl-v10.html           *
11 *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
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  * Glenn Fowler
25  * AT&T Bell Laboratories
26  *
27  * st_dev formatter
28  */
29 
30 #include <ast.h>
31 #include <ctype.h>
32 #include <ls.h>
33 
34 char*
fmtdev(struct stat * st)35 fmtdev(struct stat* st)
36 {
37 	char*		buf;
38 	unsigned long	mm;
39 	unsigned int	ma;
40 	unsigned int	mi;
41 	int		z;
42 
43 	mm = (S_ISBLK(st->st_mode) || S_ISCHR(st->st_mode)) ? idevice(st) : st->st_dev;
44 	ma = major(mm);
45 	mi = minor(mm);
46 	buf = fmtbuf(z = 17);
47 	if (ma == '#' && isalnum(mi))
48 	{
49 		/*
50 		 * Plan? Nein!
51 		 */
52 
53 		buf[0] = ma;
54 		buf[1] = mi;
55 		buf[2] = 0;
56 	}
57 	else
58 		sfsprintf(buf, z, "%03d,%03d", ma, mi);
59 	return buf;
60 }
61