xref: /netbsd/bin/ls/util.c (revision bf9ec67e)
1 /*	$NetBSD: util.c,v 1.22 2001/12/20 20:17:29 soren Exp $	*/
2 
3 /*
4  * Copyright (c) 1989, 1993, 1994
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Michael Fischbein.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  */
38 
39 #include <sys/cdefs.h>
40 #ifndef lint
41 #if 0
42 static char sccsid[] = "@(#)util.c	8.5 (Berkeley) 4/28/95";
43 #else
44 __RCSID("$NetBSD: util.c,v 1.22 2001/12/20 20:17:29 soren Exp $");
45 #endif
46 #endif /* not lint */
47 
48 #include <sys/types.h>
49 #include <sys/stat.h>
50 
51 #include <ctype.h>
52 #include <fts.h>
53 #include <stdio.h>
54 #include <stdlib.h>
55 #include <string.h>
56 
57 #include "ls.h"
58 #include "extern.h"
59 
60 int
61 printescaped(const char *src)
62 {
63 	unsigned char c;
64 	int n;
65 
66 	for (n = 0; (c = *src) != '\0'; ++src, ++n)
67 		if (isprint(c))
68 			(void)putchar(c);
69 		else
70 			(void)putchar('?');
71 	return n;
72 }
73 
74 void
75 usage(void)
76 {
77 	(void)fprintf(stderr,
78 	    "usage: ls [-ACFLRSTWacdfgiklmnopqrstux1] [file ...]\n");
79 	exit(EXIT_FAILURE);
80 	/* NOTREACHED */
81 }
82