1 /* $NetBSD: what.c,v 1.16 2025/04/12 10:09:15 rin Exp $ */
2
3 /*
4 * Copyright (c) 1980, 1988, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #if HAVE_NBTOOL_CONFIG_H
33 #include "nbtool_config.h"
34 #endif
35
36 #include <sys/cdefs.h>
37 #ifndef lint
38 __COPYRIGHT("@(#) Copyright (c) 1980, 1988, 1993\
39 The Regents of the University of California. All rights reserved.");
40 #endif /* not lint */
41
42 #ifndef lint
43 #if 0
44 static char sccsid[] = "@(#)what.c 8.1 (Berkeley) 6/6/93";
45 #endif
46 __RCSID("$NetBSD: what.c,v 1.16 2025/04/12 10:09:15 rin Exp $");
47 #endif /* not lint */
48
49 #include <locale.h>
50 #include <err.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <unistd.h>
54
55 static void search(void);
56 __dead static void usage(void);
57
58 static int matches;
59 static int sflag;
60
61 /*
62 * what
63 */
64 int
main(int argc,char ** argv)65 main(int argc, char **argv)
66 {
67 int c;
68
69 (void)setlocale(LC_ALL, "");
70
71 matches = sflag = 0;
72 while ((c = getopt(argc, argv, "s")) != -1) {
73 switch (c) {
74 case 's':
75 sflag = 1;
76 break;
77 case '?':
78 default:
79 usage();
80 }
81 }
82 argc -= optind;
83 argv += optind;
84
85 if (argc < 1) {
86 usage();
87 } else do {
88 if (freopen(*argv, "r", stdin) == NULL) {
89 warn("Cannot open `%s'", *argv);
90 break;
91 }
92 printf("%s:\n", *argv);
93 search();
94 } while (*++argv != NULL);
95
96 /* Note: the standard explicitly specifies an exit status of 0/1. */
97 return matches ? 0 : 1;
98 }
99
100 static void
search(void)101 search(void)
102 {
103 int c;
104
105 while ((c = getchar()) != EOF) {
106 loop: if (c != '@')
107 continue;
108 if ((c = getchar()) != '(')
109 goto loop;
110 if ((c = getchar()) != '#')
111 goto loop;
112 if ((c = getchar()) != ')')
113 goto loop;
114 putchar('\t');
115 while ((c = getchar()) != EOF && c != '\0' && c != '"' &&
116 c != '>' && c != '\n' && c != '\\')
117 putchar(c);
118 putchar('\n');
119 matches++;
120 if (sflag)
121 break;
122 }
123 }
124
125 static void
usage(void)126 usage(void)
127 {
128
129 (void)fprintf(stderr, "Usage: %s [-s] file ...\n", getprogname());
130 exit(1);
131 }
132