Annotation of src/usr.bin/what/what.c, Revision 1.9
1.9 ! millert 1: /* $OpenBSD: what.c,v 1.8 2003/05/02 21:12:48 nino Exp $ */
1.1 deraadt 2: /* $NetBSD: what.c,v 1.4 1994/12/20 16:01:03 jtc Exp $ */
3:
4: /*
5: * Copyright (c) 1980, 1988, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.9 ! millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #ifndef lint
34: static char copyright[] =
35: "@(#) Copyright (c) 1980, 1988, 1993\n\
36: The Regents of the University of California. All rights reserved.\n";
37: #endif /* not lint */
38:
39: #ifndef lint
40: #if 0
41: static char sccsid[] = "@(#)what.c 8.1 (Berkeley) 6/6/93";
42: #endif
1.9 ! millert 43: static char rcsid[] = "$OpenBSD: what.c,v 1.8 2003/05/02 21:12:48 nino Exp $";
1.1 deraadt 44: #endif /* not lint */
45:
1.3 deraadt 46: #include <sys/types.h>
47: #include <sys/utsname.h>
1.1 deraadt 48: #include <stdio.h>
1.3 deraadt 49: #include <ctype.h>
1.5 art 50: #include <err.h>
51: #include <string.h>
1.8 nino 52: #include <unistd.h>
1.1 deraadt 53:
1.8 nino 54: static void search(char *);
55: static void usage(void);
56:
57: static int matches;
58: static int sflag;
59:
60: extern char *__progname;
1.1 deraadt 61:
62: /*
63: * what
64: */
65: /* ARGSUSED */
66: int
67: main(argc, argv)
68: int argc;
69: char **argv;
70: {
1.3 deraadt 71: struct utsname utsn;
72: char match[256];
1.8 nino 73: int c;
74:
75: matches = sflag = 0;
76: while ((c = getopt(argc, argv, "s")) != -1) {
77: switch (c) {
78: case 's':
79: sflag = 1;
80: break;
81: default:
82: usage();
83: }
84: }
85: argc -= optind;
86: argv += optind;
1.3 deraadt 87:
88: if (uname(&utsn) == -1)
89: err(1, "uname");
1.8 nino 90: strlcpy(match, utsn.sysname, sizeof match);
1.3 deraadt 91:
1.8 nino 92: if (argc < 1) {
93: usage();
94: } else do {
1.1 deraadt 95: if (!freopen(*argv, "r", stdin)) {
96: perror(*argv);
1.8 nino 97: exit(matches ? 0 : 1);
1.1 deraadt 98: }
99: printf("%s\n", *argv);
1.3 deraadt 100: search(match);
1.1 deraadt 101: } while(*++argv);
1.8 nino 102: exit(matches ? 0 : 1);
1.1 deraadt 103: }
104:
1.8 nino 105: static void
1.3 deraadt 106: search(match)
107: char *match;
1.1 deraadt 108: {
1.6 mpech 109: int c;
1.3 deraadt 110: int i;
1.1 deraadt 111:
112: while ((c = getchar()) != EOF) {
1.3 deraadt 113: loop: if (c == '$') {
114: for (i = 0; match[i]; i++)
115: if ((c = getchar()) != match[i])
116: goto loop;
1.4 deraadt 117: printf("\t$%s", match);
1.3 deraadt 118: while (isprint(c = getchar()))
119: putchar(c);
120: putchar('\n');
1.8 nino 121: matches++;
122: if (sflag)
123: break;
1.3 deraadt 124: goto loop;
125: }
126: if (c != '@')
1.1 deraadt 127: continue;
128: if ((c = getchar()) != '(')
129: goto loop;
130: if ((c = getchar()) != '#')
131: goto loop;
132: if ((c = getchar()) != ')')
133: goto loop;
134: putchar('\t');
135: while ((c = getchar()) != EOF && c && c != '"' &&
1.8 nino 136: c != '>' && c != '\n' && c != '\\')
1.1 deraadt 137: putchar(c);
138: putchar('\n');
1.8 nino 139: matches++;
140: if (sflag)
141: break;
1.1 deraadt 142: }
1.8 nino 143: }
144:
145: static void
146: usage()
147: {
148:
149: (void)fprintf(stderr, "usage: %s [-s] file ...\n", __progname);
150: exit(1);
1.1 deraadt 151: }
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