Annotation of src/usr.bin/what/what.c, Revision 1.12
1.12 ! deraadt 1: /* $OpenBSD: what.c,v 1.11 2003/07/10 00:06:52 david 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:
1.3 deraadt 33: #include <sys/types.h>
34: #include <sys/utsname.h>
1.1 deraadt 35: #include <stdio.h>
1.3 deraadt 36: #include <ctype.h>
1.5 art 37: #include <err.h>
1.11 david 38: #include <stdlib.h>
1.5 art 39: #include <string.h>
1.8 nino 40: #include <unistd.h>
1.1 deraadt 41:
1.8 nino 42: static void search(char *);
43: static void usage(void);
44:
45: static int matches;
46: static int sflag;
47:
48: extern char *__progname;
1.1 deraadt 49:
50: /*
51: * what
52: */
53: /* ARGSUSED */
54: int
1.10 deraadt 55: main(int argc, char *argv[])
1.1 deraadt 56: {
1.3 deraadt 57: struct utsname utsn;
58: char match[256];
1.8 nino 59: int c;
60:
61: matches = sflag = 0;
62: while ((c = getopt(argc, argv, "s")) != -1) {
63: switch (c) {
64: case 's':
65: sflag = 1;
66: break;
67: default:
68: usage();
69: }
70: }
71: argc -= optind;
72: argv += optind;
1.3 deraadt 73:
74: if (uname(&utsn) == -1)
75: err(1, "uname");
1.8 nino 76: strlcpy(match, utsn.sysname, sizeof match);
1.3 deraadt 77:
1.8 nino 78: if (argc < 1) {
79: usage();
80: } else do {
1.1 deraadt 81: if (!freopen(*argv, "r", stdin)) {
82: perror(*argv);
1.8 nino 83: exit(matches ? 0 : 1);
1.1 deraadt 84: }
85: printf("%s\n", *argv);
1.3 deraadt 86: search(match);
1.1 deraadt 87: } while(*++argv);
1.8 nino 88: exit(matches ? 0 : 1);
1.1 deraadt 89: }
90:
1.8 nino 91: static void
1.10 deraadt 92: search(char *match)
1.1 deraadt 93: {
1.6 mpech 94: int c;
1.3 deraadt 95: int i;
1.1 deraadt 96:
97: while ((c = getchar()) != EOF) {
1.3 deraadt 98: loop: if (c == '$') {
99: for (i = 0; match[i]; i++)
100: if ((c = getchar()) != match[i])
101: goto loop;
1.4 deraadt 102: printf("\t$%s", match);
1.3 deraadt 103: while (isprint(c = getchar()))
104: putchar(c);
105: putchar('\n');
1.8 nino 106: matches++;
107: if (sflag)
108: break;
1.3 deraadt 109: goto loop;
110: }
111: if (c != '@')
1.1 deraadt 112: continue;
113: if ((c = getchar()) != '(')
114: goto loop;
115: if ((c = getchar()) != '#')
116: goto loop;
117: if ((c = getchar()) != ')')
118: goto loop;
119: putchar('\t');
120: while ((c = getchar()) != EOF && c && c != '"' &&
1.8 nino 121: c != '>' && c != '\n' && c != '\\')
1.1 deraadt 122: putchar(c);
123: putchar('\n');
1.8 nino 124: matches++;
125: if (sflag)
126: break;
1.1 deraadt 127: }
1.8 nino 128: }
129:
130: static void
1.10 deraadt 131: usage(void)
1.8 nino 132: {
133:
134: (void)fprintf(stderr, "usage: %s [-s] file ...\n", __progname);
135: exit(1);
1.1 deraadt 136: }
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