128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
/* $NetBSD: what.c,v 1.11 2011/09/06 18:45:49 joerg Exp $ */
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/*
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* Copyright (c) 1980, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1980, 1988, 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)what.c 8.1 (Berkeley) 6/6/93";
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#endif
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__RCSID("$NetBSD: what.c,v 1.11 2011/09/06 18:45:49 joerg Exp $");
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#endif /* not lint */
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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static void search(void);
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__dead static void usage(void);
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static int matches;
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static int sflag;
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/*
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* what
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*/
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/* ARGSUSED */
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int
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main(int argc, char **argv)
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{
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int c;
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(void)setlocale(LC_ALL, "");
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matches = sflag = 0;
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while ((c = getopt(argc, argv, "s")) != -1) {
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switch (c) {
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case 's':
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sflag = 1;
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break;
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case '?':
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc < 1) {
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usage();
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} else do {
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if (freopen(*argv, "r", stdin) == NULL) {
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perror(*argv);
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exit(matches ? EXIT_SUCCESS : 1);
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}
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printf("%s\n", *argv);
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search();
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} while (*++argv != NULL);
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/* Note: the standard explicitly specifies an exit status of 1. */
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exit(matches ? EXIT_SUCCESS : 1);
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/* NOTREACHED */
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}
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static void
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search(void)
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{
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int c;
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while ((c = getchar()) != EOF) {
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loop: if (c != '@')
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continue;
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if ((c = getchar()) != '(')
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goto loop;
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if ((c = getchar()) != '#')
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goto loop;
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if ((c = getchar()) != ')')
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goto loop;
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putchar('\t');
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while ((c = getchar()) != EOF && c != '\0' && c != '"' &&
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c != '>' && c != '\n' && c != '\\')
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putchar(c);
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putchar('\n');
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matches++;
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if (sflag)
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break;
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}
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}
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static void
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usage(void)
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{
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(void)fprintf(stderr, "usage: what [-s] file ...\n");
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exit(1);
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}
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