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File: [cvs.NetBSD.org] / src / usr.bin / what / what.c (download)

Revision 1.9, Thu Aug 7 11:17:16 2003 UTC (16 years, 6 months ago) by agc
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, netbsd-3-base, netbsd-3-1-RELEASE, netbsd-3-1-RC4, netbsd-3-1-RC3, netbsd-3-1-RC2, netbsd-3-1-RC1, netbsd-3-1-1-RELEASE, netbsd-3-1, netbsd-3-0-RELEASE, netbsd-3-0-RC6, netbsd-3-0-RC5, netbsd-3-0-RC4, netbsd-3-0-RC3, netbsd-3-0-RC2, netbsd-3-0-RC1, netbsd-3-0-3-RELEASE, netbsd-3-0-2-RELEASE, netbsd-3-0-1-RELEASE, netbsd-3-0, netbsd-3, netbsd-2-base, netbsd-2-1-RELEASE, netbsd-2-1-RC6, netbsd-2-1-RC5, netbsd-2-1-RC4, netbsd-2-1-RC3, netbsd-2-1-RC2, netbsd-2-1-RC1, netbsd-2-1, netbsd-2-0-base, netbsd-2-0-RELEASE, netbsd-2-0-RC5, netbsd-2-0-RC4, netbsd-2-0-RC3, netbsd-2-0-RC2, netbsd-2-0-RC1, netbsd-2-0-3-RELEASE, netbsd-2-0-2-RELEASE, netbsd-2-0-1-RELEASE, netbsd-2-0, netbsd-2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, keiichi-mipv6-nbase, keiichi-mipv6-base, keiichi-mipv6, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, cube-autoconf-base, cube-autoconf, chap-midi-nbase, chap-midi-base, chap-midi, abandoned-netbsd-4-base, abandoned-netbsd-4
Branch point for: wrstuden-revivesa
Changes since 1.8: +3 -7 lines

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

/*	$NetBSD: what.c,v 1.9 2003/08/07 11:17:16 agc Exp $	*/

/*
 * Copyright (c) 1980, 1988, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1980, 1988, 1993\n\
	The Regents of the University of California.  All rights reserved.\n");
#endif /* not lint */

#ifndef lint
#if 0
static char sccsid[] = "@(#)what.c	8.1 (Berkeley) 6/6/93";
#endif
__RCSID("$NetBSD: what.c,v 1.9 2003/08/07 11:17:16 agc Exp $");
#endif /* not lint */

#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int main __P((int, char **));
static void search __P((void));
static void usage __P((void));

static int matches;
static int sflag;

/*
 * what
 */
/* ARGSUSED */
int
main(argc, argv)
	int argc;
	char **argv;
{
	int c;

	(void)setlocale(LC_ALL, "");

	matches = sflag = 0;
	while ((c = getopt(argc, argv, "s")) != -1) {
		switch (c) {
		case 's':
			sflag = 1;
			break;
		case '?':
		default:
			usage();
		}
	}
	argc -= optind;
	argv += optind;

	if (argc < 1) {
		usage();
	} else do {
		if (freopen(*argv, "r", stdin) == NULL) {
			perror(*argv);
			exit(matches ? EXIT_SUCCESS : 1);
		}
		printf("%s\n", *argv);
		search();
	} while (*++argv != NULL);

	/* Note: the standard explicitly specifies an exit status of 1. */
	exit(matches ? EXIT_SUCCESS : 1);
	/* NOTREACHED */
}

static void
search()
{
	int c;

	while ((c = getchar()) != EOF) {
loop:		if (c != '@')
			continue;
		if ((c = getchar()) != '(')
			goto loop;
		if ((c = getchar()) != '#')
			goto loop;
		if ((c = getchar()) != ')')
			goto loop;
		putchar('\t');
		while ((c = getchar()) != EOF && c != '\0' && c != '"' &&
		    c != '>' && c != '\n' && c != '\\')
			putchar(c);
		putchar('\n');
		matches++;
		if (sflag)
			break;
	}
}

static void
usage()
{

	(void)fprintf(stderr, "usage: what [-s] file ...\n");
	exit(1);
}