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author | Kiyoshi Aman <kiyoshi.aman+adelie@gmail.com> | 2019-02-01 22:55:37 +0000 |
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committer | Kiyoshi Aman <kiyoshi.aman+adelie@gmail.com> | 2019-02-03 18:22:05 -0600 |
commit | 5b57d28ffb6e1ef86b50f7d05d977826eae89bfe (patch) | |
tree | 154a22fe556b49e6927197336f8bf91b12eacd5e /usr.bin/what/what.c | |
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initial population
Diffstat (limited to 'usr.bin/what/what.c')
-rw-r--r-- | usr.bin/what/what.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/usr.bin/what/what.c b/usr.bin/what/what.c new file mode 100644 index 0000000..fb29e52 --- /dev/null +++ b/usr.bin/what/what.c @@ -0,0 +1,127 @@ +/* $NetBSD: what.c,v 1.12 2015/12/12 09:50:12 dholland 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\ + The Regents of the University of California. All rights reserved."); +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)what.c 8.1 (Berkeley) 6/6/93"; +#endif +__RCSID("$NetBSD: what.c,v 1.12 2015/12/12 09:50:12 dholland Exp $"); +#endif /* not lint */ + +#include <locale.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +static void search(void); +__dead static void usage(void); + +static int matches; +static int sflag; + +/* + * what + */ +int +main(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(void) +{ + 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) +{ + + (void)fprintf(stderr, "usage: what [-s] file ...\n"); + exit(1); +} |