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/* $OpenBSD: what.c,v 1.15 2015/10/09 01:37:09 deraadt Exp $ */ |
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/* $NetBSD: what.c,v 1.4 1994/12/20 16:01:03 jtc 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/types.h> |
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#include <sys/utsname.h> |
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#include <stdio.h> |
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#include <ctype.h> |
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#include <err.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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static void search(char *); |
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static void usage(void); |
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static int matches; |
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static int sflag; |
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extern char *__progname; |
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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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struct utsname utsn; |
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char match[256]; |
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int c; |
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if (pledge("stdio rpath flock cpath wpath", NULL) == -1) |
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err(1, "pledge"); |
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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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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 (uname(&utsn) == -1) |
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err(1, "uname"); |
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strlcpy(match, utsn.sysname, sizeof match); |
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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)) { |
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perror(*argv); |
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exit(matches ? 0 : 1); |
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} |
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printf("%s\n", *argv); |
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search(match); |
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} while(*++argv); |
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exit(matches ? 0 : 1); |
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} |
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static void |
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search(char *match) |
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{ |
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int c; |
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int i; |
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while ((c = getchar()) != EOF) { |
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loop: if (c == '$') { |
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for (i = 0; match[i]; i++) |
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if ((c = getchar()) != match[i]) |
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goto loop; |
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printf("\t$%s", match); |
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while (isprint(c = getchar())) { |
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putchar(c); |
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if (c == '$') |
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break; |
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} |
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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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goto loop; |
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} |
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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 && 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: %s [-s] file ...\n", __progname); |
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exit(1); |
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} |