1 /* $NetBSD: what.c,v 1.8 1999/12/22 14:39:18 kleink Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1980, 1988, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)what.c 8.1 (Berkeley) 6/6/93"; 45 #endif 46 __RCSID("$NetBSD: what.c,v 1.8 1999/12/22 14:39:18 kleink Exp $"); 47 #endif /* not lint */ 48 49 #include <locale.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <unistd.h> 53 54 int main __P((int, char **)); 55 static void search __P((void)); 56 static void usage __P((void)); 57 58 static int matches; 59 static int sflag; 60 61 /* 62 * what 63 */ 64 /* ARGSUSED */ 65 int 66 main(argc, argv) 67 int argc; 68 char **argv; 69 { 70 int c; 71 72 (void)setlocale(LC_ALL, ""); 73 74 matches = sflag = 0; 75 while ((c = getopt(argc, argv, "s")) != -1) { 76 switch (c) { 77 case 's': 78 sflag = 1; 79 break; 80 case '?': 81 default: 82 usage(); 83 } 84 } 85 argc -= optind; 86 argv += optind; 87 88 if (argc < 1) { 89 usage(); 90 } else do { 91 if (freopen(*argv, "r", stdin) == NULL) { 92 perror(*argv); 93 exit(matches ? EXIT_SUCCESS : 1); 94 } 95 printf("%s\n", *argv); 96 search(); 97 } while (*++argv != NULL); 98 99 /* Note: the standard explicitly specifies an exit status of 1. */ 100 exit(matches ? EXIT_SUCCESS : 1); 101 /* NOTREACHED */ 102 } 103 104 static void 105 search() 106 { 107 int c; 108 109 while ((c = getchar()) != EOF) { 110 loop: if (c != '@') 111 continue; 112 if ((c = getchar()) != '(') 113 goto loop; 114 if ((c = getchar()) != '#') 115 goto loop; 116 if ((c = getchar()) != ')') 117 goto loop; 118 putchar('\t'); 119 while ((c = getchar()) != EOF && c != '\0' && c != '"' && 120 c != '>' && c != '\n' && c != '\\') 121 putchar(c); 122 putchar('\n'); 123 matches++; 124 if (sflag) 125 break; 126 } 127 } 128 129 static void 130 usage() 131 { 132 133 (void)fprintf(stderr, "usage: what [-s] file ...\n"); 134 exit(1); 135 } 136