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