1 /* $OpenBSD: what.c,v 1.12 2009/10/27 23:59:50 deraadt Exp $ */ 2 /* $NetBSD: what.c,v 1.4 1994/12/20 16:01:03 jtc Exp $ */ 3 4 /* 5 * Copyright (c) 1980, 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/types.h> 34 #include <sys/utsname.h> 35 #include <stdio.h> 36 #include <ctype.h> 37 #include <err.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <unistd.h> 41 42 static void search(char *); 43 static void usage(void); 44 45 static int matches; 46 static int sflag; 47 48 extern char *__progname; 49 50 /* 51 * what 52 */ 53 /* ARGSUSED */ 54 int 55 main(int argc, char *argv[]) 56 { 57 struct utsname utsn; 58 char match[256]; 59 int c; 60 61 matches = sflag = 0; 62 while ((c = getopt(argc, argv, "s")) != -1) { 63 switch (c) { 64 case 's': 65 sflag = 1; 66 break; 67 default: 68 usage(); 69 } 70 } 71 argc -= optind; 72 argv += optind; 73 74 if (uname(&utsn) == -1) 75 err(1, "uname"); 76 strlcpy(match, utsn.sysname, sizeof match); 77 78 if (argc < 1) { 79 usage(); 80 } else do { 81 if (!freopen(*argv, "r", stdin)) { 82 perror(*argv); 83 exit(matches ? 0 : 1); 84 } 85 printf("%s\n", *argv); 86 search(match); 87 } while(*++argv); 88 exit(matches ? 0 : 1); 89 } 90 91 static void 92 search(char *match) 93 { 94 int c; 95 int i; 96 97 while ((c = getchar()) != EOF) { 98 loop: if (c == '$') { 99 for (i = 0; match[i]; i++) 100 if ((c = getchar()) != match[i]) 101 goto loop; 102 printf("\t$%s", match); 103 while (isprint(c = getchar())) 104 putchar(c); 105 putchar('\n'); 106 matches++; 107 if (sflag) 108 break; 109 goto loop; 110 } 111 if (c != '@') 112 continue; 113 if ((c = getchar()) != '(') 114 goto loop; 115 if ((c = getchar()) != '#') 116 goto loop; 117 if ((c = getchar()) != ')') 118 goto loop; 119 putchar('\t'); 120 while ((c = getchar()) != EOF && c && c != '"' && 121 c != '>' && c != '\n' && c != '\\') 122 putchar(c); 123 putchar('\n'); 124 matches++; 125 if (sflag) 126 break; 127 } 128 } 129 130 static void 131 usage(void) 132 { 133 134 (void)fprintf(stderr, "usage: %s [-s] file ...\n", __progname); 135 exit(1); 136 } 137