1 /* $OpenBSD: main.c,v 1.28 2011/06/14 21:04:05 naddy Exp $ */ 2 3 /*- 4 * Copyright (c) 1990, 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/types.h> 33 #include <sys/stat.h> 34 35 #include <err.h> 36 #include <errno.h> 37 #include <fcntl.h> 38 #include <fts.h> 39 #include <signal.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <time.h> 44 45 #include "find.h" 46 47 time_t now; /* time find was run */ 48 int dotfd; /* starting directory; may be -1 */ 49 int ftsoptions; /* options for the fts_open(3) call */ 50 int isdepth; /* do directories on post-order visit */ 51 int isoutput; /* user specified output operator */ 52 int isxargs; /* don't permit xargs delimiting chars */ 53 54 __dead static void usage(void); 55 56 int 57 main(int argc, char *argv[]) 58 { 59 struct sigaction sa; 60 char **p, **paths, **paths2; 61 int ch; 62 63 memset(&sa, 0, sizeof sa); 64 sa.sa_handler = show_path; 65 sa.sa_flags = SA_RESTART; 66 67 (void)time(&now); /* initialize the time-of-day */ 68 69 p = paths = (char **) emalloc(sizeof(char *) * argc); 70 71 sigaction(SIGINFO, &sa, NULL); 72 73 ftsoptions = FTS_NOSTAT|FTS_PHYSICAL; 74 while ((ch = getopt(argc, argv, "Hdf:hLXx")) != -1) 75 switch(ch) { 76 case 'H': 77 ftsoptions |= FTS_COMFOLLOW; 78 ftsoptions |= FTS_PHYSICAL; 79 ftsoptions &= ~FTS_LOGICAL; 80 break; 81 case 'd': 82 isdepth = 1; 83 break; 84 case 'f': 85 *p++ = optarg; 86 break; 87 case 'h': 88 case 'L': 89 ftsoptions &= ~FTS_COMFOLLOW; 90 ftsoptions &= ~FTS_PHYSICAL; 91 ftsoptions |= FTS_LOGICAL; 92 break; 93 case 'X': 94 isxargs = 1; 95 break; 96 case 'x': 97 ftsoptions &= ~FTS_NOSTAT; 98 ftsoptions |= FTS_XDEV; 99 break; 100 case '?': 101 default: 102 usage(); 103 } 104 105 argc -= optind; 106 argv += optind; 107 108 /* The first argument that starts with a -, or is a ! or a (, and all 109 * subsequent arguments shall be interpreted as an expression ... 110 * (POSIX.2). 111 */ 112 while (*argv) { 113 if (**argv == '-' || 114 ((**argv == '!' || **argv == '(') && (*argv)[1] == '\0')) 115 break; 116 *p++ = *argv++; 117 } 118 119 if (p == paths) 120 usage(); 121 *p = NULL; 122 123 if (!(paths2 = realloc(paths, sizeof(char *) * (p - paths + 1)))) 124 err(1, NULL); 125 paths = paths2; 126 127 dotfd = open(".", O_RDONLY, 0); 128 129 exit(find_execute(find_formplan(argv), paths)); 130 } 131 132 static void 133 usage(void) 134 { 135 (void)fprintf(stderr, 136 "usage: find [-dHhLXx] [-f path] path ... [expression]\n"); 137 exit(1); 138 } 139