1 /*- 2 * Copyright (c) 1990, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Cimarron D. Taylor of the University of California, Berkeley. 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 * @(#) Copyright (c) 1990, 1993, 1994 The Regents of the University of California. All rights reserved. 33 * @(#)main.c 8.4 (Berkeley) 5/4/95 34 * $FreeBSD: head/usr.bin/find/main.c 246628 2013-02-10 18:56:37Z jilles $ 35 */ 36 37 #include <sys/types.h> 38 #include <sys/stat.h> 39 40 #include <err.h> 41 #include <errno.h> 42 #include <fcntl.h> 43 #include <fts.h> 44 #include <locale.h> 45 #include <regex.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <time.h> 49 #include <unistd.h> 50 51 #include "find.h" 52 53 time_t now; /* time find was run */ 54 int dotfd; /* starting directory */ 55 int ftsoptions; /* options for the ftsopen(3) call */ 56 int ignore_readdir_race; /* ignore readdir race */ 57 int isdeprecated; /* using deprecated syntax */ 58 int isdepth; /* do directories on post-order visit */ 59 int isoutput; /* user specified output operator */ 60 int issort; /* do hierarchies in lexicographical order */ 61 int isxargs; /* don't permit xargs delimiting chars */ 62 int mindepth = -1, maxdepth = -1; /* minimum and maximum depth */ 63 int regexp_flags = REG_BASIC; /* use the "basic" regexp by default*/ 64 65 static void usage(void); 66 67 int 68 main(int argc, char *argv[]) 69 { 70 char **p, **start; 71 int Hflag, Lflag, ch; 72 73 (void)setlocale(LC_ALL, ""); 74 75 (void)time(&now); /* initialize the time-of-day */ 76 77 p = start = argv; 78 Hflag = Lflag = 0; 79 ftsoptions = FTS_NOSTAT | FTS_PHYSICAL; 80 while ((ch = getopt(argc, argv, "EHLPXdf:sx")) != -1) 81 switch (ch) { 82 case 'E': 83 regexp_flags |= REG_EXTENDED; 84 break; 85 case 'H': 86 Hflag = 1; 87 Lflag = 0; 88 break; 89 case 'L': 90 Lflag = 1; 91 Hflag = 0; 92 break; 93 case 'P': 94 Hflag = Lflag = 0; 95 break; 96 case 'X': 97 isxargs = 1; 98 break; 99 case 'd': 100 isdepth = 1; 101 break; 102 case 'f': 103 *p++ = optarg; 104 break; 105 case 's': 106 issort = 1; 107 break; 108 case 'x': 109 ftsoptions |= FTS_XDEV; 110 break; 111 case '?': 112 default: 113 usage(); 114 } 115 116 argc -= optind; 117 argv += optind; 118 119 if (Hflag) 120 ftsoptions |= FTS_COMFOLLOW; 121 if (Lflag) { 122 ftsoptions &= ~FTS_PHYSICAL; 123 ftsoptions |= FTS_LOGICAL; 124 } 125 126 /* 127 * Find first option to delimit the file list. The first argument 128 * that starts with a -, or is a ! or a ( must be interpreted as a 129 * part of the find expression, according to POSIX .2. 130 */ 131 for (; *argv != NULL; *p++ = *argv++) { 132 if (argv[0][0] == '-') 133 break; 134 if ((argv[0][0] == '!' || argv[0][0] == '(') && 135 argv[0][1] == '\0') 136 break; 137 } 138 139 if (p == start) 140 usage(); 141 *p = NULL; 142 143 if ((dotfd = open(".", O_RDONLY | O_CLOEXEC, 0)) < 0) 144 ftsoptions |= FTS_NOCHDIR; 145 146 exit(find_execute(find_formplan(argv), start)); 147 } 148 149 static void 150 usage(void) 151 { 152 (void)fprintf(stderr, "%s\n%s\n", 153 "usage: find [-H | -L | -P] [-EXdsx] [-f path] path ... [expression]", 154 " find [-H | -L | -P] [-EXdsx] -f path [path ...] [expression]"); 155 exit(1); 156 } 157