1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1990, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Cimarron D. Taylor of the University of California, Berkeley. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/types.h> 36 #include <sys/stat.h> 37 38 #include <err.h> 39 #include <errno.h> 40 #include <fcntl.h> 41 #include <fts.h> 42 #include <locale.h> 43 #include <regex.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <time.h> 47 #include <unistd.h> 48 49 #include "find.h" 50 51 time_t now; /* time find was run */ 52 int dotfd; /* starting directory */ 53 int ftsoptions; /* options for the ftsopen(3) call */ 54 int ignore_readdir_race; /* ignore readdir race */ 55 int isdepth; /* do directories on post-order visit */ 56 int isoutput; /* user specified output operator */ 57 int issort; /* do hierarchies in lexicographical order */ 58 int isxargs; /* don't permit xargs delimiting chars */ 59 int mindepth = -1, maxdepth = -1; /* minimum and maximum depth */ 60 int regexp_flags = REG_BASIC; /* use the "basic" regexp by default*/ 61 int exitstatus; 62 63 static void usage(void) __dead2; 64 65 int 66 main(int argc, char *argv[]) 67 { 68 char **p, **start; 69 int Hflag, Lflag, ch; 70 71 (void)setlocale(LC_ALL, ""); 72 73 (void)time(&now); /* initialize the time-of-day */ 74 75 p = start = argv; 76 Hflag = Lflag = 0; 77 ftsoptions = FTS_NOSTAT | FTS_PHYSICAL; 78 while ((ch = getopt(argc, argv, "EHLPXdf:sx")) != -1) 79 switch (ch) { 80 case 'E': 81 regexp_flags |= REG_EXTENDED; 82 break; 83 case 'H': 84 Hflag = 1; 85 Lflag = 0; 86 break; 87 case 'L': 88 Lflag = 1; 89 Hflag = 0; 90 break; 91 case 'P': 92 Hflag = Lflag = 0; 93 break; 94 case 'X': 95 isxargs = 1; 96 break; 97 case 'd': 98 isdepth = 1; 99 break; 100 case 'f': 101 *p++ = optarg; 102 break; 103 case 's': 104 issort = 1; 105 break; 106 case 'x': 107 ftsoptions |= FTS_XDEV; 108 break; 109 case '?': 110 default: 111 usage(); 112 } 113 114 argc -= optind; 115 argv += optind; 116 117 if (Hflag) 118 ftsoptions |= FTS_COMFOLLOW; 119 if (Lflag) { 120 ftsoptions &= ~FTS_PHYSICAL; 121 ftsoptions |= FTS_LOGICAL; 122 } 123 124 /* 125 * Find first option to delimit the file list. The first argument 126 * that starts with a -, or is a ! or a ( must be interpreted as a 127 * part of the find expression, according to POSIX .2. 128 */ 129 for (; *argv != NULL; *p++ = *argv++) { 130 if (argv[0][0] == '-') 131 break; 132 if ((argv[0][0] == '!' || argv[0][0] == '(') && 133 argv[0][1] == '\0') 134 break; 135 } 136 137 if (p == start) 138 usage(); 139 *p = NULL; 140 141 if ((dotfd = open(".", O_RDONLY | O_CLOEXEC, 0)) < 0) 142 ftsoptions |= FTS_NOCHDIR; 143 144 exit(find_execute(find_formplan(argv), start)); 145 } 146 147 static void 148 usage(void) 149 { 150 (void)fprintf(stderr, "%s\n%s\n", 151 "usage: find [-H | -L | -P] [-EXdsx] [-f path] path ... [expression]", 152 " find [-H | -L | -P] [-EXdsx] -f path [path ...] [expression]"); 153 exit(1); 154 } 155