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 volatile sig_atomic_t showinfo = 0; 63 64 static void usage(void) __dead2; 65 static void siginfo_handler(int sig __unused); 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 (void)signal(SIGINFO, siginfo_handler); 78 79 p = start = argv; 80 Hflag = Lflag = 0; 81 ftsoptions = FTS_NOSTAT | FTS_PHYSICAL; 82 while ((ch = getopt(argc, argv, "EHLPXdf:sx")) != -1) 83 switch (ch) { 84 case 'E': 85 regexp_flags |= REG_EXTENDED; 86 break; 87 case 'H': 88 Hflag = 1; 89 Lflag = 0; 90 break; 91 case 'L': 92 Lflag = 1; 93 Hflag = 0; 94 break; 95 case 'P': 96 Hflag = Lflag = 0; 97 break; 98 case 'X': 99 isxargs = 1; 100 break; 101 case 'd': 102 isdepth = 1; 103 break; 104 case 'f': 105 *p++ = optarg; 106 break; 107 case 's': 108 issort = 1; 109 break; 110 case 'x': 111 ftsoptions |= FTS_XDEV; 112 break; 113 case '?': 114 default: 115 usage(); 116 } 117 118 argc -= optind; 119 argv += optind; 120 121 if (Hflag) 122 ftsoptions |= FTS_COMFOLLOW; 123 if (Lflag) { 124 ftsoptions &= ~FTS_PHYSICAL; 125 ftsoptions |= FTS_LOGICAL; 126 } 127 128 /* 129 * Find first option to delimit the file list. The first argument 130 * that starts with a -, or is a ! or a ( must be interpreted as a 131 * part of the find expression, according to POSIX .2. 132 */ 133 for (; *argv != NULL; *p++ = *argv++) { 134 if (argv[0][0] == '-') 135 break; 136 if ((argv[0][0] == '!' || argv[0][0] == '(') && 137 argv[0][1] == '\0') 138 break; 139 } 140 141 if (p == start) 142 usage(); 143 *p = NULL; 144 145 if ((dotfd = open(".", O_RDONLY | O_CLOEXEC, 0)) < 0) 146 ftsoptions |= FTS_NOCHDIR; 147 148 exit(find_execute(find_formplan(argv), start)); 149 } 150 151 static void 152 usage(void) 153 { 154 (void)fprintf(stderr, "%s\n%s\n", 155 "usage: find [-H | -L | -P] [-EXdsx] [-f path] path ... [expression]", 156 " find [-H | -L | -P] [-EXdsx] -f path [path ...] [expression]"); 157 exit(1); 158 } 159 160 static void 161 siginfo_handler(int sig __unused) 162 { 163 showinfo = 1; 164 } 165