1 /* $NetBSD: main.c,v 1.25 2006/10/11 19:51:10 apb Exp $ */ 2 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/cdefs.h> 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 5/4/95"; 39 #else 40 __COPYRIGHT("@(#) Copyright (c) 1990, 1993, 1994\n\ 41 The Regents of the University of California. All rights reserved.\n"); 42 __RCSID("$NetBSD: main.c,v 1.25 2006/10/11 19:51:10 apb Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/types.h> 47 #include <sys/stat.h> 48 49 #include <err.h> 50 #include <errno.h> 51 #include <fcntl.h> 52 #include <fts.h> 53 #include <signal.h> 54 #include <locale.h> 55 #include <stdio.h> 56 #include <stdlib.h> 57 #include <string.h> 58 #include <time.h> 59 #include <unistd.h> 60 61 #include "find.h" 62 63 time_t now; /* time find was run */ 64 int dotfd; /* starting directory */ 65 int ftsoptions; /* options for the ftsopen(3) call */ 66 int isdeprecated; /* using deprecated syntax */ 67 int isdepth; /* do directories on post-order visit */ 68 int isoutput; /* user specified output operator */ 69 int issort; /* sort directory entries */ 70 int isxargs; /* don't permit xargs delimiting chars */ 71 72 int main(int, char **); 73 static void usage(void); 74 75 int 76 main(int argc, char *argv[]) 77 { 78 struct sigaction sa; 79 char **p, **start; 80 int ch; 81 82 (void)time(&now); /* initialize the time-of-day */ 83 (void)setlocale(LC_ALL, ""); 84 85 memset(&sa, 0, sizeof(sa)); 86 sa.sa_flags = SA_RESTART; 87 sa.sa_handler = show_path; 88 sigaction(SIGINFO, &sa, NULL); 89 90 /* array to hold dir list. at most (argc - 1) elements. */ 91 p = start = alloca(argc * sizeof (char *)); 92 93 ftsoptions = FTS_NOSTAT | FTS_PHYSICAL; 94 while ((ch = getopt(argc, argv, "HLPXdf:hsx")) != -1) 95 switch (ch) { 96 case 'H': 97 ftsoptions &= ~FTS_LOGICAL; 98 ftsoptions |= FTS_PHYSICAL|FTS_COMFOLLOW; 99 break; 100 case 'L': 101 ftsoptions &= ~(FTS_COMFOLLOW|FTS_PHYSICAL); 102 ftsoptions |= FTS_LOGICAL; 103 break; 104 case 'P': 105 ftsoptions &= ~(FTS_COMFOLLOW|FTS_LOGICAL); 106 ftsoptions |= FTS_PHYSICAL; 107 break; 108 case 'X': 109 isxargs = 1; 110 break; 111 case 'd': 112 isdepth = 1; 113 break; 114 case 'f': 115 *p++ = optarg; 116 break; 117 case 'h': 118 ftsoptions &= ~FTS_PHYSICAL; 119 ftsoptions |= FTS_LOGICAL; 120 break; 121 case 's': 122 issort = 1; 123 break; 124 case 'x': 125 ftsoptions |= FTS_XDEV; 126 break; 127 case '?': 128 default: 129 break; 130 } 131 132 argc -= optind; 133 argv += optind; 134 135 /* 136 * Find first option to delimit the file list. The first argument 137 * that starts with a -, or is a ! or a ( must be interpreted as a 138 * part of the find expression, according to POSIX .2. 139 */ 140 for (; *argv != NULL; *p++ = *argv++) { 141 if (argv[0][0] == '-') 142 break; 143 if ((argv[0][0] == '!' || argv[0][0] == '(') && 144 argv[0][1] == '\0') 145 break; 146 } 147 148 if (p == start) 149 usage(); 150 151 *p = NULL; 152 153 if ((dotfd = open(".", O_RDONLY, 0)) == -1 || 154 fcntl(dotfd, F_SETFD, FD_CLOEXEC) == -1) 155 err(1, "."); 156 157 exit(find_execute(find_formplan(argv), start)); 158 } 159 160 static void 161 usage(void) 162 { 163 164 (void)fprintf(stderr, 165 "usage: find [-H | -L | -P] [-Xdhsx] [-f file] file [file ...] [expression]\n"); 166 exit(1); 167 } 168