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 static const char copyright[] =
36 "@(#) Copyright (c) 1990, 1993, 1994\n\
37 The Regents of the University of California. All rights reserved.\n";
38
39 #if 0
40 static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 5/4/95";
41 #endif
42
43 #include <sys/cdefs.h>
44 #include <sys/types.h>
45 #include <sys/stat.h>
46
47 #include <err.h>
48 #include <errno.h>
49 #include <fcntl.h>
50 #include <fts.h>
51 #include <locale.h>
52 #include <regex.h>
53 #include <stdio.h>
54 #include <stdlib.h>
55 #include <time.h>
56 #include <unistd.h>
57
58 #include "find.h"
59
60 time_t now; /* time find was run */
61 int dotfd; /* starting directory */
62 int ftsoptions; /* options for the ftsopen(3) call */
63 int ignore_readdir_race; /* ignore readdir race */
64 int isdepth; /* do directories on post-order visit */
65 int isoutput; /* user specified output operator */
66 int issort; /* do hierarchies in lexicographical order */
67 int isxargs; /* don't permit xargs delimiting chars */
68 int mindepth = -1, maxdepth = -1; /* minimum and maximum depth */
69 int regexp_flags = REG_BASIC; /* use the "basic" regexp by default*/
70 int exitstatus;
71 volatile sig_atomic_t showinfo = 0;
72
73 static void usage(void) __dead2;
74 static void siginfo_handler(int sig __unused);
75
76 int
main(int argc,char * argv[])77 main(int argc, char *argv[])
78 {
79 char **p, **start;
80 int Hflag, Lflag, ch;
81
82 (void)setlocale(LC_ALL, "");
83
84 (void)time(&now); /* initialize the time-of-day */
85
86 (void)signal(SIGINFO, siginfo_handler);
87
88 p = start = argv;
89 Hflag = Lflag = 0;
90 ftsoptions = FTS_NOSTAT | FTS_PHYSICAL;
91 while ((ch = getopt(argc, argv, "EHLPXdf:sx")) != -1)
92 switch (ch) {
93 case 'E':
94 regexp_flags |= REG_EXTENDED;
95 break;
96 case 'H':
97 Hflag = 1;
98 Lflag = 0;
99 break;
100 case 'L':
101 Lflag = 1;
102 Hflag = 0;
103 break;
104 case 'P':
105 Hflag = Lflag = 0;
106 break;
107 case 'X':
108 isxargs = 1;
109 break;
110 case 'd':
111 isdepth = 1;
112 break;
113 case 'f':
114 *p++ = optarg;
115 break;
116 case 's':
117 issort = 1;
118 break;
119 case 'x':
120 ftsoptions |= FTS_XDEV;
121 break;
122 case '?':
123 default:
124 usage();
125 }
126
127 argc -= optind;
128 argv += optind;
129
130 if (Hflag)
131 ftsoptions |= FTS_COMFOLLOW;
132 if (Lflag) {
133 ftsoptions &= ~FTS_PHYSICAL;
134 ftsoptions |= FTS_LOGICAL;
135 }
136
137 /*
138 * Find first option to delimit the file list. The first argument
139 * that starts with a -, or is a ! or a ( must be interpreted as a
140 * part of the find expression, according to POSIX .2.
141 */
142 for (; *argv != NULL; *p++ = *argv++) {
143 if (argv[0][0] == '-')
144 break;
145 if ((argv[0][0] == '!' || argv[0][0] == '(') &&
146 argv[0][1] == '\0')
147 break;
148 }
149
150 if (p == start)
151 usage();
152 *p = NULL;
153
154 if ((dotfd = open(".", O_RDONLY | O_CLOEXEC, 0)) < 0)
155 ftsoptions |= FTS_NOCHDIR;
156
157 exit(find_execute(find_formplan(argv), start));
158 }
159
160 static void
usage(void)161 usage(void)
162 {
163 (void)fprintf(stderr, "%s\n%s\n",
164 "usage: find [-H | -L | -P] [-EXdsx] [-f path] path ... [expression]",
165 " find [-H | -L | -P] [-EXdsx] -f path [path ...] [expression]");
166 exit(1);
167 }
168
169 static void
siginfo_handler(int sig __unused)170 siginfo_handler(int sig __unused)
171 {
172 showinfo = 1;
173 }
174