1 /* $NetBSD: main.c,v 1.32 2023/04/01 15:57:20 christos 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\
41 The Regents of the University of California. All rights reserved.");
42 __RCSID("$NetBSD: main.c,v 1.32 2023/04/01 15:57:20 christos 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 <locale.h>
54 #include <stdio.h>
55 #include <stdlib.h>
56 #include <string.h>
57 #include <time.h>
58 #include <unistd.h>
59
60 #include "find.h"
61
62 time_t now; /* time find was run */
63 int dotfd; /* starting directory */
64 int ftsoptions; /* options for the ftsopen(3) call */
65 int isdeprecated; /* using deprecated syntax */
66 int isdepth; /* do directories on post-order visit */
67 int isoutput; /* user specified output operator */
68 int issort; /* sort directory entries */
69 int isxargs; /* don't permit xargs delimiting chars */
70 int regcomp_flags = REG_BASIC; /* regex compilation flags */
71
72 __dead static void usage(void);
73
74 int
main(int argc,char * argv[])75 main(int argc, char *argv[])
76 {
77 char **p, **start;
78 int ch;
79
80 (void)time(&now); /* initialize the time-of-day */
81 (void)setlocale(LC_ALL, "");
82
83 /* array to hold dir list. at most (argc - 1) elements. */
84 p = start = malloc(argc * sizeof (char *));
85 if (p == NULL)
86 err(1, NULL);
87
88 ftsoptions = FTS_NOSTAT | FTS_PHYSICAL;
89 while ((ch = getopt(argc, argv, "HLPdEf:hsXx")) != -1)
90 switch (ch) {
91 case 'H':
92 ftsoptions &= ~FTS_LOGICAL;
93 ftsoptions |= FTS_PHYSICAL|FTS_COMFOLLOW;
94 break;
95 case 'L':
96 ftsoptions &= ~(FTS_COMFOLLOW|FTS_PHYSICAL);
97 ftsoptions |= FTS_LOGICAL;
98 break;
99 case 'P':
100 ftsoptions &= ~(FTS_COMFOLLOW|FTS_LOGICAL);
101 ftsoptions |= FTS_PHYSICAL;
102 break;
103 case 'd':
104 isdepth = 1;
105 break;
106 case 'E':
107 regcomp_flags = REG_EXTENDED;
108 break;
109 case 'f':
110 *p++ = optarg;
111 break;
112 case 'h':
113 ftsoptions &= ~FTS_PHYSICAL;
114 ftsoptions |= FTS_LOGICAL;
115 break;
116 case 's':
117 issort = 1;
118 break;
119 case 'X':
120 isxargs = 1;
121 break;
122 case 'x':
123 ftsoptions |= FTS_XDEV;
124 break;
125 case '?':
126 default:
127 break;
128 }
129
130 argc -= optind;
131 argv += optind;
132
133 /*
134 * Find first option to delimit the file list. The first argument
135 * that starts with a -, or is a ! or a ( must be interpreted as a
136 * part of the find expression, according to POSIX .2.
137 */
138 for (; *argv != NULL; *p++ = *argv++) {
139 if (argv[0][0] == '-')
140 break;
141 if ((argv[0][0] == '!' || argv[0][0] == '(') &&
142 argv[0][1] == '\0')
143 break;
144 }
145
146 if (p == start)
147 usage();
148
149 *p = NULL;
150
151 if ((dotfd = open(".", O_RDONLY | O_CLOEXEC, 0)) == -1)
152 ftsoptions |= FTS_NOCHDIR;
153
154 return find_execute(find_formplan(argv), start);
155 }
156
157 static void
usage(void)158 usage(void)
159 {
160
161 (void)fprintf(stderr, "Usage: %s [-H | -L | -P] [-dEhsXx] [-f file] "
162 "file [file ...] [expression]\n", getprogname());
163 exit(1);
164 }
165