Annotation of src/usr.bin/find/main.c, Revision 1.28
1.28 ! naddy 1: /* $OpenBSD: main.c,v 1.27 2011/04/21 01:14:21 jacekm Exp $ */
1.2 deraadt 2:
1.1 deraadt 3: /*-
4: * Copyright (c) 1990, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
1.15 millert 15: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
32: #include <sys/types.h>
33: #include <sys/stat.h>
34:
35: #include <err.h>
36: #include <errno.h>
37: #include <fcntl.h>
38: #include <fts.h>
1.3 tholo 39: #include <signal.h>
1.1 deraadt 40: #include <stdio.h>
41: #include <stdlib.h>
1.9 deraadt 42: #include <string.h>
1.1 deraadt 43: #include <time.h>
44:
45: #include "find.h"
46:
47: time_t now; /* time find was run */
1.25 millert 48: int dotfd; /* starting directory; may be -1 */
1.23 jmc 49: int ftsoptions; /* options for the fts_open(3) call */
1.1 deraadt 50: int isdepth; /* do directories on post-order visit */
51: int isoutput; /* user specified output operator */
52: int isxargs; /* don't permit xargs delimiting chars */
53:
1.20 jaredy 54: __dead static void usage(void);
1.1 deraadt 55:
56: int
1.16 deraadt 57: main(int argc, char *argv[])
1.1 deraadt 58: {
1.9 deraadt 59: struct sigaction sa;
1.17 tedu 60: char **p, **paths, **paths2;
1.1 deraadt 61: int ch;
1.9 deraadt 62:
63: memset(&sa, 0, sizeof sa);
64: sa.sa_handler = show_path;
65: sa.sa_flags = SA_RESTART;
1.1 deraadt 66:
67: (void)time(&now); /* initialize the time-of-day */
1.3 tholo 68:
1.7 millert 69: p = paths = (char **) emalloc(sizeof(char *) * argc);
1.5 millert 70:
1.3 tholo 71: sigaction(SIGINFO, &sa, NULL);
1.1 deraadt 72:
73: ftsoptions = FTS_NOSTAT|FTS_PHYSICAL;
1.21 millert 74: while ((ch = getopt(argc, argv, "Hdf:hLXx")) != -1)
1.1 deraadt 75: switch(ch) {
76: case 'H':
77: ftsoptions |= FTS_COMFOLLOW;
1.26 schwarze 78: ftsoptions |= FTS_PHYSICAL;
79: ftsoptions &= ~FTS_LOGICAL;
1.1 deraadt 80: break;
81: case 'd':
82: isdepth = 1;
83: break;
84: case 'f':
85: *p++ = optarg;
86: break;
87: case 'h':
1.14 millert 88: case 'L':
1.26 schwarze 89: ftsoptions &= ~FTS_COMFOLLOW;
1.1 deraadt 90: ftsoptions &= ~FTS_PHYSICAL;
91: ftsoptions |= FTS_LOGICAL;
92: break;
93: case 'X':
94: isxargs = 1;
95: break;
96: case 'x':
97: ftsoptions &= ~FTS_NOSTAT;
98: ftsoptions |= FTS_XDEV;
1.8 espie 99: break;
1.1 deraadt 100: case '?':
101: default:
1.28 ! naddy 102: usage();
1.1 deraadt 103: }
104:
105: argc -= optind;
106: argv += optind;
107:
108: /* The first argument that starts with a -, or is a ! or a (, and all
109: * subsequent arguments shall be interpreted as an expression ...
110: * (POSIX.2).
111: */
112: while (*argv) {
113: if (**argv == '-' ||
114: ((**argv == '!' || **argv == '(') && (*argv)[1] == '\0'))
115: break;
116: *p++ = *argv++;
117: }
118:
1.6 millert 119: if (p == paths)
1.7 millert 120: usage();
1.5 millert 121: *p = NULL;
1.6 millert 122:
1.17 tedu 123: if (!(paths2 = realloc(paths, sizeof(char *) * (p - paths + 1))))
1.5 millert 124: err(1, NULL);
1.17 tedu 125: paths = paths2;
1.1 deraadt 126:
1.25 millert 127: dotfd = open(".", O_RDONLY, 0);
1.1 deraadt 128:
1.27 jacekm 129: exit(find_execute(find_formplan(argv), paths));
1.1 deraadt 130: }
131:
132: static void
1.16 deraadt 133: usage(void)
1.1 deraadt 134: {
135: (void)fprintf(stderr,
1.22 david 136: "usage: find [-dHhLXx] [-f path] path ... [expression]\n");
1.1 deraadt 137: exit(1);
138: }
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