File: | src/usr.bin/find/main.c |
Warning: | line 107, column 2 Value stored to 'argc' is never read |
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1 | /* $OpenBSD: main.c,v 1.32 2021/10/24 21:24:16 deraadt Exp $ */ |
2 | |
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. |
15 | * 3. Neither the name of the University nor the names of its contributors |
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(*__errno()).h> |
37 | #include <fcntl.h> |
38 | #include <fts.h> |
39 | #include <signal.h> |
40 | #include <stdio.h> |
41 | #include <stdlib.h> |
42 | #include <string.h> |
43 | #include <time.h> |
44 | #include <unistd.h> |
45 | |
46 | #include "find.h" |
47 | |
48 | time_t now; /* time find was run */ |
49 | int dotfd; /* starting directory; may be -1 */ |
50 | int ftsoptions; /* options for the fts_open(3) call */ |
51 | int isdelete; /* user specified -delete operator */ |
52 | int isdepth; /* do directories on post-order visit */ |
53 | int isoutput; /* user specified output operator */ |
54 | int isxargs; /* don't permit xargs delimiting chars */ |
55 | |
56 | __dead__attribute__((__noreturn__)) static void usage(void); |
57 | |
58 | int |
59 | main(int argc, char *argv[]) |
60 | { |
61 | struct sigaction sa; |
62 | char **p, **paths, **paths2; |
63 | int ch; |
64 | |
65 | memset(&sa, 0, sizeof sa); |
66 | sa.sa_handler__sigaction_u.__sa_handler = show_path; |
67 | sa.sa_flags = SA_RESTART0x0002; |
68 | |
69 | (void)time(&now); /* initialize the time-of-day */ |
70 | |
71 | p = paths = ereallocarray(NULL((void *)0), argc, sizeof(char *)); |
72 | |
73 | sigaction(SIGINFO29, &sa, NULL((void *)0)); |
74 | |
75 | ftsoptions = FTS_NOSTAT0x0008|FTS_PHYSICAL0x0010; |
76 | while ((ch = getopt(argc, argv, "Hdf:hLXx")) != -1) |
77 | switch(ch) { |
78 | case 'H': |
79 | ftsoptions |= FTS_COMFOLLOW0x0001; |
80 | ftsoptions |= FTS_PHYSICAL0x0010; |
81 | ftsoptions &= ~FTS_LOGICAL0x0002; |
82 | break; |
83 | case 'd': |
84 | isdepth = 1; |
85 | break; |
86 | case 'f': |
87 | *p++ = optarg; |
88 | break; |
89 | case 'h': |
90 | case 'L': |
91 | ftsoptions &= ~FTS_COMFOLLOW0x0001; |
92 | ftsoptions &= ~FTS_PHYSICAL0x0010; |
93 | ftsoptions |= FTS_LOGICAL0x0002; |
94 | break; |
95 | case 'X': |
96 | isxargs = 1; |
97 | break; |
98 | case 'x': |
99 | ftsoptions &= ~FTS_NOSTAT0x0008; |
100 | ftsoptions |= FTS_XDEV0x0040; |
101 | break; |
102 | case '?': |
103 | default: |
104 | usage(); |
105 | } |
106 | |
107 | argc -= optind; |
Value stored to 'argc' is never read | |
108 | argv += optind; |
109 | |
110 | /* The first argument that starts with a -, or is a ! or a (, and all |
111 | * subsequent arguments shall be interpreted as an expression ... |
112 | * (POSIX.2). |
113 | */ |
114 | while (*argv) { |
115 | if (**argv == '-' || |
116 | ((**argv == '!' || **argv == '(') && (*argv)[1] == '\0')) |
117 | break; |
118 | *p++ = *argv++; |
119 | } |
120 | |
121 | if (p == paths) |
122 | usage(); |
123 | *p = NULL((void *)0); |
124 | |
125 | if (!(paths2 = reallocarray(paths, p - paths + 1, sizeof(char *)))) |
126 | err(1, NULL((void *)0)); |
127 | paths = paths2; |
128 | |
129 | dotfd = open(".", O_RDONLY0x0000); |
130 | |
131 | exit(find_execute(find_formplan(argv), paths)); |
132 | } |
133 | |
134 | static void |
135 | usage(void) |
136 | { |
137 | (void)fprintf(stderr(&__sF[2]), |
138 | "usage: find [-dHhLXx] [-f path] path ... [expression]\n"); |
139 | exit(1); |
140 | } |