| 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 | } |