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/* $OpenBSD: main.c,v 1.31 2017/01/03 21:31:16 tedu Exp $ */ |
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/*- |
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* Copyright (c) 1990, 1993 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <err.h> |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <fts.h> |
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#include <signal.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include <unistd.h> |
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#include "find.h" |
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time_t now; /* time find was run */ |
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int dotfd; /* starting directory; may be -1 */ |
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int ftsoptions; /* options for the fts_open(3) call */ |
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int isdelete; /* user specified -delete operator */ |
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int isdepth; /* do directories on post-order visit */ |
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int isoutput; /* user specified output operator */ |
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int isxargs; /* don't permit xargs delimiting chars */ |
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__dead static void usage(void); |
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int |
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main(int argc, char *argv[]) |
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{ |
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struct sigaction sa; |
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char **p, **paths, **paths2; |
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int ch; |
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memset(&sa, 0, sizeof sa); |
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sa.sa_handler = show_path; |
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sa.sa_flags = SA_RESTART; |
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(void)time(&now); /* initialize the time-of-day */ |
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p = paths = ereallocarray(NULL, argc, sizeof(char *)); |
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sigaction(SIGINFO, &sa, NULL); |
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ftsoptions = FTS_NOSTAT|FTS_PHYSICAL; |
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✗✓ |
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while ((ch = getopt(argc, argv, "Hdf:hLXx")) != -1) |
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switch(ch) { |
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case 'H': |
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ftsoptions |= FTS_COMFOLLOW; |
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ftsoptions |= FTS_PHYSICAL; |
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ftsoptions &= ~FTS_LOGICAL; |
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break; |
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case 'd': |
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isdepth = 1; |
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break; |
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case 'f': |
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*p++ = optarg; |
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break; |
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case 'h': |
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case 'L': |
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ftsoptions &= ~FTS_COMFOLLOW; |
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ftsoptions &= ~FTS_PHYSICAL; |
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ftsoptions |= FTS_LOGICAL; |
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break; |
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case 'X': |
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isxargs = 1; |
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break; |
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case 'x': |
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ftsoptions &= ~FTS_NOSTAT; |
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ftsoptions |= FTS_XDEV; |
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break; |
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case '?': |
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default: |
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usage(); |
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} |
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argc -= optind; |
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argv += optind; |
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/* The first argument that starts with a -, or is a ! or a (, and all |
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* subsequent arguments shall be interpreted as an expression ... |
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* (POSIX.2). |
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*/ |
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✓✗ |
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while (*argv) { |
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✓✓✗✗
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if (**argv == '-' || |
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✓✗✗✓
|
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((**argv == '!' || **argv == '(') && (*argv)[1] == '\0')) |
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break; |
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*p++ = *argv++; |
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} |
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✗✓ |
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if (p == paths) |
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usage(); |
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*p = NULL; |
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✗✓ |
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if (!(paths2 = reallocarray(paths, p - paths + 1, sizeof(char *)))) |
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err(1, NULL); |
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paths = paths2; |
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dotfd = open(".", O_RDONLY, 0); |
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exit(find_execute(find_formplan(argv), paths)); |
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} |
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static void |
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usage(void) |
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{ |
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(void)fprintf(stderr, |
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"usage: find [-dHhLXx] [-f path] path ... [expression]\n"); |
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exit(1); |
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} |