f1951fd745
Update vendor/libarchive/dist to git 2c8c83b9731ff822fad6cc8c670ea5519c366a14 Important vendor changes: PR #993: Chdir to -C directory for metalog processing OSS-Fuzz #4969: Check size of the extended time field in zip archives PR #973: Record informational compression level in gzip header MFC after: 1 week
157 lines
3.7 KiB
C
157 lines
3.7 KiB
C
/*-
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* Copyright (c) 2011-2014, Mike Kazantsev
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "bsdcat_platform.h"
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__FBSDID("$FreeBSD$");
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#include <stdio.h>
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include "bsdcat.h"
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#include "err.h"
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#define BYTES_PER_BLOCK (20*512)
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static struct archive *a;
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static struct archive_entry *ae;
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static const char *bsdcat_current_path;
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static int exit_status = 0;
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void
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usage(FILE *stream, int eval)
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{
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const char *p;
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p = lafe_getprogname();
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fprintf(stream,
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"Usage: %s [-h] [--help] [--version] [--] [filenames...]\n", p);
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exit(eval);
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}
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static void
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version(void)
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{
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printf("bsdcat %s - %s \n",
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BSDCAT_VERSION_STRING,
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archive_version_details());
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exit(0);
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}
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void
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bsdcat_next(void)
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{
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if (a != NULL) {
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if (archive_read_close(a) != ARCHIVE_OK)
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bsdcat_print_error();
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archive_read_free(a);
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}
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a = archive_read_new();
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archive_read_support_filter_all(a);
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archive_read_support_format_empty(a);
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archive_read_support_format_raw(a);
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}
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void
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bsdcat_print_error(void)
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{
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lafe_warnc(0, "%s: %s",
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bsdcat_current_path, archive_error_string(a));
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exit_status = 1;
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}
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void
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bsdcat_read_to_stdout(const char* filename)
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{
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int r;
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if (archive_read_open_filename(a, filename, BYTES_PER_BLOCK)
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!= ARCHIVE_OK)
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bsdcat_print_error();
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else if (r = archive_read_next_header(a, &ae),
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r != ARCHIVE_OK && r != ARCHIVE_EOF)
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bsdcat_print_error();
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else if (r == ARCHIVE_EOF)
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/* for empty payloads don't try and read data */
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;
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else if (archive_read_data_into_fd(a, 1) != ARCHIVE_OK)
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bsdcat_print_error();
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if (archive_read_close(a) != ARCHIVE_OK)
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bsdcat_print_error();
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archive_read_free(a);
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a = NULL;
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}
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int
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main(int argc, char **argv)
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{
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struct bsdcat *bsdcat, bsdcat_storage;
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int c;
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bsdcat = &bsdcat_storage;
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memset(bsdcat, 0, sizeof(*bsdcat));
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lafe_setprogname(*argv, "bsdcat");
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bsdcat->argv = argv;
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bsdcat->argc = argc;
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while ((c = bsdcat_getopt(bsdcat)) != -1) {
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switch (c) {
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case 'h':
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usage(stdout, 0);
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break;
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case OPTION_VERSION:
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version();
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break;
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default:
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usage(stderr, 1);
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}
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}
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bsdcat_next();
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if (*bsdcat->argv == NULL) {
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bsdcat_current_path = "<stdin>";
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bsdcat_read_to_stdout(NULL);
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} else {
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while (*bsdcat->argv) {
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bsdcat_current_path = *bsdcat->argv++;
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bsdcat_read_to_stdout(bsdcat_current_path);
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bsdcat_next();
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}
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archive_read_free(a); /* Help valgrind & friends */
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}
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exit(exit_status);
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}
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