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/*-
* Copyright (c) 2011-2014, Mike Kazantsev
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "bsdcat_platform.h"
__FBSDID("$FreeBSD$");
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "bsdcat.h"
#include "err.h"
#define BYTES_PER_BLOCK (20*512)
static struct archive *a;
static struct archive_entry *ae;
static const char *bsdcat_current_path;
static int exit_status = 0;
void
usage(FILE *stream, int eval)
{
const char *p;
p = lafe_getprogname();
fprintf(stream,
"Usage: %s [-h] [--help] [--version] [--] [filenames...]\n", p);
exit(eval);
}
static void
version(void)
{
printf("bsdcat %s - %s \n",
BSDCAT_VERSION_STRING,
archive_version_details());
exit(0);
}
void
bsdcat_next(void)
{
if (a != NULL) {
if (archive_read_close(a) != ARCHIVE_OK)
bsdcat_print_error();
archive_read_free(a);
}
a = archive_read_new();
archive_read_support_filter_all(a);
archive_read_support_format_empty(a);
archive_read_support_format_raw(a);
}
void
bsdcat_print_error(void)
{
lafe_warnc(0, "%s: %s",
bsdcat_current_path, archive_error_string(a));
exit_status = 1;
}
void
bsdcat_read_to_stdout(const char* filename)
{
int r;
if (archive_read_open_filename(a, filename, BYTES_PER_BLOCK)
!= ARCHIVE_OK)
bsdcat_print_error();
else if (r = archive_read_next_header(a, &ae),
r != ARCHIVE_OK && r != ARCHIVE_EOF)
bsdcat_print_error();
else if (r == ARCHIVE_EOF)
/* for empty payloads don't try and read data */
;
else if (archive_read_data_into_fd(a, 1) != ARCHIVE_OK)
bsdcat_print_error();
if (archive_read_close(a) != ARCHIVE_OK)
bsdcat_print_error();
archive_read_free(a);
a = NULL;
}
int
main(int argc, char **argv)
{
struct bsdcat *bsdcat, bsdcat_storage;
int c;
bsdcat = &bsdcat_storage;
memset(bsdcat, 0, sizeof(*bsdcat));
lafe_setprogname(*argv, "bsdcat");
bsdcat->argv = argv;
bsdcat->argc = argc;
while ((c = bsdcat_getopt(bsdcat)) != -1) {
switch (c) {
case 'h':
usage(stdout, 0);
break;
case OPTION_VERSION:
version();
break;
default:
usage(stderr, 1);
}
}
bsdcat_next();
if (*bsdcat->argv == NULL) {
bsdcat_current_path = "<stdin>";
bsdcat_read_to_stdout(NULL);
} else {
while (*bsdcat->argv) {
bsdcat_current_path = *bsdcat->argv++;
bsdcat_read_to_stdout(bsdcat_current_path);
bsdcat_next();
}
archive_read_free(a); /* Help valgrind & friends */
}
exit(exit_status);
}
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