hush/archival/unzip.c

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/* vi: set sw=4 ts=4: */
/*
* Mini unzip implementation for busybox
*
* Copyright (C) 2001 by Laurence Anderson
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <fcntl.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "unarchive.h"
#include "busybox.h"
extern int unzip_main(int argc, char **argv)
{
FILE *src_stream;
int extract_function = extract_all_to_fs | extract_create_leading_dirs;
char **extract_names = NULL;
char **exclude_names = NULL;
int opt = 0;
int num_of_entries = 0;
int exclude = 0;
char *outdir = "./";
FILE *msgout = stdout;
while ((opt = getopt(argc, argv, "lnopqxd:")) != -1) {
switch (opt) {
case 'l':
extract_function |= extract_verbose_list;
extract_function ^= extract_all_to_fs;
break;
case 'n':
break;
case 'o':
extract_function |= extract_unconditional;
break;
case 'p':
extract_function |= extract_to_stdout;
extract_function ^= extract_all_to_fs;
/* FALLTHROUGH */
case 'q':
msgout = xfopen("/dev/null", "w");
break;
case 'd':
outdir = xstrdup(optarg);
strcat(outdir, "/");
break;
case 'x':
exclude = 1;
break;
}
}
if (optind == argc) {
show_usage();
}
if (*argv[optind] == '-') src_stream = stdin;
else src_stream = xfopen(argv[optind++], "r");
while (optind < argc) {
if (exclude) {
exclude_names = xrealloc(exclude_names, sizeof(char *) * (num_of_entries + 2));
exclude_names[num_of_entries] = xstrdup(argv[optind]);
} else {
extract_names = xrealloc(extract_names, sizeof(char *) * (num_of_entries + 2));
extract_names[num_of_entries] = xstrdup(argv[optind]);
}
num_of_entries++;
if (exclude) exclude_names[num_of_entries] = NULL;
else extract_names[num_of_entries] = NULL;
optind++;
}
unarchive(src_stream, msgout, &get_header_zip, extract_function, outdir, extract_names, exclude_names);
return EXIT_SUCCESS;
}