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Diffstat (limited to 'release/src/router/busybox/archival/gunzip.c')
-rw-r--r--release/src/router/busybox/archival/gunzip.c216
1 files changed, 0 insertions, 216 deletions
diff --git a/release/src/router/busybox/archival/gunzip.c b/release/src/router/busybox/archival/gunzip.c
deleted file mode 100644
index 7d382b89..00000000
--- a/release/src/router/busybox/archival/gunzip.c
+++ /dev/null
@@ -1,216 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Gzip implementation for busybox
- *
- * Based on GNU gzip v1.2.4 Copyright (C) 1992-1993 Jean-loup Gailly.
- *
- * Originally adjusted for busybox by Sven Rudolph <sr1@inf.tu-dresden.de>
- * based on gzip sources
- *
- * Adjusted further by Erik Andersen <andersen@codepoet.org> to support files as
- * well as stdin/stdout, and to generally behave itself wrt command line
- * handling.
- *
- * General cleanup to better adhere to the style guide and make use of standard
- * busybox functions by Glenn McGrath <bug1@optushome.com.au>
- *
- * 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
- *
- *
- * gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * The unzip code was written and put in the public domain by Mark Adler.
- * Portions of the lzw code are derived from the public domain 'compress'
- * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
- * Ken Turkowski, Dave Mack and Peter Jannesen.
- *
- * See the license_msg below and the file COPYING for the software license.
- * See the file algorithm.doc for the compression algorithms and file formats.
- */
-
-#if 0
-static char *license_msg[] = {
- " Copyright (C) 1992-1993 Jean-loup Gailly",
- " 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.",
- 0
-};
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#include "busybox.h"
-#include "unarchive.h"
-
-const char gunzip_to_stdout = 1;
-const char gunzip_force = 2;
-const char gunzip_test = 4;
-
-extern int gunzip_main(int argc, char **argv)
-{
- char status = EXIT_SUCCESS;
- char flags = 0;
- int opt;
-
- /* if called as zcat */
- if (strcmp(bb_applet_name, "zcat") == 0) {
- flags |= gunzip_to_stdout;
- }
-
- while ((opt = getopt(argc, argv, "ctfhd")) != -1) {
- switch (opt) {
- case 'c':
- flags |= gunzip_to_stdout;
- break;
- case 'f':
- flags |= gunzip_force;
- break;
- case 't':
- flags |= gunzip_test;
- break;
- case 'd': /* Used to convert gzip to gunzip. */
- break;
- default:
- bb_show_usage(); /* exit's inside usage */
- }
- }
-
- do {
- struct stat stat_buf;
- const char *old_path = argv[optind];
- const char *delete_path = NULL;
- char *new_path = NULL;
- int src_fd;
- int dst_fd;
-
- optind++;
-
- if (old_path == NULL || strcmp(old_path, "-") == 0) {
- src_fd = fileno(stdin);
- flags |= gunzip_to_stdout;
- } else {
- src_fd = bb_xopen(old_path, O_RDONLY);
-
- /* Get the time stamp on the input file. */
- if (stat(old_path, &stat_buf) < 0) {
- bb_error_msg_and_die("Couldn't stat file %s", old_path);
- }
- }
-
- /* Check that the input is sane. */
- if (isatty(src_fd) && ((flags & gunzip_force) == 0)) {
- bb_error_msg_and_die
- ("compressed data not read from terminal. Use -f to force it.");
- }
-
- /* Set output filename and number */
- if (flags & gunzip_test) {
- dst_fd = bb_xopen("/dev/null", O_WRONLY); /* why does test use filenum 2 ? */
- } else if (flags & gunzip_to_stdout) {
- dst_fd = fileno(stdout);
- } else {
- char *extension;
-
- new_path = bb_xstrdup(old_path);
-
- extension = strrchr(new_path, '.');
-#ifdef CONFIG_FEATURE_GUNZIP_UNCOMPRESS
- if (extension && (strcmp(extension, ".Z") == 0)) {
- *extension = '\0';
- } else
-#endif
- if (extension && (strcmp(extension, ".gz") == 0)) {
- *extension = '\0';
- } else if (extension && (strcmp(extension, ".tgz") == 0)) {
- extension[2] = 'a';
- extension[3] = 'r';
- } else {
- bb_error_msg_and_die("Invalid extension");
- }
-
- /* Open output file */
- dst_fd = bb_xopen(new_path, O_WRONLY | O_CREAT);
-
- /* Set permissions on the file */
- chmod(new_path, stat_buf.st_mode);
-
- /* If unzip succeeds remove the old file */
- delete_path = old_path;
- }
-
- /* do the decompression, and cleanup */
- if (bb_xread_char(src_fd) == 0x1f) {
- unsigned char magic2;
-
- magic2 = bb_xread_char(src_fd);
-#ifdef CONFIG_FEATURE_GUNZIP_UNCOMPRESS
- if (magic2 == 0x9d) {
- status = uncompress(src_fd, dst_fd);
- } else
-#endif
- if (magic2 == 0x8b) {
- check_header_gzip(src_fd);
- status = inflate(src_fd, dst_fd);
- if (status != 0) {
- bb_error_msg_and_die("Error inflating");
- }
- check_trailer_gzip(src_fd);
- } else {
- bb_error_msg_and_die("Invalid magic");
- }
- } else {
- bb_error_msg_and_die("Invalid magic");
- }
-
- if ((status != EXIT_SUCCESS) && (new_path)) {
- /* Unzip failed, remove new path instead of old path */
- delete_path = new_path;
- }
-
- if (dst_fd != fileno(stdout)) {
- close(dst_fd);
- }
- if (src_fd != fileno(stdin)) {
- close(src_fd);
- }
-
- /* delete_path will be NULL if in test mode or from stdin */
- if (delete_path && (unlink(delete_path) == -1)) {
- bb_error_msg_and_die("Couldn't remove %s", delete_path);
- }
-
- free(new_path);
-
- } while (optind < argc);
-
- return status;
-}
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