imported original firmware WRT54GL_v4.30.11_11_US

1 files changed, 164 insertions, 0 deletions

diff --git a/release/src/router/busybox/gunzip.c b/release/src/router/busybox/gunzip.c
new file mode 100644
index 00000000..ab9ba8b9
--- /dev/null
+++ b/release/src/router/busybox/gunzip.c
@@ -0,0 +1,164 @@
+/* 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@lineo.com>, <andersee@debian.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.
+ */
+
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+#include "busybox.h"
+
+extern int gunzip_main(int argc, char **argv)
+{
+	FILE *in_file = stdin;
+	FILE *out_file = NULL;
+	struct stat stat_buf;
+
+	char *if_name = NULL;
+	char *of_name = NULL;
+	char *delete_file_name = NULL;
+
+	const int gunzip_to_stdout = 1;
+	const int gunzip_force = 2;
+	const int gunzip_test = 4;
+
+	int flags = 0;
+	int opt = 0;
+	int delete_old_file = FALSE;
+
+	/* if called as zcat */
+	if (strcmp(applet_name, "zcat") == 0)
+		flags |= gunzip_to_stdout;
+
+	while ((opt = getopt(argc, argv, "ctfhdq")) != -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;
+		case 'q':
+			error_msg("-q option not supported, ignored");
+			break;
+		case 'h':
+		default:
+			show_usage(); /* exit's inside usage */
+		}
+	}
+
+	/* Set input filename and number */
+	if (argv[optind] == NULL || strcmp(argv[optind], "-") == 0) {
+		flags |= gunzip_to_stdout;
+	} else {
+		if_name = strdup(argv[optind]);
+		/* Open input file */
+		in_file = xfopen(if_name, "r");
+
+		/* set the buffer size */
+		setvbuf(in_file, NULL, _IOFBF, 0x8000);
+
+		/* Get the time stamp on the input file. */
+		if (stat(if_name, &stat_buf) < 0) {
+			error_msg_and_die("Couldn't stat file %s", if_name);
+		}
+	}
+
+	/* Check that the input is sane.  */
+	if (isatty(fileno(in_file)) && (flags & gunzip_force) == 0)
+		error_msg_and_die("compressed data not read from terminal.  Use -f to force it.");
+
+	/* Set output filename and number */
+	if (flags & gunzip_test) {
+		out_file = xfopen("/dev/null", "w"); /* why does test use filenum 2 ? */
+	} else if (flags & gunzip_to_stdout) {
+		out_file = stdout;
+	} else {
+		char *extension;
+		int length = strlen(if_name);
+
+		delete_old_file = TRUE;
+		extension = strrchr(if_name, '.');
+		if (extension && strcmp(extension, ".gz") == 0) {
+			length -= 3;
+		} else if (extension && strcmp(extension, ".tgz") == 0) {
+			length -= 4;
+		} else {
+			error_msg_and_die("Invalid extension");
+		}
+		of_name = (char *) xcalloc(sizeof(char), length + 1);
+		strncpy(of_name, if_name, length);
+
+		/* Open output file */
+		out_file = xfopen(of_name, "w");
+
+		/* Set permissions on the file */
+		chmod(of_name, stat_buf.st_mode);
+	}
+
+	/* do the decompression, and cleanup */
+	if (unzip(in_file, out_file) == 0) {
+		/* Success, remove .gz file */
+		delete_file_name = if_name;
+	} else {
+		/* remove failed attempt */
+		delete_file_name = of_name;
+	}
+
+	fclose(out_file);
+	fclose(in_file);
+
+	if (delete_old_file == TRUE) {
+		if (unlink(delete_file_name) < 0) {
+			error_msg_and_die("Couldnt remove %s", delete_file_name);
+		}
+	}
+
+	free(of_name);
+
+	return(EXIT_SUCCESS);
+}