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/* vi: set sw=4 ts=4: */
/*
* Modified for busybox by Glenn McGrath <bug1@iinet.net.au>
* Added support output to stdout by Thomas Lundquist <thomasez@zelow.no>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "busybox.h"
#include "unarchive.h"
#define BUNZIP2_OPT_STDOUT 1
#define BUNZIP2_OPT_FORCE 2
int bunzip2_main(int argc, char **argv)
{
char *filename;
unsigned long opt;
int status, src_fd, dst_fd;
opt = bb_getopt_ulflags(argc, argv, "cf");
/* Set input filename and number */
filename = argv[optind];
if ((filename) && (filename[0] != '-') && (filename[1] != '\0')) {
/* Open input file */
src_fd = bb_xopen(filename, O_RDONLY);
} else {
src_fd = STDIN_FILENO;
filename = 0;
}
/* if called as bzcat force the stdout flag */
if ((opt & BUNZIP2_OPT_STDOUT) || bb_applet_name[2] == 'c')
filename = 0;
/* Check that the input is sane. */
if (isatty(src_fd) && (opt & BUNZIP2_OPT_FORCE) == 0) {
bb_error_msg_and_die("Compressed data not read from terminal. Use -f to force it.");
}
if (filename) {
struct stat stat_buf;
char *extension=filename+strlen(filename)-4;
if (strcmp(extension, ".bz2") != 0) {
bb_error_msg_and_die("Invalid extension");
}
xstat(filename, &stat_buf);
*extension=0;
dst_fd = bb_xopen3(filename, O_WRONLY | O_CREAT, stat_buf.st_mode);
} else dst_fd = STDOUT_FILENO;
status = uncompressStream(src_fd, dst_fd);
if(filename) {
if (!status) filename[strlen(filename)]='.';
if (unlink(filename) < 0) {
bb_error_msg_and_die("Couldn't remove %s", filename);
}
}
return status;
}
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