mirror of
https://github.com/sheumann/hush.git
synced 2024-11-05 06:07:00 +00:00
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini cpio implementation for busybox
|
|
*
|
|
* Copyright (C) 2001 by Glenn McGrath
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*
|
|
* Limitations:
|
|
* Doesn't check CRC's
|
|
* Only supports new ASCII and CRC formats
|
|
*
|
|
*/
|
|
#include <fcntl.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include "unarchive.h"
|
|
#include "busybox.h"
|
|
|
|
#define CPIO_OPT_EXTRACT 0x01
|
|
#define CPIO_OPT_TEST 0x02
|
|
#define CPIO_OPT_UNCONDITIONAL 0x04
|
|
#define CPIO_OPT_VERBOSE 0x08
|
|
#define CPIO_OPT_FILE 0x10
|
|
#define CPIO_OPT_CREATE_LEADING_DIR 0x20
|
|
#define CPIO_OPT_PRESERVE_MTIME 0x40
|
|
|
|
int cpio_main(int argc, char **argv)
|
|
{
|
|
archive_handle_t *archive_handle;
|
|
char *cpio_filename = NULL;
|
|
unsigned long opt;
|
|
|
|
/* Initialise */
|
|
archive_handle = init_handle();
|
|
archive_handle->src_fd = STDIN_FILENO;
|
|
archive_handle->seek = seek_by_char;
|
|
archive_handle->flags = ARCHIVE_EXTRACT_NEWER | ARCHIVE_PRESERVE_DATE;
|
|
|
|
opt = bb_getopt_ulflags(argc, argv, "ituvF:dm", &cpio_filename);
|
|
|
|
/* One of either extract or test options must be given */
|
|
if ((opt & (CPIO_OPT_TEST | CPIO_OPT_EXTRACT)) == 0) {
|
|
bb_show_usage();
|
|
}
|
|
|
|
if (opt & CPIO_OPT_TEST) {
|
|
/* if both extract and test options are given, ignore extract option */
|
|
if (opt & CPIO_OPT_EXTRACT) {
|
|
opt &= ~CPIO_OPT_EXTRACT;
|
|
}
|
|
archive_handle->action_header = header_list;
|
|
}
|
|
if (opt & CPIO_OPT_EXTRACT) {
|
|
archive_handle->action_data = data_extract_all;
|
|
}
|
|
if (opt & CPIO_OPT_UNCONDITIONAL) {
|
|
archive_handle->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
|
|
archive_handle->flags &= ~ARCHIVE_EXTRACT_NEWER;
|
|
}
|
|
if (opt & CPIO_OPT_VERBOSE) {
|
|
if (archive_handle->action_header == header_list) {
|
|
archive_handle->action_header = header_verbose_list;
|
|
} else {
|
|
archive_handle->action_header = header_list;
|
|
}
|
|
}
|
|
if (cpio_filename) { /* CPIO_OPT_FILE */
|
|
archive_handle->src_fd = xopen(cpio_filename, O_RDONLY);
|
|
archive_handle->seek = seek_by_jump;
|
|
}
|
|
if (opt & CPIO_OPT_CREATE_LEADING_DIR) {
|
|
archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
|
|
}
|
|
|
|
while (optind < argc) {
|
|
archive_handle->filter = filter_accept_list;
|
|
llist_add_to(&(archive_handle->accept), argv[optind]);
|
|
optind++;
|
|
}
|
|
|
|
while (get_header_cpio(archive_handle) == EXIT_SUCCESS);
|
|
|
|
return(EXIT_SUCCESS);
|
|
}
|