defc1ea340
text data bss dec hex filename 808035 611 6868 815514 c719a busybox_old 804472 611 6868 811951 c63af busybox_unstripped
36 lines
951 B
C
36 lines
951 B
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
#include "libbb.h"
|
|
#include "unarchive.h"
|
|
|
|
char FAST_FUNC get_header_tar_gz(archive_handle_t *archive_handle)
|
|
{
|
|
#if BB_MMU
|
|
unsigned char magic[2];
|
|
#endif
|
|
|
|
/* Can't lseek over pipes */
|
|
archive_handle->seek = seek_by_read;
|
|
|
|
/* Check gzip magic only if open_transformer will invoke unpack_gz_stream (MMU case).
|
|
* Otherwise, it will invoke an external helper "gunzip -cf" (NOMMU case) which will
|
|
* need the header. */
|
|
#if BB_MMU
|
|
xread(archive_handle->src_fd, &magic, 2);
|
|
if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) {
|
|
bb_error_msg_and_die("invalid gzip magic");
|
|
}
|
|
#endif
|
|
|
|
archive_handle->src_fd = open_transformer(archive_handle->src_fd, unpack_gz_stream, "gunzip");
|
|
archive_handle->offset = 0;
|
|
while (get_header_tar(archive_handle) == EXIT_SUCCESS)
|
|
continue;
|
|
|
|
/* Can only do one file at a time */
|
|
return EXIT_FAILURE;
|
|
}
|