hush/archival/libunarchive/unpack_ar_archive.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"

void FAST_FUNC unpack_ar_archive(archive_handle_t *ar_archive)
{
	char magic[7];

	xread(ar_archive->src_fd, magic, 7);
	if (strncmp(magic, "!<arch>", 7) != 0) {
		bb_error_msg_and_die("invalid ar magic");
	}
	ar_archive->offset += 7;

	while (get_header_ar(ar_archive) == EXIT_SUCCESS)
		continue;
}
Standardize on the vi editing directives being on the first line. 2006-07-02 19:47:05 +00:00			`/* vi: set sw=4 ts=4: */`
New common unarchive code. 2002-09-25 02:47:48 +00:00			`/*`
- include proper headers. 2006-04-05 16:21:37 +00:00			`* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.`
New common unarchive code. 2002-09-25 02:47:48 +00:00			`*/`
delete tons of extra #includes 2007-05-31 22:42:12 +00:00
- include proper headers. 2006-04-05 16:21:37 +00:00			`#include "libbb.h"`
delete tons of extra #includes 2007-05-31 22:42:12 +00:00			`#include "unarchive.h"`
New common unarchive code. 2002-09-25 02:47:48 +00:00
*: introduce and use FAST_FUNC: regparm on i386, otherwise no-on text data bss dec hex filename 808035 611 6868 815514 c719a busybox_old 804472 611 6868 811951 c63af busybox_unstripped 2008-06-27 02:52:20 +00:00			`void FAST_FUNC unpack_ar_archive(archive_handle_t *ar_archive)`
New common unarchive code. 2002-09-25 02:47:48 +00:00			`{`
			`char magic[7];`

Cleaup read() and write() variants, plus a couple of new functions like xlseek and fdlength() for the new mkswap. 2006-07-16 08:14:35 +00:00			`xread(ar_archive->src_fd, magic, 7);`
New common unarchive code. 2002-09-25 02:47:48 +00:00			`if (strncmp(magic, "!<arch>", 7) != 0) {`
message string changes, mostly for consistency, also -32 bytes in .rodata 2006-10-20 13:28:22 +00:00			`bb_error_msg_and_die("invalid ar magic");`
New common unarchive code. 2002-09-25 02:47:48 +00:00			`}`
			`ar_archive->offset += 7;`

dpkg_deb: slight code shrink ar: reuse existing ar unpacking code get_header_tar: handle autodetection for tiny .tar.gz files too unarchive.h: do not include CONFIGed out things function old new delta get_header_tar 1521 1534 +13 dpkg_deb_main 400 380 -20 ar_main 260 196 -64 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 13/-84) Total: -71 bytes 2008-07-10 23:06:00 +00:00			`while (get_header_ar(ar_archive) == EXIT_SUCCESS)`
			`continue;`
New common unarchive code. 2002-09-25 02:47:48 +00:00			`}`