diff options
Diffstat (limited to 'archival/libunarchive/decompress_unxz.c')
-rw-r--r-- | archival/libunarchive/decompress_unxz.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/archival/libunarchive/decompress_unxz.c b/archival/libunarchive/decompress_unxz.c deleted file mode 100644 index ca42723..0000000 --- a/archival/libunarchive/decompress_unxz.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * This file uses XZ Embedded library code which is written - * by Lasse Collin <lasse.collin@tukaani.org> - * and Igor Pavlov <http://7-zip.org/> - * - * See README file in unxz/ directory for more information. - * - * This file is: - * Copyright (C) 2010 Denys Vlasenko <vda.linux@googlemail.com> - * Licensed under GPLv2, see file LICENSE in this source tree. - */ -#include "libbb.h" -#include "unarchive.h" - -#define XZ_FUNC FAST_FUNC -#define XZ_EXTERN static - -#define XZ_DEC_DYNALLOC - -/* Skip check (rather than fail) of unsupported hash functions */ -#define XZ_DEC_ANY_CHECK 1 - -/* We use our own crc32 function */ -#define XZ_INTERNAL_CRC32 0 -static uint32_t xz_crc32(const uint8_t *buf, size_t size, uint32_t crc) -{ - return ~crc32_block_endian0(~crc, buf, size, global_crc32_table); -} - -/* We use arch-optimized unaligned accessors */ -#define get_unaligned_le32(buf) ({ uint32_t v; move_from_unaligned32(v, buf); SWAP_LE32(v); }) -#define get_unaligned_be32(buf) ({ uint32_t v; move_from_unaligned32(v, buf); SWAP_BE32(v); }) -#define put_unaligned_le32(val, buf) move_to_unaligned16(buf, SWAP_LE32(val)) -#define put_unaligned_be32(val, buf) move_to_unaligned16(buf, SWAP_BE32(val)) - -#include "unxz/xz_dec_bcj.c" -#include "unxz/xz_dec_lzma2.c" -#include "unxz/xz_dec_stream.c" - -IF_DESKTOP(long long) int FAST_FUNC -unpack_xz_stream(int src_fd, int dst_fd) -{ - struct xz_buf iobuf; - struct xz_dec *state; - unsigned char *membuf; - IF_DESKTOP(long long) int total = 0; - - if (!global_crc32_table) - global_crc32_table = crc32_filltable(NULL, /*endian:*/ 0); - - memset(&iobuf, 0, sizeof(iobuf)); - /* Preload XZ file signature */ - membuf = (void*) strcpy(xmalloc(2 * BUFSIZ), HEADER_MAGIC); - iobuf.in = membuf; - iobuf.in_size = HEADER_MAGIC_SIZE; - iobuf.out = membuf + BUFSIZ; - iobuf.out_size = BUFSIZ; - - /* Limit memory usage to about 64 MiB. */ - state = xz_dec_init(XZ_DYNALLOC, 64*1024*1024); - - while (1) { - enum xz_ret r; - - if (iobuf.in_pos == iobuf.in_size) { - int rd = safe_read(src_fd, membuf, BUFSIZ); - if (rd < 0) { - bb_error_msg(bb_msg_read_error); - total = -1; - break; - } - iobuf.in_size = rd; - iobuf.in_pos = 0; - } -// bb_error_msg(">in pos:%d size:%d out pos:%d size:%d", -// iobuf.in_pos, iobuf.in_size, iobuf.out_pos, iobuf.out_size); - r = xz_dec_run(state, &iobuf); -// bb_error_msg("<in pos:%d size:%d out pos:%d size:%d r:%d", -// iobuf.in_pos, iobuf.in_size, iobuf.out_pos, iobuf.out_size, r); - if (iobuf.out_pos) { - xwrite(dst_fd, iobuf.out, iobuf.out_pos); - IF_DESKTOP(total += iobuf.out_pos;) - iobuf.out_pos = 0; - } - if (r == XZ_STREAM_END) { - break; - } - if (r != XZ_OK && r != XZ_UNSUPPORTED_CHECK) { - bb_error_msg("corrupted data"); - total = -1; - break; - } - } - xz_dec_end(state); - free(membuf); - - return total; -} |