# HG changeset patch # User Pascal Bellard # Date 1363678794 -3600 # Node ID 016b98861bed701f3d00b640cb21200477ebbd05 # Parent 6d11967fcb51f9b0f5f691e113974a8b0300a681 busybox: unxz patch diff -r 6d11967fcb51 -r 016b98861bed busybox/receipt --- a/busybox/receipt Mon Mar 18 20:48:03 2013 +0100 +++ b/busybox/receipt Tue Mar 19 08:39:54 2013 +0100 @@ -40,6 +40,7 @@ cmdline.u diff.u nfs-segfault.u +xz.u EOT cp $stuff/$PACKAGE-${VERSION%.*}.config .config } diff -r 6d11967fcb51 -r 016b98861bed busybox/stuff/busybox-1.21-xz.u --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/busybox/stuff/busybox-1.21-xz.u Tue Mar 19 08:39:54 2013 +0100 @@ -0,0 +1,84 @@ +--- busybox-1.21.0/archival/libarchive/decompress_unxz.c ++++ busybox-1.21.0/archival/libarchive/decompress_unxz.c +@@ -40,6 +40,7 @@ static uint32_t xz_crc32(const uint8_t * + IF_DESKTOP(long long) int FAST_FUNC + unpack_xz_stream(transformer_aux_data_t *aux, int src_fd, int dst_fd) + { ++ enum xz_ret xz_result; + struct xz_buf iobuf; + struct xz_dec *state; + unsigned char *membuf; +@@ -63,9 +64,8 @@ unpack_xz_stream(transformer_aux_data_t + /* Limit memory usage to about 64 MiB. */ + state = xz_dec_init(XZ_DYNALLOC, 64*1024*1024); + ++ xz_result = X_OK; + while (1) { +- enum xz_ret r; +- + if (iobuf.in_pos == iobuf.in_size) { + int rd = safe_read(src_fd, membuf, BUFSIZ); + if (rd < 0) { +@@ -73,28 +73,57 @@ unpack_xz_stream(transformer_aux_data_t + total = -1; + break; + } ++ if (rd == 0 && xz_result == XZ_STREAM_END) ++ break; + iobuf.in_size = rd; + iobuf.in_pos = 0; + } ++ if (xz_result == XZ_STREAM_END) { ++ /* ++ * Try to start decoding next concatenated stream. ++ * Stream padding must always be a multiple of four ++ * bytes to preserve four-byte alignment. To keep the ++ * code slightly smaller, we aren't as strict here as ++ * the .xz spec requires. We just skip all zero-bytes ++ * without checking the alignment and thus can accept ++ * files that aren't valid, e.g. the XZ utils test ++ * files bad-0pad-empty.xz and bad-0catpad-empty.xz. ++ */ ++ do { ++ if (membuf[iobuf.in_pos] != 0) { ++ xz_dec_reset(state); ++ goto do_run; ++ } ++ iobuf.in_pos++; ++ } while (iobuf.in_pos < iobuf.in_size); ++ } ++ do_run: + // 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); ++ xz_result = xz_dec_run(state, &iobuf); + // bb_error_msg("