From c531b9a3e4a90fd7c91c78a6991e30bfe0134f34 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Mon, 31 Oct 2011 01:05:16 +0100 Subject: bzcat: fix unpacking of more than one file, and unpacking of zero-size bz2. Closes 4393 Signed-off-by: Denys Vlasenko --- archival/libarchive/decompress_bunzip2.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'archival/libarchive/decompress_bunzip2.c') diff --git a/archival/libarchive/decompress_bunzip2.c b/archival/libarchive/decompress_bunzip2.c index cd31447..c4640d4 100644 --- a/archival/libarchive/decompress_bunzip2.c +++ b/archival/libarchive/decompress_bunzip2.c @@ -752,7 +752,14 @@ unpack_bz2_stream(int src_fd, int dst_fd) } } - if (i != RETVAL_LAST_BLOCK) { + if (i != RETVAL_LAST_BLOCK + /* Observed case when i == RETVAL_OK: + * "bzcat z.bz2", where "z.bz2" is a bzipped zero-length file + * (to be exact, z.bz2 is exactly these 14 bytes: + * 42 5a 68 39 17 72 45 38 50 90 00 00 00 00). + */ + && i != RETVAL_OK + ) { bb_error_msg("bunzip error %d", i); break; } -- cgit v1.1