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| author | Yann Collet <yann.collet.73@gmail.com> | 2015-04-14 18:21:40 (GMT) |
|---|---|---|
| committer | Yann Collet <yann.collet.73@gmail.com> | 2015-04-14 18:21:40 (GMT) |
| commit | 0dc8308f4c87a8e20d19eeaaea848c5ea1978eb4 (patch) | |
| tree | 8f05d25293bafc1cd6991c87193616a859878b01 | |
| parent | 348f5099e42c23393ec9c8e6b403f4bca99bbb41 (diff) | |
| parent | d535214e6101f5bb4697208d439306ca69399c7c (diff) | |
| download | lz4-0dc8308f4c87a8e20d19eeaaea848c5ea1978eb4.zip lz4-0dc8308f4c87a8e20d19eeaaea848c5ea1978eb4.tar.gz lz4-0dc8308f4c87a8e20d19eeaaea848c5ea1978eb4.tar.bz2 | |
Merge pull request #89 from drcrallen/descriptiveFrameErrors
Add more descriptive frame errors
| -rw-r--r-- | lib/lz4frame.c | 14 | ||||
| -rw-r--r-- | lib/lz4frame_static.h | 5 |
2 files changed, 12 insertions, 7 deletions
diff --git a/lib/lz4frame.c b/lib/lz4frame.c index 31cf9a5..df41f63 100644 --- a/lib/lz4frame.c +++ b/lib/lz4frame.c @@ -861,16 +861,16 @@ static size_t LZ4F_decodeHeader(LZ4F_dctx_internal_t* dctxPtr, const void* srcVo blockSizeID = (BD>>4) & _3BITS; /* validate */ - if (version != 1) return (size_t)-ERROR_GENERIC; /* Version Number, only supported value */ - if (blockChecksumFlag != 0) return (size_t)-ERROR_GENERIC; /* Only supported value for the time being */ - if (((FLG>>0)&_2BITS) != 0) return (size_t)-ERROR_GENERIC; /* Reserved bits */ - if (((BD>>7)&_1BIT) != 0) return (size_t)-ERROR_GENERIC; /* Reserved bit */ - if (blockSizeID < 4) return (size_t)-ERROR_GENERIC; /* 4-7 only supported values for the time being */ - if (((BD>>0)&_4BITS) != 0) return (size_t)-ERROR_GENERIC; /* Reserved bits */ + if (version != 1) return (size_t)-ERROR_version_wrong; /* Version Number, only supported value */ + if (blockChecksumFlag != 0) return (size_t)-ERROR_unsupported_checksum; /* Only supported value for the time being */ + if (((FLG>>0)&_2BITS) != 0) return (size_t)-ERROR_reserved_flag_set; /* Reserved bits */ + if (((BD>>7)&_1BIT) != 0) return (size_t)-ERROR_reserved_flag_set; /* Reserved bit */ + if (blockSizeID < 4) return (size_t)-ERROR_unsupported_block_size; /* 4-7 only supported values for the time being */ + if (((BD>>0)&_4BITS) != 0) return (size_t)-ERROR_reserved_flag_set; /* Reserved bits */ /* check */ HC = LZ4F_headerChecksum(srcPtr+4, frameHeaderSize-5); - if (HC != srcPtr[frameHeaderSize-1]) return (size_t)-ERROR_GENERIC; /* Bad header checksum error */ + if (HC != srcPtr[frameHeaderSize-1]) return (size_t)-ERROR_header_checksum_invalid; /* Bad header checksum error */ /* save */ dctxPtr->frameInfo.blockMode = (blockMode_t)blockMode; diff --git a/lib/lz4frame_static.h b/lib/lz4frame_static.h index 2e56400..b608d23 100644 --- a/lib/lz4frame_static.h +++ b/lib/lz4frame_static.h @@ -57,6 +57,11 @@ extern "C" { ITEM(ERROR_wrongSrcPtr) \ ITEM(ERROR_decompressionFailed) \ ITEM(ERROR_checksum_invalid) \ + ITEM(ERROR_version_wrong) \ + ITEM(ERROR_unsupported_checksum) \ + ITEM(ERROR_reserved_flag_set) \ + ITEM(ERROR_unsupported_block_size) \ + ITEM(ERROR_header_checksum_invalid) \ ITEM(ERROR_maxCode) #define LZ4F_GENERATE_ENUM(ENUM) ENUM, |