diff options
| -rw-r--r-- | src/liblzma/api/lzma/container.h | 21 | ||||
| -rw-r--r-- | src/liblzma/common/alone_decoder.c | 5 | ||||
| -rw-r--r-- | src/liblzma/common/auto_decoder.c | 5 | ||||
| -rw-r--r-- | src/liblzma/common/stream_decoder.c | 5 |
4 files changed, 20 insertions, 16 deletions
diff --git a/src/liblzma/api/lzma/container.h b/src/liblzma/api/lzma/container.h index 86991add..9fbf4df0 100644 --- a/src/liblzma/api/lzma/container.h +++ b/src/liblzma/api/lzma/container.h @@ -520,7 +520,10 @@ extern LZMA_API(lzma_ret) lzma_stream_buffer_encode( * * \param strm Pointer to properly prepared lzma_stream * \param memlimit Memory usage limit as bytes. Use UINT64_MAX - * to effectively disable the limiter. + * to effectively disable the limiter. liblzma + * 5.2.3 and earlier don't allow 0 here and return + * LZMA_PROG_ERROR; later versions treat 0 as if 1 + * had been specified. * \param flags Bitwise-or of zero or more of the decoder flags: * LZMA_TELL_NO_CHECK, LZMA_TELL_UNSUPPORTED_CHECK, * LZMA_TELL_ANY_CHECK, LZMA_CONCATENATED @@ -544,7 +547,10 @@ extern LZMA_API(lzma_ret) lzma_stream_decoder( * * \param strm Pointer to properly prepared lzma_stream * \param memlimit Memory usage limit as bytes. Use UINT64_MAX - * to effectively disable the limiter. + * to effectively disable the limiter. liblzma + * 5.2.3 and earlier don't allow 0 here and return + * LZMA_PROG_ERROR; later versions treat 0 as if 1 + * had been specified. * \param flags Bitwise-or of flags, or zero for no flags. * * \return - LZMA_OK: Initialization was successful. @@ -560,9 +566,16 @@ extern LZMA_API(lzma_ret) lzma_auto_decoder( /** * \brief Initialize .lzma decoder (legacy file format) * + * \param strm Pointer to properly prepared lzma_stream + * \param memlimit Memory usage limit as bytes. Use UINT64_MAX + * to effectively disable the limiter. liblzma + * 5.2.3 and earlier don't allow 0 here and return + * LZMA_PROG_ERROR; later versions treat 0 as if 1 + * had been specified. + * * Valid `action' arguments to lzma_code() are LZMA_RUN and LZMA_FINISH. - * There is no need to use LZMA_FINISH, but allowing it may simplify - * certain types of applications. + * There is no need to use LZMA_FINISH, but it's allowed because it may + * simplify certain types of applications. * * \return - LZMA_OK * - LZMA_MEM_ERROR diff --git a/src/liblzma/common/alone_decoder.c b/src/liblzma/common/alone_decoder.c index dd681765..77d0a9b1 100644 --- a/src/liblzma/common/alone_decoder.c +++ b/src/liblzma/common/alone_decoder.c @@ -203,9 +203,6 @@ lzma_alone_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator, { lzma_next_coder_init(&lzma_alone_decoder_init, next, allocator); - if (memlimit == 0) - return LZMA_PROG_ERROR; - lzma_alone_coder *coder = next->coder; if (coder == NULL) { @@ -227,7 +224,7 @@ lzma_alone_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator, coder->options.preset_dict = NULL; coder->options.preset_dict_size = 0; coder->uncompressed_size = 0; - coder->memlimit = memlimit; + coder->memlimit = my_max(1, memlimit); coder->memusage = LZMA_MEMUSAGE_BASE; return LZMA_OK; diff --git a/src/liblzma/common/auto_decoder.c b/src/liblzma/common/auto_decoder.c index 09acd6dc..479b150f 100644 --- a/src/liblzma/common/auto_decoder.c +++ b/src/liblzma/common/auto_decoder.c @@ -155,9 +155,6 @@ auto_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator, { lzma_next_coder_init(&auto_decoder_init, next, allocator); - if (memlimit == 0) - return LZMA_PROG_ERROR; - if (flags & ~LZMA_SUPPORTED_FLAGS) return LZMA_OPTIONS_ERROR; @@ -175,7 +172,7 @@ auto_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator, coder->next = LZMA_NEXT_CODER_INIT; } - coder->memlimit = memlimit; + coder->memlimit = my_max(1, memlimit); coder->flags = flags; coder->sequence = SEQ_INIT; diff --git a/src/liblzma/common/stream_decoder.c b/src/liblzma/common/stream_decoder.c index 7ae7a670..fdd8ff2f 100644 --- a/src/liblzma/common/stream_decoder.c +++ b/src/liblzma/common/stream_decoder.c @@ -422,9 +422,6 @@ lzma_stream_decoder_init( { lzma_next_coder_init(&lzma_stream_decoder_init, next, allocator); - if (memlimit == 0) - return LZMA_PROG_ERROR; - if (flags & ~LZMA_SUPPORTED_FLAGS) return LZMA_OPTIONS_ERROR; @@ -444,7 +441,7 @@ lzma_stream_decoder_init( coder->index_hash = NULL; } - coder->memlimit = memlimit; + coder->memlimit = my_max(1, memlimit); coder->memusage = LZMA_MEMUSAGE_BASE; coder->tell_no_check = (flags & LZMA_TELL_NO_CHECK) != 0; coder->tell_unsupported_check |