diff options
Diffstat (limited to 'src/liblzma/lzma')
| -rw-r--r-- | src/liblzma/lzma/lzma_decoder.c | 13 | ||||
| -rw-r--r-- | src/liblzma/lzma/lzma_decoder.h | 10 |
2 files changed, 18 insertions, 5 deletions
diff --git a/src/liblzma/lzma/lzma_decoder.c b/src/liblzma/lzma/lzma_decoder.c index dfe83589..d4cefe0b 100644 --- a/src/liblzma/lzma/lzma_decoder.c +++ b/src/liblzma/lzma/lzma_decoder.c @@ -547,6 +547,9 @@ decode_real(lzma_coder *restrict coder, const uint8_t *restrict in, // Note that rep0 is known to have a safe value, thus we // don't need to check if we are wrapping the dictionary // when it isn't full yet. + if (unlikely(lz_is_empty(coder->lz))) + return true; + coder->lz.dict[coder->lz.pos] = lz_get_byte(coder->lz, rep0); ++coder->lz.pos; @@ -698,7 +701,6 @@ lzma_lzma_decoder_init(lzma_next_coder *next, lzma_allocator *allocator, { const lzma_ret ret = lzma_lz_decoder_reset( &next->coder->lz, allocator, &decode_real, - filters[0].uncompressed_size, options->dictionary_size, MATCH_MAX_LEN); if (ret != LZMA_OK) { lzma_literal_end(&next->coder->literal_coder, @@ -785,6 +787,15 @@ lzma_lzma_decoder_init(lzma_next_coder *next, lzma_allocator *allocator, } +extern void +lzma_lzma_decoder_uncompressed_size( + lzma_next_coder *next, lzma_vli uncompressed_size) +{ + next->coder->lz.uncompressed_size = uncompressed_size; + return; +} + + extern bool lzma_lzma_decode_properties(lzma_options_lzma *options, uint8_t byte) { diff --git a/src/liblzma/lzma/lzma_decoder.h b/src/liblzma/lzma/lzma_decoder.h index 929c2bff..9d57c7e5 100644 --- a/src/liblzma/lzma/lzma_decoder.h +++ b/src/liblzma/lzma/lzma_decoder.h @@ -24,10 +24,15 @@ #include "common.h" -/// \brief Allocates and initializes LZMA decoder +/// Allocates and initializes LZMA decoder extern lzma_ret lzma_lzma_decoder_init(lzma_next_coder *next, lzma_allocator *allocator, const lzma_filter_info *filters); +/// Set known uncompressed size. This is a hack needed to support +/// LZMA_Alone files that don't have EOPM. +extern void lzma_lzma_decoder_uncompressed_size( + lzma_next_coder *next, lzma_vli uncompressed_size); + /// \brief Decodes the LZMA Properties byte (lc/lp/pb) /// /// \return true if error occorred, false on success @@ -35,7 +40,4 @@ extern lzma_ret lzma_lzma_decoder_init(lzma_next_coder *next, extern bool lzma_lzma_decode_properties( lzma_options_lzma *options, uint8_t byte); -// There is no public lzma_lzma_encode() because lzma_lz_encode() works -// as a wrapper for it. - #endif |