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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 21:12:04 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 21:12:04 +0000 |
commit | eac54b7c4aec25060d7bd856f7cdc290943d6aae (patch) | |
tree | 9a6d81c9f88df4698e746d63d14ddafeddd918b8 /src/liblzma/simple/simple_decoder.c | |
parent | Initial commit. (diff) | |
download | xz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.tar.xz xz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.zip |
Adding upstream version 5.4.1.upstream/5.4.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/liblzma/simple/simple_decoder.c')
-rw-r--r-- | src/liblzma/simple/simple_decoder.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/liblzma/simple/simple_decoder.c b/src/liblzma/simple/simple_decoder.c new file mode 100644 index 0000000..dc4d241 --- /dev/null +++ b/src/liblzma/simple/simple_decoder.c @@ -0,0 +1,40 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \file simple_decoder.c +/// \brief Properties decoder for simple filters +// +// Author: Lasse Collin +// +// This file has been put into the public domain. +// You can do whatever you want with this file. +// +/////////////////////////////////////////////////////////////////////////////// + +#include "simple_decoder.h" + + +extern lzma_ret +lzma_simple_props_decode(void **options, const lzma_allocator *allocator, + const uint8_t *props, size_t props_size) +{ + if (props_size == 0) + return LZMA_OK; + + if (props_size != 4) + return LZMA_OPTIONS_ERROR; + + lzma_options_bcj *opt = lzma_alloc( + sizeof(lzma_options_bcj), allocator); + if (opt == NULL) + return LZMA_MEM_ERROR; + + opt->start_offset = read32le(props); + + // Don't leave an options structure allocated if start_offset is zero. + if (opt->start_offset == 0) + lzma_free(opt, allocator); + else + *options = opt; + + return LZMA_OK; +} |