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Fix possible partial decompression of LZIP.

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This commit is contained in:
Natalia Portillo
2021-10-21 05:02:02 +01:00
parent f677b716f0
commit 1cfa178431
1 changed files with 15 additions and 2 deletions
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17
lzip.c
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@@ -32,7 +32,7 @@ AARU_EXPORT int32_t AARU_CALL lzip_decode_buffer(uint8_t* dst_buffer,
void* ctx;
enum LZ_Errno lz_err;
int32_t in_pos = 0, out_pos = 0, in_size;
int rd;
// Initialize the decoder
ctx = LZ_decompress_open();
lz_err = LZ_decompress_errno(ctx);
@@ -57,13 +57,26 @@ AARU_EXPORT int32_t AARU_CALL lzip_decode_buffer(uint8_t* dst_buffer,
in_pos += in_size;
int rd = LZ_decompress_read(ctx, dst_buffer + out_pos, dst_size);
rd = LZ_decompress_read(ctx, dst_buffer + out_pos, dst_size);
out_pos += rd;
if(LZ_decompress_finished(ctx) == 1) break;
}
LZ_decompress_finish(ctx);
if(out_pos < dst_size)
{
do {
rd = LZ_decompress_read(ctx, dst_buffer + out_pos, dst_size);
out_pos += rd;
if(LZ_compress_finished(ctx) == 1) break;
} while(rd > 0 && out_pos < dst_size);
}
// Free buffers
LZ_decompress_close(ctx);