diff options
Diffstat (limited to '')
| -rw-r--r-- | lzip.h | 9 |
1 files changed, 5 insertions, 4 deletions
@@ -1,5 +1,5 @@ /* Clzip - LZMA lossless data compressor - Copyright (C) 2010-2021 Antonio Diaz Diaz. + Copyright (C) 2010-2022 Antonio Diaz Diaz. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -136,6 +136,7 @@ static inline void CRC32_init( void ) static inline void CRC32_update_byte( uint32_t * const crc, const uint8_t byte ) { *crc = crc32[(*crc^byte)&0xFF] ^ ( *crc >> 8 ); } +/* about as fast as it is possible without messing with endianness */ static inline void CRC32_update_buf( uint32_t * const crc, const uint8_t * const buffer, const int size ) @@ -269,12 +270,12 @@ static inline bool Lt_verify_consistency( const Lzip_trailer data ) { const unsigned crc = Lt_get_data_crc( data ); const unsigned long long dsize = Lt_get_data_size( data ); - const unsigned long long msize = Lt_get_member_size( data ); - const unsigned long long mlimit = ( 9 * dsize + 7 ) / 8 + min_member_size; - const unsigned long long dlimit = 7090 * ( msize - 26 ) - 1; if( ( crc == 0 ) != ( dsize == 0 ) ) return false; + const unsigned long long msize = Lt_get_member_size( data ); if( msize < min_member_size ) return false; + const unsigned long long mlimit = ( 9 * dsize + 7 ) / 8 + min_member_size; if( mlimit > dsize && msize > mlimit ) return false; + const unsigned long long dlimit = 7090 * ( msize - 26 ) - 1; if( dlimit > msize && dsize > dlimit ) return false; return true; } |