From 4b2126b14346d29e15ddd4867930e96c857e168c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 7 Nov 2015 14:46:00 +0100 Subject: Merging upstream version 1.3. Signed-off-by: Daniel Baumann --- lzcheck.cc | 230 ------------------------------------------------------------- 1 file changed, 230 deletions(-) delete mode 100644 lzcheck.cc (limited to 'lzcheck.cc') diff --git a/lzcheck.cc b/lzcheck.cc deleted file mode 100644 index ce53a41..0000000 --- a/lzcheck.cc +++ /dev/null @@ -1,230 +0,0 @@ -/* Lzcheck - A test program for the lzlib library - Copyright (C) 2009, 2010, 2011 Antonio Diaz Diaz. - - This program is free software: you have unlimited permission - to copy, distribute and modify it. - - Usage is: - lzcheck filename.txt - - This program reads the specified text file and then compresses it, - line by line, to test the flushing mechanism and the member - restart/reset/sync functions. -*/ - -#define _FILE_OFFSET_BITS 64 - -#include -#include -#include -#include -#include -#include - -#include "lzlib.h" - -#ifndef LLONG_MAX -#define LLONG_MAX 0x7FFFFFFFFFFFFFFFLL -#endif -#ifndef LLONG_MIN -#define LLONG_MIN (-LLONG_MAX - 1LL) -#endif -#ifndef ULLONG_MAX -#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL -#endif - -const int buffer_size = 32768; -uint8_t in_buffer[buffer_size]; -uint8_t mid_buffer[buffer_size]; -uint8_t out_buffer[buffer_size]; - - -int main( const int argc, const char * const argv[] ) - { - if( argc < 2 ) - { - std::fprintf( stderr, "Usage: lzcheck filename.txt\n" ); - return 1; - } - - FILE *file = std::fopen( argv[1], "rb" ); - if( !file ) - { - std::fprintf( stderr, - "lzcheck: Can't open file `%s' for reading\n", argv[1] ); - return 1; - } -// std::fprintf( stderr, "lzcheck: Testing file `%s'\n", argv[1] ); - - const int dictionary_size = 1 << 20; - const int match_len_limit = 36; - const long long member_size = LLONG_MAX; - LZ_Encoder * encoder = LZ_compress_open( dictionary_size, match_len_limit, - member_size ); - if( !encoder || LZ_compress_errno( encoder ) != LZ_ok ) - { - const bool mem_error = ( LZ_compress_errno( encoder ) == LZ_mem_error ); - LZ_compress_close( encoder ); - if( mem_error ) - { - std::fprintf( stderr, "lzcheck: Not enough memory.\n" ); - return 1; - } - std::fprintf( stderr, - "lzcheck: internal error: Invalid argument to encoder.\n" ); - return 3; - } - - LZ_Decoder * decoder = LZ_decompress_open(); - if( !decoder || LZ_decompress_errno( decoder ) != LZ_ok ) - { - LZ_decompress_close( decoder ); - std::fprintf( stderr, "lzcheck: Not enough memory.\n" ); - return 1; - } - - int retval = 0; - while( retval <= 1 ) - { - const int read_size = std::fread( in_buffer, 1, buffer_size, file ); - if( read_size <= 0 ) break; // end of file - - for( int l = 0, r = 1; r <= read_size; l = r, ++r ) - { - while( r < read_size && in_buffer[r-1] != '\n' ) ++r; - const int in_size = LZ_compress_write( encoder, in_buffer + l, r - l ); - if( in_size < r - l ) r = l + in_size; - LZ_compress_sync_flush( encoder ); - const int mid_size = LZ_compress_read( encoder, mid_buffer, buffer_size ); - if( mid_size < 0 ) - { - std::fprintf( stderr, "lzcheck: LZ_compress_read error: %s.\n", - LZ_strerror( LZ_compress_errno( encoder ) ) ); - retval = 3; break; - } - LZ_decompress_write( decoder, mid_buffer, mid_size ); - const int out_size = LZ_decompress_read( decoder, out_buffer, buffer_size ); - if( out_size < 0 ) - { - std::fprintf( stderr, "lzcheck: LZ_decompress_read error: %s.\n", - LZ_strerror( LZ_decompress_errno( decoder ) ) ); - retval = 3; break; - } - - if( out_size != in_size || std::memcmp( in_buffer + l, out_buffer, out_size ) ) - { - std::fprintf( stderr, "lzcheck: Sync error at pos %d. in_size = %d, out_size = %d\n", - l, in_size, out_size ); - for( int i = 0; i < in_size; ++i ) - std::fputc( in_buffer[l+i], stderr ); - if( in_buffer[l+in_size-1] != '\n' ) - std::fputc( '\n', stderr ); - for( int i = 0; i < out_size; ++i ) - std::fputc( out_buffer[i], stderr ); - std::fputc( '\n', stderr ); - retval = 1; - } - } - } - - if( retval <= 1 ) - { - std::rewind( file ); - if( LZ_compress_finish( encoder ) < 0 || - LZ_decompress_write( decoder, mid_buffer, LZ_compress_read( encoder, mid_buffer, buffer_size ) ) < 0 || - LZ_decompress_read( decoder, out_buffer, buffer_size ) != 0 || - LZ_compress_restart_member( encoder, member_size ) < 0 ) - { - std::fprintf( stderr, "lzcheck: Can't finish member: %s.\n", - LZ_strerror( LZ_decompress_errno( decoder ) ) ); - retval = 3; - } - } - - while( retval <= 1 ) - { - const int read_size = std::fread( in_buffer, 1, buffer_size / 2, file ); - if( read_size <= 0 ) break; // end of file - - for( int l = 0, r = 1; r <= read_size; l = r, ++r ) - { - while( r < read_size && in_buffer[r-1] != '\n' ) ++r; - const int leading_garbage = (l == 0) ? std::min( r, read_size / 2 ) : 0; - const int in_size = LZ_compress_write( encoder, in_buffer + l, r - l ); - if( in_size < r - l ) r = l + in_size; - LZ_compress_sync_flush( encoder ); - if( leading_garbage ) - std::memset( mid_buffer, in_buffer[0], leading_garbage ); - const int mid_size = LZ_compress_read( encoder, - mid_buffer + leading_garbage, - buffer_size - leading_garbage ); - if( mid_size < 0 ) - { - std::fprintf( stderr, "lzcheck: LZ_compress_read error: %s.\n", - LZ_strerror( LZ_compress_errno( encoder ) ) ); - retval = 3; break; - } - LZ_decompress_write( decoder, mid_buffer, mid_size + leading_garbage ); - int out_size = LZ_decompress_read( decoder, out_buffer, buffer_size ); - if( out_size < 0 ) - { - if( LZ_decompress_errno( decoder ) == LZ_header_error || - LZ_decompress_errno( decoder ) == LZ_data_error ) - { - LZ_decompress_sync_to_member( decoder ); // remove leading garbage - out_size = LZ_decompress_read( decoder, out_buffer, buffer_size ); - } - if( out_size < 0 ) - { - std::fprintf( stderr, "lzcheck: LZ_decompress_read error: %s.\n", - LZ_strerror( LZ_decompress_errno( decoder ) ) ); - retval = 3; break; - } - } - - if( out_size != in_size || std::memcmp( in_buffer + l, out_buffer, out_size ) ) - { - std::fprintf( stderr, "lzcheck: Sync error at pos %d. in_size = %d, out_size = %d\n", - l, in_size, out_size ); - for( int i = 0; i < in_size; ++i ) - std::fputc( in_buffer[l+i], stderr ); - if( in_buffer[l+in_size-1] != '\n' ) - std::fputc( '\n', stderr ); - for( int i = 0; i < out_size; ++i ) - std::fputc( out_buffer[i], stderr ); - std::fputc( '\n', stderr ); - retval = 1; - } - } - if( retval >= 3 ) break; - - if( LZ_compress_finish( encoder ) < 0 || - LZ_decompress_write( decoder, mid_buffer, LZ_compress_read( encoder, mid_buffer, buffer_size ) ) < 0 || - LZ_decompress_read( decoder, out_buffer, buffer_size ) != 0 || - LZ_decompress_reset( decoder ) < 0 || - LZ_compress_restart_member( encoder, member_size ) < 0 ) - { - std::fprintf( stderr, "lzcheck: Can't restart member: %s.\n", - LZ_strerror( LZ_decompress_errno( decoder ) ) ); - retval = 3; break; - } - - const int size = std::min( 100, read_size ); - if( LZ_compress_write( encoder, in_buffer, size ) != size || - LZ_compress_finish( encoder ) < 0 || - LZ_decompress_write( decoder, mid_buffer, LZ_compress_read( encoder, mid_buffer, buffer_size ) ) < 0 || - LZ_decompress_read( decoder, out_buffer, 0 ) != 0 || - LZ_decompress_sync_to_member( decoder ) < 0 || - LZ_compress_restart_member( encoder, member_size ) < 0 ) - { - std::fprintf( stderr, "lzcheck: Can't seek to next member: %s.\n", - LZ_strerror( LZ_decompress_errno( decoder ) ) ); - retval = 3; break; - } - } - - LZ_decompress_close( decoder ); - LZ_compress_close( encoder ); - std::fclose( file ); - return retval; - } -- cgit v1.2.3