diff options
Diffstat (limited to '')
| -rw-r--r-- | lzcheck.c (renamed from lzcheck.cc) | 128 |
1 files changed, 66 insertions, 62 deletions
@@ -1,5 +1,5 @@ /* Lzcheck - A test program for the lzlib library - Copyright (C) 2009, 2010, 2011 Antonio Diaz Diaz. + Copyright (C) 2009, 2010, 2011, 2012 Antonio Diaz Diaz. This program is free software: you have unlimited permission to copy, distribute and modify it. @@ -14,11 +14,11 @@ #define _FILE_OFFSET_BITS 64 -#include <algorithm> -#include <cstdio> -#include <cstdlib> -#include <cstring> +#include <stdbool.h> #include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> #include <unistd.h> #include "lzlib.h" @@ -33,7 +33,11 @@ #define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL #endif -const int buffer_size = 32768; +#ifndef min + #define min(x,y) ((x) <= (y) ? (x) : (y)) +#endif + +enum { buffer_size = 32768 }; uint8_t in_buffer[buffer_size]; uint8_t mid_buffer[buffer_size]; uint8_t out_buffer[buffer_size]; @@ -43,53 +47,52 @@ int main( const int argc, const char * const argv[] ) { if( argc < 2 ) { - std::fprintf( stderr, "Usage: lzcheck filename.txt\n" ); + fprintf( stderr, "Usage: lzcheck filename.txt\n" ); return 1; } - FILE *file = std::fopen( argv[1], "rb" ); + FILE *file = fopen( argv[1], "rb" ); if( !file ) { - std::fprintf( stderr, - "lzcheck: Can't open file `%s' for reading\n", argv[1] ); + 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] ); +/* 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 ); + struct LZ_Encoder * const 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" ); + fprintf( stderr, "lzcheck: Not enough memory.\n" ); return 1; } - std::fprintf( stderr, - "lzcheck: internal error: Invalid argument to encoder.\n" ); + fprintf( stderr, "lzcheck: internal error: Invalid argument to encoder.\n" ); return 3; } - LZ_Decoder * decoder = LZ_decompress_open(); + struct LZ_Decoder * const decoder = LZ_decompress_open(); if( !decoder || LZ_decompress_errno( decoder ) != LZ_ok ) { LZ_decompress_close( decoder ); - std::fprintf( stderr, "lzcheck: Not enough memory.\n" ); + 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 + int i, l, r; + const int read_size = 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 ) + for( 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 ); @@ -98,30 +101,30 @@ int main( const int argc, const char * const argv[] ) 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 ) ) ); + 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 ) ) ); + 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 ) ) + if( out_size != in_size || 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 ); + fprintf( stderr, "lzcheck: Sync error at pos %d. in_size = %d, out_size = %d\n", + l, in_size, out_size ); + for( i = 0; i < in_size; ++i ) + 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 ); + fputc( '\n', stderr ); + for( i = 0; i < out_size; ++i ) + fputc( out_buffer[i], stderr ); + fputc( '\n', stderr ); retval = 1; } } @@ -129,39 +132,40 @@ int main( const int argc, const char * const argv[] ) if( retval <= 1 ) { - std::rewind( file ); + 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 ) ) ); + 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 + int i, l, r; + const int read_size = 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 ) + for( 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 leading_garbage = (l == 0) ? 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 ); + 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 ) ) ); + 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 ); @@ -171,28 +175,28 @@ int main( const int argc, const char * const argv[] ) if( LZ_decompress_errno( decoder ) == LZ_header_error || LZ_decompress_errno( decoder ) == LZ_data_error ) { - LZ_decompress_sync_to_member( decoder ); // remove leading garbage + 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 ) ) ); + 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 ) ) + if( out_size != in_size || 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 ); + fprintf( stderr, "lzcheck: Sync error at pos %d. in_size = %d, out_size = %d\n", + l, in_size, out_size ); + for( i = 0; i < in_size; ++i ) + 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 ); + fputc( '\n', stderr ); + for( i = 0; i < out_size; ++i ) + fputc( out_buffer[i], stderr ); + fputc( '\n', stderr ); retval = 1; } } @@ -204,12 +208,12 @@ int main( const int argc, const char * const argv[] ) 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 ) ) ); + 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 ); + const int size = 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 || @@ -217,14 +221,14 @@ int main( const int argc, const char * const argv[] ) 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 ) ) ); + 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 ); + fclose( file ); return retval; } |