mirror of https://github.com/bsnes-emu/bsnes.git
46 lines
1010 B
C++
46 lines
1010 B
C++
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// Separate file to avoid linking to f* functions unless user calls unrar_open_file()
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#include "unrar.h"
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#include "rar.hpp"
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#include <stdio.h>
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extern "C" {
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static unrar_err_t unrar_read_file( void* user_data, void* out, int* count, unrar_pos_t pos )
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{
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FILE* file = (FILE*) user_data;
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// most of the time, seeking won't be necessary
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if ( pos != ftell( file ) && fseek( file, pos, SEEK_SET ) != 0 )
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return unrar_err_corrupt;
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*count = (int) fread( out, 1, *count, file );
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if ( ferror( file ) != 0 )
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return unrar_err_io;
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return unrar_ok;
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}
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}
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static void unrar_close_file( void* user_data )
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{
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fclose( (FILE*) user_data );
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}
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unrar_err_t unrar_open( unrar_t** arc_out, const char path [] )
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{
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*arc_out = NULL;
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FILE* file = fopen( path, "rb" );
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if ( file == NULL )
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return unrar_err_open;
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unrar_err_t err = unrar_open_custom( arc_out, &unrar_read_file, file );
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if ( err != unrar_ok )
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fclose( file );
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else
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(*arc_out)->close_file = &unrar_close_file;
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return err;
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}
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