51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
// Separate file to avoid linking to f* functions unless user calls unrar_open_file()
|
|
|
|
#include "unrar.h"
|
|
#include "rar.hpp"
|
|
#include <stdio.h>
|
|
|
|
extern "C" {
|
|
static unrar_err_t unrar_read_file( void* user_data, void* out, int* count, unrar_pos_t pos )
|
|
{
|
|
FILE* file = (FILE*) user_data;
|
|
|
|
// most of the time, seeking won't be necessary
|
|
if ( pos != ftell( file ) && fseek( file, (long)pos, SEEK_SET ) != 0 )
|
|
return unrar_err_corrupt;
|
|
|
|
*count = (int) fread( out, 1, *count, file );
|
|
|
|
if ( ferror( file ) != 0 )
|
|
return unrar_err_io;
|
|
|
|
return unrar_ok;
|
|
}
|
|
}
|
|
|
|
static void unrar_close_file( void* user_data )
|
|
{
|
|
fclose( (FILE*) user_data );
|
|
}
|
|
|
|
unrar_err_t unrar_open( unrar_t** arc_out, const char path [] )
|
|
{
|
|
*arc_out = NULL;
|
|
|
|
#if _MSC_VER >= 1300
|
|
FILE* file = NULL;
|
|
fopen_s(&file, path, "rb");
|
|
#else
|
|
FILE* file = fopen( path, "rb" );
|
|
#endif
|
|
if ( file == NULL )
|
|
return unrar_err_open;
|
|
|
|
unrar_err_t err = unrar_open_custom( arc_out, &unrar_read_file, file );
|
|
if ( err != unrar_ok )
|
|
fclose( file );
|
|
else
|
|
(*arc_out)->close_file = &unrar_close_file;
|
|
|
|
return err;
|
|
}
|