Check ftell() result for error code before using it.

This commit is contained in:
Dmitry-Me 2014-08-04 09:49:25 +04:00
parent fca00d0ebc
commit acb9c9c260
1 changed files with 6 additions and 1 deletions

View File

@ -1695,9 +1695,14 @@ XMLError XMLDocument::LoadFile( FILE* fp )
}
fseek( fp, 0, SEEK_END );
size_t size = ftell( fp );
const long filelength = ftell( fp );
fseek( fp, 0, SEEK_SET );
if ( filelength == -1L ) {
SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );
return _errorID;
}
const size_t size = filelength;
if ( size == 0 ) {
SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 );
return _errorID;