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

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Dmitry-Me 2014-08-04 09:49:25 +04:00
parent fca00d0ebc
commit acb9c9c260
1 changed files with 6 additions and 1 deletions
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7
tinyxml2.cpp
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@ -1695,9 +1695,14 @@ XMLError XMLDocument::LoadFile( FILE* fp )
} }
fseek( fp, 0, SEEK_END ); fseek( fp, 0, SEEK_END );
size_t size = ftell( fp ); const long filelength = ftell( fp );
fseek( fp, 0, SEEK_SET ); 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 ) { if ( size == 0 ) {
SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 ); SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 );
return _errorID; return _errorID;