--- Daodan/src/Daodan.c	2013/03/02 23:46:33	677
+++ Daodan/src/Daodan.c	2013/03/03 04:37:58	681
@@ -555,19 +555,22 @@ FILE *__fastcall DDrPrintWarning(int fil
 	FILE *result; // eax@4
 	char v6[512]; // [sp+0h] [bp-100h]@1
 	FILE* UUgError_WarningFile = *_UUgError_WarningFile;
-	sprintf_s(
-		v6, 512,
-		"Error %x reported from File: %s, Line: %d (message follows) \r\n%s",
-		errornum,
-		filename,
-		linenumber,
-		message);
 
-	if ( UUgError_WarningFile 
-		|| (UUgError_WarningFile = oni_fopen("debugger.txt", "wb"), UUgError_WarningFile ) )
-	{ 
-		oni_fprintf(UUgError_WarningFile, "%s\r\n", v6);
-		oni_fflush(UUgError_WarningFile);
+	if (filename && message && (strlen(filename)+strlen(message))<420) {
+		sprintf(
+			v6,
+			"Error %x reported from File: %s, Line: %d (message follows) \r\n%s",
+			errornum,
+			filename,
+			linenumber,
+			message);
+
+		if ( UUgError_WarningFile 
+			|| (UUgError_WarningFile = oni_fopen("debugger.txt", "wb"), UUgError_WarningFile ) )
+		{ 
+			oni_fprintf(UUgError_WarningFile, "%s\r\n", v6);
+			oni_fflush(UUgError_WarningFile);
+		}
 	}
 	//oni_fprintf(stdout, v6);
 	//sprintf(&v6, "%s", message);