--- methane-1.4.7/source/linux/doc.cpp.highscore	2005-01-20 17:22:02.000000000 +0100
+++ methane-1.4.7/source/linux/doc.cpp	2007-02-07 15:24:55.000000000 +0100
@@ -40,7 +40,7 @@
 //------------------------------------------------------------------------------
 // The HighScore table filename
 //------------------------------------------------------------------------------
-static char HighScoreFileName[] = "/var/games/methanescores";
+extern FILE *methanescoresfptr;
 #define HighScoreLoadBufferSize (MAX_HISCORES * 64)
 
 //------------------------------------------------------------------------------
@@ -382,23 +382,19 @@
 //------------------------------------------------------------------------------
 void CMethDoc::LoadScores(void)
 {
-	FILE *fptr;
 	char *mptr;
 	char *tptr;
 	char let;
 	int cnt;
 
-	fptr = fopen(HighScoreFileName, "r");
-	if (!fptr) return;	// No scores available
+	if (!methanescoresfptr) return;	// No scores available
+	rewind(methanescoresfptr);
 
 	// Allocate file memory, which is cleared to zero
 	mptr = (char *) calloc(1, HighScoreLoadBufferSize);
 	if (!mptr)		// No memory
-	{
-		fclose(fptr);
 		return;
-	}
-	fread( mptr, 1, HighScoreLoadBufferSize-2, fptr);	// Get the file
+	fread( mptr, 1, HighScoreLoadBufferSize-2, methanescoresfptr);	// Get the file
 
 	// (Note: mptr is zero terminated)
 	tptr = mptr;
@@ -417,9 +413,6 @@
 	}
 
 	free(mptr);
-
-	fclose(fptr);
-
 }
 
 //------------------------------------------------------------------------------
@@ -427,17 +420,14 @@
 //------------------------------------------------------------------------------
 void CMethDoc::SaveScores(void)
 {
-	FILE *fptr;
 	int cnt;
 	HISCORES *hs;
 
-	fptr = fopen(HighScoreFileName, "w");
-	if (!fptr) return;	// Cannot write scores
+	if (!methanescoresfptr) return;	// Cannot write scores
+	rewind(methanescoresfptr);
 	for (cnt=0, hs=m_GameTarget.m_Game.m_HiScores; cnt<MAX_HISCORES; cnt++, hs++)
 	{
-		fprintf(fptr, "%c%c%c%c%d$", hs->name[0], hs->name[1], hs->name[2], hs->name[3], hs->score);
+		fprintf(methanescoresfptr, "%c%c%c%c%d$", hs->name[0], hs->name[1], hs->name[2], hs->name[3], hs->score);
 	}
-	fclose(fptr);
-
 }
 
--- methane-1.4.7/source/linux/main.cpp.highscore	2005-01-20 17:22:02.000000000 +0100
+++ methane-1.4.7/source/linux/main.cpp	2007-02-07 15:26:13.000000000 +0100
@@ -13,6 +13,13 @@
 //------------------------------------------------------------------------------
 // Methane brothers main source file
 //------------------------------------------------------------------------------
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE /* this must be done before the first include of unistd.h */
+#endif
+#include<unistd.h>
+#include<string.h>
+#include <stdio.h>
+
 #ifdef METHANE_OLD_CPP
 #include <iostream.h>
 #else
@@ -32,6 +39,7 @@
 // The Game Instance
 //------------------------------------------------------------------------------
 CMethDoc Game;
+FILE *methanescoresfptr = NULL;
 
 //------------------------------------------------------------------------------
 // Keyboard stuff
@@ -60,6 +68,15 @@
 
 	virtual int main(int argc, char **argv)
 	{
+ 		gid_t realgid = getgid();
+ 		
+ 		methanescoresfptr = fopen("/var/games/methanescores", "r+");
+ 		
+ 		if (setresgid(-1, realgid, realgid) != 0) {
+ 			perror("Could not drop setgid privileges.  Aborting.");
+ 			exit(1);
+ 		}
+ 		
 		// Create a console window for text-output if not available
 		CL_ConsoleWindow console("Console");
 		console.redirect_stdio();
@@ -305,6 +322,9 @@
 			Game.SaveScores();
 
 			Game.RemoveSoundDriver();
+			
+ 			if (methanescoresfptr)
+ 				fclose(methanescoresfptr);
 		}
 		catch(CL_Error error)
 		{