File njam-drop-setgid.patch of Package njam

--- src/njam.cpp	2005-12-13 05:56:43.000000000 -0600
+++ src/njam.cpp.orig	2011-05-28 17:45:32.000000000 -0500
@@ -47,12 +47,24 @@
 #include "njamfont.h"
 #include "njammap.h"
 #include "njam.h"
+
+static FILE* highscore_fp;
+
 //-----------------------------------------------------------------------------
 int main(int argc, char *argv[])
 {
  	bool Fullscreen = true;
  	bool SWSurface = true;
 	bool UseDGA = false;
+	gid_t realgid;
+	
+	highscore_fp = fopen("/var/games/njam.hs", "r+");
+        realgid = getgid();
+        if (setresgid(-1, realgid, realgid) != 0) {
+                perror("Could not drop setgid privileges.  Aborting.");
+                return 1;
+        }
+
  	if (argc > 1)
  	{
  		for (int i=1; i<argc; i++)
@@ -237,12 +249,12 @@
 	}
 
 		// format: NAME#POINTS#LEVEL#
-	fp = fopen("hiscore.dat", "w+");
-	if (fp)
+	if (highscore_fp)
 	{
+	    rewind(highscore_fp);
 		for (int i=0; i<10; i++)
-			fprintf(fp, "%s#%d#%d#\n", TopTenScores[i].name, TopTenScores[i].points, TopTenScores[i].level);
-		fclose(fp);
+		    fprintf(highscore_fp, "%s#%d#%d#\n", TopTenScores[i].name, TopTenScores[i].points, TopTenScores[i].level);
+		fclose(highscore_fp);
 	}
 
 	if (m_SDL)
@@ -665,15 +677,14 @@
 
 	// load hiscore from file (if any)
 	// format: NAME#POINTS#LEVEL#
-	fp = fopen("hiscore.dat", "r");
-	if (fp)
+	if (highscore_fp)
 	{
-		LogFile("Reading hiscore.dat\n");
+		LogFile("Reading /var/games/njam.hs\n");
 		char buff[40];
 		int number = 0;
-		while (!feof(fp) && number < 10)
+		while (!feof(highscore_fp) && number < 10)
 		{
-			fgets(buff, 40, fp);
+			fgets(buff, 40, highscore_fp);
 			int i = 0, last;
 
 			// name
@@ -703,8 +714,6 @@
 
 			number++;
 		}
-
-		fclose(fp);
 	}
 
     LogFile("Opening audio...");