Hello,

on a system with 75.000 users and 3.800 groups the mc start takes about
2 minutes. With the attached patch it takes only 1 second.

MC Version 4.6.0-pre1
Platform: Debian 

Greetings
Stefan

-- 
Stefan Gohmann     <[EMAIL PROTECTED]>       fon: +49 421 22 232- 0
Entwicklung        Linux for Your Business
Univention GmbH    http://www.univention.de/     fax: +49 421 22 232-99

--- mc-4.6.0-4.6.1-pre1.orig/src/utilunix.c	Fri Nov 28 16:23:19 2003
+++ mc-4.6.0-4.6.1-pre1/src/utilunix.c	Tue Nov 16 10:15:30 2004
@@ -88,7 +88,7 @@
 		       g_strdup (grp->gr_name));
     }
 
-    setgrent ();
+    /*setgrent ();
     while ((grp = getgrent ()) != NULL) {
 	for (i = 0; grp->gr_mem[i]; i++) {
 	    if (!strcmp (pwd->pw_name, grp->gr_mem[i]) &&
@@ -101,7 +101,36 @@
 	    }
 	}
     }
-    endgrent ();
+    endgrent ();*/
+	gid_t *groups = NULL;
+	int ng = 1;
+	//struct group *grp;
+	gid_t *newgroups = NULL;
+	
+	groups = (gid_t *) malloc(ng * sizeof(gid_t));
+
+	if (getgrouplist(pwd->pw_name, pwd->pw_gid, groups, &ng) == -1) {
+		newgroups = (gid_t *) malloc(ng * sizeof(gid_t));
+		if (newgroups != NULL) {
+			free(groups);
+			groups = newgroups;
+			getgrouplist(pwd->pw_name, pwd->pw_gid, groups, &ng);
+		} else ng = 1;
+	}
+
+	for (i = 0; i < ng; i++) {
+		grp = getgrgid(groups[i]);
+		if (grp != NULL &&
+			!g_tree_lookup (current_user_gid,
+					GUINT_TO_POINTER ((int) grp->gr_gid))) {
+			g_tree_insert (current_user_gid,
+			       	GUINT_TO_POINTER ((int) grp->gr_gid),
+			       	g_strdup (grp->gr_name));
+		}
+	}
+
+	 free(groups);
+
 }
 
 /* Return the index of the permissions triplet */
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