patch-2.1.12 linux/kernel/sysctl.c

• Lines: 35
• Date: Fri Nov 22 11:50:57 1996
• Orig file: v2.1.11/linux/kernel/sysctl.c
• Orig date: Sun Nov 10 20:12:19 1996

diff -u --recursive --new-file v2.1.11/linux/kernel/sysctl.c linux/kernel/sysctl.c
@@ -229,19 +229,23 @@
 /* Like in_group_p, but testing against egid, not fsgid */
 static int in_egroup_p(gid_t grp)
 {
-	int	i;
-
-	if (grp == current->euid)
-		return 1;
-
-	for (i = 0; i < NGROUPS; i++) {
-		if (current->groups[i] == NOGROUP)
-			break;
-		if (current->groups[i] == grp)
-			return 1;
+	if (grp != current->egid) {
+		int i = current->ngroups;
+		if (i) {
+			gid_t *groups = current->groups;
+			do {
+				if (*groups == grp)
+					goto out;
+				groups++;
+				i--;
+			} while (i);
+		}
+		return 0;
 	}
-	return 0;
+out:
+	return 1;
 }
+
 /* ctl_perm does NOT grant the superuser all rights automatically, because
    some sysctl variables are readonly even to root. */
 static int test_perm(int mode, int op)