$OpenBSD: patch-src_files_c,v 1.1.1.1 2018/04/25 16:56:32 espie Exp $
--- src/files.c.orig	Tue Nov 22 11:18:44 2016
+++ src/files.c	Tue Nov 22 11:19:41 2016
@@ -1303,7 +1303,9 @@ boolean uncomp;
             redirect(filename, RDBMODE, stdin, uncomp);
             redirect(cfn, WRBMODE, stdout, uncomp);
         }
+	(void) setegid(getgid());
         (void) setgid(getgid());
+	(void) seteuid(getuid());
         (void) setuid(getuid());
         (void) execv(args[0], (char *const *) args);
         perror((char *) 0);
