upstream commit

Add MAXIMUM(), MINIMUM(), and ROUNDUP() to misc.h, then
use those definitions rather than pulling <sys/param.h> and unknown namespace
pollution. ok djm markus dtucker

Upstream-ID: 712cafa816c9f012a61628b66b9fbd5687223fb8
diff --git a/kexgexs.c b/kexgexs.c
index f4400dc..4496035 100644
--- a/kexgexs.c
+++ b/kexgexs.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: kexgexs.c,v 1.29 2016/06/08 02:13:01 dtucker Exp $ */
+/* $OpenBSD: kexgexs.c,v 1.30 2016/09/12 01:22:38 deraadt Exp $ */
 /*
  * Copyright (c) 2000 Niels Provos.  All rights reserved.
  * Copyright (c) 2001 Markus Friedl.  All rights reserved.
@@ -28,7 +28,6 @@
 
 #ifdef WITH_OPENSSL
 
-#include <sys/param.h>	/* MIN MAX */
 
 #include <stdarg.h>
 #include <stdio.h>
@@ -53,6 +52,7 @@
 #include "dispatch.h"
 #include "ssherr.h"
 #include "sshbuf.h"
+#include "misc.h"
 
 static int input_kex_dh_gex_request(int, u_int32_t, void *);
 static int input_kex_dh_gex_init(int, u_int32_t, void *);
@@ -83,10 +83,10 @@
 	kex->nbits = nbits;
 	kex->min = min;
 	kex->max = max;
-	min = MAX(DH_GRP_MIN, min);
-	max = MIN(DH_GRP_MAX, max);
-	nbits = MAX(DH_GRP_MIN, nbits);
-	nbits = MIN(DH_GRP_MAX, nbits);
+	min = MAXIMUM(DH_GRP_MIN, min);
+	max = MINIMUM(DH_GRP_MAX, max);
+	nbits = MAXIMUM(DH_GRP_MIN, nbits);
+	nbits = MINIMUM(DH_GRP_MAX, nbits);
 
 	if (kex->max < kex->min || kex->nbits < kex->min ||
 	    kex->max < kex->nbits || kex->max < DH_GRP_MIN) {