From 85f77e5953ce6a60235ea3d5af5799668183b497 Mon Sep 17 00:00:00 2001
From: Toni Uhlig <matzeton@googlemail.com>
Date: Wed, 26 Dec 2018 21:12:37 +0100
Subject: support BSD arc4random() if available

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
---
 src/Makefile.am | 4 ++++
 src/utils.c     | 7 +++++++
 2 files changed, 11 insertions(+)

(limited to 'src')

diff --git a/src/Makefile.am b/src/Makefile.am
index da23fd8..1d161a2 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -18,9 +18,13 @@ if HAVE_ICMPFILTER
 ptunnel_ng_CFLAGS += -DHAVE_ICMPFILTER=1
 endif
 
+if HAVE_ARC4RANDOM
+ptunnel_ng_CFLAGS += -DHAVE_ARC4RANDOM=1
+else
 if HAVE_RANDOM
 ptunnel_ng_CFLAGS += -DHAVE_RANDOM=1
 endif
+endif
 
 ptunnel_ng_SOURCES = \
 	md5.c \
diff --git a/src/utils.c b/src/utils.c
index 6233753..10e8182 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -49,6 +49,9 @@
 #include <string.h>
 #include <time.h>
 #include <assert.h>
+#ifdef HAVE_ARC4RANDOM
+#include <bsd/stdlib.h>
+#endif
 
 #ifndef WIN32
 #include <syslog.h>
@@ -148,6 +151,9 @@ void print_hexstr(unsigned char *buf, size_t siz) {
 #endif
 
 int pt_random(void) {
+#ifdef HAVE_ARC4RANDOM
+	return arc4random();
+#else
 #ifdef HAVE_RANDOM
 #ifndef TIME_UTC
 #define TIME_UTC 1
@@ -161,4 +167,5 @@ int pt_random(void) {
 	srand(time(0));
 	return rand();
 #endif
+#endif
 }
-- 
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