From: Baptiste Daroussin <bapt@FreeBSD.org>
Date: Wed, 4 May 2022 14:05:28 +0000 (+0200)
Subject: random: use arc4random where available
X-Git-Tag: RELEASE_1_4_0a1~82
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=806b3da3ddffce028a6cecbd5a452d758f8016e6;p=thirdparty%2Fmlmmj.git

random: use arc4random where available
---

diff --git a/configure.ac b/configure.ac
index 58a02cce..a7289af3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -44,6 +44,7 @@ AM_CONDITIONAL(WANT_RECEIVESTRIP, test x"$enable_receive_strip" = xyes)
 AC_FUNC_MALLOC
 AC_CHECK_FUNCS([ftruncate memset socket strerror strncasecmp snprintf fcntl])
 AC_CHECK_FUNCS([nanosleep time strftime syslog regcomp regexec])
+AC_CHECK_FUNCS([arc4random_uniform])
 
 AC_CONFIG_FILES([Makefile])
 AC_CONFIG_FILES([src/Makefile])
diff --git a/src/random-int.c b/src/random-int.c
index de143816..a0d0770f 100644
--- a/src/random-int.c
+++ b/src/random-int.c
@@ -30,6 +30,7 @@
 
 int random_int()
 {
+#ifndef HAVE_ARC4RANDOM_UNIFORM
 	static int init = 0;
 	unsigned int seed;
 	int devrandom;
@@ -59,6 +60,9 @@ int random_int()
 	init = 1;
 
 	return rand();
+#else
+	return arc4random_uniform(INT_MAX);
+#endif
 }
 #if 0
 int main(int argc, char **argv)