From b3add4491ddae0e6ad386684af7c06c51398e574 Mon Sep 17 00:00:00 2001
From: Martijn Smit <smit@mollie.com>
Date: Wed, 13 Sep 2017 10:19:57 +0200
Subject: [PATCH] Replace extension_loaded with forward compatible function
 exists check

---
 phpseclib/Net/SSH2.php      | 2 +-
 tests/Unit/Net/SSH2Test.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index 9e055eb2..5a8959b7 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -1257,7 +1257,7 @@ class SSH2
         $identifier = 'SSH-2.0-phpseclib_2.0';
 
         $ext = array();
-        if (extension_loaded('libsodium')) {
+        if (function_exists('\\Sodium\\library_version_major')) {
             $ext[] = 'libsodium';
         }
 
diff --git a/tests/Unit/Net/SSH2Test.php b/tests/Unit/Net/SSH2Test.php
index df9651af..54695d5b 100644
--- a/tests/Unit/Net/SSH2Test.php
+++ b/tests/Unit/Net/SSH2Test.php
@@ -41,7 +41,7 @@ class Unit_Net_SSH2Test extends PhpseclibTestCase
         $identifier = $this->createSSHMock()->_generate_identifier();
         $this->assertStringStartsWith('SSH-2.0-phpseclib_2.0', $identifier);
 
-        if (extension_loaded('libsodium')) {
+        if (function_exists('\\Sodium\\library_version_major')) {
             $this->assertContains('libsodium', $identifier);
         }