File 0002-openssl-Ensure-the-thread-ID-is-never-zero.patch of Package strongswan.864

From 901dbc1077f6c9bd29369cad848bc79a29c1a65b Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Sat, 30 Jun 2012 10:05:41 +0200
Subject: [PATCH] openssl: Ensure the thread ID is never zero

This might otherwise cause problems because OpenSSL tries to lock
mutexes recursively if it assumes the lock is held by a different
thread e.g. during FIPS initialization.
---
 src/libstrongswan/plugins/openssl/openssl_plugin.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/src/libstrongswan/plugins/openssl/openssl_plugin.c b/src/libstrongswan/plugins/openssl/openssl_plugin.c
index 5a11412..7daa92b 100644
--- a/src/libstrongswan/plugins/openssl/openssl_plugin.c
+++ b/src/libstrongswan/plugins/openssl/openssl_plugin.c
@@ -129,7 +129,9 @@ static void destroy_function(struct CRYPTO_dynlock_value *lock,
  */
 static unsigned long id_function(void)
 {
-	return (unsigned long)thread_current_id();
+	/* ensure the thread ID is never zero, otherwise OpenSSL might try to
+	 * acquire locks recursively */
+	return 1 + (unsigned long)thread_current_id();
 }
 
 /**
-- 
1.7.7