From 2deabebc7c2f45f072f4d81e726430497c7c365e Mon Sep 17 00:00:00 2001
From: Max-Wilhelm Bruker <brukie@gmx.net>
Date: Sat, 12 Jan 2013 18:05:08 +0100
Subject: [PATCH] added PasswordHasher::initialize() to make libgcrypt warnings
 go away

---
 servatrice/src/main.cpp           | 2 ++
 servatrice/src/passwordhasher.cpp | 8 ++++++++
 servatrice/src/passwordhasher.h   | 1 +
 3 files changed, 11 insertions(+)

diff --git a/servatrice/src/main.cpp b/servatrice/src/main.cpp
index c71477fe..17338337 100644
--- a/servatrice/src/main.cpp
+++ b/servatrice/src/main.cpp
@@ -157,6 +157,8 @@ int main(int argc, char *argv[])
 	std::cerr << "Servatrice " << VERSION_STRING << " starting." << std::endl;
 	std::cerr << "-------------------------" << std::endl;
 	
+	PasswordHasher::initialize();
+	
 	if (testRandom)
 		testRNG();
 	if (testHashFunction)
diff --git a/servatrice/src/passwordhasher.cpp b/servatrice/src/passwordhasher.cpp
index 48fe7b66..1cc8528c 100644
--- a/servatrice/src/passwordhasher.cpp
+++ b/servatrice/src/passwordhasher.cpp
@@ -3,6 +3,14 @@
 #include <string.h>
 #include <gcrypt.h>
 
+void PasswordHasher::initialize()
+{
+	// These calls are required by libgcrypt before we use any of its functions.
+	gcry_check_version(0);
+	gcry_control(GCRYCTL_DISABLE_SECMEM, 0);
+	gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
+}
+
 QString PasswordHasher::computeHash(const QString &password, const QString &salt)
 {
 	const int algo = GCRY_MD_SHA512;
diff --git a/servatrice/src/passwordhasher.h b/servatrice/src/passwordhasher.h
index 2487b322..0cb6744c 100644
--- a/servatrice/src/passwordhasher.h
+++ b/servatrice/src/passwordhasher.h
@@ -5,6 +5,7 @@
 
 class PasswordHasher {
 public:
+	static void initialize();
 	static QString computeHash(const QString &password, const QString &salt);
 };