1 files changed, 130 insertions, 0 deletions
diff --git a/src/libzrtpcpp/crypto/gcrypt/InitializeGcrypt.cpp b/src/libzrtpcpp/crypto/gcrypt/InitializeGcrypt.cpp
new file mode 100644
index 0000000..1372578
--- /dev/null
+++ b/src/libzrtpcpp/crypto/gcrypt/InitializeGcrypt.cpp
@@ -0,0 +1,130 @@
+/*
+  Copyright (C) 2006-2007 Werner Dittmann
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+
+#include <malloc.h>
+#include <errno.h>
+#include <gcrypt.h>
+
+#include <libzrtpcpp-config.h>
+#ifdef  HAVE_PTHREAD_H
+#include <pthread.h>
+#else
+#include <winbase.h>
+#endif
+
+static int initialized = 0;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef  HAVE_PTHREAD_H
+static int gcry_thread_mutex_init (void **priv)
+{
+    int err = 0;
+    pthread_mutex_t *lock = (pthread_mutex_t *)malloc (sizeof (pthread_mutex_t));
+    if (!lock)
+        err = ENOMEM;
+    if (!err) {
+        err = pthread_mutex_init (lock, NULL);
+        if (err)
+            free (lock);
+        else
+            *priv = lock;
+    }
+    return err;
+}
+
+static int gcry_thread_mutex_destroy (void **lock)
+{ 
+    int err = pthread_mutex_destroy ((pthread_mutex_t *)*lock);  
+    free (*lock); return err; 
+}
+
+static int gcry_thread_mutex_lock (void **lock)
+{ 
+    return pthread_mutex_lock ((pthread_mutex_t *)*lock); 
+}
+
+static int gcry_thread_mutex_unlock (void **lock)
+{
+    return pthread_mutex_unlock ((pthread_mutex_t *)*lock); 
+}
+ 
+static struct gcry_thread_cbs gcry_threads = { 
+    GCRY_THREAD_OPTION_PTHREAD, NULL,
+    gcry_thread_mutex_init, gcry_thread_mutex_destroy,
+    gcry_thread_mutex_lock, gcry_thread_mutex_unlock 
+};
+
+#else
+static int gcry_thread_mutex_init (void **priv)
+{
+    int err = 0;
+	CRITICAL_SECTION *lock = (CRITICAL_SECTION *)malloc(sizeof(CRITICAL_SECTION));
+    if (!lock)
+        err = ENOMEM;
+    if (!err) {
+		InitializeCriticalSection(lock);
+        *priv = lock;
+    }
+    return err;
+}
+
+static int gcry_thread_mutex_destroy (void **lock)
+{ 
+	free(*lock);
+	return 0;
+}
+
+static int gcry_thread_mutex_lock (void **lock)
+{ 
+	EnterCriticalSection((CRITICAL_SECTION *)*lock);
+	return 0;
+}
+
+static int gcry_thread_mutex_unlock (void **lock)
+{
+	LeaveCriticalSection((CRITICAL_SECTION *)*lock);
+	return 0;
+}
+ 
+static struct gcry_thread_cbs gcry_threads = { 
+    GCRY_THREAD_OPTION_PTHREAD, NULL,
+    gcry_thread_mutex_init, gcry_thread_mutex_destroy,
+    gcry_thread_mutex_lock, gcry_thread_mutex_unlock 
+};
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+int initializeGcrypt ()
+{
+
+    if (initialized) {
+	      return 1;
+    }
+    gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads);
+    gcry_check_version(NULL);
+    gcry_control(GCRYCTL_DISABLE_SECMEM);
+    initialized = 1;
+    return 1;
+}