Changed the threads cbks from struct to publ func

include/libssh/callbacks.h

@@ -279,8 +279,21 @@ struct ssh_threads_callbacks_struct {
 LIBSSH_API int ssh_threads_set_callbacks(struct ssh_threads_callbacks_struct
     *cb);
 
-extern struct ssh_threads_callbacks_struct ssh_threads_pthread;
+/**
-extern struct ssh_threads_callbacks_struct ssh_threads_noop;
+ * @brief returns a pointer on the pthread threads callbacks, to be used with
+ * ssh_threads_set_callbacks.
+ * @warning you have to link with the library ssh_threads.
+ * @see ssh_threads_set_callbacks
+ */
+LIBSSH_API struct ssh_threads_callbacks_struct *ssh_threads_get_pthread(void);
+
+/**
+ * @brief returns a pointer on the noop threads callbacks, to be used with
+ * ssh_threads_set_callbacks. These callbacks do nothing and are being used by
+ * default.
+ * @see ssh_threads_set_callbacks
+ */
+LIBSSH_API struct ssh_threads_callbacks_struct *ssh_threads_get_noop(void);
 
 /** @} */
 #ifdef __cplusplus

src/threads.c

@@ -39,7 +39,7 @@ static unsigned long threads_id_noop (void){
 	return 1;
 }
 
-struct ssh_threads_callbacks_struct ssh_threads_noop =
+static struct ssh_threads_callbacks_struct ssh_threads_noop =
 {
     "threads_noop",
     threads_noop,
@@ -49,6 +49,10 @@ struct ssh_threads_callbacks_struct ssh_threads_noop =
     threads_id_noop
 };
 
+struct ssh_threads_callbacks_struct *ssh_threads_get_noop(){
+	return &ssh_threads_noop;
+}
+
 static struct ssh_threads_callbacks_struct *user_callbacks =&ssh_threads_noop;
 
 #ifdef HAVE_LIBGCRYPT

src/threads/pthread.c

@@ -78,7 +78,7 @@ static unsigned long ssh_pthread_thread_id (void){
 	return (unsigned long) pthread_self();
 }
 
-struct ssh_threads_callbacks_struct ssh_threads_pthread =
+static struct ssh_threads_callbacks_struct ssh_threads_pthread =
 {
 		.type="threads_pthread",
     .mutex_init=ssh_pthread_mutex_init,
@@ -88,4 +88,8 @@ struct ssh_threads_callbacks_struct ssh_threads_pthread =
     .thread_id=ssh_pthread_thread_id
 };
 
+struct ssh_threads_callbacks_struct *ssh_threads_get_pthread(){
+	return &ssh_threads_pthread;
+}
+
 #endif /* HAVE_PTHREAD */

tests/unittests/torture_rand.c

@@ -15,7 +15,7 @@
 
 static void setup(){
 	printf("setup\n");
-	ssh_threads_set_callbacks(&ssh_threads_pthread);
+	ssh_threads_set_callbacks(ssh_threads_get_pthread());
 	ssh_init();
 }