Added asynchronous event tasks to SILC Scheduler. Added

[crypto.git] / lib / silcclient / client.c

diff --git a/lib/silcclient/client.c b/lib/silcclient/client.c
index 37f757fe77baf17414557223490bb39c3aefe4ec..c27d055e1e3e230ac2a65ae7bd54d5094761fd15 100644 (file)
--- a/lib/silcclient/client.c
+++ b/lib/silcclient/client.c
@@ -22,9 +22,6 @@
 #include "silcclient.h"
 #include "client_internal.h"
 
-/************************** Types and definitions ***************************/
-
-
 /************************ Static utility functions **************************/
 
 /* Connection machine FSM destructor.  This will finish the thread where
@@ -42,7 +39,8 @@ static void silc_client_connection_destructor(SilcFSM fsm,
   /* Delete connection */
   silc_client_del_connection(conn->client, conn);
 
-  /* Finish the thread were this machine was running */
+  /* Finish the thread were this machine was running.  Its destructor is the
+     silc_client_connection_finished. */
   silc_fsm_finish(thread);
 }
 
@@ -151,7 +149,15 @@ static void silc_client_packet_error(SilcPacketEngine engine,
                                     void *callback_context,
                                     void *stream_context)
 {
-  /* Nothing */
+  SilcClient client = callback_context;
+  SilcClientConnection conn = stream_context;
+
+  /* Read and write errors are silent */
+  if (error == SILC_PACKET_ERR_READ || error == SILC_PACKET_ERR_WRITE)
+    return;
+
+  client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_ERROR,
+                            (char *)silc_packet_error_string(error));
 }
 
 /* Packet stream callbacks */
@@ -517,11 +523,13 @@ SILC_FSM_STATE(silc_client_st_run)
 
   /* Process events */
 
-  if (client->internal->run_callback && client->internal->running) {
+  if (client->internal->run_callback) {
     /* Call running callbcak back to application */
-    SILC_LOG_DEBUG(("We are up, call running callback"));
     client->internal->run_callback = FALSE;
-    client->internal->running(client, client->internal->running_context);
+    if (client->internal->running) {
+      SILC_LOG_DEBUG(("We are up, call running callback"));
+      client->internal->running(client, client->internal->running_context);
+    }
     return SILC_FSM_CONTINUE;
   }
 
@@ -772,6 +780,12 @@ silc_client_connect_to_server(SilcClient client,
   if (!client || !remote_host)
     return NULL;
 
+  if (client->internal->run_callback) {
+    SILC_LOG_ERROR(("Client library is not started yet. SilcClientRunning "
+                   "callback has not been called yet."));
+    return NULL;
+  }
+
   /* Add new connection */
   conn = silc_client_add_connection(client, SILC_CONN_SERVER, TRUE, params,
                                    public_key, private_key, remote_host,
@@ -809,6 +823,12 @@ silc_client_connect_to_client(SilcClient client,
   if (!client || !remote_host)
     return NULL;
 
+  if (client->internal->run_callback) {
+    SILC_LOG_ERROR(("Client library is not started yet. SilcClientRunning "
+                   "callback has not been called yet."));
+    return NULL;
+  }
+
   if (params)
     params->no_authentication = TRUE;
 
@@ -848,6 +868,12 @@ silc_client_key_exchange(SilcClient client,
   if (!client || !stream)
     return NULL;
 
+  if (client->internal->run_callback) {
+    SILC_LOG_ERROR(("Client library is not started yet. SilcClientRunning "
+                   "callback has not been called yet."));
+    return NULL;
+  }
+
   if (!silc_socket_stream_get_info(stream, NULL, &host, NULL, &port)) {
     SILC_LOG_ERROR(("Socket stream does not have remote host name set"));
     callback(client, NULL, SILC_CLIENT_CONN_ERROR, 0, NULL, context);
@@ -934,12 +960,8 @@ void silc_client_free(SilcClient client)
   if (client->rng)
     silc_rng_free(client->rng);
 
-  if (!client->internal->params->dont_register_crypto_library) {
-    silc_cipher_unregister_all();
-    silc_pkcs_unregister_all();
-    silc_hash_unregister_all();
-    silc_hmac_unregister_all();
-  }
+  if (!client->internal->params->dont_register_crypto_library)
+    silc_crypto_uninit();
 
   silc_packet_engine_stop(client->internal->packet_engine);
   silc_dlist_uninit(client->internal->ftp_sessions);
@@ -1005,15 +1027,10 @@ SilcBool silc_client_init(SilcClient client, const char *username,
   if (!client->internal->ftp_sessions)
     return FALSE;
 
-  if (!client->internal->params->dont_register_crypto_library) {
+  if (!client->internal->params->dont_register_crypto_library)
     /* Initialize the crypto library.  If application has done this already
-       this has no effect.  Also, we will not be overriding something
-       application might have registered earlier. */
-    silc_cipher_register_default();
-    silc_pkcs_register_default();
-    silc_hash_register_default();
-    silc_hmac_register_default();
-  }
+       this has no effect. */
+    silc_crypto_init(NULL);
 
   /* Initialize random number generator */
   client->rng = silc_rng_alloc();
@@ -1023,7 +1040,7 @@ SilcBool silc_client_init(SilcClient client, const char *username,
   silc_rng_global_init(client->rng);
 
   /* Initialize the scheduler */
-  client->schedule = silc_schedule_init(0, client);
+  client->schedule = silc_schedule_init(0, client, NULL, NULL);
   if (!client->schedule)
     return FALSE;
 
@@ -1081,6 +1098,12 @@ void silc_client_stop(SilcClient client, SilcClientStopped stopped,
 {
   SILC_LOG_DEBUG(("Stopping client"));
 
+  if (!silc_fsm_is_started(&client->internal->fsm)) {
+    SILC_LOG_WARNING(("Attempting to stop client library before it has been "
+                     "started (silc_client_init not called)"));
+    return;
+  }
+
   client->internal->running = (SilcClientRunning)stopped;
   client->internal->running_context = context;