X-Git-Url: http://git.silcnet.org/gitweb/?p=silc.git;a=blobdiff_plain;f=lib%2Fsilccore%2Fsilcpacket.c;h=f552ca6d1741aebf31648e1c694d34c302792ac3;hp=85d8b4e635dd73e24c585ff6f3d7f91e6bb48c85;hb=e9374395ec9747bddd3ea0bfd3e5a17717e97b31;hpb=90e14dc985628e0b0f86e604d511039d302dc956

diff --git a/lib/silccore/silcpacket.c b/lib/silccore/silcpacket.c
index 85d8b4e6..f552ca6d 100644
--- a/lib/silccore/silcpacket.c
+++ b/lib/silccore/silcpacket.c
@@ -40,7 +40,7 @@ struct SilcPacketEngineStruct {
   SilcMutex lock;			 /* Engine lock */
   SilcRng rng;		                 /* RNG for engine */
   SilcHashTable contexts;		 /* Per scheduler contexts */
-  SilcPacketCallbacks *callbacks;	 /* Packet callbacks */
+  const SilcPacketCallbacks *callbacks;	 /* Packet callbacks */
   void *callback_context;		 /* Context for callbacks */
   SilcList streams;			 /* All streams in engine */
   SilcList packet_pool;       		 /* Free list for received packets */
@@ -51,7 +51,7 @@ struct SilcPacketEngineStruct {
 /* Packet processor context */
 typedef struct SilcPacketProcessStruct {
   SilcPacketType *types;		 /* Packets to process */
-  SilcPacketCallbacks *callbacks;	 /* Callbacks or NULL */
+  const SilcPacketCallbacks *callbacks;	 /* Callbacks or NULL */
   void *callback_context;
   SilcInt32 priority;		         /* Priority */
 } *SilcPacketProcess;
@@ -540,7 +540,7 @@ static void silc_packet_engine_context_destr(void *key, void *context,
 
 SilcPacketEngine
 silc_packet_engine_start(SilcRng rng, SilcBool router,
-			 SilcPacketCallbacks *callbacks,
+			 const SilcPacketCallbacks *callbacks,
 			 void *callback_context)
 {
   SilcPacketEngine engine;
@@ -1001,7 +1001,7 @@ void silc_packet_stream_set_iv_included(SilcPacketStream stream)
 /* Links `callbacks' to `stream' for specified packet types */
 
 static SilcBool silc_packet_stream_link_va(SilcPacketStream stream,
-					   SilcPacketCallbacks *callbacks,
+					   const SilcPacketCallbacks *callbacks,
 					   void *callback_context,
 					   int priority, va_list ap)
 {
@@ -1080,7 +1080,7 @@ static SilcBool silc_packet_stream_link_va(SilcPacketStream stream,
 /* Links `callbacks' to `stream' for specified packet types */
 
 SilcBool silc_packet_stream_link(SilcPacketStream stream,
-				 SilcPacketCallbacks *callbacks,
+				 const SilcPacketCallbacks *callbacks,
 				 void *callback_context,
 				 int priority, ...)
 {
@@ -1098,7 +1098,7 @@ SilcBool silc_packet_stream_link(SilcPacketStream stream,
 /* Unlinks `callbacks' from `stream'. */
 
 void silc_packet_stream_unlink(SilcPacketStream stream,
-			       SilcPacketCallbacks *callbacks,
+			       const SilcPacketCallbacks *callbacks,
 			       void *callback_context)
 {
   SilcPacketProcess p;
@@ -1324,6 +1324,7 @@ SilcBool silc_packet_set_ids(SilcPacketStream stream,
 {
   SilcUInt32 len;
   unsigned char tmp[32];
+  void *tmp_id;
 
   if (!src_id && !dst_id)
     return FALSE;
@@ -1333,17 +1334,17 @@ SilcBool silc_packet_set_ids(SilcPacketStream stream,
   if (src_id) {
     SILC_LOG_DEBUG(("Setting source ID to packet stream %p", stream));
 
-    silc_free(stream->src_id);
-    stream->src_id = NULL;
     if (!silc_id_id2str(src_id, src_id_type, tmp, sizeof(tmp), &len)) {
       silc_mutex_unlock(stream->lock);
       return FALSE;
     }
-    stream->src_id = silc_memdup(tmp, len);
-    if (!stream->src_id) {
+    tmp_id = silc_memdup(tmp, len);
+    if (!tmp_id) {
       silc_mutex_unlock(stream->lock);
       return FALSE;
     }
+    silc_free(stream->src_id);
+    stream->src_id = tmp_id;
     stream->src_id_type = src_id_type;
     stream->src_id_len = len;
   }
@@ -1351,17 +1352,17 @@ SilcBool silc_packet_set_ids(SilcPacketStream stream,
   if (dst_id) {
     SILC_LOG_DEBUG(("Setting destination ID to packet stream %p", stream));
 
-    silc_free(stream->dst_id);
-    stream->dst_id = NULL;
     if (!silc_id_id2str(dst_id, dst_id_type, tmp, sizeof(tmp), &len)) {
       silc_mutex_unlock(stream->lock);
       return FALSE;
     }
-    stream->dst_id = silc_memdup(tmp, len);
-    if (!stream->dst_id) {
+    tmp_id = silc_memdup(tmp, len);
+    if (!tmp_id) {
       silc_mutex_unlock(stream->lock);
       return FALSE;
     }
+    silc_free(stream->dst_id);
+    stream->dst_id = tmp_id;
     stream->dst_id_type = dst_id_type;
     stream->dst_id_len = len;
   }
@@ -2343,7 +2344,7 @@ silc_packet_wait_packet_receive(SilcPacketEngine engine,
 				void *stream_context);
 
 /* Packet waiting callbacks */
-static SilcPacketCallbacks silc_packet_wait_cbs =
+static const SilcPacketCallbacks silc_packet_wait_cbs =
 {
   silc_packet_wait_packet_receive, NULL, NULL
 };
@@ -2532,7 +2533,7 @@ typedef struct {
 } *SilcPacketWrapperStream;
 
 /* Packet wrapper callbacks */
-static SilcPacketCallbacks silc_packet_wrap_cbs =
+static const SilcPacketCallbacks silc_packet_wrap_cbs =
 {
   silc_packet_wrap_packet_receive, NULL, NULL
 };