X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=lib%2Fsilccrypt%2Fsilchash.c;h=4bb91087de51a278d8478aefd2cbc773f54a221c;hb=a818c5b5411bbc4436d1c5f011236985c96bb787;hp=f508c836e3bfa87898cd59ad7bbe0a87f96461b1;hpb=392c65ba9e06f633115ab2b88ebdbbb63ccc59c8;p=silc.git

diff --git a/lib/silccrypt/silchash.c b/lib/silccrypt/silchash.c
index f508c836..4bb91087 100644
--- a/lib/silccrypt/silchash.c
+++ b/lib/silccrypt/silchash.c
@@ -47,6 +47,16 @@ bool silc_hash_register(SilcHashObject *hash)
 
   SILC_LOG_DEBUG(("Registering new hash function `%s'", hash->name));
 
+  /* Check for existing */
+  if (silc_hash_list) {
+    SilcHashObject *entry;
+    silc_dlist_start(silc_hash_list);
+    while ((entry = silc_dlist_get(silc_hash_list)) != SILC_LIST_END) {
+      if (!strcmp(entry->name, hash->name))
+	return FALSE;
+    }
+  }
+
   new = silc_calloc(1, sizeof(*new));
   new->name = strdup(hash->name);
   new->hash_len = hash->hash_len;
@@ -144,7 +154,7 @@ void silc_hash_free(SilcHash hash)
 
 /* Returns the length of the hash digest. */
 
-uint32 silc_hash_len(SilcHash hash)
+SilcUInt32 silc_hash_len(SilcHash hash)
 {
   return hash->hash->hash_len;
 }
@@ -195,7 +205,7 @@ char *silc_hash_get_supported(void)
 /* Creates the hash value and returns it to the return_hash argument. */
 
 void silc_hash_make(SilcHash hash, const unsigned char *data, 
-		    uint32 len, unsigned char *return_hash)
+		    SilcUInt32 len, unsigned char *return_hash)
 {
   hash->hash->init(hash->context);
   hash->hash->update(hash->context, (unsigned char *)data, len);
@@ -207,7 +217,7 @@ void silc_hash_make(SilcHash hash, const unsigned char *data,
    caller. */
 
 char *silc_hash_fingerprint(SilcHash hash, const unsigned char *data,
-			    uint32 data_len)
+			    SilcUInt32 data_len)
 {
   SilcHash new_hash = NULL;
   unsigned char h[32];
@@ -235,7 +245,7 @@ static const char co[]= "bcdfghklmnprstvzx";
    fingerprint to the babbleprint. */
 
 char *silc_hash_babbleprint(SilcHash hash, const unsigned char *data,
-			    uint32 data_len)
+			    SilcUInt32 data_len)
 {
   SilcHash new_hash = NULL;
   char *babbleprint;