-svn ignore

[oweals/gnunet.git] / src / hello / address.c

diff --git a/src/hello/address.c b/src/hello/address.c
index 51fb296c3402f766293f1d29ad1bd40fffab57f2..893a6dc9113e4db3ae5b11467d23381f67479cd7 100644 (file)
--- a/src/hello/address.c
+++ b/src/hello/address.c
@@ -39,21 +39,22 @@
  */
 struct GNUNET_HELLO_Address *
 GNUNET_HELLO_address_allocate (const struct GNUNET_PeerIdentity *peer,
-                              const char *transport_name,
-                              const void *address,
-                              size_t address_length)
+                               const char *transport_name, const void *address,
+                               size_t address_length)
 {
   struct GNUNET_HELLO_Address *addr;
   size_t slen;
   char *end;
 
+  GNUNET_assert (transport_name != NULL);
+
   slen = strlen (transport_name) + 1;
-  addr = GNUNET_malloc (sizeof (struct GNUNET_HELLO_Address) + 
-                       address_length + 
-                       slen);
+  addr =
+      GNUNET_malloc (sizeof (struct GNUNET_HELLO_Address) + address_length +
+                     slen);
   addr->peer = *peer;
   addr->address = &addr[1];
-  end = (char*) &addr[1];
+  end = (char *) &addr[1];
   memcpy (end, address, address_length);
   addr->address_length = address_length;
   addr->transport_name = &end[address_length];
@@ -61,4 +62,59 @@ GNUNET_HELLO_address_allocate (const struct GNUNET_PeerIdentity *peer,
   return addr;
 }
 
+
+/**
+ * Get the size of an address struct.
+ *
+ * @param address address
+ * @return the size
+ */
+size_t
+GNUNET_HELLO_address_get_size (const struct GNUNET_HELLO_Address * address)
+{
+  return sizeof (struct GNUNET_HELLO_Address) + address->address_length +
+      strlen (address->transport_name) + 1;
+}
+
+
+/**
+ * Copy an address struct.
+ *
+ * @param address address to copy
+ * @return a copy of the address struct
+ */
+struct GNUNET_HELLO_Address *
+GNUNET_HELLO_address_copy (const struct GNUNET_HELLO_Address *address)
+{
+  return GNUNET_HELLO_address_allocate (&address->peer, address->transport_name,
+                                        address->address,
+                                        address->address_length);
+}
+
+
+/**
+ * Compare two addresses.  Does NOT compare the peer identity,
+ * that is assumed already to match!
+ *
+ * @param a1 first address
+ * @param a2 second address
+ * @return 0 if the addresses are equal, -1 if a1<a2, 1 if a1>a2.
+ */
+int
+GNUNET_HELLO_address_cmp (const struct GNUNET_HELLO_Address *a1,
+                          const struct GNUNET_HELLO_Address *a2)
+{
+  int ret;
+
+  ret = strcmp (a1->transport_name, a2->transport_name);
+  if (0 != ret)
+    return ret;
+  if (a1->address_length < a2->address_length)
+    return -1;
+  if (a1->address_length > a2->address_length)
+    return 1;
+  return memcmp (a1->address, a1->address, a1->address_length);
+}
+
+
 /* end of address.c */