Add missing file

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

diff --git a/src/hello/address.c b/src/hello/address.c
index 51fb296c3402f766293f1d29ad1bd40fffab57f2..9b7bb2019d3894cc394adfc44c009226cbe4121c 100644 (file)
--- a/src/hello/address.c
+++ b/src/hello/address.c
@@ -1,6 +1,6 @@
 /*
      This file is part of GNUnet.
-     (C) 2009 Christian Grothoff (and other contributing authors)
+     Copyright (C) 2009 Christian Grothoff (and other contributing authors)
 
      GNUnet is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published
@@ -14,8 +14,8 @@
 
      You should have received a copy of the GNU General Public License
      along with GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-     Boston, MA 02111-1307, USA.
+     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
 */
 
 /**
@@ -28,6 +28,37 @@
 #include "gnunet_util_lib.h"
 
 
+/**
+ * Check if an address has a local option set
+ *
+ * @param address the address to check
+ * @param option the respective option to check for
+ * @return #GNUNET_YES or #GNUNET_NO
+ */
+int
+GNUNET_HELLO_address_check_option (const struct GNUNET_HELLO_Address * address,
+                                   enum GNUNET_HELLO_AddressInfo option)
+{
+  if (option == (address->local_info & option))
+    return GNUNET_YES;
+  return GNUNET_NO;
+}
+
+
+/**
+ * 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;
+}
+
+
 /**
  * Allocate an address struct.
  *
@@ -35,30 +66,90 @@
  * @param transport_name plugin name
  * @param address binary address
  * @param address_length number of bytes in 'address'
+ * @param local_info additional local information for the address
  * @return the address struct
  */
 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,
+                               enum GNUNET_HELLO_AddressInfo local_info)
 {
   struct GNUNET_HELLO_Address *addr;
   size_t slen;
   char *end;
 
   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];
-  memcpy (end, address, address_length);
   addr->address_length = address_length;
+  addr->local_info = local_info;
+  end = (char *) &addr[1];
   addr->transport_name = &end[address_length];
-  memcpy (&end[address_length], transport_name, slen);
+  memcpy (end,
+          address,
+          address_length);
+  memcpy (&end[address_length],
+          transport_name,
+          slen);
   return addr;
 }
 
+
+/**
+ * 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)
+{
+  if (NULL == address)
+    return NULL;
+  return GNUNET_HELLO_address_allocate (&address->peer,
+                                        address->transport_name,
+                                        address->address,
+                                        address->address_length,
+                                        address->local_info);
+}
+
+
+/**
+ * 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;
+
+  if ( (NULL == a1) &&
+       (NULL == a2) )
+    return 0;
+  if (NULL == a1)
+    return 1;
+  if (NULL == a2)
+    return -1;
+  ret = strcmp (a1->transport_name, a2->transport_name);
+  if (0 != ret)
+    return ret;
+  if (a1->local_info != a2->local_info)
+    return ((int) a1->local_info) - ((int) a2->local_info);
+  if (a1->address_length < a2->address_length)
+    return -1;
+  if (a1->address_length > a2->address_length)
+    return 1;
+  return memcmp (a1->address, a2->address, a1->address_length);
+}
+
+
 /* end of address.c */