1 files changed, 120 insertions, 0 deletions
diff --git a/src/hello/address.c b/src/hello/address.c
new file mode 100644
index 0000000..893a6dc
--- /dev/null
+++ b/src/hello/address.c
@@ -0,0 +1,120 @@
+/*
+     This file is part of GNUnet.
+     (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
+     by the Free Software Foundation; either version 3, or (at your
+     option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     General Public License for more details.
+
+     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.
+*/
+
+/**
+ * @file hello/address.c
+ * @brief helper functions for handling addresses
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet_hello_lib.h"
+#include "gnunet_util_lib.h"
+
+
+/**
+ * Allocate an address struct.
+ *
+ * @param peer the peer
+ * @param transport_name plugin name
+ * @param address binary address
+ * @param address_length number of bytes in '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)
+{
+  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->peer = *peer;
+  addr->address = &addr[1];
+  end = (char *) &addr[1];
+  memcpy (end, address, address_length);
+  addr->address_length = address_length;
+  addr->transport_name = &end[address_length];
+  memcpy (&end[address_length], transport_name, slen);
+  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 */