allow empty/NULL context message

[oweals/gnunet.git] / src / transport / plugin_transport_http_common.c

diff --git a/src/transport/plugin_transport_http_common.c b/src/transport/plugin_transport_http_common.c
index 77558a49bd408cc22094add62a42e637c93ada05..a01ca233fa692c1f4f35b5ebc714542486895f77 100644 (file)
--- a/src/transport/plugin_transport_http_common.c
+++ b/src/transport/plugin_transport_http_common.c
@@ -1,6 +1,6 @@
 /*
  This file is part of GNUnet
- Copyright (C) 2002-2013 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2002-2013 GNUnet e.V.
 
  GNUnet is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published
@@ -567,7 +567,7 @@ http_common_plugin_address_to_url (void *cls,
     GNUNET_break(0);
     return NULL;
   }
-  if (0 >= addrlen)
+  if (0 == addrlen)
   {
     GNUNET_break(0);
     return NULL;
@@ -611,14 +611,14 @@ http_common_plugin_address_to_string (const char *plugin,
 
   GNUNET_assert(NULL != plugin);
   if (NULL == addr)
-    return NULL ;
+    return NULL;
   if (0 == addrlen)
-    return NULL ;
+    return NULL;
   if (addrlen != http_common_address_get_size (address))
-    return NULL ;
+    return NULL;
   addr_str = (char *) &address[1];
   if (addr_str[ntohl (address->urlen) - 1] != '\0')
-    return NULL ;
+    return NULL;
   GNUNET_asprintf (&res, "%s.%u.%s", plugin, ntohl (address->options),
       &address[1]);
   if (strlen (res) + 1 < 500)
@@ -629,7 +629,7 @@ http_common_plugin_address_to_string (const char *plugin,
   }
   GNUNET_break(0);
   GNUNET_free(res);
-  return NULL ;
+  return NULL;
 }
 
 /**
@@ -772,7 +772,7 @@ http_common_socket_from_address (const void *addr,
     GNUNET_break (0);
     return NULL;
   }
-  if (0 >= addrlen)
+  if (0 == addrlen)
   {
     GNUNET_break (0);
     return NULL;
@@ -854,8 +854,10 @@ http_common_address_get_size (const struct HttpAddress * addr)
  * @return #GNUNET_YES if equal, #GNUNET_NO if not, #GNUNET_SYSERR on error
  */
 size_t
-http_common_cmp_addresses (const void *addr1, size_t addrlen1,
-    const void *addr2, size_t addrlen2)
+http_common_cmp_addresses (const void *addr1,
+                           size_t addrlen1,
+                           const void *addr2,
+                           size_t addrlen2)
 {
   const char *a1 = addr1;
   const char *a2 = addr2;
@@ -866,14 +868,14 @@ http_common_cmp_addresses (const void *addr1, size_t addrlen1,
 
   if (NULL == a1)
     return GNUNET_SYSERR;
-  if (0 >= addrlen1)
+  if (0 == addrlen1)
     return GNUNET_SYSERR;
   if (a1[addrlen1 - 1] != '\0')
     return GNUNET_SYSERR;
 
   if (NULL == a2)
     return GNUNET_SYSERR;
-  if (0 >= addrlen2)
+  if (0 == addrlen2)
     return GNUNET_SYSERR;
   if (a2[addrlen2 - 1] != '\0')
     return GNUNET_SYSERR;
@@ -888,4 +890,49 @@ http_common_cmp_addresses (const void *addr1, size_t addrlen1,
   return GNUNET_NO;
 }
 
+
+/**
+ * Function obtain the network type for an address.
+ *
+ * @param env the environment
+ * @param address the address
+ * @return the network type
+ */
+enum GNUNET_ATS_Network_Type
+http_common_get_network_for_address (struct GNUNET_TRANSPORT_PluginEnvironment *env,
+                                     const struct GNUNET_HELLO_Address *address)
+{
+
+  struct sockaddr *sa;
+  enum GNUNET_ATS_Network_Type net_type;
+  size_t salen = 0;
+  int res;
+
+  net_type = GNUNET_ATS_NET_UNSPECIFIED;
+  sa = http_common_socket_from_address (address->address,
+                                        address->address_length,
+                                        &res);
+  if (GNUNET_SYSERR == res)
+    return net_type;
+  if (GNUNET_YES == res)
+  {
+    GNUNET_assert (NULL != sa);
+    if (AF_INET == sa->sa_family)
+    {
+      salen = sizeof (struct sockaddr_in);
+    }
+    else if (AF_INET6 == sa->sa_family)
+    {
+      salen = sizeof (struct sockaddr_in6);
+    }
+    net_type = env->get_address_type (env->cls,
+                                      sa,
+                                      salen);
+    GNUNET_free (sa);
+  }
+  return net_type;
+}
+
+
+
 /* end of plugin_transport_http_common.c */