[glib] gio/tests/inet-address: fix to work on OS X

[Dan Winship <danw src gnome org>]

commit 16b26231ca7d807a5bb52228eb4f2cae4427edde
Author: Dan Winship <danw gnome org>
Date:   Sat May 25 11:09:43 2013 -0300

    gio/tests/inet-address: fix to work on OS X
    
    OS X's getaddrinfo() only supports IPv6 scope IDs that are interface
    names, not numbers. So use if_indextoname() to get the name of an
    interface and construct an address using that.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=700123

 configure.ac             |    2 +-
 gio/tests/inet-address.c |   28 ++++++++++++++++++++++++----
 2 files changed, 25 insertions(+), 5 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 30c57d2..e020dcf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1126,7 +1126,7 @@ if $glib_failed ; then
   AC_MSG_ERROR([Could not determine values for MSG_* constants])
 fi
 
-AC_CHECK_FUNCS(getprotobyname_r endservent if_nametoindex)
+AC_CHECK_FUNCS(getprotobyname_r endservent if_nametoindex if_indextoname)
 
 AS_IF([test $glib_native_win32 = yes], [
   # <wspiapi.h> in the Windows SDK and in mingw-w64 has wrappers for
diff --git a/gio/tests/inet-address.c b/gio/tests/inet-address.c
index 0e82b06..8052aec 100644
--- a/gio/tests/inet-address.c
+++ b/gio/tests/inet-address.c
@@ -20,7 +20,10 @@
  * if advised of the possibility of such damage.
  */
 
+#include "config.h"
+
 #include <gio/gio.h>
+#include <gio/gnetworking.h>
 
 static void
 test_parse (void)
@@ -230,10 +233,26 @@ test_scope_id (void)
   GSocketAddress *saddr;
   GInetSocketAddress *isaddr;
   GInetAddress *iaddr;
-  char *tostring;
+  char *str, *tostring;
   GError *error = NULL;
-
-  addr = g_network_address_new ("fe80::42%1", 99);
+  int index;
+#ifdef HAVE_IF_INDEXTONAME
+  char ifname[IF_NAMESIZE] = { 0 };
+#endif
+
+#ifdef HAVE_IF_INDEXTONAME
+  for (index = 1; index < 255; index++) {
+    if (if_indextoname (1, ifname))
+      break;
+  }
+  g_assert_cmpstr (ifname, !=, "");
+  str = g_strdup_printf ("fe80::42%%%s", ifname);
+#else
+  index = 1;
+  str = g_strdup ("fe80::42%1");
+#endif
+
+  addr = g_network_address_new (str, 99);
   addr_enum = g_socket_connectable_enumerate (addr);
   saddr = g_socket_address_enumerator_next (addr_enum, NULL, &error);
   g_assert_no_error (error);
@@ -242,7 +261,7 @@ test_scope_id (void)
   g_assert (G_IS_INET_SOCKET_ADDRESS (saddr));
 
   isaddr = G_INET_SOCKET_ADDRESS (saddr);
-  g_assert_cmpint (g_inet_socket_address_get_scope_id (isaddr), ==, 1);
+  g_assert_cmpint (g_inet_socket_address_get_scope_id (isaddr), ==, index);
   g_assert_cmpint (g_inet_socket_address_get_port (isaddr), ==, 99);
 
   iaddr = g_inet_socket_address_get_address (isaddr);
@@ -257,6 +276,7 @@ test_scope_id (void)
 
   g_object_unref (addr_enum);
   g_object_unref (addr);
+  g_free (str);
 }
 
 static void