[gupnp: 3/5] Use Windows's built-in UUID generator

[Jens Georg <jensgeorg src gnome org>]

commit cbb75b7d55f293d1d943d1cec632a712dca4f998
Author: Jens Georg <mail jensge org>
Date:   Thu Aug 19 23:40:53 2010 +0300

    Use Windows's built-in UUID generator

 configure.ac             |    2 ++
 libgupnp/gupnp-service.c |   16 +++++++++++++++-
 2 files changed, 17 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7ace3b7..1d0c8ff 100644
--- a/configure.ac
+++ b/configure.ac
@@ -64,6 +64,8 @@ if test "x$os_win32" = "xno"; then
                         [--with-context-manager=@<:@network-manager/connman/unix/linux@:>@],
                         [Context Manager backend to use]),,
             [with_context_manager="none"])
+else
+    LIBGUPNP_LIBS="$LIBGUPNP_LIBS -lrpcrt4"
 fi
 
 if test "x$with_context_manager" = "xnone"; then
diff --git a/libgupnp/gupnp-service.c b/libgupnp/gupnp-service.c
index e6aba2d..8c1709e 100644
--- a/libgupnp/gupnp-service.c
+++ b/libgupnp/gupnp-service.c
@@ -31,6 +31,7 @@
 #include <gmodule.h>
 #include <libsoup/soup-date.h>
 #ifdef G_OS_WIN32
+#include <rpc.h>
 #else
 #include <uuid/uuid.h>
 #endif
@@ -1081,7 +1082,20 @@ static char *
 generate_sid (void)
 {
 #ifdef G_OS_WIN32
-        return NULL;
+        char *ret = NULL;
+        UUID uuid;
+        RPC_STATUS stat;
+        stat = UuidCreate (&uuid);
+        if (stat == RPC_S_OK) {
+                unsigned char* uuidStr = NULL;
+                stat = UuidToString (&uuid, &uuidStr);
+                if (stat == RPC_S_OK) {
+                        ret = g_strdup_printf ("uuid:%s", uuidStr);
+                        RpcStringFree (&uuidStr);
+                }
+        }
+
+        return ret;
 #else
         uuid_t id;
         char out[39];