[gnio] Support passing -1 as num_* in g_socket_send_message

[Alexander Larsson <alexl src gnome org>]

commit ef73b83e0f70ed2a0e51b45cf00e38cd16bd6684
Author: Alexander Larsson <alexl redhat com>
Date:   Tue Apr 28 11:07:39 2009 +0200

    Support passing -1 as num_* in g_socket_send_message
    
    As is typical in glib APIs, we support -1 as a count to mean look for
    NULL-termination of arrays.
---
 gio/gsocket.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/gio/gsocket.c b/gio/gsocket.c
index 468deca..01fa3e6 100644
--- a/gio/gsocket.c
+++ b/gio/gsocket.c
@@ -1012,6 +1012,12 @@ g_socket_send_message (GSocket                *socket,
 
   /* iov */
   {
+    if (num_vectors == -1)
+      {
+	for (num_vectors = 0; vectors[num_vectors].buffer != NULL; num_vectors++)
+	  ;
+      }
+
     if (num_vectors == 0)
       {
         char *zero;
@@ -1059,6 +1065,12 @@ g_socket_send_message (GSocket                *socket,
     struct cmsghdr *cmsg;
     gint i;
 
+    if (num_messages == -1)
+      {
+	for (num_messages = 0; messages[num_messages] != NULL; num_messages++)
+	  ;
+      }
+
     msg.msg_controllen = 0;
     for (i = 0; i < num_messages; i++)
       msg.msg_controllen += g_socket_control_message_space (messages[i]);