[glib] ginetaddress: Add a precondition to g_inet_address_new_from_string()

[Philip Withnall <pwithnall src gnome org>]

commit ebe47823db6409eda6e391826666b3eb8dedb692
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Fri Jul 18 08:49:19 2014 +0100

    ginetaddress: Add a precondition to g_inet_address_new_from_string()
    
    Ensure that the input string is non-NULL, as inet_pton() does not like
    NULL strings.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=733345

 gio/ginetaddress.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gio/ginetaddress.c b/gio/ginetaddress.c
index 8eac10b..9ff0c44 100644
--- a/gio/ginetaddress.c
+++ b/gio/ginetaddress.c
@@ -393,6 +393,8 @@ g_inet_address_new_from_string (const gchar *string)
   struct in6_addr in6_addr;
 #endif
 
+  g_return_val_if_fail (string != NULL, NULL);
+
   /* If this GInetAddress is the first networking-related object to be
    * created, then we won't have called g_networking_init() yet at
    * this point.