[gedmurphy] 35111: - handle servname being NULL - patch by Yuri Sidorov <jura at cp-lab dot com> See issue #3627 for more details.

Author: gedmurphy
Date: Mon Aug  4 12:26:03 2008
New Revision: 35111

URL: http://svn.reactos.org/svn/reactos?rev=35111&view=rev
Log:
- handle servname being NULL
- patch by Yuri Sidorov <jura at cp-lab dot com>
See issue #3627 for more details.

Modified:
    trunk/reactos/dll/win32/ws2_32/misc/ns.c

Modified: trunk/reactos/dll/win32/ws2_32/misc/ns.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/ws2_32/misc/ns.c…
==============================================================================
--- trunk/reactos/dll/win32/ws2_32/misc/ns.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/ws2_32/misc/ns.c [iso-8859-1] Mon Aug  4 12:26:03 2008
@@ -1407,28 +1407,33 @@
     if (!WSAINITIALIZED)
         return WSANOTINITIALISED;
 
-    /* converting port number */
-    port = strtoul(servname, NULL, 10);
-    /* service name was specified? */
-    if (port == 0)
-    {
-        /* protocol was specified? */
-        if (hints && hints->ai_protocol)
+    if (servname)
+    {
+        /* converting port number */
+        port = strtoul(servname, NULL, 10);
+        /* service name was specified? */
+        if (port == 0)
         {
-            pent = getprotobynumber(hints->ai_protocol);
-            if (pent == NULL)
-              return WSAEINVAL;
-            proto = pent->p_name;
+            /* protocol was specified? */
+            if (hints && hints->ai_protocol)
+            {
+                pent = getprotobynumber(hints->ai_protocol);
+                if (pent == NULL)
+                  return WSAEINVAL;
+                proto = pent->p_name;
+            }
+            else
+                proto = NULL;
+            se = getservbyname(servname, proto);
+            if (se == NULL)
+                return WSATYPE_NOT_FOUND;
+            port = se->s_port;
         }
         else
-            proto = NULL;
-        se = getservbyname(servname, proto);
-        if (se == NULL)
-            return WSAHOST_NOT_FOUND;
-        port = se->s_port;
+            port = htons(port);
     }
     else
-        port = htons(port);
+        port = 0;
 
     if (nodename)
     {