[tfaber] 71711: [DNSAPI] - Check for NULL pointer in DnsQuery to avoid crashing tests

Author: tfaber
Date: Fri Jul  1 17:19:04 2016
New Revision: 71711

URL: http://svn.reactos.org/svn/reactos?rev=71711&view=rev
Log:
[DNSAPI]
- Check for NULL pointer in DnsQuery to avoid crashing tests

Modified:
    trunk/reactos/dll/win32/dnsapi/dnsapi/query.c

Modified: trunk/reactos/dll/win32/dnsapi/dnsapi/query.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/dnsapi/dnsapi/qu…
==============================================================================
--- trunk/reactos/dll/win32/dnsapi/dnsapi/query.c	[iso-8859-1] (original)
+++ trunk/reactos/dll/win32/dnsapi/dnsapi/query.c	[iso-8859-1] Fri Jul  1 17:19:04 2016
@@ -59,6 +59,9 @@
     LPSTR CurrentName;
     unsigned i, CNameLoop;
 
+    if (Name == NULL)
+        return ERROR_INVALID_PARAMETER;
+
     *QueryResultSet = 0;
 
     switch(Type)
@@ -200,6 +203,9 @@
     PDNS_RECORD QueryResultWide;
     PDNS_RECORD ConvertedRecord = 0, LastRecord = 0;
 
+    if (Name == NULL)
+        return ERROR_INVALID_PARAMETER;
+
     Buffer = DnsWToC(Name);
 
     Status = DnsQuery_A(Buffer, Type, Options, Servers, &QueryResultWide, Reserved);