Andrew Nguyen : iphlpapi: Correctly compute the buffer offset for the DNS address structure in GetAdaptersAddresses .

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 587a9aa9f01abaf40a17a538df823ebdf79025d7
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=587a9aa9f01abaf40a17a538df823ebdf79025d7

Author: Andrew Nguyen <anguyen at codeweavers.com>
Date:   Sat Jan 15 02:28:02 2011 -0600

iphlpapi: Correctly compute the buffer offset for the DNS address structure in GetAdaptersAddresses.

Spotted with Valgrind.

---

 dlls/iphlpapi/iphlpapi_main.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c
index 3995a17..2966640 100644
--- a/dlls/iphlpapi/iphlpapi_main.c
+++ b/dlls/iphlpapi/iphlpapi_main.c
@@ -1100,7 +1100,7 @@ ULONG WINAPI GetAdaptersAddresses(ULONG family, ULONG flags, PVOID reserved,
         }
         if (!(flags & GAA_FLAG_SKIP_DNS_SERVER))
         {
-            firstDns = (PIP_ADAPTER_DNS_SERVER_ADDRESS)((BYTE *)aa + total_size - dns_server_size - dns_suffix_size);
+            firstDns = (PIP_ADAPTER_DNS_SERVER_ADDRESS)((BYTE *)first_aa + total_size - dns_server_size - dns_suffix_size);
             get_dns_server_addresses(firstDns, &dns_server_size);
             for (aa = first_aa; aa; aa = aa->Next)
             {