Hans Leidekker : ws2_32: Skip non-address records in dns_only_query().

[Alexandre Julliard]

Module: wine
Branch: stable
Commit: f206f787da22cd229a4d4eea19931cf7df743cac
URL:    https://gitlab.winehq.org/wine/wine/-/commit/f206f787da22cd229a4d4eea19931cf...

Author: Hans Leidekker <hans(a)codeweavers.com>
Date:   Wed Apr 12 15:17:10 2023 +0200

ws2_32: Skip non-address records in dns_only_query().

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54819
(cherry picked from commit f512b3c08ccfc9b9c235964002e644e2cbd657cf)

---

 dlls/ws2_32/protocol.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dlls/ws2_32/protocol.c b/dlls/ws2_32/protocol.c
index 1f840832c7a..f746257a4fc 100644
--- a/dlls/ws2_32/protocol.c
+++ b/dlls/ws2_32/protocol.c
@@ -96,8 +96,8 @@ static int dns_only_query( const char *node, const struct addrinfo *hints, struc
         }
     }
 
-    for (ptr = rec; ptr; ptr = ptr->pNext) count++;
-    for (ptr = rec6; ptr; ptr = ptr->pNext) count++;
+    for (ptr = rec; ptr; ptr = ptr->pNext) { if (ptr->wType == DNS_TYPE_A) count++; };
+    for (ptr = rec6; ptr; ptr = ptr->pNext) { if (ptr->wType == DNS_TYPE_AAAA) count++; };
     if (!count)
     {
         DnsRecordListFree( (DNS_RECORD *)rec, DnsFreeRecordList );
@@ -114,6 +114,7 @@ static int dns_only_query( const char *node, const struct addrinfo *hints, struc
 
     for (ptr = rec; ptr; ptr = ptr->pNext)
     {
+        if (ptr->wType != DNS_TYPE_A) continue;
         info->ai_family   = AF_INET;
         info->ai_socktype = hints->ai_socktype;
         info->ai_protocol = hints->ai_protocol;
@@ -128,6 +129,7 @@ static int dns_only_query( const char *node, const struct addrinfo *hints, struc
     }
     for (ptr = rec6; ptr; ptr = ptr->pNext)
     {
+        if (ptr->wType != DNS_TYPE_AAAA) continue;
         info->ai_family   = AF_INET6;
         info->ai_socktype = hints->ai_socktype;
         info->ai_protocol = hints->ai_protocol;