Hans Leidekker : iphlpapi: Handle errors from DnsQueryConfig(DnsConfigDnsServerList).

[Alexandre Julliard]

Module: wine
Branch: master
Commit: fbf4544f7d49fab5bc00b972cd6c9441004cf3e0
URL:    https://gitlab.winehq.org/wine/wine/-/commit/fbf4544f7d49fab5bc00b972cd6c944...

Author: Hans Leidekker <hans(a)codeweavers.com>
Date:   Fri Jan  6 14:05:45 2023 +0100

iphlpapi: Handle errors from DnsQueryConfig(DnsConfigDnsServerList).

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52557

---

 dlls/iphlpapi/iphlpapi_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c
index a95a581532f..f8fb5de3f0e 100644
--- a/dlls/iphlpapi/iphlpapi_main.c
+++ b/dlls/iphlpapi/iphlpapi_main.c
@@ -2599,6 +2599,7 @@ static DWORD get_dns_server_list( const NET_LUID *luid, IP_ADDR_STRING *list, IP
     for (;;)
     {
         err = DnsQueryConfig( DnsConfigDnsServerList, 0, NULL, NULL, servers, &array_len );
+        if (err != ERROR_SUCCESS && err != ERROR_MORE_DATA) goto err;
         num = (array_len - FIELD_OFFSET(IP4_ARRAY, AddrArray[0])) / sizeof(IP4_ADDRESS);
         needed = num * sizeof(IP_ADDR_STRING);
         if (!list || *len < needed)