iphlpapi: Handle errors from DnsQueryConfig(DnsConfigDnsServerList).

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

iphlpapi: Handle errors from DnsQueryConfig(DnsConfigDnsServerList).
fbf4544f · Hans Leidekker · Alexandre Julliard · d81cf4ed · fbf4544f
Commit fbf4544f authored Jan 06, 2023 by Hans Leidekker Committed by Alexandre Julliard Jan 09, 2023
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iphlpapi_main.c dlls/iphlpapi/iphlpapi_main.c +1 -0

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--- 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)