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dnsapi: Return ERROR_MORE_DATA on insufficient buffer. 

This was already done correctly in the res_getservers() case.

Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2021-08-09 10:06:25 +01:00 committed by Alexandre Julliard
parent 6414726f57
commit 734de3bef8
2 changed files with 5 additions and 1 deletions
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2
dlls/dnsapi/libresolv.c
View File

@ -414,7 +414,7 @@ DNS_STATUS CDECL resolv_get_serverlist( USHORT family, DNS_ADDR_ARRAY *addrs, DW
if (!addrs || *len < needed) if (!addrs || *len < needed)
{ {
*len = needed; *len = needed;
return !addrs ? ERROR_SUCCESS : ERROR_INSUFFICIENT_BUFFER; return !addrs ? ERROR_SUCCESS : ERROR_MORE_DATA;
} }
*len = needed; *len = needed;
memset( addrs, 0, needed ); memset( addrs, 0, needed );

4
dlls/dnsapi/tests/query.c
View File

@ -155,6 +155,10 @@ static void test_DnsQueryConfig( void )
err = DnsQueryConfig( DnsConfigDnsServersIpv4, 0, name, NULL, NULL, &size ); err = DnsQueryConfig( DnsConfigDnsServersIpv4, 0, name, NULL, NULL, &size );
if (err) continue; if (err) continue;
ipv4 = malloc( size ); ipv4 = malloc( size );
size--;
err = DnsQueryConfig( DnsConfigDnsServersIpv4, 0, name, NULL, ipv4, &size );
ok( err == ERROR_MORE_DATA, "got %d\n", err );
size++;
err = DnsQueryConfig( DnsConfigDnsServersIpv4, 0, name, NULL, ipv4, &size ); err = DnsQueryConfig( DnsConfigDnsServersIpv4, 0, name, NULL, ipv4, &size );
ok( !err, "got %d\n", err ); ok( !err, "got %d\n", err );