advapi32: Add PolicyDnsDomainInformation support to LsaQueryInformationPolicy.

[Robert Reif]

-------------- next part --------------
--- wine/dlls/advapi32/lsa.c	2006-07-29 16:21:33.000000000 -0400
+++ wine/dlls/advapi32/lsa.c	2006-07-29 16:20:17.000000000 -0400
@@ -463,6 +463,81 @@ NTSTATUS WINAPI LsaQueryInformationPolic
             *Buffer = xdi;
         }
         break;
+        case  PolicyDnsDomainInformation:	/* 12 */
+        {
+            struct di
+            {
+                POLICY_DNS_DOMAIN_INFO pddi;
+                SID sid;
+                DWORD padding[3];
+            };
+
+            struct di * xdi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*xdi));
+            HKEY key;
+            BOOL useDefault = TRUE;
+            LONG ret;
+
+            if ((ret = RegOpenKeyExA(HKEY_LOCAL_MACHINE,
+                 "System\\CurrentControlSet\\Services\\VxD\\VNETSUP", 0,
+                 KEY_READ, &key)) == ERROR_SUCCESS)
+            {
+                DWORD size = 0;
+                static const WCHAR wg[] = { 'W','o','r','k','g','r','o','u','p',0 };
+
+                ret = RegQueryValueExW(key, wg, NULL, NULL, NULL, &size);
+                if (ret == ERROR_MORE_DATA || ret == ERROR_SUCCESS)
+                {
+                    xdi->pddi.Name.Buffer = HeapAlloc(GetProcessHeap(),
+                                                      HEAP_ZERO_MEMORY, size);
+
+                    if ((ret = RegQueryValueExW(key, wg, NULL, NULL,
+                         (LPBYTE)xdi->pddi.Name.Buffer, &size)) == ERROR_SUCCESS)
+                    {
+                        xdi->pddi.Name.Length = (USHORT)size;
+                        useDefault = FALSE;
+                    }
+                    else
+                    {
+                        HeapFree(GetProcessHeap(), 0, xdi->pddi.Name.Buffer);
+                        xdi->pddi.Name.Buffer = NULL;
+                    }
+                }
+                RegCloseKey(key);
+            }
+            if (useDefault)
+            {
+                DWORD dwSize = MAX_COMPUTERNAME_LENGTH + 1;
+                LPWSTR buf = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, dwSize * sizeof(WCHAR));
+                if (GetComputerNameW(buf, &dwSize))
+                {
+                    xdi->pddi.Name.Buffer = buf;
+                    xdi->pddi.Name.Length = dwSize * sizeof(WCHAR);
+                }
+            }
+                                                                                
+            TRACE("setting domain to %s\n", debugstr_w(xdi->pddi.Name.Buffer));
+                                                                                
+            xdi->pddi.Sid = &(xdi->sid);
+                                                                                
+            /* read the computer SID from the registry */
+            if (!ADVAPI_GetComputerSid(&(xdi->sid)))
+            {
+                SID_IDENTIFIER_AUTHORITY localSidAuthority = {SECURITY_NT_AUTHORITY};
+                                                                                
+                xdi->sid.Revision = SID_REVISION;
+                xdi->sid.SubAuthorityCount = 4;
+                xdi->sid.IdentifierAuthority = localSidAuthority;
+                xdi->sid.SubAuthority[0] = SECURITY_NT_NON_UNIQUE;
+                xdi->sid.SubAuthority[1] = 0;
+                xdi->sid.SubAuthority[2] = 0;
+                xdi->sid.SubAuthority[3] = 0;
+            }
+                                                                                
+            TRACE("setting SID to %s\n", debugstr_sid(&xdi->sid));
+
+            *Buffer = xdi;
+        }
+        break;
         case  PolicyAuditLogInformation:
         case  PolicyPdAccountInformation:
         case  PolicyLsaServerRoleInformation:
@@ -471,7 +546,6 @@ NTSTATUS WINAPI LsaQueryInformationPolic
         case  PolicyModificationInformation:
         case  PolicyAuditFullSetInformation:
         case  PolicyAuditFullQueryInformation:
-        case  PolicyDnsDomainInformation:
         {
             FIXME("category not implemented\n");
             return STATUS_UNSUCCESSFUL;