s3-spoolss: Added a winreg function to query a dword.

Signed-off-by: Günther Deschner <gd@samba.org>

diff --git a/source3/rpc_server/srv_spoolss_util.c b/source3/rpc_server/srv_spoolss_util.c
index 95f292a5a37da44d7fe57bde30f9c7b35b7843fc..60a09b08d9d7ce2a85172995212d8d3291e675cf 100644 (file)
--- a/source3/rpc_server/srv_spoolss_util.c
+++ b/source3/rpc_server/srv_spoolss_util.c
@@ -858,6 +858,81 @@ static WERROR winreg_printer_write_binary(TALLOC_CTX *mem_ctx,
        return result;
 }
 
+static WERROR winreg_printer_query_dword(TALLOC_CTX *mem_ctx,
+                                        struct rpc_pipe_client *pipe_handle,
+                                        struct policy_handle *key_handle,
+                                        const char *value,
+                                        uint32_t *data)
+{
+       struct winreg_String wvalue;
+       enum winreg_Type type;
+       WERROR result = WERR_OK;
+       uint32_t value_len = 0;
+       NTSTATUS status;
+       DATA_BLOB blob;
+
+       wvalue.name = value;
+       status = rpccli_winreg_QueryValue(pipe_handle,
+                                         mem_ctx,
+                                         key_handle,
+                                         &wvalue,
+                                         &type,
+                                         NULL,
+                                         (uint32_t *) &blob.length,
+                                         &value_len,
+                                         &result);
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(0, ("winreg_printer_query_dword: Could not query value %s: %s\n",
+                         wvalue.name, nt_errstr(status)));
+               if (!W_ERROR_IS_OK(result)) {
+                       goto done;
+               }
+               result = ntstatus_to_werror(status);
+               goto done;
+       }
+
+       if (type != REG_DWORD) {
+               result = WERR_INVALID_DATATYPE;
+               goto done;
+       }
+
+       if (blob.length != 4) {
+               result = WERR_INVALID_DATA;
+               goto done;
+       }
+
+       blob.data = (uint8_t *) TALLOC(mem_ctx, blob.length);
+       if (blob.data == NULL) {
+               result = WERR_NOMEM;
+               goto done;
+       }
+       value_len = 0;
+
+       status = rpccli_winreg_QueryValue(pipe_handle,
+                                         mem_ctx,
+                                         key_handle,
+                                         &wvalue,
+                                         &type,
+                                         blob.data,
+                                         (uint32_t *) &blob.length,
+                                         &value_len,
+                                         &result);
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(0, ("winreg_printer_query_dword: Could not query value %s: %s\n",
+                         wvalue.name, nt_errstr(status)));
+               if (!W_ERROR_IS_OK(result)) {
+                       result = ntstatus_to_werror(status);
+               }
+               goto done;
+       }
+
+       if (data) {
+               *data = IVAL(blob.data, 0);
+       }
+done:
+       return result;
+}
+
 /********************************************************************
  Public winreg function for spoolss
 ********************************************************************/