sd_bus_reply_method_error

systemd
sd_bus_reply_method_error 3
sd_bus_reply_method_error sd_bus_reply_method_errorf sd_bus_reply_method_errorfv sd_bus_reply_method_errno sd_bus_reply_method_errnof sd_bus_reply_method_errnofv Reply with an error to a D-Bus method call

    #include <systemd/sd-bus.h>

int sd_bus_reply_method_error sd_bus_message *call const sd_bus_error *e int sd_bus_reply_method_errorf sd_bus_message *call const char *name const char *format ... int sd_bus_reply_method_errorfv sd_bus_message *call const char *name const char *format va_list ap int sd_bus_reply_method_errno sd_bus_message *call int error const sd_bus_error *p int sd_bus_reply_method_errnof sd_bus_message *call int error const char *format ... int sd_bus_reply_method_errnofv sd_bus_message *call int error const char *format va_list ap

## Description

The `sd_bus_reply_method_error()` function sends an error reply to the call message. The error structure e specifies the error to send, and is used as described in sd_bus_message_new_method_error 3. If no reply is expected to call, this function succeeds without sending a reply.

The `sd_bus_reply_method_errorf()` is to `sd_bus_reply_method_error()` what `sd_bus_message_new_method_errorf()` is to `sd_bus_message_new_method_error()`.

The `sd_bus_reply_method_errno()` is to `sd_bus_reply_method_error()` what `sd_bus_message_new_method_errno()` is to `sd_bus_message_new_method_error()`.

The `sd_bus_reply_method_errnof()` is to `sd_bus_reply_method_error()` what `sd_bus_message_new_method_errnof()` is to `sd_bus_message_new_method_error()`.

## Return Value

This function returns a non-negative integer if the error reply was successfully sent or if call does not expect a reply. On failure, it returns a negative errno-style error code.

### Errors

Returned errors may indicate the following problems:

`-EINVAL`

  The input parameter call is `NULL`.

  Message call is not a method call message.

  Message call is not attached to a bus.

  The error parameter e to `sd_bus_reply_method_error()` is not set, see sd_bus_error_is_set 3.

`-EPERM`

  Message call has been sealed.

`-ENOTCONN`

  The bus to which message call is attached is not connected.

`-ENOMEM`

  Memory allocation failed.

In addition, any error returned by sd_bus_send 1 may be returned.

## See Also

systemd 1, sd-bus 3, sd_bus_message_new_method_error 3