Manpages - sd_bus_reply_method_error.3
Table of Contents
NAME
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
SYNOPSIS
#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.
NOTES
These APIs are implemented as a shared library, which can be compiled and linked to with the libsystemd *pkg-config*(1) file.
SEE ALSO
*systemd*(1), *sd-bus*(3), *sd_bus_message_new_method_error*(3)