NAME

       sd_bus_reply_method_error, sd_bus_reply_method_errorf, sd_bus_reply_method_errno,
       sd_bus_reply_method_errnof - Reply with an error to a 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_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, ...);

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_error(3). If no reply is expected to call, this function returns
       success without sending 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

       These functions return 0 if the error reply was successfully sent or if none was expected,
       and a negative errno-style error code otherwise.

   Errors
       Returned errors may indicate the following problems:

       -EINVAL
           The call message call is NULL.

           Message call is not a method call message.

           Message call is not attached to a bus.

           The error error parameter 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 message 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)