SD_BUS_REPLY_METHOD_ERROR(3)                         sd_bus_reply_method_error

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
       Functions described here are available as a shared library, which can
       be compiled against and linked to with the libsystemd pkg-config(1)
       file.

       The code described here uses getenv(3), which is declared to be not
       multi-thread-safe. This means that the code calling the functions
       described here must not call setenv(3) from a parallel thread. It is
       recommended to only do calls to setenv() from an early phase of the
       program when no other threads have been started.

SEE ALSO
       systemd(1), sd-bus(3), sd_bus_message_new_method_error(3)

systemd 255                                       SD_BUS_REPLY_METHOD_ERROR(3)