sd_bus_set_sender, sd_bus_get_sender — Configure default sender for outgoing messages
|const char* name|
|const char** name|
sd_bus_set_sender() configures the default sender service name to use for outgoing
messages. The service name specified in the
name parameter is set on all outgoing messages
that are sent on the connection and have no sender set yet, for example through
that this function is only supported on direct connections, i.e. not on connections to a bus broker as the broker
will fill in the sender service name automatically anyway. By default no sender name is configured, and hence
messages are sent without sender field set. If the
name parameter is specified as
NULL the default sender service name is cleared, returning to the default state if a default
sender service name was set before. If passed as non-
NULL the specified name must be a valid
unique or well-known service name.
sd_bus_get_sender() may be used to query the current default service name for outgoing
On success, these functions return 0 or a positive integer. On failure, they return a negative errno-style error code.
Returned errors may indicate the following problems:
sd_bus_get_sender() are available as
a shared library, which can be compiled and linked to with the
libsystemd pkg-config(1) file.