sd_bus_can_send - Check which types can be sent over a bus object
void sd_bus_can_send(sd_bus *bus,
sd_bus_can_send is mostly used for checking if file descriptor passing is
available on the given bus. type can be any of the SD_BUS_TYPE
On failure, sd_bus_can_send() returns a negative errno-style error code.
If values of the given type can be sent over the given bus, it returns a
positive integer. Otherwise, it returns zero.
Returned errors may indicate the following problems:
The bus object bus could not be resolved.
The input parameter bus is NULL or the bus
is not connected.
The bus object bus was created in a different
These APIs are implemented as a shared library, which can be compiled and linked
to with the libsystemd pkg-config(1) file.