sd_bus_can_send

systemd
sd_bus_can_send 3
sd_bus_can_send Check which types can be sent over a bus object

    #include <systemd/sd-bus.h>

void `sd_bus_can_send` sd_bus *bus char type

## Description

`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` constants.

## Return Value

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.

### Errors

Returned errors may indicate the following problems:

`-ENOPKG`

  The bus object bus could not be resolved.

`-ENOTCONN`

  The input parameter bus is `NULL` or the bus is not connected.

`-ECHILD`

  The bus object bus was created in a different process.

## See Also

systemd 1, sd-bus 3