## nng_bus_open

Create bus socket.

### Synopsis

```c
#include <nng/nng.h>
#include <nng/protocol/bus0/bus.h>

int nng_bus0_open(nng_socket *s);
int nng_bus0_open_raw(nng_socket *s);
```

### Description

The `nng_bus0_open` function creates a xref:../proto/bus.adoc[_BUS_] version 0
xref:index.adoc[socket] and returns it at the location pointed to by _s_.

The `nng_bus0_open_raw` function creates a _BUS_ version 0 socket in
xref:../sock/raw.adoc[raw mode], and returns it at the location pointed to by _s_.

### Return Values

These functions return 0 on success, and non-zero otherwise.

### Errors

[horizontal]
`NNG_ENOMEM`:: Insufficient memory is available.
`NNG_ENOTSUP`:: The protocol is not supported.

### See Also

xref:../proto/bus.adoc[Bus Protocol (_BUS_)]