---
name: "dpns_ping"
section: "3"
platform: "linux"
package: "libdpm-dev"
version: "1.10.0-2+b3"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/dpns_ping"
---

# dpns\_ping(3)

check if name server is alive and return its version number

## NAME

dpns\_ping - check if name server is alive and return its version number

## SYNOPSIS

**#include \<sys/types.h\>**\
 **#include "dpns\_api.h"**

**int dpns\_ping (char \****server***,** **char \****info***)**

## DESCRIPTION

**dpns\_ping** checks if the name server is alive and returns its version number.

## OPTIONS

- *server*

  specifies the DPNS Name Server hostname. If NULL, the DPNS\_HOST environment variable is used.

- *info*

  points at a buffer to receive the information (currently the version number). The buffer must be at least 256 characters long.

## RETURN VALUE

This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, **serrno** is set appropriately.

## ERRORS

- **EFAULT**

  *info* is a NULL pointer.

- **SENOSHOST**

  Host unknown.

- **SENOSSERV**

  Service unknown.

- **SECOMERR**

  Communication error.

- **ENSNACT**

  Name server is not running or is being shutdown.