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.