Check if disk pool manager is alive and return its version number
#include <sys/types.h>
#include "dpm_api.h"
int dpm_ping (char *server, char *info)
dpm_ping checks if the Disk Pool Manager is alive and returns its version number.
server
specifies the Disk Pool Manager hostname. If NULL, the DPM_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.
This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.
EFAULT
info is a NULL pointer.
SENOSHOST
Host unknown.
SENOSSERV
Service unknown.
SECOMERR
Communication error.
EDPMNACT
Disk Pool Manager is not running or is being shutdown.