Get user name associated with a given virtual uid
#include <sys/types.h>
#include "dpns_api.h"
int dpns_getusrbyuid (uid_t uid, char *username)
dpns_getusrbyuid gets the user name associated with a given virtual uid.
uid
specifies the Virtual User Id.
username
points at a buffer to receive the associated user name. 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
username is a NULL pointer.
EINVAL
This uid does not exist in the internal mapping table.
SENOSHOST
Host unknown.
SENOSSERV
Service unknown.
SECOMERR
Communication error.
ENSNACT
Name server is not running or is being shutdown.