NAME

       dpns_opendir - open a DPNS directory, having the specified GUID, in the name server

SYNOPSIS

       #include <sys/types.h>
       #include "dpns_api.h"

       dpns_DIR *dpns_opendir (const char *path, const char *guid)

       dpns_DIR *dpns_opendirxg (char *server, const char *path, const char *guid)

DESCRIPTION

       dpns_opendir  opens  a  DPNS  directory,  having  the  specified  GUID,  in the name server to be used in
       subsequent dpns_readdir operations.  A dpns_DIR structure and a buffer to cache the directory entries are
       allocated in the client API.

       guid   specifies the Grid Unique IDentifier.

       path   specifies the logical pathname relative to the current DPNS directory or the full DPNS pathname.

RETURN VALUE

       This routine returns a pointer to be used in the subsequent directory function calls if the operation was
       successful or NULL if the operation failed. In the latter case, serrno is set appropriately.

ERRORS

       ENOENT       A component of path prefix does not exist or path is a null pathname.

       EACCES       Search permission is denied on a component of the path prefix or read permission  is  denied
                    on path.

       EFAULT       path is a NULL pointer.

       EINVAL       The length of the guid component exceeds CA_MAXGUIDLEN.

       ENOTDIR      A component of path prefix is not a directory.

       ENAMETOOLONG The  length  of  path  exceeds  CA_MAXPATHLEN  or  the  length  of  a path component exceeds
                    CA_MAXNAMELEN.

       SENOSHOST    Host unknown.

       SENOSSERV    Service unknown.

       SECOMERR     Communication error.

       ENSNACT      Name server is not running or is being shutdown.

SEE ALSO

       Castor_limits(4), dpns_chdir(3), dpns_closedir(3), dpns_readdir(3), dpns_rewinddir(3)

AUTHOR

       LCG Grid Deployment Team

DPNS                                      $Date: 2005/11/22 15:59:39 $                          DPNS_OPENDIRG(3)