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       dpns_stat  - get information about a DPNS file or directory in the name


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

       int dpns_lstat (const char *path, struct dpns_filestat *statbuf)

       int dpns_stat (const char *path, struct dpns_filestat *statbuf)

       int dpns_statx (const char *path,  struct  dpns_fileid  *file_uniqueid,
       struct dpns_filestat *statbuf)


       dpns_stat  gets  information about a DPNS file or directory in the name

       dpns_lstat  is  identical  to  dpns_stat  except  for  symbolic  links.
       dpns_lstat retrieves information about the link itself, while dpns_stat
       gets information about the file/directory referenced  by  the  symbolic

       dpns_statx  returns  the same information plus the file unique id (name
       server hostname and file id).  The file can be specified by  path  name
       or by file_uniqueid.  If both are given, file_uniqueid is used.

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

       The structure pointed to by statbuf contains the following members:
              u_signed64     fileid;        /* entry unique identifier */
              mode_t         filemode; /* see below */
              int       nlink;         /* number of files in a directory */
              uid_t          uid;
              gid_t          gid;
              u_signed64     filesize;
              time_t         atime;         /* last access to file */
              time_t         mtime;         /* last file modification */
              time_t         ctime;         /* last metadata modification */
              short          fileclass;          /*  1-->  experiment,  2  -->
              user */
              char      status;        /* ’-’ --> online, ’m’ --> migrated */

       filemode  is  constructed  by  OR’ing  the bits defined in <sys/stat.h>
       under Unix or  "statbits.h" under Windows/NT:

              S_IFLNK   0xA000          symbolic link
              S_IFREG   0x8000          regular file
              S_IFDIR   0x4000          directory
              S_ISUID   0004000         set user ID on execution
              S_ISGID   0002000         set group ID on execution
              S_ISVTX   0001000         sticky bit
              S_IRUSR   0000400         read by owner
              S_IWUSR   0000200         write by owner
              S_IXUSR   0000100         execute/search by owner
              S_IRGRP   0000040         read by group
              S_IWGRP   0000020         write by group
              S_IXGRP   0000010         execute/search by group
              S_IROTH   0000004         read by others
              S_IWOTH   0000002         write by others
              S_IXOTH   0000001         execute/search by others


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


       ENOENT       The  named  file/directory  does  not  exist  or is a null

       EACCES       Search permission is denied on a  component  of  the  path

       EFAULT       path or statbuf is a NULL pointer.

       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.


       Castor_limits(4),    dpns_chdir(3),    dpns_chmod(3),    dpns_chown(3),


       LCG Grid Deployment Team