NAME

       rfio_chown - change owner and group of a directory/file

SYNOPSIS

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

       int rfio_chown (const char *path, uid_t new_uid, gid_t new_gid)

DESCRIPTION

       rfio_chown sets the owner and the group of a directory/file to the numeric values in owner
       and group respectively.  If owner or group is  specified  as  -1,  rfio_chown()  does  not
       change the corresponding ID of the file.

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

       The effective user ID of the process must match the owner of the file or be super-user.

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

       EPERM        The  effective user ID does not match the owner of the file and is not super-
                    user.

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

       EACCES       Search permission is denied on a  component  of  the  path  prefix  or  write
                    permission on the file itself is denied.

       EFAULT       path is a NULL pointer.

       ENOTDIR      A component of path prefix is not a directory.

       EINVAL       new_uid or new_gid is invalid.

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

       SENOSHOST    Host unknown.

       SENOSSERV    Service unknown.

       SETIMEDOUT   Timed out.

       SECONNDROP   Connection closed by remote end.

       SECOMERR     Communication error.

SEE ALSO

       Castor_limits(4)

AUTHOR

       LCG Grid Deployment Team