NAME

       lfc_readdirxc - read LFC directory opened by lfc_opendir in the name server

SYNOPSIS

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

       struct lfc_direnstatc *lfc_readdirxc (lfc_DIR *dirp)

DESCRIPTION

       lfc_readdirxc  reads  the  LFC  directory  opened by lfc_opendir in the name server.  This
       routine returns a pointer to a structure containing the current directory entry  including
       the  stat  information and the comment associated.  lfc_readdirxc caches a variable number
       of such entries, depending on the filename size, to minimize the number of requests to the
       name server.

       dirp   specifies the pointer value returned by lfc_opendir.

RETURN VALUE

       This  routine  returns  a pointer to a structure containing the current directory entry if
       the operation was successful or NULL if the end of the directory was  reached  or  if  the
       operation  failed. When the end of the directory is encountered, serrno is not changed. If
       the operation failed, serrno is set appropriately.

       As lfc_readdirxc returns a null pointer both at the end of the directory and on error,  an
       application  wishing  to  check  for  error  situations  should set serrno to 0, then call
       lfc_readdirxc, then check serrno and if it is non-zero, assume an error has occurred.

ERRORS

       EBADF        File descriptor in DIR structure is invalid.

       EFAULT       dirp is a NULL pointer.

       SECOMERR     Communication error.

       ENSNACT      Name server is not running or is being shutdown.

SEE ALSO

       lfc_closedir(3), lfc_opendirg(3), lfc_rewinddir(3), lfc_setcomment(3), stat(2)

AUTHOR

       LCG Grid Deployment Team