lfc_readdirc - read LFC directory opened by lfc_opendir in the name
struct lfc_direncomm *lfc_readdirc (lfc_DIR *dirp)
lfc_readdirc 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 comment associated. lfc_readdirc
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.
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_readdirc 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_readdirc, then check serrno and
if it is non-zero, assume an error has occurred.
EBADF File descriptor in DIR structure is invalid.
EFAULT dirp is a NULL pointer.
SENOSHOST Host unknown.
SENOSSERV Service unknown.
SECOMERR Communication error.
ENSNACT Name server is not running or is being shutdown.
lfc_closedir(3), lfc_opendirg(3), lfc_rewinddir(3), lfc_setcomment (3)
LCG Grid Deployment Team