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/* Fetch file stats
Copyright (C) 1997 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <unistd.h>
#include <errno.h>
#include <ftpconn.h>
/* Start an operation to get a list of file-stat structures for NAME (this
is often similar to ftp_conn_start_dir, but with OS-specific flags), and
return a file-descriptor for reading on, and a state structure in STATE
suitable for passing to cont_get_stats. FORCE_DIR controls what happens if
NAME refers to a directory: if FORCE_DIR is false, STATS will contain
entries for all files *in* NAME, and if FORCE_DIR is true, it will
contain just a single entry for NAME itself (or an error will be
returned when this isn't possible). */
error_t
ftp_conn_start_get_stats (struct ftp_conn *conn,
const char *name, int force_dir,
int *fd, void **state)
{
if (conn->syshooks.start_get_stats)
return
(*conn->syshooks.start_get_stats) (conn, name, force_dir, fd, state);
else
return EOPNOTSUPP;
}
/* Read stats information from FD, calling ADD_STAT for each new stat (HOOK
is passed to ADD_STAT). FD and STATE should be returned from
start_get_stats. If this function returns EAGAIN, then it should be
called again to finish the job (possibly after calling select on FD); if
it returns 0, then it is finishe,d and FD and STATE are deallocated. */
error_t
ftp_conn_cont_get_stats (struct ftp_conn *conn, int fd, void *state,
ftp_conn_add_stat_fun_t add_stat, void *hook)
{
if (conn->syshooks.cont_get_stats)
return (*conn->syshooks.cont_get_stats) (conn, fd, state, add_stat, hook);
else
return EOPNOTSUPP;
}
/* Get a list of file-stat structures for NAME, calling ADD_STAT for each one
(HOOK is passed to ADD_STAT). If NAME refers to an ordinary file, a
single entry for it is returned for it; if NAME refers to a directory,
then if FORCE_DIR is false, STATS will contain entries for all files *in*
NAME, and if FORCE_DIR is true, it will contain just a single entry for
NAME itself (or an error will be returned when this isn't possible). This
function may block. */
error_t
ftp_conn_get_stats (struct ftp_conn *conn,
const char *name, int force_dir,
ftp_conn_add_stat_fun_t add_stat, void *hook)
{
int fd;
void *state;
error_t err = ftp_conn_start_get_stats (conn, name, force_dir, &fd, &state);
if (err)
return err;
do
err = ftp_conn_cont_get_stats (conn, fd, state, add_stat, hook);
while (err == EAGAIN);
return err;
}
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