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/* Gopherfs node handling routines
Copyright (C) 2002 James A. Morrison <ja2morri@uwaterloo.ca>
Copyright (C) 2000 Igor Khavkine <igor@twu.net>
This file is part of the Gopherfs translator.
Gopherfs 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.
Gopherfs 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include "gopherfs.h"
#include <hurd/hurd_types.h>
#include <hurd/netfs.h>
/* free an instance of `struct netnode' */
void
free_netnode (struct netnode *nn)
{
free (nn->e->name);
free (nn->e->selector);
free (nn->e->server);
free (nn->e);
for (struct node *nd = nn->ents; nd; nd = nd->next)
free (nd);
free (nn);
}
/* free an instance of `struct node' */
void
free_node (struct node *node)
{
/* XXX possibly take care of cache references */
free_netnode (node->nn);
free (node);
}
/* Normalize filename: replace '/' by '-'. */
char *
normalize_filename (char *name)
{
char *s = strdup (name);
for (char *tmp = s; *tmp != '\0'; tmp++)
{
if (*tmp == '/')
*tmp = '-';
}
return s;
}
/* make an instance of `struct netnode' with the specified parameters,
return NULL on error */
static struct netnode *
gopherfs_make_netnode (struct gopher_entry *entry,
struct node *dir)
{
struct netnode *nn;
if (!entry)
return NULL;
nn = malloc (sizeof (struct netnode));
if (!nn)
return NULL;
memset (nn, 0, sizeof (struct netnode));
nn->dir = dir;
nn->e = malloc (sizeof (struct gopher_entry));
if (!nn->e)
{
free (nn);
return NULL;
}
debug ("Creating entry %s (selector %s, server %s, port %hu)",
entry->name,
entry->selector, entry->server, entry->port);
nn->e->name = normalize_filename (entry->name);
nn->e->type = entry->type;
nn->e->selector = strdup (entry->selector);
nn->e->server = strdup (entry->server);
nn->e->port = entry->port;
/* XXX init cache references */
if (!(nn->e->name && nn->e->selector && nn->e->server))
{
/* We are allowed to free NULL pointers */
free_netnode (nn);
return NULL;
}
return nn;
}
/* make an instance of `struct node' in DIR with the parameters in ENTRY.
return NULL on error */
struct node *
gopherfs_make_node (struct gopher_entry *entry,
struct node *dir)
{
struct netnode *nn;
struct node *nd;
nn = gopherfs_make_netnode (entry, dir);
if (!nn)
return NULL;
nd = netfs_make_node (nn);
if (!nd)
{
free (nn);
return NULL;
}
nd->next = NULL;
nd->prevp = NULL;
nd->owner = gopherfs->uid;
/* XXX Hold a reference to the new dir's node. */
spin_lock (&netfs_node_refcnt_lock);
nd->references++;
spin_unlock (&netfs_node_refcnt_lock);
/* fill in stat info for the node */
nd->nn_stat.st_mode = (S_IRUSR | S_IRGRP | S_IROTH) & ~gopherfs->umask;
nd->nn_stat.st_mode |= entry->type == GPHR_DIR ? S_IFDIR : S_IFREG;
nd->nn_stat.st_nlink = 1;
nd->nn_stat.st_uid = gopherfs->uid;
nd->nn_stat.st_gid = gopherfs->gid;
nd->nn_stat.st_rdev = 0;
nd->nn_stat.st_size = 0;
nd->nn_stat.st_blksize = 0;
nd->nn_stat.st_blocks = 0;
nd->nn_stat.st_ino = gopherfs->next_inode++;
fshelp_touch (&nd->nn_stat, TOUCH_ATIME | TOUCH_MTIME | TOUCH_CTIME,
gopherfs_maptime);
return nd;
}
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