/*****************************************************************************
 *  __________________    _________  _____            _____  .__         ._.
 *  \______   \______ \  /   _____/ /     \          /  _  \ |__| ____   | |
 *   |    |  _/|    |  \ \_____  \ /  \ /  \        /  /_\  \|  _/ __ \  | |
 *   |    |   \|    `   \/        /    Y    \      /    |    |  \  ___/   \|
 *   |______  /_______  /_______  \____|__  / /\   \____|__  |__|\___ |   __
 *          \/        \/        \/        \/  )/           \/        \/   \/
 *
 * This file is part of liBDSM. Copyright © 2014-2015 VideoLabs SAS
 *
 * Author: Julien 'Lta' BALLET <contact@lta.io>
 *
 * liBDSM is released under LGPLv2.1 (or later) and is also available
 * under a commercial license.
 *****************************************************************************
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

/*
 * Copyright (c) 2003-2017
 * Distributed Systems Software.  All rights reserved.
 */

#include "config.h"

#include <netinet/in.h>
#include <assert.h>

#include "smb_fd.h"

#ifndef lint
static MAYBE_UNUSED const char copyright[] =
"Copyright (c) 2003-2017\n\
Distributed Systems Software.  All rights reserved.";
static MAYBE_UNUSED const char revid[] =
  "$Id: smb_fd.c 2958 2017-05-18 18:56:19Z brachman $";
#endif

void
smb_session_share_add(smb_session *s, smb_share *share)
{
  smb_share *iter;

  assert(s != NULL && share != NULL);

  if (s->shares == NULL) {
	s->shares = share;
	return;
  }

  iter = s->shares;
  while (iter->next != NULL)
	iter = iter->next;
  iter->next = share;
}

smb_share *
smb_session_share_get(smb_session *s, smb_tid tid)
{
  smb_share *iter;

  assert(s != NULL);

  iter = s->shares;
  while (iter != NULL && iter->tid != tid)
	iter = iter->next;

  return(iter);
}

smb_share *
smb_session_share_remove(smb_session *s, smb_tid tid)
{
  smb_share *iter, *keep;

  assert(s != NULL);

  iter = s->shares;

  if (iter == NULL)
	return(NULL);

  if (iter->tid == tid) {
	s->shares = s->shares->next;
	return(iter);
  }

  while (iter->next != NULL && iter->next->tid != tid)
	iter = iter->next;

  if (iter->next != NULL) { // We found it
	keep = iter->next;
	iter->next = iter->next->next;
	return(keep);
  }

  return(NULL);
}

void
smb_session_share_clear(smb_session *s)
{
  smb_share *iter, *tmp;
  smb_file *fiter, *ftmp;

  assert(s != NULL);

  iter = s->shares;
  while (iter != NULL) {        
	fiter = iter->files;
	while (fiter != NULL) {
	  ftmp = fiter;
	  fiter = fiter->next;

	  free(ftmp->name);
	  free(ftmp);
	}   

	tmp = iter;
	iter = iter->next;
	free(tmp);
  }
}

int
smb_session_file_add(smb_session *s, smb_tid tid, smb_file *f)
{
  smb_share *share;
  smb_file *iter;

  assert(s != NULL && f != NULL);

  if ((share = smb_session_share_get(s, tid)) == NULL)
	return(0);

  if (share->files == NULL)
	share->files = f;
  else {
	iter = share->files;
	while (iter->next != NULL)
	  iter = iter->next;
	iter->next = f;
  }

  return(1);
}

smb_file *
smb_session_file_get(smb_session *s, smb_fd fd)
{
  smb_share *share;
  smb_file  *iter;

  assert(s != NULL && fd);

  if ((share = smb_session_share_get(s, SMB_FD_TID(fd))) == NULL)
	return(NULL);

  iter = share->files;
  while (iter != NULL && iter->fid != SMB_FD_FID(fd))
	iter = iter->next;

  return(iter);
}

smb_file *
smb_session_file_remove(smb_session *s, smb_fd fd)
{
  smb_share *share;
  smb_file *iter, *keep;

  assert(s != NULL && fd);

  if ((share = smb_session_share_get(s, SMB_FD_TID(fd))) == NULL)
	return(NULL);

  iter = share->files;

  if (iter == NULL)
	return(NULL);

  if (iter->fid == SMB_FD_FID(fd)) {
	share->files = iter->next;
	return(iter);
  }

  while (iter->next != NULL && iter->next->fid != SMB_FD_TID(fd))
	iter = iter->next;

  if (iter->next != NULL) {
	keep = iter->next;
	iter->next = iter->next->next;
	return(keep);
  }

  return(NULL);
}
