1/* MiniUPnP project
2 * http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
3 *
4 * Copyright (c) 2006, Thomas Bernard
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *     * Redistributions of source code must retain the above copyright
10 *       notice, this list of conditions and the following disclaimer.
11 *     * Redistributions in binary form must reproduce the above copyright
12 *       notice, this list of conditions and the following disclaimer in the
13 *       documentation and/or other materials provided with the distribution.
14 *     * The name of the author may not be used to endorse or promote products
15 *       derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29#ifndef __DAEMONIZE_H__
30#define __DAEMONIZE_H__
31
32#include "config.h"
33
34/* daemonize()
35 * "fork" to background, detach from terminal, etc...
36 * returns: pid of the daemon, exits upon failure */
37int
38daemonize(void);
39
40/* writepidfile()
41 * write the pid to a file */
42int
43writepidfile(const char * fname, int pid);
44
45/* checkforrunning()
46 * check for another instance running
47 * returns: 0 only instance
48 *          -1 invalid filename
49 *          -2 another instance running  */
50int
51checkforrunning(const char * fname);
52
53#endif
54
55