utils.h

/* utils.h - various small helper functions */

/*
 * Copyright (c) 2009, Natacha Porté
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef DDNS_UTILS_H
#define DDNS_UTILS_H

#include <sys/stat.h>


/* daemonize • daemonises the application (inspired from FreeBSD's daemon()) */
int
daemonize(void);


/* get_mtime • stat() a file and returns its modification time */
time_t
get_mtime(const char *filename);


/* set_user_root • chroot() and/or setuid()+setgid() */
int
set_user_root(const char *root, const char *user);


/* pidfile • prints the process id into the given file */
int
pidfile(const char *filename);

#endif /* ndef DDNS_UTILS_H */

/* vim: set filetype=c: */