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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* daemon.cc
*
* Thu Jun 9 10:27:59 CEST 2005
* Copyright 2005 Bent Bisballe
* deva@aasimon.org
****************************************************************************/
/*
* 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 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 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 02111-1307 USA
*/
#include "daemon.h"
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
Daemon::Daemon()
{}
Daemon::~Daemon()
{}
int Daemon::run(uid_t uid, gid_t gid)
{
int f;
int fd;
chdir("/");
umask(0);
f = fork();
switch(f) {
case -1: // Fork error
perror("Fork in daemon.cc");
return 1;
case 0: // Forked child
if(setgid(gid) != 0) {
fprintf(stderr, "Failed to change to gid %d, quitting.\n", gid);
return 1;
}
if(setuid(uid) != 0) {
fprintf(stderr, "Failed to change to uid %d, quitting.\n", uid);
return 1;
}
// Redirect stdin, stdout and stderr to /dev/null
fd = open("/dev/null", O_NOCTTY | O_RDWR, 0666);
dup2(0, fd);
dup2(1, fd);
dup2(2, fd);
setsid();
signal (SIGTERM, SIG_IGN);
signal (SIGINT, SIG_IGN);
signal (SIGHUP, SIG_IGN);
return daemon_main();
default: // Parent
// exit(0);
return 0;
}
}
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