static int main_unix(int argc, char* argv[]) {
#if !defined(__vms) && !defined(USE_OS2)
int fd;
fd=open("/dev/null", O_RDWR); /* open /dev/null before chroot */
if(fd<0)
fatal("Could not open /dev/null");
#endif /* standard Unix */
main_initialize();
if(main_configure(argc>1 ? argv[1] : NULL, argc>2 ? argv[2] : NULL))
return 1;
if(service_options.next) { /* there are service sections -> daemon mode */
#if !defined(__vms) && !defined(USE_OS2)
if(daemonize(fd))
return 1;
close(fd);
/* create_pid() must be called after drop_privileges()
* or it won't be possible to remove the file on exit */
/* create_pid() must be called after daemonize()
* since the final pid is not known beforehand */
if(create_pid())
return 1;
#endif /* standard Unix */
signal(SIGCHLD, signal_handler); /* handle dead children */
signal(SIGHUP, signal_handler); /* configuration reload */
signal(SIGUSR1, signal_handler); /* log reopen */
signal(SIGPIPE, SIG_IGN); /* ignore broken pipe */
if(signal(SIGTERM, SIG_IGN)!=SIG_IGN)
signal(SIGTERM, signal_handler); /* fatal */
if(signal(SIGQUIT, SIG_IGN)!=SIG_IGN)
signal(SIGQUIT, signal_handler); /* fatal */
if(signal(SIGINT, SIG_IGN)!=SIG_IGN)
signal(SIGINT, signal_handler); /* fatal */
daemon_loop();
} else { /* inetd mode */
#if !defined(__vms) && !defined(USE_OS2)
close(fd);
#endif /* standard Unix */
signal(SIGCHLD, SIG_IGN); /* ignore dead children */
signal(SIGPIPE, SIG_IGN); /* ignore broken pipe */
client_main(alloc_client_session(&service_options, 0, 1));
}
return 0;
}
NOEXPORT int main_unix(int argc, char* argv[]) {
int configure_status;
#if !defined(__vms) && !defined(USE_OS2)
int fd;
fd=open("/dev/null", O_RDWR); /* open /dev/null before chroot */
if(fd==INVALID_SOCKET)
fatal("Could not open /dev/null");
#endif
#ifdef WOLFSSL_DEBUG_ON
wolfSSL_Debugging_ON();
wolfSSL_SetLoggingCb((wolfSSL_Logging_cb)&wolfSSL_s_log);
#endif
main_init();
configure_status=main_configure(argc>1 ? argv[1] : NULL,
argc>2 ? argv[2] : NULL);
switch(configure_status) {
case 1: /* error -> exit with 1 to indicate error */
close(fd);
return 1;
case 2: /* information printed -> exit with 0 to indicate success */
close(fd);
return 0;
}
if(service_options.next) { /* there are service sections -> daemon mode */
#if !defined(__vms) && !defined(USE_OS2)
if(daemonize(fd)) {
close(fd);
return 1;
}
close(fd);
/* create_pid() must be called after drop_privileges()
* or it won't be possible to remove the file on exit */
/* create_pid() must be called after daemonize()
* since the final pid is not known beforehand */
if(create_pid())
return 1;
#endif
#ifndef USE_OS2
signal(SIGCHLD, signal_handler); /* handle dead children */
signal(SIGHUP, signal_handler); /* configuration reload */
signal(SIGUSR1, signal_handler); /* log reopen */
signal(SIGPIPE, SIG_IGN); /* ignore broken pipe */
if(signal(SIGTERM, SIG_IGN)!=SIG_IGN)
signal(SIGTERM, signal_handler); /* fatal */
if(signal(SIGQUIT, SIG_IGN)!=SIG_IGN)
signal(SIGQUIT, signal_handler); /* fatal */
if(signal(SIGINT, SIG_IGN)!=SIG_IGN)
signal(SIGINT, signal_handler); /* fatal */
#endif
daemon_loop();
} else { /* inetd mode */
#if !defined(__vms) && !defined(USE_OS2)
close(fd);
#endif /* standard Unix */
#ifndef USE_OS2
signal(SIGCHLD, SIG_IGN); /* ignore dead children */
signal(SIGPIPE, SIG_IGN); /* ignore broken pipe */
#endif
set_nonblock(0, 1); /* stdin */
set_nonblock(1, 1); /* stdout */
client_main(alloc_client_session(&service_options, 0, 1));
}
return 0;
}
static void daemon_loop(void) {
SOCKADDR_UNION addr;
s_poll_set fds;
LOCAL_OPTIONS *opt;
get_limits();
s_poll_zero(&fds);
#ifndef USE_WIN32
s_poll_add(&fds, signal_pipe_init(), 1, 0);
#endif
if(!local_options.next) {
s_log(LOG_ERR, "No connections defined in config file");
exit(1);
}
num_clients=0;
/* bind local ports */
for(opt=local_options.next; opt; opt=opt->next) {
if(!opt->option.accept) /* no need to bind this service */
continue;
memcpy(&addr, &opt->local_addr.addr[0], sizeof(SOCKADDR_UNION));
if((opt->fd=socket(addr.sa.sa_family, SOCK_STREAM, 0))<0) {
sockerror("local socket");
exit(1);
}
if(alloc_fd(opt->fd))
exit(1);
if(set_socket_options(opt->fd, 0)<0)
exit(1);
s_ntop(opt->local_address, &addr);
if(bind(opt->fd, &addr.sa, addr_len(addr))) {
s_log(LOG_ERR, "Error binding %s to %s",
opt->servname, opt->local_address);
sockerror("bind");
exit(1);
}
s_log(LOG_DEBUG, "%s bound to %s", opt->servname, opt->local_address);
if(listen(opt->fd, 5)) {
sockerror("listen");
exit(1);
}
#ifdef FD_CLOEXEC
fcntl(opt->fd, F_SETFD, FD_CLOEXEC); /* close socket in child execvp */
#endif
s_poll_add(&fds, opt->fd, 1, 0);
}
#if !defined (USE_WIN32) && !defined (__vms)
if(!(options.option.foreground))
daemonize();
drop_privileges();
create_pid();
#endif /* !defined USE_WIN32 && !defined (__vms) */
/* create exec+connect services */
for(opt=local_options.next; opt; opt=opt->next) {
if(opt->option.accept) /* skip ordinary (accepting) services */
continue;
enter_critical_section(CRIT_CLIENTS); /* for multi-cpu machines */
num_clients++;
leave_critical_section(CRIT_CLIENTS);
create_client(-1, -1, alloc_client_session(opt, -1, -1), client);
}
while(1) {
if(s_poll_wait(&fds, -1)<0) /* non-critical error */
log_error(LOG_INFO, get_last_socket_error(),
"daemon_loop: s_poll_wait");
else
for(opt=local_options.next; opt; opt=opt->next)
if(s_poll_canread(&fds, opt->fd))
accept_connection(opt);
}
s_log(LOG_ERR, "INTERNAL ERROR: End of infinite loop 8-)");
}
