int
b_connect_ (int s, struct sockaddr *name, int namelen, int timeout)
{
struct itimerval old_itimer;
unsigned int oldTimer;
sigset_t newMask, oldMask;
struct sigaction action, old_action;
if (getitimer (ITIMER_REAL, &old_itimer) < 0)
return -1;
action.sa_flags = 0;
action.sa_handler = (SIGFUNCTYPE) alarmer_;
sigfillset (&action.sa_mask);
sigaction (SIGALRM, &action, &old_action);
unblocksig (SIGALRM);
blockSigs_ (SIGALRM, &newMask, &oldMask);
oldTimer = alarm (timeout);
if (connect (s, name, namelen) < 0)
{
if (errno == EINTR)
errno = ETIMEDOUT;
alarm (oldTimer);
setitimer (ITIMER_REAL, &old_itimer, NULL);
sigaction (SIGALRM, &old_action, NULL);
sigprocmask (SIG_SETMASK, &oldMask, NULL);
return -1;
}
alarm (oldTimer);
setitimer (ITIMER_REAL, &old_itimer, NULL);
sigaction (SIGALRM, &old_action, NULL);
sigprocmask (SIG_SETMASK, &oldMask, NULL);
return 0;
}
void clientmgr (void *arg)
{
int status;
BINKD_CONFIG *config = NULL;
#if defined(WITH_PERL) && defined(HAVE_THREADS)
void *cperl = NULL;
#endif
UNUSED_ARG(arg);
#ifdef HAVE_FORK
pidcmgr = 0;
pidCmgr = (int) getpid();
blocksig();
signal (SIGCHLD, sighandler);
#elif HAVE_THREADS
pidcmgr = PID();
#endif
config = lock_current_config();
#if defined(WITH_PERL) && defined(HAVE_THREADS)
if (server_flag)
cperl = perl_init_clone(config);
#endif
setproctitle ("client manager");
Log (4, "clientmgr started");
for (;;)
{
if (config != current_config)
{
#if defined(WITH_PERL) && defined(HAVE_THREADS)
if (server_flag && cperl)
perl_done_clone(cperl);
#endif
if (config)
unlock_config_structure(config, 0);
config = lock_current_config();
#if defined(WITH_PERL) && defined(HAVE_THREADS)
if (server_flag)
cperl = perl_init_clone(config);
#endif
}
status = do_client(config);
if (status != 0 || binkd_exit) break;
if (
#ifdef HAVE_THREADS
!server_flag &&
#endif
!poll_flag)
checkcfg();
}
Log (5, "downing clientmgr...");
#if defined(WITH_PERL) && defined(HAVE_THREADS)
if (server_flag && cperl)
perl_done_clone(cperl);
#endif
unlock_config_structure(config, 0);
unblocksig();
#ifdef HAVE_THREADS
pidcmgr = 0;
PostSem(&eothread);
if (binkd_exit)
_endthread();
#endif
exit (0);
}
/*
* Run one client loop. Return -1 to exit
*/
static int do_client(BINKD_CONFIG *config)
{
FTN_NODE *r;
int pid;
if (!config->q_present)
{
q_free (SCAN_LISTED, config);
if (config->printq)
Log (-1, "scan\r");
q_scan (SCAN_LISTED, config);
config->q_present = 1;
if (config->printq)
{
LockSem (&lsem);
q_list (stderr, SCAN_LISTED, config);
ReleaseSem (&lsem);
Log (-1, "idle\r");
}
}
if (n_clients < config->max_clients)
{
if ((r = q_next_node (config)) != 0)
{
struct call_args args;
if (!bsy_test (&r->fa, F_BSY, config) ||
!bsy_test (&r->fa, F_CSY, config))
{
char szDestAddr[FTN_ADDR_SZ + 1];
ftnaddress_to_str (szDestAddr, &r->fa);
Log (4, "%s busy, skipping", szDestAddr);
return 0; /* go to the next node */
}
rel_grow_handles (6);
threadsafe(++n_clients);
lock_config_structure(config);
args.node = r;
args.config = config;
if ((pid = branch (call, &args, sizeof (args))) < 0)
{
unlock_config_structure(config, 0);
rel_grow_handles (-6);
threadsafe(--n_clients);
PostSem(&eothread);
Log (1, "cannot branch out");
unblocksig();
SLEEP(1);
blocksig();
check_child(&n_clients);
}
#if !defined(DEBUGCHILD)
else
{
Log (5, "started client #%i, id=%i", n_clients, pid);
#if defined(HAVE_FORK) && !defined(AMIGA)
unlock_config_structure(config, 0); /* Forked child has own copy */
#endif
}
#endif
}
else
{
if (poll_flag)
{
if (n_clients <= 0 && q_not_empty (config) == 0)
{
Log (4, "the queue is empty, quitting...");
return -1;
}
} else
config->q_present = 0;
unblocksig();
SLEEP (config->rescan_delay);
blocksig();
check_child(&n_clients);
}
}
else
{
unblocksig();
SLEEP (config->call_delay);
blocksig();
check_child(&n_clients);
}
return 0;
}
static int do_server(BINKD_CONFIG *config)
{
struct addrinfo *ai, *aiHead, hints;
int aiErr;
SOCKET new_sockfd;
int pid;
socklen_t client_addr_len;
struct sockaddr_storage client_addr;
int opt = 1;
int save_errno;
struct listenchain *listen_list;
/* setup hints for getaddrinfo */
memset((void *)&hints, 0, sizeof(hints));
hints.ai_flags = AI_PASSIVE;
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
for (listen_list = config->listen.first; listen_list; listen_list = listen_list->next)
{
if ((aiErr = getaddrinfo(listen_list->addr[0] ? listen_list->addr : NULL,
listen_list->port, &hints, &aiHead)) != 0)
{
Log(0, "servmgr getaddrinfo: %s (%d)", gai_strerror(aiErr), aiErr);
return -1;
}
for (ai = aiHead; ai != NULL && sockfd_used < MAX_LISTENSOCK; ai = ai->ai_next)
{
sockfd[sockfd_used] = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
if (sockfd[sockfd_used] < 0)
{
Log (0, "servmgr socket(): %s", TCPERR ());
continue;
}
#ifdef UNIX /* Not sure how to set NOINHERIT flag for socket on Windows and OS/2 */
if (fcntl(sockfd[sockfd_used], F_SETFD, FD_CLOEXEC) != 0)
Log(1, "servmgr fcntl set FD_CLOEXEC error: %s", strerror(errno));
#endif
#ifdef IPV6_V6ONLY
if (ai->ai_family == PF_INET6)
{
int v6only = 1;
if (setsockopt(sockfd[sockfd_used], IPPROTO_IPV6, IPV6_V6ONLY,
(char *) &v6only, sizeof(v6only)) == SOCKET_ERROR)
Log(1, "servmgr setsockopt (IPV6_V6ONLY): %s", TCPERR());
}
#endif
if (setsockopt (sockfd[sockfd_used], SOL_SOCKET, SO_REUSEADDR,
(char *) &opt, sizeof opt) == SOCKET_ERROR)
Log (1, "servmgr setsockopt (SO_REUSEADDR): %s", TCPERR ());
if (bind (sockfd[sockfd_used], ai->ai_addr, ai->ai_addrlen) != 0)
{
Log (0, "servmgr bind(): %s", TCPERR ());
soclose(sockfd[sockfd_used]);
continue;
}
if (listen (sockfd[sockfd_used], 5) != 0)
{
Log(0, "servmgr listen(): %s", TCPERR ());
soclose(sockfd[sockfd_used]);
continue;
}
sockfd_used++;
}
Log (3, "servmgr listen on %s:%s", listen_list->addr[0] ? listen_list->addr : "*", listen_list->port);
freeaddrinfo(aiHead);
}
if (sockfd_used == 0) {
Log(0, "servmgr: No listen socket open");
return -1;
}
setproctitle ("server manager (listen %s)", config->listen.first->port);
for (;;)
{
struct timeval tv;
int n;
int curfd, maxfd = 0;
fd_set r;
FD_ZERO (&r);
for (curfd=0; curfd<sockfd_used; curfd++)
{
FD_SET (sockfd[curfd], &r);
if (sockfd[curfd] > maxfd)
maxfd = sockfd[curfd];
}
tv.tv_usec = 0;
tv.tv_sec = CHECKCFG_INTERVAL;
unblocksig();
check_child(&n_servers);
n = select(maxfd+1, &r, NULL, NULL, &tv);
blocksig();
switch (n)
{ case 0: /* timeout */
if (checkcfg())
{
for (curfd=0; curfd<sockfd_used; curfd++)
soclose(sockfd[curfd]);
sockfd_used = 0;
return 0;
}
unblocksig();
check_child(&n_servers);
blocksig();
continue;
case -1:
save_errno = TCPERRNO;
if (binkd_exit)
goto accepterr;
if (TCPERRNO == EINTR)
{
unblocksig();
check_child(&n_servers);
blocksig();
if (checkcfg())
{
for (curfd=0; curfd<sockfd_used; curfd++)
soclose(sockfd[curfd]);
sockfd_used = 0;
return 0;
}
continue;
}
Log (1, "servmgr select(): %s", TCPERR ());
goto accepterr;
}
for (curfd=0; curfd<sockfd_used; curfd++)
{
if (!FD_ISSET(sockfd[curfd], &r))
continue;
client_addr_len = sizeof (client_addr);
if ((new_sockfd = accept (sockfd[curfd], (struct sockaddr *)&client_addr,
&client_addr_len)) == INVALID_SOCKET)
{
save_errno = TCPERRNO;
if (save_errno != EINVAL && save_errno != EINTR)
{
if (!binkd_exit)
Log (1, "servmgr accept(): %s", TCPERR ());
#ifdef UNIX
if (save_errno == ECONNRESET ||
save_errno == ETIMEDOUT ||
save_errno == ECONNABORTED ||
save_errno == EHOSTUNREACH)
continue;
#endif
accepterr:
#ifdef OS2
/* Buggy external process closed our socket? Or OS/2 bug? */
if (save_errno == ENOTSOCK)
return 0; /* will force socket re-creation */
#endif
return -1;
}
}
else
{
char host[BINKD_FQDNLEN + 1];
char service[MAXSERVNAME + 1];
int aiErr;
add_socket(new_sockfd);
/* Was the socket created after close_sockets loop in exitfunc()? */
if (binkd_exit)
{
del_socket(new_sockfd);
soclose(new_sockfd);
continue;
}
rel_grow_handles (6);
ext_rand=rand();
/* never resolve name in here, will be done during session */
aiErr = getnameinfo((struct sockaddr *)&client_addr, client_addr_len,
host, sizeof(host), service, sizeof(service),
NI_NUMERICHOST | NI_NUMERICSERV);
if (aiErr == 0)
Log (3, "incoming from %s (%s)", host, service);
else
{
Log(2, "Error in getnameinfo(): %s (%d)", gai_strerror(aiErr), aiErr);
Log(3, "incoming from unknown");
}
/* Creating a new process for the incoming connection */
threadsafe(++n_servers);
if ((pid = branch (serv, (void *) &new_sockfd, sizeof (new_sockfd))) < 0)
{
del_socket(new_sockfd);
soclose(new_sockfd);
rel_grow_handles (-6);
threadsafe(--n_servers);
PostSem(&eothread);
Log (1, "servmgr branch(): cannot branch out");
sleep(1);
}
else
{
Log (5, "started server #%i, id=%i", n_servers, pid);
#if defined(HAVE_FORK) && !defined(HAVE_THREADS)
soclose (new_sockfd);
#endif
}
}
}
}
}
