-/* $Cambridge: exim/src/src/daemon.c,v 1.8 2005/02/16 15:24:21 ph10 Exp $ */
+/* $Cambridge: exim/src/src/daemon.c,v 1.9 2005/02/17 11:58:25 ph10 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
int i;
int queue_only_reason = 0;
int old_pool = store_pool;
- int save_debug_selector = debug_selector;
+ int save_debug_selector = debug_selector;
BOOL local_queue_only;
#ifdef SA_NOCLDWAIT
struct sigaction act;
/* Attempt to get an id from the sending machine via the RFC 1413
protocol. We do this in the sub-process in order not to hold up the
main process if there is any delay. Then set up the fullhost information
- in case there is no HELO/EHLO.
-
- If debugging is enabled only for the daemon, we must turn if off while
- finding the id, but turn it on again afterwards so that information about the
+ in case there is no HELO/EHLO.
+
+ If debugging is enabled only for the daemon, we must turn if off while
+ finding the id, but turn it on again afterwards so that information about the
incoming connection is output. */
-
+
if (debug_daemon) debug_selector = 0;
verify_get_ident(IDENT_PORT);
host_build_sender_fullhost();
- debug_selector = save_debug_selector;
+ debug_selector = save_debug_selector;
DEBUG(D_any)
debug_printf("Process %d is handling incoming connection from %s\n",
DEBUG(D_any) debug_printf("child %d ended: status=0x%x\n", (int)pid,
status);
- /* If it's a listening daemon for which we are keeping track of individual
+ /* If it's a listening daemon for which we are keeping track of individual
subprocesses, deal with an accepting process that has terminated. */
if (smtp_slots != NULL)
#ifdef LOAD_AVG_NEEDS_ROOT
if (queue_only_load >= 0 || smtp_load_reserve >= 0 ||
- (deliver_queue_load_max >= 0 && deliver_drop_privilege))
+ (deliver_queue_load_max >= 0 && deliver_drop_privilege))
(void)os_getloadavg();
#endif
close(0); /* Get rid of stdin/stdout/stderr */
close(1);
close(2);
- exim_nullstd(); /* Connect stdin/stdout/stderr to /dev/null */
+ exim_nullstd(); /* Connect stdin/stdout/stderr to /dev/null */
log_stderr = NULL; /* So no attempt to copy paniclog output */
/* If the parent process of this one has pid == 1, we are re-initializing the
- daemon as the result of a SIGHUP. In this case, there is no need to do
+ daemon as the result of a SIGHUP. In this case, there is no need to do
anything, because the controlling terminal has long gone. Otherwise, fork, in
case current process is a process group leader (see 'man setsid' for an
explanation) before calling setsid(). */
if ((pid = fork()) == 0)
{
int sk;
-
+
DEBUG(D_any) debug_printf("Starting queue-runner: pid %d\n",
(int)getpid());
/* Disable debugging if it's required only for the daemon process. We
- leave the above message, because it ties up with the "child ended"
+ leave the above message, because it ties up with the "child ended"
debugging messages. */
if (debug_daemon) debug_selector = 0;
-
+
/* Close any open listening sockets in the child */
for (sk = 0; sk < listen_socket_count; sk++) close(listen_sockets[sk]);
}
DEBUG(D_any) debug_printf("Listening...\n");
-
- /* In rare cases we may have had a SIGCHLD signal in the time between
- setting the handler (below) and getting back here. If so, pretend that the
+
+ /* In rare cases we may have had a SIGCHLD signal in the time between
+ setting the handler (below) and getting back here. If so, pretend that the
select() was interrupted so that we reap the child. This might still leave
- a small window when a SIGCHLD could get lost. However, since we use SIGCHLD
+ a small window when a SIGCHLD could get lost. However, since we use SIGCHLD
only to do the reaping more quickly, it shouldn't result in anything other
than a delay until something else causes a wake-up. */
if (sigchld_seen)
{
lcount = -1;
- errno = EINTR;
+ errno = EINTR;
}
else
- {
+ {
lcount = select(max_socket + 1, (SELECT_ARG2_TYPE *)&select_listen,
NULL, NULL, NULL);
- }
+ }
if (lcount < 0)
{
select_failed = TRUE;
lcount = 1;
}
-
- /* Clean up any subprocesses that may have terminated. We need to do this
- here so that smtp_accept_max_per_host works when a connection to that host
- has completed, and we are about to accept a new one. When this code was
- later in the sequence, a new connection could be rejected, even though an
- old one had just finished. Preserve the errno from any select() failure for
+
+ /* Clean up any subprocesses that may have terminated. We need to do this
+ here so that smtp_accept_max_per_host works when a connection to that host
+ has completed, and we are about to accept a new one. When this code was
+ later in the sequence, a new connection could be rejected, even though an
+ old one had just finished. Preserve the errno from any select() failure for
the use of the common select/accept error processing below. */
-
+
select_errno = errno;
handle_ending_processes();
- errno = select_errno;
-
+ errno = select_errno;
+
/* Loop for all the sockets that are currently ready to go. If select
actually failed, we have set the count to 1 and select_failed=TRUE, so as
to use the common error code for select/accept below. */
tv.tv_sec = queue_interval;
tv.tv_usec = 0;
select(0, NULL, NULL, NULL, &tv);
- handle_ending_processes();
+ handle_ending_processes();
}
/* Re-enable the SIGCHLD handler if it has been run. It can't do it
git://git.exim.org / exim.git / blobdiff