static void
never_error(uschar *log_msg, uschar *smtp_msg, int was_errno)
{
-uschar *emsg = (was_errno <= 0)? US"" :
- string_sprintf(": %s", strerror(was_errno));
+uschar *emsg = was_errno <= 0
+ ? US"" : string_sprintf(": %s", strerror(was_errno));
log_write(0, LOG_MAIN|LOG_PANIC, "%s%s", log_msg, emsg);
-if (smtp_out != NULL) smtp_printf("421 %s\r\n", FALSE, smtp_msg);
+if (smtp_out) smtp_printf("421 %s\r\n", FALSE, smtp_msg);
}
int save_log_selector = *log_selector;
gstring * whofrom;
-void *reset_point = store_get(0);
+rmark reset_point = store_mark();
/* Make the address available in ASCII representation, and also fish out
the remote port. */
whofrom = string_append(NULL, 3, "[", sender_host_address, "]");
if (LOGGING(incoming_port))
- whofrom = string_append(whofrom, 2, ":", string_sprintf("%d", sender_host_port));
+ whofrom = string_fmt_append(whofrom, ":%d", sender_host_port);
if (LOGGING(incoming_interface))
- whofrom = string_append(whofrom, 4, " I=[",
- interface_address, "]:", string_sprintf("%d", interface_port));
+ whofrom = string_fmt_append(whofrom, " I=[%s]:%d",
+ interface_address, interface_port);
(void) string_from_gstring(whofrom); /* Terminate the newly-built string */
if ((max_for_this_host > 0) &&
(smtp_accept_count >= max_for_this_host))
{
- int i;
int host_accept_count = 0;
int other_host_count = 0; /* keep a count of non matches to optimise */
- for (i = 0; i < smtp_accept_max; ++i)
+ for (int i = 0; i < smtp_accept_max; ++i)
if (smtp_slots[i].host_address)
{
if (Ustrcmp(sender_host_address, smtp_slots[i].host_address) == 0)
"please try again later.\r\n", FALSE);
mac_smtp_fflush();
search_tidyup();
- _exit(EXIT_FAILURE);
+ exim_underbar_exit(EXIT_FAILURE);
}
}
else if (*nah) smtp_active_hostname = nah;
{
mac_smtp_fflush();
search_tidyup();
- _exit(EXIT_SUCCESS);
+ exim_underbar_exit(EXIT_SUCCESS);
}
for (;;)
{
int rc;
message_id[0] = 0; /* Clear out any previous message_id */
- reset_point = store_get(0); /* Save current store high water point */
+ reset_point = store_mark(); /* Save current store high water point */
DEBUG(D_any)
debug_printf("Process %d is ready for new message\n", (int)getpid());
cancel_cutthrough_connection(TRUE, US"receive dropped");
mac_smtp_fflush();
smtp_log_no_mail(); /* Log no mail if configured */
- _exit(EXIT_SUCCESS);
+ exim_underbar_exit(EXIT_SUCCESS);
}
if (message_id[0] == 0) continue; /* No message was accepted */
}
{
if (smtp_out)
{
- int i, fd = fileno(smtp_in);
+ int fd = fileno(smtp_in);
uschar buf[128];
mac_smtp_fflush();
/* drain socket, for clean TCP FINs */
if (fcntl(fd, F_SETFL, O_NONBLOCK) == 0)
- for(i = 16; read(fd, buf, sizeof(buf)) > 0 && i > 0; ) i--;
+ for(int i = 16; read(fd, buf, sizeof(buf)) > 0 && i > 0; ) i--;
}
cancel_cutthrough_connection(TRUE, US"message setup dropped");
search_tidyup();
/*XXX should we pause briefly, hoping that the client will be the
active TCP closer hence get the TCP_WAIT endpoint? */
DEBUG(D_receive) debug_printf("SMTP>>(close on process exit)\n");
- _exit(rc ? EXIT_FAILURE : EXIT_SUCCESS);
+ exim_underbar_exit(rc ? EXIT_FAILURE : EXIT_SUCCESS);
}
/* Show the recipients when debugging */
DEBUG(D_receive)
{
- int i;
if (sender_address)
debug_printf("Sender: %s\n", sender_address);
if (recipients_list)
{
debug_printf("Recipients:\n");
- for (i = 0; i < recipients_count; i++)
+ for (int i = 0; i < recipients_count; i++)
debug_printf(" %s\n", recipients_list[i].address);
}
}
int r = receive_messagecount;
BOOL q = f.queue_only_policy;
smtp_reset(reset_point);
+ reset_point = NULL;
f.queue_only_policy = q;
receive_messagecount = r;
}
/* Don't ever molest the parent's SSL connection, but do clean up
the data structures if necessary. */
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
tls_close(NULL, TLS_NO_SHUTDOWN);
#endif
(void) deliver_message(message_id, FALSE, FALSE);
search_tidyup();
- _exit(EXIT_SUCCESS);
+ exim_underbar_exit(EXIT_SUCCESS);
}
if (dpid > 0)
never_error(US"daemon: accept process fork failed", US"Fork failed", errno);
else
{
- int i;
- for (i = 0; i < smtp_accept_max; ++i)
+ for (int i = 0; i < smtp_accept_max; ++i)
if (smtp_slots[i].pid <= 0)
{
smtp_slots[i].pid = pid;
- if (smtp_accept_max_per_host != NULL)
+ /* Connection closes come asyncronously, so we cannot stack this store */
+ if (smtp_accept_max_per_host)
smtp_slots[i].host_address = string_copy_malloc(sender_host_address);
smtp_accept_count++;
break;
}
DEBUG(D_any) debug_printf("%d SMTP accept process%s running\n",
- smtp_accept_count, (smtp_accept_count == 1)? "" : "es");
+ smtp_accept_count, smtp_accept_count == 1 ? "" : "es");
}
/* Get here via goto in error cases */
while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
{
- int i;
DEBUG(D_any)
{
debug_printf("child %d ended: status=0x%x\n", (int)pid, status);
if (smtp_slots)
{
+ int i;
for (i = 0; i < smtp_accept_max; i++)
if (smtp_slots[i].pid == pid)
{
if (queue_pid_slots)
{
int max = atoi(CS expand_string(queue_run_max));
- for (i = 0; i < max; i++)
+ for (int i = 0; i < max; i++)
if (queue_pid_slots[i] == pid)
{
queue_pid_slots[i] = 0;
if (f.inetd_wait_mode)
{
listen_socket_count = 1;
- listen_sockets = store_get(sizeof(int));
+ listen_sockets = store_get(sizeof(int), FALSE);
(void) close(3);
if (dup2(0, 3) == -1)
log_write(0, LOG_MAIN|LOG_PANIC_DIE,
sep = 0;
while ((s = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
pct++;
- default_smtp_port = store_get((pct+1) * sizeof(int));
+ default_smtp_port = store_get((pct+1) * sizeof(int), FALSE);
list = daemon_smtp_port;
sep = 0;
for (pct = 0;
for (ipa = addresses; ipa; ipa = ipa->next)
{
- int i;
-
if (Ustrcmp(ipa->address, "0.0.0.0") == 0)
ipa->address[0] = 0;
else if (Ustrcmp(ipa->address, "::0") == 0)
ipa->address[1] == 0 ? US"\"all IPv6\"" : ipa->address);
ipa->port = default_smtp_port[0];
- for (i = 1; default_smtp_port[i] > 0; i++)
+ for (int i = 1; default_smtp_port[i] > 0; i++)
{
- ip_address_item *new = store_get(sizeof(ip_address_item));
+ ip_address_item *new = store_get(sizeof(ip_address_item), FALSE);
memcpy(new->address, ipa->address, Ustrlen(ipa->address) + 1);
new->port = default_smtp_port[i];
for (ipa = addresses; ipa; ipa = ipa->next)
listen_socket_count++;
- listen_sockets = store_get(sizeof(int) * listen_socket_count);
+ listen_sockets = store_get(sizeof(int) * listen_socket_count, FALSE);
} /* daemon_listen but not inetd_wait_mode */
if (smtp_accept_max > 0)
{
- int i;
- smtp_slots = store_get(smtp_accept_max * sizeof(smtp_slot));
- for (i = 0; i < smtp_accept_max; i++) smtp_slots[i] = empty_smtp_slot;
+ smtp_slots = store_get(smtp_accept_max * sizeof(smtp_slot), FALSE);
+ for (int i = 0; i < smtp_accept_max; i++) smtp_slots[i] = empty_smtp_slot;
}
}
else
debug_printf("listening on %s port %d\n", ipa->address, ipa->port);
-#ifdef TCP_FASTOPEN
- if (setsockopt(listen_sockets[sk], IPPROTO_TCP, TCP_FASTOPEN,
+#if defined(TCP_FASTOPEN) && !defined(__APPLE__)
+ if ( f.tcp_fastopen_ok
+ && setsockopt(listen_sockets[sk], IPPROTO_TCP, TCP_FASTOPEN,
&smtp_connect_backlog, sizeof(smtp_connect_backlog)))
{
DEBUG(D_any) debug_printf("setsockopt FASTOPEN: %s\n", strerror(errno));
/* Start listening on the bound socket, establishing the maximum backlog of
connections that is allowed. On success, continue to the next address. */
- if (listen(listen_sockets[sk], smtp_connect_backlog) >= 0) continue;
+ if (listen(listen_sockets[sk], smtp_connect_backlog) >= 0)
+ {
+#if defined(TCP_FASTOPEN) && defined(__APPLE__)
+ if ( f.tcp_fastopen_ok
+ && setsockopt(listen_sockets[sk], IPPROTO_TCP, TCP_FASTOPEN,
+ &on, sizeof(on)))
+ {
+ DEBUG(D_any) debug_printf("setsockopt FASTOPEN: %s\n", strerror(errno));
+ f.tcp_fastopen_ok = FALSE;
+ }
+#endif
+ continue;
+ }
/* Listening has failed. In an IPv6 environment, as for bind(), if listen()
fails with the error EADDRINUSE and we are doing IPv4 wildcard listening
originator_uid = exim_uid;
originator_gid = exim_gid;
-originator_login = ((pw = getpwuid(exim_uid)) != NULL)?
- string_copy_malloc(US pw->pw_name) : US"exim";
+originator_login = (pw = getpwuid(exim_uid))
+ ? string_copy_perm(US pw->pw_name, FALSE) : US"exim";
/* Get somewhere to keep the list of queue-runner pids if we are keeping track
of them (and also if we are doing queue runs). */
if (queue_interval > 0 && local_queue_run_max > 0)
{
- int i;
- queue_pid_slots = store_get(local_queue_run_max * sizeof(pid_t));
- for (i = 0; i < local_queue_run_max; i++) queue_pid_slots[i] = 0;
+ queue_pid_slots = store_get(local_queue_run_max * sizeof(pid_t), FALSE);
+ for (int i = 0; i < local_queue_run_max; i++) queue_pid_slots[i] = 0;
}
/* Set up the handler for termination of child processes. */
else if (f.daemon_listen)
{
- int i, j;
int smtp_ports = 0;
int smtps_ports = 0;
- ip_address_item * ipa, * i2;
- uschar * p = big_buffer;
+ ip_address_item * ipa;
+ uschar * p;
uschar * qinfo = queue_interval > 0
? string_sprintf("-q%s", readconf_printtime(queue_interval))
: US"no queue runs";
deprecated protocol that starts TLS without using STARTTLS), and others
listening for standard SMTP. Keep their listings separate. */
- for (j = 0; j < 2; j++)
+ for (int j = 0, i; j < 2; j++)
{
for (i = 0, ipa = addresses; i < 10 && ipa; i++, ipa = ipa->next)
{
/* First time round, look for SMTP ports; second time round, look for
- SMTPS ports. For the first one of each, insert leading text. */
+ SMTPS ports. Build IP+port strings. */
if (host_is_tls_on_connect_port(ipa->port) == (j > 0))
{
if (j == 0)
- {
- if (smtp_ports++ == 0)
- {
- memcpy(p, "SMTP on", 8);
- p += 7;
- }
- }
+ smtp_ports++;
else
- if (smtps_ports++ == 0)
- p += sprintf(CS p, "%sSMTPS on",
- smtp_ports == 0 ? "" : " and for ");
+ smtps_ports++;
/* Now the information about the port (and sometimes interface) */
if (ipa->next && ipa->next->address[0] == 0 &&
ipa->next->port == ipa->port)
{
- p += sprintf(CS p, " port %d (IPv6 and IPv4)", ipa->port);
- ipa = ipa->next;
+ ipa->log = string_sprintf(" port %d (IPv6 and IPv4)", ipa->port);
+ (ipa = ipa->next)->log = NULL;
}
else if (ipa->v6_include_v4)
- p += sprintf(CS p, " port %d (IPv6 with IPv4)", ipa->port);
+ ipa->log = string_sprintf(" port %d (IPv6 with IPv4)", ipa->port);
else
- p += sprintf(CS p, " port %d (IPv6)", ipa->port);
+ ipa->log = string_sprintf(" port %d (IPv6)", ipa->port);
}
else if (ipa->address[0] == 0) /* v4 wildcard */
- p += sprintf(CS p, " port %d (IPv4)", ipa->port);
+ ipa->log = string_sprintf(" port %d (IPv4)", ipa->port);
else /* check for previously-seen IP */
{
+ ip_address_item * i2;
for (i2 = addresses; i2 != ipa; i2 = i2->next)
if ( host_is_tls_on_connect_port(i2->port) == (j > 0)
&& Ustrcmp(ipa->address, i2->address) == 0
)
{ /* found; append port to list */
- if (p[-1] == '}') p--;
- while (isdigit(*--p)) ;
- p += 1 + sprintf(CS p+1, "%s%d,%d}", *p == ',' ? "" : "{",
- i2->port, ipa->port);
+ for (p = i2->log; *p; ) p++; /* end of existing string */
+ if (*--p == '}') *p = '\0'; /* drop EOL */
+ while (isdigit(*--p)) ; /* char before port */
+
+ i2->log = *p == ':' /* no list yet? */
+ ? string_sprintf("%.*s{%s,%d}",
+ (int)(p - i2->log + 1), i2->log, p+1, ipa->port)
+ : string_sprintf("%s,%d}", i2->log, ipa->port);
+ ipa->log = NULL;
break;
}
if (i2 == ipa) /* first-time IP */
- p += sprintf(CS p, " [%s]:%d", ipa->address, ipa->port);
+ ipa->log = string_sprintf(" [%s]:%d", ipa->address, ipa->port);
}
}
}
+ }
- if (ipa)
+ p = big_buffer;
+ for (int j = 0, i; j < 2; j++)
+ {
+ /* First time round, look for SMTP ports; second time round, look for
+ SMTPS ports. For the first one of each, insert leading text. */
+
+ if (j == 0)
{
- memcpy(p, " ...", 5);
- p += 4;
+ if (smtp_ports > 0)
+ p += sprintf(CS p, "SMTP on");
}
+ else
+ if (smtps_ports > 0)
+ p += sprintf(CS p, "%sSMTPS on",
+ smtp_ports == 0 ? "" : " and for ");
+
+ /* Now the information about the port (and sometimes interface) */
+
+ for (i = 0, ipa = addresses; i < 10 && ipa; i++, ipa = ipa->next)
+ if (host_is_tls_on_connect_port(ipa->port) == (j > 0))
+ if (ipa->log)
+ p += sprintf(CS p, "%s", ipa->log);
+
+ if (ipa)
+ p += sprintf(CS p, " ...");
}
log_write(0, LOG_MAIN,
(eg: compile regex) */
dns_pattern_init();
+smtp_deliver_init(); /* Used for callouts */
+
+#ifndef DISABLE_DKIM
+ {
+# ifdef MEASURE_TIMING
+ struct timeval t0;
+ gettimeofday(&t0, NULL);
+# endif
+ dkim_exim_init();
+# ifdef MEASURE_TIMING
+ report_time_since(&t0, US"dkim_exim_init (delta)");
+# endif
+ }
+#endif
#ifdef WITH_CONTENT_SCAN
malware_init();
#endif
+#ifdef SUPPORT_SPF
+spf_init();
+#endif
/* Close the log so it can be renamed and moved. In the few cases below where
this long-running process writes to the log (always exceptional conditions), it
smtp_input = TRUE;
+#ifdef MEASURE_TIMING
+report_time_since(×tamp_startup, US"daemon loop start"); /* testcase 0022 */
+#endif
+
/* Enter the never-ending loop... */
for (;;)
}
sigalrm_seen = FALSE;
- alarm(resignal_interval);
+ ALARM(resignal_interval);
}
else
{
if ((pid = fork()) == 0)
{
- int sk;
-
DEBUG(D_any) debug_printf("Starting queue-runner: pid %d\n",
(int)getpid());
/* Close any open listening sockets in the child */
- for (sk = 0; sk < listen_socket_count; sk++)
+ for (int sk = 0; sk < listen_socket_count; sk++)
(void)close(listen_sockets[sk]);
/* Reset SIGHUP and SIGCHLD in the child in both cases. */
/* No need to re-exec; SIGALRM remains set to the default handler */
queue_run(NULL, NULL, FALSE);
- _exit(EXIT_SUCCESS);
+ exim_underbar_exit(EXIT_SUCCESS);
}
if (pid < 0)
}
else
{
- int i;
- for (i = 0; i < local_queue_run_max; ++i)
+ for (int i = 0; i < local_queue_run_max; ++i)
if (queue_pid_slots[i] <= 0)
{
queue_pid_slots[i] = pid;
break;
}
DEBUG(D_any) debug_printf("%d queue-runner process%s running\n",
- queue_run_count, (queue_run_count == 1)? "" : "es");
+ queue_run_count, queue_run_count == 1 ? "" : "es");
}
}
/* Reset the alarm clock */
sigalrm_seen = FALSE;
- alarm(queue_interval);
+ ALARM(queue_interval);
}
} /* sigalrm_seen */
if (f.daemon_listen)
{
- int sk, lcount, select_errno;
+ int lcount, select_errno;
int max_socket = 0;
BOOL select_failed = FALSE;
fd_set select_listen;
FD_ZERO(&select_listen);
- for (sk = 0; sk < listen_socket_count; sk++)
+ for (int sk = 0; sk < listen_socket_count; sk++)
{
FD_SET(listen_sockets[sk], &select_listen);
if (listen_sockets[sk] > max_socket) max_socket = listen_sockets[sk];
handle_ending_processes();
errno = select_errno;
+#ifndef DISABLE_TLS
+ /* Create or rotate any required keys */
+ tls_daemon_init();
+#endif
+
/* 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. */
int accept_socket = -1;
if (!select_failed)
- for (sk = 0; sk < listen_socket_count; sk++)
+ for (int sk = 0; sk < listen_socket_count; sk++)
if (FD_ISSET(listen_sockets[sk], &select_listen))
{
len = sizeof(accepted);
if (sighup_seen)
{
- int sk;
log_write(0, LOG_MAIN, "pid %d: SIGHUP received: re-exec daemon",
getpid());
- for (sk = 0; sk < listen_socket_count; sk++)
+ for (int sk = 0; sk < listen_socket_count; sk++)
(void)close(listen_sockets[sk]);
- alarm(0);
+ ALARM_CLR(0);
signal(SIGHUP, SIG_IGN);
sighup_argv[0] = exim_path;
exim_nullstd();
git://git.exim.org / exim.git / blobdiff