X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/f07babc0c0abfe8328da451f91f3ea46df3e63d9..d4c9963ace2b653f657c74abecfecb7546c722b1:/src/src/daemon.c

diff --git a/src/src/daemon.c b/src/src/daemon.c
index cb0d4af09..09cb1a7f1 100644
--- a/src/src/daemon.c
+++ b/src/src/daemon.c
@@ -3,6 +3,7 @@
 *************************************************/
 
 /* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Functions concerned with running Exim as a daemon */
@@ -58,7 +59,6 @@ Returns:  nothing
 static void
 sighup_handler(int sig)
 {
-sig = sig;    /* Keep picky compilers happy */
 sighup_seen = TRUE;
 signal(SIGHUP, sighup_handler);
 }
@@ -82,7 +82,6 @@ Returns:  nothing
 static void
 main_sigchld_handler(int sig)
 {
-sig = sig;    /* Keep picky compilers happy */
 os_non_restarting_signal(SIGCHLD, SIG_DFL);
 sigchld_seen = TRUE;
 }
@@ -277,10 +276,10 @@ to provide host-specific limits according to $sender_host address, but because
 this is in the daemon mainline, only fast expansions (such as inline address
 checks) should be used. The documentation is full of warnings. */
 
-if (smtp_accept_max_per_host != NULL)
+if (smtp_accept_max_per_host)
   {
   uschar *expanded = expand_string(smtp_accept_max_per_host);
-  if (expanded == NULL)
+  if (!expanded)
     {
     if (!f.expand_string_forcedfail)
       log_write(0, LOG_MAIN|LOG_PANIC, "expansion of smtp_accept_max_per_host "
@@ -292,7 +291,7 @@ if (smtp_accept_max_per_host != NULL)
     uschar *s = expanded;
     while (isdigit(*s))
       max_for_this_host = max_for_this_host * 10 + *s++ - '0';
-    if (*s != 0)
+    if (*s)
       log_write(0, LOG_MAIN|LOG_PANIC, "expansion of smtp_accept_max_per_host "
         "for %s contains non-digit: %s", whofrom->s, expanded);
     }
@@ -302,8 +301,7 @@ if (smtp_accept_max_per_host != NULL)
 per host_address checks. Note that at this stage smtp_accept_count contains the
 count of *other* connections, not including this one. */
 
-if ((max_for_this_host > 0) &&
-    (smtp_accept_count >= max_for_this_host))
+if (max_for_this_host > 0 && smtp_accept_count >= max_for_this_host)
   {
   int host_accept_count = 0;
   int other_host_count = 0;    /* keep a count of non matches to optimise */
@@ -320,8 +318,8 @@ if ((max_for_this_host > 0) &&
       early, either by hitting the target, or finding there are not enough
       connections left to make the target. */
 
-      if ((host_accept_count >= max_for_this_host) ||
-         ((smtp_accept_count - other_host_count) < max_for_this_host))
+      if (  host_accept_count >= max_for_this_host
+         || smtp_accept_count - other_host_count < max_for_this_host)
        break;
       }
 
@@ -335,6 +333,7 @@ if ((max_for_this_host > 0) &&
     log_write(L_connection_reject,
               LOG_MAIN, "Connection from %s refused: too many connections "
       "from that IP address", whofrom->s);
+    search_tidyup();
     goto ERROR_RETURN;
     }
   }
@@ -1137,14 +1136,14 @@ for (struct cmsghdr * cp = CMSG_FIRSTHDR(&msg);
 buf[sz] = 0;
 switch (buf[0])
   {
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
   case NOTIFY_MSG_QRUN:
     /* this should be a message_id */
     DEBUG(D_queue_run)
       debug_printf("%s: qrunner trigger: %s\n", __FUNCTION__, buf+1);
     memcpy(queuerun_msgid, buf+1, MESSAGE_ID_LENGTH+1);
     return TRUE;
-#endif	/*EXPERIMENTAL_QUEUE_RAMP*/
+#endif
 
   case NOTIFY_QUEUE_SIZE_REQ:
     {
@@ -2119,7 +2118,7 @@ for (;;)
     else
       {
       DEBUG(D_any) debug_printf("%s received\n",
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
 	*queuerun_msgid ? "qrun notification" :
 #endif
 	"SIGALRM");
@@ -2164,7 +2163,7 @@ for (;;)
             *p++ = '-';
             *p++ = 'q';
             if (  f.queue_2stage
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
 	       && !*queuerun_msgid
 #endif
 	       ) *p++ = 'q';
@@ -2176,7 +2175,7 @@ for (;;)
 	    extra[0] = *queue_name
 	      ? string_sprintf("%sG%s", opt, queue_name) : opt;
 
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
 	    if (*queuerun_msgid)
 	      {
 	      log_write(0, LOG_MAIN, "notify triggered queue run");
@@ -2211,7 +2210,7 @@ for (;;)
 
           /* No need to re-exec; SIGALRM remains set to the default handler */
 
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
 	  if (*queuerun_msgid)
 	    {
 	    log_write(0, LOG_MAIN, "notify triggered queue run");
@@ -2247,7 +2246,7 @@ for (;;)
       /* Reset the alarm clock */
 
       sigalrm_seen = FALSE;
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
       if (*queuerun_msgid)
 	*queuerun_msgid = 0;
       else