Handle SIGINT as we do with SIGTERM

[exim.git] / src / src / daemon.c

diff --git a/src/src/daemon.c b/src/src/daemon.c
index 52e6dcab17462c1784bd814156f7dee9233be922..ed7d30a16a91cc078e9d0357f251075b2910625a 100644 (file)
--- a/src/src/daemon.c
+++ b/src/src/daemon.c
@@ -471,6 +471,7 @@ if (pid == 0)
   signal(SIGCHLD, SIG_IGN);
   #endif
   signal(SIGTERM, SIG_DFL);
+  signal(SIGINT, SIG_DFL);
 
   /* 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
@@ -697,6 +698,7 @@ if (pid == 0)
         signal(SIGHUP,  SIG_DFL);
         signal(SIGCHLD, SIG_DFL);
         signal(SIGTERM, SIG_DFL);
+        signal(SIGINT, SIG_DFL);
 
         if (geteuid() != root_uid && !deliver_drop_privilege)
           {
@@ -939,6 +941,9 @@ if (override_pid_file_path)
 
 if (!*pid_file_path)
   pid_file_path = string_sprintf("%s/exim-daemon.pid", spool_directory);
+
+if (pid_file_path[0] != '/')
+  log_write(0, LOG_PANIC_DIE, "pid file path %s must be absolute\n", pid_file_path);
 }
 
 
@@ -982,7 +987,7 @@ daemon_die(void)
 {
 int pid;
 
-DEBUG(D_any) debug_printf("SIGTERM seen\n");
+DEBUG(D_any) debug_printf("SIGTERM/SIGINT seen\n");
 #if !defined(DISABLE_TLS) && (defined(EXIM_HAVE_INOTIFY) || defined(EXIM_HAVE_KEVENT))
 tls_watch_invalidate();
 #endif
@@ -1058,7 +1063,7 @@ len = offsetof(struct sockaddr_un, sun_path) + 1
 DEBUG(D_any) debug_printf(" @%s\n", sa_un.sun_path+1);
 #else                  /* filesystem-visible and persistent; will neeed removal */
 len = offsetof(struct sockaddr_un, sun_path)
-  + snprintf(sa_un.sun_path, sizeof(sa_un.sun_path), "%s", 
+  + snprintf(sa_un.sun_path, sizeof(sa_un.sun_path), "%s",
              expand_string(notifier_socket));
 DEBUG(D_any) debug_printf(" %s\n", sa_un.sun_path);
 #endif
@@ -1888,6 +1893,7 @@ os_non_restarting_signal(SIGCHLD, main_sigchld_handler);
 
 sigterm_seen = FALSE;
 os_non_restarting_signal(SIGTERM, main_sigterm_handler);
+os_non_restarting_signal(SIGINT, main_sigterm_handler);
 
 /* If we are to run the queue periodically, pretend the alarm has just gone
 off. This will cause the first queue-runner to get kicked off straight away. */
@@ -2175,6 +2181,7 @@ for (;;)
           signal(SIGHUP,  SIG_DFL);
           signal(SIGCHLD, SIG_DFL);
           signal(SIGTERM, SIG_DFL);
+          signal(SIGINT, SIG_DFL);
 
           /* Re-exec if privilege has been given up, unless deliver_drop_
           privilege is set. Reset SIGALRM before exec(). */
@@ -2415,7 +2422,7 @@ for (;;)
           accept_retry_errno = errno;
           accept_retry_select_failed = select_failed;
           }
-        else if (  errno != accept_retry_errno 
+        else if (  errno != accept_retry_errno
                || select_failed != accept_retry_select_failed
                || accept_retry_count >= 50)
             {