From: Ivo Timmermans <ivo@lychnis.net>
Date: Wed, 5 Sep 2001 18:38:09 +0000 (+0000)
Subject: Killing tincd with SIGINT causes it to toggle between the current
X-Git-Tag: release-1.0pre5~72
X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=commitdiff_plain;h=950c934e0bda28e5952d699d6008ee783d81982b

Killing tincd with SIGINT causes it to toggle between the current
debug level and level 5.  Useful to debug a running tincd.
---

diff --git a/src/process.c b/src/process.c
index 37b3186e..f395496f 100644
--- a/src/process.c
+++ b/src/process.c
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: process.c,v 1.1.2.24 2001/09/01 12:36:53 guus Exp $
+    $Id: process.c,v 1.1.2.25 2001/09/05 18:38:09 zarq Exp $
 */
 
 #include "config.h"
@@ -55,6 +55,8 @@ extern char **g_argv;
 
 sigset_t emptysigset;
 
+static int saved_debug_lvl = 0;
+
 void memory_full(int size)
 {
   syslog(LOG_ERR, _("Memory exhausted (couldn't allocate %d bytes), exiting."), size);
@@ -351,9 +353,20 @@ sighup_handler(int a, siginfo_t *info, void *b)
 RETSIGTYPE
 sigint_handler(int a, siginfo_t *info, void *b)
 {
-  if(debug_lvl > DEBUG_NOTHING)
-    syslog(LOG_NOTICE, _("Got INT signal, exiting"));
-  cleanup_and_exit(0);
+  if(saved_debug_lvl)
+    {
+      syslog(LOG_NOTICE, _("Reverting to old debug level (%d)"),
+	     saved_debug_lvl);
+      debug_lvl = saved_debug_lvl;
+      saved_debug_lvl = 0;
+    }
+  else
+    {
+      syslog(LOG_NOTICE, _("Temporarily setting debug level to 5.  Kill me with SIGINT again to go back to level %d."),
+	     debug_lvl);
+      saved_debug_lvl = debug_lvl;
+      debug_lvl = 5;
+    }
 }
 
 RETSIGTYPE