2004-11-23 Andrew J. Schorr <ajschorr@alumni.princeton.edu>

	* sigevent.c: (signal_init) Set up some default signal handlers
	  so that processes will issue an error message before terminating
	  or dumping core.
	  (trap_default_signals) New function to set up signal handlers
	  for various signals that may kill the process.
	  (exit_handler) Call zlog_signal, then _exit.
	  (core_handler) Call zlog_signal, then abort.
	* log.h: Declare new function zlog_signal.
	* log.c: (zlog_signal) New function to log information about
	  a received signal before the process dies.  Try to log a
	  backtrace also.
	  (quagga_signal_handler,signal_set) Should be static.

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/log.h b/lib/log.h
index e0437603..1fd4fe0c 100644
--- a/lib/log.h
+++ b/lib/log.h
@@ -122,4 +122,7 @@ extern const char *zlog_priority[];
 /* Safe version of strerror -- never returns NULL. */
 extern const char *safe_strerror(int errnum);
 
+/* To be called when a fatal signal is caught. */
+extern void zlog_signal(int signo, const char *action);
+
 #endif /* _ZEBRA_LOG_H */