From f8ba50a957d4245db12ca70889acc08f7cbd68b5 Mon Sep 17 00:00:00 2001
From: octo <octo>
Date: Sun, 30 Apr 2006 16:18:49 +0000
Subject: [PATCH] Catch `SIGINT' and print summary after Ctrl-C has been
 pressed..

---
 ToDo         |  1 +
 configure.ac |  1 +
 src/oping.c  | 37 +++++++++++++++++++++++++++++++------
 3 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/ToDo b/ToDo
index a624cbf5..6ebf1066 100644
--- a/ToDo
+++ b/ToDo
@@ -1 +1,2 @@
 - Write manpage
+- Catch SIGINT in `oping'
diff --git a/configure.ac b/configure.ac
index 6f74c816..5e9fc727 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,6 +39,7 @@ AC_CHECK_HEADERS(sys/stat.h)
 AC_HEADER_TIME
 AC_CHECK_HEADERS(sys/socket.h)
 AC_CHECK_HEADERS(netdb.h)
+AC_CHECK_HEADERS(signal.h)
 
 # This sucks, but what can I do..?
 AC_CHECK_HEADERS(netinet/in_systm.h, [], [],
diff --git a/src/oping.c b/src/oping.c
index 457a09d2..0c799863 100644
--- a/src/oping.c
+++ b/src/oping.c
@@ -50,6 +50,10 @@
 # include <netdb.h> /* NI_MAXHOST */
 #endif
 
+#if HAVE_SIGNAL_H
+# include <signal.h>
+#endif
+
 #include <liboping.h>
 
 typedef struct ping_context
@@ -69,6 +73,12 @@ static double opt_interval   = 1.0;
 static int    opt_addrfamily = PING_DEF_AF;
 static int    opt_count      = -1;
 
+void sigint_handler (int signal)
+{
+	/* Exit the loop */
+	opt_count = 0;
+}
+
 ping_context_t *context_create (void)
 {
 	ping_context_t *ret;
@@ -233,6 +243,8 @@ int main (int argc, char **argv)
 	pingobj_t      *ping;
 	pingobj_iter_t *iter;
 
+	struct sigaction sigint_action;
+
 	struct timeval  tv_begin;
 	struct timeval  tv_end;
 	struct timespec ts_wait;
@@ -241,7 +253,6 @@ int main (int argc, char **argv)
 	int optind;
 	int i;
 
-
 	optind = read_options (argc, argv);
 
 	if (optind >= argc)
@@ -294,12 +305,17 @@ int main (int argc, char **argv)
 		ping_iterator_set_context (iter, (void *) context);
 	}
 
-	while (1)
+	memset (&sigint_action, '\0', sizeof (sigint_action));
+	sigint_action.sa_handler = sigint_handler;
+	if (sigaction (SIGINT, &sigint_action, NULL) < 0)
 	{
-		int status;
+		perror ("sigaction");
+		return (1);
+	}
 
-		if (opt_count > 0)
-			opt_count--;
+	while (opt_count != 0)
+	{
+		int status;
 
 		if (gettimeofday (&tv_begin, NULL) < 0)
 		{
@@ -321,7 +337,8 @@ int main (int argc, char **argv)
 		}
 		fflush (stdout);
 
-		if (opt_count == 0)
+		/* Don't sleep in the last iteration */
+		if (opt_count == 1)
 			break;
 
 		if (gettimeofday (&tv_end, NULL) < 0)
@@ -340,7 +357,15 @@ int main (int argc, char **argv)
 				perror ("nanosleep");
 				break;
 			}
+			else if (opt_count == 0)
+			{
+				/* sigint */
+				break;
+			}
 		}
+
+		if (opt_count > 0)
+			opt_count--;
 	} /* while (opt_count != 0) */
 
 	for (iter = ping_iterator_get (ping);
-- 
2.30.2