solves an overflow issue with elpased time. from

bug 7264


git-svn-id: http://svn.digium.com/svn/zaptel/trunk@1203 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 13 insertions, 3 deletions

diff --git a/fxotune.c b/fxotune.c
index 7e0d4eb..770c5d5 100644
--- a/fxotune.c
+++ b/fxotune.c
@@ -100,12 +100,22 @@ static int debug = 0;
 static int ensure_silence(struct silence_info *info)
 {
 	struct timeval tv;
-	long elapsedms;
+	long int elapsedms;
 	
 	gettimeofday(&tv, NULL);
-	elapsedms = ((tv.tv_sec - info->last_reset.tv_sec) * 1000L + (tv.tv_usec - info->last_reset.tv_usec));
+	
+	if (info->last_reset.tv_sec == 0) {
+		/* this is the first request, we will force it to run */
+		elapsedms = -1;
+	} else {
+		/* this is not the first request, we will compute elapsed time */
+		elapsedms = ((tv.tv_sec - info->last_reset.tv_sec) * 1000L + (tv.tv_usec - info->last_reset.tv_usec) / 1000L);
+	}
+	if (debug > 4) {
+		fprintf(stdout, "Reset line request received - elapsed ms = %li / reset after = %ld\n", elapsedms, info->reset_after * 1000L);
+	}
 
-	if (elapsedms < info->reset_after * 1000)
+	if (elapsedms > 0 && elapsedms < info->reset_after * 1000L)
 		return 0;
 	
 	if (debug > 1){