properly initialize the buffer used for holding generated tone samples... this should fix issue #11855 and solve problems with DTMF generation

git-svn-id: http://svn.digium.com/svn/zaptel/branches/1.4@3881 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 2 insertions, 0 deletions

diff --git a/tonezone.c b/tonezone.c
index 053cba4..7c7d70e 100644
--- a/tonezone.c
+++ b/tonezone.c
@@ -319,6 +319,8 @@ int tone_zone_register_zone(int fd, struct tone_zone *z)
 	int iopenedit = 1;
 	struct zt_tone_def_header *h;
 
+	memset(buf, 0, sizeof(buf));
+
 	h = ptr;
 	ptr += sizeof(*h);
 	space -= sizeof(*h);