[Asterisk-code-review] chan sip: Don't seen trailing \0 on keep alive packets (asterisk[15])

[Sean Bright]

Sean Bright has uploaded this change for review. ( https://gerrit.asterisk.org/7538


Change subject: chan_sip: Don't seen trailing \0 on keep alive packets
......................................................................

chan_sip: Don't seen trailing \0 on keep alive packets

This is a partial fix for ASTERISK~25817 but does not address the
comments regarding RFC 5626.

Change-Id: I227e2d10c0035bbfa1c6e46ae2318fd1122d8420
---
M channels/chan_sip.c
1 file changed, 5 insertions(+), 4 deletions(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/38/7538/1

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index a6e5493..c041827 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -30125,6 +30125,7 @@
 	struct sip_peer *peer = (struct sip_peer*) data;
 	int res = 0;
 	const char keepalive[] = "\r\n";
+	size_t count = sizeof(keepalive) - 1;
 
 	peer->keepalivesend = -1;
 
@@ -30135,12 +30136,12 @@
 
 	/* Send the packet out using the proper method for this peer */
 	if ((peer->socket.fd != -1) && (peer->socket.type == AST_TRANSPORT_UDP)) {
-		res = ast_sendto(peer->socket.fd, keepalive, sizeof(keepalive), 0, &peer->addr);
+		res = ast_sendto(peer->socket.fd, keepalive, count, 0, &peer->addr);
 	} else if ((peer->socket.type & (AST_TRANSPORT_TCP | AST_TRANSPORT_TLS)) &&
 		   peer->socket.tcptls_session) {
-		res = sip_tcptls_write(peer->socket.tcptls_session, keepalive, sizeof(keepalive));
+		res = sip_tcptls_write(peer->socket.tcptls_session, keepalive, count);
 	} else if (peer->socket.type == AST_TRANSPORT_UDP) {
-		res = ast_sendto(sipsock, keepalive, sizeof(keepalive), 0, &peer->addr);
+		res = ast_sendto(sipsock, keepalive, count, 0, &peer->addr);
 	}
 
 	if (res == -1) {
@@ -30154,7 +30155,7 @@
 		}
 	}
 
-	if (res != sizeof(keepalive)) {
+	if (res != count) {
 		ast_log(LOG_WARNING, "sip_send_keepalive to %s returned %d: %s\n", ast_sockaddr_stringify(&peer->addr), res, strerror(errno));
 	}
 

-- 
To view, visit https://gerrit.asterisk.org/7538
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Gerrit-Project: asterisk
Gerrit-Branch: 15
Gerrit-MessageType: newchange
Gerrit-Change-Id: I227e2d10c0035bbfa1c6e46ae2318fd1122d8420
Gerrit-Change-Number: 7538
Gerrit-PatchSet: 1
Gerrit-Owner: Sean Bright <sean.bright at gmail.com>
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