chan_sip: Don't send 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
This commit is contained in:
Sean Bright
2017-12-12 16:28:54 -05:00
parent c2ec82bf36
commit 0c9cc7e975

View File

@@ -30286,6 +30286,7 @@ static int sip_send_keepalive(const void *data)
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;
@@ -30296,12 +30297,12 @@ static int sip_send_keepalive(const void *data)
/* 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) {
@@ -30315,7 +30316,7 @@ static int sip_send_keepalive(const void *data)
}
}
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));
}