diff options
Diffstat (limited to 'channels/chan_unistim.c')
| -rw-r--r-- | channels/chan_unistim.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/channels/chan_unistim.c b/channels/chan_unistim.c index 95a8ce869..27e8e0cb2 100644 --- a/channels/chan_unistim.c +++ b/channels/chan_unistim.c @@ -502,7 +502,7 @@ static struct unistimsession { static const unsigned char packet_rcv_discovery[] = { 0xff, 0xff, 0xff, 0xff, 0x02, 0x02, 0xff, 0xff, 0xff, 0xff, 0x9e, 0x03, 0x08 }; -static unsigned char packet_send_discovery_ack[] = +static const unsigned char packet_send_discovery_ack[] = { 0x00, 0x00, /*Initial Seq (2 bytes) */ 0x00, 0x00, 0x00, 0x01 }; static const unsigned char packet_recv_firm_version[] = @@ -733,8 +733,8 @@ static unsigned int get_tick_count(void) } /* Send data to a phone without retransmit nor buffering */ -static void send_raw_client(int size, unsigned char *data, struct sockaddr_in *addr_to, - const struct sockaddr_in *addr_ourip) +static void send_raw_client(int size, const unsigned char *data, struct sockaddr_in *addr_to, + const struct sockaddr_in *addr_ourip) { #ifdef HAVE_PKTINFO struct iovec msg_iov; @@ -743,7 +743,12 @@ static void send_raw_client(int size, unsigned char *data, struct sockaddr_in *a struct cmsghdr *ip_msg = (struct cmsghdr *) buffer; struct in_pktinfo *pki = (struct in_pktinfo *) CMSG_DATA(ip_msg); - msg_iov.iov_base = data; + /* cast this to a non-const pointer, since the sendmsg() API + * does not provide read-only and write-only flavors of the + * structures used for its arguments, but in this case we know + * the data will not be modified + */ + msg_iov.iov_base = (char *) data; msg_iov.iov_len = size; msg.msg_name = addr_to; /* optional address */ |