char *
getlocalip()
{
// if(localip[0]!=0)return localip;
const char *dest = opts.disc_host, *h;
int port = 1900;
struct sockaddr_in serv;
int sock = socket(AF_INET, SOCK_DGRAM, 0);
//Socket could not be created
if (sock < 0)
{
LOG("getlocalip: Cannot create socket: %s", strerror(errno));
return localip;
}
fill_sockaddr(&serv, (char *) dest, port);
int err = connect(sock, (const struct sockaddr *) &serv, sizeof(serv));
if (err)
{
LOG("getlocalip: Error '%s'' during connect", strerror(errno));
memset(localip, 0, sizeof(localip));
}
else
{
h = get_sock_shost(sock);
if (h)
strcpy(localip, h);
}
close(sock);
return localip;
}
int read_rtsp(sockets * s)
{
char *arg[50];
int cseq, la, i, rlen;
char *transport = NULL;
int sess_id = 0;
char buf[2000];
char tmp_ra[50];
streams *sid = get_sid(s->sid);
if (s->buf[0] == 0x24 && s->buf[1] < 2)
{
if (sid)
sid->rtime = s->rtime;
int rtsp_len = s->buf[2] * 256 + s->buf[3];
LOG(
"Received RTSP over tcp packet (sock_id %d, stream %d, rlen %d) packet len: %d, type %02X %02X discarding %s...",
s->id, s->sid, s->rlen, rtsp_len, s->buf[4], s->buf[5],
(s->rlen == rtsp_len + 4) ? "complete" : "fragment");
if (s->rlen == rtsp_len + 4)
{ // we did not receive the entire packet
s->rlen = 0;
return 0;
}
}
if (s->rlen < 4 || !end_of_header(s->buf + s->rlen - 4))
{
if (s->rlen > RBUF - 10)
{
LOG(
"Discarding %d bytes from the socket buffer, request > %d, consider increasing RBUF",
s->rlen, RBUF);
s->rlen = 0;
}
LOG(
"read_rtsp: read %d bytes from handle %d, sock_id %d, flags %d not ending with \\r\\n\\r\\n",
s->rlen, s->sock, s->id, s->flags);
if (s->flags & 1)
return 0;
unsigned char *new_alloc = malloc1(RBUF);
memcpy(new_alloc, s->buf, s->rlen);
s->buf = new_alloc;
s->flags = s->flags | 1;
return 0;
}
rlen = s->rlen;
s->rlen = 0;
LOG("read RTSP (from handle %d sock_id %d, len: %d, sid %d):\n%s", s->sock,
s->id, s->rlen, s->sid, s->buf);
if ((s->type != TYPE_HTTP)
&& (strncasecmp((const char*) s->buf, "GET", 3) == 0))
{
http_response(s, 404, NULL, NULL, 0, 0);
return 0;
}
la = split(arg, (char*) s->buf, 50, ' ');
cseq = 0;
if (la < 2)
LOG_AND_RETURN(0,
"Most likely not an RTSP packet sock_id: %d sid: %d rlen: %d, dropping ....",
s->id, s->sid, rlen);
if (s->sid < 0)
for (i = 0; i < la; i++)
if (strncasecmp("Session:", arg[i], 8) == 0)
{
sess_id = map_int(header_parameter(arg, i), NULL);
s->sid = find_session_id(sess_id);
}
/* if (s->sid < 0 && strstr(arg[1], "stream=")) // stream= in URL
{
char *str_id = strstr(arg[1], "stream=") + 7;
sess_id = map_intd(str_id, NULL, 0) - 1;
if ((sid = get_sid(sess_id)))
{
s->sid = sid->sid;
LOG("Adopting the session id from the stream %d", s->sid);
}
}
*/
if (strstr(arg[1], "freq") || strstr(arg[1], "pids"))
{
sid = (streams *) setup_stream(arg[1], s);
}
// if(!get_sid(s->sid) && ((strncasecmp (arg[0], "PLAY", 4) == 0) || (strncasecmp (arg[0], "GET", 3) == 0) || (strncasecmp (arg[0], "SETUP", 5) == 0)))
// sid = (streams *) setup_stream (arg[1], s); //setup empty stream
sid = get_sid(s->sid);
if (sid)
sid->rtime = s->rtime;
if (sess_id)
set_session_id(s->sid, sess_id);
for (i = 0; i < la; i++)
if (strncasecmp("CSeq:", arg[i], 5) == 0)
cseq = map_int(header_parameter(arg, i), NULL);
else if (strncasecmp("Transport:", arg[i], 9) == 0)
{
transport = header_parameter(arg, i);
if (-1 == decode_transport(s, transport, opts.rrtp, opts.start_rtp))
{
http_response(s, 400, NULL, NULL, cseq, 0);
return 0;
}
}
else if (strstr(arg[i], "LIVE555"))
{
if (sid)
sid->timeout = 0;
}
else if (strstr(arg[i], "Lavf"))
{
if (sid)
sid->timeout = 0;
}
if ((strncasecmp(arg[0], "PLAY", 4) == 0)
|| (strncasecmp(arg[0], "GET", 3) == 0)
|| (strncasecmp(arg[0], "SETUP", 5) == 0))
{
char ra[100];
int rv;
if (!(sid = get_sid(s->sid)))
{
http_response(s, 454, NULL, NULL, cseq, 0);
return 0;
}
if ((strncasecmp(arg[0], "PLAY", 3) == 0)
|| (strncasecmp(arg[0], "GET", 3) == 0))
if ((rv = start_play(sid, s)) < 0)
{
http_response(s, -rv, NULL, NULL, cseq, 0);
return 0;
}
get_socket_rhost(sid->sid, ra, sizeof(ra));
buf[0] = 0;
if (transport)
{
int s_timeout;
if (sid->timeout == 1)
sid->timeout = opts.timeout_sec;
s_timeout = (
(sid->timeout > 20000) ? sid->timeout : opts.timeout_sec)
/ 1000;
switch (sid->type)
{
case STREAM_RTSP_UDP:
if (atoi(ra) < 224)
snprintf(buf, sizeof(buf),
"Transport: RTP/AVP;unicast;destination=%s;source=%s;client_port=%d-%d;server_port=%d-%d\r\nSession: %010d;timeout=%d\r\ncom.ses.streamID: %d",
ra, get_sock_shost(s->sock),
get_stream_rport(sid->sid),
get_stream_rport(sid->sid) + 1,
// opts.start_rtp, opts.start_rtp + 1,
get_sock_sport(sid->rsock),
get_sock_sport(sid->rtcp), get_session_id(s->sid),
s_timeout, sid->sid + 1);
else
snprintf(buf, sizeof(buf),
"Transport: RTP/AVP;multicast;destination=%s;port=%d-%d\r\nSession: %010d;timeout=%d\r\ncom.ses.streamID: %d",
ra, get_stream_rport(sid->sid),
ntohs (sid->sa.sin_port) + 1,
get_session_id(s->sid), s_timeout, sid->sid + 1);
break;
case STREAM_RTSP_TCP:
snprintf(buf, sizeof(buf),
"Transport: RTP/AVP/TCP;interleaved=0-1\r\nSession: %010d;timeout=%d\r\ncom.ses.streamID: %d",
get_session_id(s->sid), s_timeout, sid->sid + 1);
break;
}
}
if (strncasecmp(arg[0], "PLAY", 4) == 0)
{
char *qm = strchr(arg[1], '?');
if (qm)
*qm = 0;
if (buf[0])
strcat(buf, "\r\n");
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1,
"RTP-Info: url=%s;seq=%d;rtptime=%lld\r\nRange: npt=0.000-",
arg[1], getTick(), (long long int) (getTickUs() / 1000000));
}
if (buf[0] == 0 && sid->type == STREAM_HTTP)
snprintf(buf, sizeof(buf), "Content-Type: video/mp2t");
http_response(s, 200, buf, NULL, cseq, 0);
}
else if (strncmp(arg[0], "TEARDOWN", 8) == 0)
{
buf[0] = 0;
if (get_sid(s->sid))
sprintf(buf, "Session: %010d", get_session_id(s->sid));
close_stream(s->sid);
http_response(s, 200, buf, NULL, cseq, 0);
}
else
{
if (strncmp(arg[0], "DESCRIBE", 8) == 0)
{
char sbuf[1000];
char *rv = NULL;
rv = describe_streams(s, arg[1], sbuf, sizeof(sbuf));
if (!rv)
{
http_response(s, 404, NULL, NULL, cseq, 0);
return 0;
}
snprintf(buf, sizeof(buf),
"Content-type: application/sdp\r\nContent-Base: rtsp://%s/",
get_sock_shost(s->sock));
http_response(s, 200, buf, sbuf, cseq, 0);
}
else if (strncmp(arg[0], "OPTIONS", 8) == 0)
{
http_response(s, 200, public, NULL, cseq, 0);
}
}
