+ log(ERROR, "'%s' takes one argument and no parameters", keyword.c_str());
+ return false;
+ }
+ *value = atoi(config[i].arguments[0].c_str()); // TODO: verify int validity.
+ return true;
+ }
+ return false;
+}
+
+bool parse_port(const ConfigLine &line, Config *config)
+{
+ if (line.arguments.size() != 1) {
+ log(ERROR, "'port' takes exactly one argument");
+ return false;
+ }
+
+ int port = atoi(line.arguments[0].c_str());
+ if (port < 1 || port >= 65536) {
+ log(ERROR, "port %d is out of range (must be [1,65536>).", port);
+ return false;
+ }
+
+ AcceptorConfig acceptor;
+ acceptor.addr = create_any_address(port);
+
+ config->acceptors.push_back(acceptor);
+ return true;
+}
+
+bool parse_listen(const ConfigLine &line, Config *config)
+{
+ if (line.arguments.size() != 1) {
+ log(ERROR, "'listen' takes exactly one argument");
+ return false;
+ }
+
+ AcceptorConfig acceptor;
+ if (!parse_hostport(line.arguments[0], &acceptor.addr)) {
+ return false;
+ }
+ config->acceptors.push_back(acceptor);
+ return true;
+}
+
+bool parse_stream(const ConfigLine &line, Config *config)
+{
+ if (line.arguments.size() != 1) {
+ log(ERROR, "'stream' takes exactly one argument");
+ return false;
+ }
+
+ StreamConfig stream;
+ stream.url = line.arguments[0];
+
+ map<string, string>::const_iterator src_it = line.parameters.find("src");
+ if (src_it == line.parameters.end()) {
+ log(WARNING, "stream '%s' has no src= attribute, clients will not get any data.",
+ stream.url.c_str());
+ } else {
+ stream.src = src_it->second;
+ // TODO: Verify that the URL is parseable?
+ }
+
+ map<string, string>::const_iterator backlog_it = line.parameters.find("backlog_size");
+ if (backlog_it == line.parameters.end()) {
+ stream.backlog_size = DEFAULT_BACKLOG_SIZE;
+ } else {
+ stream.backlog_size = atoi(backlog_it->second.c_str());
+ }
+
+ map<string, string>::const_iterator prebuffer_it = line.parameters.find("force_prebuffer");
+ if (prebuffer_it == line.parameters.end()) {
+ stream.prebuffering_bytes = 0;
+ } else {
+ stream.prebuffering_bytes = atoi(prebuffer_it->second.c_str());
+ }
+
+ // Parse ouptut encoding.
+ map<string, string>::const_iterator encoding_parm_it = line.parameters.find("encoding");
+ if (encoding_parm_it == line.parameters.end() ||
+ encoding_parm_it->second == "raw") {
+ stream.encoding = StreamConfig::STREAM_ENCODING_RAW;
+ } else if (encoding_parm_it->second == "metacube") {
+ stream.encoding = StreamConfig::STREAM_ENCODING_METACUBE;
+ } else {
+ log(ERROR, "Parameter 'encoding' must be either 'raw' (default) or 'metacube'");
+ return false;
+ }
+
+ // Parse input encoding.
+ map<string, string>::const_iterator src_encoding_parm_it = line.parameters.find("src_encoding");
+ if (src_encoding_parm_it == line.parameters.end() ||
+ src_encoding_parm_it->second == "metacube") {
+ stream.src_encoding = StreamConfig::STREAM_ENCODING_METACUBE;
+ } else if (src_encoding_parm_it->second == "raw") {
+ stream.src_encoding = StreamConfig::STREAM_ENCODING_RAW;
+ } else {
+ log(ERROR, "Parameter 'src_encoding' must be either 'raw' or 'metacube' (default)");
+ return false;
+ }
+
+ // Parse the pacing rate, converting from kilobits to bytes as needed.
+ map<string, string>::const_iterator pacing_rate_it = line.parameters.find("pacing_rate_kbit");
+ if (pacing_rate_it == line.parameters.end()) {
+ stream.pacing_rate = ~0U;
+ } else {
+ stream.pacing_rate = atoi(pacing_rate_it->second.c_str()) * 1024 / 8;
+ }
+
+ config->streams.push_back(stream);
+ return true;
+}
+
+bool parse_udpstream(const ConfigLine &line, Config *config)
+{
+ if (line.arguments.size() != 1) {
+ log(ERROR, "'udpstream' takes exactly one argument");
+ return false;
+ }
+
+ UDPStreamConfig udpstream;
+
+ string hostport = line.arguments[0];
+ if (!parse_hostport(hostport, &udpstream.dst)) {
+ return false;
+ }
+
+ map<string, string>::const_iterator src_it = line.parameters.find("src");
+ if (src_it == line.parameters.end()) {
+ // This is pretty meaningless, but OK, consistency is good.
+ log(WARNING, "udpstream to %s has no src= attribute, clients will not get any data.",
+ hostport.c_str());
+ } else {
+ udpstream.src = src_it->second;
+ // TODO: Verify that the URL is parseable?
+ }
+
+ // Parse the pacing rate, converting from kilobits to bytes as needed.
+ map<string, string>::const_iterator pacing_rate_it = line.parameters.find("pacing_rate_kbit");
+ if (pacing_rate_it == line.parameters.end()) {
+ udpstream.pacing_rate = ~0U;
+ } else {
+ udpstream.pacing_rate = atoi(pacing_rate_it->second.c_str()) * 1024 / 8;
+ }
+
+ // Parse the TTL. The same value is used for unicast and multicast.
+ map<string, string>::const_iterator ttl_it = line.parameters.find("ttl");
+ if (ttl_it == line.parameters.end()) {
+ udpstream.ttl = -1;
+ } else {
+ udpstream.ttl = atoi(ttl_it->second.c_str());
+ }
+
+ // Parse the multicast interface index.
+ map<string, string>::const_iterator multicast_iface_it = line.parameters.find("multicast_output_interface");
+ if (multicast_iface_it == line.parameters.end()) {
+ udpstream.multicast_iface_index = -1;
+ } else {
+ udpstream.multicast_iface_index = if_nametoindex(multicast_iface_it->second.c_str());
+ if (udpstream.multicast_iface_index == 0) {
+ log(ERROR, "Interface '%s' does not exist", multicast_iface_it->second.c_str());
+ return false;