Factor out opts parsing, clean up shutdown.

adsbus/opts.c

@@ -0,0 +1,97 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "incoming.h"
+#include "outgoing.h"
+
+#include "receive.h"
+#include "send.h"
+
+#include "opts.h"
+
+static char *opts_split(char **arg, char delim) {
+	char *split = strchr(*arg, delim);
+	if (!split) {
+		return NULL;
+	}
+	char *ret = strndup(*arg, split - *arg);
+	*arg = split + 1;
+	return ret;
+}
+
+bool opts_add_dump(char *arg) {
+	struct serializer *serializer = send_get_serializer(arg);
+	if (!serializer) {
+		return false;
+	}
+	send_add(1, serializer);
+	return true;
+}
+
+bool opts_add_connect_receive(char *arg) {
+	char *host = opts_split(&arg, '/');
+	if (!host) {
+		return false;
+	}
+
+	outgoing_new(host, arg, receive_new, NULL);
+	free(host);
+	return true;
+}
+
+bool opts_add_connect_send(char *arg) {
+	char *format = opts_split(&arg, '=');
+	if (!format) {
+		return false;
+	}
+
+	struct serializer *serializer = send_get_serializer(format);
+	if (!serializer) {
+		free(format);
+		return false;
+	}
+
+	char *host = opts_split(&arg, '/');
+	if (!host) {
+		free(format);
+		return false;
+	}
+
+	incoming_new(host, arg, send_add_wrapper, serializer);
+	free(format);
+	free(host);
+	return true;
+}
+
+bool opts_add_listen_receive(char *arg) {
+	char *host = opts_split(&arg, '/');
+	if (host) {
+		incoming_new(host, arg, receive_new, NULL);
+		free(host);
+	} else {
+		incoming_new(NULL, arg, receive_new, NULL);
+	}
+	return true;
+}
+
+bool opts_add_listen_send(char *arg) {
+	char *format = opts_split(&arg, '=');
+	if (!format) {
+		return false;
+	}
+
+	struct serializer *serializer = send_get_serializer(format);
+	if (!serializer) {
+		free(format);
+		return false;
+	}
+
+	char *host = opts_split(&arg, '/');
+	if (host) {
+		incoming_new(host, arg, send_add_wrapper, serializer);
+		free(host);
+	} else {
+		incoming_new(NULL, arg, send_add_wrapper, serializer);
+	}
+	return true;
+}