Get to where we're actually finding airspy packet boundaries.

airspy_adsb.c

@@ -0,0 +1,20 @@
+#include <string.h>
+
+#include "common.h"
+#include "airspy_adsb.h"
+
+bool airspy_adsb_parse(struct buf *buf, struct packet *packet) {
+	if (buf->length < 35) {
+		// Minimum frame length
+		return false;
+	}
+	if (buf->buf[buf->start] != '*') {
+		return false;
+	}
+	char *last = memchr(&buf->buf[buf->start], '\n', buf->length);
+	if (!last) {
+		return false;
+	}
+	buf_consume(buf, last - &buf->buf[buf->start] + 1);
+	return true;
+}