Rename Soundbox to Client

Since the module name is `soundbox` naming the primary type of the
module also `Soundbox` is redundant. Following similar code from the Go
standard library this struct is renamed to `Client`.

1 files changed, 31 insertions, 0 deletions

diff --git a/client.go b/client.go
new file mode 100644
index 0000000..27e5d54
--- /dev/null
+++ b/client.go
@@ -0,0 +1,31 @@
+package soundbox
+
+import (
+	"fmt"
+	"net"
+)
+
+// Port is the default network port a soundbox is listening to for incoming
+// audio stream data.
+const Port = 5316
+
+type Client struct {
+	HardwareAddr net.HardwareAddr
+}
+
+func NewClient(mac string) (Client, error) {
+	hardwareAddr, err := net.ParseMAC(mac)
+	if err != nil {
+		return Client{}, err
+	}
+
+	return fromHardwareAddr(hardwareAddr)
+}
+
+func fromHardwareAddr(addr net.HardwareAddr) (Client, error) {
+	if len(addr) != 6 {
+		return Client{}, fmt.Errorf("Only IEEE 802 MAC-48 addresses supported")
+	}
+
+	return Client{HardwareAddr: addr}, nil
+}