support OSC 1.0 TCP format if SLIP is not enabled

Bump github.com/urfave/cli/v3 from 3.6.1 to 3.6.2

.github/workflows/release-makeosc.yml

@@ -1,4 +1,4 @@
-name: "release go binaries for multiple os/arch"
+name: "release go binaries for makeosc"
 
 on:
   push:
@@ -36,7 +36,7 @@ jobs:
           - goarch: "386"
             goos: darwin
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: wangyoucao577/go-release-action@v1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release-receiveosc.yml

@@ -1,4 +1,4 @@
-name: "release go binaries for multiple os/arch"
+name: "release go binaries for receiveosc"
 
 on:
   push:
@@ -36,7 +36,7 @@ jobs:
           - goarch: "386"
             goos: darwin
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: wangyoucao577/go-release-action@v1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release-sendosc.yml

@@ -1,4 +1,4 @@
-name: "release go binaries for multiple os/arch"
+name: "release go binaries for sendosc"
 
 on:
   push:
@@ -36,7 +36,7 @@ jobs:
           - goarch: "386"
             goos: darwin
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: wangyoucao577/go-release-action@v1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}

cmd/makeosc/makeosc.go

@@ -147,9 +147,9 @@ func slipEncode(bytes []byte) []byte {
 
 	for _, byteToEncode := range bytes {
 		if byteToEncode == END {
-			encodedBytes = append(encodedBytes, ESC_END)
+			encodedBytes = append(encodedBytes, ESC, ESC_END)
 		} else if byteToEncode == ESC {
-			encodedBytes = append(encodedBytes, ESC_ESC)
+			encodedBytes = append(encodedBytes, ESC, ESC_ESC)
 		} else {
 			encodedBytes = append(encodedBytes, byteToEncode)
 		}

cmd/receiveosc/receiveosc.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"net"
 	"os"
@@ -14,10 +15,11 @@ func main() {
 	var Host string
 	var Port int32
 	var Protocol string
+	var Format string
 
 	cmd := &cli.Command{
-		Name:  "makeosc",
-		Usage: "make osc bytes",
+		Name:  "receiveosc",
+		Usage: "receive OSC messages via UDP or TCP",
 		Flags: []cli.Flag{
 			&cli.StringFlag{
 				Name:        "host",
@@ -43,13 +45,25 @@ func main() {
 					return nil
 				},
 			},
+			&cli.StringFlag{
+				Name:        "format",
+				Usage:       "format for messages to be output in ('json')",
+				Value:       "json",
+				Destination: &Format,
+				Validator: func(flag string) error {
+					if flag != "json" {
+						return fmt.Errorf("format must be 'json'")
+					}
+					return nil
+				},
+			},
 		},
 		Action: func(ctx context.Context, cmd *cli.Command) error {
 			netAddress := fmt.Sprintf("%s:%d", Host, Port)
 			if Protocol == "udp" {
-				listenUDP(netAddress)
+				listenUDP(netAddress, Format)
 			} else if Protocol == "tcp" {
-				listenTCP(netAddress)
+				listenTCP(netAddress, Format)
 			}
 			return nil
 		},
@@ -60,7 +74,7 @@ func main() {
 	}
 }
 
-func listenTCP(netAddress string) {
+func listenTCP(netAddress string, format string) {
 	socket, err := net.Listen("tcp4", netAddress)
 	if err != nil {
 		fmt.Println(err)
@@ -69,15 +83,13 @@ func listenTCP(netAddress string) {
 
 	defer socket.Close()
 
-	fmt.Printf("listening on %s (tcp w/ SLIP)\n", netAddress)
-
 	for {
 		conn, err := socket.Accept()
 		if err != nil {
 			fmt.Println(err)
 			continue
 		}
-		go handleConnection(conn)
+		go handleConnection(conn, format)
 	}
 }
 
@@ -127,18 +139,18 @@ func (s *SLIP) decode(bytes []byte) {
 
 }
 
-func handleMessages(slip SLIP) {
+func handleSLIP(slip SLIP, format string) {
 	for message := range slip.Messages {
-		fmt.Printf("%v\n", message)
+		handleMessage(message, format)
 	}
 }
 
-func handleConnection(conn net.Conn) {
+func handleConnection(conn net.Conn, format string) {
 	slip := SLIP{
 		pendingBytes: []byte{},
 		Messages:     make(chan osc.OSCMessage),
 	}
-	go handleMessages(slip)
+	go handleSLIP(slip, format)
 
 	defer conn.Close()
 	buffer := make([]byte, 1024)
@@ -154,7 +166,16 @@ func handleConnection(conn net.Conn) {
 	}
 }
 
-func listenUDP(netAddress string) {
+func handleMessage(message osc.OSCMessage, format string) {
+	if format == "json" {
+		jsonData, _ := json.Marshal(message)
+		fmt.Println(string(jsonData))
+	} else {
+		fmt.Printf("%v\n", message)
+	}
+}
+
+func listenUDP(netAddress string, format string) {
 
 	s, err := net.ResolveUDPAddr("udp4", netAddress)
 	if err != nil {
@@ -168,8 +189,6 @@ func listenUDP(netAddress string) {
 		return
 	}
 
-	fmt.Printf("listening on %s (udp)\n", netAddress)
-
 	defer connection.Close()
 	buffer := make([]byte, 1024)
 
@@ -185,6 +204,6 @@ func listenUDP(netAddress string) {
 		if err != nil {
 			panic(err)
 		}
-		fmt.Println(oscMessage)
+		handleMessage(oscMessage, format)
 	}
 }

cmd/sendosc/sendosc.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"context"
+	"encoding/binary"
 	"encoding/hex"
 	"fmt"
 	"net"
@@ -23,8 +24,8 @@ func main() {
 	var Slip bool
 
 	cmd := &cli.Command{
-		Name:  "makeosc",
-		Usage: "make osc bytes",
+		Name:  "sendosc",
+		Usage: "send OSC messages via UDP or TCP",
 		Flags: []cli.Flag{
 			&cli.StringFlag{
 				Name:        "host",
@@ -177,9 +178,9 @@ func slipEncode(bytes []byte) []byte {
 
 	for _, byteToEncode := range bytes {
 		if byteToEncode == END {
-			encodedBytes = append(encodedBytes, ESC_END)
+			encodedBytes = append(encodedBytes, ESC, ESC_END)
 		} else if byteToEncode == ESC {
-			encodedBytes = append(encodedBytes, ESC_ESC)
+			encodedBytes = append(encodedBytes, ESC, ESC_ESC)
 		} else {
 			encodedBytes = append(encodedBytes, byteToEncode)
 		}
@@ -211,6 +212,12 @@ func send(host string, port int32, address string, args []string, types []string
 
 	if slip {
 		oscMessageBuffer = slipEncode(oscMessageBuffer)
+	} else if protocol == "tcp" {
+		// OSC 1.0 prepends a 4 byte size header for non-SLIP TCP messages
+		size := uint32(len(oscMessageBuffer))
+		sizeBytes := make([]byte, 4)
+		binary.BigEndian.PutUint32(sizeBytes, size)
+		oscMessageBuffer = append(sizeBytes, oscMessageBuffer...)
 	}
 
 	netAddress := fmt.Sprintf("%s:%d", host, port)

go.mod

@@ -2,4 +2,4 @@ module github.com/jwetzell/osc-go
 
 go 1.25.1
 
-require github.com/urfave/cli/v3 v3.4.1
+require github.com/urfave/cli/v3 v3.6.2

go.sum

@@ -2,9 +2,9 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
-github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/urfave/cli/v3 v3.4.1 h1:1M9UOCy5bLmGnuu1yn3t3CB4rG79Rtoxuv1sPhnm6qM=
-github.com/urfave/cli/v3 v3.4.1/go.mod h1:FJSKtM/9AiiTOJL4fJ6TbMUkxBXn7GO9guZqoZtpYpo=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+github.com/urfave/cli/v3 v3.6.2 h1:lQuqiPrZ1cIz8hz+HcrG0TNZFxU70dPZ3Yl+pSrH9A8=
+github.com/urfave/cli/v3 v3.6.2/go.mod h1:ysVLtOEmg2tOy6PknnYVhDoouyC/6N42TMeoMzskhso=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

message.go

@@ -26,6 +26,10 @@ func (m *OSCMessage) ToBytes() []byte {
 }
 
 func MessageFromBytes(bytes []byte) (OSCMessage, error) {
+	if len(bytes) == 0 {
+		return OSCMessage{}, errors.New("cannot create OSC Message from empty byte array")
+	}
+
 	address, typeAndArgBytes := readOSCString(bytes)
 
 	if address[0] != 47 {

osc.go

@@ -174,17 +174,13 @@ func argsToBuffer(args []OSCArg) []byte {
 func readOSCString(bytes []byte) (string, []byte) {
 	//TODO(jwetzell): add error handling
 	oscString := ""
-	stringFinished := false
 	stringEndIndex := 0
-	remainingBytes := []byte{}
 
 	for index, byteIn := range bytes {
-		if !stringFinished {
-			if byteIn == 0 {
-				oscString = string(bytes[0:index])
-				stringEndIndex = index + 1
-				break
-			}
+		if byteIn == 0 {
+			oscString = string(bytes[0:index])
+			stringEndIndex = index + 1
+			break
 		}
 	}
 
@@ -194,7 +190,7 @@ func readOSCString(bytes []byte) (string, []byte) {
 		stringEndIndex = stringEndIndex + stringPadding
 	}
 
-	remainingBytes = bytes[stringEndIndex:]
+	remainingBytes := bytes[stringEndIndex:]
 
 	return oscString, remainingBytes
 }

types.go

@@ -5,18 +5,18 @@ type OSCPacket interface {
 }
 
 type OSCBundle struct {
-	Contents []OSCPacket
-	TimeTag  OSCTimeTag
+	Contents []OSCPacket `json:"contents"`
+	TimeTag  OSCTimeTag  `json:"timeTag"`
 }
 
 type OSCArg struct {
-	Value any
-	Type  string
+	Value any    `json:"value"`
+	Type  string `json:"type"`
 }
 
 type OSCMessage struct {
-	Address string
-	Args    []OSCArg
+	Address string   `json:"address"`
+	Args    []OSCArg `json:"args"`
 }
 
 type OSCColor struct {