Initial QSfera import

Server/vendor/github.com/segmentio/kafka-go/saslhandshake.go

@@ -0,0 +1,53 @@
+package kafka
+
+import (
+	"bufio"
+)
+
+// saslHandshakeRequestV0 implements the format for V0 and V1 SASL
+// requests (they are identical).
+type saslHandshakeRequestV0 struct {
+	// Mechanism holds the SASL Mechanism chosen by the client.
+	Mechanism string
+}
+
+func (t saslHandshakeRequestV0) size() int32 {
+	return sizeofString(t.Mechanism)
+}
+
+func (t *saslHandshakeRequestV0) readFrom(r *bufio.Reader, sz int) (remain int, err error) {
+	return readString(r, sz, &t.Mechanism)
+}
+
+func (t saslHandshakeRequestV0) writeTo(wb *writeBuffer) {
+	wb.writeString(t.Mechanism)
+}
+
+// saslHandshakeResponseV0 implements the format for V0 and V1 SASL
+// responses (they are identical).
+type saslHandshakeResponseV0 struct {
+	// ErrorCode holds response error code
+	ErrorCode int16
+
+	// Array of mechanisms enabled in the server
+	EnabledMechanisms []string
+}
+
+func (t saslHandshakeResponseV0) size() int32 {
+	return sizeofInt16(t.ErrorCode) + sizeofStringArray(t.EnabledMechanisms)
+}
+
+func (t saslHandshakeResponseV0) writeTo(wb *writeBuffer) {
+	wb.writeInt16(t.ErrorCode)
+	wb.writeStringArray(t.EnabledMechanisms)
+}
+
+func (t *saslHandshakeResponseV0) readFrom(r *bufio.Reader, sz int) (remain int, err error) {
+	if remain, err = readInt16(r, sz, &t.ErrorCode); err != nil {
+		return
+	}
+	if remain, err = readStringArray(r, remain, &t.EnabledMechanisms); err != nil {
+		return
+	}
+	return
+}