86 lines
2.0 KiB
Go
86 lines
2.0 KiB
Go
// Copyright 2021, Henrik Sölver henrik.solver@gmail.com
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// SPDX-License-Identifier: BSD-3-Clause
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package ipp
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import (
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"bytes"
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"encoding/binary"
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"fmt"
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"io"
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)
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// Boolean is the ipp attribute boolean
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type Boolean struct {
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name string
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value bool
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}
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// NewBoolean creates a nre boolean attribute
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func NewBoolean(name string, value bool) *Boolean {
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b := new(Boolean)
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b.name = name
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b.value = value
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return b
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}
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// Name gets tha name of the boolean attribute
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func (b Boolean) Name() string {
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return b.name
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}
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func (b Boolean) String() string {
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return b.name + ":" + fmt.Sprint(b.value)
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}
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func (b *Boolean) valueTag() tag {
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return booleanValueTag
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}
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func unmarshalSingleAttribute(byteStream io.Reader) (string, []byte) {
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var length uint16
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binary.Read(byteStream, binary.BigEndian, &length)
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attributeName := make([]byte, length)
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if length > 0 {
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binary.Read(byteStream, binary.BigEndian, attributeName)
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}
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binary.Read(byteStream, binary.BigEndian, &length)
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attributeValue := make([]byte, length)
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binary.Read(byteStream, binary.BigEndian, attributeValue)
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return string(attributeName), attributeValue
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}
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func (b *Boolean) unmarshal(byteStream io.Reader) {
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var length uint16
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binary.Read(byteStream, binary.BigEndian, &length)
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attributeName := make([]byte, length)
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if length > 0 {
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binary.Read(byteStream, binary.BigEndian, attributeName)
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}
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b.name = string(attributeName)
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binary.Read(byteStream, binary.BigEndian, &length)
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data := make([]byte, length)
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binary.Read(byteStream, binary.BigEndian, data)
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//name, data := unmarshalSingleAttribute(byteStream)
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if data[0] == 0 {
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b.value = false
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return
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}
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b.value = true
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}
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func (b *Boolean) marshal() []byte {
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l := 5 + len(b.name)
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ba := make([]byte, 0, l)
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buf := bytes.NewBuffer(ba)
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buf.WriteByte(byte(booleanValueTag))
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binary.Write(buf, binary.BigEndian, uint16(len(b.name)))
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buf.WriteString(b.name)
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binary.Write(buf, binary.BigEndian, uint16(1))
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if b.value {
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buf.WriteByte(byte(1))
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} else {
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buf.WriteByte(byte(0))
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}
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return buf.Bytes()
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} |