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98 lines
1.9 KiB
Go
98 lines
1.9 KiB
Go
// Utilities for reading and writing of binary data
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package rwu
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import (
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"encoding/binary"
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"io"
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)
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func ReadBool(r io.Reader) (bool, error) {
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var c uint8
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err := binary.Read(r, binary.LittleEndian, &c)
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return c != 0, err
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}
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func ReadUint8(r io.Reader) (uint8, error) {
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var c uint8
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func ReadUint16(r io.Reader) (uint16, error) {
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var c uint16
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func ReadUint32(r io.Reader) (uint32, error) {
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var c uint32
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func ReadUint64(r io.Reader) (uint64, error) {
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var c uint64
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func ReadInt8(r io.Reader) (int8, error) {
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var c int8
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func ReadInt16(r io.Reader) (int16, error) {
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var c int16
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func ReadInt32(r io.Reader) (int32, error) {
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var c int32
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func ReadInt64(r io.Reader) (int64, error) {
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var c int64
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func ReadString(r io.Reader) (string, error) {
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c := make([]byte, 0)
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var err error
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for {
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var b byte
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err = binary.Read(r, binary.LittleEndian, &b)
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if b == byte(0x0) || err != nil {
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break
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}
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c = append(c, b)
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}
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return string(c), err
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}
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func ReadByte(r io.Reader) (byte, error) {
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var c byte
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func ReadBytes(r io.Reader, num int32) ([]byte, error) {
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c := make([]byte, num)
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err := binary.Read(r, binary.LittleEndian, &c)
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return c, err
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}
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func WriteBool(w io.Writer, b bool) error {
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var err error
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if b {
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_, err = w.Write([]byte{1})
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} else {
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_, err = w.Write([]byte{0})
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}
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return err
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}
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