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