42 lines
924 B
Go
42 lines
924 B
Go
package wire
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import (
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"io"
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"github.com/CityOfZion/neo-go/pkg/wire/command"
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"github.com/CityOfZion/neo-go/pkg/wire/util"
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)
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// Base is everything in the message except the payload
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type Base struct {
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Magic uint32
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CMD command.Type
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PayloadLength uint32
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Checksum uint32
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}
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// DecodeBase will decode an io.Reader into a Base object
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// Note, That there is no EncodeBase, As the header is implicitly inferred from the message on Encode To send
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func (h *Base) DecodeBase(r io.Reader) (io.Reader, error) {
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br := &util.BinReader{R: r}
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br.Read(&h.Magic)
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var cmd [12]byte
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br.Read(&cmd)
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h.CMD = command.Type(cmdByteArrayToString(cmd))
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br.Read(&h.PayloadLength)
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br.Read(&h.Checksum)
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return br.R, br.Err
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}
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func cmdByteArrayToString(cmd [command.Size]byte) string {
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buf := []byte{}
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for i := 0; i < command.Size; i++ {
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if cmd[i] != 0 {
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buf = append(buf, cmd[i])
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}
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}
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return string(buf)
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}
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