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35 lines
518 B
Go
35 lines
518 B
Go
package nip19
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import (
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"bytes"
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)
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const (
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TLVDefault uint8 = 0
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TLVRelay uint8 = 1
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TLVAuthor uint8 = 2
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TLVKind uint8 = 3
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)
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func readTLVEntry(data []byte) (typ uint8, value []byte) {
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if len(data) < 2 {
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return 0, nil
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}
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typ = data[0]
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length := int(data[1])
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if len(data) < 2+length {
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return typ, nil
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}
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value = data[2 : 2+length]
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return
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}
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func writeTLVEntry(buf *bytes.Buffer, typ uint8, value []byte) {
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length := len(value)
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buf.WriteByte(typ)
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buf.WriteByte(uint8(length))
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buf.Write(value)
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}
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