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29 lines
574 B
Go
29 lines
574 B
Go
package multiaddr
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import (
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"errors"
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"math"
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"github.com/multiformats/go-varint"
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)
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// CodeToVarint converts an integer to a varint-encoded []byte
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func CodeToVarint(num int) ([]byte, error) {
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if num < 0 || num > math.MaxInt32 {
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return nil, errors.New("invalid code")
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}
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return varint.ToUvarint(uint64(num)), nil
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}
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func ReadVarintCode(b []byte) (int, int, error) {
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code, n, err := varint.FromUvarint(b)
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if err != nil {
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return 0, 0, err
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}
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if code > math.MaxInt32 {
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// we only allow 32bit codes.
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return 0, 0, varint.ErrOverflow
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}
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return int(code), n, err
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}
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