47 lines
859 B
Go
47 lines
859 B
Go
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package sctp
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import (
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"crypto/rand"
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"fmt"
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)
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type paramStateCookie struct {
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paramHeader
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cookie []byte
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}
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func newRandomStateCookie() (*paramStateCookie, error) {
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randCookie := make([]byte, 32)
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_, err := rand.Read(randCookie)
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// crypto/rand.Read returns n == len(b) if and only if err == nil.
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if err != nil {
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return nil, err
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}
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s := ¶mStateCookie{
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cookie: randCookie,
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}
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return s, nil
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}
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func (s *paramStateCookie) marshal() ([]byte, error) {
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s.typ = stateCookie
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s.raw = s.cookie
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return s.paramHeader.marshal()
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}
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func (s *paramStateCookie) unmarshal(raw []byte) (param, error) {
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err := s.paramHeader.unmarshal(raw)
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if err != nil {
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return nil, err
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}
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s.cookie = s.raw
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return s, nil
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}
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// String makes paramStateCookie printable
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func (s *paramStateCookie) String() string {
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return fmt.Sprintf("%s: %s", s.paramHeader, s.cookie)
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}
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