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net: remove unnecessary bit masking
R=dave CC=golang-dev https://golang.org/cl/11537044
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@ -266,7 +266,7 @@ func (m *icmpMessage) Marshal() ([]byte, error) {
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s = s + s>>16
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// Place checksum back in header; using ^= avoids the
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// assumption the checksum bytes are zero.
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b[2] ^= byte(^s & 0xff)
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b[2] ^= byte(^s)
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b[3] ^= byte(^s >> 8)
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return b, nil
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}
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@ -309,8 +309,8 @@ func (p *icmpEcho) Len() int {
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// reply message body p.
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func (p *icmpEcho) Marshal() ([]byte, error) {
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b := make([]byte, 4+len(p.Data))
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b[0], b[1] = byte(p.ID>>8), byte(p.ID&0xff)
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b[2], b[3] = byte(p.Seq>>8), byte(p.Seq&0xff)
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b[0], b[1] = byte(p.ID>>8), byte(p.ID)
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b[2], b[3] = byte(p.Seq>>8), byte(p.Seq)
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copy(b[4:], p.Data)
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return b, nil
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}
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