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21 lines
283 B
Go
21 lines
283 B
Go
package head
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import (
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"unsafe"
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)
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const (
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ttloffset = unsafe.Offsetof(Packet{}.TTL)
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)
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// ClearTTL for hash use
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func ClearTTL(data []byte) {
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data[ttloffset] = 0
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}
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// DecTTL on transferring
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func DecTTL(data []byte) (drop bool) {
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data[ttloffset]--
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return data[ttloffset] == 0
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}
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