32 lines
661 B
Go
32 lines
661 B
Go
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// Package connid contains code to generate the connectionID
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package connid
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import (
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"net"
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"strconv"
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"strings"
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)
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// Compute computes the connectionID from the local socket address. The zero
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// value is conventionally returned to mean "unknown".
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func Compute(network, address string) int64 {
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_, portstring, err := net.SplitHostPort(address)
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if err != nil {
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return 0
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}
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portnum, err := strconv.Atoi(portstring)
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if err != nil {
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return 0
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}
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if portnum < 0 || portnum > 65535 {
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return 0
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}
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result := int64(portnum)
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if strings.Contains(network, "udp") {
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result *= -1
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} else if !strings.Contains(network, "tcp") {
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result = 0
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}
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return result
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}
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