2017-09-11 09:09:01 +00:00
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package converter
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import (
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"strconv"
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"strings"
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)
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func IPToUint64(ip string) uint64 {
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isV4 := true
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for i := 0; i < len(ip); i++ {
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switch ip[i] {
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case ':':
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isV4 = false
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break
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case '.':
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2017-09-11 10:04:48 +00:00
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isV4 = true
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2017-09-11 09:09:01 +00:00
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break
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}
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}
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if !isV4 {
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return ipv6ToUint64(ip)
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}
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2017-11-10 07:05:28 +00:00
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return IPV4ToUint64(ip)
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2017-09-11 09:09:01 +00:00
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}
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2017-11-10 07:05:28 +00:00
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func IPV4ToUint64(s string) uint64 {
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2017-09-11 09:09:01 +00:00
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bits := strings.Split(s, ".")
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b0, _ := strconv.Atoi(bits[0])
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b1, _ := strconv.Atoi(bits[1])
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b2, _ := strconv.Atoi(bits[2])
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b3, _ := strconv.Atoi(bits[3])
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var sum uint64
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// left shifting 24,16,8,0 and bitwise OR
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sum += uint64(b0) << 24
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sum += uint64(b1) << 16
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sum += uint64(b2) << 8
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sum += uint64(b3)
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return sum
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}
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func ipv6ToUint64(s string) uint64 {
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bits := strings.Split(s, ":")
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b0, _ := strconv.Atoi(bits[0])
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b1, _ := strconv.Atoi(bits[1])
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b2, _ := strconv.Atoi(bits[2])
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b3, _ := strconv.Atoi(bits[3])
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var sum uint64
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// left shifting 24,16,8,0 and bitwise OR
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sum += uint64(b0) << 24
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sum += uint64(b1) << 16
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sum += uint64(b2) << 8
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sum += uint64(b3)
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return sum
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}
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