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40 lines
672 B
Go
40 lines
672 B
Go
package geoip
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// CIDRList is an alias of []*CIDR to provide sort.Interface.
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type CIDRList []*CIDR
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// Len implements sort.Interface.
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func (l *CIDRList) Len() int {
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return len(*l)
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}
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// Less implements sort.Interface.
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func (l *CIDRList) Less(i int, j int) bool {
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ci := (*l)[i]
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cj := (*l)[j]
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if len(ci.Ip) < len(cj.Ip) {
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return true
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}
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if len(ci.Ip) > len(cj.Ip) {
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return false
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}
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for k := 0; k < len(ci.Ip); k++ {
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if ci.Ip[k] < cj.Ip[k] {
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return true
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}
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if ci.Ip[k] > cj.Ip[k] {
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return false
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}
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}
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return ci.Prefix < cj.Prefix
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}
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// Swap implements sort.Interface.
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func (l *CIDRList) Swap(i int, j int) {
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(*l)[i], (*l)[j] = (*l)[j], (*l)[i]
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}
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