Commit b03397a

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openset

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Add: Validate IP Address

1 parent 7b38580 commit b03397aCopy full SHA for b03397a

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+62

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Lines changed: 15 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1 +1,15 @@`
`1`		`-package validate_ip_address`
	`1`	`+package problem_468`
	`2`	`+`
	`3`	`+import (`
	`4`	`+ "net"`
	`5`	`+ "regexp"`
	`6`	`+)`
	`7`	`+`
	`8`	`+func validIPAddress(IP string) string {`
	`9`	`+ if p4 := net.ParseIP(IP).To4(); len(p4) == net.IPv4len && p4.String() == IP {`
	`10`	`+ return "IPv4"`
	`11`	+ } else if regexp.MustCompile(`^([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4}$`).MatchString(IP) {
	`12`	`+ return "IPv6"`
	`13`	`+ }`
	`14`	`+ return "Neither"`
	`15`	`+}`

Lines changed: 47 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1 +1,47 @@`
`1`		`-package validate_ip_address`
	`1`	`+package problem_468`
	`2`	`+`
	`3`	`+import "testing"`
	`4`	`+`
	`5`	`+type caseType struct {`
	`6`	`+ input string`
	`7`	`+ expected string`
	`8`	`+}`
	`9`	`+`
	`10`	`+func TestValidIPAddress(t *testing.T) {`
	`11`	`+ tests := [...]caseType{`
	`12`	`+ {`
	`13`	`+ input: "172.16.254.1",`
	`14`	`+ expected: "IPv4",`
	`15`	`+ },`
	`16`	`+ {`
	`17`	`+ input: "172.16.254.01",`
	`18`	`+ expected: "Neither",`
	`19`	`+ },`
	`20`	`+ {`
	`21`	`+ input: "256.256.256.256",`
	`22`	`+ expected: "Neither",`
	`23`	`+ },`
	`24`	`+ {`
	`25`	`+ input: "2001:0db8:85a3:0000:0000:8a2e:0370:7334",`
	`26`	`+ expected: "IPv6",`
	`27`	`+ },`
	`28`	`+ {`
	`29`	`+ input: "2001:db8:85a3:0:0:8A2E:0370:7334",`
	`30`	`+ expected: "IPv6",`
	`31`	`+ },`
	`32`	`+ {`
	`33`	`+ input: "2001:0db8:85a3::8A2E:0370:7334",`
	`34`	`+ expected: "Neither",`
	`35`	`+ },`
	`36`	`+ {`
	`37`	`+ input: "02001:0db8:85a3:0000:0000:8a2e:0370:7334",`
	`38`	`+ expected: "Neither",`
	`39`	`+ },`
	`40`	`+ }`
	`41`	`+ for _, tc := range tests {`
	`42`	`+ output := validIPAddress(tc.input)`
	`43`	`+ if output != tc.expected {`
	`44`	`+ t.Fatalf("input: %v, output: %v, expected: %v", tc.input, output, tc.expected)`
	`45`	`+ }`
	`46`	`+ }`
	`47`	`+}`

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