v1.16.9
ADDED: * netx.IsPub * encodingx/hexx Rest are mostly small corrections and docs
This commit is contained in:
brent saner
@@ -0,0 +1,147 @@
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package main
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import (
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"log"
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"maps"
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"net/netip"
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`os`
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"slices"
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"github.com/olekukonko/tablewriter"
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`github.com/olekukonko/tablewriter/tw`
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)
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type (
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IpInfo struct {
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Desc string `r:"-"`
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IP netip.Addr `r:"-"`
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Is4 bool
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Is4In6 bool
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Is6 bool
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IsGlobalUnicast bool
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IsInterfaceLocalMulticast bool
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IsLinkLocalMulticast bool
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IsLinkLocalUnicast bool
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IsLoopback bool
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IsMulticast bool
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IsPrivate bool
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IsUnspecified bool
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IsValid bool
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}
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)
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func main() {
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var err error
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var s string
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var idx int
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var desc string
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var ip netip.Addr
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var rows []IpInfo
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/*
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var typ reflect.Type
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var val reflect.Value
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var fieldVal reflect.Value
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var field reflect.StructField
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*/
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var exampleAddrs map[string]string
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var tbl *tablewriter.Table = tablewriter.NewTable(
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os.Stdout,
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tablewriter.WithBehavior(
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tw.Behavior{
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Structs: tw.Struct{
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AutoHeader: tw.On,
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},
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},
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),
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tablewriter.WithRendition(
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tw.Rendition{
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Settings: tw.Settings{
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Separators: tw.Separators{BetweenRows: tw.On},
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},
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},
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),
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)
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defer func() {
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var tErr error
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if tbl != nil {
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if tErr = tbl.Close(); tErr != nil {
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log.Printf("Error closing table: %v", tErr)
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}
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}
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}()
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exampleAddrs = map[string]string{
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"IPv4": "203.0.113.10", // RFC 5737 address (https://datatracker.ietf.org/doc/html/rfc5737)
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"IPv4 Unspecified": "0.0.0.0",
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"IPv4 Global Unicast": "173.230.132.76", // r00t2.io
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"IPv4 Multicast (All) (RFC 1112 § 4)": "224.0.0.1", // Should encompass all the multicast below. 224.0.0.0 is reserved.
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"IPv4 Multicast (Reserved) (RFC 1112 § 4)": "224.0.0.0", // Reserved per RFC but it should still report multicast.
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"IPv4 Multicast (Link-Local Multicast/Local Network Control Block) (RFC 5771 § 4)": "224.0.0.18", // https://datatracker.ietf.org/doc/html/rfc5771#section-4 (VRRP multicast addr)
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"IPv4 Multicast (Internetwork Control Block) (RFC 5771 § 5)": "224.0.1.68", // https://datatracker.ietf.org/doc/html/rfc5771#section-5 (mdhcpdiscover, RFC 2730)
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"IPv4 Multicast (AD-HOC I) (RFC 5771 § 6)": "224.0.2.10", // https://datatracker.ietf.org/doc/html/rfc5771#section-6
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"IPv4 Multicast (SDP/SAP) (RFC 5771 § 7)": "224.2.0.10", // https://datatracker.ietf.org/doc/html/rfc5771#section-7
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"IPv4 Multicast (AD-HOC II) (RFC 5771 § 6)": "224.3.0.10", // (above)
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"IPv4 Multicast (Source-Specific) (RFC 5771 § 8)": "232.0.0.10", // https://datatracker.ietf.org/doc/html/rfc5771#section-8
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"IPv4 Multicast (GLOP) (RFC 5771 § 9)": "233.0.0.10", // https://datatracker.ietf.org/doc/html/rfc5771#section-9
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"IPv4 Multicast (AD-HOC III) (RFC 5771 § 6)": "233.252.0.10", // (above)
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"IPv4 Multicast (Administrative) (RFC 5771 § 10)": "239.0.0.10", // https://datatracker.ietf.org/doc/html/rfc5771#section-10
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"IPv4 Link-Local Unicast (RFC 3927 § 2.1)": "169.254.1.10", // https://datatracker.ietf.org/doc/html/rfc3927#section-2.1
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"IPv4 Loopback": "127.0.1.10", // It's actually 127/8. Cannot believe how many people do not know this.
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"IPv4 Private (RFC 1918)": "10.0.0.10", // https://datatracker.ietf.org/doc/html/rfc1918
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"4-in-6 (RFC 4291 § 2.5.5.1)": "::203.0.113.10", // https://datatracker.ietf.org/doc/html/rfc4291#section-2.5.5.1
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"4-in-6 (RFC 4291 § 2.5.5.1) (Native)": "::cb00:710a", // ""
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"4-in-6 (RFC 4291 § 2.5.5.2)": "::ffff:203.0.113.10", // https://datatracker.ietf.org/doc/html/rfc4291#section-2.5.5.2
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"4-in-6 (RFC 4291 § 2.5.5.2) (Native)": "::ffff:cb00:710a", // ""
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"IPv6": "2001:db8::cb00:710a", // RFC 3849 (https://datatracker.ietf.org/doc/html/rfc3849) / RFC 9637 (https://datatracker.ietf.org/doc/html/rfc9637) address
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"IPv6 Unspecified": "::",
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"IPv6 Global Unicast": "2600:3c02::f03c:91ff:fe93:c0a7", // r00t2.io
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"IPv6 Multicast (RFC 4291 § 2.7.1) (Reserved Net)": "ff00::", // https://datatracker.ietf.org/doc/html/rfc4291#section-2.7.1
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"IPv6 Multicast (RFC 4291 § 2.7.1) (Reserved)": "ff00::1", // ""
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"IPv6 Multicast (RFC 4291 § 2.7.1) (All Nodes) (Interface-Local)": "ff01::1", // ""
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"IPv6 Multicast (RFC 4291 § 2.7.1) (All Nodes) (Link-Local)": "ff02::1", // ""
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"IPv6 Multicast (RFC 4291 § 2.7.1) (All Routers) (Interface-Local)": "ff01::2", // ""
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"IPv6 Multicast (RFC 4291 § 2.7.1) (All Routers) (Link-Local)": "ff02::2", // ""
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"IPv6 Multicast (RFC 4291 § 2.7.1) (All Routers) (Admin-Local)": "ff04::2", // ""
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"IPv6 Multicast (RFC 4291 § 2.7.1) (All Routers) (Site-Local)": "ff05::2", // ""
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"IPv6 Multicast (RFC 4291 § 2.7.1) (All Routers) (Org-Local)": "ff08::2", // ""
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"IPv6 Multicast (RFC 4291 § 2.7.1) (All Routers) (Internet/Global)": "ff0e::2", // ""
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"IPv6 Multicast (RFC 4291 § 2.7.1) (Solicited Node)": "ff02::1:ff00:10", // ""
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"IPv6 Link-Local Unicast (RFC 4291 § 2.5.6)": "fe80::cb00:710a", // https://datatracker.ietf.org/doc/html/rfc4291#section-2.5.6
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"IPv6 Loopback": "::1", // It's explicitly always a /128 with the address ::1 per RFC 4291 § 2.5.3.
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"IPv6 Private (Unique-Local Addresses) (RFC 4193) (Reserved)": "fc00::10", // https://datatracker.ietf.org/doc/html/rfc4193
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"IPv6 Private (Unique-Local Addresses) (RFC 4193) (Valid)": "fd00::10", // ""
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}
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rows = make([]IpInfo, len(exampleAddrs))
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for idx, desc = range slices.Sorted(maps.Keys(exampleAddrs)) {
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s = exampleAddrs[desc]
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if ip, err = netip.ParseAddr(s); err != nil {
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log.Panicln(err)
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}
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// Currently no way to skip cols etc. https://github.com/olekukonko/tablewriter/issues/317
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rows[idx] = IpInfo{
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Desc: desc,
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IP: ip,
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Is4: ip.Is4(),
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Is4In6: ip.Is4In6(),
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Is6: ip.Is6(),
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IsGlobalUnicast: ip.IsGlobalUnicast(),
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IsInterfaceLocalMulticast: ip.IsInterfaceLocalMulticast(),
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IsLinkLocalMulticast: ip.IsLinkLocalMulticast(),
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IsLinkLocalUnicast: ip.IsLinkLocalUnicast(),
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IsLoopback: ip.IsLoopback(),
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IsMulticast: ip.IsMulticast(),
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IsPrivate: ip.IsPrivate(),
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IsUnspecified: ip.IsUnspecified(),
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IsValid: ip.IsValid(),
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}
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}
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if err = tbl.Bulk(rows); err != nil {
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log.Panicln(err)
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}
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if err = tbl.Render(); err != nil {
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log.Panicln(err)
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}
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}
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