Ah, hell. Sorry, sorry, sorry. "[::]" is just ipv6 version of "0.0.0.0".
Okay. Hah, and I can to use "[::0:0:1]:9090" or "[::0:1]:9090" or
"[::1]:9090" and it will work. Hah, thank you man! Thank for you time.
воскресенье, 4 июня 2017 г., 18:32:42 UTC+3 пользователь Silviu Capota Mera
написал:
>
> Hi
>
> I think you wanted return ahost == bhost (instead of aport == bport)
> inside the addrCmp function, right ? Because the client is always assigned
> a random port for a TCP connection
>
> And of course, you will have to compare at nc (net.Conn) level, not at
> listener level, especially when listening on a generic [::]
>
> e.g.
> go func() {
> for {
> nc, err := l.Accept()
> if err != nil {
> log.Fatal("accept fatal: ", err)
> }
> // This is the address you need to compare with
> connectionSpecificAddr := nc.LocalAddr().String()
> connRemoteAddr := nc.RemoteAddr().String()
> fmt.Println("Listener local addr: ", connectionSpecificAddr)
> fmt.Println("Listener remote addr: ", connRemoteAddr)
> fmt.Println(addrCmp(connectionSpecificAddr, connRemoteAddr))
>
> }
> }()
>
> Cheers,
> Silviu
>
>
>
> On Saturday, 3 June 2017 23:29:24 UTC-4, Константин Иванов wrote:
>>
>> Here is a code:
>>
>> package main
>>
>> import (
>> "fmt"
>> "log"
>> "net"
>> )
>>
>> func main() {
>>
>> l, err := net.Listen("tcp", "[::]:9090")
>> if err != nil {
>> log.Fatal(err)
>> }
>> defer l.Close()
>>
>> go func() {
>> for {
>> l.Accept()
>> }
>> }()
>>
>> c, err := net.Dial("tcp", "[::]:9090")
>> if err != nil {
>> log.Fatal(err)
>> }
>> defer c.Close()
>>
>> fmt.Println(l.Addr().String())
>> fmt.Println(c.RemoteAddr().String())
>>
>> fmt.Println(addrCmp(l.Addr().String(), c.RemoteAddr().String()))
>> }
>>
>> func addrCmp(a, b string) bool {
>> if ahost, aport, err := net.SplitHostPort(a); err == nil {
>> if bhost, bport, err := net.SplitHostPort(b); err == nil {
>> if net.ParseIP(ahost).Equal(net.ParseIP(bhost)) {
>> return aport == bport
>> }
>> }
>> }
>> return false
>> }
>>
>> Output is:
>>
>> [::]:9090
>> [::1]:9090
>> false
>>
>> Is there an easy way to compare two net.Addr or two strings that
>> represents network addresses?
>>
>
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