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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