fix android net

• fix x/mobile: Calling net.InterfaceAddrs() fails on Android SDK 30
• network: route ip+net: netlinkrib: permission denied

releas

go version 1.21.4 here

go version 1.22.4 here

build

1. download

   wget https://go.dev/dl/go1.21.4.src.tar.gz
   tar -xzf go1.21.4.linux-amd64.tar.gz
   git clone https://github.com/nfsq246/fix-android-net.git
   

2. copy

   cp fix-android-net/interface_android.go go/src/net/
   cp fix-android-net/netlink_android.go go/src/syscall/
   

3. edit

   vim go/src/net/interface_linux.go
   

   add "//go:build !android" on line 4

   // license that can be found in the LICENSE file.
   +++ //go:build !android
   package net
   
   import (
       "fmt"
       "os/exec"
       "testing"
   )

   vim go/src/net/interface_linux_test.go
   

   add "//go:build !android" on line 4

   // license that can be found in the LICENSE file.
   +++ //go:build !android
   package net
   
   import (
       "os"
       "syscall"
       "unsafe"
   )

   vim go/src/syscall/netlink_linux.go
   

   add "//go:build !android" on line 6

   // Netlink sockets and messages
   +++ //go:build !android
   package syscall
   
   import (
       "sync"
       "unsafe"
   )

4. build source code

   ./go/src/all.bash
   ## you will see success build
   tar -zcvf go1.21.4.net.linux-amd64.tar.gz go
   

references

github.com/wlynxg/anet

github.com/golang/go/issues/40569 1 2 3