Update network.go by revisiting #5134

[vivekkoya]

From the go source code on potential conflicts in IP Addressing schemes: https://cs.opensource.google/go/go/+/master:src/net/rawconn_unix_test.go
// There's no guarantee that IP-level socket
// options work well with dual stack sockets.
// A simple solution would be to take a look
// at the bound address to the raw connection
// and to classify the address family of the
// underlying socket by the bound address:
//
// - When IP.To16() != nil and IP.To4() == nil,
// we can assume that the raw connection
// consists of an IPv6 socket using only
// IPv6 addresses.
//
// - When IP.To16() == nil and IP.To4() != nil,
// the raw connection consists of an IPv4
// socket using only IPv4 addresses.
//
// - Otherwise, the raw connection is a dual
// stack socket, an IPv6 socket using IPv6
// addresses including IPv4-mapped or
// IPv4-embedded IPv6 addresses.

What problem are we solving?

How are we solving the problem?

How is the PR tested?

Checks

• I have added unit tests if possible.
• I will add related wiki document changes and link to this PR after merging.

[chrislusf]

running on Mac:

chrislu/tmp ()  > weed server -options=local1.option
I0102 16:12:31.064095 master.go:269 current: fe80::1:9333 peers:
I0102 16:12:31.068461 file_util.go:27 Folder /Users/chrislu/tmp/99 Permission: -rwxr-xr-x
I0102 16:12:31.068633 master.go:269 current: fe80::1:9333 peers:[fe80::1]:9333
I0102 16:12:31.068629 file_util.go:27 Folder /Users/chrislu/tmp/99 Permission: -rwxr-xr-x
I0102 16:12:31.068761 master_server.go:127 Volume Size Limit is 1000 MB
I0102 16:12:31.068981 master.go:150 Start Seaweed Master 30GB 3.60  at [fe80::1]:9333
F0102 16:12:31.069251 master.go:153 Master startup error: listen tcp [fe80::1]:9333: bind: can't assign requested address
goroutine 93 [running]:
github.com/seaweedfs/seaweedfs/weed/glog.stacks(0x0)
	/Users/chrislu/go/src/github.com/seaweedfs/seaweedfs/weed/glog/glog.go:768 +0x85
github.com/seaweedfs/seaweedfs/weed/glog.(*loggingT).output(0x1038f6800, 0x3, 0xc000121810, {0x102c42b15?, 0xc00066fdc8?}, 0x1?, 0x0)
	/Users/chrislu/go/src/github.com/seaweedfs/seaweedfs/weed/glog/glog.go:719 +0x38a
github.com/seaweedfs/seaweedfs/weed/glog.(*loggingT).printf(0xc0001374a0?, 0x7?, {0x101f8a1e5, 0x18}, {0xc00066fdc8, 0x1, 0x1})
	/Users/chrislu/go/src/github.com/seaweedfs/seaweedfs/weed/glog/glog.go:657 +0x10a
github.com/seaweedfs/seaweedfs/weed/glog.Fatalf(...)
	/Users/chrislu/go/src/github.com/seaweedfs/seaweedfs/weed/glog/glog.go:1154
github.com/seaweedfs/seaweedfs/weed/command.startMaster({0xc0003a0f80, 0xc0003a0f98, 0xc000909dc0, 0xc000909dc0, 0xc0005abf80, 0xc0002c7c10, 0xc0003a0fa0, 0xc0003a0fb5, 0xc0005abfc0, 0xc0003a0fc0, ...}, ...)
	/Users/chrislu/go/src/github.com/seaweedfs/seaweedfs/weed/command/master.go:153 +0x39c
created by github.com/seaweedfs/seaweedfs/weed/command.runServer in goroutine 1
	/Users/chrislu/go/src/github.com/seaweedfs/seaweedfs/weed/command/server.go:310 +0xb2a
I0102 16:12:31.070744 volume_grpc_client_to_master.go:43 checkWithMaster [fe80::1]:9333: get master [fe80::1]:9333 configuration: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing: dial tcp [fe80::1]:19333: connect: no route to host"

The options file content:

chrislu/tmp ()  > cat local1.option
dir=/Users/chrislu/tmp/99
master.volumeSizeLimitMB=1000
master.port=9333
volume.max=0
volume.port=8085
volume.preStopSeconds=1
filer=true
filer.port=8888
localSocket=/tmp/abcd/xx.sock