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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package unix
import (
"reflect"
"testing"
"unsafe"
)
func Test_anyToSockaddr_darwin(t *testing.T) {
tests := []struct {
name string
rsa *RawSockaddrAny
sa Sockaddr
err error
}{
{
name: "AF_SYSTEM emtpy",
rsa: sockaddrCtlToAny(RawSockaddrCtl{}),
err: EAFNOSUPPORT,
},
{
name: "AF_SYSTEM no sysaddr",
rsa: sockaddrCtlToAny(RawSockaddrCtl{
Sc_family: AF_SYSTEM,
}),
err: EAFNOSUPPORT,
},
{
name: "AF_SYSTEM/AF_SYS_CONTROL empty ",
rsa: sockaddrCtlToAny(RawSockaddrCtl{
Sc_family: AF_SYSTEM,
Ss_sysaddr: AF_SYS_CONTROL,
}),
sa: &SockaddrCtl{},
},
{
name: "AF_SYSTEM ID and unit",
rsa: sockaddrCtlToAny(RawSockaddrCtl{
Sc_family: AF_SYSTEM,
Ss_sysaddr: AF_SYS_CONTROL,
Sc_id: 0x42,
Sc_unit: 0xC71,
}),
sa: &SockaddrCtl{
ID: 0x42,
Unit: 0xC71,
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
fd := int(0)
sa, err := anyToSockaddr(fd, tt.rsa)
if err != tt.err {
t.Fatalf("unexpected error: %v, want: %v", err, tt.err)
}
if !reflect.DeepEqual(sa, tt.sa) {
t.Fatalf("unexpected Sockaddr:\n got: %#v\nwant: %#v", sa, tt.sa)
}
})
}
}
func TestSockaddrCtl_sockaddr(t *testing.T) {
tests := []struct {
name string
sa *SockaddrCtl
raw *RawSockaddrCtl
err error
}{
{
name: "empty",
sa: &SockaddrCtl{},
raw: &RawSockaddrCtl{
Sc_len: SizeofSockaddrCtl,
Sc_family: AF_SYSTEM,
Ss_sysaddr: AF_SYS_CONTROL,
},
},
{
name: "with ID and unit",
sa: &SockaddrCtl{
ID: 0x42,
Unit: 0xff,
},
raw: &RawSockaddrCtl{
Sc_len: SizeofSockaddrCtl,
Sc_family: AF_SYSTEM,
Ss_sysaddr: AF_SYS_CONTROL,
Sc_id: 0x42,
Sc_unit: 0xff,
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
out, l, err := tt.sa.sockaddr()
if err != tt.err {
t.Fatalf("unexpected error: %v, want: %v", err, tt.err)
}
// Must be 0 on error or a fixed size otherwise.
if (tt.err != nil && l != 0) || (tt.raw != nil && l != SizeofSockaddrCtl) {
t.Fatalf("unexpected Socklen: %d", l)
}
if out != nil {
raw := (*RawSockaddrCtl)(out)
if !reflect.DeepEqual(raw, tt.raw) {
t.Fatalf("unexpected RawSockaddrCtl:\n got: %#v\nwant: %#v", raw, tt.raw)
}
}
})
}
}
func sockaddrCtlToAny(in RawSockaddrCtl) *RawSockaddrAny {
var out RawSockaddrAny
copy(
(*(*[SizeofSockaddrAny]byte)(unsafe.Pointer(&out)))[:],
(*(*[SizeofSockaddrCtl]byte)(unsafe.Pointer(&in)))[:],
)
return &out
}
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