mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-11-07 10:47:48 -05:00
26 lines
464 B
Go
26 lines
464 B
Go
|
package internal
|
||
|
|
|
||
|
|
import (
|
||
|
|
"errors"
|
||
|
|
"net"
|
||
|
|
"reflect"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
ErrInvalidConn = errors.New("Invalid Connection.")
|
||
|
|
)
|
||
|
|
|
||
|
|
func GetSysFd(conn net.Conn) (int, error) {
|
||
|
|
cv := reflect.ValueOf(conn)
|
||
|
|
switch ce := cv.Elem(); ce.Kind() {
|
||
|
|
case reflect.Struct:
|
||
|
|
netfd := ce.FieldByName("conn").FieldByName("fd")
|
||
|
|
switch fe := netfd.Elem(); fe.Kind() {
|
||
|
|
case reflect.Struct:
|
||
|
|
fd := fe.FieldByName("sysfd")
|
||
|
|
return int(fd.Int()), nil
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 0, ErrInvalidConn
|
||
|
|
}
|