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subgraph-oz/ipc/util.go

26 lines
516 B

package ipc
import (
"reflect"
"syscall"
)
func setPassCred(c interface{}) error {
fd := reflectFD(c)
return syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_PASSCRED, 1)
}
func reflectFD(c interface{}) int {
sysfd := extractField(c, "fd", "sysfd")
return int(sysfd.Int())
}
func extractField(ob interface{}, fieldNames ...string) reflect.Value {
v := reflect.Indirect(reflect.ValueOf(ob))
for _, fn := range fieldNames {
field := v.FieldByName(fn)
v = reflect.Indirect(field)
}
return v
}