File: self_suite_linux_test.go

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//go:build linux

package self_test

import (
	"errors"
	"os"

	"golang.org/x/sys/unix"
)

// The first sendmsg call on a new UDP socket sometimes errors on Linux.
// It's not clear why this happens.
// See https://github.com/golang/go/issues/63322.
func isPermissionError(err error) bool {
	var serr *os.SyscallError
	if errors.As(err, &serr) {
		return serr.Syscall == "sendmsg" && serr.Err == unix.EPERM
	}
	return false
}