Method handleClose

cmd/run/engine/process/handle.go:252–270

handleClose handles the close(2) syscall.

(n *seccomp.Notif, fd int)

// handleClose handles the close(2) syscall.
func (p *Process) handleClose(n *seccomp.Notif, fd int) error {
	s, ok := p.getDeleteSocket(fd)
	if !ok {
		return n.Skip()
	}

	if errno := s.Close(); errno != 0 {
		// Failing to close a socket cleanly isn't a fatal error. Moreover, we need
		// to let the kernel handle the syscall regardless of whether our close
		// fails because the socket needs to be removed from the process' file
		// descriptor table.
		slog.Debug("failed to close socket cleanly", "errno", errno)
		return n.Skip()
	}

	// Allow the syscall to proceed so that the process can close its copy of the
	// socket from its file descriptor table.
	return n.Skip()
}

// handleFcntl handles the fcntl(2) syscall.
func (p *Process) handleFcntl(n *seccomp.Notif, srcFD int, cmd int, arg int) error {