Method PushNullTerminatedByteSlice

pkg/sentry/arch/stack.go:107–118

PushNullTerminatedByteSlice writes bs to the stack, followed by an extra null byte at the end. On error, the contents of the stack and the bottom cursor are undefined.

(bs []byte)

// byte at the end. On error, the contents of the stack and the bottom cursor
// are undefined.
func (s *Stack) PushNullTerminatedByteSlice(bs []byte) (int, error) {
	// Note: Stack grows up, so write the terminal null byte first.
	nNull, err := primitive.CopyUint8Out(s, StackBottomMagic, 0)
	if err != nil {
		return 0, err
	}
	n, err := primitive.CopyByteSliceOut(s, StackBottomMagic, bs)
	if err != nil {
		return 0, err
	}
	return n + nNull, nil
}

// StackLayout describes the location of the arguments and environment on the
// stack.