* [including the GNU Public Licence.]
*/
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include "bn_lcl.h"
int BN_lshift1(BIGNUM *r, const BIGNUM *a)
bn_check_top(r);
bn_check_top(a);
+ if (n < 0) {
+ BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);
+ return 0;
+ }
+
r->neg = a->neg;
nw = n / BN_BITS2;
if (bn_wexpand(r, a->top + nw + 1) == NULL)
bn_check_top(r);
bn_check_top(a);
+ if (n < 0) {
+ BNerr(BN_F_BN_RSHIFT, BN_R_INVALID_SHIFT);
+ return 0;
+ }
+
nw = n / BN_BITS2;
rb = n % BN_BITS2;
lb = BN_BITS2 - rb;