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Add debug-screening of input parameters to some functions I'd missed

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This commit is contained in:
Geoff Thorpe 2003-11-06 23:13:04 +00:00
parent 5c0c22803e
commit 18f62d4b82
1 changed files with 12 additions and 0 deletions
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12
crypto/bn/bn_shift.c
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@ -65,6 +65,9 @@ int BN_lshift1(BIGNUM *r, const BIGNUM *a)
register BN_ULONG *ap,*rp,t,c; register BN_ULONG *ap,*rp,t,c;
int i; int i;
bn_check_top(r);
bn_check_top(a);
if (r != a) if (r != a)
{ {
r->neg=a->neg; r->neg=a->neg;
@ -98,6 +101,9 @@ int BN_rshift1(BIGNUM *r, const BIGNUM *a)
BN_ULONG *ap,*rp,t,c; BN_ULONG *ap,*rp,t,c;
int i; int i;
bn_check_top(r);
bn_check_top(a);
if (BN_is_zero(a)) if (BN_is_zero(a))
{ {
BN_zero(r); BN_zero(r);
@ -129,6 +135,9 @@ int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
BN_ULONG *t,*f; BN_ULONG *t,*f;
BN_ULONG l; BN_ULONG l;
bn_check_top(r);
bn_check_top(a);
r->neg=a->neg; r->neg=a->neg;
nw=n/BN_BITS2; nw=n/BN_BITS2;
if (bn_wexpand(r,a->top+nw+1) == NULL) return(0); if (bn_wexpand(r,a->top+nw+1) == NULL) return(0);
@ -162,6 +171,9 @@ int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)
BN_ULONG *t,*f; BN_ULONG *t,*f;
BN_ULONG l,tmp; BN_ULONG l,tmp;
bn_check_top(r);
bn_check_top(a);
nw=n/BN_BITS2; nw=n/BN_BITS2;
rb=n%BN_BITS2; rb=n%BN_BITS2;
lb=BN_BITS2-rb; lb=BN_BITS2-rb;