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check BN_copy() return value

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This commit is contained in:
Bodo Möller 2005-05-26 04:30:48 +00:00
parent e5cd536894
commit a506b8c7dd
1 changed files with 8 additions and 3 deletions
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11
crypto/bn/bn_blind.c
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@ -207,6 +207,8 @@ int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx)
int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx) int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx)
{ {
int ret = 1;
bn_check_top(n); bn_check_top(n);
if ((b->A == NULL) || (b->Ai == NULL)) if ((b->A == NULL) || (b->Ai == NULL))
@ -216,9 +218,13 @@ int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx)
} }
if (r != NULL) if (r != NULL)
BN_copy(r, b->Ai); {
if (!BN_copy(r, b->Ai)) ret=0;
}
return BN_mod_mul(n,n,b->A,b->mod,ctx); if (!BN_mod_mul(n,n,b->A,b->mod,ctx)) ret=0;
return ret;
} }
int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx) int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx)
@ -351,4 +357,3 @@ err:
return ret; return ret;
} }