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| author | Nils Larsch <nils@openssl.org> | 2005-07-17 16:09:09 +0000 |
|---|---|---|
| committer | Nils Larsch <nils@openssl.org> | 2005-07-17 16:09:09 +0000 |
| commit | 449bd384ed0577ab9a0899c9237ad1ee918ec870 (patch) | |
| tree | 27a32324ed0fbab0835d75479cc4d62fe104d69b /crypto/bn/bn_word.c | |
| parent | 3eeaab4bed46e3320947d0f609b82007b65b5a46 (diff) | |
| download | openssl-449bd384ed0577ab9a0899c9237ad1ee918ec870.zip openssl-449bd384ed0577ab9a0899c9237ad1ee918ec870.tar.gz openssl-449bd384ed0577ab9a0899c9237ad1ee918ec870.tar.bz2 | |
bugfix: 0 - w (w != 0) is actually negative
Diffstat (limited to 'crypto/bn/bn_word.c')
| -rw-r--r-- | crypto/bn/bn_word.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/crypto/bn/bn_word.c b/crypto/bn/bn_word.c index 1bcb37e..bc5905f 100644 --- a/crypto/bn/bn_word.c +++ b/crypto/bn/bn_word.c @@ -175,7 +175,13 @@ int BN_sub_word(BIGNUM *a, BN_ULONG w) /* degenerate case: w is zero */ if (!w) return 1; /* degenerate case: a is zero */ - if(BN_is_zero(a)) return BN_set_word(a,w); + if(BN_is_zero(a)) + { + i = BN_set_word(a,w); + if (i != 0) + BN_set_negative(a, 1); + return i; + } /* handle 'a' when negative */ if (a->neg) { |