diff options
Diffstat (limited to 'fuzz/bndiv.c')
| -rw-r--r-- | fuzz/bndiv.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/fuzz/bndiv.c b/fuzz/bndiv.c index 521281109b..45a3937992 100644 --- a/fuzz/bndiv.c +++ b/fuzz/bndiv.c @@ -17,14 +17,21 @@ #include <openssl/bn.h> #include "fuzzer.h" +int FuzzerInitialize(int *argc, char ***argv) { + return 1; +} + int FuzzerTestOneInput(const uint8_t *buf, size_t len) { - int success = 0; static BN_CTX *ctx; static BIGNUM *b1; static BIGNUM *b2; static BIGNUM *b3; static BIGNUM *b4; static BIGNUM *b5; + int success = 0; + size_t l1 = 0, l2 = 0; + /* s1 and s2 will be the signs for b1 and b2. */ + int s1 = 0, s2 = 0; if (ctx == NULL) { b1 = BN_new(); @@ -34,16 +41,15 @@ int FuzzerTestOneInput(const uint8_t *buf, size_t len) { b5 = BN_new(); ctx = BN_CTX_new(); } - // We are going to split the buffer in two, sizes l1 and l2, giving b1 and - // b2. - size_t l1 = 0, l2 = 0; - // s1 and s2 will be the signs for b1 and b2. - int s1 = 0, s2 = 0; + /* We are going to split the buffer in two, sizes l1 and l2, giving b1 and + * b2. + */ if (len > 0) { --len; - // Use first byte to divide the remaining buffer into 3Fths. I admit - // this disallows some number sizes. If it matters, better ideas are - // welcome (Ben). + /* Use first byte to divide the remaining buffer into 3Fths. I admit + * this disallows some number sizes. If it matters, better ideas are + * welcome (Ben). + */ l1 = ((buf[0] & 0x3f) * len) / 0x3f; s1 = buf[0] & 0x40; s2 = buf[0] & 0x80; @@ -55,7 +61,7 @@ int FuzzerTestOneInput(const uint8_t *buf, size_t len) { OPENSSL_assert(BN_bin2bn(buf + l1, l2, b2) == b2); BN_set_negative(b2, s2); - // divide by 0 is an error + /* divide by 0 is an error */ if (BN_is_zero(b2)) { success = 1; goto done; |