diff options
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/openssl/ossl_cipher.c | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/ext/openssl/ossl_cipher.c b/ext/openssl/ossl_cipher.c index a786ffab..89744a18 100644 --- a/ext/openssl/ossl_cipher.c +++ b/ext/openssl/ossl_cipher.c @@ -331,25 +331,23 @@ ossl_cipher_update_long(EVP_CIPHER_CTX *ctx, unsigned char *out, long *out_len_p const unsigned char *in, long in_len) { int out_part_len; + int limit = INT_MAX / 2 + 1; long out_len = 0; -#define UPDATE_LENGTH_LIMIT INT_MAX - -#if SIZEOF_LONG > UPDATE_LENGTH_LIMIT - if (in_len > UPDATE_LENGTH_LIMIT) { - const int in_part_len = (UPDATE_LENGTH_LIMIT / 2 + 1) & ~1; - do { - if (!EVP_CipherUpdate(ctx, out ? (out + out_len) : 0, - &out_part_len, in, in_part_len)) - return 0; - out_len += out_part_len; - in += in_part_len; - } while ((in_len -= in_part_len) > UPDATE_LENGTH_LIMIT); - } -#endif - if (!EVP_CipherUpdate(ctx, out ? (out + out_len) : 0, - &out_part_len, in, (int)in_len)) - return 0; - if (out_len_ptr) *out_len_ptr = out_len += out_part_len; + + do { + int in_part_len = in_len > limit ? limit : in_len; + + if (!EVP_CipherUpdate(ctx, out ? (out + out_len) : 0, + &out_part_len, in, in_part_len)) + return 0; + + out_len += out_part_len; + in += in_part_len; + } while ((in_len -= limit) > 0); + + if (out_len_ptr) + *out_len_ptr = out_len; + return 1; } |