buffer is too small.
BN_bn2hex() and BN_bn2dec() return a null-terminated string, or NULL
-on error. BN_hex2bn() and BN_dec2bn() return the the length of valid
-representation in hexadecimal or decimal digits, and 0 on error, in which
+on error. BN_hex2bn() and BN_dec2bn() return the number of characters
+used in parsing, or 0 on error, in which
case no new B<BIGNUM> will be created.
BN_print_fp() and BN_print() return 1 on success, 0 on write errors.
=head1 SEE ALSO
-L<bn(7)>, L<ERR_get_error(3)>, L<BN_zero(3)>,
+L<ERR_get_error(3)>, L<BN_zero(3)>,
L<ASN1_INTEGER_to_BN(3)>,
L<BN_num_bytes(3)>
=head1 COPYRIGHT
-Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy