Mercurial > dropbear
view libtommath/bn_mp_dr_setup.c @ 339:31743c9bdf78
BUG: The strings 'name' and 'instruction' are always allocated
but are only freed if the length of the string is greater then
zero. They should always be freed.
FIX: take the m_free(<string>) out of the conditional
From Erik Hovland
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Fri, 07 Jul 2006 07:00:10 +0000 |
parents | eed26cff980b |
children | 5ff8218bcee9 |
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#include <tommath.h> #ifdef BN_MP_DR_SETUP_C /* LibTomMath, multiple-precision integer library -- Tom St Denis * * LibTomMath is a library that provides multiple-precision * integer arithmetic as well as number theoretic functionality. * * The library was designed directly after the MPI library by * Michael Fromberger but has been written from scratch with * additional optimizations in place. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://math.libtomcrypt.org */ /* determines the setup value */ void mp_dr_setup(mp_int *a, mp_digit *d) { /* the casts are required if DIGIT_BIT is one less than * the number of bits in a mp_digit [e.g. DIGIT_BIT==31] */ *d = (mp_digit)((((mp_word)1) << ((mp_word)DIGIT_BIT)) - ((mp_word)a->dp[0])); } #endif