Mercurial > dropbear
view libtommath/bn_mp_copy.c @ 1629:258b57b208ae
Fix for issue successfull login of disabled user (#78)
This commit introduces fix for scenario:
1. Root login disabled on dropbear
2. PAM authentication model enabled
While login as root user, after prompt for password
user is being notified about login failrue, but
after second attempt of prompt for password within
same session, login becames succesfull.
Signed-off-by: Pawel Rapkiewicz <[email protected]>
author | vincentto13 <33652988+vincentto13@users.noreply.github.com> |
---|---|
date | Wed, 20 Mar 2019 15:03:40 +0100 |
parents | 8bba51a55704 |
children | f52919ffd3b1 |
line wrap: on
line source
#include <tommath_private.h> #ifdef BN_MP_COPY_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://libtom.org */ /* copy, b = a */ int mp_copy (mp_int * a, mp_int * b) { int res, n; /* if dst == src do nothing */ if (a == b) { return MP_OKAY; } /* grow dest */ if (b->alloc < a->used) { if ((res = mp_grow (b, a->used)) != MP_OKAY) { return res; } } /* zero b and copy the parameters over */ { mp_digit *tmpa, *tmpb; /* pointer aliases */ /* source */ tmpa = a->dp; /* destination */ tmpb = b->dp; /* copy all the digits */ for (n = 0; n < a->used; n++) { *tmpb++ = *tmpa++; } /* clear high digits */ for (; n < b->used; n++) { *tmpb++ = 0; } } /* copy used count and sign */ b->used = a->used; b->sign = a->sign; return MP_OKAY; } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */