Correct PPTP server firewall rules chain.
[tomato/davidwu.git] / release / src / router / nettle / sec-sub-1.c
blobf2fec316b0171da2b04260f687553422933805de
1 /* sec-add-1.c */
3 /* nettle, low-level cryptographics library
5 * Copyright (C) 2013 Niels Möller
6 *
7 * The nettle library is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published by
9 * the Free Software Foundation; either version 2.1 of the License, or (at your
10 * option) any later version.
12 * The nettle library is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 * License for more details.
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with the nettle library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
20 * MA 02111-1301, USA.
23 /* Development of Nettle's ECC support was funded by the .SE Internet Fund. */
25 #if HAVE_CONFIG_H
26 # include "config.h"
27 #endif
29 #include "ecc-internal.h"
31 mp_limb_t
32 sec_sub_1 (mp_limb_t *rp, mp_limb_t *ap, mp_size_t n, mp_limb_t b)
34 mp_size_t i;
35 for (i = 0; i < n; i++)
37 mp_limb_t a;
38 a = ap[i];
39 rp[i] = a - b;
40 b = a < b;
42 return b;