2 * This file is part of DisOrder.
3 * Copyright (C) 2005 Richard Kettlewell
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 /* test whether v is 0 */
29 static int zero(const unsigned long *v, int nwords) {
32 for(n = 0; n < nwords && !v[n]; ++n)
37 /* divide v by m returning the remainder */
38 static unsigned divide(unsigned long *v, int nwords, unsigned long m) {
39 unsigned long r = 0, a, b;
42 /* we do the divide 16 bits at a time */
43 for(n = 0; n < nwords; ++n) {
57 int basen(unsigned long *v,
63 static const char chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
66 if(i <= 1) return -1; /* overflow */
67 buffer[--i] = chars[divide(v, nwords, base)];
68 } while(!zero(v, nwords));
69 memmove(buffer, buffer + i, bufsize - i);
70 buffer[bufsize - i] = 0;