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comparison libtommath/bn_mp_fwrite.c @ 389:5ff8218bcee9

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propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 2af95f00ebd5bb7a28b3817db1218442c935388e) to branch 'au.asn.ucc.matt.dropbear' (head ecd779509ef23a8cdf64888904fc9b31d78aa933)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 11 Jan 2007 03:14:55 +0000
parents eed26cff980b
children 60fc6476e044
comparison
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388:fb54020f78e1 389:5ff8218bcee9
1 #include <tommath.h>
2 #ifdef BN_MP_FWRITE_C
3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
4 *
5 * LibTomMath is a library that provides multiple-precision
6 * integer arithmetic as well as number theoretic functionality.
7 *
8 * The library was designed directly after the MPI library by
9 * Michael Fromberger but has been written from scratch with
10 * additional optimizations in place.
11 *
12 * The library is free for all purposes without any express
13 * guarantee it works.
14 *
15 * Tom St Denis, [email protected], http://math.libtomcrypt.com
16 */
17
18 int mp_fwrite(mp_int *a, int radix, FILE *stream)
19 {
20 char *buf;
21 int err, len, x;
22
23 if ((err = mp_radix_size(a, radix, &len)) != MP_OKAY) {
24 return err;
25 }
26
27 buf = OPT_CAST(char) XMALLOC (len);
28 if (buf == NULL) {
29 return MP_MEM;
30 }
31
32 if ((err = mp_toradix(a, buf, radix)) != MP_OKAY) {
33 XFREE (buf);
34 return err;
35 }
36
37 for (x = 0; x < len; x++) {
38 if (fputc(buf[x], stream) == EOF) {
39 XFREE (buf);
40 return MP_VAL;
41 }
42 }
43
44 XFREE (buf);
45 return MP_OKAY;
46 }
47
48 #endif
49
50 /* $Source: /cvs/libtom/libtommath/bn_mp_fwrite.c,v $ */
51 /* $Revision: 1.3 $ */
52 /* $Date: 2006/03/31 14:18:44 $ */