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comparison libtommath/bn_mp_fwrite.c @ 297:79bf1023cf11 agent-client

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propagate from branch 'au.asn.ucc.matt.dropbear' (head 0501e6f661b5415eb76f3b312d183c3adfbfb712) to branch 'au.asn.ucc.matt.dropbear.cli-agent' (head 01038174ec27245b51bd43a66c01ad930880f67b)
author Matt Johnston <matt@ucc.asn.au>
date Tue, 21 Mar 2006 16:20:59 +0000
parents eed26cff980b
children 5ff8218bcee9
comparison
equal deleted inserted replaced
225:ca7e76d981d9 297:79bf1023cf11
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.org
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