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comparison libtommath/bn_mp_fwrite.c @ 1692:1051e4eea25a

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Update LibTomMath to 1.2.0 (#84) * update C files * update other files * update headers * update makefiles * remove mp_set/get_double() * use ltm 1.2.0 API * update ltm_desc * use bundled tommath if system-tommath is too old * XMALLOC etc. were changed to MP_MALLOC etc.
author Steffen Jaeckel <s@jaeckel.eu>
date Tue, 26 May 2020 17:36:47 +0200
parents f52919ffd3b1
children
comparison
equal deleted inserted replaced
1691:2d3745d58843 1692:1051e4eea25a
1 #include "tommath_private.h" 1 #include "tommath_private.h"
2 #ifdef BN_MP_FWRITE_C 2 #ifdef BN_MP_FWRITE_C
3 /* LibTomMath, multiple-precision integer library -- Tom St Denis 3 /* LibTomMath, multiple-precision integer library -- Tom St Denis */
4 * 4 /* SPDX-License-Identifier: Unlicense */
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 * SPDX-License-Identifier: Unlicense
13 */
14 5
15 #ifndef LTM_NO_FILE 6 #ifndef MP_NO_FILE
16 int mp_fwrite(const mp_int *a, int radix, FILE *stream) 7 mp_err mp_fwrite(const mp_int *a, int radix, FILE *stream)
17 { 8 {
18 char *buf; 9 char *buf;
19 int err, len, x; 10 mp_err err;
11 int len;
12 size_t written;
20 13
21 if ((err = mp_radix_size(a, radix, &len)) != MP_OKAY) { 14 /* TODO: this function is not in this PR */
22 return err; 15 if (MP_HAS(MP_RADIX_SIZE_OVERESTIMATE)) {
16 /* if ((err = mp_radix_size_overestimate(&t, base, &len)) != MP_OKAY) goto LBL_ERR; */
17 } else {
18 if ((err = mp_radix_size(a, radix, &len)) != MP_OKAY) {
19 return err;
20 }
23 } 21 }
24 22
25 buf = OPT_CAST(char) XMALLOC((size_t)len); 23 buf = (char *) MP_MALLOC((size_t)len);
26 if (buf == NULL) { 24 if (buf == NULL) {
27 return MP_MEM; 25 return MP_MEM;
28 } 26 }
29 27
30 if ((err = mp_toradix(a, buf, radix)) != MP_OKAY) { 28 if ((err = mp_to_radix(a, buf, (size_t)len, &written, radix)) != MP_OKAY) {
31 XFREE(buf); 29 goto LBL_ERR;
32 return err;
33 } 30 }
34 31
35 for (x = 0; x < len; x++) { 32 if (fwrite(buf, written, 1uL, stream) != 1uL) {
36 if (fputc((int)buf[x], stream) == EOF) { 33 err = MP_ERR;
37 XFREE(buf); 34 goto LBL_ERR;
38 return MP_VAL;
39 }
40 } 35 }
36 err = MP_OKAY;
41 37
42 XFREE(buf); 38
43 return MP_OKAY; 39 LBL_ERR:
40 MP_FREE_BUFFER(buf, (size_t)len);
41 return err;
44 } 42 }
45 #endif 43 #endif
46 44
47 #endif 45 #endif
48
49 /* ref: HEAD -> master, tag: v1.1.0 */
50 /* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
51 /* commit time: 2019-01-28 20:32:32 +0100 */