diff options
author | Steffen Jaeckel <s@jaeckel.eu> | 2020-05-26 17:36:47 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2020-05-26 23:36:47 +0800 |
commit | b4bd23b4d2a4c640880b49069e02cd598dd03416 (patch) | |
tree | fb480b4e501cc69b305de95fb15259aa6afa1963 /libtommath/bn_mp_to_sbin.c | |
parent | 724e61f8ae9e9f216b0252e41c5ebd5d64ad79a6 (diff) |
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.
Diffstat (limited to 'libtommath/bn_mp_to_sbin.c')
-rw-r--r-- | libtommath/bn_mp_to_sbin.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/libtommath/bn_mp_to_sbin.c b/libtommath/bn_mp_to_sbin.c new file mode 100644 index 0000000..dbaf53e --- /dev/null +++ b/libtommath/bn_mp_to_sbin.c @@ -0,0 +1,22 @@ +#include "tommath_private.h" +#ifdef BN_MP_TO_SBIN_C +/* LibTomMath, multiple-precision integer library -- Tom St Denis */ +/* SPDX-License-Identifier: Unlicense */ + +/* store in signed [big endian] format */ +mp_err mp_to_sbin(const mp_int *a, unsigned char *buf, size_t maxlen, size_t *written) +{ + mp_err err; + if (maxlen == 0u) { + return MP_BUF; + } + if ((err = mp_to_ubin(a, buf + 1, maxlen - 1u, written)) != MP_OKAY) { + return err; + } + if (written != NULL) { + (*written)++; + } + buf[0] = (a->sign == MP_ZPOS) ? (unsigned char)0 : (unsigned char)1; + return MP_OKAY; +} +#endif |