mirror of
http://galexander.org/git/simplesshd.git
synced 2024-11-30 19:28:10 +00:00
23 lines
606 B
C
23 lines
606 B
C
|
#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
|