Mercurial > dropbear
view libtommath/bn_mp_fwrite.c @ 1698:f966834f0f9c
Use Linux getrandom() to ensure random device is initialised
Remove old code warning about random device being not ready,
/dev/random isn't used by default anyway.
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Thu, 28 May 2020 22:50:41 +0800 |
parents | 1051e4eea25a |
children |
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#include "tommath_private.h" #ifdef BN_MP_FWRITE_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ #ifndef MP_NO_FILE mp_err mp_fwrite(const mp_int *a, int radix, FILE *stream) { char *buf; mp_err err; int len; size_t written; /* TODO: this function is not in this PR */ if (MP_HAS(MP_RADIX_SIZE_OVERESTIMATE)) { /* if ((err = mp_radix_size_overestimate(&t, base, &len)) != MP_OKAY) goto LBL_ERR; */ } else { if ((err = mp_radix_size(a, radix, &len)) != MP_OKAY) { return err; } } buf = (char *) MP_MALLOC((size_t)len); if (buf == NULL) { return MP_MEM; } if ((err = mp_to_radix(a, buf, (size_t)len, &written, radix)) != MP_OKAY) { goto LBL_ERR; } if (fwrite(buf, written, 1uL, stream) != 1uL) { err = MP_ERR; goto LBL_ERR; } err = MP_OKAY; LBL_ERR: MP_FREE_BUFFER(buf, (size_t)len); return err; } #endif #endif