diff options
Diffstat (limited to 'libtommath/bn_mp_import.c')
| -rw-r--r-- | libtommath/bn_mp_import.c | 29 |
1 files changed, 8 insertions, 21 deletions
diff --git a/libtommath/bn_mp_import.c b/libtommath/bn_mp_import.c index 066c5b3..bd83b96 100644 --- a/libtommath/bn_mp_import.c +++ b/libtommath/bn_mp_import.c @@ -1,24 +1,15 @@ #include "tommath_private.h" #ifdef BN_MP_IMPORT_C -/* LibTomMath, multiple-precision integer library -- Tom St Denis - * - * LibTomMath is a library that provides multiple-precision - * integer arithmetic as well as number theoretic functionality. - * - * The library was designed directly after the MPI library by - * Michael Fromberger but has been written from scratch with - * additional optimizations in place. - * - * SPDX-License-Identifier: Unlicense - */ +/* LibTomMath, multiple-precision integer library -- Tom St Denis */ +/* SPDX-License-Identifier: Unlicense */ /* based on gmp's mpz_import. * see http://gmplib.org/manual/Integer-Import-and-Export.html */ -int mp_import(mp_int *rop, size_t count, int order, size_t size, - int endian, size_t nails, const void *op) +mp_err mp_import(mp_int *rop, size_t count, int order, size_t size, + int endian, size_t nails, const void *op) { - int result; + mp_err err; size_t odd_nails, nail_bytes, i, j; unsigned char odd_nail_mask; @@ -43,12 +34,12 @@ int mp_import(mp_int *rop, size_t count, int order, size_t size, for (i = 0; i < count; ++i) { for (j = 0; j < (size - nail_bytes); ++j) { - unsigned char byte = *((unsigned char *)op + + unsigned char byte = *((const unsigned char *)op + (((order == 1) ? i : ((count - 1u) - i)) * size) + ((endian == 1) ? (j + nail_bytes) : (((size - 1u) - j) - nail_bytes))); - if ((result = mp_mul_2d(rop, (j == 0u) ? (int)(8u - odd_nails) : 8, rop)) != MP_OKAY) { - return result; + if ((err = mp_mul_2d(rop, (j == 0u) ? (int)(8u - odd_nails) : 8, rop)) != MP_OKAY) { + return err; } rop->dp[0] |= (j == 0u) ? (mp_digit)(byte & odd_nail_mask) : (mp_digit)byte; @@ -62,7 +53,3 @@ int mp_import(mp_int *rop, size_t count, int order, size_t size, } #endif - -/* ref: $Format:%D$ */ -/* git commit: $Format:%H$ */ -/* commit time: $Format:%ai$ */ |