Mercurial > dropbear

annotate libtommath/bn_mp_to_unsigned_bin_n.c @ 376:4f2dbd1c3685 channel-fix

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Add some code for testing whether a writefd is closed (by read()ing from it)
author Matt Johnston <matt@ucc.asn.au>
date Tue, 05 Dec 2006 15:23:06 +0000
parents eed26cff980b
children 5ff8218bcee9
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1 #include <tommath.h>
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2 #ifdef BN_MP_TO_UNSIGNED_BIN_N_C
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3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
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4 *
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5 * LibTomMath is a library that provides multiple-precision
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6 * integer arithmetic as well as number theoretic functionality.
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7 *
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8 * The library was designed directly after the MPI library by
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9 * Michael Fromberger but has been written from scratch with
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10 * additional optimizations in place.
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11 *
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12 * The library is free for all purposes without any express
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13 * guarantee it works.
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14 *
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15 * Tom St Denis, [email protected], http://math.libtomcrypt.org
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16 */
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17
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18 /* store in unsigned [big endian] format */
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19 int mp_to_unsigned_bin_n (mp_int * a, unsigned char *b, unsigned long *outlen)
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20 {
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21 if (*outlen < (unsigned long)mp_unsigned_bin_size(a)) {
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22 return MP_VAL;
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23 }
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24 *outlen = mp_unsigned_bin_size(a);
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25 return mp_to_unsigned_bin(a, b);
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26 }
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27 #endif