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annotate libtomcrypt/src/math/radix_to_bin.c @ 1629:258b57b208ae

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Fix for issue successfull login of disabled user (#78) This commit introduces fix for scenario: 1. Root login disabled on dropbear 2. PAM authentication model enabled While login as root user, after prompt for password user is being notified about login failrue, but after second attempt of prompt for password within same session, login becames succesfull. Signed-off-by: Pawel Rapkiewicz <[email protected]>
author vincentto13 <33652988+vincentto13@users.noreply.github.com>
date Wed, 20 Mar 2019 15:03:40 +0100
parents 6dba84798cd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include "tomcrypt.h"
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10
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11 /**
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12 @file radix_to_bin.c
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13 Convert data from a specific radix to binary.
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14 Steffen Jaeckel
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15 */
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16
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17 /**
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18 Convert data from a specific radix to binary
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19
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20 The default MPI descriptors #ltm_desc, #tfm_desc and #gmp_desc
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21 have the following restrictions on parameters:
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22
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23 \p in - NUL-terminated char buffer
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24
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25 \p radix - 2..64
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26
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27 @param in The input
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28 @param radix The radix of the input
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29 @param out The output buffer
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30 @param len [in/out] The length of the output buffer
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31
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32 @return CRYPT_OK on success.
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33 */
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34 int radix_to_bin(const void *in, int radix, void *out, unsigned long *len)
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35 {
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36 unsigned long l;
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37 void* mpi;
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38 int err;
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39
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40 LTC_ARGCHK(in != NULL);
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41 LTC_ARGCHK(len != NULL);
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42
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43 if ((err = mp_init(&mpi)) != CRYPT_OK) return err;
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44 if ((err = mp_read_radix(mpi, in, radix)) != CRYPT_OK) goto LBL_ERR;
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45
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46 if ((l = mp_unsigned_bin_size(mpi)) > *len) {
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47 *len = l;
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48 err = CRYPT_BUFFER_OVERFLOW;
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49 goto LBL_ERR;
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50 }
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51 *len = l;
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52
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53 if ((err = mp_to_unsigned_bin(mpi, out)) != CRYPT_OK) goto LBL_ERR;
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54
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55 LBL_ERR:
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56 mp_clear(mpi);
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57 return err;
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58 }
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59
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60 /* ref: $Format:%D$ */
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61 /* git commit: $Format:%H$ */
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62 /* commit time: $Format:%ai$ */