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annotate libtomcrypt/src/misc/mpi/mpi_to_ltc_error.c @ 404:a588558bfc94

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Fix potential null pointer dereference found by Klokwork
author Matt Johnston <matt@ucc.asn.au>
date Sat, 03 Feb 2007 09:58:14 +0000
parents 1b9e69c058d2
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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 * Tom St Denis, [email protected], http://libtomcrypt.org
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10 */
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11 #include "tomcrypt.h"
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12
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13 /**
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14 @file mpi_to_ltc_error.c
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15 Convert MPI errors to LTC, Tom St Denis
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16 */
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18 #ifdef MPI
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19 static const struct {
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20 int mpi_code, ltc_code;
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21 } mpi_to_ltc_codes[] = {
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22 { MP_OKAY , CRYPT_OK},
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23 { MP_MEM , CRYPT_MEM},
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24 { MP_VAL , CRYPT_INVALID_ARG},
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25 };
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27 /**
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28 Convert a MPI error to a LTC error (Possibly the most powerful function ever! Oh wait... no)
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29 @param err The error to convert
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30 @return The equivalent LTC error code or CRYPT_ERROR if none found
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31 */
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32 int mpi_to_ltc_error(int err)
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33 {
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34 int x;
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36 for (x = 0; x < (int)(sizeof(mpi_to_ltc_codes)/sizeof(mpi_to_ltc_codes[0])); x++) {
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37 if (err == mpi_to_ltc_codes[x].mpi_code) {
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38 return mpi_to_ltc_codes[x].ltc_code;
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39 }
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40 }
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41 return CRYPT_ERROR;
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42 }
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43 #endif
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46 /* $Source: /cvs/libtom/libtomcrypt/src/misc/mpi/mpi_to_ltc_error.c,v $ */
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47 /* $Revision: 1.3 $ */
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48 /* $Date: 2005/05/05 14:35:59 $ */