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annotate libtomcrypt/src/math/multi.c @ 533:805ae74ec024

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Encrypt in-place, avoid an extra malloc
author Matt Johnston <matt@ucc.asn.au>
date Sun, 01 Mar 2009 14:38:25 +0000
parents 0cbe8f6dbf9e
children f849a5ca2efc
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382
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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.com
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10 */
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11 #include "tomcrypt.h"
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12
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13 #ifdef MPI
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14 #include <stdarg.h>
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15
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16 int ltc_init_multi(void **a, ...)
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17 {
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18 void **cur = a;
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19 int np = 0;
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20 va_list args;
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21
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22 va_start(args, a);
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23 while (cur != NULL) {
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24 if (mp_init(cur) != CRYPT_OK) {
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25 /* failed */
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26 va_list clean_list;
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27
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28 va_start(clean_list, a);
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29 cur = a;
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30 while (np--) {
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31 mp_clear(*cur);
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32 cur = va_arg(clean_list, void**);
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33 }
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34 va_end(clean_list);
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35 return CRYPT_MEM;
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36 }
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37 ++np;
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38 cur = va_arg(args, void**);
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39 }
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40 va_end(args);
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41 return CRYPT_OK;
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42 }
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43
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44 void ltc_deinit_multi(void *a, ...)
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45 {
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46 void *cur = a;
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47 va_list args;
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48
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49 va_start(args, a);
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50 while (cur != NULL) {
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51 mp_clear(cur);
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52 cur = va_arg(args, void *);
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53 }
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54 va_end(args);
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55 }
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56
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57 #endif
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58
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59 /* $Source: /cvs/libtom/libtomcrypt/src/math/multi.c,v $ */
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60 /* $Revision: 1.5 $ */
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61 /* $Date: 2006/03/31 14:15:35 $ */