1 /* 2 * Copyright (c) 2001-2007, Tom St Denis 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* LibTomCrypt, modular cryptographic library -- Tom St Denis 29 * 30 * LibTomCrypt is a library that provides various cryptographic 31 * algorithms in a highly modular and flexible manner. 32 * 33 * The library is free for all purposes without any express 34 * guarantee it works. 35 * 36 * Tom St Denis, tomstdenis@gmail.com, http://libtom.org 37 */ 38 #include "tomcrypt.h" 39 40 #ifdef LTC_MPI 41 #include <stdarg.h> 42 43 int ltc_init_multi(void **a, ...) 44 { 45 void **cur = a; 46 int np = 0; 47 va_list args; 48 49 va_start(args, a); 50 while (cur != NULL) { 51 if (mp_init(cur) != CRYPT_OK) { 52 /* failed */ 53 va_list clean_list; 54 55 va_start(clean_list, a); 56 cur = a; 57 while (np--) { 58 mp_clear(*cur); 59 cur = va_arg(clean_list, void**); 60 } 61 va_end(clean_list); 62 return CRYPT_MEM; 63 } 64 ++np; 65 cur = va_arg(args, void**); 66 } 67 va_end(args); 68 return CRYPT_OK; 69 } 70 71 int ltc_init_multi_size(int size_bits, void **a, ...) 72 { 73 void **cur = a; 74 int np = 0; 75 va_list args; 76 77 va_start(args, a); 78 while (cur != NULL) { 79 if (mp_init_size(size_bits, cur) != CRYPT_OK) { 80 /* failed */ 81 va_list clean_list; 82 83 va_start(clean_list, a); 84 cur = a; 85 while (np--) { 86 mp_clear(*cur); 87 cur = va_arg(clean_list, void**); 88 } 89 va_end(clean_list); 90 return CRYPT_MEM; 91 } 92 ++np; 93 cur = va_arg(args, void**); 94 } 95 va_end(args); 96 return CRYPT_OK; 97 } 98 99 void ltc_deinit_multi(void *a, ...) 100 { 101 void *cur = a; 102 va_list args; 103 104 va_start(args, a); 105 while (cur != NULL) { 106 mp_clear(cur); 107 cur = va_arg(args, void *); 108 } 109 va_end(args); 110 } 111 112 #endif 113 114 /* $Source: /cvs/libtom/libtomcrypt/src/math/multi.c,v $ */ 115 /* $Revision: 1.6 $ */ 116 /* $Date: 2006/12/28 01:27:23 $ */ 117