diff options
Diffstat (limited to 'src/lib/libcrypto/bn/bn_ctx.c')
-rw-r--r-- | src/lib/libcrypto/bn/bn_ctx.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/src/lib/libcrypto/bn/bn_ctx.c b/src/lib/libcrypto/bn/bn_ctx.c deleted file mode 100644 index 7daf19eb84..0000000000 --- a/src/lib/libcrypto/bn/bn_ctx.c +++ /dev/null | |||
@@ -1,155 +0,0 @@ | |||
1 | /* crypto/bn/bn_ctx.c */ | ||
2 | /* Written by Ulf Moeller for the OpenSSL project. */ | ||
3 | /* ==================================================================== | ||
4 | * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. | ||
5 | * | ||
6 | * Redistribution and use in source and binary forms, with or without | ||
7 | * modification, are permitted provided that the following conditions | ||
8 | * are met: | ||
9 | * | ||
10 | * 1. Redistributions of source code must retain the above copyright | ||
11 | * notice, this list of conditions and the following disclaimer. | ||
12 | * | ||
13 | * 2. Redistributions in binary form must reproduce the above copyright | ||
14 | * notice, this list of conditions and the following disclaimer in | ||
15 | * the documentation and/or other materials provided with the | ||
16 | * distribution. | ||
17 | * | ||
18 | * 3. All advertising materials mentioning features or use of this | ||
19 | * software must display the following acknowledgment: | ||
20 | * "This product includes software developed by the OpenSSL Project | ||
21 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
22 | * | ||
23 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
24 | * endorse or promote products derived from this software without | ||
25 | * prior written permission. For written permission, please contact | ||
26 | * openssl-core@openssl.org. | ||
27 | * | ||
28 | * 5. Products derived from this software may not be called "OpenSSL" | ||
29 | * nor may "OpenSSL" appear in their names without prior written | ||
30 | * permission of the OpenSSL Project. | ||
31 | * | ||
32 | * 6. Redistributions of any form whatsoever must retain the following | ||
33 | * acknowledgment: | ||
34 | * "This product includes software developed by the OpenSSL Project | ||
35 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
36 | * | ||
37 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
38 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
39 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
40 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
41 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
42 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
43 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
44 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
45 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
46 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
47 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
48 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
49 | * ==================================================================== | ||
50 | * | ||
51 | * This product includes cryptographic software written by Eric Young | ||
52 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
53 | * Hudson (tjh@cryptsoft.com). | ||
54 | * | ||
55 | */ | ||
56 | |||
57 | #ifndef BN_CTX_DEBUG | ||
58 | # undef NDEBUG /* avoid conflicting definitions */ | ||
59 | # define NDEBUG | ||
60 | #endif | ||
61 | |||
62 | #include <stdio.h> | ||
63 | #include <assert.h> | ||
64 | |||
65 | #include "cryptlib.h" | ||
66 | #include "bn_lcl.h" | ||
67 | |||
68 | |||
69 | BN_CTX *BN_CTX_new(void) | ||
70 | { | ||
71 | BN_CTX *ret; | ||
72 | |||
73 | ret=(BN_CTX *)OPENSSL_malloc(sizeof(BN_CTX)); | ||
74 | if (ret == NULL) | ||
75 | { | ||
76 | BNerr(BN_F_BN_CTX_NEW,ERR_R_MALLOC_FAILURE); | ||
77 | return(NULL); | ||
78 | } | ||
79 | |||
80 | BN_CTX_init(ret); | ||
81 | ret->flags=BN_FLG_MALLOCED; | ||
82 | return(ret); | ||
83 | } | ||
84 | |||
85 | void BN_CTX_init(BN_CTX *ctx) | ||
86 | { | ||
87 | #if 0 /* explicit version */ | ||
88 | int i; | ||
89 | ctx->tos = 0; | ||
90 | ctx->flags = 0; | ||
91 | ctx->depth = 0; | ||
92 | ctx->too_many = 0; | ||
93 | for (i = 0; i < BN_CTX_NUM; i++) | ||
94 | BN_init(&(ctx->bn[i])); | ||
95 | #else | ||
96 | memset(ctx, 0, sizeof *ctx); | ||
97 | #endif | ||
98 | } | ||
99 | |||
100 | void BN_CTX_free(BN_CTX *ctx) | ||
101 | { | ||
102 | int i; | ||
103 | |||
104 | if (ctx == NULL) return; | ||
105 | assert(ctx->depth == 0); | ||
106 | |||
107 | for (i=0; i < BN_CTX_NUM; i++) | ||
108 | BN_clear_free(&(ctx->bn[i])); | ||
109 | if (ctx->flags & BN_FLG_MALLOCED) | ||
110 | OPENSSL_free(ctx); | ||
111 | } | ||
112 | |||
113 | void BN_CTX_start(BN_CTX *ctx) | ||
114 | { | ||
115 | if (ctx->depth < BN_CTX_NUM_POS) | ||
116 | ctx->pos[ctx->depth] = ctx->tos; | ||
117 | ctx->depth++; | ||
118 | } | ||
119 | |||
120 | |||
121 | BIGNUM *BN_CTX_get(BN_CTX *ctx) | ||
122 | { | ||
123 | /* Note: If BN_CTX_get is ever changed to allocate BIGNUMs dynamically, | ||
124 | * make sure that if BN_CTX_get fails once it will return NULL again | ||
125 | * until BN_CTX_end is called. (This is so that callers have to check | ||
126 | * only the last return value.) | ||
127 | */ | ||
128 | if (ctx->depth > BN_CTX_NUM_POS || ctx->tos >= BN_CTX_NUM) | ||
129 | { | ||
130 | if (!ctx->too_many) | ||
131 | { | ||
132 | BNerr(BN_F_BN_CTX_GET,BN_R_TOO_MANY_TEMPORARY_VARIABLES); | ||
133 | /* disable error code until BN_CTX_end is called: */ | ||
134 | ctx->too_many = 1; | ||
135 | } | ||
136 | return NULL; | ||
137 | } | ||
138 | return (&(ctx->bn[ctx->tos++])); | ||
139 | } | ||
140 | |||
141 | void BN_CTX_end(BN_CTX *ctx) | ||
142 | { | ||
143 | if (ctx == NULL) return; | ||
144 | assert(ctx->depth > 0); | ||
145 | if (ctx->depth == 0) | ||
146 | /* should never happen, but we can tolerate it if not in | ||
147 | * debug mode (could be a 'goto err' in the calling function | ||
148 | * before BN_CTX_start was reached) */ | ||
149 | BN_CTX_start(ctx); | ||
150 | |||
151 | ctx->too_many = 0; | ||
152 | ctx->depth--; | ||
153 | if (ctx->depth < BN_CTX_NUM_POS) | ||
154 | ctx->tos = ctx->pos[ctx->depth]; | ||
155 | } | ||