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diff --git a/src/lib/libcrypto/ex_data.c b/src/lib/libcrypto/ex_data.c
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1/* crypto/ex_data.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <stdlib.h>
61#include <openssl/buffer.h>
62#include <openssl/bio.h>
63#include <openssl/lhash.h>
64#include "cryptlib.h"
65
66int CRYPTO_get_ex_new_index(int idx, STACK_OF(CRYPTO_EX_DATA_FUNCS) **skp, long argl, void *argp,
67 CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
68 {
69 int ret= -1;
70 CRYPTO_EX_DATA_FUNCS *a;
71
72 MemCheck_off();
73 if (*skp == NULL)
74 *skp=sk_CRYPTO_EX_DATA_FUNCS_new_null();
75 if (*skp == NULL)
76 {
77 CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE);
78 goto err;
79 }
80 a=(CRYPTO_EX_DATA_FUNCS *)OPENSSL_malloc(sizeof(CRYPTO_EX_DATA_FUNCS));
81 if (a == NULL)
82 {
83 CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE);
84 goto err;
85 }
86 a->argl=argl;
87 a->argp=argp;
88 a->new_func=new_func;
89 a->dup_func=dup_func;
90 a->free_func=free_func;
91 while (sk_CRYPTO_EX_DATA_FUNCS_num(*skp) <= idx)
92 {
93 if (!sk_CRYPTO_EX_DATA_FUNCS_push(*skp,NULL))
94 {
95 CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE);
96 OPENSSL_free(a);
97 goto err;
98 }
99 }
100 sk_CRYPTO_EX_DATA_FUNCS_set(*skp,idx, a);
101 ret=idx;
102err:
103 MemCheck_on();
104 return(ret);
105 }
106
107int CRYPTO_set_ex_data(CRYPTO_EX_DATA *ad, int idx, void *val)
108 {
109 int i;
110
111 if (ad->sk == NULL)
112 {
113 if ((ad->sk=sk_new_null()) == NULL)
114 {
115 CRYPTOerr(CRYPTO_F_CRYPTO_SET_EX_DATA,ERR_R_MALLOC_FAILURE);
116 return(0);
117 }
118 }
119 i=sk_num(ad->sk);
120
121 while (i <= idx)
122 {
123 if (!sk_push(ad->sk,NULL))
124 {
125 CRYPTOerr(CRYPTO_F_CRYPTO_SET_EX_DATA,ERR_R_MALLOC_FAILURE);
126 return(0);
127 }
128 i++;
129 }
130 sk_set(ad->sk,idx,val);
131 return(1);
132 }
133
134void *CRYPTO_get_ex_data(CRYPTO_EX_DATA *ad, int idx)
135 {
136 if (ad->sk == NULL)
137 return(0);
138 else if (idx >= sk_num(ad->sk))
139 return(0);
140 else
141 return(sk_value(ad->sk,idx));
142 }
143
144/* The callback is called with the 'object', which is the original data object
145 * being duplicated, a pointer to the
146 * 'new' object to be inserted, the index, and the argi/argp
147 */
148int CRYPTO_dup_ex_data(STACK_OF(CRYPTO_EX_DATA_FUNCS) *meth, CRYPTO_EX_DATA *to,
149 CRYPTO_EX_DATA *from)
150 {
151 int i,j,m,r;
152 CRYPTO_EX_DATA_FUNCS *mm;
153 char *from_d;
154
155 if (meth == NULL) return(1);
156 if (from->sk == NULL) return(1);
157 m=sk_CRYPTO_EX_DATA_FUNCS_num(meth);
158 j=sk_num(from->sk);
159 for (i=0; i<j; i++)
160 {
161 from_d=CRYPTO_get_ex_data(from,i);
162 if (i < m)
163 {
164 mm=sk_CRYPTO_EX_DATA_FUNCS_value(meth,i);
165 if (mm->dup_func != NULL)
166 r=mm->dup_func(to,from,(char **)&from_d,i,
167 mm->argl,mm->argp);
168 }
169 CRYPTO_set_ex_data(to,i,from_d);
170 }
171 return(1);
172 }
173
174/* Call each free callback */
175void CRYPTO_free_ex_data(STACK_OF(CRYPTO_EX_DATA_FUNCS) *meth, void *obj, CRYPTO_EX_DATA *ad)
176 {
177 CRYPTO_EX_DATA_FUNCS *m;
178 void *ptr;
179 int i,max;
180
181 if (meth != NULL)
182 {
183 max=sk_CRYPTO_EX_DATA_FUNCS_num(meth);
184 for (i=0; i<max; i++)
185 {
186 m=sk_CRYPTO_EX_DATA_FUNCS_value(meth,i);
187 if ((m != NULL) && (m->free_func != NULL))
188 {
189 ptr=CRYPTO_get_ex_data(ad,i);
190 m->free_func(obj,ptr,ad,i,m->argl,m->argp);
191 }
192 }
193 }
194 if (ad->sk != NULL)
195 {
196 sk_free(ad->sk);
197 ad->sk=NULL;
198 }
199 }
200
201void CRYPTO_new_ex_data(STACK_OF(CRYPTO_EX_DATA_FUNCS) *meth, void *obj, CRYPTO_EX_DATA *ad)
202 {
203 CRYPTO_EX_DATA_FUNCS *m;
204 void *ptr;
205 int i,max;
206
207 ad->sk=NULL;
208 if (meth != NULL)
209 {
210 max=sk_CRYPTO_EX_DATA_FUNCS_num(meth);
211 for (i=0; i<max; i++)
212 {
213 m=sk_CRYPTO_EX_DATA_FUNCS_value(meth,i);
214 if ((m != NULL) && (m->new_func != NULL))
215 {
216 ptr=CRYPTO_get_ex_data(ad,i);
217 m->new_func(obj,ptr,ad,i,m->argl,m->argp);
218 }
219 }
220 }
221 }
222
223IMPLEMENT_STACK_OF(CRYPTO_EX_DATA_FUNCS)
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