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authorryker <>1998-10-05 20:13:14 +0000
committerryker <>1998-10-05 20:13:14 +0000
commitaeeae06a79815dc190061534d47236cec09f9e32 (patch)
tree851692b9c2f9c04f077666855641900f19fdb217 /src/lib/libcrypto/ex_data.c
parenta4f79641824cbf9f60ca9d1168d1fcc46717a82a (diff)
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Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
Diffstat (limited to 'src/lib/libcrypto/ex_data.c')
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1 files changed, 236 insertions, 0 deletions
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 "buffer.h"
62#include "bio.h"
63#include "lhash.h"
64#include "cryptlib.h"
65
66int CRYPTO_get_ex_new_index(idx,skp,argl,argp,new_func,dup_func,free_func)
67int idx;
68STACK **skp;
69long argl;
70char *argp;
71int (*new_func)();
72int (*dup_func)();
73void (*free_func)();
74 {
75 CRYPTO_EX_DATA_FUNCS *a;
76
77 if (*skp == NULL)
78 *skp=sk_new_null();
79 if (*skp == NULL)
80 {
81 CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE);
82 return(-1);
83 }
84 a=(CRYPTO_EX_DATA_FUNCS *)Malloc(sizeof(CRYPTO_EX_DATA_FUNCS));
85 if (a == NULL)
86 {
87 CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE);
88 return(-1);
89 }
90 a->argl=argl;
91 a->argp=argp;
92 a->new_func=new_func;
93 a->dup_func=dup_func;
94 a->free_func=free_func;
95 while (sk_num(*skp) <= idx)
96 {
97 if (!sk_push(*skp,NULL))
98 {
99 CRYPTOerr(CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX,ERR_R_MALLOC_FAILURE);
100 Free(a);
101 return(-1);
102 }
103 }
104 sk_value(*skp,idx)=(char *)a;
105 return(idx);
106 }
107
108int CRYPTO_set_ex_data(ad,idx,val)
109CRYPTO_EX_DATA *ad;
110int idx;
111char *val;
112 {
113 int i;
114
115 if (ad->sk == NULL)
116 {
117 if ((ad->sk=sk_new_null()) == NULL)
118 {
119 CRYPTOerr(CRYPTO_F_CRYPTO_SET_EX_DATA,ERR_R_MALLOC_FAILURE);
120 return(0);
121 }
122 }
123 i=sk_num(ad->sk);
124
125 while (i <= idx)
126 {
127 if (!sk_push(ad->sk,NULL))
128 {
129 CRYPTOerr(CRYPTO_F_CRYPTO_SET_EX_DATA,ERR_R_MALLOC_FAILURE);
130 return(0);
131 }
132 i++;
133 }
134 sk_value(ad->sk,idx)=val;
135 return(1);
136 }
137
138char *CRYPTO_get_ex_data(ad,idx)
139CRYPTO_EX_DATA *ad;
140int idx;
141 {
142 if (ad->sk == NULL)
143 return(0);
144 else if (idx >= sk_num(ad->sk))
145 return(0);
146 else
147 return(sk_value(ad->sk,idx));
148 }
149
150/* The callback is called with the 'object', which is the origional data object
151 * being duplicated, a pointer to the
152 * 'new' object to be inserted, the index, and the argi/argp
153 */
154int CRYPTO_dup_ex_data(meth,to,from)
155STACK *meth;
156CRYPTO_EX_DATA *to,*from;
157 {
158 int i,j,m,r;
159 CRYPTO_EX_DATA_FUNCS *mm;
160 char *from_d;
161
162 if (meth == NULL) return(1);
163 if (from->sk == NULL) return(1);
164 m=sk_num(meth);
165 j=sk_num(from->sk);
166 for (i=0; i<j; i++)
167 {
168 from_d=CRYPTO_get_ex_data(from,i);
169 if (i < m)
170 {
171 mm=(CRYPTO_EX_DATA_FUNCS *)sk_value(meth,i);
172 if (mm->dup_func != NULL)
173 r=mm->dup_func(to,from,(char **)&from_d,i,
174 mm->argl,mm->argp);
175 }
176 CRYPTO_set_ex_data(to,i,from_d);
177 }
178 return(1);
179 }
180
181/* Call each free callback */
182void CRYPTO_free_ex_data(meth,obj,ad)
183STACK *meth;
184char *obj;
185CRYPTO_EX_DATA *ad;
186 {
187 CRYPTO_EX_DATA_FUNCS *m;
188 char *ptr;
189 int i,max;
190
191 if (meth != NULL)
192 {
193 max=sk_num(meth);
194 for (i=0; i<max; i++)
195 {
196 m=(CRYPTO_EX_DATA_FUNCS *)sk_value(meth,i);
197 if ((m != NULL) && (m->free_func != NULL))
198 {
199 ptr=CRYPTO_get_ex_data(ad,i);
200 m->free_func(obj,ptr,ad,i,m->argl,m->argp);
201 }
202 }
203 }
204 if (ad->sk != NULL)
205 {
206 sk_free(ad->sk);
207 ad->sk=NULL;
208 }
209 }
210
211void CRYPTO_new_ex_data(meth,obj,ad)
212STACK *meth;
213char *obj;
214CRYPTO_EX_DATA *ad;
215 {
216 CRYPTO_EX_DATA_FUNCS *m;
217 char *ptr;
218 int i,max;
219
220 ad->sk=NULL;
221 if (meth != NULL)
222 {
223 max=sk_num(meth);
224 for (i=0; i<max; i++)
225 {
226 m=(CRYPTO_EX_DATA_FUNCS *)sk_value(meth,i);
227 if ((m != NULL) && (m->new_func != NULL))
228 {
229 ptr=CRYPTO_get_ex_data(ad,i);
230 m->new_func(obj,ptr,ad,i,m->argl,m->argp);
231 }
232 }
233 }
234 }
235
236