1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "bio_lcl.h"
#include <internal/thread_once.h>
CRYPTO_RWLOCK *bio_type_lock = NULL;
static CRYPTO_ONCE bio_type_init = CRYPTO_ONCE_STATIC_INIT;
DEFINE_RUN_ONCE_STATIC(do_bio_type_init)
{
bio_type_lock = CRYPTO_THREAD_lock_new();
return bio_type_lock != NULL;
}
int BIO_get_new_index()
{
static int bio_count = BIO_TYPE_START;
int newval;
if (!RUN_ONCE(&bio_type_init, do_bio_type_init)) {
BIOerr(BIO_F_BIO_GET_NEW_INDEX, ERR_R_MALLOC_FAILURE);
return -1;
}
if (!CRYPTO_atomic_add(&bio_count, 1, &newval, bio_type_lock))
return -1;
return newval;
}
BIO_METHOD *BIO_meth_new(int type, const char *name)
{
BIO_METHOD *biom = OPENSSL_zalloc(sizeof(BIO_METHOD));
if (biom != NULL) {
biom->type = type;
biom->name = name;
}
return biom;
}
void BIO_meth_free(BIO_METHOD *biom)
{
OPENSSL_free(biom);
}
int (*BIO_meth_get_write(BIO_METHOD *biom)) (BIO *, const char *, int)
{
return biom->bwrite;
}
int BIO_meth_set_write(BIO_METHOD *biom,
int (*bwrite) (BIO *, const char *, int))
{
biom->bwrite = bwrite;
return 1;
}
int (*BIO_meth_get_read(BIO_METHOD *biom)) (BIO *, char *, int)
{
return biom->bread_old;
}
int (*BIO_meth_get_read_ex(BIO_METHOD *biom)) (BIO *, char *, size_t, size_t *)
{
return biom->bread;
}
/* Conversion for old style bread to new style */
int bread_conv(BIO *bio, char *out, size_t outl, size_t *read)
{
int ret;
if (outl > INT_MAX)
return 0;
ret = bio->method->bread_old(bio, out, (int)outl);
if (ret <= 0) {
*read = 0;
return ret;
}
*read = (size_t)ret;
return 1;
}
int BIO_meth_set_read(BIO_METHOD *biom,
int (*bread) (BIO *, char *, int))
{
biom->bread_old = bread;
biom->bread = bread_conv;
return 1;
}
int BIO_meth_set_read_ex(BIO_METHOD *biom,
int (*bread) (BIO *, char *, size_t, size_t *))
{
biom->bread = bread;
return 1;
}
int (*BIO_meth_get_puts(BIO_METHOD *biom)) (BIO *, const char *)
{
return biom->bputs;
}
int BIO_meth_set_puts(BIO_METHOD *biom,
int (*bputs) (BIO *, const char *))
{
biom->bputs = bputs;
return 1;
}
int (*BIO_meth_get_gets(BIO_METHOD *biom)) (BIO *, char *, int)
{
return biom->bgets;
}
int BIO_meth_set_gets(BIO_METHOD *biom,
int (*bgets) (BIO *, char *, int))
{
biom->bgets = bgets;
return 1;
}
long (*BIO_meth_get_ctrl(BIO_METHOD *biom)) (BIO *, int, long, void *)
{
return biom->ctrl;
}
int BIO_meth_set_ctrl(BIO_METHOD *biom,
long (*ctrl) (BIO *, int, long, void *))
{
biom->ctrl = ctrl;
return 1;
}
int (*BIO_meth_get_create(BIO_METHOD *biom)) (BIO *)
{
return biom->create;
}
int BIO_meth_set_create(BIO_METHOD *biom, int (*create) (BIO *))
{
biom->create = create;
return 1;
}
int (*BIO_meth_get_destroy(BIO_METHOD *biom)) (BIO *)
{
return biom->destroy;
}
int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy) (BIO *))
{
biom->destroy = destroy;
return 1;
}
long (*BIO_meth_get_callback_ctrl(BIO_METHOD *biom)) (BIO *, int, bio_info_cb *)
{
return biom->callback_ctrl;
}
int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
long (*callback_ctrl) (BIO *, int,
bio_info_cb *))
{
biom->callback_ctrl = callback_ctrl;
return 1;
}
|
