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
179
180
181
182
183
184
185
186
|
/*
Copyright (C) 2012 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <glib.h>
#include "spice-util.h"
#include "bio-gio.h"
#if OPENSSL_VERSION_NUMBER < 0x10100000 || \
(defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x20700000)
static BIO_METHOD one_static_bio;
static int BIO_meth_set_read(BIO_METHOD *biom,
int (*bread) (BIO *, char *, int))
{
biom->bread = bread;
return 1;
}
static int BIO_meth_set_write(BIO_METHOD *biom,
int (*bwrite) (BIO *, const char *, int))
{
biom->bwrite = bwrite;
return 1;
}
static int BIO_meth_set_puts(BIO_METHOD *biom,
int (*bputs) (BIO *, const char *))
{
biom->bputs = bputs;
return 1;
}
static int BIO_meth_set_ctrl(BIO_METHOD *biom,
long (*ctrl) (BIO *, int, long, void *))
{
biom->ctrl = ctrl;
return 1;
}
#define BIO_TYPE_START 128
static int BIO_get_new_index(void)
{
static int bio_index = BIO_TYPE_START;
return bio_index++;
}
static void BIO_set_init(BIO *a, int init)
{
a->init = init;
}
static void BIO_set_data(BIO *a, void *ptr)
{
a->ptr = ptr;
}
static void *BIO_get_data(BIO *a)
{
return a->ptr;
}
static BIO_METHOD *BIO_meth_new(int type, const char *name)
{
BIO_METHOD *biom = &one_static_bio;
biom->type = type;
biom->name = name;
return biom;
}
static void BIO_meth_free(BIO_METHOD *biom)
{
}
#endif
static long bio_gio_ctrl(G_GNUC_UNUSED BIO *b,
int cmd,
G_GNUC_UNUSED long num,
G_GNUC_UNUSED void *ptr)
{
return (cmd == BIO_CTRL_FLUSH);
}
static int bio_gio_write(BIO *bio, const char *in, int inl)
{
GOutputStream *stream;
gssize ret;
GError *error = NULL;
stream = g_io_stream_get_output_stream(BIO_get_data(bio));
ret = g_pollable_output_stream_write_nonblocking(G_POLLABLE_OUTPUT_STREAM(stream),
in, inl, NULL, &error);
BIO_clear_retry_flags(bio);
if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
BIO_set_retry_write(bio);
if (error != NULL) {
g_warning("%s", error->message);
g_clear_error(&error);
}
return ret;
}
static int bio_gio_read(BIO *bio, char *out, int outl)
{
GInputStream *stream;
gssize ret;
GError *error = NULL;
stream = g_io_stream_get_input_stream(BIO_get_data(bio));
ret = g_pollable_input_stream_read_nonblocking(G_POLLABLE_INPUT_STREAM(stream),
out, outl, NULL, &error);
BIO_clear_retry_flags(bio);
if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
BIO_set_retry_read(bio);
else if (error != NULL)
g_warning("%s", error->message);
g_clear_error(&error);
return ret;
}
static int bio_gio_puts(BIO *bio, const char *str)
{
int n, ret;
n = strlen(str);
ret = bio_gio_write(bio, str, n);
return ret;
}
static BIO_METHOD *bio_gio_method;
G_GNUC_INTERNAL
BIO* bio_new_giostream(GIOStream *stream)
{
BIO *bio;
if (!bio_gio_method) {
bio_gio_method = BIO_meth_new(BIO_get_new_index() |
BIO_TYPE_SOURCE_SINK,
"gio stream");
if (!bio_gio_method)
return NULL;
if (!BIO_meth_set_write(bio_gio_method, bio_gio_write) ||
!BIO_meth_set_read(bio_gio_method, bio_gio_read) ||
!BIO_meth_set_puts(bio_gio_method, bio_gio_puts) ||
!BIO_meth_set_ctrl(bio_gio_method, bio_gio_ctrl)) {
BIO_meth_free(bio_gio_method);
bio_gio_method = NULL;
return NULL;
}
}
bio = BIO_new(bio_gio_method);
if (!bio)
return NULL;
BIO_set_init(bio, 1);
BIO_set_data(bio, stream);
return bio;
}
|
