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
|
/*
* uhub - A tiny ADC p2p connection hub
* Copyright (C) 2007-2012, Jan Vidar Krey
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "uhub.h"
#include "network/common.h"
static int is_blocked_or_interrupted()
{
int err = net_error();
return
#ifdef WINSOCK
err == WSAEWOULDBLOCK
#else
err == EWOULDBLOCK
#endif
|| err == EINTR;
}
ssize_t net_con_send(struct net_connection* con, const void* buf, size_t len)
{
int ret;
#ifdef SSL_SUPPORT
if (!con->ssl)
{
#endif
ret = net_send(con->sd, buf, len, UHUB_SEND_SIGNAL);
if (ret == -1)
{
if (is_blocked_or_interrupted())
return 0;
return -1;
}
#ifdef SSL_SUPPORT
}
else
{
ret = net_ssl_send(con, buf, len);
}
#endif /* SSL_SUPPORT */
return ret;
}
ssize_t net_con_recv(struct net_connection* con, void* buf, size_t len)
{
int ret;
#ifdef SSL_SUPPORT
if (!con->ssl)
{
#endif
ret = net_recv(con->sd, buf, len, 0);
if (ret == -1)
{
if (is_blocked_or_interrupted())
return 0;
return -net_error();
}
else if (ret == 0)
{
return -1;
}
#ifdef SSL_SUPPORT
}
else
{
ret = net_ssl_recv(con, buf, len);
}
#endif /* SSL_SUPPORT */
return ret;
}
ssize_t net_con_peek(struct net_connection* con, void* buf, size_t len)
{
int ret = net_recv(con->sd, buf, len, MSG_PEEK);
if (ret == -1)
{
if (is_blocked_or_interrupted())
return 0;
return -net_error();
}
else if (ret == 0)
return -1;
return ret;
}
#ifdef SSL_SUPPORT
int net_con_is_ssl(struct net_connection* con)
{
return !!con->ssl;
}
#endif /* SSL_SUPPORT */
int net_con_get_sd(struct net_connection* con)
{
return con->sd;
}
void* net_con_get_ptr(struct net_connection* con)
{
return con->ptr;
}
void net_con_destroy(struct net_connection* con)
{
#ifdef SSL_SUPPORT
if (con->ssl)
net_ssl_destroy(con);
#endif
hub_free(con);
}
void net_con_callback(struct net_connection* con, int events)
{
if (con->flags & NET_CLEANUP)
return;
if (events == NET_EVENT_TIMEOUT)
{
LOG_TRACE("net_con_callback(%p, TIMEOUT)", con);
con->callback(con, events, con->ptr);
return;
}
#ifdef SSL_SUPPORT
if (con->ssl)
net_ssl_callback(con, events);
else
#endif
con->callback(con, events, con->ptr);
}
|