udp_socket.c
2.15 KB
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
/**
* \file
*
* \author Georg Hopp
*
* \copyright
* Copyright © 2014 Georg Hopp
*
* 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 <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include "tr/socket.h"
#include "tr/interface/socket.h"
#include "tr/logger.h"
#include "trbase.h"
static
int
udpSocketCtor(void * _this, va_list * params)
{
TR_Socket this = _this;
TR_PARENTCALL(_this, TR_Class, ctor, params);
this->type = SOCK_DGRAM;
return 0;
}
static
TR_RemoteData
udpSocketRecv(TR_Socket this, size_t size)
{
TR_RemoteData rdata;
struct sockaddr_in addr;
socklen_t addrlen = this->addrlen;
unsigned char buffer[size];
ssize_t received;
received = recvfrom(
this->handle,
buffer,
size,
this->flags,
(struct sockaddr *)&addr,
&addrlen);
if (-1 == received) {
perror("recvfrom");
} else {
rdata = TR_new(TR_RemoteData, &addr, addrlen);
TR_remoteDataSetData(rdata, buffer, received);
}
return rdata;
}
static
ssize_t
udpSocketSend(TR_Socket this, TR_RemoteData data)
{
ssize_t send;
send = sendto(
this->handle,
data->data,
data->ndata,
this->flags,
&(data->socket->addr.info),
data->socket->addrlen);
if (-1 == send) {
perror("sendto");
}
return send;
}
TR_INIT_IFACE(TR_Class, udpSocketCtor, NULL, NULL);
TR_INIT_IFACE(TR_Socket, NULL, NULL, udpSocketRecv, udpSocketSend);
TR_CREATE_CLASS(
TR_UdpSocket,
TR_Socket,
NULL,
TR_IF(TR_Class),
TR_IF(TR_Socket));
// vim: set ts=4 sw=4: