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
|
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include <strings.h>
#include <errno.h>
#include "String.h"
#include "Socket.h"
#include "Exceptions.h"
#include "config.h"
#include "Input.h"
#include "Output.h"
Socket::Socket() throw (GeneralException) : Handle(socket(AF_INET, SOCK_STREAM, 0)), connected(false), listening(false) {
if (GetHandle() < 0) {
throw GeneralException("Error creating socket.");
}
}
Socket::Socket(int h) : Handle(h), connected(true), listening(false) { }
String Socket::GetName(void) {
return String("socket");
}
bool Socket::IsConnected(void) {
return connected;
}
bool Socket::IsListening(void) {
return listening;
}
bool Socket::CanRead(void) {
return connected;
}
bool Socket::CanWrite(void) {
return connected;
}
size_t Socket::WriteFile(Output & o) {
char c;
size_t s = 0;
while (!IsClosed()) {
s += read(&c, 1);
o.write(&c, 1);
}
return s;
}
size_t Socket::ReadFile(Input & i) {
char c;
size_t s = 0;
while (!i.IsClosed()) {
s += i.read(&c, 1);
write(&c, 1);
}
return s;
}
/***********************************************\
* Toute la suite n'est pas à décrire. Consulter *
* plutôt un document décrivant les sockets. *
\***********************************************/
bool Socket::SetLocal(String vhost, int port) {
struct hostent * localhostent;
struct in_addr localhostaddr;
struct sockaddr_in localsocketaddr;
memset((void *)&localhostaddr, 0, sizeof(localhostaddr));
if (vhost.strlen() != 0) {
if ((localhostent = gethostbyname(vhost.to_charp()))) {
memcpy((void *)&localhostaddr, localhostent->h_addr, sizeof(localhostaddr));
} else {
return false;
}
} else {
localhostaddr.s_addr = htonl(INADDR_ANY);
}
memset(&localsocketaddr, 0, sizeof(struct sockaddr_in));
localsocketaddr.sin_family = AF_INET;
localsocketaddr.sin_addr = localhostaddr;
localsocketaddr.sin_port = htons(port);
if (bind(GetHandle(), (struct sockaddr *) &localsocketaddr, sizeof(localsocketaddr)) < 0) {
return false;
} else {
return true;
}
}
bool Socket::Connect(String host, int port) {
struct hostent * remotehostent;
struct sockaddr_in remotesocketaddr;
if (!listening && !connected) {
if (!(remotehostent = gethostbyname(host.to_charp()))) {
return false;
}
remotesocketaddr.sin_family = AF_INET;
remotesocketaddr.sin_port = htons(port);
bcopy(remotehostent->h_addr, &remotesocketaddr.sin_addr, remotehostent->h_length);
if(connect(GetHandle(), (struct sockaddr *)&remotesocketaddr, sizeof(remotesocketaddr)) < 0) {
connected = true;
}
}
return connected;
}
bool Socket::Listen(void) {
if (!listening && !connected) {
if (listen(GetHandle(), 10)) {
listening = true;
}
}
return listening;
}
Socket Socket::Accept(void) {
struct sockaddr inaddr;
socklen_t inlen = sizeof(inaddr);
int h;
if ((h = accept(GetHandle(), &inaddr, &inlen)) < 0) {
return Socket();
} else {
return Socket(h);
}
}
|
