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
|
#include "socket.h"
#include <string.h>
#include <stdio.h>
#include <assert.h>
#if defined(_WIN32)
#error not implemented yet
#define WIN32_MEAN_AND_LEAN 1
#include <windows.h>
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/select.h>
#include <netdb.h>
#include <unistd.h>
#include <arpa/inet.h>
#endif
int SocketConnect(const char *host, short port)
{
struct addrinfo hints, *servinfo, *p;
int rv;
char portstr[6];
int sock;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
assert(snprintf(portstr, sizeof(portstr), "%hu", port) < (int) sizeof(portstr));
if ((rv = getaddrinfo(host, portstr, &hints, &servinfo)) != 0)
{
return -1;
}
for (p = servinfo; p != NULL; p = p->ai_next)
{
if ((sock = socket(p->ai_family, p->ai_socktype,
p->ai_protocol)) == -1)
{
continue;
}
if (connect(sock, p->ai_addr, p->ai_addrlen) == -1)
{
close(sock);
continue;
}
break;
}
freeaddrinfo(servinfo);
if (p == NULL)
{
return -1;
}
return sock;
}
int SocketDisconnect(int sock)
{
#ifdef _WIN32
return closesocket(sock);
#else
return close(sock);
#endif
}
int SocketSendAll(int sock, const char *buf, size_t *len)
{
size_t total = 0;
int rv;
size_t remaining = *len;
while (remaining > 0)
{
if ((rv = send(sock, buf+total, remaining, 0)) == -1)
{
break;
}
total += rv;
remaining -= rv;
}
*len = total;
return rv == -1 ? -1 : 0;
}
|
