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
|
/*
20131117
Jan Mojzis
Public domain.
*/
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "hasipv6.h"
#include "blocking.h"
#include "e.h"
#include "xsocket.h"
int xsocket_tcp(int type) {
int s;
#ifdef HASIPV6
int opt = 1;
#endif
if (type == XSOCKET_V6) {
#ifdef HASIPV6
s = socket(PF_INET6, SOCK_STREAM, 0);
if (s == -1) return -1;
if (fcntl(s, F_SETFD, 1) == -1) { close(s); return -1; }
if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof opt) == -1) { close(s); return -1; }
blocking_disable(s);
return s;
#endif
errno = EPROTONOSUPPORT;
return -1;
}
if (type == XSOCKET_V4) {
s = socket(PF_INET, SOCK_STREAM, 0);
if (s == -1) return -1;
if (fcntl(s, F_SETFD, 1) == -1) { close(s); return -1; }
blocking_disable(s);
return s;
}
errno = EPROTO;
return -1;
}
|
