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
|
#include <sys/socket.h>
#include <fcntl.h>
#include <errno.h>
#include "syscall.h"
int socketpair(int domain, int type, int protocol, int fd[2])
{
int r = socketcall(socketpair, domain, type, protocol, fd, 0, 0);
if (r<0 && (errno==EINVAL || errno==EPROTONOSUPPORT)
&& (type&(SOCK_CLOEXEC|SOCK_NONBLOCK))) {
r = socketcall(socketpair, domain,
type & ~(SOCK_CLOEXEC|SOCK_NONBLOCK),
protocol, fd, 0, 0);
if (r < 0) return r;
if (type & SOCK_CLOEXEC) {
__syscall(SYS_fcntl, fd[0], F_SETFD, FD_CLOEXEC);
__syscall(SYS_fcntl, fd[1], F_SETFD, FD_CLOEXEC);
}
if (type & SOCK_NONBLOCK) {
__syscall(SYS_fcntl, fd[0], F_SETFL, O_NONBLOCK);
__syscall(SYS_fcntl, fd[1], F_SETFL, O_NONBLOCK);
}
}
return r;
}
|
