1#include <unistd.h>
2#include <errno.h>
3#include <fcntl.h>
4#include "syscall.h"
5
6int pipe2(int fd[2], int flag)
7{
8	if (!flag) return pipe(fd);
9	int ret = __syscall(SYS_pipe2, fd, flag);
10	if (ret != -ENOSYS) return __syscall_ret(ret);
11	ret = pipe(fd);
12	if (ret) return ret;
13	if (flag & O_CLOEXEC) {
14		__syscall(SYS_fcntl, fd[0], F_SETFD, FD_CLOEXEC);
15		__syscall(SYS_fcntl, fd[1], F_SETFD, FD_CLOEXEC);
16	}
17	if (flag & O_NONBLOCK) {
18		__syscall(SYS_fcntl, fd[0], F_SETFL, O_NONBLOCK);
19		__syscall(SYS_fcntl, fd[1], F_SETFL, O_NONBLOCK);
20	}
21	return 0;
22}
23