1#include <stdlib.h>
2#include <sys/ioctl.h>
3#include <stdio.h>
4#include <fcntl.h>
5#include <errno.h>
6#include "libc.h"
7#include "syscall.h"
8
9int posix_openpt(int flags)
10{
11	return open("/dev/ptmx", flags);
12}
13
14int grantpt(int fd)
15{
16	return 0;
17}
18
19int unlockpt(int fd)
20{
21	int unlock = 0;
22	return ioctl(fd, TIOCSPTLCK, &unlock);
23}
24
25int __ptsname_r(int fd, char *buf, size_t len)
26{
27	int pty, err;
28	if (!buf) len = 0;
29	if ((err = __syscall(SYS_ioctl, fd, TIOCGPTN, &pty))) return -err;
30	if (snprintf(buf, len, "/dev/pts/%d", pty) >= len) return ERANGE;
31	return 0;
32}
33
34weak_alias(__ptsname_r, ptsname_r);
35