usr/klibc/pty.c

/*
 * pty.c
 *
 * Basic Unix98 PTY functionality; assumes devpts mounted on /dev/pts
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <termios.h>
#include <sys/ioctl.h>

char *ptsname(int fd)
{
	static char buffer[32];	/* Big enough to hold even a 64-bit pts no */
	unsigned int ptyno;

	if (ioctl(fd, TIOCGPTN, &ptyno))
		return NULL;

	snprintf(buffer, sizeof buffer, "/dev/pts/%u", ptyno);

	return buffer;
}

int unlockpt(int fd)
{
	int unlock = 0;

	return ioctl(fd, TIOCSPTLCK, &unlock);
}
1	/*
2	* pty.c
3	*
4	* Basic Unix98 PTY functionality; assumes devpts mounted on /dev/pts
5	*/
6
7	#include <stdio.h>
8	#include <stdlib.h>
9	#include <unistd.h>
10	#include <termios.h>
11	#include <sys/ioctl.h>
12
13	char *ptsname(int fd)
14	{
15	static char buffer[32]; /* Big enough to hold even a 64-bit pts no */
16	unsigned int ptyno;
17
18	if (ioctl(fd, TIOCGPTN, &ptyno))
19	return NULL;
20
21	snprintf(buffer, sizeof buffer, "/dev/pts/%u", ptyno);
22
23	return buffer;
24	}
25
26	int unlockpt(int fd)
27	{
28	int unlock = 0;
29
30	return ioctl(fd, TIOCSPTLCK, &unlock);
31	}