2008-06-10 12:32:15 -03:00
|
|
|
/* See LICENSE file for copyright and license details. */
|
2008-06-10 12:56:57 -03:00
|
|
|
#include "util.h"
|
2008-06-10 12:30:15 -03:00
|
|
|
#include <sys/types.h>
|
|
|
|
|
#include <sys/stat.h>
|
|
|
|
|
#include <fcntl.h>
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
#if !(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
|
|
|
|
|
#include <pty.h>
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
extern int ptm, pts;
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
getpty(void) {
|
|
|
|
|
char *ptsdev;
|
|
|
|
|
|
|
|
|
|
#if defined(_GNU_SOURCE)
|
|
|
|
|
ptm = getpt();
|
|
|
|
|
#elif _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
|
|
|
|
|
ptm = posix_openpt(O_RDWR);
|
|
|
|
|
#else
|
|
|
|
|
ptm = open("/dev/ptmx", O_RDWR);
|
|
|
|
|
if(ptm == -1)
|
|
|
|
|
if(openpty(&ptm, &pts, NULL, NULL, NULL) == -1)
|
|
|
|
|
eprintn("error, cannot open pty");
|
|
|
|
|
#endif
|
|
|
|
|
#if defined(_XOPEN_SOURCE)
|
|
|
|
|
if(ptm != -1) {
|
|
|
|
|
if(grantpt(ptm) == -1)
|
|
|
|
|
eprintn("error, cannot grant access to pty");
|
|
|
|
|
if(unlockpt(ptm) == -1)
|
|
|
|
|
eprintn("error, cannot unlock pty");
|
|
|
|
|
ptsdev = ptsname(ptm);
|
|
|
|
|
if(!ptsdev)
|
|
|
|
|
eprintn("error, slave pty name undefined");
|
|
|
|
|
pts = open(ptsdev, O_RDWR);
|
|
|
|
|
if(pts == -1)
|
|
|
|
|
eprintn("error, cannot open slave pty");
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
eprintn("error, cannot open pty");
|
|
|
|
|
#endif
|
|
|
|
|
}
|
