#include <assert.h>

#include <ctype.h>

#include <dirent.h>

#include <errno.h>

#include <fcntl.h>

#include <paths.h>

#include <stdlib.h>

#include <unistd.h>

#include <not-cancel.h>

#include "pty-private.h"

#if HAVE_PT_CHOWN

/* Close all file descriptors except the one specified.  */

static void

close_all_fds (void)

{

  DIR *dir = __opendir ("/proc/self/fd");

  if (dir != NULL)

    {

      struct dirent64 *d;

      while ((d = __readdir64 (dir)) != NULL)

	if (isdigit (d->d_name[0]))

	  {

	    char *endp;

	    long int fd = strtol (d->d_name, &endp, 10);

	    if (*endp == '\0' && fd != PTY_FILENO && fd != dirfd (dir))

	      __close_nocancel_nostatus (fd);

	  }

      __closedir (dir);

      int nullfd = __open_nocancel (_PATH_DEVNULL, O_RDONLY);

      assert (nullfd == STDIN_FILENO);

      nullfd = __open_nocancel (_PATH_DEVNULL, O_WRONLY);

      assert (nullfd == STDOUT_FILENO);

      __dup2 (STDOUT_FILENO, STDERR_FILENO);

    }

}

# define CLOSE_ALL_FDS() close_all_fds()

#endif

#include <sysdeps/unix/grantpt.c>