kc3-lang/gnulib/tests/test-login_tty.c

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• Hash : 9041103e
  Author :
  Date : 2023-01-21T21:13:20
  

  login_tty: Ensure declaration in <utmp.h>.
  
  * tests/test-utmp-c++.cc: New file.
  * modules/utmp-c++-tests: New file.
  
  * tests/test-utmp.c: New file.
  * modules/utmp-tests: New file.
  
  * lib/login_tty.c: Include <utmp.h>.
  * m4/login_tty.m4: New file.
  (gl_FUNC_LOGIN_TTY): Moved here from m4/pty.m4. Set HAVE_LOGIN_TTY.
  * m4/pty.m4 (gl_FUNC_LOGIN_TTY): Moved to m4/login_tty.m4.
  * modules/login_tty (Files): Add m4/login_tty.m4.
  (Depends-on): Add utmp. Remove pty. Update condition.
  (configure.ac): Update condition. Invoke gl_UTMP_MODULE_INDICATOR
  instead of gl_PTY_MODULE_INDICATOR.
  (Include): List <utmp.h>.
  * doc/glibc-functions/login_tty.texi: Mark the include file diversity as
  fixed.
  * tests/test-login_tty.c: Include <utmp.h>. Don't declare login_tty
  here.
  
  * lib/utmp.in.h: New file.
  * m4/utmp_h.m4: New file.
  * modules/utmp: New file.
  * doc/glibc-headers/utmp.texi: New file.
  * doc/gnulib.texi (Glibc Header File Substitutes): Include it.
  

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• tests/test-login_tty.c

• /* Test of login_tty() function.
     Copyright (C) 2010-2023 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  /* Specification.  */
  #include <utmp.h>
  
  #include <errno.h>
  #include <pty.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <termios.h>
  #include <unistd.h>
  
  int
  main ()
  {
    int master;
    int slave;
  
    /* Open a pseudo-terminal, as a master-slave pair.  */
    {
      int res = openpty (&master, &slave, NULL, NULL, NULL);
      if (res != 0)
        {
          fprintf (stderr, "openpty returned %d\n", res);
          return 1;
        }
    }
  
    /* Create a new session and make it the controlling tty of this session.  */
    {
      int res = login_tty (slave);
      if (res < 0)
        {
          fprintf (stderr, "login_tty failed\n");
          return 1;
        }
    }
  
    /* From here on, we cannot use stderr for error messages any more.
       If a test fails, write error information into a file named 'err',
       then abort.  */
  
    /* Check that fd = 0, 1, 2 are now open to the controlling terminal for the
       current process and that it is a session of its own.  */
    {
      int fd;
      for (fd = 0; fd < 3; fd++)
        if (!(tcgetpgrp (fd) == getpid ()))
          {
            freopen ("err", "w+", stderr);
            fprintf (stderr, "tcgetpgrp(%d) = %ld whereas getpid() = %ld\n",
                     fd, (long) tcgetpgrp (fd), (long) getpid ());
            fflush (stderr);
            abort ();
          }
      for (fd = 0; fd < 3; fd++)
        {
          pid_t sid = tcgetsid (fd);
          if (sid == -1)
            {
              if (!(errno == ENOSYS))
                {
                  freopen ("err", "w+", stderr);
                  fprintf (stderr, "tcgetsid(%d) = -1 and errno = %d\n",
                           fd, errno);
                  fflush (stderr);
                  abort ();
                }
            }
          else
            {
              if (!(sid == getpid ()))
                {
                  freopen ("err", "w+", stderr);
                  fprintf (stderr, "tcgetsid(%d) = %ld whereas getpid() = %ld\n",
                           fd, (long) tcgetsid (fd), (long) getpid ());
                  fflush (stderr);
                  abort ();
                }
            }
        }
    }
  
    return 0;
  }
  

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