1  /* Linux internal definitions for ioctl.
       2     Copyright (C) 2021-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library.  If not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <termios.h>
      20  
      21  /* The user-visible size of struct termios has changed.  Catch ioctl calls
      22     using the new-style struct termios, and translate them to old-style.  */
      23  static inline bool
      24  __ioctl_arch (int *r, int fd, unsigned long request, void *arg)
      25  {
      26    switch (request)
      27      {
      28      case TCGETS:
      29        *r = __tcgetattr (fd, (struct termios *) arg);
      30        break;
      31  
      32      case TCSETS:
      33        *r = __tcsetattr (fd, TCSANOW, (struct termios *) arg);
      34        break;
      35  
      36      case TCSETSW:
      37        *r = __tcsetattr (fd, TCSADRAIN, (struct termios *) arg);
      38        break;
      39  
      40      case TCSETSF:
      41        *r = __tcsetattr (fd, TCSAFLUSH, (struct termios *) arg);
      42        break;
      43  
      44      default:
      45        return false;
      46      }
      47    return true;
      48  }