1  /* Control device.  Linux generic implementation.
       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 <stdarg.h>
      20  #include <sys/ioctl.h>
      21  #include <sysdep.h>
      22  #include <internal-ioctl.h>
      23  
      24  int
      25  __ioctl (int fd, unsigned long int request, ...)
      26  {
      27    va_list args;
      28    va_start (args, request);
      29    void *arg = va_arg (args, void *);
      30    va_end (args);
      31  
      32    int r;
      33    if (!__ioctl_arch (&r, fd, request, arg))
      34      {
      35        r = INTERNAL_SYSCALL_CALL (ioctl, fd, request, arg);
      36        if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (r)))
      37  	{
      38  	  __set_errno (-r);
      39  	  return -1;
      40  	}
      41      }
      42    return r;
      43  }
      44  libc_hidden_def (__ioctl)
      45  weak_alias (__ioctl, ioctl)
      46  
      47  #if __TIMESIZE != 64
      48  strong_alias (__ioctl, __ioctl_time64)
      49  #endif