doc/posix-functions/ioctl.texi

   1 @node ioctl
   2 @section @code{ioctl}
   3 @findex ioctl
   4
   5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/ioctl.html}
   6
   7 LSB specification:
   8 @itemize
   9 @item
  10 @url{https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-ioctl-2.html}
  11 @item
  12 @url{https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-ttyio-2.html}
  13 @item
  14 @url{https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-sockio-2.html}
  15 @end itemize
  16
  17 Gnulib module: ioctl
  18
  19 Portability problems fixed by Gnulib:
  20 @itemize
  21 @item
  22 On Windows platforms (excluding Cygwin), @code{ioctl} is called
  23 @code{ioctlsocket}, and error codes from this function are not placed in
  24 @code{errno}, and @code{WSAGetLastError} must be used instead.
  25 @item
  26 The second parameter is of type @code{unsigned long} rather than @code{int}
  27 on some platforms:
  28 glibc 2.26, Mac OS X 10.13, FreeBSD 11.0, NetBSD 9.0, OpenBSD 6.7, Haiku 2017.
  29 @end itemize
  30
  31 Portability problems not fixed by Gnulib:
  32 @itemize
  33 @item
  34 Most @code{ioctl} requests are platform and hardware specific.
  35 @end itemize