kc3-lang/gnulib/lib/ioctl.c

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• Hash : 6110d07d
  Author :
  Date : 2011-04-18T02:34:47
  

  ioctl: Remove link dependency on native Windows.
  
  * lib/fd-hook.h: Renamed from lib/close-hook.h.
  (gl_close_fn, gl_ioctl_fn): New types.
  (struct fd_hook): Renamed from struct close_hook. Change type of
  private_close_fn field. Add private_ioctl_fn field.
  (close_hook_fn): Add parameter for primary close method.
  (execute_close_hooks, execute_all_close_hooks): Likewise.
  (ioctl_hook_fn): New type.
  (execute_ioctl_hooks, execute_all_ioctl_hooks): New declarations.
  (register_fd_hook): Renamed from register_close_hook. Add ioctl_hook
  argument.
  (unregister_fd_hook): Renamed from unregister_close_hook.
  * lib/fd-hook.c: Renamed from lib/close-hook.c.
  Don't include <unistd.h>.
  (close): Remove undef.
  (anchor): Update.
  (execute_close_hooks): Add argument for primary close method.
  (execute_all_close_hooks): Likewise.
  (execute_ioctl_hooks, execute_all_ioctl_hooks): New functions.
  (register_fd_hook): Renamed from register_close_hook. Add ioctl_hook
  argument. Allow each argument to be NULL.
  (unregister_fd_hook): Renamed from unregister_close_hook.
  * lib/close.c (rpl_close): Pass 'close' function pointer to
  execute_all_close_hooks.
  * lib/ioctl.c: Include <errno.h>, fd-hook.h.
  (primary_ioctl): New function.
  (ioctl): Don't call ioctlsocket here. Instead, call
  execute_all_ioctl_hooks.
  * lib/sockets.c (close_fd_maybe_socket): Add argument for primary
  close method.
  (ioctl_fd_maybe_socket): New function, with code from lib/ioctl.c.
  (fd_sockets_hook): Renamed from close_sockets_hook.
  (gl_sockets_startup, gl_sockets_cleanup): Update.
  * modules/fd-hook: Renamed from modules/close-hook. Update.
  * modules/close (Depends-on): Add fd-hook, remove close-hook.
  * modules/sockets (Depends-on): Likewise.
  * modules/ioctl (Depends-on): Add fd-hook.
  * tests/test-nonblocking.c (main): Use GNULIB_TEST_SOCKET, not
  GNULIB_SOCKET.
  

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• lib/ioctl.c

• /* ioctl.c --- wrappers for Windows ioctl function
  
     Copyright (C) 2008-2011 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 <http://www.gnu.org/licenses/>.  */
  
  /* Written by Paolo Bonzini */
  
  #include <config.h>
  
  #include <sys/ioctl.h>
  
  #include <stdarg.h>
  
  #if HAVE_IOCTL
  
  /* Provide a wrapper with the POSIX prototype.  */
  # undef ioctl
  int
  rpl_ioctl (int fd, int request, ... /* {void *,char *} arg */)
  {
    void *buf;
    va_list args;
  
    va_start (args, request);
    buf = va_arg (args, void *);
    va_end (args);
  
    /* Cast 'request' so that when the system's ioctl function takes a 64-bit
       request argument, the value gets zero-extended, not sign-extended.  */
    return ioctl (fd, (unsigned int) request, buf);
  }
  
  #else /* mingw */
  
  # include <errno.h>
  
  # include "fd-hook.h"
  
  static int
  primary_ioctl (int fd, int request, void *arg)
  {
    /* We don't support FIONBIO on pipes here.  If you want to make pipe
       fds non-blocking, use the gnulib 'nonblocking' module, until
       gnulib implements fcntl F_GETFL / F_SETFL with O_NONBLOCK.  */
  
    errno = ENOSYS;
    return -1;
  }
  
  int
  ioctl (int fd, int request, ... /* {void *,char *} arg */)
  {
    void *arg;
    va_list args;
  
    va_start (args, request);
    arg = va_arg (args, void *);
    va_end (args);
  
  # if WINDOWS_SOCKETS
    return execute_all_ioctl_hooks (primary_ioctl, fd, request, arg);
  # else
    return primary_ioctl (fd, request, arg);
  # endif
  }
  
  #endif
  

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