sbin/ifconfig/prog_ops.h

   1 /*      $NetBSD: prog_ops.h,v 1.3 2010/12/13 21:48:01 pooka Exp $       */
   2
   3 /*
   4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef _PROG_OPS_H_
  30 #define _PROG_OPS_H_
  31
  32 #include <sys/types.h>
  33
  34 /* ifconfig is compiled outside of src/sbin/ifconfig too */
  35 #ifndef CRUNCHOPS
  36 struct prog_ops {
  37         int (*op_init)(void);
  38
  39         int (*op_socket)(int, int, int);
  40
  41         int (*op_ioctl)(int, unsigned long, ...);
  42         ssize_t (*op_read)(int, void *, size_t);
  43
  44         int (*op_close)(int);
  45 };
  46 extern const struct prog_ops prog_ops;
  47
  48 #define prog_init prog_ops.op_init
  49 #define prog_socket prog_ops.op_socket
  50 #define prog_ioctl prog_ops.op_ioctl
  51 #define prog_read prog_ops.op_read
  52 #define prog_close prog_ops.op_close
  53 #else
  54 #define prog_init ((int (*)(void))NULL)
  55 #define prog_socket socket
  56 #define prog_ioctl ioctl
  57 #define prog_read read
  58 #define prog_close close
  59 #endif
  60
  61 #endif /* _PROG_OPS_H_ */