options.h

不用说了吧

/* options.h

   Copyright (C) 2001 Free Software Foundation, Inc.

   Written by Marcus Brinkmann.

   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 2
   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, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301 USA. */

#ifndef IFCONFIG_OPTIONS_H
#define IFCONFIG_OPTIONS_H

#include <sys/types.h>
#include <sys/socket.h>

struct ifconfig *parse_opt_new_ifs (char *name);

/* One per interface mentioned on the command line.  */
struct ifconfig
{
  char *name;
  int valid;
#define IF_VALID_SYSTEM		0x001
  struct system_ifconfig *system;
#define IF_VALID_FORMAT		0x002
  const char *format;
#define IF_VALID_AF		0x004
  sa_family_t af;
#define IF_VALID_ADDR		0x008
  char *address;
#define IF_VALID_NETMASK	0x010
  char *netmask;
#define IF_VALID_DSTADDR	0x020
  char *dstaddr;
#define IF_VALID_BRDADDR	0x040
  char *brdaddr;
#define IF_VALID_MTU		0x080
  int mtu;
#define IF_VALID_METRIC		0x100
  int metric;
};

struct format
{
  const char *name;
  const char *templ;
};

extern struct format formats[];

/* The name of the program, as invoked on the command line.  */
extern char *program_name;

/* Array of interfaces mentioned on the command line.  */
extern struct ifconfig *ifs;
extern int nifs;

/* Be verbose about what we do.  */
extern int verbose;

void usage (int err);
void parse_opt_set_address (struct ifconfig *ifp, char *addr);
void parse_opt_set_brdaddr (struct ifconfig *ifp, char *addr);
void parse_opt_set_dstaddr (struct ifconfig *ifp, char *addr);
void parse_opt_set_netmask (struct ifconfig *ifp, char *addr);
void parse_opt_set_mtu (struct ifconfig *ifp, char *addr);
void parse_opt_set_metric (struct ifconfig *ifp, char *addr);
void parse_opt_set_default_format (const char *format);
void parse_opt_finalize (struct ifconfig *ifp);

void parse_opt (int argc, char *argv[]);

#endif