/* 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