lib/command.h - quagga - Gitiles

 /*
  * Zebra configuration command interface routine
  * Copyright (C) 1997, 98 Kunihiro Ishiguro
  *
  * This file is part of GNU Zebra.
  *
  * GNU Zebra 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, or (at your
  * option) any later version.
  *
  * GNU Zebra 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 GNU Zebra; see the file COPYING.  If not, write to the
  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  * Boston, MA 02111-1307, USA.
  */

 #ifndef _ZEBRA_COMMAND_H
 #define _ZEBRA_COMMAND_H

 #include "vector.h"
 #include "vty.h"

 /* Host configuration variable */
 struct host
 {
   /* Host name of this router. */
   char *name;

   /* Password for vty interface. */
   char *password;
   char *password_encrypt;

   /* Enable password */
   char *enable;
   char *enable_encrypt;

   /* System wide terminal lines. */
   int lines;

   /* Log filename. */
   char *logfile;

   /* Log stdout. */
   u_char log_stdout;

   /* Log syslog. */
   u_char log_syslog;

   /* config file name of this host */
   char *config;

   /* Flags for services */
   int advanced;
   int encrypt;

   /* Banner configuration. */
   const char *motd;
 };

 /* There are some command levels which called from command node. */
 enum node_type
 {
   AUTH_NODE,			/* Authentication mode of vty interface. */
   VIEW_NODE,			/* View node. Default mode of vty interface. */
   AUTH_ENABLE_NODE,		/* Authentication mode for change enable. */
   ENABLE_NODE,			/* Enable node. */
   CONFIG_NODE,			/* Config node. Default mode of config file. */
   SERVICE_NODE, 		/* Service node. */
   DEBUG_NODE,			/* Debug node. */
   AAA_NODE,			/* AAA node. */
   KEYCHAIN_NODE,		/* Key-chain node. */
   KEYCHAIN_KEY_NODE,		/* Key-chain key node. */
   INTERFACE_NODE,		/* Interface mode node. */
   ZEBRA_NODE,			/* zebra connection node. */
   TABLE_NODE,			/* rtm_table selection node. */
   RIP_NODE,			/* RIP protocol mode node. */
   RIPNG_NODE,			/* RIPng protocol mode node. */
   BGP_NODE,			/* BGP protocol mode which includes BGP4+ */
   BGP_VPNV4_NODE,		/* BGP MPLS-VPN PE exchange. */
   BGP_IPV4_NODE,		/* BGP IPv4 unicast address family.  */
   BGP_IPV4M_NODE,		/* BGP IPv4 multicast address family.  */
   BGP_IPV6_NODE,		/* BGP IPv6 address family */
   OSPF_NODE,			/* OSPF protocol mode */
   OSPF6_NODE,			/* OSPF protocol for IPv6 mode */
   ISIS_NODE,			/* ISIS protocol mode */
   MASC_NODE,			/* MASC for multicast.  */
   IRDP_NODE,			/* ICMP Router Discovery Protocol mode. */
   IP_NODE,			/* Static ip route node. */
   ACCESS_NODE,			/* Access list node. */
   PREFIX_NODE,			/* Prefix list node. */
   ACCESS_IPV6_NODE,		/* Access list node. */
   PREFIX_IPV6_NODE,		/* Prefix list node. */
   AS_LIST_NODE,			/* AS list node. */
   COMMUNITY_LIST_NODE,		/* Community list node. */
   RMAP_NODE,			/* Route map node. */
   SMUX_NODE,			/* SNMP configuration node. */
   DUMP_NODE,			/* Packet dump node. */
   FORWARDING_NODE,		/* IP forwarding node. */
   VTY_NODE			/* Vty node. */
 };

 /* Node which has some commands and prompt string and configuration
    function pointer . */
 struct cmd_node
 {
   /* Node index. */
   enum node_type node;

   /* Prompt character at vty interface. */
   const char *prompt;

   /* Is this node's configuration goes to vtysh ? */
   int vtysh;

   /* Node's configuration write function */
   int (*func) (struct vty *);

   /* Vector of this node's command list. */
   vector cmd_vector;
 };

 /* Structure of command element. */
 struct cmd_element
 {
   const char *string;			/* Command specification by string. */
   int (*func) (struct cmd_element *, struct vty *, int, const char *[]);
   const char *doc;			/* Documentation of this command. */
   int daemon;                   /* Daemon to which this command belong. */
   vector strvec;		/* Pointing out each description vector. */
   unsigned int cmdsize;		/* Command index count. */
   char *config;			/* Configuration string */
   vector subconfig;		/* Sub configuration string */
 };

 /* Command description structure. */
 struct desc
 {
   const char *cmd;			/* Command string. */
   const char *str;			/* Command's description. */
 };

 /* Return value of the commands. */
 #define CMD_SUCCESS              0
 #define CMD_WARNING              1
 #define CMD_ERR_NO_MATCH         2
 #define CMD_ERR_AMBIGUOUS        3
 #define CMD_ERR_INCOMPLETE       4
 #define CMD_ERR_EXEED_ARGC_MAX   5
 #define CMD_ERR_NOTHING_TODO     6
 #define CMD_COMPLETE_FULL_MATCH  7
 #define CMD_COMPLETE_MATCH       8
 #define CMD_COMPLETE_LIST_MATCH  9
 #define CMD_SUCCESS_DAEMON      10

 /* Argc max counts. */
 #define CMD_ARGC_MAX   25

 /* Turn off these macros when uisng cpp with extract.pl */
 #ifndef VTYSH_EXTRACT_PL

 /* DEFUN for vty command interafce. Little bit hacky ;-). */
 #define DEFUN(funcname, cmdname, cmdstr, helpstr) \
   int funcname (struct cmd_element *, struct vty *, int, const char *[]); \
   struct cmd_element cmdname = \
   { \
     .string = cmdstr, \
     .func = funcname, \
     .doc = helpstr \
   }; \
   int funcname \
   (struct cmd_element *self, struct vty *vty, int argc, const char *argv[])

 /* DEFUN_NOSH for commands that vtysh should ignore */
 #define DEFUN_NOSH(funcname, cmdname, cmdstr, helpstr) \
   DEFUN(funcname, cmdname, cmdstr, helpstr)

 /* DEFSH for vtysh. */
 #define DEFSH(daemon, cmdname, cmdstr, helpstr) \
   struct cmd_element cmdname = \
   { \
     cmdstr, \
     NULL, \
     helpstr, \
     daemon \
   }; \

 /* DEFUN + DEFSH */
 #define DEFUNSH(daemon, funcname, cmdname, cmdstr, helpstr) \
   int funcname (struct cmd_element *, struct vty *, int, const char *[]); \
   struct cmd_element cmdname = \
   { \
     cmdstr, \
     funcname, \
     helpstr, \
     daemon \
   }; \
   int funcname \
   (struct cmd_element *self, struct vty *vty, int argc, const char *argv[])

 /* ALIAS macro which define existing command's alias. */
 #define ALIAS(funcname, cmdname, cmdstr, helpstr) \
   struct cmd_element cmdname = \
   { \
     cmdstr, \
     funcname, \
     helpstr \
   };

 #endif /* VTYSH_EXTRACT_PL */

 /* Some macroes */
 #define CMD_OPTION(S)   ((S[0]) == '[')
 #define CMD_VARIABLE(S) (((S[0]) >= 'A' && (S[0]) <= 'Z') || ((S[0]) == '<'))
 #define CMD_VARARG(S)   ((S[0]) == '.')
 #define CMD_RANGE(S)	((S[0] == '<'))

 #define CMD_IPV4(S)	   ((strcmp ((S), "A.B.C.D") == 0))
 #define CMD_IPV4_PREFIX(S) ((strcmp ((S), "A.B.C.D/M") == 0))
 #define CMD_IPV6(S)        ((strcmp ((S), "X:X::X:X") == 0))
 #define CMD_IPV6_PREFIX(S) ((strcmp ((S), "X:X::X:X/M") == 0))

 /* Common descriptions. */
 #define SHOW_STR "Show running system information\n"
 #define IP_STR "IP information\n"
 #define IPV6_STR "IPv6 information\n"
 #define NO_STR "Negate a command or set its defaults\n"
 #define CLEAR_STR "Reset functions\n"
 #define RIP_STR "RIP information\n"
 #define BGP_STR "BGP information\n"
 #define OSPF_STR "OSPF information\n"
 #define NEIGHBOR_STR "Specify neighbor router\n"
 #define DEBUG_STR "Debugging functions (see also 'undebug')\n"
 #define UNDEBUG_STR "Disable debugging functions (see also 'debug')\n"
 #define ROUTER_STR "Enable a routing process\n"
 #define AS_STR "AS number\n"
 #define MBGP_STR "MBGP information\n"
 #define MATCH_STR "Match values from routing table\n"
 #define SET_STR "Set values in destination routing protocol\n"
 #define OUT_STR "Filter outgoing routing updates\n"
 #define IN_STR  "Filter incoming routing updates\n"
 #define V4NOTATION_STR "specify by IPv4 address notation(e.g. 0.0.0.0)\n"
 #define OSPF6_NUMBER_STR "Specify by number\n"
 #define INTERFACE_STR "Interface infomation\n"
 #define IFNAME_STR "Interface name(e.g. ep0)\n"
 #define IP6_STR "IPv6 Information\n"
 #define OSPF6_STR "Open Shortest Path First (OSPF) for IPv6\n"
 #define OSPF6_ROUTER_STR "Enable a routing process\n"
 #define OSPF6_INSTANCE_STR "<1-65535> Instance ID\n"
 #define SECONDS_STR "<1-65535> Seconds\n"
 #define ROUTE_STR "Routing Table\n"
 #define PREFIX_LIST_STR "Build a prefix list\n"
 #define OSPF6_DUMP_TYPE_LIST \
 "(neighbor|interface|area|lsa|zebra|config|dbex|spf|route|lsdb|redistribute|hook|asbr|prefix|abr)"
 #define ISIS_STR "IS-IS information\n"
 #define AREA_TAG_STR "[area tag]\n"

 #define CONF_BACKUP_EXT ".sav"

 /* IPv4 only machine should not accept IPv6 address for peer's IP
    address.  So we replace VTY command string like below. */
 #ifdef HAVE_IPV6
 #define NEIGHBOR_CMD       "neighbor (A.B.C.D|X:X::X:X) "
 #define NO_NEIGHBOR_CMD    "no neighbor (A.B.C.D|X:X::X:X) "
 #define NEIGHBOR_ADDR_STR  "Neighbor address\nIPv6 address\n"
 #define NEIGHBOR_CMD2      "neighbor (A.B.C.D|X:X::X:X|WORD) "
 #define NO_NEIGHBOR_CMD2   "no neighbor (A.B.C.D|X:X::X:X|WORD) "
 #define NEIGHBOR_ADDR_STR2 "Neighbor address\nNeighbor IPv6 address\nNeighbor tag\n"
 #else
 #define NEIGHBOR_CMD       "neighbor A.B.C.D "
 #define NO_NEIGHBOR_CMD    "no neighbor A.B.C.D "
 #define NEIGHBOR_ADDR_STR  "Neighbor address\n"
 #define NEIGHBOR_CMD2      "neighbor (A.B.C.D|WORD) "
 #define NO_NEIGHBOR_CMD2   "no neighbor (A.B.C.D|WORD) "
 #define NEIGHBOR_ADDR_STR2 "Neighbor address\nNeighbor tag\n"
 #endif /* HAVE_IPV6 */

 /* Prototypes. */
 void install_node (struct cmd_node *, int (*) (struct vty *));
 void install_default (enum node_type);
 void install_element (enum node_type, struct cmd_element *);
 void sort_node ();

 char *argv_concat (char **, int, int);
 vector cmd_make_strvec (const char *);
 void cmd_free_strvec (vector);
 vector cmd_describe_command ();
 char **cmd_complete_command ();
 const char *cmd_prompt (enum node_type);
 int config_from_file (struct vty *, FILE *);
 int cmd_execute_command (vector, struct vty *, struct cmd_element **);
 int cmd_execute_command_strict (vector, struct vty *, struct cmd_element **);
 void config_replace_string (struct cmd_element *, char *, ...);
 void cmd_init (int);

 /* Export typical functions. */
 extern struct cmd_element config_end_cmd;
 extern struct cmd_element config_exit_cmd;
 extern struct cmd_element config_quit_cmd;
 extern struct cmd_element config_help_cmd;
 extern struct cmd_element config_list_cmd;
 int config_exit (struct cmd_element *, struct vty *, int, const char *[]);
 int config_help (struct cmd_element *, struct vty *, int, const char *[]);
 char *host_config_file ();
 void host_config_set (char *);

 #endif /* _ZEBRA_COMMAND_H */
	/*
	* Zebra configuration command interface routine
	* Copyright (C) 1997, 98 Kunihiro Ishiguro
	*
	* This file is part of GNU Zebra.
	*
	* GNU Zebra 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, or (at your
	* option) any later version.
	*
	* GNU Zebra 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 GNU Zebra; see the file COPYING. If not, write to the
	* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	* Boston, MA 02111-1307, USA.
	*/

	#ifndef _ZEBRA_COMMAND_H
	#define _ZEBRA_COMMAND_H

	#include "vector.h"
	#include "vty.h"

	/* Host configuration variable */
	struct host
	{
	/* Host name of this router. */
	char *name;

	/* Password for vty interface. */
	char *password;
	char *password_encrypt;

	/* Enable password */
	char *enable;
	char *enable_encrypt;

	/* System wide terminal lines. */
	int lines;

	/* Log filename. */
	char *logfile;

	/* Log stdout. */
	u_char log_stdout;

	/* Log syslog. */
	u_char log_syslog;

	/* config file name of this host */
	char *config;

	/* Flags for services */
	int advanced;
	int encrypt;

	/* Banner configuration. */
	const char *motd;
	};

	/* There are some command levels which called from command node. */
	enum node_type
	{
	AUTH_NODE, /* Authentication mode of vty interface. */
	VIEW_NODE, /* View node. Default mode of vty interface. */
	AUTH_ENABLE_NODE, /* Authentication mode for change enable. */
	ENABLE_NODE, /* Enable node. */
	CONFIG_NODE, /* Config node. Default mode of config file. */
	SERVICE_NODE, /* Service node. */
	DEBUG_NODE, /* Debug node. */
	AAA_NODE, /* AAA node. */
	KEYCHAIN_NODE, /* Key-chain node. */
	KEYCHAIN_KEY_NODE, /* Key-chain key node. */
	INTERFACE_NODE, /* Interface mode node. */
	ZEBRA_NODE, /* zebra connection node. */
	TABLE_NODE, /* rtm_table selection node. */
	RIP_NODE, /* RIP protocol mode node. */
	RIPNG_NODE, /* RIPng protocol mode node. */
	BGP_NODE, /* BGP protocol mode which includes BGP4+ */
	BGP_VPNV4_NODE, /* BGP MPLS-VPN PE exchange. */
	BGP_IPV4_NODE, /* BGP IPv4 unicast address family. */
	BGP_IPV4M_NODE, /* BGP IPv4 multicast address family. */
	BGP_IPV6_NODE, /* BGP IPv6 address family */
	OSPF_NODE, /* OSPF protocol mode */
	OSPF6_NODE, /* OSPF protocol for IPv6 mode */
	ISIS_NODE, /* ISIS protocol mode */
	MASC_NODE, /* MASC for multicast. */
	IRDP_NODE, /* ICMP Router Discovery Protocol mode. */
	IP_NODE, /* Static ip route node. */
	ACCESS_NODE, /* Access list node. */
	PREFIX_NODE, /* Prefix list node. */
	ACCESS_IPV6_NODE, /* Access list node. */
	PREFIX_IPV6_NODE, /* Prefix list node. */
	AS_LIST_NODE, /* AS list node. */
	COMMUNITY_LIST_NODE, /* Community list node. */
	RMAP_NODE, /* Route map node. */
	SMUX_NODE, /* SNMP configuration node. */
	DUMP_NODE, /* Packet dump node. */
	FORWARDING_NODE, /* IP forwarding node. */
	VTY_NODE /* Vty node. */
	};

	/* Node which has some commands and prompt string and configuration
	function pointer . */
	struct cmd_node
	{
	/* Node index. */
	enum node_type node;

	/* Prompt character at vty interface. */
	const char *prompt;

	/* Is this node's configuration goes to vtysh ? */
	int vtysh;

	/* Node's configuration write function */
	int (func) (struct vty );

	/* Vector of this node's command list. */
	vector cmd_vector;
	};

	/* Structure of command element. */
	struct cmd_element
	{
	const char string; / Command specification by string. */
	int (func) (struct cmd_element , struct vty , int, const char []);
	const char doc; / Documentation of this command. */
	int daemon; /* Daemon to which this command belong. */
	vector strvec; /* Pointing out each description vector. */
	unsigned int cmdsize; /* Command index count. */
	char config; / Configuration string */
	vector subconfig; /* Sub configuration string */
	};

	/* Command description structure. */
	struct desc
	{
	const char cmd; / Command string. */
	const char str; / Command's description. */
	};

	/* Return value of the commands. */
	#define CMD_SUCCESS 0
	#define CMD_WARNING 1
	#define CMD_ERR_NO_MATCH 2
	#define CMD_ERR_AMBIGUOUS 3
	#define CMD_ERR_INCOMPLETE 4
	#define CMD_ERR_EXEED_ARGC_MAX 5
	#define CMD_ERR_NOTHING_TODO 6
	#define CMD_COMPLETE_FULL_MATCH 7
	#define CMD_COMPLETE_MATCH 8
	#define CMD_COMPLETE_LIST_MATCH 9
	#define CMD_SUCCESS_DAEMON 10

	/* Argc max counts. */
	#define CMD_ARGC_MAX 25

	/* Turn off these macros when uisng cpp with extract.pl */
	#ifndef VTYSH_EXTRACT_PL

	/* DEFUN for vty command interafce. Little bit hacky ;-). */
	#define DEFUN(funcname, cmdname, cmdstr, helpstr) \
	int funcname (struct cmd_element , struct vty , int, const char *[]); \
	struct cmd_element cmdname = \
	{ \
	.string = cmdstr, \
	.func = funcname, \
	.doc = helpstr \
	}; \
	int funcname \
	(struct cmd_element self, struct vty vty, int argc, const char *argv[])

	/* DEFUN_NOSH for commands that vtysh should ignore */
	#define DEFUN_NOSH(funcname, cmdname, cmdstr, helpstr) \
	DEFUN(funcname, cmdname, cmdstr, helpstr)

	/* DEFSH for vtysh. */
	#define DEFSH(daemon, cmdname, cmdstr, helpstr) \
	struct cmd_element cmdname = \
	{ \
	cmdstr, \
	NULL, \
	helpstr, \
	daemon \
	}; \

	/* DEFUN + DEFSH */
	#define DEFUNSH(daemon, funcname, cmdname, cmdstr, helpstr) \
	int funcname (struct cmd_element , struct vty , int, const char *[]); \
	struct cmd_element cmdname = \
	{ \
	cmdstr, \
	funcname, \
	helpstr, \
	daemon \
	}; \
	int funcname \
	(struct cmd_element self, struct vty vty, int argc, const char *argv[])

	/* ALIAS macro which define existing command's alias. */
	#define ALIAS(funcname, cmdname, cmdstr, helpstr) \
	struct cmd_element cmdname = \
	{ \
	cmdstr, \
	funcname, \
	helpstr \
	};

	#endif /* VTYSH_EXTRACT_PL */

	/* Some macroes */
	#define CMD_OPTION(S) ((S[0]) == '[')
	#define CMD_VARIABLE(S) (((S[0]) >= 'A' && (S[0]) <= 'Z') \|\| ((S[0]) == '<'))
	#define CMD_VARARG(S) ((S[0]) == '.')
	#define CMD_RANGE(S) ((S[0] == '<'))

	#define CMD_IPV4(S) ((strcmp ((S), "A.B.C.D") == 0))
	#define CMD_IPV4_PREFIX(S) ((strcmp ((S), "A.B.C.D/M") == 0))
	#define CMD_IPV6(S) ((strcmp ((S), "X:X::X:X") == 0))
	#define CMD_IPV6_PREFIX(S) ((strcmp ((S), "X:X::X:X/M") == 0))

	/* Common descriptions. */
	#define SHOW_STR "Show running system information\n"
	#define IP_STR "IP information\n"
	#define IPV6_STR "IPv6 information\n"
	#define NO_STR "Negate a command or set its defaults\n"
	#define CLEAR_STR "Reset functions\n"
	#define RIP_STR "RIP information\n"
	#define BGP_STR "BGP information\n"
	#define OSPF_STR "OSPF information\n"
	#define NEIGHBOR_STR "Specify neighbor router\n"
	#define DEBUG_STR "Debugging functions (see also 'undebug')\n"
	#define UNDEBUG_STR "Disable debugging functions (see also 'debug')\n"
	#define ROUTER_STR "Enable a routing process\n"
	#define AS_STR "AS number\n"
	#define MBGP_STR "MBGP information\n"
	#define MATCH_STR "Match values from routing table\n"
	#define SET_STR "Set values in destination routing protocol\n"
	#define OUT_STR "Filter outgoing routing updates\n"
	#define IN_STR "Filter incoming routing updates\n"
	#define V4NOTATION_STR "specify by IPv4 address notation(e.g. 0.0.0.0)\n"
	#define OSPF6_NUMBER_STR "Specify by number\n"
	#define INTERFACE_STR "Interface infomation\n"
	#define IFNAME_STR "Interface name(e.g. ep0)\n"
	#define IP6_STR "IPv6 Information\n"
	#define OSPF6_STR "Open Shortest Path First (OSPF) for IPv6\n"
	#define OSPF6_ROUTER_STR "Enable a routing process\n"
	#define OSPF6_INSTANCE_STR "<1-65535> Instance ID\n"
	#define SECONDS_STR "<1-65535> Seconds\n"
	#define ROUTE_STR "Routing Table\n"
	#define PREFIX_LIST_STR "Build a prefix list\n"
	#define OSPF6_DUMP_TYPE_LIST \
	"(neighbor\|interface\|area\|lsa\|zebra\|config\|dbex\|spf\|route\|lsdb\|redistribute\|hook\|asbr\|prefix\|abr)"
	#define ISIS_STR "IS-IS information\n"
	#define AREA_TAG_STR "[area tag]\n"

	#define CONF_BACKUP_EXT ".sav"

	/* IPv4 only machine should not accept IPv6 address for peer's IP
	address. So we replace VTY command string like below. */
	#ifdef HAVE_IPV6
	#define NEIGHBOR_CMD "neighbor (A.B.C.D\|X:X::X:X) "
	#define NO_NEIGHBOR_CMD "no neighbor (A.B.C.D\|X:X::X:X) "
	#define NEIGHBOR_ADDR_STR "Neighbor address\nIPv6 address\n"
	#define NEIGHBOR_CMD2 "neighbor (A.B.C.D\|X:X::X:X\|WORD) "
	#define NO_NEIGHBOR_CMD2 "no neighbor (A.B.C.D\|X:X::X:X\|WORD) "
	#define NEIGHBOR_ADDR_STR2 "Neighbor address\nNeighbor IPv6 address\nNeighbor tag\n"
	#else
	#define NEIGHBOR_CMD "neighbor A.B.C.D "
	#define NO_NEIGHBOR_CMD "no neighbor A.B.C.D "
	#define NEIGHBOR_ADDR_STR "Neighbor address\n"
	#define NEIGHBOR_CMD2 "neighbor (A.B.C.D\|WORD) "
	#define NO_NEIGHBOR_CMD2 "no neighbor (A.B.C.D\|WORD) "
	#define NEIGHBOR_ADDR_STR2 "Neighbor address\nNeighbor tag\n"
	#endif /* HAVE_IPV6 */

	/* Prototypes. */
	void install_node (struct cmd_node , int () (struct vty *));
	void install_default (enum node_type);
	void install_element (enum node_type, struct cmd_element *);
	void sort_node ();

	char argv_concat (char *, int, int);
	vector cmd_make_strvec (const char *);
	void cmd_free_strvec (vector);
	vector cmd_describe_command ();
	char **cmd_complete_command ();
	const char *cmd_prompt (enum node_type);
	int config_from_file (struct vty , FILE );
	int cmd_execute_command (vector, struct vty , struct cmd_element *);
	int cmd_execute_command_strict (vector, struct vty , struct cmd_element *);
	void config_replace_string (struct cmd_element , char , ...);
	void cmd_init (int);

	/* Export typical functions. */
	extern struct cmd_element config_end_cmd;
	extern struct cmd_element config_exit_cmd;
	extern struct cmd_element config_quit_cmd;
	extern struct cmd_element config_help_cmd;
	extern struct cmd_element config_list_cmd;
	int config_exit (struct cmd_element , struct vty , int, const char *[]);
	int config_help (struct cmd_element , struct vty , int, const char *[]);
	char *host_config_file ();
	void host_config_set (char *);

	#endif /* _ZEBRA_COMMAND_H */