[mirror_frr.git] / lib / vty.h

/* Virtual terminal [aka TeletYpe] interface routine
 * Copyright (C) 1997 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 this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef _ZEBRA_VTY_H
#define _ZEBRA_VTY_H

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

#include "thread.h"
#include "log.h"
#include "sockunion.h"
#include "qobj.h"
#include "compiler.h"
#include "northbound.h"

#define VTY_BUFSIZ 4096
#define VTY_MAXHIST 20
#define VTY_MAXDEPTH 8

struct vty_error {
	char error_buf[VTY_BUFSIZ];
	uint32_t line_num;
};

/* VTY struct. */
struct vty {
	/* File descripter of this vty. */
	int fd;

	/* output FD, to support stdin/stdout combination */
	int wfd;

	/* File output, used for VTYSH only */
	FILE *of;
	FILE *of_saved;

	/* whether we are using pager or not */
	bool is_paged;

	/* Is this vty connect to file or not */
	enum { VTY_TERM, VTY_FILE, VTY_SHELL, VTY_SHELL_SERV } type;

	/* Node status of this vty */
	int node;

	/* Failure count */
	int fail;

	/* Output filer regex */
	bool filter;
	regex_t include;

	/* Line buffer */
	struct buffer *lbuf;

	/* Output buffer. */
	struct buffer *obuf;

	/* Command input buffer */
	char *buf;

	/* Command input error buffer */
	struct list *error;

	/* Command cursor point */
	int cp;

	/* Command length */
	int length;

	/* Command max length. */
	int max;

	/* Histry of command */
	char *hist[VTY_MAXHIST];

	/* History lookup current point */
	int hp;

	/* History insert end point */
	int hindex;

	/* XPath of the current node */
	int xpath_index;
	char xpath[VTY_MAXDEPTH][XPATH_MAXLEN];

	/* Private candidate configuration mode. */
	bool private_config;

	/* Candidate configuration. */
	struct nb_config *candidate_config;

	/* Base candidate configuration. */
	struct nb_config *candidate_config_base;

	/* qobj object ID (replacement for "index") */
	uint64_t qobj_index;

	/* qobj second-level object ID (replacement for "index_sub") */
	uint64_t qobj_index_sub;

	/* For escape character. */
	unsigned char escape;

	/* Current vty status. */
	enum { VTY_NORMAL, VTY_CLOSE, VTY_MORE, VTY_MORELINE } status;

	/* IAC handling: was the last character received the
	   IAC (interpret-as-command) escape character (and therefore the next
	   character will be the command code)?  Refer to Telnet RFC 854. */
	unsigned char iac;

	/* IAC SB (option subnegotiation) handling */
	unsigned char iac_sb_in_progress;
/* At the moment, we care only about the NAWS (window size) negotiation,
   and that requires just a 5-character buffer (RFC 1073):
     <NAWS char> <16-bit width> <16-bit height> */
#define TELNET_NAWS_SB_LEN 5
	unsigned char sb_buf[TELNET_NAWS_SB_LEN];
	/* How many subnegotiation characters have we received?  We just drop
	   those that do not fit in the buffer. */
	size_t sb_len;

	/* Window width/height. */
	int width;
	int height;

	/* Configure lines. */
	int lines;

	/* Terminal monitor. */
	int monitor;

	/* In configure mode. */
	int config;

	/* Read and write thread. */
	struct thread *t_read;
	struct thread *t_write;

	/* Timeout seconds and thread. */
	unsigned long v_timeout;
	struct thread *t_timeout;

	/* What address is this vty comming from. */
	char address[SU_ADDRSTRLEN];

	/* "frame" output.  This is buffered and will be printed if some
	 * actual output follows, or will be discarded if the frame ends
	 * without any output. */
	size_t frame_pos;
	char frame[1024];
};

static inline void vty_push_context(struct vty *vty, int node, uint64_t id)
{
	vty->node = node;
	vty->qobj_index = id;
}

/* note: VTY_PUSH_CONTEXT(..., NULL) doesn't work, since it will try to
 * dereference "NULL->qobj_node.nid" */
#define VTY_PUSH_CONTEXT(nodeval, ptr)                                         \
	vty_push_context(vty, nodeval, QOBJ_ID_0SAFE(ptr))
#define VTY_PUSH_CONTEXT_NULL(nodeval) vty_push_context(vty, nodeval, 0ULL)
#define VTY_PUSH_CONTEXT_SUB(nodeval, ptr)                                     \
	do {                                                                   \
		vty->node = nodeval;                                           \
		/* qobj_index stays untouched */                               \
		vty->qobj_index_sub = QOBJ_ID_0SAFE(ptr);                      \
	} while (0)

/* can return NULL if context is invalid! */
#define VTY_GET_CONTEXT(structname)                                            \
	QOBJ_GET_TYPESAFE(vty->qobj_index, structname)
#define VTY_GET_CONTEXT_SUB(structname)                                        \
	QOBJ_GET_TYPESAFE(vty->qobj_index_sub, structname)

/* will return if ptr is NULL. */
#define VTY_CHECK_CONTEXT(ptr)                                                 \
	if (!ptr) {                                                            \
		vty_out(vty,                                                   \
			"Current configuration object was deleted "            \
			"by another process.\n");                              \
		return CMD_WARNING;                                            \
	}

/* struct structname *ptr = <context>;   ptr will never be NULL. */
#define VTY_DECLVAR_CONTEXT(structname, ptr)                                   \
	struct structname *ptr = VTY_GET_CONTEXT(structname);                  \
	VTY_CHECK_CONTEXT(ptr);
#define VTY_DECLVAR_CONTEXT_SUB(structname, ptr)                               \
	struct structname *ptr = VTY_GET_CONTEXT_SUB(structname);              \
	VTY_CHECK_CONTEXT(ptr);
#define VTY_DECLVAR_INSTANCE_CONTEXT(structname, ptr)                          \
	if (vty->qobj_index == 0)                                              \
		return CMD_NOT_MY_INSTANCE;                                    \
	struct structname *ptr = VTY_GET_CONTEXT(structname);                  \
	VTY_CHECK_CONTEXT(ptr);

/* XPath macros. */
#define VTY_PUSH_XPATH(nodeval, value)                                         \
	do {                                                                   \
		if (vty->xpath_index >= VTY_MAXDEPTH) {                        \
			vty_out(vty, "%% Reached maximum CLI depth (%u)\n",    \
				VTY_MAXDEPTH);                                 \
			return CMD_WARNING;                                    \
		}                                                              \
		vty->node = nodeval;                                           \
		strlcpy(vty->xpath[vty->xpath_index], value,                   \
			sizeof(vty->xpath[0]));                                \
		vty->xpath_index++;                                            \
	} while (0)

#define VTY_CURR_XPATH vty->xpath[vty->xpath_index - 1]

#define VTY_CHECK_XPATH                                                        \
	do {                                                                   \
		if (vty->xpath_index > 0                                       \
		    && !yang_dnode_exists(vty->candidate_config->dnode,        \
					  VTY_CURR_XPATH)) {                   \
			vty_out(vty,                                           \
				"Current configuration object was deleted "    \
				"by another process.\n\n");                    \
			return CMD_WARNING;                                    \
		}                                                              \
	} while (0)

struct vty_arg {
	const char *name;
	const char *value;
	const char **argv;
	int argc;
};

/* Integrated configuration file. */
#define INTEGRATE_DEFAULT_CONFIG "frr.conf"

/* Default time out value */
#define VTY_TIMEOUT_DEFAULT 600

/* Vty read buffer size. */
#define VTY_READ_BUFSIZ 512

/* Directory separator. */
#ifndef DIRECTORY_SEP
#define DIRECTORY_SEP '/'
#endif /* DIRECTORY_SEP */

#ifndef IS_DIRECTORY_SEP
#define IS_DIRECTORY_SEP(c) ((c) == DIRECTORY_SEP)
#endif

/* Exported variables */
extern char integrate_default[];
extern struct vty *vty_exclusive_lock;

/* Prototypes. */
extern void vty_init(struct thread_master *);
extern void vty_init_vtysh(void);
extern void vty_terminate(void);
extern void vty_reset(void);
extern struct vty *vty_new(void);
extern struct vty *vty_stdio(void (*atclose)(int isexit));

/* - vty_frame() output goes to a buffer (for context-begin markers)
 * - vty_out() will first print this buffer, and clear it
 * - vty_endframe() clears the buffer without printing it, and prints an
 *   extra string if the buffer was empty before (for context-end markers)
 */
extern int vty_out(struct vty *, const char *, ...) PRINTF_ATTRIBUTE(2, 3);
extern void vty_frame(struct vty *, const char *, ...) PRINTF_ATTRIBUTE(2, 3);
extern void vty_endframe(struct vty *, const char *);
bool vty_set_include(struct vty *vty, const char *regexp);

extern bool vty_read_config(struct nb_config *config, const char *config_file,
			    char *config_default_dir);
extern void vty_time_print(struct vty *, int);
extern void vty_serv_sock(const char *, unsigned short, const char *);
extern void vty_close(struct vty *);
extern char *vty_get_cwd(void);
extern void vty_log(const char *level, const char *proto, const char *fmt,
		    struct timestamp_control *, va_list);
extern int vty_config_lock(struct vty *);
extern int vty_config_unlock(struct vty *);
extern void vty_config_lockless(void);
extern int vty_config_exclusive_lock(struct vty *vty);
extern void vty_config_exclusive_unlock(struct vty *vty);
extern int vty_shell(struct vty *);
extern int vty_shell_serv(struct vty *);
extern void vty_hello(struct vty *);

/* ^Z / SIGTSTP handling */
extern void vty_stdio_suspend(void);
extern void vty_stdio_resume(void);
extern void vty_stdio_close(void);

/* Send a fixed-size message to all vty terminal monitors; this should be
   an async-signal-safe function. */
extern void vty_log_fixed(char *buf, size_t len);

#endif /* _ZEBRA_VTY_H */
Commit	Line	Data
718e3744	1	/* Virtual terminal [aka TeletYpe] interface routine
896014f4 DL	2	* Copyright (C) 1997 Kunihiro Ishiguro
	3	*
	4	* This file is part of GNU Zebra.
	5	*
	6	* GNU Zebra is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2, or (at your option) any
	9	* later version.
	10	*
	11	* GNU Zebra is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License along
	17	* with this program; see the file COPYING; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
718e3744	20
	21	#ifndef _ZEBRA_VTY_H
	22	#define _ZEBRA_VTY_H
	23
fe6b47b9 QY	24	#include <sys/types.h>
	25	#include <regex.h>
	26
b21b19c5	27	#include "thread.h"
1ed72e0b	28	#include "log.h"
d227617a	29	#include "sockunion.h"
0878c8d4	30	#include "qobj.h"
de1a880c	31	#include "compiler.h"
1c2facd1	32	#include "northbound.h"
b21b19c5	33
2af38873	34	#define VTY_BUFSIZ 4096
718e3744	35	#define VTY_MAXHIST 20
1c2facd1	36	#define VTY_MAXDEPTH 8
718e3744	37
7ab57d19 DS	38	struct vty_error {
	39	char error_buf[VTY_BUFSIZ];
	40	uint32_t line_num;
	41	};
	42
718e3744	43	/* VTY struct. */
d62a17ae	44	struct vty {
	45	/* File descripter of this vty. */
	46	int fd;
718e3744	47
d62a17ae	48	/* output FD, to support stdin/stdout combination */
d62a17ae	49	int wfd;
c5e69a02	50
2cddf2ff QY	51	/* File output, used for VTYSH only */
	52	FILE *of;
	53	FILE *of_saved;
	54
	55	/* whether we are using pager or not */
	56	bool is_paged;
	57
d62a17ae	58	/* Is this vty connect to file or not */
d62a17ae	59	enum { VTY_TERM, VTY_FILE, VTY_SHELL, VTY_SHELL_SERV } type;
718e3744	60
d62a17ae	61	/* Node status of this vty */
d62a17ae	62	int node;
718e3744	63
d62a17ae	64	/* Failure count */
d62a17ae	65	int fail;
718e3744	66
fe6b47b9 QY	67	/* Output filer regex */
	68	bool filter;
	69	regex_t include;
	70
0b42d81a QY	71	/* Line buffer */
	72	struct buffer *lbuf;
	73
d62a17ae	74	/* Output buffer. */
d62a17ae	75	struct buffer *obuf;
718e3744	76
d62a17ae	77	/* Command input buffer */
d62a17ae	78	char *buf;
718e3744	79
d62a17ae	80	/* Command input error buffer */
7ab57d19	81	struct list *error;
5689fe5f	82
d62a17ae	83	/* Command cursor point */
d62a17ae	84	int cp;
718e3744	85
d62a17ae	86	/* Command length */
d62a17ae	87	int length;
718e3744	88
d62a17ae	89	/* Command max length. */
d62a17ae	90	int max;
718e3744	91
d62a17ae	92	/* Histry of command */
d62a17ae	93	char *hist[VTY_MAXHIST];
718e3744	94
d62a17ae	95	/* History lookup current point */
d62a17ae	96	int hp;
718e3744	97
d62a17ae	98	/* History insert end point */
d62a17ae	99	int hindex;
718e3744	100
1c2facd1 RW	101	/* XPath of the current node */
	102	int xpath_index;
	103	char xpath[VTY_MAXDEPTH][XPATH_MAXLEN];
	104
	105	/* Private candidate configuration mode. */
	106	bool private_config;
	107
	108	/* Candidate configuration. */
	109	struct nb_config *candidate_config;
	110
	111	/* Base candidate configuration. */
	112	struct nb_config *candidate_config_base;
	113
d62a17ae	114	/* qobj object ID (replacement for "index") */
d62a17ae	115	uint64_t qobj_index;
718e3744	116
d62a17ae	117	/* qobj second-level object ID (replacement for "index_sub") */
d62a17ae	118	uint64_t qobj_index_sub;
718e3744	119
d62a17ae	120	/* For escape character. */
d62a17ae	121	unsigned char escape;
718e3744	122
d62a17ae	123	/* Current vty status. */
d62a17ae	124	enum { VTY_NORMAL, VTY_CLOSE, VTY_MORE, VTY_MORELINE } status;
718e3744	125
d62a17ae	126	/* IAC handling: was the last character received the
	127	IAC (interpret-as-command) escape character (and therefore the next
	128	character will be the command code)? Refer to Telnet RFC 854. */
	129	unsigned char iac;
718e3744	130
d62a17ae	131	/* IAC SB (option subnegotiation) handling */
	132	unsigned char iac_sb_in_progress;
	133	/* At the moment, we care only about the NAWS (window size) negotiation,
	134	and that requires just a 5-character buffer (RFC 1073):
	135	<NAWS char> <16-bit width> <16-bit height> */
9fc7ebf1	136	#define TELNET_NAWS_SB_LEN 5
d62a17ae	137	unsigned char sb_buf[TELNET_NAWS_SB_LEN];
	138	/* How many subnegotiation characters have we received? We just drop
	139	those that do not fit in the buffer. */
	140	size_t sb_len;
718e3744	141
d62a17ae	142	/* Window width/height. */
	143	int width;
	144	int height;
718e3744	145
d62a17ae	146	/* Configure lines. */
d62a17ae	147	int lines;
718e3744	148
d62a17ae	149	/* Terminal monitor. */
d62a17ae	150	int monitor;
718e3744	151
d62a17ae	152	/* In configure mode. */
d62a17ae	153	int config;
718e3744	154
d62a17ae	155	/* Read and write thread. */
	156	struct thread *t_read;
	157	struct thread *t_write;
718e3744	158
d62a17ae	159	/* Timeout seconds and thread. */
	160	unsigned long v_timeout;
	161	struct thread *t_timeout;
d227617a	162
d62a17ae	163	/* What address is this vty comming from. */
d62a17ae	164	char address[SU_ADDRSTRLEN];
2071aa0e DL	165
	166	/* "frame" output. This is buffered and will be printed if some
	167	* actual output follows, or will be discarded if the frame ends
	168	* without any output. */
	169	size_t frame_pos;
	170	char frame[1024];
718e3744	171	};
718e3744	172
d62a17ae	173	static inline void vty_push_context(struct vty *vty, int node, uint64_t id)
0878c8d4	174	{
d62a17ae	175	vty->node = node;
d62a17ae	176	vty->qobj_index = id;
0878c8d4 DL	177	}
0878c8d4 DL	178
3c5070be DL	179	/* note: VTY_PUSH_CONTEXT(..., NULL) doesn't work, since it will try to
3c5070be DL	180	* dereference "NULL->qobj_node.nid" */
d62a17ae	181	#define VTY_PUSH_CONTEXT(nodeval, ptr) \
a50b7ceb	182	vty_push_context(vty, nodeval, QOBJ_ID_0SAFE(ptr))
d62a17ae	183	#define VTY_PUSH_CONTEXT_NULL(nodeval) vty_push_context(vty, nodeval, 0ULL)
	184	#define VTY_PUSH_CONTEXT_SUB(nodeval, ptr) \
	185	do { \
	186	vty->node = nodeval; \
	187	/* qobj_index stays untouched */ \
	188	vty->qobj_index_sub = QOBJ_ID_0SAFE(ptr); \
6a098b3a	189	} while (0)
0878c8d4 DL	190
0878c8d4 DL	191	/* can return NULL if context is invalid! */
d62a17ae	192	#define VTY_GET_CONTEXT(structname) \
0878c8d4	193	QOBJ_GET_TYPESAFE(vty->qobj_index, structname)
d62a17ae	194	#define VTY_GET_CONTEXT_SUB(structname) \
6a098b3a	195	QOBJ_GET_TYPESAFE(vty->qobj_index_sub, structname)
0878c8d4 DL	196
0878c8d4 DL	197	/* will return if ptr is NULL. */
d62a17ae	198	#define VTY_CHECK_CONTEXT(ptr) \
	199	if (!ptr) { \
	200	vty_out(vty, \
	201	"Current configuration object was deleted " \
	202	"by another process.\n"); \
	203	return CMD_WARNING; \
0878c8d4 DL	204	}
	205
	206	/* struct structname ptr = <context>; ptr will never be NULL. /
d62a17ae	207	#define VTY_DECLVAR_CONTEXT(structname, ptr) \
d62a17ae	208	struct structname *ptr = VTY_GET_CONTEXT(structname); \
0878c8d4	209	VTY_CHECK_CONTEXT(ptr);
d62a17ae	210	#define VTY_DECLVAR_CONTEXT_SUB(structname, ptr) \
d62a17ae	211	struct structname *ptr = VTY_GET_CONTEXT_SUB(structname); \
6a098b3a	212	VTY_CHECK_CONTEXT(ptr);
a3d826f0	213	#define VTY_DECLVAR_INSTANCE_CONTEXT(structname, ptr) \
996c9314 LB	214	if (vty->qobj_index == 0) \
996c9314 LB	215	return CMD_NOT_MY_INSTANCE; \
a3d826f0 CS	216	struct structname *ptr = VTY_GET_CONTEXT(structname); \
a3d826f0 CS	217	VTY_CHECK_CONTEXT(ptr);
0878c8d4	218
1c2facd1 RW	219	/* XPath macros. */
	220	#define VTY_PUSH_XPATH(nodeval, value) \
	221	do { \
	222	if (vty->xpath_index >= VTY_MAXDEPTH) { \
	223	vty_out(vty, "%% Reached maximum CLI depth (%u)\n", \
	224	VTY_MAXDEPTH); \
	225	return CMD_WARNING; \
	226	} \
	227	vty->node = nodeval; \
	228	strlcpy(vty->xpath[vty->xpath_index], value, \
	229	sizeof(vty->xpath[0])); \
	230	vty->xpath_index++; \
	231	} while (0)
	232
	233	#define VTY_CURR_XPATH vty->xpath[vty->xpath_index - 1]
	234
	235	#define VTY_CHECK_XPATH \
	236	do { \
	237	if (vty->xpath_index > 0 \
	238	&& !yang_dnode_exists(vty->candidate_config->dnode, \
	239	VTY_CURR_XPATH)) { \
	240	vty_out(vty, \
	241	"Current configuration object was deleted " \
	242	"by another process.\n\n"); \
	243	return CMD_WARNING; \
	244	} \
	245	} while (0)
	246
d62a17ae	247	struct vty_arg {
	248	const char *name;
	249	const char *value;
	250	const char **argv;
	251	int argc;
eac6e3f0 RW	252	};
eac6e3f0 RW	253
718e3744	254	/* Integrated configuration file. */
e20dc2ba	255	#define INTEGRATE_DEFAULT_CONFIG "frr.conf"
718e3744	256
718e3744	257	/* Default time out value */
	258	#define VTY_TIMEOUT_DEFAULT 600
	259
	260	/* Vty read buffer size. */
	261	#define VTY_READ_BUFSIZ 512
	262
	263	/* Directory separator. */
	264	#ifndef DIRECTORY_SEP
	265	#define DIRECTORY_SEP '/'
	266	#endif /* DIRECTORY_SEP */
	267
	268	#ifndef IS_DIRECTORY_SEP
	269	#define IS_DIRECTORY_SEP(c) ((c) == DIRECTORY_SEP)
	270	#endif
	271
718e3744	272	/* Exported variables */
718e3744	273	extern char integrate_default[];
1c2facd1	274	extern struct vty *vty_exclusive_lock;
718e3744	275
718e3744	276	/* Prototypes. */
d62a17ae	277	extern void vty_init(struct thread_master *);
	278	extern void vty_init_vtysh(void);
	279	extern void vty_terminate(void);
	280	extern void vty_reset(void);
	281	extern struct vty *vty_new(void);
154b9e8f	282	extern struct vty vty_stdio(void (atclose)(int isexit));
2071aa0e DL	283
	284	/* - vty_frame() output goes to a buffer (for context-begin markers)
	285	* - vty_out() will first print this buffer, and clear it
	286	* - vty_endframe() clears the buffer without printing it, and prints an
	287	* extra string if the buffer was empty before (for context-end markers)
	288	*/
d62a17ae	289	extern int vty_out(struct vty , const char , ...) PRINTF_ATTRIBUTE(2, 3);
2071aa0e DL	290	extern void vty_frame(struct vty , const char , ...) PRINTF_ATTRIBUTE(2, 3);
2071aa0e DL	291	extern void vty_endframe(struct vty , const char );
fe6b47b9	292	bool vty_set_include(struct vty vty, const char regexp);
2071aa0e	293
1c2facd1 RW	294	extern bool vty_read_config(struct nb_config config, const char config_file,
1c2facd1 RW	295	char *config_default_dir);
d62a17ae	296	extern void vty_time_print(struct vty *, int);
	297	extern void vty_serv_sock(const char , unsigned short, const char );
	298	extern void vty_close(struct vty *);
	299	extern char *vty_get_cwd(void);
	300	extern void vty_log(const char level, const char proto, const char *fmt,
	301	struct timestamp_control *, va_list);
	302	extern int vty_config_lock(struct vty *);
	303	extern int vty_config_unlock(struct vty *);
	304	extern void vty_config_lockless(void);
1c2facd1 RW	305	extern int vty_config_exclusive_lock(struct vty *vty);
1c2facd1 RW	306	extern void vty_config_exclusive_unlock(struct vty *vty);
d62a17ae	307	extern int vty_shell(struct vty *);
	308	extern int vty_shell_serv(struct vty *);
	309	extern void vty_hello(struct vty *);
718e3744	310
154b9e8f DL	311	/* ^Z / SIGTSTP handling */
	312	extern void vty_stdio_suspend(void);
	313	extern void vty_stdio_resume(void);
	314	extern void vty_stdio_close(void);
	315
274a4a44	316	/* Send a fixed-size message to all vty terminal monitors; this should be
274a4a44	317	an async-signal-safe function. */
d62a17ae	318	extern void vty_log_fixed(char *buf, size_t len);
274a4a44	319
718e3744	320	#endif /* _ZEBRA_VTY_H */