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#ifndef _VTY_H
#define _VTY_H
#include <stdio.h>
#include <stdarg.h>
/* GCC have printf type attribute check. */
#ifdef __GNUC__
#define VTY_PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
#else
#define VTY_PRINTF_ATTRIBUTE(a,b)
#endif /* __GNUC__ */
/* Does the I/O error indicate that the operation should be retried later? */
#define ERRNO_IO_RETRY(EN) \
(((EN) == EAGAIN) || ((EN) == EWOULDBLOCK) || ((EN) == EINTR))
/* Vty read buffer size. */
#define VTY_READ_BUFSIZ 512
#define VTY_BUFSIZ 512
#define VTY_MAXHIST 20
/* Vty events */
enum event {
VTY_SERV,
VTY_READ,
VTY_WRITE,
VTY_CLOSED,
VTY_TIMEOUT_RESET,
#ifdef VTYSH
VTYSH_SERV,
VTYSH_READ,
VTYSH_WRITE
#endif /* VTYSH */
};
struct vty {
FILE *file;
/* private data, specified by creator */
void *priv;
/* File descripter of this vty. */
int fd;
/* 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 buffer. */
struct buffer *obuf;
/* Command input buffer */
char *buf;
/* 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;
/* For current referencing point of interface, route-map,
access-list etc... */
void *index;
/* For multiple level index treatment such as key chain and key. */
void *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;
int monitor;
/* In configure mode. */
int config;
};
/* Small macro to determine newline is newline only or linefeed needed. */
#define VTY_NEWLINE ((vty->type == VTY_TERM) ? "\r\n" : "\n")
static inline char *vty_newline(struct vty *vty)
{
return VTY_NEWLINE;
}
struct vty_app_info {
const char *name;
const char *version;
const char *copyright;
void *tall_ctx;
enum node_type (*go_parent_cb)(struct vty *vty);
int (*is_config_node)(struct vty *vty, int node);
};
/* Prototypes. */
void vty_init(struct vty_app_info *app_info);
int vty_read_config_file(const char *file_name, void *priv);
void vty_init_vtysh (void);
void vty_reset (void);
struct vty *vty_new (void);
struct vty *vty_create (int vty_sock, void *priv);
int vty_out (struct vty *, const char *, ...) VTY_PRINTF_ATTRIBUTE(2, 3);
int vty_out_newline(struct vty *);
int vty_read(struct vty *vty);
//void vty_time_print (struct vty *, int);
void vty_close (struct vty *);
char *vty_get_cwd (void);
void vty_log (const char *level, const char *proto, const char *fmt, va_list);
int vty_config_lock (struct vty *);
int vty_config_unlock (struct vty *);
int vty_shell (struct vty *);
int vty_shell_serv (struct vty *);
void vty_hello (struct vty *);
void *vty_current_index(struct vty *);
int vty_current_node(struct vty *vty);
extern void *tall_vty_ctx;
#endif
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