Initial revision
diff --git a/lib/vty.h b/lib/vty.h
new file mode 100644
index 0000000..4d2a6a0
--- /dev/null
+++ b/lib/vty.h
@@ -0,0 +1,205 @@
+/* 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 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_VTY_H
+#define _ZEBRA_VTY_H
+
+#define VTY_BUFSIZ 512
+#define VTY_MAXHIST 20
+
+/* VTY struct. */
+struct vty
+{
+ /* 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;
+
+ /* What address is this vty comming from. */
+ char *address;
+
+ /* Privilege level of this vty. */
+ int privilege;
+
+ /* 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,
+ VTY_START, VTY_CONTINUE} status;
+
+ /* IAC handling */
+ unsigned char iac;
+
+ /* IAC SB handling */
+ unsigned char iac_sb_in_progress;
+ struct buffer *sb_buffer;
+
+ /* Window width/height. */
+ int width;
+ int height;
+
+ int scroll_one;
+
+ /* Configure lines. */
+ int lines;
+
+ /* Current executing function pointer. */
+ int (*func) (struct vty *, void *arg);
+
+ /* 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;
+
+ /* Thread output function. */
+ struct thread *t_output;
+
+ /* Output data pointer. */
+ int (*output_func) (struct vty *, int);
+ void (*output_clean) (struct vty *);
+ void *output_rn;
+ unsigned long output_count;
+ int output_type;
+ void *output_arg;
+};
+
+/* Integrated configuration file. */
+#define INTEGRATE_DEFAULT_CONFIG "Zebra.conf"
+
+/* Small macro to determine newline is newline only or linefeed needed. */
+#define VTY_NEWLINE ((vty->type == VTY_TERM) ? "\r\n" : "\n")
+
+/* 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
+
+/* GCC have printf type attribute check. */
+#ifdef __GNUC__
+#define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
+#else
+#define PRINTF_ATTRIBUTE(a,b)
+#endif /* __GNUC__ */
+
+/* Utility macro to convert VTY argument to unsigned integer. */
+#define VTY_GET_INTEGER(NAME,V,STR) \
+{ \
+ char *endptr = NULL; \
+ (V) = strtoul ((STR), &endptr, 10); \
+ if ((V) == ULONG_MAX || *endptr != '\0') \
+ { \
+ vty_out (vty, "%% Invalid %s value%s", NAME, VTY_NEWLINE); \
+ return CMD_WARNING; \
+ } \
+}
+
+#define VTY_GET_INTEGER_RANGE(NAME,V,STR,MIN,MAX) \
+{ \
+ char *endptr = NULL; \
+ (V) = strtoul ((STR), &endptr, 10); \
+ if ((V) == ULONG_MAX || *endptr != '\0' \
+ || (V) < (MIN) || (V) > (MAX)) \
+ { \
+ vty_out (vty, "%% Invalid %s value%s", NAME, VTY_NEWLINE); \
+ return CMD_WARNING; \
+ } \
+}
+
+/* Exported variables */
+extern char integrate_default[];
+
+/* Prototypes. */
+void vty_init (void);
+void vty_init_vtysh (void);
+void vty_reset (void);
+void vty_finish (void);
+struct vty *vty_new (void);
+int vty_out (struct vty *, const char *, ...) PRINTF_ATTRIBUTE(2, 3);
+void vty_read_config (char *, char *, char *);
+void vty_time_print (struct vty *, int);
+void vty_serv_sock (const char *, unsigned short, char *);
+void vty_close (struct vty *);
+char *vty_get_cwd (void);
+void vty_log (const char *, const char *, 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 *);
+
+#endif /* _ZEBRA_VTY_H */