+/*
+ * tip - terminal interface program
+ */
+
+#include <sys/types.h>
+#include <sys/file.h>
+
+#include <sgtty.h>
+#include <signal.h>
+#include <stdio.h>
+#include <pwd.h>
+#include <ctype.h>
+#include <setjmp.h>
+#include <phonenumber.h>
+#include <connect.h>
+#include <errno.h>
+
+/*
+ * Remote host attributes
+ */
+char *EL; /* chars marking an EOL */
+char *CM; /* initial connection message */
+char *IE; /* EOT to expect on input */
+char *OE; /* EOT to send to complete FT */
+char *PA; /* parity to be generated */
+
+int FS; /* frame size for transfers */
+
+char *ES; /* escape character */
+char *EX; /* exceptions */
+char *FO; /* force (literal next) char*/
+char *RC; /* raise character */
+char *RE; /* script record file */
+char *PR; /* remote prompt */
+int DL; /* line delay for file transfers to remote */
+int CL; /* char delay for file transfers to remote */
+int ET; /* echocheck timeout */
+char HD; /* this host is half duplex - do local echo */
+
+/*
+ * String value table
+ */
+typedef
+ struct {
+ char *v_name; /* whose name is it */
+ char v_type; /* for interpreting set's */
+ char v_access; /* protection of touchy ones */
+ char *v_abrev; /* possible abreviation */
+ char *v_value; /* casted to a union later */
+ }
+ value_t;
+
+#define STRING 01 /* string valued */
+#define BOOL 02 /* true-false value */
+#define NUMBER 04 /* numeric value */
+#define CHAR 010 /* character value */
+
+#define WRITE 01 /* write access to variable */
+#define READ 02 /* read access */
+
+#define CHANGED 01 /* low bit is used to show modification */
+#define PUBLIC 1 /* public access rights */
+#define PRIVATE 03 /* private to definer */
+#define ROOT 05 /* root defined */
+
+#define TRUE 1
+#define FALSE 0
+
+#define ENVIRON 020 /* initialize out of the environment */
+#define IREMOTE 040 /* initialize out of remote structure */
+#define INIT 0100 /* static data space used for initialization */
+#define TMASK 017
+
+#define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */
+
+/*
+ * variable manipulation stuff --
+ * if we defined the value entry in value_t, then we couldn't
+ * initialize it in vars.c, so we cast it as needed to keep lint
+ * happy.
+ */
+typedef
+ union {
+ int zz_number;
+ short zz_boolean;
+ char zz_character;
+ int *zz_address;
+ }
+ zzhack;
+
+#define value(v) vtable[v].v_value
+
+#define boolean(v) ((((zzhack *)(&(v))))->zz_boolean)
+#define number(v) ((((zzhack *)(&(v))))->zz_number)
+#define character(v) ((((zzhack *)(&(v))))->zz_character)
+#define address(v) ((((zzhack *)(&(v))))->zz_address)
+
+/*
+ * Escape command table definitions --
+ * lookup in this table is performed when ``escapec'' is recognized
+ * at the begining of a line (as defined by the eolmarks variable).
+*/
+
+typedef
+ struct {
+ char e_char; /* char to match on */
+ char e_flags; /* experimental, priviledged */
+ char *e_help; /* help string */
+ int (*e_func)(); /* command */
+ }
+ esctable_t;
+
+#define NORM 00 /* normal protection, execute anyone */
+#define EXP 01 /* experimental, mark it with a `*' on help */
+#define PRIV 02 /* priviledged, root execute only */
+
+extern int vflag; /* verbose during reading of .tiprc file */
+extern value_t vtable[]; /* variable table */
+
+/*
+ * Definition of indices into variable table so
+ * value(DEFINE) turns into a static address.
+ */
+
+#define BEAUTIFY 0
+#define DIALTIMEOUT 1
+#define EOFREAD 2
+#define EOFWRITE 3
+#define EOL 4
+#define ESCAPE 5
+#define EXCEPTIONS 6
+#define FORCE 7
+#define FRAMESIZE 8
+#define LOG 9
+#define PROMPT 10
+#define RAISE 11
+#define RAISECHAR 12
+#define RECORD 13
+#define SCRIPT 14
+#define TABEXPAND 15
+#define VERBOSE 16
+#define SHELL 17
+#define HOME 18
+#define ECHOCHECK 19
+#define TAND 20
+#define LDELAY 21
+#define CDELAY 22
+#define ETIMEOUT 23
+#define RAWFTP 24
+#define HALFDUPLEX 25
+#define LECHO 26
+#define PARITY 27
+
+#define NOVAL ((value_t *)NULL)
+#define NOACU ((acu_t *)NULL)
+#define NOSTR ((char *)NULL)
+#define NOFILE ((FILE *)NULL)
+#define NOPWD ((struct passwd *)0)
+
+struct sgttyb arg; /* current mode of local terminal */
+struct sgttyb defarg; /* initial mode of local terminal */
+struct tchars tchars; /* current state of terminal */
+struct tchars defchars; /* initial state of terminal */
+struct ltchars ltchars; /* current local characters of terminal */
+struct ltchars deflchars; /* initial local characters of terminal */
+
+FILE *fscript; /* FILE for scripting */
+
+int fildes[2]; /* file transfer synchronization channel */
+int repdes[2]; /* read process sychronization channel */
+int FD; /* open file descriptor to remote host */
+int vflag; /* print .tiprc initialization sequence */
+int sfd; /* for ~< operation */
+int pid; /* pid of tipout */
+int stop; /* stop transfer session flag */
+int quit; /* same; but on other end */
+int intflag; /* recognized interrupt */
+int stoprompt; /* for interrupting a prompt session */
+int timedout; /* ~> transfer timedout */
+int cumode; /* simulating the "cu" program */
+
+char fname[80]; /* file name buffer for ~< */
+char copyname[80]; /* file name buffer for ~> */
+char ccc; /* synchronization character */
+char ch; /* for tipout */
+
+int odisc; /* initial tty line discipline */
+extern int disc; /* current tty discpline */
+
+extern char *ctrl();
+extern char *ctime();
+extern long time();
+extern struct passwd *getpwuid();
+extern char *getlogin();
+extern char *vinterp();
+extern char *getenv();
+extern char *rindex();
+extern char *index();
+extern char *malloc();
+extern char *connect();
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