17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * Copyright 2000 Sun Microsystems, Inc.  All rights reserved.
37c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
47c478bd9Sstevel@tonic-gate  */
57c478bd9Sstevel@tonic-gate /*
67c478bd9Sstevel@tonic-gate  *	Chat -- a program for automatic session establishment (i.e. dial
77c478bd9Sstevel@tonic-gate  *		the phone and log in).
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * Standard termination codes:
107c478bd9Sstevel@tonic-gate  *  0 - successful completion of the script
117c478bd9Sstevel@tonic-gate  *  1 - invalid argument, expect string too large, etc.
127c478bd9Sstevel@tonic-gate  *  2 - error on an I/O operation or fatal error condition.
137c478bd9Sstevel@tonic-gate  *  3 - timeout waiting for a simple string.
147c478bd9Sstevel@tonic-gate  *  4 - the first string declared as "ABORT"
157c478bd9Sstevel@tonic-gate  *  5 - the second string declared as "ABORT"
167c478bd9Sstevel@tonic-gate  *  6 - ... and so on for successive ABORT strings.
177c478bd9Sstevel@tonic-gate  *
187c478bd9Sstevel@tonic-gate  *	This software is in the public domain.
197c478bd9Sstevel@tonic-gate  *
207c478bd9Sstevel@tonic-gate  * -----------------
217c478bd9Sstevel@tonic-gate  *	22-May-99 added environment substitutuion, enabled with -E switch.
227c478bd9Sstevel@tonic-gate  *	Andreas Arens <andras@cityweb.de>.
237c478bd9Sstevel@tonic-gate  *
247c478bd9Sstevel@tonic-gate  *	12-May-99 added a feature to read data to be sent from a file,
257c478bd9Sstevel@tonic-gate  *	if the send string starts with @.  Idea from gpk <gpk@onramp.net>.
267c478bd9Sstevel@tonic-gate  *
277c478bd9Sstevel@tonic-gate  *	added -T and -U option and \T and \U substitution to pass a phone
287c478bd9Sstevel@tonic-gate  *	number into chat script. Two are needed for some ISDN TA applications.
297c478bd9Sstevel@tonic-gate  *	Keith Dart <kdart@cisco.com>
307c478bd9Sstevel@tonic-gate  *
317c478bd9Sstevel@tonic-gate  *
327c478bd9Sstevel@tonic-gate  *	Added SAY keyword to send output to stderr.
337c478bd9Sstevel@tonic-gate  *      This allows to turn ECHO OFF and to output specific, user selected,
347c478bd9Sstevel@tonic-gate  *      text to give progress messages. This best works when stderr
357c478bd9Sstevel@tonic-gate  *      exists (i.e.: pppd in nodetach mode).
367c478bd9Sstevel@tonic-gate  *
377c478bd9Sstevel@tonic-gate  * 	Added HANGUP directives to allow for us to be called
387c478bd9Sstevel@tonic-gate  *      back. When HANGUP is set to NO, chat will not hangup at HUP signal.
397c478bd9Sstevel@tonic-gate  *      We rely on timeouts in that case.
407c478bd9Sstevel@tonic-gate  *
417c478bd9Sstevel@tonic-gate  *      Added CLR_ABORT to clear previously set ABORT string. This has been
427c478bd9Sstevel@tonic-gate  *      dictated by the HANGUP above as "NO CARRIER" (for example) must be
437c478bd9Sstevel@tonic-gate  *      an ABORT condition until we know the other host is going to close
447c478bd9Sstevel@tonic-gate  *      the connection for call back. As soon as we have completed the
457c478bd9Sstevel@tonic-gate  *      first stage of the call back sequence, "NO CARRIER" is a valid, non
467c478bd9Sstevel@tonic-gate  *      fatal string. As soon as we got called back (probably get "CONNECT"),
477c478bd9Sstevel@tonic-gate  *      we should re-arm the ABORT "NO CARRIER". Hence the CLR_ABORT command.
487c478bd9Sstevel@tonic-gate  *      Note that CLR_ABORT packs the abort_strings[] array so that we do not
497c478bd9Sstevel@tonic-gate  *      have unused entries not being reclaimed.
507c478bd9Sstevel@tonic-gate  *
517c478bd9Sstevel@tonic-gate  *      In the same vein as above, added CLR_REPORT keyword.
527c478bd9Sstevel@tonic-gate  *
537c478bd9Sstevel@tonic-gate  *      Allow for comments. Line starting with '#' are comments and are
547c478bd9Sstevel@tonic-gate  *      ignored. If a '#' is to be expected as the first character, the
557c478bd9Sstevel@tonic-gate  *      expect string must be quoted.
567c478bd9Sstevel@tonic-gate  *
577c478bd9Sstevel@tonic-gate  *
587c478bd9Sstevel@tonic-gate  *		Francis Demierre <Francis@SwissMail.Com>
597c478bd9Sstevel@tonic-gate  * 		Thu May 15 17:15:40 MET DST 1997
607c478bd9Sstevel@tonic-gate  *
617c478bd9Sstevel@tonic-gate  *
627c478bd9Sstevel@tonic-gate  *      Added -r "report file" switch & REPORT keyword.
637c478bd9Sstevel@tonic-gate  *              Robert Geer <bgeer@xmission.com>
647c478bd9Sstevel@tonic-gate  *
657c478bd9Sstevel@tonic-gate  *      Added -s "use stderr" and -S "don't use syslog" switches.
667c478bd9Sstevel@tonic-gate  *              June 18, 1997
677c478bd9Sstevel@tonic-gate  *              Karl O. Pinc <kop@meme.com>
687c478bd9Sstevel@tonic-gate  *
697c478bd9Sstevel@tonic-gate  *
707c478bd9Sstevel@tonic-gate  *	Added -e "echo" switch & ECHO keyword
717c478bd9Sstevel@tonic-gate  *		Dick Streefland <dicks@tasking.nl>
727c478bd9Sstevel@tonic-gate  *
737c478bd9Sstevel@tonic-gate  *
747c478bd9Sstevel@tonic-gate  *	Considerable updates and modifications by
757c478bd9Sstevel@tonic-gate  *		Al Longyear <longyear@pobox.com>
767c478bd9Sstevel@tonic-gate  *		Paul Mackerras <paulus@cs.anu.edu.au>
777c478bd9Sstevel@tonic-gate  *
787c478bd9Sstevel@tonic-gate  *
797c478bd9Sstevel@tonic-gate  *	The original author is:
807c478bd9Sstevel@tonic-gate  *
817c478bd9Sstevel@tonic-gate  *		Karl Fox <karl@MorningStar.Com>
827c478bd9Sstevel@tonic-gate  *		Morning Star Technologies, Inc.
837c478bd9Sstevel@tonic-gate  *		1760 Zollinger Road
847c478bd9Sstevel@tonic-gate  *		Columbus, OH  43221
857c478bd9Sstevel@tonic-gate  *		(614)451-1883
867c478bd9Sstevel@tonic-gate  *
877c478bd9Sstevel@tonic-gate  */
887c478bd9Sstevel@tonic-gate 
897c478bd9Sstevel@tonic-gate #ifndef __STDC__
907c478bd9Sstevel@tonic-gate #define const
917c478bd9Sstevel@tonic-gate #endif
927c478bd9Sstevel@tonic-gate 
937c478bd9Sstevel@tonic-gate #include <stdio.h>
947c478bd9Sstevel@tonic-gate #include <ctype.h>
957c478bd9Sstevel@tonic-gate #include <time.h>
967c478bd9Sstevel@tonic-gate #include <fcntl.h>
977c478bd9Sstevel@tonic-gate #include <signal.h>
987c478bd9Sstevel@tonic-gate #include <errno.h>
997c478bd9Sstevel@tonic-gate #include <string.h>
1007c478bd9Sstevel@tonic-gate #include <stdlib.h>
1017c478bd9Sstevel@tonic-gate #include <unistd.h>
1027c478bd9Sstevel@tonic-gate #include <sys/types.h>
1037c478bd9Sstevel@tonic-gate #include <sys/stat.h>
1047c478bd9Sstevel@tonic-gate #include <syslog.h>
1057c478bd9Sstevel@tonic-gate 
1067c478bd9Sstevel@tonic-gate #ifndef TERMIO
1077c478bd9Sstevel@tonic-gate #undef	TERMIOS
1087c478bd9Sstevel@tonic-gate #define TERMIOS
1097c478bd9Sstevel@tonic-gate #endif
1107c478bd9Sstevel@tonic-gate 
1117c478bd9Sstevel@tonic-gate #ifdef TERMIO
1127c478bd9Sstevel@tonic-gate #include <termio.h>
1137c478bd9Sstevel@tonic-gate #endif
1147c478bd9Sstevel@tonic-gate #ifdef TERMIOS
1157c478bd9Sstevel@tonic-gate #include <termios.h>
1167c478bd9Sstevel@tonic-gate #endif
1177c478bd9Sstevel@tonic-gate 
1187c478bd9Sstevel@tonic-gate #define	STR_LEN	1024
1197c478bd9Sstevel@tonic-gate 
1207c478bd9Sstevel@tonic-gate #ifndef SIGTYPE
1217c478bd9Sstevel@tonic-gate #define SIGTYPE void
1227c478bd9Sstevel@tonic-gate #endif
1237c478bd9Sstevel@tonic-gate 
1247c478bd9Sstevel@tonic-gate #undef __P
1257c478bd9Sstevel@tonic-gate #undef __V
1267c478bd9Sstevel@tonic-gate 
1277c478bd9Sstevel@tonic-gate #ifdef __STDC__
1287c478bd9Sstevel@tonic-gate #include <stdarg.h>
1297c478bd9Sstevel@tonic-gate #define __V(x)	x
1307c478bd9Sstevel@tonic-gate #define __P(x)	x
1317c478bd9Sstevel@tonic-gate #else
1327c478bd9Sstevel@tonic-gate #include <varargs.h>
1337c478bd9Sstevel@tonic-gate #define __V(x)	(va_alist) va_dcl
1347c478bd9Sstevel@tonic-gate #define __P(x)	()
1357c478bd9Sstevel@tonic-gate #define const
1367c478bd9Sstevel@tonic-gate #endif
1377c478bd9Sstevel@tonic-gate 
1387c478bd9Sstevel@tonic-gate #ifndef O_NONBLOCK
1397c478bd9Sstevel@tonic-gate #define O_NONBLOCK	O_NDELAY
1407c478bd9Sstevel@tonic-gate #endif
1417c478bd9Sstevel@tonic-gate 
1427c478bd9Sstevel@tonic-gate #ifdef SUNOS
1437c478bd9Sstevel@tonic-gate extern int sys_nerr;
1447c478bd9Sstevel@tonic-gate extern char *sys_errlist[];
1457c478bd9Sstevel@tonic-gate #define memmove(to, from, n)	bcopy(from, to, n)
1467c478bd9Sstevel@tonic-gate #define strerror(n)		((unsigned)(n) < sys_nerr? sys_errlist[(n)] :\
1477c478bd9Sstevel@tonic-gate 				 "unknown error")
1487c478bd9Sstevel@tonic-gate #endif
1497c478bd9Sstevel@tonic-gate 
1507c478bd9Sstevel@tonic-gate /*************** Micro getopt() *********************************************/
1517c478bd9Sstevel@tonic-gate #define	OPTION(c,v)	(_O&2&&**v?*(*v)++:!c||_O&4?0:(!(_O&1)&& \
1527c478bd9Sstevel@tonic-gate 				(--c,++v),_O=4,c&&**v=='-'&&v[0][1]?*++*v=='-'\
1537c478bd9Sstevel@tonic-gate 				&&!v[0][1]?(--c,++v,0):(_O=2,*(*v)++):0))
1547c478bd9Sstevel@tonic-gate #define	OPTARG(c,v)	(_O&2?**v||(++v,--c)?(_O=1,--c,*v++): \
1557c478bd9Sstevel@tonic-gate 				(_O=4,(char*)0):(char*)0)
1567c478bd9Sstevel@tonic-gate #define	OPTONLYARG(c,v)	(_O&2&&**v?(_O=1,--c,*v++):(char*)0)
1577c478bd9Sstevel@tonic-gate #define	ARG(c,v)	(c?(--c,*v++):(char*)0)
1587c478bd9Sstevel@tonic-gate 
1597c478bd9Sstevel@tonic-gate static int _O = 0;		/* Internal state */
1607c478bd9Sstevel@tonic-gate /*************** Micro getopt() *********************************************/
1617c478bd9Sstevel@tonic-gate 
1627c478bd9Sstevel@tonic-gate char *program_name;
1637c478bd9Sstevel@tonic-gate 
1647c478bd9Sstevel@tonic-gate #define	MAX_ABORTS		50
1657c478bd9Sstevel@tonic-gate #define	MAX_REPORTS		50
1667c478bd9Sstevel@tonic-gate #define	DEFAULT_CHAT_TIMEOUT	45
1677c478bd9Sstevel@tonic-gate 
1687c478bd9Sstevel@tonic-gate int echo          = 0;
1697c478bd9Sstevel@tonic-gate int verbose       = 0;
1707c478bd9Sstevel@tonic-gate int to_log        = 1;
1717c478bd9Sstevel@tonic-gate int to_stderr     = 0;
1727c478bd9Sstevel@tonic-gate int Verbose       = 0;
1737c478bd9Sstevel@tonic-gate int quiet         = 0;
1747c478bd9Sstevel@tonic-gate int report        = 0;
1757c478bd9Sstevel@tonic-gate int use_env       = 0;
1767c478bd9Sstevel@tonic-gate int exit_code     = 0;
1777c478bd9Sstevel@tonic-gate FILE* report_fp   = (FILE *) 0;
1787c478bd9Sstevel@tonic-gate char *report_file = (char *) 0;
1797c478bd9Sstevel@tonic-gate char *chat_file   = (char *) 0;
1807c478bd9Sstevel@tonic-gate char *phone_num   = (char *) 0;
1817c478bd9Sstevel@tonic-gate char *phone_num2  = (char *) 0;
1827c478bd9Sstevel@tonic-gate int timeout       = DEFAULT_CHAT_TIMEOUT;
1837c478bd9Sstevel@tonic-gate 
1847c478bd9Sstevel@tonic-gate int have_tty_parameters = 0;
1857c478bd9Sstevel@tonic-gate 
1867c478bd9Sstevel@tonic-gate #ifdef TERMIO
1877c478bd9Sstevel@tonic-gate #define term_parms struct termio
1887c478bd9Sstevel@tonic-gate #define get_term_param(param) ioctl(0, TCGETA, param)
1897c478bd9Sstevel@tonic-gate #define set_term_param(param) ioctl(0, TCSETA, param)
1907c478bd9Sstevel@tonic-gate struct termio saved_tty_parameters;
1917c478bd9Sstevel@tonic-gate #endif
1927c478bd9Sstevel@tonic-gate 
1937c478bd9Sstevel@tonic-gate #ifdef TERMIOS
1947c478bd9Sstevel@tonic-gate #define term_parms struct termios
1957c478bd9Sstevel@tonic-gate #define get_term_param(param) tcgetattr(0, param)
1967c478bd9Sstevel@tonic-gate #define set_term_param(param) tcsetattr(0, TCSANOW, param)
1977c478bd9Sstevel@tonic-gate struct termios saved_tty_parameters;
1987c478bd9Sstevel@tonic-gate #endif
1997c478bd9Sstevel@tonic-gate 
2007c478bd9Sstevel@tonic-gate char *abort_string[MAX_ABORTS], *fail_reason = (char *)0,
2017c478bd9Sstevel@tonic-gate 	fail_buffer[50];
2027c478bd9Sstevel@tonic-gate int n_aborts = 0, abort_next = 0, timeout_next = 0, echo_next = 0;
2037c478bd9Sstevel@tonic-gate int clear_abort_next = 0;
2047c478bd9Sstevel@tonic-gate 
2057c478bd9Sstevel@tonic-gate char *report_string[MAX_REPORTS] ;
2067c478bd9Sstevel@tonic-gate char  report_buffer[50] ;
2077c478bd9Sstevel@tonic-gate int n_reports = 0, report_next = 0, report_gathering = 0 ;
2087c478bd9Sstevel@tonic-gate int clear_report_next = 0;
2097c478bd9Sstevel@tonic-gate 
2107c478bd9Sstevel@tonic-gate int say_next = 0, hup_next = 0;
2117c478bd9Sstevel@tonic-gate 
2127c478bd9Sstevel@tonic-gate void *dup_mem __P((void *b, size_t c));
2137c478bd9Sstevel@tonic-gate void *copy_of __P((char *s));
2147c478bd9Sstevel@tonic-gate void usage __P((void));
2157c478bd9Sstevel@tonic-gate void logf __P((const char *fmt, ...));
2167c478bd9Sstevel@tonic-gate void fatal __P((int code, const char *fmt, ...));
2177c478bd9Sstevel@tonic-gate SIGTYPE sigalrm __P((int signo));
2187c478bd9Sstevel@tonic-gate SIGTYPE sigint __P((int signo));
2197c478bd9Sstevel@tonic-gate SIGTYPE sigterm __P((int signo));
2207c478bd9Sstevel@tonic-gate SIGTYPE sighup __P((int signo));
2217c478bd9Sstevel@tonic-gate void unalarm __P((void));
2227c478bd9Sstevel@tonic-gate void init __P((void));
2237c478bd9Sstevel@tonic-gate void set_tty_parameters __P((void));
2247c478bd9Sstevel@tonic-gate void echo_stderr __P((int));
2257c478bd9Sstevel@tonic-gate void break_sequence __P((void));
2267c478bd9Sstevel@tonic-gate void terminate __P((int status));
2277c478bd9Sstevel@tonic-gate void do_file __P((char *chat_file));
2287c478bd9Sstevel@tonic-gate int  get_string __P((register char *string));
2297c478bd9Sstevel@tonic-gate int  put_string __P((register char *s));
2307c478bd9Sstevel@tonic-gate int  write_char __P((int c));
2317c478bd9Sstevel@tonic-gate int  put_char __P((int c));
2327c478bd9Sstevel@tonic-gate int  get_char __P((void));
2337c478bd9Sstevel@tonic-gate void chat_send __P((register char *s));
2347c478bd9Sstevel@tonic-gate char *character __P((int c));
2357c478bd9Sstevel@tonic-gate void chat_expect __P((register char *s));
2367c478bd9Sstevel@tonic-gate char *clean __P((register char *s, int sending));
2377c478bd9Sstevel@tonic-gate void break_sequence __P((void));
2387c478bd9Sstevel@tonic-gate void terminate __P((int status));
2397c478bd9Sstevel@tonic-gate void pack_array __P((char **array, int end));
2407c478bd9Sstevel@tonic-gate char *expect_strtok __P((char *, char *));
2417c478bd9Sstevel@tonic-gate int vfmtmsg __P((char *, int, const char *, va_list));	/* vsprintf++ */
2427c478bd9Sstevel@tonic-gate 
2437c478bd9Sstevel@tonic-gate int main __P((int, char *[]));
2447c478bd9Sstevel@tonic-gate 
dup_mem(b,c)2457c478bd9Sstevel@tonic-gate void *dup_mem(b, c)
2467c478bd9Sstevel@tonic-gate void *b;
2477c478bd9Sstevel@tonic-gate size_t c;
2487c478bd9Sstevel@tonic-gate {
2497c478bd9Sstevel@tonic-gate     void *ans = malloc (c);
2507c478bd9Sstevel@tonic-gate     if (!ans)
2517c478bd9Sstevel@tonic-gate 	fatal(2, "memory error!");
2527c478bd9Sstevel@tonic-gate 
2537c478bd9Sstevel@tonic-gate     memcpy (ans, b, c);
2547c478bd9Sstevel@tonic-gate     return ans;
2557c478bd9Sstevel@tonic-gate }
2567c478bd9Sstevel@tonic-gate 
copy_of(s)2577c478bd9Sstevel@tonic-gate void *copy_of (s)
2587c478bd9Sstevel@tonic-gate char *s;
2597c478bd9Sstevel@tonic-gate {
2607c478bd9Sstevel@tonic-gate     return dup_mem (s, strlen (s) + 1);
2617c478bd9Sstevel@tonic-gate }
2627c478bd9Sstevel@tonic-gate 
2637c478bd9Sstevel@tonic-gate /*
2647c478bd9Sstevel@tonic-gate  * chat [ -v ] [ -E ] [ -T number ] [ -U number ] [ -t timeout ] [ -f chat-file ] \
2657c478bd9Sstevel@tonic-gate  * [ -r report-file ] \
2667c478bd9Sstevel@tonic-gate  *		[...[[expect[-say[-expect...]] say expect[-say[-expect]] ...]]]
2677c478bd9Sstevel@tonic-gate  *
2687c478bd9Sstevel@tonic-gate  *	Perform a UUCP-dialer-like chat script on stdin and stdout.
2697c478bd9Sstevel@tonic-gate  */
2707c478bd9Sstevel@tonic-gate int
main(argc,argv)2717c478bd9Sstevel@tonic-gate main(argc, argv)
2727c478bd9Sstevel@tonic-gate      int argc;
2737c478bd9Sstevel@tonic-gate      char **argv;
2747c478bd9Sstevel@tonic-gate {
2757c478bd9Sstevel@tonic-gate     int option;
2767c478bd9Sstevel@tonic-gate     char *arg;
2777c478bd9Sstevel@tonic-gate 
2787c478bd9Sstevel@tonic-gate     program_name = *argv;
2797c478bd9Sstevel@tonic-gate     tzset();
2807c478bd9Sstevel@tonic-gate 
2817c478bd9Sstevel@tonic-gate     while ((option = OPTION(argc, argv)) != 0) {
2827c478bd9Sstevel@tonic-gate 	switch (option) {
2837c478bd9Sstevel@tonic-gate 	case 'e':
2847c478bd9Sstevel@tonic-gate 	    ++echo;
2857c478bd9Sstevel@tonic-gate 	    break;
2867c478bd9Sstevel@tonic-gate 
2877c478bd9Sstevel@tonic-gate 	case 'E':
2887c478bd9Sstevel@tonic-gate 	    ++use_env;
2897c478bd9Sstevel@tonic-gate 	    break;
2907c478bd9Sstevel@tonic-gate 
2917c478bd9Sstevel@tonic-gate 	case 'v':
2927c478bd9Sstevel@tonic-gate 	    ++verbose;
2937c478bd9Sstevel@tonic-gate 	    break;
2947c478bd9Sstevel@tonic-gate 
2957c478bd9Sstevel@tonic-gate 	case 'V':
2967c478bd9Sstevel@tonic-gate 	    ++Verbose;
2977c478bd9Sstevel@tonic-gate 	    break;
2987c478bd9Sstevel@tonic-gate 
2997c478bd9Sstevel@tonic-gate 	case 's':
3007c478bd9Sstevel@tonic-gate 	    ++to_stderr;
3017c478bd9Sstevel@tonic-gate 	    break;
3027c478bd9Sstevel@tonic-gate 
3037c478bd9Sstevel@tonic-gate 	case 'S':
3047c478bd9Sstevel@tonic-gate 	    to_log = 0;
3057c478bd9Sstevel@tonic-gate 	    break;
3067c478bd9Sstevel@tonic-gate 
3077c478bd9Sstevel@tonic-gate 	case 'f':
3087c478bd9Sstevel@tonic-gate 	    if ((arg = OPTARG(argc, argv)) != NULL)
3097c478bd9Sstevel@tonic-gate 		    chat_file = copy_of(arg);
3107c478bd9Sstevel@tonic-gate 	    else
3117c478bd9Sstevel@tonic-gate 		usage();
3127c478bd9Sstevel@tonic-gate 	    break;
3137c478bd9Sstevel@tonic-gate 
3147c478bd9Sstevel@tonic-gate 	case 't':
3157c478bd9Sstevel@tonic-gate 	    if ((arg = OPTARG(argc, argv)) != NULL)
3167c478bd9Sstevel@tonic-gate 		timeout = atoi(arg);
3177c478bd9Sstevel@tonic-gate 	    else
3187c478bd9Sstevel@tonic-gate 		usage();
3197c478bd9Sstevel@tonic-gate 	    break;
3207c478bd9Sstevel@tonic-gate 
3217c478bd9Sstevel@tonic-gate 	case 'r':
3227c478bd9Sstevel@tonic-gate 	    arg = OPTARG (argc, argv);
3237c478bd9Sstevel@tonic-gate 	    if (arg) {
3247c478bd9Sstevel@tonic-gate 		if (report_fp != NULL)
3257c478bd9Sstevel@tonic-gate 		    fclose (report_fp);
3267c478bd9Sstevel@tonic-gate 		report_file = copy_of (arg);
3277c478bd9Sstevel@tonic-gate 		report_fp   = fopen (report_file, "a");
3287c478bd9Sstevel@tonic-gate 		if (report_fp != NULL) {
3297c478bd9Sstevel@tonic-gate 		    if (verbose)
3307c478bd9Sstevel@tonic-gate 			fprintf (report_fp, "Opening \"%s\"...\n",
3317c478bd9Sstevel@tonic-gate 				 report_file);
3327c478bd9Sstevel@tonic-gate 		    report = 1;
3337c478bd9Sstevel@tonic-gate 		}
3347c478bd9Sstevel@tonic-gate 	    }
3357c478bd9Sstevel@tonic-gate 	    break;
3367c478bd9Sstevel@tonic-gate 
3377c478bd9Sstevel@tonic-gate 	case 'T':
3387c478bd9Sstevel@tonic-gate 	    if ((arg = OPTARG(argc, argv)) != NULL)
3397c478bd9Sstevel@tonic-gate 		phone_num = copy_of(arg);
3407c478bd9Sstevel@tonic-gate 	    else
3417c478bd9Sstevel@tonic-gate 		usage();
3427c478bd9Sstevel@tonic-gate 	    break;
3437c478bd9Sstevel@tonic-gate 
3447c478bd9Sstevel@tonic-gate 	case 'U':
3457c478bd9Sstevel@tonic-gate 	    if ((arg = OPTARG(argc, argv)) != NULL)
3467c478bd9Sstevel@tonic-gate 		phone_num2 = copy_of(arg);
3477c478bd9Sstevel@tonic-gate 	    else
3487c478bd9Sstevel@tonic-gate 		usage();
3497c478bd9Sstevel@tonic-gate 	    break;
3507c478bd9Sstevel@tonic-gate 
3517c478bd9Sstevel@tonic-gate 	default:
3527c478bd9Sstevel@tonic-gate 	    usage();
3537c478bd9Sstevel@tonic-gate 	    break;
3547c478bd9Sstevel@tonic-gate 	}
3557c478bd9Sstevel@tonic-gate     }
3567c478bd9Sstevel@tonic-gate /*
3577c478bd9Sstevel@tonic-gate  * Default the report file to the stderr location
3587c478bd9Sstevel@tonic-gate  */
3597c478bd9Sstevel@tonic-gate     if (report_fp == NULL)
3607c478bd9Sstevel@tonic-gate 	report_fp = stderr;
3617c478bd9Sstevel@tonic-gate 
3627c478bd9Sstevel@tonic-gate     if (to_log) {
3637c478bd9Sstevel@tonic-gate #ifdef ultrix
3647c478bd9Sstevel@tonic-gate 	openlog("chat", LOG_PID);
3657c478bd9Sstevel@tonic-gate #else
3667c478bd9Sstevel@tonic-gate 	openlog("chat", LOG_PID | LOG_NDELAY, LOG_LOCAL2);
3677c478bd9Sstevel@tonic-gate 
3687c478bd9Sstevel@tonic-gate 	if (verbose)
3697c478bd9Sstevel@tonic-gate 	    setlogmask(LOG_UPTO(LOG_INFO));
3707c478bd9Sstevel@tonic-gate 	else
3717c478bd9Sstevel@tonic-gate 	    setlogmask(LOG_UPTO(LOG_WARNING));
3727c478bd9Sstevel@tonic-gate #endif
3737c478bd9Sstevel@tonic-gate     }
3747c478bd9Sstevel@tonic-gate 
3757c478bd9Sstevel@tonic-gate     init();
3767c478bd9Sstevel@tonic-gate 
3777c478bd9Sstevel@tonic-gate     if (chat_file != NULL) {
3787c478bd9Sstevel@tonic-gate 	arg = ARG(argc, argv);
3797c478bd9Sstevel@tonic-gate 	if (arg != NULL)
3807c478bd9Sstevel@tonic-gate 	    usage();
3817c478bd9Sstevel@tonic-gate 	else
3827c478bd9Sstevel@tonic-gate 	    do_file (chat_file);
3837c478bd9Sstevel@tonic-gate     } else {
3847c478bd9Sstevel@tonic-gate 	while ((arg = ARG(argc, argv)) != NULL) {
3857c478bd9Sstevel@tonic-gate 	    chat_expect(arg);
3867c478bd9Sstevel@tonic-gate 
3877c478bd9Sstevel@tonic-gate 	    if ((arg = ARG(argc, argv)) != NULL)
3887c478bd9Sstevel@tonic-gate 		chat_send(arg);
3897c478bd9Sstevel@tonic-gate 	}
3907c478bd9Sstevel@tonic-gate     }
3917c478bd9Sstevel@tonic-gate 
3927c478bd9Sstevel@tonic-gate     terminate(0);
3937c478bd9Sstevel@tonic-gate     return 0;
3947c478bd9Sstevel@tonic-gate }
3957c478bd9Sstevel@tonic-gate 
3967c478bd9Sstevel@tonic-gate /*
3977c478bd9Sstevel@tonic-gate  *  Process a chat script when read from a file.
3987c478bd9Sstevel@tonic-gate  */
3997c478bd9Sstevel@tonic-gate 
do_file(chat_file)4007c478bd9Sstevel@tonic-gate void do_file (chat_file)
4017c478bd9Sstevel@tonic-gate char *chat_file;
4027c478bd9Sstevel@tonic-gate {
4037c478bd9Sstevel@tonic-gate     int linect, sendflg;
4047c478bd9Sstevel@tonic-gate     char *sp, *arg, quote;
4057c478bd9Sstevel@tonic-gate     char buf [STR_LEN];
4067c478bd9Sstevel@tonic-gate     FILE *cfp;
4077c478bd9Sstevel@tonic-gate 
4087c478bd9Sstevel@tonic-gate     cfp = fopen (chat_file, "r");
4097c478bd9Sstevel@tonic-gate     if (cfp == NULL)
4107c478bd9Sstevel@tonic-gate 	fatal(1, "%s -- open failed: %m", chat_file);
4117c478bd9Sstevel@tonic-gate 
4127c478bd9Sstevel@tonic-gate     linect = 0;
4137c478bd9Sstevel@tonic-gate     sendflg = 0;
4147c478bd9Sstevel@tonic-gate 
4157c478bd9Sstevel@tonic-gate     while (fgets(buf, STR_LEN, cfp) != NULL) {
4167c478bd9Sstevel@tonic-gate 	sp = strchr (buf, '\n');
4177c478bd9Sstevel@tonic-gate 	if (sp)
4187c478bd9Sstevel@tonic-gate 	    *sp = '\0';
4197c478bd9Sstevel@tonic-gate 
4207c478bd9Sstevel@tonic-gate 	linect++;
4217c478bd9Sstevel@tonic-gate 	sp = buf;
4227c478bd9Sstevel@tonic-gate 
4237c478bd9Sstevel@tonic-gate         /* lines starting with '#' are comments. If a real '#'
4247c478bd9Sstevel@tonic-gate            is to be expected, it should be quoted .... */
4257c478bd9Sstevel@tonic-gate         if ( *sp == '#' )
4267c478bd9Sstevel@tonic-gate 	    continue;
4277c478bd9Sstevel@tonic-gate 
4287c478bd9Sstevel@tonic-gate 	while (*sp != '\0') {
4297c478bd9Sstevel@tonic-gate 	    if (*sp == ' ' || *sp == '\t') {
4307c478bd9Sstevel@tonic-gate 		++sp;
4317c478bd9Sstevel@tonic-gate 		continue;
4327c478bd9Sstevel@tonic-gate 	    }
4337c478bd9Sstevel@tonic-gate 
4347c478bd9Sstevel@tonic-gate 	    if (*sp == '"' || *sp == '\'') {
4357c478bd9Sstevel@tonic-gate 		quote = *sp++;
4367c478bd9Sstevel@tonic-gate 		arg = sp;
4377c478bd9Sstevel@tonic-gate 		while (*sp != quote) {
4387c478bd9Sstevel@tonic-gate 		    if (*sp == '\0')
4397c478bd9Sstevel@tonic-gate 			fatal(1, "unterminated quote (line %d)", linect);
4407c478bd9Sstevel@tonic-gate 
4417c478bd9Sstevel@tonic-gate 		    if (*sp++ == '\\') {
4427c478bd9Sstevel@tonic-gate 			if (*sp != '\0')
4437c478bd9Sstevel@tonic-gate 			    ++sp;
4447c478bd9Sstevel@tonic-gate 		    }
4457c478bd9Sstevel@tonic-gate 		}
4467c478bd9Sstevel@tonic-gate 	    }
4477c478bd9Sstevel@tonic-gate 	    else {
4487c478bd9Sstevel@tonic-gate 		arg = sp;
4497c478bd9Sstevel@tonic-gate 		while (*sp != '\0' && *sp != ' ' && *sp != '\t')
4507c478bd9Sstevel@tonic-gate 		    ++sp;
4517c478bd9Sstevel@tonic-gate 	    }
4527c478bd9Sstevel@tonic-gate 
4537c478bd9Sstevel@tonic-gate 	    if (*sp != '\0')
4547c478bd9Sstevel@tonic-gate 		*sp++ = '\0';
4557c478bd9Sstevel@tonic-gate 
4567c478bd9Sstevel@tonic-gate 	    if (sendflg)
4577c478bd9Sstevel@tonic-gate 		chat_send (arg);
4587c478bd9Sstevel@tonic-gate 	    else
4597c478bd9Sstevel@tonic-gate 		chat_expect (arg);
4607c478bd9Sstevel@tonic-gate 	    sendflg = !sendflg;
4617c478bd9Sstevel@tonic-gate 	}
4627c478bd9Sstevel@tonic-gate     }
4637c478bd9Sstevel@tonic-gate     fclose (cfp);
4647c478bd9Sstevel@tonic-gate }
4657c478bd9Sstevel@tonic-gate 
4667c478bd9Sstevel@tonic-gate /*
4677c478bd9Sstevel@tonic-gate  *	We got an error parsing the command line.
4687c478bd9Sstevel@tonic-gate  */
usage()4697c478bd9Sstevel@tonic-gate void usage()
4707c478bd9Sstevel@tonic-gate {
4717c478bd9Sstevel@tonic-gate     fprintf(stderr, "\
4727c478bd9Sstevel@tonic-gate Usage: %s [-e] [-E] [-v] [-V] [-t timeout] [-r report-file]\n\
4737c478bd9Sstevel@tonic-gate      [-T phone-number] [-U phone-number2] {-f chat-file | chat-script}\n", program_name);
4747c478bd9Sstevel@tonic-gate     exit(1);
4757c478bd9Sstevel@tonic-gate }
4767c478bd9Sstevel@tonic-gate 
4777c478bd9Sstevel@tonic-gate char line[1024];
4787c478bd9Sstevel@tonic-gate 
4797c478bd9Sstevel@tonic-gate /*
4807c478bd9Sstevel@tonic-gate  * Send a message to syslog and/or stderr.
4817c478bd9Sstevel@tonic-gate  */
logf(const char * fmt,...)4827c478bd9Sstevel@tonic-gate void logf __V((const char *fmt, ...))
4837c478bd9Sstevel@tonic-gate {
4847c478bd9Sstevel@tonic-gate     va_list args;
4857c478bd9Sstevel@tonic-gate 
4867c478bd9Sstevel@tonic-gate #ifdef __STDC__
4877c478bd9Sstevel@tonic-gate     va_start(args, fmt);
4887c478bd9Sstevel@tonic-gate #else
4897c478bd9Sstevel@tonic-gate     char *fmt;
4907c478bd9Sstevel@tonic-gate     va_start(args);
4917c478bd9Sstevel@tonic-gate     fmt = va_arg(args, char *);
4927c478bd9Sstevel@tonic-gate #endif
4937c478bd9Sstevel@tonic-gate 
4947c478bd9Sstevel@tonic-gate     vfmtmsg(line, sizeof(line), fmt, args);
4957c478bd9Sstevel@tonic-gate     if (to_log)
4967c478bd9Sstevel@tonic-gate 	syslog(LOG_INFO, "%s", line);
4977c478bd9Sstevel@tonic-gate     if (to_stderr)
4987c478bd9Sstevel@tonic-gate 	fprintf(stderr, "%s\n", line);
4997c478bd9Sstevel@tonic-gate }
5007c478bd9Sstevel@tonic-gate 
5017c478bd9Sstevel@tonic-gate /*
5027c478bd9Sstevel@tonic-gate  *	Print an error message and terminate.
5037c478bd9Sstevel@tonic-gate  */
5047c478bd9Sstevel@tonic-gate 
fatal(int code,const char * fmt,...)5057c478bd9Sstevel@tonic-gate void fatal __V((int code, const char *fmt, ...))
5067c478bd9Sstevel@tonic-gate {
5077c478bd9Sstevel@tonic-gate     va_list args;
5087c478bd9Sstevel@tonic-gate 
5097c478bd9Sstevel@tonic-gate #ifdef __STDC__
5107c478bd9Sstevel@tonic-gate     va_start(args, fmt);
5117c478bd9Sstevel@tonic-gate #else
5127c478bd9Sstevel@tonic-gate     int code;
5137c478bd9Sstevel@tonic-gate     char *fmt;
5147c478bd9Sstevel@tonic-gate     va_start(args);
5157c478bd9Sstevel@tonic-gate     code = va_arg(args, int);
5167c478bd9Sstevel@tonic-gate     fmt = va_arg(args, char *);
5177c478bd9Sstevel@tonic-gate #endif
5187c478bd9Sstevel@tonic-gate 
5197c478bd9Sstevel@tonic-gate     vfmtmsg(line, sizeof(line), fmt, args);
5207c478bd9Sstevel@tonic-gate     if (to_log)
5217c478bd9Sstevel@tonic-gate 	syslog(LOG_ERR, "%s", line);
5227c478bd9Sstevel@tonic-gate     if (to_stderr)
5237c478bd9Sstevel@tonic-gate 	fprintf(stderr, "%s\n", line);
5247c478bd9Sstevel@tonic-gate     terminate(code);
5257c478bd9Sstevel@tonic-gate }
5267c478bd9Sstevel@tonic-gate 
5277c478bd9Sstevel@tonic-gate int alarmed = 0;
5287c478bd9Sstevel@tonic-gate 
sigalrm(signo)5297c478bd9Sstevel@tonic-gate SIGTYPE sigalrm(signo)
5307c478bd9Sstevel@tonic-gate int signo;
5317c478bd9Sstevel@tonic-gate {
5327c478bd9Sstevel@tonic-gate     int flags;
5337c478bd9Sstevel@tonic-gate 
5347c478bd9Sstevel@tonic-gate     alarm(1);
5357c478bd9Sstevel@tonic-gate     alarmed = 1;		/* Reset alarm to avoid race window */
5367c478bd9Sstevel@tonic-gate     signal(SIGALRM, sigalrm);	/* that can cause hanging in read() */
5377c478bd9Sstevel@tonic-gate 
5387c478bd9Sstevel@tonic-gate     if ((flags = fcntl(0, F_GETFL, 0)) == -1)
5397c478bd9Sstevel@tonic-gate 	fatal(2, "Can't get file mode flags on stdin: %m");
5407c478bd9Sstevel@tonic-gate 
5417c478bd9Sstevel@tonic-gate     if (fcntl(0, F_SETFL, flags | O_NONBLOCK) == -1)
5427c478bd9Sstevel@tonic-gate 	fatal(2, "Can't set file mode flags on stdin: %m");
5437c478bd9Sstevel@tonic-gate 
5447c478bd9Sstevel@tonic-gate     if (verbose)
5457c478bd9Sstevel@tonic-gate 	logf("alarm");
5467c478bd9Sstevel@tonic-gate }
5477c478bd9Sstevel@tonic-gate 
unalarm()5487c478bd9Sstevel@tonic-gate void unalarm()
5497c478bd9Sstevel@tonic-gate {
5507c478bd9Sstevel@tonic-gate     int flags;
5517c478bd9Sstevel@tonic-gate 
5527c478bd9Sstevel@tonic-gate     if ((flags = fcntl(0, F_GETFL, 0)) == -1)
5537c478bd9Sstevel@tonic-gate 	fatal(2, "Can't get file mode flags on stdin: %m");
5547c478bd9Sstevel@tonic-gate 
5557c478bd9Sstevel@tonic-gate     if (fcntl(0, F_SETFL, flags & ~O_NONBLOCK) == -1)
5567c478bd9Sstevel@tonic-gate 	fatal(2, "Can't set file mode flags on stdin: %m");
5577c478bd9Sstevel@tonic-gate }
5587c478bd9Sstevel@tonic-gate 
sigint(signo)5597c478bd9Sstevel@tonic-gate SIGTYPE sigint(signo)
5607c478bd9Sstevel@tonic-gate int signo;
5617c478bd9Sstevel@tonic-gate {
5627c478bd9Sstevel@tonic-gate     fatal(2, "SIGINT");
5637c478bd9Sstevel@tonic-gate }
5647c478bd9Sstevel@tonic-gate 
sigterm(signo)5657c478bd9Sstevel@tonic-gate SIGTYPE sigterm(signo)
5667c478bd9Sstevel@tonic-gate int signo;
5677c478bd9Sstevel@tonic-gate {
5687c478bd9Sstevel@tonic-gate     fatal(2, "SIGTERM");
5697c478bd9Sstevel@tonic-gate }
5707c478bd9Sstevel@tonic-gate 
sighup(signo)5717c478bd9Sstevel@tonic-gate SIGTYPE sighup(signo)
5727c478bd9Sstevel@tonic-gate int signo;
5737c478bd9Sstevel@tonic-gate {
5747c478bd9Sstevel@tonic-gate     fatal(2, "SIGHUP");
5757c478bd9Sstevel@tonic-gate }
5767c478bd9Sstevel@tonic-gate 
init()5777c478bd9Sstevel@tonic-gate void init()
5787c478bd9Sstevel@tonic-gate {
5797c478bd9Sstevel@tonic-gate     signal(SIGINT, sigint);
5807c478bd9Sstevel@tonic-gate     signal(SIGTERM, sigterm);
5817c478bd9Sstevel@tonic-gate     signal(SIGHUP, sighup);
5827c478bd9Sstevel@tonic-gate 
5837c478bd9Sstevel@tonic-gate     set_tty_parameters();
5847c478bd9Sstevel@tonic-gate     signal(SIGALRM, sigalrm);
5857c478bd9Sstevel@tonic-gate     alarm(0);
5867c478bd9Sstevel@tonic-gate     alarmed = 0;
5877c478bd9Sstevel@tonic-gate }
5887c478bd9Sstevel@tonic-gate 
set_tty_parameters()5897c478bd9Sstevel@tonic-gate void set_tty_parameters()
5907c478bd9Sstevel@tonic-gate {
5917c478bd9Sstevel@tonic-gate #if defined(get_term_param)
5927c478bd9Sstevel@tonic-gate     term_parms t;
5937c478bd9Sstevel@tonic-gate 
5947c478bd9Sstevel@tonic-gate     if (get_term_param (&t) < 0)
5957c478bd9Sstevel@tonic-gate 	fatal(2, "Can't get terminal parameters: %m");
5967c478bd9Sstevel@tonic-gate 
5977c478bd9Sstevel@tonic-gate     saved_tty_parameters = t;
5987c478bd9Sstevel@tonic-gate     have_tty_parameters  = 1;
5997c478bd9Sstevel@tonic-gate 
6007c478bd9Sstevel@tonic-gate     t.c_iflag     |= IGNBRK | ISTRIP | IGNPAR;
6017c478bd9Sstevel@tonic-gate     t.c_oflag      = 0;
6027c478bd9Sstevel@tonic-gate     t.c_lflag      = 0;
6037c478bd9Sstevel@tonic-gate     t.c_cc[VERASE] =
6047c478bd9Sstevel@tonic-gate     t.c_cc[VKILL]  = 0;
6057c478bd9Sstevel@tonic-gate     t.c_cc[VMIN]   = 1;
6067c478bd9Sstevel@tonic-gate     t.c_cc[VTIME]  = 0;
6077c478bd9Sstevel@tonic-gate 
6087c478bd9Sstevel@tonic-gate     if (set_term_param (&t) < 0)
6097c478bd9Sstevel@tonic-gate 	fatal(2, "Can't set terminal parameters: %m");
6107c478bd9Sstevel@tonic-gate #endif
6117c478bd9Sstevel@tonic-gate }
6127c478bd9Sstevel@tonic-gate 
break_sequence()6137c478bd9Sstevel@tonic-gate void break_sequence()
6147c478bd9Sstevel@tonic-gate {
6157c478bd9Sstevel@tonic-gate #ifdef TERMIOS
6167c478bd9Sstevel@tonic-gate     tcsendbreak (0, 0);
6177c478bd9Sstevel@tonic-gate #endif
6187c478bd9Sstevel@tonic-gate }
6197c478bd9Sstevel@tonic-gate 
terminate(status)6207c478bd9Sstevel@tonic-gate void terminate(status)
6217c478bd9Sstevel@tonic-gate int status;
6227c478bd9Sstevel@tonic-gate {
6237c478bd9Sstevel@tonic-gate     static int terminating = 0;
6247c478bd9Sstevel@tonic-gate 
6257c478bd9Sstevel@tonic-gate     if (terminating)
6267c478bd9Sstevel@tonic-gate 	exit(status);
6277c478bd9Sstevel@tonic-gate     terminating = 1;
6287c478bd9Sstevel@tonic-gate     echo_stderr(-1);
6297c478bd9Sstevel@tonic-gate /*
6307c478bd9Sstevel@tonic-gate  * Allow the last of the report string to be gathered before we terminate.
6317c478bd9Sstevel@tonic-gate  */
6327c478bd9Sstevel@tonic-gate     if (report_gathering) {
6337c478bd9Sstevel@tonic-gate 	int c, rep_len;
6347c478bd9Sstevel@tonic-gate 
6357c478bd9Sstevel@tonic-gate 	rep_len = strlen(report_buffer);
6367c478bd9Sstevel@tonic-gate 	while (rep_len + 1 <= sizeof(report_buffer)) {
6377c478bd9Sstevel@tonic-gate 	    alarm(1);
6387c478bd9Sstevel@tonic-gate 	    c = get_char();
6397c478bd9Sstevel@tonic-gate 	    alarm(0);
6407c478bd9Sstevel@tonic-gate 	    if (c < 0 || iscntrl(c))
6417c478bd9Sstevel@tonic-gate 		break;
6427c478bd9Sstevel@tonic-gate 	    report_buffer[rep_len] = c;
6437c478bd9Sstevel@tonic-gate 	    ++rep_len;
6447c478bd9Sstevel@tonic-gate 	}
6457c478bd9Sstevel@tonic-gate 	report_buffer[rep_len] = 0;
6467c478bd9Sstevel@tonic-gate 	fprintf (report_fp, "chat:  %s\n", report_buffer);
6477c478bd9Sstevel@tonic-gate     }
6487c478bd9Sstevel@tonic-gate     if (report_file != (char *) 0 && report_fp != (FILE *) NULL) {
6497c478bd9Sstevel@tonic-gate 	if (verbose)
6507c478bd9Sstevel@tonic-gate 	    fprintf (report_fp, "Closing \"%s\".\n", report_file);
6517c478bd9Sstevel@tonic-gate 	fclose (report_fp);
6527c478bd9Sstevel@tonic-gate 	report_fp = (FILE *) NULL;
6537c478bd9Sstevel@tonic-gate     }
6547c478bd9Sstevel@tonic-gate 
6557c478bd9Sstevel@tonic-gate #if defined(get_term_param)
6567c478bd9Sstevel@tonic-gate     if (have_tty_parameters) {
6577c478bd9Sstevel@tonic-gate 	if (set_term_param (&saved_tty_parameters) < 0)
6587c478bd9Sstevel@tonic-gate 	    fatal(2, "Can't restore terminal parameters: %m");
6597c478bd9Sstevel@tonic-gate     }
6607c478bd9Sstevel@tonic-gate #endif
6617c478bd9Sstevel@tonic-gate 
6627c478bd9Sstevel@tonic-gate     exit(status);
6637c478bd9Sstevel@tonic-gate }
6647c478bd9Sstevel@tonic-gate 
6657c478bd9Sstevel@tonic-gate /*
6667c478bd9Sstevel@tonic-gate  *	'Clean up' this string.
6677c478bd9Sstevel@tonic-gate  */
clean(s,sending)6687c478bd9Sstevel@tonic-gate char *clean(s, sending)
6697c478bd9Sstevel@tonic-gate register char *s;
6707c478bd9Sstevel@tonic-gate int sending;  /* set to 1 when sending (putting) this string. */
6717c478bd9Sstevel@tonic-gate {
6727c478bd9Sstevel@tonic-gate     char temp[STR_LEN], env_str[STR_LEN], cur_chr;
6737c478bd9Sstevel@tonic-gate     register char *s1, *phchar;
6747c478bd9Sstevel@tonic-gate     int add_return = sending;
6757c478bd9Sstevel@tonic-gate #define isoctal(chr)	(((chr) >= '0') && ((chr) <= '7'))
6767c478bd9Sstevel@tonic-gate #define isalnumx(chr)	((((chr) >= '0') && ((chr) <= '9')) \
6777c478bd9Sstevel@tonic-gate 			 || (((chr) >= 'a') && ((chr) <= 'z')) \
6787c478bd9Sstevel@tonic-gate 			 || (((chr) >= 'A') && ((chr) <= 'Z')) \
6797c478bd9Sstevel@tonic-gate 			 || (chr) == '_')
6807c478bd9Sstevel@tonic-gate 
6817c478bd9Sstevel@tonic-gate     s1 = temp;
6827c478bd9Sstevel@tonic-gate     while (*s) {
6837c478bd9Sstevel@tonic-gate 	cur_chr = *s++;
6847c478bd9Sstevel@tonic-gate 	if (cur_chr == '^') {
6857c478bd9Sstevel@tonic-gate 	    cur_chr = *s++;
6867c478bd9Sstevel@tonic-gate 	    if (cur_chr == '\0') {
6877c478bd9Sstevel@tonic-gate 		*s1++ = '^';
6887c478bd9Sstevel@tonic-gate 		break;
6897c478bd9Sstevel@tonic-gate 	    }
6907c478bd9Sstevel@tonic-gate 	    cur_chr &= 0x1F;
6917c478bd9Sstevel@tonic-gate 	    if (cur_chr != 0) {
6927c478bd9Sstevel@tonic-gate 		*s1++ = cur_chr;
6937c478bd9Sstevel@tonic-gate 	    }
6947c478bd9Sstevel@tonic-gate 	    continue;
6957c478bd9Sstevel@tonic-gate 	}
6967c478bd9Sstevel@tonic-gate 
6977c478bd9Sstevel@tonic-gate 	if (use_env && cur_chr == '$') {		/* ARI */
6987c478bd9Sstevel@tonic-gate 	    phchar = env_str;
6997c478bd9Sstevel@tonic-gate 	    while (isalnumx(*s))
7007c478bd9Sstevel@tonic-gate 		*phchar++ = *s++;
7017c478bd9Sstevel@tonic-gate 	    *phchar = '\0';
7027c478bd9Sstevel@tonic-gate 	    phchar = getenv(env_str);
7037c478bd9Sstevel@tonic-gate 	    if (phchar)
7047c478bd9Sstevel@tonic-gate 		while (*phchar)
7057c478bd9Sstevel@tonic-gate 		    *s1++ = *phchar++;
7067c478bd9Sstevel@tonic-gate 	    continue;
7077c478bd9Sstevel@tonic-gate 	}
7087c478bd9Sstevel@tonic-gate 
7097c478bd9Sstevel@tonic-gate 	if (cur_chr != '\\') {
7107c478bd9Sstevel@tonic-gate 	    *s1++ = cur_chr;
7117c478bd9Sstevel@tonic-gate 	    continue;
7127c478bd9Sstevel@tonic-gate 	}
7137c478bd9Sstevel@tonic-gate 
7147c478bd9Sstevel@tonic-gate 	cur_chr = *s++;
7157c478bd9Sstevel@tonic-gate 	if (cur_chr == '\0') {
7167c478bd9Sstevel@tonic-gate 	    if (sending) {
7177c478bd9Sstevel@tonic-gate 		*s1++ = '\\';
7187c478bd9Sstevel@tonic-gate 		*s1++ = '\\';
7197c478bd9Sstevel@tonic-gate 	    }
7207c478bd9Sstevel@tonic-gate 	    break;
7217c478bd9Sstevel@tonic-gate 	}
7227c478bd9Sstevel@tonic-gate 
7237c478bd9Sstevel@tonic-gate 	switch (cur_chr) {
7247c478bd9Sstevel@tonic-gate 	case 'b':
7257c478bd9Sstevel@tonic-gate 	    *s1++ = '\b';
7267c478bd9Sstevel@tonic-gate 	    break;
7277c478bd9Sstevel@tonic-gate 
7287c478bd9Sstevel@tonic-gate 	case 'c':
7297c478bd9Sstevel@tonic-gate 	    if (sending && *s == '\0')
7307c478bd9Sstevel@tonic-gate 		add_return = 0;
7317c478bd9Sstevel@tonic-gate 	    else
7327c478bd9Sstevel@tonic-gate 		*s1++ = cur_chr;
7337c478bd9Sstevel@tonic-gate 	    break;
7347c478bd9Sstevel@tonic-gate 
7357c478bd9Sstevel@tonic-gate 	case '\\':
7367c478bd9Sstevel@tonic-gate 	case 'K':
7377c478bd9Sstevel@tonic-gate 	case 'p':
7387c478bd9Sstevel@tonic-gate 	case 'd':
7397c478bd9Sstevel@tonic-gate 	    if (sending)
7407c478bd9Sstevel@tonic-gate 		*s1++ = '\\';
7417c478bd9Sstevel@tonic-gate 	    *s1++ = cur_chr;
7427c478bd9Sstevel@tonic-gate 	    break;
7437c478bd9Sstevel@tonic-gate 
7447c478bd9Sstevel@tonic-gate 	case 'T':
7457c478bd9Sstevel@tonic-gate 	    if (sending && phone_num) {
7467c478bd9Sstevel@tonic-gate 		for (phchar = phone_num; *phchar != '\0'; phchar++)
7477c478bd9Sstevel@tonic-gate 		    *s1++ = *phchar;
7487c478bd9Sstevel@tonic-gate 	    }
7497c478bd9Sstevel@tonic-gate 	    else {
7507c478bd9Sstevel@tonic-gate 		*s1++ = '\\';
7517c478bd9Sstevel@tonic-gate 		*s1++ = 'T';
7527c478bd9Sstevel@tonic-gate 	    }
7537c478bd9Sstevel@tonic-gate 	    break;
7547c478bd9Sstevel@tonic-gate 
7557c478bd9Sstevel@tonic-gate 	case 'U':
7567c478bd9Sstevel@tonic-gate 	    if (sending && phone_num2) {
7577c478bd9Sstevel@tonic-gate 		for (phchar = phone_num2; *phchar != '\0'; phchar++)
7587c478bd9Sstevel@tonic-gate 		    *s1++ = *phchar;
7597c478bd9Sstevel@tonic-gate 	    }
7607c478bd9Sstevel@tonic-gate 	    else {
7617c478bd9Sstevel@tonic-gate 		*s1++ = '\\';
7627c478bd9Sstevel@tonic-gate 		*s1++ = 'U';
7637c478bd9Sstevel@tonic-gate 	    }
7647c478bd9Sstevel@tonic-gate 	    break;
7657c478bd9Sstevel@tonic-gate 
7667c478bd9Sstevel@tonic-gate 	case 'q':
7677c478bd9Sstevel@tonic-gate 	    quiet = 1;
7687c478bd9Sstevel@tonic-gate 	    break;
7697c478bd9Sstevel@tonic-gate 
7707c478bd9Sstevel@tonic-gate 	case 'r':
7717c478bd9Sstevel@tonic-gate 	    *s1++ = '\r';
7727c478bd9Sstevel@tonic-gate 	    break;
7737c478bd9Sstevel@tonic-gate 
7747c478bd9Sstevel@tonic-gate 	case 'n':
7757c478bd9Sstevel@tonic-gate 	    *s1++ = '\n';
7767c478bd9Sstevel@tonic-gate 	    break;
7777c478bd9Sstevel@tonic-gate 
7787c478bd9Sstevel@tonic-gate 	case 's':
7797c478bd9Sstevel@tonic-gate 	    *s1++ = ' ';
7807c478bd9Sstevel@tonic-gate 	    break;
7817c478bd9Sstevel@tonic-gate 
7827c478bd9Sstevel@tonic-gate 	case 't':
7837c478bd9Sstevel@tonic-gate 	    *s1++ = '\t';
7847c478bd9Sstevel@tonic-gate 	    break;
7857c478bd9Sstevel@tonic-gate 
7867c478bd9Sstevel@tonic-gate 	case 'N':
7877c478bd9Sstevel@tonic-gate 	    if (sending) {
7887c478bd9Sstevel@tonic-gate 		*s1++ = '\\';
7897c478bd9Sstevel@tonic-gate 		*s1++ = '\0';
7907c478bd9Sstevel@tonic-gate 	    }
7917c478bd9Sstevel@tonic-gate 	    else
7927c478bd9Sstevel@tonic-gate 		*s1++ = 'N';
7937c478bd9Sstevel@tonic-gate 	    break;
7947c478bd9Sstevel@tonic-gate 
7957c478bd9Sstevel@tonic-gate 	case '$':			/* ARI */
7967c478bd9Sstevel@tonic-gate 	    if (use_env) {
7977c478bd9Sstevel@tonic-gate 		*s1++ = cur_chr;
7987c478bd9Sstevel@tonic-gate 		break;
7997c478bd9Sstevel@tonic-gate 	    }
8007c478bd9Sstevel@tonic-gate 	    /* FALL THROUGH */
8017c478bd9Sstevel@tonic-gate 
8027c478bd9Sstevel@tonic-gate 	default:
8037c478bd9Sstevel@tonic-gate 	    if (isoctal (cur_chr)) {
8047c478bd9Sstevel@tonic-gate 		cur_chr &= 0x07;
8057c478bd9Sstevel@tonic-gate 		if (isoctal (*s)) {
8067c478bd9Sstevel@tonic-gate 		    cur_chr <<= 3;
8077c478bd9Sstevel@tonic-gate 		    cur_chr |= *s++ - '0';
8087c478bd9Sstevel@tonic-gate 		    if (isoctal (*s)) {
8097c478bd9Sstevel@tonic-gate 			cur_chr <<= 3;
8107c478bd9Sstevel@tonic-gate 			cur_chr |= *s++ - '0';
8117c478bd9Sstevel@tonic-gate 		    }
8127c478bd9Sstevel@tonic-gate 		}
8137c478bd9Sstevel@tonic-gate 
8147c478bd9Sstevel@tonic-gate 		if (cur_chr != 0 || sending) {
8157c478bd9Sstevel@tonic-gate 		    if (sending && (cur_chr == '\\' || cur_chr == 0))
8167c478bd9Sstevel@tonic-gate 			*s1++ = '\\';
8177c478bd9Sstevel@tonic-gate 		    *s1++ = cur_chr;
8187c478bd9Sstevel@tonic-gate 		}
8197c478bd9Sstevel@tonic-gate 		break;
8207c478bd9Sstevel@tonic-gate 	    }
8217c478bd9Sstevel@tonic-gate 
8227c478bd9Sstevel@tonic-gate 	    if (sending)
8237c478bd9Sstevel@tonic-gate 		*s1++ = '\\';
8247c478bd9Sstevel@tonic-gate 	    *s1++ = cur_chr;
8257c478bd9Sstevel@tonic-gate 	    break;
8267c478bd9Sstevel@tonic-gate 	}
8277c478bd9Sstevel@tonic-gate     }
8287c478bd9Sstevel@tonic-gate 
8297c478bd9Sstevel@tonic-gate     if (add_return)
8307c478bd9Sstevel@tonic-gate 	*s1++ = '\r';
8317c478bd9Sstevel@tonic-gate 
8327c478bd9Sstevel@tonic-gate     *s1++ = '\0'; /* guarantee closure */
8337c478bd9Sstevel@tonic-gate     *s1++ = '\0'; /* terminate the string */
8347c478bd9Sstevel@tonic-gate     return dup_mem (temp, (size_t) (s1 - temp)); /* may have embedded nuls */
8357c478bd9Sstevel@tonic-gate }
8367c478bd9Sstevel@tonic-gate 
8377c478bd9Sstevel@tonic-gate /*
8387c478bd9Sstevel@tonic-gate  * A modified version of 'strtok'. This version skips \ sequences.
8397c478bd9Sstevel@tonic-gate  */
8407c478bd9Sstevel@tonic-gate 
expect_strtok(s,term)8417c478bd9Sstevel@tonic-gate char *expect_strtok (s, term)
8427c478bd9Sstevel@tonic-gate      char *s, *term;
8437c478bd9Sstevel@tonic-gate {
8447c478bd9Sstevel@tonic-gate     static  char *str   = "";
8457c478bd9Sstevel@tonic-gate     int	    escape_flag = 0;
8467c478bd9Sstevel@tonic-gate     char   *result;
8477c478bd9Sstevel@tonic-gate 
8487c478bd9Sstevel@tonic-gate /*
8497c478bd9Sstevel@tonic-gate  * If a string was specified then do initial processing.
8507c478bd9Sstevel@tonic-gate  */
8517c478bd9Sstevel@tonic-gate     if (s)
8527c478bd9Sstevel@tonic-gate 	str = s;
8537c478bd9Sstevel@tonic-gate 
8547c478bd9Sstevel@tonic-gate /*
8557c478bd9Sstevel@tonic-gate  * If this is the escape flag then reset it and ignore the character.
8567c478bd9Sstevel@tonic-gate  */
8577c478bd9Sstevel@tonic-gate     if (*str)
8587c478bd9Sstevel@tonic-gate 	result = str;
8597c478bd9Sstevel@tonic-gate     else
8607c478bd9Sstevel@tonic-gate 	result = (char *) 0;
8617c478bd9Sstevel@tonic-gate 
8627c478bd9Sstevel@tonic-gate     while (*str) {
8637c478bd9Sstevel@tonic-gate 	if (escape_flag) {
8647c478bd9Sstevel@tonic-gate 	    escape_flag = 0;
8657c478bd9Sstevel@tonic-gate 	    ++str;
8667c478bd9Sstevel@tonic-gate 	    continue;
8677c478bd9Sstevel@tonic-gate 	}
8687c478bd9Sstevel@tonic-gate 
8697c478bd9Sstevel@tonic-gate 	if (*str == '\\') {
8707c478bd9Sstevel@tonic-gate 	    ++str;
8717c478bd9Sstevel@tonic-gate 	    escape_flag = 1;
8727c478bd9Sstevel@tonic-gate 	    continue;
8737c478bd9Sstevel@tonic-gate 	}
8747c478bd9Sstevel@tonic-gate 
8757c478bd9Sstevel@tonic-gate /*
8767c478bd9Sstevel@tonic-gate  * If this is not in the termination string, continue.
8777c478bd9Sstevel@tonic-gate  */
8787c478bd9Sstevel@tonic-gate 	if (strchr (term, *str) == (char *) 0) {
8797c478bd9Sstevel@tonic-gate 	    ++str;
8807c478bd9Sstevel@tonic-gate 	    continue;
8817c478bd9Sstevel@tonic-gate 	}
8827c478bd9Sstevel@tonic-gate 
8837c478bd9Sstevel@tonic-gate /*
8847c478bd9Sstevel@tonic-gate  * This is the terminator. Mark the end of the string and stop.
8857c478bd9Sstevel@tonic-gate  */
8867c478bd9Sstevel@tonic-gate 	*str++ = '\0';
8877c478bd9Sstevel@tonic-gate 	break;
8887c478bd9Sstevel@tonic-gate     }
8897c478bd9Sstevel@tonic-gate     return (result);
8907c478bd9Sstevel@tonic-gate }
8917c478bd9Sstevel@tonic-gate 
8927c478bd9Sstevel@tonic-gate /*
8937c478bd9Sstevel@tonic-gate  * Process the expect string
8947c478bd9Sstevel@tonic-gate  */
8957c478bd9Sstevel@tonic-gate 
chat_expect(s)8967c478bd9Sstevel@tonic-gate void chat_expect (s)
8977c478bd9Sstevel@tonic-gate char *s;
8987c478bd9Sstevel@tonic-gate {
8997c478bd9Sstevel@tonic-gate     char *expect;
9007c478bd9Sstevel@tonic-gate     char *reply;
9017c478bd9Sstevel@tonic-gate 
9027c478bd9Sstevel@tonic-gate     if (strcmp(s, "HANGUP") == 0) {
9037c478bd9Sstevel@tonic-gate 	++hup_next;
9047c478bd9Sstevel@tonic-gate         return;
9057c478bd9Sstevel@tonic-gate     }
9067c478bd9Sstevel@tonic-gate 
9077c478bd9Sstevel@tonic-gate     if (strcmp(s, "ABORT") == 0) {
9087c478bd9Sstevel@tonic-gate 	++abort_next;
9097c478bd9Sstevel@tonic-gate 	return;
9107c478bd9Sstevel@tonic-gate     }
9117c478bd9Sstevel@tonic-gate 
9127c478bd9Sstevel@tonic-gate     if (strcmp(s, "CLR_ABORT") == 0) {
9137c478bd9Sstevel@tonic-gate 	++clear_abort_next;
9147c478bd9Sstevel@tonic-gate 	return;
9157c478bd9Sstevel@tonic-gate     }
9167c478bd9Sstevel@tonic-gate 
9177c478bd9Sstevel@tonic-gate     if (strcmp(s, "REPORT") == 0) {
9187c478bd9Sstevel@tonic-gate 	++report_next;
9197c478bd9Sstevel@tonic-gate 	return;
9207c478bd9Sstevel@tonic-gate     }
9217c478bd9Sstevel@tonic-gate 
9227c478bd9Sstevel@tonic-gate     if (strcmp(s, "CLR_REPORT") == 0) {
9237c478bd9Sstevel@tonic-gate 	++clear_report_next;
9247c478bd9Sstevel@tonic-gate 	return;
9257c478bd9Sstevel@tonic-gate     }
9267c478bd9Sstevel@tonic-gate 
9277c478bd9Sstevel@tonic-gate     if (strcmp(s, "TIMEOUT") == 0) {
9287c478bd9Sstevel@tonic-gate 	++timeout_next;
9297c478bd9Sstevel@tonic-gate 	return;
9307c478bd9Sstevel@tonic-gate     }
9317c478bd9Sstevel@tonic-gate 
9327c478bd9Sstevel@tonic-gate     if (strcmp(s, "ECHO") == 0) {
9337c478bd9Sstevel@tonic-gate 	++echo_next;
9347c478bd9Sstevel@tonic-gate 	return;
9357c478bd9Sstevel@tonic-gate     }
9367c478bd9Sstevel@tonic-gate 
9377c478bd9Sstevel@tonic-gate     if (strcmp(s, "SAY") == 0) {
9387c478bd9Sstevel@tonic-gate 	++say_next;
9397c478bd9Sstevel@tonic-gate 	return;
9407c478bd9Sstevel@tonic-gate     }
9417c478bd9Sstevel@tonic-gate 
9427c478bd9Sstevel@tonic-gate /*
9437c478bd9Sstevel@tonic-gate  * Fetch the expect and reply string.
9447c478bd9Sstevel@tonic-gate  */
9457c478bd9Sstevel@tonic-gate     for (;;) {
9467c478bd9Sstevel@tonic-gate 	expect = expect_strtok (s, "-");
9477c478bd9Sstevel@tonic-gate 	s      = (char *) 0;
9487c478bd9Sstevel@tonic-gate 
9497c478bd9Sstevel@tonic-gate 	if (expect == (char *) 0)
9507c478bd9Sstevel@tonic-gate 	    return;
9517c478bd9Sstevel@tonic-gate 
9527c478bd9Sstevel@tonic-gate 	reply = expect_strtok (s, "-");
9537c478bd9Sstevel@tonic-gate 
9547c478bd9Sstevel@tonic-gate /*
9557c478bd9Sstevel@tonic-gate  * Handle the expect string. If successful then exit.
9567c478bd9Sstevel@tonic-gate  */
9577c478bd9Sstevel@tonic-gate 	if (get_string (expect))
9587c478bd9Sstevel@tonic-gate 	    return;
9597c478bd9Sstevel@tonic-gate 
9607c478bd9Sstevel@tonic-gate /*
9617c478bd9Sstevel@tonic-gate  * If there is a sub-reply string then send it. Otherwise any condition
9627c478bd9Sstevel@tonic-gate  * is terminal.
9637c478bd9Sstevel@tonic-gate  */
9647c478bd9Sstevel@tonic-gate 	if (reply == (char *) 0 || exit_code != 3)
9657c478bd9Sstevel@tonic-gate 	    break;
9667c478bd9Sstevel@tonic-gate 
9677c478bd9Sstevel@tonic-gate 	chat_send (reply);
9687c478bd9Sstevel@tonic-gate     }
9697c478bd9Sstevel@tonic-gate 
9707c478bd9Sstevel@tonic-gate /*
9717c478bd9Sstevel@tonic-gate  * The expectation did not occur. This is terminal.
9727c478bd9Sstevel@tonic-gate  */
9737c478bd9Sstevel@tonic-gate     if (fail_reason)
9747c478bd9Sstevel@tonic-gate 	logf("Failed (%s)", fail_reason);
9757c478bd9Sstevel@tonic-gate     else
9767c478bd9Sstevel@tonic-gate 	logf("Failed");
9777c478bd9Sstevel@tonic-gate     terminate(exit_code);
9787c478bd9Sstevel@tonic-gate }
9797c478bd9Sstevel@tonic-gate 
9807c478bd9Sstevel@tonic-gate /*
9817c478bd9Sstevel@tonic-gate  * Translate the input character to the appropriate string for printing
9827c478bd9Sstevel@tonic-gate  * the data.
9837c478bd9Sstevel@tonic-gate  */
9847c478bd9Sstevel@tonic-gate 
character(c)9857c478bd9Sstevel@tonic-gate char *character(c)
9867c478bd9Sstevel@tonic-gate int c;
9877c478bd9Sstevel@tonic-gate {
9887c478bd9Sstevel@tonic-gate     static char string[10];
9897c478bd9Sstevel@tonic-gate     char *meta;
9907c478bd9Sstevel@tonic-gate 
9917c478bd9Sstevel@tonic-gate     meta = (c & 0x80) ? "M-" : "";
9927c478bd9Sstevel@tonic-gate     c &= 0x7F;
9937c478bd9Sstevel@tonic-gate 
9947c478bd9Sstevel@tonic-gate     if (c < 32)
9957c478bd9Sstevel@tonic-gate 	sprintf(string, "%s^%c", meta, (int)c + '@');
9967c478bd9Sstevel@tonic-gate     else if (c == 127)
9977c478bd9Sstevel@tonic-gate 	sprintf(string, "%s^?", meta);
9987c478bd9Sstevel@tonic-gate     else
9997c478bd9Sstevel@tonic-gate 	sprintf(string, "%s%c", meta, c);
10007c478bd9Sstevel@tonic-gate 
10017c478bd9Sstevel@tonic-gate     return (string);
10027c478bd9Sstevel@tonic-gate }
10037c478bd9Sstevel@tonic-gate 
10047c478bd9Sstevel@tonic-gate /*
10057c478bd9Sstevel@tonic-gate  *  process the reply string
10067c478bd9Sstevel@tonic-gate  */
chat_send(s)10077c478bd9Sstevel@tonic-gate void chat_send (s)
10087c478bd9Sstevel@tonic-gate register char *s;
10097c478bd9Sstevel@tonic-gate {
10107c478bd9Sstevel@tonic-gate     char file_data[STR_LEN];
10117c478bd9Sstevel@tonic-gate 
10127c478bd9Sstevel@tonic-gate     if (say_next) {
10137c478bd9Sstevel@tonic-gate 	say_next = 0;
10147c478bd9Sstevel@tonic-gate 	s = clean(s, 1);
10157c478bd9Sstevel@tonic-gate 	write(2, s, strlen(s));
10167c478bd9Sstevel@tonic-gate         free(s);
10177c478bd9Sstevel@tonic-gate 	return;
10187c478bd9Sstevel@tonic-gate     }
10197c478bd9Sstevel@tonic-gate 
10207c478bd9Sstevel@tonic-gate     if (hup_next) {
10217c478bd9Sstevel@tonic-gate         hup_next = 0;
10227c478bd9Sstevel@tonic-gate 	if (strcmp(s, "OFF") == 0)
10237c478bd9Sstevel@tonic-gate            signal(SIGHUP, SIG_IGN);
10247c478bd9Sstevel@tonic-gate         else
10257c478bd9Sstevel@tonic-gate            signal(SIGHUP, sighup);
10267c478bd9Sstevel@tonic-gate         return;
10277c478bd9Sstevel@tonic-gate     }
10287c478bd9Sstevel@tonic-gate 
10297c478bd9Sstevel@tonic-gate     if (echo_next) {
10307c478bd9Sstevel@tonic-gate 	echo_next = 0;
10317c478bd9Sstevel@tonic-gate 	echo = (strcmp(s, "ON") == 0);
10327c478bd9Sstevel@tonic-gate 	return;
10337c478bd9Sstevel@tonic-gate     }
10347c478bd9Sstevel@tonic-gate 
10357c478bd9Sstevel@tonic-gate     if (abort_next) {
10367c478bd9Sstevel@tonic-gate 	char *s1;
10377c478bd9Sstevel@tonic-gate 
10387c478bd9Sstevel@tonic-gate 	abort_next = 0;
10397c478bd9Sstevel@tonic-gate 
10407c478bd9Sstevel@tonic-gate 	if (n_aborts >= MAX_ABORTS)
10417c478bd9Sstevel@tonic-gate 	    fatal(2, "Too many ABORT strings");
10427c478bd9Sstevel@tonic-gate 
10437c478bd9Sstevel@tonic-gate 	s1 = clean(s, 0);
10447c478bd9Sstevel@tonic-gate 
10457c478bd9Sstevel@tonic-gate 	if (strlen(s1) > strlen(s)
10467c478bd9Sstevel@tonic-gate 	    || strlen(s1) + 1 > sizeof(fail_buffer))
10477c478bd9Sstevel@tonic-gate 	    fatal(1, "Illegal or too-long ABORT string ('%v')", s);
10487c478bd9Sstevel@tonic-gate 
10497c478bd9Sstevel@tonic-gate 	abort_string[n_aborts++] = s1;
10507c478bd9Sstevel@tonic-gate 
10517c478bd9Sstevel@tonic-gate 	if (verbose)
10527c478bd9Sstevel@tonic-gate 	    logf("abort on (%v)", s);
10537c478bd9Sstevel@tonic-gate 	return;
10547c478bd9Sstevel@tonic-gate     }
10557c478bd9Sstevel@tonic-gate 
10567c478bd9Sstevel@tonic-gate     if (clear_abort_next) {
10577c478bd9Sstevel@tonic-gate 	char *s1;
10587c478bd9Sstevel@tonic-gate 	int   i;
10597c478bd9Sstevel@tonic-gate         int   old_max;
10607c478bd9Sstevel@tonic-gate 	int   pack = 0;
10617c478bd9Sstevel@tonic-gate 
10627c478bd9Sstevel@tonic-gate 	clear_abort_next = 0;
10637c478bd9Sstevel@tonic-gate 
10647c478bd9Sstevel@tonic-gate 	s1 = clean(s, 0);
10657c478bd9Sstevel@tonic-gate 
10667c478bd9Sstevel@tonic-gate 	if (strlen(s1) > strlen(s)
10677c478bd9Sstevel@tonic-gate 	    || strlen(s1) + 1 > sizeof(fail_buffer))
10687c478bd9Sstevel@tonic-gate 	    fatal(1, "Illegal or too-long CLR_ABORT string ('%v')", s);
10697c478bd9Sstevel@tonic-gate 
10707c478bd9Sstevel@tonic-gate         old_max = n_aborts;
10717c478bd9Sstevel@tonic-gate 	for (i=0; i < n_aborts; i++) {
10727c478bd9Sstevel@tonic-gate 	    if ( strcmp(s1,abort_string[i]) == 0 ) {
10737c478bd9Sstevel@tonic-gate 		free(abort_string[i]);
10747c478bd9Sstevel@tonic-gate 		abort_string[i] = NULL;
10757c478bd9Sstevel@tonic-gate 		pack++;
10767c478bd9Sstevel@tonic-gate 		n_aborts--;
10777c478bd9Sstevel@tonic-gate 		if (verbose)
10787c478bd9Sstevel@tonic-gate 		    logf("clear abort on (%v)", s);
10797c478bd9Sstevel@tonic-gate 	    }
10807c478bd9Sstevel@tonic-gate 	}
10817c478bd9Sstevel@tonic-gate         free(s1);
10827c478bd9Sstevel@tonic-gate 	if (pack)
10837c478bd9Sstevel@tonic-gate 	    pack_array(abort_string,old_max);
10847c478bd9Sstevel@tonic-gate 	return;
10857c478bd9Sstevel@tonic-gate     }
10867c478bd9Sstevel@tonic-gate 
10877c478bd9Sstevel@tonic-gate     if (report_next) {
10887c478bd9Sstevel@tonic-gate 	char *s1;
10897c478bd9Sstevel@tonic-gate 
10907c478bd9Sstevel@tonic-gate 	report_next = 0;
10917c478bd9Sstevel@tonic-gate 	if (n_reports >= MAX_REPORTS)
10927c478bd9Sstevel@tonic-gate 	    fatal(2, "Too many REPORT strings");
10937c478bd9Sstevel@tonic-gate 
10947c478bd9Sstevel@tonic-gate 	s1 = clean(s, 0);
10957c478bd9Sstevel@tonic-gate 
10967c478bd9Sstevel@tonic-gate 	if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1)
10977c478bd9Sstevel@tonic-gate 	    fatal(1, "Illegal or too-long REPORT string ('%v')", s);
10987c478bd9Sstevel@tonic-gate 
10997c478bd9Sstevel@tonic-gate 	report_string[n_reports++] = s1;
11007c478bd9Sstevel@tonic-gate 
11017c478bd9Sstevel@tonic-gate 	if (verbose)
11027c478bd9Sstevel@tonic-gate 	    logf("report (%v)", s);
11037c478bd9Sstevel@tonic-gate 	return;
11047c478bd9Sstevel@tonic-gate     }
11057c478bd9Sstevel@tonic-gate 
11067c478bd9Sstevel@tonic-gate     if (clear_report_next) {
11077c478bd9Sstevel@tonic-gate 	char *s1;
11087c478bd9Sstevel@tonic-gate 	int   i;
11097c478bd9Sstevel@tonic-gate 	int   old_max;
11107c478bd9Sstevel@tonic-gate 	int   pack = 0;
11117c478bd9Sstevel@tonic-gate 
11127c478bd9Sstevel@tonic-gate 	clear_report_next = 0;
11137c478bd9Sstevel@tonic-gate 
11147c478bd9Sstevel@tonic-gate 	s1 = clean(s, 0);
11157c478bd9Sstevel@tonic-gate 
11167c478bd9Sstevel@tonic-gate 	if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1)
11177c478bd9Sstevel@tonic-gate 	    fatal(1, "Illegal or too-long REPORT string ('%v')", s);
11187c478bd9Sstevel@tonic-gate 
11197c478bd9Sstevel@tonic-gate 	old_max = n_reports;
11207c478bd9Sstevel@tonic-gate 	for (i=0; i < n_reports; i++) {
11217c478bd9Sstevel@tonic-gate 	    if ( strcmp(s1,report_string[i]) == 0 ) {
11227c478bd9Sstevel@tonic-gate 		free(report_string[i]);
11237c478bd9Sstevel@tonic-gate 		report_string[i] = NULL;
11247c478bd9Sstevel@tonic-gate 		pack++;
11257c478bd9Sstevel@tonic-gate 		n_reports--;
11267c478bd9Sstevel@tonic-gate 		if (verbose)
11277c478bd9Sstevel@tonic-gate 		    logf("clear report (%v)", s);
11287c478bd9Sstevel@tonic-gate 	    }
11297c478bd9Sstevel@tonic-gate 	}
11307c478bd9Sstevel@tonic-gate         free(s1);
11317c478bd9Sstevel@tonic-gate         if (pack)
11327c478bd9Sstevel@tonic-gate 	    pack_array(report_string,old_max);
11337c478bd9Sstevel@tonic-gate 
11347c478bd9Sstevel@tonic-gate 	return;
11357c478bd9Sstevel@tonic-gate     }
11367c478bd9Sstevel@tonic-gate 
11377c478bd9Sstevel@tonic-gate     if (timeout_next) {
11387c478bd9Sstevel@tonic-gate 	timeout_next = 0;
11397c478bd9Sstevel@tonic-gate 	timeout = atoi(s);
11407c478bd9Sstevel@tonic-gate 
11417c478bd9Sstevel@tonic-gate 	if (timeout <= 0)
11427c478bd9Sstevel@tonic-gate 	    timeout = DEFAULT_CHAT_TIMEOUT;
11437c478bd9Sstevel@tonic-gate 
11447c478bd9Sstevel@tonic-gate 	if (verbose)
11457c478bd9Sstevel@tonic-gate 	    logf("timeout set to %d seconds", timeout);
11467c478bd9Sstevel@tonic-gate 
11477c478bd9Sstevel@tonic-gate 	return;
11487c478bd9Sstevel@tonic-gate     }
11497c478bd9Sstevel@tonic-gate 
11507c478bd9Sstevel@tonic-gate     /*
11517c478bd9Sstevel@tonic-gate      * The syntax @filename means read the string to send from the
11527c478bd9Sstevel@tonic-gate      * file `filename'.
11537c478bd9Sstevel@tonic-gate      */
11547c478bd9Sstevel@tonic-gate     if (s[0] == '@') {
11557c478bd9Sstevel@tonic-gate 	/* skip the @ and any following white-space */
11567c478bd9Sstevel@tonic-gate 	char *fn = s;
11577c478bd9Sstevel@tonic-gate 	while (*++fn == ' ' || *fn == '\t')
11587c478bd9Sstevel@tonic-gate 	    ;
11597c478bd9Sstevel@tonic-gate 
11607c478bd9Sstevel@tonic-gate 	if (*fn != 0) {
11617c478bd9Sstevel@tonic-gate 	    FILE *f;
11627c478bd9Sstevel@tonic-gate 	    int n = 0;
11637c478bd9Sstevel@tonic-gate 
11647c478bd9Sstevel@tonic-gate 	    /* open the file and read until STR_LEN-1 bytes or end-of-file */
11657c478bd9Sstevel@tonic-gate 	    f = fopen(fn, "r");
11667c478bd9Sstevel@tonic-gate 	    if (f == NULL)
11677c478bd9Sstevel@tonic-gate 		fatal(1, "%s -- open failed: %m", fn);
11687c478bd9Sstevel@tonic-gate 	    while (n < STR_LEN - 1) {
11697c478bd9Sstevel@tonic-gate 		int nr = fread(&file_data[n], 1, STR_LEN - 1 - n, f);
11707c478bd9Sstevel@tonic-gate 		if (nr < 0)
11717c478bd9Sstevel@tonic-gate 		    fatal(1, "%s -- read error", fn);
11727c478bd9Sstevel@tonic-gate 		if (nr == 0)
11737c478bd9Sstevel@tonic-gate 		    break;
11747c478bd9Sstevel@tonic-gate 		n += nr;
11757c478bd9Sstevel@tonic-gate 	    }
11767c478bd9Sstevel@tonic-gate 	    fclose(f);
11777c478bd9Sstevel@tonic-gate 
11787c478bd9Sstevel@tonic-gate 	    /* use the string we got as the string to send,
11797c478bd9Sstevel@tonic-gate 	       but trim off the final newline if any. */
11807c478bd9Sstevel@tonic-gate 	    if (n > 0 && file_data[n-1] == '\n')
11817c478bd9Sstevel@tonic-gate 		--n;
11827c478bd9Sstevel@tonic-gate 	    file_data[n] = 0;
11837c478bd9Sstevel@tonic-gate 	    s = file_data;
11847c478bd9Sstevel@tonic-gate 	}
11857c478bd9Sstevel@tonic-gate     }
11867c478bd9Sstevel@tonic-gate 
11877c478bd9Sstevel@tonic-gate     if (strcmp(s, "EOT") == 0)
11887c478bd9Sstevel@tonic-gate 	s = "^D\\c";
11897c478bd9Sstevel@tonic-gate     else if (strcmp(s, "BREAK") == 0)
11907c478bd9Sstevel@tonic-gate 	s = "\\K\\c";
11917c478bd9Sstevel@tonic-gate 
11927c478bd9Sstevel@tonic-gate     if (!put_string(s))
11937c478bd9Sstevel@tonic-gate 	fatal(1, "Failed");
11947c478bd9Sstevel@tonic-gate }
11957c478bd9Sstevel@tonic-gate 
get_char()11967c478bd9Sstevel@tonic-gate int get_char()
11977c478bd9Sstevel@tonic-gate {
11987c478bd9Sstevel@tonic-gate     int status;
11997c478bd9Sstevel@tonic-gate     char c;
12007c478bd9Sstevel@tonic-gate 
12017c478bd9Sstevel@tonic-gate     status = read(0, &c, 1);
12027c478bd9Sstevel@tonic-gate 
12037c478bd9Sstevel@tonic-gate     switch (status) {
12047c478bd9Sstevel@tonic-gate     case 1:
12057c478bd9Sstevel@tonic-gate 	return ((int)c & 0x7F);
12067c478bd9Sstevel@tonic-gate 
12077c478bd9Sstevel@tonic-gate     default:
12087c478bd9Sstevel@tonic-gate 	logf("warning: read() on stdin returned %d", status);
1209*b2cf5195SToomas Soome 	/* FALLTHROUGH */
12107c478bd9Sstevel@tonic-gate 
12117c478bd9Sstevel@tonic-gate     case -1:
12127c478bd9Sstevel@tonic-gate 	if ((status = fcntl(0, F_GETFL, 0)) == -1)
12137c478bd9Sstevel@tonic-gate 	    fatal(2, "Can't get file mode flags on stdin: %m");
12147c478bd9Sstevel@tonic-gate 
12157c478bd9Sstevel@tonic-gate 	if (fcntl(0, F_SETFL, status & ~O_NONBLOCK) == -1)
12167c478bd9Sstevel@tonic-gate 	    fatal(2, "Can't set file mode flags on stdin: %m");
12177c478bd9Sstevel@tonic-gate 
12187c478bd9Sstevel@tonic-gate 	return (-1);
12197c478bd9Sstevel@tonic-gate     }
12207c478bd9Sstevel@tonic-gate }
12217c478bd9Sstevel@tonic-gate 
put_char(c)12227c478bd9Sstevel@tonic-gate int put_char(c)
12237c478bd9Sstevel@tonic-gate int c;
12247c478bd9Sstevel@tonic-gate {
12257c478bd9Sstevel@tonic-gate     int status;
12267c478bd9Sstevel@tonic-gate     char ch = c;
12277c478bd9Sstevel@tonic-gate 
12287c478bd9Sstevel@tonic-gate     usleep(10000);		/* inter-character typing delay (?) */
12297c478bd9Sstevel@tonic-gate 
12307c478bd9Sstevel@tonic-gate     status = write(1, &ch, 1);
12317c478bd9Sstevel@tonic-gate 
12327c478bd9Sstevel@tonic-gate     switch (status) {
12337c478bd9Sstevel@tonic-gate     case 1:
12347c478bd9Sstevel@tonic-gate 	return (0);
1235*b2cf5195SToomas Soome 
12367c478bd9Sstevel@tonic-gate     default:
12377c478bd9Sstevel@tonic-gate 	logf("warning: write() on stdout returned %d", status);
1238*b2cf5195SToomas Soome 	/* FALLTHROUGH */
1239*b2cf5195SToomas Soome 
12407c478bd9Sstevel@tonic-gate     case -1:
12417c478bd9Sstevel@tonic-gate 	if ((status = fcntl(0, F_GETFL, 0)) == -1)
12427c478bd9Sstevel@tonic-gate 	    fatal(2, "Can't get file mode flags on stdin, %m");
12437c478bd9Sstevel@tonic-gate 
12447c478bd9Sstevel@tonic-gate 	if (fcntl(0, F_SETFL, status & ~O_NONBLOCK) == -1)
12457c478bd9Sstevel@tonic-gate 	    fatal(2, "Can't set file mode flags on stdin: %m");
1246*b2cf5195SToomas Soome 
12477c478bd9Sstevel@tonic-gate 	return (-1);
12487c478bd9Sstevel@tonic-gate     }
12497c478bd9Sstevel@tonic-gate }
12507c478bd9Sstevel@tonic-gate 
write_char(c)12517c478bd9Sstevel@tonic-gate int write_char (c)
12527c478bd9Sstevel@tonic-gate int c;
12537c478bd9Sstevel@tonic-gate {
12547c478bd9Sstevel@tonic-gate     if (alarmed || put_char(c) < 0) {
12557c478bd9Sstevel@tonic-gate 	alarm(0);
12567c478bd9Sstevel@tonic-gate 	alarmed = 0;
12577c478bd9Sstevel@tonic-gate 
12587c478bd9Sstevel@tonic-gate 	if (verbose) {
12597c478bd9Sstevel@tonic-gate 	    if (errno == EINTR || errno == EWOULDBLOCK)
12607c478bd9Sstevel@tonic-gate 		logf(" -- write timed out");
12617c478bd9Sstevel@tonic-gate 	    else
1262