mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 17:18:32 +00:00
1167 lines
19 KiB
C
1167 lines
19 KiB
C
/*
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* Chat -- a program for automatic session establishment (i.e. dial
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* the phone and log in).
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*
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* This software is in the public domain.
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*
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* Please send all bug reports, requests for information, etc. to:
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*
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* Al Longyear (longyear@netcom.com)
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* (I was the last person to change this code.)
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*
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* The original author is:
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*
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* Karl Fox <karl@MorningStar.Com>
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* Morning Star Technologies, Inc.
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* 1760 Zollinger Road
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* Columbus, OH 43221
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* (614)451-1883
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*/
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static char rcsid[] = "$Id: chat.c,v 1.4 1994/05/30 00:30:37 paulus Exp $";
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#include <stdio.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <syslog.h>
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#ifndef TERMIO
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#undef TERMIOS
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#define TERMIOS
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#endif
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#ifdef sun
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# if defined(SUNOS) && SUNOS >= 41
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# ifndef HDB
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# define HDB
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# endif
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# endif
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#endif
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#ifdef TERMIO
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#include <termio.h>
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#endif
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#ifdef TERMIOS
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#include <termios.h>
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#endif
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#define STR_LEN 1024
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#ifndef SIGTYPE
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#define SIGTYPE void
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#endif
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#ifdef __STDC__
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#undef __P
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#define __P(x) x
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#else
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#define __P(x) ()
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#define const
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#endif
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/*************** Micro getopt() *********************************************/
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#define OPTION(c,v) (_O&2&&**v?*(*v)++:!c||_O&4?0:(!(_O&1)&& \
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(--c,++v),_O=4,c&&**v=='-'&&v[0][1]?*++*v=='-'\
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&&!v[0][1]?(--c,++v,0):(_O=2,*(*v)++):0))
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#define OPTARG(c,v) (_O&2?**v||(++v,--c)?(_O=1,--c,*v++): \
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(_O=4,(char*)0):(char*)0)
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#define OPTONLYARG(c,v) (_O&2&&**v?(_O=1,--c,*v++):(char*)0)
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#define ARG(c,v) (c?(--c,*v++):(char*)0)
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static int _O = 0; /* Internal state */
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/*************** Micro getopt() *********************************************/
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char *program_name;
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#ifndef LOCK_DIR
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# ifdef __NetBSD__
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# define PIDSTRING
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# define LOCK_DIR "/var/spool/lock"
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# else
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# ifdef HDB
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# define PIDSTRING
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# define LOCK_DIR "/usr/spool/locks"
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# else /* HDB */
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# define LOCK_DIR "/usr/spool/uucp"
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# endif /* HDB */
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# endif
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#endif /* LOCK_DIR */
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#define MAX_ABORTS 50
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#define DEFAULT_CHAT_TIMEOUT 45
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int verbose = 0;
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int quiet = 0;
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char *lock_file = (char *)0;
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char *chat_file = (char *)0;
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int timeout = DEFAULT_CHAT_TIMEOUT;
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int have_tty_parameters = 0;
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#ifdef TERMIO
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struct termio saved_tty_parameters;
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#endif
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#ifdef TERMIOS
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struct termios saved_tty_parameters;
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#endif
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char *abort_string[MAX_ABORTS], *fail_reason = (char *)0,
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fail_buffer[50];
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int n_aborts = 0, abort_next = 0, timeout_next = 0;
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void *dup_mem __P((void *b, size_t c));
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void *copy_of __P((char *s));
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void usage __P((void));
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void logf __P((const char *str));
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void logflush __P((void));
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void fatal __P((const char *msg));
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void sysfatal __P((const char *msg));
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SIGTYPE sigalrm __P((int signo));
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SIGTYPE sigint __P((int signo));
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SIGTYPE sigterm __P((int signo));
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SIGTYPE sighup __P((int signo));
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void unalarm __P((void));
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void init __P((void));
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void set_tty_parameters __P((void));
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void break_sequence __P((void));
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void terminate __P((int status));
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void do_file __P((char *chat_file));
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void lock __P((void));
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void delay __P((void));
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int get_string __P((register char *string));
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int put_string __P((register char *s));
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int write_char __P((int c));
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int put_char __P((char c));
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int get_char __P((void));
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void chat_send __P((register char *s));
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char *character __P((char c));
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void chat_expect __P((register char *s));
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char *clean __P((register char *s, int sending));
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void unlock __P((void));
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void lock __P((void));
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void break_sequence __P((void));
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void terminate __P((int status));
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void die __P((void));
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void *dup_mem(b, c)
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void *b;
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size_t c;
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{
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void *ans = malloc (c);
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if (!ans)
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fatal ("memory error!\n");
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memcpy (ans, b, c);
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return ans;
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}
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void *copy_of (s)
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char *s;
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{
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return dup_mem (s, strlen (s) + 1);
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}
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/*
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* chat [ -v ] [ -t timeout ] [ -l lock-file ] [ -f chat-file ] \
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* [...[[expect[-say[-expect...]] say expect[-say[-expect]] ...]]]
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*
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* Perform a UUCP-dialer-like chat script on stdin and stdout.
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*/
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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int option;
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char *arg;
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program_name = *argv;
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while (option = OPTION(argc, argv))
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switch (option)
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{
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case 'v':
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++verbose;
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break;
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case 'f':
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if (arg = OPTARG(argc, argv))
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chat_file = copy_of(arg);
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else
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usage();
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break;
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case 'l':
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if (arg = OPTARG(argc, argv))
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lock_file = copy_of(arg);
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else
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usage();
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break;
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case 't':
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if (arg = OPTARG(argc, argv))
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timeout = atoi(arg);
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else
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usage();
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break;
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default:
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usage();
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}
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#ifdef ultrix
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openlog("chat", LOG_PID);
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#else
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openlog("chat", LOG_PID | LOG_NDELAY, LOG_LOCAL2);
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if (verbose) {
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setlogmask(LOG_UPTO(LOG_INFO));
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} else {
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setlogmask(LOG_UPTO(LOG_WARNING));
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}
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#endif
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init();
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if (chat_file != NULL)
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{
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arg = ARG(argc, argv);
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if (arg != NULL)
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usage();
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else
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do_file (chat_file);
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}
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else
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{
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while (arg = ARG(argc, argv))
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{
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chat_expect(arg);
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if (arg = ARG(argc, argv))
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chat_send(arg);
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}
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}
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terminate(0);
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}
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/*
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* Process a chat script when read from a file.
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*/
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void do_file (chat_file)
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char *chat_file;
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{
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int linect, len, sendflg;
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char *sp, *arg, quote;
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char buf [STR_LEN];
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FILE *cfp;
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if ((cfp = fopen (chat_file, "r")) == NULL)
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{
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syslog (LOG_ERR, "%s -- open failed: %m", chat_file);
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terminate (1);
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}
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linect = 0;
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sendflg = 0;
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while (fgets(buf, STR_LEN, cfp) != NULL)
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{
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sp = strchr (buf, '\n');
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if (sp)
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*sp = '\0';
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linect++;
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sp = buf;
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while (*sp != '\0')
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{
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if (*sp == ' ' || *sp == '\t')
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{
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++sp;
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continue;
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}
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if (*sp == '"' || *sp == '\'')
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{
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quote = *sp++;
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arg = sp;
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while (*sp != quote)
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{
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if (*sp == '\0')
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{
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syslog (LOG_ERR, "unterminated quote (line %d)",
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linect);
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terminate (1);
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}
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if (*sp++ == '\\')
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if (*sp != '\0')
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++sp;
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}
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}
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else
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{
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arg = sp;
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while (*sp != '\0' && *sp != ' ' && *sp != '\t')
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++sp;
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}
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if (*sp != '\0')
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*sp++ = '\0';
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if (sendflg)
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{
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chat_send (arg);
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}
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else
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{
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chat_expect (arg);
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}
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sendflg = !sendflg;
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}
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}
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fclose (cfp);
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}
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/*
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* We got an error parsing the command line.
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*/
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void usage()
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{
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fprintf(stderr, "\
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Usage: %s [-v] [-l lock-file] [-t timeout] {-f chat-file || chat-script}\n",
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program_name);
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exit(1);
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}
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char line[256];
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char *p;
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void logf (str)
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const char *str;
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{
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p = line + strlen(line);
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strcat (p, str);
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if (str[strlen(str)-1] == '\n')
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{
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syslog (LOG_INFO, "%s", line);
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line[0] = 0;
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}
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}
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void logflush()
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{
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if (line[0] != 0)
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{
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syslog(LOG_INFO, "%s", line);
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line[0] = 0;
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}
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}
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/*
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* Unlock and terminate with an error.
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*/
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void die()
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{
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unlock();
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terminate(1);
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}
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/*
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* Print an error message and terminate.
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*/
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void fatal (msg)
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const char *msg;
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{
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syslog(LOG_ERR, "%s", msg);
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unlock();
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terminate(1);
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}
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/*
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* Print an error message along with the system error message and
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* terminate.
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*/
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void sysfatal (msg)
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const char *msg;
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{
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syslog(LOG_ERR, "%s: %m", msg);
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unlock();
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terminate(1);
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}
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int alarmed = 0;
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SIGTYPE sigalrm(signo)
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int signo;
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{
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int flags;
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alarm(1);
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alarmed = 1; /* Reset alarm to avoid race window */
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signal(SIGALRM, sigalrm); /* that can cause hanging in read() */
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logflush();
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if ((flags = fcntl(0, F_GETFL, 0)) == -1)
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sysfatal("Can't get file mode flags on stdin");
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else
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if (fcntl(0, F_SETFL, flags | FNDELAY) == -1)
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sysfatal("Can't set file mode flags on stdin");
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if (verbose)
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{
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syslog(LOG_INFO, "alarm");
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}
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}
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void unalarm()
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{
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int flags;
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if ((flags = fcntl(0, F_GETFL, 0)) == -1)
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sysfatal("Can't get file mode flags on stdin");
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else
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if (fcntl(0, F_SETFL, flags & ~FNDELAY) == -1)
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sysfatal("Can't set file mode flags on stdin");
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}
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SIGTYPE sigint(signo)
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int signo;
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{
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fatal("SIGINT");
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}
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SIGTYPE sigterm(signo)
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int signo;
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{
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fatal("SIGTERM");
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}
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SIGTYPE sighup(signo)
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int signo;
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{
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fatal("SIGHUP");
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}
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void init()
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{
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signal(SIGINT, sigint);
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signal(SIGTERM, sigterm);
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signal(SIGHUP, sighup);
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if (lock_file)
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lock();
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set_tty_parameters();
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signal(SIGALRM, sigalrm);
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alarm(0);
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alarmed = 0;
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}
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void set_tty_parameters()
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{
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#ifdef TERMIO
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struct termio t;
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if (ioctl(0, TCGETA, &t) < 0)
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sysfatal("Can't get terminal parameters");
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#endif
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#ifdef TERMIOS
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struct termios t;
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if (tcgetattr(0, &t) < 0)
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sysfatal("Can't get terminal parameters");
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#endif
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saved_tty_parameters = t;
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have_tty_parameters = 1;
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t.c_iflag |= IGNBRK | ISTRIP | IGNPAR;
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t.c_oflag = 0;
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t.c_lflag = 0;
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t.c_cc[VERASE] = t.c_cc[VKILL] = 0;
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t.c_cc[VMIN] = 1;
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t.c_cc[VTIME] = 0;
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#ifdef TERMIO
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if (ioctl(0, TCSETA, &t) < 0)
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sysfatal("Can't set terminal parameters");
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#endif
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#ifdef TERMIOS
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if (tcsetattr(0, TCSANOW, &t) < 0)
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sysfatal("Can't set terminal parameters");
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#endif
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}
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|
void break_sequence()
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{
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#ifdef TERMIOS
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tcsendbreak (0, 0);
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#endif
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}
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|
|
void terminate(status)
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|
int status;
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{
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if (have_tty_parameters &&
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#ifdef TERMIO
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ioctl(0, TCSETA, &saved_tty_parameters) < 0
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|
#endif
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|
#ifdef TERMIOS
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|
tcsetattr(0, TCSANOW, &saved_tty_parameters) < 0
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|
#endif
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) {
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|
syslog(LOG_ERR, "Can't restore terminal parameters: %m");
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unlock();
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|
exit(1);
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|
}
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exit(status);
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}
|
|
|
|
/*
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|
* Create a lock file for the named lock device
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|
*/
|
|
void lock()
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|
{
|
|
int fd, pid;
|
|
# ifdef PIDSTRING
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|
char hdb_lock_buffer[12];
|
|
# endif
|
|
|
|
lock_file = strcat(strcat(strcpy(malloc(strlen(LOCK_DIR)
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|
+ 1 + strlen(lock_file) + 1),
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|
LOCK_DIR), "/"), lock_file);
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|
|
|
if ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0)
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|
{
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|
char *s = lock_file;
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|
lock_file = (char *)0; /* Don't remove someone else's lock file! */
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|
syslog(LOG_ERR, "Can't get lock file '%s': %m", s);
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|
die();
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|
}
|
|
|
|
# ifdef PIDSTRING
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|
sprintf(hdb_lock_buffer, "%10d\n", getpid());
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|
write(fd, hdb_lock_buffer, 11);
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|
# else
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|
pid = getpid();
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|
write(fd, &pid, sizeof pid);
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|
# endif
|
|
|
|
close(fd);
|
|
}
|
|
|
|
/*
|
|
* Remove our lockfile
|
|
*/
|
|
void unlock()
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|
{
|
|
if (lock_file)
|
|
{
|
|
unlink(lock_file);
|
|
lock_file = (char *)0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 'Clean up' this string.
|
|
*/
|
|
char *clean(s, sending)
|
|
register char *s;
|
|
int sending;
|
|
{
|
|
char temp[STR_LEN], cur_chr;
|
|
register char *s1;
|
|
int add_return = sending;
|
|
#define isoctal(chr) (((chr) >= '0') && ((chr) <= '7'))
|
|
|
|
s1 = temp;
|
|
while (*s)
|
|
{
|
|
cur_chr = *s++;
|
|
if (cur_chr == '^')
|
|
{
|
|
cur_chr = *s++;
|
|
if (cur_chr == '\0')
|
|
{
|
|
*s1++ = '^';
|
|
break;
|
|
}
|
|
cur_chr &= 0x1F;
|
|
if (cur_chr != 0)
|
|
*s1++ = cur_chr;
|
|
continue;
|
|
}
|
|
|
|
if (cur_chr != '\\')
|
|
{
|
|
*s1++ = cur_chr;
|
|
continue;
|
|
}
|
|
|
|
cur_chr = *s++;
|
|
if (cur_chr == '\0')
|
|
{
|
|
if (sending)
|
|
{
|
|
*s1++ = '\\';
|
|
*s1++ = '\\';
|
|
}
|
|
break;
|
|
}
|
|
|
|
switch (cur_chr)
|
|
{
|
|
case 'b':
|
|
*s1++ = '\b';
|
|
break;
|
|
|
|
case 'c':
|
|
if (sending && *s == '\0')
|
|
add_return = 0;
|
|
else
|
|
*s1++ = cur_chr;
|
|
break;
|
|
|
|
case '\\':
|
|
case 'K':
|
|
case 'p':
|
|
case 'd':
|
|
if (sending)
|
|
*s1++ = '\\';
|
|
|
|
*s1++ = cur_chr;
|
|
break;
|
|
|
|
case 'q':
|
|
quiet = ! quiet;
|
|
break;
|
|
|
|
case 'r':
|
|
*s1++ = '\r';
|
|
break;
|
|
|
|
case 'n':
|
|
*s1++ = '\n';
|
|
break;
|
|
|
|
case 's':
|
|
*s1++ = ' ';
|
|
break;
|
|
|
|
case 't':
|
|
*s1++ = '\t';
|
|
break;
|
|
|
|
case 'N':
|
|
if (sending)
|
|
{
|
|
*s1++ = '\\';
|
|
*s1++ = '\0';
|
|
}
|
|
else
|
|
*s1++ = 'N';
|
|
break;
|
|
|
|
default:
|
|
if (isoctal (cur_chr))
|
|
{
|
|
cur_chr &= 0x07;
|
|
if (isoctal (*s))
|
|
{
|
|
cur_chr <<= 3;
|
|
cur_chr |= *s++ - '0';
|
|
if (isoctal (*s))
|
|
{
|
|
cur_chr <<= 3;
|
|
cur_chr |= *s++ - '0';
|
|
}
|
|
}
|
|
|
|
if (cur_chr != 0 || sending)
|
|
{
|
|
if (sending && (cur_chr == '\\' || cur_chr == 0))
|
|
*s1++ = '\\';
|
|
*s1++ = cur_chr;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (sending)
|
|
*s1++ = '\\';
|
|
*s1++ = cur_chr;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (add_return)
|
|
*s1++ = '\r';
|
|
|
|
*s1++ = '\0'; /* guarantee closure */
|
|
*s1++ = '\0'; /* terminate the string */
|
|
return dup_mem (temp, (size_t) (s1 - temp)); /* may have embedded nuls */
|
|
}
|
|
|
|
/*
|
|
* Process the expect string
|
|
*/
|
|
void chat_expect(s)
|
|
register char *s;
|
|
{
|
|
if (strcmp(s, "ABORT") == 0)
|
|
{
|
|
++abort_next;
|
|
return;
|
|
}
|
|
|
|
if (strcmp(s, "TIMEOUT") == 0)
|
|
{
|
|
++timeout_next;
|
|
return;
|
|
}
|
|
|
|
while (*s)
|
|
{
|
|
register char *hyphen;
|
|
|
|
for (hyphen = s; *hyphen; ++hyphen)
|
|
if (*hyphen == '-')
|
|
if (hyphen == s || hyphen[-1] != '\\')
|
|
break;
|
|
|
|
if (*hyphen == '-')
|
|
{
|
|
*hyphen = '\0';
|
|
|
|
if (get_string(s))
|
|
return;
|
|
else
|
|
{
|
|
s = hyphen + 1;
|
|
|
|
for (hyphen = s; *hyphen; ++hyphen)
|
|
if (*hyphen == '-')
|
|
if (hyphen == s || hyphen[-1] != '\\')
|
|
break;
|
|
|
|
if (*hyphen == '-')
|
|
{
|
|
*hyphen = '\0';
|
|
|
|
chat_send(s);
|
|
s = hyphen + 1;
|
|
}
|
|
else
|
|
{
|
|
chat_send(s);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if (get_string(s))
|
|
return;
|
|
else
|
|
{
|
|
if (fail_reason)
|
|
syslog(LOG_INFO, "Failed (%s)", fail_reason);
|
|
else
|
|
syslog(LOG_INFO, "Failed");
|
|
|
|
unlock();
|
|
terminate(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
char *character(c)
|
|
char c;
|
|
{
|
|
static char string[10];
|
|
char *meta;
|
|
|
|
meta = (c & 0x80) ? "M-" : "";
|
|
c &= 0x7F;
|
|
|
|
if (c < 32)
|
|
sprintf(string, "%s^%c", meta, (int)c + '@');
|
|
else
|
|
if (c == 127)
|
|
sprintf(string, "%s^?", meta);
|
|
else
|
|
sprintf(string, "%s%c", meta, c);
|
|
|
|
return (string);
|
|
}
|
|
|
|
/*
|
|
* process the reply string
|
|
*/
|
|
void chat_send (s)
|
|
register char *s;
|
|
{
|
|
if (abort_next)
|
|
{
|
|
char *s1;
|
|
|
|
abort_next = 0;
|
|
|
|
if (n_aborts >= MAX_ABORTS)
|
|
fatal("Too many ABORT strings");
|
|
|
|
s1 = clean(s, 0);
|
|
|
|
if (strlen(s1) > strlen(s) || strlen(s1) > sizeof fail_buffer - 1)
|
|
{
|
|
syslog(LOG_WARNING, "Illegal or too-long ABORT string ('%s')", s);
|
|
die();
|
|
}
|
|
|
|
abort_string[n_aborts++] = s1;
|
|
|
|
if (verbose)
|
|
{
|
|
logf("abort on (");
|
|
|
|
for (s1 = s; *s1; ++s1)
|
|
logf(character(*s1));
|
|
|
|
logf(")\n");
|
|
}
|
|
}
|
|
else
|
|
if (timeout_next)
|
|
{
|
|
timeout_next = 0;
|
|
timeout = atoi(s);
|
|
|
|
if (timeout <= 0)
|
|
timeout = DEFAULT_CHAT_TIMEOUT;
|
|
|
|
if (verbose)
|
|
{
|
|
syslog(LOG_INFO, "timeout set to %d seconds", timeout);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (strcmp(s, "EOT") == 0)
|
|
s = "^D\\c";
|
|
else
|
|
if (strcmp(s, "BREAK") == 0)
|
|
s = "\\K\\c";
|
|
if ( ! put_string(s))
|
|
{
|
|
syslog(LOG_INFO, "Failed");
|
|
unlock();
|
|
terminate(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
int get_char()
|
|
{
|
|
int status;
|
|
char c;
|
|
|
|
status = read(0, &c, 1);
|
|
|
|
switch (status)
|
|
{
|
|
case 1:
|
|
return ((int)c & 0x7F);
|
|
|
|
default:
|
|
syslog(LOG_WARNING, "warning: read() on stdin returned %d",
|
|
status);
|
|
|
|
case -1:
|
|
if ((status = fcntl(0, F_GETFL, 0)) == -1)
|
|
sysfatal("Can't get file mode flags on stdin");
|
|
else
|
|
if (fcntl(0, F_SETFL, status & ~FNDELAY) == -1)
|
|
sysfatal("Can't set file mode flags on stdin");
|
|
|
|
return (-1);
|
|
}
|
|
}
|
|
|
|
int put_char(c)
|
|
char c;
|
|
{
|
|
int status;
|
|
|
|
delay();
|
|
|
|
status = write(1, &c, 1);
|
|
|
|
switch (status)
|
|
{
|
|
case 1:
|
|
return (0);
|
|
|
|
default:
|
|
syslog(LOG_WARNING, "warning: write() on stdout returned %d",
|
|
status);
|
|
|
|
case -1:
|
|
if ((status = fcntl(0, F_GETFL, 0)) == -1)
|
|
sysfatal("Can't get file mode flags on stdin");
|
|
else
|
|
if (fcntl(0, F_SETFL, status & ~FNDELAY) == -1)
|
|
sysfatal("Can't set file mode flags on stdin");
|
|
|
|
return (-1);
|
|
}
|
|
}
|
|
|
|
int write_char (c)
|
|
int c;
|
|
{
|
|
if (alarmed || put_char(c) < 0)
|
|
{
|
|
extern int errno;
|
|
|
|
alarm(0); alarmed = 0;
|
|
|
|
if (verbose)
|
|
{
|
|
if (errno == EINTR || errno == EWOULDBLOCK)
|
|
syslog(LOG_INFO, " -- write timed out");
|
|
else
|
|
syslog(LOG_INFO, " -- write failed: %m");
|
|
}
|
|
return (0);
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
int put_string (s)
|
|
register char *s;
|
|
{
|
|
s = clean(s, 1);
|
|
|
|
if (verbose)
|
|
{
|
|
logf("send (");
|
|
|
|
if (quiet)
|
|
logf("??????");
|
|
else
|
|
{
|
|
register char *s1 = s;
|
|
|
|
for (s1 = s; *s1; ++s1)
|
|
logf(character(*s1));
|
|
}
|
|
|
|
logf(")\n");
|
|
}
|
|
|
|
alarm(timeout); alarmed = 0;
|
|
|
|
while (*s)
|
|
{
|
|
register char c = *s++;
|
|
|
|
if (c != '\\')
|
|
{
|
|
if (!write_char (c))
|
|
return 0;
|
|
continue;
|
|
}
|
|
|
|
c = *s++;
|
|
switch (c)
|
|
{
|
|
case 'd':
|
|
sleep(1);
|
|
break;
|
|
|
|
case 'K':
|
|
break_sequence();
|
|
break;
|
|
|
|
case 'p':
|
|
usleep(10000); /* 1/100th of a second. */
|
|
break;
|
|
|
|
default:
|
|
if (!write_char (c))
|
|
return 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
alarm(0);
|
|
alarmed = 0;
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* 'Wait for' this string to appear on this file descriptor.
|
|
*/
|
|
int get_string(string)
|
|
register char *string;
|
|
{
|
|
char temp[STR_LEN];
|
|
int c, printed = 0, len, minlen;
|
|
register char *s = temp, *end = s + STR_LEN;
|
|
|
|
fail_reason = (char *)0;
|
|
string = clean(string, 0);
|
|
len = strlen(string);
|
|
minlen = (len > sizeof(fail_buffer)? len: sizeof(fail_buffer)) - 1;
|
|
|
|
if (verbose)
|
|
{
|
|
register char *s1;
|
|
|
|
logf("expect (");
|
|
|
|
for (s1 = string; *s1; ++s1)
|
|
logf(character(*s1));
|
|
|
|
logf(")\n");
|
|
}
|
|
|
|
if (len > STR_LEN)
|
|
{
|
|
syslog(LOG_INFO, "expect string is too long");
|
|
return 0;
|
|
}
|
|
|
|
if (len == 0)
|
|
{
|
|
if (verbose)
|
|
{
|
|
syslog(LOG_INFO, "got it");
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
alarm(timeout); alarmed = 0;
|
|
|
|
while ( ! alarmed && (c = get_char()) >= 0)
|
|
{
|
|
int n, abort_len;
|
|
|
|
if (verbose)
|
|
{
|
|
if (c == '\n')
|
|
logf("\n");
|
|
else
|
|
logf(character(c));
|
|
}
|
|
|
|
*s++ = c;
|
|
|
|
if (s - temp >= len &&
|
|
c == string[len - 1] &&
|
|
strncmp(s - len, string, len) == 0)
|
|
{
|
|
if (verbose)
|
|
{
|
|
logf(" -- got it\n");
|
|
}
|
|
|
|
alarm(0); alarmed = 0;
|
|
return (1);
|
|
}
|
|
|
|
for (n = 0; n < n_aborts; ++n)
|
|
if (s - temp >= (abort_len = strlen(abort_string[n])) &&
|
|
strncmp(s - abort_len, abort_string[n], abort_len) == 0)
|
|
{
|
|
if (verbose)
|
|
{
|
|
logf(" -- failed\n");
|
|
}
|
|
|
|
alarm(0); alarmed = 0;
|
|
strcpy(fail_reason = fail_buffer, abort_string[n]);
|
|
return (0);
|
|
}
|
|
|
|
if (s >= end)
|
|
{
|
|
strncpy(temp, s - minlen, minlen);
|
|
s = temp + minlen;
|
|
}
|
|
|
|
if (alarmed && verbose)
|
|
syslog(LOG_WARNING, "warning: alarm synchronization problem");
|
|
}
|
|
|
|
alarm(0);
|
|
|
|
if (verbose && printed)
|
|
{
|
|
if (alarmed)
|
|
logf(" -- read timed out\n");
|
|
else
|
|
{
|
|
logflush();
|
|
syslog(LOG_INFO, " -- read failed: %m");
|
|
}
|
|
}
|
|
|
|
alarmed = 0;
|
|
return (0);
|
|
}
|
|
|
|
#ifdef ultrix
|
|
#undef NO_USLEEP
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
|
|
/*
|
|
usleep -- support routine for 4.2BSD system call emulations
|
|
last edit: 29-Oct-1984 D A Gwyn
|
|
*/
|
|
|
|
extern int select();
|
|
|
|
int
|
|
usleep( usec ) /* returns 0 if ok, else -1 */
|
|
long usec; /* delay in microseconds */
|
|
{
|
|
static struct /* `timeval' */
|
|
{
|
|
long tv_sec; /* seconds */
|
|
long tv_usec; /* microsecs */
|
|
} delay; /* _select() timeout */
|
|
|
|
delay.tv_sec = usec / 1000000L;
|
|
delay.tv_usec = usec % 1000000L;
|
|
|
|
return select( 0, (long *)0, (long *)0, (long *)0, &delay );
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Delay an amount appropriate for between typed characters.
|
|
*/
|
|
void delay()
|
|
{
|
|
# ifdef NO_USLEEP
|
|
register int i;
|
|
|
|
for (i = 0; i < 30000; ++i) /* ... did we just say appropriate? */
|
|
;
|
|
# else /* NO_USLEEP */
|
|
usleep(100);
|
|
# endif /* NO_USLEEP */
|
|
}
|