home *** CD-ROM | disk | FTP | other *** search
- /*--------------------------------------------------------------------------*/
- /* */
- /* */
- /* ------------ Bit-Bucket Software, Co. */
- /* \ 10001101 / Writers and Distributors of */
- /* \ 011110 / Freely Available<tm> Software. */
- /* \ 1011 / */
- /* ------ */
- /* */
- /* (C) Copyright 1987-91, Bit Bucket Software Co., a Delaware Corporation. */
- /* */
- /* */
- /* This module was written by Vince Perriello */
- /* */
- /* */
- /* BinkleyTerm Modem Handler Module */
- /* */
- /* */
- /* For complete details of the licensing restrictions, please refer */
- /* to the License agreement, which is published in its entirety in */
- /* the MAKEFILE and BT.C, and also contained in the file LICENSE.250. */
- /* */
- /* USE OF THIS FILE IS SUBJECT TO THE RESTRICTIONS CONTAINED IN THE */
- /* BINKLEYTERM LICENSING AGREEMENT. IF YOU DO NOT FIND THE TEXT OF */
- /* THIS AGREEMENT IN ANY OF THE AFOREMENTIONED FILES, OR IF YOU DO */
- /* NOT HAVE THESE FILES, YOU SHOULD IMMEDIATELY CONTACT BIT BUCKET */
- /* SOFTWARE CO. AT ONE OF THE ADDRESSES LISTED BELOW. IN NO EVENT */
- /* SHOULD YOU PROCEED TO USE THIS FILE WITHOUT HAVING ACCEPTED THE */
- /* TERMS OF THE BINKLEYTERM LICENSING AGREEMENT, OR SUCH OTHER */
- /* AGREEMENT AS YOU ARE ABLE TO REACH WITH BIT BUCKET SOFTWARE, CO. */
- /* */
- /* */
- /* You can contact Bit Bucket Software Co. at any one of the following */
- /* addresses: */
- /* */
- /* Bit Bucket Software Co. FidoNet 1:104/501, 1:343/491 */
- /* P.O. Box 460398 AlterNet 7:491/0 */
- /* Aurora, CO 80046 BBS-Net 86:2030/1 */
- /* Internet f491.n343.z1.fidonet.org */
- /* */
- /* Please feel free to contact us at any time to share your comments about */
- /* our software and/or licensing policies. */
- /* */
- /*--------------------------------------------------------------------------*/
-
- /* Include this file before any other includes or defines! */
-
- #include "includes.h"
-
- int dial_modem (char *);
- void phone_translate (char *, char *);
- char *get_response (long);
- int parse_response (char *);
- void empty_delay (void);
-
- #define FAILURE 0
- #define IGNORE 1
- #define CONNECTED 2
- #define RINGING 3
- #define INCOMING 4
-
- struct resp_str
- {
- char *resp;
- unsigned disp;
- };
-
- static struct resp_str mdm_resps[] = {
- {"RINGING", 1},
- {"RING RESPONSE", 1},
- {"RING", 3},
- {"CONNECT", 2},
- {"RRING", 1},
- {"BUSY", 0},
- {"VOICE", 0},
- {"ERROR", 0},
- {"OK", 0},
- {"NO CARRIER", 0},
- /* "NO DIAL TONE" or "NO DIALTONE" */ {"NO DIAL", 4},
- {"DIALING", 1},
- {"NO ANSWER", 0},
- {"DIAL TONE", 1},
- {NULL, 0}
- };
-
- static char *response_string = " ";
-
- void do_dial_strings ()
- {
- MDM_TRNS *m;
-
- predial = normprefix;
- postdial = normsuffix;
-
- m = mm_head;
- while (m != NULL)
- {
- if (m->mdm & newnodedes.ModemType)
- {
- predial = m->pre;
- postdial = m->suf;
- return;
- }
- m = m->next;
- }
- }
-
- void try_2_connect (char *phnum)
- {
- long t1;
- int j, k;
-
- for (j = 0; (j < poll_tries && !KEYPRESS ()); j++) /* do polltries or till keypress */
- {
- CLEAR_INBOUND ();
- k = dial_modem (phnum);
-
- if ((un_attended || doing_poll) && fullscreen)
- {
- ++hist.calls_made;
- (void) sprintf (junk, "%-4d", hist.calls_made);
- sb_move (history_hWnd, HIST_ATT_ROW, HIST_COL);
- sb_puts (history_Out, junk);
- }
-
- if ((k > 0) || KEYPRESS ())
- break;
- t1 = timerset (200);
- mdm_hangup ();
- while (!timeup (t1) && !KEYPRESS ())
- time_release (); /* pause for 2 seconds */
- }
- if (KEYPRESS ()) /* If user's been busy */
- {
- (void) FOSSIL_CHAR (); /* Eat the character */
- if (!CARRIER) /* Abort if no carrier */
- {
- status_line (MSG_TXT(M_CONNECT_ABORTED));
- mdm_hangup ();
- }
- }
-
- predial = normprefix;
- postdial = normsuffix;
- }
-
- int try_1_connect (char *phnum)
- {
- int k;
-
- if ((k = dial_modem (phnum)) <= 0)
- {
- if (k != -2) /* NO DIAL TONE needs express service */
- mdm_hangup ();
- }
-
- if ((un_attended || doing_poll) && fullscreen)
- {
- ++hist.calls_made;
- (void) sprintf (junk, "%-4d", hist.calls_made);
- sb_move (history_hWnd, HIST_ATT_ROW, HIST_COL);
- sb_puts (history_Out, junk);
- }
-
- predial = normprefix;
- postdial = normsuffix;
-
- return (k);
- }
-
- void phone_translate (char *number, char *translated)
- {
- PN_TRNS *p;
-
- (void) strcpy (translated, number);
- for (p = pn_head; p != NULL; p = p->next)
- {
- if (strncmp (p->num, number, (unsigned int) (p->len)) == 0)
- {
- (void) sprintf (translated, "%s%s%s", p->pre, &(number[p->len]), p->suf);
- break;
- }
- }
- }
-
- int dial_modem (char *number)
- {
- int resp;
- long t;
- char translated[50];
-
- janus_OK = 0;
- ARQ_lock = 0;
-
- phone_translate (number, translated);
- if (translated[0] == '\"') /* If it's a script */
- {
- resp = do_script (translated); /* then do it that way */
- if (fullscreen) /* & clean up the bottom line*/
- bottom_line ();
- return (resp);
- }
-
- status_line (MSG_TXT(M_DIALING_NUMBER), translated);
- if (un_attended && fullscreen)
- {
- do_ready (MSG_TXT(M_READY_DIALING));
- }
-
- /* First of all, if we have something, don't hang up on the guy! */
- if (!no_collide && CHAR_AVAIL ())
- return (-1);
-
- if (dial_setup != NULL)
- {
- mdm_cmd_string (dial_setup, 1);
- }
- else
- {
- LOWER_DTR (); /* drop DTR to reset modem */
- timer (20); /* leave it down 2 seconds */
- RAISE_DTR (); /* then raise DTR again */
- timer (5); /* and wait .5 sec for modem */
- }
-
- if (!no_collide && CHAR_AVAIL ()) /* If we have something
- * here, return */
- return (-1);
-
- mdm_cmd_string (predial, 0); /* transmit the dial prefix */
- mdm_cmd_string (translated, 0); /* then the phone number */
- mdm_cmd_string (postdial, 0); /* finally the dial suffix */
- if (no_collide)
- CLEAR_INBOUND (); /* Throw out all echo to
- * this point */
- mdm_cmd_char (CR); /* terminate the string */
-
- resp = modem_response (7500);
- if (resp) /* we got a good response, */
- {
- if (resp == RINGING) /* Incoming ring to be
- * processed higher up */
- return (-1);
-
- if (resp == INCOMING) /* No dial tone. That's */
- {
- return (-2); /* a potential remote. */
- }
-
- t = timerset (200); /* Wait up to 2 seconds */
- while (!timeup (t))
- { /* If carrier detect, AND */
- if ((CHAR_AVAIL ()) && CARRIER) /* some sign of life, */
- break; /* leave early... */
- }
- return ((int) CARRIER); /* Carrier should be on now */
- }
- return (0); /* no good */
- }
-
- char *get_response (long end_time)
- {
- char *p = response_string; /* points to character cell */
- char c; /* current modem character */
- int count = 0; /* count of characters */
-
- while ((count < 50) /* until we have 50 chars, */
- && (!timeup (end_time)) /* or out of time, */
- && (!KEYPRESS ())) /* or user gets impatient */
- {
- if (!CHAR_AVAIL ()) /* if nothing ready yet, */
- {
- time_release ();
- continue; /* just process timeouts */
- }
- c = (char) (MODEM_IN () & 0xff); /* get a character */
- if (c == '\r' || c == '\n') /* if a line ending */
- {
- if (count != 0) /* and we have something, */
- break; /* get out */
- else continue; /* otherwise just keep going */
- }
- *p++ = c; /* store the character */
- ++count; /* increment the counter */
- }
- *p = '\0'; /* terminate the new string */
-
- if (count != 0 && strnicmp (response_string, "AT", 2))
- {
- (void) fancy_str (response_string); /* make it pretty */
- status_line ("#%s", response_string); /* pop it out on the screen */
- }
-
- return (response_string); /* return the pointer */
- }
-
- int parse_response (char *response)
- {
- char *p; /* temp character pointer */
- register int i; /* array pointer */
-
- for (i = 0; mdm_resps[i].resp != NULL; i++) /* scan through array */
- {
- p = mdm_resps[i].resp; /* point at possible
- * response */
- if (strnicmp (response, p, strlen (p)) == 0) /* if a match, */
- return ((int) (mdm_resps[i].disp)); /* return disposition of it */
- }
- return (1); /* ignore all unknowns */
- }
-
-
- int modem_response (int ths)
- {
- unsigned int baudrate;
- long end_time; /* holds time at end of 2min */
- char *response; /* pointer to modem response */
- char *c; /* miscellaneous pointer */
- int result = IGNORE; /* result code */
- int i;
- int ring_count = 0; /* # of RINGING responses */
-
- /* If this modem doesn't differentiate between RING and RINGING */
- if (modemring)
- mdm_resps[2].disp = IGNORE;
-
- end_time = timerset ((unsigned int) ths); /* arm the timeout */
- while ((result == IGNORE) /* until success or failure, */
- && (!timeup (end_time)) /* or out of time, */
- && (!KEYPRESS ())) /* or user gets impatient */
- {
- /*
- * See if we've been through this code enough times to reach
- * the user-defined failure threshold. For this purpose,
- * we crudely assume that all IGNORE cases are rings.
- *
- * Henry Clark and Ron Bemis get credit for this one.
- */
- if (ring_count++ >= ring_tries)
- {
- response = "NO ANSWER";
- (void) fancy_str (response);
- status_line ("#%s", response);
- result = parse_response(response);
- break;
- }
- /*
- * We're still here. So get the next modem response
- * (or time out trying).
- */
- response = get_response (end_time); /* get a response */
- result = parse_response (response); /* parse, determine status */
- time_release ();
- }
-
- if (result == CONNECTED) /* Got to be a CONNECT msg */
- {
- if (strnicmp (response, "connect", 7) == 0)/* if this is a CONNECT, */
- {
- c = skip_blanks (&response[7]); /* get past the blanks */
- mdm_reliable[0] = '\0'; /* Start with nothing */
-
- if (*c == '\0') /* if nothing there, */
- {
- baudrate = (unsigned int) 300; /* say that it's 300 baud */
- }
- else
- {
- baudrate = (unsigned int) atoi (c); /* else do baudrate fallback */
-
- /* For 1200/75 split speed modems and "Connect 212" */
-
- if ((baudrate == 1275) || (baudrate == 7512)
- || (baudrate == 75) || (baudrate == 212) || (baudrate == 12))
- baudrate = 1200;
-
- /* For "Connect 103" */
- if (baudrate == 103)
- baudrate = 300;
- }
-
- ARQ_lock = 0;
-
- while (isdigit (*c)) /* Get past digits */
- ++c;
- c = skip_blanks (c); /* Get rid of blanks */
- if (*c != '\0') /* We have "reliable" info. */
- {
- (void) strcpy (mdm_reliable, c); /* Copy in the info */
- can_Janus (mdm_reliable); /* Set the flag for Janus */
- for (i = 0; i < ARQs; i++)
- {
- if ((strnicmp (mdm_reliable, ARQ[i], strlen(ARQ[i]))) == 0)
- {
- ARQ_lock = 1;
- break;
- }
- }
- }
-
- if (baudrate)
- (void) set_baud (baudrate, 1);
- }
-
- MNP_Filter ();
- }
-
- return (result); /* timeout or failure or OK */
- }
-
- void mdm_cmd_string (char *mdm_cmd, int dospace)
- {
- register char *c;
- register int escaped = 0;
-
- if (mdm_cmd == NULL) /* defense from shit */
- return;
-
- for (c = mdm_cmd; *c; c++)
- {
- if (escaped)
- {
- SENDBYTE (*c);
- escaped = 0;
- continue;
- }
-
- if (*c == '\\')
- {
- escaped = 1;
- continue;
- }
-
- if (!isspace (*c) || dospace) /* don't output spaces */
- mdm_cmd_char (*c); /* output the next character */
- }
- }
-
- void empty_delay ()
- {
- long t;
-
- t = timerset (500);
- while ((!OUT_EMPTY ()) && (!timeup (t)))
- time_release (); /* wait for output to finish */
-
- if (!OUT_EMPTY ())
- {
- MDM_DISABLE ();
- (void) Cominit (port_ptr, buftmo);
- program_baud ();
- RAISE_DTR ();
- CLEAR_OUTBOUND ();
- CLEAR_INBOUND ();
- if (un_attended && fullscreen)
- {
- sb_dirty ();
- sb_show ();
- }
- }
- }
-
- void mdm_cmd_char (int outchr)
- {
- switch (outchr)
- {
- case '-': /* if it's a dash (phone no) */
- return; /* ignore it */
-
- case '|': /* if the CR character, */
- outchr = CR; /* substitute a real CR here */
- break;
-
- case '.': /* Substitute ',' for '.' */
- outchr = ','; /* for compatibility */
- break;
-
- case '~': /* if the "delay" character, */
- empty_delay (); /* wait for buffer to clear, */
- timer (10); /* then wait 1 second */
- return; /* and return */
-
- case '^': /* Raise DTR */
- empty_delay (); /* wait for buffer to clear, */
- RAISE_DTR (); /* Turn on DTR */
- return; /* and return */
-
- case 'v': /* Lower DTR */
- empty_delay (); /* wait for buffer to clear, */
- LOWER_DTR (); /* Turn off DTR */
- return; /* and return */
-
- case '`': /* Short delay */
- timer (1); /* short pause, .1 second */
- return; /* and return */
-
- default:
- break;
- }
-
- SENDBYTE ((unsigned char) outchr); /* then write the character */
-
- if (outchr == CR) /* if it was a CR, */
- {
- empty_delay ();
- timer (1); /* allow .1 sec line quiet */
- }
- else if (slowmodem)
- {
- timer (1); /* wait .1 sec for output */
- }
- }
-
- void mdm_hangup ()
- {
-
- /*
- * First, if a dial command is in progress, try to get the modem to abort
- * it...
- */
-
- CLEAR_OUTBOUND ();
- CLEAR_INBOUND ();
-
- if (un_attended && fullscreen)
- {
- do_ready (MSG_TXT(M_READY_HANGUP));
- }
- else
- {
- status_line (MSG_TXT(M_MODEM_HANGUP)); /* Tell what we are doing */
- }
-
- mdm_init (modem_init); /* re-initialize the modem */
- timer (5); /* Wait another .5 sec */
-
- ARQ_lock = 0; /* Re-init lockbaud */
-
- set_xy ("");
- CLEAR_INBOUND (); /* then flush input and exit */
- }
-
- void mdm_init (char *str)
- {
- set_prior(4); /* Always High */
-
- CLEAR_OUTBOUND ();
- CLEAR_INBOUND ();
- if (init_setup != NULL)
- {
- (void) set_baud (max_baud.rate_value, 0);
- mdm_cmd_string (init_setup, 1);
- }
- else
- {
- mdm_cmd_char (CR); /* output a CR, then */
- LOWER_DTR (); /* Drop DTR to hangup */
- timer (10); /* Hold it down for 1 sec */
-
- RAISE_DTR (); /* Raise DTR, */
- timer (5); /* Then hold it up for .5
- * sec */
- (void) set_baud (max_baud.rate_value, 0);
-
- mdm_cmd_char (' '); /* output a space */
- mdm_cmd_char (CR); /* then another CR */
- }
- mdm_cmd_string (str, 0); /* then the modem init
- * string */
-
- set_prior(2); /* Regular */
-
- timer (5); /* Hold DTR for .5 sec more */
- CLEAR_INBOUND (); /* then flush input and exit */
- }
-
- void send_break (int t)
- {
- long t1;
-
- t1 = timerset ((unsigned int) t);
- do_break (1);
- while (!timeup (t1))
- time_release ();
- do_break (0);
- }
-
- void exit_DTR ()
- {
- if (!leave_dtr_high)
- LOWER_DTR ();
- }
-
- /*
- * We get here right after the CONNECT message. It could happen
- * so quickly that we don't even have DCD set. (On a 33MHz 386
- * and a T2500, that happens!)
- *
- * So: this routine waits up to 1 second for a carrier.
- *
- * It then eats anything that looks like an MNP string, with
- * a total time allowed of 10 seconds (for streaming garbage)
- * and maximum inter-character delay of 3 seconds.
- */
-
-
- void MNP_Filter ()
- {
- long t, t1;
- int c;
- int logged = 0;
-
- t = timerset (100); /* at most a one second delay */
-
- while (!CARRIER && !timeup (t))
- ;
-
- t1 = timerset (1000); /* 10 second drop dead timer */
- t = timerset (300); /* at most a three second delay */
-
- while (CARRIER && !timeup (t))
- {
- if (got_ESC ())
- { /* Manual abort? */
- LOWER_DTR (); /* Yes, drop carrier */
- return;
- }
-
- if (timeup (t1))
- break;
-
- if ((c = PEEKBYTE ()) != -1)
- {
- (void) TIMED_READ(0);
-
- /* If we get an MNP or v.42 character, eat it and wait for clear line */
- if ((c != 0) && ((strchr (BadChars, (c | 0x80)) != NULL) || (strchr (BadChars, (c & 0x7f)) != NULL)))
- {
- t = timerset (300);
- if ((logged++) == 0)
- status_line (MSG_TXT(M_FILTER));
- }
- }
- }
- }
-
-
-