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- /*
- * Copyright (c) 1983 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)biz22.c 5.2 (Berkeley) 9/13/88";
- #endif /* not lint */
-
- #include "tip.h"
-
- #define DISCONNECT_CMD "\20\04" /* disconnection string */
-
- static int sigALRM();
- static int timeout = 0;
- static jmp_buf timeoutbuf;
-
- /*
- * Dial up on a BIZCOMP Model 1022 with either
- * tone dialing (mod = "V")
- * pulse dialing (mod = "W")
- */
- static int
- biz_dialer(num, mod)
- char *num, *mod;
- {
- register int connected = 0;
- char cbuf[40];
-
- if (boolean(value(VERBOSE)))
- printf("\nstarting call...");
- /*
- * Disable auto-answer and configure for tone/pulse
- * dialing
- */
- if (cmd("\02K\r")) {
- printf("can't initialize bizcomp...");
- return (0);
- }
- strcpy(cbuf, "\02.\r");
- cbuf[1] = *mod;
- if (cmd(cbuf)) {
- printf("can't set dialing mode...");
- return (0);
- }
- strcpy(cbuf, "\02D");
- strcat(cbuf, num);
- strcat(cbuf, "\r");
- write(FD, cbuf, strlen(cbuf));
- if (!detect("7\r")) {
- printf("can't get dial tone...");
- return (0);
- }
- if (boolean(value(VERBOSE)))
- printf("ringing...");
- /*
- * The reply from the BIZCOMP should be:
- * 2 \r or 7 \r failure
- * 1 \r success
- */
- connected = detect("1\r");
- #ifdef ACULOG
- if (timeout) {
- char line[80];
-
- sprintf(line, "%d second dial timeout",
- number(value(DIALTIMEOUT)));
- logent(value(HOST), num, "biz1022", line);
- }
- #endif
- if (timeout)
- biz22_disconnect(); /* insurance */
- return (connected);
- }
-
- biz22w_dialer(num, acu)
- char *num, *acu;
- {
-
- return (biz_dialer(num, "W"));
- }
-
- biz22f_dialer(num, acu)
- char *num, *acu;
- {
-
- return (biz_dialer(num, "V"));
- }
-
- biz22_disconnect()
- {
- int rw = 2;
-
- write(FD, DISCONNECT_CMD, 4);
- sleep(2);
- ioctl(FD, TIOCFLUSH, &rw);
- }
-
- biz22_abort()
- {
-
- write(FD, "\02", 1);
- }
-
- static int
- sigALRM()
- {
-
- timeout = 1;
- longjmp(timeoutbuf, 1);
- }
-
- static int
- cmd(s)
- register char *s;
- {
- char c;
- sigfunc_t (*f)();
-
- write(FD, s, strlen(s));
- f = signal(SIGALRM, sigALRM);
- if (setjmp(timeoutbuf)) {
- biz22_abort();
- signal(SIGALRM, f);
- return (1);
- }
- alarm(number(value(DIALTIMEOUT)));
- read(FD, &c, 1);
- alarm(0);
- signal(SIGALRM, f);
- c &= 0177;
- return (c != '\r');
- }
-
- static int
- detect(s)
- register char *s;
- {
- char c;
- sigfunc_t (*f)();
-
- f = signal(SIGALRM, sigALRM);
- timeout = 0;
- while (*s) {
- if (setjmp(timeoutbuf)) {
- biz22_abort();
- break;
- }
- alarm(number(value(DIALTIMEOUT)));
- read(FD, &c, 1);
- alarm(0);
- c &= 0177;
- if (c != *s++)
- return (0);
- }
- signal(SIGALRM, f);
- return (timeout == 0);
- }
-