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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: (1) source distributions retain this entire copyright
- * notice and comment, and (2) distributions including binaries display
- * the following acknowledgement: ``This product includes software
- * developed by the University of California, Berkeley and its contributors''
- * in the documentation or other materials provided with the distribution
- * and in all advertising materials mentioning features or use of this
- * software. Neither the name of the University nor the names of its
- * contributors may 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 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)df.c 5.3 (Berkeley) 6/1/90";
- #endif /* not lint */
-
- /*
- * Dial the DF02-AC or DF03-AC
- */
-
- #include "tip.h"
-
- static jmp_buf Sjbuf;
- static timeout();
-
- df02_dialer(num, acu)
- char *num, *acu;
- {
-
- return (df_dialer(num, acu, 0));
- }
-
- df03_dialer(num, acu)
- char *num, *acu;
- {
-
- return (df_dialer(num, acu, 1));
- }
-
- df_dialer(num, acu, df03)
- char *num, *acu;
- int df03;
- {
- register int f = FD;
- struct sgttyb buf;
- int speed = 0, rw = 2;
- char c = '\0';
-
- ioctl(f, TIOCHPCL, 0); /* make sure it hangs up when done */
- if (setjmp(Sjbuf)) {
- printf("connection timed out\r\n");
- df_disconnect();
- return (0);
- }
- if (boolean(value(VERBOSE)))
- printf("\ndialing...");
- fflush(stdout);
- #ifdef TIOCMSET
- if (df03) {
- int st = TIOCM_ST; /* secondary Transmit flag */
-
- ioctl(f, TIOCGETP, &buf);
- if (buf.sg_ospeed != B1200) { /* must dial at 1200 baud */
- speed = buf.sg_ospeed;
- buf.sg_ospeed = buf.sg_ispeed = B1200;
- ioctl(f, TIOCSETP, &buf);
- ioctl(f, TIOCMBIC, &st); /* clear ST for 300 baud */
- } else
- ioctl(f, TIOCMBIS, &st); /* set ST for 1200 baud */
- }
- #endif
- signal(SIGALRM, timeout);
- alarm(5 * strlen(num) + 10);
- ioctl(f, TIOCFLUSH, &rw);
- write(f, "\001", 1);
- sleep(1);
- write(f, "\002", 1);
- write(f, num, strlen(num));
- read(f, &c, 1);
- #ifdef TIOCMSET
- if (df03 && speed) {
- buf.sg_ispeed = buf.sg_ospeed = speed;
- ioctl(f, TIOCSETP, &buf);
- }
- #endif
- return (c == 'A');
- }
-
- df_disconnect()
- {
- int rw = 2;
-
- write(FD, "\001", 1);
- sleep(1);
- ioctl(FD, TIOCFLUSH, &rw);
- }
-
-
- df_abort()
- {
-
- df_disconnect();
- }
-
-
- static
- timeout()
- {
-
- longjmp(Sjbuf, 1);
- }
-