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Annotation of 43BSDReno/usr.bin/tip/aculib/df.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #ifndef lint
                     21: static char sccsid[] = "@(#)df.c       5.3 (Berkeley) 6/1/90";
                     22: #endif /* not lint */
                     23: 
                     24: /*
                     25:  * Dial the DF02-AC or DF03-AC
                     26:  */
                     27: 
                     28: #include "tip.h"
                     29: 
                     30: static jmp_buf Sjbuf;
                     31: static timeout();
                     32: 
                     33: df02_dialer(num, acu)
                     34:        char *num, *acu;
                     35: {
                     36: 
                     37:        return (df_dialer(num, acu, 0));
                     38: }
                     39: 
                     40: df03_dialer(num, acu)
                     41:        char *num, *acu;
                     42: {
                     43: 
                     44:        return (df_dialer(num, acu, 1));
                     45: }
                     46: 
                     47: df_dialer(num, acu, df03)
                     48:        char *num, *acu;
                     49:        int df03;
                     50: {
                     51:        register int f = FD;
                     52:        struct sgttyb buf;
                     53:        int speed = 0, rw = 2;
                     54:        char c = '\0';
                     55: 
                     56:        ioctl(f, TIOCHPCL, 0);          /* make sure it hangs up when done */
                     57:        if (setjmp(Sjbuf)) {
                     58:                printf("connection timed out\r\n");
                     59:                df_disconnect();
                     60:                return (0);
                     61:        }
                     62:        if (boolean(value(VERBOSE)))
                     63:                printf("\ndialing...");
                     64:        fflush(stdout);
                     65: #ifdef TIOCMSET
                     66:        if (df03) {
                     67:                int st = TIOCM_ST;      /* secondary Transmit flag */
                     68: 
                     69:                ioctl(f, TIOCGETP, &buf);
                     70:                if (buf.sg_ospeed != B1200) {   /* must dial at 1200 baud */
                     71:                        speed = buf.sg_ospeed;
                     72:                        buf.sg_ospeed = buf.sg_ispeed = B1200;
                     73:                        ioctl(f, TIOCSETP, &buf);
                     74:                        ioctl(f, TIOCMBIC, &st); /* clear ST for 300 baud */
                     75:                } else
                     76:                        ioctl(f, TIOCMBIS, &st); /* set ST for 1200 baud */
                     77:        }
                     78: #endif
                     79:        signal(SIGALRM, timeout);
                     80:        alarm(5 * strlen(num) + 10);
                     81:        ioctl(f, TIOCFLUSH, &rw);
                     82:        write(f, "\001", 1);
                     83:        sleep(1);
                     84:        write(f, "\002", 1);
                     85:        write(f, num, strlen(num));
                     86:        read(f, &c, 1);
                     87: #ifdef TIOCMSET
                     88:        if (df03 && speed) {
                     89:                buf.sg_ispeed = buf.sg_ospeed = speed;
                     90:                ioctl(f, TIOCSETP, &buf);
                     91:        }
                     92: #endif
                     93:        return (c == 'A');
                     94: }
                     95: 
                     96: df_disconnect()
                     97: {
                     98:        int rw = 2;
                     99: 
                    100:        write(FD, "\001", 1);
                    101:        sleep(1);
                    102:        ioctl(FD, TIOCFLUSH, &rw);
                    103: }
                    104: 
                    105: 
                    106: df_abort()
                    107: {
                    108: 
                    109:        df_disconnect();
                    110: }
                    111: 
                    112: 
                    113: static
                    114: timeout()
                    115: {
                    116: 
                    117:        longjmp(Sjbuf, 1);
                    118: }

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