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