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Annotation of 43BSDReno/usr.bin/tip/aculib/biz22.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[] = "@(#)biz22.c    5.4 (Berkeley) 6/1/90";
        !            22: #endif /* not lint */
        !            23: 
        !            24: #include "tip.h"
        !            25: 
        !            26: #define DISCONNECT_CMD "\20\04"        /* disconnection string */
        !            27: 
        !            28: static void sigALRM();
        !            29: static int timeout = 0;
        !            30: static jmp_buf timeoutbuf;
        !            31: 
        !            32: /*
        !            33:  * Dial up on a BIZCOMP Model 1022 with either
        !            34:  *     tone dialing (mod = "V")
        !            35:  *     pulse dialing (mod = "W")
        !            36:  */
        !            37: static int
        !            38: biz_dialer(num, mod)
        !            39:        char *num, *mod;
        !            40: {
        !            41:        register int connected = 0;
        !            42:        char cbuf[40];
        !            43: 
        !            44:        if (boolean(value(VERBOSE)))
        !            45:                printf("\nstarting call...");
        !            46:        /*
        !            47:         * Disable auto-answer and configure for tone/pulse
        !            48:         *  dialing
        !            49:         */
        !            50:        if (cmd("\02K\r")) {
        !            51:                printf("can't initialize bizcomp...");
        !            52:                return (0);
        !            53:        }
        !            54:        strcpy(cbuf, "\02.\r");
        !            55:        cbuf[1] = *mod;
        !            56:        if (cmd(cbuf)) {
        !            57:                printf("can't set dialing mode...");
        !            58:                return (0);
        !            59:        }
        !            60:        strcpy(cbuf, "\02D");
        !            61:        strcat(cbuf, num);
        !            62:        strcat(cbuf, "\r");
        !            63:        write(FD, cbuf, strlen(cbuf));
        !            64:        if (!detect("7\r")) {
        !            65:                printf("can't get dial tone...");
        !            66:                return (0);
        !            67:        }
        !            68:        if (boolean(value(VERBOSE)))
        !            69:                printf("ringing...");
        !            70:        /*
        !            71:         * The reply from the BIZCOMP should be:
        !            72:         *      2 \r or 7 \r    failure
        !            73:         *      1 \r            success
        !            74:         */
        !            75:        connected = detect("1\r");
        !            76: #ifdef ACULOG
        !            77:        if (timeout) {
        !            78:                char line[80];
        !            79: 
        !            80:                sprintf(line, "%d second dial timeout",
        !            81:                        number(value(DIALTIMEOUT)));
        !            82:                logent(value(HOST), num, "biz1022", line);
        !            83:        }
        !            84: #endif
        !            85:        if (timeout)
        !            86:                biz22_disconnect();     /* insurance */
        !            87:        return (connected);
        !            88: }
        !            89: 
        !            90: biz22w_dialer(num, acu)
        !            91:        char *num, *acu;
        !            92: {
        !            93: 
        !            94:        return (biz_dialer(num, "W"));
        !            95: }
        !            96: 
        !            97: biz22f_dialer(num, acu)
        !            98:        char *num, *acu;
        !            99: {
        !           100: 
        !           101:        return (biz_dialer(num, "V"));
        !           102: }
        !           103: 
        !           104: biz22_disconnect()
        !           105: {
        !           106:        int rw = 2;
        !           107: 
        !           108:        write(FD, DISCONNECT_CMD, 4);
        !           109:        sleep(2);
        !           110:        ioctl(FD, TIOCFLUSH, &rw);
        !           111: }
        !           112: 
        !           113: biz22_abort()
        !           114: {
        !           115: 
        !           116:        write(FD, "\02", 1);
        !           117: }
        !           118: 
        !           119: static void
        !           120: sigALRM()
        !           121: {
        !           122: 
        !           123:        timeout = 1;
        !           124:        longjmp(timeoutbuf, 1);
        !           125: }
        !           126: 
        !           127: static int
        !           128: cmd(s)
        !           129:        register char *s;
        !           130: {
        !           131:        sig_t f;
        !           132:        char c;
        !           133: 
        !           134:        write(FD, s, strlen(s));
        !           135:        f = signal(SIGALRM, sigALRM);
        !           136:        if (setjmp(timeoutbuf)) {
        !           137:                biz22_abort();
        !           138:                signal(SIGALRM, f);
        !           139:                return (1);
        !           140:        }
        !           141:        alarm(number(value(DIALTIMEOUT)));
        !           142:        read(FD, &c, 1);
        !           143:        alarm(0);
        !           144:        signal(SIGALRM, f);
        !           145:        c &= 0177;
        !           146:        return (c != '\r');
        !           147: }
        !           148: 
        !           149: static int
        !           150: detect(s)
        !           151:        register char *s;
        !           152: {
        !           153:        sig_t f;
        !           154:        char c;
        !           155: 
        !           156:        f = signal(SIGALRM, sigALRM);
        !           157:        timeout = 0;
        !           158:        while (*s) {
        !           159:                if (setjmp(timeoutbuf)) {
        !           160:                        biz22_abort();
        !           161:                        break;
        !           162:                }
        !           163:                alarm(number(value(DIALTIMEOUT)));
        !           164:                read(FD, &c, 1);
        !           165:                alarm(0);
        !           166:                c &= 0177;
        !           167:                if (c != *s++)
        !           168:                        return (0);
        !           169:        }
        !           170:        signal(SIGALRM, f);
        !           171:        return (timeout == 0);
        !           172: }

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