projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| d0aeaf5a DF |
1 | /* |
| 2 | * Copyright (c) 1983 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | */ | |
| 6 | ||
| 05862919 | 7 | #ifndef lint |
| d0aeaf5a DF |
8 | static char sccsid[] = "@(#)biz22.c 5.1 (Berkeley) %G%"; |
| 9 | #endif not lint | |
| 05862919 | 10 | |
| cabb8583 SL |
11 | #include "tip.h" |
| 12 | ||
| 05862919 | 13 | #define DISCONNECT_CMD "\20\04" /* disconnection string */ |
| cabb8583 | 14 | |
| 05862919 SL |
15 | static int sigALRM(); |
| 16 | static int timeout = 0; | |
| 17 | static jmp_buf timeoutbuf; | |
| cabb8583 SL |
18 | |
| 19 | /* | |
| 20 | * Dial up on a BIZCOMP Model 1022 with either | |
| 21 | * tone dialing (mod = "V") | |
| 22 | * pulse dialing (mod = "W") | |
| 23 | */ | |
| 24 | static int | |
| 25 | biz_dialer(num, mod) | |
| 26 | char *num, *mod; | |
| 27 | { | |
| 28 | register int connected = 0; | |
| 29 | char cbuf[40]; | |
| 30 | ||
| 31 | if (boolean(value(VERBOSE))) | |
| 32 | printf("\nstarting call..."); | |
| 33 | /* | |
| 34 | * Disable auto-answer and configure for tone/pulse | |
| 35 | * dialing | |
| 36 | */ | |
| 37 | if (cmd("\02K\r")) { | |
| 38 | printf("can't initialize bizcomp..."); | |
| 39 | return (0); | |
| 40 | } | |
| 41 | strcpy(cbuf, "\02.\r"); | |
| 42 | cbuf[1] = *mod; | |
| 43 | if (cmd(cbuf)) { | |
| 44 | printf("can't set dialing mode..."); | |
| 45 | return (0); | |
| 46 | } | |
| 47 | strcpy(cbuf, "\02D"); | |
| 48 | strcat(cbuf, num); | |
| 49 | strcat(cbuf, "\r"); | |
| 50 | write(FD, cbuf, strlen(cbuf)); | |
| 51 | if (!detect("7\r")) { | |
| 52 | printf("can't get dial tone..."); | |
| 53 | return (0); | |
| 54 | } | |
| 55 | if (boolean(value(VERBOSE))) | |
| 56 | printf("ringing..."); | |
| 57 | /* | |
| 58 | * The reply from the BIZCOMP should be: | |
| 59 | * 2 \r or 7 \r failure | |
| 60 | * 1 \r success | |
| 61 | */ | |
| 62 | connected = detect("1\r"); | |
| 63 | #ifdef ACULOG | |
| 64 | if (timeout) { | |
| 65 | char line[80]; | |
| 66 | ||
| 67 | sprintf(line, "%d second dial timeout", | |
| 68 | number(value(DIALTIMEOUT))); | |
| 69 | logent(value(HOST), num, "biz1022", line); | |
| 70 | } | |
| 71 | #endif | |
| 72 | if (timeout) | |
| 73 | biz22_disconnect(); /* insurance */ | |
| 74 | return (connected); | |
| 75 | } | |
| 76 | ||
| 77 | biz22w_dialer(num, acu) | |
| 78 | char *num, *acu; | |
| 79 | { | |
| 05862919 | 80 | |
| cabb8583 SL |
81 | return (biz_dialer(num, "W")); |
| 82 | } | |
| 83 | ||
| 84 | biz22f_dialer(num, acu) | |
| 85 | char *num, *acu; | |
| 86 | { | |
| 05862919 | 87 | |
| cabb8583 SL |
88 | return (biz_dialer(num, "V")); |
| 89 | } | |
| 90 | ||
| 91 | biz22_disconnect() | |
| 92 | { | |
| 05862919 SL |
93 | int rw = 2; |
| 94 | ||
| 95 | write(FD, DISCONNECT_CMD, 4); | |
| cabb8583 | 96 | sleep(2); |
| 05862919 | 97 | ioctl(FD, TIOCFLUSH, &rw); |
| cabb8583 SL |
98 | } |
| 99 | ||
| 100 | biz22_abort() | |
| 101 | { | |
| 05862919 | 102 | |
| cabb8583 | 103 | write(FD, "\02", 1); |
| cabb8583 SL |
104 | } |
| 105 | ||
| 106 | static int | |
| 107 | sigALRM() | |
| 108 | { | |
| 05862919 | 109 | |
| cabb8583 | 110 | timeout = 1; |
| 05862919 | 111 | longjmp(timeoutbuf, 1); |
| cabb8583 SL |
112 | } |
| 113 | ||
| 114 | static int | |
| 115 | cmd(s) | |
| 116 | register char *s; | |
| 117 | { | |
| 118 | char c; | |
| 05862919 | 119 | int (*f)(); |
| cabb8583 SL |
120 | |
| 121 | write(FD, s, strlen(s)); | |
| 05862919 SL |
122 | f = signal(SIGALRM, sigALRM); |
| 123 | if (setjmp(timeoutbuf)) { | |
| 124 | biz22_abort(); | |
| 125 | signal(SIGALRM, f); | |
| 126 | return (1); | |
| 127 | } | |
| cabb8583 SL |
128 | alarm(number(value(DIALTIMEOUT))); |
| 129 | read(FD, &c, 1); | |
| 130 | alarm(0); | |
| 05862919 | 131 | signal(SIGALRM, f); |
| cabb8583 SL |
132 | c &= 0177; |
| 133 | return (c != '\r'); | |
| 134 | } | |
| 135 | ||
| 136 | static int | |
| 137 | detect(s) | |
| 138 | register char *s; | |
| 139 | { | |
| 140 | char c; | |
| 05862919 | 141 | int (*f)(); |
| cabb8583 | 142 | |
| 05862919 | 143 | f = signal(SIGALRM, sigALRM); |
| cabb8583 SL |
144 | timeout = 0; |
| 145 | while (*s) { | |
| 05862919 SL |
146 | if (setjmp(timeoutbuf)) { |
| 147 | biz22_abort(); | |
| 148 | break; | |
| 149 | } | |
| cabb8583 SL |
150 | alarm(number(value(DIALTIMEOUT))); |
| 151 | read(FD, &c, 1); | |
| 152 | alarm(0); | |
| cabb8583 SL |
153 | c &= 0177; |
| 154 | if (c != *s++) | |
| 155 | return (0); | |
| 156 | } | |
| 05862919 SL |
157 | signal(SIGALRM, f); |
| 158 | return (timeout == 0); | |
| cabb8583 | 159 | } |