| | 1 | #ifndef lint |
| | 2 | static char sccsid[] = "@(#)biz22.c 4.4 (Berkeley) %G%"; |
| | 3 | #endif |
| | 4 | |
| | 5 | #include "tip.h" |
| | 6 | |
| | 7 | #define DISCONNECT_CMD "\20\04" /* disconnection string */ |
| | 8 | |
| | 9 | static int sigALRM(); |
| | 10 | static int timeout = 0; |
| | 11 | static jmp_buf timeoutbuf; |
| | 12 | |
| | 13 | /* |
| | 14 | * Dial up on a BIZCOMP Model 1022 with either |
| | 15 | * tone dialing (mod = "V") |
| | 16 | * pulse dialing (mod = "W") |
| | 17 | */ |
| | 18 | static int |
| | 19 | biz_dialer(num, mod) |
| | 20 | char *num, *mod; |
| | 21 | { |
| | 22 | register int connected = 0; |
| | 23 | char cbuf[40]; |
| | 24 | |
| | 25 | if (boolean(value(VERBOSE))) |
| | 26 | printf("\nstarting call..."); |
| | 27 | /* |
| | 28 | * Disable auto-answer and configure for tone/pulse |
| | 29 | * dialing |
| | 30 | */ |
| | 31 | if (cmd("\02K\r")) { |
| | 32 | printf("can't initialize bizcomp..."); |
| | 33 | return (0); |
| | 34 | } |
| | 35 | strcpy(cbuf, "\02.\r"); |
| | 36 | cbuf[1] = *mod; |
| | 37 | if (cmd(cbuf)) { |
| | 38 | printf("can't set dialing mode..."); |
| | 39 | return (0); |
| | 40 | } |
| | 41 | strcpy(cbuf, "\02D"); |
| | 42 | strcat(cbuf, num); |
| | 43 | strcat(cbuf, "\r"); |
| | 44 | write(FD, cbuf, strlen(cbuf)); |
| | 45 | if (!detect("7\r")) { |
| | 46 | printf("can't get dial tone..."); |
| | 47 | return (0); |
| | 48 | } |
| | 49 | if (boolean(value(VERBOSE))) |
| | 50 | printf("ringing..."); |
| | 51 | /* |
| | 52 | * The reply from the BIZCOMP should be: |
| | 53 | * 2 \r or 7 \r failure |
| | 54 | * 1 \r success |
| | 55 | */ |
| | 56 | connected = detect("1\r"); |
| | 57 | #ifdef ACULOG |
| | 58 | if (timeout) { |
| | 59 | char line[80]; |
| | 60 | |
| | 61 | sprintf(line, "%d second dial timeout", |
| | 62 | number(value(DIALTIMEOUT))); |
| | 63 | logent(value(HOST), num, "biz1022", line); |
| | 64 | } |
| | 65 | #endif |
| | 66 | if (timeout) |
| | 67 | biz22_disconnect(); /* insurance */ |
| | 68 | return (connected); |
| | 69 | } |
| | 70 | |
| | 71 | biz22w_dialer(num, acu) |
| | 72 | char *num, *acu; |
| | 73 | { |
| | 74 | |
| | 75 | return (biz_dialer(num, "W")); |
| | 76 | } |
| | 77 | |
| | 78 | biz22f_dialer(num, acu) |
| | 79 | char *num, *acu; |
| | 80 | { |
| | 81 | |
| | 82 | return (biz_dialer(num, "V")); |
| | 83 | } |
| | 84 | |
| | 85 | biz22_disconnect() |
| | 86 | { |
| | 87 | int rw = 2; |
| | 88 | |
| | 89 | write(FD, DISCONNECT_CMD, 4); |
| | 90 | sleep(2); |
| | 91 | ioctl(FD, TIOCFLUSH, &rw); |
| | 92 | } |
| | 93 | |
| | 94 | biz22_abort() |
| | 95 | { |
| | 96 | |
| | 97 | write(FD, "\02", 1); |
| | 98 | } |
| | 99 | |
| | 100 | static int |
| | 101 | sigALRM() |
| | 102 | { |
| | 103 | |
| | 104 | timeout = 1; |
| | 105 | longjmp(timeoutbuf, 1); |
| | 106 | } |
| | 107 | |
| | 108 | static int |
| | 109 | cmd(s) |
| | 110 | register char *s; |
| | 111 | { |
| | 112 | char c; |
| | 113 | int (*f)(); |
| | 114 | |
| | 115 | write(FD, s, strlen(s)); |
| | 116 | f = signal(SIGALRM, sigALRM); |
| | 117 | if (setjmp(timeoutbuf)) { |
| | 118 | biz22_abort(); |
| | 119 | signal(SIGALRM, f); |
| | 120 | return (1); |
| | 121 | } |
| | 122 | alarm(number(value(DIALTIMEOUT))); |
| | 123 | read(FD, &c, 1); |
| | 124 | alarm(0); |
| | 125 | signal(SIGALRM, f); |
| | 126 | c &= 0177; |
| | 127 | return (c != '\r'); |
| | 128 | } |
| | 129 | |
| | 130 | static int |
| | 131 | detect(s) |
| | 132 | register char *s; |
| | 133 | { |
| | 134 | char c; |
| | 135 | int (*f)(); |
| | 136 | |
| | 137 | f = signal(SIGALRM, sigALRM); |
| | 138 | timeout = 0; |
| | 139 | while (*s) { |
| | 140 | if (setjmp(timeoutbuf)) { |
| | 141 | biz22_abort(); |
| | 142 | break; |
| | 143 | } |
| | 144 | alarm(number(value(DIALTIMEOUT))); |
| | 145 | read(FD, &c, 1); |
| | 146 | alarm(0); |
| | 147 | c &= 0177; |
| | 148 | if (c != *s++) |
| | 149 | return (0); |
| | 150 | } |
| | 151 | signal(SIGALRM, f); |
| | 152 | return (timeout == 0); |
| | 153 | } |
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