Commit | Line | Data |
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f49909f5 | 1 | /*- |
17e8cbca KB |
2 | * Copyright (c) 1985, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
f49909f5 KB |
4 | * |
5 | * %sccs.include.proprietary.c% | |
6 | */ | |
7 | ||
0819c7c7 | 8 | #ifndef lint |
17e8cbca | 9 | static char sccsid[] = "@(#)vmacs.c 8.1 (Berkeley) %G%"; |
f49909f5 | 10 | #endif /* not lint */ |
0819c7c7 | 11 | |
ddf4e66c | 12 | #include "condevs.h" |
4c51dea0 | 13 | |
0819c7c7 | 14 | /* |
0819c7c7 RC |
15 | * |
16 | * A typical 300 baud L-devices entry is | |
17 | * ACU /dev/tty10 /dev/tty11,48,1200 300 vmacs | |
18 | * where tty10 is the communication line (D_Line), | |
19 | * tty11 is the dialer line (D_calldev), | |
20 | * the '4' is the dialer address + modem type (viz. dialer 0, Bell 103), | |
21 | * and the '8' is the communication port | |
22 | * (Note: Based on RVMACS version for 820 dialer. This version | |
23 | * developed by Doug Kingston @ BRL, 13 December 83.) | |
24 | */ | |
25 | ||
26 | #define SOH 01 /* Abort */ | |
27 | #define STX 02 /* Access Adaptor */ | |
28 | #define ETX 03 /* Transfer to Dialer */ | |
29 | #define SI 017 /* Buffer Empty (end of phone number) */ | |
30 | ||
31 | vmacsopn(ph, flds, dev) | |
32 | char *ph, *flds[]; | |
33 | struct Devices *dev; | |
34 | { | |
35 | register int va, i, child; | |
36 | register char *p; | |
37 | char c, acu[20], com[20]; | |
38 | char modem, dialer; | |
39 | int dialspeed; | |
40 | char c_STX = STX; | |
41 | char c_ETX = ETX; | |
42 | char c_SI = SI; | |
43 | char c_SOH = SOH; | |
44 | ||
45 | /* create child to open comm line */ | |
46 | child = -1; | |
47 | sprintf(com, "/dev/%s", dev->D_line); | |
48 | if ((child = fork()) == 0) { | |
49 | signal(SIGINT, SIG_DFL); | |
50 | open(com, 0); | |
51 | DEBUG(5, "%s Opened.", com); | |
52 | sleep(5); | |
53 | exit(1); | |
54 | } | |
55 | ||
56 | if ((p = index(dev->D_calldev, ',')) == NULL) { | |
57 | DEBUG(2, "No dialer/modem specification\n", 0); | |
58 | goto failret; | |
59 | } | |
60 | *p++ = '\0'; | |
61 | if (*p < '0' || *p > '7') { | |
62 | logent(p, "Bad dialer address/modem type"); | |
63 | goto failret; | |
64 | } | |
65 | dialer = *p++; | |
66 | if (*p < '0' || *p > '>') { | |
67 | logent(p, "Bad modem address"); | |
68 | goto failret; | |
69 | } | |
70 | modem = *p++; | |
71 | if (*p++ == ',') | |
72 | dialspeed = atoi (p); | |
73 | else | |
74 | dialspeed = dev->D_speed; | |
75 | if (setjmp(Sjbuf)) { | |
76 | logent("vmacsopn", "TIMEOUT"); | |
77 | i = CF_DIAL; | |
78 | goto ret; | |
79 | } | |
80 | DEBUG(4, "STARTING CALL\n", 0); | |
81 | sprintf(acu, "/dev/%s", dev->D_calldev); | |
82 | getnextfd(); | |
83 | signal(SIGALRM, alarmtr); | |
e4fd84a1 | 84 | alarm(60); |
0819c7c7 RC |
85 | if ((va = open(acu, 2)) < 0) { |
86 | logent(acu, "CAN'T OPEN"); | |
87 | i = CF_NODEV; | |
88 | goto ret; | |
89 | } | |
90 | DEBUG(5, "ACU %s opened.\n", acu); | |
7f63b897 | 91 | next_fd = -1; |
0819c7c7 RC |
92 | fixline(va, dialspeed); |
93 | ||
94 | write(va, &c_SOH, 1); /* abort, reset the dialer */ | |
95 | do { | |
96 | if (read (va, &c, 1) != 1) { | |
97 | logent ("MACS initialization", _FAILED); | |
98 | goto failret; | |
99 | } | |
100 | } while ((c&0177) != 'B'); | |
101 | DEBUG(5, "ACU initialized\n", 0); | |
102 | ||
103 | write(va, &c_STX, 1); /* start text, access adaptor */ | |
104 | write(va, &dialer, 1); /* send dialer address digit */ | |
105 | write(va, &modem, 1); /* send modem address digit */ | |
e4fd84a1 JB |
106 | for (p=ph; *p; p++) { |
107 | if (*p == '=' || (*p >= '0' && *p <= '9')) | |
108 | write(va, p, 1); | |
109 | } | |
0819c7c7 RC |
110 | write(va, &c_SI, 1); /* send buffer empty */ |
111 | write(va, &c_ETX, 1); /* end of text, initiate call */ | |
112 | ||
113 | if (read(va, &c, 1) != 1) { | |
114 | logent("ACU READ", _FAILED); | |
115 | goto failret; | |
116 | } | |
117 | switch(c) { | |
118 | case 'A': | |
119 | /* Fine! */ | |
120 | DEBUG(5, "Call connected\n", 0); | |
121 | break; | |
122 | case 'B': | |
e4fd84a1 | 123 | DEBUG(2, "Dialer Timeout or Abort\n", 0); |
0819c7c7 RC |
124 | goto failret; |
125 | case 'D': | |
126 | DEBUG(2, "Dialer format error\n", 0); | |
127 | goto failret; | |
128 | case 'E': | |
129 | DEBUG(2, "Dialer parity error\n", 0); | |
130 | goto failret; | |
131 | case 'F': | |
132 | DEBUG(2, "Phone number too long\n", 0); | |
133 | goto failret; | |
134 | case 'G': | |
135 | DEBUG(2, "Busy signal\n", 0); | |
136 | goto failret; | |
137 | default: | |
138 | DEBUG(2, "Unknown MACS return code '%c'\n", i); | |
139 | goto failret; | |
140 | } | |
141 | /* | |
142 | * open line - will return on carrier | |
143 | */ | |
144 | if ((i = open(com, 2)) < 0) { | |
145 | if (errno == EIO) | |
146 | logent("carrier", "LOST"); | |
147 | else | |
148 | logent("dialup open", _FAILED); | |
149 | goto failret; | |
150 | } | |
151 | fixline(i, dev->D_speed); | |
152 | goto ret; | |
153 | failret: | |
154 | i = CF_DIAL; | |
155 | ret: | |
156 | alarm(0); | |
157 | if (child > 1) | |
158 | kill(child, SIGKILL); | |
159 | close(va); | |
e4fd84a1 | 160 | sleep(2); |
0819c7c7 RC |
161 | return i; |
162 | } | |
163 | ||
164 | vmacscls(fd) | |
165 | register int fd; | |
166 | { | |
167 | char c_SOH = SOH; | |
168 | ||
169 | DEBUG(2, "MACS close %d\n", fd); | |
170 | write(fd, &c_SOH, 1); | |
171 | /* ioctl(fd, TIOCCDTR, NULL);*/ | |
172 | close(fd); | |
173 | } |