1 /*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * %sccs.include.redist.c%
6 */
7
8 #ifndef lint
9 static char sccsid[] = "@(#)v3451.c 8.1 (Berkeley) 06/06/93";
10 #endif /* not lint */
11
12 /*
13 * Routines for calling up on a Vadic 3451 Modem
14 */
15 #include "tip.h"
16
17 static jmp_buf Sjbuf;
18
v3451_dialer(num,acu)19 v3451_dialer(num, acu)
20 register char *num;
21 char *acu;
22 {
23 sig_t func;
24 int ok;
25 int slow = number(value(BAUDRATE)) < 1200, rw = 2;
26 char phone[50];
27 #ifdef ACULOG
28 char line[80];
29 #endif
30 static int expect();
31 static void vawrite();
32
33 /*
34 * Get in synch
35 */
36 vawrite("I\r", 1 + slow);
37 vawrite("I\r", 1 + slow);
38 vawrite("I\r", 1 + slow);
39 vawrite("\005\r", 2 + slow);
40 if (!expect("READY")) {
41 printf("can't synchronize with vadic 3451\n");
42 #ifdef ACULOG
43 logent(value(HOST), num, "vadic", "can't synch up");
44 #endif
45 return (0);
46 }
47 ioctl(FD, TIOCHPCL, 0);
48 sleep(1);
49 vawrite("D\r", 2 + slow);
50 if (!expect("NUMBER?")) {
51 printf("Vadic will not accept dial command\n");
52 #ifdef ACULOG
53 logent(value(HOST), num, "vadic", "will not accept dial");
54 #endif
55 return (0);
56 }
57 strcpy(phone, num);
58 strcat(phone, "\r");
59 vawrite(phone, 1 + slow);
60 if (!expect(phone)) {
61 printf("Vadic will not accept phone number\n");
62 #ifdef ACULOG
63 logent(value(HOST), num, "vadic", "will not accept number");
64 #endif
65 return (0);
66 }
67 func = signal(SIGINT,SIG_IGN);
68 /*
69 * You cannot interrupt the Vadic when its dialing;
70 * even dropping DTR does not work (definitely a
71 * brain damaged design).
72 */
73 vawrite("\r", 1 + slow);
74 vawrite("\r", 1 + slow);
75 if (!expect("DIALING:")) {
76 printf("Vadic failed to dial\n");
77 #ifdef ACULOG
78 logent(value(HOST), num, "vadic", "failed to dial");
79 #endif
80 return (0);
81 }
82 if (boolean(value(VERBOSE)))
83 printf("\ndialing...");
84 ok = expect("ON LINE");
85 signal(SIGINT, func);
86 if (!ok) {
87 printf("call failed\n");
88 #ifdef ACULOG
89 logent(value(HOST), num, "vadic", "call failed");
90 #endif
91 return (0);
92 }
93 ioctl(FD, TIOCFLUSH, &rw);
94 return (1);
95 }
96
v3451_disconnect()97 v3451_disconnect()
98 {
99
100 close(FD);
101 }
102
v3451_abort()103 v3451_abort()
104 {
105
106 close(FD);
107 }
108
109 static void
vawrite(cp,delay)110 vawrite(cp, delay)
111 register char *cp;
112 int delay;
113 {
114
115 for (; *cp; sleep(delay), cp++)
116 write(FD, cp, 1);
117 }
118
119 static
expect(cp)120 expect(cp)
121 register char *cp;
122 {
123 char buf[300];
124 register char *rp = buf;
125 int timeout = 30, online = 0;
126 static int notin();
127 static void alarmtr();
128
129 if (strcmp(cp, "\"\"") == 0)
130 return (1);
131 *rp = 0;
132 /*
133 * If we are waiting for the Vadic to complete
134 * dialing and get a connection, allow more time
135 * Unfortunately, the Vadic times out 24 seconds after
136 * the last digit is dialed
137 */
138 online = strcmp(cp, "ON LINE") == 0;
139 if (online)
140 timeout = number(value(DIALTIMEOUT));
141 signal(SIGALRM, alarmtr);
142 if (setjmp(Sjbuf))
143 return (0);
144 alarm(timeout);
145 while (notin(cp, buf) && rp < buf + sizeof (buf) - 1) {
146 if (online && notin("FAILED CALL", buf) == 0)
147 return (0);
148 if (read(FD, rp, 1) < 0) {
149 alarm(0);
150 return (0);
151 }
152 if (*rp &= 0177)
153 rp++;
154 *rp = '\0';
155 }
156 alarm(0);
157 return (1);
158 }
159
160 static void
alarmtr()161 alarmtr()
162 {
163 longjmp(Sjbuf, 1);
164 }
165
166 static int
notin(sh,lg)167 notin(sh, lg)
168 char *sh, *lg;
169 {
170 static int prefix();
171
172 for (; *lg; lg++)
173 if (prefix(sh, lg))
174 return (0);
175 return (1);
176 }
177
178 static
prefix(s1,s2)179 prefix(s1, s2)
180 register char *s1, *s2;
181 {
182 register char c;
183
184 while ((c = *s1++) == *s2++)
185 if (c == '\0')
186 return (1);
187 return (c == '\0');
188 }
189