1 /* $OpenBSD: v3451.c,v 1.9 2006/03/17 19:17:13 moritz Exp $ */
2 /* $NetBSD: v3451.c,v 1.6 1997/02/11 09:24:20 mrg Exp $ */
3
4 /*-
5 * SPDX-License-Identifier: BSD-3-Clause
6 *
7 * Copyright (c) 1983, 1993
8 * The Regents of the University of California. All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 #ifndef lint
37 #if 0
38 static char sccsid[] = "@(#)v3451.c 8.1 (Berkeley) 6/6/93";
39 static const char rcsid[] = "$OpenBSD: v3451.c,v 1.9 2006/03/17 19:17:13 moritz Exp $";
40 #endif
41 #endif /* not lint */
42
43 /*
44 * Routines for calling up on a Vadic 3451 Modem
45 */
46 #include "tip.h"
47
48 static jmp_buf Sjbuf;
49
50 static void vawrite(char *, int);
51 static int expect(char *);
52 static void alarmtr(int);
53 static int notin(char *, char *);
54 static int prefix(char *, char *);
55
56 int
v3451_dialer(char * num,char * acu)57 v3451_dialer(char *num, char *acu)
58 {
59 sig_t func;
60 int ok;
61 int slow = number(value(BAUDRATE)) < 1200;
62 char phone[50];
63 struct termios cntrl;
64
65 /*
66 * Get in synch
67 */
68 vawrite("I\r", 1 + slow);
69 vawrite("I\r", 1 + slow);
70 vawrite("I\r", 1 + slow);
71 vawrite("\005\r", 2 + slow);
72 if (!expect("READY")) {
73 printf("can't synchronize with vadic 3451\n");
74 #ifdef ACULOG
75 logent(value(HOST), num, "vadic", "can't synch up");
76 #endif
77 return (0);
78 }
79 tcgetattr(FD, &cntrl);
80 term.c_cflag |= HUPCL;
81 tcsetattr(FD, TCSANOW, &cntrl);
82 sleep(1);
83 vawrite("D\r", 2 + slow);
84 if (!expect("NUMBER?")) {
85 printf("Vadic will not accept dial command\n");
86 #ifdef ACULOG
87 logent(value(HOST), num, "vadic", "will not accept dial");
88 #endif
89 return (0);
90 }
91 (void)snprintf(phone, sizeof phone, "%s\r", num);
92 vawrite(phone, 1 + slow);
93 if (!expect(phone)) {
94 printf("Vadic will not accept phone number\n");
95 #ifdef ACULOG
96 logent(value(HOST), num, "vadic", "will not accept number");
97 #endif
98 return (0);
99 }
100 func = signal(SIGINT,SIG_IGN);
101 /*
102 * You cannot interrupt the Vadic when its dialing;
103 * even dropping DTR does not work (definitely a
104 * brain damaged design).
105 */
106 vawrite("\r", 1 + slow);
107 vawrite("\r", 1 + slow);
108 if (!expect("DIALING:")) {
109 printf("Vadic failed to dial\n");
110 #ifdef ACULOG
111 logent(value(HOST), num, "vadic", "failed to dial");
112 #endif
113 return (0);
114 }
115 if (boolean(value(VERBOSE)))
116 printf("\ndialing...");
117 ok = expect("ON LINE");
118 signal(SIGINT, func);
119 if (!ok) {
120 printf("call failed\n");
121 #ifdef ACULOG
122 logent(value(HOST), num, "vadic", "call failed");
123 #endif
124 return (0);
125 }
126 tcflush(FD, TCIOFLUSH);
127 return (1);
128 }
129
130 void
v3451_disconnect(void)131 v3451_disconnect(void)
132 {
133 close(FD);
134 }
135
136 void
v3451_abort(void)137 v3451_abort(void)
138 {
139 close(FD);
140 }
141
142 static void
vawrite(char * cp,int delay)143 vawrite(char *cp, int delay)
144 {
145 for (; *cp; sleep(delay), cp++)
146 write(FD, cp, 1);
147 }
148
149 static int
expect(char * cp)150 expect(char *cp)
151 {
152 char buf[300];
153 char *rp = buf;
154 int timeout = 30, online = 0;
155
156 if (strcmp(cp, "\"\"") == 0)
157 return (1);
158 *rp = 0;
159 /*
160 * If we are waiting for the Vadic to complete
161 * dialing and get a connection, allow more time
162 * Unfortunately, the Vadic times out 24 seconds after
163 * the last digit is dialed
164 */
165 online = strcmp(cp, "ON LINE") == 0;
166 if (online)
167 timeout = number(value(DIALTIMEOUT));
168 signal(SIGALRM, alarmtr);
169 if (setjmp(Sjbuf))
170 return (0);
171 alarm(timeout);
172 while (notin(cp, buf) && rp < buf + sizeof (buf) - 1) {
173 if (online && notin("FAILED CALL", buf) == 0)
174 return (0);
175 if (read(FD, rp, 1) < 0) {
176 alarm(0);
177 return (0);
178 }
179 if (*rp &= 0177)
180 rp++;
181 *rp = '\0';
182 }
183 alarm(0);
184 return (1);
185 }
186
187 /*ARGSUSED*/
188 static void
alarmtr(int signo)189 alarmtr(int signo)
190 {
191 longjmp(Sjbuf, 1);
192 }
193
194 static int
notin(char * sh,char * lg)195 notin(char *sh, char *lg)
196 {
197 for (; *lg; lg++)
198 if (prefix(sh, lg))
199 return (0);
200 return (1);
201 }
202
203 static int
prefix(char * s1,char * s2)204 prefix(char *s1, char *s2)
205 {
206 char c;
207
208 while ((c = *s1++) == *s2++)
209 if (c == '\0')
210 return (1);
211 return (c == '\0');
212 }
213