1 /*
2 * Copyright (c) 1983 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #ifndef lint
35 static char sccsid[] = "@(#)df.c 5.4 (Berkeley) 3/2/91";
36 #endif /* not lint */
37
38 /*
39 * Dial the DF02-AC or DF03-AC
40 */
41
42 #include "tip.h"
43
44 static jmp_buf Sjbuf;
45 static void timeout();
46
df02_dialer(num,acu)47 df02_dialer(num, acu)
48 char *num, *acu;
49 {
50
51 return (df_dialer(num, acu, 0));
52 }
53
df03_dialer(num,acu)54 df03_dialer(num, acu)
55 char *num, *acu;
56 {
57
58 return (df_dialer(num, acu, 1));
59 }
60
df_dialer(num,acu,df03)61 df_dialer(num, acu, df03)
62 char *num, *acu;
63 int df03;
64 {
65 register int f = FD;
66 struct sgttyb buf;
67 int speed = 0, rw = 2;
68 char c = '\0';
69
70 ioctl(f, TIOCHPCL, 0); /* make sure it hangs up when done */
71 if (setjmp(Sjbuf)) {
72 printf("connection timed out\r\n");
73 df_disconnect();
74 return (0);
75 }
76 if (boolean(value(VERBOSE)))
77 printf("\ndialing...");
78 fflush(stdout);
79 #ifdef TIOCMSET
80 if (df03) {
81 int st = TIOCM_ST; /* secondary Transmit flag */
82
83 ioctl(f, TIOCGETP, &buf);
84 if (buf.sg_ospeed != B1200) { /* must dial at 1200 baud */
85 speed = buf.sg_ospeed;
86 buf.sg_ospeed = buf.sg_ispeed = B1200;
87 ioctl(f, TIOCSETP, &buf);
88 ioctl(f, TIOCMBIC, &st); /* clear ST for 300 baud */
89 } else
90 ioctl(f, TIOCMBIS, &st); /* set ST for 1200 baud */
91 }
92 #endif
93 signal(SIGALRM, timeout);
94 alarm(5 * strlen(num) + 10);
95 ioctl(f, TIOCFLUSH, &rw);
96 write(f, "\001", 1);
97 sleep(1);
98 write(f, "\002", 1);
99 write(f, num, strlen(num));
100 read(f, &c, 1);
101 #ifdef TIOCMSET
102 if (df03 && speed) {
103 buf.sg_ispeed = buf.sg_ospeed = speed;
104 ioctl(f, TIOCSETP, &buf);
105 }
106 #endif
107 return (c == 'A');
108 }
109
df_disconnect()110 df_disconnect()
111 {
112 int rw = 2;
113
114 write(FD, "\001", 1);
115 sleep(1);
116 ioctl(FD, TIOCFLUSH, &rw);
117 }
118
119
df_abort()120 df_abort()
121 {
122
123 df_disconnect();
124 }
125
126
127 static void
timeout()128 timeout()
129 {
130
131 longjmp(Sjbuf, 1);
132 }
133