1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. 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 8.1 (Berkeley) 6/6/93"; 36 #endif /* not lint */ 37 38 /* 39 * Dial the DF02-AC or DF03-AC 40 */ 41 42 #include "tipconf.h" 43 #include "tip.h" 44 45 static jmp_buf Sjbuf; 46 static void timeout(); 47 48 df02_dialer(num, acu) 49 char *num, *acu; 50 { 51 52 return (df_dialer(num, acu, 0)); 53 } 54 55 df03_dialer(num, acu) 56 char *num, *acu; 57 { 58 59 return (df_dialer(num, acu, 1)); 60 } 61 62 df_dialer(num, acu, df03) 63 char *num, *acu; 64 int df03; 65 { 66 register int f = FD; 67 int speed = 0, rw = 2; 68 char c = '\0'; 69 70 acu_hupcl (); 71 72 if (setjmp(Sjbuf)) { 73 printf("connection timed out\r\n"); 74 df_disconnect(); 75 return (0); 76 } 77 if (boolean(value(VERBOSE))) 78 printf("\ndialing..."); 79 fflush(stdout); 80 #ifdef TIOCMSET 81 if (df03) { 82 int st = TIOCM_ST; /* secondary Transmit flag */ 83 84 if ((speed = acu_getspeed ()) != B1200) { /* must dial at 1200 baud */ 85 acu_setspeed (B1200); 86 ioctl(f, TIOCMBIC, &st); /* clear ST for 300 baud */ 87 } else 88 ioctl(f, TIOCMBIS, &st); /* set ST for 1200 baud */ 89 } 90 #endif 91 signal(SIGALRM, timeout); 92 alarm(5 * strlen(num) + 10); 93 ioctl(f, TIOCFLUSH, &rw); 94 write(f, "\001", 1); 95 sleep(1); 96 write(f, "\002", 1); 97 write(f, num, strlen(num)); 98 read(f, &c, 1); 99 #ifdef TIOCMSET 100 if (df03 && speed) { 101 acu_setspeed (speed); 102 } 103 #endif 104 return (c == 'A'); 105 } 106 107 df_disconnect() 108 { 109 int rw = 2; 110 111 write(FD, "\001", 1); 112 sleep(1); 113 ioctl(FD, TIOCFLUSH, &rw); 114 } 115 116 117 df_abort() 118 { 119 120 df_disconnect(); 121 } 122 123 124 static void 125 timeout() 126 { 127 128 longjmp(Sjbuf, 1); 129 } 130