1 /* $NetBSD: df.c,v 1.4 1995/10/29 00:49:51 pk Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)df.c 8.1 (Berkeley) 6/6/93"; 39 #endif 40 static char rcsid[] = "$NetBSD: df.c,v 1.4 1995/10/29 00:49:51 pk Exp $"; 41 #endif /* not lint */ 42 43 /* 44 * Dial the DF02-AC or DF03-AC 45 */ 46 47 #include "tip.h" 48 49 static jmp_buf Sjbuf; 50 static void timeout(); 51 52 df02_dialer(num, acu) 53 char *num, *acu; 54 { 55 56 return (df_dialer(num, acu, 0)); 57 } 58 59 df03_dialer(num, acu) 60 char *num, *acu; 61 { 62 63 return (df_dialer(num, acu, 1)); 64 } 65 66 df_dialer(num, acu, df03) 67 char *num, *acu; 68 int df03; 69 { 70 register int f = FD; 71 struct termios cntrl; 72 int speed = 0, rw = 2; 73 char c = '\0'; 74 75 tcgetattr(f, &cntrl); 76 cntrl.c_cflag |= HUPCL; 77 tcsetattr(f, TCSANOW, &cntrl); 78 if (setjmp(Sjbuf)) { 79 printf("connection timed out\r\n"); 80 df_disconnect(); 81 return (0); 82 } 83 if (boolean(value(VERBOSE))) 84 printf("\ndialing..."); 85 fflush(stdout); 86 #ifdef TIOCMSET 87 if (df03) { 88 int st = TIOCM_ST; /* secondary Transmit flag */ 89 90 tcgetattr(f, &cntrl); 91 speed = cfgetospeed(&cntrl); 92 if (speed != B1200) { /* must dial at 1200 baud */ 93 cfsetospeed(&cntrl, B1200); 94 cfsetispeed(&cntrl, B1200); 95 tcsetattr(f, TCSAFLUSH, &cntrl); 96 ioctl(f, TIOCMBIC, &st); /* clear ST for 300 baud */ 97 } else 98 ioctl(f, TIOCMBIS, &st); /* set ST for 1200 baud */ 99 } 100 #endif 101 signal(SIGALRM, timeout); 102 alarm(5 * strlen(num) + 10); 103 tcflush(f, TCIOFLUSH); 104 write(f, "\001", 1); 105 sleep(1); 106 write(f, "\002", 1); 107 write(f, num, strlen(num)); 108 read(f, &c, 1); 109 #ifdef TIOCMSET 110 if (df03 && speed != B1200) { 111 cfsetospeed(&cntrl, speed); 112 cfsetispeed(&cntrl, speed); 113 tcsetattr(f, TCSAFLUSH, &cntrl); 114 } 115 #endif 116 return (c == 'A'); 117 } 118 119 df_disconnect() 120 { 121 int rw = 2; 122 123 write(FD, "\001", 1); 124 sleep(1); 125 tcflush(FD, TCIOFLUSH); 126 } 127 128 129 df_abort() 130 { 131 132 df_disconnect(); 133 } 134 135 136 static void 137 timeout() 138 { 139 140 longjmp(Sjbuf, 1); 141 } 142