1 /* $OpenBSD: df.c,v 1.5 2001/10/24 18:38:58 millert Exp $ */ 2 /* $NetBSD: df.c,v 1.4 1995/10/29 00:49:51 pk Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)df.c 8.1 (Berkeley) 6/6/93"; 43 static char rcsid[] = "$OpenBSD: df.c,v 1.5 2001/10/24 18:38:58 millert Exp $"; 44 #endif 45 #endif /* not lint */ 46 47 /* 48 * Dial the DF02-AC or DF03-AC 49 */ 50 51 #include "tip.h" 52 53 static jmp_buf Sjbuf; 54 static void timeout(); 55 56 int 57 df02_dialer(num, acu) 58 char *num, *acu; 59 { 60 61 return (df_dialer(num, acu, 0)); 62 } 63 64 int 65 df03_dialer(num, acu) 66 char *num, *acu; 67 { 68 69 return (df_dialer(num, acu, 1)); 70 } 71 72 int 73 df_dialer(num, acu, df03) 74 char *num, *acu; 75 int df03; 76 { 77 int f = FD; 78 struct termios cntrl; 79 int speed = 0; 80 char c = '\0'; 81 82 tcgetattr(f, &cntrl); 83 cntrl.c_cflag |= HUPCL; 84 tcsetattr(f, TCSANOW, &cntrl); 85 if (setjmp(Sjbuf)) { 86 printf("connection timed out\r\n"); 87 df_disconnect(); 88 return (0); 89 } 90 if (boolean(value(VERBOSE))) 91 printf("\ndialing..."); 92 fflush(stdout); 93 #ifdef TIOCMSET 94 if (df03) { 95 int st = TIOCM_ST; /* secondary Transmit flag */ 96 97 tcgetattr(f, &cntrl); 98 speed = cfgetospeed(&cntrl); 99 if (speed != B1200) { /* must dial at 1200 baud */ 100 cfsetospeed(&cntrl, B1200); 101 cfsetispeed(&cntrl, B1200); 102 tcsetattr(f, TCSAFLUSH, &cntrl); 103 ioctl(f, TIOCMBIC, &st); /* clear ST for 300 baud */ 104 } else 105 ioctl(f, TIOCMBIS, &st); /* set ST for 1200 baud */ 106 } 107 #endif 108 signal(SIGALRM, timeout); 109 alarm(5 * strlen(num) + 10); 110 tcflush(f, TCIOFLUSH); 111 write(f, "\001", 1); 112 sleep(1); 113 write(f, "\002", 1); 114 write(f, num, strlen(num)); 115 read(f, &c, 1); 116 #ifdef TIOCMSET 117 if (df03 && speed != B1200) { 118 cfsetospeed(&cntrl, speed); 119 cfsetispeed(&cntrl, speed); 120 tcsetattr(f, TCSAFLUSH, &cntrl); 121 } 122 #endif 123 return (c == 'A'); 124 } 125 126 void 127 df_disconnect() 128 { 129 write(FD, "\001", 1); 130 sleep(1); 131 tcflush(FD, TCIOFLUSH); 132 } 133 134 135 void 136 df_abort() 137 { 138 139 df_disconnect(); 140 } 141 142 143 static void 144 timeout() 145 { 146 147 longjmp(Sjbuf, 1); 148 } 149