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 static void df_disconnect(void); 56 57 int 58 df02_dialer(num, acu) 59 char *num, *acu; 60 { 61 62 return (df_dialer(num, acu, 0)); 63 } 64 65 int 66 df03_dialer(num, acu) 67 char *num, *acu; 68 { 69 70 return (df_dialer(num, acu, 1)); 71 } 72 73 int 74 df_dialer(num, acu, df03) 75 char *num, *acu; 76 int df03; 77 { 78 int f = FD; 79 struct termios cntrl; 80 int speed = 0; 81 char c = '\0'; 82 83 tcgetattr(f, &cntrl); 84 cntrl.c_cflag |= HUPCL; 85 tcsetattr(f, TCSANOW, &cntrl); 86 if (setjmp(Sjbuf)) { 87 printf("connection timed out\r\n"); 88 df_disconnect(); 89 return (0); 90 } 91 if (boolean(value(VERBOSE))) 92 printf("\ndialing..."); 93 fflush(stdout); 94 #ifdef TIOCMSET 95 if (df03) { 96 int st = TIOCM_ST; /* secondary Transmit flag */ 97 98 tcgetattr(f, &cntrl); 99 speed = cfgetospeed(&cntrl); 100 if (speed != B1200) { /* must dial at 1200 baud */ 101 cfsetospeed(&cntrl, B1200); 102 cfsetispeed(&cntrl, B1200); 103 tcsetattr(f, TCSAFLUSH, &cntrl); 104 ioctl(f, TIOCMBIC, &st); /* clear ST for 300 baud */ 105 } else 106 ioctl(f, TIOCMBIS, &st); /* set ST for 1200 baud */ 107 } 108 #endif 109 signal(SIGALRM, timeout); 110 alarm(5 * strlen(num) + 10); 111 tcflush(f, TCIOFLUSH); 112 write(f, "\001", 1); 113 sleep(1); 114 write(f, "\002", 1); 115 write(f, num, strlen(num)); 116 read(f, &c, 1); 117 #ifdef TIOCMSET 118 if (df03 && speed != B1200) { 119 cfsetospeed(&cntrl, speed); 120 cfsetispeed(&cntrl, speed); 121 tcsetattr(f, TCSAFLUSH, &cntrl); 122 } 123 #endif 124 return (c == 'A'); 125 } 126 127 static void 128 df_disconnect(void) 129 { 130 write(FD, "\001", 1); 131 sleep(1); 132 tcflush(FD, TCIOFLUSH); 133 } 134 135 136 void 137 df_abort() 138 { 139 140 df_disconnect(); 141 } 142 143 144 static void 145 timeout() 146 { 147 148 longjmp(Sjbuf, 1); 149 } 150