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[] = "@(#)biz22.c 8.1 (Berkeley) 6/6/93"; 36 #endif /* not lint */ 37 38 #include "tipconf.h" 39 #include "tip.h" 40 41 #define DISCONNECT_CMD "\20\04" /* disconnection string */ 42 43 static void sigALRM(); 44 static int timeout = 0; 45 static jmp_buf timeoutbuf; 46 47 /* 48 * Dial up on a BIZCOMP Model 1022 with either 49 * tone dialing (mod = "V") 50 * pulse dialing (mod = "W") 51 */ 52 static int 53 biz_dialer(num, mod) 54 char *num, *mod; 55 { 56 register int connected = 0; 57 char cbuf[40]; 58 static int cmd(), detect(); 59 60 if (boolean(value(VERBOSE))) 61 printf("\nstarting call..."); 62 /* 63 * Disable auto-answer and configure for tone/pulse 64 * dialing 65 */ 66 if (cmd("\02K\r")) { 67 printf("can't initialize bizcomp..."); 68 return (0); 69 } 70 strcpy(cbuf, "\02.\r"); 71 cbuf[1] = *mod; 72 if (cmd(cbuf)) { 73 printf("can't set dialing mode..."); 74 return (0); 75 } 76 strcpy(cbuf, "\02D"); 77 strcat(cbuf, num); 78 strcat(cbuf, "\r"); 79 write(FD, cbuf, strlen(cbuf)); 80 if (!detect("7\r")) { 81 printf("can't get dial tone..."); 82 return (0); 83 } 84 if (boolean(value(VERBOSE))) 85 printf("ringing..."); 86 /* 87 * The reply from the BIZCOMP should be: 88 * 2 \r or 7 \r failure 89 * 1 \r success 90 */ 91 connected = detect("1\r"); 92 #if ACULOG 93 if (timeout) { 94 char line[80]; 95 96 sprintf(line, "%d second dial timeout", 97 number(value(DIALTIMEOUT))); 98 logent(value(HOST), num, "biz1022", line); 99 } 100 #endif 101 if (timeout) 102 biz22_disconnect(); /* insurance */ 103 return (connected); 104 } 105 106 biz22w_dialer(num, acu) 107 char *num, *acu; 108 { 109 110 return (biz_dialer(num, "W")); 111 } 112 113 biz22f_dialer(num, acu) 114 char *num, *acu; 115 { 116 117 return (biz_dialer(num, "V")); 118 } 119 120 biz22_disconnect() 121 { 122 int rw = 2; 123 124 write(FD, DISCONNECT_CMD, 4); 125 sleep(2); 126 ioctl(FD, TIOCFLUSH, &rw); 127 } 128 129 biz22_abort() 130 { 131 132 write(FD, "\02", 1); 133 } 134 135 static void 136 sigALRM() 137 { 138 139 timeout = 1; 140 longjmp(timeoutbuf, 1); 141 } 142 143 static int 144 cmd(s) 145 register char *s; 146 { 147 sig_t f; 148 char c; 149 150 write(FD, s, strlen(s)); 151 f = signal(SIGALRM, sigALRM); 152 if (setjmp(timeoutbuf)) { 153 biz22_abort(); 154 signal(SIGALRM, f); 155 return (1); 156 } 157 alarm(number(value(DIALTIMEOUT))); 158 read(FD, &c, 1); 159 alarm(0); 160 signal(SIGALRM, f); 161 c &= 0177; 162 return (c != '\r'); 163 } 164 165 static int 166 detect(s) 167 register char *s; 168 { 169 sig_t f; 170 char c; 171 172 f = signal(SIGALRM, sigALRM); 173 timeout = 0; 174 while (*s) { 175 if (setjmp(timeoutbuf)) { 176 biz22_abort(); 177 break; 178 } 179 alarm(number(value(DIALTIMEOUT))); 180 read(FD, &c, 1); 181 alarm(0); 182 c &= 0177; 183 if (c != *s++) 184 return (0); 185 } 186 signal(SIGALRM, f); 187 return (timeout == 0); 188 } 189