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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)acu.c 8.1 (Berkeley) 6/6/93 30 * $FreeBSD: src/usr.bin/tip/tip/acu.c,v 1.5 1999/08/28 01:06:31 peter Exp $ 31 */ 32 33 #include "tip.h" 34 35 acu_t* unidialer_getmodem (const char *modem_name); 36 37 static acu_t *acu = NULL; 38 static int conflag; 39 static void acuabort(int); 40 static acu_t *acutype(char *); 41 static jmp_buf jmpbuf; 42 /* 43 * Establish connection for tip 44 * 45 * If DU is true, we should dial an ACU whose type is AT. 46 * The phone numbers are in PN, and the call unit is in CU. 47 * 48 * If the PN is an '@', then we consult the PHONES file for 49 * the phone numbers. This file is /etc/phones, unless overriden 50 * by an exported shell variable. 51 * 52 * The data base files must be in the format: 53 * host-name[ \t]*phone-number 54 * with the possibility of multiple phone numbers 55 * for a single host acting as a rotary (in the order 56 * found in the file). 57 */ 58 char * 59 connect(void) 60 { 61 char *cp = PN; 62 char *phnum, string[256]; 63 FILE *fd; 64 int tried = 0; 65 66 if (!DU) { /* regular connect message */ 67 if (CM != NULL) 68 xpwrite(FD, CM, size(CM)); 69 logent(value(HOST), "", DV, "call completed"); 70 return (NULL); 71 } 72 /* 73 * @ =>'s use data base in PHONES environment variable 74 * otherwise, use /etc/phones 75 */ 76 signal(SIGINT, acuabort); 77 signal(SIGQUIT, acuabort); 78 if (setjmp(jmpbuf)) { 79 signal(SIGINT, SIG_IGN); 80 signal(SIGQUIT, SIG_IGN); 81 printf("\ncall aborted\n"); 82 logent(value(HOST), "", "", "call aborted"); 83 if (acu != NULL) { 84 boolean(value(VERBOSE)) = FALSE; 85 if (conflag) 86 disconnect(NULL); 87 else 88 (*acu->acu_abort)(); 89 } 90 return ("interrupt"); 91 } 92 if ((acu = acutype(AT)) == NULL) 93 return ("unknown ACU type"); 94 if (*cp != '@') { 95 while (*cp) { 96 for (phnum = cp; *cp && *cp != ','; cp++) 97 ; 98 if (*cp) 99 *cp++ = '\0'; 100 101 if ((conflag = (*acu->acu_dialer)(phnum, CU))) { 102 if (CM != NULL) 103 xpwrite(FD, CM, size(CM)); 104 logent(value(HOST), phnum, acu->acu_name, 105 "call completed"); 106 return (NULL); 107 } else 108 logent(value(HOST), phnum, acu->acu_name, 109 "call failed"); 110 tried++; 111 } 112 } else { 113 if ((fd = fopen(PH, "r")) == NULL) { 114 printf("%s: ", PH); 115 return ("can't open phone number file"); 116 } 117 while (fgets(string, sizeof(string), fd) != NULL) { 118 for (cp = string; !any(*cp, " \t\n"); cp++) 119 ; 120 if (*cp == '\n') { 121 fclose(fd); 122 return ("unrecognizable host name"); 123 } 124 *cp++ = '\0'; 125 if (strcmp(string, value(HOST))) 126 continue; 127 while (any(*cp, " \t")) 128 cp++; 129 if (*cp == '\n') { 130 fclose(fd); 131 return ("missing phone number"); 132 } 133 for (phnum = cp; *cp && *cp != ',' && *cp != '\n'; cp++) 134 ; 135 if (*cp) 136 *cp++ = '\0'; 137 138 if ((conflag = (*acu->acu_dialer)(phnum, CU))) { 139 fclose(fd); 140 if (CM != NULL) 141 xpwrite(FD, CM, size(CM)); 142 logent(value(HOST), phnum, acu->acu_name, 143 "call completed"); 144 return (NULL); 145 } else 146 logent(value(HOST), phnum, acu->acu_name, 147 "call failed"); 148 tried++; 149 } 150 fclose(fd); 151 } 152 if (!tried) 153 logent(value(HOST), "", acu->acu_name, "missing phone number"); 154 else 155 (*acu->acu_abort)(); 156 return (tried ? "call failed" : "missing phone number"); 157 } 158 159 void 160 disconnect(char *reason) 161 { 162 if (!conflag) { 163 logent(value(HOST), "", DV, "call terminated"); 164 return; 165 } 166 if (reason == NULL) { 167 logent(value(HOST), "", acu->acu_name, "call terminated"); 168 if (boolean(value(VERBOSE))) 169 printf("\r\ndisconnecting..."); 170 } else 171 logent(value(HOST), "", acu->acu_name, reason); 172 (*acu->acu_disconnect)(); 173 } 174 175 static void 176 acuabort(int s) 177 { 178 signal(s, SIG_IGN); 179 longjmp(jmpbuf, 1); 180 } 181 182 static acu_t * 183 acutype(char *s) 184 { 185 return unidialer_getmodem (s); 186 } 187