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 * @(#)acu.c 8.1 (Berkeley) 6/6/93 34 * $FreeBSD: src/usr.bin/tip/tip/acu.c,v 1.5 1999/08/28 01:06:31 peter Exp $ 35 */ 36 37 #include "tip.h" 38 39 acu_t* unidialer_getmodem (const char *modem_name); 40 41 static acu_t *acu = NULL; 42 static int conflag; 43 static void acuabort(int); 44 static acu_t *acutype(char *); 45 static jmp_buf jmpbuf; 46 /* 47 * Establish connection for tip 48 * 49 * If DU is true, we should dial an ACU whose type is AT. 50 * The phone numbers are in PN, and the call unit is in CU. 51 * 52 * If the PN is an '@', then we consult the PHONES file for 53 * the phone numbers. This file is /etc/phones, unless overriden 54 * by an exported shell variable. 55 * 56 * The data base files must be in the format: 57 * host-name[ \t]*phone-number 58 * with the possibility of multiple phone numbers 59 * for a single host acting as a rotary (in the order 60 * found in the file). 61 */ 62 char * 63 connect(void) 64 { 65 char *cp = PN; 66 char *phnum, string[256]; 67 FILE *fd; 68 int tried = 0; 69 70 if (!DU) { /* regular connect message */ 71 if (CM != NULL) 72 xpwrite(FD, CM, size(CM)); 73 logent(value(HOST), "", DV, "call completed"); 74 return (NULL); 75 } 76 /* 77 * @ =>'s use data base in PHONES environment variable 78 * otherwise, use /etc/phones 79 */ 80 signal(SIGINT, acuabort); 81 signal(SIGQUIT, acuabort); 82 if (setjmp(jmpbuf)) { 83 signal(SIGINT, SIG_IGN); 84 signal(SIGQUIT, SIG_IGN); 85 printf("\ncall aborted\n"); 86 logent(value(HOST), "", "", "call aborted"); 87 if (acu != NULL) { 88 boolean(value(VERBOSE)) = FALSE; 89 if (conflag) 90 disconnect(NULL); 91 else 92 (*acu->acu_abort)(); 93 } 94 return ("interrupt"); 95 } 96 if ((acu = acutype(AT)) == NULL) 97 return ("unknown ACU type"); 98 if (*cp != '@') { 99 while (*cp) { 100 for (phnum = cp; *cp && *cp != ','; cp++) 101 ; 102 if (*cp) 103 *cp++ = '\0'; 104 105 if ((conflag = (*acu->acu_dialer)(phnum, CU))) { 106 if (CM != NULL) 107 xpwrite(FD, CM, size(CM)); 108 logent(value(HOST), phnum, acu->acu_name, 109 "call completed"); 110 return (NULL); 111 } else 112 logent(value(HOST), phnum, acu->acu_name, 113 "call failed"); 114 tried++; 115 } 116 } else { 117 if ((fd = fopen(PH, "r")) == NULL) { 118 printf("%s: ", PH); 119 return ("can't open phone number file"); 120 } 121 while (fgets(string, sizeof(string), fd) != NULL) { 122 for (cp = string; !any(*cp, " \t\n"); cp++) 123 ; 124 if (*cp == '\n') { 125 fclose(fd); 126 return ("unrecognizable host name"); 127 } 128 *cp++ = '\0'; 129 if (strcmp(string, value(HOST))) 130 continue; 131 while (any(*cp, " \t")) 132 cp++; 133 if (*cp == '\n') { 134 fclose(fd); 135 return ("missing phone number"); 136 } 137 for (phnum = cp; *cp && *cp != ',' && *cp != '\n'; cp++) 138 ; 139 if (*cp) 140 *cp++ = '\0'; 141 142 if ((conflag = (*acu->acu_dialer)(phnum, CU))) { 143 fclose(fd); 144 if (CM != NULL) 145 xpwrite(FD, CM, size(CM)); 146 logent(value(HOST), phnum, acu->acu_name, 147 "call completed"); 148 return (NULL); 149 } else 150 logent(value(HOST), phnum, acu->acu_name, 151 "call failed"); 152 tried++; 153 } 154 fclose(fd); 155 } 156 if (!tried) 157 logent(value(HOST), "", acu->acu_name, "missing phone number"); 158 else 159 (*acu->acu_abort)(); 160 return (tried ? "call failed" : "missing phone number"); 161 } 162 163 void 164 disconnect(char *reason) 165 { 166 if (!conflag) { 167 logent(value(HOST), "", DV, "call terminated"); 168 return; 169 } 170 if (reason == NULL) { 171 logent(value(HOST), "", acu->acu_name, "call terminated"); 172 if (boolean(value(VERBOSE))) 173 printf("\r\ndisconnecting..."); 174 } else 175 logent(value(HOST), "", acu->acu_name, reason); 176 (*acu->acu_disconnect)(); 177 } 178 179 static void 180 acuabort(int s) 181 { 182 signal(s, SIG_IGN); 183 longjmp(jmpbuf, 1); 184 } 185 186 static acu_t * 187 acutype(char *s) 188 { 189 return unidialer_getmodem (s); 190 } 191