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 "tipconf.h" 38 #include "tip.h" 39 40 #if UNIDIALER 41 acu_t* unidialer_getmodem (const char *modem_name); 42 #endif 43 44 static acu_t *acu = NULL; 45 static int conflag; 46 static void acuabort(int); 47 static acu_t *acutype(char *); 48 static jmp_buf jmpbuf; 49 /* 50 * Establish connection for tip 51 * 52 * If DU is true, we should dial an ACU whose type is AT. 53 * The phone numbers are in PN, and the call unit is in CU. 54 * 55 * If the PN is an '@', then we consult the PHONES file for 56 * the phone numbers. This file is /etc/phones, unless overriden 57 * by an exported shell variable. 58 * 59 * The data base files must be in the format: 60 * host-name[ \t]*phone-number 61 * with the possibility of multiple phone numbers 62 * for a single host acting as a rotary (in the order 63 * found in the file). 64 */ 65 char * 66 connect(void) 67 { 68 char *cp = PN; 69 char *phnum, string[256]; 70 FILE *fd; 71 int tried = 0; 72 73 if (!DU) { /* regular connect message */ 74 if (CM != NULL) 75 xpwrite(FD, CM, size(CM)); 76 logent(value(HOST), "", DV, "call completed"); 77 return (NULL); 78 } 79 /* 80 * @ =>'s use data base in PHONES environment variable 81 * otherwise, use /etc/phones 82 */ 83 signal(SIGINT, acuabort); 84 signal(SIGQUIT, acuabort); 85 if (setjmp(jmpbuf)) { 86 signal(SIGINT, SIG_IGN); 87 signal(SIGQUIT, SIG_IGN); 88 printf("\ncall aborted\n"); 89 logent(value(HOST), "", "", "call aborted"); 90 if (acu != NULL) { 91 boolean(value(VERBOSE)) = FALSE; 92 if (conflag) 93 disconnect(NULL); 94 else 95 (*acu->acu_abort)(); 96 } 97 return ("interrupt"); 98 } 99 if ((acu = acutype(AT)) == NULL) 100 return ("unknown ACU type"); 101 if (*cp != '@') { 102 while (*cp) { 103 for (phnum = cp; *cp && *cp != ','; cp++) 104 ; 105 if (*cp) 106 *cp++ = '\0'; 107 108 if ((conflag = (*acu->acu_dialer)(phnum, CU))) { 109 if (CM != NULL) 110 xpwrite(FD, CM, size(CM)); 111 logent(value(HOST), phnum, acu->acu_name, 112 "call completed"); 113 return (NULL); 114 } else 115 logent(value(HOST), phnum, acu->acu_name, 116 "call failed"); 117 tried++; 118 } 119 } else { 120 if ((fd = fopen(PH, "r")) == NULL) { 121 printf("%s: ", PH); 122 return ("can't open phone number file"); 123 } 124 while (fgets(string, sizeof(string), fd) != NULL) { 125 for (cp = string; !any(*cp, " \t\n"); cp++) 126 ; 127 if (*cp == '\n') { 128 fclose(fd); 129 return ("unrecognizable host name"); 130 } 131 *cp++ = '\0'; 132 if (strcmp(string, value(HOST))) 133 continue; 134 while (any(*cp, " \t")) 135 cp++; 136 if (*cp == '\n') { 137 fclose(fd); 138 return ("missing phone number"); 139 } 140 for (phnum = cp; *cp && *cp != ',' && *cp != '\n'; cp++) 141 ; 142 if (*cp) 143 *cp++ = '\0'; 144 145 if ((conflag = (*acu->acu_dialer)(phnum, CU))) { 146 fclose(fd); 147 if (CM != NULL) 148 xpwrite(FD, CM, size(CM)); 149 logent(value(HOST), phnum, acu->acu_name, 150 "call completed"); 151 return (NULL); 152 } else 153 logent(value(HOST), phnum, acu->acu_name, 154 "call failed"); 155 tried++; 156 } 157 fclose(fd); 158 } 159 if (!tried) 160 logent(value(HOST), "", acu->acu_name, "missing phone number"); 161 else 162 (*acu->acu_abort)(); 163 return (tried ? "call failed" : "missing phone number"); 164 } 165 166 void 167 disconnect(char *reason) 168 { 169 if (!conflag) { 170 logent(value(HOST), "", DV, "call terminated"); 171 return; 172 } 173 if (reason == NULL) { 174 logent(value(HOST), "", acu->acu_name, "call terminated"); 175 if (boolean(value(VERBOSE))) 176 printf("\r\ndisconnecting..."); 177 } else 178 logent(value(HOST), "", acu->acu_name, reason); 179 (*acu->acu_disconnect)(); 180 } 181 182 static void 183 acuabort(int s) 184 { 185 signal(s, SIG_IGN); 186 longjmp(jmpbuf, 1); 187 } 188 189 static acu_t * 190 acutype(char *s) 191 { 192 #if UNIDIALER 193 return unidialer_getmodem (s); 194 #else 195 return (NULL); 196 #endif 197 } 198