1 /* 2 * Copyright (c) 1983 The Regents of the University of California. 3 * 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[] = "from: @(#)acu.c 5.8 (Berkeley) 3/2/91";*/ 36 static char rcsid[] = "$Id: acu.c,v 1.2 1993/08/01 18:06:46 mycroft Exp $"; 37 #endif /* not lint */ 38 39 #include "tip.h" 40 41 static acu_t *acu = NOACU; 42 static int conflag; 43 static void acuabort(); 44 static acu_t *acutype(); 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() 64 { 65 register 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 != NOSTR) 72 pwrite(FD, CM, size(CM)); 73 logent(value(HOST), "", DV, "call completed"); 74 return (NOSTR); 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 != NOACU) { 88 boolean(value(VERBOSE)) = FALSE; 89 if (conflag) 90 disconnect(NOSTR); 91 else 92 (*acu->acu_abort)(); 93 } 94 return ("interrupt"); 95 } 96 if ((acu = acutype(AT)) == NOACU) 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 logent(value(HOST), phnum, acu->acu_name, 107 "call completed"); 108 return (NOSTR); 109 } else 110 logent(value(HOST), phnum, acu->acu_name, 111 "call failed"); 112 tried++; 113 } 114 } else { 115 if ((fd = fopen(PH, "r")) == NOFILE) { 116 printf("%s: ", PH); 117 return ("can't open phone number file"); 118 } 119 while (fgets(string, sizeof(string), fd) != NOSTR) { 120 for (cp = string; !any(*cp, " \t\n"); cp++) 121 ; 122 if (*cp == '\n') { 123 fclose(fd); 124 return ("unrecognizable host name"); 125 } 126 *cp++ = '\0'; 127 if (strcmp(string, value(HOST))) 128 continue; 129 while (any(*cp, " \t")) 130 cp++; 131 if (*cp == '\n') { 132 fclose(fd); 133 return ("missing phone number"); 134 } 135 for (phnum = cp; *cp && *cp != ',' && *cp != '\n'; cp++) 136 ; 137 if (*cp) 138 *cp++ = '\0'; 139 140 if (conflag = (*acu->acu_dialer)(phnum, CU)) { 141 fclose(fd); 142 logent(value(HOST), phnum, acu->acu_name, 143 "call completed"); 144 return (NOSTR); 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 disconnect(reason) 160 char *reason; 161 { 162 if (!conflag) { 163 logent(value(HOST), "", DV, "call terminated"); 164 return; 165 } 166 if (reason == NOSTR) { 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(s) 177 { 178 signal(s, SIG_IGN); 179 longjmp(jmpbuf, 1); 180 } 181 182 static acu_t * 183 acutype(s) 184 register char *s; 185 { 186 register acu_t *p; 187 extern acu_t acutable[]; 188 189 for (p = acutable; p->acu_name != '\0'; p++) 190 if (!strcmp(s, p->acu_name)) 191 return (p); 192 return (NOACU); 193 } 194