1 /* $NetBSD: acu.c,v 1.3 1994/12/08 09:30:39 jtc Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)acu.c 8.1 (Berkeley) 6/6/93"; 39 #endif 40 static char rcsid[] = "$NetBSD: acu.c,v 1.3 1994/12/08 09:30:39 jtc Exp $"; 41 #endif /* not lint */ 42 43 #include "tip.h" 44 45 static acu_t *acu = NOACU; 46 static int conflag; 47 static void acuabort(); 48 static acu_t *acutype(); 49 static jmp_buf jmpbuf; 50 /* 51 * Establish connection for tip 52 * 53 * If DU is true, we should dial an ACU whose type is AT. 54 * The phone numbers are in PN, and the call unit is in CU. 55 * 56 * If the PN is an '@', then we consult the PHONES file for 57 * the phone numbers. This file is /etc/phones, unless overriden 58 * by an exported shell variable. 59 * 60 * The data base files must be in the format: 61 * host-name[ \t]*phone-number 62 * with the possibility of multiple phone numbers 63 * for a single host acting as a rotary (in the order 64 * found in the file). 65 */ 66 char * 67 connect() 68 { 69 register char *cp = PN; 70 char *phnum, string[256]; 71 FILE *fd; 72 int tried = 0; 73 74 if (!DU) { /* regular connect message */ 75 if (CM != NOSTR) 76 pwrite(FD, CM, size(CM)); 77 logent(value(HOST), "", DV, "call completed"); 78 return (NOSTR); 79 } 80 /* 81 * @ =>'s use data base in PHONES environment variable 82 * otherwise, use /etc/phones 83 */ 84 signal(SIGINT, acuabort); 85 signal(SIGQUIT, acuabort); 86 if (setjmp(jmpbuf)) { 87 signal(SIGINT, SIG_IGN); 88 signal(SIGQUIT, SIG_IGN); 89 printf("\ncall aborted\n"); 90 logent(value(HOST), "", "", "call aborted"); 91 if (acu != NOACU) { 92 boolean(value(VERBOSE)) = FALSE; 93 if (conflag) 94 disconnect(NOSTR); 95 else 96 (*acu->acu_abort)(); 97 } 98 return ("interrupt"); 99 } 100 if ((acu = acutype(AT)) == NOACU) 101 return ("unknown ACU type"); 102 if (*cp != '@') { 103 while (*cp) { 104 for (phnum = cp; *cp && *cp != ','; cp++) 105 ; 106 if (*cp) 107 *cp++ = '\0'; 108 109 if (conflag = (*acu->acu_dialer)(phnum, CU)) { 110 if (CM != NOSTR) 111 pwrite(FD, CM, size(CM)); 112 logent(value(HOST), phnum, acu->acu_name, 113 "call completed"); 114 return (NOSTR); 115 } else 116 logent(value(HOST), phnum, acu->acu_name, 117 "call failed"); 118 tried++; 119 } 120 } else { 121 if ((fd = fopen(PH, "r")) == NOFILE) { 122 printf("%s: ", PH); 123 return ("can't open phone number file"); 124 } 125 while (fgets(string, sizeof(string), fd) != NOSTR) { 126 for (cp = string; !any(*cp, " \t\n"); cp++) 127 ; 128 if (*cp == '\n') { 129 fclose(fd); 130 return ("unrecognizable host name"); 131 } 132 *cp++ = '\0'; 133 if (strcmp(string, value(HOST))) 134 continue; 135 while (any(*cp, " \t")) 136 cp++; 137 if (*cp == '\n') { 138 fclose(fd); 139 return ("missing phone number"); 140 } 141 for (phnum = cp; *cp && *cp != ',' && *cp != '\n'; cp++) 142 ; 143 if (*cp) 144 *cp++ = '\0'; 145 146 if (conflag = (*acu->acu_dialer)(phnum, CU)) { 147 fclose(fd); 148 if (CM != NOSTR) 149 pwrite(FD, CM, size(CM)); 150 logent(value(HOST), phnum, acu->acu_name, 151 "call completed"); 152 return (NOSTR); 153 } else 154 logent(value(HOST), phnum, acu->acu_name, 155 "call failed"); 156 tried++; 157 } 158 fclose(fd); 159 } 160 if (!tried) 161 logent(value(HOST), "", acu->acu_name, "missing phone number"); 162 else 163 (*acu->acu_abort)(); 164 return (tried ? "call failed" : "missing phone number"); 165 } 166 167 disconnect(reason) 168 char *reason; 169 { 170 if (!conflag) { 171 logent(value(HOST), "", DV, "call terminated"); 172 return; 173 } 174 if (reason == NOSTR) { 175 logent(value(HOST), "", acu->acu_name, "call terminated"); 176 if (boolean(value(VERBOSE))) 177 printf("\r\ndisconnecting..."); 178 } else 179 logent(value(HOST), "", acu->acu_name, reason); 180 (*acu->acu_disconnect)(); 181 } 182 183 static void 184 acuabort(s) 185 { 186 signal(s, SIG_IGN); 187 longjmp(jmpbuf, 1); 188 } 189 190 static acu_t * 191 acutype(s) 192 register char *s; 193 { 194 register acu_t *p; 195 extern acu_t acutable[]; 196 197 for (p = acutable; p->acu_name != '\0'; p++) 198 if (!strcmp(s, p->acu_name)) 199 return (p); 200 return (NOACU); 201 } 202