Annotation of src/usr.bin/tip/acu.c, Revision 1.1
1.1 ! deraadt 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: }
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