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1.1 ! root 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 are permitted ! 6: * provided that: (1) source distributions retain this entire copyright ! 7: * notice and comment, and (2) distributions including binaries display ! 8: * the following acknowledgement: ``This product includes software ! 9: * developed by the University of California, Berkeley and its contributors'' ! 10: * in the documentation or other materials provided with the distribution ! 11: * and in all advertising materials mentioning features or use of this ! 12: * software. Neither the name of the University nor the names of its ! 13: * contributors may be used to endorse or promote products derived ! 14: * from this software without specific prior written permission. ! 15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ! 16: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ! 17: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 18: */ ! 19: ! 20: #ifndef lint ! 21: static char sccsid[] = "@(#)acu.c 5.7 (Berkeley) 6/1/90"; ! 22: #endif /* not lint */ ! 23: ! 24: #include "tip.h" ! 25: ! 26: static acu_t *acu = NOACU; ! 27: static int conflag; ! 28: static int acuabort(); ! 29: static acu_t *acutype(); ! 30: static jmp_buf jmpbuf; ! 31: /* ! 32: * Establish connection for tip ! 33: * ! 34: * If DU is true, we should dial an ACU whose type is AT. ! 35: * The phone numbers are in PN, and the call unit is in CU. ! 36: * ! 37: * If the PN is an '@', then we consult the PHONES file for ! 38: * the phone numbers. This file is /etc/phones, unless overriden ! 39: * by an exported shell variable. ! 40: * ! 41: * The data base files must be in the format: ! 42: * host-name[ \t]*phone-number ! 43: * with the possibility of multiple phone numbers ! 44: * for a single host acting as a rotary (in the order ! 45: * found in the file). ! 46: */ ! 47: char * ! 48: connect() ! 49: { ! 50: register char *cp = PN; ! 51: char *phnum, string[256]; ! 52: FILE *fd; ! 53: int tried = 0; ! 54: ! 55: if (!DU) { /* regular connect message */ ! 56: if (CM != NOSTR) ! 57: pwrite(FD, CM, size(CM)); ! 58: logent(value(HOST), "", DV, "call completed"); ! 59: return (NOSTR); ! 60: } ! 61: /* ! 62: * @ =>'s use data base in PHONES environment variable ! 63: * otherwise, use /etc/phones ! 64: */ ! 65: signal(SIGINT, acuabort); ! 66: signal(SIGQUIT, acuabort); ! 67: if (setjmp(jmpbuf)) { ! 68: signal(SIGINT, SIG_IGN); ! 69: signal(SIGQUIT, SIG_IGN); ! 70: printf("\ncall aborted\n"); ! 71: logent(value(HOST), "", "", "call aborted"); ! 72: if (acu != NOACU) { ! 73: boolean(value(VERBOSE)) = FALSE; ! 74: if (conflag) ! 75: disconnect(NOSTR); ! 76: else ! 77: (*acu->acu_abort)(); ! 78: } ! 79: return ("interrupt"); ! 80: } ! 81: if ((acu = acutype(AT)) == NOACU) ! 82: return ("unknown ACU type"); ! 83: if (*cp != '@') { ! 84: while (*cp) { ! 85: for (phnum = cp; *cp && *cp != ','; cp++) ! 86: ; ! 87: if (*cp) ! 88: *cp++ = '\0'; ! 89: ! 90: if (conflag = (*acu->acu_dialer)(phnum, CU)) { ! 91: logent(value(HOST), phnum, acu->acu_name, ! 92: "call completed"); ! 93: return (NOSTR); ! 94: } else ! 95: logent(value(HOST), phnum, acu->acu_name, ! 96: "call failed"); ! 97: tried++; ! 98: } ! 99: } else { ! 100: if ((fd = fopen(PH, "r")) == NOFILE) { ! 101: printf("%s: ", PH); ! 102: return ("can't open phone number file"); ! 103: } ! 104: while (fgets(string, sizeof(string), fd) != NOSTR) { ! 105: for (cp = string; !any(*cp, " \t\n"); cp++) ! 106: ; ! 107: if (*cp == '\n') { ! 108: fclose(fd); ! 109: return ("unrecognizable host name"); ! 110: } ! 111: *cp++ = '\0'; ! 112: if (strcmp(string, value(HOST))) ! 113: continue; ! 114: while (any(*cp, " \t")) ! 115: cp++; ! 116: if (*cp == '\n') { ! 117: fclose(fd); ! 118: return ("missing phone number"); ! 119: } ! 120: for (phnum = cp; *cp && *cp != ',' && *cp != '\n'; cp++) ! 121: ; ! 122: if (*cp) ! 123: *cp++ = '\0'; ! 124: ! 125: if (conflag = (*acu->acu_dialer)(phnum, CU)) { ! 126: fclose(fd); ! 127: logent(value(HOST), phnum, acu->acu_name, ! 128: "call completed"); ! 129: return (NOSTR); ! 130: } else ! 131: logent(value(HOST), phnum, acu->acu_name, ! 132: "call failed"); ! 133: tried++; ! 134: } ! 135: fclose(fd); ! 136: } ! 137: if (!tried) ! 138: logent(value(HOST), "", acu->acu_name, "missing phone number"); ! 139: else ! 140: (*acu->acu_abort)(); ! 141: return (tried ? "call failed" : "missing phone number"); ! 142: } ! 143: ! 144: disconnect(reason) ! 145: char *reason; ! 146: { ! 147: if (!conflag) { ! 148: logent(value(HOST), "", DV, "call terminated"); ! 149: return; ! 150: } ! 151: if (reason == NOSTR) { ! 152: logent(value(HOST), "", acu->acu_name, "call terminated"); ! 153: if (boolean(value(VERBOSE))) ! 154: printf("\r\ndisconnecting..."); ! 155: } else ! 156: logent(value(HOST), "", acu->acu_name, reason); ! 157: (*acu->acu_disconnect)(); ! 158: } ! 159: ! 160: static int ! 161: acuabort(s) ! 162: { ! 163: signal(s, SIG_IGN); ! 164: longjmp(jmpbuf, 1); ! 165: } ! 166: ! 167: static acu_t * ! 168: acutype(s) ! 169: register char *s; ! 170: { ! 171: register acu_t *p; ! 172: extern acu_t acutable[]; ! 173: ! 174: for (p = acutable; p->acu_name != '\0'; p++) ! 175: if (!strcmp(s, p->acu_name)) ! 176: return (p); ! 177: return (NOACU); ! 178: }
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