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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[] = "@(#)remote.c 5.5 (Berkeley) 6/1/90"; ! 22: #endif /* not lint */ ! 23: ! 24: # include "tip.h" ! 25: ! 26: /* ! 27: * Attributes to be gleened from remote host description ! 28: * data base. ! 29: */ ! 30: static char **caps[] = { ! 31: &AT, &DV, &CM, &CU, &EL, &IE, &OE, &PN, &PR, &DI, ! 32: &ES, &EX, &FO, &RC, &RE, &PA ! 33: }; ! 34: ! 35: static char *capstrings[] = { ! 36: "at", "dv", "cm", "cu", "el", "ie", "oe", "pn", "pr", ! 37: "di", "es", "ex", "fo", "rc", "re", "pa", 0 ! 38: }; ! 39: ! 40: char *rgetstr(); ! 41: ! 42: static ! 43: getremcap(host) ! 44: register char *host; ! 45: { ! 46: int stat; ! 47: char tbuf[BUFSIZ]; ! 48: static char buf[BUFSIZ/2]; ! 49: char *bp = buf; ! 50: register char **p, ***q; ! 51: ! 52: if ((stat = rgetent(tbuf, host)) <= 0) { ! 53: if (DV || ! 54: host[0] == '/' && access(DV = host, R_OK | W_OK) == 0) { ! 55: CU = DV; ! 56: HO = host; ! 57: HW = 1; ! 58: DU = 0; ! 59: if (!BR) ! 60: BR = DEFBR; ! 61: FS = DEFFS; ! 62: return; ! 63: } ! 64: fprintf(stderr, stat == 0 ? ! 65: "tip: unknown host %s\n" : ! 66: "tip: can't open host description file\n", host); ! 67: exit(3); ! 68: } ! 69: ! 70: for (p = capstrings, q = caps; *p != NULL; p++, q++) ! 71: if (**q == NULL) ! 72: **q = rgetstr(*p, &bp); ! 73: if (!BR && (BR = rgetnum("br")) < 0) ! 74: BR = DEFBR; ! 75: if ((FS = rgetnum("fs")) < 0) ! 76: FS = DEFFS; ! 77: if (DU < 0) ! 78: DU = 0; ! 79: else ! 80: DU = rgetflag("du"); ! 81: if (DV == NOSTR) { ! 82: fprintf(stderr, "%s: missing device spec\n", host); ! 83: exit(3); ! 84: } ! 85: if (DU && CU == NOSTR) ! 86: CU = DV; ! 87: if (DU && PN == NOSTR) { ! 88: fprintf(stderr, "%s: missing phone number\n", host); ! 89: exit(3); ! 90: } ! 91: ! 92: HD = rgetflag("hd"); ! 93: ! 94: /* ! 95: * This effectively eliminates the "hw" attribute ! 96: * from the description file ! 97: */ ! 98: if (!HW) ! 99: HW = (CU == NOSTR) || (DU && equal(DV, CU)); ! 100: HO = host; ! 101: /* ! 102: * see if uppercase mode should be turned on initially ! 103: */ ! 104: if (rgetflag("ra")) ! 105: boolean(value(RAISE)) = 1; ! 106: if (rgetflag("ec")) ! 107: boolean(value(ECHOCHECK)) = 1; ! 108: if (rgetflag("be")) ! 109: boolean(value(BEAUTIFY)) = 1; ! 110: if (rgetflag("nb")) ! 111: boolean(value(BEAUTIFY)) = 0; ! 112: if (rgetflag("sc")) ! 113: boolean(value(SCRIPT)) = 1; ! 114: if (rgetflag("tb")) ! 115: boolean(value(TABEXPAND)) = 1; ! 116: if (rgetflag("vb")) ! 117: boolean(value(VERBOSE)) = 1; ! 118: if (rgetflag("nv")) ! 119: boolean(value(VERBOSE)) = 0; ! 120: if (rgetflag("ta")) ! 121: boolean(value(TAND)) = 1; ! 122: if (rgetflag("nt")) ! 123: boolean(value(TAND)) = 0; ! 124: if (rgetflag("rw")) ! 125: boolean(value(RAWFTP)) = 1; ! 126: if (rgetflag("hd")) ! 127: boolean(value(HALFDUPLEX)) = 1; ! 128: if (RE == NOSTR) ! 129: RE = (char *)"tip.record"; ! 130: if (EX == NOSTR) ! 131: EX = (char *)"\t\n\b\f"; ! 132: if (ES != NOSTR) ! 133: vstring("es", ES); ! 134: if (FO != NOSTR) ! 135: vstring("fo", FO); ! 136: if (PR != NOSTR) ! 137: vstring("pr", PR); ! 138: if (RC != NOSTR) ! 139: vstring("rc", RC); ! 140: if ((DL = rgetnum("dl")) < 0) ! 141: DL = 0; ! 142: if ((CL = rgetnum("cl")) < 0) ! 143: CL = 0; ! 144: if ((ET = rgetnum("et")) < 0) ! 145: ET = 10; ! 146: } ! 147: ! 148: char * ! 149: getremote(host) ! 150: char *host; ! 151: { ! 152: register char *cp; ! 153: static char *next; ! 154: static int lookedup = 0; ! 155: ! 156: if (!lookedup) { ! 157: if (host == NOSTR && (host = getenv("HOST")) == NOSTR) { ! 158: fprintf(stderr, "tip: no host specified\n"); ! 159: exit(3); ! 160: } ! 161: getremcap(host); ! 162: next = DV; ! 163: lookedup++; ! 164: } ! 165: /* ! 166: * We return a new device each time we're called (to allow ! 167: * a rotary action to be simulated) ! 168: */ ! 169: if (next == NOSTR) ! 170: return (NOSTR); ! 171: if ((cp = index(next, ',')) == NULL) { ! 172: DV = next; ! 173: next = NOSTR; ! 174: } else { ! 175: *cp++ = '\0'; ! 176: DV = next; ! 177: next = cp; ! 178: } ! 179: return (DV); ! 180: }
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