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1.1 ! root 1: /* ! 2: * Copyright (c) 1983 Regents of the University of California. ! 3: * All rights reserved. The Berkeley software License Agreement ! 4: * specifies the terms and conditions for redistribution. ! 5: */ ! 6: ! 7: #ifndef lint ! 8: static char sccsid[] = "@(#)remote.c 5.3 (Berkeley) 4/30/86"; ! 9: #endif not lint ! 10: ! 11: # include "tip.h" ! 12: ! 13: /* ! 14: * Attributes to be gleened from remote host description ! 15: * data base. ! 16: */ ! 17: static char **caps[] = { ! 18: &AT, &DV, &CM, &CU, &EL, &IE, &OE, &PN, &PR, &DI, ! 19: &ES, &EX, &FO, &RC, &RE, &PA ! 20: }; ! 21: ! 22: static char *capstrings[] = { ! 23: "at", "dv", "cm", "cu", "el", "ie", "oe", "pn", "pr", ! 24: "di", "es", "ex", "fo", "rc", "re", "pa", 0 ! 25: }; ! 26: ! 27: char *rgetstr(); ! 28: ! 29: static ! 30: getremcap(host) ! 31: register char *host; ! 32: { ! 33: int stat; ! 34: char tbuf[BUFSIZ]; ! 35: static char buf[BUFSIZ/2]; ! 36: char *bp = buf; ! 37: register char **p, ***q; ! 38: ! 39: if ((stat = rgetent(tbuf, host)) <= 0) { ! 40: if (DV || ! 41: host[0] == '/' && access(DV = host, R_OK | W_OK) == 0) { ! 42: CU = DV; ! 43: HO = host; ! 44: HW = 1; ! 45: DU = 0; ! 46: if (!BR) ! 47: BR = DEFBR; ! 48: FS = DEFFS; ! 49: return; ! 50: } ! 51: fprintf(stderr, stat == 0 ? ! 52: "tip: unknown host %s\n" : ! 53: "tip: can't open host description file\n", host); ! 54: exit(3); ! 55: } ! 56: ! 57: for (p = capstrings, q = caps; *p != NULL; p++, q++) ! 58: if (**q == NULL) ! 59: **q = rgetstr(*p, &bp); ! 60: if (!BR && (BR = rgetnum("br")) < 0) ! 61: BR = DEFBR; ! 62: if ((FS = rgetnum("fs")) < 0) ! 63: FS = DEFFS; ! 64: if (DU < 0) ! 65: DU = 0; ! 66: else ! 67: DU = rgetflag("du"); ! 68: if (DV == NOSTR) { ! 69: fprintf(stderr, "%s: missing device spec\n", host); ! 70: exit(3); ! 71: } ! 72: if (DU && CU == NOSTR) ! 73: CU = DV; ! 74: if (DU && PN == NOSTR) { ! 75: fprintf(stderr, "%s: missing phone number\n", host); ! 76: exit(3); ! 77: } ! 78: ! 79: HD = rgetflag("hd"); ! 80: ! 81: /* ! 82: * This effectively eliminates the "hw" attribute ! 83: * from the description file ! 84: */ ! 85: if (!HW) ! 86: HW = (CU == NOSTR) || (DU && equal(DV, CU)); ! 87: HO = host; ! 88: /* ! 89: * see if uppercase mode should be turned on initially ! 90: */ ! 91: if (rgetflag("ra")) ! 92: boolean(value(RAISE)) = 1; ! 93: if (rgetflag("ec")) ! 94: boolean(value(ECHOCHECK)) = 1; ! 95: if (rgetflag("be")) ! 96: boolean(value(BEAUTIFY)) = 1; ! 97: if (rgetflag("nb")) ! 98: boolean(value(BEAUTIFY)) = 0; ! 99: if (rgetflag("sc")) ! 100: boolean(value(SCRIPT)) = 1; ! 101: if (rgetflag("tb")) ! 102: boolean(value(TABEXPAND)) = 1; ! 103: if (rgetflag("vb")) ! 104: boolean(value(VERBOSE)) = 1; ! 105: if (rgetflag("nv")) ! 106: boolean(value(VERBOSE)) = 0; ! 107: if (rgetflag("ta")) ! 108: boolean(value(TAND)) = 1; ! 109: if (rgetflag("nt")) ! 110: boolean(value(TAND)) = 0; ! 111: if (rgetflag("rw")) ! 112: boolean(value(RAWFTP)) = 1; ! 113: if (rgetflag("hd")) ! 114: boolean(value(HALFDUPLEX)) = 1; ! 115: if (RE == NOSTR) ! 116: RE = (char *)"tip.record"; ! 117: if (EX == NOSTR) ! 118: EX = (char *)"\t\n\b\f"; ! 119: if (ES != NOSTR) ! 120: vstring("es", ES); ! 121: if (FO != NOSTR) ! 122: vstring("fo", FO); ! 123: if (PR != NOSTR) ! 124: vstring("pr", PR); ! 125: if (RC != NOSTR) ! 126: vstring("rc", RC); ! 127: if ((DL = rgetnum("dl")) < 0) ! 128: DL = 0; ! 129: if ((CL = rgetnum("cl")) < 0) ! 130: CL = 0; ! 131: if ((ET = rgetnum("et")) < 0) ! 132: ET = 10; ! 133: } ! 134: ! 135: char * ! 136: getremote(host) ! 137: char *host; ! 138: { ! 139: register char *cp; ! 140: static char *next; ! 141: static int lookedup = 0; ! 142: ! 143: if (!lookedup) { ! 144: if (host == NOSTR && (host = getenv("HOST")) == NOSTR) { ! 145: fprintf(stderr, "tip: no host specified\n"); ! 146: exit(3); ! 147: } ! 148: getremcap(host); ! 149: next = DV; ! 150: lookedup++; ! 151: } ! 152: /* ! 153: * We return a new device each time we're called (to allow ! 154: * a rotary action to be simulated) ! 155: */ ! 156: if (next == NOSTR) ! 157: return (NOSTR); ! 158: if ((cp = index(next, ',')) == NULL) { ! 159: DV = next; ! 160: next = NOSTR; ! 161: } else { ! 162: *cp++ = '\0'; ! 163: DV = next; ! 164: next = cp; ! 165: } ! 166: return (DV); ! 167: }
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