178 lines
3.6 KiB
C
Executable File
178 lines
3.6 KiB
C
Executable File
/*
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* Copyright (c) 1983 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*/
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#ident "@(#)remote.c 1.16 95/09/12 SMI" /* from UCB 5.3 4/30/86 */
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#include "tip.h"
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/*
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* Attributes to be gleened from remote host description
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* data base.
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*/
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static char **caps[] = {
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&AT, &DV, &CM, &CU, &EL, &IE, &OE, &PN, &PR, &DI,
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&ES, &EX, &FO, &RC, &RE, &PA
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};
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static char *capstrings[] = {
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"at", "dv", "cm", "cu", "el", "ie", "oe", "pn", "pr",
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"di", "es", "ex", "fo", "rc", "re", "pa", 0
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};
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char *rgetstr();
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static
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getremcap(host)
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register char *host;
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{
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int stat;
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char tbuf[BUFSIZ];
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static char buf[BUFSIZ/2];
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char *bp = buf;
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register char **p, ***q;
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if ((stat = rgetent(tbuf, host)) <= 0) {
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if (DV ||
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host[0] == '/' && access(DV = host, R_OK | W_OK) == 0) {
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/*
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* If the user specifies a device on the commandline,
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* don't trust it.
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*/
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if (host[0] == '/')
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trusted_device = 0;
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CU = DV;
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HO = host;
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HW = 1;
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DU = 0;
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if (!BR)
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BR = DEFBR;
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FS = DEFFS;
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RE = (char *)"tip.record";
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EX = (char *)"\t\n\b\f";
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DL = 0;
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CL = 0;
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ET = 10;
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return;
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}
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fprintf(stderr, stat == 0 ?
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"tip: unknown host %s\n" :
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"tip: can't open host description file\n", host);
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exit(3);
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}
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for (p = capstrings, q = caps; *p != NULL; p++, q++)
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if (**q == NULL)
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**q = rgetstr(*p, &bp);
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if (!BR && (BR = rgetnum("br")) < 0)
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BR = DEFBR;
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if ((FS = rgetnum("fs")) < 0)
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FS = DEFFS;
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if (DU < 0)
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DU = 0;
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else
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DU = rgetflag("du");
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if (DV == NOSTR) {
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fprintf(stderr, "%s: missing device spec\n", host);
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exit(3);
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}
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if (DU && CU == NOSTR)
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CU = DV;
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if (DU && PN == NOSTR) {
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fprintf(stderr, "%s: missing phone number\n", host);
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exit(3);
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}
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DB = rgetflag("db");
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/*
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* This effectively eliminates the "hw" attribute
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* from the description file
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*/
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if (!HW)
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HW = (CU == NOSTR) || (DU && equal(DV, CU));
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HO = host;
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/*
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* see if uppercase mode should be turned on initially
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*/
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if (rgetflag("ra"))
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boolean(value(RAISE)) = 1;
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if (rgetflag("ec"))
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boolean(value(ECHOCHECK)) = 1;
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if (rgetflag("be"))
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boolean(value(BEAUTIFY)) = 1;
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if (rgetflag("nb"))
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boolean(value(BEAUTIFY)) = 0;
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if (rgetflag("sc"))
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boolean(value(SCRIPT)) = 1;
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if (rgetflag("tb"))
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boolean(value(TABEXPAND)) = 1;
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if (rgetflag("vb"))
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boolean(value(VERBOSE)) = 1;
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if (rgetflag("nv"))
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boolean(value(VERBOSE)) = 0;
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if (rgetflag("ta"))
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boolean(value(TAND)) = 1;
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if (rgetflag("nt"))
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boolean(value(TAND)) = 0;
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if (rgetflag("rw"))
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boolean(value(RAWFTP)) = 1;
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if (rgetflag("hd"))
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boolean(value(HALFDUPLEX)) = 1;
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if (rgetflag("hf"))
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boolean(value(HARDWAREFLOW)) = 1;
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if (RE == NULL)
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RE = (char *)"tip.record";
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if (EX == NULL)
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EX = (char *)"\t\n\b\f";
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if (ES != NOSTR)
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vstring("es", ES);
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if (FO != NOSTR)
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vstring("fo", FO);
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if (PR != NOSTR)
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vstring("pr", PR);
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if (RC != NOSTR)
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vstring("rc", RC);
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if ((DL = rgetnum("dl")) < 0)
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DL = 0;
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if ((CL = rgetnum("cl")) < 0)
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CL = 0;
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if ((ET = rgetnum("et")) < 0)
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ET = 10;
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}
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char *
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getremote(host)
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char *host;
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{
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register char *cp;
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static char *next;
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static int lookedup = 0;
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if (!lookedup) {
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if (host == NOSTR && (host = getenv("HOST")) == NOSTR) {
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fprintf(stderr, "tip: no host specified\n");
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exit(3);
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}
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getremcap(host);
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next = DV;
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lookedup++;
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}
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/*
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* We return a new device each time we're called (to allow
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* a rotary action to be simulated)
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*/
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if (next == NOSTR)
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return (NOSTR);
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if ((cp = strchr(next, ',')) == NULL) {
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DV = next;
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next = NOSTR;
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} else {
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*cp++ = '\0';
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DV = next;
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next = cp;
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}
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return (DV);
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}
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