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- /*
- * Copyright (c) 1983 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)remote.c 5.4 (Berkeley) 9/2/88";
- #endif /* not lint */
-
- # include "tip.h"
-
- /*
- * Attributes to be gleened from remote host description
- * data base.
- */
- static char **caps[] = {
- &AT, &DV, &CM, &CU, &EL, &IE, &OE, &PN, &PR,
- &DI, &ES, &EX, &FO, &RC, &RE, &PA, &SA, &DA,
- &SM, &ST, &LS
- };
-
- static char *capstrings[] = {
- "at", "dv", "cm", "cu", "el", "ie", "oe", "pn", "pr",
- "di", "es", "ex", "fo", "rc", "re", "pa", "sa", "da",
- "sm", "st", "ls", 0
- };
-
- char *rgetstr();
-
- static
- getremcap(host)
- register char *host;
- {
- int stat;
- char tbuf[BUFSIZ];
- static char buf[BUFSIZ/2];
- char *bp = buf;
- register char **p, ***q;
-
- if ((stat = rgetent(tbuf, host)) <= 0) {
- if (DV ||
- host[0] == '/' && access(DV = host, R_OK | W_OK) == 0) {
- CU = DV;
- HO = host;
- HW = 1;
- DU = 0;
- if (!BR)
- BR = DEFBR;
- FS = DEFFS;
- return;
- }
- fprintf(stderr, stat == 0 ?
- "tip: unknown host %s\n" :
- "tip: can't open host description file\n", host);
- exit(3);
- }
-
- for (p = capstrings, q = caps; *p != NULL; p++, q++)
- if (**q == NULL)
- **q = rgetstr(*p, &bp);
- if (!BR && (BR = rgetnum("br")) < 0)
- BR = DEFBR;
- if ((FS = rgetnum("fs")) < 0)
- FS = DEFFS;
- if (DU < 0)
- DU = 0;
- else
- DU = rgetflag("du");
- if (DV == NOSTR) {
- fprintf(stderr, "%s: missing device spec\n", host);
- exit(3);
- }
- if (DU && CU == NOSTR)
- CU = DV;
- if (DU && PN == NOSTR) {
- fprintf(stderr, "%s: missing phone number\n", host);
- exit(3);
- }
-
- HD = rgetflag("hd");
-
- /*
- * This effectively eliminates the "hw" attribute
- * from the description file
- */
- if (!HW)
- HW = (CU == NOSTR) || (DU && equal(DV, CU));
- HO = host;
- /*
- * see if uppercase mode should be turned on initially
- */
- if (rgetflag("ra"))
- boolean(value(RAISE)) = 1;
- if (rgetflag("ec"))
- boolean(value(ECHOCHECK)) = 1;
- if (rgetflag("be"))
- boolean(value(BEAUTIFY)) = 1;
- if (rgetflag("nb"))
- boolean(value(BEAUTIFY)) = 0;
- if (rgetflag("sc"))
- boolean(value(SCRIPT)) = 1;
- if (rgetflag("tb"))
- boolean(value(TABEXPAND)) = 1;
- if (rgetflag("vb"))
- boolean(value(VERBOSE)) = 1;
- if (rgetflag("nv"))
- boolean(value(VERBOSE)) = 0;
- if (rgetflag("ta"))
- boolean(value(TAND)) = 1;
- if (rgetflag("nt"))
- boolean(value(TAND)) = 0;
- if (rgetflag("rw"))
- boolean(value(RAWFTP)) = 1;
- if (rgetflag("hd"))
- boolean(value(HALFDUPLEX)) = 1;
- if (rgetflag("rt"))
- boolean(value(SETROUTE)) = 1;
- if (rgetflag("li"))
- boolean(value(LINESYNC)) = 1;
- if (rgetflag("dt"))
- boolean(value(DTRHUP)) =1;
- if (RE == NOSTR)
- RE = (char *)"tip.record";
- if (EX == NOSTR)
- EX = (char *)"\t\n\b\f";
- if (ES != NOSTR)
- vstring("es", ES);
- if (FO != NOSTR)
- vstring("fo", FO);
- if (PR != NOSTR)
- vstring("pr", PR);
- if (RC != NOSTR)
- vstring("rc", RC);
- if ((DL = rgetnum("dl")) < 0)
- DL = 0;
- if ((CL = rgetnum("cl")) < 0)
- CL = 0;
- if ((ET = rgetnum("et")) < 0)
- ET = 10;
- }
-
- char *
- getremote(host)
- char *host;
- {
- register char *cp;
- static char *next;
- static int lookedup = 0;
-
- if (!lookedup) {
- if (host == NOSTR && (host = getenv("HOST")) == NOSTR) {
- fprintf(stderr, "tip: no host specified\n");
- exit(3);
- }
- getremcap(host);
- next = DV;
- lookedup++;
- }
- /*
- * We return a new device each time we're called (to allow
- * a rotary action to be simulated)
- */
- if (next == NOSTR)
- return (NOSTR);
- if ((cp = index(next, ',')) == NULL) {
- DV = next;
- next = NOSTR;
- } else {
- *cp++ = '\0';
- DV = next;
- next = cp;
- }
- return (DV);
- }
-