[unix-history] / usr / src / usr.bin / tip / remote.c

/*
 * 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) %G%";
#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
};

static char *capstrings[] = {
	"at", "dv", "cm", "cu", "el", "ie", "oe", "pn", "pr",
	"di", "es", "ex", "fo", "rc", "re", "pa", 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 (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);
}
Commit	Line	Data
051b1e55	1	/*
c9686c12 KB	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 the above copyright notice and this paragraph are
	7	* duplicated in all such forms and that any documentation,
	8	* advertising materials, and other materials related to such
	9	* distribution and use acknowledge that the software was developed
	10	* by the University of California, Berkeley. The name of the
	11	* University may not be used to endorse or promote products derived
	12	* from this software without specific prior written permission.
	13	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
	14	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
	15	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
051b1e55 DF	16	*/
051b1e55 DF	17
05862919	18	#ifndef lint
c9686c12 KB	19	static char sccsid[] = "@(#)remote.c 5.4 (Berkeley) %G%";
c9686c12 KB	20	#endif /* not lint */
8274ea85	21
05862919	22	# include "tip.h"
6b46907f	23
8274ea85 BJ	24	/*
	25	* Attributes to be gleened from remote host description
	26	* data base.
	27	*/
	28	static char **caps[] = {
6b46907f RC	29	&AT, &DV, &CM, &CU, &EL, &IE, &OE, &PN, &PR, &DI,
6b46907f RC	30	&ES, &EX, &FO, &RC, &RE, &PA
8274ea85 BJ	31	};
	32
	33	static char *capstrings[] = {
6b46907f RC	34	"at", "dv", "cm", "cu", "el", "ie", "oe", "pn", "pr",
6b46907f RC	35	"di", "es", "ex", "fo", "rc", "re", "pa", 0
8274ea85 BJ	36	};
	37
	38	char *rgetstr();
	39
	40	static
	41	getremcap(host)
	42	register char *host;
	43	{
	44	int stat;
	45	char tbuf[BUFSIZ];
	46	static char buf[BUFSIZ/2];
	47	char *bp = buf;
	48	register char p, *q;
	49
	50	if ((stat = rgetent(tbuf, host)) <= 0) {
eef2b2c1 MK	51	if (DV \|\|
	52	host[0] == '/' && access(DV = host, R_OK \| W_OK) == 0) {
	53	CU = DV;
	54	HO = host;
	55	HW = 1;
	56	DU = 0;
	57	if (!BR)
	58	BR = DEFBR;
	59	FS = DEFFS;
	60	return;
	61	}
8274ea85 BJ	62	fprintf(stderr, stat == 0 ?
	63	"tip: unknown host %s\n" :
	64	"tip: can't open host description file\n", host);
	65	exit(3);
	66	}
	67
	68	for (p = capstrings, q = caps; *p != NULL; p++, q++)
3f48242d SL	69	if (**q == NULL)
	70	*q = rgetstr(p, &bp);
	71	if (!BR && (BR = rgetnum("br")) < 0)
8274ea85 BJ	72	BR = DEFBR;
	73	if ((FS = rgetnum("fs")) < 0)
	74	FS = DEFFS;
3f48242d SL	75	if (DU < 0)
	76	DU = 0;
	77	else
	78	DU = rgetflag("du");
8274ea85 BJ	79	if (DV == NOSTR) {
	80	fprintf(stderr, "%s: missing device spec\n", host);
	81	exit(3);
	82	}
	83	if (DU && CU == NOSTR)
	84	CU = DV;
	85	if (DU && PN == NOSTR) {
	86	fprintf(stderr, "%s: missing phone number\n", host);
	87	exit(3);
	88	}
6b46907f RC	89
	90	HD = rgetflag("hd");
	91
3e90c816 SL	92	/*
	93	* This effectively eliminates the "hw" attribute
	94	* from the description file
	95	*/
	96	if (!HW)
	97	HW = (CU == NOSTR) \|\| (DU && equal(DV, CU));
8274ea85	98	HO = host;
6b46907f RC	99	/*
	100	* see if uppercase mode should be turned on initially
	101	*/
05862919 SL	102	if (rgetflag("ra"))
	103	boolean(value(RAISE)) = 1;
	104	if (rgetflag("ec"))
	105	boolean(value(ECHOCHECK)) = 1;
	106	if (rgetflag("be"))
	107	boolean(value(BEAUTIFY)) = 1;
	108	if (rgetflag("nb"))
	109	boolean(value(BEAUTIFY)) = 0;
	110	if (rgetflag("sc"))
	111	boolean(value(SCRIPT)) = 1;
	112	if (rgetflag("tb"))
	113	boolean(value(TABEXPAND)) = 1;
	114	if (rgetflag("vb"))
	115	boolean(value(VERBOSE)) = 1;
	116	if (rgetflag("nv"))
	117	boolean(value(VERBOSE)) = 0;
	118	if (rgetflag("ta"))
	119	boolean(value(TAND)) = 1;
	120	if (rgetflag("nt"))
	121	boolean(value(TAND)) = 0;
	122	if (rgetflag("rw"))
	123	boolean(value(RAWFTP)) = 1;
	124	if (rgetflag("hd"))
	125	boolean(value(HALFDUPLEX)) = 1;
9479d9a4	126	if (RE == NOSTR)
05862919	127	RE = (char *)"tip.record";
9479d9a4	128	if (EX == NOSTR)
05862919 SL	129	EX = (char *)"\t\n\b\f";
	130	if (ES != NOSTR)
	131	vstring("es", ES);
	132	if (FO != NOSTR)
	133	vstring("fo", FO);
	134	if (PR != NOSTR)
	135	vstring("pr", PR);
	136	if (RC != NOSTR)
	137	vstring("rc", RC);
	138	if ((DL = rgetnum("dl")) < 0)
	139	DL = 0;
	140	if ((CL = rgetnum("cl")) < 0)
	141	CL = 0;
	142	if ((ET = rgetnum("et")) < 0)
	143	ET = 10;
8274ea85 BJ	144	}
	145
	146	char *
	147	getremote(host)
	148	char *host;
	149	{
	150	register char *cp;
	151	static char *next;
	152	static int lookedup = 0;
	153
	154	if (!lookedup) {
	155	if (host == NOSTR && (host = getenv("HOST")) == NOSTR) {
	156	fprintf(stderr, "tip: no host specified\n");
	157	exit(3);
	158	}
	159	getremcap(host);
	160	next = DV;
	161	lookedup++;
	162	}
	163	/*
	164	* We return a new device each time we're called (to allow
	165	* a rotary action to be simulated)
	166	*/
	167	if (next == NOSTR)
3f48242d	168	return (NOSTR);
8274ea85 BJ	169	if ((cp = index(next, ',')) == NULL) {
	170	DV = next;
	171	next = NOSTR;
	172	} else {
	173	*cp++ = '\0';
	174	DV = next;
	175	next = cp;
	176	}
3f48242d	177	return (DV);
8274ea85	178	}