[unix-history] / usr / src / usr.bin / tip / tipout.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[] = "@(#)tipout.c	5.2 (Berkeley) %G%";
#endif /* not lint */

#include "tip.h"
/*
 * tip
 *
 * lower fork of tip -- handles passive side
 *  reading from the remote host
 */

static	jmp_buf sigbuf;

/*
 * TIPOUT wait state routine --
 *   sent by TIPIN when it wants to posses the remote host
 */
intIOT()
{

	write(repdes[1],&ccc,1);
	read(fildes[0], &ccc,1);
	longjmp(sigbuf, 1);
}

/*
 * Scripting command interpreter --
 *  accepts script file name over the pipe and acts accordingly
 */
intEMT()
{
	char c, line[256];
	register char *pline = line;
	char reply;

	read(fildes[0], &c, 1);
	while (c != '\n') {
		*pline++ = c;
		read(fildes[0], &c, 1);
	}
	*pline = '\0';
	if (boolean(value(SCRIPT)) && fscript != NULL)
		fclose(fscript);
	if (pline == line) {
		boolean(value(SCRIPT)) = FALSE;
		reply = 'y';
	} else {
		if ((fscript = fopen(line, "a")) == NULL)
			reply = 'n';
		else {
			reply = 'y';
			boolean(value(SCRIPT)) = TRUE;
		}
	}
	write(repdes[1], &reply, 1);
	longjmp(sigbuf, 1);
}

intTERM()
{

	if (boolean(value(SCRIPT)) && fscript != NULL)
		fclose(fscript);
	exit(0);
}

intSYS()
{

	boolean(value(BEAUTIFY)) = !boolean(value(BEAUTIFY));
	longjmp(sigbuf, 1);
}

/*
 * ****TIPOUT   TIPOUT****
 */
tipout()
{
	char buf[BUFSIZ];
	register char *cp;
	register int cnt;
	extern int errno;
	int omask;

	signal(SIGINT, SIG_IGN);
	signal(SIGQUIT, SIG_IGN);
	signal(SIGEMT, intEMT);		/* attention from TIPIN */
	signal(SIGTERM, intTERM);	/* time to go signal */
	signal(SIGIOT, intIOT);		/* scripting going on signal */
	signal(SIGHUP, intTERM);	/* for dial-ups */
	signal(SIGSYS, intSYS);		/* beautify toggle */
	(void) setjmp(sigbuf);
	for (omask = 0;; sigsetmask(omask)) {
		cnt = read(FD, buf, BUFSIZ);
		if (cnt <= 0) {
			/* lost carrier */
			if (cnt < 0 && errno == EIO) {
				sigblock(sigmask(SIGTERM));
				intTERM();
				/*NOTREACHED*/
			}
			continue;
		}
#define	ALLSIGS	sigmask(SIGEMT)|sigmask(SIGTERM)|sigmask(SIGIOT)|sigmask(SIGSYS)
		omask = sigblock(ALLSIGS);
		for (cp = buf; cp < buf + cnt; cp++)
			*cp &= 0177;
		write(1, buf, cnt);
		if (boolean(value(SCRIPT)) && fscript != NULL) {
			if (!boolean(value(BEAUTIFY))) {
				fwrite(buf, 1, cnt, fscript);
				continue;
			}
			for (cp = buf; cp < buf + cnt; cp++)
				if ((*cp >= ' ' && *cp <= '~') ||
				    any(*cp, value(EXCEPTIONS)))
					putc(*cp, fscript);
		}
	}
}
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[] = "@(#)tipout.c 5.2 (Berkeley) %G%";
c9686c12 KB	20	#endif /* not lint */
05862919	21
eed8c72e BJ	22	#include "tip.h"
	23	/*
	24	* tip
	25	*
	26	* lower fork of tip -- handles passive side
	27	* reading from the remote host
	28	*/
	29
05862919	30	static jmp_buf sigbuf;
6b46907f	31
eed8c72e BJ	32	/*
	33	* TIPOUT wait state routine --
	34	* sent by TIPIN when it wants to posses the remote host
	35	*/
	36	intIOT()
	37	{
05862919	38
eed8c72e BJ	39	write(repdes[1],&ccc,1);
eed8c72e BJ	40	read(fildes[0], &ccc,1);
05862919	41	longjmp(sigbuf, 1);
eed8c72e BJ	42	}
	43
	44	/*
	45	* Scripting command interpreter --
	46	* accepts script file name over the pipe and acts accordingly
	47	*/
	48	intEMT()
	49	{
	50	char c, line[256];
	51	register char *pline = line;
	52	char reply;
	53
eed8c72e	54	read(fildes[0], &c, 1);
3f48242d	55	while (c != '\n') {
eed8c72e BJ	56	*pline++ = c;
	57	read(fildes[0], &c, 1);
	58	}
	59	*pline = '\0';
	60	if (boolean(value(SCRIPT)) && fscript != NULL)
	61	fclose(fscript);
	62	if (pline == line) {
	63	boolean(value(SCRIPT)) = FALSE;
	64	reply = 'y';
	65	} else {
	66	if ((fscript = fopen(line, "a")) == NULL)
	67	reply = 'n';
	68	else {
	69	reply = 'y';
	70	boolean(value(SCRIPT)) = TRUE;
	71	}
	72	}
	73	write(repdes[1], &reply, 1);
05862919	74	longjmp(sigbuf, 1);
eed8c72e BJ	75	}
	76
	77	intTERM()
	78	{
05862919	79
eed8c72e BJ	80	if (boolean(value(SCRIPT)) && fscript != NULL)
	81	fclose(fscript);
	82	exit(0);
	83	}
	84
	85	intSYS()
	86	{
05862919	87
eed8c72e	88	boolean(value(BEAUTIFY)) = !boolean(value(BEAUTIFY));
05862919	89	longjmp(sigbuf, 1);
eed8c72e BJ	90	}
	91
	92	/*
	93	* **TIPOUT TIPOUT**
	94	*/
	95	tipout()
	96	{
c731dacc BS	97	char buf[BUFSIZ];
	98	register char *cp;
	99	register int cnt;
e2326c44	100	extern int errno;
05862919	101	int omask;
c731dacc	102
eed8c72e BJ	103	signal(SIGINT, SIG_IGN);
	104	signal(SIGQUIT, SIG_IGN);
	105	signal(SIGEMT, intEMT); /* attention from TIPIN */
	106	signal(SIGTERM, intTERM); /* time to go signal */
	107	signal(SIGIOT, intIOT); /* scripting going on signal */
	108	signal(SIGHUP, intTERM); /* for dial-ups */
	109	signal(SIGSYS, intSYS); /* beautify toggle */
05862919 SL	110	(void) setjmp(sigbuf);
	111	for (omask = 0;; sigsetmask(omask)) {
	112	cnt = read(FD, buf, BUFSIZ);
e2326c44 SL	113	if (cnt <= 0) {
	114	/* lost carrier */
	115	if (cnt < 0 && errno == EIO) {
1722c749	116	sigblock(sigmask(SIGTERM));
e2326c44 SL	117	intTERM();
	118	/NOTREACHED/
	119	}
	120	continue;
	121	}
1722c749	122	#define ALLSIGS sigmask(SIGEMT)\|sigmask(SIGTERM)\|sigmask(SIGIOT)\|sigmask(SIGSYS)
05862919	123	omask = sigblock(ALLSIGS);
c731dacc BS	124	for (cp = buf; cp < buf + cnt; cp++)
	125	*cp &= 0177;
	126	write(1, buf, cnt);
eed8c72e	127	if (boolean(value(SCRIPT)) && fscript != NULL) {
c731dacc	128	if (!boolean(value(BEAUTIFY))) {
3463e9c6	129	fwrite(buf, 1, cnt, fscript);
c731dacc BS	130	continue;
c731dacc BS	131	}
05862919 SL	132	for (cp = buf; cp < buf + cnt; cp++)
	133	if ((cp >= ' ' && cp <= '~') \|\|
	134	any(*cp, value(EXCEPTIONS)))
	135	putc(*cp, fscript);
eed8c72e BJ	136	}
	137	}
	138	}