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

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char sccsid[] = "@(#)tipout.c	5.1 (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 DF	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
05862919	7	#ifndef lint
051b1e55 DF	8	static char sccsid[] = "@(#)tipout.c 5.1 (Berkeley) %G%";
051b1e55 DF	9	#endif not lint
05862919	10
eed8c72e BJ	11	#include "tip.h"
	12	/*
	13	* tip
	14	*
	15	* lower fork of tip -- handles passive side
	16	* reading from the remote host
	17	*/
	18
05862919	19	static jmp_buf sigbuf;
6b46907f	20
eed8c72e BJ	21	/*
	22	* TIPOUT wait state routine --
	23	* sent by TIPIN when it wants to posses the remote host
	24	*/
	25	intIOT()
	26	{
05862919	27
eed8c72e BJ	28	write(repdes[1],&ccc,1);
eed8c72e BJ	29	read(fildes[0], &ccc,1);
05862919	30	longjmp(sigbuf, 1);
eed8c72e BJ	31	}
	32
	33	/*
	34	* Scripting command interpreter --
	35	* accepts script file name over the pipe and acts accordingly
	36	*/
	37	intEMT()
	38	{
	39	char c, line[256];
	40	register char *pline = line;
	41	char reply;
	42
eed8c72e	43	read(fildes[0], &c, 1);
3f48242d	44	while (c != '\n') {
eed8c72e BJ	45	*pline++ = c;
	46	read(fildes[0], &c, 1);
	47	}
	48	*pline = '\0';
	49	if (boolean(value(SCRIPT)) && fscript != NULL)
	50	fclose(fscript);
	51	if (pline == line) {
	52	boolean(value(SCRIPT)) = FALSE;
	53	reply = 'y';
	54	} else {
	55	if ((fscript = fopen(line, "a")) == NULL)
	56	reply = 'n';
	57	else {
	58	reply = 'y';
	59	boolean(value(SCRIPT)) = TRUE;
	60	}
	61	}
	62	write(repdes[1], &reply, 1);
05862919	63	longjmp(sigbuf, 1);
eed8c72e BJ	64	}
	65
	66	intTERM()
	67	{
05862919	68
eed8c72e BJ	69	if (boolean(value(SCRIPT)) && fscript != NULL)
	70	fclose(fscript);
	71	exit(0);
	72	}
	73
	74	intSYS()
	75	{
05862919	76
eed8c72e	77	boolean(value(BEAUTIFY)) = !boolean(value(BEAUTIFY));
05862919	78	longjmp(sigbuf, 1);
eed8c72e BJ	79	}
	80
	81	/*
	82	* **TIPOUT TIPOUT**
	83	*/
	84	tipout()
	85	{
c731dacc BS	86	char buf[BUFSIZ];
	87	register char *cp;
	88	register int cnt;
e2326c44	89	extern int errno;
05862919	90	int omask;
c731dacc	91
eed8c72e BJ	92	signal(SIGINT, SIG_IGN);
	93	signal(SIGQUIT, SIG_IGN);
	94	signal(SIGEMT, intEMT); /* attention from TIPIN */
	95	signal(SIGTERM, intTERM); /* time to go signal */
	96	signal(SIGIOT, intIOT); /* scripting going on signal */
	97	signal(SIGHUP, intTERM); /* for dial-ups */
	98	signal(SIGSYS, intSYS); /* beautify toggle */
05862919 SL	99	(void) setjmp(sigbuf);
	100	for (omask = 0;; sigsetmask(omask)) {
	101	cnt = read(FD, buf, BUFSIZ);
e2326c44 SL	102	if (cnt <= 0) {
	103	/* lost carrier */
	104	if (cnt < 0 && errno == EIO) {
1722c749	105	sigblock(sigmask(SIGTERM));
e2326c44 SL	106	intTERM();
	107	/NOTREACHED/
	108	}
	109	continue;
	110	}
1722c749	111	#define ALLSIGS sigmask(SIGEMT)\|sigmask(SIGTERM)\|sigmask(SIGIOT)\|sigmask(SIGSYS)
05862919	112	omask = sigblock(ALLSIGS);
c731dacc BS	113	for (cp = buf; cp < buf + cnt; cp++)
	114	*cp &= 0177;
	115	write(1, buf, cnt);
eed8c72e	116	if (boolean(value(SCRIPT)) && fscript != NULL) {
c731dacc	117	if (!boolean(value(BEAUTIFY))) {
3463e9c6	118	fwrite(buf, 1, cnt, fscript);
c731dacc BS	119	continue;
c731dacc BS	120	}
05862919 SL	121	for (cp = buf; cp < buf + cnt; cp++)
	122	if ((cp >= ' ' && cp <= '~') \|\|
	123	any(*cp, value(EXCEPTIONS)))
	124	putc(*cp, fscript);
eed8c72e BJ	125	}
	126	}
	127	}