1 files changed, 0 insertions, 383 deletions
diff --git a/release/picobsd/tinyware/ash/trap.c b/release/picobsd/tinyware/ash/trap.c
deleted file mode 100644
index dc5e1c8..0000000
--- a/release/picobsd/tinyware/ash/trap.c
+++ /dev/null
@@ -1,383 +0,0 @@
-/*	$NetBSD: trap.c,v 1.17 1997/07/04 21:02:24 christos Exp $	*/
-
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Kenneth Almquist.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)trap.c	8.5 (Berkeley) 6/5/95";
-#else
-__RCSID("$NetBSD: trap.c,v 1.17 1997/07/04 21:02:24 christos Exp $");
-#endif
-#endif /* not lint */
-
-#include <signal.h>
-#include <unistd.h>
-#include <stdlib.h>
-
-#include "shell.h"
-#include "main.h"
-#include "nodes.h"	/* for other headers */
-#include "eval.h"
-#include "jobs.h"
-#include "show.h"
-#include "options.h"
-#include "syntax.h"
-#include "output.h"
-#include "memalloc.h"
-#include "error.h"
-#include "trap.h"
-#include "mystring.h"
-
-
-/*
- * Sigmode records the current value of the signal handlers for the various
- * modes.  A value of zero means that the current handler is not known.
- * S_HARD_IGN indicates that the signal was ignored on entry to the shell,
- */
-
-#define S_DFL 1			/* default signal handling (SIG_DFL) */
-#define S_CATCH 2		/* signal is caught */
-#define S_IGN 3			/* signal is ignored (SIG_IGN) */
-#define S_HARD_IGN 4		/* signal is ignored permenantly */
-#define S_RESET 5		/* temporary - to reset a hard ignored sig */
-
-
-extern char nullstr[1];		/* null string */
-
-char *trap[NSIG+1];		/* trap handler commands */
-MKINIT char sigmode[NSIG];	/* current value of signal */
-char gotsig[NSIG];		/* indicates specified signal received */
-int pendingsigs;			/* indicates some signal received */
-
-static int getsigaction __P((int, sig_t *));
-
-/*
- * The trap builtin.
- */
-
-int
-trapcmd(argc, argv)
-	int argc;
-	char **argv;
-{
-	char *action;
-	char **ap;
-	int signo;
-
-	if (argc <= 1) {
-		for (signo = 0 ; signo <= NSIG ; signo++) {
-			if (trap[signo] != NULL)
-				out1fmt("%d: %s\n", signo, trap[signo]);
-		}
-		return 0;
-	}
-	ap = argv + 1;
-	if (is_number(*ap))
-		action = NULL;
-	else
-		action = *ap++;
-	while (*ap) {
-		if ((signo = number(*ap)) < 0 || signo > NSIG)
-			error("%s: bad trap", *ap);
-		INTOFF;
-		if (action)
-			action = savestr(action);
-		if (trap[signo])
-			ckfree(trap[signo]);
-		trap[signo] = action;
-		if (signo != 0)
-			setsignal(signo);
-		INTON;
-		ap++;
-	}
-	return 0;
-}
-
-
-
-/*
- * Clear traps on a fork.
- */
-
-void
-clear_traps() {
-	char **tp;
-
-	for (tp = trap ; tp <= &trap[NSIG] ; tp++) {
-		if (*tp && **tp) {	/* trap not NULL or SIG_IGN */
-			INTOFF;
-			ckfree(*tp);
-			*tp = NULL;
-			if (tp != &trap[0])
-				setsignal(tp - trap);
-			INTON;
-		}
-	}
-}
-
-
-
-/*
- * Set the signal handler for the specified signal.  The routine figures
- * out what it should be set to.
- */
-
-long
-setsignal(signo)
-	int signo;
-{
-	int action;
-	sig_t sigact = SIG_DFL;
-	char *t;
-
-	if ((t = trap[signo]) == NULL)
-		action = S_DFL;
-	else if (*t != '\0')
-		action = S_CATCH;
-	else
-		action = S_IGN;
-	if (rootshell && action == S_DFL) {
-		switch (signo) {
-		case SIGINT:
-			if (iflag)
-				action = S_CATCH;
-			break;
-		case SIGQUIT:
-#ifdef DEBUG
-			{
-			extern int debug;
-
-			if (debug)
-				break;
-			}
-#endif
-			/* FALLTHROUGH */
-		case SIGTERM:
-			if (iflag)
-				action = S_IGN;
-			break;
-#if JOBS
-		case SIGTSTP:
-		case SIGTTOU:
-			if (mflag)
-				action = S_IGN;
-			break;
-#endif
-		}
-	}
-
-	t = &sigmode[signo - 1];
-	if (*t == 0) {
-		/*
-		 * current setting unknown
-		 */
-		if (!getsigaction(signo, &sigact)) {
-			/*
-			 * Pretend it worked; maybe we should give a warning
-			 * here, but other shells don't. We don't alter
-			 * sigmode, so that we retry every time.
-			 */
-			return 0;
-		}
-		if (sigact == SIG_IGN) {
-			if (mflag && (signo == SIGTSTP ||
-			     signo == SIGTTIN || signo == SIGTTOU)) {
-				*t = S_IGN;	/* don't hard ignore these */
-			} else
-				*t = S_HARD_IGN;
-		} else {
-			*t = S_RESET;	/* force to be set */
-		}
-	}
-	if (*t == S_HARD_IGN || *t == action)
-		return 0;
-	switch (action) {
-		case S_DFL:	sigact = SIG_DFL;	break;
-		case S_CATCH:  	sigact = onsig;		break;
-		case S_IGN:	sigact = SIG_IGN;	break;
-	}
-	*t = action;
-	return (long)signal(signo, sigact);
-}
-
-/*
- * Return the current setting for sig w/o changing it.
- */
-static int
-getsigaction(signo, sigact)
-	int signo;
-	sig_t *sigact;
-{
-	struct sigaction sa;
-
-	if (sigaction(signo, (struct sigaction *)0, &sa) == -1)
-		return 0;
-	*sigact = (sig_t) sa.sa_handler;
-	return 1;
-}
-
-/*
- * Ignore a signal.
- */
-
-void
-ignoresig(signo)
-	int signo;
-{
-	if (sigmode[signo - 1] != S_IGN && sigmode[signo - 1] != S_HARD_IGN) {
-		signal(signo, SIG_IGN);
-	}
-	sigmode[signo - 1] = S_HARD_IGN;
-}
-
-
-#ifdef mkinit
-INCLUDE <signal.h>
-INCLUDE "trap.h"
-
-SHELLPROC {
-	char *sm;
-
-	clear_traps();
-	for (sm = sigmode ; sm < sigmode + NSIG ; sm++) {
-		if (*sm == S_IGN)
-			*sm = S_HARD_IGN;
-	}
-}
-#endif
-
-
-
-/*
- * Signal handler.
- */
-
-void
-onsig(signo)
-	int signo;
-{
-	signal(signo, onsig);
-	if (signo == SIGINT && trap[SIGINT] == NULL) {
-		onint();
-		return;
-	}
-	gotsig[signo - 1] = 1;
-	pendingsigs++;
-}
-
-
-
-/*
- * Called to execute a trap.  Perhaps we should avoid entering new trap
- * handlers while we are executing a trap handler.
- */
-
-void
-dotrap() {
-	int i;
-	int savestatus;
-
-	for (;;) {
-		for (i = 1 ; ; i++) {
-			if (gotsig[i - 1])
-				break;
-			if (i >= NSIG)
-				goto done;
-		}
-		gotsig[i - 1] = 0;
-		savestatus=exitstatus;
-		evalstring(trap[i]);
-		exitstatus=savestatus;
-	}
-done:
-	pendingsigs = 0;
-}
-
-
-
-/*
- * Controls whether the shell is interactive or not.
- */
-
-
-void
-setinteractive(on)
-	int on;
-{
-	static int is_interactive;
-
-	if (on == is_interactive)
-		return;
-	setsignal(SIGINT);
-	setsignal(SIGQUIT);
-	setsignal(SIGTERM);
-	is_interactive = on;
-}
-
-
-
-/*
- * Called to exit the shell.
- */
-
-void
-exitshell(status)
-	int status;
-{
-	struct jmploc loc1, loc2;
-	char *p;
-
-	TRACE(("exitshell(%d) pid=%d\n", status, getpid()));
-	if (setjmp(loc1.loc)) {
-		goto l1;
-	}
-	if (setjmp(loc2.loc)) {
-		goto l2;
-	}
-	handler = &loc1;
-	if ((p = trap[0]) != NULL && *p != '\0') {
-		trap[0] = NULL;
-		evalstring(p);
-	}
-l1:   handler = &loc2;			/* probably unnecessary */
-	flushall();
-#if JOBS
-	setjobctl(0);
-#endif
-l2:   _exit(status);
-}