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-rw-r--r--bin/1sh/show.c410
1 files changed, 0 insertions, 410 deletions
diff --git a/bin/1sh/show.c b/bin/1sh/show.c
deleted file mode 100644
index e8a55886..00000000
--- a/bin/1sh/show.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * 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. 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.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)show.c	8.3 (Berkeley) 5/4/95";
-#endif
-#endif /* not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: releng/12.0/bin/sh/show.c 326025 2017-11-20 19:49:47Z pfg $");
-
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <errno.h>
-
-#include "shell.h"
-#include "parser.h"
-#include "nodes.h"
-#include "mystring.h"
-#include "show.h"
-
-
-#ifdef DEBUG
-static void shtree(union node *, int, char *, FILE*);
-static void shcmd(union node *, FILE *);
-static void sharg(union node *, FILE *);
-static void indent(int, char *, FILE *);
-static void trstring(char *);
-
-
-void
-showtree(union node *n)
-{
-	trputs("showtree called\n");
-	shtree(n, 1, NULL, stdout);
-}
-
-
-static void
-shtree(union node *n, int ind, char *pfx, FILE *fp)
-{
-	struct nodelist *lp;
-	char *s;
-
-	if (n == NULL)
-		return;
-
-	indent(ind, pfx, fp);
-	switch(n->type) {
-	case NSEMI:
-		s = "; ";
-		goto binop;
-	case NAND:
-		s = " && ";
-		goto binop;
-	case NOR:
-		s = " || ";
-binop:
-		shtree(n->nbinary.ch1, ind, NULL, fp);
-	   /*    if (ind < 0) */
-			fputs(s, fp);
-		shtree(n->nbinary.ch2, ind, NULL, fp);
-		break;
-	case NCMD:
-		shcmd(n, fp);
-		if (ind >= 0)
-			putc('\n', fp);
-		break;
-	case NPIPE:
-		for (lp = n->npipe.cmdlist ; lp ; lp = lp->next) {
-			shcmd(lp->n, fp);
-			if (lp->next)
-				fputs(" | ", fp);
-		}
-		if (n->npipe.backgnd)
-			fputs(" &", fp);
-		if (ind >= 0)
-			putc('\n', fp);
-		break;
-	default:
-		fprintf(fp, "<node type %d>", n->type);
-		if (ind >= 0)
-			putc('\n', fp);
-		break;
-	}
-}
-
-
-
-static void
-shcmd(union node *cmd, FILE *fp)
-{
-	union node *np;
-	int first;
-	char *s;
-	int dftfd;
-
-	first = 1;
-	for (np = cmd->ncmd.args ; np ; np = np->narg.next) {
-		if (! first)
-			putchar(' ');
-		sharg(np, fp);
-		first = 0;
-	}
-	for (np = cmd->ncmd.redirect ; np ; np = np->nfile.next) {
-		if (! first)
-			putchar(' ');
-		switch (np->nfile.type) {
-			case NTO:	s = ">";  dftfd = 1; break;
-			case NAPPEND:	s = ">>"; dftfd = 1; break;
-			case NTOFD:	s = ">&"; dftfd = 1; break;
-			case NCLOBBER:	s = ">|"; dftfd = 1; break;
-			case NFROM:	s = "<";  dftfd = 0; break;
-			case NFROMTO:	s = "<>"; dftfd = 0; break;
-			case NFROMFD:	s = "<&"; dftfd = 0; break;
-			case NHERE:	s = "<<"; dftfd = 0; break;
-			case NXHERE:	s = "<<"; dftfd = 0; break;
-			default:  	s = "*error*"; dftfd = 0; break;
-		}
-		if (np->nfile.fd != dftfd)
-			fprintf(fp, "%d", np->nfile.fd);
-		fputs(s, fp);
-		if (np->nfile.type == NTOFD || np->nfile.type == NFROMFD) {
-			if (np->ndup.dupfd >= 0)
-				fprintf(fp, "%d", np->ndup.dupfd);
-			else
-				fprintf(fp, "-");
-		} else if (np->nfile.type == NHERE) {
-				fprintf(fp, "HERE");
-		} else if (np->nfile.type == NXHERE) {
-				fprintf(fp, "XHERE");
-		} else {
-			sharg(np->nfile.fname, fp);
-		}
-		first = 0;
-	}
-}
-
-
-
-static void
-sharg(union node *arg, FILE *fp)
-{
-	char *p;
-	struct nodelist *bqlist;
-	int subtype;
-
-	if (arg->type != NARG) {
-		printf("<node type %d>\n", arg->type);
-		fflush(stdout);
-		abort();
-	}
-	bqlist = arg->narg.backquote;
-	for (p = arg->narg.text ; *p ; p++) {
-		switch (*p) {
-		case CTLESC:
-			putc(*++p, fp);
-			break;
-		case CTLVAR:
-			putc('$', fp);
-			putc('{', fp);
-			subtype = *++p;
-			if (subtype == VSLENGTH)
-				putc('#', fp);
-
-			while (*p != '=')
-				putc(*p++, fp);
-
-			if (subtype & VSNUL)
-				putc(':', fp);
-
-			switch (subtype & VSTYPE) {
-			case VSNORMAL:
-				putc('}', fp);
-				break;
-			case VSMINUS:
-				putc('-', fp);
-				break;
-			case VSPLUS:
-				putc('+', fp);
-				break;
-			case VSQUESTION:
-				putc('?', fp);
-				break;
-			case VSASSIGN:
-				putc('=', fp);
-				break;
-			case VSTRIMLEFT:
-				putc('#', fp);
-				break;
-			case VSTRIMLEFTMAX:
-				putc('#', fp);
-				putc('#', fp);
-				break;
-			case VSTRIMRIGHT:
-				putc('%', fp);
-				break;
-			case VSTRIMRIGHTMAX:
-				putc('%', fp);
-				putc('%', fp);
-				break;
-			case VSLENGTH:
-				break;
-			default:
-				printf("<subtype %d>", subtype);
-			}
-			break;
-		case CTLENDVAR:
-		     putc('}', fp);
-		     break;
-		case CTLBACKQ:
-		case CTLBACKQ|CTLQUOTE:
-			putc('$', fp);
-			putc('(', fp);
-			shtree(bqlist->n, -1, NULL, fp);
-			putc(')', fp);
-			break;
-		default:
-			putc(*p, fp);
-			break;
-		}
-	}
-}
-
-
-static void
-indent(int amount, char *pfx, FILE *fp)
-{
-	int i;
-
-	for (i = 0 ; i < amount ; i++) {
-		if (pfx && i == amount - 1)
-			fputs(pfx, fp);
-		putc('\t', fp);
-	}
-}
-
-
-/*
- * Debugging stuff.
- */
-
-
-FILE *tracefile;
-
-#if DEBUG >= 2
-int debug = 1;
-#else
-int debug = 0;
-#endif
-
-
-void
-trputc(int c)
-{
-	if (tracefile == NULL)
-		return;
-	putc(c, tracefile);
-	if (c == '\n')
-		fflush(tracefile);
-}
-
-
-void
-sh_trace(const char *fmt, ...)
-{
-	va_list va;
-	va_start(va, fmt);
-	if (tracefile != NULL) {
-		(void) vfprintf(tracefile, fmt, va);
-		if (strchr(fmt, '\n'))
-			(void) fflush(tracefile);
-	}
-	va_end(va);
-}
-
-
-void
-trputs(const char *s)
-{
-	if (tracefile == NULL)
-		return;
-	fputs(s, tracefile);
-	if (strchr(s, '\n'))
-		fflush(tracefile);
-}
-
-
-static void
-trstring(char *s)
-{
-	char *p;
-	char c;
-
-	if (tracefile == NULL)
-		return;
-	putc('"', tracefile);
-	for (p = s ; *p ; p++) {
-		switch (*p) {
-		case '\n':  c = 'n';  goto backslash;
-		case '\t':  c = 't';  goto backslash;
-		case '\r':  c = 'r';  goto backslash;
-		case '"':  c = '"';  goto backslash;
-		case '\\':  c = '\\';  goto backslash;
-		case CTLESC:  c = 'e';  goto backslash;
-		case CTLVAR:  c = 'v';  goto backslash;
-		case CTLVAR+CTLQUOTE:  c = 'V';  goto backslash;
-		case CTLBACKQ:  c = 'q';  goto backslash;
-		case CTLBACKQ+CTLQUOTE:  c = 'Q';  goto backslash;
-backslash:	  putc('\\', tracefile);
-			putc(c, tracefile);
-			break;
-		default:
-			if (*p >= ' ' && *p <= '~')
-				putc(*p, tracefile);
-			else {
-				putc('\\', tracefile);
-				putc(*p >> 6 & 03, tracefile);
-				putc(*p >> 3 & 07, tracefile);
-				putc(*p & 07, tracefile);
-			}
-			break;
-		}
-	}
-	putc('"', tracefile);
-}
-
-
-void
-trargs(char **ap)
-{
-	if (tracefile == NULL)
-		return;
-	while (*ap) {
-		trstring(*ap++);
-		if (*ap)
-			putc(' ', tracefile);
-		else
-			putc('\n', tracefile);
-	}
-	fflush(tracefile);
-}
-
-
-void
-opentrace(void)
-{
-	char s[100];
-	int flags;
-
-	if (!debug)
-		return;
-#ifdef not_this_way
-	{
-		char *p;
-		if ((p = getenv("HOME")) == NULL) {
-			if (geteuid() == 0)
-				p = "/";
-			else
-				p = "/tmp";
-		}
-		strcpy(s, p);
-		strcat(s, "/trace");
-	}
-#else
-	strcpy(s, "./trace");
-#endif /* not_this_way */
-	if ((tracefile = fopen(s, "a")) == NULL) {
-		fprintf(stderr, "Can't open %s: %s\n", s, strerror(errno));
-		return;
-	}
-	if ((flags = fcntl(fileno(tracefile), F_GETFL, 0)) >= 0)
-		fcntl(fileno(tracefile), F_SETFL, flags | O_APPEND);
-	fputs("\nTracing started.\n", tracefile);
-	fflush(tracefile);
-}
-#endif /* DEBUG */