From 71c7cbab2b50436db940721a10d6ea1ca5d75f89 Mon Sep 17 00:00:00 2001
From: "C. McEnroe" <june@causal.agency>
Date: Tue, 22 Dec 2020 17:37:23 -0500
Subject: Squashed 'bin/dash/' content from commit a45870f

git-subtree-dir: bin/dash
git-subtree-split: a45870f71f42be6bf3c8eada04debd1008f9dc3e
---
 src/mkbuiltins | 120 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 src/mkbuiltins

(limited to 'src/mkbuiltins')

diff --git a/src/mkbuiltins b/src/mkbuiltins
new file mode 100644
index 00000000..f1f25932
--- /dev/null
+++ b/src/mkbuiltins
@@ -0,0 +1,120 @@
+#!/bin/sh -
+#	$NetBSD: mkbuiltins,v 1.17 2002/11/24 22:35:41 christos Exp $
+#
+# Copyright (c) 1991, 1993
+#	The Regents of the University of California.  All rights reserved.
+# Copyright (c) 1997-2005
+#	Herbert Xu <herbert@gondor.apana.org.au>.  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.
+#
+#	@(#)mkbuiltins	8.2 (Berkeley) 5/4/95
+
+tempfile=mktemp
+if ! type tempfile > /dev/null 2>&1 && ! type mktemp > /dev/null 2>&1; then
+	_my_tempfile()
+	{
+		local index=0
+		while test -f "${TMPDIR:-/tmp}/builtin.$$.$index"; do
+			index=`expr $index + 1`
+		done
+
+		touch "${TMPDIR:-/tmp}/builtin.$$.$index"
+		echo "${TMPDIR:-/tmp}/builtin.$$.$index"
+	}
+
+	tempfile="_my_tempfile"
+elif ! type tempfile > /dev/null 2>&1; then
+	tempfile="mktemp ${TMPDIR:-/tmp}/builtin.XXXXXX"
+fi
+
+trap 'rm -f $temp $temp2' EXIT
+temp=$($tempfile)
+temp2=$($tempfile)
+
+builtins=$1
+
+exec > builtins.c
+cat <<\!
+/*
+ * This file was generated by the mkbuiltins program.
+ */
+
+#include "shell.h"
+#include "builtins.h"
+
+!
+< $builtins sed '/^#/d; /^ *$/d' > $temp
+awk '{	printf "int %s(int, char **);\n", $1}' $temp
+echo '
+const struct builtincmd builtincmd[] = {'
+awk '{	for (i = 2 ; i <= NF ; i++) {
+		line = $i "\t" $1
+		if ($i ~ /^-/)
+			line = $(++i) "\t" line
+		print line
+	}}' $temp | LC_ALL= LC_COLLATE=C sort -k 1,1 | tee $temp2 | awk '{
+		opt = ""
+		if (NF > 2) {
+			opt = substr($2, 2)
+			$2 = $3
+		}
+		mask = 0
+		cmd = $2
+		if (opt ~ /n/) { cmd = "NULL" }
+		if (opt ~ /s/) { mask += 1 }
+		if (opt ~ /[su]/) { mask += 2 }
+		if (opt ~ /a/) { mask += 4 }
+		printf "\t{ \"%s\", %s, %d },\n", $1, cmd, mask
+	}'
+echo '};'
+
+exec > builtins.h
+cat <<\!
+/*
+ * This file was generated by the mkbuiltins program.
+ */
+
+!
+sed 's/	-[a-z]*//' $temp2 | nl -ba -v0 |
+	LC_ALL= LC_COLLATE=C sort -u -k 3,3 |
+	tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ |
+	awk '{	printf "#define %s (builtincmd + %d)\n", $3, $1}'
+printf '\n#define NUMBUILTINS %d\n' $(wc -l < $temp2)
+echo '
+#define BUILTIN_SPECIAL 0x1
+#define BUILTIN_REGULAR 0x2
+#define BUILTIN_ASSIGN 0x4
+
+struct builtincmd {
+	const char *name;
+	int (*builtin)(int, char **);
+	unsigned flags;
+};
+
+extern const struct builtincmd builtincmd[];'
-- 
cgit 1.4.1