auto import from //depot/cupcake/@135843
diff --git a/sh/mkinit.sh b/sh/mkinit.sh
new file mode 100644
index 0000000..cae27dd
--- /dev/null
+++ b/sh/mkinit.sh
@@ -0,0 +1,197 @@
+#! /bin/sh
+# $NetBSD: mkinit.sh,v 1.2 2004/06/15 23:09:54 dsl Exp $
+
+# Copyright (c) 2003 The NetBSD Foundation, Inc.
+# All rights reserved.
+#
+# This code is derived from software contributed to The NetBSD Foundation
+# by David Laight.
+#
+# 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 NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+
+srcs="$*"
+
+nl='
+'
+openparen='('
+backslash='\'
+
+includes=' "shell.h" "mystring.h" "init.h" '
+defines=
+decles=
+event_init=
+event_reset=
+event_shellproc=
+
+for src in $srcs; do
+ exec <$src
+ decnl="$nl"
+ while IFS=; read -r line; do
+ [ "$line" = x ]
+ case "$line " in
+ INIT["{ "]* ) event=init;;
+ RESET["{ "]* ) event=reset;;
+ SHELLPROC["{ "]* ) event=shellproc;;
+ INCLUDE[\ \ ]* )
+ IFS=' '
+ set -- $line
+ # ignore duplicates
+ [ "${includes}" != "${includes%* $2 }" ] && continue
+ includes="$includes$2 "
+ continue
+ ;;
+ MKINIT\ )
+ # struct declaration
+ decles="$decles$nl"
+ while
+ read -r line
+ decles="${decles}${line}${nl}"
+ [ "$line" != "};" ]
+ do
+ :
+ done
+ decnl="$nl"
+ continue
+ ;;
+ MKINIT["{ "]* )
+ # strip initialiser
+ def=${line#MKINIT}
+ comment="${def#*;}"
+ def="${def%;$comment}"
+ def="${def%%=*}"
+ def="${def% }"
+ decles="${decles}${decnl}extern${def};${comment}${nl}"
+ decnl=
+ continue
+ ;;
+ \#define[\ \ ]* )
+ IFS=' '
+ set -- $line
+ # Ignore those with arguments
+ [ "$2" = "${2##*$openparen}" ] || continue
+ # and multiline definitions
+ [ "$line" = "${line%$backslash}" ] || continue
+ defines="${defines}#undef $2${nl}${line}${nl}"
+ continue
+ ;;
+ * ) continue;;
+ esac
+ # code for events
+ ev="${nl} /* from $src: */${nl} {${nl}"
+ while
+ read -r line
+ [ "$line" != "}" ]
+ do
+ # The C program indented by an extra 6 chars using
+ # tabs then spaces. I need to compare the output :-(
+ indent=6
+ while
+ l=${line# }
+ [ "$l" != "$line" ]
+ do
+ indent=$(($indent + 8))
+ line="$l"
+ done
+ while
+ l=${line# }
+ [ "$l" != "$line" ]
+ do
+ indent=$(($indent + 1))
+ line="$l"
+ done
+ [ -z "$line" -o "$line" != "${line###}" ] && indent=0
+ while
+ [ $indent -ge 8 ]
+ do
+ ev="$ev "
+ indent="$(($indent - 8))"
+ done
+ while
+ [ $indent -gt 0 ]
+ do
+ ev="$ev "
+ indent="$(($indent - 1))"
+ done
+ ev="${ev}${line}${nl}"
+ done
+ ev="${ev} }${nl}"
+ eval event_$event=\"\$event_$event\$ev\"
+ done
+done
+
+exec >init.c.tmp
+
+echo "/*"
+echo " * This file was generated by the mkinit program."
+echo " */"
+echo
+
+IFS=' '
+for f in $includes; do
+ echo "#include $f"
+done
+
+echo
+echo
+echo
+echo "$defines"
+echo
+echo "$decles"
+echo
+echo
+echo "/*"
+echo " * Initialization code."
+echo " */"
+echo
+echo "void"
+echo "init() {"
+echo "${event_init%$nl}"
+echo "}"
+echo
+echo
+echo
+echo "/*"
+echo " * This routine is called when an error or an interrupt occurs in an"
+echo " * interactive shell and control is returned to the main command loop."
+echo " */"
+echo
+echo "void"
+echo "reset() {"
+echo "${event_reset%$nl}"
+echo "}"
+echo
+echo
+echo
+echo "/*"
+echo " * This routine is called to initialize the shell to run a shell procedure."
+echo " */"
+echo
+echo "void"
+echo "initshellproc() {"
+echo "${event_shellproc%$nl}"
+echo "}"
+
+exec >&-
+mv init.c.tmp init.c