#! /bin/sh

#
# The first argument is the output filename.
#

outfile="$1"
shift

#
# The second argument is the directory in which the source files live.
#
srcdir="$1"
shift

#
# All subsequent arguments are the files to scan.
#
rm -f ${outfile}-tmp
echo '/* Do not modify this file.  */' >${outfile}-tmp
echo '/* It is created automatically by the Makefile.  */'>>${outfile}-tmp
echo '#include "register.h"' >>${outfile}-tmp

#
# Build code to call all the protocol registration routines.
#
echo 'void register_all_protocols(void) {' >>${outfile}-tmp
for f in "$@"
do
	if [ -f $f ]
	then
		srcfile=$f
	else
		srcfile=$srcdir/$f
	fi
	grep '^proto_register_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
done | sed -e 's/^.*://' -e 's/^\([a-z_0-9A-Z]*\).*/  {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
for f in "$@"
do
	if [ -f $f ]
	then
		srcfile=$f
	else
		srcfile=$srcdir/$f
	fi
	grep '^void proto_register_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
done | sed -e 's/^.*://' -e 's/^void \([a-z_0-9A-Z]*\).*/  {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
echo '}' >>${outfile}-tmp

#
# Build code to call all the protocol handoff registration routines.
#
echo 'void register_all_protocol_handoffs(void) {' >>${outfile}-tmp
for f in "$@"
do
	if [ -f $f ]
	then
		srcfile=$f
	else
		srcfile=$srcdir/$f
	fi
	grep '^proto_reg_handoff_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
done | sed -e 's/^.*://' -e 's/^\([a-z_0-9A-Z]*\).*/  {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
for f in "$@"
do
	if [ -f $f ]
	then
		srcfile=$f
	else
		srcfile=$srcdir/$f
	fi
	grep '^void proto_reg_handoff_[a-z_0-9A-Z]* *(' $srcfile 2>/dev/null | grep -v ';'
done | sed -e 's/^.*://' -e 's/^void \([a-z_0-9A-Z]*\).*/  {extern void \1 (void); \1 ();}/' >>${outfile}-tmp
echo '}' >>${outfile}-tmp
mv ${outfile}-tmp ${outfile}