lib/make_zipconf.sh

#!/bin/sh

#  make_zipconf.sh: create platform specific include file zipconf.h
#  Copyright (C) 1999-2008 Dieter Baron and Thomas Klausner
#
#  This file is part of libzip, a library to manipulate ZIP archives.
#  The authors can be contacted at <libzip@nih.at>
#
#  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. The names of the authors may not be used to endorse or promote
#     products derived from this software without specific prior
#     written permission.
# 
#  THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.


set -e

define_type()
{
    short=$1
    long=$2
    bytes=$3
    infile="$4"
    outfile="$5"

    bits=`expr $bytes '*' 8`
    type="${short}int${bits}_t"
    TYPE=`echo $type | tr a-z A-Z`
    if grep -q "define HAVE_${TYPE}" "$infile"
    then
	echo "typedef $type zip_$type;" >> "$outfile"
    else
	if [ "$bytes" -eq 1 ]
	then
	    if [ -z "$long" ]
	    then
		long='signed'
	    fi
	    echo "typedef $long char $type;" >> $outfile
	else
	    ctype=`sed -n "s/.define SIZEOF_\([A-Z_]*\) $bytes/\1/p" "$infile" \
		| head -1 | tr A-Z_ 'a-z '`
	    if [ -z "$ctype" ]
	    then
		echo "$0: no $bits bit type found" >&2
		exit 1
	    fi
	    echo "typedef $long $ctype $type;" >> $outfile
	fi
    fi
}


if [ "$#" -ne 2 ]
then
    echo "Usage: $0 config_h_file out_file" >&2
    echo "       e.g. $0 ../config.h zip_err_str.c" >&2
    exit 1
fi

if [ "$1" = "$2" ]
then
    echo "$0: error: output file = input file" >&2
    exit 1
fi

cat <<EOF > "$2.$$"
#ifndef _HAD_ZIPCONF_H
#define _HAD_ZIPCONF_H

/*
   zipconf.h -- platform specific include file

   This file was generated automatically by $0
   based on $1.
 */

EOF

if grep -q 'define HAVE_INTTYPES_H' "$1"
then
    echo '#include <inttypes.h>' >> "$2.$$"
    echo >> "$2.$$"
fi

for size in 1 2 4 8
do
    define_type '' '' $size "$1" "$2.$$"
    define_type u unsigned $size "$1" "$2.$$"
done

echo >> "$2.$$"
echo '#endif /* zipconf.h */' >> "$2.$$"

mv "$2.$$" "$2"