#!/bin/sh

name="hdw-sniff"

#defaults
prefix=/usr
apidir=""

usage()	{
	echo "usage $0 <options>"
	echo "options:"
	echo "--prefix=PREFIX	specify install prefix"
        echo "--with-api=DIR	specify api dir"
	echo
	}

while [ "$1" ]; do
	case "`echo $1 | awk -F= '{ print $1 }'`" in
		--prefix)	prefix=`echo $1 | awk -F= '{ print $2 }'`; shift;;
		--help)		usage; shift 1;;
		--with-api)	apidir=`echo $1 | awk -F= '{ print $2 }'`; shift;;
	esac
done

echo "checking for api stuff ..."
api_dir="0"
if [ -z "$apidir" ]; then
	for i in ../api ../../api; do
		if [ -f $i/CHANGELOG ]; then
			api_dir=$i
		fi
	done
else
	if [ -f $apidir/CHANGELOG ]; then
		api_dir=$apidir
	fi
fi
if [ "$api_dir" = "0" ]; then
	echo "api files not found ..."
	echo "WARNING: your build will fail."
	echo "please get the api files first (see README file)."
	api_dir="./"
fi

GENLIBS="-lm -lncurses -lpcap"
GENAPI="network.o event.o list.o display.o input.o"
SRC="main.c parse.c"

echo "creating Makefile"

cat > Makefile << EOF
# $name Makefile, created `date`

INCLUDEDIR = /usr/include
CFLAGS = -DDEBUG -O3 -Wall
LIBS = $GENLIBS

OBJS = $GENAPI
OBJS2 = $name

all: $name

links:
EOF

for i in $GENAPI; do
	foo="`echo $i | sed 's/\.o//g'`"
	cat >> Makefile << EOF
	ln -sf $api_dir/$foo/${foo}.{c,h} .
EOF
done

for i in $name; do
cat >> Makefile << EOF

$i: links \$(OBJS)
	\$(CC) \$(CFLAGS) -o \$@ \$(OBJS) $SRC \$(LIBS)

EOF
done

cat >> Makefile << EOF
clean:
	rm -f \$(OBJS) \$(OBJS2)

remake: clean all

install:
	mkdir -p $prefix/bin
	cp $name $prefix/bin
EOF

echo "done"