#! /bin/sh

#
# Script to give the appropriate compiler flags and linker flags
# to use when building code that uses libpcap.
#
# These variables come from the configure script, so includedir and
# libdir may be defined in terms of prefix and exec_prefix, so the
# latter must be defined as well.
#
prefix="/usr"
exec_prefix="${prefix}"
includedir="${prefix}/include"
LIBS="-libverbs   -ldbus-1  "
LIBS_STATIC="-libverbs -lbnxt_re-rdmav34 -lcxgb4-rdmav34 -lefa -lerdma-rdmav34 -lhns-rdmav34 -lirdma-rdmav34 -lmana -lmlx4 -lmlx5 -lmthca-rdmav34 -locrdma-rdmav34 -lqedr-rdmav34 -lvmw_pvrdma-rdmav34 -lhfi1verbs-rdmav34 -lipathverbs-rdmav34 -lrxe-rdmav34 -lsiw-rdmav34 -libverbs -lpthread -lnl-route-3 -lnl-3 -lpthread   -ldbus-1 -lsystemd  "
VERSION="1.10.4"

static=0
static_pcap_only=0
show_cflags=0
show_libs=0
show_additional_libs=0
while [ "$#" != 0 ]
do
	case "$1" in

	--static)
		static=1
		;;

	--static-pcap-only)
		static_pcap_only=1
		;;

	--cflags)
		show_cflags=1
		;;

	--libs)
		show_libs=1
		;;

	--additional-libs)
		show_additional_libs=1
		;;

	-h|--help)
		echo "Usage: pcap-config [ --help ] [--version] [ --static | --static-pcap-only ] [ --libs | --additional-libs ]"
		exit 0
		;;

	--version)
		echo "$VERSION"
		exit 0
		;;

	*)
		echo "pcap-config: Invalid command-line option $1 specified" 1>&2
		echo "Usage: pcap-config [ --help ] [ --static | --static-pcap-only ] [ --libs | --additional-libs ]" 1>&2
		exit 1
		;;
	esac
	shift
done

if [ "$static" = 1 ]
then
	#
	# Include LIBS_STATIC so that the flags include libraries
	# containing routines that libpcap uses, and libraries
	# containing routines those libraries use, etc., so that a
	# completely statically linked program - i.e., linked only with
	# static libraries - will be linked with all necessary
	# libraries.
	#
	if [ "$show_cflags" = 1 -a "$show_libs" = 1 ]
	then
		echo "-I$includedir -lpcap $LIBS_STATIC"
	elif [ "$show_cflags" = 1 -a "$show_additional_libs" = 1 ]
	then
		echo "-I$includedir $LIBS_STATIC"
	elif [ "$show_cflags" = 1 ]
	then
		echo "-I$includedir"
	elif [ "$show_libs" = 1 ]
	then
		echo "-lpcap $LIBS_STATIC"
	elif [ "$show_additional_libs" = 1 ]
	then
		echo "$LIBS_STATIC"
	fi
elif [ "$static_pcap_only" = 1 ]
then
	#
	# Include LIBS so that the flags include libraries
	# containing routines that libpcap uses, but not the libraries
	# on which libpcap depends, so that an otherwise
	# dynamically-linked program, linked statically only with
	# libpcap - i.e., linked with a static libpcap and dynamic
	# versions of other libraries - will be linked with all
	# necessary libraries.
	#
	if [ "$show_cflags" = 1 -a "$show_libs" = 1 ]
	then
		echo "-I$includedir -lpcap $LIBS"
	elif [ "$show_cflags" = 1 -a "$show_additional_libs" = 1 ]
	then
		echo "-I$includedir $LIBS"
	elif [ "$show_cflags" = 1 ]
	then
		echo "-I$includedir"
	elif [ "$show_libs" = 1 ]
	then
		echo "-lpcap $LIBS"
	elif [ "$show_additional_libs" = 1 ]
	then
		echo "$LIBS"
	fi
else
	#
	# Don't included LIBS or LIBS_STATIC, for building a program
	# with a dynamic libpcap; libpcap, being a dynamic library, will
	# cause all of its dynamic-library dependencies to be pulled in
	# at run time.
	#
	if [ "$show_cflags" = 1 -a "$show_libs" = 1 ]
	then
		echo "-I$includedir -lpcap"
	elif [ "$show_cflags" = 1 -a "$show_additional_libs" = 1 ]
	then
		echo "-I$includedir"
	elif [ "$show_cflags" = 1 ]
	then
		echo "-I$includedir"
	elif [ "$show_libs" = 1 ]
	then
		echo "-lpcap"
	fi
fi