#!/bin/sh

MAKEDEPS="linux-headers libpcap"
DEPS="musl"

PKG_VER=2.4.9
SOURCE=https://github.com/paulusmack/ppp/archive/ppp-$PKG_VER.tar.gz

ADDITIONAL="
0011-build-sys-don-t-put-connect-errors-log-to-etc-ppp.patch
fix-paths.patch
fix-pppd-magic.h.patch
musl-fix-headers.patch
pppd.initd

"

DESC="A daemon which implements the PPP protocol for dial-up networking"

prepare () {
    apply_patches
    # bug about missing sys/cdefs.h
    find ./ -name "*.c" -o -name "*.h" | xargs sed -i "s/__BEGIN_DECLS/#ifdef __cplusplus\nextern \"C\" {\n#endif/g"
    find ./ -name "*.c" -o -name "*.h" | xargs sed -i "s/__END_DECLS/#ifdef __cplusplus\n}\n#endif/g"
    find ./ -name "*.c" -o -name "*.h" | xargs sed -i "s,#include <sys/cdefs.h>,,g"
}

build () {
    # fix CFLAGS
	# -D_GNU_SOURCE is needed for IPv6 to work apparently
	export CFLAGS="$CFLAGS -D_GNU_SOURCE"
	sed -i "s:-O2 -pipe -Wall -g:${CFLAGS}:" pppd/Makefile.linux
	sed -i "s:-g -O2:${CFLAGS}:" pppd/plugins/Makefile.linux
	sed -i "s:-O2:${CFLAGS}:" pppstats/Makefile.linux
	sed -i "s:-O2 -g -pipe:${CFLAGS}:" chat/Makefile.linux
	sed -i "s:-O:${CFLAGS}:" pppdump/Makefile.linux
	# enable active filter
	sed -i "s:^#FILTER=y:FILTER=y:" pppd/Makefile.linux
	# enable ipv6 support
	sed -i "s:^#HAVE_INET6=y:HAVE_INET6=y:" pppd/Makefile.linux
	# Enable Microsoft proprietary Callback Control Protocol
	sed -i "s:^#CBCP=y:CBCP=y:" pppd/Makefile.linux
	sed -i "s:^#CBCP=y:CBCP=y:" pppd/Makefile.linux
	sed -i "s:^#USE_CRYPT=y:USE_CRYPT=y:" pppd/Makefile.linux
	./configure \
		--prefix=/usr \
		--localstatedir=/var
	make COPTS="$CFLAGS"

}

package () {
    make INSTROOT=$PKG_DEST install
	install -Dm644 include/net/ppp_defs.h \
		$PKG_DEST/usr/include/net/ppp_defs.h
	install -D -m755 ip-up $PKG_DEST/etc/ppp/ip-up
	install -D -m755 ip-down $PKG_DEST/etc/ppp/ip-down
	install -D -m755 pppd.initd $PKG_DEST/etc/init.d/pppd
	install -D -m644 etc.ppp/options $PKG_DEST/etc/ppp/options
	install -D -m600 etc.ppp/pap-secrets $PKG_DEST/etc/ppp/pap-secrets
	install -D -m600 etc.ppp/chap-secrets $PKG_DEST/etc/ppp/chap-secrets

	# busybox ifup/ifdown needs pon/poff
	install -D -m644 scripts/pon.1 $PKG_DEST/usr/share/man/man1/pon.1
	install -D -m755 scripts/pon $PKG_DEST/usr/bin/pon
	install -D -m755 scripts/poff $PKG_DEST/usr/bin/poff

	install -d $PKG_DEST/usr/share/doc/ppp
	for i in scripts/*; do
		case $i in
		pon|poff|*.1) continue;
		esac
		if [ -f "$i" ]; then
			cp $i $PKG_DEST/usr/share/doc/ppp/
		fi
	done
	install -d $PKG_DEST/etc/ppp/peers
}