gentoo-overlay/net-analyzer/tcpdump/tcpdump-3.9.8-r1.ebuild

# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-analyzer/tcpdump/tcpdump-3.9.8-r1.ebuild,v 1.9 2012/06/12 03:32:07 zmedico Exp $

inherit flag-o-matic toolchain-funcs eutils user

DESCRIPTION="A Tool for network monitoring and data acquisition"
HOMEPAGE="http://www.tcpdump.org/"
SRC_URI="http://www.tcpdump.org/release/${P}.tar.gz
	http://www.jp.tcpdump.org/release/${P}.tar.gz"

LICENSE="BSD"
SLOT="0"
KEYWORDS="alpha amd64 arm hppa ia64 ~mips ~ppc ~ppc64 s390 sh sparc x86 ~x86-fbsd"
IUSE="chroot ssl ipv6 samba"

DEPEND="net-libs/libpcap
	ssl? ( >=dev-libs/openssl-0.9.6m )"
RDEPEND="${DEPEND}"

group_user_check() {
	einfo "Checking for tcpdump group ..."
	enewgroup tcpdump
	einfo "Checking for tcpdump user ..."
	enewuser tcpdump -1 -1 -1 tcpdump
}

pkg_setup() {
	if use samba ; then
		ewarn
		ewarn "CAUTION !!! CAUTION !!! CAUTION"
		ewarn
		ewarn "You're about to compile tcpdump with samba printing support"
		ewarn "Upstream tags it as 'possibly-buggy SMB printer'"
		ewarn "So think twice whether this is fine with you"
		ewarn
		ewarn "CAUTION !!! CAUTION !!! CAUTION"
		ewarn
		ewarn "(Giving you 10 secs to think about it)"
		ewarn
		ebeep 5
		epause 5
	fi
	group_user_check
}

src_compile() {
	# tcpdump needs some optymalization. see bug #108391
	( ! is-flag -O? || is-flag -O0 ) && append-flags -O

	replace-flags -O[3-9] -O2
	filter-flags -finline-functions

	# Fix wrt bug #48747
	if [[ $(gcc-major-version) -gt 3 ]] || \
		[[ $(gcc-major-version) -eq 3 && $(gcc-minor-version) -ge 4 ]]
	then
		filter-flags -funit-at-a-time
		append-flags -fno-unit-at-a-time
	fi

	local myconf
	if ! use ssl ; then
		myconf="--without-crypto"
	fi

	if use chroot; then
		myconf="${myconf} --with-chroot=/var/lib/tcpdump"
	fi

	econf --with-user=tcpdump \
		$(use_enable ipv6) \
		$(use_enable samba smb) \
		${myconf} || die "configure failed"

	make CCOPT="$CFLAGS" || die "make failed"
}

pkg_preinst() {
	group_user_check
}

src_install() {
	dosbin tcpdump
	doman tcpdump.1
	dodoc *.awk
	dodoc README FILES VERSION CHANGES CREDITS TODO

	keepdir /var/lib/tcpdump
	fperms 700 /var/lib/tcpdump
	fowners tcpdump:tcpdump /var/lib/tcpdump
}