nixpkgs/pkgs/tools/networking/dhcp/default.nix

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{ stdenv, fetchurl, nettools, iputils, iproute, makeWrapper, coreutils, gnused }:
stdenv.mkDerivation rec {
name = "dhcp-4.1-ESV-R6";
src = fetchurl {
url = http://ftp.isc.org/isc/dhcp/4.1-ESV-R6/dhcp-4.1-ESV-R6.tar.gz;
sha256 = "17md1vml07szl9dx4875gfg4sgnb3z73glpbq1si7p82mfhnddny";
};
patches =
[ # Don't bring down interfaces, because wpa_supplicant doesn't
# recover when the wlan interface goes down. Instead just flush
# all addresses, routes and neighbours of the interface.
./flush-if.patch
# Make sure that the hostname gets set on reboot. Without this
# patch, the hostname doesn't get set properly if the old
# hostname (i.e. before reboot) is equal to the new hostname.
./set-hostname.patch
];
# Fixes "socket.c:591: error: invalid application of 'sizeof' to
# incomplete type 'struct in6_pktinfo'". See
# http://www.mail-archive.com/blfs-book@linuxfromscratch.org/msg13013.html
NIX_CFLAGS_COMPILE = "-D_GNU_SOURCE";
# It would automatically add -Werror, which disables build in gcc 4.4
# due to an uninitialized variable.
CFLAGS = "-g -O2 -Wall";
buildInputs = [ makeWrapper ];
postInstall =
''
cp client/scripts/linux $out/sbin/dhclient-script
substituteInPlace $out/sbin/dhclient-script \
--replace /sbin/ip ${iproute}/sbin/ip
wrapProgram "$out/sbin/dhclient-script" --prefix PATH : \
"${nettools}/bin:${nettools}/sbin:${iputils}/bin:${coreutils}/bin:${gnused}/bin"
'';
preConfigure =
''
sed -i "includes/dhcpd.h" \
-"es|^ *#define \+_PATH_DHCLIENT_SCRIPT.*$|#define _PATH_DHCLIENT_SCRIPT \"$out/sbin/dhclient-script\"|g"
'';
meta = {
description = "Dynamic Host Configuration Protocol (DHCP) tools";
longDescription = ''
ISC's Dynamic Host Configuration Protocol (DHCP) distribution
provides a freely redistributable reference implementation of
all aspects of DHCP, through a suite of DHCP tools: server,
client, and relay agent.
'';
homepage = http://www.isc.org/products/DHCP/;
license = "http://www.isc.org/sw/dhcp/dhcp-copyright.php";
};
}