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

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{ lib, stdenv, fetchFromGitHub, fetchpatch, autoreconfHook, libpcap, pcre }:
stdenv.mkDerivation rec {
pname = "ngrep";
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version = "1.47";
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src = fetchFromGitHub {
owner = "jpr5";
repo = "ngrep";
rev = "V${lib.replaceStrings ["."] ["_"] version}";
sha256 = "1x2fyd7wdqlj1r76ilal06cl2wmbz0ws6i3ys204sbjh1cj6dcl7";
};
patches = [
(fetchpatch {
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url = "https://patch-diff.githubusercontent.com/raw/jpr5/ngrep/pull/11.patch";
sha256 = "0k5qzvj8j3r1409qwwvzp7m3clgs2g7hs4q68bhrqbrsvvb2h5dh";
})
];
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nativeBuildInputs = [ autoreconfHook ];
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buildInputs = [ libpcap pcre ];
configureFlags = [
"--enable-ipv6"
"--enable-pcre"
"--disable-pcap-restart"
"--with-pcap-includes=${libpcap}/include"
];
preConfigure = ''
sed -i "s|BPF=.*|BPF=${libpcap}/include/pcap/bpf.h|" configure
'';
meta = with lib; {
description = "Network packet analyzer";
longDescription = ''
ngrep strives to provide most of GNU grep's common features, applying
them to the network layer. ngrep is a pcap-aware tool that will allow you
to specify extended regular or hexadecimal expressions to match against
data payloads of packets. It currently recognizes IPv4/6, TCP, UDP,
ICMPv4/6, IGMP and Raw across Ethernet, PPP, SLIP, FDDI, Token Ring and
null interfaces, and understands BPF filter logic in the same fashion as
more common packet sniffing tools, such as tcpdump and snoop.
'';
homepage = "https://github.com/jpr5/ngrep/";
# <ngrep>/doc/README.txt says that ngrep itself is licensed under a
# 'BSD-like' license but that the 'regex' library (in the ngrep tarball) is
# GPLv2.
license = "ngrep"; # Some custom BSD-style, see LICENSE.txt
platforms = with platforms; linux ++ darwin;
maintainers = [ maintainers.bjornfor ];
};
}