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{ stdenv, fetchFromGitHub, nettools }:
stdenv.mkDerivation rec {
name = "hans-${version}";
version = "1.0";
src = fetchFromGitHub {
sha256 = "1qnfl7wr5x937b6jx3vhhvnwnrclrqvq7d7zxbfhk74pdwnjy8n4";
rev = "v${version}";
repo = "hans";
owner = "friedrich";
};
buildInputs = [ nettools ];
postPatch = ''
substituteInPlace src/tun.cpp --replace "/sbin/" "${nettools}/bin/"
'';
enableParallelBuilding = true;
installPhase = ''
install -D -m0755 hans $out/bin/hans
'';
meta = with stdenv.lib; {
description = "Tunnel IPv4 over ICMP";
longDescription = ''
Hans makes it possible to tunnel IPv4 through ICMP echo packets, so you
could call it a ping tunnel. This can be useful when you find yourself in
the situation that your Internet access is firewalled, but pings are
allowed.
'';
homepage = https://code.gerade.org/hans/;
license = licenses.gpl3Plus;
platforms = platforms.linux;
};
}
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