Add iputils static PIE build

iputils/.gitignore

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+/iputils-*
+/*.tar.gz

iputils/README.md

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+# iputils
+
+Build the [iputils](https://github.com/iputils/iputils/) set of tools as static PIE ELF binaries running on Linux.
+
+## Requirements
+
+Make sure the following packages are installed:
+* gcc >= 8 (required for the `-static-pie` linking option)
+* autotools
+* meson
+* GNU Make
+
+For Debian, run the command below to install all requirements:
+
+```bash
+$ sudo apt install build-essential
+export DEBIAN_FRONTEND="noninteractive"
+
+apt update
+
+apt install -y --no-install-recommends \
+	clang \
+	docbook-xsl-ns \
+	file \
+	gcc \
+	gettext \
+	iproute2 \
+	libcap-dev \
+	libidn2-0-dev \
+	libssl-dev \
+	make \
+	meson \
+	pkg-config \
+	xsltproc
+
+```
+
+## Building
+
+The static PIE ELF file are located in the current directory.
+If you want to rebuild them, run:
+
+```bash
+$ ./build.sh
+```
+
+This script downloads, unpacks, patches, configures and builds the tools.
+
+## Running
+
+The resulting binaries can be used as is.
+For example, you can ping an address by issuing the command:
+
+```bash
+$ ./ping 1.1.1.1
+```
+
+## Issues
+
+1. When running in KVM with LWIP you can't use RAW sockets because they're not
+   available by default. See this for more information:
+   https://github.com/unikraft/lib-lwip/pull/2
+
+2. There is a bug in LWIP where normal sockets (not RAW) that use ICMP protocol
+   are sent using UDP protocol instead. See https://github.com/unikraft/lib-lwip/issues/32

iputils/build.sh

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+#!/bin/bash
+
+
+BUILD_VERSION=20221126
+# Clean up.
+rm -fr iputils-*
+rm -fr *.tar.gz
+
+echo -n "Downloading iputils ... "
+wget -O "${BUILD_VERSION}.tar.gz" -q https://github.com/iputils/iputils/archive/refs/tags/${BUILD_VERSION}.tar.gz
+echo ""
+
+echo -n "Unpacking iputils ... "
+tar xzf "${BUILD_VERSION}.tar.gz"
+echo ""
+
+SOURCE_DIR="iputils-${BUILD_VERSION}"
+pushd "${SOURCE_DIR}" > /dev/null 2>&1
+
+echo "Patching iputils files ... "
+patch < ../iputils.patch
+echo ""
+
+echo "Building ... "
+./configure --prefix=.
+make
+
+popd > /dev/null 2>&1
+
+ln -fn "${SOURCE_DIR}/builddir/ping/ping" .
+ln -fn "${SOURCE_DIR}/builddir/arping" .
+ln -fn "${SOURCE_DIR}/builddir/tracepath" .
+ln -fn "${SOURCE_DIR}/builddir/clockdiff" .

iputils/iputils.patch

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+--- configure	2022-11-26 01:07:21.000000000 +0200
++++ configure	2023-03-31 12:40:52.167300078 +0300
+@@ -1,14 +1,16 @@
+ #!/bin/sh
+
+ DIR=builddir
+
++export LDFLAGS="-static-pie"
++
+ echo "Using './$DIR' as the directory for build output"
+ echo
+
+ if [ $# -ne 0 ]; then
+ 	meson configure $DIR
+ 	echo
+ 	echo 'Configuration can be changed like this:'
+ 	echo "  meson configure $DIR -Dprefix=/usr"
+ 	echo '  More info: http://mesonbuild.com/Configuring-a-build-directory.html'
+ 	# See also: http://mesonbuild.com/howtox.html
+--- meson.build	2022-11-26 01:07:21.000000000 +0200
++++ meson.build	2023-03-31 12:41:28.679222461 +0300
+@@ -1,32 +1,37 @@
+ # Copyright (c) Iputils Project, 2017-2021
+
+ project('iputils', 'c',
+ 	default_options : [
+ 		'c_std=c99',
+ 		'warning_level=3',
+ 		'localstatedir=var',
++		'USE_IDN=false',
+ 	],
+ 	meson_version : '>=0.40',
+ 	version : '20221126') # keep in sync with: git describe | awk -F- '{print $1}'
+
+ cc = meson.get_compiler('c')
+
+ add_project_arguments(
++	'-fPIC',
+ 	'-include', 'config.h',
+ 	'-include', 'git-version.h',
+ 	language : 'c'
+ )
+
+ conf = configuration_data()
+ conf.set_quoted('PACKAGE_NAME', meson.project_name())
+
++conf.set('prefer_static', true)
++conf.set('default_library', 'static')
++
+ build_arping = get_option('BUILD_ARPING')
+ build_clockdiff = get_option('BUILD_CLOCKDIFF')
+ build_ping = get_option('BUILD_PING')
+ build_tracepath = get_option('BUILD_TRACEPATH')
+
+ build_mans = get_option('BUILD_MANS')
+ build_html_mans = get_option('BUILD_HTML_MANS')
+ run_tests = not get_option('SKIP_TESTS')
+
+ prefix = get_option('prefix')