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==============================================================================
P O R T I N G S T A T U S
==============================================================================
libnet is reasonably portable.
If you verify libnet building and running successfully (sample code works)
on platforms currently labeled UNKNOWN or not listed here at all, please
send email to autostart.ini@gmail.com.
libnet has been run successfully on at least the following operating systems:
SYSTEM STATUS NOTES
==============================================================================
LINUX
------------------------------------------------------------------------------
Linux 3.x FULL (primary development platform)
SOLARIS
------------------------------------------------------------------------------
Solaris UNKNOWN not confirmed working in ages
*BSD
------------------------------------------------------------------------------
FreeBSD UNKNOWN not confirmed working in ages
OpenBSD UNKNOWN not confirmed working in ages
NetBSD UNKNOWN not confirmed working in ages
HP-UX
------------------------------------------------------------------------------
HP-UX UNKNOWN not confirmed working in ages
Apple (Darwin)
------------------------------------------------------------------------------
macOS FULL not tested by me
WINDOWS (Native/MinGW/Cygwin/Cross)
------------------------------------------------------------------------------
MSVC 14.0 FULL Working. See README.win32 for instructions
MinGW (GCC 6.2) FULL Working. See README.win32 for instructions
Cygwin UNKNOWN not confirmed working in ages
ANDROID (Native/Cross)
------------------------------------------------------------------------------
Termux (clang 3.9.1) FULL Working. See detailed instructions below
ARM Toolchain (gnueabi) FULL not tested by me
Platform Specific Details/Instructions
======================================
ANDROID
-------
libnet can be build natively on Android devices running 5.0 Lollipop (SDK 21)
or higher using Termux (https://termux.com/).
See the help pages of Termux for install and setup instructions.
At the time of this writing, doxygen has not been ported to Android yet.
So for this guide, we will build libnet without any docs. If you want docs
you can do one the following:
- build from a release (https://github.com/sgeto/libnet/releases)
- compile docs on one of the supported platforms
- port doxygen to Android
Update: check out my port: https://github.com/sgeto/doxygen
Update 2: my port has been merged into doxygen/master.
Don't use my port. Get the real deal from their repo:
https://github.com/doxygen/doxygen
The minimum packages to install are:
coreutils (important! Busybox alone is not enough!)
autoconf
automake
m4
make
libtool
clang
git (optional)
After that:
1. $ git clone https://github.com/sgeto/libnet.git
This is optional. As explained earlier, you can also build from a release.
2. $ cd libnet && autoreconf -i
Attention! You can not use the autogen.sh bootstrapping script for this step.
The Android file system only loosely resembles what many of us are used to
from their *nix boxes. This means that in Android, many files and folders aren't
located where you would expect them. As a result, many shell scripts, including
this one, will not be able run because their shebangs are pointing to a
none-existing location. (/bin/sh instead of /system/bin/sh or in Termux's
case: /data/data/com.termux/files/usr/bin/sh)
3. $ ./configure TMPDIR=$PREFIX/tmp --prefix=$PREFIX
TMPDIR=$PREFIX/tmp Tell configure to use $PREFIX/tmp instead of /tmp
This is the only MANDATORY configure option.
This is due to the fact that config.guess is
(without root privileges) unable to write to /tmp
--prefix=$PREFIX where to (possibly) install libnet
Use "$PREFIX" or make sure to add a valid path
4. $ make
5. $ make install
This step is optional and really only works if the proper prefix has been set
in step 3
Final Thoughts:
- You don't need a rooted device to build libnet, but you need need root
privileges in order to try the samples and to make use of libnet in general.
- You can not execute anything libnet from the Termux shell, because it does not
have root privileges.
- Even when you elevate you prompt and become root (by typing 'su'), you will
most likely still be unable to to use libnet right away. The reason for that is
that root prompts in Android come with their own shell (which is separate from
the one you use to elevate). So you need to either set or migrate the necessary
environment variables you had in your previous (Termux) shell over to your newly
spawn root shell. Specifically LD_LIBRARY_PATH
If you don't know what that means just run this every time you're root and want
to use libnet (adjust path accordingly):
LD_LIBRARY_PATH=/data/data/com.termux/files/usr/lib
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