LibHideIP

LibHideIP (LIBrary for Hiding the IP) is a library which partially (read below for limitations) ensures that no program can obtain the local IP address. LibHideIP does this by intercepting calls to some C library functions and replacing them by its own substitutes.
The IP address that would be obtained is first changed to a neutral address, like 0.0.0.0 or 127.0.0.1 and returned to the caller.

Requirements for compiling:

a non-root account. Please, NEVER compile or make anything as root.
a working C compiler
development package for the C library (like glibc-devel and glibc-headers).
The sys/stat.h contains functions needed to check an executable's type. If it is a symbolic link, LibHideIP will follow it.
The dlfcn.h header contains functions needed to call the original functions. It has to have RTLD_NEXT defined. LibHideIP wouldn't work without this, so it won't compile without this.
libdl, the dynamic loading library, with its development package (unless the required functions are in the C library)
the make program

Type ./configure to configure the library for your system.
If you want to enable the public interface of LibHideIP, configure the library with ./configure --enable-public-interface

Type make to compile the library. Documentation comes complied (and can be copied right away), but can be changed and recompiled, if you have the makeinfo program (texinfo package).

Type make install to install the library. Read the docs on how to make the library running.

Type info libhideip (after installation) or info doc/libhideip.info (before installation) to get help.

RPM dependencies:

libc.so.6 (GLIBC_2.4)
rtld(GNU_HASH)

THE LIBRARY HAS BEEN TESTED, BUT IT MAY NOW OR LATER CONTAIN ERRORS, WHICH MAY LEAD TO INCORRECT PROGRAM BEHAVIOUR. READ THE LICENSE FOR A WARRANTY (THERE IS NONE).

Limitations

LibHideIP can do nothing if:

A program is using direct kernel calls or non-standard calls, thus bypassing even the C library
LibHideIP is not loaded (read the "Installing" chapter in the "info" docs).
A program is linked statically (so it doesn't use shared libraries and has all the functions compiled in it).
The operating system doesn't support shared libraries (like DOS)
The operating system doesn't support preloading shared libraries before system libraries.
LibHideIP is enabled by setting environment variables and a program is launched by another program, which clears the environment variables used by the dynamic linker, so the dynamic linker doesn't preload LibHideIP. Some Java Runtime Environments seem to do this.

Screenshots of LibHideIP

Available at SourceForge.

System compatibility

LibHideIP compiles on the following systems:

Fedora Core 4 GNU/Linux (i686 CPU) - versions up to 0.3 (later not checked)
Fedora 12 GNU/Linux (i686 CPU) - versions from 0.3 (earlier not checked)
Mandriva 2008.1 GNU/Linux (i686 CPU)
Mandriva 2011 GNU/Linux (i686 CPU) - version 0.5 (earlier and later not checked)
OpenBSD 3.8 (x86 CPU) - versions up to 0.3 (later not checked)
Debian 5.0 GNU/Linux (x86 CPU) - versions from 0.4 (earlier not checked)

Download LibHideIP

Current version is 0.6.
Download this at SourceForge.

My other software

Check out Wipe Free Space, LibSecRm, IMYplay and JYMAG on SourceForge.
See my other free software:

Wipe Free Space - a program for cleaning of free space on filesystems
LibSecRm - a security wrapper library for C library functions which insecurely delete data
KonqSec - a set of Konqueror security-related context menu entries
JYMAG - a program for Sagem mobile phones
IMYplay - a program for playing iMelody ringtones (IMY files) and an IMY-to-MIDI converter
SOAP Service Tester - a program for testing SOAP services

AsmDoc - a HTML documentation generator for assembly language
source converters between NASM, FASM and GAS
C header to assembly header converters
Kate/KWrite syntax highlighting for NASM/FASM
some FASM macros
Makefile generator for FASM
Linux 2.6 kernel module helper for FASM
A set of Autoconf macros
Assembly converter for Doxygen
Asm::X86 Perl module

My GPG/PGP key

GnuPG/PGP key used to sign the packages: asc format
Number: 1C56DA1E, SHA1 fingerprint: E91E 699F 1026 D0EF 745E EC3B 353A D368 1C56 DA1E

Contact info

Contact me: bogdro AT users . sourceforge . net (English accepted, just say '[SOFT]' in the title). GnuPG/PGP key the same as above.

Page info

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