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LibNetBlock

LibNetBlock (LIBrary for Blocking Network access) is a library which partially (read below for limitations) ensures that no program under its control can use the network. LibNetBlock does this by intercepting calls to some C library functions and replacing them by its own substitutes.

You can think of LibNetBlock as a simple layer-7 (L7) firewall that simply blocks the network access for the program it controls.

There is NO NEED to rebuild your software, because LibNetBlock is a pre-loadable library, meaning you just need to RUN the software with LibNetBlock loaded.
LibNetBlock is also a development library.

Read the info documentation (type 'info doc/libnetblock.info') to get more information.

See https://libnetblock.sourceforge.io for details.

My related projects:
- LibSecRm,
- LibHideIP.

[Compiling]
[Usage]
[Limitations]
[Reporting issues]
[Summary of changes]

Download

Screenshots

LibNetBlock blocking some functions in a test program

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See my other SourceForge projects on my SourceForge profile page.