# Missing "sys/socket.h", &qu...

**URL:** <https://forums.freertos.org/t/missing-sys-socket-h-qu/4698>\
**Category:** Kernel\
**Created:** [December 14, 2011, 8:39am UTC](https://forums.freertos.org/t/missing-sys-socket-h-qu/4698 "2011-12-14T08:39:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [December 14, 2011, 8:39am UTC](https://forums.freertos.org/t/missing-sys-socket-h-qu/4698/1 "2011-12-14T08:39:42Z")

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**anonymous** wrote on [Wednesday, December 14, 2011](https://sourceforge.net/p/freertos/discussion/382005/thread/cf03ddf4/#d39c):

Hello,

I’ve noticed that there are some examples that include these headers, but I don’t have them in my toolchain. I need them too to start using some other libraries.

I believe these headers are from the Berkeley socket API. Is there an implementation of this API for FreeRTOS? where could I get it?

Thank you very much in advance.

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**Author:** ![rtel](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/rtel/32/31_2.png) [@rtel](https://forums.freertos.org/u/rtel)\
**Post date:** [December 14, 2011, 9:11am UTC](https://forums.freertos.org/t/missing-sys-socket-h-qu/4698/2 "2011-12-14T09:11:52Z")

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**[rtel](https://sourceforge.net/u/rtel/)** wrote on [Wednesday, December 14, 2011](https://sourceforge.net/p/freertos/discussion/382005/thread/cf03ddf4/#c127):

There are a few demos that use sockets.&nbsp; You can start with the link below, which runs under the FreeRTOS Windows simulator:  
[http://interactive.freertos.org/entries/20290712-freertos-win32-project-with-lwip-web-server](http://interactive.freertos.org/entries/20290712-freertos-win32-project-with-lwip-web-server)

Regards.