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Asked: 2026-05-13T18:35:29+00:00

I need to do a parse on the data written to my module, and

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I need to do a parse on the data written to my module, and the use of the strtok() function of string.h would be useful. However I’ve tried 

#include <string.h>

and

#include <linux/string.h>

with no success. Is this possible? Or will I have to write my own strtok function?

Thanks

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1 Answer

  1. Editorial Team

    There is no strtok in the valid Linux Kernel API. You will have to write your own. See the section String Manipulation in the Linux Kernel API.

    BTW, I would suggest staying away from strtok (or anything strtok-like). It’s not reentrant and is unsafe in kernel code (which is inherently multithreaded).

    If you’re going to duplicate the function, consider duplicating strtok_r.

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