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Welcome to Software Development on Codidact!

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Q&A Is strcpy dangerous and what should be used instead?

I heard rumours that the strcpy function is dangerous and shouldn't be used. Supposedly it can be exploited to create buffer overflows somehow. And indeed when I compile my C code in the admittedl...

2 answers  ·  posted 3y ago by Lundin‭  ·  last activity 8mo ago by Lundin‭

#1: Initial revision by user avatar Lundin‭ · 2021-04-27T13:17:25Z (over 3 years ago)
Is strcpy dangerous and what should be used instead?
I heard rumours that the `strcpy` function is dangerous and shouldn't be used. Supposedly it can be exploited to create buffer overflows somehow. 

And indeed when I compile my C code in the admittedly non-conforming Visual Studio C compiler, it warns me about using `strcpy` among other functions, labelling it dangerous. Is it true?

If so, what should we use instead? Some rumours say that `strncpy` should be used instead, others like Microsoft tell me to use `strcpy_s`.