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Why gets function is dangerous to use?

Why gets function is dangerous to use?

The gets() function is unsafe because it does not perform bounds checking on the size of its input. An attacker can easily send arbitrarily-sized input to gets() and overflow the destination buffer.

What is the difference between Gets and Scanf?

The main difference between them is: scanf() reads input until it encounters whitespace, newline or End Of File(EOF) whereas gets() reads input until it encounters newline or End Of File(EOF), gets() does not stop reading input when it encounters whitespace instead it takes whitespace as a string.

Why do we use gets instead of scanf in C?

scanf() reads input until it encounters whitespace, newline or End Of File(EOF) whereas gets() reads input until it encounters newline or End Of File(EOF), gets() does not stop reading input when it encounters whitespace instead it takes whitespace as a string.

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Why can’t I use gets() in C programming?

It’s because gets () it’s so incredibly dangerous to use, that some C libraries have removed it completely and replaced it with a version that does nothing. Use fgets () instead. Reads characters from the standard input (stdin) and stores them as a C string into str until a newline character or the end-of-file is reached.

Why should I not use ‘get’ in C++ to prevent buffer overflow?

You should not use gets since it has no way to stop a buffer overflow. If the user types in more data than can fit in your buffer, you will most likely end up with corruption or worse.

What is the difference between fgets and gets in C programming?

Instead of using gets, you want to use fgets, which has the signature ( fgets, if it reads an entire line, will leave the ‘ ‘ in the string; you’ll have to deal with that.) gets remained an official part of the language up to the 1999 ISO C standard, but it was officially deprecated by the 2011 standard and removed in the 2014 standard.

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Is there a simple way to input strings in C without guessing?

Pls help, isnt there a simple way to input strings in C without all the fuss. I never had a problem in C++. Without a full program that can be run, it’s hard to tell you what’s wrong without guessing.