crypt function and link error "undefined reference to 'crypt'"

Question

I have used the crypt function in c to encrypt the given string.
I have written the following code,

#include<stdio.h>

#include<unistd.h>



int main()

{

    printf("%s\n",crypt("passwd",1000));

}

But the above code threw an error ,"undefined reference to `crypt'".
What is the problem in the above code.

Thanks in advance.

Answer 1

If you want to use the crypt() function, you need to link to the crypt library. Add -lcrypt to your compile command (as the man page tells you to!).

crypt function and link error "undefined reference to 'crypt'"

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