C or C++ : Insecure string API

The string manipulation function used is insecure, since it allows a buffer overflow. Insecure functions include: strcpy, strcat. This may lead to incorrect behavior of the application, crash, or violation of valuable data confidentiality.

The strcpy() function copies the C string pointed by source into the array pointed by destination, including the terminating null character. The strcat appends a copy of the source string to the destination string. It is important to note that, the destination array should be large enough otherwise it may result in undefined behavior.