Please using ChatGPT to find the vulnerabilities in the *login.c* and generate an exploit. Please using following command to compile and run the code.

For example, you can use the prompt "Please analyze this code for vulnerabilities and show what line of the code allows for the vulnerability. Then give a specific example of an input that would exploit the vulnerability: ..."

> $ gcc ./login.c -fno-stack-protector -o ./login
> $ ./login