Keylogger output file

[GiacomoLaw]

Currently mucking around with a keylogger. Looking at a few examples, I was just wondering, but why does this keylogger print the keystroke as a string here:

fprintf(OUTPUT_FILE, "%s", &key_stroke);

instead of:

fprintf(OUTPUT_FILE, "%c", key_stroke);

You can check out the repo I'm using here: https://github.com/GiacomoLaw/Keylogger/tree/master/windows

Thank you!

[integralfx]

why does this keylogger print the keystroke as a string here:

What do you mean?

int n{ 65 };

printf( "%s\n", &n );
printf( "%c\n", n );

A
A

[coder777]

key_stroke is an int but is treated as a string. The programmer is an optimist and expects that the value and the terminating 0 is at the right position to form a valid string.