Database Simple project

You need to create just 1 file of data base. You need 3 .c files. 1 with the main function. 1 with asking functions and 1 with the bug check if the input is correct. You also need to create a .h file with all the declarations in 1. Please dont use scanf and use fgets the sscanf. Read the file attached to it too please, there are the requirements. I have also attached a .c file which is the int main. I want you to do it using my main file. The type of database should be binary.