please write this code in c

Implement a file transfer system using UDP. For this task first you should implement char peer system done in the class. Modify this program so that a file can be sent. Ask a port number and filename. Then send the file in 100 byte packages to the other side. Every package should have starting point of the data. When you get data, you should seek to the location that is specified at the start of the data. You can assume that you are working on the same system. Ignore any missing data packages. Save to fixed filename or if you want transfer filename first. You can use Iseek as follows: Iseek(fd, start, SEEK_SET)