🚀 go-pugleaf

I need some assistance finding source code written in C.  I'm trying to write a
Floppy Disk Interface to a 1.44M DOS drive.  My current OS is proprietary and
will not allow for servicing of DOS interrupts.  I've obtained DOS code from the
FREEDOS site on the WEB.  This code works well, but uses commands like
fopen() and other <stdio.h> files which make use of DOS interrupts.  Ultimately
I need the source code that handles the DOS function calls and interrupts.
C source code for the following files would be fantastic:
	Interrupt  	0DH	Disk Reset
	Interrupt  	0EH	Select Disk
	Interrupt  	0FH	Open File
	Interrupt	10H	Close File
	Interrupt	11H	Search for First Entry
	Interrupt	12H	Search for Next Entry

If you can provide any help, I would greatly appreciate it.  Please send
correspondence to the e-mail address above.
Thanks in advance.
Jason R. Owens