unsigned char mxl_randio (FCB *fcb, void *data, unsigned int recno)

Perform random file I/O. This routine is entered by a jump not a call.

c =Read or write operation
fcb =File Control Block.
data =Pointer to buffer for data.
recno =Record number to process.
Return:Zero for success, non-zero on error.

Include file: diskio.h