MFS_READ - Read from a file

Purpose   

Read the specified number of bytes from the file to a buffer location. 

Calling Sequence   

int far pascal MFS_READ(pcData, pusLength)

char far * pcData;
unsigned long far * pusLength;

Where   

pcData is a pointer to the data area to be read into. The data area is 
guaranteed to be below the 1-Meg boundary. 

pusLength is a pointer to a word which on entry specifies the number of 
bytes to be read. On return, it is filled in by the mini-FSD with the 
number of bytes successfully read. 
  

Returns   

If no error is detected, a zero error code is returned. If an error is 
detected, a non-zero error code is returned. 

Remarks   

The current file position is advanced by the number of bytes read.