FSH_NAMEFROMSFN - Get the full path name from an SFN.

Purpose   

This call allows an FSD to retrieve the full path name for an object to 
which an SFN refers. 

Calling Sequence   

int far pascal FSH_NAMEFROMSFN(sfn, pName, pcbName)

unsigned short sfn;
char far * pName;
unsigned short far * pcbName;

Where   

sfn is the system file number of a file instance, obtained from the sfi_ 
selfsfn field of the file-system-independent part of the SFT for the 
object. 

pName is the location of where the returned full path name is to be stored 
. 

pcbName is the location of where the FSD places the size of the buffer 
pointed to by pName. On return, the kernel will fill this in with the 
length of the path name. This length does not include the terminating null 
character. The size of the buffer should be long enough to hold the full 
path name, or else an error will be returned. 
  

Returns   

If no error is detected, a zero error code is returned. If an error is 
detected, one of the following error codes is returned: 

oERROR_INVALID_HANDLE 
the SFN is invalid. 

oERROR_BUFFER_OVERFLOW 
the buffer is too short for the returned path. 
  

Remarks   

FSH_NAMEFROMSFN will not block. 

Note:  OS/2 does not validate input parameters; the FSD should call FSH_ 
PROBEBUF where appropriate.