Sample program to get the volume name of the volume that a given file
resides on.  Works on any device, even the RAM: device.  

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 6043   11484  52.6% -lh5- d810 Mar  1  1987 GetVolume/GetVolume
[generic]                  687    1223  56.2% -lh5- c993 Mar  1  1987 GetVolume/GetVolume.c
[generic]                  451     697  64.7% -lh5- 8536 Mar  1  1987 GetVolume/POSTER
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files    7181   13404  53.6%            Mar  1  1987