File System Type Identification Library Functions
                                           fstypmodinit(3FSTYP)



NAME
     fstypmodinit,       fstypmodfini,       fstypmodident,
     fstypmodgetattr,  fstypmoddump - libfstyp module inter-
     face

SYNOPSIS
     cc [ flag... ] file... -lfstyp  -lnvpair  [ library... ]
     #include 
     #include 

     int fstypmodinit(int fd, off64t **offset, fstypmodhandlet *handle);


     void fstypmodfini(fstypmodhandlet handle);


     int fstypmodident(fstypmodhandlet handle);


     int fstypmodgetattr(fstypmodhandlet handle, nvlistt **attr);


     int fstypmoddump(fstypmodhandlet handle, FILE *fout, FILE *ferr);


PARAMETERS
     fd        Open file descriptor of a block or  a  raw  device
               that contains the file system to be identified.


     offset    Offset from the beginning of the device where  the
               file system is located.


     handle    Opaque  handle  that   the   module   returns   in
               fstypmodinit()  and  is  used  with other module
               functions.


     fout      Output stream.


     ferr      Error stream.


DESCRIPTION
     A libfstyp module implements heuristics required to identify
     a file system type. The modules are shared objects loaded by
     libfstyp. The libfstyp modules are  located  in  /usr/lib/fs
     subdirectories.  A subdirectory name defines the name of the
     file system.



SunOS 5.11          Last change: 29 Jun 2006                    1






File System Type Identification Library Functions
                                           fstypmodinit(3FSTYP)



     Each module exports the fstypmodinit(),  fstypmodfini(),
     fstypmodident(),  and  fstypmodgetattr() functions. All
     of these functions map directly to the  respective  libfstyp
     interfaces.


     The fstypmoddump() function is optional. It can be used to
     output  unformatted  information about the file system. This
     function is used by the fstyp(1M) command when the -v option
     is  specified.  The  fstypmoddump() function is not recom-
     mended and should be used only in legacy modules.

FILES
     /usr/lib/fs/

         Default module directory.


     /usr/lib/fs/fstype/fstyp.so.1

         Default path to a libfstyp module  for  an  fstype  file
         system.


ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Evolving                    
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     fstyp(1M),  fstypstrerror(3FSTYP),  libfstyp(3LIB),  attri-
     butes(5)












SunOS 5.11          Last change: 29 Jun 2006                    2






File System Type Identification Library Functions
                                           fstypmodinit(3FSTYP)






















































SunOS 5.11          Last change: 29 Jun 2006                    3