Misc. Reference Manual Pages                    fstyp_mod_init(3FSTYP)

NAME
     fstyp_mod_init, fstyp_mod_fini, fstyp_mod_ident,
     fstyp_mod_get_attr, fstyp_mod_dump - libfstyp module interface

SYNOPSIS
     cc [ flag... ] file... -lfstyp -lnvpair [ library... ]
     #include <libnvpair.h>
     #include <libfstyp_module.h>

     int fstyp_mod_init(int fd, off64_t offset, fstyp_mod_handle_t *handle);
     
     void fstyp_mod_fini(fstyp_mod_handle_t handle);
     
     int fstyp_mod_ident(fstyp_mod_handle_t handle);
     
     int fstyp_mod_get_attr(fstyp_mod_handle_t handle, nvlist_t **attr);
     
     int fstyp_mod_dump(fstyp_mod_handle_t handle, FILE *fout, FILE *ferr);

     A libfstyp module implements heuristics required to identify a
     filesystem type. The modules are shared objects loaded by libfstyp.
     Libfstyp modules are located in subdirectories of the /usr/lib/fs
     directory. Subdirectory name defines the name of the filesystem.

     Each module must export functions fstyp_mod_init, fstyp_mod_fini,
     fstyp_mod_ident and fstyp_mod_get_attr. All these functions map
     directly to the respective libfstyp interfaces.
     
     fstyp_mod_dump() is optional. It can be used to output unformatted
     information about the filesystem. This function is used by the
     fstyp(1M) command when the -v option is specified. fstyp_mod_dump()
     is not recommended and should only be used in legacy modules.

FILES
     /usr/lib/fs/              Default module directory.

     /usr/lib/fs/<fstype>/fstyp.so  Default path to a libfstyp module
                              for <fstype> filesystem.

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:
     ____________________________________________________________
    |       ATTRIBUTE TYPE       |        ATTRIBUTE VALUE       |
    |____________________________|______________________________|
    | Interface Stability        |  Evolving                    |
    |____________________________|______________________________|
    | MT-Level                   |  MT-Safe                     |
    |____________________________|______________________________|


SEE ALSO
     fstyp(1M), libfstyp(3LIB), fstyp_strerror(3FSTYP), attributes(5)