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fstyp_mod_get_attr(3fstyp) [opensolaris man page]

fstyp_mod_init(3FSTYP)				 File System Type Identification Library Functions			    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.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); 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 fstyp_mod_init() 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. Each module exports the fstyp_mod_init(), fstyp_mod_fini(), fstyp_mod_ident(), and fstyp_mod_get_attr() functions. All of these functions map directly to the respective libfstyp interfaces. The fstyp_mod_dump() 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 fstyp_mod_dump() function is not recommended 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. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
fstyp(1M), fstyp_strerror(3FSTYP), libfstyp(3LIB), attributes(5) SunOS 5.11 29 Jun 2006 fstyp_mod_init(3FSTYP)

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fstyp_init(3FSTYP)				 File System Type Identification Library Functions				fstyp_init(3FSTYP)

NAME
fstyp_init, fstyp_fini - initialize and finalize libfstyp handle SYNOPSIS
cc [ flag... ] file... -lfstyp -lnvpair [ library... ] #include <libnvpair.h> #include <libfstyp.h> int fstyp_init(int fd, off64_t **offset, char *module_dir, fstyp_handle_t *handle); void fstyp_fini(void *handle); 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. module_dir Optional location of the libfstyp modules. handle Opaque handle to be used with libfstyp functions. DESCRIPTION
The fstyp_init() function returns a handle associated with the specified parameters. This handle should be used with all other libfstyp functions. If module_dir is NULL, fstyp_init() looks for modules in the default location: /usr/lib/fs subdirectories. The fstyp_init() function locates libfstyp modules, but might defer loading the modules until the subsequent fstyp_ident() call. If module_dir is other than NULL, the fstyp_init() function locates a module in the directory that is specified. If no module is found, fstyp_init fails with FSTYP_ERR_MOD_NOT_FOUND. Modules that do not support non-zero offset can fail fstyp_init() with FSTYP_ERR_OFFSET. The fstyp_fini() function releases all resources associated with a handle and invalidates the handle. RETURN VALUES
The fstyp_init() function returns 0 on success and an error value on failure. See fstyp_strerror(3FSTYP). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
fstyp_ident(3FSTYP), fstyp_mod_init(3FSTYP), fstyp_strerror(3FSTYP), libfstyp(3LIB), attributes(5) SunOS 5.11 20 Jun 2006 fstyp_init(3FSTYP)
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