fstyp_init, fstyp_fini - initialize and finalize libfstyp handle
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(fstyp_handle_t handle);
Open file descriptor of a block or a raw device that contains the file system to be identified.
Offset from the beginning of the device where the file system is located.
Optional location of the libfstyp modules.
Opaque handle to be used with libfstyp functions.
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.
The fstyp_init() function returns 0 on success and an error value on failure. See fstyp_strerror(3FSTYP).
See attributes(7) for descriptions of the following attributes:
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fstyp_ident(3FSTYP), fstyp_mod_init(3FSTYP), fstyp_strerror(3FSTYP), libfstyp(3LIB), attributes(7)