sysfs - get file system type information
int sysfs(int option__, const char
int sysfs(int option, unsigned int
int sysfs(int option);
sysfs returns information about the file system types
currently present in the kernel. The specific form of the
sysfs call and the information returned depends on
the option in effect:
Translate the file-system identifier string fsname
into a file-system type index.
Translate the file-system type index fs_index into a
null-terminated file-system identifier string. This string
will be written to the buffer pointed to by buf. Make
sure that buf has enough space to accept the
Return the total number of file system types currently
present in the kernel.
The numbering of the file-system type indexes begins with
On success, sysfs returns the file-system index for
option 1, zero for option 2, and the number of
currently configured file systems for option 3. On
error, -1 is returned, and errno is set
fsname is not a valid file-system type identifier;
fs_index is out-of-bounds; option is
Either fsname or buf is outside your
accessible address space.
On Linux with the proc filesystem mounted on
/proc, the same information can be derived from
There is no libc or glibc support. There is no way to guess
how large buf should be.