sysfs - get filesystem type information
int sysfs(int option, const char *fsname);
int sysfs(int option, unsigned int fs_index, char
int sysfs(int option);
() returns information about the filesystem types currently present
in the kernel. The specific form of the sysfs
() call and the
information returned depends on the option
- Translate the filesystem identifier string fsname into a filesystem
- Translate the filesystem type index fs_index into a null-terminated
filesystem identifier string. This string will be written to the buffer
pointed to by buf. Make sure that buf has enough space to
accept the string.
- Return the total number of filesystem types currently present in the
The numbering of the filesystem type indexes begins with zero.
On success, sysfs
() returns the filesystem index for option 1
zero for option 2
, and the number of currently configured filesystems
for option 3
. On error, -1 is returned, and errno
- Either fsname or buf is outside your accessible address
- fsname is not a valid filesystem type identifier; fs_index
is out-of-bounds; option is invalid.
This System-V derived system call is obsolete; don't use it. On systems with
, the same information can be obtained via
; use that interface instead.
There is no libc or glibc support. There is no way to guess how large buf
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