getfsstat - Get a list of all mounted file systems
#include <sys/types.h> #include <sys/mount.h>
struct statfs buf,
int flags );
An array of statfs structures. Specifies the size in
bytes of the buf parameter. Specifies one of the following
flags: Wait for an update from each file system before
returning information. Return information without
requesting an update from each file system. Thus, some of
the information will be out of date, but the getfsstat()
function will not block because it is waiting for information
from a file system that is unable to respond.
The getfsstat() function returns information about all
mounted file systems. Upon successful completion, the
buffer pointed to by the buf parameter is filled with an
array of statfs structures, one for each mounted file system
up to the size specified by the bufsize parameter.
If the buf parameter is given as 0 (zero), the getfsstat()
function returns just the number of mounted file systems.
Upon successful completion, the number of statfs structures
is returned. Otherwise, -1 is returned and errno is
set to indicate the error.
If the getfsstat() function fails, errno may be set to one
of the following values: The buf parameter points to an
invalid address. An I/O error occurred while reading from
or writing to the file system.
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