getmntinfo - get information about mounted file systems
#include <sys/param.h>
#include <sys/mount.h>
int
getmntinfo(struct statfs **mntbufp, int flags);
The getmntinfo() function returns an array of statfs structures describing
each currently mounted file system (see statfs(2)).
The getmntinfo() function passes its flags parameter transparently to
getfsstat(2).
On successful completion, getmntinfo() returns a count of
the number of
elements in the array. The pointer to the array is stored
into mntbufp.
If an error occurs, zero is returned and the external variable errno is
set to indicate the error. Although the pointer mntbufp
will be unmodified,
any information previously returned by getmntinfo()
will be lost.
The getmntinfo() function may fail and set errno for any of
the errors
specified for the library routines getfsstat(2) or malloc(3).
getfsstat(2), mount(2), statfs(2), mount(8)
The getmntinfo() function first appeared in 4.4BSD.
The getmntinfo() function writes the array of structures to
an internal
static object and returns a pointer to that object. Subsequent calls to
getmntinfo() will modify the same object.
The memory allocated by getmntinfo() cannot be free(3)'d by
the application.
OpenBSD 3.6 June 9, 1993
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