SYNOPSIS

     #include <sys/param.h>
     #include <sys/mount.h>

     int
     getvfsbyname(const char *name, struct vfsconf *vfc);

DESCRIPTION

     The getvfsbyname() function provides access to information about a
     filesystem module that is configured in the kernel.  If successful, the
     requested filesystem vfsconf is returned in the location pointed to by
     vfc.  The fields in a ``struct vfsconf'' are defined as follows:

     vfc_name      the name of the filesystem
     vfc_typenum   the filesystem type number assigned by the kernel
     vfc_refcount  the number of active mount points using the filesystem
     vfc_flags     flag bits as described in getvfsent(3)

RETURN VALUES

     The getvfsbyname() function returns the value 0 if successful; otherwise
     the value -1 is returned and the global variable errno is set to indicate
     the error.

ERRORS

     The following errors may be reported:

     [EFAULT]           The vfc pointer contains an invalid address.

     [ENOENT]           The name specifies a filesystem that is unknown or not
                        configured in the kernel.

SEE ALSO

     mount(2), getvfsent(3), sysctl(3), mount(8), sysctl(8)

HISTORY

     A variant of the getvfsbyname() function first appeared in FreeBSD 2.0.

BSD                               May 4, 1995                              BSD