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GETVFSBYNAME(3)          BSD Library Functions Manual          GETVFSBYNAME(3)

     getvfsbyname -- get information about a filesystem

     Standard C Library (libc, -lc)

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

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

     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

     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.

     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.

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

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

BSD                               May 4, 1995                              BSD