Name

getvfsbyname - get information about a filesystem

Library

Standard C Library (libc, -lc)

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.

Table of Contents

• Name
• Library
• Synopsis
• Description
• Return Values
• Errors
• See Also
• History