DragonFly On-Line Manual Pages


GETVFSBYNAME(3)       DragonFly Library Functions Manual       GETVFSBYNAME(3)

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. DragonFly 4.1 May 4, 1995 DragonFly 4.1