getvfsbyname3
Get information about a filesystem
Usage
#include <sys/param.h>
#include <sys/mount.h>
int
getvfsbyname(const char *name, struct vfsconf *vfc);
Library
Standard C Library (libc, -lc)
Overview
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
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.
Releases
155 releases since Mac OS X 10.2; the text changed 1 time.