GETMNTINFO

Section: C Library Functions (3)
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BSD mandoc

NAME

getmntinfo - get information about mounted file systems

SYNOPSIS

Fd #include <sys/param.h> Fd #include <sys/ucred.h> Fd #include <sys/mount.h> Ft int Fn getmntinfo struct statfs **mntbufp int flags

DESCRIPTION

The Fn getmntinfo function returns an array of statfs structures describing each currently mounted file system (see statfs(2)).

The Fn getmntinfo function passes its Fa flags parameter transparently to getfsstat(2).

RETURN VALUES

On successful completion, Fn getmntinfo returns a count of the number of elements in the array. The pointer to the array is stored into Fa mntbufp .

If an error occurs, zero is returned and the external variable errno is set to indicate the error. Although the pointer Fa mntbufp will be unmodified, any information previously returned by Fn getmntinfo will be lost.

ERRORS

The Fn getmntinfo function may fail and set errno for any of the errors specified for the library routines getfsstat(2) or malloc(3).

HISTORY

The Fn getmntinfo function first appeared in 4.4BSD.

BUGS

The Fn getmntinfo function writes the array of structures to an internal static object and returns a pointer to that object. Subsequent calls to Fn getmntinfo will modify the same object.

The memory allocated by Fn getmntinfo cannot be free(2)Ns'd by the application.

This document was created by man2html, using the manual pages.
Time: 15:52:54 GMT, January 15, 2023