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GETMNTINFO(3)            BSD Library Functions Manual            GETMNTINFO(3)

NAME
     getmntinfo -- get information about mounted file systems

LIBRARY
     Standard C Library (libc, -lc)

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

     int
     getmntinfo(struct statfs **mntbufp, int flags);

     int
     getmntinfo64(struct statfs64 **mntbufp, int flags);

DESCRIPTION
     The getmntinfo() function returns an array of statfs structures describing each currently mounted file
     system (see statfs(2)).  Likewise, the getmntinfo64() function returns an array of statfs64 structures
     describing each currently mounted file system.

     The getmntinfo() function passes its flags argument transparently to getfsstat(2), while the
     getmntinfo64() function passes its flags argument transparently to getfsstat64().

RETURN VALUES
     On successful completion, getmntinfo() and getmntinfo64() return a count of the number of elements in
     the array.  The pointer to the array is stored into mntbufp.

     If an error occurs, zero is returned and the external variable errno is set to indicate the error.
     Although the pointer mntbufp will be unmodified, any information previously returned by getmntinfo() or
     getmntinfo64() will be lost.

ERRORS
     The getmntinfo() and getmntinfo64() functions may fail and set errno for any of the errors specified
     for the library routines getfsstat(2) or malloc(3).

SEE ALSO
     getfsstat(2), mount(2), statfs(2), mount(8)

HISTORY
     The getmntinfo() function first appeared in 4.4BSD.

BUGS
     The getmntinfo() and getmntinfo64() functions write the array of structures to an internal static
     object and returns a pointer to that object.  Subsequent calls to getmntinfo() and getmntinfo64() will
     modify the same object.

     The memory allocated by getmntinfo() and getmntinfo64() cannot be free(3)'d by the application.

BSD                              June 9, 1993                              BSD