ustat(2)                                                           ustat(2)

NAME
     ustat - get file system statistics

SYNOPSIS
     #include <sys/types.h>
     #include <ustat.h>

     int ustat(devt dev, struct ustat *buf);

DESCRIPTION
     ustat() returns information about a mounted file system. dev is a
     device number identifying a device containing a mounted file system.
     buf is a pointer to a ustat() structure that includes the following
     elements:

        daddrt     ftfree;        /* Total free blocks */
        inot       ftinode;       /* Number of free inodes */
        char        ffname[6];     /* Filsys name */
        char        ffpack[6];     /* Filsys pack name */

     ustat() fails if one or more of the following apply:

     EINVAL   dev is not the device number of a device containing a mounted
              file system.

     EFAULT   buf points outside the process' allocated address space.

     EINTR    A signal was caught during a ustat() system call.

     ENOLINK  dev is on a remote machine and the link to that machine is no
              longer active.

     ECOMM    dev is on a remote machine and the link to that machine is no
              longer active.

NOTES
     ustat() will be phased out in favor of the statvfs() function.

RESULT
     Upon successful completion, a value of 0 is returned. Otherwise, a
     value of -1 is returned and errno is set to indicate the error.

SEE ALSO
     stat(2), statvfs(2), fs(4).











Page 1                       Reliant UNIX 5.44                Printed 11/98