HPUX ustat[2]

 ustat(2)                                                           ustat(2)





 NAME
      ustat - get file system statistics

 SYNOPSIS
      #include <ustat.h>

      int ustat(dev_t 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 (defined in <ustat.h>) that
      includes the following elements:

           daddr_t  f_tfree;        /* Total free blocks */
           ino_t    f_tinode;       /* Number of free inodes */
           char     f_fname[6];     /* Filsys name */
           char     f_fpack[6];     /* Filsys pack name */
           int      f_blksize;      /* Block size */

      The values of the f_tfree and f_blksize fields are reported in
      fragment size units.

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

 ERRORS
      ustat() fails if one or more of the following is true:

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

      [EFAULT]       buf points outside the process's allocated address
                     space.  The reliable detection of this error is
                     implementation dependent.

 AUTHOR
      ustat() was developed by AT&T and HP.

 SEE ALSO
      touch(1), stat(2), fs(4).

 STANDARDS CONFORMANCE
      ustat(): SVID2, XPG2









 Hewlett-Packard Company            - 1 -     HP-UX Release 9.0: August 1992