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    The following form allows you to view linux man pages.

    Command:

    ustat

    
    
    

    SYNOPSIS

           #include <sys/types.h>
           #include <unistd.h>    /* libc[45] */
           #include <ustat.h>     /* glibc2 */
    
           int ustat(dev_t dev, struct ustat *ubuf);
    
    
    

    DESCRIPTION

           ustat()  returns  information  about  a  mounted  filesystem.  dev is a
           device number identifying a device  containing  a  mounted  filesystem.
           ubuf is a pointer to a ustat structure that contains the following mem-
           bers:
    
               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 */
    
           The last two fields, f_fname and f_fpack, are not implemented and  will
           always be filled with null bytes ('\0').
    
    
    

    RETURN VALUE

           On success, zero is returned and the ustat structure pointed to by ubuf
           will be filled in.  On error, -1 is returned, and errno is  set  appro-
           priately.
    
    
    

    ERRORS

           EFAULT ubuf points outside of your accessible address space.
    
           EINVAL dev  does not refer to a device containing a mounted filesystem.
    
           ENOSYS The mounted filesystem referenced by dev does not  support  this
                  operation, or any version of Linux before 1.3.16.
    
    
    

    CONFORMING TO

           SVr4.
    
    
    

    NOTES

           ustat()  is  deprecated  and  has been provided only for compatibility.
           All new programs should use statfs(2) instead.
    
       HP-UX notes
           The HP-UX version of the  ustat  structure  has  an  additional  field,
           f_blksize,  that  is unknown elsewhere.  HP-UX warns: For some filesys-
           tems, the number of free inodes does not change.  Such filesystems will
           return  -1  in  the  field  f_tinode.  For some filesystems, inodes are
           dynamically allocated.  Such filesystems will return the current number
           of free inodes.
    
    
    

    SEE ALSO

           stat(2), statfs(2)
    
    
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