    FSTAT(II)                     8/5/73                    FSTAT(II)

    NAME
         fstat  -  get status of open file

    SYNOPSIS
         (fstat = 28.)
         (file descriptor in r0)
         sys fstat; buf

         fstat(fildes, buf)
         struct inode *buf;

    DESCRIPTION
         This  call  is identical to stat, except that it operates on
         open files instead of files given by name.  It is most often
         used  to  get  the  status  of the standard input and output
         files, whose names are unknown.

    SEE ALSO
         stat(II)

    DIAGNOSTICS
         The error bit (c-bit) is set if the file descriptor  is  un-
         known;  from  C, a -1 return indicates an error, 0 indicates
         success.

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