explain_fchownat_or_die - change ownership of a file relative to a directory and report errors

       libexplain version 1.4
       Copyright (C) 2013 Peter Miller

                                                                                      explain_fchownat_or_die(3)

       The  explain_fchownat_or_die  function  is  used  to  call  the  fchownat(2)  system  call. On failure an
       explanation will be printed to stderr, obtained from  the  explain_fchownat(3)  function,  and  then  the
       process terminates by calling exit(EXIT_FAILURE).

       The  explain_fchownat_on_error  function  is  used  to  call  the  fchownat(2) system call. On failure an
       explanation will be printed to stderr, obtained from the explain_fchownat(3) function, but still  returns
       to the caller.

       dirfd   The dirfd, exactly as to be passed to the fchownat(2) system call.

       pathname
               The pathname, exactly as to be passed to the fchownat(2) system call.

       owner   The owner, exactly as to be passed to the fchownat(2) system call.

       group   The group, exactly as to be passed to the fchownat(2) system call.

       flags   The flags, exactly as to be passed to the fchownat(2) system call.

       The  explain_fchownat_or_die  function  is  intended  to  be  used  in a fashion similar to the following
       example:
              explain_fchownat_or_die(dirfd, pathname, owner, group, flags);

       explain_fchownat_or_die - change ownership of a file relative to a directory     and report errors

       The  explain_fchownat_or_die  function  only returns on success, see fchownat(2) for more information. On
       failure, prints an explanation and exits, it does not return.

       The explain_fchownat_on_error function always returns the value return by the wrapped fchownat(2)  system
       call.

fchownat(2)
               change ownership of a file relative to a directory

       explain_fchownat(3)
               explain fchownat(2) errors

       exit(2) terminate the calling process

       #include <libexplain/fchownat.h>
       void explain_fchownat_or_die(int dirfd, const char *pathname, int owner, int group, int flags);
       int explain_fchownat_on_error(int dirfd, const char *pathname, int owner, int group, int flags);