an operand.
(Formatting the file names): Warn that even with -N unprintable
chars are still printed as '?' some times.
(rm invocation): Reword rm -d to note that it's sometimes useful
on non-directories.
(logname invocation, users invocation, who invocation):
The utmp and wtmp file names vary from system to system.
C_LCASE, C_UCASE, C_SWAB, C_NOERROR, C_NOTRUNC, C_SYNC, C_TWOBUFS,
C_NOCREAT, C_EXCL, C_FDATASYNC, C_FSYNC): Now constants, not
macros.
(STATUS_NOXFER, statuses): New constants.
(usage, print_stats, scanargs): Add support for status=noxfer.
(usage): Update status output to match new behavior.
(print_stats): Always output complete byte count.
Put space between numbers and units, as SI requires.
Use ngettext so that i18n can use plurals for "byte" and "second".
Don't multiply by 1e-9 (inexact); divide by 1e9 (which is exact).
(iflag_error_msgid, oflag_error_msgid): Remove; replace uses by
the string.
(w_bytes, start_time): New vars.
(usage): Document new I/O statistics output
(print_stats): Output new I/O statistics.
(cleanup): Do statistics after closing stdin and stdout, so that
the times are more accurate.
(write_output, dd_copy): Count output bytes.
(main): Get initial value of clock.
on two lines, one for `-n STRING' and one for `STRING' so that
help2man properly escapes the `-'. Otherwise, the hyphen is
rendered inappropriately in UTF-8 locales.
closed initially, since some programs don't write to stdout in the
normal course of operation (other than --version and --help), and
we don't want this function to make e.g. `cp 1 2 >&-' fail.
But do fail if it was closed and someone has tried to write to it.
E.g., printf 'foo' >&-
(temptail): New variable, so that we can easily append to list.
(create_temp_file): Create new files at end of list, so that
searching the list has O(N**NMERGE) behavior instead of O(N**2).
(zaptemp): Update temptail if needed.
(mergefps, merge): Accept new arg that counts temp files, and keep it
up to date as we create and remove temporaries. This is for
efficiency, so that we don't call zaptemp so often.
All callers changed.
(sort): Don't create array in reverse order, since the list of
temporaries is now in the correct order.
(zaptemp): Protect against race condition: if 'sort' is
interrupted in the middle of zaptemp, it might unlink the
temporary file twice, and the second time this happens the file
might already have been created by some other process.
(create_temp_file): Use offsetof for clarity.
(die): Move it up earlier, to clean up the code a bit.
Paul Eggert
Jim Meyering