(INPUT_BLOCK_SLOP, OUTPUT_BLOCK_SLOP): New macros.
(MAX_BLOCKSIZE): Now accepts an arg. All uses changed.
(page_size): New var.
(scanargs, skip, main): Use more-straightforward way to detect overflow.
(dd_copy): Use page_size rather than invoking getpagesize.
Use INPUT_BLOCK_SLOP, OUTPUT_BLOCK_SLOP.
(main): Set page_size.
Avoid a call to stat in the usual case where ftruncate succeeds.
skipped due to encountering EOF.
(dd_copy): If the file wasn't seekable and EOF was encountered,
write zeros past EOF until the desired offset is reached.
Now that close_stdout closes standard output unconditionally,
these workarounds for dd and cat are no longer necessary.
(close_stdout_wrapper): Remove function.
(main): Call atexit with close_stdout, instead.
(process_signals): Add forward decl.
(SA_NOCLDSTOP, sigprocmask, sigset_t) [!defined SA_NOCLDSTOP]:
New macros.
(siginterrupt) [! HAVE_SIGINTERRUPT]: New macro.
(SA_NODEFER) [!defined SA_NODEFER]: New macro.
(SA_RESETHAND) [!defined SA_RESETHAND]: New macro.
(caught_signals, interrupt_signal, info_signal_count, catch_siginfo):
New vars.
(usage): Mention -USR1 versus -INFO.
(cleanup): Don't invoke print_stats; the caller must do it now.
All callers changed.
(quit): Process signals just before exiting.
(interrupt_handler): Simply record the signal and return.
(siginfo_handler): Simply increment the signal counter and return.
(install_handler): Remove, replacing with:
(install_signal_handlers, process_signals, iread, iwrite):
New functions. All callers to safe_read and full_write replaced
by iread and iwrite. All callers to install_handler replaced by
install_handlers.
Do not include inttostr.h, no longer needed.
(print_stats, main): Rewrite and simplify formats to use PRIuMAX
instead of umaxtostr.
(print_stats): Work even in languages that have special
forms for two of things, for r_truncate and w_bytes. We can't
fix delta_s in this way, since ngettext doesn't support floating-point.
(main): Rewrite to avoid casts.
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.
(scanargs): Don't mess with argc, argv; getopt_long handles this now.
Say "operands" for operands, not "options".
(main): Use getopt_long, so that "dd --" works as POSIX requires.
(bit_count): Remove. All uses changed to....
(multiple_bits_set): New function.
(scanargs): Use it, and check separately for each set of
incompatible options, to improve diagnostics.
(MX): Remove.
(apply_translations): Move checks for incompatible options
to scanargs, so that they're done consistently.
apply_translations, char_is_saved, swab_buffer, skip_via_lseek):
Use bool for booleans.
(translate_buffer): Use to_uchar rather than a cast.
(swab_buffer, copy_simple, copy_with_unblock):
Use size_t for sizes.
<http://mail.gnu.org/archive/html/bug-coreutils/2003-08/msg00105.html>
where 'dd' created a file that was too large. The bug was that dd
assumed that the input file offset does not advance after a failed
read; but POSIX says that the input file offset is undefined after
a failed read.
(MAX_BLOCKSIZE): New macro.
(input_seekable, input_seek_errno, input_offset,
input_offset_overflow): New vars.
(scanargs): Reject block sizes greater than MAX_BLOCKSIZE.
(advance_input_offset): New function.
(skip_via_lseek): Set errno to zero when reporting our failure,
so that we don't report based on garbage errno.
(skip): If fdesc is standard input, advance the input offset.
Do not quit if reading, and if noerror was specified;
POSIX seems to require this.
If read fails on output file, report the earlier lseek failure
instead; this fixes a FIXME in dd_copy.
(advance_input_after_read_error): New function.
(dd_copy): Use it, instead of assuming that failed reads
do not advance the file pointer. Advance input offset
after nonfailed reads. Advance only a partial block if
the previous read (before the failed read) succeeded, and
do not generate an output block of zeros in this case.
(main): Determine initial input offset, seekability of input,
and error if it wasn't seekable.
and new dd options iflag= and oflag=.
(usage): Document.
(fdatasync) [!HAVE_FDATASYNC]: New macro.
(C_NOCREAT, C_EXCL, C_FDATASYNC, C_FSYNC): New macros.
(input_flags, output_flags): New vars.
(LONGEST_SYMBOL): New macro.
(struct symbol_value): Renamed from struct conversion. Members
symbol and value renamed from convname and conversion. The
symbol value is now an array instead of a pointer; this saves
a bit of space and time in practice. All uses changed.
(conversions): Add nocreat, excl, fdatasync, fsync. Now const.
(flags): New constant array.
(iflag_error_msgid, oflag_error_msgid): New constants.
(parse_symbols): Renamed from parse_conversion and generalized
to handle either conversion or flag symbols.
(scanargs): Adjust uses of parse_symbols accodingly. Add
support for iflag= and oflag=. Reject attempts to use
both excl and nocreat.
(set_fd_flags): New function.
(dd_copy): Just return X rather than calling quit (X), since our
caller invokes quit with the returned value. Add support for
fdatasync and fsync.
(main): Add support for iflags=, oflags=, and new conv= symbols.
(dd_copy): Exit with status EXIT_FAILURE, not 2, on errors.
(write_output, skip, dd_copy): Don't assume EXIT_FAILURE == 1,
as POSIX doesn't require it.
of 2003-09-19. Now, AUTHORS is a comma-separated list of strings.
Update the call to parse_long_options so that `AUTHORS, NULL' are the
last parameters.
* src/true.c (main): Append NULL to version_etc argument list.
* src/sys2.h (case_GETOPT_VERSION_CHAR): Likewise.
