(usage): Now has __attribute__ ((noreturn)).
(confirm): Report errno if we can't open tty.
(confirm, decode_options):
Quote arbitrary strings in diagnostics.
(OVERWRITE_OPTION): New constant.
(long_options, usage, decode_options): New --overwrite option.
(decode_options): --keep-old-files, --overwrite, and --unlink-first
are now mutually exclusive.
Don't assume that gettext preserves errno.
(main): Set default quoting style to escape_quoting_style.
Quote arbitrary strings in diagnostics.
(from_header): Use locale_quoting_style to quote diagnostics.
(print_header, print_for_mkdir): Quote with quotearg, not quote_copy_string.
(enum permstatus): New enum.
(struct delayed_set_stat): file_name is now at end of buffer, to avoid
two mallocs. New members file_name_len, invert_permissions, permstatus.
(extr_init): Remove hack that silently adjusted newdir_umask.
(set_mode, set_stat): New args invert_permissions, permstatus, typeflag.
Use these args to decide whether and how to set modes.
(set_mode, set_stat, prepare_to_extract, extract_sparse_file, extract_archive):
Don't assume that gettext preserves errno.
(set_stat): Remove arg symlink_flag; subsumed by typeflag.
(delay_set_stat, repair_delayed_set_stat): New functions.
(make_directories): Avoid mkdir where last part of path is "..".
Create a struct delayed_set_stat for each directory made.
(prepare_to_extract): Renamed from unlink_destination, and
return 0 immediately if to_stdout_option; all callers changed.
(maybe_recoverable): New parameter interdir_made.
Add support for --overwrite.
(extract_sparse_file, extract_archive):
Quote arbitrary strings in diagnostics.
(extract_archive): By default, warn about ".." in member names, and skip them.
Don't open files with O_NONBLOCK or O_APPEND.
Open with O_TRUNC only if --overwrite; otherwise, use O_EXCL to avoid
overwriting them. Pass only rwxrwxrwx permissions to `open' and `mkdir',
minus the current umask. Keep track of intermediate directories made,
to avoid looping when making x/../x when x doesn't exist; the
earlier code solved this in a different way that didn't fit well
into the new scheme. Don't extract permissions onto existing
directories unless --overwrite is given. Do not add -wx------
permissions to new directories permanently; just do it temporarily.
Remove no-longer-needed hack with MSDOS and directory time stamps.
(apply_delayed_set_stat): New argument specifies which directories to
fix statuses of. Do not wait until the end of extraction to fix
statuses; instead, fix a directory's status once we exit that directory.
This requires less memory and does the right thing in some cases
where the old method didn't.
(fatal_exit): New function.
(start_header): Use `member names' to refer to archive member names, not
`archive names'. Warn about `..' in member names.
(finish_sparse_file, dump_file):
Quote arbitrary strings in diagnostics.
(finish_sparse_file, dump_file):
Don't assume that gettext preserves errno.
(dump_file): Don't use `access' to determine whether a directory is readable;
this isn't reliable if tar is setuid. Use `opendir' instead.
Check for readdir and closedir failures.
Don't dump sockets as if they were fifos; just warn and skip.
archive_write_error, archive_read_error, flush_archive, close_archive,
init_volume_number, new_volume):
Don't assume that gettext preserves errno.
(xdup2): Don't report errno if dup returns an unexpected nonnegative value.
(open_archive): Reject multivolume verify attempts a bit earlier.
Rename local variable `access', in case it's defined by system header.
(open_archive, backspace_output): Use `Cannot' uniformly, instead of
`Could not' sometimes and `Cannot' others.
(open_archive, flush_read, flush_archive, close_archive, new_volume):
Quote arbitrary strings in diagnostics.
(read_error): Set archive to STDOUT_FILENO temporarily when writing
archive buffer.
(init_volume_number): Check for input and output errors in volno_file.
(new_volume): Use new fatal_exit function to exit, and new xfork
function to fork.
files. Instead, diagnose them a bit better.
Report that a file changed if its ctime changes; this is more
sensitive than mtime+size, and more accurate.
said should be there, but is absent. It was
probably removed between then and now.
Do not pass meaningless errno to ERROR when reporting that the
file changed as we read it.
Add --disable-largefile.
Remove old NeXT dirent problems, or AIX valloc problems.
Remove old union wait advice, and old %lld advice.
Remove advice about FreeBSD 2.1.7, ISC 4.1mu, Ultrix `make'.
Use chdir_do to change into directory.
Use deref_stat instead of stat.
Use add_avoided_name to mark names to be avoided; the old method of
setting a bit with the name caused all descendants of that name to
be avoided, in some circumstances.
(time): Declare if not defined.
(confirm): Don't read past EOF.
(long_options, usage): Add --no-same-owner, --no-same-permissions.
(main): Use clock_gettime if available.
(name_gather): Use chdir_arg to keep track of arguments to chdir.
(addname): Likewise.
(name_match): Use chdir_do to act on chdir args.
(merge_sort): Moved here from incremen.c.
(compare_names, add_hierarchy_to_namelist, collect_and_sort_names):
Likewise.
(name_expand): Remove.
(name_from_list): Skip fack names.
Use chdir_do to act on chdir args.
(struct avoided_name): New struct.
(avoided_names): New var.
(add_avoided_name, is_avoided_name): New functions.
Paul Eggert