after handling them.
(list_archive): Use consistent message for unexpected EOF.
Use error message functions to report errors consistently.
(read_header): Use xalloc_die to report memory exhaustion.
Use consistent message for unexpected EOF.
(decode_mode): Remove; moved to misc.c.
(skip_file): Use consistent message for unexpected EOF.
(skip_extended_headers): Likewise.
All callers changed.
(deal_with_sparse): Don't keep reading after read errors.
(finish_sparse_file): Just abort if there is an internal error.
Use error message functions to report errors consistently.
(dump_file): Fix typo: stat_warn and stat_error were interchanged.
Quote file names with colons if possible.
Don't restore access times on directories during incremental dumps
until after dealing with the directory.
If ignoring failed reads, count closedir errors as warnings, not errors.
Fix buffer overrun problem when dumping sparse files.
If ignoring failed reads, count read errors as warnings, not errors.
Use error message functions to report errors consistently.
If ignoring failed reads, count unknown files as warnings, not errors.
(set_mode): Use Use error message functions to report errors consistently.
(set_stat): Likewise.
(repair_delayed_set_stat): Quote file names with colons if possible.
(prepare_to_extract): Don't complain if we can't remove ".".
(extract_sparse_file): Use consistent message for unexpected EOF.
Use error message functions to report errors consistently.
(extract_archive): Use consistent message for unexpected EOF.
Use error message functions to report errors consistently.
Quote file names with colons if possible.
(apply_delayed_set_stat): New function.
(apply_nonancestor_delayed_set_stat): Renamed from apply_delayed_set_stat.
Don't remove head if it doesn't apply.
(fatal_exit): Invoke apply_delayed_set_stat with no args.
(xclose): Use close_error.
(xdup2): Regularize messages with rest of tar.
(archive_write_error): Use write_fatal_details.
(flush_read): Don't read past EOF.
(flush_archive, close_archive, new_volume): Use close_warn.
(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.
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.
(base_64_digits): Moved here from create.c.
(base64_map): Use UCHAR_MAX for size, not less-clear (unsigned char) -1.
(read_and): Don't get time from header unless we need it now;
as getting time can cause duplicate diagnostics if bogus.
Remove "Hmm, " from diagnostic.
Use "Skipping to next header" uniformly.
(from_header): Renamed from from_chars. All uses changed.
Allow different forms for unportable 2's complement numbers.
Don't check for extended forms when parsing checksums.
Parse base-256 output.
(gid_from_header): Renamed from gid_from_chars. All uses changed.
(major_from_header): Renamed from major_from_chars. All uses changed.
(minor_from_header): Renamed from minor_from_chars. All uses changed.
(mode_from_header): Renamed from mode_from_chars. All uses changed.
(off_from_header): Renamed from off_from_chars. All uses changed.
(size_from_header): Renamed from size_from_chars. All uses changed.
(time_from_header): Renamed from time_from_chars. All uses changed.
Warn about future timestamps.
(uid_from_header): Renamed from uid_from_chars. All uses changed.
(uintmax_from_header): Renamed from uintmax_from_chars. All uses changed.
(tartime): New function, incorporating isotime.
(isotime): Delete.
(print_header): Use tartime.
(base_64_digits): Move to list.c.
(base_8_digits): Remove.
(to_octal): New function, with some of old contents of to_base.
(to_base): Remove.
(to_base256): New function.
(to_chars): Use base 256, not base 64, for huge values.
(mode_to_chars): Don't use two's complement in GNU format or POSIX format.
(dump_file): Interchange last two arguments. If TOP_LEVEL is negative,
it means we have an incremental dump where we don't know whether this
is a top-level call.
Use deref_stat instead of statx / stat / lstat.
Cast result of alloca.
Check for dates if 0 < top_level, not if listed_incremental_option.
Move multiple-link check after directory check.
Do not dump avoided names.
Dump hard links to symbolic names as links, not as separate symbolic links.
start_header cannot return a null pointer, so don't test for it.
Likewise for find_next_block.
(time): No need to declare.
(now): Remove variable.
(extr_init): Don't initialize `now'.
Increment same_permissions_option and same_owner_option if we_are_root
is nonzero; this supports the new --no-same-owner option.
(set_stat): Use start_time instead of `now'.
(print_total_written): Also print human-readable byte count, and bytes/s.
(open_archive, flush_write): Use start_time, not current time.
(flush_read): Report about garbage bytes ignored at end of archive,
but act on non-garbage bytes (instead of ignoring them).
(new_volume): Use WARN for warnings.
(name_gather): Handle trailing -C option correctly.
(addname): use memcpy, not strncpy, to copy a string of known length.
(name_match): Handle trailing -C option correctly.
Propagate -C option to following files.
Simplify matching code.
(name_scan): Simplify matching code.
(long_options, usage, main): -y is now -I (for --bzip).
(usage): Fix misspelling.
(OPTION_STRING): -y is now -I.
(decode_options): Use -1, not EOF, for getopt_long result.
Fix typo when invoking xstrtoumax: look for LONGINT_OK, not LONG_MAX.
Handle operands after any "--" argument.
(main): Report any output errors.
