> (relativize): New function, with much of old start_header's guts.
Handle filesystem prefixes.
(start_header): Use this new function.
(init_sparsearray): Don't bother to zero out the new array; it's not needed.
(deal_with_sparse): Fix array allocation bug.
(create_archive): Don't assume '/' is the only separator.
(dump_file): Likewise.
Don't worry about leading / in symlink targets.
(time): Remove decl; likewise.
(child_open_for_uncompress): Use new full_write semantics.
(flush_write): Use ISSLASH instead of testing for '/'.
(flush_read): Likewise.
(make_directories): Skip filesystem prefixes.
Don't assume '/' is the only separator.
(extract_sparse_file): Use new full_write semantics.
On write error, return instead of invoking skip_file.
Do not free sparsearray; caller does this now.
(apply_nonancestor_delayed_set_stat): Do not assume '/' is the only
separator.
(extract_archive): Don't assume file name lengths fit in int.
Report what got stripped from member name; it might be more than '/'.
Use new full_write semantics.
Do not pass redundant trailing "/" to mkdir, as POSIX does not allow
mkdir to ignore it.
Do not report mkdir error if old_files_option == KEEP_OLD_FILES.
(long_options): Have getopt set the --no-recursion flag.
(decode_options): Initialize recursion_option to FNM_LEADING_DIR.
Remove case for NO_RECURSE_OPTION.
following changes: Use @sc where appropriate. Document the ranges of
supported times more precisely. Add Eggert to getdate authors.
Document old Latin 12m/12pm tradition. Remove list of alphabetic time
zone names, as it wasn't correct and people shouldn't be relying on it
anyway. Relative items also account for non-DST adjustments. Fix
some misspellings.
(long_options): Now static.
(long_options, usage, decode_options): -j is now short for --bzip2,
and -I is now an alias for -T.
(decode_options, main): argv is not const pointer now.
(decode_options): Invoke prepend_default_options to support TAR_OPTIONS.
In diagnostic, mention the string that was the invalid blocking factor,
tape length, group, owner, or record size.
--delete is no longer incompatible with -f -, undoing 2000-01-07 change.
(main): Invoke extract_finish at end of extraction.
(gnu_list_name): Remove decl.
(struct link): Remove "next" member.
(linklist): Remove.
(start_header): Say "leading `FOO'" rather than "`FOO' prefix" for consistency
with other diagnostics.
(deal_with_sparse): Check for I/O error when closing the file.
(create_archive):
Do not allocate an array of size PATH_MAX, as PATH_MAX might be (size_t) -1.
Instead, allocate an array with the size that's needed.
(hash_link, compare_links): New functions.
(dump_file): Do not exhaust open file descriptors when descending deeply
into a directory, by using savedir rather than opendir/readdir.
Do not zero-fill the name buffer unnecessarily.
Hash the set of links already created, instead of using a linked list.
Fix some bugs in outputting sparse files which caused the sparse tables
to be incorrect.
When a file unexpectedly shrinks, output zeros rather than garbage.
Do not allocate an array of size PATH_MAX, as PATH_MAX might be (size_t) -1.
Instead, allocate an array with the size that's needed.
"Overwrite Old Files", and revamp that section to make it easier to
follow. "tar" -> "GNU tar" where appropriate. Migrate getdate
documentation into getdate.texi. Fix several minor typos. Describe
TAR_OPTIONS. Describe incompatibility between incremental backups and
--atime-preserve. Describe incompatibility between --verify and other
options. Mention that tar normally removes symbolic links rather than
following them, when extracting a file of the same name.
(struct delayed_symlink): New type.
(delayed_symlink_head): New var.
(extr_init, fatal_exit):
Invoke extract_finish on fatal errors, not apply_delayed_set_stat.
(set_mode, set_stat): Pointer args are now const pointers.
(check_time): New function.
(set_stat): Warn if setting a file's timestamp to be the future.
(make_directories): Do not save and restore errno.
(maybe_recoverable): Set errno to ENOENT if we cannot make missing
intermediate directories.
(extract_archive):
Invoke apply_nonancestor_delayed_set_stat here, not in caller.
Extract potentially dangerous symbolic links more carefully, deferring their
creation until the end, and using a regular file placeholder in the meantime.
Do not remove trailing / and /. from file names.
Do not bother checking for ".." when checking whether a directory
loops back on itself, as loopbacks can occur with symlinks too.
Also, in that case, do not bother saving and restoring errno; just
set it to EEXIST.
(apply_nonancestor_delayed_set_stat): A prefix is a potential ancestor if
it ends in slash too (as well as ending in a char just before slash).
(apply_delayed_set_stat): Remove.
(apply_delayed_symlinks, extract_finish): New functions.
Do not invoke apply_nonancestor_delayed_set_stat;
DO_SOMETHING is now responsible for that.
Do not invoke apply_delayed_set_stat; our caller is now responsible for that.
(read_header): Use signed char instead of signed_char.
Prevent later references to current_header from
mistakenly treating it as an old GNU header.
(from_header): Quote invalid base-64 strings in diagnostics.
(time_from_header): Do not warn about future timestamps in archive;
check_time now does that.
(tartime): Fix off-by-one error when copying year if OLD_CTIME.
(print_header): Quote unknown file types.
(skip_member): New function, replacing skip_extended_headers and
now skipping the whole member instead of just the extended headers.
All callers changed. This makes the code handle extended headers
uniformly, and fixes some bugs.
(child_open_for_compress, child_open_for_uncompress, close_archive):
Propagate any failure of the compression process back to "tar".
(open_archive, flush_write, flush_read, close_archive):
Do not allocate an array of size PATH_MAX, as PATH_MAX might be (size_t) -1.
Instead, allocate an array with the size that's needed.
(open_archive): Don't bother checking S_ISCHR of /dev/null.
(backspace_output): Don't try to backspace past start of archive.
(close_archive): Remove special case for DELETE_SUBCOMMAND.
Include <hash.h>.
(getpwuid, getgrgid): Declare only if system headers don't.
(gid_to_gname): Don't invoke setgrent.
(namelist): Now static, not global.
(nametail): New var. All uses of namelast changed to use nametail,
with one extra level of indirection.
(name_gather): Use memcpy instead of strncpy + assignment of NUL.
(name_match): Set nametail too, when setting namelist to null.
(add_hierarchy_to_namelist): Change type of dir arg from char * to
struct name *, so that we don't have to look up the name again here.
Get change_dir from dir rather than as a separate arg. Add dirsize arg,
and pass it along to get_directory_contents. Remove unnecessary check
of directory type.
(new_name): Do not append a slash if PATH already ends in one.
(avoided_names, struct avoided_name): Remove.
(avoided_name_table): New var, replacing avoided_names.
(hash_avoided_name, compare_avoided_names): New function.
(add_avoided_name, is_avoided_name): Use hash table rather than linked list.
