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* tests/extrac13.at: Don't assume that "diff -c" outputs nothing
when there are no differences. This is not true on Solaris,
where it outputs "No differences encounted".
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Several of the tests assumed that a newly created file cannot
have a time stamp dated in the future. This assumption is not
true when files are served by a remote host whose clock is
slightly in advance of ours. Fix the problems that I observed
when running "make check" a couple of times on such a server.
* tests/backup01.at: Use --warning=no-timestamp to suppress
clock-skew warnings.
* tests/chtype.at, tests/comprec.at, tests/exclude06.at:
* tests/extrac01.at, tests/extrac03.at, tests/extrac05.at:
* tests/extrac06.at, tests/extrac08.at, tests/extrac13.at:
* tests/extrac14.at, tests/incr01.at, tests/incr03.at, tests/link01.at:
* tests/multiv01.at, tests/multiv02.at, tests/multiv03.at:
* tests/pipe.at, tests/rename02.at, tests/rename03.at:
* tests/rename05.at, tests/same-order01.at, tests/same-order02.at:
* tests/sparse01.at:
Likewise.
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This closes another race condition, that occurs when overwriting a
symlink with a regular file.
* NEWS (--dereference consistency): New section.
* doc/tar.texi (Option Summary): Describe new --deference behavior.
(dereference): Likewise. Remove discussion that I didn't follow,
even before --dereference was changed.
* src/common.h (deref_stat, set_file_atime): Adjust signatures.
* src/compare.c (diff_file, diff_multivol): Respect open_read_flags
instead of rolling our own flags. This implements the new behavior
for --dereference.
(diff_file, diff_dumpdir): Likewise, for fstatat_flags.
* src/create.c: Adjust to set_file_atime signature change.
* src/extract.c (mark_after_links, file_newer_p, extract_dir):
Likewise.
* src/incremen.c (try_purge_directory): Likewise.
* src/misc.c (maybe_backup_file): Likewise.
* src/extract.c (file_newer_p): New arg STP. All callers changed.
(maybe_recoverable): New arg REGULAR. All callers changed.
Handle the case of overwriting a symlink with a regular file,
when --overwrite is specified but --dereference is not.
(open_output_file): Add O_CLOEXEC, O_NOCTTY, O_NONBLOCK for
consistency with file creation. Add O_NOFOLLOW if
overwriting_old_files && ! dereference_option.
* src/incremen.c (update_parent_directory): Use fstat, not fstatat;
there's less to go wrong.
* src/misc.c (deref_stat): Remove DEREF arg. All callers changed.
Instead, use fstatat_flags.
(set_file_atime): Remove ATFLAG arg. All callers changed.
Instead, use fstatat_flags.
* src/names.c, src/update.c: Adjust to deref_stat signature change.
* src/tar.c (get_date_or_file): Use stat, not deref_stat, as this
is not a file to be archived.
* tests/Makefile.am (TESTSUITE_AT): Add extrac13.at.
* tests/extrac13.at: New file.
* tests/testsuite.at: Include it.
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