[Bug 205180] bsdtar does not restore group with -p
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bugzilla-noreply at freebsd.org
Thu Dec 10 09:16:54 UTC 2015
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205180
Bug ID: 205180
Summary: bsdtar does not restore group with -p
Product: Base System
Version: 9.3-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: bin
Assignee: freebsd-bugs at FreeBSD.org
Reporter: andre at fbsd.ata.myota.org
man bsdtar says:
-p, --insecure, --preserve-permissions
(x mode only) Preserve file permissions. Attempt to restore the
full permissions, including owner, file modes, file flags and
ACLs, if available, for each item extracted from the archive.
This is the default, if tar is being run by root and can be over-
riden by also specifying --no-same-owner and
--no-same-permissions.
This description of -p makes one think that it does for
ordinary user the same as for root. But if I (as ordinary--same-owner
user) extract an archive with -xpf groups won't get restored.
They get restored with --same-owner.
IMHO -p should actually include --same-owner, the fix would be
--- bsdtar.c.ORI 2012-09-24 18:09:20.000000000 +0200
+++ bsdtar.c 2015-12-10 10:14:27.085470000 +0100
@@ -438,6 +438,7 @@
bsdtar->option_absolute_paths = 1;
break;
case 'p': /* GNU tar, star */
+ bsdtar->extract_flags |= ARCHIVE_EXTRACT_OWNER;
bsdtar->extract_flags |= ARCHIVE_EXTRACT_PERM;
bsdtar->extract_flags |= ARCHIVE_EXTRACT_ACL;
bsdtar->extract_flags |= ARCHIVE_EXTRACT_XATTR;
If not, the manpage should be corrected.
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