... GNU tar(1) implied the
-p option for root, but BSD tar(1) doesn't do that.
Hmmm... This might actually be considered a bsdtar bug.
I'll look into it.
That behavior of BSD tar(1) surprised me, to be honest.
It's a trivial fix; there's already a check for whether
tar is being run by root. If so, it sets _EXTRACT_OWNER
to restore the owner. I just need to fill in the flags
associated with -p as well.
One problem that I don't see documented in any GNU tar
docs I can find: Is there a way to suppress this behavior
for root in GNU tar?
Tim Kientzle
Index: bsdtar.c
===================================================================
RCS file: /home/ncvs/src/usr.bin/tar/bsdtar.c,v
retrieving revision 1.72
diff -u -r1.72 bsdtar.c
--- bsdtar.c 9 Jan 2007 08:12:17 -0000 1.72
+++ bsdtar.c 7 Mar 2007 04:12:14 -0000
@@ -233,8 +233,13 @@
bsdtar->extract_flags = ARCHIVE_EXTRACT_TIME;
/* Default for root user: preserve ownership on extract. */
- if (bsdtar->user_uid == 0)
+ if (bsdtar->user_uid == 0) {
bsdtar->extract_flags |= ARCHIVE_EXTRACT_OWNER;
+ bsdtar->extract_flags |= ARCHIVE_EXTRACT_PERM;
+ bsdtar->extract_flags |= ARCHIVE_EXTRACT_ACL;
+ bsdtar->extract_flags |= ARCHIVE_EXTRACT_XATTR;
+ bsdtar->extract_flags |= ARCHIVE_EXTRACT_FFLAGS;
+ }
/* Rewrite traditional-style tar arguments, if used. */
argv = rewrite_argv(bsdtar, &argc, argv, tar_opts);
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