The tar -x command in busybox does not restore the file mode correctly.
The reason is most probably this code in
archival/libunarachive/data_extract_all.c:
chmod(file_header->name, file_header->mode);
chown(file_header->name, file_header->uid, file_header->gid);
chown clears the set*id bits (on current versions of linux :). Flipping
the order around fixes the problem.
(tested with 1.00pre3 from cvs).
directory.
From http://www.gnu.org/manual/tar/html_node/tar_123.html
REGTYPE
AREGTYPE
These flags represent a regular file. In order to be compatible with
older versions of tar, a typeflag value of AREGTYPE should be silently
recognized as a regular file. New archives should be created using
REGTYPE. Also, for backward compatibility, tar treats a regular file
whose name ends with a slash as a directory.
Always preserve creation date
Disable the -p option its for modification date
Remove some cpio header debugging noise
Syncronise file listing behaviour with upstream.
If we read the contents of compressed files within the ar archive,
e.g. control.tar.gz, then file position gets all out of whack, so
it has to be reset before reading thenext header.
Hello all,
This patch adds more "Help" text to the config system. Almost
all applets now have a help entry. Also, I cleaned up the spacing of
the existing text so that things are consistent. This patch is against
this morning's CVS.
Thomas Cameron
CEI Systems, Inc.
bb-tar "cjf" does not create a valid tbz2-archive -- if fact the result is a
plain tar-file (no compression) -- but does not warn about the unrecognized
parameter combination "cj" (bb does not have bzip2-compression yet, right?).
to fix this I have added an error message stating this does not work.
He also reported
cosmetic: versose "-v" does not show any output when used with "create"
which I have now fixed as well.
-Erik
He took a look into the recent reports of tar problems, and found an obvious
typo in last_patch91 from vodz which converted tar to use bb_getopt_ulflags.
complain "unknown file type" if it tries to extract an oldgnu tar file
and TAR_FEATURE_OLDGNU_COMPATABILITY sint defined.
Print a warning if unisupported gnu extensions are encountered.
modified Kbuild system I put into uClibc. With this, there should be no more
need to modify Rules.mak since I've moved all the interesting options into the
config system. I think I've got everything updated, but you never know, I may
have made some mistakes, so watch closely.
-Erik
