tar: add TODO about a bug with non-writable directories on extract

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 5 insertions, 0 deletions

diff --git a/archival/libarchive/data_extract_all.c b/archival/libarchive/data_extract_all.c
index 3142405a3..049c2c156 100644
--- a/archival/libarchive/data_extract_all.c
+++ b/archival/libarchive/data_extract_all.c
@@ -159,6 +159,10 @@ void FAST_FUNC data_extract_all(archive_handle_t *archive_handle)
                 break;
         }
         case S_IFDIR:
+//TODO: this causes problems if tarball contains a r-xr-xr-x directory:
+// we create this directory, and then fail to create files inside it
+// (if tar xf isn't run as root).
+// GNU tar works around this by chmod-ing directories *after* all files are extracted.
                 res = mkdir(dst_name, file_header->mode);
                 if ((res != 0)
                  && (errno != EISDIR) /* btw, Linux doesn't return this */
diff --git a/scripts/bb_release b/scripts/bb_release
index 2e146bf84..545440d3a 100755
--- a/scripts/bb_release
+++ b/scripts/bb_release
@@ -8,6 +8,7 @@
 
 #svn co svn://busybox.net/trunk/busybox
 cd busybox || { echo "cd busybox failed"; exit 1; }
+chmod -Rc u+w,a+rX,go-w .
 make release || { echo "make release failed"; exit 1; }
 cd ..