tar: fix bug 3844: non-root tar does not preserve perms

diff --git a/archival/tar.c b/archival/tar.c
index 45701c985064b7322df44616009659174084a309..503db5f782bf63e60fa074b936ab27b2a5dbe963 100644 (file)
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -818,6 +818,10 @@ int tar_main(int argc UNUSED_PARAM, char **argv)
                             | ARCHIVE_PRESERVE_DATE
                             | ARCHIVE_EXTRACT_UNCONDITIONAL;
 
+       /* Apparently only root's tar preserves parms (see bug 3844) */
+       if (getuid() != 0)
+               tar_handle->ah_flags |= ARCHIVE_NOPRESERVE_PERM;
+
        /* Prepend '-' to the first argument if required */
        opt_complementary = "--:" // first arg is options
                "tt:vv:" // count -t,-v