From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Fri, 24 Oct 2008 23:47:38 +0000 (-0000)
Subject: tar: fix bug 3844: non-root tar does not preserve perms
X-Git-Tag: 1_13_0~75
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=ebad0294c9ee27669a6e211fa5505987b92804f9;p=oweals%2Fbusybox.git

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

diff --git a/archival/tar.c b/archival/tar.c
index 45701c985..503db5f78 100644
--- 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