[BusyBox] busybox 1.0, tar and hard links -- bug or feature?

[Jean Wolter]

Hello,

tar xf foo.tar doesn't handle hard links correctly. If it encounters a
hard link it creates a normal file.

In data_extract_all() busybox checks, whether it is a hard link or
not, but it does so only if CONFIG_CPIO is enabled. If I add a check
for CONFIG_TAR, busybox tar handles hard links correctly.

Is this a bug or a feature?

regards, 
Jean

PS: the diff:

--- data_extract_all.c	23 Aug 2003 09:31:45 -0000	1.1.1.1
+++ data_extract_all.c	8 Sep 2003 10:15:43 -0000
@@ -42,7 +42,7 @@
 	/* Create the filesystem entry */
 	switch(file_header->mode & S_IFMT) {
 		case S_IFREG: {
-#ifdef CONFIG_CPIO
+#if defined CONFIG_CPIO || defined CONFIG_TAR
 			if (file_header->link_name && file_header->size == 0) {
 				/* hard link */
 				res = link(file_header->link_name, file_header->name);