From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 11 Aug 2004 17:19:25 +0000 (+0000)
Subject: (copy_internal): When preserving links, unlink
X-Git-Tag: v5.3.0~800
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=367719ba5f1dbd5e2f7fa2466c441f23f66a7c9e;p=thirdparty%2Fcoreutils.git

(copy_internal): When preserving links, unlink
a destination with link count greater than one.  This is so
that commands like "cp -a" don't get confused when copying into
a destination that already contains many hard links.
---

diff --git a/src/copy.c b/src/copy.c
index 1253035570..61c74c383e 100644
--- a/src/copy.c
+++ b/src/copy.c
@@ -1079,6 +1079,7 @@ copy_internal (const char *src_path, const char *dst_path,
 	    }
 	  else if (! S_ISDIR (dst_sb.st_mode)
 		   && (x->unlink_dest_before_opening
+		       || (x->preserve_links && 1 < dst_sb.st_nlink)
 		       || (x->dereference == DEREF_NEVER
 			   && ! S_ISREG (src_sb.st_mode))))
 	    {