commit 4833d9f4986d6dafacff841beb3bf93172c84bdc
author Tom Zhu <ling.zhu@motorola.com> Mon Sep 28 19:53:12 2009 -0500
committer San Mehat <san@google.com> Wed Sep 30 14:15:49 2009 -0700
tree df5438a49fdd55c2b9075b8e671ecf42f2062698
parent 04ea5b974d12753d9ceae280fea0037cae1ba192

init: builtins: trancate target file in do_copy

add O_TRUNC flag in open(), which will truncate the target file,
otherwise, copy will keep the old content of the target file.

Signed-off-by: Tom Zhu <ling.zhu@motorola.com>
Signed-off-by: San Mehat <san@google.com>

init/builtins.c

diff --git a/init/builtins.c b/init/builtins.c
index cc7c9d1..5a1b263 100644
--- a/init/builtins.c
+++ b/init/builtins.c
@@ -445,7 +445,7 @@
     if ((fd1 = open(args[1], O_RDONLY)) < 0) 
         goto out_err;
 
-    if ((fd2 = open(args[2], O_WRONLY|O_CREAT, 0660)) < 0)
+    if ((fd2 = open(args[2], O_WRONLY|O_CREAT|O_TRUNC, 0660)) < 0)
         goto out_err;
 
     if (!(buffer = malloc(info.st_size)))