Commit 4833d9f4 authored Sep 28, 2009 by Tom Zhu Committed by San Mehat Sep 30, 2009

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>

parent 04ea5b97

init/builtins.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -445,7 +445,7 @@ int do_copy(int nargs, char **args)
		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)))