Commit e013ac31 authored Jun 27, 2014 by Yue Zhang Committed by Greg Kroah-Hartman Jul 09, 2014

Tools: hv: fix file overwriting of hv_fcopy_daemon



hv_fcopy_daemon fails to overwrite a file if the target file already
exits.

Add O_TRUNC flag on opening.

Signed-off-by: Yue Zhang <yuezha@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent da86920f

tools/hv/hv_fcopy_daemon.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -88,7 +88,8 @@ static int hv_start_fcopy(struct hv_start_fcopy *smsg)
		}
		}

		target_fd = open(target_fname, O_RDWR \| O_CREAT \| O_CLOEXEC, 0744);
		target_fd = open(target_fname,
		O_RDWR \| O_CREAT \| O_TRUNC \| O_CLOEXEC, 0744);
		if (target_fd == -1) {
		syslog(LOG_INFO, "Open Failed: %s", strerror(errno));
		goto done;