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* [PATCH] Tools: hv: fix file overwriting of hv_fcopy_daemon
@ 2014-06-28  0:16 Yue Zhang
  2014-06-27 23:20 ` KY Srinivasan
  2014-06-27 23:45 ` Greg KH
  0 siblings, 2 replies; 7+ messages in thread
From: Yue Zhang @ 2014-06-28  0:16 UTC (permalink / raw)
  To: kys, haiyangz, driverdev-devel, linux-kernel, olaf, jasowang, apw
  Cc: decui, huishao

From: Yue Zhang <yuezha@microsoft.com>

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

Add O_TRUNC flag on opening.

MS-TFS: 341345

Signed-off-by: Yue Zhang <yuezha@microsoft.com>
---
 tools/hv/hv_fcopy_daemon.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/hv/hv_fcopy_daemon.c b/tools/hv/hv_fcopy_daemon.c
index fba1c75..2a86297 100644
--- a/tools/hv/hv_fcopy_daemon.c
+++ b/tools/hv/hv_fcopy_daemon.c
@@ -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;
-- 
1.9.1


^ permalink raw reply	[flat|nested] 7+ messages in thread
* [PATCH] Tools: hv: fix file overwriting of hv_fcopy_daemon
@ 2014-06-26 21:09 Yue Zhang
  2014-06-26 20:43 ` KY Srinivasan
  0 siblings, 1 reply; 7+ messages in thread
From: Yue Zhang @ 2014-06-26 21:09 UTC (permalink / raw)
  To: kys, haiyangz, driverdev-devel, linux-kernel, olaf, jasowang, apw
  Cc: decui, huishao

From: Yue Zhang <yuezha@microsoft.com>

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>
---
 tools/hv/hv_fcopy_daemon.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/hv/hv_fcopy_daemon.c b/tools/hv/hv_fcopy_daemon.c
index fba1c75..01eee6b 100644
--- a/tools/hv/hv_fcopy_daemon.c
+++ b/tools/hv/hv_fcopy_daemon.c
@@ -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;
-- 
1.9.1


^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2014-06-27 23:50 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-06-28  0:16 [PATCH] Tools: hv: fix file overwriting of hv_fcopy_daemon Yue Zhang
2014-06-27 23:20 ` KY Srinivasan
2014-06-27 23:45 ` Greg KH
2014-06-27 23:45   ` Yue Zhang (OSTC DEV)
  -- strict thread matches above, loose matches on Subject: below --
2014-06-26 21:09 Yue Zhang
2014-06-26 20:43 ` KY Srinivasan
2014-06-26 20:58   ` Yue Zhang (OSTC DEV)

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