From: Yue Zhang <yue...@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 <yue...@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
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