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| author | Yue Zhang <yuezha@microsoft.com> | 2014-06-27 18:19:48 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-09 14:21:26 -0700 |
| commit | e013ac312c79379b26cf29012cfbb37c68f79283 (patch) | |
| tree | 684ca9c3ada56901c9c8756cce25a6353045873f /tools/hv | |
| parent | da86920f4a193c8d55cfcb006e2e74b4bfab21d0 (diff) | |
| download | lwn-e013ac312c79379b26cf29012cfbb37c68f79283.tar.gz lwn-e013ac312c79379b26cf29012cfbb37c68f79283.zip | |
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>
Diffstat (limited to 'tools/hv')
| -rw-r--r-- | tools/hv/hv_fcopy_daemon.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/hv/hv_fcopy_daemon.c b/tools/hv/hv_fcopy_daemon.c index fba1c75aa484..8f96b3ee0724 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; |