qga: use qga_open_cloexec() for safe_open_or_create()

The function takes care of setting CLOEXEC.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220525144140.591926-7-marcandre.lureau@redhat.com>

qga/commands-posix.c

@@ -27,6 +27,7 @@
 #include "qemu/cutils.h"
 #include "commands-common.h"
 #include "block/nvme.h"
+#include "cutils.h"
 
 #ifdef HAVE_UTMPX
 #include <utmpx.h>
@@ -370,10 +371,10 @@ safe_open_or_create(const char *path, const char *mode, Error **errp)
      * open() is decisive and its third argument is ignored, and the second
      * open() and the fchmod() are never called.
      */
-    fd = open(path, oflag | ((oflag & O_CREAT) ? O_EXCL : 0), 0);
+    fd = qga_open_cloexec(path, oflag | ((oflag & O_CREAT) ? O_EXCL : 0), 0);
     if (fd == -1 && errno == EEXIST) {
         oflag &= ~(unsigned)O_CREAT;
-        fd = open(path, oflag);
+        fd = qga_open_cloexec(path, oflag, 0);
     }
     if (fd == -1) {
         error_setg_errno(errp, errno,
@@ -382,8 +383,6 @@ safe_open_or_create(const char *path, const char *mode, Error **errp)
         goto end;
     }
 
-    qemu_set_cloexec(fd);
-
     if ((oflag & O_CREAT) && fchmod(fd, DEFAULT_NEW_FILE_MODE) == -1) {
         error_setg_errno(errp, errno, "failed to set permission "
                          "0%03o on new file '%s' (mode: '%s')",