+#ifdef HAVE_FCNTL
+ // If SOCK_CLOEXEC exists then we don't need to call the following
+ if (SOCK_CLOEXEC == 0)
+ {
+ if (FD_CLOEXEC)
+ {
+ int flags;
+ do
+ {
+ flags= fcntl(server->fd, F_GETFD, 0);
+ } while (flags == -1 and (errno == EINTR or errno == EAGAIN));
+
+ if (flags != -1)
+ {
+ int rval;
+ do
+ {
+ rval= fcntl (server->fd, F_SETFD, flags | FD_CLOEXEC);
+ } while (rval == -1 && (errno == EINTR or errno == EAGAIN));
+ // we currently ignore the case where rval is -1
+ }
+ }
+ }
+#endif
+