+static ip_address bind_address;
+static int bind_address_resolved;
+
+static void
+resolve_bind_address (void)
+{
+ struct address_list *al;
+
+ if (bind_address_resolved || opt.bind_address == NULL)
+ /* Nothing to do. */
+ return;
+
+ al = lookup_host (opt.bind_address, 1);
+ if (!al)
+ {
+ logprintf (LOG_NOTQUIET,
+ _("Unable to convert `%s' to a bind address. Reverting to ANY.\n"),
+ opt.bind_address);
+ return;
+ }
+
+ address_list_copy_one (al, 0, &bind_address);
+ address_list_release (al);
+ bind_address_resolved = 1;
+}
+\f
+struct cwt_context {
+ int fd;
+ const struct sockaddr *addr;
+ int addrlen;
+ int result;
+};
+
+static void
+connect_with_timeout_callback (void *arg)
+{
+ struct cwt_context *ctx = (struct cwt_context *)arg;
+ ctx->result = connect (ctx->fd, ctx->addr, ctx->addrlen);
+}
+
+/* Like connect, but specifies a timeout. If connecting takes longer
+ than TIMEOUT seconds, -1 is returned and errno is set to
+ ETIMEDOUT. */
+
+static int
+connect_with_timeout (int fd, const struct sockaddr *addr, int addrlen,
+ int timeout)
+{
+ struct cwt_context ctx;
+ ctx.fd = fd;
+ ctx.addr = addr;
+ ctx.addrlen = addrlen;
+
+ if (run_with_timeout (timeout, connect_with_timeout_callback, &ctx))
+ {
+ errno = ETIMEDOUT;
+ return -1;
+ }
+ if (ctx.result == -1 && errno == EINTR)
+ errno = ETIMEDOUT;
+ return ctx.result;
+}
+\f