pull the timeout from the context, that's what it is there for.

lib/lwres/context.c

@@ -198,7 +198,7 @@ lwres_context_sendrecv(lwres_context_t *ctx,
 	fd_set readfds;
 	struct timeval timeout;
 
-	timeout.tv_sec = LWRES_DEFAULT_TIMEOUT;
+	timeout.tv_sec = ctx->timeout;
 	timeout.tv_usec = 0;
 
 	ret = sendto(ctx->sock, sendbase, sendlen, 0, NULL, 0);

lib/lwres/context_p.h

@@ -25,7 +25,7 @@
 #define CTXMALLOC(len)		ctx->malloc(ctx->arg, (len))
 #define CTXFREE(addr, len)	ctx->free(ctx->arg, (addr), (len))
 
-#define LWRES_DEFAULT_TIMEOUT	10	/* 10 seconds for a reply */
+#define LWRES_DEFAULT_TIMEOUT	20	/* 20 seconds for a reply */
 
 /*
  * Not all the attributes here are actually settable by the application at