1 files changed, 11 insertions, 2 deletions
diff --git a/doc/designs/ddd/ddd-01-conn-blocking.c b/doc/designs/ddd/ddd-01-conn-blocking.c
index 8ed79e5147..4dae5f48de 100644
--- a/doc/designs/ddd/ddd-01-conn-blocking.c
+++ b/doc/designs/ddd/ddd-01-conn-blocking.c
@@ -121,19 +121,28 @@ void teardown_ctx(SSL_CTX *ctx)
  */
 int main(int argc, char **argv)
 {
-    const char msg[] = "GET / HTTP/1.0\r\nHost: www.openssl.org\r\n\r\n";
+    static char msg[384], host_port[300];
     SSL_CTX *ctx = NULL;
     BIO *b = NULL;
     char buf[2048];
     int l, res = 1;
 
+    if (argc < 3) {
+        fprintf(stderr, "usage: %s host port\n", argv[0]);
+        goto fail;
+    }
+
+    snprintf(host_port, sizeof(host_port), "%s:%s\n", argv[1], argv[2]);
+    snprintf(msg, sizeof(msg),
+             "GET / HTTP/1.0\r\nHost: %s\r\n\r\n", argv[1]);
+
     ctx = create_ssl_ctx();
     if (ctx == NULL) {
         fprintf(stderr, "could not create context\n");
         goto fail;
     }
 
-    b = new_conn(ctx, "www.openssl.org:443");
+    b = new_conn(ctx, host_port);
     if (b == NULL) {
         fprintf(stderr, "could not create conn\n");
         goto fail;