path = (char *)
odr_malloc(encode, strlen(hreq->path) + strlen(uri_args) + 4);
- sprintf(path, "%s?%s", hreq->path, uri_args);
+ sprintf(path, "%s%c%s", hreq->path, strchr(hreq->path, '?') ? '&' : '?',
+ uri_args);
hreq->path = path;
z_HTTP_header_add_content_type(encode, &hreq->headers,