#lang racket (require net/url net/url-connect openssl) (module+ main (parameterize ([current-https-protocol (ssl-make-client-context)]) (ssl-set-verify! (current-https-protocol) #t) ;; When this is #f, we correctly get an exception: ;; error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (when #t (ssl-load-verify-source! (current-https-protocol) '(directory ;; This location works on Debian 6; ;; adjust as needed for your platform. "/etc/ssl/certs" ))) (for ([l (in-port read-line (get-pure-port (string->url "https://www.google.com/")))]) (displayln l))))