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Re: SSL connect error
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From: Cristian Rodríguez via curl-library <curl-library_at_lists.haxx.se>
Date: Thu, 9 Dec 2021 09:53:31 -0300
On Wed, Dec 8, 2021 at 10:54 AM Thierry Huchard via curl-library
<curl-library_at_lists.haxx.se> wrote:
>
> Hello to all !
> I am the maintainer of the sane-escl backend, I have an error on an
> https access on a canon XK90 scanner.
> If you have an idea of why and how to bypass it, I'm interested!
>
> curl_handle = curl_easy_init();
> curl_easy_setopt(curl_handle, CURLOPT_URL,
> "https://192.168.yyy.xxx:443/eSCL/ScannerCapabilities");
> curl_easy_setopt(curl_handle, CURLOPT_SSL_VERIFYPEER, 0L);
> curl_easy_setopt(curl_handle, CURLOPT_SSL_VERIFYHOST, 0L);
> curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION,
> memory_callback_c);
> curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)var);
> curl_easy_setopt(curl_handle, CURLOPT_HEADERFUNCTION,
> header_callback);
> curl_easy_setopt(curl_handle, CURLOPT_HEADERDATA, (void *)header);
> curl_easy_setopt(curl_handle, CURLOPT_FOLLOWLOCATION, 1L);
> curl_easy_setopt(curl_handle, CURLOPT_MAXREDIRS, 3L);
> CURLcode res = curl_easy_perform(curl_handle);
> if (res != CURLE_OK) {
> printf("respond: %s\n", curl_easy_strerror(res)); // respond:
> SSL connect error
> exit--1);
> }
>
> I don't have access to the device!
Well.. This almost always happen when openssl refuses to talk to the
target system because it uses unacceptable ancient ciphersuites or
TLS versions. You need a new scanner. :-(
Date: Thu, 9 Dec 2021 09:53:31 -0300
On Wed, Dec 8, 2021 at 10:54 AM Thierry Huchard via curl-library
<curl-library_at_lists.haxx.se> wrote:
>
> Hello to all !
> I am the maintainer of the sane-escl backend, I have an error on an
> https access on a canon XK90 scanner.
> If you have an idea of why and how to bypass it, I'm interested!
>
> curl_handle = curl_easy_init();
> curl_easy_setopt(curl_handle, CURLOPT_URL,
> "https://192.168.yyy.xxx:443/eSCL/ScannerCapabilities");
> curl_easy_setopt(curl_handle, CURLOPT_SSL_VERIFYPEER, 0L);
> curl_easy_setopt(curl_handle, CURLOPT_SSL_VERIFYHOST, 0L);
> curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION,
> memory_callback_c);
> curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)var);
> curl_easy_setopt(curl_handle, CURLOPT_HEADERFUNCTION,
> header_callback);
> curl_easy_setopt(curl_handle, CURLOPT_HEADERDATA, (void *)header);
> curl_easy_setopt(curl_handle, CURLOPT_FOLLOWLOCATION, 1L);
> curl_easy_setopt(curl_handle, CURLOPT_MAXREDIRS, 3L);
> CURLcode res = curl_easy_perform(curl_handle);
> if (res != CURLE_OK) {
> printf("respond: %s\n", curl_easy_strerror(res)); // respond:
> SSL connect error
> exit--1);
> }
>
> I don't have access to the device!
Well.. This almost always happen when openssl refuses to talk to the
target system because it uses unacceptable ancient ciphersuites or
TLS versions. You need a new scanner. :-(
-- Unsubscribe: https://lists.haxx.se/listinfo/curl-library Etiquette: https://curl.haxx.se/mail/etiquette.htmlReceived on 2021-12-09