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CURLOPT_PROXY_SSLCERT_BLOB(3)                         Library Functions Manual


NAME

       CURLOPT_PROXY_SSLCERT_BLOB - SSL proxy client certificate from memory
       blob


SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLCERT_BLOB,
                                 struct curl_blob *blob);


DESCRIPTION

       Pass a pointer to a curl_blob structure, which contains information
       (pointer and size) about a memory block with binary data of the
       certificate used to connect to the HTTPS proxy. The format must be
       "P12" on Secure Transport or Schannel. The format must be "P12" or
       "PEM" on OpenSSL. The string "P12" or "PEM" must be specified with
       CURLOPT_PROXY_SSLCERTTYPE(3).

       If the blob is initialized with the flags member of struct curl_blob
       set to CURL_BLOB_COPY, the application does not have to keep the buffer
       around after setting this.

       This option is an alternative to CURLOPT_PROXY_SSLCERT(3) which instead
       expects a filename as input.


DEFAULT

       NULL


PROTOCOLS

       This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS,
       POP3S, SMTPS etc.

       This option works only with the following TLS backends: OpenSSL,
       Schannel and Secure Transport


EXAMPLE


       extern char *certificateData; /* point to data */
       extern size_t filesize; /* size of the data */

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           struct curl_blob blob;
           blob.data = certificateData;
           blob.len = filesize;
           blob.flags = CURL_BLOB_COPY;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
           curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy");
           curl_easy_setopt(curl, CURLOPT_PROXY_SSLKEY, "key.pem");
           curl_easy_setopt(curl, CURLOPT_PROXY_KEYPASSWD, "s3cret");
           curl_easy_setopt(curl, CURLOPT_PROXY_SSLCERT_BLOB, &blob);
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }


AVAILABILITY

       Added in curl 7.71.0


RETURN VALUE

       curl_easy_setopt(3) returns a CURLcode indicating success or error.

       CURLE_OK (0) means everything was OK, non-zero means an error occurred,
       see libcurl-errors(3).


SEE ALSO

       CURLOPT_PROXY_SSLCERT(3), CURLOPT_PROXY_SSLCERTTYPE(3),
       CURLOPT_PROXY_SSLKEY(3), CURLOPT_SSLCERT_BLOB(3)

libcurl                           2025-02-08     CURLOPT_PROXY_SSLCERT_BLOB(3)

curl 8.12.0 - Generated Tue Feb 18 07:51:27 CST 2025
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