CURLOPT_PROXY_SSLKEY_BLOB - private key for proxy cert from memory blob
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLKEY_BLOB, struct curl_blob *blob);
curl_easy_setopt options                          CURLOPT_PROXY_SSLKEY_BLOB(3)
NAME
       CURLOPT_PROXY_SSLKEY_BLOB - private key for proxy cert from memory blob
SYNOPSIS
       #include <curl/curl.h>
       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLKEY_BLOB,
                                 struct curl_blob *blob);
DESCRIPTION
       Pass  a  pointer  to  a  curl_blob  structure that contains information
       (pointer and size) about the private key for connecting  to  the  HTTPS
       proxy.  Compatible with OpenSSL. The format (like "PEM") must be speci-
       fied with CURLOPT_PROXY_SSLKEYTYPE(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.
DEFAULT
       NULL
PROTOCOLS
       All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         struct curl_blob blob;
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
         curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy");
         blob.data = certificateData;
         blob.len = filesize;
         blob.flags = CURL_BLOB_COPY;
         curl_easy_setopt(curl, CURLOPT_PROXY_SSLCERT_BLOB, &blob);
         curl_easy_setopt(curl, CURLOPT_PROXY_SSLCERTTYPE, "PEM");
         blob.data = privateKeyData;
         blob.len = privateKeySize;
         curl_easy_setopt(curl, CURLOPT_PROXY_SSLKEY_BLOB, &blob);
         curl_easy_setopt(curl, CURLOPT_PROXY_KEYPASSWD, "s3cret");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }
AVAILABILITY
       Added in 7.71.0. This option is supported by the OpenSSL backends.
RETURN VALUE
       Returns CURLE_OK  if  TLS  enabled,  CURLE_UNKNOWN_OPTION  if  not,  or
       CURLE_OUT_OF_MEMORY if there was insufficient heap space.
ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:
       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | web/curl         |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+
SEE ALSO
       CURLOPT_SSLKEYTYPE(3), CURLOPT_SSLKEY(3),
NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.
       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source       was       downloaded      from       https://curl.se/down-
       load/curl-7.83.1.tar.bz2.
       Further information about this software can be found on the open source
       community website at http://curl.haxx.se/.
libcurl 7.83.1                 October 25, 2021
                                                  CURLOPT_PROXY_SSLKEY_BLOB(3)