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

       Returns  CURLE_OK  if  TLS enabled, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if
       there was insufficient heap space.

SEE ALSO

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