CURLOPT_SSLCERT_BLOB(3)    curl_easy_setopt options    CURLOPT_SSLCERT_BLOB(3)

NAME
       CURLOPT_SSLCERT_BLOB - SSL client certificate from memory blob

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLCERT_BLOB, struct
       curl_blob *stblob);

DESCRIPTION
       Pass a pointer to a curl_blob structure, which contains (pointer and
       size) a client certificate. 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
       _SSLCERTTYPE&section=3">CURLOPT_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 _SSLCERT&section=3">CURLOPT_SSLCERT(3) which instead
       expects a file name as input.

DEFAULT
       NULL

PROTOCOLS
       All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         struct curl_blob stblob;
         stblob.data = certificateData;
         stblob.len = filesize;
         stblob.flags = CURL_BLOB_COPY;
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
         curl_easy_setopt(curl, CURLOPT_SSLCERT_BLOB, &stblob);
         curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, "P12");
         curl_easy_setopt(curl, CURLOPT_KEYPASSWD, "s3cret");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

AVAILABILITY
       Added in libcurl 7.71.0. This option is supported by the OpenSSL,
       Secure Transport and Schannel 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.

SEE ALSO
       CURLOPT_SSLCERTTYPE(3), CURLOPT_SSLKEY(3),

libcurl 7.77.0                 November 4, 2020        CURLOPT_SSLCERT_BLOB(3)