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CURLOPT_SSLCERT_BLOB(3)             libcurl            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 format must be "DER" or "PEM" on mbedTLS. The format must be
       specified with 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 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 7.71.0. This option is supported by the OpenSSL, Secure
       Transport, Schannel and mbedTLS (since 7.78.0) 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),

ibcurl 8.1.2                    April 26, 2023         CURLOPT_SSLCERT_BLOB(3)

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