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CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256(3)                                  libcurl


NAME

       CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 - SHA256 hash of SSH server public
       key


SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256,
                                 char *sha256);


DESCRIPTION

       Pass a char * pointing to a string containing a Base64-encoded SHA256
       hash of the remote host's public key.  The transfer will fail if the
       given hash does not match the hash the remote host provides.


DEFAULT

       NULL


PROTOCOLS

       SCP and SFTP


EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com/file");
         curl_easy_setopt(curl, CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256,
                          "NDVkMTQxMGQ1ODdmMjQ3MjczYjAyOTY5MmRkMjVmNDQ=");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }


AVAILABILITY

       Added in 7.80.0 Requires the libssh2 backend.


RETURN VALUE

       Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if
       not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.


SEE ALSO

       CURLOPT_SSH_PUBLIC_KEYFILE(3), CURLOPT_SSH_AUTH_TYPES(3),

ibcurl 8.1.2                    April 26, 2023
                                         CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256(3)

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