CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256(3)                 Library Functions Manual

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 pointer pointing to a string containing a Base64-encoded
       SHA256 hash of the remote host's public key. The transfer fails if the
       given hash does not match the hash the remote host provides.

DEFAULT
       NULL

PROTOCOLS
       SCP and SFTP

EXAMPLE
       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com/file");
           curl_easy_setopt(curl, CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256,
                            "NDVkMTQxMGQ1ODdmMjQ3MjczYjAyOTY5MmRkMjVmNDQ=");
           res = 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_AUTH_TYPES(3), CURLOPT_SSH_HOST_PUBLIC_KEY_MD5(3),
       CURLOPT_SSH_PUBLIC_KEYFILE(3)

libcurl                          April 26 2024
                                         CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256(3)