NAME

       CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 - MD5 checksum of SSH server public key

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_HOST_PUBLIC_KEY_MD5,
                                 char *md5);

DESCRIPTION

       Pass  a char * pointing to a string containing 32 hexadecimal digits. The string should be
       the 128 bit MD5 checksum  of  the  remote  host's  public  key,  and  libcurl  aborts  the
       connection to the host unless the MD5 checksum match.

       MD5 is a weak algorithm. We strongly recommend using CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256(3)
       instead.

       The application does not have to keep the string around after setting this option.

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_MD5,
                            "afe17cd62a0f3b61f1ab9cb22ba269a7");
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY

       Added in 7.17.1

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_SHA256(3),
       CURLOPT_SSH_PUBLIC_KEYFILE(3), CURLOPT_SSH_KNOWNHOSTS(3)