NAME

       CURLOPT_SSH_KNOWNHOSTS - filename holding the SSH known hosts

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_KNOWNHOSTS, char *fname);

DESCRIPTION

       Pass  a pointer to a null-terminated string holding the filename of the known_host file to
       use. The known_hosts file should use the OpenSSH file format as supported by  libssh2.  If
       this  file  is  specified,  libcurl only accepts connections with hosts that are known and
       present in that file, with a matching public key. Use CURLOPT_SSH_KEYFUNCTION(3) to  alter
       the default behavior on host and key matches and mismatches.

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

DEFAULT

       NULL

PROTOCOLS

       This functionality affects 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_KNOWNHOSTS,
                            "/home/clarkkent/.ssh/known_hosts");
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY

       Added in curl 7.19.6

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)