/* set specific ciphers */  
  const char * mycipher = "RSA+RC4+MD5"; // ok
  // const char * mycipher = "RC4-SHA"; // ok
  // const char * mycipher = "EDH-DSS-AES256-SHA:AES256-SHA:DES-CBC3-SHA:RC4-MD5"; // ok
  int ret = SSL_CTX_set_cipher_list(ctx, mycipher);
  if(ret==0)
    printf("Warning: cipher %s not supported!\n", mycipher);