155 } opt;  variable
397     opt.server_name         = DFL_SERVER_NAME;  in main()
398     opt.server_port         = DFL_SERVER_PORT;  in main()
399     opt.debug_level         = DFL_DEBUG_LEVEL;  in main()
400     opt.authentication      = DFL_AUTHENTICATION;  in main()
401     opt.mode                = DFL_MODE;  in main()
402     opt.user_name           = DFL_USER_NAME;  in main()
403     opt.user_pwd            = DFL_USER_PWD;  in main()
404     opt.mail_from           = DFL_MAIL_FROM;  in main()
405     opt.mail_to             = DFL_MAIL_TO;  in main()
406     opt.ca_file             = DFL_CA_FILE;  in main()
407     opt.crt_file            = DFL_CRT_FILE;  in main()
408     opt.key_file            = DFL_KEY_FILE;  in main()
409     opt.force_ciphersuite[0]= DFL_FORCE_CIPHER;  in main()
419             opt.server_name = q;  in main()
421             opt.server_port = q;  in main()
424             opt.debug_level = atoi( q );  in main()
425             if( opt.debug_level < 0 || opt.debug_level > 65535 )  in main()
430             opt.authentication = atoi( q );  in main()
431             if( opt.authentication < 0 || opt.authentication > 1 )  in main()
436             opt.mode = atoi( q );  in main()
437             if( opt.mode < 0 || opt.mode > 1 )  in main()
441             opt.user_name = q;  in main()
443             opt.user_pwd = q;  in main()
445             opt.mail_from = q;  in main()
447             opt.mail_to = q;  in main()
449             opt.ca_file = q;  in main()
451             opt.crt_file = q;  in main()
453             opt.key_file = q;  in main()
456             opt.force_ciphersuite[0] = -1;  in main()
458             opt.force_ciphersuite[0] = mbedtls_ssl_get_ciphersuite_id( q );  in main()
460             if( opt.force_ciphersuite[0] <= 0 )  in main()
463             opt.force_ciphersuite[1] = 0;  in main()
493     if( strlen( opt.ca_file ) )  in main()
494         ret = mbedtls_x509_crt_parse_file( &cacert, opt.ca_file );  in main()
523     if( strlen( opt.crt_file ) )  in main()
524         ret = mbedtls_x509_crt_parse_file( &clicert, opt.crt_file );  in main()
543     if( strlen( opt.key_file ) )  in main()
544         ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, "" );  in main()
567     mbedtls_printf( "  . Connecting to tcp/%s/%s...", opt.server_name,  in main()
568                                                 opt.server_port );  in main()
571     if( ( ret = mbedtls_net_connect( &server_fd, opt.server_name,  in main()
572                              opt.server_port, MBEDTLS_NET_PROTO_TCP ) ) != 0 )  in main()
602     if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )  in main()
603         mbedtls_ssl_conf_ciphersuites( &conf, opt.force_ciphersuite );  in main()
618     if( ( ret = mbedtls_ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )  in main()
628     if( opt.mode == MODE_SSL_TLS )  in main()
704     if( opt.authentication )  in main()
719         mbedtls_printf( "  > Write username to server: %s", opt.user_name );  in main()
722 …      ret = mbedtls_base64_encode( base, sizeof( base ), &n, (const unsigned char *) opt.user_name,  in main()
723                              strlen( opt.user_name ) );  in main()
739         mbedtls_printf( "  > Write password to server: %s", opt.user_pwd );  in main()
742         ret = mbedtls_base64_encode( base, sizeof( base ), &n, (const unsigned char *) opt.user_pwd,  in main()
743                              strlen( opt.user_pwd ) );  in main()
764     len = sprintf( (char *) buf, "MAIL FROM:<%s>\r\n", opt.mail_from );  in main()
777     len = sprintf( (char *) buf, "RCPT TO:<%s>\r\n", opt.mail_to );  in main()
807             "Enjoy!", opt.mail_from );  in main()