Function negotiate_daemon_auth

compat.c:848–883

}

void negotiate_daemon_auth(int f_out, int am_client)
{
	char tmpbuf[MAX_NSTR_STRLEN];
	int save_am_server = am_server;
	int md4_is_old = 0;

	if (!am_client)
		am_server = 1;

	if (daemon_auth_choices)
		strlcpy(tmpbuf, daemon_auth_choices, MAX_NSTR_STRLEN);
	else {
		strlcpy(tmpbuf, protocol_version >= 30 ? "md5" : "md4", MAX_NSTR_STRLEN);
		md4_is_old = 1;
	}

	if (am_client) {
		recv_negotiate_str(-1, &valid_auth_checksums, tmpbuf, strlen(tmpbuf));
		if (DEBUG_GTE(NSTR, 1)) {
			rprintf(FINFO, "Client negotiated %s: %s\n", valid_auth_checksums.type,
				valid_auth_checksums.negotiated_nni->name);
		}
	} else {
		if (!parse_negotiate_str(&valid_auth_checksums, tmpbuf)) {
			get_default_nno_list(&valid_auth_checksums, tmpbuf, MAX_NSTR_STRLEN, '\0');
			io_printf(f_out, "@ERROR: your client does not support one of our daemon-auth checksums: %s\n",
				  tmpbuf);
			exit_cleanup(RERR_UNSUPPORTED);
		}
	}
	am_server = save_am_server;
	if (md4_is_old && valid_auth_checksums.negotiated_nni->num == CSUM_MD4) {
		valid_auth_checksums.negotiated_nni->num = CSUM_MD4_OLD;
		valid_auth_checksums.negotiated_nni->flags = 0;
	}
}

int get_subprotocol_version()
{