Function typeBuffer

src/common/call_service.cpp:621–716

typeBuffer @brief Prints data, returned by service, using outputFunction @param status @param buf @param offset @param uData @param outputFunction @param functionArg @param text **/

 **/
static int typeBuffer(ISC_STATUS* status, char* buf, int offset,
					   Auth::UserData& uData, Firebird::IListUsers* callback,
					   Firebird::string& text)
{
	const char* p = &buf[offset];

	// Sanity checks
	if (*p++ != isc_info_svc_get_users)
	{
	    status[0] = isc_arg_gds;
	    status[1] = isc_gsec_params_not_allowed;
		status[2] = isc_arg_end;
		return -1;
	}
	FB_SIZE_T loop = static_cast<FB_SIZE_T>(isc_vax_integer (p, sizeof (USHORT)));
	p += sizeof (USHORT);
    if (p[loop] != isc_info_end)
	{
	    status[0] = isc_arg_gds;
	    status[1] = isc_gsec_params_not_allowed;
		status[2] = isc_arg_end;
		return -1;
	}

	// No data - stop processing
	if (! loop)
	{
		return -1;
	}

	// Old data left - use them
	if (offset)
	{
		memmove(&buf[offset], p, loop + 1);
		p = buf;
		loop += offset;
		offset = 0;
	}

	while (*p != isc_info_end)
	{
		fb_assert(p[loop] == isc_info_end);
		try
		{
			switch (*p++)
			{
			case isc_spb_sec_username:
				if (uData.user.get()[0])
				{
					LocalStatus status;
					CheckStatusWrapper statusWrapper(&status);

					if (callback)
					{
						setAttr(&statusWrapper, &uData);
						check(&statusWrapper);
						callback->list(&statusWrapper, &uData);
						check(&statusWrapper);