Function fcntl

co_hook_sys_call.cpp:616–703

int fcntl(int fildes, int cmd, ...)
{
	HOOK_SYS_FUNC( fcntl );

	if( fildes < 0 )
	{
		return __LINE__;
	}

	va_list arg_list;
	va_start( arg_list,cmd );

	int ret = -1;
	rpchook_t *lp = get_by_fd( fildes );
	switch( cmd )
	{
		case F_DUPFD:
		{
			int param = va_arg(arg_list,int);
			ret = g_sys_fcntl_func( fildes,cmd,param );
			break;
		}
		case F_GETFD:
		{
			ret = g_sys_fcntl_func( fildes,cmd );
			break;
		}
		case F_SETFD:
		{
			int param = va_arg(arg_list,int);
			ret = g_sys_fcntl_func( fildes,cmd,param );
			break;
		}
		case F_GETFL:
		{
			ret = g_sys_fcntl_func( fildes,cmd );
			break;
		}
		case F_SETFL:
		{
			int param = va_arg(arg_list,int);
			int flag = param;
			if( co_is_enable_sys_hook() && lp )
			{
				flag |= O_NONBLOCK;
			}
			ret = g_sys_fcntl_func( fildes,cmd,flag );
			if( 0 == ret && lp )
			{
				lp->user_flag = param;
			}
			break;
		}
		case F_GETOWN:
		{
			ret = g_sys_fcntl_func( fildes,cmd );
			break;
		}