gram.c

tinyos-2.x.rar

     `yyss': related to states,
     `yyvs': related to semantic values,
     `yyls': related to locations.

     Refer to the stacks thru separate pointers, to allow yyoverflow
     to reallocate them elsewhere.  */

  /* The state stack.  */
  yytype_int16 yyssa[YYINITDEPTH];
  yytype_int16 *yyss = yyssa;
  yytype_int16 *yyssp;

  /* The semantic value stack.  */
  YYSTYPE yyvsa[YYINITDEPTH];
  YYSTYPE *yyvs = yyvsa;
  YYSTYPE *yyvsp;



#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N))

  YYSIZE_T yystacksize = YYINITDEPTH;

  /* The variables used to return semantic value and location from the
     action routines.  */
  YYSTYPE yyval;


  /* The number of symbols on the RHS of the reduced rule.
     Keep to zero when no symbol should be popped.  */
  int yylen = 0;

  YYDPRINTF ((stderr, "Starting parse\n"));

  yystate = 0;
  yyerrstatus = 0;
  yynerrs = 0;
  yychar = YYEMPTY;		/* Cause a token to be read.  */

  /* Initialize stack pointers.
     Waste one element of value and location stack
     so that they stay on the same level as the state stack.
     The wasted elements are never initialized.  */

  yyssp = yyss;
  yyvsp = yyvs;

  goto yysetstate;

/*------------------------------------------------------------.
| yynewstate -- Push a new state, which is found in yystate.  |
`------------------------------------------------------------*/
 yynewstate:
  /* In all cases, when you get here, the value and location stacks
     have just been pushed.  So pushing a state here evens the stacks.  */
  yyssp++;

 yysetstate:
  *yyssp = yystate;

  if (yyss + yystacksize - 1 <= yyssp)
    {
      /* Get the current used size of the three stacks, in elements.  */
      YYSIZE_T yysize = yyssp - yyss + 1;

#ifdef yyoverflow
      {
	/* Give user a chance to reallocate the stack.  Use copies of
	   these so that the &'s don't force the real ones into
	   memory.  */
	YYSTYPE *yyvs1 = yyvs;
	yytype_int16 *yyss1 = yyss;


	/* Each stack pointer address is followed by the size of the
	   data in use in that stack, in bytes.  This used to be a
	   conditional around just the two extra args, but that might
	   be undefined if yyoverflow is a macro.  */
	yyoverflow (YY_("memory exhausted"),
		    &yyss1, yysize * sizeof (*yyssp),
		    &yyvs1, yysize * sizeof (*yyvsp),

		    &yystacksize);

	yyss = yyss1;
	yyvs = yyvs1;
      }
#else /* no yyoverflow */
# ifndef YYSTACK_RELOCATE
      goto yyexhaustedlab;
# else
      /* Extend the stack our own way.  */
      if (YYMAXDEPTH <= yystacksize)
	goto yyexhaustedlab;
      yystacksize *= 2;
      if (YYMAXDEPTH < yystacksize)
	yystacksize = YYMAXDEPTH;

      {
	yytype_int16 *yyss1 = yyss;
	union yyalloc *yyptr =
	  (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
	if (! yyptr)
	  goto yyexhaustedlab;
	YYSTACK_RELOCATE (yyss);
	YYSTACK_RELOCATE (yyvs);

#  undef YYSTACK_RELOCATE
	if (yyss1 != yyssa)
	  YYSTACK_FREE (yyss1);
      }
# endif
#endif /* no yyoverflow */

      yyssp = yyss + yysize - 1;
      yyvsp = yyvs + yysize - 1;


      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
		  (unsigned long int) yystacksize));

      if (yyss + yystacksize - 1 <= yyssp)
	YYABORT;
    }

  YYDPRINTF ((stderr, "Entering state %d\n", yystate));

  goto yybackup;

/*-----------.
| yybackup.  |
`-----------*/
yybackup:

  /* Do appropriate processing given the current state.  Read a
     look-ahead token if we need one and don't already have one.  */

  /* First try to decide what to do without reference to look-ahead token.  */
  yyn = yypact[yystate];
  if (yyn == YYPACT_NINF)
    goto yydefault;

  /* Not known => get a look-ahead token if don't already have one.  */

  /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
  if (yychar == YYEMPTY)
    {
      YYDPRINTF ((stderr, "Reading a token: "));
      yychar = YYLEX;
    }

  if (yychar <= YYEOF)
    {
      yychar = yytoken = YYEOF;
      YYDPRINTF ((stderr, "Now at end of input.\n"));
    }
  else
    {
      yytoken = YYTRANSLATE (yychar);
      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
    }

  /* If the proper action on seeing token YYTOKEN is to reduce or to
     detect an error, take that action.  */
  yyn += yytoken;
  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
    goto yydefault;
  yyn = yytable[yyn];
  if (yyn <= 0)
    {
      if (yyn == 0 || yyn == YYTABLE_NINF)
	goto yyerrlab;
      yyn = -yyn;
      goto yyreduce;
    }

  if (yyn == YYFINAL)
    YYACCEPT;

  /* Count tokens shifted since error; after three, turn off error
     status.  */
  if (yyerrstatus)
    yyerrstatus--;

  /* Shift the look-ahead token.  */
  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);

  /* Discard the shifted token unless it is eof.  */
  if (yychar != YYEOF)
    yychar = YYEMPTY;

  yystate = yyn;
  *++yyvsp = yylval;

  goto yynewstate;


/*-----------------------------------------------------------.
| yydefault -- do the default action for the current state.  |
`-----------------------------------------------------------*/
yydefault:
  yyn = yydefact[yystate];
  if (yyn == 0)
    goto yyerrlab;
  goto yyreduce;


/*-----------------------------.
| yyreduce -- Do a reduction.  |
`-----------------------------*/
yyreduce:
  /* yyn is the number of a rule to reduce with.  */
  yylen = yyr2[yyn];

  /* If YYLEN is nonzero, implement the default value of the action:
     `$$ = $1'.

     Otherwise, the following line sets YYVAL to garbage.
     This behavior is undocumented and Bison
     users should not rely upon it.  Assigning to YYVAL
     unconditionally makes the parser a bit smaller, and it avoids a
     GCC warning that YYVAL may be used uninitialized.  */
  yyval = yyvsp[1-yylen];


  YY_REDUCE_PRINT (yyn);
  switch (yyn)
    {
        case 4:
#line 129 "gram.y"
    {
			struct Interface *iface2;

			iface2 = IfaceList;
			while (iface2)
			{
				if (!strcmp(iface2->Name, iface->Name))
				{
					flog(LOG_ERR, "duplicate interface "
						"definition for %s", iface->Name);
					ABORT;
				}
				iface2 = iface2->next;
			}			

			if (check_device(sock, iface) < 0) {
				if (iface->IgnoreIfMissing) {
					dlog(LOG_DEBUG, 4, "interface %s did not exist, ignoring the interface", iface->Name);
					goto skip_interface;
				}
				else {
					flog(LOG_ERR, "interface %s does not exist", iface->Name);
					ABORT;
				}
			}
			if (setup_deviceinfo(sock, iface) < 0)
				ABORT;
			if (check_iface(iface) < 0)
				ABORT;
			if (setup_linklocal_addr(sock, iface) < 0)
				ABORT;
			if (setup_allrouters_membership(sock, iface) < 0)
				ABORT;

			iface->next = IfaceList;
			IfaceList = iface;

			dlog(LOG_DEBUG, 4, "interface definition for %s is ok", iface->Name);

skip_interface:
			iface = NULL;
		}
    break;

  case 5:
#line 173 "gram.y"
    {
			iface = malloc(sizeof(struct Interface));

			if (iface == NULL) {
				flog(LOG_CRIT, "malloc failed: %s", strerror(errno));
				ABORT;
			}

			iface_init_defaults(iface);
			strncpy(iface->Name, (yyvsp[(2) - (2)].str), IFNAMSIZ-1);
			iface->Name[IFNAMSIZ-1] = '\0';
		}
    break;

  case 6:
#line 188 "gram.y"
    {
			/* check vality */
			(yyval.str) = (yyvsp[(1) - (1)].str);
		}
    break;

  case 7:
#line 195 "gram.y"
    {
			iface->AdvPrefixList = (yyvsp[(2) - (4)].pinfo);
			iface->AdvRouteList = (yyvsp[(3) - (4)].rinfo);
			iface->AdvRDNSSList = (yyvsp[(4) - (4)].rdnssinfo);
		}
    break;

  case 10:
#line 207 "gram.y"
    {
			(yyval.pinfo) = NULL;
		}
    break;

  case 12:
#line 214 "gram.y"
    {
			(yyval.rinfo) = NULL;
		}
    break;

  case 14:
#line 221 "gram.y"
    {
			(yyval.rdnssinfo) = NULL;
		}
    break;

  case 18:
#line 232 "gram.y"
    {
			iface->MinRtrAdvInterval = (yyvsp[(2) - (3)].num);
		}
    break;

  case 19:
#line 236 "gram.y"
    {
			iface->MaxRtrAdvInterval = (yyvsp[(2) - (3)].num);
		}
    break;

  case 20:
#line 240 "gram.y"
    {
			iface->MinDelayBetweenRAs = (yyvsp[(2) - (3)].num);
		}
    break;

  case 21:
#line 244 "gram.y"
    {
			iface->MinRtrAdvInterval = (yyvsp[(2) - (3)].dec);
		}
    break;

  case 22:
#line 248 "gram.y"
    {
			iface->MaxRtrAdvInterval = (yyvsp[(2) - (3)].dec);
		}
    break;

  case 23:
#line 252 "gram.y"
    {
			iface->MinDelayBetweenRAs = (yyvsp[(2) - (3)].dec);
		}
    break;

  case 24:
#line 256 "gram.y"
    {
			iface->IgnoreIfMissing = (yyvsp[(2) - (3)].bool);
		}
    break;

  case 25:
#line 260 "gram.y"
    {
			iface->AdvSendAdvert = (yyvsp[(2) - (3)].bool);
		}
    break;

  case 26:
#line 264 "gram.y"
    {
			iface->AdvManagedFlag = (yyvsp[(2) - (3)].bool);
		}
    break;

  case 27:
#line 268 "gram.y"
    {
			iface->AdvOtherConfigFlag = (yyvsp[(2) - (3)].bool);
		}
    break;

  case 28:
#line 272 "gram.y"
    {
			iface->AdvLinkMTU = (yyvsp[(2) - (3)].num);
		}
    break;

  case 29:
#line 276 "gram.y"
    {
			iface->AdvReachableTime = (yyvsp[(2) - (3)].num);
		}
    break;

  case 30:
#line 280 "gram.y"
    {
			iface->AdvRetransTimer = (yyvsp[(2) - (3)].num);
		}
    break;

  case 31:
#line 284 "gram.y"
    {
			iface->AdvDefaultLifetime = (yyvsp[(2) - (3)].num);
		}
    break;

  case 32:
#line 288 "gram.y"
    {
			iface->AdvDefaultPreference = (yyvsp[(2) - (3)].snum);
		}
    break;

  case 33:
#line 292 "gram.y"
    {
			iface->AdvCurHopLimit = (yyvsp[(2) - (3)].num);
		}
    break;

  case 34:
#line 296 "gram.y"
    {
			iface->AdvSourceLLAddress = (yyvsp[(2) - (3)].bool);
		}
    break;

  case 35:
#line 300 "gram.y"
    {
			iface->AdvIntervalOpt = (yyvsp[(2) - (3)].bool);
		}
    break;

  case 36: