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Code Issues

(svn r10494) -Fix (r10490): possible null dereference in some exotic newgrfs.

release/0.6
rubidium 2007-07-09 20:08:25 +00:00
parent b876be0064
commit 09eb6623ab
3 changed files with 8 additions and 4 deletions
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2
src/industry_cmd.cpp
View File

@ -1191,7 +1191,7 @@ static bool CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTileTable
if (HASBIT(its->callback_flags, CBM_INDT_SHAPE_CHECK)) {
if (custom_shape_check != NULL) *custom_shape_check = true;
if (!PerformIndustryTileSlopeCheck(cur_tile, its, it->gfx)) return false;
if (!PerformIndustryTileSlopeCheck(cur_tile, its, type, it->gfx)) return false;
} else {
if (ind_behav & INDUSTRYBEH_BUILT_ONWATER) {
/* As soon as the tile is not water, bail out.

8
src/newgrf_industrytiles.cpp
View File

@ -229,9 +229,13 @@ bool DrawNewIndustryTile(TileInfo *ti, Industry *i, IndustryGfx gfx, const Indus
}
}
bool PerformIndustryTileSlopeCheck(TileIndex tile, const IndustryTileSpec *its, IndustryGfx gfx)
bool PerformIndustryTileSlopeCheck(TileIndex tile, const IndustryTileSpec *its, IndustryType type, IndustryGfx gfx)
{
uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_SHAPE_CHECK, 0, 0, gfx, NULL, tile);
Industry ind;
ind.xy = 0;
ind.type = type;
uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_SHAPE_CHECK, 0, 0, gfx, &ind, tile);
if (its->grf_prop.grffile->grf_version < 7) {
return callback_res != 0;
}

2
src/newgrf_industrytiles.h
View File

@ -7,6 +7,6 @@
bool DrawNewIndustryTile(TileInfo *ti, Industry *i, IndustryGfx gfx, const IndustryTileSpec *inds);
uint16 GetIndustryTileCallback(uint16 callback, uint32 param1, uint32 param2, IndustryGfx gfx_id, Industry *industry, TileIndex tile);
bool PerformIndustryTileSlopeCheck(TileIndex tile, const IndustryTileSpec *its, IndustryGfx gfx);
bool PerformIndustryTileSlopeCheck(TileIndex tile, const IndustryTileSpec *its, IndustryType type, IndustryGfx gfx);
#endif /* NEWGRF_INDUSTRYTILES_H */