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Commit 83f4c099 authored by Xavier Ducrohet's avatar Xavier Ducrohet
Browse files

Fix potential aapt crash when processing overlay. 

If an overlay has a type of resources that's not defined in
the main res pool, then aapt would crash.

This dynamically create new ResourceTypeSet when needed
when processing the overlays

Change-Id: I67bc3622281bde73cf42f37a0983798d3f658ce2
parent 687c1330

tools/aapt/Resource.cpp

+18 −11
Original line number Diff line number Diff line
@@ -447,7 +447,7 @@ static void checkForIds(const String8& path, ResXMLParser& parser) 


static bool applyFileOverlay(Bundle *bundle,

                             const sp<AaptAssets>& assets,

                             const sp<ResourceTypeSet>& baseSet,

                             sp<ResourceTypeSet> *baseSet,

                             const char *resType)

{

    if (bundle->getVerbose()) {
@@ -475,13 +475,16 @@ static bool applyFileOverlay(Bundle *bundle, 
                if (bundle->getVerbose()) {

                    printf("trying overlaySet Key=%s\n",overlaySet->keyAt(overlayIndex).string());

                }

                size_t baseIndex = baseSet->indexOfKey(overlaySet->keyAt(overlayIndex));

                size_t baseIndex = UNKNOWN_ERROR;

                if (baseSet->get() != NULL) {

                    baseIndex = (*baseSet)->indexOfKey(overlaySet->keyAt(overlayIndex));

                }

                if (baseIndex < UNKNOWN_ERROR) {

                    // look for same flavor.  For a given file (strings.xml, for example)

                    // there may be a locale specific or other flavors - we want to match

                    // the same flavor.

                    sp<AaptGroup> overlayGroup = overlaySet->valueAt(overlayIndex);

                    sp<AaptGroup> baseGroup = baseSet->valueAt(baseIndex);

                    sp<AaptGroup> baseGroup = (*baseSet)->valueAt(baseIndex);



                    DefaultKeyedVector<AaptGroupEntry, sp<AaptFile> > overlayFiles =

                            overlayGroup->getFiles();
@@ -520,8 +523,12 @@ static bool applyFileOverlay(Bundle *bundle, 
                        assets->addGroupEntry(overlayFiles.keyAt(overlayGroupIndex));

                    }

                } else {

                    if (baseSet->get() == NULL) {

                        *baseSet = new ResourceTypeSet();

                        assets->getResources()->add(String8(resType), *baseSet);

                    }

                    // this group doesn't exist (a file that's only in the overlay)

                    baseSet->add(overlaySet->keyAt(overlayIndex),

                    (*baseSet)->add(overlaySet->keyAt(overlayIndex),

                            overlaySet->valueAt(overlayIndex));

                    // make sure all flavors are defined in the resources.

                    sp<AaptGroup> overlayGroup = overlaySet->valueAt(overlayIndex);
@@ -751,13 +758,13 @@ status_t buildResources(Bundle* bundle, const sp<AaptAssets>& assets) 
        current = current->getOverlay();

    }

    // apply the overlay files to the base set

    if (!applyFileOverlay(bundle, assets, drawables, "drawable") ||

            !applyFileOverlay(bundle, assets, layouts, "layout") ||

            !applyFileOverlay(bundle, assets, anims, "anim") ||

            !applyFileOverlay(bundle, assets, xmls, "xml") ||

            !applyFileOverlay(bundle, assets, raws, "raw") ||

            !applyFileOverlay(bundle, assets, colors, "color") ||

            !applyFileOverlay(bundle, assets, menus, "menu")) {

    if (!applyFileOverlay(bundle, assets, &drawables, "drawable") ||

            !applyFileOverlay(bundle, assets, &layouts, "layout") ||

            !applyFileOverlay(bundle, assets, &anims, "anim") ||

            !applyFileOverlay(bundle, assets, &xmls, "xml") ||

            !applyFileOverlay(bundle, assets, &raws, "raw") ||

            !applyFileOverlay(bundle, assets, &colors, "color") ||

            !applyFileOverlay(bundle, assets, &menus, "menu")) {

        return UNKNOWN_ERROR;

    }