Method FindDir

Kernel/src/fs/ext2.cpp:952–1049

    }

    FsNode* Ext2Volume::FindDir(Ext2Node* node, char* name){
        if((node->flags & FS_NODE_TYPE) != FS_NODE_DIRECTORY){
            return nullptr;
        }

        if(node->inode < 1){
            Log::Warning("[Ext2] ReadDir: Invalid inode: %d", node->inode);
            return nullptr;
        }

        ext2_inode_t& ino = node->e2inode;

        uint8_t buffer[blocksize];
        uint32_t currentBlockIndex = 0;
        uint32_t blockOffset = 0;
        uint32_t totalOffset = 0;

        ext2_directory_entry_t* e2dirent = (ext2_directory_entry_t*)buffer;

        if(ReadBlockCached(GetInodeBlock(currentBlockIndex, ino), buffer)){
            Log::Info("[Ext2] Failed to read block %d", GetInodeBlock(currentBlockIndex, ino));
            return nullptr;
        }

        while(currentBlockIndex < ino.blockCount / (blocksize / 512)){
            if(e2dirent->recordLength < 8) {
                IF_DEBUG(debugLevelExt2 >= DebugLevelNormal, {
                    Log::Warning("[Ext2] Error (inode: %d) record length of directory entry is invalid (value: %d)!", node->inode, e2dirent->recordLength);
                });
                break;
            }

            if(e2dirent->inode > 0){
                IF_DEBUG(debugLevelExt2 >= DebugLevelVerbose, {
                    char buf[e2dirent->nameLength + 1];
                    strncpy(buf, e2dirent->name, e2dirent->nameLength);
                    buf[e2dirent->nameLength] = 0;
                    Log::Info("Checking name '%s' (name len %d), inode %d, len %d (parent inode: %d)", buf, e2dirent->nameLength, e2dirent->inode, e2dirent->recordLength, node->inode);
                });

                if(strlen(name) == e2dirent->nameLength && strncmp(name, e2dirent->name, e2dirent->nameLength) == 0){
                    break;
                }
            }

            blockOffset += e2dirent->recordLength;
            totalOffset += e2dirent->recordLength;

            if(totalOffset > ino.size) return nullptr;

            if(blockOffset >= blocksize){
                currentBlockIndex++;
                
                if(currentBlockIndex >= ino.blockCount / (blocksize / 512)){
                    // End of dir
                    return nullptr;
                }