4 files changed, 839 insertions, 0 deletions
diff --git a/src/shared/Config/dotconfpp/dotconfpp.cpp b/src/shared/Config/dotconfpp/dotconfpp.cpp
new file mode 100644
index 00000000000..60008747ad1
--- /dev/null
+++ b/src/shared/Config/dotconfpp/dotconfpp.cpp
@@ -0,0 +1,583 @@
+
+#include "Common.h"
+
+#include "dotconfpp.h"
+
+#if !defined(R_OK)
+#define R_OK 04
+#endif
+
+DOTCONFDocumentNode::DOTCONFDocumentNode():previousNode(NULL), nextNode(NULL), parentNode(NULL), childNode(NULL),
+    values(NULL), valuesCount(0),
+    name(NULL), lineNum(0), fileName(NULL), closed(true)
+{
+}
+
+DOTCONFDocumentNode::~DOTCONFDocumentNode()
+{
+    free(name);
+    if(values != NULL){
+        for(int i = 0 ; i < valuesCount; i++){
+            free(values[i]);
+        }
+        free(values);
+    }
+}
+
+void DOTCONFDocumentNode::pushValue(char * _value)
+{
+    ++valuesCount;
+    values = (char**)realloc(values, valuesCount*sizeof(char*));
+    values[valuesCount-1] = strdup(_value);
+}
+
+const char* DOTCONFDocumentNode::getValue(int index) const
+{
+    if(index >= valuesCount){
+        return NULL;
+    }
+    return values[index];
+}
+
+DOTCONFDocument::DOTCONFDocument(DOTCONFDocument::CaseSensitive caseSensitivity):
+    mempool(NULL),
+    curParent(NULL), curPrev(NULL), curLine(0), file(NULL), fileName(NULL)
+{
+    if(caseSensitivity == CASESENSETIVE){
+        cmp_func = strcmp;
+    } else {
+        cmp_func = strcasecmp;
+    }
+
+    mempool = new AsyncDNSMemPool(1024);
+    mempool->initialize();
+}
+
+DOTCONFDocument::~DOTCONFDocument()
+{
+    for(std::list<DOTCONFDocumentNode*>::iterator i = nodeTree.begin(); i != nodeTree.end(); i++){
+        delete(*i);
+    }
+    for(std::list<char*>::iterator i = requiredOptions.begin(); i != requiredOptions.end(); i++){
+        free(*i);
+    }
+    for(std::list<char*>::iterator i = processedFiles.begin(); i != processedFiles.end(); i++){
+        free(*i);
+    }
+    free(fileName);
+    delete mempool;
+}
+
+int DOTCONFDocument::cleanupLine(char * line)
+{
+    char * start = line;
+    char * bg = line;
+    bool multiline = false;
+    bool concat = false;
+    char * word = NULL;
+
+    if(!words.empty() && quoted)
+        concat = true;
+
+    while(*line){
+        if((*line == '#' || *line == ';') && !quoted){
+            *bg = 0;
+            if(strlen(start)){
+
+                if(concat){
+                    word = (char*)mempool->alloc(strlen(words.back())+strlen(start)+1);
+                    strcpy(word, words.back());
+                    strcat(word, start);
+                    words.pop_back();
+                    concat = false;
+                } else {
+                    word = mempool->strdup(start);
+                }
+                words.push_back(word);
+            }
+            break;
+        }
+        if(*line == '=' && !quoted){
+            *line = ' ';continue;
+        }
+
+        // Allowing \" in there causes problems with directory paths
+        // like "C:\MaNGOS\"
+        //if(*line == '\\' && (*(line+1) == '"' || *(line+1) == '\'')){
+        if(*line == '\\' && (*(line+1) == '\'')) {
+            *bg++ = *(line+1);
+            line+=2; continue;
+        }
+        if(*line == '\\' && *(line+1) == 'n'){
+            *bg++ = '\n';
+            line+=2; continue;
+        }
+        if(*line == '\\' && *(line+1) == 'r'){
+            *bg++ = '\r';
+            line+=2; continue;
+        }
+        if(*line == '\\' && (*(line+1) == '\n' || *(line+1) == '\r')){
+            *bg = 0;
+            if(strlen(start)){
+
+                if(concat){
+                    word = (char*)mempool->alloc(strlen(words.back())+strlen(start)+1);
+                    strcpy(word, words.back());
+                    strcat(word, start);
+                    words.pop_back();
+                    concat = false;
+                } else {
+                    word = mempool->strdup(start);
+                }
+                words.push_back(word);
+            }
+            multiline = true;
+            break;
+        }
+        if(*line == '"' || *line == '\''){
+            quoted = !quoted;
+            ++line; continue;
+        }
+        if(isspace(*line) && !quoted){
+            *bg++ = 0;
+            if(strlen(start)){
+
+                if(concat){
+                    word = (char*)mempool->alloc(strlen(words.back())+strlen(start)+1);
+                    strcpy(word, words.back());
+                    strcat(word, start);
+                    words.pop_back();
+                    concat = false;
+                } else {
+                    word = mempool->strdup(start);
+                }
+                words.push_back(word);
+            }
+            start = bg;
+            while(isspace(*++line)) {}
+
+            continue;
+        }
+        *bg++ = *line++;
+    }
+
+    if(quoted && !multiline){
+        error(curLine, fileName, "unterminated quote");
+        return -1;
+    }
+
+    return multiline?1:0;
+}
+
+int DOTCONFDocument::parseLine()
+{
+    char * word = NULL;
+    char * nodeName = NULL;
+    char * nodeValue = NULL;
+    DOTCONFDocumentNode * tagNode = NULL;
+    bool newNode = false;
+
+    for(std::list<char*>::iterator i = words.begin(); i != words.end(); i++) {
+        word = *i;
+
+        if(*word == '<'){
+            newNode = true;
+        }
+
+        if(newNode){
+            nodeValue = NULL;
+            nodeName = NULL;
+            newNode = false;
+        }
+
+        size_t wordLen = strlen(word);
+        if(word[wordLen-1] == '>'){
+            word[wordLen-1] = 0;
+            newNode = true;
+        }
+
+        if(nodeName == NULL){
+            nodeName = word;
+            bool closed = true;
+            if(*nodeName == '<'){
+                if(*(nodeName+1) != '/'){
+                    ++nodeName;
+                    closed = false;
+                } else {
+                    nodeName+=2;
+                    std::list<DOTCONFDocumentNode*>::reverse_iterator itr=nodeTree.rbegin();
+                    for(; itr!=nodeTree.rend(); ++itr){
+                        if(!cmp_func(nodeName, (*itr)->name) && !(*itr)->closed){
+                            (*itr)->closed = true;
+                            curParent = (*itr)->parentNode;
+                            curPrev = *itr;
+                            break;
+                        }
+                    }
+                    if(itr==nodeTree.rend()){
+                        error(curLine, fileName, "not matched closing tag </%s>", nodeName);
+                        return -1;
+                    }
+                    continue;
+                }
+            }
+            tagNode = new DOTCONFDocumentNode;
+            tagNode->name = strdup(nodeName);
+            tagNode->document = this;
+            tagNode->fileName = processedFiles.back();
+            tagNode->lineNum = curLine;
+            tagNode->closed = closed;
+            if(!nodeTree.empty()){
+                DOTCONFDocumentNode * prev = nodeTree.back();
+                if(prev->closed){
+
+                    curPrev->nextNode = tagNode;
+                    tagNode->previousNode = curPrev;
+                    tagNode->parentNode = curParent;
+
+                } else {
+                    prev->childNode = tagNode;
+                    tagNode->parentNode = prev;
+                    curParent = prev;
+                }
+            }
+            nodeTree.push_back(tagNode);
+            curPrev = tagNode;
+        } else {
+            nodeValue = word;
+            tagNode->pushValue(nodeValue);
+        }
+    }
+
+    return 0;
+}
+int DOTCONFDocument::parseFile(DOTCONFDocumentNode * _parent)
+{
+    char str[512];
+    int ret = 0;
+    curLine = 0;
+    curParent = _parent;
+
+    quoted = false;
+    size_t slen = 0;
+
+    while(fgets(str, 511, file)){
+        ++curLine;
+    slen = strlen(str);
+        if( slen >= 510 ){
+            error(curLine, fileName, "warning: line too long");
+        }
+    if(str[slen-1] != '\n'){
+        str[slen] = '\n';
+        str[slen+1] = 0;
+    }
+        if((ret = cleanupLine(str)) == -1){
+            break;
+        }
+        if(ret == 0){
+            if(!words.empty()){
+                ret = parseLine();
+                mempool->free();
+                words.clear();
+                if(ret == -1){
+                    break;
+                }
+            }
+        }
+    }
+
+    return ret;
+}
+
+int DOTCONFDocument::checkConfig(const std::list<DOTCONFDocumentNode*>::iterator & from)
+{
+    int ret = 0;
+
+    DOTCONFDocumentNode * tagNode = NULL;
+    int vi = 0;
+    for(std::list<DOTCONFDocumentNode*>::iterator i = from; i != nodeTree.end(); i++){
+        tagNode = *i;
+        if(!tagNode->closed){
+            error(tagNode->lineNum, tagNode->fileName, "unclosed tag %s", tagNode->name);
+            ret = -1;
+            break;
+        }
+        vi = 0;
+        while( vi < tagNode->valuesCount ){
+
+            if(strstr(tagNode->values[vi], "${") && strchr(tagNode->values[vi], '}') ){
+                ret = macroSubstitute(tagNode, vi );
+                mempool->free();
+                if(ret == -1){
+                    break;
+                }
+            }
+            ++vi;
+        }
+        if(ret == -1){
+            break;
+        }
+    }
+
+    return ret;
+}
+
+int DOTCONFDocument::setContent(const char * _fileName)
+{
+    int ret = 0;
+    char realpathBuf[PATH_MAX];
+
+    if(realpath(_fileName, realpathBuf) == NULL){
+        error(0, NULL, "realpath(%s) failed: %s", _fileName, strerror(errno));
+        return -1;
+    }
+
+    fileName = strdup(realpathBuf);
+
+    processedFiles.push_back(strdup(realpathBuf));
+
+    if(( file = fopen(fileName, "r")) == NULL){
+        error(0, NULL, "failed to open file '%s': %s", fileName, strerror(errno));
+        return -1;
+    }
+
+    ret = parseFile();
+
+    (void) fclose(file);
+
+    if(!ret){
+
+        if( (ret = checkConfig(nodeTree.begin())) == -1){
+            return -1;
+        }
+
+        std::list<DOTCONFDocumentNode*>::iterator from;
+        DOTCONFDocumentNode * tagNode = NULL;
+        int vi = 0;
+        for(std::list<DOTCONFDocumentNode*>::iterator i = nodeTree.begin(); i!=nodeTree.end(); i++){
+            tagNode = *i;
+            if(!cmp_func("DOTCONFPPIncludeFile", tagNode->name)){
+                vi = 0;
+                while( vi < tagNode->valuesCount ){
+                    if(access(tagNode->values[vi], R_OK) == -1){
+                        error(tagNode->lineNum, tagNode->fileName, "%s: %s", tagNode->values[vi], strerror(errno));
+                        return -1;
+                    }
+                    if(realpath(tagNode->values[vi], realpathBuf) == NULL){
+                        error(tagNode->lineNum, tagNode->fileName, "realpath(%s) failed: %s", tagNode->values[vi], strerror(errno));
+                        return -1;
+                    }
+
+                    bool processed = false;
+                    for(std::list<char*>::const_iterator itInode = processedFiles.begin(); itInode != processedFiles.end(); itInode++){
+                        if(!strcmp(*itInode, realpathBuf)){
+                            processed = true;
+                            break;
+                        }
+                    }
+                    if(processed){
+                        break;
+                    }
+
+                    processedFiles.push_back(strdup(realpathBuf));
+
+                    file = fopen(tagNode->values[vi], "r");
+                    if(file == NULL){
+                        error(tagNode->lineNum, fileName, "failed to open file '%s': %s", tagNode->values[vi], strerror(errno));
+                        return -1;
+                    }
+
+                    fileName = strdup(realpathBuf);
+                    from = nodeTree.end(); --from;
+
+                    ret = parseFile();
+                    (void) fclose(file);
+                    if(ret == -1)
+                        return -1;
+                    if(checkConfig(++from) == -1){
+                        return -1;
+                    }
+                    ++vi;
+                }
+            }
+        }
+
+
+        if(!requiredOptions.empty())
+            ret = checkRequiredOptions();
+    }
+
+    return ret;
+}
+
+int DOTCONFDocument::checkRequiredOptions()
+{
+    for(std::list<char*>::const_iterator ci = requiredOptions.begin(); ci != requiredOptions.end(); ci++){
+        bool matched = false;
+        for(std::list<DOTCONFDocumentNode*>::iterator i = nodeTree.begin(); i!=nodeTree.end(); i++){
+            if(!cmp_func((*i)->name, *ci)){
+                matched = true;
+                break;
+            }
+        }
+        if(!matched){
+            error(0, NULL, "required option '%s' not specified", *ci);
+            return -1;
+        }
+    }
+    return 0;
+}
+
+void DOTCONFDocument::error(int lineNum, const char * fileName_, const char * fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+
+    size_t len = (lineNum!=0?strlen(fileName_):0) + strlen(fmt) + 50;
+    char * buf = (char*)mempool->alloc(len);
+
+    if(lineNum)
+        (void) snprintf(buf, len, "DOTCONF++: file '%s', line %d: %s\n", fileName_, lineNum, fmt);
+    else
+        (void) snprintf(buf, len, "DOTCONF++: %s\n", fmt);
+
+    (void) vfprintf(stderr, buf, args);
+
+    va_end(args);
+}
+
+char * DOTCONFDocument::getSubstitution(char * macro, int lineNum)
+{
+    char * buf = NULL;
+    char * variable = macro+2;
+
+    char * endBr = strchr(macro, '}');
+
+    if(!endBr){
+        error(lineNum, fileName, "unterminated '{'");
+        return NULL;
+    }
+    *endBr = 0;
+
+    char * defaultValue = strchr(variable, ':');
+
+    if(defaultValue){
+        *defaultValue++ = 0;
+        if(*defaultValue != '-'){
+            error(lineNum, fileName, "incorrect macro substitution syntax");
+            return NULL;
+        }
+        ++defaultValue;
+        if(*defaultValue == '"' || *defaultValue == '\''){
+            ++defaultValue;
+            defaultValue[strlen(defaultValue)-1] = 0;
+        }
+    } else {
+        defaultValue = NULL;
+    }
+
+    char * subs = getenv(variable);
+    if( subs ){
+        buf = mempool->strdup(subs);
+    } else {
+        std::list<DOTCONFDocumentNode*>::iterator i = nodeTree.begin();
+        DOTCONFDocumentNode * tagNode = NULL;
+        for(; i!=nodeTree.end(); i++){
+            tagNode = *i;
+            if(!cmp_func(tagNode->name, variable)){
+                if(tagNode->valuesCount != 0){
+                    buf = mempool->strdup(tagNode->values[0]);
+                    break;
+                }
+            }
+        }
+        if( i == nodeTree.end() ){
+            if( defaultValue ){
+                buf = mempool->strdup(defaultValue);
+            } else {
+                error(lineNum, fileName, "substitution not found and default value not given");
+                return NULL;
+            }
+        }
+    }
+    return buf;
+}
+
+int DOTCONFDocument::macroSubstitute(DOTCONFDocumentNode * tagNode, int valueIndex)
+{
+    int ret = 0;
+    char * macro = tagNode->values[valueIndex];
+    size_t valueLen = strlen(tagNode->values[valueIndex])+1;
+    char * value = (char*)mempool->alloc(valueLen);
+    char * v = value;
+    char * subs = NULL;
+
+    while(*macro){
+        if(*macro == '$' && *(macro+1) == '{'){
+            char * m = strchr(macro, '}');
+            subs = getSubstitution(macro, tagNode->lineNum);
+            if(subs == NULL){
+                ret = -1;
+                break;
+            }
+            macro = m + 1;
+            *v = 0;
+            v = (char*)mempool->alloc(strlen(value)+strlen(subs)+valueLen);
+            strcpy(v, value);
+            value = strcat(v, subs);
+            v = value + strlen(value);
+            continue;
+        }
+        *v++ = *macro++;
+    }
+    *v = 0;
+
+    free(tagNode->values[valueIndex]);
+    tagNode->values[valueIndex] = strdup(value);
+    return ret;
+}
+
+const DOTCONFDocumentNode * DOTCONFDocument::getFirstNode() const
+{
+    if ( !nodeTree.empty() ) {
+        return *nodeTree.begin();
+    } else {
+        return NULL;
+    }
+}
+
+const DOTCONFDocumentNode * DOTCONFDocument::findNode(const char * nodeName, const DOTCONFDocumentNode * parentNode, const DOTCONFDocumentNode * startNode) const
+{
+
+
+    std::list<DOTCONFDocumentNode*>::const_iterator i = nodeTree.begin();
+
+    if(startNode == NULL)
+        startNode = parentNode;
+
+    if(startNode != NULL){
+        while( i != nodeTree.end() && (*i) != startNode ){
+            ++i;
+        }
+        if( i != nodeTree.end() ) ++i;
+    }
+
+    for(; i!=nodeTree.end(); i++){
+
+    if((*i)->parentNode != parentNode){
+            continue;
+        }
+        if(!cmp_func(nodeName, (*i)->name)){
+            return *i;
+        }
+    }
+    return NULL;
+}
+
+void DOTCONFDocument::setRequiredOptionNames(const char ** requiredOptionNames)
+{
+    while(*requiredOptionNames){
+        requiredOptions.push_back(strdup( *requiredOptionNames ));
+        ++requiredOptionNames;
+    }
+}
diff --git a/src/shared/Config/dotconfpp/dotconfpp.h b/src/shared/Config/dotconfpp/dotconfpp.h
new file mode 100644
index 00000000000..15c4f7fcd78
--- /dev/null
+++ b/src/shared/Config/dotconfpp/dotconfpp.h
@@ -0,0 +1,110 @@
+
+
+
+#ifndef DOTCONFPP_H
+#define DOTCONFPP_H
+
+#include <list>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#ifdef WIN32
+#define PATH_MAX _MAX_PATH
+#define snprintf _snprintf
+#define strcasecmp stricmp
+#define realpath(path,resolved_path) _fullpath(resolved_path, path, _MAX_PATH)
+#include <io.h>
+#else
+#include <unistd.h>
+#include <limits.h>
+#include <stdint.h>
+#include <strings.h>
+#endif
+
+#include "mempool.h"
+
+class DOTCONFDocument;
+
+class DOTCONFDocumentNode
+{
+friend class DOTCONFDocument;
+private:
+    DOTCONFDocumentNode * previousNode;
+    DOTCONFDocumentNode * nextNode;
+    DOTCONFDocumentNode * parentNode;
+    DOTCONFDocumentNode * childNode;
+    char ** values;
+    int valuesCount;
+    char * name;
+    const DOTCONFDocument * document;
+    int lineNum;
+    char * fileName;
+    bool closed;
+
+    void pushValue(char * _value);
+
+public:
+    DOTCONFDocumentNode();
+    ~DOTCONFDocumentNode();
+
+    const char * getConfigurationFileName()const { return fileName; }
+    int getConfigurationLineNumber() const { return lineNum; }
+
+    const DOTCONFDocumentNode * getNextNode() const { return nextNode; }
+    const DOTCONFDocumentNode * getPreviuosNode() const { return previousNode; }
+    const DOTCONFDocumentNode * getParentNode() const { return parentNode; }
+    const DOTCONFDocumentNode * getChildNode() const { return childNode; }
+    const char* getValue(int index = 0) const;
+    const char * getName() const { return name; }
+    const DOTCONFDocument * getDocument() const { return document; }
+};
+
+class DOTCONFDocument
+{
+public:
+    enum CaseSensitive { CASESENSETIVE, CASEINSENSETIVE };
+protected:
+    AsyncDNSMemPool * mempool;
+private:
+    DOTCONFDocumentNode * curParent;
+    DOTCONFDocumentNode * curPrev;
+    int curLine;
+    bool quoted;
+    std::list<DOTCONFDocumentNode*> nodeTree;
+    std::list<char*> requiredOptions;
+    std::list<char*> processedFiles;
+    FILE * file;
+    char * fileName;
+    std::list<char*> words;
+    int (*cmp_func)(const char *, const char *);
+
+    int checkRequiredOptions();
+    int parseLine();
+    int parseFile(DOTCONFDocumentNode * _parent = NULL);
+    int checkConfig(const std::list<DOTCONFDocumentNode*>::iterator & from);
+    int cleanupLine(char * line);
+    char * getSubstitution(char * macro, int lineNum);
+    int macroSubstitute(DOTCONFDocumentNode * tagNode, int valueIndex);
+
+protected:
+    virtual void error(int lineNum, const char * fileName, const char * fmt, ...) ATTR_PRINTF(4,5);
+
+public:
+    DOTCONFDocument(CaseSensitive caseSensitivity = CASESENSETIVE);
+    virtual ~DOTCONFDocument();
+
+    int setContent(const char * _fileName);
+
+    void setRequiredOptionNames(const char ** requiredOptionNames);
+    const DOTCONFDocumentNode * getFirstNode() const;
+    const DOTCONFDocumentNode * findNode(const char * nodeName, const DOTCONFDocumentNode * parentNode = NULL, const DOTCONFDocumentNode * startNode = NULL) const;
+};
+
+#endif
diff --git a/src/shared/Config/dotconfpp/mempool.cpp b/src/shared/Config/dotconfpp/mempool.cpp
new file mode 100644
index 00000000000..cf589ffb2bc
--- /dev/null
+++ b/src/shared/Config/dotconfpp/mempool.cpp
@@ -0,0 +1,100 @@
+
+
+
+#include "mempool.h"
+
+AsyncDNSMemPool::PoolChunk::PoolChunk(size_t _size):
+    pool(NULL), pos(0), size(_size)
+{
+    pool = ::malloc(size);
+}
+
+AsyncDNSMemPool::PoolChunk::~PoolChunk()
+{
+    ::free(pool);
+}
+
+AsyncDNSMemPool::AsyncDNSMemPool(size_t _defaultSize):
+    chunks(NULL), chunksCount(0), defaultSize(_defaultSize),
+    poolUsage(0), poolUsageCounter(0)
+{
+}
+
+AsyncDNSMemPool::~AsyncDNSMemPool()
+{
+    for(size_t i = 0; i<chunksCount; i++){
+        delete chunks[i];
+    }
+    ::free(chunks);
+}
+
+int AsyncDNSMemPool::initialize()
+{
+    chunksCount = 1;
+    chunks = (PoolChunk**)::malloc(sizeof(PoolChunk*));
+    if(chunks == NULL)
+        return -1;
+
+    chunks[chunksCount-1] = new PoolChunk(defaultSize);
+
+    return 0;
+}
+
+void AsyncDNSMemPool::addNewChunk(size_t size)
+{
+    ++chunksCount;
+    chunks = (PoolChunk**)::realloc(chunks, chunksCount*sizeof(PoolChunk*));
+    if(size <= defaultSize)
+        chunks[chunksCount-1] = new PoolChunk(defaultSize);
+    else
+        chunks[chunksCount-1] = new PoolChunk(size);
+}
+
+void * AsyncDNSMemPool::alloc(size_t size)
+{
+    PoolChunk * chunk = NULL;
+    for(size_t i = 0; i<chunksCount; i++){
+        chunk = chunks[i];
+        if((chunk->size - chunk->pos) >= size){
+            chunk->pos += size;
+            return ((char*)chunk->pool) + chunk->pos - size;
+        }
+    }
+    addNewChunk(size);
+    chunks[chunksCount-1]->pos = size;
+    return chunks[chunksCount-1]->pool;
+}
+
+void AsyncDNSMemPool::free()
+{
+    size_t pu = 0;
+    size_t psz = 0;
+    ++poolUsageCounter;
+
+    for(size_t i = 0; i<chunksCount; i++){
+        pu += chunks[i]->pos;
+        psz += chunks[i]->size;
+        chunks[i]->pos = 0;
+    }
+    poolUsage=(poolUsage>pu)?poolUsage:pu;
+
+    if(poolUsageCounter >= 10 && chunksCount > 1){
+        psz -= chunks[chunksCount-1]->size;
+        if(poolUsage < psz){
+            --chunksCount;
+            delete chunks[chunksCount];
+        }
+        poolUsage = 0;
+        poolUsageCounter = 0;
+    }
+}
+
+void * AsyncDNSMemPool::calloc(size_t size)
+{
+    return ::memset(this->alloc(size), 0, size);
+}
+
+char * AsyncDNSMemPool::strdup(const char *str)
+{
+    return ::strcpy((char*)this->alloc(strlen(str)+1), str);
+}
diff --git a/src/shared/Config/dotconfpp/mempool.h b/src/shared/Config/dotconfpp/mempool.h
new file mode 100644
index 00000000000..04bd1e006ad
--- /dev/null
+++ b/src/shared/Config/dotconfpp/mempool.h
@@ -0,0 +1,46 @@
+
+
+
+#ifndef ASYNC_DNS_MEMPOOL_H
+#define ASYNC_DNS_MEMPOOL_H
+
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#undef free
+#undef calloc
+#undef strdup
+
+class AsyncDNSMemPool
+{
+private:
+    struct PoolChunk {
+        void * pool;
+        size_t pos;
+        size_t size;
+
+        PoolChunk(size_t _size);
+        ~PoolChunk();
+    };
+    PoolChunk ** chunks;
+    size_t chunksCount;
+    size_t defaultSize;
+
+    size_t poolUsage;
+    size_t poolUsageCounter;
+
+    void addNewChunk(size_t size);
+
+public:
+    AsyncDNSMemPool(size_t _defaultSize = 4096);
+    virtual ~AsyncDNSMemPool();
+
+    int initialize();
+    void free();
+    void * alloc(size_t size);
+    void * calloc(size_t size);
+    char * strdup(const char *str);
+};
+
+#endif