fixxxx

1 files changed, 1 insertions, 1 deletions

diff --git a/pwmanager/pwmanager/pwmdoc.cpp b/pwmanager/pwmanager/pwmdoc.cpp
index 36b0df5..1f3c58b 100644
--- a/pwmanager/pwmanager/pwmdoc.cpp
+++ b/pwmanager/pwmanager/pwmdoc.cpp
@@ -55,769 +55,769 @@
 #include <string.h>
 //US#include <iostream>
 #include <algorithm>
 #include <sys/types.h>
 #include <sys/stat.h>
 #ifndef _WIN32_
 #include <unistd.h>
 #include <stdint.h>
 #endif
 
 #ifdef PWM_EMBEDDED
 #ifndef Q_LONG
 #define Q_LONG long
 #endif
 
 #ifndef Q_ULONG
 #define Q_ULONG unsigned long
 #endif
 #endif //PWM_EMBEDDED
 
 
 //TODO: reset to its normal value.
 //LR set to 5 min 
         #define META_CHECK_TIMER_INTERVAL300 /* 10 300*/ /* sek */
 
 using namespace std;
 
 
 void PwMDocList::add(PwMDoc *doc, const string &id)
 {
 #ifdef PWM_DEBUG
         // check for existance of object in debug mode only.
         vector<listItem>::iterator begin = docList.begin(),
                                    end = docList.end(),
                                    i = begin;
         while (i != end) {
                 if (i->doc == doc) {
                         BUG();
                         return;
                 }
                 ++i;
         }
 #endif
         listItem newItem;
         newItem.doc = doc;
         newItem.docId = id;
         docList.push_back(newItem);
 }
 
 void PwMDocList::edit(PwMDoc *doc, const string &newId)
 {
         vector<listItem>::iterator begin = docList.begin(),
                                    end = docList.end(),
                                    i = begin;
         while (i != end) {
                 if (i->doc == doc) {
                         i->docId = newId;
                         return;
                 }
                 ++i;
         }
 }
 
 void PwMDocList::del(PwMDoc *doc)
 {
         vector<listItem>::iterator begin = docList.begin(),
                                    end = docList.end(),
                                    i = begin;
         while (i != end) {
                 if (i->doc == doc) {
                         docList.erase(i);
                         return;
                 }
                 ++i;
         }
 }
 
 bool PwMDocList::find(const string &id, listItem *ret)
 {
         vector<listItem>::iterator begin = docList.begin(),
                                    end = docList.end(),
                                    i = begin;
         while (i != end) {
                 if (i->docId == id) {
                         if (ret)
                                 *ret = *i;
                         return true;
                 }
                 ++i;
         }
         return false;
 }
 
 
 
 DocTimer::DocTimer(PwMDoc *_doc)
  : doc (_doc)
  , mpwLock (0)
  , autoLockLock (0)
  , metaCheckLock (0)
 {
         mpwTimer = new QTimer;
         autoLockTimer = new QTimer;
         metaCheckTimer = new QTimer;
         connect(mpwTimer, SIGNAL(timeout()),
                 this, SLOT(mpwTimeout()));
         connect(autoLockTimer, SIGNAL(timeout()),
                 this, SLOT(autoLockTimeout()));
         connect(metaCheckTimer, SIGNAL(timeout()),
                 this, SLOT(metaCheckTimeout()));
 }
 
 DocTimer::~DocTimer()
 {
         delete mpwTimer;
         delete autoLockTimer;
         delete metaCheckTimer;
 }
 
 void DocTimer::start(TimerIDs timer)
 {
         switch (timer) {
                 case id_mpwTimer:
                         if (mpwTimer->isActive())
                                 mpwTimer->stop();
                         doc->setDocStatFlag(DOC_STAT_UNLOCK_WITHOUT_PW);
                         mpwTimer->start(conf()->confGlobPwTimeout() * 1000, true);
                         break;
                 case id_autoLockTimer:
                         if (autoLockTimer->isActive())
                                 autoLockTimer->stop();
                         if (conf()->confGlobLockTimeout() > 0)
                                 autoLockTimer->start(conf()->confGlobLockTimeout() * 1000, true);
                         break;
                 case id_metaCheckTimer:
                         if (metaCheckTimer->isActive())
                                 metaCheckTimer->stop();
                         metaCheckTimer->start(META_CHECK_TIMER_INTERVAL * 1000, true);
                         break;
         }
 }
 
 void DocTimer::stop(TimerIDs timer)
 {
         switch (timer) {
                 case id_mpwTimer:
                         mpwTimer->stop();
                         break;
                 case id_autoLockTimer:
                         autoLockTimer->stop();
                         break;
                 case id_metaCheckTimer:
                         metaCheckTimer->stop();
                         break;
         }
 }
 
 void DocTimer::getLock(TimerIDs timer)
 {
         switch (timer) {
                 case id_mpwTimer:
                         ++mpwLock;
                         break;
                 case id_autoLockTimer:
                         ++autoLockLock;
                         break;
                 case id_metaCheckTimer:
                         ++metaCheckLock;
                         break;
         }
 }
 
 void DocTimer::putLock(TimerIDs timer)
 {
         switch (timer) {
                 case id_mpwTimer:
                         if (mpwLock)
                                 --mpwLock;
                         break;
                 case id_autoLockTimer:
                         if (autoLockLock)
                                 --autoLockLock;
                         break;
                 case id_metaCheckTimer:
                         if (metaCheckLock)
                                 --metaCheckLock;
                         break;
         }
 }
 
 void DocTimer::mpwTimeout()
 {
         if (mpwLock) {
                 mpwTimer->start(1000, true);
                 return;
         }
         doc->unsetDocStatFlag(DOC_STAT_UNLOCK_WITHOUT_PW);
 }
 
 void DocTimer::autoLockTimeout()
 {
         if (autoLockLock) {
                 autoLockTimer->start(1000, true);
                 return;
         }
         if (conf()->confGlobAutoDeepLock() &&
             doc->filename != QString::null &&
             doc->filename != "") {
                 doc->deepLock(true);
         } else {
                 doc->lockAll(true);
         }
 }
 
 void DocTimer::metaCheckTimeout()
 {
         if (metaCheckLock) {
                 // check again in one second.
                 metaCheckTimer->start(1000, true);
                 return;
         }
         if (doc->isDeepLocked()) {
                 metaCheckTimer->start(META_CHECK_TIMER_INTERVAL * 1000, true);
                 return;
         }
         if (doc->isDocEmpty()) {
                 metaCheckTimer->start(META_CHECK_TIMER_INTERVAL * 1000, true);
                 return;
         }
 #ifdef CONFIG_KWALLETIF
         KWalletEmu *kwlEmu = doc->init->kwalletEmu();
         if (kwlEmu)
                 kwlEmu->suspendDocSignals();
 #endif // CONFIG_KWALLETIF
         /* We simply trigger all views to update their
          * displayed values. This way they have a chance
          * to get notified when some meta changes over time.
          * (for example an entry expired).
          * The _view_ is responsive for not updating its
          * contents if nothing really changed!
          */
         emit doc->dataChanged(doc);
 #ifdef CONFIG_KWALLETIF
         if (kwlEmu)
                 kwlEmu->resumeDocSignals();
 #endif // CONFIG_KWALLETIF
         metaCheckTimer->start(META_CHECK_TIMER_INTERVAL * 1000, true);
 }
 
 
 
 PwMDocList PwMDoc::openDocList;
 unsigned int PwMDocList::unnamedDocCnt = 1;
 
 PwMDoc::PwMDoc(QObject *parent, const char *name)
  : PwMDocUi(parent, name)
  , dataChangedLock (0)
 {
         deleted = false;
         unnamedNum = 0;
         getOpenDocList()->add(this, getTitle().latin1());
         curDocStat = 0;
         setMaxNumEntries();
         _timer = new DocTimer(this);
         timer()->start(DocTimer::id_mpwTimer);
         timer()->start(DocTimer::id_autoLockTimer);
         timer()->start(DocTimer::id_metaCheckTimer);
         addCategory(DEFAULT_CATEGORY, 0, false);
         listView = 0;
         emit docCreated(this);
 }
 
 PwMDoc::~PwMDoc()
 {
         emit docClosed(this);
         getOpenDocList()->del(this);
         delete _timer;
 }
 
 PwMerror PwMDoc::saveDoc(char compress, const QString *file)
 {
         PwMerror ret, e;
         string serialized;
         QFile f;
         QString tmpFileMoved(QString::null);
         bool wasDeepLocked;
         QString savedFilename(filename);
 
         if (!file) {
                 if (filename == "")
                         return e_filename;
                 if (isDeepLocked()) {
                   /* We don't need to save any data.
                    * It's already all on disk, because
                    * we are deeplocked.
                    */
                   unsetDocStatFlag(DOC_STAT_DISK_DIRTY);
                   ret = e_success;
           return ret;
                 }
          } else {
                 if (*file == "" && filename == "")
                         return e_filename;
                 if (*file != "")
                         filename = *file;
         }
 
         wasDeepLocked = isDeepLocked();
         if (wasDeepLocked) {
           /* We are deeplocked. That means all data is already
            * on disk. BUT we need to do saving procedure,
            * because *file != savedFilename.
            * Additionally we need to tempoarly restore
            * the old "filename", because deepLock() references it.
            */
           QString newFilename(filename);
           filename = savedFilename;
           getDataChangedLock();
           e = deepLock(false);
           putDataChangedLock();
           filename = newFilename;
           switch (e) {
              case e_success:
                break;
              case e_wrongPw:
              case e_noPw:
                emitDataChanged(this);
                return e;
              default:
                emitDataChanged(this);
                return e_openFile;
           }
         }
 
         if (!isPwAvailable()) {
                 /* password is not available. This means, the
                  * document wasn't saved, yet.
                  */
                 bool useChipcard = getDocStatFlag(DOC_STAT_USE_CHIPCARD);
                 QString pw(requestNewMpw(&useChipcard));
                 if (pw != "") {
                         currentPw = pw;
                 } else {
                         return e_noPw;
                 }
                 if (useChipcard) {
                         setDocStatFlag(DOC_STAT_USE_CHIPCARD);
                 } else {
                         unsetDocStatFlag(DOC_STAT_USE_CHIPCARD);
                 }
         }
 
         int _cryptAlgo = conf()->confGlobCryptAlgo();
         int _hashAlgo = conf()->confGlobHashAlgo();
 
         // sanity check for the selected algorithms
         if (_cryptAlgo < PWM_CRYPT_BLOWFISH ||
             _cryptAlgo > PWM_CRYPT_TWOFISH128) {
                 printWarn("Invalid Crypto-Algorithm selected! "
                           "Config-file seems to be corrupt. "
                           "Falling back to Blowfish.");
                 _cryptAlgo = PWM_CRYPT_BLOWFISH;
         }
         if (_hashAlgo < PWM_HASH_SHA1 ||
             _hashAlgo > PWM_HASH_TIGER) {
                 printWarn("Invalid Hash-Algorithm selected! "
                           "Config-file seems to be corrupt. "
                           "Falling back to SHA1.");
                 _hashAlgo = PWM_HASH_SHA1;
         }
         char cryptAlgo = static_cast<char>(_cryptAlgo);
         char hashAlgo = static_cast<char>(_hashAlgo);
 
         if (conf()->confGlobMakeFileBackup()) {
                 if (!backupFile(filename))
                         return e_fileBackup;
         }
     int mLastBackupDate = 0;
     KConfig configGlobal (locateLocal("config","pwmanagerbuprc"));
     QFileInfo fileInfo ( filename );
     mLastBackupDate = configGlobal.readNumEntry( "LastBackupDate-"+ fileInfo.fileName (), 0 );
       KConfig config (locateLocal("config","microkdeglobalrc"));
       config.setGroup( "BackupSettings" );
       bool b_enabled =   config.readBoolEntry( "BackupEnabled" );
-      if ( b_enabled ) {
+      if ( b_enabled && QFile::exists(filename)) {
           int num = config.readNumEntry( "BackupNumbers" );
           int d_count = config.readNumEntry( "BackupDayCount" );
           bool stdDir = config.readBoolEntry( "BackupUseDefaultDir" );
           QString bupDir = config.readEntry( "BackupDatadir" );
           QDate reference ( 2000,1,1 );
           int daysTo = reference.daysTo ( QDate::currentDate() ); 
           bool saveDate = false;
           if ( daysTo - d_count >= mLastBackupDate ) {
                 qDebug("KA: Last backup was %d days ago ", daysTo - mLastBackupDate );
                 if ( stdDir )
                     bupDir = KGlobalSettings::backupDataDir();
                 int retval =  KApplication::createBackup(  filename, bupDir, num );
                 if ( retval == 0 ) {
                     qDebug("KO: Backup cancelled. Will try again tomorrow ");
                     // retval == 0 : backup skipped for today, try again tomorrow
                     mLastBackupDate = daysTo - d_count+1;
                     saveDate = true;
                 } else if ( retval == 1 ){
                     qDebug("KO: Backup created.");
                     // backup ok
                     mLastBackupDate =  daysTo;
                     saveDate = true;
                 } else if ( retval == 2 ){
                     qDebug("KO: Backup globally cancelled.");
                     // backup globally cancelled
                     b_enabled = false;
                 }
                 if ( !b_enabled ) {
                     config.writeEntry( "mBackupEnabled", false );
                 }
                 if ( saveDate ) {
                     configGlobal.writeEntry( "LastBackupDate-"+ fileInfo.fileName (), mLastBackupDate );
                 }
           }
       }
         if (QFile::exists(filename)) {
                 /* Move the existing file to some tmp file.
                  * When saving file succeeds, delete tmp file. Otherwise
                  * move tmp file back. See below.
                  */
                 Randomizer *rnd = Randomizer::obj();
                 char rnd_buf[5];
                 sprintf(rnd_buf, "%X%X%X%X", rnd->genRndChar() & 0xFF, rnd->genRndChar() & 0xFF,
                         rnd->genRndChar() & 0xFF, rnd->genRndChar() & 0xFF);
                 tmpFileMoved = filename + "." + rnd_buf + ".mv";
                 if (!copyFile(filename, tmpFileMoved))
                         return e_openFile;
                 if (!QFile::remove(filename)) {
                         printWarn(string("removing orig file ")
                                   + filename.latin1()
                                   + " failed!");
                 }
         }
         f.setName(filename);
         if (!f.open(IO_ReadWrite)) {
                 ret = e_openFile;
                 goto out_moveback;
         }
         e = writeFileHeader(hashAlgo, hashAlgo,
                             cryptAlgo, compress,
                             &currentPw, &f);
         if (e == e_hashNotImpl) {
                 printDebug("PwMDoc::saveDoc(): writeFileHeader() failed: e_hashNotImpl");
                 f.close();
                 ret = e_hashNotImpl;
                 goto out_moveback;
         } else if (e != e_success) {
                 printDebug("PwMDoc::saveDoc(): writeFileHeader() failed");
                 f.close();
                 ret = e_writeHeader;
                 goto out_moveback;
         }
         if (!serializeDta(&serialized)) {
                 printDebug("PwMDoc::saveDoc(): serializeDta() failed");
                 f.close();
                 ret = e_serializeDta;
                 goto out_moveback;
         }
         e = writeDataHash(hashAlgo, &serialized, &f);
         if (e == e_hashNotImpl) {
                 printDebug("PwMDoc::saveDoc(): writeDataHash() failed: e_hashNotImpl");
                 f.close();
                 ret = e_hashNotImpl;
                 goto out_moveback;
         } else if (e != e_success) {
                 printDebug("PwMDoc::saveDoc(): writeDataHash() failed");
                 f.close();
                 ret = e_writeHeader;
                 goto out_moveback;
         }
         if (!compressDta(&serialized, compress)) {
                 printDebug("PwMDoc::saveDoc(): compressDta() failed");
                 f.close();
                 ret = e_enc;
                 goto out_moveback;
         }
         e = encrypt(&serialized, &currentPw, &f, cryptAlgo, hashAlgo);
         if (e == e_weakPw) {
                 printDebug("PwMDoc::saveDoc(): encrypt() failed: e_weakPw");
                 f.close();
                 ret = e_weakPw;
                 goto out_moveback;
         } else if (e == e_cryptNotImpl) {
                 printDebug("PwMDoc::saveDoc(): encrypt() failed: e_cryptNotImpl");
                 f.close();
                 ret = e_cryptNotImpl;
                 goto out_moveback;
         } else if (e != e_success) {
                 printDebug("PwMDoc::saveDoc(): encrypt() failed");
                 f.close();
                 ret = e_enc;
                 goto out_moveback;
         }
         unsetDocStatFlag(DOC_STAT_DISK_DIRTY);
         f.close();
 #ifndef _WIN32_
         if (chmod(filename.latin1(),
                   conf()->confGlobFilePermissions())) {
                 printWarn(string("chmod failed: ") + strerror(errno));
         }
 #endif
         openDocList.edit(this, getTitle().latin1());
         if (wasDeepLocked) {
           /* Do _not_ save the data with the deepLock()
            * call, because this will recurse
            * into saveDoc()
            */
           deepLock(true, false);
           /* We don't check return value here, because
            * it won't fail. See NOTE in deepLock()
            */
                 }
         if (tmpFileMoved != QString::null) {
                 // now remove the moved file.
                 if (!QFile::remove(tmpFileMoved)) {
                         printWarn(string("removing file ")
                                   + tmpFileMoved.latin1()
                                   + " failed!");
                 }
         }
         ret = e_success;
         printDebug(string("writing file { name: ")
                    + filename.latin1() + "   compress: "
                    + tostr(static_cast<int>(compress)) + "   cryptAlgo: "
                    + tostr(static_cast<int>(cryptAlgo)) + "   hashAlgo: "
                    + tostr(static_cast<int>(hashAlgo))
                    + " }");
         goto out;
 out_moveback:
         if (tmpFileMoved != QString::null) {
                 if (copyFile(tmpFileMoved, filename)) {
                         if (!QFile::remove(tmpFileMoved)) {
                                 printWarn(string("removing tmp file ")
                                           + filename.latin1()
                                           + " failed!");
                         }
                 } else {
                         printWarn(string("couldn't copy file ")
                                   + tmpFileMoved.latin1()
                                   + " back to "
                                   + filename.latin1());
                 }
         }
 out:
         return ret;
 }
 
 PwMerror PwMDoc::openDoc(const QString *file, int openLocked)
 {
         PWM_ASSERT(file);
         PWM_ASSERT(openLocked == 0 || openLocked == 1 || openLocked == 2);
         string decrypted, dataHash;
         PwMerror ret;
         char cryptAlgo, dataHashType, compress;
         unsigned int headerLen;
 
         if (*file == "")
                 return e_readFile;
         filename = *file;
         /* check if this file is already open.
          * This does not catch symlinks!
          */
         if (!isDeepLocked()) {
                 if (getOpenDocList()->find(filename.latin1()))
                         return e_alreadyOpen;
         }
         QFile f(filename);
 
         if (openLocked == 2) {
                 // open deep-locked
                 if (!QFile::exists(filename))
                         return e_openFile;
                 if (deepLock(true, false) != e_success)
                         return e_openFile;
                 goto out_success;
         }
 
         if (!f.open(IO_ReadOnly))
                 return e_openFile;
 
         ret = checkHeader(&cryptAlgo, &currentPw, &compress, &headerLen,
                           &dataHashType, &dataHash, &f);
         if (ret != e_success) {
                 printDebug("PwMDoc::openDoc(): checkHeader() failed");
                 f.close();
                 if (ret == e_wrongPw) {
                         wrongMpwMsgBox(getDocStatFlag(DOC_STAT_USE_CHIPCARD));
                         return ret;
                 } else if (ret == e_noPw ||
                            ret == e_fileVer ||
                            ret == e_fileFormat ||
                            ret == e_hashNotImpl) {
                         return ret;
                 } else
                         return e_readFile;
         }
         ret = decrypt(&decrypted, headerLen, &currentPw, cryptAlgo, dataHashType, &f);
         if (ret == e_cryptNotImpl) {
                 printDebug("PwMDoc::openDoc(): decrypt() failed: e_cryptNotImpl");
                 f.close();
                 return e_cryptNotImpl;
         } else if (ret != e_success) {
                 printDebug("PwMDoc::openDoc(): decrypt() failed");
                 f.close();
                 return e_readFile;
         }
         if (!decompressDta(&decrypted, compress)) {
                 printDebug("PwMDoc::openDoc(): decompressDta() failed");
                 f.close();
                 return e_fileCorrupt;
         }
         ret = checkDataHash(dataHashType, &dataHash, &decrypted);
         if (ret == e_hashNotImpl) {
                 printDebug("PwMDoc::openDoc(): checkDataHash() failed: e_hashNotImpl");
                 f.close();
                 return e_hashNotImpl;
         } else if (ret != e_success) {
                 printDebug("PwMDoc::openDoc(): checkDataHash() failed");
                 f.close();
                 return e_fileCorrupt;
         }
         if (!deSerializeDta(&decrypted, openLocked == 1)) {
                 printDebug("PwMDoc::openDoc(): deSerializeDta() failed");
                 f.close();
                 return e_readFile;
         }
         f.close();
         timer()->start(DocTimer::id_mpwTimer);
         timer()->start(DocTimer::id_autoLockTimer);
 out_success:
         openDocList.edit(this, getTitle().latin1());
         emit docOpened(this);
         return e_success;
 }
 
 PwMerror PwMDoc::writeFileHeader(char keyHash, char dataHash, char crypt, char compress,
                                  QString *pw, QFile *f)
 {
         PWM_ASSERT(pw);
         PWM_ASSERT(f);
         //US ENH: or maybe a bug: checking here for listView does not make sense because we do not check anywhere else
         //Wenn I sync, I open a doc without a view => listView is 0 => Assertion 
                 //USPWM_ASSERT(listView);
         if (f->writeBlock(FILE_ID_HEADER, strlen(FILE_ID_HEADER)) !=
             static_cast<Q_LONG>(strlen(FILE_ID_HEADER))) {
                 return e_writeFile;
         }
         if (f->putch(PWM_FILE_VER) == -1 ||
             f->putch(keyHash) == -1 ||
             f->putch(dataHash) == -1 ||
             f->putch(crypt) == -1 ||
             f->putch(compress) == -1 ||
             f->putch((getDocStatFlag(DOC_STAT_USE_CHIPCARD)) ?
                      (static_cast<char>(0x01)) : (static_cast<char>(0x00))) == -1) {
                 return e_writeFile;
         }
 
         // write bytes of NUL-data. These bytes are reserved for future-use.
         const int bufSize = 64;
         char tmp_buf[bufSize];
         memset(tmp_buf, 0x00, bufSize);
         if (f->writeBlock(tmp_buf, bufSize) != bufSize)
                 return e_writeFile;
 
         switch (keyHash) {
         case PWM_HASH_SHA1: {
                 const int hashlen = SHA1_HASH_LEN_BYTE;
                 Sha1 hash;
                 hash.sha1_write(reinterpret_cast<const byte *>(pw->latin1()), pw->length());
                 string ret = hash.sha1_read();
                 if (f->writeBlock(ret.c_str(), hashlen) != hashlen)
                         return e_writeFile;
                 break;
         } 
         case PWM_HASH_SHA256:
                 /*... fall through */
         case PWM_HASH_SHA384:
         case PWM_HASH_SHA512:
         case PWM_HASH_MD5:
         case PWM_HASH_RMD160:
         case PWM_HASH_TIGER:
             {
                 if (!LibGCryptIf::available())
                         return e_hashNotImpl;
                 LibGCryptIf gc;
                 PwMerror err;
                 unsigned char *buf;
                 size_t hashLen;
                 err = gc.hash(&buf,
                               &hashLen,
                               reinterpret_cast<const unsigned char *>(pw->latin1()),
                               pw->length(),
                               keyHash);
                 if (err != e_success)
                         return e_hashNotImpl;
                 if (f->writeBlock(reinterpret_cast<const char *>(buf), hashLen)
                     != static_cast<Q_LONG>(hashLen)) {
                         delete [] buf;
                         return e_hashNotImpl;
                 }
                 delete [] buf;
                 break;
         } 
         default: {
                 return e_hashNotImpl;
         } }
         return e_success;
 }
 
 PwMerror PwMDoc::checkHeader(char *cryptAlgo, QString *pw, char *compress,
                              unsigned int *headerLength, char *dataHashType,
                              string *dataHash, QFile *f)
 {
         PWM_ASSERT(cryptAlgo);
         PWM_ASSERT(pw);
         PWM_ASSERT(headerLength);
         PWM_ASSERT(dataHashType);
         PWM_ASSERT(dataHash);
         PWM_ASSERT(f);
         int tmpRet;
         // check "magic" header
         const char magicHdr[] = FILE_ID_HEADER;
         const int hdrLen = array_size(magicHdr) - 1;
         char tmp[hdrLen];
         if (f->readBlock(tmp, hdrLen) != hdrLen)
                 return e_readFile;
         if (memcmp(tmp, magicHdr, hdrLen) != 0)
                 return e_fileFormat;
         // read and check file ver
         int fileV = f->getch();
         if (fileV == -1)
                 return e_fileFormat;
         if (fileV != PWM_FILE_VER)
                 return e_fileVer;
         // read hash hash type
         int keyHash = f->getch();
         if (keyHash == -1)
                 return e_fileFormat;
         // read data hash type
         tmpRet = f->getch();
         if (tmpRet == -1)
                 return e_fileFormat;
         *dataHashType = tmpRet;
         // read crypt algo
         tmpRet = f->getch();
         if (tmpRet == -1)
                 return e_fileFormat;
         *cryptAlgo = tmpRet;
         // get compression-algo
         tmpRet = f->getch();
         if (tmpRet == -1)
                 return e_fileFormat;
         *compress = tmpRet;
         // get the MPW-flag
         int mpw_flag = f->getch();
         if (mpw_flag == -1)
                 return e_fileFormat;
         if (mpw_flag == 0x01)
                 setDocStatFlag(DOC_STAT_USE_CHIPCARD);
         else
                 unsetDocStatFlag(DOC_STAT_USE_CHIPCARD);
         // skip the "RESERVED"-bytes
         if (!(f->at(f->at() + 64)))
                 return e_fileFormat;