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Annotation of truecrypt/platform/filecommon.cpp, revision 1.1

1.1     ! root        1: /*
        !             2:  Copyright (c) 2008 TrueCrypt Foundation. All rights reserved.
        !             3: 
        !             4:  Governed by the TrueCrypt License 2.4 the full text of which is contained
        !             5:  in the file License.txt included in TrueCrypt binary and source code
        !             6:  distribution packages.
        !             7: */
        !             8: 
        !             9: #include "File.h"
        !            10: #ifdef TC_UNIX
        !            11: #include <sys/types.h>
        !            12: #include <sys/stat.h>
        !            13: #include <unistd.h>
        !            14: #include <utime.h>
        !            15: #endif
        !            16: 
        !            17: namespace TrueCrypt
        !            18: {
        !            19:        File::~File ()
        !            20:        {
        !            21:                if (FileIsOpen)
        !            22:                        Close();
        !            23:        }
        !            24: 
        !            25:        void File::Copy (const FilePath &sourcePath, const FilePath &destinationPath, bool preserveTimestamps)
        !            26:        {
        !            27:                File source;
        !            28:                source.Open (sourcePath);
        !            29: 
        !            30:                File destination;
        !            31:                destination.Open (destinationPath, CreateWrite);
        !            32: 
        !            33:                SecureBuffer buffer (OptimalReadSize);
        !            34:                uint64 len;
        !            35: 
        !            36:                while ((len = source.Read (buffer)) > 0)
        !            37:                {
        !            38:                        destination.Write (buffer, static_cast <size_t> (len));
        !            39:                }
        !            40: 
        !            41:                if (preserveTimestamps)
        !            42:                {
        !            43:                        destination.Flush();
        !            44: #ifndef TC_WINDOWS
        !            45:                        struct stat statData;
        !            46:                        throw_sys_sub_if (stat (string (sourcePath).c_str(), &statData) == -1, wstring (sourcePath));
        !            47: 
        !            48:                        struct utimbuf u;
        !            49:                        u.actime = statData.st_atime;
        !            50:                        u.modtime = statData.st_mtime;
        !            51:                        throw_sys_sub_if (utime (string (destinationPath).c_str(), &u) == -1, wstring (destinationPath));
        !            52: #endif
        !            53:                }
        !            54:        }
        !            55:        
        !            56:        FilePath File::GetPath () const
        !            57:        {
        !            58:                if_debug (ValidateState());
        !            59:                return Path;
        !            60:        }
        !            61: 
        !            62:        void File::ReadCompleteBuffer (const BufferPtr &buffer) const
        !            63:        {
        !            64:                size_t dataLeft = buffer.Size();
        !            65:                size_t offset = 0;
        !            66: 
        !            67:                while (dataLeft > 0)
        !            68:                {
        !            69:                        size_t dataRead = static_cast <size_t> (Read (buffer.GetRange (offset, dataLeft)));
        !            70:                        if (dataRead == 0)
        !            71:                                throw InsufficientData (SRC_POS);
        !            72: 
        !            73:                        dataLeft -= dataRead;
        !            74:                        offset += dataRead;
        !            75:                }
        !            76:        }
        !            77:        
        !            78:        void File::ValidateState () const
        !            79:        {
        !            80:                if (!FileIsOpen)
        !            81:                        throw NotInitialized (SRC_POS);
        !            82:        }
        !            83: }

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