diff options
Diffstat (limited to 'apt-pkg/contrib')
| -rw-r--r-- | apt-pkg/contrib/error.h | 41 | ||||
| -rw-r--r-- | apt-pkg/contrib/fileutl.cc | 191 | ||||
| -rw-r--r-- | apt-pkg/contrib/fileutl.h | 4 | ||||
| -rw-r--r-- | apt-pkg/contrib/gpgv.cc | 2 | ||||
| -rw-r--r-- | apt-pkg/contrib/gpgv.h | 15 | ||||
| -rw-r--r-- | apt-pkg/contrib/sha2_internal.cc | 12 | ||||
| -rw-r--r-- | apt-pkg/contrib/strutl.cc | 5 |
7 files changed, 152 insertions, 118 deletions
diff --git a/apt-pkg/contrib/error.h b/apt-pkg/contrib/error.h index 21c51c1be..7d09b2d4a 100644 --- a/apt-pkg/contrib/error.h +++ b/apt-pkg/contrib/error.h @@ -123,6 +123,25 @@ public: /*{{{*/ bool InsertErrno(MsgType const &type, const char* Function, const char* Description,...) __like_printf(4) __cold; + /** \brief adds an errno message with the given type + * + * args needs to be initialized with va_start and terminated + * with va_end by the caller. msgSize is also an out-parameter + * in case the msgSize was not enough to store the complete message. + * + * \param type of the error message + * \param Function which failed + * \param Description is the format string for args + * \param args list from a printf-like function + * \param errsv is the errno the error is for + * \param msgSize is the size of the char[] used to store message + * \return true if the message was added, false if not - the caller + * should call this method again in that case + */ + bool InsertErrno(MsgType type, const char* Function, + const char* Description, va_list &args, + int const errsv, size_t &msgSize); + /** \brief add an fatal error message to the list * * Most of the stuff we consider as "error" is also "fatal" for @@ -185,6 +204,22 @@ public: /*{{{*/ */ bool Insert(MsgType const &type, const char* Description,...) __like_printf(3) __cold; + /** \brief adds an error message with the given type + * + * args needs to be initialized with va_start and terminated + * with va_end by the caller. msgSize is also an out-parameter + * in case the msgSize was not enough to store the complete message. + * + * \param type of the error message + * \param Description is the format string for args + * \param args list from a printf-like function + * \param msgSize is the size of the char[] used to store message + * \return true if the message was added, false if not - the caller + * should call this method again in that case + */ + bool Insert(MsgType type, const char* Description, + va_list &args, size_t &msgSize) __cold; + /** \brief is an error in the list? * * \return \b true if an error is included in the list, \b false otherwise @@ -305,12 +340,6 @@ private: /*{{{*/ }; std::list<MsgStack> Stacks; - - bool InsertErrno(MsgType type, const char* Function, - const char* Description, va_list &args, - int const errsv, size_t &msgSize); - bool Insert(MsgType type, const char* Description, - va_list &args, size_t &msgSize); /*}}}*/ }; /*}}}*/ diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc index 46661887a..0f88923cf 100644 --- a/apt-pkg/contrib/fileutl.cc +++ b/apt-pkg/contrib/fileutl.cc @@ -184,7 +184,8 @@ bool RunScripts(const char *Cnf) /* The caller is expected to set things so that failure causes erasure */ bool CopyFile(FileFd &From,FileFd &To) { - if (From.IsOpen() == false || To.IsOpen() == false) + if (From.IsOpen() == false || To.IsOpen() == false || + From.Failed() == true || To.Failed() == true) return false; // Buffered copy between fds @@ -861,7 +862,7 @@ bool FileFd::Open(string FileName,unsigned int const Mode,CompressMode Compress, return Open(FileName, ReadOnly, Gzip, Perms); if (Compress == Auto && (Mode & WriteOnly) == WriteOnly) - return _error->Error("Autodetection on %s only works in ReadOnly openmode!", FileName.c_str()); + return FileFdError("Autodetection on %s only works in ReadOnly openmode!", FileName.c_str()); std::vector<APT::Configuration::Compressor> const compressors = APT::Configuration::getCompressors(); std::vector<APT::Configuration::Compressor>::const_iterator compressor = compressors.begin(); @@ -914,17 +915,17 @@ bool FileFd::Open(string FileName,unsigned int const Mode,CompressMode Compress, case Auto: case Extension: // Unreachable - return _error->Error("Opening File %s in None, Auto or Extension should be already handled?!?", FileName.c_str()); + return FileFdError("Opening File %s in None, Auto or Extension should be already handled?!?", FileName.c_str()); } for (; compressor != compressors.end(); ++compressor) if (compressor->Name == name) break; if (compressor == compressors.end()) - return _error->Error("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str()); + return FileFdError("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str()); } if (compressor == compressors.end()) - return _error->Error("Can't find a match for specified compressor mode for file %s", FileName.c_str()); + return FileFdError("Can't find a match for specified compressor mode for file %s", FileName.c_str()); return Open(FileName, Mode, *compressor, Perms); } bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor, unsigned long const Perms) @@ -933,9 +934,9 @@ bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Co Flags = AutoClose; if ((Mode & WriteOnly) != WriteOnly && (Mode & (Atomic | Create | Empty | Exclusive)) != 0) - return _error->Error("ReadOnly mode for %s doesn't accept additional flags!", FileName.c_str()); + return FileFdError("ReadOnly mode for %s doesn't accept additional flags!", FileName.c_str()); if ((Mode & ReadWrite) == 0) - return _error->Error("No openmode provided in FileFd::Open for %s", FileName.c_str()); + return FileFdError("No openmode provided in FileFd::Open for %s", FileName.c_str()); if ((Mode & Atomic) == Atomic) { @@ -981,7 +982,7 @@ bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Co close (iFd); iFd = -1; } - return _error->Errno("open",_("Could not open file %s"), FileName.c_str()); + return FileFdErrno("open",_("Could not open file %s"), FileName.c_str()); } SetCloseExec(iFd,true); @@ -1010,14 +1011,19 @@ bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, CompressMode Compre case Xz: name = "xz"; break; case Auto: case Extension: - return _error->Error("Opening Fd %d in Auto or Extension compression mode is not supported", Fd); + if (AutoClose == true && Fd != -1) + close(Fd); + return FileFdError("Opening Fd %d in Auto or Extension compression mode is not supported", Fd); } for (; compressor != compressors.end(); ++compressor) if (compressor->Name == name) break; if (compressor == compressors.end()) - return _error->Error("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str()); - + { + if (AutoClose == true && Fd != -1) + close(Fd); + return FileFdError("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str()); + } return OpenDescriptor(Fd, Mode, *compressor, AutoClose); } bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration::Compressor const &compressor, bool AutoClose) @@ -1039,11 +1045,21 @@ bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration: else iFd = Fd; this->FileName = ""; - if (OpenInternDescriptor(Mode, compressor) == false) + if (Fd == -1 || OpenInternDescriptor(Mode, compressor) == false) { - if (AutoClose) + if (iFd != -1 && ( +#ifdef HAVE_ZLIB + compressor.Name == "gzip" || +#endif +#ifdef HAVE_BZ2 + compressor.Name == "bzip2" || +#endif + AutoClose == true)) + { close (iFd); - return _error->Errno("gzdopen",_("Could not open file descriptor %d"), Fd); + iFd = -1; + } + return FileFdError(_("Could not open file descriptor %d"), Fd); } return true; } @@ -1105,10 +1121,7 @@ bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::C ExecWait(d->compressor_pid, "FileFdCompressor", true); if ((Mode & ReadWrite) == ReadWrite) - { - Flags |= Fail; - return _error->Error("ReadWrite mode is not supported for file %s", FileName.c_str()); - } + return FileFdError("ReadWrite mode is not supported for file %s", FileName.c_str()); bool const Comp = (Mode & WriteOnly) == WriteOnly; if (Comp == false) @@ -1131,10 +1144,7 @@ bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::C // Create a data pipe int Pipe[2] = {-1,-1}; if (pipe(Pipe) != 0) - { - Flags |= Fail; - return _error->Errno("pipe",_("Failed to create subprocess IPC")); - } + return FileFdErrno("pipe",_("Failed to create subprocess IPC")); for (int J = 0; J != 2; J++) SetCloseExec(Pipe[J],true); @@ -1244,14 +1254,13 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual) { if (errno == EINTR) continue; - Flags |= Fail; #ifdef HAVE_ZLIB if (d != NULL && d->gz != NULL) { int err; char const * const errmsg = gzerror(d->gz, &err); if (err != Z_ERRNO) - return _error->Error("gzread: %s (%d: %s)", _("Read error"), err, errmsg); + return FileFdError("gzread: %s (%d: %s)", _("Read error"), err, errmsg); } #endif #ifdef HAVE_BZ2 @@ -1260,10 +1269,10 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual) int err; char const * const errmsg = BZ2_bzerror(d->bz2, &err); if (err != BZ_IO_ERROR) - return _error->Error("BZ2_bzread: %s (%d: %s)", _("Read error"), err, errmsg); + return FileFdError("BZ2_bzread: %s (%d: %s)", _("Read error"), err, errmsg); } #endif - return _error->Errno("read",_("Read error")); + return FileFdErrno("read",_("Read error")); } To = (char *)To + Res; @@ -1284,9 +1293,8 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual) Flags |= HitEof; return true; } - - Flags |= Fail; - return _error->Error(_("read, still have %llu to read but none left"), Size); + + return FileFdError(_("read, still have %llu to read but none left"), Size); } /*}}}*/ // FileFd::ReadLine - Read a complete line from the file /*{{{*/ @@ -1342,14 +1350,13 @@ bool FileFd::Write(const void *From,unsigned long long Size) continue; if (Res < 0) { - Flags |= Fail; #ifdef HAVE_ZLIB if (d != NULL && d->gz != NULL) { int err; char const * const errmsg = gzerror(d->gz, &err); if (err != Z_ERRNO) - return _error->Error("gzwrite: %s (%d: %s)", _("Write error"), err, errmsg); + return FileFdError("gzwrite: %s (%d: %s)", _("Write error"), err, errmsg); } #endif #ifdef HAVE_BZ2 @@ -1358,10 +1365,10 @@ bool FileFd::Write(const void *From,unsigned long long Size) int err; char const * const errmsg = BZ2_bzerror(d->bz2, &err); if (err != BZ_IO_ERROR) - return _error->Error("BZ2_bzwrite: %s (%d: %s)", _("Write error"), err, errmsg); + return FileFdError("BZ2_bzwrite: %s (%d: %s)", _("Write error"), err, errmsg); } #endif - return _error->Errno("write",_("Write error")); + return FileFdErrno("write",_("Write error")); } From = (char *)From + Res; @@ -1373,9 +1380,8 @@ bool FileFd::Write(const void *From,unsigned long long Size) if (Size == 0) return true; - - Flags |= Fail; - return _error->Error(_("write, still have %llu to write but couldn't"), Size); + + return FileFdError(_("write, still have %llu to write but couldn't"), Size); } bool FileFd::Write(int Fd, const void *From, unsigned long long Size) { @@ -1419,10 +1425,7 @@ bool FileFd::Seek(unsigned long long To) return Skip(To - seekpos); if ((d->openmode & ReadOnly) != ReadOnly) - { - Flags |= Fail; - return _error->Error("Reopen is only implemented for read-only files!"); - } + return FileFdError("Reopen is only implemented for read-only files!"); #ifdef HAVE_BZ2 if (d->bz2 != NULL) { @@ -1443,17 +1446,11 @@ bool FileFd::Seek(unsigned long long To) if (lseek(d->compressed_fd, 0, SEEK_SET) != 0) iFd = d->compressed_fd; if (iFd < 0) - { - Flags |= Fail; - return _error->Error("Reopen is not implemented for pipes opened with FileFd::OpenDescriptor()!"); - } + return FileFdError("Reopen is not implemented for pipes opened with FileFd::OpenDescriptor()!"); } if (OpenInternDescriptor(d->openmode, d->compressor) == false) - { - Flags |= Fail; - return _error->Error("Seek on file %s because it couldn't be reopened", FileName.c_str()); - } + return FileFdError("Seek on file %s because it couldn't be reopened", FileName.c_str()); if (To != 0) return Skip(To); @@ -1469,10 +1466,7 @@ bool FileFd::Seek(unsigned long long To) #endif res = lseek(iFd,To,SEEK_SET); if (res != (signed)To) - { - Flags |= Fail; - return _error->Error("Unable to seek to %llu", To); - } + return FileFdError("Unable to seek to %llu", To); if (d != NULL) d->seekpos = To; @@ -1496,10 +1490,7 @@ bool FileFd::Skip(unsigned long long Over) { unsigned long long toread = std::min((unsigned long long) sizeof(buffer), Over); if (Read(buffer, toread) == false) - { - Flags |= Fail; - return _error->Error("Unable to seek ahead %llu",Over); - } + return FileFdError("Unable to seek ahead %llu",Over); Over -= toread; } return true; @@ -1513,10 +1504,7 @@ bool FileFd::Skip(unsigned long long Over) #endif res = lseek(iFd,Over,SEEK_CUR); if (res < 0) - { - Flags |= Fail; - return _error->Error("Unable to seek ahead %llu",Over); - } + return FileFdError("Unable to seek ahead %llu",Over); if (d != NULL) d->seekpos = res; @@ -1530,17 +1518,11 @@ bool FileFd::Truncate(unsigned long long To) { #if defined HAVE_ZLIB || defined HAVE_BZ2 if (d != NULL && (d->gz != NULL || d->bz2 != NULL)) - { - Flags |= Fail; - return _error->Error("Truncating compressed files is not implemented (%s)", FileName.c_str()); - } + return FileFdError("Truncating compressed files is not implemented (%s)", FileName.c_str()); #endif if (ftruncate(iFd,To) != 0) - { - Flags |= Fail; - return _error->Error("Unable to truncate to %llu",To); - } - + return FileFdError("Unable to truncate to %llu",To); + return true; } /*}}}*/ @@ -1568,10 +1550,7 @@ unsigned long long FileFd::Tell() #endif Res = lseek(iFd,0,SEEK_CUR); if (Res == (off_t)-1) - { - Flags |= Fail; - _error->Errno("lseek","Failed to determine the current file position"); - } + FileFdErrno("lseek","Failed to determine the current file position"); if (d != NULL) d->seekpos = Res; return Res; @@ -1584,10 +1563,7 @@ unsigned long long FileFd::FileSize() { struct stat Buf; if ((d == NULL || d->pipe == false) && fstat(iFd,&Buf) != 0) - { - Flags |= Fail; - return _error->Errno("fstat","Unable to determine the file size"); - } + return FileFdErrno("fstat","Unable to determine the file size"); // for compressor pipes st_size is undefined and at 'best' zero if ((d != NULL && d->pipe == true) || S_ISFIFO(Buf.st_mode)) @@ -1597,10 +1573,7 @@ unsigned long long FileFd::FileSize() if (d != NULL) d->pipe = true; if (stat(FileName.c_str(), &Buf) != 0) - { - Flags |= Fail; - return _error->Errno("stat","Unable to determine the file size"); - } + return FileFdErrno("stat","Unable to determine the file size"); } return Buf.st_size; @@ -1642,16 +1615,10 @@ unsigned long long FileFd::Size() * bits of the file */ // FIXME: Size for gz-files is limited by 32bit… no largefile support if (lseek(iFd, -4, SEEK_END) < 0) - { - Flags |= Fail; - return _error->Errno("lseek","Unable to seek to end of gzipped file"); - } + return FileFdErrno("lseek","Unable to seek to end of gzipped file"); size = 0L; if (read(iFd, &size, 4) != 4) - { - Flags |= Fail; - return _error->Errno("read","Unable to read original size of gzipped file"); - } + return FileFdErrno("read","Unable to read original size of gzipped file"); #ifdef WORDS_BIGENDIAN uint32_t tmp_size = size; @@ -1661,10 +1628,7 @@ unsigned long long FileFd::Size() #endif if (lseek(iFd, oldPos, SEEK_SET) < 0) - { - Flags |= Fail; - return _error->Errno("lseek","Unable to seek in gzipped file"); - } + return FileFdErrno("lseek","Unable to seek in gzipped file"); return size; } @@ -1681,8 +1645,7 @@ time_t FileFd::ModificationTime() struct stat Buf; if ((d == NULL || d->pipe == false) && fstat(iFd,&Buf) != 0) { - Flags |= Fail; - _error->Errno("fstat","Unable to determine the modification time of file %s", FileName.c_str()); + FileFdErrno("fstat","Unable to determine the modification time of file %s", FileName.c_str()); return 0; } @@ -1695,8 +1658,7 @@ time_t FileFd::ModificationTime() d->pipe = true; if (stat(FileName.c_str(), &Buf) != 0) { - Flags |= Fail; - _error->Errno("fstat","Unable to determine the modification time of file %s", FileName.c_str()); + FileFdErrno("fstat","Unable to determine the modification time of file %s", FileName.c_str()); return 0; } } @@ -1752,11 +1714,40 @@ bool FileFd::Close() bool FileFd::Sync() { if (fsync(iFd) != 0) + return FileFdErrno("sync",_("Problem syncing the file")); + return true; +} + /*}}}*/ +// FileFd::FileFdErrno - set Fail and call _error->Errno *{{{*/ +bool FileFd::FileFdErrno(const char *Function, const char *Description,...) +{ + Flags |= Fail; + va_list args; + size_t msgSize = 400; + int const errsv = errno; + while (true) { - Flags |= Fail; - return _error->Errno("sync",_("Problem syncing the file")); + va_start(args,Description); + if (_error->InsertErrno(GlobalError::ERROR, Function, Description, args, errsv, msgSize) == false) + break; + va_end(args); } - return true; + return false; +} + /*}}}*/ +// FileFd::FileFdError - set Fail and call _error->Error *{{{*/ +bool FileFd::FileFdError(const char *Description,...) { + Flags |= Fail; + va_list args; + size_t msgSize = 400; + while (true) + { + va_start(args,Description); + if (_error->Insert(GlobalError::ERROR, Description, args, msgSize) == false) + break; + va_end(args); + } + return false; } /*}}}*/ diff --git a/apt-pkg/contrib/fileutl.h b/apt-pkg/contrib/fileutl.h index 426664d3a..3ec01dd9a 100644 --- a/apt-pkg/contrib/fileutl.h +++ b/apt-pkg/contrib/fileutl.h @@ -149,6 +149,10 @@ class FileFd private: FileFdPrivate* d; bool OpenInternDescriptor(unsigned int const Mode, APT::Configuration::Compressor const &compressor); + + // private helpers to set Fail flag and call _error->Error + bool FileFdErrno(const char* Function, const char* Description,...) __like_printf(3) __cold; + bool FileFdError(const char* Description,...) __like_printf(2) __cold; }; bool RunScripts(const char *Cnf); diff --git a/apt-pkg/contrib/gpgv.cc b/apt-pkg/contrib/gpgv.cc index 31db7d5fe..f47e7ea48 100644 --- a/apt-pkg/contrib/gpgv.cc +++ b/apt-pkg/contrib/gpgv.cc @@ -154,7 +154,7 @@ void ExecGPGV(std::string const &File, std::string const &FileGPG, if (sigFd != -1) unlink(data); ioprintf(std::cerr, "Splitting up %s into data and signature failed", File.c_str()); - exit(EINTERNAL); + exit(112); } Args.push_back(sig); Args.push_back(data); diff --git a/apt-pkg/contrib/gpgv.h b/apt-pkg/contrib/gpgv.h index 08b10a97a..45f069058 100644 --- a/apt-pkg/contrib/gpgv.h +++ b/apt-pkg/contrib/gpgv.h @@ -23,9 +23,18 @@ /** \brief generates and run the command to verify a file with gpgv * * If File and FileSig specify the same file it is assumed that we - * deal with a clear-signed message. In that case the file will be - * rewritten to be in a good-known format without uneeded whitespaces - * and additional messages (unsigned or signed). + * deal with a clear-signed message. Note that the method will accept + * and validate files which include additional (unsigned) messages + * without complaining. Do NOT open files accepted by this method + * for reading. Use #OpenMaybeClearSignedFile to access the message + * instead to ensure you are only reading signed data. + * + * The method does not return, but has some noteable exit-codes: + * 111 signals an internal error like the inability to execute gpgv, + * 112 indicates a clear-signed file which doesn't include a message, + * which can happen if APT is run while on a network requiring + * authentication before usage (e.g. in hotels) + * All other exit-codes are passed-through from gpgv. * * @param File is the message (unsigned or clear-signed) * @param FileSig is the signature (detached or clear-signed) diff --git a/apt-pkg/contrib/sha2_internal.cc b/apt-pkg/contrib/sha2_internal.cc index 83b5a98d3..f84fb761c 100644 --- a/apt-pkg/contrib/sha2_internal.cc +++ b/apt-pkg/contrib/sha2_internal.cc @@ -632,7 +632,7 @@ void SHA256_Final(sha2_byte digest[], SHA256_CTX* context) { } /* Clean up state data: */ - MEMSET_BZERO(context, sizeof(context)); + MEMSET_BZERO(context, sizeof(*context)); usedspace = 0; } @@ -653,7 +653,7 @@ char *SHA256_End(SHA256_CTX* context, char buffer[]) { } *buffer = (char)0; } else { - MEMSET_BZERO(context, sizeof(context)); + MEMSET_BZERO(context, sizeof(*context)); } MEMSET_BZERO(digest, SHA256_DIGEST_LENGTH); return buffer; @@ -969,7 +969,7 @@ void SHA512_Final(sha2_byte digest[], SHA512_CTX* context) { } /* Zero out state data */ - MEMSET_BZERO(context, sizeof(context)); + MEMSET_BZERO(context, sizeof(*context)); } char *SHA512_End(SHA512_CTX* context, char buffer[]) { @@ -989,7 +989,7 @@ char *SHA512_End(SHA512_CTX* context, char buffer[]) { } *buffer = (char)0; } else { - MEMSET_BZERO(context, sizeof(context)); + MEMSET_BZERO(context, sizeof(*context)); } MEMSET_BZERO(digest, SHA512_DIGEST_LENGTH); return buffer; @@ -1044,7 +1044,7 @@ void SHA384_Final(sha2_byte digest[], SHA384_CTX* context) { } /* Zero out state data */ - MEMSET_BZERO(context, sizeof(context)); + MEMSET_BZERO(context, sizeof(*context)); } char *SHA384_End(SHA384_CTX* context, char buffer[]) { @@ -1064,7 +1064,7 @@ char *SHA384_End(SHA384_CTX* context, char buffer[]) { } *buffer = (char)0; } else { - MEMSET_BZERO(context, sizeof(context)); + MEMSET_BZERO(context, sizeof(*context)); } MEMSET_BZERO(digest, SHA384_DIGEST_LENGTH); return buffer; diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc index f4dd3407d..d0e74d8c5 100644 --- a/apt-pkg/contrib/strutl.cc +++ b/apt-pkg/contrib/strutl.cc @@ -758,7 +758,8 @@ bool ReadMessages(int Fd, vector<string> &List) // Look for the end of the message for (char *I = Buffer; I + 1 < End; I++) { - if (I[0] != '\n' || I[1] != '\n') + if (I[1] != '\n' || + (I[0] != '\n' && strncmp(I, "\r\n\r\n", 4) != 0)) continue; // Pull the message out @@ -766,7 +767,7 @@ bool ReadMessages(int Fd, vector<string> &List) PartialMessage += Message; // Fix up the buffer - for (; I < End && *I == '\n'; I++); + for (; I < End && (*I == '\n' || *I == '\r'); ++I); End -= I-Buffer; memmove(Buffer,I,End-Buffer); I = Buffer; |