#define PKGLIB_FILEUTL_H
#include <apt-pkg/macros.h>
+#include <apt-pkg/aptconfiguration.h>
#include <string>
#include <vector>
+#include <set>
+#include <time.h>
#include <zlib.h>
+#ifndef APT_8_CLEANER_HEADERS
+using std::string;
+#endif
+
/* Define this for python-apt */
#define APT_HAS_GZIP 1
-using std::string;
-
+class FileFdPrivate;
class FileFd
{
protected:
int iFd;
enum LocalFlags {AutoClose = (1<<0),Fail = (1<<1),DelOnFail = (1<<2),
- HitEof = (1<<3), Replace = (1<<4) };
+ HitEof = (1<<3), Replace = (1<<4), Compressed = (1<<5) };
unsigned long Flags;
- string FileName;
- string TemporaryFileName;
- gzFile gz;
+ std::string FileName;
+ std::string TemporaryFileName;
public:
- enum OpenMode {ReadOnly,WriteEmpty,WriteExists,WriteAny,WriteTemp,ReadOnlyGzip,
- WriteAtomic};
+ enum OpenMode {
+ ReadOnly = (1 << 0),
+ WriteOnly = (1 << 1),
+ ReadWrite = ReadOnly | WriteOnly,
+
+ Create = (1 << 2),
+ Exclusive = (1 << 3),
+ Atomic = Exclusive | (1 << 4),
+ Empty = (1 << 5),
+
+ WriteEmpty = ReadWrite | Create | Empty,
+ WriteExists = ReadWrite,
+ WriteAny = ReadWrite | Create,
+ WriteTemp = ReadWrite | Create | Exclusive,
+ ReadOnlyGzip,
+ WriteAtomic = ReadWrite | Create | Atomic
+ };
+ enum CompressMode { Auto = 'A', None = 'N', Extension = 'E', Gzip = 'G', Bzip2 = 'B', Lzma = 'L', Xz = 'X' };
- inline bool Read(void *To,unsigned long Size,bool AllowEof)
+ inline bool Read(void *To,unsigned long long Size,bool AllowEof)
{
- unsigned long Jnk;
+ unsigned long long Jnk;
if (AllowEof)
return Read(To,Size,&Jnk);
return Read(To,Size);
}
- bool Read(void *To,unsigned long Size,unsigned long *Actual = 0);
- bool Write(const void *From,unsigned long Size);
- bool Seek(unsigned long To);
- bool Skip(unsigned long To);
- bool Truncate(unsigned long To);
- unsigned long Tell();
- unsigned long Size();
- unsigned long FileSize();
- bool Open(string FileName,OpenMode Mode,unsigned long Perms = 0666);
- bool OpenDescriptor(int Fd, OpenMode Mode, bool AutoClose=false);
+ bool Read(void *To,unsigned long long Size,unsigned long long *Actual = 0);
+ char* ReadLine(char *To, unsigned long long const Size);
+ bool Write(const void *From,unsigned long long Size);
+ bool static Write(int Fd, const void *From, unsigned long long Size);
+ bool Seek(unsigned long long To);
+ bool Skip(unsigned long long To);
+ bool Truncate(unsigned long long To);
+ unsigned long long Tell();
+ unsigned long long Size();
+ unsigned long long FileSize();
+ time_t ModificationTime();
+
+ /* You want to use 'unsigned long long' if you are talking about a file
+ to be able to support large files (>2 or >4 GB) properly.
+ This shouldn't happen all to often for the indexes, but deb's might be…
+ And as the auto-conversation converts a 'unsigned long *' to a 'bool'
+ instead of 'unsigned long long *' we need to provide this explicitely -
+ otherwise applications magically start to fail… */
+ bool Read(void *To,unsigned long long Size,unsigned long *Actual) APT_DEPRECATED
+ {
+ unsigned long long R;
+ bool const T = Read(To, Size, &R);
+ *Actual = R;
+ return T;
+ }
+
+ bool Open(std::string FileName,unsigned int const Mode,CompressMode Compress,unsigned long const AccessMode = 0666);
+ bool Open(std::string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor,unsigned long const AccessMode = 0666);
+ inline bool Open(std::string const &FileName,unsigned int const Mode, unsigned long const AccessMode = 0666) {
+ return Open(FileName, Mode, None, AccessMode);
+ };
+ bool OpenDescriptor(int Fd, unsigned int const Mode, CompressMode Compress, bool AutoClose=false);
+ bool OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration::Compressor const &compressor, bool AutoClose=false);
+ inline bool OpenDescriptor(int Fd, unsigned int const Mode, bool AutoClose=false) {
+ return OpenDescriptor(Fd, Mode, None, AutoClose);
+ };
bool Close();
bool Sync();
// Simple manipulators
inline int Fd() {return iFd;};
- inline void Fd(int fd) {iFd = fd;};
+ inline void Fd(int fd) { OpenDescriptor(fd, ReadWrite);};
+ gzFile gzFd() APT_DEPRECATED APT_PURE;
+
inline bool IsOpen() {return iFd >= 0;};
inline bool Failed() {return (Flags & Fail) == Fail;};
inline void EraseOnFailure() {Flags |= DelOnFail;};
inline void OpFail() {Flags |= Fail;};
inline bool Eof() {return (Flags & HitEof) == HitEof;};
- inline string &Name() {return FileName;};
+ inline bool IsCompressed() {return (Flags & Compressed) == Compressed;};
+ inline std::string &Name() {return FileName;};
- FileFd(string FileName,OpenMode Mode,unsigned long Perms = 0666) : iFd(-1),
- Flags(0), gz(NULL)
+ FileFd(std::string FileName,unsigned int const Mode,unsigned long AccessMode = 0666) : iFd(-1), Flags(0), d(NULL)
+ {
+ Open(FileName,Mode, None, AccessMode);
+ };
+ FileFd(std::string FileName,unsigned int const Mode, CompressMode Compress, unsigned long AccessMode = 0666) : iFd(-1), Flags(0), d(NULL)
{
- Open(FileName,Mode,Perms);
+ Open(FileName,Mode, Compress, AccessMode);
+ };
+ FileFd() : iFd(-1), Flags(AutoClose), d(NULL) {};
+ FileFd(int const Fd, unsigned int const Mode = ReadWrite, CompressMode Compress = None) : iFd(-1), Flags(0), d(NULL)
+ {
+ OpenDescriptor(Fd, Mode, Compress);
+ };
+ FileFd(int const Fd, bool const AutoClose) : iFd(-1), Flags(0), d(NULL)
+ {
+ OpenDescriptor(Fd, ReadWrite, None, AutoClose);
};
- FileFd(int Fd = -1) : iFd(Fd), Flags(AutoClose), gz(NULL) {};
- FileFd(int Fd,bool) : iFd(Fd), Flags(0), gz(NULL) {};
virtual ~FileFd();
+
+ private:
+ FileFdPrivate* d;
+ APT_HIDDEN bool OpenInternDescriptor(unsigned int const Mode, APT::Configuration::Compressor const &compressor);
+
+ // private helpers to set Fail flag and call _error->Error
+ APT_HIDDEN bool FileFdErrno(const char* Function, const char* Description,...) APT_PRINTF(3) APT_COLD;
+ APT_HIDDEN bool FileFdError(const char* Description,...) APT_PRINTF(2) APT_COLD;
};
bool RunScripts(const char *Cnf);
bool CopyFile(FileFd &From,FileFd &To);
-int GetLock(string File,bool Errors = true);
-bool FileExists(string File);
-bool DirectoryExists(string const &Path) __attrib_const;
-bool CreateDirectory(string const &Parent, string const &Path);
+int GetLock(std::string File,bool Errors = true);
+bool FileExists(std::string File);
+bool RealFileExists(std::string File);
+bool DirectoryExists(std::string const &Path) APT_CONST;
+bool CreateDirectory(std::string const &Parent, std::string const &Path);
+time_t GetModificationTime(std::string const &Path);
+bool Rename(std::string From, std::string To);
+
+std::string GetTempDir();
+FileFd* GetTempFile(std::string const &Prefix = "",
+ bool ImmediateUnlink = true);
/** \brief Ensure the existence of the given Path
*
* /apt/ will be removed before CreateDirectory call.
* \param Path which should exist after (successful) call
*/
-bool CreateAPTDirectoryIfNeeded(string const &Parent, string const &Path);
+bool CreateAPTDirectoryIfNeeded(std::string const &Parent, std::string const &Path);
-std::vector<string> GetListOfFilesInDir(string const &Dir, string const &Ext,
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, std::string const &Ext,
bool const &SortList, bool const &AllowNoExt=false);
-std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> const &Ext,
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, std::vector<std::string> const &Ext,
bool const &SortList);
-string SafeGetCWD();
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, bool SortList);
+std::string SafeGetCWD();
void SetCloseExec(int Fd,bool Close);
void SetNonBlock(int Fd,bool Block);
bool WaitFd(int Fd,bool write = false,unsigned long timeout = 0);
pid_t ExecFork();
+pid_t ExecFork(std::set<int> keep_fds);
+void MergeKeepFdsFromConfiguration(std::set<int> &keep_fds);
bool ExecWait(pid_t Pid,const char *Name,bool Reap = false);
+
+// check if the given file starts with a PGP cleartext signature
+bool StartsWithGPGClearTextSignature(std::string const &FileName);
+
+// process releated
+bool DropPrivs();
+
// File string manipulators
-string flNotDir(string File);
-string flNotFile(string File);
-string flNoLink(string File);
-string flExtension(string File);
-string flCombine(string Dir,string File);
+std::string flNotDir(std::string File);
+std::string flNotFile(std::string File);
+std::string flNoLink(std::string File);
+std::string flExtension(std::string File);
+std::string flCombine(std::string Dir,std::string File);
+
+/** \brief Takes a file path and returns the absolute path
+ */
+std::string flAbsPath(std::string File);
+
+// simple c++ glob
+std::vector<std::string> Glob(std::string const &pattern, int flags=0);
+
+/** \brief Popen() implementation that execv() instead of using a shell
+ *
+ * \param Args the execv style command to run
+ * \param FileFd is a referenz to the FileFd to use for input or output
+ * \param Child a reference to the integer that stores the child pid
+ * Note that you must call ExecWait() or similar to cleanup
+ * \param Mode is either FileFd::ReadOnly or FileFd::WriteOnly
+ * \return true on success, false on failure with _error set
+ */
+bool Popen(const char* Args[], FileFd &Fd, pid_t &Child, FileFd::OpenMode Mode);
+
#endif
projects / apt.git / blobdiff