1 /* datei.h
2  * This file belongs to Worker, a file manager for UN*X/X11.
3  * Copyright (C) 2001-2020 Ralf Hoffmann.
4  * You can contact me at: ralf@boomerangsworld.de
5  *   or http://www.boomerangsworld.de/worker
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
20  */
21 
22 #ifndef DATEI_H
23 #define DATEI_H
24 
25 #include "wdefines.h"
26 #include <string>
27 
28 class AWidth;
29 
30 class CopyfileProgressCallback
31 {
32 public:
33     virtual ~CopyfileProgressCallback() = 0;
34 
35     typedef enum {
36         COPYFILE_CONTINUE,
37         COPYFILE_ABORT
38     } callback_return_t;
39 
40     virtual callback_return_t progress_callback( loff_t current_bytes,
41                                                  loff_t total_bytes ) = 0;
42 };
43 
44 class Datei
45 {
46 public:
47   Datei();
48   ~Datei();
49   Datei( const Datei &other );
50   Datei &operator=( const Datei &other );
51 
52   int open( const char *name, const char *mode );
53   int close();
54   int putUChar(unsigned char value);
55   int putUShort(unsigned short int value);
56   int putInt(int);
57   int putULong(unsigned long value);
58   int putString( const char *str1 );
59   unsigned char getUChar();
60   int getCharAsInt();
61   unsigned short int getUShort();
62   int getInt();
63   unsigned long getULong();
64   char *getString(int count);
65   int getString(char *,int count);
66   void seek(long offset,int mode);
67   int overreadChunk();
68   long errors();
69   int putStringExt(const char *format,const char *str);
70   int putLine( const char *str );
71   char *getLine();
72   bool isEOF();
73 
74   static int getIntSize();
75   static int getUCharSize();
76   static int getUShortSize();
77   static int getULongSize();
78   static bool fileExists(const char*);
79   typedef enum {D_FE_NOFILE,D_FE_FILE,D_FE_DIR,D_FE_LINK} d_fe_t;
80   static d_fe_t fileExistsExt(const char*);
81   static d_fe_t lfileExistsExt(const char*);
82   static char *getFilenameFromPath(const char*);
83   static char *getNameWithoutExt(const char*);
84     static char *createTMPName( const char *infix = NULL,
85                                 const char *suffix = NULL );
86   static std::string createTMPHardlink( const std::string &name );
87   static char *shrinkFilename( const char *str, int maxlength, AWidth &lencalc );
88   static loff_t fileSize( const char * );
89   static char *getRelativePath( const char *source, const char *destdir, bool use_realpath );
90 
91     /**
92      * the same as getRelativePath, but it will test both source and
93      * realpath(source) and return the shorter relative path.
94      */
95     static char *getRelativePathExt( const char *source,
96                                      const char *destdir,
97                                      bool use_realpath );
98 
99     static int copyfile( const char *dest, const char *source,
100                          CopyfileProgressCallback *progress_callback = NULL );
101 
102   void configPutPair( const char *id, const char *info );
103   void configPutPairNum( const char *id, int num );
104   void configPutPairNum( const char *id, int num1, int num2 );
105   void configPutPairString( const char *id, const char *str, bool escape_newlines = false);
106   void configPutPairBool( const char *id, bool val );
107   void configPutInfo( const char *str, bool semicolon );
108   void configPutString( const char *str, bool semicolon, bool escape_newlines = false );
109   void configOpenSection( const char *sectioname );
110   void configCloseSection();
111 
112   ssize_t read( char *buffer, size_t len );
113 private:
114   int fd;
115   long error;
116   int putCharacter( int c );
117   int getCharacter();
118   bool iseof;
119 
120   int sectiondepth;
121 };
122 
123 int getOwnerStringLen(uid_t,gid_t);
124 char* getOwnerString(uid_t,gid_t);
125 
126 #endif
127 
128 /* Local Variables: */
129 /* mode:c++ */
130 /* End: */
131