1 files changed, 151 insertions, 0 deletions
diff --git a/src/inkjar/jar.h b/src/inkjar/jar.h
new file mode 100644
index 000000000..2340a74c7
--- /dev/null
+++ b/src/inkjar/jar.h
@@ -0,0 +1,151 @@
+#ifndef __INKJAR_JAR_H_
+#define __INKJAR_JAR_H_
+/*
+ * Copyright (C) 1999  Bryan Burns
+ * Copyright (C) 2004 Johan Ceuppens
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include <glib/garray.h>
+#include <glib/gtypes.h>
+#include <zlib.h>
+#include <inttypes.h>
+
+namespace Inkjar {
+
+unsigned const RDSZ  = 4096;
+
+//#define DEBUG 1 //uncommment for debug messages
+
+enum JarFileReaderState {CLOSED, OPEN};
+
+//fixme: The following will be removed
+typedef uint8_t ub1;
+typedef uint16_t ub2;
+typedef uint32_t ub4;
+
+#define LOC_EXTRA   6  /* extra bytes */
+#define LOC_COMP    8  /* compression method */
+#define LOC_MODTIME 10 /* last modification time */
+#define LOC_MODDATE 12 /* last modification date */
+#define LOC_CRC     14 /* CRC */
+#define LOC_CSIZE   18 /* compressed size */
+#define LOC_USIZE   22 /* uncompressed size */
+#define LOC_FNLEN   26 /* filename length */
+#define LOC_EFLEN   28 /* extra-field length */
+
+#define CEN_COMP    10 /* compression method */
+#define CEN_MODTIME 12
+#define CEN_MODDATE 14
+#define CEN_CRC     16
+#define CEN_CSIZE   20
+#define CEN_USIZE   24
+#define CEN_FNLEN   28
+#define CEN_EFLEN   30
+#define CEN_COMLEN  32
+#define CEN_OFFSET  42
+
+
+/* macros */
+#define PACK_UB4(d, o, v) d[o] = (ub1)((v) & 0x000000ff); \
+                          d[o + 1] = (ub1)(((v) & 0x0000ff00) >> 8); \
+                          d[o + 2] = (ub1)(((v) & 0x00ff0000) >> 16); \
+                          d[o + 3] = (ub1)(((v) & 0xff000000) >> 24)
+
+#define PACK_UB2(d, o, v) d[o] = (ub1)((v) & 0x00ff); \
+                          d[o + 1] = (ub1)(((v) & 0xff00) >> 8)
+
+#define UNPACK_UB4(s, o) (ub4)s[o] + (((ub4)s[o + 1]) << 8) +\
+                         (((ub4)s[o + 2]) << 16) + (((ub4)s[o + 3]) << 24)
+
+#define UNPACK_UB2(s, o)  (ub2)s[o] + (((ub2)s[o + 1]) << 8)
+
+
+
+/*
+ * JarFile:
+ * 
+ * This is a wrapper class for canonical jarfile functions like reading, 
+ * writing, seeking etc. JarFile is a dumb class with no state information.
+ *
+ * All memory allocations are done with g_malloc.
+ */
+
+class JarFile {
+public:
+
+    JarFile() : fd(-1), _filename(NULL), _last_filename(NULL) {}
+    virtual ~JarFile();
+    JarFile(gchar const *new_filename);
+    
+    GByteArray *get_next_file_contents();
+    gchar *get_last_filename() const;
+    bool open();
+    bool close();
+    int read(guint8 *buf, int count);
+
+    JarFile(JarFile const &rhs);
+    JarFile &operator=(JarFile const &rhs);
+
+private:
+
+    int fd;
+    gchar *_filename;
+    z_stream _zs;
+    gchar *_last_filename;
+
+    bool init_inflation();
+    bool read_signature();
+    guint32 get_crc(guint8 *bytes, guint16 flags);
+    guint8 *read_filename(guint16 filename_length);
+    bool check_compression_method(guint16 method, guint16 flags);
+    bool check_crc(guint32 oldcrc, guint32 crc, guint16 flags);
+    guint8 *get_compressed_file(guint32 compressed_size,
+				unsigned int &file_length,
+				guint32 oldcrc, guint16 flags);
+    guint8 *get_uncompressed_file(guint32 compressed_szie, guint32 crc, 
+				  guint16 eflen, guint16 flags);
+}; // class JarFile
+
+
+/*
+ * JarFileReader:
+ *
+ * This provides some smarter functions for operating on a jarfile object
+ * It should be able to grep for files or return the contents of a specific 
+ * file.
+ */
+
+class JarFileReader {
+public:
+    
+    JarFileReader(gchar const *new_filename) 
+	: _state(CLOSED), _jarfile(new_filename) {}
+    JarFileReader() : _state(CLOSED) {}
+    virtual ~JarFileReader() { if (_state == OPEN) _jarfile.close(); }
+    //fixme return types are incorrect
+    GByteArray *get_next_file();//fixme clean up return type
+    void set_filename(gchar const *new_filename);
+    void set_jarfile(JarFile const &new_jarfile);
+    gchar *get_last_filename() const { return _jarfile.get_last_filename(); };
+    JarFileReader(JarFileReader const &rhs);
+    JarFileReader &operator=(JarFileReader const &rhs);
+private:
+    JarFileReaderState _state;    
+    JarFile _jarfile;
+
+}; // class JarFileReader
+
+} // namespace Inkjar
+#endif // header guard
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :