/////////////////////////////////////////////////////////////////////////////
-// Name: zipstrm.cpp
+// Name: src/common/zipstrm.cpp
// Purpose: Streams for Zip files
// Author: Mike Wetherell
// RCS-ID: $Id$
#include "wx/wxprec.h"
#ifdef __BORLANDC__
- #pragma hdrstop
+ #pragma hdrstop
#endif
+#if wxUSE_ZLIB && wxUSE_STREAMS && wxUSE_ZIPSTREAM
+
#ifndef WX_PRECOMP
- #include "wx/defs.h"
+ #include "wx/intl.h"
+ #include "wx/log.h"
+ #include "wx/utils.h"
#endif
-#if wxUSE_ZLIB && wxUSE_STREAMS && wxUSE_ZIPSTREAM
-
#include "wx/zipstrm.h"
-#include "wx/log.h"
-#include "wx/intl.h"
#include "wx/datstrm.h"
#include "wx/zstream.h"
#include "wx/mstream.h"
-#include "wx/utils.h"
#include "wx/buffer.h"
#include "wx/ptr_scpd.h"
#include "wx/wfstream.h"
return (n[3] << 24) | (n[2] << 16) | (n[1] << 8) | n[0];
}
+// Decode a little endian wxUint16 number from a character array
+//
+static inline wxUint16 CrackUint16(const char *m)
+{
+ const unsigned char *n = (const unsigned char*)m;
+ return (n[1] << 8) | n[0];
+}
+
// Temporarily lower the logging level in debug mode to avoid a warning
// from SeekI about seeking on a stream with data written back to it.
//
static wxFileOffset QuietSeek(wxInputStream& stream, wxFileOffset pos)
{
-#ifdef __WXDEBUG__
+#if defined(__WXDEBUG__) && wxUSE_LOG
wxLogLevel level = wxLog::GetLogLevel();
wxLog::SetLogLevel(wxLOG_Debug - 1);
wxFileOffset result = stream.SeekI(pos);
wxUint8 wxZipHeader::Read8()
{
wxASSERT(m_pos < m_size);
- return *wx_reinterpret_cast(wxUint8*, m_data + m_pos++);
+ return m_data[m_pos++];
}
wxUint16 wxZipHeader::Read16()
{
wxASSERT(m_pos + 2 <= m_size);
- wxUint16 n = *wx_reinterpret_cast(wxUint16*, m_data + m_pos);
+ wxUint16 n = CrackUint16(m_data + m_pos);
m_pos += 2;
- return wxUINT16_SWAP_ON_BE(n);
+ return n;
}
wxUint32 wxZipHeader::Read32()
{
wxASSERT(m_pos + 4 <= m_size);
- wxUint32 n = *wx_reinterpret_cast(wxUint32*, m_data + m_pos);
+ wxUint32 n = CrackUint32(m_data + m_pos);
m_pos += 4;
- return wxUINT32_SWAP_ON_BE(n);
+ return n;
}
if (m_Crc == SUMS_MAGIC)
{
wxZipHeader buf(stream, 8);
- wxUint32 u1 = buf.GetSize() >= 4 ? buf.Read32() : LOCAL_MAGIC;
+ wxUint32 u1 = buf.GetSize() >= 4 ? buf.Read32() : (wxUint32)LOCAL_MAGIC;
wxUint32 u2 = buf.GetSize() == 8 ? buf.Read32() : 0;
// look for the signature of the following record to decide which
else {
wxLogNull nolog;
wxFileOffset pos = m_parent_i_stream->TellI();
- // FIXME
- //if (pos != wxInvalidOffset)
- if (pos >= 0 && pos <= LONG_MAX)
+ if (pos != wxInvalidOffset)
m_offsetAdjustment = m_position = pos;
return true;
}