From 14c7f45cdae826f88dc539c8c38dd95caf305731 Mon Sep 17 00:00:00 2001
From: Maurus Cuelenaere <mcuelenaere@gmail.com>
Date: Fri, 11 Jul 2008 15:50:46 +0000
Subject: Add zook's ZenUtils to SVN

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18010 a1c6a512-1295-4272-9138-f99709370657
---
 utils/zenutils/source/shared/pe.h | 142 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100755 utils/zenutils/source/shared/pe.h

(limited to 'utils/zenutils/source/shared/pe.h')

diff --git a/utils/zenutils/source/shared/pe.h b/utils/zenutils/source/shared/pe.h
new file mode 100755
index 0000000000..92a272d3c7
--- /dev/null
+++ b/utils/zenutils/source/shared/pe.h
@@ -0,0 +1,142 @@
+/* zenutils - Utilities for working with creative firmwares.
+ * Copyright 2007 (c) Rasmus Ry <rasmus.ry{at}gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef SHARED_PE_H_INCLUDED
+#define SHARED_PE_H_INCLUDED
+
+#include <string>
+#include <pelib/PeLib.h>
+#include <utils.h>
+
+namespace shared {
+    struct section_info
+    {
+        word index;
+        dword virtual_address;
+        dword virtual_size;
+        dword raw_address;
+        dword raw_size;
+        dword characteristics;
+    }; //struct section_info
+
+    class pe_file
+    {
+    public:
+        pe_file(PeLib::PeFile* pef = NULL);
+        ~pe_file();
+
+        bool is_valid() const;
+        bool read(const std::string& filename);
+        bool find_section(const std::string& name, section_info& info) const;
+        bool add_section(const std::string& name, const bytes& buffer, section_info& info);
+        dword get_image_base() const;
+        dword pa_to_va(PeLib::dword pa) const;
+
+    protected:
+        template <int _Bits>
+        static bool find_section(const PeLib::PeFileT<_Bits>* pef,
+                          const std::string& name, section_info& info);
+        template <int _Bits>
+        static bool add_section(PeLib::PeFileT<_Bits>* pef,
+                          const std::string& name, const bytes& buffer,
+                          section_info& info);
+
+    private:
+        PeLib::PeFile* _pef;
+    }; //class pe_file
+
+
+    template <int _Bits>
+    bool pe_file::find_section(const PeLib::PeFileT<_Bits>* pef,
+                      const std::string& name, section_info& info)
+    {
+        for (PeLib::word i = 0; i < pef->peHeader().getNumberOfSections(); i++)
+        {
+            if (pef->peHeader().getSectionName(i) == name)
+            {
+                info.index = i;
+                info.virtual_address = pef->peHeader().getVirtualAddress(i);
+                info.virtual_size = pef->peHeader().getVirtualSize(i);
+                info.raw_address = pef->peHeader().getPointerToRawData(i);
+                info.raw_size = pef->peHeader().getSizeOfRawData(i);
+                info.characteristics = pef->peHeader().getCharacteristics(i);
+                return true;
+            }
+        }
+        return false;
+    }
+
+    template <int _Bits>
+    bool pe_file::add_section(PeLib::PeFileT<_Bits>* pef,
+                      const std::string& name, const bytes& buffer,
+                      section_info& info)
+    {
+        using namespace PeLib;
+
+        // Check if the last section has the same name as the one being added.
+        PeLib::word secnum = pef->peHeader().getNumberOfSections();
+        if (pef->peHeader().getSectionName(secnum-1) == name)
+        {
+            // If it is, we change the attributes of the existing section.
+            secnum = secnum - 1;
+            pef->peHeader().setSizeOfRawData(secnum,
+                alignOffset(buffer.size(),
+                            pef->peHeader().getFileAlignment()));
+            pef->peHeader().setVirtualSize(secnum,
+                alignOffset(buffer.size(),
+                            pef->peHeader().getSectionAlignment()));
+            PeLib::dword chars = pef->peHeader().getCharacteristics(secnum-1);
+            pef->peHeader().setCharacteristics(secnum,
+                chars | PELIB_IMAGE_SCN_MEM_WRITE | PELIB_IMAGE_SCN_MEM_READ);
+        }
+        else
+        {
+            // Otherwise we add a new section.
+            if (pef->peHeader().addSection(name, buffer.size()) != NO_ERROR)
+            {
+                return false;
+            }
+            pef->peHeader().makeValid(pef->mzHeader().getAddressOfPeHeader());
+            pef->peHeader().write(pef->getFileName(), pef->mzHeader().getAddressOfPeHeader());
+        }
+
+        // Save the section headers to the file.
+        if (pef->peHeader().writeSections(pef->getFileName()) != NO_ERROR)
+        {
+            return false;
+        }
+
+        // Save the section data to the file.
+        if (pef->peHeader().writeSectionData(pef->getFileName(), secnum, buffer) != NO_ERROR)
+        {
+            return false;
+        }
+
+        // Fill out the section information.
+        info.index = secnum;
+        info.virtual_address = pef->peHeader().getVirtualAddress(secnum);
+        info.virtual_size = pef->peHeader().getVirtualSize(secnum);
+        info.raw_address = pef->peHeader().getPointerToRawData(secnum);
+        info.raw_size = pef->peHeader().getSizeOfRawData(secnum);
+        info.characteristics = pef->peHeader().getCharacteristics(secnum);
+
+        return true;
+    }
+}; //namespace shared
+
+#endif //SHARED_PE_H_INCLUDED
-- 
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