diff -r 000000000000 -r 6474c204b198 modules/libjar/zipwriter/src/nsZipHeader.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/modules/libjar/zipwriter/src/nsZipHeader.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,94 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef _nsZipHeader_h_
+#define _nsZipHeader_h_
+
+#include "nsString.h"
+#include "nsIOutputStream.h"
+#include "nsIInputStream.h"
+#include "nsIZipReader.h"
+#include "nsAutoPtr.h"
+#include "mozilla/Attributes.h"
+
+// High word is S_IFREG, low word is DOS file attribute
+#define ZIP_ATTRS_FILE 0x80000000
+// High word is S_IFDIR, low word is DOS dir attribute
+#define ZIP_ATTRS_DIRECTORY 0x40000010
+#define PERMISSIONS_FILE 0644
+#define PERMISSIONS_DIR 0755
+
+// Combine file type attributes with unix style permissions
+#define ZIP_ATTRS(p, a) ((p & 0xfff) << 16) | a
+
+class nsZipHeader MOZ_FINAL : public nsIZipEntry
+{
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIZIPENTRY
+
+    nsZipHeader() :
+        mCRC(0),
+        mCSize(0),
+        mUSize(0),
+        mEAttr(0),
+        mOffset(0),
+        mFieldLength(0),
+        mLocalFieldLength(0),
+        mVersionMade(0x0300 + 23), // Generated on Unix by v2.3 (matches infozip)
+        mVersionNeeded(20), // Requires v2.0 to extract
+        mFlags(0),
+        mMethod(0),
+        mTime(0),
+        mDate(0),
+        mDisk(0),
+        mIAttr(0),
+        mInited(false),
+        mWriteOnClose(false),
+        mExtraField(nullptr),
+        mLocalExtraField(nullptr)
+    {
+    }
+
+    ~nsZipHeader()
+    {
+        mExtraField = nullptr;
+        mLocalExtraField = nullptr;
+    }
+
+    uint32_t mCRC;
+    uint32_t mCSize;
+    uint32_t mUSize;
+    uint32_t mEAttr;
+    uint32_t mOffset;
+    uint32_t mFieldLength;
+    uint32_t mLocalFieldLength;
+    uint16_t mVersionMade;
+    uint16_t mVersionNeeded;
+    uint16_t mFlags;
+    uint16_t mMethod;
+    uint16_t mTime;
+    uint16_t mDate;
+    uint16_t mDisk;
+    uint16_t mIAttr;
+    bool mInited;
+    bool mWriteOnClose;
+    nsCString mName;
+    nsCString mComment;
+    nsAutoArrayPtr<uint8_t> mExtraField;
+    nsAutoArrayPtr<uint8_t> mLocalExtraField;
+
+    void Init(const nsACString & aPath, PRTime aDate, uint32_t aAttr,
+              uint32_t aOffset);
+    uint32_t GetFileHeaderLength();
+    nsresult WriteFileHeader(nsIOutputStream *aStream);
+    uint32_t GetCDSHeaderLength();
+    nsresult WriteCDSHeader(nsIOutputStream *aStream);
+    nsresult ReadCDSHeader(nsIInputStream *aStream);
+    const uint8_t * GetExtraField(uint16_t aTag, bool aLocal, uint16_t *aBlockSize);
+    nsresult PadExtraField(uint32_t aOffset, uint16_t aAlignSize);
+};
+
+#endif