From ad63666daeeda50acc7630132d61fe044634fddd Mon Sep 17 00:00:00 2001
From: Martin Kretzschmar <mkretzschmar@src.gnome.org>
Date: Sun, 16 May 2004 22:45:42 +0000
Subject: Imported Xpdf 2.03 and fixed build.

* ANNOUNCE:
* CHANGES:
* README:
* aconf2.h:
* configure.in:
* dj_make.bat:
* doc/pdffonts.1:
* doc/pdffonts.cat:
* doc/pdffonts.hlp:
* doc/pdfimages.1:
* doc/pdfimages.cat:
* doc/pdfimages.hlp:
* doc/pdfinfo.1:
* doc/pdfinfo.cat:
* doc/pdfinfo.hlp:
* doc/pdftopbm.1:
* doc/pdftopbm.cat:
* doc/pdftopbm.hlp:
* doc/pdftops.1:
* doc/pdftops.cat:
* doc/pdftops.hlp:
* doc/pdftotext.1:
* doc/pdftotext.cat:
* doc/pdftotext.hlp:
* doc/xpdf.1:
* doc/xpdf.cat:
* doc/xpdf.hlp:
* doc/xpdfrc.5:
* doc/xpdfrc.cat:
* doc/xpdfrc.hlp:
* goo/gfile.cc:
* ms_make.bat:
* vms_make.com:
* xpdf/Annot.cc:
* xpdf/Array.cc:
* xpdf/BuiltinFontTables.cc:
* xpdf/CMap.cc:
* xpdf/CMap.h:
* xpdf/Catalog.cc:
* xpdf/CharCodeToUnicode.cc:
* xpdf/CharCodeToUnicode.h:
* xpdf/Decrypt.cc:
* xpdf/Dict.cc:
* xpdf/ErrorCodes.h:
* xpdf/FTFont.cc:
* xpdf/FTFont.h:
* xpdf/FontFile.cc:
* xpdf/FontFile.h:
* xpdf/Function.cc:
* xpdf/Gfx.cc:
* xpdf/Gfx.h:
* xpdf/GfxFont.cc:
* xpdf/GfxFont.h:
* xpdf/GfxState.cc:
* xpdf/GfxState.h:
* xpdf/GlobalParams.cc:
* xpdf/GlobalParams.h:
* xpdf/JBIG2Stream.cc:
* xpdf/Link.cc:
* xpdf/Link.h:
* xpdf/Makefile.am:
* xpdf/OutputDev.h:
* xpdf/PDFDoc.cc:
* xpdf/PDFDoc.h:
* xpdf/PSOutputDev.cc:
* xpdf/PSOutputDev.h:
* xpdf/Page.cc:
* xpdf/Page.h:
* xpdf/Parser.cc:
* xpdf/Stream.cc:
* xpdf/Stream.h:
* xpdf/TTFont.cc:
* xpdf/TTFont.h:
* xpdf/TextOutputDev.cc:
* xpdf/TextOutputDev.h:
* xpdf/UnicodeMap.cc:
* xpdf/UnicodeMap.h:
* xpdf/UnicodeTypeTable.cc:
* xpdf/UnicodeTypeTable.h:
* xpdf/XOutputDev.cc:
* xpdf/XOutputDev.h:
* xpdf/XPDFApp.cc:
* xpdf/XPDFCore.cc:
* xpdf/XPDFCore.h:
* xpdf/XPDFViewer.cc:
* xpdf/XPDFViewer.h:
* xpdf/XRef.cc:
* xpdf/about-text.h:
* xpdf/config.h:
* xpdf/gpdf-control.cc:
* xpdf/gpdf-link-canvas-item.cc:
* xpdf/gpdf-links-canvas-layer.cc:
* xpdf/pdffonts.cc:
* xpdf/pdfimages.cc:
* xpdf/pdfinfo.cc:
* xpdf/pdftopbm.cc:
* xpdf/pdftops.cc:
* xpdf/pdftotext.cc:
* xpdf/tests/test-links.cc:
* xpdf/vms_make.com:
* xpdf/xpdf.cc: Imported Xpdf 2.03 and fixed build.
---
(limited to 'pdf/xpdf/Decrypt.cc')

diff --git a/pdf/xpdf/Decrypt.cc b/pdf/xpdf/Decrypt.cc
index dca3762..dab0750 100644
--- a/pdf/xpdf/Decrypt.cc
+++ b/pdf/xpdf/Decrypt.cc
@@ -74,6 +74,7 @@ GBool Decrypt::makeFileKey(int encVersion, int encRevision, int keyLength,
   int len, i, j;
 
   // try using the supplied owner password to generate the user password
+  *ownerPasswordOk = gFalse;
   if (ownerPassword) {
     len = ownerPassword->getLength();
     if (len < 32) {
@@ -82,43 +83,40 @@ GBool Decrypt::makeFileKey(int encVersion, int encRevision, int keyLength,
     } else {
       memcpy(test, ownerPassword->getCString(), 32);
     }
-  } else {
-    memcpy(test, passwordPad, 32);
-  }
-  md5(test, 32, test);
-  if (encRevision == 3) {
-    for (i = 0; i < 50; ++i) {
-      md5(test, 16, test);
-    }
-  }
-  if (encRevision == 2) {
-    rc4InitKey(test, keyLength, fState);
-    fx = fy = 0;
-    for (i = 0; i < 32; ++i) {
-      test2[i] = rc4DecryptByte(fState, &fx, &fy, ownerKey->getChar(i));
-    }
-  } else {
-    memcpy(test2, ownerKey->getCString(), 32);
-    for (i = 19; i >= 0; --i) {
-      for (j = 0; j < keyLength; ++j) {
-	tmpKey[j] = test[j] ^ i;
+    md5(test, 32, test);
+    if (encRevision == 3) {
+      for (i = 0; i < 50; ++i) {
+	md5(test, 16, test);
       }
-      rc4InitKey(tmpKey, keyLength, fState);
+    }
+    if (encRevision == 2) {
+      rc4InitKey(test, keyLength, fState);
       fx = fy = 0;
-      for (j = 0; j < 32; ++j) {
-	test2[j] = rc4DecryptByte(fState, &fx, &fy, test2[j]);
+      for (i = 0; i < 32; ++i) {
+	test2[i] = rc4DecryptByte(fState, &fx, &fy, ownerKey->getChar(i));
+      }
+    } else {
+      memcpy(test2, ownerKey->getCString(), 32);
+      for (i = 19; i >= 0; --i) {
+	for (j = 0; j < keyLength; ++j) {
+	  tmpKey[j] = test[j] ^ i;
+	}
+	rc4InitKey(tmpKey, keyLength, fState);
+	fx = fy = 0;
+	for (j = 0; j < 32; ++j) {
+	  test2[j] = rc4DecryptByte(fState, &fx, &fy, test2[j]);
+	}
       }
     }
-  }
-  userPassword2 = new GString((char *)test2, 32);
-  if (makeFileKey2(encVersion, encRevision, keyLength, ownerKey, userKey,
-		   permissions, fileID, userPassword2, fileKey)) {
-    *ownerPasswordOk = gTrue;
+    userPassword2 = new GString((char *)test2, 32);
+    if (makeFileKey2(encVersion, encRevision, keyLength, ownerKey, userKey,
+		     permissions, fileID, userPassword2, fileKey)) {
+      *ownerPasswordOk = gTrue;
+      delete userPassword2;
+      return gTrue;
+    }
     delete userPassword2;
-    return gTrue;
   }
-  *ownerPasswordOk = gFalse;
-  delete userPassword2;
 
   // try using the supplied user password
   return makeFileKey2(encVersion, encRevision, keyLength, ownerKey, userKey,
--
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