From c7b5ce1cf17ebbf845b58ce33956251176d471b2 Mon Sep 17 00:00:00 2001
From: Arch Librarian <arch@canonical.com>
Date: Mon, 20 Sep 2004 16:52:05 +0000
Subject: Fix for missing \n\r Author: jgg Date: 1998-12-08 05:24:41 GMT Fix
 for missing \n\r

---
 apt-pkg/tagfile.cc | 28 +++++++++++++++++++++-------
 1 file changed, 21 insertions(+), 7 deletions(-)

(limited to 'apt-pkg/tagfile.cc')

diff --git a/apt-pkg/tagfile.cc b/apt-pkg/tagfile.cc
index 68ab7856e..7f2bf6b1d 100644
--- a/apt-pkg/tagfile.cc
+++ b/apt-pkg/tagfile.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: tagfile.cc,v 1.17 1998/12/07 07:26:22 jgg Exp $
+// $Id: tagfile.cc,v 1.18 1998/12/08 05:24:41 jgg Exp $
 /* ######################################################################
 
    Fast scanner for RFC-822 type header information
@@ -45,7 +45,7 @@ bool pkgTagFile::Step(pkgTagSection &Tag)
 	 return false;
       
       if (Tag.Scan(Start,End - Start) == false)
-	 return _error->Error("Unable to parse package file");
+	 return _error->Error("Unable to parse package file %s",Fd.Name().c_str());
    }   
    Start += Tag.size();
    iOffset += Tag.size();
@@ -61,17 +61,28 @@ bool pkgTagFile::Fill()
 {
    unsigned long EndSize = End - Start;
    
+   memmove(Buffer,Start,EndSize);
+   Start = Buffer;
+   End = Buffer + EndSize;
+   
    if (Left == 0)
    {
-      if (EndSize <= 1)
+      if (EndSize <= 3)
 	 return false;
+      if (Size - (End - Buffer) < 4)
+	 return true;
+      
+      // Append a double new line if one does not exist
+      unsigned int LineCount = 0;
+      for (const char *E = End - 1; E - End < 6 && (*E == '\n' || *E == '\r'); E--)
+	 if (*E == '\n')
+	    LineCount++;
+      for (; LineCount < 2; LineCount++)
+	 *End++ = '\n';
+      
       return true;
    }
    
-   memmove(Buffer,Start,EndSize);
-   Start = Buffer;
-   End = Buffer + EndSize;
-   
    // See if only a bit of the file is left
    if (Left < Size - (End - Buffer))
    {
@@ -122,6 +133,9 @@ bool pkgTagSection::Scan(const char *Start,unsigned long MaxLength)
    const char *End = Start + MaxLength;
    Stop = Section = Start;
    memset(AlphaIndexes,0,sizeof(AlphaIndexes));
+
+   if (Stop == 0)
+      return false;
    
    TagCount = 0;
    while (TagCount < sizeof(Indexes)/sizeof(Indexes[0]))
-- 
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