From 8c4e1f97686c412f88bb57827a84b776626d9980 Mon Sep 17 00:00:00 2001
From: David Kalnischkies <kalnischkies@gmail.com>
Date: Wed, 13 Jul 2011 23:23:04 +0200
Subject: * ftparchive/writer.cc:   - generate all checksums in one run over
 the file for Release

---
 debian/changelog     |  4 +++-
 ftparchive/writer.cc | 34 ++++++++--------------------------
 2 files changed, 11 insertions(+), 27 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index 9aeb2f809..7b1ca1df0 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -7,13 +7,15 @@ apt (0.8.16~exp3) UNRELEASEDexperimental; urgency=low
   * apt-pkg/acquire*.{cc,h}:
     - try even harder to support really big files in the fetcher by
       converting (hopefully) everything to 'long long' (Closes: #632271)
+  * ftparchive/writer.cc:
+    - generate all checksums in one run over the file for Release
 
   [ Michael Vogt ]
   * merge fixes from the debian/unstable upload
   * merge lp:~mvo/apt/sha512-template to get fixes for the 
     sha1/md5 verifiation (closes: #632520)
 
- -- David Kalnischkies <kalnischkies@gmail.com>  Tue, 05 Jul 2011 15:56:42 +0200
+ -- David Kalnischkies <kalnischkies@gmail.com>  Wed, 13 Jul 2011 23:22:14 +0200
 
 apt (0.8.16~exp2) experimental; urgency=low
 
diff --git a/ftparchive/writer.cc b/ftparchive/writer.cc
index c43e8f4b4..60db8b990 100644
--- a/ftparchive/writer.cc
+++ b/ftparchive/writer.cc
@@ -19,8 +19,7 @@
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/md5.h>
-#include <apt-pkg/sha1.h>
-#include <apt-pkg/sha2.h>
+#include <apt-pkg/hashes.h>
 #include <apt-pkg/deblistparser.h>
 
 #include <sys/types.h>
@@ -1040,35 +1039,18 @@ bool ReleaseWriter::DoPackage(string FileName)
 
    CheckSums[NewFileName].size = fd.Size();
 
+   Hashes hs;
+   hs.AddFD(fd.Fd(), 0, DoMD5, DoSHA1, DoSHA256, DoSHA512);
    if (DoMD5 == true)
-   {
-      MD5Summation MD5;
-      MD5.AddFD(fd.Fd(), fd.Size());
-      CheckSums[NewFileName].MD5 = MD5.Result();
-      fd.Seek(0);
-   }
+      CheckSums[NewFileName].MD5 = hs.MD5.Result();
    if (DoSHA1 == true)
-   {
-      SHA1Summation SHA1;
-      SHA1.AddFD(fd.Fd(), fd.Size());
-      CheckSums[NewFileName].SHA1 = SHA1.Result();
-      fd.Seek(0);
-   }
+      CheckSums[NewFileName].SHA1 = hs.SHA1.Result();
    if (DoSHA256 == true)
-   {
-      SHA256Summation SHA256;
-      SHA256.AddFD(fd.Fd(), fd.Size());
-      CheckSums[NewFileName].SHA256 = SHA256.Result();
-   }
-
+      CheckSums[NewFileName].SHA256 = hs.SHA256.Result();
    if (DoSHA512 == true)
-   {
-      SHA512Summation SHA512;
-      SHA512.AddFD(fd.Fd(), fd.Size());
-      CheckSums[NewFileName].SHA512 = SHA512.Result();
-   }
+      CheckSums[NewFileName].SHA512 = hs.SHA512.Result();
    fd.Close();
-   
+
    return true;
 }
 
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