1 files changed, 47 insertions, 0 deletions
diff --git a/apt-pkg/contrib/sha1.h b/apt-pkg/contrib/sha1.h
new file mode 100644
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+++ b/apt-pkg/contrib/sha1.h
@@ -0,0 +1,47 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   SHA1SumValue - Storage for a SHA-1 hash.
+   SHA1Summation - SHA-1 Secure Hash Algorithm.
+   
+   This is a C++ interface to a set of SHA1Sum functions, that mirrors
+   the equivalent MD5 classes. 
+
+   ##################################################################### */
+									/*}}}*/
+#ifndef APTPKG_SHA1_H
+#define APTPKG_SHA1_H
+
+#include "hashsum_template.h"
+
+#ifndef APT_10_CLEANER_HEADERS
+#include <algorithm>
+#include <cstring>
+#include <string>
+#endif
+#ifndef APT_8_CLEANER_HEADERS
+using std::string;
+using std::min;
+#endif
+
+typedef  HashSumValue<160> SHA1SumValue;
+
+class SHA1Summation : public SummationImplementation
+{
+   /* assumes 64-bit alignment just in case */
+   unsigned char Buffer[64] __attribute__((aligned(8)));
+   unsigned char State[5*4] __attribute__((aligned(8)));
+   unsigned char Count[2*4] __attribute__((aligned(8)));
+   bool Done;
+   
+   public:
+   bool Add(const unsigned char *inbuf, unsigned long long inlen) APT_OVERRIDE APT_NONNULL(2);
+   using SummationImplementation::Add;
+
+   SHA1SumValue Result();
+   
+   SHA1Summation();
+};
+
+#endif