summaryrefslogtreecommitdiff
path: root/apt-pkg/contrib/sha2.cc
diff options
context:
space:
mode:
authorDavid Kalnischkies <kalnischkies@gmail.com>2011-06-29 19:21:34 +0200
committerDavid Kalnischkies <kalnischkies@gmail.com>2011-06-29 19:21:34 +0200
commit8f8ed8f4e50fd98aa43ee69971cac8bda55760f1 (patch)
tree79dbb2f29aca55db49f8e7213094a8423caa343e /apt-pkg/contrib/sha2.cc
parentd953d210bb54accb416f2144104b79dcd29198ba (diff)
parent6f747894998e10649d0237fe5f7b9b85a5266f1f (diff)
merge with debian-experimental 0.8.16~exp2 release
Diffstat (limited to 'apt-pkg/contrib/sha2.cc')
-rw-r--r--apt-pkg/contrib/sha2.cc43
1 files changed, 43 insertions, 0 deletions
diff --git a/apt-pkg/contrib/sha2.cc b/apt-pkg/contrib/sha2.cc
new file mode 100644
index 000000000..4604d3167
--- /dev/null
+++ b/apt-pkg/contrib/sha2.cc
@@ -0,0 +1,43 @@
+/*
+ * Cryptographic API. {{{
+ *
+ * SHA-512, as specified in
+ * http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */ /*}}}*/
+
+#ifdef __GNUG__
+#pragma implementation "apt-pkg/sha2.h"
+#endif
+
+#include <apt-pkg/sha2.h>
+#include <apt-pkg/strutl.h>
+
+// SHA2Summation::AddFD - Add content of file into the checksum /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool SHA2SummationBase::AddFD(int Fd,unsigned long Size){
+ unsigned char Buf[64 * 64];
+ int Res = 0;
+ int ToEOF = (Size == 0);
+ while (Size != 0 || ToEOF)
+ {
+ unsigned n = sizeof(Buf);
+ if (!ToEOF) n = min(Size,(unsigned long)n);
+ Res = read(Fd,Buf,n);
+ if (Res < 0 || (!ToEOF && (unsigned) Res != n)) // error, or short read
+ return false;
+ if (ToEOF && Res == 0) // EOF
+ break;
+ Size -= Res;
+ Add(Buf,Res);
+ }
+ return true;
+}
+ /*}}}*/
+