diff options
| author | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
|---|---|---|
| committer | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
| commit | 48540940b6c28bb4378abfeb500ec45a625b37b6 (patch) | |
| tree | 2ef294c0763e802f91d868bdef4229b6868527de /plugins/CryptoPP/crypto/misc.cpp | |
| parent | 5c350913f011e119127baeb32a6aedeb4f0d33bc (diff) | |
initial commit
git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/CryptoPP/crypto/misc.cpp')
| -rw-r--r-- | plugins/CryptoPP/crypto/misc.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/plugins/CryptoPP/crypto/misc.cpp b/plugins/CryptoPP/crypto/misc.cpp new file mode 100644 index 0000000000..92aa7d2fd9 --- /dev/null +++ b/plugins/CryptoPP/crypto/misc.cpp @@ -0,0 +1,98 @@ +// misc.cpp - written and placed in the public domain by Wei Dai
+
+#include "pch.h"
+
+#ifndef CRYPTOPP_IMPORTS
+
+#include "misc.h"
+#include "words.h"
+#include <new>
+
+NAMESPACE_BEGIN(CryptoPP)
+
+void xorbuf(byte *buf, const byte *mask, size_t count)
+{
+ size_t i;
+
+ if (IsAligned<word32>(buf) && IsAligned<word32>(mask))
+ {
+ #if defined(WORD64_AVAILABLE) && !defined(CRYPTOPP_SLOW_WORD64)
+ if (IsAligned<word64>(buf) && IsAligned<word64>(mask))
+ {
+ for (i=0; i<count/8; i++)
+ ((word64*)buf)[i] ^= ((word64*)mask)[i];
+ count -= 8*i;
+ if (!count)
+ return;
+ buf += 8*i;
+ mask += 8*i;
+ }
+ #endif
+
+ for (i=0; i<count/4; i++)
+ ((word32*)buf)[i] ^= ((word32*)mask)[i];
+ count -= 4*i;
+ if (!count)
+ return;
+ buf += 4*i;
+ mask += 4*i;
+ }
+
+ for (i=0; i<count; i++)
+ buf[i] ^= mask[i];
+}
+
+void xorbuf(byte *output, const byte *input, const byte *mask, size_t count)
+{
+ size_t i;
+
+ if (IsAligned<word32>(output) && IsAligned<word32>(input) && IsAligned<word32>(mask))
+ {
+ #if defined(WORD64_AVAILABLE) && !defined(CRYPTOPP_SLOW_WORD64)
+ if (IsAligned<word64>(output) && IsAligned<word64>(input) && IsAligned<word64>(mask))
+ {
+ for (i=0; i<count/8; i++)
+ ((word64*)output)[i] = ((word64*)input)[i] ^ ((word64*)mask)[i];
+ count -= 8*i;
+ if (!count)
+ return;
+ output += 8*i;
+ input += 8*i;
+ mask += 8*i;
+ }
+ #endif
+
+ for (i=0; i<count/4; i++)
+ ((word32*)output)[i] = ((word32*)input)[i] ^ ((word32*)mask)[i];
+ count -= 4*i;
+ if (!count)
+ return;
+ output += 4*i;
+ input += 4*i;
+ mask += 4*i;
+ }
+
+ for (i=0; i<count; i++)
+ output[i] = input[i] ^ mask[i];
+}
+
+#if !(defined(_MSC_VER) && (_MSC_VER < 1300))
+using std::new_handler;
+using std::set_new_handler;
+#endif
+
+void CallNewHandler()
+{
+ new_handler newHandler = set_new_handler(NULL);
+ if (newHandler)
+ set_new_handler(newHandler);
+
+ if (newHandler)
+ newHandler();
+ else
+ throw std::bad_alloc();
+}
+
+NAMESPACE_END
+
+#endif
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