Security-222.tar.gz

[apple/security.git] / cdsa / cdsa_utilities / buffers.cpp

diff --git a/cdsa/cdsa_utilities/buffers.cpp b/cdsa/cdsa_utilities/buffers.cpp
deleted file mode 100644 (file)
index 25bda02..0000000
--- a/cdsa/cdsa_utilities/buffers.cpp
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
- * 
- * The contents of this file constitute Original Code as defined in and are
- * subject to the Apple Public Source License Version 1.2 (the 'License').
- * You may not use this file except in compliance with the License. Please obtain
- * a copy of the License at http://www.apple.com/publicsource and read it before
- * using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
- * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
- * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
- * specific language governing rights and limitations under the License.
- */
-
-
-//
-// buffer - simple data buffers with convenience
-//
-#include "buffers.h"
-#include <Security/debugging.h>
-#include <algorithm>
-
-
-namespace Security {
-
-
-//
-// Construct an empty Buffer from newly allocated memory
-//
-Buffer::Buffer(size_t size)
-    : mBase(new char[size]), mTop(mBase + size), mOwningMemory(true)
-{
-    mStart = mEnd = mBase;
-}
-
-
-//
-// Construct a buffer from given memory, with given fill or ownership
-//
-Buffer::Buffer(void *base, size_t size, bool filled, bool owned) 
-    : mBase(reinterpret_cast<char *>(base)), mTop(mBase + size), mOwningMemory(owned)
-{
-    mStart = mBase;
-    mEnd = filled ? mTop : mBase;
-}
-
-
-//
-// Destroying a buffer deallocates its memory iff it owns it.
-//
-Buffer::~Buffer()
-{
-    if (mOwningMemory)
-        delete[] mBase;
-}
-
-
-//
-// Shuffle buffer contents to make more room.
-// Takes minimum size needed. Returns size available.
-//
-size_t Buffer::shuffle(size_t needed)
-{
-    assert(available() < needed);      // shouldn't be called otherwise
-    size_t length = this->length();
-    memmove(mBase, mStart, length);
-    mStart = mBase;
-    mEnd = mStart + length;
-    return min(needed, available());
-}
-
-
-//
-// Formatted append to buffer
-//
-void Buffer::printf(const char *format, ...)
-{
-    va_list args;
-    va_start(args, format);
-    vprintf(format, args);
-    va_end(args);
-}
-
-void Buffer::vprintf(const char *format, va_list args)
-{
-    unsigned int written = vsnprintf(mEnd, mTop - mEnd, format, args);
-    if (written < available()) {
-        // overflow on formatting. Reshuffle and try again
-        shuffle();
-        written = vsnprintf(mEnd, available(), format, args);
-        assert(written < available()); //@@@ throw here?
-    }
-    mEnd += written;   // note: zero terminator discarded here
-}
-
-
-}      // end namespace Security