1 files changed, 157 insertions, 0 deletions
diff --git a/src/utility/binary.cc b/src/utility/binary.cc
new file mode 100644
index 00000000..5802c3bd
--- /dev/null
+++ b/src/utility/binary.cc
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2003-2007, John Wiegley.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of New Artisans LLC nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "utils.h"
+
+namespace ledger {
+namespace binary {
+
+void read_bool(std::istream& in, bool& num)
+{
+  read_guard(in, 0x2005);
+  unsigned char val;
+  in.read((char *)&val, sizeof(val));
+  num = val == 1;
+  read_guard(in, 0x2006);
+}
+
+void read_bool(const char *& data, bool& num)
+{
+  read_guard(data, 0x2005);
+  unsigned char val = *((unsigned char *) data);
+  data += sizeof(unsigned char);
+  num = val == 1;
+  read_guard(data, 0x2006);
+}
+
+void read_string(std::istream& in, string& str)
+{
+  read_guard(in, 0x3001);
+
+  unsigned char len;
+  read_number_nocheck(in, len);
+  if (len == 0xff) {
+    unsigned short slen;
+    read_number_nocheck(in, slen);
+    char * buf = new char[slen + 1];
+    in.read(buf, slen);
+    buf[slen] = '\0';
+    str = buf;
+    checked_array_delete(buf);
+  }
+  else if (len) {
+    char buf[256];
+    in.read(buf, len);
+    buf[len] = '\0';
+    str = buf;
+  } else {
+    str = "";
+  }
+
+  read_guard(in, 0x3002);
+}
+
+void read_string(const char *& data, string& str)
+{
+  read_guard(data, 0x3001);
+
+  unsigned char len;
+  read_number_nocheck(data, len);
+  if (len == 0xff) {
+    unsigned short slen;
+    read_number_nocheck(data, slen);
+    str = string(data, slen);
+    data += slen;
+  }
+  else if (len) {
+    str = string(data, len);
+    data += len;
+  }
+  else {
+    str = "";
+  }
+
+  read_guard(data, 0x3002);
+}
+
+void read_string(const char *& data, string * str)
+{
+  read_guard(data, 0x3001);
+
+  unsigned char len;
+  read_number_nocheck(data, len);
+  if (len == 0xff) {
+    unsigned short slen;
+    read_number_nocheck(data, slen);
+    new(str) string(data, slen);
+    data += slen;
+  }
+  else if (len) {
+    new(str) string(data, len);
+    data += len;
+  }
+  else {
+    new(str) string("");
+  }
+
+  read_guard(data, 0x3002);
+}
+
+
+void write_bool(std::ostream& out, bool num)
+{
+  write_guard(out, 0x2005);
+  unsigned char val = num ? 1 : 0;
+  out.write((char *)&val, sizeof(val));
+  write_guard(out, 0x2006);
+}
+
+void write_string(std::ostream& out, const string& str)
+{
+  write_guard(out, 0x3001);
+
+  unsigned long len = str.length();
+  if (len > 255) {
+    assert(len < 65536);
+    write_number_nocheck<unsigned char>(out, 0xff);
+    write_number_nocheck<unsigned short>(out, len);
+  } else {
+    write_number_nocheck<unsigned char>(out, len);
+  }
+
+  if (len)
+    out.write(str.c_str(), len);
+
+  write_guard(out, 0x3002);
+}
+
+} // namespace binary
+} // namespace ledger