1 files changed, 167 insertions, 0 deletions
diff --git a/old/botan/src/filters/pipe_rw.cpp b/old/botan/src/filters/pipe_rw.cpp
new file mode 100644
index 0000000..41b57a7
--- /dev/null
+++ b/old/botan/src/filters/pipe_rw.cpp
@@ -0,0 +1,167 @@
+/*
+* Pipe Reading/Writing
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/pipe.h>
+#include <botan/out_buf.h>
+#include <botan/secqueue.h>
+
+namespace Botan {
+
+/*
+* Look up the canonical ID for a queue
+*/
+Pipe::message_id Pipe::get_message_no(const std::string& func_name,
+                                      message_id msg) const
+   {
+   if(msg == DEFAULT_MESSAGE)
+      msg = default_msg();
+   else if(msg == LAST_MESSAGE)
+      msg = message_count() - 1;
+
+   if(msg >= message_count())
+      throw Invalid_Message_Number(func_name, msg);
+
+   return msg;
+   }
+
+/*
+* Write into a Pipe
+*/
+void Pipe::write(const byte input[], u32bit length)
+   {
+   if(!inside_msg)
+      throw Exception("Cannot write to a Pipe while it is not processing");
+   pipe->write(input, length);
+   }
+
+/*
+* Write into a Pipe
+*/
+void Pipe::write(const MemoryRegion<byte>& input)
+   {
+   write(input.begin(), input.size());
+   }
+
+/*
+* Write a string into a Pipe
+*/
+void Pipe::write(const std::string& str)
+   {
+   write(reinterpret_cast<const byte*>(str.data()), str.size());
+   }
+
+/*
+* Write a single byte into a Pipe
+*/
+void Pipe::write(byte input)
+   {
+   write(&input, 1);
+   }
+
+/*
+* Write the contents of a DataSource into a Pipe
+*/
+void Pipe::write(DataSource& source)
+   {
+   SecureVector<byte> buffer(DEFAULT_BUFFERSIZE);
+   while(!source.end_of_data())
+      {
+      u32bit got = source.read(buffer, buffer.size());
+      write(buffer, got);
+      }
+   }
+
+/*
+* Read some data from the pipe
+*/
+u32bit Pipe::read(byte output[], u32bit length, message_id msg)
+   {
+   return outputs->read(output, length, get_message_no("read", msg));
+   }
+
+/*
+* Read some data from the pipe
+*/
+u32bit Pipe::read(byte output[], u32bit length)
+   {
+   return read(output, length, DEFAULT_MESSAGE);
+   }
+
+/*
+* Read a single byte from the pipe
+*/
+u32bit Pipe::read(byte& out, message_id msg)
+   {
+   return read(&out, 1, msg);
+   }
+
+/*
+* Return all data in the pipe
+*/
+SecureVector<byte> Pipe::read_all(message_id msg)
+   {
+   msg = ((msg != DEFAULT_MESSAGE) ? msg : default_msg());
+   SecureVector<byte> buffer(remaining(msg));
+   read(buffer, buffer.size(), msg);
+   return buffer;
+   }
+
+/*
+* Return all data in the pipe as a string
+*/
+std::string Pipe::read_all_as_string(message_id msg)
+   {
+   msg = ((msg != DEFAULT_MESSAGE) ? msg : default_msg());
+   SecureVector<byte> buffer(DEFAULT_BUFFERSIZE);
+   std::string str;
+   str.reserve(remaining(msg));
+
+   while(true)
+      {
+      u32bit got = read(buffer, buffer.size(), msg);
+      if(got == 0)
+         break;
+      str.append(reinterpret_cast<const char*>(buffer.begin()), got);
+      }
+
+   return str;
+   }
+
+/*
+* Find out how many bytes are ready to read
+*/
+u32bit Pipe::remaining(message_id msg) const
+   {
+   return outputs->remaining(get_message_no("remaining", msg));
+   }
+
+/*
+* Peek at some data in the pipe
+*/
+u32bit Pipe::peek(byte output[], u32bit length,
+                  u32bit offset, message_id msg) const
+   {
+   return outputs->peek(output, length, offset, get_message_no("peek", msg));
+   }
+
+/*
+* Peek at some data in the pipe
+*/
+u32bit Pipe::peek(byte output[], u32bit length, u32bit offset) const
+   {
+   return peek(output, length, offset, DEFAULT_MESSAGE);
+   }
+
+/*
+* Peek at a byte in the pipe
+*/
+u32bit Pipe::peek(byte& out, u32bit offset, message_id msg) const
+   {
+   return peek(&out, 1, offset, msg);
+   }
+
+}