Botan  2.1.0
Crypto and TLS for C++11
pipe_io.cpp
Go to the documentation of this file.
1 /*
2 * Pipe I/O
3 * (C) 1999-2007 Jack Lloyd
4 *
5 * Botan is released under the Simplified BSD License (see license.txt)
6 */
7 
8 #include <botan/pipe.h>
9 #include <iostream>
10 
11 namespace Botan {
12 
13 /*
14 * Write data from a pipe into an ostream
15 */
16 std::ostream& operator<<(std::ostream& stream, Pipe& pipe)
17  {
18  secure_vector<uint8_t> buffer(DEFAULT_BUFFERSIZE);
19  while(stream.good() && pipe.remaining())
20  {
21  size_t got = pipe.read(buffer.data(), buffer.size());
22  stream.write(reinterpret_cast<const char*>(buffer.data()), got);
23  }
24  if(!stream.good())
25  throw Stream_IO_Error("Pipe output operator (iostream) has failed");
26  return stream;
27  }
28 
29 /*
30 * Read data from an istream into a pipe
31 */
32 std::istream& operator>>(std::istream& stream, Pipe& pipe)
33  {
34  secure_vector<uint8_t> buffer(DEFAULT_BUFFERSIZE);
35  while(stream.good())
36  {
37  stream.read(reinterpret_cast<char*>(buffer.data()), buffer.size());
38  pipe.write(buffer.data(), stream.gcount());
39  }
40  if(stream.bad() || (stream.fail() && !stream.eof()))
41  throw Stream_IO_Error("Pipe input operator (iostream) has failed");
42  return stream;
43  }
44 
45 }
std::istream & operator>>(std::istream &in, X509_DN &dn)
Definition: x509_dn.cpp:325
size_t remaining(message_id msg=DEFAULT_MESSAGE) const BOTAN_WARN_UNUSED_RESULT
Definition: pipe_rw.cpp:130
std::ostream & operator<<(std::ostream &out, const X509_DN &dn)
Definition: x509_dn.cpp:299
size_t read(uint8_t output[], size_t length) override BOTAN_WARN_UNUSED_RESULT
Definition: pipe_rw.cpp:81
std::vector< T, secure_allocator< T >> secure_vector
Definition: secmem.h:121
Definition: alg_id.cpp:13
void write(const uint8_t in[], size_t length)
Definition: pipe_rw.cpp:34