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// file : openssl/protocol.hxx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#ifndef OPENSSL_PROTOCOL_HXX
#define OPENSSL_PROTOCOL_HXX
#include <openssl/types.hxx>
#include <openssl/utility.hxx>
namespace openssl
{
// Simple client/agent communication protocol.
//
// Return the file descriptor connected to the agent's Unix-domain socket.
// Throw io_error on the underlying OS error.
//
auto_fd
connect (const path& socket);
class request
{
public:
string cmd;
strings args; // Shouldn't contain NULL characters.
vector<char> input;
// Create an empty request, normally before reading it from a stream.
//
request () = default;
request (string c, strings a, vector<char> i)
: cmd (move (c)), args (move (a)), input (move (i)) {}
explicit
request (string c): cmd (move (c)) {}
request (string c, strings a): cmd (move (c)), args (move (a)) {}
request (string c, vector<char> i): cmd (move (c)), input (move (i)) {}
};
class response
{
public:
uint8_t status;
vector<char> output;
string error;
response (uint8_t s, vector<char> o, string e)
: status (s), output (move (o)), error (move (e)) {}
// Success.
//
response (): status (0) {}
explicit
response (vector<char> o): status (0), output (move (o)) {}
// Error.
//
explicit
response (string e, uint8_t s = 1): status (s), error (move (e)) {}
};
// The stream's exception mask should have at least failbit and badbit set
// (that is the default for fdstreams).
//
ostream& operator<< (ostream&, const request&);
istream& operator>> (istream&, request&);
ostream& operator<< (ostream&, const response&);
istream& operator>> (istream&, response&);
}
#endif // OPENSSL_PROTOCOL_HXX
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