wanproxy/common/uuid/uuid.cc
2015-08-31 14:01:44 +02:00

131 lines
3.8 KiB
C++

/*
* Copyright (c) 2010-2011 Juli Mallett. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR 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 <fstream>
#include <common/uuid/uuid.h>
////////////////////////////////////////////////////////////////////////////////
// //
// File: uuid.cc //
// Description: basic handling of standard UUID objects //
// Project: WANProxy XTech //
// Adapted by: Andreu Vidal Bramfeld-Software //
// Last modified: 2015-04-01 //
// //
////////////////////////////////////////////////////////////////////////////////
bool UUID::from_string (const uint8_t* str)
{
#ifdef USE_LIBUUID
int rv = uuid_parse ((const char*) str, uuid_);
if (rv == -1)
return (false);
ASSERT("/uuid/libuuid", rv == 0);
#else
uint32_t status;
uuid_from_string ((const char*) str, &uuid_, &status);
if (status != uuid_s_ok)
return (false);
#endif
return (true);
}
bool UUID::to_string (uint8_t* str) const
{
#ifdef USE_LIBUUID
uuid_unparse (uuid_, (char*) str);
#else
char *p;
uuid_to_string (&uuid_, &p, NULL);
ASSERT("/uuid/libc", p != NULL);
strcpy ((char*) str, p);
free (p);
#endif
return (true);
}
bool UUID::from_file (std::string& path)
{
std::fstream file;
std::string s;
file.open (path.c_str(), std::ios::in);
if (file.good())
{
file >> s;
return from_string ((const uint8_t*) s.c_str());
}
return false;
}
bool UUID::to_file (std::string& path) const
{
std::fstream file;
file.open (path.c_str(), std::ios::out);
if (file.good())
{
uint8_t str[UUID_STRING_SIZE + 1];
to_string (str);
std::string s ((const char*) str);
file << s;
return true;
}
return false;
}
bool UUID::decode (Buffer& buf)
{
if (buf.length() < UUID_STRING_SIZE)
return (false);
uint8_t str[UUID_STRING_SIZE + 1];
buf.moveout (str, UUID_STRING_SIZE);
str[UUID_STRING_SIZE] = 0;
return from_string (str);
}
bool UUID::encode (Buffer& buf) const
{
uint8_t str[UUID_STRING_SIZE + 1];
to_string (str);
buf.append (str, UUID_STRING_SIZE);
return (true);
}
void UUID::generate(void)
{
#ifdef USE_LIBUUID
uuid_generate (uuid_);
#else
uuid_create (&uuid_, NULL);
#endif
}
std::ostream& operator<< (std::ostream& os, const UUID& uuid)
{
uint8_t str[UUID_STRING_SIZE + 1];
uuid.to_string (str);
return os << str;
}