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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2010 Brian Aker
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <plugin/utility_dictionary/dictionary.h>
#include <drizzled/atomics.h>
#include <drizzled/session.h>
extern char **environ;
using namespace drizzled;
using namespace std;
#define LARGEST_ENV_STRING 512
utility_dictionary::Environmental::Environmental() :
plugin::TableFunction("DATA_DICTIONARY", "ENVIRONMENTAL")
{
add_field("VARIABLE_NAME", plugin::TableFunction::STRING, LARGEST_ENV_STRING, true);
add_field("VARIABLE_VALUE", plugin::TableFunction::STRING, LARGEST_ENV_STRING, false);
}
utility_dictionary::Environmental::Generator::Generator(drizzled::Field **arg) :
drizzled::plugin::TableFunction::Generator(arg),
position(0)
{
position= environ;
}
bool utility_dictionary::Environmental::Generator::populate()
{
if (not *position)
return false;
char *value= NULL;
if ((value= strchr(*position, '=')))
{
value++;
}
if (value)
{
std::string substring(*position, 0, (size_t)(value - *position -1)); // The additional -1 is for the =
push(substring);
substring.assign(value, 0, LARGEST_ENV_STRING);
push(substring);
}
else
{
std::string substring(*position, 0, LARGEST_ENV_STRING);
push(false);
}
position++;
return true;
}
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