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environ.C
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1998-04-16
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// $Id: environ.C,v 1.6 1998/04/16 13:49:23 zeller Exp $ -*- C++ -*-
// Environment commands
// Copyright (C) 1997 Technische Universitaet Braunschweig, Germany.
// Written by Andreas Zeller <zeller@ips.cs.tu-bs.de>.
//
// This file is part of DDD.
//
// DDD 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.
//
// DDD 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 DDD -- see the file COPYING.
// If not, write to the Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// DDD is the data display debugger.
// For details, see the DDD World-Wide-Web page,
// `http://www.cs.tu-bs.de/softech/ddd/',
// or send a mail to the DDD developers <ddd@ips.cs.tu-bs.de>.
char environ_rcsid[] =
"$Id: environ.C,v 1.6 1998/04/16 13:49:23 zeller Exp $";
#ifdef __GNUG__
#pragma implementation
#endif
#include "environ.h"
#include "StringA.h"
#include "bool.h"
#include "shell.h"
#include <stdlib.h> // getenv, putenv
#include <string.h>
static StringArray environment_names;
// Put NAME=VALUE into the environment
void put_environment(string name, string value)
{
string env_s = name + "=" + value;
char *env = new char[env_s.length() + 1];
strcpy(env, env_s);
putenv(env);
bool found = false;
for (int i = 0; i < environment_names.size() && !found; i++)
found = found || (environment_names[i] == name);
if (!found)
environment_names += name;
}
// Return NAME1=VALUE1 NAME2=VALUE2 for each name defined by PUT_ENVIRONMENT
string set_environment_command()
{
string cmd;
for (int i = 0; i < environment_names.size(); i++)
{
const string& name = environment_names[i];
char *env = getenv((char *)name);
if (env != 0)
cmd += name + "=" + sh_quote(env) + "; export " + name + "; ";
}
return cmd;
}