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//
// Automated Testing Framework (atf)
//
// Copyright (c) 2007 The NetBSD Foundation, Inc.
// 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 THE NETBSD FOUNDATION, INC. 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 THE FOUNDATION 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.
//
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
extern "C" {
#include <errno.h>
#include <stdlib.h>
#include <string.h>
}
#include <cassert>
#include "env.hpp"
#include "exceptions.hpp"
namespace impl = tools::env;
#define IMPL_NAME "tools::env"
// ------------------------------------------------------------------------
// Free functions.
// ------------------------------------------------------------------------
std::string
impl::get(const std::string& name)
{
const char* val = getenv(name.c_str());
assert(val != NULL);
return val;
}
bool
impl::has(const std::string& name)
{
return getenv(name.c_str()) != NULL;
}
void
impl::set(const std::string& name, const std::string& val)
{
#if defined(HAVE_SETENV)
if (setenv(name.c_str(), val.c_str(), 1) == -1)
throw tools::system_error(IMPL_NAME "::set",
"Cannot set environment variable '" + name +
"' to '" + val + "'",
errno);
#elif defined(HAVE_PUTENV)
const std::string buf = name + "=" + val;
if (putenv(strdup(buf.c_str())) == -1)
throw tools::system_error(IMPL_NAME "::set",
"Cannot set environment variable '" + name +
"' to '" + val + "'",
errno);
#else
# error "Don't know how to set an environment variable."
#endif
}
void
impl::unset(const std::string& name)
{
#if defined(HAVE_UNSETENV)
unsetenv(name.c_str());
#elif defined(HAVE_PUTENV)
const std::string buf = name + "=";
if (putenv(strdup(buf.c_str())) == -1)
throw tools::system_error(IMPL_NAME "::unset",
"Cannot unset environment variable '" +
name + "'", errno);
#else
# error "Don't know how to unset an environment variable."
#endif
}
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