Kaizen/external/parallel-rdp/parallel-rdp-standalone/util/environment.cpp

96 lines
2.4 KiB
C++

/* Copyright (c) 2017-2023 Hans-Kristian Arntzen
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
#include "environment.hpp"
#include <string>
#include <stdlib.h>
namespace Util
{
bool get_environment(const char *env, std::string &str)
{
#ifdef _WIN32
char buf[4096];
DWORD count = GetEnvironmentVariableA(env, buf, sizeof(buf));
if (count)
{
str = { buf, buf + count };
return true;
}
else
return false;
#else
if (const char *v = getenv(env))
{
str = v;
return true;
}
else
return false;
#endif
}
void set_environment(const char *env, const char *value)
{
#ifdef _WIN32
SetEnvironmentVariableA(env, value);
#else
setenv(env, value, 1);
#endif
}
std::string get_environment_string(const char *env, const char *default_value)
{
std::string v;
if (!get_environment(env, v))
v = default_value;
return v;
}
unsigned get_environment_uint(const char *env, unsigned default_value)
{
unsigned value = default_value;
std::string v;
if (get_environment(env, v))
value = unsigned(std::stoul(v));
return value;
}
int get_environment_int(const char *env, int default_value)
{
int value = default_value;
std::string v;
if (get_environment(env, v))
value = int(std::stol(v));
return value;
}
bool get_environment_bool(const char *env, bool default_value)
{
return get_environment_int(env, int(default_value)) != 0;
}
}