/**
 * WinPR: Windows Portable Runtime
 * Process Environment Functions
 *
 * Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <winpr/environment.h>

#ifndef _WIN32

#include <winpr/crt.h>

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

DWORD GetCurrentDirectoryA(DWORD nBufferLength, LPSTR lpBuffer)
{
	char* cwd;
	int length;

	cwd = getcwd(NULL, 0);

	if (!cwd)
		return 0;

	length = strlen(cwd);

	if ((nBufferLength == 0) && (lpBuffer == NULL))
	{
		free(cwd);

		return (DWORD) length;
	}
	else
	{
		if (lpBuffer == NULL)
		{
			free(cwd);
			return 0;
		}

		if ((length + 1) > nBufferLength)
		{
			free(cwd);
			return (DWORD) (length + 1);
		}

		memcpy(lpBuffer, cwd, length + 1);
		return length;
	}

	return 0;
}

DWORD GetCurrentDirectoryW(DWORD nBufferLength, LPWSTR lpBuffer)
{
	return 0;
}

BOOL SetCurrentDirectoryA(LPCSTR lpPathName)
{
	return TRUE;
}

BOOL SetCurrentDirectoryW(LPCWSTR lpPathName)
{
	return TRUE;
}

DWORD SearchPathA(LPCSTR lpPath, LPCSTR lpFileName, LPCSTR lpExtension, DWORD nBufferLength, LPSTR lpBuffer, LPSTR* lpFilePart)
{
	return 0;
}

DWORD SearchPathW(LPCWSTR lpPath, LPCWSTR lpFileName, LPCWSTR lpExtension, DWORD nBufferLength, LPWSTR lpBuffer, LPWSTR* lpFilePart)
{
	return 0;
}

HANDLE GetStdHandle(DWORD nStdHandle)
{
	return NULL;
}

BOOL SetStdHandle(DWORD nStdHandle, HANDLE hHandle)
{
	return TRUE;
}

BOOL SetStdHandleEx(DWORD dwStdHandle, HANDLE hNewHandle, HANDLE* phOldHandle)
{
	return TRUE;
}

LPSTR GetCommandLineA(VOID)
{
	return NULL;
}

LPWSTR GetCommandLineW(VOID)
{
	return NULL;
}

BOOL NeedCurrentDirectoryForExePathA(LPCSTR ExeName)
{
	return TRUE;
}

BOOL NeedCurrentDirectoryForExePathW(LPCWSTR ExeName)
{
	return TRUE;
}

DWORD GetEnvironmentVariableA(LPCSTR lpName, LPSTR lpBuffer, DWORD nSize)
{
	int length;
	char* env = NULL;

	env = getenv(lpName);

	if (!env)
		return 0;

	length = strlen(env);

	if ((length + 1 > nSize) || (!lpBuffer))
		return length + 1;

	CopyMemory(lpBuffer, env, length + 1);

	return length;
}

DWORD GetEnvironmentVariableW(LPCWSTR lpName, LPWSTR lpBuffer, DWORD nSize)
{
	return 0;
}

BOOL SetEnvironmentVariableA(LPCSTR lpName, LPCSTR lpValue)
{
	return TRUE;
}

BOOL SetEnvironmentVariableW(LPCWSTR lpName, LPCWSTR lpValue)
{
	return TRUE;
}

LPCH GetEnvironmentStrings(VOID)
{
	return NULL;
}

LPWCH GetEnvironmentStringsW(VOID)
{
	return NULL;
}

BOOL SetEnvironmentStringsA(LPCH NewEnvironment)
{
	return TRUE;
}

BOOL SetEnvironmentStringsW(LPWCH NewEnvironment)
{
	return TRUE;
}

DWORD ExpandEnvironmentStringsA(LPCSTR lpSrc, LPSTR lpDst, DWORD nSize)
{
	return 0;
}

DWORD ExpandEnvironmentStringsW(LPCWSTR lpSrc, LPWSTR lpDst, DWORD nSize)
{
	return 0;
}

BOOL FreeEnvironmentStringsA(LPCH lpszEnvironmentBlock)
{
	return TRUE;
}

BOOL FreeEnvironmentStringsW(LPWCH lpszEnvironmentBlock)
{
	return TRUE;
}

#endif