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openvpn-gui/misc.h

113 lines
3.6 KiB

/*
* OpenVPN-GUI -- A Windows GUI for OpenVPN.
*
* Copyright (C) 2013 Heiko Hund <heikoh@users.sf.net>
*
* 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 (see the file COPYING included with this
* distribution); if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef MISC_H
#define MISC_H
#include <wincrypt.h>
#include "options.h"
BOOL ManagementCommandFromInput(connection_t *, LPCSTR, HWND, int);
BOOL ManagementCommandFromTwoInputsBase64(connection_t*, LPCSTR, HWND, int, int);
BOOL ManagementCommandFromInputBase64(connection_t *, LPCSTR, HWND, int);
BOOL EnsureDirExists(LPTSTR);
BOOL streq(LPCSTR, LPCSTR);
BOOL strbegins(const char *str, const char *begin);
BOOL wcsbegins(LPCWSTR, LPCWSTR);
BOOL ForceForegroundWindow(HWND);
void DpiSetScale(options_t*, UINT dpix);
BOOL IsUserAdmin(VOID);
HANDLE InitSemaphore (WCHAR *);
BOOL CheckFileAccess (const TCHAR *path, int access);
BOOL Base64Encode(const char *input, int input_len, char **output);
int Base64Decode(const char *input, char **output);
WCHAR *Widen(const char *utf8);
WCHAR *WidenEx(UINT codepage, const char *utf8);
BOOL validate_input(const WCHAR *input, const WCHAR *exclude);
/* Concatenate two wide strings with a separator */
void wcs_concat2(WCHAR *dest, int len, const WCHAR *src1, const WCHAR *src2, const WCHAR *sep);
void CloseSemaphore(HANDLE sem);
/* Close a handle if not null or invalid */
void CloseHandleEx(LPHANDLE h);
/* Decode url encoded charcters in src and return the result as a newly
* allocated string. Returns NULL on error.
*/
char *url_decode(const char *src);
/* digest functions */
typedef struct md_ctx {
HCRYPTPROV prov;
HCRYPTHASH hash;
} md_ctx;
DWORD md_init(md_ctx *ctx, ALG_ID hash_type);
DWORD md_update(md_ctx *ctx, const BYTE *data, size_t size);
DWORD md_final(md_ctx *ctx, BYTE *md);
/* Open specified http/https URL using ShellExecute. */
BOOL open_url(const wchar_t *url);
void ImportConfigFile(const TCHAR* path, bool prompt_user);
/*
* Helper function to convert UCS-2 text from a dialog item to UTF-8.
* Caller must free *str if *len != 0.
*/
BOOL
GetDlgItemTextUtf8(HWND hDlg, int id, LPSTR* str, int* len);
/*
* Set env vars used by OpenSSL to sane values.
*/
void set_openssl_env_vars(void);
/* Return escaped copy of a string */
char *escape_string(const char *str);
/**
* Find a free port to bind to
* @param addr : Address to bind to -- if port >0 it's tried first.
* On return the port is set to the one found.
* @returns true on success, false on error. In case of error
* addr is unchanged.
*/
BOOL find_free_tcp_port(SOCKADDR_IN *addr);
/**
* Parse the config file of a connection profile for
* Managegment address and password.
* @param c : Pointer to connection profile
* On return c->manage.skaddr and c->manage.password
* are populated.
* @returns true on success false on error.
* Password not specified in the config file is not an error.
*/
BOOL ParseManagementAddress(connection_t *c);
#endif