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      1 /*
      2  * libjingle
      3  * Copyright 2004--2005, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef TALK_BASE_WIN32_H_
     29 #define TALK_BASE_WIN32_H_
     30 
     31 #ifdef WIN32
     32 
     33 #ifndef WIN32_LEAN_AND_MEAN
     34 #define WIN32_LEAN_AND_MEAN
     35 #endif
     36 
     37 // Make sure we don't get min/max macros
     38 #ifndef NOMINMAX
     39 #define NOMINMAX
     40 #endif
     41 
     42 #include <winsock2.h>
     43 #include <windows.h>
     44 
     45 #ifndef SECURITY_MANDATORY_LABEL_AUTHORITY
     46 // Add defines that we use if we are compiling against older sdks
     47 #define SECURITY_MANDATORY_MEDIUM_RID               (0x00002000L)
     48 #define TokenIntegrityLevel static_cast<TOKEN_INFORMATION_CLASS>(0x19)
     49 typedef struct _TOKEN_MANDATORY_LABEL {
     50     SID_AND_ATTRIBUTES Label;
     51 } TOKEN_MANDATORY_LABEL, *PTOKEN_MANDATORY_LABEL;
     52 #endif  // SECURITY_MANDATORY_LABEL_AUTHORITY
     53 
     54 #undef SetPort
     55 
     56 #include <string>
     57 
     58 #include "talk/base/stringutils.h"
     59 #include "talk/base/basictypes.h"
     60 
     61 namespace talk_base {
     62 
     63 const char* win32_inet_ntop(int af, const void *src, char* dst, socklen_t size);
     64 int win32_inet_pton(int af, const char* src, void *dst);
     65 
     66 ///////////////////////////////////////////////////////////////////////////////
     67 
     68 inline std::wstring ToUtf16(const char* utf8, size_t len) {
     69   int len16 = ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len),
     70                                     NULL, 0);
     71   wchar_t* ws = STACK_ARRAY(wchar_t, len16);
     72   ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len), ws, len16);
     73   return std::wstring(ws, len16);
     74 }
     75 
     76 inline std::wstring ToUtf16(const std::string& str) {
     77   return ToUtf16(str.data(), str.length());
     78 }
     79 
     80 inline std::string ToUtf8(const wchar_t* wide, size_t len) {
     81   int len8 = ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len),
     82                                    NULL, 0, NULL, NULL);
     83   char* ns = STACK_ARRAY(char, len8);
     84   ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len), ns, len8,
     85                         NULL, NULL);
     86   return std::string(ns, len8);
     87 }
     88 
     89 inline std::string ToUtf8(const wchar_t* wide) {
     90   return ToUtf8(wide, wcslen(wide));
     91 }
     92 
     93 inline std::string ToUtf8(const std::wstring& wstr) {
     94   return ToUtf8(wstr.data(), wstr.length());
     95 }
     96 
     97 // Convert FILETIME to time_t
     98 void FileTimeToUnixTime(const FILETIME& ft, time_t* ut);
     99 
    100 // Convert time_t to FILETIME
    101 void UnixTimeToFileTime(const time_t& ut, FILETIME * ft);
    102 
    103 // Convert a Utf8 path representation to a non-length-limited Unicode pathname.
    104 bool Utf8ToWindowsFilename(const std::string& utf8, std::wstring* filename);
    105 
    106 // Convert a FILETIME to a UInt64
    107 inline uint64 ToUInt64(const FILETIME& ft) {
    108   ULARGE_INTEGER r = {ft.dwLowDateTime, ft.dwHighDateTime};
    109   return r.QuadPart;
    110 }
    111 
    112 enum WindowsMajorVersions {
    113   kWindows2000 = 5,
    114   kWindowsVista = 6,
    115 };
    116 bool GetOsVersion(int* major, int* minor, int* build);
    117 
    118 inline bool IsWindowsVistaOrLater() {
    119   int major;
    120   return (GetOsVersion(&major, NULL, NULL) && major >= kWindowsVista);
    121 }
    122 
    123 inline bool IsWindowsXpOrLater() {
    124   int major, minor;
    125   return (GetOsVersion(&major, &minor, NULL) &&
    126           (major >= kWindowsVista ||
    127           (major == kWindows2000 && minor >= 1)));
    128 }
    129 
    130 // Determine the current integrity level of the process.
    131 bool GetCurrentProcessIntegrityLevel(int* level);
    132 
    133 inline bool IsCurrentProcessLowIntegrity() {
    134   int level;
    135   return (GetCurrentProcessIntegrityLevel(&level) &&
    136       level < SECURITY_MANDATORY_MEDIUM_RID);
    137 }
    138 
    139 bool AdjustCurrentProcessPrivilege(const TCHAR* privilege, bool to_enable);
    140 
    141 ///////////////////////////////////////////////////////////////////////////////
    142 
    143 }  // namespace talk_base
    144 
    145 #endif  // WIN32
    146 #endif  // TALK_BASE_WIN32_H_
    147