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      1 /*
      2  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #ifndef WEBRTC_BASE_WIN32_H_
     12 #define WEBRTC_BASE_WIN32_H_
     13 
     14 #if defined(WEBRTC_WIN)
     15 
     16 #ifndef WIN32_LEAN_AND_MEAN
     17 #define WIN32_LEAN_AND_MEAN
     18 #endif
     19 
     20 // Make sure we don't get min/max macros
     21 #ifndef NOMINMAX
     22 #define NOMINMAX
     23 #endif
     24 
     25 #include <winsock2.h>
     26 #include <windows.h>
     27 
     28 #ifndef SECURITY_MANDATORY_LABEL_AUTHORITY
     29 // Add defines that we use if we are compiling against older sdks
     30 #define SECURITY_MANDATORY_MEDIUM_RID               (0x00002000L)
     31 #define TokenIntegrityLevel static_cast<TOKEN_INFORMATION_CLASS>(0x19)
     32 typedef struct _TOKEN_MANDATORY_LABEL {
     33     SID_AND_ATTRIBUTES Label;
     34 } TOKEN_MANDATORY_LABEL, *PTOKEN_MANDATORY_LABEL;
     35 #endif  // SECURITY_MANDATORY_LABEL_AUTHORITY
     36 
     37 #undef SetPort
     38 
     39 #include <string>
     40 
     41 #include "webrtc/base/stringutils.h"
     42 #include "webrtc/base/basictypes.h"
     43 
     44 namespace rtc {
     45 
     46 const char* win32_inet_ntop(int af, const void *src, char* dst, socklen_t size);
     47 int win32_inet_pton(int af, const char* src, void *dst);
     48 
     49 inline std::wstring ToUtf16(const char* utf8, size_t len) {
     50   int len16 = ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len),
     51                                     NULL, 0);
     52   wchar_t* ws = STACK_ARRAY(wchar_t, len16);
     53   ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len), ws, len16);
     54   return std::wstring(ws, len16);
     55 }
     56 
     57 inline std::wstring ToUtf16(const std::string& str) {
     58   return ToUtf16(str.data(), str.length());
     59 }
     60 
     61 inline std::string ToUtf8(const wchar_t* wide, size_t len) {
     62   int len8 = ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len),
     63                                    NULL, 0, NULL, NULL);
     64   char* ns = STACK_ARRAY(char, len8);
     65   ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len), ns, len8,
     66                         NULL, NULL);
     67   return std::string(ns, len8);
     68 }
     69 
     70 inline std::string ToUtf8(const wchar_t* wide) {
     71   return ToUtf8(wide, wcslen(wide));
     72 }
     73 
     74 inline std::string ToUtf8(const std::wstring& wstr) {
     75   return ToUtf8(wstr.data(), wstr.length());
     76 }
     77 
     78 // Convert FILETIME to time_t
     79 void FileTimeToUnixTime(const FILETIME& ft, time_t* ut);
     80 
     81 // Convert time_t to FILETIME
     82 void UnixTimeToFileTime(const time_t& ut, FILETIME * ft);
     83 
     84 // Convert a Utf8 path representation to a non-length-limited Unicode pathname.
     85 bool Utf8ToWindowsFilename(const std::string& utf8, std::wstring* filename);
     86 
     87 // Convert a FILETIME to a UInt64
     88 inline uint64_t ToUInt64(const FILETIME& ft) {
     89   ULARGE_INTEGER r = {{ft.dwLowDateTime, ft.dwHighDateTime}};
     90   return r.QuadPart;
     91 }
     92 
     93 enum WindowsMajorVersions {
     94   kWindows2000 = 5,
     95   kWindowsVista = 6,
     96 };
     97 bool GetOsVersion(int* major, int* minor, int* build);
     98 
     99 inline bool IsWindowsVistaOrLater() {
    100   int major;
    101   return (GetOsVersion(&major, NULL, NULL) && major >= kWindowsVista);
    102 }
    103 
    104 inline bool IsWindowsXpOrLater() {
    105   int major, minor;
    106   return (GetOsVersion(&major, &minor, NULL) &&
    107           (major >= kWindowsVista ||
    108           (major == kWindows2000 && minor >= 1)));
    109 }
    110 
    111 inline bool IsWindows8OrLater() {
    112   int major, minor;
    113   return (GetOsVersion(&major, &minor, NULL) &&
    114           (major > kWindowsVista ||
    115           (major == kWindowsVista && minor >= 2)));
    116 }
    117 
    118 // Determine the current integrity level of the process.
    119 bool GetCurrentProcessIntegrityLevel(int* level);
    120 
    121 inline bool IsCurrentProcessLowIntegrity() {
    122   int level;
    123   return (GetCurrentProcessIntegrityLevel(&level) &&
    124       level < SECURITY_MANDATORY_MEDIUM_RID);
    125 }
    126 
    127 bool AdjustCurrentProcessPrivilege(const TCHAR* privilege, bool to_enable);
    128 
    129 }  // namespace rtc
    130 
    131 #endif  // WEBRTC_WIN
    132 #endif  // WEBRTC_BASE_WIN32_H_
    133