tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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ErrorMsg.cpp (1449B)

      1 // Windows/ErrorMsg.h
      2 
      3 #include "StdAfx.h"
      4 
      5 #ifndef _UNICODE
      6 #include "../Common/StringConvert.h"
      7 #endif
      8 
      9 #include "ErrorMsg.h"
     10 
     11 #ifndef _UNICODE
     12 extern bool g_IsNT;
     13 #endif
     14 
     15 namespace NWindows {
     16 namespace NError {
     17 
     18 static bool MyFormatMessage(DWORD errorCode, UString &message)
     19 {
     20  LPVOID msgBuf;
     21  #ifndef _UNICODE
     22  if (!g_IsNT)
     23  {
     24    if (::FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
     25        FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
     26        NULL, errorCode, 0, (LPTSTR) &msgBuf, 0, NULL) == 0)
     27      return false;
     28    message = GetUnicodeString((LPCTSTR)msgBuf);
     29  }
     30  else
     31  #endif
     32  {
     33    if (::FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
     34        FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
     35        NULL, errorCode, 0, (LPWSTR) &msgBuf, 0, NULL) == 0)
     36      return false;
     37    message = (LPCWSTR)msgBuf;
     38  }
     39  ::LocalFree(msgBuf);
     40  return true;
     41 }
     42 
     43 UString MyFormatMessage(DWORD errorCode)
     44 {
     45  UString m;
     46  if (!MyFormatMessage(errorCode, m) || m.IsEmpty())
     47  {
     48    char s[16];
     49    for (int i = 0; i < 8; i++)
     50    {
     51      unsigned t = errorCode & 0xF;
     52      errorCode >>= 4;
     53      s[7 - i] = (char)((t < 10) ? ('0' + t) : ('A' + (t - 10)));
     54    }
     55    s[8] = 0;
     56    m += "Error #";
     57    m += s;
     58  }
     59  else if (m.Len() >= 2
     60      && m[m.Len() - 1] == 0x0A
     61      && m[m.Len() - 2] == 0x0D)
     62    m.DeleteFrom(m.Len() - 2);
     63  return m;
     64 }
     65 
     66 }}