Source code of Windows XP (NT5)
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#include <string.h>
#include <ntverp.h>
#include "priv.h"
#include "ids.h"
#define SECURITY_WIN32
#include <schnlsp.h> //for UNISP_NAME_A
#include <sspi.h> //for SCHANNEL.dll api -- to obtain encryption key size
#include <mluisupp.h>
#include <wininet.h> // INTERNET_MAX_URL_LENGTH
#define MAX_REG_VALUE 256
// Some Static strings that we use to read from the registry
#ifdef UNIX
#define VERSION "IEUNIX Version"
#define UNIX_IE_PRODUCT_ID TEXT("86139-999-2001594-12504")
#ifndef ux10
#define UNIX_IE_PRODUCT_FILE TEXT("%MWDEV%/ie/setup/sunos5/.iepid")
#else
#define UNIX_IE_PRODUCT_FILE TEXT("%MWDEV%/ie/setup/ux10/.iepid")
#endif
#endif
typedef PSecurityFunctionTable (APIENTRY *INITSECURITYINTERFACE_FN_A) (VOID);
// Returns the maximum cipher strength
DWORD GetCipherStrength()
{
DWORD dwKeySize = 0;
HINSTANCE hSecurity;
INITSECURITYINTERFACE_FN_A pfnInitSecurityInterfaceA;
PSecurityFunctionTable pSecFuncTable;
//
// Can't go directly to schannel on NT5. (Note that g_bRunningOnNT5OrHigher
// may not be initialized when fUseSChannel is initialized!)
//
static BOOL fUseSChannel = TRUE;
if (fUseSChannel && !g_bRunningOnNT5OrHigher)
{
//
// This is better for performance. Rather than call through
// SSPI, we go right to the DLL doing the work.
//
hSecurity = LoadLibrary("schannel");
}
else
{
//
// Use SSPI
//
if (g_bRunningOnNT)
{
hSecurity = LoadLibrary("security");
}
else
{
hSecurity = LoadLibrary("secur32");
}
}
if (hSecurity == NULL)
{
return 0;
}
//
// Get the SSPI dispatch table
//
pfnInitSecurityInterfaceA =
(INITSECURITYINTERFACE_FN_A)GetProcAddress(hSecurity, "InitSecurityInterfaceA");
if (pfnInitSecurityInterfaceA == NULL)
{
goto exit;
}
pSecFuncTable = (PSecurityFunctionTable)((*pfnInitSecurityInterfaceA)());
if (pSecFuncTable == NULL)
{
goto exit;
}
if (pSecFuncTable->AcquireCredentialsHandleA && pSecFuncTable->QueryCredentialsAttributesA)
{
TimeStamp tsExpiry;
CredHandle chCred;
SecPkgCred_CipherStrengths cs;
if (SEC_E_OK == (*pSecFuncTable->AcquireCredentialsHandleA)(NULL,
UNISP_NAME_A, // Package
SECPKG_CRED_OUTBOUND,
NULL,
NULL,
NULL,
NULL,
&chCred, // Handle
&tsExpiry ))
{
if (SEC_E_OK == (*pSecFuncTable->QueryCredentialsAttributesA)(&chCred, SECPKG_ATTR_CIPHER_STRENGTHS, &cs))
{
dwKeySize = cs.dwMaximumCipherStrength;
}
// Free the handle if we can
if (pSecFuncTable->FreeCredentialsHandle)
{
(*pSecFuncTable->FreeCredentialsHandle)(&chCred);
}
}
}
exit:
FreeLibrary(hSecurity);
if (dwKeySize == 0 && fUseSChannel)
{
// Failed, so retry using SSPI
fUseSChannel = FALSE;
dwKeySize = GetCipherStrength();
}
return dwKeySize;
}
BOOL SHAboutInfoA(LPSTR lpszInfo, DWORD cchSize)
{
HKEY hkey;
char szVersion[64];
char szUserName[MAX_REG_VALUE];
char szCompanyName[MAX_REG_VALUE];
char szKeySize[11];
char szProductId[MAX_REG_VALUE];
char szUpdateUrl[INTERNET_MAX_URL_LENGTH];
char szIEAKStr[MAX_REG_VALUE];
LPSTR lpszAboutKey;
DWORD dwKeySize = 0;
DWORD cb;
DWORD dwType;
BOOL fIEOrShell = TRUE;
lpszInfo[0] = '\0';
szKeySize[0] = '\0';
#ifndef UNIX
// Are we in the explorer or IE process?
fIEOrShell = GetModuleHandle("EXPLORER.EXE") || GetModuleHandle("IEXPLORE.EXE");
if (g_bRunningOnNT)
lpszAboutKey = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion";
else
#endif
lpszAboutKey = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion";
if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, lpszAboutKey, 0, KEY_READ, &hkey) == ERROR_SUCCESS)
{
// get the encription key size
dwKeySize = GetCipherStrength();
wsprintf(szKeySize, "~%d", dwKeySize);
// get the custom IEAK update url
// (always get from Windows\CurrentVersion because IEAK policy file must be platform
// independent
cb = sizeof(szUpdateUrl);
if(SHGetValueA(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion",
"IEAKUpdateUrl", &dwType, (LPBYTE)szUpdateUrl, &cb) != ERROR_SUCCESS)
szUpdateUrl[0] = '\0';
#ifndef UNIX
// Extra Whistler/IE6 code to get the VBL version info
{
char szVBLVersion[64];
char* pszBuildLabKey;
DWORD cbSize;
DWORD dwType;
if (g_bRunningOnNT)
{
pszBuildLabKey = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion";
}
else
{
pszBuildLabKey = "SOFTWARE\\Microsoft\\Internet Explorer";
}
cbSize = sizeof(szVBLVersion);
if ((SHGetValueA(HKEY_LOCAL_MACHINE,
pszBuildLabKey,
"BuildLab",
&dwType,
szVBLVersion,
&cbSize) == ERROR_SUCCESS) && (dwType == REG_SZ))
{
// Now szVBLVersion contains the VBL buildnumber in the format: "2204.reinerf.010700"
// Since we are only interested in the latter part, we remove the build # (first 4 digits)
memmove((void*)szVBLVersion, (void*)&szVBLVersion[4], (lstrlenA(szVBLVersion) + 1) * sizeof(char));
}
else
{
szVBLVersion[0] = '\0';
}
// get the Version number (version string is in the following format 5.00.xxxx.x)
szVersion[0] = '\0';
cb = sizeof(szVersion);
if (ERROR_SUCCESS == SHGetValueA(HKEY_LOCAL_MACHINE,
"SOFTWARE\\Microsoft\\Internet Explorer",
"Version", &dwType, (LPVOID)szVersion, &cb))
{
DWORD dwLen;
// if we have a szVBLVersion, tack it onto the end of the IE major/minor version string
if (*szVBLVersion)
{
lstrcatnA(szVersion, szVBLVersion, ARRAYSIZE(szVersion));
}
// added by pritobla on 9/1/98
// CustomizedVersion contains a 2-letter code that identifies what mode was used
// (CORP, ICP, ISP, etc.) in building this version IE using the IEAK.
dwLen = lstrlenA(szVersion);
cb = sizeof(szVersion) - (dwLen * sizeof(char));
SHGetValueA(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Internet Explorer",
"CustomizedVersion", &dwType, (LPVOID)&szVersion[dwLen], &cb);
}
}
#else
// Get the version details from ntverp.h / ieverp.h
sprintf(szVersion, "%s.%04d.%04d",VER_PRODUCTVERSION_STRING,
VER_PRODUCTBUILD,
VER_PRODUCTBUILD_QFE);
#endif // UNIX
if (!fIEOrShell)
{
// Not in the explorer or iexplore process so we are doing some side by side stuff so
// reflect this in the version string. Maybe we should get the version out of MSHTML
// but not sure since this still doesn't reflect IE4 or IE5 properly anyway.
MLLoadString(IDS_SIDEBYSIDE, szVersion, ARRAYSIZE(szVersion));
}
// get the custom IEAK branded help string
cb = sizeof(szIEAKStr);
if(RegQueryValueExA(hkey, "IEAKHelpString", 0, &dwType, (LPBYTE)szIEAKStr, &cb) != ERROR_SUCCESS)
szIEAKStr[0] = '\0';
// get the User name.
cb = sizeof(szUserName);
if(RegQueryValueExA(hkey, "RegisteredOwner", 0, &dwType, (LPBYTE)szUserName, &cb) != ERROR_SUCCESS)
szUserName[0] = '\0';
// get the Organization name.
cb = sizeof(szCompanyName);
if(RegQueryValueExA(hkey, "RegisteredOrganization", 0, &dwType, (LPBYTE)szCompanyName, &cb) != ERROR_SUCCESS)
szCompanyName[0] = '\0';
#ifndef UNIX
cb = sizeof(szProductId);
if (SHGetValueA(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Internet Explorer\\Registration", "ProductId", &dwType, (LPVOID)szProductId, &cb) != ERROR_SUCCESS)
{
szProductId[0] = '\0';
}
#else
HANDLE hPidFile;
char szPidFileName[MAX_PATH];
DWORD dwRead;
SHExpandEnvironmentStrings(UNIX_IE_PRODUCT_FILE, szPidFileName, MAX_PATH);
if ((hPidFile = CreateFileA(szPidFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL))
== INVALID_HANDLE_VALUE)
{
sprintf(szProductId, "%s", UNIX_IE_PRODUCT_ID);
}
else
{
ReadFile(hPidFile, (LPVOID)szProductId, 23, &dwRead, NULL);
szProductId[dwRead] = 0;
}
CloseHandle(hPidFile);
#endif
lstrcatn(lpszInfo, szVersion, cchSize);
lstrcatn(lpszInfo, "~", cchSize);
lstrcatn(lpszInfo, szUserName, cchSize);
lstrcatn(lpszInfo, "~", cchSize);
lstrcatn(lpszInfo, szCompanyName, cchSize);
lstrcatn(lpszInfo, szKeySize, cchSize);
lstrcatn(lpszInfo, "~", cchSize);
lstrcatn(lpszInfo, szProductId, cchSize);
lstrcatn(lpszInfo, "~", cchSize);
lstrcatn(lpszInfo, szUpdateUrl, cchSize);
lstrcatn(lpszInfo, "~", cchSize);
lstrcatn(lpszInfo, szIEAKStr, cchSize);
RegCloseKey(hkey);
}
else
return FALSE;
return TRUE;
}
BOOL SHAboutInfoW(LPWSTR lpszInfo, DWORD cchSize)
{
LPSTR lpszTmp;
BOOL bRet = FALSE;
lpszInfo[0] = L'\0';
if(NULL != (lpszTmp = (LPSTR)LocalAlloc(LPTR, cchSize)))
if(SHAboutInfoA(lpszTmp, cchSize))
if(MultiByteToWideChar(CP_ACP, 0, lpszTmp, -1, lpszInfo, cchSize) != 0)
bRet = TRUE;
if(lpszTmp)
LocalFree(lpszTmp);
return bRet;
}