Source code of Windows XP (NT5)
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412 lines
11 KiB

#include "acBrowser.h"
#include "..\acFileAttr\acFileAttr.h"
typedef struct tagKEYHEADER{
DWORD Size;
DWORD MsgId;
DWORD AppType;
} KEYHEADER, *PKEYHEADER;
char g_szData[2048];
VOID
PrintHeader(
KEYHEADER* pheader,
char* pszAppName,
char* pszShimData)
{
char* pszOut = g_szData;
lstrcpy(pszOut, "Application state: ");
switch (pheader->AppType & APPTYPE_TYPE_MASK) {
case APPTYPE_INC_NOBLOCK:
lstrcat(pszOut, "Incompatible - no hard block\r\n");
break;
case APPTYPE_INC_HARDBLOCK:
lstrcat(pszOut, "Incompatible - hard block\r\n");
break;
case APPTYPE_MINORPROBLEM:
lstrcat(pszOut, "Minor problems\r\n");
break;
case APPTYPE_REINSTALL:
lstrcat(pszOut, "Reinstall\r\n");
break;
case APPTYPE_VERSION:
lstrcat(pszOut, "Version substitute\r\n");
break;
case APPTYPE_SHIM:
lstrcat(pszOut, "Shim\r\n");
break;
default:
lstrcat(pszOut, "AppsHelp\r\n");
break;
}
pszOut = g_szData + lstrlen(g_szData);
if (pszShimData == NULL) {
wsprintf(pszOut, "Message ID: %d\r\n\r\n", pheader->MsgId);
} else {
wsprintf(pszOut, "Shim fix: %s\r\n\r\n", pszShimData);
}
pszOut = g_szData + lstrlen(g_szData);
wsprintf(pszOut, "Attributes for %s:\r\n", pszAppName);
}
#define MAX_EXE_NAME 64
#define MAX_VALUE_LENGTH 64 // in most cases this is a number but
// it can be a string as well
#define MAX_BLOB_SIZE 2048
BYTE g_data[MAX_BLOB_SIZE];
BOOL
EnumShimmedApps_Win2000(
PFNADDSHIM pfnAddShim,
BOOL bOnlyShims)
{
LONG status;
HKEY hkey, hkeyApp;
DWORD cbSize;
DWORD cbData;
DWORD cbShimData;
FILETIME ft;
DWORD dwType;
char szAppName[MAX_EXE_NAME];
char szValueName[MAX_VALUE_LENGTH];
char szShimValueName[128];
char szShimData[256];
BOOL bEnabled;
DWORD dwValue;
KEYHEADER header;
status = RegOpenKey(HKEY_LOCAL_MACHINE,
"System\\CurrentControlSet\\Control\\Session Manager\\AppCompatibility",
&hkey);
if (status != ERROR_SUCCESS) {
LogMsg("Failed to open AppCompatibility registry key\n");
return FALSE;
}
// loop through all the binaries listed under the AppCompatibility key
for (dwValue = 0; ; dwValue++) {
DWORD dwV;
// we'll only read binary names that are less then MAX_EXE_NAME
// in size.
cbSize = MAX_EXE_NAME;
status = RegEnumKeyEx(
hkey,
dwValue,
szAppName,
&cbSize,
NULL,
NULL,
NULL,
&ft);
// get out if no more entries
if (status != ERROR_SUCCESS) {
break;
}
// get the handle to the registry key for this app
status = RegOpenKey(hkey,
szAppName,
&hkeyApp);
// this should not fail but let's be cautious
if (status != ERROR_SUCCESS) {
LogMsg("Failed to open reg key for '%s'\n", szAppName);
continue;
}
// loop through all the shims and AppsHelp entries for the
// current app.
for (dwV = 0; ; dwV++) {
char* pszData;
cbSize = MAX_VALUE_LENGTH;
cbData = MAX_BLOB_SIZE;
cbShimData = 256;
status = RegEnumValue(
hkeyApp,
dwV,
szValueName,
&cbSize,
NULL,
&dwType,
(LPBYTE)&g_data,
&cbData);
if (status != ERROR_SUCCESS) {
break;
}
// we're only interested in the binary values
if (dwType != REG_BINARY) {
continue;
}
CopyMemory(&header, g_data, sizeof(KEYHEADER));
// it must me a valid blob
if (header.Size != sizeof(KEYHEADER)) {
LogMsg("Invalid blob\n");
continue;
}
bEnabled = TRUE;
// now let's look for an enabled shim entry
wsprintf(szShimValueName, "DllPatch-%s", szValueName);
status = RegQueryValueEx(
hkeyApp,
szShimValueName,
NULL,
&dwType,
(LPBYTE)szShimData,
&cbShimData);
if (status != ERROR_SUCCESS) {
// how about a disabled shim entry
wsprintf(szShimValueName, "-DllPatch-%s", szValueName);
status = RegQueryValueEx(
hkeyApp,
szShimValueName,
NULL,
&dwType,
(LPBYTE)szShimData,
&cbShimData);
if (status != ERROR_SUCCESS) {
// this is not a shim. If only shim entries are
// requested go to the next entry.
if (bOnlyShims) {
continue;
}
// This is an AppsHelp entry.
PrintHeader(&header, szAppName, NULL);
pszData = g_szData + lstrlen(g_szData);
if (BlobToString(g_data + sizeof(KEYHEADER),
cbData - sizeof(KEYHEADER) - sizeof(DWORD),
pszData)) {
(*pfnAddShim)(szAppName, szValueName, g_szData, TRUE, FALSE);
} else {
LogMsg("Failed to dump blob for AppsHelp entry: app '%s' entry '%s'\n",
szAppName, szValueName);
}
continue;
}
bEnabled = FALSE;
}
// This is a shim.
PrintHeader(&header, szAppName, szShimData);
pszData = g_szData + lstrlen(g_szData);
if (BlobToString(g_data + sizeof(KEYHEADER),
cbData - sizeof(KEYHEADER) - sizeof(DWORD),
pszData)) {
(*pfnAddShim)(szAppName, szValueName, g_szData, bEnabled, TRUE);
} else {
LogMsg("Failed to dump blob for shim entry: app '%s' entry '%s'\n",
szAppName, szValueName);
}
}
RegCloseKey(hkeyApp);
}
RegCloseKey(hkey);
return TRUE;
}
BOOL
EnableShim_Win2000(
char* pszApp,
char* pszShim)
{
LONG status;
HKEY hkey;
char szAppKey[128];
char szShimValueName[128];
char szData[256];
DWORD cbSize, dwType;
BOOL bRet = FALSE;
wsprintf(szAppKey, "%s\\%s",
"System\\CurrentControlSet\\Control\\Session Manager\\AppCompatibility",
pszApp);
status = RegOpenKey(HKEY_LOCAL_MACHINE,
szAppKey,
&hkey);
if (status != ERROR_SUCCESS) {
LogMsg("Failed to open registry key %s\n", szAppKey);
return FALSE;
}
wsprintf(szShimValueName, "-DllPatch-%s", pszShim);
cbSize = 256;
status = RegQueryValueEx(hkey,
szShimValueName,
NULL,
&dwType,
(LPBYTE)szData,
&cbSize);
if (status != ERROR_SUCCESS || dwType != REG_SZ || cbSize >= 256) {
LogMsg("Error reading key %s\n", szShimValueName);
goto Cleanup;
}
status = RegDeleteValue(hkey, szShimValueName);
if (status != ERROR_SUCCESS) {
LogMsg("Couldn't delete key %s\n", szShimValueName);
goto Cleanup;
}
wsprintf(szShimValueName, "DllPatch-%s", pszShim);
status = RegSetValueEx(hkey,
szShimValueName,
0,
REG_SZ,
(LPBYTE)szData,
cbSize);
if (status != ERROR_SUCCESS) {
LogMsg("Couldn't set value key %s\n", szShimValueName);
goto Cleanup;
}
bRet = TRUE;
Cleanup:
RegCloseKey(hkey);
return bRet;
}
BOOL
DisableShim_Win2000(
char* pszApp,
char* pszShim)
{
LONG status;
HKEY hkey;
char szAppKey[128];
char szShimValueName[128];
char szData[256];
DWORD cbSize, dwType;
BOOL bRet = FALSE;
wsprintf(szAppKey, "%s\\%s",
"System\\CurrentControlSet\\Control\\Session Manager\\AppCompatibility",
pszApp);
status = RegOpenKey(HKEY_LOCAL_MACHINE,
szAppKey,
&hkey);
if (status != ERROR_SUCCESS) {
LogMsg("Failed to open registry key %s\n", szAppKey);
return FALSE;
}
wsprintf(szShimValueName, "DllPatch-%s", pszShim);
cbSize = 256;
status = RegQueryValueEx(hkey,
szShimValueName,
NULL,
&dwType,
(LPBYTE)szData,
&cbSize);
if (status != ERROR_SUCCESS || dwType != REG_SZ || cbSize >= 256) {
LogMsg("Error reading key %s\n", szShimValueName);
goto Cleanup;
}
status = RegDeleteValue(hkey, szShimValueName);
if (status != ERROR_SUCCESS) {
LogMsg("Couldn't delete key %s\n", szShimValueName);
goto Cleanup;
}
wsprintf(szShimValueName, "-DllPatch-%s", pszShim);
status = RegSetValueEx(hkey,
szShimValueName,
0,
REG_SZ,
(LPBYTE)szData,
cbSize);
if (status != ERROR_SUCCESS) {
LogMsg("Couldn't set value key %s\n", szShimValueName);
goto Cleanup;
}
bRet = TRUE;
Cleanup:
RegCloseKey(hkey);
return bRet;
}
BOOL
DeleteShim_Win2000(
char* pszApp,
char* pszShim)
{
LONG status;
HKEY hkey;
char szAppKey[128];
char szShimValueName[128];
wsprintf(szAppKey, "%s\\%s",
"System\\CurrentControlSet\\Control\\Session Manager\\AppCompatibility",
pszApp);
status = RegOpenKey(HKEY_LOCAL_MACHINE,
szAppKey,
&hkey);
if (status != ERROR_SUCCESS) {
LogMsg("Failed to open registry key %s\n", szAppKey);
return FALSE;
}
wsprintf(szShimValueName, "DllPatch-%s", pszShim);
status = RegDeleteValue(hkey, szShimValueName);
wsprintf(szShimValueName, "-DllPatch-%s", pszShim);
status = RegDeleteValue(hkey, szShimValueName);
RegCloseKey(hkey);
return TRUE;
}