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[CONCFG] Rewrite the InitTTFontCache() registry enumeration loop.

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Hermès Bélusca-Maïto 2022-01-29 19:28:54 +01:00
parent 2a5536c540
commit 3b76aa5d19
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1 changed files with 34 additions and 31 deletions
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65
win32ss/user/winsrv/concfg/font.c
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@ -399,51 +399,54 @@ IsValidConsoleFont(
VOID VOID
InitTTFontCache(VOID) InitTTFontCache(VOID)
{ {
BOOLEAN Success; LRESULT lResult;
HKEY hKeyTTFonts; // hKey; HKEY hKey;
DWORD dwNumValues = 0; DWORD dwIndex, dwType;
DWORD dwIndex;
DWORD dwType;
WCHAR szValueName[MAX_PATH]; WCHAR szValueName[MAX_PATH];
DWORD dwValueName; DWORD cchValueName;
WCHAR szValue[LF_FACESIZE] = L""; WCHAR szValue[LF_FACESIZE] = L"";
DWORD dwValue; DWORD cbValue;
PTT_FONT_ENTRY FontEntry;
PWCHAR pszNext = NULL;
UINT CodePage; UINT CodePage;
PTT_FONT_ENTRY FontEntry;
PWCHAR pszNext;
if (!IsListEmpty(&TTFontCache)) if (!IsListEmpty(&TTFontCache))
return; return;
// InitializeListHead(&TTFontCache); // InitializeListHead(&TTFontCache);
/* Open the key */ /* Open the Console\TrueTypeFont key */
// "\\Registry\\Machine\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Console\\TrueTypeFont" // "\\Registry\\Machine\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Console\\TrueTypeFont"
Success = (RegOpenKeyExW(HKEY_LOCAL_MACHINE, if (RegOpenKeyExW(HKEY_LOCAL_MACHINE,
L"Software\\Microsoft\\Windows NT\\CurrentVersion\\Console\\TrueTypeFont", L"Software\\Microsoft\\Windows NT\\CurrentVersion\\Console\\TrueTypeFont",
0, 0,
KEY_READ, KEY_QUERY_VALUE,
&hKeyTTFonts) == ERROR_SUCCESS); &hKey) != ERROR_SUCCESS)
if (!Success)
return;
/* Enumerate each value */
if (RegQueryInfoKeyW(hKeyTTFonts, NULL, NULL, NULL, NULL, NULL, NULL,
&dwNumValues, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
{ {
DPRINT("ConCfgReadUserSettings: RegQueryInfoKeyW failed\n");
RegCloseKey(hKeyTTFonts);
return; return;
} }
for (dwIndex = 0; dwIndex < dwNumValues; dwIndex++) /* Enumerate all the available TrueType console fonts */
for (dwIndex = 0, cchValueName = ARRAYSIZE(szValueName),
cbValue = sizeof(szValue);
(lResult = RegEnumValueW(hKey, dwIndex,
szValueName, &cchValueName,
NULL, &dwType,
(PBYTE)szValue, &cbValue)) != ERROR_NO_MORE_ITEMS;
++dwIndex, cchValueName = ARRAYSIZE(szValueName),
cbValue = sizeof(szValue))
{ {
dwValue = sizeof(szValue); /* Ignore if we failed for another reason, e.g. because
dwValueName = ARRAYSIZE(szValueName); * the value name is too long (and thus, invalid). */
if (RegEnumValueW(hKeyTTFonts, dwIndex, szValueName, &dwValueName, NULL, &dwType, (BYTE*)szValue, &dwValue) != ERROR_SUCCESS) if (lResult != ERROR_SUCCESS)
{
DPRINT1("InitTTFontCache: RegEnumValueW failed, continuing...\n");
continue; continue;
}
/* Validate the value name (exclude the unnamed value) */
if (!cchValueName || (*szValueName == UNICODE_NULL))
continue;
/* Too large value names have already been handled with ERROR_MORE_DATA */
ASSERT((cchValueName < ARRAYSIZE(szValueName)) &&
(szValueName[cchValueName] == UNICODE_NULL));
/* Only (multi-)string values are supported */ /* Only (multi-)string values are supported */
if ((dwType != REG_SZ) && (dwType != REG_MULTI_SZ)) if ((dwType != REG_SZ) && (dwType != REG_MULTI_SZ))
continue; continue;
@ -502,7 +505,7 @@ InitTTFontCache(VOID)
} }
/* Close the key and quit */ /* Close the key and quit */
RegCloseKey(hKeyTTFonts); RegCloseKey(hKey);
} }
VOID VOID