NtGdiAddFontResource.c File Reference

#include "precomp.h"
#include <ndk/rtlfuncs.h>

Include dependency graph for NtGdiAddFontResource.c:

Go to the source code of this file.

Functions
INT APIENTRY	NtGdiAddFontResourceW (_In_reads_(cwc) WCHAR *pwszFiles, _In_ ULONG cwc, _In_ ULONG cFiles, _In_ FLONG f, _In_ DWORD dwPidTid, _In_opt_ DESIGNVECTOR *pdv)
void	Test_NtGdiAddFontResourceW ()
	START_TEST (NtGdiAddFontResource)

Function Documentation

NtGdiAddFontResourceW()

INT APIENTRY NtGdiAddFontResourceW	(	_In_reads_(cwc) WCHAR *	pwcFiles,
		_In_ ULONG	cwc,
		_In_ ULONG	cFiles,
		_In_ FLONG	fl,
		_In_ DWORD	dwPidTid,
		_In_opt_ DESIGNVECTOR *	pdv
	)

Functions

Definition at line 465 of file font.c.

{
    UNICODE_STRING SafeFileName;
    INT Ret;
 
    DBG_UNREFERENCED_PARAMETER(dwPidTid);
    DBG_UNREFERENCED_PARAMETER(pdv);
 
    DPRINT("NtGdiAddFontResourceW\n");
 
    /* cwc = Length + trailing zero. */
    if ((cwc <= 1) || (cwc > UNICODE_STRING_MAX_CHARS))
        return 0;
 
    SafeFileName.Length = (USHORT)((cwc - 1) * sizeof(WCHAR));
    SafeFileName.MaximumLength = SafeFileName.Length + sizeof(UNICODE_NULL);
    SafeFileName.Buffer = ExAllocatePoolWithTag(PagedPool,
                                                SafeFileName.MaximumLength,
                                                TAG_STRING);
    if (!SafeFileName.Buffer)
        return 0;
 
    _SEH2_TRY
    {
        ProbeForRead(pwcFiles, cwc * sizeof(WCHAR), sizeof(WCHAR));
 
        if (!IntCheckFontPathNames(pwcFiles, cFiles, cwc))
            return 0;
 
        RtlCopyMemory(SafeFileName.Buffer, pwcFiles, SafeFileName.Length);
    }
    _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
    {
        ExFreePoolWithTag(SafeFileName.Buffer, TAG_STRING);
        _SEH2_YIELD(return 0);
    }
    _SEH2_END;
 
    SafeFileName.Buffer[SafeFileName.Length / sizeof(WCHAR)] = UNICODE_NULL;
 
    Ret = IntGdiAddFontResourceEx(&SafeFileName, cFiles, fl, 0);
 
    ExFreePoolWithTag(SafeFileName.Buffer, TAG_STRING);
    return Ret;
}

Referenced by GdiAddFontResourceW(), and Test_NtGdiAddFontResourceW().

START_TEST()

START_TEST

(

NtGdiAddFontResource

)

Definition at line 96 of file NtGdiAddFontResource.c.

{
    Test_NtGdiAddFontResourceW();
}

Test_NtGdiAddFontResourceW()

void Test_NtGdiAddFontResourceW

(

)

Definition at line 22 of file NtGdiAddFontResource.c.

{
    WCHAR lpszFontPath[MAX_PATH];
    WCHAR lpszFontSearch[MAX_PATH];
 
    INT ret;
    UNICODE_STRING NtAbsPath;
    WIN32_FIND_DATAW FindFileData;
    HANDLE hFind;
    ULONG cwc;
 
    // Create "Font" folder Path
    GetWindowsDirectoryW(lpszFontPath, MAX_PATH);
    StringCbCatW(lpszFontPath, sizeof(lpszFontPath), L"\\Fonts\\");
 
    // Search first .ttf file in Fonts Path
    StringCbCopyW(lpszFontSearch, sizeof(lpszFontSearch), lpszFontPath);
    StringCbCatW(lpszFontSearch, sizeof(lpszFontSearch), L"*.ttf");
 
    hFind = FindFirstFileW(lpszFontSearch, &FindFileData);
 
    if (hFind == INVALID_HANDLE_VALUE)
    {
        skip("Unable to find fonts in Font directory!\n");
        return;
    }
 
    // File found. Create FontPath to File.
    StringCbCatW(lpszFontPath, sizeof(lpszFontPath), FindFileData.cFileName);
 
    // Fail due "cwc" being zero.
    SetLastError(0xdeaddead);
    RtlInitUnicodeString(&NtAbsPath, NULL);
    RtlDosPathNameToNtPathName_U(lpszFontPath, &NtAbsPath, NULL, NULL);
    cwc = 0;
    ret =  NtGdiAddFontResourceW(NtAbsPath.Buffer, cwc, 1, 0, 0, 0);
 
    ok(ret == 0, "Expected 0 files added. Added: %d\n", ret);
    ok(GetLastError() == 0xdeaddead, "Expected 0xdeaddead. Obtained: 0x%lx\n", GetLastError());
 
    RtlFreeUnicodeString(&NtAbsPath);
 
    // "cwc" must count the null terminator. Otherwise fails.
    SetLastError(0xdeaddead);
    RtlInitUnicodeString(&NtAbsPath, NULL);
    RtlDosPathNameToNtPathName_U(lpszFontPath, &NtAbsPath, NULL, NULL);
    cwc = NtAbsPath.Length / sizeof(WCHAR);
    ret =  NtGdiAddFontResourceW(NtAbsPath.Buffer, cwc, 1, 0, 0, 0);
 
    ok(ret == 0, "Expected 0 files added. Added: %d\n", ret);
    ok(GetLastError() == 0xdeaddead, "Expected 0xdeaddead. Obtained: 0x%lx\n", GetLastError());
 
    RtlFreeUnicodeString(&NtAbsPath);
 
    // Correct "cwc" value.
    SetLastError(0xdeaddead);
    RtlInitUnicodeString(&NtAbsPath, NULL);
    RtlDosPathNameToNtPathName_U(lpszFontPath, &NtAbsPath, NULL, NULL);
    cwc = NtAbsPath.Length / sizeof(WCHAR) + 1;
    ret =  NtGdiAddFontResourceW(NtAbsPath.Buffer, cwc, 1, 0, 0, 0);
 
    ok(ret == 1, "Expected 1 files added. Added: %d\n", ret);
    ok(GetLastError() == 0xdeaddead, "Expected 0xdeaddead. Obtained: 0x%lx\n", GetLastError());
 
    RtlFreeUnicodeString(&NtAbsPath);
 
    // Test an invalid pointer.
    SetLastError(0xdeadbeef);
    ret =  NtGdiAddFontResourceW((PVOID)-4, 123, 1, 0, 0, NULL);
 
    ok(ret == 0, "Expected 0 files added. Added: %d\n", ret);
    ok(GetLastError() == 0xdeadbeef, "Expected 0xdeadbeef. Obtained: 0x%lx\n", GetLastError());
}

Referenced by START_TEST().