729 lines
14 KiB
C
729 lines
14 KiB
C
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/*++
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Copyright (c) 1997 Microsoft Corporation
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Module Name:
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logapi.c
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Abstract:
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Public exposure of an error logging API, based on windows\setup\setuplog.
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Author:
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Jim Schmidt (jimschm) 28-Apr-1997
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Revision History:
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jimschm 16-Dec-1998 Added UseCountCs (duh!!)
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--*/
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#include "precomp.h"
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#include <setuplog.h>
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SETUPLOG_CONTEXT LogContext;
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INT UseCount;
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#define MAX_STRING_RESOURCE 0x08000
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//
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// NOTE: Watch the case. We expose an API named SetupLogError, which is different than
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// the lib-based SetuplogError function.
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//
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LPSTR
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pUnicodeToAnsiForDisplay (
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PCWSTR UnicodeStr
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)
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{
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INT Len;
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LPSTR AnsiBuffer;
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CHAR CodePage[32];
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DWORD rc;
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//
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// Allocate buffer to be freed by caller
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//
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Len = (lstrlenW (UnicodeStr) + 1) * sizeof (WCHAR);
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AnsiBuffer = (LPSTR) MyMalloc (Len);
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if (!AnsiBuffer) {
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SetLastError (ERROR_NOT_ENOUGH_MEMORY);
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return NULL;
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}
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//
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// Convert to UNICODE based on thread's Locale; convert assuming string
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// is for display purposes
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//
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if (!GetLocaleInfoA (GetThreadLocale(), LOCALE_IDEFAULTANSICODEPAGE, CodePage, 32)) {
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MyFree (AnsiBuffer);
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return NULL;
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}
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rc = WideCharToMultiByte (
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atoi (CodePage),
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WC_COMPOSITECHECK|WC_DISCARDNS,
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UnicodeStr,
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-1,
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AnsiBuffer,
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Len,
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NULL,
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NULL
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);
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if (rc == 0) {
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MyFree (AnsiBuffer);
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return NULL;
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}
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return AnsiBuffer;
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}
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PWSTR
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pAnsiToUnicodeForDisplay (
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LPCSTR AnsiStr
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)
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{
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INT Len;
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LPWSTR UnicodeBuffer;
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CHAR CodePage[32];
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DWORD rc;
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//
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// Allocate buffer to be freed by caller
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//
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Len = (lstrlenA (AnsiStr) + 1) * sizeof (WCHAR);
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UnicodeBuffer = (LPWSTR) MyMalloc (Len);
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if (!UnicodeBuffer) {
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SetLastError (ERROR_NOT_ENOUGH_MEMORY);
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return NULL;
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}
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//
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// Convert to UNICODE based on thread's Locale
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//
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if (!GetLocaleInfoA (GetThreadLocale(), LOCALE_IDEFAULTANSICODEPAGE, CodePage, 32)) {
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MyFree (UnicodeBuffer);
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return NULL;
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}
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rc = MultiByteToWideChar (
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atoi (CodePage),
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MB_USEGLYPHCHARS,
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AnsiStr,
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-1,
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UnicodeBuffer,
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Len
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);
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if (rc == 0) {
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MyFree (UnicodeBuffer);
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return NULL;
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}
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return UnicodeBuffer;
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}
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PVOID
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pOpenFileCallback (
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IN LPCTSTR Filename,
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IN BOOL WipeLogFile
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)
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/*++
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Routine Description:
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Opens the log and optionally overwrites an existing copy.
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Arguments:
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FileName - Specifies the name of the file to open or create
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WipeLogFile - TRUE if an existing log should be overwritten, FALSE if
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it should be appended
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Return Value:
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Pointer to the file handle.
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--*/
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{
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TCHAR CompleteFilename[MAX_PATH];
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HANDLE hFile;
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//
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// Form the pathname of the logfile. (uses real Windows directory)
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//
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lstrcpyn(CompleteFilename,WindowsDirectory,SIZECHARS(CompleteFilename));
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if (!pSetupConcatenatePaths (CompleteFilename, Filename, SIZECHARS(CompleteFilename), NULL)) {
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return NULL;
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}
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//
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// If we're wiping the logfile clean, attempt to delete
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// what's there.
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//
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if(WipeLogFile) {
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SetFileAttributes (CompleteFilename, FILE_ATTRIBUTE_NORMAL);
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DeleteFile (CompleteFilename);
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}
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//
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// Open existing file or create a new one.
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//
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hFile = CreateFile (
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CompleteFilename,
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL,
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OPEN_ALWAYS,
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FILE_ATTRIBUTE_NORMAL,
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NULL
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);
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return (PVOID)hFile;
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}
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static
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BOOL
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pWriteFile (
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IN PVOID LogFile,
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IN LPCTSTR Buffer
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)
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/*++
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Routine Description:
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Writes an entry to the Setup Error Log by converting string to ANSI and
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calling WriteFile. The message is appended to the log.
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Arguments:
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LogFile - The handle to an open log file
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Buffer - The UNICODE message to write
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Return Value:
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Boolean indicating whether the operation was successful. Error code is set
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to a Win32 error code if the return value is FALSE.
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--*/
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{
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PCSTR AnsiBuffer;
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BOOL Status;
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DWORD DontCare;
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if (0xffffffff == SetFilePointer (LogFile, 0, NULL, FILE_END)) {
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return FALSE;
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}
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#ifdef UNICODE
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//
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// Convert to ANSI for file output
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//
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if (AnsiBuffer = pUnicodeToAnsiForDisplay (Buffer)) {
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Status = WriteFile (
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LogFile,
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AnsiBuffer,
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lstrlenA (AnsiBuffer),
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&DontCare,
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NULL
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);
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MyFree (AnsiBuffer);
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} else {
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Status = FALSE;
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}
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#else
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Status = WriteFile (
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LogFile,
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Buffer,
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lstrlen (Buffer),
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&DontCare,
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NULL
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);
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#endif
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if (Status) {
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FlushFileBuffers (LogFile);
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}
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return Status;
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}
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static
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LPTSTR
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pFormatLogMessage (
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IN LPCTSTR MessageString,
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IN UINT MessageId, OPTIONAL
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IN va_list * ArgumentList
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)
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/*++
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Routine Description:
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Format a message string using a message string and caller-supplied
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arguments.
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This routine supports only MessageIds that are Win32 error codes. It
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does not support messages for string resources.
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Arguments:
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MessageString - Supplies the message text. For logapi.c, this should
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always be non-NULL.
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MessageId - Supplies a Win32 error code, or 0 if MessageString is to be
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used.
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ArgumentList - supplies arguments to be inserted in the message text.
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Return Value:
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Pointer to buffer containing formatted message. If the message was not found
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or some error occurred retrieving it, this buffer will bne empty.
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Caller can free the buffer with MyFree().
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If NULL is returned, out of memory.
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--*/
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{
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DWORD d;
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LPTSTR Buffer;
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LPTSTR Message;
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TCHAR ModuleName[MAX_PATH];
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TCHAR ErrorNumber[24];
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LPTSTR Args[2];
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if (MessageString > (LPCTSTR) SETUPLOG_USE_MESSAGEID) {
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d = FormatMessage (
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FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_STRING,
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MessageString,
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0,
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0,
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(LPTSTR) &Buffer,
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0,
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ArgumentList
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);
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} else {
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d = FormatMessage (
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FORMAT_MESSAGE_ALLOCATE_BUFFER |
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((MessageId < MSG_FIRST) ? FORMAT_MESSAGE_FROM_SYSTEM : FORMAT_MESSAGE_FROM_HMODULE),
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(PVOID) GetModuleHandle (NULL),
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MessageId,
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MAKELANGID (LANG_NEUTRAL,SUBLANG_NEUTRAL),
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(LPTSTR) &Buffer,
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0,
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ArgumentList
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);
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}
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if(!d) {
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//
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// Give up.
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//
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return NULL;
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}
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//
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// Make duplicate using our memory system so user can free with MyFree().
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//
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Message = DuplicateString (Buffer);
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LocalFree ((HLOCAL) Buffer);
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return Message;
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}
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static
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BOOL
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pAcquireMutex (
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IN PVOID Mutex
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)
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/*++
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Routine Description:
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Waits on the log mutex for a max of 1 second, and returns TRUE if the mutex
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was claimed, or FALSE if the claim timed out.
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Arguments:
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Mutex - specifies which mutex to acquire.
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Return Value:
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TRUE if the mutex was claimed, or FALSE if the claim timed out.
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--*/
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{
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DWORD rc;
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if (!Mutex) {
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SetLastError (ERROR_INVALID_HANDLE);
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return FALSE;
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}
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// Wait a max of 1 second for the mutex
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rc = WaitForSingleObject (Mutex, 1000);
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if (rc != WAIT_OBJECT_0) {
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SetLastError (ERROR_EXCL_SEM_ALREADY_OWNED);
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return FALSE;
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}
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return TRUE;
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}
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BOOL
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WINAPI
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SetupOpenLog (
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BOOL Erase
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)
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|
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/*++
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Routine Description:
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Opens the log for processing. Must be called before SetupLogError is called.
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A use count is maintained so a single process can call SetupOpenLog and
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SetupCloseLog from multiple threads.
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Arguments:
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Erase - TRUE to erase an existing log, or FALSE to append to an existing log
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Return Value:
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Boolean indicating whether the operation was successful. Error code is set
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to a Win32 error code if the return value is FALSE.
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--*/
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{
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BOOL b = TRUE;
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INT i;
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DWORD rc;
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BOOL locked = FALSE;
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__try {
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EnterCriticalSection (&LogUseCountCs);
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locked = TRUE;
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//
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// Perform initialization of log APIs
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//
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if (!UseCount) {
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LogContext.OpenFile = (PSPLOG_OPENFILE_ROUTINE) pOpenFileCallback;
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LogContext.CloseFile = CloseHandle;
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LogContext.AllocMem = pSetupMalloc;
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LogContext.FreeMem = pSetupFree;
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LogContext.Format = (PSPLOG_FORMAT_ROUTINE) pFormatLogMessage;
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|
|
LogContext.Write = (PSPLOG_WRITE_ROUTINE) pWriteFile;
|
||
|
|
LogContext.Lock = pAcquireMutex;
|
||
|
|
LogContext.Unlock = ReleaseMutex;
|
||
|
|
|
||
|
|
LogContext.Mutex = CreateMutexW(NULL,FALSE,L"SetuplogMutex");
|
||
|
|
|
||
|
|
for (i = 0 ; i < LogSevMaximum ; i++) {
|
||
|
|
LogContext.SeverityDescriptions[i] = MyLoadString (IDS_LOGSEVINFORMATION + i);
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// We don't want to allow anyone to erase the existing log, so we just
|
||
|
|
// ignore the value of Erase and always append to the log.
|
||
|
|
//
|
||
|
|
b = SetuplogInitialize (&LogContext, FALSE);
|
||
|
|
rc = GetLastError();
|
||
|
|
|
||
|
|
} else {
|
||
|
|
rc = ERROR_ALREADY_INITIALIZED;
|
||
|
|
}
|
||
|
|
|
||
|
|
UseCount++;
|
||
|
|
}
|
||
|
|
__finally {
|
||
|
|
//
|
||
|
|
// Clean up and exit
|
||
|
|
//
|
||
|
|
|
||
|
|
if (!b) {
|
||
|
|
SetupCloseLog();
|
||
|
|
}
|
||
|
|
|
||
|
|
SetLastError (rc);
|
||
|
|
if(locked) {
|
||
|
|
LeaveCriticalSection (&LogUseCountCs);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return b;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
VOID
|
||
|
|
WINAPI
|
||
|
|
SetupCloseLog (
|
||
|
|
VOID
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Cleans up all resources associated with the log
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
none
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
none
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
|
||
|
|
{
|
||
|
|
INT i;
|
||
|
|
BOOL locked=FALSE;
|
||
|
|
|
||
|
|
|
||
|
|
__try {
|
||
|
|
EnterCriticalSection (&LogUseCountCs);
|
||
|
|
locked = TRUE;
|
||
|
|
if (!UseCount) {
|
||
|
|
__leave;
|
||
|
|
}
|
||
|
|
|
||
|
|
UseCount--;
|
||
|
|
if (!UseCount) {
|
||
|
|
if(LogContext.Mutex) {
|
||
|
|
CloseHandle(LogContext.Mutex);
|
||
|
|
LogContext.Mutex = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i=0; i<LogSevMaximum; i++) {
|
||
|
|
if (LogContext.SeverityDescriptions[i]) {
|
||
|
|
MyFree (LogContext.SeverityDescriptions[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
SetuplogTerminate();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
__finally {
|
||
|
|
if(locked) {
|
||
|
|
LeaveCriticalSection (&LogUseCountCs);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
WINAPI
|
||
|
|
SetupLogErrorA (
|
||
|
|
IN PCSTR MessageString,
|
||
|
|
IN LogSeverity Severity
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Writes an entry to the Setup Error Log. If we're being compiled UNICODE,
|
||
|
|
we convert the MessageString to UNICODE and call SetupLogErrorW. If we're
|
||
|
|
being compiled ANSI, we call the log API directly.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
MessageString - Pointer to a buffer containing unformatted message text
|
||
|
|
|
||
|
|
Severity - Severity of the error:
|
||
|
|
|
||
|
|
LogSevInformation
|
||
|
|
LogSevWarning
|
||
|
|
LogSevError
|
||
|
|
LogSevFatalError
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
Boolean indicating whether the operation was successful. Error code is set
|
||
|
|
to a Win32 error code if the return value is FALSE.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
INT Len;
|
||
|
|
PWSTR UnicodeBuffer;
|
||
|
|
BOOL b = FALSE;
|
||
|
|
CHAR CodePage[32];
|
||
|
|
DWORD rc;
|
||
|
|
|
||
|
|
__try {
|
||
|
|
|
||
|
|
if (!UseCount) {
|
||
|
|
rc = ERROR_FILE_INVALID;
|
||
|
|
} else {
|
||
|
|
|
||
|
|
#ifdef UNICODE
|
||
|
|
UnicodeBuffer = pAnsiToUnicodeForDisplay (MessageString);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Call UNICODE version of the log API, preserve error code
|
||
|
|
//
|
||
|
|
|
||
|
|
if (UnicodeBuffer) {
|
||
|
|
b = SetupLogErrorW (UnicodeBuffer, Severity);
|
||
|
|
rc = GetLastError();
|
||
|
|
MyFree (UnicodeBuffer);
|
||
|
|
} else {
|
||
|
|
rc = GetLastError();
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
//
|
||
|
|
// ANSI version -- call SetuplogError directly
|
||
|
|
//
|
||
|
|
|
||
|
|
b = SetuplogError (Severity, "%1", 0, MessageString, 0, 0);
|
||
|
|
rc = GetLastError();
|
||
|
|
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
__except (TRUE) {
|
||
|
|
//
|
||
|
|
// If caller passes in bogus pointer, fail with invalid parameter error
|
||
|
|
//
|
||
|
|
|
||
|
|
rc = ERROR_INVALID_PARAMETER;
|
||
|
|
b = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
SetLastError(rc);
|
||
|
|
return b;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
WINAPI
|
||
|
|
SetupLogErrorW (
|
||
|
|
IN PCWSTR MessageString,
|
||
|
|
IN LogSeverity Severity
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Writes an entry to the Setup Error Log. If compiled with UNICODE, we call the
|
||
|
|
SetuplogError function directly. If compiled with ANSI, we convert to ANSI
|
||
|
|
and call SetupLogErrorA.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
MessageString - Pointer to a buffer containing unformatted message text
|
||
|
|
|
||
|
|
Severity - Severity of the error:
|
||
|
|
|
||
|
|
LogSevInformation
|
||
|
|
LogSevWarning
|
||
|
|
LogSevError
|
||
|
|
LogSevFatalError
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
Boolean indicating whether the operation was successful. Error code is set
|
||
|
|
to a Win32 error code if the return value is FALSE.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
BOOL b = FALSE;
|
||
|
|
PCSTR AnsiBuffer;
|
||
|
|
DWORD rc;
|
||
|
|
|
||
|
|
__try {
|
||
|
|
|
||
|
|
if (!UseCount) {
|
||
|
|
rc = ERROR_FILE_INVALID;
|
||
|
|
} else {
|
||
|
|
|
||
|
|
#ifdef UNICODE
|
||
|
|
//
|
||
|
|
// UNICODE version: Call SetuplogError directly
|
||
|
|
//
|
||
|
|
|
||
|
|
// Log the error -- we always link to a UNICODE SetuplogError, despite the TCHAR header file
|
||
|
|
b = SetuplogError (Severity, L"%1", 0, MessageString, 0, 0);
|
||
|
|
rc = GetLastError();
|
||
|
|
|
||
|
|
#else
|
||
|
|
//
|
||
|
|
// ANSI version: Convert down to ANSI, then call SetupLogErrorA
|
||
|
|
//
|
||
|
|
|
||
|
|
AnsiBuffer = pUnicodeToAnsiForDisplay (MessageString);
|
||
|
|
|
||
|
|
if (AnsiBuffer) {
|
||
|
|
b = SetupLogErrorA (AnsiBuffer, Severity);
|
||
|
|
rc = GetLastError();
|
||
|
|
MyFree (AnsiBuffer);
|
||
|
|
} else {
|
||
|
|
rc = GetLastError();
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
__except (TRUE) {
|
||
|
|
rc = ERROR_INVALID_PARAMETER;
|
||
|
|
b = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
SetLastError(rc);
|
||
|
|
return b;
|
||
|
|
}
|
||
|
|
|
||
|
|
|