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Diffstat (limited to 'lib/win32/emu.cpp')
-rw-r--r--lib/win32/emu.cpp287
1 files changed, 197 insertions, 90 deletions
diff --git a/lib/win32/emu.cpp b/lib/win32/emu.cpp
index ef237671..1f6392d5 100644
--- a/lib/win32/emu.cpp
+++ b/lib/win32/emu.cpp
@@ -32,8 +32,9 @@ bool EnableBackupRights()
if(!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES,
&hToken))
{
+ winerrno = GetLastError();
::syslog(LOG_ERR, "Failed to open process token: %s",
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
return false;
}
@@ -45,8 +46,9 @@ bool EnableBackupRights()
SE_BACKUP_NAME, //the name of the privilege
&( token_priv.Privileges[0].Luid ))) //result
{
+ winerrno = GetLastError();
::syslog(LOG_ERR, "Failed to lookup backup privilege: %s",
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
CloseHandle(hToken);
return false;
}
@@ -68,8 +70,9 @@ bool EnableBackupRights()
//this function is a little tricky - if we were adjusting
//more than one privilege, it could return success but not
//adjust them all - in the general case, you need to trap this
+ winerrno = GetLastError();
::syslog(LOG_ERR, "Failed to enable backup privilege: %s",
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
CloseHandle(hToken);
return false;
@@ -238,9 +241,10 @@ char* ConvertFromWideString(const WCHAR* pString, unsigned int codepage)
if (len == 0)
{
+ winerrno = GetLastError();
::syslog(LOG_WARNING,
"Failed to convert wide string to narrow: "
- "%s", GetErrorMessage(GetLastError()).c_str());
+ "%s", GetErrorMessage(winerrno).c_str());
errno = EINVAL;
return NULL;
}
@@ -270,9 +274,10 @@ char* ConvertFromWideString(const WCHAR* pString, unsigned int codepage)
if (len == 0)
{
+ winerrno = GetLastError();
::syslog(LOG_WARNING,
"Failed to convert wide string to narrow: "
- "%s", GetErrorMessage(GetLastError()).c_str());
+ "%s", GetErrorMessage(winerrno).c_str());
errno = EACCES;
delete [] buffer;
return NULL;
@@ -299,9 +304,10 @@ bool ConvertFromWideString(const std::wstring& rInput,
if (len == 0)
{
+ winerrno = GetLastError();
::syslog(LOG_WARNING,
"Failed to convert wide string to narrow: "
- "%s", GetErrorMessage(GetLastError()).c_str());
+ "%s", GetErrorMessage(winerrno).c_str());
errno = EINVAL;
return false;
}
@@ -331,9 +337,10 @@ bool ConvertFromWideString(const std::wstring& rInput,
if (len == 0)
{
+ winerrno = GetLastError();
::syslog(LOG_WARNING,
"Failed to convert wide string to narrow: "
- "%s", GetErrorMessage(GetLastError()).c_str());
+ "%s", GetErrorMessage(winerrno).c_str());
errno = EACCES;
delete [] buffer;
return false;
@@ -363,10 +370,11 @@ bool ConvertEncoding(const std::string& rSource, int sourceCodePage,
true);
if (pWide == NULL)
{
+ winerrno = GetLastError();
::syslog(LOG_ERR, "Failed to convert string '%s' from "
"current code page %d to wide string: %s",
rSource.c_str(), sourceCodePage,
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
return false;
}
@@ -528,7 +536,10 @@ std::string GetErrorMessage(DWORD errorCode)
if (chars == 0 || pMsgBuf == NULL)
{
- return std::string("failed to get error message");
+ std::ostringstream oss;
+ oss << "Failed to get error message for error code " << errorCode << ": error " <<
+ GetLastError();
+ return oss.str();
}
// remove embedded newline
@@ -605,7 +616,7 @@ HANDLE openfile(const char *pFileName, int flags, int mode)
createDisposition = CREATE_NEW;
}
- if (flags & O_LOCK)
+ if (flags & BOX_OPEN_LOCK)
{
shareMode = 0;
}
@@ -641,7 +652,7 @@ HANDLE openfile(const char *pFileName, int flags, int mode)
::syslog(LOG_WARNING, "Failed to open file '%s': "
"%s", pFileName,
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
return INVALID_HANDLE_VALUE;
}
@@ -684,16 +695,18 @@ int emu_fstat(HANDLE hdir, struct emu_stat * st)
BY_HANDLE_FILE_INFORMATION fi;
if (!GetFileInformationByHandle(hdir, &fi))
{
+ winerrno = GetLastError();
::syslog(LOG_WARNING, "Failed to read file information: "
- "%s", GetErrorMessage(GetLastError()).c_str());
+ "%s", GetErrorMessage(winerrno).c_str());
errno = EACCES;
return -1;
}
if (INVALID_FILE_ATTRIBUTES == fi.dwFileAttributes)
{
+ winerrno = GetLastError();
::syslog(LOG_WARNING, "Failed to get file attributes: "
- "%s", GetErrorMessage(GetLastError()).c_str());
+ "%s", GetErrorMessage(winerrno).c_str());
errno = EACCES;
return -1;
}
@@ -826,10 +839,10 @@ HANDLE OpenFileByNameUtf8(const char* pFileName, DWORD flags)
if (handle == INVALID_HANDLE_VALUE)
{
- DWORD err = GetLastError();
+ winerrno = GetLastError();
- if (err == ERROR_FILE_NOT_FOUND ||
- err == ERROR_PATH_NOT_FOUND)
+ if (winerrno == ERROR_FILE_NOT_FOUND ||
+ winerrno == ERROR_PATH_NOT_FOUND)
{
errno = ENOENT;
}
@@ -837,7 +850,7 @@ HANDLE OpenFileByNameUtf8(const char* pFileName, DWORD flags)
{
::syslog(LOG_WARNING, "Failed to open '%s': "
"%s", pFileName,
- GetErrorMessage(err).c_str());
+ GetErrorMessage(winerrno).c_str());
errno = EACCES;
}
@@ -906,9 +919,10 @@ int statfs(const char * pName, struct statfs * s)
BY_HANDLE_FILE_INFORMATION fi;
if (!GetFileInformationByHandle(handle, &fi))
{
+ winerrno = GetLastError();
::syslog(LOG_WARNING, "Failed to get file information "
"for '%s': %s", pName,
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
CloseHandle(handle);
errno = EACCES;
return -1;
@@ -961,8 +975,9 @@ int emu_utimes(const char * pName, const struct timeval times[])
if (!SetFileTime(handle, &creationTime, NULL, &modificationTime))
{
+ winerrno = GetLastError();
::syslog(LOG_ERR, "Failed to set times on '%s': %s", pName,
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
CloseHandle(handle);
return 1;
}
@@ -1004,8 +1019,9 @@ int emu_chmod(const char * pName, mode_t mode)
DWORD attribs = GetFileAttributesW(pBuffer);
if (attribs == INVALID_FILE_ATTRIBUTES)
{
+ winerrno = GetLastError();
::syslog(LOG_ERR, "Failed to get file attributes of '%s': %s",
- pName, GetErrorMessage(GetLastError()).c_str());
+ pName, GetErrorMessage(winerrno).c_str());
errno = EACCES;
free(pBuffer);
return -1;
@@ -1022,8 +1038,9 @@ int emu_chmod(const char * pName, mode_t mode)
if (!SetFileAttributesW(pBuffer, attribs))
{
+ winerrno = GetLastError();
::syslog(LOG_ERR, "Failed to set file attributes of '%s': %s",
- pName, GetErrorMessage(GetLastError()).c_str());
+ pName, GetErrorMessage(winerrno).c_str());
errno = EACCES;
free(pBuffer);
return -1;
@@ -1078,7 +1095,6 @@ DIR *opendir(const char *name)
}
pDir->fd = FindFirstFileW(pDir->name, &pDir->info);
- DWORD tmp = GetLastError();
if (pDir->fd == INVALID_HANDLE_VALUE)
{
@@ -1297,7 +1313,7 @@ int poll (struct pollfd *ufds, unsigned long nfds, int timeout)
BOOL AddEventSource
(
- LPTSTR pszSrcName, // event source name
+ const std::string& name, // event source name
DWORD dwNum // number of categories
)
{
@@ -1309,8 +1325,9 @@ BOOL AddEventSource
if (len == 0)
{
+ winerrno = GetLastError();
::syslog(LOG_ERR, "Failed to get the program file name: %s",
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
return FALSE;
}
@@ -1318,31 +1335,39 @@ BOOL AddEventSource
std::string regkey("SYSTEM\\CurrentControlSet\\Services\\EventLog\\"
"Application\\");
- regkey += pszSrcName;
+ regkey += name;
HKEY hk;
DWORD dwDisp;
- if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, regkey.c_str(),
- 0, NULL, REG_OPTION_NON_VOLATILE,
- KEY_WRITE, NULL, &hk, &dwDisp))
+ winerrno = RegCreateKeyEx(HKEY_LOCAL_MACHINE, regkey.c_str(),
+ 0, NULL, REG_OPTION_NON_VOLATILE,
+ KEY_WRITE, NULL, &hk, &dwDisp);
+ if (winerrno == ERROR_ACCESS_DENIED)
{
- ::syslog(LOG_ERR, "Failed to create the registry key: %s",
- GetErrorMessage(GetLastError()).c_str());
+ ::syslog(LOG_ERR, "Failed to create the registry key: access denied. You must "
+ "be an Administrator to register new event sources in %s", regkey.c_str());
+ return FALSE;
+ }
+ else if (winerrno != ERROR_SUCCESS)
+ {
+ ::syslog(LOG_ERR, "Failed to create the registry key: %s: %s",
+ GetErrorMessage(winerrno).c_str(), regkey.c_str());
return FALSE;
}
// Set the name of the message file.
- if (RegSetValueExW(hk, // subkey handle
- L"EventMessageFile", // value name
- 0, // must be zero
- REG_EXPAND_SZ, // value type
- (LPBYTE)cmd, // pointer to value data
- len*sizeof(WCHAR))) // data size
+ winerrno = RegSetValueExW(hk, // subkey handle
+ L"EventMessageFile", // value name
+ 0, // must be zero
+ REG_EXPAND_SZ, // value type
+ (LPBYTE)cmd, // pointer to value data
+ len*sizeof(WCHAR)); // data size
+ if (winerrno != ERROR_SUCCESS)
{
::syslog(LOG_ERR, "Failed to set the event message file: %s",
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
RegCloseKey(hk);
return FALSE;
}
@@ -1352,43 +1377,46 @@ BOOL AddEventSource
DWORD dwData = EVENTLOG_ERROR_TYPE | EVENTLOG_WARNING_TYPE |
EVENTLOG_INFORMATION_TYPE;
- if (RegSetValueEx(hk, // subkey handle
- "TypesSupported", // value name
- 0, // must be zero
- REG_DWORD, // value type
- (LPBYTE) &dwData, // pointer to value data
- sizeof(DWORD))) // length of value data
+ winerrno = RegSetValueEx(hk, // subkey handle
+ "TypesSupported", // value name
+ 0, // must be zero
+ REG_DWORD, // value type
+ (LPBYTE) &dwData, // pointer to value data
+ sizeof(DWORD)); // length of value data
+ if (winerrno != ERROR_SUCCESS)
{
::syslog(LOG_ERR, "Failed to set the supported types: %s",
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
RegCloseKey(hk);
return FALSE;
}
// Set the category message file and number of categories.
- if (RegSetValueExW(hk, // subkey handle
- L"CategoryMessageFile", // value name
- 0, // must be zero
- REG_EXPAND_SZ, // value type
- (LPBYTE)cmd, // pointer to value data
- len*sizeof(WCHAR))) // data size
+ winerrno = RegSetValueExW(hk, // subkey handle
+ L"CategoryMessageFile", // value name
+ 0, // must be zero
+ REG_EXPAND_SZ, // value type
+ (LPBYTE)cmd, // pointer to value data
+ len*sizeof(WCHAR)); // data size
+ if (winerrno != ERROR_SUCCESS)
{
::syslog(LOG_ERR, "Failed to set the category message file: "
- "%s", GetErrorMessage(GetLastError()).c_str());
+ "%s", GetErrorMessage(winerrno).c_str());
RegCloseKey(hk);
return FALSE;
}
- if (RegSetValueEx(hk, // subkey handle
+ winerrno = RegSetValueEx(hk, // subkey handle
"CategoryCount", // value name
0, // must be zero
REG_DWORD, // value type
(LPBYTE) &dwNum, // pointer to value data
- sizeof(DWORD))) // length of value data
+ sizeof(DWORD)); // length of value data
+ if (winerrno != ERROR_SUCCESS)
{
::syslog(LOG_ERR, "Failed to set the category count: %s",
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
RegCloseKey(hk);
return FALSE;
}
@@ -1397,7 +1425,7 @@ BOOL AddEventSource
return TRUE;
}
-static HANDLE gSyslogH = 0;
+static HANDLE gSyslogH = INVALID_HANDLE_VALUE;
static bool sHaveWarnedEventLogFull = false;
void openlog(const char * daemonName, int, int)
@@ -1406,19 +1434,21 @@ void openlog(const char * daemonName, int, int)
nameStr += daemonName;
nameStr += ")";
- // register a default event source, so that we can
- // log errors with the process of adding or registering our own.
+ // Don't try to open a new handle when one is already open. It will leak handles.
+ assert(gSyslogH == INVALID_HANDLE_VALUE);
+
+ // Register a default event source, so that we can log errors with the process of
+ // adding or registering our own, which follows. If this fails, there's not much we
+ // can do about it, certainly not send anything to the event log!
gSyslogH = RegisterEventSource(
NULL, // uses local computer
nameStr.c_str()); // source name
if (gSyslogH == NULL)
{
+ gSyslogH = INVALID_HANDLE_VALUE;
}
- char* name = strdup(nameStr.c_str());
- BOOL success = AddEventSource(name, 0);
- free(name);
-
+ BOOL success = AddEventSource(nameStr, 0);
if (!success)
{
::syslog(LOG_ERR, "Failed to add our own event source");
@@ -1428,8 +1458,9 @@ void openlog(const char * daemonName, int, int)
HANDLE newSyslogH = RegisterEventSource(NULL, nameStr.c_str());
if (newSyslogH == NULL)
{
+ winerrno = GetLastError();
::syslog(LOG_ERR, "Failed to register our own event source: "
- "%s", GetErrorMessage(GetLastError()).c_str());
+ "%s", GetErrorMessage(winerrno).c_str());
return;
}
@@ -1439,7 +1470,11 @@ void openlog(const char * daemonName, int, int)
void closelog(void)
{
- DeregisterEventSource(gSyslogH);
+ if(gSyslogH != INVALID_HANDLE_VALUE)
+ {
+ DeregisterEventSource(gSyslogH);
+ gSyslogH = INVALID_HANDLE_VALUE;
+ }
}
void syslog(int loglevel, const char *frmt, ...)
@@ -1494,7 +1529,7 @@ void syslog(int loglevel, const char *frmt, ...)
va_end(args);
- if (gSyslogH == 0)
+ if (gSyslogH == INVALID_HANDLE_VALUE)
{
printf("%s\r\n", buffer);
fflush(stdout);
@@ -1541,22 +1576,20 @@ void syslog(int loglevel, const char *frmt, ...)
if (result == 0)
{
- DWORD err = GetLastError();
- if (err == ERROR_LOG_FILE_FULL)
+ winerrno = GetLastError();
+ if (winerrno == ERROR_LOG_FILE_FULL)
{
if (!sHaveWarnedEventLogFull)
{
printf("Unable to send message to Event Log "
- "(Event Log is full):\r\n");
- fflush(stdout);
+ "(Event Log is full): %s\r\n", buffer);
sHaveWarnedEventLogFull = TRUE;
}
}
else
{
- printf("Unable to send message to Event Log: %s:\r\n",
- GetErrorMessage(err).c_str());
- fflush(stdout);
+ printf("Unable to send message to Event Log: %s: %s\r\n",
+ GetErrorMessage(winerrno).c_str(), buffer);
}
}
else
@@ -1589,8 +1622,9 @@ int emu_chdir(const char* pDirName)
if (result != 0) return 0;
errno = EACCES;
+ winerrno = GetLastError();
fprintf(stderr, "Failed to change directory to '%s': %s\n",
- pDirName, GetErrorMessage(GetLastError()).c_str());
+ pDirName, GetErrorMessage(winerrno).c_str());
return -1;
}
@@ -1668,6 +1702,74 @@ int emu_mkdir(const char* pPathName)
return 0;
}
+int emu_link(const char* pOldPath, const char* pNewPath)
+{
+ std::string AbsOldPathWithUnicode =
+ ConvertPathToAbsoluteUnicode(pOldPath);
+
+ if (AbsOldPathWithUnicode.size() == 0)
+ {
+ // error already logged by ConvertPathToAbsoluteUnicode()
+ return -1;
+ }
+
+ std::string AbsNewPathWithUnicode =
+ ConvertPathToAbsoluteUnicode(pNewPath);
+
+ if (AbsNewPathWithUnicode.size() == 0)
+ {
+ // error already logged by ConvertPathToAbsoluteUnicode()
+ return -1;
+ }
+
+ WCHAR* pOldBuffer = ConvertUtf8ToWideString(AbsOldPathWithUnicode.c_str());
+ if (!pOldBuffer)
+ {
+ return -1;
+ }
+
+ WCHAR* pNewBuffer = ConvertUtf8ToWideString(AbsNewPathWithUnicode.c_str());
+ if (!pNewBuffer)
+ {
+ delete [] pOldBuffer;
+ return -1;
+ }
+
+ BOOL result = CreateHardLinkW(pNewBuffer, pOldBuffer, NULL);
+ winerrno = GetLastError();
+ delete [] pOldBuffer;
+ delete [] pNewBuffer;
+
+ if (!result)
+ {
+ if (winerrno == ERROR_FILE_NOT_FOUND ||
+ winerrno == ERROR_PATH_NOT_FOUND)
+ {
+ errno = ENOENT;
+ }
+ else if (winerrno == ERROR_SHARING_VIOLATION)
+ {
+ errno = EBUSY;
+ }
+ else if (winerrno == ERROR_ACCESS_DENIED)
+ {
+ errno = EACCES;
+ }
+ else
+ {
+ ::syslog(LOG_WARNING, "Failed to hardlink file "
+ "'%s' to '%s': %s", pOldPath, pNewPath,
+ GetErrorMessage(winerrno).c_str());
+ errno = ENOSYS;
+ }
+
+ return -1;
+ }
+
+ return 0;
+
+}
+
int emu_unlink(const char* pFileName)
{
std::string AbsPathWithUnicode =
@@ -1686,20 +1788,21 @@ int emu_unlink(const char* pFileName)
}
BOOL result = DeleteFileW(pBuffer);
- DWORD err = GetLastError();
+ winerrno = GetLastError();
delete [] pBuffer;
if (!result)
{
- if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
+ if (winerrno == ERROR_FILE_NOT_FOUND ||
+ winerrno == ERROR_PATH_NOT_FOUND)
{
errno = ENOENT;
}
- else if (err == ERROR_SHARING_VIOLATION)
+ else if (winerrno == ERROR_SHARING_VIOLATION)
{
errno = EBUSY;
}
- else if (err == ERROR_ACCESS_DENIED)
+ else if (winerrno == ERROR_ACCESS_DENIED)
{
errno = EACCES;
}
@@ -1707,9 +1810,10 @@ int emu_unlink(const char* pFileName)
{
::syslog(LOG_WARNING, "Failed to delete file "
"'%s': %s", pFileName,
- GetErrorMessage(err).c_str());
+ GetErrorMessage(winerrno).c_str());
errno = ENOSYS;
}
+
return -1;
}
@@ -1751,21 +1855,22 @@ int emu_rename(const char* pOldFileName, const char* pNewFileName)
}
BOOL result = MoveFileW(pOldBuffer, pNewBuffer);
- DWORD err = GetLastError();
+ winerrno = GetLastError();
delete [] pOldBuffer;
delete [] pNewBuffer;
if (!result)
{
- if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
+ if (winerrno == ERROR_FILE_NOT_FOUND ||
+ winerrno == ERROR_PATH_NOT_FOUND)
{
errno = ENOENT;
}
- else if (err == ERROR_SHARING_VIOLATION)
+ else if (winerrno == ERROR_SHARING_VIOLATION)
{
errno = EBUSY;
}
- else if (err == ERROR_ACCESS_DENIED)
+ else if (winerrno == ERROR_ACCESS_DENIED)
{
errno = EACCES;
}
@@ -1773,7 +1878,7 @@ int emu_rename(const char* pOldFileName, const char* pNewFileName)
{
::syslog(LOG_WARNING, "Failed to rename file "
"'%s' to '%s': %s", pOldFileName, pNewFileName,
- GetErrorMessage(err).c_str());
+ GetErrorMessage(winerrno).c_str());
errno = ENOSYS;
}
return -1;
@@ -1788,8 +1893,9 @@ int console_read(char* pBuffer, size_t BufferSize)
if (hConsole == INVALID_HANDLE_VALUE)
{
+ winerrno = GetLastError();
::fprintf(stderr, "Failed to get a handle on standard input: "
- "%s", GetErrorMessage(GetLastError()).c_str());
+ "%s", GetErrorMessage(winerrno).c_str());
return -1;
}
@@ -1812,8 +1918,9 @@ int console_read(char* pBuffer, size_t BufferSize)
NULL // reserved
))
{
+ winerrno = GetLastError();
::fprintf(stderr, "Failed to read from console: %s\n",
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
return -1;
}
@@ -1864,7 +1971,7 @@ int writev(int filedes, const struct iovec *vector, size_t count)
return bytes;
}
-// need this for conversions
+// Need this for conversions. Works in UTC.
time_t ConvertFileTimeToTime_t(FILETIME *fileTime)
{
SYSTEMTIME stUTC;
@@ -1883,18 +1990,17 @@ time_t ConvertFileTimeToTime_t(FILETIME *fileTime)
// timeinfo.tm_yday = ...;
timeinfo.tm_year = stUTC.wYear - 1900;
- time_t retVal = mktime(&timeinfo) - _timezone;
+ time_t retVal = _mkgmtime(&timeinfo);
return retVal;
}
bool ConvertTime_tToFileTime(const time_t from, FILETIME *pTo)
{
- time_t adjusted = from + _timezone;
- struct tm *time_breakdown = gmtime(&adjusted);
+ struct tm *time_breakdown = gmtime(&from);
if (time_breakdown == NULL)
{
::syslog(LOG_ERR, "Error: failed to convert time format: "
- "%d is not a valid time\n", adjusted);
+ "%d is not a valid time\n", from);
return false;
}
@@ -1911,8 +2017,9 @@ bool ConvertTime_tToFileTime(const time_t from, FILETIME *pTo)
// Convert the last-write time to local time.
if (!SystemTimeToFileTime(&stUTC, pTo))
{
+ winerrno = GetLastError();
syslog(LOG_ERR, "Failed to convert between time formats: %s",
- GetErrorMessage(GetLastError()).c_str());
+ GetErrorMessage(winerrno).c_str());
return false;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 21:08:31 +0000