/**
* @brief Determine the Windows path of our / directory
* @internal
* @return Error code from winerror.h, ERROR_SUCCESS on success
*/
long _plibc_DetermineRootDir()
{
char szModule[_MAX_PATH], szDrv[_MAX_DRIVE], szDir[_MAX_DIR];
char *pszBin;
long lDirLen;
/* Get the path of the calling module.
It should be located in one of the "bin" directories */
GetModuleFileName(NULL, szModule, MAX_PATH);
_splitpath(szModule, szDrv, szDir, NULL, NULL);
lDirLen = strlen(szDir);
pszBin = szDir + lDirLen - 5;
if (lDirLen < 5 || strnicmp(pszBin, "\\bin\\", 5) != 0)
{
char szRegPath[251];
/* Get the installation path from the registry */
lDirLen = _MAX_PATH - 1;
_win_snprintf(szRegPath, 250, "Software\\%s\\%s", _pszOrg, _pszApp);
szRegPath[250] = 0;
if(QueryRegistry
(HKEY_CURRENT_USER, szRegPath, "InstallDir",
szRootDir, &lDirLen) != ERROR_SUCCESS)
{
lDirLen = _MAX_PATH - 1;
if(QueryRegistry
(HKEY_LOCAL_MACHINE, szRegPath, "InstallDir",
szRootDir, &lDirLen) != ERROR_SUCCESS)
{
if (GetCurrentDirectory(sizeof(szRootDir), szRootDir) == 0)
return ERROR_BAD_ENVIRONMENT;
lDirLen = strlen(szRootDir);
}
}
strcat(szRootDir, "\\");
lRootDirLen = lDirLen + 1;
szDrv[0] = 0;
}
else
{
pszBin[1] = 0;
lDirLen -= 4;
}
if(szDrv[0])
{
strcpy(szRootDir, szDrv);
lRootDirLen = 3 + lDirLen - 1; /* 3 = strlen(szDir) */
if(lRootDirLen > _MAX_PATH)
return ERROR_BUFFER_OVERFLOW;
strcat(szRootDir, szDir);
}
return ERROR_SUCCESS;
}
/**
* @brief Get the errno corresponding to the Winsock error
* @param lWinError Error code defined in winsock.h
*/
int GetErrnoFromWinsockError(long lWinError)
{
switch(lWinError)
{
case 0:
return 0;
case WSAEINTR:
return EINTR;
case WSAEWOULDBLOCK:
return EWOULDBLOCK;
case WSAEINPROGRESS:
return EINPROGRESS;
case WSAEALREADY:
return EALREADY;
case WSAENOTSOCK:
return ENOTSOCK;
case WSAEDESTADDRREQ:
return EDESTADDRREQ;
case WSAEMSGSIZE:
return EMSGSIZE;
case WSAEPROTOTYPE:
return EPROTOTYPE;
case WSAENOPROTOOPT:
return ENOPROTOOPT;
case WSAEPROTONOSUPPORT:
return EPROTONOSUPPORT;
case WSAESOCKTNOSUPPORT:
return ESOCKTNOSUPPORT;
case WSAEOPNOTSUPP:
return EOPNOTSUPP;
case WSAEPFNOSUPPORT:
return EPFNOSUPPORT;
case WSAEAFNOSUPPORT:
return EAFNOSUPPORT;
case WSAEADDRINUSE:
return EADDRINUSE;
case WSAEADDRNOTAVAIL:
return EADDRNOTAVAIL;
case WSAENETDOWN:
return ENETDOWN;
case WSAENETUNREACH:
return ENETUNREACH;
case WSAENETRESET:
return ENETRESET;
case WSAECONNABORTED:
return ECONNABORTED;
case WSAECONNRESET:
return ECONNRESET;
case WSAENOBUFS:
return ENOBUFS;
case WSAEISCONN:
return EISCONN;
case WSAENOTCONN:
return ENOTCONN;
case WSAESHUTDOWN:
return ESHUTDOWN;
case WSAETOOMANYREFS:
return ETOOMANYREFS;
case WSAETIMEDOUT:
return ETIMEDOUT;
case WSAECONNREFUSED:
return ECONNREFUSED;
case WSAELOOP:
return ELOOP;
case WSAENAMETOOLONG:
return ENAMETOOLONG;
case WSAEHOSTDOWN:
return EHOSTDOWN;
case WSAEHOSTUNREACH:
return EHOSTUNREACH;
case WSAENOTEMPTY:
return ENOTEMPTY;
case WSAEPROCLIM:
return EPROCLIM;
case WSAEUSERS:
return EUSERS;
case WSAEDQUOT:
return EDQUOT;
case WSAESTALE:
return ESTALE;
case WSAEREMOTE:
return EREMOTE;
case WSAEINVAL:
return EINVAL;
case WSAEFAULT:
return EFAULT;
case WSANO_DATA:
return ENODATA;
default:
{
char szPanic[1001];
_win_snprintf(szPanic, 1000, "Unknown error %i in " \
"SetErrnoFromWinsockError()\n", lWinError);
szPanic[1000] = 0;
__plibc_panic(4, szPanic);
return ESTALE;
}
}
}
/**
* @brief Convert a POSIX-sytle path to a Windows-style path
* @param pszUnix POSIX path
* @param pszWindows Windows path
* @param derefLinks 1 to dereference links
* @return Error code from winerror.h, ERROR_SUCCESS on success
*/
int plibc_conv_to_win_path_ex(const char *pszUnix, char *pszWindows, int derefLinks)
{
char *pSrc, *pDest;
long iSpaceUsed;
int iUnixLen;
if (!pszUnix || !pszWindows)
return ERROR_INVALID_PARAMETER;
iUnixLen = strlen(pszUnix);
/* Check if we already have a windows path */
if((strchr(pszUnix, '\\') != NULL) || (strchr(pszUnix, ':') != NULL))
{
if(iUnixLen > MAX_PATH)
return ERROR_BUFFER_OVERFLOW;
strcpy(pszWindows, pszUnix);
}
/* Temp. dir? */
if(strncmp(pszUnix, "/tmp", 4) == 0)
{
iSpaceUsed = GetTempPath(_MAX_PATH, pszWindows);
if (iSpaceUsed > _MAX_PATH)
return ERROR_BUFFER_OVERFLOW;
pDest = pszWindows + iSpaceUsed;
pSrc = (char *) pszUnix + 4;
}
/* Bit bucket? */
else if (strncmp(pszUnix, "/dev/null", 9) == 0)
{
strcpy(pszWindows, "nul");
iSpaceUsed = 3;
pDest = pszWindows + lHomeDirLen;
pSrc = (char *) pszUnix + 9;
}
/* Data directories */
else if (strncmp(pszUnix, "/etc", 4) == 0 ||
strncmp(pszUnix, "/com", 4) == 0 ||
strncmp(pszUnix, "/var", 4) == 0)
{
strcpy(pszWindows, szDataDir);
iSpaceUsed = lDataDirLen;
pDest = pszWindows + lDataDirLen;
pSrc = (char *) pszUnix + 1;
}
/* Is the unix path a full path? */
else if(pszUnix[0] == '/')
{
strcpy(pszWindows, szRootDir);
iSpaceUsed = lRootDirLen;
pDest = pszWindows + lRootDirLen;
pSrc = (char *) pszUnix + 1;
}
/* Home dir? */
else if (pszUnix[0] == '~')
{
strcpy(pszWindows, szHomeDir);
iSpaceUsed = lHomeDirLen;
pDest = pszWindows + lHomeDirLen;
pSrc = (char *) pszUnix + 1;
}
/* Home dir (env var)? */
else if (strncmp(pszUnix, "$HOME", 5) == 0)
{
strcpy(pszWindows, szHomeDir);
iSpaceUsed = lHomeDirLen;
pDest = pszWindows + lHomeDirLen;
pSrc = (char *) pszUnix + 5;
}
else
{
pDest = pszWindows;
iSpaceUsed = 0;
pSrc = (char *) pszUnix;
}
iSpaceUsed += strlen(pSrc);
if(iSpaceUsed + 1 > _MAX_PATH)
return ERROR_BUFFER_OVERFLOW;
/* substitute all slashes */
while(*pSrc)
{
if(*pSrc == '/')
*pDest = '\\';
else
*pDest = *pSrc;
pDest++;
pSrc++;
}
*pDest = 0;
if (derefLinks)
__win_deref(pszWindows);
else
{
/* The filename possibly refers to a symlink, but the .lnk extension may be
missing.
1. Check if the requested file seems to be a normal file
2. Check if the file exists
2.1. Yes: Finished
2.2. No: Check if "filename.lnk" exists
2.2.1 Yes: Append ".lnk" */
if (strnicmp(pDest - 4, ".lnk", 4) != 0)
{
HANDLE h = CreateFile(pszWindows, 0, FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (h == INVALID_HANDLE_VALUE)
{
/* File doesn't exist, try shortcut */
char *pLnk;
int mal;
if (iSpaceUsed + 5 > _MAX_PATH)
{
pLnk = malloc(iSpaceUsed + 5);
strcpy(pLnk, pszWindows);
mal = 1;
}
else
{
pLnk = pszWindows;
mal = 0;
}
strcat(pLnk, ".lnk");
h = CreateFile(pLnk, 0, FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (h != INVALID_HANDLE_VALUE)
{
/* Shortcut exists */
CloseHandle(h);
if (mal)
/* Need to copy */
if (iSpaceUsed + 5 <= _MAX_PATH)
strcpy(pszWindows, pLnk);
else
{
free(pLnk);
return ERROR_BUFFER_OVERFLOW;
}
}
else
pLnk[iSpaceUsed] = 0;
if (mal)
free(pLnk);
}
else
CloseHandle(h);
}
}
#if DEBUG_WINPROC
{
char szInfo[1001];
_win_snprintf(szInfo, 1000, "Posix path %s resolved to %s\n", pszUnix,
pszWindows);
szInfo[1000] = 0;
__plibc_panic(INT_MAX, szInfo);
}
#endif
return ERROR_SUCCESS;
}
/**
* @brief Set errno according to a Windows error
* @param lWinError Error code defined in winerror.h
*/
void _SetErrnoFromWinError(long lWinError, char *pszCaller, int iLine)
{
switch(lWinError)
{
case ERROR_SUCCESS:
errno = 0;
break;
case ERROR_INVALID_FUNCTION:
errno = EBADRQC;
break;
case ERROR_FILE_NOT_FOUND:
errno = ENOENT;
break;
case ERROR_PATH_NOT_FOUND:
errno = ENOENT;
break;
case ERROR_TOO_MANY_OPEN_FILES:
errno = EMFILE;
break;
case ERROR_ACCESS_DENIED:
errno = EACCES;
break;
case ERROR_INVALID_HANDLE:
errno = EBADF;
break;
case ERROR_NOT_ENOUGH_MEMORY:
errno = ENOMEM;
break;
case ERROR_INVALID_DATA:
errno = EINVAL;
break;
case ERROR_OUTOFMEMORY:
errno = ENOMEM;
break;
case ERROR_INVALID_DRIVE:
errno = ENODEV;
break;
case ERROR_NOT_SAME_DEVICE:
errno = EXDEV;
break;
case ERROR_NO_MORE_FILES:
errno = ENMFILE;
break;
case ERROR_WRITE_PROTECT:
errno = EROFS;
break;
case ERROR_BAD_UNIT:
errno = ENODEV;
break;
case ERROR_SHARING_VIOLATION:
errno = EACCES;
break;
case ERROR_LOCK_VIOLATION:
errno = EACCES;
break;
case ERROR_SHARING_BUFFER_EXCEEDED:
errno = ENOLCK;
break;
case ERROR_HANDLE_EOF:
errno = ENODATA;
break;
case ERROR_HANDLE_DISK_FULL:
errno = ENOSPC;
break;
case ERROR_NOT_SUPPORTED:
errno = ENOSYS;
break;
case ERROR_REM_NOT_LIST:
errno = ENONET;
break;
case ERROR_DUP_NAME:
errno = ENOTUNIQ;
break;
case ERROR_BAD_NETPATH:
errno = ENOSHARE;
break;
case ERROR_BAD_NET_NAME:
errno = ENOSHARE;
break;
case ERROR_FILE_EXISTS:
errno = EEXIST;
break;
case ERROR_CANNOT_MAKE:
errno = EPERM;
break;
case ERROR_INVALID_PARAMETER:
errno = EINVAL;
break;
case ERROR_NO_PROC_SLOTS:
errno = EAGAIN;
break;
case ERROR_BROKEN_PIPE:
errno = EPIPE;
break;
case ERROR_OPEN_FAILED:
errno = EIO;
break;
case ERROR_NO_MORE_SEARCH_HANDLES:
errno = ENFILE;
break;
case ERROR_CALL_NOT_IMPLEMENTED:
errno = ENOSYS;
break;
case ERROR_INVALID_NAME:
errno = ENOENT;
break;
case ERROR_WAIT_NO_CHILDREN:
errno = ECHILD;
break;
case ERROR_CHILD_NOT_COMPLETE:
errno = EBUSY;
break;
case ERROR_DIR_NOT_EMPTY:
errno = ENOTEMPTY;
break;
case ERROR_SIGNAL_REFUSED:
errno = EIO;
break;
case ERROR_BAD_PATHNAME:
errno = ENOENT;
break;
case ERROR_SIGNAL_PENDING:
errno = EBUSY;
break;
case ERROR_MAX_THRDS_REACHED:
errno = EAGAIN;
break;
case ERROR_BUSY:
errno = EBUSY;
break;
case ERROR_ALREADY_EXISTS:
errno = EEXIST;
break;
case ERROR_NO_SIGNAL_SENT:
errno = EIO;
break;
case ERROR_FILENAME_EXCED_RANGE:
errno = EINVAL;
break;
case ERROR_META_EXPANSION_TOO_LONG:
errno = EINVAL;
break;
case ERROR_INVALID_SIGNAL_NUMBER:
errno = EINVAL;
break;
case ERROR_THREAD_1_INACTIVE:
errno = EINVAL;
break;
case ERROR_BAD_PIPE:
errno = EINVAL;
break;
case ERROR_PIPE_BUSY:
errno = EBUSY;
break;
case ERROR_NO_DATA:
errno = EPIPE;
break;
case ERROR_PIPE_NOT_CONNECTED:
errno = ECOMM;
break;
case ERROR_MORE_DATA:
errno = EAGAIN;
break;
case ERROR_DIRECTORY:
errno = ENOTDIR;
break;
case ERROR_PIPE_CONNECTED:
errno = EBUSY;
break;
case ERROR_PIPE_LISTENING:
errno = ECOMM;
break;
case ERROR_NO_TOKEN:
errno = EINVAL;
break;
case ERROR_PROCESS_ABORTED:
errno = EFAULT;
break;
case ERROR_BAD_DEVICE:
errno = ENODEV;
break;
case ERROR_BAD_USERNAME:
errno = EINVAL;
break;
case ERROR_NOT_CONNECTED:
errno = ENOLINK;
break;
case ERROR_OPEN_FILES:
errno = EAGAIN;
break;
case ERROR_ACTIVE_CONNECTIONS:
errno = EAGAIN;
break;
case ERROR_DEVICE_IN_USE:
errno = EAGAIN;
break;
case ERROR_INVALID_AT_INTERRUPT_TIME:
errno = EINTR;
break;
case ERROR_IO_DEVICE:
errno = EIO;
break;
case ERROR_NOT_OWNER:
errno = EPERM;
break;
case ERROR_END_OF_MEDIA:
errno = ENOSPC;
break;
case ERROR_EOM_OVERFLOW:
errno = ENOSPC;
break;
case ERROR_BEGINNING_OF_MEDIA:
errno = ESPIPE;
break;
case ERROR_SETMARK_DETECTED:
errno = ESPIPE;
break;
case ERROR_NO_DATA_DETECTED:
errno = ENOSPC;
break;
case ERROR_POSSIBLE_DEADLOCK:
errno = EDEADLOCK;
break;
case ERROR_CRC:
errno = EIO;
break;
case ERROR_NEGATIVE_SEEK:
errno = EINVAL;
break;
case ERROR_NOT_READY:
errno = ENOMEDIUM;
break;
case ERROR_DISK_FULL:
errno = ENOSPC;
break;
case ERROR_NOACCESS:
errno = EFAULT;
break;
case ERROR_FILE_INVALID:
errno = ENXIO;
break;
case ERROR_INVALID_ADDRESS:
errno = EFAULT;
break;
case ERROR_BUFFER_OVERFLOW:
errno = ENOMEM;
break;
case ERROR_SERVICE_DOES_NOT_EXIST:
errno = ESRCH;
break;
case ERROR_SERVICE_EXISTS:
errno = EEXIST;
break;
default:
{
char szPanic[1001];
errno = ESTALE;
_win_snprintf(szPanic, 1000, "Unknown error %i in PlibC "\
"SetErrnoFromWinError(). Source: %s:%i\n", lWinError, pszCaller,
iLine);
szPanic[1000] = 0;
__plibc_panic(3, szPanic);
break;
}
}
}
