Sweden-Number/programs/winecfg/drive.c

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/*
* Drive management code
*
* Copyright 2003 Mark Westcott
* Copyright 2003-2004 Mike Hearn
* Copyright 2004 Chris Morgan
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <assert.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <windef.h>
#include <winbase.h>
#include <winreg.h>
#include <wine/debug.h>
#include <shellapi.h>
#include <objbase.h>
#include <shlguid.h>
#include <shlwapi.h>
#include <shlobj.h>
#include "winecfg.h"
#include "resource.h"
WINE_DEFAULT_DEBUG_CHANNEL(winecfg);
struct drive drives[26]; /* one for each drive letter */
static inline int letter_to_index(char letter)
{
return (toupper(letter) - 'A');
}
/* This function produces a mask for each drive letter that isn't
* currently used. Each bit of the long result represents a letter,
* with A being the least significant bit, and Z being the most
* significant.
*
* To calculate this, we loop over each letter, and see if we can get
* a drive entry for it. If so, we set the appropriate bit. At the
* end, we flip each bit, to give the desired result.
*
* The letter parameter is always marked as being available. This is
* so the edit dialog can display the currently used drive letter
* alongside the available ones.
*/
long drive_available_mask(char letter)
{
long result = 0;
int i;
WINE_TRACE("\n");
for(i = 0; i < 26; i++)
{
if (!drives[i].in_use) continue;
result |= (1 << (toupper(drives[i].letter) - 'A'));
}
result = ~result;
if (letter) result |= DRIVE_MASK_BIT(letter);
WINE_TRACE("finished drive letter loop with %lx\n", result);
return result;
}
BOOL add_drive(char letter, char *targetpath, char *label, char *serial, uint type)
{
int driveIndex = letter_to_index(letter);
if(drives[driveIndex].in_use)
return FALSE;
WINE_TRACE("letter == '%c', unixpath == '%s', label == '%s', serial == '%s', type == %d\n",
letter, targetpath, label, serial, type);
drives[driveIndex].letter = toupper(letter);
drives[driveIndex].unixpath = strdupA(targetpath);
drives[driveIndex].label = strdupA(label);
drives[driveIndex].serial = strdupA(serial);
drives[driveIndex].type = type;
drives[driveIndex].in_use = TRUE;
return TRUE;
}
/* deallocates the contents of the drive. does not free the drive itself */
void delete_drive(struct drive *d)
{
HeapFree(GetProcessHeap(), 0, d->unixpath);
HeapFree(GetProcessHeap(), 0, d->label);
HeapFree(GetProcessHeap(), 0, d->serial);
d->in_use = FALSE;
}
#if 0
/* currently unused, but if users have this burning desire to be able to rename drives,
we can put it back in.
*/
BOOL copyDrive(struct drive *pSrc, struct drive *pDst)
{
if(pDst->in_use)
{
WINE_TRACE("pDst already in use\n");
return FALSE;
}
if(!pSrc->unixpath) WINE_TRACE("!pSrc->unixpath\n");
if(!pSrc->label) WINE_TRACE("!pSrc->label\n");
if(!pSrc->serial) WINE_TRACE("!pSrc->serial\n");
pDst->unixpath = strdupA(pSrc->unixpath);
pDst->label = strdupA(pSrc->label);
pDst->serial = strdupA(pSrc->serial);
pDst->type = pSrc->type;
pDst->in_use = TRUE;
return TRUE;
}
BOOL moveDrive(struct drive *pSrc, struct drive *pDst)
{
WINE_TRACE("pSrc->letter == %c, pDst->letter == %c\n", pSrc->letter, pDst->letter);
if(!copyDrive(pSrc, pDst))
{
WINE_TRACE("copyDrive failed\n");
return FALSE;
}
delete_drive(pSrc);
return TRUE;
}
#endif
/* Load currently defined drives into the drives array */
void load_drives()
{
char *devices, *dev;
int len;
int drivecount = 0, i;
int retval;
static const int arraysize = 512;
WINE_TRACE("\n");
/* FIXME: broken symlinks in $WINEPREFIX/dosdevices will not be
returned by this API, so we need to handle that */
/* setup the drives array */
dev = devices = HeapAlloc(GetProcessHeap(), 0, arraysize);
len = GetLogicalDriveStrings(arraysize, devices);
/* make all devices unused */
for (i = 0; i < 26; i++)
{
drives[i].letter = 'A' + i;
drives[i].in_use = FALSE;
}
/* work backwards through the result of GetLogicalDriveStrings */
while (len)
{
char volname[512]; /* volume name */
DWORD serial;
char serialstr[256];
char rootpath[256];
char simplepath[3];
int pathlen;
char targetpath[256];
char *c;
*devices = toupper(*devices);
WINE_TRACE("devices == '%s'\n", devices);
volname[0] = 0;
retval = GetVolumeInformation(devices,
volname,
sizeof(volname),
&serial,
NULL,
NULL,
NULL,
0);
if(!retval)
{
WINE_ERR("GetVolumeInformation() for '%s' failed, setting serial to 0\n", devices);
PRINTERROR();
serial = 0;
}
WINE_TRACE("serial: '0x%lX'\n", serial);
/* build rootpath for GetDriveType() */
strncpy(rootpath, devices, sizeof(rootpath));
pathlen = strlen(rootpath);
/* ensure that we have a backslash on the root path */
if ((rootpath[pathlen - 1] != '\\') && (pathlen < sizeof(rootpath)))
{
rootpath[pathlen] = '\\';
rootpath[pathlen + 1] = 0;
}
strncpy(simplepath, devices, 2); /* QueryDosDevice() requires no trailing backslash */
simplepath[2] = 0;
QueryDosDevice(simplepath, targetpath, sizeof(targetpath));
/* targetpath may have forward slashes rather than backslashes, so correct */
c = targetpath;
do if (*c == '\\') *c = '/'; while (*c++);
snprintf(serialstr, sizeof(serialstr), "%lX", serial);
WINE_TRACE("serialstr: '%s'\n", serialstr);
add_drive(*devices, targetpath, volname, serialstr, GetDriveType(rootpath));
len -= strlen(devices);
devices += strlen(devices);
/* skip over any nulls */
while ((*devices == 0) && (len))
{
len--;
devices++;
}
drivecount++;
}
WINE_TRACE("found %d drives\n", drivecount);
HeapFree(GetProcessHeap(), 0, dev);
}
/* some of this code appears to be broken by bugs in Wine: the label
* setting code has no effect, for instance */
void apply_drive_changes()
{
int i;
CHAR devicename[4];
CHAR targetpath[256];
BOOL foundDrive;
CHAR volumeNameBuffer[512];
DWORD serialNumber;
DWORD maxComponentLength;
DWORD fileSystemFlags;
CHAR fileSystemName[128];
int retval;
BOOL defineDevice;
WINE_TRACE("\n");
/* add each drive and remove as we go */
for(i = 0; i < 26; i++)
{
defineDevice = FALSE;
foundDrive = FALSE;
snprintf(devicename, sizeof(devicename), "%c:", 'A' + i);
/* get a drive */
if(QueryDosDevice(devicename, targetpath, sizeof(targetpath)))
{
foundDrive = TRUE;
}
/* if we found a drive and have a drive then compare things */
if(foundDrive && drives[i].in_use)
{
char newSerialNumberText[256];
volumeNameBuffer[0] = 0;
WINE_TRACE("drives[i].letter: '%c'\n", drives[i].letter);
snprintf(devicename, sizeof(devicename), "%c:\\", 'A' + i);
retval = GetVolumeInformation(devicename,
volumeNameBuffer,
sizeof(volumeNameBuffer),
&serialNumber,
&maxComponentLength,
&fileSystemFlags,
fileSystemName,
sizeof(fileSystemName));
if(!retval)
{
WINE_TRACE(" GetVolumeInformation() for '%s' failed\n", devicename);
WINE_TRACE(" Skipping this drive\n");
PRINTERROR();
continue; /* skip this drive */
}
snprintf(newSerialNumberText, sizeof(newSerialNumberText), "%lX", serialNumber);
WINE_TRACE(" current path: '%s', new path: '%s'\n",
targetpath, drives[i].unixpath);
WINE_TRACE(" current label: '%s', new label: '%s'\n",
volumeNameBuffer, drives[i].label);
WINE_TRACE(" current serial: '%s', new serial: '%s'\n",
newSerialNumberText, drives[i].serial);
/* compare to what we have */
/* do we have the same targetpath? */
if(strcmp(drives[i].unixpath, targetpath) ||
strcmp(drives[i].label, volumeNameBuffer) ||
strcmp(drives[i].serial, newSerialNumberText))
{
defineDevice = TRUE;
WINE_TRACE(" making changes to drive '%s'\n", devicename);
}
else
{
WINE_TRACE(" no changes to drive '%s'\n", devicename);
}
}
else if(foundDrive && !drives[i].in_use)
{
/* remove this drive */
if(!DefineDosDevice(DDD_REMOVE_DEFINITION, devicename, drives[i].unixpath))
{
WINE_ERR("unable to remove devicename of '%s', targetpath of '%s'\n",
devicename, drives[i].unixpath);
PRINTERROR();
}
else
{
WINE_TRACE("removed devicename of '%s', targetpath of '%s'\n",
devicename, drives[i].unixpath);
}
}
else if(drives[i].in_use) /* foundDrive must be false from the above check */
{
defineDevice = TRUE;
}
/* adding and modifying are the same steps */
if(defineDevice)
{
char filename[256];
HANDLE hFile;
HKEY hKey;
char *typeText;
char driveValue[256];
/* define this drive */
/* DefineDosDevice() requires that NO trailing slash be present */
snprintf(devicename, sizeof(devicename), "%c:", 'A' + i);
if(!DefineDosDevice(DDD_RAW_TARGET_PATH, devicename, drives[i].unixpath))
{
WINE_ERR(" unable to define devicename of '%s', targetpath of '%s'\n",
devicename, drives[i].unixpath);
PRINTERROR();
}
else
{
WINE_TRACE(" added devicename of '%s', targetpath of '%s'\n",
devicename, drives[i].unixpath);
/* SetVolumeLabel() requires a trailing slash */
snprintf(devicename, sizeof(devicename), "%c:\\", 'A' + i);
if(!SetVolumeLabel(devicename, drives[i].label))
{
WINE_ERR("unable to set volume label for devicename of '%s', label of '%s'\n",
devicename, drives[i].label);
PRINTERROR();
}
else
{
WINE_TRACE(" set volume label for devicename of '%s', label of '%s'\n",
devicename, drives[i].label);
}
}
/* Set the drive type in the registry */
if(drives[i].type == DRIVE_FIXED)
typeText = "hd";
else if(drives[i].type == DRIVE_REMOTE)
typeText = "network";
else if(drives[i].type == DRIVE_REMOVABLE)
typeText = "floppy";
else /* must be DRIVE_CDROM */
typeText = "cdrom";
snprintf(driveValue, sizeof(driveValue), "%c:", toupper(drives[i].letter));
retval = RegOpenKey(HKEY_LOCAL_MACHINE,
"Software\\Wine\\Drives",
&hKey);
if(retval != ERROR_SUCCESS)
{
WINE_TRACE(" Unable to open '%s'\n", "Software\\Wine\\Drives");
}
else
{
retval = RegSetValueEx(
hKey,
driveValue,
0,
REG_SZ,
typeText,
strlen(typeText) + 1);
if(retval != ERROR_SUCCESS)
{
WINE_TRACE(" Unable to set value of '%s' to '%s'\n",
driveValue, typeText);
}
else
{
WINE_TRACE(" Finished setting value of '%s' to '%s'\n",
driveValue, typeText);
RegCloseKey(hKey);
}
}
/* Set the drive serial number via a .windows-serial file in */
/* the targetpath directory */
snprintf(filename, sizeof(filename), "%c:\\.windows-serial", drives[i].letter);
WINE_TRACE(" Putting serial number of '%ld' into file '%s'\n",
serialNumber, filename);
hFile = CreateFile(filename,
GENERIC_WRITE,
FILE_SHARE_READ,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (hFile != INVALID_HANDLE_VALUE)
{
DWORD w;
WINE_TRACE(" writing serial number of '%s'\n", drives[i].serial);
WriteFile(hFile,
drives[i].serial,
strlen(drives[i].serial),
&w,
NULL);
WriteFile(hFile,
"\n",
strlen("\n"),
&w,
NULL);
CloseHandle(hFile);
}
else
{
WINE_TRACE(" CreateFile() error with file '%s'\n", filename);
}
}
/* if this drive is in use we should free it up */
if(drives[i].in_use)
{
delete_drive(&drives[i]); /* free up the string memory */
}
}
}