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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <stdarg.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 <wine/library.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 << (letter_to_index(drives[i].letter)));
}
result = ~result;
if (letter) result |= DRIVE_MASK_BIT(letter);
WINE_TRACE("finished drive letter loop with %lx\n", result);
return result;
}
BOOL add_drive(const char letter, const char *targetpath, const char *label, const char *serial, unsigned int 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);
d->unixpath = NULL;
HeapFree(GetProcessHeap(), 0, d->label);
d->label = NULL;
HeapFree(GetProcessHeap(), 0, d->serial);
d->serial = NULL;
d->in_use = FALSE;
}
static void set_drive_type( char letter, DWORD type )
{
HKEY hKey;
char driveValue[4];
const char *typeText = NULL;
sprintf(driveValue, "%c:", letter);
/* Set the drive type in the registry */
if (type == DRIVE_FIXED)
typeText = "hd";
else if (type == DRIVE_REMOTE)
typeText = "network";
else if (type == DRIVE_REMOVABLE)
typeText = "floppy";
else if (type == DRIVE_CDROM)
typeText = "cdrom";
if (RegCreateKey(HKEY_LOCAL_MACHINE, "Software\\Wine\\Drives", &hKey) != ERROR_SUCCESS)
WINE_TRACE(" Unable to open '%s'\n", "Software\\Wine\\Drives");
else
{
if (typeText)
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RegSetValueEx( hKey, driveValue, 0, REG_SZ, (const BYTE *)typeText, strlen(typeText) + 1 );
else
RegDeleteValue( hKey, driveValue );
RegCloseKey(hKey);
}
}
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static DWORD get_drive_type( char letter )
{
HKEY hKey;
char driveValue[4];
DWORD ret = DRIVE_UNKNOWN;
sprintf(driveValue, "%c:", letter);
if (RegOpenKey(HKEY_LOCAL_MACHINE, "Software\\Wine\\Drives", &hKey) != ERROR_SUCCESS)
WINE_TRACE(" Unable to open Software\\Wine\\Drives\n" );
else
{
char buffer[80];
DWORD size = sizeof(buffer);
if (!RegQueryValueExA( hKey, driveValue, NULL, NULL, (LPBYTE)buffer, &size ))
{
WINE_TRACE("Got type '%s' for %s\n", buffer, driveValue );
if (!strcasecmp( buffer, "hd" )) ret = DRIVE_FIXED;
else if (!strcasecmp( buffer, "network" )) ret = DRIVE_REMOTE;
else if (!strcasecmp( buffer, "floppy" )) ret = DRIVE_REMOVABLE;
else if (!strcasecmp( buffer, "cdrom" )) ret = DRIVE_CDROM;
}
RegCloseKey(hKey);
}
return ret;
}
static void set_drive_label( char letter, const char *label )
{
char device[] = "a:\\"; /* SetVolumeLabel() requires a trailing slash */
device[0] = letter;
if(!SetVolumeLabel(device, label))
{
WINE_WARN("unable to set volume label for devicename of '%s', label of '%s'\n",
device, label);
PRINTERROR();
}
else
{
WINE_TRACE(" set volume label for devicename of '%s', label of '%s'\n",
device, label);
}
}
/* set the drive serial number via a .windows-serial file */
static void set_drive_serial( char letter, const char *serial )
{
char filename[] = "a:\\.windows-serial";
HANDLE hFile;
filename[0] = letter;
WINE_TRACE("Putting serial number of '%s' into file '%s'\n", serial, filename);
hFile = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile != INVALID_HANDLE_VALUE)
{
DWORD w;
WriteFile(hFile, serial, strlen(serial), &w, NULL);
WriteFile(hFile, "\n", 1, &w, NULL);
CloseHandle(hFile);
}
}
#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;
const char *config_dir = wine_get_config_dir();
char *path;
WINE_TRACE("\n");
/* 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;
HeapFree(GetProcessHeap(), 0, drives[i].unixpath);
drives[i].unixpath = NULL;
HeapFree(GetProcessHeap(), 0, drives[i].label);
drives[i].label = NULL;
HeapFree(GetProcessHeap(), 0, drives[i].serial);
drives[i].serial = NULL;
}
/* 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%X'\n", serial);
/* build rootpath for GetDriveType() */
lstrcpynA(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;
}
/* QueryDosDevice() requires no trailing backslash */
lstrcpynA(simplepath, devices, 3);
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), "%X", serial);
WINE_TRACE("serialstr: '%s'\n", serialstr);
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add_drive(*devices, targetpath, volname, serialstr, get_drive_type(devices[0]) );
len -= strlen(devices);
devices += strlen(devices);
/* skip over any nulls */
while ((*devices == 0) && (len))
{
len--;
devices++;
}
drivecount++;
}
/* Find all the broken symlinks we might have and add them as well. */
len = strlen(config_dir) + sizeof("/dosdevices/a:");
if (!(path = HeapAlloc(GetProcessHeap(), 0, len)))
return;
strcpy(path, config_dir);
strcat(path, "/dosdevices/a:");
for (i = 0; i < 26; i++)
{
char buff[MAX_PATH];
struct stat st;
int cnt;
if (drives[i].in_use) continue;
path[len - 3] = 'a' + i;
if (lstat(path, &st) == -1 || !S_ISLNK(st.st_mode)) continue;
if ((cnt = readlink(path, buff, sizeof(buff))) == -1) continue;
buff[cnt] = '\0';
WINE_TRACE("found broken symlink %s -> %s\n", path, buff);
add_drive('A' + i, buff, "", "0", DRIVE_UNKNOWN);
drivecount++;
}
WINE_TRACE("found %d drives\n", drivecount);
HeapFree(GetProcessHeap(), 0, path);
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 */
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void apply_drive_changes(void)
{
int i;
CHAR devicename[4];
CHAR targetpath[256];
BOOL foundDrive;
CHAR volumeNameBuffer[512];
DWORD serialNumber;
DWORD maxComponentLength;
DWORD fileSystemFlags;
CHAR fileSystemName[128];
char newSerialNumberText[32];
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;
volumeNameBuffer[0] = 0;
serialNumber = 0;
snprintf(devicename, sizeof(devicename), "%c:", 'A' + i);
/* get a drive */
if(QueryDosDevice(devicename, targetpath, sizeof(targetpath)))
{
char *cursor;
/* correct the slashes in the path to be UNIX style */
while ((cursor = strchr(targetpath, '\\'))) *cursor = '/';
foundDrive = TRUE;
}
/* if we found a drive and have a drive then compare things */
if(foundDrive && drives[i].in_use)
{
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);
PRINTERROR();
volumeNameBuffer[0] = '\0';
}
WINE_TRACE(" current path: '%s', new path: '%s'\n",
targetpath, drives[i].unixpath);
/* compare to what we have */
/* do we have the same targetpath? */
if(strcmp(drives[i].unixpath, targetpath))
{
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);
}
set_drive_type( drives[i].letter, DRIVE_UNKNOWN );
continue;
}
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)
{
/* 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);
}
}
if (drives[i].label && strcmp(drives[i].label, volumeNameBuffer))
set_drive_label( drives[i].letter, drives[i].label );
snprintf(newSerialNumberText, sizeof(newSerialNumberText), "%X", serialNumber);
if (drives[i].serial && drives[i].serial[0] && strcmp(drives[i].serial, newSerialNumberText))
set_drive_serial( drives[i].letter, drives[i].serial );
set_drive_type( drives[i].letter, drives[i].type );
}
}