/* * DOS drives handling functions * * Copyright 1993 Erik Bos * Copyright 1996 Alexandre Julliard */ #include "config.h" #include #include #include #include #include #include #include #include #include #ifdef HAVE_SYS_PARAM_H # include #endif #ifdef STATFS_DEFINED_BY_SYS_VFS # include #else # ifdef STATFS_DEFINED_BY_SYS_MOUNT # include # else # ifdef STATFS_DEFINED_BY_SYS_STATFS # include # endif # endif #endif #include "winbase.h" #include "wine/winbase16.h" /* for GetCurrentTask */ #include "wine/winestring.h" /* for lstrcpyAtoW */ #include "winerror.h" #include "drive.h" #include "file.h" #include "heap.h" #include "msdos.h" #include "options.h" #include "task.h" #include "debug.h" DECLARE_DEBUG_CHANNEL(dosfs) DECLARE_DEBUG_CHANNEL(file) typedef struct { char *root; /* root dir in Unix format without trailing / */ char *dos_cwd; /* cwd in DOS format without leading or trailing \ */ char *unix_cwd; /* cwd in Unix format without leading or trailing / */ char *device; /* raw device path */ char label[12]; /* drive label */ DWORD serial; /* drive serial number */ DRIVETYPE type; /* drive type */ UINT flags; /* drive flags */ dev_t dev; /* unix device number */ ino_t ino; /* unix inode number */ } DOSDRIVE; static const char * const DRIVE_Types[] = { "floppy", /* TYPE_FLOPPY */ "hd", /* TYPE_HD */ "cdrom", /* TYPE_CDROM */ "network" /* TYPE_NETWORK */ }; /* Known filesystem types */ typedef struct { const char *name; UINT flags; } FS_DESCR; static const FS_DESCR DRIVE_Filesystems[] = { { "unix", DRIVE_CASE_SENSITIVE | DRIVE_CASE_PRESERVING }, { "msdos", DRIVE_SHORT_NAMES }, { "dos", DRIVE_SHORT_NAMES }, { "fat", DRIVE_SHORT_NAMES }, { "vfat", DRIVE_CASE_PRESERVING }, { "win95", DRIVE_CASE_PRESERVING }, { NULL, 0 } }; static DOSDRIVE DOSDrives[MAX_DOS_DRIVES]; static int DRIVE_CurDrive = -1; static HTASK16 DRIVE_LastTask = 0; /*********************************************************************** * DRIVE_GetDriveType */ static DRIVETYPE DRIVE_GetDriveType( const char *name ) { char buffer[20]; int i; PROFILE_GetWineIniString( name, "Type", "hd", buffer, sizeof(buffer) ); for (i = 0; i < sizeof(DRIVE_Types)/sizeof(DRIVE_Types[0]); i++) { if (!strcasecmp( buffer, DRIVE_Types[i] )) return (DRIVETYPE)i; } MSG("%s: unknown type '%s', defaulting to 'hd'.\n", name, buffer ); return TYPE_HD; } /*********************************************************************** * DRIVE_GetFSFlags */ static UINT DRIVE_GetFSFlags( const char *name, const char *value ) { const FS_DESCR *descr; for (descr = DRIVE_Filesystems; descr->name; descr++) if (!strcasecmp( value, descr->name )) return descr->flags; MSG("%s: unknown filesystem type '%s', defaulting to 'win95'.\n", name, value ); return DRIVE_CASE_PRESERVING; } /*********************************************************************** * DRIVE_Init */ int DRIVE_Init(void) { int i, len, count = 0; char name[] = "Drive A"; char path[MAX_PATHNAME_LEN]; char buffer[80]; struct stat drive_stat_buffer; char *p; DOSDRIVE *drive; for (i = 0, drive = DOSDrives; i < MAX_DOS_DRIVES; i++, name[6]++, drive++) { PROFILE_GetWineIniString( name, "Path", "", path, sizeof(path)-1 ); if (path[0]) { p = path + strlen(path) - 1; while ((p > path) && ((*p == '/') || (*p == '\\'))) *p-- = '\0'; if (!path[0]) strcpy( path, "/" ); if (stat( path, &drive_stat_buffer )) { MSG("Could not stat %s, ignoring drive %c:\n", path, 'A' + i ); continue; } if (!S_ISDIR(drive_stat_buffer.st_mode)) { MSG("%s is not a directory, ignoring drive %c:\n", path, 'A' + i ); continue; } drive->root = HEAP_strdupA( SystemHeap, 0, path ); drive->dos_cwd = HEAP_strdupA( SystemHeap, 0, "" ); drive->unix_cwd = HEAP_strdupA( SystemHeap, 0, "" ); drive->type = DRIVE_GetDriveType( name ); drive->device = NULL; drive->flags = 0; drive->dev = drive_stat_buffer.st_dev; drive->ino = drive_stat_buffer.st_ino; /* Get the drive label */ PROFILE_GetWineIniString( name, "Label", name, drive->label, 12 ); if ((len = strlen(drive->label)) < 11) { /* Pad label with spaces */ memset( drive->label + len, ' ', 11 - len ); drive->label[12] = '\0'; } /* Get the serial number */ PROFILE_GetWineIniString( name, "Serial", "12345678", buffer, sizeof(buffer) ); drive->serial = strtoul( buffer, NULL, 16 ); /* Get the filesystem type */ PROFILE_GetWineIniString( name, "Filesystem", "win95", buffer, sizeof(buffer) ); drive->flags = DRIVE_GetFSFlags( name, buffer ); /* Get the device */ PROFILE_GetWineIniString( name, "Device", "", buffer, sizeof(buffer) ); if (buffer[0]) drive->device = HEAP_strdupA( SystemHeap, 0, buffer ); /* Make the first hard disk the current drive */ if ((DRIVE_CurDrive == -1) && (drive->type == TYPE_HD)) DRIVE_CurDrive = i; count++; TRACE(dosfs, "%s: path=%s type=%s label='%s' serial=%08lx flags=%08x dev=%x ino=%x\n", name, path, DRIVE_Types[drive->type], drive->label, drive->serial, drive->flags, (int)drive->dev, (int)drive->ino ); } else WARN(dosfs, "%s: not defined\n", name ); } if (!count) { MSG("Warning: no valid DOS drive found, check your configuration file.\n" ); /* Create a C drive pointing to Unix root dir */ DOSDrives[2].root = HEAP_strdupA( SystemHeap, 0, "/" ); DOSDrives[2].dos_cwd = HEAP_strdupA( SystemHeap, 0, "" ); DOSDrives[2].unix_cwd = HEAP_strdupA( SystemHeap, 0, "" ); strcpy( DOSDrives[2].label, "Drive C " ); DOSDrives[2].serial = 0x12345678; DOSDrives[2].type = TYPE_HD; DOSDrives[2].flags = 0; DRIVE_CurDrive = 2; } /* Make sure the current drive is valid */ if (DRIVE_CurDrive == -1) { for (i = 0, drive = DOSDrives; i < MAX_DOS_DRIVES; i++, drive++) { if (drive->root && !(drive->flags & DRIVE_DISABLED)) { DRIVE_CurDrive = i; break; } } } return 1; } /*********************************************************************** * DRIVE_IsValid */ int DRIVE_IsValid( int drive ) { if ((drive < 0) || (drive >= MAX_DOS_DRIVES)) return 0; return (DOSDrives[drive].root && !(DOSDrives[drive].flags & DRIVE_DISABLED)); } /*********************************************************************** * DRIVE_GetCurrentDrive */ int DRIVE_GetCurrentDrive(void) { TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() ); if (pTask && (pTask->curdrive & 0x80)) return pTask->curdrive & ~0x80; return DRIVE_CurDrive; } /*********************************************************************** * DRIVE_SetCurrentDrive */ int DRIVE_SetCurrentDrive( int drive ) { TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() ); if (!DRIVE_IsValid( drive )) { SetLastError( ERROR_INVALID_DRIVE ); return 0; } TRACE(dosfs, "%c:\n", 'A' + drive ); DRIVE_CurDrive = drive; if (pTask) pTask->curdrive = drive | 0x80; return 1; } /*********************************************************************** * DRIVE_FindDriveRoot * * Find a drive for which the root matches the begginning of the given path. * This can be used to translate a Unix path into a drive + DOS path. * Return value is the drive, or -1 on error. On success, path is modified * to point to the beginning of the DOS path. */ int DRIVE_FindDriveRoot( const char **path ) { /* idea: check at all '/' positions. * If the device and inode of that path is identical with the * device and inode of the current drive then we found a solution. * If there is another drive pointing to a deeper position in * the file tree, we want to find that one, not the earlier solution. */ int drive, rootdrive = -1; char buffer[MAX_PATHNAME_LEN]; char *next = buffer; const char *p = *path; struct stat st; strcpy( buffer, "/" ); for (;;) { if (stat( buffer, &st ) || !S_ISDIR( st.st_mode )) break; /* Find the drive */ for (drive = 0; drive < MAX_DOS_DRIVES; drive++) { if (!DOSDrives[drive].root || (DOSDrives[drive].flags & DRIVE_DISABLED)) continue; if ((DOSDrives[drive].dev == st.st_dev) && (DOSDrives[drive].ino == st.st_ino)) { rootdrive = drive; *path = p; } } /* Get the next path component */ *next++ = '/'; while ((*p == '/') || (*p == '\\')) p++; if (!*p) break; while (!IS_END_OF_NAME(*p)) *next++ = *p++; *next = 0; } *next = 0; if (rootdrive != -1) TRACE(dosfs, "%s -> drive %c:, root='%s', name='%s'\n", buffer, 'A' + rootdrive, DOSDrives[rootdrive].root, *path ); return rootdrive; } /*********************************************************************** * DRIVE_GetRoot */ const char * DRIVE_GetRoot( int drive ) { if (!DRIVE_IsValid( drive )) return NULL; return DOSDrives[drive].root; } /*********************************************************************** * DRIVE_GetDosCwd */ const char * DRIVE_GetDosCwd( int drive ) { TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() ); if (!DRIVE_IsValid( drive )) return NULL; /* Check if we need to change the directory to the new task. */ if (pTask && (pTask->curdrive & 0x80) && /* The task drive is valid */ ((pTask->curdrive & ~0x80) == drive) && /* and it's the one we want */ (DRIVE_LastTask != GetCurrentTask())) /* and the task changed */ { /* Perform the task-switch */ if (!DRIVE_Chdir( drive, pTask->curdir )) DRIVE_Chdir( drive, "\\" ); DRIVE_LastTask = GetCurrentTask(); } return DOSDrives[drive].dos_cwd; } /*********************************************************************** * DRIVE_GetUnixCwd */ const char * DRIVE_GetUnixCwd( int drive ) { TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() ); if (!DRIVE_IsValid( drive )) return NULL; /* Check if we need to change the directory to the new task. */ if (pTask && (pTask->curdrive & 0x80) && /* The task drive is valid */ ((pTask->curdrive & ~0x80) == drive) && /* and it's the one we want */ (DRIVE_LastTask != GetCurrentTask())) /* and the task changed */ { /* Perform the task-switch */ if (!DRIVE_Chdir( drive, pTask->curdir )) DRIVE_Chdir( drive, "\\" ); DRIVE_LastTask = GetCurrentTask(); } return DOSDrives[drive].unix_cwd; } /*********************************************************************** * DRIVE_GetLabel */ const char * DRIVE_GetLabel( int drive ) { if (!DRIVE_IsValid( drive )) return NULL; return DOSDrives[drive].label; } /*********************************************************************** * DRIVE_GetSerialNumber */ DWORD DRIVE_GetSerialNumber( int drive ) { if (!DRIVE_IsValid( drive )) return 0; return DOSDrives[drive].serial; } /*********************************************************************** * DRIVE_SetSerialNumber */ int DRIVE_SetSerialNumber( int drive, DWORD serial ) { if (!DRIVE_IsValid( drive )) return 0; DOSDrives[drive].serial = serial; return 1; } /*********************************************************************** * DRIVE_GetType */ DRIVETYPE DRIVE_GetType( int drive ) { if (!DRIVE_IsValid( drive )) return TYPE_INVALID; return DOSDrives[drive].type; } /*********************************************************************** * DRIVE_GetFlags */ UINT DRIVE_GetFlags( int drive ) { if ((drive < 0) || (drive >= MAX_DOS_DRIVES)) return 0; return DOSDrives[drive].flags; } /*********************************************************************** * DRIVE_Chdir */ int DRIVE_Chdir( int drive, const char *path ) { DOS_FULL_NAME full_name; char buffer[MAX_PATHNAME_LEN]; LPSTR unix_cwd; BY_HANDLE_FILE_INFORMATION info; TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() ); strcpy( buffer, "A:" ); buffer[0] += drive; TRACE(dosfs, "(%c:,%s)\n", buffer[0], path ); lstrcpynA( buffer + 2, path, sizeof(buffer) - 2 ); if (!DOSFS_GetFullName( buffer, TRUE, &full_name )) return 0; if (!FILE_Stat( full_name.long_name, &info )) return 0; if (!(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) { SetLastError( ERROR_FILE_NOT_FOUND ); return 0; } unix_cwd = full_name.long_name + strlen( DOSDrives[drive].root ); while (*unix_cwd == '/') unix_cwd++; TRACE(dosfs, "(%c:): unix_cwd=%s dos_cwd=%s\n", 'A' + drive, unix_cwd, full_name.short_name + 3 ); HeapFree( SystemHeap, 0, DOSDrives[drive].dos_cwd ); HeapFree( SystemHeap, 0, DOSDrives[drive].unix_cwd ); DOSDrives[drive].dos_cwd = HEAP_strdupA( SystemHeap, 0, full_name.short_name + 3 ); DOSDrives[drive].unix_cwd = HEAP_strdupA( SystemHeap, 0, unix_cwd ); if (pTask && (pTask->curdrive & 0x80) && ((pTask->curdrive & ~0x80) == drive)) { lstrcpynA( pTask->curdir, full_name.short_name + 2, sizeof(pTask->curdir) ); DRIVE_LastTask = GetCurrentTask(); } return 1; } /*********************************************************************** * DRIVE_Disable */ int DRIVE_Disable( int drive ) { if ((drive < 0) || (drive >= MAX_DOS_DRIVES) || !DOSDrives[drive].root) { SetLastError( ERROR_INVALID_DRIVE ); return 0; } DOSDrives[drive].flags |= DRIVE_DISABLED; return 1; } /*********************************************************************** * DRIVE_Enable */ int DRIVE_Enable( int drive ) { if ((drive < 0) || (drive >= MAX_DOS_DRIVES) || !DOSDrives[drive].root) { SetLastError( ERROR_INVALID_DRIVE ); return 0; } DOSDrives[drive].flags &= ~DRIVE_DISABLED; return 1; } /*********************************************************************** * DRIVE_SetLogicalMapping */ int DRIVE_SetLogicalMapping ( int existing_drive, int new_drive ) { /* If new_drive is already valid, do nothing and return 0 otherwise, copy DOSDrives[existing_drive] to DOSDrives[new_drive] */ DOSDRIVE *old, *new; old = DOSDrives + existing_drive; new = DOSDrives + new_drive; if ((existing_drive < 0) || (existing_drive >= MAX_DOS_DRIVES) || !old->root || (new_drive < 0) || (new_drive >= MAX_DOS_DRIVES)) { SetLastError( ERROR_INVALID_DRIVE ); return 0; } if ( new->root ) { TRACE(dosfs, "Can\'t map drive %c to drive %c - " "drive %c already exists\n", 'A' + existing_drive, 'A' + new_drive, 'A' + new_drive ); /* it is already mapped there, so return success */ if (!strcmp(old->root,new->root)) return 1; return 0; } new->root = HEAP_strdupA( SystemHeap, 0, old->root ); new->dos_cwd = HEAP_strdupA( SystemHeap, 0, old->dos_cwd ); new->unix_cwd = HEAP_strdupA( SystemHeap, 0, old->unix_cwd ); memcpy ( new->label, old->label, 12 ); new->serial = old->serial; new->type = old->type; new->flags = old->flags; new->dev = old->dev; new->ino = old->ino; TRACE(dosfs, "Drive %c is now equal to drive %c\n", 'A' + new_drive, 'A' + existing_drive ); return 1; } /*********************************************************************** * DRIVE_OpenDevice * * Open the drive raw device and return a Unix fd (or -1 on error). */ int DRIVE_OpenDevice( int drive, int flags ) { if (!DRIVE_IsValid( drive )) return -1; return open( DOSDrives[drive].device, flags ); } /*********************************************************************** * DRIVE_RawRead * * Read raw sectors from a device */ int DRIVE_RawRead(BYTE drive, DWORD begin, DWORD nr_sect, BYTE *dataptr, BOOL fake_success) { int fd; if ((fd = DRIVE_OpenDevice( drive, O_RDONLY )) != -1) { lseek( fd, begin * 512, SEEK_SET ); /* FIXME: check errors */ read( fd, dataptr, nr_sect * 512 ); close( fd ); } else { memset(dataptr, 0, nr_sect * 512); if (fake_success) { if (begin == 0 && nr_sect > 1) *(dataptr + 512) = 0xf8; if (begin == 1) *dataptr = 0xf8; } else return 0; } return 1; } /*********************************************************************** * DRIVE_RawWrite * * Write raw sectors to a device */ int DRIVE_RawWrite(BYTE drive, DWORD begin, DWORD nr_sect, BYTE *dataptr, BOOL fake_success) { int fd; if ((fd = DRIVE_OpenDevice( drive, O_RDONLY )) != -1) { lseek( fd, begin * 512, SEEK_SET ); /* FIXME: check errors */ write( fd, dataptr, nr_sect * 512 ); close( fd ); } else if (!(fake_success)) return 0; return 1; } /*********************************************************************** * DRIVE_GetFreeSpace */ static int DRIVE_GetFreeSpace( int drive, PULARGE_INTEGER size, PULARGE_INTEGER available ) { struct statfs info; unsigned long long bigsize,bigavail=0; if (!DRIVE_IsValid(drive)) { SetLastError( ERROR_INVALID_DRIVE ); return 0; } /* FIXME: add autoconf check for this */ #if defined(__svr4__) || defined(_SCO_DS) || defined(__sun) if (statfs( DOSDrives[drive].root, &info, 0, 0) < 0) #else if (statfs( DOSDrives[drive].root, &info) < 0) #endif { FILE_SetDosError(); WARN(dosfs, "cannot do statfs(%s)\n", DOSDrives[drive].root); return 0; } bigsize = (unsigned long long)info.f_bsize * (unsigned long long)info.f_blocks; #ifdef STATFS_HAS_BAVAIL bigavail = (unsigned long long)info.f_bavail * (unsigned long long)info.f_bsize; #else # ifdef STATFS_HAS_BFREE bigavail = (unsigned long long)info.f_bfree * (unsigned long long)info.f_bsize; # else # error "statfs has no bfree/bavail member!" # endif #endif size->LowPart = (DWORD)bigsize; size->HighPart = (DWORD)(bigsize>>32); available->LowPart = (DWORD)bigavail; available->HighPart = (DWORD)(bigavail>>32); return 1; } /*********************************************************************** * GetDiskFreeSpace16 (KERNEL.422) */ BOOL16 WINAPI GetDiskFreeSpace16( LPCSTR root, LPDWORD cluster_sectors, LPDWORD sector_bytes, LPDWORD free_clusters, LPDWORD total_clusters ) { return GetDiskFreeSpaceA( root, cluster_sectors, sector_bytes, free_clusters, total_clusters ); } /*********************************************************************** * GetDiskFreeSpace32A (KERNEL32.206) * * Fails if expression resulting from current drive's dir and "root" * is not a root dir of the target drive. * * UNDOC: setting some LPDWORDs to NULL is perfectly possible * if the corresponding info is unneeded. * * FIXME: needs to support UNC names from Win95 OSR2 on. * * Behaviour under Win95a: * CurrDir root result * "E:\\TEST" "E:" FALSE * "E:\\" "E:" TRUE * "E:\\" "E" FALSE * "E:\\" "\\" TRUE * "E:\\TEST" "\\" TRUE * "E:\\TEST" ":\\" FALSE * "E:\\TEST" "E:\\" TRUE * "E:\\TEST" "" FALSE * "E:\\" "" FALSE (!) * "E:\\" 0x0 TRUE * "E:\\TEST" 0x0 TRUE (!) * "E:\\TEST" "C:" TRUE (when CurrDir of "C:" set to "\\") * "E:\\TEST" "C:" FALSE (when CurrDir of "C:" set to "\\TEST") */ BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors, LPDWORD sector_bytes, LPDWORD free_clusters, LPDWORD total_clusters ) { int drive; ULARGE_INTEGER size,available; LPCSTR path; DWORD cluster_sec; if ((!root) || (root == "\\")) drive = DRIVE_GetCurrentDrive(); else if ( (strlen(root) >= 2) && (root[1] == ':')) /* root contains drive tag */ { drive = toupper(root[0]) - 'A'; path = &root[2]; if (path[0] == '\0') path = DRIVE_GetDosCwd(drive); else if (path[0] == '\\') path++; if (strlen(path)) /* oops, we are in a subdir */ return FALSE; } else return FALSE; if (!DRIVE_GetFreeSpace(drive, &size, &available)) return FALSE; /* Cap the size and available at 2GB as per specs. */ if ((size.HighPart) ||(size.LowPart > 0x7fffffff)) { size.HighPart = 0; size.LowPart = 0x7fffffff; } if ((available.HighPart) ||(available.LowPart > 0x7fffffff)) { available.HighPart =0; available.LowPart = 0x7fffffff; } if (DRIVE_GetType(drive)==TYPE_CDROM) { if (sector_bytes) *sector_bytes = 2048; size.LowPart /= 2048; available.LowPart /= 2048; } else { if (sector_bytes) *sector_bytes = 512; size.LowPart /= 512; available.LowPart /= 512; } /* fixme: probably have to adjust those variables too for CDFS */ cluster_sec = 1; while (cluster_sec * 65536 < size.LowPart) cluster_sec *= 2; if (cluster_sectors) *cluster_sectors = cluster_sec; if (free_clusters) *free_clusters = available.LowPart / cluster_sec; if (total_clusters) *total_clusters = size.LowPart / cluster_sec; return TRUE; } /*********************************************************************** * GetDiskFreeSpace32W (KERNEL32.207) */ BOOL WINAPI GetDiskFreeSpaceW( LPCWSTR root, LPDWORD cluster_sectors, LPDWORD sector_bytes, LPDWORD free_clusters, LPDWORD total_clusters ) { LPSTR xroot; BOOL ret; xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, root); ret = GetDiskFreeSpaceA( xroot,cluster_sectors, sector_bytes, free_clusters, total_clusters ); HeapFree( GetProcessHeap(), 0, xroot ); return ret; } /*********************************************************************** * GetDiskFreeSpaceEx32A (KERNEL32.871) */ BOOL WINAPI GetDiskFreeSpaceExA( LPCSTR root, PULARGE_INTEGER avail, PULARGE_INTEGER total, PULARGE_INTEGER totalfree) { int drive; ULARGE_INTEGER size,available; if (!root) drive = DRIVE_GetCurrentDrive(); else { if ((root[1]) && ((root[1] != ':') || (root[2] != '\\'))) { WARN(dosfs, "invalid root '%s'\n", root ); return FALSE; } drive = toupper(root[0]) - 'A'; } if (!DRIVE_GetFreeSpace(drive, &size, &available)) return FALSE; /*FIXME: Do we have the number of bytes available to the user? */ if (totalfree) { totalfree->HighPart = size.HighPart; totalfree->LowPart = size.LowPart ; } if (avail) { avail->HighPart = available.HighPart; avail->LowPart = available.LowPart ; } return TRUE; } /*********************************************************************** * GetDiskFreeSpaceEx32W (KERNEL32.873) */ BOOL WINAPI GetDiskFreeSpaceExW( LPCWSTR root, PULARGE_INTEGER avail, PULARGE_INTEGER total, PULARGE_INTEGER totalfree) { LPSTR xroot; BOOL ret; xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, root); ret = GetDiskFreeSpaceExA( xroot, avail, total, totalfree); HeapFree( GetProcessHeap(), 0, xroot ); return ret; } /*********************************************************************** * GetDriveType16 (KERNEL.136) * This functions returns the drivetype of a drive in Win16. * Note that it returns DRIVE_REMOTE for CD-ROMs, since MSCDEX uses the * remote drive API. The returnvalue DRIVE_REMOTE for CD-ROMs has been * verified on Win3.11 and Windows 95. Some programs rely on it, so don't * do any pseudo-clever changes. * * RETURNS * drivetype DRIVE_xxx */ UINT16 WINAPI GetDriveType16( UINT16 drive /* [in] number (NOT letter) of drive */ ) { TRACE(dosfs, "(%c:)\n", 'A' + drive ); switch(DRIVE_GetType(drive)) { case TYPE_FLOPPY: return DRIVE_REMOVABLE; case TYPE_HD: return DRIVE_FIXED; case TYPE_CDROM: return DRIVE_REMOTE; case TYPE_NETWORK: return DRIVE_REMOTE; case TYPE_INVALID: default: return DRIVE_CANNOTDETERMINE; } } /*********************************************************************** * GetDriveType32A (KERNEL32.208) * * Returns the type of the disk drive specified. If root is NULL the * root of the current directory is used. * * RETURNS * * Type of drive (from Win32 SDK): * * DRIVE_UNKNOWN unable to find out anything about the drive * DRIVE_NO_ROOT_DIR nonexistand root dir * DRIVE_REMOVABLE the disk can be removed from the machine * DRIVE_FIXED the disk can not be removed from the machine * DRIVE_REMOTE network disk * DRIVE_CDROM CDROM drive * DRIVE_RAMDISK virtual disk in ram * * DRIVE_DOESNOTEXIST XXX Not valid return value * DRIVE_CANNOTDETERMINE XXX Not valid return value * * BUGS * * Currently returns DRIVE_DOESNOTEXIST and DRIVE_CANNOTDETERMINE * when it really should return DRIVE_NO_ROOT_DIR and DRIVE_UNKNOWN. * Why where the former defines used? * * DRIVE_RAMDISK is unsupported. */ UINT WINAPI GetDriveTypeA(LPCSTR root /* String describing drive */) { int drive; TRACE(dosfs, "(%s)\n", debugstr_a(root)); if (NULL == root) drive = DRIVE_GetCurrentDrive(); else { if ((root[1]) && (root[1] != ':')) { WARN(dosfs, "invalid root '%s'\n", debugstr_a(root)); return DRIVE_DOESNOTEXIST; } drive = toupper(root[0]) - 'A'; } switch(DRIVE_GetType(drive)) { case TYPE_FLOPPY: return DRIVE_REMOVABLE; case TYPE_HD: return DRIVE_FIXED; case TYPE_CDROM: return DRIVE_CDROM; case TYPE_NETWORK: return DRIVE_REMOTE; case TYPE_INVALID: return DRIVE_DOESNOTEXIST; default: return DRIVE_CANNOTDETERMINE; } } /*********************************************************************** * GetDriveType32W (KERNEL32.209) */ UINT WINAPI GetDriveTypeW( LPCWSTR root ) { LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, root ); UINT ret = GetDriveTypeA( xpath ); HeapFree( GetProcessHeap(), 0, xpath ); return ret; } /*********************************************************************** * GetCurrentDirectory16 (KERNEL.411) */ UINT16 WINAPI GetCurrentDirectory16( UINT16 buflen, LPSTR buf ) { return (UINT16)GetCurrentDirectoryA( buflen, buf ); } /*********************************************************************** * GetCurrentDirectory32A (KERNEL32.196) * * Returns "X:\\path\\etc\\". * * Despite the API description, return required length including the * terminating null when buffer too small. This is the real behaviour. */ UINT WINAPI GetCurrentDirectoryA( UINT buflen, LPSTR buf ) { UINT ret; const char *s = DRIVE_GetDosCwd( DRIVE_GetCurrentDrive() ); assert(s); ret = strlen(s) + 3; /* length of WHOLE current directory */ if (ret >= buflen) return ret + 1; lstrcpynA( buf, "A:\\", MIN( 4, buflen ) ); if (buflen) buf[0] += DRIVE_GetCurrentDrive(); if (buflen > 3) lstrcpynA( buf + 3, s, buflen - 3 ); return ret; } /*********************************************************************** * GetCurrentDirectory32W (KERNEL32.197) */ UINT WINAPI GetCurrentDirectoryW( UINT buflen, LPWSTR buf ) { LPSTR xpath = HeapAlloc( GetProcessHeap(), 0, buflen+1 ); UINT ret = GetCurrentDirectoryA( buflen, xpath ); lstrcpyAtoW( buf, xpath ); HeapFree( GetProcessHeap(), 0, xpath ); return ret; } /*********************************************************************** * SetCurrentDirectory (KERNEL.412) */ BOOL16 WINAPI SetCurrentDirectory16( LPCSTR dir ) { return SetCurrentDirectoryA( dir ); } /*********************************************************************** * SetCurrentDirectory32A (KERNEL32.479) */ BOOL WINAPI SetCurrentDirectoryA( LPCSTR dir ) { int olddrive, drive = DRIVE_GetCurrentDrive(); if (!dir) { ERR(file,"(NULL)!\n"); return FALSE; } if (dir[0] && (dir[1]==':')) { drive = tolower( *dir ) - 'a'; dir += 2; } /* WARNING: we need to set the drive before the dir, as DRIVE_Chdir sets pTask->curdir only if pTask->curdrive is drive */ olddrive = drive; /* in case DRIVE_Chdir fails */ if (!(DRIVE_SetCurrentDrive( drive ))) return FALSE; /* FIXME: what about empty strings? Add a \\ ? */ if (!DRIVE_Chdir( drive, dir )) { DRIVE_SetCurrentDrive(olddrive); return FALSE; } return TRUE; } /*********************************************************************** * SetCurrentDirectory32W (KERNEL32.480) */ BOOL WINAPI SetCurrentDirectoryW( LPCWSTR dirW ) { LPSTR dir = HEAP_strdupWtoA( GetProcessHeap(), 0, dirW ); BOOL res = SetCurrentDirectoryA( dir ); HeapFree( GetProcessHeap(), 0, dir ); return res; } /*********************************************************************** * GetLogicalDriveStrings32A (KERNEL32.231) */ UINT WINAPI GetLogicalDriveStringsA( UINT len, LPSTR buffer ) { int drive, count; for (drive = count = 0; drive < MAX_DOS_DRIVES; drive++) if (DRIVE_IsValid(drive)) count++; if (count * 4 * sizeof(char) <= len) { LPSTR p = buffer; for (drive = 0; drive < MAX_DOS_DRIVES; drive++) if (DRIVE_IsValid(drive)) { *p++ = 'a' + drive; *p++ = ':'; *p++ = '\\'; *p++ = '\0'; } *p = '\0'; } return count * 4 * sizeof(char); } /*********************************************************************** * GetLogicalDriveStrings32W (KERNEL32.232) */ UINT WINAPI GetLogicalDriveStringsW( UINT len, LPWSTR buffer ) { int drive, count; for (drive = count = 0; drive < MAX_DOS_DRIVES; drive++) if (DRIVE_IsValid(drive)) count++; if (count * 4 * sizeof(WCHAR) <= len) { LPWSTR p = buffer; for (drive = 0; drive < MAX_DOS_DRIVES; drive++) if (DRIVE_IsValid(drive)) { *p++ = (WCHAR)('a' + drive); *p++ = (WCHAR)':'; *p++ = (WCHAR)'\\'; *p++ = (WCHAR)'\0'; } *p = (WCHAR)'\0'; } return count * 4 * sizeof(WCHAR); } /*********************************************************************** * GetLogicalDrives (KERNEL32.233) */ DWORD WINAPI GetLogicalDrives(void) { DWORD ret = 0; int drive; for (drive = 0; drive < MAX_DOS_DRIVES; drive++) if (DRIVE_IsValid(drive)) ret |= (1 << drive); return ret; } /*********************************************************************** * GetVolumeInformation32A (KERNEL32.309) */ BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label, DWORD label_len, DWORD *serial, DWORD *filename_len, DWORD *flags, LPSTR fsname, DWORD fsname_len ) { int drive; char *cp; /* FIXME, SetLastErrors missing */ if (!root) drive = DRIVE_GetCurrentDrive(); else { if ((root[1]) && (root[1] != ':')) { WARN(dosfs, "invalid root '%s'\n",root); return FALSE; } drive = toupper(root[0]) - 'A'; } if (!DRIVE_IsValid( drive )) return FALSE; if (label) { lstrcpynA( label, DRIVE_GetLabel(drive), label_len ); for (cp = label; *cp; cp++); while (cp != label && *(cp-1) == ' ') cp--; *cp = '\0'; } if (serial) *serial = DRIVE_GetSerialNumber(drive); /* Set the filesystem information */ /* Note: we only emulate a FAT fs at the present */ if (filename_len) { if (DOSDrives[drive].flags & DRIVE_SHORT_NAMES) *filename_len = 12; else *filename_len = 255; } if (flags) { *flags=0; if (DOSDrives[drive].flags & DRIVE_CASE_SENSITIVE) *flags|=FS_CASE_SENSITIVE; if (DOSDrives[drive].flags & DRIVE_CASE_PRESERVING) *flags|=FS_CASE_IS_PRESERVED ; } if (fsname) { /* Diablo checks that return code ... */ if (DRIVE_GetType(drive)==TYPE_CDROM) lstrcpynA( fsname, "CDFS", fsname_len ); else lstrcpynA( fsname, "FAT", fsname_len ); } return TRUE; } /*********************************************************************** * GetVolumeInformation32W (KERNEL32.310) */ BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label, DWORD label_len, DWORD *serial, DWORD *filename_len, DWORD *flags, LPWSTR fsname, DWORD fsname_len ) { LPSTR xroot = HEAP_strdupWtoA( GetProcessHeap(), 0, root ); LPSTR xvolname = label ? HeapAlloc(GetProcessHeap(),0,label_len) : NULL; LPSTR xfsname = fsname ? HeapAlloc(GetProcessHeap(),0,fsname_len) : NULL; BOOL ret = GetVolumeInformationA( xroot, xvolname, label_len, serial, filename_len, flags, xfsname, fsname_len ); if (ret) { if (label) lstrcpyAtoW( label, xvolname ); if (fsname) lstrcpyAtoW( fsname, xfsname ); } HeapFree( GetProcessHeap(), 0, xroot ); HeapFree( GetProcessHeap(), 0, xvolname ); HeapFree( GetProcessHeap(), 0, xfsname ); return ret; } BOOL WINAPI SetVolumeLabelA(LPCSTR rootpath,LPCSTR volname) { FIXME(dosfs,"(%s,%s),stub!\n",rootpath,volname); return TRUE; }