/* * Volume management functions * * Copyright 1993 Erik Bos * Copyright 1996, 2004 Alexandre Julliard * Copyright 1999 Petr Tomasek * Copyright 2000 Andreas Mohr * Copyright 2003 Eric Pouech * * 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 "config.h" #include "wine/port.h" #include #include #include #include "windef.h" #include "winbase.h" #include "winreg.h" #include "winnls.h" #include "winternl.h" #include "ntstatus.h" #include "winioctl.h" #include "ntddstor.h" #include "ntddcdrm.h" #include "kernel_private.h" #include "file.h" #include "wine/library.h" #include "wine/unicode.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(volume); #define SUPERBLOCK_SIZE 2048 #define CDFRAMES_PERSEC 75 #define CDFRAMES_PERMIN (CDFRAMES_PERSEC * 60) #define FRAME_OF_ADDR(a) ((a)[1] * CDFRAMES_PERMIN + (a)[2] * CDFRAMES_PERSEC + (a)[3]) #define FRAME_OF_TOC(toc, idx) FRAME_OF_ADDR((toc)->TrackData[(idx) - (toc)->FirstTrack].Address) #define GETWORD(buf,off) MAKEWORD(buf[(off)],buf[(off+1)]) #define GETLONG(buf,off) MAKELONG(GETWORD(buf,off),GETWORD(buf,off+2)) enum fs_type { FS_ERROR, /* error accessing the device */ FS_UNKNOWN, /* unknown file system */ FS_FAT1216, FS_FAT32, FS_ISO9660 }; /* return default device to use for serial ports */ /* result should not be more than 16 characters long */ static BOOL get_default_com_device( char *buffer, int num ) { if (!num || num > 9) return FALSE; #ifdef linux sprintf( buffer, "/dev/ttyS%d", num - 1 ); return TRUE; #else FIXME( "no known default for device com%d\n", num ); return FALSE; #endif } /* return default device to use for parallel ports */ /* result should not be more than 16 characters long */ static BOOL get_default_lpt_device( char *buffer, int num ) { if (!num || num > 9) return FALSE; #ifdef linux sprintf( buffer, "/dev/lp%d", num - 1 ); return TRUE; #else FIXME( "no known default for device lpt%d\n", num ); return FALSE; #endif } /* read a Unix symlink; returned buffer must be freed by caller */ static char *read_symlink( const char *path ) { char *buffer; int ret, size = 128; for (;;) { if (!(buffer = HeapAlloc( GetProcessHeap(), 0, size ))) { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return 0; } ret = readlink( path, buffer, size ); if (ret == -1) { FILE_SetDosError(); HeapFree( GetProcessHeap(), 0, buffer ); return 0; } if (ret != size) { buffer[ret] = 0; return buffer; } HeapFree( GetProcessHeap(), 0, buffer ); size *= 2; } } /* get the path of a dos device symlink in the $WINEPREFIX/dosdevices directory */ static char *get_dos_device_path( LPCWSTR name ) { const char *config_dir = wine_get_config_dir(); char *buffer, *dev; int i; if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(config_dir) + sizeof("/dosdevices/") + 5 ))) { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return NULL; } strcpy( buffer, config_dir ); strcat( buffer, "/dosdevices/" ); dev = buffer + strlen(buffer); /* no codepage conversion, DOS device names are ASCII anyway */ for (i = 0; i < 5; i++) if (!(dev[i] = (char)tolowerW(name[i]))) break; dev[5] = 0; return buffer; } /* create symlinks for the DOS drives; helper for VOLUME_CreateDevices */ static int create_drives(void) { WCHAR name[3], rootW[MAX_PATHNAME_LEN]; int i, count = 0; for (i = 0; i < 26; i++) { const char *root = DRIVE_GetRoot( i ); if (!root) continue; name[0] = 'a' + i; name[1] = ':'; name[2] = 0; if (MultiByteToWideChar( CP_UNIXCP, 0, root, -1, rootW, MAX_PATHNAME_LEN ) && DefineDosDeviceW( DDD_RAW_TARGET_PATH, name, rootW )) { MESSAGE( "Created symlink %s/dosdevices/%c: -> %s\n", wine_get_config_dir(), 'a' + i, root ); count++; } } return count; } /*********************************************************************** * VOLUME_CreateDevices * * Create the device files for the new device naming scheme. * Should go away after a transition period. */ void VOLUME_CreateDevices(void) { const char *config_dir = wine_get_config_dir(); char *buffer; int i, count = 0; if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(config_dir) + sizeof("/dosdevices") + 3 ))) return; strcpy( buffer, config_dir ); strcat( buffer, "/dosdevices" ); if (!mkdir( buffer, 0777 )) /* we created it, so now create the devices */ { HKEY hkey; DWORD dummy; OBJECT_ATTRIBUTES attr; UNICODE_STRING nameW; WCHAR *p, *devnameW; char tmp[128]; WCHAR com[5] = {'C','O','M','1',0}; WCHAR lpt[5] = {'L','P','T','1',0}; static const WCHAR serialportsW[] = {'M','a','c','h','i','n','e','\\', 'S','o','f','t','w','a','r','e','\\', 'W','i','n','e','\\','W','i','n','e','\\', 'C','o','n','f','i','g','\\', 'S','e','r','i','a','l','P','o','r','t','s',0}; static const WCHAR parallelportsW[] = {'M','a','c','h','i','n','e','\\', 'S','o','f','t','w','a','r','e','\\', 'W','i','n','e','\\','W','i','n','e','\\', 'C','o','n','f','i','g','\\', 'P','a','r','a','l','l','e','l','P','o','r','t','s',0}; attr.Length = sizeof(attr); attr.RootDirectory = 0; attr.ObjectName = &nameW; attr.Attributes = 0; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; RtlInitUnicodeString( &nameW, serialportsW ); if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) { RtlInitUnicodeString( &nameW, com ); for (i = 1; i <= 9; i++) { com[3] = '0' + i; if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy )) { devnameW = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data; if ((p = strchrW( devnameW, ',' ))) *p = 0; if (DefineDosDeviceW( DDD_RAW_TARGET_PATH, com, devnameW )) { char devname[32]; WideCharToMultiByte(CP_UNIXCP, 0, devnameW, -1, devname, sizeof(devname), NULL, NULL); MESSAGE( "Created symlink %s/dosdevices/com%d -> %s\n", config_dir, i, devname ); count++; } } } NtClose( hkey ); } RtlInitUnicodeString( &nameW, parallelportsW ); if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) { RtlInitUnicodeString( &nameW, lpt ); for (i = 1; i <= 9; i++) { lpt[3] = '0' + i; if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy )) { devnameW = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data; if ((p = strchrW( devnameW, ',' ))) *p = 0; if (DefineDosDeviceW( DDD_RAW_TARGET_PATH, lpt, devnameW )) { char devname[32]; WideCharToMultiByte(CP_UNIXCP, 0, devnameW, -1, devname, sizeof(devname), NULL, NULL); MESSAGE( "Created symlink %s/dosdevices/lpt%d -> %s\n", config_dir, i, devname ); count++; } } } NtClose( hkey ); } count += create_drives(); } else { struct stat st; int i; /* it is possible that the serial/parallel devices have been created but */ /* not the drives; check for at least one drive symlink to catch that case */ strcat( buffer, "/a:" ); for (i = 0; i < 26; i++) { buffer[strlen(buffer)-2] = 'a' + i; if (!lstat( buffer, &st )) break; } if (i == 26) count += create_drives(); } if (count) MESSAGE( "\nYou can now remove the [SerialPorts] and [ParallelPorts] sections\n" "in your configuration file, as well as the \"Path=\" definitions in\n" "the drive sections, they are replaced by the above symlinks.\n\n" ); HeapFree( GetProcessHeap(), 0, buffer ); } /****************************************************************** * VOLUME_OpenDevice */ HANDLE VOLUME_OpenDevice( LPCWSTR name, DWORD access, DWORD sharing, LPSECURITY_ATTRIBUTES sa, DWORD attributes ) { char *buffer, *dev; HANDLE ret; if (!(buffer = get_dos_device_path( name ))) return 0; dev = strrchr( buffer, '/' ) + 1; for (;;) { TRACE("trying %s\n", buffer ); ret = FILE_CreateFile( buffer, access, sharing, sa, OPEN_EXISTING, 0, 0, TRUE, DRIVE_FIXED ); if (ret || GetLastError() != ERROR_FILE_NOT_FOUND) break; if (!dev) break; /* now try some defaults for it */ if (!strcmp( dev, "aux" )) { strcpy( dev, "com1" ); continue; } if (!strcmp( dev, "prn" )) { strcpy( dev, "lpt1" ); continue; } if (!strcmp( dev, "nul" )) { strcpy( buffer, "/dev/null" ); dev = NULL; /* last try */ continue; } if (!strncmp( dev, "com", 3 ) && get_default_com_device( buffer, dev[3] - '0' )) { dev = NULL; /* last try */ continue; } if (!strncmp( dev, "lpt", 3 ) && get_default_lpt_device( buffer, dev[3] - '0' )) { dev = NULL; /* last try */ continue; } break; } if (!ret) ERR( "could not open device %s err %ld\n", debugstr_w(name), GetLastError() ); HeapFree( GetProcessHeap(), 0, buffer ); return ret; } /****************************************************************** * VOLUME_FindCdRomDataBestVoldesc */ static DWORD VOLUME_FindCdRomDataBestVoldesc( HANDLE handle ) { BYTE cur_vd_type, max_vd_type = 0; BYTE buffer[16]; DWORD size, offs, best_offs = 0, extra_offs = 0; for (offs = 0x8000; offs <= 0x9800; offs += 0x800) { /* if 'CDROM' occurs at position 8, this is a pre-iso9660 cd, and * the volume label is displaced forward by 8 */ if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs) break; if (!ReadFile( handle, buffer, sizeof(buffer), &size, NULL )) break; if (size != sizeof(buffer)) break; /* check for non-ISO9660 signature */ if (!memcmp( buffer + 11, "ROM", 3 )) extra_offs = 8; cur_vd_type = buffer[extra_offs]; if (cur_vd_type == 0xff) /* voldesc set terminator */ break; if (cur_vd_type > max_vd_type) { max_vd_type = cur_vd_type; best_offs = offs + extra_offs; } } return best_offs; } /*********************************************************************** * VOLUME_ReadFATSuperblock */ static enum fs_type VOLUME_ReadFATSuperblock( HANDLE handle, BYTE *buff ) { DWORD size; /* try a fixed disk, with a FAT partition */ if (SetFilePointer( handle, 0, NULL, FILE_BEGIN ) != 0 || !ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) || size != SUPERBLOCK_SIZE) return FS_ERROR; if (buff[0] == 0xE9 || (buff[0] == 0xEB && buff[2] == 0x90)) { /* guess which type of FAT we have */ unsigned int sz, nsect, nclust; sz = GETWORD(buff, 0x16); if (!sz) sz = GETLONG(buff, 0x24); nsect = GETWORD(buff, 0x13); if (!nsect) nsect = GETLONG(buff, 0x20); nsect -= GETWORD(buff, 0x0e) + buff[0x10] * sz + (GETWORD(buff, 0x11) * 32 + (GETWORD(buff, 0x0b) - 1)) / GETWORD(buff, 0x0b); nclust = nsect / buff[0x0d]; if (nclust < 65525) { if (buff[0x26] == 0x29 && !memcmp(buff+0x36, "FAT", 3)) { /* FIXME: do really all FAT have their name beginning with * "FAT" ? (At least FAT12, FAT16 and FAT32 have :) */ return FS_FAT1216; } } else if (!memcmp(buff+0x52, "FAT", 3)) return FS_FAT32; } return FS_UNKNOWN; } /*********************************************************************** * VOLUME_ReadCDSuperblock */ static enum fs_type VOLUME_ReadCDSuperblock( HANDLE handle, BYTE *buff ) { DWORD size, offs = VOLUME_FindCdRomDataBestVoldesc( handle ); if (!offs) return FS_UNKNOWN; if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs || !ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) || size != SUPERBLOCK_SIZE) return FS_ERROR; /* check for iso9660 present */ if (!memcmp(&buff[1], "CD001", 5)) return FS_ISO9660; return FS_UNKNOWN; } /************************************************************************** * VOLUME_GetSuperblockLabel */ static void VOLUME_GetSuperblockLabel( enum fs_type type, const BYTE *superblock, WCHAR *label, DWORD len ) { const BYTE *label_ptr = NULL; DWORD label_len; switch(type) { case FS_ERROR: case FS_UNKNOWN: label_len = 0; break; case FS_FAT1216: label_ptr = superblock + 0x2b; label_len = 11; break; case FS_FAT32: label_ptr = superblock + 0x47; label_len = 11; break; case FS_ISO9660: { BYTE ver = superblock[0x5a]; if (superblock[0x58] == 0x25 && superblock[0x59] == 0x2f && /* Unicode ID */ ((ver == 0x40) || (ver == 0x43) || (ver == 0x45))) { /* yippee, unicode */ int i; if (len > 17) len = 17; for (i = 0; i < len-1; i++) label[i] = (superblock[40+2*i] << 8) | superblock[41+2*i]; label[i] = 0; while (i && label[i-1] == ' ') label[--i] = 0; return; } label_ptr = superblock + 40; label_len = 32; break; } } if (label_len) RtlMultiByteToUnicodeN( label, (len-1) * sizeof(WCHAR), &label_len, label_ptr, label_len ); label_len /= sizeof(WCHAR); label[label_len] = 0; while (label_len && label[label_len-1] == ' ') label[--label_len] = 0; } /************************************************************************** * VOLUME_SetSuperblockLabel */ static BOOL VOLUME_SetSuperblockLabel( enum fs_type type, HANDLE handle, const WCHAR *label ) { BYTE label_data[11]; DWORD offset, len; switch(type) { case FS_FAT1216: offset = 0x2b; break; case FS_FAT32: offset = 0x47; break; default: SetLastError( ERROR_ACCESS_DENIED ); return FALSE; } RtlUnicodeToMultiByteN( label_data, sizeof(label_data), &len, label, strlenW(label) * sizeof(WCHAR) ); if (len < sizeof(label_data)) memset( label_data + len, ' ', sizeof(label_data) - len ); return (SetFilePointer( handle, offset, NULL, FILE_BEGIN ) == offset && WriteFile( handle, label_data, sizeof(label_data), &len, NULL )); } /************************************************************************** * VOLUME_GetSuperblockSerial */ static DWORD VOLUME_GetSuperblockSerial( enum fs_type type, const BYTE *superblock ) { switch(type) { case FS_ERROR: case FS_UNKNOWN: break; case FS_FAT1216: return GETLONG( superblock, 0x27 ); case FS_FAT32: return GETLONG( superblock, 0x33 ); case FS_ISO9660: { BYTE sum[4]; int i; sum[0] = sum[1] = sum[2] = sum[3] = 0; for (i = 0; i < 2048; i += 4) { /* DON'T optimize this into DWORD !! (breaks overflow) */ sum[0] += superblock[i+0]; sum[1] += superblock[i+1]; sum[2] += superblock[i+2]; sum[3] += superblock[i+3]; } /* * OK, another braindead one... argh. Just believe it. * Me$$ysoft chose to reverse the serial number in NT4/W2K. * It's true and nobody will ever be able to change it. */ if (GetVersion() & 0x80000000) return (sum[3] << 24) | (sum[2] << 16) | (sum[1] << 8) | sum[0]; else return (sum[0] << 24) | (sum[1] << 16) | (sum[2] << 8) | sum[3]; } } return 0; } /************************************************************************** * VOLUME_GetAudioCDSerial */ static DWORD VOLUME_GetAudioCDSerial( const CDROM_TOC *toc ) { DWORD serial = 0; int i; for (i = 0; i <= toc->LastTrack - toc->FirstTrack; i++) serial += ((toc->TrackData[i].Address[1] << 16) | (toc->TrackData[i].Address[2] << 8) | toc->TrackData[i].Address[3]); /* * dwStart, dwEnd collect the beginning and end of the disc respectively, in * frames. * There it is collected for correcting the serial when there are less than * 3 tracks. */ if (toc->LastTrack - toc->FirstTrack + 1 < 3) { DWORD dwStart = FRAME_OF_TOC(toc, toc->FirstTrack); DWORD dwEnd = FRAME_OF_TOC(toc, toc->LastTrack + 1); serial += dwEnd - dwStart; } return serial; } /*********************************************************************** * GetVolumeInformationW (KERNEL32.@) */ BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label, DWORD label_len, DWORD *serial, DWORD *filename_len, DWORD *flags, LPWSTR fsname, DWORD fsname_len ) { static const WCHAR audiocdW[] = {'A','u','d','i','o',' ','C','D',0}; static const WCHAR fatW[] = {'F','A','T',0}; static const WCHAR cdfsW[] = {'C','D','F','S',0}; WCHAR device[] = {'\\','\\','.','\\','A',':',0}; HANDLE handle; enum fs_type type = FS_UNKNOWN; if (!root) { WCHAR path[MAX_PATH]; GetCurrentDirectoryW( MAX_PATH, path ); device[4] = path[0]; } else { if (!root[0] || root[1] != ':') { SetLastError( ERROR_INVALID_NAME ); return FALSE; } device[4] = root[0]; } /* try to open the device */ handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 ); if (handle != INVALID_HANDLE_VALUE) { BYTE superblock[SUPERBLOCK_SIZE]; CDROM_TOC toc; DWORD br; /* check for audio CD */ /* FIXME: we only check the first track for now */ if (DeviceIoControl( handle, IOCTL_CDROM_READ_TOC, NULL, 0, &toc, sizeof(toc), &br, 0 )) { if (!(toc.TrackData[0].Control & 0x04)) /* audio track */ { TRACE( "%s: found audio CD\n", debugstr_w(device) ); if (label) lstrcpynW( label, audiocdW, label_len ); if (serial) *serial = VOLUME_GetAudioCDSerial( &toc ); CloseHandle( handle ); type = FS_ISO9660; goto fill_fs_info; } type = VOLUME_ReadCDSuperblock( handle, superblock ); } else { type = VOLUME_ReadFATSuperblock( handle, superblock ); if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock ); } CloseHandle( handle ); TRACE( "%s: found fs type %d\n", debugstr_w(device), type ); if (type == FS_ERROR) return FALSE; if (label && label_len) VOLUME_GetSuperblockLabel( type, superblock, label, label_len ); if (serial) *serial = VOLUME_GetSuperblockSerial( type, superblock ); goto fill_fs_info; } else { TRACE( "cannot open device %s: err %ld\n", debugstr_w(device), GetLastError() ); if (GetLastError() != ERROR_ACCESS_DENIED) return FALSE; } /* we couldn't open the device, fallback to default strategy */ switch(GetDriveTypeW( root )) { case DRIVE_UNKNOWN: case DRIVE_NO_ROOT_DIR: SetLastError( ERROR_NOT_READY ); return FALSE; case DRIVE_REMOVABLE: case DRIVE_FIXED: case DRIVE_REMOTE: case DRIVE_RAMDISK: type = FS_UNKNOWN; break; case DRIVE_CDROM: type = FS_ISO9660; break; } if (label && label_len) { WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0}; labelW[0] = device[4]; handle = CreateFileW( labelW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 ); if (handle != INVALID_HANDLE_VALUE) { char buffer[256], *p; DWORD size; if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0; CloseHandle( handle ); p = buffer + size; while (p > buffer && (p[-1] == ' ' || p[-1] == '\r' || p[-1] == '\n')) p--; *p = 0; if (!MultiByteToWideChar( CP_UNIXCP, 0, buffer, -1, label, label_len )) label[label_len-1] = 0; } else label[0] = 0; } if (serial) { WCHAR serialW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','s','e','r','i','a','l',0}; serialW[0] = device[4]; handle = CreateFileW( serialW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 ); if (handle != INVALID_HANDLE_VALUE) { char buffer[32]; DWORD size; if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0; CloseHandle( handle ); buffer[size] = 0; *serial = strtoul( buffer, NULL, 16 ); } else *serial = 0; } fill_fs_info: /* now fill in the information that depends on the file system type */ switch(type) { case FS_ISO9660: if (fsname) lstrcpynW( fsname, cdfsW, fsname_len ); if (filename_len) *filename_len = 221; if (flags) *flags = FILE_READ_ONLY_VOLUME; break; case FS_FAT1216: case FS_FAT32: default: /* default to FAT file system (FIXME) */ if (fsname) lstrcpynW( fsname, fatW, fsname_len ); if (filename_len) *filename_len = 255; if (flags) *flags = FILE_CASE_PRESERVED_NAMES; /* FIXME */ break; } return TRUE; } /*********************************************************************** * GetVolumeInformationA (KERNEL32.@) */ BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label, DWORD label_len, DWORD *serial, DWORD *filename_len, DWORD *flags, LPSTR fsname, DWORD fsname_len ) { UNICODE_STRING rootW; LPWSTR labelW, fsnameW; BOOL ret; if (root) RtlCreateUnicodeStringFromAsciiz(&rootW, root); else rootW.Buffer = NULL; labelW = label ? HeapAlloc(GetProcessHeap(), 0, label_len * sizeof(WCHAR)) : NULL; fsnameW = fsname ? HeapAlloc(GetProcessHeap(), 0, fsname_len * sizeof(WCHAR)) : NULL; if ((ret = GetVolumeInformationW(rootW.Buffer, labelW, label_len, serial, filename_len, flags, fsnameW, fsname_len))) { if (label) WideCharToMultiByte(CP_ACP, 0, labelW, -1, label, label_len, NULL, NULL); if (fsname) WideCharToMultiByte(CP_ACP, 0, fsnameW, -1, fsname, fsname_len, NULL, NULL); } RtlFreeUnicodeString(&rootW); if (labelW) HeapFree( GetProcessHeap(), 0, labelW ); if (fsnameW) HeapFree( GetProcessHeap(), 0, fsnameW ); return ret; } /*********************************************************************** * SetVolumeLabelW (KERNEL32.@) */ BOOL WINAPI SetVolumeLabelW( LPCWSTR root, LPCWSTR label ) { WCHAR device[] = {'\\','\\','.','\\','A',':',0}; HANDLE handle; enum fs_type type = FS_UNKNOWN; if (!root) { WCHAR path[MAX_PATH]; GetCurrentDirectoryW( MAX_PATH, path ); device[4] = path[0]; } else { if (!root[0] || root[1] != ':') { SetLastError( ERROR_INVALID_NAME ); return FALSE; } device[4] = root[0]; } /* try to open the device */ handle = CreateFileW( device, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 ); if (handle == INVALID_HANDLE_VALUE) { /* try read-only */ handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 ); if (handle != INVALID_HANDLE_VALUE) { /* device can be read but not written, return error */ CloseHandle( handle ); SetLastError( ERROR_ACCESS_DENIED ); return FALSE; } } if (handle != INVALID_HANDLE_VALUE) { BYTE superblock[SUPERBLOCK_SIZE]; BOOL ret; type = VOLUME_ReadFATSuperblock( handle, superblock ); ret = VOLUME_SetSuperblockLabel( type, handle, label ); CloseHandle( handle ); return ret; } else { TRACE( "cannot open device %s: err %ld\n", debugstr_w(device), GetLastError() ); if (GetLastError() != ERROR_ACCESS_DENIED) return FALSE; } /* we couldn't open the device, fallback to default strategy */ switch(GetDriveTypeW( root )) { case DRIVE_UNKNOWN: case DRIVE_NO_ROOT_DIR: SetLastError( ERROR_NOT_READY ); break; case DRIVE_REMOVABLE: case DRIVE_FIXED: { WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0}; labelW[0] = device[4]; handle = CreateFileW( labelW, GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, 0, 0 ); if (handle != INVALID_HANDLE_VALUE) { char buffer[64]; DWORD size; if (!WideCharToMultiByte( CP_UNIXCP, 0, label, -1, buffer, sizeof(buffer), NULL, NULL )) buffer[sizeof(buffer)-1] = 0; WriteFile( handle, buffer, strlen(buffer), &size, NULL ); CloseHandle( handle ); return TRUE; } break; } case DRIVE_REMOTE: case DRIVE_RAMDISK: case DRIVE_CDROM: SetLastError( ERROR_ACCESS_DENIED ); break; } return FALSE; } /*********************************************************************** * SetVolumeLabelA (KERNEL32.@) */ BOOL WINAPI SetVolumeLabelA(LPCSTR root, LPCSTR volname) { UNICODE_STRING rootW, volnameW; BOOL ret; if (root) RtlCreateUnicodeStringFromAsciiz(&rootW, root); else rootW.Buffer = NULL; if (volname) RtlCreateUnicodeStringFromAsciiz(&volnameW, volname); else volnameW.Buffer = NULL; ret = SetVolumeLabelW( rootW.Buffer, volnameW.Buffer ); RtlFreeUnicodeString(&rootW); RtlFreeUnicodeString(&volnameW); return ret; } /*********************************************************************** * GetVolumeNameForVolumeMountPointW (KERNEL32.@) */ BOOL WINAPI GetVolumeNameForVolumeMountPointW(LPCWSTR str, LPWSTR dst, DWORD size) { FIXME("(%s, %p, %lx): stub\n", debugstr_w(str), dst, size); return 0; } /*********************************************************************** * DefineDosDeviceW (KERNEL32.@) */ BOOL WINAPI DefineDosDeviceW( DWORD flags, LPCWSTR devname, LPCWSTR targetpath ) { DWORD len, dosdev; BOOL ret = FALSE; char *path = NULL, *target, *p; if (!(flags & DDD_RAW_TARGET_PATH)) { FIXME( "(0x%08lx,%s,%s) DDD_RAW_TARGET_PATH flag not set, not supported yet\n", flags, debugstr_w(devname), debugstr_w(targetpath) ); SetLastError(ERROR_CALL_NOT_IMPLEMENTED); return FALSE; } len = WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, NULL, 0, NULL, NULL ); if ((target = HeapAlloc( GetProcessHeap(), 0, len ))) { WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, target, len, NULL, NULL ); for (p = target; *p; p++) if (*p == '\\') *p = '/'; } else { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return FALSE; } /* first check for a DOS device */ if ((dosdev = RtlIsDosDeviceName_U( devname ))) { WCHAR name[5]; memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) ); name[LOWORD(dosdev)/sizeof(WCHAR)] = 0; path = get_dos_device_path( name ); } else if (isalphaW(devname[0]) && devname[1] == ':' && !devname[2]) /* drive mapping */ { path = get_dos_device_path( devname ); } else SetLastError( ERROR_FILE_NOT_FOUND ); if (path) { TRACE( "creating symlink %s -> %s\n", path, target ); unlink( path ); if (!symlink( target, path )) ret = TRUE; else FILE_SetDosError(); HeapFree( GetProcessHeap(), 0, path ); } HeapFree( GetProcessHeap(), 0, target ); return ret; } /*********************************************************************** * DefineDosDeviceA (KERNEL32.@) */ BOOL WINAPI DefineDosDeviceA(DWORD flags, LPCSTR devname, LPCSTR targetpath) { UNICODE_STRING d, t; BOOL ret; if (!RtlCreateUnicodeStringFromAsciiz(&d, devname)) { SetLastError(ERROR_NOT_ENOUGH_MEMORY); return FALSE; } if (!RtlCreateUnicodeStringFromAsciiz(&t, targetpath)) { RtlFreeUnicodeString(&d); SetLastError(ERROR_NOT_ENOUGH_MEMORY); return FALSE; } ret = DefineDosDeviceW(flags, d.Buffer, t.Buffer); RtlFreeUnicodeString(&d); RtlFreeUnicodeString(&t); return ret; } /*********************************************************************** * QueryDosDeviceW (KERNEL32.@) * * returns array of strings terminated by \0, terminated by \0 */ DWORD WINAPI QueryDosDeviceW( LPCWSTR devname, LPWSTR target, DWORD bufsize ) { static const WCHAR auxW[] = {'A','U','X',0}; static const WCHAR nulW[] = {'N','U','L',0}; static const WCHAR prnW[] = {'P','R','N',0}; static const WCHAR comW[] = {'C','O','M',0}; static const WCHAR lptW[] = {'L','P','T',0}; static const WCHAR com0W[] = {'C','O','M','0',0}; static const WCHAR com1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','C','O','M','1',0,0}; static const WCHAR lpt1W[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','L','P','T','1',0,0}; char buffer[16]; struct stat st; if (!bufsize) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return 0; } if (devname) { WCHAR *p, name[5]; char *path, *link; DWORD dosdev, ret = 0; if ((dosdev = RtlIsDosDeviceName_U( devname ))) { memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) ); name[LOWORD(dosdev)/sizeof(WCHAR)] = 0; } else if (devname[0] && devname[1] == ':' && !devname[2]) { memcpy( name, devname, 3 * sizeof(WCHAR) ); } else { SetLastError( ERROR_BAD_PATHNAME ); return 0; } if (!(path = get_dos_device_path( name ))) return 0; link = read_symlink( path ); HeapFree( GetProcessHeap(), 0, path ); if (link) { ret = MultiByteToWideChar( CP_UNIXCP, 0, link, -1, target, bufsize ); HeapFree( GetProcessHeap(), 0, link ); } else if (dosdev) /* look for device defaults */ { if (!strcmpiW( name, auxW )) { if (bufsize >= sizeof(com1W)/sizeof(WCHAR)) { memcpy( target, com1W, sizeof(com1W) ); ret = sizeof(com1W)/sizeof(WCHAR); } else SetLastError( ERROR_INSUFFICIENT_BUFFER ); return ret; } if (!strcmpiW( name, prnW )) { if (bufsize >= sizeof(lpt1W)/sizeof(WCHAR)) { memcpy( target, lpt1W, sizeof(lpt1W) ); ret = sizeof(lpt1W)/sizeof(WCHAR); } else SetLastError( ERROR_INSUFFICIENT_BUFFER ); return ret; } buffer[0] = 0; if (!strcmpiW( name, nulW )) strcpy( buffer, "/dev/null" ); else if (!strncmpiW( name, comW, 3 )) get_default_com_device( buffer, name[3] - '0' ); else if (!strncmpiW( name, lptW, 3 )) get_default_lpt_device( buffer, name[3] - '0' ); if (buffer[0] && !stat( buffer, &st )) ret = MultiByteToWideChar( CP_UNIXCP, 0, buffer, -1, target, bufsize ); else SetLastError( ERROR_FILE_NOT_FOUND ); } if (ret) { if (ret < bufsize) target[ret++] = 0; /* add an extra null */ for (p = target; *p; p++) if (*p == '/') *p = '\\'; } return ret; } else /* return a list of all devices */ { WCHAR *p = target; char *path, *dev, buffer[16]; int i; if (bufsize <= (sizeof(auxW)+sizeof(nulW)+sizeof(prnW))/sizeof(WCHAR)) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return 0; } memcpy( p, auxW, sizeof(auxW) ); p += sizeof(auxW) / sizeof(WCHAR); memcpy( p, nulW, sizeof(nulW) ); p += sizeof(nulW) / sizeof(WCHAR); memcpy( p, prnW, sizeof(prnW) ); p += sizeof(prnW) / sizeof(WCHAR); if (!(path = get_dos_device_path( com0W ))) return 0; dev = strrchr( path, '/' ) + 1; for (i = 1; i <= 9; i++) { sprintf( dev, "com%d", i ); if (!stat( path, &st ) || (get_default_com_device( buffer, i ) && !stat( buffer, &st ))) { if (p + 5 >= target + bufsize) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return 0; } strcpyW( p, comW ); p[3] = '0' + i; p[4] = 0; p += 5; } } for (i = 1; i <= 9; i++) { sprintf( dev, "lpt%d", i ); if (!stat( path, &st ) || (get_default_lpt_device( buffer, i ) && !stat( buffer, &st ))) { if (p + 5 >= target + bufsize) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return 0; } strcpyW( p, lptW ); p[3] = '0' + i; p[4] = 0; p += 5; } } for (i = 0; i < 26; i++) { sprintf( dev, "%c:", 'a' + i ); if (!stat( path, &st )) { if (p + 3 >= target + bufsize) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return 0; } *p++ = 'A' + i; *p++ = ':'; *p++ = 0; } } *p++ = 0; /* terminating null */ return p - target; } } /*********************************************************************** * QueryDosDeviceA (KERNEL32.@) * * returns array of strings terminated by \0, terminated by \0 */ DWORD WINAPI QueryDosDeviceA( LPCSTR devname, LPSTR target, DWORD bufsize ) { DWORD ret = 0, retW; UNICODE_STRING devnameW; LPWSTR targetW = HeapAlloc( GetProcessHeap(),0, bufsize * sizeof(WCHAR) ); if (!targetW) { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return 0; } if (devname) RtlCreateUnicodeStringFromAsciiz(&devnameW, devname); else devnameW.Buffer = NULL; retW = QueryDosDeviceW(devnameW.Buffer, targetW, bufsize); ret = WideCharToMultiByte(CP_ACP, 0, targetW, retW, target, bufsize, NULL, NULL); RtlFreeUnicodeString(&devnameW); HeapFree(GetProcessHeap(), 0, targetW); return ret; }