1c3aac50fSPeter Wemm /* $FreeBSD$ */ 2952a6212SJordan K. Hubbard /* $NetBSD: msdosfs_conv.c,v 1.25 1997/11/17 15:36:40 ws Exp $ */ 327a0bc89SDoug Rabson 4952a6212SJordan K. Hubbard /*- 5952a6212SJordan K. Hubbard * Copyright (C) 1995, 1997 Wolfgang Solfrank. 6952a6212SJordan K. Hubbard * Copyright (C) 1995, 1997 TooLs GmbH. 7952a6212SJordan K. Hubbard * All rights reserved. 8952a6212SJordan K. Hubbard * Original code by Paul Popelka (paulp@uts.amdahl.com) (see below). 9952a6212SJordan K. Hubbard * 10952a6212SJordan K. Hubbard * Redistribution and use in source and binary forms, with or without 11952a6212SJordan K. Hubbard * modification, are permitted provided that the following conditions 12952a6212SJordan K. Hubbard * are met: 13952a6212SJordan K. Hubbard * 1. Redistributions of source code must retain the above copyright 14952a6212SJordan K. Hubbard * notice, this list of conditions and the following disclaimer. 15952a6212SJordan K. Hubbard * 2. Redistributions in binary form must reproduce the above copyright 16952a6212SJordan K. Hubbard * notice, this list of conditions and the following disclaimer in the 17952a6212SJordan K. Hubbard * documentation and/or other materials provided with the distribution. 18952a6212SJordan K. Hubbard * 3. All advertising materials mentioning features or use of this software 19952a6212SJordan K. Hubbard * must display the following acknowledgement: 20952a6212SJordan K. Hubbard * This product includes software developed by TooLs GmbH. 21952a6212SJordan K. Hubbard * 4. The name of TooLs GmbH may not be used to endorse or promote products 22952a6212SJordan K. Hubbard * derived from this software without specific prior written permission. 23952a6212SJordan K. Hubbard * 24952a6212SJordan K. Hubbard * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 25952a6212SJordan K. Hubbard * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 26952a6212SJordan K. Hubbard * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27952a6212SJordan K. Hubbard * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 28952a6212SJordan K. Hubbard * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 29952a6212SJordan K. Hubbard * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 30952a6212SJordan K. Hubbard * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 31952a6212SJordan K. Hubbard * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 32952a6212SJordan K. Hubbard * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 33952a6212SJordan K. Hubbard * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34952a6212SJordan K. Hubbard */ 35d167cf6fSWarner Losh /*- 3627a0bc89SDoug Rabson * Written by Paul Popelka (paulp@uts.amdahl.com) 3727a0bc89SDoug Rabson * 3827a0bc89SDoug Rabson * You can do anything you want with this software, just don't say you wrote 3927a0bc89SDoug Rabson * it, and don't remove this notice. 4027a0bc89SDoug Rabson * 4127a0bc89SDoug Rabson * This software is provided "as is". 4227a0bc89SDoug Rabson * 4327a0bc89SDoug Rabson * The author supplies this software to be publicly redistributed on the 4427a0bc89SDoug Rabson * understanding that the author is not responsible for the correct 4527a0bc89SDoug Rabson * functioning of this software in any circumstances and is not liable for 4627a0bc89SDoug Rabson * any damages caused by this software. 4727a0bc89SDoug Rabson * 4827a0bc89SDoug Rabson * October 1992 4927a0bc89SDoug Rabson */ 5027a0bc89SDoug Rabson 5127a0bc89SDoug Rabson #include <sys/param.h> 52952a6212SJordan K. Hubbard #include <sys/systm.h> 53952a6212SJordan K. Hubbard #include <sys/dirent.h> 54c4f02a89SMax Khon #include <sys/iconv.h> 55c4f02a89SMax Khon #include <sys/malloc.h> 569b0802c9SBruce Evans #include <sys/mount.h> 579b0802c9SBruce Evans 589b0802c9SBruce Evans #include <fs/msdosfs/bpb.h> 599b0802c9SBruce Evans #include <fs/msdosfs/direntry.h> 609b0802c9SBruce Evans #include <fs/msdosfs/msdosfsmount.h> 61c4f02a89SMax Khon 62c4f02a89SMax Khon extern struct iconv_functions *msdosfs_iconv; 6327a0bc89SDoug Rabson 64bddcdc51STim J. Robbins static int mbsadjpos(const char **, size_t, size_t, int, int, void *handle); 65c4f02a89SMax Khon static u_int16_t dos2unixchr(const u_char **, size_t *, int, struct msdosfsmount *); 66c4f02a89SMax Khon static u_int16_t unix2doschr(const u_char **, size_t *, struct msdosfsmount *); 67c4f02a89SMax Khon static u_int16_t win2unixchr(u_int16_t, struct msdosfsmount *); 68c4f02a89SMax Khon static u_int16_t unix2winchr(const u_char **, size_t *, int, struct msdosfsmount *); 69c4f02a89SMax Khon 704cdb1483SNate Lawson static char *nambuf_ptr; 714cdb1483SNate Lawson static size_t nambuf_len; 7258ad326bSNate Lawson static int nambuf_last_id; 7313df76f2SAndrey A. Chernov 7427a0bc89SDoug Rabson /* 75cce0eefdSMike Smith * 0 - character disallowed in long file name. 76cce0eefdSMike Smith * 1 - character should be replaced by '_' in DOS file name, 77cce0eefdSMike Smith * and generation number inserted. 78cce0eefdSMike Smith * 2 - character ('.' and ' ') should be skipped in DOS file name, 79cce0eefdSMike Smith * and generation number inserted. 80cce0eefdSMike Smith */ 81952a6212SJordan K. Hubbard static u_char 82952a6212SJordan K. Hubbard unix2dos[256] = { 83c4f02a89SMax Khon /* iso8859-1 -> cp850 */ 84952a6212SJordan K. Hubbard 0, 0, 0, 0, 0, 0, 0, 0, /* 00-07 */ 85952a6212SJordan K. Hubbard 0, 0, 0, 0, 0, 0, 0, 0, /* 08-0f */ 86952a6212SJordan K. Hubbard 0, 0, 0, 0, 0, 0, 0, 0, /* 10-17 */ 87952a6212SJordan K. Hubbard 0, 0, 0, 0, 0, 0, 0, 0, /* 18-1f */ 88cce0eefdSMike Smith 2, 0x21, 0, 0x23, 0x24, 0x25, 0x26, 0x27, /* 20-27 */ 89cce0eefdSMike Smith 0x28, 0x29, 0, 1, 1, 0x2d, 2, 0, /* 28-2f */ 90952a6212SJordan K. Hubbard 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 30-37 */ 91cce0eefdSMike Smith 0x38, 0x39, 0, 1, 0, 1, 0, 0, /* 38-3f */ 92952a6212SJordan K. Hubbard 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 40-47 */ 93952a6212SJordan K. Hubbard 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 48-4f */ 94952a6212SJordan K. Hubbard 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 50-57 */ 95cce0eefdSMike Smith 0x58, 0x59, 0x5a, 1, 0, 1, 0x5e, 0x5f, /* 58-5f */ 96952a6212SJordan K. Hubbard 0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 60-67 */ 97952a6212SJordan K. Hubbard 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 68-6f */ 98952a6212SJordan K. Hubbard 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 70-77 */ 99952a6212SJordan K. Hubbard 0x58, 0x59, 0x5a, 0x7b, 0, 0x7d, 0x7e, 0, /* 78-7f */ 100952a6212SJordan K. Hubbard 0, 0, 0, 0, 0, 0, 0, 0, /* 80-87 */ 101952a6212SJordan K. Hubbard 0, 0, 0, 0, 0, 0, 0, 0, /* 88-8f */ 102952a6212SJordan K. Hubbard 0, 0, 0, 0, 0, 0, 0, 0, /* 90-97 */ 103952a6212SJordan K. Hubbard 0, 0, 0, 0, 0, 0, 0, 0, /* 98-9f */ 104952a6212SJordan K. Hubbard 0, 0xad, 0xbd, 0x9c, 0xcf, 0xbe, 0xdd, 0xf5, /* a0-a7 */ 105952a6212SJordan K. Hubbard 0xf9, 0xb8, 0xa6, 0xae, 0xaa, 0xf0, 0xa9, 0xee, /* a8-af */ 106952a6212SJordan K. Hubbard 0xf8, 0xf1, 0xfd, 0xfc, 0xef, 0xe6, 0xf4, 0xfa, /* b0-b7 */ 107952a6212SJordan K. Hubbard 0xf7, 0xfb, 0xa7, 0xaf, 0xac, 0xab, 0xf3, 0xa8, /* b8-bf */ 108952a6212SJordan K. Hubbard 0xb7, 0xb5, 0xb6, 0xc7, 0x8e, 0x8f, 0x92, 0x80, /* c0-c7 */ 109952a6212SJordan K. Hubbard 0xd4, 0x90, 0xd2, 0xd3, 0xde, 0xd6, 0xd7, 0xd8, /* c8-cf */ 110952a6212SJordan K. Hubbard 0xd1, 0xa5, 0xe3, 0xe0, 0xe2, 0xe5, 0x99, 0x9e, /* d0-d7 */ 111952a6212SJordan K. Hubbard 0x9d, 0xeb, 0xe9, 0xea, 0x9a, 0xed, 0xe8, 0xe1, /* d8-df */ 112952a6212SJordan K. Hubbard 0xb7, 0xb5, 0xb6, 0xc7, 0x8e, 0x8f, 0x92, 0x80, /* e0-e7 */ 113952a6212SJordan K. Hubbard 0xd4, 0x90, 0xd2, 0xd3, 0xde, 0xd6, 0xd7, 0xd8, /* e8-ef */ 114952a6212SJordan K. Hubbard 0xd1, 0xa5, 0xe3, 0xe0, 0xe2, 0xe5, 0x99, 0xf6, /* f0-f7 */ 115952a6212SJordan K. Hubbard 0x9d, 0xeb, 0xe9, 0xea, 0x9a, 0xed, 0xe8, 0x98, /* f8-ff */ 116952a6212SJordan K. Hubbard }; 117952a6212SJordan K. Hubbard 118952a6212SJordan K. Hubbard static u_char 119952a6212SJordan K. Hubbard dos2unix[256] = { 120c4f02a89SMax Khon /* cp850 -> iso8859-1 */ 121952a6212SJordan K. Hubbard 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, /* 00-07 */ 122952a6212SJordan K. Hubbard 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, /* 08-0f */ 123952a6212SJordan K. Hubbard 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, /* 10-17 */ 124952a6212SJordan K. Hubbard 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, /* 18-1f */ 125952a6212SJordan K. Hubbard 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 20-27 */ 126952a6212SJordan K. Hubbard 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 28-2f */ 127952a6212SJordan K. Hubbard 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 30-37 */ 128952a6212SJordan K. Hubbard 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 38-3f */ 129952a6212SJordan K. Hubbard 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 40-47 */ 130952a6212SJordan K. Hubbard 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 48-4f */ 131952a6212SJordan K. Hubbard 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 50-57 */ 132952a6212SJordan K. Hubbard 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 58-5f */ 133952a6212SJordan K. Hubbard 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 60-67 */ 134952a6212SJordan K. Hubbard 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 68-6f */ 135952a6212SJordan K. Hubbard 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 70-77 */ 136952a6212SJordan K. Hubbard 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 78-7f */ 137952a6212SJordan K. Hubbard 0xc7, 0xfc, 0xe9, 0xe2, 0xe4, 0xe0, 0xe5, 0xe7, /* 80-87 */ 138952a6212SJordan K. Hubbard 0xea, 0xeb, 0xe8, 0xef, 0xee, 0xec, 0xc4, 0xc5, /* 88-8f */ 139952a6212SJordan K. Hubbard 0xc9, 0xe6, 0xc6, 0xf4, 0xf6, 0xf2, 0xfb, 0xf9, /* 90-97 */ 140952a6212SJordan K. Hubbard 0xff, 0xd6, 0xdc, 0xf8, 0xa3, 0xd8, 0xd7, 0x3f, /* 98-9f */ 141952a6212SJordan K. Hubbard 0xe1, 0xed, 0xf3, 0xfa, 0xf1, 0xd1, 0xaa, 0xba, /* a0-a7 */ 142952a6212SJordan K. Hubbard 0xbf, 0xae, 0xac, 0xbd, 0xbc, 0xa1, 0xab, 0xbb, /* a8-af */ 143952a6212SJordan K. Hubbard 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0xc1, 0xc2, 0xc0, /* b0-b7 */ 144952a6212SJordan K. Hubbard 0xa9, 0x3f, 0x3f, 0x3f, 0x3f, 0xa2, 0xa5, 0x3f, /* b8-bf */ 145952a6212SJordan K. Hubbard 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0xe3, 0xc3, /* c0-c7 */ 146952a6212SJordan K. Hubbard 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0xa4, /* c8-cf */ 147952a6212SJordan K. Hubbard 0xf0, 0xd0, 0xca, 0xcb, 0xc8, 0x3f, 0xcd, 0xce, /* d0-d7 */ 148952a6212SJordan K. Hubbard 0xcf, 0x3f, 0x3f, 0x3f, 0x3f, 0xa6, 0xcc, 0x3f, /* d8-df */ 149952a6212SJordan K. Hubbard 0xd3, 0xdf, 0xd4, 0xd2, 0xf5, 0xd5, 0xb5, 0xfe, /* e0-e7 */ 150952a6212SJordan K. Hubbard 0xde, 0xda, 0xdb, 0xd9, 0xfd, 0xdd, 0xaf, 0x3f, /* e8-ef */ 151952a6212SJordan K. Hubbard 0xad, 0xb1, 0x3f, 0xbe, 0xb6, 0xa7, 0xf7, 0xb8, /* f0-f7 */ 152952a6212SJordan K. Hubbard 0xb0, 0xa8, 0xb7, 0xb9, 0xb3, 0xb2, 0x3f, 0x3f, /* f8-ff */ 153952a6212SJordan K. Hubbard }; 154952a6212SJordan K. Hubbard 155952a6212SJordan K. Hubbard static u_char 156952a6212SJordan K. Hubbard u2l[256] = { 157c4f02a89SMax Khon /* tolower */ 158952a6212SJordan K. Hubbard 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 00-07 */ 159952a6212SJordan K. Hubbard 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 08-0f */ 160952a6212SJordan K. Hubbard 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 10-17 */ 161952a6212SJordan K. Hubbard 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 18-1f */ 162952a6212SJordan K. Hubbard 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 20-27 */ 163952a6212SJordan K. Hubbard 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 28-2f */ 164952a6212SJordan K. Hubbard 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 30-37 */ 165952a6212SJordan K. Hubbard 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 38-3f */ 166952a6212SJordan K. Hubbard 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 40-47 */ 167952a6212SJordan K. Hubbard 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 48-4f */ 168952a6212SJordan K. Hubbard 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 50-57 */ 169952a6212SJordan K. Hubbard 0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 58-5f */ 170952a6212SJordan K. Hubbard 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 60-67 */ 171952a6212SJordan K. Hubbard 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 68-6f */ 172952a6212SJordan K. Hubbard 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 70-77 */ 173952a6212SJordan K. Hubbard 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 78-7f */ 174952a6212SJordan K. Hubbard 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 80-87 */ 175952a6212SJordan K. Hubbard 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 88-8f */ 176952a6212SJordan K. Hubbard 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 90-97 */ 177952a6212SJordan K. Hubbard 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 98-9f */ 178952a6212SJordan K. Hubbard 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* a0-a7 */ 179952a6212SJordan K. Hubbard 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* a8-af */ 180952a6212SJordan K. Hubbard 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* b0-b7 */ 181952a6212SJordan K. Hubbard 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* b8-bf */ 182952a6212SJordan K. Hubbard 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* c0-c7 */ 183952a6212SJordan K. Hubbard 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* c8-cf */ 184952a6212SJordan K. Hubbard 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* d0-d7 */ 185952a6212SJordan K. Hubbard 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* d8-df */ 186952a6212SJordan K. Hubbard 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* e0-e7 */ 187952a6212SJordan K. Hubbard 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* e8-ef */ 188952a6212SJordan K. Hubbard 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* f0-f7 */ 189952a6212SJordan K. Hubbard 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* f8-ff */ 190952a6212SJordan K. Hubbard }; 19127a0bc89SDoug Rabson 1927391f611SAndrey A. Chernov static u_char 1937391f611SAndrey A. Chernov l2u[256] = { 194c4f02a89SMax Khon /* toupper */ 1957391f611SAndrey A. Chernov 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 00-07 */ 1967391f611SAndrey A. Chernov 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 08-0f */ 1977391f611SAndrey A. Chernov 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 10-17 */ 1987391f611SAndrey A. Chernov 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 18-1f */ 1997391f611SAndrey A. Chernov 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 20-27 */ 2007391f611SAndrey A. Chernov 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 28-2f */ 2017391f611SAndrey A. Chernov 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 30-37 */ 2027391f611SAndrey A. Chernov 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 38-3f */ 2037391f611SAndrey A. Chernov 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 40-47 */ 2047391f611SAndrey A. Chernov 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 48-4f */ 2057391f611SAndrey A. Chernov 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 50-57 */ 2067391f611SAndrey A. Chernov 0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 58-5f */ 2077391f611SAndrey A. Chernov 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 60-67 */ 2087391f611SAndrey A. Chernov 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 68-6f */ 2097391f611SAndrey A. Chernov 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 70-77 */ 2107391f611SAndrey A. Chernov 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 78-7f */ 2117391f611SAndrey A. Chernov 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 80-87 */ 2127391f611SAndrey A. Chernov 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 88-8f */ 2137391f611SAndrey A. Chernov 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 90-97 */ 2147391f611SAndrey A. Chernov 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 98-9f */ 2157391f611SAndrey A. Chernov 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* a0-a7 */ 2167391f611SAndrey A. Chernov 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* a8-af */ 2177391f611SAndrey A. Chernov 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* b0-b7 */ 2187391f611SAndrey A. Chernov 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* b8-bf */ 2197391f611SAndrey A. Chernov 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* c0-c7 */ 2207391f611SAndrey A. Chernov 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* c8-cf */ 2217391f611SAndrey A. Chernov 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* d0-d7 */ 2227391f611SAndrey A. Chernov 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* d8-df */ 2237391f611SAndrey A. Chernov 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* e0-e7 */ 2247391f611SAndrey A. Chernov 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* e8-ef */ 2257391f611SAndrey A. Chernov 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* f0-f7 */ 2267391f611SAndrey A. Chernov 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* f8-ff */ 2277391f611SAndrey A. Chernov }; 2287391f611SAndrey A. Chernov 22927a0bc89SDoug Rabson /* 23027a0bc89SDoug Rabson * DOS filenames are made of 2 parts, the name part and the extension part. 23127a0bc89SDoug Rabson * The name part is 8 characters long and the extension part is 3 23227a0bc89SDoug Rabson * characters long. They may contain trailing blanks if the name or 23327a0bc89SDoug Rabson * extension are not long enough to fill their respective fields. 23427a0bc89SDoug Rabson */ 23527a0bc89SDoug Rabson 23627a0bc89SDoug Rabson /* 23727a0bc89SDoug Rabson * Convert a DOS filename to a unix filename. And, return the number of 23827a0bc89SDoug Rabson * characters in the resulting unix filename excluding the terminating 23927a0bc89SDoug Rabson * null. 24027a0bc89SDoug Rabson */ 24127a0bc89SDoug Rabson int 242c4f02a89SMax Khon dos2unixfn(dn, un, lower, pmp) 24327a0bc89SDoug Rabson u_char dn[11]; 24427a0bc89SDoug Rabson u_char *un; 2455114f1d7SAndrey A. Chernov int lower; 246c4f02a89SMax Khon struct msdosfsmount *pmp; 24727a0bc89SDoug Rabson { 248bddcdc51STim J. Robbins size_t i; 249c4f02a89SMax Khon int thislong = 0; 250c4f02a89SMax Khon u_int16_t c; 25127a0bc89SDoug Rabson 25227a0bc89SDoug Rabson /* 25327a0bc89SDoug Rabson * If first char of the filename is SLOT_E5 (0x05), then the real 25427a0bc89SDoug Rabson * first char of the filename should be 0xe5. But, they couldn't 25527a0bc89SDoug Rabson * just have a 0xe5 mean 0xe5 because that is used to mean a freed 25627a0bc89SDoug Rabson * directory slot. Another dos quirk. 25727a0bc89SDoug Rabson */ 258952a6212SJordan K. Hubbard if (*dn == SLOT_E5) 259c4f02a89SMax Khon *dn = 0xe5; 26027a0bc89SDoug Rabson 261952a6212SJordan K. Hubbard /* 262952a6212SJordan K. Hubbard * Copy the name portion into the unix filename string. 263952a6212SJordan K. Hubbard */ 264c4f02a89SMax Khon for (i = 8; i > 0 && *dn != ' ';) { 265cc005bb9SMaxim Konovalov c = dos2unixchr((const u_char **)&dn, &i, lower & LCASE_BASE, 266cc005bb9SMaxim Konovalov pmp); 267c4f02a89SMax Khon if (c & 0xff00) { 268c4f02a89SMax Khon *un++ = c >> 8; 269952a6212SJordan K. Hubbard thislong++; 270952a6212SJordan K. Hubbard } 271c4f02a89SMax Khon *un++ = c; 272c4f02a89SMax Khon thislong++; 273c4f02a89SMax Khon } 274c4f02a89SMax Khon dn += i; 275952a6212SJordan K. Hubbard 276952a6212SJordan K. Hubbard /* 277952a6212SJordan K. Hubbard * Now, if there is an extension then put in a period and copy in 278952a6212SJordan K. Hubbard * the extension. 279952a6212SJordan K. Hubbard */ 280952a6212SJordan K. Hubbard if (*dn != ' ') { 281952a6212SJordan K. Hubbard *un++ = '.'; 282952a6212SJordan K. Hubbard thislong++; 283c4f02a89SMax Khon for (i = 3; i > 0 && *dn != ' ';) { 284cc005bb9SMaxim Konovalov c = dos2unixchr((const u_char **)&dn, &i, 285cc005bb9SMaxim Konovalov lower & LCASE_EXT, pmp); 286c4f02a89SMax Khon if (c & 0xff00) { 287c4f02a89SMax Khon *un++ = c >> 8; 288c4f02a89SMax Khon thislong++; 289c4f02a89SMax Khon } 290c4f02a89SMax Khon *un++ = c; 291952a6212SJordan K. Hubbard thislong++; 292952a6212SJordan K. Hubbard } 293952a6212SJordan K. Hubbard } 294952a6212SJordan K. Hubbard *un++ = 0; 295952a6212SJordan K. Hubbard 296952a6212SJordan K. Hubbard return (thislong); 29727a0bc89SDoug Rabson } 29827a0bc89SDoug Rabson 29927a0bc89SDoug Rabson /* 300952a6212SJordan K. Hubbard * Convert a unix filename to a DOS filename according to Win95 rules. 301952a6212SJordan K. Hubbard * If applicable and gen is not 0, it is inserted into the converted 302952a6212SJordan K. Hubbard * filename as a generation number. 303952a6212SJordan K. Hubbard * Returns 304952a6212SJordan K. Hubbard * 0 if name couldn't be converted 305952a6212SJordan K. Hubbard * 1 if the converted name is the same as the original 306952a6212SJordan K. Hubbard * (no long filename entry necessary for Win95) 307952a6212SJordan K. Hubbard * 2 if conversion was successful 308952a6212SJordan K. Hubbard * 3 if conversion was successful and generation number was inserted 30927a0bc89SDoug Rabson */ 310952a6212SJordan K. Hubbard int 311c4f02a89SMax Khon unix2dosfn(un, dn, unlen, gen, pmp) 312952a6212SJordan K. Hubbard const u_char *un; 313952a6212SJordan K. Hubbard u_char dn[12]; 314bddcdc51STim J. Robbins size_t unlen; 315952a6212SJordan K. Hubbard u_int gen; 316c4f02a89SMax Khon struct msdosfsmount *pmp; 31727a0bc89SDoug Rabson { 318bddcdc51STim J. Robbins ssize_t i, j; 319bddcdc51STim J. Robbins int l; 320952a6212SJordan K. Hubbard int conv = 1; 321952a6212SJordan K. Hubbard const u_char *cp, *dp, *dp1; 322952a6212SJordan K. Hubbard u_char gentext[6], *wcp; 323c4f02a89SMax Khon u_int16_t c; 32427a0bc89SDoug Rabson 32527a0bc89SDoug Rabson /* 32627a0bc89SDoug Rabson * Fill the dos filename string with blanks. These are DOS's pad 32727a0bc89SDoug Rabson * characters. 32827a0bc89SDoug Rabson */ 329952a6212SJordan K. Hubbard for (i = 0; i < 11; i++) 33027a0bc89SDoug Rabson dn[i] = ' '; 331952a6212SJordan K. Hubbard dn[11] = 0; 33227a0bc89SDoug Rabson 33327a0bc89SDoug Rabson /* 33427a0bc89SDoug Rabson * The filenames "." and ".." are handled specially, since they 33527a0bc89SDoug Rabson * don't follow dos filename rules. 33627a0bc89SDoug Rabson */ 33727a0bc89SDoug Rabson if (un[0] == '.' && unlen == 1) { 33827a0bc89SDoug Rabson dn[0] = '.'; 339952a6212SJordan K. Hubbard return gen <= 1; 34027a0bc89SDoug Rabson } 34127a0bc89SDoug Rabson if (un[0] == '.' && un[1] == '.' && unlen == 2) { 34227a0bc89SDoug Rabson dn[0] = '.'; 34327a0bc89SDoug Rabson dn[1] = '.'; 344952a6212SJordan K. Hubbard return gen <= 1; 34527a0bc89SDoug Rabson } 34627a0bc89SDoug Rabson 34727a0bc89SDoug Rabson /* 348952a6212SJordan K. Hubbard * Filenames with only blanks and dots are not allowed! 34927a0bc89SDoug Rabson */ 350952a6212SJordan K. Hubbard for (cp = un, i = unlen; --i >= 0; cp++) 351952a6212SJordan K. Hubbard if (*cp != ' ' && *cp != '.') 352952a6212SJordan K. Hubbard break; 353952a6212SJordan K. Hubbard if (i < 0) 354952a6212SJordan K. Hubbard return 0; 355952a6212SJordan K. Hubbard 356cce0eefdSMike Smith 357cce0eefdSMike Smith /* 358cce0eefdSMike Smith * Filenames with some characters are not allowed! 359cce0eefdSMike Smith */ 360c4f02a89SMax Khon for (cp = un, i = unlen; i > 0;) 361c4f02a89SMax Khon if (unix2doschr(&cp, (size_t *)&i, pmp) == 0) 362cce0eefdSMike Smith return 0; 363cce0eefdSMike Smith 364952a6212SJordan K. Hubbard /* 365952a6212SJordan K. Hubbard * Now find the extension 366952a6212SJordan K. Hubbard * Note: dot as first char doesn't start extension 367952a6212SJordan K. Hubbard * and trailing dots and blanks are ignored 368c4f02a89SMax Khon * Note(2003/7): It seems recent Windows has 369c4f02a89SMax Khon * defferent rule than this code, that Windows 370c4f02a89SMax Khon * ignores all dots before extension, and use all 371c4f02a89SMax Khon * chars as filename except for dots. 372952a6212SJordan K. Hubbard */ 373952a6212SJordan K. Hubbard dp = dp1 = 0; 374952a6212SJordan K. Hubbard for (cp = un + 1, i = unlen - 1; --i >= 0;) { 375952a6212SJordan K. Hubbard switch (*cp++) { 376952a6212SJordan K. Hubbard case '.': 377952a6212SJordan K. Hubbard if (!dp1) 378952a6212SJordan K. Hubbard dp1 = cp; 379952a6212SJordan K. Hubbard break; 380952a6212SJordan K. Hubbard case ' ': 381952a6212SJordan K. Hubbard break; 382952a6212SJordan K. Hubbard default: 383952a6212SJordan K. Hubbard if (dp1) 384952a6212SJordan K. Hubbard dp = dp1; 385952a6212SJordan K. Hubbard dp1 = 0; 386952a6212SJordan K. Hubbard break; 387952a6212SJordan K. Hubbard } 38827a0bc89SDoug Rabson } 38927a0bc89SDoug Rabson 39027a0bc89SDoug Rabson /* 391697ab829SR. Imura * Now convert it (this part is for extension). 392697ab829SR. Imura * As Windows XP do, if it's not ascii char, 393697ab829SR. Imura * this function should return 2 or 3, so that checkng out Unicode name. 39427a0bc89SDoug Rabson */ 395952a6212SJordan K. Hubbard if (dp) { 396952a6212SJordan K. Hubbard if (dp1) 397952a6212SJordan K. Hubbard l = dp1 - dp; 398952a6212SJordan K. Hubbard else 399952a6212SJordan K. Hubbard l = unlen - (dp - un); 400c4f02a89SMax Khon for (cp = dp, i = l, j = 8; i > 0 && j < 11; j++) { 401c4f02a89SMax Khon c = unix2doschr(&cp, (size_t *)&i, pmp); 402c4f02a89SMax Khon if (c & 0xff00) { 403c4f02a89SMax Khon dn[j] = c >> 8; 404c4f02a89SMax Khon if (++j < 11) { 405c4f02a89SMax Khon dn[j] = c; 406697ab829SR. Imura if (conv != 3) 407697ab829SR. Imura conv = 2; 408c4f02a89SMax Khon continue; 409c4f02a89SMax Khon } else { 410c4f02a89SMax Khon conv = 3; 411c4f02a89SMax Khon dn[j-1] = ' '; 412c4f02a89SMax Khon break; 413c4f02a89SMax Khon } 414c4f02a89SMax Khon } else { 415c4f02a89SMax Khon dn[j] = c; 416c4f02a89SMax Khon } 417697ab829SR. Imura if (((dn[j] & 0x80) || *(cp - 1) != dn[j]) && conv != 3) 418952a6212SJordan K. Hubbard conv = 2; 419cce0eefdSMike Smith if (dn[j] == 1) { 420cce0eefdSMike Smith conv = 3; 421cce0eefdSMike Smith dn[j] = '_'; 422cce0eefdSMike Smith } 423cce0eefdSMike Smith if (dn[j] == 2) { 424952a6212SJordan K. Hubbard conv = 3; 425952a6212SJordan K. Hubbard dn[j--] = ' '; 426952a6212SJordan K. Hubbard } 427952a6212SJordan K. Hubbard } 428c4f02a89SMax Khon if (i > 0) 429952a6212SJordan K. Hubbard conv = 3; 430952a6212SJordan K. Hubbard dp--; 431952a6212SJordan K. Hubbard } else { 432952a6212SJordan K. Hubbard for (dp = cp; *--dp == ' ' || *dp == '.';); 433952a6212SJordan K. Hubbard dp++; 434952a6212SJordan K. Hubbard } 435952a6212SJordan K. Hubbard 436952a6212SJordan K. Hubbard /* 437952a6212SJordan K. Hubbard * Now convert the rest of the name 438952a6212SJordan K. Hubbard */ 439c4f02a89SMax Khon for (i = dp - un, j = 0; un < dp && j < 8; j++) { 440bddcdc51STim J. Robbins c = unix2doschr(&un, &i, pmp); 441c4f02a89SMax Khon if (c & 0xff00) { 442c4f02a89SMax Khon dn[j] = c >> 8; 443c4f02a89SMax Khon if (++j < 8) { 444c4f02a89SMax Khon dn[j] = c; 445697ab829SR. Imura if (conv != 3) 446697ab829SR. Imura conv = 2; 447c4f02a89SMax Khon continue; 448c4f02a89SMax Khon } else { 449c4f02a89SMax Khon conv = 3; 450c4f02a89SMax Khon dn[j-1] = ' '; 451c4f02a89SMax Khon break; 452c4f02a89SMax Khon } 453c4f02a89SMax Khon } else { 454c4f02a89SMax Khon dn[j] = c; 455c4f02a89SMax Khon } 456697ab829SR. Imura if (((dn[j] & 0x80) || *(un - 1) != dn[j]) && conv != 3) 457952a6212SJordan K. Hubbard conv = 2; 458cce0eefdSMike Smith if (dn[j] == 1) { 459cce0eefdSMike Smith conv = 3; 460cce0eefdSMike Smith dn[j] = '_'; 461cce0eefdSMike Smith } 462cce0eefdSMike Smith if (dn[j] == 2) { 463952a6212SJordan K. Hubbard conv = 3; 464952a6212SJordan K. Hubbard dn[j--] = ' '; 465952a6212SJordan K. Hubbard } 466952a6212SJordan K. Hubbard } 467952a6212SJordan K. Hubbard if (un < dp) 468952a6212SJordan K. Hubbard conv = 3; 469952a6212SJordan K. Hubbard /* 470952a6212SJordan K. Hubbard * If we didn't have any chars in filename, 471952a6212SJordan K. Hubbard * generate a default 472952a6212SJordan K. Hubbard */ 473952a6212SJordan K. Hubbard if (!j) 474952a6212SJordan K. Hubbard dn[0] = '_'; 475952a6212SJordan K. Hubbard 476952a6212SJordan K. Hubbard /* 477952a6212SJordan K. Hubbard * If there wasn't any char dropped, 478952a6212SJordan K. Hubbard * there is no place for generation numbers 47927a0bc89SDoug Rabson */ 480952a6212SJordan K. Hubbard if (conv != 3) { 481952a6212SJordan K. Hubbard if (gen > 1) 482c4f02a89SMax Khon conv = 0; 483c4f02a89SMax Khon goto done; 484952a6212SJordan K. Hubbard } 485952a6212SJordan K. Hubbard 486952a6212SJordan K. Hubbard /* 487952a6212SJordan K. Hubbard * Now insert the generation number into the filename part 488952a6212SJordan K. Hubbard */ 489011cdb57SDmitrij Tejblum if (gen == 0) 490c4f02a89SMax Khon goto done; 491952a6212SJordan K. Hubbard for (wcp = gentext + sizeof(gentext); wcp > gentext && gen; gen /= 10) 492952a6212SJordan K. Hubbard *--wcp = gen % 10 + '0'; 493c4f02a89SMax Khon if (gen) { 494c4f02a89SMax Khon conv = 0; 495c4f02a89SMax Khon goto done; 496c4f02a89SMax Khon } 497952a6212SJordan K. Hubbard for (i = 8; dn[--i] == ' ';); 498952a6212SJordan K. Hubbard i++; 499952a6212SJordan K. Hubbard if (gentext + sizeof(gentext) - wcp + 1 > 8 - i) 500952a6212SJordan K. Hubbard i = 8 - (gentext + sizeof(gentext) - wcp + 1); 501c4f02a89SMax Khon /* 502c4f02a89SMax Khon * Correct posision to where insert the generation number 503c4f02a89SMax Khon */ 504c4f02a89SMax Khon cp = dn; 505c4f02a89SMax Khon i -= mbsadjpos((const char**)&cp, i, unlen, 1, pmp->pm_flags, pmp->pm_d2u); 506c4f02a89SMax Khon 507952a6212SJordan K. Hubbard dn[i++] = '~'; 508952a6212SJordan K. Hubbard while (wcp < gentext + sizeof(gentext)) 509952a6212SJordan K. Hubbard dn[i++] = *wcp++; 510c4f02a89SMax Khon 511c4f02a89SMax Khon /* 512c4f02a89SMax Khon * Tail of the filename should be space 513c4f02a89SMax Khon */ 514c4f02a89SMax Khon while (i < 8) 515c4f02a89SMax Khon dn[i++] = ' '; 516c4f02a89SMax Khon conv = 3; 517c4f02a89SMax Khon 518c4f02a89SMax Khon done: 519c4f02a89SMax Khon /* 520c4f02a89SMax Khon * The first character cannot be E5, 521c4f02a89SMax Khon * because that means a deleted entry 522c4f02a89SMax Khon */ 523c4f02a89SMax Khon if (dn[0] == 0xe5) 524c4f02a89SMax Khon dn[0] = SLOT_E5; 525c4f02a89SMax Khon 526c4f02a89SMax Khon return conv; 527952a6212SJordan K. Hubbard } 528952a6212SJordan K. Hubbard 529952a6212SJordan K. Hubbard /* 530952a6212SJordan K. Hubbard * Create a Win95 long name directory entry 531952a6212SJordan K. Hubbard * Note: assumes that the filename is valid, 532952a6212SJordan K. Hubbard * i.e. doesn't consist solely of blanks and dots 533952a6212SJordan K. Hubbard */ 534952a6212SJordan K. Hubbard int 535c4f02a89SMax Khon unix2winfn(un, unlen, wep, cnt, chksum, pmp) 536952a6212SJordan K. Hubbard const u_char *un; 537bddcdc51STim J. Robbins size_t unlen; 538952a6212SJordan K. Hubbard struct winentry *wep; 539952a6212SJordan K. Hubbard int cnt; 540952a6212SJordan K. Hubbard int chksum; 541c4f02a89SMax Khon struct msdosfsmount *pmp; 542952a6212SJordan K. Hubbard { 543952a6212SJordan K. Hubbard u_int8_t *wcp; 544c4f02a89SMax Khon int i, end; 54513df76f2SAndrey A. Chernov u_int16_t code; 546952a6212SJordan K. Hubbard 547952a6212SJordan K. Hubbard /* 548952a6212SJordan K. Hubbard * Drop trailing blanks and dots 549952a6212SJordan K. Hubbard */ 550c4f02a89SMax Khon unlen = winLenFixup(un, unlen); 551952a6212SJordan K. Hubbard 552c4f02a89SMax Khon /* 553c4f02a89SMax Khon * Cut *un for this slot 554c4f02a89SMax Khon */ 555c4f02a89SMax Khon unlen = mbsadjpos((const char **)&un, unlen, (cnt - 1) * WIN_CHARS, 2, 556c4f02a89SMax Khon pmp->pm_flags, pmp->pm_u2w); 557952a6212SJordan K. Hubbard 558952a6212SJordan K. Hubbard /* 559952a6212SJordan K. Hubbard * Initialize winentry to some useful default 560952a6212SJordan K. Hubbard */ 561952a6212SJordan K. Hubbard for (wcp = (u_int8_t *)wep, i = sizeof(*wep); --i >= 0; *wcp++ = 0xff); 562952a6212SJordan K. Hubbard wep->weCnt = cnt; 563952a6212SJordan K. Hubbard wep->weAttributes = ATTR_WIN95; 564952a6212SJordan K. Hubbard wep->weReserved1 = 0; 565952a6212SJordan K. Hubbard wep->weChksum = chksum; 566952a6212SJordan K. Hubbard wep->weReserved2 = 0; 567952a6212SJordan K. Hubbard 568952a6212SJordan K. Hubbard /* 569952a6212SJordan K. Hubbard * Now convert the filename parts 570952a6212SJordan K. Hubbard */ 571c4f02a89SMax Khon end = 0; 572c4f02a89SMax Khon for (wcp = wep->wePart1, i = sizeof(wep->wePart1)/2; --i >= 0 && !end;) { 573bddcdc51STim J. Robbins code = unix2winchr(&un, &unlen, 0, pmp); 57413df76f2SAndrey A. Chernov *wcp++ = code; 57513df76f2SAndrey A. Chernov *wcp++ = code >> 8; 576c4f02a89SMax Khon if (!code) 577c4f02a89SMax Khon end = WIN_LAST; 578952a6212SJordan K. Hubbard } 579c4f02a89SMax Khon for (wcp = wep->wePart2, i = sizeof(wep->wePart2)/2; --i >= 0 && !end;) { 580bddcdc51STim J. Robbins code = unix2winchr(&un, &unlen, 0, pmp); 58113df76f2SAndrey A. Chernov *wcp++ = code; 58213df76f2SAndrey A. Chernov *wcp++ = code >> 8; 583c4f02a89SMax Khon if (!code) 584c4f02a89SMax Khon end = WIN_LAST; 585952a6212SJordan K. Hubbard } 586c4f02a89SMax Khon for (wcp = wep->wePart3, i = sizeof(wep->wePart3)/2; --i >= 0 && !end;) { 587bddcdc51STim J. Robbins code = unix2winchr(&un, &unlen, 0, pmp); 58813df76f2SAndrey A. Chernov *wcp++ = code; 58913df76f2SAndrey A. Chernov *wcp++ = code >> 8; 590c4f02a89SMax Khon if (!code) 591c4f02a89SMax Khon end = WIN_LAST; 592952a6212SJordan K. Hubbard } 593c4f02a89SMax Khon if (*un == '\0') 594c4f02a89SMax Khon end = WIN_LAST; 595c4f02a89SMax Khon wep->weCnt |= end; 596c4f02a89SMax Khon return !end; 5974d63452fSAndrey A. Chernov } 5984d63452fSAndrey A. Chernov 599952a6212SJordan K. Hubbard /* 600952a6212SJordan K. Hubbard * Compare our filename to the one in the Win95 entry 601952a6212SJordan K. Hubbard * Returns the checksum or -1 if no match 602952a6212SJordan K. Hubbard */ 603952a6212SJordan K. Hubbard int 604c4f02a89SMax Khon winChkName(un, unlen, chksum, pmp) 605952a6212SJordan K. Hubbard const u_char *un; 606bddcdc51STim J. Robbins size_t unlen; 607952a6212SJordan K. Hubbard int chksum; 608c4f02a89SMax Khon struct msdosfsmount *pmp; 609952a6212SJordan K. Hubbard { 610bddcdc51STim J. Robbins size_t len; 611c4f02a89SMax Khon u_int16_t c1, c2; 612c4f02a89SMax Khon u_char *np; 613c4f02a89SMax Khon struct dirent dirbuf; 614952a6212SJordan K. Hubbard 615952a6212SJordan K. Hubbard /* 616c4f02a89SMax Khon * We alread have winentry in mbnambuf 617952a6212SJordan K. Hubbard */ 618c4f02a89SMax Khon if (!mbnambuf_flush(&dirbuf) || !dirbuf.d_namlen) 619952a6212SJordan K. Hubbard return -1; 620952a6212SJordan K. Hubbard 621c4f02a89SMax Khon #ifdef MSDOSFS_DEBUG 622c4f02a89SMax Khon printf("winChkName(): un=%s:%d,d_name=%s:%d\n", un, unlen, 623c4f02a89SMax Khon dirbuf.d_name, 624c4f02a89SMax Khon dirbuf.d_namlen); 625c4f02a89SMax Khon #endif 626952a6212SJordan K. Hubbard 627952a6212SJordan K. Hubbard /* 628952a6212SJordan K. Hubbard * Compare the name parts 629952a6212SJordan K. Hubbard */ 630c4f02a89SMax Khon len = dirbuf.d_namlen; 631c4f02a89SMax Khon if (unlen != len) 632c4f02a89SMax Khon return -2; 633c4f02a89SMax Khon 634c4f02a89SMax Khon for (np = dirbuf.d_name; unlen > 0 && len > 0;) { 635c4f02a89SMax Khon /* 6360f4e4130SMax Khon * Comparison must be case insensitive, because FAT disallows 6370f4e4130SMax Khon * to look up or create files in case sensitive even when 6380f4e4130SMax Khon * it's a long file name. 639c4f02a89SMax Khon */ 640bddcdc51STim J. Robbins c1 = unix2winchr((const u_char **)&np, &len, LCASE_BASE, pmp); 641bddcdc51STim J. Robbins c2 = unix2winchr(&un, &unlen, LCASE_BASE, pmp); 642b998efa9SAndrey A. Chernov if (c1 != c2) 643c4f02a89SMax Khon return -2; 644952a6212SJordan K. Hubbard } 645952a6212SJordan K. Hubbard return chksum; 646952a6212SJordan K. Hubbard } 647952a6212SJordan K. Hubbard 648952a6212SJordan K. Hubbard /* 649952a6212SJordan K. Hubbard * Convert Win95 filename to dirbuf. 650952a6212SJordan K. Hubbard * Returns the checksum or -1 if impossible 651952a6212SJordan K. Hubbard */ 652952a6212SJordan K. Hubbard int 653c4f02a89SMax Khon win2unixfn(wep, chksum, pmp) 654952a6212SJordan K. Hubbard struct winentry *wep; 655952a6212SJordan K. Hubbard int chksum; 656c4f02a89SMax Khon struct msdosfsmount *pmp; 657952a6212SJordan K. Hubbard { 658952a6212SJordan K. Hubbard u_int8_t *cp; 659c4f02a89SMax Khon u_int8_t *np, name[WIN_CHARS * 2 + 1]; 6602b5b6623SAndrey A. Chernov u_int16_t code; 661952a6212SJordan K. Hubbard int i; 662952a6212SJordan K. Hubbard 663952a6212SJordan K. Hubbard if ((wep->weCnt&WIN_CNT) > howmany(WIN_MAXLEN, WIN_CHARS) 664952a6212SJordan K. Hubbard || !(wep->weCnt&WIN_CNT)) 665952a6212SJordan K. Hubbard return -1; 666952a6212SJordan K. Hubbard 667952a6212SJordan K. Hubbard /* 668952a6212SJordan K. Hubbard * First compare checksums 669952a6212SJordan K. Hubbard */ 670952a6212SJordan K. Hubbard if (wep->weCnt&WIN_LAST) { 671952a6212SJordan K. Hubbard chksum = wep->weChksum; 672952a6212SJordan K. Hubbard } else if (chksum != wep->weChksum) 673952a6212SJordan K. Hubbard chksum = -1; 674952a6212SJordan K. Hubbard if (chksum == -1) 675952a6212SJordan K. Hubbard return -1; 676952a6212SJordan K. Hubbard 677952a6212SJordan K. Hubbard /* 678952a6212SJordan K. Hubbard * Convert the name parts 679952a6212SJordan K. Hubbard */ 680c4f02a89SMax Khon np = name; 681952a6212SJordan K. Hubbard for (cp = wep->wePart1, i = sizeof(wep->wePart1)/2; --i >= 0;) { 6822b5b6623SAndrey A. Chernov code = (cp[1] << 8) | cp[0]; 6832b5b6623SAndrey A. Chernov switch (code) { 684952a6212SJordan K. Hubbard case 0: 6852b5b6623SAndrey A. Chernov *np = '\0'; 686c4f02a89SMax Khon mbnambuf_write(name, (wep->weCnt & WIN_CNT) - 1); 687952a6212SJordan K. Hubbard return chksum; 688952a6212SJordan K. Hubbard case '/': 6892b5b6623SAndrey A. Chernov *np = '\0'; 690952a6212SJordan K. Hubbard return -1; 6912b5b6623SAndrey A. Chernov default: 692c4f02a89SMax Khon code = win2unixchr(code, pmp); 693c4f02a89SMax Khon if (code & 0xff00) 694c4f02a89SMax Khon *np++ = code >> 8; 6952b5b6623SAndrey A. Chernov *np++ = code; 6962b5b6623SAndrey A. Chernov break; 697952a6212SJordan K. Hubbard } 6982b5b6623SAndrey A. Chernov cp += 2; 699952a6212SJordan K. Hubbard } 700952a6212SJordan K. Hubbard for (cp = wep->wePart2, i = sizeof(wep->wePart2)/2; --i >= 0;) { 7012b5b6623SAndrey A. Chernov code = (cp[1] << 8) | cp[0]; 7022b5b6623SAndrey A. Chernov switch (code) { 703952a6212SJordan K. Hubbard case 0: 7042b5b6623SAndrey A. Chernov *np = '\0'; 705c4f02a89SMax Khon mbnambuf_write(name, (wep->weCnt & WIN_CNT) - 1); 706952a6212SJordan K. Hubbard return chksum; 707952a6212SJordan K. Hubbard case '/': 7082b5b6623SAndrey A. Chernov *np = '\0'; 709952a6212SJordan K. Hubbard return -1; 7102b5b6623SAndrey A. Chernov default: 711c4f02a89SMax Khon code = win2unixchr(code, pmp); 712c4f02a89SMax Khon if (code & 0xff00) 713c4f02a89SMax Khon *np++ = code >> 8; 7142b5b6623SAndrey A. Chernov *np++ = code; 7152b5b6623SAndrey A. Chernov break; 716952a6212SJordan K. Hubbard } 7172b5b6623SAndrey A. Chernov cp += 2; 718952a6212SJordan K. Hubbard } 719952a6212SJordan K. Hubbard for (cp = wep->wePart3, i = sizeof(wep->wePart3)/2; --i >= 0;) { 7202b5b6623SAndrey A. Chernov code = (cp[1] << 8) | cp[0]; 7212b5b6623SAndrey A. Chernov switch (code) { 722952a6212SJordan K. Hubbard case 0: 7232b5b6623SAndrey A. Chernov *np = '\0'; 724c4f02a89SMax Khon mbnambuf_write(name, (wep->weCnt & WIN_CNT) - 1); 725952a6212SJordan K. Hubbard return chksum; 726952a6212SJordan K. Hubbard case '/': 7272b5b6623SAndrey A. Chernov *np = '\0'; 728952a6212SJordan K. Hubbard return -1; 7292b5b6623SAndrey A. Chernov default: 730c4f02a89SMax Khon code = win2unixchr(code, pmp); 731c4f02a89SMax Khon if (code & 0xff00) 732c4f02a89SMax Khon *np++ = code >> 8; 7332b5b6623SAndrey A. Chernov *np++ = code; 7342b5b6623SAndrey A. Chernov break; 735952a6212SJordan K. Hubbard } 7362b5b6623SAndrey A. Chernov cp += 2; 737952a6212SJordan K. Hubbard } 738c4f02a89SMax Khon *np = '\0'; 739c4f02a89SMax Khon mbnambuf_write(name, (wep->weCnt & WIN_CNT) - 1); 740952a6212SJordan K. Hubbard return chksum; 741952a6212SJordan K. Hubbard } 742952a6212SJordan K. Hubbard 743952a6212SJordan K. Hubbard /* 7442a05fbb9SNate Lawson * Compute the unrolled checksum of a DOS filename for Win95 LFN use. 745952a6212SJordan K. Hubbard */ 746952a6212SJordan K. Hubbard u_int8_t 747710a9accSMax Khon winChksum(struct direntry *dep) 748952a6212SJordan K. Hubbard { 749952a6212SJordan K. Hubbard u_int8_t s; 750952a6212SJordan K. Hubbard 751710a9accSMax Khon s = dep->deName[0]; 752710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deName[1]; 753710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deName[2]; 754710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deName[3]; 755710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deName[4]; 756710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deName[5]; 757710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deName[6]; 758710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deName[7]; 759710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deExtension[0]; 760710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deExtension[1]; 761710a9accSMax Khon s = ((s << 7) | (s >> 1)) + dep->deExtension[2]; 7622a05fbb9SNate Lawson 7632a05fbb9SNate Lawson return (s); 764952a6212SJordan K. Hubbard } 765952a6212SJordan K. Hubbard 766952a6212SJordan K. Hubbard /* 767952a6212SJordan K. Hubbard * Determine the number of slots necessary for Win95 names 768952a6212SJordan K. Hubbard */ 769952a6212SJordan K. Hubbard int 770c4f02a89SMax Khon winSlotCnt(un, unlen, pmp) 771952a6212SJordan K. Hubbard const u_char *un; 772bddcdc51STim J. Robbins size_t unlen; 773c4f02a89SMax Khon struct msdosfsmount *pmp; 774952a6212SJordan K. Hubbard { 775c4f02a89SMax Khon size_t wlen; 776c4f02a89SMax Khon char wn[WIN_MAXLEN * 2 + 1], *wnp; 777c4f02a89SMax Khon 77869a36f24SMike Smith unlen = winLenFixup(un, unlen); 779c4f02a89SMax Khon 780c4f02a89SMax Khon if (pmp->pm_flags & MSDOSFSMNT_KICONV && msdosfs_iconv) { 781c4f02a89SMax Khon wlen = WIN_MAXLEN * 2; 782c4f02a89SMax Khon wnp = wn; 783bddcdc51STim J. Robbins msdosfs_iconv->conv(pmp->pm_u2w, (const char **)&un, &unlen, &wnp, &wlen); 784c4f02a89SMax Khon if (unlen > 0) 785c4f02a89SMax Khon return 0; 786c4f02a89SMax Khon return howmany(WIN_MAXLEN - wlen/2, WIN_CHARS); 787c4f02a89SMax Khon } 788c4f02a89SMax Khon 789952a6212SJordan K. Hubbard if (unlen > WIN_MAXLEN) 790952a6212SJordan K. Hubbard return 0; 791952a6212SJordan K. Hubbard return howmany(unlen, WIN_CHARS); 79227a0bc89SDoug Rabson } 79369a36f24SMike Smith 79469a36f24SMike Smith /* 79569a36f24SMike Smith * Determine the number of bytes neccesary for Win95 names 79669a36f24SMike Smith */ 797bddcdc51STim J. Robbins size_t 79869a36f24SMike Smith winLenFixup(un, unlen) 79969a36f24SMike Smith const u_char* un; 800bddcdc51STim J. Robbins size_t unlen; 80169a36f24SMike Smith { 80269a36f24SMike Smith for (un += unlen; unlen > 0; unlen--) 80369a36f24SMike Smith if (*--un != ' ' && *un != '.') 80469a36f24SMike Smith break; 80569a36f24SMike Smith return unlen; 80669a36f24SMike Smith } 807c4f02a89SMax Khon 808c4f02a89SMax Khon /* 809c4f02a89SMax Khon * Store an area with multi byte string instr, and reterns left 810c4f02a89SMax Khon * byte of instr and moves pointer forward. The area's size is 811c4f02a89SMax Khon * inlen or outlen. 812c4f02a89SMax Khon */ 813c4f02a89SMax Khon static int 814bddcdc51STim J. Robbins mbsadjpos(const char **instr, size_t inlen, size_t outlen, int weight, int flag, void *handle) 815c4f02a89SMax Khon { 816c4f02a89SMax Khon char *outp, outstr[outlen * weight + 1]; 817c4f02a89SMax Khon 818c4f02a89SMax Khon if (flag & MSDOSFSMNT_KICONV && msdosfs_iconv) { 819c4f02a89SMax Khon outp = outstr; 820c4f02a89SMax Khon outlen *= weight; 821bddcdc51STim J. Robbins msdosfs_iconv->conv(handle, instr, &inlen, &outp, &outlen); 822c4f02a89SMax Khon return (inlen); 823c4f02a89SMax Khon } 824c4f02a89SMax Khon 825c4f02a89SMax Khon (*instr) += min(inlen, outlen); 826c4f02a89SMax Khon return (inlen - min(inlen, outlen)); 827c4f02a89SMax Khon } 828c4f02a89SMax Khon 829c4f02a89SMax Khon /* 830c4f02a89SMax Khon * Convert DOS char to Local char 831c4f02a89SMax Khon */ 832c4f02a89SMax Khon static u_int16_t 833c4f02a89SMax Khon dos2unixchr(const u_char **instr, size_t *ilen, int lower, struct msdosfsmount *pmp) 834c4f02a89SMax Khon { 835c4f02a89SMax Khon u_char c; 836c4f02a89SMax Khon char *outp, outbuf[3]; 837c4f02a89SMax Khon u_int16_t wc; 838c4f02a89SMax Khon size_t len, olen; 839c4f02a89SMax Khon 840c4f02a89SMax Khon if (pmp->pm_flags & MSDOSFSMNT_KICONV && msdosfs_iconv) { 841c4f02a89SMax Khon olen = len = 2; 842c4f02a89SMax Khon outp = outbuf; 843c4f02a89SMax Khon 844c4f02a89SMax Khon if (lower & (LCASE_BASE | LCASE_EXT)) 845c4f02a89SMax Khon msdosfs_iconv->convchr_case(pmp->pm_d2u, (const char **)instr, 846c4f02a89SMax Khon ilen, &outp, &olen, KICONV_LOWER); 847c4f02a89SMax Khon else 848c4f02a89SMax Khon msdosfs_iconv->convchr(pmp->pm_d2u, (const char **)instr, 849c4f02a89SMax Khon ilen, &outp, &olen); 850c4f02a89SMax Khon len -= olen; 851c4f02a89SMax Khon 852c4f02a89SMax Khon /* 853c4f02a89SMax Khon * return '?' if failed to convert 854c4f02a89SMax Khon */ 855c4f02a89SMax Khon if (len == 0) { 856c4f02a89SMax Khon (*ilen)--; 857c4f02a89SMax Khon (*instr)++; 858c4f02a89SMax Khon return ('?'); 859c4f02a89SMax Khon } 860c4f02a89SMax Khon 861c4f02a89SMax Khon wc = 0; 862c4f02a89SMax Khon while(len--) 863c4f02a89SMax Khon wc |= (*(outp - len - 1) & 0xff) << (len << 3); 864c4f02a89SMax Khon return (wc); 865c4f02a89SMax Khon } 866c4f02a89SMax Khon 867c4f02a89SMax Khon (*ilen)--; 868c4f02a89SMax Khon c = *(*instr)++; 869c4f02a89SMax Khon c = dos2unix[c]; 870c4f02a89SMax Khon if (lower & (LCASE_BASE | LCASE_EXT)) 871c4f02a89SMax Khon c = u2l[c]; 872c4f02a89SMax Khon return ((u_int16_t)c); 873c4f02a89SMax Khon } 874c4f02a89SMax Khon 875c4f02a89SMax Khon /* 876c4f02a89SMax Khon * Convert Local char to DOS char 877c4f02a89SMax Khon */ 878c4f02a89SMax Khon static u_int16_t 879c4f02a89SMax Khon unix2doschr(const u_char **instr, size_t *ilen, struct msdosfsmount *pmp) 880c4f02a89SMax Khon { 881c4f02a89SMax Khon u_char c; 882c4f02a89SMax Khon char *up, *outp, unicode[3], outbuf[3]; 883c4f02a89SMax Khon u_int16_t wc; 884697ab829SR. Imura size_t len, ucslen, unixlen, olen; 885c4f02a89SMax Khon 886c4f02a89SMax Khon if (pmp->pm_flags & MSDOSFSMNT_KICONV && msdosfs_iconv) { 887c4f02a89SMax Khon /* 888c4f02a89SMax Khon * to hide an invisible character, using a unicode filter 889c4f02a89SMax Khon */ 890697ab829SR. Imura ucslen = 2; 891c4f02a89SMax Khon len = *ilen; 892c4f02a89SMax Khon up = unicode; 893c4f02a89SMax Khon msdosfs_iconv->convchr(pmp->pm_u2w, (const char **)instr, 894697ab829SR. Imura ilen, &up, &ucslen); 895697ab829SR. Imura unixlen = len - *ilen; 896c4f02a89SMax Khon 897c4f02a89SMax Khon /* 898c4f02a89SMax Khon * cannot be converted 899c4f02a89SMax Khon */ 900697ab829SR. Imura if (unixlen == 0) { 901c4f02a89SMax Khon (*ilen)--; 902c4f02a89SMax Khon (*instr)++; 903c4f02a89SMax Khon return (0); 904c4f02a89SMax Khon } 905c4f02a89SMax Khon 906c4f02a89SMax Khon /* 907c4f02a89SMax Khon * return magic number for ascii char 908c4f02a89SMax Khon */ 909697ab829SR. Imura if (unixlen == 1) { 910c4f02a89SMax Khon c = *(*instr -1); 911c4f02a89SMax Khon if (! (c & 0x80)) { 912c4f02a89SMax Khon c = unix2dos[c]; 913c4f02a89SMax Khon if (c <= 2) 914c4f02a89SMax Khon return (c); 915c4f02a89SMax Khon } 916c4f02a89SMax Khon } 917c4f02a89SMax Khon 918c4f02a89SMax Khon /* 919c4f02a89SMax Khon * now convert using libiconv 920c4f02a89SMax Khon */ 921697ab829SR. Imura *instr -= unixlen; 922697ab829SR. Imura *ilen = len; 923c4f02a89SMax Khon 924c4f02a89SMax Khon olen = len = 2; 925c4f02a89SMax Khon outp = outbuf; 926c4f02a89SMax Khon msdosfs_iconv->convchr_case(pmp->pm_u2d, (const char **)instr, 927c4f02a89SMax Khon ilen, &outp, &olen, KICONV_FROM_UPPER); 928c4f02a89SMax Khon len -= olen; 929697ab829SR. Imura 930697ab829SR. Imura /* 931697ab829SR. Imura * cannot be converted, but has unicode char, should return magic number 932697ab829SR. Imura */ 933697ab829SR. Imura if (len == 0) { 934697ab829SR. Imura (*ilen) -= unixlen; 935697ab829SR. Imura (*instr) += unixlen; 936697ab829SR. Imura return (1); 937697ab829SR. Imura } 938697ab829SR. Imura 939c4f02a89SMax Khon wc = 0; 940c4f02a89SMax Khon while(len--) 941c4f02a89SMax Khon wc |= (*(outp - len - 1) & 0xff) << (len << 3); 942c4f02a89SMax Khon return (wc); 943c4f02a89SMax Khon } 944c4f02a89SMax Khon 945c4f02a89SMax Khon (*ilen)--; 946c4f02a89SMax Khon c = *(*instr)++; 947c4f02a89SMax Khon c = l2u[c]; 948c4f02a89SMax Khon c = unix2dos[c]; 949c4f02a89SMax Khon return ((u_int16_t)c); 950c4f02a89SMax Khon } 951c4f02a89SMax Khon 952c4f02a89SMax Khon /* 953c4f02a89SMax Khon * Convert Windows char to Local char 954c4f02a89SMax Khon */ 955c4f02a89SMax Khon static u_int16_t 956c4f02a89SMax Khon win2unixchr(u_int16_t wc, struct msdosfsmount *pmp) 957c4f02a89SMax Khon { 958c4f02a89SMax Khon u_char *inp, *outp, inbuf[3], outbuf[3]; 959c4f02a89SMax Khon size_t ilen, olen, len; 960c4f02a89SMax Khon 961c4f02a89SMax Khon if (wc == 0) 962c4f02a89SMax Khon return (0); 963c4f02a89SMax Khon 964c4f02a89SMax Khon if (pmp->pm_flags & MSDOSFSMNT_KICONV && msdosfs_iconv) { 965c4f02a89SMax Khon inbuf[0] = (u_char)(wc>>8); 966c4f02a89SMax Khon inbuf[1] = (u_char)wc; 967c4f02a89SMax Khon inbuf[2] = '\0'; 968c4f02a89SMax Khon 969c4f02a89SMax Khon ilen = olen = len = 2; 970c4f02a89SMax Khon inp = inbuf; 971c4f02a89SMax Khon outp = outbuf; 972c4f02a89SMax Khon msdosfs_iconv->convchr(pmp->pm_w2u, (const char **)&inp, &ilen, 973c4f02a89SMax Khon (char **)&outp, &olen); 974c4f02a89SMax Khon len -= olen; 975c4f02a89SMax Khon 976c4f02a89SMax Khon /* 977c4f02a89SMax Khon * return '?' if failed to convert 978c4f02a89SMax Khon */ 979c4f02a89SMax Khon if (len == 0) { 980c4f02a89SMax Khon wc = '?'; 981c4f02a89SMax Khon return (wc); 982c4f02a89SMax Khon } 983c4f02a89SMax Khon 984c4f02a89SMax Khon wc = 0; 985c4f02a89SMax Khon while(len--) 986c4f02a89SMax Khon wc |= (*(outp - len - 1) & 0xff) << (len << 3); 987c4f02a89SMax Khon return (wc); 988c4f02a89SMax Khon } 989c4f02a89SMax Khon 990c4f02a89SMax Khon if (wc & 0xff00) 991c4f02a89SMax Khon wc = '?'; 992c4f02a89SMax Khon 993c4f02a89SMax Khon return (wc); 994c4f02a89SMax Khon } 995c4f02a89SMax Khon 996c4f02a89SMax Khon /* 997c4f02a89SMax Khon * Convert Local char to Windows char 998c4f02a89SMax Khon */ 999c4f02a89SMax Khon static u_int16_t 1000c4f02a89SMax Khon unix2winchr(const u_char **instr, size_t *ilen, int lower, struct msdosfsmount *pmp) 1001c4f02a89SMax Khon { 1002c4f02a89SMax Khon u_char *outp, outbuf[3]; 1003c4f02a89SMax Khon u_int16_t wc; 1004c4f02a89SMax Khon size_t olen; 1005c4f02a89SMax Khon 1006c4f02a89SMax Khon if (*ilen == 0) 1007c4f02a89SMax Khon return (0); 1008c4f02a89SMax Khon 1009c4f02a89SMax Khon if (pmp->pm_flags & MSDOSFSMNT_KICONV && msdosfs_iconv) { 1010c4f02a89SMax Khon outp = outbuf; 1011c4f02a89SMax Khon olen = 2; 1012c4f02a89SMax Khon if (lower & (LCASE_BASE | LCASE_EXT)) 1013c4f02a89SMax Khon msdosfs_iconv->convchr_case(pmp->pm_u2w, (const char **)instr, 1014c4f02a89SMax Khon ilen, (char **)&outp, &olen, 1015c4f02a89SMax Khon KICONV_FROM_LOWER); 1016c4f02a89SMax Khon else 1017c4f02a89SMax Khon msdosfs_iconv->convchr(pmp->pm_u2w, (const char **)instr, 1018c4f02a89SMax Khon ilen, (char **)&outp, &olen); 1019c4f02a89SMax Khon 1020c4f02a89SMax Khon /* 1021c4f02a89SMax Khon * return '0' if end of filename 1022c4f02a89SMax Khon */ 1023c4f02a89SMax Khon if (olen == 2) 1024c4f02a89SMax Khon return (0); 1025c4f02a89SMax Khon 1026c4f02a89SMax Khon wc = (outbuf[0]<<8) | outbuf[1]; 1027c4f02a89SMax Khon 1028c4f02a89SMax Khon return (wc); 1029c4f02a89SMax Khon } 1030c4f02a89SMax Khon 1031c4f02a89SMax Khon (*ilen)--; 1032c4f02a89SMax Khon wc = (*instr)[0]; 1033c4f02a89SMax Khon if (lower & (LCASE_BASE | LCASE_EXT)) 1034c4f02a89SMax Khon wc = u2l[wc]; 1035c4f02a89SMax Khon (*instr)++; 1036c4f02a89SMax Khon return (wc); 1037c4f02a89SMax Khon } 1038c4f02a89SMax Khon 1039c4f02a89SMax Khon /* 10404cdb1483SNate Lawson * Initialize the temporary concatenation buffer (once) and mark it as 10414cdb1483SNate Lawson * empty on subsequent calls. 1042c4f02a89SMax Khon */ 1043c4f02a89SMax Khon void 1044c4f02a89SMax Khon mbnambuf_init(void) 1045c4f02a89SMax Khon { 1046c4f02a89SMax Khon 10474cdb1483SNate Lawson if (nambuf_ptr == NULL) { 10484cdb1483SNate Lawson nambuf_ptr = malloc(MAXNAMLEN + 1, M_MSDOSFSMNT, M_WAITOK); 10494cdb1483SNate Lawson nambuf_ptr[MAXNAMLEN] = '\0'; 1050c4f02a89SMax Khon } 10514cdb1483SNate Lawson nambuf_len = 0; 105258ad326bSNate Lawson nambuf_last_id = -1; 1053c4f02a89SMax Khon } 1054c4f02a89SMax Khon 1055c4f02a89SMax Khon /* 105658ad326bSNate Lawson * Fill out our concatenation buffer with the given substring, at the offset 105758ad326bSNate Lawson * specified by its id. Since this function must be called with ids in 105858ad326bSNate Lawson * descending order, we take advantage of the fact that ASCII substrings are 105958ad326bSNate Lawson * exactly WIN_CHARS in length. For non-ASCII substrings, we shift all 106058ad326bSNate Lawson * previous (i.e. higher id) substrings upwards to make room for this one. 106158ad326bSNate Lawson * This only penalizes portions of substrings that contain more than 106258ad326bSNate Lawson * WIN_CHARS bytes when they are first encountered. 1063c4f02a89SMax Khon */ 1064c4f02a89SMax Khon void 1065c4f02a89SMax Khon mbnambuf_write(char *name, int id) 1066c4f02a89SMax Khon { 10674cdb1483SNate Lawson size_t count; 106858ad326bSNate Lawson char *slot; 10694cdb1483SNate Lawson 107058ad326bSNate Lawson KASSERT(nambuf_len == 0 || id == nambuf_last_id - 1, 107158ad326bSNate Lawson ("non-decreasing id, id %d last id %d", id, nambuf_last_id)); 107258ad326bSNate Lawson 107358ad326bSNate Lawson /* Store this substring in a WIN_CHAR-aligned slot. */ 107458ad326bSNate Lawson slot = nambuf_ptr + (id * WIN_CHARS); 10754cdb1483SNate Lawson count = strlen(name); 107658ad326bSNate Lawson if (nambuf_len + count > MAXNAMLEN) { 107758ad326bSNate Lawson printf("msdosfs: file name %zu too long\n", nambuf_len + count); 10784cdb1483SNate Lawson return; 1079c4f02a89SMax Khon } 108058ad326bSNate Lawson 108158ad326bSNate Lawson /* Shift suffix upwards by the amount length exceeds WIN_CHARS. */ 108258ad326bSNate Lawson if (count > WIN_CHARS && nambuf_len != 0) 108358ad326bSNate Lawson bcopy(slot + WIN_CHARS, slot + count, nambuf_len); 108458ad326bSNate Lawson 108558ad326bSNate Lawson /* Copy in the substring to its slot and update length so far. */ 108658ad326bSNate Lawson bcopy(name, slot, count); 108758ad326bSNate Lawson nambuf_len += count; 108858ad326bSNate Lawson nambuf_last_id = id; 1089c4f02a89SMax Khon } 1090c4f02a89SMax Khon 1091c4f02a89SMax Khon /* 10924cdb1483SNate Lawson * Take the completed string and use it to setup the struct dirent. 10934cdb1483SNate Lawson * Be sure to always nul-terminate the d_name and then copy the string 10944cdb1483SNate Lawson * from our buffer. Note that this function assumes the full string has 10954cdb1483SNate Lawson * been reassembled in the buffer. If it's called before all substrings 10964cdb1483SNate Lawson * have been written via mbnambuf_write(), the result will be incorrect. 1097c4f02a89SMax Khon */ 1098c4f02a89SMax Khon char * 1099c4f02a89SMax Khon mbnambuf_flush(struct dirent *dp) 1100c4f02a89SMax Khon { 1101c4f02a89SMax Khon 11024cdb1483SNate Lawson if (nambuf_len > sizeof(dp->d_name) - 1) { 1103c4f02a89SMax Khon mbnambuf_init(); 1104c4f02a89SMax Khon return (NULL); 1105c4f02a89SMax Khon } 110658ad326bSNate Lawson bcopy(nambuf_ptr, dp->d_name, nambuf_len); 1107d81812beSNate Lawson dp->d_name[nambuf_len] = '\0'; 11084cdb1483SNate Lawson dp->d_namlen = nambuf_len; 11094cdb1483SNate Lawson 1110c4f02a89SMax Khon mbnambuf_init(); 1111c4f02a89SMax Khon return (dp->d_name); 1112c4f02a89SMax Khon } 1113