msdosfs_conv.c revision 33745
133745Sache/* $Id: msdosfs_conv.c,v 1.16 1998/02/22 12:05:42 ache Exp $ */ 233548Sjkh/* $NetBSD: msdosfs_conv.c,v 1.25 1997/11/17 15:36:40 ws Exp $ */ 32893Sdfr 433548Sjkh/*- 533548Sjkh * Copyright (C) 1995, 1997 Wolfgang Solfrank. 633548Sjkh * Copyright (C) 1995, 1997 TooLs GmbH. 733548Sjkh * All rights reserved. 833548Sjkh * Original code by Paul Popelka (paulp@uts.amdahl.com) (see below). 933548Sjkh * 1033548Sjkh * Redistribution and use in source and binary forms, with or without 1133548Sjkh * modification, are permitted provided that the following conditions 1233548Sjkh * are met: 1333548Sjkh * 1. Redistributions of source code must retain the above copyright 1433548Sjkh * notice, this list of conditions and the following disclaimer. 1533548Sjkh * 2. Redistributions in binary form must reproduce the above copyright 1633548Sjkh * notice, this list of conditions and the following disclaimer in the 1733548Sjkh * documentation and/or other materials provided with the distribution. 1833548Sjkh * 3. All advertising materials mentioning features or use of this software 1933548Sjkh * must display the following acknowledgement: 2033548Sjkh * This product includes software developed by TooLs GmbH. 2133548Sjkh * 4. The name of TooLs GmbH may not be used to endorse or promote products 2233548Sjkh * derived from this software without specific prior written permission. 2333548Sjkh * 2433548Sjkh * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 2533548Sjkh * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2633548Sjkh * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2733548Sjkh * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2833548Sjkh * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 2933548Sjkh * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 3033548Sjkh * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 3133548Sjkh * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 3233548Sjkh * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 3333548Sjkh * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3433548Sjkh */ 352893Sdfr/* 362893Sdfr * Written by Paul Popelka (paulp@uts.amdahl.com) 378876Srgrimes * 382893Sdfr * You can do anything you want with this software, just don't say you wrote 392893Sdfr * it, and don't remove this notice. 408876Srgrimes * 412893Sdfr * This software is provided "as is". 428876Srgrimes * 432893Sdfr * The author supplies this software to be publicly redistributed on the 442893Sdfr * understanding that the author is not responsible for the correct 452893Sdfr * functioning of this software in any circumstances and is not liable for 462893Sdfr * any damages caused by this software. 478876Srgrimes * 482893Sdfr * October 1992 492893Sdfr */ 502893Sdfr 512893Sdfr/* 522893Sdfr * System include files. 532893Sdfr */ 542893Sdfr#include <sys/param.h> 552893Sdfr#include <sys/time.h> 562893Sdfr#include <sys/kernel.h> /* defines tz */ 5733548Sjkh#include <sys/systm.h> 587465Sache#include <machine/clock.h> 5933548Sjkh#include <sys/dirent.h> 602893Sdfr 612893Sdfr/* 622893Sdfr * MSDOSFS include files. 632893Sdfr */ 642893Sdfr#include <msdosfs/direntry.h> 652893Sdfr 662893Sdfr/* 677465Sache * Total number of days that have passed for each month in a regular year. 682893Sdfr */ 6912144Sphkstatic u_short regyear[] = { 707465Sache 31, 59, 90, 120, 151, 181, 717465Sache 212, 243, 273, 304, 334, 365 722893Sdfr}; 732893Sdfr 742893Sdfr/* 757465Sache * Total number of days that have passed for each month in a leap year. 762893Sdfr */ 7712144Sphkstatic u_short leapyear[] = { 787465Sache 31, 60, 91, 121, 152, 182, 797465Sache 213, 244, 274, 305, 335, 366 802893Sdfr}; 812893Sdfr 822893Sdfr/* 832893Sdfr * Variables used to remember parts of the last time conversion. Maybe we 842893Sdfr * can avoid a full conversion. 852893Sdfr */ 8633181Seivindstatic u_long lasttime; 8733181Seivindstatic u_long lastday; 8833181Seivindstatic u_short lastddate; 8933181Seivindstatic u_short lastdtime; 902893Sdfr 912893Sdfr/* 922893Sdfr * Convert the unix version of time to dos's idea of time to be used in 932893Sdfr * file timestamps. The passed in unix time is assumed to be in GMT. 942893Sdfr */ 952893Sdfrvoid 9633548Sjkhunix2dostime(tsp, ddp, dtp, dhp) 972893Sdfr struct timespec *tsp; 9833548Sjkh u_int16_t *ddp; 9933548Sjkh u_int16_t *dtp; 10033548Sjkh u_int8_t *dhp; 1012893Sdfr{ 1022893Sdfr u_long t; 1032893Sdfr u_long days; 1042893Sdfr u_long inc; 1052893Sdfr u_long year; 1062893Sdfr u_long month; 1072893Sdfr u_short *months; 1082893Sdfr 1092893Sdfr /* 1102893Sdfr * If the time from the last conversion is the same as now, then 1112893Sdfr * skip the computations and use the saved result. 1122893Sdfr */ 11318397Snate t = tsp->tv_sec - (tz.tz_minuteswest * 60) 11415055Sache - (wall_cmos_clock ? adjkerntz : 0); 11515053Sache /* - daylight savings time correction */ 11633548Sjkh t &= ~1; 1172893Sdfr if (lasttime != t) { 1182893Sdfr lasttime = t; 11933548Sjkh lastdtime = (((t / 2) % 30) << DT_2SECONDS_SHIFT) 1202893Sdfr + (((t / 60) % 60) << DT_MINUTES_SHIFT) 1212893Sdfr + (((t / 3600) % 24) << DT_HOURS_SHIFT); 1222893Sdfr 1232893Sdfr /* 1242893Sdfr * If the number of days since 1970 is the same as the last 1252893Sdfr * time we did the computation then skip all this leap year 1262893Sdfr * and month stuff. 1272893Sdfr */ 1282893Sdfr days = t / (24 * 60 * 60); 1292893Sdfr if (days != lastday) { 1302893Sdfr lastday = days; 1312893Sdfr for (year = 1970;; year++) { 1322893Sdfr inc = year & 0x03 ? 365 : 366; 1332893Sdfr if (days < inc) 1342893Sdfr break; 1352893Sdfr days -= inc; 1362893Sdfr } 1372893Sdfr months = year & 0x03 ? regyear : leapyear; 13820138Sbde for (month = 0; days >= months[month]; month++) 1397465Sache ; 1407465Sache if (month > 0) 1417465Sache days -= months[month - 1]; 1422893Sdfr lastddate = ((days + 1) << DD_DAY_SHIFT) 1432893Sdfr + ((month + 1) << DD_MONTH_SHIFT); 1442893Sdfr /* 1452893Sdfr * Remember dos's idea of time is relative to 1980. 1462893Sdfr * unix's is relative to 1970. If somehow we get a 1472893Sdfr * time before 1980 then don't give totally crazy 1482893Sdfr * results. 1492893Sdfr */ 1502893Sdfr if (year > 1980) 1512893Sdfr lastddate += (year - 1980) << DD_YEAR_SHIFT; 1522893Sdfr } 1532893Sdfr } 15433548Sjkh if (dtp) 15533548Sjkh *dtp = lastdtime; 15633548Sjkh if (dhp) 15733548Sjkh *dhp = (tsp->tv_sec & 1) * 100 + tsp->tv_nsec / 10000000; 15833548Sjkh 1592893Sdfr *ddp = lastddate; 1602893Sdfr} 1612893Sdfr 1622893Sdfr/* 1632893Sdfr * The number of seconds between Jan 1, 1970 and Jan 1, 1980. In that 1642893Sdfr * interval there were 8 regular years and 2 leap years. 1652893Sdfr */ 1662893Sdfr#define SECONDSTO1980 (((8 * 365) + (2 * 366)) * (24 * 60 * 60)) 1672893Sdfr 16833181Seivindstatic u_short lastdosdate; 16933181Seivindstatic u_long lastseconds; 1702893Sdfr 1712893Sdfr/* 1722893Sdfr * Convert from dos' idea of time to unix'. This will probably only be 1732893Sdfr * called from the stat(), and fstat() system calls and so probably need 1742893Sdfr * not be too efficient. 1752893Sdfr */ 1762893Sdfrvoid 17733548Sjkhdos2unixtime(dd, dt, dh, tsp) 17833548Sjkh u_int dd; 17933548Sjkh u_int dt; 18033548Sjkh u_int dh; 1812893Sdfr struct timespec *tsp; 1822893Sdfr{ 1832893Sdfr u_long seconds; 18411921Sphk u_long month; 18511921Sphk u_long year; 1862893Sdfr u_long days; 1872893Sdfr u_short *months; 1882893Sdfr 18933548Sjkh if (dd == 0) { 19033548Sjkh /* 19133548Sjkh * Uninitialized field, return the epoch. 19233548Sjkh */ 19333548Sjkh tsp->tv_sec = 0; 19433548Sjkh tsp->tv_nsec = 0; 19533548Sjkh return; 19633548Sjkh } 1975083Sbde seconds = (((dt & DT_2SECONDS_MASK) >> DT_2SECONDS_SHIFT) << 1) 1982893Sdfr + ((dt & DT_MINUTES_MASK) >> DT_MINUTES_SHIFT) * 60 19933548Sjkh + ((dt & DT_HOURS_MASK) >> DT_HOURS_SHIFT) * 3600 20033548Sjkh + dh / 100; 2012893Sdfr /* 2022893Sdfr * If the year, month, and day from the last conversion are the 2032893Sdfr * same then use the saved value. 2042893Sdfr */ 2052893Sdfr if (lastdosdate != dd) { 2062893Sdfr lastdosdate = dd; 2072893Sdfr days = 0; 2082893Sdfr year = (dd & DD_YEAR_MASK) >> DD_YEAR_SHIFT; 2097465Sache days = year * 365; 2107465Sache days += year / 4 + 1; /* add in leap days */ 2117465Sache if ((year & 0x03) == 0) 2127465Sache days--; /* if year is a leap year */ 2132893Sdfr months = year & 0x03 ? regyear : leapyear; 2142893Sdfr month = (dd & DD_MONTH_MASK) >> DD_MONTH_SHIFT; 2157465Sache if (month < 1 || month > 12) { 21633548Sjkh printf("dos2unixtime(): month value out of range (%ld)\n", 2173152Sphk month); 2182893Sdfr month = 1; 2192893Sdfr } 2207465Sache if (month > 1) 2217465Sache days += months[month - 2]; 2222893Sdfr days += ((dd & DD_DAY_MASK) >> DD_DAY_SHIFT) - 1; 2232893Sdfr lastseconds = (days * 24 * 60 * 60) + SECONDSTO1980; 2242893Sdfr } 22518397Snate tsp->tv_sec = seconds + lastseconds + (tz.tz_minuteswest * 60) 22615055Sache + adjkerntz; 22715053Sache /* + daylight savings time correction */ 22833548Sjkh tsp->tv_nsec = (dh % 100) * 10000000; 2292893Sdfr} 2302893Sdfr 23133548Sjkhstatic u_char 23233548Sjkhunix2dos[256] = { 23333548Sjkh 0, 0, 0, 0, 0, 0, 0, 0, /* 00-07 */ 23433548Sjkh 0, 0, 0, 0, 0, 0, 0, 0, /* 08-0f */ 23533548Sjkh 0, 0, 0, 0, 0, 0, 0, 0, /* 10-17 */ 23633548Sjkh 0, 0, 0, 0, 0, 0, 0, 0, /* 18-1f */ 23733548Sjkh 0, 0x21, 0, 0x23, 0x24, 0x25, 0x26, 0x27, /* 20-27 */ 23833548Sjkh 0x28, 0x29, 0, 0, 0, 0x2d, 0, 0, /* 28-2f */ 23933548Sjkh 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 30-37 */ 24033548Sjkh 0x38, 0x39, 0, 0, 0, 0, 0, 0, /* 38-3f */ 24133548Sjkh 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 40-47 */ 24233548Sjkh 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 48-4f */ 24333548Sjkh 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 50-57 */ 24433548Sjkh 0x58, 0x59, 0x5a, 0, 0, 0, 0x5e, 0x5f, /* 58-5f */ 24533548Sjkh 0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 60-67 */ 24633548Sjkh 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 68-6f */ 24733548Sjkh 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 70-77 */ 24833548Sjkh 0x58, 0x59, 0x5a, 0x7b, 0, 0x7d, 0x7e, 0, /* 78-7f */ 24933548Sjkh 0, 0, 0, 0, 0, 0, 0, 0, /* 80-87 */ 25033548Sjkh 0, 0, 0, 0, 0, 0, 0, 0, /* 88-8f */ 25133548Sjkh 0, 0, 0, 0, 0, 0, 0, 0, /* 90-97 */ 25233548Sjkh 0, 0, 0, 0, 0, 0, 0, 0, /* 98-9f */ 25333548Sjkh 0, 0xad, 0xbd, 0x9c, 0xcf, 0xbe, 0xdd, 0xf5, /* a0-a7 */ 25433548Sjkh 0xf9, 0xb8, 0xa6, 0xae, 0xaa, 0xf0, 0xa9, 0xee, /* a8-af */ 25533548Sjkh 0xf8, 0xf1, 0xfd, 0xfc, 0xef, 0xe6, 0xf4, 0xfa, /* b0-b7 */ 25633548Sjkh 0xf7, 0xfb, 0xa7, 0xaf, 0xac, 0xab, 0xf3, 0xa8, /* b8-bf */ 25733548Sjkh 0xb7, 0xb5, 0xb6, 0xc7, 0x8e, 0x8f, 0x92, 0x80, /* c0-c7 */ 25833548Sjkh 0xd4, 0x90, 0xd2, 0xd3, 0xde, 0xd6, 0xd7, 0xd8, /* c8-cf */ 25933548Sjkh 0xd1, 0xa5, 0xe3, 0xe0, 0xe2, 0xe5, 0x99, 0x9e, /* d0-d7 */ 26033548Sjkh 0x9d, 0xeb, 0xe9, 0xea, 0x9a, 0xed, 0xe8, 0xe1, /* d8-df */ 26133548Sjkh 0xb7, 0xb5, 0xb6, 0xc7, 0x8e, 0x8f, 0x92, 0x80, /* e0-e7 */ 26233548Sjkh 0xd4, 0x90, 0xd2, 0xd3, 0xde, 0xd6, 0xd7, 0xd8, /* e8-ef */ 26333548Sjkh 0xd1, 0xa5, 0xe3, 0xe0, 0xe2, 0xe5, 0x99, 0xf6, /* f0-f7 */ 26433548Sjkh 0x9d, 0xeb, 0xe9, 0xea, 0x9a, 0xed, 0xe8, 0x98, /* f8-ff */ 26533548Sjkh}; 2662893Sdfr 26733548Sjkhstatic u_char 26833548Sjkhdos2unix[256] = { 26933548Sjkh 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, /* 00-07 */ 27033548Sjkh 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, /* 08-0f */ 27133548Sjkh 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, /* 10-17 */ 27233548Sjkh 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, /* 18-1f */ 27333548Sjkh 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 20-27 */ 27433548Sjkh 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 28-2f */ 27533548Sjkh 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 30-37 */ 27633548Sjkh 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 38-3f */ 27733548Sjkh 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 40-47 */ 27833548Sjkh 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 48-4f */ 27933548Sjkh 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 50-57 */ 28033548Sjkh 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 58-5f */ 28133548Sjkh 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 60-67 */ 28233548Sjkh 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 68-6f */ 28333548Sjkh 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 70-77 */ 28433548Sjkh 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 78-7f */ 28533548Sjkh 0xc7, 0xfc, 0xe9, 0xe2, 0xe4, 0xe0, 0xe5, 0xe7, /* 80-87 */ 28633548Sjkh 0xea, 0xeb, 0xe8, 0xef, 0xee, 0xec, 0xc4, 0xc5, /* 88-8f */ 28733548Sjkh 0xc9, 0xe6, 0xc6, 0xf4, 0xf6, 0xf2, 0xfb, 0xf9, /* 90-97 */ 28833548Sjkh 0xff, 0xd6, 0xdc, 0xf8, 0xa3, 0xd8, 0xd7, 0x3f, /* 98-9f */ 28933548Sjkh 0xe1, 0xed, 0xf3, 0xfa, 0xf1, 0xd1, 0xaa, 0xba, /* a0-a7 */ 29033548Sjkh 0xbf, 0xae, 0xac, 0xbd, 0xbc, 0xa1, 0xab, 0xbb, /* a8-af */ 29133548Sjkh 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0xc1, 0xc2, 0xc0, /* b0-b7 */ 29233548Sjkh 0xa9, 0x3f, 0x3f, 0x3f, 0x3f, 0xa2, 0xa5, 0x3f, /* b8-bf */ 29333548Sjkh 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0xe3, 0xc3, /* c0-c7 */ 29433548Sjkh 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0xa4, /* c8-cf */ 29533548Sjkh 0xf0, 0xd0, 0xca, 0xcb, 0xc8, 0x3f, 0xcd, 0xce, /* d0-d7 */ 29633548Sjkh 0xcf, 0x3f, 0x3f, 0x3f, 0x3f, 0xa6, 0xcc, 0x3f, /* d8-df */ 29733548Sjkh 0xd3, 0xdf, 0xd4, 0xd2, 0xf5, 0xd5, 0xb5, 0xfe, /* e0-e7 */ 29833548Sjkh 0xde, 0xda, 0xdb, 0xd9, 0xfd, 0xdd, 0xaf, 0x3f, /* e8-ef */ 29933548Sjkh 0xad, 0xb1, 0x3f, 0xbe, 0xb6, 0xa7, 0xf7, 0xb8, /* f0-f7 */ 30033548Sjkh 0xb0, 0xa8, 0xb7, 0xb9, 0xb3, 0xb2, 0x3f, 0x3f, /* f8-ff */ 30133548Sjkh}; 30233548Sjkh 30333548Sjkhstatic u_char 30433548Sjkhu2l[256] = { 30533548Sjkh 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 00-07 */ 30633548Sjkh 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 08-0f */ 30733548Sjkh 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 10-17 */ 30833548Sjkh 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 18-1f */ 30933548Sjkh 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 20-27 */ 31033548Sjkh 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 28-2f */ 31133548Sjkh 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 30-37 */ 31233548Sjkh 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 38-3f */ 31333548Sjkh 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 40-47 */ 31433548Sjkh 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 48-4f */ 31533548Sjkh 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 50-57 */ 31633548Sjkh 0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 58-5f */ 31733548Sjkh 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 60-67 */ 31833548Sjkh 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 68-6f */ 31933548Sjkh 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 70-77 */ 32033548Sjkh 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 78-7f */ 32133548Sjkh 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 80-87 */ 32233548Sjkh 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 88-8f */ 32333548Sjkh 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 90-97 */ 32433548Sjkh 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 98-9f */ 32533548Sjkh 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* a0-a7 */ 32633548Sjkh 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* a8-af */ 32733548Sjkh 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* b0-b7 */ 32833548Sjkh 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* b8-bf */ 32933548Sjkh 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* c0-c7 */ 33033548Sjkh 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* c8-cf */ 33133548Sjkh 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* d0-d7 */ 33233548Sjkh 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* d8-df */ 33333548Sjkh 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* e0-e7 */ 33433548Sjkh 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* e8-ef */ 33533548Sjkh 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* f0-f7 */ 33633548Sjkh 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* f8-ff */ 33733548Sjkh}; 33833548Sjkh 33933744Sache/* UNICODE Cyrillic to local code table conversion */ 34033744Sache/* will be loadable in future */ 34133744Sache 34233744Sachestatic u_char 34333744Sachecyr2u[256] = { /* defaulted to KOI8-R */ 34433745Sache '?', /* */ 34533744Sache0xb3, /* CYRILLIC CAPITAL LETTER IO */ 34633745Sache '?', /* CYRILLIC CAPITAL LETTER DJE */ 34733745Sache '?', /* CYRILLIC CAPITAL LETTER GJE */ 34833745Sache '?', /* CYRILLIC CAPITAL LETTER UKRAINIAN IE */ 34933745Sache '?', /* CYRILLIC CAPITAL LETTER DZE */ 35033745Sache '?', /* CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I */ 35133745Sache '?', /* CYRILLIC CAPITAL LETTER YI */ 35233745Sache '?', /* CYRILLIC CAPITAL LETTER JE */ 35333745Sache '?', /* CYRILLIC CAPITAL LETTER LJE */ 35433745Sache '?', /* CYRILLIC CAPITAL LETTER NJE */ 35533745Sache '?', /* CYRILLIC CAPITAL LETTER TSHE */ 35633745Sache '?', /* CYRILLIC CAPITAL LETTER KJE */ 35733745Sache '?', /* */ 35833745Sache '?', /* CYRILLIC CAPITAL LETTER SHORT U */ 35933745Sache '?', /* CYRILLIC CAPITAL LETTER DZHE */ 36033744Sache0xe1, /* CYRILLIC CAPITAL LETTER A */ 36133744Sache0xe2, /* CYRILLIC CAPITAL LETTER BE */ 36233744Sache0xf7, /* CYRILLIC CAPITAL LETTER VE */ 36333744Sache0xe7, /* CYRILLIC CAPITAL LETTER GHE */ 36433744Sache0xe4, /* CYRILLIC CAPITAL LETTER DE */ 36533744Sache0xe5, /* CYRILLIC CAPITAL LETTER IE */ 36633744Sache0xf6, /* CYRILLIC CAPITAL LETTER ZHE */ 36733744Sache0xfa, /* CYRILLIC CAPITAL LETTER ZE */ 36833744Sache0xe9, /* CYRILLIC CAPITAL LETTER I */ 36933744Sache0xea, /* CYRILLIC CAPITAL LETTER SHORT I */ 37033744Sache0xeb, /* CYRILLIC CAPITAL LETTER KA */ 37133744Sache0xe4, /* CYRILLIC CAPITAL LETTER EL */ 37233744Sache0xed, /* CYRILLIC CAPITAL LETTER EM */ 37333744Sache0xee, /* CYRILLIC CAPITAL LETTER EN */ 37433744Sache0xef, /* CYRILLIC CAPITAL LETTER O */ 37533744Sache0xf0, /* CYRILLIC CAPITAL LETTER PE */ 37633744Sache0xf2, /* CYRILLIC CAPITAL LETTER ER */ 37733744Sache0xf3, /* CYRILLIC CAPITAL LETTER ES */ 37833744Sache0xf4, /* CYRILLIC CAPITAL LETTER TE */ 37933744Sache0xf5, /* CYRILLIC CAPITAL LETTER U */ 38033744Sache0xe6, /* CYRILLIC CAPITAL LETTER EF */ 38133744Sache0xe8, /* CYRILLIC CAPITAL LETTER HA */ 38233744Sache0xe3, /* CYRILLIC CAPITAL LETTER TSE */ 38333744Sache0xfe, /* CYRILLIC CAPITAL LETTER CHE */ 38433744Sache0xfb, /* CYRILLIC CAPITAL LETTER SHA */ 38533744Sache0xfd, /* CYRILLIC CAPITAL LETTER SHCHA */ 38633744Sache0xff, /* CYRILLIC CAPITAL LETTER HARD SIGN */ 38733744Sache0xf9, /* CYRILLIC CAPITAL LETTER YERU */ 38833744Sache0xf8, /* CYRILLIC CAPITAL LETTER SOFT SIGN */ 38933744Sache0xfc, /* CYRILLIC CAPITAL LETTER E */ 39033744Sache0xe0, /* CYRILLIC CAPITAL LETTER YU */ 39133744Sache0xf1, /* CYRILLIC CAPITAL LETTER YA */ 39233744Sache0xc1, /* CYRILLIC SMALL LETTER A */ 39333744Sache0xc2, /* CYRILLIC SMALL LETTER BE */ 39433744Sache0xd7, /* CYRILLIC SMALL LETTER VE */ 39533744Sache0xc7, /* CYRILLIC SMALL LETTER GHE */ 39633744Sache0xc4, /* CYRILLIC SMALL LETTER DE */ 39733744Sache0xc5, /* CYRILLIC SMALL LETTER IE */ 39833744Sache0xd6, /* CYRILLIC SMALL LETTER ZHE */ 39933744Sache0xda, /* CYRILLIC SMALL LETTER ZE */ 40033744Sache0xc9, /* CYRILLIC SMALL LETTER I */ 40133744Sache0xca, /* CYRILLIC SMALL LETTER SHORT I */ 40233744Sache0xcb, /* CYRILLIC SMALL LETTER KA */ 40333744Sache0xcc, /* CYRILLIC SMALL LETTER EL */ 40433744Sache0xcd, /* CYRILLIC SMALL LETTER EM */ 40533744Sache0xce, /* CYRILLIC SMALL LETTER EN */ 40633744Sache0xcf, /* CYRILLIC SMALL LETTER O */ 40733744Sache0xd0, /* CYRILLIC SMALL LETTER PE */ 40833744Sache0xd2, /* CYRILLIC SMALL LETTER ER */ 40933744Sache0xd3, /* CYRILLIC SMALL LETTER ES */ 41033744Sache0xd4, /* CYRILLIC SMALL LETTER TE */ 41133744Sache0xd5, /* CYRILLIC SMALL LETTER U */ 41233744Sache0xc6, /* CYRILLIC SMALL LETTER EF */ 41333744Sache0xc8, /* CYRILLIC SMALL LETTER HA */ 41433744Sache0xc3, /* CYRILLIC SMALL LETTER TSE */ 41533744Sache0xde, /* CYRILLIC SMALL LETTER CHE */ 41633744Sache0xdb, /* CYRILLIC SMALL LETTER SHA */ 41733744Sache0xdd, /* CYRILLIC SMALL LETTER SHCHA */ 41833744Sache0xdf, /* CYRILLIC SMALL LETTER HARD SIGN */ 41933744Sache0xd9, /* CYRILLIC SMALL LETTER YERU */ 42033744Sache0xd8, /* CYRILLIC SMALL LETTER SOFT SIGN */ 42133744Sache0xdc, /* CYRILLIC SMALL LETTER E */ 42233744Sache0xc0, /* CYRILLIC SMALL LETTER YU */ 42333744Sache0xd1, /* CYRILLIC SMALL LETTER YA */ 42433745Sache '?', /* */ 42533744Sache0xa3, /* CYRILLIC SMALL LETTER IO */ 42633745Sache '?', /* CYRILLIC SMALL LETTER DJE */ 42733745Sache '?', /* CYRILLIC SMALL LETTER GJE */ 42833745Sache '?', /* CYRILLIC SMALL LETTER UKRAINIAN IE */ 42933745Sache '?', /* CYRILLIC SMALL LETTER DZE */ 43033745Sache '?', /* CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I */ 43133745Sache '?', /* CYRILLIC SMALL LETTER YI */ 43233745Sache '?', /* CYRILLIC SMALL LETTER JE */ 43333745Sache '?', /* CYRILLIC SMALL LETTER LJE */ 43433745Sache '?', /* CYRILLIC SMALL LETTER NJE */ 43533745Sache '?', /* CYRILLIC SMALL LETTER TSHE */ 43633745Sache '?', /* CYRILLIC SMALL LETTER KJE */ 43733745Sache '?', /* */ 43833745Sache '?', /* CYRILLIC SMALL LETTER SHORT U */ 43933745Sache '?', /* CYRILLIC SMALL LETTER DZHE */ 44033745Sache '?', /* CYRILLIC CAPITAL LETTER OMEGA */ 44133745Sache '?', /* CYRILLIC SMALL LETTER OMEGA */ 44233745Sache '?', /* CYRILLIC CAPITAL LETTER YAT */ 44333745Sache '?', /* CYRILLIC SMALL LETTER YAT */ 44433745Sache '?', /* CYRILLIC CAPITAL LETTER IOTIFIED E */ 44533745Sache '?', /* CYRILLIC SMALL LETTER IOTIFIED E */ 44633745Sache '?', /* CYRILLIC CAPITAL LETTER LITTLE YUS */ 44733745Sache '?', /* CYRILLIC SMALL LETTER LITTLE YUS */ 44833745Sache '?', /* CYRILLIC CAPITAL LETTER IOTIFIED LITTLE YUS */ 44933745Sache '?', /* CYRILLIC SMALL LETTER IOTIFIED LITTLE YUS */ 45033745Sache '?', /* CYRILLIC CAPITAL LETTER BIG YUS */ 45133745Sache '?', /* CYRILLIC SMALL LETTER BIG YUS */ 45233745Sache '?', /* CYRILLIC CAPITAL LETTER IOTIFIED BIG YUS */ 45333745Sache '?', /* CYRILLIC SMALL LETTER IOTIFIED BIG YUS */ 45433745Sache '?', /* CYRILLIC CAPITAL LETTER KSI */ 45533745Sache '?', /* CYRILLIC SMALL LETTER KSI */ 45633745Sache '?', /* CYRILLIC CAPITAL LETTER PSI */ 45733745Sache '?', /* CYRILLIC SMALL LETTER PSI */ 45833745Sache '?', /* CYRILLIC CAPITAL LETTER FITA */ 45933745Sache '?', /* CYRILLIC SMALL LETTER FITA */ 46033745Sache '?', /* CYRILLIC CAPITAL LETTER IZHITSA */ 46133745Sache '?', /* CYRILLIC SMALL LETTER IZHITSA */ 46233745Sache '?', /* CYRILLIC CAPITAL LETTER IZHITSA WITH DOUBLE GRAVE ACCENT */ 46333745Sache '?', /* CYRILLIC SMALL LETTER IZHITSA WITH DOUBLE GRAVE ACCENT */ 46433745Sache '?', /* CYRILLIC CAPITAL LETTER UK */ 46533745Sache '?', /* CYRILLIC SMALL LETTER UK */ 46633745Sache '?', /* CYRILLIC CAPITAL LETTER ROUND OMEGA */ 46733745Sache '?', /* CYRILLIC SMALL LETTER ROUND OMEGA */ 46833745Sache '?', /* CYRILLIC CAPITAL LETTER OMEGA WITH TITLO */ 46933745Sache '?', /* CYRILLIC SMALL LETTER OMEGA WITH TITLO */ 47033745Sache '?', /* CYRILLIC CAPITAL LETTER OT */ 47133745Sache '?', /* CYRILLIC SMALL LETTER OT */ 47233745Sache '?', /* CYRILLIC CAPITAL LETTER KOPPA */ 47333745Sache '?', /* CYRILLIC SMALL LETTER KOPPA */ 47433745Sache '?', /* CYRILLIC THOUSANDS SIGN */ 47533745Sache '?', /* */ 47633745Sache '?', /* */ 47733745Sache '?', /* */ 47833745Sache '?', /* */ 47933745Sache '?', /* */ 48033745Sache '?', /* */ 48133745Sache '?', /* */ 48233745Sache '?', /* */ 48333745Sache '?', /* */ 48433745Sache '?', /* */ 48533745Sache '?', /* */ 48633745Sache '?', /* */ 48733745Sache '?', /* */ 48833745Sache '?', /* CYRILLIC CAPITAL LETTER GHE WITH UPTURN */ 48933745Sache '?', /* CYRILLIC SMALL LETTER GHE WITH UPTURN */ 49033745Sache '?', /* CYRILLIC CAPITAL LETTER GHE WITH STROKE */ 49133745Sache '?', /* CYRILLIC SMALL LETTER GHE WITH STROKE */ 49233745Sache '?', /* CYRILLIC CAPITAL LETTER GHE WITH MIDDLE HOOK */ 49333745Sache '?', /* CYRILLIC SMALL LETTER GHE WITH MIDDLE HOOK */ 49433745Sache '?', /* CYRILLIC CAPITAL LETTER ZHE WITH DESCENDER */ 49533745Sache '?', /* CYRILLIC SMALL LETTER ZHE WITH DESCENDER */ 49633745Sache '?', /* CYRILLIC CAPITAL LETTER ZE WITH DESCENDER */ 49733745Sache '?', /* CYRILLIC SMALL LETTER ZE WITH DESCENDER */ 49833745Sache '?', /* CYRILLIC CAPITAL LETTER KA WITH DESCENDER */ 49933745Sache '?', /* CYRILLIC SMALL LETTER KA WITH DESCENDER */ 50033745Sache '?', /* CYRILLIC CAPITAL LETTER KA WITH VERTICAL STROKE */ 50133745Sache '?', /* CYRILLIC SMALL LETTER KA WITH VERTICAL STROKE */ 50233745Sache '?', /* CYRILLIC CAPITAL LETTER KA WITH STROKE */ 50333745Sache '?', /* CYRILLIC SMALL LETTER KA WITH STROKE */ 50433745Sache '?', /* CYRILLIC CAPITAL LETTER BASHKIR KA */ 50533745Sache '?', /* CYRILLIC SMALL LETTER BASHKIR KA */ 50633745Sache '?', /* CYRILLIC CAPITAL LETTER EN WITH DESCENDER */ 50733745Sache '?', /* CYRILLIC SMALL LETTER EN WITH DESCENDER */ 50833745Sache '?', /* CYRILLIC CAPITAL LIGATURE EN GHE */ 50933745Sache '?', /* CYRILLIC SMALL LIGATURE EN GHE */ 51033745Sache '?', /* CYRILLIC CAPITAL LETTER PE WITH MIDDLE HOOK */ 51133745Sache '?', /* CYRILLIC SMALL LETTER PE WITH MIDDLE HOOK */ 51233745Sache '?', /* CYRILLIC CAPITAL LETTER ABKHASIAN HA */ 51333745Sache '?', /* CYRILLIC SMALL LETTER ABKHASIAN HA */ 51433745Sache '?', /* CYRILLIC CAPITAL LETTER ES WITH DESCENDER */ 51533745Sache '?', /* CYRILLIC SMALL LETTER ES WITH DESCENDER */ 51633745Sache '?', /* CYRILLIC CAPITAL LETTER TE WITH DESCENDER */ 51733745Sache '?', /* CYRILLIC SMALL LETTER TE WITH DESCENDER */ 51833745Sache '?', /* CYRILLIC CAPITAL LETTER STRAIGHT U */ 51933745Sache '?', /* CYRILLIC SMALL LETTER STRAIGHT U */ 52033745Sache '?', /* CYRILLIC CAPITAL LETTER STRAIGHT U WITH STROKE */ 52133745Sache '?', /* CYRILLIC SMALL LETTER STRAIGHT U WITH STROKE */ 52233745Sache '?', /* CYRILLIC CAPITAL LETTER HA WITH DESCENDER */ 52333745Sache '?', /* CYRILLIC SMALL LETTER HA WITH DESCENDER */ 52433745Sache '?', /* CYRILLIC CAPITAL LIGATURE TE TSE */ 52533745Sache '?', /* CYRILLIC SMALL LIGATURE TE TSE */ 52633745Sache '?', /* CYRILLIC CAPITAL LETTER CHE WITH DESCENDER */ 52733745Sache '?', /* CYRILLIC SMALL LETTER CHE WITH DESCENDER */ 52833745Sache '?', /* CYRILLIC CAPITAL LETTER CHE WITH VERTICAL STROKE */ 52933745Sache '?', /* CYRILLIC SMALL LETTER CHE WITH VERTICAL STROKE */ 53033745Sache '?', /* CYRILLIC CAPITAL LETTER SHHA */ 53133745Sache '?', /* CYRILLIC SMALL LETTER SHHA */ 53233745Sache '?', /* CYRILLIC CAPITAL LETTER ABKHASIAN CHE */ 53333745Sache '?', /* CYRILLIC SMALL LETTER ABKHASIAN CHE */ 53433745Sache '?', /* CYRILLIC CAPITAL LETTER ABKHASIAN CHE WITH DESCENDER */ 53533745Sache '?', /* CYRILLIC SMALL LETTER ABKHASIAN CHE WITH DESCENDER */ 53633745Sache '?', /* CYRILLIC LETTER PALOCHKA */ 53733745Sache '?', /* CYRILLIC CAPITAL LETTER ZHE WITH BREVE */ 53833745Sache '?', /* CYRILLIC SMALL LETTER ZHE WITH BREVE */ 53933745Sache '?', /* CYRILLIC CAPITAL LETTER KA WITH HOOK */ 54033745Sache '?', /* CYRILLIC SMALL LETTER KA WITH HOOK */ 54133745Sache '?', /* */ 54233745Sache '?', /* */ 54333745Sache '?', /* CYRILLIC CAPITAL LETTER EN WITH HOOK */ 54433745Sache '?', /* CYRILLIC SMALL LETTER EN WITH HOOK */ 54533745Sache '?', /* */ 54633745Sache '?', /* */ 54733745Sache '?', /* CYRILLIC CAPITAL LETTER KHAKASSIAN CHE */ 54833745Sache '?', /* CYRILLIC SMALL LETTER KHAKASSIAN CHE */ 54933745Sache '?', /* */ 55033745Sache '?', /* */ 55133745Sache '?', /* */ 55233745Sache '?', /* CYRILLIC CAPITAL LETTER A WITH BREVE */ 55333745Sache '?', /* CYRILLIC SMALL LETTER A WITH BREVE */ 55433745Sache '?', /* CYRILLIC CAPITAL LETTER A WITH DIAERESIS */ 55533745Sache '?', /* CYRILLIC SMALL LETTER A WITH DIAERESIS */ 55633745Sache '?', /* CYRILLIC CAPITAL LIGATURE A IE */ 55733745Sache '?', /* CYRILLIC SMALL LIGATURE A IE */ 55833745Sache '?', /* CYRILLIC CAPITAL LETTER IE WITH BREVE */ 55933745Sache '?', /* CYRILLIC SMALL LETTER IE WITH BREVE */ 56033745Sache '?', /* CYRILLIC CAPITAL LETTER SCHWA */ 56133745Sache '?', /* CYRILLIC SMALL LETTER SCHWA */ 56233745Sache '?', /* CYRILLIC CAPITAL LETTER SCHWA WITH DIAERESIS */ 56333745Sache '?', /* CYRILLIC SMALL LETTER SCHWA WITH DIAERESIS */ 56433745Sache '?', /* CYRILLIC CAPITAL LETTER ZHE WITH DIAERESIS */ 56533745Sache '?', /* CYRILLIC SMALL LETTER ZHE WITH DIAERESIS */ 56633745Sache '?', /* CYRILLIC CAPITAL LETTER ZE WITH DIAERESIS */ 56733745Sache '?', /* CYRILLIC SMALL LETTER ZE WITH DIAERESIS */ 56833745Sache '?', /* CYRILLIC CAPITAL LETTER ABKHASIAN DZE */ 56933745Sache '?', /* CYRILLIC SMALL LETTER ABKHASIAN DZE */ 57033745Sache '?', /* CYRILLIC CAPITAL LETTER I WITH MACRON */ 57133745Sache '?', /* CYRILLIC SMALL LETTER I WITH MACRON */ 57233745Sache '?', /* CYRILLIC CAPITAL LETTER I WITH DIAERESIS */ 57333745Sache '?', /* CYRILLIC SMALL LETTER I WITH DIAERESIS */ 57433745Sache '?', /* CYRILLIC CAPITAL LETTER O WITH DIAERESIS */ 57533745Sache '?', /* CYRILLIC SMALL LETTER O WITH DIAERESIS */ 57633745Sache '?', /* CYRILLIC CAPITAL LETTER BARRED O */ 57733745Sache '?', /* CYRILLIC SMALL LETTER BARRED O */ 57833745Sache '?', /* CYRILLIC CAPITAL LETTER BARRED O WITH DIAERESIS */ 57933745Sache '?', /* CYRILLIC SMALL LETTER BARRED O WITH DIAERESIS */ 58033745Sache '?', /* */ 58133745Sache '?', /* */ 58233745Sache '?', /* CYRILLIC CAPITAL LETTER U WITH MACRON */ 58333745Sache '?', /* CYRILLIC SMALL LETTER U WITH MACRON */ 58433745Sache '?', /* CYRILLIC CAPITAL LETTER U WITH DIAERESIS */ 58533745Sache '?', /* CYRILLIC SMALL LETTER U WITH DIAERESIS */ 58633745Sache '?', /* CYRILLIC CAPITAL LETTER U WITH DOUBLE ACUTE */ 58733745Sache '?', /* CYRILLIC SMALL LETTER U WITH DOUBLE ACUTE */ 58833745Sache '?', /* CYRILLIC CAPITAL LETTER CHE WITH DIAERESIS */ 58933745Sache '?', /* CYRILLIC SMALL LETTER CHE WITH DIAERESIS */ 59033745Sache '?', /* */ 59133745Sache '?', /* */ 59233745Sache '?', /* CYRILLIC CAPITAL LETTER YERU WITH DIAERESIS */ 59333745Sache '?', /* CYRILLIC SMALL LETTER YERU WITH DIAERESIS */ 59433745Sache '?', /* */ 59533745Sache '?', /* */ 59633745Sache '?', /* */ 59733745Sache '?', /* */ 59833745Sache '?', /* */ 59933745Sache '?' /* */ 60033744Sache}; 60133744Sache 60233744Sache 6032893Sdfr/* 6042893Sdfr * DOS filenames are made of 2 parts, the name part and the extension part. 6052893Sdfr * The name part is 8 characters long and the extension part is 3 6062893Sdfr * characters long. They may contain trailing blanks if the name or 6072893Sdfr * extension are not long enough to fill their respective fields. 6082893Sdfr */ 6092893Sdfr 6102893Sdfr/* 6112893Sdfr * Convert a DOS filename to a unix filename. And, return the number of 6122893Sdfr * characters in the resulting unix filename excluding the terminating 6132893Sdfr * null. 6142893Sdfr */ 6152893Sdfrint 61633548Sjkhdos2unixfn(dn, un, lower) 6172893Sdfr u_char dn[11]; 6182893Sdfr u_char *un; 61933548Sjkh int lower; 6202893Sdfr{ 6212893Sdfr int i; 62233548Sjkh int thislong = 1; 6232893Sdfr u_char c; 6242893Sdfr 6252893Sdfr /* 62633548Sjkh * If first char of the filename is SLOT_E5 (0x05), then the real 62733548Sjkh * first char of the filename should be 0xe5. But, they couldn't 62833548Sjkh * just have a 0xe5 mean 0xe5 because that is used to mean a freed 62933548Sjkh * directory slot. Another dos quirk. 6302893Sdfr */ 63133548Sjkh if (*dn == SLOT_E5) 63233548Sjkh c = dos2unix[0xe5]; 63333548Sjkh else 63433548Sjkh c = dos2unix[*dn]; 63533548Sjkh *un++ = lower ? u2l[c] : c; 63633548Sjkh dn++; 6372893Sdfr 6382893Sdfr /* 63933548Sjkh * Copy the name portion into the unix filename string. 6402893Sdfr */ 64133548Sjkh for (i = 1; i < 8 && *dn != ' '; i++) { 64233548Sjkh c = dos2unix[*dn++]; 64333548Sjkh *un++ = lower ? u2l[c] : c; 6442893Sdfr thislong++; 6452893Sdfr } 64633548Sjkh dn += 8 - i; 6472893Sdfr 6482893Sdfr /* 6492893Sdfr * Now, if there is an extension then put in a period and copy in 6502893Sdfr * the extension. 6512893Sdfr */ 65233548Sjkh if (*dn != ' ') { 6532893Sdfr *un++ = '.'; 6542893Sdfr thislong++; 65533548Sjkh for (i = 0; i < 3 && *dn != ' '; i++) { 65633548Sjkh c = dos2unix[*dn++]; 65733548Sjkh *un++ = lower ? u2l[c] : c; 6582893Sdfr thislong++; 6592893Sdfr } 6602893Sdfr } 6612893Sdfr *un++ = 0; 6622893Sdfr 66333548Sjkh return (thislong); 6642893Sdfr} 6652893Sdfr 6662893Sdfr/* 66733548Sjkh * Convert a unix filename to a DOS filename according to Win95 rules. 66833548Sjkh * If applicable and gen is not 0, it is inserted into the converted 66933548Sjkh * filename as a generation number. 67033548Sjkh * Returns 67133548Sjkh * 0 if name couldn't be converted 67233548Sjkh * 1 if the converted name is the same as the original 67333548Sjkh * (no long filename entry necessary for Win95) 67433548Sjkh * 2 if conversion was successful 67533548Sjkh * 3 if conversion was successful and generation number was inserted 6762893Sdfr */ 67733548Sjkhint 67833548Sjkhunix2dosfn(un, dn, unlen, gen) 67933548Sjkh const u_char *un; 68033548Sjkh u_char dn[12]; 6812893Sdfr int unlen; 68233548Sjkh u_int gen; 6832893Sdfr{ 68433548Sjkh int i, j, l; 68533548Sjkh int conv = 1; 68633548Sjkh const u_char *cp, *dp, *dp1; 68733548Sjkh u_char gentext[6], *wcp; 6882893Sdfr 6892893Sdfr /* 6902893Sdfr * Fill the dos filename string with blanks. These are DOS's pad 6912893Sdfr * characters. 6922893Sdfr */ 69333548Sjkh for (i = 0; i < 11; i++) 6942893Sdfr dn[i] = ' '; 69533548Sjkh dn[11] = 0; 6962893Sdfr 6972893Sdfr /* 6982893Sdfr * The filenames "." and ".." are handled specially, since they 6992893Sdfr * don't follow dos filename rules. 7002893Sdfr */ 7012893Sdfr if (un[0] == '.' && unlen == 1) { 7022893Sdfr dn[0] = '.'; 70333548Sjkh return gen <= 1; 7042893Sdfr } 7052893Sdfr if (un[0] == '.' && un[1] == '.' && unlen == 2) { 7062893Sdfr dn[0] = '.'; 7072893Sdfr dn[1] = '.'; 70833548Sjkh return gen <= 1; 7092893Sdfr } 7102893Sdfr 7112893Sdfr /* 71233548Sjkh * Filenames with only blanks and dots are not allowed! 7132893Sdfr */ 71433548Sjkh for (cp = un, i = unlen; --i >= 0; cp++) 71533548Sjkh if (*cp != ' ' && *cp != '.') 71633548Sjkh break; 71733548Sjkh if (i < 0) 71833548Sjkh return 0; 71933548Sjkh 72033548Sjkh /* 72133548Sjkh * Now find the extension 72233548Sjkh * Note: dot as first char doesn't start extension 72333548Sjkh * and trailing dots and blanks are ignored 72433548Sjkh */ 72533548Sjkh dp = dp1 = 0; 72633548Sjkh for (cp = un + 1, i = unlen - 1; --i >= 0;) { 72733548Sjkh switch (*cp++) { 72833548Sjkh case '.': 72933548Sjkh if (!dp1) 73033548Sjkh dp1 = cp; 73133548Sjkh break; 73233548Sjkh case ' ': 73333548Sjkh break; 73433548Sjkh default: 73533548Sjkh if (dp1) 73633548Sjkh dp = dp1; 73733548Sjkh dp1 = 0; 73833548Sjkh break; 73933548Sjkh } 7402893Sdfr } 7412893Sdfr 7422893Sdfr /* 74333548Sjkh * Now convert it 7442893Sdfr */ 74533548Sjkh if (dp) { 74633548Sjkh if (dp1) 74733548Sjkh l = dp1 - dp; 74833548Sjkh else 74933548Sjkh l = unlen - (dp - un); 75033548Sjkh for (i = 0, j = 8; i < l && j < 11; i++, j++) { 75133548Sjkh if (dp[i] != (dn[j] = unix2dos[dp[i]]) 75233548Sjkh && conv != 3) 75333548Sjkh conv = 2; 75433548Sjkh if (!dn[j]) { 75533548Sjkh conv = 3; 75633548Sjkh dn[j--] = ' '; 75733548Sjkh } 75833548Sjkh } 75933548Sjkh if (i < l) 76033548Sjkh conv = 3; 76133548Sjkh dp--; 76233548Sjkh } else { 76333548Sjkh for (dp = cp; *--dp == ' ' || *dp == '.';); 76433548Sjkh dp++; 76533548Sjkh } 76633548Sjkh 76733548Sjkh /* 76833548Sjkh * Now convert the rest of the name 76933548Sjkh */ 77033548Sjkh for (i = j = 0; un < dp && j < 8; i++, j++, un++) { 77133548Sjkh if (*un != (dn[j] = unix2dos[*un]) 77233548Sjkh && conv != 3) 77333548Sjkh conv = 2; 77433548Sjkh if (!dn[j]) { 77533548Sjkh conv = 3; 77633548Sjkh dn[j--] = ' '; 77733548Sjkh } 77833548Sjkh } 77933548Sjkh if (un < dp) 78033548Sjkh conv = 3; 78133548Sjkh /* 78233548Sjkh * If we didn't have any chars in filename, 78333548Sjkh * generate a default 78433548Sjkh */ 78533548Sjkh if (!j) 78633548Sjkh dn[0] = '_'; 78733548Sjkh 78833548Sjkh /* 78933548Sjkh * The first character cannot be E5, 79033548Sjkh * because that means a deleted entry 79133548Sjkh */ 79233548Sjkh if (dn[0] == 0xe5) 7932893Sdfr dn[0] = SLOT_E5; 7942893Sdfr 7952893Sdfr /* 79633548Sjkh * If there wasn't any char dropped, 79733548Sjkh * there is no place for generation numbers 7982893Sdfr */ 79933548Sjkh if (conv != 3) { 80033548Sjkh if (gen > 1) 80133548Sjkh return 0; 80233548Sjkh return conv; 8032893Sdfr } 8042893Sdfr 8052893Sdfr /* 80633548Sjkh * Now insert the generation number into the filename part 8072893Sdfr */ 80833548Sjkh for (wcp = gentext + sizeof(gentext); wcp > gentext && gen; gen /= 10) 80933548Sjkh *--wcp = gen % 10 + '0'; 81033548Sjkh if (gen) 81133548Sjkh return 0; 81233548Sjkh for (i = 8; dn[--i] == ' ';); 81333548Sjkh i++; 81433548Sjkh if (gentext + sizeof(gentext) - wcp + 1 > 8 - i) 81533548Sjkh i = 8 - (gentext + sizeof(gentext) - wcp + 1); 81633548Sjkh dn[i++] = '~'; 81733548Sjkh while (wcp < gentext + sizeof(gentext)) 81833548Sjkh dn[i++] = *wcp++; 81933548Sjkh return 3; 82033548Sjkh} 82133548Sjkh 82233548Sjkh/* 82333548Sjkh * Create a Win95 long name directory entry 82433548Sjkh * Note: assumes that the filename is valid, 82533548Sjkh * i.e. doesn't consist solely of blanks and dots 82633548Sjkh */ 82733548Sjkhint 82833548Sjkhunix2winfn(un, unlen, wep, cnt, chksum) 82933548Sjkh const u_char *un; 83033548Sjkh int unlen; 83133548Sjkh struct winentry *wep; 83233548Sjkh int cnt; 83333548Sjkh int chksum; 83433548Sjkh{ 83533548Sjkh const u_int8_t *cp; 83633548Sjkh u_int8_t *wcp; 83733548Sjkh int i; 83833548Sjkh 83933548Sjkh /* 84033548Sjkh * Drop trailing blanks and dots 84133548Sjkh */ 84233548Sjkh for (cp = un + unlen; *--cp == ' ' || *cp == '.'; unlen--); 84333548Sjkh 84433548Sjkh un += (cnt - 1) * WIN_CHARS; 84533548Sjkh unlen -= (cnt - 1) * WIN_CHARS; 84633548Sjkh 84733548Sjkh /* 84833548Sjkh * Initialize winentry to some useful default 84933548Sjkh */ 85033548Sjkh for (wcp = (u_int8_t *)wep, i = sizeof(*wep); --i >= 0; *wcp++ = 0xff); 85133548Sjkh wep->weCnt = cnt; 85233548Sjkh wep->weAttributes = ATTR_WIN95; 85333548Sjkh wep->weReserved1 = 0; 85433548Sjkh wep->weChksum = chksum; 85533548Sjkh wep->weReserved2 = 0; 85633548Sjkh 85733548Sjkh /* 85833548Sjkh * Now convert the filename parts 85933548Sjkh */ 86033548Sjkh for (wcp = wep->wePart1, i = sizeof(wep->wePart1)/2; --i >= 0;) { 86133548Sjkh if (--unlen < 0) 86233548Sjkh goto done; 86333548Sjkh *wcp++ = *un++; 86433548Sjkh *wcp++ = 0; 8652893Sdfr } 86633548Sjkh for (wcp = wep->wePart2, i = sizeof(wep->wePart2)/2; --i >= 0;) { 86733548Sjkh if (--unlen < 0) 86833548Sjkh goto done; 86933548Sjkh *wcp++ = *un++; 87033548Sjkh *wcp++ = 0; 87133548Sjkh } 87233548Sjkh for (wcp = wep->wePart3, i = sizeof(wep->wePart3)/2; --i >= 0;) { 87333548Sjkh if (--unlen < 0) 87433548Sjkh goto done; 87533548Sjkh *wcp++ = *un++; 87633548Sjkh *wcp++ = 0; 87733548Sjkh } 87833548Sjkh if (!unlen) 87933548Sjkh wep->weCnt |= WIN_LAST; 88033548Sjkh return unlen; 88133548Sjkh 88233548Sjkhdone: 88333548Sjkh *wcp++ = 0; 88433548Sjkh *wcp++ = 0; 88533548Sjkh wep->weCnt |= WIN_LAST; 88633548Sjkh return 0; 8872893Sdfr} 8882893Sdfr 8892893Sdfr/* 89033548Sjkh * Compare our filename to the one in the Win95 entry 89133548Sjkh * Returns the checksum or -1 if no match 8922893Sdfr */ 89333548Sjkhint 89433548SjkhwinChkName(un, unlen, wep, chksum) 89533548Sjkh const u_char *un; 89633548Sjkh int unlen; 89733548Sjkh struct winentry *wep; 89833548Sjkh int chksum; 89933548Sjkh{ 90033548Sjkh u_int8_t *cp; 90133548Sjkh int i; 90233548Sjkh 90333548Sjkh /* 90433548Sjkh * First compare checksums 90533548Sjkh */ 90633548Sjkh if (wep->weCnt&WIN_LAST) 90733548Sjkh chksum = wep->weChksum; 90833548Sjkh else if (chksum != wep->weChksum) 90933548Sjkh chksum = -1; 91033548Sjkh if (chksum == -1) 91133548Sjkh return -1; 91233548Sjkh 91333548Sjkh /* 91433548Sjkh * Offset of this entry 91533548Sjkh */ 91633548Sjkh i = ((wep->weCnt&WIN_CNT) - 1) * WIN_CHARS; 91733548Sjkh un += i; 91833548Sjkh if ((unlen -= i) <= 0) 91933548Sjkh return -1; 92033548Sjkh if ((wep->weCnt&WIN_LAST) && unlen > WIN_CHARS) 92133548Sjkh return -1; 92233548Sjkh 92333548Sjkh /* 92433548Sjkh * Compare the name parts 92533548Sjkh */ 92633548Sjkh for (cp = wep->wePart1, i = sizeof(wep->wePart1)/2; --i >= 0;) { 92733548Sjkh if (--unlen < 0) { 92833548Sjkh if (!*cp++ && !*cp) 92933548Sjkh return chksum; 93033548Sjkh return -1; 93133548Sjkh } 93233548Sjkh if (u2l[*cp++] != u2l[*un++] || *cp++) 93333548Sjkh return -1; 93433548Sjkh } 93533548Sjkh for (cp = wep->wePart2, i = sizeof(wep->wePart2)/2; --i >= 0;) { 93633548Sjkh if (--unlen < 0) { 93733548Sjkh if (!*cp++ && !*cp) 93833548Sjkh return chksum; 93933548Sjkh return -1; 94033548Sjkh } 94133548Sjkh if (u2l[*cp++] != u2l[*un++] || *cp++) 94233548Sjkh return -1; 94333548Sjkh } 94433548Sjkh for (cp = wep->wePart3, i = sizeof(wep->wePart3)/2; --i >= 0;) { 94533548Sjkh if (--unlen < 0) { 94633548Sjkh if (!*cp++ && !*cp) 94733548Sjkh return chksum; 94833548Sjkh return -1; 94933548Sjkh } 95033548Sjkh if (u2l[*cp++] != u2l[*un++] || *cp++) 95133548Sjkh return -1; 95233548Sjkh } 95333548Sjkh return chksum; 95433548Sjkh} 95533548Sjkh 95633548Sjkh/* 95733548Sjkh * Convert Win95 filename to dirbuf. 95833548Sjkh * Returns the checksum or -1 if impossible 95933548Sjkh */ 96033548Sjkhint 96133548Sjkhwin2unixfn(wep, dp, chksum) 96233548Sjkh struct winentry *wep; 96333548Sjkh struct dirent *dp; 96433548Sjkh int chksum; 96533548Sjkh{ 96633548Sjkh u_int8_t *cp; 96733548Sjkh u_int8_t *np, *ep = dp->d_name + WIN_MAXLEN; 96833744Sache u_int16_t code; 96933548Sjkh int i; 97033548Sjkh 97133548Sjkh if ((wep->weCnt&WIN_CNT) > howmany(WIN_MAXLEN, WIN_CHARS) 97233548Sjkh || !(wep->weCnt&WIN_CNT)) 97333548Sjkh return -1; 97433548Sjkh 97533548Sjkh /* 97633548Sjkh * First compare checksums 97733548Sjkh */ 97833548Sjkh if (wep->weCnt&WIN_LAST) { 97933548Sjkh chksum = wep->weChksum; 98033548Sjkh /* 98133548Sjkh * This works even though d_namlen is one byte! 98233548Sjkh */ 98333548Sjkh dp->d_namlen = (wep->weCnt&WIN_CNT) * WIN_CHARS; 98433548Sjkh } else if (chksum != wep->weChksum) 98533548Sjkh chksum = -1; 98633548Sjkh if (chksum == -1) 98733548Sjkh return -1; 98833548Sjkh 98933548Sjkh /* 99033548Sjkh * Offset of this entry 99133548Sjkh */ 99233548Sjkh i = ((wep->weCnt&WIN_CNT) - 1) * WIN_CHARS; 99333548Sjkh np = (u_int8_t *)dp->d_name + i; 99433548Sjkh 99533548Sjkh /* 99633548Sjkh * Convert the name parts 99733548Sjkh */ 99833548Sjkh for (cp = wep->wePart1, i = sizeof(wep->wePart1)/2; --i >= 0;) { 99933744Sache code = (cp[1] << 8) | cp[0]; 100033744Sache switch (code) { 100133548Sjkh case 0: 100233744Sache *np = '\0'; 100333548Sjkh dp->d_namlen -= sizeof(wep->wePart2)/2 100433548Sjkh + sizeof(wep->wePart3)/2 + i + 1; 100533548Sjkh return chksum; 100633548Sjkh case '/': 100733744Sache *np = '\0'; 100833548Sjkh return -1; 100933744Sache default: 101033744Sache if (code & 0xff00) { 101133744Sache if ((code &~ 0xff) == 0x400) 101233744Sache code = cyr2u[code & 0xff]; 101333744Sache else 101433745Sache code = '?'; 101533744Sache } 101633744Sache *np++ = code; 101733744Sache break; 101833548Sjkh } 101933548Sjkh /* 102033548Sjkh * The size comparison should result in the compiler 102133548Sjkh * optimizing the whole if away 102233548Sjkh */ 102333548Sjkh if (WIN_MAXLEN % WIN_CHARS < sizeof(wep->wePart1) / 2 102433548Sjkh && np > ep) { 102533548Sjkh np[-1] = 0; 102633548Sjkh return -1; 102733548Sjkh } 102833744Sache cp += 2; 102933548Sjkh } 103033548Sjkh for (cp = wep->wePart2, i = sizeof(wep->wePart2)/2; --i >= 0;) { 103133744Sache code = (cp[1] << 8) | cp[0]; 103233744Sache switch (code) { 103333548Sjkh case 0: 103433744Sache *np = '\0'; 103533548Sjkh dp->d_namlen -= sizeof(wep->wePart3)/2 + i + 1; 103633548Sjkh return chksum; 103733548Sjkh case '/': 103833744Sache *np = '\0'; 103933548Sjkh return -1; 104033744Sache default: 104133744Sache if (code & 0xff00) { 104233744Sache if ((code &~ 0xff) == 0x400) 104333744Sache code = cyr2u[code & 0xff]; 104433744Sache else 104533745Sache code = '?'; 104633744Sache } 104733744Sache *np++ = code; 104833744Sache break; 104933548Sjkh } 105033548Sjkh /* 105133548Sjkh * The size comparisons should be optimized away 105233548Sjkh */ 105333548Sjkh if (WIN_MAXLEN % WIN_CHARS >= sizeof(wep->wePart1) / 2 105433548Sjkh && WIN_MAXLEN % WIN_CHARS < (sizeof(wep->wePart1) + sizeof(wep->wePart2)) / 2 105533548Sjkh && np > ep) { 105633548Sjkh np[-1] = 0; 105733548Sjkh return -1; 105833548Sjkh } 105933744Sache cp += 2; 106033548Sjkh } 106133548Sjkh for (cp = wep->wePart3, i = sizeof(wep->wePart3)/2; --i >= 0;) { 106233744Sache code = (cp[1] << 8) | cp[0]; 106333744Sache switch (code) { 106433548Sjkh case 0: 106533744Sache *np = '\0'; 106633548Sjkh dp->d_namlen -= i + 1; 106733548Sjkh return chksum; 106833548Sjkh case '/': 106933744Sache *np = '\0'; 107033548Sjkh return -1; 107133744Sache default: 107233744Sache if (code & 0xff00) { 107333744Sache if ((code &~ 0xff) == 0x400) 107433744Sache code = cyr2u[code & 0xff]; 107533744Sache else 107633745Sache code = '?'; 107733744Sache } 107833744Sache *np++ = code; 107933744Sache break; 108033548Sjkh } 108133548Sjkh /* 108233548Sjkh * See above 108333548Sjkh */ 108433548Sjkh if (WIN_MAXLEN % WIN_CHARS >= (sizeof(wep->wePart1) + sizeof(wep->wePart2)) / 2 108533548Sjkh && np > ep) { 108633548Sjkh np[-1] = 0; 108733548Sjkh return -1; 108833548Sjkh } 108933744Sache cp += 2; 109033548Sjkh } 109133548Sjkh return chksum; 109233548Sjkh} 109333548Sjkh 109433548Sjkh/* 109533548Sjkh * Compute the checksum of a DOS filename for Win95 use 109633548Sjkh */ 109733548Sjkhu_int8_t 109833548SjkhwinChksum(name) 109933548Sjkh u_int8_t *name; 110033548Sjkh{ 110133548Sjkh int i; 110233548Sjkh u_int8_t s; 110333548Sjkh 110433548Sjkh for (s = 0, i = 11; --i >= 0; s += *name++) 110533548Sjkh s = (s << 7)|(s >> 1); 110633548Sjkh return s; 110733548Sjkh} 110833548Sjkh 110933548Sjkh/* 111033548Sjkh * Determine the number of slots necessary for Win95 names 111133548Sjkh */ 111233548Sjkhint 111333548SjkhwinSlotCnt(un, unlen) 111433548Sjkh const u_char *un; 111533548Sjkh int unlen; 111633548Sjkh{ 111733548Sjkh for (un += unlen; unlen > 0; unlen--) 111833548Sjkh if (*--un != ' ' && *un != '.') 111933548Sjkh break; 112033548Sjkh if (unlen > WIN_MAXLEN) 112133548Sjkh return 0; 112233548Sjkh return howmany(unlen, WIN_CHARS); 112333548Sjkh} 1124