[sedwards] 16824: added port of dosfsck. Does not work yet as I cannot figure how to open the device. Win32 file access code is included ported from mkdosfs.c
added port of dosfsck. Does not work yet as I cannot figure how to open the device. Win32 file access code is included ported from mkdosfs.c Added: trunk/rosapps/sysutils/dosfsck/ Added: trunk/rosapps/sysutils/dosfsck/.cvsignore Added: trunk/rosapps/sysutils/dosfsck/CHANGES Added: trunk/rosapps/sysutils/dosfsck/COPYING Added: trunk/rosapps/sysutils/dosfsck/Makefile Added: trunk/rosapps/sysutils/dosfsck/README Added: trunk/rosapps/sysutils/dosfsck/boot.c Added: trunk/rosapps/sysutils/dosfsck/boot.h Added: trunk/rosapps/sysutils/dosfsck/byteorder.h Added: trunk/rosapps/sysutils/dosfsck/byteswap.h Added: trunk/rosapps/sysutils/dosfsck/byteswap1.h Added: trunk/rosapps/sysutils/dosfsck/check.c Added: trunk/rosapps/sysutils/dosfsck/check.h Added: trunk/rosapps/sysutils/dosfsck/common.c Added: trunk/rosapps/sysutils/dosfsck/common.h Added: trunk/rosapps/sysutils/dosfsck/compiler.h Added: trunk/rosapps/sysutils/dosfsck/dosfsck.8 Added: trunk/rosapps/sysutils/dosfsck/dosfsck.c Added: trunk/rosapps/sysutils/dosfsck/dosfsck.h Added: trunk/rosapps/sysutils/dosfsck/fat.c Added: trunk/rosapps/sysutils/dosfsck/fat.h Added: trunk/rosapps/sysutils/dosfsck/file.c Added: trunk/rosapps/sysutils/dosfsck/file.h Added: trunk/rosapps/sysutils/dosfsck/generic.h Added: trunk/rosapps/sysutils/dosfsck/io.c Added: trunk/rosapps/sysutils/dosfsck/io.h Added: trunk/rosapps/sysutils/dosfsck/lfn.c Added: trunk/rosapps/sysutils/dosfsck/lfn.h Added: trunk/rosapps/sysutils/dosfsck/little_endian.h Added: trunk/rosapps/sysutils/dosfsck/mkdosfs.c Added: trunk/rosapps/sysutils/dosfsck/msdos_fs.h Added: trunk/rosapps/sysutils/dosfsck/swab.h Added: trunk/rosapps/sysutils/dosfsck/types.h.bak Added: trunk/rosapps/sysutils/dosfsck/version.h Added: trunk/rosapps/sysutils/dosfsck/vfat.h _____
Added: trunk/rosapps/sysutils/dosfsck/.cvsignore --- trunk/rosapps/sysutils/dosfsck/.cvsignore 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/.cvsignore 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1 @@
+dosfsck _____
Added: trunk/rosapps/sysutils/dosfsck/CHANGES --- trunk/rosapps/sysutils/dosfsck/CHANGES 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/CHANGES 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1,10 @@
+Changes from version 0 to 1 +=========================== + + - fixed an off-by-two error in check.c:check_file + - fixed marking clusters bad in fat.c:set_fat + - fat.c:reclaim_free was also reclaiming bad clusters. + - fixed many incorrect byte sex conversions in check.c and fat.c + - -t and -w now require -a or -r + - added option -d to drop files. + - added option -u to try to "undelete" non-directory files. _____
Added: trunk/rosapps/sysutils/dosfsck/COPYING --- trunk/rosapps/sysutils/dosfsck/COPYING 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/COPYING 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1,345 @@
+The license below applies to dosfsck, which is copyrighted by +Werner Almesberger almesber@lrc.di.epfl.ch and Roman Hodek +Roman.Hodek@informatik.uni-erlangen.de. + + + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +operating system on which the executable runs, unless that component +itself accompanies the executable. + +If distribution of executable or object code is made by offering +access to copy from a designated place, then offering equivalent +access to copy the source code from the same place counts as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + + 4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) 19yy <name of author> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + <signature of Ty Coon>, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. _____
Added: trunk/rosapps/sysutils/dosfsck/Makefile --- trunk/rosapps/sysutils/dosfsck/Makefile 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/Makefile 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1,44 @@
+CC=mingw32-gcc +OBJECTS = boot.o check.o common.o dosfsck.o fat.o file.o io.o lfn.o + +all: dosfsck.exe + +dosfsck.exe: $(OBJECTS) + $(CC) -o $@ $(LDFLAGS) $^ + +.c.o: + $(CC) -c $(CFLAGS) $*.c + +install: dosfsck + mkdir -p $(SBINDIR) $(MANDIR) + install -m 755 dosfsck $(SBINDIR) + install -m 644 dosfsck.8 $(MANDIR) + rm -f $(SBINDIR)/fsck.msdos + rm -f $(SBINDIR)/fsck.vfat + ln -s dosfsck $(SBINDIR)/fsck.msdos + ln -s dosfsck $(SBINDIR)/fsck.vfat + rm -f $(MANDIR)/fsck.msdos.8 + ln -s dosfsck.8 $(MANDIR)/fsck.msdos.8 + ln -s dosfsck.8 $(MANDIR)/fsck.vfat.8 + +clean: + rm -f *.o *.s *.i *~ #*# tmp_make .#* .new* + +distclean: clean + rm -f *.a dosfsck + +dep: + sed '/### Dependencies/q' <Makefile >tmp_make + $(CPP) $(CFLAGS) -MM *.c >>tmp_make + mv tmp_make Makefile + +### Dependencies +boot.o: boot.c common.h dosfsck.h io.h boot.h +check.o: check.c common.h dosfsck.h io.h fat.h file.h lfn.h check.h +common.o: common.c common.h +dosfsck.o: dosfsck.c common.h dosfsck.h io.h boot.h fat.h file.h \ + check.h +fat.o: fat.c common.h dosfsck.h io.h check.h fat.h +file.o: file.c common.h file.h +io.o: io.c dosfsck.h common.h io.h +lfn.o: lfn.c common.h io.h dosfsck.h lfn.h file.h _____
Added: trunk/rosapps/sysutils/dosfsck/README --- trunk/rosapps/sysutils/dosfsck/README 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/README 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1,60 @@
+dosfsck, version 1 +================== + +WARNING: This is ALPHA test software. Use at your own risk. + +dosfsck is the Linux equivalent of PC/MS-DOS' CHKDSK. It checks the +consistency of PC/MS-DOS file systems and optionally tries to repair +them. The tests dosfsck performs are described in the man page. + +dosfsck needs header files from dosfs.9 (or later) to compile. + +Before using dosfsck to repair a file system that contains data of any +value, you should verify that dosfsck is able to correct all reported +errors. (Except fatal errors and those reported as unfixable, of +course.) In order to do this, run it with the -V option, e.g. + + dosfsck -V /dev/sda1 (automatic check) +or dosfsck -V -r /dev/sda1 (interactive check and repair) + +dosfsck will perform two passes: in the first pass, inconsistencies are +detected and a list of changes to correct the problems is generated. In +the second pass, those changes are applied whenever dosfsck reads data +from disk. Hence no fixable errors should be reported in the second +pass if the first pass was successful. + +Please notify the author if fixable errors are reported in the second +pass. + +After verifying that dosfsck appears to be able to perform the desired +operations, either confirm that you want the changes to be performed +(if dosfsck was started with -r) or re-run dosfsck with the -a option +(if it was started without -r). + +Please send bug reports, comments, flames, etc. to +almesber@nessie.cs.id.ethz.ch or almesber@bernina.ethz.ch + +- Werner + +FAT32 and LFN support +===================== + +I've finally implemented some of the new features of MS-DOS +filesystems: FAT32 and long filenames. + +FAT32 is automatically detected and of course the different FAT +structure is handled. (Internally many changes were needed, so 32 bit +variables for all cluster numbers and 64 bit vars for offsets inside +the filesystem.) New checks for FAT32 are most notably on the backup +boot sector and the new info sector. Also the possibility that the +root directory resides in a cluster chain (instead of in a static +area) on FAT32 is handled. + +dosfscheck also knows about VFAT long filenames now. It parses those +names and uses them in listings etc. when available. There are also +some checks on the (cruel) structure of how LFNs are stored and some +attempts to fix problems. + +- Roman roman@hodek.net + +BTW, version 2 isn't ALPHA anymore :-) _____
Added: trunk/rosapps/sysutils/dosfsck/boot.c --- trunk/rosapps/sysutils/dosfsck/boot.c 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/boot.c 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1,370 @@
+/* boot.c - Read and analyze ia PC/MS-DOS boot sector */ + +/* Written 1993 by Werner Almesberger */ + +/* FAT32, VFAT, Atari format support, and various fixes additions May 1998 + * by Roman Hodek Roman.Hodek@informatik.uni-erlangen.de */ + +#include <stdio.h> +#include <string.h> +#include <sys/types.h> + +#include "common.h" +#include "dosfsck.h" +#include "io.h" +#include "boot.h" + + +#define ROUND_TO_MULTIPLE(n,m) ((n) && (m) ? (n)+(m)-1-((n)-1)%(m) : 0) + /* don't divide by zero */ + +static struct { + __u8 media; + char *descr; +} mediabytes[] = { + { 0xf0, "5.25" or 3.5" HD floppy" }, + { 0xf8, "hard disk" }, + { 0xf9, "3,5" 720k floppy 2s/80tr/9sec or " + "5.25" 1.2M floppy 2s/80tr/15sec" }, + { 0xfa, "5.25" 320k floppy 1s/80tr/8sec" }, + { 0xfb, "3.5" 640k floppy 2s/80tr/8sec" }, + { 0xfc, "5.25" 180k floppy 1s/40tr/9sec" }, + { 0xfd, "5.25" 360k floppy 2s/40tr/9sec" }, + { 0xfe, "5.25" 160k floppy 1s/40tr/8sec" }, + { 0xff, "5.25" 320k floppy 2s/40tr/8sec" }, +}; + +#if defined __alpha || defined __ia64__ || defined __s390x__ || defined __x86_64__ || defined __ppc64__ +/* Unaligned fields must first be copied byte-wise */ +#define GET_UNALIGNED_W(f) \ + ({ \ + unsigned short __v; \ + memcpy( &__v, &f, sizeof(__v) ); \ + CF_LE_W( *(unsigned short *)&f ); \ + }) +#else +#define GET_UNALIGNED_W(f) CF_LE_W( *(unsigned short *)&f ) +#endif + + +static char *get_media_descr( unsigned char media ) +{ + int i; + + for( i = 0; i < sizeof(mediabytes)/sizeof(*mediabytes); ++i ) { + if (mediabytes[i].media == media) + return( mediabytes[i].descr ); + } + return( "undefined" ); +} + +static void dump_boot(DOS_FS *fs,struct boot_sector *b,unsigned lss) +{ + unsigned short sectors; + + printf("Boot sector contents:\n"); + if (!atari_format) { + char id[9]; + strncpy(id,b->system_id,8); + id[8] = 0; + printf("System ID "%s"\n",id); + } + else { + /* On Atari, a 24 bit serial number is stored at offset 8 of the boot + * sector */ + printf("Serial number 0x%x\n", + b->system_id[5] | (b->system_id[6]<<8) | (b->system_id[7]<<16)); + } + printf("Media byte 0x%02x (%s)\n",b->media,get_media_descr(b->media)); + printf("%10d bytes per logical sector\n",GET_UNALIGNED_W(b->sector_size)); + printf("%10d bytes per cluster\n",fs->cluster_size); + printf("%10d reserved sector%s\n",CF_LE_W(b->reserved), + CF_LE_W(b->reserved) == 1 ? "" : "s"); + printf("First FAT starts at byte %llu (sector %llu)\n", + (unsigned long long)fs->fat_start, + (unsigned long long)fs->fat_start/lss); + printf("%10d FATs, %d bit entries\n",b->fats,fs->fat_bits); + printf("%10d bytes per FAT (= %u sectors)\n",fs->fat_size, + fs->fat_size/lss); + if (!fs->root_cluster) { + printf("Root directory starts at byte %llu (sector %llu)\n", + (unsigned long long)fs->root_start, + (unsigned long long)fs->root_start/lss); + printf("%10d root directory entries\n",fs->root_entries); + } + else { + printf( "Root directory start at cluster %lu (arbitrary size)\n", + fs->root_cluster); + } + printf("Data area starts at byte %llu (sector %llu)\n", + (unsigned long long)fs->data_start, + (unsigned long long)fs->data_start/lss); + printf("%10lu data clusters (%llu bytes)\n",fs->clusters, + (unsigned long long)fs->clusters*fs->cluster_size); + printf("%u sectors/track, %u heads\n",CF_LE_W(b->secs_track), + CF_LE_W(b->heads)); + printf("%10u hidden sectors\n", + atari_format ? + /* On Atari, the hidden field is only 16 bit wide and unused */ + (((unsigned char *)&b->hidden)[0] | + ((unsigned char *)&b->hidden)[1] << 8) : + CF_LE_L(b->hidden)); + sectors = GET_UNALIGNED_W( b->sectors ); + printf("%10u sectors total\n", sectors ? sectors : CF_LE_L(b->total_sect)); +} + +static void check_backup_boot(DOS_FS *fs, struct boot_sector *b, int lss) +{ + struct boot_sector b2; + + if (!fs->backupboot_start) { + printf( "There is no backup boot sector.\n" ); + if (CF_LE_W(b->reserved) < 3) { + printf( "And there is no space for creating one!\n" ); + return; + } + if (interactive) + printf( "1) Create one\n2) Do without a backup\n" ); + else printf( " Auto-creating backup boot block.\n" ); + if (!interactive || get_key("12","?") == '1') { + int bbs; + /* The usual place for the backup boot sector is sector 6. Choose + * that or the last reserved sector. */ + if (CF_LE_W(b->reserved) >= 7 && CF_LE_W(b->info_sector) != 6) + bbs = 6; + else { + bbs = CF_LE_W(b->reserved) - 1; + if (bbs == CF_LE_W(b->info_sector)) + --bbs; /* this is never 0, as we checked reserved >= 3! */ + } + fs->backupboot_start = bbs*lss; + b->backup_boot = CT_LE_W(bbs); + fs_write(fs->backupboot_start,sizeof(*b),b); + fs_write((off_t)offsetof(struct boot_sector,backup_boot), + sizeof(b->backup_boot),&b->backup_boot); + printf( "Created backup of boot sector in sector %d\n", bbs ); + return; + } + else return; + } + + fs_read(fs->backupboot_start,sizeof(b2),&b2); + if (memcmp(b,&b2,sizeof(b2)) != 0) { + /* there are any differences */ + __u8 *p, *q; + int i, pos, first = 1; + char buf[20]; + + printf( "There are differences between boot sector and its backup.\n" ); + printf( "Differences: (offset:original/backup)\n " ); + pos = 2; + for( p = (__u8 *)b, q = (__u8 *)&b2, i = 0; i < sizeof(b2); + ++p, ++q, ++i ) { + if (*p != *q) { + sprintf( buf, "%s%u:%02x/%02x", first ? "" : ", ", + (unsigned)(p-(__u8 *)b), *p, *q ); + if (pos + strlen(buf) > 78) printf( "\n " ), pos = 2; + printf( "%s", buf ); + pos += strlen(buf); + first = 0; + } + } + printf( "\n" ); + + if (interactive) + printf( "1) Copy original to backup\n" + "2) Copy backup to original\n" + "3) No action\n" ); + else printf( " Not automatically fixing this.\n" ); + switch (interactive ? get_key("123","?") : '3') { + case '1': + fs_write(fs->backupboot_start,sizeof(*b),b); + break; + case '2': + fs_write(0,sizeof(b2),&b2); + break; + default: + break; + } + } +} + +static void init_fsinfo(struct info_sector *i) +{ + i->magic = CT_LE_L(0x41615252); + i->signature = CT_LE_L(0x61417272); + i->free_clusters = CT_LE_L(-1); + i->next_cluster = CT_LE_L(2); + i->boot_sign = CT_LE_W(0xaa55); +} + +static void read_fsinfo(DOS_FS *fs, struct boot_sector *b,int lss) +{ + struct info_sector i; + + if (!b->info_sector) { + printf( "No FSINFO sector\n" ); + if (interactive) + printf( "1) Create one\n2) Do without FSINFO\n" ); + else printf( " Not automatically creating it.\n" ); + if (interactive && get_key("12","?") == '1') { + /* search for a free reserved sector (not boot sector and not + * backup boot sector) */ + __u32 s; + for( s = 1; s < CF_LE_W(b->reserved); ++s ) + if (s != CF_LE_W(b->backup_boot)) break; + if (s > 0 && s < CF_LE_W(b->reserved)) { + init_fsinfo(&i); + fs_write((off_t)s*lss,sizeof(i),&i); + b->info_sector = CT_LE_W(s); + fs_write((off_t)offsetof(struct boot_sector,info_sector), + sizeof(b->info_sector),&b->info_sector); + if (fs->backupboot_start) + fs_write(fs->backupboot_start+ + offsetof(struct boot_sector,info_sector), + sizeof(b->info_sector),&b->info_sector); + } + else { + printf( "No free reserved sector found -- " + "no space for FSINFO sector!\n" ); + return; + } + } + else return; + } + + fs->fsinfo_start = CF_LE_W(b->info_sector)*lss; + fs_read(fs->fsinfo_start,sizeof(i),&i); + + if (i.magic != CT_LE_L(0x41615252) || + i.signature != CT_LE_L(0x61417272) || + i.boot_sign != CT_LE_W(0xaa55)) { + printf( "FSINFO sector has bad magic number(s):\n" ); + if (i.magic != CT_LE_L(0x41615252)) + printf( " Offset %llu: 0x%08x != expected 0x%08x\n", + (unsigned long long)offsetof(struct info_sector,magic), + CF_LE_L(i.magic),0x41615252); + if (i.signature != CT_LE_L(0x61417272)) + printf( " Offset %llu: 0x%08x != expected 0x%08x\n", + (unsigned long long)offsetof(struct info_sector,signature), + CF_LE_L(i.signature),0x61417272); + if (i.boot_sign != CT_LE_W(0xaa55)) + printf( " Offset %llu: 0x%04x != expected 0x%04x\n", + (unsigned long long)offsetof(struct info_sector,boot_sign), + CF_LE_W(i.boot_sign),0xaa55); + if (interactive) + printf( "1) Correct\n2) Don't correct (FSINFO invalid then)\n" ); + else printf( " Auto-correcting it.\n" ); + if (!interactive || get_key("12","?") == '1') { + init_fsinfo(&i); + fs_write(fs->fsinfo_start,sizeof(i),&i); + } + else fs->fsinfo_start = 0; + } + + if (fs->fsinfo_start) + fs->free_clusters = CF_LE_L(i.free_clusters); +} + +void read_boot(DOS_FS *fs) +{ + struct boot_sector b; + unsigned total_sectors; + unsigned short logical_sector_size, sectors; + unsigned fat_length; + off_t data_size; + + fs_read(0,sizeof(b),&b); + logical_sector_size = GET_UNALIGNED_W(b.sector_size); + if (!logical_sector_size) die("Logical sector size is zero."); + fs->cluster_size = b.cluster_size*logical_sector_size; + if (!fs->cluster_size) die("Cluster size is zero."); + if (b.fats != 2 && b.fats != 1) + die("Currently, only 1 or 2 FATs are supported, not %d.\n",b.fats); + fs->nfats = b.fats; + sectors = GET_UNALIGNED_W(b.sectors); + total_sectors = sectors ? sectors : CF_LE_L(b.total_sect); + if (verbose) printf("Checking we can access the last sector of the filesystem\n"); + /* Can't access last odd sector anyway, so round down */ + fs_test((off_t)((total_sectors & ~1)-1)*(off_t)logical_sector_size, + logical_sector_size); + fat_length = CF_LE_W(b.fat_length) ? + CF_LE_W(b.fat_length) : CF_LE_L(b.fat32_length); + fs->fat_start = (off_t)CF_LE_W(b.reserved)*logical_sector_size; + fs->root_start = ((off_t)CF_LE_W(b.reserved)+b.fats*fat_length)* + logical_sector_size; + fs->root_entries = GET_UNALIGNED_W(b.dir_entries); + fs->data_start = fs->root_start+ROUND_TO_MULTIPLE(fs->root_entries << + MSDOS_DIR_BITS,logical_sector_size); + data_size = (off_t)total_sectors*logical_sector_size-fs->data_start; + fs->clusters = data_size/fs->cluster_size; + fs->root_cluster = 0; /* indicates standard, pre-FAT32 root dir */ + fs->fsinfo_start = 0; /* no FSINFO structure */ + fs->free_clusters = -1; /* unknown */ + if (!b.fat_length && b.fat32_length) { + fs->fat_bits = 32; + fs->root_cluster = CF_LE_L(b.root_cluster); + if (!fs->root_cluster && fs->root_entries) + /* M$ hasn't specified this, but it looks reasonable: If + * root_cluster is 0 but there is a separate root dir + * (root_entries != 0), we handle the root dir the old way. Give a + * warning, but convertig to a root dir in a cluster chain seems + * to complex for now... */ + printf( "Warning: FAT32 root dir not in cluster chain! " + "Compability mode...\n" ); + else if (!fs->root_cluster && !fs->root_entries) + die("No root directory!"); + else if (fs->root_cluster && fs->root_entries) + printf( "Warning: FAT32 root dir is in a cluster chain, but " + "a separate root dir\n" + " area is defined. Cannot fix this easily.\n" ); + + fs->backupboot_start = CF_LE_W(b.backup_boot)*logical_sector_size; + check_backup_boot(fs,&b,logical_sector_size); + + read_fsinfo(fs,&b,logical_sector_size); + } + else if (!atari_format) { + /* On real MS-DOS, a 16 bit FAT is used whenever there would be too + * much clusers otherwise. */ + fs->fat_bits = (fs->clusters > MSDOS_FAT12) ? 16 : 12; + } + else { + /* On Atari, things are more difficult: GEMDOS always uses 12bit FATs + * on floppies, and always 16 bit on harddisks. */ + fs->fat_bits = 16; /* assume 16 bit FAT for now */ + /* If more clusters than fat entries in 16-bit fat, we assume + * it's a real MSDOS FS with 12-bit fat. */ + if (fs->clusters+2 > fat_length*logical_sector_size*8/16 || + /* if it's a floppy disk --> 12bit fat */ + device_no == 2 || + /* if it's a ramdisk or loopback device and has one of the usual + * floppy sizes -> 12bit FAT */ + ((device_no == 1 || device_no == 7) && + (total_sectors == 720 || total_sectors == 1440 || + total_sectors == 2880))) + fs->fat_bits = 12; + } + /* On FAT32, the high 4 bits of a FAT entry are reserved */ + fs->eff_fat_bits = (fs->fat_bits == 32) ? 28 : fs->fat_bits; + fs->fat_size = fat_length*logical_sector_size; + if (fs->clusters > ((unsigned long long)fs->fat_size*8/fs->fat_bits)-2) + die("File system has %d clusters but only space for %d FAT entries.", + fs->clusters,((unsigned long long)fs->fat_size*8/fs->fat_bits)-2); + if (!fs->root_entries && !fs->root_cluster) + die("Root directory has zero size."); + if (fs->root_entries & (MSDOS_DPS-1)) + die("Root directory (%d entries) doesn't span an integral number of " + "sectors.",fs->root_entries); + if (logical_sector_size & (SECTOR_SIZE-1)) + die("Logical sector size (%d bytes) is not a multiple of the physical " + "sector size.",logical_sector_size); + /* ++roman: On Atari, these two fields are often left uninitialized */ + if (!atari_format && (!b.secs_track || !b.heads)) + die("Invalid disk format in boot sector."); + if (verbose) dump_boot(fs,&b,logical_sector_size); +} + +/* Local Variables: */ +/* tab-width: 8 */ +/* End: */ _____
Added: trunk/rosapps/sysutils/dosfsck/boot.h --- trunk/rosapps/sysutils/dosfsck/boot.h 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/boot.h 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1,13 @@
+/* boot.h - Read and analyze ia PC/MS-DOS boot sector */ + +/* Written 1993 by Werner Almesberger */ + + +#ifndef _BOOT_H +#define _BOOT_H + +void read_boot(DOS_FS *fs); + +/* Reads the boot sector from the currently open device and initializes *FS */ + +#endif _____
Added: trunk/rosapps/sysutils/dosfsck/byteorder.h --- trunk/rosapps/sysutils/dosfsck/byteorder.h 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/byteorder.h 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1,59 @@
+#ifndef _I386_BYTEORDER_H +#define _I386_BYTEORDER_H + +//#include "types.h" +#include "compiler.h" + +#ifdef __GNUC__ + +/* For avoiding bswap on i386 */ +//#ifdef __KERNEL__ +//#include <linux/config.h> +//#endif + +static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) +{ +#ifdef CONFIG_X86_BSWAP + __asm__("bswap %0" : "=r" (x) : "0" (x)); +#else + __asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */ + "rorl $16,%0\n\t" /* swap words */ + "xchgb %b0,%h0" /* swap higher bytes */ + :"=q" (x) + : "0" (x)); +#endif + return x; +} + +static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 val) +{ + union { + struct { __u32 a,b; } s; + __u64 u; + } v; + v.u = val; +#ifdef CONFIG_X86_BSWAP + asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1" + : "=r" (v.s.a), "=r" (v.s.b) + : "0" (v.s.a), "1" (v.s.b)); +#else + v.s.a = ___arch__swab32(v.s.a); + v.s.b = ___arch__swab32(v.s.b); + asm("xchgl %0,%1" : "=r" (v.s.a), "=r" (v.s.b) : "0" (v.s.a), "1" (v.s.b)); +#endif + return v.u; +} + +/* Do not define swab16. Gcc is smart enough to recognize "C" version and + convert it into rotation or exhange. */ + +#define __arch__swab64(x) ___arch__swab64(x) +#define __arch__swab32(x) ___arch__swab32(x) + +#define __BYTEORDER_HAS_U64__ + +#endif /* __GNUC__ */ + +//#include "little_endian.h" + +#endif /* _I386_BYTEORDER_H */ _____
Added: trunk/rosapps/sysutils/dosfsck/byteswap.h --- trunk/rosapps/sysutils/dosfsck/byteswap.h 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/byteswap.h 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1,40 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _BYTESWAP_H +#define _BYTESWAP_H 1 + +/* Get the machine specific, optimized definitions. */ +#include "byteswap1.h" + + +/* The following definitions must all be macros since otherwise some + of the possible optimizations are not possible. */ + +/* Return a value with all bytes in the 16 bit argument swapped. */ +#define bswap_16(x) __bswap_16 (x) + +/* Return a value with all bytes in the 32 bit argument swapped. */ +#define bswap_32(x) __bswap_32 (x) + +#if defined __GNUC__ && __GNUC__ >= 2 +/* Return a value with all bytes in the 64 bit argument swapped. */ +# define bswap_64(x) __bswap_64 (x) +#endif + +#endif /* byteswap.h */ _____
Added: trunk/rosapps/sysutils/dosfsck/byteswap1.h --- trunk/rosapps/sysutils/dosfsck/byteswap1.h 2005-07-27 23:11:38 UTC (rev 16823) +++ trunk/rosapps/sysutils/dosfsck/byteswap1.h 2005-07-28 02:37:42 UTC (rev 16824) @@ -0,0 +1,133 @@
+/* Macros to swap the order of bytes in integer values. + Copyright (C) 1997, 1998, 2000, 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. [truncated at 1000 lines; 7350 more skipped]
-
sedwards＠svn.reactos.com