OS_Develop/FreeDOS
OS_Develop/FreeDOS
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67 Commits

Author SHA1 Message Date
Bart Oldeman
99d287bd2c fattab.c now remembers if the old FAT entry was free or not, so the free 
space adjustment could be moved back to fattab.c.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@921 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-05-04 09:43:06 +00:00
Bart Oldeman
ecfcb9be29 dir_read() no longer updates the diroff counter. This eliminates the NEW 
field, simplifies remove_lfn_entries(), and avoids a bug if you delete
the first entry in the root directory on FAT32.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@911 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-30 17:14:33 +00:00
Bart Oldeman
5d712fc2a6 Avoid bitfields for fnodes, using flags instead. 
Replaced droot field by checks for f_dirstart == 0.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@867 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 10:46:37 +00:00
Bart Oldeman
eed84806f8 dos_commit was missing a save_far_f_node() call. That caused the tar xzvf 
problem. Also fixed the case when no far fnodes are available anymore.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@837 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-27 17:12:16 +00:00
Bart Oldeman
0f4d6ea6a1 Define O_ACCMODE and use it instead of "3" for the open access mask. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@828 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-26 23:20:55 +00:00
Bart Oldeman
416e1014cf Declare save_far_fnode before use. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@823 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-25 00:42:27 +00:00
Bart Oldeman
f63eea565a Made the main fnodes far so they can be in UMBs. 
Internally the kernel uses two near fnodes though, to save on codesize
and fmemcpy's if necessary. Having memory management on two fnodes is
a little silly but I just want to make sure with the panic message
that we never accidentally try to use three near fnodes at the same time.
(two are used at the same time by rename, commit, and merge_file_changes).
This can be cleaned up later.

Anyway. 644736 bytes free conv memory isn't bad.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@821 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-23 22:45:38 +00:00
Bart Oldeman
d39d3a84f4 Merge three almost identical pieces of code used to allocate a new 
directory entry in creat, rename, and mkdir, into alloc_find_free.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@819 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-23 01:36:16 +00:00
Bart Oldeman
05cd65a193 Merge find_fat_free() and extend() -- they were almost identical. 
Have a simplified clause for f_cluster == FREE.
Set f_cluster = FREE in shrink_file if the file is set to 0 bytes; in
that case we should set the current cluster to FREE even if it is
currently a LONG_LAST_CLUSTER.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@818 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-23 00:45:24 +00:00
Bart Oldeman
ce290a033f Eliminate f_back field. 
extend() now uses f_cluster instead of f_back, while map_cluster makes
sure it's not set to LONG_LAST_CLUSTER (but to the cluster before it)
when calling extend().
extend() and first_fat() now return the new cluster number or
LONG_LAST_CLUSTER, just like find_fat_free()
Hopefully I didn't break anything... Initial testing was successful.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@816 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-22 22:33:05 +00:00
Bart Oldeman
df538bb32a Eliminated f_sector and f_boff fields from fnodes. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@814 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-22 16:56:34 +00:00
Bart Oldeman
b0009452ee Remove add_far. adjust_far can do the job. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@813 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-22 16:38:46 +00:00
Bart Oldeman
c73ee8084a Remove the 65535 check for root directories. It's checked against 
a different limit later anyway later, and it breaks remove_lfn_entries...


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@812 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-22 15:43:56 +00:00
Bart Oldeman
11a7b69e5c Make f_diroff an entry offset so it can be 16bits. Enforce the 65536 
entry limit in dir_read(). Saves 80 bytes or so + 2 bytes in every f_node.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@811 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-22 10:29:26 +00:00
Bart Oldeman
82261c0caf add_far can get away with adding 16 bit offsets only. Saves ~200 bytes! 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@807 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-21 13:56:13 +00:00
Bart Oldeman
0d6d0b8523 (with Lucho) -- remove the dosnames path 67 length check. Review the places 
where it really matters (chdir and mkdir).


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@796 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-07 12:59:38 +00:00
Bart Oldeman
0e0abcd685 Added explicit (UWORD) type casts to avoid compiler warnings and sometimes 
save a few bytes too. Also changed the FcbParseFname return value:
returns offset portion of pointer (SI) instead of the number of bytes to
be added to SI.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@775 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-02-07 18:04:50 +00:00
Bart Oldeman
5567aba08b Fixed bug #1722: dir_close() was called for normal files (via map_cluster 
and find_fat_free). This completely messed up rwblock. Removed these calls
(for directories they are already covered at a higher level) and added
a few sanity checks to dir_close and dir_write.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@761 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-01-27 23:18:24 +00:00
Bart Oldeman
4f1a117069 * FAT32 kernels should ignore the upper word of the cluster number for 
FAT16 partitions (just like FAT16 kernels do)
* added extra checks to make sure that invalid FAT entries are never
  followed
* made put_console() public to be able to print a message in case of
  FAT corruption
* some small optimizations and header cleanups (some suggested by Arkady)


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@753 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-01-26 00:51:49 +00:00
Bart Oldeman
ef3e38de7b Rename blockio by rqblockio (namespace conflict with dsk.c) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@734 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-12-02 23:34:43 +00:00
Bart Oldeman
a56e592871 Move permission check to better place (only for necessary for opening 
existing files), not for creating them -- suggested by Steffen.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@727 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-11-23 18:03:35 +00:00
Bart Oldeman
3232712fae force r/o open for FCB and legacy creat if the file is read-only 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@726 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-11-16 16:21:29 +00:00
Bart Oldeman
09dca9d224 Move common code in media_check() to a new blockio() function. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@724 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-10-30 14:34:39 +00:00
Bart Oldeman
bdc5569995 Set the Critical Error number immediately after calling a device driver. 
This solves problems with int24 handlers that call int21/ah=59.
Let truename and blockrw return with an error if there is a critical error.
Don't overwrite the critical error # with the DOS error #.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@709 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-09-24 19:34:11 +00:00
Bart Oldeman
bef6672954 Use 0x10000UL (avoids Turbo C warning) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@667 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-08-31 10:22:32 +00:00
Bart Oldeman
c444161296 Use near bpb on the stack in bpb_to_dpb. 
Make sure the number of FAT sectors is actually enough to hold that
many clusters. Otherwise back the number of clusters down (LG & AB)


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@655 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-08-28 20:30:09 +00:00
Bart Oldeman
a4abd642bf Fix buffer deletion problem with multi-sector writes. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@611 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-06-17 08:38:20 +00:00
Bart Oldeman
355580dded Eliminate highwater fnode field. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@540 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-03-12 23:29:08 +00:00
Bart Oldeman
b43f271014 "rmdir" and FAT32 fixes from Tom. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@499 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-02-20 20:51:42 +00:00
Bart Oldeman
e67a8f5058 Changes for kernel 2028 (see history.txt) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@485 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-12-09 00:17:15 +00:00
Bart Oldeman
83b77cbb1b Changes for kernel 2027rc. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@427 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-10-22 02:40:19 +00:00
Bart Oldeman
2c6dbdf194 Fix compilation using -p or -DDEBUG 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@415 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-08-04 10:26:31 +00:00
Bart Oldeman
dfeb595f8e Last changes for kernel 2027 test. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@414 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-08-04 01:14:18 +00:00
Bart Oldeman
511bf63d16 Cleaned up task.c (merged much of DOSExe/ComLoader); transform the CDS into 
a proper array.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@413 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-08-03 16:54:09 +00:00
Bart Oldeman
93bc26d0d5 Added more functions (memchr, memcmp, strcmp) to asmsupt.asm. Removed strncpy 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@398 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-08-03 01:48:49 +00:00
Bart Oldeman
2098578b1b kernel 2026b changes 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@382 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-05-08 22:49:35 +00:00
Bart Oldeman
b2496a6fbd kernel 2026a final changes (mainly FCB fixes) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@353 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-02-16 19:20:20 +00:00
Bart Oldeman
df1651b5a4 Small clean-ups for ke2026-test. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@344 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-01-27 01:13:07 +00:00
Bart Oldeman
0e8b739c4c kernel 2026 test changes (see history.txt) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@343 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-01-23 22:29:41 +00:00
Bart Oldeman
b6d423a1b3 Ran all .c and .h files through "indent" 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@329 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-11-18 14:01:12 +00:00
Bart Oldeman
fe51b7a036 Truncated and disabled $Logs, fixed r/w bugs for kernel 2025b 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@326 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-11-17 23:26:45 +00:00
Bart Oldeman
5a18de7cbb Kernel 2025a final changes. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@321 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-11-13 23:36:45 +00:00
Bart Oldeman
9e007d884e kernel 2025a changes: see history.txt 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@314 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-11-04 19:47:39 +00:00
Bart Oldeman
048c87bbac FAT32 support, misc fixes, INT2F/AH=12 support, drive B: handling 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@305 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-09-23 20:39:44 +00:00
Bart Oldeman
d9c11a4095 Time and date fixes, Ctrl-S/P, findfirst/next, FCBs, buffers, tsr unloading 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@278 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-08-19 12:58:36 +00:00
Bart Oldeman
c5cb6b1cac Fixes for FORMAT+SYS, FATFS, get current dir, kernel init memory situation. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@274 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-07-28 18:13:06 +00:00
Bart Oldeman
d4a9888f7b fixes for FCBs, DJGPP ls, DBLBYTE, dyninit allocation (2024e). 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@269 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-07-24 16:56:29 +00:00
Bart Oldeman
03865c6b69 Support for Brian's FORMAT, DJGPP libc compilation, cleanups, MSCDEX 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@265 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-07-22 01:58:58 +00:00
Bart Oldeman
c1b1896480 LBA/FCB/FAT/SYS/Ctrl-C/ioctl fixes + memory savings 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@260 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-07-09 22:19:33 +00:00
Bart Oldeman
68375764dd BUFFERS tuning and misc bug fixes/cleanups (2024c). 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@232 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-06-03 14:16:18 +00:00