IBM PCDOS technical reference says to call BLDBPB if there are no used
buffers, so we only do it then, instead of flushing the buffers.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1458 6ac86273-5f31-0410-b378-82cca8765d1b
was always preceeded by split_path(). The return code is now an error code,
DE_FILENOTFND, DE_PATHNOTFND, or SUCCESS, depending on the failure.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1445 6ac86273-5f31-0410-b378-82cca8765d1b
dir/filename separator to 0 can be avoided, and we don't need to calculate
its location in split_path(). Without the trick many more char * path
arguments in the kernel can become "const char *".
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1444 6ac86273-5f31-0410-b378-82cca8765d1b
(split_path()) which only uses it to find out if the path ends in a backslash
and the length of the directory part.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1442 6ac86273-5f31-0410-b378-82cca8765d1b
added was the need to check for "d:\" paths which return DE_NFILES.
Also, findfirst("d:\nonexist\*.*",D_VOLID) should fail even if it actually
searches in d:\.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1441 6ac86273-5f31-0410-b378-82cca8765d1b
to truename (newstuff.c), because TRUENAME should check these characters
before passing paths on to fatfs.c & fatdir.c.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1440 6ac86273-5f31-0410-b378-82cca8765d1b
* ignore 0x40 (D_DEVICE) in search attribute.
* if you specify D_VOLID + one or more of D_HIDDEN, D_SYSTEM, and D_DIR you
will get files *and* volume labels in the specified directory, not forced
to the root directory.
* VOLID searches must look at the search pattern name too, or do not match.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1438 6ac86273-5f31-0410-b378-82cca8765d1b
Because of the explicit dir_write() calls we only need them in situations
where SFTs where used, that is for open files but not for directories.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1436 6ac86273-5f31-0410-b378-82cca8765d1b
Simple country support is kept: COUNTRY=31 will look for country.sys but
if it does not exist, not complain and load the built-in info.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1430 6ac86273-5f31-0410-b378-82cca8765d1b
* merge unstable kernel optimizations
* enable seek for int2f/AX=1228
* -1 is a valid offset, so we need to process the return code seperately
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1429 6ac86273-5f31-0410-b378-82cca8765d1b
r_si/r_di contents added as documented in PC-DOS Technical Update.
I also moved the CharReqHdr filling in to just before execrh, and
made the command table a static const so it is outside the SDA (OW places
it in CONST2).
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1427 6ac86273-5f31-0410-b378-82cca8765d1b
stack usage. Always return DE_ACCESS when the device fails instead
of DE_DEVICE, as DE_DEVICE is only used for renames between devices that
are not the same.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1422 6ac86273-5f31-0410-b378-82cca8765d1b
dos_mkdir() and extend_dir(). Now dos_mkdir() calls this function to clear
the new directory, and then creates the . and .. entries using higher level
functions instead of dealing with the blocks directly.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1421 6ac86273-5f31-0410-b378-82cca8765d1b
is empty and then opens the parent and deletes the real directory.
No longer returns DE_FILENOTFND(2), but return DE_PATHNOTFND(3) instead.
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1416 6ac86273-5f31-0410-b378-82cca8765d1b
Its only purpose left was to flush buffers, which isn't necessary after
just open/read, so we can move that to dir_write().
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1410 6ac86273-5f31-0410-b378-82cca8765d1b
