Per https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/xbd_chap04.html:
"A pathname that begins with two successive slashes may be interpreted
in an implementation-defined manner, although more than two leading
slashes shall be treated as a single slash."
So more than 2 leading slashes are supposed to be folded into one,
which our dirname neglected. Fix that.
Fixes: 24e8fc6872 ("* cygwin.din (basename): Export.")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This patch hails from Git for Windows (where the Cygwin runtime is used
in the form of a slightly modified MSYS2 runtime), where it is a
well-established technique to let the `$HOME` variable define where the
current user's home directory is, falling back to `$HOMEDRIVE$HOMEPATH`
and `$USERPROFILE`.
The idea is that we want to share user-specific settings between
programs, whether they be Cygwin, MSYS2 or not. Unfortunately, we
cannot blindly activate the "db_home: windows" setting because in some
setups, the user's home directory is set to a hidden directory via an
UNC path (\\share\some\hidden\folder$) -- something many programs
cannot handle correctly, e.g. `cmd.exe` and other native Windows
applications that users want to employ as Git helpers.
The established technique is to allow setting the user's home directory
via the environment variables mentioned above: `$HOMEDRIVE$HOMEPATH` or
`$USERPROFILE`. This has the additional advantage that it is much
faster than querying the Windows user database.
Of course this scheme needs to be opt-in. For that reason, it needs
to be activated explicitly via `db_home: env` in `/etc/nsswitch.conf`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
- Windows 10 requires WSL
- Windows 11 only allows enabling casesensitivity if dir is empty
Fixes: 0d4b39d37b ("Cygwin: Add lsattr and chattr tools")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Latest Windows supports more EU locales than GLibc, so some of the
@euro locales are not covered by checking the GLibc locale defaults.
Those locales have no long history, they are all UTF-8. So just
check for @euro in the UTF-8 case and set them to ISO-8859-15.
Fixes: 2483e54be8 ("Cygwin: locale: Set default charset from Linux locale -> codeset mapping")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
@cjknarrow and @cjkwide modifiers are newlib only, so they need
some tweaking in __set_charset_from_locale.
Fixes: 2483e54be8 ("Cygwin: locale: Set default charset from Linux locale -> codeset mapping")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Drop usage of newlocale/nl_langinfo_l/freelocale.
Call __set_charset_from_locale instead, and make sure to call it
with modifier, if any, otherwise suffer wrong results.
Fixes: c42b98bdc6 ("Cygwin: introduce /proc/codesets and /proc/locales")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
ResolveLocaleName does not simply return an error value if it
can't resolve a locale. Rather, it returns an empty string and
the length of this string: 1.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This reverts commit 15898b9588.
The idea behind this patch was wrong. Systems are supposed to
support iso639-only strings as settings for the locale environment
variables, and they are not necessarily available in the
/usr/share/locale/locale.alias file.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
The Windows function ResolveLocaleName is next to useless to
convert a partial locale identifier into a full, supported
locale identifier. It converts anything which vaguely resembles
a locale into some other locale it supports.
Bad examples are:
"en-XY" gets converted to "en-US", and worse,
"ff-BF" gets converted to "ff-Latn-SN", even though "ff-Adlm-BF"
exists!
To check if a locale is supported, we have to enumerate all valid
Windows locales, and return the match, even if the locale in Windows
requires a script. Implement resolve_locale_name() as replacement
function for ResolveLocaleName.
Fixes: e95a7a7955 ("Cygwin: convert Windows locale handling from LCID to ISO5646 strings")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This was incorrect behaviour. The only valid way to support those
is by adding them to /usr/share/locale/locale.alias.
Fixes: e95a7a7955 ("Cygwin: convert Windows locale handling from LCID to ISO5646 strings")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This allows newlocale to return with a valid errno if the
locale is invalid.
Fixes: e95a7a7955 ("Cygwin: convert Windows locale handling from LCID to ISO5646 strings")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
The sr_XY locales are supposed to default to cyrillic, but the code
always attached a @cyrillic, same reason as in the previous commit.
Special case "sr" further to workaround that issue.
Fixes: c42b98bdc6 ("Cygwin: introduce /proc/codesets and /proc/locales")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Due to the way locales are evaluated in Windows, we can't ask for
the script of the "sd-IN" locale, because Windows only knows the
"sd-Deva-IN" locale. So asking for the script of the "sd" locale
returns "Arab;", because "sd" is converted to "sd-Arab-PK".
Special case "sd-IN" to workaround that issue.
Fixes: c42b98bdc6 ("Cygwin: introduce /proc/codesets and /proc/locales")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
__loadlocale never sets errno, but newlocale is supposed to
return ENOENT if the locale isn't valid.
Fixes: aefd8b5b51 ("Implement newlocale, freelocale, duplocale, uselocale")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Renaming files returns STATUS_INVALID_PARAMETE on a bind mounted file system
in hyper-v container with FILE_RENAME_POSIX_SEMANTICS.
Disable the use_posix_semantics flag and retry.
Signed-off-by: Yoshinao Muramatsu <ysno@ac.auone-net.jp>
Deleting files returns STATUS_INVALID_PARAMETE on a bind mounted file system
in hyper-v container with FILE_DISPOSITION_POSIX_SEMANTICS.
Therefore fall back to default method.
This code is suggested by Johannes Schindelin on github
and I change it more simple.
Signed-off-by: Yoshinao Muramatsu <ysno@ac.auone-net.jp>
If a host NTFS is mapped into a Hyper-V isolated container, the
OPEN_BY_FILE_ID filesystem flag is missing, just as if that NTFS
is a remote drive. However, NtQueryVolumeInformationFile claims
the drive is a local drive.
We can use this fact to learn that the process is running under
Hyper-V, and that the Hyper-V isolated process can't use rename/unlink
with POSIX semantics. Strange enough, the POSIX_UNLINK_RENAME filesystem
flag is still set...
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
These flags are used to check a remote filesystem. Not all
flags supported by a local NTFS are available when checking
a remote NTFS. Fix the flag set accordingly, otherwise
the remote NTFS will ba handled as CIFS.
Fixes: fcccdc4021 ("Cygwin: fs_info: update filesystem flags and check Windows 7 flags")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Except for the "C" or "POSIX" locale, checking for start <= finish
is always wrong. Range start must be <= range finish in terms of the
locale's collating order. So make sure to call always wcscoll(), even
in the "C"/"POSIX" locale, which makes wcscoll equivalent to wcscmp
anyway.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
computejumps() moves g->charjump to a position relativ to the value of
CHAR_MIN. As such, g->charjump doesn't necessarily point to the address
actually allocated. While regfree() takes that into account, the low
memory handling in regcomp_internal() doesn't. Fix that by free'ing
the actually allocated address, as in regfree().
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Useless indirection. Rename _unlink_nt back to unlink_nt
and call the function directly with `sharable' flag as needed.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Update the list of filesystem flags to the flags supported since
Windows 7. Make sure to use the new flags only with Windows
filesystems, not with 3rd party filesystems.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
wint_t is unsigned int and the test checks for a negative value. Thus,
it's optimized out by gcc. Add the cast from commit 44caccfca2 to
avoid this.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
...and use __wcollate_range_cmp. This will have to be tweaked further
when supporting collation symbols...
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
- Don't print all RT signals, just the allowed patterns
- Add -L/--table option to print a table of signals with signal
numbers
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Allow RT<N>, RTMIN+<N> and RTMAX-<N> for RT signals.
Translate RT signal numbers to an "RT<N>" string.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Make kill -V and kill -l exit immediately, thus stopping to
print "not enough arguments" accidentally.
Fixes: ef48a2cad3 ("* kill.cc (prog_name) New global variable.")
Fixes: c49fa76263 ("* Makefile.in (kill.exe): Add as a specific target.")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
The signal names for the real-time signals contain spaces from
the beginning of their availability. Fix that.
Fixes: 61522196c7 ("* Merge in cygwin-64bit-branch.")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
setup >=2.925 indicates to postinstall and preremove scripts the Start
Menu suffix to use via the CYGWIN_START_MENU_SUFFIX env var.
It also indicates, via the CYGWIN_SETUP_OPTIONS env var, if the option
to disable Start Menu shortcut creation is supplied.
Update the Cygwin documentation postinstall and preremove scripts to
take these env vars into consideration.
Addresses https://cygwin.com/pipermail/cygwin/2023-March/253220.html
Take the opportunity to follow FreeBSD's and Linux's lead in recasting
macro inline code as calls to static inline functions. This allows the
macros to be type-safe. In addition, added a lower bound check to the
functions that use a cpu number to avoid a potential buffer underrun on
a bad argument. h/t to Corinna for the advice on recasting.
Fixes: 362b98b49a ("Cygwin: Implement CPU_SET(3) macros")
Remove old 'kludge' code which does not seem necessary anymore. The
comment of the 'kludge' is as follows.
* syscalls.cc (setsid): On second thought, in the spirit of keeping
things kludgy, set ctty to -2 here as a special flag, and...
(open): ...only eschew setting O_NOCTTY when that case is detected.
Fixes: c38a2d8373
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
This patch replaces ctty constants with more descriptive macros
(CTTY_UNINITIALIZED and CTTY_RELEASED) rather than -1 and -2 as
well as checking sign with CTTY_IS_VALID().
Fixes: 3b7df69aaa (Cygwin: ctty: Add comments for the special values: -1 and -2.)
Suggested-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
The conversion function g_Ctoc missed to drop the flag
values from the wint_t value. That wasn't noticable with
the original version because it used a 64 bit Char type
and the flags were in the upper 32 bit region. So the
flag values were silently dropped when wcrtomb was called.
After converting Char to wint_t, we have to do drop the
flags explicitely.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
If a CPU implements EL2 as its highest exception level then programs
using newlib may start in hypervisor mode. In that state it is not
trivial to switch into the various EL1 modes to configure the
individual exception stacks, so do not try.
Corinna Vinschen
Johannes Schindelin
Yoshinao Muramatsu
Jon Turney
Mark Geisert
Sebastian Huber
Takashi Yano
Srinath Parvathaneni