From: Houder <houder@xs4all.nl>
To: cygwin@cygwin.com
Subject: Re: Odd, is it not? mkdir 'e:\' cannot be undone by rmdir 'e:\' ...
Date: Thu, 29 Aug 2019 15:19:00 -0000 [thread overview]
Message-ID: <ee1138b29ee4be60d62d86d59f581b2e@smtp-cloud8.xs4all.net> (raw)
In-Reply-To: <20190828142220.GN11632@calimero.vinschen.de>
On Wed, 28 Aug 2019 16:22:20, Corinna Vinschen wrote:
> > As simple as that?
> >
> > diff --git a/winsup/cygwin/dir.cc b/winsup/cygwin/dir.cc
> > index b757851d5c7f..747b1582af50 100644
> > --- a/winsup/cygwin/dir.cc
> > +++ b/winsup/cygwin/dir.cc
> > @@ -314,13 +314,13 @@ mkdir (const char *dir, mode_t mode)
> > set_errno (ENOENT);
> > __leave;
> > }
> > - if (isdirsep (dir[strlen (dir) - 1]))
> > + if (dir[strlen (dir) - 1] =3D=3D '/')
> > {
> > /* This converts // to /, but since both give EEXIST, we're okay. */
> > char *buf;
> > char *p =3D stpcpy (buf =3D tp.c_get (), dir) - 1;
> > dir =3D buf;
> > - while (p > dir && isdirsep (*p))
> > + while (p > dir && *p =3D=3D '/')
> > *p-- =3D '\0';
> > }
> > if (!(fh =3D build_fh_name (dir, PC_SYM_NOFOLLOW)))
>
> One problem here is, what to do about border cases like
>
> $ mkdir a\/\/\/
>
> In theory slashes and backslashes should both be treated as dir
> separators. Handling a case like this so that all expectations
> are satisfied is next to impossible, I guess.
How about dropping Eric's code snippet in winsup/cygwin/dir.cc ?????
Subdirectory 'a' is created. No problem there. Perhaps the patch has
become superfluous/ redundant over time?
I have tried different "values" for the path-argument to mkdir, and
have not found a problem while the code snippet is being skipped.
What am I missing?
Henri
-----
Breakpoint 1 at 0x1800548b9: file /usr/src/debug/cygwin-3.1.0-0.2/winsup/cygwin/dir.cc, line 317.
Breakpoint 2 at 0x1800548e3: file /usr/src/debug/cygwin-3.1.0-0.2/winsup/cygwin/dir.cc, line 326.
(gdb) r
Starting program: /usr/bin/mkdir 'a\/\/\/'
[New Thread 1064.0x1a8c]
[New Thread 1064.0x59c]
Thread 1 "mkdir" hit Breakpoint 1, mkdir (dir=0x800041320 "a\\/\\/\\/", mode=511)
at /usr/src/debug/cygwin-3.1.0-0.2/winsup/cygwin/dir.cc:317
317 if (isdirsep (dir[strlen (dir) - 1]))
(gdb) j dir.cc:326
Continuing at 0x1800548e3.
Thread 1 "mkdir" hit Breakpoint 2, mkdir (dir=0x800041320 "a\\/\\/\\/", mode=511)
at /usr/src/debug/cygwin-3.1.0-0.2/winsup/cygwin/dir.cc:326
326 if (!(fh = build_fh_name (dir, PC_SYM_NOFOLLOW)))
(gdb) c
Continuing.
[Inferior 1 (process 1064) exited normally]
(gdb) quit
64-@@ ls -ld a*
drwxr-xr-x+ 1 Henri None 0 Aug 29 16:47 a
=====
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next prev parent reply other threads:[~2019-08-29 15:05 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-27 15:25 Houder
2019-08-27 16:28 ` Corinna Vinschen
2019-08-27 17:01 ` Houder
2019-08-27 17:32 ` Vince Rice
2019-08-27 17:50 ` Corinna Vinschen
2019-08-28 7:16 ` Houder
2019-08-28 9:22 ` john doe
2019-08-28 11:47 ` Houder
2019-08-28 13:22 ` Corinna Vinschen
2019-08-28 14:16 ` Eric Blake
2019-08-28 14:22 ` Corinna Vinschen
2019-08-28 15:18 ` Corinna Vinschen
2019-08-29 15:19 ` Houder [this message]
2019-08-30 8:20 ` Corinna Vinschen
2019-08-30 12:42 ` Houder
2019-09-01 17:38 ` Houder
2019-09-02 8:15 ` Corinna Vinschen
2019-09-03 8:40 ` Houder
2019-09-03 6:50 ` Andrey Repin
2019-09-19 19:51 ` Ken Brown
2019-09-20 9:11 ` Houder
2019-09-20 18:20 ` Houder
2019-09-21 16:07 ` Ken Brown
2019-09-22 7:34 ` Houder
2019-09-22 14:12 ` Ken Brown
2019-09-07 3:47 ` L A Walsh
2019-08-27 19:48 ` Achim Gratz
2019-08-27 20:58 ` Brian Inglis
2019-08-28 7:16 ` Corinna Vinschen
2019-08-27 22:21 ` Achim Gratz
2019-08-28 13:36 ` Eric Blake
2019-08-28 22:57 ` Houder
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