* Re: Bug#510038: zsh: glob qualifer - doesn't work correctly on dangling symlinks
[not found] <20081228214141.GA7972@ay.vinc17.org>
@ 2008-12-29 3:41 ` Clint Adams
2008-12-29 4:32 ` Vincent Lefevre
0 siblings, 1 reply; 2+ messages in thread
From: Clint Adams @ 2008-12-29 3:41 UTC (permalink / raw)
To: Vincent Lefevre, 510038; +Cc: zsh-workers
On Sun, Dec 28, 2008 at 10:41:41PM +0100, Vincent Lefevre wrote:
> The glob qualifer - doesn't work correctly on dangling symlinks.
> For instance:
>
> $ zsh <<EOF
> set -ex
> echo $ZSH_VERSION
> mkdir globtest-dir
> cd globtest-dir
> touch file1
> chmod 644 file1
> ln -s file1 file2
> ln -s file0 file3
> ls -l file*
> ls -l file*(-W)
> EOF
>
> gives:
>
> +zsh:2> echo 4.3.6
> 4.3.6
> +zsh:3> mkdir globtest-dir
> +mkdir:0> mkdir globtest-dir
> +zsh:4> cd globtest-dir
> +zsh:5> touch file1
> +zsh:6> chmod 644 file1
> +zsh:7> ln -s file1 file2
> +ln:0> ln -s file1 file2
> +zsh:8> ln -s file0 file3
> +ln:0> ln -s file0 file3
> +zsh:9> ls -l file1 file2 file3
> -rw-r--r-- 1 lefevre lefevre 0 2008-12-28 22:34:28 file1
> lrwxrwxrwx 1 lefevre lefevre 5 2008-12-28 22:34:28 file2 -> file1
> lrwxrwxrwx 1 lefevre lefevre 5 2008-12-28 22:34:28 file3 -> file0
> +zsh:10> ls -l file3
> lrwxrwxrwx 1 lefevre lefevre 5 2008-12-28 22:34:28 file3 -> file0
>
> file*(-W) should have no matches.
>
> zsh 4.3.9 on my Mac OS X machine behaves correctly.
Are you sure? Is the stat() call succeeding on MacOS even if the
link is dangling?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Bug#510038: zsh: glob qualifer - doesn't work correctly on dangling symlinks
2008-12-29 3:41 ` Bug#510038: zsh: glob qualifer - doesn't work correctly on dangling symlinks Clint Adams
@ 2008-12-29 4:32 ` Vincent Lefevre
0 siblings, 0 replies; 2+ messages in thread
From: Vincent Lefevre @ 2008-12-29 4:32 UTC (permalink / raw)
To: zsh-workers; +Cc: 510038
On 2008-12-29 03:41:14 +0000, Clint Adams wrote:
> On Sun, Dec 28, 2008 at 10:41:41PM +0100, Vincent Lefevre wrote:
[...]
> > +zsh:9> ls -l file1 file2 file3
> > -rw-r--r-- 1 lefevre lefevre 0 2008-12-28 22:34:28 file1
> > lrwxrwxrwx 1 lefevre lefevre 5 2008-12-28 22:34:28 file2 -> file1
> > lrwxrwxrwx 1 lefevre lefevre 5 2008-12-28 22:34:28 file3 -> file0
> > +zsh:10> ls -l file3
> > lrwxrwxrwx 1 lefevre lefevre 5 2008-12-28 22:34:28 file3 -> file0
> >
> > file*(-W) should have no matches.
> >
> > zsh 4.3.9 on my Mac OS X machine behaves correctly.
>
> Are you sure? Is the stat() call succeeding on MacOS even if the
> link is dangling?
Here's the kdump on Mac OS X:
7035 zsh CALL lstat(0xbfffb0d9,0xbfffb54c)
7035 zsh NAMI "file1"
7035 zsh RET lstat 0
7035 zsh CALL lstat(0xbfffb0d9,0xbfffb54c)
7035 zsh NAMI "file2"
7035 zsh RET lstat 0
7035 zsh CALL stat(0xbfffb0d9,0xbfffb5ac)
7035 zsh NAMI "file2"
7035 zsh RET stat 0
7035 zsh CALL lstat(0xbfffb0d9,0xbfffb54c)
7035 zsh NAMI "file3"
7035 zsh RET lstat 0
7035 zsh CALL stat(0xbfffb0d9,0xbfffb5ac)
7035 zsh NAMI "file3"
7035 zsh RET stat -1 errno 2 No such file or directory
7035 zsh CALL getdirentries(0x3,0x1807800,0x1000,0x409594)
7035 zsh RET getdirentries 0
7035 zsh CALL lseek(0x3,0,0)
7035 zsh RET lseek 0
7035 zsh CALL close(0x3)
7035 zsh RET close 0
7035 zsh CALL ioctl(0x2,0x4004667a ,0xbfffb6a8)
7035 zsh RET ioctl 0
7035 zsh CALL write(0x2,0x87b24,0x21)
7035 zsh GIO fd 2 wrote 33 bytes
"zsh: no matches found: file*(-W)
"
Seems OK.
BTW, there's a bug earlier: a file is closed twice:
7028 zsh CALL write(0x2,0x87b24,0x13)
7028 zsh GIO fd 2 wrote 19 bytes
"+zsh:2> echo 4.3.9
"
7028 zsh RET write 19/0x13
7028 zsh CALL write(0x1,0x87f24,0x6)
7028 zsh GIO fd 1 wrote 6 bytes
"4.3.9
"
7028 zsh RET write 6
7028 zsh CALL close(0xd)
7028 zsh RET close 0
7028 zsh CALL close(0xd)
7028 zsh RET close -1 errno 9 Bad file descriptor
--
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon)
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[not found] <20081228214141.GA7972@ay.vinc17.org>
2008-12-29 3:41 ` Bug#510038: zsh: glob qualifer - doesn't work correctly on dangling symlinks Clint Adams
2008-12-29 4:32 ` Vincent Lefevre
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