* 3.5.x regression: misquoting command line arguments from native processes
@ 2024-04-03 15:53 David Allsopp
2024-04-09 20:38 ` Corinna Vinschen
0 siblings, 1 reply; 5+ messages in thread
From: David Allsopp @ 2024-04-03 15:53 UTC (permalink / raw)
To: The Cygwin Mailing List
I have what appears to be a regression in Cygwin 3.5.0 which, owing to
a CI system lagging behind, we've only just discovered.
In order to torture our Unicode support, OCaml's Windows CI compiles
its sources in C:\projects\🐫реализация-mingw64 (that's a directory
under C:\projects with the camel emoji U+1F42A followed, I am told, by
the word "implementation" in Russian then with the name of the "port"
of OCaml appended in ASCII).
AppVeyor updated to Cygwin 3.5.1 at the weekend and now, during the
build, we end up with the following kind of error seen in, say,
https://ci.appveyor.com/project/avsm/ocaml/builds/49538801#L711. What
is happening here is that Cygwin's make has passed
C:\projects\🐫реализация-mingw64\byte\bin\flexdll_mingw64.o to a
non-Cygwin program (flexlink.exe) which has called back to Cygwin's
x86_64-w64-mingw32-gcc ultimately via CreateProcess and which has then
failed.
I have reduced this chain to the following program, which takes
argv[1] and calls Cygwin's stat program using _wsystem with argv[1]
"-quoted:
#include <stdlib.h>
#include <string.h>
int wmain(int argc, wchar_t **argv) {
int len = 2 + 6 + wcslen(argv[1]);
wchar_t *cmd = (wchar_t *)malloc(len * sizeof(wchar_t));
wcscpy(cmd, L"stat ");
cmd[5] = L'"';
cmd[6] = 0;
wcscat(cmd, argv[1]);
cmd[len - 1] = L'"';
cmd[len] = 0;
_wsystem(cmd);
}
Compile with x86_64-w64-mingw32-gcc -municode -DUNICODE -D_UNICODE and
then see it works on Cygwin 3.4.10:
$ ./t.exe 'C:\Devel\🐫реализация-mingw64\flexdll\flexdll_mingw64.o'
File: C:\Devel\🐫реализация-mingw64\flexdll\flexdll_mingw64.o
Size: 11441 Blocks: 12 IO Block: 65536 regular file
Device: 35525,39577 Inode: 3659174698707368 Links: 1
Access: (0644/-rw-r--r--) Uid: (1049719/ DRA) Gid: (1049089/Domain Users)
Access: 2024-04-03 16:43:36.782037800 +0100
Modify: 2024-04-03 14:09:08.012955600 +0100
Change: 2024-04-03 14:09:08.012955600 +0100
Birth: 2024-04-03 14:09:08.006955500 +0100
but fails on 3.5.1+ (including the latest 3.6.0-0.109 snapshot):
$ ./t.exe 'C:\Devel\🐫реализация-mingw64\flexdll\flexdll_mingw64.o'
stat: cannot stat
'"C:\Devel\'$'\360\237\220\253''реализация-mingw64\flexdll\flexdll_mingw64.o':
No such file or directory
Note the stray double-quote at the start of the error. This appears to
be down to the presence of the emoji, rather than the Cyrillic
characters, this is fine in both:
$ ./t.exe 'C:\Devel\реализация\flexdll\flexdll_mingw64.o'
File: C:\Devel\реализация\flexdll\flexdll_mingw64.o
Size: 11441 Blocks: 12 IO Block: 65536 regular file
Device: 35525,39577 Inode: 16607023627376791 Links: 1
Access: (0644/-rw-r--r--) Uid: (1049719/ DRA) Gid: (1049089/Domain Users)
Access: 2024-04-03 16:48:43.003742000 +0100
Modify: 2024-04-03 14:09:08.012955600 +0100
Change: 2024-04-03 16:32:35.648039600 +0100
Birth: 2024-04-03 16:32:35.647539400 +0100
All best,
David
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: 3.5.x regression: misquoting command line arguments from native processes
2024-04-03 15:53 3.5.x regression: misquoting command line arguments from native processes David Allsopp
@ 2024-04-09 20:38 ` Corinna Vinschen
2024-04-18 12:46 ` Corinna Vinschen
0 siblings, 1 reply; 5+ messages in thread
From: Corinna Vinschen @ 2024-04-09 20:38 UTC (permalink / raw)
To: David Allsopp; +Cc: The Cygwin Mailing List
Hi David,
On Apr 3 16:53, David Allsopp via Cygwin wrote:
> I have what appears to be a regression in Cygwin 3.5.0 which, owing to
> a CI system lagging behind, we've only just discovered.
> [...]
> $ ./t.exe 'C:\Devel\🐫реализация-mingw64\flexdll\flexdll_mingw64.o'
> stat: cannot stat
> '"C:\Devel\'$'\360\237\220\253''реализация-mingw64\flexdll\flexdll_mingw64.o':
> No such file or directory
Thanks a lot for the STC!
I think I fixed that for 3.5.4. I pushed a patch and the test release
cygwin-3.6.0-0.115.g579064bf4d40 is just building and should be ready
for testing in an hour or two.
Please give it a try.
Thanks,
Corinna
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: 3.5.x regression: misquoting command line arguments from native processes
2024-04-09 20:38 ` Corinna Vinschen
@ 2024-04-18 12:46 ` Corinna Vinschen
2024-04-20 7:43 ` David Allsopp
0 siblings, 1 reply; 5+ messages in thread
From: Corinna Vinschen @ 2024-04-18 12:46 UTC (permalink / raw)
To: David Allsopp; +Cc: cygwin
Hi David,
On Apr 9 22:38, Corinna Vinschen via Cygwin wrote:
> On Apr 3 16:53, David Allsopp via Cygwin wrote:
> > I have what appears to be a regression in Cygwin 3.5.0 which, owing to
> > a CI system lagging behind, we've only just discovered.
> > [...]
> > $ ./t.exe 'C:\Devel\🐫реализация-mingw64\flexdll\flexdll_mingw64.o'
> > stat: cannot stat
> > '"C:\Devel\'$'\360\237\220\253''реализация-mingw64\flexdll\flexdll_mingw64.o':
> > No such file or directory
>
> Thanks a lot for the STC!
>
> I think I fixed that for 3.5.4. I pushed a patch and the test release
> cygwin-3.6.0-0.115.g579064bf4d40 is just building and should be ready
> for testing in an hour or two.
>
> Please give it a try.
Sorry for nagging, but do you have some feedback, be it bad or good?
Thanks,
Corinna
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: 3.5.x regression: misquoting command line arguments from native processes
2024-04-18 12:46 ` Corinna Vinschen
@ 2024-04-20 7:43 ` David Allsopp
2024-04-22 8:15 ` Corinna Vinschen
0 siblings, 1 reply; 5+ messages in thread
From: David Allsopp @ 2024-04-20 7:43 UTC (permalink / raw)
To: cygwin
Hi Corinna,
> On Apr 9 22:38, Corinna Vinschen via Cygwin wrote:
> > On Apr 3 16:53, David Allsopp via Cygwin wrote:
> > > I have what appears to be a regression in Cygwin 3.5.0 which, owing to
> > > a CI system lagging behind, we've only just discovered.
> > > [...]
> > > $ ./t.exe 'C:\Devel\🐫реализация-mingw64\flexdll\flexdll_mingw64.o'
> > > stat: cannot stat
> > > '"C:\Devel\'$'\360\237\220\253''реализация-mingw64\flexdll\flexdll_mingw64.o':
> > > No such file or directory
> >
> > Thanks a lot for the STC!
> >
> > I think I fixed that for 3.5.4. I pushed a patch and the test release
> > cygwin-3.6.0-0.115.g579064bf4d40 is just building and should be ready
> > for testing in an hour or two.
> >
> > Please give it a try.
>
> Sorry for nagging, but do you have some feedback, be it bad or good?
Sorry for having needed nagging! It does indeed fix it, thank you -
our smoke-test Bactrian camels can be restored 🐫
All best,
David
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: 3.5.x regression: misquoting command line arguments from native processes
2024-04-20 7:43 ` David Allsopp
@ 2024-04-22 8:15 ` Corinna Vinschen
0 siblings, 0 replies; 5+ messages in thread
From: Corinna Vinschen @ 2024-04-22 8:15 UTC (permalink / raw)
To: David Allsopp; +Cc: cygwin
Hi David,
On Apr 20 08:43, David Allsopp via Cygwin wrote:
> Hi Corinna,
>
> > On Apr 9 22:38, Corinna Vinschen via Cygwin wrote:
> > > On Apr 3 16:53, David Allsopp via Cygwin wrote:
> > > > I have what appears to be a regression in Cygwin 3.5.0 which, owing to
> > > > a CI system lagging behind, we've only just discovered.
> > > > [...]
> > > > $ ./t.exe 'C:\Devel\🐫реализация-mingw64\flexdll\flexdll_mingw64.o'
> > > > stat: cannot stat
> > > > '"C:\Devel\'$'\360\237\220\253''реализация-mingw64\flexdll\flexdll_mingw64.o':
> > > > No such file or directory
> > >
> > > Thanks a lot for the STC!
> > >
> > > I think I fixed that for 3.5.4. I pushed a patch and the test release
> > > cygwin-3.6.0-0.115.g579064bf4d40 is just building and should be ready
> > > for testing in an hour or two.
> > >
> > > Please give it a try.
> >
> > Sorry for nagging, but do you have some feedback, be it bad or good?
>
> Sorry for having needed nagging! It does indeed fix it, thank you -
> our smoke-test Bactrian camels can be restored 🐫
Great, nice to read this. I'll keep my camel testcase around, just in
case :)
Thanks,
Corinna
^ permalink raw reply [flat|nested] 5+ messages in thread
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2024-04-03 15:53 3.5.x regression: misquoting command line arguments from native processes David Allsopp
2024-04-09 20:38 ` Corinna Vinschen
2024-04-18 12:46 ` Corinna Vinschen
2024-04-20 7:43 ` David Allsopp
2024-04-22 8:15 ` Corinna Vinschen
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