* problems with exit codes on 64-bit Windows XP Pro x64
@ 2006-02-06 22:40 Kevin Layer
2006-02-06 23:56 ` Samuel Thibault
0 siblings, 1 reply; 9+ messages in thread
From: Kevin Layer @ 2006-02-06 22:40 UTC (permalink / raw)
To: cygwin
[-- Attachment #1: Type: text/plain, Size: 1070 bytes --]
I'm running the latest cygwin (1.5.19, see cygcheck below).
My application is a native Windows app (64 and 32-bit). It includes
no cygwin libraries and is not compiled with cygwin's gcc. When I
execute cygwin programs from my app, however, the return value
obtained from cygwin programs is always 0.
More precisely, I spawn a particular cygwin program, say `make' or
`sh', with CreateProcess(). When the program exits
GetExitCodeProcess() always sets the exit status to 0, no matter what
the real exit status was.
Attached are 2 programs, exit1.c and bug.c. Compile with:
cl bug.c bufferoverflowu.lib
cl exit1.c bufferoverflowu.lib
[cl is MS C/C++ version 14, found in the SDK.]
Then, running on 64-bit windows:
./bug exit1
result = 0
Doing the experimentn on 32-bit Windows gets the output
result = 1
Below are the files.
Is this a known issue? Any chance of a fix?
--
Kevin Layer layer@Franz.COM http://www.franz.com/
Franz Inc., 555 12th St., Suite 1450, Oakland, CA 94607, USA
Phone: (510) 452-2000 FAX: (510) 452-0182
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: exit1.c --]
[-- Type: text/x-c, Size: 308 bytes --]
/* demonstrate a bug in capturing the exit code from shell */
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#define _POSIX_
#include <windows.h>
#include <winsock.h>
#include <limits.h>
main (int argc, char *argv[])
{
exit(1);
}
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #3: bug.c --]
[-- Type: text/x-c, Size: 2897 bytes --]
/* demonstrate a bug in capturing the exit code from shell */
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#define _POSIX_
#include <windows.h>
#include <winsock.h>
#include <limits.h>
main (int argc, char *argv[])
{
int docommand(char *), res;
if (argc > 1) {
res = docommand(argv[1]);
printf("result = %d\n", res);
} else {
printf("no command!\n");
}
}
char *make_command_line(char *cmdline)
{
char buf[1024];
sprintf(buf, "sh -c \"%s\"", cmdline);
return strdup(buf);
}
int
docommand(char *cmdline)
{
STARTUPINFO startup_info;
PROCESS_INFORMATION process_info;
SECURITY_ATTRIBUTES security;
char *newcmdline;
DWORD status;
HANDLE output_write = 0;
HANDLE erroroutput_write = 0;
HANDLE input_read = 0;
HANDLE current_process;
memset(&startup_info, 0, sizeof(startup_info));
startup_info.cb = sizeof(startup_info);
security.nLength = sizeof(security);
security.lpSecurityDescriptor = 0;
security.bInheritHandle = FALSE;
startup_info.dwFlags = STARTF_USESTDHANDLES;
current_process = GetCurrentProcess();
newcmdline=make_command_line(cmdline);
if (!DuplicateHandle(current_process,
GetStdHandle(STD_INPUT_HANDLE),
current_process,
&input_read,
0,
TRUE, /* inherit this one */
DUPLICATE_SAME_ACCESS)) input_read = 0;
startup_info.hStdInput = input_read;
if (!DuplicateHandle(current_process,
GetStdHandle(STD_OUTPUT_HANDLE),
current_process,
&output_write,
0,
TRUE, /* inherit this one */
DUPLICATE_SAME_ACCESS)) output_write = 0;
startup_info.hStdOutput = output_write;
if (!DuplicateHandle(current_process,
GetStdHandle(STD_ERROR_HANDLE),
current_process,
&erroroutput_write,
0,
TRUE, /* inherit this one */
DUPLICATE_SAME_ACCESS)) erroroutput_write = 0;
startup_info.hStdError = erroroutput_write;
if ((startup_info.hStdInput == 0) &&
(startup_info.hStdOutput == 0) &&
(startup_info.hStdError == 0)) {
/* clear this bit */
startup_info.dwFlags &= ~STARTF_USESTDHANDLES;
}
if (!CreateProcess(0, newcmdline, 0, 0,
1, /* inherit handles */
0x214,
0, 0, &startup_info, &process_info)) {
printf("CreateProces(%s) failed. error code %ld\n",
cmdline, GetLastError());
free(newcmdline);
return 1;
}
free(newcmdline);
ResumeThread(process_info.hThread);
CloseHandle(process_info.hThread);
/* Wait for the process to exit */
WaitForSingleObject(process_info.hProcess, INFINITE);
if(!GetExitCodeProcess(process_info.hProcess, &status)) {
printf("GetExitCodeProcess failed! error %ld\n", GetLastError());
exit(1);
}
CloseHandle(process_info.hProcess);
return status;
}
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #4: cygcheck.txt --]
[-- Type: text/x-news, Size: 12546 bytes --]
Cygwin Configuration Diagnostics
Current System Time: Mon Feb 06 14:09:14 2006
Windows XP Professional Ver 5.1 Build 2600
Running under WOW64 on AMD64
Running in Terminal Service session
Path: .
c:\bin
c:\cygwin\bin
c:\cygwin\usr\X11R6\bin
C:\WINDOWS\system32
C:\WINDOWS
C:\WINDOWS\System32\Wbem
C:\Program Files\Microsoft Platform SDK\Bin\.
C:\Program Files\Microsoft Platform SDK\Bin\WinNT\.
c:\Program Files\Debugging Tools for Windows 64-bit
c:\Program Files\Microsoft Platform SDK\bin\win64\x86\AMD64
Output from C:\cygwin\bin\id.exe (nontsec)
UID: 11003(layer) GID: 10513(Domain Users)
544(Administrators) 545(Users) 10512(Domain Admins)
10513(Domain Users)
Output from C:\cygwin\bin\id.exe (ntsec)
UID: 11003(layer) GID: 10513(Domain Users)
544(Administrators) 545(Users) 10512(Domain Admins)
10513(Domain Users)
SysDir: C:\WINDOWS\system32
WinDir: C:\WINDOWS
PWD = '/c/acl80/src/cl/src'
CYGWIN = 'nontsec'
HOME = '/c'
Use '-r' to scan registry
c: hd NTFS 238464Mb 4% CP CS UN PA FC
d: cd N/A N/A
e: cd N/A N/A
f: fd N/A N/A
g: fd N/A N/A
h: fd N/A N/A
i: fd N/A N/A
y: net NTFS 28040Mb 76% CP CS PA layer
z: net NTFS 8350Mb 87% CP CS PA pc
z: /z system textmode
y: /y system textmode
C:\cygwin/lib /usr/lib system textmode
C:\cygwin/bin /usr/bin system textmode
c: /c system textmode
C:\cygwin / system textmode
. /cygdrive system textmode,cygdrive
Found: c:\cygwin\bin\awk.exe
Found: c:\cygwin\bin\bash.exe
Found: c:\cygwin\bin\cat.exe
Found: c:\cygwin\bin\cp.exe
Not Found: cpp (good!)
Not Found: crontab
Found: c:\cygwin\bin\find.exe
Not Found: gcc
Not Found: gdb
Found: c:\cygwin\bin\grep.exe
Found: c:\cygwin\bin\kill.exe
Found: c:\Program Files\Debugging Tools for Windows 64-bit\kill.exe
Not Found: ld
Found: c:\cygwin\bin\ls.exe
Found: c:\cygwin\bin\make.exe
Found: c:\cygwin\bin\mv.exe
Found: c:\cygwin\bin\patch.exe
Found: c:\cygwin\bin\perl.exe
Found: c:\cygwin\bin\rm.exe
Found: c:\cygwin\bin\sed.exe
Found: c:\cygwin\bin\ssh.exe
Found: c:\cygwin\bin\sh.exe
Found: c:\cygwin\bin\tar.exe
Found: c:\cygwin\bin\test.exe
Not Found: vi
Found: c:\cygwin\bin\vim.exe
56k 2005/07/09 c:\cygwin\bin\cygbz2-1.dll
7k 2005/11/20 c:\cygwin\bin\cygcharset-1.dll
16k 2005/10/11 c:\cygwin\bin\cygcompface-0.dll
7k 2003/10/19 c:\cygwin\bin\cygcrypt-0.dll
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1047k 2005/10/11 c:\cygwin\bin\cygcrypto-0.9.8.dll
895k 2004/04/28 c:\cygwin\bin\cygdb-4.2.dll
965k 2005/05/14 c:\cygwin\bin\cygdb-4.3.dll
1156k 2004/04/28 c:\cygwin\bin\cygdb_cxx-4.2.dll
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174k 2004/10/14 c:\cygwin\bin\cygexpat-0.dll
129k 2004/03/11 c:\cygwin\bin\cygfontconfig-1.dll
40k 2005/09/29 c:\cygwin\bin\cygform-8.dll
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35k 2002/01/09 c:\cygwin\bin\cygform6.dll
48k 2003/08/09 c:\cygwin\bin\cygform7.dll
375k 2005/09/06 c:\cygwin\bin\cygfreetype-6.dll
28k 2003/07/20 c:\cygwin\bin\cyggdbm-3.dll
30k 2003/08/11 c:\cygwin\bin\cyggdbm-4.dll
19k 2003/03/22 c:\cygwin\bin\cyggdbm.dll
15k 2003/07/20 c:\cygwin\bin\cyggdbm_compat-3.dll
15k 2003/08/11 c:\cygwin\bin\cyggdbm_compat-4.dll
158k 2004/10/16 c:\cygwin\bin\cyggmp-3.dll
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17k 2001/06/28 c:\cygwin\bin\cyghistory4.dll
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21k 2001/06/20 c:\cygwin\bin\cygintl.dll
132k 2003/08/11 c:\cygwin\bin\cygjpeg-62.dll
41k 2005/08/29 c:\cygwin\bin\cyglber-2-2-7.dll
176k 2005/08/29 c:\cygwin\bin\cygldap-2-2-7.dll
188k 2005/08/29 c:\cygwin\bin\cygldap_r-2-2-7.dll
48k 2005/11/19 c:\cygwin\bin\cygmagic-1.dll
21k 2005/09/29 c:\cygwin\bin\cygmenu-8.dll
26k 2001/04/25 c:\cygwin\bin\cygmenu5.dll
20k 2002/01/09 c:\cygwin\bin\cygmenu6.dll
29k 2003/08/09 c:\cygwin\bin\cygmenu7.dll
21k 2004/10/22 c:\cygwin\bin\cygminires.dll
71k 2004/10/16 c:\cygwin\bin\cygmp-3.dll
95k 2004/10/16 c:\cygwin\bin\cygmpfr-0.dll
67k 2005/09/29 c:\cygwin\bin\cygncurses++-8.dll
156k 2001/04/25 c:\cygwin\bin\cygncurses++5.dll
175k 2002/01/09 c:\cygwin\bin\cygncurses++6.dll
226k 2005/09/29 c:\cygwin\bin\cygncurses-8.dll
226k 2001/04/25 c:\cygwin\bin\cygncurses5.dll
202k 2002/01/09 c:\cygwin\bin\cygncurses6.dll
224k 2003/08/09 c:\cygwin\bin\cygncurses7.dll
11k 2005/09/29 c:\cygwin\bin\cygpanel-8.dll
15k 2001/04/25 c:\cygwin\bin\cygpanel5.dll
12k 2002/01/09 c:\cygwin\bin\cygpanel6.dll
19k 2003/08/09 c:\cygwin\bin\cygpanel7.dll
176k 2005/09/06 c:\cygwin\bin\cygpcre-0.dll
299k 2005/09/06 c:\cygwin\bin\cygpcrecpp-0.dll
6k 2005/09/06 c:\cygwin\bin\cygpcreposix-0.dll
1249k 2005/12/30 c:\cygwin\bin\cygperl5_8.dll
230k 2005/07/11 c:\cygwin\bin\cygpng12.dll
22k 2002/06/09 c:\cygwin\bin\cygpopt-0.dll
94k 2005/11/08 c:\cygwin\bin\cygpq.dll
108k 2001/06/28 c:\cygwin\bin\cygreadline4.dll
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152k 2006/01/28 c:\cygwin\bin\cygreadline6.dll
78k 2004/10/13 c:\cygwin\bin\cygsasl2-2.dll
231k 2005/10/17 c:\cygwin\bin\cygssl-0.9.7.dll
215k 2005/10/11 c:\cygwin\bin\cygssl-0.9.8.dll
304k 2005/07/10 c:\cygwin\bin\cygtiff-5.dll
282k 2003/08/11 c:\cygwin\bin\cygtiff4.dll
281k 2005/07/10 c:\cygwin\bin\cygtiffxx-5.dll
27k 2005/10/23 c:\cygwin\bin\cygungif-4.dll
65k 2005/08/23 c:\cygwin\bin\cygz.dll
1763k 2006/01/20 c:\cygwin\bin\cygwin1.dll
Cygwin DLL version info:
DLL version: 1.5.19
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 150
Shared data: 4
DLL identifier: cygwin1
Mount registry: 2
Cygnus registry name: Cygnus Solutions
Cygwin registry name: Cygwin
Program options name: Program Options
Cygwin mount registry name: mounts v2
Cygdrive flags: cygdrive flags
Cygdrive prefix: cygdrive prefix
Cygdrive default prefix:
Build date: Fri Jan 20 13:28:43 EST 2006
CVS tag: cr-0x5ef
Shared id: cygwin1S4
243k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygdps-1.dll
26k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygdpstk-1.dll
21k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygfontenc-1.dll
36k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygFS-6.dll
358k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygGL-1.dll
438k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygGLU-1.dll
75k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygICE-6.dll
9k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygoldX-6.dll
1413k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygOSMesa-4.dll
20k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygpsres-1.dll
30k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygSM-6.dll
877k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygX11-6.dll
254k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXaw-6.dll
356k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXaw-7.dll
363k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXaw-8.dll
275k 2004/01/13 c:\cygwin\usr\X11R6\bin\cygXaw3d-7.dll
9k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXcomposite-1.dll
30k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXcursor-1.dll
9k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXdamage-1.dll
7k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXevie-1.dll
49k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXext-6.dll
16k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXfixes-3.dll
56k 2004/03/11 c:\cygwin\usr\X11R6\bin\cygXft-1.dll
63k 2004/03/23 c:\cygwin\usr\X11R6\bin\cygXft-2.dll
27k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXi-6.dll
125k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygxkbfile-1.dll
12k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygxkbui-1.dll
76k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXmu-6.dll
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26k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXp-6.dll
52k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXpm-4.dll
12k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXrandr-2.dll
28k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXrender-1.dll
8k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXRes-1.dll
40k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygxrx-6.dll
25k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygxrxnest-6.dll
282k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXt-6.dll
27k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXTrap-6.dll
17k 2005/02/23 c:\cygwin\usr\X11R6\bin\cygXtst-6.dll
No Cygwin services found.
Cygwin Package Information
Package Version
_update-info-dir 00352-1
alternatives 1.3.20a-2
ash 20040127-3
base-files 3.7-1
base-passwd 2.2-1
bash 3.0-14
bash-completion 20050721-1
bzip2 1.0.3-1
compface 1.5.2-1
coreutils 5.93-3
crypt 1.1-1
ctags 5.5-4
cvs 1.11.17-1
cvsutils 0.2.3-1
cygrunsrv 1.12-1
cygutils 1.2.9-1
cygwin 1.5.19-4
cygwin-doc 1.4-3
diffutils 2.8.7-1
ed 0.2-1
editrights 1.01-1
emacs 21.2-13
emacs-el 21.2-13
emacs-X11 21.2-13
expat 1.95.8-1
file 4.16-1
findutils 4.2.27-1
fontconfig 2.2.2-1
freetype2 2.1.9-1
gawk 3.1.5-2
gdbm 1.8.3-7
gettext 0.14.5-1
gmp 4.1.4-2
grep 2.5.1a-2
groff 1.18.1-2
gzip 1.3.5-1
inetutils 1.3.2-35
less 381-1
libbz2_1 1.0.3-1
libcharset1 1.9.2-2
libdb4.2 4.2.52-1
libdb4.3 4.3.28-1
libfontconfig1 2.2.2-1
libfreetype26 2.1.9-1
libgdbm 1.8.0-5
libgdbm-devel 1.8.3-7
libgdbm3 1.8.3-3
libgdbm4 1.8.3-7
libiconv 1.9.2-2
libiconv2 1.9.2-2
libintl 0.10.38-3
libintl1 0.10.40-1
libintl2 0.12.1-3
libintl3 0.14.5-1
libjpeg62 6b-11
libncurses5 5.2-1
libncurses6 5.2-8
libncurses7 5.3-4
libncurses8 5.4-4
libopenldap2_2_7 2.2.26-2
libpcre0 6.3-1
libpng12 1.2.8-2
libpopt0 1.6.4-4
libreadline4 4.1-2
libreadline5 4.3-5
libreadline6 5.1-2
libsasl2 2.1.19-3
libtiff4 3.6.0-5
libtiff5 3.7.3-1
libungif 4.1.4-1
libungif4 4.1.4-1
libXft 2.1.6-1
libXft1 1.0.0-1
libXft2 2.1.6-1
login 1.9-7
make 3.80-1
man 1.5p-1
minires 1.00-1
mktemp 1.5-3
ncftp 3.1.7-1
ncurses 5.4-4
openssh 4.3p1-1
openssl 0.9.8a-1
openssl097 0.9.7i-1
patch 2.5.8-8
patchutils 0.2.31-1
pcre 6.3-1
pcre-devel 6.3-1
pcre-doc 6.3-1
perl 5.8.7-5
perl-libwin32 0.26-1
postgresql 8.0.4-1
run 1.1.6-1
sed 4.1.4-1
tar 1.15.1-3
tcsh 6.14.00-5
termcap 20050421-1
terminfo 5.4_20041009-1
texinfo 4.8-1
time 1.7-1
unzip 5.50-5
vim 6.4-4
wget 1.10.2-1
which 1.7-1
whois 4.7.11-1
X-startup-scripts 1.0.11-1
Xaw3d 1.5D-5
xemacs 21.4.18-2
xemacs-sumo 2005-12-08-1
xorg-x11-base 6.8.2.0-1
xorg-x11-bin 6.8.2.0-1
xorg-x11-bin-dlls 6.8.2.0-1
xorg-x11-bin-lndir 6.8.2.0-1
xorg-x11-etc 6.8.2.0-1
xorg-x11-fenc 6.8.1.0-2
xorg-x11-fnts 6.8.1.0-3
xorg-x11-libs-data 6.8.2.0-1
xorg-x11-xwin 6.8.2.0-4
xterm 202-1
zip 2.3-6
zlib 1.2.3-1
Use -h to see help about each section
[-- Attachment #5: Type: text/plain, Size: 218 bytes --]
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: problems with exit codes on 64-bit Windows XP Pro x64
2006-02-06 22:40 problems with exit codes on 64-bit Windows XP Pro x64 Kevin Layer
@ 2006-02-06 23:56 ` Samuel Thibault
2006-02-07 2:31 ` Kevin Layer
0 siblings, 1 reply; 9+ messages in thread
From: Samuel Thibault @ 2006-02-06 23:56 UTC (permalink / raw)
To: cygwin
Hi,
Kevin Layer, le Mon 06 Feb 2006 14:37:00 -0800, a écrit :
Content-Description: bug.c
> /* demonstrate a bug in capturing the exit code from shell */
> main (int argc, char *argv[])
> {
> int docommand(char *), res;
>
> if (argc > 1) {
> res = docommand(argv[1]);
> printf("result = %d\n", res);
> } else {
> printf("no command!\n");
> }
> }
There is no "return res;" here, is that on purpose ?
Regards,
Samuel
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: problems with exit codes on 64-bit Windows XP Pro x64
2006-02-06 23:56 ` Samuel Thibault
@ 2006-02-07 2:31 ` Kevin Layer
0 siblings, 0 replies; 9+ messages in thread
From: Kevin Layer @ 2006-02-07 2:31 UTC (permalink / raw)
To: cygwin
Samuel Thibault <samuel.thibault@ens-lyon.org> wrote:
>> Hi,
>>
>> Kevin Layer, le Mon 06 Feb 2006 14:37:00 -0800, a écrit :
>> Content-Description: bug.c
>> > /* demonstrate a bug in capturing the exit code from shell */
>> > main (int argc, char *argv[])
>> > {
>> > int docommand(char *), res;
>> >
>> > if (argc > 1) {
>> > res = docommand(argv[1]);
>> > printf("result = %d\n", res);
>> > } else {
>> > printf("no command!\n");
>> > }
>> > }
>>
>> There is no "return res;" here, is that on purpose ?
No, but it's not relevant to the problem. (The main text of my message
wasn't sent until later, since something stripped it out.)
Kevin
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: problems with exit codes on 64-bit Windows XP Pro x64
2006-02-09 20:44 ` Kevin Layer
@ 2006-02-09 20:48 ` Christopher Faylor
0 siblings, 0 replies; 9+ messages in thread
From: Christopher Faylor @ 2006-02-09 20:48 UTC (permalink / raw)
To: cygwin
On Thu, Feb 09, 2006 at 12:32:56PM -0800, Kevin Layer wrote:
>Corinna Vinschen <corinna-cygwin@cygwin.com> wrote:
>
>>> > I just applied a patch which should return the correct error code.
>>>
>>> Ah, yes, I forgot: Please test the next snapshot from
>>> http://cygwin.com/snapshots/
>
>The problem is fixed. Thank you very much, Corinna.
>
>I'd like to second William's comments: cygwin and the cygwin
>development team rock!
In that case, I claim total credit, since I generated the snapshot.
Corinna just did the trivial step of checking in the fix.
cgf
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: problems with exit codes on 64-bit Windows XP Pro x64
2006-02-07 10:24 ` Corinna Vinschen
@ 2006-02-09 20:44 ` Kevin Layer
2006-02-09 20:48 ` Christopher Faylor
0 siblings, 1 reply; 9+ messages in thread
From: Kevin Layer @ 2006-02-09 20:44 UTC (permalink / raw)
To: cygwin
Corinna Vinschen <corinna-cygwin@cygwin.com> wrote:
>> > I just applied a patch which should return the correct error code.
>>
>> Ah, yes, I forgot: Please test the next snapshot from
>> http://cygwin.com/snapshots/
The problem is fixed. Thank you very much, Corinna.
I'd like to second William's comments: cygwin and the cygwin
development team rock!
Kevin
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: problems with exit codes on 64-bit Windows XP Pro x64
2006-02-07 10:16 ` Corinna Vinschen
2006-02-07 10:24 ` Corinna Vinschen
@ 2006-02-07 17:59 ` Kevin Layer
1 sibling, 0 replies; 9+ messages in thread
From: Kevin Layer @ 2006-02-07 17:59 UTC (permalink / raw)
To: cygwin
Corinna Vinschen <corinna-cygwin@cygwin.com> wrote:
>> On Feb 6 14:49, Kevin Layer wrote:
>> > I'm running the latest cygwin (1.5.19, see cygcheck below).
>> >
>> > My application is a native Windows app (64 and 32-bit). It includes
>> > no cygwin libraries and is not compiled with cygwin's gcc. When I
>> > execute cygwin programs from my app, however, the return value
>> > obtained from cygwin programs is always 0.
>> >
>> > More precisely, I spawn a particular cygwin program, say `make' or
>> > `sh', with CreateProcess(). When the program exits
>> > GetExitCodeProcess() always sets the exit status to 0, no matter what
>> > the real exit status was.
>>
>> I just applied a patch which should return the correct error code.
Thanks!
>> Thanks for the testcase, it's highly appreciated, though... it was
>> a lot of code for emulating cmd's "echo %errorlevel%" ;-)
Yeah. Originally, we thought it was a Microsoft bug... so we went the
extra mile.
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: problems with exit codes on 64-bit Windows XP Pro x64
2006-02-07 10:16 ` Corinna Vinschen
@ 2006-02-07 10:24 ` Corinna Vinschen
2006-02-09 20:44 ` Kevin Layer
2006-02-07 17:59 ` Kevin Layer
1 sibling, 1 reply; 9+ messages in thread
From: Corinna Vinschen @ 2006-02-07 10:24 UTC (permalink / raw)
To: cygwin
On Feb 7 11:01, Corinna Vinschen wrote:
> On Feb 6 14:49, Kevin Layer wrote:
> > I'm running the latest cygwin (1.5.19, see cygcheck below).
> >
> > My application is a native Windows app (64 and 32-bit). It includes
> > no cygwin libraries and is not compiled with cygwin's gcc. When I
> > execute cygwin programs from my app, however, the return value
> > obtained from cygwin programs is always 0.
> >
> > More precisely, I spawn a particular cygwin program, say `make' or
> > `sh', with CreateProcess(). When the program exits
> > GetExitCodeProcess() always sets the exit status to 0, no matter what
> > the real exit status was.
>
> I just applied a patch which should return the correct error code.
Ah, yes, I forgot: Please test the next snapshot from
http://cygwin.com/snapshots/
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: problems with exit codes on 64-bit Windows XP Pro x64
2006-02-06 22:52 Kevin Layer
@ 2006-02-07 10:16 ` Corinna Vinschen
2006-02-07 10:24 ` Corinna Vinschen
2006-02-07 17:59 ` Kevin Layer
0 siblings, 2 replies; 9+ messages in thread
From: Corinna Vinschen @ 2006-02-07 10:16 UTC (permalink / raw)
To: cygwin
On Feb 6 14:49, Kevin Layer wrote:
> I'm running the latest cygwin (1.5.19, see cygcheck below).
>
> My application is a native Windows app (64 and 32-bit). It includes
> no cygwin libraries and is not compiled with cygwin's gcc. When I
> execute cygwin programs from my app, however, the return value
> obtained from cygwin programs is always 0.
>
> More precisely, I spawn a particular cygwin program, say `make' or
> `sh', with CreateProcess(). When the program exits
> GetExitCodeProcess() always sets the exit status to 0, no matter what
> the real exit status was.
I just applied a patch which should return the correct error code.
Thanks for the testcase, it's highly appreciated, though... it was
a lot of code for emulating cmd's "echo %errorlevel%" ;-)
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: problems with exit codes on 64-bit Windows XP Pro x64
@ 2006-02-06 22:52 Kevin Layer
2006-02-07 10:16 ` Corinna Vinschen
0 siblings, 1 reply; 9+ messages in thread
From: Kevin Layer @ 2006-02-06 22:52 UTC (permalink / raw)
To: cygwin
[Interestingly, the text of my message was stripped out... here it is]
I'm running the latest cygwin (1.5.19, see cygcheck below).
My application is a native Windows app (64 and 32-bit). It includes
no cygwin libraries and is not compiled with cygwin's gcc. When I
execute cygwin programs from my app, however, the return value
obtained from cygwin programs is always 0.
More precisely, I spawn a particular cygwin program, say `make' or
`sh', with CreateProcess(). When the program exits
GetExitCodeProcess() always sets the exit status to 0, no matter what
the real exit status was.
Attached are 2 programs, exit1.c and bug.c. Compile with:
cl bug.c bufferoverflowu.lib
cl exit1.c bufferoverflowu.lib
[cl is MS C/C++ version 14, found in the SDK.]
Then, running on 64-bit windows:
./bug exit1
result = 0
Doing the experimentn on 32-bit Windows gets the output
result = 1
Below are the files.
Is this a known issue? Any chance of a fix?
--
Kevin Layer layer@Franz.COM http://www.franz.com/
Franz Inc., 555 12th St., Suite 1450, Oakland, CA 94607, USA
Phone: (510) 452-2000 FAX: (510) 452-0182
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^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2006-02-09 20:44 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-02-06 22:40 problems with exit codes on 64-bit Windows XP Pro x64 Kevin Layer
2006-02-06 23:56 ` Samuel Thibault
2006-02-07 2:31 ` Kevin Layer
2006-02-06 22:52 Kevin Layer
2006-02-07 10:16 ` Corinna Vinschen
2006-02-07 10:24 ` Corinna Vinschen
2006-02-09 20:44 ` Kevin Layer
2006-02-09 20:48 ` Christopher Faylor
2006-02-07 17:59 ` Kevin Layer
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