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1.3.22: child real uid gets parent's effective uid
- From: "Snively, John P (John)" <eeyore at lucent dot com>
- To: "'cygwin at cygwin dot com'" <cygwin at cygwin dot com>
- Date: Fri, 6 Jun 2003 16:20:43 -0400
- Subject: 1.3.22: child real uid gets parent's effective uid
I changed the effective uid of my app's process using seteuid, and printed
out the real and effective uid's obtained via getuid and geteuid. No
surprises, until I tested running a child process via system() and printing
ITS real and effective uid's. The effective AND real uid of the child are
set to the effective uid of the parent -- ouch:
before changing euid:
child: euid: 25313 ruid: 25313
parent: euid: 25313 ruid: 25313
setting euid to 500
child: euid: 500 ruid: 500
parent: euid: 500 ruid: 25313
Any way around this?
John Snively
Lucent / Bell Labs
cygcheck output:
Cygwin Win95/NT Configuration Diagnostics
Current System Time: Fri Jun 06 15:48:51 2003
Windows 2000 Professional Ver 5.0 Build 2195 Service Pack 3
Path: C:\cygwin\home\eeyore\bin
C:\cygwin\home\eeyore\v6.1\bin
C:\cygwin\usr\local\CSSC\libexec\cssc
C:\cygwin\usr\local\bin
C:\cygwin\bin
C:\cygwin\bin
c:\Perl\bin\
c:\texmf\miktex\bin
c:\WINNT\system32
c:\WINNT
c:\WINNT\System32\Wbem
c:\AMTAGENT
c:\Program Files\Rational\Rose RealTime\bin\win32
"C
C:\cygwin\Program Files\Hummingbird\Connectivity\7.00\Accessories\"
c:\Program Files\Microsoft SQL Server\80\Tools\BINN
C:\cygwin\bin
C:\cygwin\usr\X11R6\bin
C:\cygwin\bin\id.exe output (nontsec)
UID: 25313(eeyore) GID: 10513(mkgroup_l_d)
544(Administrators) 545(Users)
10513(mkgroup_l_d)
C:\cygwin\bin\id.exe output (ntsec)
UID: 25313(eeyore) GID: 10513(mkgroup_l_d)
544(Administrators) 545(Users)
10513(mkgroup_l_d)
SysDir: C:\WINNT\System32
WinDir: C:\WINNT
CYGWIN = `tty ntsec'
HOME = `C:\cygwin\home\eeyore'
MAKEFLAGS = `-I /home/eeyore/v6.1/src/makehead'
MAKE_MODE = `unix'
USER = `eeyore'
ALLUSERSPROFILE = `C:\Documents and Settings\All Users'
APPDATA = `C:\Documents and Settings\eeyore\Application Data'
CATALINA_HOME = `c:\jakarta-tomcat-4.1.24-LE-jdk14'
COMMONPROGRAMFILES = `C:\Program Files\Common Files'
COMPUTERNAME = `EEYORE-1'
COMSPEC = `C:\WINNT\system32\cmd.exe'
CVS_RSH = `/bin/ssh'
HOMEDRIVE = `C:'
HOMEPATH = `\'
HOSTNAME = `eeyore-1'
JAVA_HOME = `c:\j2sdk1.4.1_02'
LOGONSERVER = `\\NA05NJ7460DC02'
LS_COLORS =
`no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:ex=
01;33:*~=05;31:*.mtxt=05;31:*.ndx=05;31:*.cmd=01;32:*.exe=01;32:*.com=01;32:
*.btm=01;32:*.bat=01;32:*.c=01;36:*.h=01;36:*.pl=01;36:*.pm=01;36:*.cgi=01;3
6:*.java=01;36:*.html=01;36:*.tar=01;31:*.tgz=01;31:*.gz=01;31:*.tgz=01;31:*
.bz2=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;
31:*.gz=01;31:*.jpg=01;35:*.jpeg=01;35:*.JPG=01;35:*.gif=01;35:*.GIF=01;35:*
.bmp=01;35:*.BMP=01;35:*.xbm=01;35:*.ppm=01;35:*.xpm=01;35:*.tif=01;35:'
MANPATH = `:/usr/ssl/man'
NUMBER_OF_PROCESSORS = `1'
OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
OS = `Windows_NT'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
PROCESSOR_ARCHITECTURE = `x86'
PROCESSOR_IDENTIFIER = `x86 Family 6 Model 11 Stepping 1, GenuineIntel'
PROCESSOR_LEVEL = `6'
PROCESSOR_REVISION = `0b01'
PROGRAMFILES = `C:\Program Files'
PROMPT = `$P$G'
PS1 = `eeyore-1> '
SMS_LOCAL_DIR = `C:\WINNT'
SRCROOT = `/home/eeyore/v6.1'
SYSTEMDRIVE = `C:'
SYSTEMROOT = `C:\WINNT'
TEMP = `c:\DOCUME~1\eeyore\LOCALS~1\Temp'
TERM = `cygwin'
TMP = `c:\DOCUME~1\eeyore\LOCALS~1\Temp'
USERDOMAIN = `NA05'
USERNAME = `eeyore'
USERPROFILE = `C:\Documents and Settings\eeyore'
WINDIR = `C:\WINNT'
_ = `/usr/bin/cygcheck'
HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
(default) = `/cygdrive'
cygdrive flags = 0x00000022
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
(default) = `C:\cygwin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/rdocs
(default) = `\\richb-1\pub'
flags = 0x0000010a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = `C:\cygwin/bin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = `C:\cygwin/lib'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts
v2\/usr/X11R6/lib/X11/fonts
(default) = `C:\cygwin\usr\X11R6\lib\X11\fonts'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options
c: hd NTFS 22886Mb 44% CP CS UN PA FC
d: hd N/A N/A
e: cd CDFS 0Mb -2147483548% CS Audio CD
C:\cygwin / system binmode
\\richb-1\pub /rdocs system binmode
C:\cygwin/bin /usr/bin system binmode
C:\cygwin/lib /usr/lib system binmode
C:\cygwin\usr\X11R6\lib\X11\fonts /usr/X11R6/lib/X11/fonts system binmode
. /cygdrive system
binmode,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
Found: C:\cygwin\bin\cpp.exe
Found: C:\cygwin\bin\find.exe
Found: C:\cygwin\bin\gcc.exe
Found: C:\cygwin\bin\gdb.exe
Found: C:\cygwin\bin\grep.exe
Found: C:\cygwin\bin\ld.exe
Found: C:\cygwin\bin\ls.exe
Found: C:\cygwin\bin\make.exe
Found: C:\cygwin\bin\mv.exe
Found: C:\cygwin\bin\rm.exe
Found: C:\cygwin\bin\sed.exe
Found: C:\cygwin\bin\sh.exe
Found: C:\cygwin\bin\tar.exe
58k 2002/05/07 C:\cygwin\bin\cygbz2-1.dll - os=4.0 img=1.0 sys=4.0
"cygbz2-1.dll" v0.0 ts=2002/5/7 2:33
848k 2003/04/11 C:\cygwin\bin\cygcrypto-0.9.7.dll - os=4.0 img=1.0 sys=4.0
"cygcrypto-0.9.7.dll" v0.0 ts=2003/4/11 6:33
645k 2003/04/11 C:\cygwin\bin\cygcrypto.dll - os=4.0 img=1.0 sys=4.0
"cygcrypto.dll" v0.0 ts=2003/4/11 6:37
380k 2002/07/24 C:\cygwin\bin\cygdb-3.1.dll - os=4.0 img=1.0 sys=4.0
"cygdb-3.1.dll" v0.0 ts=2002/7/24 12:24
487k 2002/07/24 C:\cygwin\bin\cygdb_cxx-3.1.dll - os=4.0 img=1.0 sys=4.0
"cygdb_cxx-3.1.dll" v0.0 ts=2002/7/24 12:25
45k 2001/04/25 C:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
"cygform5.dll" v0.0 ts=2001/4/25 1:28
35k 2002/01/09 C:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
"cygform6.dll" v0.0 ts=2002/1/9 1:03
76k 2003/03/09 C:\cygwin\bin\cygform7.dll - os=4.0 img=1.0 sys=4.0
"cygform7.dll" v0.0 ts=2003/3/9 15:51
28k 2003/03/22 C:\cygwin\bin\cyggdbm-3.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm-3.dll" v0.0 ts=2003/3/22 17:19
19k 2003/03/22 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2002/2/19 22:05
15k 2003/03/22 C:\cygwin\bin\cyggdbm_compat-3.dll - os=4.0 img=1.0
sys=4.0
"cyggdbm_compat-3.dll" v0.0 ts=2003/3/22 17:22
17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2001/1/6 23:34
20k 2002/10/10 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
"cyghistory5.dll" v0.0 ts=2002/10/10 13:28
929k 2002/06/24 C:\cygwin\bin\cygiconv-2.dll - os=4.0 img=1.0 sys=4.0
"cygiconv-2.dll" v0.0 ts=2002/6/24 14:24
22k 2001/12/13 C:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
"cygintl-1.dll" v0.0 ts=2001/12/13 4:28
28k 2002/09/20 C:\cygwin\bin\cygintl-2.dll - os=4.0 img=1.0 sys=4.0
"cygintl-2.dll" v0.0 ts=2002/9/19 23:13
21k 2001/06/20 C:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
"cygintl.dll" v0.0 ts=2001/6/20 13:09
119k 2002/02/09 C:\cygwin\bin\cygjpeg6b.dll - os=4.0 img=1.0 sys=4.0
"cygjpeg6b.dll" v0.0 ts=2002/2/9 0:19
26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
"cygmenu5.dll" v0.0 ts=2001/4/25 1:27
20k 2002/01/09 C:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
"cygmenu6.dll" v0.0 ts=2002/1/9 1:03
48k 2003/03/09 C:\cygwin\bin\cygmenu7.dll - os=4.0 img=1.0 sys=4.0
"cygmenu7.dll" v0.0 ts=2003/3/9 15:51
156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++5.dll" v0.0 ts=2001/4/25 1:29
175k 2002/01/09 C:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++6.dll" v0.0 ts=2002/1/9 1:03
226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses5.dll" v0.0 ts=2001/4/25 1:17
202k 2002/01/09 C:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses6.dll" v0.0 ts=2002/1/9 1:03
284k 2003/03/09 C:\cygwin\bin\cygncurses7.dll - os=4.0 img=1.0 sys=4.0
"cygncurses7.dll" v0.0 ts=2003/3/9 15:50
15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
"cygpanel5.dll" v0.0 ts=2001/4/25 1:27
12k 2002/01/09 C:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
"cygpanel6.dll" v0.0 ts=2002/1/9 1:03
31k 2003/03/09 C:\cygwin\bin\cygpanel7.dll - os=4.0 img=1.0 sys=4.0
"cygpanel7.dll" v0.0 ts=2003/3/9 15:50
63k 2003/04/11 C:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
"cygpcre.dll" v0.0 ts=2003/4/11 4:31
61k 2003/04/11 C:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix.dll" v0.0 ts=2003/4/11 4:31
1005k 2003/03/30 C:\cygwin\bin\cygperl5_8_0.dll - os=4.0 img=1.0 sys=4.0
"cygperl5_8_0.dll" v0.0 ts=2003/3/30 10:39
173k 2003/02/23 C:\cygwin\bin\cygpng12.dll - os=4.0 img=1.0 sys=4.0
"cygpng12.dll" v0.0 ts=2003/2/23 17:02
22k 2002/06/09 C:\cygwin\bin\cygpopt-0.dll - os=4.0 img=1.0 sys=4.0
"cygpopt-0.dll" v0.0 ts=2002/6/9 1:45
108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2001/1/6 23:34
127k 2002/10/10 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
"cygreadline5.dll" v0.0 ts=2002/10/10 13:28
176k 2003/04/11 C:\cygwin\bin\cygssl-0.9.7.dll - os=4.0 img=1.0 sys=4.0
"cygssl-0.9.7.dll" v0.0 ts=2003/4/11 6:33
165k 2003/04/11 C:\cygwin\bin\cygssl.dll - os=4.0 img=1.0 sys=4.0
"cygssl.dll" v0.0 ts=2003/4/11 6:37
281k 2003/02/24 C:\cygwin\bin\cygtiff3.dll - os=4.0 img=1.0 sys=4.0
"cygtiff3.dll" v0.0 ts=2003/2/23 23:58
50k 2002/03/12 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2002/3/11 23:38
948k 2003/03/18 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2003/3/18 9:20
Cygwin DLL version info:
DLL version: 1.3.22
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 78
Shared data: 3
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: Tue Mar 18 09:20:11 EST 2003
CVS tag: dontuse-21
Shared id: cygwin1S3
Cygwin Package Information
Last downloaded files to: C:\Documents and Settings\eeyore\My
Documents\Src\Cygwin
Last downloaded files from: http://mirror.mcs.anl.gov/cygwin
Package Version
_update-info-dir 00164-1
ash 20020731-1
base-files 1.3-1
base-passwd 1.1-1
bash 2.05b-9
binutils 20030307-1
bison 20030307-1
bzip2 1.0.2-2
chkconfig 1.2.24h-1
ctags 5.5-3
cygrunsrv 0.96-1
cygutils 1.1.3-1
cygwin 1.3.22-1
cygwin-doc 1.3-4
diffutils 2.8.1-1
emacs 21.2-12
emacs-X11 21.2-12
fileutils 4.1-1
findutils 4.1.7-4
flex 2.5.4-2
gawk 3.1.2-2
gcc 3.2-3
gcc-mingw 20020817-5
gdb 20030303-1
gdbm 1.8.0-5
gettext 0.11.5-1
grep 2.5-1
groff 1.18.1-2
gzip 1.3.3-4
inetutils 1.3.2-22
initscripts 0.9-1
jpeg 6b-7
less 378-1
libbz2_1 1.0.2-2
libdb3.1 3.1.17-2
libgdbm 1.8.0-5
libgdbm-devel 1.8.0-5
libgdbm3 1.8.3-1
libiconv2 1.8-2
libintl 0.10.38-3
libintl1 0.10.40-1
libintl2 0.11.5-1
libncurses-devel 5.3-1
libncurses5 5.2-1
libncurses6 5.2-8
libncurses7 5.3-1
libpng12 1.2.5-1
libpopt0 1.6.4-4
libreadline4 4.1-2
libreadline5 4.3-2
login 1.8-1
m4 1.4-1
make 3.79.1-7
man 1.5j-2
mingw-runtime 3.0-1
mktemp 1.4-1
mutt 1.4-1
ncurses 5.3-1
newlib-man 20020801
openssl 0.9.7b-1
openssl096 0.9.6j-1
pcre 4.1-1
pdksh 5.2.14-2
perl 5.8.0-2
readline 4.3-2
sed 4.0.7-1
sh-utils 2.0.15-3
sharutils 4.2.1-2
ssmtp 2.38.7-3
sysvinit 2.84-3
tar 1.13.25-1
tcltk 20030214-1
termcap 20020930-1
terminfo 5.3-2
texinfo 4.2-4
textutils 2.0.21-1
tiff 3.6.0-1
vim 6.1.300-1
w32api 2.3-1
which 1.5-1
XFree86-base 4.2.0-1
XFree86-bin 4.2.0-3
XFree86-etc 4.2.0-1
XFree86-fenc 4.2.0-2
XFree86-fnts 4.2.0-2
XFree86-lib 4.2.0-5
XFree86-startup-scripts 4.2.0-4
XFree86-xserv 4.2.0-37
xinetd 2.3.9-1
zlib 1.1.4-1
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