[issue3586] pwd.getpwnam('nobody') produces incorrect results if sizeof(uid_t) < sizeof(long)
Mark Dickinson
report at bugs.python.org
Mon Aug 18 12:22:44 CEST 2008
New submission from Mark Dickinson <dickinsm at gmail.com>:
On a 64-bit OS X build of Python, built with:
./configure --with-universal-archs=64-bit --enable-universalsdk=/ MACOSX_DEPLOYMENT_TARGET=10.5 &&
make
I get the following result:
Python 2.6b2+ (trunk:65805M, Aug 18 2008, 10:59:08)
[GCC 4.0.1 (Apple Inc. build 5484)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import pwd
>>> pwd.getpwnam('nobody')
pwd.struct_passwd(pw_name='nobody', pw_passwd='*', pw_uid=4294967294, pw_gid=4294967294,
pw_gecos='Unprivileged User', pw_dir='/var/empty', pw_shell='/usr/bin/false')
Here the pw_uid and pw_gid should presumably be -2, not 4294967294. I haven't had time to
investigate properly, but the problem is almost certainly something to do with the fact that
sizeof(uid_t) is 4 and sizeof(long) is 8 for this build. (Though interestingly, the configure
script detects sizeof(long) as 4, which may not be helping matters.)
This problem is causing test_httpservers to fail on 64-bit OS X.
System info: it's a MacBook Pro; uname -a gives:
Darwin Macintosh-3.local 9.4.0 Darwin Kernel Version 9.4.0: Mon Jun 9 19:30:53 PDT 2008; root:xnu-
1228.5.20~1/RELEASE_I386 i386
----------
components: Extension Modules
messages: 71318
nosy: marketdickinson
severity: normal
status: open
title: pwd.getpwnam('nobody') produces incorrect results if sizeof(uid_t) < sizeof(long)
versions: Python 2.6
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<http://bugs.python.org/issue3586>
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