Issue #7333: The `posix` module gains an `initgroups()` function providing

access to the initgroups(3) C library call on Unix systems which implement
it.  Patch by Jean-Paul Calderone.
This commit is contained in:
Antoine Pitrou 2009-12-02 20:37:54 +00:00
parent f2bf0d2a51
commit 30b3b35cba
7 changed files with 69 additions and 3 deletions

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@ -136,6 +136,15 @@ process and user.
Availability: Unix.
.. function:: initgroups(username, gid)
Call the system initgroups() to initialize the group access list with all of
the groups of which the specified username is a member, plus the specified
group id. Availability: Unix.
.. versionadded:: 2.7
.. function:: getlogin()
Return the name of the user logged in on the controlling terminal of the

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@ -5,6 +5,7 @@ from test import test_support
# Skip these tests if there is no posix module.
posix = test_support.import_module('posix')
import errno
import time
import os
import pwd
@ -83,6 +84,27 @@ class PosixTester(unittest.TestCase):
new_group_ids = (current_group_ids[0]+1, -1, -1)
self.assertRaises(OSError, posix.setresgid, *new_group_ids)
@unittest.skipUnless(hasattr(posix, 'initgroups'),
"test needs os.initgroups()")
def test_initgroups(self):
# It takes a string and an integer; check that it raises a TypeError
# for other argument lists.
self.assertRaises(TypeError, posix.initgroups)
self.assertRaises(TypeError, posix.initgroups, None)
self.assertRaises(TypeError, posix.initgroups, 3, "foo")
self.assertRaises(TypeError, posix.initgroups, "foo", 3, object())
# If a non-privileged user invokes it, it should fail with OSError
# EPERM.
if os.getuid() != 0:
name = pwd.getpwuid(posix.getuid()).pw_name
try:
posix.initgroups(name, 13)
except OSError as e:
self.assertEquals(e.errno, errno.EPERM)
else:
self.fail("Expected OSError to be raised by initgroups")
def test_statvfs(self):
if hasattr(posix, 'statvfs'):
self.assertTrue(posix.statvfs(os.curdir))

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@ -490,6 +490,10 @@ Core and Builtins
Library
-------
- Issue #7333: The `posix` module gains an `initgroups()` function providing
access to the initgroups(3) C library call on Unix systems which implement
it. Patch by Jean-Paul Calderone.
- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
ownership when the group is not forced, because the group may be different
from the user's group and inherit from its container when the test is run.

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@ -3861,6 +3861,30 @@ posix_getgroups(PyObject *self, PyObject *noargs)
}
#endif
#ifdef HAVE_INITGROUPS
PyDoc_STRVAR(posix_initgroups__doc__,
"initgroups(username, gid) -> None\n\n\
Call the system initgroups() to initialize the group access list with all of\n\
the groups of which the specified username is a member, plus the specified\n\
group id.");
static PyObject *
posix_initgroups(PyObject *self, PyObject *args)
{
char *username;
long gid;
if (!PyArg_ParseTuple(args, "sl:initgroups", &username, &gid))
return NULL;
if (initgroups(username, (gid_t) gid) == -1)
return PyErr_SetFromErrno(PyExc_OSError);
Py_INCREF(Py_None);
return Py_None;
}
#endif
#ifdef HAVE_GETPGID
PyDoc_STRVAR(posix_getpgid__doc__,
"getpgid(pid) -> pgid\n\n\
@ -8629,6 +8653,9 @@ static PyMethodDef posix_methods[] = {
#ifdef HAVE_SETGROUPS
{"setgroups", posix_setgroups, METH_O, posix_setgroups__doc__},
#endif /* HAVE_SETGROUPS */
#ifdef HAVE_INITGROUPS
{"initgroups", posix_initgroups, METH_VARARGS, posix_initgroups__doc__},
#endif /* HAVE_INITGROUPS */
#ifdef HAVE_GETPGID
{"getpgid", posix_getpgid, METH_VARARGS, posix_getpgid__doc__},
#endif /* HAVE_GETPGID */

5
configure vendored
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@ -1,5 +1,5 @@
#! /bin/sh
# From configure.in Revision: 76558 .
# From configure.in Revision: 76568 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.61 for python 2.7.
#
@ -17893,13 +17893,14 @@ echo "${ECHO_T}MACHDEP_OBJS" >&6; }
for ac_func in alarm setitimer getitimer bind_textdomain_codeset chown \
clock confstr ctermid execv fchmod fchown fork fpathconf ftime ftruncate \
gai_strerror getgroups getlogin getloadavg getpeername getpgid getpid \
getpriority getresuid getresgid getpwent getspnam getspent getsid getwd \
kill killpg lchmod lchown lstat mkfifo mknod mktime \
initgroups kill killpg lchmod lchown lstat mkfifo mknod mktime \
mremap nice pathconf pause plock poll pthread_init \
putenv readlink realpath \
select sem_open sem_timedwait sem_getvalue sem_unlink setegid seteuid \

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@ -2547,7 +2547,7 @@ AC_CHECK_FUNCS(alarm setitimer getitimer bind_textdomain_codeset chown \
clock confstr ctermid execv fchmod fchown fork fpathconf ftime ftruncate \
gai_strerror getgroups getlogin getloadavg getpeername getpgid getpid \
getpriority getresuid getresgid getpwent getspnam getspent getsid getwd \
kill killpg lchmod lchown lstat mkfifo mknod mktime \
initgroups kill killpg lchmod lchown lstat mkfifo mknod mktime \
mremap nice pathconf pause plock poll pthread_init \
putenv readlink realpath \
select sem_open sem_timedwait sem_getvalue sem_unlink setegid seteuid \

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@ -301,6 +301,9 @@
/* Define to 1 if you have the `getpeername' function. */
#undef HAVE_GETPEERNAME
/* Define to 1 if you have the `initgroups' function. */
#undef HAVE_INITGROUPS
/* Define to 1 if you have the `getpgid' function. */
#undef HAVE_GETPGID