mirror of https://github.com/python/cpython.git
139 lines
3.8 KiB
C
139 lines
3.8 KiB
C
/***********************************************************
|
|
Copyright (c) 2000, BeOpen.com.
|
|
Copyright (c) 1995-2000, Corporation for National Research Initiatives.
|
|
Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
|
|
All rights reserved.
|
|
|
|
See the file "Misc/COPYRIGHT" for information on usage and
|
|
redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
|
******************************************************************/
|
|
|
|
/* UNIX group file access module */
|
|
|
|
#include "Python.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <grp.h>
|
|
|
|
|
|
static PyObject *
|
|
mkgrent(struct group *p)
|
|
{
|
|
PyObject *v, *w;
|
|
char **member;
|
|
if ((w = PyList_New(0)) == NULL) {
|
|
return NULL;
|
|
}
|
|
for (member = p->gr_mem; *member != NULL; member++) {
|
|
PyObject *x = PyString_FromString(*member);
|
|
if (x == NULL || PyList_Append(w, x) != 0) {
|
|
Py_XDECREF(x);
|
|
Py_DECREF(w);
|
|
return NULL;
|
|
}
|
|
Py_DECREF(x);
|
|
}
|
|
v = Py_BuildValue("(sslO)",
|
|
p->gr_name,
|
|
p->gr_passwd,
|
|
#if defined(NeXT) && defined(_POSIX_SOURCE) && defined(__LITTLE_ENDIAN__)
|
|
/* Correct a bug present on Intel machines in NextStep 3.2 and 3.3;
|
|
for later versions you may have to remove this */
|
|
(long)p->gr_short_pad, /* ugh-NeXT broke the padding */
|
|
#else
|
|
(long)p->gr_gid,
|
|
#endif
|
|
w);
|
|
Py_DECREF(w);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
grp_getgrgid(PyObject *self, PyObject *args)
|
|
{
|
|
int gid;
|
|
struct group *p;
|
|
if (!PyArg_ParseTuple(args, "i:getgrgid", &gid))
|
|
return NULL;
|
|
if ((p = getgrgid(gid)) == NULL) {
|
|
PyErr_SetString(PyExc_KeyError, "getgrgid(): gid not found");
|
|
return NULL;
|
|
}
|
|
return mkgrent(p);
|
|
}
|
|
|
|
static PyObject *
|
|
grp_getgrnam(PyObject *self, PyObject *args)
|
|
{
|
|
char *name;
|
|
struct group *p;
|
|
if (!PyArg_ParseTuple(args, "s:getgrnam", &name))
|
|
return NULL;
|
|
if ((p = getgrnam(name)) == NULL) {
|
|
PyErr_SetString(PyExc_KeyError, "getgrnam(): name not found");
|
|
return NULL;
|
|
}
|
|
return mkgrent(p);
|
|
}
|
|
|
|
static PyObject *
|
|
grp_getgrall(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *d;
|
|
struct group *p;
|
|
|
|
if (!PyArg_ParseTuple(args, ":getgrall"))
|
|
return NULL;
|
|
if ((d = PyList_New(0)) == NULL)
|
|
return NULL;
|
|
setgrent();
|
|
while ((p = getgrent()) != NULL) {
|
|
PyObject *v = mkgrent(p);
|
|
if (v == NULL || PyList_Append(d, v) != 0) {
|
|
Py_XDECREF(v);
|
|
Py_DECREF(d);
|
|
return NULL;
|
|
}
|
|
Py_DECREF(v);
|
|
}
|
|
return d;
|
|
}
|
|
|
|
static PyMethodDef grp_methods[] = {
|
|
{"getgrgid", grp_getgrgid, METH_VARARGS,
|
|
"getgrgid(id) -> tuple\n\
|
|
Return the group database entry for the given numeric group ID. If\n\
|
|
id is not valid, raise KeyError."},
|
|
{"getgrnam", grp_getgrnam, METH_VARARGS,
|
|
"getgrnam(name) -> tuple\n\
|
|
Return the group database entry for the given group name. If\n\
|
|
name is not valid, raise KeyError."},
|
|
{"getgrall", grp_getgrall, METH_VARARGS,
|
|
"getgrall() -> list of tuples\n\
|
|
Return a list of all available group entries, in arbitrary order."},
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
static char grp__doc__[] =
|
|
"Access to the Unix group database.\n\
|
|
\n\
|
|
Group entries are reported as 4-tuples containing the following fields\n\
|
|
from the group database, in order:\n\
|
|
\n\
|
|
name - name of the group\n\
|
|
passwd - group password (encrypted); often empty\n\
|
|
gid - numeric ID of the group\n\
|
|
mem - list of members\n\
|
|
\n\
|
|
The gid is an integer, name and password are strings. (Note that most\n\
|
|
users are not explicitly listed as members of the groups they are in\n\
|
|
according to the password database. Check both databases to get\n\
|
|
complete membership information.)";
|
|
|
|
|
|
DL_EXPORT(void)
|
|
initgrp(void)
|
|
{
|
|
Py_InitModule3("grp", grp_methods, grp__doc__);
|
|
}
|