Modules/pwdmodule.c

/***********************************************************
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
The Netherlands.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
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CNRI not be used in advertising or publicity pertaining to
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While CWI is the initial source for this software, a modified version
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STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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******************************************************************/

/* UNIX password file access module */

#include "Python.h"

#include <sys/types.h>
#include <pwd.h>

static PyObject *
mkpwent(p)
	struct passwd *p;
{
	return Py_BuildValue("(ssllsss)",
		       p->pw_name,
		       p->pw_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->pw_short_pad1, /* ugh-NeXT broke the padding */
		       (long)p->pw_short_pad2,
#else
		       (long)p->pw_uid,
		       (long)p->pw_gid,
#endif
		       p->pw_gecos,
		       p->pw_dir,
		       p->pw_shell);
}

static PyObject *
pwd_getpwuid(self, args)
	PyObject *self;
	PyObject *args;
{
	int uid;
	struct passwd *p;
	if (!PyArg_Parse(args, "i", &uid))
		return NULL;
	if ((p = getpwuid(uid)) == NULL) {
		PyErr_SetString(PyExc_KeyError, "getpwuid(): uid not found");
		return NULL;
	}
	return mkpwent(p);
}

static PyObject *
pwd_getpwnam(self, args)
	PyObject *self;
	PyObject *args;
{
	char *name;
	struct passwd *p;
	if (!PyArg_Parse(args, "s", &name))
		return NULL;
	if ((p = getpwnam(name)) == NULL) {
		PyErr_SetString(PyExc_KeyError, "getpwnam(): name not found");
		return NULL;
	}
	return mkpwent(p);
}

static PyObject *
pwd_getpwall(self, args)
	PyObject *self;
	PyObject *args;
{
	PyObject *d;
	struct passwd *p;
	if (!PyArg_NoArgs(args))
		return NULL;
	if ((d = PyList_New(0)) == NULL)
		return NULL;
	setpwent();
	while ((p = getpwent()) != NULL) {
		PyObject *v = mkpwent(p);
		if (v == NULL || PyList_Append(d, v) != 0) {
			Py_XDECREF(v);
			Py_DECREF(d);
			return NULL;
		}
	}
	return d;
}

static PyMethodDef pwd_methods[] = {
	{"getpwuid",	pwd_getpwuid},
	{"getpwnam",	pwd_getpwnam},
	{"getpwall",	pwd_getpwall},
	{NULL,		NULL}		/* sentinel */
};

void
initpwd()
{
	Py_InitModule("pwd", pwd_methods);
}