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Name	Size	Permission	Date
_blake2	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
_ctypes	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
_decimal	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
_io	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
_multiprocessing	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
_sha3	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
_sqlite	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
_ssl	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
_xxtestfuzz	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
cjkcodecs	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
clinic	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
expat	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
README	112 B	-rw-r--r--	2024-03-19 22:46
Setup	15.15 KB	-rw-r--r--	2024-03-19 22:46
Setup.local	41 B	-rw-r--r--	2025-06-04 09:17
_abc.c	26.09 KB	-rw-r--r--	2024-03-19 22:46
_abc.gcda	8.21 KB	-rw-r--r--	2025-06-04 09:21
_abc.o	228.27 KB	-rw-r--r--	2025-06-04 09:22
_asynciomodule.c	88.39 KB	-rw-r--r--	2024-03-19 22:46
_bisectmodule.c	8.03 KB	-rw-r--r--	2024-03-19 22:46
_bz2module.c	23.65 KB	-rw-r--r--	2024-03-19 22:46
_codecsmodule.c	32.8 KB	-rw-r--r--	2024-03-19 22:46
_codecsmodule.gcda	13.72 KB	-rw-r--r--	2025-06-04 09:21
_codecsmodule.o	374.94 KB	-rw-r--r--	2025-06-04 09:22
_collectionsmodule.c	79.83 KB	-rw-r--r--	2024-03-19 22:46
_collectionsmodule.gcda	14.42 KB	-rw-r--r--	2025-06-04 09:21
_collectionsmodule.o	325.15 KB	-rw-r--r--	2025-06-04 09:22
_contextvarsmodule.c	1.57 KB	-rw-r--r--	2024-03-19 22:46
_cryptmodule.c	1.66 KB	-rw-r--r--	2024-03-19 22:46
_csv.c	50.09 KB	-rw-r--r--	2024-03-19 22:46
_curses_panel.c	18.6 KB	-rw-r--r--	2024-03-19 22:46
_cursesmodule.c	135.6 KB	-rw-r--r--	2024-03-19 22:46
_datetimemodule.c	219.13 KB	-rw-r--r--	2024-03-19 22:46
_dbmmodule.c	14.9 KB	-rw-r--r--	2024-03-19 22:46
_elementtree.c	124.95 KB	-rw-r--r--	2024-03-19 22:46
_functoolsmodule.c	45.07 KB	-rw-r--r--	2024-03-19 22:46
_functoolsmodule.gcda	11.74 KB	-rw-r--r--	2025-06-04 09:21
_functoolsmodule.o	268.69 KB	-rw-r--r--	2025-06-04 09:22
_gdbmmodule.c	21.25 KB	-rw-r--r--	2024-03-19 22:46
_hashopenssl.c	59.7 KB	-rw-r--r--	2024-03-19 22:46
_heapqmodule.c	21.78 KB	-rw-r--r--	2024-03-19 22:46
_iomodule.gcda	6.99 KB	-rw-r--r--	2025-06-04 09:21
_iomodule.o	186.38 KB	-rw-r--r--	2025-06-04 09:22
_json.c	57.57 KB	-rw-r--r--	2024-03-19 22:46
_localemodule.c	22.29 KB	-rw-r--r--	2024-03-19 22:46
_localemodule.gcda	8.57 KB	-rw-r--r--	2025-06-04 09:21
_localemodule.o	181.06 KB	-rw-r--r--	2025-06-04 09:22
_lsprof.c	25.89 KB	-rw-r--r--	2024-03-19 22:46
_lzmamodule.c	48.65 KB	-rw-r--r--	2024-03-19 22:46
_math.c	7.33 KB	-rw-r--r--	2024-03-19 22:46
_math.gcda	2.29 KB	-rw-r--r--	2025-06-04 09:21
_math.h	1007 B	-rw-r--r--	2024-03-19 22:46
_math.o	32.3 KB	-rw-r--r--	2025-06-04 09:22
_opcode.c	2.14 KB	-rw-r--r--	2024-03-19 22:46
_operator.c	46.15 KB	-rw-r--r--	2024-03-19 22:46
_operator.gcda	13.14 KB	-rw-r--r--	2025-06-04 09:21
_operator.o	333.74 KB	-rw-r--r--	2025-06-04 09:22
_pickle.c	229.53 KB	-rw-r--r--	2024-03-19 22:46
_posixsubprocess.c	36.98 KB	-rw-r--r--	2024-03-19 22:46
_queuemodule.c	12.31 KB	-rw-r--r--	2024-03-19 22:46
_randommodule.c	17.76 KB	-rw-r--r--	2024-03-19 22:46
_scproxy.c	6.08 KB	-rw-r--r--	2024-03-19 22:46
_sre.c	79.74 KB	-rw-r--r--	2024-03-19 22:46
_sre.gcda	34.64 KB	-rw-r--r--	2025-06-04 09:21
_sre.o	975.16 KB	-rw-r--r--	2025-06-04 09:22
_ssl.c	186.63 KB	-rw-r--r--	2024-03-19 22:46
_ssl.h	2.08 KB	-rw-r--r--	2024-03-19 22:46
_ssl_data.h	203.14 KB	-rw-r--r--	2024-03-19 22:46
_ssl_data_111.h	208.74 KB	-rw-r--r--	2024-03-19 22:46
_ssl_data_300.h	275.25 KB	-rw-r--r--	2024-03-19 22:46
_stat.c	15.18 KB	-rw-r--r--	2024-03-19 22:46
_stat.gcda	5.7 KB	-rw-r--r--	2025-06-04 09:21
_stat.o	69.77 KB	-rw-r--r--	2025-06-04 09:22
_statisticsmodule.c	4.83 KB	-rw-r--r--	2024-03-19 22:46
_struct.c	68.85 KB	-rw-r--r--	2024-03-19 22:46
_testbuffer.c	82.19 KB	-rw-r--r--	2024-03-19 22:46
_testcapimodule.c	217.47 KB	-rw-r--r--	2024-03-19 22:46
_testclinic.c	22.92 KB	-rw-r--r--	2024-03-19 22:46
_testimportmultiple.c	1.1 KB	-rw-r--r--	2024-03-19 22:46
_testinternalcapi.c	10.76 KB	-rw-r--r--	2024-03-19 22:46
_testmultiphase.c	23.38 KB	-rw-r--r--	2024-03-19 22:46
_threadmodule.c	50.27 KB	-rw-r--r--	2024-03-19 22:46
_threadmodule.gcda	10.46 KB	-rw-r--r--	2025-06-04 09:21
_threadmodule.o	250.8 KB	-rw-r--r--	2025-06-04 09:22
_tkinter.c	93.36 KB	-rw-r--r--	2024-03-19 22:46
_tracemalloc.c	44.86 KB	-rw-r--r--	2024-03-19 22:46
_tracemalloc.gcda	12.51 KB	-rw-r--r--	2025-06-04 09:21
_tracemalloc.o	262.77 KB	-rw-r--r--	2025-06-04 09:22
_uuidmodule.c	3 KB	-rw-r--r--	2024-03-19 22:46
_weakref.c	4.92 KB	-rw-r--r--	2024-03-19 22:46
_weakref.gcda	4.24 KB	-rw-r--r--	2025-06-04 09:21
_weakref.o	84.91 KB	-rw-r--r--	2025-06-04 09:22
_winapi.c	66.78 KB	-rw-r--r--	2024-03-19 22:46
_xxsubinterpretersmodule.c	67.74 KB	-rw-r--r--	2024-03-19 22:46
_zoneinfo.c	73.89 KB	-rw-r--r--	2024-03-19 22:46
addrinfo.h	5.88 KB	-rw-r--r--	2024-03-19 22:46
arraymodule.c	87.46 KB	-rw-r--r--	2024-03-19 22:46
atexitmodule.c	7.29 KB	-rw-r--r--	2024-03-19 22:46
atexitmodule.gcda	4.45 KB	-rw-r--r--	2025-06-04 09:21
atexitmodule.o	97.11 KB	-rw-r--r--	2025-06-04 09:22
audioop.c	59.71 KB	-rw-r--r--	2024-03-19 22:46
binascii.c	54.76 KB	-rw-r--r--	2024-03-19 22:46
bufferedio.gcda	20.46 KB	-rw-r--r--	2025-06-04 09:21
bufferedio.o	414.2 KB	-rw-r--r--	2025-06-04 09:22
bytesio.gcda	10.84 KB	-rw-r--r--	2025-06-04 09:21
bytesio.o	220.71 KB	-rw-r--r--	2025-06-04 09:22
cmathmodule.c	42.3 KB	-rw-r--r--	2024-03-19 22:46
config.c	3.21 KB	-rw-r--r--	2025-06-04 09:17
config.c.in	1.58 KB	-rw-r--r--	2024-03-19 22:46
config.o	34.5 KB	-rw-r--r--	2025-06-04 09:22
errnomodule.c	27.08 KB	-rw-r--r--	2024-03-19 22:46
errnomodule.gcda	8.02 KB	-rw-r--r--	2025-06-04 09:21
errnomodule.o	113.31 KB	-rw-r--r--	2025-06-04 09:22
faulthandler.c	40.52 KB	-rw-r--r--	2024-03-19 22:46
faulthandler.gcda	9.1 KB	-rw-r--r--	2025-06-04 09:21
faulthandler.o	147.28 KB	-rw-r--r--	2025-06-04 09:22
fcntlmodule.c	20.49 KB	-rw-r--r--	2024-03-19 22:46
fileio.gcda	9.01 KB	-rw-r--r--	2025-06-04 09:21
fileio.o	227.98 KB	-rw-r--r--	2025-06-04 09:22
gc_weakref.txt	11.19 KB	-rw-r--r--	2024-03-19 22:46
gcmodule.c	77.27 KB	-rw-r--r--	2024-03-19 22:46
gcmodule.gcda	11.63 KB	-rw-r--r--	2025-06-04 09:21
gcmodule.o	306.44 KB	-rw-r--r--	2025-06-04 09:22
getaddrinfo.c	18.38 KB	-rw-r--r--	2024-03-19 22:46
getbuildinfo.c	1.28 KB	-rw-r--r--	2024-03-19 22:46
getbuildinfo.gcda	3.59 KB	-rw-r--r--	2025-06-04 09:21
getbuildinfo.o	33.84 KB	-rw-r--r--	2025-06-04 09:22
getnameinfo.c	6.18 KB	-rw-r--r--	2024-03-19 22:46
getpath.c	44.99 KB	-rw-r--r--	2024-03-19 22:46
getpath.gcda	8.82 KB	-rw-r--r--	2025-06-04 09:21
getpath.o	160.52 KB	-rw-r--r--	2025-06-04 09:22
grpmodule.c	8.52 KB	-rw-r--r--	2024-03-19 22:46
hashlib.h	2.09 KB	-rw-r--r--	2024-03-19 22:46
iobase.gcda	9.63 KB	-rw-r--r--	2025-06-04 09:21
iobase.o	189.36 KB	-rw-r--r--	2025-06-04 09:22
itertoolsmodule.c	153.67 KB	-rw-r--r--	2024-03-19 22:46
itertoolsmodule.gcda	27.9 KB	-rw-r--r--	2025-06-04 09:21
itertoolsmodule.o	721.27 KB	-rw-r--r--	2025-06-04 09:22
ld_so_aix	6.12 KB	-rwxr-xr-x	2025-06-04 09:17
ld_so_aix.in	6.11 KB	-rw-r--r--	2024-03-19 22:46
main.c	17.65 KB	-rw-r--r--	2024-03-19 22:46
main.gcda	7.28 KB	-rw-r--r--	2025-06-04 09:21
main.o	147.24 KB	-rw-r--r--	2025-06-04 09:22
makesetup	7.67 KB	-rwxr-xr-x	2024-03-19 22:46
makexp_aix	2.67 KB	-rwxr-xr-x	2024-03-19 22:46
mathmodule.c	106.2 KB	-rw-r--r--	2024-03-19 22:46
md5module.c	15.51 KB	-rw-r--r--	2024-03-19 22:46
mmapmodule.c	47.75 KB	-rw-r--r--	2024-03-19 22:46
nismodule.c	12.89 KB	-rw-r--r--	2024-03-19 22:46
ossaudiodev.c	37.49 KB	-rw-r--r--	2024-03-19 22:46
overlapped.c	53.65 KB	-rw-r--r--	2024-03-19 22:46
posixmodule.c	413.46 KB	-rw-r--r--	2024-03-19 22:46
posixmodule.gcda	67.8 KB	-rw-r--r--	2025-06-04 09:21
posixmodule.h	791 B	-rw-r--r--	2024-03-19 22:46
posixmodule.o	1.49 MB	-rw-r--r--	2025-06-04 09:22
pwdmodule.c	8.89 KB	-rw-r--r--	2024-03-19 22:46
pwdmodule.gcda	4.96 KB	-rw-r--r--	2025-06-04 09:21
pwdmodule.o	84.35 KB	-rw-r--r--	2025-06-04 09:22
pyexpat.c	60.39 KB	-rw-r--r--	2024-03-19 22:46
readline.c	40.06 KB	-rw-r--r--	2024-03-19 22:46
resource.c	13.77 KB	-rw-r--r--	2024-03-19 22:46
rotatingtree.c	3.39 KB	-rw-r--r--	2024-03-19 22:46
rotatingtree.h	924 B	-rw-r--r--	2024-03-19 22:46
selectmodule.c	70.06 KB	-rw-r--r--	2024-03-19 22:46
sha1module.c	14.76 KB	-rw-r--r--	2024-03-19 22:46
sha256module.c	22.5 KB	-rw-r--r--	2024-03-19 22:46
sha512module.c	27.29 KB	-rw-r--r--	2024-03-19 22:46
signalmodule.c	52.45 KB	-rw-r--r--	2024-03-19 22:46
signalmodule.gcda	11.11 KB	-rw-r--r--	2025-06-04 09:21
signalmodule.o	235.02 KB	-rw-r--r--	2025-06-04 09:22
socketmodule.c	243.34 KB	-rw-r--r--	2024-03-19 22:46
socketmodule.h	8.56 KB	-rw-r--r--	2024-03-19 22:46
spwdmodule.c	6.69 KB	-rw-r--r--	2024-03-19 22:46
sre.h	2.83 KB	-rw-r--r--	2024-03-19 22:46
sre_constants.h	2.81 KB	-rw-r--r--	2024-03-19 22:46
sre_lib.h	52.08 KB	-rw-r--r--	2024-03-19 22:46
stringio.gcda	9.64 KB	-rw-r--r--	2025-06-04 09:21
stringio.o	193.45 KB	-rw-r--r--	2025-06-04 09:22
symtablemodule.c	3.67 KB	-rw-r--r--	2024-03-19 22:46
symtablemodule.gcda	4.25 KB	-rw-r--r--	2025-06-04 09:21
symtablemodule.o	55.01 KB	-rw-r--r--	2025-06-04 09:22
syslogmodule.c	10.64 KB	-rw-r--r--	2024-03-19 22:46
termios.c	22.52 KB	-rw-r--r--	2024-03-19 22:46
testcapi_long.h	6.77 KB	-rw-r--r--	2024-03-19 22:46
textio.gcda	23.51 KB	-rw-r--r--	2025-06-04 09:21
textio.o	645.09 KB	-rw-r--r--	2025-06-04 09:22
timemodule.c	57.23 KB	-rw-r--r--	2024-03-19 22:46
timemodule.gcda	8.3 KB	-rw-r--r--	2025-06-04 09:21
timemodule.o	177.2 KB	-rw-r--r--	2025-06-04 09:22
tkappinit.c	4.71 KB	-rw-r--r--	2024-03-19 22:46
tkinter.h	881 B	-rw-r--r--	2024-03-19 22:46
unicodedata.c	44.69 KB	-rw-r--r--	2024-03-19 22:46
unicodedata_db.h	531.75 KB	-rw-r--r--	2024-03-19 22:46
unicodename_db.h	2.12 MB	-rw-r--r--	2024-03-19 22:46
winreparse.h	1.59 KB	-rw-r--r--	2024-03-19 22:46
xxlimited.c	9.23 KB	-rw-r--r--	2024-03-19 22:46
xxlimited_35.c	6.88 KB	-rw-r--r--	2024-03-19 22:46
xxmodule.c	12.56 KB	-rw-r--r--	2024-03-19 22:46
xxsubtype.c	10.78 KB	-rw-r--r--	2024-03-19 22:46
xxsubtype.gcda	4.45 KB	-rw-r--r--	2025-06-04 09:21
xxsubtype.o	54.38 KB	-rw-r--r--	2025-06-04 09:22
zlibmodule.c	46.52 KB	-rw-r--r--	2024-03-19 22:46

Rename

/***********************************************************
    Written by:
    Fred Gansevles <Fred.Gansevles@cs.utwente.nl>
    B&O group,
    Faculteit der Informatica,
    Universiteit Twente,
    Enschede,
    the Netherlands.
******************************************************************/

/* NIS module implementation */

#include "Python.h"

#include <sys/time.h>
#include <sys/types.h>
#include <rpc/rpc.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>

#ifdef __sgi
/* This is missing from rpcsvc/ypclnt.h */
extern int yp_get_default_domain(char **);
#endif

PyDoc_STRVAR(get_default_domain__doc__,
"get_default_domain() -> str\n\
Corresponds to the C library yp_get_default_domain() call, returning\n\
the default NIS domain.\n");

PyDoc_STRVAR(match__doc__,
"match(key, map, domain = defaultdomain)\n\
Corresponds to the C library yp_match() call, returning the value of\n\
key in the given map. Optionally domain can be specified but it\n\
defaults to the system default domain.\n");

PyDoc_STRVAR(cat__doc__,
"cat(map, domain = defaultdomain)\n\
Returns the entire map as a dictionary. Optionally domain can be\n\
specified but it defaults to the system default domain.\n");

PyDoc_STRVAR(maps__doc__,
"maps(domain = defaultdomain)\n\
Returns an array of all available NIS maps within a domain. If domain\n\
is not specified it defaults to the system default domain.\n");

typedef struct {
    PyObject *nis_error;
} nis_state;

static inline nis_state*
get_nis_state(PyObject *module)
{
    void *state = PyModule_GetState(module);
    assert(state != NULL);
    return (nis_state *)state;
}

static int
nis_clear(PyObject *m)
{
    Py_CLEAR(get_nis_state(m)->nis_error);
    return 0;
}

static int
nis_traverse(PyObject *m, visitproc visit, void *arg)
{
    Py_VISIT(get_nis_state(m)->nis_error);
    return 0;
}

static void
nis_free(void *m)
{
    nis_clear((PyObject *) m);
}

static PyObject *
nis_error(nis_state *state, int err)
{
    PyErr_SetString(state->nis_error, yperr_string(err));
    return NULL;
}

static struct nis_map {
    char *alias;
    char *map;
    int  fix;
} aliases [] = {
    {"passwd",          "passwd.byname",        0},
    {"group",           "group.byname",         0},
    {"networks",        "networks.byaddr",      0},
    {"hosts",           "hosts.byname",         0},
    {"protocols",       "protocols.bynumber",   0},
    {"services",        "services.byname",      0},
    {"aliases",         "mail.aliases",         1}, /* created with 'makedbm -a' */
    {"ethers",          "ethers.byname",        0},
    {0L,                0L,                     0}
};

static char *
nis_mapname(char *map, int *pfix)
{
    int i;

*pfix = 0;
    for (i=0; aliases[i].alias != 0L; i++) {
        if (!strcmp (aliases[i].alias, map) || !strcmp (aliases[i].map, map)) {
            *pfix = aliases[i].fix;
            return aliases[i].map;
        }
    }

return map;
}

#if defined(__APPLE__) || defined(__OpenBSD__) || defined(__FreeBSD__)
typedef int (*foreachfunc)(unsigned long, char *, int, char *, int, void *);
#else
typedef int (*foreachfunc)(int, char *, int, char *, int, char *);
#endif

struct ypcallback_data {
    PyObject            *dict;
    int                         fix;
    PyThreadState *state;
};

static int
nis_foreach(int instatus, char *inkey, int inkeylen, char *inval,
             int invallen, struct ypcallback_data *indata)
{
    if (instatus == YP_TRUE) {
        PyObject *key;
        PyObject *val;
        int err;

PyEval_RestoreThread(indata->state);
        if (indata->fix) {
            if (inkeylen > 0 && inkey[inkeylen-1] == '\0')
            inkeylen--;
            if (invallen > 0 && inval[invallen-1] == '\0')
            invallen--;
        }
        key = PyUnicode_DecodeFSDefaultAndSize(inkey, inkeylen);
        val = PyUnicode_DecodeFSDefaultAndSize(inval, invallen);
        if (key == NULL || val == NULL) {
            /* XXX error -- don't know how to handle */
            PyErr_Clear();
            Py_XDECREF(key);
            Py_XDECREF(val);
            indata->state = PyEval_SaveThread();
            return 1;
        }
        err = PyDict_SetItem(indata->dict, key, val);
        Py_DECREF(key);
        Py_DECREF(val);
        if (err != 0)
            PyErr_Clear();
        indata->state = PyEval_SaveThread();
        if (err != 0)
            return 1;
        return 0;
    }
    return 1;
}

static PyObject *
nis_get_default_domain(PyObject *module, PyObject *Py_UNUSED(ignored))
{
    char *domain;
    int err;
    PyObject *res;
    nis_state *state = get_nis_state(module);
    if ((err = yp_get_default_domain(&domain)) != 0) {
        return nis_error(state, err);
    }

res = PyUnicode_FromStringAndSize (domain, strlen(domain));
    return res;
}

static PyObject *
nis_match(PyObject *module, PyObject *args, PyObject *kwdict)
{
    char *match;
    char *domain = NULL;
    Py_ssize_t keylen;
    int len;
    char *key, *map;
    int err;
    PyObject *ukey, *bkey, *res;
    int fix;
    static char *kwlist[] = {"key", "map", "domain", NULL};

if (!PyArg_ParseTupleAndKeywords(args, kwdict,
                                     "Us|s:match", kwlist,
                                     &ukey, &map, &domain)) {
        return NULL;
    }
    if ((bkey = PyUnicode_EncodeFSDefault(ukey)) == NULL) {
        return NULL;
    }
    /* check for embedded null bytes */
    if (PyBytes_AsStringAndSize(bkey, &key, &keylen) == -1) {
        Py_DECREF(bkey);
        return NULL;
    }

nis_state *state = get_nis_state(module);
    if (!domain && ((err = yp_get_default_domain(&domain)) != 0)) {
        Py_DECREF(bkey);
        return nis_error(state, err);
    }
    map = nis_mapname (map, &fix);
    if (fix)
        keylen++;
    Py_BEGIN_ALLOW_THREADS
    err = yp_match (domain, map, key, keylen, &match, &len);
    Py_END_ALLOW_THREADS
    Py_DECREF(bkey);
    if (fix)
        len--;
    if (err != 0) {
        return nis_error(state, err);
    }
    res = PyUnicode_DecodeFSDefaultAndSize(match, len);
    free (match);
    return res;
}

static PyObject *
nis_cat(PyObject *module, PyObject *args, PyObject *kwdict)
{
    char *domain = NULL;
    char *map;
    struct ypall_callback cb;
    struct ypcallback_data data;
    PyObject *dict;
    int err;
    static char *kwlist[] = {"map", "domain", NULL};

if (!PyArg_ParseTupleAndKeywords(args, kwdict, "s|s:cat",
                                     kwlist, &map, &domain)) {
        return NULL;
    }
    nis_state *state = get_nis_state(module);
    if (!domain && ((err = yp_get_default_domain(&domain)) != 0)) {
        return nis_error(state, err);
    }
    dict = PyDict_New ();
    if (dict == NULL)
        return NULL;
    cb.foreach = (foreachfunc)nis_foreach;
    data.dict = dict;
    map = nis_mapname (map, &data.fix);
    cb.data = (char *)&data;
    data.state = PyEval_SaveThread();
    err = yp_all (domain, map, &cb);
    PyEval_RestoreThread(data.state);
    if (err != 0) {
        Py_DECREF(dict);
        return nis_error(state, err);
    }
    return dict;
}

/* These should be u_long on Sun h/w but not on 64-bit h/w.
   This is not portable to machines with 16-bit ints and no prototypes */
#ifndef YPPROC_MAPLIST
#define YPPROC_MAPLIST  11
#endif
#ifndef YPPROG
#define YPPROG          100004
#endif
#ifndef YPVERS
#define YPVERS          2
#endif

typedef char *domainname;
typedef char *mapname;

enum nisstat {
    NIS_TRUE = 1,
    NIS_NOMORE = 2,
    NIS_FALSE = 0,
    NIS_NOMAP = -1,
    NIS_NODOM = -2,
    NIS_NOKEY = -3,
    NIS_BADOP = -4,
    NIS_BADDB = -5,
    NIS_YPERR = -6,
    NIS_BADARGS = -7,
    NIS_VERS = -8
};
typedef enum nisstat nisstat;

struct nismaplist {
    mapname map;
    struct nismaplist *next;
};
typedef struct nismaplist nismaplist;

struct nisresp_maplist {
    nisstat stat;
    nismaplist *maps;
};
typedef struct nisresp_maplist nisresp_maplist;

static struct timeval TIMEOUT = { 25, 0 };

static
bool_t
nis_xdr_domainname(XDR *xdrs, domainname *objp)
{
    if (!xdr_string(xdrs, objp, YPMAXDOMAIN)) {
        return (FALSE);
    }
    return (TRUE);
}

static
bool_t
nis_xdr_mapname(XDR *xdrs, mapname *objp)
{
    if (!xdr_string(xdrs, objp, YPMAXMAP)) {
        return (FALSE);
    }
    return (TRUE);
}

static
bool_t
nis_xdr_ypmaplist(XDR *xdrs, nismaplist *objp)
{
    if (!nis_xdr_mapname(xdrs, &objp->map)) {
        return (FALSE);
    }
    if (!xdr_pointer(xdrs, (char **)&objp->next,
                     sizeof(nismaplist), (xdrproc_t)nis_xdr_ypmaplist))
    {
        return (FALSE);
    }
    return (TRUE);
}

static
bool_t
nis_xdr_ypstat(XDR *xdrs, nisstat *objp)
{
    if (!xdr_enum(xdrs, (enum_t *)objp)) {
        return (FALSE);
    }
    return (TRUE);
}

static
bool_t
nis_xdr_ypresp_maplist(XDR *xdrs, nisresp_maplist *objp)
{
    if (!nis_xdr_ypstat(xdrs, &objp->stat)) {
        return (FALSE);
    }
    if (!xdr_pointer(xdrs, (char **)&objp->maps,
                     sizeof(nismaplist), (xdrproc_t)nis_xdr_ypmaplist))
    {
        return (FALSE);
    }
    return (TRUE);
}

static
nisresp_maplist *
nisproc_maplist_2(domainname *argp, CLIENT *clnt)
{
    static nisresp_maplist res;

memset(&res, 0, sizeof(res));
    if (clnt_call(clnt, YPPROC_MAPLIST,
                  (xdrproc_t)nis_xdr_domainname, (caddr_t)argp,
                  (xdrproc_t)nis_xdr_ypresp_maplist, (caddr_t)&res,
                  TIMEOUT) != RPC_SUCCESS)
    {
        return (NULL);
    }
    return (&res);
}

static
nismaplist *
nis_maplist(nis_state *state, char *dom)
{
    nisresp_maplist *list;
    CLIENT *cl;
    char *server = NULL;
    int mapi = 0;

while (!server && aliases[mapi].map != 0L) {
        yp_master (dom, aliases[mapi].map, &server);
        mapi++;
    }
    if (!server) {
        PyErr_SetString(state->nis_error, "No NIS master found for any map");
        return NULL;
    }
    cl = clnt_create(server, YPPROG, YPVERS, "tcp");
    if (cl == NULL) {
        PyErr_SetString(state->nis_error, clnt_spcreateerror(server));
        goto finally;
    }
    list = nisproc_maplist_2 (&dom, cl);
    clnt_destroy(cl);
    if (list == NULL)
        goto finally;
    if (list->stat != NIS_TRUE)
        goto finally;

free(server);
    return list->maps;

finally:
    free(server);
    return NULL;
}

static PyObject *
nis_maps (PyObject *module, PyObject *args, PyObject *kwdict)
{
    char *domain = NULL;
    nismaplist *maps;
    PyObject *list;
    int err;
    static char *kwlist[] = {"domain", NULL};

if (!PyArg_ParseTupleAndKeywords(args, kwdict,
                                     "|s:maps", kwlist, &domain)) {
        return NULL;
    }

nis_state *state = get_nis_state(module);
    if (!domain && ((err = yp_get_default_domain (&domain)) != 0)) {
        nis_error(state, err);
        return NULL;
    }

if ((maps = nis_maplist(state, domain)) == NULL) {
        return NULL;
    }
    if ((list = PyList_New(0)) == NULL) {
        return NULL;
    }
    for (; maps; maps = maps->next) {
        PyObject *str = PyUnicode_FromString(maps->map);
        if (!str || PyList_Append(list, str) < 0)
        {
            Py_XDECREF(str);
            Py_DECREF(list);
            list = NULL;
            break;
        }
        Py_DECREF(str);
    }
    /* XXX Shouldn't we free the list of maps now? */
    return list;
}

static PyMethodDef nis_methods[] = {
    {"match",                   (PyCFunction)(void(*)(void))nis_match,
                                    METH_VARARGS | METH_KEYWORDS,
                                    match__doc__},
    {"cat",                     (PyCFunction)(void(*)(void))nis_cat,
                                    METH_VARARGS | METH_KEYWORDS,
                                    cat__doc__},
    {"maps",                    (PyCFunction)(void(*)(void))nis_maps,
                                    METH_VARARGS | METH_KEYWORDS,
                                    maps__doc__},
    {"get_default_domain",      nis_get_default_domain,
                                    METH_NOARGS,
                                    get_default_domain__doc__},
    {NULL,                      NULL}            /* Sentinel */
};

static int
nis_exec(PyObject *module)
{
    nis_state* state = get_nis_state(module);
    state->nis_error = PyErr_NewException("nis.error", NULL, NULL);
    if (state->nis_error == NULL) {
        return -1;
    }

Py_INCREF(state->nis_error);
    if (PyModule_AddObject(module, "error", state->nis_error) < 0) {
        Py_DECREF(state->nis_error);
        return -1;
    }
    return 0;
}

static PyModuleDef_Slot nis_slots[] = {
    {Py_mod_exec, nis_exec},
    {0, NULL}
};

PyDoc_STRVAR(nis__doc__,
"This module contains functions for accessing NIS maps.\n");

static struct PyModuleDef nismodule = {
    PyModuleDef_HEAD_INIT,
    .m_name = "nis",
    .m_doc = nis__doc__,
    .m_size = sizeof(nis_state),
    .m_methods = nis_methods,
    .m_traverse = nis_traverse,
    .m_clear = nis_clear,
    .m_free = nis_free,
    .m_slots = nis_slots,
};

PyMODINIT_FUNC
PyInit_nis(void)
{
    return PyModuleDef_Init(&nismodule);
}