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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/amd/amd/info_nis.c	Lines:	0	86	0.0 %
Date:	2017-11-13	Branches:	0	46	0.0 %


/*
 * Copyright (c) 1989 Jan-Simon Pendry
 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
 * Copyright (c) 1989, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Jan-Simon Pendry at Imperial College, London.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	from: @(#)info_nis.c	8.1 (Berkeley) 6/6/93
 *	$Id: info_nis.c,v 1.13 2014/10/26 03:28:41 guenther Exp $
 */

/*
 * Get info from NIS map
 */

#include "am.h"

#include <unistd.h>

#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>
#include <time.h>

/*
 * Sun's NIS+ server in NIS compat mode does not have yp_order()
 */
static int has_yp_order = FALSE;

/*
 * Figure out the nis domain name
 */
static int
determine_nis_domain(void)
{
	static int nis_not_running = 0;

	char default_domain[YPMAXDOMAIN];

	if (nis_not_running)
		return ENOENT;

	if (getdomainname(default_domain, sizeof(default_domain)) < 0) {
		nis_not_running = 1;
		plog(XLOG_ERROR, "getdomainname: %m");
		return EIO;
	}

	if (!*default_domain) {
		nis_not_running = 1;
		plog(XLOG_INFO, "NIS domain name is not set.  NIS ignored.");
		return ENOENT;
	}

	domain = strdup(default_domain);

	return 0;
}


struct nis_callback_data {
	mnt_map *ncd_m;
	char *ncd_map;
	void (*ncd_fn)(mnt_map *, char *, char *);
};

/*
 * Callback from yp_all
 */
static int
callback(unsigned long status, char *key, int kl, char *val, int vl, void *arg)
{
	struct nis_callback_data *data = arg;

	if (status == YP_TRUE) {
		/*
		 * Add to list of maps
		 */
		char *kp = strnsave(key, kl);
		char *vp = strnsave(val, vl);

		(*data->ncd_fn)(data->ncd_m, kp, vp);

		/*
		 * We want more ...
		 */
		return FALSE;
	} else {
		/*
		 * NOMORE means end of map - otherwise log error
		 */
		if (status != YP_NOMORE) {
			/*
			 * Check what went wrong
			 */
			int e = ypprot_err(status);

#ifdef DEBUG
			plog(XLOG_ERROR, "yp enumeration of %s: %s, status=%d, e=%d",
			    data->ncd_map, yperr_string(e), status, e);
#else
			plog(XLOG_ERROR, "yp enumeration of %s: %s",
			    data->ncd_map, yperr_string(e));
#endif
		}
		return TRUE;
	}
}

int
nis_reload(mnt_map *m, char *map, void (*fn)(mnt_map *, char *, char *))
{
	struct ypall_callback cbinfo;
	int error;
	struct nis_callback_data data;

	if (!domain) {
		error = determine_nis_domain();
		if (error)
			return error;
	}

	data.ncd_m = m;
	data.ncd_map = map;
	data.ncd_fn = fn;
	cbinfo.data = (void *)&data;
	cbinfo.foreach = &callback;

	error = yp_all(domain, map, &cbinfo);

	if (error)
		plog(XLOG_ERROR, "error grabbing nis map of %s: %s",
		    map, yperr_string(ypprot_err(error)));

	return error;
}

/*
 * Try to locate a key using NIS.
 */
int
nis_search(mnt_map *m, char *map, char *key, char **val, time_t *tp)
{
	int outlen;
	int order;
	int res;

	/*
	 * Make sure domain initialised
	 */
	if (has_yp_order) {
		/* check if map has changed */
		if (yp_order(domain, map, &order))
			return EIO;
		if ((time_t) order > *tp) {
			*tp = (time_t) order;
			return -1;
		}
	} else {
		/*
		 * NIS+ server without yp_order
		 * Check if timeout has expired to invalidate the cache
		 */
		order = time(NULL);
		if ((time_t)order - *tp > am_timeo) {
			*tp = (time_t)order;
			return(-1);
		}
	}


	if (has_yp_order) {
		/*
		 * Check if map has changed
		 */
		if (yp_order(domain, map, &order))
			return EIO;
		if ((time_t) order > *tp) {
			*tp = (time_t) order;
			return -1;
		}
	} else {
		/*
		 * NIS+ server without yp_order
		 * Check if timeout has expired to invalidate the cache
		 */
		order = time(NULL);
		if ((time_t)order - *tp > am_timeo) {
			*tp = (time_t)order;
			return(-1);
		}
	}

	/*
	 * Lookup key
	 */
	res = yp_match(domain, map, key, strlen(key), val, &outlen);

	/*
	 * Do something interesting with the return code
	 */
	switch (res) {
	case 0:
		return 0;

	case YPERR_KEY:
		return ENOENT;

	default:
		plog(XLOG_ERROR, "%s: %s", map, yperr_string(res));
		return EIO;
	}
}

int
nis_init(char *map, time_t *tp)
{
	int order;
	int yp_order_result;
	char *master;

	if (!domain) {
		int error = determine_nis_domain();

		if (error)
			return error;
	}

	/*
	 * To see if the map exists, try to find
	 * a master for it.
	 */
	yp_order_result = yp_order(domain, map, &order);
	switch (yp_order_result) {
	case 0:
		has_yp_order = TRUE;
		*tp = (time_t)order;
#ifdef DEBUG
		dlog("NIS master for %s@%s has order %d", map, domain, order);
#endif
		break;
	case YPERR_YPERR:
		plog(XLOG_ERROR, "%s: %s", map, "NIS+ server");
		/* NIS+ server found ! */
		has_yp_order = FALSE;

		/* try yp_master() instead */
		if (yp_master(domain, map, &master))
			return ENOENT;
		else
		        *tp = time(NULL); /* Use fake timestamps */
		break;
	default:
		return ENOENT;
	}
	return 0;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/*
2			* Copyright (c) 1989 Jan-Simon Pendry
3			* Copyright (c) 1989 Imperial College of Science, Technology & Medicine
4			* Copyright (c) 1989, 1993
5			* The Regents of the University of California. All rights reserved.
6			*
7			* This code is derived from software contributed to Berkeley by
8			* Jan-Simon Pendry at Imperial College, London.
9			*
10			* Redistribution and use in source and binary forms, with or without
11			* modification, are permitted provided that the following conditions
12			* are met:
13			* 1. Redistributions of source code must retain the above copyright
14			* notice, this list of conditions and the following disclaimer.
15			* 2. Redistributions in binary form must reproduce the above copyright
16			* notice, this list of conditions and the following disclaimer in the
17			* documentation and/or other materials provided with the distribution.
18			* 3. Neither the name of the University nor the names of its contributors
19			* may be used to endorse or promote products derived from this software
20			* without specific prior written permission.
21			*
22			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32			* SUCH DAMAGE.
33			*
34			* from: @(#)info_nis.c 8.1 (Berkeley) 6/6/93
35			* $Id: info_nis.c,v 1.13 2014/10/26 03:28:41 guenther Exp $
36			*/
37
38			/*
39			* Get info from NIS map
40			*/
41
42			#include "am.h"
43
44			#include <unistd.h>
45
46			#include <rpcsvc/yp_prot.h>
47			#include <rpcsvc/ypclnt.h>
48			#include <time.h>
49
50			/*
51			* Sun's NIS+ server in NIS compat mode does not have yp_order()
52			*/
53			static int has_yp_order = FALSE;
54
55			/*
56			* Figure out the nis domain name
57			*/
58			static int
59			determine_nis_domain(void)
60			{
61			static int nis_not_running = 0;
62
63			char default_domain[YPMAXDOMAIN];
64
65			if (nis_not_running)
66			return ENOENT;
67
68			if (getdomainname(default_domain, sizeof(default_domain)) < 0) {
69			nis_not_running = 1;
70			plog(XLOG_ERROR, "getdomainname: %m");
71			return EIO;
72			}
73
74			if (!*default_domain) {
75			nis_not_running = 1;
76			plog(XLOG_INFO, "NIS domain name is not set. NIS ignored.");
77			return ENOENT;
78			}
79
80			domain = strdup(default_domain);
81
82			return 0;
83			}
84
85
86			struct nis_callback_data {
87			mnt_map *ncd_m;
88			char *ncd_map;
89			void (ncd_fn)(mnt_map , char , char );
90			};
91
92			/*
93			* Callback from yp_all
94			*/
95			static int
96			callback(unsigned long status, char key, int kl, char val, int vl, void *arg)
97			{
98			struct nis_callback_data *data = arg;
99
100			if (status == YP_TRUE) {
101			/*
102			* Add to list of maps
103			*/
104			char *kp = strnsave(key, kl);
105			char *vp = strnsave(val, vl);
106
107			(*data->ncd_fn)(data->ncd_m, kp, vp);
108
109			/*
110			* We want more ...
111			*/
112			return FALSE;
113			} else {
114			/*
115			* NOMORE means end of map - otherwise log error
116			*/
117			if (status != YP_NOMORE) {
118			/*
119			* Check what went wrong
120			*/
121			int e = ypprot_err(status);
122
123			#ifdef DEBUG
124			plog(XLOG_ERROR, "yp enumeration of %s: %s, status=%d, e=%d",
125			data->ncd_map, yperr_string(e), status, e);
126			#else
127			plog(XLOG_ERROR, "yp enumeration of %s: %s",
128			data->ncd_map, yperr_string(e));
129			#endif
130			}
131			return TRUE;
132			}
133			}
134
135			int
136			nis_reload(mnt_map m, char map, void (fn)(mnt_map , char , char ))
137			{
138			struct ypall_callback cbinfo;
139			int error;
140			struct nis_callback_data data;
141
142			if (!domain) {
143			error = determine_nis_domain();
144			if (error)
145			return error;
146			}
147
148			data.ncd_m = m;
149			data.ncd_map = map;
150			data.ncd_fn = fn;
151			cbinfo.data = (void *)&data;
152			cbinfo.foreach = &callback;
153
154			error = yp_all(domain, map, &cbinfo);
155
156			if (error)
157			plog(XLOG_ERROR, "error grabbing nis map of %s: %s",
158			map, yperr_string(ypprot_err(error)));
159
160			return error;
161			}
162
163			/*
164			* Try to locate a key using NIS.
165			*/
166			int
167			nis_search(mnt_map m, char map, char key, char val, time_t tp)
168			{
169			int outlen;
170			int order;
171			int res;
172
173			/*
174			* Make sure domain initialised
175			*/
176			if (has_yp_order) {
177			/* check if map has changed */
178			if (yp_order(domain, map, &order))
179			return EIO;
180			if ((time_t) order > *tp) {
181			*tp = (time_t) order;
182			return -1;
183			}
184			} else {
185			/*
186			* NIS+ server without yp_order
187			* Check if timeout has expired to invalidate the cache
188			*/
189			order = time(NULL);
190			if ((time_t)order - *tp > am_timeo) {
191			*tp = (time_t)order;
192			return(-1);
193			}
194			}
195
196
197			if (has_yp_order) {
198			/*
199			* Check if map has changed
200			*/
201			if (yp_order(domain, map, &order))
202			return EIO;
203			if ((time_t) order > *tp) {
204			*tp = (time_t) order;
205			return -1;
206			}
207			} else {
208			/*
209			* NIS+ server without yp_order
210			* Check if timeout has expired to invalidate the cache
211			*/
212			order = time(NULL);
213			if ((time_t)order - *tp > am_timeo) {
214			*tp = (time_t)order;
215			return(-1);
216			}
217			}
218
219			/*
220			* Lookup key
221			*/
222			res = yp_match(domain, map, key, strlen(key), val, &outlen);
223
224			/*
225			* Do something interesting with the return code
226			*/
227			switch (res) {
228			case 0:
229			return 0;
230
231			case YPERR_KEY:
232			return ENOENT;
233
234			default:
235			plog(XLOG_ERROR, "%s: %s", map, yperr_string(res));
236			return EIO;
237			}
238			}
239
240			int
241			nis_init(char map, time_t tp)
242			{
243			int order;
244			int yp_order_result;
245			char *master;
246
247			if (!domain) {
248			int error = determine_nis_domain();
249
250			if (error)
251			return error;
252			}
253
254			/*
255			* To see if the map exists, try to find
256			* a master for it.
257			*/
258			yp_order_result = yp_order(domain, map, &order);
259			switch (yp_order_result) {
260			case 0:
261			has_yp_order = TRUE;
262			*tp = (time_t)order;
263			#ifdef DEBUG
264			dlog("NIS master for %s@%s has order %d", map, domain, order);
265			#endif
266			break;
267			case YPERR_YPERR:
268			plog(XLOG_ERROR, "%s: %s", map, "NIS+ server");
269			/* NIS+ server found ! */
270			has_yp_order = FALSE;
271
272			/* try yp_master() instead */
273			if (yp_master(domain, map, &master))
274			return ENOENT;
275			else
276			tp = time(NULL); / Use fake timestamps */
277			break;
278			default:
279			return ENOENT;
280			}
281			return 0;
282			}