File: list.c

package info (click to toggle)
miredo 1.2.6-7.2
  • links: PTS, VCS
  • area: main
  • in suites: sid, trixie
  • size: 3,600 kB
  • sloc: sh: 11,947; ansic: 7,823; makefile: 292; sed: 16
file content (229 lines) | stat: -rw-r--r-- 5,147 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
/*
 * list.c - Libteredo peer list tests
 */

/***********************************************************************
 *  Copyright © 2005 Rémi Denis-Courmont.                              *
 *  This program is free software; you can redistribute and/or modify  *
 *  it under the terms of the GNU General Public License as published  *
 *  by the Free Software Foundation; version 2 of the license, or (at  *
 *  your option) any later version.                                    *
 *                                                                     *
 *  This program is distributed in the hope that it will be useful,    *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of     *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               *
 *  See the GNU General Public License for more details.               *
 *                                                                     *
 *  You should have received a copy of the GNU General Public License  *
 *  along with this program; if not, you can get it from:              *
 *  http://www.gnu.org/copyleft/gpl.html                               *
 ***********************************************************************/

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdbool.h>
#include <stdio.h>
#include <time.h>
#include <stdlib.h> // putenv()

#include <inttypes.h> /* for Mac OS X */
#include <sys/types.h>
#include <netinet/in.h>
#include <unistd.h>

#include "teredo.h"
#include "clock.h"
#include "peerlist.h"


static void wait (unsigned sec)
{
	printf ("Waiting %d second%s...\n", sec, (sec != 1) ? "s" : "");
	nanosleep (&(struct timespec){ sec, 0 }, NULL);
}


static teredo_peer *
lookup (teredo_peerlist *l, struct in6_addr *addr, bool *create)
{
	teredo_peer *p = teredo_list_lookup (l, addr, create);
	if (p != NULL)
		teredo_list_release (l);
	return p;
}


static bool try_lookup (teredo_peerlist *l, struct in6_addr *addr)
{
	return lookup (l, addr, NULL) != NULL;
}


static bool try_insert (teredo_peerlist *l, struct in6_addr *addr)
{
	bool created;
	return (lookup (l, addr, &created) != NULL) && created;
}


static int test_list (teredo_peerlist *l)
{
	struct in6_addr addr = { { } };

	puts ("Initial insertion test...");
	for (unsigned i = 0; i < 256; i++)
	{
		addr.s6_addr[12] = i;
		if ((i & 1) ? !try_insert (l, &addr) : try_lookup (l, &addr))
			return -1;
	}

	puts ("Initial lookup test...");
	// lookup tests
	for (unsigned i = 0; i < 256; i++)
	{
		addr.s6_addr[12] = i;
		if ((i & 1) != try_lookup (l, &addr))
			return -1;
	}

	wait (1);
	addr.s6_addr[0] = 1;
	puts ("Further insertion test...");
	for (unsigned i = 0; i < 256; i++)
	{

		addr.s6_addr[12] = i;
		if ((i & 1) ? ((i < 255) != try_insert (l, &addr))
		            : try_lookup (l, &addr))
			// items 1, 3...253 should have been created
			// items 255 should cause an overflow
			// items 0, 2... 254 did not exist and should not have been found
			return -1;
	}

	puts ("Lookup test...");
	for (unsigned i = 0; i < 256; i++)
	{
		addr.s6_addr[0] = 0;
		addr.s6_addr[12] = i;

		if (((i & 3) == 3) && !try_lookup (l, &addr))
			// item was created earlier
			return -1;

		addr.s6_addr[0] = 1;
		if (((i & 1) && (i < 255)) != try_lookup (l, &addr))
			return -1;
	}

	wait (2);
	puts ("Further lookup test...");
	for (unsigned i = 0; i < 256; i++)
	{
		addr.s6_addr[0] = 0;
		addr.s6_addr[12] = i;
		if ((i & 3) == 3)
		{
			if (!try_lookup (l, &addr))
				return -1;
		}

		addr.s6_addr[0] = 1;
		if (((i & 1) && (i != 255)) != try_lookup (l, &addr))
			return -1;
	}

	wait (2);
	addr.s6_addr[0] = 0;

	puts ("Partial expiration test...");
	for (unsigned i = 0; i < 256; i++)
	{
		addr.s6_addr[12] = i;
		if ((i & 3) == 3)
			continue;
		if (try_lookup (l, &addr))
			return -1;
	}

	wait (5);

	puts ("Full expiration test...");
	for (unsigned i = 0; i < 256; i++)
	{
		addr.s6_addr[12] = i;
		if ((i & 1) ? !try_insert (l, &addr) : try_lookup (l,  &addr))
			return -1;
	}

	return 0;
}


int main (void)
{
	struct in6_addr addr = { { } };

	putenv ((char *)"MALLOC_CHECK_=2");

	puts ("Basic empty list test...");
	teredo_peerlist *l = teredo_list_create (0, 3);
	if (l == NULL)
		return -1;
	else
	{
		bool create;

		if (teredo_list_lookup (l, &addr, &create) != NULL)
			return -1;

		teredo_list_destroy (l);
	}

	puts ("Advanced empty list test...");
	l = teredo_list_create (0, 3);
	if (l == NULL)
		return -1;
	else
	{
		bool create;

		if (teredo_list_lookup (l, &addr, &create) != NULL)
			return -1;

		teredo_list_reset (l, 1);
		// should now be able to insert a single item
		if (teredo_list_lookup (l, &addr, &create) == NULL)
			return -1;
		teredo_list_release (l);

		addr.s6_addr[12] = 10;
		if (teredo_list_lookup (l, &addr, &create) != NULL)
			return -1;

		teredo_list_reset (l, 1);
		teredo_list_reset (l, 1);
		teredo_list_destroy (l);
	}

	puts ("List creation test...");
	l = teredo_list_create (255, 2);
	if (l == NULL)
		return -1;

	if (test_list (l))
		return 1;

	wait (7);
	if (test_list (l))
		return 1;

	puts ("Final list release...");
	teredo_list_destroy (l);
	puts ("Done.");

	return 0;
}