1/*-
2 * Copyright (c) 2012-2017 Dag-Erling Sm��rgrav
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote
14 *    products derived from this software without specific prior written
15 *    permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifdef HAVE_CONFIG_H
31# include "config.h"
32#endif
33
34#include <err.h>
35#include <stdint.h>
36#include <stdio.h>
37#include <stdlib.h>
38#include <string.h>
39
40#include <cryb/test.h>
41
42#include <security/pam_appl.h>
43#include <security/openpam.h>
44
45#include "openpam_impl.h"
46
47#define T_FUNC(n, d)							\
48	static const char *t_ ## n ## _desc = d;			\
49	static int t_ ## n ## _func(OPENPAM_UNUSED(char **desc),	\
50	    OPENPAM_UNUSED(void *arg))
51
52#define T(n)								\
53	t_add_test(&t_ ## n ## _func, NULL, "%s", t_ ## n ## _desc)
54
55/*
56 * Read a line from the temp file and verify that the result matches our
57 * expectations: whether a line was read at all, how many and which words
58 * it contained, how many lines were read (in case of quoted or escaped
59 * newlines) and whether we reached the end of the file.
60 */
61static int
62orlv_expect(struct t_file *tf, const char **expectedv, int lines, int eof)
63{
64	int expectedc, gotc, i, lineno = 0;
65	char **gotv;
66	int ret;
67
68	ret = 1;
69	expectedc = 0;
70	if (expectedv != NULL)
71		while (expectedv[expectedc] != NULL)
72			++expectedc;
73	gotv = openpam_readlinev(tf->file, &lineno, &gotc);
74	if (t_ferror(tf))
75		err(1, "%s(): %s", __func__, tf->name);
76	if (expectedv != NULL && gotv == NULL) {
77		t_printv("expected %d words, got nothing\n", expectedc);
78		ret = 0;
79	} else if (expectedv == NULL && gotv != NULL) {
80		t_printv("expected nothing, got %d words\n", gotc);
81		ret = 0;
82	} else if (expectedv != NULL && gotv != NULL) {
83		if (expectedc != gotc) {
84			t_printv("expected %d words, got %d\n",
85			    expectedc, gotc);
86			ret = 0;
87		}
88		for (i = 0; i < gotc; ++i) {
89			if (strcmp(expectedv[i], gotv[i]) != 0) {
90				t_printv("word %d: expected <<%s>>, "
91				    "got <<%s>>\n", i, expectedv[i], gotv[i]);
92				ret = 0;
93			}
94		}
95	}
96	FREEV(gotc, gotv);
97	if (lineno != lines) {
98		t_printv("expected to advance %d lines, advanced %d lines\n",
99		    lines, lineno);
100		ret = 0;
101	}
102	if (eof && !t_feof(tf)) {
103		t_printv("expected EOF, but didn't get it\n");
104		ret = 0;
105	} else if (!eof && t_feof(tf)) {
106		t_printv("didn't expect EOF, but got it anyway\n");
107		ret = 0;
108	}
109	return (ret);
110}
111
112
113/***************************************************************************
114 * Commonly-used lines
115 */
116
117static const char *empty[] = {
118	NULL
119};
120
121static const char *hello[] = {
122	"hello",
123	NULL
124};
125
126static const char *hello_world[] = {
127	"hello",
128	"world",
129	NULL
130};
131
132static const char *numbers[] = {
133	"zero", "one", "two", "three", "four", "five", "six", "seven",
134	"eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen",
135	"fifteen", "sixteen", "seventeen", "nineteen", "twenty",
136	"twenty-one", "twenty-two", "twenty-three", "twenty-four",
137	"twenty-five", "twenty-six", "twenty-seven", "twenty-eight",
138	"twenty-nine", "thirty", "thirty-one", "thirty-two", "thirty-three",
139	"thirty-four", "thirty-five", "thirty-six", "thirty-seven",
140	"thirty-eight", "thirty-nine", "fourty", "fourty-one", "fourty-two",
141	"fourty-three", "fourty-four", "fourty-five", "fourty-six",
142	"fourty-seven", "fourty-eight", "fourty-nine", "fifty", "fifty-one",
143	"fifty-two", "fifty-three", "fifty-four", "fifty-five", "fifty-six",
144	"fifty-seven", "fifty-eight", "fifty-nine", "sixty", "sixty-one",
145	"sixty-two", "sixty-three",
146	NULL
147};
148
149
150/***************************************************************************
151 * Lines without words
152 */
153
154T_FUNC(empty_input, "empty input")
155{
156	struct t_file *tf;
157	int ret;
158
159	tf = t_fopen(NULL);
160	ret = orlv_expect(tf, NULL, 0 /*lines*/, 1 /*eof*/);
161	t_fclose(tf);
162	return (ret);
163}
164
165T_FUNC(empty_line, "empty line")
166{
167	struct t_file *tf;
168	int ret;
169
170	tf = t_fopen(NULL);
171	t_fprintf(tf, "\n");
172	t_frewind(tf);
173	ret = orlv_expect(tf, empty, 1 /*lines*/, 0 /*eof*/);
174	t_fclose(tf);
175	return (ret);
176}
177
178T_FUNC(unterminated_empty_line, "unterminated empty line")
179{
180	struct t_file *tf;
181	int ret;
182
183	tf = t_fopen(NULL);
184	t_fprintf(tf, " ");
185	t_frewind(tf);
186	ret = orlv_expect(tf, NULL, 0 /*lines*/, 1 /*eof*/);
187	t_fclose(tf);
188	return (ret);
189}
190
191T_FUNC(whitespace, "whitespace")
192{
193	struct t_file *tf;
194	int ret;
195
196	tf = t_fopen(NULL);
197	t_fprintf(tf, " \n");
198	t_frewind(tf);
199	ret = orlv_expect(tf, empty, 1 /*lines*/, 0 /*eof*/);
200	t_fclose(tf);
201	return (ret);
202}
203
204T_FUNC(comment, "comment")
205{
206	struct t_file *tf;
207	int ret;
208
209	tf = t_fopen(NULL);
210	t_fprintf(tf, "# comment\n");
211	t_frewind(tf);
212	ret = orlv_expect(tf, empty, 1 /*lines*/, 0 /*eof*/);
213	t_fclose(tf);
214	return (ret);
215}
216
217T_FUNC(whitespace_before_comment, "whitespace before comment")
218{
219	struct t_file *tf;
220	int ret;
221
222	tf = t_fopen(NULL);
223	t_fprintf(tf, " # comment\n");
224	t_frewind(tf);
225	ret = orlv_expect(tf, empty, 1 /*lines*/, 0 /*eof*/);
226	t_fclose(tf);
227	return (ret);
228}
229
230T_FUNC(line_continuation_within_whitespace, "line continuation within whitespace")
231{
232	struct t_file *tf;
233	int ret;
234
235	tf = t_fopen(NULL);
236	t_fprintf(tf, "%s \\\n %s\n", hello_world[0], hello_world[1]);
237	t_frewind(tf);
238	ret = orlv_expect(tf, hello_world, 2 /*lines*/, 0 /*eof*/) &&
239	    orlv_expect(tf, NULL, 0 /*lines*/, 1 /*eof*/);
240	t_fclose(tf);
241	return (ret);
242}
243
244
245/***************************************************************************
246 * Simple words
247 */
248
249T_FUNC(one_word, "one word")
250{
251	struct t_file *tf;
252	int ret;
253
254	tf = t_fopen(NULL);
255	t_fprintf(tf, "hello\n");
256	t_frewind(tf);
257	ret = orlv_expect(tf, hello, 1 /*lines*/, 0 /*eof*/);
258	t_fclose(tf);
259	return (ret);
260}
261
262T_FUNC(two_words, "two words")
263{
264	struct t_file *tf;
265	int ret;
266
267	tf = t_fopen(NULL);
268	t_fprintf(tf, "hello world\n");
269	t_frewind(tf);
270	ret = orlv_expect(tf, hello_world, 1 /*lines*/, 0 /*eof*/);
271	t_fclose(tf);
272	return (ret);
273}
274
275T_FUNC(many_words, "many words")
276{
277	struct t_file *tf;
278	const char **word;
279	int ret;
280
281	tf = t_fopen(NULL);
282	for (word = numbers; *word; ++word)
283		t_fprintf(tf, " %s", *word);
284	t_fprintf(tf, "\n");
285	t_frewind(tf);
286	ret = orlv_expect(tf, numbers, 1 /*lines*/, 0 /*eof*/);
287	t_fclose(tf);
288	return (ret);
289}
290
291T_FUNC(unterminated_line, "unterminated line")
292{
293	struct t_file *tf;
294	int ret;
295
296	tf = t_fopen(NULL);
297	t_fprintf(tf, "hello world");
298	t_frewind(tf);
299	ret = orlv_expect(tf, hello_world, 0 /*lines*/, 1 /*eof*/);
300	t_fclose(tf);
301	return (ret);
302}
303
304
305/***************************************************************************
306 * Boilerplate
307 */
308
309static int
310t_prepare(int argc, char *argv[])
311{
312
313	(void)argc;
314	(void)argv;
315
316	T(empty_input);
317	T(empty_line);
318	T(unterminated_empty_line);
319	T(whitespace);
320	T(comment);
321	T(whitespace_before_comment);
322	T(line_continuation_within_whitespace);
323
324	T(one_word);
325	T(two_words);
326	T(many_words);
327	T(unterminated_line);
328
329	return (0);
330}
331
332int
333main(int argc, char *argv[])
334{
335
336	t_main(t_prepare, NULL, argc, argv);
337}
338