t_openpam_readword.c revision 236099
1/*-
2 * Copyright (c) 2012 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 *    in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote
15 *    products derived from this software without specific prior written
16 *    permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $Id: t_openpam_readword.c 584 2012-04-07 22:47:16Z des $
31 */
32
33#ifdef HAVE_CONFIG_H
34# include "config.h"
35#endif
36
37#include <err.h>
38#include <errno.h>
39#include <fcntl.h>
40#include <stdio.h>
41#include <stdlib.h>
42#include <string.h>
43#include <unistd.h>
44
45#include <security/pam_appl.h>
46#include <security/openpam.h>
47
48#include "t.h"
49
50static char filename[1024];
51static FILE *f;
52
53/*
54 * Open the temp file and immediately unlink it so it doesn't leak in case
55 * of premature exit.
56 */
57static void
58orw_open(void)
59{
60	int fd;
61
62	if ((fd = open(filename, O_RDWR|O_CREAT|O_TRUNC, 0600)) < 0)
63		err(1, "%s(): %s", __func__, filename);
64	if ((f = fdopen(fd, "r+")) == NULL)
65		err(1, "%s(): %s", __func__, filename);
66	if (unlink(filename) < 0)
67		err(1, "%s(): %s", __func__, filename);
68}
69
70/*
71 * Write text to the temp file.
72 */
73static void
74orw_output(const char *fmt, ...)
75{
76	va_list ap;
77
78	va_start(ap, fmt);
79	vfprintf(f, fmt, ap);
80	va_end(ap);
81	if (ferror(f))
82		err(1, "%s", filename);
83}
84
85/*
86 * Rewind the temp file.
87 */
88static void
89orw_rewind(void)
90{
91
92	errno = 0;
93	rewind(f);
94	if (errno != 0)
95		err(1, "%s(): %s", __func__, filename);
96}
97
98/*
99 * Read a word from the temp file and verify that the result matches our
100 * expectations: whether a word was read at all, how many lines were read
101 * (in case of quoted or escaped newlines), whether we reached the end of
102 * the file and whether we reached the end of the line.
103 */
104static int
105orw_expect(const char *expected, int lines, int eof, int eol)
106{
107	int ch, lineno = 0;
108	char *got;
109	size_t len;
110
111	got = openpam_readword(f, &lineno, &len);
112	if (ferror(f))
113		err(1, "%s(): %s", __func__, filename);
114	if (expected != NULL && got == NULL) {
115		t_verbose("expected <<%s>>, got nothing\n", expected);
116		return (0);
117	}
118	if (expected == NULL && got != NULL) {
119		t_verbose("expected nothing, got <<%s>>\n", got);
120		return (0);
121	}
122	if (expected != NULL && got != NULL && strcmp(expected, got) != 0) {
123		t_verbose("expected <<%s>>, got <<%s>>\n", expected, got);
124		return (0);
125	}
126	if (lineno != lines) {
127		t_verbose("expected to advance %d lines, advanced %d lines\n",
128		    lines, lineno);
129		return (0);
130	}
131	if (eof && !feof(f)) {
132		t_verbose("expected EOF, but didn't get it\n");
133		return (0);
134	}
135	if (!eof && feof(f)) {
136		t_verbose("didn't expect EOF, but got it anyway\n");
137		return (0);
138	}
139	ch = fgetc(f);
140	if (ferror(f))
141		err(1, "%s(): %s", __func__, filename);
142	if (eol && ch != '\n') {
143		t_verbose("expected EOL, but didn't get it\n");
144		return (0);
145	}
146	if (!eol && ch == '\n') {
147		t_verbose("didn't expect EOL, but got it anyway\n");
148		return (0);
149	}
150	if (ch != EOF)
151		ungetc(ch, f);
152	return (1);
153}
154
155/*
156 * Close the temp file.
157 */
158void
159orw_close(void)
160{
161
162	if (fclose(f) != 0)
163		err(1, "%s(): %s", __func__, filename);
164	f = NULL;
165}
166
167
168/***************************************************************************
169 * Lines without words
170 */
171
172T_FUNC(empty_input, "empty input")
173{
174	int ret;
175
176	orw_open();
177	ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
178	orw_close();
179	return (ret);
180}
181
182T_FUNC(empty_line, "empty line")
183{
184	int ret;
185
186	orw_open();
187	orw_output("\n");
188	orw_rewind();
189	ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
190	orw_close();
191	return (ret);
192}
193
194T_FUNC(unterminated_line, "unterminated line")
195{
196	int ret;
197
198	orw_open();
199	orw_output(" ");
200	orw_rewind();
201	ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
202	orw_close();
203	return (ret);
204}
205
206T_FUNC(single_whitespace, "single whitespace")
207{
208	int ret;
209
210	orw_open();
211	orw_output(" \n");
212	orw_rewind();
213	ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
214	orw_close();
215	return (ret);
216}
217
218T_FUNC(multiple_whitespace, "multiple whitespace")
219{
220	int ret;
221
222	orw_open();
223	orw_output(" \t\r\n");
224	orw_rewind();
225	ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
226	orw_close();
227	return (ret);
228}
229
230T_FUNC(comment, "comment")
231{
232	int ret;
233
234	orw_open();
235	orw_output("# comment\n");
236	orw_rewind();
237	ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
238	orw_close();
239	return (ret);
240}
241
242T_FUNC(whitespace_before_comment, "whitespace before comment")
243{
244	int ret;
245
246	orw_open();
247	orw_output(" # comment\n");
248	orw_rewind();
249	ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
250	orw_close();
251	return (ret);
252}
253
254
255/***************************************************************************
256 * Simple cases - no quotes or escapes
257 */
258
259T_FUNC(single_word, "single word")
260{
261	const char *word = "hello";
262	int ret;
263
264	orw_open();
265	orw_output("%s\n", word);
266	orw_rewind();
267	ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
268	orw_close();
269	return (ret);
270}
271
272T_FUNC(single_whitespace_before_word, "single whitespace before word")
273{
274	const char *word = "hello";
275	int ret;
276
277	orw_open();
278	orw_output(" %s\n", word);
279	orw_rewind();
280	ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
281	orw_close();
282	return (ret);
283}
284
285T_FUNC(double_whitespace_before_word, "double whitespace before word")
286{
287	const char *word = "hello";
288	int ret;
289
290	orw_open();
291	orw_output("  %s\n", word);
292	orw_rewind();
293	ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
294	orw_close();
295	return (ret);
296}
297
298T_FUNC(single_whitespace_after_word, "single whitespace after word")
299{
300	const char *word = "hello";
301	int ret;
302
303	orw_open();
304	orw_output("%s \n", word);
305	orw_rewind();
306	ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 0 /*eol*/);
307	orw_close();
308	return (ret);
309}
310
311T_FUNC(double_whitespace_after_word, "double whitespace after word")
312{
313	const char *word = "hello";
314	int ret;
315
316	orw_open();
317	orw_output("%s  \n", word);
318	orw_rewind();
319	ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 0 /*eol*/);
320	orw_close();
321	return (ret);
322}
323
324T_FUNC(comment_after_word, "comment after word")
325{
326	const char *word = "hello";
327	int ret;
328
329	orw_open();
330	orw_output("%s # comment\n", word);
331	orw_rewind();
332	ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
333	    orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
334	orw_close();
335	return (ret);
336}
337
338T_FUNC(word_containing_hash, "word containing hash")
339{
340	const char *word = "hello#world";
341	int ret;
342
343	orw_open();
344	orw_output("%s\n", word);
345	orw_rewind();
346	ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
347	orw_close();
348	return (ret);
349}
350
351T_FUNC(two_words, "two words")
352{
353	const char *word[] = { "hello", "world" };
354	int ret;
355
356	orw_open();
357	orw_output("%s %s\n", word[0], word[1]);
358	orw_rewind();
359	ret = orw_expect(word[0], 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
360	    orw_expect(word[1], 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
361	orw_close();
362	return (ret);
363}
364
365
366/***************************************************************************
367 * Escapes
368 */
369
370T_FUNC(naked_escape, "naked escape")
371{
372	int ret;
373
374	orw_open();
375	orw_output("\\");
376	orw_rewind();
377	ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
378	orw_close();
379	return (ret);
380}
381
382T_FUNC(escaped_escape, "escaped escape")
383{
384	int ret;
385
386	orw_open();
387	orw_output("\\\\\n");
388	orw_rewind();
389	ret = orw_expect("\\", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
390	orw_close();
391	return (ret);
392}
393
394T_FUNC(escaped_whitespace, "escaped whitespace")
395{
396	int ret;
397
398	orw_open();
399	orw_output("\\  \\\t \\\r \\\n\n");
400	orw_rewind();
401	ret = orw_expect(" ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
402	    orw_expect("\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
403	    orw_expect("\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
404	    /* this last one is a line continuation */
405	    orw_expect(NULL, 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
406	orw_close();
407	return (ret);
408}
409
410T_FUNC(escaped_newline_before_word, "escaped newline before word")
411{
412	int ret;
413
414	orw_open();
415	orw_output("\\\nhello world\n");
416	orw_rewind();
417	ret = orw_expect("hello", 1 /*lines*/, 0 /*eof*/, 0 /*eol*/);
418	orw_close();
419	return (ret);
420}
421
422T_FUNC(escaped_newline_within_word, "escaped newline within word")
423{
424	int ret;
425
426	orw_open();
427	orw_output("hello\\\nworld\n");
428	orw_rewind();
429	ret = orw_expect("helloworld", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
430	orw_close();
431	return (ret);
432}
433
434T_FUNC(escaped_newline_after_word, "escaped newline after word")
435{
436	int ret;
437
438	orw_open();
439	orw_output("hello\\\n world\n");
440	orw_rewind();
441	ret = orw_expect("hello", 1 /*lines*/, 0 /*eof*/, 0 /*eol*/);
442	orw_close();
443	return (ret);
444}
445
446T_FUNC(escaped_letter, "escaped letter")
447{
448	int ret;
449
450	orw_open();
451	orw_output("\\z\n");
452	orw_rewind();
453	ret = orw_expect("z", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
454	orw_close();
455	return (ret);
456}
457
458
459/***************************************************************************
460 * Quotes
461 */
462
463T_FUNC(naked_single_quote, "naked single quote")
464{
465	int ret;
466
467	orw_open();
468	orw_output("'");
469	orw_rewind();
470	ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
471	orw_close();
472	return (ret);
473}
474
475T_FUNC(naked_double_quote, "naked double quote")
476{
477	int ret;
478
479	orw_open();
480	orw_output("\"");
481	orw_rewind();
482	ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
483	orw_close();
484	return (ret);
485}
486
487T_FUNC(empty_single_quotes, "empty single quotes")
488{
489	int ret;
490
491	orw_open();
492	orw_output("''\n");
493	orw_rewind();
494	ret = orw_expect("", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
495	orw_close();
496	return (ret);
497}
498
499T_FUNC(empty_double_quotes, "empty double quotes")
500{
501	int ret;
502
503	orw_open();
504	orw_output("\"\"\n");
505	orw_rewind();
506	ret = orw_expect("", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
507	orw_close();
508	return (ret);
509}
510
511T_FUNC(single_quotes_within_double_quotes, "single quotes within double quotes")
512{
513	int ret;
514
515	orw_open();
516	orw_output("\"' '\"\n");
517	orw_rewind();
518	ret = orw_expect("' '", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
519	orw_close();
520	return (ret);
521}
522
523T_FUNC(double_quotes_within_single_quotes, "double quotes within single quotes")
524{
525	int ret;
526
527	orw_open();
528	orw_output("'\" \"'\n");
529	orw_rewind();
530	ret = orw_expect("\" \"", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
531	orw_close();
532	return (ret);
533}
534
535T_FUNC(single_quoted_whitespace, "single-quoted whitespace")
536{
537	int ret;
538
539	orw_open();
540	orw_output("' ' '\t' '\r' '\n'\n");
541	orw_rewind();
542	ret = orw_expect(" ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
543	    orw_expect("\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
544	    orw_expect("\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
545	    orw_expect("\n", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
546	orw_close();
547	return (ret);
548}
549
550T_FUNC(double_quoted_whitespace, "double-quoted whitespace")
551{
552	int ret;
553
554	orw_open();
555	orw_output("\" \" \"\t\" \"\r\" \"\n\"\n");
556	orw_rewind();
557	ret = orw_expect(" ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
558	    orw_expect("\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
559	    orw_expect("\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
560	    orw_expect("\n", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
561	orw_close();
562	return (ret);
563}
564
565T_FUNC(single_quoted_words, "single-quoted words")
566{
567	int ret;
568
569	orw_open();
570	orw_output("'hello world'\n");
571	orw_rewind();
572	ret = orw_expect("hello world", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
573	orw_close();
574	return (ret);
575}
576
577T_FUNC(double_quoted_words, "double-quoted words")
578{
579	int ret;
580
581	orw_open();
582	orw_output("\"hello world\"\n");
583	orw_rewind();
584	ret = orw_expect("hello world", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
585	orw_close();
586	return (ret);
587}
588
589
590/***************************************************************************
591 * Combinations of escape and quotes
592 */
593
594T_FUNC(escaped_single_quote,
595    "escaped single quote")
596{
597	int ret;
598
599	orw_open();
600	orw_output("\\'\n");
601	orw_rewind();
602	ret = orw_expect("'", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
603	orw_close();
604	return (ret);
605}
606
607T_FUNC(escaped_double_quote,
608    "escaped double quote")
609{
610	int ret;
611
612	orw_open();
613	orw_output("\\\"\n");
614	orw_rewind();
615	ret = orw_expect("\"", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
616	orw_close();
617	return (ret);
618}
619
620T_FUNC(escaped_whitespace_within_single_quotes,
621    "escaped whitespace within single quotes")
622{
623	int ret;
624
625	orw_open();
626	orw_output("'\\ ' '\\\t' '\\\r' '\\\n'\n");
627	orw_rewind();
628	ret = orw_expect("\\ ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
629	    orw_expect("\\\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
630	    orw_expect("\\\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
631	    orw_expect("\\\n", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
632	orw_close();
633	return (ret);
634}
635
636T_FUNC(escaped_whitespace_within_double_quotes,
637    "escaped whitespace within double quotes")
638{
639	int ret;
640
641	orw_open();
642	orw_output("\"\\ \" \"\\\t\" \"\\\r\" \"\\\n\"\n");
643	orw_rewind();
644	ret = orw_expect("\\ ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
645	    orw_expect("\\\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
646	    orw_expect("\\\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
647	    /* this last one is a line continuation */
648	    orw_expect("", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
649	orw_close();
650	return (ret);
651}
652
653T_FUNC(escaped_letter_within_single_quotes,
654    "escaped letter within single quotes")
655{
656	int ret;
657
658	orw_open();
659	orw_output("'\\z'\n");
660	orw_rewind();
661	ret = orw_expect("\\z", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
662	orw_close();
663	return (ret);
664}
665
666T_FUNC(escaped_letter_within_double_quotes,
667    "escaped letter within double quotes")
668{
669	int ret;
670
671	orw_open();
672	orw_output("\"\\z\"\n");
673	orw_rewind();
674	ret = orw_expect("\\z", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
675	orw_close();
676	return (ret);
677}
678
679T_FUNC(escaped_escape_within_single_quotes,
680    "escaped escape within single quotes")
681{
682	int ret;
683
684	orw_open();
685	orw_output("'\\\\'\n");
686	orw_rewind();
687	ret = orw_expect("\\\\", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
688	orw_close();
689	return (ret);
690}
691
692T_FUNC(escaped_escape_within_double_quotes,
693    "escaped escape within double quotes")
694{
695	int ret;
696
697	orw_open();
698	orw_output("\"\\\\\"\n");
699	orw_rewind();
700	ret = orw_expect("\\", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
701	orw_close();
702	return (ret);
703}
704
705T_FUNC(escaped_single_quote_within_single_quotes,
706    "escaped single quote within single quotes")
707{
708	int ret;
709
710	orw_open();
711	orw_output("'\\''\n");
712	orw_rewind();
713	ret = orw_expect(NULL, 1 /*lines*/, 1 /*eof*/, 0 /*eol*/);
714	orw_close();
715	return (ret);
716}
717
718T_FUNC(escaped_double_quote_within_single_quotes,
719    "escaped double quote within single quotes")
720{
721	int ret;
722
723	orw_open();
724	orw_output("'\\\"'\n");
725	orw_rewind();
726	ret = orw_expect("\\\"", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
727	orw_close();
728	return (ret);
729}
730
731T_FUNC(escaped_single_quote_within_double_quotes,
732    "escaped single quote within double quotes")
733{
734	int ret;
735
736	orw_open();
737	orw_output("\"\\'\"\n");
738	orw_rewind();
739	ret = orw_expect("\\'", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
740	orw_close();
741	return (ret);
742}
743
744T_FUNC(escaped_double_quote_within_double_quotes,
745    "escaped double quote within double quotes")
746{
747	int ret;
748
749	orw_open();
750	orw_output("\"\\\"\"\n");
751	orw_rewind();
752	ret = orw_expect("\"", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
753	orw_close();
754	return (ret);
755}
756
757
758/***************************************************************************
759 * Boilerplate
760 */
761
762const struct t_test *t_plan[] = {
763	T(empty_input),
764	T(empty_line),
765	T(single_whitespace),
766	T(multiple_whitespace),
767	T(comment),
768	T(whitespace_before_comment),
769
770	T(single_word),
771	T(single_whitespace_before_word),
772	T(double_whitespace_before_word),
773	T(single_whitespace_after_word),
774	T(double_whitespace_after_word),
775	T(comment_after_word),
776	T(word_containing_hash),
777	T(two_words),
778
779	T(naked_escape),
780	T(escaped_escape),
781	T(escaped_whitespace),
782	T(escaped_newline_before_word),
783	T(escaped_newline_within_word),
784	T(escaped_newline_after_word),
785	T(escaped_letter),
786
787	T(naked_single_quote),
788	T(naked_double_quote),
789	T(empty_single_quotes),
790	T(empty_double_quotes),
791	T(single_quotes_within_double_quotes),
792	T(double_quotes_within_single_quotes),
793	T(single_quoted_whitespace),
794	T(double_quoted_whitespace),
795	T(single_quoted_words),
796	T(double_quoted_words),
797
798	T(escaped_single_quote),
799	T(escaped_double_quote),
800	T(escaped_whitespace_within_single_quotes),
801	T(escaped_whitespace_within_double_quotes),
802	T(escaped_letter_within_single_quotes),
803	T(escaped_letter_within_double_quotes),
804	T(escaped_escape_within_single_quotes),
805	T(escaped_escape_within_double_quotes),
806	T(escaped_single_quote_within_single_quotes),
807	T(escaped_double_quote_within_single_quotes),
808	T(escaped_single_quote_within_double_quotes),
809	T(escaped_double_quote_within_double_quotes),
810
811	NULL
812};
813
814const struct t_test **
815t_prepare(int argc, char *argv[])
816{
817
818	(void)argc;
819	(void)argv;
820	snprintf(filename, sizeof filename, "%s.%d.tmp", t_progname, getpid());
821	if (filename == NULL)
822		err(1, "asprintf()");
823	return (t_plan);
824}
825
826void
827t_cleanup(void)
828{
829}
830