source: trunk/minix/test/test21.c@ 10

Last change on this file since 10 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a
File size: 19.5 KB
Line 
1/* POSIX test program (21). Author: Andy Tanenbaum */
2
3/* The following POSIX calls are tested:
4 *
5 * rename(), mkdir(), rmdir()
6 */
7
8#include <sys/types.h>
9#include <sys/stat.h>
10#include <errno.h>
11#include <fcntl.h>
12#include <limits.h>
13#include <stdlib.h>
14#include <string.h>
15#include <unistd.h>
16#include <stdio.h>
17
18#define ITERATIONS 1
19#define MAX_ERROR 4
20
21int subtest, errct;
22
23_PROTOTYPE(int main, (int argc, char *argv []));
24_PROTOTYPE(void test21a, (void));
25_PROTOTYPE(void test21b, (void));
26_PROTOTYPE(void test21c, (void));
27_PROTOTYPE(void test21d, (void));
28_PROTOTYPE(void test21e, (void));
29_PROTOTYPE(void test21f, (void));
30_PROTOTYPE(void test21g, (void));
31_PROTOTYPE(void test21h, (void));
32_PROTOTYPE(void test21i, (void));
33_PROTOTYPE(void test21k, (void));
34_PROTOTYPE(void test21l, (void));
35_PROTOTYPE(void test21m, (void));
36_PROTOTYPE(void test21n, (void));
37_PROTOTYPE(void test21o, (void));
38_PROTOTYPE(int get_link, (char *name));
39_PROTOTYPE(void e, (int n));
40_PROTOTYPE(void quit, (void));
41
42int main(argc, argv)
43int argc;
44char *argv[];
45{
46
47 int i, m = 0xFFFF;
48
49 sync();
50 if (geteuid() == 0 || getuid() == 0) {
51 printf("Test 21 cannot run as root; test aborted\n");
52 exit(1);
53 }
54
55 if (argc == 2) m = atoi(argv[1]);
56 printf("Test 21 ");
57 fflush(stdout);
58
59 system("rm -rf DIR_21; mkdir DIR_21");
60 chdir("DIR_21");
61
62 for (i = 0; i < ITERATIONS; i++) {
63 if (m & 00001) test21a();
64 if (m & 00002) test21b();
65 if (m & 00004) test21c();
66 if (m & 00010) test21d();
67 if (m & 00020) test21e();
68 if (m & 00040) test21f();
69 if (m & 01000) test21g();
70 if (m & 00200) test21h();
71 if (m & 00400) test21i();
72 if (m & 01000) test21k();
73 if (m & 02000) test21l();
74 if (m & 04000) test21m();
75 if (m & 010000) test21n();
76 if (m & 020000) test21o();
77 }
78 quit();
79 return(-1); /* impossible */
80}
81
82void test21a()
83{
84/* Test rename(). */
85
86 int fd, fd2;
87 char buf[PATH_MAX+1], buf1[PATH_MAX+1], buf2[PATH_MAX+1];
88 struct stat stat1, stat2;
89
90 subtest = 1;
91
92 unlink("A1"); /* get rid of it if it exists */
93 unlink("A2"); /* get rid of it if it exists */
94 unlink("A3"); /* get rid of it if it exists */
95 unlink("A4"); /* get rid of it if it exists */
96 unlink("A5"); /* get rid of it if it exists */
97 unlink("A6"); /* get rid of it if it exists */
98 unlink("A7"); /* get rid of it if it exists */
99
100 /* Basic test. Rename A1 to A2 and then A2 to A3. */
101 if ( (fd=creat("A1", 0666)) < 0) e(1);
102 if (write(fd, buf, 20) != 20) e(2);
103 if (close(fd) < 0) e(3);
104 if (rename("A1", "A2") < 0) e(4);
105 if ( (fd=open("A2", O_RDONLY)) < 0) e(5);
106 if (rename("A2", "A3") < 0) e(6);
107 if ( (fd2=open("A3", O_RDONLY)) < 0) e(7);
108 if (close(fd) != 0) e(8);
109 if (close(fd2) != 0) e(9);
110 if (unlink("A3") != 0) e(10);
111
112 /* Now get the absolute path name of the current directory using getcwd()
113 * and use it to test RENAME using different combinations of relative and
114 * absolute path names.
115 */
116 if (getcwd(buf, PATH_MAX) == (char *) NULL) e(11);
117 if ( (fd = creat("A4", 0666)) < 0) e(12);
118 if (write(fd, buf, 30) != 30) e(13);
119 if (close(fd) != 0) e(14);
120 strcpy(buf1, buf);
121 strcat(buf1, "/A4");
122 if (rename(buf1, "A5") != 0) e(15); /* rename(absolute, relative) */
123 if (access("A5", 6) != 0) e(16); /* use access to see if file exists */
124 strcpy(buf2, buf);
125 strcat(buf2, "/A6");
126 if (rename("A5", buf2) != 0) e(17); /* rename(relative, absolute) */
127 if (access("A6", 6) != 0) e(18);
128 if (access(buf2, 6) != 0) e(19);
129 strcpy(buf1, buf);
130 strcat(buf1, "/A6");
131 strcpy(buf2, buf);
132 strcat(buf2, "/A7");
133 if (rename(buf1, buf2) != 0) e(20); /* rename(absolute, absolute) */
134 if (access("A7", 6) != 0) e(21);
135 if (access(buf2, 6) != 0) e(22);
136
137 /* Try renaming using names like "./A8" */
138 if (rename("A7", "./A8") != 0) e(23);
139 if (access("A8", 6) != 0) e(24);
140 if (rename("./A8", "A9") != 0) e(25);
141 if (access("A9", 6) != 0) e(26);
142 if (rename("./A9", "./A10") != 0) e(27);
143 if (access("A10", 6) != 0) e(28);
144 if (access("./A10", 6) != 0) e(29);
145 if (unlink("A10") != 0) e(30);
146
147 /* Now see if directories can be renamed. */
148 if (system("rm -rf ?uzzy scsi") != 0) e(31);
149 if (system("mkdir fuzzy") != 0) e(32);
150 if (rename("fuzzy", "wuzzy") != 0) e(33);
151 if ( (fd=creat("wuzzy/was_a_bear", 0666)) < 0) e(34);
152 if (access("wuzzy/was_a_bear", 6) != 0) e(35);
153 if (unlink("wuzzy/was_a_bear") != 0) e(36);
154 if (close(fd) != 0) e(37);
155 if (rename("wuzzy", "buzzy") != 0) e(38);
156 if (system("rmdir buzzy") != 0) e(39);
157
158 /* Now start testing the case that 'new' exists. */
159 if ( (fd = creat("horse", 0666)) < 0) e(40);
160 if ( (fd2 = creat("sheep", 0666)) < 0) e(41);
161 if (write(fd, buf, PATH_MAX) != PATH_MAX) e(42);
162 if (write(fd2, buf, 23) != 23) e(43);
163 if (stat("horse", &stat1) != 0) e(44);
164 if (rename("horse", "sheep") != 0) e(45);
165 if (stat("sheep", &stat2) != 0) e(46);
166 if (stat1.st_dev != stat2.st_dev) e(47);
167 if (stat1.st_ino != stat2.st_ino) e(48);
168 if (stat2.st_size != PATH_MAX) e(49);
169 if (access("horse", 6) == 0) e(50);
170 if (close(fd) != 0) e(51);
171 if (close(fd2) != 0) e(52);
172 if (rename("sheep", "sheep") != 0) e(53);
173 if (unlink("sheep") != 0) e(54);
174
175 /* Now try renaming something to a directory that already exists. */
176 if (system("mkdir fuzzy wuzzy") != 0) e(55);
177 if ( (fd = creat("fuzzy/was_a_bear", 0666)) < 0) e(56);
178 if (close(fd) != 0) e(57);
179 if (rename("fuzzy", "wuzzy") != 0) e(58); /* 'new' is empty dir */
180 if (system("mkdir scsi") != 0) e(59);
181 if (rename("scsi", "wuzzy") == 0) e(60); /* 'new' is full dir */
182 if (errno != EEXIST && errno != ENOTEMPTY) e(61);
183
184 /* Test 14 character names--always tricky. */
185 if (rename("wuzzy/was_a_bear", "wuzzy/was_not_a_bear") != 0) e(62);
186 if (access("wuzzy/was_not_a_bear", 6) != 0) e(63);
187 if (rename("wuzzy/was_not_a_bear", "wuzzy/was_not_a_duck") != 0) e(64);
188 if (access("wuzzy/was_not_a_duck", 6) != 0) e(65);
189 if (rename("wuzzy/was_not_a_duck", "wuzzy/was_a_bird") != 0) e(65);
190 if (access("wuzzy/was_a_bird", 6) != 0) e(66);
191
192 /* Test moves between directories. */
193 if (rename("wuzzy/was_a_bird", "beast") != 0) e(67);
194 if (access("beast", 6) != 0) e(68);
195 if (rename("beast", "wuzzy/was_a_cat") != 0) e(69);
196 if (access("wuzzy/was_a_cat", 6) != 0) e(70);
197
198 /* Test error conditions. 'scsi' and 'wuzzy/was_a_cat' exist now. */
199 if (rename("wuzzy/was_a_cat", "wuzzy/was_a_dog") != 0) e(71);
200 if (access("wuzzy/was_a_dog", 6) != 0) e(72);
201 if (chmod("wuzzy", 0) != 0) e(73);
202
203 errno = 0;
204 if (rename("wuzzy/was_a_dog", "wuzzy/was_a_pig") != -1) e(74);
205 if (errno != EACCES) e(75);
206
207 errno = 0;
208 if (rename("wuzzy/was_a_dog", "doggie") != -1) e(76);
209 if (errno != EACCES) e(77);
210
211 errno = 0;
212 if ( (fd = creat("beast", 0666)) < 0) e(78);
213 if (close(fd) != 0) e(79);
214 if (rename("beast", "wuzzy/was_a_twit") != -1) e(80);
215 if (errno != EACCES) e(81);
216
217 errno = 0;
218 if (rename("beast", "wuzzy") != -1) e(82);
219 if (errno != EISDIR) e(83);
220
221 errno = 0;
222 if (rename("beest", "baste") != -1) e(84);
223 if (errno != ENOENT) e(85);
224
225 errno = 0;
226 if (rename("wuzzy", "beast") != -1) e(86);
227 if (errno != ENOTDIR) e(87);
228
229 /* Test prefix rule. */
230 errno = 0;
231 if (chmod("wuzzy", 0777) != 0) e(88);
232 if (unlink("wuzzy/was_a_dog") != 0) e(89);
233 strcpy(buf1, buf);
234 strcat(buf1, "/wuzzy");
235 if (rename(buf, buf1) != -1) e(90);
236 if (errno != EINVAL) e(91);
237
238 if (system("rm -rf wuzzy beast scsi") != 0) e(92);
239}
240
241
242
243void test21b()
244{
245/* Test mkdir() and rmdir(). */
246
247 int i;
248 char name[3];
249 struct stat statbuf;
250
251 subtest = 2;
252
253 /* Simple stuff. */
254 if (mkdir("D1", 0700) != 0) e(1);
255 if (stat("D1", &statbuf) != 0) e(2);
256 if (!S_ISDIR(statbuf.st_mode)) e(3);
257 if ( (statbuf.st_mode & 0777) != 0700) e(4);
258 if (rmdir("D1") != 0) e(5);
259
260 /* Make and remove 40 directories. By doing so, the directory has to
261 * grow to 2 blocks. That presents plenty of opportunity for bugs.
262 */
263 name[0] = 'D';
264 name[2] = '\0';
265 for (i = 0; i < 40; i++) {
266 name[1] = 'A' + i;
267 if (mkdir(name, 0700 + i%7) != 0) e(10+i); /* for simplicity */
268 }
269 for (i = 0; i < 40; i++) {
270 name[1] = 'A' + i;
271 if (rmdir(name) != 0) e(50+i);
272 }
273}
274
275void test21c()
276{
277/* Test mkdir() and rmdir(). */
278
279 subtest = 3;
280
281 if (mkdir("D1", 0777) != 0) e(1);
282 if (mkdir("D1/D2", 0777) != 0) e(2);
283 if (mkdir("D1/D2/D3", 0777) != 0) e(3);
284 if (mkdir("D1/D2/D3/D4", 0777) != 0) e(4);
285 if (mkdir("D1/D2/D3/D4/D5", 0777) != 0) e(5);
286 if (mkdir("D1/D2/D3/D4/D5/D6", 0777) != 0) e(6);
287 if (mkdir("D1/D2/D3/D4/D5/D6/D7", 0777) != 0) e(7);
288 if (mkdir("D1/D2/D3/D4/D5/D6/D7/D8", 0777) != 0) e(8);
289 if (mkdir("D1/D2/D3/D4/D5/D6/D7/D8/D9", 0777) != 0) e(9);
290 if (access("D1/D2/D3/D4/D5/D6/D7/D8/D9", 7) != 0) e(10);
291 if (rmdir("D1/D2/D3/D4/D5/D6/D7/D8/D9") != 0) e(11);
292 if (rmdir("D1/D2/D3/D4/D5/D6/D7/D8") != 0) e(12);
293 if (rmdir("D1/D2/D3/D4/D5/D6/D7") != 0) e(13);
294 if (rmdir("D1/D2/D3/D4/D5/D6") != 0) e(11);
295 if (rmdir("D1/D2/D3/D4/D5") != 0) e(13);
296 if (rmdir("D1/D2/D3/D4") != 0) e(14);
297 if (rmdir("D1/D2/D3") != 0) e(15);
298 if (rmdir("D1/D2") != 0) e(16);
299 if (rmdir("D1") != 0) e(17);
300}
301
302void test21d()
303{
304/* Test making directories with files and directories in them. */
305
306 int fd1, fd2, fd3, fd4, fd5, fd6, fd7, fd8, fd9;
307
308 subtest = 4;
309
310 if (mkdir("D1", 0777) != 0) e(1);
311 if (mkdir("D1/D2", 0777) != 0) e(2);
312 if (mkdir("./D1/D3", 0777) != 0) e(3);
313 if (mkdir("././D1/D4", 0777) != 0) e(4);
314 if ( (fd1 = creat("D1/D2/x", 0700)) < 0) e(5);
315 if ( (fd2 = creat("D1/D2/y", 0700)) < 0) e(6);
316 if ( (fd3 = creat("D1/D2/z", 0700)) < 0) e(7);
317 if ( (fd4 = creat("D1/D3/x", 0700)) < 0) e(8);
318 if ( (fd5 = creat("D1/D3/y", 0700)) < 0) e(9);
319 if ( (fd6 = creat("D1/D3/z", 0700)) < 0) e(10);
320 if ( (fd7 = creat("D1/D4/x", 0700)) < 0) e(11);
321 if ( (fd8 = creat("D1/D4/y", 0700)) < 0) e(12);
322 if ( (fd9 = creat("D1/D4/z", 0700)) < 0) e(13);
323 if (unlink("D1/D2/z") != 0) e(14);
324 if (unlink("D1/D2/y") != 0) e(15);
325 if (unlink("D1/D2/x") != 0) e(16);
326 if (unlink("D1/D3/x") != 0) e(17);
327 if (unlink("D1/D3/z") != 0) e(18);
328 if (unlink("D1/D3/y") != 0) e(19);
329 if (unlink("D1/D4/y") != 0) e(20);
330 if (unlink("D1/D4/z") != 0) e(21);
331 if (unlink("D1/D4/x") != 0) e(22);
332 if (rmdir("D1/D2") != 0) e(23);
333 if (rmdir("D1/D3") != 0) e(24);
334 if (rmdir("D1/D4") != 0) e(25);
335 if (rmdir("D1") != 0) e(26);
336 if (close(fd1) != 0) e(27);
337 if (close(fd2) != 0) e(28);
338 if (close(fd3) != 0) e(29);
339 if (close(fd4) != 0) e(30);
340 if (close(fd5) != 0) e(31);
341 if (close(fd6) != 0) e(32);
342 if (close(fd7) != 0) e(33);
343 if (close(fd8) != 0) e(34);
344 if (close(fd9) != 0) e(35);
345
346}
347
348void test21e()
349{
350/* Test error conditions. */
351
352 subtest = 5;
353
354 if (mkdir("D1", 0677) != 0) e(1);
355 errno = 0;
356 if (mkdir("D1/D2", 0777) != -1) e(2);
357 if (errno != EACCES) e(3);
358 if (chmod ("D1", 0577) != 0) e(4);
359 errno = 0;
360 if (mkdir("D1/D2", 0777) != -1) e(5);
361 if (errno != EACCES) e(6);
362 if (chmod ("D1", 0777) != 0) e(7);
363 errno = 0;
364 if (mkdir("D1", 0777) != -1) e(8);
365 if (errno != EEXIST) e(9);
366#if NAME_MAX == 14
367 if (mkdir("D1/ABCDEFGHIJKLMNOPQRSTUVWXYZ", 0777) != 0) e(10);
368 if (access("D1/ABCDEFGHIJKLMN", 7 ) != 0) e(11);
369 if (rmdir("D1/ABCDEFGHIJKLMNOPQ") != 0) e(12);
370 if (access("D1/ABCDEFGHIJKLMN", 7 ) != -1) e(13);
371#endif
372 errno = 0;
373 if (mkdir("D1/D2/x", 0777) != -1) e(14);
374 if (errno != ENOENT) e(15);
375
376 /* A particularly nasty test is when the parent has mode 0. Although
377 * this is unlikely to work, it had better not muck up the file system
378 */
379 if (mkdir("D1/D2", 0777) != 0) e(16);
380 if (chmod("D1", 0) != 0) e(17);
381 errno = 0;
382 if (rmdir("D1/D2") != -1) e(18);
383 if (errno != EACCES) e(19);
384 if (chmod("D1", 0777) != 0) e(20);
385 if (rmdir("D1/D2") != 0) e(21);
386 if (rmdir("D1") != 0) e(22);
387}
388
389void test21f()
390{
391/* The rename() function affects the link count of all the files and
392 * directories it goes near. Test to make sure it gets everything ok.
393 * There are four cases:
394 *
395 * 1. rename("d1/file1", "d1/file2"); - rename file without moving it
396 * 2. rename("d1/file1", "d2/file2"); - move a file to another dir
397 * 3. rename("d1/dir1", "d2/dir2"); - rename a dir without moving it
398 * 4. rename("d1/dir1", "d2/dir2"); - move a dir to another dir
399 *
400 * Furthermore, a distinction has to be made when the target file exists
401 * and when it does not exist, giving 8 cases in all.
402 */
403
404 int fd, D1_before, D1_after, x_link, y_link;
405
406 /* Test case 1: renaming a file within the same directory. */
407 subtest = 6;
408 if (mkdir("D1", 0777) != 0) e(1);
409 if ( (fd = creat("D1/x", 0777)) < 0) e(2);
410 if (close(fd) != 0) e(3);
411 D1_before = get_link("D1");
412 x_link = get_link("D1/x");
413 if (rename("D1/x", "D1/y") != 0) e(4);
414 y_link = get_link("D1/y");
415 D1_after = get_link("D1");
416 if (D1_before != 2) e(5);
417 if (D1_after != 2) e(6);
418 if (x_link != 1) e(7);
419 if (y_link != 1) e(8);
420 if (access("D1/y", 7) != 0) e(9);
421 if (unlink("D1/y") != 0) e(10);
422 if (rmdir("D1") != 0) e(11);
423}
424
425void test21g()
426{
427 int fd, D1_before, D1_after, D2_before, D2_after, x_link, y_link;
428
429 /* Test case 2: move a file to a new directory. */
430 subtest = 7;
431 if (mkdir("D1", 0777) != 0) e(1);
432 if (mkdir("D2", 0777) != 0) e(2);
433 if ( (fd = creat("D1/x", 0777)) < 0) e(3);
434 if (close(fd) != 0) e(4);
435 D1_before = get_link("D1");
436 D2_before = get_link("D2");
437 x_link = get_link("D1/x");
438 if (rename("D1/x", "D2/y") != 0) e(5);
439 y_link = get_link("D2/y");
440 D1_after = get_link("D1");
441 D2_after = get_link("D2");
442 if (D1_before != 2) e(6);
443 if (D2_before != 2) e(7);
444 if (D1_after != 2) e(8);
445 if (D2_after != 2) e(9);
446 if (x_link != 1) e(10);
447 if (y_link != 1) e(11);
448 if (access("D2/y", 7) != 0) e(12);
449 if (unlink("D2/y") != 0) e(13);
450 if (rmdir("D1") != 0) e(14);
451 if (rmdir("D2") != 0) e(15);
452}
453
454void test21h()
455{
456 int D1_before, D1_after, x_link, y_link;
457
458 /* Test case 3: renaming a directory within the same directory. */
459 subtest = 8;
460 if (mkdir("D1", 0777) != 0) e(1);
461 if (mkdir("D1/X", 0777) != 0) e(2);
462 D1_before = get_link("D1");
463 x_link = get_link("D1/X");
464 if (rename("D1/X", "D1/Y") != 0) e(3);
465 y_link = get_link("D1/Y");
466 D1_after = get_link("D1");
467 if (D1_before != 3) e(4);
468 if (D1_after != 3) e(5);
469 if (x_link != 2) e(6);
470 if (y_link != 2) e(7);
471 if (access("D1/Y", 7) != 0) e(8);
472 if (rmdir("D1/Y") != 0) e(9);
473 if (get_link("D1") != 2) e(10);
474 if (rmdir("D1") != 0) e(11);
475}
476
477void test21i()
478{
479 int D1_before, D1_after, D2_before, D2_after, x_link, y_link;
480
481 /* Test case 4: move a directory to a new directory. */
482 subtest = 9;
483 if (mkdir("D1", 0777) != 0) e(1);
484 if (mkdir("D2", 0777) != 0) e(2);
485 if (mkdir("D1/X", 0777) != 0) e(3);
486 D1_before = get_link("D1");
487 D2_before = get_link("D2");
488 x_link = get_link("D1/X");
489 if (rename("D1/X", "D2/Y") != 0) e(4);
490 y_link = get_link("D2/Y");
491 D1_after = get_link("D1");
492 D2_after = get_link("D2");
493 if (D1_before != 3) e(5);
494 if (D2_before != 2) e(6);
495 if (D1_after != 2) e(7);
496 if (D2_after != 3) e(8);
497 if (x_link != 2) e(9);
498 if (y_link != 2) e(10);
499 if (access("D2/Y", 7) != 0) e(11);
500 if (rename("D2/Y", "D1/Z") != 0) e(12);
501 if (get_link("D1") != 3) e(13);
502 if (get_link("D2") != 2) e(14);
503 if (rmdir("D1/Z") != 0) e(15);
504 if (get_link("D1") != 2) e(16);
505 if (rmdir("D1") != 0) e(17);
506 if (rmdir("D2") != 0) e(18);
507}
508
509void test21k()
510{
511/* Now test the same 4 cases, except when the target exists. */
512
513 int fd, D1_before, D1_after, x_link, y_link;
514
515 /* Test case 5: renaming a file within the same directory. */
516 subtest = 10;
517 if (mkdir("D1", 0777) != 0) e(1);
518 if ( (fd = creat("D1/x", 0777)) < 0) e(2);
519 if (close(fd) != 0) e(3);
520 if ( (fd = creat("D1/y", 0777)) < 0) e(3);
521 if (close(fd) != 0) e(4);
522 D1_before = get_link("D1");
523 x_link = get_link("D1/x");
524 if (rename("D1/x", "D1/y") != 0) e(5);
525 y_link = get_link("D1/y");
526 D1_after = get_link("D1");
527 if (D1_before != 2) e(6);
528 if (D1_after != 2) e(7);
529 if (x_link != 1) e(8);
530 if (y_link != 1) e(9);
531 if (access("D1/y", 7) != 0) e(10);
532 if (unlink("D1/y") != 0) e(11);
533 if (rmdir("D1") != 0) e(12);
534}
535
536void test21l()
537{
538 int fd, D1_before, D1_after, D2_before, D2_after, x_link, y_link;
539
540 /* Test case 6: move a file to a new directory. */
541 subtest = 11;
542 if (mkdir("D1", 0777) != 0) e(1);
543 if (mkdir("D2", 0777) != 0) e(2);
544 if ( (fd = creat("D1/x", 0777)) < 0) e(3);
545 if (close(fd) != 0) e(4);
546 if ( (fd = creat("D2/y", 0777)) < 0) e(5);
547 if (close(fd) != 0) e(6);
548 D1_before = get_link("D1");
549 D2_before = get_link("D2");
550 x_link = get_link("D1/x");
551 if (rename("D1/x", "D2/y") != 0) e(7);
552 y_link = get_link("D2/y");
553 D1_after = get_link("D1");
554 D2_after = get_link("D2");
555 if (D1_before != 2) e(8);
556 if (D2_before != 2) e(9);
557 if (D1_after != 2) e(10);
558 if (D2_after != 2) e(11);
559 if (x_link != 1) e(12);
560 if (y_link != 1) e(13);
561 if (access("D2/y", 7) != 0) e(14);
562 if (unlink("D2/y") != 0) e(15);
563 if (rmdir("D1") != 0) e(16);
564 if (rmdir("D2") != 0) e(17);
565}
566
567void test21m()
568{
569 int D1_before, D1_after, x_link, y_link;
570
571 /* Test case 7: renaming a directory within the same directory. */
572 subtest = 12;
573 if (mkdir("D1", 0777) != 0) e(1);
574 if (mkdir("D1/X", 0777) != 0) e(2);
575 if (mkdir("D1/Y", 0777) != 0) e(3);
576 D1_before = get_link("D1");
577 x_link = get_link("D1/X");
578 if (rename("D1/X", "D1/Y") != 0) e(4);
579 y_link = get_link("D1/Y");
580 D1_after = get_link("D1");
581 if (D1_before != 4) e(5);
582 if (D1_after != 3) e(6);
583 if (x_link != 2) e(7);
584 if (y_link != 2) e(8);
585 if (access("D1/Y", 7) != 0) e(9);
586 if (rmdir("D1/Y") != 0) e(10);
587 if (get_link("D1") != 2) e(11);
588 if (rmdir("D1") != 0) e(12);
589}
590
591void test21n()
592{
593 int D1_before, D1_after, D2_before, D2_after, x_link, y_link;
594
595 /* Test case 8: move a directory to a new directory. */
596 subtest = 13;
597 if (mkdir("D1", 0777) != 0) e(1);
598 if (mkdir("D2", 0777) != 0) e(2);
599 if (mkdir("D1/X", 0777) != 0) e(3);
600 if (mkdir("D2/Y", 0777) != 0) e(4);
601 D1_before = get_link("D1");
602 D2_before = get_link("D2");
603 x_link = get_link("D1/X");
604 if (rename("D1/X", "D2/Y") != 0) e(5);
605 y_link = get_link("D2/Y");
606 D1_after = get_link("D1");
607 D2_after = get_link("D2");
608 if (D1_before != 3) e(6);
609 if (D2_before != 3) e(7);
610 if (D1_after != 2) e(8);
611 if (D2_after != 3) e(9);
612 if (x_link != 2) e(10);
613 if (y_link != 2) e(11);
614 if (access("D2/Y", 7) != 0) e(12);
615 if (rename("D2/Y", "D1/Z") != 0) e(13);
616 if (get_link("D1") != 3) e(14);
617 if (get_link("D2") != 2) e(15);
618 if (rmdir("D1/Z") != 0) e(16);
619 if (get_link("D1") != 2) e(17);
620 if (rmdir("D1") != 0) e(18);
621 if (rmdir("D2") != 0) e(19);
622}
623
624void test21o()
625{
626 /* Test trying to remove . and .. */
627 subtest = 14;
628 if (mkdir("D1", 0777) != 0) e(1);
629 if (chdir("D1") != 0) e(2);
630 if (rmdir(".") == 0) e(3);
631 if (rmdir("..") == 0) e(4);
632 if (mkdir("D2", 0777) != 0) e(5);
633 if (mkdir("D3", 0777) != 0) e(6);
634 if (mkdir("D4", 0777) != 0) e(7);
635 if (rmdir("D2/../D3/../D4") != 0) e(8); /* legal way to remove D4 */
636 if (rmdir("D2/../D3/../D2/..") == 0) e(9); /* removing self is illegal */
637 if (rmdir("D2/../D3/../D2/../..") == 0) e(10);/* removing parent is illegal*/
638 if (rmdir("../D1/../D1/D3") != 0) e(11); /* legal way to remove D3 */
639 if (rmdir("./D2/../D2") != 0) e(12); /* legal way to remove D2 */
640 if (chdir("..") != 0) e(13);
641 if (rmdir("D1") != 0) e(14);
642}
643
644int get_link(name)
645char *name;
646{
647 struct stat statbuf;
648
649 if (stat(name, &statbuf) != 0) {
650 printf("Unable to stat %s\n", name);
651 errct++;
652 return(-1);
653 }
654 return(statbuf.st_nlink);
655}
656
657void e(n)
658int n;
659{
660 int err_num = errno; /* save errno in case printf clobbers it */
661
662 printf("Subtest %d, error %d errno=%d ", subtest, n, errno);
663 errno = err_num; /* restore errno, just in case */
664 perror("");
665 if (errct++ > MAX_ERROR) {
666 printf("Too many errors; test aborted\n");
667 chdir("..");
668 system("rm -rf DIR*");
669 exit(1);
670 }
671}
672
673void quit()
674{
675 chdir("..");
676 system("rm -rf DIR*");
677
678 if (errct == 0) {
679 printf("ok\n");
680 exit(0);
681 } else {
682 printf("%d errors\n", errct);
683 exit(1);
684 }
685}
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