1 /* SPDX-License-Identifier: GPL-2.0 */
2
3 #define _GNU_SOURCE
4 #define _LARGEFILE64_SOURCE
5
6 /* libc-specific include files
7 * The program may be built in 3 ways:
8 * $(CC) -nostdlib -include /path/to/nolibc.h => NOLIBC already defined
9 * $(CC) -nostdlib -I/path/to/nolibc/sysroot => _NOLIBC_* guards are present
10 * $(CC) with default libc => NOLIBC* never defined
11 */
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <string.h>
15 #include <sys/auxv.h>
16 #include <sys/ioctl.h>
17 #include <sys/mman.h>
18 #include <sys/mount.h>
19 #include <sys/prctl.h>
20 #include <sys/ptrace.h>
21 #include <sys/random.h>
22 #include <sys/reboot.h>
23 #include <sys/resource.h>
24 #include <sys/stat.h>
25 #include <sys/syscall.h>
26 #include <sys/sysmacros.h>
27 #include <sys/time.h>
28 #include <sys/timerfd.h>
29 #include <sys/uio.h>
30 #include <sys/utsname.h>
31 #include <sys/wait.h>
32 #include <dirent.h>
33 #include <errno.h>
34 #include <fcntl.h>
35 #include <poll.h>
36 #include <sched.h>
37 #include <signal.h>
38 #include <stdarg.h>
39 #include <stddef.h>
40 #include <stdint.h>
41 #include <time.h>
42 #include <unistd.h>
43 #include <limits.h>
44 #include <ctype.h>
45
46 #pragma GCC diagnostic ignored "-Wmissing-prototypes"
47
48 #include "nolibc-test-linkage.h"
49
50 /* for the type of int_fast16_t and int_fast32_t, musl differs from glibc and nolibc */
51 #define SINT_MAX_OF_TYPE(type) (((type)1 << (sizeof(type) * 8 - 2)) - (type)1 + ((type)1 << (sizeof(type) * 8 - 2)))
52 #define SINT_MIN_OF_TYPE(type) (-SINT_MAX_OF_TYPE(type) - 1)
53
54 /* will be used to test initialization of environ */
55 static char **test_envp;
56
57 /* will be used to test initialization of argv */
58 static char **test_argv;
59
60 /* will be used to test initialization of argc */
61 static int test_argc;
62
63 /* will be used by some test cases as readable file, please don't write it */
64 static const char *argv0;
65
66 /* will be used by constructor tests */
67 static int constructor_test_value;
68
69 static const int is_nolibc =
70 #ifdef NOLIBC
71 1
72 #else
73 0
74 #endif
75 ;
76
77 /* definition of a series of tests */
78 struct test {
79 const char *name; /* test name */
80 int (*func)(int min, int max); /* handler */
81 };
82
83 #ifndef _NOLIBC_STDLIB_H
itoa(int i)84 char *itoa(int i)
85 {
86 static char buf[12];
87 int ret;
88
89 ret = snprintf(buf, sizeof(buf), "%d", i);
90 return (ret >= 0 && ret < sizeof(buf)) ? buf : "#err";
91 }
92 #endif
93
94 #define CASE_ERR(err) \
95 case err: return #err
96
97 /* returns the error name (e.g. "ENOENT") for common errors, "SUCCESS" for 0,
98 * or the decimal value for less common ones.
99 */
errorname(int err)100 static const char *errorname(int err)
101 {
102 switch (err) {
103 case 0: return "SUCCESS";
104 CASE_ERR(EPERM);
105 CASE_ERR(ENOENT);
106 CASE_ERR(ESRCH);
107 CASE_ERR(EINTR);
108 CASE_ERR(EIO);
109 CASE_ERR(ENXIO);
110 CASE_ERR(E2BIG);
111 CASE_ERR(ENOEXEC);
112 CASE_ERR(EBADF);
113 CASE_ERR(ECHILD);
114 CASE_ERR(EAGAIN);
115 CASE_ERR(ENOMEM);
116 CASE_ERR(EACCES);
117 CASE_ERR(EFAULT);
118 CASE_ERR(ENOTBLK);
119 CASE_ERR(EBUSY);
120 CASE_ERR(EEXIST);
121 CASE_ERR(EXDEV);
122 CASE_ERR(ENODEV);
123 CASE_ERR(ENOTDIR);
124 CASE_ERR(EISDIR);
125 CASE_ERR(EINVAL);
126 CASE_ERR(ENFILE);
127 CASE_ERR(EMFILE);
128 CASE_ERR(ENOTTY);
129 CASE_ERR(ETXTBSY);
130 CASE_ERR(EFBIG);
131 CASE_ERR(ENOSPC);
132 CASE_ERR(ESPIPE);
133 CASE_ERR(EROFS);
134 CASE_ERR(EMLINK);
135 CASE_ERR(EPIPE);
136 CASE_ERR(EDOM);
137 CASE_ERR(ERANGE);
138 CASE_ERR(ENOSYS);
139 CASE_ERR(EOVERFLOW);
140 default:
141 return itoa(err);
142 }
143 }
144
align_result(size_t llen)145 static void align_result(size_t llen)
146 {
147 const size_t align = 64;
148 char buf[align];
149 size_t n;
150
151 if (llen >= align)
152 return;
153
154 n = align - llen;
155 memset(buf, ' ', n);
156 buf[n] = '\0';
157 fputs(buf, stdout);
158 }
159
160 enum RESULT {
161 OK,
162 FAIL,
163 SKIPPED,
164 };
165
result(int llen,enum RESULT r)166 static void result(int llen, enum RESULT r)
167 {
168 const char *msg;
169
170 if (r == OK)
171 msg = " [OK]";
172 else if (r == SKIPPED)
173 msg = "[SKIPPED]";
174 else
175 msg = " [FAIL]";
176
177 align_result(llen);
178 puts(msg);
179 }
180
181 /* The tests below are intended to be used by the macroes, which evaluate
182 * expression <expr>, print the status to stdout, and update the "ret"
183 * variable to count failures. The functions themselves return the number
184 * of failures, thus either 0 or 1.
185 */
186
187 #define EXPECT_ZR(cond, expr) \
188 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_zr(expr, llen); } while (0)
189
190 static __attribute__((unused))
expect_zr(int expr,int llen)191 int expect_zr(int expr, int llen)
192 {
193 int ret = !(expr == 0);
194
195 llen += printf(" = %d ", expr);
196 result(llen, ret ? FAIL : OK);
197 return ret;
198 }
199
200
201 #define EXPECT_NZ(cond, expr) \
202 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_nz(expr, llen); } while (0)
203
204 static __attribute__((unused))
expect_nz(int expr,int llen)205 int expect_nz(int expr, int llen)
206 {
207 int ret = !(expr != 0);
208
209 llen += printf(" = %d ", expr);
210 result(llen, ret ? FAIL : OK);
211 return ret;
212 }
213
214
215 #define EXPECT_EQ(cond, expr, val) \
216 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_eq(expr, llen, val); } while (0)
217
218 static __attribute__((unused))
expect_eq(uint64_t expr,int llen,uint64_t val)219 int expect_eq(uint64_t expr, int llen, uint64_t val)
220 {
221 int ret = !(expr == val);
222
223 llen += printf(" = %lld ", (long long)expr);
224 result(llen, ret ? FAIL : OK);
225 return ret;
226 }
227
228
229 #define EXPECT_NE(cond, expr, val) \
230 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ne(expr, llen, val); } while (0)
231
232 static __attribute__((unused))
expect_ne(int expr,int llen,int val)233 int expect_ne(int expr, int llen, int val)
234 {
235 int ret = !(expr != val);
236
237 llen += printf(" = %d ", expr);
238 result(llen, ret ? FAIL : OK);
239 return ret;
240 }
241
242
243 #define EXPECT_GE(cond, expr, val) \
244 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ge(expr, llen, val); } while (0)
245
246 static __attribute__((unused))
expect_ge(int expr,int llen,int val)247 int expect_ge(int expr, int llen, int val)
248 {
249 int ret = !(expr >= val);
250
251 llen += printf(" = %d ", expr);
252 result(llen, ret ? FAIL : OK);
253 return ret;
254 }
255
256
257 #define EXPECT_GT(cond, expr, val) \
258 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_gt(expr, llen, val); } while (0)
259
260 static __attribute__((unused))
expect_gt(int expr,int llen,int val)261 int expect_gt(int expr, int llen, int val)
262 {
263 int ret = !(expr > val);
264
265 llen += printf(" = %d ", expr);
266 result(llen, ret ? FAIL : OK);
267 return ret;
268 }
269
270
271 #define EXPECT_LE(cond, expr, val) \
272 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_le(expr, llen, val); } while (0)
273
274 static __attribute__((unused))
expect_le(int expr,int llen,int val)275 int expect_le(int expr, int llen, int val)
276 {
277 int ret = !(expr <= val);
278
279 llen += printf(" = %d ", expr);
280 result(llen, ret ? FAIL : OK);
281 return ret;
282 }
283
284
285 #define EXPECT_LT(cond, expr, val) \
286 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_lt(expr, llen, val); } while (0)
287
288 static __attribute__((unused))
expect_lt(int expr,int llen,int val)289 int expect_lt(int expr, int llen, int val)
290 {
291 int ret = !(expr < val);
292
293 llen += printf(" = %d ", expr);
294 result(llen, ret ? FAIL : OK);
295 return ret;
296 }
297
298
299 #define EXPECT_SYSZR(cond, expr) \
300 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syszr(expr, llen); } while (0)
301
302 static __attribute__((unused))
expect_syszr(int expr,int llen)303 int expect_syszr(int expr, int llen)
304 {
305 int ret = 0;
306
307 if (errno == ENOSYS) {
308 llen += printf(" = ENOSYS");
309 result(llen, SKIPPED);
310 } else if (expr) {
311 ret = 1;
312 llen += printf(" = %d %s ", expr, errorname(errno));
313 result(llen, FAIL);
314 } else {
315 llen += printf(" = %d ", expr);
316 result(llen, OK);
317 }
318 return ret;
319 }
320
321
322 #define EXPECT_SYSEQ(cond, expr, val) \
323 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syseq(expr, llen, val); } while (0)
324
325 static __attribute__((unused))
expect_syseq(int expr,int llen,int val)326 int expect_syseq(int expr, int llen, int val)
327 {
328 int ret = 0;
329
330 if (expr != val) {
331 ret = 1;
332 llen += printf(" = %d %s ", expr, errorname(errno));
333 result(llen, FAIL);
334 } else {
335 llen += printf(" = %d ", expr);
336 result(llen, OK);
337 }
338 return ret;
339 }
340
341
342 #define EXPECT_SYSNE(cond, expr, val) \
343 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_sysne(expr, llen, val); } while (0)
344
345 static __attribute__((unused))
expect_sysne(int expr,int llen,int val)346 int expect_sysne(int expr, int llen, int val)
347 {
348 int ret = 0;
349
350 if (errno == ENOSYS) {
351 llen += printf(" = ENOSYS");
352 result(llen, SKIPPED);
353 } else if (expr == val) {
354 ret = 1;
355 llen += printf(" = %d %s ", expr, errorname(errno));
356 result(llen, FAIL);
357 } else {
358 llen += printf(" = %d ", expr);
359 result(llen, OK);
360 }
361 return ret;
362 }
363
364
365 #define EXPECT_SYSER2(cond, expr, expret, experr1, experr2) \
366 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syserr2(expr, expret, experr1, experr2, llen); } while (0)
367
368 #define EXPECT_SYSER(cond, expr, expret, experr) \
369 EXPECT_SYSER2(cond, expr, expret, experr, 0)
370
371 static __attribute__((unused))
expect_syserr2(int expr,int expret,int experr1,int experr2,int llen)372 int expect_syserr2(int expr, int expret, int experr1, int experr2, int llen)
373 {
374 int ret = 0;
375 int _errno = errno;
376
377 llen += printf(" = %d %s ", expr, errorname(_errno));
378 if (errno == ENOSYS) {
379 result(llen, SKIPPED);
380 } else if (expr != expret || (_errno != experr1 && _errno != experr2)) {
381 ret = 1;
382 if (experr2 == 0)
383 llen += printf(" != (%d %s) ", expret, errorname(experr1));
384 else
385 llen += printf(" != (%d %s %s) ", expret, errorname(experr1), errorname(experr2));
386 result(llen, FAIL);
387 } else {
388 result(llen, OK);
389 }
390 return ret;
391 }
392
393
394 #define EXPECT_PTRZR(cond, expr) \
395 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrzr(expr, llen); } while (0)
396
397 static __attribute__((unused))
expect_ptrzr(const void * expr,int llen)398 int expect_ptrzr(const void *expr, int llen)
399 {
400 int ret = 0;
401
402 llen += printf(" = <%p> ", expr);
403 if (expr) {
404 ret = 1;
405 result(llen, FAIL);
406 } else {
407 result(llen, OK);
408 }
409 return ret;
410 }
411
412
413 #define EXPECT_PTRNZ(cond, expr) \
414 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrnz(expr, llen); } while (0)
415
416 static __attribute__((unused))
expect_ptrnz(const void * expr,int llen)417 int expect_ptrnz(const void *expr, int llen)
418 {
419 int ret = 0;
420
421 llen += printf(" = <%p> ", expr);
422 if (!expr) {
423 ret = 1;
424 result(llen, FAIL);
425 } else {
426 result(llen, OK);
427 }
428 return ret;
429 }
430
431 #define EXPECT_PTREQ(cond, expr, cmp) \
432 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptreq(expr, llen, cmp); } while (0)
433
434 static __attribute__((unused))
expect_ptreq(const void * expr,int llen,const void * cmp)435 int expect_ptreq(const void *expr, int llen, const void *cmp)
436 {
437 int ret = 0;
438
439 llen += printf(" = <%p> ", expr);
440 if (expr != cmp) {
441 ret = 1;
442 result(llen, FAIL);
443 } else {
444 result(llen, OK);
445 }
446 return ret;
447 }
448
449 #define EXPECT_PTRNE(cond, expr, cmp) \
450 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrne(expr, llen, cmp); } while (0)
451
452 static __attribute__((unused))
expect_ptrne(const void * expr,int llen,const void * cmp)453 int expect_ptrne(const void *expr, int llen, const void *cmp)
454 {
455 int ret = 0;
456
457 llen += printf(" = <%p> ", expr);
458 if (expr == cmp) {
459 ret = 1;
460 result(llen, FAIL);
461 } else {
462 result(llen, OK);
463 }
464 return ret;
465 }
466
467 #define EXPECT_PTRGE(cond, expr, cmp) \
468 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrge(expr, llen, cmp); } while (0)
469
470 static __attribute__((unused))
expect_ptrge(const void * expr,int llen,const void * cmp)471 int expect_ptrge(const void *expr, int llen, const void *cmp)
472 {
473 int ret = !(expr >= cmp);
474
475 llen += printf(" = <%p> ", expr);
476 result(llen, ret ? FAIL : OK);
477 return ret;
478 }
479
480 #define EXPECT_PTRGT(cond, expr, cmp) \
481 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrgt(expr, llen, cmp); } while (0)
482
483 static __attribute__((unused))
expect_ptrgt(const void * expr,int llen,const void * cmp)484 int expect_ptrgt(const void *expr, int llen, const void *cmp)
485 {
486 int ret = !(expr > cmp);
487
488 llen += printf(" = <%p> ", expr);
489 result(llen, ret ? FAIL : OK);
490 return ret;
491 }
492
493
494 #define EXPECT_PTRLE(cond, expr, cmp) \
495 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrle(expr, llen, cmp); } while (0)
496
497 static __attribute__((unused))
expect_ptrle(const void * expr,int llen,const void * cmp)498 int expect_ptrle(const void *expr, int llen, const void *cmp)
499 {
500 int ret = !(expr <= cmp);
501
502 llen += printf(" = <%p> ", expr);
503 result(llen, ret ? FAIL : OK);
504 return ret;
505 }
506
507
508 #define EXPECT_PTRLT(cond, expr, cmp) \
509 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrlt(expr, llen, cmp); } while (0)
510
511 static __attribute__((unused))
expect_ptrlt(const void * expr,int llen,const void * cmp)512 int expect_ptrlt(const void *expr, int llen, const void *cmp)
513 {
514 int ret = !(expr < cmp);
515
516 llen += printf(" = <%p> ", expr);
517 result(llen, ret ? FAIL : OK);
518 return ret;
519 }
520
521 #define EXPECT_PTRER2(cond, expr, expret, experr1, experr2) \
522 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrerr2(expr, expret, experr1, experr2, llen); } while (0)
523
524 #define EXPECT_PTRER(cond, expr, expret, experr) \
525 EXPECT_PTRER2(cond, expr, expret, experr, 0)
526
527 static __attribute__((unused))
expect_ptrerr2(const void * expr,const void * expret,int experr1,int experr2,int llen)528 int expect_ptrerr2(const void *expr, const void *expret, int experr1, int experr2, int llen)
529 {
530 int ret = 0;
531 int _errno = errno;
532
533 llen += printf(" = <%p> %s ", expr, errorname(_errno));
534 if (expr != expret || (_errno != experr1 && _errno != experr2)) {
535 ret = 1;
536 if (experr2 == 0)
537 llen += printf(" != (<%p> %s) ", expret, errorname(experr1));
538 else
539 llen += printf(" != (<%p> %s %s) ", expret, errorname(experr1), errorname(experr2));
540 result(llen, FAIL);
541 } else {
542 result(llen, OK);
543 }
544 return ret;
545 }
546
547 #define EXPECT_STRZR(cond, expr) \
548 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strzr(expr, llen); } while (0)
549
550 static __attribute__((unused))
expect_strzr(const char * expr,int llen)551 int expect_strzr(const char *expr, int llen)
552 {
553 int ret = 0;
554
555 llen += printf(" = <%s> ", expr ? expr : "(null)");
556 if (expr) {
557 ret = 1;
558 result(llen, FAIL);
559 } else {
560 result(llen, OK);
561 }
562 return ret;
563 }
564
565
566 #define EXPECT_STRNZ(cond, expr) \
567 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strnz(expr, llen); } while (0)
568
569 static __attribute__((unused))
expect_strnz(const char * expr,int llen)570 int expect_strnz(const char *expr, int llen)
571 {
572 int ret = 0;
573
574 llen += printf(" = <%s> ", expr ? expr : "(null)");
575 if (!expr) {
576 ret = 1;
577 result(llen, FAIL);
578 } else {
579 result(llen, OK);
580 }
581 return ret;
582 }
583
584
585 #define EXPECT_STREQ(cond, expr, cmp) \
586 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_streq(expr, llen, cmp); } while (0)
587
588 static __attribute__((unused))
expect_streq(const char * expr,int llen,const char * cmp)589 int expect_streq(const char *expr, int llen, const char *cmp)
590 {
591 int ret = 0;
592
593 llen += printf(" = <%s> ", expr);
594 if (strcmp(expr, cmp) != 0) {
595 ret = 1;
596 result(llen, FAIL);
597 } else {
598 result(llen, OK);
599 }
600 return ret;
601 }
602
603
604 #define EXPECT_STRNE(cond, expr, cmp) \
605 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strne(expr, llen, cmp); } while (0)
606
607 static __attribute__((unused))
expect_strne(const char * expr,int llen,const char * cmp)608 int expect_strne(const char *expr, int llen, const char *cmp)
609 {
610 int ret = 0;
611
612 llen += printf(" = <%s> ", expr);
613 if (strcmp(expr, cmp) == 0) {
614 ret = 1;
615 result(llen, FAIL);
616 } else {
617 result(llen, OK);
618 }
619 return ret;
620 }
621
622 #define EXPECT_STRBUFEQ(cond, expr, buf, val, cmp) \
623 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_str_buf_eq(expr, buf, val, llen, cmp); } while (0)
624
625 static __attribute__((unused))
expect_str_buf_eq(size_t expr,const char * buf,size_t val,int llen,const char * cmp)626 int expect_str_buf_eq(size_t expr, const char *buf, size_t val, int llen, const char *cmp)
627 {
628 llen += printf(" = %lu <%s> ", (unsigned long)expr, buf);
629 if (strcmp(buf, cmp) != 0) {
630 result(llen, FAIL);
631 return 1;
632 }
633 if (expr != val) {
634 result(llen, FAIL);
635 return 1;
636 }
637
638 result(llen, OK);
639 return 0;
640 }
641
642 #define EXPECT_STRTOX(cond, func, input, base, expected, chars, expected_errno) \
643 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strtox(llen, func, input, base, expected, chars, expected_errno); } while (0)
644
645 static __attribute__((unused))
expect_strtox(int llen,void * func,const char * input,int base,intmax_t expected,int expected_chars,int expected_errno)646 int expect_strtox(int llen, void *func, const char *input, int base, intmax_t expected, int expected_chars, int expected_errno)
647 {
648 char *endptr;
649 int actual_errno, actual_chars;
650 intmax_t r;
651
652 errno = 0;
653 if (func == strtol) {
654 r = strtol(input, &endptr, base);
655 } else if (func == strtoul) {
656 r = strtoul(input, &endptr, base);
657 } else {
658 result(llen, FAIL);
659 return 1;
660 }
661 actual_errno = errno;
662 actual_chars = endptr - input;
663
664 llen += printf(" %lld = %lld", (long long)expected, (long long)r);
665 if (r != expected) {
666 result(llen, FAIL);
667 return 1;
668 }
669 if (expected_chars == -1) {
670 if (*endptr != '\0') {
671 result(llen, FAIL);
672 return 1;
673 }
674 } else if (expected_chars != actual_chars) {
675 result(llen, FAIL);
676 return 1;
677 }
678 if (actual_errno != expected_errno) {
679 result(llen, FAIL);
680 return 1;
681 }
682
683 result(llen, OK);
684 return 0;
685 }
686
687 /* declare tests based on line numbers. There must be exactly one test per line. */
688 #define CASE_TEST(name) \
689 case __LINE__: llen += printf("%d %s", test, #name);
690
691 __attribute__((constructor))
constructor1(void)692 static void constructor1(void)
693 {
694 constructor_test_value |= 1 << 0;
695 }
696
697 __attribute__((constructor))
constructor2(int argc,char ** argv,char ** envp)698 static void constructor2(int argc, char **argv, char **envp)
699 {
700 if (argc && argv && envp)
701 constructor_test_value |= 1 << 1;
702 }
703
run_startup(int min,int max)704 int run_startup(int min, int max)
705 {
706 int test;
707 int ret = 0;
708 /* kernel at least passes HOME and TERM, shell passes more */
709 int env_total = 2;
710 /* checking NULL for argv/argv0, environ and _auxv is not enough, let's compare with sbrk(0) or &end */
711 extern char end;
712 char *brk = sbrk(0) != (void *)-1 ? sbrk(0) : &end;
713 /* differ from nolibc, both glibc and musl have no global _auxv */
714 const unsigned long *test_auxv = (void *)-1;
715 #ifdef NOLIBC
716 test_auxv = _auxv;
717 #endif
718
719 for (test = min; test >= 0 && test <= max; test++) {
720 int llen = 0; /* line length */
721
722 /* avoid leaving empty lines below, this will insert holes into
723 * test numbers.
724 */
725 switch (test + __LINE__ + 1) {
726 CASE_TEST(argc); EXPECT_GE(1, test_argc, 1); break;
727 CASE_TEST(argv_addr); EXPECT_PTRGT(1, test_argv, brk); break;
728 CASE_TEST(argv_environ); EXPECT_PTRLT(1, test_argv, environ); break;
729 CASE_TEST(argv_total); EXPECT_EQ(1, environ - test_argv - 1, test_argc ?: 1); break;
730 CASE_TEST(argv0_addr); EXPECT_PTRGT(1, argv0, brk); break;
731 CASE_TEST(argv0_str); EXPECT_STRNZ(1, argv0 > brk ? argv0 : NULL); break;
732 CASE_TEST(argv0_len); EXPECT_GE(1, argv0 > brk ? strlen(argv0) : 0, 1); break;
733 CASE_TEST(environ_addr); EXPECT_PTRGT(1, environ, brk); break;
734 CASE_TEST(environ_envp); EXPECT_PTREQ(1, environ, test_envp); break;
735 CASE_TEST(environ_auxv); EXPECT_PTRLT(test_auxv != (void *)-1, environ, test_auxv); break;
736 CASE_TEST(environ_total); EXPECT_GE(test_auxv != (void *)-1, (void *)test_auxv - (void *)environ - 1, env_total); break;
737 CASE_TEST(environ_HOME); EXPECT_PTRNZ(1, getenv("HOME")); break;
738 CASE_TEST(auxv_addr); EXPECT_PTRGT(test_auxv != (void *)-1, test_auxv, brk); break;
739 CASE_TEST(auxv_AT_UID); EXPECT_EQ(1, getauxval(AT_UID), getuid()); break;
740 CASE_TEST(constructor); EXPECT_EQ(is_nolibc, constructor_test_value, 0x3); break;
741 CASE_TEST(linkage_errno); EXPECT_PTREQ(1, linkage_test_errno_addr(), &errno); break;
742 CASE_TEST(linkage_constr); EXPECT_EQ(1, linkage_test_constructor_test_value, 0x3); break;
743 case __LINE__:
744 return ret; /* must be last */
745 /* note: do not set any defaults so as to permit holes above */
746 }
747 }
748 return ret;
749 }
750
751
752 /* used by some syscall tests below */
test_getdents64(const char * dir)753 int test_getdents64(const char *dir)
754 {
755 char buffer[4096];
756 int fd, ret;
757 int err;
758
759 ret = fd = open(dir, O_RDONLY | O_DIRECTORY, 0);
760 if (ret < 0)
761 return ret;
762
763 ret = getdents64(fd, (void *)buffer, sizeof(buffer));
764 err = errno;
765 close(fd);
766
767 errno = err;
768 return ret;
769 }
770
test_dirent(void)771 static int test_dirent(void)
772 {
773 int comm = 0, cmdline = 0;
774 struct dirent dirent, *result;
775 DIR *dir;
776 int ret;
777
778 dir = opendir("/proc/self");
779 if (!dir)
780 return 1;
781
782 while (1) {
783 errno = 0;
784 ret = readdir_r(dir, &dirent, &result);
785 if (ret != 0)
786 return 1;
787 if (!result)
788 break;
789
790 if (strcmp(dirent.d_name, "comm") == 0)
791 comm++;
792 else if (strcmp(dirent.d_name, "cmdline") == 0)
793 cmdline++;
794 }
795
796 if (errno)
797 return 1;
798
799 ret = closedir(dir);
800 if (ret)
801 return 1;
802
803 if (comm != 1 || cmdline != 1)
804 return 1;
805
806 return 0;
807 }
808
test_getrandom(void)809 int test_getrandom(void)
810 {
811 uint64_t rng = 0;
812 ssize_t ret;
813
814 ret = getrandom(&rng, sizeof(rng), GRND_NONBLOCK);
815 if (ret == -1 && errno == EAGAIN)
816 return 0; /* No entropy available yet */
817
818 if (ret != sizeof(rng))
819 return ret;
820
821 if (!rng) {
822 errno = EINVAL;
823 return -1;
824 }
825
826 return 0;
827 }
828
test_getpagesize(void)829 int test_getpagesize(void)
830 {
831 int x = getpagesize();
832 int c;
833
834 if (x < 0)
835 return x;
836
837 #if defined(__x86_64__) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)
838 /*
839 * x86 family is always 4K page.
840 */
841 c = (x == 4096);
842 #elif defined(__aarch64__)
843 /*
844 * Linux aarch64 supports three values of page size: 4K, 16K, and 64K
845 * which are selected at kernel compilation time.
846 */
847 c = (x == 4096 || x == (16 * 1024) || x == (64 * 1024));
848 #else
849 /*
850 * Assuming other architectures must have at least 4K page.
851 */
852 c = (x >= 4096);
853 #endif
854
855 return !c;
856 }
857
test_file_stream(void)858 int test_file_stream(void)
859 {
860 FILE *f;
861 int r;
862
863 f = fopen("/dev/null", "r");
864 if (!f)
865 return -1;
866
867 errno = 0;
868 r = fwrite("foo", 1, 3, f);
869 if (r != 0 || errno != EBADF) {
870 fclose(f);
871 return -1;
872 }
873
874 r = fclose(f);
875 if (r == EOF)
876 return -1;
877
878 return 0;
879 }
880
test_file_stream_wsr(void)881 int test_file_stream_wsr(void)
882 {
883 const char dataout[] = "foo";
884 const size_t datasz = sizeof(dataout);
885 char datain[datasz];
886 int fd, r;
887 FILE *f;
888
889 fd = open("/tmp", O_TMPFILE | O_RDWR, 0644);
890 if (fd == -1)
891 return -1;
892
893 f = fdopen(fd, "w+");
894 if (!f)
895 return -1;
896
897 errno = 0;
898 r = fwrite(dataout, 1, datasz, f);
899 if (r != datasz)
900 return -1;
901
902 /* Attempt to read from the file without rewinding,
903 * we should read 0 items.
904 */
905 r = fread(datain, 1, datasz, f);
906 if (r)
907 return -1;
908
909 /* Rewind the file to the start */
910 r = fseek(f, 0, SEEK_SET);
911 if (r)
912 return -1;
913
914 /* Attempt to read back more than was written to
915 * make sure we handle short reads properly.
916 * fread() should return the number of complete items.
917 */
918 r = fread(datain, 1, datasz + 1, f);
919 if (r != datasz)
920 return -1;
921
922 /* Data we read should match the data we just wrote */
923 if (memcmp(datain, dataout, datasz) != 0)
924 return -1;
925
926 r = fclose(f);
927 if (r)
928 return -1;
929
930 return 0;
931 }
932
933 enum fork_type {
934 FORK_STANDARD,
935 FORK_VFORK,
936 };
937
test_fork(enum fork_type type)938 int test_fork(enum fork_type type)
939 {
940 int status;
941 pid_t pid;
942
943 /* flush the printf buffer to avoid child flush it */
944 fflush(stdout);
945 fflush(stderr);
946
947 switch (type) {
948 case FORK_STANDARD:
949 pid = fork();
950 break;
951 case FORK_VFORK:
952 pid = vfork();
953 break;
954 default:
955 return 1;
956 }
957
958 switch (pid) {
959 case -1:
960 return 1;
961
962 case 0:
963 _exit(123);
964
965 default:
966 pid = waitpid(pid, &status, 0);
967
968 return pid == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 123;
969 }
970 }
971
test_stat_timestamps(void)972 int test_stat_timestamps(void)
973 {
974 struct stat st;
975
976 if (sizeof(st.st_atim.tv_sec) != sizeof(st.st_atime))
977 return 1;
978
979 if (stat("/proc/self/", &st) && stat(argv0, &st) && stat("/", &st))
980 return 1;
981
982 if (st.st_atim.tv_sec != st.st_atime || st.st_atim.tv_nsec > 1000000000)
983 return 1;
984
985 if (st.st_mtim.tv_sec != st.st_mtime || st.st_mtim.tv_nsec > 1000000000)
986 return 1;
987
988 if (st.st_ctim.tv_sec != st.st_ctime || st.st_ctim.tv_nsec > 1000000000)
989 return 1;
990
991 return 0;
992 }
993
test_timer(void)994 int test_timer(void)
995 {
996 struct itimerspec timerspec;
997 struct sigevent evp;
998 timer_t timer;
999 int ret;
1000
1001 evp.sigev_notify = SIGEV_NONE;
1002
1003 ret = timer_create(CLOCK_MONOTONIC, &evp, &timer);
1004 if (ret)
1005 return ret;
1006
1007 timerspec = (struct itimerspec) {
1008 .it_value.tv_sec = 1000000,
1009 };
1010 ret = timer_settime(timer, 0, &timerspec, NULL);
1011 if (ret)
1012 goto err;
1013
1014 timerspec = (struct itimerspec) {
1015 .it_value.tv_sec = -1,
1016 .it_value.tv_nsec = -1,
1017 .it_interval.tv_sec = -1,
1018 .it_interval.tv_nsec = -1,
1019 };
1020 ret = timer_gettime(timer, &timerspec);
1021 if (ret)
1022 goto err;
1023
1024 errno = EINVAL;
1025 ret = -1;
1026
1027 if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec)
1028 goto err;
1029
1030 if (timerspec.it_value.tv_sec > 1000000)
1031 goto err;
1032
1033 ret = timer_delete(timer);
1034 if (ret)
1035 return ret;
1036
1037 return 0;
1038
1039 err:
1040 timer_delete(timer);
1041 return ret;
1042 }
1043
test_timerfd(void)1044 int test_timerfd(void)
1045 {
1046 struct itimerspec timerspec;
1047 int timer, ret;
1048
1049 timer = timerfd_create(CLOCK_MONOTONIC, 0);
1050 if (timer == -1)
1051 return -1;
1052
1053 timerspec = (struct itimerspec) {
1054 .it_value.tv_sec = 1000000,
1055 };
1056 ret = timerfd_settime(timer, 0, &timerspec, NULL);
1057 if (ret)
1058 goto err;
1059
1060 timerspec = (struct itimerspec) {
1061 .it_value.tv_sec = -1,
1062 .it_value.tv_nsec = -1,
1063 .it_interval.tv_sec = -1,
1064 .it_interval.tv_nsec = -1,
1065 };
1066 ret = timerfd_gettime(timer, &timerspec);
1067 if (ret)
1068 goto err;
1069
1070 errno = EINVAL;
1071 ret = -1;
1072
1073 if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec)
1074 goto err;
1075
1076 if (timerspec.it_value.tv_sec > 1000000)
1077 goto err;
1078
1079 ret = close(timer);
1080 if (ret)
1081 return ret;
1082
1083 return 0;
1084
1085 err:
1086 close(timer);
1087 return ret;
1088 }
1089
test_uname(void)1090 int test_uname(void)
1091 {
1092 struct utsname buf;
1093 char osrelease[sizeof(buf.release)];
1094 ssize_t r;
1095 int fd;
1096
1097 memset(&buf.domainname, 'P', sizeof(buf.domainname));
1098
1099 if (uname(&buf))
1100 return 1;
1101
1102 if (strncmp("Linux", buf.sysname, sizeof(buf.sysname)))
1103 return 1;
1104
1105 fd = open("/proc/sys/kernel/osrelease", O_RDONLY);
1106 if (fd == -1)
1107 return 1;
1108
1109 r = read(fd, osrelease, sizeof(osrelease));
1110 if (r == -1)
1111 return 1;
1112
1113 close(fd);
1114
1115 if (osrelease[r - 1] == '\n')
1116 r--;
1117
1118 /* Validate one of the later fields to ensure field sizes are correct */
1119 if (strncmp(osrelease, buf.release, r))
1120 return 1;
1121
1122 /* Ensure the field domainname is set, it is missing from struct old_utsname */
1123 if (strnlen(buf.domainname, sizeof(buf.domainname)) == sizeof(buf.domainname))
1124 return 1;
1125
1126 return 0;
1127 }
1128
test_mmap_munmap(void)1129 int test_mmap_munmap(void)
1130 {
1131 int ret, fd, i, page_size;
1132 void *mem;
1133 size_t file_size, length, mem_length;
1134 off_t offset, pa_offset;
1135 struct stat stat_buf;
1136 const char * const files[] = {
1137 "/dev/zero",
1138 "/proc/1/exe", "/proc/self/exe",
1139 argv0,
1140 NULL
1141 };
1142
1143 page_size = getpagesize();
1144 if (page_size < 0)
1145 return 1;
1146
1147 /* find a right file to mmap, existed and accessible */
1148 for (i = 0; files[i] != NULL; i++) {
1149 ret = fd = open(files[i], O_RDONLY);
1150 if (ret == -1)
1151 continue;
1152 else
1153 break;
1154 }
1155 if (ret == -1)
1156 return 1;
1157
1158 ret = stat(files[i], &stat_buf);
1159 if (ret == -1)
1160 goto end;
1161
1162 /* file size of the special /dev/zero is 0, let's assign one manually */
1163 if (i == 0)
1164 file_size = 3*page_size;
1165 else
1166 file_size = stat_buf.st_size;
1167
1168 offset = file_size - 1;
1169 if (offset < 0)
1170 offset = 0;
1171 length = file_size - offset;
1172 pa_offset = offset & ~(page_size - 1);
1173 mem_length = length + offset - pa_offset;
1174
1175 mem = mmap(NULL, mem_length, PROT_READ, MAP_SHARED, fd, pa_offset);
1176 if (mem == MAP_FAILED) {
1177 ret = 1;
1178 goto end;
1179 }
1180
1181 mem = mremap(mem, mem_length, mem_length * 2, MREMAP_MAYMOVE, 0);
1182 if (mem == MAP_FAILED) {
1183 munmap(mem, mem_length);
1184 ret = 1;
1185 goto end;
1186 }
1187
1188 ret = munmap(mem, mem_length * 2);
1189
1190 end:
1191 close(fd);
1192 return !!ret;
1193 }
1194
test_pipe(void)1195 int test_pipe(void)
1196 {
1197 const char *const msg = "hello, nolibc";
1198 int pipefd[2];
1199 char buf[32];
1200 size_t len;
1201
1202 if (pipe(pipefd) == -1)
1203 return 1;
1204
1205 write(pipefd[1], msg, strlen(msg));
1206 close(pipefd[1]);
1207 len = read(pipefd[0], buf, sizeof(buf));
1208 close(pipefd[0]);
1209
1210 if (len != strlen(msg))
1211 return 1;
1212
1213 return !!memcmp(buf, msg, len);
1214 }
1215
test_rlimit(void)1216 int test_rlimit(void)
1217 {
1218 struct rlimit rlim = {
1219 .rlim_cur = 1 << 20,
1220 .rlim_max = 1 << 21,
1221 };
1222 int ret;
1223
1224 ret = setrlimit(RLIMIT_CORE, &rlim);
1225 if (ret)
1226 return -1;
1227
1228 rlim.rlim_cur = 0;
1229 rlim.rlim_max = 0;
1230
1231 ret = getrlimit(RLIMIT_CORE, &rlim);
1232 if (ret)
1233 return -1;
1234
1235 if (rlim.rlim_cur != 1 << 20)
1236 return -1;
1237 if (rlim.rlim_max != 1 << 21)
1238 return -1;
1239
1240 return 0;
1241 }
1242
test_openat(void)1243 int test_openat(void)
1244 {
1245 int dev, null;
1246
1247 dev = openat(AT_FDCWD, "/dev", O_DIRECTORY);
1248 if (dev < 0)
1249 return -1;
1250
1251 null = openat(dev, "null", O_RDONLY);
1252 close(dev);
1253 if (null < 0)
1254 return -1;
1255
1256 close(null);
1257 return 0;
1258 }
1259
test_namespace(void)1260 int test_namespace(void)
1261 {
1262 int original_ns, new_ns, ret;
1263 ino_t original_ns_ino;
1264 struct stat stat_buf;
1265
1266 original_ns = open("/proc/self/ns/uts", O_RDONLY);
1267 if (original_ns == -1)
1268 return -1;
1269
1270 ret = fstat(original_ns, &stat_buf);
1271 if (ret)
1272 goto out;
1273
1274 original_ns_ino = stat_buf.st_ino;
1275
1276 ret = unshare(CLONE_NEWUTS);
1277 if (ret)
1278 goto out;
1279
1280 new_ns = open("/proc/self/ns/uts", O_RDONLY);
1281 if (new_ns == -1) {
1282 ret = new_ns;
1283 goto out;
1284 }
1285
1286 ret = fstat(new_ns, &stat_buf);
1287 close(new_ns);
1288 if (ret)
1289 goto out;
1290
1291 if (stat_buf.st_ino == original_ns_ino) {
1292 errno = EINVAL;
1293 ret = -1;
1294 goto out;
1295 }
1296
1297 ret = setns(original_ns, CLONE_NEWUTS);
1298 if (ret)
1299 goto out;
1300
1301 new_ns = open("/proc/self/ns/uts", O_RDONLY);
1302 if (new_ns == -1) {
1303 ret = new_ns;
1304 goto out;
1305 }
1306
1307 ret = fstat(new_ns, &stat_buf);
1308 if (ret)
1309 goto out;
1310
1311 close(new_ns);
1312
1313 if (stat_buf.st_ino != original_ns_ino) {
1314 errno = EINVAL;
1315 ret = -1;
1316 goto out;
1317 }
1318
1319 ret = 0;
1320
1321 out:
1322 close(original_ns);
1323 return ret;
1324 }
1325
1326 /* Run syscall tests between IDs <min> and <max>.
1327 * Return 0 on success, non-zero on failure.
1328 */
run_syscall(int min,int max)1329 int run_syscall(int min, int max)
1330 {
1331 struct timeval tv;
1332 struct timezone tz;
1333 struct timespec ts;
1334 struct stat stat_buf;
1335 int euid0;
1336 int proc;
1337 int test;
1338 int tmp;
1339 struct iovec iov_one = {
1340 .iov_base = &tmp,
1341 .iov_len = 1,
1342 };
1343 int ret = 0;
1344 void *p1, *p2;
1345 int has_gettid = 1;
1346 int has_brk;
1347
1348 /* <proc> indicates whether or not /proc is mounted */
1349 proc = stat("/proc", &stat_buf) == 0;
1350
1351 /* this will be used to skip certain tests that can't be run unprivileged */
1352 euid0 = geteuid() == 0;
1353
1354 /* from 2.30, glibc provides gettid() */
1355 #if defined(__GLIBC_MINOR__) && defined(__GLIBC__)
1356 has_gettid = __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 30);
1357 #endif
1358
1359 /* on musl setting brk()/sbrk() always fails */
1360 has_brk = brk(0) == 0;
1361
1362 for (test = min; test >= 0 && test <= max; test++) {
1363 int llen = 0; /* line length */
1364
1365 /* avoid leaving empty lines below, this will insert holes into
1366 * test numbers.
1367 */
1368 switch (test + __LINE__ + 1) {
1369 CASE_TEST(access); EXPECT_SYSZR(proc, access("/proc/self", R_OK)); break;
1370 CASE_TEST(access_bad); EXPECT_SYSER(proc, access("/proc/self", W_OK), -1, EPERM); break;
1371 CASE_TEST(clock_getres); EXPECT_SYSZR(1, clock_getres(CLOCK_MONOTONIC, &ts)); break;
1372 CASE_TEST(clock_gettime); EXPECT_SYSZR(1, clock_gettime(CLOCK_MONOTONIC, &ts)); break;
1373 CASE_TEST(clock_settime); EXPECT_SYSER(1, clock_settime(CLOCK_MONOTONIC, &ts), -1, EINVAL); break;
1374 CASE_TEST(getpid); EXPECT_SYSNE(1, getpid(), -1); break;
1375 CASE_TEST(getppid); EXPECT_SYSNE(1, getppid(), -1); break;
1376 CASE_TEST(gettid); EXPECT_SYSNE(has_gettid, gettid(), -1); break;
1377 CASE_TEST(getpgid_self); EXPECT_SYSNE(1, getpgid(0), -1); break;
1378 CASE_TEST(getpgid_bad); EXPECT_SYSER(1, getpgid(-1), -1, ESRCH); break;
1379 CASE_TEST(kill_0); EXPECT_SYSZR(1, kill(getpid(), 0)); break;
1380 CASE_TEST(kill_CONT); EXPECT_SYSZR(1, kill(getpid(), 0)); break;
1381 CASE_TEST(kill_BADPID); EXPECT_SYSER(1, kill(INT_MAX, 0), -1, ESRCH); break;
1382 CASE_TEST(sbrk_0); EXPECT_PTRNE(has_brk, sbrk(0), (void *)-1); break;
1383 CASE_TEST(sbrk); if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(has_brk, (p2 == (void *)-1) || p2 == p1); break;
1384 CASE_TEST(brk); EXPECT_SYSZR(has_brk, brk(sbrk(0))); break;
1385 CASE_TEST(chdir_root); EXPECT_SYSZR(1, chdir("/")); chdir(getenv("PWD")); break;
1386 CASE_TEST(chdir_dot); EXPECT_SYSZR(1, chdir(".")); break;
1387 CASE_TEST(chdir_blah); EXPECT_SYSER(1, chdir("/blah"), -1, ENOENT); break;
1388 CASE_TEST(chmod_argv0); EXPECT_SYSZR(1, chmod(argv0, 0555)); break;
1389 CASE_TEST(chmod_self); EXPECT_SYSER(proc, chmod("/proc/self", 0555), -1, EPERM); break;
1390 CASE_TEST(chown_self); EXPECT_SYSER(proc, chown("/proc/self", 0, 0), -1, EPERM); break;
1391 CASE_TEST(chroot_root); EXPECT_SYSZR(euid0, chroot("/")); break;
1392 CASE_TEST(chroot_blah); EXPECT_SYSER(1, chroot("/proc/self/blah"), -1, ENOENT); break;
1393 CASE_TEST(chroot_exe); EXPECT_SYSER(1, chroot(argv0), -1, ENOTDIR); break;
1394 CASE_TEST(clock_nanosleep); ts.tv_nsec = -1; EXPECT_EQ(1, EINVAL, clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL)); break;
1395 CASE_TEST(close_m1); EXPECT_SYSER(1, close(-1), -1, EBADF); break;
1396 CASE_TEST(close_dup); EXPECT_SYSZR(1, close(dup(0))); break;
1397 CASE_TEST(dup_0); tmp = dup(0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break;
1398 CASE_TEST(dup_m1); tmp = dup(-1); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break;
1399 CASE_TEST(dup2_0); tmp = dup2(0, 100); EXPECT_SYSNE(1, tmp, -1); close(tmp); break;
1400 CASE_TEST(dup2_m1); tmp = dup2(-1, 100); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break;
1401 CASE_TEST(dup3_0); tmp = dup3(0, 100, 0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break;
1402 CASE_TEST(dup3_m1); tmp = dup3(-1, 100, 0); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break;
1403 CASE_TEST(execve_root); EXPECT_SYSER(1, execve("/", (char*[]){ [0] = "/", [1] = NULL }, NULL), -1, EACCES); break;
1404 CASE_TEST(fchdir_stdin); EXPECT_SYSER(1, fchdir(STDIN_FILENO), -1, ENOTDIR); break;
1405 CASE_TEST(fchdir_badfd); EXPECT_SYSER(1, fchdir(-1), -1, EBADF); break;
1406 CASE_TEST(file_stream); EXPECT_SYSZR(1, test_file_stream()); break;
1407 CASE_TEST(file_stream_wsr); EXPECT_SYSZR(1, test_file_stream_wsr()); break;
1408 CASE_TEST(fork); EXPECT_SYSZR(1, test_fork(FORK_STANDARD)); break;
1409 CASE_TEST(getdents64_root); EXPECT_SYSNE(1, test_getdents64("/"), -1); break;
1410 CASE_TEST(getdents64_null); EXPECT_SYSER(1, test_getdents64("/dev/null"), -1, ENOTDIR); break;
1411 CASE_TEST(directories); EXPECT_SYSZR(proc, test_dirent()); break;
1412 CASE_TEST(getrandom); EXPECT_SYSZR(1, test_getrandom()); break;
1413 CASE_TEST(gettimeofday_tv); EXPECT_SYSZR(1, gettimeofday(&tv, NULL)); break;
1414 CASE_TEST(gettimeofday_tv_tz);EXPECT_SYSZR(1, gettimeofday(&tv, &tz)); break;
1415 CASE_TEST(getpagesize); EXPECT_SYSZR(1, test_getpagesize()); break;
1416 CASE_TEST(ioctl_tiocinq); EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break;
1417 CASE_TEST(link_root1); EXPECT_SYSER(1, link("/", "/"), -1, EEXIST); break;
1418 CASE_TEST(link_blah); EXPECT_SYSER(1, link("/proc/self/blah", "/blah"), -1, ENOENT); break;
1419 CASE_TEST(link_dir); EXPECT_SYSER(euid0, link("/", "/blah"), -1, EPERM); break;
1420 CASE_TEST(link_cross); EXPECT_SYSER(proc, link("/proc/self/cmdline", "/blah"), -1, EXDEV); break;
1421 CASE_TEST(lseek_m1); EXPECT_SYSER(1, lseek(-1, 0, SEEK_SET), -1, EBADF); break;
1422 CASE_TEST(lseek_0); EXPECT_SYSER(1, lseek(0, 0, SEEK_SET), -1, ESPIPE); break;
1423 CASE_TEST(mkdir_root); EXPECT_SYSER(1, mkdir("/", 0755), -1, EEXIST); break;
1424 CASE_TEST(mmap_bad); EXPECT_PTRER(1, mmap(NULL, 0, PROT_READ, MAP_PRIVATE, 0, 0), MAP_FAILED, EINVAL); break;
1425 CASE_TEST(munmap_bad); EXPECT_SYSER(1, munmap(NULL, 0), -1, EINVAL); break;
1426 CASE_TEST(mmap_munmap_good); EXPECT_SYSZR(1, test_mmap_munmap()); break;
1427 CASE_TEST(nanosleep); ts.tv_nsec = -1; EXPECT_SYSER(1, nanosleep(&ts, NULL), -1, EINVAL); break;
1428 CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", O_RDONLY), -1); if (tmp != -1) close(tmp); break;
1429 CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", O_RDONLY), -1, ENOENT); if (tmp != -1) close(tmp); break;
1430 CASE_TEST(openat_dir); EXPECT_SYSZR(1, test_openat()); break;
1431 CASE_TEST(pipe); EXPECT_SYSZR(1, test_pipe()); break;
1432 CASE_TEST(poll_null); EXPECT_SYSZR(1, poll(NULL, 0, 0)); break;
1433 CASE_TEST(poll_stdout); EXPECT_SYSNE(1, ({ struct pollfd fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break;
1434 CASE_TEST(poll_fault); EXPECT_SYSER(1, poll(NULL, 1, 0), -1, EFAULT); break;
1435 CASE_TEST(prctl); EXPECT_SYSER(1, prctl(PR_SET_NAME, (unsigned long)NULL, 0, 0, 0), -1, EFAULT); break;
1436 CASE_TEST(read_badf); EXPECT_SYSER(1, read(-1, &tmp, 1), -1, EBADF); break;
1437 CASE_TEST(rlimit); EXPECT_SYSZR(1, test_rlimit()); break;
1438 CASE_TEST(rmdir_blah); EXPECT_SYSER(1, rmdir("/blah"), -1, ENOENT); break;
1439 CASE_TEST(sched_yield); EXPECT_SYSZR(1, sched_yield()); break;
1440 CASE_TEST(select_null); EXPECT_SYSZR(1, ({ struct timeval tv = { 0 }; select(0, NULL, NULL, NULL, &tv); })); break;
1441 CASE_TEST(select_stdout); EXPECT_SYSNE(1, ({ fd_set fds; FD_ZERO(&fds); FD_SET(1, &fds); select(2, NULL, &fds, NULL, NULL); }), -1); break;
1442 CASE_TEST(select_fault); EXPECT_SYSER(1, select(1, (void *)1, NULL, NULL, 0), -1, EFAULT); break;
1443 CASE_TEST(stat_blah); EXPECT_SYSER(1, stat("/proc/self/blah", &stat_buf), -1, ENOENT); break;
1444 CASE_TEST(stat_fault); EXPECT_SYSER(1, stat(NULL, &stat_buf), -1, EFAULT); break;
1445 CASE_TEST(stat_timestamps); EXPECT_SYSZR(1, test_stat_timestamps()); break;
1446 CASE_TEST(symlink_root); EXPECT_SYSER(1, symlink("/", "/"), -1, EEXIST); break;
1447 CASE_TEST(timer); EXPECT_SYSZR(1, test_timer()); break;
1448 CASE_TEST(timerfd); EXPECT_SYSZR(1, test_timerfd()); break;
1449 CASE_TEST(uname); EXPECT_SYSZR(proc, test_uname()); break;
1450 CASE_TEST(uname_fault); EXPECT_SYSER(1, uname(NULL), -1, EFAULT); break;
1451 CASE_TEST(unlink_root); EXPECT_SYSER(1, unlink("/"), -1, EISDIR); break;
1452 CASE_TEST(unlink_blah); EXPECT_SYSER(1, unlink("/proc/self/blah"), -1, ENOENT); break;
1453 CASE_TEST(vfork); EXPECT_SYSZR(1, test_fork(FORK_VFORK)); break;
1454 CASE_TEST(wait_child); EXPECT_SYSER(1, wait(&tmp), -1, ECHILD); break;
1455 CASE_TEST(waitpid_min); EXPECT_SYSER(1, waitpid(INT_MIN, &tmp, WNOHANG), -1, ESRCH); break;
1456 CASE_TEST(waitpid_child); EXPECT_SYSER(1, waitpid(getpid(), &tmp, WNOHANG), -1, ECHILD); break;
1457 CASE_TEST(write_badf); EXPECT_SYSER(1, write(-1, &tmp, 1), -1, EBADF); break;
1458 CASE_TEST(write_zero); EXPECT_SYSZR(1, write(1, &tmp, 0)); break;
1459 CASE_TEST(readv_badf); EXPECT_SYSER(1, readv(-1, &iov_one, 1), -1, EBADF); break;
1460 CASE_TEST(readv_zero); EXPECT_SYSZR(1, readv(0, NULL, 0)); break;
1461 CASE_TEST(writev_badf); EXPECT_SYSER(1, writev(-1, &iov_one, 1), -1, EBADF); break;
1462 CASE_TEST(writev_zero); EXPECT_SYSZR(1, writev(1, NULL, 0)); break;
1463 CASE_TEST(ptrace); EXPECT_SYSER(1, ptrace(PTRACE_CONT, getpid(), NULL, NULL), -1, ESRCH); break;
1464 CASE_TEST(syscall_noargs); EXPECT_SYSEQ(1, syscall(__NR_getpid), getpid()); break;
1465 CASE_TEST(syscall_args); EXPECT_SYSER(1, syscall(__NR_statx, 0, NULL, 0, 0, NULL), -1, EFAULT); break;
1466 CASE_TEST(namespace); EXPECT_SYSZR(euid0 && proc, test_namespace()); break;
1467 case __LINE__:
1468 return ret; /* must be last */
1469 /* note: do not set any defaults so as to permit holes above */
1470 }
1471 }
1472 return ret;
1473 }
1474
test_difftime(void)1475 int test_difftime(void)
1476 {
1477 if (difftime(200., 100.) != 100.)
1478 return 1;
1479
1480 if (difftime(100., 200.) != -100.)
1481 return 1;
1482
1483 return 0;
1484 }
1485
test_time_types(void)1486 int test_time_types(void)
1487 {
1488 #ifdef NOLIBC
1489 struct __kernel_timespec kts;
1490 struct timespec ts;
1491
1492 if (!__builtin_types_compatible_p(time_t, __kernel_time64_t))
1493 return 1;
1494
1495 if (sizeof(ts) != sizeof(kts))
1496 return 1;
1497
1498 if (!__builtin_types_compatible_p(__typeof__(ts.tv_sec), __typeof__(kts.tv_sec)))
1499 return 1;
1500
1501 if (!__builtin_types_compatible_p(__typeof__(ts.tv_nsec), __typeof__(kts.tv_nsec)))
1502 return 1;
1503
1504 if (offsetof(__typeof__(ts), tv_sec) != offsetof(__typeof__(kts), tv_sec))
1505 return 1;
1506
1507 if (offsetof(__typeof__(ts), tv_nsec) != offsetof(__typeof__(kts), tv_nsec))
1508 return 1;
1509 #endif /* NOLIBC */
1510
1511 return 0;
1512 }
1513
run_stdlib(int min,int max)1514 int run_stdlib(int min, int max)
1515 {
1516 int test;
1517 int ret = 0;
1518
1519 for (test = min; test >= 0 && test <= max; test++) {
1520 int llen = 0; /* line length */
1521
1522 /* For functions that take a long buffer, like strlcat()
1523 * Add some more chars after the \0, to test functions that overwrite the buffer set
1524 * the \0 at the exact right position.
1525 */
1526 char buf[11] = "test123456";
1527 buf[4] = '\0';
1528
1529
1530 /* avoid leaving empty lines below, this will insert holes into
1531 * test numbers.
1532 */
1533 switch (test + __LINE__ + 1) {
1534 CASE_TEST(getenv_TERM); EXPECT_STRNZ(1, getenv("TERM")); break;
1535 CASE_TEST(getenv_blah); EXPECT_STRZR(1, getenv("blah")); break;
1536 CASE_TEST(setcmp_blah_blah); EXPECT_EQ(1, strcmp("blah", "blah"), 0); break;
1537 CASE_TEST(setcmp_blah_blah2); EXPECT_NE(1, strcmp("blah", "blah2"), 0); break;
1538 CASE_TEST(setncmp_blah_blah); EXPECT_EQ(1, strncmp("blah", "blah", 10), 0); break;
1539 CASE_TEST(setncmp_blah_blah4); EXPECT_EQ(1, strncmp("blah", "blah4", 4), 0); break;
1540 CASE_TEST(setncmp_blah_blah5); EXPECT_NE(1, strncmp("blah", "blah5", 5), 0); break;
1541 CASE_TEST(setncmp_blah_blah6); EXPECT_NE(1, strncmp("blah", "blah6", 6), 0); break;
1542 CASE_TEST(strchr_foobar_o); EXPECT_STREQ(1, strchr("foobar", 'o'), "oobar"); break;
1543 CASE_TEST(strchr_foobar_z); EXPECT_STRZR(1, strchr("foobar", 'z')); break;
1544 CASE_TEST(strrchr_foobar_o); EXPECT_STREQ(1, strrchr("foobar", 'o'), "obar"); break;
1545 CASE_TEST(strrchr_foobar_z); EXPECT_STRZR(1, strrchr("foobar", 'z')); break;
1546 CASE_TEST(strlcat_0); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 0), buf, 3, "test"); break;
1547 CASE_TEST(strlcat_1); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 1), buf, 4, "test"); break;
1548 CASE_TEST(strlcat_5); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 5), buf, 7, "test"); break;
1549 CASE_TEST(strlcat_6); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 6), buf, 7, "testb"); break;
1550 CASE_TEST(strlcat_7); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 7), buf, 7, "testba"); break;
1551 CASE_TEST(strlcat_8); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 8), buf, 7, "testbar"); break;
1552 CASE_TEST(strlcpy_0); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 0), buf, 3, "test"); break;
1553 CASE_TEST(strlcpy_1); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 1), buf, 3, ""); break;
1554 CASE_TEST(strlcpy_2); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 2), buf, 3, "b"); break;
1555 CASE_TEST(strlcpy_3); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 3), buf, 3, "ba"); break;
1556 CASE_TEST(strlcpy_4); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 4), buf, 3, "bar"); break;
1557 CASE_TEST(strstr_foobar_foo); EXPECT_STREQ(1, strstr("foobar", "foo"), "foobar"); break;
1558 CASE_TEST(strstr_foobar_bar); EXPECT_STREQ(1, strstr("foobar", "bar"), "bar"); break;
1559 CASE_TEST(strstr_foobar_baz); EXPECT_PTREQ(1, strstr("foobar", "baz"), NULL); break;
1560 CASE_TEST(memcmp_20_20); EXPECT_EQ(1, memcmp("aaa\x20", "aaa\x20", 4), 0); break;
1561 CASE_TEST(memcmp_20_60); EXPECT_LT(1, memcmp("aaa\x20", "aaa\x60", 4), 0); break;
1562 CASE_TEST(memcmp_60_20); EXPECT_GT(1, memcmp("aaa\x60", "aaa\x20", 4), 0); break;
1563 CASE_TEST(memcmp_20_e0); EXPECT_LT(1, memcmp("aaa\x20", "aaa\xe0", 4), 0); break;
1564 CASE_TEST(memcmp_e0_20); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x20", 4), 0); break;
1565 CASE_TEST(memcmp_80_e0); EXPECT_LT(1, memcmp("aaa\x80", "aaa\xe0", 4), 0); break;
1566 CASE_TEST(memcmp_e0_80); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x80", 4), 0); break;
1567 CASE_TEST(limit_int8_max); EXPECT_EQ(1, INT8_MAX, (int8_t) 0x7f); break;
1568 CASE_TEST(limit_int8_min); EXPECT_EQ(1, INT8_MIN, (int8_t) 0x80); break;
1569 CASE_TEST(limit_uint8_max); EXPECT_EQ(1, UINT8_MAX, (uint8_t) 0xff); break;
1570 CASE_TEST(limit_int16_max); EXPECT_EQ(1, INT16_MAX, (int16_t) 0x7fff); break;
1571 CASE_TEST(limit_int16_min); EXPECT_EQ(1, INT16_MIN, (int16_t) 0x8000); break;
1572 CASE_TEST(limit_uint16_max); EXPECT_EQ(1, UINT16_MAX, (uint16_t) 0xffff); break;
1573 CASE_TEST(limit_int32_max); EXPECT_EQ(1, INT32_MAX, (int32_t) 0x7fffffff); break;
1574 CASE_TEST(limit_int32_min); EXPECT_EQ(1, INT32_MIN, (int32_t) 0x80000000); break;
1575 CASE_TEST(limit_uint32_max); EXPECT_EQ(1, UINT32_MAX, (uint32_t) 0xffffffff); break;
1576 CASE_TEST(limit_int64_max); EXPECT_EQ(1, INT64_MAX, (int64_t) 0x7fffffffffffffff); break;
1577 CASE_TEST(limit_int64_min); EXPECT_EQ(1, INT64_MIN, (int64_t) 0x8000000000000000); break;
1578 CASE_TEST(limit_uint64_max); EXPECT_EQ(1, UINT64_MAX, (uint64_t) 0xffffffffffffffff); break;
1579 CASE_TEST(limit_int_least8_max); EXPECT_EQ(1, INT_LEAST8_MAX, (int_least8_t) 0x7f); break;
1580 CASE_TEST(limit_int_least8_min); EXPECT_EQ(1, INT_LEAST8_MIN, (int_least8_t) 0x80); break;
1581 CASE_TEST(limit_uint_least8_max); EXPECT_EQ(1, UINT_LEAST8_MAX, (uint_least8_t) 0xff); break;
1582 CASE_TEST(limit_int_least16_max); EXPECT_EQ(1, INT_LEAST16_MAX, (int_least16_t) 0x7fff); break;
1583 CASE_TEST(limit_int_least16_min); EXPECT_EQ(1, INT_LEAST16_MIN, (int_least16_t) 0x8000); break;
1584 CASE_TEST(limit_uint_least16_max); EXPECT_EQ(1, UINT_LEAST16_MAX, (uint_least16_t) 0xffff); break;
1585 CASE_TEST(limit_int_least32_max); EXPECT_EQ(1, INT_LEAST32_MAX, (int_least32_t) 0x7fffffff); break;
1586 CASE_TEST(limit_int_least32_min); EXPECT_EQ(1, INT_LEAST32_MIN, (int_least32_t) 0x80000000); break;
1587 CASE_TEST(limit_uint_least32_max); EXPECT_EQ(1, UINT_LEAST32_MAX, (uint_least32_t) 0xffffffffU); break;
1588 CASE_TEST(limit_int_least64_min); EXPECT_EQ(1, INT_LEAST64_MIN, (int_least64_t) 0x8000000000000000LL); break;
1589 CASE_TEST(limit_int_least64_max); EXPECT_EQ(1, INT_LEAST64_MAX, (int_least64_t) 0x7fffffffffffffffLL); break;
1590 CASE_TEST(limit_uint_least64_max); EXPECT_EQ(1, UINT_LEAST64_MAX, (uint_least64_t) 0xffffffffffffffffULL); break;
1591 CASE_TEST(limit_int_fast8_max); EXPECT_EQ(1, INT_FAST8_MAX, (int_fast8_t) 0x7f); break;
1592 CASE_TEST(limit_int_fast8_min); EXPECT_EQ(1, INT_FAST8_MIN, (int_fast8_t) 0x80); break;
1593 CASE_TEST(limit_uint_fast8_max); EXPECT_EQ(1, UINT_FAST8_MAX, (uint_fast8_t) 0xff); break;
1594 CASE_TEST(limit_int_fast16_min); EXPECT_EQ(1, INT_FAST16_MIN, (int_fast16_t) SINT_MIN_OF_TYPE(int_fast16_t)); break;
1595 CASE_TEST(limit_int_fast16_max); EXPECT_EQ(1, INT_FAST16_MAX, (int_fast16_t) SINT_MAX_OF_TYPE(int_fast16_t)); break;
1596 CASE_TEST(limit_uint_fast16_max); EXPECT_EQ(1, UINT_FAST16_MAX, (uint_fast16_t) UINTPTR_MAX); break;
1597 CASE_TEST(limit_int_fast32_min); EXPECT_EQ(1, INT_FAST32_MIN, (int_fast32_t) SINT_MIN_OF_TYPE(int_fast32_t)); break;
1598 CASE_TEST(limit_int_fast32_max); EXPECT_EQ(1, INT_FAST32_MAX, (int_fast32_t) SINT_MAX_OF_TYPE(int_fast32_t)); break;
1599 CASE_TEST(limit_uint_fast32_max); EXPECT_EQ(1, UINT_FAST32_MAX, (uint_fast32_t) UINTPTR_MAX); break;
1600 CASE_TEST(limit_int_fast64_min); EXPECT_EQ(1, INT_FAST64_MIN, (int_fast64_t) INT64_MIN); break;
1601 CASE_TEST(limit_int_fast64_max); EXPECT_EQ(1, INT_FAST64_MAX, (int_fast64_t) INT64_MAX); break;
1602 CASE_TEST(limit_uint_fast64_max); EXPECT_EQ(1, UINT_FAST64_MAX, (uint_fast64_t) UINT64_MAX); break;
1603 CASE_TEST(sizeof_long_sane); EXPECT_EQ(1, sizeof(long) == 8 || sizeof(long) == 4, 1); break;
1604 CASE_TEST(limit_intptr_min); EXPECT_EQ(1, INTPTR_MIN, sizeof(long) == 8 ? (intptr_t) 0x8000000000000000LL : (intptr_t) 0x80000000); break;
1605 CASE_TEST(limit_intptr_max); EXPECT_EQ(1, INTPTR_MAX, sizeof(long) == 8 ? (intptr_t) 0x7fffffffffffffffLL : (intptr_t) 0x7fffffff); break;
1606 CASE_TEST(limit_uintptr_max); EXPECT_EQ(1, UINTPTR_MAX, sizeof(long) == 8 ? (uintptr_t) 0xffffffffffffffffULL : (uintptr_t) 0xffffffffU); break;
1607 CASE_TEST(limit_ptrdiff_min); EXPECT_EQ(1, PTRDIFF_MIN, sizeof(long) == 8 ? (ptrdiff_t) 0x8000000000000000LL : (ptrdiff_t) 0x80000000); break;
1608 CASE_TEST(limit_ptrdiff_max); EXPECT_EQ(1, PTRDIFF_MAX, sizeof(long) == 8 ? (ptrdiff_t) 0x7fffffffffffffffLL : (ptrdiff_t) 0x7fffffff); break;
1609 CASE_TEST(limit_size_max); EXPECT_EQ(1, SIZE_MAX, sizeof(long) == 8 ? (size_t) 0xffffffffffffffffULL : (size_t) 0xffffffffU); break;
1610 CASE_TEST(strtol_simple); EXPECT_STRTOX(1, strtol, "35", 10, 35, -1, 0); break;
1611 CASE_TEST(strtol_positive); EXPECT_STRTOX(1, strtol, "+35", 10, 35, -1, 0); break;
1612 CASE_TEST(strtol_negative); EXPECT_STRTOX(1, strtol, "-35", 10, -35, -1, 0); break;
1613 CASE_TEST(strtol_hex_auto); EXPECT_STRTOX(1, strtol, "0xFF", 0, 255, -1, 0); break;
1614 CASE_TEST(strtol_base36); EXPECT_STRTOX(1, strtol, "12yZ", 36, 50507, -1, 0); break;
1615 CASE_TEST(strtol_cutoff); EXPECT_STRTOX(1, strtol, "1234567890", 8, 342391, 7, 0); break;
1616 CASE_TEST(strtol_octal_auto); EXPECT_STRTOX(1, strtol, "011", 0, 9, -1, 0); break;
1617 CASE_TEST(strtol_hex_00); EXPECT_STRTOX(1, strtol, "0x00", 16, 0, -1, 0); break;
1618 CASE_TEST(strtol_hex_FF); EXPECT_STRTOX(1, strtol, "FF", 16, 255, -1, 0); break;
1619 CASE_TEST(strtol_hex_ff); EXPECT_STRTOX(1, strtol, "ff", 16, 255, -1, 0); break;
1620 CASE_TEST(strtol_hex_prefix); EXPECT_STRTOX(1, strtol, "0xFF", 16, 255, -1, 0); break;
1621 CASE_TEST(strtol_trailer); EXPECT_STRTOX(1, strtol, "35foo", 10, 35, 2, 0); break;
1622 CASE_TEST(strtol_overflow); EXPECT_STRTOX(1, strtol, "0x8000000000000000", 16, LONG_MAX, -1, ERANGE); break;
1623 CASE_TEST(strtol_underflow); EXPECT_STRTOX(1, strtol, "-0x8000000000000001", 16, LONG_MIN, -1, ERANGE); break;
1624 CASE_TEST(strtoul_negative); EXPECT_STRTOX(1, strtoul, "-0x1", 16, ULONG_MAX, 4, 0); break;
1625 CASE_TEST(strtoul_overflow); EXPECT_STRTOX(1, strtoul, "0x10000000000000000", 16, ULONG_MAX, -1, ERANGE); break;
1626 CASE_TEST(strerror_success); EXPECT_STREQ(is_nolibc, strerror(0), "errno=0"); break;
1627 CASE_TEST(strerror_EINVAL); EXPECT_STREQ(is_nolibc, strerror(EINVAL), "errno=22"); break;
1628 CASE_TEST(strerror_int_max); EXPECT_STREQ(is_nolibc, strerror(INT_MAX), "errno=2147483647"); break;
1629 CASE_TEST(strerror_int_min); EXPECT_STREQ(is_nolibc, strerror(INT_MIN), "errno=-2147483648"); break;
1630 CASE_TEST(tolower); EXPECT_EQ(1, tolower('A'), 'a'); break;
1631 CASE_TEST(tolower_noop); EXPECT_EQ(1, tolower('a'), 'a'); break;
1632 CASE_TEST(toupper); EXPECT_EQ(1, toupper('a'), 'A'); break;
1633 CASE_TEST(toupper_noop); EXPECT_EQ(1, toupper('A'), 'A'); break;
1634 CASE_TEST(abs); EXPECT_EQ(1, abs(-10), 10); break;
1635 CASE_TEST(abs_noop); EXPECT_EQ(1, abs(10), 10); break;
1636 CASE_TEST(difftime); EXPECT_ZR(1, test_difftime()); break;
1637 CASE_TEST(memchr_foobar6_o); EXPECT_STREQ(1, memchr("foobar", 'o', 6), "oobar"); break;
1638 CASE_TEST(memchr_foobar3_b); EXPECT_STRZR(1, memchr("foobar", 'b', 3)); break;
1639 CASE_TEST(time_types); EXPECT_ZR(is_nolibc, test_time_types()); break;
1640
1641 case __LINE__:
1642 return ret; /* must be last */
1643 /* note: do not set any defaults so as to permit holes above */
1644 }
1645 }
1646 return ret;
1647 }
1648
1649 #define EXPECT_VFPRINTF(c, expected, fmt, ...) \
1650 ret += expect_vfprintf(llen, c, expected, fmt, ##__VA_ARGS__)
1651
expect_vfprintf(int llen,int c,const char * expected,const char * fmt,...)1652 static int expect_vfprintf(int llen, int c, const char *expected, const char *fmt, ...)
1653 {
1654 char buf[100];
1655 va_list args;
1656 ssize_t w;
1657 int ret;
1658
1659
1660 va_start(args, fmt);
1661 /* Only allow writing 21 bytes, to test truncation */
1662 w = vsnprintf(buf, 21, fmt, args);
1663 va_end(args);
1664
1665 if (w != c) {
1666 llen += printf(" written(%d) != %d", (int)w, c);
1667 result(llen, FAIL);
1668 return 1;
1669 }
1670
1671 llen += printf(" \"%s\" = \"%s\"", expected, buf);
1672 ret = strncmp(expected, buf, c);
1673
1674 result(llen, ret ? FAIL : OK);
1675 return ret;
1676 }
1677
test_scanf(void)1678 static int test_scanf(void)
1679 {
1680 unsigned long long ull;
1681 unsigned long ul;
1682 unsigned int u;
1683 long long ll;
1684 long l;
1685 void *p;
1686 int i;
1687
1688 /* return __LINE__ to point to the specific failure */
1689
1690 /* test EOF */
1691 if (sscanf("", "foo") != EOF)
1692 return __LINE__;
1693
1694 /* test simple literal without placeholder */
1695 if (sscanf("foo", "foo") != 0)
1696 return __LINE__;
1697
1698 /* test single placeholder */
1699 if (sscanf("123", "%d", &i) != 1)
1700 return __LINE__;
1701
1702 if (i != 123)
1703 return __LINE__;
1704
1705 /* test multiple place holders and separators */
1706 if (sscanf("a123b456c0x90", "a%db%uc%p", &i, &u, &p) != 3)
1707 return __LINE__;
1708
1709 if (i != 123)
1710 return __LINE__;
1711
1712 if (u != 456)
1713 return __LINE__;
1714
1715 if (p != (void *)0x90)
1716 return __LINE__;
1717
1718 /* test space handling */
1719 if (sscanf("a b1", "a b%d", &i) != 1)
1720 return __LINE__;
1721
1722 if (i != 1)
1723 return __LINE__;
1724
1725 /* test literal percent */
1726 if (sscanf("a%1", "a%%%d", &i) != 1)
1727 return __LINE__;
1728
1729 if (i != 1)
1730 return __LINE__;
1731
1732 /* test stdint.h types */
1733 if (sscanf("1|2|3|4|5|6",
1734 "%d|%ld|%lld|%u|%lu|%llu",
1735 &i, &l, &ll, &u, &ul, &ull) != 6)
1736 return __LINE__;
1737
1738 if (i != 1 || l != 2 || ll != 3 ||
1739 u != 4 || ul != 5 || ull != 6)
1740 return __LINE__;
1741
1742 return 0;
1743 }
1744
test_strerror(void)1745 int test_strerror(void)
1746 {
1747 char buf[100];
1748 ssize_t ret;
1749
1750 memset(buf, 'A', sizeof(buf));
1751
1752 errno = EINVAL;
1753 ret = snprintf(buf, sizeof(buf), "%m");
1754 if (is_nolibc) {
1755 if (ret < 6 || memcmp(buf, "errno=", 6))
1756 return 1;
1757 }
1758
1759 return 0;
1760 }
1761
test_printf_error(void)1762 static int test_printf_error(void)
1763 {
1764 int fd, ret, saved_errno;
1765
1766 fd = open("/dev/full", O_RDWR);
1767 if (fd == -1)
1768 return 1;
1769
1770 errno = 0;
1771 ret = dprintf(fd, "foo");
1772 saved_errno = errno;
1773 close(fd);
1774
1775 if (ret != -1)
1776 return 2;
1777
1778 if (saved_errno != ENOSPC)
1779 return 3;
1780
1781 return 0;
1782 }
1783
run_printf(int min,int max)1784 static int run_printf(int min, int max)
1785 {
1786 int test;
1787 int ret = 0;
1788
1789 for (test = min; test >= 0 && test <= max; test++) {
1790 int llen = 0; /* line length */
1791
1792 /* avoid leaving empty lines below, this will insert holes into
1793 * test numbers.
1794 */
1795 switch (test + __LINE__ + 1) {
1796 CASE_TEST(empty); EXPECT_VFPRINTF(0, "", ""); break;
1797 CASE_TEST(simple); EXPECT_VFPRINTF(3, "foo", "foo"); break;
1798 CASE_TEST(string); EXPECT_VFPRINTF(3, "foo", "%s", "foo"); break;
1799 CASE_TEST(number); EXPECT_VFPRINTF(4, "1234", "%d", 1234); break;
1800 CASE_TEST(negnumber); EXPECT_VFPRINTF(5, "-1234", "%d", -1234); break;
1801 CASE_TEST(unsigned); EXPECT_VFPRINTF(5, "12345", "%u", 12345); break;
1802 CASE_TEST(char); EXPECT_VFPRINTF(1, "c", "%c", 'c'); break;
1803 CASE_TEST(hex); EXPECT_VFPRINTF(1, "f", "%x", 0xf); break;
1804 CASE_TEST(pointer); EXPECT_VFPRINTF(3, "0x1", "%p", (void *) 0x1); break;
1805 CASE_TEST(uintmax_t); EXPECT_VFPRINTF(20, "18446744073709551615", "%ju", 0xffffffffffffffffULL); break;
1806 CASE_TEST(intmax_t); EXPECT_VFPRINTF(20, "-9223372036854775807", "%jd", 0x8000000000000001LL); break;
1807 CASE_TEST(truncation); EXPECT_VFPRINTF(25, "01234567890123456789", "%s", "0123456789012345678901234"); break;
1808 CASE_TEST(string_width); EXPECT_VFPRINTF(10, " 1", "%10s", "1"); break;
1809 CASE_TEST(number_width); EXPECT_VFPRINTF(10, " 1", "%10d", 1); break;
1810 CASE_TEST(width_trunc); EXPECT_VFPRINTF(25, " ", "%25d", 1); break;
1811 CASE_TEST(scanf); EXPECT_ZR(1, test_scanf()); break;
1812 CASE_TEST(strerror); EXPECT_ZR(1, test_strerror()); break;
1813 CASE_TEST(printf_error); EXPECT_ZR(1, test_printf_error()); break;
1814 case __LINE__:
1815 return ret; /* must be last */
1816 /* note: do not set any defaults so as to permit holes above */
1817 }
1818 }
1819 return ret;
1820 }
1821
1822 __attribute__((no_sanitize("undefined")))
smash_stack(void)1823 static int smash_stack(void)
1824 {
1825 char buf[100];
1826 volatile char *ptr = buf;
1827 size_t i;
1828
1829 for (i = 0; i < 200; i++)
1830 ptr[i] = 'P';
1831
1832 return 1;
1833 }
1834
run_protection(int min,int max)1835 static int run_protection(int min __attribute__((unused)),
1836 int max __attribute__((unused)))
1837 {
1838 pid_t pid;
1839 int llen = 0, status;
1840 struct rlimit rlimit = { 0, 0 };
1841
1842 llen += printf("0 -fstackprotector ");
1843
1844 #if !defined(_NOLIBC_STACKPROTECTOR)
1845 llen += printf("not supported");
1846 result(llen, SKIPPED);
1847 return 0;
1848 #endif
1849
1850 #if defined(_NOLIBC_STACKPROTECTOR)
1851 if (!__stack_chk_guard) {
1852 llen += printf("__stack_chk_guard not initialized");
1853 result(llen, FAIL);
1854 return 1;
1855 }
1856 #endif
1857
1858 pid = -1;
1859 pid = fork();
1860
1861 switch (pid) {
1862 case -1:
1863 llen += printf("fork()");
1864 result(llen, FAIL);
1865 return 1;
1866
1867 case 0:
1868 close(STDOUT_FILENO);
1869 close(STDERR_FILENO);
1870
1871 prctl(PR_SET_DUMPABLE, 0, 0, 0, 0);
1872 setrlimit(RLIMIT_CORE, &rlimit);
1873 smash_stack();
1874 return 1;
1875
1876 default:
1877 pid = waitpid(pid, &status, 0);
1878
1879 if (pid == -1 || !WIFSIGNALED(status) || WTERMSIG(status) != SIGABRT) {
1880 llen += printf("waitpid()");
1881 result(llen, FAIL);
1882 return 1;
1883 }
1884 result(llen, OK);
1885 return 0;
1886 }
1887 }
1888
1889 /* prepare what needs to be prepared for pid 1 (stdio, /dev, /proc, etc) */
prepare(void)1890 int prepare(void)
1891 {
1892 struct stat stat_buf;
1893
1894 /* It's possible that /dev doesn't even exist or was not mounted, so
1895 * we'll try to create it, mount it, or create minimal entries into it.
1896 * We want at least /dev/null and /dev/console.
1897 */
1898 if (stat("/dev/.", &stat_buf) == 0 || mkdir("/dev", 0755) == 0) {
1899 if (stat("/dev/console", &stat_buf) != 0 ||
1900 stat("/dev/null", &stat_buf) != 0 ||
1901 stat("/dev/zero", &stat_buf) != 0 ||
1902 stat("/dev/full", &stat_buf) != 0) {
1903 /* try devtmpfs first, otherwise fall back to manual creation */
1904 if (mount("/dev", "/dev", "devtmpfs", 0, 0) != 0) {
1905 mknod("/dev/console", 0600 | S_IFCHR, makedev(5, 1));
1906 mknod("/dev/null", 0666 | S_IFCHR, makedev(1, 3));
1907 mknod("/dev/zero", 0666 | S_IFCHR, makedev(1, 5));
1908 mknod("/dev/full", 0666 | S_IFCHR, makedev(1, 7));
1909 }
1910 }
1911 }
1912
1913 /* If no /dev/console was found before calling init, stdio is closed so
1914 * we need to reopen it from /dev/console. If it failed above, it will
1915 * still fail here and we cannot emit a message anyway.
1916 */
1917 if (close(dup(1)) == -1) {
1918 int fd = open("/dev/console", O_RDWR);
1919
1920 if (fd >= 0) {
1921 if (fd != 0)
1922 dup2(fd, 0);
1923 if (fd != 1)
1924 dup2(fd, 1);
1925 if (fd != 2)
1926 dup2(fd, 2);
1927 if (fd > 2)
1928 close(fd);
1929 puts("\nSuccessfully reopened /dev/console.");
1930 }
1931 }
1932
1933 /* try to mount /proc if not mounted. Silently fail otherwise */
1934 if (stat("/proc/.", &stat_buf) == 0 || mkdir("/proc", 0755) == 0) {
1935 if (stat("/proc/self", &stat_buf) != 0) {
1936 /* If not mountable, remove /proc completely to avoid misuse */
1937 if (mount("none", "/proc", "proc", 0, 0) != 0)
1938 rmdir("/proc");
1939 }
1940 }
1941
1942 /* some tests rely on a writable /tmp */
1943 mkdir("/tmp", 0755);
1944
1945 return 0;
1946 }
1947
1948 /* This is the definition of known test names, with their functions */
1949 static const struct test test_names[] = {
1950 /* add new tests here */
1951 { .name = "startup", .func = run_startup },
1952 { .name = "syscall", .func = run_syscall },
1953 { .name = "stdlib", .func = run_stdlib },
1954 { .name = "printf", .func = run_printf },
1955 { .name = "protection", .func = run_protection },
1956 { 0 }
1957 };
1958
is_setting_valid(char * test)1959 static int is_setting_valid(char *test)
1960 {
1961 int idx, len, test_len, valid = 0;
1962 char delimiter;
1963
1964 if (!test)
1965 return valid;
1966
1967 test_len = strlen(test);
1968
1969 for (idx = 0; test_names[idx].name; idx++) {
1970 len = strlen(test_names[idx].name);
1971 if (test_len < len)
1972 continue;
1973
1974 if (strncmp(test, test_names[idx].name, len) != 0)
1975 continue;
1976
1977 delimiter = test[len];
1978 if (delimiter != ':' && delimiter != ',' && delimiter != '\0')
1979 continue;
1980
1981 valid = 1;
1982 break;
1983 }
1984
1985 return valid;
1986 }
1987
main(int argc,char ** argv,char ** envp)1988 int main(int argc, char **argv, char **envp)
1989 {
1990 int min = 0;
1991 int max = INT_MAX;
1992 int ret = 0;
1993 int err;
1994 int idx;
1995 char *test;
1996
1997 argv0 = argv[0];
1998 test_argc = argc;
1999 test_argv = argv;
2000 test_envp = envp;
2001
2002 /* when called as init, it's possible that no console was opened, for
2003 * example if no /dev file system was provided. We'll check that fd#1
2004 * was opened, and if not we'll attempt to create and open /dev/console
2005 * and /dev/null that we'll use for later tests.
2006 */
2007 if (getpid() == 1)
2008 prepare();
2009
2010 /* the definition of a series of tests comes from either argv[1] or the
2011 * "NOLIBC_TEST" environment variable. It's made of a comma-delimited
2012 * series of test names and optional ranges:
2013 * syscall:5-15[:.*],stdlib:8-10
2014 */
2015 test = argv[1];
2016 if (!is_setting_valid(test))
2017 test = getenv("NOLIBC_TEST");
2018
2019 if (is_setting_valid(test)) {
2020 char *comma, *colon, *dash, *value;
2021
2022 do {
2023 comma = strchr(test, ',');
2024 if (comma)
2025 *(comma++) = '\0';
2026
2027 colon = strchr(test, ':');
2028 if (colon)
2029 *(colon++) = '\0';
2030
2031 for (idx = 0; test_names[idx].name; idx++) {
2032 if (strcmp(test, test_names[idx].name) == 0)
2033 break;
2034 }
2035
2036 if (test_names[idx].name) {
2037 /* The test was named, it will be called at least
2038 * once. We may have an optional range at <colon>
2039 * here, which defaults to the full range.
2040 */
2041 do {
2042 min = 0; max = INT_MAX;
2043 value = colon;
2044 if (value && *value) {
2045 colon = strchr(value, ':');
2046 if (colon)
2047 *(colon++) = '\0';
2048
2049 dash = strchr(value, '-');
2050 if (dash)
2051 *(dash++) = '\0';
2052
2053 /* support :val: :min-max: :min-: :-max: */
2054 if (*value)
2055 min = atoi(value);
2056 if (!dash)
2057 max = min;
2058 else if (*dash)
2059 max = atoi(dash);
2060
2061 value = colon;
2062 }
2063
2064 /* now's time to call the test */
2065 printf("Running test '%s'\n", test_names[idx].name);
2066 err = test_names[idx].func(min, max);
2067 ret += err;
2068 printf("Errors during this test: %d\n\n", err);
2069 } while (colon && *colon);
2070 } else
2071 printf("Ignoring unknown test name '%s'\n", test);
2072
2073 test = comma;
2074 } while (test && *test);
2075 } else {
2076 /* no test mentioned, run everything */
2077 for (idx = 0; test_names[idx].name; idx++) {
2078 printf("Running test '%s'\n", test_names[idx].name);
2079 err = test_names[idx].func(min, max);
2080 ret += err;
2081 printf("Errors during this test: %d\n\n", err);
2082 }
2083 }
2084
2085 printf("Total number of errors: %d\n", ret);
2086
2087 if (getpid() == 1) {
2088 /* we're running as init, there's no other process on the
2089 * system, thus likely started from a VM for a quick check.
2090 * Exiting will provoke a kernel panic that may be reported
2091 * as an error by Qemu or the hypervisor, while stopping
2092 * cleanly will often be reported as a success. This allows
2093 * to use the output of this program for bisecting kernels.
2094 */
2095 printf("Leaving init with final status: %d\n", !!ret);
2096 if (ret == 0)
2097 reboot(RB_POWER_OFF);
2098 #if defined(__x86_64__)
2099 /* QEMU started with "-device isa-debug-exit -no-reboot" will
2100 * exit with status code 2N+1 when N is written to 0x501. We
2101 * hard-code the syscall here as it's arch-dependent.
2102 */
2103 else if (syscall(__NR_ioperm, 0x501, 1, 1) == 0)
2104 __asm__ volatile ("outb %%al, %%dx" :: "d"(0x501), "a"(0));
2105 /* if it does nothing, fall back to the regular panic */
2106 #endif
2107 }
2108
2109 printf("Exiting with status %d\n", !!ret);
2110 return !!ret;
2111 }
2112