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 #include <stdbool.h> 46 #include <byteswap.h> 47 #include <endian.h> 48 49 #pragma GCC diagnostic ignored "-Wmissing-prototypes" 50 51 #include "nolibc-test-linkage.h" 52 53 /* for the type of int_fast16_t and int_fast32_t, musl differs from glibc and nolibc */ 54 #define SINT_MAX_OF_TYPE(type) (((type)1 << (sizeof(type) * 8 - 2)) - (type)1 + ((type)1 << (sizeof(type) * 8 - 2))) 55 #define SINT_MIN_OF_TYPE(type) (-SINT_MAX_OF_TYPE(type) - 1) 56 57 /* will be used to test initialization of environ */ 58 static char **test_envp; 59 60 /* will be used to test initialization of argv */ 61 static char **test_argv; 62 63 /* will be used to test initialization of argc */ 64 static int test_argc; 65 66 /* will be used by some test cases as readable file, please don't write it */ 67 static const char *argv0; 68 69 /* will be used by constructor tests */ 70 static int constructor_test_value; 71 72 static const int is_le = __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__; 73 74 static const int is_nolibc = 75 #ifdef NOLIBC 76 1 77 #else 78 0 79 #endif 80 ; 81 82 static const int is_glibc = 83 #ifdef __GLIBC__ 84 1 85 #else 86 0 87 #endif 88 ; 89 90 #if !defined(NOLIBC) 91 /* Some disabled tests may not compile. */ 92 93 /* strlcat() and strlcpy() may not be in the system headers. */ 94 #undef strlcat 95 #undef strlcpy 96 #define strlcat(d, s, l) 0 97 #define strlcpy(d, s, l) 0 98 99 /* readdir_r() is likely to be marked deprecated */ 100 #undef readdir_r 101 #define readdir_r(dir, dirent, result) ((errno = EINVAL), -1) 102 103 #define _syscall(...) 0 104 #endif 105 106 /* definition of a series of tests */ 107 struct test { 108 const char *name; /* test name */ 109 int (*func)(int min, int max); /* handler */ 110 }; 111 112 #ifndef _NOLIBC_STDLIB_H 113 char *itoa(int i) 114 { 115 static char buf[12]; 116 int ret; 117 118 ret = snprintf(buf, sizeof(buf), "%d", i); 119 return (ret >= 0 && ret < sizeof(buf)) ? buf : "#err"; 120 } 121 #endif 122 123 #define CASE_ERR(err) \ 124 case err: return #err 125 126 /* returns the error name (e.g. "ENOENT") for common errors, "SUCCESS" for 0, 127 * or the decimal value for less common ones. 128 */ 129 static const char *errorname(int err) 130 { 131 switch (err) { 132 case 0: return "SUCCESS"; 133 CASE_ERR(EPERM); 134 CASE_ERR(ENOENT); 135 CASE_ERR(ESRCH); 136 CASE_ERR(EINTR); 137 CASE_ERR(EIO); 138 CASE_ERR(ENXIO); 139 CASE_ERR(E2BIG); 140 CASE_ERR(ENOEXEC); 141 CASE_ERR(EBADF); 142 CASE_ERR(ECHILD); 143 CASE_ERR(EAGAIN); 144 CASE_ERR(ENOMEM); 145 CASE_ERR(EACCES); 146 CASE_ERR(EFAULT); 147 CASE_ERR(ENOTBLK); 148 CASE_ERR(EBUSY); 149 CASE_ERR(EEXIST); 150 CASE_ERR(EXDEV); 151 CASE_ERR(ENODEV); 152 CASE_ERR(ENOTDIR); 153 CASE_ERR(EISDIR); 154 CASE_ERR(EINVAL); 155 CASE_ERR(ENFILE); 156 CASE_ERR(EMFILE); 157 CASE_ERR(ENOTTY); 158 CASE_ERR(ETXTBSY); 159 CASE_ERR(EFBIG); 160 CASE_ERR(ENOSPC); 161 CASE_ERR(ESPIPE); 162 CASE_ERR(EROFS); 163 CASE_ERR(EMLINK); 164 CASE_ERR(EPIPE); 165 CASE_ERR(EDOM); 166 CASE_ERR(ERANGE); 167 CASE_ERR(ENOSYS); 168 CASE_ERR(EOVERFLOW); 169 default: 170 return itoa(err); 171 } 172 } 173 174 enum RESULT { 175 OK, 176 FAIL, 177 SKIPPED, 178 }; 179 180 static void result(int llen, enum RESULT r) 181 { 182 const char *msg; 183 184 if (r == OK) 185 msg = " [OK]"; 186 else if (r == SKIPPED) 187 msg = "[SKIPPED]"; 188 else 189 msg = " [FAIL]"; 190 191 llen = 64 - llen; 192 if (llen < 0) 193 llen = 0; 194 printf("%*s%s\n", llen, "", msg); 195 } 196 197 /* The tests below are intended to be used by the macroes, which evaluate 198 * expression <expr>, print the status to stdout, and update the "ret" 199 * variable to count failures. The functions themselves return the number 200 * of failures, thus either 0 or 1. 201 */ 202 203 #define EXPECT_ZR(cond, expr) \ 204 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_zr(expr, llen); } while (0) 205 206 static __attribute__((unused)) 207 int expect_zr(int expr, int llen) 208 { 209 int ret = !(expr == 0); 210 211 llen += printf(" = %d ", expr); 212 result(llen, ret ? FAIL : OK); 213 return ret; 214 } 215 216 217 #define EXPECT_NZ(cond, expr) \ 218 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_nz(expr, llen); } while (0) 219 220 static __attribute__((unused)) 221 int expect_nz(int expr, int llen) 222 { 223 int ret = !(expr != 0); 224 225 llen += printf(" = %d ", expr); 226 result(llen, ret ? FAIL : OK); 227 return ret; 228 } 229 230 231 #define EXPECT_EQ(cond, expr, val) \ 232 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_eq(expr, llen, val); } while (0) 233 234 static __attribute__((unused)) 235 int expect_eq(uint64_t expr, int llen, uint64_t val) 236 { 237 int ret = !(expr == val); 238 239 llen += printf(" = %lld ", (long long)expr); 240 result(llen, ret ? FAIL : OK); 241 return ret; 242 } 243 244 245 #define EXPECT_NE(cond, expr, val) \ 246 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ne(expr, llen, val); } while (0) 247 248 static __attribute__((unused)) 249 int expect_ne(int expr, int llen, int val) 250 { 251 int ret = !(expr != val); 252 253 llen += printf(" = %d ", expr); 254 result(llen, ret ? FAIL : OK); 255 return ret; 256 } 257 258 259 #define EXPECT_GE(cond, expr, val) \ 260 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ge(expr, llen, val); } while (0) 261 262 static __attribute__((unused)) 263 int expect_ge(int expr, int llen, int val) 264 { 265 int ret = !(expr >= val); 266 267 llen += printf(" = %d ", expr); 268 result(llen, ret ? FAIL : OK); 269 return ret; 270 } 271 272 273 #define EXPECT_GT(cond, expr, val) \ 274 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_gt(expr, llen, val); } while (0) 275 276 static __attribute__((unused)) 277 int expect_gt(int expr, int llen, int val) 278 { 279 int ret = !(expr > val); 280 281 llen += printf(" = %d ", expr); 282 result(llen, ret ? FAIL : OK); 283 return ret; 284 } 285 286 287 #define EXPECT_LE(cond, expr, val) \ 288 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_le(expr, llen, val); } while (0) 289 290 static __attribute__((unused)) 291 int expect_le(int expr, int llen, int val) 292 { 293 int ret = !(expr <= val); 294 295 llen += printf(" = %d ", expr); 296 result(llen, ret ? FAIL : OK); 297 return ret; 298 } 299 300 301 #define EXPECT_LT(cond, expr, val) \ 302 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_lt(expr, llen, val); } while (0) 303 304 static __attribute__((unused)) 305 int expect_lt(int expr, int llen, int val) 306 { 307 int ret = !(expr < val); 308 309 llen += printf(" = %d ", expr); 310 result(llen, ret ? FAIL : OK); 311 return ret; 312 } 313 314 315 #define EXPECT_SYSZR(cond, expr) \ 316 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syszr(expr, llen); } while (0) 317 318 static __attribute__((unused)) 319 int expect_syszr(int expr, int llen) 320 { 321 int ret = 0; 322 323 if (errno == ENOSYS) { 324 llen += printf(" = ENOSYS"); 325 result(llen, SKIPPED); 326 } else if (expr) { 327 ret = 1; 328 llen += printf(" = %d %s ", expr, errorname(errno)); 329 result(llen, FAIL); 330 } else { 331 llen += printf(" = %d ", expr); 332 result(llen, OK); 333 } 334 return ret; 335 } 336 337 338 #define EXPECT_SYSEQ(cond, expr, val) \ 339 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syseq(expr, llen, val); } while (0) 340 341 static __attribute__((unused)) 342 int expect_syseq(int expr, int llen, int val) 343 { 344 int ret = 0; 345 346 if (expr != val) { 347 ret = 1; 348 llen += printf(" = %d %s ", expr, errorname(errno)); 349 result(llen, FAIL); 350 } else { 351 llen += printf(" = %d ", expr); 352 result(llen, OK); 353 } 354 return ret; 355 } 356 357 358 #define EXPECT_SYSNE(cond, expr, val) \ 359 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_sysne(expr, llen, val); } while (0) 360 361 static __attribute__((unused)) 362 int expect_sysne(int expr, int llen, int val) 363 { 364 int ret = 0; 365 366 if (errno == ENOSYS) { 367 llen += printf(" = ENOSYS"); 368 result(llen, SKIPPED); 369 } else if (expr == val) { 370 ret = 1; 371 llen += printf(" = %d %s ", expr, errorname(errno)); 372 result(llen, FAIL); 373 } else { 374 llen += printf(" = %d ", expr); 375 result(llen, OK); 376 } 377 return ret; 378 } 379 380 381 #define EXPECT_SYSER2(cond, expr, expret, experr1, experr2) \ 382 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syserr2(expr, expret, experr1, experr2, llen); } while (0) 383 384 #define EXPECT_SYSER(cond, expr, expret, experr) \ 385 EXPECT_SYSER2(cond, expr, expret, experr, 0) 386 387 static __attribute__((unused)) 388 int expect_syserr2(int expr, int expret, int experr1, int experr2, int llen) 389 { 390 int ret = 0; 391 int _errno = errno; 392 393 llen += printf(" = %d %s ", expr, errorname(_errno)); 394 if (errno == ENOSYS) { 395 result(llen, SKIPPED); 396 } else if (expr != expret || (_errno != experr1 && _errno != experr2)) { 397 ret = 1; 398 if (experr2 == 0) 399 llen += printf(" != (%d %s) ", expret, errorname(experr1)); 400 else 401 llen += printf(" != (%d %s %s) ", expret, errorname(experr1), errorname(experr2)); 402 result(llen, FAIL); 403 } else { 404 result(llen, OK); 405 } 406 return ret; 407 } 408 409 410 #define EXPECT_PTRZR(cond, expr) \ 411 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrzr(expr, llen); } while (0) 412 413 static __attribute__((unused)) 414 int expect_ptrzr(const void *expr, int llen) 415 { 416 int ret = 0; 417 418 llen += printf(" = <%p> ", expr); 419 if (expr) { 420 ret = 1; 421 result(llen, FAIL); 422 } else { 423 result(llen, OK); 424 } 425 return ret; 426 } 427 428 429 #define EXPECT_PTRNZ(cond, expr) \ 430 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrnz(expr, llen); } while (0) 431 432 static __attribute__((unused)) 433 int expect_ptrnz(const void *expr, int llen) 434 { 435 int ret = 0; 436 437 llen += printf(" = <%p> ", expr); 438 if (!expr) { 439 ret = 1; 440 result(llen, FAIL); 441 } else { 442 result(llen, OK); 443 } 444 return ret; 445 } 446 447 #define EXPECT_PTREQ(cond, expr, cmp) \ 448 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptreq(expr, llen, cmp); } while (0) 449 450 static __attribute__((unused)) 451 int expect_ptreq(const void *expr, int llen, const void *cmp) 452 { 453 int ret = 0; 454 455 llen += printf(" = <%p> ", expr); 456 if (expr != cmp) { 457 ret = 1; 458 result(llen, FAIL); 459 } else { 460 result(llen, OK); 461 } 462 return ret; 463 } 464 465 #define EXPECT_PTRNE(cond, expr, cmp) \ 466 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrne(expr, llen, cmp); } while (0) 467 468 static __attribute__((unused)) 469 int expect_ptrne(const void *expr, int llen, const void *cmp) 470 { 471 int ret = 0; 472 473 llen += printf(" = <%p> ", expr); 474 if (expr == cmp) { 475 ret = 1; 476 result(llen, FAIL); 477 } else { 478 result(llen, OK); 479 } 480 return ret; 481 } 482 483 #define EXPECT_PTRGE(cond, expr, cmp) \ 484 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrge(expr, llen, cmp); } while (0) 485 486 static __attribute__((unused)) 487 int expect_ptrge(const void *expr, int llen, const void *cmp) 488 { 489 int ret = !(expr >= cmp); 490 491 llen += printf(" = <%p> ", expr); 492 result(llen, ret ? FAIL : OK); 493 return ret; 494 } 495 496 #define EXPECT_PTRGT(cond, expr, cmp) \ 497 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrgt(expr, llen, cmp); } while (0) 498 499 static __attribute__((unused)) 500 int expect_ptrgt(const void *expr, int llen, const void *cmp) 501 { 502 int ret = !(expr > cmp); 503 504 llen += printf(" = <%p> ", expr); 505 result(llen, ret ? FAIL : OK); 506 return ret; 507 } 508 509 510 #define EXPECT_PTRLE(cond, expr, cmp) \ 511 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrle(expr, llen, cmp); } while (0) 512 513 static __attribute__((unused)) 514 int expect_ptrle(const void *expr, int llen, const void *cmp) 515 { 516 int ret = !(expr <= cmp); 517 518 llen += printf(" = <%p> ", expr); 519 result(llen, ret ? FAIL : OK); 520 return ret; 521 } 522 523 524 #define EXPECT_PTRLT(cond, expr, cmp) \ 525 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrlt(expr, llen, cmp); } while (0) 526 527 static __attribute__((unused)) 528 int expect_ptrlt(const void *expr, int llen, const void *cmp) 529 { 530 int ret = !(expr < cmp); 531 532 llen += printf(" = <%p> ", expr); 533 result(llen, ret ? FAIL : OK); 534 return ret; 535 } 536 537 #define EXPECT_PTRER2(cond, expr, expret, experr1, experr2) \ 538 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrerr2(expr, expret, experr1, experr2, llen); } while (0) 539 540 #define EXPECT_PTRER(cond, expr, expret, experr) \ 541 EXPECT_PTRER2(cond, expr, expret, experr, 0) 542 543 static __attribute__((unused)) 544 int expect_ptrerr2(const void *expr, const void *expret, int experr1, int experr2, int llen) 545 { 546 int ret = 0; 547 int _errno = errno; 548 549 llen += printf(" = <%p> %s ", expr, errorname(_errno)); 550 if (expr != expret || (_errno != experr1 && _errno != experr2)) { 551 ret = 1; 552 if (experr2 == 0) 553 llen += printf(" != (<%p> %s) ", expret, errorname(experr1)); 554 else 555 llen += printf(" != (<%p> %s %s) ", expret, errorname(experr1), errorname(experr2)); 556 result(llen, FAIL); 557 } else { 558 result(llen, OK); 559 } 560 return ret; 561 } 562 563 #define EXPECT_STRZR(cond, expr) \ 564 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strzr(expr, llen); } while (0) 565 566 static __attribute__((unused)) 567 int expect_strzr(const char *expr, int llen) 568 { 569 int ret = 0; 570 571 llen += printf(" = <%s> ", expr ? expr : "(null)"); 572 if (expr) { 573 ret = 1; 574 result(llen, FAIL); 575 } else { 576 result(llen, OK); 577 } 578 return ret; 579 } 580 581 582 #define EXPECT_STRNZ(cond, expr) \ 583 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strnz(expr, llen); } while (0) 584 585 static __attribute__((unused)) 586 int expect_strnz(const char *expr, int llen) 587 { 588 int ret = 0; 589 590 llen += printf(" = <%s> ", expr ? expr : "(null)"); 591 if (!expr) { 592 ret = 1; 593 result(llen, FAIL); 594 } else { 595 result(llen, OK); 596 } 597 return ret; 598 } 599 600 601 #define EXPECT_STREQ(cond, expr, cmp) \ 602 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_streq(expr, llen, cmp); } while (0) 603 604 static __attribute__((unused)) 605 int expect_streq(const char *expr, int llen, const char *cmp) 606 { 607 int ret = 0; 608 609 llen += printf(" = <%s> ", expr); 610 if (strcmp(expr, cmp) != 0) { 611 ret = 1; 612 result(llen, FAIL); 613 } else { 614 result(llen, OK); 615 } 616 return ret; 617 } 618 619 620 #define EXPECT_STRNE(cond, expr, cmp) \ 621 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strne(expr, llen, cmp); } while (0) 622 623 static __attribute__((unused)) 624 int expect_strne(const char *expr, int llen, const char *cmp) 625 { 626 int ret = 0; 627 628 llen += printf(" = <%s> ", expr); 629 if (strcmp(expr, cmp) == 0) { 630 ret = 1; 631 result(llen, FAIL); 632 } else { 633 result(llen, OK); 634 } 635 return ret; 636 } 637 638 #define EXPECT_STRBUFEQ(cond, expr, buf, val, cmp) \ 639 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_str_buf_eq(expr, buf, val, llen, cmp); } while (0) 640 641 static __attribute__((unused)) 642 int expect_str_buf_eq(size_t expr, const char *buf, size_t val, int llen, const char *cmp) 643 { 644 llen += printf(" = %lu <%s> ", (unsigned long)expr, buf); 645 if (strcmp(buf, cmp) != 0) { 646 result(llen, FAIL); 647 return 1; 648 } 649 if (expr != val) { 650 result(llen, FAIL); 651 return 1; 652 } 653 654 result(llen, OK); 655 return 0; 656 } 657 658 #define EXPECT_STRTOX(cond, func, input, base, expected, chars, expected_errno) \ 659 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strtox(llen, func, input, base, expected, chars, expected_errno); } while (0) 660 661 static __attribute__((unused)) 662 int expect_strtox(int llen, void *func, const char *input, int base, intmax_t expected, int expected_chars, int expected_errno) 663 { 664 char *endptr; 665 int actual_errno, actual_chars; 666 intmax_t r; 667 668 errno = 0; 669 if (func == strtol) { 670 r = strtol(input, &endptr, base); 671 } else if (func == strtoul) { 672 r = strtoul(input, &endptr, base); 673 } else { 674 result(llen, FAIL); 675 return 1; 676 } 677 actual_errno = errno; 678 actual_chars = endptr - input; 679 680 llen += printf(" %lld = %lld", (long long)expected, (long long)r); 681 if (r != expected) { 682 result(llen, FAIL); 683 return 1; 684 } 685 if (expected_chars == -1) { 686 if (*endptr != '\0') { 687 result(llen, FAIL); 688 return 1; 689 } 690 } else if (expected_chars != actual_chars) { 691 result(llen, FAIL); 692 return 1; 693 } 694 if (actual_errno != expected_errno) { 695 result(llen, FAIL); 696 return 1; 697 } 698 699 result(llen, OK); 700 return 0; 701 } 702 703 /* declare tests based on line numbers. There must be exactly one test per line. */ 704 #define CASE_TEST(name) \ 705 case __LINE__: llen += printf("%d %s", test, #name); 706 707 __attribute__((constructor)) 708 static void constructor1(void) 709 { 710 constructor_test_value |= 1 << 0; 711 } 712 713 __attribute__((constructor)) 714 static void constructor2(int argc, char **argv, char **envp) 715 { 716 if (argc && argv && envp) 717 constructor_test_value |= 1 << 1; 718 } 719 720 int test_program_invocation_name(void) 721 { 722 char buf[100]; 723 char *dirsep; 724 ssize_t r; 725 int fd; 726 727 fd = open("/proc/self/cmdline", O_RDONLY); 728 if (fd == -1) 729 return 1; 730 731 r = read(fd, buf, sizeof(buf)); 732 close(fd); 733 if (r < 1 || r == sizeof(buf)) 734 return 1; 735 736 buf[r - 1] = '\0'; 737 738 if (strcmp(program_invocation_name, buf) != 0) 739 return 1; 740 741 dirsep = strrchr(buf, '/'); 742 if (!dirsep || dirsep[1] == '\0') 743 return 1; 744 745 if (strcmp(program_invocation_short_name, dirsep + 1) != 0) 746 return 1; 747 748 return 0; 749 } 750 751 int run_startup(int min, int max) 752 { 753 int test; 754 int ret = 0; 755 /* kernel at least passes HOME and TERM, shell passes more */ 756 int env_total = 2; 757 /* checking NULL for argv/argv0, environ and _auxv is not enough, let's compare with sbrk(0) or &end */ 758 extern char end; 759 char *brk = sbrk(0) != (void *)-1 ? sbrk(0) : &end; 760 /* differ from nolibc, both glibc and musl have no global _auxv */ 761 const unsigned long *test_auxv = (void *)-1; 762 #ifdef NOLIBC 763 test_auxv = _auxv; 764 #endif 765 bool proc = access("/proc", R_OK) == 0; 766 767 for (test = min; test >= 0 && test <= max; test++) { 768 int llen = 0; /* line length */ 769 770 /* avoid leaving empty lines below, this will insert holes into 771 * test numbers. 772 */ 773 switch (test + __LINE__ + 1) { 774 CASE_TEST(argc); EXPECT_GE(1, test_argc, 1); break; 775 CASE_TEST(argv_addr); EXPECT_PTRGT(1, test_argv, brk); break; 776 CASE_TEST(argv_environ); EXPECT_PTRLT(1, test_argv, environ); break; 777 CASE_TEST(argv_total); EXPECT_EQ(1, environ - test_argv - 1, test_argc ?: 1); break; 778 CASE_TEST(argv0_addr); EXPECT_PTRGT(1, argv0, brk); break; 779 CASE_TEST(argv0_str); EXPECT_STRNZ(1, argv0 > brk ? argv0 : NULL); break; 780 CASE_TEST(argv0_len); EXPECT_GE(1, argv0 > brk ? strlen(argv0) : 0, 1); break; 781 CASE_TEST(environ_addr); EXPECT_PTRGT(1, environ, brk); break; 782 CASE_TEST(environ_envp); EXPECT_PTREQ(1, environ, test_envp); break; 783 CASE_TEST(environ_auxv); EXPECT_PTRLT(test_auxv != (void *)-1, environ, test_auxv); break; 784 CASE_TEST(environ_total); EXPECT_GE(test_auxv != (void *)-1, (void *)test_auxv - (void *)environ - 1, env_total); break; 785 CASE_TEST(environ_HOME); EXPECT_PTRNZ(1, getenv("HOME")); break; 786 CASE_TEST(auxv_addr); EXPECT_PTRGT(test_auxv != (void *)-1, test_auxv, brk); break; 787 CASE_TEST(auxv_AT_UID); EXPECT_EQ(1, getauxval(AT_UID), getuid()); break; 788 CASE_TEST(constructor); EXPECT_EQ(is_nolibc, constructor_test_value, 0x3); break; 789 CASE_TEST(linkage_errno); EXPECT_PTREQ(1, linkage_test_errno_addr(), &errno); break; 790 CASE_TEST(linkage_constr); EXPECT_EQ(1, linkage_test_constructor_test_value, 0x3); break; 791 CASE_TEST(prog_name); EXPECT_ZR(proc, test_program_invocation_name()); break; 792 case __LINE__: 793 return ret; /* must be last */ 794 /* note: do not set any defaults so as to permit holes above */ 795 } 796 } 797 return ret; 798 } 799 800 801 /* used by some syscall tests below */ 802 int test_getdents64(const char *dir) 803 { 804 char buffer[4096]; 805 int fd, ret; 806 int err; 807 808 ret = fd = open(dir, O_RDONLY | O_DIRECTORY, 0); 809 if (ret < 0) 810 return ret; 811 812 ret = getdents64(fd, (void *)buffer, sizeof(buffer)); 813 err = errno; 814 close(fd); 815 816 errno = err; 817 return ret; 818 } 819 820 static int test_dirent(void) 821 { 822 int comm = 0, cmdline = 0; 823 struct dirent dirent, *result; 824 DIR *dir; 825 int ret; 826 827 dir = opendir("/proc/self"); 828 if (!dir) 829 return 1; 830 831 while (1) { 832 errno = 0; 833 ret = readdir_r(dir, &dirent, &result); 834 if (ret != 0) 835 return 1; 836 if (!result) 837 break; 838 839 if (strcmp(dirent.d_name, "comm") == 0) 840 comm++; 841 else if (strcmp(dirent.d_name, "cmdline") == 0) 842 cmdline++; 843 } 844 845 if (errno) 846 return 1; 847 848 ret = closedir(dir); 849 if (ret) 850 return 1; 851 852 if (comm != 1 || cmdline != 1) 853 return 1; 854 855 return 0; 856 } 857 858 int test_getrandom(void) 859 { 860 uint64_t rng = 0; 861 ssize_t ret; 862 863 ret = getrandom(&rng, sizeof(rng), GRND_NONBLOCK); 864 if (ret == -1 && errno == EAGAIN) 865 return 0; /* No entropy available yet */ 866 867 if (ret != sizeof(rng)) 868 return ret; 869 870 if (!rng) { 871 errno = EINVAL; 872 return -1; 873 } 874 875 return 0; 876 } 877 878 int test_getpagesize(void) 879 { 880 int x = getpagesize(); 881 int c; 882 883 if (x < 0) 884 return x; 885 886 #if defined(__x86_64__) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) 887 /* 888 * x86 family is always 4K page. 889 */ 890 c = (x == 4096); 891 #elif defined(__aarch64__) 892 /* 893 * Linux aarch64 supports three values of page size: 4K, 16K, and 64K 894 * which are selected at kernel compilation time. 895 */ 896 c = (x == 4096 || x == (16 * 1024) || x == (64 * 1024)); 897 #else 898 /* 899 * Assuming other architectures must have at least 4K page. 900 */ 901 c = (x >= 4096); 902 #endif 903 904 return !c; 905 } 906 907 int test_file_stream(void) 908 { 909 FILE *f; 910 int r; 911 912 f = fopen("/dev/null", "r"); 913 if (!f) 914 return -1; 915 916 errno = 0; 917 r = fwrite("foo", 1, 3, f); 918 if (r != 0 || ((is_nolibc || is_glibc) && errno != EBADF)) { 919 fclose(f); 920 return -1; 921 } 922 923 r = fclose(f); 924 if (r == EOF) 925 return -1; 926 927 return 0; 928 } 929 930 int test_file_stream_wsr(void) 931 { 932 const char dataout[] = "foo"; 933 const size_t datasz = sizeof(dataout); 934 char datain[datasz]; 935 int fd, r; 936 FILE *f; 937 938 fd = open("/tmp", O_TMPFILE | O_RDWR, 0644); 939 if (fd == -1) 940 return -1; 941 942 f = fdopen(fd, "w+"); 943 if (!f) 944 return -1; 945 946 errno = 0; 947 r = fwrite(dataout, 1, datasz, f); 948 if (r != datasz) 949 return -1; 950 951 /* Attempt to read from the file without rewinding, 952 * we should read 0 items. 953 */ 954 r = fread(datain, 1, datasz, f); 955 if (r) 956 return -1; 957 958 /* Rewind the file to the start */ 959 r = fseek(f, 0, SEEK_SET); 960 if (r) 961 return -1; 962 963 /* Attempt to read back more than was written to 964 * make sure we handle short reads properly. 965 * fread() should return the number of complete items. 966 */ 967 r = fread(datain, 1, datasz + 1, f); 968 if (r != datasz) 969 return -1; 970 971 /* Data we read should match the data we just wrote */ 972 if (memcmp(datain, dataout, datasz) != 0) 973 return -1; 974 975 r = fclose(f); 976 if (r) 977 return -1; 978 979 return 0; 980 } 981 982 enum fork_type { 983 FORK_STANDARD, 984 FORK_VFORK, 985 }; 986 987 int test_fork(enum fork_type type) 988 { 989 int status; 990 pid_t pid; 991 992 /* flush the printf buffer to avoid child flush it */ 993 fflush(stdout); 994 fflush(stderr); 995 996 switch (type) { 997 case FORK_STANDARD: 998 pid = fork(); 999 break; 1000 case FORK_VFORK: 1001 pid = vfork(); 1002 break; 1003 default: 1004 return 1; 1005 } 1006 1007 switch (pid) { 1008 case -1: 1009 return 1; 1010 1011 case 0: 1012 _exit(123); 1013 1014 default: 1015 pid = waitpid(pid, &status, 0); 1016 1017 return pid == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 123; 1018 } 1019 } 1020 1021 int test_stat_timestamps(void) 1022 { 1023 struct stat st; 1024 1025 if (sizeof(st.st_atim.tv_sec) != sizeof(st.st_atime)) 1026 return 1; 1027 1028 if (stat("/proc/self/", &st) && stat(argv0, &st) && stat("/", &st)) 1029 return 1; 1030 1031 if (st.st_atim.tv_sec != st.st_atime || st.st_atim.tv_nsec > 1000000000) 1032 return 1; 1033 1034 if (st.st_mtim.tv_sec != st.st_mtime || st.st_mtim.tv_nsec > 1000000000) 1035 return 1; 1036 1037 if (st.st_ctim.tv_sec != st.st_ctime || st.st_ctim.tv_nsec > 1000000000) 1038 return 1; 1039 1040 return 0; 1041 } 1042 1043 int test_timer(void) 1044 { 1045 struct itimerspec timerspec; 1046 struct sigevent evp; 1047 timer_t timer; 1048 int ret; 1049 1050 evp.sigev_notify = SIGEV_NONE; 1051 1052 ret = timer_create(CLOCK_MONOTONIC, &evp, &timer); 1053 if (ret) 1054 return ret; 1055 1056 timerspec = (struct itimerspec) { 1057 .it_value.tv_sec = 1000000, 1058 }; 1059 ret = timer_settime(timer, 0, &timerspec, NULL); 1060 if (ret) 1061 goto err; 1062 1063 timerspec = (struct itimerspec) { 1064 .it_value.tv_sec = -1, 1065 .it_value.tv_nsec = -1, 1066 .it_interval.tv_sec = -1, 1067 .it_interval.tv_nsec = -1, 1068 }; 1069 ret = timer_gettime(timer, &timerspec); 1070 if (ret) 1071 goto err; 1072 1073 errno = EINVAL; 1074 ret = -1; 1075 1076 if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec) 1077 goto err; 1078 1079 if (timerspec.it_value.tv_sec > 1000000) 1080 goto err; 1081 1082 ret = timer_delete(timer); 1083 if (ret) 1084 return ret; 1085 1086 return 0; 1087 1088 err: 1089 timer_delete(timer); 1090 return ret; 1091 } 1092 1093 int test_timerfd(void) 1094 { 1095 struct itimerspec timerspec; 1096 int timer, ret; 1097 1098 timer = timerfd_create(CLOCK_MONOTONIC, 0); 1099 if (timer == -1) 1100 return -1; 1101 1102 timerspec = (struct itimerspec) { 1103 .it_value.tv_sec = 1000000, 1104 }; 1105 ret = timerfd_settime(timer, 0, &timerspec, NULL); 1106 if (ret) 1107 goto err; 1108 1109 timerspec = (struct itimerspec) { 1110 .it_value.tv_sec = -1, 1111 .it_value.tv_nsec = -1, 1112 .it_interval.tv_sec = -1, 1113 .it_interval.tv_nsec = -1, 1114 }; 1115 ret = timerfd_gettime(timer, &timerspec); 1116 if (ret) 1117 goto err; 1118 1119 errno = EINVAL; 1120 ret = -1; 1121 1122 if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec) 1123 goto err; 1124 1125 if (timerspec.it_value.tv_sec > 1000000) 1126 goto err; 1127 1128 ret = close(timer); 1129 if (ret) 1130 return ret; 1131 1132 return 0; 1133 1134 err: 1135 close(timer); 1136 return ret; 1137 } 1138 1139 int test_uname(void) 1140 { 1141 struct utsname buf; 1142 char osrelease[sizeof(buf.release)]; 1143 ssize_t r; 1144 int fd; 1145 1146 memset(&buf.domainname, 'P', sizeof(buf.domainname)); 1147 1148 if (uname(&buf)) 1149 return 1; 1150 1151 if (strncmp("Linux", buf.sysname, sizeof(buf.sysname))) 1152 return 1; 1153 1154 fd = open("/proc/sys/kernel/osrelease", O_RDONLY); 1155 if (fd == -1) 1156 return 1; 1157 1158 r = read(fd, osrelease, sizeof(osrelease)); 1159 if (r == -1) 1160 return 1; 1161 1162 close(fd); 1163 1164 if (osrelease[r - 1] == '\n') 1165 r--; 1166 1167 /* Validate one of the later fields to ensure field sizes are correct */ 1168 if (strncmp(osrelease, buf.release, r)) 1169 return 1; 1170 1171 /* Ensure the field domainname is set, it is missing from struct old_utsname */ 1172 if (strnlen(buf.domainname, sizeof(buf.domainname)) == sizeof(buf.domainname)) 1173 return 1; 1174 1175 return 0; 1176 } 1177 1178 int test_mmap_munmap(void) 1179 { 1180 int ret, fd, i, page_size; 1181 void *mem; 1182 size_t file_size, length, mem_length; 1183 off_t offset, pa_offset; 1184 struct stat stat_buf; 1185 const char * const files[] = { 1186 "/dev/zero", 1187 "/proc/1/exe", "/proc/self/exe", 1188 argv0, 1189 NULL 1190 }; 1191 1192 page_size = getpagesize(); 1193 if (page_size < 0) 1194 return 1; 1195 1196 /* find a right file to mmap, existed and accessible */ 1197 for (i = 0; files[i] != NULL; i++) { 1198 ret = fd = open(files[i], O_RDONLY); 1199 if (ret == -1) 1200 continue; 1201 else 1202 break; 1203 } 1204 if (ret == -1) 1205 return 1; 1206 1207 ret = stat(files[i], &stat_buf); 1208 if (ret == -1) 1209 goto end; 1210 1211 /* file size of the special /dev/zero is 0, let's assign one manually */ 1212 if (i == 0) 1213 file_size = 3*page_size; 1214 else 1215 file_size = stat_buf.st_size; 1216 1217 offset = file_size - 1; 1218 if (offset < 0) 1219 offset = 0; 1220 length = file_size - offset; 1221 pa_offset = offset & ~(page_size - 1); 1222 mem_length = length + offset - pa_offset; 1223 1224 mem = mmap(NULL, mem_length, PROT_READ, MAP_SHARED, fd, pa_offset); 1225 if (mem == MAP_FAILED) { 1226 ret = 1; 1227 goto end; 1228 } 1229 1230 mem = mremap(mem, mem_length, mem_length * 2, MREMAP_MAYMOVE, 0); 1231 if (mem == MAP_FAILED) { 1232 munmap(mem, mem_length); 1233 ret = 1; 1234 goto end; 1235 } 1236 1237 ret = munmap(mem, mem_length * 2); 1238 1239 end: 1240 close(fd); 1241 return !!ret; 1242 } 1243 1244 int test_pipe(void) 1245 { 1246 const char *const msg = "hello, nolibc"; 1247 int pipefd[2]; 1248 char buf[32]; 1249 size_t len; 1250 1251 if (pipe(pipefd) == -1) 1252 return 1; 1253 1254 write(pipefd[1], msg, strlen(msg)); 1255 close(pipefd[1]); 1256 len = read(pipefd[0], buf, sizeof(buf)); 1257 close(pipefd[0]); 1258 1259 if (len != strlen(msg)) 1260 return 1; 1261 1262 return !!memcmp(buf, msg, len); 1263 } 1264 1265 int test_rlimit(void) 1266 { 1267 struct rlimit rlim = { 1268 .rlim_cur = 1 << 20, 1269 .rlim_max = 1 << 21, 1270 }; 1271 int ret; 1272 1273 ret = setrlimit(RLIMIT_CORE, &rlim); 1274 if (ret) 1275 return -1; 1276 1277 rlim.rlim_cur = 0; 1278 rlim.rlim_max = 0; 1279 1280 ret = getrlimit(RLIMIT_CORE, &rlim); 1281 if (ret) 1282 return -1; 1283 1284 if (rlim.rlim_cur != 1 << 20) 1285 return -1; 1286 if (rlim.rlim_max != 1 << 21) 1287 return -1; 1288 1289 return 0; 1290 } 1291 1292 int test_openat(void) 1293 { 1294 int dev, null; 1295 1296 dev = openat(AT_FDCWD, "/dev", O_DIRECTORY); 1297 if (dev < 0) 1298 return -1; 1299 1300 null = openat(dev, "null", O_RDONLY); 1301 close(dev); 1302 if (null < 0) 1303 return -1; 1304 1305 close(null); 1306 return 0; 1307 } 1308 1309 int test_namespace(void) 1310 { 1311 int original_ns, new_ns, ret; 1312 ino_t original_ns_ino; 1313 struct stat stat_buf; 1314 1315 original_ns = open("/proc/self/ns/uts", O_RDONLY); 1316 if (original_ns == -1) 1317 return -1; 1318 1319 ret = fstat(original_ns, &stat_buf); 1320 if (ret) 1321 goto out; 1322 1323 original_ns_ino = stat_buf.st_ino; 1324 1325 ret = unshare(CLONE_NEWUTS); 1326 if (ret) 1327 goto out; 1328 1329 new_ns = open("/proc/self/ns/uts", O_RDONLY); 1330 if (new_ns == -1) { 1331 ret = new_ns; 1332 goto out; 1333 } 1334 1335 ret = fstat(new_ns, &stat_buf); 1336 close(new_ns); 1337 if (ret) 1338 goto out; 1339 1340 if (stat_buf.st_ino == original_ns_ino) { 1341 errno = EINVAL; 1342 ret = -1; 1343 goto out; 1344 } 1345 1346 ret = setns(original_ns, CLONE_NEWUTS); 1347 if (ret) 1348 goto out; 1349 1350 new_ns = open("/proc/self/ns/uts", O_RDONLY); 1351 if (new_ns == -1) { 1352 ret = new_ns; 1353 goto out; 1354 } 1355 1356 ret = fstat(new_ns, &stat_buf); 1357 if (ret) 1358 goto out; 1359 1360 close(new_ns); 1361 1362 if (stat_buf.st_ino != original_ns_ino) { 1363 errno = EINVAL; 1364 ret = -1; 1365 goto out; 1366 } 1367 1368 ret = 0; 1369 1370 out: 1371 close(original_ns); 1372 return ret; 1373 } 1374 1375 /* Run syscall tests between IDs <min> and <max>. 1376 * Return 0 on success, non-zero on failure. 1377 */ 1378 int run_syscall(int min, int max) 1379 { 1380 struct timeval tv; 1381 struct timezone tz; 1382 struct timespec ts; 1383 struct stat stat_buf; 1384 int euid0; 1385 int proc; 1386 int test; 1387 int tmp; 1388 struct iovec iov_one = { 1389 .iov_base = &tmp, 1390 .iov_len = 1, 1391 }; 1392 int ret = 0; 1393 void *p1, *p2; 1394 int has_gettid = 1; 1395 int has_brk; 1396 1397 /* <proc> indicates whether or not /proc is mounted */ 1398 proc = stat("/proc", &stat_buf) == 0; 1399 1400 /* this will be used to skip certain tests that can't be run unprivileged */ 1401 euid0 = geteuid() == 0; 1402 1403 /* from 2.30, glibc provides gettid() */ 1404 #if defined(__GLIBC_MINOR__) && defined(__GLIBC__) 1405 has_gettid = __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 30); 1406 #endif 1407 1408 /* on musl setting brk()/sbrk() always fails */ 1409 has_brk = brk(0) == 0; 1410 1411 for (test = min; test >= 0 && test <= max; test++) { 1412 int llen = 0; /* line length */ 1413 1414 /* avoid leaving empty lines below, this will insert holes into 1415 * test numbers. 1416 */ 1417 switch (test + __LINE__ + 1) { 1418 CASE_TEST(access); EXPECT_SYSZR(proc, access("/proc/self", R_OK)); break; 1419 CASE_TEST(access_bad); EXPECT_SYSER(proc, access("/proc/self", W_OK), -1, EPERM); break; 1420 CASE_TEST(clock_getres); EXPECT_SYSZR(1, clock_getres(CLOCK_MONOTONIC, &ts)); break; 1421 CASE_TEST(clock_gettime); EXPECT_SYSZR(1, clock_gettime(CLOCK_MONOTONIC, &ts)); break; 1422 CASE_TEST(clock_settime); EXPECT_SYSER(1, clock_settime(CLOCK_MONOTONIC, &ts), -1, EINVAL); break; 1423 CASE_TEST(getpid); EXPECT_SYSNE(1, getpid(), -1); break; 1424 CASE_TEST(getppid); EXPECT_SYSNE(1, getppid(), -1); break; 1425 CASE_TEST(gettid); EXPECT_SYSNE(has_gettid, gettid(), -1); break; 1426 CASE_TEST(getpgid_self); EXPECT_SYSNE(1, getpgid(0), -1); break; 1427 CASE_TEST(getpgid_bad); EXPECT_SYSER(1, getpgid(-1), -1, ESRCH); break; 1428 CASE_TEST(kill_0); EXPECT_SYSZR(1, kill(getpid(), 0)); break; 1429 CASE_TEST(kill_CONT); EXPECT_SYSZR(1, kill(getpid(), 0)); break; 1430 CASE_TEST(kill_BADPID); EXPECT_SYSER(1, kill(INT_MAX, 0), -1, ESRCH); break; 1431 CASE_TEST(sbrk_0); EXPECT_PTRNE(has_brk, sbrk(0), (void *)-1); break; 1432 CASE_TEST(sbrk); if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(has_brk, (p2 == (void *)-1) || p2 == p1); break; 1433 CASE_TEST(brk); EXPECT_SYSZR(has_brk, brk(sbrk(0))); break; 1434 CASE_TEST(chdir_root); EXPECT_SYSZR(1, chdir("/")); chdir(getenv("PWD")); break; 1435 CASE_TEST(chdir_dot); EXPECT_SYSZR(1, chdir(".")); break; 1436 CASE_TEST(chdir_blah); EXPECT_SYSER(1, chdir("/blah"), -1, ENOENT); break; 1437 CASE_TEST(chmod_argv0); EXPECT_SYSZR(1, chmod(argv0, 0555)); break; 1438 CASE_TEST(chmod_self); EXPECT_SYSER(proc, chmod("/proc/self", 0555), -1, EPERM); break; 1439 CASE_TEST(chown_self); EXPECT_SYSER(proc, chown("/proc/self", 0, 0), -1, EPERM); break; 1440 CASE_TEST(chroot_root); EXPECT_SYSZR(euid0, chroot("/")); break; 1441 CASE_TEST(chroot_blah); EXPECT_SYSER(1, chroot("/proc/self/blah"), -1, ENOENT); break; 1442 CASE_TEST(chroot_exe); EXPECT_SYSER(1, chroot(argv0), -1, ENOTDIR); break; 1443 CASE_TEST(clock_nanosleep); ts.tv_nsec = -1; EXPECT_EQ(1, EINVAL, clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL)); break; 1444 CASE_TEST(close_m1); EXPECT_SYSER(1, close(-1), -1, EBADF); break; 1445 CASE_TEST(close_dup); EXPECT_SYSZR(1, close(dup(0))); break; 1446 CASE_TEST(dup_0); tmp = dup(0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; 1447 CASE_TEST(dup_m1); tmp = dup(-1); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; 1448 CASE_TEST(dup2_0); tmp = dup2(0, 100); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; 1449 CASE_TEST(dup2_m1); tmp = dup2(-1, 100); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; 1450 CASE_TEST(dup3_0); tmp = dup3(0, 100, 0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; 1451 CASE_TEST(dup3_m1); tmp = dup3(-1, 100, 0); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; 1452 CASE_TEST(execve_root); EXPECT_SYSER(1, execve("/", (char*[]){ [0] = "/", [1] = NULL }, NULL), -1, EACCES); break; 1453 CASE_TEST(fchdir_stdin); EXPECT_SYSER(1, fchdir(STDIN_FILENO), -1, ENOTDIR); break; 1454 CASE_TEST(fchdir_badfd); EXPECT_SYSER(1, fchdir(-1), -1, EBADF); break; 1455 CASE_TEST(file_stream); EXPECT_SYSZR(1, test_file_stream()); break; 1456 CASE_TEST(file_stream_wsr); EXPECT_SYSZR(1, test_file_stream_wsr()); break; 1457 CASE_TEST(fork); EXPECT_SYSZR(1, test_fork(FORK_STANDARD)); break; 1458 CASE_TEST(getdents64_root); EXPECT_SYSNE(1, test_getdents64("/"), -1); break; 1459 CASE_TEST(getdents64_null); EXPECT_SYSER(1, test_getdents64("/dev/null"), -1, ENOTDIR); break; 1460 CASE_TEST(directories); EXPECT_SYSZR(is_nolibc && proc, test_dirent()); break; 1461 CASE_TEST(getrandom); EXPECT_SYSZR(1, test_getrandom()); break; 1462 CASE_TEST(gettimeofday_tv); EXPECT_SYSZR(1, gettimeofday(&tv, NULL)); break; 1463 CASE_TEST(gettimeofday_tv_tz);EXPECT_SYSZR(1, gettimeofday(&tv, &tz)); break; 1464 CASE_TEST(getpagesize); EXPECT_SYSZR(1, test_getpagesize()); break; 1465 CASE_TEST(ioctl_tiocinq); EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break; 1466 CASE_TEST(link_root1); EXPECT_SYSER(1, link("/", "/"), -1, EEXIST); break; 1467 CASE_TEST(link_blah); EXPECT_SYSER(1, link("/proc/self/blah", "/blah"), -1, ENOENT); break; 1468 CASE_TEST(link_dir); EXPECT_SYSER(euid0, link("/", "/blah"), -1, EPERM); break; 1469 CASE_TEST(link_cross); EXPECT_SYSER(proc, link("/proc/self/cmdline", "/blah"), -1, EXDEV); break; 1470 CASE_TEST(lseek_m1); EXPECT_SYSER(1, lseek(-1, 0, SEEK_SET), -1, EBADF); break; 1471 CASE_TEST(lseek_0); EXPECT_SYSER(1, lseek(0, 0, SEEK_SET), -1, ESPIPE); break; 1472 CASE_TEST(mkdir_root); EXPECT_SYSER(1, mkdir("/", 0755), -1, EEXIST); break; 1473 CASE_TEST(mmap_bad); EXPECT_PTRER(1, mmap(NULL, 0, PROT_READ, MAP_PRIVATE, 0, 0), MAP_FAILED, EINVAL); break; 1474 CASE_TEST(munmap_bad); EXPECT_SYSER(1, munmap(NULL, 0), -1, EINVAL); break; 1475 CASE_TEST(mmap_munmap_good); EXPECT_SYSZR(1, test_mmap_munmap()); break; 1476 CASE_TEST(nanosleep); ts.tv_nsec = -1; EXPECT_SYSER(1, nanosleep(&ts, NULL), -1, EINVAL); break; 1477 CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", O_RDONLY), -1); if (tmp != -1) close(tmp); break; 1478 CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", O_RDONLY), -1, ENOENT); if (tmp != -1) close(tmp); break; 1479 CASE_TEST(openat_dir); EXPECT_SYSZR(1, test_openat()); break; 1480 CASE_TEST(pipe); EXPECT_SYSZR(1, test_pipe()); break; 1481 CASE_TEST(poll_null); EXPECT_SYSZR(1, poll(NULL, 0, 0)); break; 1482 CASE_TEST(poll_stdout); EXPECT_SYSNE(1, ({ struct pollfd fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break; 1483 CASE_TEST(poll_fault); EXPECT_SYSER(1, poll(NULL, 1, 0), -1, EFAULT); break; 1484 CASE_TEST(prctl); EXPECT_SYSER(1, prctl(PR_SET_NAME, (unsigned long)NULL, 0, 0, 0), -1, EFAULT); break; 1485 CASE_TEST(read_badf); EXPECT_SYSER(1, read(-1, &tmp, 1), -1, EBADF); break; 1486 CASE_TEST(rlimit); EXPECT_SYSZR(1, test_rlimit()); break; 1487 CASE_TEST(rmdir_blah); EXPECT_SYSER(1, rmdir("/blah"), -1, ENOENT); break; 1488 CASE_TEST(sched_yield); EXPECT_SYSZR(1, sched_yield()); break; 1489 CASE_TEST(select_null); EXPECT_SYSZR(1, ({ struct timeval tv = { 0 }; select(0, NULL, NULL, NULL, &tv); })); break; 1490 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; 1491 CASE_TEST(select_fault); EXPECT_SYSER(1, select(1, (void *)1, NULL, NULL, 0), -1, EFAULT); break; 1492 CASE_TEST(stat_blah); EXPECT_SYSER(1, stat("/proc/self/blah", &stat_buf), -1, ENOENT); break; 1493 CASE_TEST(stat_fault); EXPECT_SYSER(1, stat(NULL, &stat_buf), -1, EFAULT); break; 1494 CASE_TEST(stat_rdev); EXPECT_SYSZR(1, ({ int ret = stat("/dev/null", &stat_buf); ret ?: stat_buf.st_rdev != makedev(1, 3); })); break; 1495 CASE_TEST(stat_timestamps); EXPECT_SYSZR(1, test_stat_timestamps()); break; 1496 CASE_TEST(symlink_root); EXPECT_SYSER(1, symlink("/", "/"), -1, EEXIST); break; 1497 CASE_TEST(timer); EXPECT_SYSZR(1, test_timer()); break; 1498 CASE_TEST(timerfd); EXPECT_SYSZR(1, test_timerfd()); break; 1499 CASE_TEST(uname); EXPECT_SYSZR(proc, test_uname()); break; 1500 CASE_TEST(uname_fault); EXPECT_SYSER(1, uname(NULL), -1, EFAULT); break; 1501 CASE_TEST(unlink_root); EXPECT_SYSER(1, unlink("/"), -1, EISDIR); break; 1502 CASE_TEST(unlink_blah); EXPECT_SYSER(1, unlink("/proc/self/blah"), -1, ENOENT); break; 1503 CASE_TEST(vfork); EXPECT_SYSZR(1, test_fork(FORK_VFORK)); break; 1504 CASE_TEST(wait_child); EXPECT_SYSER(1, wait(&tmp), -1, ECHILD); break; 1505 CASE_TEST(waitpid_min); EXPECT_SYSER(1, waitpid(INT_MIN, &tmp, WNOHANG), -1, ESRCH); break; 1506 CASE_TEST(waitpid_child); EXPECT_SYSER(1, waitpid(getpid(), &tmp, WNOHANG), -1, ECHILD); break; 1507 CASE_TEST(write_badf); EXPECT_SYSER(1, write(-1, &tmp, 1), -1, EBADF); break; 1508 CASE_TEST(write_zero); EXPECT_SYSZR(1, write(1, &tmp, 0)); break; 1509 CASE_TEST(readv_badf); EXPECT_SYSER(1, readv(-1, &iov_one, 1), -1, EBADF); break; 1510 CASE_TEST(readv_zero); EXPECT_SYSZR(1, readv(0, NULL, 0)); break; 1511 CASE_TEST(writev_badf); EXPECT_SYSER(1, writev(-1, &iov_one, 1), -1, EBADF); break; 1512 CASE_TEST(writev_zero); EXPECT_SYSZR(1, writev(1, NULL, 0)); break; 1513 CASE_TEST(ptrace); tmp = ptrace(PTRACE_CONT, getpid(), NULL, NULL); EXPECT_SYSER(tmp != -1 && errno != ENOSYS, tmp, -1, EFAULT); break; 1514 CASE_TEST(syscall_noargs); EXPECT_SYSEQ(1, syscall(__NR_getpid), getpid()); break; 1515 CASE_TEST(syscall_args); EXPECT_SYSER(1, syscall(__NR_statx, 0, NULL, 0, 0, NULL), -1, EFAULT); break; 1516 CASE_TEST(_syscall_noargs); EXPECT_SYSEQ(is_nolibc, _syscall(__NR_getpid), getpid()); break; 1517 CASE_TEST(_syscall_args); EXPECT_SYSEQ(is_nolibc, _syscall(__NR_statx, 0, NULL, 0, 0, NULL), -EFAULT); break; 1518 CASE_TEST(namespace); EXPECT_SYSZR(euid0 && proc, test_namespace()); break; 1519 case __LINE__: 1520 return ret; /* must be last */ 1521 /* note: do not set any defaults so as to permit holes above */ 1522 } 1523 } 1524 return ret; 1525 } 1526 1527 int test_difftime(void) 1528 { 1529 if (difftime(200., 100.) != 100.) 1530 return 1; 1531 1532 if (difftime(100., 200.) != -100.) 1533 return 1; 1534 1535 return 0; 1536 } 1537 1538 int test_time_types(void) 1539 { 1540 #ifdef NOLIBC 1541 struct __kernel_timespec kts; 1542 struct timespec ts; 1543 1544 if (!__builtin_types_compatible_p(time_t, __kernel_time64_t)) 1545 return 1; 1546 1547 if (sizeof(ts) != sizeof(kts)) 1548 return 1; 1549 1550 if (!__builtin_types_compatible_p(__typeof__(ts.tv_sec), __typeof__(kts.tv_sec))) 1551 return 1; 1552 1553 if (!__builtin_types_compatible_p(__typeof__(ts.tv_nsec), __typeof__(kts.tv_nsec))) 1554 return 1; 1555 1556 if (offsetof(__typeof__(ts), tv_sec) != offsetof(__typeof__(kts), tv_sec)) 1557 return 1; 1558 1559 if (offsetof(__typeof__(ts), tv_nsec) != offsetof(__typeof__(kts), tv_nsec)) 1560 return 1; 1561 #endif /* NOLIBC */ 1562 1563 return 0; 1564 } 1565 1566 int test_malloc(void) 1567 { 1568 size_t sz_array1, sz_array2, sz_array3; 1569 int *array1, *array2, *array3; 1570 int pagesize = getpagesize(); 1571 size_t idx; 1572 1573 if (pagesize < 0) 1574 return 1; 1575 1576 /* Dependent on the page size, as that is the granularity of our allocator. */ 1577 sz_array1 = pagesize / 2; 1578 array1 = malloc(sz_array1 * sizeof(*array1)); 1579 if (!array1) 1580 return 2; 1581 1582 for (idx = 0; idx < sz_array1; idx++) 1583 array1[idx] = idx; 1584 1585 sz_array2 = pagesize * 2; 1586 array2 = calloc(sz_array2, sizeof(*array2)); 1587 if (!array2) { 1588 free(array1); 1589 return 3; 1590 } 1591 1592 for (idx = 0; idx < sz_array2; idx++) { 1593 if (array2[idx] != 0) { 1594 free(array2); 1595 return 4; 1596 } 1597 array2[idx] = idx + sz_array1; 1598 } 1599 1600 /* Resize array1 into array3 and append array2 at the end. */ 1601 sz_array3 = sz_array1 + sz_array2; 1602 array3 = realloc(array1, sz_array3 * sizeof(*array3)); 1603 if (!array3) { 1604 free(array2); 1605 free(array1); 1606 return 5; 1607 } 1608 memcpy(array3 + sz_array1, array2, sizeof(*array2) * sz_array2); 1609 free(array2); 1610 1611 /* The contents must be contiguous now. */ 1612 for (idx = 0; idx < sz_array3; idx++) 1613 if (array3[idx] != (int)idx) 1614 return 6; 1615 1616 free(array3); 1617 return 0; 1618 } 1619 1620 int run_stdlib(int min, int max) 1621 { 1622 int test; 1623 int ret = 0; 1624 1625 for (test = min; test >= 0 && test <= max; test++) { 1626 int llen = 0; /* line length */ 1627 1628 /* For functions that take a long buffer, like strlcat() 1629 * Add some more chars after the \0, to test functions that overwrite the buffer set 1630 * the \0 at the exact right position. 1631 */ 1632 char buf[11] = "test123456"; 1633 buf[4] = '\0'; 1634 1635 1636 /* avoid leaving empty lines below, this will insert holes into 1637 * test numbers. 1638 */ 1639 switch (test + __LINE__ + 1) { 1640 CASE_TEST(getenv_TERM); EXPECT_STRNZ(1, getenv("TERM")); break; 1641 CASE_TEST(getenv_blah); EXPECT_STRZR(1, getenv("blah")); break; 1642 CASE_TEST(setcmp_blah_blah); EXPECT_EQ(1, strcmp("blah", "blah"), 0); break; 1643 CASE_TEST(setcmp_blah_blah2); EXPECT_NE(1, strcmp("blah", "blah2"), 0); break; 1644 CASE_TEST(setncmp_blah_blah); EXPECT_EQ(1, strncmp("blah", "blah", 10), 0); break; 1645 CASE_TEST(setncmp_blah_blah4); EXPECT_EQ(1, strncmp("blah", "blah4", 4), 0); break; 1646 CASE_TEST(setncmp_blah_blah5); EXPECT_NE(1, strncmp("blah", "blah5", 5), 0); break; 1647 CASE_TEST(setncmp_blah_blah6); EXPECT_NE(1, strncmp("blah", "blah6", 6), 0); break; 1648 CASE_TEST(strchr_foobar_o); EXPECT_STREQ(1, strchr("foobar", 'o'), "oobar"); break; 1649 CASE_TEST(strchr_foobar_z); EXPECT_STRZR(1, strchr("foobar", 'z')); break; 1650 CASE_TEST(strrchr_foobar_o); EXPECT_STREQ(1, strrchr("foobar", 'o'), "obar"); break; 1651 CASE_TEST(strrchr_foobar_z); EXPECT_STRZR(1, strrchr("foobar", 'z')); break; 1652 CASE_TEST(strlcat_0); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 0), buf, 3, "test"); break; 1653 CASE_TEST(strlcat_1); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 1), buf, 4, "test"); break; 1654 CASE_TEST(strlcat_5); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 5), buf, 7, "test"); break; 1655 CASE_TEST(strlcat_6); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 6), buf, 7, "testb"); break; 1656 CASE_TEST(strlcat_7); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 7), buf, 7, "testba"); break; 1657 CASE_TEST(strlcat_8); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 8), buf, 7, "testbar"); break; 1658 CASE_TEST(strlcpy_0); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 0), buf, 3, "test"); break; 1659 CASE_TEST(strlcpy_1); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 1), buf, 3, ""); break; 1660 CASE_TEST(strlcpy_2); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 2), buf, 3, "b"); break; 1661 CASE_TEST(strlcpy_3); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 3), buf, 3, "ba"); break; 1662 CASE_TEST(strlcpy_4); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 4), buf, 3, "bar"); break; 1663 CASE_TEST(strstr_foobar_foo); EXPECT_STREQ(1, strstr("foobar", "foo"), "foobar"); break; 1664 CASE_TEST(strstr_foobar_bar); EXPECT_STREQ(1, strstr("foobar", "bar"), "bar"); break; 1665 CASE_TEST(strstr_foobar_baz); EXPECT_PTREQ(1, strstr("foobar", "baz"), NULL); break; 1666 CASE_TEST(memcmp_20_20); EXPECT_EQ(1, memcmp("aaa\x20", "aaa\x20", 4), 0); break; 1667 CASE_TEST(memcmp_20_60); EXPECT_LT(1, memcmp("aaa\x20", "aaa\x60", 4), 0); break; 1668 CASE_TEST(memcmp_60_20); EXPECT_GT(1, memcmp("aaa\x60", "aaa\x20", 4), 0); break; 1669 CASE_TEST(memcmp_20_e0); EXPECT_LT(1, memcmp("aaa\x20", "aaa\xe0", 4), 0); break; 1670 CASE_TEST(memcmp_e0_20); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x20", 4), 0); break; 1671 CASE_TEST(memcmp_80_e0); EXPECT_LT(1, memcmp("aaa\x80", "aaa\xe0", 4), 0); break; 1672 CASE_TEST(memcmp_e0_80); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x80", 4), 0); break; 1673 CASE_TEST(limit_int8_max); EXPECT_EQ(1, INT8_MAX, (int8_t) 0x7f); break; 1674 CASE_TEST(limit_int8_min); EXPECT_EQ(1, INT8_MIN, (int8_t) 0x80); break; 1675 CASE_TEST(limit_uint8_max); EXPECT_EQ(1, UINT8_MAX, (uint8_t) 0xff); break; 1676 CASE_TEST(limit_int16_max); EXPECT_EQ(1, INT16_MAX, (int16_t) 0x7fff); break; 1677 CASE_TEST(limit_int16_min); EXPECT_EQ(1, INT16_MIN, (int16_t) 0x8000); break; 1678 CASE_TEST(limit_uint16_max); EXPECT_EQ(1, UINT16_MAX, (uint16_t) 0xffff); break; 1679 CASE_TEST(limit_int32_max); EXPECT_EQ(1, INT32_MAX, (int32_t) 0x7fffffff); break; 1680 CASE_TEST(limit_int32_min); EXPECT_EQ(1, INT32_MIN, (int32_t) 0x80000000); break; 1681 CASE_TEST(limit_uint32_max); EXPECT_EQ(1, UINT32_MAX, (uint32_t) 0xffffffff); break; 1682 CASE_TEST(limit_int64_max); EXPECT_EQ(1, INT64_MAX, (int64_t) 0x7fffffffffffffff); break; 1683 CASE_TEST(limit_int64_min); EXPECT_EQ(1, INT64_MIN, (int64_t) 0x8000000000000000); break; 1684 CASE_TEST(limit_uint64_max); EXPECT_EQ(1, UINT64_MAX, (uint64_t) 0xffffffffffffffff); break; 1685 CASE_TEST(limit_int_least8_max); EXPECT_EQ(1, INT_LEAST8_MAX, (int_least8_t) 0x7f); break; 1686 CASE_TEST(limit_int_least8_min); EXPECT_EQ(1, INT_LEAST8_MIN, (int_least8_t) 0x80); break; 1687 CASE_TEST(limit_uint_least8_max); EXPECT_EQ(1, UINT_LEAST8_MAX, (uint_least8_t) 0xff); break; 1688 CASE_TEST(limit_int_least16_max); EXPECT_EQ(1, INT_LEAST16_MAX, (int_least16_t) 0x7fff); break; 1689 CASE_TEST(limit_int_least16_min); EXPECT_EQ(1, INT_LEAST16_MIN, (int_least16_t) 0x8000); break; 1690 CASE_TEST(limit_uint_least16_max); EXPECT_EQ(1, UINT_LEAST16_MAX, (uint_least16_t) 0xffff); break; 1691 CASE_TEST(limit_int_least32_max); EXPECT_EQ(1, INT_LEAST32_MAX, (int_least32_t) 0x7fffffff); break; 1692 CASE_TEST(limit_int_least32_min); EXPECT_EQ(1, INT_LEAST32_MIN, (int_least32_t) 0x80000000); break; 1693 CASE_TEST(limit_uint_least32_max); EXPECT_EQ(1, UINT_LEAST32_MAX, (uint_least32_t) 0xffffffffU); break; 1694 CASE_TEST(limit_int_least64_min); EXPECT_EQ(1, INT_LEAST64_MIN, (int_least64_t) 0x8000000000000000LL); break; 1695 CASE_TEST(limit_int_least64_max); EXPECT_EQ(1, INT_LEAST64_MAX, (int_least64_t) 0x7fffffffffffffffLL); break; 1696 CASE_TEST(limit_uint_least64_max); EXPECT_EQ(1, UINT_LEAST64_MAX, (uint_least64_t) 0xffffffffffffffffULL); break; 1697 CASE_TEST(limit_int_fast8_max); EXPECT_EQ(1, INT_FAST8_MAX, (int_fast8_t) 0x7f); break; 1698 CASE_TEST(limit_int_fast8_min); EXPECT_EQ(1, INT_FAST8_MIN, (int_fast8_t) 0x80); break; 1699 CASE_TEST(limit_uint_fast8_max); EXPECT_EQ(1, UINT_FAST8_MAX, (uint_fast8_t) 0xff); break; 1700 CASE_TEST(limit_int_fast16_min); EXPECT_EQ(1, INT_FAST16_MIN, (int_fast16_t) SINT_MIN_OF_TYPE(int_fast16_t)); break; 1701 CASE_TEST(limit_int_fast16_max); EXPECT_EQ(1, INT_FAST16_MAX, (int_fast16_t) SINT_MAX_OF_TYPE(int_fast16_t)); break; 1702 CASE_TEST(limit_uint_fast16_max); EXPECT_EQ(1, UINT_FAST16_MAX, (uint_fast16_t) UINTPTR_MAX); break; 1703 CASE_TEST(limit_int_fast32_min); EXPECT_EQ(1, INT_FAST32_MIN, (int_fast32_t) SINT_MIN_OF_TYPE(int_fast32_t)); break; 1704 CASE_TEST(limit_int_fast32_max); EXPECT_EQ(1, INT_FAST32_MAX, (int_fast32_t) SINT_MAX_OF_TYPE(int_fast32_t)); break; 1705 CASE_TEST(limit_uint_fast32_max); EXPECT_EQ(1, UINT_FAST32_MAX, (uint_fast32_t) UINTPTR_MAX); break; 1706 CASE_TEST(limit_int_fast64_min); EXPECT_EQ(1, INT_FAST64_MIN, (int_fast64_t) INT64_MIN); break; 1707 CASE_TEST(limit_int_fast64_max); EXPECT_EQ(1, INT_FAST64_MAX, (int_fast64_t) INT64_MAX); break; 1708 CASE_TEST(limit_uint_fast64_max); EXPECT_EQ(1, UINT_FAST64_MAX, (uint_fast64_t) UINT64_MAX); break; 1709 CASE_TEST(sizeof_long_sane); EXPECT_EQ(1, sizeof(long) == 8 || sizeof(long) == 4, 1); break; 1710 CASE_TEST(limit_intptr_min); EXPECT_EQ(1, INTPTR_MIN, sizeof(long) == 8 ? (intptr_t) 0x8000000000000000LL : (intptr_t) 0x80000000); break; 1711 CASE_TEST(limit_intptr_max); EXPECT_EQ(1, INTPTR_MAX, sizeof(long) == 8 ? (intptr_t) 0x7fffffffffffffffLL : (intptr_t) 0x7fffffff); break; 1712 CASE_TEST(limit_uintptr_max); EXPECT_EQ(1, UINTPTR_MAX, sizeof(long) == 8 ? (uintptr_t) 0xffffffffffffffffULL : (uintptr_t) 0xffffffffU); break; 1713 CASE_TEST(limit_ptrdiff_min); EXPECT_EQ(1, PTRDIFF_MIN, sizeof(long) == 8 ? (ptrdiff_t) 0x8000000000000000LL : (ptrdiff_t) 0x80000000); break; 1714 CASE_TEST(limit_ptrdiff_max); EXPECT_EQ(1, PTRDIFF_MAX, sizeof(long) == 8 ? (ptrdiff_t) 0x7fffffffffffffffLL : (ptrdiff_t) 0x7fffffff); break; 1715 CASE_TEST(limit_size_max); EXPECT_EQ(1, SIZE_MAX, sizeof(long) == 8 ? (size_t) 0xffffffffffffffffULL : (size_t) 0xffffffffU); break; 1716 CASE_TEST(strtol_simple); EXPECT_STRTOX(1, strtol, "35", 10, 35, -1, 0); break; 1717 CASE_TEST(strtol_positive); EXPECT_STRTOX(1, strtol, "+35", 10, 35, -1, 0); break; 1718 CASE_TEST(strtol_negative); EXPECT_STRTOX(1, strtol, "-35", 10, -35, -1, 0); break; 1719 CASE_TEST(strtol_hex_auto); EXPECT_STRTOX(1, strtol, "0xFF", 0, 255, -1, 0); break; 1720 CASE_TEST(strtol_base36); EXPECT_STRTOX(1, strtol, "12yZ", 36, 50507, -1, 0); break; 1721 CASE_TEST(strtol_cutoff); EXPECT_STRTOX(1, strtol, "1234567890", 8, 342391, 7, 0); break; 1722 CASE_TEST(strtol_octal_auto); EXPECT_STRTOX(1, strtol, "011", 0, 9, -1, 0); break; 1723 CASE_TEST(strtol_hex_00); EXPECT_STRTOX(1, strtol, "0x00", 16, 0, -1, 0); break; 1724 CASE_TEST(strtol_hex_FF); EXPECT_STRTOX(1, strtol, "FF", 16, 255, -1, 0); break; 1725 CASE_TEST(strtol_hex_ff); EXPECT_STRTOX(1, strtol, "ff", 16, 255, -1, 0); break; 1726 CASE_TEST(strtol_hex_prefix); EXPECT_STRTOX(1, strtol, "0xFF", 16, 255, -1, 0); break; 1727 CASE_TEST(strtol_trailer); EXPECT_STRTOX(1, strtol, "35foo", 10, 35, 2, 0); break; 1728 CASE_TEST(strtol_overflow); EXPECT_STRTOX(1, strtol, "0x8000000000000000", 16, LONG_MAX, -1, ERANGE); break; 1729 CASE_TEST(strtol_underflow); EXPECT_STRTOX(1, strtol, "-0x8000000000000001", 16, LONG_MIN, -1, ERANGE); break; 1730 CASE_TEST(strtoul_negative); EXPECT_STRTOX(1, strtoul, "-0x1", 16, ULONG_MAX, 4, 0); break; 1731 CASE_TEST(strtoul_overflow); EXPECT_STRTOX(1, strtoul, "0x10000000000000000", 16, ULONG_MAX, -1, ERANGE); break; 1732 CASE_TEST(strerror_success); EXPECT_STREQ(is_nolibc, strerror(0), "errno=0"); break; 1733 CASE_TEST(strerror_EINVAL); EXPECT_STREQ(is_nolibc, strerror(EINVAL), "errno=22"); break; 1734 CASE_TEST(strerror_int_max); EXPECT_STREQ(is_nolibc, strerror(INT_MAX), "errno=2147483647"); break; 1735 CASE_TEST(strerror_int_min); EXPECT_STREQ(is_nolibc, strerror(INT_MIN), "errno=-2147483648"); break; 1736 CASE_TEST(tolower); EXPECT_EQ(1, tolower('A'), 'a'); break; 1737 CASE_TEST(tolower_noop); EXPECT_EQ(1, tolower('a'), 'a'); break; 1738 CASE_TEST(toupper); EXPECT_EQ(1, toupper('a'), 'A'); break; 1739 CASE_TEST(toupper_noop); EXPECT_EQ(1, toupper('A'), 'A'); break; 1740 CASE_TEST(abs); EXPECT_EQ(1, abs(-10), 10); break; 1741 CASE_TEST(abs_noop); EXPECT_EQ(1, abs(10), 10); break; 1742 CASE_TEST(difftime); EXPECT_ZR(1, test_difftime()); break; 1743 CASE_TEST(memchr_foobar6_o); EXPECT_STREQ(1, memchr("foobar", 'o', 6), "oobar"); break; 1744 CASE_TEST(memchr_foobar3_b); EXPECT_STRZR(1, memchr("foobar", 'b', 3)); break; 1745 CASE_TEST(time_types); EXPECT_ZR(is_nolibc, test_time_types()); break; 1746 CASE_TEST(makedev); EXPECT_EQ(1, makedev(0x12, 0x34), 0x1234); break; 1747 CASE_TEST(major); EXPECT_EQ(1, major(0x1234), 0x12); break; 1748 CASE_TEST(minor); EXPECT_EQ(1, minor(0x1234), 0x34); break; 1749 CASE_TEST(makedev_big); EXPECT_EQ(1, makedev(0x11223344, 0x55667788), 0x1122355667734488); break; 1750 CASE_TEST(major_big); EXPECT_EQ(1, major(0x1122355667734488), 0x11223344); break; 1751 CASE_TEST(minor_big); EXPECT_EQ(1, minor(0x1122355667734488), 0x55667788); break; 1752 CASE_TEST(malloc); EXPECT_ZR(1, test_malloc()); break; 1753 CASE_TEST(bswap_16); EXPECT_EQ(1, bswap_16(0x0123), 0x2301); break; 1754 CASE_TEST(bswap_32); EXPECT_EQ(1, bswap_32(0x01234567), 0x67452301); break; 1755 CASE_TEST(bswap_64); EXPECT_EQ(1, bswap_64(0x0123456789abcdef), 0xefcdab8967452301); break; 1756 CASE_TEST(htobe16); EXPECT_EQ(1, htobe16(is_le ? 0x0123 : 0x2301), 0x2301); break; 1757 CASE_TEST(htole16); EXPECT_EQ(1, htole16(is_le ? 0x0123 : 0x2301), 0x0123); break; 1758 CASE_TEST(htobe32); EXPECT_EQ(1, htobe32(is_le ? 0x01234567 : 0x67452301), 0x67452301); break; 1759 CASE_TEST(htole32); EXPECT_EQ(1, htole32(is_le ? 0x01234567 : 0x67452301), 0x01234567); break; 1760 CASE_TEST(htobe64); EXPECT_EQ(1, htobe64(is_le ? 0x0123456789000000 : 0x8967452301), 0x8967452301); break; 1761 CASE_TEST(htole64); EXPECT_EQ(1, htole64(is_le ? 0x0123456789 : 0x8967452301000000), 0x0123456789); break; 1762 1763 case __LINE__: 1764 return ret; /* must be last */ 1765 /* note: do not set any defaults so as to permit holes above */ 1766 } 1767 } 1768 return ret; 1769 } 1770 1771 #define EXPECT_VFPRINTF(cond, expected, fmt, ...) \ 1772 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_vfprintf(llen, expected, fmt, ##__VA_ARGS__); } while (0) 1773 1774 #define VFPRINTF_LEN 25 1775 static int expect_vfprintf(int llen, const char *expected, const char *fmt, ...) 1776 { 1777 char buf[VFPRINTF_LEN + 80]; 1778 unsigned int cmp_len; 1779 va_list args; 1780 ssize_t written, expected_len; 1781 1782 /* Fill and terminate buf[] to check for overlong/absent writes */ 1783 memset(buf, 0xa5, sizeof(buf) - 1); 1784 buf[sizeof(buf) - 1] = 0; 1785 1786 va_start(args, fmt); 1787 /* Limit buffer length to test truncation */ 1788 written = vsnprintf(buf, VFPRINTF_LEN + 1, fmt, args); 1789 va_end(args); 1790 1791 llen += printf(" \"%s\"", buf); 1792 1793 expected_len = strlen(expected); 1794 if (expected_len > VFPRINTF_LEN) { 1795 /* Indicate truncated in test output */ 1796 llen += printf("+"); 1797 cmp_len = VFPRINTF_LEN; 1798 } else { 1799 cmp_len = expected_len; 1800 } 1801 1802 if (memcmp(expected, buf, cmp_len) || buf[cmp_len]) { 1803 llen += printf(" should be \"%.*s\"", VFPRINTF_LEN, expected); 1804 result(llen, FAIL); 1805 return 1; 1806 } 1807 1808 if (written != expected_len) { 1809 llen += printf(" written(%d) != %d", (int)written, (int)expected_len); 1810 result(llen, FAIL); 1811 return 1; 1812 } 1813 1814 /* Check for any overwrites after the actual data. */ 1815 while (++cmp_len < sizeof(buf) - 1) { 1816 if ((unsigned char)buf[cmp_len] != 0xa5) { 1817 llen += printf(" overwrote buf[%d] with 0x%x", cmp_len, buf[cmp_len]); 1818 result(llen, FAIL); 1819 return 1; 1820 } 1821 } 1822 1823 result(llen, OK); 1824 return 0; 1825 } 1826 1827 static int test_scanf(void) 1828 { 1829 unsigned long long ull; 1830 unsigned long ul; 1831 unsigned int u; 1832 long long ll; 1833 long l; 1834 void *p; 1835 int i; 1836 1837 /* return __LINE__ to point to the specific failure */ 1838 1839 /* test EOF */ 1840 if (sscanf("", "foo") != EOF) 1841 return __LINE__; 1842 1843 /* test simple literal without placeholder */ 1844 if (sscanf("foo", "foo") != 0) 1845 return __LINE__; 1846 1847 /* test single placeholder */ 1848 if (sscanf("123", "%d", &i) != 1) 1849 return __LINE__; 1850 1851 if (i != 123) 1852 return __LINE__; 1853 1854 /* test multiple place holders and separators */ 1855 if (sscanf("a123b456c0x90", "a%db%uc%p", &i, &u, &p) != 3) 1856 return __LINE__; 1857 1858 if (i != 123) 1859 return __LINE__; 1860 1861 if (u != 456) 1862 return __LINE__; 1863 1864 if (p != (void *)0x90) 1865 return __LINE__; 1866 1867 /* test space handling */ 1868 if (sscanf("a b1", "a b%d", &i) != 1) 1869 return __LINE__; 1870 1871 if (i != 1) 1872 return __LINE__; 1873 1874 /* test literal percent */ 1875 if (sscanf("a%1", "a%%%d", &i) != 1) 1876 return __LINE__; 1877 1878 if (i != 1) 1879 return __LINE__; 1880 1881 /* test stdint.h types */ 1882 if (sscanf("1|2|3|4|5|6", 1883 "%d|%ld|%lld|%u|%lu|%llu", 1884 &i, &l, &ll, &u, &ul, &ull) != 6) 1885 return __LINE__; 1886 1887 if (i != 1 || l != 2 || ll != 3 || 1888 u != 4 || ul != 5 || ull != 6) 1889 return __LINE__; 1890 1891 return 0; 1892 } 1893 1894 static int test_printf_error(void) 1895 { 1896 int fd, ret, saved_errno; 1897 1898 fd = open("/dev/full", O_RDWR); 1899 if (fd == -1) 1900 return 1; 1901 1902 errno = 0; 1903 ret = dprintf(fd, "foo"); 1904 saved_errno = errno; 1905 close(fd); 1906 1907 if (ret != -1) 1908 return 2; 1909 1910 if (saved_errno != ENOSPC) 1911 return 3; 1912 1913 return 0; 1914 } 1915 1916 int test_asprintf(void) 1917 { 1918 char *str; 1919 int ret; 1920 1921 ret = asprintf(&str, "foo%s", "bar"); 1922 if (ret == -1) 1923 return 1; 1924 1925 if (ret != 6) { 1926 free(str); 1927 return 2; 1928 } 1929 1930 if (memcmp(str, "foobar", 6) != 0) { 1931 free(str); 1932 return 3; 1933 } 1934 1935 free(str); 1936 return 0; 1937 } 1938 1939 static int run_printf(int min, int max) 1940 { 1941 int test; 1942 int ret = 0; 1943 1944 for (test = min; test >= 0 && test <= max; test++) { 1945 int llen = 0; /* line length */ 1946 1947 /* avoid leaving empty lines below, this will insert holes into 1948 * test numbers. 1949 */ 1950 switch (test + __LINE__ + 1) { 1951 CASE_TEST(empty); EXPECT_VFPRINTF(1, "", ""); break; 1952 CASE_TEST(simple); EXPECT_VFPRINTF(1, "foo", "foo"); break; 1953 CASE_TEST(string); EXPECT_VFPRINTF(1, "foo", "%s", "foo"); break; 1954 CASE_TEST(number); EXPECT_VFPRINTF(1, "1234", "%d", 1234); break; 1955 CASE_TEST(negnumber); EXPECT_VFPRINTF(1, "-1234", "%d", -1234); break; 1956 CASE_TEST(num_sign); EXPECT_VFPRINTF(1, "| 1|+2|+3|+4|5|", "|% d|%+d|% +d|%+ d|%#d|", 1, 2, 3, 4, 5); break; 1957 CASE_TEST(unsigned); EXPECT_VFPRINTF(1, "12345", "%u", 12345); break; 1958 CASE_TEST(signed_max); EXPECT_VFPRINTF(1, "2147483647", "%i", ~0u >> 1); break; 1959 CASE_TEST(signed_min); EXPECT_VFPRINTF(1, "-2147483648", "%i", (~0u >> 1) + 1); break; 1960 CASE_TEST(unsigned_max); EXPECT_VFPRINTF(1, "4294967295", "%u", ~0u); break; 1961 CASE_TEST(char); EXPECT_VFPRINTF(1, "|c|d| e|", "|%c|%.0c|%4c|", 'c', 'd', 'e'); break; 1962 CASE_TEST(octal); EXPECT_VFPRINTF(1, "|17| 0033||", "|%o|%6.4o|%.0o|", 017, 033, 0); break; 1963 CASE_TEST(octal_max); EXPECT_VFPRINTF(1, "1777777777777777777777", "%llo", ~0ULL); break; 1964 CASE_TEST(octal_alt); EXPECT_VFPRINTF(1, "|0|01|02|034|0|0|", "|%#o|%#o|%#02o|%#02o|%#.0o|%0-#o|", 0, 1, 2, 034, 0, 0); break; 1965 CASE_TEST(hex_nolibc); EXPECT_VFPRINTF(is_nolibc, "|f|d|", "|%x|%X|", 0xf, 0xd); break; 1966 CASE_TEST(hex_libc); EXPECT_VFPRINTF(!is_nolibc, "|f|D|", "|%x|%X|", 0xf, 0xd); break; 1967 CASE_TEST(hex_alt); EXPECT_VFPRINTF(1, "|0x1| 0x2| 0|", "|%#x|%#5x|%#5x|", 1, 2, 0); break; 1968 CASE_TEST(hex_alt_prec); EXPECT_VFPRINTF(1, "| 0x02|0x03| 0x123|", "|%#5.2x|%#04x|%#6.2x|", 2, 3, 0x123); break; 1969 CASE_TEST(hex_0_alt); EXPECT_VFPRINTF(1, "|0|0000| 00|", "|%#x|%#04x|%#5.2x|", 0, 0, 0); break; 1970 CASE_TEST(pointer); EXPECT_VFPRINTF(1, "0x1", "%p", (void *) 0x1); break; 1971 CASE_TEST(pointer_NULL); EXPECT_VFPRINTF(is_nolibc || is_glibc, "|(nil)|(nil)|", "|%p|%.4p|", (void *)0, (void *)0); break; 1972 CASE_TEST(string_NULL); EXPECT_VFPRINTF(is_nolibc || is_glibc, "|(null)||(null)|", "|%s|%.5s|%.6s|", (void *)0, (void *)0, (void *)0); break; 1973 CASE_TEST(percent); EXPECT_VFPRINTF(1, "a%d42%69%", "a%%d%d%%%d%%", 42, 69); break; 1974 CASE_TEST(perc_qual); EXPECT_VFPRINTF(is_nolibc || is_glibc, "a%d2", "a%-14l%d%d", 2); break; 1975 CASE_TEST(invalid); EXPECT_VFPRINTF(is_nolibc || is_glibc, "a%12yx3%y42%P", "a%12yx%d%y%d%P", 3, 42); break; 1976 CASE_TEST(intmax_max); EXPECT_VFPRINTF(1, "9223372036854775807", "%lld", ~0ULL >> 1); break; 1977 CASE_TEST(intmax_min); EXPECT_VFPRINTF(is_nolibc || is_glibc, "-9223372036854775808", "%Li", (~0ULL >> 1) + 1); break; 1978 CASE_TEST(uintmax_max); EXPECT_VFPRINTF(1, "18446744073709551615", "%ju", ~0ULL); break; 1979 CASE_TEST(truncation); EXPECT_VFPRINTF(1, "012345678901234567890123456789", "%s", "012345678901234567890123456789"); break; 1980 CASE_TEST(string_width); EXPECT_VFPRINTF(1, " 1", "%10s", "1"); break; 1981 CASE_TEST(string_trunc); EXPECT_VFPRINTF(1, " 12345", "%10.5s", "1234567890"); break; 1982 CASE_TEST(string_var); EXPECT_VFPRINTF(1, "| ab|ef | ij|kl |", "|%*.*s|%*.*s|%*.*s|%*.*s|", 3, 2, "abcd", -3, 2, "efgh", 3, -1, "ij", -3, -1, "kl"); break; 1983 CASE_TEST(number_width); EXPECT_VFPRINTF(1, " 1", "%10d", 1); break; 1984 CASE_TEST(number_left); EXPECT_VFPRINTF(1, "|-5 |", "|%-8d|", -5); break; 1985 CASE_TEST(string_align); EXPECT_VFPRINTF(1, "|foo |", "|%-8s|", "foo"); break; 1986 CASE_TEST(width_trunc); EXPECT_VFPRINTF(1, " 1", "%30d", 1); break; 1987 CASE_TEST(width_tr_lft); EXPECT_VFPRINTF(1, "1 ", "%-30d", 1); break; 1988 CASE_TEST(number_pad); EXPECT_VFPRINTF(1, "0000000005", "%010d", 5); break; 1989 CASE_TEST(number_pad); EXPECT_VFPRINTF(1, "|0000000005|0x1234|", "|%010d|%#01x|", 5, 0x1234); break; 1990 CASE_TEST(num_pad_neg); EXPECT_VFPRINTF(1, "-000000005", "%010d", -5); break; 1991 CASE_TEST(num_pad_hex); EXPECT_VFPRINTF(1, "00fffffffb", "%010x", -5); break; 1992 CASE_TEST(num_pad_trunc);EXPECT_VFPRINTF(is_nolibc, " 0000000000000000000000000000005", "%035d", 5); break; /* max 31 '0' can be added */ 1993 CASE_TEST(num_p_tr_libc);EXPECT_VFPRINTF(!is_nolibc, "00000000000000000000000000000000005", "%035d", 5); break; 1994 CASE_TEST(number_prec); EXPECT_VFPRINTF(1, " 00005", "%10.5d", 5); break; 1995 CASE_TEST(num_prec_neg); EXPECT_VFPRINTF(1, " -00005", "%10.5d", -5); break; 1996 CASE_TEST(number_var); EXPECT_VFPRINTF(1, "| -00005|5 |", "|%*.*d|%*.*d|", 10, 5, -5, -2, -10, 5); break; 1997 CASE_TEST(num_0_prec_0); EXPECT_VFPRINTF(1, "|| |+||||", "|%.0d|% .0d|%+.0d|%.0u|%.0x|%#.0x|", 0, 0, 0, 0, 0, 0); break; 1998 CASE_TEST(errno); errno = 22; EXPECT_VFPRINTF(is_nolibc, "errno=22", "%m"); break; 1999 CASE_TEST(errno-neg); errno = -22; EXPECT_VFPRINTF(is_nolibc, "errno=-22 ", "%-12m"); break; 2000 CASE_TEST(scanf); EXPECT_ZR(1, test_scanf()); break; 2001 CASE_TEST(printf_error); EXPECT_ZR(1, test_printf_error()); break; 2002 CASE_TEST(asprintf); EXPECT_ZR(1, test_asprintf()); break; 2003 case __LINE__: 2004 return ret; /* must be last */ 2005 /* note: do not set any defaults so as to permit holes above */ 2006 } 2007 } 2008 return ret; 2009 } 2010 2011 __attribute__((no_sanitize("undefined"))) 2012 static int smash_stack(void) 2013 { 2014 char buf[100]; 2015 volatile char *ptr = buf; 2016 size_t i; 2017 2018 for (i = 0; i < 200; i++) 2019 ptr[i] = 'P'; 2020 2021 return 1; 2022 } 2023 2024 static int run_protection(int min __attribute__((unused)), 2025 int max __attribute__((unused))) 2026 { 2027 pid_t pid; 2028 int llen = 0, status; 2029 struct rlimit rlimit = { 0, 0 }; 2030 2031 llen += printf("0 -fstackprotector "); 2032 2033 #if !defined(_NOLIBC_STACKPROTECTOR) 2034 llen += printf("not supported"); 2035 result(llen, SKIPPED); 2036 return 0; 2037 #endif 2038 2039 #if defined(_NOLIBC_STACKPROTECTOR) 2040 if (!__stack_chk_guard) { 2041 llen += printf("__stack_chk_guard not initialized"); 2042 result(llen, FAIL); 2043 return 1; 2044 } 2045 #endif 2046 2047 pid = -1; 2048 pid = fork(); 2049 2050 switch (pid) { 2051 case -1: 2052 llen += printf("fork()"); 2053 result(llen, FAIL); 2054 return 1; 2055 2056 case 0: 2057 close(STDOUT_FILENO); 2058 close(STDERR_FILENO); 2059 2060 prctl(PR_SET_DUMPABLE, 0, 0, 0, 0); 2061 setrlimit(RLIMIT_CORE, &rlimit); 2062 smash_stack(); 2063 return 1; 2064 2065 default: 2066 pid = waitpid(pid, &status, 0); 2067 2068 if (pid == -1 || !WIFSIGNALED(status) || WTERMSIG(status) != SIGABRT) { 2069 llen += printf("waitpid()"); 2070 result(llen, FAIL); 2071 return 1; 2072 } 2073 result(llen, OK); 2074 return 0; 2075 } 2076 } 2077 2078 /* prepare what needs to be prepared for pid 1 (stdio, /dev, /proc, etc) */ 2079 int prepare(void) 2080 { 2081 struct stat stat_buf; 2082 2083 /* It's possible that /dev doesn't even exist or was not mounted, so 2084 * we'll try to create it, mount it, or create minimal entries into it. 2085 * We want at least /dev/null and /dev/console. 2086 */ 2087 if (stat("/dev/.", &stat_buf) == 0 || mkdir("/dev", 0755) == 0) { 2088 if (stat("/dev/console", &stat_buf) != 0 || 2089 stat("/dev/null", &stat_buf) != 0 || 2090 stat("/dev/zero", &stat_buf) != 0 || 2091 stat("/dev/full", &stat_buf) != 0) { 2092 /* try devtmpfs first, otherwise fall back to manual creation */ 2093 if (mount("/dev", "/dev", "devtmpfs", 0, 0) != 0) { 2094 mknod("/dev/console", 0600 | S_IFCHR, makedev(5, 1)); 2095 mknod("/dev/null", 0666 | S_IFCHR, makedev(1, 3)); 2096 mknod("/dev/zero", 0666 | S_IFCHR, makedev(1, 5)); 2097 mknod("/dev/full", 0666 | S_IFCHR, makedev(1, 7)); 2098 } 2099 } 2100 } 2101 2102 /* If no /dev/console was found before calling init, stdio is closed so 2103 * we need to reopen it from /dev/console. If it failed above, it will 2104 * still fail here and we cannot emit a message anyway. 2105 */ 2106 if (close(dup(1)) == -1) { 2107 int fd = open("/dev/console", O_RDWR); 2108 2109 if (fd >= 0) { 2110 if (fd != 0) 2111 dup2(fd, 0); 2112 if (fd != 1) 2113 dup2(fd, 1); 2114 if (fd != 2) 2115 dup2(fd, 2); 2116 if (fd > 2) 2117 close(fd); 2118 puts("\nSuccessfully reopened /dev/console."); 2119 } 2120 } 2121 2122 /* try to mount /proc if not mounted. Silently fail otherwise */ 2123 if (stat("/proc/.", &stat_buf) == 0 || mkdir("/proc", 0755) == 0) { 2124 if (stat("/proc/self", &stat_buf) != 0) { 2125 /* If not mountable, remove /proc completely to avoid misuse */ 2126 if (mount("none", "/proc", "proc", 0, 0) != 0) 2127 rmdir("/proc"); 2128 } 2129 } 2130 2131 /* some tests rely on a writable /tmp */ 2132 mkdir("/tmp", 0755); 2133 2134 return 0; 2135 } 2136 2137 /* This is the definition of known test names, with their functions */ 2138 static const struct test test_names[] = { 2139 /* add new tests here */ 2140 { .name = "startup", .func = run_startup }, 2141 { .name = "syscall", .func = run_syscall }, 2142 { .name = "stdlib", .func = run_stdlib }, 2143 { .name = "printf", .func = run_printf }, 2144 { .name = "protection", .func = run_protection }, 2145 { 0 } 2146 }; 2147 2148 static int is_setting_valid(char *test) 2149 { 2150 int idx, len, test_len, valid = 0; 2151 char delimiter; 2152 2153 if (!test) 2154 return valid; 2155 2156 test_len = strlen(test); 2157 2158 for (idx = 0; test_names[idx].name; idx++) { 2159 len = strlen(test_names[idx].name); 2160 if (test_len < len) 2161 continue; 2162 2163 if (strncmp(test, test_names[idx].name, len) != 0) 2164 continue; 2165 2166 delimiter = test[len]; 2167 if (delimiter != ':' && delimiter != ',' && delimiter != '\0') 2168 continue; 2169 2170 valid = 1; 2171 break; 2172 } 2173 2174 return valid; 2175 } 2176 2177 int main(int argc, char **argv, char **envp) 2178 { 2179 int min = 0; 2180 int max = INT_MAX; 2181 int ret = 0; 2182 int err; 2183 int idx; 2184 char *test; 2185 2186 argv0 = argv[0]; 2187 test_argc = argc; 2188 test_argv = argv; 2189 test_envp = envp; 2190 2191 /* when called as init, it's possible that no console was opened, for 2192 * example if no /dev file system was provided. We'll check that fd#1 2193 * was opened, and if not we'll attempt to create and open /dev/console 2194 * and /dev/null that we'll use for later tests. 2195 */ 2196 if (getpid() == 1) 2197 prepare(); 2198 2199 /* the definition of a series of tests comes from either argv[1] or the 2200 * "NOLIBC_TEST" environment variable. It's made of a comma-delimited 2201 * series of test names and optional ranges: 2202 * syscall:5-15[:.*],stdlib:8-10 2203 */ 2204 test = argv[1]; 2205 if (!is_setting_valid(test)) 2206 test = getenv("NOLIBC_TEST"); 2207 2208 if (is_setting_valid(test)) { 2209 char *comma, *colon, *dash, *value; 2210 2211 do { 2212 comma = strchr(test, ','); 2213 if (comma) 2214 *(comma++) = '\0'; 2215 2216 colon = strchr(test, ':'); 2217 if (colon) 2218 *(colon++) = '\0'; 2219 2220 for (idx = 0; test_names[idx].name; idx++) { 2221 if (strcmp(test, test_names[idx].name) == 0) 2222 break; 2223 } 2224 2225 if (test_names[idx].name) { 2226 /* The test was named, it will be called at least 2227 * once. We may have an optional range at <colon> 2228 * here, which defaults to the full range. 2229 */ 2230 do { 2231 min = 0; max = INT_MAX; 2232 value = colon; 2233 if (value && *value) { 2234 colon = strchr(value, ':'); 2235 if (colon) 2236 *(colon++) = '\0'; 2237 2238 dash = strchr(value, '-'); 2239 if (dash) 2240 *(dash++) = '\0'; 2241 2242 /* support :val: :min-max: :min-: :-max: */ 2243 if (*value) 2244 min = atoi(value); 2245 if (!dash) 2246 max = min; 2247 else if (*dash) 2248 max = atoi(dash); 2249 2250 value = colon; 2251 } 2252 2253 /* now's time to call the test */ 2254 printf("Running test '%s'\n", test_names[idx].name); 2255 err = test_names[idx].func(min, max); 2256 ret += err; 2257 printf("Errors during this test: %d\n\n", err); 2258 } while (colon && *colon); 2259 } else 2260 printf("Ignoring unknown test name '%s'\n", test); 2261 2262 test = comma; 2263 } while (test && *test); 2264 } else { 2265 /* no test mentioned, run everything */ 2266 for (idx = 0; test_names[idx].name; idx++) { 2267 printf("Running test '%s'\n", test_names[idx].name); 2268 err = test_names[idx].func(min, max); 2269 ret += err; 2270 printf("Errors during this test: %d\n\n", err); 2271 } 2272 } 2273 2274 printf("Total number of errors: %d\n", ret); 2275 2276 if (getpid() == 1) { 2277 /* we're running as init, there's no other process on the 2278 * system, thus likely started from a VM for a quick check. 2279 * Exiting will provoke a kernel panic that may be reported 2280 * as an error by Qemu or the hypervisor, while stopping 2281 * cleanly will often be reported as a success. This allows 2282 * to use the output of this program for bisecting kernels. 2283 */ 2284 printf("Leaving init with final status: %d\n", !!ret); 2285 if (ret == 0) 2286 reboot(RB_POWER_OFF); 2287 #if defined(__x86_64__) 2288 /* QEMU started with "-device isa-debug-exit -no-reboot" will 2289 * exit with status code 2N+1 when N is written to 0x501. We 2290 * hard-code the syscall here as it's arch-dependent. 2291 */ 2292 else if (syscall(__NR_ioperm, 0x501, 1, 1) == 0) 2293 __asm__ volatile ("outb %%al, %%dx" :: "d"(0x501), "a"(0)); 2294 /* if it does nothing, fall back to the regular panic */ 2295 #endif 2296 } 2297 2298 printf("Exiting with status %d\n", !!ret); 2299 return !!ret; 2300 } 2301