| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Willy Tarreau | 4661 | 45.68% | 15 | 16.85% |
| Thomas Weißschuh | 3330 | 32.64% | 38 | 42.70% |
| Zhangjin Wu | 1321 | 12.95% | 31 | 34.83% |
| Vincent Dagonneau | 391 | 3.83% | 2 | 2.25% |
| Rodrigo Campos | 248 | 2.43% | 1 | 1.12% |
| Ammar Faizi | 139 | 1.36% | 1 | 1.12% |
| Yuan Tan | 113 | 1.11% | 1 | 1.12% |
| Total | 10203 | 89 |
/* SPDX-License-Identifier: GPL-2.0 */ #define _GNU_SOURCE #define _LARGEFILE64_SOURCE /* libc-specific include files * The program may be built in 3 ways: * $(CC) -nostdlib -include /path/to/nolibc.h => NOLIBC already defined * $(CC) -nostdlib -I/path/to/nolibc/sysroot => _NOLIBC_* guards are present * $(CC) with default libc => NOLIBC* never defined */ #ifndef NOLIBC #include <stdio.h> #include <stdlib.h> #include <string.h> #ifndef _NOLIBC_STDIO_H /* standard libcs need more includes */ #include <sys/auxv.h> #include <sys/io.h> #include <sys/ioctl.h> #include <sys/mman.h> #include <sys/mount.h> #include <sys/prctl.h> #include <sys/reboot.h> #include <sys/resource.h> #include <sys/stat.h> #include <sys/syscall.h> #include <sys/sysmacros.h> #include <sys/time.h> #include <sys/utsname.h> #include <sys/wait.h> #include <dirent.h> #include <errno.h> #include <fcntl.h> #include <poll.h> #include <sched.h> #include <signal.h> #include <stdarg.h> #include <stddef.h> #include <stdint.h> #include <unistd.h> #include <limits.h> #endif #endif #include "nolibc-test-linkage.h" /* for the type of int_fast16_t and int_fast32_t, musl differs from glibc and nolibc */ #define SINT_MAX_OF_TYPE(type) (((type)1 << (sizeof(type) * 8 - 2)) - (type)1 + ((type)1 << (sizeof(type) * 8 - 2))) #define SINT_MIN_OF_TYPE(type) (-SINT_MAX_OF_TYPE(type) - 1) /* will be used to test initialization of environ */ static char **test_envp; /* will be used to test initialization of argv */ static char **test_argv; /* will be used to test initialization of argc */ static int test_argc; /* will be used by some test cases as readable file, please don't write it */ static const char *argv0; /* will be used by constructor tests */ static int constructor_test_value; static const int is_nolibc = #ifdef NOLIBC 1 #else 0 #endif ; /* definition of a series of tests */ struct test { const char *name; /* test name */ int (*func)(int min, int max); /* handler */ }; #ifndef _NOLIBC_STDLIB_H char *itoa(int i) { static char buf[12]; int ret; ret = snprintf(buf, sizeof(buf), "%d", i); return (ret >= 0 && ret < sizeof(buf)) ? buf : "#err"; } #endif #define CASE_ERR(err) \ case err: return #err /* returns the error name (e.g. "ENOENT") for common errors, "SUCCESS" for 0, * or the decimal value for less common ones. */ static const char *errorname(int err) { switch (err) { case 0: return "SUCCESS"; CASE_ERR(EPERM); CASE_ERR(ENOENT); CASE_ERR(ESRCH); CASE_ERR(EINTR); CASE_ERR(EIO); CASE_ERR(ENXIO); CASE_ERR(E2BIG); CASE_ERR(ENOEXEC); CASE_ERR(EBADF); CASE_ERR(ECHILD); CASE_ERR(EAGAIN); CASE_ERR(ENOMEM); CASE_ERR(EACCES); CASE_ERR(EFAULT); CASE_ERR(ENOTBLK); CASE_ERR(EBUSY); CASE_ERR(EEXIST); CASE_ERR(EXDEV); CASE_ERR(ENODEV); CASE_ERR(ENOTDIR); CASE_ERR(EISDIR); CASE_ERR(EINVAL); CASE_ERR(ENFILE); CASE_ERR(EMFILE); CASE_ERR(ENOTTY); CASE_ERR(ETXTBSY); CASE_ERR(EFBIG); CASE_ERR(ENOSPC); CASE_ERR(ESPIPE); CASE_ERR(EROFS); CASE_ERR(EMLINK); CASE_ERR(EPIPE); CASE_ERR(EDOM); CASE_ERR(ERANGE); CASE_ERR(ENOSYS); CASE_ERR(EOVERFLOW); default: return itoa(err); } } static void align_result(size_t llen) { const size_t align = 64; char buf[align]; size_t n; if (llen >= align) return; n = align - llen; memset(buf, ' ', n); buf[n] = '\0'; fputs(buf, stdout); } enum RESULT { OK, FAIL, SKIPPED, }; static void result(int llen, enum RESULT r) { const char *msg; if (r == OK) msg = " [OK]"; else if (r == SKIPPED) msg = "[SKIPPED]"; else msg = " [FAIL]"; align_result(llen); puts(msg); } /* The tests below are intended to be used by the macroes, which evaluate * expression <expr>, print the status to stdout, and update the "ret" * variable to count failures. The functions themselves return the number * of failures, thus either 0 or 1. */ #define EXPECT_ZR(cond, expr) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_zr(expr, llen); } while (0) static __attribute__((unused)) int expect_zr(int expr, int llen) { int ret = !(expr == 0); llen += printf(" = %d ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_NZ(cond, expr, val) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_nz(expr, llen; } while (0) static __attribute__((unused)) int expect_nz(int expr, int llen) { int ret = !(expr != 0); llen += printf(" = %d ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_EQ(cond, expr, val) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_eq(expr, llen, val); } while (0) static __attribute__((unused)) int expect_eq(uint64_t expr, int llen, uint64_t val) { int ret = !(expr == val); llen += printf(" = %lld ", (long long)expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_NE(cond, expr, val) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ne(expr, llen, val); } while (0) static __attribute__((unused)) int expect_ne(int expr, int llen, int val) { int ret = !(expr != val); llen += printf(" = %d ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_GE(cond, expr, val) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ge(expr, llen, val); } while (0) static __attribute__((unused)) int expect_ge(int expr, int llen, int val) { int ret = !(expr >= val); llen += printf(" = %d ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_GT(cond, expr, val) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_gt(expr, llen, val); } while (0) static __attribute__((unused)) int expect_gt(int expr, int llen, int val) { int ret = !(expr > val); llen += printf(" = %d ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_LE(cond, expr, val) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_le(expr, llen, val); } while (0) static __attribute__((unused)) int expect_le(int expr, int llen, int val) { int ret = !(expr <= val); llen += printf(" = %d ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_LT(cond, expr, val) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_lt(expr, llen, val); } while (0) static __attribute__((unused)) int expect_lt(int expr, int llen, int val) { int ret = !(expr < val); llen += printf(" = %d ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_SYSZR(cond, expr) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syszr(expr, llen); } while (0) static __attribute__((unused)) int expect_syszr(int expr, int llen) { int ret = 0; if (expr) { ret = 1; llen += printf(" = %d %s ", expr, errorname(errno)); result(llen, FAIL); } else { llen += printf(" = %d ", expr); result(llen, OK); } return ret; } #define EXPECT_SYSEQ(cond, expr, val) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syseq(expr, llen, val); } while (0) static __attribute__((unused)) int expect_syseq(int expr, int llen, int val) { int ret = 0; if (expr != val) { ret = 1; llen += printf(" = %d %s ", expr, errorname(errno)); result(llen, FAIL); } else { llen += printf(" = %d ", expr); result(llen, OK); } return ret; } #define EXPECT_SYSNE(cond, expr, val) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_sysne(expr, llen, val); } while (0) static __attribute__((unused)) int expect_sysne(int expr, int llen, int val) { int ret = 0; if (expr == val) { ret = 1; llen += printf(" = %d %s ", expr, errorname(errno)); result(llen, FAIL); } else { llen += printf(" = %d ", expr); result(llen, OK); } return ret; } #define EXPECT_SYSER2(cond, expr, expret, experr1, experr2) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syserr2(expr, expret, experr1, experr2, llen); } while (0) #define EXPECT_SYSER(cond, expr, expret, experr) \ EXPECT_SYSER2(cond, expr, expret, experr, 0) static __attribute__((unused)) int expect_syserr2(int expr, int expret, int experr1, int experr2, int llen) { int ret = 0; int _errno = errno; llen += printf(" = %d %s ", expr, errorname(_errno)); if (expr != expret || (_errno != experr1 && _errno != experr2)) { ret = 1; if (experr2 == 0) llen += printf(" != (%d %s) ", expret, errorname(experr1)); else llen += printf(" != (%d %s %s) ", expret, errorname(experr1), errorname(experr2)); result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_PTRZR(cond, expr) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrzr(expr, llen); } while (0) static __attribute__((unused)) int expect_ptrzr(const void *expr, int llen) { int ret = 0; llen += printf(" = <%p> ", expr); if (expr) { ret = 1; result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_PTRNZ(cond, expr) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrnz(expr, llen); } while (0) static __attribute__((unused)) int expect_ptrnz(const void *expr, int llen) { int ret = 0; llen += printf(" = <%p> ", expr); if (!expr) { ret = 1; result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_PTREQ(cond, expr, cmp) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptreq(expr, llen, cmp); } while (0) static __attribute__((unused)) int expect_ptreq(const void *expr, int llen, const void *cmp) { int ret = 0; llen += printf(" = <%p> ", expr); if (expr != cmp) { ret = 1; result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_PTRNE(cond, expr, cmp) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrne(expr, llen, cmp); } while (0) static __attribute__((unused)) int expect_ptrne(const void *expr, int llen, const void *cmp) { int ret = 0; llen += printf(" = <%p> ", expr); if (expr == cmp) { ret = 1; result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_PTRGE(cond, expr, cmp) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrge(expr, llen, cmp); } while (0) static __attribute__((unused)) int expect_ptrge(const void *expr, int llen, const void *cmp) { int ret = !(expr >= cmp); llen += printf(" = <%p> ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_PTRGT(cond, expr, cmp) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrgt(expr, llen, cmp); } while (0) static __attribute__((unused)) int expect_ptrgt(const void *expr, int llen, const void *cmp) { int ret = !(expr > cmp); llen += printf(" = <%p> ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_PTRLE(cond, expr, cmp) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrle(expr, llen, cmp); } while (0) static __attribute__((unused)) int expect_ptrle(const void *expr, int llen, const void *cmp) { int ret = !(expr <= cmp); llen += printf(" = <%p> ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_PTRLT(cond, expr, cmp) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrlt(expr, llen, cmp); } while (0) static __attribute__((unused)) int expect_ptrlt(const void *expr, int llen, const void *cmp) { int ret = !(expr < cmp); llen += printf(" = <%p> ", expr); result(llen, ret ? FAIL : OK); return ret; } #define EXPECT_PTRER2(cond, expr, expret, experr1, experr2) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrerr2(expr, expret, experr1, experr2, llen); } while (0) #define EXPECT_PTRER(cond, expr, expret, experr) \ EXPECT_PTRER2(cond, expr, expret, experr, 0) static __attribute__((unused)) int expect_ptrerr2(const void *expr, const void *expret, int experr1, int experr2, int llen) { int ret = 0; int _errno = errno; llen += printf(" = <%p> %s ", expr, errorname(_errno)); if (expr != expret || (_errno != experr1 && _errno != experr2)) { ret = 1; if (experr2 == 0) llen += printf(" != (<%p> %s) ", expret, errorname(experr1)); else llen += printf(" != (<%p> %s %s) ", expret, errorname(experr1), errorname(experr2)); result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_STRZR(cond, expr) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strzr(expr, llen); } while (0) static __attribute__((unused)) int expect_strzr(const char *expr, int llen) { int ret = 0; llen += printf(" = <%s> ", expr); if (expr) { ret = 1; result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_STRNZ(cond, expr) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strnz(expr, llen); } while (0) static __attribute__((unused)) int expect_strnz(const char *expr, int llen) { int ret = 0; llen += printf(" = <%s> ", expr); if (!expr) { ret = 1; result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_STREQ(cond, expr, cmp) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_streq(expr, llen, cmp); } while (0) static __attribute__((unused)) int expect_streq(const char *expr, int llen, const char *cmp) { int ret = 0; llen += printf(" = <%s> ", expr); if (strcmp(expr, cmp) != 0) { ret = 1; result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_STRNE(cond, expr, cmp) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strne(expr, llen, cmp); } while (0) static __attribute__((unused)) int expect_strne(const char *expr, int llen, const char *cmp) { int ret = 0; llen += printf(" = <%s> ", expr); if (strcmp(expr, cmp) == 0) { ret = 1; result(llen, FAIL); } else { result(llen, OK); } return ret; } #define EXPECT_STRBUFEQ(cond, expr, buf, val, cmp) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_str_buf_eq(expr, buf, val, llen, cmp); } while (0) static __attribute__((unused)) int expect_str_buf_eq(size_t expr, const char *buf, size_t val, int llen, const char *cmp) { llen += printf(" = %lu <%s> ", (unsigned long)expr, buf); if (strcmp(buf, cmp) != 0) { result(llen, FAIL); return 1; } if (expr != val) { result(llen, FAIL); return 1; } result(llen, OK); return 0; } #define EXPECT_STRTOX(cond, func, input, base, expected, chars, expected_errno) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strtox(llen, func, input, base, expected, chars, expected_errno); } while (0) static __attribute__((unused)) int expect_strtox(int llen, void *func, const char *input, int base, intmax_t expected, int expected_chars, int expected_errno) { char *endptr; int actual_errno, actual_chars; intmax_t r; errno = 0; if (func == strtol) { r = strtol(input, &endptr, base); } else if (func == strtoul) { r = strtoul(input, &endptr, base); } else { result(llen, FAIL); return 1; } actual_errno = errno; actual_chars = endptr - input; llen += printf(" %lld = %lld", (long long)expected, (long long)r); if (r != expected) { result(llen, FAIL); return 1; } if (expected_chars == -1) { if (*endptr != '\0') { result(llen, FAIL); return 1; } } else if (expected_chars != actual_chars) { result(llen, FAIL); return 1; } if (actual_errno != expected_errno) { result(llen, FAIL); return 1; } result(llen, OK); return 0; } /* declare tests based on line numbers. There must be exactly one test per line. */ #define CASE_TEST(name) \ case __LINE__: llen += printf("%d %s", test, #name); /* constructors validate that they are executed in definition order */ __attribute__((constructor)) static void constructor1(void) { constructor_test_value = 1; } __attribute__((constructor)) static void constructor2(void) { constructor_test_value *= 2; } int run_startup(int min, int max) { int test; int ret = 0; /* kernel at least passes HOME and TERM, shell passes more */ int env_total = 2; /* checking NULL for argv/argv0, environ and _auxv is not enough, let's compare with sbrk(0) or &end */ extern char end; char *brk = sbrk(0) != (void *)-1 ? sbrk(0) : &end; /* differ from nolibc, both glibc and musl have no global _auxv */ const unsigned long *test_auxv = (void *)-1; #ifdef NOLIBC test_auxv = _auxv; #endif for (test = min; test >= 0 && test <= max; test++) { int llen = 0; /* line length */ /* avoid leaving empty lines below, this will insert holes into * test numbers. */ switch (test + __LINE__ + 1) { CASE_TEST(argc); EXPECT_GE(1, test_argc, 1); break; CASE_TEST(argv_addr); EXPECT_PTRGT(1, test_argv, brk); break; CASE_TEST(argv_environ); EXPECT_PTRLT(1, test_argv, environ); break; CASE_TEST(argv_total); EXPECT_EQ(1, environ - test_argv - 1, test_argc ?: 1); break; CASE_TEST(argv0_addr); EXPECT_PTRGT(1, argv0, brk); break; CASE_TEST(argv0_str); EXPECT_STRNZ(1, argv0 > brk ? argv0 : NULL); break; CASE_TEST(argv0_len); EXPECT_GE(1, argv0 > brk ? strlen(argv0) : 0, 1); break; CASE_TEST(environ_addr); EXPECT_PTRGT(1, environ, brk); break; CASE_TEST(environ_envp); EXPECT_PTREQ(1, environ, test_envp); break; CASE_TEST(environ_auxv); EXPECT_PTRLT(test_auxv != (void *)-1, environ, test_auxv); break; CASE_TEST(environ_total); EXPECT_GE(test_auxv != (void *)-1, (void *)test_auxv - (void *)environ - 1, env_total); break; CASE_TEST(environ_HOME); EXPECT_PTRNZ(1, getenv("HOME")); break; CASE_TEST(auxv_addr); EXPECT_PTRGT(test_auxv != (void *)-1, test_auxv, brk); break; CASE_TEST(auxv_AT_UID); EXPECT_EQ(1, getauxval(AT_UID), getuid()); break; CASE_TEST(constructor); EXPECT_EQ(1, constructor_test_value, 2); break; CASE_TEST(linkage_errno); EXPECT_PTREQ(1, linkage_test_errno_addr(), &errno); break; CASE_TEST(linkage_constr); EXPECT_EQ(1, linkage_test_constructor_test_value, 6); break; case __LINE__: return ret; /* must be last */ /* note: do not set any defaults so as to permit holes above */ } } return ret; } /* used by some syscall tests below */ int test_getdents64(const char *dir) { char buffer[4096]; int fd, ret; int err; ret = fd = open(dir, O_RDONLY | O_DIRECTORY, 0); if (ret < 0) return ret; ret = getdents64(fd, (void *)buffer, sizeof(buffer)); err = errno; close(fd); errno = err; return ret; } int test_getpagesize(void) { int x = getpagesize(); int c; if (x < 0) return x; #if defined(__x86_64__) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) /* * x86 family is always 4K page. */ c = (x == 4096); #elif defined(__aarch64__) /* * Linux aarch64 supports three values of page size: 4K, 16K, and 64K * which are selected at kernel compilation time. */ c = (x == 4096 || x == (16 * 1024) || x == (64 * 1024)); #else /* * Assuming other architectures must have at least 4K page. */ c = (x >= 4096); #endif return !c; } int test_fork(void) { int status; pid_t pid; /* flush the printf buffer to avoid child flush it */ fflush(stdout); fflush(stderr); pid = fork(); switch (pid) { case -1: return 1; case 0: exit(123); default: pid = waitpid(pid, &status, 0); return pid == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 123; } } int test_stat_timestamps(void) { struct stat st; if (sizeof(st.st_atim.tv_sec) != sizeof(st.st_atime)) return 1; if (stat("/proc/self/", &st) && stat(argv0, &st) && stat("/", &st)) return 1; if (st.st_atim.tv_sec != st.st_atime || st.st_atim.tv_nsec > 1000000000) return 1; if (st.st_mtim.tv_sec != st.st_mtime || st.st_mtim.tv_nsec > 1000000000) return 1; if (st.st_ctim.tv_sec != st.st_ctime || st.st_ctim.tv_nsec > 1000000000) return 1; return 0; } int test_uname(void) { struct utsname buf; char osrelease[sizeof(buf.release)]; ssize_t r; int fd; memset(&buf.domainname, 'P', sizeof(buf.domainname)); if (uname(&buf)) return 1; if (strncmp("Linux", buf.sysname, sizeof(buf.sysname))) return 1; fd = open("/proc/sys/kernel/osrelease", O_RDONLY); if (fd == -1) return 1; r = read(fd, osrelease, sizeof(osrelease)); if (r == -1) return 1; close(fd); if (osrelease[r - 1] == '\n') r--; /* Validate one of the later fields to ensure field sizes are correct */ if (strncmp(osrelease, buf.release, r)) return 1; /* Ensure the field domainname is set, it is missing from struct old_utsname */ if (strnlen(buf.domainname, sizeof(buf.domainname)) == sizeof(buf.domainname)) return 1; return 0; } int test_mmap_munmap(void) { int ret, fd, i, page_size; void *mem; size_t file_size, length; off_t offset, pa_offset; struct stat stat_buf; const char * const files[] = { "/dev/zero", "/proc/1/exe", "/proc/self/exe", argv0, NULL }; page_size = getpagesize(); if (page_size < 0) return 1; /* find a right file to mmap, existed and accessible */ for (i = 0; files[i] != NULL; i++) { ret = fd = open(files[i], O_RDONLY); if (ret == -1) continue; else break; } if (ret == -1) return 1; ret = stat(files[i], &stat_buf); if (ret == -1) goto end; /* file size of the special /dev/zero is 0, let's assign one manually */ if (i == 0) file_size = 3*page_size; else file_size = stat_buf.st_size; offset = file_size - 1; if (offset < 0) offset = 0; length = file_size - offset; pa_offset = offset & ~(page_size - 1); mem = mmap(NULL, length + offset - pa_offset, PROT_READ, MAP_SHARED, fd, pa_offset); if (mem == MAP_FAILED) { ret = 1; goto end; } ret = munmap(mem, length + offset - pa_offset); end: close(fd); return !!ret; } int test_pipe(void) { const char *const msg = "hello, nolibc"; int pipefd[2]; char buf[32]; size_t len; if (pipe(pipefd) == -1) return 1; write(pipefd[1], msg, strlen(msg)); close(pipefd[1]); len = read(pipefd[0], buf, sizeof(buf)); close(pipefd[0]); if (len != strlen(msg)) return 1; return !!memcmp(buf, msg, len); } int test_rlimit(void) { struct rlimit rlim = { .rlim_cur = 1 << 20, .rlim_max = 1 << 21, }; int ret; ret = setrlimit(RLIMIT_CORE, &rlim); if (ret) return -1; rlim.rlim_cur = 0; rlim.rlim_max = 0; ret = getrlimit(RLIMIT_CORE, &rlim); if (ret) return -1; if (rlim.rlim_cur != 1 << 20) return -1; if (rlim.rlim_max != 1 << 21) return -1; return 0; } /* Run syscall tests between IDs <min> and <max>. * Return 0 on success, non-zero on failure. */ int run_syscall(int min, int max) { struct timeval tv; struct timezone tz; struct stat stat_buf; int euid0; int proc; int test; int tmp; int ret = 0; void *p1, *p2; int has_gettid = 1; int has_brk; /* <proc> indicates whether or not /proc is mounted */ proc = stat("/proc", &stat_buf) == 0; /* this will be used to skip certain tests that can't be run unprivileged */ euid0 = geteuid() == 0; /* from 2.30, glibc provides gettid() */ #if defined(__GLIBC_MINOR__) && defined(__GLIBC__) has_gettid = __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 30); #endif /* on musl setting brk()/sbrk() always fails */ has_brk = brk(0) == 0; for (test = min; test >= 0 && test <= max; test++) { int llen = 0; /* line length */ /* avoid leaving empty lines below, this will insert holes into * test numbers. */ switch (test + __LINE__ + 1) { CASE_TEST(getpid); EXPECT_SYSNE(1, getpid(), -1); break; CASE_TEST(getppid); EXPECT_SYSNE(1, getppid(), -1); break; CASE_TEST(gettid); EXPECT_SYSNE(has_gettid, gettid(), -1); break; CASE_TEST(getpgid_self); EXPECT_SYSNE(1, getpgid(0), -1); break; CASE_TEST(getpgid_bad); EXPECT_SYSER(1, getpgid(-1), -1, ESRCH); break; CASE_TEST(kill_0); EXPECT_SYSZR(1, kill(getpid(), 0)); break; CASE_TEST(kill_CONT); EXPECT_SYSZR(1, kill(getpid(), 0)); break; CASE_TEST(kill_BADPID); EXPECT_SYSER(1, kill(INT_MAX, 0), -1, ESRCH); break; CASE_TEST(sbrk_0); EXPECT_PTRNE(has_brk, sbrk(0), (void *)-1); break; CASE_TEST(sbrk); if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(has_brk, (p2 == (void *)-1) || p2 == p1); break; CASE_TEST(brk); EXPECT_SYSZR(has_brk, brk(sbrk(0))); break; CASE_TEST(chdir_root); EXPECT_SYSZR(1, chdir("/")); chdir(getenv("PWD")); break; CASE_TEST(chdir_dot); EXPECT_SYSZR(1, chdir(".")); break; CASE_TEST(chdir_blah); EXPECT_SYSER(1, chdir("/blah"), -1, ENOENT); break; CASE_TEST(chmod_argv0); EXPECT_SYSZR(1, chmod(argv0, 0555)); break; CASE_TEST(chmod_self); EXPECT_SYSER(proc, chmod("/proc/self", 0555), -1, EPERM); break; CASE_TEST(chown_self); EXPECT_SYSER(proc, chown("/proc/self", 0, 0), -1, EPERM); break; CASE_TEST(chroot_root); EXPECT_SYSZR(euid0, chroot("/")); break; CASE_TEST(chroot_blah); EXPECT_SYSER(1, chroot("/proc/self/blah"), -1, ENOENT); break; CASE_TEST(chroot_exe); EXPECT_SYSER(1, chroot(argv0), -1, ENOTDIR); break; CASE_TEST(close_m1); EXPECT_SYSER(1, close(-1), -1, EBADF); break; CASE_TEST(close_dup); EXPECT_SYSZR(1, close(dup(0))); break; CASE_TEST(dup_0); tmp = dup(0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; CASE_TEST(dup_m1); tmp = dup(-1); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; CASE_TEST(dup2_0); tmp = dup2(0, 100); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; CASE_TEST(dup2_m1); tmp = dup2(-1, 100); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; CASE_TEST(dup3_0); tmp = dup3(0, 100, 0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; CASE_TEST(dup3_m1); tmp = dup3(-1, 100, 0); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; CASE_TEST(execve_root); EXPECT_SYSER(1, execve("/", (char*[]){ [0] = "/", [1] = NULL }, NULL), -1, EACCES); break; CASE_TEST(fork); EXPECT_SYSZR(1, test_fork()); break; CASE_TEST(getdents64_root); EXPECT_SYSNE(1, test_getdents64("/"), -1); break; CASE_TEST(getdents64_null); EXPECT_SYSER(1, test_getdents64("/dev/null"), -1, ENOTDIR); break; CASE_TEST(gettimeofday_tv); EXPECT_SYSZR(1, gettimeofday(&tv, NULL)); break; CASE_TEST(gettimeofday_tv_tz);EXPECT_SYSZR(1, gettimeofday(&tv, &tz)); break; CASE_TEST(getpagesize); EXPECT_SYSZR(1, test_getpagesize()); break; CASE_TEST(ioctl_tiocinq); EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break; CASE_TEST(link_root1); EXPECT_SYSER(1, link("/", "/"), -1, EEXIST); break; CASE_TEST(link_blah); EXPECT_SYSER(1, link("/proc/self/blah", "/blah"), -1, ENOENT); break; CASE_TEST(link_dir); EXPECT_SYSER(euid0, link("/", "/blah"), -1, EPERM); break; CASE_TEST(link_cross); EXPECT_SYSER(proc, link("/proc/self/cmdline", "/blah"), -1, EXDEV); break; CASE_TEST(lseek_m1); EXPECT_SYSER(1, lseek(-1, 0, SEEK_SET), -1, EBADF); break; CASE_TEST(lseek_0); EXPECT_SYSER(1, lseek(0, 0, SEEK_SET), -1, ESPIPE); break; CASE_TEST(mkdir_root); EXPECT_SYSER(1, mkdir("/", 0755), -1, EEXIST); break; CASE_TEST(mmap_bad); EXPECT_PTRER(1, mmap(NULL, 0, PROT_READ, MAP_PRIVATE, 0, 0), MAP_FAILED, EINVAL); break; CASE_TEST(munmap_bad); EXPECT_SYSER(1, munmap(NULL, 0), -1, EINVAL); break; CASE_TEST(mmap_munmap_good); EXPECT_SYSZR(1, test_mmap_munmap()); break; CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", 0), -1); if (tmp != -1) close(tmp); break; CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", 0), -1, ENOENT); if (tmp != -1) close(tmp); break; CASE_TEST(pipe); EXPECT_SYSZR(1, test_pipe()); break; CASE_TEST(poll_null); EXPECT_SYSZR(1, poll(NULL, 0, 0)); break; CASE_TEST(poll_stdout); EXPECT_SYSNE(1, ({ struct pollfd fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break; CASE_TEST(poll_fault); EXPECT_SYSER(1, poll(NULL, 1, 0), -1, EFAULT); break; CASE_TEST(prctl); EXPECT_SYSER(1, prctl(PR_SET_NAME, (unsigned long)NULL, 0, 0, 0), -1, EFAULT); break; CASE_TEST(read_badf); EXPECT_SYSER(1, read(-1, &tmp, 1), -1, EBADF); break; CASE_TEST(rlimit); EXPECT_SYSZR(1, test_rlimit()); break; CASE_TEST(rmdir_blah); EXPECT_SYSER(1, rmdir("/blah"), -1, ENOENT); break; CASE_TEST(sched_yield); EXPECT_SYSZR(1, sched_yield()); break; CASE_TEST(select_null); EXPECT_SYSZR(1, ({ struct timeval tv = { 0 }; select(0, NULL, NULL, NULL, &tv); })); break; 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; CASE_TEST(select_fault); EXPECT_SYSER(1, select(1, (void *)1, NULL, NULL, 0), -1, EFAULT); break; CASE_TEST(stat_blah); EXPECT_SYSER(1, stat("/proc/self/blah", &stat_buf), -1, ENOENT); break; CASE_TEST(stat_fault); EXPECT_SYSER(1, stat(NULL, &stat_buf), -1, EFAULT); break; CASE_TEST(stat_timestamps); EXPECT_SYSZR(1, test_stat_timestamps()); break; CASE_TEST(symlink_root); EXPECT_SYSER(1, symlink("/", "/"), -1, EEXIST); break; CASE_TEST(uname); EXPECT_SYSZR(proc, test_uname()); break; CASE_TEST(uname_fault); EXPECT_SYSER(1, uname(NULL), -1, EFAULT); break; CASE_TEST(unlink_root); EXPECT_SYSER(1, unlink("/"), -1, EISDIR); break; CASE_TEST(unlink_blah); EXPECT_SYSER(1, unlink("/proc/self/blah"), -1, ENOENT); break; CASE_TEST(wait_child); EXPECT_SYSER(1, wait(&tmp), -1, ECHILD); break; CASE_TEST(waitpid_min); EXPECT_SYSER(1, waitpid(INT_MIN, &tmp, WNOHANG), -1, ESRCH); break; CASE_TEST(waitpid_child); EXPECT_SYSER(1, waitpid(getpid(), &tmp, WNOHANG), -1, ECHILD); break; CASE_TEST(write_badf); EXPECT_SYSER(1, write(-1, &tmp, 1), -1, EBADF); break; CASE_TEST(write_zero); EXPECT_SYSZR(1, write(1, &tmp, 0)); break; CASE_TEST(syscall_noargs); EXPECT_SYSEQ(1, syscall(__NR_getpid), getpid()); break; CASE_TEST(syscall_args); EXPECT_SYSER(1, syscall(__NR_statx, 0, NULL, 0, 0, NULL), -1, EFAULT); break; case __LINE__: return ret; /* must be last */ /* note: do not set any defaults so as to permit holes above */ } } return ret; } int run_stdlib(int min, int max) { int test; int ret = 0; for (test = min; test >= 0 && test <= max; test++) { int llen = 0; /* line length */ /* For functions that take a long buffer, like strlcat() * Add some more chars after the \0, to test functions that overwrite the buffer set * the \0 at the exact right position. */ char buf[10] = "test123456"; buf[4] = '\0'; /* avoid leaving empty lines below, this will insert holes into * test numbers. */ switch (test + __LINE__ + 1) { CASE_TEST(getenv_TERM); EXPECT_STRNZ(1, getenv("TERM")); break; CASE_TEST(getenv_blah); EXPECT_STRZR(1, getenv("blah")); break; CASE_TEST(setcmp_blah_blah); EXPECT_EQ(1, strcmp("blah", "blah"), 0); break; CASE_TEST(setcmp_blah_blah2); EXPECT_NE(1, strcmp("blah", "blah2"), 0); break; CASE_TEST(setncmp_blah_blah); EXPECT_EQ(1, strncmp("blah", "blah", 10), 0); break; CASE_TEST(setncmp_blah_blah4); EXPECT_EQ(1, strncmp("blah", "blah4", 4), 0); break; CASE_TEST(setncmp_blah_blah5); EXPECT_NE(1, strncmp("blah", "blah5", 5), 0); break; CASE_TEST(setncmp_blah_blah6); EXPECT_NE(1, strncmp("blah", "blah6", 6), 0); break; CASE_TEST(strchr_foobar_o); EXPECT_STREQ(1, strchr("foobar", 'o'), "oobar"); break; CASE_TEST(strchr_foobar_z); EXPECT_STRZR(1, strchr("foobar", 'z')); break; CASE_TEST(strrchr_foobar_o); EXPECT_STREQ(1, strrchr("foobar", 'o'), "obar"); break; CASE_TEST(strrchr_foobar_z); EXPECT_STRZR(1, strrchr("foobar", 'z')); break; CASE_TEST(strlcat_0); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 0), buf, 3, "test"); break; CASE_TEST(strlcat_1); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 1), buf, 4, "test"); break; CASE_TEST(strlcat_5); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 5), buf, 7, "test"); break; CASE_TEST(strlcat_6); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 6), buf, 7, "testb"); break; CASE_TEST(strlcat_7); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 7), buf, 7, "testba"); break; CASE_TEST(strlcat_8); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 8), buf, 7, "testbar"); break; CASE_TEST(strlcpy_0); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 0), buf, 3, "test"); break; CASE_TEST(strlcpy_1); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 1), buf, 3, ""); break; CASE_TEST(strlcpy_2); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 2), buf, 3, "b"); break; CASE_TEST(strlcpy_3); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 3), buf, 3, "ba"); break; CASE_TEST(strlcpy_4); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 4), buf, 3, "bar"); break; CASE_TEST(memcmp_20_20); EXPECT_EQ(1, memcmp("aaa\x20", "aaa\x20", 4), 0); break; CASE_TEST(memcmp_20_60); EXPECT_LT(1, memcmp("aaa\x20", "aaa\x60", 4), 0); break; CASE_TEST(memcmp_60_20); EXPECT_GT(1, memcmp("aaa\x60", "aaa\x20", 4), 0); break; CASE_TEST(memcmp_20_e0); EXPECT_LT(1, memcmp("aaa\x20", "aaa\xe0", 4), 0); break; CASE_TEST(memcmp_e0_20); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x20", 4), 0); break; CASE_TEST(memcmp_80_e0); EXPECT_LT(1, memcmp("aaa\x80", "aaa\xe0", 4), 0); break; CASE_TEST(memcmp_e0_80); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x80", 4), 0); break; CASE_TEST(limit_int8_max); EXPECT_EQ(1, INT8_MAX, (int8_t) 0x7f); break; CASE_TEST(limit_int8_min); EXPECT_EQ(1, INT8_MIN, (int8_t) 0x80); break; CASE_TEST(limit_uint8_max); EXPECT_EQ(1, UINT8_MAX, (uint8_t) 0xff); break; CASE_TEST(limit_int16_max); EXPECT_EQ(1, INT16_MAX, (int16_t) 0x7fff); break; CASE_TEST(limit_int16_min); EXPECT_EQ(1, INT16_MIN, (int16_t) 0x8000); break; CASE_TEST(limit_uint16_max); EXPECT_EQ(1, UINT16_MAX, (uint16_t) 0xffff); break; CASE_TEST(limit_int32_max); EXPECT_EQ(1, INT32_MAX, (int32_t) 0x7fffffff); break; CASE_TEST(limit_int32_min); EXPECT_EQ(1, INT32_MIN, (int32_t) 0x80000000); break; CASE_TEST(limit_uint32_max); EXPECT_EQ(1, UINT32_MAX, (uint32_t) 0xffffffff); break; CASE_TEST(limit_int64_max); EXPECT_EQ(1, INT64_MAX, (int64_t) 0x7fffffffffffffff); break; CASE_TEST(limit_int64_min); EXPECT_EQ(1, INT64_MIN, (int64_t) 0x8000000000000000); break; CASE_TEST(limit_uint64_max); EXPECT_EQ(1, UINT64_MAX, (uint64_t) 0xffffffffffffffff); break; CASE_TEST(limit_int_least8_max); EXPECT_EQ(1, INT_LEAST8_MAX, (int_least8_t) 0x7f); break; CASE_TEST(limit_int_least8_min); EXPECT_EQ(1, INT_LEAST8_MIN, (int_least8_t) 0x80); break; CASE_TEST(limit_uint_least8_max); EXPECT_EQ(1, UINT_LEAST8_MAX, (uint_least8_t) 0xff); break; CASE_TEST(limit_int_least16_max); EXPECT_EQ(1, INT_LEAST16_MAX, (int_least16_t) 0x7fff); break; CASE_TEST(limit_int_least16_min); EXPECT_EQ(1, INT_LEAST16_MIN, (int_least16_t) 0x8000); break; CASE_TEST(limit_uint_least16_max); EXPECT_EQ(1, UINT_LEAST16_MAX, (uint_least16_t) 0xffff); break; CASE_TEST(limit_int_least32_max); EXPECT_EQ(1, INT_LEAST32_MAX, (int_least32_t) 0x7fffffff); break; CASE_TEST(limit_int_least32_min); EXPECT_EQ(1, INT_LEAST32_MIN, (int_least32_t) 0x80000000); break; CASE_TEST(limit_uint_least32_max); EXPECT_EQ(1, UINT_LEAST32_MAX, (uint_least32_t) 0xffffffffU); break; CASE_TEST(limit_int_least64_min); EXPECT_EQ(1, INT_LEAST64_MIN, (int_least64_t) 0x8000000000000000LL); break; CASE_TEST(limit_int_least64_max); EXPECT_EQ(1, INT_LEAST64_MAX, (int_least64_t) 0x7fffffffffffffffLL); break; CASE_TEST(limit_uint_least64_max); EXPECT_EQ(1, UINT_LEAST64_MAX, (uint_least64_t) 0xffffffffffffffffULL); break; CASE_TEST(limit_int_fast8_max); EXPECT_EQ(1, INT_FAST8_MAX, (int_fast8_t) 0x7f); break; CASE_TEST(limit_int_fast8_min); EXPECT_EQ(1, INT_FAST8_MIN, (int_fast8_t) 0x80); break; CASE_TEST(limit_uint_fast8_max); EXPECT_EQ(1, UINT_FAST8_MAX, (uint_fast8_t) 0xff); break; CASE_TEST(limit_int_fast16_min); EXPECT_EQ(1, INT_FAST16_MIN, (int_fast16_t) SINT_MIN_OF_TYPE(int_fast16_t)); break; CASE_TEST(limit_int_fast16_max); EXPECT_EQ(1, INT_FAST16_MAX, (int_fast16_t) SINT_MAX_OF_TYPE(int_fast16_t)); break; CASE_TEST(limit_uint_fast16_max); EXPECT_EQ(1, UINT_FAST16_MAX, (uint_fast16_t) UINTPTR_MAX); break; CASE_TEST(limit_int_fast32_min); EXPECT_EQ(1, INT_FAST32_MIN, (int_fast32_t) SINT_MIN_OF_TYPE(int_fast32_t)); break; CASE_TEST(limit_int_fast32_max); EXPECT_EQ(1, INT_FAST32_MAX, (int_fast32_t) SINT_MAX_OF_TYPE(int_fast32_t)); break; CASE_TEST(limit_uint_fast32_max); EXPECT_EQ(1, UINT_FAST32_MAX, (uint_fast32_t) UINTPTR_MAX); break; CASE_TEST(limit_int_fast64_min); EXPECT_EQ(1, INT_FAST64_MIN, (int_fast64_t) INT64_MIN); break; CASE_TEST(limit_int_fast64_max); EXPECT_EQ(1, INT_FAST64_MAX, (int_fast64_t) INT64_MAX); break; CASE_TEST(limit_uint_fast64_max); EXPECT_EQ(1, UINT_FAST64_MAX, (uint_fast64_t) UINT64_MAX); break; CASE_TEST(sizeof_long_sane); EXPECT_EQ(1, sizeof(long) == 8 || sizeof(long) == 4, 1); break; CASE_TEST(limit_intptr_min); EXPECT_EQ(1, INTPTR_MIN, sizeof(long) == 8 ? (intptr_t) 0x8000000000000000LL : (intptr_t) 0x80000000); break; CASE_TEST(limit_intptr_max); EXPECT_EQ(1, INTPTR_MAX, sizeof(long) == 8 ? (intptr_t) 0x7fffffffffffffffLL : (intptr_t) 0x7fffffff); break; CASE_TEST(limit_uintptr_max); EXPECT_EQ(1, UINTPTR_MAX, sizeof(long) == 8 ? (uintptr_t) 0xffffffffffffffffULL : (uintptr_t) 0xffffffffU); break; CASE_TEST(limit_ptrdiff_min); EXPECT_EQ(1, PTRDIFF_MIN, sizeof(long) == 8 ? (ptrdiff_t) 0x8000000000000000LL : (ptrdiff_t) 0x80000000); break; CASE_TEST(limit_ptrdiff_max); EXPECT_EQ(1, PTRDIFF_MAX, sizeof(long) == 8 ? (ptrdiff_t) 0x7fffffffffffffffLL : (ptrdiff_t) 0x7fffffff); break; CASE_TEST(limit_size_max); EXPECT_EQ(1, SIZE_MAX, sizeof(long) == 8 ? (size_t) 0xffffffffffffffffULL : (size_t) 0xffffffffU); break; CASE_TEST(strtol_simple); EXPECT_STRTOX(1, strtol, "35", 10, 35, -1, 0); break; CASE_TEST(strtol_positive); EXPECT_STRTOX(1, strtol, "+35", 10, 35, -1, 0); break; CASE_TEST(strtol_negative); EXPECT_STRTOX(1, strtol, "-35", 10, -35, -1, 0); break; CASE_TEST(strtol_hex_auto); EXPECT_STRTOX(1, strtol, "0xFF", 0, 255, -1, 0); break; CASE_TEST(strtol_base36); EXPECT_STRTOX(1, strtol, "12yZ", 36, 50507, -1, 0); break; CASE_TEST(strtol_cutoff); EXPECT_STRTOX(1, strtol, "1234567890", 8, 342391, 7, 0); break; CASE_TEST(strtol_octal_auto); EXPECT_STRTOX(1, strtol, "011", 0, 9, -1, 0); break; CASE_TEST(strtol_hex_00); EXPECT_STRTOX(1, strtol, "0x00", 16, 0, -1, 0); break; CASE_TEST(strtol_hex_FF); EXPECT_STRTOX(1, strtol, "FF", 16, 255, -1, 0); break; CASE_TEST(strtol_hex_ff); EXPECT_STRTOX(1, strtol, "ff", 16, 255, -1, 0); break; CASE_TEST(strtol_hex_prefix); EXPECT_STRTOX(1, strtol, "0xFF", 16, 255, -1, 0); break; CASE_TEST(strtol_trailer); EXPECT_STRTOX(1, strtol, "35foo", 10, 35, 2, 0); break; CASE_TEST(strtol_overflow); EXPECT_STRTOX(1, strtol, "0x8000000000000000", 16, LONG_MAX, -1, ERANGE); break; CASE_TEST(strtol_underflow); EXPECT_STRTOX(1, strtol, "-0x8000000000000001", 16, LONG_MIN, -1, ERANGE); break; CASE_TEST(strtoul_negative); EXPECT_STRTOX(1, strtoul, "-0x1", 16, ULONG_MAX, 4, 0); break; CASE_TEST(strtoul_overflow); EXPECT_STRTOX(1, strtoul, "0x10000000000000000", 16, ULONG_MAX, -1, ERANGE); break; CASE_TEST(strerror_success); EXPECT_STREQ(is_nolibc, strerror(0), "errno=0"); break; CASE_TEST(strerror_EINVAL); EXPECT_STREQ(is_nolibc, strerror(EINVAL), "errno=22"); break; CASE_TEST(strerror_int_max); EXPECT_STREQ(is_nolibc, strerror(INT_MAX), "errno=2147483647"); break; CASE_TEST(strerror_int_min); EXPECT_STREQ(is_nolibc, strerror(INT_MIN), "errno=-2147483648"); break; case __LINE__: return ret; /* must be last */ /* note: do not set any defaults so as to permit holes above */ } } return ret; } #define EXPECT_VFPRINTF(c, expected, fmt, ...) \ ret += expect_vfprintf(llen, c, expected, fmt, ##__VA_ARGS__) static int expect_vfprintf(int llen, int c, const char *expected, const char *fmt, ...) { int ret, fd; ssize_t w, r; char buf[100]; FILE *memfile; va_list args; fd = open("/tmp", O_TMPFILE | O_EXCL | O_RDWR, 0600); if (fd == -1) { result(llen, SKIPPED); return 0; } memfile = fdopen(fd, "w+"); if (!memfile) { result(llen, FAIL); return 1; } va_start(args, fmt); w = vfprintf(memfile, fmt, args); va_end(args); if (w != c) { llen += printf(" written(%d) != %d", (int)w, c); result(llen, FAIL); return 1; } fflush(memfile); lseek(fd, 0, SEEK_SET); r = read(fd, buf, sizeof(buf) - 1); fclose(memfile); if (r != w) { llen += printf(" written(%d) != read(%d)", (int)w, (int)r); result(llen, FAIL); return 1; } buf[r] = '\0'; llen += printf(" \"%s\" = \"%s\"", expected, buf); ret = strncmp(expected, buf, c); result(llen, ret ? FAIL : OK); return ret; } static int run_vfprintf(int min, int max) { int test; int ret = 0; for (test = min; test >= 0 && test <= max; test++) { int llen = 0; /* line length */ /* avoid leaving empty lines below, this will insert holes into * test numbers. */ switch (test + __LINE__ + 1) { CASE_TEST(empty); EXPECT_VFPRINTF(0, "", ""); break; CASE_TEST(simple); EXPECT_VFPRINTF(3, "foo", "foo"); break; CASE_TEST(string); EXPECT_VFPRINTF(3, "foo", "%s", "foo"); break; CASE_TEST(number); EXPECT_VFPRINTF(4, "1234", "%d", 1234); break; CASE_TEST(negnumber); EXPECT_VFPRINTF(5, "-1234", "%d", -1234); break; CASE_TEST(unsigned); EXPECT_VFPRINTF(5, "12345", "%u", 12345); break; CASE_TEST(char); EXPECT_VFPRINTF(1, "c", "%c", 'c'); break; CASE_TEST(hex); EXPECT_VFPRINTF(1, "f", "%x", 0xf); break; CASE_TEST(pointer); EXPECT_VFPRINTF(3, "0x1", "%p", (void *) 0x1); break; case __LINE__: return ret; /* must be last */ /* note: do not set any defaults so as to permit holes above */ } } return ret; } static int smash_stack(void) { char buf[100]; volatile char *ptr = buf; size_t i; for (i = 0; i < 200; i++) ptr[i] = 'P'; return 1; } static int run_protection(int min __attribute__((unused)), int max __attribute__((unused))) { pid_t pid; int llen = 0, status; struct rlimit rlimit = { 0, 0 }; llen += printf("0 -fstackprotector "); #if !defined(_NOLIBC_STACKPROTECTOR) llen += printf("not supported"); result(llen, SKIPPED); return 0; #endif #if defined(_NOLIBC_STACKPROTECTOR) if (!__stack_chk_guard) { llen += printf("__stack_chk_guard not initialized"); result(llen, FAIL); return 1; } #endif pid = -1; pid = fork(); switch (pid) { case -1: llen += printf("fork()"); result(llen, FAIL); return 1; case 0: close(STDOUT_FILENO); close(STDERR_FILENO); prctl(PR_SET_DUMPABLE, 0, 0, 0, 0); setrlimit(RLIMIT_CORE, &rlimit); smash_stack(); return 1; default: pid = waitpid(pid, &status, 0); if (pid == -1 || !WIFSIGNALED(status) || WTERMSIG(status) != SIGABRT) { llen += printf("waitpid()"); result(llen, FAIL); return 1; } result(llen, OK); return 0; } } /* prepare what needs to be prepared for pid 1 (stdio, /dev, /proc, etc) */ int prepare(void) { struct stat stat_buf; /* It's possible that /dev doesn't even exist or was not mounted, so * we'll try to create it, mount it, or create minimal entries into it. * We want at least /dev/null and /dev/console. */ if (stat("/dev/.", &stat_buf) == 0 || mkdir("/dev", 0755) == 0) { if (stat("/dev/console", &stat_buf) != 0 || stat("/dev/null", &stat_buf) != 0 || stat("/dev/zero", &stat_buf) != 0) { /* try devtmpfs first, otherwise fall back to manual creation */ if (mount("/dev", "/dev", "devtmpfs", 0, 0) != 0) { mknod("/dev/console", 0600 | S_IFCHR, makedev(5, 1)); mknod("/dev/null", 0666 | S_IFCHR, makedev(1, 3)); mknod("/dev/zero", 0666 | S_IFCHR, makedev(1, 5)); } } } /* If no /dev/console was found before calling init, stdio is closed so * we need to reopen it from /dev/console. If it failed above, it will * still fail here and we cannot emit a message anyway. */ if (close(dup(1)) == -1) { int fd = open("/dev/console", O_RDWR); if (fd >= 0) { if (fd != 0) dup2(fd, 0); if (fd != 1) dup2(fd, 1); if (fd != 2) dup2(fd, 2); if (fd > 2) close(fd); puts("\nSuccessfully reopened /dev/console."); } } /* try to mount /proc if not mounted. Silently fail otherwise */ if (stat("/proc/.", &stat_buf) == 0 || mkdir("/proc", 0755) == 0) { if (stat("/proc/self", &stat_buf) != 0) { /* If not mountable, remove /proc completely to avoid misuse */ if (mount("none", "/proc", "proc", 0, 0) != 0) rmdir("/proc"); } } /* some tests rely on a writable /tmp */ mkdir("/tmp", 0755); return 0; } /* This is the definition of known test names, with their functions */ static const struct test test_names[] = { /* add new tests here */ { .name = "startup", .func = run_startup }, { .name = "syscall", .func = run_syscall }, { .name = "stdlib", .func = run_stdlib }, { .name = "vfprintf", .func = run_vfprintf }, { .name = "protection", .func = run_protection }, { 0 } }; static int is_setting_valid(char *test) { int idx, len, test_len, valid = 0; char delimiter; if (!test) return valid; test_len = strlen(test); for (idx = 0; test_names[idx].name; idx++) { len = strlen(test_names[idx].name); if (test_len < len) continue; if (strncmp(test, test_names[idx].name, len) != 0) continue; delimiter = test[len]; if (delimiter != ':' && delimiter != ',' && delimiter != '\0') continue; valid = 1; break; } return valid; } int main(int argc, char **argv, char **envp) { int min = 0; int max = INT_MAX; int ret = 0; int err; int idx; char *test; argv0 = argv[0]; test_argc = argc; test_argv = argv; test_envp = envp; /* when called as init, it's possible that no console was opened, for * example if no /dev file system was provided. We'll check that fd#1 * was opened, and if not we'll attempt to create and open /dev/console * and /dev/null that we'll use for later tests. */ if (getpid() == 1) prepare(); /* the definition of a series of tests comes from either argv[1] or the * "NOLIBC_TEST" environment variable. It's made of a comma-delimited * series of test names and optional ranges: * syscall:5-15[:.*],stdlib:8-10 */ test = argv[1]; if (!is_setting_valid(test)) test = getenv("NOLIBC_TEST"); if (is_setting_valid(test)) { char *comma, *colon, *dash, *value; do { comma = strchr(test, ','); if (comma) *(comma++) = '\0'; colon = strchr(test, ':'); if (colon) *(colon++) = '\0'; for (idx = 0; test_names[idx].name; idx++) { if (strcmp(test, test_names[idx].name) == 0) break; } if (test_names[idx].name) { /* The test was named, it will be called at least * once. We may have an optional range at <colon> * here, which defaults to the full range. */ do { min = 0; max = INT_MAX; value = colon; if (value && *value) { colon = strchr(value, ':'); if (colon) *(colon++) = '\0'; dash = strchr(value, '-'); if (dash) *(dash++) = '\0'; /* support :val: :min-max: :min-: :-max: */ if (*value) min = atoi(value); if (!dash) max = min; else if (*dash) max = atoi(dash); value = colon; } /* now's time to call the test */ printf("Running test '%s'\n", test_names[idx].name); err = test_names[idx].func(min, max); ret += err; printf("Errors during this test: %d\n\n", err); } while (colon && *colon); } else printf("Ignoring unknown test name '%s'\n", test); test = comma; } while (test && *test); } else { /* no test mentioned, run everything */ for (idx = 0; test_names[idx].name; idx++) { printf("Running test '%s'\n", test_names[idx].name); err = test_names[idx].func(min, max); ret += err; printf("Errors during this test: %d\n\n", err); } } printf("Total number of errors: %d\n", ret); if (getpid() == 1) { /* we're running as init, there's no other process on the * system, thus likely started from a VM for a quick check. * Exiting will provoke a kernel panic that may be reported * as an error by Qemu or the hypervisor, while stopping * cleanly will often be reported as a success. This allows * to use the output of this program for bisecting kernels. */ printf("Leaving init with final status: %d\n", !!ret); if (ret == 0) reboot(RB_POWER_OFF); #if defined(__x86_64__) /* QEMU started with "-device isa-debug-exit -no-reboot" will * exit with status code 2N+1 when N is written to 0x501. We * hard-code the syscall here as it's arch-dependent. */ else if (syscall(__NR_ioperm, 0x501, 1, 1) == 0) __asm__ volatile ("outb %%al, %%dx" :: "d"(0x501), "a"(0)); /* if it does nothing, fall back to the regular panic */ #endif } printf("Exiting with status %d\n", !!ret); return !!ret; }
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