| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Thomas Weißschuh | 6229 | 42.33% | 81 | 52.60% |
| Willy Tarreau | 4758 | 32.33% | 17 | 11.04% |
| Zhangjin Wu | 1301 | 8.84% | 30 | 19.48% |
| David Laight | 1041 | 7.07% | 14 | 9.09% |
| Vincent Dagonneau | 391 | 2.66% | 2 | 1.30% |
| Rodrigo Campos | 247 | 1.68% | 1 | 0.65% |
| Daniel Palmer | 225 | 1.53% | 1 | 0.65% |
| Ammar Faizi | 139 | 0.94% | 1 | 0.65% |
| Benjamin Berg | 135 | 0.92% | 3 | 1.95% |
| Yuan Tan | 113 | 0.77% | 1 | 0.65% |
| Louis Taylor | 83 | 0.56% | 2 | 1.30% |
| Mark Brown | 54 | 0.37% | 1 | 0.65% |
| Total | 14716 | 154 |
/* 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 */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/auxv.h> #include <sys/ioctl.h> #include <sys/mman.h> #include <sys/mount.h> #include <sys/prctl.h> #include <sys/ptrace.h> #include <sys/random.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/timerfd.h> #include <sys/uio.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 <time.h> #include <unistd.h> #include <limits.h> #include <ctype.h> #include <stdbool.h> #include <byteswap.h> #include <endian.h> #pragma GCC diagnostic ignored "-Wmissing-prototypes" #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_le = __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__; static const int is_nolibc = #ifdef NOLIBC 1 #else 0 #endif ; static const int is_glibc = #ifdef __GLIBC__ 1 #else 0 #endif ; #if !defined(NOLIBC) /* Some disabled tests may not compile. */ /* strlcat() and strlcpy() may not be in the system headers. */ #undef strlcat #undef strlcpy #define strlcat(d, s, l) 0 #define strlcpy(d, s, l) 0 /* readdir_r() is likely to be marked deprecated */ #undef readdir_r #define readdir_r(dir, dirent, result) ((errno = EINVAL), -1) #define _syscall(...) 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); } } 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]"; llen = 64 - llen; if (llen < 0) llen = 0; printf("%*s%s\n", llen, "", 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) \ 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 ? expr : "(null)"); 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 ? expr : "(null)"); 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); __attribute__((constructor)) static void constructor1(void) { constructor_test_value |= 1 << 0; } __attribute__((constructor)) static void constructor2(int argc, char **argv, char **envp) { if (argc && argv && envp) constructor_test_value |= 1 << 1; } int test_program_invocation_name(void) { char buf[100]; char *dirsep; ssize_t r; int fd; fd = open("/proc/self/cmdline", O_RDONLY); if (fd == -1) return 1; r = read(fd, buf, sizeof(buf)); close(fd); if (r < 1 || r == sizeof(buf)) return 1; buf[r - 1] = '\0'; if (strcmp(program_invocation_name, buf) != 0) return 1; dirsep = strrchr(buf, '/'); if (!dirsep || dirsep[1] == '\0') return 1; if (strcmp(program_invocation_short_name, dirsep + 1) != 0) return 1; return 0; } 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 bool proc = access("/proc", R_OK) == 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(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(is_nolibc, constructor_test_value, 0x3); 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, 0x3); break; CASE_TEST(prog_name); EXPECT_ZR(proc, test_program_invocation_name()); 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; } static int test_dirent(void) { int comm = 0, cmdline = 0; struct dirent dirent, *result; DIR *dir; int ret; dir = opendir("/proc/self"); if (!dir) return 1; while (1) { errno = 0; ret = readdir_r(dir, &dirent, &result); if (ret != 0) return 1; if (!result) break; if (strcmp(dirent.d_name, "comm") == 0) comm++; else if (strcmp(dirent.d_name, "cmdline") == 0) cmdline++; } if (errno) return 1; ret = closedir(dir); if (ret) return 1; if (comm != 1 || cmdline != 1) return 1; return 0; } int test_getrandom(void) { uint64_t rng = 0; ssize_t ret; ret = getrandom(&rng, sizeof(rng), GRND_NONBLOCK); if (ret == -1 && errno == EAGAIN) return 0; /* No entropy available yet */ if (ret != sizeof(rng)) return ret; if (!rng) { errno = EINVAL; return -1; } return 0; } 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_file_stream(void) { FILE *f; int r; f = fopen("/dev/null", "r"); if (!f) return -1; errno = 0; r = fwrite("foo", 1, 3, f); if (r != 0 || ((is_nolibc || is_glibc) && errno != EBADF)) { fclose(f); return -1; } r = fclose(f); if (r == EOF) return -1; return 0; } int test_file_stream_wsr(void) { const char dataout[] = "foo"; const size_t datasz = sizeof(dataout); char datain[datasz]; int fd, r; FILE *f; fd = open("/tmp", O_TMPFILE | O_RDWR, 0644); if (fd == -1) return -1; f = fdopen(fd, "w+"); if (!f) return -1; errno = 0; r = fwrite(dataout, 1, datasz, f); if (r != datasz) return -1; /* Attempt to read from the file without rewinding, * we should read 0 items. */ r = fread(datain, 1, datasz, f); if (r) return -1; /* Rewind the file to the start */ r = fseek(f, 0, SEEK_SET); if (r) return -1; /* Attempt to read back more than was written to * make sure we handle short reads properly. * fread() should return the number of complete items. */ r = fread(datain, 1, datasz + 1, f); if (r != datasz) return -1; /* Data we read should match the data we just wrote */ if (memcmp(datain, dataout, datasz) != 0) return -1; r = fclose(f); if (r) return -1; return 0; } enum fork_type { FORK_STANDARD, FORK_VFORK, }; int test_fork(enum fork_type type) { int status; pid_t pid; /* flush the printf buffer to avoid child flush it */ fflush(stdout); fflush(stderr); switch (type) { case FORK_STANDARD: pid = fork(); break; case FORK_VFORK: pid = vfork(); break; default: return 1; } 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_timer(void) { struct itimerspec timerspec; struct sigevent evp; timer_t timer; int ret; evp.sigev_notify = SIGEV_NONE; ret = timer_create(CLOCK_MONOTONIC, &evp, &timer); if (ret) return ret; timerspec = (struct itimerspec) { .it_value.tv_sec = 1000000, }; ret = timer_settime(timer, 0, &timerspec, NULL); if (ret) goto err; timerspec = (struct itimerspec) { .it_value.tv_sec = -1, .it_value.tv_nsec = -1, .it_interval.tv_sec = -1, .it_interval.tv_nsec = -1, }; ret = timer_gettime(timer, &timerspec); if (ret) goto err; errno = EINVAL; ret = -1; if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec) goto err; if (timerspec.it_value.tv_sec > 1000000) goto err; ret = timer_delete(timer); if (ret) return ret; return 0; err: timer_delete(timer); return ret; } int test_timerfd(void) { struct itimerspec timerspec; int timer, ret; timer = timerfd_create(CLOCK_MONOTONIC, 0); if (timer == -1) return -1; timerspec = (struct itimerspec) { .it_value.tv_sec = 1000000, }; ret = timerfd_settime(timer, 0, &timerspec, NULL); if (ret) goto err; timerspec = (struct itimerspec) { .it_value.tv_sec = -1, .it_value.tv_nsec = -1, .it_interval.tv_sec = -1, .it_interval.tv_nsec = -1, }; ret = timerfd_gettime(timer, &timerspec); if (ret) goto err; errno = EINVAL; ret = -1; if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec) goto err; if (timerspec.it_value.tv_sec > 1000000) goto err; ret = close(timer); if (ret) return ret; return 0; err: close(timer); return ret; } 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, mem_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_length = length + offset - pa_offset; mem = mmap(NULL, mem_length, PROT_READ, MAP_SHARED, fd, pa_offset); if (mem == MAP_FAILED) { ret = 1; goto end; } mem = mremap(mem, mem_length, mem_length * 2, MREMAP_MAYMOVE, 0); if (mem == MAP_FAILED) { munmap(mem, mem_length); ret = 1; goto end; } ret = munmap(mem, mem_length * 2); 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; } int test_openat(void) { int dev, null; dev = openat(AT_FDCWD, "/dev", O_DIRECTORY); if (dev < 0) return -1; null = openat(dev, "null", O_RDONLY); close(dev); if (null < 0) return -1; close(null); return 0; } int test_namespace(void) { int original_ns, new_ns, ret; ino_t original_ns_ino; struct stat stat_buf; original_ns = open("/proc/self/ns/uts", O_RDONLY); if (original_ns == -1) return -1; ret = fstat(original_ns, &stat_buf); if (ret) goto out; original_ns_ino = stat_buf.st_ino; ret = unshare(CLONE_NEWUTS); if (ret) goto out; new_ns = open("/proc/self/ns/uts", O_RDONLY); if (new_ns == -1) { ret = new_ns; goto out; } ret = fstat(new_ns, &stat_buf); close(new_ns); if (ret) goto out; if (stat_buf.st_ino == original_ns_ino) { errno = EINVAL; ret = -1; goto out; } ret = setns(original_ns, CLONE_NEWUTS); if (ret) goto out; new_ns = open("/proc/self/ns/uts", O_RDONLY); if (new_ns == -1) { ret = new_ns; goto out; } ret = fstat(new_ns, &stat_buf); if (ret) goto out; close(new_ns); if (stat_buf.st_ino != original_ns_ino) { errno = EINVAL; ret = -1; goto out; } ret = 0; out: close(original_ns); return ret; } /* 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 timespec ts; struct stat stat_buf; int euid0; int proc; int test; int tmp; struct iovec iov_one = { .iov_base = &tmp, .iov_len = 1, }; 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(access); EXPECT_SYSZR(proc, access("/proc/self", R_OK)); break; CASE_TEST(access_bad); EXPECT_SYSER(proc, access("/proc/self", W_OK), -1, EPERM); break; CASE_TEST(clock_getres); EXPECT_SYSZR(1, clock_getres(CLOCK_MONOTONIC, &ts)); break; CASE_TEST(clock_gettime); EXPECT_SYSZR(1, clock_gettime(CLOCK_MONOTONIC, &ts)); break; CASE_TEST(clock_settime); EXPECT_SYSER(1, clock_settime(CLOCK_MONOTONIC, &ts), -1, EINVAL); break; 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(clock_nanosleep); ts.tv_nsec = -1; EXPECT_EQ(1, EINVAL, clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL)); 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(fchdir_stdin); EXPECT_SYSER(1, fchdir(STDIN_FILENO), -1, ENOTDIR); break; CASE_TEST(fchdir_badfd); EXPECT_SYSER(1, fchdir(-1), -1, EBADF); break; CASE_TEST(file_stream); EXPECT_SYSZR(1, test_file_stream()); break; CASE_TEST(file_stream_wsr); EXPECT_SYSZR(1, test_file_stream_wsr()); break; CASE_TEST(fork); EXPECT_SYSZR(1, test_fork(FORK_STANDARD)); 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(directories); EXPECT_SYSZR(is_nolibc && proc, test_dirent()); break; CASE_TEST(getrandom); EXPECT_SYSZR(1, test_getrandom()); 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(nanosleep); ts.tv_nsec = -1; EXPECT_SYSER(1, nanosleep(&ts, NULL), -1, EINVAL); break; CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", O_RDONLY), -1); if (tmp != -1) close(tmp); break; CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", O_RDONLY), -1, ENOENT); if (tmp != -1) close(tmp); break; CASE_TEST(openat_dir); EXPECT_SYSZR(1, test_openat()); 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_rdev); EXPECT_SYSZR(1, ({ int ret = stat("/dev/null", &stat_buf); ret ?: stat_buf.st_rdev != makedev(1, 3); })); 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(timer); EXPECT_SYSZR(1, test_timer()); break; CASE_TEST(timerfd); EXPECT_SYSZR(1, test_timerfd()); 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(vfork); EXPECT_SYSZR(1, test_fork(FORK_VFORK)); 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(readv_badf); EXPECT_SYSER(1, readv(-1, &iov_one, 1), -1, EBADF); break; CASE_TEST(readv_zero); EXPECT_SYSZR(1, readv(0, NULL, 0)); break; CASE_TEST(writev_badf); EXPECT_SYSER(1, writev(-1, &iov_one, 1), -1, EBADF); break; CASE_TEST(writev_zero); EXPECT_SYSZR(1, writev(1, NULL, 0)); break; CASE_TEST(ptrace); tmp = ptrace(PTRACE_CONT, getpid(), NULL, NULL); EXPECT_SYSER(tmp != -1 && errno != ENOSYS, tmp, -1, EFAULT); 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_TEST(_syscall_noargs); EXPECT_SYSEQ(is_nolibc, _syscall(__NR_getpid), getpid()); break; CASE_TEST(_syscall_args); EXPECT_SYSEQ(is_nolibc, _syscall(__NR_statx, 0, NULL, 0, 0, NULL), -EFAULT); break; CASE_TEST(namespace); EXPECT_SYSZR(euid0 && proc, test_namespace()); break; case __LINE__: return ret; /* must be last */ /* note: do not set any defaults so as to permit holes above */ } } return ret; } int test_difftime(void) { if (difftime(200., 100.) != 100.) return 1; if (difftime(100., 200.) != -100.) return 1; return 0; } int test_time_types(void) { #ifdef NOLIBC struct __kernel_timespec kts; struct timespec ts; if (!__builtin_types_compatible_p(time_t, __kernel_time64_t)) return 1; if (sizeof(ts) != sizeof(kts)) return 1; if (!__builtin_types_compatible_p(__typeof__(ts.tv_sec), __typeof__(kts.tv_sec))) return 1; if (!__builtin_types_compatible_p(__typeof__(ts.tv_nsec), __typeof__(kts.tv_nsec))) return 1; if (offsetof(__typeof__(ts), tv_sec) != offsetof(__typeof__(kts), tv_sec)) return 1; if (offsetof(__typeof__(ts), tv_nsec) != offsetof(__typeof__(kts), tv_nsec)) return 1; #endif /* NOLIBC */ return 0; } int test_malloc(void) { size_t sz_array1, sz_array2, sz_array3; int *array1, *array2, *array3; int pagesize = getpagesize(); size_t idx; if (pagesize < 0) return 1; /* Dependent on the page size, as that is the granularity of our allocator. */ sz_array1 = pagesize / 2; array1 = malloc(sz_array1 * sizeof(*array1)); if (!array1) return 2; for (idx = 0; idx < sz_array1; idx++) array1[idx] = idx; sz_array2 = pagesize * 2; array2 = calloc(sz_array2, sizeof(*array2)); if (!array2) { free(array1); return 3; } for (idx = 0; idx < sz_array2; idx++) { if (array2[idx] != 0) { free(array2); return 4; } array2[idx] = idx + sz_array1; } /* Resize array1 into array3 and append array2 at the end. */ sz_array3 = sz_array1 + sz_array2; array3 = realloc(array1, sz_array3 * sizeof(*array3)); if (!array3) { free(array2); free(array1); return 5; } memcpy(array3 + sz_array1, array2, sizeof(*array2) * sz_array2); free(array2); /* The contents must be contiguous now. */ for (idx = 0; idx < sz_array3; idx++) if (array3[idx] != (int)idx) return 6; free(array3); return 0; } 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[11] = "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(strstr_foobar_foo); EXPECT_STREQ(1, strstr("foobar", "foo"), "foobar"); break; CASE_TEST(strstr_foobar_bar); EXPECT_STREQ(1, strstr("foobar", "bar"), "bar"); break; CASE_TEST(strstr_foobar_baz); EXPECT_PTREQ(1, strstr("foobar", "baz"), NULL); 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_TEST(tolower); EXPECT_EQ(1, tolower('A'), 'a'); break; CASE_TEST(tolower_noop); EXPECT_EQ(1, tolower('a'), 'a'); break; CASE_TEST(toupper); EXPECT_EQ(1, toupper('a'), 'A'); break; CASE_TEST(toupper_noop); EXPECT_EQ(1, toupper('A'), 'A'); break; CASE_TEST(abs); EXPECT_EQ(1, abs(-10), 10); break; CASE_TEST(abs_noop); EXPECT_EQ(1, abs(10), 10); break; CASE_TEST(difftime); EXPECT_ZR(1, test_difftime()); break; CASE_TEST(memchr_foobar6_o); EXPECT_STREQ(1, memchr("foobar", 'o', 6), "oobar"); break; CASE_TEST(memchr_foobar3_b); EXPECT_STRZR(1, memchr("foobar", 'b', 3)); break; CASE_TEST(time_types); EXPECT_ZR(is_nolibc, test_time_types()); break; CASE_TEST(makedev); EXPECT_EQ(1, makedev(0x12, 0x34), 0x1234); break; CASE_TEST(major); EXPECT_EQ(1, major(0x1234), 0x12); break; CASE_TEST(minor); EXPECT_EQ(1, minor(0x1234), 0x34); break; CASE_TEST(makedev_big); EXPECT_EQ(1, makedev(0x11223344, 0x55667788), 0x1122355667734488); break; CASE_TEST(major_big); EXPECT_EQ(1, major(0x1122355667734488), 0x11223344); break; CASE_TEST(minor_big); EXPECT_EQ(1, minor(0x1122355667734488), 0x55667788); break; CASE_TEST(malloc); EXPECT_ZR(1, test_malloc()); break; CASE_TEST(bswap_16); EXPECT_EQ(1, bswap_16(0x0123), 0x2301); break; CASE_TEST(bswap_32); EXPECT_EQ(1, bswap_32(0x01234567), 0x67452301); break; CASE_TEST(bswap_64); EXPECT_EQ(1, bswap_64(0x0123456789abcdef), 0xefcdab8967452301); break; CASE_TEST(htobe16); EXPECT_EQ(1, htobe16(is_le ? 0x0123 : 0x2301), 0x2301); break; CASE_TEST(htole16); EXPECT_EQ(1, htole16(is_le ? 0x0123 : 0x2301), 0x0123); break; CASE_TEST(htobe32); EXPECT_EQ(1, htobe32(is_le ? 0x01234567 : 0x67452301), 0x67452301); break; CASE_TEST(htole32); EXPECT_EQ(1, htole32(is_le ? 0x01234567 : 0x67452301), 0x01234567); break; CASE_TEST(htobe64); EXPECT_EQ(1, htobe64(is_le ? 0x0123456789000000 : 0x8967452301), 0x8967452301); break; CASE_TEST(htole64); EXPECT_EQ(1, htole64(is_le ? 0x0123456789 : 0x8967452301000000), 0x0123456789); 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(cond, expected, fmt, ...) \ do { if (!(cond)) result(llen, SKIPPED); else ret += expect_vfprintf(llen, expected, fmt, ##__VA_ARGS__); } while (0) #define VFPRINTF_LEN 25 static int expect_vfprintf(int llen, const char *expected, const char *fmt, ...) { char buf[VFPRINTF_LEN + 80]; unsigned int cmp_len; va_list args; ssize_t written, expected_len; /* Fill and terminate buf[] to check for overlong/absent writes */ memset(buf, 0xa5, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; va_start(args, fmt); /* Limit buffer length to test truncation */ written = vsnprintf(buf, VFPRINTF_LEN + 1, fmt, args); va_end(args); llen += printf(" \"%s\"", buf); expected_len = strlen(expected); if (expected_len > VFPRINTF_LEN) { /* Indicate truncated in test output */ llen += printf("+"); cmp_len = VFPRINTF_LEN; } else { cmp_len = expected_len; } if (memcmp(expected, buf, cmp_len) || buf[cmp_len]) { llen += printf(" should be \"%.*s\"", VFPRINTF_LEN, expected); result(llen, FAIL); return 1; } if (written != expected_len) { llen += printf(" written(%d) != %d", (int)written, (int)expected_len); result(llen, FAIL); return 1; } /* Check for any overwrites after the actual data. */ while (++cmp_len < sizeof(buf) - 1) { if ((unsigned char)buf[cmp_len] != 0xa5) { llen += printf(" overwrote buf[%d] with 0x%x", cmp_len, buf[cmp_len]); result(llen, FAIL); return 1; } } result(llen, OK); return 0; } static int test_scanf(void) { unsigned long long ull; unsigned long ul; unsigned int u; long long ll; long l; void *p; int i; /* return __LINE__ to point to the specific failure */ /* test EOF */ if (sscanf("", "foo") != EOF) return __LINE__; /* test simple literal without placeholder */ if (sscanf("foo", "foo") != 0) return __LINE__; /* test single placeholder */ if (sscanf("123", "%d", &i) != 1) return __LINE__; if (i != 123) return __LINE__; /* test multiple place holders and separators */ if (sscanf("a123b456c0x90", "a%db%uc%p", &i, &u, &p) != 3) return __LINE__; if (i != 123) return __LINE__; if (u != 456) return __LINE__; if (p != (void *)0x90) return __LINE__; /* test space handling */ if (sscanf("a b1", "a b%d", &i) != 1) return __LINE__; if (i != 1) return __LINE__; /* test literal percent */ if (sscanf("a%1", "a%%%d", &i) != 1) return __LINE__; if (i != 1) return __LINE__; /* test stdint.h types */ if (sscanf("1|2|3|4|5|6", "%d|%ld|%lld|%u|%lu|%llu", &i, &l, &ll, &u, &ul, &ull) != 6) return __LINE__; if (i != 1 || l != 2 || ll != 3 || u != 4 || ul != 5 || ull != 6) return __LINE__; return 0; } static int test_printf_error(void) { int fd, ret, saved_errno; fd = open("/dev/full", O_RDWR); if (fd == -1) return 1; errno = 0; ret = dprintf(fd, "foo"); saved_errno = errno; close(fd); if (ret != -1) return 2; if (saved_errno != ENOSPC) return 3; return 0; } int test_asprintf(void) { char *str; int ret; ret = asprintf(&str, "foo%s", "bar"); if (ret == -1) return 1; if (ret != 6) { free(str); return 2; } if (memcmp(str, "foobar", 6) != 0) { free(str); return 3; } free(str); return 0; } static int run_printf(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(1, "", ""); break; CASE_TEST(simple); EXPECT_VFPRINTF(1, "foo", "foo"); break; CASE_TEST(string); EXPECT_VFPRINTF(1, "foo", "%s", "foo"); break; CASE_TEST(number); EXPECT_VFPRINTF(1, "1234", "%d", 1234); break; CASE_TEST(negnumber); EXPECT_VFPRINTF(1, "-1234", "%d", -1234); break; CASE_TEST(num_sign); EXPECT_VFPRINTF(1, "| 1|+2|+3|+4|5|", "|% d|%+d|% +d|%+ d|%#d|", 1, 2, 3, 4, 5); break; CASE_TEST(unsigned); EXPECT_VFPRINTF(1, "12345", "%u", 12345); break; CASE_TEST(signed_max); EXPECT_VFPRINTF(1, "2147483647", "%i", ~0u >> 1); break; CASE_TEST(signed_min); EXPECT_VFPRINTF(1, "-2147483648", "%i", (~0u >> 1) + 1); break; CASE_TEST(unsigned_max); EXPECT_VFPRINTF(1, "4294967295", "%u", ~0u); break; CASE_TEST(char); EXPECT_VFPRINTF(1, "|c|d| e|", "|%c|%.0c|%4c|", 'c', 'd', 'e'); break; CASE_TEST(octal); EXPECT_VFPRINTF(1, "|17| 0033||", "|%o|%6.4o|%.0o|", 017, 033, 0); break; CASE_TEST(octal_max); EXPECT_VFPRINTF(1, "1777777777777777777777", "%llo", ~0ULL); break; 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; CASE_TEST(hex_nolibc); EXPECT_VFPRINTF(is_nolibc, "|f|d|", "|%x|%X|", 0xf, 0xd); break; CASE_TEST(hex_libc); EXPECT_VFPRINTF(!is_nolibc, "|f|D|", "|%x|%X|", 0xf, 0xd); break; CASE_TEST(hex_alt); EXPECT_VFPRINTF(1, "|0x1| 0x2| 0|", "|%#x|%#5x|%#5x|", 1, 2, 0); break; CASE_TEST(hex_alt_prec); EXPECT_VFPRINTF(1, "| 0x02|0x03| 0x123|", "|%#5.2x|%#04x|%#6.2x|", 2, 3, 0x123); break; CASE_TEST(hex_0_alt); EXPECT_VFPRINTF(1, "|0|0000| 00|", "|%#x|%#04x|%#5.2x|", 0, 0, 0); break; CASE_TEST(pointer); EXPECT_VFPRINTF(1, "0x1", "%p", (void *) 0x1); break; CASE_TEST(pointer_NULL); EXPECT_VFPRINTF(is_nolibc || is_glibc, "|(nil)|(nil)|", "|%p|%.4p|", (void *)0, (void *)0); break; CASE_TEST(string_NULL); EXPECT_VFPRINTF(is_nolibc || is_glibc, "|(null)||(null)|", "|%s|%.5s|%.6s|", (void *)0, (void *)0, (void *)0); break; CASE_TEST(percent); EXPECT_VFPRINTF(1, "a%d42%69%", "a%%d%d%%%d%%", 42, 69); break; CASE_TEST(perc_qual); EXPECT_VFPRINTF(is_nolibc || is_glibc, "a%d2", "a%-14l%d%d", 2); break; CASE_TEST(invalid); EXPECT_VFPRINTF(is_nolibc || is_glibc, "a%12yx3%y42%P", "a%12yx%d%y%d%P", 3, 42); break; CASE_TEST(intmax_max); EXPECT_VFPRINTF(1, "9223372036854775807", "%lld", ~0ULL >> 1); break; CASE_TEST(intmax_min); EXPECT_VFPRINTF(is_nolibc || is_glibc, "-9223372036854775808", "%Li", (~0ULL >> 1) + 1); break; CASE_TEST(uintmax_max); EXPECT_VFPRINTF(1, "18446744073709551615", "%ju", ~0ULL); break; CASE_TEST(truncation); EXPECT_VFPRINTF(1, "012345678901234567890123456789", "%s", "012345678901234567890123456789"); break; CASE_TEST(string_width); EXPECT_VFPRINTF(1, " 1", "%10s", "1"); break; CASE_TEST(string_trunc); EXPECT_VFPRINTF(1, " 12345", "%10.5s", "1234567890"); break; 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; CASE_TEST(number_width); EXPECT_VFPRINTF(1, " 1", "%10d", 1); break; CASE_TEST(number_left); EXPECT_VFPRINTF(1, "|-5 |", "|%-8d|", -5); break; CASE_TEST(string_align); EXPECT_VFPRINTF(1, "|foo |", "|%-8s|", "foo"); break; CASE_TEST(width_trunc); EXPECT_VFPRINTF(1, " 1", "%30d", 1); break; CASE_TEST(width_tr_lft); EXPECT_VFPRINTF(1, "1 ", "%-30d", 1); break; CASE_TEST(number_pad); EXPECT_VFPRINTF(1, "0000000005", "%010d", 5); break; CASE_TEST(number_pad); EXPECT_VFPRINTF(1, "|0000000005|0x1234|", "|%010d|%#01x|", 5, 0x1234); break; CASE_TEST(num_pad_neg); EXPECT_VFPRINTF(1, "-000000005", "%010d", -5); break; CASE_TEST(num_pad_hex); EXPECT_VFPRINTF(1, "00fffffffb", "%010x", -5); break; CASE_TEST(num_pad_trunc);EXPECT_VFPRINTF(is_nolibc, " 0000000000000000000000000000005", "%035d", 5); break; /* max 31 '0' can be added */ CASE_TEST(num_p_tr_libc);EXPECT_VFPRINTF(!is_nolibc, "00000000000000000000000000000000005", "%035d", 5); break; CASE_TEST(number_prec); EXPECT_VFPRINTF(1, " 00005", "%10.5d", 5); break; CASE_TEST(num_prec_neg); EXPECT_VFPRINTF(1, " -00005", "%10.5d", -5); break; CASE_TEST(number_var); EXPECT_VFPRINTF(1, "| -00005|5 |", "|%*.*d|%*.*d|", 10, 5, -5, -2, -10, 5); break; CASE_TEST(num_0_prec_0); EXPECT_VFPRINTF(1, "|| |+||||", "|%.0d|% .0d|%+.0d|%.0u|%.0x|%#.0x|", 0, 0, 0, 0, 0, 0); break; CASE_TEST(errno); errno = 22; EXPECT_VFPRINTF(is_nolibc, "errno=22", "%m"); break; CASE_TEST(errno-neg); errno = -22; EXPECT_VFPRINTF(is_nolibc, "errno=-22 ", "%-12m"); break; CASE_TEST(scanf); EXPECT_ZR(1, test_scanf()); break; CASE_TEST(printf_error); EXPECT_ZR(1, test_printf_error()); break; CASE_TEST(asprintf); EXPECT_ZR(1, test_asprintf()); break; case __LINE__: return ret; /* must be last */ /* note: do not set any defaults so as to permit holes above */ } } return ret; } __attribute__((no_sanitize("undefined"))) 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 || stat("/dev/full", &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)); mknod("/dev/full", 0666 | S_IFCHR, makedev(1, 7)); } } } /* 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 = "printf", .func = run_printf }, { .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; }
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1