glibc/posix/annexc.c
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

896 lines
28 KiB
C

/* Copyright (C) 1998-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <ctype.h>
#include <fnmatch.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <sys/wait.h>
#define HEADER_MAX 256
static char macrofile[] = "/tmp/annexc.XXXXXX";
/* <aio.h>. */
static const char *const aio_syms[] =
{
"AIO_ALLDONE", "AIO_CANCELED", "AIO_NOTCANCELED", "LIO_NOP", "LIO_NOWAIT",
"LIO_READ", "LIO_WAIT", "LIO_WRITE",
/* From <fcntl.h>. */
"FD_CLOEXEC", "F_DUPFD", "F_GETFD", "F_GETFL", "F_GETLK", "F_RDLCK",
"F_SETFD", "F_SETFL", "F_SETLK", "F_SETLKW", "F_UNLCK", "F_WRLCK",
"O_ACCMODE", "O_APPEND", "O_CREAT", "O_DSYNC", "O_EXCL", "O_NOCTTY",
"O_NONBLOCK", "O_RDONLY", "O_RDWR", "O_RSYNC", "O_SYNC", "O_TRUNC",
"O_WRONLY",
/* From <signal.h>. */
"SA_NOCLDSTOP", "SA_SIGINFO", "SIGABRT", "SIGALRM", "SIGBUS", "SIGCHLD",
"SIGCONT", "SIGEV_NONE", "SIGEV_SIGNAL", "SIGEV_SIGNAL", "SIGEV_THREAD",
"SIGFPE", "SIGHUP", "SIGILL", "SIGINT", "SIGKILL", "SIGPIPE", "SIGQUIT",
"SIGRTMAX", "SIGRTMIN", "SIGSEGV", "SIGSTOP", "SIGTERM", "SIGTSTP",
"SIGTTIN", "SIGTTOU", "SIGUSR1", "SIGUSR2", "SIG_BLOCK", "SIG_DFL",
"SIG_ERR", "SIG_IGN", "SIG_SETMASK", "SIG_UNBLOCK", "SI_ASYNCIO",
"SI_MESGQ", "SI_QUEUE", "SI_TIMER", "SI_USER"
};
static const char *const aio_maybe[] =
{
"aio_cancel", "aio_error", "aio_fsync", "aio_read", "aio_return",
"aio_suspend", "aio_write", "lio_listio",
/* From <fcntl.h>. */
"creat", "fcntl", "open", "SEEK_CUR", "SEEK_END", "SEEK_SET", "S_IRGRP",
"S_IROTH", "S_IRUSR", "S_IRWXG", "S_IRWXO", "S_IRWXU", "S_ISBLK",
"S_ISCHR", "S_ISDIR", "S_ISFIFO", "S_ISGID", "S_ISREG", "S_ISUID",
"S_IWGRP", "S_IWOTH", "S_IWUSR", "S_IXGRP", "S_IXOTH", "S_IXUSR",
/* From <signal.h>. */
"kill", "raise", "sigaction", "sigaddset", "sigdelset", "sigemptyset",
"sigfillset", "sigismember", "signal", "sigpending", "sigprocmask",
"sigqueue", "sigsuspend", "sigtimedwait", "sigwait", "sigwaitinfo"
};
/* <assert.h>. */
static const char *const assert_syms[] =
{
"assert"
};
static const char *const assert_maybe[] =
{
};
/* <ctype.h>. */
static const char *const ctype_syms[] =
{
};
static const char *const ctype_maybe[] =
{
"isalnum", "isalpha", "iscntrl", "isdigit", "isgraph", "islower",
"isprint", "ispunct", "isspace", "isupper", "isxdigit", "tolower",
"toupper"
};
/* <dirent.h>. */
static const char *const dirent_syms[] =
{
};
static const char *const dirent_maybe[] =
{
"closedir", "opendir", "readdir", "readdir_r", "rewinddir"
};
/* <errno.h>. */
static const char *const errno_syms[] =
{
"E2BIG", "EACCES", "EAGAIN", "EBADF", "EBADMSG", "EBUSY", "ECANCELED",
"ECHILD", "EDEADLK", "EDOM", "EEXIST", "EFAULT", "EFBIG", "EINPROGRESS",
"EINTR", "EINVAL", "EIO", "EISDIR", "EMFILE", "EMLINK", "EMSGSIZE",
"ENAMETOOLONG", "ENFILE", "ENODEV", "ENOENT", "ENOEXEC", "ENOLCK",
"ENOMEM", "ENOSPC", "ENOSYS", "ENOTDIR", "ENOTEMPTY", "ENOTSUP",
"ENOTTY", "ENXIO", "EPERM", "EPIPE", "ERANGE", "EROFS", "ESPIPE",
"ESRCH", "ETIMEDOUT", "EXDEV"
};
static const char *const errno_maybe[] =
{
"errno", "E*"
};
/* <fcntl.h>. */
static const char *const fcntl_syms[] =
{
"FD_CLOEXEC", "F_DUPFD", "F_GETFD", "F_GETFL", "F_GETLK", "F_RDLCK",
"F_SETFD", "F_SETFL", "F_SETLK", "F_SETLKW", "F_UNLCK", "F_WRLCK",
"O_ACCMODE", "O_APPEND", "O_CREAT", "O_DSYNC", "O_EXCL", "O_NOCTTY",
"O_NONBLOCK", "O_RDONLY", "O_RDWR", "O_RSYNC", "O_SYNC", "O_TRUNC",
"O_WRONLY"
};
static const char *const fcntl_maybe[] =
{
"creat", "fcntl", "open", "SEEK_CUR", "SEEK_END", "SEEK_SET", "S_IRGRP",
"S_IROTH", "S_IRUSR", "S_IRWXG", "S_IRWXO", "S_IRWXU", "S_ISBLK",
"S_ISCHR", "S_ISDIR", "S_ISFIFO", "S_ISGID", "S_ISREG", "S_ISUID",
"S_IWGRP", "S_IWOTH", "S_IWUSR", "S_IXGRP", "S_IXOTH", "S_IXUSR"
};
/* <float.h>. */
static const char *const float_syms[] =
{
"DBL_DIG", "DBL_EPSILON", "DBL_MANT_DIG", "DBL_MAX", "DBL_MAX_10_EXP",
"DBL_MAX_EXP", "DBL_MIN", "DBL_MIN_10_EXP", "DBL_MIN_EXP", "FLT_DIG",
"FLT_EPSILON", "FLT_MANT_DIG", "FLT_MAX", "FLT_MAX_10_EXP", "FLT_MAX_EXP",
"FLT_MIN", "FLT_MIN_10_EXP", "FLT_MIN_EXP", "FLT_RADIX", "FLT_ROUNDS",
"LDBL_DIG", "LDBL_EPSILON", "LDBL_MANT_DIG", "LDBL_MAX", "LDBL_MAX_10_EXP",
"LDBL_MAX_EXP", "LDBL_MIN", "LDBL_MIN_10_EXP", "LDBL_MIN_EXP"
};
static const char *const float_maybe[] =
{
};
/* <grp.h>. */
static const char *const grp_syms[] =
{
};
static const char *const grp_maybe[] =
{
"getgrgid", "getgrgid_r", "getgrnam", "getgrnam_r"
};
/* <limits.h>. */
static const char *const limits_syms[] =
{
"_POSIX_AIO_LISTIO_MAX", "_POSIX_AIO_MAX", "_POSIX_ARG_MAX",
"_POSIX_CHILD_MAX", "_POSIX_CLOCKRES_MAX", "_POSIX_DELAYTIMER_MAX",
"_POSIX_LINK_MAX", "_POSIX_LOGIN_NAME_MAX", "_POSIX_MAX_CANON",
"_POSIX_MAX_INPUT", "_POSIX_MQ_OPEN_MAX", "_POSIX_MQ_PRIO_MAX",
"_POSIX_NAME_MAX", "_POSIX_NGROUPS_MAX", "_POSIX_OPEN_MAX",
"_POSIX_PATH_MAX", "_POSIX_PIPE_BUF", "_POSIX_RTSIG_MAX",
"_POSIX_SEM_NSEMS_MAX", "_POSIX_SEM_VALUE_MAX", "_POSIX_SIGQUEUE_MAX",
"_POSIX_SSIZE_MAX", "_POSIX_STREAM_MAX",
"_POSIX_THREAD_DESTRUCTOR_ITERATIONS", "_POSIX_THREAD_KEYS_MAX",
"_POSIX_THREAD_THREADS_MAX", "_POSIX_TIMER_MAX", "_POSIX_TTY_NAME_MAX",
"_POSIX_TZNAME_MAX", "_POSIX_THREAD_DESTRUCTOR_ITERATIONS",
"CHAR_BIT", "CHAR_MAX", "CHAR_MIN", "INT_MAX", "INT_MIN", "LONG_MAX",
"LONG_MIN", "MB_LEN_MAX", "NGROUPS_MAX", "PAGESIZE", "SCHAR_MAX",
"SCHAR_MIN", "SHRT_MAX", "SHRT_MIN", "UCHAR_MAX", "UINT_MAX",
"ULONG_MAX", "USHRT_MAX"
};
static const char *const limits_maybe[] =
{
"AIO_LISTIO_MAX", "AIO_MAX", "ARG_MAX", "CHILD_MAX", "DELAYTIMER_MAX",
"LINK_MAX", "LOGIN_NAME_MAX", "LONG_MAX", "LONG_MIN", "MAX_CANON",
"MAX_INPUT", "MQ_OPEN_MAX", "MQ_PRIO_MAX", "NAME_MAX", "OPEN_MAX",
"PATH_MAX", "PIPE_BUF", "RTSIG_MAX", "PTHREAD_DESTRUCTOR_ITERATIONS",
"PTHREAD_KEYS_MAX", "PTHREAD_STACK_MIN", "PTHREAD_THREADS_MAX"
};
/* <locale.h>. */
static const char *const locale_syms[] =
{
"LC_ALL", "LC_COLLATE", "LC_CTYPE", "LC_MONETARY", "LC_NUMERIC",
"LC_TIME", "NULL"
};
static const char *const locale_maybe[] =
{
"LC_*", "localeconv", "setlocale"
};
/* <math.h>. */
static const char *const math_syms[] =
{
"HUGE_VAL"
};
static const char *const math_maybe[] =
{
"acos", "asin", "atan2", "atan", "ceil", "cos", "cosh", "exp",
"fabs", "floor", "fmod", "frexp", "ldexp", "log10", "log", "modf",
"pow", "sin", "sinh", "sqrt", "tan", "tanh",
"acosf", "asinf", "atan2f", "atanf", "ceilf", "cosf", "coshf", "expf",
"fabsf", "floorf", "fmodf", "frexpf", "ldexpf", "log10f", "logf", "modff",
"powf", "sinf", "sinhf", "sqrtf", "tanf", "tanhf",
"acosl", "asinl", "atan2l", "atanl", "ceill", "cosl", "coshl", "expl",
"fabsl", "floorl", "fmodl", "frexpl", "ldexpl", "log10l", "logl", "modfl",
"powl", "sinl", "sinhl", "sqrtl", "tanl", "tanhl"
};
/* <mqueue.h>. */
static const char *const mqueue_syms[] =
{
};
static const char *const mqueue_maybe[] =
{
"mq_close", "mq_getattr", "mq_notify", "mq_open", "mq_receive",
"mq_send", "mq_setattr", "mq_unlink"
};
/* <pthread.h>. */
static const char *const pthread_syms[] =
{
"PTHREAD_CANCELED", "PTHREAD_CANCEL_ASYNCHRONOUS",
"PTHREAD_CANCEL_DEFERRED", "PTHREAD_CANCEL_DISABLE", "PTHREAD_CANCEL_ENABLE",
"PTHREAD_COND_INITIALIZER", "PTHREAD_CREATE_DETACHED",
"PTHREAD_CREATE_JOINABLE", "PTHREAD_EXPLICIT_SCHED",
"PTHREAD_INHERIT_SCHED", "PTHREAD_MUTEX_INITIALIZER",
"PTHREAD_ONCE_INIT", "PTHREAD_PRIO_INHERIT", "PTHREAD_PRIO_NONE",
"PTHREAD_PRIO_PROTECT", "PTHREAD_PROCESS_PRIVATE",
"PTHREAD_PROCESS_SHARED", "PTHREAD_SCOPE_PROCESS", "PTHREAD_SCOPE_SYSTEM",
/* These come from <sched.h>. */
"SCHED_FIFO", "SCHED_OTHER", "SCHED_RR",
/* These come from <time.h>. */
"CLK_TCK", "CLOCKS_PER_SEC", "CLOCK_REALTIME", "NULL", "TIMER_ABSTIME"
};
static const char *const pthread_maybe[] =
{
"pthread_atfork", "pthread_attr_destroy", "pthread_attr_getdetachstate",
"pthread_attr_getinheritsched", "pthread_attr_getschedparam",
"pthread_attr_getschedpolicy", "pthread_attr_getscope",
"pthread_attr_getstackaddr", "pthread_attr_getstacksize",
"pthread_attr_init", "pthread_attr_setdetachstate",
"pthread_attr_setinheritsched", "pthread_attr_setschedparam",
"pthread_attr_setschedpolicy", "pthread_attr_setscope",
"pthread_attr_setstackaddr", "pthread_attr_setstacksize",
"pthread_cleanup_pop", "pthread_cleanup_push", "pthread_cond_broadcast",
"pthread_cond_destroy", "pthread_cond_init", "pthread_cond_signal",
"pthread_cond_timedwait", "pthread_cond_wait", "pthread_condattr_destroy",
"pthread_condattr_getpshared", "pthread_condattr_init",
"pthread_condattr_setpshared", "pthread_create", "pthread_detach",
"pthread_equal", "pthread_exit", "pthread_getspecific", "pthread_join",
"pthread_key_create", "pthread_key_destroy", "pthread_kill",
"pthread_mutex_destroy", "pthread_mutex_getprioceiling",
"pthread_mutex_init", "pthread_mutex_lock", "pthread_mutex_setprioceiling",
"pthread_mutex_trylock", "pthread_mutex_unlock", "pthread_mutexattr_destroy",
"pthread_mutexattr_getprioceiling", "pthread_mutexattr_getprotocol",
"pthread_mutexattr_getpshared", "pthread_mutexattr_init",
"pthread_mutexattr_setprioceiling", "pthread_mutexattr_setprotocol",
"pthread_mutexattr_setpshared", "pthread_once", "pthread_self",
"pthread_setcancelstate", "pthread_setcanceltype", "pthread_setspecific",
"pthread_sigmask", "pthread_testcancel"
/* These come from <sched.h>. */
"sched_get_priority_max", "sched_get_priority_min",
"sched_get_rr_interval", "sched_getparam", "sched_getscheduler",
"sched_setparam", "sched_setscheduler", "sched_yield",
/* These come from <time.h>. */
"asctime", "asctime_r", "clock", "clock_getres", "clock_gettime",
"clock_settime", "ctime", "ctime_r", "difftime", "gmtime", "gmtime_r",
"localtime", "localtime_r", "mktime", "nanosleep", "strftime", "time",
"timer_create", "timer_delete", "timer_getoverrun", "timer_gettime",
"timer_settime", "tzset"
};
/* <pwd.h>. */
static const char *const pwd_syms[] =
{
};
static const char *const pwd_maybe[] =
{
"getpwnam", "getpwnam_r", "getpwuid", "getpwuid_r"
};
/* <sched.h>. */
static const char *const sched_syms[] =
{
"SCHED_FIFO", "SCHED_OTHER", "SCHED_RR",
};
static const char *const sched_maybe[] =
{
"sched_get_priority_max", "sched_get_priority_min",
"sched_get_rr_interval", "sched_getparam", "sched_getscheduler",
"sched_setparam", "sched_setscheduler", "sched_yield",
/* These come from <time.h>. */
"CLK_TCK", "CLOCKS_PER_SEC", "CLOCK_REALTIME", "NULL", "TIMER_ABSTIME"
"asctime", "asctime_r", "clock", "clock_getres", "clock_gettime",
"clock_settime", "ctime", "ctime_r", "difftime", "gmtime", "gmtime_r",
"localtime", "localtime_r", "mktime", "nanosleep", "strftime", "time",
"timer_create", "timer_delete", "timer_getoverrun", "timer_gettime",
"timer_settime", "tzset"
};
/* <semaphore.h>. */
static const char *const semaphore_syms[] =
{
};
static const char *const semaphore_maybe[] =
{
"sem_close", "sem_destroy", "sem_getvalue", "sem_init", "sem_open",
"sen_post", "sem_trywait", "sem_unlink", "sem_wait"
};
/* <setjmp.h>. */
static const char *const setjmp_syms[] =
{
};
static const char *const setjmp_maybe[] =
{
"longjmp", "setjmp", "siglongjmp", "sigsetjmp"
};
/* <signal.h>. */
static const char *const signal_syms[] =
{
"SA_NOCLDSTOP", "SA_SIGINFO", "SIGABRT", "SIGALRM", "SIGBUS", "SIGCHLD",
"SIGCONT", "SIGEV_NONE", "SIGEV_SIGNAL", "SIGEV_THREAD",
"SIGFPE", "SIGHUP", "SIGILL", "SIGINT", "SIGKILL", "SIGPIPE", "SIGQUIT",
"SIGRTMAX", "SIGRTMIN", "SIGSEGV", "SIGSTOP", "SIGTERM", "SIGTSTP",
"SIGTTIN", "SIGTTOU", "SIGUSR1", "SIGUSR2", "SIG_BLOCK", "SIG_DFL",
"SIG_ERR", "SIG_IGN", "SIG_SETMASK", "SIG_UNBLOCK", "SI_ASYNCIO",
"SI_MESGQ", "SI_QUEUE", "SI_TIMER", "SI_USER"
};
static const char *const signal_maybe[] =
{
"kill", "raise", "sigaction", "sigaddset", "sigdelset", "sigemptyset",
"sigfillset", "sigismember", "signal", "sigpending", "sigprocmask",
"sigqueue", "sigsuspend", "sigtimedwait", "sigwait", "sigwaitinfo"
};
/* <stdarg.h>. */
static const char *const stdarg_syms[] =
{
"va_arg", "va_end", "va_start"
};
static const char *const stdarg_maybe[] =
{
"va_list"
};
/* <stddef.h>. */
static const char *const stddef_syms[] =
{
"NULL", "offsetof"
};
static const char *const stddef_maybe[] =
{
};
/* <stdio.h>. */
static const char *const stdio_syms[] =
{
"BUFSIZ", "EOF", "FILENAME_MAX", "FOPEN_MAX", "L_ctermid", "L_cuserid",
"L_tmpnam", "NULL", "SEEK_CUR", "SEEK_END", "SEEK_SET", "STREAM_MAX",
"TMP_MAX", "stderr", "stdin", "stdout", "_IOFBF", "_IOLBF", "_IONBF"
};
static const char *const stdio_maybe[] =
{
"clearerr", "fclose", "fdopen", "feof", "ferror", "fflush", "fgetc",
"fgetpos", "fgets", "fileno", "flockfile", "fopen", "fprintf", "fputc",
"fputs", "fread", "freopen", "fscanf", "fseek", "fsetpos", "ftell",
"ftrylockfile", "funlockfile", "fwrite", "getc", "getchar",
"getchar_unlocked", "getc_unlocked", "gets", "perror", "printf", "putc",
"putchar", "putchar_unlocked", "putc_unlocked", "puts", "remove", "rename",
"rewind", "scanf", "setbuf", "setvbuf", "sprintf", "sscanf", "tmpfile",
"tmpnam", "ungetc", "vfprintf", "vprintf", "vsprintf"
};
/* <stdlib.h>. */
static const char *const stdlib_syms[] =
{
"EXIT_FAILURE", "EXIT_SUCCESS", "MB_CUR_MAX", "NULL", "RAND_MAX"
};
static const char *const stdlib_maybe[] =
{
"abort", "abs", "atexit", "atof", "atoi", "atol", "bsearch", "calloc",
"div", "exit", "free", "getenv", "labs", "ldiv", "malloc", "mblen",
"mbstowcs", "mbtowc", "qsort", "rand", "rand_r", "realloc", "srand",
"strtod", "strtol", "strtoul", "system", "wcstombs", "wctomb"
};
/* <string.h>. */
static const char *const string_syms[] =
{
"NULL"
};
static const char *const string_maybe[] =
{
"memchr", "memcmp", "memcpy", "memmove", "memset", "strcat", "strchr",
"strcmp", "strcoll", "strcpy", "strcspn", "strerror", "strlen",
"strncat", "strncmp", "strncpy", "strpbrk", "strrchr", "strspn",
"strstr", "strtok", "strtok_r", "strxfrm"
};
/* <sys/mman.h>. */
static const char *const mman_syms[] =
{
"MAP_FAILED", "MAP_FIXED", "MAP_PRIVATE", "MAP_SHARED", "MCL_CURRENT",
"MCL_FUTURE", "MS_ASYNC", "MS_INVALIDATE", "MS_SYNC", "PROT_EXEC",
"PROT_NONE", "PROT_READ", "PROT_WRITE"
};
static const char *const mman_maybe[] =
{
"mlock", "mlockall", "mmap", "mprotect", "msync", "munlock", "munlockall",
"munmap", "shm_open", "shm_unlock"
};
/* <sys/stat.h>. */
static const char *const stat_syms[] =
{
"S_IRGRP", "S_IROTH", "S_IRUSR", "S_IRWXG", "S_IRWXO", "S_IRWXU",
"S_ISBLK", "S_ISCHR", "S_ISDIR", "S_ISFIFO", "S_ISGID", "S_ISREG",
"S_ISUID", "S_IWGRP", "S_IWOTH", "S_IWUSR", "S_IXGRP", "S_IXOTH",
"S_IXUSR", "S_TYPEISMQ", "S_TYPEISSEM", "S_TYPEISSHM"
};
static const char *const stat_maybe[] =
{
"chmod", "fchmod", "fstat", "mkdir", "mkfifo", "stat", "umask"
};
/* <sys/times.h>. */
static const char *const times_syms[] =
{
};
static const char *const times_maybe[] =
{
"times"
};
/* <sys/types.h>. */
static const char *const types_syms[] =
{
};
static const char *const types_maybe[] =
{
};
/* <sys/utsname.h>. */
static const char *const utsname_syms[] =
{
};
static const char *const utsname_maybe[] =
{
"uname"
};
/* <sys/wait.h>. */
static const char *const wait_syms[] =
{
"WEXITSTATUS", "WIFEXITED", "WIFSIGNALED", "WIFSTOPPED", "WNOHANG",
"WSTOPSIG", "WTERMSIG", "WUNTRACED"
};
static const char *const wait_maybe[] =
{
"wait", "waitpid"
};
/* <termios.h>. */
static const char *const termios_syms[] =
{
"B0", "B110", "B1200", "B134", "B150", "B1800", "B19200", "B200", "B2400",
"B300", "B38400", "B4800", "B50", "B600", "B75", "B9600", "BRKINT", "CLOCAL",
"CREAD", "CS5", "CS6", "CS7", "CS8", "CSIZE", "CSTOPN", "ECHO", "ECHOE",
"ECHOK", "ECHONL", "HUPCL", "ICANON", "ICRNL", "IEXTEN", "IGNBRK", "IGNCR",
"IGNPAR", "INCLR", "INPCK", "ISIG", "ISTRIP", "IXOFF", "IXON", "NCCS",
"NOFLSH", "OPOST", "PARENB", "PARMRK", "PARODD", "TCIFLUSH", "TCIOFF",
"TCIOFLUSH", "TCOFLUSH", "TCOOFF", "TCOON", "TCSADRAIN", "TCSAFLUSH",
"TCSANOW", "TOSTOP", "VEOF", "VEOL", "VERASE", "VINTR", "VKILL", "VMIN",
"VQUIT", "VSTART", "VSTOP", "VSUSP", "VTIME"
};
static const char *const termios_maybe[] =
{
"cfgetispeed", "cfgetospeed", "cfsetispeed", "cfsetospeed", "tcdrain",
"tcflow", "tcflush", "tcgetattr", "tcsendbrk", "tcsetattr"
};
/* <time.h>. */
static const char *const time_syms[] =
{
"CLK_TCK", "CLOCKS_PER_SEC", "CLOCK_REALTIME", "NULL", "TIMER_ABSTIME"
};
static const char *const time_maybe[] =
{
"asctime", "asctime_r", "clock", "clock_getres", "clock_gettime",
"clock_settime", "ctime", "ctime_r", "difftime", "gmtime", "gmtime_r",
"localtime", "localtime_r", "mktime", "nanosleep", "strftime", "time",
"timer_create", "timer_delete", "timer_getoverrun", "timer_gettime",
"timer_settime", "tzset"
};
/* <unistd.h>. */
static const char *const unistd_syms[] =
{
"F_OK", "NULL", "R_OK", "SEEK_CUR", "SEEK_END", "SEEK_SET", "STDERR_FILENO",
"STDIN_FILENO", "STDOUT_FILENO", "W_OK", "X_OK",
"_PC_ASYNC_IO", "_PC_CHOWN_RESTRICTED", "_PC_LINK_MAX", "_PC_MAX_CANON",
"_PC_MAX_INPUT", "_PC_NAME_MAX", "_PC_NO_TRUNC", "_PC_PATH_MAX",
"_PC_PIPE_BUF", "_PC_PRIO_IO", "_PC_SYNC_IO", "_PC_VDISABLE",
"_SC_AIO_LISTIO_MAX", "_SC_AIO_MAX", "_SC_AIO_PRIO_DELTA_MAX",
"_SC_ARG_MAX", "_SC_ASYNCHRONOUS_IO", "_SC_CHILD_MAX", "_SC_CLK_TCK",
"_SC_DELAYTIMER_MAX", "_SC_FSYNC", "_SC_GETGR_R_SIZE_MAX",
"_SC_GETPW_R_SIZE_MAX", "_SC_JOB_CONTROL", "_SC_LOGIN_NAME_MAX",
"_SC_MAPPED_FILES", "_SC_MEMLOCK", "_SC_MEMLOCK_RANGE",
"_SC_MEMORY_PROTECTION", "_SC_MESSAGE_PASSING", "_SC_MQ_OPEN_MAX",
"_SC_MQ_PRIO_MAX", "_SC_NGROUPS_MAX", "_SC_OPEN_MAX", "_SC_PAGESIZE",
"_SC_PRIORITIZED_IO", "_SC_PRIORITY_SCHEDULING", "_SC_REALTIME_SIGNALS",
"_SC_RTSIG_MAX", "_SC_SAVED_IDS", "_SC_SEMAPHORES", "_SC_SEM_NSEMS_MAX",
"_SC_SEM_VALUE_MAX", "_SC_SHARED_MEMORY_OBJECTS", "_SC_SIGQUEUE_MAX",
"_SC_STREAM_MAX", "_SC_SYNCHRONIZED_IO", "_SC_THREADS",
"_SC_THREAD_ATTR_STACKADDR", "_SC_THREAD_ATTR_STACKSIZE",
"_SC_THREAD_DESTRUCTOR_ITERATIONS", "_SC_THREAD_PRIO_INHERIT",
"_SC_THREAD_PRIORITY_SCHEDULING", "_SC_THREAD_PRIO_PROTECT",
"_SC_THREAD_PROCESS_SHARED", "_SC_THREAD_SAFE_FUNCTIONS",
"_SC_THREAD_STACK_MIN", "_SC_THREAD_THREADS_MAX", "_SC_TIMERS",
"_SC_TIMER_MAX", "_SC_TTY_NAME_MAX", "_SC_TZNAME_MAX", "_SC_VERSION"
};
static const char *const unistd_maybe[] =
{
"_POSIX_ASYNCHRONOUS_IO", "_POSIX_ASYNC_IO", "_POSIX_CHOWN_RESTRICTED",
"_POSIX_FSYNC", "_POSIX_JOB_CONTROL", "_POSIX_MAPPED_FILES",
"_POSIX_MEMLOCK", "_POSIX_MEMLOCK_RANGE", "_MEMORY_PROTECTION",
"_POSIX_MESSAGE_PASSING", "_POSIX_NO_TRUNC", "_POSIX_PRIORITIZED_IO",
"_POSIX_PRIORITY_SCHEDULING", "_POSIX_PRIO_IO", "_POSIX_REATIME_SIGNALS",
"_POSIX_SAVED_IDS", "_POSIX_SEMAPHORES", "_POSIX_SHARED_MEMORY_OBJECTS",
"_POSIX_SYNCHRONIZED_IO", "_POSIX_SYNC_IO", "_POSIX_THREADS",
"_POSIX_THREAD_ATTR_STACKADDR", "_POSIX_THREAD_ATTR_STACKSIZE",
"_POSIX_THREAD_PRIO_INHERIT", "_POSIX_THREAD_PRIO_PROTECT",
"_POSIX_THREAD_PROCESS_SHARED", "_POSIX_THREAD_SAFE_FUNCTIONS",
"_POSIX_THREAD_PRIORITY_SCHEDULING", "_POSIX_TIMERS",
"_POSIX_VDISABLE", "_POSIX_VERSION",
"_exit", "access", "alarm", "chdir", "chown", "close", "ctermid", "cuserid",
"dup2", "dup", "execl", "execle", "execlp", "execv", "execve", "execvp",
"fdatasync", "fork", "fpathconf", "fsync", "ftruncate", "getcwd", "getegid",
"geteuid", "getgid", "getgroups", "getlogin", "getlogin_r", "getpgrp",
"getpid", "getppid", "getuid", "isatty", "link", "lseek", "pathconf",
"pause", "pipe", "read", "rmdir", "setgid", "setgpid", "setsid", "setuid",
"sleep", "sleep", "sysconf", "tcgetpgrp", "tcsetpgrp", "ttyname",
"ttyname_r", "unlink", "write"
};
/* <utime.h>. */
static const char *const utime_syms[] =
{
};
static const char *const utime_maybe[] =
{
"utime"
};
static struct header
{
const char *name;
const char *const *syms;
size_t nsyms;
const char *const *maybe;
size_t nmaybe;
const char *subset;
} headers[] =
{
#define H(n) \
{ #n ".h", n##_syms, sizeof (n##_syms) / sizeof (n##_syms[0]), \
n##_maybe, sizeof (n##_maybe) / sizeof (n##_maybe[0]), NULL }
#define Hc(n, s) \
{ #n ".h", n##_syms, sizeof (n##_syms) / sizeof (n##_syms[0]), \
n##_maybe, sizeof (n##_maybe) / sizeof (n##_maybe[0]), s }
#define Hs(n) \
{ "sys/" #n ".h", n##_syms, sizeof (n##_syms) / sizeof (n##_syms[0]), \
n##_maybe, sizeof (n##_maybe) / sizeof (n##_maybe[0]), NULL }
H(aio),
H(assert),
H(ctype),
H(dirent),
H(errno),
H(fcntl),
H(float),
H(grp),
H(limits),
H(locale),
H(math),
Hc(mqueue, "_POSIX_MESSAGE_PASSING"),
H(pthread),
H(pwd),
H(sched),
H(semaphore),
H(setjmp),
H(signal),
H(stdarg),
H(stddef),
H(stdio),
H(stdlib),
H(string),
Hs(mman),
Hs(stat),
Hs(times),
Hs(types),
Hs(utsname),
Hs(wait),
H(termios),
H(time),
H(unistd),
H(utime)
};
#define NUMBER_OF_HEADERS (sizeof headers / sizeof *headers)
/* Format string to build command to invoke compiler. */
static const char fmt[] = "\
echo \"#include <%s>\" |\
%s -E -dM -D_POSIX_SOURCE %s \
-isystem `%s --print-prog-name=include` - > %s";
static const char testfmt[] = "\
echo \"#include <unistd.h>\n#if !defined %s || %s == -1\n#error not defined\n#endif\n\" |\
%s -E -dM -D_POSIX_SOURCE %s \
-isystem `%s --print-prog-name=include` - 2> /dev/null > %s";
/* The compiler we use (given on the command line). */
const char *CC;
/* The -I parameters for CC to find all headers. */
const char *INC;
static char *xstrndup (const char *, size_t);
static const char **get_null_defines (void);
static int check_header (const struct header *, const char **);
static int xsystem (const char *);
int
main (int argc, char *argv[])
{
int h;
int result = 0;
const char **ignore_list;
CC = argc > 1 ? argv[1] : "gcc";
INC = argc > 2 ? argv[2] : "";
if (system (NULL) == 0)
{
puts ("Sorry, no command processor.");
return EXIT_FAILURE;
}
/* First get list of symbols which are defined by the compiler. */
ignore_list = get_null_defines ();
fputs ("Tested files:\n", stdout);
for (h = 0; h < NUMBER_OF_HEADERS; ++h)
result |= check_header (&headers[h], ignore_list);
remove (macrofile);
/* The test suite should return errors but for now this is not
practical. Give a warning and ask the user to correct the bugs. */
return result;
}
static char *
xstrndup (const char *s, size_t n)
{
size_t len = n;
char *new = malloc (len + 1);
if (new == NULL)
return NULL;
new[len] = '\0';
return memcpy (new, s, len);
}
/* Like system but propagate interrupt and quit signals. */
int
xsystem (const char *cmd)
{
int status;
status = system (cmd);
if (status != -1)
{
if (WIFSIGNALED (status))
{
if (WTERMSIG (status) == SIGINT || WTERMSIG (status) == SIGQUIT)
raise (WTERMSIG (status));
}
else if (WIFEXITED (status))
{
if (WEXITSTATUS (status) == SIGINT + 128
|| WEXITSTATUS (status) == SIGQUIT + 128)
raise (WEXITSTATUS (status) - 128);
}
}
return status;
}
static const char **
get_null_defines (void)
{
char line[BUFSIZ], *command;
char **result = NULL;
size_t result_len = 0;
size_t result_max = 0;
FILE *input;
int first = 1;
int fd = mkstemp (macrofile);
if (fd == -1)
{
printf ("mkstemp failed: %m\n");
exit (1);
}
close (fd);
command = malloc (sizeof fmt + sizeof "/dev/null" + 2 * strlen (CC)
+ strlen (INC) + strlen (macrofile));
if (command == NULL)
{
puts ("No more memory.");
exit (1);
}
sprintf (command, fmt, "/dev/null", CC, INC, CC, macrofile);
if (xsystem (command))
{
puts ("system() returned nonzero");
return NULL;
}
free (command);
input = fopen (macrofile, "r");
if (input == NULL)
{
printf ("Could not read %s: ", macrofile);
perror (NULL);
return NULL;
}
while (fgets (line, sizeof line, input) != NULL)
{
char *start;
if (strlen (line) < 9 || line[7] != ' ')
{ /* "#define A" */
printf ("Malformed input, expected '#define MACRO'\ngot '%s'\n",
line);
continue;
}
if (line[8] == '_')
/* It's a safe identifier. */
continue;
if (result_len == result_max)
{
result_max += 10;
result = realloc (result, result_max * sizeof (char **));
if (result == NULL)
{
puts ("No more memory.");
exit (1);
}
}
start = &line[8];
result[result_len++] = xstrndup (start, strcspn (start, " ("));
if (first)
{
fputs ("The following identifiers will be ignored since the compiler defines them\nby default:\n", stdout);
first = 0;
}
puts (result[result_len - 1]);
}
if (result_len == result_max)
{
result_max += 1;
result = realloc (result, result_max * sizeof (char **));
if (result == NULL)
{
puts ("No more memory.");
exit (1);
}
}
result[result_len] = NULL;
fclose (input);
return (const char **) result;
}
static int
check_header (const struct header *header, const char **except)
{
char line[BUFSIZ], command[sizeof fmt + strlen (header->name)
+ 2 * strlen (CC)
+ strlen (INC) + strlen (macrofile)];
FILE *input;
int result = 0;
int found[header->nsyms];
int i;
memset (found, '\0', header->nsyms * sizeof (int));
printf ("=== %s ===\n", header->name);
sprintf (command, fmt, header->name, CC, INC, CC, macrofile);
/* First see whether this subset is supported at all. */
if (header->subset != NULL)
{
sprintf (line, testfmt, header->subset, header->subset, CC, INC, CC,
macrofile);
if (xsystem (line))
{
printf ("!! not available\n");
return 0;
}
}
if (xsystem (command))
{
puts ("system() returned nonzero");
result = 1;
}
input = fopen (macrofile, "r");
if (input == NULL)
{
printf ("Could not read %s: ", macrofile);
perror (NULL);
return 1;
}
while (fgets (line, sizeof line, input) != NULL)
{
const char **ignore;
if (strlen (line) < 9 || line[7] != ' ')
{ /* "#define A" */
printf ("Malformed input, expected '#define MACRO'\ngot '%s'\n",
line);
result = 1;
continue;
}
/* Find next char after the macro identifier; this can be either
a space or an open parenthesis. */
line[8 + strcspn (&line[8], " (")] = '\0';
/* Now check whether it's one of the required macros. */
for (i = 0; i < header->nsyms; ++i)
if (!strcmp (&line[8], header->syms[i]))
break;
if (i < header->nsyms)
{
found[i] = 1;
continue;
}
/* Symbols starting with "_" are ok. */
if (line[8] == '_')
continue;
/* Maybe one of the symbols which are always defined. */
for (ignore = except; *ignore != NULL; ++ignore)
if (! strcmp (&line[8], *ignore))
break;
if (*ignore != NULL)
continue;
/* Otherwise the symbol better should match one of the following. */
for (i = 0; i < header->nmaybe; ++i)
if (fnmatch (header->maybe[i], &line[8], 0) == 0)
break;
if (i < header->nmaybe)
continue;
printf ("* invalid macro `%s'\n", &line[8]);
result |= 1;
}
fclose (input);
for (i = 0; i < header->nsyms; ++i)
if (found[i] == 0)
printf ("** macro `%s' not defined\n", header->syms[i]);
return result;
}