/* Copyright (C) 1998-2019 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 <http://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; }