/*- * Copyright (c) 2009 Joseph Koshy * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $Id: _elftc.h,v 1.2 2021/09/02 21:12:09 deraadt Exp $ */ /** ** Miscellaneous definitions needed by multiple components. **/ #ifndef _ELFTC_H #define _ELFTC_H #ifndef NULL #define NULL ((void *) 0) #endif #ifndef offsetof #define offsetof(T, M) ((int) &((T*) 0) -> M) #endif /* --QUEUE-MACROS-- [[ */ /* * Supply macros missing from */ /* * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef LIST_FOREACH_SAFE #define LIST_FOREACH_SAFE(var, head, field, tvar) \ for ((var) = LIST_FIRST((head)); \ (var) && ((tvar) = LIST_NEXT((var), field), 1); \ (var) = (tvar)) #endif #ifndef SLIST_FOREACH_SAFE #define SLIST_FOREACH_SAFE(var, head, field, tvar) \ for ((var) = SLIST_FIRST((head)); \ (var) && ((tvar) = SLIST_NEXT((var), field), 1); \ (var) = (tvar)) #endif #ifndef STAILQ_CONCAT #define STAILQ_CONCAT(head1, head2) do { \ if (!STAILQ_EMPTY((head2))) { \ *(head1)->stqh_last = (head2)->stqh_first; \ (head1)->stqh_last = (head2)->stqh_last; \ STAILQ_INIT((head2)); \ } \ } while (/*CONSTCOND*/0) #endif #ifndef STAILQ_EMPTY #define STAILQ_EMPTY(head) ((head)->stqh_first == NULL) #endif #ifndef STAILQ_ENTRY #define STAILQ_ENTRY(type) \ struct { \ struct type *stqe_next; /* next element */ \ } #endif #ifndef STAILQ_FIRST #define STAILQ_FIRST(head) ((head)->stqh_first) #endif #ifndef STAILQ_HEAD #define STAILQ_HEAD(name, type) \ struct name { \ struct type *stqh_first; /* first element */ \ struct type **stqh_last; /* addr of last next element */ \ } #endif #ifndef STAILQ_HEAD_INITIALIZER #define STAILQ_HEAD_INITIALIZER(head) \ { NULL, &(head).stqh_first } #endif #ifndef STAILQ_FOREACH #define STAILQ_FOREACH(var, head, field) \ for ((var) = ((head)->stqh_first); \ (var); \ (var) = ((var)->field.stqe_next)) #endif #ifndef STAILQ_FOREACH_SAFE #define STAILQ_FOREACH_SAFE(var, head, field, tvar) \ for ((var) = STAILQ_FIRST((head)); \ (var) && ((tvar) = STAILQ_NEXT((var), field), 1); \ (var) = (tvar)) #endif #ifndef STAILQ_INIT #define STAILQ_INIT(head) do { \ (head)->stqh_first = NULL; \ (head)->stqh_last = &(head)->stqh_first; \ } while (/*CONSTCOND*/0) #endif #ifndef STAILQ_INSERT_HEAD #define STAILQ_INSERT_HEAD(head, elm, field) do { \ if (((elm)->field.stqe_next = (head)->stqh_first) == NULL) \ (head)->stqh_last = &(elm)->field.stqe_next; \ (head)->stqh_first = (elm); \ } while (/*CONSTCOND*/0) #endif #ifndef STAILQ_INSERT_TAIL #define STAILQ_INSERT_TAIL(head, elm, field) do { \ (elm)->field.stqe_next = NULL; \ *(head)->stqh_last = (elm); \ (head)->stqh_last = &(elm)->field.stqe_next; \ } while (/*CONSTCOND*/0) #endif #ifndef STAILQ_INSERT_AFTER #define STAILQ_INSERT_AFTER(head, listelm, elm, field) do { \ if (((elm)->field.stqe_next = (listelm)->field.stqe_next) == NULL)\ (head)->stqh_last = &(elm)->field.stqe_next; \ (listelm)->field.stqe_next = (elm); \ } while (/*CONSTCOND*/0) #endif #ifndef STAILQ_LAST #define STAILQ_LAST(head, type, field) \ (STAILQ_EMPTY((head)) ? \ NULL : ((struct type *)(void *) \ ((char *)((head)->stqh_last) - offsetof(struct type, field)))) #endif #ifndef STAILQ_NEXT #define STAILQ_NEXT(elm, field) ((elm)->field.stqe_next) #endif #ifndef STAILQ_REMOVE #define STAILQ_REMOVE(head, elm, type, field) do { \ if ((head)->stqh_first == (elm)) { \ STAILQ_REMOVE_HEAD((head), field); \ } else { \ struct type *curelm = (head)->stqh_first; \ while (curelm->field.stqe_next != (elm)) \ curelm = curelm->field.stqe_next; \ if ((curelm->field.stqe_next = \ curelm->field.stqe_next->field.stqe_next) == NULL) \ (head)->stqh_last = &(curelm)->field.stqe_next; \ } \ } while (/*CONSTCOND*/0) #endif #ifndef STAILQ_REMOVE_HEAD #define STAILQ_REMOVE_HEAD(head, field) do { \ if (((head)->stqh_first = (head)->stqh_first->field.stqe_next) == \ NULL) \ (head)->stqh_last = &(head)->stqh_first; \ } while (/*CONSTCOND*/0) #endif /* * The STAILQ_SORT macro is adapted from Simon Tatham's O(n*log(n)) * mergesort algorithm. */ #ifndef STAILQ_SORT #define STAILQ_SORT(head, type, field, cmp) do { \ STAILQ_HEAD(, type) _la, _lb; \ struct type *_p, *_q, *_e; \ int _i, _sz, _nmerges, _psz, _qsz; \ \ _sz = 1; \ do { \ _nmerges = 0; \ STAILQ_INIT(&_lb); \ while (!STAILQ_EMPTY((head))) { \ _nmerges++; \ STAILQ_INIT(&_la); \ _psz = 0; \ for (_i = 0; _i < _sz && !STAILQ_EMPTY((head)); \ _i++) { \ _e = STAILQ_FIRST((head)); \ if (_e == NULL) \ break; \ _psz++; \ STAILQ_REMOVE_HEAD((head), field); \ STAILQ_INSERT_TAIL(&_la, _e, field); \ } \ _p = STAILQ_FIRST(&_la); \ _qsz = _sz; \ _q = STAILQ_FIRST((head)); \ while (_psz > 0 || (_qsz > 0 && _q != NULL)) { \ if (_psz == 0) { \ _e = _q; \ _q = STAILQ_NEXT(_q, field); \ STAILQ_REMOVE_HEAD((head), \ field); \ _qsz--; \ } else if (_qsz == 0 || _q == NULL) { \ _e = _p; \ _p = STAILQ_NEXT(_p, field); \ STAILQ_REMOVE_HEAD(&_la, field);\ _psz--; \ } else if (cmp(_p, _q) <= 0) { \ _e = _p; \ _p = STAILQ_NEXT(_p, field); \ STAILQ_REMOVE_HEAD(&_la, field);\ _psz--; \ } else { \ _e = _q; \ _q = STAILQ_NEXT(_q, field); \ STAILQ_REMOVE_HEAD((head), \ field); \ _qsz--; \ } \ STAILQ_INSERT_TAIL(&_lb, _e, field); \ } \ } \ (head)->stqh_first = _lb.stqh_first; \ (head)->stqh_last = _lb.stqh_last; \ _sz *= 2; \ } while (_nmerges > 1); \ } while (/*CONSTCOND*/0) #endif #ifndef TAILQ_FOREACH_SAFE #define TAILQ_FOREACH_SAFE(var, head, field, tvar) \ for ((var) = TAILQ_FIRST((head)); \ (var) && ((tvar) = TAILQ_NEXT((var), field), 1); \ (var) = (tvar)) #endif /* ]] --QUEUE-MACROS-- */ /* * VCS Ids. */ #ifndef ELFTC_VCSID #if defined(__DragonFly__) #define ELFTC_VCSID(ID) __RCSID(ID) #endif #if defined(__FreeBSD__) #define ELFTC_VCSID(ID) __FBSDID(ID) #endif #if defined(__APPLE__) || defined(__GLIBC__) || defined(__GNU__) || \ defined(__linux__) #if defined(__GNUC__) #define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"") #else #define ELFTC_VCSID(ID) /**/ #endif #endif #if defined(__minix) #if defined(__GNUC__) #define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"") #else #define ELFTC_VCSID(ID) /**/ #endif /* __GNU__ */ #endif #if defined(__NetBSD__) #define ELFTC_VCSID(ID) __RCSID(ID) #endif #if defined(__OpenBSD__) #if defined(__GNUC__) #define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"") #else #define ELFTC_VCSID(ID) /**/ #endif /* __GNUC__ */ #endif #endif /* ELFTC_VCSID */ /* * Provide an equivalent for getprogname(3). */ #ifndef ELFTC_GETPROGNAME #if defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__) || \ defined(__minix) || defined(__NetBSD__) #include #define ELFTC_GETPROGNAME() getprogname() #endif /* __DragonFly__ || __FreeBSD__ || __minix || __NetBSD__ */ #if defined(__GLIBC__) || defined(__linux__) #ifndef _GNU_SOURCE /* * GLIBC based systems have a global 'char *' pointer referencing * the executable's name. */ extern const char *program_invocation_short_name; #endif /* !_GNU_SOURCE */ #define ELFTC_GETPROGNAME() program_invocation_short_name #endif /* __GLIBC__ || __linux__ */ #if defined(__OpenBSD__) extern const char *__progname; #define ELFTC_GETPROGNAME() __progname #endif /* __OpenBSD__ */ #endif /* ELFTC_GETPROGNAME */ /** ** Per-OS configuration. **/ #if defined(__APPLE__) #include #define htobe32(x) OSSwapHostToBigInt32(x) #define roundup2 roundup #define ELFTC_BYTE_ORDER _BYTE_ORDER #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN #define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN #define ELFTC_HAVE_MMAP 1 #define ELFTC_HAVE_STRMODE 1 #define ELFTC_NEED_BYTEORDER_EXTENSIONS 1 #endif /* __APPLE__ */ #if defined(__DragonFly__) #include #include #define ELFTC_BYTE_ORDER _BYTE_ORDER #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN #define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN #define ELFTC_HAVE_MMAP 1 #endif #if defined(__GLIBC__) || defined(__linux__) #include #define ELFTC_BYTE_ORDER __BYTE_ORDER #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN __LITTLE_ENDIAN #define ELFTC_BYTE_ORDER_BIG_ENDIAN __BIG_ENDIAN #define ELFTC_HAVE_MMAP 1 /* * Debian GNU/Linux and Debian GNU/kFreeBSD do not have strmode(3). */ #define ELFTC_HAVE_STRMODE 0 /* Whether we need to supply {be,le}32dec. */ #define ELFTC_NEED_BYTEORDER_EXTENSIONS 1 #define roundup2 roundup #endif /* __GLIBC__ || __linux__ */ #if defined(__FreeBSD__) #include #include #define ELFTC_BYTE_ORDER _BYTE_ORDER #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN #define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN #define ELFTC_HAVE_MMAP 1 #define ELFTC_HAVE_STRMODE 1 #if __FreeBSD_version <= 900000 #define ELFTC_BROKEN_YY_NO_INPUT 1 #endif #endif /* __FreeBSD__ */ #if defined(__minix) #define ELFTC_HAVE_MMAP 0 #endif /* __minix */ #if defined(__NetBSD__) #include #include #define ELFTC_BYTE_ORDER _BYTE_ORDER #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN #define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN #define ELFTC_HAVE_MMAP 1 #define ELFTC_HAVE_STRMODE 1 #if __NetBSD_Version__ <= 599002100 /* from src/doc/CHANGES: flex(1): Import flex-2.5.35 [christos 20091025] */ /* and 5.99.21 was from Wed Oct 21 21:28:36 2009 UTC */ # define ELFTC_BROKEN_YY_NO_INPUT 1 #endif #endif /* __NetBSD __ */ #if defined(__OpenBSD__) #include /* roundup roundup2 */ #include #define ELFTC_BYTE_ORDER _BYTE_ORDER #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN #define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN #define ELFTC_HAVE_MMAP 1 #define ELFTC_HAVE_STRMODE 1 #define ELFTC_NEED_BYTEORDER_EXTENSIONS 1 #define roundup2 roundup #endif /* __OpenBSD__ */ #endif /* _ELFTC_H */