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compat_defs.h revision 1.51
      1 /*	$NetBSD: compat_defs.h,v 1.51 2006/02/11 00:56:08 wiz Exp $	*/
      2 
      3 #ifndef	__NETBSD_COMPAT_DEFS_H__
      4 #define	__NETBSD_COMPAT_DEFS_H__
      5 
      6 /* Work around some complete brain damage. */
      7 
      8 /*
      9  * Linux: <features.h> turns on _POSIX_SOURCE by default, even though the
     10  * program (not the OS) should do that.  Preload <features.h> to keep any
     11  * of this crap from being pulled in, and undefine _POSIX_SOURCE.
     12  */
     13 
     14 #if defined(__linux__) && HAVE_FEATURES_H
     15 #include <features.h>
     16 #endif
     17 
     18 /* So _NETBSD_SOURCE doesn't end up defined. Define enough to pull in standard
     19    defs. Other platforms may need similiar defines. */
     20 #ifdef __NetBSD__
     21 #define	_ISOC99_SOURCE
     22 #define _POSIX_SOURCE	1
     23 #define _POSIX_C_SOURCE	200112L
     24 #define _XOPEN_SOURCE 600
     25 #else
     26 #undef _POSIX_SOURCE
     27 #undef _POSIX_C_SOURCE
     28 #endif
     29 
     30 /* System headers needed for (re)definitions below. */
     31 
     32 #include <sys/types.h>
     33 #include <sys/mman.h>
     34 #include <sys/param.h>
     35 /* time.h needs to be pulled in first at least on netbsd w/o _NETBSD_SOURCE */
     36 #include <sys/time.h>
     37 #include <sys/stat.h>
     38 #include <errno.h>
     39 #include <fcntl.h>
     40 #include <grp.h>
     41 #include <limits.h>
     42 #include <paths.h>
     43 #include <stdarg.h>
     44 #include <stdio.h>
     45 #include <stdlib.h>
     46 #include <string.h>
     47 
     48 #if HAVE_SYS_CDEFS_H
     49 #include <sys/cdefs.h>
     50 #endif
     51 #if HAVE_SYS_SYSLIMITS_H
     52 #include <sys/syslimits.h>
     53 #endif
     54 #if HAVE_SYS_SYSMACROS_H
     55 /* major(), minor() on SVR4 */
     56 #include <sys/sysmacros.h>
     57 #endif
     58 #if HAVE_INTTYPES_H
     59 #include <inttypes.h>
     60 #endif
     61 #if HAVE_STDDEF_H
     62 #include <stddef.h>
     63 #endif
     64 
     65 #ifdef _NETBSD_SOURCE
     66 #error _NETBSD_SOURCE is *not* to be defined.
     67 #endif
     68 
     69 /* Need this since we can't depend on NetBSD's version to be around */
     70 #ifdef __UNCONST
     71 #undef __UNCONST
     72 #endif
     73 #define __UNCONST(a)   ((void *)(unsigned long)(const void *)(a))
     74 
     75 /* We don't include <pwd.h> here, so that "compat_pwd.h" works. */
     76 struct passwd;
     77 
     78 /* Assume an ANSI compiler for the host. */
     79 
     80 #undef __P
     81 #define __P(x) x
     82 
     83 #ifndef __BEGIN_DECLS
     84 #define __BEGIN_DECLS
     85 #endif
     86 #ifndef __END_DECLS
     87 #define __END_DECLS
     88 #endif
     89 
     90 /* Some things usually in BSD <sys/cdefs.h>. */
     91 
     92 #ifndef __CONCAT
     93 #define	__CONCAT(x,y)	x ## y
     94 #endif
     95 #if !defined(__attribute__) && !defined(__GNUC__)
     96 #define __attribute__(x)
     97 #endif
     98 #if !defined(__packed)
     99 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
    100 #define __packed	__attribute__((__packed__))
    101 #else
    102 #define	__packed	error: no __packed for this compiler
    103 #endif
    104 #endif /* !__packed */
    105 #ifndef __RENAME
    106 #define __RENAME(x)
    107 #endif
    108 #undef __aconst
    109 #define __aconst
    110 #undef __dead
    111 #define __dead
    112 #undef __restrict
    113 #define __restrict
    114 
    115 /* Dirent support. */
    116 
    117 #if HAVE_DIRENT_H
    118 # if defined(__linux__) && defined(__USE_BSD)
    119 #  undef __USE_BSD
    120 #  include <dirent.h>
    121 #  define __USE_BSD 1
    122 #  undef d_fileno
    123 # else
    124 #  include <dirent.h>
    125 # endif
    126 # define NAMLEN(dirent) (strlen((dirent)->d_name))
    127 #else
    128 # define dirent direct
    129 # define NAMLEN(dirent) ((dirent)->d_namlen)
    130 # if HAVE_SYS_NDIR_H
    131 #  include <sys/ndir.h>
    132 # endif
    133 # if HAVE_SYS_DIR_H
    134 #  include <sys/dir.h>
    135 # endif
    136 # if HAVE_NDIR_H
    137 #  include <ndir.h>
    138 # endif
    139 #endif
    140 
    141 /* Type substitutes. */
    142 
    143 #if !HAVE_ID_T
    144 typedef unsigned long id_t;
    145 #endif
    146 
    147 #if !HAVE_SOCKLEN_T
    148 typedef int socklen_t;
    149 #endif
    150 
    151 #if !HAVE_U_LONG
    152 typedef unsigned long u_long;
    153 #endif
    154 
    155 #if !HAVE_U_CHAR
    156 typedef unsigned char u_char;
    157 #endif
    158 
    159 #if !HAVE_U_INT
    160 typedef unsigned int u_int;
    161 #endif
    162 
    163 #if !HAVE_U_SHORT
    164 typedef unsigned short u_short;
    165 #endif
    166 
    167 /* Prototypes for replacement functions. */
    168 
    169 #if !HAVE_ATOLL
    170 long long int atoll(const char *);
    171 #endif
    172 
    173 #if !HAVE_ASPRINTF
    174 int asprintf(char **, const char *, ...);
    175 #endif
    176 
    177 #if !HAVE_ASNPRINTF
    178 int asnprintf(char **, size_t, const char *, ...);
    179 #endif
    180 
    181 #if !HAVE_BASENAME
    182 char *basename(char *);
    183 #endif
    184 
    185 #if !HAVE_DECL_OPTIND
    186 int getopt(int, char *const *, const char *);
    187 extern char *optarg;
    188 extern int optind, opterr, optopt;
    189 #endif
    190 
    191 #if !HAVE_DIRNAME
    192 char *dirname(char *);
    193 #endif
    194 
    195 #if !HAVE_DIRFD
    196 #if HAVE_DIR_DD_FD
    197 #define dirfd(dirp) ((dirp)->dd_fd)
    198 #else
    199 /*XXX: Very hacky but no other way to bring this into scope w/o defining
    200   _NETBSD_SOURCE which we're avoiding. */
    201 #ifdef __NetBSD__
    202 struct _dirdesc {
    203         int     dd_fd;          /* file descriptor associated with directory */
    204 	long    dd_loc;         /* offset in current buffer */
    205 	long    dd_size;        /* amount of data returned by getdents */
    206 	char    *dd_buf;        /* data buffer */
    207 	int     dd_len;         /* size of data buffer */
    208 	off_t   dd_seek;        /* magic cookie returned by getdents */
    209 	long    dd_rewind;      /* magic cookie for rewinding */
    210 	int     dd_flags;       /* flags for readdir */
    211 	void    *dd_lock;       /* lock for concurrent access */
    212 };
    213 #define dirfd(dirp)     (((struct _dirdesc *)dirp)->dd_fd)
    214 #else
    215 #error cannot figure out how to turn a DIR * into a fd
    216 #endif
    217 #endif
    218 #endif
    219 
    220 #if !HAVE_ERR_H
    221 void err(int, const char *, ...);
    222 void errx(int, const char *, ...);
    223 void warn(const char *, ...);
    224 void warnx(const char *, ...);
    225 #endif
    226 
    227 #if !HAVE_FGETLN || defined(__NetBSD__)
    228 char *fgetln(FILE *, size_t *);
    229 #endif
    230 
    231 #if !HAVE_FLOCK
    232 # define LOCK_SH		0x01
    233 # define LOCK_EX		0x02
    234 # define LOCK_NB		0x04
    235 # define LOCK_UN		0x08
    236 int flock(int, int);
    237 #endif
    238 
    239 #if !HAVE_FPARSELN || defined(__NetBSD__)
    240 # define FPARSELN_UNESCESC	0x01
    241 # define FPARSELN_UNESCCONT	0x02
    242 # define FPARSELN_UNESCCOMM	0x04
    243 # define FPARSELN_UNESCREST	0x08
    244 # define FPARSELN_UNESCALL	0x0f
    245 char *fparseln(FILE *, size_t *, size_t *, const char [3], int);
    246 #endif
    247 
    248 #if !HAVE_ISSETUGID
    249 int issetugid(void);
    250 #endif
    251 
    252 #if !HAVE_ISBLANK && !defined(isblank)
    253 #define isblank(x) ((x) == ' ' || (x) == '\t')
    254 #endif
    255 
    256 #if !HAVE_LCHFLAGS
    257 int lchflags(const char *, u_long);
    258 #endif
    259 
    260 #if !HAVE_LCHMOD
    261 int lchmod(const char *, mode_t);
    262 #endif
    263 
    264 #if !HAVE_LCHOWN
    265 int lchown(const char *, uid_t, gid_t);
    266 #endif
    267 
    268 #define __nbcompat_bswap16(x)	((((x) << 8) & 0xff00) | (((x) >> 8) & 0x00ff))
    269 
    270 #define __nbcompat_bswap32(x)	((((x) << 24) & 0xff000000) | \
    271 				 (((x) <<  8) & 0x00ff0000) | \
    272 				 (((x) >>  8) & 0x0000ff00) | \
    273 				 (((x) >> 24) & 0x000000ff))
    274 
    275 #define __nbcompat_bswap64(x)	(((u_int64_t)bswap32((x)) << 32) | \
    276 				 ((u_int64_t)bswap32((x) >> 32)))
    277 
    278 #if ! HAVE_DECL_BSWAP16
    279 #ifdef bswap16
    280 #undef bswap16
    281 #endif
    282 #define bswap16(x)	__nbcompat_bswap16(x)
    283 #endif
    284 #if ! HAVE_DECL_BSWAP32
    285 #ifdef bswap32
    286 #undef bswap32
    287 #endif
    288 #define bswap32(x)	__nbcompat_bswap32(x)
    289 #endif
    290 #if ! HAVE_DECL_BSWAP64
    291 #ifdef bswap64
    292 #undef bswap64
    293 #endif
    294 #define bswap64(x)	__nbcompat_bswap64(x)
    295 #endif
    296 
    297 #if !HAVE_MKSTEMP
    298 int mkstemp(char *);
    299 #endif
    300 
    301 #if !HAVE_MKDTEMP
    302 char *mkdtemp(char *);
    303 #endif
    304 
    305 #if !HAVE_MKSTEMP || !HAVE_MKDTEMP
    306 /* This is a prototype for the internal function. */
    307 int gettemp(char *, int *, int);
    308 #endif
    309 
    310 #if !HAVE_PREAD
    311 ssize_t pread(int, void *, size_t, off_t);
    312 #endif
    313 
    314 #if !HAVE_HEAPSORT
    315 int heapsort (void *, size_t, size_t, int (*)(const void *, const void *));
    316 #endif
    317 /* Make them use our version */
    318 #  define heapsort __nbcompat_heapsort
    319 
    320 #if !HAVE_PWCACHE_USERDB
    321 int uid_from_user(const char *, uid_t *);
    322 int pwcache_userdb(int (*)(int), void (*)(void),
    323 		struct passwd * (*)(const char *), struct passwd * (*)(uid_t));
    324 int gid_from_group(const char *, gid_t *);
    325 int pwcache_groupdb(int (*)(int), void (*)(void),
    326 		struct group * (*)(const char *), struct group * (*)(gid_t));
    327 #endif
    328 /* Make them use our version */
    329 #  define user_from_uid __nbcompat_user_from_uid
    330 /* Make them use our version */
    331 #  define group_from_gid __nbcompat_group_from_gid
    332 
    333 #if !HAVE_PWRITE
    334 ssize_t pwrite(int, const void *, size_t, off_t);
    335 #endif
    336 
    337 #if !HAVE_SETENV
    338 int setenv(const char *, const char *, int);
    339 #endif
    340 
    341 #if !HAVE_DECL_SETGROUPENT
    342 int setgroupent(int);
    343 #endif
    344 
    345 #if !HAVE_DECL_SETPASSENT
    346 int setpassent(int);
    347 #endif
    348 
    349 #if !HAVE_SETPROGNAME || defined(__NetBSD__)
    350 const char *getprogname(void);
    351 void setprogname(const char *);
    352 #endif
    353 
    354 #if !HAVE_SNPRINTF
    355 int snprintf(char *, size_t, const char *, ...);
    356 #endif
    357 
    358 #if !HAVE_STRLCAT
    359 size_t strlcat(char *, const char *, size_t);
    360 #endif
    361 
    362 #if !HAVE_STRLCPY
    363 size_t strlcpy(char *, const char *, size_t);
    364 #endif
    365 
    366 #if !HAVE_STRSEP || defined(__NetBSD__)
    367 char *strsep(char **, const char *);
    368 #endif
    369 
    370 #if !HAVE_DECL_STRSUFTOLL
    371 long long strsuftoll(const char *, const char *, long long, long long);
    372 long long strsuftollx(const char *, const char *,
    373 			long long, long long, char *, size_t);
    374 #endif
    375 
    376 #if !HAVE_STRTOLL
    377 long long strtoll(const char *, char **, int);
    378 #endif
    379 
    380 #if !HAVE_USER_FROM_UID
    381 const char *user_from_uid(uid_t, int);
    382 #endif
    383 
    384 #if !HAVE_GROUP_FROM_GID
    385 const char *group_from_gid(gid_t, int);
    386 #endif
    387 
    388 #if !HAVE_VASPRINTF
    389 int vasprintf(char **, const char *, va_list);
    390 #endif
    391 
    392 #if !HAVE_VASNPRINTF
    393 int vasnprintf(char **, size_t, const char *, va_list);
    394 #endif
    395 
    396 #if !HAVE_VSNPRINTF
    397 int vsnprintf(char *, size_t, const char *, va_list);
    398 #endif
    399 
    400 /*
    401  * getmode() and setmode() are always defined, as these function names
    402  * exist but with very different meanings on other OS's.  The compat
    403  * versions here simply accept an octal mode number; the "u+x,g-w" type
    404  * of syntax is not accepted.
    405  */
    406 
    407 #define getmode __nbcompat_getmode
    408 #define setmode __nbcompat_setmode
    409 
    410 mode_t getmode(const void *, mode_t);
    411 void *setmode(const char *);
    412 
    413 /* Eliminate assertions embedded in binaries. */
    414 
    415 #undef _DIAGASSERT
    416 #define _DIAGASSERT(x)
    417 
    418 /* Various sources use this */
    419 #undef	__RCSID
    420 #define	__RCSID(x)
    421 #undef	__SCCSID
    422 #define	__SCCSID(x)
    423 #undef	__COPYRIGHT
    424 #define	__COPYRIGHT(x)
    425 #undef	__KERNEL_RCSID
    426 #define	__KERNEL_RCSID(x,y)
    427 
    428 /* Heimdal expects this one. */
    429 
    430 #undef RCSID
    431 #define RCSID(x)
    432 
    433 /* Some definitions not available on all systems. */
    434 
    435 /* <errno.h> */
    436 
    437 #ifndef EFTYPE
    438 #define EFTYPE EIO
    439 #endif
    440 
    441 /* <fcntl.h> */
    442 
    443 #ifndef O_EXLOCK
    444 #define O_EXLOCK 0
    445 #endif
    446 #ifndef O_SHLOCK
    447 #define O_SHLOCK 0
    448 #endif
    449 
    450 /* <limits.h> */
    451 
    452 #ifndef UID_MAX
    453 #define UID_MAX 32767
    454 #endif
    455 #ifndef GID_MAX
    456 #define GID_MAX UID_MAX
    457 #endif
    458 
    459 #ifndef UQUAD_MAX
    460 #define UQUAD_MAX ((u_quad_t)-1)
    461 #endif
    462 #ifndef QUAD_MAX
    463 #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1))
    464 #endif
    465 #ifndef QUAD_MIN
    466 #define QUAD_MIN ((quad_t)(~QUAD_MAX))
    467 #endif
    468 #ifndef ULLONG_MAX
    469 #define ULLONG_MAX ((unsigned long long)-1)
    470 #endif
    471 #ifndef LLONG_MAX
    472 #define LLONG_MAX ((long long)(ULLONG_MAX >> 1))
    473 #endif
    474 #ifndef LLONG_MIN
    475 #define LLONG_MIN ((long long)(~LLONG_MAX))
    476 #endif
    477 
    478 /* <paths.h> */
    479 
    480 #ifndef _PATH_BSHELL
    481 #define _PATH_BSHELL PATH_BSHELL
    482 #endif
    483 #ifndef _PATH_DEFPATH
    484 #define _PATH_DEFPATH "/usr/bin:/bin:/usr/local/bin"
    485 #endif
    486 #ifndef _PATH_DEV
    487 #define _PATH_DEV "/dev/"
    488 #endif
    489 #ifndef _PATH_DEVNULL
    490 #define _PATH_DEVNULL _PATH_DEV "null"
    491 #endif
    492 #ifndef _PATH_TMP
    493 #define _PATH_TMP "/tmp/"
    494 #endif
    495 #ifndef _PATH_DEFTAPE
    496 #define _PATH_DEFTAPE "/dev/nrst0"
    497 #endif
    498 #ifndef _PATH_VI
    499 #define _PATH_VI "/usr/bin/vi"
    500 #endif
    501 
    502 /* <stdarg.h> */
    503 
    504 #ifndef _BSD_VA_LIST_
    505 #define _BSD_VA_LIST_ va_list
    506 #endif
    507 
    508 /* <stdint.h> */
    509 
    510 #if !defined(SIZE_MAX) && defined(SIZE_T_MAX)
    511 #define SIZE_MAX SIZE_T_MAX
    512 #endif
    513 
    514 #ifndef UINT8_MAX
    515 #define UINT8_MAX 0xffU
    516 #endif
    517 
    518 #ifndef UINT16_MAX
    519 #define UINT16_MAX 0xffffU
    520 #endif
    521 
    522 #ifndef UINT32_MAX
    523 #define UINT32_MAX 0xffffffffU
    524 #endif
    525 
    526 /* <stdlib.h> */
    527 
    528 #ifndef __GNUC__
    529 # if HAVE_ALLOCA_H
    530 #  include <alloca.h>
    531 # else
    532 #  ifndef alloca /* predefined by HP cc +Olibcalls */
    533 char *alloca ();
    534 #  endif
    535 # endif
    536 #endif
    537 
    538 /* avoid prototype conflicts with host */
    539 #define cgetcap __nbcompat_cgetcap
    540 #define cgetclose __nbcompat_cgetclose
    541 #define cgetent __nbcompat_cgetent
    542 #define cgetfirst __nbcompat_cgetfirst
    543 #define cgetmatch __nbcompat_cgetmatch
    544 #define cgetnext __nbcompat_cgetnext
    545 #define cgetnum __nbcompat_cgetnum
    546 #define cgetset __nbcompat_cgetset
    547 #define cgetstr __nbcompat_cgetstr
    548 #define cgetustr __nbcompat_cgetustr
    549 
    550 char	*cgetcap(char *, const char *, int);
    551 int	 cgetclose(void);
    552 int	 cgetent(char **, const char * const *, const char *);
    553 int	 cgetfirst(char **, const char * const *);
    554 int	 cgetmatch(const char *, const char *);
    555 int	 cgetnext(char **, const char * const *);
    556 int	 cgetnum(char *, const char *, long *);
    557 int	 cgetset(const char *);
    558 int	 cgetstr(char *, const char *, char **);
    559 int	 cgetustr(char *, const char *, char **);
    560 
    561 /* <sys/endian.h> */
    562 
    563 #if WORDS_BIGENDIAN
    564 #if !HAVE_DECL_HTOBE16
    565 #define htobe16(x)	(x)
    566 #endif
    567 #if !HAVE_DECL_HTOBE32
    568 #define htobe32(x)	(x)
    569 #endif
    570 #if !HAVE_DECL_HTOBE64
    571 #define htobe64(x)	(x)
    572 #endif
    573 #if !HAVE_DECL_HTOLE16
    574 #define htole16(x)	bswap16((u_int16_t)(x))
    575 #endif
    576 #if !HAVE_DECL_HTOLE32
    577 #define htole32(x)	bswap32((u_int32_t)(x))
    578 #endif
    579 #if !HAVE_DECL_HTOLE64
    580 #define htole64(x)	bswap64((u_int64_t)(x))
    581 #endif
    582 #else
    583 #if !HAVE_DECL_HTOBE16
    584 #define htobe16(x)	bswap16((u_int16_t)(x))
    585 #endif
    586 #if !HAVE_DECL_HTOBE32
    587 #define htobe32(x)	bswap32((u_int32_t)(x))
    588 #endif
    589 #if !HAVE_DECL_HTOBE64
    590 #define htobe64(x)	bswap64((u_int64_t)(x))
    591 #endif
    592 #if !HAVE_DECL_HTOLE16
    593 #define htole16(x)	(x)
    594 #endif
    595 #if !HAVE_DECL_HTOLE32
    596 #define htole32(x)	(x)
    597 #endif
    598 #if !HAVE_DECL_HTOLE64
    599 #define htole64(x)	(x)
    600 #endif
    601 #endif
    602 #if !HAVE_DECL_BE16TOH
    603 #define be16toh(x)	htobe16(x)
    604 #endif
    605 #if !HAVE_DECL_BE32TOH
    606 #define be32toh(x)	htobe32(x)
    607 #endif
    608 #if !HAVE_DECL_BE64TOH
    609 #define be64toh(x)	htobe64(x)
    610 #endif
    611 #if !HAVE_DECL_LE16TOH
    612 #define le16toh(x)	htole16(x)
    613 #endif
    614 #if !HAVE_DECL_LE32TOH
    615 #define le32toh(x)	htole32(x)
    616 #endif
    617 #if !HAVE_DECL_LE64TOH
    618 #define le64toh(x)	htole64(x)
    619 #endif
    620 
    621 /* <sys/mman.h> */
    622 
    623 #ifndef MAP_FILE
    624 #define MAP_FILE 0
    625 #endif
    626 
    627 /* HP-UX has MAP_ANONYMOUS but not MAP_ANON */
    628 #ifndef MAP_ANON
    629 #ifdef MAP_ANONYMOUS
    630 #define MAP_ANON MAP_ANONYMOUS
    631 #endif
    632 #endif
    633 
    634 /* <sys/param.h> */
    635 
    636 #undef BIG_ENDIAN
    637 #undef LITTLE_ENDIAN
    638 #define BIG_ENDIAN 4321
    639 #define LITTLE_ENDIAN 1234
    640 
    641 #undef BYTE_ORDER
    642 #if WORDS_BIGENDIAN
    643 #define BYTE_ORDER BIG_ENDIAN
    644 #else
    645 #define BYTE_ORDER LITTLE_ENDIAN
    646 #endif
    647 
    648 #ifndef DEV_BSIZE
    649 #define DEV_BSIZE (1 << 9)
    650 #endif
    651 
    652 #undef MIN
    653 #undef MAX
    654 #define MIN(a,b) ((a) < (b) ? (a) : (b))
    655 #define MAX(a,b) ((a) > (b) ? (a) : (b))
    656 
    657 #ifndef MAXBSIZE
    658 #define MAXBSIZE (64 * 1024)
    659 #endif
    660 #ifndef MAXFRAG
    661 #define MAXFRAG 8
    662 #endif
    663 #ifndef MAXPHYS
    664 #define MAXPHYS (64 * 1024)
    665 #endif
    666 
    667 /* XXX needed by makefs; this should be done in a better way */
    668 #undef btodb
    669 #define btodb(x) ((x) << 9)
    670 
    671 #undef setbit
    672 #undef clrbit
    673 #undef isset
    674 #undef isclr
    675 #define	setbit(a,i)	((a)[(i)/NBBY] |= 1<<((i)%NBBY))
    676 #define	clrbit(a,i)	((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
    677 #define	isset(a,i)	((a)[(i)/NBBY] & (1<<((i)%NBBY)))
    678 #define	isclr(a,i)	(((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
    679 
    680 #ifndef powerof2
    681 #define powerof2(x) ((((x)-1)&(x))==0)
    682 #endif
    683 
    684 #undef roundup
    685 #define roundup(x, y)	((((x)+((y)-1))/(y))*(y))
    686 
    687 /* <sys/stat.h> */
    688 
    689 #ifndef ALLPERMS
    690 #define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
    691 #endif
    692 #ifndef DEFFILEMODE
    693 #define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
    694 #endif
    695 #ifndef S_ISTXT
    696 #ifdef S_ISVTX
    697 #define S_ISTXT S_ISVTX
    698 #else
    699 #define S_ISTXT 0
    700 #endif
    701 #endif
    702 
    703 /* Protected by _NETBSD_SOURCE otherwise. */
    704 #if HAVE_STRUCT_STAT_ST_FLAGS && defined(__NetBSD__)
    705 #define UF_SETTABLE     0x0000ffff
    706 #define UF_NODUMP       0x00000001
    707 #define UF_IMMUTABLE    0x00000002
    708 #define UF_APPEND       0x00000004
    709 #define UF_OPAQUE       0x00000008
    710 #define SF_SETTABLE     0xffff0000
    711 #define SF_ARCHIVED     0x00010000
    712 #define SF_IMMUTABLE    0x00020000
    713 #define SF_APPEND       0x00040000
    714 #endif
    715 
    716 /* <sys/syslimits.h> */
    717 
    718 #ifndef LINE_MAX
    719 #define LINE_MAX 2048
    720 #endif
    721 
    722 /* <sys/time.h> */
    723 
    724 #ifndef timercmp
    725 #define	timercmp(tvp, uvp, cmp)						\
    726 	(((tvp)->tv_sec == (uvp)->tv_sec) ?				\
    727 	    ((tvp)->tv_usec cmp (uvp)->tv_usec) :			\
    728 	    ((tvp)->tv_sec cmp (uvp)->tv_sec))
    729 #endif
    730 #ifndef timeradd
    731 #define	timeradd(tvp, uvp, vvp)						\
    732 	do {								\
    733 		(vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;		\
    734 		(vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;	\
    735 		if ((vvp)->tv_usec >= 1000000) {			\
    736 			(vvp)->tv_sec++;				\
    737 			(vvp)->tv_usec -= 1000000;			\
    738 		}							\
    739 	} while (/* CONSTCOND */ 0)
    740 #endif
    741 #ifndef timersub
    742 #define	timersub(tvp, uvp, vvp)						\
    743 	do {								\
    744 		(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;		\
    745 		(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;	\
    746 		if ((vvp)->tv_usec < 0) {				\
    747 			(vvp)->tv_sec--;				\
    748 			(vvp)->tv_usec += 1000000;			\
    749 		}							\
    750 	} while (/* CONSTCOND */ 0)
    751 #endif
    752 
    753 /* <sys/types.h> */
    754 
    755 #ifdef major
    756 #undef major
    757 #endif
    758 #define major(x)        ((int32_t)((((x) & 0x000fff00) >>  8)))
    759 
    760 #ifdef minor
    761 #undef minor
    762 #endif
    763 #define minor(x)        ((int32_t)((((x) & 0xfff00000) >> 12) | \
    764                                    (((x) & 0x000000ff) >>  0)))
    765 #ifdef makedev
    766 #undef makedev
    767 #endif
    768 #define makedev(x,y)    ((dev_t)((((x) <<  8) & 0x000fff00) | \
    769 			(((y) << 12) & 0xfff00000) | \
    770 			(((y) <<  0) & 0x000000ff)))
    771 #ifndef NBBY
    772 #define NBBY 8
    773 #endif
    774 
    775 #if !HAVE_U_QUAD_T
    776 /* #define, not typedef, as quad_t exists as a struct on some systems */
    777 #define quad_t long long
    778 #define u_quad_t unsigned long long
    779 #define strtoq strtoll
    780 #define strtouq strtoull
    781 #endif
    782 
    783 /* Has quad_t but these prototypes don't get pulled into scope. w/o we lose */
    784 #ifdef __NetBSD__
    785 quad_t   strtoq __P((const char *, char **, int));
    786 u_quad_t strtouq __P((const char *, char **, int));
    787 #endif
    788 
    789 #endif	/* !__NETBSD_COMPAT_DEFS_H__ */
    790