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compat_defs.h revision 1.57.2.1
      1 /*	$NetBSD: compat_defs.h,v 1.57.2.1 2007/08/30 22:37:36 pavel 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 #undef __unused
    115 #define __unused
    116 
    117 /* Dirent support. */
    118 
    119 #if HAVE_DIRENT_H
    120 # if defined(__linux__) && defined(__USE_BSD)
    121 #  undef __USE_BSD
    122 #  include <dirent.h>
    123 #  define __USE_BSD 1
    124 #  undef d_fileno
    125 # else
    126 #  include <dirent.h>
    127 #  if defined(__DARWIN_UNIX03)
    128 #   undef d_fileno
    129 #  endif
    130 # endif
    131 # define NAMLEN(dirent) (strlen((dirent)->d_name))
    132 #else
    133 # define dirent direct
    134 # define NAMLEN(dirent) ((dirent)->d_namlen)
    135 # if HAVE_SYS_NDIR_H
    136 #  include <sys/ndir.h>
    137 # endif
    138 # if HAVE_SYS_DIR_H
    139 #  include <sys/dir.h>
    140 # endif
    141 # if HAVE_NDIR_H
    142 #  include <ndir.h>
    143 # endif
    144 #endif
    145 
    146 /* Type substitutes. */
    147 
    148 #if !HAVE_ID_T
    149 typedef unsigned long id_t;
    150 #endif
    151 
    152 #if !HAVE_SOCKLEN_T
    153 typedef int socklen_t;
    154 #endif
    155 
    156 #if !HAVE_U_LONG
    157 typedef unsigned long u_long;
    158 #endif
    159 
    160 #if !HAVE_U_CHAR
    161 typedef unsigned char u_char;
    162 #endif
    163 
    164 #if !HAVE_U_INT
    165 typedef unsigned int u_int;
    166 #endif
    167 
    168 #if !HAVE_U_SHORT
    169 typedef unsigned short u_short;
    170 #endif
    171 
    172 /* Prototypes for replacement functions. */
    173 
    174 #if !HAVE_ATOLL
    175 long long int atoll(const char *);
    176 #endif
    177 
    178 #if !HAVE_ASPRINTF
    179 int asprintf(char **, const char *, ...);
    180 #endif
    181 
    182 #if !HAVE_ASNPRINTF
    183 int asnprintf(char **, size_t, const char *, ...);
    184 #endif
    185 
    186 #if !HAVE_BASENAME
    187 char *basename(char *);
    188 #endif
    189 
    190 #if !HAVE_DECL_OPTIND
    191 int getopt(int, char *const *, const char *);
    192 extern char *optarg;
    193 extern int optind, opterr, optopt;
    194 #endif
    195 
    196 #if !HAVE_DIRNAME
    197 char *dirname(char *);
    198 #endif
    199 
    200 #if !HAVE_DIRFD
    201 #if HAVE_DIR_DD_FD
    202 #define dirfd(dirp) ((dirp)->dd_fd)
    203 #elif HAVE_DIR___DD_FD
    204 #define dirfd(dirp) ((dirp)->__dd_fd)
    205 #else
    206 /*XXX: Very hacky but no other way to bring this into scope w/o defining
    207   _NETBSD_SOURCE which we're avoiding. */
    208 #ifdef __NetBSD__
    209 struct _dirdesc {
    210         int     dd_fd;          /* file descriptor associated with directory */
    211 	long    dd_loc;         /* offset in current buffer */
    212 	long    dd_size;        /* amount of data returned by getdents */
    213 	char    *dd_buf;        /* data buffer */
    214 	int     dd_len;         /* size of data buffer */
    215 	off_t   dd_seek;        /* magic cookie returned by getdents */
    216 	long    dd_rewind;      /* magic cookie for rewinding */
    217 	int     dd_flags;       /* flags for readdir */
    218 	void    *dd_lock;       /* lock for concurrent access */
    219 };
    220 #define dirfd(dirp)     (((struct _dirdesc *)dirp)->dd_fd)
    221 #else
    222 #error cannot figure out how to turn a DIR * into a fd
    223 #endif
    224 #endif
    225 #endif
    226 
    227 #if !HAVE_ERR_H
    228 void err(int, const char *, ...);
    229 void errx(int, const char *, ...);
    230 void warn(const char *, ...);
    231 void warnx(const char *, ...);
    232 #endif
    233 
    234 #if !HAVE_ESETFUNC
    235 void (*esetfunc(void (*)(int, const char *, ...)))(int, const char *, ...);
    236 size_t estrlcpy(char *, const char *, size_t);
    237 size_t estrlcat(char *, const char *, size_t);
    238 char *estrdup(const char *);
    239 void *ecalloc(size_t, size_t);
    240 void *emalloc(size_t);
    241 void *erealloc(void *, size_t);
    242 FILE *efopen(const char *, const char *);
    243 int easprintf(char **, const char *, ...);
    244 int evasprintf(char **, const char *, va_list);
    245 #endif
    246 
    247 #if !HAVE_FGETLN || defined(__NetBSD__)
    248 char *fgetln(FILE *, size_t *);
    249 #endif
    250 
    251 #if !HAVE_FLOCK
    252 # define LOCK_SH		0x01
    253 # define LOCK_EX		0x02
    254 # define LOCK_NB		0x04
    255 # define LOCK_UN		0x08
    256 int flock(int, int);
    257 #endif
    258 
    259 #if !HAVE_FPARSELN || defined(__NetBSD__)
    260 # define FPARSELN_UNESCESC	0x01
    261 # define FPARSELN_UNESCCONT	0x02
    262 # define FPARSELN_UNESCCOMM	0x04
    263 # define FPARSELN_UNESCREST	0x08
    264 # define FPARSELN_UNESCALL	0x0f
    265 char *fparseln(FILE *, size_t *, size_t *, const char [3], int);
    266 #endif
    267 
    268 #if !HAVE_ISSETUGID
    269 int issetugid(void);
    270 #endif
    271 
    272 #if !HAVE_ISBLANK && !defined(isblank)
    273 #define isblank(x) ((x) == ' ' || (x) == '\t')
    274 #endif
    275 
    276 #if !HAVE_LCHFLAGS
    277 int lchflags(const char *, u_long);
    278 #endif
    279 
    280 #if !HAVE_LCHMOD
    281 int lchmod(const char *, mode_t);
    282 #endif
    283 
    284 #if !HAVE_LCHOWN
    285 int lchown(const char *, uid_t, gid_t);
    286 #endif
    287 
    288 #define __nbcompat_bswap16(x)	((((x) << 8) & 0xff00) | (((x) >> 8) & 0x00ff))
    289 
    290 #define __nbcompat_bswap32(x)	((((x) << 24) & 0xff000000) | \
    291 				 (((x) <<  8) & 0x00ff0000) | \
    292 				 (((x) >>  8) & 0x0000ff00) | \
    293 				 (((x) >> 24) & 0x000000ff))
    294 
    295 #define __nbcompat_bswap64(x)	(((u_int64_t)bswap32((x)) << 32) | \
    296 				 ((u_int64_t)bswap32((x) >> 32)))
    297 
    298 #if ! HAVE_DECL_BSWAP16
    299 #ifdef bswap16
    300 #undef bswap16
    301 #endif
    302 #define bswap16(x)	__nbcompat_bswap16(x)
    303 #endif
    304 #if ! HAVE_DECL_BSWAP32
    305 #ifdef bswap32
    306 #undef bswap32
    307 #endif
    308 #define bswap32(x)	__nbcompat_bswap32(x)
    309 #endif
    310 #if ! HAVE_DECL_BSWAP64
    311 #ifdef bswap64
    312 #undef bswap64
    313 #endif
    314 #define bswap64(x)	__nbcompat_bswap64(x)
    315 #endif
    316 
    317 #if !HAVE_MKSTEMP
    318 int mkstemp(char *);
    319 #endif
    320 
    321 #if !HAVE_MKDTEMP
    322 char *mkdtemp(char *);
    323 #endif
    324 
    325 #if !HAVE_MKSTEMP || !HAVE_MKDTEMP
    326 /* This is a prototype for the internal function. */
    327 int gettemp(char *, int *, int);
    328 #endif
    329 
    330 #if !HAVE_PREAD
    331 ssize_t pread(int, void *, size_t, off_t);
    332 #endif
    333 
    334 #if !HAVE_HEAPSORT
    335 int heapsort (void *, size_t, size_t, int (*)(const void *, const void *));
    336 #endif
    337 /* Make them use our version */
    338 #  define heapsort __nbcompat_heapsort
    339 
    340 #if !HAVE_PWCACHE_USERDB
    341 int uid_from_user(const char *, uid_t *);
    342 int pwcache_userdb(int (*)(int), void (*)(void),
    343 		struct passwd * (*)(const char *), struct passwd * (*)(uid_t));
    344 int gid_from_group(const char *, gid_t *);
    345 int pwcache_groupdb(int (*)(int), void (*)(void),
    346 		struct group * (*)(const char *), struct group * (*)(gid_t));
    347 #endif
    348 /* Make them use our version */
    349 #  define user_from_uid __nbcompat_user_from_uid
    350 /* Make them use our version */
    351 #  define group_from_gid __nbcompat_group_from_gid
    352 
    353 #if !HAVE_PWRITE
    354 ssize_t pwrite(int, const void *, size_t, off_t);
    355 #endif
    356 
    357 #if !HAVE_SETENV
    358 int setenv(const char *, const char *, int);
    359 #endif
    360 
    361 #if !HAVE_DECL_SETGROUPENT
    362 int setgroupent(int);
    363 #endif
    364 
    365 #if !HAVE_DECL_SETPASSENT
    366 int setpassent(int);
    367 #endif
    368 
    369 #if !HAVE_SETPROGNAME || defined(__NetBSD__)
    370 const char *getprogname(void);
    371 void setprogname(const char *);
    372 #endif
    373 
    374 #if !HAVE_SNPRINTF
    375 int snprintf(char *, size_t, const char *, ...);
    376 #endif
    377 
    378 #if !HAVE_STRLCAT
    379 size_t strlcat(char *, const char *, size_t);
    380 #endif
    381 
    382 #if !HAVE_STRLCPY
    383 size_t strlcpy(char *, const char *, size_t);
    384 #endif
    385 
    386 #if !HAVE_STRMODE
    387 void strmode(mode_t, char *);
    388 #endif
    389 
    390 #if !HAVE_STRSEP || defined(__NetBSD__)
    391 char *strsep(char **, const char *);
    392 #endif
    393 
    394 #if !HAVE_DECL_STRSUFTOLL
    395 long long strsuftoll(const char *, const char *, long long, long long);
    396 long long strsuftollx(const char *, const char *,
    397 			long long, long long, char *, size_t);
    398 #endif
    399 
    400 #if !HAVE_STRTOLL
    401 long long strtoll(const char *, char **, int);
    402 #endif
    403 
    404 #if !HAVE_USER_FROM_UID
    405 const char *user_from_uid(uid_t, int);
    406 #endif
    407 
    408 #if !HAVE_GROUP_FROM_GID
    409 const char *group_from_gid(gid_t, int);
    410 #endif
    411 
    412 #if !HAVE_VASPRINTF
    413 int vasprintf(char **, const char *, va_list);
    414 #endif
    415 
    416 #if !HAVE_VASNPRINTF
    417 int vasnprintf(char **, size_t, const char *, va_list);
    418 #endif
    419 
    420 #if !HAVE_VSNPRINTF
    421 int vsnprintf(char *, size_t, const char *, va_list);
    422 #endif
    423 
    424 /*
    425  * getmode() and setmode() are always defined, as these function names
    426  * exist but with very different meanings on other OS's.  The compat
    427  * versions here simply accept an octal mode number; the "u+x,g-w" type
    428  * of syntax is not accepted.
    429  */
    430 
    431 #define getmode __nbcompat_getmode
    432 #define setmode __nbcompat_setmode
    433 
    434 mode_t getmode(const void *, mode_t);
    435 void *setmode(const char *);
    436 
    437 /* Eliminate assertions embedded in binaries. */
    438 
    439 #undef _DIAGASSERT
    440 #define _DIAGASSERT(x)
    441 
    442 /* Various sources use this */
    443 #undef	__RCSID
    444 #define	__RCSID(x)
    445 #undef	__SCCSID
    446 #define	__SCCSID(x)
    447 #undef	__COPYRIGHT
    448 #define	__COPYRIGHT(x)
    449 #undef	__KERNEL_RCSID
    450 #define	__KERNEL_RCSID(x,y)
    451 
    452 /* Heimdal expects this one. */
    453 
    454 #undef RCSID
    455 #define RCSID(x)
    456 
    457 /* Some definitions not available on all systems. */
    458 
    459 /* <errno.h> */
    460 
    461 #ifndef EFTYPE
    462 #define EFTYPE EIO
    463 #endif
    464 
    465 /* <fcntl.h> */
    466 
    467 #ifndef O_EXLOCK
    468 #define O_EXLOCK 0
    469 #endif
    470 #ifndef O_SHLOCK
    471 #define O_SHLOCK 0
    472 #endif
    473 
    474 /* <limits.h> */
    475 
    476 #ifndef UID_MAX
    477 #define UID_MAX 32767
    478 #endif
    479 #ifndef GID_MAX
    480 #define GID_MAX UID_MAX
    481 #endif
    482 
    483 #ifndef UQUAD_MAX
    484 #define UQUAD_MAX ((u_quad_t)-1)
    485 #endif
    486 #ifndef QUAD_MAX
    487 #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1))
    488 #endif
    489 #ifndef QUAD_MIN
    490 #define QUAD_MIN ((quad_t)(~QUAD_MAX))
    491 #endif
    492 #ifndef ULLONG_MAX
    493 #define ULLONG_MAX ((unsigned long long)-1)
    494 #endif
    495 #ifndef LLONG_MAX
    496 #define LLONG_MAX ((long long)(ULLONG_MAX >> 1))
    497 #endif
    498 #ifndef LLONG_MIN
    499 #define LLONG_MIN ((long long)(~LLONG_MAX))
    500 #endif
    501 
    502 /* <paths.h> */
    503 
    504 /* The host's _PATH_BSHELL might be broken, so override it. */
    505 #undef _PATH_BSHELL
    506 #define _PATH_BSHELL PATH_BSHELL
    507 #ifndef _PATH_DEFPATH
    508 #define _PATH_DEFPATH "/usr/bin:/bin:/usr/local/bin"
    509 #endif
    510 #ifndef _PATH_DEV
    511 #define _PATH_DEV "/dev/"
    512 #endif
    513 #ifndef _PATH_DEVNULL
    514 #define _PATH_DEVNULL _PATH_DEV "null"
    515 #endif
    516 #ifndef _PATH_TMP
    517 #define _PATH_TMP "/tmp/"
    518 #endif
    519 #ifndef _PATH_DEFTAPE
    520 #define _PATH_DEFTAPE "/dev/nrst0"
    521 #endif
    522 #ifndef _PATH_VI
    523 #define _PATH_VI "/usr/bin/vi"
    524 #endif
    525 
    526 /* <stdarg.h> */
    527 
    528 #ifndef _BSD_VA_LIST_
    529 #define _BSD_VA_LIST_ va_list
    530 #endif
    531 
    532 /* <stdint.h> */
    533 
    534 #if !defined(SIZE_MAX) && defined(SIZE_T_MAX)
    535 #define SIZE_MAX SIZE_T_MAX
    536 #endif
    537 
    538 #ifndef UINT8_MAX
    539 #define UINT8_MAX 0xffU
    540 #endif
    541 
    542 #ifndef UINT16_MAX
    543 #define UINT16_MAX 0xffffU
    544 #endif
    545 
    546 #ifndef UINT32_MAX
    547 #define UINT32_MAX 0xffffffffU
    548 #endif
    549 
    550 /* <stdlib.h> */
    551 
    552 #ifndef __GNUC__
    553 # if HAVE_ALLOCA_H
    554 #  include <alloca.h>
    555 # else
    556 #  ifndef alloca /* predefined by HP cc +Olibcalls */
    557 char *alloca ();
    558 #  endif
    559 # endif
    560 #endif
    561 
    562 /* avoid prototype conflicts with host */
    563 #define cgetcap __nbcompat_cgetcap
    564 #define cgetclose __nbcompat_cgetclose
    565 #define cgetent __nbcompat_cgetent
    566 #define cgetfirst __nbcompat_cgetfirst
    567 #define cgetmatch __nbcompat_cgetmatch
    568 #define cgetnext __nbcompat_cgetnext
    569 #define cgetnum __nbcompat_cgetnum
    570 #define cgetset __nbcompat_cgetset
    571 #define cgetstr __nbcompat_cgetstr
    572 #define cgetustr __nbcompat_cgetustr
    573 
    574 char	*cgetcap(char *, const char *, int);
    575 int	 cgetclose(void);
    576 int	 cgetent(char **, const char * const *, const char *);
    577 int	 cgetfirst(char **, const char * const *);
    578 int	 cgetmatch(const char *, const char *);
    579 int	 cgetnext(char **, const char * const *);
    580 int	 cgetnum(char *, const char *, long *);
    581 int	 cgetset(const char *);
    582 int	 cgetstr(char *, const char *, char **);
    583 int	 cgetustr(char *, const char *, char **);
    584 
    585 /* <sys/endian.h> */
    586 
    587 #if WORDS_BIGENDIAN
    588 #if !HAVE_DECL_HTOBE16
    589 #define htobe16(x)	(x)
    590 #endif
    591 #if !HAVE_DECL_HTOBE32
    592 #define htobe32(x)	(x)
    593 #endif
    594 #if !HAVE_DECL_HTOBE64
    595 #define htobe64(x)	(x)
    596 #endif
    597 #if !HAVE_DECL_HTOLE16
    598 #define htole16(x)	bswap16((u_int16_t)(x))
    599 #endif
    600 #if !HAVE_DECL_HTOLE32
    601 #define htole32(x)	bswap32((u_int32_t)(x))
    602 #endif
    603 #if !HAVE_DECL_HTOLE64
    604 #define htole64(x)	bswap64((u_int64_t)(x))
    605 #endif
    606 #else
    607 #if !HAVE_DECL_HTOBE16
    608 #define htobe16(x)	bswap16((u_int16_t)(x))
    609 #endif
    610 #if !HAVE_DECL_HTOBE32
    611 #define htobe32(x)	bswap32((u_int32_t)(x))
    612 #endif
    613 #if !HAVE_DECL_HTOBE64
    614 #define htobe64(x)	bswap64((u_int64_t)(x))
    615 #endif
    616 #if !HAVE_DECL_HTOLE16
    617 #define htole16(x)	(x)
    618 #endif
    619 #if !HAVE_DECL_HTOLE32
    620 #define htole32(x)	(x)
    621 #endif
    622 #if !HAVE_DECL_HTOLE64
    623 #define htole64(x)	(x)
    624 #endif
    625 #endif
    626 #if !HAVE_DECL_BE16TOH
    627 #define be16toh(x)	htobe16(x)
    628 #endif
    629 #if !HAVE_DECL_BE32TOH
    630 #define be32toh(x)	htobe32(x)
    631 #endif
    632 #if !HAVE_DECL_BE64TOH
    633 #define be64toh(x)	htobe64(x)
    634 #endif
    635 #if !HAVE_DECL_LE16TOH
    636 #define le16toh(x)	htole16(x)
    637 #endif
    638 #if !HAVE_DECL_LE32TOH
    639 #define le32toh(x)	htole32(x)
    640 #endif
    641 #if !HAVE_DECL_LE64TOH
    642 #define le64toh(x)	htole64(x)
    643 #endif
    644 
    645 #define __GEN_ENDIAN_ENC(bits, endian) \
    646 static void \
    647 endian ## bits ## enc(void *dst, uint ## bits ## _t u) \
    648 { \
    649 	u = hto ## endian ## bits (u); \
    650 	memcpy(dst, &u, sizeof(u)); \
    651 }
    652 #if !HAVE_DECL_BE16ENC
    653 __GEN_ENDIAN_ENC(16, be)
    654 #endif
    655 #if !HAVE_DECL_BE32ENC
    656 __GEN_ENDIAN_ENC(32, be)
    657 #endif
    658 #if !HAVE_DECL_BE64ENC
    659 __GEN_ENDIAN_ENC(64, be)
    660 #endif
    661 #if !HAVE_DECL_LE16ENC
    662 __GEN_ENDIAN_ENC(16, le)
    663 #endif
    664 #if !HAVE_DECL_LE32ENC
    665 __GEN_ENDIAN_ENC(32, le)
    666 #endif
    667 #if !HAVE_DECL_LE64ENC
    668 __GEN_ENDIAN_ENC(64, le)
    669 #endif
    670 #undef __GEN_ENDIAN_ENC
    671 
    672 #define __GEN_ENDIAN_DEC(bits, endian) \
    673 static uint ## bits ## _t \
    674 endian ## bits ## dec(const void *buf) \
    675 { \
    676 	uint ## bits ## _t u; \
    677 	memcpy(&u, buf, sizeof(u)); \
    678 	return endian ## bits ## toh (u); \
    679 }
    680 #if !HAVE_DECL_BE16DEC
    681 __GEN_ENDIAN_DEC(16, be)
    682 #endif
    683 #if !HAVE_DECL_BE32DEC
    684 __GEN_ENDIAN_DEC(32, be)
    685 #endif
    686 #if !HAVE_DECL_BE64DEC
    687 __GEN_ENDIAN_DEC(64, be)
    688 #endif
    689 #if !HAVE_DECL_LE16DEC
    690 __GEN_ENDIAN_DEC(16, le)
    691 #endif
    692 #if !HAVE_DECL_LE32DEC
    693 __GEN_ENDIAN_DEC(32, le)
    694 #endif
    695 #if !HAVE_DECL_LE64DEC
    696 __GEN_ENDIAN_DEC(64, le)
    697 #endif
    698 #undef __GEN_ENDIAN_DEC
    699 
    700 /* <sys/mman.h> */
    701 
    702 #ifndef MAP_FILE
    703 #define MAP_FILE 0
    704 #endif
    705 
    706 /* HP-UX has MAP_ANONYMOUS but not MAP_ANON */
    707 #ifndef MAP_ANON
    708 #ifdef MAP_ANONYMOUS
    709 #define MAP_ANON MAP_ANONYMOUS
    710 #endif
    711 #endif
    712 
    713 /* <sys/param.h> */
    714 
    715 #undef BIG_ENDIAN
    716 #undef LITTLE_ENDIAN
    717 #define BIG_ENDIAN 4321
    718 #define LITTLE_ENDIAN 1234
    719 
    720 #undef BYTE_ORDER
    721 #if WORDS_BIGENDIAN
    722 #define BYTE_ORDER BIG_ENDIAN
    723 #else
    724 #define BYTE_ORDER LITTLE_ENDIAN
    725 #endif
    726 
    727 #ifndef DEV_BSIZE
    728 #define DEV_BSIZE (1 << 9)
    729 #endif
    730 
    731 #undef MIN
    732 #undef MAX
    733 #define MIN(a,b) ((a) < (b) ? (a) : (b))
    734 #define MAX(a,b) ((a) > (b) ? (a) : (b))
    735 
    736 #ifndef MAXBSIZE
    737 #define MAXBSIZE (64 * 1024)
    738 #endif
    739 #ifndef MAXFRAG
    740 #define MAXFRAG 8
    741 #endif
    742 #ifndef MAXPHYS
    743 #define MAXPHYS (64 * 1024)
    744 #endif
    745 
    746 /* XXX needed by makefs; this should be done in a better way */
    747 #undef btodb
    748 #define btodb(x) ((x) << 9)
    749 
    750 #undef setbit
    751 #undef clrbit
    752 #undef isset
    753 #undef isclr
    754 #define	setbit(a,i)	((a)[(i)/NBBY] |= 1<<((i)%NBBY))
    755 #define	clrbit(a,i)	((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
    756 #define	isset(a,i)	((a)[(i)/NBBY] & (1<<((i)%NBBY)))
    757 #define	isclr(a,i)	(((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
    758 
    759 #ifndef powerof2
    760 #define powerof2(x) ((((x)-1)&(x))==0)
    761 #endif
    762 
    763 #undef roundup
    764 #define roundup(x, y)	((((x)+((y)-1))/(y))*(y))
    765 
    766 /* <sys/stat.h> */
    767 
    768 #ifndef ALLPERMS
    769 #define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
    770 #endif
    771 #ifndef DEFFILEMODE
    772 #define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
    773 #endif
    774 #ifndef S_ISTXT
    775 #ifdef S_ISVTX
    776 #define S_ISTXT S_ISVTX
    777 #else
    778 #define S_ISTXT 0
    779 #endif
    780 #endif
    781 
    782 /* Protected by _NETBSD_SOURCE otherwise. */
    783 #if HAVE_STRUCT_STAT_ST_FLAGS && defined(__NetBSD__)
    784 #define UF_SETTABLE     0x0000ffff
    785 #define UF_NODUMP       0x00000001
    786 #define UF_IMMUTABLE    0x00000002
    787 #define UF_APPEND       0x00000004
    788 #define UF_OPAQUE       0x00000008
    789 #define SF_SETTABLE     0xffff0000
    790 #define SF_ARCHIVED     0x00010000
    791 #define SF_IMMUTABLE    0x00020000
    792 #define SF_APPEND       0x00040000
    793 #endif
    794 
    795 /* <sys/syslimits.h> */
    796 
    797 #ifndef LINE_MAX
    798 #define LINE_MAX 2048
    799 #endif
    800 
    801 /* <sys/time.h> */
    802 
    803 #ifndef timercmp
    804 #define	timercmp(tvp, uvp, cmp)						\
    805 	(((tvp)->tv_sec == (uvp)->tv_sec) ?				\
    806 	    ((tvp)->tv_usec cmp (uvp)->tv_usec) :			\
    807 	    ((tvp)->tv_sec cmp (uvp)->tv_sec))
    808 #endif
    809 #ifndef timeradd
    810 #define	timeradd(tvp, uvp, vvp)						\
    811 	do {								\
    812 		(vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;		\
    813 		(vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;	\
    814 		if ((vvp)->tv_usec >= 1000000) {			\
    815 			(vvp)->tv_sec++;				\
    816 			(vvp)->tv_usec -= 1000000;			\
    817 		}							\
    818 	} while (/* CONSTCOND */ 0)
    819 #endif
    820 #ifndef timersub
    821 #define	timersub(tvp, uvp, vvp)						\
    822 	do {								\
    823 		(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;		\
    824 		(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;	\
    825 		if ((vvp)->tv_usec < 0) {				\
    826 			(vvp)->tv_sec--;				\
    827 			(vvp)->tv_usec += 1000000;			\
    828 		}							\
    829 	} while (/* CONSTCOND */ 0)
    830 #endif
    831 
    832 /* <sys/types.h> */
    833 
    834 #ifdef major
    835 #undef major
    836 #endif
    837 #define major(x)        ((int32_t)((((x) & 0x000fff00) >>  8)))
    838 
    839 #ifdef minor
    840 #undef minor
    841 #endif
    842 #define minor(x)        ((int32_t)((((x) & 0xfff00000) >> 12) | \
    843                                    (((x) & 0x000000ff) >>  0)))
    844 #ifdef makedev
    845 #undef makedev
    846 #endif
    847 #define makedev(x,y)    ((dev_t)((((x) <<  8) & 0x000fff00) | \
    848 			(((y) << 12) & 0xfff00000) | \
    849 			(((y) <<  0) & 0x000000ff)))
    850 #ifndef NBBY
    851 #define NBBY 8
    852 #endif
    853 
    854 #if !HAVE_U_QUAD_T
    855 /* #define, not typedef, as quad_t exists as a struct on some systems */
    856 #define quad_t long long
    857 #define u_quad_t unsigned long long
    858 #define strtoq strtoll
    859 #define strtouq strtoull
    860 #endif
    861 
    862 /* Has quad_t but these prototypes don't get pulled into scope. w/o we lose */
    863 #ifdef __NetBSD__
    864 quad_t   strtoq __P((const char *, char **, int));
    865 u_quad_t strtouq __P((const char *, char **, int));
    866 #endif
    867 
    868 #endif	/* !__NETBSD_COMPAT_DEFS_H__ */
    869