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compat_defs.h revision 1.61
      1 /*	$NetBSD: compat_defs.h,v 1.61 2007/09/28 09:11:11 lukem 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 int 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 char *estrndup(const char *, size_t);
    240 void *ecalloc(size_t, size_t);
    241 void *emalloc(size_t);
    242 void *erealloc(void *, size_t);
    243 FILE *efopen(const char *, const char *);
    244 int easprintf(char **, const char *, ...);
    245 int evasprintf(char **, const char *, va_list);
    246 #endif
    247 
    248 #if !HAVE_FGETLN || defined(__NetBSD__)
    249 char *fgetln(FILE *, size_t *);
    250 #endif
    251 
    252 #if !HAVE_FLOCK
    253 # define LOCK_SH		0x01
    254 # define LOCK_EX		0x02
    255 # define LOCK_NB		0x04
    256 # define LOCK_UN		0x08
    257 int flock(int, int);
    258 #endif
    259 
    260 #if !HAVE_FPARSELN || defined(__NetBSD__)
    261 # define FPARSELN_UNESCESC	0x01
    262 # define FPARSELN_UNESCCONT	0x02
    263 # define FPARSELN_UNESCCOMM	0x04
    264 # define FPARSELN_UNESCREST	0x08
    265 # define FPARSELN_UNESCALL	0x0f
    266 char *fparseln(FILE *, size_t *, size_t *, const char [3], int);
    267 #endif
    268 
    269 #if !HAVE_ISSETUGID
    270 int issetugid(void);
    271 #endif
    272 
    273 #if !HAVE_ISBLANK && !defined(isblank)
    274 #define isblank(x) ((x) == ' ' || (x) == '\t')
    275 #endif
    276 
    277 #if !HAVE_LCHFLAGS
    278 int lchflags(const char *, u_long);
    279 #endif
    280 
    281 #if !HAVE_LCHMOD
    282 int lchmod(const char *, mode_t);
    283 #endif
    284 
    285 #if !HAVE_LCHOWN
    286 int lchown(const char *, uid_t, gid_t);
    287 #endif
    288 
    289 #define __nbcompat_bswap16(x)	((((x) << 8) & 0xff00) | (((x) >> 8) & 0x00ff))
    290 
    291 #define __nbcompat_bswap32(x)	((((x) << 24) & 0xff000000) | \
    292 				 (((x) <<  8) & 0x00ff0000) | \
    293 				 (((x) >>  8) & 0x0000ff00) | \
    294 				 (((x) >> 24) & 0x000000ff))
    295 
    296 #define __nbcompat_bswap64(x)	(((u_int64_t)bswap32((x)) << 32) | \
    297 				 ((u_int64_t)bswap32((x) >> 32)))
    298 
    299 #if ! HAVE_DECL_BSWAP16
    300 #ifdef bswap16
    301 #undef bswap16
    302 #endif
    303 #define bswap16(x)	__nbcompat_bswap16(x)
    304 #endif
    305 #if ! HAVE_DECL_BSWAP32
    306 #ifdef bswap32
    307 #undef bswap32
    308 #endif
    309 #define bswap32(x)	__nbcompat_bswap32(x)
    310 #endif
    311 #if ! HAVE_DECL_BSWAP64
    312 #ifdef bswap64
    313 #undef bswap64
    314 #endif
    315 #define bswap64(x)	__nbcompat_bswap64(x)
    316 #endif
    317 
    318 #if !HAVE_MKSTEMP
    319 int mkstemp(char *);
    320 #endif
    321 
    322 #if !HAVE_MKDTEMP
    323 char *mkdtemp(char *);
    324 #endif
    325 
    326 #if !HAVE_MKSTEMP || !HAVE_MKDTEMP
    327 /* This is a prototype for the internal function. */
    328 int gettemp(char *, int *, int);
    329 #endif
    330 
    331 #if !HAVE_PREAD
    332 ssize_t pread(int, void *, size_t, off_t);
    333 #endif
    334 
    335 #if !HAVE_HEAPSORT
    336 int heapsort (void *, size_t, size_t, int (*)(const void *, const void *));
    337 #endif
    338 /* Make them use our version */
    339 #  define heapsort __nbcompat_heapsort
    340 
    341 #if !HAVE_PWCACHE_USERDB
    342 int uid_from_user(const char *, uid_t *);
    343 int pwcache_userdb(int (*)(int), void (*)(void),
    344 		struct passwd * (*)(const char *), struct passwd * (*)(uid_t));
    345 int gid_from_group(const char *, gid_t *);
    346 int pwcache_groupdb(int (*)(int), void (*)(void),
    347 		struct group * (*)(const char *), struct group * (*)(gid_t));
    348 #endif
    349 /* Make them use our version */
    350 #  define user_from_uid __nbcompat_user_from_uid
    351 /* Make them use our version */
    352 #  define group_from_gid __nbcompat_group_from_gid
    353 
    354 #if !HAVE_PWRITE
    355 ssize_t pwrite(int, const void *, size_t, off_t);
    356 #endif
    357 
    358 #if !HAVE_RAISE_DEFAULT_SIGNAL
    359 int raise_default_signal(int);
    360 #endif
    361 
    362 #if !HAVE_SETENV
    363 int setenv(const char *, const char *, int);
    364 #endif
    365 
    366 #if !HAVE_DECL_SETGROUPENT
    367 int setgroupent(int);
    368 #endif
    369 
    370 #if !HAVE_DECL_SETPASSENT
    371 int setpassent(int);
    372 #endif
    373 
    374 #if !HAVE_SETPROGNAME || defined(__NetBSD__)
    375 const char *getprogname(void);
    376 void setprogname(const char *);
    377 #endif
    378 
    379 #if !HAVE_SNPRINTF
    380 int snprintf(char *, size_t, const char *, ...);
    381 #endif
    382 
    383 #if !HAVE_STRLCAT
    384 size_t strlcat(char *, const char *, size_t);
    385 #endif
    386 
    387 #if !HAVE_STRLCPY
    388 size_t strlcpy(char *, const char *, size_t);
    389 #endif
    390 
    391 #if !HAVE_STRMODE
    392 void strmode(mode_t, char *);
    393 #endif
    394 
    395 #if !HAVE_STRNDUP
    396 char *strndup(const char *, size_t);
    397 #endif
    398 
    399 #if !HAVE_STRSEP || defined(__NetBSD__)
    400 char *strsep(char **, const char *);
    401 #endif
    402 
    403 #if !HAVE_DECL_STRSUFTOLL
    404 long long strsuftoll(const char *, const char *, long long, long long);
    405 long long strsuftollx(const char *, const char *,
    406 			long long, long long, char *, size_t);
    407 #endif
    408 
    409 #if !HAVE_STRTOLL
    410 long long strtoll(const char *, char **, int);
    411 #endif
    412 
    413 #if !HAVE_USER_FROM_UID
    414 const char *user_from_uid(uid_t, int);
    415 #endif
    416 
    417 #if !HAVE_GROUP_FROM_GID
    418 const char *group_from_gid(gid_t, int);
    419 #endif
    420 
    421 #if !HAVE_VASPRINTF
    422 int vasprintf(char **, const char *, va_list);
    423 #endif
    424 
    425 #if !HAVE_VASNPRINTF
    426 int vasnprintf(char **, size_t, const char *, va_list);
    427 #endif
    428 
    429 #if !HAVE_VSNPRINTF
    430 int vsnprintf(char *, size_t, const char *, va_list);
    431 #endif
    432 
    433 /*
    434  * getmode() and setmode() are always defined, as these function names
    435  * exist but with very different meanings on other OS's.  The compat
    436  * versions here simply accept an octal mode number; the "u+x,g-w" type
    437  * of syntax is not accepted.
    438  */
    439 
    440 #define getmode __nbcompat_getmode
    441 #define setmode __nbcompat_setmode
    442 
    443 mode_t getmode(const void *, mode_t);
    444 void *setmode(const char *);
    445 
    446 /* Eliminate assertions embedded in binaries. */
    447 
    448 #undef _DIAGASSERT
    449 #define _DIAGASSERT(x)
    450 
    451 /* Various sources use this */
    452 #undef	__RCSID
    453 #define	__RCSID(x)
    454 #undef	__SCCSID
    455 #define	__SCCSID(x)
    456 #undef	__COPYRIGHT
    457 #define	__COPYRIGHT(x)
    458 #undef	__KERNEL_RCSID
    459 #define	__KERNEL_RCSID(x,y)
    460 
    461 /* Heimdal expects this one. */
    462 
    463 #undef RCSID
    464 #define RCSID(x)
    465 
    466 /* Some definitions not available on all systems. */
    467 
    468 /* <errno.h> */
    469 
    470 #ifndef EFTYPE
    471 #define EFTYPE EIO
    472 #endif
    473 
    474 /* <fcntl.h> */
    475 
    476 #ifndef O_EXLOCK
    477 #define O_EXLOCK 0
    478 #endif
    479 #ifndef O_SHLOCK
    480 #define O_SHLOCK 0
    481 #endif
    482 
    483 /* <limits.h> */
    484 
    485 #ifndef UID_MAX
    486 #define UID_MAX 32767
    487 #endif
    488 #ifndef GID_MAX
    489 #define GID_MAX UID_MAX
    490 #endif
    491 
    492 #ifndef UQUAD_MAX
    493 #define UQUAD_MAX ((u_quad_t)-1)
    494 #endif
    495 #ifndef QUAD_MAX
    496 #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1))
    497 #endif
    498 #ifndef QUAD_MIN
    499 #define QUAD_MIN ((quad_t)(~QUAD_MAX))
    500 #endif
    501 #ifndef ULLONG_MAX
    502 #define ULLONG_MAX ((unsigned long long)-1)
    503 #endif
    504 #ifndef LLONG_MAX
    505 #define LLONG_MAX ((long long)(ULLONG_MAX >> 1))
    506 #endif
    507 #ifndef LLONG_MIN
    508 #define LLONG_MIN ((long long)(~LLONG_MAX))
    509 #endif
    510 
    511 /* <paths.h> */
    512 
    513 /* The host's _PATH_BSHELL might be broken, so override it. */
    514 #undef _PATH_BSHELL
    515 #define _PATH_BSHELL PATH_BSHELL
    516 #ifndef _PATH_DEFPATH
    517 #define _PATH_DEFPATH "/usr/bin:/bin:/usr/local/bin"
    518 #endif
    519 #ifndef _PATH_DEV
    520 #define _PATH_DEV "/dev/"
    521 #endif
    522 #ifndef _PATH_DEVNULL
    523 #define _PATH_DEVNULL _PATH_DEV "null"
    524 #endif
    525 #ifndef _PATH_TMP
    526 #define _PATH_TMP "/tmp/"
    527 #endif
    528 #ifndef _PATH_DEFTAPE
    529 #define _PATH_DEFTAPE "/dev/nrst0"
    530 #endif
    531 #ifndef _PATH_VI
    532 #define _PATH_VI "/usr/bin/vi"
    533 #endif
    534 
    535 /* <stdarg.h> */
    536 
    537 #ifndef _BSD_VA_LIST_
    538 #define _BSD_VA_LIST_ va_list
    539 #endif
    540 
    541 /* <stdint.h> */
    542 
    543 #if !defined(SIZE_MAX) && defined(SIZE_T_MAX)
    544 #define SIZE_MAX SIZE_T_MAX
    545 #endif
    546 
    547 #ifndef UINT8_MAX
    548 #define UINT8_MAX 0xffU
    549 #endif
    550 
    551 #ifndef UINT16_MAX
    552 #define UINT16_MAX 0xffffU
    553 #endif
    554 
    555 #ifndef UINT32_MAX
    556 #define UINT32_MAX 0xffffffffU
    557 #endif
    558 
    559 /* <stdlib.h> */
    560 
    561 #ifndef __GNUC__
    562 # if HAVE_ALLOCA_H
    563 #  include <alloca.h>
    564 # else
    565 #  ifndef alloca /* predefined by HP cc +Olibcalls */
    566 char *alloca ();
    567 #  endif
    568 # endif
    569 #endif
    570 
    571 /* avoid prototype conflicts with host */
    572 #define cgetcap __nbcompat_cgetcap
    573 #define cgetclose __nbcompat_cgetclose
    574 #define cgetent __nbcompat_cgetent
    575 #define cgetfirst __nbcompat_cgetfirst
    576 #define cgetmatch __nbcompat_cgetmatch
    577 #define cgetnext __nbcompat_cgetnext
    578 #define cgetnum __nbcompat_cgetnum
    579 #define cgetset __nbcompat_cgetset
    580 #define cgetstr __nbcompat_cgetstr
    581 #define cgetustr __nbcompat_cgetustr
    582 
    583 char	*cgetcap(char *, const char *, int);
    584 int	 cgetclose(void);
    585 int	 cgetent(char **, const char * const *, const char *);
    586 int	 cgetfirst(char **, const char * const *);
    587 int	 cgetmatch(const char *, const char *);
    588 int	 cgetnext(char **, const char * const *);
    589 int	 cgetnum(char *, const char *, long *);
    590 int	 cgetset(const char *);
    591 int	 cgetstr(char *, const char *, char **);
    592 int	 cgetustr(char *, const char *, char **);
    593 
    594 /* <sys/endian.h> */
    595 
    596 #if WORDS_BIGENDIAN
    597 #if !HAVE_DECL_HTOBE16
    598 #define htobe16(x)	(x)
    599 #endif
    600 #if !HAVE_DECL_HTOBE32
    601 #define htobe32(x)	(x)
    602 #endif
    603 #if !HAVE_DECL_HTOBE64
    604 #define htobe64(x)	(x)
    605 #endif
    606 #if !HAVE_DECL_HTOLE16
    607 #define htole16(x)	bswap16((u_int16_t)(x))
    608 #endif
    609 #if !HAVE_DECL_HTOLE32
    610 #define htole32(x)	bswap32((u_int32_t)(x))
    611 #endif
    612 #if !HAVE_DECL_HTOLE64
    613 #define htole64(x)	bswap64((u_int64_t)(x))
    614 #endif
    615 #else
    616 #if !HAVE_DECL_HTOBE16
    617 #define htobe16(x)	bswap16((u_int16_t)(x))
    618 #endif
    619 #if !HAVE_DECL_HTOBE32
    620 #define htobe32(x)	bswap32((u_int32_t)(x))
    621 #endif
    622 #if !HAVE_DECL_HTOBE64
    623 #define htobe64(x)	bswap64((u_int64_t)(x))
    624 #endif
    625 #if !HAVE_DECL_HTOLE16
    626 #define htole16(x)	(x)
    627 #endif
    628 #if !HAVE_DECL_HTOLE32
    629 #define htole32(x)	(x)
    630 #endif
    631 #if !HAVE_DECL_HTOLE64
    632 #define htole64(x)	(x)
    633 #endif
    634 #endif
    635 #if !HAVE_DECL_BE16TOH
    636 #define be16toh(x)	htobe16(x)
    637 #endif
    638 #if !HAVE_DECL_BE32TOH
    639 #define be32toh(x)	htobe32(x)
    640 #endif
    641 #if !HAVE_DECL_BE64TOH
    642 #define be64toh(x)	htobe64(x)
    643 #endif
    644 #if !HAVE_DECL_LE16TOH
    645 #define le16toh(x)	htole16(x)
    646 #endif
    647 #if !HAVE_DECL_LE32TOH
    648 #define le32toh(x)	htole32(x)
    649 #endif
    650 #if !HAVE_DECL_LE64TOH
    651 #define le64toh(x)	htole64(x)
    652 #endif
    653 
    654 #define __GEN_ENDIAN_ENC(bits, endian) \
    655 static void \
    656 endian ## bits ## enc(void *dst, uint ## bits ## _t u) \
    657 { \
    658 	u = hto ## endian ## bits (u); \
    659 	memcpy(dst, &u, sizeof(u)); \
    660 }
    661 #if !HAVE_DECL_BE16ENC
    662 __GEN_ENDIAN_ENC(16, be)
    663 #endif
    664 #if !HAVE_DECL_BE32ENC
    665 __GEN_ENDIAN_ENC(32, be)
    666 #endif
    667 #if !HAVE_DECL_BE64ENC
    668 __GEN_ENDIAN_ENC(64, be)
    669 #endif
    670 #if !HAVE_DECL_LE16ENC
    671 __GEN_ENDIAN_ENC(16, le)
    672 #endif
    673 #if !HAVE_DECL_LE32ENC
    674 __GEN_ENDIAN_ENC(32, le)
    675 #endif
    676 #if !HAVE_DECL_LE64ENC
    677 __GEN_ENDIAN_ENC(64, le)
    678 #endif
    679 #undef __GEN_ENDIAN_ENC
    680 
    681 #define __GEN_ENDIAN_DEC(bits, endian) \
    682 static uint ## bits ## _t \
    683 endian ## bits ## dec(const void *buf) \
    684 { \
    685 	uint ## bits ## _t u; \
    686 	memcpy(&u, buf, sizeof(u)); \
    687 	return endian ## bits ## toh (u); \
    688 }
    689 #if !HAVE_DECL_BE16DEC
    690 __GEN_ENDIAN_DEC(16, be)
    691 #endif
    692 #if !HAVE_DECL_BE32DEC
    693 __GEN_ENDIAN_DEC(32, be)
    694 #endif
    695 #if !HAVE_DECL_BE64DEC
    696 __GEN_ENDIAN_DEC(64, be)
    697 #endif
    698 #if !HAVE_DECL_LE16DEC
    699 __GEN_ENDIAN_DEC(16, le)
    700 #endif
    701 #if !HAVE_DECL_LE32DEC
    702 __GEN_ENDIAN_DEC(32, le)
    703 #endif
    704 #if !HAVE_DECL_LE64DEC
    705 __GEN_ENDIAN_DEC(64, le)
    706 #endif
    707 #undef __GEN_ENDIAN_DEC
    708 
    709 /* <sys/mman.h> */
    710 
    711 #ifndef MAP_FILE
    712 #define MAP_FILE 0
    713 #endif
    714 
    715 /* HP-UX has MAP_ANONYMOUS but not MAP_ANON */
    716 #ifndef MAP_ANON
    717 #ifdef MAP_ANONYMOUS
    718 #define MAP_ANON MAP_ANONYMOUS
    719 #endif
    720 #endif
    721 
    722 /* <sys/param.h> */
    723 
    724 #undef BIG_ENDIAN
    725 #undef LITTLE_ENDIAN
    726 #define BIG_ENDIAN 4321
    727 #define LITTLE_ENDIAN 1234
    728 
    729 #undef BYTE_ORDER
    730 #if WORDS_BIGENDIAN
    731 #define BYTE_ORDER BIG_ENDIAN
    732 #else
    733 #define BYTE_ORDER LITTLE_ENDIAN
    734 #endif
    735 
    736 #ifndef DEV_BSIZE
    737 #define DEV_BSIZE (1 << 9)
    738 #endif
    739 
    740 #undef MIN
    741 #undef MAX
    742 #define MIN(a,b) ((a) < (b) ? (a) : (b))
    743 #define MAX(a,b) ((a) > (b) ? (a) : (b))
    744 
    745 #ifndef MAXBSIZE
    746 #define MAXBSIZE (64 * 1024)
    747 #endif
    748 #ifndef MAXFRAG
    749 #define MAXFRAG 8
    750 #endif
    751 #ifndef MAXPHYS
    752 #define MAXPHYS (64 * 1024)
    753 #endif
    754 
    755 /* XXX needed by makefs; this should be done in a better way */
    756 #undef btodb
    757 #define btodb(x) ((x) << 9)
    758 
    759 #undef setbit
    760 #undef clrbit
    761 #undef isset
    762 #undef isclr
    763 #define	setbit(a,i)	((a)[(i)/NBBY] |= 1<<((i)%NBBY))
    764 #define	clrbit(a,i)	((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
    765 #define	isset(a,i)	((a)[(i)/NBBY] & (1<<((i)%NBBY)))
    766 #define	isclr(a,i)	(((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
    767 
    768 #ifndef powerof2
    769 #define powerof2(x) ((((x)-1)&(x))==0)
    770 #endif
    771 
    772 #undef roundup
    773 #define roundup(x, y)	((((x)+((y)-1))/(y))*(y))
    774 
    775 /* <sys/stat.h> */
    776 
    777 #ifndef ALLPERMS
    778 #define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
    779 #endif
    780 #ifndef DEFFILEMODE
    781 #define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
    782 #endif
    783 #ifndef S_ISTXT
    784 #ifdef S_ISVTX
    785 #define S_ISTXT S_ISVTX
    786 #else
    787 #define S_ISTXT 0
    788 #endif
    789 #endif
    790 
    791 /* Protected by _NETBSD_SOURCE otherwise. */
    792 #if HAVE_STRUCT_STAT_ST_FLAGS && defined(__NetBSD__)
    793 #define UF_SETTABLE     0x0000ffff
    794 #define UF_NODUMP       0x00000001
    795 #define UF_IMMUTABLE    0x00000002
    796 #define UF_APPEND       0x00000004
    797 #define UF_OPAQUE       0x00000008
    798 #define SF_SETTABLE     0xffff0000
    799 #define SF_ARCHIVED     0x00010000
    800 #define SF_IMMUTABLE    0x00020000
    801 #define SF_APPEND       0x00040000
    802 #endif
    803 
    804 /* <sys/syslimits.h> */
    805 
    806 #ifndef LINE_MAX
    807 #define LINE_MAX 2048
    808 #endif
    809 
    810 /* <sys/time.h> */
    811 
    812 #ifndef timercmp
    813 #define	timercmp(tvp, uvp, cmp)						\
    814 	(((tvp)->tv_sec == (uvp)->tv_sec) ?				\
    815 	    ((tvp)->tv_usec cmp (uvp)->tv_usec) :			\
    816 	    ((tvp)->tv_sec cmp (uvp)->tv_sec))
    817 #endif
    818 #ifndef timeradd
    819 #define	timeradd(tvp, uvp, vvp)						\
    820 	do {								\
    821 		(vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;		\
    822 		(vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;	\
    823 		if ((vvp)->tv_usec >= 1000000) {			\
    824 			(vvp)->tv_sec++;				\
    825 			(vvp)->tv_usec -= 1000000;			\
    826 		}							\
    827 	} while (/* CONSTCOND */ 0)
    828 #endif
    829 #ifndef timersub
    830 #define	timersub(tvp, uvp, vvp)						\
    831 	do {								\
    832 		(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;		\
    833 		(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;	\
    834 		if ((vvp)->tv_usec < 0) {				\
    835 			(vvp)->tv_sec--;				\
    836 			(vvp)->tv_usec += 1000000;			\
    837 		}							\
    838 	} while (/* CONSTCOND */ 0)
    839 #endif
    840 
    841 /* <sys/types.h> */
    842 
    843 #ifdef major
    844 #undef major
    845 #endif
    846 #define major(x)        ((int32_t)((((x) & 0x000fff00) >>  8)))
    847 
    848 #ifdef minor
    849 #undef minor
    850 #endif
    851 #define minor(x)        ((int32_t)((((x) & 0xfff00000) >> 12) | \
    852                                    (((x) & 0x000000ff) >>  0)))
    853 #ifdef makedev
    854 #undef makedev
    855 #endif
    856 #define makedev(x,y)    ((dev_t)((((x) <<  8) & 0x000fff00) | \
    857 			(((y) << 12) & 0xfff00000) | \
    858 			(((y) <<  0) & 0x000000ff)))
    859 #ifndef NBBY
    860 #define NBBY 8
    861 #endif
    862 
    863 #if !HAVE_U_QUAD_T
    864 /* #define, not typedef, as quad_t exists as a struct on some systems */
    865 #define quad_t long long
    866 #define u_quad_t unsigned long long
    867 #define strtoq strtoll
    868 #define strtouq strtoull
    869 #endif
    870 
    871 /* Has quad_t but these prototypes don't get pulled into scope. w/o we lose */
    872 #ifdef __NetBSD__
    873 quad_t   strtoq __P((const char *, char **, int));
    874 u_quad_t strtouq __P((const char *, char **, int));
    875 #endif
    876 
    877 #endif	/* !__NETBSD_COMPAT_DEFS_H__ */
    878