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      1 /*
      2  * Copyright (c) 1999-2003 Damien Miller.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     15  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     16  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     19  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     20  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23  */
     24 
     25 #ifndef _DEFINES_H
     26 #define _DEFINES_H
     27 
     28 /* $Id: defines.h,v 1.183 2014/09/02 19:33:26 djm Exp $ */
     29 
     30 
     31 /* Constants */
     32 
     33 #if defined(HAVE_DECL_SHUT_RD) && HAVE_DECL_SHUT_RD == 0
     34 enum
     35 {
     36   SHUT_RD = 0,		/* No more receptions.  */
     37   SHUT_WR,			/* No more transmissions.  */
     38   SHUT_RDWR			/* No more receptions or transmissions.  */
     39 };
     40 # define SHUT_RD   SHUT_RD
     41 # define SHUT_WR   SHUT_WR
     42 # define SHUT_RDWR SHUT_RDWR
     43 #endif
     44 
     45 /*
     46  * Definitions for IP type of service (ip_tos)
     47  */
     48 #include <netinet/in_systm.h>
     49 #include <netinet/ip.h>
     50 #ifndef IPTOS_LOWDELAY
     51 # define IPTOS_LOWDELAY          0x10
     52 # define IPTOS_THROUGHPUT        0x08
     53 # define IPTOS_RELIABILITY       0x04
     54 # define IPTOS_LOWCOST           0x02
     55 # define IPTOS_MINCOST           IPTOS_LOWCOST
     56 #endif /* IPTOS_LOWDELAY */
     57 
     58 /*
     59  * Definitions for DiffServ Codepoints as per RFC2474
     60  */
     61 #ifndef IPTOS_DSCP_AF11
     62 # define	IPTOS_DSCP_AF11		0x28
     63 # define	IPTOS_DSCP_AF12		0x30
     64 # define	IPTOS_DSCP_AF13		0x38
     65 # define	IPTOS_DSCP_AF21		0x48
     66 # define	IPTOS_DSCP_AF22		0x50
     67 # define	IPTOS_DSCP_AF23		0x58
     68 # define	IPTOS_DSCP_AF31		0x68
     69 # define	IPTOS_DSCP_AF32		0x70
     70 # define	IPTOS_DSCP_AF33		0x78
     71 # define	IPTOS_DSCP_AF41		0x88
     72 # define	IPTOS_DSCP_AF42		0x90
     73 # define	IPTOS_DSCP_AF43		0x98
     74 # define	IPTOS_DSCP_EF		0xb8
     75 #endif /* IPTOS_DSCP_AF11 */
     76 #ifndef IPTOS_DSCP_CS0
     77 # define	IPTOS_DSCP_CS0		0x00
     78 # define	IPTOS_DSCP_CS1		0x20
     79 # define	IPTOS_DSCP_CS2		0x40
     80 # define	IPTOS_DSCP_CS3		0x60
     81 # define	IPTOS_DSCP_CS4		0x80
     82 # define	IPTOS_DSCP_CS5		0xa0
     83 # define	IPTOS_DSCP_CS6		0xc0
     84 # define	IPTOS_DSCP_CS7		0xe0
     85 #endif /* IPTOS_DSCP_CS0 */
     86 #ifndef IPTOS_DSCP_EF
     87 # define	IPTOS_DSCP_EF		0xb8
     88 #endif /* IPTOS_DSCP_EF */
     89 
     90 #ifndef PATH_MAX
     91 # ifdef _POSIX_PATH_MAX
     92 # define PATH_MAX _POSIX_PATH_MAX
     93 # endif
     94 #endif
     95 
     96 #ifndef MAXPATHLEN
     97 # ifdef PATH_MAX
     98 #  define MAXPATHLEN PATH_MAX
     99 # else /* PATH_MAX */
    100 #  define MAXPATHLEN 64
    101 /* realpath uses a fixed buffer of size MAXPATHLEN, so force use of ours */
    102 #  ifndef BROKEN_REALPATH
    103 #   define BROKEN_REALPATH 1
    104 #  endif /* BROKEN_REALPATH */
    105 # endif /* PATH_MAX */
    106 #endif /* MAXPATHLEN */
    107 
    108 #ifndef HOST_NAME_MAX
    109 # include "netdb.h" /* for MAXHOSTNAMELEN */
    110 # if defined(_POSIX_HOST_NAME_MAX)
    111 #  define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
    112 # elif defined(MAXHOSTNAMELEN)
    113 #  define HOST_NAME_MAX MAXHOSTNAMELEN
    114 # else
    115 #  define HOST_NAME_MAX	255
    116 # endif
    117 #endif /* HOST_NAME_MAX */
    118 
    119 #if defined(HAVE_DECL_MAXSYMLINKS) && HAVE_DECL_MAXSYMLINKS == 0
    120 # define MAXSYMLINKS 5
    121 #endif
    122 
    123 #ifndef STDIN_FILENO
    124 # define STDIN_FILENO    0
    125 #endif
    126 #ifndef STDOUT_FILENO
    127 # define STDOUT_FILENO   1
    128 #endif
    129 #ifndef STDERR_FILENO
    130 # define STDERR_FILENO   2
    131 #endif
    132 
    133 #ifndef NGROUPS_MAX	/* Disable groupaccess if NGROUP_MAX is not set */
    134 #ifdef NGROUPS
    135 #define NGROUPS_MAX NGROUPS
    136 #else
    137 #define NGROUPS_MAX 0
    138 #endif
    139 #endif
    140 
    141 #if defined(HAVE_DECL_O_NONBLOCK) && HAVE_DECL_O_NONBLOCK == 0
    142 # define O_NONBLOCK      00004	/* Non Blocking Open */
    143 #endif
    144 
    145 #ifndef S_IFSOCK
    146 # define S_IFSOCK 0
    147 #endif /* S_IFSOCK */
    148 
    149 #ifndef S_ISDIR
    150 # define S_ISDIR(mode)	(((mode) & (_S_IFMT)) == (_S_IFDIR))
    151 #endif /* S_ISDIR */
    152 
    153 #ifndef S_ISREG
    154 # define S_ISREG(mode)	(((mode) & (_S_IFMT)) == (_S_IFREG))
    155 #endif /* S_ISREG */
    156 
    157 #ifndef S_ISLNK
    158 # define S_ISLNK(mode)	(((mode) & S_IFMT) == S_IFLNK)
    159 #endif /* S_ISLNK */
    160 
    161 #ifndef S_IXUSR
    162 # define S_IXUSR			0000100	/* execute/search permission, */
    163 # define S_IXGRP			0000010	/* execute/search permission, */
    164 # define S_IXOTH			0000001	/* execute/search permission, */
    165 # define _S_IWUSR			0000200	/* write permission, */
    166 # define S_IWUSR			_S_IWUSR	/* write permission, owner */
    167 # define S_IWGRP			0000020	/* write permission, group */
    168 # define S_IWOTH			0000002	/* write permission, other */
    169 # define S_IRUSR			0000400	/* read permission, owner */
    170 # define S_IRGRP			0000040	/* read permission, group */
    171 # define S_IROTH			0000004	/* read permission, other */
    172 # define S_IRWXU			0000700	/* read, write, execute */
    173 # define S_IRWXG			0000070	/* read, write, execute */
    174 # define S_IRWXO			0000007	/* read, write, execute */
    175 #endif /* S_IXUSR */
    176 
    177 #if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
    178 #define MAP_ANON MAP_ANONYMOUS
    179 #endif
    180 
    181 #ifndef MAP_FAILED
    182 # define MAP_FAILED ((void *)-1)
    183 #endif
    184 
    185 /*
    186 SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but
    187 including rpc/rpc.h breaks Solaris 6
    188 */
    189 #ifndef INADDR_LOOPBACK
    190 #define INADDR_LOOPBACK ((u_long)0x7f000001)
    191 #endif
    192 
    193 /* Types */
    194 
    195 /* If sys/types.h does not supply intXX_t, supply them ourselves */
    196 /* (or die trying) */
    197 
    198 #ifndef HAVE_U_INT
    199 typedef unsigned int u_int;
    200 #endif
    201 
    202 #ifndef HAVE_INTXX_T
    203 typedef signed char int8_t;
    204 # if (SIZEOF_SHORT_INT == 2)
    205 typedef short int int16_t;
    206 # else
    207 #  ifdef _UNICOS
    208 #   if (SIZEOF_SHORT_INT == 4)
    209 typedef short int16_t;
    210 #   else
    211 typedef long  int16_t;
    212 #   endif
    213 #  else
    214 #   error "16 bit int type not found."
    215 #  endif /* _UNICOS */
    216 # endif
    217 # if (SIZEOF_INT == 4)
    218 typedef int int32_t;
    219 # else
    220 #  ifdef _UNICOS
    221 typedef long  int32_t;
    222 #  else
    223 #   error "32 bit int type not found."
    224 #  endif /* _UNICOS */
    225 # endif
    226 #endif
    227 
    228 /* If sys/types.h does not supply u_intXX_t, supply them ourselves */
    229 #ifndef HAVE_U_INTXX_T
    230 # ifdef HAVE_UINTXX_T
    231 typedef uint8_t u_int8_t;
    232 typedef uint16_t u_int16_t;
    233 typedef uint32_t u_int32_t;
    234 # define HAVE_U_INTXX_T 1
    235 # else
    236 typedef unsigned char u_int8_t;
    237 #  if (SIZEOF_SHORT_INT == 2)
    238 typedef unsigned short int u_int16_t;
    239 #  else
    240 #   ifdef _UNICOS
    241 #    if (SIZEOF_SHORT_INT == 4)
    242 typedef unsigned short u_int16_t;
    243 #    else
    244 typedef unsigned long  u_int16_t;
    245 #    endif
    246 #   else
    247 #    error "16 bit int type not found."
    248 #   endif
    249 #  endif
    250 #  if (SIZEOF_INT == 4)
    251 typedef unsigned int u_int32_t;
    252 #  else
    253 #   ifdef _UNICOS
    254 typedef unsigned long  u_int32_t;
    255 #   else
    256 #    error "32 bit int type not found."
    257 #   endif
    258 #  endif
    259 # endif
    260 #define __BIT_TYPES_DEFINED__
    261 #endif
    262 
    263 /* 64-bit types */
    264 #ifndef HAVE_INT64_T
    265 # if (SIZEOF_LONG_INT == 8)
    266 typedef long int int64_t;
    267 # else
    268 #  if (SIZEOF_LONG_LONG_INT == 8)
    269 typedef long long int int64_t;
    270 #  endif
    271 # endif
    272 #endif
    273 #ifndef HAVE_U_INT64_T
    274 # if (SIZEOF_LONG_INT == 8)
    275 typedef unsigned long int u_int64_t;
    276 # else
    277 #  if (SIZEOF_LONG_LONG_INT == 8)
    278 typedef unsigned long long int u_int64_t;
    279 #  endif
    280 # endif
    281 #endif
    282 
    283 #ifndef HAVE_UINTXX_T
    284 typedef u_int8_t uint8_t;
    285 typedef u_int16_t uint16_t;
    286 typedef u_int32_t uint32_t;
    287 typedef u_int64_t uint64_t;
    288 #endif
    289 
    290 #ifndef HAVE_INTMAX_T
    291 typedef long long intmax_t;
    292 #endif
    293 
    294 #ifndef HAVE_UINTMAX_T
    295 typedef unsigned long long uintmax_t;
    296 #endif
    297 
    298 #ifndef HAVE_U_CHAR
    299 typedef unsigned char u_char;
    300 # define HAVE_U_CHAR
    301 #endif /* HAVE_U_CHAR */
    302 
    303 #ifndef ULLONG_MAX
    304 # define ULLONG_MAX ((unsigned long long)-1)
    305 #endif
    306 
    307 #ifndef SIZE_T_MAX
    308 #define SIZE_T_MAX ULONG_MAX
    309 #endif /* SIZE_T_MAX */
    310 
    311 #ifndef HAVE_SIZE_T
    312 typedef unsigned int size_t;
    313 # define HAVE_SIZE_T
    314 # define SIZE_T_MAX UINT_MAX
    315 #endif /* HAVE_SIZE_T */
    316 
    317 #ifndef SIZE_MAX
    318 #define SIZE_MAX SIZE_T_MAX
    319 #endif
    320 
    321 #ifndef HAVE_SSIZE_T
    322 typedef int ssize_t;
    323 # define HAVE_SSIZE_T
    324 #endif /* HAVE_SSIZE_T */
    325 
    326 #ifndef HAVE_CLOCK_T
    327 typedef long clock_t;
    328 # define HAVE_CLOCK_T
    329 #endif /* HAVE_CLOCK_T */
    330 
    331 #ifndef HAVE_SA_FAMILY_T
    332 typedef int sa_family_t;
    333 # define HAVE_SA_FAMILY_T
    334 #endif /* HAVE_SA_FAMILY_T */
    335 
    336 #ifndef HAVE_PID_T
    337 typedef int pid_t;
    338 # define HAVE_PID_T
    339 #endif /* HAVE_PID_T */
    340 
    341 #ifndef HAVE_SIG_ATOMIC_T
    342 typedef int sig_atomic_t;
    343 # define HAVE_SIG_ATOMIC_T
    344 #endif /* HAVE_SIG_ATOMIC_T */
    345 
    346 #ifndef HAVE_MODE_T
    347 typedef int mode_t;
    348 # define HAVE_MODE_T
    349 #endif /* HAVE_MODE_T */
    350 
    351 #if !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE___SS_FAMILY_IN_SS)
    352 # define ss_family __ss_family
    353 #endif /* !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE_SA_FAMILY_IN_SS) */
    354 
    355 #ifndef HAVE_SYS_UN_H
    356 struct	sockaddr_un {
    357 	short	sun_family;		/* AF_UNIX */
    358 	char	sun_path[108];		/* path name (gag) */
    359 };
    360 #endif /* HAVE_SYS_UN_H */
    361 
    362 #ifndef HAVE_IN_ADDR_T
    363 typedef u_int32_t	in_addr_t;
    364 #endif
    365 #ifndef HAVE_IN_PORT_T
    366 typedef u_int16_t	in_port_t;
    367 #endif
    368 
    369 #if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE)
    370 #define _STRUCT_WINSIZE
    371 struct winsize {
    372       unsigned short ws_row;          /* rows, in characters */
    373       unsigned short ws_col;          /* columns, in character */
    374       unsigned short ws_xpixel;       /* horizontal size, pixels */
    375       unsigned short ws_ypixel;       /* vertical size, pixels */
    376 };
    377 #endif
    378 
    379 /* bits needed for select that may not be in the system headers */
    380 #ifndef HAVE_FD_MASK
    381  typedef unsigned long int	fd_mask;
    382 #endif
    383 
    384 #if defined(HAVE_DECL_NFDBITS) && HAVE_DECL_NFDBITS == 0
    385 # define	NFDBITS (8 * sizeof(unsigned long))
    386 #endif
    387 
    388 #if defined(HAVE_DECL_HOWMANY) && HAVE_DECL_HOWMANY == 0
    389 # define howmany(x,y)	(((x)+((y)-1))/(y))
    390 #endif
    391 
    392 /* Paths */
    393 
    394 #ifndef _PATH_BSHELL
    395 # define _PATH_BSHELL "/bin/sh"
    396 #endif
    397 
    398 #ifdef USER_PATH
    399 # ifdef _PATH_STDPATH
    400 #  undef _PATH_STDPATH
    401 # endif
    402 # define _PATH_STDPATH USER_PATH
    403 #endif
    404 
    405 #ifndef _PATH_STDPATH
    406 # define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
    407 #endif
    408 
    409 #ifndef SUPERUSER_PATH
    410 # define SUPERUSER_PATH	_PATH_STDPATH
    411 #endif
    412 
    413 #ifndef _PATH_DEVNULL
    414 # define _PATH_DEVNULL "/dev/null"
    415 #endif
    416 
    417 /* user may have set a different path */
    418 #if defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY)
    419 # undef _PATH_MAILDIR
    420 #endif /* defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY) */
    421 
    422 #ifdef MAIL_DIRECTORY
    423 # define _PATH_MAILDIR MAIL_DIRECTORY
    424 #endif
    425 
    426 #ifndef _PATH_NOLOGIN
    427 # define _PATH_NOLOGIN "/etc/nologin"
    428 #endif
    429 
    430 /* Define this to be the path of the xauth program. */
    431 #ifdef XAUTH_PATH
    432 #define _PATH_XAUTH XAUTH_PATH
    433 #endif /* XAUTH_PATH */
    434 
    435 /* derived from XF4/xc/lib/dps/Xlibnet.h */
    436 #ifndef X_UNIX_PATH
    437 #  ifdef __hpux
    438 #    define X_UNIX_PATH "/var/spool/sockets/X11/%u"
    439 #  else
    440 #    define X_UNIX_PATH "/tmp/.X11-unix/X%u"
    441 #  endif
    442 #endif /* X_UNIX_PATH */
    443 #define _PATH_UNIX_X X_UNIX_PATH
    444 
    445 #ifndef _PATH_TTY
    446 # define _PATH_TTY "/dev/tty"
    447 #endif
    448 
    449 /* Macros */
    450 
    451 #if defined(HAVE_LOGIN_GETCAPBOOL) && defined(HAVE_LOGIN_CAP_H)
    452 # define HAVE_LOGIN_CAP
    453 #endif
    454 
    455 #ifndef MAX
    456 # define MAX(a,b) (((a)>(b))?(a):(b))
    457 # define MIN(a,b) (((a)<(b))?(a):(b))
    458 #endif
    459 
    460 #ifndef roundup
    461 # define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
    462 #endif
    463 
    464 #ifndef timersub
    465 #define timersub(a, b, result)					\
    466    do {								\
    467       (result)->tv_sec = (a)->tv_sec - (b)->tv_sec;		\
    468       (result)->tv_usec = (a)->tv_usec - (b)->tv_usec;		\
    469       if ((result)->tv_usec < 0) {				\
    470 	 --(result)->tv_sec;					\
    471 	 (result)->tv_usec += 1000000;				\
    472       }								\
    473    } while (0)
    474 #endif
    475 
    476 #ifndef TIMEVAL_TO_TIMESPEC
    477 #define	TIMEVAL_TO_TIMESPEC(tv, ts) {					\
    478 	(ts)->tv_sec = (tv)->tv_sec;					\
    479 	(ts)->tv_nsec = (tv)->tv_usec * 1000;				\
    480 }
    481 #endif
    482 
    483 #ifndef TIMESPEC_TO_TIMEVAL
    484 #define	TIMESPEC_TO_TIMEVAL(tv, ts) {					\
    485 	(tv)->tv_sec = (ts)->tv_sec;					\
    486 	(tv)->tv_usec = (ts)->tv_nsec / 1000;				\
    487 }
    488 #endif
    489 
    490 #ifndef __P
    491 # define __P(x) x
    492 #endif
    493 
    494 #if !defined(IN6_IS_ADDR_V4MAPPED)
    495 # define IN6_IS_ADDR_V4MAPPED(a) \
    496 	((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \
    497 	 (((u_int32_t *) (a))[2] == htonl (0xffff)))
    498 #endif /* !defined(IN6_IS_ADDR_V4MAPPED) */
    499 
    500 #if !defined(__GNUC__) || (__GNUC__ < 2)
    501 # define __attribute__(x)
    502 #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
    503 
    504 #if !defined(HAVE_ATTRIBUTE__SENTINEL__) && !defined(__sentinel__)
    505 # define __sentinel__
    506 #endif
    507 
    508 #if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__bounded__)
    509 # define __bounded__(x, y, z)
    510 #endif
    511 
    512 #if !defined(HAVE_ATTRIBUTE__NONNULL__) && !defined(__nonnull__)
    513 # define __nonnull__(x)
    514 #endif
    515 
    516 #ifndef OSSH_ALIGNBYTES
    517 #define OSSH_ALIGNBYTES	(sizeof(int) - 1)
    518 #endif
    519 #ifndef __CMSG_ALIGN
    520 #define	__CMSG_ALIGN(p) (((u_int)(p) + OSSH_ALIGNBYTES) &~ OSSH_ALIGNBYTES)
    521 #endif
    522 
    523 /* Length of the contents of a control message of length len */
    524 #ifndef CMSG_LEN
    525 #define	CMSG_LEN(len)	(__CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
    526 #endif
    527 
    528 /* Length of the space taken up by a padded control message of length len */
    529 #ifndef CMSG_SPACE
    530 #define	CMSG_SPACE(len)	(__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(len))
    531 #endif
    532 
    533 /* given pointer to struct cmsghdr, return pointer to data */
    534 #ifndef CMSG_DATA
    535 #define CMSG_DATA(cmsg) ((u_char *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
    536 #endif /* CMSG_DATA */
    537 
    538 /*
    539  * RFC 2292 requires to check msg_controllen, in case that the kernel returns
    540  * an empty list for some reasons.
    541  */
    542 #ifndef CMSG_FIRSTHDR
    543 #define CMSG_FIRSTHDR(mhdr) \
    544 	((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
    545 	 (struct cmsghdr *)(mhdr)->msg_control : \
    546 	 (struct cmsghdr *)NULL)
    547 #endif /* CMSG_FIRSTHDR */
    548 
    549 #if defined(HAVE_DECL_OFFSETOF) && HAVE_DECL_OFFSETOF == 0
    550 # define offsetof(type, member) ((size_t) &((type *)0)->member)
    551 #endif
    552 
    553 /* Set up BSD-style BYTE_ORDER definition if it isn't there already */
    554 /* XXX: doesn't try to cope with strange byte orders (PDP_ENDIAN) */
    555 #ifndef BYTE_ORDER
    556 # ifndef LITTLE_ENDIAN
    557 #  define LITTLE_ENDIAN  1234
    558 # endif /* LITTLE_ENDIAN */
    559 # ifndef BIG_ENDIAN
    560 #  define BIG_ENDIAN     4321
    561 # endif /* BIG_ENDIAN */
    562 # ifdef WORDS_BIGENDIAN
    563 #  define BYTE_ORDER BIG_ENDIAN
    564 # else /* WORDS_BIGENDIAN */
    565 #  define BYTE_ORDER LITTLE_ENDIAN
    566 # endif /* WORDS_BIGENDIAN */
    567 #endif /* BYTE_ORDER */
    568 
    569 /* Function replacement / compatibility hacks */
    570 
    571 #if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO))
    572 # define HAVE_GETADDRINFO
    573 #endif
    574 
    575 #ifndef HAVE_GETOPT_OPTRESET
    576 # undef getopt
    577 # undef opterr
    578 # undef optind
    579 # undef optopt
    580 # undef optreset
    581 # undef optarg
    582 # define getopt(ac, av, o)  BSDgetopt(ac, av, o)
    583 # define opterr             BSDopterr
    584 # define optind             BSDoptind
    585 # define optopt             BSDoptopt
    586 # define optreset           BSDoptreset
    587 # define optarg             BSDoptarg
    588 #endif
    589 
    590 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO)
    591 # undef HAVE_GETADDRINFO
    592 #endif
    593 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_FREEADDRINFO)
    594 # undef HAVE_FREEADDRINFO
    595 #endif
    596 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GAI_STRERROR)
    597 # undef HAVE_GAI_STRERROR
    598 #endif
    599 
    600 #if defined(HAVE_GETADDRINFO)
    601 # if defined(HAVE_DECL_AI_NUMERICSERV) && HAVE_DECL_AI_NUMERICSERV == 0
    602 #   define AI_NUMERICSERV	0
    603 # endif
    604 #endif
    605 
    606 #if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX)
    607 # undef HAVE_UPDWTMPX
    608 #endif
    609 
    610 #if defined(BROKEN_SHADOW_EXPIRE) && defined(HAS_SHADOW_EXPIRE)
    611 # undef HAS_SHADOW_EXPIRE
    612 #endif
    613 
    614 #if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT) && \
    615     defined(SYSLOG_R_SAFE_IN_SIGHAND)
    616 # define DO_LOG_SAFE_IN_SIGHAND
    617 #endif
    618 
    619 #if !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY)
    620 # define memmove(s1, s2, n) bcopy((s2), (s1), (n))
    621 #endif /* !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY) */
    622 
    623 #ifndef GETPGRP_VOID
    624 # include <unistd.h>
    625 # define getpgrp() getpgrp(0)
    626 #endif
    627 
    628 #ifdef USE_BSM_AUDIT
    629 # define SSH_AUDIT_EVENTS
    630 # define CUSTOM_SSH_AUDIT_EVENTS
    631 #endif
    632 
    633 #ifdef USE_LINUX_AUDIT
    634 # define SSH_AUDIT_EVENTS
    635 # define CUSTOM_SSH_AUDIT_EVENTS
    636 #endif
    637 
    638 #if !defined(HAVE___func__) && defined(HAVE___FUNCTION__)
    639 #  define __func__ __FUNCTION__
    640 #elif !defined(HAVE___func__)
    641 #  define __func__ ""
    642 #endif
    643 
    644 #if defined(KRB5) && !defined(HEIMDAL)
    645 #  define krb5_get_err_text(context,code) error_message(code)
    646 #endif
    647 
    648 #if defined(SKEYCHALLENGE_4ARG)
    649 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c,d)
    650 #else
    651 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c)
    652 #endif
    653 
    654 /* Maximum number of file descriptors available */
    655 #ifdef HAVE_SYSCONF
    656 # define SSH_SYSFDMAX sysconf(_SC_OPEN_MAX)
    657 #else
    658 # define SSH_SYSFDMAX 10000
    659 #endif
    660 
    661 #ifdef FSID_HAS_VAL
    662 /* encode f_fsid into a 64 bit value  */
    663 #define FSID_TO_ULONG(f) \
    664 	((((u_int64_t)(f).val[0] & 0xffffffffUL) << 32) | \
    665 	    ((f).val[1] & 0xffffffffUL))
    666 #elif defined(FSID_HAS___VAL)
    667 #define FSID_TO_ULONG(f) \
    668 	((((u_int64_t)(f).__val[0] & 0xffffffffUL) << 32) | \
    669 	    ((f).__val[1] & 0xffffffffUL))
    670 #else
    671 # define FSID_TO_ULONG(f) ((f))
    672 #endif
    673 
    674 #if defined(__Lynx__)
    675  /*
    676   * LynxOS defines these in param.h which we do not want to include since
    677   * it will also pull in a bunch of kernel definitions.
    678   */
    679 # define ALIGNBYTES (sizeof(int) - 1)
    680 # define ALIGN(p) (((unsigned)p + ALIGNBYTES) & ~ALIGNBYTES)
    681   /* Missing prototypes on LynxOS */
    682   int snprintf (char *, size_t, const char *, ...);
    683   int mkstemp (char *);
    684   char *crypt (const char *, const char *);
    685   int seteuid (uid_t);
    686   int setegid (gid_t);
    687   char *mkdtemp (char *);
    688   int rresvport_af (int *, sa_family_t);
    689   int innetgr (const char *, const char *, const char *, const char *);
    690 #endif
    691 
    692 /*
    693  * Define this to use pipes instead of socketpairs for communicating with the
    694  * client program.  Socketpairs do not seem to work on all systems.
    695  *
    696  * configure.ac sets this for a few OS's which are known to have problems
    697  * but you may need to set it yourself
    698  */
    699 /* #define USE_PIPES 1 */
    700 
    701 /**
    702  ** login recorder definitions
    703  **/
    704 
    705 /* FIXME: put default paths back in */
    706 #ifndef UTMP_FILE
    707 #  ifdef _PATH_UTMP
    708 #    define UTMP_FILE _PATH_UTMP
    709 #  else
    710 #    ifdef CONF_UTMP_FILE
    711 #      define UTMP_FILE CONF_UTMP_FILE
    712 #    endif
    713 #  endif
    714 #endif
    715 #ifndef WTMP_FILE
    716 #  ifdef _PATH_WTMP
    717 #    define WTMP_FILE _PATH_WTMP
    718 #  else
    719 #    ifdef CONF_WTMP_FILE
    720 #      define WTMP_FILE CONF_WTMP_FILE
    721 #    endif
    722 #  endif
    723 #endif
    724 /* pick up the user's location for lastlog if given */
    725 #ifndef LASTLOG_FILE
    726 #  ifdef _PATH_LASTLOG
    727 #    define LASTLOG_FILE _PATH_LASTLOG
    728 #  else
    729 #    ifdef CONF_LASTLOG_FILE
    730 #      define LASTLOG_FILE CONF_LASTLOG_FILE
    731 #    endif
    732 #  endif
    733 #endif
    734 
    735 #if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
    736 # define USE_SHADOW
    737 #endif
    738 
    739 /* The login() library function in libutil is first choice */
    740 #if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN)
    741 #  define USE_LOGIN
    742 
    743 #else
    744 /* Simply select your favourite login types. */
    745 /* Can't do if-else because some systems use several... <sigh> */
    746 #  if !defined(DISABLE_UTMPX)
    747 #    define USE_UTMPX
    748 #  endif
    749 #  if defined(UTMP_FILE) && !defined(DISABLE_UTMP)
    750 #    define USE_UTMP
    751 #  endif
    752 #  if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX)
    753 #    define USE_WTMPX
    754 #  endif
    755 #  if defined(WTMP_FILE) && !defined(DISABLE_WTMP)
    756 #    define USE_WTMP
    757 #  endif
    758 
    759 #endif
    760 
    761 #ifndef UT_LINESIZE
    762 # define UT_LINESIZE 8
    763 #endif
    764 
    765 /* I hope that the presence of LASTLOG_FILE is enough to detect this */
    766 #if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG)
    767 #  define USE_LASTLOG
    768 #endif
    769 
    770 #ifdef HAVE_OSF_SIA
    771 # ifdef USE_SHADOW
    772 #  undef USE_SHADOW
    773 # endif
    774 # define CUSTOM_SYS_AUTH_PASSWD 1
    775 #endif
    776 
    777 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(HAVE_SECUREWARE)
    778 # define CUSTOM_SYS_AUTH_PASSWD 1
    779 #endif
    780 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(BROKEN_LIBIAF)
    781 # define USE_LIBIAF
    782 #endif
    783 
    784 /* HP-UX 11.11 */
    785 #ifdef BTMP_FILE
    786 # define _PATH_BTMP BTMP_FILE
    787 #endif
    788 
    789 #if defined(USE_BTMP) && defined(_PATH_BTMP)
    790 # define CUSTOM_FAILED_LOGIN
    791 #endif
    792 
    793 /** end of login recorder definitions */
    794 
    795 #ifdef BROKEN_GETGROUPS
    796 # define getgroups(a,b) ((a)==0 && (b)==NULL ? NGROUPS_MAX : getgroups((a),(b)))
    797 #endif
    798 
    799 #if defined(HAVE_MMAP) && defined(BROKEN_MMAP)
    800 # undef HAVE_MMAP
    801 #endif
    802 
    803 #ifndef IOV_MAX
    804 # if defined(_XOPEN_IOV_MAX)
    805 #  define	IOV_MAX		_XOPEN_IOV_MAX
    806 # elif defined(DEF_IOV_MAX)
    807 #  define	IOV_MAX		DEF_IOV_MAX
    808 # else
    809 #  define	IOV_MAX		16
    810 # endif
    811 #endif
    812 
    813 #ifndef EWOULDBLOCK
    814 # define EWOULDBLOCK EAGAIN
    815 #endif
    816 
    817 #ifndef INET6_ADDRSTRLEN	/* for non IPv6 machines */
    818 #define INET6_ADDRSTRLEN 46
    819 #endif
    820 
    821 #ifndef SSH_IOBUFSZ
    822 # define SSH_IOBUFSZ 8192
    823 #endif
    824 
    825 /*
    826  * Platforms that have arc4random_uniform() and not arc4random_stir()
    827  * shouldn't need the latter.
    828  */
    829 #if defined(HAVE_ARC4RANDOM) && defined(HAVE_ARC4RANDOM_UNIFORM) && \
    830     !defined(HAVE_ARC4RANDOM_STIR)
    831 # define arc4random_stir()
    832 #endif
    833 
    834 #ifndef HAVE_VA_COPY
    835 # ifdef HAVE___VA_COPY
    836 #  define va_copy(dest, src) __va_copy(dest, src)
    837 # else
    838 #  define va_copy(dest, src) (dest) = (src)
    839 # endif
    840 #endif
    841 
    842 #ifndef __predict_true
    843 # if defined(__GNUC__) && \
    844      ((__GNUC__ > (2)) || (__GNUC__ == (2) && __GNUC_MINOR__ >= (96)))
    845 #  define __predict_true(exp)     __builtin_expect(((exp) != 0), 1)
    846 #  define __predict_false(exp)    __builtin_expect(((exp) != 0), 0)
    847 # else
    848 #  define __predict_true(exp)     ((exp) != 0)
    849 #  define __predict_false(exp)    ((exp) != 0)
    850 # endif /* gcc version */
    851 #endif /* __predict_true */
    852 
    853 #endif /* _DEFINES_H */
    854