Home | History | Annotate | Download | only in openssh
      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 /* Constants */
     29 
     30 #if defined(HAVE_DECL_SHUT_RD) && HAVE_DECL_SHUT_RD == 0
     31 enum
     32 {
     33   SHUT_RD = 0,		/* No more receptions.  */
     34   SHUT_WR,			/* No more transmissions.  */
     35   SHUT_RDWR			/* No more receptions or transmissions.  */
     36 };
     37 # define SHUT_RD   SHUT_RD
     38 # define SHUT_WR   SHUT_WR
     39 # define SHUT_RDWR SHUT_RDWR
     40 #endif
     41 
     42 /*
     43  * Cygwin doesn't really have a notion of reserved ports.  It is still
     44  * is useful on the client side so for compatibility it defines as 1024 via
     45  * netinet/in.h inside an enum.  We * don't actually want that restriction
     46  * so we want to set that to zero, but we can't do it direct in config.h
     47  * because it'll cause a conflicting definition the first time we include
     48  * netinet/in.h.
     49  */
     50 
     51 #ifdef HAVE_CYGWIN
     52 #define IPPORT_RESERVED 0
     53 #endif
     54 
     55 /*
     56  * Definitions for IP type of service (ip_tos)
     57  */
     58 #include <netinet/in_systm.h>
     59 #include <netinet/ip.h>
     60 #ifndef IPTOS_LOWDELAY
     61 # define IPTOS_LOWDELAY          0x10
     62 # define IPTOS_THROUGHPUT        0x08
     63 # define IPTOS_RELIABILITY       0x04
     64 # define IPTOS_LOWCOST           0x02
     65 # define IPTOS_MINCOST           IPTOS_LOWCOST
     66 #endif /* IPTOS_LOWDELAY */
     67 
     68 /*
     69  * Definitions for DiffServ Codepoints as per RFC2474
     70  */
     71 #ifndef IPTOS_DSCP_AF11
     72 # define	IPTOS_DSCP_AF11		0x28
     73 # define	IPTOS_DSCP_AF12		0x30
     74 # define	IPTOS_DSCP_AF13		0x38
     75 # define	IPTOS_DSCP_AF21		0x48
     76 # define	IPTOS_DSCP_AF22		0x50
     77 # define	IPTOS_DSCP_AF23		0x58
     78 # define	IPTOS_DSCP_AF31		0x68
     79 # define	IPTOS_DSCP_AF32		0x70
     80 # define	IPTOS_DSCP_AF33		0x78
     81 # define	IPTOS_DSCP_AF41		0x88
     82 # define	IPTOS_DSCP_AF42		0x90
     83 # define	IPTOS_DSCP_AF43		0x98
     84 # define	IPTOS_DSCP_EF		0xb8
     85 #endif /* IPTOS_DSCP_AF11 */
     86 #ifndef IPTOS_DSCP_CS0
     87 # define	IPTOS_DSCP_CS0		0x00
     88 # define	IPTOS_DSCP_CS1		0x20
     89 # define	IPTOS_DSCP_CS2		0x40
     90 # define	IPTOS_DSCP_CS3		0x60
     91 # define	IPTOS_DSCP_CS4		0x80
     92 # define	IPTOS_DSCP_CS5		0xa0
     93 # define	IPTOS_DSCP_CS6		0xc0
     94 # define	IPTOS_DSCP_CS7		0xe0
     95 #endif /* IPTOS_DSCP_CS0 */
     96 #ifndef IPTOS_DSCP_EF
     97 # define	IPTOS_DSCP_EF		0xb8
     98 #endif /* IPTOS_DSCP_EF */
     99 
    100 #ifndef PATH_MAX
    101 # ifdef _POSIX_PATH_MAX
    102 # define PATH_MAX _POSIX_PATH_MAX
    103 # endif
    104 #endif
    105 
    106 #ifndef MAXPATHLEN
    107 # ifdef PATH_MAX
    108 #  define MAXPATHLEN PATH_MAX
    109 # else /* PATH_MAX */
    110 #  define MAXPATHLEN 64
    111 /* realpath uses a fixed buffer of size MAXPATHLEN, so force use of ours */
    112 #  ifndef BROKEN_REALPATH
    113 #   define BROKEN_REALPATH 1
    114 #  endif /* BROKEN_REALPATH */
    115 # endif /* PATH_MAX */
    116 #endif /* MAXPATHLEN */
    117 
    118 #ifndef HOST_NAME_MAX
    119 # include "netdb.h" /* for MAXHOSTNAMELEN */
    120 # if defined(_POSIX_HOST_NAME_MAX)
    121 #  define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
    122 # elif defined(MAXHOSTNAMELEN)
    123 #  define HOST_NAME_MAX MAXHOSTNAMELEN
    124 # else
    125 #  define HOST_NAME_MAX	255
    126 # endif
    127 #endif /* HOST_NAME_MAX */
    128 
    129 #if defined(HAVE_DECL_MAXSYMLINKS) && HAVE_DECL_MAXSYMLINKS == 0
    130 # define MAXSYMLINKS 5
    131 #endif
    132 
    133 #ifndef STDIN_FILENO
    134 # define STDIN_FILENO    0
    135 #endif
    136 #ifndef STDOUT_FILENO
    137 # define STDOUT_FILENO   1
    138 #endif
    139 #ifndef STDERR_FILENO
    140 # define STDERR_FILENO   2
    141 #endif
    142 
    143 #ifndef NGROUPS_MAX	/* Disable groupaccess if NGROUP_MAX is not set */
    144 #ifdef NGROUPS
    145 #define NGROUPS_MAX NGROUPS
    146 #else
    147 #define NGROUPS_MAX 0
    148 #endif
    149 #endif
    150 
    151 #if defined(HAVE_DECL_O_NONBLOCK) && HAVE_DECL_O_NONBLOCK == 0
    152 # define O_NONBLOCK      00004	/* Non Blocking Open */
    153 #endif
    154 
    155 #ifndef S_IFSOCK
    156 # define S_IFSOCK 0
    157 #endif /* S_IFSOCK */
    158 
    159 #ifndef S_ISDIR
    160 # define S_ISDIR(mode)	(((mode) & (_S_IFMT)) == (_S_IFDIR))
    161 #endif /* S_ISDIR */
    162 
    163 #ifndef S_ISREG
    164 # define S_ISREG(mode)	(((mode) & (_S_IFMT)) == (_S_IFREG))
    165 #endif /* S_ISREG */
    166 
    167 #ifndef S_ISLNK
    168 # define S_ISLNK(mode)	(((mode) & S_IFMT) == S_IFLNK)
    169 #endif /* S_ISLNK */
    170 
    171 #ifndef S_IXUSR
    172 # define S_IXUSR			0000100	/* execute/search permission, */
    173 # define S_IXGRP			0000010	/* execute/search permission, */
    174 # define S_IXOTH			0000001	/* execute/search permission, */
    175 # define _S_IWUSR			0000200	/* write permission, */
    176 # define S_IWUSR			_S_IWUSR	/* write permission, owner */
    177 # define S_IWGRP			0000020	/* write permission, group */
    178 # define S_IWOTH			0000002	/* write permission, other */
    179 # define S_IRUSR			0000400	/* read permission, owner */
    180 # define S_IRGRP			0000040	/* read permission, group */
    181 # define S_IROTH			0000004	/* read permission, other */
    182 # define S_IRWXU			0000700	/* read, write, execute */
    183 # define S_IRWXG			0000070	/* read, write, execute */
    184 # define S_IRWXO			0000007	/* read, write, execute */
    185 #endif /* S_IXUSR */
    186 
    187 #if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
    188 #define MAP_ANON MAP_ANONYMOUS
    189 #endif
    190 
    191 #ifndef MAP_FAILED
    192 # define MAP_FAILED ((void *)-1)
    193 #endif
    194 
    195 /*
    196 SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but
    197 including rpc/rpc.h breaks Solaris 6
    198 */
    199 #ifndef INADDR_LOOPBACK
    200 #define INADDR_LOOPBACK ((u_long)0x7f000001)
    201 #endif
    202 
    203 /* Types */
    204 
    205 /* If sys/types.h does not supply intXX_t, supply them ourselves */
    206 /* (or die trying) */
    207 
    208 #ifndef HAVE_U_INT
    209 typedef unsigned int u_int;
    210 #endif
    211 
    212 #ifndef HAVE_INTXX_T
    213 typedef signed char int8_t;
    214 # if (SIZEOF_SHORT_INT == 2)
    215 typedef short int int16_t;
    216 # else
    217 #  ifdef _UNICOS
    218 #   if (SIZEOF_SHORT_INT == 4)
    219 typedef short int16_t;
    220 #   else
    221 typedef long  int16_t;
    222 #   endif
    223 #  else
    224 #   error "16 bit int type not found."
    225 #  endif /* _UNICOS */
    226 # endif
    227 # if (SIZEOF_INT == 4)
    228 typedef int int32_t;
    229 # else
    230 #  ifdef _UNICOS
    231 typedef long  int32_t;
    232 #  else
    233 #   error "32 bit int type not found."
    234 #  endif /* _UNICOS */
    235 # endif
    236 #endif
    237 
    238 /* If sys/types.h does not supply u_intXX_t, supply them ourselves */
    239 #ifndef HAVE_U_INTXX_T
    240 # ifdef HAVE_UINTXX_T
    241 typedef uint8_t u_int8_t;
    242 typedef uint16_t u_int16_t;
    243 typedef uint32_t u_int32_t;
    244 # define HAVE_U_INTXX_T 1
    245 # else
    246 typedef unsigned char u_int8_t;
    247 #  if (SIZEOF_SHORT_INT == 2)
    248 typedef unsigned short int u_int16_t;
    249 #  else
    250 #   ifdef _UNICOS
    251 #    if (SIZEOF_SHORT_INT == 4)
    252 typedef unsigned short u_int16_t;
    253 #    else
    254 typedef unsigned long  u_int16_t;
    255 #    endif
    256 #   else
    257 #    error "16 bit int type not found."
    258 #   endif
    259 #  endif
    260 #  if (SIZEOF_INT == 4)
    261 typedef unsigned int u_int32_t;
    262 #  else
    263 #   ifdef _UNICOS
    264 typedef unsigned long  u_int32_t;
    265 #   else
    266 #    error "32 bit int type not found."
    267 #   endif
    268 #  endif
    269 # endif
    270 #define __BIT_TYPES_DEFINED__
    271 #endif
    272 
    273 /* 64-bit types */
    274 #ifndef HAVE_INT64_T
    275 # if (SIZEOF_LONG_INT == 8)
    276 typedef long int int64_t;
    277 # else
    278 #  if (SIZEOF_LONG_LONG_INT == 8)
    279 typedef long long int int64_t;
    280 #  endif
    281 # endif
    282 #endif
    283 #ifndef HAVE_U_INT64_T
    284 # if (SIZEOF_LONG_INT == 8)
    285 typedef unsigned long int u_int64_t;
    286 # else
    287 #  if (SIZEOF_LONG_LONG_INT == 8)
    288 typedef unsigned long long int u_int64_t;
    289 #  endif
    290 # endif
    291 #endif
    292 
    293 #ifndef HAVE_UINTXX_T
    294 typedef u_int8_t uint8_t;
    295 typedef u_int16_t uint16_t;
    296 typedef u_int32_t uint32_t;
    297 typedef u_int64_t uint64_t;
    298 #endif
    299 
    300 #ifndef HAVE_INTMAX_T
    301 typedef long long intmax_t;
    302 #endif
    303 
    304 #ifndef HAVE_UINTMAX_T
    305 typedef unsigned long long uintmax_t;
    306 #endif
    307 
    308 #ifndef HAVE_U_CHAR
    309 typedef unsigned char u_char;
    310 # define HAVE_U_CHAR
    311 #endif /* HAVE_U_CHAR */
    312 
    313 #ifndef ULLONG_MAX
    314 # define ULLONG_MAX ((unsigned long long)-1)
    315 #endif
    316 
    317 #ifndef SIZE_T_MAX
    318 #define SIZE_T_MAX ULONG_MAX
    319 #endif /* SIZE_T_MAX */
    320 
    321 #ifndef HAVE_SIZE_T
    322 typedef unsigned int size_t;
    323 # define HAVE_SIZE_T
    324 # define SIZE_T_MAX UINT_MAX
    325 #endif /* HAVE_SIZE_T */
    326 
    327 #ifndef SIZE_MAX
    328 #define SIZE_MAX SIZE_T_MAX
    329 #endif
    330 
    331 #ifndef HAVE_SSIZE_T
    332 typedef int ssize_t;
    333 # define HAVE_SSIZE_T
    334 #endif /* HAVE_SSIZE_T */
    335 
    336 #ifndef HAVE_CLOCK_T
    337 typedef long clock_t;
    338 # define HAVE_CLOCK_T
    339 #endif /* HAVE_CLOCK_T */
    340 
    341 #ifndef HAVE_SA_FAMILY_T
    342 typedef int sa_family_t;
    343 # define HAVE_SA_FAMILY_T
    344 #endif /* HAVE_SA_FAMILY_T */
    345 
    346 #ifndef HAVE_PID_T
    347 typedef int pid_t;
    348 # define HAVE_PID_T
    349 #endif /* HAVE_PID_T */
    350 
    351 #ifndef HAVE_SIG_ATOMIC_T
    352 typedef int sig_atomic_t;
    353 # define HAVE_SIG_ATOMIC_T
    354 #endif /* HAVE_SIG_ATOMIC_T */
    355 
    356 #ifndef HAVE_MODE_T
    357 typedef int mode_t;
    358 # define HAVE_MODE_T
    359 #endif /* HAVE_MODE_T */
    360 
    361 #if !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE___SS_FAMILY_IN_SS)
    362 # define ss_family __ss_family
    363 #endif /* !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE_SA_FAMILY_IN_SS) */
    364 
    365 #ifndef HAVE_SYS_UN_H
    366 struct	sockaddr_un {
    367 	short	sun_family;		/* AF_UNIX */
    368 	char	sun_path[108];		/* path name (gag) */
    369 };
    370 #endif /* HAVE_SYS_UN_H */
    371 
    372 #ifndef HAVE_IN_ADDR_T
    373 typedef u_int32_t	in_addr_t;
    374 #endif
    375 #ifndef HAVE_IN_PORT_T
    376 typedef u_int16_t	in_port_t;
    377 #endif
    378 
    379 #if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE)
    380 #define _STRUCT_WINSIZE
    381 struct winsize {
    382       unsigned short ws_row;          /* rows, in characters */
    383       unsigned short ws_col;          /* columns, in character */
    384       unsigned short ws_xpixel;       /* horizontal size, pixels */
    385       unsigned short ws_ypixel;       /* vertical size, pixels */
    386 };
    387 #endif
    388 
    389 /* bits needed for select that may not be in the system headers */
    390 #ifndef HAVE_FD_MASK
    391  typedef unsigned long int	fd_mask;
    392 #endif
    393 
    394 #if defined(HAVE_DECL_NFDBITS) && HAVE_DECL_NFDBITS == 0
    395 # define	NFDBITS (8 * sizeof(unsigned long))
    396 #endif
    397 
    398 #if defined(HAVE_DECL_HOWMANY) && HAVE_DECL_HOWMANY == 0
    399 # define howmany(x,y)	(((x)+((y)-1))/(y))
    400 #endif
    401 
    402 /* Paths */
    403 
    404 #ifndef _PATH_BSHELL
    405 # define _PATH_BSHELL "/bin/sh"
    406 #endif
    407 
    408 #ifdef USER_PATH
    409 # ifdef _PATH_STDPATH
    410 #  undef _PATH_STDPATH
    411 # endif
    412 # define _PATH_STDPATH USER_PATH
    413 #endif
    414 
    415 #ifndef _PATH_STDPATH
    416 # define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
    417 #endif
    418 
    419 #ifndef SUPERUSER_PATH
    420 # define SUPERUSER_PATH	_PATH_STDPATH
    421 #endif
    422 
    423 #ifndef _PATH_DEVNULL
    424 # define _PATH_DEVNULL "/dev/null"
    425 #endif
    426 
    427 /* user may have set a different path */
    428 #if defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY)
    429 # undef _PATH_MAILDIR
    430 #endif /* defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY) */
    431 
    432 #ifdef MAIL_DIRECTORY
    433 # define _PATH_MAILDIR MAIL_DIRECTORY
    434 #endif
    435 
    436 #ifndef _PATH_NOLOGIN
    437 # define _PATH_NOLOGIN "/etc/nologin"
    438 #endif
    439 
    440 /* Define this to be the path of the xauth program. */
    441 #ifdef XAUTH_PATH
    442 #define _PATH_XAUTH XAUTH_PATH
    443 #endif /* XAUTH_PATH */
    444 
    445 /* derived from XF4/xc/lib/dps/Xlibnet.h */
    446 #ifndef X_UNIX_PATH
    447 #  ifdef __hpux
    448 #    define X_UNIX_PATH "/var/spool/sockets/X11/%u"
    449 #  else
    450 #    define X_UNIX_PATH "/tmp/.X11-unix/X%u"
    451 #  endif
    452 #endif /* X_UNIX_PATH */
    453 #define _PATH_UNIX_X X_UNIX_PATH
    454 
    455 #ifndef _PATH_TTY
    456 # define _PATH_TTY "/dev/tty"
    457 #endif
    458 
    459 /* Macros */
    460 
    461 #if defined(HAVE_LOGIN_GETCAPBOOL) && defined(HAVE_LOGIN_CAP_H)
    462 # define HAVE_LOGIN_CAP
    463 #endif
    464 
    465 #ifndef MAX
    466 # define MAX(a,b) (((a)>(b))?(a):(b))
    467 # define MIN(a,b) (((a)<(b))?(a):(b))
    468 #endif
    469 
    470 #ifndef roundup
    471 # define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
    472 #endif
    473 
    474 #ifndef timersub
    475 #define timersub(a, b, result)					\
    476    do {								\
    477       (result)->tv_sec = (a)->tv_sec - (b)->tv_sec;		\
    478       (result)->tv_usec = (a)->tv_usec - (b)->tv_usec;		\
    479       if ((result)->tv_usec < 0) {				\
    480 	 --(result)->tv_sec;					\
    481 	 (result)->tv_usec += 1000000;				\
    482       }								\
    483    } while (0)
    484 #endif
    485 
    486 #ifndef TIMEVAL_TO_TIMESPEC
    487 #define	TIMEVAL_TO_TIMESPEC(tv, ts) {					\
    488 	(ts)->tv_sec = (tv)->tv_sec;					\
    489 	(ts)->tv_nsec = (tv)->tv_usec * 1000;				\
    490 }
    491 #endif
    492 
    493 #ifndef TIMESPEC_TO_TIMEVAL
    494 #define	TIMESPEC_TO_TIMEVAL(tv, ts) {					\
    495 	(tv)->tv_sec = (ts)->tv_sec;					\
    496 	(tv)->tv_usec = (ts)->tv_nsec / 1000;				\
    497 }
    498 #endif
    499 
    500 #ifndef __P
    501 # define __P(x) x
    502 #endif
    503 
    504 #if !defined(IN6_IS_ADDR_V4MAPPED)
    505 # define IN6_IS_ADDR_V4MAPPED(a) \
    506 	((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \
    507 	 (((u_int32_t *) (a))[2] == htonl (0xffff)))
    508 #endif /* !defined(IN6_IS_ADDR_V4MAPPED) */
    509 
    510 #if !defined(__GNUC__) || (__GNUC__ < 2)
    511 # define __attribute__(x)
    512 #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
    513 
    514 #if !defined(HAVE_ATTRIBUTE__SENTINEL__) && !defined(__sentinel__)
    515 # define __sentinel__
    516 #endif
    517 
    518 #if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__bounded__)
    519 # define __bounded__(x, y, z)
    520 #endif
    521 
    522 #if !defined(HAVE_ATTRIBUTE__NONNULL__) && !defined(__nonnull__)
    523 # define __nonnull__(x)
    524 #endif
    525 
    526 #ifndef OSSH_ALIGNBYTES
    527 #define OSSH_ALIGNBYTES	(sizeof(int) - 1)
    528 #endif
    529 #ifndef __CMSG_ALIGN
    530 #define	__CMSG_ALIGN(p) (((u_int)(p) + OSSH_ALIGNBYTES) &~ OSSH_ALIGNBYTES)
    531 #endif
    532 
    533 /* Length of the contents of a control message of length len */
    534 #ifndef CMSG_LEN
    535 #define	CMSG_LEN(len)	(__CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
    536 #endif
    537 
    538 /* Length of the space taken up by a padded control message of length len */
    539 #ifndef CMSG_SPACE
    540 #define	CMSG_SPACE(len)	(__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(len))
    541 #endif
    542 
    543 /* given pointer to struct cmsghdr, return pointer to data */
    544 #ifndef CMSG_DATA
    545 #define CMSG_DATA(cmsg) ((u_char *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
    546 #endif /* CMSG_DATA */
    547 
    548 /*
    549  * RFC 2292 requires to check msg_controllen, in case that the kernel returns
    550  * an empty list for some reasons.
    551  */
    552 #ifndef CMSG_FIRSTHDR
    553 #define CMSG_FIRSTHDR(mhdr) \
    554 	((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
    555 	 (struct cmsghdr *)(mhdr)->msg_control : \
    556 	 (struct cmsghdr *)NULL)
    557 #endif /* CMSG_FIRSTHDR */
    558 
    559 #if defined(HAVE_DECL_OFFSETOF) && HAVE_DECL_OFFSETOF == 0
    560 # define offsetof(type, member) ((size_t) &((type *)0)->member)
    561 #endif
    562 
    563 /* Set up BSD-style BYTE_ORDER definition if it isn't there already */
    564 /* XXX: doesn't try to cope with strange byte orders (PDP_ENDIAN) */
    565 #ifndef BYTE_ORDER
    566 # ifndef LITTLE_ENDIAN
    567 #  define LITTLE_ENDIAN  1234
    568 # endif /* LITTLE_ENDIAN */
    569 # ifndef BIG_ENDIAN
    570 #  define BIG_ENDIAN     4321
    571 # endif /* BIG_ENDIAN */
    572 # ifdef WORDS_BIGENDIAN
    573 #  define BYTE_ORDER BIG_ENDIAN
    574 # else /* WORDS_BIGENDIAN */
    575 #  define BYTE_ORDER LITTLE_ENDIAN
    576 # endif /* WORDS_BIGENDIAN */
    577 #endif /* BYTE_ORDER */
    578 
    579 /* Function replacement / compatibility hacks */
    580 
    581 #if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO))
    582 # define HAVE_GETADDRINFO
    583 #endif
    584 
    585 #ifndef HAVE_GETOPT_OPTRESET
    586 # undef getopt
    587 # undef opterr
    588 # undef optind
    589 # undef optopt
    590 # undef optreset
    591 # undef optarg
    592 # define getopt(ac, av, o)  BSDgetopt(ac, av, o)
    593 # define opterr             BSDopterr
    594 # define optind             BSDoptind
    595 # define optopt             BSDoptopt
    596 # define optreset           BSDoptreset
    597 # define optarg             BSDoptarg
    598 #endif
    599 
    600 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO)
    601 # undef HAVE_GETADDRINFO
    602 #endif
    603 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_FREEADDRINFO)
    604 # undef HAVE_FREEADDRINFO
    605 #endif
    606 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GAI_STRERROR)
    607 # undef HAVE_GAI_STRERROR
    608 #endif
    609 
    610 #if defined(HAVE_GETADDRINFO)
    611 # if defined(HAVE_DECL_AI_NUMERICSERV) && HAVE_DECL_AI_NUMERICSERV == 0
    612 #   define AI_NUMERICSERV	0
    613 # endif
    614 #endif
    615 
    616 #if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX)
    617 # undef HAVE_UPDWTMPX
    618 #endif
    619 
    620 #if defined(BROKEN_SHADOW_EXPIRE) && defined(HAS_SHADOW_EXPIRE)
    621 # undef HAS_SHADOW_EXPIRE
    622 #endif
    623 
    624 #if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT) && \
    625     defined(SYSLOG_R_SAFE_IN_SIGHAND)
    626 # define DO_LOG_SAFE_IN_SIGHAND
    627 #endif
    628 
    629 #if !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY)
    630 # define memmove(s1, s2, n) bcopy((s2), (s1), (n))
    631 #endif /* !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY) */
    632 
    633 #ifndef GETPGRP_VOID
    634 # include <unistd.h>
    635 # define getpgrp() getpgrp(0)
    636 #endif
    637 
    638 #ifdef USE_BSM_AUDIT
    639 # define SSH_AUDIT_EVENTS
    640 # define CUSTOM_SSH_AUDIT_EVENTS
    641 #endif
    642 
    643 #ifdef USE_LINUX_AUDIT
    644 # define SSH_AUDIT_EVENTS
    645 # define CUSTOM_SSH_AUDIT_EVENTS
    646 #endif
    647 
    648 #if !defined(HAVE___func__) && defined(HAVE___FUNCTION__)
    649 #  define __func__ __FUNCTION__
    650 #elif !defined(HAVE___func__)
    651 #  define __func__ ""
    652 #endif
    653 
    654 #if defined(KRB5) && !defined(HEIMDAL)
    655 #  define krb5_get_err_text(context,code) error_message(code)
    656 #endif
    657 
    658 #if defined(SKEYCHALLENGE_4ARG)
    659 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c,d)
    660 #else
    661 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c)
    662 #endif
    663 
    664 /* Maximum number of file descriptors available */
    665 #ifdef HAVE_SYSCONF
    666 # define SSH_SYSFDMAX sysconf(_SC_OPEN_MAX)
    667 #else
    668 # define SSH_SYSFDMAX 10000
    669 #endif
    670 
    671 #ifdef FSID_HAS_VAL
    672 /* encode f_fsid into a 64 bit value  */
    673 #define FSID_TO_ULONG(f) \
    674 	((((u_int64_t)(f).val[0] & 0xffffffffUL) << 32) | \
    675 	    ((f).val[1] & 0xffffffffUL))
    676 #elif defined(FSID_HAS___VAL)
    677 #define FSID_TO_ULONG(f) \
    678 	((((u_int64_t)(f).__val[0] & 0xffffffffUL) << 32) | \
    679 	    ((f).__val[1] & 0xffffffffUL))
    680 #else
    681 # define FSID_TO_ULONG(f) ((f))
    682 #endif
    683 
    684 #if defined(__Lynx__)
    685  /*
    686   * LynxOS defines these in param.h which we do not want to include since
    687   * it will also pull in a bunch of kernel definitions.
    688   */
    689 # define ALIGNBYTES (sizeof(int) - 1)
    690 # define ALIGN(p) (((unsigned)p + ALIGNBYTES) & ~ALIGNBYTES)
    691   /* Missing prototypes on LynxOS */
    692   int snprintf (char *, size_t, const char *, ...);
    693   int mkstemp (char *);
    694   char *crypt (const char *, const char *);
    695   int seteuid (uid_t);
    696   int setegid (gid_t);
    697   char *mkdtemp (char *);
    698   int rresvport_af (int *, sa_family_t);
    699   int innetgr (const char *, const char *, const char *, const char *);
    700 #endif
    701 
    702 /*
    703  * Define this to use pipes instead of socketpairs for communicating with the
    704  * client program.  Socketpairs do not seem to work on all systems.
    705  *
    706  * configure.ac sets this for a few OS's which are known to have problems
    707  * but you may need to set it yourself
    708  */
    709 /* #define USE_PIPES 1 */
    710 
    711 /**
    712  ** login recorder definitions
    713  **/
    714 
    715 /* FIXME: put default paths back in */
    716 #ifndef UTMP_FILE
    717 #  ifdef _PATH_UTMP
    718 #    define UTMP_FILE _PATH_UTMP
    719 #  else
    720 #    ifdef CONF_UTMP_FILE
    721 #      define UTMP_FILE CONF_UTMP_FILE
    722 #    endif
    723 #  endif
    724 #endif
    725 #ifndef WTMP_FILE
    726 #  ifdef _PATH_WTMP
    727 #    define WTMP_FILE _PATH_WTMP
    728 #  else
    729 #    ifdef CONF_WTMP_FILE
    730 #      define WTMP_FILE CONF_WTMP_FILE
    731 #    endif
    732 #  endif
    733 #endif
    734 /* pick up the user's location for lastlog if given */
    735 #ifndef LASTLOG_FILE
    736 #  ifdef _PATH_LASTLOG
    737 #    define LASTLOG_FILE _PATH_LASTLOG
    738 #  else
    739 #    ifdef CONF_LASTLOG_FILE
    740 #      define LASTLOG_FILE CONF_LASTLOG_FILE
    741 #    endif
    742 #  endif
    743 #endif
    744 
    745 #if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
    746 # define USE_SHADOW
    747 #endif
    748 
    749 /* The login() library function in libutil is first choice */
    750 #if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN)
    751 #  define USE_LOGIN
    752 
    753 #else
    754 /* Simply select your favourite login types. */
    755 /* Can't do if-else because some systems use several... <sigh> */
    756 #  if !defined(DISABLE_UTMPX)
    757 #    define USE_UTMPX
    758 #  endif
    759 #  if defined(UTMP_FILE) && !defined(DISABLE_UTMP)
    760 #    define USE_UTMP
    761 #  endif
    762 #  if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX)
    763 #    define USE_WTMPX
    764 #  endif
    765 #  if defined(WTMP_FILE) && !defined(DISABLE_WTMP)
    766 #    define USE_WTMP
    767 #  endif
    768 
    769 #endif
    770 
    771 #ifndef UT_LINESIZE
    772 # define UT_LINESIZE 8
    773 #endif
    774 
    775 /* I hope that the presence of LASTLOG_FILE is enough to detect this */
    776 #if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG)
    777 #  define USE_LASTLOG
    778 #endif
    779 
    780 #ifdef HAVE_OSF_SIA
    781 # ifdef USE_SHADOW
    782 #  undef USE_SHADOW
    783 # endif
    784 # define CUSTOM_SYS_AUTH_PASSWD 1
    785 #endif
    786 
    787 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(HAVE_SECUREWARE)
    788 # define CUSTOM_SYS_AUTH_PASSWD 1
    789 #endif
    790 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(BROKEN_LIBIAF)
    791 # define USE_LIBIAF
    792 #endif
    793 
    794 /* HP-UX 11.11 */
    795 #ifdef BTMP_FILE
    796 # define _PATH_BTMP BTMP_FILE
    797 #endif
    798 
    799 #if defined(USE_BTMP) && defined(_PATH_BTMP)
    800 # define CUSTOM_FAILED_LOGIN
    801 #endif
    802 
    803 /** end of login recorder definitions */
    804 
    805 #ifdef BROKEN_GETGROUPS
    806 # define getgroups(a,b) ((a)==0 && (b)==NULL ? NGROUPS_MAX : getgroups((a),(b)))
    807 #endif
    808 
    809 #if defined(HAVE_MMAP) && defined(BROKEN_MMAP)
    810 # undef HAVE_MMAP
    811 #endif
    812 
    813 #ifndef IOV_MAX
    814 # if defined(_XOPEN_IOV_MAX)
    815 #  define	IOV_MAX		_XOPEN_IOV_MAX
    816 # elif defined(DEF_IOV_MAX)
    817 #  define	IOV_MAX		DEF_IOV_MAX
    818 # else
    819 #  define	IOV_MAX		16
    820 # endif
    821 #endif
    822 
    823 #ifndef EWOULDBLOCK
    824 # define EWOULDBLOCK EAGAIN
    825 #endif
    826 
    827 #ifndef INET6_ADDRSTRLEN	/* for non IPv6 machines */
    828 #define INET6_ADDRSTRLEN 46
    829 #endif
    830 
    831 #ifndef SSH_IOBUFSZ
    832 # define SSH_IOBUFSZ 8192
    833 #endif
    834 
    835 /*
    836  * We want functions in openbsd-compat, if enabled, to override system ones.
    837  * We no-op out the weak symbol definition rather than remove it to reduce
    838  * future sync problems.
    839  */
    840 #define DEF_WEAK(x)
    841 
    842 /*
    843  * Platforms that have arc4random_uniform() and not arc4random_stir()
    844  * shouldn't need the latter.
    845  */
    846 #if defined(HAVE_ARC4RANDOM) && defined(HAVE_ARC4RANDOM_UNIFORM) && \
    847     !defined(HAVE_ARC4RANDOM_STIR)
    848 # define arc4random_stir()
    849 #endif
    850 
    851 #ifndef HAVE_VA_COPY
    852 # ifdef HAVE___VA_COPY
    853 #  define va_copy(dest, src) __va_copy(dest, src)
    854 # else
    855 #  define va_copy(dest, src) (dest) = (src)
    856 # endif
    857 #endif
    858 
    859 #ifndef __predict_true
    860 # if defined(__GNUC__) && \
    861      ((__GNUC__ > (2)) || (__GNUC__ == (2) && __GNUC_MINOR__ >= (96)))
    862 #  define __predict_true(exp)     __builtin_expect(((exp) != 0), 1)
    863 #  define __predict_false(exp)    __builtin_expect(((exp) != 0), 0)
    864 # else
    865 #  define __predict_true(exp)     ((exp) != 0)
    866 #  define __predict_false(exp)    ((exp) != 0)
    867 # endif /* gcc version */
    868 #endif /* __predict_true */
    869 
    870 #if defined(HAVE_GLOB_H) && defined(GLOB_HAS_ALTDIRFUNC) && \
    871     defined(GLOB_HAS_GL_MATCHC) && defined(GLOB_HAS_GL_STATV) && \
    872     defined(HAVE_DECL_GLOB_NOMATCH) &&  HAVE_DECL_GLOB_NOMATCH != 0 && \
    873     !defined(BROKEN_GLOB)
    874 # define USE_SYSTEM_GLOB
    875 #endif
    876 
    877 #endif /* _DEFINES_H */
    878