xref: /freebsd/crypto/openssh/defines.h (revision 38f0b757fd84d17d0fc24739a7cda160c4516d81)
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 1.176 2014/01/17 13:12:38 dtucker 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 #if defined(HAVE_DECL_MAXSYMLINKS) && HAVE_DECL_MAXSYMLINKS == 0
109 # define MAXSYMLINKS 5
110 #endif
111 
112 #ifndef STDIN_FILENO
113 # define STDIN_FILENO    0
114 #endif
115 #ifndef STDOUT_FILENO
116 # define STDOUT_FILENO   1
117 #endif
118 #ifndef STDERR_FILENO
119 # define STDERR_FILENO   2
120 #endif
121 
122 #ifndef NGROUPS_MAX	/* Disable groupaccess if NGROUP_MAX is not set */
123 #ifdef NGROUPS
124 #define NGROUPS_MAX NGROUPS
125 #else
126 #define NGROUPS_MAX 0
127 #endif
128 #endif
129 
130 #if defined(HAVE_DECL_O_NONBLOCK) && HAVE_DECL_O_NONBLOCK == 0
131 # define O_NONBLOCK      00004	/* Non Blocking Open */
132 #endif
133 
134 #ifndef S_IFSOCK
135 # define S_IFSOCK 0
136 #endif /* S_IFSOCK */
137 
138 #ifndef S_ISDIR
139 # define S_ISDIR(mode)	(((mode) & (_S_IFMT)) == (_S_IFDIR))
140 #endif /* S_ISDIR */
141 
142 #ifndef S_ISREG
143 # define S_ISREG(mode)	(((mode) & (_S_IFMT)) == (_S_IFREG))
144 #endif /* S_ISREG */
145 
146 #ifndef S_ISLNK
147 # define S_ISLNK(mode)	(((mode) & S_IFMT) == S_IFLNK)
148 #endif /* S_ISLNK */
149 
150 #ifndef S_IXUSR
151 # define S_IXUSR			0000100	/* execute/search permission, */
152 # define S_IXGRP			0000010	/* execute/search permission, */
153 # define S_IXOTH			0000001	/* execute/search permission, */
154 # define _S_IWUSR			0000200	/* write permission, */
155 # define S_IWUSR			_S_IWUSR	/* write permission, owner */
156 # define S_IWGRP			0000020	/* write permission, group */
157 # define S_IWOTH			0000002	/* write permission, other */
158 # define S_IRUSR			0000400	/* read permission, owner */
159 # define S_IRGRP			0000040	/* read permission, group */
160 # define S_IROTH			0000004	/* read permission, other */
161 # define S_IRWXU			0000700	/* read, write, execute */
162 # define S_IRWXG			0000070	/* read, write, execute */
163 # define S_IRWXO			0000007	/* read, write, execute */
164 #endif /* S_IXUSR */
165 
166 #if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
167 #define MAP_ANON MAP_ANONYMOUS
168 #endif
169 
170 #ifndef MAP_FAILED
171 # define MAP_FAILED ((void *)-1)
172 #endif
173 
174 /*
175 SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but
176 including rpc/rpc.h breaks Solaris 6
177 */
178 #ifndef INADDR_LOOPBACK
179 #define INADDR_LOOPBACK ((u_long)0x7f000001)
180 #endif
181 
182 /* Types */
183 
184 /* If sys/types.h does not supply intXX_t, supply them ourselves */
185 /* (or die trying) */
186 
187 #ifndef HAVE_U_INT
188 typedef unsigned int u_int;
189 #endif
190 
191 #ifndef HAVE_INTXX_T
192 typedef signed char int8_t;
193 # if (SIZEOF_SHORT_INT == 2)
194 typedef short int int16_t;
195 # else
196 #  ifdef _UNICOS
197 #   if (SIZEOF_SHORT_INT == 4)
198 typedef short int16_t;
199 #   else
200 typedef long  int16_t;
201 #   endif
202 #  else
203 #   error "16 bit int type not found."
204 #  endif /* _UNICOS */
205 # endif
206 # if (SIZEOF_INT == 4)
207 typedef int int32_t;
208 # else
209 #  ifdef _UNICOS
210 typedef long  int32_t;
211 #  else
212 #   error "32 bit int type not found."
213 #  endif /* _UNICOS */
214 # endif
215 #endif
216 
217 /* If sys/types.h does not supply u_intXX_t, supply them ourselves */
218 #ifndef HAVE_U_INTXX_T
219 # ifdef HAVE_UINTXX_T
220 typedef uint8_t u_int8_t;
221 typedef uint16_t u_int16_t;
222 typedef uint32_t u_int32_t;
223 # define HAVE_U_INTXX_T 1
224 # else
225 typedef unsigned char u_int8_t;
226 #  if (SIZEOF_SHORT_INT == 2)
227 typedef unsigned short int u_int16_t;
228 #  else
229 #   ifdef _UNICOS
230 #    if (SIZEOF_SHORT_INT == 4)
231 typedef unsigned short u_int16_t;
232 #    else
233 typedef unsigned long  u_int16_t;
234 #    endif
235 #   else
236 #    error "16 bit int type not found."
237 #   endif
238 #  endif
239 #  if (SIZEOF_INT == 4)
240 typedef unsigned int u_int32_t;
241 #  else
242 #   ifdef _UNICOS
243 typedef unsigned long  u_int32_t;
244 #   else
245 #    error "32 bit int type not found."
246 #   endif
247 #  endif
248 # endif
249 #define __BIT_TYPES_DEFINED__
250 #endif
251 
252 /* 64-bit types */
253 #ifndef HAVE_INT64_T
254 # if (SIZEOF_LONG_INT == 8)
255 typedef long int int64_t;
256 # else
257 #  if (SIZEOF_LONG_LONG_INT == 8)
258 typedef long long int int64_t;
259 #  endif
260 # endif
261 #endif
262 #ifndef HAVE_U_INT64_T
263 # if (SIZEOF_LONG_INT == 8)
264 typedef unsigned long int u_int64_t;
265 # else
266 #  if (SIZEOF_LONG_LONG_INT == 8)
267 typedef unsigned long long int u_int64_t;
268 #  endif
269 # endif
270 #endif
271 
272 #ifndef HAVE_UINTXX_T
273 typedef u_int8_t uint8_t;
274 typedef u_int16_t uint16_t;
275 typedef u_int32_t uint32_t;
276 typedef u_int64_t uint64_t;
277 #endif
278 
279 #ifndef HAVE_INTMAX_T
280 typedef long long intmax_t;
281 #endif
282 
283 #ifndef HAVE_UINTMAX_T
284 typedef unsigned long long uintmax_t;
285 #endif
286 
287 #ifndef HAVE_U_CHAR
288 typedef unsigned char u_char;
289 # define HAVE_U_CHAR
290 #endif /* HAVE_U_CHAR */
291 
292 #ifndef ULLONG_MAX
293 # define ULLONG_MAX ((unsigned long long)-1)
294 #endif
295 
296 #ifndef SIZE_T_MAX
297 #define SIZE_T_MAX ULONG_MAX
298 #endif /* SIZE_T_MAX */
299 
300 #ifndef HAVE_SIZE_T
301 typedef unsigned int size_t;
302 # define HAVE_SIZE_T
303 # define SIZE_T_MAX UINT_MAX
304 #endif /* HAVE_SIZE_T */
305 
306 #ifndef SIZE_MAX
307 #define SIZE_MAX SIZE_T_MAX
308 #endif
309 
310 #ifndef HAVE_SSIZE_T
311 typedef int ssize_t;
312 # define HAVE_SSIZE_T
313 #endif /* HAVE_SSIZE_T */
314 
315 #ifndef HAVE_CLOCK_T
316 typedef long clock_t;
317 # define HAVE_CLOCK_T
318 #endif /* HAVE_CLOCK_T */
319 
320 #ifndef HAVE_SA_FAMILY_T
321 typedef int sa_family_t;
322 # define HAVE_SA_FAMILY_T
323 #endif /* HAVE_SA_FAMILY_T */
324 
325 #ifndef HAVE_PID_T
326 typedef int pid_t;
327 # define HAVE_PID_T
328 #endif /* HAVE_PID_T */
329 
330 #ifndef HAVE_SIG_ATOMIC_T
331 typedef int sig_atomic_t;
332 # define HAVE_SIG_ATOMIC_T
333 #endif /* HAVE_SIG_ATOMIC_T */
334 
335 #ifndef HAVE_MODE_T
336 typedef int mode_t;
337 # define HAVE_MODE_T
338 #endif /* HAVE_MODE_T */
339 
340 #if !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE___SS_FAMILY_IN_SS)
341 # define ss_family __ss_family
342 #endif /* !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE_SA_FAMILY_IN_SS) */
343 
344 #ifndef HAVE_SYS_UN_H
345 struct	sockaddr_un {
346 	short	sun_family;		/* AF_UNIX */
347 	char	sun_path[108];		/* path name (gag) */
348 };
349 #endif /* HAVE_SYS_UN_H */
350 
351 #ifndef HAVE_IN_ADDR_T
352 typedef u_int32_t	in_addr_t;
353 #endif
354 #ifndef HAVE_IN_PORT_T
355 typedef u_int16_t	in_port_t;
356 #endif
357 
358 #if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE)
359 #define _STRUCT_WINSIZE
360 struct winsize {
361       unsigned short ws_row;          /* rows, in characters */
362       unsigned short ws_col;          /* columns, in character */
363       unsigned short ws_xpixel;       /* horizontal size, pixels */
364       unsigned short ws_ypixel;       /* vertical size, pixels */
365 };
366 #endif
367 
368 /* bits needed for select that may not be in the system headers */
369 #ifndef HAVE_FD_MASK
370  typedef unsigned long int	fd_mask;
371 #endif
372 
373 #if defined(HAVE_DECL_NFDBITS) && HAVE_DECL_NFDBITS == 0
374 # define	NFDBITS (8 * sizeof(unsigned long))
375 #endif
376 
377 #if defined(HAVE_DECL_HOWMANY) && HAVE_DECL_HOWMANY == 0
378 # define howmany(x,y)	(((x)+((y)-1))/(y))
379 #endif
380 
381 /* Paths */
382 
383 #ifndef _PATH_BSHELL
384 # define _PATH_BSHELL "/bin/sh"
385 #endif
386 
387 #ifdef USER_PATH
388 # ifdef _PATH_STDPATH
389 #  undef _PATH_STDPATH
390 # endif
391 # define _PATH_STDPATH USER_PATH
392 #endif
393 
394 #ifndef _PATH_STDPATH
395 # define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
396 #endif
397 
398 #ifndef SUPERUSER_PATH
399 # define SUPERUSER_PATH	_PATH_STDPATH
400 #endif
401 
402 #ifndef _PATH_DEVNULL
403 # define _PATH_DEVNULL "/dev/null"
404 #endif
405 
406 /* user may have set a different path */
407 #if defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY)
408 # undef _PATH_MAILDIR MAILDIR
409 #endif /* defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY) */
410 
411 #ifdef MAIL_DIRECTORY
412 # define _PATH_MAILDIR MAIL_DIRECTORY
413 #endif
414 
415 #ifndef _PATH_NOLOGIN
416 # define _PATH_NOLOGIN "/etc/nologin"
417 #endif
418 
419 /* Define this to be the path of the xauth program. */
420 #ifdef XAUTH_PATH
421 #define _PATH_XAUTH XAUTH_PATH
422 #endif /* XAUTH_PATH */
423 
424 /* derived from XF4/xc/lib/dps/Xlibnet.h */
425 #ifndef X_UNIX_PATH
426 #  ifdef __hpux
427 #    define X_UNIX_PATH "/var/spool/sockets/X11/%u"
428 #  else
429 #    define X_UNIX_PATH "/tmp/.X11-unix/X%u"
430 #  endif
431 #endif /* X_UNIX_PATH */
432 #define _PATH_UNIX_X X_UNIX_PATH
433 
434 #ifndef _PATH_TTY
435 # define _PATH_TTY "/dev/tty"
436 #endif
437 
438 /* Macros */
439 
440 #if defined(HAVE_LOGIN_GETCAPBOOL) && defined(HAVE_LOGIN_CAP_H)
441 # define HAVE_LOGIN_CAP
442 #endif
443 
444 #ifndef MAX
445 # define MAX(a,b) (((a)>(b))?(a):(b))
446 # define MIN(a,b) (((a)<(b))?(a):(b))
447 #endif
448 
449 #ifndef roundup
450 # define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
451 #endif
452 
453 #ifndef timersub
454 #define timersub(a, b, result)					\
455    do {								\
456       (result)->tv_sec = (a)->tv_sec - (b)->tv_sec;		\
457       (result)->tv_usec = (a)->tv_usec - (b)->tv_usec;		\
458       if ((result)->tv_usec < 0) {				\
459 	 --(result)->tv_sec;					\
460 	 (result)->tv_usec += 1000000;				\
461       }								\
462    } while (0)
463 #endif
464 
465 #ifndef TIMEVAL_TO_TIMESPEC
466 #define	TIMEVAL_TO_TIMESPEC(tv, ts) {					\
467 	(ts)->tv_sec = (tv)->tv_sec;					\
468 	(ts)->tv_nsec = (tv)->tv_usec * 1000;				\
469 }
470 #endif
471 
472 #ifndef TIMESPEC_TO_TIMEVAL
473 #define	TIMESPEC_TO_TIMEVAL(tv, ts) {					\
474 	(tv)->tv_sec = (ts)->tv_sec;					\
475 	(tv)->tv_usec = (ts)->tv_nsec / 1000;				\
476 }
477 #endif
478 
479 #ifndef __P
480 # define __P(x) x
481 #endif
482 
483 #if !defined(IN6_IS_ADDR_V4MAPPED)
484 # define IN6_IS_ADDR_V4MAPPED(a) \
485 	((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \
486 	 (((u_int32_t *) (a))[2] == htonl (0xffff)))
487 #endif /* !defined(IN6_IS_ADDR_V4MAPPED) */
488 
489 #if !defined(__GNUC__) || (__GNUC__ < 2)
490 # define __attribute__(x)
491 #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
492 
493 #if !defined(HAVE_ATTRIBUTE__SENTINEL__) && !defined(__sentinel__)
494 # define __sentinel__
495 #endif
496 
497 #if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__bounded__)
498 # define __bounded__(x, y, z)
499 #endif
500 
501 #if !defined(HAVE_ATTRIBUTE__NONNULL__) && !defined(__nonnull__)
502 # define __nonnull__(x)
503 #endif
504 
505 #ifndef OSSH_ALIGNBYTES
506 #define OSSH_ALIGNBYTES	(sizeof(int) - 1)
507 #endif
508 #ifndef __CMSG_ALIGN
509 #define	__CMSG_ALIGN(p) (((u_int)(p) + OSSH_ALIGNBYTES) &~ OSSH_ALIGNBYTES)
510 #endif
511 
512 /* Length of the contents of a control message of length len */
513 #ifndef CMSG_LEN
514 #define	CMSG_LEN(len)	(__CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
515 #endif
516 
517 /* Length of the space taken up by a padded control message of length len */
518 #ifndef CMSG_SPACE
519 #define	CMSG_SPACE(len)	(__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(len))
520 #endif
521 
522 /* given pointer to struct cmsghdr, return pointer to data */
523 #ifndef CMSG_DATA
524 #define CMSG_DATA(cmsg) ((u_char *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
525 #endif /* CMSG_DATA */
526 
527 /*
528  * RFC 2292 requires to check msg_controllen, in case that the kernel returns
529  * an empty list for some reasons.
530  */
531 #ifndef CMSG_FIRSTHDR
532 #define CMSG_FIRSTHDR(mhdr) \
533 	((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
534 	 (struct cmsghdr *)(mhdr)->msg_control : \
535 	 (struct cmsghdr *)NULL)
536 #endif /* CMSG_FIRSTHDR */
537 
538 #if defined(HAVE_DECL_OFFSETOF) && HAVE_DECL_OFFSETOF == 0
539 # define offsetof(type, member) ((size_t) &((type *)0)->member)
540 #endif
541 
542 /* Set up BSD-style BYTE_ORDER definition if it isn't there already */
543 /* XXX: doesn't try to cope with strange byte orders (PDP_ENDIAN) */
544 #ifndef BYTE_ORDER
545 # ifndef LITTLE_ENDIAN
546 #  define LITTLE_ENDIAN  1234
547 # endif /* LITTLE_ENDIAN */
548 # ifndef BIG_ENDIAN
549 #  define BIG_ENDIAN     4321
550 # endif /* BIG_ENDIAN */
551 # ifdef WORDS_BIGENDIAN
552 #  define BYTE_ORDER BIG_ENDIAN
553 # else /* WORDS_BIGENDIAN */
554 #  define BYTE_ORDER LITTLE_ENDIAN
555 # endif /* WORDS_BIGENDIAN */
556 #endif /* BYTE_ORDER */
557 
558 /* Function replacement / compatibility hacks */
559 
560 #if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO))
561 # define HAVE_GETADDRINFO
562 #endif
563 
564 #ifndef HAVE_GETOPT_OPTRESET
565 # undef getopt
566 # undef opterr
567 # undef optind
568 # undef optopt
569 # undef optreset
570 # undef optarg
571 # define getopt(ac, av, o)  BSDgetopt(ac, av, o)
572 # define opterr             BSDopterr
573 # define optind             BSDoptind
574 # define optopt             BSDoptopt
575 # define optreset           BSDoptreset
576 # define optarg             BSDoptarg
577 #endif
578 
579 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO)
580 # undef HAVE_GETADDRINFO
581 #endif
582 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_FREEADDRINFO)
583 # undef HAVE_FREEADDRINFO
584 #endif
585 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GAI_STRERROR)
586 # undef HAVE_GAI_STRERROR
587 #endif
588 
589 #if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX)
590 # undef HAVE_UPDWTMPX
591 #endif
592 
593 #if defined(BROKEN_SHADOW_EXPIRE) && defined(HAS_SHADOW_EXPIRE)
594 # undef HAS_SHADOW_EXPIRE
595 #endif
596 
597 #if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT) && \
598     defined(SYSLOG_R_SAFE_IN_SIGHAND)
599 # define DO_LOG_SAFE_IN_SIGHAND
600 #endif
601 
602 #if !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY)
603 # define memmove(s1, s2, n) bcopy((s2), (s1), (n))
604 #endif /* !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY) */
605 
606 #if defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX)
607 #  define USE_VHANGUP
608 #endif /* defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX) */
609 
610 #ifndef GETPGRP_VOID
611 # include <unistd.h>
612 # define getpgrp() getpgrp(0)
613 #endif
614 
615 #ifdef USE_BSM_AUDIT
616 # define SSH_AUDIT_EVENTS
617 # define CUSTOM_SSH_AUDIT_EVENTS
618 #endif
619 
620 #ifdef USE_LINUX_AUDIT
621 # define SSH_AUDIT_EVENTS
622 # define CUSTOM_SSH_AUDIT_EVENTS
623 #endif
624 
625 #if !defined(HAVE___func__) && defined(HAVE___FUNCTION__)
626 #  define __func__ __FUNCTION__
627 #elif !defined(HAVE___func__)
628 #  define __func__ ""
629 #endif
630 
631 #if defined(KRB5) && !defined(HEIMDAL)
632 #  define krb5_get_err_text(context,code) error_message(code)
633 #endif
634 
635 #if defined(SKEYCHALLENGE_4ARG)
636 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c,d)
637 #else
638 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c)
639 #endif
640 
641 /* Maximum number of file descriptors available */
642 #ifdef HAVE_SYSCONF
643 # define SSH_SYSFDMAX sysconf(_SC_OPEN_MAX)
644 #else
645 # define SSH_SYSFDMAX 10000
646 #endif
647 
648 #ifdef FSID_HAS_VAL
649 /* encode f_fsid into a 64 bit value  */
650 #define FSID_TO_ULONG(f) \
651 	((((u_int64_t)(f).val[0] & 0xffffffffUL) << 32) | \
652 	    ((f).val[1] & 0xffffffffUL))
653 #elif defined(FSID_HAS___VAL)
654 #define FSID_TO_ULONG(f) \
655 	((((u_int64_t)(f).__val[0] & 0xffffffffUL) << 32) | \
656 	    ((f).__val[1] & 0xffffffffUL))
657 #else
658 # define FSID_TO_ULONG(f) ((f))
659 #endif
660 
661 #if defined(__Lynx__)
662  /*
663   * LynxOS defines these in param.h which we do not want to include since
664   * it will also pull in a bunch of kernel definitions.
665   */
666 # define ALIGNBYTES (sizeof(int) - 1)
667 # define ALIGN(p) (((unsigned)p + ALIGNBYTES) & ~ALIGNBYTES)
668   /* Missing prototypes on LynxOS */
669   int snprintf (char *, size_t, const char *, ...);
670   int mkstemp (char *);
671   char *crypt (const char *, const char *);
672   int seteuid (uid_t);
673   int setegid (gid_t);
674   char *mkdtemp (char *);
675   int rresvport_af (int *, sa_family_t);
676   int innetgr (const char *, const char *, const char *, const char *);
677 #endif
678 
679 /*
680  * Define this to use pipes instead of socketpairs for communicating with the
681  * client program.  Socketpairs do not seem to work on all systems.
682  *
683  * configure.ac sets this for a few OS's which are known to have problems
684  * but you may need to set it yourself
685  */
686 /* #define USE_PIPES 1 */
687 
688 /**
689  ** login recorder definitions
690  **/
691 
692 /* FIXME: put default paths back in */
693 #ifndef UTMP_FILE
694 #  ifdef _PATH_UTMP
695 #    define UTMP_FILE _PATH_UTMP
696 #  else
697 #    ifdef CONF_UTMP_FILE
698 #      define UTMP_FILE CONF_UTMP_FILE
699 #    endif
700 #  endif
701 #endif
702 #ifndef WTMP_FILE
703 #  ifdef _PATH_WTMP
704 #    define WTMP_FILE _PATH_WTMP
705 #  else
706 #    ifdef CONF_WTMP_FILE
707 #      define WTMP_FILE CONF_WTMP_FILE
708 #    endif
709 #  endif
710 #endif
711 /* pick up the user's location for lastlog if given */
712 #ifndef LASTLOG_FILE
713 #  ifdef _PATH_LASTLOG
714 #    define LASTLOG_FILE _PATH_LASTLOG
715 #  else
716 #    ifdef CONF_LASTLOG_FILE
717 #      define LASTLOG_FILE CONF_LASTLOG_FILE
718 #    endif
719 #  endif
720 #endif
721 
722 #if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
723 # define USE_SHADOW
724 #endif
725 
726 /* The login() library function in libutil is first choice */
727 #if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN)
728 #  define USE_LOGIN
729 
730 #else
731 /* Simply select your favourite login types. */
732 /* Can't do if-else because some systems use several... <sigh> */
733 #  if !defined(DISABLE_UTMPX)
734 #    define USE_UTMPX
735 #  endif
736 #  if defined(UTMP_FILE) && !defined(DISABLE_UTMP)
737 #    define USE_UTMP
738 #  endif
739 #  if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX)
740 #    define USE_WTMPX
741 #  endif
742 #  if defined(WTMP_FILE) && !defined(DISABLE_WTMP)
743 #    define USE_WTMP
744 #  endif
745 
746 #endif
747 
748 #ifndef UT_LINESIZE
749 # define UT_LINESIZE 8
750 #endif
751 
752 /* I hope that the presence of LASTLOG_FILE is enough to detect this */
753 #if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG)
754 #  define USE_LASTLOG
755 #endif
756 
757 #ifdef HAVE_OSF_SIA
758 # ifdef USE_SHADOW
759 #  undef USE_SHADOW
760 # endif
761 # define CUSTOM_SYS_AUTH_PASSWD 1
762 #endif
763 
764 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(HAVE_SECUREWARE)
765 # define CUSTOM_SYS_AUTH_PASSWD 1
766 #endif
767 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(BROKEN_LIBIAF)
768 # define USE_LIBIAF
769 #endif
770 
771 /* HP-UX 11.11 */
772 #ifdef BTMP_FILE
773 # define _PATH_BTMP BTMP_FILE
774 #endif
775 
776 #if defined(USE_BTMP) && defined(_PATH_BTMP)
777 # define CUSTOM_FAILED_LOGIN
778 #endif
779 
780 /** end of login recorder definitions */
781 
782 #ifdef BROKEN_GETGROUPS
783 # define getgroups(a,b) ((a)==0 && (b)==NULL ? NGROUPS_MAX : getgroups((a),(b)))
784 #endif
785 
786 #if defined(HAVE_MMAP) && defined(BROKEN_MMAP)
787 # undef HAVE_MMAP
788 #endif
789 
790 #ifndef IOV_MAX
791 # if defined(_XOPEN_IOV_MAX)
792 #  define	IOV_MAX		_XOPEN_IOV_MAX
793 # elif defined(DEF_IOV_MAX)
794 #  define	IOV_MAX		DEF_IOV_MAX
795 # else
796 #  define	IOV_MAX		16
797 # endif
798 #endif
799 
800 #ifndef EWOULDBLOCK
801 # define EWOULDBLOCK EAGAIN
802 #endif
803 
804 #ifndef INET6_ADDRSTRLEN	/* for non IPv6 machines */
805 #define INET6_ADDRSTRLEN 46
806 #endif
807 
808 #ifndef SSH_IOBUFSZ
809 # define SSH_IOBUFSZ 8192
810 #endif
811 
812 #ifndef _NSIG
813 # ifdef NSIG
814 #  define _NSIG NSIG
815 # else
816 #  define _NSIG 128
817 # endif
818 #endif
819 
820 /*
821  * Platforms that have arc4random_uniform() and not arc4random_stir()
822  * shouldn't need the latter.
823  */
824 #if defined(HAVE_ARC4RANDOM) && defined(HAVE_ARC4RANDOM_UNIFORM) && \
825     !defined(HAVE_ARC4RANDOM_STIR)
826 # define arc4random_stir()
827 #endif
828 
829 #endif /* _DEFINES_H */
830