xref: /freebsd/crypto/openssh/defines.h (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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 1.138 2006/09/21 13:13:30 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 #ifndef IPTOS_LOWDELAY
46 # define IPTOS_LOWDELAY          0x10
47 # define IPTOS_THROUGHPUT        0x08
48 # define IPTOS_RELIABILITY       0x04
49 # define IPTOS_LOWCOST           0x02
50 # define IPTOS_MINCOST           IPTOS_LOWCOST
51 #endif /* IPTOS_LOWDELAY */
52 
53 #ifndef MAXPATHLEN
54 # ifdef PATH_MAX
55 #  define MAXPATHLEN PATH_MAX
56 # else /* PATH_MAX */
57 #  define MAXPATHLEN 64
58 /* realpath uses a fixed buffer of size MAXPATHLEN, so force use of ours */
59 #  ifndef BROKEN_REALPATH
60 #   define BROKEN_REALPATH 1
61 #  endif /* BROKEN_REALPATH */
62 # endif /* PATH_MAX */
63 #endif /* MAXPATHLEN */
64 
65 #ifndef PATH_MAX
66 # ifdef _POSIX_PATH_MAX
67 # define PATH_MAX _POSIX_PATH_MAX
68 # endif
69 #endif
70 
71 #ifndef MAXSYMLINKS
72 # define MAXSYMLINKS 5
73 #endif
74 
75 #ifndef STDIN_FILENO
76 # define STDIN_FILENO    0
77 #endif
78 #ifndef STDOUT_FILENO
79 # define STDOUT_FILENO   1
80 #endif
81 #ifndef STDERR_FILENO
82 # define STDERR_FILENO   2
83 #endif
84 
85 #ifndef NGROUPS_MAX	/* Disable groupaccess if NGROUP_MAX is not set */
86 #ifdef NGROUPS
87 #define NGROUPS_MAX NGROUPS
88 #else
89 #define NGROUPS_MAX 0
90 #endif
91 #endif
92 
93 #if defined(HAVE_DECL_O_NONBLOCK) && HAVE_DECL_O_NONBLOCK == 0
94 # define O_NONBLOCK      00004	/* Non Blocking Open */
95 #endif
96 
97 #ifndef S_ISDIR
98 # define S_ISDIR(mode)	(((mode) & (_S_IFMT)) == (_S_IFDIR))
99 #endif /* S_ISDIR */
100 
101 #ifndef S_ISREG
102 # define S_ISREG(mode)	(((mode) & (_S_IFMT)) == (_S_IFREG))
103 #endif /* S_ISREG */
104 
105 #ifndef S_ISLNK
106 # define S_ISLNK(mode)	(((mode) & S_IFMT) == S_IFLNK)
107 #endif /* S_ISLNK */
108 
109 #ifndef S_IXUSR
110 # define S_IXUSR			0000100	/* execute/search permission, */
111 # define S_IXGRP			0000010	/* execute/search permission, */
112 # define S_IXOTH			0000001	/* execute/search permission, */
113 # define _S_IWUSR			0000200	/* write permission, */
114 # define S_IWUSR			_S_IWUSR	/* write permission, owner */
115 # define S_IWGRP			0000020	/* write permission, group */
116 # define S_IWOTH			0000002	/* write permission, other */
117 # define S_IRUSR			0000400	/* read permission, owner */
118 # define S_IRGRP			0000040	/* read permission, group */
119 # define S_IROTH			0000004	/* read permission, other */
120 # define S_IRWXU			0000700	/* read, write, execute */
121 # define S_IRWXG			0000070	/* read, write, execute */
122 # define S_IRWXO			0000007	/* read, write, execute */
123 #endif /* S_IXUSR */
124 
125 #if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
126 #define MAP_ANON MAP_ANONYMOUS
127 #endif
128 
129 #ifndef MAP_FAILED
130 # define MAP_FAILED ((void *)-1)
131 #endif
132 
133 /* *-*-nto-qnx doesn't define this constant in the system headers */
134 #ifdef MISSING_NFDBITS
135 # define	NFDBITS (8 * sizeof(unsigned long))
136 #endif
137 
138 /*
139 SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but
140 including rpc/rpc.h breaks Solaris 6
141 */
142 #ifndef INADDR_LOOPBACK
143 #define INADDR_LOOPBACK ((u_long)0x7f000001)
144 #endif
145 
146 /* Types */
147 
148 /* If sys/types.h does not supply intXX_t, supply them ourselves */
149 /* (or die trying) */
150 
151 #ifndef HAVE_U_INT
152 typedef unsigned int u_int;
153 #endif
154 
155 #ifndef HAVE_INTXX_T
156 # if (SIZEOF_CHAR == 1)
157 typedef char int8_t;
158 # else
159 #  error "8 bit int type not found."
160 # endif
161 # if (SIZEOF_SHORT_INT == 2)
162 typedef short int int16_t;
163 # else
164 #  ifdef _UNICOS
165 #   if (SIZEOF_SHORT_INT == 4)
166 typedef short int16_t;
167 #   else
168 typedef long  int16_t;
169 #   endif
170 #  else
171 #   error "16 bit int type not found."
172 #  endif /* _UNICOS */
173 # endif
174 # if (SIZEOF_INT == 4)
175 typedef int int32_t;
176 # else
177 #  ifdef _UNICOS
178 typedef long  int32_t;
179 #  else
180 #   error "32 bit int type not found."
181 #  endif /* _UNICOS */
182 # endif
183 #endif
184 
185 /* If sys/types.h does not supply u_intXX_t, supply them ourselves */
186 #ifndef HAVE_U_INTXX_T
187 # ifdef HAVE_UINTXX_T
188 typedef uint8_t u_int8_t;
189 typedef uint16_t u_int16_t;
190 typedef uint32_t u_int32_t;
191 # define HAVE_U_INTXX_T 1
192 # else
193 #  if (SIZEOF_CHAR == 1)
194 typedef unsigned char u_int8_t;
195 #  else
196 #   error "8 bit int type not found."
197 #  endif
198 #  if (SIZEOF_SHORT_INT == 2)
199 typedef unsigned short int u_int16_t;
200 #  else
201 #   ifdef _UNICOS
202 #    if (SIZEOF_SHORT_INT == 4)
203 typedef unsigned short u_int16_t;
204 #    else
205 typedef unsigned long  u_int16_t;
206 #    endif
207 #   else
208 #    error "16 bit int type not found."
209 #   endif
210 #  endif
211 #  if (SIZEOF_INT == 4)
212 typedef unsigned int u_int32_t;
213 #  else
214 #   ifdef _UNICOS
215 typedef unsigned long  u_int32_t;
216 #   else
217 #    error "32 bit int type not found."
218 #   endif
219 #  endif
220 # endif
221 #define __BIT_TYPES_DEFINED__
222 #endif
223 
224 /* 64-bit types */
225 #ifndef HAVE_INT64_T
226 # if (SIZEOF_LONG_INT == 8)
227 typedef long int int64_t;
228 # else
229 #  if (SIZEOF_LONG_LONG_INT == 8)
230 typedef long long int int64_t;
231 #  endif
232 # endif
233 #endif
234 #ifndef HAVE_U_INT64_T
235 # if (SIZEOF_LONG_INT == 8)
236 typedef unsigned long int u_int64_t;
237 # else
238 #  if (SIZEOF_LONG_LONG_INT == 8)
239 typedef unsigned long long int u_int64_t;
240 #  endif
241 # endif
242 #endif
243 
244 #ifndef HAVE_U_CHAR
245 typedef unsigned char u_char;
246 # define HAVE_U_CHAR
247 #endif /* HAVE_U_CHAR */
248 
249 #ifndef SIZE_T_MAX
250 #define SIZE_T_MAX ULONG_MAX
251 #endif /* SIZE_T_MAX */
252 
253 #ifndef HAVE_SIZE_T
254 typedef unsigned int size_t;
255 # define HAVE_SIZE_T
256 # define SIZE_T_MAX UINT_MAX
257 #endif /* HAVE_SIZE_T */
258 
259 #ifndef HAVE_SSIZE_T
260 typedef int ssize_t;
261 # define HAVE_SSIZE_T
262 #endif /* HAVE_SSIZE_T */
263 
264 #ifndef HAVE_CLOCK_T
265 typedef long clock_t;
266 # define HAVE_CLOCK_T
267 #endif /* HAVE_CLOCK_T */
268 
269 #ifndef HAVE_SA_FAMILY_T
270 typedef int sa_family_t;
271 # define HAVE_SA_FAMILY_T
272 #endif /* HAVE_SA_FAMILY_T */
273 
274 #ifndef HAVE_PID_T
275 typedef int pid_t;
276 # define HAVE_PID_T
277 #endif /* HAVE_PID_T */
278 
279 #ifndef HAVE_SIG_ATOMIC_T
280 typedef int sig_atomic_t;
281 # define HAVE_SIG_ATOMIC_T
282 #endif /* HAVE_SIG_ATOMIC_T */
283 
284 #ifndef HAVE_MODE_T
285 typedef int mode_t;
286 # define HAVE_MODE_T
287 #endif /* HAVE_MODE_T */
288 
289 #if !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE___SS_FAMILY_IN_SS)
290 # define ss_family __ss_family
291 #endif /* !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE_SA_FAMILY_IN_SS) */
292 
293 #ifndef HAVE_SYS_UN_H
294 struct	sockaddr_un {
295 	short	sun_family;		/* AF_UNIX */
296 	char	sun_path[108];		/* path name (gag) */
297 };
298 #endif /* HAVE_SYS_UN_H */
299 
300 #ifndef HAVE_IN_ADDR_T
301 typedef u_int32_t	in_addr_t;
302 #endif
303 
304 #if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE)
305 #define _STRUCT_WINSIZE
306 struct winsize {
307       unsigned short ws_row;          /* rows, in characters */
308       unsigned short ws_col;          /* columns, in character */
309       unsigned short ws_xpixel;       /* horizontal size, pixels */
310       unsigned short ws_ypixel;       /* vertical size, pixels */
311 };
312 #endif
313 
314 /* *-*-nto-qnx does not define this type in the system headers */
315 #ifdef MISSING_FD_MASK
316  typedef unsigned long int	fd_mask;
317 #endif
318 
319 /* Paths */
320 
321 #ifndef _PATH_BSHELL
322 # define _PATH_BSHELL "/bin/sh"
323 #endif
324 #ifndef _PATH_CSHELL
325 # define _PATH_CSHELL "/bin/csh"
326 #endif
327 #ifndef _PATH_SHELLS
328 # define _PATH_SHELLS "/etc/shells"
329 #endif
330 
331 #ifdef USER_PATH
332 # ifdef _PATH_STDPATH
333 #  undef _PATH_STDPATH
334 # endif
335 # define _PATH_STDPATH USER_PATH
336 #endif
337 
338 #ifndef _PATH_STDPATH
339 # define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
340 #endif
341 
342 #ifndef SUPERUSER_PATH
343 # define SUPERUSER_PATH	_PATH_STDPATH
344 #endif
345 
346 #ifndef _PATH_DEVNULL
347 # define _PATH_DEVNULL "/dev/null"
348 #endif
349 
350 #ifndef MAIL_DIRECTORY
351 # define MAIL_DIRECTORY "/var/spool/mail"
352 #endif
353 
354 #ifndef MAILDIR
355 # define MAILDIR MAIL_DIRECTORY
356 #endif
357 
358 #if !defined(_PATH_MAILDIR) && defined(MAILDIR)
359 # define _PATH_MAILDIR MAILDIR
360 #endif /* !defined(_PATH_MAILDIR) && defined(MAILDIR) */
361 
362 #ifndef _PATH_NOLOGIN
363 # define _PATH_NOLOGIN "/etc/nologin"
364 #endif
365 
366 /* Define this to be the path of the xauth program. */
367 #ifdef XAUTH_PATH
368 #define _PATH_XAUTH XAUTH_PATH
369 #endif /* XAUTH_PATH */
370 
371 /* derived from XF4/xc/lib/dps/Xlibnet.h */
372 #ifndef X_UNIX_PATH
373 #  ifdef __hpux
374 #    define X_UNIX_PATH "/var/spool/sockets/X11/%u"
375 #  else
376 #    define X_UNIX_PATH "/tmp/.X11-unix/X%u"
377 #  endif
378 #endif /* X_UNIX_PATH */
379 #define _PATH_UNIX_X X_UNIX_PATH
380 
381 #ifndef _PATH_TTY
382 # define _PATH_TTY "/dev/tty"
383 #endif
384 
385 /* Macros */
386 
387 #if defined(HAVE_LOGIN_GETCAPBOOL) && defined(HAVE_LOGIN_CAP_H)
388 # define HAVE_LOGIN_CAP
389 #endif
390 
391 #ifndef MAX
392 # define MAX(a,b) (((a)>(b))?(a):(b))
393 # define MIN(a,b) (((a)<(b))?(a):(b))
394 #endif
395 
396 #ifndef roundup
397 # define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
398 #endif
399 
400 #ifndef timersub
401 #define timersub(a, b, result)					\
402    do {								\
403       (result)->tv_sec = (a)->tv_sec - (b)->tv_sec;		\
404       (result)->tv_usec = (a)->tv_usec - (b)->tv_usec;		\
405       if ((result)->tv_usec < 0) {				\
406 	 --(result)->tv_sec;					\
407 	 (result)->tv_usec += 1000000;				\
408       }								\
409    } while (0)
410 #endif
411 
412 #ifndef TIMEVAL_TO_TIMESPEC
413 #define	TIMEVAL_TO_TIMESPEC(tv, ts) {					\
414 	(ts)->tv_sec = (tv)->tv_sec;					\
415 	(ts)->tv_nsec = (tv)->tv_usec * 1000;				\
416 }
417 #endif
418 
419 #ifndef TIMESPEC_TO_TIMEVAL
420 #define	TIMESPEC_TO_TIMEVAL(tv, ts) {					\
421 	(tv)->tv_sec = (ts)->tv_sec;					\
422 	(tv)->tv_usec = (ts)->tv_nsec / 1000;				\
423 }
424 #endif
425 
426 #ifndef __P
427 # define __P(x) x
428 #endif
429 
430 #if !defined(IN6_IS_ADDR_V4MAPPED)
431 # define IN6_IS_ADDR_V4MAPPED(a) \
432 	((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \
433 	 (((u_int32_t *) (a))[2] == htonl (0xffff)))
434 #endif /* !defined(IN6_IS_ADDR_V4MAPPED) */
435 
436 #if !defined(__GNUC__) || (__GNUC__ < 2)
437 # define __attribute__(x)
438 #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
439 
440 #ifndef __dead
441 # define __dead	__attribute__((noreturn))
442 #endif
443 
444 #if !defined(HAVE_ATTRIBUTE__SENTINEL__) && !defined(__sentinel__)
445 # define __sentinel__
446 #endif
447 
448 #if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__bounded__)
449 # define __bounded__(x, y, z)
450 #endif
451 
452 /* *-*-nto-qnx doesn't define this macro in the system headers */
453 #ifdef MISSING_HOWMANY
454 # define howmany(x,y)	(((x)+((y)-1))/(y))
455 #endif
456 
457 #ifndef OSSH_ALIGNBYTES
458 #define OSSH_ALIGNBYTES	(sizeof(int) - 1)
459 #endif
460 #ifndef __CMSG_ALIGN
461 #define	__CMSG_ALIGN(p) (((u_int)(p) + OSSH_ALIGNBYTES) &~ OSSH_ALIGNBYTES)
462 #endif
463 
464 /* Length of the contents of a control message of length len */
465 #ifndef CMSG_LEN
466 #define	CMSG_LEN(len)	(__CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
467 #endif
468 
469 /* Length of the space taken up by a padded control message of length len */
470 #ifndef CMSG_SPACE
471 #define	CMSG_SPACE(len)	(__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(len))
472 #endif
473 
474 /* given pointer to struct cmsghdr, return pointer to data */
475 #ifndef CMSG_DATA
476 #define CMSG_DATA(cmsg) ((u_char *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
477 #endif /* CMSG_DATA */
478 
479 /*
480  * RFC 2292 requires to check msg_controllen, in case that the kernel returns
481  * an empty list for some reasons.
482  */
483 #ifndef CMSG_FIRSTHDR
484 #define CMSG_FIRSTHDR(mhdr) \
485 	((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
486 	 (struct cmsghdr *)(mhdr)->msg_control : \
487 	 (struct cmsghdr *)NULL)
488 #endif /* CMSG_FIRSTHDR */
489 
490 #ifndef offsetof
491 # define offsetof(type, member) ((size_t) &((type *)0)->member)
492 #endif
493 
494 /* Set up BSD-style BYTE_ORDER definition if it isn't there already */
495 /* XXX: doesn't try to cope with strange byte orders (PDP_ENDIAN) */
496 #ifndef BYTE_ORDER
497 # ifndef LITTLE_ENDIAN
498 #  define LITTLE_ENDIAN  1234
499 # endif /* LITTLE_ENDIAN */
500 # ifndef BIG_ENDIAN
501 #  define BIG_ENDIAN     4321
502 # endif /* BIG_ENDIAN */
503 # ifdef WORDS_BIGENDIAN
504 #  define BYTE_ORDER BIG_ENDIAN
505 # else /* WORDS_BIGENDIAN */
506 #  define BYTE_ORDER LITTLE_ENDIAN
507 # endif /* WORDS_BIGENDIAN */
508 #endif /* BYTE_ORDER */
509 
510 /* Function replacement / compatibility hacks */
511 
512 #if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO))
513 # define HAVE_GETADDRINFO
514 #endif
515 
516 #ifndef HAVE_GETOPT_OPTRESET
517 # undef getopt
518 # undef opterr
519 # undef optind
520 # undef optopt
521 # undef optreset
522 # undef optarg
523 # define getopt(ac, av, o)  BSDgetopt(ac, av, o)
524 # define opterr             BSDopterr
525 # define optind             BSDoptind
526 # define optopt             BSDoptopt
527 # define optreset           BSDoptreset
528 # define optarg             BSDoptarg
529 #endif
530 
531 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO)
532 # undef HAVE_GETADDRINFO
533 #endif
534 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_FREEADDRINFO)
535 # undef HAVE_FREEADDRINFO
536 #endif
537 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GAI_STRERROR)
538 # undef HAVE_GAI_STRERROR
539 #endif
540 
541 #if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX)
542 # undef HAVE_UPDWTMPX
543 #endif
544 
545 #if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT) && \
546     defined(SYSLOG_R_SAFE_IN_SIGHAND)
547 # define DO_LOG_SAFE_IN_SIGHAND
548 #endif
549 
550 #if !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY)
551 # define memmove(s1, s2, n) bcopy((s2), (s1), (n))
552 #endif /* !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY) */
553 
554 #if defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX)
555 #  define USE_VHANGUP
556 #endif /* defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX) */
557 
558 #ifndef GETPGRP_VOID
559 # include <unistd.h>
560 # define getpgrp() getpgrp(0)
561 #endif
562 
563 #ifdef USE_BSM_AUDIT
564 # define SSH_AUDIT_EVENTS
565 # define CUSTOM_SSH_AUDIT_EVENTS
566 #endif
567 
568 /* OPENSSL_free() is Free() in versions before OpenSSL 0.9.6 */
569 #if !defined(OPENSSL_VERSION_NUMBER) || (OPENSSL_VERSION_NUMBER < 0x0090600f)
570 # define OPENSSL_free(x) Free(x)
571 #endif
572 
573 #if !defined(HAVE___func__) && defined(HAVE___FUNCTION__)
574 #  define __func__ __FUNCTION__
575 #elif !defined(HAVE___func__)
576 #  define __func__ ""
577 #endif
578 
579 #if defined(KRB5) && !defined(HEIMDAL)
580 #  define krb5_get_err_text(context,code) error_message(code)
581 #endif
582 
583 #if defined(SKEYCHALLENGE_4ARG)
584 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c,d)
585 #else
586 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c)
587 #endif
588 
589 /* Maximum number of file descriptors available */
590 #ifdef HAVE_SYSCONF
591 # define SSH_SYSFDMAX sysconf(_SC_OPEN_MAX)
592 #else
593 # define SSH_SYSFDMAX 10000
594 #endif
595 
596 #if defined(__Lynx__)
597  /*
598   * LynxOS defines these in param.h which we do not want to include since
599   * it will also pull in a bunch of kernel definitions.
600   */
601 # define ALIGNBYTES (sizeof(int) - 1)
602 # define ALIGN(p) (((unsigned)p + ALIGNBYTES) & ~ALIGNBYTES)
603   /* Missing prototypes on LynxOS */
604   int snprintf (char *, size_t, const char *, ...);
605   int mkstemp (char *);
606   char *crypt (const char *, const char *);
607   int seteuid (uid_t);
608   int setegid (gid_t);
609   char *mkdtemp (char *);
610   int rresvport_af (int *, sa_family_t);
611   int innetgr (const char *, const char *, const char *, const char *);
612 #endif
613 
614 /*
615  * Define this to use pipes instead of socketpairs for communicating with the
616  * client program.  Socketpairs do not seem to work on all systems.
617  *
618  * configure.ac sets this for a few OS's which are known to have problems
619  * but you may need to set it yourself
620  */
621 /* #define USE_PIPES 1 */
622 
623 /**
624  ** login recorder definitions
625  **/
626 
627 /* FIXME: put default paths back in */
628 #ifndef UTMP_FILE
629 #  ifdef _PATH_UTMP
630 #    define UTMP_FILE _PATH_UTMP
631 #  else
632 #    ifdef CONF_UTMP_FILE
633 #      define UTMP_FILE CONF_UTMP_FILE
634 #    endif
635 #  endif
636 #endif
637 #ifndef WTMP_FILE
638 #  ifdef _PATH_WTMP
639 #    define WTMP_FILE _PATH_WTMP
640 #  else
641 #    ifdef CONF_WTMP_FILE
642 #      define WTMP_FILE CONF_WTMP_FILE
643 #    endif
644 #  endif
645 #endif
646 /* pick up the user's location for lastlog if given */
647 #ifndef LASTLOG_FILE
648 #  ifdef _PATH_LASTLOG
649 #    define LASTLOG_FILE _PATH_LASTLOG
650 #  else
651 #    ifdef CONF_LASTLOG_FILE
652 #      define LASTLOG_FILE CONF_LASTLOG_FILE
653 #    endif
654 #  endif
655 #endif
656 
657 #if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
658 # define USE_SHADOW
659 #endif
660 
661 /* The login() library function in libutil is first choice */
662 #if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN)
663 #  define USE_LOGIN
664 
665 #else
666 /* Simply select your favourite login types. */
667 /* Can't do if-else because some systems use several... <sigh> */
668 #  if defined(UTMPX_FILE) && !defined(DISABLE_UTMPX)
669 #    define USE_UTMPX
670 #  endif
671 #  if defined(UTMP_FILE) && !defined(DISABLE_UTMP)
672 #    define USE_UTMP
673 #  endif
674 #  if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX)
675 #    define USE_WTMPX
676 #  endif
677 #  if defined(WTMP_FILE) && !defined(DISABLE_WTMP)
678 #    define USE_WTMP
679 #  endif
680 
681 #endif
682 
683 #ifndef UT_LINESIZE
684 # define UT_LINESIZE 8
685 #endif
686 
687 /* I hope that the presence of LASTLOG_FILE is enough to detect this */
688 #if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG)
689 #  define USE_LASTLOG
690 #endif
691 
692 #ifdef HAVE_OSF_SIA
693 # ifdef USE_SHADOW
694 #  undef USE_SHADOW
695 # endif
696 # define CUSTOM_SYS_AUTH_PASSWD 1
697 #endif
698 
699 #ifdef HAVE_LIBIAF
700 # define CUSTOM_SYS_AUTH_PASSWD 1
701 #endif
702 
703 /* HP-UX 11.11 */
704 #ifdef BTMP_FILE
705 # define _PATH_BTMP BTMP_FILE
706 #endif
707 
708 #if defined(USE_BTMP) && defined(_PATH_BTMP)
709 # define CUSTOM_FAILED_LOGIN
710 #endif
711 
712 /** end of login recorder definitions */
713 
714 #ifdef BROKEN_GETGROUPS
715 # define getgroups(a,b) ((a)==0 && (b)==NULL ? NGROUPS_MAX : getgroups((a),(b)))
716 #endif
717 
718 #if defined(HAVE_MMAP) && defined(BROKEN_MMAP)
719 # undef HAVE_MMAP
720 #endif
721 
722 #ifndef IOV_MAX
723 # if defined(_XOPEN_IOV_MAX)
724 #  define	IOV_MAX		_XOPEN_IOV_MAX
725 # elif defined(DEF_IOV_MAX)
726 #  define	IOV_MAX		DEF_IOV_MAX
727 # else
728 #  define	IOV_MAX		16
729 # endif
730 #endif
731 
732 #endif /* _DEFINES_H */
733