Grid Community Toolkit  6.2.1705709074 (tag: v6.2.20240202)
 All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
defines.h
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 RFCs 2474, 3246, 4594 & 8622.
70  * These are the 6 most significant bits as they appear on the wire, so the
71  * two least significant bits must be zero.
72  */
73 #ifndef IPTOS_DSCP_AF11
74 # define IPTOS_DSCP_AF11 0x28
75 # define IPTOS_DSCP_AF12 0x30
76 # define IPTOS_DSCP_AF13 0x38
77 # define IPTOS_DSCP_AF21 0x48
78 # define IPTOS_DSCP_AF22 0x50
79 # define IPTOS_DSCP_AF23 0x58
80 # define IPTOS_DSCP_AF31 0x68
81 # define IPTOS_DSCP_AF32 0x70
82 # define IPTOS_DSCP_AF33 0x78
83 # define IPTOS_DSCP_AF41 0x88
84 # define IPTOS_DSCP_AF42 0x90
85 # define IPTOS_DSCP_AF43 0x98
86 # define IPTOS_DSCP_EF 0xb8
87 #endif /* IPTOS_DSCP_AF11 */
88 #ifndef IPTOS_DSCP_CS0
89 # define IPTOS_DSCP_CS0 0x00
90 # define IPTOS_DSCP_CS1 0x20
91 # define IPTOS_DSCP_CS2 0x40
92 # define IPTOS_DSCP_CS3 0x60
93 # define IPTOS_DSCP_CS4 0x80
94 # define IPTOS_DSCP_CS5 0xa0
95 # define IPTOS_DSCP_CS6 0xc0
96 # define IPTOS_DSCP_CS7 0xe0
97 #endif /* IPTOS_DSCP_CS0 */
98 #ifndef IPTOS_DSCP_EF
99 # define IPTOS_DSCP_EF 0xb8
100 #endif /* IPTOS_DSCP_EF */
101 #ifndef IPTOS_DSCP_LE
102 # define IPTOS_DSCP_LE 0x04
103 #endif /* IPTOS_DSCP_LE */
104 #ifndef IPTOS_PREC_CRITIC_ECP
105 # define IPTOS_PREC_CRITIC_ECP 0xa0
106 #endif
107 #ifndef IPTOS_PREC_INTERNETCONTROL
108 # define IPTOS_PREC_INTERNETCONTROL 0xc0
109 #endif
110 #ifndef IPTOS_PREC_NETCONTROL
111 # define IPTOS_PREC_NETCONTROL 0xe0
112 #endif
113 
114 #ifndef PATH_MAX
115 # ifdef _POSIX_PATH_MAX
116 # define PATH_MAX _POSIX_PATH_MAX
117 # endif
118 #endif
119 
120 #ifndef MAXPATHLEN
121 # ifdef PATH_MAX
122 # define MAXPATHLEN PATH_MAX
123 # else /* PATH_MAX */
124 # define MAXPATHLEN 64
125 # endif /* PATH_MAX */
126 #endif /* MAXPATHLEN */
127 
128 #ifndef HOST_NAME_MAX
129 # include "netdb.h" /* for MAXHOSTNAMELEN */
130 # if defined(_POSIX_HOST_NAME_MAX)
131 # define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
132 # elif defined(MAXHOSTNAMELEN)
133 # define HOST_NAME_MAX MAXHOSTNAMELEN
134 # else
135 # define HOST_NAME_MAX 255
136 # endif
137 #endif /* HOST_NAME_MAX */
138 
139 #if defined(HAVE_DECL_MAXSYMLINKS) && HAVE_DECL_MAXSYMLINKS == 0
140 # define MAXSYMLINKS 5
141 #endif
142 
143 #ifndef STDIN_FILENO
144 # define STDIN_FILENO 0
145 #endif
146 #ifndef STDOUT_FILENO
147 # define STDOUT_FILENO 1
148 #endif
149 #ifndef STDERR_FILENO
150 # define STDERR_FILENO 2
151 #endif
152 
153 #ifndef NGROUPS_MAX /* Disable groupaccess if NGROUP_MAX is not set */
154 #ifdef NGROUPS
155 #define NGROUPS_MAX NGROUPS
156 #else
157 #define NGROUPS_MAX 0
158 #endif
159 #endif
160 
161 #if defined(HAVE_DECL_O_NONBLOCK) && HAVE_DECL_O_NONBLOCK == 0
162 # define O_NONBLOCK 00004 /* Non Blocking Open */
163 #endif
164 
165 #ifndef S_IFSOCK
166 # define S_IFSOCK 0
167 #endif /* S_IFSOCK */
168 
169 #ifndef S_ISDIR
170 # define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
171 #endif /* S_ISDIR */
172 
173 #ifndef S_ISREG
174 # define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
175 #endif /* S_ISREG */
176 
177 #ifndef S_ISLNK
178 # define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
179 #endif /* S_ISLNK */
180 
181 #ifndef S_IXUSR
182 # define S_IXUSR 0000100 /* execute/search permission, */
183 # define S_IXGRP 0000010 /* execute/search permission, */
184 # define S_IXOTH 0000001 /* execute/search permission, */
185 # define _S_IWUSR 0000200 /* write permission, */
186 # define S_IWUSR _S_IWUSR /* write permission, owner */
187 # define S_IWGRP 0000020 /* write permission, group */
188 # define S_IWOTH 0000002 /* write permission, other */
189 # define S_IRUSR 0000400 /* read permission, owner */
190 # define S_IRGRP 0000040 /* read permission, group */
191 # define S_IROTH 0000004 /* read permission, other */
192 # define S_IRWXU 0000700 /* read, write, execute */
193 # define S_IRWXG 0000070 /* read, write, execute */
194 # define S_IRWXO 0000007 /* read, write, execute */
195 #endif /* S_IXUSR */
196 
197 #if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
198 #define MAP_ANON MAP_ANONYMOUS
199 #endif
200 
201 #ifndef MAP_FAILED
202 # define MAP_FAILED ((void *)-1)
203 #endif
204 
205 /*
206 SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but
207 including rpc/rpc.h breaks Solaris 6
208 */
209 #ifndef INADDR_LOOPBACK
210 #define INADDR_LOOPBACK ((u_long)0x7f000001)
211 #endif
212 
213 /* Types */
214 
215 /* If sys/types.h does not supply intXX_t, supply them ourselves */
216 /* (or die trying) */
217 
218 #ifndef HAVE_U_INT
219 typedef unsigned int u_int;
220 #endif
221 
222 #ifndef HAVE_INTXX_T
223 typedef signed char int8_t;
224 # if (SIZEOF_SHORT_INT == 2)
225 typedef short int int16_t;
226 # else
227 # error "16 bit int type not found."
228 # endif
229 # if (SIZEOF_INT == 4)
230 typedef int int32_t;
231 # else
232 # error "32 bit int type not found."
233 # endif
234 #endif
235 
236 /* If sys/types.h does not supply u_intXX_t, supply them ourselves */
237 #ifndef HAVE_U_INTXX_T
238 # ifdef HAVE_UINTXX_T
239 typedef uint8_t u_int8_t;
240 typedef uint16_t u_int16_t;
241 typedef uint32_t u_int32_t;
242 # define HAVE_U_INTXX_T 1
243 # else
244 typedef unsigned char u_int8_t;
245 # if (SIZEOF_SHORT_INT == 2)
246 typedef unsigned short int u_int16_t;
247 # else
248 # error "16 bit int type not found."
249 # endif
250 # if (SIZEOF_INT == 4)
251 typedef unsigned int u_int32_t;
252 # else
253 # error "32 bit int type not found."
254 # endif
255 # endif
256 #define __BIT_TYPES_DEFINED__
257 #endif
258 
259 #if !defined(LLONG_MIN) && defined(LONG_LONG_MIN)
260 #define LLONG_MIN LONG_LONG_MIN
261 #endif
262 #if !defined(LLONG_MAX) && defined(LONG_LONG_MAX)
263 #define LLONG_MAX LONG_LONG_MAX
264 #endif
265 
266 #ifndef UINT32_MAX
267 # if defined(HAVE_DECL_UINT32_MAX) && (HAVE_DECL_UINT32_MAX == 0)
268 # if (SIZEOF_INT == 4)
269 # define UINT32_MAX UINT_MAX
270 # endif
271 # endif
272 #endif
273 
274 /* 64-bit types */
275 #ifndef HAVE_INT64_T
276 # if (SIZEOF_LONG_INT == 8)
277 typedef long int int64_t;
278 # else
279 # if (SIZEOF_LONG_LONG_INT == 8)
280 typedef long long int int64_t;
281 # endif
282 # endif
283 #endif
284 #ifndef HAVE_U_INT64_T
285 # if (SIZEOF_LONG_INT == 8)
286 typedef unsigned long int u_int64_t;
287 # else
288 # if (SIZEOF_LONG_LONG_INT == 8)
289 typedef unsigned long long int u_int64_t;
290 # endif
291 # endif
292 #endif
293 
294 #ifndef HAVE_UINTXX_T
295 typedef u_int8_t uint8_t;
296 typedef u_int16_t uint16_t;
297 typedef u_int32_t uint32_t;
298 typedef u_int64_t uint64_t;
299 #endif
300 
301 #ifndef HAVE_INTMAX_T
302 typedef long long intmax_t;
303 #endif
304 
305 #ifndef HAVE_UINTMAX_T
306 typedef unsigned long long uintmax_t;
307 #endif
308 
309 #if SIZEOF_TIME_T == SIZEOF_LONG_LONG_INT
310 # define SSH_TIME_T_MAX LLONG_MAX
311 #else
312 # define SSH_TIME_T_MAX INT_MAX
313 #endif
314 
315 #ifndef HAVE_U_CHAR
316 typedef unsigned char u_char;
317 # define HAVE_U_CHAR
318 #endif /* HAVE_U_CHAR */
319 
320 #ifndef ULLONG_MAX
321 # define ULLONG_MAX ((unsigned long long)-1)
322 #endif
323 
324 #ifndef SIZE_T_MAX
325 #define SIZE_T_MAX ULONG_MAX
326 #endif /* SIZE_T_MAX */
327 
328 #ifndef HAVE_SIZE_T
329 typedef unsigned int size_t;
330 # define HAVE_SIZE_T
331 # define SIZE_T_MAX UINT_MAX
332 #endif /* HAVE_SIZE_T */
333 
334 #ifndef SIZE_MAX
335 #define SIZE_MAX SIZE_T_MAX
336 #endif
337 
338 #ifndef INT32_MAX
339 # if (SIZEOF_INT == 4)
340 # define INT32_MAX INT_MAX
341 # elif (SIZEOF_LONG == 4)
342 # define INT32_MAX LONG_MAX
343 # else
344 # error "need INT32_MAX"
345 # endif
346 #endif
347 
348 #ifndef INT64_MAX
349 # if (SIZEOF_INT == 8)
350 # define INT64_MAX INT_MAX
351 # elif (SIZEOF_LONG == 8)
352 # define INT64_MAX LONG_MAX
353 # elif (SIZEOF_LONG_LONG_INT == 8)
354 # define INT64_MAX LLONG_MAX
355 # else
356 # error "need INT64_MAX"
357 # endif
358 #endif
359 
360 #ifndef HAVE_SSIZE_T
361 typedef int ssize_t;
362 #define SSIZE_MAX INT_MAX
363 # define HAVE_SSIZE_T
364 #endif /* HAVE_SSIZE_T */
365 
366 #ifndef HAVE_CLOCK_T
367 typedef long clock_t;
368 # define HAVE_CLOCK_T
369 #endif /* HAVE_CLOCK_T */
370 
371 #ifndef HAVE_SA_FAMILY_T
372 typedef int sa_family_t;
373 # define HAVE_SA_FAMILY_T
374 #endif /* HAVE_SA_FAMILY_T */
375 
376 #ifndef HAVE_PID_T
377 typedef int pid_t;
378 # define HAVE_PID_T
379 #endif /* HAVE_PID_T */
380 
381 #ifndef HAVE_SIG_ATOMIC_T
382 typedef int sig_atomic_t;
383 # define HAVE_SIG_ATOMIC_T
384 #endif /* HAVE_SIG_ATOMIC_T */
385 
386 #ifndef HAVE_MODE_T
387 typedef int mode_t;
388 # define HAVE_MODE_T
389 #endif /* HAVE_MODE_T */
390 
391 #if !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE___SS_FAMILY_IN_SS)
392 # define ss_family __ss_family
393 #endif /* !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE_SA_FAMILY_IN_SS) */
394 
395 #ifndef HAVE_SYS_UN_H
396 struct sockaddr_un {
397  short sun_family; /* AF_UNIX */
398  char sun_path[108]; /* path name (gag) */
399 };
400 #endif /* HAVE_SYS_UN_H */
401 
402 #ifndef HAVE_IN_ADDR_T
403 typedef u_int32_t in_addr_t;
404 #endif
405 #ifndef HAVE_IN_PORT_T
406 typedef u_int16_t in_port_t;
407 #endif
408 
409 #if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE)
410 #define _STRUCT_WINSIZE
411 struct winsize {
412  unsigned short ws_row; /* rows, in characters */
413  unsigned short ws_col; /* columns, in character */
414  unsigned short ws_xpixel; /* horizontal size, pixels */
415  unsigned short ws_ypixel; /* vertical size, pixels */
416 };
417 #endif
418 
419 /* bits needed for select that may not be in the system headers */
420 #ifndef HAVE_FD_MASK
421  typedef unsigned long int fd_mask;
422 #endif
423 
424 #if defined(HAVE_DECL_NFDBITS) && HAVE_DECL_NFDBITS == 0
425 # define NFDBITS (8 * sizeof(unsigned long))
426 #endif
427 
428 #if defined(HAVE_DECL_HOWMANY) && HAVE_DECL_HOWMANY == 0
429 # define howmany(x,y) (((x)+((y)-1))/(y))
430 #endif
431 
432 /* Paths */
433 
434 #ifndef _PATH_BSHELL
435 # define _PATH_BSHELL "/bin/sh"
436 #endif
437 
438 #ifdef USER_PATH
439 # ifdef _PATH_STDPATH
440 # undef _PATH_STDPATH
441 # endif
442 # define _PATH_STDPATH USER_PATH
443 #endif
444 
445 #ifndef _PATH_STDPATH
446 # define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
447 #endif
448 
449 #ifndef SUPERUSER_PATH
450 # define SUPERUSER_PATH _PATH_STDPATH
451 #endif
452 
453 #ifndef _PATH_DEVNULL
454 # define _PATH_DEVNULL "/dev/null"
455 #endif
456 
457 /* user may have set a different path */
458 #if defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY)
459 # undef _PATH_MAILDIR
460 #endif /* defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY) */
461 
462 #ifdef MAIL_DIRECTORY
463 # define _PATH_MAILDIR MAIL_DIRECTORY
464 #endif
465 
466 #ifndef _PATH_NOLOGIN
467 # define _PATH_NOLOGIN "/etc/nologin"
468 #endif
469 
470 /* Define this to be the path of the xauth program. */
471 #ifdef XAUTH_PATH
472 #define _PATH_XAUTH XAUTH_PATH
473 #endif /* XAUTH_PATH */
474 
475 /* derived from XF4/xc/lib/dps/Xlibnet.h */
476 #ifndef X_UNIX_PATH
477 # ifdef __hpux
478 # define X_UNIX_PATH "/var/spool/sockets/X11/%u"
479 # else
480 # define X_UNIX_PATH "/tmp/.X11-unix/X%u"
481 # endif
482 #endif /* X_UNIX_PATH */
483 #define _PATH_UNIX_X X_UNIX_PATH
484 
485 #ifndef _PATH_TTY
486 # define _PATH_TTY "/dev/tty"
487 #endif
488 
489 /* Macros */
490 
491 #if defined(HAVE_LOGIN_GETCAPBOOL) && defined(HAVE_LOGIN_CAP_H)
492 # define HAVE_LOGIN_CAP
493 #endif
494 
495 #ifndef MAX
496 # define MAX(a,b) (((a)>(b))?(a):(b))
497 # define MIN(a,b) (((a)<(b))?(a):(b))
498 #endif
499 
500 #ifndef roundup
501 # define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
502 #endif
503 
504 #ifndef timersub
505 #define timersub(a, b, result) \
506  do { \
507  (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
508  (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
509  if ((result)->tv_usec < 0) { \
510  --(result)->tv_sec; \
511  (result)->tv_usec += 1000000; \
512  } \
513  } while (0)
514 #endif
515 
516 #ifndef TIMEVAL_TO_TIMESPEC
517 #define TIMEVAL_TO_TIMESPEC(tv, ts) { \
518  (ts)->tv_sec = (tv)->tv_sec; \
519  (ts)->tv_nsec = (tv)->tv_usec * 1000; \
520 }
521 #endif
522 
523 #ifndef TIMESPEC_TO_TIMEVAL
524 #define TIMESPEC_TO_TIMEVAL(tv, ts) { \
525  (tv)->tv_sec = (ts)->tv_sec; \
526  (tv)->tv_usec = (ts)->tv_nsec / 1000; \
527 }
528 #endif
529 
530 #ifndef timespeccmp
531 #define timespeccmp(tsp, usp, cmp) \
532  (((tsp)->tv_sec == (usp)->tv_sec) ? \
533  ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
534  ((tsp)->tv_sec cmp (usp)->tv_sec))
535 #endif
536 
537 /* Operations on timespecs. */
538 #ifndef timespecclear
539 #define timespecclear(tsp) (tsp)->tv_sec = (tsp)->tv_nsec = 0
540 #endif
541 #ifndef timespeccmp
542 #define timespeccmp(tsp, usp, cmp) \
543  (((tsp)->tv_sec == (usp)->tv_sec) ? \
544  ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
545  ((tsp)->tv_sec cmp (usp)->tv_sec))
546 #endif
547 #ifndef timespecadd
548 #define timespecadd(tsp, usp, vsp) \
549  do { \
550  (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \
551  (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \
552  if ((vsp)->tv_nsec >= 1000000000L) { \
553  (vsp)->tv_sec++; \
554  (vsp)->tv_nsec -= 1000000000L; \
555  } \
556  } while (0)
557 #endif
558 #ifndef timespecsub
559 #define timespecsub(tsp, usp, vsp) \
560  do { \
561  (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
562  (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \
563  if ((vsp)->tv_nsec < 0) { \
564  (vsp)->tv_sec--; \
565  (vsp)->tv_nsec += 1000000000L; \
566  } \
567  } while (0)
568 #endif
569 
570 #ifndef __P
571 # define __P(x) x
572 #endif
573 
574 #if !defined(IN6_IS_ADDR_V4MAPPED)
575 # define IN6_IS_ADDR_V4MAPPED(a) \
576  ((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \
577  (((u_int32_t *) (a))[2] == htonl (0xffff)))
578 #endif /* !defined(IN6_IS_ADDR_V4MAPPED) */
579 
580 #if !defined(__GNUC__) || (__GNUC__ < 2)
581 # define __attribute__(x)
582 #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
583 
584 #if !defined(HAVE_ATTRIBUTE__SENTINEL__) && !defined(__sentinel__)
585 # define __sentinel__
586 #endif
587 
588 #if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__bounded__)
589 # define __bounded__(x, y, z)
590 #endif
591 
592 #if !defined(HAVE_ATTRIBUTE__NONNULL__) && !defined(__nonnull__)
593 # define __nonnull__(x)
594 #endif
595 
596 #ifndef OSSH_ALIGNBYTES
597 #define OSSH_ALIGNBYTES (sizeof(int) - 1)
598 #endif
599 #ifndef __CMSG_ALIGN
600 #define __CMSG_ALIGN(p) (((u_int)(p) + OSSH_ALIGNBYTES) &~ OSSH_ALIGNBYTES)
601 #endif
602 
603 /* Length of the contents of a control message of length len */
604 #ifndef CMSG_LEN
605 #define CMSG_LEN(len) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
606 #endif
607 
608 /* Length of the space taken up by a padded control message of length len */
609 #ifndef CMSG_SPACE
610 #define CMSG_SPACE(len) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(len))
611 #endif
612 
613 /* given pointer to struct cmsghdr, return pointer to data */
614 #ifndef CMSG_DATA
615 #define CMSG_DATA(cmsg) ((u_char *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
616 #endif /* CMSG_DATA */
617 
618 /*
619  * RFC 2292 requires to check msg_controllen, in case that the kernel returns
620  * an empty list for some reasons.
621  */
622 #ifndef CMSG_FIRSTHDR
623 #define CMSG_FIRSTHDR(mhdr) \
624  ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
625  (struct cmsghdr *)(mhdr)->msg_control : \
626  (struct cmsghdr *)NULL)
627 #endif /* CMSG_FIRSTHDR */
628 
629 #if defined(HAVE_DECL_OFFSETOF) && HAVE_DECL_OFFSETOF == 0
630 # define offsetof(type, member) ((size_t) &((type *)0)->member)
631 #endif
632 
633 /* Set up BSD-style BYTE_ORDER definition if it isn't there already */
634 /* XXX: doesn't try to cope with strange byte orders (PDP_ENDIAN) */
635 #ifndef BYTE_ORDER
636 # ifndef LITTLE_ENDIAN
637 # define LITTLE_ENDIAN 1234
638 # endif /* LITTLE_ENDIAN */
639 # ifndef BIG_ENDIAN
640 # define BIG_ENDIAN 4321
641 # endif /* BIG_ENDIAN */
642 # ifdef WORDS_BIGENDIAN
643 # define BYTE_ORDER BIG_ENDIAN
644 # else /* WORDS_BIGENDIAN */
645 # define BYTE_ORDER LITTLE_ENDIAN
646 # endif /* WORDS_BIGENDIAN */
647 #endif /* BYTE_ORDER */
648 
649 /* Function replacement / compatibility hacks */
650 
651 #if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO))
652 # define HAVE_GETADDRINFO
653 #endif
654 
655 #ifndef HAVE_GETOPT_OPTRESET
656 # undef getopt
657 # undef opterr
658 # undef optind
659 # undef optopt
660 # undef optreset
661 # undef optarg
662 # define getopt(ac, av, o) BSDgetopt(ac, av, o)
663 # define opterr BSDopterr
664 # define optind BSDoptind
665 # define optopt BSDoptopt
666 # define optreset BSDoptreset
667 # define optarg BSDoptarg
668 #endif
669 
670 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO)
671 # undef HAVE_GETADDRINFO
672 #endif
673 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_FREEADDRINFO)
674 # undef HAVE_FREEADDRINFO
675 #endif
676 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GAI_STRERROR)
677 # undef HAVE_GAI_STRERROR
678 #endif
679 
680 #if defined(HAVE_GETADDRINFO)
681 # if defined(HAVE_DECL_AI_NUMERICSERV) && HAVE_DECL_AI_NUMERICSERV == 0
682 # define AI_NUMERICSERV 0
683 # endif
684 #endif
685 
686 #if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX)
687 # undef HAVE_UPDWTMPX
688 #endif
689 
690 #if defined(BROKEN_SHADOW_EXPIRE) && defined(HAS_SHADOW_EXPIRE)
691 # undef HAS_SHADOW_EXPIRE
692 #endif
693 
694 #if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT) && \
695  defined(SYSLOG_R_SAFE_IN_SIGHAND)
696 # define DO_LOG_SAFE_IN_SIGHAND
697 #endif
698 
699 #if !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY)
700 # define memmove(s1, s2, n) bcopy((s2), (s1), (n))
701 #endif /* !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY) */
702 
703 #ifndef GETPGRP_VOID
704 # include <unistd.h>
705 # define getpgrp() getpgrp(0)
706 #endif
707 
708 #ifdef USE_BSM_AUDIT
709 # define SSH_AUDIT_EVENTS
710 # define CUSTOM_SSH_AUDIT_EVENTS
711 #endif
712 
713 #ifdef USE_LINUX_AUDIT
714 # define SSH_AUDIT_EVENTS
715 # define CUSTOM_SSH_AUDIT_EVENTS
716 #endif
717 
718 #if !defined(HAVE___func__) && defined(HAVE___FUNCTION__)
719 # define __func__ __FUNCTION__
720 #elif !defined(HAVE___func__)
721 # define __func__ ""
722 #endif
723 
724 #if defined(KRB5) && !defined(HEIMDAL)
725 # define krb5_get_err_text(context,code) error_message(code)
726 #endif
727 
728 /* Maximum number of file descriptors available */
729 #ifdef HAVE_SYSCONF
730 # define SSH_SYSFDMAX sysconf(_SC_OPEN_MAX)
731 #else
732 # define SSH_SYSFDMAX 10000
733 #endif
734 
735 #ifdef FSID_HAS_VAL
736 /* encode f_fsid into a 64 bit value */
737 #define FSID_TO_ULONG(f) \
738  ((((u_int64_t)(f).val[0] & 0xffffffffUL) << 32) | \
739  ((f).val[1] & 0xffffffffUL))
740 #elif defined(FSID_HAS___VAL)
741 #define FSID_TO_ULONG(f) \
742  ((((u_int64_t)(f).__val[0] & 0xffffffffUL) << 32) | \
743  ((f).__val[1] & 0xffffffffUL))
744 #else
745 # define FSID_TO_ULONG(f) ((f))
746 #endif
747 
748 #if defined(__Lynx__)
749  /*
750  * LynxOS defines these in param.h which we do not want to include since
751  * it will also pull in a bunch of kernel definitions.
752  */
753 # define ALIGNBYTES (sizeof(int) - 1)
754 # define ALIGN(p) (((unsigned)p + ALIGNBYTES) & ~ALIGNBYTES)
755  /* Missing prototypes on LynxOS */
756  int snprintf (char *, size_t, const char *, ...);
757  int mkstemp (char *);
758  char *crypt (const char *, const char *);
759  int seteuid (uid_t);
760  int setegid (gid_t);
761  char *mkdtemp (char *);
762  int rresvport_af (int *, sa_family_t);
763  int innetgr (const char *, const char *, const char *, const char *);
764 #endif
765 
766 /*
767  * Define this to use pipes instead of socketpairs for communicating with the
768  * client program. Socketpairs do not seem to work on all systems.
769  *
770  * configure.ac sets this for a few OS's which are known to have problems
771  * but you may need to set it yourself
772  */
773 /* #define USE_PIPES 1 */
774 
779 /* FIXME: put default paths back in */
780 #ifndef UTMP_FILE
781 # ifdef _PATH_UTMP
782 # define UTMP_FILE _PATH_UTMP
783 # else
784 # ifdef CONF_UTMP_FILE
785 # define UTMP_FILE CONF_UTMP_FILE
786 # endif
787 # endif
788 #endif
789 #ifndef WTMP_FILE
790 # ifdef _PATH_WTMP
791 # define WTMP_FILE _PATH_WTMP
792 # else
793 # ifdef CONF_WTMP_FILE
794 # define WTMP_FILE CONF_WTMP_FILE
795 # endif
796 # endif
797 #endif
798 /* pick up the user's location for lastlog if given */
799 #ifndef LASTLOG_FILE
800 # ifdef _PATH_LASTLOG
801 # define LASTLOG_FILE _PATH_LASTLOG
802 # else
803 # ifdef CONF_LASTLOG_FILE
804 # define LASTLOG_FILE CONF_LASTLOG_FILE
805 # endif
806 # endif
807 #endif
808 
809 #if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
810 # define USE_SHADOW
811 #endif
812 
813 /* The login() library function in libutil is first choice */
814 #if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN)
815 # define USE_LOGIN
816 
817 #else
818 /* Simply select your favourite login types. */
819 /* Can't do if-else because some systems use several... <sigh> */
820 # if !defined(DISABLE_UTMPX)
821 # define USE_UTMPX
822 # endif
823 # if defined(UTMP_FILE) && !defined(DISABLE_UTMP)
824 # define USE_UTMP
825 # endif
826 # if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX)
827 # define USE_WTMPX
828 # endif
829 # if defined(WTMP_FILE) && !defined(DISABLE_WTMP)
830 # define USE_WTMP
831 # endif
832 
833 #endif
834 
835 #ifndef UT_LINESIZE
836 # define UT_LINESIZE 8
837 #endif
838 
839 /* I hope that the presence of LASTLOG_FILE is enough to detect this */
840 #if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG)
841 # define USE_LASTLOG
842 #endif
843 
844 #ifdef HAVE_OSF_SIA
845 # ifdef USE_SHADOW
846 # undef USE_SHADOW
847 # endif
848 # define CUSTOM_SYS_AUTH_PASSWD 1
849 #endif
850 
851 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(HAVE_SECUREWARE)
852 # define CUSTOM_SYS_AUTH_PASSWD 1
853 #endif
854 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(BROKEN_LIBIAF)
855 # define USE_LIBIAF
856 #endif
857 
858 /* HP-UX 11.11 */
859 #ifdef BTMP_FILE
860 # define _PATH_BTMP BTMP_FILE
861 #endif
862 
863 #if defined(USE_BTMP) && defined(_PATH_BTMP)
864 # define CUSTOM_FAILED_LOGIN
865 #endif
866 
869 #ifdef BROKEN_GETGROUPS
870 # define getgroups(a,b) ((a)==0 && (b)==NULL ? NGROUPS_MAX : getgroups((a),(b)))
871 #endif
872 
873 #ifndef IOV_MAX
874 # if defined(_XOPEN_IOV_MAX)
875 # define IOV_MAX _XOPEN_IOV_MAX
876 # elif defined(DEF_IOV_MAX)
877 # define IOV_MAX DEF_IOV_MAX
878 # else
879 # define IOV_MAX 16
880 # endif
881 #endif
882 
883 #ifndef EWOULDBLOCK
884 # define EWOULDBLOCK EAGAIN
885 #endif
886 
887 #ifndef INET6_ADDRSTRLEN /* for non IPv6 machines */
888 #define INET6_ADDRSTRLEN 46
889 #endif
890 
891 #ifndef SSH_IOBUFSZ
892 # define SSH_IOBUFSZ 32*1024
893 #endif
894 
895 /*
896  * We want functions in openbsd-compat, if enabled, to override system ones.
897  * We no-op out the weak symbol definition rather than remove it to reduce
898  * future sync problems. Some compilers (eg Unixware) do not allow an
899  * empty statement, so we use a bogus function declaration.
900  */
901 #define DEF_WEAK(x) void __ssh_compat_weak_##x(void)
902 
903 /*
904  * Platforms that have arc4random_uniform() and not arc4random_stir()
905  * shouldn't need the latter.
906  */
907 #if defined(HAVE_ARC4RANDOM) && defined(HAVE_ARC4RANDOM_UNIFORM) && \
908  !defined(HAVE_ARC4RANDOM_STIR)
909 # define arc4random_stir()
910 #endif
911 
912 #ifndef HAVE_VA_COPY
913 # ifdef HAVE___VA_COPY
914 # define va_copy(dest, src) __va_copy(dest, src)
915 # else
916 # define va_copy(dest, src) (dest) = (src)
917 # endif
918 #endif
919 
920 #ifndef __predict_true
921 # if defined(__GNUC__) && \
922  ((__GNUC__ > (2)) || (__GNUC__ == (2) && __GNUC_MINOR__ >= (96)))
923 # define __predict_true(exp) __builtin_expect(((exp) != 0), 1)
924 # define __predict_false(exp) __builtin_expect(((exp) != 0), 0)
925 # else
926 # define __predict_true(exp) ((exp) != 0)
927 # define __predict_false(exp) ((exp) != 0)
928 # endif /* gcc version */
929 #endif /* __predict_true */
930 
931 #if defined(HAVE_GLOB_H) && defined(GLOB_HAS_ALTDIRFUNC) && \
932  defined(GLOB_HAS_GL_MATCHC) && defined(GLOB_HAS_GL_STATV) && \
933  defined(HAVE_DECL_GLOB_NOMATCH) && HAVE_DECL_GLOB_NOMATCH != 0 && \
934  !defined(BROKEN_GLOB)
935 # define USE_SYSTEM_GLOB
936 #endif
937 
938 /*
939  * sntrup761 uses variable length arrays and c99-style declarations after code,
940  * so only enable if the compiler supports them.
941  */
942 #if defined(VARIABLE_LENGTH_ARRAYS) && defined(VARIABLE_DECLARATION_AFTER_CODE)
943 # define USE_SNTRUP761X25519 1
944 #endif
945 #endif /* _DEFINES_H */