2 * Copyright (c) 1999-2003 Damien Miller. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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.
28 /* $Id: defines.h,v 1.183 2014/09/02 19:33:26 djm Exp $ */
33 #if defined(HAVE_DECL_SHUT_RD) && HAVE_DECL_SHUT_RD == 0
36 SHUT_RD = 0, /* No more receptions. */
37 SHUT_WR, /* No more transmissions. */
38 SHUT_RDWR /* No more receptions or transmissions. */
40 # define SHUT_RD SHUT_RD
41 # define SHUT_WR SHUT_WR
42 # define SHUT_RDWR SHUT_RDWR
46 * Definitions for IP type of service (ip_tos)
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 */
59 * Definitions for DiffServ Codepoints as per RFC2474
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 */
87 # define IPTOS_DSCP_EF 0xb8
88 #endif /* IPTOS_DSCP_EF */
91 # ifdef _POSIX_PATH_MAX
92 # define PATH_MAX _POSIX_PATH_MAX
98 # define MAXPATHLEN 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 */
108 #if defined(HAVE_DECL_MAXSYMLINKS) && HAVE_DECL_MAXSYMLINKS == 0
109 # define MAXSYMLINKS 5
113 # define STDIN_FILENO 0
115 #ifndef STDOUT_FILENO
116 # define STDOUT_FILENO 1
118 #ifndef STDERR_FILENO
119 # define STDERR_FILENO 2
122 #ifndef NGROUPS_MAX /* Disable groupaccess if NGROUP_MAX is not set */
124 #define NGROUPS_MAX NGROUPS
126 #define NGROUPS_MAX 0
130 #if defined(HAVE_DECL_O_NONBLOCK) && HAVE_DECL_O_NONBLOCK == 0
131 # define O_NONBLOCK 00004 /* Non Blocking Open */
136 #endif /* S_IFSOCK */
139 # define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
143 # define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
147 # define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
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 */
166 #if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
167 #define MAP_ANON MAP_ANONYMOUS
171 # define MAP_FAILED ((void *)-1)
175 SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but
176 including rpc/rpc.h breaks Solaris 6
178 #ifndef INADDR_LOOPBACK
179 #define INADDR_LOOPBACK ((u_long)0x7f000001)
184 /* If sys/types.h does not supply intXX_t, supply them ourselves */
185 /* (or die trying) */
188 typedef unsigned int u_int;
192 typedef signed char int8_t;
193 # if (SIZEOF_SHORT_INT == 2)
194 typedef short int int16_t;
197 # if (SIZEOF_SHORT_INT == 4)
198 typedef short int16_t;
200 typedef long int16_t;
203 # error "16 bit int type not found."
204 # endif /* _UNICOS */
206 # if (SIZEOF_INT == 4)
210 typedef long int32_t;
212 # error "32 bit int type not found."
213 # endif /* _UNICOS */
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
225 typedef unsigned char u_int8_t;
226 # if (SIZEOF_SHORT_INT == 2)
227 typedef unsigned short int u_int16_t;
230 # if (SIZEOF_SHORT_INT == 4)
231 typedef unsigned short u_int16_t;
233 typedef unsigned long u_int16_t;
236 # error "16 bit int type not found."
239 # if (SIZEOF_INT == 4)
240 typedef unsigned int u_int32_t;
243 typedef unsigned long u_int32_t;
245 # error "32 bit int type not found."
249 #define __BIT_TYPES_DEFINED__
254 # if (SIZEOF_LONG_INT == 8)
255 typedef long int int64_t;
257 # if (SIZEOF_LONG_LONG_INT == 8)
258 typedef long long int int64_t;
262 #ifndef HAVE_U_INT64_T
263 # if (SIZEOF_LONG_INT == 8)
264 typedef unsigned long int u_int64_t;
266 # if (SIZEOF_LONG_LONG_INT == 8)
267 typedef unsigned long long int u_int64_t;
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;
279 #ifndef HAVE_INTMAX_T
280 typedef long long intmax_t;
283 #ifndef HAVE_UINTMAX_T
284 typedef unsigned long long uintmax_t;
288 typedef unsigned char u_char;
290 #endif /* HAVE_U_CHAR */
293 # define ULLONG_MAX ((unsigned long long)-1)
297 #define SIZE_T_MAX ULONG_MAX
298 #endif /* SIZE_T_MAX */
301 typedef unsigned int size_t;
303 # define SIZE_T_MAX UINT_MAX
304 #endif /* HAVE_SIZE_T */
307 #define SIZE_MAX SIZE_T_MAX
312 # define HAVE_SSIZE_T
313 #endif /* HAVE_SSIZE_T */
316 typedef long clock_t;
317 # define HAVE_CLOCK_T
318 #endif /* HAVE_CLOCK_T */
320 #ifndef HAVE_SA_FAMILY_T
321 typedef int sa_family_t;
322 # define HAVE_SA_FAMILY_T
323 #endif /* HAVE_SA_FAMILY_T */
328 #endif /* HAVE_PID_T */
330 #ifndef HAVE_SIG_ATOMIC_T
331 typedef int sig_atomic_t;
332 # define HAVE_SIG_ATOMIC_T
333 #endif /* HAVE_SIG_ATOMIC_T */
338 #endif /* HAVE_MODE_T */
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) */
344 #ifndef HAVE_SYS_UN_H
346 short sun_family; /* AF_UNIX */
347 char sun_path[108]; /* path name (gag) */
349 #endif /* HAVE_SYS_UN_H */
351 #ifndef HAVE_IN_ADDR_T
352 typedef u_int32_t in_addr_t;
354 #ifndef HAVE_IN_PORT_T
355 typedef u_int16_t in_port_t;
358 #if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE)
359 #define _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 */
368 /* bits needed for select that may not be in the system headers */
370 typedef unsigned long int fd_mask;
373 #if defined(HAVE_DECL_NFDBITS) && HAVE_DECL_NFDBITS == 0
374 # define NFDBITS (8 * sizeof(unsigned long))
377 #if defined(HAVE_DECL_HOWMANY) && HAVE_DECL_HOWMANY == 0
378 # define howmany(x,y) (((x)+((y)-1))/(y))
384 # define _PATH_BSHELL "/bin/sh"
388 # ifdef _PATH_STDPATH
389 # undef _PATH_STDPATH
391 # define _PATH_STDPATH USER_PATH
394 #ifndef _PATH_STDPATH
395 # define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
398 #ifndef SUPERUSER_PATH
399 # define SUPERUSER_PATH _PATH_STDPATH
402 #ifndef _PATH_DEVNULL
403 # define _PATH_DEVNULL "/dev/null"
406 /* user may have set a different path */
407 #if defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY)
408 # undef _PATH_MAILDIR
409 #endif /* defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY) */
411 #ifdef MAIL_DIRECTORY
412 # define _PATH_MAILDIR MAIL_DIRECTORY
415 #ifndef _PATH_NOLOGIN
416 # define _PATH_NOLOGIN "/etc/nologin"
419 /* Define this to be the path of the xauth program. */
421 #define _PATH_XAUTH XAUTH_PATH
422 #endif /* XAUTH_PATH */
424 /* derived from XF4/xc/lib/dps/Xlibnet.h */
427 # define X_UNIX_PATH "/var/spool/sockets/X11/%u"
429 # define X_UNIX_PATH "/tmp/.X11-unix/X%u"
431 #endif /* X_UNIX_PATH */
432 #define _PATH_UNIX_X X_UNIX_PATH
435 # define _PATH_TTY "/dev/tty"
440 #if defined(HAVE_LOGIN_GETCAPBOOL) && defined(HAVE_LOGIN_CAP_H)
441 # define HAVE_LOGIN_CAP
445 # define MAX(a,b) (((a)>(b))?(a):(b))
446 # define MIN(a,b) (((a)<(b))?(a):(b))
450 # define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
454 #define timersub(a, b, result) \
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; \
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; \
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; \
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) */
489 #if !defined(__GNUC__) || (__GNUC__ < 2)
490 # define __attribute__(x)
491 #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
493 #if !defined(HAVE_ATTRIBUTE__SENTINEL__) && !defined(__sentinel__)
494 # define __sentinel__
497 #if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__bounded__)
498 # define __bounded__(x, y, z)
501 #if !defined(HAVE_ATTRIBUTE__NONNULL__) && !defined(__nonnull__)
502 # define __nonnull__(x)
505 #ifndef OSSH_ALIGNBYTES
506 #define OSSH_ALIGNBYTES (sizeof(int) - 1)
509 #define __CMSG_ALIGN(p) (((u_int)(p) + OSSH_ALIGNBYTES) &~ OSSH_ALIGNBYTES)
512 /* Length of the contents of a control message of length len */
514 #define CMSG_LEN(len) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
517 /* Length of the space taken up by a padded control message of length len */
519 #define CMSG_SPACE(len) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(len))
522 /* given pointer to struct cmsghdr, return pointer to data */
524 #define CMSG_DATA(cmsg) ((u_char *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
525 #endif /* CMSG_DATA */
528 * RFC 2292 requires to check msg_controllen, in case that the kernel returns
529 * an empty list for some reasons.
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 */
538 #if defined(HAVE_DECL_OFFSETOF) && HAVE_DECL_OFFSETOF == 0
539 # define offsetof(type, member) ((size_t) &((type *)0)->member)
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) */
545 # ifndef LITTLE_ENDIAN
546 # define LITTLE_ENDIAN 1234
547 # endif /* LITTLE_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 */
558 /* Function replacement / compatibility hacks */
560 #if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO))
561 # define HAVE_GETADDRINFO
564 #ifndef HAVE_GETOPT_OPTRESET
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
579 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO)
580 # undef HAVE_GETADDRINFO
582 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_FREEADDRINFO)
583 # undef HAVE_FREEADDRINFO
585 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GAI_STRERROR)
586 # undef HAVE_GAI_STRERROR
589 #if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX)
590 # undef HAVE_UPDWTMPX
593 #if defined(BROKEN_SHADOW_EXPIRE) && defined(HAS_SHADOW_EXPIRE)
594 # undef HAS_SHADOW_EXPIRE
597 #if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT) && \
598 defined(SYSLOG_R_SAFE_IN_SIGHAND)
599 # define DO_LOG_SAFE_IN_SIGHAND
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) */
608 # define getpgrp() getpgrp(0)
612 # define SSH_AUDIT_EVENTS
613 # define CUSTOM_SSH_AUDIT_EVENTS
616 #ifdef USE_LINUX_AUDIT
617 # define SSH_AUDIT_EVENTS
618 # define CUSTOM_SSH_AUDIT_EVENTS
621 #if !defined(HAVE___func__) && defined(HAVE___FUNCTION__)
622 # define __func__ __FUNCTION__
623 #elif !defined(HAVE___func__)
627 #if defined(KRB5) && !defined(HEIMDAL)
628 # define krb5_get_err_text(context,code) error_message(code)
631 #if defined(SKEYCHALLENGE_4ARG)
632 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c,d)
634 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c)
637 /* Maximum number of file descriptors available */
639 # define SSH_SYSFDMAX sysconf(_SC_OPEN_MAX)
641 # define SSH_SYSFDMAX 10000
645 /* encode f_fsid into a 64 bit value */
646 #define FSID_TO_ULONG(f) \
647 ((((u_int64_t)(f).val[0] & 0xffffffffUL) << 32) | \
648 ((f).val[1] & 0xffffffffUL))
649 #elif defined(FSID_HAS___VAL)
650 #define FSID_TO_ULONG(f) \
651 ((((u_int64_t)(f).__val[0] & 0xffffffffUL) << 32) | \
652 ((f).__val[1] & 0xffffffffUL))
654 # define FSID_TO_ULONG(f) ((f))
657 #if defined(__Lynx__)
659 * LynxOS defines these in param.h which we do not want to include since
660 * it will also pull in a bunch of kernel definitions.
662 # define ALIGNBYTES (sizeof(int) - 1)
663 # define ALIGN(p) (((unsigned)p + ALIGNBYTES) & ~ALIGNBYTES)
664 /* Missing prototypes on LynxOS */
665 int snprintf (char *, size_t, const char *, ...);
666 int mkstemp (char *);
667 char *crypt (const char *, const char *);
670 char *mkdtemp (char *);
671 int rresvport_af (int *, sa_family_t);
672 int innetgr (const char *, const char *, const char *, const char *);
676 * Define this to use pipes instead of socketpairs for communicating with the
677 * client program. Socketpairs do not seem to work on all systems.
679 * configure.ac sets this for a few OS's which are known to have problems
680 * but you may need to set it yourself
682 /* #define USE_PIPES 1 */
685 ** login recorder definitions
688 /* FIXME: put default paths back in */
691 # define UTMP_FILE _PATH_UTMP
693 # ifdef CONF_UTMP_FILE
694 # define UTMP_FILE CONF_UTMP_FILE
700 # define WTMP_FILE _PATH_WTMP
702 # ifdef CONF_WTMP_FILE
703 # define WTMP_FILE CONF_WTMP_FILE
707 /* pick up the user's location for lastlog if given */
709 # ifdef _PATH_LASTLOG
710 # define LASTLOG_FILE _PATH_LASTLOG
712 # ifdef CONF_LASTLOG_FILE
713 # define LASTLOG_FILE CONF_LASTLOG_FILE
718 #if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
722 /* The login() library function in libutil is first choice */
723 #if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN)
727 /* Simply select your favourite login types. */
728 /* Can't do if-else because some systems use several... <sigh> */
729 # if !defined(DISABLE_UTMPX)
732 # if defined(UTMP_FILE) && !defined(DISABLE_UTMP)
735 # if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX)
738 # if defined(WTMP_FILE) && !defined(DISABLE_WTMP)
745 # define UT_LINESIZE 8
748 /* I hope that the presence of LASTLOG_FILE is enough to detect this */
749 #if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG)
757 # define CUSTOM_SYS_AUTH_PASSWD 1
760 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(HAVE_SECUREWARE)
761 # define CUSTOM_SYS_AUTH_PASSWD 1
763 #if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(BROKEN_LIBIAF)
769 # define _PATH_BTMP BTMP_FILE
772 #if defined(USE_BTMP) && defined(_PATH_BTMP)
773 # define CUSTOM_FAILED_LOGIN
776 /** end of login recorder definitions */
778 #ifdef BROKEN_GETGROUPS
779 # define getgroups(a,b) ((a)==0 && (b)==NULL ? NGROUPS_MAX : getgroups((a),(b)))
782 #if defined(HAVE_MMAP) && defined(BROKEN_MMAP)
787 # if defined(_XOPEN_IOV_MAX)
788 # define IOV_MAX _XOPEN_IOV_MAX
789 # elif defined(DEF_IOV_MAX)
790 # define IOV_MAX DEF_IOV_MAX
797 # define EWOULDBLOCK EAGAIN
800 #ifndef INET6_ADDRSTRLEN /* for non IPv6 machines */
801 #define INET6_ADDRSTRLEN 46
805 # define SSH_IOBUFSZ 8192
817 * Platforms that have arc4random_uniform() and not arc4random_stir()
818 * shouldn't need the latter.
820 #if defined(HAVE_ARC4RANDOM) && defined(HAVE_ARC4RANDOM_UNIFORM) && \
821 !defined(HAVE_ARC4RANDOM_STIR)
822 # define arc4random_stir()
826 # ifdef HAVE___VA_COPY
827 # define va_copy(dest, src) __va_copy(dest, src)
829 # define va_copy(dest, src) (dest) = (src)
833 #ifndef __predict_true
834 # if defined(__GNUC__) && \
835 ((__GNUC__ > (2)) || (__GNUC__ == (2) && __GNUC_MINOR__ >= (96)))
836 # define __predict_true(exp) __builtin_expect(((exp) != 0), 1)
837 # define __predict_false(exp) __builtin_expect(((exp) != 0), 0)
839 # define __predict_true(exp) ((exp) != 0)
840 # define __predict_false(exp) ((exp) != 0)
841 # endif /* gcc version */
842 #endif /* __predict_true */
844 #endif /* _DEFINES_H */