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 /* $Id: defines.h,v 1.122 2005/07/14 07:22:11 dtucker Exp $ */
  29
  30
  31 /* Constants */
  32
  33 #ifndef SHUT_RDWR
  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 STDIN_FILENO
  66 # define STDIN_FILENO    0
  67 #endif
  68 #ifndef STDOUT_FILENO
  69 # define STDOUT_FILENO   1
  70 #endif
  71 #ifndef STDERR_FILENO
  72 # define STDERR_FILENO   2
  73 #endif
  74
  75 #ifndef NGROUPS_MAX     /* Disable groupaccess if NGROUP_MAX is not set */
  76 #ifdef NGROUPS
  77 #define NGROUPS_MAX NGROUPS
  78 #else
  79 #define NGROUPS_MAX 0
  80 #endif
  81 #endif
  82
  83 #ifndef O_NONBLOCK      /* Non Blocking Open */
  84 # define O_NONBLOCK      00004
  85 #endif
  86
  87 #ifndef S_ISDIR
  88 # define S_ISDIR(mode)  (((mode) & (_S_IFMT)) == (_S_IFDIR))
  89 #endif /* S_ISDIR */
  90
  91 #ifndef S_ISREG
  92 # define S_ISREG(mode)  (((mode) & (_S_IFMT)) == (_S_IFREG))
  93 #endif /* S_ISREG */
  94
  95 #ifndef S_ISLNK
  96 # define S_ISLNK(mode)  (((mode) & S_IFMT) == S_IFLNK)
  97 #endif /* S_ISLNK */
  98
  99 #ifndef S_IXUSR
 100 # define S_IXUSR                        0000100 /* execute/search permission, */
 101 # define S_IXGRP                        0000010 /* execute/search permission, */
 102 # define S_IXOTH                        0000001 /* execute/search permission, */
 103 # define _S_IWUSR                       0000200 /* write permission, */
 104 # define S_IWUSR                        _S_IWUSR        /* write permission, owner */
 105 # define S_IWGRP                        0000020 /* write permission, group */
 106 # define S_IWOTH                        0000002 /* write permission, other */
 107 # define S_IRUSR                        0000400 /* read permission, owner */
 108 # define S_IRGRP                        0000040 /* read permission, group */
 109 # define S_IROTH                        0000004 /* read permission, other */
 110 # define S_IRWXU                        0000700 /* read, write, execute */
 111 # define S_IRWXG                        0000070 /* read, write, execute */
 112 # define S_IRWXO                        0000007 /* read, write, execute */
 113 #endif /* S_IXUSR */
 114
 115 #if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
 116 #define MAP_ANON MAP_ANONYMOUS
 117 #endif
 118
 119 #ifndef MAP_FAILED
 120 # define MAP_FAILED ((void *)-1)
 121 #endif
 122
 123 /* *-*-nto-qnx doesn't define this constant in the system headers */
 124 #ifdef MISSING_NFDBITS
 125 # define        NFDBITS (8 * sizeof(unsigned long))
 126 #endif
 127
 128 /*
 129 SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but
 130 including rpc/rpc.h breaks Solaris 6
 131 */
 132 #ifndef INADDR_LOOPBACK
 133 #define INADDR_LOOPBACK ((u_long)0x7f000001)
 134 #endif
 135
 136 #ifndef __unused
 137 #define __unused
 138 #endif
 139
 140 /* Types */
 141
 142 /* If sys/types.h does not supply intXX_t, supply them ourselves */
 143 /* (or die trying) */
 144
 145
 146 #ifndef HAVE_U_INT
 147 typedef unsigned int u_int;
 148 #endif
 149
 150 #ifndef HAVE_INTXX_T
 151 # if (SIZEOF_CHAR == 1)
 152 typedef char int8_t;
 153 # else
 154 #  error "8 bit int type not found."
 155 # endif
 156 # if (SIZEOF_SHORT_INT == 2)
 157 typedef short int int16_t;
 158 # else
 159 #  ifdef _UNICOS
 160 #   if (SIZEOF_SHORT_INT == 4)
 161 typedef short int16_t;
 162 #   else
 163 typedef long  int16_t;
 164 #   endif
 165 #  else
 166 #   error "16 bit int type not found."
 167 #  endif /* _UNICOS */
 168 # endif
 169 # if (SIZEOF_INT == 4)
 170 typedef int int32_t;
 171 # else
 172 #  ifdef _UNICOS
 173 typedef long  int32_t;
 174 #  else
 175 #   error "32 bit int type not found."
 176 #  endif /* _UNICOS */
 177 # endif
 178 #endif
 179
 180 /* If sys/types.h does not supply u_intXX_t, supply them ourselves */
 181 #ifndef HAVE_U_INTXX_T
 182 # ifdef HAVE_UINTXX_T
 183 typedef uint8_t u_int8_t;
 184 typedef uint16_t u_int16_t;
 185 typedef uint32_t u_int32_t;
 186 # define HAVE_U_INTXX_T 1
 187 # else
 188 #  if (SIZEOF_CHAR == 1)
 189 typedef unsigned char u_int8_t;
 190 #  else
 191 #   error "8 bit int type not found."
 192 #  endif
 193 #  if (SIZEOF_SHORT_INT == 2)
 194 typedef unsigned short int u_int16_t;
 195 #  else
 196 #   ifdef _UNICOS
 197 #    if (SIZEOF_SHORT_INT == 4)
 198 typedef unsigned short u_int16_t;
 199 #    else
 200 typedef unsigned long  u_int16_t;
 201 #    endif
 202 #   else
 203 #    error "16 bit int type not found."
 204 #   endif
 205 #  endif
 206 #  if (SIZEOF_INT == 4)
 207 typedef unsigned int u_int32_t;
 208 #  else
 209 #   ifdef _UNICOS
 210 typedef unsigned long  u_int32_t;
 211 #   else
 212 #    error "32 bit int type not found."
 213 #   endif
 214 #  endif
 215 # endif
 216 #define __BIT_TYPES_DEFINED__
 217 #endif
 218
 219 /* 64-bit types */
 220 #ifndef HAVE_INT64_T
 221 # if (SIZEOF_LONG_INT == 8)
 222 typedef long int int64_t;
 223 # else
 224 #  if (SIZEOF_LONG_LONG_INT == 8)
 225 typedef long long int int64_t;
 226 #  endif
 227 # endif
 228 #endif
 229 #ifndef HAVE_U_INT64_T
 230 # if (SIZEOF_LONG_INT == 8)
 231 typedef unsigned long int u_int64_t;
 232 # else
 233 #  if (SIZEOF_LONG_LONG_INT == 8)
 234 typedef unsigned long long int u_int64_t;
 235 #  endif
 236 # endif
 237 #endif
 238
 239 #ifndef HAVE_U_CHAR
 240 typedef unsigned char u_char;
 241 # define HAVE_U_CHAR
 242 #endif /* HAVE_U_CHAR */
 243
 244 #ifndef SIZE_T_MAX
 245 #define SIZE_T_MAX ULONG_MAX
 246 #endif /* SIZE_T_MAX */
 247
 248 #ifndef HAVE_SIZE_T
 249 typedef unsigned int size_t;
 250 # define HAVE_SIZE_T
 251 # define SIZE_T_MAX UINT_MAX
 252 #endif /* HAVE_SIZE_T */
 253
 254 #ifndef HAVE_SSIZE_T
 255 typedef int ssize_t;
 256 # define HAVE_SSIZE_T
 257 #endif /* HAVE_SSIZE_T */
 258
 259 #ifndef HAVE_CLOCK_T
 260 typedef long clock_t;
 261 # define HAVE_CLOCK_T
 262 #endif /* HAVE_CLOCK_T */
 263
 264 #ifndef HAVE_SA_FAMILY_T
 265 typedef int sa_family_t;
 266 # define HAVE_SA_FAMILY_T
 267 #endif /* HAVE_SA_FAMILY_T */
 268
 269 #ifndef HAVE_PID_T
 270 typedef int pid_t;
 271 # define HAVE_PID_T
 272 #endif /* HAVE_PID_T */
 273
 274 #ifndef HAVE_SIG_ATOMIC_T
 275 typedef int sig_atomic_t;
 276 # define HAVE_SIG_ATOMIC_T
 277 #endif /* HAVE_SIG_ATOMIC_T */
 278
 279 #ifndef HAVE_MODE_T
 280 typedef int mode_t;
 281 # define HAVE_MODE_T
 282 #endif /* HAVE_MODE_T */
 283
 284 #if !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE___SS_FAMILY_IN_SS)
 285 # define ss_family __ss_family
 286 #endif /* !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE_SA_FAMILY_IN_SS) */
 287
 288 #ifndef HAVE_SYS_UN_H
 289 struct  sockaddr_un {
 290         short   sun_family;             /* AF_UNIX */
 291         char    sun_path[108];          /* path name (gag) */
 292 };
 293 #endif /* HAVE_SYS_UN_H */
 294
 295 #ifndef HAVE_IN_ADDR_T
 296 typedef u_int32_t       in_addr_t;
 297 #endif
 298
 299 #if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE)
 300 #define _STRUCT_WINSIZE
 301 struct winsize {
 302       unsigned short ws_row;          /* rows, in characters */
 303       unsigned short ws_col;          /* columns, in character */
 304       unsigned short ws_xpixel;       /* horizontal size, pixels */
 305       unsigned short ws_ypixel;       /* vertical size, pixels */
 306 };
 307 #endif
 308
 309 /* *-*-nto-qnx does not define this type in the system headers */
 310 #ifdef MISSING_FD_MASK
 311  typedef unsigned long int      fd_mask;
 312 #endif
 313
 314 /* Paths */
 315
 316 #ifndef _PATH_BSHELL
 317 # define _PATH_BSHELL "/bin/sh"
 318 #endif
 319 #ifndef _PATH_CSHELL
 320 # define _PATH_CSHELL "/bin/csh"
 321 #endif
 322 #ifndef _PATH_SHELLS
 323 # define _PATH_SHELLS "/etc/shells"
 324 #endif
 325
 326 #ifdef USER_PATH
 327 # ifdef _PATH_STDPATH
 328 #  undef _PATH_STDPATH
 329 # endif
 330 # define _PATH_STDPATH USER_PATH
 331 #endif
 332
 333 #ifndef _PATH_STDPATH
 334 # define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
 335 #endif
 336
 337 #ifndef SUPERUSER_PATH
 338 # define SUPERUSER_PATH _PATH_STDPATH
 339 #endif
 340
 341 #ifndef _PATH_DEVNULL
 342 # define _PATH_DEVNULL "/dev/null"
 343 #endif
 344
 345 #ifndef MAIL_DIRECTORY
 346 # define MAIL_DIRECTORY "/var/spool/mail"
 347 #endif
 348
 349 #ifndef MAILDIR
 350 # define MAILDIR MAIL_DIRECTORY
 351 #endif
 352
 353 #if !defined(_PATH_MAILDIR) && defined(MAILDIR)
 354 # define _PATH_MAILDIR MAILDIR
 355 #endif /* !defined(_PATH_MAILDIR) && defined(MAILDIR) */
 356
 357 #ifndef _PATH_NOLOGIN
 358 # define _PATH_NOLOGIN "/etc/nologin"
 359 #endif
 360
 361 /* Define this to be the path of the xauth program. */
 362 #ifdef XAUTH_PATH
 363 #define _PATH_XAUTH XAUTH_PATH
 364 #endif /* XAUTH_PATH */
 365
 366 /* derived from XF4/xc/lib/dps/Xlibnet.h */
 367 #ifndef X_UNIX_PATH
 368 #  ifdef __hpux
 369 #    define X_UNIX_PATH "/var/spool/sockets/X11/%u"
 370 #  else
 371 #    define X_UNIX_PATH "/tmp/.X11-unix/X%u"
 372 #  endif
 373 #endif /* X_UNIX_PATH */
 374 #define _PATH_UNIX_X X_UNIX_PATH
 375
 376 #ifndef _PATH_TTY
 377 # define _PATH_TTY "/dev/tty"
 378 #endif
 379
 380 /* Macros */
 381
 382 #if defined(HAVE_LOGIN_GETCAPBOOL) && defined(HAVE_LOGIN_CAP_H)
 383 # define HAVE_LOGIN_CAP
 384 #endif
 385
 386 #ifndef MAX
 387 # define MAX(a,b) (((a)>(b))?(a):(b))
 388 # define MIN(a,b) (((a)<(b))?(a):(b))
 389 #endif
 390
 391 #ifndef roundup
 392 # define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
 393 #endif
 394
 395 #ifndef timersub
 396 #define timersub(a, b, result)                                  \
 397    do {                                                         \
 398       (result)->tv_sec = (a)->tv_sec - (b)->tv_sec;             \
 399       (result)->tv_usec = (a)->tv_usec - (b)->tv_usec;          \
 400       if ((result)->tv_usec < 0) {                              \
 401          --(result)->tv_sec;                                    \
 402          (result)->tv_usec += 1000000;                          \
 403       }                                                         \
 404    } while (0)
 405 #endif
 406
 407 #ifndef TIMEVAL_TO_TIMESPEC
 408 #define TIMEVAL_TO_TIMESPEC(tv, ts) {                                   \
 409         (ts)->tv_sec = (tv)->tv_sec;                                    \
 410         (ts)->tv_nsec = (tv)->tv_usec * 1000;                           \
 411 }
 412 #endif
 413
 414 #ifndef TIMESPEC_TO_TIMEVAL
 415 #define TIMESPEC_TO_TIMEVAL(tv, ts) {                                   \
 416         (tv)->tv_sec = (ts)->tv_sec;                                    \
 417         (tv)->tv_usec = (ts)->tv_nsec / 1000;                           \
 418 }
 419 #endif
 420
 421 #ifndef __P
 422 # define __P(x) x
 423 #endif
 424
 425 #if !defined(IN6_IS_ADDR_V4MAPPED)
 426 # define IN6_IS_ADDR_V4MAPPED(a) \
 427         ((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \
 428          (((u_int32_t *) (a))[2] == htonl (0xffff)))
 429 #endif /* !defined(IN6_IS_ADDR_V4MAPPED) */
 430
 431 #if !defined(__GNUC__) || (__GNUC__ < 2)
 432 # define __attribute__(x)
 433 #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
 434
 435 #ifndef __dead
 436 # define __dead __attribute__((noreturn))
 437 #endif
 438
 439 #if !defined(HAVE_ATTRIBUTE__SENTINEL__) && !defined(__sentinel__)
 440 # define __sentinel__
 441 #endif
 442
 443 /* *-*-nto-qnx doesn't define this macro in the system headers */
 444 #ifdef MISSING_HOWMANY
 445 # define howmany(x,y)   (((x)+((y)-1))/(y))
 446 #endif
 447
 448 #ifndef OSSH_ALIGNBYTES
 449 #define OSSH_ALIGNBYTES (sizeof(int) - 1)
 450 #endif
 451 #ifndef __CMSG_ALIGN
 452 #define __CMSG_ALIGN(p) (((u_int)(p) + OSSH_ALIGNBYTES) &~ OSSH_ALIGNBYTES)
 453 #endif
 454
 455 /* Length of the contents of a control message of length len */
 456 #ifndef CMSG_LEN
 457 #define CMSG_LEN(len)   (__CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
 458 #endif
 459
 460 /* Length of the space taken up by a padded control message of length len */
 461 #ifndef CMSG_SPACE
 462 #define CMSG_SPACE(len) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(len))
 463 #endif
 464
 465 /* given pointer to struct cmsghdr, return pointer to data */
 466 #ifndef CMSG_DATA
 467 #define CMSG_DATA(cmsg) ((u_char *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
 468 #endif /* CMSG_DATA */
 469
 470 /*
 471  * RFC 2292 requires to check msg_controllen, in case that the kernel returns
 472  * an empty list for some reasons.
 473  */
 474 #ifndef CMSG_FIRSTHDR
 475 #define CMSG_FIRSTHDR(mhdr) \
 476         ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
 477          (struct cmsghdr *)(mhdr)->msg_control : \
 478          (struct cmsghdr *)NULL)
 479 #endif /* CMSG_FIRSTHDR */
 480
 481 #ifndef offsetof
 482 # define offsetof(type, member) ((size_t) &((type *)0)->member)
 483 #endif
 484
 485 /* Function replacement / compatibility hacks */
 486
 487 #if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO))
 488 # define HAVE_GETADDRINFO
 489 #endif
 490
 491 #ifndef HAVE_GETOPT_OPTRESET
 492 # undef getopt
 493 # undef opterr
 494 # undef optind
 495 # undef optopt
 496 # undef optreset
 497 # undef optarg
 498 # define getopt(ac, av, o)  BSDgetopt(ac, av, o)
 499 # define opterr             BSDopterr
 500 # define optind             BSDoptind
 501 # define optopt             BSDoptopt
 502 # define optreset           BSDoptreset
 503 # define optarg             BSDoptarg
 504 #endif
 505
 506 /* In older versions of libpam, pam_strerror takes a single argument */
 507 #ifdef HAVE_OLD_PAM
 508 # define PAM_STRERROR(a,b) pam_strerror((b))
 509 #else
 510 # define PAM_STRERROR(a,b) pam_strerror((a),(b))
 511 #endif
 512
 513 #ifdef PAM_SUN_CODEBASE
 514 # define PAM_MSG_MEMBER(msg, n, member) ((*(msg))[(n)].member)
 515 #else
 516 # define PAM_MSG_MEMBER(msg, n, member) ((msg)[(n)]->member)
 517 #endif
 518
 519 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO)
 520 # undef HAVE_GETADDRINFO
 521 #endif
 522 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_FREEADDRINFO)
 523 # undef HAVE_FREEADDRINFO
 524 #endif
 525 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GAI_STRERROR)
 526 # undef HAVE_GAI_STRERROR
 527 #endif
 528
 529 #if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX)
 530 # undef HAVE_UPDWTMPX
 531 #endif
 532
 533 #if !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY)
 534 # define memmove(s1, s2, n) bcopy((s2), (s1), (n))
 535 #endif /* !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY) */
 536
 537 #if defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX)
 538 #  define USE_VHANGUP
 539 #endif /* defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX) */
 540
 541 #ifndef GETPGRP_VOID
 542 # define getpgrp() getpgrp(0)
 543 #endif
 544
 545 #ifdef USE_BSM_AUDIT
 546 # define SSH_AUDIT_EVENTS
 547 # define CUSTOM_SSH_AUDIT_EVENTS
 548 #endif
 549
 550 /* OPENSSL_free() is Free() in versions before OpenSSL 0.9.6 */
 551 #if !defined(OPENSSL_VERSION_NUMBER) || (OPENSSL_VERSION_NUMBER < 0x0090600f)
 552 # define OPENSSL_free(x) Free(x)
 553 #endif
 554
 555 #if !defined(HAVE___func__) && defined(HAVE___FUNCTION__)
 556 #  define __func__ __FUNCTION__
 557 #elif !defined(HAVE___func__)
 558 #  define __func__ ""
 559 #endif
 560
 561 #if defined(KRB5) && !defined(HEIMDAL)
 562 #  define krb5_get_err_text(context,code) error_message(code)
 563 #endif
 564
 565 #if defined(SKEYCHALLENGE_4ARG)
 566 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c,d)
 567 #else
 568 # define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c)
 569 #endif
 570
 571 /* Maximum number of file descriptors available */
 572 #ifdef HAVE_SYSCONF
 573 # define SSH_SYSFDMAX sysconf(_SC_OPEN_MAX)
 574 #else
 575 # define SSH_SYSFDMAX 10000
 576 #endif
 577
 578
 579 /*
 580  * Define this to use pipes instead of socketpairs for communicating with the
 581  * client program.  Socketpairs do not seem to work on all systems.
 582  *
 583  * configure.ac sets this for a few OS's which are known to have problems
 584  * but you may need to set it yourself
 585  */
 586 /* #define USE_PIPES 1 */
 587
 588 /**
 589  ** login recorder definitions
 590  **/
 591
 592 /* FIXME: put default paths back in */
 593 #ifndef UTMP_FILE
 594 #  ifdef _PATH_UTMP
 595 #    define UTMP_FILE _PATH_UTMP
 596 #  else
 597 #    ifdef CONF_UTMP_FILE
 598 #      define UTMP_FILE CONF_UTMP_FILE
 599 #    endif
 600 #  endif
 601 #endif
 602 #ifndef WTMP_FILE
 603 #  ifdef _PATH_WTMP
 604 #    define WTMP_FILE _PATH_WTMP
 605 #  else
 606 #    ifdef CONF_WTMP_FILE
 607 #      define WTMP_FILE CONF_WTMP_FILE
 608 #    endif
 609 #  endif
 610 #endif
 611 /* pick up the user's location for lastlog if given */
 612 #ifndef LASTLOG_FILE
 613 #  ifdef _PATH_LASTLOG
 614 #    define LASTLOG_FILE _PATH_LASTLOG
 615 #  else
 616 #    ifdef CONF_LASTLOG_FILE
 617 #      define LASTLOG_FILE CONF_LASTLOG_FILE
 618 #    endif
 619 #  endif
 620 #endif
 621
 622 #if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
 623 # define USE_SHADOW
 624 #endif
 625
 626 /* The login() library function in libutil is first choice */
 627 #if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN)
 628 #  define USE_LOGIN
 629
 630 #else
 631 /* Simply select your favourite login types. */
 632 /* Can't do if-else because some systems use several... <sigh> */
 633 #  if defined(UTMPX_FILE) && !defined(DISABLE_UTMPX)
 634 #    define USE_UTMPX
 635 #  endif
 636 #  if defined(UTMP_FILE) && !defined(DISABLE_UTMP)
 637 #    define USE_UTMP
 638 #  endif
 639 #  if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX)
 640 #    define USE_WTMPX
 641 #  endif
 642 #  if defined(WTMP_FILE) && !defined(DISABLE_WTMP)
 643 #    define USE_WTMP
 644 #  endif
 645
 646 #endif
 647
 648 #ifndef UT_LINESIZE
 649 # define UT_LINESIZE 8
 650 #endif
 651
 652 /* I hope that the presence of LASTLOG_FILE is enough to detect this */
 653 #if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG)
 654 #  define USE_LASTLOG
 655 #endif
 656
 657 #ifdef HAVE_OSF_SIA
 658 # ifdef USE_SHADOW
 659 #  undef USE_SHADOW
 660 # endif
 661 # define CUSTOM_SYS_AUTH_PASSWD 1
 662 #endif
 663
 664 /* HP-UX 11.11 */
 665 #ifdef BTMP_FILE
 666 # define _PATH_BTMP BTMP_FILE
 667 #endif
 668
 669 #if defined(USE_BTMP) && defined(_PATH_BTMP)
 670 # define CUSTOM_FAILED_LOGIN
 671 #endif
 672
 673 /** end of login recorder definitions */
 674
 675 #ifdef BROKEN_GETGROUPS
 676 # define getgroups(a,b) ((a)==0 && (b)==NULL ? NGROUPS_MAX : getgroups((a),(b)))
 677 #endif
 678
 679 #if defined(HAVE_MMAP) && defined(BROKEN_MMAP)
 680 # undef HAVE_MMAP
 681 #endif
 682
 683 #endif /* _DEFINES_H */