contrib/tcsh-6/tc.os.h

   1 /* $Header: /p/tcsh/cvsroot/tcsh/tc.os.h,v 3.105 2011/02/04 18:00:26 christos Exp $ */
   2 /*
   3  * tc.os.h: Shell os dependent defines
   4  */
   5 /*-
   6  * Copyright (c) 1980, 1991 The Regents of the University of California.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33 #ifndef _h_tc_os
  34 #define _h_tc_os
  35
  36 #ifdef notdef
  37 /*
  38  * for SVR4 and linux we used to fork pipelines backwards.
  39  * This should not be needed any more.
  40  * more info in sh.sem.c
  41  */
  42 # define BACKPIPE
  43 #endif /* notdef */
  44
  45 #ifdef __CYGWIN__
  46 #  undef NOFILE
  47 #  define NOFILE sysconf(_SC_OPEN_MAX)
  48 #endif
  49
  50 #ifdef   _VMS_POSIX
  51 # ifndef  NOFILE
  52 #  define  NOFILE 64
  53 # endif /* NOFILE */
  54 # define  nice(a)       setprio((getpid()),a)
  55 # include <sys/time.h>    /* for time stuff in tc.prompt.c */
  56 # include <limits.h>
  57 #endif /* atp vmsposix */
  58
  59 #if defined(DECOSF1) || defined(HPUXVERSION)
  60 # include <sys/signal.h>
  61 #endif /* DECOSF1 || HPUXVERSION */
  62
  63 #ifdef DECOSF1
  64 # include <sys/ioctl.h>
  65 #endif /* DECOSF1 */
  66
  67 #if defined(OPEN_MAX) && !defined(NOFILE)
  68 # define NOFILE OPEN_MAX
  69 #endif /* OPEN_MAX && !NOFILE */
  70
  71 #if defined(USR_NFDS) && !defined(NOFILE)
  72 # define NOFILE USR_NFDS
  73 #endif /* USR_NFDS && !NOFILE */
  74
  75 #ifndef NOFILE
  76 # define NOFILE 256
  77 #endif /* NOFILE */
  78
  79 #ifdef OREO
  80 # include <sys/time.h>
  81 # ifdef notdef
  82   /* Don't include it, because it defines things we don't really have */
  83 #  include <sys/resource.h>
  84 # endif /* notdef */
  85 # ifdef POSIX
  86 #  include <sys/tty.h>
  87 #  include <termios.h>
  88 # endif /* POSIX */
  89 #endif /* OREO */
  90
  91 #ifdef __QNXNTO__
  92 #include <sys/resource.h>
  93 #include <fcntl.h>
  94 #undef O_TEXT
  95 #undef O_BINARY
  96 #endif
  97
  98 #ifdef convex
  99 # include <sys/dmon.h>
 100 #endif /* convex */
 101
 102 #ifdef titan
 103 extern int end;
 104 #endif /* titan */
 105
 106 #ifdef hpux
 107 # ifdef lint
 108 /*
 109  * Hpux defines struct ucred, in <sys/user.h>, but if I include that
 110  * then I need to include the *world*
 111  * [all this to pass lint cleanly!!!]
 112  * so I define struct ucred here...
 113  */
 114 struct ucred {
 115     int     foo;
 116 };
 117 # endif /* lint */
 118
 119 /*
 120  * hpux 7.0 does not define it
 121  */
 122 # ifndef CSUSP
 123 #  define CSUSP 032
 124 # endif /* CSUSP */
 125
 126 # include <signal.h>
 127 # if !defined(hp9000s500) && !(defined(SIGRTMAX) || defined(SIGRTMIN))
 128 /*
 129  * hpux < 7
 130  */
 131 #  include <sys/bsdtty.h>
 132 # endif /* !hp9000s500 && !(SIGRTMAX || SIGRTMIN) */
 133
 134 # ifndef TIOCSTI
 135 #  include <sys/strtio.h>
 136 # endif
 137 #endif /* hpux */
 138
 139 /*
 140  * ISC does not define CSUSP
 141  */
 142 #ifdef ISC
 143 # ifndef CSUSP
 144 #  define CSUSP 032
 145 # endif /* CSUSP */
 146 # if defined(POSIX) && !defined(TIOCGWINSZ)
 147 /*
 148  * ISC defines this only in termio.h. If we are using POSIX and include
 149  * termios.h, then we define it ourselves so that window resizing works.
 150  */
 151 #  define TIOCGWINSZ      (('T'<<8)|104)
 152 # endif /* POSIX && !TIOCGWINSZ */
 153 #endif /* ISC */
 154
 155 #ifdef ISC202
 156 # undef TIOCGWINSZ
 157 #endif /* ISC202 */
 158
 159 /*
 160  * XXX: This will be changed soon to
 161  * #if (SYSVREL > 0) && defined(TIOCGWINSZ)
 162  * If that breaks on your machine, let me know.
 163  *
 164  * It would break on glibc, where all this is
 165  * defined in <termios.h>. Wrapper added.
 166  */
 167 #if !defined(__linux__) && !defined(__GNU__) && !defined(__GLIBC__) && !defined(_VMS_POSIX)
 168 # if defined(INTEL) || defined(u3b2) || defined (u3b5) || defined(ub15) || defined(u3b20d) || defined(ISC) || defined(SCO) || defined(tower32)
 169 #  ifdef TIOCGWINSZ
 170 /*
 171  * for struct winsiz
 172  */
 173 #   include <sys/stream.h>
 174 #   include <sys/ptem.h>
 175 #  endif /* TIOCGWINSZ */
 176 # endif /* INTEL || u3b2 || u3b5 || ub15 || u3b20d || ISC || SCO || tower32 */
 177 #endif /* !glibc && !_VMS_POSIX */
 178
 179 #ifdef IRIS4D
 180 # include <sys/time.h>
 181 # include <sys/resource.h>
 182 #endif /* IRIS4D */
 183
 184 /*
 185  * For some versions of system V software, specially ones that use the
 186  * Wollongong Software TCP/IP, the FIOCLEX, FIONCLEX, FIONBIO calls
 187  * might not work correctly for file descriptors [they work only for
 188  * sockets]. So we try to use first the fcntl() and we only use the
 189  * ioctl() form, only if we don't have the fcntl() one.
 190  *
 191  * From: scott@craycos.com (Scott Bolte)
 192  */
 193 #ifndef WINNT_NATIVE
 194 # ifdef F_SETFD
 195 #  ifndef FD_CLOEXEC
 196 #   define FD_CLOEXEC 1
 197 #  endif
 198 #  define close_on_exec(fd, v) fcntl((fd), F_SETFD, ((v) ? FD_CLOEXEC : 0))
 199 # else /* !F_SETFD */
 200 #  ifdef FIOCLEX
 201 #   define close_on_exec(fd, v) ioctl((fd), ((v) ? FIOCLEX : FIONCLEX), NULL)
 202 #  else /* !FIOCLEX */
 203 #   define close_on_exec(fd, v) /* Nothing */
 204 #  endif /* FIOCLEX */
 205 # endif /* F_SETFD */
 206 #else /* WINNT_NATIVE */
 207 # define close_on_exec(fd, v) nt_close_on_exec((fd),(v))
 208 #endif /* !WINNT_NATIVE */
 209
 210 /*
 211  * Stat
 212  */
 213 #ifdef ISC
 214 /* these are not defined for _POSIX_SOURCE under ISC 2.2 */
 215 # ifndef S_IFMT
 216 #  define S_IFMT        0170000         /* type of file */
 217 #  define S_IFDIR       0040000         /* directory */
 218 #  define S_IFCHR       0020000         /* character special */
 219 #  define S_IFBLK       0060000         /* block special */
 220 #  define S_IFREG       0100000         /* regular */
 221 #  define S_IFIFO       0010000         /* fifo */
 222 #  define S_IFNAM       0050000         /* special named file */
 223 #  ifndef ISC202
 224 #   define S_IFLNK      0120000         /* symbolic link */
 225 #  endif /* ISC202 */
 226 # endif /* S_IFMT */
 227 #endif /* ISC */
 228
 229 #ifdef STAT_MACROS_BROKEN
 230 # undef S_ISDIR
 231 # undef S_ISCHR
 232 # undef S_ISBLK
 233 # undef S_ISREG
 234 # undef S_ISFIFO
 235 # undef S_ISNAM
 236 # undef S_ISLNK
 237 # undef S_ISSOCK
 238 #endif /* STAT_MACROS_BROKEN */
 239
 240 #ifdef S_IFMT
 241 # if !defined(S_ISDIR) && defined(S_IFDIR)
 242 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 243 # endif /* ! S_ISDIR && S_IFDIR */
 244 # if !defined(S_ISCHR) && defined(S_IFCHR)
 245 #  define S_ISCHR(a)    (((a) & S_IFMT) == S_IFCHR)
 246 # endif /* ! S_ISCHR && S_IFCHR */
 247 # if !defined(S_ISBLK) && defined(S_IFBLK)
 248 #  define S_ISBLK(a)    (((a) & S_IFMT) == S_IFBLK)
 249 # endif /* ! S_ISBLK && S_IFBLK */
 250 # if !defined(S_ISREG) && defined(S_IFREG)
 251 #  define S_ISREG(a)    (((a) & S_IFMT) == S_IFREG)
 252 # endif /* ! S_ISREG && S_IFREG */
 253 # if !defined(S_ISFIFO) && defined(S_IFIFO)
 254 #  define S_ISFIFO(a)   (((a) & S_IFMT) == S_IFIFO)
 255 # endif /* ! S_ISFIFO && S_IFIFO */
 256 # if !defined(S_ISNAM) && defined(S_IFNAM)
 257 #  define S_ISNAM(a)    (((a) & S_IFMT) == S_IFNAM)
 258 # endif /* ! S_ISNAM && S_IFNAM */
 259 # if !defined(S_ISLNK) && defined(S_IFLNK)
 260 #  define S_ISLNK(a)    (((a) & S_IFMT) == S_IFLNK)
 261 # endif /* ! S_ISLNK && S_IFLNK */
 262 # if !defined(S_ISSOCK) && defined(S_IFSOCK)
 263 #  define S_ISSOCK(a)   (((a) & S_IFMT) == S_IFSOCK)
 264 # endif /* ! S_ISSOCK && S_IFSOCK */
 265 #endif /* S_IFMT */
 266
 267 #ifdef tower32
 268 /* The header files lie; we really don't have symlinks */
 269 # undef S_ISLNK
 270 # undef S_IFLNK
 271 #endif /* tower32 */
 272
 273 #ifndef S_IREAD
 274 # define S_IREAD 0000400
 275 #endif /* S_IREAD */
 276 #ifndef S_IROTH
 277 # define S_IROTH (S_IREAD >> 6)
 278 #endif /* S_IROTH */
 279 #ifndef S_IRGRP
 280 # define S_IRGRP (S_IREAD >> 3)
 281 #endif /* S_IRGRP */
 282 #ifndef S_IRUSR
 283 # define S_IRUSR S_IREAD
 284 #endif /* S_IRUSR */
 285
 286 #ifndef S_IWRITE
 287 # define S_IWRITE 0000200
 288 #endif /* S_IWRITE */
 289 #ifndef S_IWOTH
 290 # define S_IWOTH (S_IWRITE >> 6)
 291 #endif /* S_IWOTH */
 292 #ifndef S_IWGRP
 293 # define S_IWGRP (S_IWRITE >> 3)
 294 #endif /* S_IWGRP */
 295 #ifndef S_IWUSR
 296 # define S_IWUSR S_IWRITE
 297 #endif /* S_IWUSR */
 298
 299 #ifndef S_IEXEC
 300 # define S_IEXEC 0000100
 301 #endif /* S_IEXEC */
 302 #ifndef S_IXOTH
 303 # define S_IXOTH (S_IEXEC >> 6)
 304 #endif /* S_IXOTH */
 305 #ifndef S_IXGRP
 306 # define S_IXGRP (S_IEXEC >> 3)
 307 #endif /* S_IXGRP */
 308 #ifndef S_IXUSR
 309 # define S_IXUSR S_IEXEC
 310 #endif /* S_IXUSR */
 311
 312 #ifndef S_ISUID
 313 # define S_ISUID 0004000        /* setuid */
 314 #endif /* S_ISUID */
 315 #ifndef S_ISGID
 316 # define S_ISGID 0002000        /* setgid */
 317 #endif /* S_ISGID */
 318 #ifndef S_ISVTX
 319 # define S_ISVTX 0001000        /* sticky */
 320 #endif /* S_ISVTX */
 321 #ifndef S_ENFMT
 322 # define S_ENFMT S_ISGID        /* record locking enforcement flag */
 323 #endif /* S_ENFMT */
 324
 325 /* the following macros are for POSIX conformance */
 326 #ifndef S_IRWXU
 327 # define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
 328 #endif /* S_IRWXU */
 329 #ifndef S_IRWXG
 330 # define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
 331 #endif /* S_IRWXG */
 332 #ifndef S_IRWXO
 333 # define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
 334 #endif /* S_IRWXO */
 335
 336 /*
 337  * Access()
 338  */
 339 #ifndef F_OK
 340 # define F_OK 0
 341 #endif /* F_OK */
 342 #ifndef X_OK
 343 # define X_OK 1
 344 #endif /* X_OK */
 345 #ifndef W_OK
 346 # define W_OK 2
 347 #endif /* W_OK */
 348 #ifndef R_OK
 349 # define R_OK 4
 350 #endif /* R_OK */
 351
 352 /*
 353  * Open()
 354  */
 355 #ifndef O_RDONLY
 356 # define O_RDONLY       0
 357 #endif /* O_RDONLY */
 358 #ifndef O_WRONLY
 359 # define O_WRONLY       1
 360 #endif /* O_WRONLY */
 361 #ifndef O_RDWR
 362 # define O_RDWR         2
 363 #endif /* O_RDWR */
 364 #ifndef O_TEMPORARY
 365 # define O_TEMPORARY    0
 366 #endif /* O_TEMPORARY */
 367 #ifndef O_EXCL
 368 # define O_EXCL         0
 369 #endif /* O_EXCL */
 370 #ifndef O_LARGEFILE
 371 # define O_LARGEFILE    0
 372 #endif /* O_LARGEFILE */
 373 #ifndef O_CREAT
 374 # define O_CREAT        0
 375 #endif /* O_CREAT */
 376
 377 /*
 378  * Lseek()
 379  */
 380 #ifndef L_SET
 381 # ifdef SEEK_SET
 382 #  define L_SET         SEEK_SET
 383 # else /* !SEEK_SET */
 384 #  define L_SET         0
 385 # endif /* SEEK_SET */
 386 #endif /* L_SET */
 387 #ifndef L_INCR
 388 # ifdef SEEK_CUR
 389 #  define L_INCR        SEEK_CUR
 390 # else /* !SEEK_CUR */
 391 #  define L_INCR        1
 392 # endif /* SEEK_CUR */
 393 #endif /* L_INCR */
 394 #ifndef L_XTND
 395 # ifdef SEEK_END
 396 #  define L_XTND        SEEK_END
 397 # else /* !SEEK_END */
 398 #  define L_XTND        2
 399 # endif /* SEEK_END */
 400 #endif /* L_XTND */
 401
 402 #if !defined (HAVE_SETPGID) && !defined (SETPGRP_VOID)
 403 # define setpgid(pid, pgrp)     setpgrp(pid, pgrp)
 404 #endif
 405
 406 #if defined(BSDJOBS) && !(defined(POSIX) && defined(POSIXJOBS))
 407 # define NEEDtcgetpgrp
 408 #endif /* BSDJOBS && !(POSIX && POSIXJOBS) */
 409
 410 #ifdef RENO
 411 /*
 412  * RENO has this broken. It is fixed on 4.4BSD
 413  */
 414 # define NEEDtcgetpgrp
 415 #endif /* RENO */
 416
 417 #ifdef SXA
 418 # ifndef _BSDX_
 419 /*
 420  * Only needed in the system V environment.
 421  */
 422 #  define setrlimit     bsd_setrlimit
 423 #  define getrlimit     bsd_getrlimit
 424 # endif /* _BSDX_ */
 425 #endif /* SXA */
 426
 427 #if defined(_MINIX) || defined(__EMX__)
 428 # define HAVENOLIMIT
 429 /*
 430  * Minix does not have these, so...
 431  */
 432 # define getpgrp                getpid
 433 #endif /* _MINIX || __EMX__ */
 434
 435 #ifdef __EMX__
 436 /* XXX: How can we get the tty name in emx? */
 437 # define ttyname(fd) (isatty(fd) ? "/dev/tty" : NULL)
 438 #endif /* __EMX__ */
 439
 440 #ifndef S_IFLNK
 441 # define lstat stat
 442 #endif /* S_IFLNK */
 443
 444
 445 #if defined(BSDTIMES) && !defined(_SEQUENT_)
 446 typedef struct timeval timeval_t;
 447 #endif /* BSDTIMES && ! _SEQUENT_ */
 448
 449 #ifdef NeXT
 450 /*
 451  * From Tony_Mason@transarc.com, override NeXT's malloc stuff.
 452  */
 453 # define malloc tcsh_malloc
 454 # define calloc tcsh_calloc
 455 # define realloc tcsh_realloc
 456 # define free tcsh_free
 457 #endif /* NeXT */
 458
 459 #if defined(HAVE_GETHOSTNAME) && !HAVE_DECL_GETHOSTNAME
 460 extern int gethostname (char *, int);
 461 #endif
 462
 463 #ifndef GETPGRP_VOID
 464 # define mygetpgrp()    getpgrp(0)
 465 #else
 466 # define mygetpgrp()    getpgrp()
 467 #endif
 468
 469 #if !defined(POSIX) || defined(SUNOS4) || defined(UTekV) || defined(sysV88)
 470 extern time_t time();
 471 extern char *getenv();
 472 extern int atoi();
 473 # ifndef __EMX__
 474 extern char *ttyname();
 475 # endif /* __EMX__ */
 476
 477
 478 # if defined(SUNOS4)
 479 #  ifndef toupper
 480 extern int toupper (int);
 481 #  endif /* toupper */
 482 #  ifndef tolower
 483 extern int tolower (int);
 484 #  endif /* tolower */
 485 extern caddr_t sbrk (int);
 486 # else /* !SUNOS4 */
 487 #  ifndef WINNT_NATIVE
 488 #   ifdef hpux
 489 extern void abort();
 490 extern void qsort();
 491 #   endif /* hpux */
 492 #  endif /* !WINNT_NATIVE */
 493 # endif /* SUNOS4 */
 494 #ifndef _CX_UX
 495 extern void perror();
 496 #endif
 497
 498 # ifdef BSD
 499 extern uid_t getuid(), geteuid();
 500 extern gid_t getgid(), getegid();
 501 # endif /* BSD */
 502
 503 # ifdef SYSMALLOC
 504 extern memalign_t malloc();
 505 extern memalign_t realloc();
 506 extern memalign_t calloc();
 507 extern void free();
 508 # endif /* SYSMALLOC */
 509
 510 # ifdef BSDJOBS
 511 #  ifdef BSDTIMES
 512 #   ifdef __MACHTEN__
 513 extern pid_t wait3();
 514 #   endif /* __MACHTEN__ */
 515 #  endif /* BSDTIMES */
 516 # endif /* BSDJOBS */
 517
 518 # if (!defined(fps500) && !defined(apollo) && !defined(__lucid) && !defined(HPBSD) && !defined(DECOSF1))
 519 extern void setpwent();
 520 extern void endpwent();
 521 # endif /* !fps500 && !apollo && !__lucid && !HPBSD && !DECOSF1 */
 522
 523 # ifndef __STDC__
 524 extern struct passwd *getpwuid(), *getpwnam(), *getpwent();
 525 #  ifdef HAVE_SHADOW_H
 526 extern struct spwd *getspnam(), *getspent();
 527 #  endif /* HAVE_SHADOW_H */
 528 #  if defined(HAVE_AUTH_H) && defined(HAVE_GETAUTHUID)
 529 extern struct authorization *getauthuid();
 530 #  endif /* HAVE_AUTH_H && HAVE_GETAUTHUID */
 531 # endif /* __STDC__ */
 532
 533 # ifndef getcwd
 534 extern char *getcwd();
 535 # endif /* getcwd */
 536
 537 #else /* POSIX || !SUNOS4 || !UTekV || !sysV88 */
 538
 539 # if (defined(SUNOS4) && !defined(__GNUC__)) || defined(_IBMR2) || defined(_IBMESA)
 540 extern char *getvwd();
 541 # endif /* (SUNOS4 && ! __GNUC__) || _IBMR2 || _IBMESA */
 542
 543 # ifdef SCO
 544 extern char *ttyname();
 545 # endif /* SCO */
 546
 547 # ifdef __clipper__
 548 extern char *ttyname();
 549 # endif /* __clipper__ */
 550
 551 #endif /* !POSIX || SUNOS4 || UTekV || sysV88 */
 552
 553 #if defined(SUNOS4) && __GNUC__ == 2
 554 /*
 555  * Somehow these are missing
 556  */
 557 extern int ioctl (int, int, ...);
 558 extern int readlink (const char *, char *, size_t);
 559 extern void setgrent (void);
 560 extern void endgrent (void);
 561 # ifdef REMOTEHOST
 562 #  ifndef _SOCKLEN_T    /* Avoid Solaris 2.7 bogosity. */
 563 struct sockaddr;
 564 extern int getpeername (int, struct sockaddr *, int *);
 565 #  endif /* _SOCKLEN_T */
 566 # endif /* REMOTEHOST */
 567 #endif /* SUNOS4 && __GNUC__ == 2 */
 568
 569 #if (defined(BSD) && !defined(BSD4_4)) || defined(SUNOS4)
 570 # if defined(__alpha) && defined(__osf__) && DECOSF1 < 200
 571 extern void bcopy       (const void *, void *, size_t);
 572 #  define memmove(a, b, c) (bcopy((char *) (b), (char *) (a), (int) (c)), a)
 573 # endif /* __alpha && __osf__ && DECOSF1 < 200 */
 574 #endif /* (BSD && !BSD4_4) || SUNOS4 */
 575
 576 #ifdef SUNOS4
 577 # include <memory.h>    /* memset should be declared in <string.h> but isn't */
 578 #endif /* SUNOS4 */
 579
 580 #if SYSVREL == 4
 581 # ifdef REMOTEHOST
 582 /* Irix6 defines getpeername(int, void *, int *) which conflicts with
 583    the definition below. */
 584 #  if !defined(__sgi) && !defined(_OSD_POSIX) && !defined(__MVS__)
 585 #   ifndef _SOCKLEN_T   /* Avoid Solaris 2.7 bogosity. */
 586 struct sockaddr;
 587 extern int getpeername (int, struct sockaddr *, int *);
 588 #   endif /* _SOCKLEN_T */
 589 #  endif /* !__sgi && !_OSD_POSIX && !__MVS__ */
 590 # endif /* REMOTEHOST */
 591 # ifndef BSDTIMES
 592 extern int getrlimit (int, struct rlimit *);
 593 extern int setrlimit (int, const struct rlimit *);
 594 # endif /* !BSDTIMES */
 595 # if defined(SOLARIS2)
 596 extern char *strerror (int);
 597 # endif /* SOLARIS2 */
 598 #endif /* SYSVREL == 4 */
 599
 600 #if defined(__alpha) && defined(__osf__) && DECOSF1 < 200
 601 /* These are ok for 1.3, but conflict with the header files for 2.0 */
 602 extern char *sbrk (ssize_t);
 603 extern int ioctl (int, unsigned long, char *);
 604 extern pid_t vfork (void);
 605 extern int killpg (pid_t, int);
 606 #endif /* __osf__ && __alpha && DECOSF1 < 200 */
 607
 608 #ifndef va_copy
 609 # ifdef __va_copy
 610 #  define va_copy(DEST, SRC) __va_copy(DEST, SRC)
 611 # else
 612 #  define va_copy(DEST, SRC) memcpy(&(DEST), &(SRC), sizeof(va_list))
 613 # endif
 614 #endif
 615
 616 #if defined(__CYGWIN__) && !defined(NO_CRYPT)
 617 extern char *cygwin_xcrypt(struct passwd *, const char *, const char *);
 618 #endif /* __CYGWIN__ && !NO_CRYPT */
 619
 620 #endif /* _h_tc_os */