tc.os.h revision 100616
1/* $Header: /src/pub/tcsh/tc.os.h,v 3.88 2002/05/16 13:51:26 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#ifndef WINNT_NATIVE 37#define NEEDstrerror /* Too hard to find which systems have it */ 38#endif /* WINNT_NATIVE */ 39 40 41#ifdef notdef 42/* 43 * for SVR4 and linux we used to fork pipelines backwards. 44 * This should not be needed any more. 45 * more info in sh.sem.c 46 */ 47# define BACKPIPE 48#endif /* notdef */ 49 50#ifdef __CYGWIN__ 51# undef NEEDstrerror 52#endif 53 54#ifdef _VMS_POSIX 55# ifndef NOFILE 56# define NOFILE 64 57# endif /* NOFILE */ 58# define nice(a) setprio((getpid()),a) 59# undef NEEDstrerror /* won't get sensible error messages otherwise */ 60# define NEEDgethostname 61# include <sys/time.h> /* for time stuff in tc.prompt.c */ 62# include <limits.h> 63#endif /* atp vmsposix */ 64 65#if defined(DECOSF1) || defined(HPUXVERSION) 66# include <sys/signal.h> 67#endif /* DECOSF1 || HPUXVERSION */ 68 69#ifdef DECOSF1 70# include <sys/ioctl.h> 71#endif /* DECOSF1 */ 72 73#if defined(OPEN_MAX) && !defined(NOFILE) 74# define NOFILE OPEN_MAX 75#endif /* OPEN_MAX && !NOFILE */ 76 77#if defined(USR_NFDS) && !defined(NOFILE) 78# define NOFILE USR_NFDS 79#endif /* USR_NFDS && !NOFILE */ 80 81#ifndef NOFILE 82# define NOFILE 256 83#endif /* NOFILE */ 84 85#if defined(linux) || defined(__NetBSD__) || defined(__FreeBSD__) || SYSVREL >= 4 || defined(_MINIX_VMD) 86# undef NEEDstrerror 87#endif /* linux || __NetBSD__ || __FreeBSD__ || SYSVREL >= 4 || _MINIX_VMD */ 88 89#if !defined(pyr) && !defined(sinix) 90/* Pyramid's cpp complains about the next line */ 91# if defined(BSD) && BSD >= 199306 92# undef NEEDstrerror 93# endif /* BSD && BSD >= 199306 */ 94#endif /* pyr */ 95 96#ifdef OREO 97# include <sys/time.h> 98# ifdef notdef 99 /* Don't include it, because it defines things we don't really have */ 100# include <sys/resource.h> 101# endif /* notdef */ 102# ifdef POSIX 103# include <sys/tty.h> 104# include <termios.h> 105# endif /* POSIX */ 106#endif /* OREO */ 107 108#ifndef NCARGS 109# ifdef _SC_ARG_MAX 110# define NCARGS sysconf(_SC_ARG_MAX) 111# else /* !_SC_ARG_MAX */ 112# ifdef ARG_MAX 113# define NCARGS ARG_MAX 114# else /* !ARG_MAX */ 115# ifdef _MINIX 116# define NCARGS 80 117# else /* !_MINIX */ 118# define NCARGS 1024 119# endif /* _MINIX */ 120# endif /* ARG_MAX */ 121# endif /* _SC_ARG_MAX */ 122#endif /* NCARGS */ 123 124#ifdef convex 125# include <sys/dmon.h> 126#endif /* convex */ 127 128#ifdef titan 129extern int end; 130#endif /* titan */ 131 132#ifdef hpux 133# ifdef lint 134/* 135 * Hpux defines struct ucred, in <sys/user.h>, but if I include that 136 * then I need to include the *world* 137 * [all this to pass lint cleanly!!!] 138 * so I define struct ucred here... 139 */ 140struct ucred { 141 int foo; 142}; 143# endif /* lint */ 144 145/* 146 * hpux 7.0 does not define it 147 */ 148# ifndef CSUSP 149# define CSUSP 032 150# endif /* CSUSP */ 151 152# include <signal.h> 153# if !defined(hp9000s500) && !(defined(SIGRTMAX) || defined(SIGRTMIN)) 154/* 155 * hpux < 7 156 */ 157# include <sys/bsdtty.h> 158# endif /* !hp9000s500 && !(SIGRTMAX || SIGRTMIN) */ 159 160# ifndef POSIX 161# ifdef BSDJOBS 162# define getpgrp(a) getpgrp2(a) 163# define setpgrp(a, b) setpgrp2(a, b) 164# endif /* BSDJOBS */ 165# endif /* POSIX */ 166# ifndef TIOCSTI 167# include <sys/strtio.h> 168# endif 169#endif /* hpux */ 170 171/* 172 * ISC does not define CSUSP 173 */ 174#ifdef ISC 175# ifndef CSUSP 176# define CSUSP 032 177# endif /* CSUSP */ 178# if defined(POSIX) && !defined(TIOCGWINSZ) 179/* 180 * ISC defines this only in termio.h. If we are using POSIX and include 181 * termios.h, then we define it ourselves so that window resizing works. 182 */ 183# define TIOCGWINSZ (('T'<<8)|104) 184# endif /* POSIX && !TIOCGWINSZ */ 185#endif /* ISC */ 186 187#ifdef ISC202 188# undef TIOCGWINSZ 189#endif /* ISC202 */ 190 191/* 192 * XXX: This will be changed soon to 193 * #if (SYSVREL > 0) && defined(TIOCGWINSZ) 194 * If that breaks on your machine, let me know. 195 * 196 * It would break on linux, where all this is 197 * defined in <termios.h>. Wrapper added. 198 */ 199#if !defined(linux) && !defined(_VMS_POSIX) 200# if defined(INTEL) || defined(u3b2) || defined (u3b5) || defined(ub15) || defined(u3b20d) || defined(ISC) || defined(SCO) || defined(tower32) 201# ifdef TIOCGWINSZ 202/* 203 * for struct winsiz 204 */ 205# include <sys/stream.h> 206# include <sys/ptem.h> 207# endif /* TIOCGWINSZ */ 208# ifndef ODT 209# define NEEDgethostname 210# endif /* ODT */ 211# endif /* INTEL || u3b2 || u3b5 || ub15 || u3b20d || ISC || SCO || tower32 */ 212#endif /* !linux && !_VMS_POSIX */ 213 214#if defined(UNIXPC) || defined(COHERENT) 215# define NEEDgethostname 216#endif /* UNIXPC || COHERENT */ 217 218#ifdef IRIS4D 219# include <sys/time.h> 220# include <sys/resource.h> 221# ifndef POSIX 222/* 223 * BSDsetpgrp() and BSDgetpgrp() are BSD versions of setpgrp, etc. 224 */ 225# define setpgrp BSDsetpgrp 226# define getpgrp BSDgetpgrp 227# endif /* POSIX */ 228#endif /* IRIS4D */ 229 230/* 231 * For some versions of system V software, specially ones that use the 232 * Wollongong Software TCP/IP, the FIOCLEX, FIONCLEX, FIONBIO calls 233 * might not work correctly for file descriptors [they work only for 234 * sockets]. So we try to use first the fcntl() and we only use the 235 * ioctl() form, only if we don't have the fcntl() one. 236 * 237 * From: scott@craycos.com (Scott Bolte) 238 */ 239#ifndef WINNT_NATIVE 240# ifdef F_SETFD 241# define close_on_exec(fd, v) fcntl((fd), F_SETFD, v) 242# else /* !F_SETFD */ 243# ifdef FIOCLEX 244# define close_on_exec(fd, v) ioctl((fd), ((v) ? FIOCLEX : FIONCLEX), NULL) 245# else /* !FIOCLEX */ 246# define close_on_exec(fd, v) /* Nothing */ 247# endif /* FIOCLEX */ 248# endif /* F_SETFD */ 249#else /* WINNT_NATIVE */ 250# define close_on_exec(fd, v) nt_close_on_exec((fd),(v)) 251#endif /* !WINNT_NATIVE */ 252 253/* 254 * Stat 255 */ 256#ifdef ISC 257/* these are not defined for _POSIX_SOURCE under ISC 2.2 */ 258# ifndef S_IFMT 259# define S_IFMT 0170000 /* type of file */ 260# define S_IFDIR 0040000 /* directory */ 261# define S_IFCHR 0020000 /* character special */ 262# define S_IFBLK 0060000 /* block special */ 263# define S_IFREG 0100000 /* regular */ 264# define S_IFIFO 0010000 /* fifo */ 265# define S_IFNAM 0050000 /* special named file */ 266# ifndef ISC202 267# define S_IFLNK 0120000 /* symbolic link */ 268# endif /* ISC202 */ 269# endif /* S_IFMT */ 270#endif /* ISC */ 271 272#if defined(uts) || defined(UTekV) || defined(sysV88) 273/* 274 * The uts 2.1.2 macros (Amdahl) are busted! 275 * You should fix <sys/stat.h>, cause other programs will break too! 276 * 277 * From: creiman@ncsa.uiuc.edu (Charlie Reiman) 278 */ 279 280/* 281 * The same applies to Motorola MPC (System V/88 R32V2, UTekV 3.2e) 282 * workstations, the stat macros are broken. 283 * Kaveh Ghazi (ghazi@caip.rutgers.edu) 284 */ 285# undef S_ISDIR 286# undef S_ISCHR 287# undef S_ISBLK 288# undef S_ISREG 289# undef S_ISFIFO 290# undef S_ISNAM 291# undef S_ISLNK 292# undef S_ISSOCK 293#endif /* uts || UTekV || sysV88 */ 294 295#ifdef S_IFMT 296# if !defined(S_ISDIR) && defined(S_IFDIR) 297# define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR) 298# endif /* ! S_ISDIR && S_IFDIR */ 299# if !defined(S_ISCHR) && defined(S_IFCHR) 300# define S_ISCHR(a) (((a) & S_IFMT) == S_IFCHR) 301# endif /* ! S_ISCHR && S_IFCHR */ 302# if !defined(S_ISBLK) && defined(S_IFBLK) 303# define S_ISBLK(a) (((a) & S_IFMT) == S_IFBLK) 304# endif /* ! S_ISBLK && S_IFBLK */ 305# if !defined(S_ISREG) && defined(S_IFREG) 306# define S_ISREG(a) (((a) & S_IFMT) == S_IFREG) 307# endif /* ! S_ISREG && S_IFREG */ 308# if !defined(S_ISFIFO) && defined(S_IFIFO) 309# define S_ISFIFO(a) (((a) & S_IFMT) == S_IFIFO) 310# endif /* ! S_ISFIFO && S_IFIFO */ 311# if !defined(S_ISNAM) && defined(S_IFNAM) 312# define S_ISNAM(a) (((a) & S_IFMT) == S_IFNAM) 313# endif /* ! S_ISNAM && S_IFNAM */ 314# if !defined(S_ISLNK) && defined(S_IFLNK) 315# define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK) 316# endif /* ! S_ISLNK && S_IFLNK */ 317# if !defined(S_ISSOCK) && defined(S_IFSOCK) 318# define S_ISSOCK(a) (((a) & S_IFMT) == S_IFSOCK) 319# endif /* ! S_ISSOCK && S_IFSOCK */ 320#endif /* S_IFMT */ 321 322#ifdef tower32 323/* The header files lie; we really don't have symlinks */ 324# undef S_ISLNK 325# undef S_IFLNK 326#endif /* tower32 */ 327 328#ifndef S_IREAD 329# define S_IREAD 0000400 330#endif /* S_IREAD */ 331#ifndef S_IROTH 332# define S_IROTH (S_IREAD >> 6) 333#endif /* S_IROTH */ 334#ifndef S_IRGRP 335# define S_IRGRP (S_IREAD >> 3) 336#endif /* S_IRGRP */ 337#ifndef S_IRUSR 338# define S_IRUSR S_IREAD 339#endif /* S_IRUSR */ 340 341#ifndef S_IWRITE 342# define S_IWRITE 0000200 343#endif /* S_IWRITE */ 344#ifndef S_IWOTH 345# define S_IWOTH (S_IWRITE >> 6) 346#endif /* S_IWOTH */ 347#ifndef S_IWGRP 348# define S_IWGRP (S_IWRITE >> 3) 349#endif /* S_IWGRP */ 350#ifndef S_IWUSR 351# define S_IWUSR S_IWRITE 352#endif /* S_IWUSR */ 353 354#ifndef S_IEXEC 355# define S_IEXEC 0000100 356#endif /* S_IEXEC */ 357#ifndef S_IXOTH 358# define S_IXOTH (S_IEXEC >> 6) 359#endif /* S_IXOTH */ 360#ifndef S_IXGRP 361# define S_IXGRP (S_IEXEC >> 3) 362#endif /* S_IXGRP */ 363#ifndef S_IXUSR 364# define S_IXUSR S_IEXEC 365#endif /* S_IXUSR */ 366 367#ifndef S_ISUID 368# define S_ISUID 0004000 /* setuid */ 369#endif /* S_ISUID */ 370#ifndef S_ISGID 371# define S_ISGID 0002000 /* setgid */ 372#endif /* S_ISGID */ 373#ifndef S_ISVTX 374# define S_ISVTX 0001000 /* sticky */ 375#endif /* S_ISVTX */ 376#ifndef S_ENFMT 377# define S_ENFMT S_ISGID /* record locking enforcement flag */ 378#endif /* S_ENFMT */ 379 380/* the following macros are for POSIX conformance */ 381#ifndef S_IRWXU 382# define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR) 383#endif /* S_IRWXU */ 384#ifndef S_IRWXG 385# define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP) 386#endif /* S_IRWXG */ 387#ifndef S_IRWXO 388# define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH) 389#endif /* S_IRWXO */ 390 391/* 392 * Access() 393 */ 394#ifndef F_OK 395# define F_OK 0 396#endif /* F_OK */ 397#ifndef X_OK 398# define X_OK 1 399#endif /* X_OK */ 400#ifndef W_OK 401# define W_OK 2 402#endif /* W_OK */ 403#ifndef R_OK 404# define R_OK 4 405#endif /* R_OK */ 406 407/* 408 * Open() 409 */ 410#ifndef O_RDONLY 411# define O_RDONLY 0 412#endif /* O_RDONLY */ 413#ifndef O_WRONLY 414# define O_WRONLY 1 415#endif /* O_WRONLY */ 416#ifndef O_RDWR 417# define O_RDWR 2 418#endif /* O_RDWR */ 419 420/* 421 * Lseek() 422 */ 423#ifndef L_SET 424# ifdef SEEK_SET 425# define L_SET SEEK_SET 426# else /* !SEEK_SET */ 427# define L_SET 0 428# endif /* SEEK_SET */ 429#endif /* L_SET */ 430#ifndef L_INCR 431# ifdef SEEK_CUR 432# define L_INCR SEEK_CUR 433# else /* !SEEK_CUR */ 434# define L_INCR 1 435# endif /* SEEK_CUR */ 436#endif /* L_INCR */ 437#ifndef L_XTND 438# ifdef SEEK_END 439# define L_XTND SEEK_END 440# else /* !SEEK_END */ 441# define L_XTND 2 442# endif /* SEEK_END */ 443#endif /* L_XTND */ 444 445#ifdef _SEQUENT_ 446# define NEEDgethostname 447#endif /* _SEQUENT_ */ 448 449#if defined(BSD) && defined(POSIXJOBS) && !defined(BSD4_4) && !defined(__hp_osf) 450# define setpgid(pid, pgrp) setpgrp(pid, pgrp) 451#endif /* BSD && POSIXJOBS && && !BSD4_4 && !__hp_osf */ 452 453#if defined(BSDJOBS) && !(defined(POSIX) && defined(POSIXJOBS)) 454# if !defined(_AIX370) && !defined(_AIXPS2) 455# define setpgid(pid, pgrp) setpgrp(pid, pgrp) 456# endif /* !_AIX370 && !_AIXPS2 */ 457# define NEEDtcgetpgrp 458#endif /* BSDJOBS && !(POSIX && POSIXJOBS) */ 459 460#ifdef RENO 461/* 462 * RENO has this broken. It is fixed on 4.4BSD 463 */ 464# define NEEDtcgetpgrp 465#endif /* RENO */ 466 467#ifdef DGUX 468# define setpgrp(a, b) setpgrp2(a, b) 469# define getpgrp(a) getpgrp2(a) 470#endif /* DGUX */ 471 472#ifdef SXA 473# ifndef _BSDX_ 474/* 475 * Only needed in the system V environment. 476 */ 477# define setrlimit bsd_setrlimit 478# define getrlimit bsd_getrlimit 479# endif /* _BSDX_ */ 480#endif /* SXA */ 481 482#if defined(_MINIX) || defined(__EMX__) 483# define NEEDgethostname 484# define NEEDnice 485# define HAVENOLIMIT 486/* 487 * Minix does not have these, so... 488 */ 489# define getpgrp getpid 490#endif /* _MINIX || __EMX__ */ 491 492#ifdef __EMX__ 493/* XXX: How can we get the tty name in emx? */ 494# define ttyname(fd) (isatty(fd) ? "/dev/tty" : NULL) 495#endif /* __EMX__ */ 496 497#ifndef POSIX 498# define mygetpgrp() getpgrp(0) 499#else /* POSIX */ 500# if (defined(BSD) && !defined(BSD4_4)) || defined(SUNOS4) || defined(IRIS4D) || defined(DGUX) || defined(HPRT) 501# define mygetpgrp() getpgrp(0) 502# else /* !((BSD && !BSD4_4) || SUNOS4 || IRIS4D || DGUX || HPRT) */ 503# define mygetpgrp() getpgrp() 504# endif /* (BSD && BSD4_4) || SUNOS4 || IRISD || DGUX || HPRT */ 505#endif /* POSIX */ 506 507 508#if !defined(SOLARIS2) && !defined(sinix) && !defined(BSD4_4) && !defined(WINNT_NATIVE) 509# if (SYSVREL > 0 && !defined(OREO) && !defined(sgi) && !defined(linux) && !defined(sinix) && !defined(_AIX) &&!defined(_UWIN)) || defined(NeXT) 510# define NEEDgetcwd 511# endif /* (SYSVREL > 0 && !OREO && !sgi && !linux && !sinix && !_AIX && !_UWIN) || NeXT */ 512#endif 513 514#ifndef S_IFLNK 515# define lstat stat 516#endif /* S_IFLNK */ 517 518 519#if defined(BSDTIMES) && !defined(_SEQUENT_) 520typedef struct timeval timeval_t; 521#endif /* BSDTIMES && ! _SEQUENT_ */ 522 523#ifdef NeXT 524/* 525 * From Tony_Mason@transarc.com, override NeXT's malloc stuff. 526 */ 527# define malloc tcsh_malloc 528# define calloc tcsh_calloc 529# define realloc tcsh_realloc 530# define free tcsh_free 531#endif /* NeXT */ 532 533#if !defined(BSD4_4) && !defined(__linux__) && !defined(__hpux) && \ 534 !defined(sgi) && !defined(_AIX) && !defined(__CYGWIN__) 535#ifndef NEEDgethostname 536extern int gethostname __P((char *, int)); 537#endif /* NEEDgethostname */ 538#endif /* !BDS4_4 && !__linux__ && !__hpux && !sgi */ 539 540#if !defined(POSIX) || defined(SUNOS4) || defined(UTekV) || defined(sysV88) 541extern time_t time(); 542extern char *getenv(); 543extern int atoi(); 544# ifndef __EMX__ 545extern char *ttyname(); 546# endif /* __EMX__ */ 547 548# if defined(SUNOS4) 549# ifndef toupper 550extern int toupper __P((int)); 551# endif /* toupper */ 552# ifndef tolower 553extern int tolower __P((int)); 554# endif /* tolower */ 555extern caddr_t sbrk __P((int)); 556# if SYSVREL == 0 && !defined(__lucid) 557extern int qsort(); 558# endif /* SYSVREL == 0 && !__lucid */ 559# else /* !SUNOS4 */ 560# ifndef WINNT_NATIVE 561# ifndef hpux 562# if __GNUC__ != 2 563extern int abort(); 564# endif /* __GNUC__ != 2 */ 565# ifndef fps500 566extern int qsort(); 567# endif /* !fps500 */ 568# else /* !hpux */ 569extern void abort(); 570extern void qsort(); 571# endif /* hpux */ 572# endif /* !WINNT_NATIVE */ 573# endif /* SUNOS4 */ 574#ifndef _CX_UX 575extern void perror(); 576#endif 577 578# ifdef BSDSIGS 579# if defined(_AIX370) || defined(MACH) || defined(NeXT) || defined(_AIXPS2) || defined(ardent) || defined(SUNOS4) || defined(HPBSD) || defined(__MACHTEN__) 580extern int sigvec(); 581extern int sigpause(); 582# else /* !(_AIX370 || MACH || NeXT || _AIXPS2 || ardent || SUNOS4 || HPBSD) */ 583# if (!defined(apollo) || !defined(__STDC__)) && !defined(__DGUX__) && !defined(fps500) 584extern sigret_t sigvec(); 585#ifndef _CX_UX 586extern void sigpause(); 587#endif /* _CX_UX */ 588# endif /* (!apollo || !__STDC__) && !__DGUX__ && !fps500 */ 589# endif /* _AIX370 || MACH || NeXT || _AIXPS2 || ardent || SUNOS4 || HPBSD */ 590extern sigmask_t sigblock(); 591extern sigmask_t sigsetmask(); 592# endif /* BSDSIGS */ 593 594# ifndef killpg 595extern int killpg(); 596# endif /* killpg */ 597 598# ifndef lstat 599extern int lstat(); 600# endif /* lstat */ 601 602# ifdef BSD 603extern uid_t getuid(), geteuid(); 604extern gid_t getgid(), getegid(); 605# endif /* BSD */ 606 607# ifdef SYSMALLOC 608extern memalign_t malloc(); 609extern memalign_t realloc(); 610extern memalign_t calloc(); 611extern void free(); 612# endif /* SYSMALLOC */ 613 614# ifdef BSDTIMES 615extern int getrlimit(); 616extern int setrlimit(); 617extern int getrusage(); 618extern int gettimeofday(); 619# endif /* BSDTIMES */ 620 621# if defined(NLS) && !defined(NOSTRCOLL) && !defined(NeXT) 622extern int strcoll(); 623# endif /* NLS && !NOSTRCOLL && !NeXT */ 624 625# ifdef BSDJOBS 626# ifdef BSDTIMES 627# ifdef __MACHTEN__ 628extern pid_t wait3(); 629# else 630# ifndef HPBSD 631extern int wait3(); 632# endif /* HPBSD */ 633# endif /* __MACHTEN__ */ 634# else /* !BSDTIMES */ 635# if !defined(POSIXJOBS) && !defined(_SEQUENT_) 636extern int wait3(); 637# else /* POSIXJOBS || _SEQUENT_ */ 638extern int waitpid(); 639# endif /* POSIXJOBS || _SEQUENT_ */ 640# endif /* BSDTIMES */ 641# else /* !BSDJOBS */ 642# if SYSVREL < 3 643extern int ourwait(); 644# else /* SYSVREL >= 3 */ 645extern int wait(); 646# endif /* SYSVREL < 3 */ 647# endif /* BSDJOBS */ 648 649# ifdef BSDNICE 650extern int setpriority(); 651# else /* !BSDNICE */ 652extern int nice(); 653# endif /* BSDNICE */ 654 655# if (!defined(fps500) && !defined(apollo) && !defined(__lucid) && !defined(HPBSD) && !defined(DECOSF1)) 656extern void setpwent(); 657extern void endpwent(); 658# endif /* !fps500 && !apollo && !__lucid && !HPBSD && !DECOSF1 */ 659 660# ifndef __STDC__ 661extern struct passwd *getpwuid(), *getpwnam(), *getpwent(); 662# ifdef PW_SHADOW 663extern struct spwd *getspnam(), *getspent(); 664# endif /* PW_SHADOW */ 665# ifdef PW_AUTH 666extern struct authorization *getauthuid(); 667# endif /* PW_AUTH */ 668# endif /* __STDC__ */ 669 670# ifndef getcwd 671extern char *getcwd(); 672# endif /* getcwd */ 673 674#else /* POSIX || !SUNOS4 || !UTekV || !sysV88 */ 675 676# if (defined(SUNOS4) && !defined(__GNUC__)) || defined(_IBMR2) || defined(_IBMESA) 677extern char *getvwd(); 678# endif /* (SUNOS4 && ! __GNUC__) || _IBMR2 || _IBMESA */ 679 680# ifdef SCO 681extern char *ttyname(); 682# endif /* SCO */ 683 684# ifdef __clipper__ 685extern char *ttyname(); 686# endif /* __clipper__ */ 687 688#endif /* !POSIX || SUNOS4 || UTekV || sysV88 */ 689 690#if defined(SUNOS4) && __GNUC__ == 2 691/* 692 * Somehow these are missing 693 */ 694extern int ioctl __P((int, int, ...)); 695extern int readlink __P((const char *, char *, size_t)); 696extern void setgrent __P((void)); 697extern void endgrent __P((void)); 698# ifdef REMOTEHOST 699# ifndef _SOCKLEN_T /* Avoid Solaris 2.7 bogosity. */ 700struct sockaddr; 701extern int getpeername __P((int, struct sockaddr *, int *)); 702# endif /* _SOCKLEN_T */ 703# endif /* REMOTEHOST */ 704#endif /* SUNOS4 && __GNUC__ == 2 */ 705 706#if (defined(BSD) && !defined(BSD4_4)) || defined(SUNOS4) 707# if defined(__alpha) && defined(__osf__) && DECOSF1 < 200 708extern void bcopy __P((const void *, void *, size_t)); 709# define memmove(a, b, c) (bcopy((char *) (b), (char *) (a), (int) (c)), a) 710# endif /* __alpha && __osf__ && DECOSF1 < 200 */ 711#endif /* (BSD && !BSD4_4) || SUNOS4 */ 712 713#if !defined(hpux) && !defined(COHERENT) && ((SYSVREL < 4) || defined(_SEQUENT_)) && !defined(BSD4_4) && !defined(memmove) 714# define NEEDmemmove 715#endif /* !hpux && !COHERENT && (SYSVREL < 4 || _SEQUENT_) && !BSD4_4 && !memmove */ 716 717#if defined(UTek) || defined(pyr) 718# define NEEDmemset 719#else /* !UTek && !pyr */ 720# ifdef SUNOS4 721# include <memory.h> /* memset should be declared in <string.h> but isn't */ 722# endif /* SUNOS4 */ 723#endif /* UTek || pyr */ 724 725#if SYSVREL == 4 726# ifdef REMOTEHOST 727/* Irix6 defines getpeername(int, void *, int *) which conflicts with 728 the definition below. */ 729# if !defined(__sgi) && !defined(_OSD_POSIX) && !defined(__MVS__) 730# ifndef _SOCKLEN_T /* Avoid Solaris 2.7 bogosity. */ 731struct sockaddr; 732extern int getpeername __P((int, struct sockaddr *, int *)); 733# endif /* _SOCKLEN_T */ 734# endif /* !__sgi && !_OSD_POSIX && !__MVS__ */ 735# endif /* REMOTEHOST */ 736# ifndef BSDTIMES 737extern int getrlimit __P((int, struct rlimit *)); 738extern int setrlimit __P((int, const struct rlimit *)); 739# endif /* !BSDTIMES */ 740# if !defined(IRIS4D) && !defined(SOLARIS2) 741extern int wait3(); /* I think some bizarre systems still need this */ 742# endif /* !IRIS4D && !SOLARIS2 */ 743# if defined(SOLARIS2) 744# undef NEEDstrerror 745extern char *strerror __P((int)); 746# endif /* SOLARIS2 */ 747#endif /* SYSVREL == 4 */ 748 749#if defined(__alpha) && defined(__osf__) && DECOSF1 < 200 750/* These are ok for 1.3, but conflict with the header files for 2.0 */ 751extern int gethostname __P((char *, int)); 752extern char *sbrk __P((ssize_t)); 753extern int ioctl __P((int, unsigned long, char *)); 754extern pid_t vfork __P((void)); 755extern int killpg __P((pid_t, int)); 756#endif /* __osf__ && __alpha && DECOSF1 < 200 */ 757 758#endif /* _h_tc_os */ 759