1 /* $Header: /p/tcsh/cvsroot/tcsh/tc.os.h,v 3.102 2007/07/05 14:13:06 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 */ 364 365 /* 366 * Lseek() 367 */ 368 #ifndef L_SET 369 # ifdef SEEK_SET 370 # define L_SET SEEK_SET 371 # else /* !SEEK_SET */ 372 # define L_SET 0 373 # endif /* SEEK_SET */ 374 #endif /* L_SET */ 375 #ifndef L_INCR 376 # ifdef SEEK_CUR 377 # define L_INCR SEEK_CUR 378 # else /* !SEEK_CUR */ 379 # define L_INCR 1 380 # endif /* SEEK_CUR */ 381 #endif /* L_INCR */ 382 #ifndef L_XTND 383 # ifdef SEEK_END 384 # define L_XTND SEEK_END 385 # else /* !SEEK_END */ 386 # define L_XTND 2 387 # endif /* SEEK_END */ 388 #endif /* L_XTND */ 389 390 #if !defined (HAVE_SETPGID) && !defined (SETPGRP_VOID) 391 # define setpgid(pid, pgrp) setpgrp(pid, pgrp) 392 #endif 393 394 #if defined(BSDJOBS) && !(defined(POSIX) && defined(POSIXJOBS)) 395 # define NEEDtcgetpgrp 396 #endif /* BSDJOBS && !(POSIX && POSIXJOBS) */ 397 398 #ifdef RENO 399 /* 400 * RENO has this broken. It is fixed on 4.4BSD 401 */ 402 # define NEEDtcgetpgrp 403 #endif /* RENO */ 404 405 #ifdef SXA 406 # ifndef _BSDX_ 407 /* 408 * Only needed in the system V environment. 409 */ 410 # define setrlimit bsd_setrlimit 411 # define getrlimit bsd_getrlimit 412 # endif /* _BSDX_ */ 413 #endif /* SXA */ 414 415 #if defined(_MINIX) || defined(__EMX__) 416 # define HAVENOLIMIT 417 /* 418 * Minix does not have these, so... 419 */ 420 # define getpgrp getpid 421 #endif /* _MINIX || __EMX__ */ 422 423 #ifdef __EMX__ 424 /* XXX: How can we get the tty name in emx? */ 425 # define ttyname(fd) (isatty(fd) ? "/dev/tty" : NULL) 426 #endif /* __EMX__ */ 427 428 #ifndef S_IFLNK 429 # define lstat stat 430 #endif /* S_IFLNK */ 431 432 433 #if defined(BSDTIMES) && !defined(_SEQUENT_) 434 typedef struct timeval timeval_t; 435 #endif /* BSDTIMES && ! _SEQUENT_ */ 436 437 #ifdef NeXT 438 /* 439 * From Tony_Mason@transarc.com, override NeXT's malloc stuff. 440 */ 441 # define malloc tcsh_malloc 442 # define calloc tcsh_calloc 443 # define realloc tcsh_realloc 444 # define free tcsh_free 445 #endif /* NeXT */ 446 447 #if defined(HAVE_GETHOSTNAME) && !HAVE_DECL_GETHOSTNAME 448 extern int gethostname (char *, int); 449 #endif 450 451 #ifndef GETPGRP_VOID 452 # define mygetpgrp() getpgrp(0) 453 #else 454 # define mygetpgrp() getpgrp() 455 #endif 456 457 #if !defined(POSIX) || defined(SUNOS4) || defined(UTekV) || defined(sysV88) 458 extern time_t time(); 459 extern char *getenv(); 460 extern int atoi(); 461 # ifndef __EMX__ 462 extern char *ttyname(); 463 # endif /* __EMX__ */ 464 465 466 # if defined(SUNOS4) 467 # ifndef toupper 468 extern int toupper (int); 469 # endif /* toupper */ 470 # ifndef tolower 471 extern int tolower (int); 472 # endif /* tolower */ 473 extern caddr_t sbrk (int); 474 # else /* !SUNOS4 */ 475 # ifndef WINNT_NATIVE 476 # ifdef hpux 477 extern void abort(); 478 extern void qsort(); 479 # endif /* hpux */ 480 # endif /* !WINNT_NATIVE */ 481 # endif /* SUNOS4 */ 482 #ifndef _CX_UX 483 extern void perror(); 484 #endif 485 486 # ifdef BSD 487 extern uid_t getuid(), geteuid(); 488 extern gid_t getgid(), getegid(); 489 # endif /* BSD */ 490 491 # ifdef SYSMALLOC 492 extern memalign_t malloc(); 493 extern memalign_t realloc(); 494 extern memalign_t calloc(); 495 extern void free(); 496 # endif /* SYSMALLOC */ 497 498 # ifdef BSDJOBS 499 # ifdef BSDTIMES 500 # ifdef __MACHTEN__ 501 extern pid_t wait3(); 502 # endif /* __MACHTEN__ */ 503 # endif /* BSDTIMES */ 504 # endif /* BSDJOBS */ 505 506 # if (!defined(fps500) && !defined(apollo) && !defined(__lucid) && !defined(HPBSD) && !defined(DECOSF1)) 507 extern void setpwent(); 508 extern void endpwent(); 509 # endif /* !fps500 && !apollo && !__lucid && !HPBSD && !DECOSF1 */ 510 511 # ifndef __STDC__ 512 extern struct passwd *getpwuid(), *getpwnam(), *getpwent(); 513 # ifdef HAVE_SHADOW_H 514 extern struct spwd *getspnam(), *getspent(); 515 # endif /* HAVE_SHADOW_H */ 516 # if defined(HAVE_AUTH_H) && defined(HAVE_GETAUTHUID) 517 extern struct authorization *getauthuid(); 518 # endif /* HAVE_AUTH_H && HAVE_GETAUTHUID */ 519 # endif /* __STDC__ */ 520 521 # ifndef getcwd 522 extern char *getcwd(); 523 # endif /* getcwd */ 524 525 #else /* POSIX || !SUNOS4 || !UTekV || !sysV88 */ 526 527 # if (defined(SUNOS4) && !defined(__GNUC__)) || defined(_IBMR2) || defined(_IBMESA) 528 extern char *getvwd(); 529 # endif /* (SUNOS4 && ! __GNUC__) || _IBMR2 || _IBMESA */ 530 531 # ifdef SCO 532 extern char *ttyname(); 533 # endif /* SCO */ 534 535 # ifdef __clipper__ 536 extern char *ttyname(); 537 # endif /* __clipper__ */ 538 539 #endif /* !POSIX || SUNOS4 || UTekV || sysV88 */ 540 541 #if defined(SUNOS4) && __GNUC__ == 2 542 /* 543 * Somehow these are missing 544 */ 545 extern int ioctl (int, int, ...); 546 extern int readlink (const char *, char *, size_t); 547 extern void setgrent (void); 548 extern void endgrent (void); 549 # ifdef REMOTEHOST 550 # ifndef _SOCKLEN_T /* Avoid Solaris 2.7 bogosity. */ 551 struct sockaddr; 552 extern int getpeername (int, struct sockaddr *, int *); 553 # endif /* _SOCKLEN_T */ 554 # endif /* REMOTEHOST */ 555 #endif /* SUNOS4 && __GNUC__ == 2 */ 556 557 #if (defined(BSD) && !defined(BSD4_4)) || defined(SUNOS4) 558 # if defined(__alpha) && defined(__osf__) && DECOSF1 < 200 559 extern void bcopy (const void *, void *, size_t); 560 # define memmove(a, b, c) (bcopy((char *) (b), (char *) (a), (int) (c)), a) 561 # endif /* __alpha && __osf__ && DECOSF1 < 200 */ 562 #endif /* (BSD && !BSD4_4) || SUNOS4 */ 563 564 #ifdef SUNOS4 565 # include <memory.h> /* memset should be declared in <string.h> but isn't */ 566 #endif /* SUNOS4 */ 567 568 #if SYSVREL == 4 569 # ifdef REMOTEHOST 570 /* Irix6 defines getpeername(int, void *, int *) which conflicts with 571 the definition below. */ 572 # if !defined(__sgi) && !defined(_OSD_POSIX) && !defined(__MVS__) 573 # ifndef _SOCKLEN_T /* Avoid Solaris 2.7 bogosity. */ 574 struct sockaddr; 575 extern int getpeername (int, struct sockaddr *, int *); 576 # endif /* _SOCKLEN_T */ 577 # endif /* !__sgi && !_OSD_POSIX && !__MVS__ */ 578 # endif /* REMOTEHOST */ 579 # ifndef BSDTIMES 580 extern int getrlimit (int, struct rlimit *); 581 extern int setrlimit (int, const struct rlimit *); 582 # endif /* !BSDTIMES */ 583 # if defined(SOLARIS2) 584 extern char *strerror (int); 585 # endif /* SOLARIS2 */ 586 #endif /* SYSVREL == 4 */ 587 588 #if defined(__alpha) && defined(__osf__) && DECOSF1 < 200 589 /* These are ok for 1.3, but conflict with the header files for 2.0 */ 590 extern char *sbrk (ssize_t); 591 extern int ioctl (int, unsigned long, char *); 592 extern pid_t vfork (void); 593 extern int killpg (pid_t, int); 594 #endif /* __osf__ && __alpha && DECOSF1 < 200 */ 595 596 #ifndef va_copy 597 # ifdef __va_copy 598 # define va_copy(DEST, SRC) __va_copy(DEST, SRC) 599 # else 600 # define va_copy(DEST, SRC) memcpy(&(DEST), &(SRC), sizeof(va_list)) 601 # endif 602 #endif 603 604 #endif /* _h_tc_os */ 605