1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.h,v 3.150 2009/06/25 21:27:37 christos Exp $ */ 2 /* 3 * sh.h: Catch it all globals and includes file! 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_sh 34 #define _h_sh 35 36 #include "config.h" 37 38 #include <stddef.h> 39 #include <signal.h> 40 41 #ifdef HAVE_ICONV 42 # include <iconv.h> 43 #endif 44 45 #ifdef HAVE_STDINT_H 46 # include <stdint.h> 47 #endif 48 49 #ifdef HAVE_INTTYPES_H 50 # include <inttypes.h> 51 #endif 52 53 #if !defined(HAVE_STDINT_H) && !defined(HAVE_INTTYPES_H) && !defined(WINNT_NATIVE) 54 typedef unsigned long intptr_t; 55 #endif 56 57 #ifndef EXTERN 58 # define EXTERN extern 59 #else /* !EXTERN */ 60 # ifdef WINNT_NATIVE 61 # define IZERO = 0 62 # define IZERO_STRUCT = {0} 63 # endif /* WINNT_NATIVE */ 64 #endif /* EXTERN */ 65 66 #ifndef IZERO 67 # define IZERO 68 #endif /* IZERO */ 69 #ifndef IZERO_STRUCT 70 # define IZERO_STRUCT 71 #endif /* IZERO_STRUCT */ 72 73 #ifndef WINNT_NATIVE 74 # define INIT_ZERO 75 # define INIT_ZERO_STRUCT 76 # define force_read xread 77 #endif /*!WINNT_NATIVE */ 78 /* 79 * Sanity 80 */ 81 #if defined(_POSIX_SOURCE) && !defined(POSIX) 82 # define POSIX 83 #endif 84 85 #if defined(POSIXJOBS) && !defined(BSDJOBS) 86 # define BSDJOBS 87 #endif 88 89 #ifdef SHORT_STRINGS 90 # ifdef WIDE_STRINGS 91 #include <wchar.h> 92 typedef wchar_t Char; 93 typedef unsigned long uChar; 94 typedef wint_t eChar; /* Can contain any Char value or CHAR_ERR */ 95 #define CHAR_ERR WEOF /* Pretty please, use bit 31... */ 96 #define normal_mbtowc(PWC, S, N) rt_mbtowc(PWC, S, N) 97 #define reset_mbtowc() IGNORE(mbtowc(NULL, NULL, 0)) 98 # else 99 typedef short Char; 100 typedef unsigned short uChar; 101 typedef int eChar; 102 #define CHAR_ERR (-1) 103 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 104 #define reset_mbtowc() ((void)0) 105 # endif 106 # define SAVE(a) (Strsave(str2short(a))) 107 #else 108 typedef char Char; 109 typedef unsigned char uChar; 110 typedef int eChar; 111 #define CHAR_ERR (-1) 112 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 113 #define reset_mbtowc() ((void)0) 114 # define SAVE(a) (strsave(a)) 115 #endif 116 117 /* Elide unused argument warnings */ 118 #define USE(a) (void) (a) 119 #define IGNORE(a) ignore((intptr_t)a) 120 static inline void ignore(intptr_t a) 121 { 122 USE(a); 123 } 124 125 /* 126 * Return true if the path is absolute 127 */ 128 #if defined(WINNT_NATIVE) 129 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 130 (Isalpha((p)[0]) && (p)[1] == ':')) 131 #elif defined(__CYGWIN__) 132 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 133 (Isalpha((p)[0]) && (p)[1] == ':' && \ 134 ((p)[2] == '\0' || (p)[2] == '/'))) 135 #else /* !WINNT_NATIVE && !__CYGWIN__ */ 136 # define ABSOLUTEP(p) (*(p) == '/') 137 #endif /* WINNT_NATIVE || __CYGWIN__ */ 138 139 /* 140 * Fundamental definitions which may vary from system to system. 141 * 142 * BUFSIZE The i/o buffering size; also limits word size 143 * MAILINTVL How often to mailcheck; more often is more expensive 144 */ 145 #ifdef BUFSIZE 146 # if BUFSIZE < 4096 147 # undef BUFSIZE 148 # define BUFSIZE 4096 /* buffer size should be no less than this */ 149 # endif 150 #else 151 # define BUFSIZE 4096 152 #endif /* BUFSIZE */ 153 154 #define FORKSLEEP 10 /* delay loop on non-interactive fork failure */ 155 #define MAILINTVL 600 /* 10 minutes */ 156 157 #ifndef INBUFSIZE 158 # define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */ 159 #endif /* INBUFSIZE */ 160 161 162 /* 163 * What our builtin echo looks like 164 */ 165 #define NONE_ECHO 0 166 #define BSD_ECHO 1 167 #define SYSV_ECHO 2 168 #define BOTH_ECHO (BSD_ECHO|SYSV_ECHO) 169 170 #ifndef ECHO_STYLE 171 # if SYSVREL > 0 172 # define ECHO_STYLE SYSV_ECHO 173 # else /* SYSVREL == 0 */ 174 # define ECHO_STYLE BSD_ECHO 175 # endif /* SYSVREL */ 176 #endif /* ECHO_STYLE */ 177 178 /* 179 * The shell moves std in/out/diag and the old std input away from units 180 * 0, 1, and 2 so that it is easy to set up these standards for invoked 181 * commands. 182 */ 183 #define FSAFE 5 /* We keep the first 5 descriptors untouched */ 184 #define FSHTTY 15 /* /dev/tty when manip pgrps */ 185 #define FSHIN 16 /* Preferred desc for shell input */ 186 #define FSHOUT 17 /* ... shell output */ 187 #define FSHDIAG 18 /* ... shell diagnostics */ 188 #define FOLDSTD 19 /* ... old std input */ 189 190 #ifdef PROF 191 #define xexit(n) done(n) 192 #endif 193 194 #ifdef cray 195 # define word word_t /* sys/types.h defines word.. bad move! */ 196 #endif 197 198 #include <sys/types.h> 199 200 #ifdef cray 201 # undef word 202 #endif 203 204 /* 205 * Path separator in environment variables 206 */ 207 #ifndef PATHSEP 208 # if defined(__EMX__) || defined(WINNT_NATIVE) 209 # define PATHSEP ';' 210 # else /* unix */ 211 # define PATHSEP ':' 212 # endif /* __EMX__ || WINNT_NATIVE */ 213 #endif /* !PATHSEP */ 214 215 #if defined(__HP_CXD_SPP) && !defined(__hpux) 216 # include <sys/cnx_stat.h> 217 # define stat stat64 218 # define fstat fstat64 219 # define lstat lstat64 220 #endif /* __HP_CXD_SPP && !__hpux */ 221 222 /* 223 * This macro compares the st_dev field of struct stat. On aix on ibmESA 224 * st_dev is a structure, so comparison does not work. 225 */ 226 #ifndef DEV_DEV_COMPARE 227 # define DEV_DEV_COMPARE(x,y) ((x) == (y)) 228 #endif /* DEV_DEV_COMPARE */ 229 230 #ifdef _SEQUENT_ 231 # include <sys/procstats.h> 232 #endif /* _SEQUENT_ */ 233 #if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE) 234 # include <sys/times.h> 235 #endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */ 236 237 #ifdef NLS 238 # include <locale.h> 239 #endif /* NLS */ 240 241 242 #if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__) 243 # include <sys/param.h> 244 #endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */ 245 #include <sys/stat.h> 246 247 #if defined(BSDTIMES) || defined(BSDLIMIT) 248 # include <sys/time.h> 249 # if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__) 250 # include "/usr/ucbinclude/sys/resource.h" 251 # else 252 # ifdef convex 253 # define sysrusage cvxrusage 254 # include <sys/sysinfo.h> 255 # else 256 # define sysrusage rusage 257 # include <sys/resource.h> 258 # endif /* convex */ 259 # endif /* SYSVREL>3 */ 260 #endif /* BSDTIMES */ 261 262 #ifndef WINNT_NATIVE 263 # ifndef POSIX 264 # ifdef TERMIO 265 # include <termio.h> 266 # else /* SGTTY */ 267 # include <sgtty.h> 268 # endif /* TERMIO */ 269 # else /* POSIX */ 270 # ifndef _UWIN 271 # include <termios.h> 272 # else 273 # include <termio.h> 274 # endif /* _UWIN */ 275 # if SYSVREL > 3 276 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 277 # undef TIOCSLTC 278 # undef CSWTCH 279 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 280 # endif /* SYSVREL > 3 */ 281 # endif /* POSIX */ 282 #endif /* WINNT_NATIVE */ 283 284 #ifdef sonyrisc 285 # include <sys/ttold.h> 286 #endif /* sonyrisc */ 287 288 #if defined(POSIX) && !defined(WINNT_NATIVE) 289 # include <unistd.h> 290 291 /* 292 * the gcc+protoize version of <stdlib.h> 293 * redefines malloc(), so we define the following 294 * to avoid it. 295 */ 296 # if defined(SYSMALLOC) || defined(linux) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX) 297 # define NO_FIX_MALLOC 298 # include <stdlib.h> 299 # else /* glibc */ 300 # define _GNU_STDLIB_H 301 # define malloc __malloc 302 # define free __free 303 # define calloc __calloc 304 # define realloc __realloc 305 # include <stdlib.h> 306 # undef malloc 307 # undef free 308 # undef calloc 309 # undef realloc 310 # endif /* glibc || sgi */ 311 #endif /* POSIX && !WINNT_NATIVE */ 312 #include <limits.h> 313 314 #if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(linux) || defined(__GNU__) || defined(__GLIBC__) 315 # if !defined(pyr) && !defined(stellar) 316 # include <time.h> 317 # ifdef _MINIX 318 # define HZ CLOCKS_PER_SEC 319 # endif /* _MINIX */ 320 # endif /* !pyr && !stellar */ 321 #endif /* SYSVREL > 0 || _IBMR2 */ 322 323 /* In the following ifdef the DECOSF1 has been commented so that later 324 * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions... 325 */ 326 #if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO)) 327 # if !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) 328 # include <sys/ioctl.h> 329 # endif 330 #endif 331 332 #if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX) 333 #undef CSWTCH 334 #define CSWTCH _POSIX_VDISABLE 335 #endif 336 337 #if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__) 338 # include <sys/filio.h> 339 #endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */ 340 341 #if !defined(_MINIX) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D) 342 # include <sys/file.h> 343 #endif /* !_MINIX && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */ 344 345 #if !defined(O_RDONLY) || !defined(O_NDELAY) 346 # include <fcntl.h> 347 #endif 348 #ifndef O_LARGEFILE 349 # define O_LARGEFILE 0 350 #endif 351 352 #include <errno.h> 353 354 #include <setjmp.h> 355 356 #include <stdarg.h> 357 358 #ifdef HAVE_DIRENT_H 359 # include <dirent.h> 360 #else 361 # ifdef HAVE_NDIR_H 362 # include <ndir.h> 363 # else 364 # include <sys/dir.h> 365 # endif 366 # define dirent direct 367 #endif /* HAVE_DIRENT_H */ 368 #ifndef HAVE_STRUCT_DIRENT_D_INO 369 # define d_ino d_fileno 370 #endif 371 #if defined(hpux) || defined(sgi) || defined(OREO) 372 # include <stdio.h> /* So the fgetpwent() prototypes work */ 373 #endif /* hpux || sgi || OREO */ 374 #ifndef WINNT_NATIVE 375 #include <pwd.h> 376 #include <grp.h> 377 #endif /* WINNT_NATIVE */ 378 #ifdef HAVE_SHADOW_H 379 # include <shadow.h> 380 #endif /* HAVE_SHADOW_H */ 381 #ifdef HAVE_AUTH_H 382 # include <auth.h> 383 #endif /* HAVE_AUTH_H */ 384 #if defined(BSD) && !defined(POSIX) 385 # include <strings.h> 386 # define strchr(a, b) index(a, b) 387 # define strrchr(a, b) rindex(a, b) 388 #else 389 # include <string.h> 390 #endif /* BSD */ 391 392 /* 393 * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not 394 * include it yet, so we include it here 395 */ 396 #if defined(sgi) && SYSVREL > 3 397 # include <sys/cdefs.h> 398 #endif /* sgi && SYSVREL > 3 */ 399 400 #ifdef REMOTEHOST 401 # ifdef ISC 402 # undef MAXHOSTNAMELEN /* Busted headers? */ 403 # endif 404 405 # include <netinet/in.h> 406 # include <arpa/inet.h> 407 # include <sys/socket.h> 408 # if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) 409 # if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */ 410 # if !defined(sgi) 411 # if !defined(__CYGWIN__) 412 # define INET6 413 # endif /* __CYGWIN__ */ 414 # endif /* sgi */ 415 # endif /* __APPLE__ */ 416 # endif 417 # include <sys/uio.h> /* For struct iovec */ 418 #endif /* REMOTEHOST */ 419 420 #ifdef PURIFY 421 /* exit normally, allowing purify to trace leaks */ 422 # define _exit exit 423 typedef int pret_t; 424 #else /* !PURIFY */ 425 /* 426 * If your compiler complains, then you can either 427 * throw it away and get gcc or, use the following define 428 * and get rid of the typedef. 429 * [The 4.2/3BSD vax compiler does not like that] 430 * Both MULTIFLOW and PCC compilers exhbit this bug. -- sterling@netcom.com 431 */ 432 # if (defined(vax) || defined(uts) || defined(MULTIFLOW) || defined(PCC)) && !defined(__GNUC__) 433 # define pret_t void 434 # else /* !((vax || uts || MULTIFLOW || PCC) && !__GNUC__) */ 435 typedef void pret_t; 436 # endif /* (vax || uts || MULTIFLOW || PCC) && !__GNUC__ */ 437 #endif /* PURIFY */ 438 439 /* 440 * ASCII vs. EBCDIC 441 */ 442 #if 'Z' - 'A' == 25 443 # ifndef IS_ASCII 444 # define IS_ASCII 445 # endif 446 #endif 447 448 #include "sh.types.h" 449 450 #if !HAVE_DECL_GETPGRP 451 # ifndef GETPGRP_VOID 452 extern pid_t getpgrp (int); 453 # else 454 extern pid_t getpgrp (void); 455 # endif 456 #endif 457 458 #ifndef lint 459 typedef ptr_t memalign_t; 460 #else 461 typedef union { 462 char am_char, *am_char_p; 463 short am_short, *am_short_p; 464 int am_int, *am_int_p; 465 long am_long, *am_long_p; 466 float am_float, *am_float_p; 467 double am_double, *am_double_p; 468 } *memalign_t; 469 470 # define malloc lint_malloc 471 # define free lint_free 472 # define realloc lint_realloc 473 # define calloc lint_calloc 474 #endif 475 476 #ifdef SYSMALLOC 477 # define xmalloc(i) smalloc(i) 478 # define xrealloc(p, i) srealloc(p, i) 479 # define xcalloc(n, s) scalloc(n, s) 480 # define xfree sfree 481 #else 482 # define xmalloc(i) malloc(i) 483 # define xrealloc(p, i) realloc(p, i) 484 # define xcalloc(n, s) calloc(n, s) 485 # define xfree free 486 #endif /* SYSMALLOC */ 487 #include "sh.char.h" 488 #include "sh.err.h" 489 #include "sh.dir.h" 490 #include "sh.proc.h" 491 492 #include "pathnames.h" 493 494 495 /* 496 * C shell 497 * 498 * Bill Joy, UC Berkeley 499 * October, 1978; May 1980 500 * 501 * Jim Kulp, IIASA, Laxenburg Austria 502 * April, 1980 503 */ 504 505 #ifdef HESIOD 506 # include <hesiod.h> 507 #endif /* HESIOD */ 508 509 #ifdef REMOTEHOST 510 # include <netdb.h> 511 #endif /* REMOTEHOST */ 512 513 #ifndef MAXHOSTNAMELEN 514 # ifdef HOST_NAME_MAX 515 # define MAXHOSTNAMELEN (HOST_NAME_MAX + 1) 516 # elif defined(SCO) && (SYSVREL > 3) 517 # include <sys/socket.h> 518 # else 519 # define MAXHOSTNAMELEN 256 520 # endif 521 #endif /* MAXHOSTNAMELEN */ 522 523 524 525 #define eq(a, b) (Strcmp(a, b) == 0) 526 527 /* globone() flags */ 528 #define G_ERROR 0 /* default action: error if multiple words */ 529 #define G_IGNORE 1 /* ignore the rest of the words */ 530 #define G_APPEND 2 /* make a sentence by cat'ing the words */ 531 532 /* 533 * Global flags 534 */ 535 EXTERN int chkstop IZERO; /* Warned of stopped jobs... allow exit */ 536 537 #if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD) 538 # define CLOSE_ON_EXEC 539 #else 540 EXTERN int didcch IZERO; /* Have closed unused fd's for child */ 541 #endif /* (FIOCLEX && FIONCLEX) || F_SETFD */ 542 543 EXTERN int didfds IZERO; /* Have setup i/o fd's for child */ 544 EXTERN int doneinp IZERO; /* EOF indicator after reset from readc */ 545 EXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */ 546 EXTERN int child IZERO; /* Child shell ... errors cause exit */ 547 EXTERN int haderr IZERO; /* Reset was because of an error */ 548 EXTERN int intty IZERO; /* Input is a tty */ 549 EXTERN int intact IZERO; /* We are interactive... therefore prompt */ 550 EXTERN int justpr IZERO; /* Just print because of :p hist mod */ 551 EXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */ 552 EXTERN int neednote IZERO; /* Need to pnotify() */ 553 EXTERN int noexec IZERO; /* Don't execute, just syntax check */ 554 EXTERN int pjobs IZERO; /* want to print jobs if interrupted */ 555 EXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */ 556 EXTERN int havhash IZERO; /* path hashing is available */ 557 EXTERN int editing IZERO; /* doing filename expansion and line editing */ 558 EXTERN int noediting IZERO; /* initial $term defaulted to noedit */ 559 EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */ 560 EXTERN int compat_expr IZERO;/* csh-style expressions? */ 561 EXTERN int isoutatty IZERO; /* is SHOUT a tty */ 562 EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */ 563 EXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */ 564 EXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */ 565 EXTERN int arun IZERO; /* Currently running multi-line-aliases */ 566 EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */ 567 EXTERN int inheredoc IZERO; /* Currently parsing a heredoc */ 568 /* We received a window change event */ 569 EXTERN volatile sig_atomic_t windowchg IZERO; 570 #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) 571 EXTERN int dspmbyte_ls; 572 #endif 573 574 /* 575 * Global i/o info 576 */ 577 EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */ 578 EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */ 579 extern Char *ffile; /* Name of shell file for $0 */ 580 extern int dolzero; /* if $?0 should return true... */ 581 582 extern char *seterr; /* Error message from scanner/parser */ 583 #ifndef errno 584 extern int errno; /* Error from C library routines */ 585 #endif 586 extern int exitset; 587 /* Temp name for << shell files in /tmp, for xfree() */ 588 EXTERN Char *shtemp IZERO; 589 590 #ifdef BSDTIMES 591 EXTERN struct timeval time0; /* Time at which the shell started */ 592 EXTERN struct sysrusage ru0; 593 #else 594 # ifdef _SEQUENT_ 595 EXTERN timeval_t time0; /* time at which shell started */ 596 EXTERN struct process_stats ru0; 597 # else /* _SEQUENT_ */ 598 # ifndef POSIX 599 EXTERN time_t time0; /* time at which shell started */ 600 # else /* POSIX */ 601 EXTERN clock_t time0; /* time at which shell started */ 602 EXTERN clock_t clk_tck; 603 # endif /* POSIX */ 604 EXTERN struct tms shtimes; /* shell and child times for process timing */ 605 # endif /* _SEQUENT_ */ 606 EXTERN time_t seconds0; 607 #endif /* BSDTIMES */ 608 609 #ifndef HZ 610 # define HZ 100 /* for division into seconds */ 611 #endif 612 613 /* 614 * Miscellany 615 */ 616 EXTERN Char *doldol; /* Character pid for $$ */ 617 EXTERN pid_t backpid; /* pid of the last background job */ 618 619 /* 620 * Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now 621 * cause pid's could be unsigned and that would break our -1 flag, and 622 * uid_t and gid_t are not defined in all the systems so I would have to 623 * make special cases for them. In the future... 624 */ 625 EXTERN uid_t uid, euid; /* Invokers real and effective */ 626 EXTERN gid_t gid, egid; /* User and group ids */ 627 EXTERN pid_t opgrp, /* Initial pgrp and tty pgrp */ 628 shpgrp, /* Pgrp of shell */ 629 tpgrp; /* Terminal process group */ 630 /* If tpgrp is -1, leave tty alone! */ 631 632 EXTERN Char *Prompt; /* The actual printed prompt or NULL */ 633 EXTERN Char *RPrompt; /* Right-hand side prompt or NULL */ 634 635 /* 636 * To be able to redirect i/o for builtins easily, the shell moves the i/o 637 * descriptors it uses away from 0,1,2. 638 * Ideally these should be in units which are closed across exec's 639 * (this saves work) but for version 6, this is not usually possible. 640 * The desired initial values for these descriptors are defined in 641 * sh.local.h. 642 */ 643 EXTERN int SHIN IZERO; /* Current shell input (script) */ 644 EXTERN int SHOUT IZERO; /* Shell output */ 645 EXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */ 646 EXTERN int OLDSTD IZERO; /* Old standard input (def for cmds) */ 647 648 649 #if SYSVREL == 4 && defined(_UTS) 650 /* 651 * From: fadden@uts.amdahl.com (Andy McFadden) 652 * we need sigsetjmp for UTS4, but not UTS2.1 653 */ 654 # define SIGSETJMP 655 #endif 656 657 /* 658 * Error control 659 * 660 * Errors in scanning and parsing set up an error message to be printed 661 * at the end and complete. Other errors always cause a reset. 662 * Because of source commands and .cshrc we need nested error catches. 663 */ 664 665 #ifdef SIGSETJMP 666 typedef struct { sigjmp_buf j; } jmp_buf_t; 667 # define setexit() sigsetjmp(reslab.j) 668 # define _reset() siglongjmp(reslab.j, 1) 669 #else 670 typedef struct { jmp_buf j; } jmp_buf_t; 671 # define setexit() setjmp(reslab.j) 672 # define _reset() longjmp(reslab.j, 1) 673 #endif 674 675 #define getexit(a) (void) ((a) = reslab) 676 #define resexit(a) (void) (reslab = (a)) 677 678 #define cpybin(a, b) (void) ((a) = (b)) 679 680 extern jmp_buf_t reslab; 681 682 EXTERN Char *gointr; /* Label for an onintr transfer */ 683 684 extern struct sigaction parintr; /* Parents interrupt catch */ 685 extern struct sigaction parterm; /* Parents terminate catch */ 686 687 /* 688 * Lexical definitions. 689 * 690 * All lexical space is allocated dynamically. 691 * The eighth/sixteenth bit of characters is used to prevent recognition, 692 * and eventually stripped. 693 */ 694 #define META 0200 695 #define ASCII 0177 696 #ifdef WIDE_STRINGS /* Implies SHORT_STRINGS */ 697 /* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */ 698 # define QUOTE 0x40000000 699 # define TRIM 0x3FFFFFFF /* Mask to strip quote bit */ 700 # define UNDER 0x08000000 /* Underline flag */ 701 # define BOLD 0x04000000 /* Bold flag */ 702 # define STANDOUT 0x02000000 /* Standout flag */ 703 # define LITERAL 0x01000000 /* Literal character flag */ 704 # define ATTRIBUTES 0x0F000000 /* The bits used for attributes */ 705 # define INVALID_BYTE 0x00800000 /* Invalid character on input */ 706 # ifdef SOLARIS2 707 # define CHAR 0x30FFFFFF /* Mask to mask out the character */ 708 # else 709 # define CHAR 0x00FFFFFF /* Mask to mask out the character */ 710 # endif 711 #elif defined (SHORT_STRINGS) 712 # define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */ 713 # define TRIM 0073777 /* Mask to strip quote/lit bit */ 714 # define UNDER 0040000 /* Underline flag */ 715 # define BOLD 0020000 /* Bold flag */ 716 # define STANDOUT 0010000 /* Standout flag */ 717 # define LITERAL 0004000 /* Literal character flag */ 718 # define ATTRIBUTES 0074000 /* The bits used for attributes */ 719 # define INVALID_BYTE 0 720 # define CHAR 0000377 /* Mask to mask out the character */ 721 #else 722 # define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */ 723 # define TRIM 0177 /* Mask to strip quote bit */ 724 # define UNDER 0000000 /* No extra bits to do both */ 725 # define BOLD 0000000 /* Bold flag */ 726 # define STANDOUT META /* Standout flag */ 727 # define LITERAL 0000000 /* Literal character flag */ 728 # define ATTRIBUTES 0200 /* The bits used for attributes */ 729 # define INVALID_BYTE 0 730 # define CHAR 0000177 /* Mask to mask out the character */ 731 #endif 732 #define CHAR_DBWIDTH (LITERAL|(LITERAL-1)) 733 734 EXTERN int AsciiOnly; /* If set only 7 bits expected in characters */ 735 736 /* 737 * Each level of input has a buffered input structure. 738 * There are one or more blocks of buffered input for each level, 739 * exactly one if the input is seekable and tell is available. 740 * In other cases, the shell buffers enough blocks to keep all loops 741 * in the buffer. 742 * 743 * If (WIDE_STRINGS && cantell), fbobp is always a byte offset, but 744 * (fseekp - fbobp) and (feobp - fbobp) are character offsets (usable for 745 * fbuf indexing). 746 * 747 * If (!cantell), all offsets are character offsets; if (!WIDE_STRINGS), there 748 * is no difference between byte and character offsets. 749 */ 750 EXTERN struct Bin { 751 off_t Bfseekp; /* Seek pointer, generally != lseek() value */ 752 off_t Bfbobp; /* Seekp of beginning of buffers */ 753 off_t Bfeobp; /* Seekp of end of buffers */ 754 int Bfblocks; /* Number of buffer blocks */ 755 Char **Bfbuf; /* The array of buffer blocks */ 756 #ifdef WIDE_STRINGS 757 /* Number of bytes in each character if (cantell) */ 758 unsigned char Bfclens[BUFSIZE + 1]; 759 #endif 760 } B; 761 762 /* 763 * This structure allows us to seek inside aliases 764 */ 765 struct Ain { 766 int type; 767 #define TCSH_I_SEEK 0 /* Invalid seek */ 768 #define TCSH_A_SEEK 1 /* Alias seek */ 769 #define TCSH_F_SEEK 2 /* File seek */ 770 #define TCSH_E_SEEK 3 /* Eval seek */ 771 union { 772 off_t _f_seek; /* A byte offset if (cantell) */ 773 Char* _c_seek; 774 } fc; 775 #define f_seek fc._f_seek 776 #define c_seek fc._c_seek 777 Char **a_seek; 778 } ; 779 780 extern int aret; /* Type of last char returned */ 781 #define SEEKEQ(a, b) ((a)->type == (b)->type && \ 782 (a)->f_seek == (b)->f_seek && \ 783 (a)->a_seek == (b)->a_seek) 784 785 #define fseekp B.Bfseekp 786 #define fbobp B.Bfbobp 787 #define feobp B.Bfeobp 788 #define fblocks B.Bfblocks 789 #define fbuf B.Bfbuf 790 #define fclens B.Bfclens 791 792 /* 793 * The shell finds commands in loops by reseeking the input 794 * For whiles, in particular, it reseeks to the beginning of the 795 * line the while was on; hence the while placement restrictions. 796 */ 797 EXTERN struct Ain lineloc; 798 799 EXTERN int cantell; /* Is current source tellable ? */ 800 801 /* 802 * Input lines are parsed into doubly linked circular 803 * lists of words of the following form. 804 */ 805 struct wordent { 806 Char *word; 807 struct wordent *prev; 808 struct wordent *next; 809 }; 810 811 /* 812 * During word building, both in the initial lexical phase and 813 * when expanding $ variable substitutions, expansion by `!' and `$' 814 * must be inhibited when reading ahead in routines which are themselves 815 * processing `!' and `$' expansion or after characters such as `\' or in 816 * quotations. The following flags are passed to the getC routines 817 * telling them which of these substitutions are appropriate for the 818 * next character to be returned. 819 */ 820 #define DODOL 1 821 #define DOEXCL 2 822 #define DOALL DODOL|DOEXCL 823 824 /* 825 * Labuf implements a general buffer for lookahead during lexical operations. 826 * Text which is to be placed in the input stream can be stuck here. 827 * We stick parsed ahead $ constructs during initial input, 828 * process id's from `$$', and modified variable values (from qualifiers 829 * during expansion in sh.dol.c) here. 830 */ 831 extern struct Strbuf labuf; 832 EXTERN size_t lap; /* N/A if == labuf.len, index into labuf.s otherwise */ 833 834 /* 835 * Parser structure 836 * 837 * Each command is parsed to a tree of command structures and 838 * flags are set bottom up during this process, to be propagated down 839 * as needed during the semantics/exeuction pass (sh.sem.c). 840 */ 841 struct command { 842 unsigned char t_dtyp; /* Type of node */ 843 #define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */ 844 #define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */ 845 #define NODE_PIPE 3 /* t_dlef | t_drit */ 846 #define NODE_LIST 4 /* t_dlef ; t_drit */ 847 #define NODE_OR 5 /* t_dlef || t_drit */ 848 #define NODE_AND 6 /* t_dlef && t_drit */ 849 unsigned char t_nice; /* Nice value */ 850 #ifdef apollo 851 unsigned char t_systype; /* System environment */ 852 #endif 853 unsigned long t_dflg; /* Flags, e.g. F_AMPERSAND|... */ 854 /* save these when re-doing */ 855 #ifndef apollo 856 #define F_SAVE (F_NICE|F_TIME|F_NOHUP|F_HUP) 857 #else 858 #define F_SAVE (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER) 859 #endif 860 #define F_AMPERSAND (1<<0) /* executes in background */ 861 #define F_APPEND (1<<1) /* output is redirected >> */ 862 #define F_PIPEIN (1<<2) /* input is a pipe */ 863 #define F_PIPEOUT (1<<3) /* output is a pipe */ 864 #define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */ 865 #define F_NOINTERRUPT (1<<5) /* should be immune from intr's */ 866 /* spare */ 867 #define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */ 868 #define F_OVERWRITE (1<<8) /* output was ! */ 869 #define F_READ (1<<9) /* input redirection is << */ 870 #define F_REPEAT (1<<10) /* reexec aft if, repeat,... */ 871 #define F_NICE (1<<11) /* t_nice is meaningful */ 872 #define F_NOHUP (1<<12) /* nohup this command */ 873 #define F_TIME (1<<13) /* time this command */ 874 #define F_BACKQ (1<<14) /* command is in `` */ 875 #define F_HUP (1<<15) /* hup this command */ 876 #ifdef apollo 877 #define F_VER (1<<16) /* execute command under SYSTYPE */ 878 #endif 879 union { 880 Char *T_dlef; /* Input redirect word */ 881 struct command *T_dcar; /* Left part of list/pipe */ 882 } L; 883 union { 884 Char *T_drit; /* Output redirect word */ 885 struct command *T_dcdr; /* Right part of list/pipe */ 886 } R; 887 #define t_dlef L.T_dlef 888 #define t_dcar L.T_dcar 889 #define t_drit R.T_drit 890 #define t_dcdr R.T_dcdr 891 Char **t_dcom; /* Command/argument vector */ 892 struct command *t_dspr; /* Pointer to ()'d subtree */ 893 }; 894 895 896 /* 897 * The keywords for the parser 898 */ 899 #define TC_BREAK 0 900 #define TC_BRKSW 1 901 #define TC_CASE 2 902 #define TC_DEFAULT 3 903 #define TC_ELSE 4 904 #define TC_END 5 905 #define TC_ENDIF 6 906 #define TC_ENDSW 7 907 #define TC_EXIT 8 908 #define TC_FOREACH 9 909 #define TC_GOTO 10 910 #define TC_IF 11 911 #define TC_LABEL 12 912 #define TC_LET 13 913 #define TC_SET 14 914 #define TC_SWITCH 15 915 #define TC_TEST 16 916 #define TC_THEN 17 917 #define TC_WHILE 18 918 919 /* 920 * These are declared here because they want to be 921 * initialized in sh.init.c (to allow them to be made readonly) 922 */ 923 924 #if defined(hpux) && defined(__STDC__) && !defined(__GNUC__) 925 /* Avoid hpux ansi mode spurious warnings */ 926 typedef void (*bfunc_t) (); 927 #else 928 typedef void (*bfunc_t) (Char **, struct command *); 929 #endif /* hpux && __STDC__ && !__GNUC__ */ 930 931 extern const struct biltins { 932 const char *bname; 933 bfunc_t bfunct; 934 int minargs, maxargs; 935 } bfunc[]; 936 extern int nbfunc; 937 #ifdef WINNT_NATIVE 938 extern struct biltins nt_bfunc[]; 939 extern int nt_nbfunc; 940 #endif /* WINNT_NATIVE*/ 941 extern int bequiet; 942 943 extern struct srch { 944 const char *s_name; 945 int s_value; 946 } srchn[]; 947 extern int nsrchn; 948 949 /* 950 * Structure defining the existing while/foreach loops at this 951 * source level. Loops are implemented by seeking back in the 952 * input. For foreach (fe), the word list is attached here. 953 */ 954 EXTERN struct whyle { 955 struct Ain w_start; /* Point to restart loop */ 956 struct Ain w_end; /* End of loop (0 if unknown) */ 957 Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */ 958 Char *w_fename; /* Name for fe */ 959 struct whyle *w_next; /* Next (more outer) loop */ 960 } *whyles; 961 962 /* 963 * Variable structure 964 * 965 * Aliases and variables are stored in AVL balanced binary trees. 966 */ 967 EXTERN struct varent { 968 Char **vec; /* Array of words which is the value */ 969 Char *v_name; /* Name of variable/alias */ 970 int v_flags; /* Flags */ 971 #define VAR_ALL -1 972 #define VAR_READONLY 1 973 #define VAR_READWRITE 2 974 #define VAR_NOGLOB 4 975 #define VAR_FIRST 32 976 #define VAR_LAST 64 977 struct varent *v_link[3]; /* The links, see below */ 978 int v_bal; /* Balance factor */ 979 } shvhed IZERO_STRUCT, aliases IZERO_STRUCT; 980 981 #define v_left v_link[0] 982 #define v_right v_link[1] 983 #define v_parent v_link[2] 984 985 #define adrof(v) adrof1(v, &shvhed) 986 #define varval(v) value1(v, &shvhed) 987 988 /* 989 * The following are for interfacing redo substitution in 990 * aliases to the lexical routines. 991 */ 992 EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */ 993 EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */ 994 EXTERN Char **alvec IZERO_STRUCT, 995 *alvecp IZERO_STRUCT;/* The (remnants of) alias vector */ 996 997 /* 998 * Filename/command name expansion variables 999 */ 1000 1001 #ifdef __CYGWIN__ 1002 # undef MAXPATHLEN 1003 #endif /* __CYGWIN__ */ 1004 1005 #ifndef MAXPATHLEN 1006 # ifdef PATH_MAX 1007 # define MAXPATHLEN PATH_MAX 1008 # else 1009 # define MAXPATHLEN 2048 1010 # endif 1011 #endif /* MAXPATHLEN */ 1012 1013 #ifndef HAVENOLIMIT 1014 /* 1015 * resource limits 1016 */ 1017 extern struct limits { 1018 int limconst; 1019 const char *limname; 1020 int limdiv; 1021 const char *limscale; 1022 } limits[]; 1023 #endif /* !HAVENOLIMIT */ 1024 1025 /* 1026 * History list 1027 * 1028 * Each history list entry contains an embedded wordlist 1029 * from the scanner, a number for the event, and a reference count 1030 * to aid in discarding old entries. 1031 * 1032 * Essentially "invisible" entries are put on the history list 1033 * when history substitution includes modifiers, and thrown away 1034 * at the next discarding since their event numbers are very negative. 1035 */ 1036 EXTERN struct Hist { 1037 struct wordent Hlex; 1038 int Hnum; 1039 int Href; 1040 time_t Htime; 1041 Char *histline; 1042 struct Hist *Hnext; 1043 } Histlist IZERO_STRUCT; 1044 1045 EXTERN struct wordent paraml; /* Current lexical word list */ 1046 EXTERN int eventno; /* Next events number */ 1047 EXTERN int lastev; /* Last event reference (default) */ 1048 1049 EXTERN Char HIST; /* history invocation character */ 1050 EXTERN Char HISTSUB; /* auto-substitute character */ 1051 EXTERN Char PRCH; /* Prompt symbol for regular users */ 1052 EXTERN Char PRCHROOT; /* Prompt symbol for root */ 1053 1054 /* 1055 * For operating systems with single case filenames (OS/2) 1056 */ 1057 #ifdef CASE_INSENSITIVE 1058 # ifdef WIDE_STRINGS 1059 # define samecase(x) (towlower(x)) 1060 # else 1061 # define samecase(x) (isupper((unsigned char)(x)) ? \ 1062 tolower((unsigned char)(x)) : (x)) 1063 # endif 1064 #else 1065 # define samecase(x) (x) 1066 #endif /* CASE_INSENSITIVE */ 1067 1068 /* 1069 * strings.h: 1070 */ 1071 #ifndef SHORT_STRINGS 1072 #define Strchr(a, b) strchr(a, b) 1073 #define Strrchr(a, b) strrchr(a, b) 1074 #define Strcat(a, b) strcat(a, b) 1075 #define Strncat(a, b, c) strncat(a, b, c) 1076 #define Strcpy(a, b) strcpy(a, b) 1077 #define Strncpy(a, b, c) strncpy(a, b, c) 1078 #define Strlen(a) strlen(a) 1079 #define Strcmp(a, b) strcmp(a, b) 1080 #define Strncmp(a, b, c) strncmp(a, b, c) 1081 #define Strcasecmp(a, b) strcasecmp(a, b) 1082 1083 #define Strspl(a, b) strspl(a, b) 1084 #define Strnsave(a, b) strnsave(a, b) 1085 #define Strsave(a) strsave(a) 1086 #define Strend(a) strend(a) 1087 #define Strstr(a, b) strstr(a, b) 1088 1089 #define str2short(a) (a) 1090 #define blk2short(a) saveblk(a) 1091 #define short2blk(a) saveblk(a) 1092 #define short2str(a) caching_strip(a) 1093 #else 1094 #ifdef WIDE_STRINGS 1095 #define Strchr(a, b) wcschr(a, b) 1096 #define Strrchr(a, b) wcsrchr(a, b) 1097 #define Strcat(a, b) wcscat(a, b) 1098 #define Strncat(a, b, c) wcsncat(a, b, c) 1099 #define Strcpy(a, b) wcscpy(a, b) 1100 #define Strncpy(a, b, c) wcsncpy(a, b, c) 1101 #define Strlen(a) wcslen(a) 1102 #define Strcmp(a, b) wcscmp(a, b) 1103 #define Strncmp(a, b, c) wcsncmp(a, b, c) 1104 #else 1105 #define Strchr(a, b) s_strchr(a, b) 1106 #define Strrchr(a, b) s_strrchr(a, b) 1107 #define Strcat(a, b) s_strcat(a, b) 1108 #define Strncat(a, b, c) s_strncat(a, b, c) 1109 #define Strcpy(a, b) s_strcpy(a, b) 1110 #define Strncpy(a, b, c) s_strncpy(a, b, c) 1111 #define Strlen(a) s_strlen(a) 1112 #define Strcmp(a, b) s_strcmp(a, b) 1113 #define Strncmp(a, b, c) s_strncmp(a, b, c) 1114 #endif 1115 #define Strcasecmp(a, b) s_strcasecmp(a, b) 1116 1117 #define Strspl(a, b) s_strspl(a, b) 1118 #define Strnsave(a, b) s_strnsave(a, b) 1119 #define Strsave(a) s_strsave(a) 1120 #define Strend(a) s_strend(a) 1121 #define Strstr(a, b) s_strstr(a, b) 1122 #endif 1123 1124 /* 1125 * setname is a macro to save space (see sh.err.c) 1126 */ 1127 EXTERN const char *bname; 1128 1129 #define setname(a) (bname = (a)) 1130 1131 #ifdef VFORK 1132 EXTERN Char *Vsav; 1133 EXTERN Char *Vdp; 1134 EXTERN Char *Vexpath; 1135 EXTERN char **Vt; 1136 #endif /* VFORK */ 1137 1138 EXTERN Char **evalvec; 1139 EXTERN Char *evalp; 1140 1141 extern struct mesg { 1142 const char *iname; /* name from /usr/include */ 1143 const char *pname; /* print name */ 1144 } mesg[]; 1145 1146 /* word_chars is set by default to WORD_CHARS but can be overridden by 1147 the worchars variable--if unset, reverts to WORD_CHARS */ 1148 1149 EXTERN Char *word_chars; 1150 1151 #define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ 1152 1153 EXTERN Char *STR_SHELLPATH; 1154 1155 #ifdef _PATH_BSHELL 1156 EXTERN Char *STR_BSHELL; 1157 #endif 1158 EXTERN Char *STR_WORD_CHARS; 1159 EXTERN Char **STR_environ IZERO; 1160 1161 extern int dont_free; /* Tell free that we are in danger if we free */ 1162 1163 extern Char *INVPTR; 1164 extern Char **INVPPTR; 1165 1166 extern char *progname; 1167 extern int tcsh; 1168 extern int xlate_cr; 1169 extern int output_raw; 1170 extern int lbuffed; 1171 extern time_t Htime; 1172 extern int numeof; 1173 extern int insource; 1174 extern char linbuf[]; 1175 extern char *linp; 1176 extern int nsig; 1177 #ifdef VFORK 1178 extern int use_fork; 1179 #endif 1180 extern int tellwhat; 1181 extern int NoNLSRebind; 1182 #if !HAVE_DECL_ENVIRON 1183 extern char **environ; 1184 #endif 1185 1186 #include "tc.h" 1187 1188 #ifndef WINNT_NATIVE 1189 # ifdef NLS_CATALOGS 1190 # if defined(linux) || defined(__GNU__) || defined(__GLIBC__) 1191 # include <locale.h> 1192 # ifdef notdef 1193 # include <localeinfo.h> /* Has this changed ? */ 1194 # endif 1195 # include <features.h> 1196 # endif 1197 # ifdef SUNOS4 1198 /* Who stole my nl_types.h? :-( 1199 * All this stuff is in the man pages, but nowhere else? 1200 * This does not link right now... 1201 */ 1202 typedef void *nl_catd; 1203 extern const char * catgets (nl_catd, int, int, const char *); 1204 nl_catd catopen (const char *, int); 1205 int catclose (nl_catd); 1206 # else 1207 # ifdef __uxps__ 1208 # define gettxt gettxt_ds 1209 # endif 1210 # include <nl_types.h> 1211 # ifdef __uxps__ 1212 # undef gettxt 1213 # endif 1214 # endif 1215 # ifndef MCLoadBySet 1216 # define MCLoadBySet 0 1217 # endif 1218 EXTERN nl_catd catd; 1219 # if defined(HAVE_ICONV) && defined(HAVE_NL_LANGINFO) 1220 # define CGETS(b, c, d) iconv_catgets(catd, b, c, d) 1221 # else 1222 # define CGETS(b, c, d) xcatgets(catd, b, c, d) 1223 # endif 1224 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1225 # else 1226 # define CGETS(b, c, d) d 1227 # define CSAVS(b, c, d) d 1228 # endif 1229 #else /* WINNT_NATIVE */ 1230 # define CGETS(b, c, d) nt_cgets( b, c, d) 1231 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1232 #endif /* WINNT_NATIVE */ 1233 1234 #if defined(FILEC) 1235 extern int filec; 1236 #endif /* FILEC */ 1237 1238 #include "sh.decls.h" 1239 /* 1240 * Since on some machines characters are unsigned, and the signed 1241 * keyword is not universally implemented, we treat all characters 1242 * as unsigned and sign extend them where we need. 1243 */ 1244 #define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a)) 1245 1246 /* 1247 * explanation for use by the "--help" option 1248 */ 1249 #define HELP_STRING "\ 1250 -b file batch mode, read and execute commands from `file' \n\ 1251 -c command run `command' from next argument \n\ 1252 -d load directory stack from `~/.cshdirs' \n\ 1253 -Dname[=value] define environment variable `name' to `value' (DomainOS only) \n\ 1254 -e exit on any error \n\ 1255 -f start faster by ignoring the start-up file \n\ 1256 -F use fork() instead of vfork() when spawning (ConvexOS only) \n\ 1257 -i interactive, even when input is not from a terminal \n\ 1258 -l act as a login shell, must be the only option specified \n\ 1259 -m load the start-up file, whether or not owned by effective user \n\ 1260 -n file no execute mode, just check syntax of the following `file' \n\ 1261 -q accept SIGQUIT for running under a debugger \n\ 1262 -s read commands from standard input \n\ 1263 -t read one line from standard input \n\ 1264 -v echo commands after history substitution \n\ 1265 -V like -v but including commands read from the start-up file \n\ 1266 -x echo commands immediately before execution \n\ 1267 -X like -x but including commands read from the start-up file \n\ 1268 --help print this message and exit \n\ 1269 --version print the version shell variable and exit \n\ 1270 \nSee the tcsh(1) manual page for detailed information.\n" 1271 1272 #include "tc.nls.h" 1273 1274 #endif /* _h_sh */ 1275