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) 54typedef 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> 92typedef wchar_t Char; 93typedef unsigned long uChar; 94typedef 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 99typedef short Char; 100typedef unsigned short uChar; 101typedef 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 108typedef char Char; 109typedef unsigned char uChar; 110typedef 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) 120static 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 423typedef 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__) */ 435typedef 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 452extern pid_t getpgrp (int); 453# else 454extern pid_t getpgrp (void); 455# endif 456#endif 457 458#ifndef lint 459typedef ptr_t memalign_t; 460#else 461typedef 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 */ 535EXTERN 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 540EXTERN int didcch IZERO; /* Have closed unused fd's for child */ 541#endif /* (FIOCLEX && FIONCLEX) || F_SETFD */ 542 543EXTERN int didfds IZERO; /* Have setup i/o fd's for child */ 544EXTERN int doneinp IZERO; /* EOF indicator after reset from readc */ 545EXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */ 546EXTERN int child IZERO; /* Child shell ... errors cause exit */ 547EXTERN int haderr IZERO; /* Reset was because of an error */ 548EXTERN int intty IZERO; /* Input is a tty */ 549EXTERN int intact IZERO; /* We are interactive... therefore prompt */ 550EXTERN int justpr IZERO; /* Just print because of :p hist mod */ 551EXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */ 552EXTERN int neednote IZERO; /* Need to pnotify() */ 553EXTERN int noexec IZERO; /* Don't execute, just syntax check */ 554EXTERN int pjobs IZERO; /* want to print jobs if interrupted */ 555EXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */ 556EXTERN int havhash IZERO; /* path hashing is available */ 557EXTERN int editing IZERO; /* doing filename expansion and line editing */ 558EXTERN int noediting IZERO; /* initial $term defaulted to noedit */ 559EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */ 560EXTERN int compat_expr IZERO;/* csh-style expressions? */ 561EXTERN int isoutatty IZERO; /* is SHOUT a tty */ 562EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */ 563EXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */ 564EXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */ 565EXTERN int arun IZERO; /* Currently running multi-line-aliases */ 566EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */ 567EXTERN int inheredoc IZERO; /* Currently parsing a heredoc */ 568/* We received a window change event */ 569EXTERN volatile sig_atomic_t windowchg IZERO; 570#if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) 571EXTERN int dspmbyte_ls; 572#endif 573 574/* 575 * Global i/o info 576 */ 577EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */ 578EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */ 579extern Char *ffile; /* Name of shell file for $0 */ 580extern int dolzero; /* if $?0 should return true... */ 581 582extern char *seterr; /* Error message from scanner/parser */ 583#ifndef errno 584extern int errno; /* Error from C library routines */ 585#endif 586extern int exitset; 587/* Temp name for << shell files in /tmp, for xfree() */ 588EXTERN Char *shtemp IZERO; 589 590#ifdef BSDTIMES 591EXTERN struct timeval time0; /* Time at which the shell started */ 592EXTERN struct sysrusage ru0; 593#else 594# ifdef _SEQUENT_ 595EXTERN timeval_t time0; /* time at which shell started */ 596EXTERN struct process_stats ru0; 597# else /* _SEQUENT_ */ 598# ifndef POSIX 599EXTERN time_t time0; /* time at which shell started */ 600# else /* POSIX */ 601EXTERN clock_t time0; /* time at which shell started */ 602EXTERN clock_t clk_tck; 603# endif /* POSIX */ 604EXTERN struct tms shtimes; /* shell and child times for process timing */ 605# endif /* _SEQUENT_ */ 606EXTERN 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 */ 616EXTERN Char *doldol; /* Character pid for $$ */ 617EXTERN 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 */ 625EXTERN uid_t uid, euid; /* Invokers real and effective */ 626EXTERN gid_t gid, egid; /* User and group ids */ 627EXTERN 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 632EXTERN Char *Prompt; /* The actual printed prompt or NULL */ 633EXTERN 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 */ 643EXTERN int SHIN IZERO; /* Current shell input (script) */ 644EXTERN int SHOUT IZERO; /* Shell output */ 645EXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */ 646EXTERN 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 680extern jmp_buf_t reslab; 681 682EXTERN Char *gointr; /* Label for an onintr transfer */ 683 684extern struct sigaction parintr; /* Parents interrupt catch */ 685extern 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 734EXTERN 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 */ 750EXTERN 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 */ 765struct 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 780extern 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 */ 797EXTERN struct Ain lineloc; 798 799EXTERN 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 */ 805struct 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 */ 831extern struct Strbuf labuf; 832EXTERN 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 */ 841struct 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 */ 926typedef void (*bfunc_t) (); 927#else 928typedef void (*bfunc_t) (Char **, struct command *); 929#endif /* hpux && __STDC__ && !__GNUC__ */ 930 931extern const struct biltins { 932 const char *bname; 933 bfunc_t bfunct; 934 int minargs, maxargs; 935} bfunc[]; 936extern int nbfunc; 937#ifdef WINNT_NATIVE 938extern struct biltins nt_bfunc[]; 939extern int nt_nbfunc; 940#endif /* WINNT_NATIVE*/ 941extern int bequiet; 942 943extern struct srch { 944 const char *s_name; 945 int s_value; 946} srchn[]; 947extern 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 */ 954EXTERN 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 */ 967EXTERN 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 */ 992EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */ 993EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */ 994EXTERN 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 */ 1017extern 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 */ 1036EXTERN 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 1045EXTERN struct wordent paraml; /* Current lexical word list */ 1046EXTERN int eventno; /* Next events number */ 1047EXTERN int lastev; /* Last event reference (default) */ 1048 1049EXTERN Char HIST; /* history invocation character */ 1050EXTERN Char HISTSUB; /* auto-substitute character */ 1051EXTERN Char PRCH; /* Prompt symbol for regular users */ 1052EXTERN 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 */ 1127EXTERN const char *bname; 1128 1129#define setname(a) (bname = (a)) 1130 1131#ifdef VFORK 1132EXTERN Char *Vsav; 1133EXTERN Char *Vdp; 1134EXTERN Char *Vexpath; 1135EXTERN char **Vt; 1136#endif /* VFORK */ 1137 1138EXTERN Char **evalvec; 1139EXTERN Char *evalp; 1140 1141extern 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 1149EXTERN Char *word_chars; 1150 1151#define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ 1152 1153EXTERN Char *STR_SHELLPATH; 1154 1155#ifdef _PATH_BSHELL 1156EXTERN Char *STR_BSHELL; 1157#endif 1158EXTERN Char *STR_WORD_CHARS; 1159EXTERN Char **STR_environ IZERO; 1160 1161extern int dont_free; /* Tell free that we are in danger if we free */ 1162 1163extern Char *INVPTR; 1164extern Char **INVPPTR; 1165 1166extern char *progname; 1167extern int tcsh; 1168extern int xlate_cr; 1169extern int output_raw; 1170extern int lbuffed; 1171extern time_t Htime; 1172extern int numeof; 1173extern int insource; 1174extern char linbuf[]; 1175extern char *linp; 1176extern int nsig; 1177#ifdef VFORK 1178extern int use_fork; 1179#endif 1180extern int tellwhat; 1181extern int NoNLSRebind; 1182#if !HAVE_DECL_ENVIRON 1183extern 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 1218EXTERN 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) 1235extern 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