1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.h,v 3.174 2015/05/10 13:29:28 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 #if defined(KANJI) && defined(WIDE_STRINGS) && defined(HAVE_NL_LANGINFO) && defined(CODESET) 80 #define AUTOSET_KANJI 81 #endif 82 /* 83 * Sanity 84 */ 85 #if defined(_POSIX_SOURCE) && !defined(POSIX) 86 # define POSIX 87 #endif 88 89 #if defined(POSIXJOBS) && !defined(BSDJOBS) 90 # define BSDJOBS 91 #endif 92 93 #define TMP_TEMPLATE ".XXXXXX" 94 95 #ifdef SHORT_STRINGS 96 # ifdef WIDE_STRINGS 97 #include <wchar.h> 98 # ifdef UTF16_STRINGS 99 typedef wint_t Char; 100 # else 101 typedef wchar_t Char; 102 #endif 103 typedef unsigned long uChar; 104 typedef wint_t eChar; /* Can contain any Char value or CHAR_ERR */ 105 #define CHAR_ERR WEOF /* Pretty please, use bit 31... */ 106 #define normal_mbtowc(PWC, S, N) rt_mbtowc(PWC, S, N) 107 #define reset_mbtowc() TCSH_IGNORE(mbtowc(NULL, NULL, 0)) 108 # else 109 typedef short Char; 110 typedef unsigned short uChar; 111 typedef int eChar; 112 #define CHAR_ERR (-1) 113 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 114 #define reset_mbtowc() ((void)0) 115 # endif 116 # define SAVE(a) (Strsave(str2short(a))) 117 #else 118 typedef char Char; 119 typedef unsigned char uChar; 120 typedef int eChar; 121 #define CHAR_ERR (-1) 122 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 123 #define reset_mbtowc() ((void)0) 124 # define SAVE(a) (strsave(a)) 125 #endif 126 127 #if !defined(__inline) && !defined(__GNUC__) && !defined(_MSC_VER) 128 #define __inline 129 #endif 130 #ifdef _MSC_VER 131 #define TCSH_PTRDIFF_T_FMT "I" 132 #else 133 #define TCSH_PTRDIFF_T_FMT "t" 134 #endif 135 /* Elide unused argument warnings */ 136 #define USE(a) (void) (a) 137 #define TCSH_IGNORE(a) tcsh_ignore((intptr_t)a) 138 static __inline void tcsh_ignore(intptr_t a) 139 { 140 USE(a); 141 } 142 143 /* 144 * Return true if the path is absolute 145 */ 146 #if defined(WINNT_NATIVE) 147 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 148 (Isalpha((p)[0]) && (p)[1] == ':')) 149 #elif defined(__CYGWIN__) 150 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 151 (Isalpha((p)[0]) && (p)[1] == ':' && \ 152 ((p)[2] == '\0' || (p)[2] == '/'))) 153 #else /* !WINNT_NATIVE && !__CYGWIN__ */ 154 # define ABSOLUTEP(p) (*(p) == '/') 155 #endif /* WINNT_NATIVE || __CYGWIN__ */ 156 157 /* 158 * Fundamental definitions which may vary from system to system. 159 * 160 * BUFSIZE The i/o buffering size; also limits word size 161 * MAILINTVL How often to mailcheck; more often is more expensive 162 */ 163 #ifdef BUFSIZE 164 # if BUFSIZE < 4096 165 # undef BUFSIZE 166 # define BUFSIZE 4096 /* buffer size should be no less than this */ 167 # endif 168 #else 169 # define BUFSIZE 4096 170 #endif /* BUFSIZE */ 171 172 #define FORKSLEEP 10 /* delay loop on non-interactive fork failure */ 173 #define MAILINTVL 600 /* 10 minutes */ 174 175 #ifndef INBUFSIZE 176 # define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */ 177 #endif /* INBUFSIZE */ 178 179 180 /* 181 * What our builtin echo looks like 182 */ 183 #define NONE_ECHO 0 184 #define BSD_ECHO 1 185 #define SYSV_ECHO 2 186 #define BOTH_ECHO (BSD_ECHO|SYSV_ECHO) 187 188 #ifndef ECHO_STYLE 189 # if SYSVREL > 0 190 # define ECHO_STYLE SYSV_ECHO 191 # else /* SYSVREL == 0 */ 192 # define ECHO_STYLE BSD_ECHO 193 # endif /* SYSVREL */ 194 #endif /* ECHO_STYLE */ 195 196 /* 197 * The shell moves std in/out/diag and the old std input away from units 198 * 0, 1, and 2 so that it is easy to set up these standards for invoked 199 * commands. 200 */ 201 #define FSAFE 5 /* We keep the first 5 descriptors untouched */ 202 #define FSHTTY 15 /* /dev/tty when manip pgrps */ 203 #define FSHIN 16 /* Preferred desc for shell input */ 204 #define FSHOUT 17 /* ... shell output */ 205 #define FSHDIAG 18 /* ... shell diagnostics */ 206 #define FOLDSTD 19 /* ... old std input */ 207 208 #ifdef PROF 209 #define xexit(n) done(n) 210 #endif 211 212 #ifdef cray 213 # define word word_t /* sys/types.h defines word.. bad move! */ 214 #endif 215 216 #include <sys/types.h> 217 218 #ifdef cray 219 # undef word 220 #endif 221 222 /* 223 * Path separator in environment variables 224 */ 225 #ifndef PATHSEP 226 # if defined(__EMX__) || defined(WINNT_NATIVE) 227 # define PATHSEP ';' 228 # else /* unix */ 229 # define PATHSEP ':' 230 # endif /* __EMX__ || WINNT_NATIVE */ 231 #endif /* !PATHSEP */ 232 233 #if defined(__HP_CXD_SPP) && !defined(__hpux) 234 # include <sys/cnx_stat.h> 235 # define stat stat64 236 # define fstat fstat64 237 # define lstat lstat64 238 #endif /* __HP_CXD_SPP && !__hpux */ 239 240 #ifdef HAVE_LONG_LONG 241 typedef long long tcsh_number_t; 242 #else 243 typedef long tcsh_number_t; 244 #endif 245 /* 246 * This macro compares the st_dev field of struct stat. On aix on ibmESA 247 * st_dev is a structure, so comparison does not work. 248 */ 249 #ifndef DEV_DEV_COMPARE 250 # define DEV_DEV_COMPARE(x,y) ((x) == (y)) 251 #endif /* DEV_DEV_COMPARE */ 252 253 #ifdef _SEQUENT_ 254 # include <sys/procstats.h> 255 #endif /* _SEQUENT_ */ 256 #if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE) 257 # include <sys/times.h> 258 #endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */ 259 260 #ifdef NLS 261 # include <locale.h> 262 #endif /* NLS */ 263 264 #if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__) 265 # include <sys/param.h> 266 #endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */ 267 #include <sys/stat.h> 268 269 #if defined(BSDTIMES) || defined(BSDLIMIT) 270 # include <sys/time.h> 271 # if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__) 272 # include "/usr/ucbinclude/sys/resource.h" 273 # else 274 # ifdef convex 275 # define sysrusage cvxrusage 276 # include <sys/sysinfo.h> 277 # else 278 # define sysrusage rusage 279 # include <sys/resource.h> 280 # endif /* convex */ 281 # endif /* SYSVREL>3 */ 282 #endif /* BSDTIMES */ 283 284 #ifndef WINNT_NATIVE 285 # ifndef POSIX 286 # ifdef TERMIO 287 # include <termio.h> 288 # else /* SGTTY */ 289 # include <sgtty.h> 290 # endif /* TERMIO */ 291 # else /* POSIX */ 292 # ifndef _UWIN 293 # include <termios.h> 294 # else 295 # include <termio.h> 296 # endif /* _UWIN */ 297 # if SYSVREL > 3 || defined(__linux__) 298 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 299 # undef TIOCSLTC 300 # undef CSWTCH 301 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 302 # endif /* SYSVREL > 3 */ 303 # endif /* POSIX */ 304 #endif /* WINNT_NATIVE */ 305 306 #ifdef sonyrisc 307 # include <sys/ttold.h> 308 #endif /* sonyrisc */ 309 310 #if defined(POSIX) && !defined(WINNT_NATIVE) 311 # include <unistd.h> 312 313 /* 314 * the gcc+protoize version of <stdlib.h> 315 * redefines malloc(), so we define the following 316 * to avoid it. 317 */ 318 # if defined(SYSMALLOC) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX) 319 # define NO_FIX_MALLOC 320 # include <stdlib.h> 321 # else /* glibc */ 322 # define _GNU_STDLIB_H 323 # define malloc __malloc 324 # define free __free 325 # define calloc __calloc 326 # define realloc __realloc 327 # include <stdlib.h> 328 # undef malloc 329 # undef free 330 # undef calloc 331 # undef realloc 332 # endif /* glibc || sgi */ 333 #endif /* POSIX && !WINNT_NATIVE */ 334 #include <limits.h> 335 336 #if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) 337 # if !defined(pyr) && !defined(stellar) 338 # include <time.h> 339 # ifdef _MINIX 340 # define HZ CLOCKS_PER_SEC 341 # endif /* _MINIX */ 342 # endif /* !pyr && !stellar */ 343 #endif /* SYSVREL > 0 || _IBMR2 */ 344 345 /* In the following ifdef the DECOSF1 has been commented so that later 346 * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions... 347 */ 348 #if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO)) 349 # if !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) 350 # include <sys/ioctl.h> 351 # if SYSVREL > 3 || defined(__linux__) 352 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 353 # undef TIOCSLTC 354 # undef CSWTCH 355 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 356 # endif /* SYSVREL > 3 */ 357 # endif 358 #endif 359 360 #if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX) 361 #undef CSWTCH 362 #define CSWTCH _POSIX_VDISABLE 363 #endif 364 365 #if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__) 366 # include <sys/filio.h> 367 #endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */ 368 369 #if !defined(_MINIX) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D) 370 # include <sys/file.h> 371 #endif /* !_MINIX && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */ 372 373 #if !defined(O_RDONLY) || !defined(O_NDELAY) 374 # include <fcntl.h> 375 #endif 376 377 #include <errno.h> 378 379 #include <setjmp.h> 380 381 #include <stdarg.h> 382 383 #ifdef HAVE_DIRENT_H 384 # include <dirent.h> 385 #else 386 # ifdef HAVE_NDIR_H 387 # include <ndir.h> 388 # else 389 # include <sys/dir.h> 390 # endif 391 # define dirent direct 392 #endif /* HAVE_DIRENT_H */ 393 #ifndef HAVE_STRUCT_DIRENT_D_INO 394 # define d_ino d_fileno 395 #endif 396 #if defined(hpux) || defined(sgi) || defined(OREO) 397 # include <stdio.h> /* So the fgetpwent() prototypes work */ 398 #endif /* hpux || sgi || OREO */ 399 #ifndef WINNT_NATIVE 400 #include <pwd.h> 401 #include <grp.h> 402 #endif /* WINNT_NATIVE */ 403 #ifdef HAVE_SHADOW_H 404 # include <shadow.h> 405 #endif /* HAVE_SHADOW_H */ 406 #ifdef HAVE_AUTH_H 407 # include <auth.h> 408 #endif /* HAVE_AUTH_H */ 409 #if defined(BSD) && !defined(POSIX) 410 # include <strings.h> 411 # define strchr(a, b) index(a, b) 412 # define strrchr(a, b) rindex(a, b) 413 #else 414 # include <string.h> 415 #endif /* BSD */ 416 417 /* 418 * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not 419 * include it yet, so we include it here 420 */ 421 #if defined(sgi) && SYSVREL > 3 422 # include <sys/cdefs.h> 423 #endif /* sgi && SYSVREL > 3 */ 424 425 #ifdef REMOTEHOST 426 # ifdef ISC 427 # undef MAXHOSTNAMELEN /* Busted headers? */ 428 # endif 429 430 # include <netinet/in.h> 431 # include <arpa/inet.h> 432 # include <sys/socket.h> 433 # if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) 434 # if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */ 435 # if !defined(sgi) 436 # define INET6 437 # endif /* sgi */ 438 # endif /* __APPLE__ */ 439 # endif 440 # include <sys/uio.h> /* For struct iovec */ 441 #endif /* REMOTEHOST */ 442 443 #ifdef PURIFY 444 /* exit normally, allowing purify to trace leaks */ 445 # define _exit exit 446 #endif /* !PURIFY */ 447 448 /* 449 * ASCII vs. EBCDIC 450 */ 451 #if 'Z' - 'A' == 25 452 # ifndef IS_ASCII 453 # define IS_ASCII 454 # endif 455 #endif 456 457 #include "sh.types.h" 458 459 #if !HAVE_DECL_GETPGRP 460 # ifndef GETPGRP_VOID 461 extern pid_t getpgrp (int); 462 # else 463 extern pid_t getpgrp (void); 464 # endif 465 #endif 466 467 #ifndef lint 468 typedef ptr_t memalign_t; 469 #else 470 typedef union { 471 char am_char, *am_char_p; 472 short am_short, *am_short_p; 473 int am_int, *am_int_p; 474 long am_long, *am_long_p; 475 float am_float, *am_float_p; 476 double am_double, *am_double_p; 477 } *memalign_t; 478 479 # define malloc lint_malloc 480 # define free lint_free 481 # define realloc lint_realloc 482 # define calloc lint_calloc 483 #endif 484 485 #ifdef SYSMALLOC 486 # define xmalloc(i) smalloc(i) 487 # define xrealloc(p, i) srealloc(p, i) 488 # define xcalloc(n, s) scalloc(n, s) 489 # define xfree sfree 490 #else 491 # define xmalloc(i) malloc(i) 492 # define xrealloc(p, i) realloc(p, i) 493 # define xcalloc(n, s) calloc(n, s) 494 # define xfree free 495 #endif /* SYSMALLOC */ 496 #include "sh.char.h" 497 #include "sh.err.h" 498 #include "sh.dir.h" 499 #include "sh.proc.h" 500 501 #include "pathnames.h" 502 503 504 /* 505 * C shell 506 * 507 * Bill Joy, UC Berkeley 508 * October, 1978; May 1980 509 * 510 * Jim Kulp, IIASA, Laxenburg Austria 511 * April, 1980 512 */ 513 514 #ifdef HESIOD 515 # include <hesiod.h> 516 #endif /* HESIOD */ 517 518 #ifdef REMOTEHOST 519 # include <netdb.h> 520 #endif /* REMOTEHOST */ 521 522 #ifndef MAXHOSTNAMELEN 523 # ifdef HOST_NAME_MAX 524 # define MAXHOSTNAMELEN (HOST_NAME_MAX + 1) 525 # elif defined(SCO) && (SYSVREL > 3) 526 # include <sys/socket.h> 527 # else 528 # define MAXHOSTNAMELEN 256 529 # endif 530 #endif /* MAXHOSTNAMELEN */ 531 532 533 534 #define eq(a, b) (Strcmp(a, b) == 0) 535 536 /* globone() flags */ 537 #define G_ERROR 0 /* default action: error if multiple words */ 538 #define G_IGNORE 1 /* ignore the rest of the words */ 539 #define G_APPEND 2 /* make a sentence by cat'ing the words */ 540 541 /* 542 * Global flags 543 */ 544 EXTERN int chkstop IZERO; /* Warned of stopped jobs... allow exit */ 545 546 #if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD) 547 # define CLOSE_ON_EXEC 548 #else 549 EXTERN int didcch IZERO; /* Have closed unused fd's for child */ 550 #endif /* (FIOCLEX && FIONCLEX) || F_SETFD */ 551 552 EXTERN int didfds IZERO; /* Have setup i/o fd's for child */ 553 EXTERN int doneinp IZERO; /* EOF indicator after reset from readc */ 554 EXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */ 555 EXTERN int child IZERO; /* Child shell ... errors cause exit */ 556 EXTERN int haderr IZERO; /* Reset was because of an error */ 557 EXTERN int intty IZERO; /* Input is a tty */ 558 EXTERN int intact IZERO; /* We are interactive... therefore prompt */ 559 EXTERN int justpr IZERO; /* Just print because of :p hist mod */ 560 EXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */ 561 EXTERN int neednote IZERO; /* Need to pnotify() */ 562 EXTERN int noexec IZERO; /* Don't execute, just syntax check */ 563 EXTERN int pjobs IZERO; /* want to print jobs if interrupted */ 564 EXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */ 565 EXTERN int handle_interrupt IZERO;/* Are we currently handling an interrupt? */ 566 EXTERN int havhash IZERO; /* path hashing is available */ 567 EXTERN int editing IZERO; /* doing filename expansion and line editing */ 568 EXTERN int noediting IZERO; /* initial $term defaulted to noedit */ 569 EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */ 570 EXTERN int anyerror IZERO; /* propagate errors from pipelines/backq */ 571 EXTERN int compat_expr IZERO;/* csh-style expressions? */ 572 EXTERN int isoutatty IZERO; /* is SHOUT a tty */ 573 EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */ 574 EXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */ 575 EXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */ 576 EXTERN int arun IZERO; /* Currently running multi-line-aliases */ 577 EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */ 578 EXTERN int cdtohome IZERO; /* cd without args goes home */ 579 EXTERN int inheredoc IZERO; /* Currently parsing a heredoc */ 580 /* We received a window change event */ 581 EXTERN volatile sig_atomic_t windowchg IZERO; 582 #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) 583 EXTERN int dspmbyte_ls; 584 #endif 585 586 /* 587 * Global i/o info 588 */ 589 EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */ 590 EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */ 591 extern Char *ffile; /* Name of shell file for $0 */ 592 extern int dolzero; /* if $?0 should return true... */ 593 594 extern char *seterr; /* Error message from scanner/parser */ 595 #ifndef errno 596 extern int errno; /* Error from C library routines */ 597 #endif 598 extern int exitset; 599 /* Temp name for << shell files in /tmp, for xfree() */ 600 EXTERN Char *shtemp IZERO; 601 602 #ifdef BSDTIMES 603 EXTERN struct timeval time0; /* Time at which the shell started */ 604 EXTERN struct sysrusage ru0; 605 #else 606 # ifdef _SEQUENT_ 607 EXTERN timeval_t time0; /* time at which shell started */ 608 EXTERN struct process_stats ru0; 609 # else /* _SEQUENT_ */ 610 # ifndef POSIX 611 EXTERN time_t time0; /* time at which shell started */ 612 # else /* POSIX */ 613 EXTERN clock_t time0; /* time at which shell started */ 614 EXTERN clock_t clk_tck; 615 # endif /* POSIX */ 616 EXTERN struct tms shtimes; /* shell and child times for process timing */ 617 # endif /* _SEQUENT_ */ 618 EXTERN time_t seconds0; 619 #endif /* BSDTIMES */ 620 621 #ifndef HZ 622 # define HZ 100 /* for division into seconds */ 623 #endif 624 625 /* 626 * Miscellany 627 */ 628 EXTERN Char *doldol; /* Character pid for $$ */ 629 EXTERN pid_t backpid; /* pid of the last background job */ 630 631 /* 632 * Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now 633 * cause pid's could be unsigned and that would break our -1 flag, and 634 * uid_t and gid_t are not defined in all the systems so I would have to 635 * make special cases for them. In the future... 636 */ 637 EXTERN uid_t uid, euid; /* Invokers real and effective */ 638 EXTERN gid_t gid, egid; /* User and group ids */ 639 EXTERN pid_t opgrp, /* Initial pgrp and tty pgrp */ 640 shpgrp, /* Pgrp of shell */ 641 tpgrp; /* Terminal process group */ 642 /* If tpgrp is -1, leave tty alone! */ 643 644 EXTERN Char *Prompt; /* The actual printed prompt or NULL */ 645 EXTERN Char *RPrompt; /* Right-hand side prompt or NULL */ 646 647 /* 648 * To be able to redirect i/o for builtins easily, the shell moves the i/o 649 * descriptors it uses away from 0,1,2. 650 * Ideally these should be in units which are closed across exec's 651 * (this saves work) but for version 6, this is not usually possible. 652 * The desired initial values for these descriptors are defined in 653 * sh.local.h. 654 */ 655 EXTERN int SHIN IZERO; /* Current shell input (script) */ 656 EXTERN int SHOUT IZERO; /* Shell output */ 657 EXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */ 658 EXTERN int OLDSTD IZERO; /* Old standard input (def for cmds) */ 659 660 661 #if (SYSVREL == 4 && defined(_UTS)) || defined(__linux__) 662 /* 663 * From: fadden@uts.amdahl.com (Andy McFadden) 664 * we need sigsetjmp for UTS4, but not UTS2.1 665 */ 666 # define SIGSETJMP 667 #endif 668 669 /* 670 * Error control 671 * 672 * Errors in scanning and parsing set up an error message to be printed 673 * at the end and complete. Other errors always cause a reset. 674 * Because of source commands and .cshrc we need nested error catches. 675 */ 676 677 #ifdef SIGSETJMP 678 typedef struct { sigjmp_buf j; } jmp_buf_t; 679 # define setexit() sigsetjmp(reslab.j, 1) 680 # define _reset() siglongjmp(reslab.j, 1) 681 #else 682 typedef struct { jmp_buf j; } jmp_buf_t; 683 # define setexit() setjmp(reslab.j) 684 # define _reset() longjmp(reslab.j, 1) 685 #endif 686 687 #define getexit(a) (void) ((a) = reslab) 688 #define resexit(a) (void) (reslab = (a)) 689 690 #define cpybin(a, b) (void) ((a) = (b)) 691 692 extern jmp_buf_t reslab; 693 694 EXTERN Char *gointr; /* Label for an onintr transfer */ 695 696 extern struct sigaction parintr; /* Parents interrupt catch */ 697 extern struct sigaction parterm; /* Parents terminate catch */ 698 699 /* 700 * Lexical definitions. 701 * 702 * All lexical space is allocated dynamically. 703 * The eighth/sixteenth bit of characters is used to prevent recognition, 704 * and eventually stripped. 705 */ 706 #define META 0200 707 #define ASCII 0177 708 #ifdef WIDE_STRINGS /* Implies SHORT_STRINGS */ 709 /* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */ 710 # define QUOTE 0x40000000 711 # define TRIM 0x3FFFFFFF /* Mask to strip quote bit */ 712 # define UNDER 0x08000000 /* Underline flag */ 713 # define BOLD 0x04000000 /* Bold flag */ 714 # define STANDOUT 0x02000000 /* Standout flag */ 715 # define LITERAL 0x01000000 /* Literal character flag */ 716 # define ATTRIBUTES 0x0F000000 /* The bits used for attributes */ 717 # define INVALID_BYTE 0x00800000 /* Invalid character on input */ 718 # ifdef SOLARIS2 719 # define CHAR 0x30FFFFFF /* Mask to mask out the character */ 720 # else 721 # define CHAR 0x00FFFFFF /* Mask to mask out the character */ 722 # endif 723 #elif defined (SHORT_STRINGS) 724 # define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */ 725 # define TRIM 0073777 /* Mask to strip quote/lit bit */ 726 # define UNDER 0040000 /* Underline flag */ 727 # define BOLD 0020000 /* Bold flag */ 728 # define STANDOUT 0010000 /* Standout flag */ 729 # define LITERAL 0004000 /* Literal character flag */ 730 # define ATTRIBUTES 0074000 /* The bits used for attributes */ 731 # define INVALID_BYTE 0 732 # define CHAR 0000377 /* Mask to mask out the character */ 733 #else 734 # define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */ 735 # define TRIM 0177 /* Mask to strip quote bit */ 736 # define UNDER 0000000 /* No extra bits to do both */ 737 # define BOLD 0000000 /* Bold flag */ 738 # define STANDOUT META /* Standout flag */ 739 # define LITERAL 0000000 /* Literal character flag */ 740 # define ATTRIBUTES 0200 /* The bits used for attributes */ 741 # define INVALID_BYTE 0 742 # define CHAR 0000177 /* Mask to mask out the character */ 743 #endif 744 #define CHAR_DBWIDTH (LITERAL|(LITERAL-1)) 745 746 EXTERN int AsciiOnly; /* If set only 7 bits expected in characters */ 747 748 /* 749 * Each level of input has a buffered input structure. 750 * There are one or more blocks of buffered input for each level, 751 * exactly one if the input is seekable and tell is available. 752 * In other cases, the shell buffers enough blocks to keep all loops 753 * in the buffer. 754 * 755 * If (WIDE_STRINGS && cantell), fbobp is always a byte offset, but 756 * (fseekp - fbobp) and (feobp - fbobp) are character offsets (usable for 757 * fbuf indexing). 758 * 759 * If (!cantell), all offsets are character offsets; if (!WIDE_STRINGS), there 760 * is no difference between byte and character offsets. 761 */ 762 EXTERN struct Bin { 763 off_t Bfseekp; /* Seek pointer, generally != lseek() value */ 764 off_t Bfbobp; /* Seekp of beginning of buffers */ 765 off_t Bfeobp; /* Seekp of end of buffers */ 766 int Bfblocks; /* Number of buffer blocks */ 767 Char **Bfbuf; /* The array of buffer blocks */ 768 #ifdef WIDE_STRINGS 769 /* Number of bytes in each character if (cantell) */ 770 unsigned char Bfclens[BUFSIZE + 1]; 771 #endif 772 } B; 773 774 /* 775 * This structure allows us to seek inside aliases 776 */ 777 struct Ain { 778 int type; 779 #define TCSH_I_SEEK 0 /* Invalid seek */ 780 #define TCSH_A_SEEK 1 /* Alias seek */ 781 #define TCSH_F_SEEK 2 /* File seek */ 782 #define TCSH_E_SEEK 3 /* Eval seek */ 783 union { 784 off_t _f_seek; /* A byte offset if (cantell) */ 785 Char* _c_seek; 786 } fc; 787 #define f_seek fc._f_seek 788 #define c_seek fc._c_seek 789 Char **a_seek; 790 } ; 791 792 extern int aret; /* Type of last char returned */ 793 #define SEEKEQ(a, b) ((a)->type == (b)->type && \ 794 (a)->f_seek == (b)->f_seek && \ 795 (a)->a_seek == (b)->a_seek) 796 797 #define fseekp B.Bfseekp 798 #define fbobp B.Bfbobp 799 #define feobp B.Bfeobp 800 #define fblocks B.Bfblocks 801 #define fbuf B.Bfbuf 802 #define fclens B.Bfclens 803 804 /* 805 * The shell finds commands in loops by reseeking the input 806 * For whiles, in particular, it reseeks to the beginning of the 807 * line the while was on; hence the while placement restrictions. 808 */ 809 EXTERN struct Ain lineloc; 810 811 EXTERN int cantell; /* Is current source tellable ? */ 812 813 /* 814 * Input lines are parsed into doubly linked circular 815 * lists of words of the following form. 816 */ 817 struct wordent { 818 Char *word; 819 struct wordent *prev; 820 struct wordent *next; 821 }; 822 823 /* 824 * During word building, both in the initial lexical phase and 825 * when expanding $ variable substitutions, expansion by `!' and `$' 826 * must be inhibited when reading ahead in routines which are themselves 827 * processing `!' and `$' expansion or after characters such as `\' or in 828 * quotations. The following flags are passed to the getC routines 829 * telling them which of these substitutions are appropriate for the 830 * next character to be returned. 831 */ 832 #define DODOL 1 833 #define DOEXCL 2 834 #define DOALL DODOL|DOEXCL 835 836 /* 837 * Labuf implements a general buffer for lookahead during lexical operations. 838 * Text which is to be placed in the input stream can be stuck here. 839 * We stick parsed ahead $ constructs during initial input, 840 * process id's from `$$', and modified variable values (from qualifiers 841 * during expansion in sh.dol.c) here. 842 */ 843 extern struct Strbuf labuf; 844 EXTERN size_t lap; /* N/A if == labuf.len, index into labuf.s otherwise */ 845 846 /* 847 * Parser structure 848 * 849 * Each command is parsed to a tree of command structures and 850 * flags are set bottom up during this process, to be propagated down 851 * as needed during the semantics/exeuction pass (sh.sem.c). 852 */ 853 struct command { 854 unsigned char t_dtyp; /* Type of node */ 855 #define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */ 856 #define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */ 857 #define NODE_PIPE 3 /* t_dlef | t_drit */ 858 #define NODE_LIST 4 /* t_dlef ; t_drit */ 859 #define NODE_OR 5 /* t_dlef || t_drit */ 860 #define NODE_AND 6 /* t_dlef && t_drit */ 861 unsigned char t_nice; /* Nice value */ 862 #ifdef apollo 863 unsigned char t_systype; /* System environment */ 864 #endif 865 unsigned long t_dflg; /* Flags, e.g. F_AMPERSAND|... */ 866 /* save these when re-doing */ 867 #ifndef apollo 868 #define F_SAVE (F_NICE|F_TIME|F_NOHUP|F_HUP) 869 #else 870 #define F_SAVE (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER) 871 #endif 872 #define F_AMPERSAND (1<<0) /* executes in background */ 873 #define F_APPEND (1<<1) /* output is redirected >> */ 874 #define F_PIPEIN (1<<2) /* input is a pipe */ 875 #define F_PIPEOUT (1<<3) /* output is a pipe */ 876 #define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */ 877 #define F_NOINTERRUPT (1<<5) /* should be immune from intr's */ 878 /* spare */ 879 #define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */ 880 #define F_OVERWRITE (1<<8) /* output was ! */ 881 #define F_READ (1<<9) /* input redirection is << */ 882 #define F_REPEAT (1<<10) /* reexec aft if, repeat,... */ 883 #define F_NICE (1<<11) /* t_nice is meaningful */ 884 #define F_NOHUP (1<<12) /* nohup this command */ 885 #define F_TIME (1<<13) /* time this command */ 886 #define F_BACKQ (1<<14) /* command is in `` */ 887 #define F_HUP (1<<15) /* hup this command */ 888 #ifdef apollo 889 #define F_VER (1<<16) /* execute command under SYSTYPE */ 890 #endif 891 union { 892 Char *T_dlef; /* Input redirect word */ 893 struct command *T_dcar; /* Left part of list/pipe */ 894 } L; 895 union { 896 Char *T_drit; /* Output redirect word */ 897 struct command *T_dcdr; /* Right part of list/pipe */ 898 } R; 899 #define t_dlef L.T_dlef 900 #define t_dcar L.T_dcar 901 #define t_drit R.T_drit 902 #define t_dcdr R.T_dcdr 903 Char **t_dcom; /* Command/argument vector */ 904 struct command *t_dspr; /* Pointer to ()'d subtree */ 905 }; 906 907 908 /* 909 * The keywords for the parser 910 */ 911 #define TC_BREAK 0 912 #define TC_BRKSW 1 913 #define TC_CASE 2 914 #define TC_DEFAULT 3 915 #define TC_ELSE 4 916 #define TC_END 5 917 #define TC_ENDIF 6 918 #define TC_ENDSW 7 919 #define TC_EXIT 8 920 #define TC_FOREACH 9 921 #define TC_GOTO 10 922 #define TC_IF 11 923 #define TC_LABEL 12 924 #define TC_LET 13 925 #define TC_SET 14 926 #define TC_SWITCH 15 927 #define TC_TEST 16 928 #define TC_THEN 17 929 #define TC_WHILE 18 930 931 /* 932 * These are declared here because they want to be 933 * initialized in sh.init.c (to allow them to be made readonly) 934 */ 935 936 #if defined(hpux) && defined(__STDC__) && !defined(__GNUC__) 937 /* Avoid hpux ansi mode spurious warnings */ 938 typedef void (*bfunc_t) (); 939 #else 940 typedef void (*bfunc_t) (Char **, struct command *); 941 #endif /* hpux && __STDC__ && !__GNUC__ */ 942 943 extern const struct biltins { 944 const char *bname; 945 bfunc_t bfunct; 946 int minargs, maxargs; 947 } bfunc[]; 948 extern int nbfunc; 949 #ifdef WINNT_NATIVE 950 extern struct biltins nt_bfunc[]; 951 extern int nt_nbfunc; 952 #endif /* WINNT_NATIVE*/ 953 extern int bequiet; 954 955 extern struct srch { 956 const char *s_name; 957 int s_value; 958 } srchn[]; 959 extern int nsrchn; 960 961 /* 962 * Structure defining the existing while/foreach loops at this 963 * source level. Loops are implemented by seeking back in the 964 * input. For foreach (fe), the word list is attached here. 965 */ 966 EXTERN struct whyle { 967 struct Ain w_start; /* Point to restart loop */ 968 struct Ain w_end; /* End of loop (0 if unknown) */ 969 Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */ 970 Char *w_fename; /* Name for fe */ 971 struct whyle *w_next; /* Next (more outer) loop */ 972 } *whyles; 973 974 /* 975 * Variable structure 976 * 977 * Aliases and variables are stored in AVL balanced binary trees. 978 */ 979 EXTERN struct varent { 980 Char **vec; /* Array of words which is the value */ 981 Char *v_name; /* Name of variable/alias */ 982 int v_flags; /* Flags */ 983 #define VAR_ALL -1 984 #define VAR_READONLY 1 985 #define VAR_READWRITE 2 986 #define VAR_NOGLOB 4 987 #define VAR_FIRST 32 988 #define VAR_LAST 64 989 struct varent *v_link[3]; /* The links, see below */ 990 int v_bal; /* Balance factor */ 991 } shvhed IZERO_STRUCT, aliases IZERO_STRUCT; 992 993 #define v_left v_link[0] 994 #define v_right v_link[1] 995 #define v_parent v_link[2] 996 997 #define adrof(v) adrof1(v, &shvhed) 998 #define varval(v) value1(v, &shvhed) 999 1000 /* 1001 * The following are for interfacing redo substitution in 1002 * aliases to the lexical routines. 1003 */ 1004 EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */ 1005 EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */ 1006 EXTERN Char **alvec IZERO_STRUCT, 1007 *alvecp IZERO_STRUCT;/* The (remnants of) alias vector */ 1008 1009 /* 1010 * Filename/command name expansion variables 1011 */ 1012 1013 #ifndef MAXPATHLEN 1014 # ifdef PATH_MAX 1015 # define MAXPATHLEN PATH_MAX 1016 # else 1017 # define MAXPATHLEN 2048 1018 # endif 1019 #endif /* MAXPATHLEN */ 1020 1021 #ifndef HAVENOLIMIT 1022 /* 1023 * resource limits 1024 */ 1025 extern struct limits { 1026 int limconst; 1027 const char *limname; 1028 int limdiv; 1029 const char *limscale; 1030 } limits[]; 1031 #endif /* !HAVENOLIMIT */ 1032 1033 /* 1034 * History list 1035 * 1036 * Each history list entry contains an embedded wordlist 1037 * from the scanner, a number for the event, and a reference count 1038 * to aid in discarding old entries. 1039 * 1040 * Essentially "invisible" entries are put on the history list 1041 * when history substitution includes modifiers, and thrown away 1042 * at the next discarding since their event numbers are very negative. 1043 */ 1044 EXTERN struct Hist { 1045 struct wordent Hlex; 1046 int Hnum; /* eventno when inserted into history list */ 1047 int Href; 1048 time_t Htime; 1049 Char *histline; 1050 struct Hist *Hnext, *Hprev; /* doubly linked list */ 1051 unsigned Hhash; /* hash value of command line */ 1052 } Histlist IZERO_STRUCT; 1053 1054 extern struct wordent paraml; /* Current lexical word list */ 1055 EXTERN int eventno; /* Next events number */ 1056 EXTERN int lastev; /* Last event reference (default) */ 1057 1058 EXTERN Char HIST; /* history invocation character */ 1059 EXTERN Char HISTSUB; /* auto-substitute character */ 1060 EXTERN Char PRCH; /* Prompt symbol for regular users */ 1061 EXTERN Char PRCHROOT; /* Prompt symbol for root */ 1062 1063 /* 1064 * For operating systems with single case filenames (OS/2) 1065 */ 1066 #ifdef CASE_INSENSITIVE 1067 # ifdef WIDE_STRINGS 1068 # define samecase(x) (towlower(x)) 1069 # else 1070 # define samecase(x) (isupper((unsigned char)(x)) ? \ 1071 tolower((unsigned char)(x)) : (x)) 1072 # endif 1073 #else 1074 # define samecase(x) (x) 1075 #endif /* CASE_INSENSITIVE */ 1076 1077 /* 1078 * strings.h: 1079 */ 1080 #ifndef SHORT_STRINGS 1081 #define Strchr(a, b) strchr(a, b) 1082 #define Strrchr(a, b) strrchr(a, b) 1083 #define Strcat(a, b) strcat(a, b) 1084 #define Strncat(a, b, c) strncat(a, b, c) 1085 #define Strcpy(a, b) strcpy(a, b) 1086 #define Strncpy(a, b, c) strncpy(a, b, c) 1087 #define Strlen(a) strlen(a) 1088 #define Strcmp(a, b) strcmp(a, b) 1089 #define Strncmp(a, b, c) strncmp(a, b, c) 1090 #define Strcasecmp(a, b) strcasecmp(a, b) 1091 1092 #define Strspl(a, b) strspl(a, b) 1093 #define Strnsave(a, b) strnsave(a, b) 1094 #define Strsave(a) strsave(a) 1095 #define Strend(a) strend(a) 1096 #define Strstr(a, b) strstr(a, b) 1097 1098 #define str2short(a) (a) 1099 #define blk2short(a) saveblk(a) 1100 #define short2blk(a) saveblk(a) 1101 #define short2str(a) caching_strip(a) 1102 #else 1103 #if defined(WIDE_STRINGS) && !defined(UTF16_STRINGS) 1104 #define Strchr(a, b) wcschr(a, b) 1105 #define Strrchr(a, b) wcsrchr(a, b) 1106 #define Strcat(a, b) wcscat(a, b) 1107 #define Strncat(a, b, c) wcsncat(a, b, c) 1108 #define Strcpy(a, b) wcscpy(a, b) 1109 #define Strncpy(a, b, c) wcsncpy(a, b, c) 1110 #define Strlen(a) wcslen(a) 1111 #define Strcmp(a, b) wcscmp(a, b) 1112 #define Strncmp(a, b, c) wcsncmp(a, b, c) 1113 #else 1114 #define Strchr(a, b) s_strchr(a, b) 1115 #define Strrchr(a, b) s_strrchr(a, b) 1116 #define Strcat(a, b) s_strcat(a, b) 1117 #define Strncat(a, b, c) s_strncat(a, b, c) 1118 #define Strcpy(a, b) s_strcpy(a, b) 1119 #define Strncpy(a, b, c) s_strncpy(a, b, c) 1120 #define Strlen(a) s_strlen(a) 1121 #define Strcmp(a, b) s_strcmp(a, b) 1122 #define Strncmp(a, b, c) s_strncmp(a, b, c) 1123 #endif 1124 #define Strcasecmp(a, b) s_strcasecmp(a, b) 1125 1126 #define Strspl(a, b) s_strspl(a, b) 1127 #define Strnsave(a, b) s_strnsave(a, b) 1128 #define Strsave(a) s_strsave(a) 1129 #define Strend(a) s_strend(a) 1130 #define Strstr(a, b) s_strstr(a, b) 1131 #endif 1132 1133 /* 1134 * setname is a macro to save space (see sh.err.c) 1135 */ 1136 EXTERN const char *bname; 1137 1138 #define setname(a) (bname = (a)) 1139 1140 #ifdef VFORK 1141 EXTERN Char *Vsav; 1142 EXTERN Char *Vdp; 1143 EXTERN Char *Vexpath; 1144 EXTERN char **Vt; 1145 #endif /* VFORK */ 1146 1147 EXTERN Char **evalvec; 1148 EXTERN Char *evalp; 1149 1150 extern struct mesg { 1151 const char *iname; /* name from /usr/include */ 1152 const char *pname; /* print name */ 1153 } mesg[]; 1154 1155 /* word_chars is set by default to WORD_CHARS but can be overridden by 1156 the worchars variable--if unset, reverts to WORD_CHARS */ 1157 1158 EXTERN Char *word_chars; 1159 1160 #define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ 1161 1162 EXTERN Char *STR_SHELLPATH; 1163 1164 #ifdef _PATH_BSHELL 1165 EXTERN Char *STR_BSHELL; 1166 #endif 1167 EXTERN Char *STR_WORD_CHARS; 1168 EXTERN Char **STR_environ IZERO; 1169 1170 extern int dont_free; /* Tell free that we are in danger if we free */ 1171 1172 extern Char *INVPTR; 1173 extern Char **INVPPTR; 1174 1175 extern char *progname; 1176 extern int tcsh; 1177 extern int xlate_cr; 1178 extern int output_raw; 1179 extern int lbuffed; 1180 extern time_t Htime; 1181 extern int numeof; 1182 extern int insource; 1183 extern char linbuf[]; 1184 extern char *linp; 1185 extern int nsig; 1186 #ifdef VFORK 1187 extern int use_fork; 1188 #endif 1189 extern int tellwhat; 1190 extern int NoNLSRebind; 1191 #if !HAVE_DECL_ENVIRON 1192 extern char **environ; 1193 #endif 1194 1195 #include "tc.h" 1196 1197 #ifndef WINNT_NATIVE 1198 # ifdef NLS_CATALOGS 1199 # ifdef HAVE_FEATURES_H 1200 # include <features.h> 1201 # endif 1202 # ifdef HAVE_NL_LANGINFO 1203 # include <langinfo.h> 1204 # endif 1205 # ifdef __uxps__ 1206 # define gettxt gettxt_ds 1207 # endif 1208 # include <nl_types.h> 1209 # ifdef __uxps__ 1210 # undef gettxt 1211 # endif 1212 EXTERN nl_catd catd; 1213 # if defined(HAVE_ICONV) && defined(HAVE_NL_LANGINFO) 1214 # define CGETS(b, c, d) iconv_catgets(catd, b, c, d) 1215 # else 1216 # define CGETS(b, c, d) xcatgets(catd, b, c, d) 1217 # endif 1218 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1219 # else 1220 # define CGETS(b, c, d) d 1221 # define CSAVS(b, c, d) d 1222 # endif 1223 #else /* WINNT_NATIVE */ 1224 # define CGETS(b, c, d) nt_cgets( b, c, d) 1225 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1226 #endif /* WINNT_NATIVE */ 1227 1228 #if defined(FILEC) 1229 extern int filec; 1230 #endif /* FILEC */ 1231 1232 #include "sh.decls.h" 1233 /* 1234 * Since on some machines characters are unsigned, and the signed 1235 * keyword is not universally implemented, we treat all characters 1236 * as unsigned and sign extend them where we need. 1237 */ 1238 #define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a)) 1239 1240 /* 1241 * explanation for use by the "--help" option 1242 */ 1243 #define HELP_STRING "\ 1244 -b file batch mode, read and execute commands from `file' \n\ 1245 -c command run `command' from next argument \n\ 1246 -d load directory stack from `~/.cshdirs' \n\ 1247 -Dname[=value] define environment variable `name' to `value' (DomainOS only) \n\ 1248 -e exit on any error \n\ 1249 -f start faster by ignoring the start-up file \n\ 1250 -F use fork() instead of vfork() when spawning (ConvexOS only) \n\ 1251 -i interactive, even when input is not from a terminal \n\ 1252 -l act as a login shell, must be the only option specified \n\ 1253 -m load the start-up file, whether or not owned by effective user \n\ 1254 -n file no execute mode, just check syntax of the following `file' \n\ 1255 -q accept SIGQUIT for running under a debugger \n\ 1256 -s read commands from standard input \n\ 1257 -t read one line from standard input \n\ 1258 -v echo commands after history substitution \n\ 1259 -V like -v but including commands read from the start-up file \n\ 1260 -x echo commands immediately before execution \n\ 1261 -X like -x but including commands read from the start-up file \n\ 1262 --help print this message and exit \n\ 1263 --version print the version shell variable and exit \n\ 1264 \nSee the tcsh(1) manual page for detailed information.\n" 1265 1266 #include "tc.nls.h" 1267 1268 #endif /* _h_sh */ 1269