1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.h,v 3.165 2011/04/14 18:25:25 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 /* 37 * All xprintf with %S emit error because Char* used instead of wchar_t* 38 * WARNS doesn't help, and CFLAGS is added before -Werror, so use a 39 * pragma to turn off the format check. 40 */ 41 #pragma GCC diagnostic ignored "-Wformat" 42 43 #include "config.h" 44 45 #include <stddef.h> 46 #include <signal.h> 47 48 #ifdef HAVE_ICONV 49 # include <iconv.h> 50 #endif 51 52 #ifdef HAVE_STDINT_H 53 # include <stdint.h> 54 #endif 55 56 #ifdef HAVE_INTTYPES_H 57 # include <inttypes.h> 58 #endif 59 60 #if !defined(HAVE_STDINT_H) && !defined(HAVE_INTTYPES_H) && !defined(WINNT_NATIVE) 61 typedef unsigned long intptr_t; 62 #endif 63 64 #ifndef EXTERN 65 # define EXTERN extern 66 #else /* !EXTERN */ 67 # ifdef WINNT_NATIVE 68 # define IZERO = 0 69 # define IZERO_STRUCT = {0} 70 # endif /* WINNT_NATIVE */ 71 #endif /* EXTERN */ 72 73 #ifndef IZERO 74 # define IZERO 75 #endif /* IZERO */ 76 #ifndef IZERO_STRUCT 77 # define IZERO_STRUCT 78 #endif /* IZERO_STRUCT */ 79 80 #ifndef WINNT_NATIVE 81 # define INIT_ZERO 82 # define INIT_ZERO_STRUCT 83 # define force_read xread 84 #endif /*!WINNT_NATIVE */ 85 86 #if defined(KANJI) && defined(WIDE_STRINGS) && defined(HAVE_NL_LANGINFO) && defined(CODESET) 87 #define AUTOSET_KANJI 88 #endif 89 /* 90 * Sanity 91 */ 92 #if defined(_POSIX_SOURCE) && !defined(POSIX) 93 # define POSIX 94 #endif 95 96 #if defined(POSIXJOBS) && !defined(BSDJOBS) 97 # define BSDJOBS 98 #endif 99 100 #define TMP_TEMPLATE ".XXXXXX" 101 102 #ifdef SHORT_STRINGS 103 # ifdef WIDE_STRINGS 104 #include <wchar.h> 105 # ifdef UTF16_STRINGS 106 typedef wint_t Char; 107 # else 108 typedef wchar_t Char; 109 #endif 110 typedef unsigned long uChar; 111 typedef wint_t eChar; /* Can contain any Char value or CHAR_ERR */ 112 #define CHAR_ERR WEOF /* Pretty please, use bit 31... */ 113 #define normal_mbtowc(PWC, S, N) rt_mbtowc(PWC, S, N) 114 #define reset_mbtowc() TCSH_IGNORE(mbtowc(NULL, NULL, 0)) 115 # else 116 typedef short Char; 117 typedef unsigned short uChar; 118 typedef int eChar; 119 #define CHAR_ERR (-1) 120 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 121 #define reset_mbtowc() ((void)0) 122 # endif 123 # define SAVE(a) (Strsave(str2short(a))) 124 #else 125 typedef char Char; 126 typedef unsigned char uChar; 127 typedef int eChar; 128 #define CHAR_ERR (-1) 129 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 130 #define reset_mbtowc() ((void)0) 131 # define SAVE(a) (strsave(a)) 132 #endif 133 134 #if !defined(__inline) && !defined(__GNUC__) && !defined(_MSC_VER) 135 #define __inline 136 #endif 137 /* Elide unused argument warnings */ 138 #define USE(a) (void) (a) 139 #define TCSH_IGNORE(a) tcsh_ignore((intptr_t)a) 140 static __inline void tcsh_ignore(intptr_t a) 141 { 142 USE(a); 143 } 144 145 /* 146 * Return true if the path is absolute 147 */ 148 #if defined(WINNT_NATIVE) 149 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 150 (Isalpha((p)[0]) && (p)[1] == ':')) 151 #elif defined(__CYGWIN__) 152 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 153 (Isalpha((p)[0]) && (p)[1] == ':' && \ 154 ((p)[2] == '\0' || (p)[2] == '/'))) 155 #else /* !WINNT_NATIVE && !__CYGWIN__ */ 156 # define ABSOLUTEP(p) (*(p) == '/') 157 #endif /* WINNT_NATIVE || __CYGWIN__ */ 158 159 /* 160 * Fundamental definitions which may vary from system to system. 161 * 162 * BUFSIZE The i/o buffering size; also limits word size 163 * MAILINTVL How often to mailcheck; more often is more expensive 164 */ 165 #ifdef BUFSIZE 166 # if BUFSIZE < 4096 167 # undef BUFSIZE 168 # define BUFSIZE 4096 /* buffer size should be no less than this */ 169 # endif 170 #else 171 # define BUFSIZE 4096 172 #endif /* BUFSIZE */ 173 174 #define FORKSLEEP 10 /* delay loop on non-interactive fork failure */ 175 #define MAILINTVL 600 /* 10 minutes */ 176 177 #ifndef INBUFSIZE 178 # define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */ 179 #endif /* INBUFSIZE */ 180 181 182 /* 183 * What our builtin echo looks like 184 */ 185 #define NONE_ECHO 0 186 #define BSD_ECHO 1 187 #define SYSV_ECHO 2 188 #define BOTH_ECHO (BSD_ECHO|SYSV_ECHO) 189 190 #ifndef ECHO_STYLE 191 # if SYSVREL > 0 192 # define ECHO_STYLE SYSV_ECHO 193 # else /* SYSVREL == 0 */ 194 # define ECHO_STYLE BSD_ECHO 195 # endif /* SYSVREL */ 196 #endif /* ECHO_STYLE */ 197 198 /* 199 * The shell moves std in/out/diag and the old std input away from units 200 * 0, 1, and 2 so that it is easy to set up these standards for invoked 201 * commands. 202 */ 203 #define FSAFE 5 /* We keep the first 5 descriptors untouched */ 204 #define FSHTTY 15 /* /dev/tty when manip pgrps */ 205 #define FSHIN 16 /* Preferred desc for shell input */ 206 #define FSHOUT 17 /* ... shell output */ 207 #define FSHDIAG 18 /* ... shell diagnostics */ 208 #define FOLDSTD 19 /* ... old std input */ 209 210 #ifdef PROF 211 #define xexit(n) done(n) 212 #endif 213 214 #ifdef cray 215 # define word word_t /* sys/types.h defines word.. bad move! */ 216 #endif 217 218 #include <sys/types.h> 219 220 #ifdef cray 221 # undef word 222 #endif 223 224 /* 225 * Path separator in environment variables 226 */ 227 #ifndef PATHSEP 228 # if defined(__EMX__) || defined(WINNT_NATIVE) 229 # define PATHSEP ';' 230 # else /* unix */ 231 # define PATHSEP ':' 232 # endif /* __EMX__ || WINNT_NATIVE */ 233 #endif /* !PATHSEP */ 234 235 #if defined(__HP_CXD_SPP) && !defined(__hpux) 236 # include <sys/cnx_stat.h> 237 # define stat stat64 238 # define fstat fstat64 239 # define lstat lstat64 240 #endif /* __HP_CXD_SPP && !__hpux */ 241 242 #ifdef HAVE_LONG_LONG 243 typedef long long tcsh_number_t; 244 #else 245 typedef long tcsh_number_t; 246 #endif 247 /* 248 * This macro compares the st_dev field of struct stat. On aix on ibmESA 249 * st_dev is a structure, so comparison does not work. 250 */ 251 #ifndef DEV_DEV_COMPARE 252 # define DEV_DEV_COMPARE(x,y) ((x) == (y)) 253 #endif /* DEV_DEV_COMPARE */ 254 255 #ifdef _SEQUENT_ 256 # include <sys/procstats.h> 257 #endif /* _SEQUENT_ */ 258 #if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE) 259 # include <sys/times.h> 260 #endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */ 261 262 #ifdef NLS 263 # include <locale.h> 264 #endif /* NLS */ 265 266 #if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__) 267 # include <sys/param.h> 268 #endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */ 269 #include <sys/stat.h> 270 271 #if defined(BSDTIMES) || defined(BSDLIMIT) 272 # include <sys/time.h> 273 # if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__) 274 # include "/usr/ucbinclude/sys/resource.h" 275 # else 276 # ifdef convex 277 # define sysrusage cvxrusage 278 # include <sys/sysinfo.h> 279 # else 280 # define sysrusage rusage 281 # include <sys/resource.h> 282 # endif /* convex */ 283 # endif /* SYSVREL>3 */ 284 #endif /* BSDTIMES */ 285 286 #ifndef WINNT_NATIVE 287 # ifndef POSIX 288 # ifdef TERMIO 289 # include <termio.h> 290 # else /* SGTTY */ 291 # include <sgtty.h> 292 # endif /* TERMIO */ 293 # else /* POSIX */ 294 # ifndef _UWIN 295 # include <termios.h> 296 # else 297 # include <termio.h> 298 # endif /* _UWIN */ 299 # if SYSVREL > 3 || defined(__linux__) 300 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 301 # undef TIOCSLTC 302 # undef CSWTCH 303 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 304 # endif /* SYSVREL > 3 */ 305 # endif /* POSIX */ 306 #endif /* WINNT_NATIVE */ 307 308 #ifdef sonyrisc 309 # include <sys/ttold.h> 310 #endif /* sonyrisc */ 311 312 #if defined(POSIX) && !defined(WINNT_NATIVE) 313 # include <unistd.h> 314 315 /* 316 * the gcc+protoize version of <stdlib.h> 317 * redefines malloc(), so we define the following 318 * to avoid it. 319 */ 320 # if defined(SYSMALLOC) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX) 321 # define NO_FIX_MALLOC 322 # include <stdlib.h> 323 # else /* glibc */ 324 # define _GNU_STDLIB_H 325 # define malloc __malloc 326 # define free __free 327 # define calloc __calloc 328 # define realloc __realloc 329 # include <stdlib.h> 330 # undef malloc 331 # undef free 332 # undef calloc 333 # undef realloc 334 # endif /* glibc || sgi */ 335 #endif /* POSIX && !WINNT_NATIVE */ 336 #include <limits.h> 337 338 #if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) 339 # if !defined(pyr) && !defined(stellar) 340 # include <time.h> 341 # ifdef _MINIX 342 # define HZ CLOCKS_PER_SEC 343 # endif /* _MINIX */ 344 # endif /* !pyr && !stellar */ 345 #endif /* SYSVREL > 0 || _IBMR2 */ 346 347 /* In the following ifdef the DECOSF1 has been commented so that later 348 * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions... 349 */ 350 #if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO)) 351 # if !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) 352 # include <sys/ioctl.h> 353 # if SYSVREL > 3 || defined(__linux__) 354 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 355 # undef TIOCSLTC 356 # undef CSWTCH 357 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 358 # endif /* SYSVREL > 3 */ 359 # endif 360 #endif 361 362 #if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX) 363 #undef CSWTCH 364 #define CSWTCH _POSIX_VDISABLE 365 #endif 366 367 #if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__) 368 # include <sys/filio.h> 369 #endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */ 370 371 #if !defined(_MINIX) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D) 372 # include <sys/file.h> 373 #endif /* !_MINIX && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */ 374 375 #if !defined(O_RDONLY) || !defined(O_NDELAY) 376 # include <fcntl.h> 377 #endif 378 379 #include <errno.h> 380 381 #include <setjmp.h> 382 383 #include <stdarg.h> 384 385 #ifdef HAVE_DIRENT_H 386 # include <dirent.h> 387 #else 388 # ifdef HAVE_NDIR_H 389 # include <ndir.h> 390 # else 391 # include <sys/dir.h> 392 # endif 393 # define dirent direct 394 #endif /* HAVE_DIRENT_H */ 395 #ifndef HAVE_STRUCT_DIRENT_D_INO 396 # define d_ino d_fileno 397 #endif 398 #if defined(hpux) || defined(sgi) || defined(OREO) 399 # include <stdio.h> /* So the fgetpwent() prototypes work */ 400 #endif /* hpux || sgi || OREO */ 401 #ifndef WINNT_NATIVE 402 #include <pwd.h> 403 #include <grp.h> 404 #endif /* WINNT_NATIVE */ 405 #ifdef HAVE_SHADOW_H 406 # include <shadow.h> 407 #endif /* HAVE_SHADOW_H */ 408 #ifdef HAVE_AUTH_H 409 # include <auth.h> 410 #endif /* HAVE_AUTH_H */ 411 #if defined(BSD) && !defined(POSIX) 412 # include <strings.h> 413 # define strchr(a, b) index(a, b) 414 # define strrchr(a, b) rindex(a, b) 415 #else 416 # include <string.h> 417 #endif /* BSD */ 418 419 /* 420 * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not 421 * include it yet, so we include it here 422 */ 423 #if defined(sgi) && SYSVREL > 3 424 # include <sys/cdefs.h> 425 #endif /* sgi && SYSVREL > 3 */ 426 427 #ifdef REMOTEHOST 428 # ifdef ISC 429 # undef MAXHOSTNAMELEN /* Busted headers? */ 430 # endif 431 432 # include <netinet/in.h> 433 # include <arpa/inet.h> 434 # include <sys/socket.h> 435 # if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) 436 # if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */ 437 # if !defined(sgi) 438 # if !defined(__CYGWIN__) 439 # define INET6 440 # endif /* __CYGWIN__ */ 441 # endif /* sgi */ 442 # endif /* __APPLE__ */ 443 # endif 444 # include <sys/uio.h> /* For struct iovec */ 445 #endif /* REMOTEHOST */ 446 447 #ifdef PURIFY 448 /* exit normally, allowing purify to trace leaks */ 449 # define _exit exit 450 typedef int pret_t; 451 #else /* !PURIFY */ 452 /* 453 * If your compiler complains, then you can either 454 * throw it away and get gcc or, use the following define 455 * and get rid of the typedef. 456 * [The 4.2/3BSD vax compiler does not like that] 457 * Both MULTIFLOW and PCC compilers exhbit this bug. -- sterling@netcom.com 458 */ 459 # if (defined(vax) || defined(uts) || defined(MULTIFLOW) || defined(PCC)) && !defined(__GNUC__) 460 # define pret_t void 461 # else /* !((vax || uts || MULTIFLOW || PCC) && !__GNUC__) */ 462 typedef void pret_t; 463 # endif /* (vax || uts || MULTIFLOW || PCC) && !__GNUC__ */ 464 #endif /* PURIFY */ 465 466 /* 467 * ASCII vs. EBCDIC 468 */ 469 #if 'Z' - 'A' == 25 470 # ifndef IS_ASCII 471 # define IS_ASCII 472 # endif 473 #endif 474 475 #include "sh.types.h" 476 477 #if !HAVE_DECL_GETPGRP 478 # ifndef GETPGRP_VOID 479 extern pid_t getpgrp (int); 480 # else 481 extern pid_t getpgrp (void); 482 # endif 483 #endif 484 485 #ifndef lint 486 typedef ptr_t memalign_t; 487 #else 488 typedef union { 489 char am_char, *am_char_p; 490 short am_short, *am_short_p; 491 int am_int, *am_int_p; 492 long am_long, *am_long_p; 493 float am_float, *am_float_p; 494 double am_double, *am_double_p; 495 } *memalign_t; 496 497 # define malloc lint_malloc 498 # define free lint_free 499 # define realloc lint_realloc 500 # define calloc lint_calloc 501 #endif 502 503 #ifdef SYSMALLOC 504 # define xmalloc(i) smalloc(i) 505 # define xrealloc(p, i) srealloc(p, i) 506 # define xcalloc(n, s) scalloc(n, s) 507 # define xfree sfree 508 #else 509 # define xmalloc(i) malloc(i) 510 # define xrealloc(p, i) realloc(p, i) 511 # define xcalloc(n, s) calloc(n, s) 512 # define xfree free 513 #endif /* SYSMALLOC */ 514 #include "sh.char.h" 515 #include "sh.err.h" 516 #include "sh.dir.h" 517 #include "sh.proc.h" 518 519 #include "pathnames.h" 520 521 522 /* 523 * C shell 524 * 525 * Bill Joy, UC Berkeley 526 * October, 1978; May 1980 527 * 528 * Jim Kulp, IIASA, Laxenburg Austria 529 * April, 1980 530 */ 531 532 #ifdef HESIOD 533 # include <hesiod.h> 534 #endif /* HESIOD */ 535 536 #ifdef REMOTEHOST 537 # include <netdb.h> 538 #endif /* REMOTEHOST */ 539 540 #ifndef MAXHOSTNAMELEN 541 # ifdef HOST_NAME_MAX 542 # define MAXHOSTNAMELEN (HOST_NAME_MAX + 1) 543 # elif defined(SCO) && (SYSVREL > 3) 544 # include <sys/socket.h> 545 # else 546 # define MAXHOSTNAMELEN 256 547 # endif 548 #endif /* MAXHOSTNAMELEN */ 549 550 551 552 #define eq(a, b) (Strcmp(a, b) == 0) 553 554 /* globone() flags */ 555 #define G_ERROR 0 /* default action: error if multiple words */ 556 #define G_IGNORE 1 /* ignore the rest of the words */ 557 #define G_APPEND 2 /* make a sentence by cat'ing the words */ 558 559 /* 560 * Global flags 561 */ 562 EXTERN int chkstop IZERO; /* Warned of stopped jobs... allow exit */ 563 564 #if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD) 565 # define CLOSE_ON_EXEC 566 #else 567 EXTERN int didcch IZERO; /* Have closed unused fd's for child */ 568 #endif /* (FIOCLEX && FIONCLEX) || F_SETFD */ 569 570 EXTERN int didfds IZERO; /* Have setup i/o fd's for child */ 571 EXTERN int doneinp IZERO; /* EOF indicator after reset from readc */ 572 EXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */ 573 EXTERN int child IZERO; /* Child shell ... errors cause exit */ 574 EXTERN int haderr IZERO; /* Reset was because of an error */ 575 EXTERN int intty IZERO; /* Input is a tty */ 576 EXTERN int intact IZERO; /* We are interactive... therefore prompt */ 577 EXTERN int justpr IZERO; /* Just print because of :p hist mod */ 578 EXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */ 579 EXTERN int neednote IZERO; /* Need to pnotify() */ 580 EXTERN int noexec IZERO; /* Don't execute, just syntax check */ 581 EXTERN int pjobs IZERO; /* want to print jobs if interrupted */ 582 EXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */ 583 EXTERN int handle_intr IZERO;/* Are we currently handling an interrupt? */ 584 EXTERN int havhash IZERO; /* path hashing is available */ 585 EXTERN int editing IZERO; /* doing filename expansion and line editing */ 586 EXTERN int noediting IZERO; /* initial $term defaulted to noedit */ 587 EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */ 588 EXTERN int anyerror IZERO; /* propagate errors from pipelines/backq */ 589 EXTERN int compat_expr IZERO;/* csh-style expressions? */ 590 EXTERN int isoutatty IZERO; /* is SHOUT a tty */ 591 EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */ 592 EXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */ 593 EXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */ 594 EXTERN int arun IZERO; /* Currently running multi-line-aliases */ 595 EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */ 596 EXTERN int inheredoc IZERO; /* Currently parsing a heredoc */ 597 /* We received a window change event */ 598 EXTERN volatile sig_atomic_t windowchg IZERO; 599 #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) 600 EXTERN int dspmbyte_ls; 601 #endif 602 603 /* 604 * Global i/o info 605 */ 606 EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */ 607 EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */ 608 extern Char *ffile; /* Name of shell file for $0 */ 609 extern int dolzero; /* if $?0 should return true... */ 610 611 extern char *seterr; /* Error message from scanner/parser */ 612 #ifndef errno 613 extern int errno; /* Error from C library routines */ 614 #endif 615 extern int exitset; 616 /* Temp name for << shell files in /tmp, for xfree() */ 617 EXTERN Char *shtemp IZERO; 618 619 #ifdef BSDTIMES 620 EXTERN struct timeval time0; /* Time at which the shell started */ 621 EXTERN struct sysrusage ru0; 622 #else 623 # ifdef _SEQUENT_ 624 EXTERN timeval_t time0; /* time at which shell started */ 625 EXTERN struct process_stats ru0; 626 # else /* _SEQUENT_ */ 627 # ifndef POSIX 628 EXTERN time_t time0; /* time at which shell started */ 629 # else /* POSIX */ 630 EXTERN clock_t time0; /* time at which shell started */ 631 EXTERN clock_t clk_tck; 632 # endif /* POSIX */ 633 EXTERN struct tms shtimes; /* shell and child times for process timing */ 634 # endif /* _SEQUENT_ */ 635 EXTERN time_t seconds0; 636 #endif /* BSDTIMES */ 637 638 #ifndef HZ 639 # define HZ 100 /* for division into seconds */ 640 #endif 641 642 /* 643 * Miscellany 644 */ 645 EXTERN Char *doldol; /* Character pid for $$ */ 646 EXTERN pid_t backpid; /* pid of the last background job */ 647 648 /* 649 * Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now 650 * cause pid's could be unsigned and that would break our -1 flag, and 651 * uid_t and gid_t are not defined in all the systems so I would have to 652 * make special cases for them. In the future... 653 */ 654 EXTERN uid_t uid, euid; /* Invokers real and effective */ 655 EXTERN gid_t gid, egid; /* User and group ids */ 656 EXTERN pid_t opgrp, /* Initial pgrp and tty pgrp */ 657 shpgrp, /* Pgrp of shell */ 658 tpgrp; /* Terminal process group */ 659 /* If tpgrp is -1, leave tty alone! */ 660 661 EXTERN Char *Prompt; /* The actual printed prompt or NULL */ 662 EXTERN Char *RPrompt; /* Right-hand side prompt or NULL */ 663 664 /* 665 * To be able to redirect i/o for builtins easily, the shell moves the i/o 666 * descriptors it uses away from 0,1,2. 667 * Ideally these should be in units which are closed across exec's 668 * (this saves work) but for version 6, this is not usually possible. 669 * The desired initial values for these descriptors are defined in 670 * sh.local.h. 671 */ 672 EXTERN int SHIN IZERO; /* Current shell input (script) */ 673 EXTERN int SHOUT IZERO; /* Shell output */ 674 EXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */ 675 EXTERN int OLDSTD IZERO; /* Old standard input (def for cmds) */ 676 677 678 #if (SYSVREL == 4 && defined(_UTS)) || defined(__linux__) 679 /* 680 * From: fadden@uts.amdahl.com (Andy McFadden) 681 * we need sigsetjmp for UTS4, but not UTS2.1 682 */ 683 # define SIGSETJMP 684 #endif 685 686 /* 687 * Error control 688 * 689 * Errors in scanning and parsing set up an error message to be printed 690 * at the end and complete. Other errors always cause a reset. 691 * Because of source commands and .cshrc we need nested error catches. 692 */ 693 694 #ifdef SIGSETJMP 695 typedef struct { sigjmp_buf j; } jmp_buf_t; 696 # define setexit() sigsetjmp(reslab.j, 1) 697 # define _reset() siglongjmp(reslab.j, 1) 698 #else 699 typedef struct { jmp_buf j; } jmp_buf_t; 700 # define setexit() setjmp(reslab.j) 701 # define _reset() longjmp(reslab.j, 1) 702 #endif 703 704 #define getexit(a) (void) ((a) = reslab) 705 #define resexit(a) (void) (reslab = (a)) 706 707 #define cpybin(a, b) (void) ((a) = (b)) 708 709 extern jmp_buf_t reslab; 710 711 EXTERN Char *gointr; /* Label for an onintr transfer */ 712 713 extern struct sigaction parintr; /* Parents interrupt catch */ 714 extern struct sigaction parterm; /* Parents terminate catch */ 715 716 /* 717 * Lexical definitions. 718 * 719 * All lexical space is allocated dynamically. 720 * The eighth/sixteenth bit of characters is used to prevent recognition, 721 * and eventually stripped. 722 */ 723 #define META 0200 724 #define ASCII 0177 725 #ifdef WIDE_STRINGS /* Implies SHORT_STRINGS */ 726 /* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */ 727 # define QUOTE 0x40000000 728 # define TRIM 0x3FFFFFFF /* Mask to strip quote bit */ 729 # define UNDER 0x08000000 /* Underline flag */ 730 # define BOLD 0x04000000 /* Bold flag */ 731 # define STANDOUT 0x02000000 /* Standout flag */ 732 # define LITERAL 0x01000000 /* Literal character flag */ 733 # define ATTRIBUTES 0x0F000000 /* The bits used for attributes */ 734 # define INVALID_BYTE 0x00800000 /* Invalid character on input */ 735 # ifdef SOLARIS2 736 # define CHAR 0x30FFFFFF /* Mask to mask out the character */ 737 # else 738 # define CHAR 0x00FFFFFF /* Mask to mask out the character */ 739 # endif 740 #elif defined (SHORT_STRINGS) 741 # define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */ 742 # define TRIM 0073777 /* Mask to strip quote/lit bit */ 743 # define UNDER 0040000 /* Underline flag */ 744 # define BOLD 0020000 /* Bold flag */ 745 # define STANDOUT 0010000 /* Standout flag */ 746 # define LITERAL 0004000 /* Literal character flag */ 747 # define ATTRIBUTES 0074000 /* The bits used for attributes */ 748 # define INVALID_BYTE 0 749 # define CHAR 0000377 /* Mask to mask out the character */ 750 #else 751 # define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */ 752 # define TRIM 0177 /* Mask to strip quote bit */ 753 # define UNDER 0000000 /* No extra bits to do both */ 754 # define BOLD 0000000 /* Bold flag */ 755 # define STANDOUT META /* Standout flag */ 756 # define LITERAL 0000000 /* Literal character flag */ 757 # define ATTRIBUTES 0200 /* The bits used for attributes */ 758 # define INVALID_BYTE 0 759 # define CHAR 0000177 /* Mask to mask out the character */ 760 #endif 761 #define CHAR_DBWIDTH (LITERAL|(LITERAL-1)) 762 763 EXTERN int AsciiOnly; /* If set only 7 bits expected in characters */ 764 765 /* 766 * Each level of input has a buffered input structure. 767 * There are one or more blocks of buffered input for each level, 768 * exactly one if the input is seekable and tell is available. 769 * In other cases, the shell buffers enough blocks to keep all loops 770 * in the buffer. 771 * 772 * If (WIDE_STRINGS && cantell), fbobp is always a byte offset, but 773 * (fseekp - fbobp) and (feobp - fbobp) are character offsets (usable for 774 * fbuf indexing). 775 * 776 * If (!cantell), all offsets are character offsets; if (!WIDE_STRINGS), there 777 * is no difference between byte and character offsets. 778 */ 779 EXTERN struct Bin { 780 off_t Bfseekp; /* Seek pointer, generally != lseek() value */ 781 off_t Bfbobp; /* Seekp of beginning of buffers */ 782 off_t Bfeobp; /* Seekp of end of buffers */ 783 int Bfblocks; /* Number of buffer blocks */ 784 Char **Bfbuf; /* The array of buffer blocks */ 785 #ifdef WIDE_STRINGS 786 /* Number of bytes in each character if (cantell) */ 787 unsigned char Bfclens[BUFSIZE + 1]; 788 #endif 789 } B; 790 791 /* 792 * This structure allows us to seek inside aliases 793 */ 794 struct Ain { 795 int type; 796 #define TCSH_I_SEEK 0 /* Invalid seek */ 797 #define TCSH_A_SEEK 1 /* Alias seek */ 798 #define TCSH_F_SEEK 2 /* File seek */ 799 #define TCSH_E_SEEK 3 /* Eval seek */ 800 union { 801 off_t _f_seek; /* A byte offset if (cantell) */ 802 Char* _c_seek; 803 } fc; 804 #define f_seek fc._f_seek 805 #define c_seek fc._c_seek 806 Char **a_seek; 807 } ; 808 809 extern int aret; /* Type of last char returned */ 810 #define SEEKEQ(a, b) ((a)->type == (b)->type && \ 811 (a)->f_seek == (b)->f_seek && \ 812 (a)->a_seek == (b)->a_seek) 813 814 #define fseekp B.Bfseekp 815 #define fbobp B.Bfbobp 816 #define feobp B.Bfeobp 817 #define fblocks B.Bfblocks 818 #define fbuf B.Bfbuf 819 #define fclens B.Bfclens 820 821 /* 822 * The shell finds commands in loops by reseeking the input 823 * For whiles, in particular, it reseeks to the beginning of the 824 * line the while was on; hence the while placement restrictions. 825 */ 826 EXTERN struct Ain lineloc; 827 828 EXTERN int cantell; /* Is current source tellable ? */ 829 830 /* 831 * Input lines are parsed into doubly linked circular 832 * lists of words of the following form. 833 */ 834 struct wordent { 835 Char *word; 836 struct wordent *prev; 837 struct wordent *next; 838 }; 839 840 /* 841 * During word building, both in the initial lexical phase and 842 * when expanding $ variable substitutions, expansion by `!' and `$' 843 * must be inhibited when reading ahead in routines which are themselves 844 * processing `!' and `$' expansion or after characters such as `\' or in 845 * quotations. The following flags are passed to the getC routines 846 * telling them which of these substitutions are appropriate for the 847 * next character to be returned. 848 */ 849 #define DODOL 1 850 #define DOEXCL 2 851 #define DOALL DODOL|DOEXCL 852 853 /* 854 * Labuf implements a general buffer for lookahead during lexical operations. 855 * Text which is to be placed in the input stream can be stuck here. 856 * We stick parsed ahead $ constructs during initial input, 857 * process id's from `$$', and modified variable values (from qualifiers 858 * during expansion in sh.dol.c) here. 859 */ 860 extern struct Strbuf labuf; 861 EXTERN size_t lap; /* N/A if == labuf.len, index into labuf.s otherwise */ 862 863 /* 864 * Parser structure 865 * 866 * Each command is parsed to a tree of command structures and 867 * flags are set bottom up during this process, to be propagated down 868 * as needed during the semantics/exeuction pass (sh.sem.c). 869 */ 870 struct command { 871 unsigned char t_dtyp; /* Type of node */ 872 #define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */ 873 #define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */ 874 #define NODE_PIPE 3 /* t_dlef | t_drit */ 875 #define NODE_LIST 4 /* t_dlef ; t_drit */ 876 #define NODE_OR 5 /* t_dlef || t_drit */ 877 #define NODE_AND 6 /* t_dlef && t_drit */ 878 unsigned char t_nice; /* Nice value */ 879 #ifdef apollo 880 unsigned char t_systype; /* System environment */ 881 #endif 882 unsigned long t_dflg; /* Flags, e.g. F_AMPERSAND|... */ 883 /* save these when re-doing */ 884 #ifndef apollo 885 #define F_SAVE (F_NICE|F_TIME|F_NOHUP|F_HUP) 886 #else 887 #define F_SAVE (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER) 888 #endif 889 #define F_AMPERSAND (1<<0) /* executes in background */ 890 #define F_APPEND (1<<1) /* output is redirected >> */ 891 #define F_PIPEIN (1<<2) /* input is a pipe */ 892 #define F_PIPEOUT (1<<3) /* output is a pipe */ 893 #define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */ 894 #define F_NOINTERRUPT (1<<5) /* should be immune from intr's */ 895 /* spare */ 896 #define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */ 897 #define F_OVERWRITE (1<<8) /* output was ! */ 898 #define F_READ (1<<9) /* input redirection is << */ 899 #define F_REPEAT (1<<10) /* reexec aft if, repeat,... */ 900 #define F_NICE (1<<11) /* t_nice is meaningful */ 901 #define F_NOHUP (1<<12) /* nohup this command */ 902 #define F_TIME (1<<13) /* time this command */ 903 #define F_BACKQ (1<<14) /* command is in `` */ 904 #define F_HUP (1<<15) /* hup this command */ 905 #ifdef apollo 906 #define F_VER (1<<16) /* execute command under SYSTYPE */ 907 #endif 908 union { 909 Char *T_dlef; /* Input redirect word */ 910 struct command *T_dcar; /* Left part of list/pipe */ 911 } L; 912 union { 913 Char *T_drit; /* Output redirect word */ 914 struct command *T_dcdr; /* Right part of list/pipe */ 915 } R; 916 #define t_dlef L.T_dlef 917 #define t_dcar L.T_dcar 918 #define t_drit R.T_drit 919 #define t_dcdr R.T_dcdr 920 Char **t_dcom; /* Command/argument vector */ 921 struct command *t_dspr; /* Pointer to ()'d subtree */ 922 }; 923 924 925 /* 926 * The keywords for the parser 927 */ 928 #define TC_BREAK 0 929 #define TC_BRKSW 1 930 #define TC_CASE 2 931 #define TC_DEFAULT 3 932 #define TC_ELSE 4 933 #define TC_END 5 934 #define TC_ENDIF 6 935 #define TC_ENDSW 7 936 #define TC_EXIT 8 937 #define TC_FOREACH 9 938 #define TC_GOTO 10 939 #define TC_IF 11 940 #define TC_LABEL 12 941 #define TC_LET 13 942 #define TC_SET 14 943 #define TC_SWITCH 15 944 #define TC_TEST 16 945 #define TC_THEN 17 946 #define TC_WHILE 18 947 948 /* 949 * These are declared here because they want to be 950 * initialized in sh.init.c (to allow them to be made readonly) 951 */ 952 953 #if defined(hpux) && defined(__STDC__) && !defined(__GNUC__) 954 /* Avoid hpux ansi mode spurious warnings */ 955 typedef void (*bfunc_t) (); 956 #else 957 typedef void (*bfunc_t) (Char **, struct command *); 958 #endif /* hpux && __STDC__ && !__GNUC__ */ 959 960 extern const struct biltins { 961 const char *bname; 962 bfunc_t bfunct; 963 int minargs, maxargs; 964 } bfunc[]; 965 extern int nbfunc; 966 #ifdef WINNT_NATIVE 967 extern struct biltins nt_bfunc[]; 968 extern int nt_nbfunc; 969 #endif /* WINNT_NATIVE*/ 970 extern int bequiet; 971 972 extern struct srch { 973 const char *s_name; 974 int s_value; 975 } srchn[]; 976 extern int nsrchn; 977 978 /* 979 * Structure defining the existing while/foreach loops at this 980 * source level. Loops are implemented by seeking back in the 981 * input. For foreach (fe), the word list is attached here. 982 */ 983 EXTERN struct whyle { 984 struct Ain w_start; /* Point to restart loop */ 985 struct Ain w_end; /* End of loop (0 if unknown) */ 986 Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */ 987 Char *w_fename; /* Name for fe */ 988 struct whyle *w_next; /* Next (more outer) loop */ 989 } *whyles; 990 991 /* 992 * Variable structure 993 * 994 * Aliases and variables are stored in AVL balanced binary trees. 995 */ 996 EXTERN struct varent { 997 Char **vec; /* Array of words which is the value */ 998 Char *v_name; /* Name of variable/alias */ 999 int v_flags; /* Flags */ 1000 #define VAR_ALL -1 1001 #define VAR_READONLY 1 1002 #define VAR_READWRITE 2 1003 #define VAR_NOGLOB 4 1004 #define VAR_FIRST 32 1005 #define VAR_LAST 64 1006 struct varent *v_link[3]; /* The links, see below */ 1007 int v_bal; /* Balance factor */ 1008 } shvhed IZERO_STRUCT, aliases IZERO_STRUCT; 1009 1010 #define v_left v_link[0] 1011 #define v_right v_link[1] 1012 #define v_parent v_link[2] 1013 1014 #define adrof(v) adrof1(v, &shvhed) 1015 #define varval(v) value1(v, &shvhed) 1016 1017 /* 1018 * The following are for interfacing redo substitution in 1019 * aliases to the lexical routines. 1020 */ 1021 EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */ 1022 EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */ 1023 EXTERN Char **alvec IZERO_STRUCT, 1024 *alvecp IZERO_STRUCT;/* The (remnants of) alias vector */ 1025 1026 /* 1027 * Filename/command name expansion variables 1028 */ 1029 1030 #ifdef __CYGWIN__ 1031 # undef MAXPATHLEN 1032 #endif /* __CYGWIN__ */ 1033 1034 #ifndef MAXPATHLEN 1035 # ifdef PATH_MAX 1036 # define MAXPATHLEN PATH_MAX 1037 # else 1038 # define MAXPATHLEN 2048 1039 # endif 1040 #endif /* MAXPATHLEN */ 1041 1042 #ifndef HAVENOLIMIT 1043 /* 1044 * resource limits 1045 */ 1046 extern struct limits { 1047 int limconst; 1048 const char *limname; 1049 int limdiv; 1050 const char *limscale; 1051 } limits[]; 1052 #endif /* !HAVENOLIMIT */ 1053 1054 /* 1055 * History list 1056 * 1057 * Each history list entry contains an embedded wordlist 1058 * from the scanner, a number for the event, and a reference count 1059 * to aid in discarding old entries. 1060 * 1061 * Essentially "invisible" entries are put on the history list 1062 * when history substitution includes modifiers, and thrown away 1063 * at the next discarding since their event numbers are very negative. 1064 */ 1065 EXTERN struct Hist { 1066 struct wordent Hlex; 1067 int Hnum; /* eventno when inserted into history list */ 1068 int Href; 1069 time_t Htime; 1070 Char *histline; 1071 struct Hist *Hnext, *Hprev; /* doubly linked list */ 1072 unsigned Hhash; /* hash value of command line */ 1073 } Histlist IZERO_STRUCT; 1074 1075 EXTERN struct wordent paraml; /* Current lexical word list */ 1076 EXTERN int eventno; /* Next events number */ 1077 EXTERN int lastev; /* Last event reference (default) */ 1078 1079 EXTERN Char HIST; /* history invocation character */ 1080 EXTERN Char HISTSUB; /* auto-substitute character */ 1081 EXTERN Char PRCH; /* Prompt symbol for regular users */ 1082 EXTERN Char PRCHROOT; /* Prompt symbol for root */ 1083 1084 /* 1085 * For operating systems with single case filenames (OS/2) 1086 */ 1087 #ifdef CASE_INSENSITIVE 1088 # ifdef WIDE_STRINGS 1089 # define samecase(x) (towlower(x)) 1090 # else 1091 # define samecase(x) (isupper((unsigned char)(x)) ? \ 1092 tolower((unsigned char)(x)) : (x)) 1093 # endif 1094 #else 1095 # define samecase(x) (x) 1096 #endif /* CASE_INSENSITIVE */ 1097 1098 /* 1099 * strings.h: 1100 */ 1101 #ifndef SHORT_STRINGS 1102 #define Strchr(a, b) strchr(a, b) 1103 #define Strrchr(a, b) strrchr(a, b) 1104 #define Strcat(a, b) strcat(a, b) 1105 #define Strncat(a, b, c) strncat(a, b, c) 1106 #define Strcpy(a, b) strcpy(a, b) 1107 #define Strncpy(a, b, c) strncpy(a, b, c) 1108 #define Strlen(a) strlen(a) 1109 #define Strcmp(a, b) strcmp(a, b) 1110 #define Strncmp(a, b, c) strncmp(a, b, c) 1111 #define Strcasecmp(a, b) strcasecmp(a, b) 1112 1113 #define Strspl(a, b) strspl(a, b) 1114 #define Strnsave(a, b) strnsave(a, b) 1115 #define Strsave(a) strsave(a) 1116 #define Strend(a) strend(a) 1117 #define Strstr(a, b) strstr(a, b) 1118 1119 #define str2short(a) (a) 1120 #define blk2short(a) saveblk(a) 1121 #define short2blk(a) saveblk(a) 1122 #define short2str(a) caching_strip(a) 1123 #else 1124 #if defined(WIDE_STRINGS) && !defined(UTF16_STRINGS) 1125 #define Strchr(a, b) wcschr(a, b) 1126 #define Strrchr(a, b) wcsrchr(a, b) 1127 #define Strcat(a, b) wcscat(a, b) 1128 #define Strncat(a, b, c) wcsncat(a, b, c) 1129 #define Strcpy(a, b) wcscpy(a, b) 1130 #define Strncpy(a, b, c) wcsncpy(a, b, c) 1131 #define Strlen(a) wcslen(a) 1132 #define Strcmp(a, b) wcscmp(a, b) 1133 #define Strncmp(a, b, c) wcsncmp(a, b, c) 1134 #else 1135 #define Strchr(a, b) s_strchr(a, b) 1136 #define Strrchr(a, b) s_strrchr(a, b) 1137 #define Strcat(a, b) s_strcat(a, b) 1138 #define Strncat(a, b, c) s_strncat(a, b, c) 1139 #define Strcpy(a, b) s_strcpy(a, b) 1140 #define Strncpy(a, b, c) s_strncpy(a, b, c) 1141 #define Strlen(a) s_strlen(a) 1142 #define Strcmp(a, b) s_strcmp(a, b) 1143 #define Strncmp(a, b, c) s_strncmp(a, b, c) 1144 #endif 1145 #define Strcasecmp(a, b) s_strcasecmp(a, b) 1146 1147 #define Strspl(a, b) s_strspl(a, b) 1148 #define Strnsave(a, b) s_strnsave(a, b) 1149 #define Strsave(a) s_strsave(a) 1150 #define Strend(a) s_strend(a) 1151 #define Strstr(a, b) s_strstr(a, b) 1152 #endif 1153 1154 /* 1155 * setname is a macro to save space (see sh.err.c) 1156 */ 1157 EXTERN const char *bname; 1158 1159 #define setname(a) (bname = (a)) 1160 1161 #ifdef VFORK 1162 EXTERN Char *Vsav; 1163 EXTERN Char *Vdp; 1164 EXTERN Char *Vexpath; 1165 EXTERN char **Vt; 1166 #endif /* VFORK */ 1167 1168 EXTERN Char **evalvec; 1169 EXTERN Char *evalp; 1170 1171 extern struct mesg { 1172 const char *iname; /* name from /usr/include */ 1173 const char *pname; /* print name */ 1174 } mesg[]; 1175 1176 /* word_chars is set by default to WORD_CHARS but can be overridden by 1177 the worchars variable--if unset, reverts to WORD_CHARS */ 1178 1179 EXTERN Char *word_chars; 1180 1181 #define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ 1182 1183 EXTERN Char *STR_SHELLPATH; 1184 1185 #ifdef _PATH_BSHELL 1186 EXTERN Char *STR_BSHELL; 1187 #endif 1188 EXTERN Char *STR_WORD_CHARS; 1189 EXTERN Char **STR_environ IZERO; 1190 1191 extern int dont_free; /* Tell free that we are in danger if we free */ 1192 1193 extern Char *INVPTR; 1194 extern Char **INVPPTR; 1195 1196 extern char *progname; 1197 extern int tcsh; 1198 extern int xlate_cr; 1199 extern int output_raw; 1200 extern int lbuffed; 1201 extern time_t Htime; 1202 extern int numeof; 1203 extern int insource; 1204 extern char linbuf[]; 1205 extern char *linp; 1206 extern int nsig; 1207 #ifdef VFORK 1208 extern int use_fork; 1209 #endif 1210 extern int tellwhat; 1211 extern int NoNLSRebind; 1212 #if !HAVE_DECL_ENVIRON 1213 extern char **environ; 1214 #endif 1215 1216 #include "tc.h" 1217 1218 #ifndef WINNT_NATIVE 1219 # ifdef NLS_CATALOGS 1220 # ifdef HAVE_FEATURES_H 1221 # include <features.h> 1222 # endif 1223 # ifdef HAVE_NL_LANGINFO 1224 # include <langinfo.h> 1225 # endif 1226 # ifdef __uxps__ 1227 # define gettxt gettxt_ds 1228 # endif 1229 # include <nl_types.h> 1230 # ifdef __uxps__ 1231 # undef gettxt 1232 # endif 1233 EXTERN nl_catd catd; 1234 # if defined(HAVE_ICONV) && defined(HAVE_NL_LANGINFO) 1235 # define CGETS(b, c, d) iconv_catgets(catd, b, c, d) 1236 # else 1237 # define CGETS(b, c, d) xcatgets(catd, b, c, d) 1238 # endif 1239 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1240 # else 1241 # define CGETS(b, c, d) d 1242 # define CSAVS(b, c, d) d 1243 # endif 1244 #else /* WINNT_NATIVE */ 1245 # define CGETS(b, c, d) nt_cgets( b, c, d) 1246 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1247 #endif /* WINNT_NATIVE */ 1248 1249 #if defined(FILEC) 1250 extern int filec; 1251 #endif /* FILEC */ 1252 1253 #include "sh.decls.h" 1254 /* 1255 * Since on some machines characters are unsigned, and the signed 1256 * keyword is not universally implemented, we treat all characters 1257 * as unsigned and sign extend them where we need. 1258 */ 1259 #define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a)) 1260 1261 /* 1262 * explanation for use by the "--help" option 1263 */ 1264 #define HELP_STRING "\ 1265 -b file batch mode, read and execute commands from `file' \n\ 1266 -c command run `command' from next argument \n\ 1267 -d load directory stack from `~/.cshdirs' \n\ 1268 -Dname[=value] define environment variable `name' to `value' (DomainOS only) \n\ 1269 -e exit on any error \n\ 1270 -f start faster by ignoring the start-up file \n\ 1271 -F use fork() instead of vfork() when spawning (ConvexOS only) \n\ 1272 -i interactive, even when input is not from a terminal \n\ 1273 -l act as a login shell, must be the only option specified \n\ 1274 -m load the start-up file, whether or not owned by effective user \n\ 1275 -n file no execute mode, just check syntax of the following `file' \n\ 1276 -q accept SIGQUIT for running under a debugger \n\ 1277 -s read commands from standard input \n\ 1278 -t read one line from standard input \n\ 1279 -v echo commands after history substitution \n\ 1280 -V like -v but including commands read from the start-up file \n\ 1281 -x echo commands immediately before execution \n\ 1282 -X like -x but including commands read from the start-up file \n\ 1283 --help print this message and exit \n\ 1284 --version print the version shell variable and exit \n\ 1285 \nSee the tcsh(1) manual page for detailed information.\n" 1286 1287 #include "tc.nls.h" 1288 1289 #endif /* _h_sh */ 1290