1 /* $Header: /src/pub/tcsh/sh.h,v 3.133 2005/03/25 18:46:41 kim 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 40 #ifdef HAVE_ICONV 41 # include <iconv.h> 42 #endif 43 44 #ifdef HAVE_STDINT_H 45 # include <stdint.h> 46 #endif 47 48 #ifdef HAVE_INTTYPES_H 49 # include <inttypes.h> 50 #endif 51 52 #if !defined(HAVE_STDINT_H) && !defined(HAVE_INTTYPES_H) && !defined(WINNT_NATIVE) 53 typedef unsigned long intptr_t; 54 #endif 55 56 #ifndef EXTERN 57 # define EXTERN extern 58 #else /* !EXTERN */ 59 # ifdef WINNT_NATIVE 60 # define IZERO = 0 61 # define IZERO_STRUCT = {0} 62 # endif /* WINNT_NATIVE */ 63 #endif /* EXTERN */ 64 65 #ifndef IZERO 66 # define IZERO 67 #endif /* IZERO */ 68 #ifndef IZERO_STRUCT 69 # define IZERO_STRUCT 70 #endif /* IZERO_STRUCT */ 71 72 #ifndef WINNT_NATIVE 73 # define INIT_ZERO 74 # define INIT_ZERO_STRUCT 75 # define force_read read 76 #endif /*!WINNT_NATIVE */ 77 /* 78 * Sanity 79 */ 80 #if defined(_POSIX_SOURCE) && !defined(POSIX) 81 # define POSIX 82 #endif 83 84 #if defined(POSIXJOBS) && !defined(BSDJOBS) 85 # define BSDJOBS 86 #endif 87 88 #if defined(POSIXSIGS) && !defined(BSDSIGS) 89 # define BSDSIGS 90 #endif 91 92 #ifdef SHORT_STRINGS 93 #include <wchar.h> 94 # ifdef WIDE_STRINGS 95 typedef wchar_t Char; 96 typedef unsigned long uChar; 97 typedef wint_t eChar; /* Can contain any Char value or CHAR_ERR */ 98 #define CHAR_ERR WEOF /* Pretty please, use bit 31... */ 99 #define normal_mbtowc(PWC, S, N) rt_mbtowc(PWC, S, N) 100 #define reset_mbtowc() mbtowc(NULL, NULL, 0) 101 # else 102 typedef short Char; 103 typedef unsigned short uChar; 104 typedef int eChar; 105 #define CHAR_ERR (-1) 106 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 107 #define reset_mbtowc() ((void)0) 108 # endif 109 # define SAVE(a) (Strsave(str2short(a))) 110 #else 111 typedef char Char; 112 typedef unsigned char uChar; 113 typedef int eChar; 114 #define CHAR_ERR (-1) 115 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 116 #define reset_mbtowc() ((void)0) 117 # define SAVE(a) (strsave(a)) 118 #endif 119 #if SIZEOF_WCHAR_T >= 4 120 typedef wchar_t NLSChar; 121 #else 122 /* Assumes sizeof (int) >= 4, unlike some parts of tcsh */ 123 typedef int NLSChar; 124 #endif 125 126 /* Elide unused argument warnings */ 127 #define USE(a) (void) (a) 128 129 /* 130 * Return true if the path is absolute 131 */ 132 #if defined(WINNT_NATIVE) 133 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 134 (Isalpha((p)[0]) && (p)[1] == ':')) 135 #elif defined(__CYGWIN__) 136 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 137 (Isalpha((p)[0]) && (p)[1] == ':' && \ 138 ((p)[2] == '\0' || (p)[2] == '/'))) 139 #else /* !WINNT_NATIVE && !__CYGWIN__ */ 140 # define ABSOLUTEP(p) (*(p) == '/') 141 #endif /* WINNT_NATIVE || __CYGWIN__ */ 142 143 /* 144 * Fundamental definitions which may vary from system to system. 145 * 146 * BUFSIZE The i/o buffering size; also limits word size 147 * MAILINTVL How often to mailcheck; more often is more expensive 148 */ 149 #ifdef BUFSIZE 150 # if BUFSIZE < 4096 151 # undef BUFSIZE 152 # define BUFSIZE 4096 /* buffer size should be no less than this */ 153 # endif 154 #else 155 # define BUFSIZE 4096 156 #endif /* BUFSIZE */ 157 158 #define FORKSLEEP 10 /* delay loop on non-interactive fork failure */ 159 #define MAILINTVL 600 /* 10 minutes */ 160 161 #ifndef INBUFSIZE 162 # define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */ 163 #endif /* INBUFSIZE */ 164 165 166 /* 167 * What our builtin echo looks like 168 */ 169 #define NONE_ECHO 0 170 #define BSD_ECHO 1 171 #define SYSV_ECHO 2 172 #define BOTH_ECHO (BSD_ECHO|SYSV_ECHO) 173 174 #ifndef ECHO_STYLE 175 # if SYSVREL > 0 176 # define ECHO_STYLE SYSV_ECHO 177 # else /* SYSVREL == 0 */ 178 # define ECHO_STYLE BSD_ECHO 179 # endif /* SYSVREL */ 180 #endif /* ECHO_STYLE */ 181 182 /* 183 * The shell moves std in/out/diag and the old std input away from units 184 * 0, 1, and 2 so that it is easy to set up these standards for invoked 185 * commands. 186 */ 187 #define FSAFE 5 /* We keep the first 5 descriptors untouched */ 188 #define FSHTTY 15 /* /dev/tty when manip pgrps */ 189 #define FSHIN 16 /* Preferred desc for shell input */ 190 #define FSHOUT 17 /* ... shell output */ 191 #define FSHDIAG 18 /* ... shell diagnostics */ 192 #define FOLDSTD 19 /* ... old std input */ 193 194 #ifdef PROF 195 #define xexit(n) done(n) 196 #endif 197 198 #ifdef cray 199 # define word word_t /* sys/types.h defines word.. bad move! */ 200 #endif 201 202 #include <sys/types.h> 203 204 #ifdef cray 205 # undef word 206 #endif 207 208 /* 209 * Path separator in environment variables 210 */ 211 #ifndef PATHSEP 212 # if defined(__EMX__) || defined(WINNT_NATIVE) 213 # define PATHSEP ';' 214 # else /* unix */ 215 # define PATHSEP ':' 216 # endif /* __EMX__ || WINNT_NATIVE */ 217 #endif /* !PATHSEP */ 218 219 #if defined(__HP_CXD_SPP) && !defined(__hpux) 220 # include <sys/cnx_stat.h> 221 # define stat stat64 222 # define fstat fstat64 223 # define lstat lstat64 224 #endif /* __HP_CXD_SPP && !__hpux */ 225 226 /* 227 * This macro compares the st_dev field of struct stat. On aix on ibmESA 228 * st_dev is a structure, so comparison does not work. 229 */ 230 #ifndef DEV_DEV_COMPARE 231 # define DEV_DEV_COMPARE(x,y) ((x) == (y)) 232 #endif /* DEV_DEV_COMPARE */ 233 234 #ifdef _SEQUENT_ 235 # include <sys/procstats.h> 236 #endif /* _SEQUENT_ */ 237 #if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE) 238 # include <sys/times.h> 239 #endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */ 240 241 #ifdef NLS 242 # include <locale.h> 243 #endif /* NLS */ 244 245 246 #if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__) 247 # include <sys/param.h> 248 #endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */ 249 #include <sys/stat.h> 250 251 #if defined(BSDTIMES) || defined(BSDLIMIT) 252 # include <sys/time.h> 253 # if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__) 254 # include "/usr/ucbinclude/sys/resource.h" 255 # else 256 # ifdef convex 257 # define sysrusage cvxrusage 258 # include <sys/sysinfo.h> 259 # else 260 # define sysrusage rusage 261 # include <sys/resource.h> 262 # endif /* convex */ 263 # endif /* SYSVREL>3 */ 264 #endif /* BSDTIMES */ 265 266 #ifndef WINNT_NATIVE 267 # ifndef POSIX 268 # ifdef TERMIO 269 # include <termio.h> 270 # else /* SGTTY */ 271 # include <sgtty.h> 272 # endif /* TERMIO */ 273 # else /* POSIX */ 274 # ifndef _UWIN 275 # include <termios.h> 276 # else 277 # include <termio.h> 278 # endif /* _UWIN */ 279 # if SYSVREL > 3 280 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 281 # undef TIOCSLTC 282 # undef CSWTCH 283 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 284 # endif /* SYSVREL > 3 */ 285 # endif /* POSIX */ 286 #endif /* WINNT_NATIVE */ 287 288 #ifdef sonyrisc 289 # include <sys/ttold.h> 290 #endif /* sonyrisc */ 291 292 #if defined(POSIX) && !defined(WINNT_NATIVE) 293 # include <unistd.h> 294 295 /* 296 * the gcc+protoize version of <stdlib.h> 297 * redefines malloc(), so we define the following 298 * to avoid it. 299 */ 300 # if defined(SYSMALLOC) || defined(linux) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX) 301 # define NO_FIX_MALLOC 302 # include <stdlib.h> 303 # else /* glibc */ 304 # define _GNU_STDLIB_H 305 # define malloc __malloc 306 # define free __free 307 # define calloc __calloc 308 # define realloc __realloc 309 # include <stdlib.h> 310 # undef malloc 311 # undef free 312 # undef calloc 313 # undef realloc 314 # endif /* glibc || sgi */ 315 # include <limits.h> 316 #endif /* POSIX && !WINNT_NATIVE */ 317 318 #if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(linux) || defined(__GNU__) || defined(__GLIBC__) 319 # if !defined(pyr) && !defined(stellar) 320 # include <time.h> 321 # ifdef _MINIX 322 # define HZ CLOCKS_PER_SEC 323 # endif /* _MINIX */ 324 # endif /* !pyr && !stellar */ 325 #endif /* SYSVREL > 0 || _IBMR2 */ 326 327 /* In the following ifdef the DECOSF1 has been commented so that later 328 * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions... 329 */ 330 #if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO)) 331 # if !defined(COHERENT) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) 332 # include <sys/ioctl.h> 333 # endif 334 #endif 335 336 #if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX) 337 #undef CSWTCH 338 #define CSWTCH _POSIX_VDISABLE 339 #endif 340 341 #if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__) 342 # include <sys/filio.h> 343 #endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */ 344 345 #if !defined(_MINIX) && !defined(COHERENT) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D) 346 # include <sys/file.h> 347 #endif /* !_MINIX && !COHERENT && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */ 348 349 #if !defined(O_RDONLY) || !defined(O_NDELAY) 350 # include <fcntl.h> 351 #endif 352 #ifndef O_LARGEFILE 353 # define O_LARGEFILE 0 354 #endif 355 356 #include <errno.h> 357 358 #include <setjmp.h> 359 360 #if defined(PROTOTYPES) 361 # include <stdarg.h> 362 #else 363 #ifdef _MINIX 364 # include "mi.varargs.h" 365 #else 366 # include <varargs.h> 367 #endif /* _MINIX */ 368 #endif 369 370 #ifdef HAVE_DIRENT_H 371 # include <dirent.h> 372 #else 373 # ifdef HAVE_NDIR_H 374 # include <ndir.h> 375 # else 376 # include <sys/dir.h> 377 # endif 378 # define dirent direct 379 #endif /* HAVE_DIRENT_H */ 380 #ifndef HAVE_STRUCT_DIRENT_D_INO 381 # define d_ino d_fileno 382 #endif 383 #if defined(hpux) || defined(sgi) || defined(OREO) || defined(COHERENT) 384 # include <stdio.h> /* So the fgetpwent() prototypes work */ 385 #endif /* hpux || sgi || OREO || COHERENT */ 386 #ifndef WINNT_NATIVE 387 #include <pwd.h> 388 #include <grp.h> 389 #endif /* WINNT_NATIVE */ 390 #ifdef HAVE_SHADOW_H 391 # include <shadow.h> 392 #endif /* HAVE_SHADOW_H */ 393 #ifdef HAVE_AUTH_H 394 # include <auth.h> 395 #endif /* HAVE_AUTH_H */ 396 #if defined(BSD) && !defined(POSIX) 397 # include <strings.h> 398 # define strchr(a, b) index(a, b) 399 # define strrchr(a, b) rindex(a, b) 400 #else 401 # include <string.h> 402 #endif /* BSD */ 403 404 /* 405 * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not 406 * include it yet, so we include it here 407 */ 408 #if defined(sgi) && SYSVREL > 3 409 # include <sys/cdefs.h> 410 #endif /* sgi && SYSVREL > 3 */ 411 412 #ifdef REMOTEHOST 413 # ifdef ISC 414 # undef MAXHOSTNAMELEN /* Busted headers? */ 415 # endif 416 417 # include <netinet/in.h> 418 # include <arpa/inet.h> 419 # include <sys/socket.h> 420 # if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) 421 # if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */ 422 # if !defined(sgi) 423 # define INET6 424 # endif /* sgi */ 425 # endif /* __APPLE__ */ 426 # endif 427 # include <sys/uio.h> /* For struct iovec */ 428 #endif /* REMOTEHOST */ 429 430 /* 431 * ANSIisms... These must be *after* the system include and 432 * *before* our includes, so that BSDreno has time to define __P 433 */ 434 #undef __P 435 #ifndef __P 436 # if defined(PROTOTYPES) 437 # define __P(a) a 438 # else 439 # define __P(a) () 440 # endif 441 #endif 442 443 444 #ifdef PURIFY 445 /* exit normally, allowing purify to trace leaks */ 446 # define _exit exit 447 typedef int pret_t; 448 #else /* !PURIFY */ 449 /* 450 * If your compiler complains, then you can either 451 * throw it away and get gcc or, use the following define 452 * and get rid of the typedef. 453 * [The 4.2/3BSD vax compiler does not like that] 454 * Both MULTIFLOW and PCC compilers exhbit this bug. -- sterling@netcom.com 455 */ 456 # if (defined(vax) || defined(uts) || defined(MULTIFLOW) || defined(PCC)) && !defined(__GNUC__) 457 # define pret_t void 458 # else /* !((vax || uts || MULTIFLOW || PCC) && !__GNUC__) */ 459 typedef void pret_t; 460 # endif /* (vax || uts || MULTIFLOW || PCC) && !__GNUC__ */ 461 #endif /* PURIFY */ 462 463 /* 464 * ASCII vs. EBCDIC 465 */ 466 #if 'Z' - 'A' == 25 467 # ifndef IS_ASCII 468 # define IS_ASCII 469 # endif 470 #endif 471 472 #include "sh.types.h" 473 474 #ifndef __NetBSD__ /* XXX */ 475 #ifndef WINNT_NATIVE 476 # ifndef GETPGRP_VOID 477 extern pid_t getpgrp __P((int)); 478 # else 479 extern pid_t getpgrp __P((void)); 480 # endif 481 #endif /* !WINNT_NATIVE */ 482 #endif 483 484 typedef RETSIGTYPE (*signalfun_t) __P((int)); 485 486 #ifndef lint 487 typedef ptr_t memalign_t; 488 #else 489 typedef union { 490 char am_char, *am_char_p; 491 short am_short, *am_short_p; 492 int am_int, *am_int_p; 493 long am_long, *am_long_p; 494 float am_float, *am_float_p; 495 double am_double, *am_double_p; 496 } *memalign_t; 497 498 # define malloc lint_malloc 499 # define free lint_free 500 # define realloc lint_realloc 501 # define calloc lint_calloc 502 #endif 503 504 #ifdef MDEBUG 505 extern memalign_t DebugMalloc __P((unsigned, char *, int)); 506 extern memalign_t DebugRealloc __P((ptr_t, unsigned, char *, int)); 507 extern memalign_t DebugCalloc __P((unsigned, unsigned, char *, int)); 508 extern void DebugFree __P((ptr_t, char *, int)); 509 # define xmalloc(i) DebugMalloc(i, __FILE__, __LINE__) 510 # define xrealloc(p, i)((p) ? DebugRealloc(p, i, __FILE__, __LINE__) : \ 511 DebugMalloc(i, __FILE__, __LINE__)) 512 # define xcalloc(n, s) DebugCalloc(n, s, __FILE__, __LINE__) 513 # define xfree(p) if (p) DebugFree(p, __FILE__, __LINE__) 514 #else 515 # ifdef SYSMALLOC 516 # define xmalloc(i) smalloc(i) 517 # define xrealloc(p, i) srealloc(p, i) 518 # define xcalloc(n, s) scalloc(n, s) 519 # define xfree(p) sfree(p) 520 # else 521 # define xmalloc(i) malloc(i) 522 # define xrealloc(p, i) realloc(p, i) 523 # define xcalloc(n, s) calloc(n, s) 524 # define xfree(p) free(p) 525 # endif /* SYSMALLOC */ 526 #endif /* MDEBUG */ 527 #include "sh.char.h" 528 #include "sh.err.h" 529 #include "sh.dir.h" 530 #include "sh.proc.h" 531 532 #include "pathnames.h" 533 534 535 /* 536 * C shell 537 * 538 * Bill Joy, UC Berkeley 539 * October, 1978; May 1980 540 * 541 * Jim Kulp, IIASA, Laxenburg Austria 542 * April, 1980 543 */ 544 545 #if !defined(MAXNAMLEN) && defined(_D_NAME_MAX) 546 # define MAXNAMLEN _D_NAME_MAX 547 #endif /* MAXNAMLEN */ 548 549 #ifdef HESIOD 550 # include <hesiod.h> 551 #endif /* HESIOD */ 552 553 #ifdef REMOTEHOST 554 # include <netdb.h> 555 #endif /* REMOTEHOST */ 556 557 #ifndef MAXHOSTNAMELEN 558 # if defined(SCO) && (SYSVREL > 3) 559 # include <sys/socket.h> 560 # else 561 # define MAXHOSTNAMELEN 256 562 # endif 563 #endif /* MAXHOSTNAMELEN */ 564 565 566 567 #define eq(a, b) (Strcmp(a, b) == 0) 568 569 /* globone() flags */ 570 #define G_ERROR 0 /* default action: error if multiple words */ 571 #define G_IGNORE 1 /* ignore the rest of the words */ 572 #define G_APPEND 2 /* make a sentence by cat'ing the words */ 573 574 /* 575 * Global flags 576 */ 577 EXTERN int chkstop IZERO; /* Warned of stopped jobs... allow exit */ 578 579 #if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD) 580 # define CLOSE_ON_EXEC 581 #else 582 EXTERN int didcch IZERO; /* Have closed unused fd's for child */ 583 #endif /* (FIOCLEX && FIONCLEX) || F_SETFD */ 584 585 EXTERN int didfds IZERO; /* Have setup i/o fd's for child */ 586 EXTERN int doneinp IZERO; /* EOF indicator after reset from readc */ 587 EXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */ 588 EXTERN int child IZERO; /* Child shell ... errors cause exit */ 589 EXTERN int haderr IZERO; /* Reset was because of an error */ 590 EXTERN int intty IZERO; /* Input is a tty */ 591 EXTERN int intact IZERO; /* We are interactive... therefore prompt */ 592 EXTERN int justpr IZERO; /* Just print because of :p hist mod */ 593 EXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */ 594 EXTERN int neednote IZERO; /* Need to pnotify() */ 595 EXTERN int noexec IZERO; /* Don't execute, just syntax check */ 596 EXTERN int pjobs IZERO; /* want to print jobs if interrupted */ 597 EXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */ 598 EXTERN int timflg IZERO; /* Time the next waited for command */ 599 EXTERN int havhash IZERO; /* path hashing is available */ 600 EXTERN int editing IZERO; /* doing filename expansion and line editing */ 601 EXTERN int noediting IZERO; /* initial $term defaulted to noedit */ 602 EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */ 603 EXTERN int isoutatty IZERO; /* is SHOUT a tty */ 604 EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */ 605 EXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */ 606 EXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */ 607 EXTERN int arun IZERO; /* Currently running multi-line-aliases */ 608 EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */ 609 EXTERN int inheredoc IZERO; /* Currently parsing a heredoc */ 610 EXTERN int windowchg IZERO; /* We received a window change event */ 611 #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) 612 EXTERN int dspmbyte_ls; 613 #endif 614 615 /* 616 * Global i/o info 617 */ 618 EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */ 619 EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */ 620 extern Char *ffile; /* Name of shell file for $0 */ 621 extern int dolzero; /* if $?0 should return true... */ 622 623 extern char *seterr; /* Error message from scanner/parser */ 624 #ifndef errno 625 extern int errno; /* Error from C library routines */ 626 #endif 627 extern int exitset; 628 EXTERN Char *shtemp IZERO; /* Temp name for << shell files in /tmp */ 629 630 #ifdef BSDTIMES 631 EXTERN struct timeval time0; /* Time at which the shell started */ 632 EXTERN struct sysrusage ru0; 633 #else 634 # ifdef _SEQUENT_ 635 EXTERN timeval_t time0; /* time at which shell started */ 636 EXTERN struct process_stats ru0; 637 # else /* _SEQUENT_ */ 638 # ifndef POSIX 639 EXTERN time_t time0; /* time at which shell started */ 640 # else /* POSIX */ 641 EXTERN clock_t time0; /* time at which shell started */ 642 EXTERN clock_t clk_tck; 643 # endif /* POSIX */ 644 EXTERN struct tms shtimes; /* shell and child times for process timing */ 645 # endif /* _SEQUENT_ */ 646 EXTERN long seconds0; 647 #endif /* BSDTIMES */ 648 649 #ifndef HZ 650 # define HZ 100 /* for division into seconds */ 651 #endif 652 653 /* 654 * Miscellany 655 */ 656 EXTERN Char *doldol; /* Character pid for $$ */ 657 EXTERN int backpid; /* pid of the last background job */ 658 659 /* 660 * Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now 661 * cause pid's could be unsigned and that would break our -1 flag, and 662 * uid_t and gid_t are not defined in all the systems so I would have to 663 * make special cases for them. In the future... 664 */ 665 EXTERN uid_t uid, euid; /* Invokers real and effective */ 666 EXTERN gid_t gid, egid; /* User and group ids */ 667 EXTERN pid_t opgrp, /* Initial pgrp and tty pgrp */ 668 shpgrp, /* Pgrp of shell */ 669 tpgrp; /* Terminal process group */ 670 /* If tpgrp is -1, leave tty alone! */ 671 672 EXTERN Char PromptBuf[INBUFSIZE*2]; /* buffer for the actual printed prompt. 673 * this must be large enough to contain 674 * the input line and the prompt, in 675 * case a correction occurred... 676 */ 677 EXTERN Char RPromptBuf[INBUFSIZE]; /* buffer for right-hand side prompt */ 678 679 /* 680 * To be able to redirect i/o for builtins easily, the shell moves the i/o 681 * descriptors it uses away from 0,1,2. 682 * Ideally these should be in units which are closed across exec's 683 * (this saves work) but for version 6, this is not usually possible. 684 * The desired initial values for these descriptors are defined in 685 * sh.local.h. 686 */ 687 EXTERN int SHIN IZERO; /* Current shell input (script) */ 688 EXTERN int SHOUT IZERO; /* Shell output */ 689 EXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */ 690 EXTERN int OLDSTD IZERO; /* Old standard input (def for cmds) */ 691 692 693 #if SYSVREL == 4 && defined(_UTS) 694 /* 695 * From: fadden@uts.amdahl.com (Andy McFadden) 696 * we need sigsetjmp for UTS4, but not UTS2.1 697 */ 698 # define SIGSETJMP 699 #endif 700 701 /* 702 * Error control 703 * 704 * Errors in scanning and parsing set up an error message to be printed 705 * at the end and complete. Other errors always cause a reset. 706 * Because of source commands and .cshrc we need nested error catches. 707 */ 708 709 #ifdef NO_STRUCT_ASSIGNMENT 710 711 # ifdef SIGSETJMP 712 typedef sigjmp_buf jmp_buf_t; 713 /* bugfix by Jak Kirman @ Brown U.: remove the (void) cast here, see sh.c */ 714 # define setexit() sigsetjmp(reslab) 715 # define reset() siglongjmp(reslab, 1) 716 # else 717 typedef jmp_buf jmp_buf_t; 718 /* bugfix by Jak Kirman @ Brown U.: remove the (void) cast here, see sh.c */ 719 # define setexit() setjmp(reslab) 720 # define reset() longjmp(reslab, 1) 721 # endif 722 # define getexit(a) (void) memmove((ptr_t)&(a), (ptr_t)&reslab, sizeof(reslab)) 723 # define resexit(a) (void) memmove((ptr_t)&reslab, (ptr_t)&(a), sizeof(reslab)) 724 725 # define cpybin(a, b) (void) memmove((ptr_t)&(a), (ptr_t)&(b), sizeof(Bin)) 726 727 #else 728 729 # ifdef SIGSETJMP 730 typedef struct { sigjmp_buf j; } jmp_buf_t; 731 # define setexit() sigsetjmp(reslab.j) 732 # define reset() siglongjmp(reslab.j, 1) 733 # else 734 typedef struct { jmp_buf j; } jmp_buf_t; 735 # define setexit() setjmp(reslab.j) 736 # define reset() longjmp(reslab.j, 1) 737 # endif 738 739 # define getexit(a) (void) ((a) = reslab) 740 # define resexit(a) (void) (reslab = (a)) 741 742 # define cpybin(a, b) (void) ((a) = (b)) 743 744 #endif /* NO_STRUCT_ASSIGNMENT */ 745 746 extern jmp_buf_t reslab; 747 748 EXTERN Char *gointr; /* Label for an onintr transfer */ 749 750 extern signalfun_t parintr; /* Parents interrupt catch */ 751 extern signalfun_t parterm; /* Parents terminate catch */ 752 753 /* 754 * Lexical definitions. 755 * 756 * All lexical space is allocated dynamically. 757 * The eighth/sixteenth bit of characters is used to prevent recognition, 758 * and eventually stripped. 759 */ 760 #define META 0200 761 #define ASCII 0177 762 #ifdef WIDE_STRINGS /* Implies SHORT_STRINGS */ 763 /* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */ 764 # define QUOTE 0x40000000 765 # define TRIM 0x3FFFFFFF /* Mask to strip quote bit */ 766 # define UNDER 0x20000000 /* Underline flag */ 767 # define BOLD 0x10000000 /* Bold flag */ 768 # define STANDOUT 0x08000000 /* Standout flag */ 769 # define LITERAL 0x04000000 /* Literal character flag */ 770 # define ATTRIBUTES 0x3C000000 /* The bits used for attributes */ 771 # define INVALID_BYTE 0x00200000 /* Invalid character on input */ 772 # define CHAR 0x003FFFFF /* Mask to mask out the character */ 773 #elif defined (SHORT_STRINGS) 774 # define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */ 775 # define TRIM 0073777 /* Mask to strip quote/lit bit */ 776 # define UNDER 0040000 /* Underline flag */ 777 # define BOLD 0020000 /* Bold flag */ 778 # define STANDOUT 0010000 /* Standout flag */ 779 # define LITERAL 0004000 /* Literal character flag */ 780 # define ATTRIBUTES 0074000 /* The bits used for attributes */ 781 # define INVALID_BYTE 0 782 # define CHAR 0000377 /* Mask to mask out the character */ 783 #else 784 # define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */ 785 # define TRIM 0177 /* Mask to strip quote bit */ 786 # define UNDER 0000000 /* No extra bits to do both */ 787 # define BOLD 0000000 /* Bold flag */ 788 # define STANDOUT META /* Standout flag */ 789 # define LITERAL 0000000 /* Literal character flag */ 790 # define ATTRIBUTES 0200 /* The bits used for attributes */ 791 # define INVALID_BYTE 0 792 # define CHAR 0000177 /* Mask to mask out the character */ 793 #endif 794 #define CHAR_DBWIDTH (LITERAL|(LITERAL-1)) 795 796 EXTERN int AsciiOnly; /* If set only 7 bits expected in characters */ 797 798 /* 799 * Each level of input has a buffered input structure. 800 * There are one or more blocks of buffered input for each level, 801 * exactly one if the input is seekable and tell is available. 802 * In other cases, the shell buffers enough blocks to keep all loops 803 * in the buffer. 804 */ 805 EXTERN struct Bin { 806 off_t Bfseekp; /* Seek pointer, generally != lseek() value */ 807 off_t Bfbobp; /* Seekp of beginning of buffers */ 808 off_t Bfeobp; /* Seekp of end of buffers */ 809 int Bfblocks; /* Number of buffer blocks */ 810 Char **Bfbuf; /* The array of buffer blocks */ 811 #ifdef WIDE_STRINGS 812 /* Number of bytes in each character if (cantell) */ 813 unsigned char Bfclens[BUFSIZE + 1]; 814 #endif 815 } B; 816 817 /* 818 * This structure allows us to seek inside aliases 819 */ 820 struct Ain { 821 int type; 822 #define TCSH_I_SEEK 0 /* Invalid seek */ 823 #define TCSH_A_SEEK 1 /* Alias seek */ 824 #define TCSH_F_SEEK 2 /* File seek */ 825 #define TCSH_E_SEEK 3 /* Eval seek */ 826 union { 827 off_t _f_seek; 828 Char* _c_seek; 829 } fc; 830 #define f_seek fc._f_seek 831 #define c_seek fc._c_seek 832 Char **a_seek; 833 } ; 834 835 extern int aret; /* Type of last char returned */ 836 #define SEEKEQ(a, b) ((a)->type == (b)->type && \ 837 (a)->f_seek == (b)->f_seek && \ 838 (a)->a_seek == (b)->a_seek) 839 840 #define fseekp B.Bfseekp 841 #define fbobp B.Bfbobp 842 #define feobp B.Bfeobp 843 #define fblocks B.Bfblocks 844 #define fbuf B.Bfbuf 845 #define fclens B.Bfclens 846 847 /* 848 * The shell finds commands in loops by reseeking the input 849 * For whiles, in particular, it reseeks to the beginning of the 850 * line the while was on; hence the while placement restrictions. 851 */ 852 EXTERN struct Ain lineloc; 853 854 EXTERN int cantell; /* Is current source tellable ? */ 855 856 /* 857 * Input lines are parsed into doubly linked circular 858 * lists of words of the following form. 859 */ 860 struct wordent { 861 Char *word; 862 struct wordent *prev; 863 struct wordent *next; 864 }; 865 866 /* 867 * During word building, both in the initial lexical phase and 868 * when expanding $ variable substitutions, expansion by `!' and `$' 869 * must be inhibited when reading ahead in routines which are themselves 870 * processing `!' and `$' expansion or after characters such as `\' or in 871 * quotations. The following flags are passed to the getC routines 872 * telling them which of these substitutions are appropriate for the 873 * next character to be returned. 874 */ 875 #define DODOL 1 876 #define DOEXCL 2 877 #define DOALL DODOL|DOEXCL 878 879 /* 880 * Labuf implements a general buffer for lookahead during lexical operations. 881 * Text which is to be placed in the input stream can be stuck here. 882 * We stick parsed ahead $ constructs during initial input, 883 * process id's from `$$', and modified variable values (from qualifiers 884 * during expansion in sh.dol.c) here. 885 */ 886 EXTERN Char *lap; 887 888 /* 889 * Parser structure 890 * 891 * Each command is parsed to a tree of command structures and 892 * flags are set bottom up during this process, to be propagated down 893 * as needed during the semantics/exeuction pass (sh.sem.c). 894 */ 895 struct command { 896 unsigned char t_dtyp; /* Type of node */ 897 #define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */ 898 #define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */ 899 #define NODE_PIPE 3 /* t_dlef | t_drit */ 900 #define NODE_LIST 4 /* t_dlef ; t_drit */ 901 #define NODE_OR 5 /* t_dlef || t_drit */ 902 #define NODE_AND 6 /* t_dlef && t_drit */ 903 unsigned char t_nice; /* Nice value */ 904 #ifdef apollo 905 unsigned char t_systype; /* System environment */ 906 #endif 907 unsigned long t_dflg; /* Flags, e.g. F_AMPERSAND|... */ 908 /* save these when re-doing */ 909 #ifndef apollo 910 #define F_SAVE (F_NICE|F_TIME|F_NOHUP|F_HUP) 911 #else 912 #define F_SAVE (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER) 913 #endif 914 #define F_AMPERSAND (1<<0) /* executes in background */ 915 #define F_APPEND (1<<1) /* output is redirected >> */ 916 #define F_PIPEIN (1<<2) /* input is a pipe */ 917 #define F_PIPEOUT (1<<3) /* output is a pipe */ 918 #define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */ 919 #define F_NOINTERRUPT (1<<5) /* should be immune from intr's */ 920 /* spare */ 921 #define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */ 922 #define F_OVERWRITE (1<<8) /* output was ! */ 923 #define F_READ (1<<9) /* input redirection is << */ 924 #define F_REPEAT (1<<10) /* reexec aft if, repeat,... */ 925 #define F_NICE (1<<11) /* t_nice is meaningful */ 926 #define F_NOHUP (1<<12) /* nohup this command */ 927 #define F_TIME (1<<13) /* time this command */ 928 #define F_BACKQ (1<<14) /* command is in `` */ 929 #define F_HUP (1<<15) /* hup this command */ 930 #ifdef apollo 931 #define F_VER (1<<16) /* execute command under SYSTYPE */ 932 #endif 933 union { 934 Char *T_dlef; /* Input redirect word */ 935 struct command *T_dcar; /* Left part of list/pipe */ 936 } L; 937 union { 938 Char *T_drit; /* Output redirect word */ 939 struct command *T_dcdr; /* Right part of list/pipe */ 940 } R; 941 #define t_dlef L.T_dlef 942 #define t_dcar L.T_dcar 943 #define t_drit R.T_drit 944 #define t_dcdr R.T_dcdr 945 Char **t_dcom; /* Command/argument vector */ 946 struct command *t_dspr; /* Pointer to ()'d subtree */ 947 }; 948 949 950 /* 951 * The keywords for the parser 952 */ 953 #define TC_BREAK 0 954 #define TC_BRKSW 1 955 #define TC_CASE 2 956 #define TC_DEFAULT 3 957 #define TC_ELSE 4 958 #define TC_END 5 959 #define TC_ENDIF 6 960 #define TC_ENDSW 7 961 #define TC_EXIT 8 962 #define TC_FOREACH 9 963 #define TC_GOTO 10 964 #define TC_IF 11 965 #define TC_LABEL 12 966 #define TC_LET 13 967 #define TC_SET 14 968 #define TC_SWITCH 15 969 #define TC_TEST 16 970 #define TC_THEN 17 971 #define TC_WHILE 18 972 973 /* 974 * These are declared here because they want to be 975 * initialized in sh.init.c (to allow them to be made readonly) 976 */ 977 978 #if defined(hpux) && defined(__STDC__) && !defined(__GNUC__) 979 /* Avoid hpux ansi mode spurious warnings */ 980 typedef void (*bfunc_t) (); 981 #else 982 typedef void (*bfunc_t) __P((Char **, struct command *)); 983 #endif /* hpux && __STDC__ && !__GNUC__ */ 984 985 extern struct biltins { 986 const char *bname; 987 bfunc_t bfunct; 988 int minargs, maxargs; 989 } bfunc[]; 990 extern int nbfunc; 991 #ifdef WINNT_NATIVE 992 extern struct biltins nt_bfunc[]; 993 extern int nt_nbfunc; 994 #endif /* WINNT_NATIVE*/ 995 extern int bequiet; 996 997 extern struct srch { 998 const char *s_name; 999 int s_value; 1000 } srchn[]; 1001 extern int nsrchn; 1002 1003 /* 1004 * Structure defining the existing while/foreach loops at this 1005 * source level. Loops are implemented by seeking back in the 1006 * input. For foreach (fe), the word list is attached here. 1007 */ 1008 EXTERN struct whyle { 1009 struct Ain w_start; /* Point to restart loop */ 1010 struct Ain w_end; /* End of loop (0 if unknown) */ 1011 Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */ 1012 Char *w_fename; /* Name for fe */ 1013 struct whyle *w_next; /* Next (more outer) loop */ 1014 } *whyles; 1015 1016 /* 1017 * Variable structure 1018 * 1019 * Aliases and variables are stored in AVL balanced binary trees. 1020 */ 1021 EXTERN struct varent { 1022 Char **vec; /* Array of words which is the value */ 1023 Char *v_name; /* Name of variable/alias */ 1024 int v_flags; /* Flags */ 1025 #define VAR_ALL -1 1026 #define VAR_READONLY 1 1027 #define VAR_READWRITE 2 1028 #define VAR_NOGLOB 4 1029 #define VAR_FIRST 32 1030 #define VAR_LAST 64 1031 struct varent *v_link[3]; /* The links, see below */ 1032 int v_bal; /* Balance factor */ 1033 } shvhed IZERO_STRUCT, aliases IZERO_STRUCT; 1034 1035 #define v_left v_link[0] 1036 #define v_right v_link[1] 1037 #define v_parent v_link[2] 1038 1039 #define adrof(v) adrof1(v, &shvhed) 1040 #define varval(v) value1(v, &shvhed) 1041 1042 /* 1043 * The following are for interfacing redo substitution in 1044 * aliases to the lexical routines. 1045 */ 1046 EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */ 1047 EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */ 1048 EXTERN Char **alvec IZERO_STRUCT, 1049 *alvecp IZERO_STRUCT;/* The (remnants of) alias vector */ 1050 1051 /* 1052 * Filename/command name expansion variables 1053 */ 1054 EXTERN int gflag; /* After tglob -> is globbing needed? */ 1055 1056 #define MAXVARLEN 256 /* Maximum number of char in a variable name */ 1057 1058 #ifdef __CYGWIN__ 1059 # undef MAXPATHLEN 1060 #endif /* __CYGWIN__ */ 1061 1062 #ifndef MAXPATHLEN 1063 # define MAXPATHLEN 2048 1064 #endif /* MAXPATHLEN */ 1065 1066 #ifndef MAXNAMLEN 1067 # define MAXNAMLEN 512 1068 #endif /* MAXNAMLEN */ 1069 1070 #ifndef HAVENOLIMIT 1071 /* 1072 * resource limits 1073 */ 1074 extern struct limits { 1075 int limconst; 1076 const char *limname; 1077 int limdiv; 1078 const char *limscale; 1079 } limits[]; 1080 #endif /* !HAVENOLIMIT */ 1081 1082 /* 1083 * Variables for filename expansion 1084 */ 1085 extern Char **gargv; /* Pointer to the (stack) arglist */ 1086 extern int gargc; /* Number args in gargv */ 1087 1088 /* 1089 * Variables for command expansion. 1090 */ 1091 extern Char **pargv; /* Pointer to the argv list space */ 1092 EXTERN Char *pargs; /* Pointer to start current word */ 1093 EXTERN long pnleft; /* Number of chars left in pargs */ 1094 EXTERN Char *pargcp; /* Current index into pargs */ 1095 1096 /* 1097 * History list 1098 * 1099 * Each history list entry contains an embedded wordlist 1100 * from the scanner, a number for the event, and a reference count 1101 * to aid in discarding old entries. 1102 * 1103 * Essentially "invisible" entries are put on the history list 1104 * when history substitution includes modifiers, and thrown away 1105 * at the next discarding since their event numbers are very negative. 1106 */ 1107 EXTERN struct Hist { 1108 struct wordent Hlex; 1109 int Hnum; 1110 int Href; 1111 time_t Htime; 1112 Char *histline; 1113 struct Hist *Hnext; 1114 } Histlist IZERO_STRUCT; 1115 1116 EXTERN struct wordent paraml; /* Current lexical word list */ 1117 EXTERN int eventno; /* Next events number */ 1118 EXTERN int lastev; /* Last event reference (default) */ 1119 1120 EXTERN Char HIST; /* history invocation character */ 1121 EXTERN Char HISTSUB; /* auto-substitute character */ 1122 EXTERN Char PRCH; /* Prompt symbol for regular users */ 1123 EXTERN Char PRCHROOT; /* Prompt symbol for root */ 1124 1125 /* 1126 * For operating systems with single case filenames (OS/2) 1127 */ 1128 #ifdef CASE_INSENSITIVE 1129 # ifdef WIDE_STRINGS 1130 # define samecase(x) (towlower(x)) 1131 # else 1132 # define samecase(x) (isupper((unsigned char)(x)) ? \ 1133 tolower((unsigned char)(x)) : (x)) 1134 # endif 1135 #else 1136 # define samecase(x) (x) 1137 #endif /* CASE_INSENSITIVE */ 1138 1139 /* 1140 * strings.h: 1141 */ 1142 #ifndef SHORT_STRINGS 1143 #define Strchr(a, b) strchr(a, b) 1144 #define Strrchr(a, b) strrchr(a, b) 1145 #define Strcat(a, b) strcat(a, b) 1146 #define Strncat(a, b, c) strncat(a, b, c) 1147 #define Strcpy(a, b) strcpy(a, b) 1148 #define Strncpy(a, b, c) strncpy(a, b, c) 1149 #define Strlen(a) strlen(a) 1150 #define Strcmp(a, b) strcmp(a, b) 1151 #define Strncmp(a, b, c) strncmp(a, b, c) 1152 #define Strcasecmp(a, b) strcasecmp(a, b) 1153 1154 #define Strspl(a, b) strspl(a, b) 1155 #define Strsave(a) strsave(a) 1156 #define Strend(a) strend(a) 1157 #define Strstr(a, b) strstr(a, b) 1158 1159 #define str2short(a) (a) 1160 #define blk2short(a) saveblk(a) 1161 #define short2blk(a) saveblk(a) 1162 #define short2str(a) strip(a) 1163 #else 1164 #ifdef WIDE_STRINGS 1165 #define Strchr(a, b) wcschr(a, b) 1166 #define Strrchr(a, b) wcsrchr(a, b) 1167 #define Strcat(a, b) wcscat(a, b) 1168 #define Strncat(a, b, c) wcsncat(a, b, c) 1169 #define Strcpy(a, b) wcscpy(a, b) 1170 #define Strncpy(a, b, c) wcsncpy(a, b, c) 1171 #define Strlen(a) wcslen(a) 1172 #define Strcmp(a, b) wcscmp(a, b) 1173 #define Strncmp(a, b, c) wcsncmp(a, b, c) 1174 #else 1175 #define Strchr(a, b) s_strchr(a, b) 1176 #define Strrchr(a, b) s_strrchr(a, b) 1177 #define Strcat(a, b) s_strcat(a, b) 1178 #define Strncat(a, b, c) s_strncat(a, b, c) 1179 #define Strcpy(a, b) s_strcpy(a, b) 1180 #define Strncpy(a, b, c) s_strncpy(a, b, c) 1181 #define Strlen(a) s_strlen(a) 1182 #define Strcmp(a, b) s_strcmp(a, b) 1183 #define Strncmp(a, b, c) s_strncmp(a, b, c) 1184 #endif 1185 #define Strcasecmp(a, b) s_strcasecmp(a, b) 1186 1187 #define Strspl(a, b) s_strspl(a, b) 1188 #define Strsave(a) s_strsave(a) 1189 #define Strend(a) s_strend(a) 1190 #define Strstr(a, b) s_strstr(a, b) 1191 #endif 1192 1193 /* 1194 * setname is a macro to save space (see sh.err.c) 1195 */ 1196 EXTERN const char *bname; 1197 1198 #define setname(a) (bname = (a)) 1199 1200 #ifdef VFORK 1201 EXTERN Char *Vsav; 1202 EXTERN Char *Vdp; 1203 EXTERN Char *Vexpath; 1204 EXTERN char **Vt; 1205 #endif /* VFORK */ 1206 1207 EXTERN Char **evalvec; 1208 EXTERN Char *evalp; 1209 1210 extern struct mesg { 1211 const char *iname; /* name from /usr/include */ 1212 const char *pname; /* print name */ 1213 } mesg[]; 1214 1215 /* word_chars is set by default to WORD_CHARS but can be overridden by 1216 the worchars variable--if unset, reverts to WORD_CHARS */ 1217 1218 EXTERN Char *word_chars; 1219 1220 #define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ 1221 1222 EXTERN Char *STR_SHELLPATH; 1223 1224 #ifdef _PATH_BSHELL 1225 EXTERN Char *STR_BSHELL; 1226 #endif 1227 EXTERN Char *STR_WORD_CHARS; 1228 EXTERN Char **STR_environ IZERO; 1229 1230 extern int dont_free; /* Tell free that we are in danger if we free */ 1231 1232 extern Char *INVPTR; 1233 extern Char **INVPPTR; 1234 1235 extern char *progname; 1236 extern int tcsh; 1237 extern int xlate_cr; 1238 extern int output_raw; 1239 extern int lbuffed; 1240 extern time_t Htime; 1241 extern int numeof; 1242 extern int insource; 1243 extern char linbuf[]; 1244 extern char *linp; 1245 extern int nsig; 1246 #ifdef VFORK 1247 extern int use_fork; 1248 #endif 1249 extern int tellwhat; 1250 extern int NoNLSRebind; 1251 1252 #include "tc.h" 1253 1254 #ifndef WINNT_NATIVE 1255 # ifdef NLS_CATALOGS 1256 # if defined(linux) || defined(__GNU__) || defined(__GLIBC__) 1257 # include <locale.h> 1258 # ifdef notdef 1259 # include <localeinfo.h> /* Has this changed ? */ 1260 # endif 1261 # include <features.h> 1262 # endif 1263 # ifdef SUNOS4 1264 /* Who stole my nl_types.h? :-( 1265 * All this stuff is in the man pages, but nowhere else? 1266 * This does not link right now... 1267 */ 1268 typedef void *nl_catd; 1269 extern const char * catgets __P((nl_catd, int, int, const char *)); 1270 nl_catd catopen __P((const char *, int)); 1271 int catclose __P((nl_catd)); 1272 # else 1273 # ifdef __uxps__ 1274 # define gettxt gettxt_ds 1275 # endif 1276 # include <nl_types.h> 1277 # ifdef __uxps__ 1278 # undef gettxt 1279 # endif 1280 # endif 1281 # ifndef MCLoadBySet 1282 # define MCLoadBySet 0 1283 # endif 1284 EXTERN nl_catd catd; 1285 # ifdef HAVE_ICONV 1286 # define CGETS(b, c, d) iconv_catgets(catd, b, c, d) 1287 # else 1288 # define CGETS(b, c, d) catgets(catd, b, c, d) 1289 # endif 1290 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1291 # else 1292 # define CGETS(b, c, d) d 1293 # define CSAVS(b, c, d) d 1294 # endif 1295 #else /* WINNT_NATIVE */ 1296 # define CGETS(b, c, d) nt_cgets( b, c, d) 1297 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1298 #endif /* WINNT_NATIVE */ 1299 1300 #if defined(FILEC) 1301 extern int filec; 1302 #endif /* FILEC */ 1303 1304 #include "sh.decls.h" 1305 /* 1306 * Since on some machines characters are unsigned, and the signed 1307 * keyword is not universally implemented, we treat all characters 1308 * as unsigned and sign extend them where we need. 1309 */ 1310 #define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a)) 1311 1312 /* 1313 * explanation for use by the "--help" option 1314 */ 1315 #define HELP_STRING "\ 1316 -b file batch mode, read and execute commands from `file' \n\ 1317 -c command run `command' from next argument \n\ 1318 -d load directory stack from `~/.cshdirs' \n\ 1319 -Dname[=value] define environment variable `name' to `value' (DomainOS only) \n\ 1320 -e exit on any error \n\ 1321 -f start faster by ignoring the start-up file \n\ 1322 -F use fork() instead of vfork() when spawning (ConvexOS only) \n\ 1323 -i interactive, even when input is not from a terminal \n\ 1324 -l act as a login shell, must be the only option specified \n\ 1325 -m load the start-up file, whether or not owned by effective user \n\ 1326 -n file no execute mode, just check syntax of the following `file' \n\ 1327 -q accept SIGQUIT for running under a debugger \n\ 1328 -s read commands from standard input \n\ 1329 -t read one line from standard input \n\ 1330 -v echo commands after history substitution \n\ 1331 -V like -v but including commands read from the start-up file \n\ 1332 -x echo commands immediately before execution \n\ 1333 -X like -x but including commands read from the start-up file \n\ 1334 --help print this message and exit \n\ 1335 --version print the version shell variable and exit \n\ 1336 \nSee the tcsh(1) manual page for detailed information.\n" 1337 1338 #include "tc.nls.h" 1339 1340 #endif /* _h_sh */ 1341