1 /* 2 * sh.h: Catch it all globals and includes file! 3 */ 4 /*- 5 * Copyright (c) 1980, 1991 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 #ifndef _h_sh 33 #define _h_sh 34 35 #include "config.h" 36 37 #include <stddef.h> 38 #include <signal.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 xread 76 #endif /*!WINNT_NATIVE */ 77 78 #if defined(KANJI) && defined(WIDE_STRINGS) && defined(HAVE_NL_LANGINFO) && defined(CODESET) 79 #define AUTOSET_KANJI 80 #endif 81 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 # define TCSH_S "S" 97 # ifdef WIDE_STRINGS 98 #include <wchar.h> 99 # ifdef UTF16_STRINGS 100 typedef wint_t Char; 101 # else 102 typedef wchar_t Char; 103 # endif 104 typedef unsigned long uChar; 105 typedef wint_t eChar; /* Can contain any Char value or CHAR_ERR */ 106 #define CHAR_ERR WEOF /* Pretty please, use bit 31... */ 107 #define normal_mbtowc(PWC, S, N) rt_mbtowc(PWC, S, N) 108 #define reset_mbtowc() TCSH_IGNORE(mbtowc(NULL, NULL, 0)) 109 # else 110 typedef short Char; 111 typedef unsigned short uChar; 112 typedef int eChar; 113 #define CHAR_ERR (-1) 114 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 115 #define reset_mbtowc() ((void)0) 116 # endif 117 # define SAVE(a) (Strsave(str2short(a))) 118 #else 119 #define TCSH_S "s" 120 typedef char Char; 121 typedef unsigned char uChar; 122 typedef int eChar; 123 #define CHAR_ERR (-1) 124 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 125 #define reset_mbtowc() ((void)0) 126 # define SAVE(a) (strsave(a)) 127 #endif 128 129 #if !defined(__inline) && !defined(__GNUC__) && !defined(_MSC_VER) 130 #define __inline 131 #endif 132 #ifdef _MSC_VER 133 #define TCSH_PTRDIFF_T_FMT "I" 134 #else 135 #define TCSH_PTRDIFF_T_FMT "t" 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 /* values for noclobber */ 199 #define NOCLOBBER_DEFAULT 1 200 #define NOCLOBBER_NOTEMPTY 2 201 #define NOCLOBBER_ASK 4 202 203 /* 204 * The shell moves std in/out/diag and the old std input away from units 205 * 0, 1, and 2 so that it is easy to set up these standards for invoked 206 * commands. 207 */ 208 #define FSAFE 5 /* We keep the first 5 descriptors untouched */ 209 #define FSHTTY 15 /* /dev/tty when manip pgrps */ 210 #define FSHIN 16 /* Preferred desc for shell input */ 211 #define FSHOUT 17 /* ... shell output */ 212 #define FSHDIAG 18 /* ... shell diagnostics */ 213 #define FOLDSTD 19 /* ... old std input */ 214 215 #ifdef PROF 216 #define xexit(n) done(n) 217 #endif 218 219 #ifdef cray 220 # define word word_t /* sys/types.h defines word.. bad move! */ 221 #endif 222 223 #include <sys/types.h> 224 225 #ifdef cray 226 # undef word 227 #endif 228 229 /* 230 * Path separator in environment variables 231 */ 232 #ifndef PATHSEP 233 # if defined(__EMX__) || defined(WINNT_NATIVE) 234 # define PATHSEP ';' 235 # else /* unix */ 236 # define PATHSEP ':' 237 # endif /* __EMX__ || WINNT_NATIVE */ 238 #endif /* !PATHSEP */ 239 240 #if defined(__HP_CXD_SPP) && !defined(__hpux) 241 # include <sys/cnx_stat.h> 242 # define stat stat64 243 # define fstat fstat64 244 # define lstat lstat64 245 #endif /* __HP_CXD_SPP && !__hpux */ 246 247 #ifdef HAVE_LONG_LONG 248 typedef long long tcsh_number_t; 249 #else 250 typedef long tcsh_number_t; 251 #endif 252 /* 253 * This macro compares the st_dev field of struct stat. On aix on ibmESA 254 * st_dev is a structure, so comparison does not work. 255 */ 256 #ifndef DEV_DEV_COMPARE 257 # define DEV_DEV_COMPARE(x,y) ((x) == (y)) 258 #endif /* DEV_DEV_COMPARE */ 259 260 #ifdef _SEQUENT_ 261 # include <sys/procstats.h> 262 #endif /* _SEQUENT_ */ 263 #if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE) 264 # include <sys/times.h> 265 #endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */ 266 267 #ifdef NLS 268 # include <locale.h> 269 #endif /* NLS */ 270 271 #if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__) 272 # include <sys/param.h> 273 #endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */ 274 #include <sys/stat.h> 275 276 #if defined(BSDTIMES) || defined(BSDLIMIT) 277 # include <sys/time.h> 278 # if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__) 279 # include "/usr/ucbinclude/sys/resource.h" 280 # else 281 # ifdef convex 282 # define sysrusage cvxrusage 283 # include <sys/sysinfo.h> 284 # else 285 # define sysrusage rusage 286 # include <sys/resource.h> 287 # endif /* convex */ 288 # endif /* SYSVREL>3 */ 289 #endif /* BSDTIMES */ 290 291 #ifndef WINNT_NATIVE 292 # ifndef POSIX 293 # ifdef TERMIO 294 # include <termio.h> 295 # else /* SGTTY */ 296 # include <sgtty.h> 297 # endif /* TERMIO */ 298 # else /* POSIX */ 299 # ifndef _UWIN 300 # include <termios.h> 301 # else 302 # include <termio.h> 303 # endif /* _UWIN */ 304 # if SYSVREL > 3 || defined(__linux__) 305 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 306 # undef TIOCSLTC 307 # undef CSWTCH 308 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 309 # endif /* SYSVREL > 3 */ 310 # endif /* POSIX */ 311 #endif /* WINNT_NATIVE */ 312 313 #ifdef sonyrisc 314 # include <sys/ttold.h> 315 #endif /* sonyrisc */ 316 317 #if defined(POSIX) && !defined(WINNT_NATIVE) 318 # include <unistd.h> 319 320 /* 321 * the gcc+protoize version of <stdlib.h> 322 * redefines malloc(), so we define the following 323 * to avoid it. 324 */ 325 # if defined(SYSMALLOC) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX) || defined(__OpenBSD__) 326 # define NO_FIX_MALLOC 327 # include <stdlib.h> 328 # else /* glibc */ 329 # define _GNU_STDLIB_H 330 # define malloc __malloc 331 # define free __free 332 # define calloc __calloc 333 # define realloc __realloc 334 # include <stdlib.h> 335 # undef malloc 336 # undef free 337 # undef calloc 338 # undef realloc 339 # endif /* glibc || sgi */ 340 #endif /* POSIX && !WINNT_NATIVE */ 341 #include <limits.h> 342 343 #if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) 344 # if !defined(pyr) && !defined(stellar) 345 # include <time.h> 346 # ifdef _MINIX 347 # define HZ CLOCKS_PER_SEC 348 # endif /* _MINIX */ 349 # endif /* !pyr && !stellar */ 350 #endif /* SYSVREL > 0 || _IBMR2 */ 351 352 /* In the following ifdef the DECOSF1 has been commented so that later 353 * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions... 354 */ 355 #if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO)) 356 # if !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) 357 # include <sys/ioctl.h> 358 # if SYSVREL > 3 || defined(__linux__) 359 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 360 # undef TIOCSLTC 361 # undef CSWTCH 362 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 363 # endif /* SYSVREL > 3 */ 364 # endif 365 #endif 366 367 #if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX) 368 #undef CSWTCH 369 #define CSWTCH _POSIX_VDISABLE 370 #endif 371 372 #if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__) 373 # include <sys/filio.h> 374 #endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */ 375 376 #if !defined(_MINIX) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D) 377 # include <sys/file.h> 378 #endif /* !_MINIX && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */ 379 380 #if !defined(O_RDONLY) || !defined(O_NDELAY) 381 # include <fcntl.h> 382 #endif 383 384 #include <errno.h> 385 386 #include <setjmp.h> 387 388 #include <stdarg.h> 389 390 #ifdef HAVE_DIRENT_H 391 # include <dirent.h> 392 #else 393 # ifdef HAVE_NDIR_H 394 # include <ndir.h> 395 # else 396 # include <sys/dir.h> 397 # endif 398 # define dirent direct 399 #endif /* HAVE_DIRENT_H */ 400 #ifndef HAVE_STRUCT_DIRENT_D_INO 401 # define d_ino d_fileno 402 #endif 403 #if defined(hpux) || defined(sgi) || defined(OREO) 404 # include <stdio.h> /* So the fgetpwent() prototypes work */ 405 #endif /* hpux || sgi || OREO */ 406 #ifndef WINNT_NATIVE 407 #include <pwd.h> 408 #include <grp.h> 409 #endif /* WINNT_NATIVE */ 410 #ifdef HAVE_SHADOW_H 411 # include <shadow.h> 412 #endif /* HAVE_SHADOW_H */ 413 #ifdef HAVE_AUTH_H 414 # include <auth.h> 415 #endif /* HAVE_AUTH_H */ 416 #if defined(BSD) && !defined(POSIX) 417 # include <strings.h> 418 # define strchr(a, b) index(a, b) 419 # define strrchr(a, b) rindex(a, b) 420 #else 421 # include <string.h> 422 #endif /* BSD */ 423 424 /* 425 * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not 426 * include it yet, so we include it here 427 */ 428 #if defined(sgi) && SYSVREL > 3 429 # include <sys/cdefs.h> 430 #endif /* sgi && SYSVREL > 3 */ 431 432 #ifdef REMOTEHOST 433 # ifdef ISC 434 # undef MAXHOSTNAMELEN /* Busted headers? */ 435 # endif 436 437 # include <netinet/in.h> 438 # include <arpa/inet.h> 439 # include <sys/socket.h> 440 # if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) 441 # if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */ 442 # if !defined(sgi) 443 # define INET6 444 # endif /* sgi */ 445 # endif /* __APPLE__ */ 446 # endif 447 # include <sys/uio.h> /* For struct iovec */ 448 #endif /* REMOTEHOST */ 449 450 #ifdef PURIFY 451 /* exit normally, allowing purify to trace leaks */ 452 # define _exit exit 453 #endif /* !PURIFY */ 454 455 /* 456 * ASCII vs. EBCDIC 457 */ 458 #if 'Z' - 'A' == 25 459 # ifndef IS_ASCII 460 # define IS_ASCII 461 # endif 462 #endif 463 464 #include "sh.types.h" 465 466 #if !HAVE_DECL_GETPGRP 467 # ifndef GETPGRP_VOID 468 extern pid_t getpgrp (int); 469 # else 470 extern pid_t getpgrp (void); 471 # endif 472 #endif 473 474 #ifndef lint 475 typedef ptr_t memalign_t; 476 #else 477 typedef union { 478 char am_char, *am_char_p; 479 short am_short, *am_short_p; 480 int am_int, *am_int_p; 481 long am_long, *am_long_p; 482 float am_float, *am_float_p; 483 double am_double, *am_double_p; 484 } *memalign_t; 485 486 # define malloc lint_malloc 487 # define free lint_free 488 # define realloc lint_realloc 489 # define calloc lint_calloc 490 #endif 491 492 #ifdef SYSMALLOC 493 # define xmalloc(i) smalloc(i) 494 # define xrealloc(p, i) srealloc(p, i) 495 # define xcalloc(n, s) scalloc(n, s) 496 # define xfree sfree 497 #else 498 # define xmalloc(i) malloc(i) 499 # define xrealloc(p, i) realloc(p, i) 500 # define xcalloc(n, s) calloc(n, s) 501 # define xfree free 502 #endif /* SYSMALLOC */ 503 #include "sh.char.h" 504 #include "sh.err.h" 505 #include "sh.dir.h" 506 #include "sh.proc.h" 507 508 #include "pathnames.h" 509 510 511 /* 512 * C shell 513 * 514 * Bill Joy, UC Berkeley 515 * October, 1978; May 1980 516 * 517 * Jim Kulp, IIASA, Laxenburg Austria 518 * April, 1980 519 */ 520 521 #ifdef HESIOD 522 # include <hesiod.h> 523 #endif /* HESIOD */ 524 525 #ifdef REMOTEHOST 526 # include <netdb.h> 527 #endif /* REMOTEHOST */ 528 529 #ifndef MAXHOSTNAMELEN 530 # ifdef HOST_NAME_MAX 531 # define MAXHOSTNAMELEN (HOST_NAME_MAX + 1) 532 # elif defined(SCO) && (SYSVREL > 3) 533 # include <sys/socket.h> 534 # else 535 # define MAXHOSTNAMELEN 256 536 # endif 537 #endif /* MAXHOSTNAMELEN */ 538 539 540 541 #define eq(a, b) (Strcmp(a, b) == 0) 542 543 /* globone() flags */ 544 #define G_ERROR 0 /* default action: error if multiple words */ 545 #define G_IGNORE 1 /* ignore the rest of the words */ 546 #define G_APPEND 2 /* make a sentence by cat'ing the words */ 547 548 /* 549 * Global flags 550 */ 551 EXTERN int chkstop IZERO; /* Warned of stopped jobs... allow exit */ 552 553 #if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD) 554 # define CLOSE_ON_EXEC 555 #else 556 EXTERN int didcch IZERO; /* Have closed unused fd's for child */ 557 #endif /* (FIOCLEX && FIONCLEX) || F_SETFD */ 558 559 EXTERN int didfds IZERO; /* Have setup i/o fd's for child */ 560 EXTERN int doneinp IZERO; /* EOF indicator after reset from readc */ 561 EXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */ 562 EXTERN int child IZERO; /* Child shell ... errors cause exit */ 563 EXTERN int haderr IZERO; /* Reset was because of an error */ 564 EXTERN int intty IZERO; /* Input is a tty */ 565 EXTERN int intact IZERO; /* We are interactive... therefore prompt */ 566 EXTERN int justpr IZERO; /* Just print because of :p hist mod */ 567 EXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */ 568 EXTERN int neednote IZERO; /* Need to pnotify() */ 569 EXTERN int noexec IZERO; /* Don't execute, just syntax check */ 570 EXTERN int pjobs IZERO; /* want to print jobs if interrupted */ 571 EXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */ 572 EXTERN int handle_interrupt IZERO;/* Are we currently handling an interrupt? */ 573 EXTERN int havhash IZERO; /* path hashing is available */ 574 EXTERN int editing IZERO; /* doing filename expansion and line editing */ 575 EXTERN int noediting IZERO; /* initial $term defaulted to noedit */ 576 EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */ 577 EXTERN int anyerror IZERO; /* propagate errors from pipelines/backq */ 578 EXTERN int compat_expr IZERO;/* csh-style expressions? */ 579 EXTERN int isoutatty IZERO; /* is SHOUT a tty */ 580 EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */ 581 EXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */ 582 EXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */ 583 EXTERN int arun IZERO; /* Currently running multi-line-aliases */ 584 EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */ 585 EXTERN int cdtohome IZERO; /* cd without args goes home */ 586 EXTERN int inheredoc IZERO; /* Currently parsing a heredoc */ 587 EXTERN int no_clobber IZERO; /* no clobber enabled? 1=yes 2=notempty, 4=ask*/ 588 /* We received a window change event */ 589 EXTERN volatile sig_atomic_t windowchg IZERO; 590 #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) 591 EXTERN int dspmbyte_ls; 592 #endif 593 594 /* 595 * Global i/o info 596 */ 597 EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */ 598 EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */ 599 extern Char *ffile; /* Name of shell file for $0 */ 600 extern int dolzero; /* if $?0 should return true... */ 601 602 extern char *seterr; /* Error message from scanner/parser */ 603 #ifndef errno 604 extern int errno; /* Error from C library routines */ 605 #endif 606 extern int exitset; 607 /* Temp name for << shell files in /tmp, for xfree() */ 608 EXTERN Char *shtemp IZERO; 609 610 #ifdef BSDTIMES 611 EXTERN struct timeval time0; /* Time at which the shell started */ 612 EXTERN struct sysrusage ru0; 613 #else 614 # ifdef _SEQUENT_ 615 EXTERN timeval_t time0; /* time at which shell started */ 616 EXTERN struct process_stats ru0; 617 # else /* _SEQUENT_ */ 618 # ifndef POSIX 619 EXTERN time_t time0; /* time at which shell started */ 620 # else /* POSIX */ 621 EXTERN clock_t time0; /* time at which shell started */ 622 EXTERN clock_t clk_tck; 623 # endif /* POSIX */ 624 EXTERN struct tms shtimes; /* shell and child times for process timing */ 625 # endif /* _SEQUENT_ */ 626 EXTERN time_t seconds0; 627 #endif /* BSDTIMES */ 628 629 #ifndef HZ 630 # define HZ 100 /* for division into seconds */ 631 #endif 632 633 /* 634 * Miscellany 635 */ 636 EXTERN pid_t mainpid; /* pid of the main shell ($$) */ 637 EXTERN Char *doldol; /* Character pid for $$ */ 638 EXTERN pid_t backpid; /* pid of the last background job */ 639 640 641 /* 642 * Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now 643 * cause pid's could be unsigned and that would break our -1 flag, and 644 * uid_t and gid_t are not defined in all the systems so I would have to 645 * make special cases for them. In the future... 646 */ 647 EXTERN uid_t uid, euid; /* Invokers real and effective */ 648 EXTERN gid_t gid, egid; /* User and group ids */ 649 EXTERN pid_t opgrp, /* Initial pgrp and tty pgrp */ 650 shpgrp, /* Pgrp of shell */ 651 tpgrp; /* Terminal process group */ 652 /* If tpgrp is -1, leave tty alone! */ 653 654 EXTERN Char *Prompt; /* The actual printed prompt or NULL */ 655 EXTERN Char *RPrompt; /* Right-hand side prompt or NULL */ 656 657 /* 658 * To be able to redirect i/o for builtins easily, the shell moves the i/o 659 * descriptors it uses away from 0,1,2. 660 * Ideally these should be in units which are closed across exec's 661 * (this saves work) but for version 6, this is not usually possible. 662 * The desired initial values for these descriptors are defined in 663 * sh.local.h. 664 */ 665 EXTERN int SHIN IZERO; /* Current shell input (script) */ 666 EXTERN int SHOUT IZERO; /* Shell output */ 667 EXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */ 668 EXTERN int OLDSTD IZERO; /* Old standard input (def for cmds) */ 669 670 671 #if (SYSVREL == 4 && defined(_UTS)) || defined(__linux__) 672 /* 673 * From: fadden@uts.amdahl.com (Andy McFadden) 674 * we need sigsetjmp for UTS4, but not UTS2.1 675 */ 676 # define SIGSETJMP 677 #endif 678 679 /* 680 * Error control 681 * 682 * Errors in scanning and parsing set up an error message to be printed 683 * at the end and complete. Other errors always cause a reset. 684 * Because of source commands and .cshrc we need nested error catches. 685 */ 686 687 #ifdef SIGSETJMP 688 typedef struct { const char *f; size_t l; sigjmp_buf j; } jmp_buf_t; 689 # define tcsh_setjmp() sigsetjmp(reslab.j, 1) 690 # define tcsh_longjmp() siglongjmp(reslab.j, 1) 691 #else 692 typedef struct { const char *f; size_t l; jmp_buf j; } jmp_buf_t; 693 # define tcsh_setjmp() setjmp(reslab.j) 694 # define tcsh_longjmp() longjmp(reslab.j, 1) 695 #endif 696 697 #define setexit() (reslab.f = __func__, \ 698 reslab.l = __LINE__, \ 699 tcsh_setjmp()) 700 #ifdef SETJMP_DEBUG 701 # define _reset() xprintf("reset %s %zu\n", reslab.f, reslab.l), \ 702 flush(), tcsh_longjmp() 703 #else 704 # define _reset() tcsh_longjmp() 705 #endif 706 707 #define getexit(a) (void) ((a) = reslab) 708 #define resexit(a) (void) (reslab = (a)) 709 710 #define cpybin(a, b) (void) ((a) = (b)) 711 712 extern jmp_buf_t reslab; 713 714 EXTERN Char *gointr; /* Label for an onintr transfer */ 715 716 extern struct sigaction parintr; /* Parents interrupt catch */ 717 extern struct sigaction parterm; /* Parents terminate catch */ 718 719 /* 720 * Lexical definitions. 721 * 722 * All lexical space is allocated dynamically. 723 * The eighth/sixteenth bit of characters is used to prevent recognition, 724 * and eventually stripped. 725 */ 726 #define META 0200 727 #define ASCII 0177 728 #ifdef WIDE_STRINGS /* Implies SHORT_STRINGS */ 729 /* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */ 730 /* 731 * Notice 732 * 733 * By fix for handling unicode name file, 32nd bit is used. 734 * We need use '&' instead of '> or <' when comparing with INVALID_BYTE etc.. 735 * Cast to uChar is not recommended, 736 * becase Char is 4bytes but uChar is 8bytes on I32LP64. */ 737 # define QUOTE 0x80000000 738 # define TRIM 0x7FFFFFFF /* Mask to strip quote bit */ 739 # define UNDER 0x08000000 /* Underline flag */ 740 # define BOLD 0x04000000 /* Bold flag */ 741 # define STANDOUT 0x02000000 /* Standout flag */ 742 # define LITERAL 0x01000000 /* Literal character flag */ 743 # define ATTRIBUTES 0x0F000000 /* The bits used for attributes */ 744 # define INVALID_BYTE 0xF0000000 /* Invalid character on input */ 745 # ifdef SOLARIS2 746 # define CHAR 0x30FFFFFF /* Mask to mask out the character */ 747 # else 748 # define CHAR 0x00FFFFFF /* Mask to mask out the character */ 749 # endif 750 #elif defined (SHORT_STRINGS) 751 # define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */ 752 # define TRIM 0073777 /* Mask to strip quote/lit bit */ 753 # define UNDER 0040000 /* Underline flag */ 754 # define BOLD 0020000 /* Bold flag */ 755 # define STANDOUT 0010000 /* Standout flag */ 756 # define LITERAL 0004000 /* Literal character flag */ 757 # define ATTRIBUTES 0074000 /* The bits used for attributes */ 758 # define INVALID_BYTE 0 759 # define CHAR 0000377 /* Mask to mask out the character */ 760 #else 761 # define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */ 762 # define TRIM 0177 /* Mask to strip quote bit */ 763 # define UNDER 0000000 /* No extra bits to do both */ 764 # define BOLD 0000000 /* Bold flag */ 765 # define STANDOUT META /* Standout flag */ 766 # define LITERAL 0000000 /* Literal character flag */ 767 # define ATTRIBUTES 0200 /* The bits used for attributes */ 768 # define INVALID_BYTE 0 769 # define CHAR 0000177 /* Mask to mask out the character */ 770 #endif 771 #define CHAR_DBWIDTH (LITERAL|(LITERAL-1)) 772 773 # define MAX_UTF32 0x7FFFFFFF /* max UTF32 is U+7FFFFFFF */ 774 775 EXTERN int AsciiOnly; /* If set only 7 bits expected in characters */ 776 777 /* 778 * Each level of input has a buffered input structure. 779 * There are one or more blocks of buffered input for each level, 780 * exactly one if the input is seekable and tell is available. 781 * In other cases, the shell buffers enough blocks to keep all loops 782 * in the buffer. 783 * 784 * If (WIDE_STRINGS && cantell), fbobp is always a byte offset, but 785 * (fseekp - fbobp) and (feobp - fbobp) are character offsets (usable for 786 * fbuf indexing). 787 * 788 * If (!cantell), all offsets are character offsets; if (!WIDE_STRINGS), there 789 * is no difference between byte and character offsets. 790 */ 791 EXTERN struct Bin { 792 off_t Bfseekp; /* Seek pointer, generally != lseek() value */ 793 off_t Bfbobp; /* Seekp of beginning of buffers */ 794 off_t Bfeobp; /* Seekp of end of buffers */ 795 int Bfblocks; /* Number of buffer blocks */ 796 Char **Bfbuf; /* The array of buffer blocks */ 797 #ifdef WIDE_STRINGS 798 /* Number of bytes in each character if (cantell) */ 799 unsigned char Bfclens[BUFSIZE + 1]; 800 #endif 801 } B; 802 803 /* 804 * This structure allows us to seek inside aliases 805 */ 806 struct Ain { 807 int type; 808 #define TCSH_I_SEEK 0 /* Invalid seek */ 809 #define TCSH_A_SEEK 1 /* Alias seek */ 810 #define TCSH_F_SEEK 2 /* File seek */ 811 #define TCSH_E_SEEK 3 /* Eval seek */ 812 union { 813 off_t _f_seek; /* A byte offset if (cantell) */ 814 Char* _c_seek; 815 } fc; 816 #define f_seek fc._f_seek 817 #define c_seek fc._c_seek 818 Char **a_seek; 819 } ; 820 821 extern int aret; /* Type of last char returned */ 822 #define SEEKEQ(a, b) ((a)->type == (b)->type && \ 823 (a)->f_seek == (b)->f_seek && \ 824 (a)->a_seek == (b)->a_seek) 825 826 #define fseekp B.Bfseekp 827 #define fbobp B.Bfbobp 828 #define feobp B.Bfeobp 829 #define fblocks B.Bfblocks 830 #define fbuf B.Bfbuf 831 #define fclens B.Bfclens 832 833 /* 834 * The shell finds commands in loops by reseeking the input 835 * For whiles, in particular, it reseeks to the beginning of the 836 * line the while was on; hence the while placement restrictions. 837 */ 838 EXTERN struct Ain lineloc; 839 840 EXTERN int cantell; /* Is current source tellable ? */ 841 842 /* 843 * Input lines are parsed into doubly linked circular 844 * lists of words of the following form. 845 */ 846 struct wordent { 847 Char *word; 848 struct wordent *prev; 849 struct wordent *next; 850 }; 851 852 /* 853 * During word building, both in the initial lexical phase and 854 * when expanding $ variable substitutions, expansion by `!' and `$' 855 * must be inhibited when reading ahead in routines which are themselves 856 * processing `!' and `$' expansion or after characters such as `\' or in 857 * quotations. The following flags are passed to the getC routines 858 * telling them which of these substitutions are appropriate for the 859 * next character to be returned. 860 */ 861 #define DODOL 1 862 #define DOEXCL 2 863 #define DOALL DODOL|DOEXCL 864 865 /* 866 * Labuf implements a general buffer for lookahead during lexical operations. 867 * Text which is to be placed in the input stream can be stuck here. 868 * We stick parsed ahead $ constructs during initial input, 869 * process id's from `$$', and modified variable values (from qualifiers 870 * during expansion in sh.dol.c) here. 871 */ 872 extern struct Strbuf labuf; 873 EXTERN size_t lap; /* N/A if == labuf.len, index into labuf.s otherwise */ 874 875 /* 876 * Parser structure 877 * 878 * Each command is parsed to a tree of command structures and 879 * flags are set bottom up during this process, to be propagated down 880 * as needed during the semantics/exeuction pass (sh.sem.c). 881 */ 882 struct command { 883 unsigned char t_dtyp; /* Type of node */ 884 #define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */ 885 #define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */ 886 #define NODE_PIPE 3 /* t_dlef | t_drit */ 887 #define NODE_LIST 4 /* t_dlef ; t_drit */ 888 #define NODE_OR 5 /* t_dlef || t_drit */ 889 #define NODE_AND 6 /* t_dlef && t_drit */ 890 unsigned char t_nice; /* Nice value */ 891 #ifdef apollo 892 unsigned char t_systype; /* System environment */ 893 #endif 894 unsigned long t_dflg; /* Flags, e.g. F_AMPERSAND|... */ 895 /* save these when re-doing */ 896 #ifndef apollo 897 #define F_SAVE (F_NICE|F_TIME|F_NOHUP|F_HUP) 898 #else 899 #define F_SAVE (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER) 900 #endif 901 #define F_AMPERSAND (1<<0) /* executes in background */ 902 #define F_APPEND (1<<1) /* output is redirected >> */ 903 #define F_PIPEIN (1<<2) /* input is a pipe */ 904 #define F_PIPEOUT (1<<3) /* output is a pipe */ 905 #define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */ 906 #define F_NOINTERRUPT (1<<5) /* should be immune from intr's */ 907 /* spare */ 908 #define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */ 909 #define F_OVERWRITE (1<<8) /* output was ! */ 910 #define F_READ (1<<9) /* input redirection is << */ 911 #define F_REPEAT (1<<10) /* reexec aft if, repeat,... */ 912 #define F_NICE (1<<11) /* t_nice is meaningful */ 913 #define F_NOHUP (1<<12) /* nohup this command */ 914 #define F_TIME (1<<13) /* time this command */ 915 #define F_BACKQ (1<<14) /* command is in `` */ 916 #define F_HUP (1<<15) /* hup this command */ 917 #ifdef apollo 918 #define F_VER (1<<16) /* execute command under SYSTYPE */ 919 #endif 920 union { 921 Char *T_dlef; /* Input redirect word */ 922 struct command *T_dcar; /* Left part of list/pipe */ 923 } L; 924 union { 925 Char *T_drit; /* Output redirect word */ 926 struct command *T_dcdr; /* Right part of list/pipe */ 927 } R; 928 #define t_dlef L.T_dlef 929 #define t_dcar L.T_dcar 930 #define t_drit R.T_drit 931 #define t_dcdr R.T_dcdr 932 Char **t_dcom; /* Command/argument vector */ 933 struct command *t_dspr; /* Pointer to ()'d subtree */ 934 }; 935 936 937 /* 938 * The keywords for the parser 939 */ 940 #define TC_BREAK 0 941 #define TC_BRKSW 1 942 #define TC_CASE 2 943 #define TC_DEFAULT 3 944 #define TC_ELSE 4 945 #define TC_END 5 946 #define TC_ENDIF 6 947 #define TC_ENDSW 7 948 #define TC_EXIT 8 949 #define TC_FOREACH 9 950 #define TC_GOTO 10 951 #define TC_IF 11 952 #define TC_LABEL 12 953 #define TC_LET 13 954 #define TC_SET 14 955 #define TC_SWITCH 15 956 #define TC_TEST 16 957 #define TC_THEN 17 958 #define TC_WHILE 18 959 960 /* 961 * These are declared here because they want to be 962 * initialized in sh.init.c (to allow them to be made readonly) 963 */ 964 965 #if defined(hpux) && defined(__STDC__) && !defined(__GNUC__) 966 /* Avoid hpux ansi mode spurious warnings */ 967 typedef void (*bfunc_t) (); 968 #else 969 typedef void (*bfunc_t) (Char **, struct command *); 970 #endif /* hpux && __STDC__ && !__GNUC__ */ 971 972 extern const struct biltins { 973 const char *bname; 974 bfunc_t bfunct; 975 int minargs, maxargs; 976 } bfunc[]; 977 extern int nbfunc; 978 #ifdef WINNT_NATIVE 979 extern struct biltins nt_bfunc[]; 980 extern int nt_nbfunc; 981 #endif /* WINNT_NATIVE*/ 982 extern int bequiet; 983 984 extern struct srch { 985 const char *s_name; 986 int s_value; 987 } srchn[]; 988 extern int nsrchn; 989 990 /* 991 * Structure defining the existing while/foreach loops at this 992 * source level. Loops are implemented by seeking back in the 993 * input. For foreach (fe), the word list is attached here. 994 */ 995 EXTERN struct whyle { 996 struct Ain w_start; /* Point to restart loop */ 997 struct Ain w_end; /* End of loop (0 if unknown) */ 998 Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */ 999 Char *w_fename; /* Name for fe */ 1000 struct whyle *w_next; /* Next (more outer) loop */ 1001 } *whyles; 1002 1003 /* 1004 * Variable structure 1005 * 1006 * Aliases and variables are stored in AVL balanced binary trees. 1007 */ 1008 EXTERN struct varent { 1009 Char **vec; /* Array of words which is the value */ 1010 Char *v_name; /* Name of variable/alias */ 1011 int v_flags; /* Flags */ 1012 #define VAR_ALL -1 1013 #define VAR_READONLY 1 1014 #define VAR_READWRITE 2 1015 #define VAR_NOGLOB 4 1016 #define VAR_NOERROR 8 1017 #define VAR_FIRST 32 1018 #define VAR_LAST 64 1019 struct varent *v_link[3]; /* The links, see below */ 1020 int v_bal; /* Balance factor */ 1021 } shvhed IZERO_STRUCT, aliases IZERO_STRUCT; 1022 1023 #define v_left v_link[0] 1024 #define v_right v_link[1] 1025 #define v_parent v_link[2] 1026 1027 #define adrof(v) adrof1(v, &shvhed) 1028 #define varval(v) value1(v, &shvhed) 1029 1030 /* 1031 * The following are for interfacing redo substitution in 1032 * aliases to the lexical routines. 1033 */ 1034 #define HIST_PURGE -500000 1035 EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */ 1036 EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */ 1037 EXTERN Char **alvec IZERO_STRUCT, 1038 *alvecp IZERO_STRUCT;/* The (remnants of) alias vector */ 1039 1040 /* 1041 * Filename/command name expansion variables 1042 */ 1043 1044 #ifndef MAXPATHLEN 1045 # ifdef PATH_MAX 1046 # define MAXPATHLEN PATH_MAX 1047 # else 1048 # define MAXPATHLEN 2048 1049 # endif 1050 #endif /* MAXPATHLEN */ 1051 1052 #ifndef HAVENOLIMIT 1053 /* 1054 * resource limits 1055 */ 1056 extern struct limits { 1057 int limconst; 1058 const char *limname; 1059 int limdiv; 1060 const char *limscale; 1061 } limits[]; 1062 #endif /* !HAVENOLIMIT */ 1063 1064 /* 1065 * History list 1066 * 1067 * Each history list entry contains an embedded wordlist 1068 * from the scanner, a number for the event, and a reference count 1069 * to aid in discarding old entries. 1070 * 1071 * Essentially "invisible" entries are put on the history list 1072 * when history substitution includes modifiers, and thrown away 1073 * at the next discarding since their event numbers are very negative. 1074 */ 1075 EXTERN struct Hist { 1076 struct wordent Hlex; 1077 int Hnum; /* eventno when inserted into history list */ 1078 int Href; 1079 time_t Htime; 1080 Char *histline; 1081 struct Hist *Hnext, *Hprev; /* doubly linked list */ 1082 unsigned Hhash; /* hash value of command line */ 1083 } Histlist IZERO_STRUCT; 1084 1085 extern struct wordent paraml; /* Current lexical word list */ 1086 EXTERN int eventno; /* Next events number */ 1087 EXTERN int lastev; /* Last event reference (default) */ 1088 1089 EXTERN Char HIST; /* history invocation character */ 1090 EXTERN Char HISTSUB; /* auto-substitute character */ 1091 EXTERN Char PRCH; /* Prompt symbol for regular users */ 1092 EXTERN Char PRCHROOT; /* Prompt symbol for root */ 1093 1094 /* 1095 * For operating systems with single case filenames (OS/2) 1096 */ 1097 #ifdef CASE_INSENSITIVE 1098 # ifdef WIDE_STRINGS 1099 # define samecase(x) (towlower(x)) 1100 # else 1101 # define samecase(x) (isupper((unsigned char)(x)) ? \ 1102 tolower((unsigned char)(x)) : (x)) 1103 # endif 1104 #else 1105 # define samecase(x) (x) 1106 #endif /* CASE_INSENSITIVE */ 1107 1108 /* 1109 * strings.h: 1110 */ 1111 #ifndef SHORT_STRINGS 1112 #define Strchr(a, b) strchr(a, b) 1113 #define Strrchr(a, b) strrchr(a, b) 1114 #define Strcat(a, b) strcat(a, b) 1115 #define Strncat(a, b, c) strncat(a, b, c) 1116 #define Strcpy(a, b) strcpy(a, b) 1117 #define Strncpy(a, b, c) strncpy(a, b, c) 1118 #define Strlen(a) strlen(a) 1119 #define Strcmp(a, b) strcmp(a, b) 1120 #define Strncmp(a, b, c) strncmp(a, b, c) 1121 #define Strcasecmp(a, b) strcasecmp(a, b) 1122 1123 #define Strspl(a, b) strspl(a, b) 1124 #define Strnsave(a, b) strnsave(a, b) 1125 #define Strsave(a) strsave(a) 1126 #define Strend(a) strend(a) 1127 #define Strstr(a, b) strstr(a, b) 1128 1129 #define str2short(a) ((void *)(intptr_t)(a)) 1130 #define blk2short(a) saveblk(a) 1131 #define short2blk(a) saveblk(a) 1132 #define short2str(a) caching_strip(a) 1133 #else 1134 #if defined(WIDE_STRINGS) && !defined(UTF16_STRINGS) 1135 #define Strchr(a, b) wcschr(a, b) 1136 #define Strrchr(a, b) wcsrchr(a, b) 1137 #define Strcat(a, b) wcscat(a, b) 1138 #define Strncat(a, b, c) wcsncat(a, b, c) 1139 #define Strcpy(a, b) wcscpy(a, b) 1140 #define Strncpy(a, b, c) wcsncpy(a, b, c) 1141 #define Strlen(a) wcslen(a) 1142 #define Strcmp(a, b) wcscmp(a, b) 1143 #define Strncmp(a, b, c) wcsncmp(a, b, c) 1144 #else 1145 #define Strchr(a, b) s_strchr(a, b) 1146 #define Strrchr(a, b) s_strrchr(a, b) 1147 #define Strcat(a, b) s_strcat(a, b) 1148 #define Strncat(a, b, c) s_strncat(a, b, c) 1149 #define Strcpy(a, b) s_strcpy(a, b) 1150 #define Strncpy(a, b, c) s_strncpy(a, b, c) 1151 #define Strlen(a) s_strlen(a) 1152 #define Strcmp(a, b) s_strcmp(a, b) 1153 #define Strncmp(a, b, c) s_strncmp(a, b, c) 1154 #endif 1155 #define Strcasecmp(a, b) s_strcasecmp(a, b) 1156 1157 #define Strspl(a, b) s_strspl(a, b) 1158 #define Strnsave(a, b) s_strnsave(a, b) 1159 #define Strsave(a) s_strsave(a) 1160 #define Strend(a) s_strend(a) 1161 #define Strstr(a, b) s_strstr(a, b) 1162 #endif 1163 1164 #define TCSH_MODIFIERS "ehlqrstuxQ" 1165 1166 /* 1167 * setname is a macro to save space (see sh.err.c) 1168 */ 1169 EXTERN const char *bname; 1170 1171 #define setname(a) (bname = (a)) 1172 1173 #ifdef VFORK 1174 EXTERN Char *Vsav; 1175 EXTERN Char *Vdp; 1176 EXTERN Char *Vexpath; 1177 EXTERN char **Vt; 1178 #endif /* VFORK */ 1179 1180 EXTERN Char **evalvec; 1181 EXTERN Char *evalp; 1182 1183 extern struct mesg { 1184 const char *iname; /* name from /usr/include */ 1185 const char *pname; /* print name */ 1186 } mesg[]; 1187 1188 /* word_chars is set by default to WORD_CHARS (or WORD_CHARS_VI) but can 1189 be overridden by the wordchars variable--if unset, reverts to 1190 WORD_CHARS (or WORD_CHARS_VI) */ 1191 1192 EXTERN Char *word_chars; 1193 1194 #define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ 1195 #define WORD_CHARS_VI "_" /* default chars besides alnums in words */ 1196 1197 EXTERN Char *STR_SHELLPATH; 1198 1199 #ifdef _PATH_BSHELL 1200 EXTERN Char *STR_BSHELL; 1201 #endif 1202 EXTERN Char *STR_WORD_CHARS; 1203 EXTERN Char *STR_WORD_CHARS_VI; 1204 EXTERN Char **STR_environ IZERO; 1205 1206 extern int dont_free; /* Tell free that we are in danger if we free */ 1207 1208 extern Char *INVPTR; 1209 extern Char **INVPPTR; 1210 1211 extern char *progname; 1212 extern int tcsh; 1213 extern int xlate_cr; 1214 extern int output_raw; 1215 extern int lbuffed; 1216 extern time_t Htime; 1217 extern int numeof; 1218 extern int insource; 1219 extern char linbuf[]; 1220 extern char *linp; 1221 extern int nsig; 1222 #ifdef VFORK 1223 extern int use_fork; 1224 #endif 1225 extern int tellwhat; 1226 extern int NoNLSRebind; 1227 #if !HAVE_DECL_ENVIRON 1228 extern char **environ; 1229 #endif 1230 1231 #include "tc.h" 1232 1233 #ifndef WINNT_NATIVE 1234 # ifdef NLS_CATALOGS 1235 # ifdef HAVE_FEATURES_H 1236 # include <features.h> 1237 # endif 1238 # ifdef HAVE_NL_LANGINFO 1239 # include <langinfo.h> 1240 # endif 1241 # ifdef __uxps__ 1242 # define gettxt gettxt_ds 1243 # endif 1244 # include <nl_types.h> 1245 # ifdef __uxps__ 1246 # undef gettxt 1247 # endif 1248 EXTERN nl_catd catd; 1249 # if defined(HAVE_ICONV) && defined(HAVE_NL_LANGINFO) 1250 # define CGETS(b, c, d) iconv_catgets(catd, b, c, d) 1251 # else 1252 # define CGETS(b, c, d) xcatgets(catd, b, c, d) 1253 # endif 1254 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1255 # else 1256 # define CGETS(b, c, d) d 1257 # define CSAVS(b, c, d) d 1258 # endif 1259 #else /* WINNT_NATIVE */ 1260 # define CGETS(b, c, d) nt_cgets( b, c, d) 1261 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1262 #endif /* WINNT_NATIVE */ 1263 1264 #if defined(FILEC) 1265 extern int filec; 1266 #endif /* FILEC */ 1267 1268 #include "sh.decls.h" 1269 /* 1270 * Since on some machines characters are unsigned, and the signed 1271 * keyword is not universally implemented, we treat all characters 1272 * as unsigned and sign extend them where we need. 1273 */ 1274 #define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a)) 1275 1276 /* 1277 * explanation for use by the "--help" option 1278 */ 1279 #define HELP_STRING "\ 1280 -b file batch mode, read and execute commands from `file' \n\ 1281 -c command run `command' from next argument \n\ 1282 -d load directory stack from `~/.cshdirs' \n\ 1283 -Dname[=value] define environment variable `name' to `value' (DomainOS only) \n\ 1284 -e exit on any error \n\ 1285 -f start faster by ignoring the start-up file \n\ 1286 -F use fork() instead of vfork() when spawning (ConvexOS only) \n\ 1287 -i interactive, even when input is not from a terminal \n\ 1288 -l act as a login shell, must be the only option specified \n\ 1289 -m load the start-up file, whether or not owned by effective user \n\ 1290 -n file no execute mode, just check syntax of the following `file' \n\ 1291 -q accept SIGQUIT for running under a debugger \n\ 1292 -s read commands from standard input \n\ 1293 -t read one line from standard input \n\ 1294 -v echo commands after history substitution \n\ 1295 -V like -v but including commands read from the start-up file \n\ 1296 -x echo commands immediately before execution \n\ 1297 -X like -x but including commands read from the start-up file \n\ 1298 --help print this message and exit \n\ 1299 --version print the version shell variable and exit \n\ 1300 \nSee the tcsh(1) manual page for detailed information.\n" 1301 1302 #include "tc.nls.h" 1303 1304 #define TEXP_IGNORE 1 /* in ignore, it means to ignore value, just parse */ 1305 #define TEXP_NOGLOB 2 /* in ignore, it means not to globone */ 1306 1307 1308 #endif /* _h_sh */ 1309