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 * Sanity 83 */ 84 #if defined(_POSIX_SOURCE) && !defined(POSIX) 85 # define POSIX 86 #endif 87 88 #if defined(POSIXJOBS) && !defined(BSDJOBS) 89 # define BSDJOBS 90 #endif 91 92 #define TMP_TEMPLATE ".XXXXXX" 93 94 #ifdef SHORT_STRINGS 95 # ifdef WIDE_STRINGS 96 #include <wchar.h> 97 # ifdef UTF16_STRINGS 98 typedef wint_t Char; 99 # else 100 typedef wchar_t Char; 101 #endif 102 typedef unsigned long uChar; 103 typedef wint_t eChar; /* Can contain any Char value or CHAR_ERR */ 104 #define CHAR_ERR WEOF /* Pretty please, use bit 31... */ 105 #define normal_mbtowc(PWC, S, N) rt_mbtowc(PWC, S, N) 106 #define reset_mbtowc() TCSH_IGNORE(mbtowc(NULL, NULL, 0)) 107 # else 108 typedef short Char; 109 typedef unsigned short uChar; 110 typedef int eChar; 111 #define CHAR_ERR (-1) 112 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 113 #define reset_mbtowc() ((void)0) 114 # endif 115 # define SAVE(a) (Strsave(str2short(a))) 116 #else 117 typedef char Char; 118 typedef unsigned char uChar; 119 typedef int eChar; 120 #define CHAR_ERR (-1) 121 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 122 #define reset_mbtowc() ((void)0) 123 # define SAVE(a) (strsave(a)) 124 #endif 125 126 #if !defined(__inline) && !defined(__GNUC__) && !defined(_MSC_VER) 127 #define __inline 128 #endif 129 #ifdef _MSC_VER 130 #define TCSH_PTRDIFF_T_FMT "I" 131 #else 132 #define TCSH_PTRDIFF_T_FMT "t" 133 #endif 134 /* Elide unused argument warnings */ 135 #define USE(a) (void) (a) 136 #define TCSH_IGNORE(a) tcsh_ignore((intptr_t)a) 137 static __inline void tcsh_ignore(intptr_t a) 138 { 139 USE(a); 140 } 141 142 /* 143 * Return true if the path is absolute 144 */ 145 #if defined(WINNT_NATIVE) 146 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 147 (Isalpha((p)[0]) && (p)[1] == ':')) 148 #elif defined(__CYGWIN__) 149 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 150 (Isalpha((p)[0]) && (p)[1] == ':' && \ 151 ((p)[2] == '\0' || (p)[2] == '/'))) 152 #else /* !WINNT_NATIVE && !__CYGWIN__ */ 153 # define ABSOLUTEP(p) (*(p) == '/') 154 #endif /* WINNT_NATIVE || __CYGWIN__ */ 155 156 /* 157 * Fundamental definitions which may vary from system to system. 158 * 159 * BUFSIZE The i/o buffering size; also limits word size 160 * MAILINTVL How often to mailcheck; more often is more expensive 161 */ 162 #ifdef BUFSIZE 163 # if BUFSIZE < 4096 164 # undef BUFSIZE 165 # define BUFSIZE 4096 /* buffer size should be no less than this */ 166 # endif 167 #else 168 # define BUFSIZE 4096 169 #endif /* BUFSIZE */ 170 171 #define FORKSLEEP 10 /* delay loop on non-interactive fork failure */ 172 #define MAILINTVL 600 /* 10 minutes */ 173 174 #ifndef INBUFSIZE 175 # define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */ 176 #endif /* INBUFSIZE */ 177 178 179 /* 180 * What our builtin echo looks like 181 */ 182 #define NONE_ECHO 0 183 #define BSD_ECHO 1 184 #define SYSV_ECHO 2 185 #define BOTH_ECHO (BSD_ECHO|SYSV_ECHO) 186 187 #ifndef ECHO_STYLE 188 # if SYSVREL > 0 189 # define ECHO_STYLE SYSV_ECHO 190 # else /* SYSVREL == 0 */ 191 # define ECHO_STYLE BSD_ECHO 192 # endif /* SYSVREL */ 193 #endif /* ECHO_STYLE */ 194 195 /* values for noclobber */ 196 #define NOCLOBBER_DEFAULT 1 197 #define NOCLOBBER_NOTEMPTY 2 198 #define NOCLOBBER_ASK 4 199 200 /* 201 * The shell moves std in/out/diag and the old std input away from units 202 * 0, 1, and 2 so that it is easy to set up these standards for invoked 203 * commands. 204 */ 205 #define FSAFE 5 /* We keep the first 5 descriptors untouched */ 206 #define FSHTTY 15 /* /dev/tty when manip pgrps */ 207 #define FSHIN 16 /* Preferred desc for shell input */ 208 #define FSHOUT 17 /* ... shell output */ 209 #define FSHDIAG 18 /* ... shell diagnostics */ 210 #define FOLDSTD 19 /* ... old std input */ 211 212 #ifdef PROF 213 #define xexit(n) done(n) 214 #endif 215 216 #ifdef cray 217 # define word word_t /* sys/types.h defines word.. bad move! */ 218 #endif 219 220 #include <sys/types.h> 221 222 #ifdef cray 223 # undef word 224 #endif 225 226 /* 227 * Path separator in environment variables 228 */ 229 #ifndef PATHSEP 230 # if defined(__EMX__) || defined(WINNT_NATIVE) 231 # define PATHSEP ';' 232 # else /* unix */ 233 # define PATHSEP ':' 234 # endif /* __EMX__ || WINNT_NATIVE */ 235 #endif /* !PATHSEP */ 236 237 #if defined(__HP_CXD_SPP) && !defined(__hpux) 238 # include <sys/cnx_stat.h> 239 # define stat stat64 240 # define fstat fstat64 241 # define lstat lstat64 242 #endif /* __HP_CXD_SPP && !__hpux */ 243 244 #ifdef HAVE_LONG_LONG 245 typedef long long tcsh_number_t; 246 #else 247 typedef long tcsh_number_t; 248 #endif 249 /* 250 * This macro compares the st_dev field of struct stat. On aix on ibmESA 251 * st_dev is a structure, so comparison does not work. 252 */ 253 #ifndef DEV_DEV_COMPARE 254 # define DEV_DEV_COMPARE(x,y) ((x) == (y)) 255 #endif /* DEV_DEV_COMPARE */ 256 257 #ifdef _SEQUENT_ 258 # include <sys/procstats.h> 259 #endif /* _SEQUENT_ */ 260 #if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE) 261 # include <sys/times.h> 262 #endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */ 263 264 #ifdef NLS 265 # include <locale.h> 266 #endif /* NLS */ 267 268 #if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__) 269 # include <sys/param.h> 270 #endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */ 271 #include <sys/stat.h> 272 273 #if defined(BSDTIMES) || defined(BSDLIMIT) 274 # include <sys/time.h> 275 # if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__) 276 # include "/usr/ucbinclude/sys/resource.h" 277 # else 278 # ifdef convex 279 # define sysrusage cvxrusage 280 # include <sys/sysinfo.h> 281 # else 282 # define sysrusage rusage 283 # include <sys/resource.h> 284 # endif /* convex */ 285 # endif /* SYSVREL>3 */ 286 #endif /* BSDTIMES */ 287 288 #ifndef WINNT_NATIVE 289 # ifndef POSIX 290 # ifdef TERMIO 291 # include <termio.h> 292 # else /* SGTTY */ 293 # include <sgtty.h> 294 # endif /* TERMIO */ 295 # else /* POSIX */ 296 # ifndef _UWIN 297 # include <termios.h> 298 # else 299 # include <termio.h> 300 # endif /* _UWIN */ 301 # if SYSVREL > 3 || defined(__linux__) 302 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 303 # undef TIOCSLTC 304 # undef CSWTCH 305 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 306 # endif /* SYSVREL > 3 */ 307 # endif /* POSIX */ 308 #endif /* WINNT_NATIVE */ 309 310 #ifdef sonyrisc 311 # include <sys/ttold.h> 312 #endif /* sonyrisc */ 313 314 #if defined(POSIX) && !defined(WINNT_NATIVE) 315 # include <unistd.h> 316 317 /* 318 * the gcc+protoize version of <stdlib.h> 319 * redefines malloc(), so we define the following 320 * to avoid it. 321 */ 322 # if defined(SYSMALLOC) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX) 323 # define NO_FIX_MALLOC 324 # include <stdlib.h> 325 # else /* glibc */ 326 # define _GNU_STDLIB_H 327 # define malloc __malloc 328 # define free __free 329 # define calloc __calloc 330 # define realloc __realloc 331 # include <stdlib.h> 332 # undef malloc 333 # undef free 334 # undef calloc 335 # undef realloc 336 # endif /* glibc || sgi */ 337 #endif /* POSIX && !WINNT_NATIVE */ 338 #include <limits.h> 339 340 #if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) 341 # if !defined(pyr) && !defined(stellar) 342 # include <time.h> 343 # ifdef _MINIX 344 # define HZ CLOCKS_PER_SEC 345 # endif /* _MINIX */ 346 # endif /* !pyr && !stellar */ 347 #endif /* SYSVREL > 0 || _IBMR2 */ 348 349 /* In the following ifdef the DECOSF1 has been commented so that later 350 * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions... 351 */ 352 #if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO)) 353 # if !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) 354 # include <sys/ioctl.h> 355 # if SYSVREL > 3 || defined(__linux__) 356 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 357 # undef TIOCSLTC 358 # undef CSWTCH 359 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 360 # endif /* SYSVREL > 3 */ 361 # endif 362 #endif 363 364 #if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX) 365 #undef CSWTCH 366 #define CSWTCH _POSIX_VDISABLE 367 #endif 368 369 #if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__) 370 # include <sys/filio.h> 371 #endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */ 372 373 #if !defined(_MINIX) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D) 374 # include <sys/file.h> 375 #endif /* !_MINIX && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */ 376 377 #if !defined(O_RDONLY) || !defined(O_NDELAY) 378 # include <fcntl.h> 379 #endif 380 381 #include <errno.h> 382 383 #include <setjmp.h> 384 385 #include <stdarg.h> 386 387 #ifdef HAVE_DIRENT_H 388 # include <dirent.h> 389 #else 390 # ifdef HAVE_NDIR_H 391 # include <ndir.h> 392 # else 393 # include <sys/dir.h> 394 # endif 395 # define dirent direct 396 #endif /* HAVE_DIRENT_H */ 397 #ifndef HAVE_STRUCT_DIRENT_D_INO 398 # define d_ino d_fileno 399 #endif 400 #if defined(hpux) || defined(sgi) || defined(OREO) 401 # include <stdio.h> /* So the fgetpwent() prototypes work */ 402 #endif /* hpux || sgi || OREO */ 403 #ifndef WINNT_NATIVE 404 #include <pwd.h> 405 #include <grp.h> 406 #endif /* WINNT_NATIVE */ 407 #ifdef HAVE_SHADOW_H 408 # include <shadow.h> 409 #endif /* HAVE_SHADOW_H */ 410 #ifdef HAVE_AUTH_H 411 # include <auth.h> 412 #endif /* HAVE_AUTH_H */ 413 #if defined(BSD) && !defined(POSIX) 414 # include <strings.h> 415 # define strchr(a, b) index(a, b) 416 # define strrchr(a, b) rindex(a, b) 417 #else 418 # include <string.h> 419 #endif /* BSD */ 420 421 /* 422 * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not 423 * include it yet, so we include it here 424 */ 425 #if defined(sgi) && SYSVREL > 3 426 # include <sys/cdefs.h> 427 #endif /* sgi && SYSVREL > 3 */ 428 429 #ifdef REMOTEHOST 430 # ifdef ISC 431 # undef MAXHOSTNAMELEN /* Busted headers? */ 432 # endif 433 434 # include <netinet/in.h> 435 # include <arpa/inet.h> 436 # include <sys/socket.h> 437 # if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) 438 # if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */ 439 # if !defined(sgi) 440 # define INET6 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 #endif /* !PURIFY */ 451 452 /* 453 * ASCII vs. EBCDIC 454 */ 455 #if 'Z' - 'A' == 25 456 # ifndef IS_ASCII 457 # define IS_ASCII 458 # endif 459 #endif 460 461 #include "sh.types.h" 462 463 #if !HAVE_DECL_GETPGRP 464 # ifndef GETPGRP_VOID 465 extern pid_t getpgrp (int); 466 # else 467 extern pid_t getpgrp (void); 468 # endif 469 #endif 470 471 #ifndef lint 472 typedef ptr_t memalign_t; 473 #else 474 typedef union { 475 char am_char, *am_char_p; 476 short am_short, *am_short_p; 477 int am_int, *am_int_p; 478 long am_long, *am_long_p; 479 float am_float, *am_float_p; 480 double am_double, *am_double_p; 481 } *memalign_t; 482 483 # define malloc lint_malloc 484 # define free lint_free 485 # define realloc lint_realloc 486 # define calloc lint_calloc 487 #endif 488 489 #ifdef SYSMALLOC 490 # define xmalloc(i) smalloc(i) 491 # define xrealloc(p, i) srealloc(p, i) 492 # define xcalloc(n, s) scalloc(n, s) 493 # define xfree sfree 494 #else 495 # define xmalloc(i) malloc(i) 496 # define xrealloc(p, i) realloc(p, i) 497 # define xcalloc(n, s) calloc(n, s) 498 # define xfree free 499 #endif /* SYSMALLOC */ 500 #include "sh.char.h" 501 #include "sh.err.h" 502 #include "sh.dir.h" 503 #include "sh.proc.h" 504 505 #include "pathnames.h" 506 507 508 /* 509 * C shell 510 * 511 * Bill Joy, UC Berkeley 512 * October, 1978; May 1980 513 * 514 * Jim Kulp, IIASA, Laxenburg Austria 515 * April, 1980 516 */ 517 518 #ifdef HESIOD 519 # include <hesiod.h> 520 #endif /* HESIOD */ 521 522 #ifdef REMOTEHOST 523 # include <netdb.h> 524 #endif /* REMOTEHOST */ 525 526 #ifndef MAXHOSTNAMELEN 527 # ifdef HOST_NAME_MAX 528 # define MAXHOSTNAMELEN (HOST_NAME_MAX + 1) 529 # elif defined(SCO) && (SYSVREL > 3) 530 # include <sys/socket.h> 531 # else 532 # define MAXHOSTNAMELEN 256 533 # endif 534 #endif /* MAXHOSTNAMELEN */ 535 536 537 538 #define eq(a, b) (Strcmp(a, b) == 0) 539 540 /* globone() flags */ 541 #define G_ERROR 0 /* default action: error if multiple words */ 542 #define G_IGNORE 1 /* ignore the rest of the words */ 543 #define G_APPEND 2 /* make a sentence by cat'ing the words */ 544 545 /* 546 * Global flags 547 */ 548 EXTERN int chkstop IZERO; /* Warned of stopped jobs... allow exit */ 549 550 #if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD) 551 # define CLOSE_ON_EXEC 552 #else 553 EXTERN int didcch IZERO; /* Have closed unused fd's for child */ 554 #endif /* (FIOCLEX && FIONCLEX) || F_SETFD */ 555 556 EXTERN int didfds IZERO; /* Have setup i/o fd's for child */ 557 EXTERN int doneinp IZERO; /* EOF indicator after reset from readc */ 558 EXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */ 559 EXTERN int child IZERO; /* Child shell ... errors cause exit */ 560 EXTERN int haderr IZERO; /* Reset was because of an error */ 561 EXTERN int intty IZERO; /* Input is a tty */ 562 EXTERN int intact IZERO; /* We are interactive... therefore prompt */ 563 EXTERN int justpr IZERO; /* Just print because of :p hist mod */ 564 EXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */ 565 EXTERN int neednote IZERO; /* Need to pnotify() */ 566 EXTERN int noexec IZERO; /* Don't execute, just syntax check */ 567 EXTERN int pjobs IZERO; /* want to print jobs if interrupted */ 568 EXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */ 569 EXTERN int handle_interrupt IZERO;/* Are we currently handling an interrupt? */ 570 EXTERN int havhash IZERO; /* path hashing is available */ 571 EXTERN int editing IZERO; /* doing filename expansion and line editing */ 572 EXTERN int noediting IZERO; /* initial $term defaulted to noedit */ 573 EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */ 574 EXTERN int anyerror IZERO; /* propagate errors from pipelines/backq */ 575 EXTERN int compat_expr IZERO;/* csh-style expressions? */ 576 EXTERN int isoutatty IZERO; /* is SHOUT a tty */ 577 EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */ 578 EXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */ 579 EXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */ 580 EXTERN int arun IZERO; /* Currently running multi-line-aliases */ 581 EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */ 582 EXTERN int cdtohome IZERO; /* cd without args goes home */ 583 EXTERN int inheredoc IZERO; /* Currently parsing a heredoc */ 584 EXTERN int no_clobber IZERO; /* no clobber enabled? 1=yes 2=notempty, 4=ask*/ 585 /* We received a window change event */ 586 EXTERN volatile sig_atomic_t windowchg IZERO; 587 #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) 588 EXTERN int dspmbyte_ls; 589 #endif 590 591 /* 592 * Global i/o info 593 */ 594 EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */ 595 EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */ 596 extern Char *ffile; /* Name of shell file for $0 */ 597 extern int dolzero; /* if $?0 should return true... */ 598 599 extern char *seterr; /* Error message from scanner/parser */ 600 #ifndef errno 601 extern int errno; /* Error from C library routines */ 602 #endif 603 extern int exitset; 604 /* Temp name for << shell files in /tmp, for xfree() */ 605 EXTERN Char *shtemp IZERO; 606 607 #ifdef BSDTIMES 608 EXTERN struct timeval time0; /* Time at which the shell started */ 609 EXTERN struct sysrusage ru0; 610 #else 611 # ifdef _SEQUENT_ 612 EXTERN timeval_t time0; /* time at which shell started */ 613 EXTERN struct process_stats ru0; 614 # else /* _SEQUENT_ */ 615 # ifndef POSIX 616 EXTERN time_t time0; /* time at which shell started */ 617 # else /* POSIX */ 618 EXTERN clock_t time0; /* time at which shell started */ 619 EXTERN clock_t clk_tck; 620 # endif /* POSIX */ 621 EXTERN struct tms shtimes; /* shell and child times for process timing */ 622 # endif /* _SEQUENT_ */ 623 EXTERN time_t seconds0; 624 #endif /* BSDTIMES */ 625 626 #ifndef HZ 627 # define HZ 100 /* for division into seconds */ 628 #endif 629 630 /* 631 * Miscellany 632 */ 633 EXTERN pid_t mainpid; /* pid of the main shell ($$) */ 634 EXTERN Char *doldol; /* Character pid for $$ */ 635 EXTERN pid_t backpid; /* pid of the last background job */ 636 637 638 /* 639 * Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now 640 * cause pid's could be unsigned and that would break our -1 flag, and 641 * uid_t and gid_t are not defined in all the systems so I would have to 642 * make special cases for them. In the future... 643 */ 644 EXTERN uid_t uid, euid; /* Invokers real and effective */ 645 EXTERN gid_t gid, egid; /* User and group ids */ 646 EXTERN pid_t opgrp, /* Initial pgrp and tty pgrp */ 647 shpgrp, /* Pgrp of shell */ 648 tpgrp; /* Terminal process group */ 649 /* If tpgrp is -1, leave tty alone! */ 650 651 EXTERN Char *Prompt; /* The actual printed prompt or NULL */ 652 EXTERN Char *RPrompt; /* Right-hand side prompt or NULL */ 653 654 /* 655 * To be able to redirect i/o for builtins easily, the shell moves the i/o 656 * descriptors it uses away from 0,1,2. 657 * Ideally these should be in units which are closed across exec's 658 * (this saves work) but for version 6, this is not usually possible. 659 * The desired initial values for these descriptors are defined in 660 * sh.local.h. 661 */ 662 EXTERN int SHIN IZERO; /* Current shell input (script) */ 663 EXTERN int SHOUT IZERO; /* Shell output */ 664 EXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */ 665 EXTERN int OLDSTD IZERO; /* Old standard input (def for cmds) */ 666 667 668 #if (SYSVREL == 4 && defined(_UTS)) || defined(__linux__) 669 /* 670 * From: fadden@uts.amdahl.com (Andy McFadden) 671 * we need sigsetjmp for UTS4, but not UTS2.1 672 */ 673 # define SIGSETJMP 674 #endif 675 676 /* 677 * Error control 678 * 679 * Errors in scanning and parsing set up an error message to be printed 680 * at the end and complete. Other errors always cause a reset. 681 * Because of source commands and .cshrc we need nested error catches. 682 */ 683 684 #ifdef SIGSETJMP 685 typedef struct { sigjmp_buf j; } jmp_buf_t; 686 # define setexit() sigsetjmp(reslab.j, 1) 687 # define _reset() siglongjmp(reslab.j, 1) 688 #else 689 typedef struct { jmp_buf j; } jmp_buf_t; 690 # define setexit() setjmp(reslab.j) 691 # define _reset() longjmp(reslab.j, 1) 692 #endif 693 694 #define getexit(a) (void) ((a) = reslab) 695 #define resexit(a) (void) (reslab = (a)) 696 697 #define cpybin(a, b) (void) ((a) = (b)) 698 699 extern jmp_buf_t reslab; 700 701 EXTERN Char *gointr; /* Label for an onintr transfer */ 702 703 extern struct sigaction parintr; /* Parents interrupt catch */ 704 extern struct sigaction parterm; /* Parents terminate catch */ 705 706 /* 707 * Lexical definitions. 708 * 709 * All lexical space is allocated dynamically. 710 * The eighth/sixteenth bit of characters is used to prevent recognition, 711 * and eventually stripped. 712 */ 713 #define META 0200 714 #define ASCII 0177 715 #ifdef WIDE_STRINGS /* Implies SHORT_STRINGS */ 716 /* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */ 717 /* 718 * Notice 719 * 720 * By fix for handling unicode name file, 32nd bit is used. 721 * We need use '&' instead of '> or <' when comparing with INVALID_BYTE etc.. 722 * Cast to uChar is not recommended, 723 * becase Char is 4bytes but uChar is 8bytes on I32LP64. */ 724 # define QUOTE 0x80000000 725 # define TRIM 0x7FFFFFFF /* Mask to strip quote bit */ 726 # define UNDER 0x08000000 /* Underline flag */ 727 # define BOLD 0x04000000 /* Bold flag */ 728 # define STANDOUT 0x02000000 /* Standout flag */ 729 # define LITERAL 0x01000000 /* Literal character flag */ 730 # define ATTRIBUTES 0x0F000000 /* The bits used for attributes */ 731 # define INVALID_BYTE 0xF0000000 /* Invalid character on input */ 732 # ifdef SOLARIS2 733 # define CHAR 0x30FFFFFF /* Mask to mask out the character */ 734 # else 735 # define CHAR 0x00FFFFFF /* Mask to mask out the character */ 736 # endif 737 #elif defined (SHORT_STRINGS) 738 # define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */ 739 # define TRIM 0073777 /* Mask to strip quote/lit bit */ 740 # define UNDER 0040000 /* Underline flag */ 741 # define BOLD 0020000 /* Bold flag */ 742 # define STANDOUT 0010000 /* Standout flag */ 743 # define LITERAL 0004000 /* Literal character flag */ 744 # define ATTRIBUTES 0074000 /* The bits used for attributes */ 745 # define INVALID_BYTE 0 746 # define CHAR 0000377 /* Mask to mask out the character */ 747 #else 748 # define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */ 749 # define TRIM 0177 /* Mask to strip quote bit */ 750 # define UNDER 0000000 /* No extra bits to do both */ 751 # define BOLD 0000000 /* Bold flag */ 752 # define STANDOUT META /* Standout flag */ 753 # define LITERAL 0000000 /* Literal character flag */ 754 # define ATTRIBUTES 0200 /* The bits used for attributes */ 755 # define INVALID_BYTE 0 756 # define CHAR 0000177 /* Mask to mask out the character */ 757 #endif 758 #define CHAR_DBWIDTH (LITERAL|(LITERAL-1)) 759 760 # define MAX_UTF32 0x7FFFFFFF /* max UTF32 is U+7FFFFFFF */ 761 762 EXTERN int AsciiOnly; /* If set only 7 bits expected in characters */ 763 764 /* 765 * Each level of input has a buffered input structure. 766 * There are one or more blocks of buffered input for each level, 767 * exactly one if the input is seekable and tell is available. 768 * In other cases, the shell buffers enough blocks to keep all loops 769 * in the buffer. 770 * 771 * If (WIDE_STRINGS && cantell), fbobp is always a byte offset, but 772 * (fseekp - fbobp) and (feobp - fbobp) are character offsets (usable for 773 * fbuf indexing). 774 * 775 * If (!cantell), all offsets are character offsets; if (!WIDE_STRINGS), there 776 * is no difference between byte and character offsets. 777 */ 778 EXTERN struct Bin { 779 off_t Bfseekp; /* Seek pointer, generally != lseek() value */ 780 off_t Bfbobp; /* Seekp of beginning of buffers */ 781 off_t Bfeobp; /* Seekp of end of buffers */ 782 int Bfblocks; /* Number of buffer blocks */ 783 Char **Bfbuf; /* The array of buffer blocks */ 784 #ifdef WIDE_STRINGS 785 /* Number of bytes in each character if (cantell) */ 786 unsigned char Bfclens[BUFSIZE + 1]; 787 #endif 788 } B; 789 790 /* 791 * This structure allows us to seek inside aliases 792 */ 793 struct Ain { 794 int type; 795 #define TCSH_I_SEEK 0 /* Invalid seek */ 796 #define TCSH_A_SEEK 1 /* Alias seek */ 797 #define TCSH_F_SEEK 2 /* File seek */ 798 #define TCSH_E_SEEK 3 /* Eval seek */ 799 union { 800 off_t _f_seek; /* A byte offset if (cantell) */ 801 Char* _c_seek; 802 } fc; 803 #define f_seek fc._f_seek 804 #define c_seek fc._c_seek 805 Char **a_seek; 806 } ; 807 808 extern int aret; /* Type of last char returned */ 809 #define SEEKEQ(a, b) ((a)->type == (b)->type && \ 810 (a)->f_seek == (b)->f_seek && \ 811 (a)->a_seek == (b)->a_seek) 812 813 #define fseekp B.Bfseekp 814 #define fbobp B.Bfbobp 815 #define feobp B.Bfeobp 816 #define fblocks B.Bfblocks 817 #define fbuf B.Bfbuf 818 #define fclens B.Bfclens 819 820 /* 821 * The shell finds commands in loops by reseeking the input 822 * For whiles, in particular, it reseeks to the beginning of the 823 * line the while was on; hence the while placement restrictions. 824 */ 825 EXTERN struct Ain lineloc; 826 827 EXTERN int cantell; /* Is current source tellable ? */ 828 829 /* 830 * Input lines are parsed into doubly linked circular 831 * lists of words of the following form. 832 */ 833 struct wordent { 834 Char *word; 835 struct wordent *prev; 836 struct wordent *next; 837 }; 838 839 /* 840 * During word building, both in the initial lexical phase and 841 * when expanding $ variable substitutions, expansion by `!' and `$' 842 * must be inhibited when reading ahead in routines which are themselves 843 * processing `!' and `$' expansion or after characters such as `\' or in 844 * quotations. The following flags are passed to the getC routines 845 * telling them which of these substitutions are appropriate for the 846 * next character to be returned. 847 */ 848 #define DODOL 1 849 #define DOEXCL 2 850 #define DOALL DODOL|DOEXCL 851 852 /* 853 * Labuf implements a general buffer for lookahead during lexical operations. 854 * Text which is to be placed in the input stream can be stuck here. 855 * We stick parsed ahead $ constructs during initial input, 856 * process id's from `$$', and modified variable values (from qualifiers 857 * during expansion in sh.dol.c) here. 858 */ 859 extern struct Strbuf labuf; 860 EXTERN size_t lap; /* N/A if == labuf.len, index into labuf.s otherwise */ 861 862 /* 863 * Parser structure 864 * 865 * Each command is parsed to a tree of command structures and 866 * flags are set bottom up during this process, to be propagated down 867 * as needed during the semantics/exeuction pass (sh.sem.c). 868 */ 869 struct command { 870 unsigned char t_dtyp; /* Type of node */ 871 #define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */ 872 #define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */ 873 #define NODE_PIPE 3 /* t_dlef | t_drit */ 874 #define NODE_LIST 4 /* t_dlef ; t_drit */ 875 #define NODE_OR 5 /* t_dlef || t_drit */ 876 #define NODE_AND 6 /* t_dlef && t_drit */ 877 unsigned char t_nice; /* Nice value */ 878 #ifdef apollo 879 unsigned char t_systype; /* System environment */ 880 #endif 881 unsigned long t_dflg; /* Flags, e.g. F_AMPERSAND|... */ 882 /* save these when re-doing */ 883 #ifndef apollo 884 #define F_SAVE (F_NICE|F_TIME|F_NOHUP|F_HUP) 885 #else 886 #define F_SAVE (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER) 887 #endif 888 #define F_AMPERSAND (1<<0) /* executes in background */ 889 #define F_APPEND (1<<1) /* output is redirected >> */ 890 #define F_PIPEIN (1<<2) /* input is a pipe */ 891 #define F_PIPEOUT (1<<3) /* output is a pipe */ 892 #define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */ 893 #define F_NOINTERRUPT (1<<5) /* should be immune from intr's */ 894 /* spare */ 895 #define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */ 896 #define F_OVERWRITE (1<<8) /* output was ! */ 897 #define F_READ (1<<9) /* input redirection is << */ 898 #define F_REPEAT (1<<10) /* reexec aft if, repeat,... */ 899 #define F_NICE (1<<11) /* t_nice is meaningful */ 900 #define F_NOHUP (1<<12) /* nohup this command */ 901 #define F_TIME (1<<13) /* time this command */ 902 #define F_BACKQ (1<<14) /* command is in `` */ 903 #define F_HUP (1<<15) /* hup this command */ 904 #ifdef apollo 905 #define F_VER (1<<16) /* execute command under SYSTYPE */ 906 #endif 907 union { 908 Char *T_dlef; /* Input redirect word */ 909 struct command *T_dcar; /* Left part of list/pipe */ 910 } L; 911 union { 912 Char *T_drit; /* Output redirect word */ 913 struct command *T_dcdr; /* Right part of list/pipe */ 914 } R; 915 #define t_dlef L.T_dlef 916 #define t_dcar L.T_dcar 917 #define t_drit R.T_drit 918 #define t_dcdr R.T_dcdr 919 Char **t_dcom; /* Command/argument vector */ 920 struct command *t_dspr; /* Pointer to ()'d subtree */ 921 }; 922 923 924 /* 925 * The keywords for the parser 926 */ 927 #define TC_BREAK 0 928 #define TC_BRKSW 1 929 #define TC_CASE 2 930 #define TC_DEFAULT 3 931 #define TC_ELSE 4 932 #define TC_END 5 933 #define TC_ENDIF 6 934 #define TC_ENDSW 7 935 #define TC_EXIT 8 936 #define TC_FOREACH 9 937 #define TC_GOTO 10 938 #define TC_IF 11 939 #define TC_LABEL 12 940 #define TC_LET 13 941 #define TC_SET 14 942 #define TC_SWITCH 15 943 #define TC_TEST 16 944 #define TC_THEN 17 945 #define TC_WHILE 18 946 947 /* 948 * These are declared here because they want to be 949 * initialized in sh.init.c (to allow them to be made readonly) 950 */ 951 952 #if defined(hpux) && defined(__STDC__) && !defined(__GNUC__) 953 /* Avoid hpux ansi mode spurious warnings */ 954 typedef void (*bfunc_t) (); 955 #else 956 typedef void (*bfunc_t) (Char **, struct command *); 957 #endif /* hpux && __STDC__ && !__GNUC__ */ 958 959 extern const struct biltins { 960 const char *bname; 961 bfunc_t bfunct; 962 int minargs, maxargs; 963 } bfunc[]; 964 extern int nbfunc; 965 #ifdef WINNT_NATIVE 966 extern struct biltins nt_bfunc[]; 967 extern int nt_nbfunc; 968 #endif /* WINNT_NATIVE*/ 969 extern int bequiet; 970 971 extern struct srch { 972 const char *s_name; 973 int s_value; 974 } srchn[]; 975 extern int nsrchn; 976 977 /* 978 * Structure defining the existing while/foreach loops at this 979 * source level. Loops are implemented by seeking back in the 980 * input. For foreach (fe), the word list is attached here. 981 */ 982 EXTERN struct whyle { 983 struct Ain w_start; /* Point to restart loop */ 984 struct Ain w_end; /* End of loop (0 if unknown) */ 985 Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */ 986 Char *w_fename; /* Name for fe */ 987 struct whyle *w_next; /* Next (more outer) loop */ 988 } *whyles; 989 990 /* 991 * Variable structure 992 * 993 * Aliases and variables are stored in AVL balanced binary trees. 994 */ 995 EXTERN struct varent { 996 Char **vec; /* Array of words which is the value */ 997 Char *v_name; /* Name of variable/alias */ 998 int v_flags; /* Flags */ 999 #define VAR_ALL -1 1000 #define VAR_READONLY 1 1001 #define VAR_READWRITE 2 1002 #define VAR_NOGLOB 4 1003 #define VAR_FIRST 32 1004 #define VAR_LAST 64 1005 struct varent *v_link[3]; /* The links, see below */ 1006 int v_bal; /* Balance factor */ 1007 } shvhed IZERO_STRUCT, aliases IZERO_STRUCT; 1008 1009 #define v_left v_link[0] 1010 #define v_right v_link[1] 1011 #define v_parent v_link[2] 1012 1013 #define adrof(v) adrof1(v, &shvhed) 1014 #define varval(v) value1(v, &shvhed) 1015 1016 /* 1017 * The following are for interfacing redo substitution in 1018 * aliases to the lexical routines. 1019 */ 1020 EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */ 1021 EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */ 1022 EXTERN Char **alvec IZERO_STRUCT, 1023 *alvecp IZERO_STRUCT;/* The (remnants of) alias vector */ 1024 1025 /* 1026 * Filename/command name expansion variables 1027 */ 1028 1029 #ifndef MAXPATHLEN 1030 # ifdef PATH_MAX 1031 # define MAXPATHLEN PATH_MAX 1032 # else 1033 # define MAXPATHLEN 2048 1034 # endif 1035 #endif /* MAXPATHLEN */ 1036 1037 #ifndef HAVENOLIMIT 1038 /* 1039 * resource limits 1040 */ 1041 extern struct limits { 1042 int limconst; 1043 const char *limname; 1044 int limdiv; 1045 const char *limscale; 1046 } limits[]; 1047 #endif /* !HAVENOLIMIT */ 1048 1049 /* 1050 * History list 1051 * 1052 * Each history list entry contains an embedded wordlist 1053 * from the scanner, a number for the event, and a reference count 1054 * to aid in discarding old entries. 1055 * 1056 * Essentially "invisible" entries are put on the history list 1057 * when history substitution includes modifiers, and thrown away 1058 * at the next discarding since their event numbers are very negative. 1059 */ 1060 EXTERN struct Hist { 1061 struct wordent Hlex; 1062 int Hnum; /* eventno when inserted into history list */ 1063 int Href; 1064 time_t Htime; 1065 Char *histline; 1066 struct Hist *Hnext, *Hprev; /* doubly linked list */ 1067 unsigned Hhash; /* hash value of command line */ 1068 } Histlist IZERO_STRUCT; 1069 1070 extern struct wordent paraml; /* Current lexical word list */ 1071 EXTERN int eventno; /* Next events number */ 1072 EXTERN int lastev; /* Last event reference (default) */ 1073 1074 EXTERN Char HIST; /* history invocation character */ 1075 EXTERN Char HISTSUB; /* auto-substitute character */ 1076 EXTERN Char PRCH; /* Prompt symbol for regular users */ 1077 EXTERN Char PRCHROOT; /* Prompt symbol for root */ 1078 1079 /* 1080 * For operating systems with single case filenames (OS/2) 1081 */ 1082 #ifdef CASE_INSENSITIVE 1083 # ifdef WIDE_STRINGS 1084 # define samecase(x) (towlower(x)) 1085 # else 1086 # define samecase(x) (isupper((unsigned char)(x)) ? \ 1087 tolower((unsigned char)(x)) : (x)) 1088 # endif 1089 #else 1090 # define samecase(x) (x) 1091 #endif /* CASE_INSENSITIVE */ 1092 1093 /* 1094 * strings.h: 1095 */ 1096 #ifndef SHORT_STRINGS 1097 #define Strchr(a, b) strchr(a, b) 1098 #define Strrchr(a, b) strrchr(a, b) 1099 #define Strcat(a, b) strcat(a, b) 1100 #define Strncat(a, b, c) strncat(a, b, c) 1101 #define Strcpy(a, b) strcpy(a, b) 1102 #define Strncpy(a, b, c) strncpy(a, b, c) 1103 #define Strlen(a) strlen(a) 1104 #define Strcmp(a, b) strcmp(a, b) 1105 #define Strncmp(a, b, c) strncmp(a, b, c) 1106 #define Strcasecmp(a, b) strcasecmp(a, b) 1107 1108 #define Strspl(a, b) strspl(a, b) 1109 #define Strnsave(a, b) strnsave(a, b) 1110 #define Strsave(a) strsave(a) 1111 #define Strend(a) strend(a) 1112 #define Strstr(a, b) strstr(a, b) 1113 1114 #define str2short(a) (a) 1115 #define blk2short(a) saveblk(a) 1116 #define short2blk(a) saveblk(a) 1117 #define short2str(a) caching_strip(a) 1118 #else 1119 #if defined(WIDE_STRINGS) && !defined(UTF16_STRINGS) 1120 #define Strchr(a, b) wcschr(a, b) 1121 #define Strrchr(a, b) wcsrchr(a, b) 1122 #define Strcat(a, b) wcscat(a, b) 1123 #define Strncat(a, b, c) wcsncat(a, b, c) 1124 #define Strcpy(a, b) wcscpy(a, b) 1125 #define Strncpy(a, b, c) wcsncpy(a, b, c) 1126 #define Strlen(a) wcslen(a) 1127 #define Strcmp(a, b) wcscmp(a, b) 1128 #define Strncmp(a, b, c) wcsncmp(a, b, c) 1129 #else 1130 #define Strchr(a, b) s_strchr(a, b) 1131 #define Strrchr(a, b) s_strrchr(a, b) 1132 #define Strcat(a, b) s_strcat(a, b) 1133 #define Strncat(a, b, c) s_strncat(a, b, c) 1134 #define Strcpy(a, b) s_strcpy(a, b) 1135 #define Strncpy(a, b, c) s_strncpy(a, b, c) 1136 #define Strlen(a) s_strlen(a) 1137 #define Strcmp(a, b) s_strcmp(a, b) 1138 #define Strncmp(a, b, c) s_strncmp(a, b, c) 1139 #endif 1140 #define Strcasecmp(a, b) s_strcasecmp(a, b) 1141 1142 #define Strspl(a, b) s_strspl(a, b) 1143 #define Strnsave(a, b) s_strnsave(a, b) 1144 #define Strsave(a) s_strsave(a) 1145 #define Strend(a) s_strend(a) 1146 #define Strstr(a, b) s_strstr(a, b) 1147 #endif 1148 1149 /* 1150 * setname is a macro to save space (see sh.err.c) 1151 */ 1152 EXTERN const char *bname; 1153 1154 #define setname(a) (bname = (a)) 1155 1156 #ifdef VFORK 1157 EXTERN Char *Vsav; 1158 EXTERN Char *Vdp; 1159 EXTERN Char *Vexpath; 1160 EXTERN char **Vt; 1161 #endif /* VFORK */ 1162 1163 EXTERN Char **evalvec; 1164 EXTERN Char *evalp; 1165 1166 extern struct mesg { 1167 const char *iname; /* name from /usr/include */ 1168 const char *pname; /* print name */ 1169 } mesg[]; 1170 1171 /* word_chars is set by default to WORD_CHARS (or WORD_CHARS_VI) but can 1172 be overridden by the wordchars variable--if unset, reverts to 1173 WORD_CHARS (or WORD_CHARS_VI) */ 1174 1175 EXTERN Char *word_chars; 1176 1177 #define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ 1178 #define WORD_CHARS_VI "_" /* default chars besides alnums in words */ 1179 1180 EXTERN Char *STR_SHELLPATH; 1181 1182 #ifdef _PATH_BSHELL 1183 EXTERN Char *STR_BSHELL; 1184 #endif 1185 EXTERN Char *STR_WORD_CHARS; 1186 EXTERN Char *STR_WORD_CHARS_VI; 1187 EXTERN Char **STR_environ IZERO; 1188 1189 extern int dont_free; /* Tell free that we are in danger if we free */ 1190 1191 extern Char *INVPTR; 1192 extern Char **INVPPTR; 1193 1194 extern char *progname; 1195 extern int tcsh; 1196 extern int xlate_cr; 1197 extern int output_raw; 1198 extern int lbuffed; 1199 extern time_t Htime; 1200 extern int numeof; 1201 extern int insource; 1202 extern char linbuf[]; 1203 extern char *linp; 1204 extern int nsig; 1205 #ifdef VFORK 1206 extern int use_fork; 1207 #endif 1208 extern int tellwhat; 1209 extern int NoNLSRebind; 1210 #if !HAVE_DECL_ENVIRON 1211 extern char **environ; 1212 #endif 1213 1214 #include "tc.h" 1215 1216 #ifndef WINNT_NATIVE 1217 # ifdef NLS_CATALOGS 1218 # ifdef HAVE_FEATURES_H 1219 # include <features.h> 1220 # endif 1221 # ifdef HAVE_NL_LANGINFO 1222 # include <langinfo.h> 1223 # endif 1224 # ifdef __uxps__ 1225 # define gettxt gettxt_ds 1226 # endif 1227 # include <nl_types.h> 1228 # ifdef __uxps__ 1229 # undef gettxt 1230 # endif 1231 EXTERN nl_catd catd; 1232 # if defined(HAVE_ICONV) && defined(HAVE_NL_LANGINFO) 1233 # define CGETS(b, c, d) iconv_catgets(catd, b, c, d) 1234 # else 1235 # define CGETS(b, c, d) xcatgets(catd, b, c, d) 1236 # endif 1237 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1238 # else 1239 # define CGETS(b, c, d) d 1240 # define CSAVS(b, c, d) d 1241 # endif 1242 #else /* WINNT_NATIVE */ 1243 # define CGETS(b, c, d) nt_cgets( b, c, d) 1244 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1245 #endif /* WINNT_NATIVE */ 1246 1247 #if defined(FILEC) 1248 extern int filec; 1249 #endif /* FILEC */ 1250 1251 #include "sh.decls.h" 1252 /* 1253 * Since on some machines characters are unsigned, and the signed 1254 * keyword is not universally implemented, we treat all characters 1255 * as unsigned and sign extend them where we need. 1256 */ 1257 #define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a)) 1258 1259 /* 1260 * explanation for use by the "--help" option 1261 */ 1262 #define HELP_STRING "\ 1263 -b file batch mode, read and execute commands from `file' \n\ 1264 -c command run `command' from next argument \n\ 1265 -d load directory stack from `~/.cshdirs' \n\ 1266 -Dname[=value] define environment variable `name' to `value' (DomainOS only) \n\ 1267 -e exit on any error \n\ 1268 -f start faster by ignoring the start-up file \n\ 1269 -F use fork() instead of vfork() when spawning (ConvexOS only) \n\ 1270 -i interactive, even when input is not from a terminal \n\ 1271 -l act as a login shell, must be the only option specified \n\ 1272 -m load the start-up file, whether or not owned by effective user \n\ 1273 -n file no execute mode, just check syntax of the following `file' \n\ 1274 -q accept SIGQUIT for running under a debugger \n\ 1275 -s read commands from standard input \n\ 1276 -t read one line from standard input \n\ 1277 -v echo commands after history substitution \n\ 1278 -V like -v but including commands read from the start-up file \n\ 1279 -x echo commands immediately before execution \n\ 1280 -X like -x but including commands read from the start-up file \n\ 1281 --help print this message and exit \n\ 1282 --version print the version shell variable and exit \n\ 1283 \nSee the tcsh(1) manual page for detailed information.\n" 1284 1285 #include "tc.nls.h" 1286 1287 #endif /* _h_sh */ 1288