1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.h,v 3.165 2011/04/14 18:25:25 christos Exp $ */ 2 /* 3 * sh.h: Catch it all globals and includes file! 4 */ 5 /*- 6 * Copyright (c) 1980, 1991 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 #ifndef _h_sh 34 #define _h_sh 35 36 #include "config.h" 37 38 #include <stddef.h> 39 #include <signal.h> 40 41 #ifdef HAVE_ICONV 42 # include <iconv.h> 43 #endif 44 45 #ifdef HAVE_STDINT_H 46 # include <stdint.h> 47 #endif 48 49 #ifdef HAVE_INTTYPES_H 50 # include <inttypes.h> 51 #endif 52 53 #if !defined(HAVE_STDINT_H) && !defined(HAVE_INTTYPES_H) && !defined(WINNT_NATIVE) 54 typedef unsigned long intptr_t; 55 #endif 56 57 #ifndef EXTERN 58 # define EXTERN extern 59 #else /* !EXTERN */ 60 # ifdef WINNT_NATIVE 61 # define IZERO = 0 62 # define IZERO_STRUCT = {0} 63 # endif /* WINNT_NATIVE */ 64 #endif /* EXTERN */ 65 66 #ifndef IZERO 67 # define IZERO 68 #endif /* IZERO */ 69 #ifndef IZERO_STRUCT 70 # define IZERO_STRUCT 71 #endif /* IZERO_STRUCT */ 72 73 #ifndef WINNT_NATIVE 74 # define INIT_ZERO 75 # define INIT_ZERO_STRUCT 76 # define force_read xread 77 #endif /*!WINNT_NATIVE */ 78 79 #if defined(KANJI) && defined(WIDE_STRINGS) && defined(HAVE_NL_LANGINFO) && defined(CODESET) 80 #define AUTOSET_KANJI 81 #endif 82 /* 83 * Sanity 84 */ 85 #if defined(_POSIX_SOURCE) && !defined(POSIX) 86 # define POSIX 87 #endif 88 89 #if defined(POSIXJOBS) && !defined(BSDJOBS) 90 # define BSDJOBS 91 #endif 92 93 #define TMP_TEMPLATE ".XXXXXX" 94 95 #ifdef SHORT_STRINGS 96 # ifdef WIDE_STRINGS 97 #include <wchar.h> 98 # ifdef UTF16_STRINGS 99 typedef wint_t Char; 100 # else 101 typedef wchar_t Char; 102 #endif 103 typedef unsigned long uChar; 104 typedef wint_t eChar; /* Can contain any Char value or CHAR_ERR */ 105 #define CHAR_ERR WEOF /* Pretty please, use bit 31... */ 106 #define normal_mbtowc(PWC, S, N) rt_mbtowc(PWC, S, N) 107 #define reset_mbtowc() TCSH_IGNORE(mbtowc(NULL, NULL, 0)) 108 # else 109 typedef short Char; 110 typedef unsigned short uChar; 111 typedef int eChar; 112 #define CHAR_ERR (-1) 113 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 114 #define reset_mbtowc() ((void)0) 115 # endif 116 # define SAVE(a) (Strsave(str2short(a))) 117 #else 118 typedef char Char; 119 typedef unsigned char uChar; 120 typedef int eChar; 121 #define CHAR_ERR (-1) 122 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1) 123 #define reset_mbtowc() ((void)0) 124 # define SAVE(a) (strsave(a)) 125 #endif 126 127 #if !defined(__inline) && !defined(__GNUC__) && !defined(_MSC_VER) 128 #define __inline 129 #endif 130 /* Elide unused argument warnings */ 131 #define USE(a) (void) (a) 132 #define TCSH_IGNORE(a) tcsh_ignore((intptr_t)a) 133 static __inline void tcsh_ignore(intptr_t a) 134 { 135 USE(a); 136 } 137 138 /* 139 * Return true if the path is absolute 140 */ 141 #if defined(WINNT_NATIVE) 142 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 143 (Isalpha((p)[0]) && (p)[1] == ':')) 144 #elif defined(__CYGWIN__) 145 # define ABSOLUTEP(p) ((p)[0] == '/' || \ 146 (Isalpha((p)[0]) && (p)[1] == ':' && \ 147 ((p)[2] == '\0' || (p)[2] == '/'))) 148 #else /* !WINNT_NATIVE && !__CYGWIN__ */ 149 # define ABSOLUTEP(p) (*(p) == '/') 150 #endif /* WINNT_NATIVE || __CYGWIN__ */ 151 152 /* 153 * Fundamental definitions which may vary from system to system. 154 * 155 * BUFSIZE The i/o buffering size; also limits word size 156 * MAILINTVL How often to mailcheck; more often is more expensive 157 */ 158 #ifdef BUFSIZE 159 # if BUFSIZE < 4096 160 # undef BUFSIZE 161 # define BUFSIZE 4096 /* buffer size should be no less than this */ 162 # endif 163 #else 164 # define BUFSIZE 4096 165 #endif /* BUFSIZE */ 166 167 #define FORKSLEEP 10 /* delay loop on non-interactive fork failure */ 168 #define MAILINTVL 600 /* 10 minutes */ 169 170 #ifndef INBUFSIZE 171 # define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */ 172 #endif /* INBUFSIZE */ 173 174 175 /* 176 * What our builtin echo looks like 177 */ 178 #define NONE_ECHO 0 179 #define BSD_ECHO 1 180 #define SYSV_ECHO 2 181 #define BOTH_ECHO (BSD_ECHO|SYSV_ECHO) 182 183 #ifndef ECHO_STYLE 184 # if SYSVREL > 0 185 # define ECHO_STYLE SYSV_ECHO 186 # else /* SYSVREL == 0 */ 187 # define ECHO_STYLE BSD_ECHO 188 # endif /* SYSVREL */ 189 #endif /* ECHO_STYLE */ 190 191 /* 192 * The shell moves std in/out/diag and the old std input away from units 193 * 0, 1, and 2 so that it is easy to set up these standards for invoked 194 * commands. 195 */ 196 #define FSAFE 5 /* We keep the first 5 descriptors untouched */ 197 #define FSHTTY 15 /* /dev/tty when manip pgrps */ 198 #define FSHIN 16 /* Preferred desc for shell input */ 199 #define FSHOUT 17 /* ... shell output */ 200 #define FSHDIAG 18 /* ... shell diagnostics */ 201 #define FOLDSTD 19 /* ... old std input */ 202 203 #ifdef PROF 204 #define xexit(n) done(n) 205 #endif 206 207 #ifdef cray 208 # define word word_t /* sys/types.h defines word.. bad move! */ 209 #endif 210 211 #include <sys/types.h> 212 213 #ifdef cray 214 # undef word 215 #endif 216 217 /* 218 * Path separator in environment variables 219 */ 220 #ifndef PATHSEP 221 # if defined(__EMX__) || defined(WINNT_NATIVE) 222 # define PATHSEP ';' 223 # else /* unix */ 224 # define PATHSEP ':' 225 # endif /* __EMX__ || WINNT_NATIVE */ 226 #endif /* !PATHSEP */ 227 228 #if defined(__HP_CXD_SPP) && !defined(__hpux) 229 # include <sys/cnx_stat.h> 230 # define stat stat64 231 # define fstat fstat64 232 # define lstat lstat64 233 #endif /* __HP_CXD_SPP && !__hpux */ 234 235 #ifdef HAVE_LONG_LONG 236 typedef long long tcsh_number_t; 237 #else 238 typedef long tcsh_number_t; 239 #endif 240 /* 241 * This macro compares the st_dev field of struct stat. On aix on ibmESA 242 * st_dev is a structure, so comparison does not work. 243 */ 244 #ifndef DEV_DEV_COMPARE 245 # define DEV_DEV_COMPARE(x,y) ((x) == (y)) 246 #endif /* DEV_DEV_COMPARE */ 247 248 #ifdef _SEQUENT_ 249 # include <sys/procstats.h> 250 #endif /* _SEQUENT_ */ 251 #if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE) 252 # include <sys/times.h> 253 #endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */ 254 255 #ifdef NLS 256 # include <locale.h> 257 #endif /* NLS */ 258 259 #if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__) 260 # include <sys/param.h> 261 #endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */ 262 #include <sys/stat.h> 263 264 #if defined(BSDTIMES) || defined(BSDLIMIT) 265 # include <sys/time.h> 266 # if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__) 267 # include "/usr/ucbinclude/sys/resource.h" 268 # else 269 # ifdef convex 270 # define sysrusage cvxrusage 271 # include <sys/sysinfo.h> 272 # else 273 # define sysrusage rusage 274 # include <sys/resource.h> 275 # endif /* convex */ 276 # endif /* SYSVREL>3 */ 277 #endif /* BSDTIMES */ 278 279 #ifndef WINNT_NATIVE 280 # ifndef POSIX 281 # ifdef TERMIO 282 # include <termio.h> 283 # else /* SGTTY */ 284 # include <sgtty.h> 285 # endif /* TERMIO */ 286 # else /* POSIX */ 287 # ifndef _UWIN 288 # include <termios.h> 289 # else 290 # include <termio.h> 291 # endif /* _UWIN */ 292 # if SYSVREL > 3 || defined(__linux__) 293 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 294 # undef TIOCSLTC 295 # undef CSWTCH 296 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 297 # endif /* SYSVREL > 3 */ 298 # endif /* POSIX */ 299 #endif /* WINNT_NATIVE */ 300 301 #ifdef sonyrisc 302 # include <sys/ttold.h> 303 #endif /* sonyrisc */ 304 305 #if defined(POSIX) && !defined(WINNT_NATIVE) 306 # include <unistd.h> 307 308 /* 309 * the gcc+protoize version of <stdlib.h> 310 * redefines malloc(), so we define the following 311 * to avoid it. 312 */ 313 # if defined(SYSMALLOC) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX) 314 # define NO_FIX_MALLOC 315 # include <stdlib.h> 316 # else /* glibc */ 317 # define _GNU_STDLIB_H 318 # define malloc __malloc 319 # define free __free 320 # define calloc __calloc 321 # define realloc __realloc 322 # include <stdlib.h> 323 # undef malloc 324 # undef free 325 # undef calloc 326 # undef realloc 327 # endif /* glibc || sgi */ 328 #endif /* POSIX && !WINNT_NATIVE */ 329 #include <limits.h> 330 331 #if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) 332 # if !defined(pyr) && !defined(stellar) 333 # include <time.h> 334 # ifdef _MINIX 335 # define HZ CLOCKS_PER_SEC 336 # endif /* _MINIX */ 337 # endif /* !pyr && !stellar */ 338 #endif /* SYSVREL > 0 || _IBMR2 */ 339 340 /* In the following ifdef the DECOSF1 has been commented so that later 341 * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions... 342 */ 343 #if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO)) 344 # if !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) 345 # include <sys/ioctl.h> 346 # if SYSVREL > 3 || defined(__linux__) 347 # undef TIOCGLTC /* we don't need those, since POSIX has them */ 348 # undef TIOCSLTC 349 # undef CSWTCH 350 # define CSWTCH _POSIX_VDISABLE /* So job control works */ 351 # endif /* SYSVREL > 3 */ 352 # endif 353 #endif 354 355 #if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX) 356 #undef CSWTCH 357 #define CSWTCH _POSIX_VDISABLE 358 #endif 359 360 #if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__) 361 # include <sys/filio.h> 362 #endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */ 363 364 #if !defined(_MINIX) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D) 365 # include <sys/file.h> 366 #endif /* !_MINIX && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */ 367 368 #if !defined(O_RDONLY) || !defined(O_NDELAY) 369 # include <fcntl.h> 370 #endif 371 372 #include <errno.h> 373 374 #include <setjmp.h> 375 376 #include <stdarg.h> 377 378 #ifdef HAVE_DIRENT_H 379 # include <dirent.h> 380 #else 381 # ifdef HAVE_NDIR_H 382 # include <ndir.h> 383 # else 384 # include <sys/dir.h> 385 # endif 386 # define dirent direct 387 #endif /* HAVE_DIRENT_H */ 388 #ifndef HAVE_STRUCT_DIRENT_D_INO 389 # define d_ino d_fileno 390 #endif 391 #if defined(hpux) || defined(sgi) || defined(OREO) 392 # include <stdio.h> /* So the fgetpwent() prototypes work */ 393 #endif /* hpux || sgi || OREO */ 394 #ifndef WINNT_NATIVE 395 #include <pwd.h> 396 #include <grp.h> 397 #endif /* WINNT_NATIVE */ 398 #ifdef HAVE_SHADOW_H 399 # include <shadow.h> 400 #endif /* HAVE_SHADOW_H */ 401 #ifdef HAVE_AUTH_H 402 # include <auth.h> 403 #endif /* HAVE_AUTH_H */ 404 #if defined(BSD) && !defined(POSIX) 405 # include <strings.h> 406 # define strchr(a, b) index(a, b) 407 # define strrchr(a, b) rindex(a, b) 408 #else 409 # include <string.h> 410 #endif /* BSD */ 411 412 /* 413 * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not 414 * include it yet, so we include it here 415 */ 416 #if defined(sgi) && SYSVREL > 3 417 # include <sys/cdefs.h> 418 #endif /* sgi && SYSVREL > 3 */ 419 420 #ifdef REMOTEHOST 421 # ifdef ISC 422 # undef MAXHOSTNAMELEN /* Busted headers? */ 423 # endif 424 425 # include <netinet/in.h> 426 # include <arpa/inet.h> 427 # include <sys/socket.h> 428 # if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY) 429 # if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */ 430 # if !defined(sgi) 431 # if !defined(__CYGWIN__) 432 # define INET6 433 # endif /* __CYGWIN__ */ 434 # endif /* sgi */ 435 # endif /* __APPLE__ */ 436 # endif 437 # include <sys/uio.h> /* For struct iovec */ 438 #endif /* REMOTEHOST */ 439 440 #ifdef PURIFY 441 /* exit normally, allowing purify to trace leaks */ 442 # define _exit exit 443 typedef int pret_t; 444 #else /* !PURIFY */ 445 /* 446 * If your compiler complains, then you can either 447 * throw it away and get gcc or, use the following define 448 * and get rid of the typedef. 449 * [The 4.2/3BSD vax compiler does not like that] 450 * Both MULTIFLOW and PCC compilers exhbit this bug. -- sterling@netcom.com 451 */ 452 # if (defined(vax) || defined(uts) || defined(MULTIFLOW) || defined(PCC)) && !defined(__GNUC__) 453 # define pret_t void 454 # else /* !((vax || uts || MULTIFLOW || PCC) && !__GNUC__) */ 455 typedef void pret_t; 456 # endif /* (vax || uts || MULTIFLOW || PCC) && !__GNUC__ */ 457 #endif /* PURIFY */ 458 459 /* 460 * ASCII vs. EBCDIC 461 */ 462 #if 'Z' - 'A' == 25 463 # ifndef IS_ASCII 464 # define IS_ASCII 465 # endif 466 #endif 467 468 #include "sh.types.h" 469 470 #if !HAVE_DECL_GETPGRP 471 # ifndef GETPGRP_VOID 472 extern pid_t getpgrp (int); 473 # else 474 extern pid_t getpgrp (void); 475 # endif 476 #endif 477 478 #ifndef lint 479 typedef ptr_t memalign_t; 480 #else 481 typedef union { 482 char am_char, *am_char_p; 483 short am_short, *am_short_p; 484 int am_int, *am_int_p; 485 long am_long, *am_long_p; 486 float am_float, *am_float_p; 487 double am_double, *am_double_p; 488 } *memalign_t; 489 490 # define malloc lint_malloc 491 # define free lint_free 492 # define realloc lint_realloc 493 # define calloc lint_calloc 494 #endif 495 496 #ifdef SYSMALLOC 497 # define xmalloc(i) smalloc(i) 498 # define xrealloc(p, i) srealloc(p, i) 499 # define xcalloc(n, s) scalloc(n, s) 500 # define xfree sfree 501 #else 502 # define xmalloc(i) malloc(i) 503 # define xrealloc(p, i) realloc(p, i) 504 # define xcalloc(n, s) calloc(n, s) 505 # define xfree free 506 #endif /* SYSMALLOC */ 507 #include "sh.char.h" 508 #include "sh.err.h" 509 #include "sh.dir.h" 510 #include "sh.proc.h" 511 512 #include "pathnames.h" 513 514 515 /* 516 * C shell 517 * 518 * Bill Joy, UC Berkeley 519 * October, 1978; May 1980 520 * 521 * Jim Kulp, IIASA, Laxenburg Austria 522 * April, 1980 523 */ 524 525 #ifdef HESIOD 526 # include <hesiod.h> 527 #endif /* HESIOD */ 528 529 #ifdef REMOTEHOST 530 # include <netdb.h> 531 #endif /* REMOTEHOST */ 532 533 #ifndef MAXHOSTNAMELEN 534 # ifdef HOST_NAME_MAX 535 # define MAXHOSTNAMELEN (HOST_NAME_MAX + 1) 536 # elif defined(SCO) && (SYSVREL > 3) 537 # include <sys/socket.h> 538 # else 539 # define MAXHOSTNAMELEN 256 540 # endif 541 #endif /* MAXHOSTNAMELEN */ 542 543 544 545 #define eq(a, b) (Strcmp(a, b) == 0) 546 547 /* globone() flags */ 548 #define G_ERROR 0 /* default action: error if multiple words */ 549 #define G_IGNORE 1 /* ignore the rest of the words */ 550 #define G_APPEND 2 /* make a sentence by cat'ing the words */ 551 552 /* 553 * Global flags 554 */ 555 EXTERN int chkstop IZERO; /* Warned of stopped jobs... allow exit */ 556 557 #if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD) 558 # define CLOSE_ON_EXEC 559 #else 560 EXTERN int didcch IZERO; /* Have closed unused fd's for child */ 561 #endif /* (FIOCLEX && FIONCLEX) || F_SETFD */ 562 563 EXTERN int didfds IZERO; /* Have setup i/o fd's for child */ 564 EXTERN int doneinp IZERO; /* EOF indicator after reset from readc */ 565 EXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */ 566 EXTERN int child IZERO; /* Child shell ... errors cause exit */ 567 EXTERN int haderr IZERO; /* Reset was because of an error */ 568 EXTERN int intty IZERO; /* Input is a tty */ 569 EXTERN int intact IZERO; /* We are interactive... therefore prompt */ 570 EXTERN int justpr IZERO; /* Just print because of :p hist mod */ 571 EXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */ 572 EXTERN int neednote IZERO; /* Need to pnotify() */ 573 EXTERN int noexec IZERO; /* Don't execute, just syntax check */ 574 EXTERN int pjobs IZERO; /* want to print jobs if interrupted */ 575 EXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */ 576 EXTERN int handle_intr IZERO;/* Are we currently handling an interrupt? */ 577 EXTERN int havhash IZERO; /* path hashing is available */ 578 EXTERN int editing IZERO; /* doing filename expansion and line editing */ 579 EXTERN int noediting IZERO; /* initial $term defaulted to noedit */ 580 EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */ 581 EXTERN int anyerror IZERO; /* propagate errors from pipelines/backq */ 582 EXTERN int compat_expr IZERO;/* csh-style expressions? */ 583 EXTERN int isoutatty IZERO; /* is SHOUT a tty */ 584 EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */ 585 EXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */ 586 EXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */ 587 EXTERN int arun IZERO; /* Currently running multi-line-aliases */ 588 EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */ 589 EXTERN int inheredoc IZERO; /* Currently parsing a heredoc */ 590 /* We received a window change event */ 591 EXTERN volatile sig_atomic_t windowchg IZERO; 592 #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) 593 EXTERN int dspmbyte_ls; 594 #endif 595 596 /* 597 * Global i/o info 598 */ 599 EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */ 600 EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */ 601 extern Char *ffile; /* Name of shell file for $0 */ 602 extern int dolzero; /* if $?0 should return true... */ 603 604 extern char *seterr; /* Error message from scanner/parser */ 605 #ifndef errno 606 extern int errno; /* Error from C library routines */ 607 #endif 608 extern int exitset; 609 /* Temp name for << shell files in /tmp, for xfree() */ 610 EXTERN Char *shtemp IZERO; 611 612 #ifdef BSDTIMES 613 EXTERN struct timeval time0; /* Time at which the shell started */ 614 EXTERN struct sysrusage ru0; 615 #else 616 # ifdef _SEQUENT_ 617 EXTERN timeval_t time0; /* time at which shell started */ 618 EXTERN struct process_stats ru0; 619 # else /* _SEQUENT_ */ 620 # ifndef POSIX 621 EXTERN time_t time0; /* time at which shell started */ 622 # else /* POSIX */ 623 EXTERN clock_t time0; /* time at which shell started */ 624 EXTERN clock_t clk_tck; 625 # endif /* POSIX */ 626 EXTERN struct tms shtimes; /* shell and child times for process timing */ 627 # endif /* _SEQUENT_ */ 628 EXTERN time_t seconds0; 629 #endif /* BSDTIMES */ 630 631 #ifndef HZ 632 # define HZ 100 /* for division into seconds */ 633 #endif 634 635 /* 636 * Miscellany 637 */ 638 EXTERN Char *doldol; /* Character pid for $$ */ 639 EXTERN pid_t backpid; /* pid of the last background job */ 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 { sigjmp_buf j; } jmp_buf_t; 689 # define setexit() sigsetjmp(reslab.j, 1) 690 # define _reset() siglongjmp(reslab.j, 1) 691 #else 692 typedef struct { jmp_buf j; } jmp_buf_t; 693 # define setexit() setjmp(reslab.j) 694 # define _reset() longjmp(reslab.j, 1) 695 #endif 696 697 #define getexit(a) (void) ((a) = reslab) 698 #define resexit(a) (void) (reslab = (a)) 699 700 #define cpybin(a, b) (void) ((a) = (b)) 701 702 extern jmp_buf_t reslab; 703 704 EXTERN Char *gointr; /* Label for an onintr transfer */ 705 706 extern struct sigaction parintr; /* Parents interrupt catch */ 707 extern struct sigaction parterm; /* Parents terminate catch */ 708 709 /* 710 * Lexical definitions. 711 * 712 * All lexical space is allocated dynamically. 713 * The eighth/sixteenth bit of characters is used to prevent recognition, 714 * and eventually stripped. 715 */ 716 #define META 0200 717 #define ASCII 0177 718 #ifdef WIDE_STRINGS /* Implies SHORT_STRINGS */ 719 /* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */ 720 # define QUOTE 0x40000000 721 # define TRIM 0x3FFFFFFF /* Mask to strip quote bit */ 722 # define UNDER 0x08000000 /* Underline flag */ 723 # define BOLD 0x04000000 /* Bold flag */ 724 # define STANDOUT 0x02000000 /* Standout flag */ 725 # define LITERAL 0x01000000 /* Literal character flag */ 726 # define ATTRIBUTES 0x0F000000 /* The bits used for attributes */ 727 # define INVALID_BYTE 0x00800000 /* Invalid character on input */ 728 # ifdef SOLARIS2 729 # define CHAR 0x30FFFFFF /* Mask to mask out the character */ 730 # else 731 # define CHAR 0x00FFFFFF /* Mask to mask out the character */ 732 # endif 733 #elif defined (SHORT_STRINGS) 734 # define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */ 735 # define TRIM 0073777 /* Mask to strip quote/lit bit */ 736 # define UNDER 0040000 /* Underline flag */ 737 # define BOLD 0020000 /* Bold flag */ 738 # define STANDOUT 0010000 /* Standout flag */ 739 # define LITERAL 0004000 /* Literal character flag */ 740 # define ATTRIBUTES 0074000 /* The bits used for attributes */ 741 # define INVALID_BYTE 0 742 # define CHAR 0000377 /* Mask to mask out the character */ 743 #else 744 # define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */ 745 # define TRIM 0177 /* Mask to strip quote bit */ 746 # define UNDER 0000000 /* No extra bits to do both */ 747 # define BOLD 0000000 /* Bold flag */ 748 # define STANDOUT META /* Standout flag */ 749 # define LITERAL 0000000 /* Literal character flag */ 750 # define ATTRIBUTES 0200 /* The bits used for attributes */ 751 # define INVALID_BYTE 0 752 # define CHAR 0000177 /* Mask to mask out the character */ 753 #endif 754 #define CHAR_DBWIDTH (LITERAL|(LITERAL-1)) 755 756 EXTERN int AsciiOnly; /* If set only 7 bits expected in characters */ 757 758 /* 759 * Each level of input has a buffered input structure. 760 * There are one or more blocks of buffered input for each level, 761 * exactly one if the input is seekable and tell is available. 762 * In other cases, the shell buffers enough blocks to keep all loops 763 * in the buffer. 764 * 765 * If (WIDE_STRINGS && cantell), fbobp is always a byte offset, but 766 * (fseekp - fbobp) and (feobp - fbobp) are character offsets (usable for 767 * fbuf indexing). 768 * 769 * If (!cantell), all offsets are character offsets; if (!WIDE_STRINGS), there 770 * is no difference between byte and character offsets. 771 */ 772 EXTERN struct Bin { 773 off_t Bfseekp; /* Seek pointer, generally != lseek() value */ 774 off_t Bfbobp; /* Seekp of beginning of buffers */ 775 off_t Bfeobp; /* Seekp of end of buffers */ 776 int Bfblocks; /* Number of buffer blocks */ 777 Char **Bfbuf; /* The array of buffer blocks */ 778 #ifdef WIDE_STRINGS 779 /* Number of bytes in each character if (cantell) */ 780 unsigned char Bfclens[BUFSIZE + 1]; 781 #endif 782 } B; 783 784 /* 785 * This structure allows us to seek inside aliases 786 */ 787 struct Ain { 788 int type; 789 #define TCSH_I_SEEK 0 /* Invalid seek */ 790 #define TCSH_A_SEEK 1 /* Alias seek */ 791 #define TCSH_F_SEEK 2 /* File seek */ 792 #define TCSH_E_SEEK 3 /* Eval seek */ 793 union { 794 off_t _f_seek; /* A byte offset if (cantell) */ 795 Char* _c_seek; 796 } fc; 797 #define f_seek fc._f_seek 798 #define c_seek fc._c_seek 799 Char **a_seek; 800 } ; 801 802 extern int aret; /* Type of last char returned */ 803 #define SEEKEQ(a, b) ((a)->type == (b)->type && \ 804 (a)->f_seek == (b)->f_seek && \ 805 (a)->a_seek == (b)->a_seek) 806 807 #define fseekp B.Bfseekp 808 #define fbobp B.Bfbobp 809 #define feobp B.Bfeobp 810 #define fblocks B.Bfblocks 811 #define fbuf B.Bfbuf 812 #define fclens B.Bfclens 813 814 /* 815 * The shell finds commands in loops by reseeking the input 816 * For whiles, in particular, it reseeks to the beginning of the 817 * line the while was on; hence the while placement restrictions. 818 */ 819 EXTERN struct Ain lineloc; 820 821 EXTERN int cantell; /* Is current source tellable ? */ 822 823 /* 824 * Input lines are parsed into doubly linked circular 825 * lists of words of the following form. 826 */ 827 struct wordent { 828 Char *word; 829 struct wordent *prev; 830 struct wordent *next; 831 }; 832 833 /* 834 * During word building, both in the initial lexical phase and 835 * when expanding $ variable substitutions, expansion by `!' and `$' 836 * must be inhibited when reading ahead in routines which are themselves 837 * processing `!' and `$' expansion or after characters such as `\' or in 838 * quotations. The following flags are passed to the getC routines 839 * telling them which of these substitutions are appropriate for the 840 * next character to be returned. 841 */ 842 #define DODOL 1 843 #define DOEXCL 2 844 #define DOALL DODOL|DOEXCL 845 846 /* 847 * Labuf implements a general buffer for lookahead during lexical operations. 848 * Text which is to be placed in the input stream can be stuck here. 849 * We stick parsed ahead $ constructs during initial input, 850 * process id's from `$$', and modified variable values (from qualifiers 851 * during expansion in sh.dol.c) here. 852 */ 853 extern struct Strbuf labuf; 854 EXTERN size_t lap; /* N/A if == labuf.len, index into labuf.s otherwise */ 855 856 /* 857 * Parser structure 858 * 859 * Each command is parsed to a tree of command structures and 860 * flags are set bottom up during this process, to be propagated down 861 * as needed during the semantics/exeuction pass (sh.sem.c). 862 */ 863 struct command { 864 unsigned char t_dtyp; /* Type of node */ 865 #define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */ 866 #define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */ 867 #define NODE_PIPE 3 /* t_dlef | t_drit */ 868 #define NODE_LIST 4 /* t_dlef ; t_drit */ 869 #define NODE_OR 5 /* t_dlef || t_drit */ 870 #define NODE_AND 6 /* t_dlef && t_drit */ 871 unsigned char t_nice; /* Nice value */ 872 #ifdef apollo 873 unsigned char t_systype; /* System environment */ 874 #endif 875 unsigned long t_dflg; /* Flags, e.g. F_AMPERSAND|... */ 876 /* save these when re-doing */ 877 #ifndef apollo 878 #define F_SAVE (F_NICE|F_TIME|F_NOHUP|F_HUP) 879 #else 880 #define F_SAVE (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER) 881 #endif 882 #define F_AMPERSAND (1<<0) /* executes in background */ 883 #define F_APPEND (1<<1) /* output is redirected >> */ 884 #define F_PIPEIN (1<<2) /* input is a pipe */ 885 #define F_PIPEOUT (1<<3) /* output is a pipe */ 886 #define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */ 887 #define F_NOINTERRUPT (1<<5) /* should be immune from intr's */ 888 /* spare */ 889 #define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */ 890 #define F_OVERWRITE (1<<8) /* output was ! */ 891 #define F_READ (1<<9) /* input redirection is << */ 892 #define F_REPEAT (1<<10) /* reexec aft if, repeat,... */ 893 #define F_NICE (1<<11) /* t_nice is meaningful */ 894 #define F_NOHUP (1<<12) /* nohup this command */ 895 #define F_TIME (1<<13) /* time this command */ 896 #define F_BACKQ (1<<14) /* command is in `` */ 897 #define F_HUP (1<<15) /* hup this command */ 898 #ifdef apollo 899 #define F_VER (1<<16) /* execute command under SYSTYPE */ 900 #endif 901 union { 902 Char *T_dlef; /* Input redirect word */ 903 struct command *T_dcar; /* Left part of list/pipe */ 904 } L; 905 union { 906 Char *T_drit; /* Output redirect word */ 907 struct command *T_dcdr; /* Right part of list/pipe */ 908 } R; 909 #define t_dlef L.T_dlef 910 #define t_dcar L.T_dcar 911 #define t_drit R.T_drit 912 #define t_dcdr R.T_dcdr 913 Char **t_dcom; /* Command/argument vector */ 914 struct command *t_dspr; /* Pointer to ()'d subtree */ 915 }; 916 917 918 /* 919 * The keywords for the parser 920 */ 921 #define TC_BREAK 0 922 #define TC_BRKSW 1 923 #define TC_CASE 2 924 #define TC_DEFAULT 3 925 #define TC_ELSE 4 926 #define TC_END 5 927 #define TC_ENDIF 6 928 #define TC_ENDSW 7 929 #define TC_EXIT 8 930 #define TC_FOREACH 9 931 #define TC_GOTO 10 932 #define TC_IF 11 933 #define TC_LABEL 12 934 #define TC_LET 13 935 #define TC_SET 14 936 #define TC_SWITCH 15 937 #define TC_TEST 16 938 #define TC_THEN 17 939 #define TC_WHILE 18 940 941 /* 942 * These are declared here because they want to be 943 * initialized in sh.init.c (to allow them to be made readonly) 944 */ 945 946 #if defined(hpux) && defined(__STDC__) && !defined(__GNUC__) 947 /* Avoid hpux ansi mode spurious warnings */ 948 typedef void (*bfunc_t) (); 949 #else 950 typedef void (*bfunc_t) (Char **, struct command *); 951 #endif /* hpux && __STDC__ && !__GNUC__ */ 952 953 extern const struct biltins { 954 const char *bname; 955 bfunc_t bfunct; 956 int minargs, maxargs; 957 } bfunc[]; 958 extern int nbfunc; 959 #ifdef WINNT_NATIVE 960 extern struct biltins nt_bfunc[]; 961 extern int nt_nbfunc; 962 #endif /* WINNT_NATIVE*/ 963 extern int bequiet; 964 965 extern struct srch { 966 const char *s_name; 967 int s_value; 968 } srchn[]; 969 extern int nsrchn; 970 971 /* 972 * Structure defining the existing while/foreach loops at this 973 * source level. Loops are implemented by seeking back in the 974 * input. For foreach (fe), the word list is attached here. 975 */ 976 EXTERN struct whyle { 977 struct Ain w_start; /* Point to restart loop */ 978 struct Ain w_end; /* End of loop (0 if unknown) */ 979 Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */ 980 Char *w_fename; /* Name for fe */ 981 struct whyle *w_next; /* Next (more outer) loop */ 982 } *whyles; 983 984 /* 985 * Variable structure 986 * 987 * Aliases and variables are stored in AVL balanced binary trees. 988 */ 989 EXTERN struct varent { 990 Char **vec; /* Array of words which is the value */ 991 Char *v_name; /* Name of variable/alias */ 992 int v_flags; /* Flags */ 993 #define VAR_ALL -1 994 #define VAR_READONLY 1 995 #define VAR_READWRITE 2 996 #define VAR_NOGLOB 4 997 #define VAR_FIRST 32 998 #define VAR_LAST 64 999 struct varent *v_link[3]; /* The links, see below */ 1000 int v_bal; /* Balance factor */ 1001 } shvhed IZERO_STRUCT, aliases IZERO_STRUCT; 1002 1003 #define v_left v_link[0] 1004 #define v_right v_link[1] 1005 #define v_parent v_link[2] 1006 1007 #define adrof(v) adrof1(v, &shvhed) 1008 #define varval(v) value1(v, &shvhed) 1009 1010 /* 1011 * The following are for interfacing redo substitution in 1012 * aliases to the lexical routines. 1013 */ 1014 EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */ 1015 EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */ 1016 EXTERN Char **alvec IZERO_STRUCT, 1017 *alvecp IZERO_STRUCT;/* The (remnants of) alias vector */ 1018 1019 /* 1020 * Filename/command name expansion variables 1021 */ 1022 1023 #ifdef __CYGWIN__ 1024 # undef MAXPATHLEN 1025 #endif /* __CYGWIN__ */ 1026 1027 #ifndef MAXPATHLEN 1028 # ifdef PATH_MAX 1029 # define MAXPATHLEN PATH_MAX 1030 # else 1031 # define MAXPATHLEN 2048 1032 # endif 1033 #endif /* MAXPATHLEN */ 1034 1035 #ifndef HAVENOLIMIT 1036 /* 1037 * resource limits 1038 */ 1039 extern struct limits { 1040 int limconst; 1041 const char *limname; 1042 int limdiv; 1043 const char *limscale; 1044 } limits[]; 1045 #endif /* !HAVENOLIMIT */ 1046 1047 /* 1048 * History list 1049 * 1050 * Each history list entry contains an embedded wordlist 1051 * from the scanner, a number for the event, and a reference count 1052 * to aid in discarding old entries. 1053 * 1054 * Essentially "invisible" entries are put on the history list 1055 * when history substitution includes modifiers, and thrown away 1056 * at the next discarding since their event numbers are very negative. 1057 */ 1058 EXTERN struct Hist { 1059 struct wordent Hlex; 1060 int Hnum; /* eventno when inserted into history list */ 1061 int Href; 1062 time_t Htime; 1063 Char *histline; 1064 struct Hist *Hnext, *Hprev; /* doubly linked list */ 1065 unsigned Hhash; /* hash value of command line */ 1066 } Histlist IZERO_STRUCT; 1067 1068 EXTERN struct wordent paraml; /* Current lexical word list */ 1069 EXTERN int eventno; /* Next events number */ 1070 EXTERN int lastev; /* Last event reference (default) */ 1071 1072 EXTERN Char HIST; /* history invocation character */ 1073 EXTERN Char HISTSUB; /* auto-substitute character */ 1074 EXTERN Char PRCH; /* Prompt symbol for regular users */ 1075 EXTERN Char PRCHROOT; /* Prompt symbol for root */ 1076 1077 /* 1078 * For operating systems with single case filenames (OS/2) 1079 */ 1080 #ifdef CASE_INSENSITIVE 1081 # ifdef WIDE_STRINGS 1082 # define samecase(x) (towlower(x)) 1083 # else 1084 # define samecase(x) (isupper((unsigned char)(x)) ? \ 1085 tolower((unsigned char)(x)) : (x)) 1086 # endif 1087 #else 1088 # define samecase(x) (x) 1089 #endif /* CASE_INSENSITIVE */ 1090 1091 /* 1092 * strings.h: 1093 */ 1094 #ifndef SHORT_STRINGS 1095 #define Strchr(a, b) strchr(a, b) 1096 #define Strrchr(a, b) strrchr(a, b) 1097 #define Strcat(a, b) strcat(a, b) 1098 #define Strncat(a, b, c) strncat(a, b, c) 1099 #define Strcpy(a, b) strcpy(a, b) 1100 #define Strncpy(a, b, c) strncpy(a, b, c) 1101 #define Strlen(a) strlen(a) 1102 #define Strcmp(a, b) strcmp(a, b) 1103 #define Strncmp(a, b, c) strncmp(a, b, c) 1104 #define Strcasecmp(a, b) strcasecmp(a, b) 1105 1106 #define Strspl(a, b) strspl(a, b) 1107 #define Strnsave(a, b) strnsave(a, b) 1108 #define Strsave(a) strsave(a) 1109 #define Strend(a) strend(a) 1110 #define Strstr(a, b) strstr(a, b) 1111 1112 #define str2short(a) (a) 1113 #define blk2short(a) saveblk(a) 1114 #define short2blk(a) saveblk(a) 1115 #define short2str(a) caching_strip(a) 1116 #else 1117 #if defined(WIDE_STRINGS) && !defined(UTF16_STRINGS) 1118 #define Strchr(a, b) wcschr(a, b) 1119 #define Strrchr(a, b) wcsrchr(a, b) 1120 #define Strcat(a, b) wcscat(a, b) 1121 #define Strncat(a, b, c) wcsncat(a, b, c) 1122 #define Strcpy(a, b) wcscpy(a, b) 1123 #define Strncpy(a, b, c) wcsncpy(a, b, c) 1124 #define Strlen(a) wcslen(a) 1125 #define Strcmp(a, b) wcscmp(a, b) 1126 #define Strncmp(a, b, c) wcsncmp(a, b, c) 1127 #else 1128 #define Strchr(a, b) s_strchr(a, b) 1129 #define Strrchr(a, b) s_strrchr(a, b) 1130 #define Strcat(a, b) s_strcat(a, b) 1131 #define Strncat(a, b, c) s_strncat(a, b, c) 1132 #define Strcpy(a, b) s_strcpy(a, b) 1133 #define Strncpy(a, b, c) s_strncpy(a, b, c) 1134 #define Strlen(a) s_strlen(a) 1135 #define Strcmp(a, b) s_strcmp(a, b) 1136 #define Strncmp(a, b, c) s_strncmp(a, b, c) 1137 #endif 1138 #define Strcasecmp(a, b) s_strcasecmp(a, b) 1139 1140 #define Strspl(a, b) s_strspl(a, b) 1141 #define Strnsave(a, b) s_strnsave(a, b) 1142 #define Strsave(a) s_strsave(a) 1143 #define Strend(a) s_strend(a) 1144 #define Strstr(a, b) s_strstr(a, b) 1145 #endif 1146 1147 /* 1148 * setname is a macro to save space (see sh.err.c) 1149 */ 1150 EXTERN const char *bname; 1151 1152 #define setname(a) (bname = (a)) 1153 1154 #ifdef VFORK 1155 EXTERN Char *Vsav; 1156 EXTERN Char *Vdp; 1157 EXTERN Char *Vexpath; 1158 EXTERN char **Vt; 1159 #endif /* VFORK */ 1160 1161 EXTERN Char **evalvec; 1162 EXTERN Char *evalp; 1163 1164 extern struct mesg { 1165 const char *iname; /* name from /usr/include */ 1166 const char *pname; /* print name */ 1167 } mesg[]; 1168 1169 /* word_chars is set by default to WORD_CHARS but can be overridden by 1170 the worchars variable--if unset, reverts to WORD_CHARS */ 1171 1172 EXTERN Char *word_chars; 1173 1174 #define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ 1175 1176 EXTERN Char *STR_SHELLPATH; 1177 1178 #ifdef _PATH_BSHELL 1179 EXTERN Char *STR_BSHELL; 1180 #endif 1181 EXTERN Char *STR_WORD_CHARS; 1182 EXTERN Char **STR_environ IZERO; 1183 1184 extern int dont_free; /* Tell free that we are in danger if we free */ 1185 1186 extern Char *INVPTR; 1187 extern Char **INVPPTR; 1188 1189 extern char *progname; 1190 extern int tcsh; 1191 extern int xlate_cr; 1192 extern int output_raw; 1193 extern int lbuffed; 1194 extern time_t Htime; 1195 extern int numeof; 1196 extern int insource; 1197 extern char linbuf[]; 1198 extern char *linp; 1199 extern int nsig; 1200 #ifdef VFORK 1201 extern int use_fork; 1202 #endif 1203 extern int tellwhat; 1204 extern int NoNLSRebind; 1205 #if !HAVE_DECL_ENVIRON 1206 extern char **environ; 1207 #endif 1208 1209 #include "tc.h" 1210 1211 #ifndef WINNT_NATIVE 1212 # ifdef NLS_CATALOGS 1213 # ifdef HAVE_FEATURES_H 1214 # include <features.h> 1215 # endif 1216 # ifdef HAVE_NL_LANGINFO 1217 # include <langinfo.h> 1218 # endif 1219 # ifdef __uxps__ 1220 # define gettxt gettxt_ds 1221 # endif 1222 # include <nl_types.h> 1223 # ifdef __uxps__ 1224 # undef gettxt 1225 # endif 1226 EXTERN nl_catd catd; 1227 # if defined(HAVE_ICONV) && defined(HAVE_NL_LANGINFO) 1228 # define CGETS(b, c, d) iconv_catgets(catd, b, c, d) 1229 # else 1230 # define CGETS(b, c, d) xcatgets(catd, b, c, d) 1231 # endif 1232 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1233 # else 1234 # define CGETS(b, c, d) d 1235 # define CSAVS(b, c, d) d 1236 # endif 1237 #else /* WINNT_NATIVE */ 1238 # define CGETS(b, c, d) nt_cgets( b, c, d) 1239 # define CSAVS(b, c, d) strsave(CGETS(b, c, d)) 1240 #endif /* WINNT_NATIVE */ 1241 1242 #if defined(FILEC) 1243 extern int filec; 1244 #endif /* FILEC */ 1245 1246 #include "sh.decls.h" 1247 /* 1248 * Since on some machines characters are unsigned, and the signed 1249 * keyword is not universally implemented, we treat all characters 1250 * as unsigned and sign extend them where we need. 1251 */ 1252 #define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a)) 1253 1254 /* 1255 * explanation for use by the "--help" option 1256 */ 1257 #define HELP_STRING "\ 1258 -b file batch mode, read and execute commands from `file' \n\ 1259 -c command run `command' from next argument \n\ 1260 -d load directory stack from `~/.cshdirs' \n\ 1261 -Dname[=value] define environment variable `name' to `value' (DomainOS only) \n\ 1262 -e exit on any error \n\ 1263 -f start faster by ignoring the start-up file \n\ 1264 -F use fork() instead of vfork() when spawning (ConvexOS only) \n\ 1265 -i interactive, even when input is not from a terminal \n\ 1266 -l act as a login shell, must be the only option specified \n\ 1267 -m load the start-up file, whether or not owned by effective user \n\ 1268 -n file no execute mode, just check syntax of the following `file' \n\ 1269 -q accept SIGQUIT for running under a debugger \n\ 1270 -s read commands from standard input \n\ 1271 -t read one line from standard input \n\ 1272 -v echo commands after history substitution \n\ 1273 -V like -v but including commands read from the start-up file \n\ 1274 -x echo commands immediately before execution \n\ 1275 -X like -x but including commands read from the start-up file \n\ 1276 --help print this message and exit \n\ 1277 --version print the version shell variable and exit \n\ 1278 \nSee the tcsh(1) manual page for detailed information.\n" 1279 1280 #include "tc.nls.h" 1281 1282 #endif /* _h_sh */ 1283