contrib/tcsh-6/sh.h

   1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.h,v 3.165 2011/04/14 18:25:25 christos Exp $ */
   2 /*
   3  * sh.h: Catch it all globals and includes file!
   4  */
   5 /*-
   6  * Copyright (c) 1980, 1991 The Regents of the University of California.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33 #ifndef _h_sh
  34 #define _h_sh
  35
  36 /*
  37  * All xprintf with %S emit error because Char* used instead of wchar_t*
  38  * WARNS doesn't help, and CFLAGS is added before -Werror, so use a
  39  * pragma to turn off the format check.
  40  */
  41 #pragma GCC diagnostic ignored "-Wformat"
  42
  43 #include "config.h"
  44
  45 #include <stddef.h>
  46 #include <signal.h>
  47
  48 #ifdef HAVE_ICONV
  49 # include <iconv.h>
  50 #endif
  51
  52 #ifdef HAVE_STDINT_H
  53 # include <stdint.h>
  54 #endif
  55
  56 #ifdef HAVE_INTTYPES_H
  57 # include <inttypes.h>
  58 #endif
  59
  60 #if !defined(HAVE_STDINT_H) && !defined(HAVE_INTTYPES_H) && !defined(WINNT_NATIVE)
  61 typedef unsigned long intptr_t;
  62 #endif
  63
  64 #ifndef EXTERN
  65 # define EXTERN extern
  66 #else /* !EXTERN */
  67 # ifdef WINNT_NATIVE
  68 #  define IZERO = 0
  69 #  define IZERO_STRUCT = {0}
  70 # endif /* WINNT_NATIVE */
  71 #endif /* EXTERN */
  72
  73 #ifndef IZERO
  74 # define IZERO
  75 #endif /* IZERO */
  76 #ifndef IZERO_STRUCT
  77 # define IZERO_STRUCT
  78 #endif /* IZERO_STRUCT */
  79
  80 #ifndef WINNT_NATIVE
  81 # define INIT_ZERO
  82 # define INIT_ZERO_STRUCT
  83 # define force_read xread
  84 #endif /*!WINNT_NATIVE */
  85
  86 #if defined(KANJI) && defined(WIDE_STRINGS) && defined(HAVE_NL_LANGINFO) && defined(CODESET)
  87 #define AUTOSET_KANJI
  88 #endif
  89 /*
  90  * Sanity
  91  */
  92 #if defined(_POSIX_SOURCE) && !defined(POSIX)
  93 # define POSIX
  94 #endif
  95
  96 #if defined(POSIXJOBS) && !defined(BSDJOBS)
  97 # define BSDJOBS
  98 #endif
  99
 100 #define TMP_TEMPLATE ".XXXXXX"
 101
 102 #ifdef SHORT_STRINGS
 103 # ifdef WIDE_STRINGS
 104 #include <wchar.h>
 105 #  ifdef UTF16_STRINGS
 106 typedef wint_t Char;
 107 #  else
 108 typedef wchar_t Char;
 109 #endif
 110 typedef unsigned long uChar;
 111 typedef wint_t eChar; /* Can contain any Char value or CHAR_ERR */
 112 #define CHAR_ERR WEOF /* Pretty please, use bit 31... */
 113 #define normal_mbtowc(PWC, S, N) rt_mbtowc(PWC, S, N)
 114 #define reset_mbtowc() TCSH_IGNORE(mbtowc(NULL, NULL, 0))
 115 # else
 116 typedef short Char;
 117 typedef unsigned short uChar;
 118 typedef int eChar;
 119 #define CHAR_ERR (-1)
 120 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1)
 121 #define reset_mbtowc() ((void)0)
 122 # endif
 123 # define SAVE(a) (Strsave(str2short(a)))
 124 #else
 125 typedef char Char;
 126 typedef unsigned char uChar;
 127 typedef int eChar;
 128 #define CHAR_ERR (-1)
 129 #define normal_mbtowc(PWC, S, N) ((void)(N), *(PWC) = (unsigned char)*(S), 1)
 130 #define reset_mbtowc() ((void)0)
 131 # define SAVE(a) (strsave(a))
 132 #endif
 133
 134 #if !defined(__inline) && !defined(__GNUC__) && !defined(_MSC_VER)
 135 #define __inline
 136 #endif
 137 /* Elide unused argument warnings */
 138 #define USE(a)  (void) (a)
 139 #define TCSH_IGNORE(a)  tcsh_ignore((intptr_t)a)
 140 static __inline void tcsh_ignore(intptr_t a)
 141 {
 142     USE(a);
 143 }
 144
 145 /*
 146  * Return true if the path is absolute
 147  */
 148 #if defined(WINNT_NATIVE)
 149 # define ABSOLUTEP(p)   ((p)[0] == '/' || \
 150     (Isalpha((p)[0]) && (p)[1] == ':'))
 151 #elif defined(__CYGWIN__)
 152 # define ABSOLUTEP(p)   ((p)[0] == '/' || \
 153     (Isalpha((p)[0]) && (p)[1] == ':' && \
 154      ((p)[2] == '\0' || (p)[2] == '/')))
 155 #else /* !WINNT_NATIVE && !__CYGWIN__ */
 156 # define ABSOLUTEP(p)   (*(p) == '/')
 157 #endif /* WINNT_NATIVE || __CYGWIN__ */
 158
 159 /*
 160  * Fundamental definitions which may vary from system to system.
 161  *
 162  *      BUFSIZE         The i/o buffering size; also limits word size
 163  *      MAILINTVL       How often to mailcheck; more often is more expensive
 164  */
 165 #ifdef BUFSIZE
 166 # if       BUFSIZE < 4096
 167 #  undef   BUFSIZE
 168 #  define  BUFSIZE      4096    /* buffer size should be no less than this */
 169 # endif
 170 #else
 171 # define   BUFSIZE      4096
 172 #endif /* BUFSIZE */
 173
 174 #define FORKSLEEP       10      /* delay loop on non-interactive fork failure */
 175 #define MAILINTVL       600     /* 10 minutes */
 176
 177 #ifndef INBUFSIZE
 178 # define INBUFSIZE    2*BUFSIZE /* Num input characters on the command line */
 179 #endif /* INBUFSIZE */
 180
 181
 182 /*
 183  * What our builtin echo looks like
 184  */
 185 #define NONE_ECHO       0
 186 #define BSD_ECHO        1
 187 #define SYSV_ECHO       2
 188 #define BOTH_ECHO       (BSD_ECHO|SYSV_ECHO)
 189
 190 #ifndef ECHO_STYLE
 191 # if SYSVREL > 0
 192 #  define ECHO_STYLE SYSV_ECHO
 193 # else /* SYSVREL == 0 */
 194 #  define ECHO_STYLE BSD_ECHO
 195 # endif /* SYSVREL */
 196 #endif /* ECHO_STYLE */
 197
 198 /*
 199  * The shell moves std in/out/diag and the old std input away from units
 200  * 0, 1, and 2 so that it is easy to set up these standards for invoked
 201  * commands.
 202  */
 203 #define FSAFE   5               /* We keep the first 5 descriptors untouched */
 204 #define FSHTTY  15              /* /dev/tty when manip pgrps */
 205 #define FSHIN   16              /* Preferred desc for shell input */
 206 #define FSHOUT  17              /* ... shell output */
 207 #define FSHDIAG 18              /* ... shell diagnostics */
 208 #define FOLDSTD 19              /* ... old std input */
 209
 210 #ifdef PROF
 211 #define xexit(n)        done(n)
 212 #endif
 213
 214 #ifdef cray
 215 # define word word_t           /* sys/types.h defines word.. bad move! */
 216 #endif
 217
 218 #include <sys/types.h>
 219
 220 #ifdef cray
 221 # undef word
 222 #endif
 223
 224 /*
 225  * Path separator in environment variables
 226  */
 227 #ifndef PATHSEP
 228 # if defined(__EMX__) || defined(WINNT_NATIVE)
 229 #  define PATHSEP ';'
 230 # else /* unix */
 231 #  define PATHSEP ':'
 232 # endif /* __EMX__ || WINNT_NATIVE */
 233 #endif /* !PATHSEP */
 234
 235 #if defined(__HP_CXD_SPP) && !defined(__hpux)
 236 # include <sys/cnx_stat.h>
 237 # define stat stat64
 238 # define fstat fstat64
 239 # define lstat lstat64
 240 #endif /* __HP_CXD_SPP && !__hpux */
 241
 242 #ifdef HAVE_LONG_LONG
 243 typedef long long tcsh_number_t;
 244 #else
 245 typedef long tcsh_number_t;
 246 #endif
 247 /*
 248  * This macro compares the st_dev field of struct stat. On aix on ibmESA
 249  * st_dev is a structure, so comparison does not work.
 250  */
 251 #ifndef DEV_DEV_COMPARE
 252 # define DEV_DEV_COMPARE(x,y)   ((x) == (y))
 253 #endif /* DEV_DEV_COMPARE */
 254
 255 #ifdef _SEQUENT_
 256 # include <sys/procstats.h>
 257 #endif /* _SEQUENT_ */
 258 #if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE)
 259 # include <sys/times.h>
 260 #endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */
 261
 262 #ifdef NLS
 263 # include <locale.h>
 264 #endif /* NLS */
 265
 266 #if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__)
 267 # include <sys/param.h>
 268 #endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */
 269 #include <sys/stat.h>
 270
 271 #if defined(BSDTIMES) || defined(BSDLIMIT)
 272 # include <sys/time.h>
 273 # if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__)
 274 #  include "/usr/ucbinclude/sys/resource.h"
 275 # else
 276 #  ifdef convex
 277 #   define sysrusage cvxrusage
 278 #   include <sys/sysinfo.h>
 279 #  else
 280 #   define sysrusage rusage
 281 #   include <sys/resource.h>
 282 #  endif /* convex */
 283 # endif /* SYSVREL>3 */
 284 #endif /* BSDTIMES */
 285
 286 #ifndef WINNT_NATIVE
 287 # ifndef POSIX
 288 #  ifdef TERMIO
 289 #   include <termio.h>
 290 #  else /* SGTTY */
 291 #   include <sgtty.h>
 292 #  endif /* TERMIO */
 293 # else /* POSIX */
 294 #  ifndef _UWIN
 295 #   include <termios.h>
 296 #  else
 297 #   include <termio.h>
 298 #  endif /* _UWIN */
 299 #  if SYSVREL > 3 || defined(__linux__)
 300 #   undef TIOCGLTC      /* we don't need those, since POSIX has them */
 301 #   undef TIOCSLTC
 302 #   undef CSWTCH
 303 #   define CSWTCH _POSIX_VDISABLE       /* So job control works */
 304 #  endif /* SYSVREL > 3 */
 305 # endif /* POSIX */
 306 #endif /* WINNT_NATIVE */
 307
 308 #ifdef sonyrisc
 309 # include <sys/ttold.h>
 310 #endif /* sonyrisc */
 311
 312 #if defined(POSIX) && !defined(WINNT_NATIVE)
 313 # include <unistd.h>
 314
 315 /*
 316  * the gcc+protoize version of <stdlib.h>
 317  * redefines malloc(), so we define the following
 318  * to avoid it.
 319  */
 320 # if defined(SYSMALLOC) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX)
 321 #  define NO_FIX_MALLOC
 322 #  include <stdlib.h>
 323 # else /* glibc */
 324 #  define _GNU_STDLIB_H
 325 #  define malloc __malloc
 326 #  define free __free
 327 #  define calloc __calloc
 328 #  define realloc __realloc
 329 #  include <stdlib.h>
 330 #  undef malloc
 331 #  undef free
 332 #  undef calloc
 333 #  undef realloc
 334 # endif /* glibc || sgi */
 335 #endif /* POSIX && !WINNT_NATIVE */
 336 #include <limits.h>
 337
 338 #if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)
 339 # if !defined(pyr) && !defined(stellar)
 340 #  include <time.h>
 341 #  ifdef _MINIX
 342 #   define HZ CLOCKS_PER_SEC
 343 #  endif /* _MINIX */
 344 # endif /* !pyr && !stellar */
 345 #endif /* SYSVREL > 0 ||  _IBMR2 */
 346
 347 /* In the following ifdef the DECOSF1 has been commented so that later
 348  * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions...
 349  */
 350 #if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO))
 351 # if !defined(_VMS_POSIX) && !defined(WINNT_NATIVE)
 352 #  include <sys/ioctl.h>
 353 #  if SYSVREL > 3 || defined(__linux__)
 354 #   undef TIOCGLTC      /* we don't need those, since POSIX has them */
 355 #   undef TIOCSLTC
 356 #   undef CSWTCH
 357 #   define CSWTCH _POSIX_VDISABLE       /* So job control works */
 358 #  endif /* SYSVREL > 3 */
 359 # endif
 360 #endif
 361
 362 #if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX)
 363 #undef CSWTCH
 364 #define CSWTCH _POSIX_VDISABLE
 365 #endif
 366
 367 #if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__)
 368 # include <sys/filio.h>
 369 #endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */
 370
 371 #if !defined(_MINIX) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D)
 372 # include <sys/file.h>
 373 #endif  /* !_MINIX && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */
 374
 375 #if !defined(O_RDONLY) || !defined(O_NDELAY)
 376 # include <fcntl.h>
 377 #endif
 378
 379 #include <errno.h>
 380
 381 #include <setjmp.h>
 382
 383 #include <stdarg.h>
 384
 385 #ifdef HAVE_DIRENT_H
 386 # include <dirent.h>
 387 #else
 388 # ifdef HAVE_NDIR_H
 389 #  include <ndir.h>
 390 # else
 391 #  include <sys/dir.h>
 392 # endif
 393 # define dirent direct
 394 #endif /* HAVE_DIRENT_H */
 395 #ifndef HAVE_STRUCT_DIRENT_D_INO
 396 # define d_ino d_fileno
 397 #endif
 398 #if defined(hpux) || defined(sgi) || defined(OREO)
 399 # include <stdio.h>     /* So the fgetpwent() prototypes work */
 400 #endif /* hpux || sgi || OREO */
 401 #ifndef WINNT_NATIVE
 402 #include <pwd.h>
 403 #include <grp.h>
 404 #endif /* WINNT_NATIVE */
 405 #ifdef HAVE_SHADOW_H
 406 # include <shadow.h>
 407 #endif /* HAVE_SHADOW_H */
 408 #ifdef HAVE_AUTH_H
 409 # include <auth.h>
 410 #endif /* HAVE_AUTH_H */
 411 #if defined(BSD) && !defined(POSIX)
 412 # include <strings.h>
 413 # define strchr(a, b) index(a, b)
 414 # define strrchr(a, b) rindex(a, b)
 415 #else
 416 # include <string.h>
 417 #endif /* BSD */
 418
 419 /*
 420  * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not
 421  * include it yet, so we include it here
 422  */
 423 #if defined(sgi) && SYSVREL > 3
 424 # include <sys/cdefs.h>
 425 #endif /* sgi && SYSVREL > 3 */
 426
 427 #ifdef REMOTEHOST
 428 # ifdef ISC
 429 #  undef MAXHOSTNAMELEN /* Busted headers? */
 430 # endif
 431
 432 # include <netinet/in.h>
 433 # include <arpa/inet.h>
 434 # include <sys/socket.h>
 435 # if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY)
 436 #  if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */
 437 #   if !defined(sgi)
 438 #    if !defined(__CYGWIN__)
 439 #     define INET6
 440 #    endif /* __CYGWIN__ */
 441 #   endif /* sgi */
 442 #  endif /* __APPLE__ */
 443 # endif
 444 # include <sys/uio.h>   /* For struct iovec */
 445 #endif /* REMOTEHOST */
 446
 447 #ifdef PURIFY
 448 /* exit normally, allowing purify to trace leaks */
 449 # define _exit          exit
 450 typedef  int            pret_t;
 451 #else /* !PURIFY */
 452 /*
 453  * If your compiler complains, then you can either
 454  * throw it away and get gcc or, use the following define
 455  * and get rid of the typedef.
 456  * [The 4.2/3BSD vax compiler does not like that]
 457  * Both MULTIFLOW and PCC compilers exhbit this bug.  -- sterling@netcom.com
 458  */
 459 # if (defined(vax) || defined(uts) || defined(MULTIFLOW) || defined(PCC)) && !defined(__GNUC__)
 460 #  define pret_t void
 461 # else /* !((vax || uts || MULTIFLOW || PCC) && !__GNUC__) */
 462 typedef void pret_t;
 463 # endif /* (vax || uts || MULTIFLOW || PCC) && !__GNUC__ */
 464 #endif /* PURIFY */
 465
 466 /*
 467  * ASCII vs. EBCDIC
 468  */
 469 #if 'Z' - 'A' == 25
 470 # ifndef IS_ASCII
 471 #  define IS_ASCII
 472 # endif
 473 #endif
 474
 475 #include "sh.types.h"
 476
 477 #if !HAVE_DECL_GETPGRP
 478 # ifndef GETPGRP_VOID
 479 extern pid_t getpgrp (int);
 480 # else
 481 extern pid_t getpgrp (void);
 482 # endif
 483 #endif
 484
 485 #ifndef lint
 486 typedef ptr_t memalign_t;
 487 #else
 488 typedef union {
 489     char    am_char, *am_char_p;
 490     short   am_short, *am_short_p;
 491     int     am_int, *am_int_p;
 492     long    am_long, *am_long_p;
 493     float   am_float, *am_float_p;
 494     double  am_double, *am_double_p;
 495 }      *memalign_t;
 496
 497 # define malloc         lint_malloc
 498 # define free           lint_free
 499 # define realloc        lint_realloc
 500 # define calloc         lint_calloc
 501 #endif
 502
 503 #ifdef SYSMALLOC
 504 # define xmalloc(i)     smalloc(i)
 505 # define xrealloc(p, i) srealloc(p, i)
 506 # define xcalloc(n, s)  scalloc(n, s)
 507 # define xfree          sfree
 508 #else
 509 # define xmalloc(i)     malloc(i)
 510 # define xrealloc(p, i) realloc(p, i)
 511 # define xcalloc(n, s)  calloc(n, s)
 512 # define xfree          free
 513 #endif /* SYSMALLOC */
 514 #include "sh.char.h"
 515 #include "sh.err.h"
 516 #include "sh.dir.h"
 517 #include "sh.proc.h"
 518
 519 #include "pathnames.h"
 520
 521
 522 /*
 523  * C shell
 524  *
 525  * Bill Joy, UC Berkeley
 526  * October, 1978; May 1980
 527  *
 528  * Jim Kulp, IIASA, Laxenburg Austria
 529  * April, 1980
 530  */
 531
 532 #ifdef HESIOD
 533 # include <hesiod.h>
 534 #endif /* HESIOD */
 535
 536 #ifdef REMOTEHOST
 537 # include <netdb.h>
 538 #endif /* REMOTEHOST */
 539
 540 #ifndef MAXHOSTNAMELEN
 541 # ifdef HOST_NAME_MAX
 542 #  define MAXHOSTNAMELEN (HOST_NAME_MAX + 1)
 543 # elif defined(SCO) && (SYSVREL > 3)
 544 #  include <sys/socket.h>
 545 # else
 546 #  define MAXHOSTNAMELEN 256
 547 # endif
 548 #endif /* MAXHOSTNAMELEN */
 549
 550
 551
 552 #define eq(a, b)        (Strcmp(a, b) == 0)
 553
 554 /* globone() flags */
 555 #define G_ERROR         0       /* default action: error if multiple words */
 556 #define G_IGNORE        1       /* ignore the rest of the words            */
 557 #define G_APPEND        2       /* make a sentence by cat'ing the words    */
 558
 559 /*
 560  * Global flags
 561  */
 562 EXTERN int    chkstop IZERO;    /* Warned of stopped jobs... allow exit */
 563
 564 #if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD)
 565 # define CLOSE_ON_EXEC
 566 #else
 567 EXTERN int    didcch IZERO;     /* Have closed unused fd's for child */
 568 #endif /* (FIOCLEX && FIONCLEX) || F_SETFD */
 569
 570 EXTERN int    didfds IZERO;     /* Have setup i/o fd's for child */
 571 EXTERN int    doneinp IZERO;    /* EOF indicator after reset from readc */
 572 EXTERN int    exiterr IZERO;    /* Exit if error or non-zero exit status */
 573 EXTERN int    child IZERO;      /* Child shell ... errors cause exit */
 574 EXTERN int    haderr IZERO;     /* Reset was because of an error */
 575 EXTERN int    intty IZERO;      /* Input is a tty */
 576 EXTERN int    intact IZERO;     /* We are interactive... therefore prompt */
 577 EXTERN int    justpr IZERO;     /* Just print because of :p hist mod */
 578 EXTERN int    loginsh IZERO;    /* We are a loginsh -> .login/.logout */
 579 EXTERN int    neednote IZERO;   /* Need to pnotify() */
 580 EXTERN int    noexec IZERO;     /* Don't execute, just syntax check */
 581 EXTERN int    pjobs IZERO;      /* want to print jobs if interrupted */
 582 EXTERN int    setintr IZERO;    /* Set interrupts on/off -> Wait intr... */
 583 EXTERN int    handle_intr IZERO;/* Are we currently handling an interrupt? */
 584 EXTERN int    havhash IZERO;    /* path hashing is available */
 585 EXTERN int    editing IZERO;    /* doing filename expansion and line editing */
 586 EXTERN int    noediting IZERO;  /* initial $term defaulted to noedit */
 587 EXTERN int    bslash_quote IZERO;/* PWP: tcsh-style quoting?  (in sh.c) */
 588 EXTERN int    anyerror IZERO;   /* propagate errors from pipelines/backq */
 589 EXTERN int    compat_expr IZERO;/* csh-style expressions? */
 590 EXTERN int    isoutatty IZERO;  /* is SHOUT a tty */
 591 EXTERN int    isdiagatty IZERO;/* is SHDIAG a tty */
 592 EXTERN int    is1atty IZERO;    /* is file descriptor 1 a tty (didfds mode) */
 593 EXTERN int    is2atty IZERO;    /* is file descriptor 2 a tty (didfds mode) */
 594 EXTERN int    arun IZERO;       /* Currently running multi-line-aliases */
 595 EXTERN int     implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */
 596 EXTERN int    inheredoc IZERO;  /* Currently parsing a heredoc */
 597 /* We received a window change event */
 598 EXTERN volatile sig_atomic_t windowchg IZERO;
 599 #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE)
 600 EXTERN int    dspmbyte_ls;
 601 #endif
 602
 603 /*
 604  * Global i/o info
 605  */
 606 EXTERN Char   *arginp IZERO;    /* Argument input for sh -c and internal `xx` */
 607 EXTERN int     onelflg IZERO;   /* 2 -> need line for -t, 1 -> exit on read */
 608 extern Char   *ffile;           /* Name of shell file for $0 */
 609 extern int    dolzero;          /* if $?0 should return true... */
 610
 611 extern char *seterr;            /* Error message from scanner/parser */
 612 #ifndef errno
 613 extern int errno;               /* Error from C library routines */
 614 #endif
 615 extern int exitset;
 616 /* Temp name for << shell files in /tmp, for xfree() */
 617 EXTERN Char   *shtemp IZERO;
 618
 619 #ifdef BSDTIMES
 620 EXTERN struct timeval time0;    /* Time at which the shell started */
 621 EXTERN struct sysrusage ru0;
 622 #else
 623 # ifdef _SEQUENT_
 624 EXTERN timeval_t time0;         /* time at which shell started */
 625 EXTERN struct process_stats ru0;
 626 # else /* _SEQUENT_ */
 627 #  ifndef POSIX
 628 EXTERN time_t  time0;           /* time at which shell started */
 629 #  else /* POSIX */
 630 EXTERN clock_t time0;           /* time at which shell started */
 631 EXTERN clock_t clk_tck;
 632 #  endif /* POSIX */
 633 EXTERN struct tms shtimes;      /* shell and child times for process timing */
 634 # endif /* _SEQUENT_ */
 635 EXTERN time_t seconds0;
 636 #endif /* BSDTIMES */
 637
 638 #ifndef HZ
 639 # define HZ     100             /* for division into seconds */
 640 #endif
 641
 642 /*
 643  * Miscellany
 644  */
 645 EXTERN Char   *doldol;          /* Character pid for $$ */
 646 EXTERN pid_t   backpid;         /* pid of the last background job */
 647
 648 /*
 649  * Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now
 650  * cause pid's could be unsigned and that would break our -1 flag, and
 651  * uid_t and gid_t are not defined in all the systems so I would have to
 652  * make special cases for them. In the future...
 653  */
 654 EXTERN uid_t   uid, euid;       /* Invokers real and effective */
 655 EXTERN gid_t   gid, egid;       /* User and group ids */
 656 EXTERN pid_t   opgrp,           /* Initial pgrp and tty pgrp */
 657                shpgrp,          /* Pgrp of shell */
 658                tpgrp;           /* Terminal process group */
 659                                 /* If tpgrp is -1, leave tty alone! */
 660
 661 EXTERN Char   *Prompt;          /* The actual printed prompt or NULL */
 662 EXTERN Char   *RPrompt;         /* Right-hand side prompt or NULL */
 663
 664 /*
 665  * To be able to redirect i/o for builtins easily, the shell moves the i/o
 666  * descriptors it uses away from 0,1,2.
 667  * Ideally these should be in units which are closed across exec's
 668  * (this saves work) but for version 6, this is not usually possible.
 669  * The desired initial values for these descriptors are defined in
 670  * sh.local.h.
 671  */
 672 EXTERN int   SHIN IZERO;        /* Current shell input (script) */
 673 EXTERN int   SHOUT IZERO;       /* Shell output */
 674 EXTERN int   SHDIAG IZERO;      /* Diagnostic output... shell errs go here */
 675 EXTERN int   OLDSTD IZERO;      /* Old standard input (def for cmds) */
 676
 677
 678 #if (SYSVREL == 4 && defined(_UTS)) || defined(__linux__)
 679 /*
 680  * From: fadden@uts.amdahl.com (Andy McFadden)
 681  * we need sigsetjmp for UTS4, but not UTS2.1
 682  */
 683 # define SIGSETJMP
 684 #endif
 685
 686 /*
 687  * Error control
 688  *
 689  * Errors in scanning and parsing set up an error message to be printed
 690  * at the end and complete.  Other errors always cause a reset.
 691  * Because of source commands and .cshrc we need nested error catches.
 692  */
 693
 694 #ifdef SIGSETJMP
 695    typedef struct { sigjmp_buf j; } jmp_buf_t;
 696 # define setexit()  sigsetjmp(reslab.j, 1)
 697 # define _reset()    siglongjmp(reslab.j, 1)
 698 #else
 699    typedef struct { jmp_buf j; } jmp_buf_t;
 700 # define setexit()  setjmp(reslab.j)
 701 # define _reset()    longjmp(reslab.j, 1)
 702 #endif
 703
 704 #define getexit(a) (void) ((a) = reslab)
 705 #define resexit(a) (void) (reslab = (a))
 706
 707 #define cpybin(a, b) (void) ((a) = (b))
 708
 709 extern jmp_buf_t reslab;
 710
 711 EXTERN Char   *gointr;          /* Label for an onintr transfer */
 712
 713 extern struct sigaction parintr;        /* Parents interrupt catch */
 714 extern struct sigaction parterm;        /* Parents terminate catch */
 715
 716 /*
 717  * Lexical definitions.
 718  *
 719  * All lexical space is allocated dynamically.
 720  * The eighth/sixteenth bit of characters is used to prevent recognition,
 721  * and eventually stripped.
 722  */
 723 #define         META            0200
 724 #define         ASCII           0177
 725 #ifdef WIDE_STRINGS             /* Implies SHORT_STRINGS */
 726 /* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */
 727 # define        QUOTE           0x40000000
 728 # define        TRIM            0x3FFFFFFF /* Mask to strip quote bit */
 729 # define        UNDER           0x08000000 /* Underline flag */
 730 # define        BOLD            0x04000000 /* Bold flag */
 731 # define        STANDOUT        0x02000000 /* Standout flag */
 732 # define        LITERAL         0x01000000 /* Literal character flag */
 733 # define        ATTRIBUTES      0x0F000000 /* The bits used for attributes */
 734 # define        INVALID_BYTE    0x00800000 /* Invalid character on input */
 735 # ifdef SOLARIS2
 736 #  define       CHAR            0x30FFFFFF /* Mask to mask out the character */
 737 # else
 738 #  define       CHAR            0x00FFFFFF /* Mask to mask out the character */
 739 # endif
 740 #elif defined (SHORT_STRINGS)
 741 # define        QUOTE   ((Char) 0100000)/* 16nth char bit used for 'ing */
 742 # define        TRIM            0073777 /* Mask to strip quote/lit bit */
 743 # define        UNDER           0040000 /* Underline flag */
 744 # define        BOLD            0020000 /* Bold flag */
 745 # define        STANDOUT        0010000 /* Standout flag */
 746 # define        LITERAL         0004000 /* Literal character flag */
 747 # define        ATTRIBUTES      0074000 /* The bits used for attributes */
 748 # define        INVALID_BYTE    0
 749 # define        CHAR            0000377 /* Mask to mask out the character */
 750 #else
 751 # define        QUOTE   ((Char) 0200)   /* Eighth char bit used for 'ing */
 752 # define        TRIM            0177    /* Mask to strip quote bit */
 753 # define        UNDER           0000000 /* No extra bits to do both */
 754 # define        BOLD            0000000 /* Bold flag */
 755 # define        STANDOUT        META    /* Standout flag */
 756 # define        LITERAL         0000000 /* Literal character flag */
 757 # define        ATTRIBUTES      0200    /* The bits used for attributes */
 758 # define        INVALID_BYTE    0
 759 # define        CHAR            0000177 /* Mask to mask out the character */
 760 #endif
 761 #define         CHAR_DBWIDTH    (LITERAL|(LITERAL-1))
 762
 763 EXTERN int     AsciiOnly;       /* If set only 7 bits expected in characters */
 764
 765 /*
 766  * Each level of input has a buffered input structure.
 767  * There are one or more blocks of buffered input for each level,
 768  * exactly one if the input is seekable and tell is available.
 769  * In other cases, the shell buffers enough blocks to keep all loops
 770  * in the buffer.
 771  *
 772  * If (WIDE_STRINGS && cantell), fbobp is always a byte offset, but
 773  * (fseekp - fbobp) and (feobp - fbobp) are character offsets (usable for
 774  * fbuf indexing).
 775  *
 776  * If (!cantell), all offsets are character offsets; if (!WIDE_STRINGS), there
 777  * is no difference between byte and character offsets.
 778  */
 779 EXTERN struct Bin {
 780     off_t   Bfseekp;            /* Seek pointer, generally != lseek() value */
 781     off_t   Bfbobp;             /* Seekp of beginning of buffers */
 782     off_t   Bfeobp;             /* Seekp of end of buffers */
 783     int     Bfblocks;           /* Number of buffer blocks */
 784     Char  **Bfbuf;              /* The array of buffer blocks */
 785 #ifdef WIDE_STRINGS
 786     /* Number of bytes in each character if (cantell) */
 787     unsigned char Bfclens[BUFSIZE + 1];
 788 #endif
 789 }       B;
 790
 791 /*
 792  * This structure allows us to seek inside aliases
 793  */
 794 struct Ain {
 795     int type;
 796 #define TCSH_I_SEEK      0              /* Invalid seek */
 797 #define TCSH_A_SEEK      1              /* Alias seek */
 798 #define TCSH_F_SEEK      2              /* File seek */
 799 #define TCSH_E_SEEK      3              /* Eval seek */
 800     union {
 801         off_t _f_seek;          /* A byte offset if (cantell) */
 802         Char* _c_seek;
 803     } fc;
 804 #define f_seek fc._f_seek
 805 #define c_seek fc._c_seek
 806     Char **a_seek;
 807 } ;
 808
 809 extern int aret;                /* Type of last char returned */
 810 #define SEEKEQ(a, b) ((a)->type == (b)->type && \
 811                       (a)->f_seek == (b)->f_seek && \
 812                       (a)->a_seek == (b)->a_seek)
 813
 814 #define fseekp  B.Bfseekp
 815 #define fbobp   B.Bfbobp
 816 #define feobp   B.Bfeobp
 817 #define fblocks B.Bfblocks
 818 #define fbuf    B.Bfbuf
 819 #define fclens  B.Bfclens
 820
 821 /*
 822  * The shell finds commands in loops by reseeking the input
 823  * For whiles, in particular, it reseeks to the beginning of the
 824  * line the while was on; hence the while placement restrictions.
 825  */
 826 EXTERN struct Ain lineloc;
 827
 828 EXTERN int    cantell;          /* Is current source tellable ? */
 829
 830 /*
 831  * Input lines are parsed into doubly linked circular
 832  * lists of words of the following form.
 833  */
 834 struct wordent {
 835     Char   *word;
 836     struct wordent *prev;
 837     struct wordent *next;
 838 };
 839
 840 /*
 841  * During word building, both in the initial lexical phase and
 842  * when expanding $ variable substitutions, expansion by `!' and `$'
 843  * must be inhibited when reading ahead in routines which are themselves
 844  * processing `!' and `$' expansion or after characters such as `\' or in
 845  * quotations.  The following flags are passed to the getC routines
 846  * telling them which of these substitutions are appropriate for the
 847  * next character to be returned.
 848  */
 849 #define DODOL   1
 850 #define DOEXCL  2
 851 #define DOALL   DODOL|DOEXCL
 852
 853 /*
 854  * Labuf implements a general buffer for lookahead during lexical operations.
 855  * Text which is to be placed in the input stream can be stuck here.
 856  * We stick parsed ahead $ constructs during initial input,
 857  * process id's from `$$', and modified variable values (from qualifiers
 858  * during expansion in sh.dol.c) here.
 859  */
 860 extern struct Strbuf labuf;
 861 EXTERN size_t lap; /* N/A if == labuf.len, index into labuf.s otherwise */
 862
 863 /*
 864  * Parser structure
 865  *
 866  * Each command is parsed to a tree of command structures and
 867  * flags are set bottom up during this process, to be propagated down
 868  * as needed during the semantics/exeuction pass (sh.sem.c).
 869  */
 870 struct command {
 871     unsigned char   t_dtyp;     /* Type of node                  */
 872 #define NODE_COMMAND    1       /* t_dcom <t_dlef >t_drit        */
 873 #define NODE_PAREN      2       /* ( t_dspr ) <t_dlef >t_drit    */
 874 #define NODE_PIPE       3       /* t_dlef | t_drit               */
 875 #define NODE_LIST       4       /* t_dlef ; t_drit               */
 876 #define NODE_OR         5       /* t_dlef || t_drit              */
 877 #define NODE_AND        6       /* t_dlef && t_drit              */
 878     unsigned char   t_nice;     /* Nice value                    */
 879 #ifdef apollo
 880     unsigned char   t_systype;  /* System environment            */
 881 #endif
 882     unsigned long   t_dflg;     /* Flags, e.g. F_AMPERSAND|...   */
 883 /* save these when re-doing      */
 884 #ifndef apollo
 885 #define F_SAVE  (F_NICE|F_TIME|F_NOHUP|F_HUP)
 886 #else
 887 #define F_SAVE  (F_NICE|F_TIME|F_NOHUP||F_HUP|F_VER)
 888 #endif
 889 #define F_AMPERSAND     (1<<0)  /* executes in background        */
 890 #define F_APPEND        (1<<1)  /* output is redirected >>       */
 891 #define F_PIPEIN        (1<<2)  /* input is a pipe               */
 892 #define F_PIPEOUT       (1<<3)  /* output is a pipe              */
 893 #define F_NOFORK        (1<<4)  /* don't fork, last ()ized cmd   */
 894 #define F_NOINTERRUPT   (1<<5)  /* should be immune from intr's */
 895 /* spare */
 896 #define F_STDERR        (1<<7)  /* redirect unit 2 with unit 1   */
 897 #define F_OVERWRITE     (1<<8)  /* output was !                  */
 898 #define F_READ          (1<<9)  /* input redirection is <<       */
 899 #define F_REPEAT        (1<<10) /* reexec aft if, repeat,...     */
 900 #define F_NICE          (1<<11) /* t_nice is meaningful          */
 901 #define F_NOHUP         (1<<12) /* nohup this command            */
 902 #define F_TIME          (1<<13) /* time this command             */
 903 #define F_BACKQ         (1<<14) /* command is in ``              */
 904 #define F_HUP           (1<<15) /* hup this command              */
 905 #ifdef apollo
 906 #define F_VER           (1<<16) /* execute command under SYSTYPE */
 907 #endif
 908     union {
 909         Char   *T_dlef;         /* Input redirect word           */
 910         struct command *T_dcar; /* Left part of list/pipe        */
 911     }       L;
 912     union {
 913         Char   *T_drit;         /* Output redirect word          */
 914         struct command *T_dcdr; /* Right part of list/pipe       */
 915     }       R;
 916 #define t_dlef  L.T_dlef
 917 #define t_dcar  L.T_dcar
 918 #define t_drit  R.T_drit
 919 #define t_dcdr  R.T_dcdr
 920     Char  **t_dcom;             /* Command/argument vector       */
 921     struct command *t_dspr;     /* Pointer to ()'d subtree       */
 922 };
 923
 924
 925 /*
 926  * The keywords for the parser
 927  */
 928 #define TC_BREAK        0
 929 #define TC_BRKSW        1
 930 #define TC_CASE         2
 931 #define TC_DEFAULT      3
 932 #define TC_ELSE         4
 933 #define TC_END          5
 934 #define TC_ENDIF        6
 935 #define TC_ENDSW        7
 936 #define TC_EXIT         8
 937 #define TC_FOREACH      9
 938 #define TC_GOTO         10
 939 #define TC_IF           11
 940 #define TC_LABEL        12
 941 #define TC_LET          13
 942 #define TC_SET          14
 943 #define TC_SWITCH       15
 944 #define TC_TEST         16
 945 #define TC_THEN         17
 946 #define TC_WHILE        18
 947
 948 /*
 949  * These are declared here because they want to be
 950  * initialized in sh.init.c (to allow them to be made readonly)
 951  */
 952
 953 #if defined(hpux) && defined(__STDC__) && !defined(__GNUC__)
 954     /* Avoid hpux ansi mode spurious warnings */
 955 typedef void (*bfunc_t) ();
 956 #else
 957 typedef void (*bfunc_t) (Char **, struct command *);
 958 #endif /* hpux && __STDC__ && !__GNUC__ */
 959
 960 extern const struct biltins {
 961     const char   *bname;
 962     bfunc_t bfunct;
 963     int     minargs, maxargs;
 964 } bfunc[];
 965 extern int nbfunc;
 966 #ifdef WINNT_NATIVE
 967 extern struct biltins  nt_bfunc[];
 968 extern int nt_nbfunc;
 969 #endif /* WINNT_NATIVE*/
 970 extern int bequiet;
 971
 972 extern struct srch {
 973     const char *s_name;
 974     int  s_value;
 975 } srchn[];
 976 extern int nsrchn;
 977
 978 /*
 979  * Structure defining the existing while/foreach loops at this
 980  * source level.  Loops are implemented by seeking back in the
 981  * input.  For foreach (fe), the word list is attached here.
 982  */
 983 EXTERN struct whyle {
 984     struct Ain   w_start;       /* Point to restart loop */
 985     struct Ain   w_end;         /* End of loop (0 if unknown) */
 986     Char  **w_fe, **w_fe0;      /* Current/initial wordlist for fe */
 987     Char   *w_fename;           /* Name for fe */
 988     struct whyle *w_next;       /* Next (more outer) loop */
 989 }      *whyles;
 990
 991 /*
 992  * Variable structure
 993  *
 994  * Aliases and variables are stored in AVL balanced binary trees.
 995  */
 996 EXTERN struct varent {
 997     Char  **vec;                /* Array of words which is the value */
 998     Char   *v_name;             /* Name of variable/alias */
 999     int     v_flags;            /* Flags */
1000 #define VAR_ALL         -1
1001 #define VAR_READONLY    1
1002 #define VAR_READWRITE   2
1003 #define VAR_NOGLOB      4
1004 #define VAR_FIRST       32
1005 #define VAR_LAST        64
1006     struct varent *v_link[3];   /* The links, see below */
1007     int     v_bal;              /* Balance factor */
1008 }       shvhed IZERO_STRUCT, aliases IZERO_STRUCT;
1009
1010 #define v_left          v_link[0]
1011 #define v_right         v_link[1]
1012 #define v_parent        v_link[2]
1013
1014 #define adrof(v)        adrof1(v, &shvhed)
1015 #define varval(v)       value1(v, &shvhed)
1016
1017 /*
1018  * The following are for interfacing redo substitution in
1019  * aliases to the lexical routines.
1020  */
1021 EXTERN struct wordent *alhistp IZERO_STRUCT;/* Argument list (first) */
1022 EXTERN struct wordent *alhistt IZERO_STRUCT;/* Node after last in arg list */
1023 EXTERN Char  **alvec IZERO_STRUCT,
1024               *alvecp IZERO_STRUCT;/* The (remnants of) alias vector */
1025
1026 /*
1027  * Filename/command name expansion variables
1028  */
1029
1030 #ifdef __CYGWIN__
1031 # undef MAXPATHLEN
1032 #endif /* __CYGWIN__ */
1033
1034 #ifndef MAXPATHLEN
1035 # ifdef PATH_MAX
1036 #  define MAXPATHLEN PATH_MAX
1037 # else
1038 #  define MAXPATHLEN 2048
1039 # endif
1040 #endif /* MAXPATHLEN */
1041
1042 #ifndef HAVENOLIMIT
1043 /*
1044  * resource limits
1045  */
1046 extern struct limits {
1047     int         limconst;
1048     const char *limname;
1049     int         limdiv;
1050     const char *limscale;
1051 } limits[];
1052 #endif /* !HAVENOLIMIT */
1053
1054 /*
1055  * History list
1056  *
1057  * Each history list entry contains an embedded wordlist
1058  * from the scanner, a number for the event, and a reference count
1059  * to aid in discarding old entries.
1060  *
1061  * Essentially "invisible" entries are put on the history list
1062  * when history substitution includes modifiers, and thrown away
1063  * at the next discarding since their event numbers are very negative.
1064  */
1065 EXTERN struct Hist {
1066     struct wordent Hlex;
1067     int     Hnum;                /* eventno when inserted into history list  */
1068     int     Href;
1069     time_t  Htime;
1070     Char   *histline;
1071     struct Hist *Hnext, *Hprev;         /* doubly linked list */
1072     unsigned Hhash;                     /* hash value of command line */
1073 }       Histlist IZERO_STRUCT;
1074
1075 EXTERN struct wordent paraml;   /* Current lexical word list */
1076 EXTERN int     eventno;         /* Next events number */
1077 EXTERN int     lastev;          /* Last event reference (default) */
1078
1079 EXTERN Char    HIST;            /* history invocation character */
1080 EXTERN Char    HISTSUB;         /* auto-substitute character */
1081 EXTERN Char    PRCH;            /* Prompt symbol for regular users */
1082 EXTERN Char    PRCHROOT;        /* Prompt symbol for root */
1083
1084 /*
1085  * For operating systems with single case filenames (OS/2)
1086  */
1087 #ifdef CASE_INSENSITIVE
1088 # ifdef WIDE_STRINGS
1089 #  define samecase(x) (towlower(x))
1090 # else
1091 #  define samecase(x) (isupper((unsigned char)(x)) ? \
1092                        tolower((unsigned char)(x)) : (x))
1093 # endif
1094 #else
1095 # define samecase(x) (x)
1096 #endif /* CASE_INSENSITIVE */
1097
1098 /*
1099  * strings.h:
1100  */
1101 #ifndef SHORT_STRINGS
1102 #define Strchr(a, b)            strchr(a, b)
1103 #define Strrchr(a, b)           strrchr(a, b)
1104 #define Strcat(a, b)            strcat(a, b)
1105 #define Strncat(a, b, c)        strncat(a, b, c)
1106 #define Strcpy(a, b)            strcpy(a, b)
1107 #define Strncpy(a, b, c)        strncpy(a, b, c)
1108 #define Strlen(a)               strlen(a)
1109 #define Strcmp(a, b)            strcmp(a, b)
1110 #define Strncmp(a, b, c)        strncmp(a, b, c)
1111 #define Strcasecmp(a, b)        strcasecmp(a, b)
1112
1113 #define Strspl(a, b)            strspl(a, b)
1114 #define Strnsave(a, b)          strnsave(a, b)
1115 #define Strsave(a)              strsave(a)
1116 #define Strend(a)               strend(a)
1117 #define Strstr(a, b)            strstr(a, b)
1118
1119 #define str2short(a)            (a)
1120 #define blk2short(a)            saveblk(a)
1121 #define short2blk(a)            saveblk(a)
1122 #define short2str(a)            caching_strip(a)
1123 #else
1124 #if defined(WIDE_STRINGS) && !defined(UTF16_STRINGS)
1125 #define Strchr(a, b)            wcschr(a, b)
1126 #define Strrchr(a, b)           wcsrchr(a, b)
1127 #define Strcat(a, b)            wcscat(a, b)
1128 #define Strncat(a, b, c)        wcsncat(a, b, c)
1129 #define Strcpy(a, b)            wcscpy(a, b)
1130 #define Strncpy(a, b, c)        wcsncpy(a, b, c)
1131 #define Strlen(a)               wcslen(a)
1132 #define Strcmp(a, b)            wcscmp(a, b)
1133 #define Strncmp(a, b, c)        wcsncmp(a, b, c)
1134 #else
1135 #define Strchr(a, b)            s_strchr(a, b)
1136 #define Strrchr(a, b)           s_strrchr(a, b)
1137 #define Strcat(a, b)            s_strcat(a, b)
1138 #define Strncat(a, b, c)        s_strncat(a, b, c)
1139 #define Strcpy(a, b)            s_strcpy(a, b)
1140 #define Strncpy(a, b, c)        s_strncpy(a, b, c)
1141 #define Strlen(a)               s_strlen(a)
1142 #define Strcmp(a, b)            s_strcmp(a, b)
1143 #define Strncmp(a, b, c)        s_strncmp(a, b, c)
1144 #endif
1145 #define Strcasecmp(a, b)        s_strcasecmp(a, b)
1146
1147 #define Strspl(a, b)            s_strspl(a, b)
1148 #define Strnsave(a, b)          s_strnsave(a, b)
1149 #define Strsave(a)              s_strsave(a)
1150 #define Strend(a)               s_strend(a)
1151 #define Strstr(a, b)            s_strstr(a, b)
1152 #endif
1153
1154 /*
1155  * setname is a macro to save space (see sh.err.c)
1156  */
1157 EXTERN const char   *bname;
1158
1159 #define setname(a)      (bname = (a))
1160
1161 #ifdef VFORK
1162 EXTERN Char   *Vsav;
1163 EXTERN Char   *Vdp;
1164 EXTERN Char   *Vexpath;
1165 EXTERN char  **Vt;
1166 #endif /* VFORK */
1167
1168 EXTERN Char  **evalvec;
1169 EXTERN Char   *evalp;
1170
1171 extern struct mesg {
1172     const char   *iname;        /* name from /usr/include */
1173     const char *pname;          /* print name */
1174 } mesg[];
1175
1176 /* word_chars is set by default to WORD_CHARS but can be overridden by
1177    the worchars variable--if unset, reverts to WORD_CHARS */
1178
1179 EXTERN Char   *word_chars;
1180
1181 #define WORD_CHARS "*?_-.[]~="  /* default chars besides alnums in words */
1182
1183 EXTERN Char   *STR_SHELLPATH;
1184
1185 #ifdef _PATH_BSHELL
1186 EXTERN Char   *STR_BSHELL;
1187 #endif
1188 EXTERN Char   *STR_WORD_CHARS;
1189 EXTERN Char  **STR_environ IZERO;
1190
1191 extern int     dont_free;       /* Tell free that we are in danger if we free */
1192
1193 extern Char    *INVPTR;
1194 extern Char    **INVPPTR;
1195
1196 extern char    *progname;
1197 extern int      tcsh;
1198 extern int      xlate_cr;
1199 extern int      output_raw;
1200 extern int      lbuffed;
1201 extern time_t   Htime;
1202 extern int      numeof;
1203 extern int      insource;
1204 extern char     linbuf[];
1205 extern char     *linp;
1206 extern int      nsig;
1207 #ifdef VFORK
1208 extern int      use_fork;
1209 #endif
1210 extern int      tellwhat;
1211 extern int      NoNLSRebind;
1212 #if !HAVE_DECL_ENVIRON
1213 extern char   **environ;
1214 #endif
1215
1216 #include "tc.h"
1217
1218 #ifndef WINNT_NATIVE
1219 # ifdef NLS_CATALOGS
1220 #  ifdef HAVE_FEATURES_H
1221 #   include <features.h>
1222 #  endif
1223 #  ifdef HAVE_NL_LANGINFO
1224 #   include <langinfo.h>
1225 #  endif
1226 #  ifdef __uxps__
1227 #   define gettxt gettxt_ds
1228 #  endif
1229 #  include <nl_types.h>
1230 #  ifdef __uxps__
1231 #   undef gettxt
1232 #  endif
1233 EXTERN nl_catd catd;
1234 #  if defined(HAVE_ICONV) && defined(HAVE_NL_LANGINFO)
1235 #   define CGETS(b, c, d)       iconv_catgets(catd, b, c, d)
1236 #  else
1237 #   define CGETS(b, c, d)       xcatgets(catd, b, c, d)
1238 #  endif
1239 #  define CSAVS(b, c, d)        strsave(CGETS(b, c, d))
1240 # else
1241 #  define CGETS(b, c, d)        d
1242 #  define CSAVS(b, c, d)        d
1243 # endif
1244 #else /* WINNT_NATIVE */
1245 # define CGETS(b, c, d) nt_cgets( b, c, d)
1246 # define CSAVS(b, c, d) strsave(CGETS(b, c, d))
1247 #endif /* WINNT_NATIVE */
1248
1249 #if defined(FILEC)
1250 extern int    filec;
1251 #endif /* FILEC */
1252
1253 #include "sh.decls.h"
1254 /*
1255  * Since on some machines characters are unsigned, and the signed
1256  * keyword is not universally implemented, we treat all characters
1257  * as unsigned and sign extend them where we need.
1258  */
1259 #define SIGN_EXTEND_CHAR(a)     (((a) & 0x80) ? ((a) | ~0x7f) : (a))
1260
1261 /*
1262  * explanation for use by the "--help" option
1263  */
1264 #define HELP_STRING "\
1265 -b file         batch mode, read and execute commands from `file' \n\
1266 -c command      run `command' from next argument \n\
1267 -d              load directory stack from `~/.cshdirs' \n\
1268 -Dname[=value]  define environment variable `name' to `value' (DomainOS only) \n\
1269 -e              exit on any error \n\
1270 -f              start faster by ignoring the start-up file \n\
1271 -F              use fork() instead of vfork() when spawning (ConvexOS only) \n\
1272 -i              interactive, even when input is not from a terminal \n\
1273 -l              act as a login shell, must be the only option specified \n\
1274 -m              load the start-up file, whether or not owned by effective user \n\
1275 -n file         no execute mode, just check syntax of the following `file' \n\
1276 -q              accept SIGQUIT for running under a debugger \n\
1277 -s              read commands from standard input \n\
1278 -t              read one line from standard input \n\
1279 -v              echo commands after history substitution \n\
1280 -V              like -v but including commands read from the start-up file \n\
1281 -x              echo commands immediately before execution \n\
1282 -X              like -x but including commands read from the start-up file \n\
1283 --help          print this message and exit \n\
1284 --version       print the version shell variable and exit \n\
1285 \nSee the tcsh(1) manual page for detailed information.\n"
1286
1287 #include "tc.nls.h"
1288
1289 #endif /* _h_sh */