1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.h,v 3.178 2016/09/12 16:33:54 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 #ifdef _MSC_VER
131 #define TCSH_PTRDIFF_T_FMT "I"
132 #else
133 #define TCSH_PTRDIFF_T_FMT "t"
134 #endif
135 /* Elide unused argument warnings */
136 #define USE(a) (void) (a)
137 #define TCSH_IGNORE(a) tcsh_ignore((intptr_t)a)
tcsh_ignore(intptr_t a)138 static __inline void tcsh_ignore(intptr_t a)
139 {
140 USE(a);
141 }
142
143 /*
144 * Return true if the path is absolute
145 */
146 #if defined(WINNT_NATIVE)
147 # define ABSOLUTEP(p) ((p)[0] == '/' || \
148 (Isalpha((p)[0]) && (p)[1] == ':'))
149 #elif defined(__CYGWIN__)
150 # define ABSOLUTEP(p) ((p)[0] == '/' || \
151 (Isalpha((p)[0]) && (p)[1] == ':' && \
152 ((p)[2] == '\0' || (p)[2] == '/')))
153 #else /* !WINNT_NATIVE && !__CYGWIN__ */
154 # define ABSOLUTEP(p) (*(p) == '/')
155 #endif /* WINNT_NATIVE || __CYGWIN__ */
156
157 /*
158 * Fundamental definitions which may vary from system to system.
159 *
160 * BUFSIZE The i/o buffering size; also limits word size
161 * MAILINTVL How often to mailcheck; more often is more expensive
162 */
163 #ifdef BUFSIZE
164 # if BUFSIZE < 4096
165 # undef BUFSIZE
166 # define BUFSIZE 4096 /* buffer size should be no less than this */
167 # endif
168 #else
169 # define BUFSIZE 4096
170 #endif /* BUFSIZE */
171
172 #define FORKSLEEP 10 /* delay loop on non-interactive fork failure */
173 #define MAILINTVL 600 /* 10 minutes */
174
175 #ifndef INBUFSIZE
176 # define INBUFSIZE 2*BUFSIZE /* Num input characters on the command line */
177 #endif /* INBUFSIZE */
178
179
180 /*
181 * What our builtin echo looks like
182 */
183 #define NONE_ECHO 0
184 #define BSD_ECHO 1
185 #define SYSV_ECHO 2
186 #define BOTH_ECHO (BSD_ECHO|SYSV_ECHO)
187
188 #ifndef ECHO_STYLE
189 # if SYSVREL > 0
190 # define ECHO_STYLE SYSV_ECHO
191 # else /* SYSVREL == 0 */
192 # define ECHO_STYLE BSD_ECHO
193 # endif /* SYSVREL */
194 #endif /* ECHO_STYLE */
195
196 /* values for noclobber */
197 #define NOCLOBBER_DEFAULT 1
198 #define NOCLOBBER_NOTEMPTY 2
199 #define NOCLOBBER_ASK 4
200
201 /*
202 * The shell moves std in/out/diag and the old std input away from units
203 * 0, 1, and 2 so that it is easy to set up these standards for invoked
204 * commands.
205 */
206 #define FSAFE 5 /* We keep the first 5 descriptors untouched */
207 #define FSHTTY 15 /* /dev/tty when manip pgrps */
208 #define FSHIN 16 /* Preferred desc for shell input */
209 #define FSHOUT 17 /* ... shell output */
210 #define FSHDIAG 18 /* ... shell diagnostics */
211 #define FOLDSTD 19 /* ... old std input */
212
213 #ifdef PROF
214 #define xexit(n) done(n)
215 #endif
216
217 #ifdef cray
218 # define word word_t /* sys/types.h defines word.. bad move! */
219 #endif
220
221 #include <sys/types.h>
222
223 #ifdef cray
224 # undef word
225 #endif
226
227 /*
228 * Path separator in environment variables
229 */
230 #ifndef PATHSEP
231 # if defined(__EMX__) || defined(WINNT_NATIVE)
232 # define PATHSEP ';'
233 # else /* unix */
234 # define PATHSEP ':'
235 # endif /* __EMX__ || WINNT_NATIVE */
236 #endif /* !PATHSEP */
237
238 #if defined(__HP_CXD_SPP) && !defined(__hpux)
239 # include <sys/cnx_stat.h>
240 # define stat stat64
241 # define fstat fstat64
242 # define lstat lstat64
243 #endif /* __HP_CXD_SPP && !__hpux */
244
245 #ifdef HAVE_LONG_LONG
246 typedef long long tcsh_number_t;
247 #else
248 typedef long tcsh_number_t;
249 #endif
250 /*
251 * This macro compares the st_dev field of struct stat. On aix on ibmESA
252 * st_dev is a structure, so comparison does not work.
253 */
254 #ifndef DEV_DEV_COMPARE
255 # define DEV_DEV_COMPARE(x,y) ((x) == (y))
256 #endif /* DEV_DEV_COMPARE */
257
258 #ifdef _SEQUENT_
259 # include <sys/procstats.h>
260 #endif /* _SEQUENT_ */
261 #if (defined(POSIX) || SYSVREL > 0) && !defined(WINNT_NATIVE)
262 # include <sys/times.h>
263 #endif /* (POSIX || SYSVREL > 0) && !WINNT_NATIVE */
264
265 #ifdef NLS
266 # include <locale.h>
267 #endif /* NLS */
268
269 #if !defined(_MINIX) && !defined(_VMS_POSIX) && !defined(WINNT_NATIVE) && !defined(__MVS__)
270 # include <sys/param.h>
271 #endif /* !_MINIX && !_VMS_POSIX && !WINNT_NATIVE && !__MVS__ */
272 #include <sys/stat.h>
273
274 #if defined(BSDTIMES) || defined(BSDLIMIT)
275 # include <sys/time.h>
276 # if SYSVREL>3 && !defined(SCO) && !defined(sgi) && !defined(SNI) && !defined(sun) && !(defined(__alpha) && defined(__osf__)) && !defined(_SX) && !defined(__MVS__)
277 # include "/usr/ucbinclude/sys/resource.h"
278 # else
279 # ifdef convex
280 # define sysrusage cvxrusage
281 # include <sys/sysinfo.h>
282 # else
283 # define sysrusage rusage
284 # include <sys/resource.h>
285 # endif /* convex */
286 # endif /* SYSVREL>3 */
287 #endif /* BSDTIMES */
288
289 #ifndef WINNT_NATIVE
290 # ifndef POSIX
291 # ifdef TERMIO
292 # include <termio.h>
293 # else /* SGTTY */
294 # include <sgtty.h>
295 # endif /* TERMIO */
296 # else /* POSIX */
297 # ifndef _UWIN
298 # include <termios.h>
299 # else
300 # include <termio.h>
301 # endif /* _UWIN */
302 # if SYSVREL > 3 || defined(__linux__)
303 # undef TIOCGLTC /* we don't need those, since POSIX has them */
304 # undef TIOCSLTC
305 # undef CSWTCH
306 # define CSWTCH _POSIX_VDISABLE /* So job control works */
307 # endif /* SYSVREL > 3 */
308 # endif /* POSIX */
309 #endif /* WINNT_NATIVE */
310
311 #ifdef sonyrisc
312 # include <sys/ttold.h>
313 #endif /* sonyrisc */
314
315 #if defined(POSIX) && !defined(WINNT_NATIVE)
316 # include <unistd.h>
317
318 /*
319 * the gcc+protoize version of <stdlib.h>
320 * redefines malloc(), so we define the following
321 * to avoid it.
322 */
323 # if defined(SYSMALLOC) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(sgi) || defined(_OSD_POSIX)
324 # define NO_FIX_MALLOC
325 # include <stdlib.h>
326 # else /* glibc */
327 # define _GNU_STDLIB_H
328 # define malloc __malloc
329 # define free __free
330 # define calloc __calloc
331 # define realloc __realloc
332 # include <stdlib.h>
333 # undef malloc
334 # undef free
335 # undef calloc
336 # undef realloc
337 # endif /* glibc || sgi */
338 #endif /* POSIX && !WINNT_NATIVE */
339 #include <limits.h>
340
341 #if SYSVREL > 0 || defined(_IBMR2) || defined(_MINIX) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)
342 # if !defined(pyr) && !defined(stellar)
343 # include <time.h>
344 # ifdef _MINIX
345 # define HZ CLOCKS_PER_SEC
346 # endif /* _MINIX */
347 # endif /* !pyr && !stellar */
348 #endif /* SYSVREL > 0 || _IBMR2 */
349
350 /* In the following ifdef the DECOSF1 has been commented so that later
351 * versions of DECOSF1 will get TIOCGWINSZ. This might break older versions...
352 */
353 #if !((defined(SUNOS4) || defined(_MINIX) /* || defined(DECOSF1) */) && defined(TERMIO))
354 # if !defined(_VMS_POSIX) && !defined(WINNT_NATIVE)
355 # include <sys/ioctl.h>
356 # if SYSVREL > 3 || defined(__linux__)
357 # undef TIOCGLTC /* we don't need those, since POSIX has them */
358 # undef TIOCSLTC
359 # undef CSWTCH
360 # define CSWTCH _POSIX_VDISABLE /* So job control works */
361 # endif /* SYSVREL > 3 */
362 # endif
363 #endif
364
365 #if (defined(__DGUX__) && defined(POSIX)) || defined(DGUX)
366 #undef CSWTCH
367 #define CSWTCH _POSIX_VDISABLE
368 #endif
369
370 #if (!defined(FIOCLEX) && defined(SUNOS4)) || ((SYSVREL == 4) && !defined(_SEQUENT_) && !defined(SCO) && !defined(_SX)) && !defined(__MVS__)
371 # include <sys/filio.h>
372 #endif /* (!FIOCLEX && SUNOS4) || (SYSVREL == 4 && !_SEQUENT_ && !SCO && !_SX ) */
373
374 #if !defined(_MINIX) && !defined(supermax) && !defined(WINNT_NATIVE) && !defined(IRIS4D)
375 # include <sys/file.h>
376 #endif /* !_MINIX && !supermax && !WINNT_NATIVE && !defined(IRIS4D) */
377
378 #if !defined(O_RDONLY) || !defined(O_NDELAY)
379 # include <fcntl.h>
380 #endif
381
382 #include <errno.h>
383
384 #include <setjmp.h>
385
386 #include <stdarg.h>
387
388 #ifdef HAVE_DIRENT_H
389 # include <dirent.h>
390 #else
391 # ifdef HAVE_NDIR_H
392 # include <ndir.h>
393 # else
394 # include <sys/dir.h>
395 # endif
396 # define dirent direct
397 #endif /* HAVE_DIRENT_H */
398 #ifndef HAVE_STRUCT_DIRENT_D_INO
399 # define d_ino d_fileno
400 #endif
401 #if defined(hpux) || defined(sgi) || defined(OREO)
402 # include <stdio.h> /* So the fgetpwent() prototypes work */
403 #endif /* hpux || sgi || OREO */
404 #ifndef WINNT_NATIVE
405 #include <pwd.h>
406 #include <grp.h>
407 #endif /* WINNT_NATIVE */
408 #ifdef HAVE_SHADOW_H
409 # include <shadow.h>
410 #endif /* HAVE_SHADOW_H */
411 #ifdef HAVE_AUTH_H
412 # include <auth.h>
413 #endif /* HAVE_AUTH_H */
414 #if defined(BSD) && !defined(POSIX)
415 # include <strings.h>
416 # define strchr(a, b) index(a, b)
417 # define strrchr(a, b) rindex(a, b)
418 #else
419 # include <string.h>
420 #endif /* BSD */
421
422 /*
423 * IRIX-5.0 has <sys/cdefs.h>, but most system include files do not
424 * include it yet, so we include it here
425 */
426 #if defined(sgi) && SYSVREL > 3
427 # include <sys/cdefs.h>
428 #endif /* sgi && SYSVREL > 3 */
429
430 #ifdef REMOTEHOST
431 # ifdef ISC
432 # undef MAXHOSTNAMELEN /* Busted headers? */
433 # endif
434
435 # include <netinet/in.h>
436 # include <arpa/inet.h>
437 # include <sys/socket.h>
438 # if (defined(_SS_SIZE) || defined(_SS_MAXSIZE)) && defined(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY)
439 # if !defined(__APPLE__) /* Damnit, where is getnameinfo() folks? */
440 # if !defined(sgi)
441 # define INET6
442 # endif /* sgi */
443 # endif /* __APPLE__ */
444 # endif
445 # include <sys/uio.h> /* For struct iovec */
446 #endif /* REMOTEHOST */
447
448 #ifdef PURIFY
449 /* exit normally, allowing purify to trace leaks */
450 # define _exit exit
451 #endif /* !PURIFY */
452
453 /*
454 * ASCII vs. EBCDIC
455 */
456 #if 'Z' - 'A' == 25
457 # ifndef IS_ASCII
458 # define IS_ASCII
459 # endif
460 #endif
461
462 #include "sh.types.h"
463
464 #if !HAVE_DECL_GETPGRP
465 # ifndef GETPGRP_VOID
466 extern pid_t getpgrp (int);
467 # else
468 extern pid_t getpgrp (void);
469 # endif
470 #endif
471
472 #ifndef lint
473 typedef ptr_t memalign_t;
474 #else
475 typedef union {
476 char am_char, *am_char_p;
477 short am_short, *am_short_p;
478 int am_int, *am_int_p;
479 long am_long, *am_long_p;
480 float am_float, *am_float_p;
481 double am_double, *am_double_p;
482 } *memalign_t;
483
484 # define malloc lint_malloc
485 # define free lint_free
486 # define realloc lint_realloc
487 # define calloc lint_calloc
488 #endif
489
490 #ifdef SYSMALLOC
491 # define xmalloc(i) smalloc(i)
492 # define xrealloc(p, i) srealloc(p, i)
493 # define xcalloc(n, s) scalloc(n, s)
494 # define xfree sfree
495 #else
496 # define xmalloc(i) malloc(i)
497 # define xrealloc(p, i) realloc(p, i)
498 # define xcalloc(n, s) calloc(n, s)
499 # define xfree free
500 #endif /* SYSMALLOC */
501 #include "sh.char.h"
502 #include "sh.err.h"
503 #include "sh.dir.h"
504 #include "sh.proc.h"
505
506 #include "pathnames.h"
507
508
509 /*
510 * C shell
511 *
512 * Bill Joy, UC Berkeley
513 * October, 1978; May 1980
514 *
515 * Jim Kulp, IIASA, Laxenburg Austria
516 * April, 1980
517 */
518
519 #ifdef HESIOD
520 # include <hesiod.h>
521 #endif /* HESIOD */
522
523 #ifdef REMOTEHOST
524 # include <netdb.h>
525 #endif /* REMOTEHOST */
526
527 #ifndef MAXHOSTNAMELEN
528 # ifdef HOST_NAME_MAX
529 # define MAXHOSTNAMELEN (HOST_NAME_MAX + 1)
530 # elif defined(SCO) && (SYSVREL > 3)
531 # include <sys/socket.h>
532 # else
533 # define MAXHOSTNAMELEN 256
534 # endif
535 #endif /* MAXHOSTNAMELEN */
536
537
538
539 #define eq(a, b) (Strcmp(a, b) == 0)
540
541 /* globone() flags */
542 #define G_ERROR 0 /* default action: error if multiple words */
543 #define G_IGNORE 1 /* ignore the rest of the words */
544 #define G_APPEND 2 /* make a sentence by cat'ing the words */
545
546 /*
547 * Global flags
548 */
549 EXTERN int chkstop IZERO; /* Warned of stopped jobs... allow exit */
550
551 #if (defined(FIOCLEX) && defined(FIONCLEX)) || defined(F_SETFD)
552 # define CLOSE_ON_EXEC
553 #else
554 EXTERN int didcch IZERO; /* Have closed unused fd's for child */
555 #endif /* (FIOCLEX && FIONCLEX) || F_SETFD */
556
557 EXTERN int didfds IZERO; /* Have setup i/o fd's for child */
558 EXTERN int doneinp IZERO; /* EOF indicator after reset from readc */
559 EXTERN int exiterr IZERO; /* Exit if error or non-zero exit status */
560 EXTERN int child IZERO; /* Child shell ... errors cause exit */
561 EXTERN int haderr IZERO; /* Reset was because of an error */
562 EXTERN int intty IZERO; /* Input is a tty */
563 EXTERN int intact IZERO; /* We are interactive... therefore prompt */
564 EXTERN int justpr IZERO; /* Just print because of :p hist mod */
565 EXTERN int loginsh IZERO; /* We are a loginsh -> .login/.logout */
566 EXTERN int neednote IZERO; /* Need to pnotify() */
567 EXTERN int noexec IZERO; /* Don't execute, just syntax check */
568 EXTERN int pjobs IZERO; /* want to print jobs if interrupted */
569 EXTERN int setintr IZERO; /* Set interrupts on/off -> Wait intr... */
570 EXTERN int handle_interrupt IZERO;/* Are we currently handling an interrupt? */
571 EXTERN int havhash IZERO; /* path hashing is available */
572 EXTERN int editing IZERO; /* doing filename expansion and line editing */
573 EXTERN int noediting IZERO; /* initial $term defaulted to noedit */
574 EXTERN int bslash_quote IZERO;/* PWP: tcsh-style quoting? (in sh.c) */
575 EXTERN int anyerror IZERO; /* propagate errors from pipelines/backq */
576 EXTERN int compat_expr IZERO;/* csh-style expressions? */
577 EXTERN int isoutatty IZERO; /* is SHOUT a tty */
578 EXTERN int isdiagatty IZERO;/* is SHDIAG a tty */
579 EXTERN int is1atty IZERO; /* is file descriptor 1 a tty (didfds mode) */
580 EXTERN int is2atty IZERO; /* is file descriptor 2 a tty (didfds mode) */
581 EXTERN int arun IZERO; /* Currently running multi-line-aliases */
582 EXTERN int implicit_cd IZERO;/* implicit cd enabled?(1=enabled,2=verbose) */
583 EXTERN int cdtohome IZERO; /* cd without args goes home */
584 EXTERN int inheredoc IZERO; /* Currently parsing a heredoc */
585 EXTERN int no_clobber IZERO; /* no clobber enabled? 1=yes 2=notempty, 4=ask*/
586 /* We received a window change event */
587 EXTERN volatile sig_atomic_t windowchg IZERO;
588 #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE)
589 EXTERN int dspmbyte_ls;
590 #endif
591
592 /*
593 * Global i/o info
594 */
595 EXTERN Char *arginp IZERO; /* Argument input for sh -c and internal `xx` */
596 EXTERN int onelflg IZERO; /* 2 -> need line for -t, 1 -> exit on read */
597 extern Char *ffile; /* Name of shell file for $0 */
598 extern int dolzero; /* if $?0 should return true... */
599
600 extern char *seterr; /* Error message from scanner/parser */
601 #ifndef errno
602 extern int errno; /* Error from C library routines */
603 #endif
604 extern int exitset;
605 /* Temp name for << shell files in /tmp, for xfree() */
606 EXTERN Char *shtemp IZERO;
607
608 #ifdef BSDTIMES
609 EXTERN struct timeval time0; /* Time at which the shell started */
610 EXTERN struct sysrusage ru0;
611 #else
612 # ifdef _SEQUENT_
613 EXTERN timeval_t time0; /* time at which shell started */
614 EXTERN struct process_stats ru0;
615 # else /* _SEQUENT_ */
616 # ifndef POSIX
617 EXTERN time_t time0; /* time at which shell started */
618 # else /* POSIX */
619 EXTERN clock_t time0; /* time at which shell started */
620 EXTERN clock_t clk_tck;
621 # endif /* POSIX */
622 EXTERN struct tms shtimes; /* shell and child times for process timing */
623 # endif /* _SEQUENT_ */
624 EXTERN time_t seconds0;
625 #endif /* BSDTIMES */
626
627 #ifndef HZ
628 # define HZ 100 /* for division into seconds */
629 #endif
630
631 /*
632 * Miscellany
633 */
634 EXTERN pid_t mainpid; /* pid of the main shell ($$) */
635 EXTERN Char *doldol; /* Character pid for $$ */
636 EXTERN pid_t backpid; /* pid of the last background job */
637
638
639 /*
640 * Ideally these should be uid_t, gid_t, pid_t. I cannot do that right now
641 * cause pid's could be unsigned and that would break our -1 flag, and
642 * uid_t and gid_t are not defined in all the systems so I would have to
643 * make special cases for them. In the future...
644 */
645 EXTERN uid_t uid, euid; /* Invokers real and effective */
646 EXTERN gid_t gid, egid; /* User and group ids */
647 EXTERN pid_t opgrp, /* Initial pgrp and tty pgrp */
648 shpgrp, /* Pgrp of shell */
649 tpgrp; /* Terminal process group */
650 /* If tpgrp is -1, leave tty alone! */
651
652 EXTERN Char *Prompt; /* The actual printed prompt or NULL */
653 EXTERN Char *RPrompt; /* Right-hand side prompt or NULL */
654
655 /*
656 * To be able to redirect i/o for builtins easily, the shell moves the i/o
657 * descriptors it uses away from 0,1,2.
658 * Ideally these should be in units which are closed across exec's
659 * (this saves work) but for version 6, this is not usually possible.
660 * The desired initial values for these descriptors are defined in
661 * sh.local.h.
662 */
663 EXTERN int SHIN IZERO; /* Current shell input (script) */
664 EXTERN int SHOUT IZERO; /* Shell output */
665 EXTERN int SHDIAG IZERO; /* Diagnostic output... shell errs go here */
666 EXTERN int OLDSTD IZERO; /* Old standard input (def for cmds) */
667
668
669 #if (SYSVREL == 4 && defined(_UTS)) || defined(__linux__)
670 /*
671 * From: fadden@uts.amdahl.com (Andy McFadden)
672 * we need sigsetjmp for UTS4, but not UTS2.1
673 */
674 # define SIGSETJMP
675 #endif
676
677 /*
678 * Error control
679 *
680 * Errors in scanning and parsing set up an error message to be printed
681 * at the end and complete. Other errors always cause a reset.
682 * Because of source commands and .cshrc we need nested error catches.
683 */
684
685 #ifdef SIGSETJMP
686 typedef struct { sigjmp_buf j; } jmp_buf_t;
687 # define setexit() sigsetjmp(reslab.j, 1)
688 # define _reset() siglongjmp(reslab.j, 1)
689 #else
690 typedef struct { jmp_buf j; } jmp_buf_t;
691 # define setexit() setjmp(reslab.j)
692 # define _reset() longjmp(reslab.j, 1)
693 #endif
694
695 #define getexit(a) (void) ((a) = reslab)
696 #define resexit(a) (void) (reslab = (a))
697
698 #define cpybin(a, b) (void) ((a) = (b))
699
700 extern jmp_buf_t reslab;
701
702 EXTERN Char *gointr; /* Label for an onintr transfer */
703
704 extern struct sigaction parintr; /* Parents interrupt catch */
705 extern struct sigaction parterm; /* Parents terminate catch */
706
707 /*
708 * Lexical definitions.
709 *
710 * All lexical space is allocated dynamically.
711 * The eighth/sixteenth bit of characters is used to prevent recognition,
712 * and eventually stripped.
713 */
714 #define META 0200
715 #define ASCII 0177
716 #ifdef WIDE_STRINGS /* Implies SHORT_STRINGS */
717 /* 31st char bit used for 'ing (not 32nd, we want all values nonnegative) */
718 /*
719 * Notice
720 *
721 * By fix for handling unicode name file, 32nd bit is used.
722 * We need use '&' instead of '> or <' when comparing with INVALID_BYTE etc..
723 * Cast to uChar is not recommended,
724 * becase Char is 4bytes but uChar is 8bytes on I32LP64. */
725 # define QUOTE 0x80000000
726 # define TRIM 0x7FFFFFFF /* Mask to strip quote bit */
727 # define UNDER 0x08000000 /* Underline flag */
728 # define BOLD 0x04000000 /* Bold flag */
729 # define STANDOUT 0x02000000 /* Standout flag */
730 # define LITERAL 0x01000000 /* Literal character flag */
731 # define ATTRIBUTES 0x0F000000 /* The bits used for attributes */
732 # define INVALID_BYTE 0xF0000000 /* Invalid character on input */
733 # ifdef SOLARIS2
734 # define CHAR 0x30FFFFFF /* Mask to mask out the character */
735 # else
736 # define CHAR 0x00FFFFFF /* Mask to mask out the character */
737 # endif
738 #elif defined (SHORT_STRINGS)
739 # define QUOTE ((Char) 0100000)/* 16nth char bit used for 'ing */
740 # define TRIM 0073777 /* Mask to strip quote/lit bit */
741 # define UNDER 0040000 /* Underline flag */
742 # define BOLD 0020000 /* Bold flag */
743 # define STANDOUT 0010000 /* Standout flag */
744 # define LITERAL 0004000 /* Literal character flag */
745 # define ATTRIBUTES 0074000 /* The bits used for attributes */
746 # define INVALID_BYTE 0
747 # define CHAR 0000377 /* Mask to mask out the character */
748 #else
749 # define QUOTE ((Char) 0200) /* Eighth char bit used for 'ing */
750 # define TRIM 0177 /* Mask to strip quote bit */
751 # define UNDER 0000000 /* No extra bits to do both */
752 # define BOLD 0000000 /* Bold flag */
753 # define STANDOUT META /* Standout flag */
754 # define LITERAL 0000000 /* Literal character flag */
755 # define ATTRIBUTES 0200 /* The bits used for attributes */
756 # define INVALID_BYTE 0
757 # define CHAR 0000177 /* Mask to mask out the character */
758 #endif
759 #define CHAR_DBWIDTH (LITERAL|(LITERAL-1))
760
761 # define MAX_UTF32 0x7FFFFFFF /* max UTF32 is U+7FFFFFFF */
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 #ifndef MAXPATHLEN
1031 # ifdef PATH_MAX
1032 # define MAXPATHLEN PATH_MAX
1033 # else
1034 # define MAXPATHLEN 2048
1035 # endif
1036 #endif /* MAXPATHLEN */
1037
1038 #ifndef HAVENOLIMIT
1039 /*
1040 * resource limits
1041 */
1042 extern struct limits {
1043 int limconst;
1044 const char *limname;
1045 int limdiv;
1046 const char *limscale;
1047 } limits[];
1048 #endif /* !HAVENOLIMIT */
1049
1050 /*
1051 * History list
1052 *
1053 * Each history list entry contains an embedded wordlist
1054 * from the scanner, a number for the event, and a reference count
1055 * to aid in discarding old entries.
1056 *
1057 * Essentially "invisible" entries are put on the history list
1058 * when history substitution includes modifiers, and thrown away
1059 * at the next discarding since their event numbers are very negative.
1060 */
1061 EXTERN struct Hist {
1062 struct wordent Hlex;
1063 int Hnum; /* eventno when inserted into history list */
1064 int Href;
1065 time_t Htime;
1066 Char *histline;
1067 struct Hist *Hnext, *Hprev; /* doubly linked list */
1068 unsigned Hhash; /* hash value of command line */
1069 } Histlist IZERO_STRUCT;
1070
1071 extern struct wordent paraml; /* Current lexical word list */
1072 EXTERN int eventno; /* Next events number */
1073 EXTERN int lastev; /* Last event reference (default) */
1074
1075 EXTERN Char HIST; /* history invocation character */
1076 EXTERN Char HISTSUB; /* auto-substitute character */
1077 EXTERN Char PRCH; /* Prompt symbol for regular users */
1078 EXTERN Char PRCHROOT; /* Prompt symbol for root */
1079
1080 /*
1081 * For operating systems with single case filenames (OS/2)
1082 */
1083 #ifdef CASE_INSENSITIVE
1084 # ifdef WIDE_STRINGS
1085 # define samecase(x) (towlower(x))
1086 # else
1087 # define samecase(x) (isupper((unsigned char)(x)) ? \
1088 tolower((unsigned char)(x)) : (x))
1089 # endif
1090 #else
1091 # define samecase(x) (x)
1092 #endif /* CASE_INSENSITIVE */
1093
1094 /*
1095 * strings.h:
1096 */
1097 #ifndef SHORT_STRINGS
1098 #define Strchr(a, b) strchr(a, b)
1099 #define Strrchr(a, b) strrchr(a, b)
1100 #define Strcat(a, b) strcat(a, b)
1101 #define Strncat(a, b, c) strncat(a, b, c)
1102 #define Strcpy(a, b) strcpy(a, b)
1103 #define Strncpy(a, b, c) strncpy(a, b, c)
1104 #define Strlen(a) strlen(a)
1105 #define Strcmp(a, b) strcmp(a, b)
1106 #define Strncmp(a, b, c) strncmp(a, b, c)
1107 #define Strcasecmp(a, b) strcasecmp(a, b)
1108
1109 #define Strspl(a, b) strspl(a, b)
1110 #define Strnsave(a, b) strnsave(a, b)
1111 #define Strsave(a) strsave(a)
1112 #define Strend(a) strend(a)
1113 #define Strstr(a, b) strstr(a, b)
1114
1115 #define str2short(a) (a)
1116 #define blk2short(a) saveblk(a)
1117 #define short2blk(a) saveblk(a)
1118 #define short2str(a) caching_strip(a)
1119 #else
1120 #if defined(WIDE_STRINGS) && !defined(UTF16_STRINGS)
1121 #define Strchr(a, b) wcschr(a, b)
1122 #define Strrchr(a, b) wcsrchr(a, b)
1123 #define Strcat(a, b) wcscat(a, b)
1124 #define Strncat(a, b, c) wcsncat(a, b, c)
1125 #define Strcpy(a, b) wcscpy(a, b)
1126 #define Strncpy(a, b, c) wcsncpy(a, b, c)
1127 #define Strlen(a) wcslen(a)
1128 #define Strcmp(a, b) wcscmp(a, b)
1129 #define Strncmp(a, b, c) wcsncmp(a, b, c)
1130 #else
1131 #define Strchr(a, b) s_strchr(a, b)
1132 #define Strrchr(a, b) s_strrchr(a, b)
1133 #define Strcat(a, b) s_strcat(a, b)
1134 #define Strncat(a, b, c) s_strncat(a, b, c)
1135 #define Strcpy(a, b) s_strcpy(a, b)
1136 #define Strncpy(a, b, c) s_strncpy(a, b, c)
1137 #define Strlen(a) s_strlen(a)
1138 #define Strcmp(a, b) s_strcmp(a, b)
1139 #define Strncmp(a, b, c) s_strncmp(a, b, c)
1140 #endif
1141 #define Strcasecmp(a, b) s_strcasecmp(a, b)
1142
1143 #define Strspl(a, b) s_strspl(a, b)
1144 #define Strnsave(a, b) s_strnsave(a, b)
1145 #define Strsave(a) s_strsave(a)
1146 #define Strend(a) s_strend(a)
1147 #define Strstr(a, b) s_strstr(a, b)
1148 #endif
1149
1150 /*
1151 * setname is a macro to save space (see sh.err.c)
1152 */
1153 EXTERN const char *bname;
1154
1155 #define setname(a) (bname = (a))
1156
1157 #ifdef VFORK
1158 EXTERN Char *Vsav;
1159 EXTERN Char *Vdp;
1160 EXTERN Char *Vexpath;
1161 EXTERN char **Vt;
1162 #endif /* VFORK */
1163
1164 EXTERN Char **evalvec;
1165 EXTERN Char *evalp;
1166
1167 extern struct mesg {
1168 const char *iname; /* name from /usr/include */
1169 const char *pname; /* print name */
1170 } mesg[];
1171
1172 /* word_chars is set by default to WORD_CHARS (or WORD_CHARS_VI) but can
1173 be overridden by the wordchars variable--if unset, reverts to
1174 WORD_CHARS (or WORD_CHARS_VI) */
1175
1176 EXTERN Char *word_chars;
1177
1178 #define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */
1179 #define WORD_CHARS_VI "_" /* default chars besides alnums in words */
1180
1181 EXTERN Char *STR_SHELLPATH;
1182
1183 #ifdef _PATH_BSHELL
1184 EXTERN Char *STR_BSHELL;
1185 #endif
1186 EXTERN Char *STR_WORD_CHARS;
1187 EXTERN Char *STR_WORD_CHARS_VI;
1188 EXTERN Char **STR_environ IZERO;
1189
1190 extern int dont_free; /* Tell free that we are in danger if we free */
1191
1192 extern Char *INVPTR;
1193 extern Char **INVPPTR;
1194
1195 extern char *progname;
1196 extern int tcsh;
1197 extern int xlate_cr;
1198 extern int output_raw;
1199 extern int lbuffed;
1200 extern time_t Htime;
1201 extern int numeof;
1202 extern int insource;
1203 extern char linbuf[];
1204 extern char *linp;
1205 extern int nsig;
1206 #ifdef VFORK
1207 extern int use_fork;
1208 #endif
1209 extern int tellwhat;
1210 extern int NoNLSRebind;
1211 #if !HAVE_DECL_ENVIRON
1212 extern char **environ;
1213 #endif
1214
1215 #include "tc.h"
1216
1217 #ifndef WINNT_NATIVE
1218 # ifdef NLS_CATALOGS
1219 # ifdef HAVE_FEATURES_H
1220 # include <features.h>
1221 # endif
1222 # ifdef HAVE_NL_LANGINFO
1223 # include <langinfo.h>
1224 # endif
1225 # ifdef __uxps__
1226 # define gettxt gettxt_ds
1227 # endif
1228 # include <nl_types.h>
1229 # ifdef __uxps__
1230 # undef gettxt
1231 # endif
1232 EXTERN nl_catd catd;
1233 # if defined(HAVE_ICONV) && defined(HAVE_NL_LANGINFO)
1234 # define CGETS(b, c, d) iconv_catgets(catd, b, c, d)
1235 # else
1236 # define CGETS(b, c, d) xcatgets(catd, b, c, d)
1237 # endif
1238 # define CSAVS(b, c, d) strsave(CGETS(b, c, d))
1239 # else
1240 # define CGETS(b, c, d) d
1241 # define CSAVS(b, c, d) d
1242 # endif
1243 #else /* WINNT_NATIVE */
1244 # define CGETS(b, c, d) nt_cgets( b, c, d)
1245 # define CSAVS(b, c, d) strsave(CGETS(b, c, d))
1246 #endif /* WINNT_NATIVE */
1247
1248 #if defined(FILEC)
1249 extern int filec;
1250 #endif /* FILEC */
1251
1252 #include "sh.decls.h"
1253 /*
1254 * Since on some machines characters are unsigned, and the signed
1255 * keyword is not universally implemented, we treat all characters
1256 * as unsigned and sign extend them where we need.
1257 */
1258 #define SIGN_EXTEND_CHAR(a) (((a) & 0x80) ? ((a) | ~0x7f) : (a))
1259
1260 /*
1261 * explanation for use by the "--help" option
1262 */
1263 #define HELP_STRING "\
1264 -b file batch mode, read and execute commands from `file' \n\
1265 -c command run `command' from next argument \n\
1266 -d load directory stack from `~/.cshdirs' \n\
1267 -Dname[=value] define environment variable `name' to `value' (DomainOS only) \n\
1268 -e exit on any error \n\
1269 -f start faster by ignoring the start-up file \n\
1270 -F use fork() instead of vfork() when spawning (ConvexOS only) \n\
1271 -i interactive, even when input is not from a terminal \n\
1272 -l act as a login shell, must be the only option specified \n\
1273 -m load the start-up file, whether or not owned by effective user \n\
1274 -n file no execute mode, just check syntax of the following `file' \n\
1275 -q accept SIGQUIT for running under a debugger \n\
1276 -s read commands from standard input \n\
1277 -t read one line from standard input \n\
1278 -v echo commands after history substitution \n\
1279 -V like -v but including commands read from the start-up file \n\
1280 -x echo commands immediately before execution \n\
1281 -X like -x but including commands read from the start-up file \n\
1282 --help print this message and exit \n\
1283 --version print the version shell variable and exit \n\
1284 \nSee the tcsh(1) manual page for detailed information.\n"
1285
1286 #include "tc.nls.h"
1287
1288 #endif /* _h_sh */
1289