2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these librararies and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
23 /* $XConsortium: init.c /main/4 1995/11/17 15:16:52 rswiston $ */
24 /***************************************************************
26 * AT&T - PROPRIETARY *
28 * THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF *
29 * AT&T BELL LABORATORIES *
30 * AND IS NOT TO BE DISCLOSED OR USED EXCEPT IN *
31 * ACCORDANCE WITH APPLICABLE AGREEMENTS *
33 * Copyright (c) 1995 AT&T Corp. *
34 * Unpublished & Not for Publication *
35 * All Rights Reserved *
37 * The copyright notice above does not evidence any *
38 * actual or intended publication of such source code *
40 * This software was created by the *
41 * Advanced Software Technology Department *
42 * AT&T Bell Laboratories *
44 * For further information contact *
45 * {research,attmail}!dgk *
47 ***************************************************************/
49 /* : : generated by proto : : */
51 #if !defined(__PROTO__)
52 #if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
53 #if defined(__cplusplus)
54 #define __MANGLE__ "C"
59 #define __PROTO__(x) x
61 #define __PARAM__(n,o) n
62 #if !defined(__STDC__) && !defined(__cplusplus)
63 #if !defined(c_plusplus)
74 #define __PROTO__(x) ()
75 #define __OTORP__(x) x
76 #define __PARAM__(n,o) o
84 #if defined(__cplusplus) || defined(c_plusplus)
85 #define __VARARG__ ...
89 #if defined(__STDARG__)
90 #define __VA_START__(p,a) va_start(p,a)
92 #define __VA_START__(p,a) va_start(p)
98 #include "variables.h"
104 #include "FEATURE/time"
105 #include "FEATURE/dynamic"
106 #include "lexstates.h"
107 #include "FEATURE/locale"
108 #include "national.h"
110 #if _hdr_wchar && _lib_wctype && _lib_iswctype
113 # define isalpha(x) iswalpha(x)
115 # define isblank(x) iswblank(x)
122 iswblank __PARAM__((wint_t wc), (wc)) __OTORP__(wint_t wc;){
123 static int initialized;
129 wt = wctype("blank");
131 return(iswctype(wc, wt));
137 # define isblank(x) ((x)==' '||(x)=='\t')
144 # define LC_MESSAGES LC_ALL
145 # endif /* LC_MESSAGES */
146 #endif /* _hdr_locale */
148 #define RANDMASK 0x7fff
153 extern __MANGLE__ char **environ;
155 extern __MANGLE__ int Mt_certify;
158 static void env_init __PROTO__((void));
159 static void nv_init __PROTO__((void));
160 static Hashtab_t *inittree __PROTO__((const struct shtable2*));
162 static const char rsh_pattern[] = "@(rk|kr|r)sh";
163 static int rand_shift;
164 static Namval_t *ifsnp;
168 * Invalidate all path name bindings
170 static void rehash __PARAM__((register Namval_t *np), (np)) __OTORP__(register Namval_t *np;){
171 nv_onattr(np,NV_NOALIAS);
175 * out of memory routine for stak routines
177 static char *nospace __PARAM__((int unused), (unused)) __OTORP__(int unused;){
179 error(ERROR_exit(3),e_nospace);
183 #ifdef SHOPT_MULTIBYTE
185 /* Trap for CSWIDTH variable */
186 static void put_cswidth __PARAM__((Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(Namval_t* np;const char *val;int flags;Namfun_t *fp;){
188 register char *name = nv_name(np);
189 if(ed_setwidth(val?val:"") && !(flags&NV_IMPORT))
190 error(ERROR_exit(1),e_format,nv_name(np));
191 nv_putv(np, val, flags, fp);
193 #endif /* SHOPT_MULTIBYTE */
195 /* Trap for VISUAL and EDITOR variables */
196 static void put_ed __PARAM__((register Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(register Namval_t* np;const char *val;int flags;Namfun_t *fp;){
197 register const char *cp, *name=nv_name(np);
198 if(*name=='E' && nv_getval(nv_scoped(VISINOD)))
200 sh_offoption(SH_VI|SH_EMACS|SH_GMACS);
201 if(!(cp=val) && (*name=='E' || !(cp=nv_getval(nv_scoped(EDITNOD)))))
203 /* turn on vi or emacs option if editor name is either*/
204 cp = path_basename(cp);
205 if(strmatch(cp,"*vi"))
207 if(strmatch(cp,"*macs"))
210 sh_onoption(SH_GMACS);
212 sh_onoption(SH_EMACS);
215 nv_putv(np, val, flags, fp);
218 /* Trap for OPTINDEX */
219 static void put_optindex __PARAM__((Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(Namval_t* np;const char *val;int flags;Namfun_t *fp;){
220 sh.st.opterror = sh.st.optchar = 0;
221 nv_putv(np, val, flags, fp);
224 /* Trap for restricted variables PATH, SHELL, ENV */
225 static void put_restricted __PARAM__((register Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(register Namval_t* np;const char *val;int flags;Namfun_t *fp;){
226 if(!(flags&NV_RDONLY) && sh_isoption(SH_RESTRICTED))
227 error(ERROR_exit(1),e_restricted,nv_name(np));
228 if(nv_name(np)==nv_name(PATHNOD))
231 nv_scan(sh.track_tree,rehash,NV_TAGGED,NV_TAGGED);
233 nv_putv(np, val, flags, fp);
237 /* Trap for SYSTYPE variable */
238 static void put_systype __PARAM__((Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(Namval_t* np;const char *val;int flags;Namfun_t *fp;){
240 nv_scan(sh.track_tree,rehash,NV_TAGGED,NV_TAGGED);
241 nv_putv(np, val, flags, fp);
248 * The following struct is based on an alphanumerically sorted list of
249 * all ksh-generated messages which might be displayed, and
250 * must be looked up in a message catalog. The point of this is to
251 * translate from the AT&T/UI style of string-based message indexing
252 * to the X/OPEN style of message number lookup. The following struct
253 * allows us to do a binary search on the strings to find the associated
254 * set number and message ID. While we could have used the string index
255 * as the message number, that would cause headaches if/when we
256 * need to add more messages, as all following messages would have to
265 static MsgStr allmsgs[] = {
268 {" [-n] [arg...]", 25, 4},
269 {" [arg...]", 25, 5},
270 {" [dir] [list]", 25, 6},
271 {" [job...]", 25, 7},
273 {" [name [pathname] ]", 25, 9},
275 {" [top] [base]", 25, 11},
276 {" expr...", 25, 12},
277 {" format [arg...]", 25, 13},
278 {" is a function", 25, 14},
279 {" is a keyword", 25, 15},
280 {" is a shell builtin", 25, 16},
281 {" is an exported function", 25, 17},
282 {" is an undefined function", 25, 18},
283 {" name [arg...]", 25, 19},
284 {":a:[name] optstring name [args...]", 25, 20},
285 {" seconds", 25, 21},
286 {"${HOME:-.}/.profile", 25, 23},
287 {"%c: invalid character in expression - %s", 25, 24},
288 {"%c: unknown format specifier", 25, 25},
289 {"%d-%d: invalid range", 25, 26},
290 {"%d: invalid binary script version", 25, 27},
291 {"%s is an alias for ", 25, 28},
292 {"%s is an exported alias for ", 25, 29},
293 {"%s missing", 25, 30},
294 {"%s unknown base", 25, 31},
295 {"%s: ':' expected for '?' operator", 25, 32},
296 {"%s: Ambiguous", 25, 33},
297 {"%s: Arguments must be %job or process ids", 25, 34},
298 {"%s: alias not found\n", 25, 35},
299 {"%s: arithmetic syntax error", 25, 36},
300 {"%s: assignment requires lvalue", 25, 37},
301 {"%s: bad file unit number", 25, 38},
302 {"%s: bad format", 25, 39},
303 {"%s: bad number", 25, 40},
304 {"%s: bad option(s)", 25, 41},
305 {"%s: bad substitution", 25, 42},
306 {"%s: bad trap", 25, 43},
307 {"%s: cannot create", 25, 44},
308 {"%s: cannot execute", 25, 45},
309 {"%s: cannot open", 25, 46},
310 {"%s: divide by zero", 25, 47},
311 {"%s: domain exception", 25, 48},
312 {"%s: fails %s", 25, 49},
313 {"%s: file already exists", 25, 50},
314 {"%s: illegal function name", 25, 51},
315 {"%s: invalid alias name", 25, 52},
316 {"%s: invalid discipline function", 25, 53},
317 {"%s: invalid export name", 25, 54},
318 {"%s: invalid function name", 25, 55},
319 {"%s: invalid name", 25, 56},
320 {"%s: invalid regular expression", 25, 57},
321 {"%s: invalid self reference", 25, 58},
322 {"%s: invalid use of :", 25, 59},
323 {"%s: invalid variable name", 25, 60},
324 {"%s: is not an identifier", 25, 61},
325 {"%s: is read only", 25, 62},
326 {"%s: label not implemented", 25, 63},
327 {"%s: limit exceeded", 25, 64},
328 {"%s: more tokens expected", 25, 65},
329 {"%s: no parent", 25, 66},
330 {"%s: no reference name", 25, 67},
331 {"%s: not found", 25, 68},
332 {"%s: not implemented", 25, 69},
333 {"%s: operands have incompatible types", 25, 70},
334 {"%s: overflow exception", 25, 71},
335 {"%s: parameter not set", 25, 72},
336 {"%s: parameter null or not set", 25, 73},
337 {"%s: recursion too deep", 25, 74},
338 {"%s: reference variable cannot be an array", 25, 75},
339 {"%s: requires pathname argument", 25, 76},
340 {"%s: restricted", 25, 77},
341 {"%s: singularity exception", 25, 78},
342 {"%s: subscript out of range", 25, 79},
343 {"%s: unbalanced parenthesis", 25, 80},
344 {"%s: unknown function", 25, 81},
345 {"%s: unknown locale", 25, 82},
346 {"%s: unknown operator", 25, 83},
347 {"%s: unknown signal name", 25, 84},
348 {"%s: would cause loop", 25, 85},
349 {"(coredump)", 25, 86},
350 {"-c requires argument", 25, 87},
351 {"-e - requires single argument", 25, 88},
353 {"<command unknown>", 25, 90},
354 {"AC:E#?F#?H:[name]L#?R#?Z#?fi#?[base]lnprtux [name=[value]...]", 25, 91},
355 {"AE#?F#?HL#?R#?Z#?fi#?[base]lnprtux [name=[value]...]", 25, 92},
357 {"Ad:[delim]prst#[timeout]u#[filenum] [name...]", 25, 94},
358 {"Alarm call", 25, 95},
359 {"Bad root node specification", 25, 96},
360 {"Bad system call", 25, 97},
361 {"Broken Pipe", 25, 98},
362 {"Bus error", 25, 99},
363 {"Cannot start job control", 25, 100},
364 {"Current option settings", 25, 101},
365 {"DIL signal", 25, 102},
366 {"Death of Child", 25, 103},
367 {"DircabefhkmnpstuvxCR:[file]o:?[option] [arg...]", 25, 104},
368 {"DircabefhkmnpstuvxCo:?[option] [arg...]", 25, 105},
369 {"EMT trap", 25, 106},
370 {"Exceeded CPU time limit", 25, 107},
371 {"Exceeded file size limit", 25, 108},
372 {"Floating exception", 25, 109},
373 {"HSacdfmnstv [limit]", 25, 110},
375 {"IO signal", 25, 112},
376 {"Illegal instruction", 25, 113},
377 {"Interrupt", 25, 114},
379 {"LP [dir] [change]", 25, 116},
380 {"Memory fault", 25, 117},
381 {"Migrate process", 25, 118},
382 {"No job control", 25, 119},
383 {"Phone interrupt", 25, 120},
384 {"Polling alarm", 25, 121},
385 {"Power fail", 25, 122},
386 {"Profiling time alarm", 25, 123},
388 {"Resources lost", 25, 125},
389 {"Reverting to old tty driver...", 25, 126},
390 {"S [mask]", 25, 127},
391 {"SIGAPOLLO", 25, 128},
392 {"Security label changed", 25, 129},
393 {"Socket interrupt", 25, 130},
394 {"Sound completed", 25, 131},
395 {"Stopped (signal)", 25, 132},
396 {"Stopped (tty input)", 25, 133},
397 {"Stopped process continued", 25, 134},
398 {"Stopped", 25, 135},
399 {"Stopped(tty output)", 25, 136},
400 {"Switching to new tty driver...", 25, 137},
401 {"System crash soon", 25, 138},
402 {"Terminated", 25, 139},
403 {"Trace/BPT trap", 25, 140},
404 {"Unrecognized version", 25, 141},
405 {"Use 'exit' to terminate this shell", 25, 142},
406 {"User signal 1", 25, 143},
407 {"User signal 2", 25, 144},
408 {"Version not defined", 25, 145},
409 {"Virtual time alarm", 25, 146},
410 {"Window size change", 25, 147},
411 {"You have running jobs", 25, 148},
412 {"You have stopped jobs", 25, 149},
413 {"[_[:alpha:]]*([_[:alnum:]])", 25, 150},
414 {"\n@(#)Version 12/28/93\0\n", 25, 151},
415 {"\n@(#)Version M-12/28/93\0\n", 25, 152},
417 {"\r\n\007shell will timeout in 60 seconds due to inactivity", 25, 154},
418 {"a name...", 25, 155},
419 {"a:c [command [args...] ]", 25, 156},
420 {"afpv name...", 25, 157},
421 {"alarm %s %.3f\n", 25, 158},
422 {"alarm -r %s +%.3g\n", 25, 159},
423 {"argument expected", 25, 160},
424 {"bad directory", 25, 161},
425 {"bad file unit number", 25, 162},
426 {"bad substitution", 25, 163},
427 {"cannot access parent directories", 25, 164},
428 {"cannot create pipe", 25, 165},
429 {"cannot create tempory file", 25, 166},
430 {"cannot fork", 25, 167},
431 {"cannot get %s", 25, 168},
432 {"cannot set %s", 25, 169},
433 {"cannot set alarm", 25, 170},
434 {"condition(s) required", 25, 171},
435 {"dsf:[library] [name...]", 25, 172},
436 {"e:[editor]lnrsN# [first] [last]", 25, 173},
437 {"end of file", 25, 174},
438 {"f:[format]enprsu:[filenum] [arg...]", 25, 175},
439 {"fnv name...", 25, 176},
440 {"hist -e \"${VISUAL:-${EDITOR:-vi}}\" ", 25, 177},
441 {"history file cannot open", 25, 178},
442 {"incorrect syntax", 25, 179},
443 {"invalid argument of type %c", 25, 180},
444 {"is a shell builtin version of", 25, 181},
445 {"is a tracked alias for", 25, 182},
447 {"line %d: $ not preceeded by \\", 25, 184},
448 {"line %d: %c within ${} should be quoted", 25, 185},
449 {"line %d: %s unknown label", 25, 186},
450 {"line %d: %s within [[...]] obsolete, use ((...))", 25, 187},
451 {"line %d: '=' obsolete, use '=='", 25, 188},
452 {"line %d: -a obsolete, use -e", 25, 189},
453 {"line %d: \\ in front of %c reserved for future use", 25, 190},
454 {"line %d: `...` obsolete, use $(...)", 25, 191},
455 {"line %d: escape %c to avoid ambiguities", 25, 192},
456 {"line %d: label %s ignored", 25, 193},
457 {"line %d: quote %c to avoid ambiguities", 25, 194},
458 {"line %d: set %s obsolete", 25, 195},
459 {"line %d: spaces required for nested subshell", 25, 196},
460 {"line %d: use braces to avoid ambiguities with $id[...]", 25, 197},
461 {"line %d: use space or tab to separate operators %c and %c", 25, 198},
462 {"ln#[signum]s:[signame] sig...", 25, 199},
463 {"login setuid/setgid shells prohibited", 25, 200},
464 {"mapping", 25, 201},
465 {"newline", 25, 202},
466 {"nlp [job...]", 25, 203},
467 {"no history file", 25, 204},
468 {"no query process", 25, 205},
469 {"no such job", 25, 206},
470 {"no such process", 25, 207},
471 {"not supported", 25, 208},
474 {"open file limit exceeded", 25, 211},
475 {"out of memory", 25, 212},
476 {"p [action condition...]", 25, 213},
477 {"p [name[=value]...]", 25, 214},
478 {"parameter not set", 25, 215},
479 {"permission denied", 25, 216},
480 {"process already exists", 25, 217},
481 {"ptx [name=[value]...]", 25, 218},
482 {"pvV name [arg]...", 25, 219},
483 {"r [varname seconds]", 25, 220},
484 {"syntax error at line %d: `%s' %s", 25, 221},
485 {"syntax error at line %d: duplicate label %s", 25, 222},
486 {"syntax error: `%s' %s", 25, 223},
488 {"timed out waiting for input", 25, 225},
489 {"unexpected", 25, 226},
490 {"universe not accessible", 25, 227},
491 {"unlimited", 25, 228},
492 {"unmatched", 25, 229},
494 {"versions", 25, 231},
495 {"write to %d failed", 25, 232},
496 {"you have mail in $_", 25, 233},
497 {"zero byte", 25, 234},
500 #define _CLIENT_CAT_NAME "dtksh.cat"
502 #define _CLIENT_CAT_NAME "dtksh"
503 #endif /* __ultrix */
506 * Without this proto, standard C says that _DtGetMessage() returns
507 * an int, even though it really returns a pointer. The compiler is
508 * then free to use the high 32-bits of the return register for
509 * something else (like scratch), and that can garble the pointer.
511 char *_DtGetMessage __PROTO__((char *filename, int set, int n, char *s));
512 #define GETMESSAGE(set, number, string)\
513 (_DtGetMessage(_CLIENT_CAT_NAME, set, number, string))
515 #include <nl_types.h>
517 static int localeChanged = 1;
519 void LocaleChanged __PARAM__((Namval_t *np, const char *val, int flags, Namfun_t *fp), (np, val, flags, fp)) __OTORP__(Namval_t *np; const char *val; int flags; Namfun_t *fp;)
522 nv_putv(np, val, flags, fp);
523 setlocale(LC_ALL, "");
527 /****************************************************************************
529 * The following two functions are ugly, but necessary. Ksh reserves file
530 * descriptors 0 - 9 for use by shell scripts, and has intimate knowledge
531 * of how and when they were opened. Unfortunately, certain dtksh functions
532 * (XtInitialize, catopen, ttdt_open, _DtActionInvoke, others) open file
533 * descriptors which are not known to ksh. We can't let these file
534 * descriptors fall in the 0 - 9 range, because we can't afford to have
535 * the shell script overriding our file descriptors. Therefore, any of
536 * our commands which open files must first lock our file descriptors 0 - 9,
537 * thus forcing the command to get a file descriptor out of the shell's
538 * range. After the command has opened its file descriptor, it then needs
539 * to unlock file descriptors 0 - 9, so that the shell script will have
540 * access to them again.
542 **************************************************************************/
546 * Return a list of the file descriptors we had to open, to lock out file
547 * descriptors 0 - 9; this list should be freed (and the file descriptors
548 * closed) by calling UnlockkshFileDescriptors().
551 int *LockKshFileDescriptors __PARAM__((void),())
557 fdList = (int *)malloc(sizeof(int) * 10);
558 for (i = 0; i < 10; i++)
561 if ((fd = open("/dev/null", O_RDONLY)) >= 0)
566 for (i = 1; i < 10; i++)
568 if ((newfd = dup(fd)) < 10)
584 void UnlockKshFileDescriptors __PARAM__((int *fdList), (fdList)) __OTORP__(int *fdList;)
588 for (i = 0; i < 10; i++)
590 if (fdList[i] != (-1))
594 free((char *)fdList);
598 * This function overrides the traditional libDtSvc version of this function.
599 * Since ksh dynamically changes to match the user's locale, we potentially
600 * need to change our message catalog in the middle of running.
604 char *_DtGetMessage __PARAM__((char *filename, int set, int n, char *s), (filename, set, n, s)) __OTORP__(char *filename; int set; int n; char *s;)
610 static nl_catd nlmsg_fd = (nl_catd)-1;
611 static char *lang = NULL;
615 int swappedNlsPath = 0;
617 static char pathBuf[1024] = {(char)'N', (char)'L', (char)'S', (char)'P',
618 (char)'A', (char)'T', (char)'H', (char)'='};
625 newLang = (char *) getenv ("LANG");
629 lang = strdup(newLang);
633 if (nlmsg_fd != (nl_catd)-1)
635 if(strcmp((oldPath = getenv("NLSPATH")), savedNlsPath) != 0)
638 pEqual = strchr(pathBuf, '=');
639 strcpy(pEqual + 1, savedNlsPath);
641 * Only call putenv if pathBuf isn't already holding NLSPATH
642 * in the environment.
644 if(oldPath != (pEqual + 1))
647 lockedFds = LockKshFileDescriptors();
648 nlmsg_fd = catopen(filename, 0);
649 UnlockKshFileDescriptors(lockedFds);
650 if(swappedNlsPath != 0)
653 pEqual = strchr(pathBuf, '=');
654 strcpy(pEqual + 1, oldPath);
655 if(oldPath != (pEqual + 1))
659 msg=catgets(nlmsg_fd,set,n,s);
664 * This function needs to be modified to handle international
665 * error message translations
667 static char *msg_translate __PARAM__((const char *message,int type), (message, type)) __OTORP__(const char *message;int type;)
669 int startIndex = 0, endIndex = sizeof(allmsgs)/sizeof(MsgStr) - 1,
670 midIndex, res, weFoundIt = 0;
672 if(type != 1) /* if it's not a shell message, don't translate */
673 return((char*)message);
675 while(startIndex != endIndex)
677 midIndex = (startIndex + endIndex) / 2;
678 if(midIndex == startIndex)
680 if((res = strcmp(allmsgs[startIndex].string, message)) == 0)
683 midIndex = startIndex;
688 if((res = strcmp(allmsgs[endIndex].string, message)) == 0)
695 /* we didn't find a match in the table */
701 if((res = strcmp(allmsgs[midIndex].string, message)) == 0)
704 break; /* we found it */
707 startIndex = midIndex;
713 return GETMESSAGE(allmsgs[midIndex].setNum, allmsgs[midIndex].msgNum, (char *)message);
715 return((char*)message);
719 # ifdef SHOPT_MULTIBYTE
720 void charsize_init __PARAM__((void), ()){
721 static char fc[3] = { 0301, ESS2, ESS3};
725 memset(buff,0301,MB_CUR_MAX);
729 if((n=mbtowc(&wc,buff,MB_CUR_MAX))>0)
731 if((int_charsize[i+1] = n-(i>0))>0)
732 int_charsize[i+5] = wcwidth(wc);
734 int_charsize[i+5] = 0;
738 # endif /* SHOPT_MULTIBYTE */
740 /* Trap for LC_ALL, LC_TYPE, LC_MESSAGES, LC_COLLATE and LANG */
741 static void put_lang __PARAM__((Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(Namval_t* np;const char *val;int flags;Namfun_t *fp;){
743 char *lc_all = nv_getval(LCALLNOD);
744 if(nv_name(np)==nv_name(LCTYPENOD))
746 else if(nv_name(np)==nv_name(LCMSGNOD))
748 else if(nv_name(np)==nv_name(LCCOLLNOD))
750 else if(nv_name(np)==nv_name(LCNUMNOD))
752 else if(nv_name(np)==nv_name(LANGNOD) && !lc_all)
756 if(type>=0 && type!=LC_ALL && !lc_all)
760 if(!setlocale(type,val?val:""))
762 error(0,e_badlocale,val);
766 if(type==LC_ALL || type==LC_CTYPE)
768 if(sh_lexstates[ST_BEGIN]!=sh_lexrstates[ST_BEGIN])
769 free((__V_*)sh_lexstates[ST_BEGIN]);
770 if(ast.locale.set&LC_SET_CTYPE)
774 sh_lexstates[ST_BEGIN] = state[0] = (char*)malloc(4*(1<<CHAR_BIT));
775 memcpy(state[0],sh_lexrstates[ST_BEGIN],(1<<CHAR_BIT));
776 sh_lexstates[ST_NAME] = state[1] = state[0] + (1<<CHAR_BIT);
777 memcpy(state[1],sh_lexrstates[ST_NAME],(1<<CHAR_BIT));
778 sh_lexstates[ST_DOL] = state[2] = state[1] + (1<<CHAR_BIT);
779 memcpy(state[2],sh_lexrstates[ST_DOL],(1<<CHAR_BIT));
780 sh_lexstates[ST_BRACE] = state[3] = state[2] + (1<<CHAR_BIT);
781 memcpy(state[3],sh_lexrstates[ST_BRACE],(1<<CHAR_BIT));
782 for(c=0; c<(1<<CHAR_BIT); c++)
793 if(state[0][c]==S_REG)
795 if(state[1][c]==S_REG)
797 if(state[2][c]==S_ERR)
799 if(state[3][c]==S_ERR)
805 sh_lexstates[ST_BEGIN]=(char*)sh_lexrstates[ST_BEGIN];
806 sh_lexstates[ST_NAME]=(char*)sh_lexrstates[ST_NAME];
807 sh_lexstates[ST_DOL]=(char*)sh_lexrstates[ST_DOL];
808 sh_lexstates[ST_BRACE]=(char*)sh_lexrstates[ST_BRACE];
810 #ifdef SHOPT_MULTIBYTE
812 #endif /* SHOPT_MULTIBYTE */
814 if(type==LC_ALL || type==LC_MESSAGES)
815 error_info.translate = msg_translate;
816 nv_putv(np, val, flags, fp);
818 #endif /* _hdr_locale */
820 /* Trap for IFS assignment and invalidates state table */
821 static void put_ifs __PARAM__((register Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(register Namval_t* np;const char *val;int flags;Namfun_t *fp;){
823 nv_putv(np, val, flags, fp);
827 * This is the lookup function for IFS
828 * It keeps the sh.ifstable up to date
830 static char* get_ifs __PARAM__((register Namval_t* np, Namfun_t *fp), (np, fp)) __OTORP__(register Namval_t* np; Namfun_t *fp;){
831 register char *cp, *value;
833 value = nv_getv(np,fp);
837 memset(sh.ifstable,0,(1<<CHAR_BIT));
840 #ifdef SHOPT_MULTIBYTE
841 while(n=mbtowc(0,cp,MB_CUR_MAX),c= *(unsigned char*)cp)
843 while(c= *(unsigned char*)cp++)
844 #endif /* SHOPT_MULTIBYTE */
846 #ifdef SHOPT_MULTIBYTE
850 sh.ifstable[c] = S_MBYTE;
853 #endif /* SHOPT_MULTIBYTE */
864 sh.ifstable[' '] = sh.ifstable['\t'] = S_SPACE;
865 sh.ifstable['\n'] = S_NL;
872 * these functions are used to get and set the SECONDS variable
874 #ifdef _lib_gettimeofday
875 # define dtime(tp) ((double)((tp)->tv_sec)+1e-6*((double)((tp)->tv_usec)))
878 # define dtime(tp) (((double)times(tp))/sh.lim.clk_tck)
879 # define gettimeofday(a,b)
882 static void put_seconds __PARAM__((register Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(register Namval_t* np;const char *val;int flags;Namfun_t *fp;){
883 static double sec_offset;
889 nv_stack(np, NIL(Namfun_t*));
897 gettimeofday(&tp,NIL(void *));
898 sec_offset = dtime(&tp)-d;
902 np->nvalue.dp = &sec_offset;
906 static char* get_seconds __PARAM__((register Namval_t* np, Namfun_t *fp), (np, fp)) __OTORP__(register Namval_t* np; Namfun_t *fp;){
910 gettimeofday(&tp,NIL(void *));
911 d = dtime(&tp)- *np->nvalue.dp;
912 return(sh_ftos(d,nv_size(np)));
915 static double nget_seconds __PARAM__((register Namval_t* np, Namfun_t *fp), (np, fp)) __OTORP__(register Namval_t* np; Namfun_t *fp;){
918 gettimeofday(&tp,NIL(void *));
919 return(dtime(&tp)- *np->nvalue.dp);
923 * These three functions are used to get and set the RANDOM variable
925 static void put_rand __PARAM__((register Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(register Namval_t* np;const char *val;int flags;Namfun_t *fp;){
926 static long rand_last;
931 nv_stack(np, NIL(Namfun_t*));
939 srand((int)(n&RANDMASK));
942 np->nvalue.lp = &rand_last;
946 * get random number in range of 0 - 2**15
947 * never pick same number twice in a row
949 static double nget_rand __PARAM__((register Namval_t* np, Namfun_t *fp), (np, fp)) __OTORP__(register Namval_t* np; Namfun_t *fp;){
950 register long cur, last= *np->nvalue.lp;
953 cur = (rand()>>rand_shift)&RANDMASK;
955 *np->nvalue.lp = cur;
959 static char* get_rand __PARAM__((register Namval_t* np, Namfun_t *fp), (np, fp)) __OTORP__(register Namval_t* np; Namfun_t *fp;){
960 register long n = nget_rand(np,fp);
961 return(fmtbase(n, 10, 0));
965 * These three routines are for LINENO
967 static double nget_lineno __PARAM__((Namval_t* np, Namfun_t *fp), (np, fp)) __OTORP__(Namval_t* np; Namfun_t *fp;){
969 if(error_info.line >0)
971 else if(error_info.context && error_info.context->line>0)
972 d = error_info.context->line;
978 static void put_lineno __PARAM__((Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(Namval_t* np;const char *val;int flags;Namfun_t *fp;){
983 nv_stack(np, NIL(Namfun_t*));
991 sh.st.firstline += nget_lineno(np,fp)+1-n;
994 static char* get_lineno __PARAM__((register Namval_t* np, Namfun_t *fp), (np, fp)) __OTORP__(register Namval_t* np; Namfun_t *fp;){
995 register long n = nget_lineno(np,fp);
996 return(fmtbase(n, 10, 0));
999 static char* get_lastarg __PARAM__((Namval_t* np, Namfun_t *fp), (np, fp)) __OTORP__(Namval_t* np; Namfun_t *fp;){
1005 static void put_lastarg __PARAM__((Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(Namval_t* np;const char *val;int flags;Namfun_t *fp;){
1007 if(flags&NV_INTEGER)
1008 val = sh_etos(*((double*)val),12);
1009 if(sh.lastarg && !nv_isattr(np,NV_NOFREE))
1010 free((__V_*)sh.lastarg);
1012 nv_offattr(np,NV_NOFREE);
1014 sh.lastarg = strdup(val);
1021 * set or unset the mappings given a colon separated list of directories
1023 static void vpath_set __PARAM__((char *str, int mode), (str, mode)) __OTORP__(char *str; int mode;){
1024 register char *lastp, *oldp=str, *newp=strchr(oldp,':');
1030 if(lastp=strchr(newp,':'))
1032 mount((mode?newp:""),oldp,FS3D_VIEW,0);
1039 /* catch vpath assignments */
1040 static void put_vpath __PARAM__((register Namval_t* np,const char *val,int flags,Namfun_t *fp), (np, val, flags, fp)) __OTORP__(register Namval_t* np;const char *val;int flags;Namfun_t *fp;){
1042 if(cp = nv_getval(np))
1045 vpath_set((char*)val,1);
1046 nv_putv(np,val,flags,fp);
1048 static const Namdisc_t VPATH_disc = { 0, put_vpath };
1049 static Namfun_t VPATH_init = { &VPATH_disc };
1050 #endif /* SHOPT_FS_3D */
1052 static const Namdisc_t IFS_disc = { 0, put_ifs, get_ifs };
1053 static const Namdisc_t RESTRICTED_disc = { 0, put_restricted };
1054 static const Namdisc_t EDITOR_disc = { 0, put_ed };
1055 static const Namdisc_t OPTINDEX_disc = { 0, put_optindex };
1056 static const Namdisc_t SECONDS_disc = { 0, put_seconds, get_seconds, nget_seconds };
1057 static const Namdisc_t RAND_disc = { 0, put_rand, get_rand, nget_rand };
1058 static const Namdisc_t LINENO_disc = { 0, put_lineno, get_lineno, nget_lineno };
1059 static const Namdisc_t L_ARG_disc = { 0, put_lastarg, get_lastarg };
1060 static Namfun_t IFS_init = { &IFS_disc};
1061 static Namfun_t PATH_init = { &RESTRICTED_disc};
1062 static Namfun_t SHELL_init = { &RESTRICTED_disc};
1063 static Namfun_t ENV_init = { &RESTRICTED_disc};
1064 static Namfun_t VISUAL_init = { &EDITOR_disc};
1065 static Namfun_t EDITOR_init = { &EDITOR_disc};
1066 static Namfun_t OPTINDEX_init = { &OPTINDEX_disc};
1067 static Namfun_t SECONDS_init = { &SECONDS_disc};
1068 static Namfun_t RAND_init = { &RAND_disc};
1069 static Namfun_t LINENO_init = { &LINENO_disc};
1070 static Namfun_t L_ARG_init = { &L_ARG_disc};
1072 static const Namdisc_t LC_disc = { 0, put_lang };
1073 static Namfun_t LC_TYPE_init = { &LC_disc};
1074 static Namfun_t LC_NUM_init = { &LC_disc};
1075 static Namfun_t LC_COLL_init = { &LC_disc};
1076 static Namfun_t LC_MSG_init = { &LC_disc};
1077 static Namfun_t LC_ALL_init = { &LC_disc};
1078 static Namfun_t LANG_init = { &LC_disc};
1079 #endif /* _hdr_locale */
1081 static const Namdisc_t SYSTYPE_disc = { 0, put_systype };
1082 static Namfun_t SYSTYPE_init = { &SYSTYPEdisc};
1084 #ifdef SHOPT_MULTIBYTE
1085 static const Namdisc_t CSWIDTH_disc = { 0, put_cswidth };
1086 static Namfun_t CSWIDTH_init = { &CSWIDTH_disc};
1087 #endif /* SHOPT_MULTIBYTE */
1090 * This function will get called whenever a configuration parameter changes
1092 static int newconf __PARAM__((const char *name, const char *path, const char *value), (name, path, value)) __OTORP__(const char *name; const char *path; const char *value;){
1094 if(strcmp(name,"UNIVERSE")==0 && strcmp(astconf(name,0,0),value))
1097 /* set directory in new universe */
1098 if(*(arg = path_pwd(0))=='/')
1100 /* clear out old tracked alias */
1102 stakputs(nv_getval(PATHNOD));
1104 nv_putval(PATHNOD,stakseek(0),NV_RDONLY);
1110 * initialize the shell
1112 int sh_init __PARAM__((register int argc,register char *argv[]), (argc, argv)) __OTORP__(register int argc;register char *argv[];){
1113 register char *name;
1114 register int n,prof;
1118 memcpy(sh_lexstates,sh_lexrstates,ST_NONE*sizeof(char*));
1119 sh_onstate(SH_INIT);
1120 error_info.exit = sh_exit;
1121 error_info.id = path_basename(argv[0]);
1125 sh.euserid=geteuid();
1126 sh.groupid=getgid();
1127 sh.egroupid=getegid();
1128 for(n=0;n < 10; n++)
1130 /* don't use lower bits when rand() generates large numbers */
1131 if(rand() > RANDMASK)
1137 sh.lim.clk_tck = sysconf(_SC_CLK_TCK);
1138 sh.lim.open_max = sysconf(_SC_OPEN_MAX);
1139 sh.lim.child_max = sysconf(_SC_CHILD_MAX);
1140 sh.lim.ngroups_max = sysconf(_SC_NGROUPS_MAX);
1141 sh.lim.posix_version = sysconf(_SC_VERSION);
1142 sh.lim.posix_jobcontrol = sysconf(_SC_JOB_CONTROL);
1143 if(sh.lim.child_max <=0)
1144 sh.lim.child_max = CHILD_MAX;
1145 if(sh.lim.open_max <0)
1146 sh.lim.open_max = OPEN_MAX;
1147 if(sh.lim.clk_tck <=0)
1148 sh.lim.clk_tck = CLK_TCK;
1150 if(mount(".", NIL(char*),FS3D_GET|FS3D_VERSION,0) >= 0)
1152 #endif /* SHOPT_FS_3D */
1154 /* initialize signal handling */
1156 stakinstall(NIL(Stak_t*),nospace);
1157 /* set up memory for name-value pairs */
1159 /* read the environment */
1160 #ifdef SHOPT_MULTIBYTE
1162 #endif /* SHOPT_MULTIBYTE */
1164 nv_putval(IFSNOD,(char*)e_sptbnl,NV_RDONLY);
1166 nv_stack(VPATHNOD, &VPATH_init);
1167 #endif /* SHOPT_FS_3D */
1168 astconfdisc(newconf);
1169 #ifdef SHOPT_TIMEOUT
1170 sh.tmout = SHOPT_TIMEOUT;
1171 #endif /* SHOPT_TIMEOUT */
1172 /* initialize jobs table */
1176 name = path_basename(*argv);
1182 /* check for restricted shell */
1183 if(argc>0 && strmatch(name,rsh_pattern))
1184 sh_onoption(SH_RESTRICTED);
1185 /* look for options */
1186 /* sh.st.dolc is $# */
1187 if((sh.st.dolc = sh_argopts(-argc,argv)) < 0)
1192 sh.st.dolv=argv+(argc-1)-sh.st.dolc;
1193 sh.st.dolv[0] = argv[0];
1195 sh_onoption(SH_SFLAG);
1196 if(!sh_isoption(SH_SFLAG))
1202 /* set[ug]id scripts require the -p flag */
1203 prof = !sh_isoption(SH_PRIVILEGED);
1204 if(sh.userid!=sh.euserid || sh.groupid!=sh.egroupid)
1207 /* require sh -p to run setuid and/or setgid */
1208 if(!sh_isoption(SH_PRIVILEGED) && sh.euserid < SHOPT_P_SUID)
1210 setuid(sh.euserid=sh.userid);
1211 seTgid(sh.egroupid=sh.groupid);
1216 sh_onoption(SH_PRIVILEGED);
1219 #endif /* SHOPT_P_SUID */
1221 /* careful of #! setuid scripts with name beginning with - */
1222 if(sh.login_sh && strcmp(argv[0],argv[1])==0)
1223 error(ERROR_exit(1),e_prohibited);
1224 #endif /*SHELLMAGIC*/
1227 sh_offoption(SH_PRIVILEGED);
1228 sh.shname = strdup(sh.st.dolv[0]); /* shname for $0 in profiles */
1230 * return here for shell script execution
1231 * but not for parenthesis subshells
1233 error_info.id = strdup(sh.st.dolv[0]); /* error_info.id is $0 */
1234 sh_offstate(SH_INIT);
1239 * reinitialize before executing a script
1241 void sh_reinit __PARAM__((char *argv[]), (argv)) __OTORP__(char *argv[];){
1243 nv_scan(sh.var_tree,sh_envnolocal,NV_EXPORT,0);
1244 hashfree(sh.fun_tree);
1245 sh.fun_tree = hashalloc(sh.bltin_tree,HASH_set,HASH_SCOPE|HASH_ALLOCATE,0);
1246 hashfree(sh.alias_tree);
1247 sh.alias_tree = inittree(shtab_aliases);
1248 /* set up new args */
1249 sh.arglist = sh_argcreate(argv);
1253 * set when creating a local variable of this name
1255 Namfun_t *nv_cover __PARAM__((register Namval_t *np), (np)) __OTORP__(register Namval_t *np;){
1256 register Namfun_t *nfp=0;
1259 else if(np==PATHNOD)
1261 else if(np==SHELLNOD)
1267 * Initialize the shell name and alias table
1269 static void nv_init __PARAM__((void), ()){
1271 sh.var_base = sh.var_tree = inittree(shtab_variables);
1272 nv_stack(IFSNOD, &IFS_init);
1273 nv_stack(PATHNOD, &PATH_init);
1274 nv_stack(SHELLNOD, &SHELL_init);
1275 nv_stack(ENVNOD, &ENV_init);
1276 nv_stack(VISINOD, &VISUAL_init);
1277 nv_stack(EDITNOD, &EDITOR_init);
1278 nv_stack(OPTINDNOD, &OPTINDEX_init);
1279 nv_stack(SECONDS, &SECONDS_init);
1280 nv_stack(L_ARGNOD, &L_ARG_init);
1281 nv_putval(SECONDS, (char*)&d, NV_INTEGER);
1282 nv_stack(RANDNOD, &RAND_init);
1283 d = (sh.pid&RANDMASK);
1284 nv_putval(RANDNOD, (char*)&d, NV_INTEGER);
1285 nv_stack(LINENO, &LINENO_init);
1287 nv_stack(LCTYPENOD, &LC_TYPE_init);
1288 nv_stack(LCALLNOD, &LC_ALL_init);
1289 nv_stack(LCMSGNOD, &LC_MSG_init);
1290 nv_stack(LCCOLLNOD, &LC_COLL_init);
1291 nv_stack(LCNUMNOD, &LC_NUM_init);
1292 nv_stack(LANGNOD, &LANG_init);
1293 #endif /* _hdr_locale */
1295 nv_stack(SYSTYPENOD, &SYSTYPE_init);
1297 #ifdef SHOPT_MULTIBYTE
1298 nv_stack(CSWIDTHNOD, &CSWIDTH_init);
1299 #endif /* SHOPT_MULTIBYTE */
1300 (PPIDNOD)->nvalue.lp = (&sh.ppid);
1301 (TMOUTNOD)->nvalue.lp = (&sh.tmout);
1302 (MCHKNOD)->nvalue.lp = (long*)(&sh_mailchk);
1303 (OPTINDNOD)->nvalue.lp = (&sh.st.optindex);
1304 /* set up the seconds clock */
1305 sh.alias_tree = inittree(shtab_aliases);
1306 sh.track_tree = hashalloc(sh.var_tree,HASH_set,HASH_ALLOCATE,0);
1307 sh.bltin_tree = inittree((const struct shtable2*)shtab_builtins);
1308 sh.fun_tree = hashalloc(sh.bltin_tree,HASH_set,HASH_SCOPE|HASH_ALLOCATE,0);
1312 * initialize name-value pairs
1315 static Hashtab_t *inittree __PARAM__((const struct shtable2 *name_vals), (name_vals)) __OTORP__(const struct shtable2 *name_vals;){
1316 register Namval_t *np;
1317 register const struct shtable2 *tp;
1318 register unsigned n = 0;
1319 register Hashtab_t *treep;
1320 for(tp=name_vals;*tp->sh_name;tp++)
1322 np = (Namval_t*)calloc(n,sizeof(Namval_t));
1324 sh.bltin_nodes = np;
1325 else if(name_vals==(const struct shtable2*)shtab_builtins)
1328 treep = hashalloc(sh.var_tree,HASH_set,HASH_BUCKET,HASH_name,"vars",sh.var_tree?0:HASH_free,nv_unset,0);
1329 treep->root->flags |= HASH_BUCKET;
1331 treep = hashalloc(sh.var_tree,HASH_name,"vars",sh.var_tree?0:HASH_unset,nv_unset,0);
1333 for(tp=name_vals;*tp->sh_name;tp++,np++)
1335 np->name = (char*)tp->sh_name;
1337 if(name_vals==(const struct shtable2*)shtab_builtins)
1339 np->nvalue.bfp = ((struct shtable3*)tp)->sh_value;
1342 np->nvenv = np->name;
1343 np->name = path_basename(np->name);
1347 np->nvalue.cp = (char*)tp->sh_value;
1348 nv_setattr(np,tp->sh_number);
1349 if(nv_isattr(np,NV_INTEGER))
1355 hashset(treep,HASH_ALLOCATE);
1360 * read in the process environment and set up name-value pairs
1361 * skip over items that are not name-value pairs
1364 static void env_init __PARAM__((void), ()){
1366 register Namval_t *np;
1367 register char **ep=environ;
1368 register char *next=0;
1373 if(*cp=='A' && cp[1]=='_' && cp[2]=='_' && cp[3]=='z' && cp[4]=='=')
1375 else if(np=nv_open(cp,sh.var_tree,(NV_EXPORT|NV_IDENT|NV_ASSIGN)))
1377 nv_onattr(np,NV_IMPORT);
1384 if(next = strchr(++cp,'='))
1386 np = nv_search(cp+2,sh.var_tree,NV_ADD);
1387 if(nv_isattr(np,NV_IMPORT|NV_EXPORT))
1388 nv_newattr(np,(unsigned)(cp[0]-' ')|NV_IMPORT|NV_EXPORT,cp[1]-' ');
1391 if(nv_isattr(PWDNOD,NV_TAGGED))
1393 nv_offattr(PWDNOD,NV_TAGGED);
1396 if(cp = nv_getval(SHELLNOD))
1398 cp = path_basename(cp);
1399 if(strmatch(cp,rsh_pattern))
1400 sh_onoption(SH_RESTRICTED); /* restricted shell */
1406 * terminate shell and free up the space
1408 int sh_term __PARAM__((void), ()){
1409 sfdisc(sfstdin,SF_POPDISC);
1410 free((char*)sh.outbuff);
1411 stakset(NIL(char*),0);