Commit | Line | Data |
---|---|---|
ecc449eb KB |
1 | /*- |
2 | * Copyright (c) 1980, 1991 The Regents of the University of California. | |
3 | * All rights reserved. | |
b79f4fa9 | 4 | * |
ecc449eb KB |
5 | * %sccs.include.redist.c% |
6 | * | |
635843dc | 7 | * @(#)csh.h 5.26 (Berkeley) %G% |
b79f4fa9 | 8 | */ |
a72f8ea1 | 9 | |
0aec749d CZ |
10 | /* |
11 | * Fundamental definitions which may vary from system to system. | |
12 | * | |
13 | * BUFSIZ The i/o buffering size; also limits word size | |
14 | * MAILINTVL How often to mailcheck; more often is more expensive | |
15 | */ | |
16 | #ifndef BUFSIZ | |
17 | #define BUFSIZ 1024 /* default buffer size */ | |
18 | #endif /* BUFSIZ */ | |
19 | ||
20 | #define FORKSLEEP 10 /* delay loop on non-interactive fork failure */ | |
21 | #define MAILINTVL 600 /* 10 minutes */ | |
22 | ||
23 | /* | |
24 | * The shell moves std in/out/diag and the old std input away from units | |
25 | * 0, 1, and 2 so that it is easy to set up these standards for invoked | |
26 | * commands. | |
27 | */ | |
28 | #define FSHTTY 15 /* /dev/tty when manip pgrps */ | |
29 | #define FSHIN 16 /* Preferred desc for shell input */ | |
30 | #define FSHOUT 17 /* ... shell output */ | |
454c2aa3 | 31 | #define FSHERR 18 /* ... shell diagnostics */ |
0aec749d CZ |
32 | #define FOLDSTD 19 /* ... old std input */ |
33 | ||
34 | #ifdef PROF | |
35 | #define xexit(n) done(n) | |
36 | #endif | |
37 | ||
4d7b2685 KB |
38 | #ifdef SHORT_STRINGS |
39 | typedef short Char; | |
40 | ||
41 | #define SAVE(a) (Strsave(str2short(a))) | |
42 | #else | |
43 | typedef char Char; | |
44 | ||
45 | #define SAVE(a) (strsave(a)) | |
46 | #endif | |
47 | ||
37999c01 CZ |
48 | /* |
49 | * Make sure a variable is not stored in a register by taking its address | |
50 | * This is used where variables might be clobbered by longjmp. | |
51 | */ | |
52 | #define UNREGISTER(a) (void) &a | |
53 | ||
4d7b2685 | 54 | typedef void *ioctl_t; /* Third arg of ioctl */ |
6e37afca KB |
55 | |
56 | typedef void *ptr_t; | |
57 | ||
b9c4f741 | 58 | #include "const.h" |
4d7b2685 KB |
59 | #include "char.h" |
60 | #include "err.h" | |
61 | ||
4d7b2685 | 62 | #define xmalloc(i) Malloc(i) |
6e37afca KB |
63 | #define xrealloc(p, i) Realloc(p, i) |
64 | #define xcalloc(n, s) Calloc(n, s) | |
4d7b2685 | 65 | #define xfree(p) Free(p) |
6e37afca | 66 | |
454c2aa3 CZ |
67 | #include <stdio.h> |
68 | FILE *cshin, *cshout, *csherr; | |
69 | ||
6e37afca KB |
70 | #define isdir(d) ((d.st_mode & S_IFMT) == S_IFDIR) |
71 | ||
6e37afca KB |
72 | typedef int bool; |
73 | ||
74 | #define eq(a, b) (Strcmp(a, b) == 0) | |
75 | ||
76 | /* globone() flags */ | |
77 | #define G_ERROR 0 /* default action: error if multiple words */ | |
4d7b2685 KB |
78 | #define G_IGNORE 1 /* ignore the rest of the words */ |
79 | #define G_APPEND 2 /* make a sentence by cat'ing the words */ | |
2f2a0649 | 80 | |
8c95f417 BJ |
81 | /* |
82 | * Global flags | |
83 | */ | |
6e37afca KB |
84 | bool chkstop; /* Warned of stopped jobs... allow exit */ |
85 | bool didfds; /* Have setup i/o fd's for child */ | |
86 | bool doneinp; /* EOF indicator after reset from readc */ | |
87 | bool exiterr; /* Exit if error or non-zero exit status */ | |
88 | bool child; /* Child shell ... errors cause exit */ | |
89 | bool haderr; /* Reset was because of an error */ | |
90 | bool intty; /* Input is a tty */ | |
91 | bool intact; /* We are interactive... therefore prompt */ | |
92 | bool justpr; /* Just print because of :p hist mod */ | |
93 | bool loginsh; /* We are a loginsh -> .login/.logout */ | |
94 | bool neednote; /* Need to pnotify() */ | |
95 | bool noexec; /* Don't execute, just syntax check */ | |
96 | bool pjobs; /* want to print jobs if interrupted */ | |
97 | bool setintr; /* Set interrupts on/off -> Wait intr... */ | |
98 | bool timflg; /* Time the next waited for command */ | |
99 | bool havhash; /* path hashing is available */ | |
100 | ||
35371dec | 101 | #ifdef FILEC |
6e37afca | 102 | bool filec; /* doing filename expansion */ |
35371dec | 103 | #endif |
8c95f417 BJ |
104 | |
105 | /* | |
106 | * Global i/o info | |
107 | */ | |
6e37afca KB |
108 | Char *arginp; /* Argument input for sh -c and internal `xx` */ |
109 | int onelflg; /* 2 -> need line for -t, 1 -> exit on read */ | |
110 | Char *ffile; /* Name of shell file for $0 */ | |
8c95f417 | 111 | |
6e37afca KB |
112 | char *seterr; /* Error message from scanner/parser */ |
113 | Char *shtemp; /* Temp name for << shell files in /tmp */ | |
114 | ||
d08af90b | 115 | #include <sys/types.h> |
b9c4f741 KB |
116 | #include <sys/time.h> |
117 | #include <sys/resource.h> | |
118 | ||
6e37afca KB |
119 | struct timeval time0; /* Time at which the shell started */ |
120 | struct rusage ru0; | |
8c95f417 BJ |
121 | |
122 | /* | |
123 | * Miscellany | |
124 | */ | |
6e37afca | 125 | Char *doldol; /* Character pid for $$ */ |
5498b8cd | 126 | int backpid; /* Pid of the last background process */ |
d21ac901 CZ |
127 | int uid, euid; /* Invokers uid */ |
128 | int gid, egid; /* Invokers gid */ | |
6e37afca KB |
129 | time_t chktim; /* Time mail last checked */ |
130 | int shpgrp; /* Pgrp of shell */ | |
131 | int tpgrp; /* Terminal process group */ | |
132 | ||
8c95f417 | 133 | /* If tpgrp is -1, leave tty alone! */ |
6e37afca | 134 | int opgrp; /* Initial pgrp and tty pgrp */ |
8c95f417 | 135 | |
8c95f417 BJ |
136 | |
137 | /* | |
138 | * To be able to redirect i/o for builtins easily, the shell moves the i/o | |
139 | * descriptors it uses away from 0,1,2. | |
140 | * Ideally these should be in units which are closed across exec's | |
141 | * (this saves work) but for version 6, this is not usually possible. | |
635843dc | 142 | * The desired initial values for these descriptors are F{SHIN,...}. |
8c95f417 | 143 | */ |
454c2aa3 CZ |
144 | int SHIN; /* Current shell input (script) */ |
145 | int SHOUT; /* Shell output */ | |
146 | int SHERR; /* Diagnostic output... shell errs go here */ | |
147 | int OLDSTD; /* Old standard input (def for cmds) */ | |
8c95f417 BJ |
148 | |
149 | /* | |
150 | * Error control | |
151 | * | |
152 | * Errors in scanning and parsing set up an error message to be printed | |
153 | * at the end and complete. Other errors always cause a reset. | |
154 | * Because of source commands and .cshrc we need nested error catches. | |
155 | */ | |
156 | ||
b9c4f741 | 157 | #include <setjmp.h> |
6e37afca KB |
158 | jmp_buf reslab; |
159 | ||
160 | #define setexit() (setjmp(reslab)) | |
161 | #define reset() longjmp(reslab, 1) | |
162 | /* Should use structure assignment here */ | |
163 | #define getexit(a) bcopy((char *)reslab, ((char *)(a)), sizeof reslab) | |
164 | #define resexit(a) bcopy((char *)(a), (char *)reslab, sizeof reslab) | |
8c95f417 | 165 | |
6e37afca | 166 | Char *gointr; /* Label for an onintr transfer */ |
8c95f417 | 167 | |
b9c4f741 | 168 | #include <signal.h> |
6e37afca KB |
169 | sig_t parintr; /* Parents interrupt catch */ |
170 | sig_t parterm; /* Parents terminate catch */ | |
8c95f417 BJ |
171 | |
172 | /* | |
173 | * Lexical definitions. | |
174 | * | |
175 | * All lexical space is allocated dynamically. | |
1bf25f10 | 176 | * The eighth/sixteenth bit of characters is used to prevent recognition, |
8c95f417 BJ |
177 | * and eventually stripped. |
178 | */ | |
6e37afca KB |
179 | #define META 0200 |
180 | #define ASCII 0177 | |
181 | #ifdef SHORT_STRINGS | |
182 | #define CHAR 0377 | |
183 | #define QUOTE 0100000 /* 16nth char bit used for 'ing */ | |
184 | #define TRIM 0077777 /* Mask to strip quote bit */ | |
185 | #else | |
186 | #define CHAR 0177 | |
187 | #define QUOTE 0200 /* Eighth char bit used for 'ing */ | |
188 | #define TRIM 0177 /* Mask to strip quote bit */ | |
189 | #endif | |
190 | ||
191 | int AsciiOnly; /* If set only 7 bits is expected in characters */ | |
8c95f417 BJ |
192 | |
193 | /* | |
194 | * Each level of input has a buffered input structure. | |
195 | * There are one or more blocks of buffered input for each level, | |
196 | * exactly one if the input is seekable and tell is available. | |
197 | * In other cases, the shell buffers enough blocks to keep all loops | |
198 | * in the buffer. | |
199 | */ | |
289ec3f8 | 200 | struct Bin { |
6e37afca KB |
201 | off_t Bfseekp; /* Seek pointer */ |
202 | off_t Bfbobp; /* Seekp of beginning of buffers */ | |
203 | off_t Bfeobp; /* Seekp of end of buffers */ | |
454c2aa3 | 204 | int Bfblocks; /* Number of buffer blocks */ |
6e37afca KB |
205 | Char **Bfbuf; /* The array of buffer blocks */ |
206 | } B; | |
8c95f417 | 207 | |
c4a58397 CZ |
208 | /* |
209 | * This structure allows us to seek inside aliases | |
210 | */ | |
211 | struct Ain { | |
212 | int type; | |
213 | #define I_SEEK -1 /* Invalid seek */ | |
214 | #define A_SEEK 0 /* Alias seek */ | |
215 | #define F_SEEK 1 /* File seek */ | |
216 | #define E_SEEK 2 /* Eval seek */ | |
555d3867 CZ |
217 | union { |
218 | off_t _f_seek; | |
219 | Char* _c_seek; | |
220 | } fc; | |
221 | #define f_seek fc._f_seek | |
222 | #define c_seek fc._c_seek | |
c4a58397 CZ |
223 | Char **a_seek; |
224 | } ; | |
225 | extern int aret; /* What was the last character returned */ | |
226 | #define SEEKEQ(a, b) ((a)->type == (b)->type && \ | |
227 | (a)->f_seek == (b)->f_seek && \ | |
228 | (a)->a_seek == (b)->a_seek) | |
229 | ||
8c95f417 BJ |
230 | #define fseekp B.Bfseekp |
231 | #define fbobp B.Bfbobp | |
232 | #define feobp B.Bfeobp | |
233 | #define fblocks B.Bfblocks | |
234 | #define fbuf B.Bfbuf | |
235 | ||
8c95f417 BJ |
236 | /* |
237 | * The shell finds commands in loops by reseeking the input | |
238 | * For whiles, in particular, it reseeks to the beginning of the | |
239 | * line the while was on; hence the while placement restrictions. | |
240 | */ | |
c4a58397 | 241 | struct Ain lineloc; |
8c95f417 | 242 | |
6e37afca KB |
243 | bool cantell; /* Is current source tellable ? */ |
244 | ||
8c95f417 BJ |
245 | /* |
246 | * Input lines are parsed into doubly linked circular | |
247 | * lists of words of the following form. | |
248 | */ | |
289ec3f8 | 249 | struct wordent { |
6e37afca KB |
250 | Char *word; |
251 | struct wordent *prev; | |
252 | struct wordent *next; | |
8c95f417 BJ |
253 | }; |
254 | ||
255 | /* | |
256 | * During word building, both in the initial lexical phase and | |
257 | * when expanding $ variable substitutions, expansion by `!' and `$' | |
258 | * must be inhibited when reading ahead in routines which are themselves | |
259 | * processing `!' and `$' expansion or after characters such as `\' or in | |
260 | * quotations. The following flags are passed to the getC routines | |
261 | * telling them which of these substitutions are appropriate for the | |
262 | * next character to be returned. | |
263 | */ | |
264 | #define DODOL 1 | |
265 | #define DOEXCL 2 | |
266 | #define DOALL DODOL|DOEXCL | |
267 | ||
268 | /* | |
269 | * Labuf implements a general buffer for lookahead during lexical operations. | |
6e37afca KB |
270 | * Text which is to be placed in the input stream can be stuck here. |
271 | * We stick parsed ahead $ constructs during initial input, | |
272 | * process id's from `$$', and modified variable values (from qualifiers | |
273 | * during expansion in sh.dol.c) here. | |
8c95f417 | 274 | */ |
6e37afca | 275 | Char *lap; |
8c95f417 BJ |
276 | |
277 | /* | |
278 | * Parser structure | |
279 | * | |
6e37afca KB |
280 | * Each command is parsed to a tree of command structures and |
281 | * flags are set bottom up during this process, to be propagated down | |
282 | * as needed during the semantics/exeuction pass (sh.sem.c). | |
8c95f417 | 283 | */ |
6e37afca KB |
284 | struct command { |
285 | short t_dtyp; /* Type of node */ | |
286 | #define NODE_COMMAND 1 /* t_dcom <t_dlef >t_drit */ | |
287 | #define NODE_PAREN 2 /* ( t_dspr ) <t_dlef >t_drit */ | |
288 | #define NODE_PIPE 3 /* t_dlef | t_drit */ | |
289 | #define NODE_LIST 4 /* t_dlef ; t_drit */ | |
290 | #define NODE_OR 5 /* t_dlef || t_drit */ | |
291 | #define NODE_AND 6 /* t_dlef && t_drit */ | |
292 | short t_dflg; /* Flags, e.g. F_AMPERSAND|... */ | |
293 | #define F_SAVE (F_NICE|F_TIME|F_NOHUP) /* save these when re-doing */ | |
294 | ||
295 | #define F_AMPERSAND (1<<0) /* executes in background */ | |
296 | #define F_APPEND (1<<1) /* output is redirected >> */ | |
297 | #define F_PIPEIN (1<<2) /* input is a pipe */ | |
298 | #define F_PIPEOUT (1<<3) /* output is a pipe */ | |
299 | #define F_NOFORK (1<<4) /* don't fork, last ()ized cmd */ | |
300 | #define F_NOINTERRUPT (1<<5) /* should be immune from intr's */ | |
301 | /* spare */ | |
302 | #define F_STDERR (1<<7) /* redirect unit 2 with unit 1 */ | |
303 | #define F_OVERWRITE (1<<8) /* output was ! */ | |
304 | #define F_READ (1<<9) /* input redirection is << */ | |
305 | #define F_REPEAT (1<<10) /* reexec aft if, repeat,... */ | |
306 | #define F_NICE (1<<11) /* t_nice is meaningful */ | |
307 | #define F_NOHUP (1<<12) /* nohup this command */ | |
308 | #define F_TIME (1<<13) /* time this command */ | |
309 | union { | |
310 | Char *T_dlef; /* Input redirect word */ | |
311 | struct command *T_dcar; /* Left part of list/pipe */ | |
312 | } L; | |
313 | union { | |
314 | Char *T_drit; /* Output redirect word */ | |
315 | struct command *T_dcdr; /* Right part of list/pipe */ | |
316 | } R; | |
8c95f417 BJ |
317 | #define t_dlef L.T_dlef |
318 | #define t_dcar L.T_dcar | |
319 | #define t_drit R.T_drit | |
320 | #define t_dcdr R.T_dcdr | |
6e37afca KB |
321 | Char **t_dcom; /* Command/argument vector */ |
322 | struct command *t_dspr; /* Pointer to ()'d subtree */ | |
454c2aa3 | 323 | int t_nice; |
8c95f417 BJ |
324 | }; |
325 | ||
6e37afca | 326 | |
454c2aa3 CZ |
327 | /* |
328 | * These are declared here because they want to be | |
329 | * initialized in sh.init.c (to allow them to be made readonly) | |
330 | */ | |
331 | ||
332 | extern struct biltins { | |
333 | char *bname; | |
334 | void (*bfunct) __P((Char **, struct command *)); | |
335 | short minargs, maxargs; | |
336 | } bfunc[]; | |
337 | extern int nbfunc; | |
338 | ||
339 | extern struct srch { | |
340 | char *s_name; | |
341 | short s_value; | |
342 | } srchn[]; | |
343 | extern int nsrchn; | |
344 | ||
6e37afca KB |
345 | /* |
346 | * The keywords for the parser | |
347 | */ | |
289ec3f8 KB |
348 | #define T_BREAK 0 |
349 | #define T_BRKSW 1 | |
350 | #define T_CASE 2 | |
351 | #define T_DEFAULT 3 | |
352 | #define T_ELSE 4 | |
353 | #define T_END 5 | |
354 | #define T_ENDIF 6 | |
355 | #define T_ENDSW 7 | |
356 | #define T_EXIT 8 | |
357 | #define T_FOREACH 9 | |
358 | #define T_GOTO 10 | |
359 | #define T_IF 11 | |
360 | #define T_LABEL 12 | |
361 | #define T_LET 13 | |
362 | #define T_SET 14 | |
363 | #define T_SWITCH 15 | |
364 | #define T_TEST 16 | |
365 | #define T_THEN 17 | |
366 | #define T_WHILE 18 | |
8c95f417 BJ |
367 | |
368 | /* | |
369 | * Structure defining the existing while/foreach loops at this | |
370 | * source level. Loops are implemented by seeking back in the | |
371 | * input. For foreach (fe), the word list is attached here. | |
372 | */ | |
6e37afca | 373 | struct whyle { |
c4a58397 CZ |
374 | struct Ain w_start; /* Point to restart loop */ |
375 | struct Ain w_end; /* End of loop (0 if unknown) */ | |
6e37afca KB |
376 | Char **w_fe, **w_fe0; /* Current/initial wordlist for fe */ |
377 | Char *w_fename; /* Name for fe */ | |
378 | struct whyle *w_next; /* Next (more outer) loop */ | |
379 | } *whyles; | |
8c95f417 BJ |
380 | |
381 | /* | |
382 | * Variable structure | |
383 | * | |
35371dec | 384 | * Aliases and variables are stored in AVL balanced binary trees. |
8c95f417 | 385 | */ |
6e37afca KB |
386 | struct varent { |
387 | Char **vec; /* Array of words which is the value */ | |
388 | Char *v_name; /* Name of variable/alias */ | |
389 | struct varent *v_link[3]; /* The links, see below */ | |
390 | int v_bal; /* Balance factor */ | |
391 | } shvhed, aliases; | |
392 | ||
35371dec EW |
393 | #define v_left v_link[0] |
394 | #define v_right v_link[1] | |
395 | #define v_parent v_link[2] | |
396 | ||
397 | struct varent *adrof1(); | |
6e37afca | 398 | |
35371dec EW |
399 | #define adrof(v) adrof1(v, &shvhed) |
400 | #define value(v) value1(v, &shvhed) | |
8c95f417 BJ |
401 | |
402 | /* | |
403 | * The following are for interfacing redo substitution in | |
404 | * aliases to the lexical routines. | |
405 | */ | |
6e37afca KB |
406 | struct wordent *alhistp; /* Argument list (first) */ |
407 | struct wordent *alhistt; /* Node after last in arg list */ | |
5498b8cd | 408 | Char **alvec, *alvecp; /* The (remnants of) alias vector */ |
8c95f417 BJ |
409 | |
410 | /* | |
411 | * Filename/command name expansion variables | |
412 | */ | |
454c2aa3 | 413 | int gflag; /* After tglob -> is globbing needed? */ |
8c95f417 | 414 | |
6e37afca | 415 | #define MAXVARLEN 30 /* Maximum number of char in a variable name */ |
8c95f417 BJ |
416 | |
417 | /* | |
418 | * Variables for filename expansion | |
419 | */ | |
6e37afca KB |
420 | extern Char **gargv; /* Pointer to the (stack) arglist */ |
421 | extern long gargc; /* Number args in gargv */ | |
8c95f417 BJ |
422 | |
423 | /* | |
424 | * Variables for command expansion. | |
425 | */ | |
6e37afca KB |
426 | extern Char **pargv; /* Pointer to the argv list space */ |
427 | extern long pargc; /* Count of arguments in pargv */ | |
428 | Char *pargs; /* Pointer to start current word */ | |
429 | long pnleft; /* Number of chars left in pargs */ | |
430 | Char *pargcp; /* Current index into pargs */ | |
8c95f417 BJ |
431 | |
432 | /* | |
433 | * History list | |
434 | * | |
435 | * Each history list entry contains an embedded wordlist | |
436 | * from the scanner, a number for the event, and a reference count | |
437 | * to aid in discarding old entries. | |
438 | * | |
439 | * Essentially "invisible" entries are put on the history list | |
440 | * when history substitution includes modifiers, and thrown away | |
441 | * at the next discarding since their event numbers are very negative. | |
442 | */ | |
6e37afca KB |
443 | struct Hist { |
444 | struct wordent Hlex; | |
445 | int Hnum; | |
446 | int Href; | |
6e37afca KB |
447 | struct Hist *Hnext; |
448 | } Histlist; | |
8c95f417 | 449 | |
6e37afca KB |
450 | struct wordent paraml; /* Current lexical word list */ |
451 | int eventno; /* Next events number */ | |
452 | int lastev; /* Last event reference (default) */ | |
8c95f417 | 453 | |
6e37afca KB |
454 | Char HIST; /* history invocation character */ |
455 | Char HISTSUB; /* auto-substitute character */ | |
8c95f417 | 456 | |
35371dec | 457 | /* |
6e37afca | 458 | * strings.h: |
35371dec | 459 | */ |
6e37afca | 460 | #ifndef SHORT_STRINGS |
4d7b2685 KB |
461 | #define Strchr(a, b) strchr(a, b) |
462 | #define Strrchr(a, b) strrchr(a, b) | |
463 | #define Strcat(a, b) strcat(a, b) | |
6e37afca | 464 | #define Strncat(a, b, c) strncat(a, b, c) |
4d7b2685 | 465 | #define Strcpy(a, b) strcpy(a, b) |
6e37afca KB |
466 | #define Strncpy(a, b, c) strncpy(a, b, c) |
467 | #define Strlen(a) strlen(a) | |
468 | #define Strcmp(a, b) strcmp(a, b) | |
469 | #define Strncmp(a, b, c) strncmp(a, b, c) | |
470 | ||
471 | #define Strspl(a, b) strspl(a, b) | |
472 | #define Strsave(a) strsave(a) | |
473 | #define Strend(a) strend(a) | |
474 | #define Strstr(a, b) strstr(a, b) | |
475 | ||
476 | #define str2short(a) (a) | |
477 | #define blk2short(a) saveblk(a) | |
478 | #define short2blk(a) saveblk(a) | |
1bf25f10 | 479 | #define short2str(a) strip(a) |
6e37afca | 480 | #else |
4d7b2685 | 481 | #define Strchr(a, b) s_strchr(a, b) |
6e37afca | 482 | #define Strrchr(a, b) s_strrchr(a, b) |
4d7b2685 | 483 | #define Strcat(a, b) s_strcat(a, b) |
6e37afca | 484 | #define Strncat(a, b, c) s_strncat(a, b, c) |
4d7b2685 | 485 | #define Strcpy(a, b) s_strcpy(a, b) |
6e37afca KB |
486 | #define Strncpy(a, b, c) s_strncpy(a, b, c) |
487 | #define Strlen(a) s_strlen(a) | |
488 | #define Strcmp(a, b) s_strcmp(a, b) | |
489 | #define Strncmp(a, b, c) s_strncmp(a, b, c) | |
490 | ||
491 | #define Strspl(a, b) s_strspl(a, b) | |
492 | #define Strsave(a) s_strsave(a) | |
493 | #define Strend(a) s_strend(a) | |
494 | #define Strstr(a, b) s_strstr(a, b) | |
495 | #endif | |
8c95f417 BJ |
496 | |
497 | /* | |
498 | * setname is a macro to save space (see sh.err.c) | |
499 | */ | |
6e37afca KB |
500 | char *bname; |
501 | ||
35371dec | 502 | #define setname(a) (bname = (a)) |
8c95f417 | 503 | |
6e37afca KB |
504 | Char *Vsav; |
505 | Char *Vdp; | |
506 | Char *Vexpath; | |
507 | char **Vt; | |
508 | ||
6e37afca KB |
509 | Char **evalvec; |
510 | Char *evalp; | |
511 | ||
6e37afca KB |
512 | /* word_chars is set by default to WORD_CHARS but can be overridden by |
513 | the worchars variable--if unset, reverts to WORD_CHARS */ | |
514 | ||
515 | Char *word_chars; | |
516 | ||
517 | #define WORD_CHARS "*?_-.[]~=" /* default chars besides alnums in words */ | |
518 | ||
519 | Char *STR_SHELLPATH; | |
520 | ||
b9c4f741 | 521 | #include <paths.h> |
6e37afca KB |
522 | #ifdef _PATH_BSHELL |
523 | Char *STR_BSHELL; | |
8c95f417 | 524 | #endif |
6e37afca KB |
525 | Char *STR_WORD_CHARS; |
526 | Char **STR_environ; |