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1 | /* $RCSfile: eval.c,v $$Revision: 4.0.1.3 $$Date: 91/11/05 17:15:21 $ |
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2 | * |
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3 | * Copyright (c) 1991, Larry Wall |
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4 | * |
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5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
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7 | * |
8 | * $Log: eval.c,v $ |
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9 | * Revision 4.0.1.3 91/11/05 17:15:21 lwall |
10 | * patch11: prepared for ctype implementations that don't define isascii() |
11 | * patch11: various portability fixes |
12 | * patch11: added sort {} LIST |
13 | * patch11: added eval {} |
14 | * patch11: sysread() in socket was substituting recv() |
15 | * patch11: a last statement outside any block caused occasional core dumps |
16 | * patch11: missing arguments caused core dump in -D8 code |
17 | * patch11: eval 'stuff' now optimized to eval {stuff} |
18 | * |
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19 | * Revision 4.0.1.2 91/06/07 11:07:23 lwall |
20 | * patch4: new copyright notice |
21 | * patch4: length($`), length($&), length($') now optimized to avoid string copy |
22 | * patch4: assignment wasn't correctly de-tainting the assigned variable. |
23 | * patch4: default top-of-form format is now FILEHANDLE_TOP |
24 | * patch4: added $^P variable to control calling of perldb routines |
25 | * patch4: taintchecks could improperly modify parent in vfork() |
26 | * patch4: many, many itty-bitty portability fixes |
27 | * |
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28 | * Revision 4.0.1.1 91/04/11 17:43:48 lwall |
29 | * patch1: fixed failed fork to return undef as documented |
30 | * patch1: reduced maximum branch distance in eval.c |
31 | * |
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32 | * Revision 4.0 91/03/20 01:16:48 lwall |
33 | * 4.0 baseline. |
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34 | * |
35 | */ |
36 | |
37 | #include "EXTERN.h" |
38 | #include "perl.h" |
39 | |
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40 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
378cc40b |
41 | #include <signal.h> |
154e51a4 |
42 | #endif |
378cc40b |
43 | |
b1248f16 |
44 | #ifdef I_FCNTL |
45 | #include <fcntl.h> |
46 | #endif |
fe14fcc3 |
47 | #ifdef I_SYS_FILE |
48 | #include <sys/file.h> |
49 | #endif |
a687059c |
50 | #ifdef I_VFORK |
51 | # include <vfork.h> |
52 | #endif |
53 | |
378cc40b |
54 | #ifdef VOIDSIG |
55 | static void (*ihand)(); |
56 | static void (*qhand)(); |
57 | #else |
58 | static int (*ihand)(); |
59 | static int (*qhand)(); |
60 | #endif |
61 | |
62 | ARG *debarg; |
63 | STR str_args; |
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64 | static STAB *stab2; |
65 | static STIO *stio; |
66 | static struct lstring *lstr; |
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67 | static int old_rschar; |
68 | static int old_rslen; |
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69 | |
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70 | double sin(), cos(), atan2(), pow(); |
71 | |
72 | char *getlogin(); |
73 | |
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74 | int |
75 | eval(arg,gimme,sp) |
378cc40b |
76 | register ARG *arg; |
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77 | int gimme; |
78 | register int sp; |
378cc40b |
79 | { |
80 | register STR *str; |
81 | register int anum; |
82 | register int optype; |
a687059c |
83 | register STR **st; |
378cc40b |
84 | int maxarg; |
378cc40b |
85 | double value; |
378cc40b |
86 | register char *tmps; |
87 | char *tmps2; |
88 | int argflags; |
89 | int argtype; |
90 | union argptr argptr; |
a687059c |
91 | int arglast[8]; /* highest sp for arg--valid only for non-O_LIST args */ |
378cc40b |
92 | unsigned long tmplong; |
93 | long when; |
94 | FILE *fp; |
95 | STR *tmpstr; |
96 | FCMD *form; |
97 | STAB *stab; |
98 | ARRAY *ary; |
99 | bool assigning = FALSE; |
100 | double exp(), log(), sqrt(), modf(); |
101 | char *crypt(), *getenv(); |
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102 | extern void grow_dlevel(); |
378cc40b |
103 | |
104 | if (!arg) |
a687059c |
105 | goto say_undef; |
378cc40b |
106 | optype = arg->arg_type; |
a687059c |
107 | maxarg = arg->arg_len; |
108 | arglast[0] = sp; |
109 | str = arg->arg_ptr.arg_str; |
110 | if (sp + maxarg > stack->ary_max) |
111 | astore(stack, sp + maxarg, Nullstr); |
112 | st = stack->ary_array; |
113 | |
378cc40b |
114 | #ifdef DEBUGGING |
115 | if (debug) { |
116 | if (debug & 8) { |
117 | deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg); |
118 | } |
119 | debname[dlevel] = opname[optype][0]; |
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120 | debdelim[dlevel] = ':'; |
121 | if (++dlevel >= dlmax) |
122 | grow_dlevel(); |
378cc40b |
123 | } |
124 | #endif |
378cc40b |
125 | |
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126 | for (anum = 1; anum <= maxarg; anum++) { |
127 | argflags = arg[anum].arg_flags; |
128 | argtype = arg[anum].arg_type; |
129 | argptr = arg[anum].arg_ptr; |
130 | re_eval: |
131 | switch (argtype) { |
132 | default: |
133 | st[++sp] = &str_undef; |
134 | #ifdef DEBUGGING |
135 | tmps = "NULL"; |
136 | #endif |
137 | break; |
138 | case A_EXPR: |
139 | #ifdef DEBUGGING |
140 | if (debug & 8) { |
141 | tmps = "EXPR"; |
142 | deb("%d.EXPR =>\n",anum); |
143 | } |
144 | #endif |
145 | sp = eval(argptr.arg_arg, |
146 | (argflags & AF_ARYOK) ? G_ARRAY : G_SCALAR, sp); |
147 | if (sp + (maxarg - anum) > stack->ary_max) |
148 | astore(stack, sp + (maxarg - anum), Nullstr); |
149 | st = stack->ary_array; /* possibly reallocated */ |
150 | break; |
151 | case A_CMD: |
152 | #ifdef DEBUGGING |
153 | if (debug & 8) { |
154 | tmps = "CMD"; |
155 | deb("%d.CMD (%lx) =>\n",anum,argptr.arg_cmd); |
156 | } |
157 | #endif |
158 | sp = cmd_exec(argptr.arg_cmd, gimme, sp); |
159 | if (sp + (maxarg - anum) > stack->ary_max) |
160 | astore(stack, sp + (maxarg - anum), Nullstr); |
161 | st = stack->ary_array; /* possibly reallocated */ |
162 | break; |
163 | case A_LARYSTAB: |
164 | ++sp; |
165 | switch (optype) { |
166 | case O_ITEM2: argtype = 2; break; |
167 | case O_ITEM3: argtype = 3; break; |
168 | default: argtype = anum; break; |
169 | } |
170 | str = afetch(stab_array(argptr.arg_stab), |
171 | arg[argtype].arg_len - arybase, TRUE); |
172 | #ifdef DEBUGGING |
173 | if (debug & 8) { |
174 | (void)sprintf(buf,"LARYSTAB $%s[%d]",stab_name(argptr.arg_stab), |
175 | arg[argtype].arg_len); |
176 | tmps = buf; |
177 | } |
178 | #endif |
179 | goto do_crement; |
180 | case A_ARYSTAB: |
181 | switch (optype) { |
182 | case O_ITEM2: argtype = 2; break; |
183 | case O_ITEM3: argtype = 3; break; |
184 | default: argtype = anum; break; |
185 | } |
186 | st[++sp] = afetch(stab_array(argptr.arg_stab), |
187 | arg[argtype].arg_len - arybase, FALSE); |
188 | #ifdef DEBUGGING |
189 | if (debug & 8) { |
190 | (void)sprintf(buf,"ARYSTAB $%s[%d]",stab_name(argptr.arg_stab), |
191 | arg[argtype].arg_len); |
192 | tmps = buf; |
193 | } |
194 | #endif |
195 | break; |
196 | case A_STAR: |
197 | stab = argptr.arg_stab; |
198 | st[++sp] = (STR*)stab; |
199 | if (!stab_xarray(stab)) |
200 | aadd(stab); |
201 | if (!stab_xhash(stab)) |
202 | hadd(stab); |
203 | if (!stab_io(stab)) |
204 | stab_io(stab) = stio_new(); |
205 | #ifdef DEBUGGING |
206 | if (debug & 8) { |
207 | (void)sprintf(buf,"STAR *%s",stab_name(argptr.arg_stab)); |
208 | tmps = buf; |
209 | } |
210 | #endif |
211 | break; |
212 | case A_LSTAR: |
213 | str = st[++sp] = (STR*)argptr.arg_stab; |
214 | #ifdef DEBUGGING |
215 | if (debug & 8) { |
216 | (void)sprintf(buf,"LSTAR *%s",stab_name(argptr.arg_stab)); |
217 | tmps = buf; |
218 | } |
219 | #endif |
220 | break; |
221 | case A_STAB: |
222 | st[++sp] = STAB_STR(argptr.arg_stab); |
223 | #ifdef DEBUGGING |
224 | if (debug & 8) { |
225 | (void)sprintf(buf,"STAB $%s",stab_name(argptr.arg_stab)); |
226 | tmps = buf; |
227 | } |
228 | #endif |
229 | break; |
6e21c824 |
230 | case A_LENSTAB: |
231 | str_numset(str, (double)STAB_LEN(argptr.arg_stab)); |
232 | st[++sp] = str; |
233 | #ifdef DEBUGGING |
234 | if (debug & 8) { |
235 | (void)sprintf(buf,"LENSTAB $%s",stab_name(argptr.arg_stab)); |
236 | tmps = buf; |
237 | } |
238 | #endif |
239 | break; |
fe14fcc3 |
240 | case A_LEXPR: |
241 | #ifdef DEBUGGING |
242 | if (debug & 8) { |
243 | tmps = "LEXPR"; |
244 | deb("%d.LEXPR =>\n",anum); |
245 | } |
246 | #endif |
247 | if (argflags & AF_ARYOK) { |
248 | sp = eval(argptr.arg_arg, G_ARRAY, sp); |
249 | if (sp + (maxarg - anum) > stack->ary_max) |
250 | astore(stack, sp + (maxarg - anum), Nullstr); |
251 | st = stack->ary_array; /* possibly reallocated */ |
252 | } |
253 | else { |
254 | sp = eval(argptr.arg_arg, G_SCALAR, sp); |
255 | st = stack->ary_array; /* possibly reallocated */ |
256 | str = st[sp]; |
257 | goto do_crement; |
258 | } |
259 | break; |
260 | case A_LVAL: |
261 | #ifdef DEBUGGING |
262 | if (debug & 8) { |
263 | (void)sprintf(buf,"LVAL $%s",stab_name(argptr.arg_stab)); |
264 | tmps = buf; |
265 | } |
266 | #endif |
267 | ++sp; |
268 | str = STAB_STR(argptr.arg_stab); |
269 | if (!str) |
270 | fatal("panic: A_LVAL"); |
271 | do_crement: |
272 | assigning = TRUE; |
273 | if (argflags & AF_PRE) { |
274 | if (argflags & AF_UP) |
275 | str_inc(str); |
276 | else |
277 | str_dec(str); |
278 | STABSET(str); |
279 | st[sp] = str; |
280 | str = arg->arg_ptr.arg_str; |
281 | } |
282 | else if (argflags & AF_POST) { |
283 | st[sp] = str_mortal(str); |
284 | if (argflags & AF_UP) |
285 | str_inc(str); |
286 | else |
287 | str_dec(str); |
288 | STABSET(str); |
289 | str = arg->arg_ptr.arg_str; |
290 | } |
291 | else |
292 | st[sp] = str; |
293 | break; |
294 | case A_LARYLEN: |
295 | ++sp; |
296 | stab = argptr.arg_stab; |
297 | str = stab_array(argptr.arg_stab)->ary_magic; |
298 | if (optype != O_SASSIGN || argflags & (AF_PRE|AF_POST)) |
299 | str_numset(str,(double)(stab_array(stab)->ary_fill+arybase)); |
300 | #ifdef DEBUGGING |
301 | tmps = "LARYLEN"; |
302 | #endif |
303 | if (!str) |
304 | fatal("panic: A_LEXPR"); |
305 | goto do_crement; |
306 | case A_ARYLEN: |
307 | stab = argptr.arg_stab; |
308 | st[++sp] = stab_array(stab)->ary_magic; |
309 | str_numset(st[sp],(double)(stab_array(stab)->ary_fill+arybase)); |
310 | #ifdef DEBUGGING |
311 | tmps = "ARYLEN"; |
312 | #endif |
313 | break; |
314 | case A_SINGLE: |
315 | st[++sp] = argptr.arg_str; |
316 | #ifdef DEBUGGING |
317 | tmps = "SINGLE"; |
318 | #endif |
319 | break; |
320 | case A_DOUBLE: |
321 | (void) interp(str,argptr.arg_str,sp); |
322 | st = stack->ary_array; |
323 | st[++sp] = str; |
324 | #ifdef DEBUGGING |
325 | tmps = "DOUBLE"; |
326 | #endif |
327 | break; |
328 | case A_BACKTICK: |
329 | tmps = str_get(interp(str,argptr.arg_str,sp)); |
330 | st = stack->ary_array; |
331 | #ifdef TAINT |
332 | taintproper("Insecure dependency in ``"); |
333 | #endif |
334 | fp = mypopen(tmps,"r"); |
335 | str_set(str,""); |
336 | if (fp) { |
337 | if (gimme == G_SCALAR) { |
338 | while (str_gets(str,fp,str->str_cur) != Nullch) |
99b89507 |
339 | /*SUPPRESS 530*/ |
fe14fcc3 |
340 | ; |
341 | } |
342 | else { |
343 | for (;;) { |
344 | if (++sp > stack->ary_max) { |
345 | astore(stack, sp, Nullstr); |
346 | st = stack->ary_array; |
347 | } |
348 | str = st[sp] = Str_new(56,80); |
349 | if (str_gets(str,fp,0) == Nullch) { |
350 | sp--; |
351 | break; |
352 | } |
353 | if (str->str_len - str->str_cur > 20) { |
354 | str->str_len = str->str_cur+1; |
355 | Renew(str->str_ptr, str->str_len, char); |
356 | } |
357 | str_2mortal(str); |
358 | } |
359 | } |
360 | statusvalue = mypclose(fp); |
361 | } |
362 | else |
363 | statusvalue = -1; |
364 | |
365 | if (gimme == G_SCALAR) |
366 | st[++sp] = str; |
367 | #ifdef DEBUGGING |
368 | tmps = "BACK"; |
369 | #endif |
370 | break; |
371 | case A_WANTARRAY: |
372 | { |
373 | if (curcsv->wantarray == G_ARRAY) |
374 | st[++sp] = &str_yes; |
375 | else |
376 | st[++sp] = &str_no; |
377 | } |
378 | #ifdef DEBUGGING |
379 | tmps = "WANTARRAY"; |
380 | #endif |
381 | break; |
382 | case A_INDREAD: |
383 | last_in_stab = stabent(str_get(STAB_STR(argptr.arg_stab)),TRUE); |
384 | old_rschar = rschar; |
385 | old_rslen = rslen; |
386 | goto do_read; |
387 | case A_GLOB: |
388 | argflags |= AF_POST; /* enable newline chopping */ |
389 | last_in_stab = argptr.arg_stab; |
390 | old_rschar = rschar; |
391 | old_rslen = rslen; |
392 | rslen = 1; |
393 | #ifdef MSDOS |
394 | rschar = 0; |
395 | #else |
396 | #ifdef CSH |
397 | rschar = 0; |
398 | #else |
399 | rschar = '\n'; |
400 | #endif /* !CSH */ |
401 | #endif /* !MSDOS */ |
402 | goto do_read; |
403 | case A_READ: |
404 | last_in_stab = argptr.arg_stab; |
405 | old_rschar = rschar; |
406 | old_rslen = rslen; |
407 | do_read: |
408 | if (anum > 1) /* assign to scalar */ |
409 | gimme = G_SCALAR; /* force context to scalar */ |
410 | if (gimme == G_ARRAY) |
411 | str = Str_new(57,0); |
412 | ++sp; |
413 | fp = Nullfp; |
414 | if (stab_io(last_in_stab)) { |
415 | fp = stab_io(last_in_stab)->ifp; |
416 | if (!fp) { |
417 | if (stab_io(last_in_stab)->flags & IOF_ARGV) { |
418 | if (stab_io(last_in_stab)->flags & IOF_START) { |
419 | stab_io(last_in_stab)->flags &= ~IOF_START; |
420 | stab_io(last_in_stab)->lines = 0; |
421 | if (alen(stab_array(last_in_stab)) < 0) { |
422 | tmpstr = str_make("-",1); /* assume stdin */ |
423 | (void)apush(stab_array(last_in_stab), tmpstr); |
424 | } |
425 | } |
426 | fp = nextargv(last_in_stab); |
427 | if (!fp) { /* Note: fp != stab_io(last_in_stab)->ifp */ |
428 | (void)do_close(last_in_stab,FALSE); /* now it does*/ |
429 | stab_io(last_in_stab)->flags |= IOF_START; |
430 | } |
431 | } |
432 | else if (argtype == A_GLOB) { |
433 | (void) interp(str,stab_val(last_in_stab),sp); |
434 | st = stack->ary_array; |
435 | tmpstr = Str_new(55,0); |
436 | #ifdef MSDOS |
437 | str_set(tmpstr, "perlglob "); |
438 | str_scat(tmpstr,str); |
439 | str_cat(tmpstr," |"); |
440 | #else |
441 | #ifdef CSH |
442 | str_nset(tmpstr,cshname,cshlen); |
443 | str_cat(tmpstr," -cf 'set nonomatch; glob "); |
444 | str_scat(tmpstr,str); |
445 | str_cat(tmpstr,"'|"); |
446 | #else |
447 | str_set(tmpstr, "echo "); |
448 | str_scat(tmpstr,str); |
449 | str_cat(tmpstr, |
450 | "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
451 | #endif /* !CSH */ |
452 | #endif /* !MSDOS */ |
453 | (void)do_open(last_in_stab,tmpstr->str_ptr, |
454 | tmpstr->str_cur); |
455 | fp = stab_io(last_in_stab)->ifp; |
456 | str_free(tmpstr); |
457 | } |
458 | } |
459 | } |
460 | if (!fp && dowarn) |
461 | warn("Read on closed filehandle <%s>",stab_name(last_in_stab)); |
462 | when = str->str_len; /* remember if already alloced */ |
463 | if (!when) |
464 | Str_Grow(str,80); /* try short-buffering it */ |
465 | keepgoing: |
466 | if (!fp) |
467 | st[sp] = &str_undef; |
468 | else if (!str_gets(str,fp, optype == O_RCAT ? str->str_cur : 0)) { |
469 | clearerr(fp); |
470 | if (stab_io(last_in_stab)->flags & IOF_ARGV) { |
471 | fp = nextargv(last_in_stab); |
472 | if (fp) |
473 | goto keepgoing; |
474 | (void)do_close(last_in_stab,FALSE); |
475 | stab_io(last_in_stab)->flags |= IOF_START; |
476 | } |
477 | else if (argflags & AF_POST) { |
478 | (void)do_close(last_in_stab,FALSE); |
479 | } |
480 | st[sp] = &str_undef; |
481 | rschar = old_rschar; |
482 | rslen = old_rslen; |
483 | if (gimme == G_ARRAY) { |
484 | --sp; |
485 | str_2mortal(str); |
486 | goto array_return; |
487 | } |
488 | break; |
489 | } |
490 | else { |
491 | stab_io(last_in_stab)->lines++; |
492 | st[sp] = str; |
493 | #ifdef TAINT |
494 | str->str_tainted = 1; /* Anything from the outside world...*/ |
495 | #endif |
496 | if (argflags & AF_POST) { |
497 | if (str->str_cur > 0) |
498 | str->str_cur--; |
499 | if (str->str_ptr[str->str_cur] == rschar) |
500 | str->str_ptr[str->str_cur] = '\0'; |
501 | else |
502 | str->str_cur++; |
503 | for (tmps = str->str_ptr; *tmps; tmps++) |
99b89507 |
504 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
fe14fcc3 |
505 | index("$&*(){}[]'\";\\|?<>~`",*tmps)) |
506 | break; |
507 | if (*tmps && stat(str->str_ptr,&statbuf) < 0) |
508 | goto keepgoing; /* unmatched wildcard? */ |
509 | } |
510 | if (gimme == G_ARRAY) { |
511 | if (str->str_len - str->str_cur > 20) { |
512 | str->str_len = str->str_cur+1; |
513 | Renew(str->str_ptr, str->str_len, char); |
514 | } |
515 | str_2mortal(str); |
516 | if (++sp > stack->ary_max) { |
517 | astore(stack, sp, Nullstr); |
518 | st = stack->ary_array; |
519 | } |
520 | str = Str_new(58,80); |
521 | goto keepgoing; |
522 | } |
523 | else if (!when && str->str_len - str->str_cur > 80) { |
524 | /* try to reclaim a bit of scalar space on 1st alloc */ |
525 | if (str->str_cur < 60) |
526 | str->str_len = 80; |
527 | else |
528 | str->str_len = str->str_cur+40; /* allow some slop */ |
529 | Renew(str->str_ptr, str->str_len, char); |
530 | } |
531 | } |
532 | rschar = old_rschar; |
533 | rslen = old_rslen; |
534 | #ifdef DEBUGGING |
535 | tmps = "READ"; |
536 | #endif |
537 | break; |
538 | } |
539 | #ifdef DEBUGGING |
540 | if (debug & 8) |
541 | deb("%d.%s = '%s'\n",anum,tmps,str_peek(st[sp])); |
542 | #endif |
543 | if (anum < 8) |
544 | arglast[anum] = sp; |
545 | } |
a687059c |
546 | |
547 | st += arglast[0]; |
fe14fcc3 |
548 | #ifdef SMALLSWITCHES |
549 | if (optype < O_CHOWN) |
550 | #endif |
378cc40b |
551 | switch (optype) { |
a687059c |
552 | case O_RCAT: |
553 | STABSET(str); |
554 | break; |
378cc40b |
555 | case O_ITEM: |
a687059c |
556 | if (gimme == G_ARRAY) |
378cc40b |
557 | goto array_return; |
c2ab57d4 |
558 | /* FALL THROUGH */ |
559 | case O_SCALAR: |
a687059c |
560 | STR_SSET(str,st[1]); |
378cc40b |
561 | STABSET(str); |
562 | break; |
563 | case O_ITEM2: |
a687059c |
564 | if (gimme == G_ARRAY) |
565 | goto array_return; |
566 | --anum; |
567 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
378cc40b |
568 | STABSET(str); |
569 | break; |
570 | case O_ITEM3: |
a687059c |
571 | if (gimme == G_ARRAY) |
572 | goto array_return; |
573 | --anum; |
574 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
378cc40b |
575 | STABSET(str); |
576 | break; |
577 | case O_CONCAT: |
a687059c |
578 | STR_SSET(str,st[1]); |
579 | str_scat(str,st[2]); |
378cc40b |
580 | STABSET(str); |
581 | break; |
582 | case O_REPEAT: |
fe14fcc3 |
583 | if (gimme == G_ARRAY && arg[1].arg_flags & AF_ARYOK) { |
584 | sp = do_repeatary(arglast); |
585 | goto array_return; |
586 | } |
587 | STR_SSET(str,st[arglast[1] - arglast[0]]); |
588 | anum = (int)str_gnum(st[arglast[2] - arglast[0]]); |
378cc40b |
589 | if (anum >= 1) { |
afd9f252 |
590 | tmpstr = Str_new(50, 0); |
fe14fcc3 |
591 | tmps = str_get(str); |
592 | str_nset(tmpstr,tmps,str->str_cur); |
afd9f252 |
593 | tmps = str_get(tmpstr); /* force to be string */ |
594 | STR_GROW(str, (anum * str->str_cur) + 1); |
595 | repeatcpy(str->str_ptr, tmps, tmpstr->str_cur, anum); |
79a0689e |
596 | str->str_cur *= anum; |
597 | str->str_ptr[str->str_cur] = '\0'; |
fe14fcc3 |
598 | str->str_nok = 0; |
599 | str_free(tmpstr); |
378cc40b |
600 | } |
601 | else |
602 | str_sset(str,&str_no); |
603 | STABSET(str); |
604 | break; |
605 | case O_MATCH: |
a687059c |
606 | sp = do_match(str,arg, |
607 | gimme,arglast); |
608 | if (gimme == G_ARRAY) |
378cc40b |
609 | goto array_return; |
378cc40b |
610 | STABSET(str); |
611 | break; |
612 | case O_NMATCH: |
a687059c |
613 | sp = do_match(str,arg, |
afd9f252 |
614 | G_SCALAR,arglast); |
a687059c |
615 | str_sset(str, str_true(str) ? &str_no : &str_yes); |
378cc40b |
616 | STABSET(str); |
617 | break; |
618 | case O_SUBST: |
a687059c |
619 | sp = do_subst(str,arg,arglast[0]); |
620 | goto array_return; |
378cc40b |
621 | case O_NSUBST: |
a687059c |
622 | sp = do_subst(str,arg,arglast[0]); |
378cc40b |
623 | str = arg->arg_ptr.arg_str; |
a687059c |
624 | str_set(str, str_true(str) ? No : Yes); |
625 | goto array_return; |
378cc40b |
626 | case O_ASSIGN: |
a687059c |
627 | if (arg[1].arg_flags & AF_ARYOK) { |
628 | if (arg->arg_len == 1) { |
629 | arg->arg_type = O_LOCAL; |
a687059c |
630 | goto local; |
631 | } |
632 | else { |
633 | arg->arg_type = O_AASSIGN; |
634 | goto aassign; |
635 | } |
636 | } |
378cc40b |
637 | else { |
a687059c |
638 | arg->arg_type = O_SASSIGN; |
639 | goto sassign; |
378cc40b |
640 | } |
a687059c |
641 | case O_LOCAL: |
642 | local: |
643 | arglast[2] = arglast[1]; /* push a null array */ |
644 | /* FALL THROUGH */ |
645 | case O_AASSIGN: |
646 | aassign: |
647 | sp = do_assign(arg, |
648 | gimme,arglast); |
649 | goto array_return; |
650 | case O_SASSIGN: |
651 | sassign: |
6e21c824 |
652 | #ifdef TAINT |
653 | if (tainted && !st[2]->str_tainted) |
654 | tainted = 0; |
655 | #endif |
a687059c |
656 | STR_SSET(str, st[2]); |
657 | STABSET(str); |
378cc40b |
658 | break; |
659 | case O_CHOP: |
a687059c |
660 | st -= arglast[0]; |
378cc40b |
661 | str = arg->arg_ptr.arg_str; |
a687059c |
662 | for (sp = arglast[0] + 1; sp <= arglast[1]; sp++) |
663 | do_chop(str,st[sp]); |
664 | st += arglast[0]; |
378cc40b |
665 | break; |
a687059c |
666 | case O_DEFINED: |
667 | if (arg[1].arg_type & A_DONT) { |
668 | sp = do_defined(str,arg, |
669 | gimme,arglast); |
670 | goto array_return; |
671 | } |
672 | else if (str->str_pok || str->str_nok) |
673 | goto say_yes; |
674 | goto say_no; |
675 | case O_UNDEF: |
676 | if (arg[1].arg_type & A_DONT) { |
677 | sp = do_undef(str,arg, |
678 | gimme,arglast); |
679 | goto array_return; |
680 | } |
681 | else if (str != stab_val(defstab)) { |
fe14fcc3 |
682 | if (str->str_len) { |
683 | if (str->str_state == SS_INCR) |
684 | Str_Grow(str,0); |
685 | Safefree(str->str_ptr); |
686 | str->str_ptr = Nullch; |
687 | str->str_len = 0; |
688 | } |
a687059c |
689 | str->str_pok = str->str_nok = 0; |
690 | STABSET(str); |
691 | } |
692 | goto say_undef; |
378cc40b |
693 | case O_STUDY: |
a687059c |
694 | sp = do_study(str,arg, |
695 | gimme,arglast); |
696 | goto array_return; |
697 | case O_POW: |
698 | value = str_gnum(st[1]); |
699 | value = pow(value,str_gnum(st[2])); |
378cc40b |
700 | goto donumset; |
701 | case O_MULTIPLY: |
a687059c |
702 | value = str_gnum(st[1]); |
703 | value *= str_gnum(st[2]); |
378cc40b |
704 | goto donumset; |
705 | case O_DIVIDE: |
fe14fcc3 |
706 | if ((value = str_gnum(st[2])) == 0.0) |
707 | fatal("Illegal division by zero"); |
99b89507 |
708 | #ifdef SLOPPYDIVIDE |
fe14fcc3 |
709 | /* insure that 20./5. == 4. */ |
710 | { |
711 | double x; |
712 | int k; |
713 | x = str_gnum(st[1]); |
714 | if ((double)(int)x == x && |
715 | (double)(int)value == value && |
716 | (k = (int)x/(int)value)*(int)value == (int)x) { |
717 | value = k; |
718 | } else { |
719 | value = x/value; |
720 | } |
721 | } |
722 | #else |
a687059c |
723 | value = str_gnum(st[1]) / value; |
fe14fcc3 |
724 | #endif |
378cc40b |
725 | goto donumset; |
726 | case O_MODULO: |
a687059c |
727 | tmplong = (long) str_gnum(st[2]); |
728 | if (tmplong == 0L) |
378cc40b |
729 | fatal("Illegal modulus zero"); |
a687059c |
730 | when = (long)str_gnum(st[1]); |
731 | #ifndef lint |
732 | if (when >= 0) |
733 | value = (double)(when % tmplong); |
734 | else |
154e51a4 |
735 | value = (double)(tmplong - ((-when - 1) % tmplong)) - 1; |
a687059c |
736 | #endif |
378cc40b |
737 | goto donumset; |
738 | case O_ADD: |
a687059c |
739 | value = str_gnum(st[1]); |
740 | value += str_gnum(st[2]); |
378cc40b |
741 | goto donumset; |
742 | case O_SUBTRACT: |
a687059c |
743 | value = str_gnum(st[1]); |
744 | value -= str_gnum(st[2]); |
378cc40b |
745 | goto donumset; |
746 | case O_LEFT_SHIFT: |
a687059c |
747 | value = str_gnum(st[1]); |
748 | anum = (int)str_gnum(st[2]); |
749 | #ifndef lint |
b1248f16 |
750 | value = (double)(U_L(value) << anum); |
a687059c |
751 | #endif |
378cc40b |
752 | goto donumset; |
753 | case O_RIGHT_SHIFT: |
a687059c |
754 | value = str_gnum(st[1]); |
755 | anum = (int)str_gnum(st[2]); |
756 | #ifndef lint |
b1248f16 |
757 | value = (double)(U_L(value) >> anum); |
a687059c |
758 | #endif |
378cc40b |
759 | goto donumset; |
760 | case O_LT: |
a687059c |
761 | value = str_gnum(st[1]); |
762 | value = (value < str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
763 | goto donumset; |
764 | case O_GT: |
a687059c |
765 | value = str_gnum(st[1]); |
766 | value = (value > str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
767 | goto donumset; |
768 | case O_LE: |
a687059c |
769 | value = str_gnum(st[1]); |
770 | value = (value <= str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
771 | goto donumset; |
772 | case O_GE: |
a687059c |
773 | value = str_gnum(st[1]); |
774 | value = (value >= str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
775 | goto donumset; |
776 | case O_EQ: |
a687059c |
777 | if (dowarn) { |
778 | if ((!st[1]->str_nok && !looks_like_number(st[1])) || |
779 | (!st[2]->str_nok && !looks_like_number(st[2])) ) |
780 | warn("Possible use of == on string value"); |
781 | } |
782 | value = str_gnum(st[1]); |
783 | value = (value == str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
784 | goto donumset; |
785 | case O_NE: |
a687059c |
786 | value = str_gnum(st[1]); |
787 | value = (value != str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
788 | goto donumset; |
c2ab57d4 |
789 | case O_NCMP: |
790 | value = str_gnum(st[1]); |
791 | value -= str_gnum(st[2]); |
792 | if (value > 0.0) |
793 | value = 1.0; |
794 | else if (value < 0.0) |
795 | value = -1.0; |
796 | goto donumset; |
378cc40b |
797 | case O_BIT_AND: |
a687059c |
798 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
799 | value = str_gnum(st[1]); |
800 | #ifndef lint |
b1248f16 |
801 | value = (double)(U_L(value) & U_L(str_gnum(st[2]))); |
a687059c |
802 | #endif |
803 | goto donumset; |
804 | } |
805 | else |
806 | do_vop(optype,str,st[1],st[2]); |
807 | break; |
378cc40b |
808 | case O_XOR: |
a687059c |
809 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
810 | value = str_gnum(st[1]); |
811 | #ifndef lint |
b1248f16 |
812 | value = (double)(U_L(value) ^ U_L(str_gnum(st[2]))); |
a687059c |
813 | #endif |
814 | goto donumset; |
815 | } |
816 | else |
817 | do_vop(optype,str,st[1],st[2]); |
818 | break; |
378cc40b |
819 | case O_BIT_OR: |
a687059c |
820 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
821 | value = str_gnum(st[1]); |
822 | #ifndef lint |
b1248f16 |
823 | value = (double)(U_L(value) | U_L(str_gnum(st[2]))); |
a687059c |
824 | #endif |
825 | goto donumset; |
826 | } |
827 | else |
828 | do_vop(optype,str,st[1],st[2]); |
829 | break; |
830 | /* use register in evaluating str_true() */ |
378cc40b |
831 | case O_AND: |
a687059c |
832 | if (str_true(st[1])) { |
378cc40b |
833 | anum = 2; |
834 | optype = O_ITEM2; |
835 | argflags = arg[anum].arg_flags; |
a687059c |
836 | if (gimme == G_ARRAY) |
837 | argflags |= AF_ARYOK; |
838 | argtype = arg[anum].arg_type & A_MASK; |
378cc40b |
839 | argptr = arg[anum].arg_ptr; |
840 | maxarg = anum = 1; |
a687059c |
841 | sp = arglast[0]; |
842 | st -= sp; |
378cc40b |
843 | goto re_eval; |
844 | } |
845 | else { |
846 | if (assigning) { |
a687059c |
847 | str_sset(str, st[1]); |
378cc40b |
848 | STABSET(str); |
849 | } |
850 | else |
a687059c |
851 | str = st[1]; |
378cc40b |
852 | break; |
853 | } |
854 | case O_OR: |
a687059c |
855 | if (str_true(st[1])) { |
378cc40b |
856 | if (assigning) { |
a687059c |
857 | str_sset(str, st[1]); |
378cc40b |
858 | STABSET(str); |
859 | } |
860 | else |
a687059c |
861 | str = st[1]; |
378cc40b |
862 | break; |
863 | } |
864 | else { |
865 | anum = 2; |
866 | optype = O_ITEM2; |
867 | argflags = arg[anum].arg_flags; |
a687059c |
868 | if (gimme == G_ARRAY) |
869 | argflags |= AF_ARYOK; |
870 | argtype = arg[anum].arg_type & A_MASK; |
378cc40b |
871 | argptr = arg[anum].arg_ptr; |
872 | maxarg = anum = 1; |
a687059c |
873 | sp = arglast[0]; |
874 | st -= sp; |
378cc40b |
875 | goto re_eval; |
876 | } |
877 | case O_COND_EXPR: |
a687059c |
878 | anum = (str_true(st[1]) ? 2 : 3); |
378cc40b |
879 | optype = (anum == 2 ? O_ITEM2 : O_ITEM3); |
880 | argflags = arg[anum].arg_flags; |
a687059c |
881 | if (gimme == G_ARRAY) |
882 | argflags |= AF_ARYOK; |
883 | argtype = arg[anum].arg_type & A_MASK; |
378cc40b |
884 | argptr = arg[anum].arg_ptr; |
885 | maxarg = anum = 1; |
a687059c |
886 | sp = arglast[0]; |
887 | st -= sp; |
378cc40b |
888 | goto re_eval; |
889 | case O_COMMA: |
a687059c |
890 | if (gimme == G_ARRAY) |
891 | goto array_return; |
892 | str = st[2]; |
378cc40b |
893 | break; |
894 | case O_NEGATE: |
a687059c |
895 | value = -str_gnum(st[1]); |
378cc40b |
896 | goto donumset; |
897 | case O_NOT: |
99b89507 |
898 | #ifdef NOTNOT |
899 | { char xxx = str_true(st[1]); value = (double) !xxx; } |
900 | #else |
a687059c |
901 | value = (double) !str_true(st[1]); |
99b89507 |
902 | #endif |
378cc40b |
903 | goto donumset; |
904 | case O_COMPLEMENT: |
154e51a4 |
905 | if (!sawvec || st[1]->str_nok) { |
a687059c |
906 | #ifndef lint |
154e51a4 |
907 | value = (double) ~U_L(str_gnum(st[1])); |
a687059c |
908 | #endif |
154e51a4 |
909 | goto donumset; |
910 | } |
911 | else { |
912 | STR_SSET(str,st[1]); |
913 | tmps = str_get(str); |
c2ab57d4 |
914 | for (anum = str->str_cur; anum; anum--, tmps++) |
154e51a4 |
915 | *tmps = ~*tmps; |
916 | } |
917 | break; |
378cc40b |
918 | case O_SELECT: |
c2ab57d4 |
919 | stab_fullname(str,defoutstab); |
a687059c |
920 | if (maxarg > 0) { |
921 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
922 | defoutstab = arg[1].arg_ptr.arg_stab; |
923 | else |
924 | defoutstab = stabent(str_get(st[1]),TRUE); |
925 | if (!stab_io(defoutstab)) |
926 | stab_io(defoutstab) = stio_new(); |
927 | curoutstab = defoutstab; |
928 | } |
378cc40b |
929 | STABSET(str); |
930 | break; |
931 | case O_WRITE: |
932 | if (maxarg == 0) |
933 | stab = defoutstab; |
a687059c |
934 | else if ((arg[1].arg_type & A_MASK) == A_WORD) { |
935 | if (!(stab = arg[1].arg_ptr.arg_stab)) |
936 | stab = defoutstab; |
937 | } |
378cc40b |
938 | else |
a687059c |
939 | stab = stabent(str_get(st[1]),TRUE); |
940 | if (!stab_io(stab)) { |
378cc40b |
941 | str_set(str, No); |
942 | STABSET(str); |
943 | break; |
944 | } |
945 | curoutstab = stab; |
a687059c |
946 | fp = stab_io(stab)->ofp; |
378cc40b |
947 | debarg = arg; |
a687059c |
948 | if (stab_io(stab)->fmt_stab) |
949 | form = stab_form(stab_io(stab)->fmt_stab); |
378cc40b |
950 | else |
a687059c |
951 | form = stab_form(stab); |
378cc40b |
952 | if (!form || !fp) { |
a687059c |
953 | if (dowarn) { |
954 | if (form) |
955 | warn("No format for filehandle"); |
956 | else { |
957 | if (stab_io(stab)->ifp) |
958 | warn("Filehandle only opened for input"); |
959 | else |
960 | warn("Write on closed filehandle"); |
961 | } |
962 | } |
378cc40b |
963 | str_set(str, No); |
964 | STABSET(str); |
965 | break; |
966 | } |
a687059c |
967 | format(&outrec,form,sp); |
6e21c824 |
968 | do_write(&outrec,stab,sp); |
a687059c |
969 | if (stab_io(stab)->flags & IOF_FLUSH) |
970 | (void)fflush(fp); |
378cc40b |
971 | str_set(str, Yes); |
972 | STABSET(str); |
973 | break; |
a687059c |
974 | case O_DBMOPEN: |
975 | #ifdef SOME_DBM |
fe14fcc3 |
976 | anum = arg[1].arg_type & A_MASK; |
977 | if (anum == A_WORD || anum == A_STAB) |
978 | stab = arg[1].arg_ptr.arg_stab; |
979 | else |
980 | stab = stabent(str_get(st[1]),TRUE); |
154e51a4 |
981 | if (st[3]->str_nok || st[3]->str_pok) |
982 | anum = (int)str_gnum(st[3]); |
a687059c |
983 | else |
154e51a4 |
984 | anum = -1; |
a687059c |
985 | value = (double)hdbmopen(stab_hash(stab),str_get(st[2]),anum); |
986 | goto donumset; |
987 | #else |
988 | fatal("No dbm or ndbm on this machine"); |
989 | #endif |
990 | case O_DBMCLOSE: |
991 | #ifdef SOME_DBM |
fe14fcc3 |
992 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
993 | stab = arg[1].arg_ptr.arg_stab; |
994 | else |
995 | stab = stabent(str_get(st[1]),TRUE); |
a687059c |
996 | hdbmclose(stab_hash(stab)); |
997 | goto say_yes; |
998 | #else |
999 | fatal("No dbm or ndbm on this machine"); |
1000 | #endif |
378cc40b |
1001 | case O_OPEN: |
a687059c |
1002 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
1003 | stab = arg[1].arg_ptr.arg_stab; |
1004 | else |
a687059c |
1005 | stab = stabent(str_get(st[1]),TRUE); |
afd9f252 |
1006 | tmps = str_get(st[2]); |
1007 | if (do_open(stab,tmps,st[2]->str_cur)) { |
378cc40b |
1008 | value = (double)forkprocess; |
a687059c |
1009 | stab_io(stab)->lines = 0; |
378cc40b |
1010 | goto donumset; |
1011 | } |
afd9f252 |
1012 | else if (forkprocess == 0) /* we are a new child */ |
1013 | goto say_zero; |
378cc40b |
1014 | else |
a687059c |
1015 | goto say_undef; |
154e51a4 |
1016 | /* break; */ |
378cc40b |
1017 | case O_TRANS: |
1018 | value = (double) do_trans(str,arg); |
1019 | str = arg->arg_ptr.arg_str; |
1020 | goto donumset; |
1021 | case O_NTRANS: |
1022 | str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No); |
1023 | str = arg->arg_ptr.arg_str; |
1024 | break; |
1025 | case O_CLOSE: |
a687059c |
1026 | if (maxarg == 0) |
1027 | stab = defoutstab; |
1028 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
1029 | stab = arg[1].arg_ptr.arg_stab; |
1030 | else |
a687059c |
1031 | stab = stabent(str_get(st[1]),TRUE); |
378cc40b |
1032 | str_set(str, do_close(stab,TRUE) ? Yes : No ); |
1033 | STABSET(str); |
1034 | break; |
1035 | case O_EACH: |
a687059c |
1036 | sp = do_each(str,stab_hash(arg[1].arg_ptr.arg_stab), |
1037 | gimme,arglast); |
1038 | goto array_return; |
378cc40b |
1039 | case O_VALUES: |
1040 | case O_KEYS: |
a687059c |
1041 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
1042 | gimme,arglast); |
1043 | goto array_return; |
1044 | case O_LARRAY: |
1045 | str->str_nok = str->str_pok = 0; |
1046 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
1047 | str->str_state = SS_ARY; |
1048 | break; |
378cc40b |
1049 | case O_ARRAY: |
a687059c |
1050 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
1051 | maxarg = ary->ary_fill + 1; |
1052 | if (gimme == G_ARRAY) { /* array wanted */ |
1053 | sp = arglast[0]; |
1054 | st -= sp; |
1055 | if (maxarg > 0 && sp + maxarg > stack->ary_max) { |
1056 | astore(stack,sp + maxarg, Nullstr); |
1057 | st = stack->ary_array; |
378cc40b |
1058 | } |
154e51a4 |
1059 | st += sp; |
1060 | Copy(ary->ary_array, &st[1], maxarg, STR*); |
a687059c |
1061 | sp += maxarg; |
1062 | goto array_return; |
378cc40b |
1063 | } |
afd9f252 |
1064 | else { |
1065 | value = (double)maxarg; |
1066 | goto donumset; |
1067 | } |
a687059c |
1068 | case O_AELEM: |
0d3e774c |
1069 | anum = ((int)str_gnum(st[2])) - arybase; |
1070 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,FALSE); |
378cc40b |
1071 | break; |
1072 | case O_DELETE: |
a687059c |
1073 | tmpstab = arg[1].arg_ptr.arg_stab; |
1074 | tmps = str_get(st[2]); |
1075 | str = hdelete(stab_hash(tmpstab),tmps,st[2]->str_cur); |
1076 | if (tmpstab == envstab) |
1077 | setenv(tmps,Nullch); |
378cc40b |
1078 | if (!str) |
a687059c |
1079 | goto say_undef; |
1080 | break; |
1081 | case O_LHASH: |
1082 | str->str_nok = str->str_pok = 0; |
1083 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
1084 | str->str_state = SS_HASH; |
378cc40b |
1085 | break; |
1086 | case O_HASH: |
a687059c |
1087 | if (gimme == G_ARRAY) { /* array wanted */ |
1088 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
1089 | gimme,arglast); |
1090 | goto array_return; |
1091 | } |
1092 | else { |
1093 | tmpstab = arg[1].arg_ptr.arg_stab; |
154e51a4 |
1094 | if (!stab_hash(tmpstab)->tbl_fill) |
1095 | goto say_zero; |
a687059c |
1096 | sprintf(buf,"%d/%d",stab_hash(tmpstab)->tbl_fill, |
1097 | stab_hash(tmpstab)->tbl_max+1); |
1098 | str_set(str,buf); |
1099 | } |
1100 | break; |
1101 | case O_HELEM: |
1102 | tmpstab = arg[1].arg_ptr.arg_stab; |
1103 | tmps = str_get(st[2]); |
1104 | str = hfetch(stab_hash(tmpstab),tmps,st[2]->str_cur,FALSE); |
378cc40b |
1105 | break; |
a687059c |
1106 | case O_LAELEM: |
1107 | anum = ((int)str_gnum(st[2])) - arybase; |
1108 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,TRUE); |
c2ab57d4 |
1109 | if (!str || str == &str_undef) |
a687059c |
1110 | fatal("Assignment to non-creatable value, subscript %d",anum); |
378cc40b |
1111 | break; |
a687059c |
1112 | case O_LHELEM: |
1113 | tmpstab = arg[1].arg_ptr.arg_stab; |
1114 | tmps = str_get(st[2]); |
1115 | anum = st[2]->str_cur; |
1116 | str = hfetch(stab_hash(tmpstab),tmps,anum,TRUE); |
c2ab57d4 |
1117 | if (!str || str == &str_undef) |
a687059c |
1118 | fatal("Assignment to non-creatable value, subscript \"%s\"",tmps); |
1119 | if (tmpstab == envstab) /* heavy wizardry going on here */ |
1120 | str_magic(str, tmpstab, 'E', tmps, anum); /* str is now magic */ |
378cc40b |
1121 | /* he threw the brick up into the air */ |
a687059c |
1122 | else if (tmpstab == sigstab) |
1123 | str_magic(str, tmpstab, 'S', tmps, anum); |
1124 | #ifdef SOME_DBM |
1125 | else if (stab_hash(tmpstab)->tbl_dbm) |
1126 | str_magic(str, tmpstab, 'D', tmps, anum); |
1127 | #endif |
6e21c824 |
1128 | else if (tmpstab == DBline) |
c2ab57d4 |
1129 | str_magic(str, tmpstab, 'L', tmps, anum); |
378cc40b |
1130 | break; |
79a0689e |
1131 | case O_LSLICE: |
1132 | anum = 2; |
1133 | argtype = FALSE; |
1134 | goto do_slice_already; |
a687059c |
1135 | case O_ASLICE: |
79a0689e |
1136 | anum = 1; |
a687059c |
1137 | argtype = FALSE; |
1138 | goto do_slice_already; |
1139 | case O_HSLICE: |
79a0689e |
1140 | anum = 0; |
a687059c |
1141 | argtype = FALSE; |
1142 | goto do_slice_already; |
1143 | case O_LASLICE: |
79a0689e |
1144 | anum = 1; |
a687059c |
1145 | argtype = TRUE; |
1146 | goto do_slice_already; |
1147 | case O_LHSLICE: |
79a0689e |
1148 | anum = 0; |
a687059c |
1149 | argtype = TRUE; |
1150 | do_slice_already: |
79a0689e |
1151 | sp = do_slice(arg[1].arg_ptr.arg_stab,str,anum,argtype, |
a687059c |
1152 | gimme,arglast); |
1153 | goto array_return; |
79a0689e |
1154 | case O_SPLICE: |
154e51a4 |
1155 | sp = do_splice(stab_array(arg[1].arg_ptr.arg_stab),gimme,arglast); |
79a0689e |
1156 | goto array_return; |
378cc40b |
1157 | case O_PUSH: |
a687059c |
1158 | if (arglast[2] - arglast[1] != 1) |
1159 | str = do_push(stab_array(arg[1].arg_ptr.arg_stab),arglast); |
378cc40b |
1160 | else { |
a687059c |
1161 | str = Str_new(51,0); /* must copy the STR */ |
1162 | str_sset(str,st[2]); |
1163 | (void)apush(stab_array(arg[1].arg_ptr.arg_stab),str); |
378cc40b |
1164 | } |
1165 | break; |
1166 | case O_POP: |
a687059c |
1167 | str = apop(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
1168 | goto staticalization; |
378cc40b |
1169 | case O_SHIFT: |
a687059c |
1170 | str = ashift(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
1171 | staticalization: |
1172 | if (!str) |
1173 | goto say_undef; |
1174 | if (ary->ary_flags & ARF_REAL) |
fe14fcc3 |
1175 | (void)str_2mortal(str); |
378cc40b |
1176 | break; |
a687059c |
1177 | case O_UNPACK: |
1178 | sp = do_unpack(str,gimme,arglast); |
1179 | goto array_return; |
378cc40b |
1180 | case O_SPLIT: |
a687059c |
1181 | value = str_gnum(st[3]); |
1182 | sp = do_split(str, arg[2].arg_ptr.arg_spat, (int)value, |
1183 | gimme,arglast); |
1184 | goto array_return; |
378cc40b |
1185 | case O_LENGTH: |
a687059c |
1186 | if (maxarg < 1) |
1187 | value = (double)str_len(stab_val(defstab)); |
1188 | else |
1189 | value = (double)str_len(st[1]); |
378cc40b |
1190 | goto donumset; |
1191 | case O_SPRINTF: |
a687059c |
1192 | do_sprintf(str, sp-arglast[0], st+1); |
378cc40b |
1193 | break; |
1194 | case O_SUBSTR: |
a687059c |
1195 | anum = ((int)str_gnum(st[2])) - arybase; /* anum=where to start*/ |
1196 | tmps = str_get(st[1]); /* force conversion to string */ |
99b89507 |
1197 | /*SUPPRESS 560*/ |
a687059c |
1198 | if (argtype = (str == st[1])) |
1199 | str = arg->arg_ptr.arg_str; |
1200 | if (anum < 0) |
1201 | anum += st[1]->str_cur + arybase; |
1202 | if (anum < 0 || anum > st[1]->str_cur) |
1203 | str_nset(str,"",0); |
1204 | else { |
c2ab57d4 |
1205 | optype = maxarg < 3 ? st[1]->str_cur : (int)str_gnum(st[3]); |
a687059c |
1206 | if (optype < 0) |
1207 | optype = 0; |
1208 | tmps += anum; |
1209 | anum = st[1]->str_cur - anum; /* anum=how many bytes left*/ |
1210 | if (anum > optype) |
1211 | anum = optype; |
378cc40b |
1212 | str_nset(str, tmps, anum); |
a687059c |
1213 | if (argtype) { /* it's an lvalue! */ |
1214 | lstr = (struct lstring*)str; |
1215 | str->str_magic = st[1]; |
1216 | st[1]->str_rare = 's'; |
1217 | lstr->lstr_offset = tmps - str_get(st[1]); |
1218 | lstr->lstr_len = anum; |
1219 | } |
1220 | } |
1221 | break; |
1222 | case O_PACK: |
99b89507 |
1223 | /*SUPPRESS 701*/ |
a687059c |
1224 | (void)do_pack(str,arglast); |
378cc40b |
1225 | break; |
a687059c |
1226 | case O_GREP: |
1227 | sp = do_grep(arg,str,gimme,arglast); |
1228 | goto array_return; |
378cc40b |
1229 | case O_JOIN: |
a687059c |
1230 | do_join(str,arglast); |
378cc40b |
1231 | break; |
1232 | case O_SLT: |
a687059c |
1233 | tmps = str_get(st[1]); |
1234 | value = (double) (str_cmp(st[1],st[2]) < 0); |
378cc40b |
1235 | goto donumset; |
1236 | case O_SGT: |
a687059c |
1237 | tmps = str_get(st[1]); |
1238 | value = (double) (str_cmp(st[1],st[2]) > 0); |
378cc40b |
1239 | goto donumset; |
1240 | case O_SLE: |
a687059c |
1241 | tmps = str_get(st[1]); |
1242 | value = (double) (str_cmp(st[1],st[2]) <= 0); |
378cc40b |
1243 | goto donumset; |
1244 | case O_SGE: |
a687059c |
1245 | tmps = str_get(st[1]); |
1246 | value = (double) (str_cmp(st[1],st[2]) >= 0); |
378cc40b |
1247 | goto donumset; |
1248 | case O_SEQ: |
a687059c |
1249 | tmps = str_get(st[1]); |
1250 | value = (double) str_eq(st[1],st[2]); |
378cc40b |
1251 | goto donumset; |
1252 | case O_SNE: |
a687059c |
1253 | tmps = str_get(st[1]); |
1254 | value = (double) !str_eq(st[1],st[2]); |
378cc40b |
1255 | goto donumset; |
c2ab57d4 |
1256 | case O_SCMP: |
1257 | tmps = str_get(st[1]); |
1258 | value = (double) str_cmp(st[1],st[2]); |
1259 | goto donumset; |
378cc40b |
1260 | case O_SUBR: |
a687059c |
1261 | sp = do_subr(arg,gimme,arglast); |
1262 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
1263 | goto array_return; |
1264 | case O_DBSUBR: |
c2ab57d4 |
1265 | sp = do_subr(arg,gimme,arglast); |
1266 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
1267 | goto array_return; |
1268 | case O_CALLER: |
1269 | sp = do_caller(arg,maxarg,gimme,arglast); |
a687059c |
1270 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
1271 | goto array_return; |
378cc40b |
1272 | case O_SORT: |
99b89507 |
1273 | sp = do_sort(str,arg, |
a687059c |
1274 | gimme,arglast); |
1275 | goto array_return; |
1276 | case O_REVERSE: |
c2ab57d4 |
1277 | if (gimme == G_ARRAY) |
57ebbfd0 |
1278 | sp = do_reverse(arglast); |
c2ab57d4 |
1279 | else |
57ebbfd0 |
1280 | sp = do_sreverse(str, arglast); |
a687059c |
1281 | goto array_return; |
1282 | case O_WARN: |
1283 | if (arglast[2] - arglast[1] != 1) { |
1284 | do_join(str,arglast); |
fe14fcc3 |
1285 | tmps = str_get(str); |
a687059c |
1286 | } |
378cc40b |
1287 | else { |
a687059c |
1288 | str = st[2]; |
1289 | tmps = str_get(st[2]); |
378cc40b |
1290 | } |
a687059c |
1291 | if (!tmps || !*tmps) |
1292 | tmps = "Warning: something's wrong"; |
1293 | warn("%s",tmps); |
1294 | goto say_yes; |
1295 | case O_DIE: |
1296 | if (arglast[2] - arglast[1] != 1) { |
1297 | do_join(str,arglast); |
fe14fcc3 |
1298 | tmps = str_get(str); |
378cc40b |
1299 | } |
a687059c |
1300 | else { |
1301 | str = st[2]; |
1302 | tmps = str_get(st[2]); |
1303 | } |
1304 | if (!tmps || !*tmps) |
154e51a4 |
1305 | tmps = "Died"; |
a687059c |
1306 | fatal("%s",tmps); |
1307 | goto say_zero; |
378cc40b |
1308 | case O_PRTF: |
1309 | case O_PRINT: |
a687059c |
1310 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1311 | stab = arg[1].arg_ptr.arg_stab; |
1312 | else |
1313 | stab = stabent(str_get(st[1]),TRUE); |
1314 | if (!stab) |
378cc40b |
1315 | stab = defoutstab; |
a687059c |
1316 | if (!stab_io(stab)) { |
1317 | if (dowarn) |
1318 | warn("Filehandle never opened"); |
1319 | goto say_zero; |
1320 | } |
1321 | if (!(fp = stab_io(stab)->ofp)) { |
1322 | if (dowarn) { |
1323 | if (stab_io(stab)->ifp) |
1324 | warn("Filehandle opened only for input"); |
1325 | else |
1326 | warn("Print on closed filehandle"); |
1327 | } |
1328 | goto say_zero; |
378cc40b |
1329 | } |
378cc40b |
1330 | else { |
a687059c |
1331 | if (optype == O_PRTF || arglast[2] - arglast[1] != 1) |
1332 | value = (double)do_aprint(arg,fp,arglast); |
378cc40b |
1333 | else { |
a687059c |
1334 | value = (double)do_print(st[2],fp); |
1335 | if (orslen && optype == O_PRINT) |
1336 | if (fwrite(ors, 1, orslen, fp) == 0) |
1337 | goto say_zero; |
378cc40b |
1338 | } |
a687059c |
1339 | if (stab_io(stab)->flags & IOF_FLUSH) |
1340 | if (fflush(fp) == EOF) |
1341 | goto say_zero; |
378cc40b |
1342 | } |
1343 | goto donumset; |
1344 | case O_CHDIR: |
a687059c |
1345 | if (maxarg < 1) |
afd9f252 |
1346 | tmps = Nullch; |
a687059c |
1347 | else |
1348 | tmps = str_get(st[1]); |
1349 | if (!tmps || !*tmps) { |
1350 | tmpstr = hfetch(stab_hash(envstab),"HOME",4,FALSE); |
c2ab57d4 |
1351 | tmps = str_get(tmpstr); |
a687059c |
1352 | } |
1353 | if (!tmps || !*tmps) { |
1354 | tmpstr = hfetch(stab_hash(envstab),"LOGDIR",6,FALSE); |
c2ab57d4 |
1355 | tmps = str_get(tmpstr); |
a687059c |
1356 | } |
1357 | #ifdef TAINT |
1358 | taintproper("Insecure dependency in chdir"); |
1359 | #endif |
378cc40b |
1360 | value = (double)(chdir(tmps) >= 0); |
1361 | goto donumset; |
378cc40b |
1362 | case O_EXIT: |
a687059c |
1363 | if (maxarg < 1) |
1364 | anum = 0; |
1365 | else |
1366 | anum = (int)str_gnum(st[1]); |
1367 | exit(anum); |
1368 | goto say_zero; |
378cc40b |
1369 | case O_RESET: |
a687059c |
1370 | if (maxarg < 1) |
1371 | tmps = ""; |
1372 | else |
1373 | tmps = str_get(st[1]); |
c2ab57d4 |
1374 | str_reset(tmps,curcmd->c_stash); |
378cc40b |
1375 | value = 1.0; |
1376 | goto donumset; |
1377 | case O_LIST: |
a687059c |
1378 | if (gimme == G_ARRAY) |
1379 | goto array_return; |
378cc40b |
1380 | if (maxarg > 0) |
a687059c |
1381 | str = st[sp - arglast[0]]; /* unwanted list, return last item */ |
378cc40b |
1382 | else |
a687059c |
1383 | str = &str_undef; |
378cc40b |
1384 | break; |
1385 | case O_EOF: |
1386 | if (maxarg <= 0) |
1387 | stab = last_in_stab; |
a687059c |
1388 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
1389 | stab = arg[1].arg_ptr.arg_stab; |
1390 | else |
a687059c |
1391 | stab = stabent(str_get(st[1]),TRUE); |
378cc40b |
1392 | str_set(str, do_eof(stab) ? Yes : No); |
1393 | STABSET(str); |
1394 | break; |
a687059c |
1395 | case O_GETC: |
378cc40b |
1396 | if (maxarg <= 0) |
a687059c |
1397 | stab = stdinstab; |
1398 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
1399 | stab = arg[1].arg_ptr.arg_stab; |
1400 | else |
a687059c |
1401 | stab = stabent(str_get(st[1]),TRUE); |
c2ab57d4 |
1402 | if (!stab) |
1403 | stab = argvstab; |
1404 | if (!stab || do_eof(stab)) /* make sure we have fp with something */ |
1405 | goto say_undef; |
a687059c |
1406 | else { |
1407 | #ifdef TAINT |
1408 | tainted = 1; |
1409 | #endif |
1410 | str_set(str," "); |
1411 | *str->str_ptr = getc(stab_io(stab)->ifp); /* should never be EOF */ |
1412 | } |
1413 | STABSET(str); |
1414 | break; |
1415 | case O_TELL: |
1416 | if (maxarg <= 0) |
1417 | stab = last_in_stab; |
1418 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
1419 | stab = arg[1].arg_ptr.arg_stab; |
1420 | else |
1421 | stab = stabent(str_get(st[1]),TRUE); |
1422 | #ifndef lint |
1423 | value = (double)do_tell(stab); |
1424 | #else |
1425 | (void)do_tell(stab); |
1426 | #endif |
1427 | goto donumset; |
1428 | case O_RECV: |
1429 | case O_READ: |
c2ab57d4 |
1430 | case O_SYSREAD: |
a687059c |
1431 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1432 | stab = arg[1].arg_ptr.arg_stab; |
1433 | else |
1434 | stab = stabent(str_get(st[1]),TRUE); |
1435 | tmps = str_get(st[2]); |
1436 | anum = (int)str_gnum(st[3]); |
a687059c |
1437 | errno = 0; |
c2ab57d4 |
1438 | maxarg = sp - arglast[0]; |
1439 | if (maxarg > 4) |
1440 | warn("Too many args on read"); |
1441 | if (maxarg == 4) |
1442 | maxarg = (int)str_gnum(st[4]); |
1443 | else |
1444 | maxarg = 0; |
a687059c |
1445 | if (!stab_io(stab) || !stab_io(stab)->ifp) |
c2ab57d4 |
1446 | goto say_undef; |
fe14fcc3 |
1447 | #ifdef HAS_SOCKET |
c2ab57d4 |
1448 | if (optype == O_RECV) { |
a687059c |
1449 | argtype = sizeof buf; |
fe14fcc3 |
1450 | STR_GROW(st[2], anum+1), (tmps = str_get(st[2])); /* sneaky */ |
c2ab57d4 |
1451 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, maxarg, |
a687059c |
1452 | buf, &argtype); |
1453 | if (anum >= 0) { |
1454 | st[2]->str_cur = anum; |
1455 | st[2]->str_ptr[anum] = '\0'; |
1456 | str_nset(str,buf,argtype); |
1457 | } |
1458 | else |
1459 | str_sset(str,&str_undef); |
1460 | break; |
1461 | } |
c2ab57d4 |
1462 | #else |
1463 | if (optype == O_RECV) |
1464 | goto badsock; |
1465 | #endif |
1466 | STR_GROW(st[2], anum+maxarg+1), (tmps = str_get(st[2])); /* sneaky */ |
99b89507 |
1467 | if (optype == O_SYSREAD) { |
1468 | anum = read(fileno(stab_io(stab)->ifp), tmps+maxarg, anum); |
1469 | } |
1470 | else |
fe14fcc3 |
1471 | #ifdef HAS_SOCKET |
c2ab57d4 |
1472 | if (stab_io(stab)->type == 's') { |
a687059c |
1473 | argtype = sizeof buf; |
c2ab57d4 |
1474 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps+maxarg, anum, 0, |
a687059c |
1475 | buf, &argtype); |
1476 | } |
c2ab57d4 |
1477 | else |
a687059c |
1478 | #endif |
c2ab57d4 |
1479 | anum = fread(tmps+maxarg, 1, anum, stab_io(stab)->ifp); |
a687059c |
1480 | if (anum < 0) |
1481 | goto say_undef; |
c2ab57d4 |
1482 | st[2]->str_cur = anum+maxarg; |
1483 | st[2]->str_ptr[anum+maxarg] = '\0'; |
a687059c |
1484 | value = (double)anum; |
1485 | goto donumset; |
c2ab57d4 |
1486 | case O_SYSWRITE: |
a687059c |
1487 | case O_SEND: |
a687059c |
1488 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1489 | stab = arg[1].arg_ptr.arg_stab; |
1490 | else |
1491 | stab = stabent(str_get(st[1]),TRUE); |
1492 | tmps = str_get(st[2]); |
1493 | anum = (int)str_gnum(st[3]); |
a687059c |
1494 | errno = 0; |
663a0e37 |
1495 | stio = stab_io(stab); |
c2ab57d4 |
1496 | maxarg = sp - arglast[0]; |
663a0e37 |
1497 | if (!stio || !stio->ifp) { |
1498 | anum = -1; |
c2ab57d4 |
1499 | if (dowarn) { |
1500 | if (optype == O_SYSWRITE) |
1501 | warn("Syswrite on closed filehandle"); |
1502 | else |
1503 | warn("Send on closed socket"); |
1504 | } |
1505 | } |
1506 | else if (optype == O_SYSWRITE) { |
1507 | if (maxarg > 4) |
1508 | warn("Too many args on syswrite"); |
1509 | if (maxarg == 4) |
1510 | optype = (int)str_gnum(st[4]); |
1511 | else |
1512 | optype = 0; |
1513 | anum = write(fileno(stab_io(stab)->ifp), tmps+optype, anum); |
663a0e37 |
1514 | } |
fe14fcc3 |
1515 | #ifdef HAS_SOCKET |
c2ab57d4 |
1516 | else if (maxarg >= 4) { |
1517 | if (maxarg > 4) |
1518 | warn("Too many args on send"); |
a687059c |
1519 | tmps2 = str_get(st[4]); |
1520 | anum = sendto(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, |
1521 | anum, tmps2, st[4]->str_cur); |
1522 | } |
1523 | else |
1524 | anum = send(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, anum); |
c2ab57d4 |
1525 | #else |
1526 | else |
1527 | goto badsock; |
1528 | #endif |
a687059c |
1529 | if (anum < 0) |
1530 | goto say_undef; |
1531 | value = (double)anum; |
1532 | goto donumset; |
a687059c |
1533 | case O_SEEK: |
1534 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1535 | stab = arg[1].arg_ptr.arg_stab; |
378cc40b |
1536 | else |
a687059c |
1537 | stab = stabent(str_get(st[1]),TRUE); |
1538 | value = str_gnum(st[2]); |
378cc40b |
1539 | str_set(str, do_seek(stab, |
a687059c |
1540 | (long)value, (int)str_gnum(st[3]) ) ? Yes : No); |
378cc40b |
1541 | STABSET(str); |
1542 | break; |
a687059c |
1543 | case O_RETURN: |
afd9f252 |
1544 | tmps = "_SUB_"; /* just fake up a "last _SUB_" */ |
a687059c |
1545 | optype = O_LAST; |
57ebbfd0 |
1546 | if (curcsv && curcsv->wantarray == G_ARRAY) { |
a687059c |
1547 | lastretstr = Nullstr; |
1548 | lastspbase = arglast[1]; |
1549 | lastsize = arglast[2] - arglast[1]; |
1550 | } |
1551 | else |
fe14fcc3 |
1552 | lastretstr = str_mortal(st[arglast[2] - arglast[0]]); |
a687059c |
1553 | goto dopop; |
378cc40b |
1554 | case O_REDO: |
1555 | case O_NEXT: |
1556 | case O_LAST: |
99b89507 |
1557 | tmps = Nullch; |
378cc40b |
1558 | if (maxarg > 0) { |
a687059c |
1559 | tmps = str_get(arg[1].arg_ptr.arg_str); |
1560 | dopop: |
378cc40b |
1561 | while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label || |
1562 | strNE(tmps,loop_stack[loop_ptr].loop_label) )) { |
1563 | #ifdef DEBUGGING |
1564 | if (debug & 4) { |
1565 | deb("(Skipping label #%d %s)\n",loop_ptr, |
1566 | loop_stack[loop_ptr].loop_label); |
1567 | } |
1568 | #endif |
1569 | loop_ptr--; |
1570 | } |
1571 | #ifdef DEBUGGING |
1572 | if (debug & 4) { |
1573 | deb("(Found label #%d %s)\n",loop_ptr, |
1574 | loop_stack[loop_ptr].loop_label); |
1575 | } |
1576 | #endif |
1577 | } |
154e51a4 |
1578 | if (loop_ptr < 0) { |
1579 | if (tmps && strEQ(tmps, "_SUB_")) |
1580 | fatal("Can't return outside a subroutine"); |
378cc40b |
1581 | fatal("Bad label: %s", maxarg > 0 ? tmps : "<null>"); |
154e51a4 |
1582 | } |
a687059c |
1583 | if (!lastretstr && optype == O_LAST && lastsize) { |
1584 | st -= arglast[0]; |
1585 | st += lastspbase + 1; |
1586 | optype = loop_stack[loop_ptr].loop_sp - lastspbase; /* negative */ |
1587 | if (optype) { |
1588 | for (anum = lastsize; anum > 0; anum--,st++) |
fe14fcc3 |
1589 | st[optype] = str_mortal(st[0]); |
a687059c |
1590 | } |
1591 | longjmp(loop_stack[loop_ptr].loop_env, O_LAST); |
1592 | } |
378cc40b |
1593 | longjmp(loop_stack[loop_ptr].loop_env, optype); |
a687059c |
1594 | case O_DUMP: |
378cc40b |
1595 | case O_GOTO:/* shudder */ |
a687059c |
1596 | goto_targ = str_get(arg[1].arg_ptr.arg_str); |
1597 | if (!*goto_targ) |
1598 | goto_targ = Nullch; /* just restart from top */ |
1599 | if (optype == O_DUMP) { |
1600 | do_undump = 1; |
57ebbfd0 |
1601 | my_unexec(); |
a687059c |
1602 | } |
378cc40b |
1603 | longjmp(top_env, 1); |
1604 | case O_INDEX: |
a687059c |
1605 | tmps = str_get(st[1]); |
c2ab57d4 |
1606 | if (maxarg < 3) |
1607 | anum = 0; |
1608 | else { |
1609 | anum = (int) str_gnum(st[3]) - arybase; |
1610 | if (anum < 0) |
1611 | anum = 0; |
1612 | else if (anum > st[1]->str_cur) |
1613 | anum = st[1]->str_cur; |
1614 | } |
a687059c |
1615 | #ifndef lint |
c2ab57d4 |
1616 | if (!(tmps2 = fbminstr((unsigned char*)tmps + anum, |
a687059c |
1617 | (unsigned char*)tmps + st[1]->str_cur, st[2]))) |
1618 | #else |
1619 | if (tmps2 = fbminstr(Null(unsigned char*),Null(unsigned char*),Nullstr)) |
1620 | #endif |
1621 | value = (double)(-1 + arybase); |
1622 | else |
1623 | value = (double)(tmps2 - tmps + arybase); |
1624 | goto donumset; |
1625 | case O_RINDEX: |
1626 | tmps = str_get(st[1]); |
1627 | tmps2 = str_get(st[2]); |
c2ab57d4 |
1628 | if (maxarg < 3) |
1629 | anum = st[1]->str_cur; |
1630 | else { |
1631 | anum = (int) str_gnum(st[3]) - arybase + st[2]->str_cur; |
1632 | if (anum < 0) |
1633 | anum = 0; |
1634 | else if (anum > st[1]->str_cur) |
1635 | anum = st[1]->str_cur; |
1636 | } |
a687059c |
1637 | #ifndef lint |
c2ab57d4 |
1638 | if (!(tmps2 = rninstr(tmps, tmps + anum, |
a687059c |
1639 | tmps2, tmps2 + st[2]->str_cur))) |
1640 | #else |
1641 | if (tmps2 = rninstr(Nullch,Nullch,Nullch,Nullch)) |
1642 | #endif |
378cc40b |
1643 | value = (double)(-1 + arybase); |
1644 | else |
1645 | value = (double)(tmps2 - tmps + arybase); |
1646 | goto donumset; |
1647 | case O_TIME: |
a687059c |
1648 | #ifndef lint |
378cc40b |
1649 | value = (double) time(Null(long*)); |
a687059c |
1650 | #endif |
378cc40b |
1651 | goto donumset; |
1652 | case O_TMS: |
a687059c |
1653 | sp = do_tms(str,gimme,arglast); |
1654 | goto array_return; |
378cc40b |
1655 | case O_LOCALTIME: |
a687059c |
1656 | if (maxarg < 1) |
1657 | (void)time(&when); |
1658 | else |
1659 | when = (long)str_gnum(st[1]); |
1660 | sp = do_time(str,localtime(&when), |
1661 | gimme,arglast); |
1662 | goto array_return; |
378cc40b |
1663 | case O_GMTIME: |
a687059c |
1664 | if (maxarg < 1) |
1665 | (void)time(&when); |
1666 | else |
1667 | when = (long)str_gnum(st[1]); |
1668 | sp = do_time(str,gmtime(&when), |
1669 | gimme,arglast); |
1670 | goto array_return; |
154e51a4 |
1671 | case O_TRUNCATE: |
1672 | sp = do_truncate(str,arg, |
1673 | gimme,arglast); |
1674 | goto array_return; |
a687059c |
1675 | case O_LSTAT: |
378cc40b |
1676 | case O_STAT: |
a687059c |
1677 | sp = do_stat(str,arg, |
1678 | gimme,arglast); |
1679 | goto array_return; |
378cc40b |
1680 | case O_CRYPT: |
fe14fcc3 |
1681 | #ifdef HAS_CRYPT |
a687059c |
1682 | tmps = str_get(st[1]); |
1683 | #ifdef FCRYPT |
1684 | str_set(str,fcrypt(tmps,str_get(st[2]))); |
1685 | #else |
1686 | str_set(str,crypt(tmps,str_get(st[2]))); |
1687 | #endif |
378cc40b |
1688 | #else |
1689 | fatal( |
1690 | "The crypt() function is unimplemented due to excessive paranoia."); |
1691 | #endif |
1692 | break; |
a687059c |
1693 | case O_ATAN2: |
1694 | value = str_gnum(st[1]); |
1695 | value = atan2(value,str_gnum(st[2])); |
1696 | goto donumset; |
1697 | case O_SIN: |
1698 | if (maxarg < 1) |
1699 | value = str_gnum(stab_val(defstab)); |
1700 | else |
1701 | value = str_gnum(st[1]); |
1702 | value = sin(value); |
1703 | goto donumset; |
1704 | case O_COS: |
1705 | if (maxarg < 1) |
1706 | value = str_gnum(stab_val(defstab)); |
1707 | else |
1708 | value = str_gnum(st[1]); |
1709 | value = cos(value); |
1710 | goto donumset; |
1711 | case O_RAND: |
1712 | if (maxarg < 1) |
1713 | value = 1.0; |
1714 | else |
1715 | value = str_gnum(st[1]); |
1716 | if (value == 0.0) |
1717 | value = 1.0; |
1718 | #if RANDBITS == 31 |
1719 | value = rand() * value / 2147483648.0; |
1720 | #else |
1721 | #if RANDBITS == 16 |
1722 | value = rand() * value / 65536.0; |
1723 | #else |
1724 | #if RANDBITS == 15 |
1725 | value = rand() * value / 32768.0; |
1726 | #else |
1727 | value = rand() * value / (double)(((unsigned long)1) << RANDBITS); |
1728 | #endif |
1729 | #endif |
1730 | #endif |
1731 | goto donumset; |
1732 | case O_SRAND: |
1733 | if (maxarg < 1) { |
1734 | (void)time(&when); |
1735 | anum = when; |
1736 | } |
1737 | else |
1738 | anum = (int)str_gnum(st[1]); |
1739 | (void)srand(anum); |
1740 | goto say_yes; |
378cc40b |
1741 | case O_EXP: |
a687059c |
1742 | if (maxarg < 1) |
1743 | value = str_gnum(stab_val(defstab)); |
1744 | else |
1745 | value = str_gnum(st[1]); |
1746 | value = exp(value); |
378cc40b |
1747 | goto donumset; |
1748 | case O_LOG: |
a687059c |
1749 | if (maxarg < 1) |
1750 | value = str_gnum(stab_val(defstab)); |
1751 | else |
1752 | value = str_gnum(st[1]); |
fe14fcc3 |
1753 | if (value <= 0.0) |
1754 | fatal("Can't take log of %g\n", value); |
a687059c |
1755 | value = log(value); |
378cc40b |
1756 | goto donumset; |
1757 | case O_SQRT: |
a687059c |
1758 | if (maxarg < 1) |
1759 | value = str_gnum(stab_val(defstab)); |
1760 | else |
1761 | value = str_gnum(st[1]); |
fe14fcc3 |
1762 | if (value < 0.0) |
1763 | fatal("Can't take sqrt of %g\n", value); |
a687059c |
1764 | value = sqrt(value); |
378cc40b |
1765 | goto donumset; |
1766 | case O_INT: |
a687059c |
1767 | if (maxarg < 1) |
1768 | value = str_gnum(stab_val(defstab)); |
1769 | else |
1770 | value = str_gnum(st[1]); |
378cc40b |
1771 | if (value >= 0.0) |
a687059c |
1772 | (void)modf(value,&value); |
378cc40b |
1773 | else { |
a687059c |
1774 | (void)modf(-value,&value); |
378cc40b |
1775 | value = -value; |
1776 | } |
1777 | goto donumset; |
1778 | case O_ORD: |
a687059c |
1779 | if (maxarg < 1) |
1780 | tmps = str_get(stab_val(defstab)); |
1781 | else |
1782 | tmps = str_get(st[1]); |
1783 | #ifndef I286 |
663a0e37 |
1784 | value = (double) (*tmps & 255); |
a687059c |
1785 | #else |
1786 | anum = (int) *tmps; |
663a0e37 |
1787 | value = (double) (anum & 255); |
a687059c |
1788 | #endif |
378cc40b |
1789 | goto donumset; |
57ebbfd0 |
1790 | case O_ALARM: |
fe14fcc3 |
1791 | #ifdef HAS_ALARM |
57ebbfd0 |
1792 | if (maxarg < 1) |
1793 | tmps = str_get(stab_val(defstab)); |
1794 | else |
1795 | tmps = str_get(st[1]); |
1796 | if (!tmps) |
1797 | tmps = "0"; |
1798 | anum = alarm((unsigned int)atoi(tmps)); |
1799 | if (anum < 0) |
1800 | goto say_undef; |
1801 | value = (double)anum; |
1802 | goto donumset; |
fe14fcc3 |
1803 | #else |
1804 | fatal("Unsupported function alarm"); |
1805 | break; |
1806 | #endif |
378cc40b |
1807 | case O_SLEEP: |
a687059c |
1808 | if (maxarg < 1) |
1809 | tmps = Nullch; |
1810 | else |
1811 | tmps = str_get(st[1]); |
1812 | (void)time(&when); |
378cc40b |
1813 | if (!tmps || !*tmps) |
1814 | sleep((32767<<16)+32767); |
1815 | else |
a687059c |
1816 | sleep((unsigned int)atoi(tmps)); |
1817 | #ifndef lint |
378cc40b |
1818 | value = (double)when; |
a687059c |
1819 | (void)time(&when); |
378cc40b |
1820 | value = ((double)when) - value; |
a687059c |
1821 | #endif |
378cc40b |
1822 | goto donumset; |
a687059c |
1823 | case O_RANGE: |
1824 | sp = do_range(gimme,arglast); |
1825 | goto array_return; |
1826 | case O_F_OR_R: |
1827 | if (gimme == G_ARRAY) { /* it's a range */ |
1828 | /* can we optimize to constant array? */ |
1829 | if ((arg[1].arg_type & A_MASK) == A_SINGLE && |
1830 | (arg[2].arg_type & A_MASK) == A_SINGLE) { |
1831 | st[2] = arg[2].arg_ptr.arg_str; |
1832 | sp = do_range(gimme,arglast); |
1833 | st = stack->ary_array; |
1834 | maxarg = sp - arglast[0]; |
1835 | str_free(arg[1].arg_ptr.arg_str); |
fe14fcc3 |
1836 | arg[1].arg_ptr.arg_str = Nullstr; |
a687059c |
1837 | str_free(arg[2].arg_ptr.arg_str); |
fe14fcc3 |
1838 | arg[2].arg_ptr.arg_str = Nullstr; |
a687059c |
1839 | arg->arg_type = O_ARRAY; |
1840 | arg[1].arg_type = A_STAB|A_DONT; |
1841 | arg->arg_len = 1; |
1842 | stab = arg[1].arg_ptr.arg_stab = aadd(genstab()); |
1843 | ary = stab_array(stab); |
1844 | afill(ary,maxarg - 1); |
c623bd54 |
1845 | anum = maxarg; |
a687059c |
1846 | st += arglast[0]+1; |
1847 | while (maxarg-- > 0) |
1848 | ary->ary_array[maxarg] = str_smake(st[maxarg]); |
c623bd54 |
1849 | st -= arglast[0]+1; |
a687059c |
1850 | goto array_return; |
1851 | } |
1852 | arg->arg_type = optype = O_RANGE; |
1853 | maxarg = arg->arg_len = 2; |
1854 | anum = 2; |
1855 | arg[anum].arg_flags &= ~AF_ARYOK; |
1856 | argflags = arg[anum].arg_flags; |
1857 | argtype = arg[anum].arg_type & A_MASK; |
1858 | arg[anum].arg_type = argtype; |
1859 | argptr = arg[anum].arg_ptr; |
1860 | sp = arglast[0]; |
1861 | st -= sp; |
1862 | sp++; |
1863 | goto re_eval; |
1864 | } |
1865 | arg->arg_type = O_FLIP; |
1866 | /* FALL THROUGH */ |
378cc40b |
1867 | case O_FLIP: |
a687059c |
1868 | if ((arg[1].arg_type & A_MASK) == A_SINGLE ? |
1869 | last_in_stab && (int)str_gnum(st[1]) == stab_io(last_in_stab)->lines |
1870 | : |
1871 | str_true(st[1]) ) { |
378cc40b |
1872 | str_numset(str,0.0); |
1873 | anum = 2; |
1874 | arg->arg_type = optype = O_FLOP; |
a687059c |
1875 | arg[2].arg_type &= ~A_DONT; |
1876 | arg[1].arg_type |= A_DONT; |
378cc40b |
1877 | argflags = arg[2].arg_flags; |
a687059c |
1878 | argtype = arg[2].arg_type & A_MASK; |
378cc40b |
1879 | argptr = arg[2].arg_ptr; |
a687059c |
1880 | sp = arglast[0]; |
154e51a4 |
1881 | st -= sp++; |
378cc40b |
1882 | goto re_eval; |
1883 | } |
1884 | str_set(str,""); |
1885 | break; |
1886 | case O_FLOP: |
1887 | str_inc(str); |
a687059c |
1888 | if ((arg[2].arg_type & A_MASK) == A_SINGLE ? |
1889 | last_in_stab && (int)str_gnum(st[2]) == stab_io(last_in_stab)->lines |
1890 | : |
1891 | str_true(st[2]) ) { |
378cc40b |
1892 | arg->arg_type = O_FLIP; |
a687059c |
1893 | arg[1].arg_type &= ~A_DONT; |
1894 | arg[2].arg_type |= A_DONT; |
378cc40b |
1895 | str_cat(str,"E0"); |
1896 | } |
1897 | break; |
1898 | case O_FORK: |
fe14fcc3 |
1899 | #ifdef HAS_FORK |
a687059c |
1900 | anum = fork(); |
1c3d792e |
1901 | if (anum < 0) |
1902 | goto say_undef; |
c2ab57d4 |
1903 | if (!anum) { |
99b89507 |
1904 | /*SUPPRESS 560*/ |
c2ab57d4 |
1905 | if (tmpstab = stabent("$",allstabs)) |
1906 | str_numset(STAB_STR(tmpstab),(double)getpid()); |
99b89507 |
1907 | hclear(pidstatus, FALSE); /* no kids, so don't wait for 'em */ |
c2ab57d4 |
1908 | } |
a687059c |
1909 | value = (double)anum; |
378cc40b |
1910 | goto donumset; |
b1248f16 |
1911 | #else |
1912 | fatal("Unsupported function fork"); |
1913 | break; |
1914 | #endif |
378cc40b |
1915 | case O_WAIT: |
fe14fcc3 |
1916 | #ifdef HAS_WAIT |
a687059c |
1917 | #ifndef lint |
a687059c |
1918 | anum = wait(&argflags); |
1919 | if (anum > 0) |
1920 | pidgone(anum,argflags); |
1921 | value = (double)anum; |
a687059c |
1922 | #endif |
378cc40b |
1923 | statusvalue = (unsigned short)argflags; |
1924 | goto donumset; |
b1248f16 |
1925 | #else |
1926 | fatal("Unsupported function wait"); |
1927 | break; |
1928 | #endif |
c2ab57d4 |
1929 | case O_WAITPID: |
fe14fcc3 |
1930 | #ifdef HAS_WAIT |
c2ab57d4 |
1931 | #ifndef lint |
1932 | anum = (int)str_gnum(st[1]); |
1933 | optype = (int)str_gnum(st[2]); |
1934 | anum = wait4pid(anum, &argflags,optype); |
1935 | value = (double)anum; |
1936 | #endif |
1937 | statusvalue = (unsigned short)argflags; |
1938 | goto donumset; |
1939 | #else |
1940 | fatal("Unsupported function wait"); |
1941 | break; |
1942 | #endif |
378cc40b |
1943 | case O_SYSTEM: |
fe14fcc3 |
1944 | #ifdef HAS_FORK |
a687059c |
1945 | #ifdef TAINT |
1946 | if (arglast[2] - arglast[1] == 1) { |
1947 | taintenv(); |
1948 | tainted |= st[2]->str_tainted; |
1949 | taintproper("Insecure dependency in system"); |
1950 | } |
1951 | #endif |
378cc40b |
1952 | while ((anum = vfork()) == -1) { |
1953 | if (errno != EAGAIN) { |
1954 | value = -1.0; |
1955 | goto donumset; |
1956 | } |
1957 | sleep(5); |
1958 | } |
1959 | if (anum > 0) { |
a687059c |
1960 | #ifndef lint |
378cc40b |
1961 | ihand = signal(SIGINT, SIG_IGN); |
1962 | qhand = signal(SIGQUIT, SIG_IGN); |
c2ab57d4 |
1963 | argtype = wait4pid(anum, &argflags, 0); |
a687059c |
1964 | #else |
1965 | ihand = qhand = 0; |
1966 | #endif |
1967 | (void)signal(SIGINT, ihand); |
1968 | (void)signal(SIGQUIT, qhand); |
378cc40b |
1969 | statusvalue = (unsigned short)argflags; |
c2ab57d4 |
1970 | if (argtype < 0) |
378cc40b |
1971 | value = -1.0; |
1972 | else { |
1973 | value = (double)((unsigned int)argflags & 0xffff); |
1974 | } |
154e51a4 |
1975 | do_execfree(); /* free any memory child malloced on vfork */ |
378cc40b |
1976 | goto donumset; |
1977 | } |
a687059c |
1978 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
1979 | value = (double)do_aexec(st[1],arglast); |
1980 | else if (arglast[2] - arglast[1] != 1) |
1981 | value = (double)do_aexec(Nullstr,arglast); |
378cc40b |
1982 | else { |
fe14fcc3 |
1983 | value = (double)do_exec(str_get(str_mortal(st[2]))); |
378cc40b |
1984 | } |
1985 | _exit(-1); |
b1248f16 |
1986 | #else /* ! FORK */ |
1987 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
1988 | value = (double)do_aspawn(st[1],arglast); |
1989 | else if (arglast[2] - arglast[1] != 1) |
1990 | value = (double)do_aspawn(Nullstr,arglast); |
1991 | else { |
fe14fcc3 |
1992 | value = (double)do_spawn(str_get(str_mortal(st[2]))); |
b1248f16 |
1993 | } |
1994 | goto donumset; |
1995 | #endif /* FORK */ |
c2ab57d4 |
1996 | case O_EXEC_OP: |
a687059c |
1997 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
1998 | value = (double)do_aexec(st[1],arglast); |
1999 | else if (arglast[2] - arglast[1] != 1) |
2000 | value = (double)do_aexec(Nullstr,arglast); |
378cc40b |
2001 | else { |
6e21c824 |
2002 | #ifdef TAINT |
2003 | taintenv(); |
2004 | tainted |= st[2]->str_tainted; |
2005 | taintproper("Insecure dependency in exec"); |
2006 | #endif |
fe14fcc3 |
2007 | value = (double)do_exec(str_get(str_mortal(st[2]))); |
378cc40b |
2008 | } |
2009 | goto donumset; |
2010 | case O_HEX: |
fe14fcc3 |
2011 | if (maxarg < 1) |
2012 | tmps = str_get(stab_val(defstab)); |
2013 | else |
2014 | tmps = str_get(st[1]); |
2015 | value = (double)scanhex(tmps, 99, &argtype); |
2016 | goto donumset; |
378cc40b |
2017 | |
2018 | case O_OCT: |
a687059c |
2019 | if (maxarg < 1) |
2020 | tmps = str_get(stab_val(defstab)); |
2021 | else |
2022 | tmps = str_get(st[1]); |
99b89507 |
2023 | while (*tmps && (isSPACE(*tmps) || *tmps == '0')) |
fe14fcc3 |
2024 | tmps++; |
2025 | if (*tmps == 'x') |
2026 | value = (double)scanhex(++tmps, 99, &argtype); |
2027 | else |
2028 | value = (double)scanoct(tmps, 99, &argtype); |
378cc40b |
2029 | goto donumset; |
1c3d792e |
2030 | |
2031 | /* These common exits are hidden here in the middle of the switches for the |
99b89507 |
2032 | benefit of those machines with limited branch addressing. Sigh. */ |
1c3d792e |
2033 | |
2034 | array_return: |
2035 | #ifdef DEBUGGING |
2036 | if (debug) { |
2037 | dlevel--; |
2038 | if (debug & 8) { |
2039 | anum = sp - arglast[0]; |
2040 | switch (anum) { |
2041 | case 0: |
2042 | deb("%s RETURNS ()\n",opname[optype]); |
2043 | break; |
2044 | case 1: |
99b89507 |
2045 | deb("%s RETURNS (\"%s\")\n",opname[optype], |
2046 | st[1] ? str_get(st[1]) : ""); |
1c3d792e |
2047 | break; |
2048 | default: |
99b89507 |
2049 | tmps = st[1] ? str_get(st[1]) : ""; |
1c3d792e |
2050 | deb("%s RETURNS %d ARGS (\"%s\",%s\"%s\")\n",opname[optype], |
99b89507 |
2051 | anum,tmps,anum==2?"":"...,", |
2052 | st[anum] ? str_get(st[anum]) : ""); |
1c3d792e |
2053 | break; |
2054 | } |
2055 | } |
2056 | } |
2057 | #endif |
2058 | return sp; |
2059 | |
2060 | say_yes: |
2061 | str = &str_yes; |
2062 | goto normal_return; |
2063 | |
2064 | say_no: |
2065 | str = &str_no; |
2066 | goto normal_return; |
2067 | |
2068 | say_undef: |
2069 | str = &str_undef; |
2070 | goto normal_return; |
2071 | |
2072 | say_zero: |
2073 | value = 0.0; |
2074 | /* FALL THROUGH */ |
2075 | |
2076 | donumset: |
2077 | str_numset(str,value); |
2078 | STABSET(str); |
2079 | st[1] = str; |
2080 | #ifdef DEBUGGING |
2081 | if (debug) { |
2082 | dlevel--; |
2083 | if (debug & 8) |
2084 | deb("%s RETURNS \"%f\"\n",opname[optype],value); |
2085 | } |
2086 | #endif |
2087 | return arglast[0] + 1; |
fe14fcc3 |
2088 | #ifdef SMALLSWITCHES |
2089 | } |
2090 | else |
2091 | switch (optype) { |
2092 | #endif |
378cc40b |
2093 | case O_CHOWN: |
fe14fcc3 |
2094 | #ifdef HAS_CHOWN |
b1248f16 |
2095 | value = (double)apply(optype,arglast); |
2096 | goto donumset; |
2097 | #else |
2098 | fatal("Unsupported function chown"); |
2099 | break; |
2100 | #endif |
378cc40b |
2101 | case O_KILL: |
fe14fcc3 |
2102 | #ifdef HAS_KILL |
b1248f16 |
2103 | value = (double)apply(optype,arglast); |
2104 | goto donumset; |
2105 | #else |
2106 | fatal("Unsupported function kill"); |
2107 | break; |
2108 | #endif |
378cc40b |
2109 | case O_UNLINK: |
b1248f16 |
2110 | case O_CHMOD: |
378cc40b |
2111 | case O_UTIME: |
a687059c |
2112 | value = (double)apply(optype,arglast); |
378cc40b |
2113 | goto donumset; |
2114 | case O_UMASK: |
fe14fcc3 |
2115 | #ifdef HAS_UMASK |
a687059c |
2116 | if (maxarg < 1) { |
2117 | anum = umask(0); |
2118 | (void)umask(anum); |
2119 | } |
2120 | else |
2121 | anum = umask((int)str_gnum(st[1])); |
2122 | value = (double)anum; |
2123 | #ifdef TAINT |
2124 | taintproper("Insecure dependency in umask"); |
2125 | #endif |
378cc40b |
2126 | goto donumset; |
b1248f16 |
2127 | #else |
2128 | fatal("Unsupported function umask"); |
2129 | break; |
2130 | #endif |
fe14fcc3 |
2131 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 |
2132 | case O_MSGGET: |
2133 | case O_SHMGET: |
2134 | case O_SEMGET: |
2135 | if ((anum = do_ipcget(optype, arglast)) == -1) |
2136 | goto say_undef; |
2137 | value = (double)anum; |
2138 | goto donumset; |
2139 | case O_MSGCTL: |
2140 | case O_SHMCTL: |
2141 | case O_SEMCTL: |
2142 | anum = do_ipcctl(optype, arglast); |
2143 | if (anum == -1) |
2144 | goto say_undef; |
2145 | if (anum != 0) { |
2146 | value = (double)anum; |
2147 | goto donumset; |
2148 | } |
2149 | str_set(str,"0 but true"); |
2150 | STABSET(str); |
2151 | break; |
2152 | case O_MSGSND: |
2153 | value = (double)(do_msgsnd(arglast) >= 0); |
2154 | goto donumset; |
2155 | case O_MSGRCV: |
2156 | value = (double)(do_msgrcv(arglast) >= 0); |
2157 | goto donumset; |
2158 | case O_SEMOP: |
2159 | value = (double)(do_semop(arglast) >= 0); |
2160 | goto donumset; |
2161 | case O_SHMREAD: |
2162 | case O_SHMWRITE: |
2163 | value = (double)(do_shmio(optype, arglast) >= 0); |
2164 | goto donumset; |
2165 | #else /* not SYSVIPC */ |
2166 | case O_MSGGET: |
2167 | case O_MSGCTL: |
2168 | case O_MSGSND: |
2169 | case O_MSGRCV: |
2170 | case O_SEMGET: |
2171 | case O_SEMCTL: |
2172 | case O_SEMOP: |
2173 | case O_SHMGET: |
2174 | case O_SHMCTL: |
2175 | case O_SHMREAD: |
2176 | case O_SHMWRITE: |
2177 | fatal("System V IPC is not implemented on this machine"); |
2178 | #endif /* not SYSVIPC */ |
378cc40b |
2179 | case O_RENAME: |
a687059c |
2180 | tmps = str_get(st[1]); |
2181 | tmps2 = str_get(st[2]); |
2182 | #ifdef TAINT |
2183 | taintproper("Insecure dependency in rename"); |
2184 | #endif |
fe14fcc3 |
2185 | #ifdef HAS_RENAME |
a687059c |
2186 | value = (double)(rename(tmps,tmps2) >= 0); |
378cc40b |
2187 | #else |
6eb13c3b |
2188 | if (same_dirent(tmps2, tmps)) /* can always rename to same name */ |
154e51a4 |
2189 | anum = 1; |
2190 | else { |
c623bd54 |
2191 | if (euid || stat(tmps2,&statbuf) < 0 || !S_ISDIR(statbuf.st_mode)) |
154e51a4 |
2192 | (void)UNLINK(tmps2); |
2193 | if (!(anum = link(tmps,tmps2))) |
2194 | anum = UNLINK(tmps); |
2195 | } |
378cc40b |
2196 | value = (double)(anum >= 0); |
2197 | #endif |
2198 | goto donumset; |
2199 | case O_LINK: |
fe14fcc3 |
2200 | #ifdef HAS_LINK |
a687059c |
2201 | tmps = str_get(st[1]); |
2202 | tmps2 = str_get(st[2]); |
2203 | #ifdef TAINT |
2204 | taintproper("Insecure dependency in link"); |
2205 | #endif |
2206 | value = (double)(link(tmps,tmps2) >= 0); |
2207 | goto donumset; |
b1248f16 |
2208 | #else |
2209 | fatal("Unsupported function link"); |
2210 | break; |
2211 | #endif |
a687059c |
2212 | case O_MKDIR: |
2213 | tmps = str_get(st[1]); |
2214 | anum = (int)str_gnum(st[2]); |
2215 | #ifdef TAINT |
2216 | taintproper("Insecure dependency in mkdir"); |
2217 | #endif |
fe14fcc3 |
2218 | #ifdef HAS_MKDIR |
a687059c |
2219 | value = (double)(mkdir(tmps,anum) >= 0); |
bf38876a |
2220 | goto donumset; |
a687059c |
2221 | #else |
bf38876a |
2222 | (void)strcpy(buf,"mkdir "); |
2223 | #endif |
fe14fcc3 |
2224 | #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR) |
a687059c |
2225 | one_liner: |
bf38876a |
2226 | for (tmps2 = buf+6; *tmps; ) { |
2227 | *tmps2++ = '\\'; |
2228 | *tmps2++ = *tmps++; |
2229 | } |
2230 | (void)strcpy(tmps2," 2>&1"); |
a687059c |
2231 | rsfp = mypopen(buf,"r"); |
2232 | if (rsfp) { |
2233 | *buf = '\0'; |
2234 | tmps2 = fgets(buf,sizeof buf,rsfp); |
2235 | (void)mypclose(rsfp); |
2236 | if (tmps2 != Nullch) { |
bf38876a |
2237 | for (errno = 1; errno < sys_nerr; errno++) { |
a687059c |
2238 | if (instr(buf,sys_errlist[errno])) /* you don't see this */ |
2239 | goto say_zero; |
2240 | } |
2241 | errno = 0; |
bf38876a |
2242 | #ifndef EACCES |
2243 | #define EACCES EPERM |
2244 | #endif |
2245 | if (instr(buf,"cannot make")) |
2246 | errno = EEXIST; |
c2ab57d4 |
2247 | else if (instr(buf,"existing file")) |
2248 | errno = EEXIST; |
2249 | else if (instr(buf,"ile exists")) |
2250 | errno = EEXIST; |
bf38876a |
2251 | else if (instr(buf,"non-exist")) |
2252 | errno = ENOENT; |
afd9f252 |
2253 | else if (instr(buf,"does not exist")) |
2254 | errno = ENOENT; |
bf38876a |
2255 | else if (instr(buf,"not empty")) |
2256 | errno = EBUSY; |
2257 | else if (instr(buf,"cannot access")) |
2258 | errno = EACCES; |
2259 | else |
2260 | errno = EPERM; |
a687059c |
2261 | goto say_zero; |
2262 | } |
bf38876a |
2263 | else { /* some mkdirs return no failure indication */ |
2264 | tmps = str_get(st[1]); |
2265 | anum = (stat(tmps,&statbuf) >= 0); |
2266 | if (optype == O_RMDIR) |
2267 | anum = !anum; |
2268 | if (anum) |
2269 | errno = 0; |
2270 | else |
2271 | errno = EACCES; /* a guess */ |
2272 | value = (double)anum; |
2273 | } |
2274 | goto donumset; |
a687059c |
2275 | } |
2276 | else |
2277 | goto say_zero; |
2278 | #endif |
a687059c |
2279 | case O_RMDIR: |
2280 | if (maxarg < 1) |
2281 | tmps = str_get(stab_val(defstab)); |
2282 | else |
2283 | tmps = str_get(st[1]); |
2284 | #ifdef TAINT |
2285 | taintproper("Insecure dependency in rmdir"); |
2286 | #endif |
fe14fcc3 |
2287 | #ifdef HAS_RMDIR |
a687059c |
2288 | value = (double)(rmdir(tmps) >= 0); |
2289 | goto donumset; |
2290 | #else |
bf38876a |
2291 | (void)strcpy(buf,"rmdir "); |
fe14fcc3 |
2292 | goto one_liner; /* see above in HAS_MKDIR */ |
a687059c |
2293 | #endif |
2294 | case O_GETPPID: |
fe14fcc3 |
2295 | #ifdef HAS_GETPPID |
a687059c |
2296 | value = (double)getppid(); |
2297 | goto donumset; |
b1248f16 |
2298 | #else |
2299 | fatal("Unsupported function getppid"); |
2300 | break; |
2301 | #endif |
a687059c |
2302 | case O_GETPGRP: |
fe14fcc3 |
2303 | #ifdef HAS_GETPGRP |
a687059c |
2304 | if (maxarg < 1) |
2305 | anum = 0; |
2306 | else |
2307 | anum = (int)str_gnum(st[1]); |
6e21c824 |
2308 | #ifdef _POSIX_SOURCE |
2309 | if (anum != 0) |
2310 | fatal("POSIX getpgrp can't take an argument"); |
2311 | value = (double)getpgrp(); |
2312 | #else |
a687059c |
2313 | value = (double)getpgrp(anum); |
6e21c824 |
2314 | #endif |
a687059c |
2315 | goto donumset; |
2316 | #else |
2317 | fatal("The getpgrp() function is unimplemented on this machine"); |
2318 | break; |
2319 | #endif |
2320 | case O_SETPGRP: |
fe14fcc3 |
2321 | #ifdef HAS_SETPGRP |
a687059c |
2322 | argtype = (int)str_gnum(st[1]); |
2323 | anum = (int)str_gnum(st[2]); |
2324 | #ifdef TAINT |
2325 | taintproper("Insecure dependency in setpgrp"); |
2326 | #endif |
2327 | value = (double)(setpgrp(argtype,anum) >= 0); |
2328 | goto donumset; |
2329 | #else |
2330 | fatal("The setpgrp() function is unimplemented on this machine"); |
2331 | break; |
2332 | #endif |
2333 | case O_GETPRIORITY: |
fe14fcc3 |
2334 | #ifdef HAS_GETPRIORITY |
a687059c |
2335 | argtype = (int)str_gnum(st[1]); |
2336 | anum = (int)str_gnum(st[2]); |
2337 | value = (double)getpriority(argtype,anum); |
2338 | goto donumset; |
2339 | #else |
2340 | fatal("The getpriority() function is unimplemented on this machine"); |
2341 | break; |
2342 | #endif |
2343 | case O_SETPRIORITY: |
fe14fcc3 |
2344 | #ifdef HAS_SETPRIORITY |
a687059c |
2345 | argtype = (int)str_gnum(st[1]); |
2346 | anum = (int)str_gnum(st[2]); |
2347 | optype = (int)str_gnum(st[3]); |
2348 | #ifdef TAINT |
2349 | taintproper("Insecure dependency in setpriority"); |
2350 | #endif |
2351 | value = (double)(setpriority(argtype,anum,optype) >= 0); |
378cc40b |
2352 | goto donumset; |
a687059c |
2353 | #else |
2354 | fatal("The setpriority() function is unimplemented on this machine"); |
2355 | break; |
2356 | #endif |
2357 | case O_CHROOT: |
fe14fcc3 |
2358 | #ifdef HAS_CHROOT |
a687059c |
2359 | if (maxarg < 1) |
2360 | tmps = str_get(stab_val(defstab)); |
2361 | else |
2362 | tmps = str_get(st[1]); |
2363 | #ifdef TAINT |
2364 | taintproper("Insecure dependency in chroot"); |
2365 | #endif |
2366 | value = (double)(chroot(tmps) >= 0); |
2367 | goto donumset; |
b1248f16 |
2368 | #else |
2369 | fatal("Unsupported function chroot"); |
2370 | break; |
2371 | #endif |
a687059c |
2372 | case O_FCNTL: |
2373 | case O_IOCTL: |
2374 | if (maxarg <= 0) |
2375 | stab = last_in_stab; |
2376 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
2377 | stab = arg[1].arg_ptr.arg_stab; |
2378 | else |
2379 | stab = stabent(str_get(st[1]),TRUE); |
b1248f16 |
2380 | argtype = U_I(str_gnum(st[2])); |
a687059c |
2381 | #ifdef TAINT |
2382 | taintproper("Insecure dependency in ioctl"); |
2383 | #endif |
2384 | anum = do_ctl(optype,stab,argtype,st[3]); |
2385 | if (anum == -1) |
2386 | goto say_undef; |
b1248f16 |
2387 | if (anum != 0) { |
2388 | value = (double)anum; |
a687059c |
2389 | goto donumset; |
b1248f16 |
2390 | } |
a687059c |
2391 | str_set(str,"0 but true"); |
2392 | STABSET(str); |
2393 | break; |
2394 | case O_FLOCK: |
fe14fcc3 |
2395 | #ifdef HAS_FLOCK |
a687059c |
2396 | if (maxarg <= 0) |
2397 | stab = last_in_stab; |
2398 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
2399 | stab = arg[1].arg_ptr.arg_stab; |
2400 | else |
2401 | stab = stabent(str_get(st[1]),TRUE); |
2402 | if (stab && stab_io(stab)) |
2403 | fp = stab_io(stab)->ifp; |
2404 | else |
2405 | fp = Nullfp; |
2406 | if (fp) { |
2407 | argtype = (int)str_gnum(st[2]); |
2408 | value = (double)(flock(fileno(fp),argtype) >= 0); |
2409 | } |
2410 | else |
2411 | value = 0; |
2412 | goto donumset; |
2413 | #else |
2414 | fatal("The flock() function is unimplemented on this machine"); |
2415 | break; |
2416 | #endif |
378cc40b |
2417 | case O_UNSHIFT: |
a687059c |
2418 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
2419 | if (arglast[2] - arglast[1] != 1) |
2420 | do_unshift(ary,arglast); |
378cc40b |
2421 | else { |
c2ab57d4 |
2422 | STR *tmpstr = Str_new(52,0); /* must copy the STR */ |
2423 | str_sset(tmpstr,st[2]); |
378cc40b |
2424 | aunshift(ary,1); |
c2ab57d4 |
2425 | (void)astore(ary,0,tmpstr); |
378cc40b |
2426 | } |
2427 | value = (double)(ary->ary_fill + 1); |
c2ab57d4 |
2428 | goto donumset; |
154e51a4 |
2429 | |
99b89507 |
2430 | case O_TRY: |
2431 | sp = do_try(arg[1].arg_ptr.arg_cmd, |
2432 | gimme,arglast); |
2433 | goto array_return; |
2434 | |
2435 | case O_EVALONCE: |
2436 | sp = do_eval(st[1], O_EVAL, curcmd->c_stash, TRUE, |
2437 | gimme,arglast); |
2438 | if (eval_root) { |
2439 | str_free(arg[1].arg_ptr.arg_str); |
2440 | arg[1].arg_ptr.arg_cmd = eval_root; |
2441 | arg[1].arg_type = (A_CMD|A_DONT); |
2442 | arg[0].arg_type = O_TRY; |
2443 | } |
2444 | goto array_return; |
2445 | |
154e51a4 |
2446 | case O_REQUIRE: |
378cc40b |
2447 | case O_DOFILE: |
2448 | case O_EVAL: |
a687059c |
2449 | if (maxarg < 1) |
2450 | tmpstr = stab_val(defstab); |
2451 | else |
2452 | tmpstr = |
2453 | (arg[1].arg_type & A_MASK) != A_NULL ? st[1] : stab_val(defstab); |
2454 | #ifdef TAINT |
2455 | tainted |= tmpstr->str_tainted; |
2456 | taintproper("Insecure dependency in eval"); |
2457 | #endif |
99b89507 |
2458 | sp = do_eval(tmpstr, optype, curcmd->c_stash, FALSE, |
a687059c |
2459 | gimme,arglast); |
2460 | goto array_return; |
378cc40b |
2461 | |
2462 | case O_FTRREAD: |
2463 | argtype = 0; |
c623bd54 |
2464 | anum = S_IRUSR; |
378cc40b |
2465 | goto check_perm; |
2466 | case O_FTRWRITE: |
2467 | argtype = 0; |
c623bd54 |
2468 | anum = S_IWUSR; |
378cc40b |
2469 | goto check_perm; |
2470 | case O_FTREXEC: |
2471 | argtype = 0; |
c623bd54 |
2472 | anum = S_IXUSR; |
378cc40b |
2473 | goto check_perm; |
2474 | case O_FTEREAD: |
2475 | argtype = 1; |
c623bd54 |
2476 | anum = S_IRUSR; |
378cc40b |
2477 | goto check_perm; |
2478 | case O_FTEWRITE: |
2479 | argtype = 1; |
c623bd54 |
2480 | anum = S_IWUSR; |
378cc40b |
2481 | goto check_perm; |
2482 | case O_FTEEXEC: |
2483 | argtype = 1; |
c623bd54 |
2484 | anum = S_IXUSR; |
378cc40b |
2485 | check_perm: |
a687059c |
2486 | if (mystat(arg,st[1]) < 0) |
2487 | goto say_undef; |
2488 | if (cando(anum,argtype,&statcache)) |
2489 | goto say_yes; |
2490 | goto say_no; |
378cc40b |
2491 | |
2492 | case O_FTIS: |
a687059c |
2493 | if (mystat(arg,st[1]) < 0) |
2494 | goto say_undef; |
2495 | goto say_yes; |
378cc40b |
2496 | case O_FTEOWNED: |
2497 | case O_FTROWNED: |
a687059c |
2498 | if (mystat(arg,st[1]) < 0) |
2499 | goto say_undef; |
2500 | if (statcache.st_uid == (optype == O_FTEOWNED ? euid : uid) ) |
2501 | goto say_yes; |
2502 | goto say_no; |
378cc40b |
2503 | case O_FTZERO: |
a687059c |
2504 | if (mystat(arg,st[1]) < 0) |
2505 | goto say_undef; |
2506 | if (!statcache.st_size) |
2507 | goto say_yes; |
2508 | goto say_no; |
378cc40b |
2509 | case O_FTSIZE: |
a687059c |
2510 | if (mystat(arg,st[1]) < 0) |
2511 | goto say_undef; |
154e51a4 |
2512 | value = (double)statcache.st_size; |
2513 | goto donumset; |
378cc40b |
2514 | |
c2ab57d4 |
2515 | case O_FTMTIME: |
2516 | if (mystat(arg,st[1]) < 0) |
2517 | goto say_undef; |
2518 | value = (double)(basetime - statcache.st_mtime) / 86400.0; |
2519 | goto donumset; |
2520 | case O_FTATIME: |
2521 | if (mystat(arg,st[1]) < 0) |
2522 | goto say_undef; |
2523 | value = (double)(basetime - statcache.st_atime) / 86400.0; |
2524 | goto donumset; |
2525 | case O_FTCTIME: |
2526 | if (mystat(arg,st[1]) < 0) |
2527 | goto say_undef; |
2528 | value = (double)(basetime - statcache.st_ctime) / 86400.0; |
2529 | goto donumset; |
2530 | |
378cc40b |
2531 | case O_FTSOCK: |
c623bd54 |
2532 | if (mystat(arg,st[1]) < 0) |
2533 | goto say_undef; |
2534 | if (S_ISSOCK(statcache.st_mode)) |
2535 | goto say_yes; |
a687059c |
2536 | goto say_no; |
378cc40b |
2537 | case O_FTCHR: |
c623bd54 |
2538 | if (mystat(arg,st[1]) < 0) |
2539 | goto say_undef; |
2540 | if (S_ISCHR(statcache.st_mode)) |
2541 | goto say_yes; |
2542 | goto say_no; |
378cc40b |
2543 | case O_FTBLK: |
c623bd54 |
2544 | if (mystat(arg,st[1]) < 0) |
2545 | goto say_undef; |
2546 | if (S_ISBLK(statcache.st_mode)) |
2547 | goto say_yes; |
b1248f16 |
2548 | goto say_no; |
378cc40b |
2549 | case O_FTFILE: |
c623bd54 |
2550 | if (mystat(arg,st[1]) < 0) |
2551 | goto say_undef; |
2552 | if (S_ISREG(statcache.st_mode)) |
2553 | goto say_yes; |
2554 | goto say_no; |
378cc40b |
2555 | case O_FTDIR: |
a687059c |
2556 | if (mystat(arg,st[1]) < 0) |
2557 | goto say_undef; |
c623bd54 |
2558 | if (S_ISDIR(statcache.st_mode)) |
a687059c |
2559 | goto say_yes; |
2560 | goto say_no; |
378cc40b |
2561 | case O_FTPIPE: |
c623bd54 |
2562 | if (mystat(arg,st[1]) < 0) |
2563 | goto say_undef; |
2564 | if (S_ISFIFO(statcache.st_mode)) |
2565 | goto say_yes; |
a687059c |
2566 | goto say_no; |
378cc40b |
2567 | case O_FTLINK: |
c623bd54 |
2568 | if (mylstat(arg,st[1]) < 0) |
a687059c |
2569 | goto say_undef; |
c623bd54 |
2570 | if (S_ISLNK(statcache.st_mode)) |
a687059c |
2571 | goto say_yes; |
a687059c |
2572 | goto say_no; |
378cc40b |
2573 | case O_SYMLINK: |
fe14fcc3 |
2574 | #ifdef HAS_SYMLINK |
a687059c |
2575 | tmps = str_get(st[1]); |
2576 | tmps2 = str_get(st[2]); |
2577 | #ifdef TAINT |
2578 | taintproper("Insecure dependency in symlink"); |
2579 | #endif |
2580 | value = (double)(symlink(tmps,tmps2) >= 0); |
378cc40b |
2581 | goto donumset; |
2582 | #else |
b1248f16 |
2583 | fatal("Unsupported function symlink"); |
378cc40b |
2584 | #endif |
a687059c |
2585 | case O_READLINK: |
fe14fcc3 |
2586 | #ifdef HAS_SYMLINK |
a687059c |
2587 | if (maxarg < 1) |
2588 | tmps = str_get(stab_val(defstab)); |
2589 | else |
2590 | tmps = str_get(st[1]); |
2591 | anum = readlink(tmps,buf,sizeof buf); |
2592 | if (anum < 0) |
2593 | goto say_undef; |
2594 | str_nset(str,buf,anum); |
2595 | break; |
2596 | #else |
fe14fcc3 |
2597 | goto say_undef; /* just pretend it's a normal file */ |
a687059c |
2598 | #endif |
378cc40b |
2599 | case O_FTSUID: |
b1248f16 |
2600 | #ifdef S_ISUID |
378cc40b |
2601 | anum = S_ISUID; |
2602 | goto check_xid; |
b1248f16 |
2603 | #else |
2604 | goto say_no; |
2605 | #endif |
378cc40b |
2606 | case O_FTSGID: |
b1248f16 |
2607 | #ifdef S_ISGID |
378cc40b |
2608 | anum = S_ISGID; |
2609 | goto check_xid; |
b1248f16 |
2610 | #else |
2611 | goto say_no; |
2612 | #endif |
378cc40b |
2613 | case O_FTSVTX: |
b1248f16 |
2614 | #ifdef S_ISVTX |
378cc40b |
2615 | anum = S_ISVTX; |
b1248f16 |
2616 | #else |
2617 | goto say_no; |
2618 | #endif |
378cc40b |
2619 | check_xid: |
a687059c |
2620 | if (mystat(arg,st[1]) < 0) |
2621 | goto say_undef; |
2622 | if (statcache.st_mode & anum) |
2623 | goto say_yes; |
2624 | goto say_no; |
378cc40b |
2625 | case O_FTTTY: |
a687059c |
2626 | if (arg[1].arg_type & A_DONT) { |
378cc40b |
2627 | stab = arg[1].arg_ptr.arg_stab; |
2628 | tmps = ""; |
2629 | } |
2630 | else |
a687059c |
2631 | stab = stabent(tmps = str_get(st[1]),FALSE); |
2632 | if (stab && stab_io(stab) && stab_io(stab)->ifp) |
2633 | anum = fileno(stab_io(stab)->ifp); |
99b89507 |
2634 | else if (isDIGIT(*tmps)) |
378cc40b |
2635 | anum = atoi(tmps); |
2636 | else |
a687059c |
2637 | goto say_undef; |
378cc40b |
2638 | if (isatty(anum)) |
a687059c |
2639 | goto say_yes; |
2640 | goto say_no; |
378cc40b |
2641 | case O_FTTEXT: |
2642 | case O_FTBINARY: |
a687059c |
2643 | str = do_fttext(arg,st[1]); |
378cc40b |
2644 | break; |
fe14fcc3 |
2645 | #ifdef HAS_SOCKET |
a687059c |
2646 | case O_SOCKET: |
2647 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2648 | stab = arg[1].arg_ptr.arg_stab; |
2649 | else |
2650 | stab = stabent(str_get(st[1]),TRUE); |
2651 | #ifndef lint |
2652 | value = (double)do_socket(stab,arglast); |
2653 | #else |
2654 | (void)do_socket(stab,arglast); |
2655 | #endif |
2656 | goto donumset; |
2657 | case O_BIND: |
2658 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2659 | stab = arg[1].arg_ptr.arg_stab; |
2660 | else |
2661 | stab = stabent(str_get(st[1]),TRUE); |
2662 | #ifndef lint |
2663 | value = (double)do_bind(stab,arglast); |
2664 | #else |
2665 | (void)do_bind(stab,arglast); |
2666 | #endif |
2667 | goto donumset; |
2668 | case O_CONNECT: |
2669 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2670 | stab = arg[1].arg_ptr.arg_stab; |
2671 | else |
2672 | stab = stabent(str_get(st[1]),TRUE); |
2673 | #ifndef lint |
2674 | value = (double)do_connect(stab,arglast); |
2675 | #else |
2676 | (void)do_connect(stab,arglast); |
2677 | #endif |
2678 | goto donumset; |
2679 | case O_LISTEN: |
2680 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2681 | stab = arg[1].arg_ptr.arg_stab; |
2682 | else |
2683 | stab = stabent(str_get(st[1]),TRUE); |
2684 | #ifndef lint |
2685 | value = (double)do_listen(stab,arglast); |
2686 | #else |
2687 | (void)do_listen(stab,arglast); |
2688 | #endif |
2689 | goto donumset; |
2690 | case O_ACCEPT: |
2691 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2692 | stab = arg[1].arg_ptr.arg_stab; |
2693 | else |
2694 | stab = stabent(str_get(st[1]),TRUE); |
2695 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
2696 | stab2 = arg[2].arg_ptr.arg_stab; |
2697 | else |
2698 | stab2 = stabent(str_get(st[2]),TRUE); |
2699 | do_accept(str,stab,stab2); |
2700 | STABSET(str); |
2701 | break; |
2702 | case O_GHBYNAME: |
2703 | if (maxarg < 1) |
2704 | goto say_undef; |
2705 | case O_GHBYADDR: |
2706 | case O_GHOSTENT: |
2707 | sp = do_ghent(optype, |
2708 | gimme,arglast); |
2709 | goto array_return; |
2710 | case O_GNBYNAME: |
2711 | if (maxarg < 1) |
2712 | goto say_undef; |
2713 | case O_GNBYADDR: |
2714 | case O_GNETENT: |
2715 | sp = do_gnent(optype, |
2716 | gimme,arglast); |
2717 | goto array_return; |
2718 | case O_GPBYNAME: |
2719 | if (maxarg < 1) |
2720 | goto say_undef; |
2721 | case O_GPBYNUMBER: |
2722 | case O_GPROTOENT: |
2723 | sp = do_gpent(optype, |
2724 | gimme,arglast); |
2725 | goto array_return; |
2726 | case O_GSBYNAME: |
2727 | if (maxarg < 1) |
2728 | goto say_undef; |
2729 | case O_GSBYPORT: |
2730 | case O_GSERVENT: |
2731 | sp = do_gsent(optype, |
2732 | gimme,arglast); |
2733 | goto array_return; |
2734 | case O_SHOSTENT: |
2735 | value = (double) sethostent((int)str_gnum(st[1])); |
2736 | goto donumset; |
2737 | case O_SNETENT: |
2738 | value = (double) setnetent((int)str_gnum(st[1])); |
2739 | goto donumset; |
2740 | case O_SPROTOENT: |
2741 | value = (double) setprotoent((int)str_gnum(st[1])); |
2742 | goto donumset; |
2743 | case O_SSERVENT: |
2744 | value = (double) setservent((int)str_gnum(st[1])); |
2745 | goto donumset; |
2746 | case O_EHOSTENT: |
2747 | value = (double) endhostent(); |
2748 | goto donumset; |
2749 | case O_ENETENT: |
2750 | value = (double) endnetent(); |
2751 | goto donumset; |
2752 | case O_EPROTOENT: |
2753 | value = (double) endprotoent(); |
2754 | goto donumset; |
2755 | case O_ESERVENT: |
2756 | value = (double) endservent(); |
2757 | goto donumset; |
154e51a4 |
2758 | case O_SOCKPAIR: |
a687059c |
2759 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2760 | stab = arg[1].arg_ptr.arg_stab; |
2761 | else |
2762 | stab = stabent(str_get(st[1]),TRUE); |
2763 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
2764 | stab2 = arg[2].arg_ptr.arg_stab; |
2765 | else |
2766 | stab2 = stabent(str_get(st[2]),TRUE); |
2767 | #ifndef lint |
2768 | value = (double)do_spair(stab,stab2,arglast); |
2769 | #else |
2770 | (void)do_spair(stab,stab2,arglast); |
2771 | #endif |
2772 | goto donumset; |
2773 | case O_SHUTDOWN: |
2774 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2775 | stab = arg[1].arg_ptr.arg_stab; |
2776 | else |
2777 | stab = stabent(str_get(st[1]),TRUE); |
2778 | #ifndef lint |
2779 | value = (double)do_shutdown(stab,arglast); |
2780 | #else |
2781 | (void)do_shutdown(stab,arglast); |
2782 | #endif |
2783 | goto donumset; |
2784 | case O_GSOCKOPT: |
2785 | case O_SSOCKOPT: |
2786 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2787 | stab = arg[1].arg_ptr.arg_stab; |
2788 | else |
2789 | stab = stabent(str_get(st[1]),TRUE); |
2790 | sp = do_sopt(optype,stab,arglast); |
2791 | goto array_return; |
2792 | case O_GETSOCKNAME: |
2793 | case O_GETPEERNAME: |
2794 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2795 | stab = arg[1].arg_ptr.arg_stab; |
2796 | else |
2797 | stab = stabent(str_get(st[1]),TRUE); |
c2ab57d4 |
2798 | if (!stab) |
2799 | goto say_undef; |
a687059c |
2800 | sp = do_getsockname(optype,stab,arglast); |
2801 | goto array_return; |
2802 | |
fe14fcc3 |
2803 | #else /* HAS_SOCKET not defined */ |
a687059c |
2804 | case O_SOCKET: |
2805 | case O_BIND: |
2806 | case O_CONNECT: |
2807 | case O_LISTEN: |
2808 | case O_ACCEPT: |
154e51a4 |
2809 | case O_SOCKPAIR: |
a687059c |
2810 | case O_GHBYNAME: |
2811 | case O_GHBYADDR: |
2812 | case O_GHOSTENT: |
2813 | case O_GNBYNAME: |
2814 | case O_GNBYADDR: |
2815 | case O_GNETENT: |
2816 | case O_GPBYNAME: |
2817 | case O_GPBYNUMBER: |
2818 | case O_GPROTOENT: |
2819 | case O_GSBYNAME: |
2820 | case O_GSBYPORT: |
2821 | case O_GSERVENT: |
2822 | case O_SHOSTENT: |
2823 | case O_SNETENT: |
2824 | case O_SPROTOENT: |
2825 | case O_SSERVENT: |
2826 | case O_EHOSTENT: |
2827 | case O_ENETENT: |
2828 | case O_EPROTOENT: |
2829 | case O_ESERVENT: |
2830 | case O_SHUTDOWN: |
2831 | case O_GSOCKOPT: |
2832 | case O_SSOCKOPT: |
2833 | case O_GETSOCKNAME: |
2834 | case O_GETPEERNAME: |
2835 | badsock: |
2836 | fatal("Unsupported socket function"); |
fe14fcc3 |
2837 | #endif /* HAS_SOCKET */ |
154e51a4 |
2838 | case O_SSELECT: |
fe14fcc3 |
2839 | #ifdef HAS_SELECT |
154e51a4 |
2840 | sp = do_select(gimme,arglast); |
2841 | goto array_return; |
2842 | #else |
2843 | fatal("select not implemented"); |
2844 | #endif |
a687059c |
2845 | case O_FILENO: |
bf38876a |
2846 | if (maxarg < 1) |
2847 | goto say_undef; |
a687059c |
2848 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2849 | stab = arg[1].arg_ptr.arg_stab; |
2850 | else |
2851 | stab = stabent(str_get(st[1]),TRUE); |
2852 | if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp)) |
2853 | goto say_undef; |
2854 | value = fileno(fp); |
2855 | goto donumset; |
b1248f16 |
2856 | case O_BINMODE: |
2857 | if (maxarg < 1) |
2858 | goto say_undef; |
2859 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2860 | stab = arg[1].arg_ptr.arg_stab; |
2861 | else |
2862 | stab = stabent(str_get(st[1]),TRUE); |
2863 | if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp)) |
2864 | goto say_undef; |
2865 | #ifdef MSDOS |
2866 | str_set(str, (setmode(fileno(fp), O_BINARY) != -1) ? Yes : No); |
2867 | #else |
2868 | str_set(str, Yes); |
2869 | #endif |
2870 | STABSET(str); |
2871 | break; |
a687059c |
2872 | case O_VEC: |
2873 | sp = do_vec(str == st[1], arg->arg_ptr.arg_str, arglast); |
2874 | goto array_return; |
2875 | case O_GPWNAM: |
2876 | case O_GPWUID: |
2877 | case O_GPWENT: |
fe14fcc3 |
2878 | #ifdef HAS_PASSWD |
a687059c |
2879 | sp = do_gpwent(optype, |
2880 | gimme,arglast); |
2881 | goto array_return; |
2882 | case O_SPWENT: |
2883 | value = (double) setpwent(); |
2884 | goto donumset; |
2885 | case O_EPWENT: |
2886 | value = (double) endpwent(); |
2887 | goto donumset; |
b1248f16 |
2888 | #else |
2889 | case O_EPWENT: |
2890 | case O_SPWENT: |
2891 | fatal("Unsupported password function"); |
2892 | break; |
2893 | #endif |
a687059c |
2894 | case O_GGRNAM: |
2895 | case O_GGRGID: |
2896 | case O_GGRENT: |
fe14fcc3 |
2897 | #ifdef HAS_GROUP |
a687059c |
2898 | sp = do_ggrent(optype, |
2899 | gimme,arglast); |
2900 | goto array_return; |
2901 | case O_SGRENT: |
2902 | value = (double) setgrent(); |
2903 | goto donumset; |
2904 | case O_EGRENT: |
2905 | value = (double) endgrent(); |
2906 | goto donumset; |
b1248f16 |
2907 | #else |
2908 | case O_EGRENT: |
2909 | case O_SGRENT: |
2910 | fatal("Unsupported group function"); |
2911 | break; |
2912 | #endif |
a687059c |
2913 | case O_GETLOGIN: |
fe14fcc3 |
2914 | #ifdef HAS_GETLOGIN |
a687059c |
2915 | if (!(tmps = getlogin())) |
2916 | goto say_undef; |
2917 | str_set(str,tmps); |
b1248f16 |
2918 | #else |
2919 | fatal("Unsupported function getlogin"); |
2920 | #endif |
a687059c |
2921 | break; |
6e21c824 |
2922 | case O_OPEN_DIR: |
a687059c |
2923 | case O_READDIR: |
2924 | case O_TELLDIR: |
2925 | case O_SEEKDIR: |
2926 | case O_REWINDDIR: |
2927 | case O_CLOSEDIR: |
bf38876a |
2928 | if (maxarg < 1) |
2929 | goto say_undef; |
a687059c |
2930 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2931 | stab = arg[1].arg_ptr.arg_stab; |
2932 | else |
2933 | stab = stabent(str_get(st[1]),TRUE); |
c2ab57d4 |
2934 | if (!stab) |
2935 | goto say_undef; |
a687059c |
2936 | sp = do_dirop(optype,stab,gimme,arglast); |
2937 | goto array_return; |
2938 | case O_SYSCALL: |
2939 | value = (double)do_syscall(arglast); |
2940 | goto donumset; |
afd9f252 |
2941 | case O_PIPE: |
fe14fcc3 |
2942 | #ifdef HAS_PIPE |
afd9f252 |
2943 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2944 | stab = arg[1].arg_ptr.arg_stab; |
2945 | else |
2946 | stab = stabent(str_get(st[1]),TRUE); |
2947 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
2948 | stab2 = arg[2].arg_ptr.arg_stab; |
2949 | else |
2950 | stab2 = stabent(str_get(st[2]),TRUE); |
2951 | do_pipe(str,stab,stab2); |
2952 | STABSET(str); |
b1248f16 |
2953 | #else |
2954 | fatal("Unsupported function pipe"); |
2955 | #endif |
afd9f252 |
2956 | break; |
378cc40b |
2957 | } |
a687059c |
2958 | |
2959 | normal_return: |
2960 | st[1] = str; |
378cc40b |
2961 | #ifdef DEBUGGING |
2962 | if (debug) { |
2963 | dlevel--; |
2964 | if (debug & 8) |
2965 | deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str)); |
2966 | } |
2967 | #endif |
a687059c |
2968 | return arglast[0] + 1; |
378cc40b |
2969 | } |