Commit | Line | Data |
b1248f16 |
1 | /* $Header: eval.c,v 3.0.1.6 90/03/27 15:53:51 lwall Locked $ |
a687059c |
2 | * |
3 | * Copyright (c) 1989, Larry Wall |
4 | * |
5 | * You may distribute under the terms of the GNU General Public License |
6 | * as specified in the README file that comes with the perl 3.0 kit. |
378cc40b |
7 | * |
8 | * $Log: eval.c,v $ |
b1248f16 |
9 | * Revision 3.0.1.6 90/03/27 15:53:51 lwall |
10 | * patch16: MSDOS support |
11 | * patch16: support for machines that can't cast negative floats to unsigned ints |
12 | * patch16: ioctl didn't return values correctly |
13 | * |
79a0689e |
14 | * Revision 3.0.1.5 90/03/12 16:37:40 lwall |
15 | * patch13: undef $/ didn't work as advertised |
16 | * patch13: added list slice operator (LIST)[LIST] |
17 | * patch13: added splice operator: @oldelems = splice(@array,$offset,$len,LIST) |
18 | * |
afd9f252 |
19 | * Revision 3.0.1.4 90/02/28 17:36:59 lwall |
20 | * patch9: added pipe function |
21 | * patch9: a return in scalar context wouldn't return array |
22 | * patch9: !~ now always returns scalar even in array context |
23 | * patch9: some machines can't cast float to long with high bit set |
24 | * patch9: piped opens returned undef in child |
25 | * patch9: @array in scalar context now returns length of array |
26 | * patch9: chdir; coredumped |
27 | * patch9: wait no longer ignores signals |
28 | * patch9: mkdir now handles odd versions of /bin/mkdir |
29 | * patch9: -l FILEHANDLE now disallowed |
30 | * |
663a0e37 |
31 | * Revision 3.0.1.3 89/12/21 20:03:05 lwall |
32 | * patch7: errno may now be a macro with an lvalue |
33 | * patch7: ANSI strerror() is now supported |
34 | * patch7: send() didn't allow a TO argument |
35 | * patch7: ord() now always returns positive even on signed char machines |
36 | * |
0d3e774c |
37 | * Revision 3.0.1.2 89/11/17 15:19:34 lwall |
663a0e37 |
38 | * patch5: constant numeric subscripts get lost inside ?: |
0d3e774c |
39 | * |
bf38876a |
40 | * Revision 3.0.1.1 89/11/11 04:31:51 lwall |
41 | * patch2: mkdir and rmdir needed to quote argument when passed to shell |
42 | * patch2: mkdir and rmdir now return better error codes |
43 | * patch2: fileno, seekdir, rewinddir and closedir now disallow defaults |
44 | * |
a687059c |
45 | * Revision 3.0 89/10/18 15:17:04 lwall |
46 | * 3.0 baseline |
378cc40b |
47 | * |
48 | */ |
49 | |
50 | #include "EXTERN.h" |
51 | #include "perl.h" |
52 | |
53 | #include <signal.h> |
378cc40b |
54 | |
b1248f16 |
55 | #ifdef I_FCNTL |
56 | #include <fcntl.h> |
57 | #endif |
a687059c |
58 | #ifdef I_VFORK |
59 | # include <vfork.h> |
60 | #endif |
61 | |
378cc40b |
62 | #ifdef VOIDSIG |
63 | static void (*ihand)(); |
64 | static void (*qhand)(); |
65 | #else |
66 | static int (*ihand)(); |
67 | static int (*qhand)(); |
68 | #endif |
69 | |
70 | ARG *debarg; |
71 | STR str_args; |
a687059c |
72 | static STAB *stab2; |
73 | static STIO *stio; |
74 | static struct lstring *lstr; |
79a0689e |
75 | static int old_record_separator; |
afd9f252 |
76 | extern int wantarray; |
378cc40b |
77 | |
a687059c |
78 | double sin(), cos(), atan2(), pow(); |
79 | |
80 | char *getlogin(); |
81 | |
a687059c |
82 | int |
83 | eval(arg,gimme,sp) |
378cc40b |
84 | register ARG *arg; |
a687059c |
85 | int gimme; |
86 | register int sp; |
378cc40b |
87 | { |
88 | register STR *str; |
89 | register int anum; |
90 | register int optype; |
a687059c |
91 | register STR **st; |
378cc40b |
92 | int maxarg; |
378cc40b |
93 | double value; |
378cc40b |
94 | register char *tmps; |
95 | char *tmps2; |
96 | int argflags; |
97 | int argtype; |
98 | union argptr argptr; |
a687059c |
99 | int arglast[8]; /* highest sp for arg--valid only for non-O_LIST args */ |
378cc40b |
100 | unsigned long tmplong; |
101 | long when; |
102 | FILE *fp; |
103 | STR *tmpstr; |
104 | FCMD *form; |
105 | STAB *stab; |
106 | ARRAY *ary; |
107 | bool assigning = FALSE; |
108 | double exp(), log(), sqrt(), modf(); |
109 | char *crypt(), *getenv(); |
a687059c |
110 | extern void grow_dlevel(); |
378cc40b |
111 | |
112 | if (!arg) |
a687059c |
113 | goto say_undef; |
378cc40b |
114 | optype = arg->arg_type; |
a687059c |
115 | maxarg = arg->arg_len; |
116 | arglast[0] = sp; |
117 | str = arg->arg_ptr.arg_str; |
118 | if (sp + maxarg > stack->ary_max) |
119 | astore(stack, sp + maxarg, Nullstr); |
120 | st = stack->ary_array; |
121 | |
378cc40b |
122 | #ifdef DEBUGGING |
123 | if (debug) { |
124 | if (debug & 8) { |
125 | deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg); |
126 | } |
127 | debname[dlevel] = opname[optype][0]; |
a687059c |
128 | debdelim[dlevel] = ':'; |
129 | if (++dlevel >= dlmax) |
130 | grow_dlevel(); |
378cc40b |
131 | } |
132 | #endif |
378cc40b |
133 | |
a687059c |
134 | #include "evalargs.xc" |
135 | |
136 | st += arglast[0]; |
378cc40b |
137 | switch (optype) { |
a687059c |
138 | case O_RCAT: |
139 | STABSET(str); |
140 | break; |
378cc40b |
141 | case O_ITEM: |
a687059c |
142 | if (gimme == G_ARRAY) |
378cc40b |
143 | goto array_return; |
a687059c |
144 | STR_SSET(str,st[1]); |
378cc40b |
145 | STABSET(str); |
146 | break; |
147 | case O_ITEM2: |
a687059c |
148 | if (gimme == G_ARRAY) |
149 | goto array_return; |
150 | --anum; |
151 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
378cc40b |
152 | STABSET(str); |
153 | break; |
154 | case O_ITEM3: |
a687059c |
155 | if (gimme == G_ARRAY) |
156 | goto array_return; |
157 | --anum; |
158 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
378cc40b |
159 | STABSET(str); |
160 | break; |
161 | case O_CONCAT: |
a687059c |
162 | STR_SSET(str,st[1]); |
163 | str_scat(str,st[2]); |
378cc40b |
164 | STABSET(str); |
165 | break; |
166 | case O_REPEAT: |
a687059c |
167 | STR_SSET(str,st[1]); |
168 | anum = (int)str_gnum(st[2]); |
378cc40b |
169 | if (anum >= 1) { |
afd9f252 |
170 | tmpstr = Str_new(50, 0); |
378cc40b |
171 | str_sset(tmpstr,str); |
afd9f252 |
172 | tmps = str_get(tmpstr); /* force to be string */ |
173 | STR_GROW(str, (anum * str->str_cur) + 1); |
174 | repeatcpy(str->str_ptr, tmps, tmpstr->str_cur, anum); |
79a0689e |
175 | str->str_cur *= anum; |
176 | str->str_ptr[str->str_cur] = '\0'; |
378cc40b |
177 | } |
178 | else |
179 | str_sset(str,&str_no); |
180 | STABSET(str); |
181 | break; |
182 | case O_MATCH: |
a687059c |
183 | sp = do_match(str,arg, |
184 | gimme,arglast); |
185 | if (gimme == G_ARRAY) |
378cc40b |
186 | goto array_return; |
378cc40b |
187 | STABSET(str); |
188 | break; |
189 | case O_NMATCH: |
a687059c |
190 | sp = do_match(str,arg, |
afd9f252 |
191 | G_SCALAR,arglast); |
a687059c |
192 | str_sset(str, str_true(str) ? &str_no : &str_yes); |
378cc40b |
193 | STABSET(str); |
194 | break; |
195 | case O_SUBST: |
a687059c |
196 | sp = do_subst(str,arg,arglast[0]); |
197 | goto array_return; |
378cc40b |
198 | case O_NSUBST: |
a687059c |
199 | sp = do_subst(str,arg,arglast[0]); |
378cc40b |
200 | str = arg->arg_ptr.arg_str; |
a687059c |
201 | str_set(str, str_true(str) ? No : Yes); |
202 | goto array_return; |
378cc40b |
203 | case O_ASSIGN: |
a687059c |
204 | if (arg[1].arg_flags & AF_ARYOK) { |
205 | if (arg->arg_len == 1) { |
206 | arg->arg_type = O_LOCAL; |
a687059c |
207 | goto local; |
208 | } |
209 | else { |
210 | arg->arg_type = O_AASSIGN; |
211 | goto aassign; |
212 | } |
213 | } |
378cc40b |
214 | else { |
a687059c |
215 | arg->arg_type = O_SASSIGN; |
216 | goto sassign; |
378cc40b |
217 | } |
a687059c |
218 | case O_LOCAL: |
219 | local: |
220 | arglast[2] = arglast[1]; /* push a null array */ |
221 | /* FALL THROUGH */ |
222 | case O_AASSIGN: |
223 | aassign: |
224 | sp = do_assign(arg, |
225 | gimme,arglast); |
226 | goto array_return; |
227 | case O_SASSIGN: |
228 | sassign: |
229 | STR_SSET(str, st[2]); |
230 | STABSET(str); |
378cc40b |
231 | break; |
232 | case O_CHOP: |
a687059c |
233 | st -= arglast[0]; |
378cc40b |
234 | str = arg->arg_ptr.arg_str; |
a687059c |
235 | for (sp = arglast[0] + 1; sp <= arglast[1]; sp++) |
236 | do_chop(str,st[sp]); |
237 | st += arglast[0]; |
378cc40b |
238 | break; |
a687059c |
239 | case O_DEFINED: |
240 | if (arg[1].arg_type & A_DONT) { |
241 | sp = do_defined(str,arg, |
242 | gimme,arglast); |
243 | goto array_return; |
244 | } |
245 | else if (str->str_pok || str->str_nok) |
246 | goto say_yes; |
247 | goto say_no; |
248 | case O_UNDEF: |
249 | if (arg[1].arg_type & A_DONT) { |
250 | sp = do_undef(str,arg, |
251 | gimme,arglast); |
252 | goto array_return; |
253 | } |
254 | else if (str != stab_val(defstab)) { |
255 | str->str_pok = str->str_nok = 0; |
256 | STABSET(str); |
257 | } |
258 | goto say_undef; |
378cc40b |
259 | case O_STUDY: |
a687059c |
260 | sp = do_study(str,arg, |
261 | gimme,arglast); |
262 | goto array_return; |
263 | case O_POW: |
264 | value = str_gnum(st[1]); |
265 | value = pow(value,str_gnum(st[2])); |
378cc40b |
266 | goto donumset; |
267 | case O_MULTIPLY: |
a687059c |
268 | value = str_gnum(st[1]); |
269 | value *= str_gnum(st[2]); |
378cc40b |
270 | goto donumset; |
271 | case O_DIVIDE: |
a687059c |
272 | if ((value = str_gnum(st[2])) == 0.0) |
378cc40b |
273 | fatal("Illegal division by zero"); |
a687059c |
274 | value = str_gnum(st[1]) / value; |
378cc40b |
275 | goto donumset; |
276 | case O_MODULO: |
a687059c |
277 | tmplong = (long) str_gnum(st[2]); |
278 | if (tmplong == 0L) |
378cc40b |
279 | fatal("Illegal modulus zero"); |
a687059c |
280 | when = (long)str_gnum(st[1]); |
281 | #ifndef lint |
282 | if (when >= 0) |
283 | value = (double)(when % tmplong); |
284 | else |
285 | value = (double)(tmplong - (-when % tmplong)); |
286 | #endif |
378cc40b |
287 | goto donumset; |
288 | case O_ADD: |
a687059c |
289 | value = str_gnum(st[1]); |
290 | value += str_gnum(st[2]); |
378cc40b |
291 | goto donumset; |
292 | case O_SUBTRACT: |
a687059c |
293 | value = str_gnum(st[1]); |
294 | value -= str_gnum(st[2]); |
378cc40b |
295 | goto donumset; |
296 | case O_LEFT_SHIFT: |
a687059c |
297 | value = str_gnum(st[1]); |
298 | anum = (int)str_gnum(st[2]); |
299 | #ifndef lint |
b1248f16 |
300 | value = (double)(U_L(value) << anum); |
a687059c |
301 | #endif |
378cc40b |
302 | goto donumset; |
303 | case O_RIGHT_SHIFT: |
a687059c |
304 | value = str_gnum(st[1]); |
305 | anum = (int)str_gnum(st[2]); |
306 | #ifndef lint |
b1248f16 |
307 | value = (double)(U_L(value) >> anum); |
a687059c |
308 | #endif |
378cc40b |
309 | goto donumset; |
310 | case O_LT: |
a687059c |
311 | value = str_gnum(st[1]); |
312 | value = (value < str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
313 | goto donumset; |
314 | case O_GT: |
a687059c |
315 | value = str_gnum(st[1]); |
316 | value = (value > str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
317 | goto donumset; |
318 | case O_LE: |
a687059c |
319 | value = str_gnum(st[1]); |
320 | value = (value <= str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
321 | goto donumset; |
322 | case O_GE: |
a687059c |
323 | value = str_gnum(st[1]); |
324 | value = (value >= str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
325 | goto donumset; |
326 | case O_EQ: |
a687059c |
327 | if (dowarn) { |
328 | if ((!st[1]->str_nok && !looks_like_number(st[1])) || |
329 | (!st[2]->str_nok && !looks_like_number(st[2])) ) |
330 | warn("Possible use of == on string value"); |
331 | } |
332 | value = str_gnum(st[1]); |
333 | value = (value == str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
334 | goto donumset; |
335 | case O_NE: |
a687059c |
336 | value = str_gnum(st[1]); |
337 | value = (value != str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
338 | goto donumset; |
339 | case O_BIT_AND: |
a687059c |
340 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
341 | value = str_gnum(st[1]); |
342 | #ifndef lint |
b1248f16 |
343 | value = (double)(U_L(value) & U_L(str_gnum(st[2]))); |
a687059c |
344 | #endif |
345 | goto donumset; |
346 | } |
347 | else |
348 | do_vop(optype,str,st[1],st[2]); |
349 | break; |
378cc40b |
350 | case O_XOR: |
a687059c |
351 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
352 | value = str_gnum(st[1]); |
353 | #ifndef lint |
b1248f16 |
354 | value = (double)(U_L(value) ^ U_L(str_gnum(st[2]))); |
a687059c |
355 | #endif |
356 | goto donumset; |
357 | } |
358 | else |
359 | do_vop(optype,str,st[1],st[2]); |
360 | break; |
378cc40b |
361 | case O_BIT_OR: |
a687059c |
362 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
363 | value = str_gnum(st[1]); |
364 | #ifndef lint |
b1248f16 |
365 | value = (double)(U_L(value) | U_L(str_gnum(st[2]))); |
a687059c |
366 | #endif |
367 | goto donumset; |
368 | } |
369 | else |
370 | do_vop(optype,str,st[1],st[2]); |
371 | break; |
372 | /* use register in evaluating str_true() */ |
378cc40b |
373 | case O_AND: |
a687059c |
374 | if (str_true(st[1])) { |
378cc40b |
375 | anum = 2; |
376 | optype = O_ITEM2; |
377 | argflags = arg[anum].arg_flags; |
a687059c |
378 | if (gimme == G_ARRAY) |
379 | argflags |= AF_ARYOK; |
380 | argtype = arg[anum].arg_type & A_MASK; |
378cc40b |
381 | argptr = arg[anum].arg_ptr; |
382 | maxarg = anum = 1; |
a687059c |
383 | sp = arglast[0]; |
384 | st -= sp; |
378cc40b |
385 | goto re_eval; |
386 | } |
387 | else { |
388 | if (assigning) { |
a687059c |
389 | str_sset(str, st[1]); |
378cc40b |
390 | STABSET(str); |
391 | } |
392 | else |
a687059c |
393 | str = st[1]; |
378cc40b |
394 | break; |
395 | } |
396 | case O_OR: |
a687059c |
397 | if (str_true(st[1])) { |
378cc40b |
398 | if (assigning) { |
a687059c |
399 | str_sset(str, st[1]); |
378cc40b |
400 | STABSET(str); |
401 | } |
402 | else |
a687059c |
403 | str = st[1]; |
378cc40b |
404 | break; |
405 | } |
406 | else { |
407 | anum = 2; |
408 | optype = O_ITEM2; |
409 | argflags = arg[anum].arg_flags; |
a687059c |
410 | if (gimme == G_ARRAY) |
411 | argflags |= AF_ARYOK; |
412 | argtype = arg[anum].arg_type & A_MASK; |
378cc40b |
413 | argptr = arg[anum].arg_ptr; |
414 | maxarg = anum = 1; |
a687059c |
415 | sp = arglast[0]; |
416 | st -= sp; |
378cc40b |
417 | goto re_eval; |
418 | } |
419 | case O_COND_EXPR: |
a687059c |
420 | anum = (str_true(st[1]) ? 2 : 3); |
378cc40b |
421 | optype = (anum == 2 ? O_ITEM2 : O_ITEM3); |
422 | argflags = arg[anum].arg_flags; |
a687059c |
423 | if (gimme == G_ARRAY) |
424 | argflags |= AF_ARYOK; |
425 | argtype = arg[anum].arg_type & A_MASK; |
378cc40b |
426 | argptr = arg[anum].arg_ptr; |
427 | maxarg = anum = 1; |
a687059c |
428 | sp = arglast[0]; |
429 | st -= sp; |
378cc40b |
430 | goto re_eval; |
431 | case O_COMMA: |
a687059c |
432 | if (gimme == G_ARRAY) |
433 | goto array_return; |
434 | str = st[2]; |
378cc40b |
435 | break; |
436 | case O_NEGATE: |
a687059c |
437 | value = -str_gnum(st[1]); |
378cc40b |
438 | goto donumset; |
439 | case O_NOT: |
a687059c |
440 | value = (double) !str_true(st[1]); |
378cc40b |
441 | goto donumset; |
442 | case O_COMPLEMENT: |
a687059c |
443 | #ifndef lint |
b1248f16 |
444 | value = (double) ~U_L(str_gnum(st[1])); |
a687059c |
445 | #endif |
378cc40b |
446 | goto donumset; |
447 | case O_SELECT: |
a687059c |
448 | tmps = stab_name(defoutstab); |
449 | if (maxarg > 0) { |
450 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
451 | defoutstab = arg[1].arg_ptr.arg_stab; |
452 | else |
453 | defoutstab = stabent(str_get(st[1]),TRUE); |
454 | if (!stab_io(defoutstab)) |
455 | stab_io(defoutstab) = stio_new(); |
456 | curoutstab = defoutstab; |
457 | } |
458 | str_set(str, tmps); |
378cc40b |
459 | STABSET(str); |
460 | break; |
461 | case O_WRITE: |
462 | if (maxarg == 0) |
463 | stab = defoutstab; |
a687059c |
464 | else if ((arg[1].arg_type & A_MASK) == A_WORD) { |
465 | if (!(stab = arg[1].arg_ptr.arg_stab)) |
466 | stab = defoutstab; |
467 | } |
378cc40b |
468 | else |
a687059c |
469 | stab = stabent(str_get(st[1]),TRUE); |
470 | if (!stab_io(stab)) { |
378cc40b |
471 | str_set(str, No); |
472 | STABSET(str); |
473 | break; |
474 | } |
475 | curoutstab = stab; |
a687059c |
476 | fp = stab_io(stab)->ofp; |
378cc40b |
477 | debarg = arg; |
a687059c |
478 | if (stab_io(stab)->fmt_stab) |
479 | form = stab_form(stab_io(stab)->fmt_stab); |
378cc40b |
480 | else |
a687059c |
481 | form = stab_form(stab); |
378cc40b |
482 | if (!form || !fp) { |
a687059c |
483 | if (dowarn) { |
484 | if (form) |
485 | warn("No format for filehandle"); |
486 | else { |
487 | if (stab_io(stab)->ifp) |
488 | warn("Filehandle only opened for input"); |
489 | else |
490 | warn("Write on closed filehandle"); |
491 | } |
492 | } |
378cc40b |
493 | str_set(str, No); |
494 | STABSET(str); |
495 | break; |
496 | } |
a687059c |
497 | format(&outrec,form,sp); |
498 | do_write(&outrec,stab_io(stab),sp); |
499 | if (stab_io(stab)->flags & IOF_FLUSH) |
500 | (void)fflush(fp); |
378cc40b |
501 | str_set(str, Yes); |
502 | STABSET(str); |
503 | break; |
a687059c |
504 | case O_DBMOPEN: |
505 | #ifdef SOME_DBM |
506 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
507 | stab = arg[1].arg_ptr.arg_stab; |
508 | else |
509 | stab = stabent(str_get(st[1]),TRUE); |
510 | anum = (int)str_gnum(st[3]); |
511 | value = (double)hdbmopen(stab_hash(stab),str_get(st[2]),anum); |
512 | goto donumset; |
513 | #else |
514 | fatal("No dbm or ndbm on this machine"); |
515 | #endif |
516 | case O_DBMCLOSE: |
517 | #ifdef SOME_DBM |
518 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
519 | stab = arg[1].arg_ptr.arg_stab; |
520 | else |
521 | stab = stabent(str_get(st[1]),TRUE); |
522 | hdbmclose(stab_hash(stab)); |
523 | goto say_yes; |
524 | #else |
525 | fatal("No dbm or ndbm on this machine"); |
526 | #endif |
378cc40b |
527 | case O_OPEN: |
a687059c |
528 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
529 | stab = arg[1].arg_ptr.arg_stab; |
530 | else |
a687059c |
531 | stab = stabent(str_get(st[1]),TRUE); |
afd9f252 |
532 | tmps = str_get(st[2]); |
533 | if (do_open(stab,tmps,st[2]->str_cur)) { |
378cc40b |
534 | value = (double)forkprocess; |
a687059c |
535 | stab_io(stab)->lines = 0; |
378cc40b |
536 | goto donumset; |
537 | } |
afd9f252 |
538 | else if (forkprocess == 0) /* we are a new child */ |
539 | goto say_zero; |
378cc40b |
540 | else |
a687059c |
541 | goto say_undef; |
378cc40b |
542 | break; |
543 | case O_TRANS: |
544 | value = (double) do_trans(str,arg); |
545 | str = arg->arg_ptr.arg_str; |
546 | goto donumset; |
547 | case O_NTRANS: |
548 | str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No); |
549 | str = arg->arg_ptr.arg_str; |
550 | break; |
551 | case O_CLOSE: |
a687059c |
552 | if (maxarg == 0) |
553 | stab = defoutstab; |
554 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
555 | stab = arg[1].arg_ptr.arg_stab; |
556 | else |
a687059c |
557 | stab = stabent(str_get(st[1]),TRUE); |
378cc40b |
558 | str_set(str, do_close(stab,TRUE) ? Yes : No ); |
559 | STABSET(str); |
560 | break; |
561 | case O_EACH: |
a687059c |
562 | sp = do_each(str,stab_hash(arg[1].arg_ptr.arg_stab), |
563 | gimme,arglast); |
564 | goto array_return; |
378cc40b |
565 | case O_VALUES: |
566 | case O_KEYS: |
a687059c |
567 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
568 | gimme,arglast); |
569 | goto array_return; |
570 | case O_LARRAY: |
571 | str->str_nok = str->str_pok = 0; |
572 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
573 | str->str_state = SS_ARY; |
574 | break; |
378cc40b |
575 | case O_ARRAY: |
a687059c |
576 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
577 | maxarg = ary->ary_fill + 1; |
578 | if (gimme == G_ARRAY) { /* array wanted */ |
579 | sp = arglast[0]; |
580 | st -= sp; |
581 | if (maxarg > 0 && sp + maxarg > stack->ary_max) { |
582 | astore(stack,sp + maxarg, Nullstr); |
583 | st = stack->ary_array; |
378cc40b |
584 | } |
a687059c |
585 | Copy(ary->ary_array, &st[sp+1], maxarg, STR*); |
586 | sp += maxarg; |
587 | goto array_return; |
378cc40b |
588 | } |
afd9f252 |
589 | else { |
590 | value = (double)maxarg; |
591 | goto donumset; |
592 | } |
a687059c |
593 | case O_AELEM: |
0d3e774c |
594 | anum = ((int)str_gnum(st[2])) - arybase; |
595 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,FALSE); |
378cc40b |
596 | if (!str) |
a687059c |
597 | goto say_undef; |
378cc40b |
598 | break; |
599 | case O_DELETE: |
a687059c |
600 | tmpstab = arg[1].arg_ptr.arg_stab; |
601 | tmps = str_get(st[2]); |
602 | str = hdelete(stab_hash(tmpstab),tmps,st[2]->str_cur); |
603 | if (tmpstab == envstab) |
604 | setenv(tmps,Nullch); |
378cc40b |
605 | if (!str) |
a687059c |
606 | goto say_undef; |
607 | break; |
608 | case O_LHASH: |
609 | str->str_nok = str->str_pok = 0; |
610 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
611 | str->str_state = SS_HASH; |
378cc40b |
612 | break; |
613 | case O_HASH: |
a687059c |
614 | if (gimme == G_ARRAY) { /* array wanted */ |
615 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
616 | gimme,arglast); |
617 | goto array_return; |
618 | } |
619 | else { |
620 | tmpstab = arg[1].arg_ptr.arg_stab; |
621 | sprintf(buf,"%d/%d",stab_hash(tmpstab)->tbl_fill, |
622 | stab_hash(tmpstab)->tbl_max+1); |
623 | str_set(str,buf); |
624 | } |
625 | break; |
626 | case O_HELEM: |
627 | tmpstab = arg[1].arg_ptr.arg_stab; |
628 | tmps = str_get(st[2]); |
629 | str = hfetch(stab_hash(tmpstab),tmps,st[2]->str_cur,FALSE); |
378cc40b |
630 | if (!str) |
a687059c |
631 | goto say_undef; |
378cc40b |
632 | break; |
a687059c |
633 | case O_LAELEM: |
634 | anum = ((int)str_gnum(st[2])) - arybase; |
635 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,TRUE); |
636 | if (!str) |
637 | fatal("Assignment to non-creatable value, subscript %d",anum); |
378cc40b |
638 | break; |
a687059c |
639 | case O_LHELEM: |
640 | tmpstab = arg[1].arg_ptr.arg_stab; |
641 | tmps = str_get(st[2]); |
642 | anum = st[2]->str_cur; |
643 | str = hfetch(stab_hash(tmpstab),tmps,anum,TRUE); |
644 | if (!str) |
645 | fatal("Assignment to non-creatable value, subscript \"%s\"",tmps); |
646 | if (tmpstab == envstab) /* heavy wizardry going on here */ |
647 | str_magic(str, tmpstab, 'E', tmps, anum); /* str is now magic */ |
378cc40b |
648 | /* he threw the brick up into the air */ |
a687059c |
649 | else if (tmpstab == sigstab) |
650 | str_magic(str, tmpstab, 'S', tmps, anum); |
651 | #ifdef SOME_DBM |
652 | else if (stab_hash(tmpstab)->tbl_dbm) |
653 | str_magic(str, tmpstab, 'D', tmps, anum); |
654 | #endif |
378cc40b |
655 | break; |
79a0689e |
656 | case O_LSLICE: |
657 | anum = 2; |
658 | argtype = FALSE; |
659 | goto do_slice_already; |
a687059c |
660 | case O_ASLICE: |
79a0689e |
661 | anum = 1; |
a687059c |
662 | argtype = FALSE; |
663 | goto do_slice_already; |
664 | case O_HSLICE: |
79a0689e |
665 | anum = 0; |
a687059c |
666 | argtype = FALSE; |
667 | goto do_slice_already; |
668 | case O_LASLICE: |
79a0689e |
669 | anum = 1; |
a687059c |
670 | argtype = TRUE; |
671 | goto do_slice_already; |
672 | case O_LHSLICE: |
79a0689e |
673 | anum = 0; |
a687059c |
674 | argtype = TRUE; |
675 | do_slice_already: |
79a0689e |
676 | sp = do_slice(arg[1].arg_ptr.arg_stab,str,anum,argtype, |
a687059c |
677 | gimme,arglast); |
678 | goto array_return; |
79a0689e |
679 | case O_SPLICE: |
680 | sp = do_splice(stab_array(arg[1].arg_ptr.arg_stab),str,gimme,arglast); |
681 | goto array_return; |
378cc40b |
682 | case O_PUSH: |
a687059c |
683 | if (arglast[2] - arglast[1] != 1) |
684 | str = do_push(stab_array(arg[1].arg_ptr.arg_stab),arglast); |
378cc40b |
685 | else { |
a687059c |
686 | str = Str_new(51,0); /* must copy the STR */ |
687 | str_sset(str,st[2]); |
688 | (void)apush(stab_array(arg[1].arg_ptr.arg_stab),str); |
378cc40b |
689 | } |
690 | break; |
691 | case O_POP: |
a687059c |
692 | str = apop(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
693 | goto staticalization; |
378cc40b |
694 | case O_SHIFT: |
a687059c |
695 | str = ashift(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
696 | staticalization: |
697 | if (!str) |
698 | goto say_undef; |
699 | if (ary->ary_flags & ARF_REAL) |
700 | (void)str_2static(str); |
378cc40b |
701 | break; |
a687059c |
702 | case O_UNPACK: |
703 | sp = do_unpack(str,gimme,arglast); |
704 | goto array_return; |
378cc40b |
705 | case O_SPLIT: |
a687059c |
706 | value = str_gnum(st[3]); |
707 | sp = do_split(str, arg[2].arg_ptr.arg_spat, (int)value, |
708 | gimme,arglast); |
709 | goto array_return; |
378cc40b |
710 | case O_LENGTH: |
a687059c |
711 | if (maxarg < 1) |
712 | value = (double)str_len(stab_val(defstab)); |
713 | else |
714 | value = (double)str_len(st[1]); |
378cc40b |
715 | goto donumset; |
716 | case O_SPRINTF: |
a687059c |
717 | do_sprintf(str, sp-arglast[0], st+1); |
378cc40b |
718 | break; |
719 | case O_SUBSTR: |
a687059c |
720 | anum = ((int)str_gnum(st[2])) - arybase; /* anum=where to start*/ |
721 | tmps = str_get(st[1]); /* force conversion to string */ |
722 | if (argtype = (str == st[1])) |
723 | str = arg->arg_ptr.arg_str; |
724 | if (anum < 0) |
725 | anum += st[1]->str_cur + arybase; |
726 | if (anum < 0 || anum > st[1]->str_cur) |
727 | str_nset(str,"",0); |
728 | else { |
729 | optype = (int)str_gnum(st[3]); |
730 | if (optype < 0) |
731 | optype = 0; |
732 | tmps += anum; |
733 | anum = st[1]->str_cur - anum; /* anum=how many bytes left*/ |
734 | if (anum > optype) |
735 | anum = optype; |
378cc40b |
736 | str_nset(str, tmps, anum); |
a687059c |
737 | if (argtype) { /* it's an lvalue! */ |
738 | lstr = (struct lstring*)str; |
739 | str->str_magic = st[1]; |
740 | st[1]->str_rare = 's'; |
741 | lstr->lstr_offset = tmps - str_get(st[1]); |
742 | lstr->lstr_len = anum; |
743 | } |
744 | } |
745 | break; |
746 | case O_PACK: |
747 | (void)do_pack(str,arglast); |
378cc40b |
748 | break; |
a687059c |
749 | case O_GREP: |
750 | sp = do_grep(arg,str,gimme,arglast); |
751 | goto array_return; |
378cc40b |
752 | case O_JOIN: |
a687059c |
753 | do_join(str,arglast); |
378cc40b |
754 | break; |
755 | case O_SLT: |
a687059c |
756 | tmps = str_get(st[1]); |
757 | value = (double) (str_cmp(st[1],st[2]) < 0); |
378cc40b |
758 | goto donumset; |
759 | case O_SGT: |
a687059c |
760 | tmps = str_get(st[1]); |
761 | value = (double) (str_cmp(st[1],st[2]) > 0); |
378cc40b |
762 | goto donumset; |
763 | case O_SLE: |
a687059c |
764 | tmps = str_get(st[1]); |
765 | value = (double) (str_cmp(st[1],st[2]) <= 0); |
378cc40b |
766 | goto donumset; |
767 | case O_SGE: |
a687059c |
768 | tmps = str_get(st[1]); |
769 | value = (double) (str_cmp(st[1],st[2]) >= 0); |
378cc40b |
770 | goto donumset; |
771 | case O_SEQ: |
a687059c |
772 | tmps = str_get(st[1]); |
773 | value = (double) str_eq(st[1],st[2]); |
378cc40b |
774 | goto donumset; |
775 | case O_SNE: |
a687059c |
776 | tmps = str_get(st[1]); |
777 | value = (double) !str_eq(st[1],st[2]); |
378cc40b |
778 | goto donumset; |
779 | case O_SUBR: |
a687059c |
780 | sp = do_subr(arg,gimme,arglast); |
781 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
782 | goto array_return; |
783 | case O_DBSUBR: |
784 | sp = do_dbsubr(arg,gimme,arglast); |
785 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
786 | goto array_return; |
378cc40b |
787 | case O_SORT: |
a687059c |
788 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
789 | stab = arg[1].arg_ptr.arg_stab; |
790 | else |
791 | stab = stabent(str_get(st[1]),TRUE); |
792 | if (!stab) |
378cc40b |
793 | stab = defoutstab; |
a687059c |
794 | sp = do_sort(str,stab, |
795 | gimme,arglast); |
796 | goto array_return; |
797 | case O_REVERSE: |
798 | sp = do_reverse(str, |
799 | gimme,arglast); |
800 | goto array_return; |
801 | case O_WARN: |
802 | if (arglast[2] - arglast[1] != 1) { |
803 | do_join(str,arglast); |
804 | tmps = str_get(st[1]); |
805 | } |
378cc40b |
806 | else { |
a687059c |
807 | str = st[2]; |
808 | tmps = str_get(st[2]); |
378cc40b |
809 | } |
a687059c |
810 | if (!tmps || !*tmps) |
811 | tmps = "Warning: something's wrong"; |
812 | warn("%s",tmps); |
813 | goto say_yes; |
814 | case O_DIE: |
815 | if (arglast[2] - arglast[1] != 1) { |
816 | do_join(str,arglast); |
817 | tmps = str_get(st[1]); |
378cc40b |
818 | } |
a687059c |
819 | else { |
820 | str = st[2]; |
821 | tmps = str_get(st[2]); |
822 | } |
823 | if (!tmps || !*tmps) |
824 | exit(1); |
825 | fatal("%s",tmps); |
826 | goto say_zero; |
378cc40b |
827 | case O_PRTF: |
828 | case O_PRINT: |
a687059c |
829 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
830 | stab = arg[1].arg_ptr.arg_stab; |
831 | else |
832 | stab = stabent(str_get(st[1]),TRUE); |
833 | if (!stab) |
378cc40b |
834 | stab = defoutstab; |
a687059c |
835 | if (!stab_io(stab)) { |
836 | if (dowarn) |
837 | warn("Filehandle never opened"); |
838 | goto say_zero; |
839 | } |
840 | if (!(fp = stab_io(stab)->ofp)) { |
841 | if (dowarn) { |
842 | if (stab_io(stab)->ifp) |
843 | warn("Filehandle opened only for input"); |
844 | else |
845 | warn("Print on closed filehandle"); |
846 | } |
847 | goto say_zero; |
378cc40b |
848 | } |
378cc40b |
849 | else { |
a687059c |
850 | if (optype == O_PRTF || arglast[2] - arglast[1] != 1) |
851 | value = (double)do_aprint(arg,fp,arglast); |
378cc40b |
852 | else { |
a687059c |
853 | value = (double)do_print(st[2],fp); |
854 | if (orslen && optype == O_PRINT) |
855 | if (fwrite(ors, 1, orslen, fp) == 0) |
856 | goto say_zero; |
378cc40b |
857 | } |
a687059c |
858 | if (stab_io(stab)->flags & IOF_FLUSH) |
859 | if (fflush(fp) == EOF) |
860 | goto say_zero; |
378cc40b |
861 | } |
862 | goto donumset; |
863 | case O_CHDIR: |
a687059c |
864 | if (maxarg < 1) |
afd9f252 |
865 | tmps = Nullch; |
a687059c |
866 | else |
867 | tmps = str_get(st[1]); |
868 | if (!tmps || !*tmps) { |
869 | tmpstr = hfetch(stab_hash(envstab),"HOME",4,FALSE); |
870 | if (tmpstr) |
871 | tmps = str_get(tmpstr); |
872 | } |
873 | if (!tmps || !*tmps) { |
874 | tmpstr = hfetch(stab_hash(envstab),"LOGDIR",6,FALSE); |
875 | if (tmpstr) |
876 | tmps = str_get(tmpstr); |
877 | } |
878 | #ifdef TAINT |
879 | taintproper("Insecure dependency in chdir"); |
880 | #endif |
378cc40b |
881 | value = (double)(chdir(tmps) >= 0); |
882 | goto donumset; |
378cc40b |
883 | case O_EXIT: |
a687059c |
884 | if (maxarg < 1) |
885 | anum = 0; |
886 | else |
887 | anum = (int)str_gnum(st[1]); |
888 | exit(anum); |
889 | goto say_zero; |
378cc40b |
890 | case O_RESET: |
a687059c |
891 | if (maxarg < 1) |
892 | tmps = ""; |
893 | else |
894 | tmps = str_get(st[1]); |
895 | str_reset(tmps,arg[2].arg_ptr.arg_hash); |
378cc40b |
896 | value = 1.0; |
897 | goto donumset; |
898 | case O_LIST: |
a687059c |
899 | if (gimme == G_ARRAY) |
900 | goto array_return; |
378cc40b |
901 | if (maxarg > 0) |
a687059c |
902 | str = st[sp - arglast[0]]; /* unwanted list, return last item */ |
378cc40b |
903 | else |
a687059c |
904 | str = &str_undef; |
378cc40b |
905 | break; |
906 | case O_EOF: |
907 | if (maxarg <= 0) |
908 | stab = last_in_stab; |
a687059c |
909 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
910 | stab = arg[1].arg_ptr.arg_stab; |
911 | else |
a687059c |
912 | stab = stabent(str_get(st[1]),TRUE); |
378cc40b |
913 | str_set(str, do_eof(stab) ? Yes : No); |
914 | STABSET(str); |
915 | break; |
a687059c |
916 | case O_GETC: |
378cc40b |
917 | if (maxarg <= 0) |
a687059c |
918 | stab = stdinstab; |
919 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
920 | stab = arg[1].arg_ptr.arg_stab; |
921 | else |
a687059c |
922 | stab = stabent(str_get(st[1]),TRUE); |
923 | if (do_eof(stab)) /* make sure we have fp with something */ |
924 | str_set(str, No); |
925 | else { |
926 | #ifdef TAINT |
927 | tainted = 1; |
928 | #endif |
929 | str_set(str," "); |
930 | *str->str_ptr = getc(stab_io(stab)->ifp); /* should never be EOF */ |
931 | } |
932 | STABSET(str); |
933 | break; |
934 | case O_TELL: |
935 | if (maxarg <= 0) |
936 | stab = last_in_stab; |
937 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
938 | stab = arg[1].arg_ptr.arg_stab; |
939 | else |
940 | stab = stabent(str_get(st[1]),TRUE); |
941 | #ifndef lint |
942 | value = (double)do_tell(stab); |
943 | #else |
944 | (void)do_tell(stab); |
945 | #endif |
946 | goto donumset; |
947 | case O_RECV: |
948 | case O_READ: |
949 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
950 | stab = arg[1].arg_ptr.arg_stab; |
951 | else |
952 | stab = stabent(str_get(st[1]),TRUE); |
953 | tmps = str_get(st[2]); |
954 | anum = (int)str_gnum(st[3]); |
955 | STR_GROW(st[2], anum+1), (tmps = str_get(st[2])); /* sneaky */ |
956 | errno = 0; |
957 | if (!stab_io(stab) || !stab_io(stab)->ifp) |
958 | goto say_zero; |
959 | #ifdef SOCKET |
960 | else if (optype == O_RECV) { |
961 | argtype = sizeof buf; |
962 | optype = (int)str_gnum(st[4]); |
963 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, optype, |
964 | buf, &argtype); |
965 | if (anum >= 0) { |
966 | st[2]->str_cur = anum; |
967 | st[2]->str_ptr[anum] = '\0'; |
968 | str_nset(str,buf,argtype); |
969 | } |
970 | else |
971 | str_sset(str,&str_undef); |
972 | break; |
973 | } |
974 | else if (stab_io(stab)->type == 's') { |
975 | argtype = sizeof buf; |
976 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, 0, |
977 | buf, &argtype); |
978 | } |
979 | #else |
980 | else if (optype == O_RECV) |
981 | goto badsock; |
982 | #endif |
983 | else |
984 | anum = fread(tmps, 1, anum, stab_io(stab)->ifp); |
985 | if (anum < 0) |
986 | goto say_undef; |
987 | st[2]->str_cur = anum; |
988 | st[2]->str_ptr[anum] = '\0'; |
989 | value = (double)anum; |
990 | goto donumset; |
991 | case O_SEND: |
992 | #ifdef SOCKET |
993 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
994 | stab = arg[1].arg_ptr.arg_stab; |
995 | else |
996 | stab = stabent(str_get(st[1]),TRUE); |
997 | tmps = str_get(st[2]); |
998 | anum = (int)str_gnum(st[3]); |
999 | optype = sp - arglast[0]; |
1000 | errno = 0; |
1001 | if (optype > 4) |
1002 | warn("Too many args on send"); |
663a0e37 |
1003 | stio = stab_io(stab); |
1004 | if (!stio || !stio->ifp) { |
1005 | anum = -1; |
1006 | if (dowarn) |
1007 | warn("Send on closed socket"); |
1008 | } |
1009 | else if (optype >= 4) { |
a687059c |
1010 | tmps2 = str_get(st[4]); |
1011 | anum = sendto(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, |
1012 | anum, tmps2, st[4]->str_cur); |
1013 | } |
1014 | else |
1015 | anum = send(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, anum); |
1016 | if (anum < 0) |
1017 | goto say_undef; |
1018 | value = (double)anum; |
1019 | goto donumset; |
1020 | #else |
1021 | goto badsock; |
1022 | #endif |
1023 | case O_SEEK: |
1024 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1025 | stab = arg[1].arg_ptr.arg_stab; |
378cc40b |
1026 | else |
a687059c |
1027 | stab = stabent(str_get(st[1]),TRUE); |
1028 | value = str_gnum(st[2]); |
378cc40b |
1029 | str_set(str, do_seek(stab, |
a687059c |
1030 | (long)value, (int)str_gnum(st[3]) ) ? Yes : No); |
378cc40b |
1031 | STABSET(str); |
1032 | break; |
a687059c |
1033 | case O_RETURN: |
afd9f252 |
1034 | tmps = "_SUB_"; /* just fake up a "last _SUB_" */ |
a687059c |
1035 | optype = O_LAST; |
afd9f252 |
1036 | if (wantarray == G_ARRAY) { |
a687059c |
1037 | lastretstr = Nullstr; |
1038 | lastspbase = arglast[1]; |
1039 | lastsize = arglast[2] - arglast[1]; |
1040 | } |
1041 | else |
1042 | lastretstr = str_static(st[arglast[2] - arglast[0]]); |
1043 | goto dopop; |
378cc40b |
1044 | case O_REDO: |
1045 | case O_NEXT: |
1046 | case O_LAST: |
1047 | if (maxarg > 0) { |
a687059c |
1048 | tmps = str_get(arg[1].arg_ptr.arg_str); |
1049 | dopop: |
378cc40b |
1050 | while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label || |
1051 | strNE(tmps,loop_stack[loop_ptr].loop_label) )) { |
1052 | #ifdef DEBUGGING |
1053 | if (debug & 4) { |
1054 | deb("(Skipping label #%d %s)\n",loop_ptr, |
1055 | loop_stack[loop_ptr].loop_label); |
1056 | } |
1057 | #endif |
1058 | loop_ptr--; |
1059 | } |
1060 | #ifdef DEBUGGING |
1061 | if (debug & 4) { |
1062 | deb("(Found label #%d %s)\n",loop_ptr, |
1063 | loop_stack[loop_ptr].loop_label); |
1064 | } |
1065 | #endif |
1066 | } |
1067 | if (loop_ptr < 0) |
1068 | fatal("Bad label: %s", maxarg > 0 ? tmps : "<null>"); |
a687059c |
1069 | if (!lastretstr && optype == O_LAST && lastsize) { |
1070 | st -= arglast[0]; |
1071 | st += lastspbase + 1; |
1072 | optype = loop_stack[loop_ptr].loop_sp - lastspbase; /* negative */ |
1073 | if (optype) { |
1074 | for (anum = lastsize; anum > 0; anum--,st++) |
1075 | st[optype] = str_static(st[0]); |
1076 | } |
1077 | longjmp(loop_stack[loop_ptr].loop_env, O_LAST); |
1078 | } |
378cc40b |
1079 | longjmp(loop_stack[loop_ptr].loop_env, optype); |
a687059c |
1080 | case O_DUMP: |
378cc40b |
1081 | case O_GOTO:/* shudder */ |
a687059c |
1082 | goto_targ = str_get(arg[1].arg_ptr.arg_str); |
1083 | if (!*goto_targ) |
1084 | goto_targ = Nullch; /* just restart from top */ |
1085 | if (optype == O_DUMP) { |
1086 | do_undump = 1; |
1087 | abort(); |
1088 | } |
378cc40b |
1089 | longjmp(top_env, 1); |
1090 | case O_INDEX: |
a687059c |
1091 | tmps = str_get(st[1]); |
1092 | #ifndef lint |
1093 | if (!(tmps2 = fbminstr((unsigned char*)tmps, |
1094 | (unsigned char*)tmps + st[1]->str_cur, st[2]))) |
1095 | #else |
1096 | if (tmps2 = fbminstr(Null(unsigned char*),Null(unsigned char*),Nullstr)) |
1097 | #endif |
1098 | value = (double)(-1 + arybase); |
1099 | else |
1100 | value = (double)(tmps2 - tmps + arybase); |
1101 | goto donumset; |
1102 | case O_RINDEX: |
1103 | tmps = str_get(st[1]); |
1104 | tmps2 = str_get(st[2]); |
1105 | #ifndef lint |
1106 | if (!(tmps2 = rninstr(tmps, tmps + st[1]->str_cur, |
1107 | tmps2, tmps2 + st[2]->str_cur))) |
1108 | #else |
1109 | if (tmps2 = rninstr(Nullch,Nullch,Nullch,Nullch)) |
1110 | #endif |
378cc40b |
1111 | value = (double)(-1 + arybase); |
1112 | else |
1113 | value = (double)(tmps2 - tmps + arybase); |
1114 | goto donumset; |
1115 | case O_TIME: |
a687059c |
1116 | #ifndef lint |
378cc40b |
1117 | value = (double) time(Null(long*)); |
a687059c |
1118 | #endif |
378cc40b |
1119 | goto donumset; |
1120 | case O_TMS: |
a687059c |
1121 | sp = do_tms(str,gimme,arglast); |
1122 | goto array_return; |
378cc40b |
1123 | case O_LOCALTIME: |
a687059c |
1124 | if (maxarg < 1) |
1125 | (void)time(&when); |
1126 | else |
1127 | when = (long)str_gnum(st[1]); |
1128 | sp = do_time(str,localtime(&when), |
1129 | gimme,arglast); |
1130 | goto array_return; |
378cc40b |
1131 | case O_GMTIME: |
a687059c |
1132 | if (maxarg < 1) |
1133 | (void)time(&when); |
1134 | else |
1135 | when = (long)str_gnum(st[1]); |
1136 | sp = do_time(str,gmtime(&when), |
1137 | gimme,arglast); |
1138 | goto array_return; |
1139 | case O_LSTAT: |
378cc40b |
1140 | case O_STAT: |
a687059c |
1141 | sp = do_stat(str,arg, |
1142 | gimme,arglast); |
1143 | goto array_return; |
378cc40b |
1144 | case O_CRYPT: |
1145 | #ifdef CRYPT |
a687059c |
1146 | tmps = str_get(st[1]); |
1147 | #ifdef FCRYPT |
1148 | str_set(str,fcrypt(tmps,str_get(st[2]))); |
1149 | #else |
1150 | str_set(str,crypt(tmps,str_get(st[2]))); |
1151 | #endif |
378cc40b |
1152 | #else |
1153 | fatal( |
1154 | "The crypt() function is unimplemented due to excessive paranoia."); |
1155 | #endif |
1156 | break; |
a687059c |
1157 | case O_ATAN2: |
1158 | value = str_gnum(st[1]); |
1159 | value = atan2(value,str_gnum(st[2])); |
1160 | goto donumset; |
1161 | case O_SIN: |
1162 | if (maxarg < 1) |
1163 | value = str_gnum(stab_val(defstab)); |
1164 | else |
1165 | value = str_gnum(st[1]); |
1166 | value = sin(value); |
1167 | goto donumset; |
1168 | case O_COS: |
1169 | if (maxarg < 1) |
1170 | value = str_gnum(stab_val(defstab)); |
1171 | else |
1172 | value = str_gnum(st[1]); |
1173 | value = cos(value); |
1174 | goto donumset; |
1175 | case O_RAND: |
1176 | if (maxarg < 1) |
1177 | value = 1.0; |
1178 | else |
1179 | value = str_gnum(st[1]); |
1180 | if (value == 0.0) |
1181 | value = 1.0; |
1182 | #if RANDBITS == 31 |
1183 | value = rand() * value / 2147483648.0; |
1184 | #else |
1185 | #if RANDBITS == 16 |
1186 | value = rand() * value / 65536.0; |
1187 | #else |
1188 | #if RANDBITS == 15 |
1189 | value = rand() * value / 32768.0; |
1190 | #else |
1191 | value = rand() * value / (double)(((unsigned long)1) << RANDBITS); |
1192 | #endif |
1193 | #endif |
1194 | #endif |
1195 | goto donumset; |
1196 | case O_SRAND: |
1197 | if (maxarg < 1) { |
1198 | (void)time(&when); |
1199 | anum = when; |
1200 | } |
1201 | else |
1202 | anum = (int)str_gnum(st[1]); |
1203 | (void)srand(anum); |
1204 | goto say_yes; |
378cc40b |
1205 | case O_EXP: |
a687059c |
1206 | if (maxarg < 1) |
1207 | value = str_gnum(stab_val(defstab)); |
1208 | else |
1209 | value = str_gnum(st[1]); |
1210 | value = exp(value); |
378cc40b |
1211 | goto donumset; |
1212 | case O_LOG: |
a687059c |
1213 | if (maxarg < 1) |
1214 | value = str_gnum(stab_val(defstab)); |
1215 | else |
1216 | value = str_gnum(st[1]); |
1217 | value = log(value); |
378cc40b |
1218 | goto donumset; |
1219 | case O_SQRT: |
a687059c |
1220 | if (maxarg < 1) |
1221 | value = str_gnum(stab_val(defstab)); |
1222 | else |
1223 | value = str_gnum(st[1]); |
1224 | value = sqrt(value); |
378cc40b |
1225 | goto donumset; |
1226 | case O_INT: |
a687059c |
1227 | if (maxarg < 1) |
1228 | value = str_gnum(stab_val(defstab)); |
1229 | else |
1230 | value = str_gnum(st[1]); |
378cc40b |
1231 | if (value >= 0.0) |
a687059c |
1232 | (void)modf(value,&value); |
378cc40b |
1233 | else { |
a687059c |
1234 | (void)modf(-value,&value); |
378cc40b |
1235 | value = -value; |
1236 | } |
1237 | goto donumset; |
1238 | case O_ORD: |
a687059c |
1239 | if (maxarg < 1) |
1240 | tmps = str_get(stab_val(defstab)); |
1241 | else |
1242 | tmps = str_get(st[1]); |
1243 | #ifndef I286 |
663a0e37 |
1244 | value = (double) (*tmps & 255); |
a687059c |
1245 | #else |
1246 | anum = (int) *tmps; |
663a0e37 |
1247 | value = (double) (anum & 255); |
a687059c |
1248 | #endif |
378cc40b |
1249 | goto donumset; |
1250 | case O_SLEEP: |
a687059c |
1251 | if (maxarg < 1) |
1252 | tmps = Nullch; |
1253 | else |
1254 | tmps = str_get(st[1]); |
1255 | (void)time(&when); |
378cc40b |
1256 | if (!tmps || !*tmps) |
1257 | sleep((32767<<16)+32767); |
1258 | else |
a687059c |
1259 | sleep((unsigned int)atoi(tmps)); |
1260 | #ifndef lint |
378cc40b |
1261 | value = (double)when; |
a687059c |
1262 | (void)time(&when); |
378cc40b |
1263 | value = ((double)when) - value; |
a687059c |
1264 | #endif |
378cc40b |
1265 | goto donumset; |
a687059c |
1266 | case O_RANGE: |
1267 | sp = do_range(gimme,arglast); |
1268 | goto array_return; |
1269 | case O_F_OR_R: |
1270 | if (gimme == G_ARRAY) { /* it's a range */ |
1271 | /* can we optimize to constant array? */ |
1272 | if ((arg[1].arg_type & A_MASK) == A_SINGLE && |
1273 | (arg[2].arg_type & A_MASK) == A_SINGLE) { |
1274 | st[2] = arg[2].arg_ptr.arg_str; |
1275 | sp = do_range(gimme,arglast); |
1276 | st = stack->ary_array; |
1277 | maxarg = sp - arglast[0]; |
1278 | str_free(arg[1].arg_ptr.arg_str); |
1279 | str_free(arg[2].arg_ptr.arg_str); |
1280 | arg->arg_type = O_ARRAY; |
1281 | arg[1].arg_type = A_STAB|A_DONT; |
1282 | arg->arg_len = 1; |
1283 | stab = arg[1].arg_ptr.arg_stab = aadd(genstab()); |
1284 | ary = stab_array(stab); |
1285 | afill(ary,maxarg - 1); |
1286 | st += arglast[0]+1; |
1287 | while (maxarg-- > 0) |
1288 | ary->ary_array[maxarg] = str_smake(st[maxarg]); |
1289 | goto array_return; |
1290 | } |
1291 | arg->arg_type = optype = O_RANGE; |
1292 | maxarg = arg->arg_len = 2; |
1293 | anum = 2; |
1294 | arg[anum].arg_flags &= ~AF_ARYOK; |
1295 | argflags = arg[anum].arg_flags; |
1296 | argtype = arg[anum].arg_type & A_MASK; |
1297 | arg[anum].arg_type = argtype; |
1298 | argptr = arg[anum].arg_ptr; |
1299 | sp = arglast[0]; |
1300 | st -= sp; |
1301 | sp++; |
1302 | goto re_eval; |
1303 | } |
1304 | arg->arg_type = O_FLIP; |
1305 | /* FALL THROUGH */ |
378cc40b |
1306 | case O_FLIP: |
a687059c |
1307 | if ((arg[1].arg_type & A_MASK) == A_SINGLE ? |
1308 | last_in_stab && (int)str_gnum(st[1]) == stab_io(last_in_stab)->lines |
1309 | : |
1310 | str_true(st[1]) ) { |
378cc40b |
1311 | str_numset(str,0.0); |
1312 | anum = 2; |
1313 | arg->arg_type = optype = O_FLOP; |
a687059c |
1314 | arg[2].arg_type &= ~A_DONT; |
1315 | arg[1].arg_type |= A_DONT; |
378cc40b |
1316 | argflags = arg[2].arg_flags; |
a687059c |
1317 | argtype = arg[2].arg_type & A_MASK; |
378cc40b |
1318 | argptr = arg[2].arg_ptr; |
a687059c |
1319 | sp = arglast[0]; |
1320 | st -= sp; |
378cc40b |
1321 | goto re_eval; |
1322 | } |
1323 | str_set(str,""); |
1324 | break; |
1325 | case O_FLOP: |
1326 | str_inc(str); |
a687059c |
1327 | if ((arg[2].arg_type & A_MASK) == A_SINGLE ? |
1328 | last_in_stab && (int)str_gnum(st[2]) == stab_io(last_in_stab)->lines |
1329 | : |
1330 | str_true(st[2]) ) { |
378cc40b |
1331 | arg->arg_type = O_FLIP; |
a687059c |
1332 | arg[1].arg_type &= ~A_DONT; |
1333 | arg[2].arg_type |= A_DONT; |
378cc40b |
1334 | str_cat(str,"E0"); |
1335 | } |
1336 | break; |
1337 | case O_FORK: |
b1248f16 |
1338 | #ifdef FORK |
a687059c |
1339 | anum = fork(); |
1340 | if (!anum && (tmpstab = stabent("$",allstabs))) |
1341 | str_numset(STAB_STR(tmpstab),(double)getpid()); |
1342 | value = (double)anum; |
378cc40b |
1343 | goto donumset; |
b1248f16 |
1344 | #else |
1345 | fatal("Unsupported function fork"); |
1346 | break; |
1347 | #endif |
378cc40b |
1348 | case O_WAIT: |
b1248f16 |
1349 | #ifdef WAIT |
a687059c |
1350 | #ifndef lint |
a687059c |
1351 | anum = wait(&argflags); |
1352 | if (anum > 0) |
1353 | pidgone(anum,argflags); |
1354 | value = (double)anum; |
a687059c |
1355 | #endif |
378cc40b |
1356 | statusvalue = (unsigned short)argflags; |
1357 | goto donumset; |
b1248f16 |
1358 | #else |
1359 | fatal("Unsupported function wait"); |
1360 | break; |
1361 | #endif |
378cc40b |
1362 | case O_SYSTEM: |
b1248f16 |
1363 | #ifdef FORK |
a687059c |
1364 | #ifdef TAINT |
1365 | if (arglast[2] - arglast[1] == 1) { |
1366 | taintenv(); |
1367 | tainted |= st[2]->str_tainted; |
1368 | taintproper("Insecure dependency in system"); |
1369 | } |
1370 | #endif |
378cc40b |
1371 | while ((anum = vfork()) == -1) { |
1372 | if (errno != EAGAIN) { |
1373 | value = -1.0; |
1374 | goto donumset; |
1375 | } |
1376 | sleep(5); |
1377 | } |
1378 | if (anum > 0) { |
a687059c |
1379 | #ifndef lint |
378cc40b |
1380 | ihand = signal(SIGINT, SIG_IGN); |
1381 | qhand = signal(SIGQUIT, SIG_IGN); |
a687059c |
1382 | while ((argtype = wait(&argflags)) != anum && argtype >= 0) |
1383 | pidgone(argtype,argflags); |
1384 | #else |
1385 | ihand = qhand = 0; |
1386 | #endif |
1387 | (void)signal(SIGINT, ihand); |
1388 | (void)signal(SIGQUIT, qhand); |
378cc40b |
1389 | statusvalue = (unsigned short)argflags; |
1390 | if (argtype == -1) |
1391 | value = -1.0; |
1392 | else { |
1393 | value = (double)((unsigned int)argflags & 0xffff); |
1394 | } |
1395 | goto donumset; |
1396 | } |
a687059c |
1397 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
1398 | value = (double)do_aexec(st[1],arglast); |
1399 | else if (arglast[2] - arglast[1] != 1) |
1400 | value = (double)do_aexec(Nullstr,arglast); |
378cc40b |
1401 | else { |
a687059c |
1402 | value = (double)do_exec(str_get(str_static(st[2]))); |
378cc40b |
1403 | } |
1404 | _exit(-1); |
b1248f16 |
1405 | #else /* ! FORK */ |
1406 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
1407 | value = (double)do_aspawn(st[1],arglast); |
1408 | else if (arglast[2] - arglast[1] != 1) |
1409 | value = (double)do_aspawn(Nullstr,arglast); |
1410 | else { |
1411 | value = (double)do_spawn(str_get(str_static(st[2]))); |
1412 | } |
1413 | goto donumset; |
1414 | #endif /* FORK */ |
378cc40b |
1415 | case O_EXEC: |
a687059c |
1416 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
1417 | value = (double)do_aexec(st[1],arglast); |
1418 | else if (arglast[2] - arglast[1] != 1) |
1419 | value = (double)do_aexec(Nullstr,arglast); |
378cc40b |
1420 | else { |
a687059c |
1421 | value = (double)do_exec(str_get(str_static(st[2]))); |
378cc40b |
1422 | } |
1423 | goto donumset; |
1424 | case O_HEX: |
1425 | argtype = 4; |
1426 | goto snarfnum; |
1427 | |
1428 | case O_OCT: |
1429 | argtype = 3; |
1430 | |
1431 | snarfnum: |
1432 | anum = 0; |
a687059c |
1433 | if (maxarg < 1) |
1434 | tmps = str_get(stab_val(defstab)); |
1435 | else |
1436 | tmps = str_get(st[1]); |
378cc40b |
1437 | for (;;) { |
1438 | switch (*tmps) { |
1439 | default: |
1440 | goto out; |
1441 | case '8': case '9': |
1442 | if (argtype != 4) |
1443 | goto out; |
1444 | /* FALL THROUGH */ |
1445 | case '0': case '1': case '2': case '3': case '4': |
1446 | case '5': case '6': case '7': |
1447 | anum <<= argtype; |
1448 | anum += *tmps++ & 15; |
1449 | break; |
1450 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
1451 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
1452 | if (argtype != 4) |
1453 | goto out; |
1454 | anum <<= 4; |
1455 | anum += (*tmps++ & 7) + 9; |
1456 | break; |
1457 | case 'x': |
1458 | argtype = 4; |
1459 | tmps++; |
1460 | break; |
1461 | } |
1462 | } |
1463 | out: |
1464 | value = (double)anum; |
1465 | goto donumset; |
378cc40b |
1466 | case O_CHOWN: |
b1248f16 |
1467 | #ifdef CHOWN |
1468 | value = (double)apply(optype,arglast); |
1469 | goto donumset; |
1470 | #else |
1471 | fatal("Unsupported function chown"); |
1472 | break; |
1473 | #endif |
378cc40b |
1474 | case O_KILL: |
b1248f16 |
1475 | #ifdef KILL |
1476 | value = (double)apply(optype,arglast); |
1477 | goto donumset; |
1478 | #else |
1479 | fatal("Unsupported function kill"); |
1480 | break; |
1481 | #endif |
378cc40b |
1482 | case O_UNLINK: |
b1248f16 |
1483 | case O_CHMOD: |
378cc40b |
1484 | case O_UTIME: |
a687059c |
1485 | value = (double)apply(optype,arglast); |
378cc40b |
1486 | goto donumset; |
1487 | case O_UMASK: |
b1248f16 |
1488 | #ifdef UMASK |
a687059c |
1489 | if (maxarg < 1) { |
1490 | anum = umask(0); |
1491 | (void)umask(anum); |
1492 | } |
1493 | else |
1494 | anum = umask((int)str_gnum(st[1])); |
1495 | value = (double)anum; |
1496 | #ifdef TAINT |
1497 | taintproper("Insecure dependency in umask"); |
1498 | #endif |
378cc40b |
1499 | goto donumset; |
b1248f16 |
1500 | #else |
1501 | fatal("Unsupported function umask"); |
1502 | break; |
1503 | #endif |
378cc40b |
1504 | case O_RENAME: |
a687059c |
1505 | tmps = str_get(st[1]); |
1506 | tmps2 = str_get(st[2]); |
1507 | #ifdef TAINT |
1508 | taintproper("Insecure dependency in rename"); |
1509 | #endif |
378cc40b |
1510 | #ifdef RENAME |
a687059c |
1511 | value = (double)(rename(tmps,tmps2) >= 0); |
378cc40b |
1512 | #else |
378cc40b |
1513 | if (euid || stat(tmps2,&statbuf) < 0 || |
1514 | (statbuf.st_mode & S_IFMT) != S_IFDIR ) |
a687059c |
1515 | (void)UNLINK(tmps2); /* avoid unlinking a directory */ |
378cc40b |
1516 | if (!(anum = link(tmps,tmps2))) |
1517 | anum = UNLINK(tmps); |
1518 | value = (double)(anum >= 0); |
1519 | #endif |
1520 | goto donumset; |
1521 | case O_LINK: |
b1248f16 |
1522 | #ifdef LINK |
a687059c |
1523 | tmps = str_get(st[1]); |
1524 | tmps2 = str_get(st[2]); |
1525 | #ifdef TAINT |
1526 | taintproper("Insecure dependency in link"); |
1527 | #endif |
1528 | value = (double)(link(tmps,tmps2) >= 0); |
1529 | goto donumset; |
b1248f16 |
1530 | #else |
1531 | fatal("Unsupported function link"); |
1532 | break; |
1533 | #endif |
a687059c |
1534 | case O_MKDIR: |
1535 | tmps = str_get(st[1]); |
1536 | anum = (int)str_gnum(st[2]); |
1537 | #ifdef TAINT |
1538 | taintproper("Insecure dependency in mkdir"); |
1539 | #endif |
1540 | #ifdef MKDIR |
1541 | value = (double)(mkdir(tmps,anum) >= 0); |
bf38876a |
1542 | goto donumset; |
a687059c |
1543 | #else |
bf38876a |
1544 | (void)strcpy(buf,"mkdir "); |
1545 | #endif |
1546 | #if !defined(MKDIR) || !defined(RMDIR) |
a687059c |
1547 | one_liner: |
bf38876a |
1548 | for (tmps2 = buf+6; *tmps; ) { |
1549 | *tmps2++ = '\\'; |
1550 | *tmps2++ = *tmps++; |
1551 | } |
1552 | (void)strcpy(tmps2," 2>&1"); |
a687059c |
1553 | rsfp = mypopen(buf,"r"); |
1554 | if (rsfp) { |
1555 | *buf = '\0'; |
1556 | tmps2 = fgets(buf,sizeof buf,rsfp); |
1557 | (void)mypclose(rsfp); |
1558 | if (tmps2 != Nullch) { |
bf38876a |
1559 | for (errno = 1; errno < sys_nerr; errno++) { |
a687059c |
1560 | if (instr(buf,sys_errlist[errno])) /* you don't see this */ |
1561 | goto say_zero; |
1562 | } |
1563 | errno = 0; |
bf38876a |
1564 | #ifndef EACCES |
1565 | #define EACCES EPERM |
1566 | #endif |
1567 | if (instr(buf,"cannot make")) |
1568 | errno = EEXIST; |
1569 | else if (instr(buf,"non-exist")) |
1570 | errno = ENOENT; |
afd9f252 |
1571 | else if (instr(buf,"does not exist")) |
1572 | errno = ENOENT; |
bf38876a |
1573 | else if (instr(buf,"not empty")) |
1574 | errno = EBUSY; |
1575 | else if (instr(buf,"cannot access")) |
1576 | errno = EACCES; |
1577 | else |
1578 | errno = EPERM; |
a687059c |
1579 | goto say_zero; |
1580 | } |
bf38876a |
1581 | else { /* some mkdirs return no failure indication */ |
1582 | tmps = str_get(st[1]); |
1583 | anum = (stat(tmps,&statbuf) >= 0); |
1584 | if (optype == O_RMDIR) |
1585 | anum = !anum; |
1586 | if (anum) |
1587 | errno = 0; |
1588 | else |
1589 | errno = EACCES; /* a guess */ |
1590 | value = (double)anum; |
1591 | } |
1592 | goto donumset; |
a687059c |
1593 | } |
1594 | else |
1595 | goto say_zero; |
1596 | #endif |
a687059c |
1597 | case O_RMDIR: |
1598 | if (maxarg < 1) |
1599 | tmps = str_get(stab_val(defstab)); |
1600 | else |
1601 | tmps = str_get(st[1]); |
1602 | #ifdef TAINT |
1603 | taintproper("Insecure dependency in rmdir"); |
1604 | #endif |
1605 | #ifdef RMDIR |
1606 | value = (double)(rmdir(tmps) >= 0); |
1607 | goto donumset; |
1608 | #else |
bf38876a |
1609 | (void)strcpy(buf,"rmdir "); |
a687059c |
1610 | goto one_liner; /* see above in MKDIR */ |
1611 | #endif |
1612 | case O_GETPPID: |
b1248f16 |
1613 | #ifdef GETPPID |
a687059c |
1614 | value = (double)getppid(); |
1615 | goto donumset; |
b1248f16 |
1616 | #else |
1617 | fatal("Unsupported function getppid"); |
1618 | break; |
1619 | #endif |
a687059c |
1620 | case O_GETPGRP: |
1621 | #ifdef GETPGRP |
1622 | if (maxarg < 1) |
1623 | anum = 0; |
1624 | else |
1625 | anum = (int)str_gnum(st[1]); |
1626 | value = (double)getpgrp(anum); |
1627 | goto donumset; |
1628 | #else |
1629 | fatal("The getpgrp() function is unimplemented on this machine"); |
1630 | break; |
1631 | #endif |
1632 | case O_SETPGRP: |
1633 | #ifdef SETPGRP |
1634 | argtype = (int)str_gnum(st[1]); |
1635 | anum = (int)str_gnum(st[2]); |
1636 | #ifdef TAINT |
1637 | taintproper("Insecure dependency in setpgrp"); |
1638 | #endif |
1639 | value = (double)(setpgrp(argtype,anum) >= 0); |
1640 | goto donumset; |
1641 | #else |
1642 | fatal("The setpgrp() function is unimplemented on this machine"); |
1643 | break; |
1644 | #endif |
1645 | case O_GETPRIORITY: |
1646 | #ifdef GETPRIORITY |
1647 | argtype = (int)str_gnum(st[1]); |
1648 | anum = (int)str_gnum(st[2]); |
1649 | value = (double)getpriority(argtype,anum); |
1650 | goto donumset; |
1651 | #else |
1652 | fatal("The getpriority() function is unimplemented on this machine"); |
1653 | break; |
1654 | #endif |
1655 | case O_SETPRIORITY: |
1656 | #ifdef SETPRIORITY |
1657 | argtype = (int)str_gnum(st[1]); |
1658 | anum = (int)str_gnum(st[2]); |
1659 | optype = (int)str_gnum(st[3]); |
1660 | #ifdef TAINT |
1661 | taintproper("Insecure dependency in setpriority"); |
1662 | #endif |
1663 | value = (double)(setpriority(argtype,anum,optype) >= 0); |
378cc40b |
1664 | goto donumset; |
a687059c |
1665 | #else |
1666 | fatal("The setpriority() function is unimplemented on this machine"); |
1667 | break; |
1668 | #endif |
1669 | case O_CHROOT: |
b1248f16 |
1670 | #ifdef CHROOT |
a687059c |
1671 | if (maxarg < 1) |
1672 | tmps = str_get(stab_val(defstab)); |
1673 | else |
1674 | tmps = str_get(st[1]); |
1675 | #ifdef TAINT |
1676 | taintproper("Insecure dependency in chroot"); |
1677 | #endif |
1678 | value = (double)(chroot(tmps) >= 0); |
1679 | goto donumset; |
b1248f16 |
1680 | #else |
1681 | fatal("Unsupported function chroot"); |
1682 | break; |
1683 | #endif |
a687059c |
1684 | case O_FCNTL: |
1685 | case O_IOCTL: |
1686 | if (maxarg <= 0) |
1687 | stab = last_in_stab; |
1688 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
1689 | stab = arg[1].arg_ptr.arg_stab; |
1690 | else |
1691 | stab = stabent(str_get(st[1]),TRUE); |
b1248f16 |
1692 | argtype = U_I(str_gnum(st[2])); |
a687059c |
1693 | #ifdef TAINT |
1694 | taintproper("Insecure dependency in ioctl"); |
1695 | #endif |
1696 | anum = do_ctl(optype,stab,argtype,st[3]); |
1697 | if (anum == -1) |
1698 | goto say_undef; |
b1248f16 |
1699 | if (anum != 0) { |
1700 | value = (double)anum; |
a687059c |
1701 | goto donumset; |
b1248f16 |
1702 | } |
a687059c |
1703 | str_set(str,"0 but true"); |
1704 | STABSET(str); |
1705 | break; |
1706 | case O_FLOCK: |
1707 | #ifdef FLOCK |
1708 | if (maxarg <= 0) |
1709 | stab = last_in_stab; |
1710 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
1711 | stab = arg[1].arg_ptr.arg_stab; |
1712 | else |
1713 | stab = stabent(str_get(st[1]),TRUE); |
1714 | if (stab && stab_io(stab)) |
1715 | fp = stab_io(stab)->ifp; |
1716 | else |
1717 | fp = Nullfp; |
1718 | if (fp) { |
1719 | argtype = (int)str_gnum(st[2]); |
1720 | value = (double)(flock(fileno(fp),argtype) >= 0); |
1721 | } |
1722 | else |
1723 | value = 0; |
1724 | goto donumset; |
1725 | #else |
1726 | fatal("The flock() function is unimplemented on this machine"); |
1727 | break; |
1728 | #endif |
378cc40b |
1729 | case O_UNSHIFT: |
a687059c |
1730 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
1731 | if (arglast[2] - arglast[1] != 1) |
1732 | do_unshift(ary,arglast); |
378cc40b |
1733 | else { |
a687059c |
1734 | str = Str_new(52,0); /* must copy the STR */ |
1735 | str_sset(str,st[2]); |
378cc40b |
1736 | aunshift(ary,1); |
a687059c |
1737 | (void)astore(ary,0,str); |
378cc40b |
1738 | } |
1739 | value = (double)(ary->ary_fill + 1); |
1740 | break; |
1741 | case O_DOFILE: |
1742 | case O_EVAL: |
a687059c |
1743 | if (maxarg < 1) |
1744 | tmpstr = stab_val(defstab); |
1745 | else |
1746 | tmpstr = |
1747 | (arg[1].arg_type & A_MASK) != A_NULL ? st[1] : stab_val(defstab); |
1748 | #ifdef TAINT |
1749 | tainted |= tmpstr->str_tainted; |
1750 | taintproper("Insecure dependency in eval"); |
1751 | #endif |
1752 | sp = do_eval(tmpstr, optype, arg[2].arg_ptr.arg_hash, |
1753 | gimme,arglast); |
1754 | goto array_return; |
378cc40b |
1755 | |
1756 | case O_FTRREAD: |
1757 | argtype = 0; |
1758 | anum = S_IREAD; |
1759 | goto check_perm; |
1760 | case O_FTRWRITE: |
1761 | argtype = 0; |
1762 | anum = S_IWRITE; |
1763 | goto check_perm; |
1764 | case O_FTREXEC: |
1765 | argtype = 0; |
1766 | anum = S_IEXEC; |
1767 | goto check_perm; |
1768 | case O_FTEREAD: |
1769 | argtype = 1; |
1770 | anum = S_IREAD; |
1771 | goto check_perm; |
1772 | case O_FTEWRITE: |
1773 | argtype = 1; |
1774 | anum = S_IWRITE; |
1775 | goto check_perm; |
1776 | case O_FTEEXEC: |
1777 | argtype = 1; |
1778 | anum = S_IEXEC; |
1779 | check_perm: |
a687059c |
1780 | if (mystat(arg,st[1]) < 0) |
1781 | goto say_undef; |
1782 | if (cando(anum,argtype,&statcache)) |
1783 | goto say_yes; |
1784 | goto say_no; |
378cc40b |
1785 | |
1786 | case O_FTIS: |
a687059c |
1787 | if (mystat(arg,st[1]) < 0) |
1788 | goto say_undef; |
1789 | goto say_yes; |
378cc40b |
1790 | case O_FTEOWNED: |
1791 | case O_FTROWNED: |
a687059c |
1792 | if (mystat(arg,st[1]) < 0) |
1793 | goto say_undef; |
1794 | if (statcache.st_uid == (optype == O_FTEOWNED ? euid : uid) ) |
1795 | goto say_yes; |
1796 | goto say_no; |
378cc40b |
1797 | case O_FTZERO: |
a687059c |
1798 | if (mystat(arg,st[1]) < 0) |
1799 | goto say_undef; |
1800 | if (!statcache.st_size) |
1801 | goto say_yes; |
1802 | goto say_no; |
378cc40b |
1803 | case O_FTSIZE: |
a687059c |
1804 | if (mystat(arg,st[1]) < 0) |
1805 | goto say_undef; |
1806 | if (statcache.st_size) |
1807 | goto say_yes; |
1808 | goto say_no; |
378cc40b |
1809 | |
1810 | case O_FTSOCK: |
1811 | #ifdef S_IFSOCK |
1812 | anum = S_IFSOCK; |
1813 | goto check_file_type; |
1814 | #else |
a687059c |
1815 | goto say_no; |
378cc40b |
1816 | #endif |
1817 | case O_FTCHR: |
1818 | anum = S_IFCHR; |
1819 | goto check_file_type; |
1820 | case O_FTBLK: |
b1248f16 |
1821 | #ifdef S_IFBLK |
378cc40b |
1822 | anum = S_IFBLK; |
1823 | goto check_file_type; |
b1248f16 |
1824 | #else |
1825 | goto say_no; |
1826 | #endif |
378cc40b |
1827 | case O_FTFILE: |
1828 | anum = S_IFREG; |
1829 | goto check_file_type; |
1830 | case O_FTDIR: |
1831 | anum = S_IFDIR; |
1832 | check_file_type: |
a687059c |
1833 | if (mystat(arg,st[1]) < 0) |
1834 | goto say_undef; |
1835 | if ((statcache.st_mode & S_IFMT) == anum ) |
1836 | goto say_yes; |
1837 | goto say_no; |
378cc40b |
1838 | case O_FTPIPE: |
1839 | #ifdef S_IFIFO |
1840 | anum = S_IFIFO; |
1841 | goto check_file_type; |
1842 | #else |
a687059c |
1843 | goto say_no; |
378cc40b |
1844 | #endif |
1845 | case O_FTLINK: |
afd9f252 |
1846 | if (arg[1].arg_type & A_DONT) |
1847 | fatal("You must supply explicit filename with -l"); |
0d3e774c |
1848 | #ifdef LSTAT |
a687059c |
1849 | if (lstat(str_get(st[1]),&statcache) < 0) |
1850 | goto say_undef; |
1851 | if ((statcache.st_mode & S_IFMT) == S_IFLNK ) |
1852 | goto say_yes; |
378cc40b |
1853 | #endif |
a687059c |
1854 | goto say_no; |
378cc40b |
1855 | case O_SYMLINK: |
1856 | #ifdef SYMLINK |
a687059c |
1857 | tmps = str_get(st[1]); |
1858 | tmps2 = str_get(st[2]); |
1859 | #ifdef TAINT |
1860 | taintproper("Insecure dependency in symlink"); |
1861 | #endif |
1862 | value = (double)(symlink(tmps,tmps2) >= 0); |
378cc40b |
1863 | goto donumset; |
1864 | #else |
b1248f16 |
1865 | fatal("Unsupported function symlink"); |
378cc40b |
1866 | #endif |
a687059c |
1867 | case O_READLINK: |
1868 | #ifdef SYMLINK |
1869 | if (maxarg < 1) |
1870 | tmps = str_get(stab_val(defstab)); |
1871 | else |
1872 | tmps = str_get(st[1]); |
1873 | anum = readlink(tmps,buf,sizeof buf); |
1874 | if (anum < 0) |
1875 | goto say_undef; |
1876 | str_nset(str,buf,anum); |
1877 | break; |
1878 | #else |
b1248f16 |
1879 | fatal("Unsupported function readlink"); |
a687059c |
1880 | #endif |
378cc40b |
1881 | case O_FTSUID: |
b1248f16 |
1882 | #ifdef S_ISUID |
378cc40b |
1883 | anum = S_ISUID; |
1884 | goto check_xid; |
b1248f16 |
1885 | #else |
1886 | goto say_no; |
1887 | #endif |
378cc40b |
1888 | case O_FTSGID: |
b1248f16 |
1889 | #ifdef S_ISGID |
378cc40b |
1890 | anum = S_ISGID; |
1891 | goto check_xid; |
b1248f16 |
1892 | #else |
1893 | goto say_no; |
1894 | #endif |
378cc40b |
1895 | case O_FTSVTX: |
b1248f16 |
1896 | #ifdef S_ISVTX |
378cc40b |
1897 | anum = S_ISVTX; |
b1248f16 |
1898 | #else |
1899 | goto say_no; |
1900 | #endif |
378cc40b |
1901 | check_xid: |
a687059c |
1902 | if (mystat(arg,st[1]) < 0) |
1903 | goto say_undef; |
1904 | if (statcache.st_mode & anum) |
1905 | goto say_yes; |
1906 | goto say_no; |
378cc40b |
1907 | case O_FTTTY: |
a687059c |
1908 | if (arg[1].arg_type & A_DONT) { |
378cc40b |
1909 | stab = arg[1].arg_ptr.arg_stab; |
1910 | tmps = ""; |
1911 | } |
1912 | else |
a687059c |
1913 | stab = stabent(tmps = str_get(st[1]),FALSE); |
1914 | if (stab && stab_io(stab) && stab_io(stab)->ifp) |
1915 | anum = fileno(stab_io(stab)->ifp); |
378cc40b |
1916 | else if (isdigit(*tmps)) |
1917 | anum = atoi(tmps); |
1918 | else |
a687059c |
1919 | goto say_undef; |
378cc40b |
1920 | if (isatty(anum)) |
a687059c |
1921 | goto say_yes; |
1922 | goto say_no; |
378cc40b |
1923 | case O_FTTEXT: |
1924 | case O_FTBINARY: |
a687059c |
1925 | str = do_fttext(arg,st[1]); |
378cc40b |
1926 | break; |
a687059c |
1927 | #ifdef SOCKET |
1928 | case O_SOCKET: |
1929 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1930 | stab = arg[1].arg_ptr.arg_stab; |
1931 | else |
1932 | stab = stabent(str_get(st[1]),TRUE); |
1933 | #ifndef lint |
1934 | value = (double)do_socket(stab,arglast); |
1935 | #else |
1936 | (void)do_socket(stab,arglast); |
1937 | #endif |
1938 | goto donumset; |
1939 | case O_BIND: |
1940 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1941 | stab = arg[1].arg_ptr.arg_stab; |
1942 | else |
1943 | stab = stabent(str_get(st[1]),TRUE); |
1944 | #ifndef lint |
1945 | value = (double)do_bind(stab,arglast); |
1946 | #else |
1947 | (void)do_bind(stab,arglast); |
1948 | #endif |
1949 | goto donumset; |
1950 | case O_CONNECT: |
1951 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1952 | stab = arg[1].arg_ptr.arg_stab; |
1953 | else |
1954 | stab = stabent(str_get(st[1]),TRUE); |
1955 | #ifndef lint |
1956 | value = (double)do_connect(stab,arglast); |
1957 | #else |
1958 | (void)do_connect(stab,arglast); |
1959 | #endif |
1960 | goto donumset; |
1961 | case O_LISTEN: |
1962 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1963 | stab = arg[1].arg_ptr.arg_stab; |
1964 | else |
1965 | stab = stabent(str_get(st[1]),TRUE); |
1966 | #ifndef lint |
1967 | value = (double)do_listen(stab,arglast); |
1968 | #else |
1969 | (void)do_listen(stab,arglast); |
1970 | #endif |
1971 | goto donumset; |
1972 | case O_ACCEPT: |
1973 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1974 | stab = arg[1].arg_ptr.arg_stab; |
1975 | else |
1976 | stab = stabent(str_get(st[1]),TRUE); |
1977 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
1978 | stab2 = arg[2].arg_ptr.arg_stab; |
1979 | else |
1980 | stab2 = stabent(str_get(st[2]),TRUE); |
1981 | do_accept(str,stab,stab2); |
1982 | STABSET(str); |
1983 | break; |
1984 | case O_GHBYNAME: |
1985 | if (maxarg < 1) |
1986 | goto say_undef; |
1987 | case O_GHBYADDR: |
1988 | case O_GHOSTENT: |
1989 | sp = do_ghent(optype, |
1990 | gimme,arglast); |
1991 | goto array_return; |
1992 | case O_GNBYNAME: |
1993 | if (maxarg < 1) |
1994 | goto say_undef; |
1995 | case O_GNBYADDR: |
1996 | case O_GNETENT: |
1997 | sp = do_gnent(optype, |
1998 | gimme,arglast); |
1999 | goto array_return; |
2000 | case O_GPBYNAME: |
2001 | if (maxarg < 1) |
2002 | goto say_undef; |
2003 | case O_GPBYNUMBER: |
2004 | case O_GPROTOENT: |
2005 | sp = do_gpent(optype, |
2006 | gimme,arglast); |
2007 | goto array_return; |
2008 | case O_GSBYNAME: |
2009 | if (maxarg < 1) |
2010 | goto say_undef; |
2011 | case O_GSBYPORT: |
2012 | case O_GSERVENT: |
2013 | sp = do_gsent(optype, |
2014 | gimme,arglast); |
2015 | goto array_return; |
2016 | case O_SHOSTENT: |
2017 | value = (double) sethostent((int)str_gnum(st[1])); |
2018 | goto donumset; |
2019 | case O_SNETENT: |
2020 | value = (double) setnetent((int)str_gnum(st[1])); |
2021 | goto donumset; |
2022 | case O_SPROTOENT: |
2023 | value = (double) setprotoent((int)str_gnum(st[1])); |
2024 | goto donumset; |
2025 | case O_SSERVENT: |
2026 | value = (double) setservent((int)str_gnum(st[1])); |
2027 | goto donumset; |
2028 | case O_EHOSTENT: |
2029 | value = (double) endhostent(); |
2030 | goto donumset; |
2031 | case O_ENETENT: |
2032 | value = (double) endnetent(); |
2033 | goto donumset; |
2034 | case O_EPROTOENT: |
2035 | value = (double) endprotoent(); |
2036 | goto donumset; |
2037 | case O_ESERVENT: |
2038 | value = (double) endservent(); |
2039 | goto donumset; |
2040 | case O_SSELECT: |
2041 | sp = do_select(gimme,arglast); |
2042 | goto array_return; |
2043 | case O_SOCKETPAIR: |
2044 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2045 | stab = arg[1].arg_ptr.arg_stab; |
2046 | else |
2047 | stab = stabent(str_get(st[1]),TRUE); |
2048 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
2049 | stab2 = arg[2].arg_ptr.arg_stab; |
2050 | else |
2051 | stab2 = stabent(str_get(st[2]),TRUE); |
2052 | #ifndef lint |
2053 | value = (double)do_spair(stab,stab2,arglast); |
2054 | #else |
2055 | (void)do_spair(stab,stab2,arglast); |
2056 | #endif |
2057 | goto donumset; |
2058 | case O_SHUTDOWN: |
2059 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2060 | stab = arg[1].arg_ptr.arg_stab; |
2061 | else |
2062 | stab = stabent(str_get(st[1]),TRUE); |
2063 | #ifndef lint |
2064 | value = (double)do_shutdown(stab,arglast); |
2065 | #else |
2066 | (void)do_shutdown(stab,arglast); |
2067 | #endif |
2068 | goto donumset; |
2069 | case O_GSOCKOPT: |
2070 | case O_SSOCKOPT: |
2071 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2072 | stab = arg[1].arg_ptr.arg_stab; |
2073 | else |
2074 | stab = stabent(str_get(st[1]),TRUE); |
2075 | sp = do_sopt(optype,stab,arglast); |
2076 | goto array_return; |
2077 | case O_GETSOCKNAME: |
2078 | case O_GETPEERNAME: |
2079 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2080 | stab = arg[1].arg_ptr.arg_stab; |
2081 | else |
2082 | stab = stabent(str_get(st[1]),TRUE); |
2083 | sp = do_getsockname(optype,stab,arglast); |
2084 | goto array_return; |
2085 | |
2086 | #else /* SOCKET not defined */ |
2087 | case O_SOCKET: |
2088 | case O_BIND: |
2089 | case O_CONNECT: |
2090 | case O_LISTEN: |
2091 | case O_ACCEPT: |
2092 | case O_SSELECT: |
2093 | case O_SOCKETPAIR: |
2094 | case O_GHBYNAME: |
2095 | case O_GHBYADDR: |
2096 | case O_GHOSTENT: |
2097 | case O_GNBYNAME: |
2098 | case O_GNBYADDR: |
2099 | case O_GNETENT: |
2100 | case O_GPBYNAME: |
2101 | case O_GPBYNUMBER: |
2102 | case O_GPROTOENT: |
2103 | case O_GSBYNAME: |
2104 | case O_GSBYPORT: |
2105 | case O_GSERVENT: |
2106 | case O_SHOSTENT: |
2107 | case O_SNETENT: |
2108 | case O_SPROTOENT: |
2109 | case O_SSERVENT: |
2110 | case O_EHOSTENT: |
2111 | case O_ENETENT: |
2112 | case O_EPROTOENT: |
2113 | case O_ESERVENT: |
2114 | case O_SHUTDOWN: |
2115 | case O_GSOCKOPT: |
2116 | case O_SSOCKOPT: |
2117 | case O_GETSOCKNAME: |
2118 | case O_GETPEERNAME: |
2119 | badsock: |
2120 | fatal("Unsupported socket function"); |
2121 | #endif /* SOCKET */ |
2122 | case O_FILENO: |
bf38876a |
2123 | if (maxarg < 1) |
2124 | goto say_undef; |
a687059c |
2125 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2126 | stab = arg[1].arg_ptr.arg_stab; |
2127 | else |
2128 | stab = stabent(str_get(st[1]),TRUE); |
2129 | if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp)) |
2130 | goto say_undef; |
2131 | value = fileno(fp); |
2132 | goto donumset; |
b1248f16 |
2133 | case O_BINMODE: |
2134 | if (maxarg < 1) |
2135 | goto say_undef; |
2136 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2137 | stab = arg[1].arg_ptr.arg_stab; |
2138 | else |
2139 | stab = stabent(str_get(st[1]),TRUE); |
2140 | if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp)) |
2141 | goto say_undef; |
2142 | #ifdef MSDOS |
2143 | str_set(str, (setmode(fileno(fp), O_BINARY) != -1) ? Yes : No); |
2144 | #else |
2145 | str_set(str, Yes); |
2146 | #endif |
2147 | STABSET(str); |
2148 | break; |
a687059c |
2149 | case O_VEC: |
2150 | sp = do_vec(str == st[1], arg->arg_ptr.arg_str, arglast); |
2151 | goto array_return; |
2152 | case O_GPWNAM: |
2153 | case O_GPWUID: |
2154 | case O_GPWENT: |
b1248f16 |
2155 | #ifdef PASSWD |
a687059c |
2156 | sp = do_gpwent(optype, |
2157 | gimme,arglast); |
2158 | goto array_return; |
2159 | case O_SPWENT: |
2160 | value = (double) setpwent(); |
2161 | goto donumset; |
2162 | case O_EPWENT: |
2163 | value = (double) endpwent(); |
2164 | goto donumset; |
b1248f16 |
2165 | #else |
2166 | case O_EPWENT: |
2167 | case O_SPWENT: |
2168 | fatal("Unsupported password function"); |
2169 | break; |
2170 | #endif |
a687059c |
2171 | case O_GGRNAM: |
2172 | case O_GGRGID: |
2173 | case O_GGRENT: |
b1248f16 |
2174 | #ifdef GROUP |
a687059c |
2175 | sp = do_ggrent(optype, |
2176 | gimme,arglast); |
2177 | goto array_return; |
2178 | case O_SGRENT: |
2179 | value = (double) setgrent(); |
2180 | goto donumset; |
2181 | case O_EGRENT: |
2182 | value = (double) endgrent(); |
2183 | goto donumset; |
b1248f16 |
2184 | #else |
2185 | case O_EGRENT: |
2186 | case O_SGRENT: |
2187 | fatal("Unsupported group function"); |
2188 | break; |
2189 | #endif |
a687059c |
2190 | case O_GETLOGIN: |
b1248f16 |
2191 | #ifdef GETLOGIN |
a687059c |
2192 | if (!(tmps = getlogin())) |
2193 | goto say_undef; |
2194 | str_set(str,tmps); |
b1248f16 |
2195 | #else |
2196 | fatal("Unsupported function getlogin"); |
2197 | #endif |
a687059c |
2198 | break; |
2199 | case O_OPENDIR: |
2200 | case O_READDIR: |
2201 | case O_TELLDIR: |
2202 | case O_SEEKDIR: |
2203 | case O_REWINDDIR: |
2204 | case O_CLOSEDIR: |
bf38876a |
2205 | if (maxarg < 1) |
2206 | goto say_undef; |
a687059c |
2207 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2208 | stab = arg[1].arg_ptr.arg_stab; |
2209 | else |
2210 | stab = stabent(str_get(st[1]),TRUE); |
2211 | sp = do_dirop(optype,stab,gimme,arglast); |
2212 | goto array_return; |
2213 | case O_SYSCALL: |
2214 | value = (double)do_syscall(arglast); |
2215 | goto donumset; |
afd9f252 |
2216 | case O_PIPE: |
b1248f16 |
2217 | #ifdef PIPE |
afd9f252 |
2218 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2219 | stab = arg[1].arg_ptr.arg_stab; |
2220 | else |
2221 | stab = stabent(str_get(st[1]),TRUE); |
2222 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
2223 | stab2 = arg[2].arg_ptr.arg_stab; |
2224 | else |
2225 | stab2 = stabent(str_get(st[2]),TRUE); |
2226 | do_pipe(str,stab,stab2); |
2227 | STABSET(str); |
b1248f16 |
2228 | #else |
2229 | fatal("Unsupported function pipe"); |
2230 | #endif |
afd9f252 |
2231 | break; |
378cc40b |
2232 | } |
a687059c |
2233 | |
2234 | normal_return: |
2235 | st[1] = str; |
378cc40b |
2236 | #ifdef DEBUGGING |
2237 | if (debug) { |
2238 | dlevel--; |
2239 | if (debug & 8) |
2240 | deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str)); |
2241 | } |
2242 | #endif |
a687059c |
2243 | return arglast[0] + 1; |
378cc40b |
2244 | |
2245 | array_return: |
2246 | #ifdef DEBUGGING |
2247 | if (debug) { |
2248 | dlevel--; |
afd9f252 |
2249 | if (debug & 8) { |
2250 | anum = sp - arglast[0]; |
2251 | switch (anum) { |
2252 | case 0: |
2253 | deb("%s RETURNS ()\n",opname[optype]); |
2254 | break; |
2255 | case 1: |
2256 | deb("%s RETURNS (\"%s\")\n",opname[optype],str_get(st[1])); |
2257 | break; |
2258 | default: |
2259 | deb("%s RETURNS %d ARGS (\"%s\",%s\"%s\"\n",opname[optype],anum, |
2260 | str_get(st[1]),anum==2?"":"...,",str_get(st[anum])); |
2261 | break; |
2262 | } |
2263 | } |
378cc40b |
2264 | } |
2265 | #endif |
a687059c |
2266 | return sp; |
2267 | |
2268 | say_yes: |
2269 | str = &str_yes; |
2270 | goto normal_return; |
2271 | |
2272 | say_no: |
2273 | str = &str_no; |
2274 | goto normal_return; |
2275 | |
2276 | say_undef: |
2277 | str = &str_undef; |
2278 | goto normal_return; |
2279 | |
2280 | say_zero: |
2281 | value = 0.0; |
2282 | /* FALL THROUGH */ |
378cc40b |
2283 | |
2284 | donumset: |
2285 | str_numset(str,value); |
2286 | STABSET(str); |
a687059c |
2287 | st[1] = str; |
378cc40b |
2288 | #ifdef DEBUGGING |
2289 | if (debug) { |
2290 | dlevel--; |
2291 | if (debug & 8) |
2292 | deb("%s RETURNS \"%f\"\n",opname[optype],value); |
2293 | } |
2294 | #endif |
a687059c |
2295 | return arglast[0] + 1; |
378cc40b |
2296 | } |