Commit | Line | Data |
154e51a4 |
1 | /* $Header: eval.c,v 3.0.1.7 90/08/09 03:33:44 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 $ |
154e51a4 |
9 | * Revision 3.0.1.7 90/08/09 03:33:44 lwall |
10 | * patch19: made ~ do vector operation on strings like &, | and ^ |
11 | * patch19: dbmopen(%name...) didn't work right |
12 | * patch19: dbmopen(name, 'filename', undef) now refrains from creating |
13 | * patch19: empty %array now returns 0 in scalar context |
14 | * patch19: die with no arguments no longer exits unconditionally |
15 | * patch19: return outside a subroutine now returns a reasonable message |
16 | * patch19: rename done with unlink()/link()/unlink() now checks for clobbering |
17 | * patch19: -s now returns size of file |
18 | * |
b1248f16 |
19 | * Revision 3.0.1.6 90/03/27 15:53:51 lwall |
20 | * patch16: MSDOS support |
21 | * patch16: support for machines that can't cast negative floats to unsigned ints |
22 | * patch16: ioctl didn't return values correctly |
23 | * |
79a0689e |
24 | * Revision 3.0.1.5 90/03/12 16:37:40 lwall |
25 | * patch13: undef $/ didn't work as advertised |
26 | * patch13: added list slice operator (LIST)[LIST] |
27 | * patch13: added splice operator: @oldelems = splice(@array,$offset,$len,LIST) |
28 | * |
afd9f252 |
29 | * Revision 3.0.1.4 90/02/28 17:36:59 lwall |
30 | * patch9: added pipe function |
31 | * patch9: a return in scalar context wouldn't return array |
32 | * patch9: !~ now always returns scalar even in array context |
33 | * patch9: some machines can't cast float to long with high bit set |
34 | * patch9: piped opens returned undef in child |
35 | * patch9: @array in scalar context now returns length of array |
36 | * patch9: chdir; coredumped |
37 | * patch9: wait no longer ignores signals |
38 | * patch9: mkdir now handles odd versions of /bin/mkdir |
39 | * patch9: -l FILEHANDLE now disallowed |
40 | * |
663a0e37 |
41 | * Revision 3.0.1.3 89/12/21 20:03:05 lwall |
42 | * patch7: errno may now be a macro with an lvalue |
43 | * patch7: ANSI strerror() is now supported |
44 | * patch7: send() didn't allow a TO argument |
45 | * patch7: ord() now always returns positive even on signed char machines |
46 | * |
0d3e774c |
47 | * Revision 3.0.1.2 89/11/17 15:19:34 lwall |
663a0e37 |
48 | * patch5: constant numeric subscripts get lost inside ?: |
0d3e774c |
49 | * |
bf38876a |
50 | * Revision 3.0.1.1 89/11/11 04:31:51 lwall |
51 | * patch2: mkdir and rmdir needed to quote argument when passed to shell |
52 | * patch2: mkdir and rmdir now return better error codes |
53 | * patch2: fileno, seekdir, rewinddir and closedir now disallow defaults |
54 | * |
a687059c |
55 | * Revision 3.0 89/10/18 15:17:04 lwall |
56 | * 3.0 baseline |
378cc40b |
57 | * |
58 | */ |
59 | |
60 | #include "EXTERN.h" |
61 | #include "perl.h" |
62 | |
154e51a4 |
63 | #ifndef NSIG |
378cc40b |
64 | #include <signal.h> |
154e51a4 |
65 | #endif |
378cc40b |
66 | |
b1248f16 |
67 | #ifdef I_FCNTL |
68 | #include <fcntl.h> |
69 | #endif |
a687059c |
70 | #ifdef I_VFORK |
71 | # include <vfork.h> |
72 | #endif |
73 | |
378cc40b |
74 | #ifdef VOIDSIG |
75 | static void (*ihand)(); |
76 | static void (*qhand)(); |
77 | #else |
78 | static int (*ihand)(); |
79 | static int (*qhand)(); |
80 | #endif |
81 | |
82 | ARG *debarg; |
83 | STR str_args; |
a687059c |
84 | static STAB *stab2; |
85 | static STIO *stio; |
86 | static struct lstring *lstr; |
79a0689e |
87 | static int old_record_separator; |
afd9f252 |
88 | extern int wantarray; |
378cc40b |
89 | |
a687059c |
90 | double sin(), cos(), atan2(), pow(); |
91 | |
92 | char *getlogin(); |
93 | |
a687059c |
94 | int |
95 | eval(arg,gimme,sp) |
378cc40b |
96 | register ARG *arg; |
a687059c |
97 | int gimme; |
98 | register int sp; |
378cc40b |
99 | { |
100 | register STR *str; |
101 | register int anum; |
102 | register int optype; |
a687059c |
103 | register STR **st; |
378cc40b |
104 | int maxarg; |
378cc40b |
105 | double value; |
378cc40b |
106 | register char *tmps; |
107 | char *tmps2; |
108 | int argflags; |
109 | int argtype; |
110 | union argptr argptr; |
a687059c |
111 | int arglast[8]; /* highest sp for arg--valid only for non-O_LIST args */ |
378cc40b |
112 | unsigned long tmplong; |
113 | long when; |
114 | FILE *fp; |
115 | STR *tmpstr; |
116 | FCMD *form; |
117 | STAB *stab; |
118 | ARRAY *ary; |
119 | bool assigning = FALSE; |
120 | double exp(), log(), sqrt(), modf(); |
121 | char *crypt(), *getenv(); |
a687059c |
122 | extern void grow_dlevel(); |
378cc40b |
123 | |
124 | if (!arg) |
a687059c |
125 | goto say_undef; |
378cc40b |
126 | optype = arg->arg_type; |
a687059c |
127 | maxarg = arg->arg_len; |
128 | arglast[0] = sp; |
129 | str = arg->arg_ptr.arg_str; |
130 | if (sp + maxarg > stack->ary_max) |
131 | astore(stack, sp + maxarg, Nullstr); |
132 | st = stack->ary_array; |
133 | |
378cc40b |
134 | #ifdef DEBUGGING |
135 | if (debug) { |
136 | if (debug & 8) { |
137 | deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg); |
138 | } |
139 | debname[dlevel] = opname[optype][0]; |
a687059c |
140 | debdelim[dlevel] = ':'; |
141 | if (++dlevel >= dlmax) |
142 | grow_dlevel(); |
378cc40b |
143 | } |
144 | #endif |
378cc40b |
145 | |
a687059c |
146 | #include "evalargs.xc" |
147 | |
148 | st += arglast[0]; |
378cc40b |
149 | switch (optype) { |
a687059c |
150 | case O_RCAT: |
151 | STABSET(str); |
152 | break; |
378cc40b |
153 | case O_ITEM: |
a687059c |
154 | if (gimme == G_ARRAY) |
378cc40b |
155 | goto array_return; |
a687059c |
156 | STR_SSET(str,st[1]); |
378cc40b |
157 | STABSET(str); |
158 | break; |
159 | case O_ITEM2: |
a687059c |
160 | if (gimme == G_ARRAY) |
161 | goto array_return; |
162 | --anum; |
163 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
378cc40b |
164 | STABSET(str); |
165 | break; |
166 | case O_ITEM3: |
a687059c |
167 | if (gimme == G_ARRAY) |
168 | goto array_return; |
169 | --anum; |
170 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
378cc40b |
171 | STABSET(str); |
172 | break; |
173 | case O_CONCAT: |
a687059c |
174 | STR_SSET(str,st[1]); |
175 | str_scat(str,st[2]); |
378cc40b |
176 | STABSET(str); |
177 | break; |
178 | case O_REPEAT: |
a687059c |
179 | STR_SSET(str,st[1]); |
180 | anum = (int)str_gnum(st[2]); |
378cc40b |
181 | if (anum >= 1) { |
afd9f252 |
182 | tmpstr = Str_new(50, 0); |
378cc40b |
183 | str_sset(tmpstr,str); |
afd9f252 |
184 | tmps = str_get(tmpstr); /* force to be string */ |
185 | STR_GROW(str, (anum * str->str_cur) + 1); |
186 | repeatcpy(str->str_ptr, tmps, tmpstr->str_cur, anum); |
79a0689e |
187 | str->str_cur *= anum; |
188 | str->str_ptr[str->str_cur] = '\0'; |
378cc40b |
189 | } |
190 | else |
191 | str_sset(str,&str_no); |
192 | STABSET(str); |
193 | break; |
194 | case O_MATCH: |
a687059c |
195 | sp = do_match(str,arg, |
196 | gimme,arglast); |
197 | if (gimme == G_ARRAY) |
378cc40b |
198 | goto array_return; |
378cc40b |
199 | STABSET(str); |
200 | break; |
201 | case O_NMATCH: |
a687059c |
202 | sp = do_match(str,arg, |
afd9f252 |
203 | G_SCALAR,arglast); |
a687059c |
204 | str_sset(str, str_true(str) ? &str_no : &str_yes); |
378cc40b |
205 | STABSET(str); |
206 | break; |
207 | case O_SUBST: |
a687059c |
208 | sp = do_subst(str,arg,arglast[0]); |
209 | goto array_return; |
378cc40b |
210 | case O_NSUBST: |
a687059c |
211 | sp = do_subst(str,arg,arglast[0]); |
378cc40b |
212 | str = arg->arg_ptr.arg_str; |
a687059c |
213 | str_set(str, str_true(str) ? No : Yes); |
214 | goto array_return; |
378cc40b |
215 | case O_ASSIGN: |
a687059c |
216 | if (arg[1].arg_flags & AF_ARYOK) { |
217 | if (arg->arg_len == 1) { |
218 | arg->arg_type = O_LOCAL; |
a687059c |
219 | goto local; |
220 | } |
221 | else { |
222 | arg->arg_type = O_AASSIGN; |
223 | goto aassign; |
224 | } |
225 | } |
378cc40b |
226 | else { |
a687059c |
227 | arg->arg_type = O_SASSIGN; |
228 | goto sassign; |
378cc40b |
229 | } |
a687059c |
230 | case O_LOCAL: |
231 | local: |
232 | arglast[2] = arglast[1]; /* push a null array */ |
233 | /* FALL THROUGH */ |
234 | case O_AASSIGN: |
235 | aassign: |
236 | sp = do_assign(arg, |
237 | gimme,arglast); |
238 | goto array_return; |
239 | case O_SASSIGN: |
240 | sassign: |
241 | STR_SSET(str, st[2]); |
242 | STABSET(str); |
378cc40b |
243 | break; |
244 | case O_CHOP: |
a687059c |
245 | st -= arglast[0]; |
378cc40b |
246 | str = arg->arg_ptr.arg_str; |
a687059c |
247 | for (sp = arglast[0] + 1; sp <= arglast[1]; sp++) |
248 | do_chop(str,st[sp]); |
249 | st += arglast[0]; |
378cc40b |
250 | break; |
a687059c |
251 | case O_DEFINED: |
252 | if (arg[1].arg_type & A_DONT) { |
253 | sp = do_defined(str,arg, |
254 | gimme,arglast); |
255 | goto array_return; |
256 | } |
257 | else if (str->str_pok || str->str_nok) |
258 | goto say_yes; |
259 | goto say_no; |
260 | case O_UNDEF: |
261 | if (arg[1].arg_type & A_DONT) { |
262 | sp = do_undef(str,arg, |
263 | gimme,arglast); |
264 | goto array_return; |
265 | } |
266 | else if (str != stab_val(defstab)) { |
267 | str->str_pok = str->str_nok = 0; |
268 | STABSET(str); |
269 | } |
270 | goto say_undef; |
378cc40b |
271 | case O_STUDY: |
a687059c |
272 | sp = do_study(str,arg, |
273 | gimme,arglast); |
274 | goto array_return; |
275 | case O_POW: |
276 | value = str_gnum(st[1]); |
277 | value = pow(value,str_gnum(st[2])); |
378cc40b |
278 | goto donumset; |
279 | case O_MULTIPLY: |
a687059c |
280 | value = str_gnum(st[1]); |
281 | value *= str_gnum(st[2]); |
378cc40b |
282 | goto donumset; |
283 | case O_DIVIDE: |
a687059c |
284 | if ((value = str_gnum(st[2])) == 0.0) |
378cc40b |
285 | fatal("Illegal division by zero"); |
a687059c |
286 | value = str_gnum(st[1]) / value; |
378cc40b |
287 | goto donumset; |
288 | case O_MODULO: |
a687059c |
289 | tmplong = (long) str_gnum(st[2]); |
290 | if (tmplong == 0L) |
378cc40b |
291 | fatal("Illegal modulus zero"); |
a687059c |
292 | when = (long)str_gnum(st[1]); |
293 | #ifndef lint |
294 | if (when >= 0) |
295 | value = (double)(when % tmplong); |
296 | else |
154e51a4 |
297 | value = (double)(tmplong - ((-when - 1) % tmplong)) - 1; |
a687059c |
298 | #endif |
378cc40b |
299 | goto donumset; |
300 | case O_ADD: |
a687059c |
301 | value = str_gnum(st[1]); |
302 | value += str_gnum(st[2]); |
378cc40b |
303 | goto donumset; |
304 | case O_SUBTRACT: |
a687059c |
305 | value = str_gnum(st[1]); |
306 | value -= str_gnum(st[2]); |
378cc40b |
307 | goto donumset; |
308 | case O_LEFT_SHIFT: |
a687059c |
309 | value = str_gnum(st[1]); |
310 | anum = (int)str_gnum(st[2]); |
311 | #ifndef lint |
b1248f16 |
312 | value = (double)(U_L(value) << anum); |
a687059c |
313 | #endif |
378cc40b |
314 | goto donumset; |
315 | case O_RIGHT_SHIFT: |
a687059c |
316 | value = str_gnum(st[1]); |
317 | anum = (int)str_gnum(st[2]); |
318 | #ifndef lint |
b1248f16 |
319 | value = (double)(U_L(value) >> anum); |
a687059c |
320 | #endif |
378cc40b |
321 | goto donumset; |
322 | case O_LT: |
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_GT: |
a687059c |
327 | value = str_gnum(st[1]); |
328 | value = (value > str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
329 | goto donumset; |
330 | case O_LE: |
a687059c |
331 | value = str_gnum(st[1]); |
332 | value = (value <= str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
333 | goto donumset; |
334 | case O_GE: |
a687059c |
335 | value = str_gnum(st[1]); |
336 | value = (value >= str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
337 | goto donumset; |
338 | case O_EQ: |
a687059c |
339 | if (dowarn) { |
340 | if ((!st[1]->str_nok && !looks_like_number(st[1])) || |
341 | (!st[2]->str_nok && !looks_like_number(st[2])) ) |
342 | warn("Possible use of == on string value"); |
343 | } |
344 | value = str_gnum(st[1]); |
345 | value = (value == str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
346 | goto donumset; |
347 | case O_NE: |
a687059c |
348 | value = str_gnum(st[1]); |
349 | value = (value != str_gnum(st[2])) ? 1.0 : 0.0; |
378cc40b |
350 | goto donumset; |
351 | case O_BIT_AND: |
a687059c |
352 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
353 | value = str_gnum(st[1]); |
354 | #ifndef lint |
b1248f16 |
355 | value = (double)(U_L(value) & U_L(str_gnum(st[2]))); |
a687059c |
356 | #endif |
357 | goto donumset; |
358 | } |
359 | else |
360 | do_vop(optype,str,st[1],st[2]); |
361 | break; |
378cc40b |
362 | case O_XOR: |
a687059c |
363 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
364 | value = str_gnum(st[1]); |
365 | #ifndef lint |
b1248f16 |
366 | value = (double)(U_L(value) ^ U_L(str_gnum(st[2]))); |
a687059c |
367 | #endif |
368 | goto donumset; |
369 | } |
370 | else |
371 | do_vop(optype,str,st[1],st[2]); |
372 | break; |
378cc40b |
373 | case O_BIT_OR: |
a687059c |
374 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
375 | value = str_gnum(st[1]); |
376 | #ifndef lint |
b1248f16 |
377 | value = (double)(U_L(value) | U_L(str_gnum(st[2]))); |
a687059c |
378 | #endif |
379 | goto donumset; |
380 | } |
381 | else |
382 | do_vop(optype,str,st[1],st[2]); |
383 | break; |
384 | /* use register in evaluating str_true() */ |
378cc40b |
385 | case O_AND: |
a687059c |
386 | if (str_true(st[1])) { |
378cc40b |
387 | anum = 2; |
388 | optype = O_ITEM2; |
389 | argflags = arg[anum].arg_flags; |
a687059c |
390 | if (gimme == G_ARRAY) |
391 | argflags |= AF_ARYOK; |
392 | argtype = arg[anum].arg_type & A_MASK; |
378cc40b |
393 | argptr = arg[anum].arg_ptr; |
394 | maxarg = anum = 1; |
a687059c |
395 | sp = arglast[0]; |
396 | st -= sp; |
378cc40b |
397 | goto re_eval; |
398 | } |
399 | else { |
400 | if (assigning) { |
a687059c |
401 | str_sset(str, st[1]); |
378cc40b |
402 | STABSET(str); |
403 | } |
404 | else |
a687059c |
405 | str = st[1]; |
378cc40b |
406 | break; |
407 | } |
408 | case O_OR: |
a687059c |
409 | if (str_true(st[1])) { |
378cc40b |
410 | if (assigning) { |
a687059c |
411 | str_sset(str, st[1]); |
378cc40b |
412 | STABSET(str); |
413 | } |
414 | else |
a687059c |
415 | str = st[1]; |
378cc40b |
416 | break; |
417 | } |
418 | else { |
419 | anum = 2; |
420 | optype = O_ITEM2; |
421 | argflags = arg[anum].arg_flags; |
a687059c |
422 | if (gimme == G_ARRAY) |
423 | argflags |= AF_ARYOK; |
424 | argtype = arg[anum].arg_type & A_MASK; |
378cc40b |
425 | argptr = arg[anum].arg_ptr; |
426 | maxarg = anum = 1; |
a687059c |
427 | sp = arglast[0]; |
428 | st -= sp; |
378cc40b |
429 | goto re_eval; |
430 | } |
431 | case O_COND_EXPR: |
a687059c |
432 | anum = (str_true(st[1]) ? 2 : 3); |
378cc40b |
433 | optype = (anum == 2 ? O_ITEM2 : O_ITEM3); |
434 | argflags = arg[anum].arg_flags; |
a687059c |
435 | if (gimme == G_ARRAY) |
436 | argflags |= AF_ARYOK; |
437 | argtype = arg[anum].arg_type & A_MASK; |
378cc40b |
438 | argptr = arg[anum].arg_ptr; |
439 | maxarg = anum = 1; |
a687059c |
440 | sp = arglast[0]; |
441 | st -= sp; |
378cc40b |
442 | goto re_eval; |
443 | case O_COMMA: |
a687059c |
444 | if (gimme == G_ARRAY) |
445 | goto array_return; |
446 | str = st[2]; |
378cc40b |
447 | break; |
448 | case O_NEGATE: |
a687059c |
449 | value = -str_gnum(st[1]); |
378cc40b |
450 | goto donumset; |
451 | case O_NOT: |
a687059c |
452 | value = (double) !str_true(st[1]); |
378cc40b |
453 | goto donumset; |
454 | case O_COMPLEMENT: |
154e51a4 |
455 | if (!sawvec || st[1]->str_nok) { |
a687059c |
456 | #ifndef lint |
154e51a4 |
457 | value = (double) ~U_L(str_gnum(st[1])); |
a687059c |
458 | #endif |
154e51a4 |
459 | goto donumset; |
460 | } |
461 | else { |
462 | STR_SSET(str,st[1]); |
463 | tmps = str_get(str); |
464 | for (anum = str->str_cur; anum; anum--) |
465 | *tmps = ~*tmps; |
466 | } |
467 | break; |
378cc40b |
468 | case O_SELECT: |
a687059c |
469 | tmps = stab_name(defoutstab); |
470 | if (maxarg > 0) { |
471 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
472 | defoutstab = arg[1].arg_ptr.arg_stab; |
473 | else |
474 | defoutstab = stabent(str_get(st[1]),TRUE); |
475 | if (!stab_io(defoutstab)) |
476 | stab_io(defoutstab) = stio_new(); |
477 | curoutstab = defoutstab; |
478 | } |
479 | str_set(str, tmps); |
378cc40b |
480 | STABSET(str); |
481 | break; |
482 | case O_WRITE: |
483 | if (maxarg == 0) |
484 | stab = defoutstab; |
a687059c |
485 | else if ((arg[1].arg_type & A_MASK) == A_WORD) { |
486 | if (!(stab = arg[1].arg_ptr.arg_stab)) |
487 | stab = defoutstab; |
488 | } |
378cc40b |
489 | else |
a687059c |
490 | stab = stabent(str_get(st[1]),TRUE); |
491 | if (!stab_io(stab)) { |
378cc40b |
492 | str_set(str, No); |
493 | STABSET(str); |
494 | break; |
495 | } |
496 | curoutstab = stab; |
a687059c |
497 | fp = stab_io(stab)->ofp; |
378cc40b |
498 | debarg = arg; |
a687059c |
499 | if (stab_io(stab)->fmt_stab) |
500 | form = stab_form(stab_io(stab)->fmt_stab); |
378cc40b |
501 | else |
a687059c |
502 | form = stab_form(stab); |
378cc40b |
503 | if (!form || !fp) { |
a687059c |
504 | if (dowarn) { |
505 | if (form) |
506 | warn("No format for filehandle"); |
507 | else { |
508 | if (stab_io(stab)->ifp) |
509 | warn("Filehandle only opened for input"); |
510 | else |
511 | warn("Write on closed filehandle"); |
512 | } |
513 | } |
378cc40b |
514 | str_set(str, No); |
515 | STABSET(str); |
516 | break; |
517 | } |
a687059c |
518 | format(&outrec,form,sp); |
519 | do_write(&outrec,stab_io(stab),sp); |
520 | if (stab_io(stab)->flags & IOF_FLUSH) |
521 | (void)fflush(fp); |
378cc40b |
522 | str_set(str, Yes); |
523 | STABSET(str); |
524 | break; |
a687059c |
525 | case O_DBMOPEN: |
526 | #ifdef SOME_DBM |
154e51a4 |
527 | stab = arg[1].arg_ptr.arg_stab; |
528 | if (st[3]->str_nok || st[3]->str_pok) |
529 | anum = (int)str_gnum(st[3]); |
a687059c |
530 | else |
154e51a4 |
531 | anum = -1; |
a687059c |
532 | value = (double)hdbmopen(stab_hash(stab),str_get(st[2]),anum); |
533 | goto donumset; |
534 | #else |
535 | fatal("No dbm or ndbm on this machine"); |
536 | #endif |
537 | case O_DBMCLOSE: |
538 | #ifdef SOME_DBM |
154e51a4 |
539 | stab = arg[1].arg_ptr.arg_stab; |
a687059c |
540 | hdbmclose(stab_hash(stab)); |
541 | goto say_yes; |
542 | #else |
543 | fatal("No dbm or ndbm on this machine"); |
544 | #endif |
378cc40b |
545 | case O_OPEN: |
a687059c |
546 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
547 | stab = arg[1].arg_ptr.arg_stab; |
548 | else |
a687059c |
549 | stab = stabent(str_get(st[1]),TRUE); |
afd9f252 |
550 | tmps = str_get(st[2]); |
551 | if (do_open(stab,tmps,st[2]->str_cur)) { |
378cc40b |
552 | value = (double)forkprocess; |
a687059c |
553 | stab_io(stab)->lines = 0; |
378cc40b |
554 | goto donumset; |
555 | } |
afd9f252 |
556 | else if (forkprocess == 0) /* we are a new child */ |
557 | goto say_zero; |
378cc40b |
558 | else |
a687059c |
559 | goto say_undef; |
154e51a4 |
560 | /* break; */ |
378cc40b |
561 | case O_TRANS: |
562 | value = (double) do_trans(str,arg); |
563 | str = arg->arg_ptr.arg_str; |
564 | goto donumset; |
565 | case O_NTRANS: |
566 | str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No); |
567 | str = arg->arg_ptr.arg_str; |
568 | break; |
569 | case O_CLOSE: |
a687059c |
570 | if (maxarg == 0) |
571 | stab = defoutstab; |
572 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
573 | stab = arg[1].arg_ptr.arg_stab; |
574 | else |
a687059c |
575 | stab = stabent(str_get(st[1]),TRUE); |
378cc40b |
576 | str_set(str, do_close(stab,TRUE) ? Yes : No ); |
577 | STABSET(str); |
578 | break; |
579 | case O_EACH: |
a687059c |
580 | sp = do_each(str,stab_hash(arg[1].arg_ptr.arg_stab), |
581 | gimme,arglast); |
582 | goto array_return; |
378cc40b |
583 | case O_VALUES: |
584 | case O_KEYS: |
a687059c |
585 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
586 | gimme,arglast); |
587 | goto array_return; |
588 | case O_LARRAY: |
589 | str->str_nok = str->str_pok = 0; |
590 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
591 | str->str_state = SS_ARY; |
592 | break; |
378cc40b |
593 | case O_ARRAY: |
a687059c |
594 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
595 | maxarg = ary->ary_fill + 1; |
596 | if (gimme == G_ARRAY) { /* array wanted */ |
597 | sp = arglast[0]; |
598 | st -= sp; |
599 | if (maxarg > 0 && sp + maxarg > stack->ary_max) { |
600 | astore(stack,sp + maxarg, Nullstr); |
601 | st = stack->ary_array; |
378cc40b |
602 | } |
154e51a4 |
603 | st += sp; |
604 | Copy(ary->ary_array, &st[1], maxarg, STR*); |
a687059c |
605 | sp += maxarg; |
606 | goto array_return; |
378cc40b |
607 | } |
afd9f252 |
608 | else { |
609 | value = (double)maxarg; |
610 | goto donumset; |
611 | } |
a687059c |
612 | case O_AELEM: |
0d3e774c |
613 | anum = ((int)str_gnum(st[2])) - arybase; |
614 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,FALSE); |
378cc40b |
615 | if (!str) |
a687059c |
616 | goto say_undef; |
378cc40b |
617 | break; |
618 | case O_DELETE: |
a687059c |
619 | tmpstab = arg[1].arg_ptr.arg_stab; |
620 | tmps = str_get(st[2]); |
621 | str = hdelete(stab_hash(tmpstab),tmps,st[2]->str_cur); |
622 | if (tmpstab == envstab) |
623 | setenv(tmps,Nullch); |
378cc40b |
624 | if (!str) |
a687059c |
625 | goto say_undef; |
626 | break; |
627 | case O_LHASH: |
628 | str->str_nok = str->str_pok = 0; |
629 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
630 | str->str_state = SS_HASH; |
378cc40b |
631 | break; |
632 | case O_HASH: |
a687059c |
633 | if (gimme == G_ARRAY) { /* array wanted */ |
634 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
635 | gimme,arglast); |
636 | goto array_return; |
637 | } |
638 | else { |
639 | tmpstab = arg[1].arg_ptr.arg_stab; |
154e51a4 |
640 | if (!stab_hash(tmpstab)->tbl_fill) |
641 | goto say_zero; |
a687059c |
642 | sprintf(buf,"%d/%d",stab_hash(tmpstab)->tbl_fill, |
643 | stab_hash(tmpstab)->tbl_max+1); |
644 | str_set(str,buf); |
645 | } |
646 | break; |
647 | case O_HELEM: |
648 | tmpstab = arg[1].arg_ptr.arg_stab; |
649 | tmps = str_get(st[2]); |
650 | str = hfetch(stab_hash(tmpstab),tmps,st[2]->str_cur,FALSE); |
378cc40b |
651 | if (!str) |
a687059c |
652 | goto say_undef; |
378cc40b |
653 | break; |
a687059c |
654 | case O_LAELEM: |
655 | anum = ((int)str_gnum(st[2])) - arybase; |
656 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,TRUE); |
657 | if (!str) |
658 | fatal("Assignment to non-creatable value, subscript %d",anum); |
378cc40b |
659 | break; |
a687059c |
660 | case O_LHELEM: |
661 | tmpstab = arg[1].arg_ptr.arg_stab; |
662 | tmps = str_get(st[2]); |
663 | anum = st[2]->str_cur; |
664 | str = hfetch(stab_hash(tmpstab),tmps,anum,TRUE); |
665 | if (!str) |
666 | fatal("Assignment to non-creatable value, subscript \"%s\"",tmps); |
667 | if (tmpstab == envstab) /* heavy wizardry going on here */ |
668 | str_magic(str, tmpstab, 'E', tmps, anum); /* str is now magic */ |
378cc40b |
669 | /* he threw the brick up into the air */ |
a687059c |
670 | else if (tmpstab == sigstab) |
671 | str_magic(str, tmpstab, 'S', tmps, anum); |
672 | #ifdef SOME_DBM |
673 | else if (stab_hash(tmpstab)->tbl_dbm) |
674 | str_magic(str, tmpstab, 'D', tmps, anum); |
675 | #endif |
378cc40b |
676 | break; |
79a0689e |
677 | case O_LSLICE: |
678 | anum = 2; |
679 | argtype = FALSE; |
680 | goto do_slice_already; |
a687059c |
681 | case O_ASLICE: |
79a0689e |
682 | anum = 1; |
a687059c |
683 | argtype = FALSE; |
684 | goto do_slice_already; |
685 | case O_HSLICE: |
79a0689e |
686 | anum = 0; |
a687059c |
687 | argtype = FALSE; |
688 | goto do_slice_already; |
689 | case O_LASLICE: |
79a0689e |
690 | anum = 1; |
a687059c |
691 | argtype = TRUE; |
692 | goto do_slice_already; |
693 | case O_LHSLICE: |
79a0689e |
694 | anum = 0; |
a687059c |
695 | argtype = TRUE; |
696 | do_slice_already: |
79a0689e |
697 | sp = do_slice(arg[1].arg_ptr.arg_stab,str,anum,argtype, |
a687059c |
698 | gimme,arglast); |
699 | goto array_return; |
79a0689e |
700 | case O_SPLICE: |
154e51a4 |
701 | sp = do_splice(stab_array(arg[1].arg_ptr.arg_stab),gimme,arglast); |
79a0689e |
702 | goto array_return; |
378cc40b |
703 | case O_PUSH: |
a687059c |
704 | if (arglast[2] - arglast[1] != 1) |
705 | str = do_push(stab_array(arg[1].arg_ptr.arg_stab),arglast); |
378cc40b |
706 | else { |
a687059c |
707 | str = Str_new(51,0); /* must copy the STR */ |
708 | str_sset(str,st[2]); |
709 | (void)apush(stab_array(arg[1].arg_ptr.arg_stab),str); |
378cc40b |
710 | } |
711 | break; |
712 | case O_POP: |
a687059c |
713 | str = apop(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
714 | goto staticalization; |
378cc40b |
715 | case O_SHIFT: |
a687059c |
716 | str = ashift(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
717 | staticalization: |
718 | if (!str) |
719 | goto say_undef; |
720 | if (ary->ary_flags & ARF_REAL) |
721 | (void)str_2static(str); |
378cc40b |
722 | break; |
a687059c |
723 | case O_UNPACK: |
724 | sp = do_unpack(str,gimme,arglast); |
725 | goto array_return; |
378cc40b |
726 | case O_SPLIT: |
a687059c |
727 | value = str_gnum(st[3]); |
728 | sp = do_split(str, arg[2].arg_ptr.arg_spat, (int)value, |
729 | gimme,arglast); |
730 | goto array_return; |
378cc40b |
731 | case O_LENGTH: |
a687059c |
732 | if (maxarg < 1) |
733 | value = (double)str_len(stab_val(defstab)); |
734 | else |
735 | value = (double)str_len(st[1]); |
378cc40b |
736 | goto donumset; |
737 | case O_SPRINTF: |
a687059c |
738 | do_sprintf(str, sp-arglast[0], st+1); |
378cc40b |
739 | break; |
740 | case O_SUBSTR: |
a687059c |
741 | anum = ((int)str_gnum(st[2])) - arybase; /* anum=where to start*/ |
742 | tmps = str_get(st[1]); /* force conversion to string */ |
743 | if (argtype = (str == st[1])) |
744 | str = arg->arg_ptr.arg_str; |
745 | if (anum < 0) |
746 | anum += st[1]->str_cur + arybase; |
747 | if (anum < 0 || anum > st[1]->str_cur) |
748 | str_nset(str,"",0); |
749 | else { |
750 | optype = (int)str_gnum(st[3]); |
751 | if (optype < 0) |
752 | optype = 0; |
753 | tmps += anum; |
754 | anum = st[1]->str_cur - anum; /* anum=how many bytes left*/ |
755 | if (anum > optype) |
756 | anum = optype; |
378cc40b |
757 | str_nset(str, tmps, anum); |
a687059c |
758 | if (argtype) { /* it's an lvalue! */ |
759 | lstr = (struct lstring*)str; |
760 | str->str_magic = st[1]; |
761 | st[1]->str_rare = 's'; |
762 | lstr->lstr_offset = tmps - str_get(st[1]); |
763 | lstr->lstr_len = anum; |
764 | } |
765 | } |
766 | break; |
767 | case O_PACK: |
768 | (void)do_pack(str,arglast); |
378cc40b |
769 | break; |
a687059c |
770 | case O_GREP: |
771 | sp = do_grep(arg,str,gimme,arglast); |
772 | goto array_return; |
378cc40b |
773 | case O_JOIN: |
a687059c |
774 | do_join(str,arglast); |
378cc40b |
775 | break; |
776 | case O_SLT: |
a687059c |
777 | tmps = str_get(st[1]); |
778 | value = (double) (str_cmp(st[1],st[2]) < 0); |
378cc40b |
779 | goto donumset; |
780 | case O_SGT: |
a687059c |
781 | tmps = str_get(st[1]); |
782 | value = (double) (str_cmp(st[1],st[2]) > 0); |
378cc40b |
783 | goto donumset; |
784 | case O_SLE: |
a687059c |
785 | tmps = str_get(st[1]); |
786 | value = (double) (str_cmp(st[1],st[2]) <= 0); |
378cc40b |
787 | goto donumset; |
788 | case O_SGE: |
a687059c |
789 | tmps = str_get(st[1]); |
790 | value = (double) (str_cmp(st[1],st[2]) >= 0); |
378cc40b |
791 | goto donumset; |
792 | case O_SEQ: |
a687059c |
793 | tmps = str_get(st[1]); |
794 | value = (double) str_eq(st[1],st[2]); |
378cc40b |
795 | goto donumset; |
796 | case O_SNE: |
a687059c |
797 | tmps = str_get(st[1]); |
798 | value = (double) !str_eq(st[1],st[2]); |
378cc40b |
799 | goto donumset; |
800 | case O_SUBR: |
a687059c |
801 | sp = do_subr(arg,gimme,arglast); |
802 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
803 | goto array_return; |
804 | case O_DBSUBR: |
805 | sp = do_dbsubr(arg,gimme,arglast); |
806 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
807 | goto array_return; |
378cc40b |
808 | case O_SORT: |
a687059c |
809 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
810 | stab = arg[1].arg_ptr.arg_stab; |
811 | else |
812 | stab = stabent(str_get(st[1]),TRUE); |
813 | if (!stab) |
378cc40b |
814 | stab = defoutstab; |
a687059c |
815 | sp = do_sort(str,stab, |
816 | gimme,arglast); |
817 | goto array_return; |
818 | case O_REVERSE: |
819 | sp = do_reverse(str, |
820 | gimme,arglast); |
821 | goto array_return; |
822 | case O_WARN: |
823 | if (arglast[2] - arglast[1] != 1) { |
824 | do_join(str,arglast); |
825 | tmps = str_get(st[1]); |
826 | } |
378cc40b |
827 | else { |
a687059c |
828 | str = st[2]; |
829 | tmps = str_get(st[2]); |
378cc40b |
830 | } |
a687059c |
831 | if (!tmps || !*tmps) |
832 | tmps = "Warning: something's wrong"; |
833 | warn("%s",tmps); |
834 | goto say_yes; |
835 | case O_DIE: |
836 | if (arglast[2] - arglast[1] != 1) { |
837 | do_join(str,arglast); |
838 | tmps = str_get(st[1]); |
378cc40b |
839 | } |
a687059c |
840 | else { |
841 | str = st[2]; |
842 | tmps = str_get(st[2]); |
843 | } |
844 | if (!tmps || !*tmps) |
154e51a4 |
845 | tmps = "Died"; |
a687059c |
846 | fatal("%s",tmps); |
847 | goto say_zero; |
378cc40b |
848 | case O_PRTF: |
849 | case O_PRINT: |
a687059c |
850 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
851 | stab = arg[1].arg_ptr.arg_stab; |
852 | else |
853 | stab = stabent(str_get(st[1]),TRUE); |
854 | if (!stab) |
378cc40b |
855 | stab = defoutstab; |
a687059c |
856 | if (!stab_io(stab)) { |
857 | if (dowarn) |
858 | warn("Filehandle never opened"); |
859 | goto say_zero; |
860 | } |
861 | if (!(fp = stab_io(stab)->ofp)) { |
862 | if (dowarn) { |
863 | if (stab_io(stab)->ifp) |
864 | warn("Filehandle opened only for input"); |
865 | else |
866 | warn("Print on closed filehandle"); |
867 | } |
868 | goto say_zero; |
378cc40b |
869 | } |
378cc40b |
870 | else { |
a687059c |
871 | if (optype == O_PRTF || arglast[2] - arglast[1] != 1) |
872 | value = (double)do_aprint(arg,fp,arglast); |
378cc40b |
873 | else { |
a687059c |
874 | value = (double)do_print(st[2],fp); |
875 | if (orslen && optype == O_PRINT) |
876 | if (fwrite(ors, 1, orslen, fp) == 0) |
877 | goto say_zero; |
378cc40b |
878 | } |
a687059c |
879 | if (stab_io(stab)->flags & IOF_FLUSH) |
880 | if (fflush(fp) == EOF) |
881 | goto say_zero; |
378cc40b |
882 | } |
883 | goto donumset; |
884 | case O_CHDIR: |
a687059c |
885 | if (maxarg < 1) |
afd9f252 |
886 | tmps = Nullch; |
a687059c |
887 | else |
888 | tmps = str_get(st[1]); |
889 | if (!tmps || !*tmps) { |
890 | tmpstr = hfetch(stab_hash(envstab),"HOME",4,FALSE); |
891 | if (tmpstr) |
892 | tmps = str_get(tmpstr); |
893 | } |
894 | if (!tmps || !*tmps) { |
895 | tmpstr = hfetch(stab_hash(envstab),"LOGDIR",6,FALSE); |
896 | if (tmpstr) |
897 | tmps = str_get(tmpstr); |
898 | } |
899 | #ifdef TAINT |
900 | taintproper("Insecure dependency in chdir"); |
901 | #endif |
378cc40b |
902 | value = (double)(chdir(tmps) >= 0); |
903 | goto donumset; |
378cc40b |
904 | case O_EXIT: |
a687059c |
905 | if (maxarg < 1) |
906 | anum = 0; |
907 | else |
908 | anum = (int)str_gnum(st[1]); |
909 | exit(anum); |
910 | goto say_zero; |
378cc40b |
911 | case O_RESET: |
a687059c |
912 | if (maxarg < 1) |
913 | tmps = ""; |
914 | else |
915 | tmps = str_get(st[1]); |
916 | str_reset(tmps,arg[2].arg_ptr.arg_hash); |
378cc40b |
917 | value = 1.0; |
918 | goto donumset; |
919 | case O_LIST: |
a687059c |
920 | if (gimme == G_ARRAY) |
921 | goto array_return; |
378cc40b |
922 | if (maxarg > 0) |
a687059c |
923 | str = st[sp - arglast[0]]; /* unwanted list, return last item */ |
378cc40b |
924 | else |
a687059c |
925 | str = &str_undef; |
378cc40b |
926 | break; |
927 | case O_EOF: |
928 | if (maxarg <= 0) |
929 | stab = last_in_stab; |
a687059c |
930 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
931 | stab = arg[1].arg_ptr.arg_stab; |
932 | else |
a687059c |
933 | stab = stabent(str_get(st[1]),TRUE); |
378cc40b |
934 | str_set(str, do_eof(stab) ? Yes : No); |
935 | STABSET(str); |
936 | break; |
a687059c |
937 | case O_GETC: |
378cc40b |
938 | if (maxarg <= 0) |
a687059c |
939 | stab = stdinstab; |
940 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
378cc40b |
941 | stab = arg[1].arg_ptr.arg_stab; |
942 | else |
a687059c |
943 | stab = stabent(str_get(st[1]),TRUE); |
944 | if (do_eof(stab)) /* make sure we have fp with something */ |
945 | str_set(str, No); |
946 | else { |
947 | #ifdef TAINT |
948 | tainted = 1; |
949 | #endif |
950 | str_set(str," "); |
951 | *str->str_ptr = getc(stab_io(stab)->ifp); /* should never be EOF */ |
952 | } |
953 | STABSET(str); |
954 | break; |
955 | case O_TELL: |
956 | if (maxarg <= 0) |
957 | stab = last_in_stab; |
958 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
959 | stab = arg[1].arg_ptr.arg_stab; |
960 | else |
961 | stab = stabent(str_get(st[1]),TRUE); |
962 | #ifndef lint |
963 | value = (double)do_tell(stab); |
964 | #else |
965 | (void)do_tell(stab); |
966 | #endif |
967 | goto donumset; |
968 | case O_RECV: |
969 | case O_READ: |
970 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
971 | stab = arg[1].arg_ptr.arg_stab; |
972 | else |
973 | stab = stabent(str_get(st[1]),TRUE); |
974 | tmps = str_get(st[2]); |
975 | anum = (int)str_gnum(st[3]); |
976 | STR_GROW(st[2], anum+1), (tmps = str_get(st[2])); /* sneaky */ |
977 | errno = 0; |
978 | if (!stab_io(stab) || !stab_io(stab)->ifp) |
979 | goto say_zero; |
980 | #ifdef SOCKET |
981 | else if (optype == O_RECV) { |
982 | argtype = sizeof buf; |
983 | optype = (int)str_gnum(st[4]); |
984 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, optype, |
985 | buf, &argtype); |
986 | if (anum >= 0) { |
987 | st[2]->str_cur = anum; |
988 | st[2]->str_ptr[anum] = '\0'; |
989 | str_nset(str,buf,argtype); |
990 | } |
991 | else |
992 | str_sset(str,&str_undef); |
993 | break; |
994 | } |
995 | else if (stab_io(stab)->type == 's') { |
996 | argtype = sizeof buf; |
997 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, 0, |
998 | buf, &argtype); |
999 | } |
1000 | #else |
1001 | else if (optype == O_RECV) |
1002 | goto badsock; |
1003 | #endif |
1004 | else |
1005 | anum = fread(tmps, 1, anum, stab_io(stab)->ifp); |
1006 | if (anum < 0) |
1007 | goto say_undef; |
1008 | st[2]->str_cur = anum; |
1009 | st[2]->str_ptr[anum] = '\0'; |
1010 | value = (double)anum; |
1011 | goto donumset; |
1012 | case O_SEND: |
1013 | #ifdef SOCKET |
1014 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1015 | stab = arg[1].arg_ptr.arg_stab; |
1016 | else |
1017 | stab = stabent(str_get(st[1]),TRUE); |
1018 | tmps = str_get(st[2]); |
1019 | anum = (int)str_gnum(st[3]); |
1020 | optype = sp - arglast[0]; |
1021 | errno = 0; |
1022 | if (optype > 4) |
1023 | warn("Too many args on send"); |
663a0e37 |
1024 | stio = stab_io(stab); |
1025 | if (!stio || !stio->ifp) { |
1026 | anum = -1; |
1027 | if (dowarn) |
1028 | warn("Send on closed socket"); |
1029 | } |
1030 | else if (optype >= 4) { |
a687059c |
1031 | tmps2 = str_get(st[4]); |
1032 | anum = sendto(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, |
1033 | anum, tmps2, st[4]->str_cur); |
1034 | } |
1035 | else |
1036 | anum = send(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, anum); |
1037 | if (anum < 0) |
1038 | goto say_undef; |
1039 | value = (double)anum; |
1040 | goto donumset; |
1041 | #else |
1042 | goto badsock; |
1043 | #endif |
1044 | case O_SEEK: |
1045 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1046 | stab = arg[1].arg_ptr.arg_stab; |
378cc40b |
1047 | else |
a687059c |
1048 | stab = stabent(str_get(st[1]),TRUE); |
1049 | value = str_gnum(st[2]); |
378cc40b |
1050 | str_set(str, do_seek(stab, |
a687059c |
1051 | (long)value, (int)str_gnum(st[3]) ) ? Yes : No); |
378cc40b |
1052 | STABSET(str); |
1053 | break; |
a687059c |
1054 | case O_RETURN: |
afd9f252 |
1055 | tmps = "_SUB_"; /* just fake up a "last _SUB_" */ |
a687059c |
1056 | optype = O_LAST; |
afd9f252 |
1057 | if (wantarray == G_ARRAY) { |
a687059c |
1058 | lastretstr = Nullstr; |
1059 | lastspbase = arglast[1]; |
1060 | lastsize = arglast[2] - arglast[1]; |
1061 | } |
1062 | else |
1063 | lastretstr = str_static(st[arglast[2] - arglast[0]]); |
1064 | goto dopop; |
378cc40b |
1065 | case O_REDO: |
1066 | case O_NEXT: |
1067 | case O_LAST: |
1068 | if (maxarg > 0) { |
a687059c |
1069 | tmps = str_get(arg[1].arg_ptr.arg_str); |
1070 | dopop: |
378cc40b |
1071 | while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label || |
1072 | strNE(tmps,loop_stack[loop_ptr].loop_label) )) { |
1073 | #ifdef DEBUGGING |
1074 | if (debug & 4) { |
1075 | deb("(Skipping label #%d %s)\n",loop_ptr, |
1076 | loop_stack[loop_ptr].loop_label); |
1077 | } |
1078 | #endif |
1079 | loop_ptr--; |
1080 | } |
1081 | #ifdef DEBUGGING |
1082 | if (debug & 4) { |
1083 | deb("(Found label #%d %s)\n",loop_ptr, |
1084 | loop_stack[loop_ptr].loop_label); |
1085 | } |
1086 | #endif |
1087 | } |
154e51a4 |
1088 | if (loop_ptr < 0) { |
1089 | if (tmps && strEQ(tmps, "_SUB_")) |
1090 | fatal("Can't return outside a subroutine"); |
378cc40b |
1091 | fatal("Bad label: %s", maxarg > 0 ? tmps : "<null>"); |
154e51a4 |
1092 | } |
a687059c |
1093 | if (!lastretstr && optype == O_LAST && lastsize) { |
1094 | st -= arglast[0]; |
1095 | st += lastspbase + 1; |
1096 | optype = loop_stack[loop_ptr].loop_sp - lastspbase; /* negative */ |
1097 | if (optype) { |
1098 | for (anum = lastsize; anum > 0; anum--,st++) |
1099 | st[optype] = str_static(st[0]); |
1100 | } |
1101 | longjmp(loop_stack[loop_ptr].loop_env, O_LAST); |
1102 | } |
378cc40b |
1103 | longjmp(loop_stack[loop_ptr].loop_env, optype); |
a687059c |
1104 | case O_DUMP: |
378cc40b |
1105 | case O_GOTO:/* shudder */ |
a687059c |
1106 | goto_targ = str_get(arg[1].arg_ptr.arg_str); |
1107 | if (!*goto_targ) |
1108 | goto_targ = Nullch; /* just restart from top */ |
1109 | if (optype == O_DUMP) { |
1110 | do_undump = 1; |
1111 | abort(); |
1112 | } |
378cc40b |
1113 | longjmp(top_env, 1); |
1114 | case O_INDEX: |
a687059c |
1115 | tmps = str_get(st[1]); |
1116 | #ifndef lint |
1117 | if (!(tmps2 = fbminstr((unsigned char*)tmps, |
1118 | (unsigned char*)tmps + st[1]->str_cur, st[2]))) |
1119 | #else |
1120 | if (tmps2 = fbminstr(Null(unsigned char*),Null(unsigned char*),Nullstr)) |
1121 | #endif |
1122 | value = (double)(-1 + arybase); |
1123 | else |
1124 | value = (double)(tmps2 - tmps + arybase); |
1125 | goto donumset; |
1126 | case O_RINDEX: |
1127 | tmps = str_get(st[1]); |
1128 | tmps2 = str_get(st[2]); |
1129 | #ifndef lint |
1130 | if (!(tmps2 = rninstr(tmps, tmps + st[1]->str_cur, |
1131 | tmps2, tmps2 + st[2]->str_cur))) |
1132 | #else |
1133 | if (tmps2 = rninstr(Nullch,Nullch,Nullch,Nullch)) |
1134 | #endif |
378cc40b |
1135 | value = (double)(-1 + arybase); |
1136 | else |
1137 | value = (double)(tmps2 - tmps + arybase); |
1138 | goto donumset; |
1139 | case O_TIME: |
a687059c |
1140 | #ifndef lint |
378cc40b |
1141 | value = (double) time(Null(long*)); |
a687059c |
1142 | #endif |
378cc40b |
1143 | goto donumset; |
1144 | case O_TMS: |
a687059c |
1145 | sp = do_tms(str,gimme,arglast); |
1146 | goto array_return; |
378cc40b |
1147 | case O_LOCALTIME: |
a687059c |
1148 | if (maxarg < 1) |
1149 | (void)time(&when); |
1150 | else |
1151 | when = (long)str_gnum(st[1]); |
1152 | sp = do_time(str,localtime(&when), |
1153 | gimme,arglast); |
1154 | goto array_return; |
378cc40b |
1155 | case O_GMTIME: |
a687059c |
1156 | if (maxarg < 1) |
1157 | (void)time(&when); |
1158 | else |
1159 | when = (long)str_gnum(st[1]); |
1160 | sp = do_time(str,gmtime(&when), |
1161 | gimme,arglast); |
1162 | goto array_return; |
154e51a4 |
1163 | case O_TRUNCATE: |
1164 | sp = do_truncate(str,arg, |
1165 | gimme,arglast); |
1166 | goto array_return; |
a687059c |
1167 | case O_LSTAT: |
378cc40b |
1168 | case O_STAT: |
a687059c |
1169 | sp = do_stat(str,arg, |
1170 | gimme,arglast); |
1171 | goto array_return; |
378cc40b |
1172 | case O_CRYPT: |
1173 | #ifdef CRYPT |
a687059c |
1174 | tmps = str_get(st[1]); |
1175 | #ifdef FCRYPT |
1176 | str_set(str,fcrypt(tmps,str_get(st[2]))); |
1177 | #else |
1178 | str_set(str,crypt(tmps,str_get(st[2]))); |
1179 | #endif |
378cc40b |
1180 | #else |
1181 | fatal( |
1182 | "The crypt() function is unimplemented due to excessive paranoia."); |
1183 | #endif |
1184 | break; |
a687059c |
1185 | case O_ATAN2: |
1186 | value = str_gnum(st[1]); |
1187 | value = atan2(value,str_gnum(st[2])); |
1188 | goto donumset; |
1189 | case O_SIN: |
1190 | if (maxarg < 1) |
1191 | value = str_gnum(stab_val(defstab)); |
1192 | else |
1193 | value = str_gnum(st[1]); |
1194 | value = sin(value); |
1195 | goto donumset; |
1196 | case O_COS: |
1197 | if (maxarg < 1) |
1198 | value = str_gnum(stab_val(defstab)); |
1199 | else |
1200 | value = str_gnum(st[1]); |
1201 | value = cos(value); |
1202 | goto donumset; |
1203 | case O_RAND: |
1204 | if (maxarg < 1) |
1205 | value = 1.0; |
1206 | else |
1207 | value = str_gnum(st[1]); |
1208 | if (value == 0.0) |
1209 | value = 1.0; |
1210 | #if RANDBITS == 31 |
1211 | value = rand() * value / 2147483648.0; |
1212 | #else |
1213 | #if RANDBITS == 16 |
1214 | value = rand() * value / 65536.0; |
1215 | #else |
1216 | #if RANDBITS == 15 |
1217 | value = rand() * value / 32768.0; |
1218 | #else |
1219 | value = rand() * value / (double)(((unsigned long)1) << RANDBITS); |
1220 | #endif |
1221 | #endif |
1222 | #endif |
1223 | goto donumset; |
1224 | case O_SRAND: |
1225 | if (maxarg < 1) { |
1226 | (void)time(&when); |
1227 | anum = when; |
1228 | } |
1229 | else |
1230 | anum = (int)str_gnum(st[1]); |
1231 | (void)srand(anum); |
1232 | goto say_yes; |
378cc40b |
1233 | case O_EXP: |
a687059c |
1234 | if (maxarg < 1) |
1235 | value = str_gnum(stab_val(defstab)); |
1236 | else |
1237 | value = str_gnum(st[1]); |
1238 | value = exp(value); |
378cc40b |
1239 | goto donumset; |
1240 | case O_LOG: |
a687059c |
1241 | if (maxarg < 1) |
1242 | value = str_gnum(stab_val(defstab)); |
1243 | else |
1244 | value = str_gnum(st[1]); |
1245 | value = log(value); |
378cc40b |
1246 | goto donumset; |
1247 | case O_SQRT: |
a687059c |
1248 | if (maxarg < 1) |
1249 | value = str_gnum(stab_val(defstab)); |
1250 | else |
1251 | value = str_gnum(st[1]); |
1252 | value = sqrt(value); |
378cc40b |
1253 | goto donumset; |
1254 | case O_INT: |
a687059c |
1255 | if (maxarg < 1) |
1256 | value = str_gnum(stab_val(defstab)); |
1257 | else |
1258 | value = str_gnum(st[1]); |
378cc40b |
1259 | if (value >= 0.0) |
a687059c |
1260 | (void)modf(value,&value); |
378cc40b |
1261 | else { |
a687059c |
1262 | (void)modf(-value,&value); |
378cc40b |
1263 | value = -value; |
1264 | } |
1265 | goto donumset; |
1266 | case O_ORD: |
a687059c |
1267 | if (maxarg < 1) |
1268 | tmps = str_get(stab_val(defstab)); |
1269 | else |
1270 | tmps = str_get(st[1]); |
1271 | #ifndef I286 |
663a0e37 |
1272 | value = (double) (*tmps & 255); |
a687059c |
1273 | #else |
1274 | anum = (int) *tmps; |
663a0e37 |
1275 | value = (double) (anum & 255); |
a687059c |
1276 | #endif |
378cc40b |
1277 | goto donumset; |
1278 | case O_SLEEP: |
a687059c |
1279 | if (maxarg < 1) |
1280 | tmps = Nullch; |
1281 | else |
1282 | tmps = str_get(st[1]); |
1283 | (void)time(&when); |
378cc40b |
1284 | if (!tmps || !*tmps) |
1285 | sleep((32767<<16)+32767); |
1286 | else |
a687059c |
1287 | sleep((unsigned int)atoi(tmps)); |
1288 | #ifndef lint |
378cc40b |
1289 | value = (double)when; |
a687059c |
1290 | (void)time(&when); |
378cc40b |
1291 | value = ((double)when) - value; |
a687059c |
1292 | #endif |
378cc40b |
1293 | goto donumset; |
a687059c |
1294 | case O_RANGE: |
1295 | sp = do_range(gimme,arglast); |
1296 | goto array_return; |
1297 | case O_F_OR_R: |
1298 | if (gimme == G_ARRAY) { /* it's a range */ |
1299 | /* can we optimize to constant array? */ |
1300 | if ((arg[1].arg_type & A_MASK) == A_SINGLE && |
1301 | (arg[2].arg_type & A_MASK) == A_SINGLE) { |
1302 | st[2] = arg[2].arg_ptr.arg_str; |
1303 | sp = do_range(gimme,arglast); |
1304 | st = stack->ary_array; |
1305 | maxarg = sp - arglast[0]; |
1306 | str_free(arg[1].arg_ptr.arg_str); |
1307 | str_free(arg[2].arg_ptr.arg_str); |
1308 | arg->arg_type = O_ARRAY; |
1309 | arg[1].arg_type = A_STAB|A_DONT; |
1310 | arg->arg_len = 1; |
1311 | stab = arg[1].arg_ptr.arg_stab = aadd(genstab()); |
1312 | ary = stab_array(stab); |
1313 | afill(ary,maxarg - 1); |
1314 | st += arglast[0]+1; |
1315 | while (maxarg-- > 0) |
1316 | ary->ary_array[maxarg] = str_smake(st[maxarg]); |
1317 | goto array_return; |
1318 | } |
1319 | arg->arg_type = optype = O_RANGE; |
1320 | maxarg = arg->arg_len = 2; |
1321 | anum = 2; |
1322 | arg[anum].arg_flags &= ~AF_ARYOK; |
1323 | argflags = arg[anum].arg_flags; |
1324 | argtype = arg[anum].arg_type & A_MASK; |
1325 | arg[anum].arg_type = argtype; |
1326 | argptr = arg[anum].arg_ptr; |
1327 | sp = arglast[0]; |
1328 | st -= sp; |
1329 | sp++; |
1330 | goto re_eval; |
1331 | } |
1332 | arg->arg_type = O_FLIP; |
1333 | /* FALL THROUGH */ |
378cc40b |
1334 | case O_FLIP: |
a687059c |
1335 | if ((arg[1].arg_type & A_MASK) == A_SINGLE ? |
1336 | last_in_stab && (int)str_gnum(st[1]) == stab_io(last_in_stab)->lines |
1337 | : |
1338 | str_true(st[1]) ) { |
378cc40b |
1339 | str_numset(str,0.0); |
1340 | anum = 2; |
1341 | arg->arg_type = optype = O_FLOP; |
a687059c |
1342 | arg[2].arg_type &= ~A_DONT; |
1343 | arg[1].arg_type |= A_DONT; |
378cc40b |
1344 | argflags = arg[2].arg_flags; |
a687059c |
1345 | argtype = arg[2].arg_type & A_MASK; |
378cc40b |
1346 | argptr = arg[2].arg_ptr; |
a687059c |
1347 | sp = arglast[0]; |
154e51a4 |
1348 | st -= sp++; |
378cc40b |
1349 | goto re_eval; |
1350 | } |
1351 | str_set(str,""); |
1352 | break; |
1353 | case O_FLOP: |
1354 | str_inc(str); |
a687059c |
1355 | if ((arg[2].arg_type & A_MASK) == A_SINGLE ? |
1356 | last_in_stab && (int)str_gnum(st[2]) == stab_io(last_in_stab)->lines |
1357 | : |
1358 | str_true(st[2]) ) { |
378cc40b |
1359 | arg->arg_type = O_FLIP; |
a687059c |
1360 | arg[1].arg_type &= ~A_DONT; |
1361 | arg[2].arg_type |= A_DONT; |
378cc40b |
1362 | str_cat(str,"E0"); |
1363 | } |
1364 | break; |
1365 | case O_FORK: |
b1248f16 |
1366 | #ifdef FORK |
a687059c |
1367 | anum = fork(); |
1368 | if (!anum && (tmpstab = stabent("$",allstabs))) |
1369 | str_numset(STAB_STR(tmpstab),(double)getpid()); |
1370 | value = (double)anum; |
378cc40b |
1371 | goto donumset; |
b1248f16 |
1372 | #else |
1373 | fatal("Unsupported function fork"); |
1374 | break; |
1375 | #endif |
378cc40b |
1376 | case O_WAIT: |
b1248f16 |
1377 | #ifdef WAIT |
a687059c |
1378 | #ifndef lint |
a687059c |
1379 | anum = wait(&argflags); |
1380 | if (anum > 0) |
1381 | pidgone(anum,argflags); |
1382 | value = (double)anum; |
a687059c |
1383 | #endif |
378cc40b |
1384 | statusvalue = (unsigned short)argflags; |
1385 | goto donumset; |
b1248f16 |
1386 | #else |
1387 | fatal("Unsupported function wait"); |
1388 | break; |
1389 | #endif |
378cc40b |
1390 | case O_SYSTEM: |
b1248f16 |
1391 | #ifdef FORK |
a687059c |
1392 | #ifdef TAINT |
1393 | if (arglast[2] - arglast[1] == 1) { |
1394 | taintenv(); |
1395 | tainted |= st[2]->str_tainted; |
1396 | taintproper("Insecure dependency in system"); |
1397 | } |
1398 | #endif |
378cc40b |
1399 | while ((anum = vfork()) == -1) { |
1400 | if (errno != EAGAIN) { |
1401 | value = -1.0; |
1402 | goto donumset; |
1403 | } |
1404 | sleep(5); |
1405 | } |
1406 | if (anum > 0) { |
a687059c |
1407 | #ifndef lint |
378cc40b |
1408 | ihand = signal(SIGINT, SIG_IGN); |
1409 | qhand = signal(SIGQUIT, SIG_IGN); |
a687059c |
1410 | while ((argtype = wait(&argflags)) != anum && argtype >= 0) |
1411 | pidgone(argtype,argflags); |
1412 | #else |
1413 | ihand = qhand = 0; |
1414 | #endif |
1415 | (void)signal(SIGINT, ihand); |
1416 | (void)signal(SIGQUIT, qhand); |
378cc40b |
1417 | statusvalue = (unsigned short)argflags; |
1418 | if (argtype == -1) |
1419 | value = -1.0; |
1420 | else { |
1421 | value = (double)((unsigned int)argflags & 0xffff); |
1422 | } |
154e51a4 |
1423 | do_execfree(); /* free any memory child malloced on vfork */ |
378cc40b |
1424 | goto donumset; |
1425 | } |
a687059c |
1426 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
1427 | value = (double)do_aexec(st[1],arglast); |
1428 | else if (arglast[2] - arglast[1] != 1) |
1429 | value = (double)do_aexec(Nullstr,arglast); |
378cc40b |
1430 | else { |
a687059c |
1431 | value = (double)do_exec(str_get(str_static(st[2]))); |
378cc40b |
1432 | } |
1433 | _exit(-1); |
b1248f16 |
1434 | #else /* ! FORK */ |
1435 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
1436 | value = (double)do_aspawn(st[1],arglast); |
1437 | else if (arglast[2] - arglast[1] != 1) |
1438 | value = (double)do_aspawn(Nullstr,arglast); |
1439 | else { |
1440 | value = (double)do_spawn(str_get(str_static(st[2]))); |
1441 | } |
1442 | goto donumset; |
1443 | #endif /* FORK */ |
378cc40b |
1444 | case O_EXEC: |
a687059c |
1445 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
1446 | value = (double)do_aexec(st[1],arglast); |
1447 | else if (arglast[2] - arglast[1] != 1) |
1448 | value = (double)do_aexec(Nullstr,arglast); |
378cc40b |
1449 | else { |
a687059c |
1450 | value = (double)do_exec(str_get(str_static(st[2]))); |
378cc40b |
1451 | } |
1452 | goto donumset; |
1453 | case O_HEX: |
1454 | argtype = 4; |
1455 | goto snarfnum; |
1456 | |
1457 | case O_OCT: |
1458 | argtype = 3; |
1459 | |
1460 | snarfnum: |
1461 | anum = 0; |
a687059c |
1462 | if (maxarg < 1) |
1463 | tmps = str_get(stab_val(defstab)); |
1464 | else |
1465 | tmps = str_get(st[1]); |
378cc40b |
1466 | for (;;) { |
1467 | switch (*tmps) { |
1468 | default: |
1469 | goto out; |
1470 | case '8': case '9': |
1471 | if (argtype != 4) |
1472 | goto out; |
1473 | /* FALL THROUGH */ |
1474 | case '0': case '1': case '2': case '3': case '4': |
1475 | case '5': case '6': case '7': |
1476 | anum <<= argtype; |
1477 | anum += *tmps++ & 15; |
1478 | break; |
1479 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
1480 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
1481 | if (argtype != 4) |
1482 | goto out; |
1483 | anum <<= 4; |
1484 | anum += (*tmps++ & 7) + 9; |
1485 | break; |
1486 | case 'x': |
1487 | argtype = 4; |
1488 | tmps++; |
1489 | break; |
1490 | } |
1491 | } |
1492 | out: |
1493 | value = (double)anum; |
1494 | goto donumset; |
378cc40b |
1495 | case O_CHOWN: |
b1248f16 |
1496 | #ifdef CHOWN |
1497 | value = (double)apply(optype,arglast); |
1498 | goto donumset; |
1499 | #else |
1500 | fatal("Unsupported function chown"); |
1501 | break; |
1502 | #endif |
378cc40b |
1503 | case O_KILL: |
b1248f16 |
1504 | #ifdef KILL |
1505 | value = (double)apply(optype,arglast); |
1506 | goto donumset; |
1507 | #else |
1508 | fatal("Unsupported function kill"); |
1509 | break; |
1510 | #endif |
378cc40b |
1511 | case O_UNLINK: |
b1248f16 |
1512 | case O_CHMOD: |
378cc40b |
1513 | case O_UTIME: |
a687059c |
1514 | value = (double)apply(optype,arglast); |
378cc40b |
1515 | goto donumset; |
1516 | case O_UMASK: |
b1248f16 |
1517 | #ifdef UMASK |
a687059c |
1518 | if (maxarg < 1) { |
1519 | anum = umask(0); |
1520 | (void)umask(anum); |
1521 | } |
1522 | else |
1523 | anum = umask((int)str_gnum(st[1])); |
1524 | value = (double)anum; |
1525 | #ifdef TAINT |
1526 | taintproper("Insecure dependency in umask"); |
1527 | #endif |
378cc40b |
1528 | goto donumset; |
b1248f16 |
1529 | #else |
1530 | fatal("Unsupported function umask"); |
1531 | break; |
1532 | #endif |
378cc40b |
1533 | case O_RENAME: |
a687059c |
1534 | tmps = str_get(st[1]); |
1535 | tmps2 = str_get(st[2]); |
1536 | #ifdef TAINT |
1537 | taintproper("Insecure dependency in rename"); |
1538 | #endif |
378cc40b |
1539 | #ifdef RENAME |
a687059c |
1540 | value = (double)(rename(tmps,tmps2) >= 0); |
378cc40b |
1541 | #else |
154e51a4 |
1542 | if (same_dirent(tmps2, tmps) /* can always rename to same name */ |
1543 | anum = 1; |
1544 | else { |
1545 | if (euid || stat(tmps2,&statbuf) < 0 || |
1546 | (statbuf.st_mode & S_IFMT) != S_IFDIR ) |
1547 | (void)UNLINK(tmps2); |
1548 | if (!(anum = link(tmps,tmps2))) |
1549 | anum = UNLINK(tmps); |
1550 | } |
378cc40b |
1551 | value = (double)(anum >= 0); |
1552 | #endif |
1553 | goto donumset; |
1554 | case O_LINK: |
b1248f16 |
1555 | #ifdef LINK |
a687059c |
1556 | tmps = str_get(st[1]); |
1557 | tmps2 = str_get(st[2]); |
1558 | #ifdef TAINT |
1559 | taintproper("Insecure dependency in link"); |
1560 | #endif |
1561 | value = (double)(link(tmps,tmps2) >= 0); |
1562 | goto donumset; |
b1248f16 |
1563 | #else |
1564 | fatal("Unsupported function link"); |
1565 | break; |
1566 | #endif |
a687059c |
1567 | case O_MKDIR: |
1568 | tmps = str_get(st[1]); |
1569 | anum = (int)str_gnum(st[2]); |
1570 | #ifdef TAINT |
1571 | taintproper("Insecure dependency in mkdir"); |
1572 | #endif |
1573 | #ifdef MKDIR |
1574 | value = (double)(mkdir(tmps,anum) >= 0); |
bf38876a |
1575 | goto donumset; |
a687059c |
1576 | #else |
bf38876a |
1577 | (void)strcpy(buf,"mkdir "); |
1578 | #endif |
1579 | #if !defined(MKDIR) || !defined(RMDIR) |
a687059c |
1580 | one_liner: |
bf38876a |
1581 | for (tmps2 = buf+6; *tmps; ) { |
1582 | *tmps2++ = '\\'; |
1583 | *tmps2++ = *tmps++; |
1584 | } |
1585 | (void)strcpy(tmps2," 2>&1"); |
a687059c |
1586 | rsfp = mypopen(buf,"r"); |
1587 | if (rsfp) { |
1588 | *buf = '\0'; |
1589 | tmps2 = fgets(buf,sizeof buf,rsfp); |
1590 | (void)mypclose(rsfp); |
1591 | if (tmps2 != Nullch) { |
bf38876a |
1592 | for (errno = 1; errno < sys_nerr; errno++) { |
a687059c |
1593 | if (instr(buf,sys_errlist[errno])) /* you don't see this */ |
1594 | goto say_zero; |
1595 | } |
1596 | errno = 0; |
bf38876a |
1597 | #ifndef EACCES |
1598 | #define EACCES EPERM |
1599 | #endif |
1600 | if (instr(buf,"cannot make")) |
1601 | errno = EEXIST; |
1602 | else if (instr(buf,"non-exist")) |
1603 | errno = ENOENT; |
afd9f252 |
1604 | else if (instr(buf,"does not exist")) |
1605 | errno = ENOENT; |
bf38876a |
1606 | else if (instr(buf,"not empty")) |
1607 | errno = EBUSY; |
1608 | else if (instr(buf,"cannot access")) |
1609 | errno = EACCES; |
1610 | else |
1611 | errno = EPERM; |
a687059c |
1612 | goto say_zero; |
1613 | } |
bf38876a |
1614 | else { /* some mkdirs return no failure indication */ |
1615 | tmps = str_get(st[1]); |
1616 | anum = (stat(tmps,&statbuf) >= 0); |
1617 | if (optype == O_RMDIR) |
1618 | anum = !anum; |
1619 | if (anum) |
1620 | errno = 0; |
1621 | else |
1622 | errno = EACCES; /* a guess */ |
1623 | value = (double)anum; |
1624 | } |
1625 | goto donumset; |
a687059c |
1626 | } |
1627 | else |
1628 | goto say_zero; |
1629 | #endif |
a687059c |
1630 | case O_RMDIR: |
1631 | if (maxarg < 1) |
1632 | tmps = str_get(stab_val(defstab)); |
1633 | else |
1634 | tmps = str_get(st[1]); |
1635 | #ifdef TAINT |
1636 | taintproper("Insecure dependency in rmdir"); |
1637 | #endif |
1638 | #ifdef RMDIR |
1639 | value = (double)(rmdir(tmps) >= 0); |
1640 | goto donumset; |
1641 | #else |
bf38876a |
1642 | (void)strcpy(buf,"rmdir "); |
a687059c |
1643 | goto one_liner; /* see above in MKDIR */ |
1644 | #endif |
1645 | case O_GETPPID: |
b1248f16 |
1646 | #ifdef GETPPID |
a687059c |
1647 | value = (double)getppid(); |
1648 | goto donumset; |
b1248f16 |
1649 | #else |
1650 | fatal("Unsupported function getppid"); |
1651 | break; |
1652 | #endif |
a687059c |
1653 | case O_GETPGRP: |
1654 | #ifdef GETPGRP |
1655 | if (maxarg < 1) |
1656 | anum = 0; |
1657 | else |
1658 | anum = (int)str_gnum(st[1]); |
1659 | value = (double)getpgrp(anum); |
1660 | goto donumset; |
1661 | #else |
1662 | fatal("The getpgrp() function is unimplemented on this machine"); |
1663 | break; |
1664 | #endif |
1665 | case O_SETPGRP: |
1666 | #ifdef SETPGRP |
1667 | argtype = (int)str_gnum(st[1]); |
1668 | anum = (int)str_gnum(st[2]); |
1669 | #ifdef TAINT |
1670 | taintproper("Insecure dependency in setpgrp"); |
1671 | #endif |
1672 | value = (double)(setpgrp(argtype,anum) >= 0); |
1673 | goto donumset; |
1674 | #else |
1675 | fatal("The setpgrp() function is unimplemented on this machine"); |
1676 | break; |
1677 | #endif |
1678 | case O_GETPRIORITY: |
1679 | #ifdef GETPRIORITY |
1680 | argtype = (int)str_gnum(st[1]); |
1681 | anum = (int)str_gnum(st[2]); |
1682 | value = (double)getpriority(argtype,anum); |
1683 | goto donumset; |
1684 | #else |
1685 | fatal("The getpriority() function is unimplemented on this machine"); |
1686 | break; |
1687 | #endif |
1688 | case O_SETPRIORITY: |
1689 | #ifdef SETPRIORITY |
1690 | argtype = (int)str_gnum(st[1]); |
1691 | anum = (int)str_gnum(st[2]); |
1692 | optype = (int)str_gnum(st[3]); |
1693 | #ifdef TAINT |
1694 | taintproper("Insecure dependency in setpriority"); |
1695 | #endif |
1696 | value = (double)(setpriority(argtype,anum,optype) >= 0); |
378cc40b |
1697 | goto donumset; |
a687059c |
1698 | #else |
1699 | fatal("The setpriority() function is unimplemented on this machine"); |
1700 | break; |
1701 | #endif |
1702 | case O_CHROOT: |
b1248f16 |
1703 | #ifdef CHROOT |
a687059c |
1704 | if (maxarg < 1) |
1705 | tmps = str_get(stab_val(defstab)); |
1706 | else |
1707 | tmps = str_get(st[1]); |
1708 | #ifdef TAINT |
1709 | taintproper("Insecure dependency in chroot"); |
1710 | #endif |
1711 | value = (double)(chroot(tmps) >= 0); |
1712 | goto donumset; |
b1248f16 |
1713 | #else |
1714 | fatal("Unsupported function chroot"); |
1715 | break; |
1716 | #endif |
a687059c |
1717 | case O_FCNTL: |
1718 | case O_IOCTL: |
1719 | if (maxarg <= 0) |
1720 | stab = last_in_stab; |
1721 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
1722 | stab = arg[1].arg_ptr.arg_stab; |
1723 | else |
1724 | stab = stabent(str_get(st[1]),TRUE); |
b1248f16 |
1725 | argtype = U_I(str_gnum(st[2])); |
a687059c |
1726 | #ifdef TAINT |
1727 | taintproper("Insecure dependency in ioctl"); |
1728 | #endif |
1729 | anum = do_ctl(optype,stab,argtype,st[3]); |
1730 | if (anum == -1) |
1731 | goto say_undef; |
b1248f16 |
1732 | if (anum != 0) { |
1733 | value = (double)anum; |
a687059c |
1734 | goto donumset; |
b1248f16 |
1735 | } |
a687059c |
1736 | str_set(str,"0 but true"); |
1737 | STABSET(str); |
1738 | break; |
1739 | case O_FLOCK: |
1740 | #ifdef FLOCK |
1741 | if (maxarg <= 0) |
1742 | stab = last_in_stab; |
1743 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
1744 | stab = arg[1].arg_ptr.arg_stab; |
1745 | else |
1746 | stab = stabent(str_get(st[1]),TRUE); |
1747 | if (stab && stab_io(stab)) |
1748 | fp = stab_io(stab)->ifp; |
1749 | else |
1750 | fp = Nullfp; |
1751 | if (fp) { |
1752 | argtype = (int)str_gnum(st[2]); |
1753 | value = (double)(flock(fileno(fp),argtype) >= 0); |
1754 | } |
1755 | else |
1756 | value = 0; |
1757 | goto donumset; |
1758 | #else |
1759 | fatal("The flock() function is unimplemented on this machine"); |
1760 | break; |
1761 | #endif |
378cc40b |
1762 | case O_UNSHIFT: |
a687059c |
1763 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
1764 | if (arglast[2] - arglast[1] != 1) |
1765 | do_unshift(ary,arglast); |
378cc40b |
1766 | else { |
a687059c |
1767 | str = Str_new(52,0); /* must copy the STR */ |
1768 | str_sset(str,st[2]); |
378cc40b |
1769 | aunshift(ary,1); |
a687059c |
1770 | (void)astore(ary,0,str); |
378cc40b |
1771 | } |
1772 | value = (double)(ary->ary_fill + 1); |
1773 | break; |
154e51a4 |
1774 | |
1775 | case O_REQUIRE: |
378cc40b |
1776 | case O_DOFILE: |
1777 | case O_EVAL: |
a687059c |
1778 | if (maxarg < 1) |
1779 | tmpstr = stab_val(defstab); |
1780 | else |
1781 | tmpstr = |
1782 | (arg[1].arg_type & A_MASK) != A_NULL ? st[1] : stab_val(defstab); |
1783 | #ifdef TAINT |
1784 | tainted |= tmpstr->str_tainted; |
1785 | taintproper("Insecure dependency in eval"); |
1786 | #endif |
1787 | sp = do_eval(tmpstr, optype, arg[2].arg_ptr.arg_hash, |
1788 | gimme,arglast); |
1789 | goto array_return; |
378cc40b |
1790 | |
1791 | case O_FTRREAD: |
1792 | argtype = 0; |
1793 | anum = S_IREAD; |
1794 | goto check_perm; |
1795 | case O_FTRWRITE: |
1796 | argtype = 0; |
1797 | anum = S_IWRITE; |
1798 | goto check_perm; |
1799 | case O_FTREXEC: |
1800 | argtype = 0; |
1801 | anum = S_IEXEC; |
1802 | goto check_perm; |
1803 | case O_FTEREAD: |
1804 | argtype = 1; |
1805 | anum = S_IREAD; |
1806 | goto check_perm; |
1807 | case O_FTEWRITE: |
1808 | argtype = 1; |
1809 | anum = S_IWRITE; |
1810 | goto check_perm; |
1811 | case O_FTEEXEC: |
1812 | argtype = 1; |
1813 | anum = S_IEXEC; |
1814 | check_perm: |
a687059c |
1815 | if (mystat(arg,st[1]) < 0) |
1816 | goto say_undef; |
1817 | if (cando(anum,argtype,&statcache)) |
1818 | goto say_yes; |
1819 | goto say_no; |
378cc40b |
1820 | |
1821 | case O_FTIS: |
a687059c |
1822 | if (mystat(arg,st[1]) < 0) |
1823 | goto say_undef; |
1824 | goto say_yes; |
378cc40b |
1825 | case O_FTEOWNED: |
1826 | case O_FTROWNED: |
a687059c |
1827 | if (mystat(arg,st[1]) < 0) |
1828 | goto say_undef; |
1829 | if (statcache.st_uid == (optype == O_FTEOWNED ? euid : uid) ) |
1830 | goto say_yes; |
1831 | goto say_no; |
378cc40b |
1832 | case O_FTZERO: |
a687059c |
1833 | if (mystat(arg,st[1]) < 0) |
1834 | goto say_undef; |
1835 | if (!statcache.st_size) |
1836 | goto say_yes; |
1837 | goto say_no; |
378cc40b |
1838 | case O_FTSIZE: |
a687059c |
1839 | if (mystat(arg,st[1]) < 0) |
1840 | goto say_undef; |
154e51a4 |
1841 | value = (double)statcache.st_size; |
1842 | goto donumset; |
378cc40b |
1843 | |
1844 | case O_FTSOCK: |
1845 | #ifdef S_IFSOCK |
1846 | anum = S_IFSOCK; |
1847 | goto check_file_type; |
1848 | #else |
a687059c |
1849 | goto say_no; |
378cc40b |
1850 | #endif |
1851 | case O_FTCHR: |
1852 | anum = S_IFCHR; |
1853 | goto check_file_type; |
1854 | case O_FTBLK: |
b1248f16 |
1855 | #ifdef S_IFBLK |
378cc40b |
1856 | anum = S_IFBLK; |
1857 | goto check_file_type; |
b1248f16 |
1858 | #else |
1859 | goto say_no; |
1860 | #endif |
378cc40b |
1861 | case O_FTFILE: |
1862 | anum = S_IFREG; |
1863 | goto check_file_type; |
1864 | case O_FTDIR: |
1865 | anum = S_IFDIR; |
1866 | check_file_type: |
a687059c |
1867 | if (mystat(arg,st[1]) < 0) |
1868 | goto say_undef; |
1869 | if ((statcache.st_mode & S_IFMT) == anum ) |
1870 | goto say_yes; |
1871 | goto say_no; |
378cc40b |
1872 | case O_FTPIPE: |
1873 | #ifdef S_IFIFO |
1874 | anum = S_IFIFO; |
1875 | goto check_file_type; |
1876 | #else |
a687059c |
1877 | goto say_no; |
378cc40b |
1878 | #endif |
1879 | case O_FTLINK: |
afd9f252 |
1880 | if (arg[1].arg_type & A_DONT) |
1881 | fatal("You must supply explicit filename with -l"); |
0d3e774c |
1882 | #ifdef LSTAT |
a687059c |
1883 | if (lstat(str_get(st[1]),&statcache) < 0) |
1884 | goto say_undef; |
1885 | if ((statcache.st_mode & S_IFMT) == S_IFLNK ) |
1886 | goto say_yes; |
378cc40b |
1887 | #endif |
a687059c |
1888 | goto say_no; |
378cc40b |
1889 | case O_SYMLINK: |
1890 | #ifdef SYMLINK |
a687059c |
1891 | tmps = str_get(st[1]); |
1892 | tmps2 = str_get(st[2]); |
1893 | #ifdef TAINT |
1894 | taintproper("Insecure dependency in symlink"); |
1895 | #endif |
1896 | value = (double)(symlink(tmps,tmps2) >= 0); |
378cc40b |
1897 | goto donumset; |
1898 | #else |
b1248f16 |
1899 | fatal("Unsupported function symlink"); |
378cc40b |
1900 | #endif |
a687059c |
1901 | case O_READLINK: |
1902 | #ifdef SYMLINK |
1903 | if (maxarg < 1) |
1904 | tmps = str_get(stab_val(defstab)); |
1905 | else |
1906 | tmps = str_get(st[1]); |
1907 | anum = readlink(tmps,buf,sizeof buf); |
1908 | if (anum < 0) |
1909 | goto say_undef; |
1910 | str_nset(str,buf,anum); |
1911 | break; |
1912 | #else |
b1248f16 |
1913 | fatal("Unsupported function readlink"); |
a687059c |
1914 | #endif |
378cc40b |
1915 | case O_FTSUID: |
b1248f16 |
1916 | #ifdef S_ISUID |
378cc40b |
1917 | anum = S_ISUID; |
1918 | goto check_xid; |
b1248f16 |
1919 | #else |
1920 | goto say_no; |
1921 | #endif |
378cc40b |
1922 | case O_FTSGID: |
b1248f16 |
1923 | #ifdef S_ISGID |
378cc40b |
1924 | anum = S_ISGID; |
1925 | goto check_xid; |
b1248f16 |
1926 | #else |
1927 | goto say_no; |
1928 | #endif |
378cc40b |
1929 | case O_FTSVTX: |
b1248f16 |
1930 | #ifdef S_ISVTX |
378cc40b |
1931 | anum = S_ISVTX; |
b1248f16 |
1932 | #else |
1933 | goto say_no; |
1934 | #endif |
378cc40b |
1935 | check_xid: |
a687059c |
1936 | if (mystat(arg,st[1]) < 0) |
1937 | goto say_undef; |
1938 | if (statcache.st_mode & anum) |
1939 | goto say_yes; |
1940 | goto say_no; |
378cc40b |
1941 | case O_FTTTY: |
a687059c |
1942 | if (arg[1].arg_type & A_DONT) { |
378cc40b |
1943 | stab = arg[1].arg_ptr.arg_stab; |
1944 | tmps = ""; |
1945 | } |
1946 | else |
a687059c |
1947 | stab = stabent(tmps = str_get(st[1]),FALSE); |
1948 | if (stab && stab_io(stab) && stab_io(stab)->ifp) |
1949 | anum = fileno(stab_io(stab)->ifp); |
378cc40b |
1950 | else if (isdigit(*tmps)) |
1951 | anum = atoi(tmps); |
1952 | else |
a687059c |
1953 | goto say_undef; |
378cc40b |
1954 | if (isatty(anum)) |
a687059c |
1955 | goto say_yes; |
1956 | goto say_no; |
378cc40b |
1957 | case O_FTTEXT: |
1958 | case O_FTBINARY: |
a687059c |
1959 | str = do_fttext(arg,st[1]); |
378cc40b |
1960 | break; |
a687059c |
1961 | #ifdef SOCKET |
1962 | case O_SOCKET: |
1963 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1964 | stab = arg[1].arg_ptr.arg_stab; |
1965 | else |
1966 | stab = stabent(str_get(st[1]),TRUE); |
1967 | #ifndef lint |
1968 | value = (double)do_socket(stab,arglast); |
1969 | #else |
1970 | (void)do_socket(stab,arglast); |
1971 | #endif |
1972 | goto donumset; |
1973 | case O_BIND: |
1974 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1975 | stab = arg[1].arg_ptr.arg_stab; |
1976 | else |
1977 | stab = stabent(str_get(st[1]),TRUE); |
1978 | #ifndef lint |
1979 | value = (double)do_bind(stab,arglast); |
1980 | #else |
1981 | (void)do_bind(stab,arglast); |
1982 | #endif |
1983 | goto donumset; |
1984 | case O_CONNECT: |
1985 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1986 | stab = arg[1].arg_ptr.arg_stab; |
1987 | else |
1988 | stab = stabent(str_get(st[1]),TRUE); |
1989 | #ifndef lint |
1990 | value = (double)do_connect(stab,arglast); |
1991 | #else |
1992 | (void)do_connect(stab,arglast); |
1993 | #endif |
1994 | goto donumset; |
1995 | case O_LISTEN: |
1996 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
1997 | stab = arg[1].arg_ptr.arg_stab; |
1998 | else |
1999 | stab = stabent(str_get(st[1]),TRUE); |
2000 | #ifndef lint |
2001 | value = (double)do_listen(stab,arglast); |
2002 | #else |
2003 | (void)do_listen(stab,arglast); |
2004 | #endif |
2005 | goto donumset; |
2006 | case O_ACCEPT: |
2007 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2008 | stab = arg[1].arg_ptr.arg_stab; |
2009 | else |
2010 | stab = stabent(str_get(st[1]),TRUE); |
2011 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
2012 | stab2 = arg[2].arg_ptr.arg_stab; |
2013 | else |
2014 | stab2 = stabent(str_get(st[2]),TRUE); |
2015 | do_accept(str,stab,stab2); |
2016 | STABSET(str); |
2017 | break; |
2018 | case O_GHBYNAME: |
2019 | if (maxarg < 1) |
2020 | goto say_undef; |
2021 | case O_GHBYADDR: |
2022 | case O_GHOSTENT: |
2023 | sp = do_ghent(optype, |
2024 | gimme,arglast); |
2025 | goto array_return; |
2026 | case O_GNBYNAME: |
2027 | if (maxarg < 1) |
2028 | goto say_undef; |
2029 | case O_GNBYADDR: |
2030 | case O_GNETENT: |
2031 | sp = do_gnent(optype, |
2032 | gimme,arglast); |
2033 | goto array_return; |
2034 | case O_GPBYNAME: |
2035 | if (maxarg < 1) |
2036 | goto say_undef; |
2037 | case O_GPBYNUMBER: |
2038 | case O_GPROTOENT: |
2039 | sp = do_gpent(optype, |
2040 | gimme,arglast); |
2041 | goto array_return; |
2042 | case O_GSBYNAME: |
2043 | if (maxarg < 1) |
2044 | goto say_undef; |
2045 | case O_GSBYPORT: |
2046 | case O_GSERVENT: |
2047 | sp = do_gsent(optype, |
2048 | gimme,arglast); |
2049 | goto array_return; |
2050 | case O_SHOSTENT: |
2051 | value = (double) sethostent((int)str_gnum(st[1])); |
2052 | goto donumset; |
2053 | case O_SNETENT: |
2054 | value = (double) setnetent((int)str_gnum(st[1])); |
2055 | goto donumset; |
2056 | case O_SPROTOENT: |
2057 | value = (double) setprotoent((int)str_gnum(st[1])); |
2058 | goto donumset; |
2059 | case O_SSERVENT: |
2060 | value = (double) setservent((int)str_gnum(st[1])); |
2061 | goto donumset; |
2062 | case O_EHOSTENT: |
2063 | value = (double) endhostent(); |
2064 | goto donumset; |
2065 | case O_ENETENT: |
2066 | value = (double) endnetent(); |
2067 | goto donumset; |
2068 | case O_EPROTOENT: |
2069 | value = (double) endprotoent(); |
2070 | goto donumset; |
2071 | case O_ESERVENT: |
2072 | value = (double) endservent(); |
2073 | goto donumset; |
154e51a4 |
2074 | case O_SOCKPAIR: |
a687059c |
2075 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2076 | stab = arg[1].arg_ptr.arg_stab; |
2077 | else |
2078 | stab = stabent(str_get(st[1]),TRUE); |
2079 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
2080 | stab2 = arg[2].arg_ptr.arg_stab; |
2081 | else |
2082 | stab2 = stabent(str_get(st[2]),TRUE); |
2083 | #ifndef lint |
2084 | value = (double)do_spair(stab,stab2,arglast); |
2085 | #else |
2086 | (void)do_spair(stab,stab2,arglast); |
2087 | #endif |
2088 | goto donumset; |
2089 | case O_SHUTDOWN: |
2090 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2091 | stab = arg[1].arg_ptr.arg_stab; |
2092 | else |
2093 | stab = stabent(str_get(st[1]),TRUE); |
2094 | #ifndef lint |
2095 | value = (double)do_shutdown(stab,arglast); |
2096 | #else |
2097 | (void)do_shutdown(stab,arglast); |
2098 | #endif |
2099 | goto donumset; |
2100 | case O_GSOCKOPT: |
2101 | case O_SSOCKOPT: |
2102 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2103 | stab = arg[1].arg_ptr.arg_stab; |
2104 | else |
2105 | stab = stabent(str_get(st[1]),TRUE); |
2106 | sp = do_sopt(optype,stab,arglast); |
2107 | goto array_return; |
2108 | case O_GETSOCKNAME: |
2109 | case O_GETPEERNAME: |
2110 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2111 | stab = arg[1].arg_ptr.arg_stab; |
2112 | else |
2113 | stab = stabent(str_get(st[1]),TRUE); |
2114 | sp = do_getsockname(optype,stab,arglast); |
2115 | goto array_return; |
2116 | |
2117 | #else /* SOCKET not defined */ |
2118 | case O_SOCKET: |
2119 | case O_BIND: |
2120 | case O_CONNECT: |
2121 | case O_LISTEN: |
2122 | case O_ACCEPT: |
154e51a4 |
2123 | case O_SOCKPAIR: |
a687059c |
2124 | case O_GHBYNAME: |
2125 | case O_GHBYADDR: |
2126 | case O_GHOSTENT: |
2127 | case O_GNBYNAME: |
2128 | case O_GNBYADDR: |
2129 | case O_GNETENT: |
2130 | case O_GPBYNAME: |
2131 | case O_GPBYNUMBER: |
2132 | case O_GPROTOENT: |
2133 | case O_GSBYNAME: |
2134 | case O_GSBYPORT: |
2135 | case O_GSERVENT: |
2136 | case O_SHOSTENT: |
2137 | case O_SNETENT: |
2138 | case O_SPROTOENT: |
2139 | case O_SSERVENT: |
2140 | case O_EHOSTENT: |
2141 | case O_ENETENT: |
2142 | case O_EPROTOENT: |
2143 | case O_ESERVENT: |
2144 | case O_SHUTDOWN: |
2145 | case O_GSOCKOPT: |
2146 | case O_SSOCKOPT: |
2147 | case O_GETSOCKNAME: |
2148 | case O_GETPEERNAME: |
2149 | badsock: |
2150 | fatal("Unsupported socket function"); |
2151 | #endif /* SOCKET */ |
154e51a4 |
2152 | case O_SSELECT: |
2153 | #ifdef SELECT |
2154 | sp = do_select(gimme,arglast); |
2155 | goto array_return; |
2156 | #else |
2157 | fatal("select not implemented"); |
2158 | #endif |
a687059c |
2159 | case O_FILENO: |
bf38876a |
2160 | if (maxarg < 1) |
2161 | goto say_undef; |
a687059c |
2162 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2163 | stab = arg[1].arg_ptr.arg_stab; |
2164 | else |
2165 | stab = stabent(str_get(st[1]),TRUE); |
2166 | if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp)) |
2167 | goto say_undef; |
2168 | value = fileno(fp); |
2169 | goto donumset; |
b1248f16 |
2170 | case O_BINMODE: |
2171 | if (maxarg < 1) |
2172 | goto say_undef; |
2173 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2174 | stab = arg[1].arg_ptr.arg_stab; |
2175 | else |
2176 | stab = stabent(str_get(st[1]),TRUE); |
2177 | if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp)) |
2178 | goto say_undef; |
2179 | #ifdef MSDOS |
2180 | str_set(str, (setmode(fileno(fp), O_BINARY) != -1) ? Yes : No); |
2181 | #else |
2182 | str_set(str, Yes); |
2183 | #endif |
2184 | STABSET(str); |
2185 | break; |
a687059c |
2186 | case O_VEC: |
2187 | sp = do_vec(str == st[1], arg->arg_ptr.arg_str, arglast); |
2188 | goto array_return; |
2189 | case O_GPWNAM: |
2190 | case O_GPWUID: |
2191 | case O_GPWENT: |
b1248f16 |
2192 | #ifdef PASSWD |
a687059c |
2193 | sp = do_gpwent(optype, |
2194 | gimme,arglast); |
2195 | goto array_return; |
2196 | case O_SPWENT: |
2197 | value = (double) setpwent(); |
2198 | goto donumset; |
2199 | case O_EPWENT: |
2200 | value = (double) endpwent(); |
2201 | goto donumset; |
b1248f16 |
2202 | #else |
2203 | case O_EPWENT: |
2204 | case O_SPWENT: |
2205 | fatal("Unsupported password function"); |
2206 | break; |
2207 | #endif |
a687059c |
2208 | case O_GGRNAM: |
2209 | case O_GGRGID: |
2210 | case O_GGRENT: |
b1248f16 |
2211 | #ifdef GROUP |
a687059c |
2212 | sp = do_ggrent(optype, |
2213 | gimme,arglast); |
2214 | goto array_return; |
2215 | case O_SGRENT: |
2216 | value = (double) setgrent(); |
2217 | goto donumset; |
2218 | case O_EGRENT: |
2219 | value = (double) endgrent(); |
2220 | goto donumset; |
b1248f16 |
2221 | #else |
2222 | case O_EGRENT: |
2223 | case O_SGRENT: |
2224 | fatal("Unsupported group function"); |
2225 | break; |
2226 | #endif |
a687059c |
2227 | case O_GETLOGIN: |
b1248f16 |
2228 | #ifdef GETLOGIN |
a687059c |
2229 | if (!(tmps = getlogin())) |
2230 | goto say_undef; |
2231 | str_set(str,tmps); |
b1248f16 |
2232 | #else |
2233 | fatal("Unsupported function getlogin"); |
2234 | #endif |
a687059c |
2235 | break; |
2236 | case O_OPENDIR: |
2237 | case O_READDIR: |
2238 | case O_TELLDIR: |
2239 | case O_SEEKDIR: |
2240 | case O_REWINDDIR: |
2241 | case O_CLOSEDIR: |
bf38876a |
2242 | if (maxarg < 1) |
2243 | goto say_undef; |
a687059c |
2244 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2245 | stab = arg[1].arg_ptr.arg_stab; |
2246 | else |
2247 | stab = stabent(str_get(st[1]),TRUE); |
2248 | sp = do_dirop(optype,stab,gimme,arglast); |
2249 | goto array_return; |
2250 | case O_SYSCALL: |
2251 | value = (double)do_syscall(arglast); |
2252 | goto donumset; |
afd9f252 |
2253 | case O_PIPE: |
b1248f16 |
2254 | #ifdef PIPE |
afd9f252 |
2255 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
2256 | stab = arg[1].arg_ptr.arg_stab; |
2257 | else |
2258 | stab = stabent(str_get(st[1]),TRUE); |
2259 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
2260 | stab2 = arg[2].arg_ptr.arg_stab; |
2261 | else |
2262 | stab2 = stabent(str_get(st[2]),TRUE); |
2263 | do_pipe(str,stab,stab2); |
2264 | STABSET(str); |
b1248f16 |
2265 | #else |
2266 | fatal("Unsupported function pipe"); |
2267 | #endif |
afd9f252 |
2268 | break; |
378cc40b |
2269 | } |
a687059c |
2270 | |
2271 | normal_return: |
2272 | st[1] = str; |
378cc40b |
2273 | #ifdef DEBUGGING |
2274 | if (debug) { |
2275 | dlevel--; |
2276 | if (debug & 8) |
2277 | deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str)); |
2278 | } |
2279 | #endif |
a687059c |
2280 | return arglast[0] + 1; |
378cc40b |
2281 | |
2282 | array_return: |
2283 | #ifdef DEBUGGING |
2284 | if (debug) { |
2285 | dlevel--; |
afd9f252 |
2286 | if (debug & 8) { |
2287 | anum = sp - arglast[0]; |
2288 | switch (anum) { |
2289 | case 0: |
2290 | deb("%s RETURNS ()\n",opname[optype]); |
2291 | break; |
2292 | case 1: |
2293 | deb("%s RETURNS (\"%s\")\n",opname[optype],str_get(st[1])); |
2294 | break; |
2295 | default: |
154e51a4 |
2296 | tmps = str_get(st[1]); |
2297 | deb("%s RETURNS %d ARGS (\"%s\",%s\"%s\")\n",opname[optype], |
2298 | anum,tmps,anum==2?"":"...,",str_get(st[anum])); |
afd9f252 |
2299 | break; |
2300 | } |
2301 | } |
378cc40b |
2302 | } |
2303 | #endif |
a687059c |
2304 | return sp; |
2305 | |
2306 | say_yes: |
2307 | str = &str_yes; |
2308 | goto normal_return; |
2309 | |
2310 | say_no: |
2311 | str = &str_no; |
2312 | goto normal_return; |
2313 | |
2314 | say_undef: |
2315 | str = &str_undef; |
2316 | goto normal_return; |
2317 | |
2318 | say_zero: |
2319 | value = 0.0; |
2320 | /* FALL THROUGH */ |
378cc40b |
2321 | |
2322 | donumset: |
2323 | str_numset(str,value); |
2324 | STABSET(str); |
a687059c |
2325 | st[1] = str; |
378cc40b |
2326 | #ifdef DEBUGGING |
2327 | if (debug) { |
2328 | dlevel--; |
2329 | if (debug & 8) |
2330 | deb("%s RETURNS \"%f\"\n",opname[optype],value); |
2331 | } |
2332 | #endif |
a687059c |
2333 | return arglast[0] + 1; |
378cc40b |
2334 | } |