Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
a0d0e21e |
8 | */ |
9 | |
10 | /* |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." |
79072805 |
13 | */ |
14 | |
15 | #include "EXTERN.h" |
16 | #include "perl.h" |
17 | |
e6d9441c |
18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> |
21 | #endif |
a0d0e21e |
22 | |
5cd24f17 |
23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 |
26 | # endif |
27 | #endif |
28 | |
c07a80fd |
29 | /* |
30 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
31 | */ |
32 | |
33 | struct magic_state { |
34 | SV* mgs_sv; |
35 | U32 mgs_flags; |
36 | }; |
37 | typedef struct magic_state MGS; |
38 | |
39 | static void restore_magic _((void *p)); |
40 | |
48e43a1c |
41 | static void |
42 | save_magic(mgs, sv) |
43 | MGS* mgs; |
c07a80fd |
44 | SV* sv; |
45 | { |
c07a80fd |
46 | assert(SvMAGICAL(sv)); |
47 | |
c07a80fd |
48 | mgs->mgs_sv = sv; |
49 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
50 | SAVEDESTRUCTOR(restore_magic, mgs); |
51 | |
52 | SvMAGICAL_off(sv); |
53 | SvREADONLY_off(sv); |
54 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
55 | } |
56 | |
57 | static void |
58 | restore_magic(p) |
59 | void* p; |
60 | { |
48e43a1c |
61 | MGS* mgs = (MGS*)p; |
c07a80fd |
62 | SV* sv = mgs->mgs_sv; |
63 | |
64 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
65 | { |
66 | if (mgs->mgs_flags) |
67 | SvFLAGS(sv) |= mgs->mgs_flags; |
68 | else |
69 | mg_magical(sv); |
70 | if (SvGMAGICAL(sv)) |
71 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
72 | } |
c07a80fd |
73 | } |
74 | |
8e07c86e |
75 | |
8990e307 |
76 | void |
77 | mg_magical(sv) |
78 | SV* sv; |
79 | { |
80 | MAGIC* mg; |
81 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
82 | MGVTBL* vtbl = mg->mg_virtual; |
83 | if (vtbl) { |
a0d0e21e |
84 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
85 | SvGMAGICAL_on(sv); |
86 | if (vtbl->svt_set) |
87 | SvSMAGICAL_on(sv); |
88 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
89 | SvRMAGICAL_on(sv); |
90 | } |
91 | } |
92 | } |
93 | |
79072805 |
94 | int |
95 | mg_get(sv) |
96 | SV* sv; |
97 | { |
48e43a1c |
98 | MGS mgs; |
79072805 |
99 | MAGIC* mg; |
c6496cc7 |
100 | MAGIC** mgp; |
760ac839 |
101 | int mgp_valid = 0; |
463ee0b2 |
102 | |
c07a80fd |
103 | ENTER; |
48e43a1c |
104 | save_magic(&mgs, sv); |
463ee0b2 |
105 | |
c6496cc7 |
106 | mgp = &SvMAGIC(sv); |
107 | while ((mg = *mgp) != 0) { |
79072805 |
108 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
109 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 |
110 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 |
111 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
112 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
113 | (mg->mg_flags & MGf_GSKIP)) |
114 | mgs.mgs_flags = 0; |
a0d0e21e |
115 | } |
c6496cc7 |
116 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
117 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
118 | mgp = &mg->mg_moremagic; |
760ac839 |
119 | mgp_valid = 1; |
120 | } |
121 | else |
122 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
123 | } |
463ee0b2 |
124 | |
c07a80fd |
125 | LEAVE; |
79072805 |
126 | return 0; |
127 | } |
128 | |
129 | int |
130 | mg_set(sv) |
131 | SV* sv; |
132 | { |
48e43a1c |
133 | MGS mgs; |
79072805 |
134 | MAGIC* mg; |
463ee0b2 |
135 | MAGIC* nextmg; |
136 | |
c07a80fd |
137 | ENTER; |
48e43a1c |
138 | save_magic(&mgs, sv); |
463ee0b2 |
139 | |
140 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
141 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
142 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
143 | if (mg->mg_flags & MGf_GSKIP) { |
144 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
48e43a1c |
145 | mgs.mgs_flags = 0; |
a0d0e21e |
146 | } |
79072805 |
147 | if (vtbl && vtbl->svt_set) |
148 | (*vtbl->svt_set)(sv, mg); |
149 | } |
463ee0b2 |
150 | |
c07a80fd |
151 | LEAVE; |
79072805 |
152 | return 0; |
153 | } |
154 | |
155 | U32 |
156 | mg_len(sv) |
157 | SV* sv; |
158 | { |
159 | MAGIC* mg; |
748a9306 |
160 | char *junk; |
463ee0b2 |
161 | STRLEN len; |
463ee0b2 |
162 | |
79072805 |
163 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
164 | MGVTBL* vtbl = mg->mg_virtual; |
85e6fe83 |
165 | if (vtbl && vtbl->svt_len) { |
48e43a1c |
166 | MGS mgs; |
167 | |
c07a80fd |
168 | ENTER; |
48e43a1c |
169 | save_magic(&mgs, sv); |
a0d0e21e |
170 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 |
171 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd |
172 | LEAVE; |
85e6fe83 |
173 | return len; |
174 | } |
175 | } |
176 | |
748a9306 |
177 | junk = SvPV(sv, len); |
463ee0b2 |
178 | return len; |
79072805 |
179 | } |
180 | |
181 | int |
182 | mg_clear(sv) |
183 | SV* sv; |
184 | { |
48e43a1c |
185 | MGS mgs; |
79072805 |
186 | MAGIC* mg; |
463ee0b2 |
187 | |
c07a80fd |
188 | ENTER; |
48e43a1c |
189 | save_magic(&mgs, sv); |
463ee0b2 |
190 | |
79072805 |
191 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
192 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
193 | /* omit GSKIP -- never set here */ |
194 | |
79072805 |
195 | if (vtbl && vtbl->svt_clear) |
196 | (*vtbl->svt_clear)(sv, mg); |
197 | } |
463ee0b2 |
198 | |
c07a80fd |
199 | LEAVE; |
79072805 |
200 | return 0; |
201 | } |
202 | |
93a17b20 |
203 | MAGIC* |
204 | mg_find(sv, type) |
205 | SV* sv; |
a0d0e21e |
206 | int type; |
93a17b20 |
207 | { |
208 | MAGIC* mg; |
93a17b20 |
209 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
210 | if (mg->mg_type == type) |
211 | return mg; |
212 | } |
213 | return 0; |
214 | } |
215 | |
79072805 |
216 | int |
463ee0b2 |
217 | mg_copy(sv, nsv, key, klen) |
79072805 |
218 | SV* sv; |
463ee0b2 |
219 | SV* nsv; |
220 | char *key; |
88e89b8a |
221 | I32 klen; |
79072805 |
222 | { |
463ee0b2 |
223 | int count = 0; |
79072805 |
224 | MAGIC* mg; |
463ee0b2 |
225 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
226 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
227 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
228 | count++; |
79072805 |
229 | } |
79072805 |
230 | } |
463ee0b2 |
231 | return count; |
79072805 |
232 | } |
233 | |
234 | int |
463ee0b2 |
235 | mg_free(sv) |
79072805 |
236 | SV* sv; |
237 | { |
238 | MAGIC* mg; |
239 | MAGIC* moremagic; |
240 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
241 | MGVTBL* vtbl = mg->mg_virtual; |
242 | moremagic = mg->mg_moremagic; |
243 | if (vtbl && vtbl->svt_free) |
244 | (*vtbl->svt_free)(sv, mg); |
93a17b20 |
245 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a |
246 | if (mg->mg_len >= 0) |
247 | Safefree(mg->mg_ptr); |
248 | else if (mg->mg_len == HEf_SVKEY) |
249 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
250 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
251 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
252 | Safefree(mg); |
253 | } |
254 | SvMAGIC(sv) = 0; |
255 | return 0; |
256 | } |
257 | |
258 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
259 | #include <signal.h> |
260 | #endif |
261 | |
93a17b20 |
262 | U32 |
263 | magic_len(sv, mg) |
264 | SV *sv; |
265 | MAGIC *mg; |
266 | { |
267 | register I32 paren; |
268 | register char *s; |
269 | register I32 i; |
bbce6d69 |
270 | register REGEXP *rx; |
748a9306 |
271 | char *t; |
93a17b20 |
272 | |
273 | switch (*mg->mg_ptr) { |
274 | case '1': case '2': case '3': case '4': |
275 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
276 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 |
277 | paren = atoi(mg->mg_ptr); |
278 | getparen: |
bbce6d69 |
279 | if (paren <= rx->nparens && |
280 | (s = rx->startp[paren]) && |
281 | (t = rx->endp[paren])) |
282 | { |
748a9306 |
283 | i = t - s; |
71be2cbc |
284 | if (i >= 0) |
93a17b20 |
285 | return i; |
93a17b20 |
286 | } |
93a17b20 |
287 | } |
748a9306 |
288 | return 0; |
93a17b20 |
289 | case '+': |
bbce6d69 |
290 | if (curpm && (rx = curpm->op_pmregexp)) { |
291 | paren = rx->lastparen; |
13f57bf8 |
292 | if (paren) |
293 | goto getparen; |
93a17b20 |
294 | } |
748a9306 |
295 | return 0; |
93a17b20 |
296 | case '`': |
bbce6d69 |
297 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
298 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
299 | i = rx->startp[0] - s; |
71be2cbc |
300 | if (i >= 0) |
93a17b20 |
301 | return i; |
93a17b20 |
302 | } |
93a17b20 |
303 | } |
748a9306 |
304 | return 0; |
93a17b20 |
305 | case '\'': |
bbce6d69 |
306 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
307 | if (rx->subend && (s = rx->endp[0])) { |
308 | i = rx->subend - s; |
309 | if (i >= 0) |
5cd24f17 |
310 | return i; |
93a17b20 |
311 | } |
93a17b20 |
312 | } |
748a9306 |
313 | return 0; |
93a17b20 |
314 | case ',': |
315 | return (STRLEN)ofslen; |
316 | case '\\': |
317 | return (STRLEN)orslen; |
318 | } |
319 | magic_get(sv,mg); |
320 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
321 | sv_2pv(sv, &na); |
93a17b20 |
322 | if (SvPOK(sv)) |
323 | return SvCUR(sv); |
324 | return 0; |
325 | } |
326 | |
79072805 |
327 | int |
328 | magic_get(sv, mg) |
329 | SV *sv; |
330 | MAGIC *mg; |
331 | { |
332 | register I32 paren; |
333 | register char *s; |
334 | register I32 i; |
bbce6d69 |
335 | register REGEXP *rx; |
748a9306 |
336 | char *t; |
79072805 |
337 | |
338 | switch (*mg->mg_ptr) { |
748a9306 |
339 | case '\001': /* ^A */ |
340 | sv_setsv(sv, bodytarget); |
341 | break; |
79072805 |
342 | case '\004': /* ^D */ |
188ea221 |
343 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 |
344 | break; |
28f23441 |
345 | case '\005': /* ^E */ |
346 | #ifdef VMS |
347 | { |
348 | # include <descrip.h> |
349 | # include <starlet.h> |
350 | char msg[255]; |
351 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
352 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
353 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
354 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
355 | else |
356 | sv_setpv(sv,""); |
357 | } |
358 | #else |
88e89b8a |
359 | #ifdef OS2 |
946ec16e |
360 | sv_setnv(sv, (double)Perl_rc); |
88e89b8a |
361 | sv_setpv(sv, os2error(Perl_rc)); |
362 | #else |
946ec16e |
363 | sv_setnv(sv, (double)errno); |
28f23441 |
364 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
365 | #endif |
88e89b8a |
366 | #endif |
946ec16e |
367 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
368 | break; |
79072805 |
369 | case '\006': /* ^F */ |
188ea221 |
370 | sv_setiv(sv, (IV)maxsysfd); |
79072805 |
371 | break; |
a0d0e21e |
372 | case '\010': /* ^H */ |
188ea221 |
373 | sv_setiv(sv, (IV)hints); |
a0d0e21e |
374 | break; |
79072805 |
375 | case '\t': /* ^I */ |
376 | if (inplace) |
377 | sv_setpv(sv, inplace); |
378 | else |
188ea221 |
379 | sv_setsv(sv, &sv_undef); |
79072805 |
380 | break; |
28f23441 |
381 | case '\017': /* ^O */ |
188ea221 |
382 | sv_setpv(sv, osname); |
28f23441 |
383 | break; |
79072805 |
384 | case '\020': /* ^P */ |
188ea221 |
385 | sv_setiv(sv, (IV)perldb); |
79072805 |
386 | break; |
387 | case '\024': /* ^T */ |
88e89b8a |
388 | #ifdef BIG_TIME |
188ea221 |
389 | sv_setnv(sv, basetime); |
88e89b8a |
390 | #else |
188ea221 |
391 | sv_setiv(sv, (IV)basetime); |
88e89b8a |
392 | #endif |
79072805 |
393 | break; |
394 | case '\027': /* ^W */ |
188ea221 |
395 | sv_setiv(sv, (IV)dowarn); |
79072805 |
396 | break; |
397 | case '1': case '2': case '3': case '4': |
398 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
399 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a |
400 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 |
401 | getparen: |
bbce6d69 |
402 | if (paren <= rx->nparens && |
403 | (s = rx->startp[paren]) && |
404 | (t = rx->endp[paren])) |
405 | { |
748a9306 |
406 | i = t - s; |
13f57bf8 |
407 | getrx: |
748a9306 |
408 | if (i >= 0) { |
13f57bf8 |
409 | bool was_tainted; |
410 | if (tainting) { |
411 | was_tainted = tainted; |
412 | tainted = FALSE; |
413 | } |
79072805 |
414 | sv_setpvn(sv,s,i); |
13f57bf8 |
415 | if (tainting) |
416 | tainted = was_tainted || rx->exec_tainted; |
748a9306 |
417 | break; |
418 | } |
79072805 |
419 | } |
79072805 |
420 | } |
748a9306 |
421 | sv_setsv(sv,&sv_undef); |
79072805 |
422 | break; |
423 | case '+': |
bbce6d69 |
424 | if (curpm && (rx = curpm->op_pmregexp)) { |
425 | paren = rx->lastparen; |
a0d0e21e |
426 | if (paren) |
427 | goto getparen; |
79072805 |
428 | } |
748a9306 |
429 | sv_setsv(sv,&sv_undef); |
79072805 |
430 | break; |
431 | case '`': |
bbce6d69 |
432 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
433 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
434 | i = rx->startp[0] - s; |
13f57bf8 |
435 | goto getrx; |
79072805 |
436 | } |
79072805 |
437 | } |
748a9306 |
438 | sv_setsv(sv,&sv_undef); |
79072805 |
439 | break; |
440 | case '\'': |
bbce6d69 |
441 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
442 | if (rx->subend && (s = rx->endp[0])) { |
443 | i = rx->subend - s; |
444 | goto getrx; |
79072805 |
445 | } |
79072805 |
446 | } |
748a9306 |
447 | sv_setsv(sv,&sv_undef); |
79072805 |
448 | break; |
449 | case '.': |
450 | #ifndef lint |
a0d0e21e |
451 | if (GvIO(last_in_gv)) { |
188ea221 |
452 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 |
453 | } |
454 | #endif |
455 | break; |
456 | case '?': |
809a5acc |
457 | { |
458 | dTHR; |
459 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
460 | #ifdef COMPLEX_STATUS |
809a5acc |
461 | LvTARGOFF(sv) = statusvalue; |
462 | LvTARGLEN(sv) = statusvalue_vms; |
ff0cee69 |
463 | #endif |
809a5acc |
464 | } |
79072805 |
465 | break; |
466 | case '^': |
a0d0e21e |
467 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
468 | if (s) |
469 | sv_setpv(sv,s); |
470 | else { |
471 | sv_setpv(sv,GvENAME(defoutgv)); |
472 | sv_catpv(sv,"_TOP"); |
473 | } |
474 | break; |
475 | case '~': |
a0d0e21e |
476 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
477 | if (!s) |
478 | s = GvENAME(defoutgv); |
479 | sv_setpv(sv,s); |
480 | break; |
481 | #ifndef lint |
482 | case '=': |
188ea221 |
483 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
484 | break; |
485 | case '-': |
188ea221 |
486 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
487 | break; |
488 | case '%': |
188ea221 |
489 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 |
490 | break; |
491 | #endif |
492 | case ':': |
493 | break; |
494 | case '/': |
495 | break; |
496 | case '[': |
0f15f207 |
497 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 |
498 | break; |
499 | case '|': |
188ea221 |
500 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
501 | break; |
502 | case ',': |
503 | sv_setpvn(sv,ofs,ofslen); |
504 | break; |
505 | case '\\': |
506 | sv_setpvn(sv,ors,orslen); |
507 | break; |
508 | case '#': |
509 | sv_setpv(sv,ofmt); |
510 | break; |
511 | case '!': |
a5f75d66 |
512 | #ifdef VMS |
946ec16e |
513 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
514 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
515 | #else |
88e89b8a |
516 | { |
517 | int saveerrno = errno; |
946ec16e |
518 | sv_setnv(sv, (double)errno); |
88e89b8a |
519 | #ifdef OS2 |
520 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
521 | else |
a5f75d66 |
522 | #endif |
2304df62 |
523 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
524 | errno = saveerrno; |
525 | } |
526 | #endif |
946ec16e |
527 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
528 | break; |
529 | case '<': |
188ea221 |
530 | sv_setiv(sv, (IV)uid); |
79072805 |
531 | break; |
532 | case '>': |
188ea221 |
533 | sv_setiv(sv, (IV)euid); |
79072805 |
534 | break; |
535 | case '(': |
188ea221 |
536 | sv_setiv(sv, (IV)gid); |
fc36a67e |
537 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 |
538 | goto add_groups; |
539 | case ')': |
188ea221 |
540 | sv_setiv(sv, (IV)egid); |
fc36a67e |
541 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 |
542 | add_groups: |
79072805 |
543 | #ifdef HAS_GETGROUPS |
79072805 |
544 | { |
a0d0e21e |
545 | Groups_t gary[NGROUPS]; |
79072805 |
546 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
547 | while (--i >= 0) |
fc36a67e |
548 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
549 | } |
550 | #endif |
29355cf7 |
551 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
552 | break; |
553 | case '*': |
554 | break; |
555 | case '0': |
556 | break; |
557 | } |
a0d0e21e |
558 | return 0; |
79072805 |
559 | } |
560 | |
561 | int |
562 | magic_getuvar(sv, mg) |
563 | SV *sv; |
564 | MAGIC *mg; |
565 | { |
566 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
567 | |
568 | if (uf && uf->uf_val) |
569 | (*uf->uf_val)(uf->uf_index, sv); |
570 | return 0; |
571 | } |
572 | |
573 | int |
574 | magic_setenv(sv,mg) |
575 | SV* sv; |
576 | MAGIC* mg; |
577 | { |
578 | register char *s; |
88e89b8a |
579 | char *ptr; |
5aabfad6 |
580 | STRLEN len, klen; |
a0d0e21e |
581 | I32 i; |
1e422769 |
582 | |
a0d0e21e |
583 | s = SvPV(sv,len); |
5aabfad6 |
584 | ptr = MgPV(mg,klen); |
88e89b8a |
585 | my_setenv(ptr, s); |
1e422769 |
586 | |
a0d0e21e |
587 | #ifdef DYNAMIC_ENV_FETCH |
588 | /* We just undefd an environment var. Is a replacement */ |
589 | /* waiting in the wings? */ |
590 | if (!len) { |
5aabfad6 |
591 | SV **valp; |
592 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) |
593 | s = SvPV(*valp, len); |
a0d0e21e |
594 | } |
595 | #endif |
1e422769 |
596 | |
3e3baf6d |
597 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) |
79072805 |
598 | /* And you'll never guess what the dog had */ |
599 | /* in its mouth... */ |
463ee0b2 |
600 | if (tainting) { |
1e422769 |
601 | MgTAINTEDDIR_off(mg); |
602 | #ifdef VMS |
5aabfad6 |
603 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
604 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
605 | struct stat sbuf; |
606 | int i = 0, j = 0; |
607 | |
608 | do { /* DCL$PATH may be a search list */ |
609 | while (1) { /* as may dev portion of any element */ |
610 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
611 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
612 | cando_by_name(S_IWUSR,0,elt) ) { |
613 | MgTAINTEDDIR_on(mg); |
614 | return 0; |
615 | } |
616 | } |
617 | if ((cp = strchr(elt, ':')) != Nullch) |
618 | *cp = '\0'; |
619 | if (my_trnlnm(elt, eltbuf, j++)) |
620 | elt = eltbuf; |
621 | else |
622 | break; |
623 | } |
624 | j = 0; |
625 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
626 | } |
627 | #endif /* VMS */ |
5aabfad6 |
628 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
629 | char *strend = s + len; |
463ee0b2 |
630 | |
631 | while (s < strend) { |
96827780 |
632 | char tmpbuf[256]; |
1e422769 |
633 | struct stat st; |
96827780 |
634 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
635 | s, strend, ':', &i); |
463ee0b2 |
636 | s++; |
96827780 |
637 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
638 | || *tmpbuf != '/' |
639 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
640 | MgTAINTEDDIR_on(mg); |
1e422769 |
641 | return 0; |
642 | } |
463ee0b2 |
643 | } |
79072805 |
644 | } |
645 | } |
3e3baf6d |
646 | #endif /* neither OS2 nor AMIGAOS nor WIN32 */ |
1e422769 |
647 | |
79072805 |
648 | return 0; |
649 | } |
650 | |
651 | int |
85e6fe83 |
652 | magic_clearenv(sv,mg) |
653 | SV* sv; |
654 | MAGIC* mg; |
655 | { |
5aabfad6 |
656 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 |
657 | return 0; |
658 | } |
659 | |
88e89b8a |
660 | int |
3e3baf6d |
661 | magic_clear_all_env(sv,mg) |
662 | SV* sv; |
663 | MAGIC* mg; |
66b1d557 |
664 | { |
3e3baf6d |
665 | #if defined(VMS) |
666 | die("Can't make list assignment to %%ENV on this system"); |
667 | #else |
668 | #ifdef WIN32 |
669 | char *envv = GetEnvironmentStrings(); |
670 | char *cur = envv; |
671 | STRLEN len; |
672 | while (*cur) { |
673 | char *end = strchr(cur,'='); |
674 | if (end && end != cur) { |
675 | *end = '\0'; |
676 | my_setenv(cur,Nullch); |
677 | *end = '='; |
678 | cur += strlen(end+1)+1; |
679 | } |
680 | else if ((len = strlen(cur))) |
681 | cur += len+1; |
682 | } |
683 | FreeEnvironmentStrings(envv); |
66b1d557 |
684 | #else |
685 | I32 i; |
686 | |
687 | if (environ == origenviron) |
688 | New(901, environ, 1, char*); |
689 | else |
690 | for (i = 0; environ[i]; i++) |
691 | Safefree(environ[i]); |
692 | environ[0] = Nullch; |
693 | |
66b1d557 |
694 | #endif |
3e3baf6d |
695 | #endif |
696 | return 0; |
66b1d557 |
697 | } |
698 | |
699 | int |
88e89b8a |
700 | magic_getsig(sv,mg) |
701 | SV* sv; |
702 | MAGIC* mg; |
703 | { |
704 | I32 i; |
705 | /* Are we fetching a signal entry? */ |
5aabfad6 |
706 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
707 | if (i) { |
708 | if(psig_ptr[i]) |
709 | sv_setsv(sv,psig_ptr[i]); |
710 | else { |
e858de61 |
711 | dTHR; /* just for SvREFCNT_inc */ |
ff68c719 |
712 | Sighandler_t sigstate = rsignal_state(i); |
713 | |
88e89b8a |
714 | /* cache state so we don't fetch it again */ |
ff68c719 |
715 | if(sigstate == SIG_IGN) |
88e89b8a |
716 | sv_setpv(sv,"IGNORE"); |
717 | else |
718 | sv_setsv(sv,&sv_undef); |
719 | psig_ptr[i] = SvREFCNT_inc(sv); |
720 | SvTEMP_off(sv); |
721 | } |
722 | } |
723 | return 0; |
724 | } |
725 | int |
726 | magic_clearsig(sv,mg) |
727 | SV* sv; |
728 | MAGIC* mg; |
729 | { |
730 | I32 i; |
731 | /* Are we clearing a signal entry? */ |
5aabfad6 |
732 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
733 | if (i) { |
734 | if(psig_ptr[i]) { |
735 | SvREFCNT_dec(psig_ptr[i]); |
736 | psig_ptr[i]=0; |
737 | } |
738 | if(psig_name[i]) { |
739 | SvREFCNT_dec(psig_name[i]); |
740 | psig_name[i]=0; |
741 | } |
742 | } |
743 | return 0; |
744 | } |
3d37d572 |
745 | |
85e6fe83 |
746 | int |
79072805 |
747 | magic_setsig(sv,mg) |
748 | SV* sv; |
749 | MAGIC* mg; |
750 | { |
11343788 |
751 | dTHR; |
79072805 |
752 | register char *s; |
753 | I32 i; |
748a9306 |
754 | SV** svp; |
a0d0e21e |
755 | |
5aabfad6 |
756 | s = MgPV(mg,na); |
748a9306 |
757 | if (*s == '_') { |
758 | if (strEQ(s,"__DIE__")) |
759 | svp = &diehook; |
760 | else if (strEQ(s,"__WARN__")) |
761 | svp = &warnhook; |
762 | else if (strEQ(s,"__PARSE__")) |
763 | svp = &parsehook; |
764 | else |
765 | croak("No such hook: %s", s); |
766 | i = 0; |
4633a7c4 |
767 | if (*svp) { |
768 | SvREFCNT_dec(*svp); |
769 | *svp = 0; |
770 | } |
748a9306 |
771 | } |
772 | else { |
773 | i = whichsig(s); /* ...no, a brick */ |
774 | if (!i) { |
775 | if (dowarn || strEQ(s,"ALARM")) |
776 | warn("No such signal: SIG%s", s); |
777 | return 0; |
778 | } |
ff0cee69 |
779 | SvREFCNT_dec(psig_name[i]); |
780 | SvREFCNT_dec(psig_ptr[i]); |
88e89b8a |
781 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
782 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 |
783 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a |
784 | SvREADONLY_on(psig_name[i]); |
748a9306 |
785 | } |
a0d0e21e |
786 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
787 | if (i) |
c23142e2 |
788 | (void)rsignal(i, sighandlerp); |
748a9306 |
789 | else |
790 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
791 | return 0; |
792 | } |
793 | s = SvPV_force(sv,na); |
748a9306 |
794 | if (strEQ(s,"IGNORE")) { |
795 | if (i) |
ff68c719 |
796 | (void)rsignal(i, SIG_IGN); |
748a9306 |
797 | else |
798 | *svp = 0; |
799 | } |
800 | else if (strEQ(s,"DEFAULT") || !*s) { |
801 | if (i) |
ff68c719 |
802 | (void)rsignal(i, SIG_DFL); |
748a9306 |
803 | else |
804 | *svp = 0; |
805 | } |
79072805 |
806 | else { |
5aabfad6 |
807 | /* |
808 | * We should warn if HINT_STRICT_REFS, but without |
809 | * access to a known hint bit in a known OP, we can't |
810 | * tell whether HINT_STRICT_REFS is in force or not. |
811 | */ |
46fc3d4c |
812 | if (!strchr(s,':') && !strchr(s,'\'')) |
813 | sv_setpv(sv, form("main::%s", s)); |
748a9306 |
814 | if (i) |
c23142e2 |
815 | (void)rsignal(i, sighandlerp); |
748a9306 |
816 | else |
817 | *svp = SvREFCNT_inc(sv); |
79072805 |
818 | } |
819 | return 0; |
820 | } |
821 | |
822 | int |
463ee0b2 |
823 | magic_setisa(sv,mg) |
79072805 |
824 | SV* sv; |
825 | MAGIC* mg; |
826 | { |
463ee0b2 |
827 | sub_generation++; |
828 | return 0; |
829 | } |
830 | |
a0d0e21e |
831 | #ifdef OVERLOAD |
832 | |
463ee0b2 |
833 | int |
a0d0e21e |
834 | magic_setamagic(sv,mg) |
463ee0b2 |
835 | SV* sv; |
836 | MAGIC* mg; |
837 | { |
a0d0e21e |
838 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
839 | amagic_generation++; |
463ee0b2 |
840 | |
a0d0e21e |
841 | return 0; |
842 | } |
843 | #endif /* OVERLOAD */ |
463ee0b2 |
844 | |
946ec16e |
845 | int |
846 | magic_setnkeys(sv,mg) |
847 | SV* sv; |
848 | MAGIC* mg; |
849 | { |
850 | if (LvTARG(sv)) { |
851 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
852 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ |
853 | } |
854 | return 0; |
855 | } |
856 | |
a0d0e21e |
857 | static int |
858 | magic_methpack(sv,mg,meth) |
859 | SV* sv; |
860 | MAGIC* mg; |
861 | char *meth; |
862 | { |
11343788 |
863 | dTHR; |
a0d0e21e |
864 | dSP; |
463ee0b2 |
865 | |
a0d0e21e |
866 | ENTER; |
867 | SAVETMPS; |
868 | PUSHMARK(sp); |
869 | EXTEND(sp, 2); |
870 | PUSHs(mg->mg_obj); |
88e89b8a |
871 | if (mg->mg_ptr) { |
872 | if (mg->mg_len >= 0) |
873 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
874 | else if (mg->mg_len == HEf_SVKEY) |
875 | PUSHs((SV*)mg->mg_ptr); |
876 | } |
a0d0e21e |
877 | else if (mg->mg_type == 'p') |
878 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
879 | PUTBACK; |
880 | |
a0d0e21e |
881 | if (perl_call_method(meth, G_SCALAR)) |
882 | sv_setsv(sv, *stack_sp--); |
463ee0b2 |
883 | |
a0d0e21e |
884 | FREETMPS; |
885 | LEAVE; |
886 | return 0; |
887 | } |
463ee0b2 |
888 | |
a0d0e21e |
889 | int |
890 | magic_getpack(sv,mg) |
891 | SV* sv; |
892 | MAGIC* mg; |
893 | { |
894 | magic_methpack(sv,mg,"FETCH"); |
895 | if (mg->mg_ptr) |
896 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
897 | return 0; |
898 | } |
899 | |
900 | int |
901 | magic_setpack(sv,mg) |
902 | SV* sv; |
903 | MAGIC* mg; |
904 | { |
11343788 |
905 | dTHR; |
463ee0b2 |
906 | dSP; |
463ee0b2 |
907 | |
a0d0e21e |
908 | PUSHMARK(sp); |
909 | EXTEND(sp, 3); |
910 | PUSHs(mg->mg_obj); |
88e89b8a |
911 | if (mg->mg_ptr) { |
912 | if (mg->mg_len >= 0) |
913 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
914 | else if (mg->mg_len == HEf_SVKEY) |
915 | PUSHs((SV*)mg->mg_ptr); |
916 | } |
a0d0e21e |
917 | else if (mg->mg_type == 'p') |
918 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
919 | PUSHs(sv); |
920 | PUTBACK; |
921 | |
a0d0e21e |
922 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 |
923 | |
924 | return 0; |
925 | } |
926 | |
927 | int |
928 | magic_clearpack(sv,mg) |
929 | SV* sv; |
930 | MAGIC* mg; |
931 | { |
a0d0e21e |
932 | return magic_methpack(sv,mg,"DELETE"); |
933 | } |
463ee0b2 |
934 | |
a0d0e21e |
935 | int magic_wipepack(sv,mg) |
936 | SV* sv; |
937 | MAGIC* mg; |
938 | { |
11343788 |
939 | dTHR; |
a0d0e21e |
940 | dSP; |
463ee0b2 |
941 | |
a0d0e21e |
942 | PUSHMARK(sp); |
943 | XPUSHs(mg->mg_obj); |
463ee0b2 |
944 | PUTBACK; |
463ee0b2 |
945 | |
a0d0e21e |
946 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 |
947 | |
948 | return 0; |
949 | } |
950 | |
951 | int |
952 | magic_nextpack(sv,mg,key) |
953 | SV* sv; |
954 | MAGIC* mg; |
955 | SV* key; |
956 | { |
11343788 |
957 | dTHR; |
463ee0b2 |
958 | dSP; |
a0d0e21e |
959 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
960 | |
961 | ENTER; |
a0d0e21e |
962 | SAVETMPS; |
963 | PUSHMARK(sp); |
964 | EXTEND(sp, 2); |
965 | PUSHs(mg->mg_obj); |
463ee0b2 |
966 | if (SvOK(key)) |
967 | PUSHs(key); |
968 | PUTBACK; |
969 | |
a0d0e21e |
970 | if (perl_call_method(meth, G_SCALAR)) |
971 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
972 | |
a0d0e21e |
973 | FREETMPS; |
974 | LEAVE; |
79072805 |
975 | return 0; |
976 | } |
977 | |
978 | int |
a0d0e21e |
979 | magic_existspack(sv,mg) |
980 | SV* sv; |
981 | MAGIC* mg; |
982 | { |
983 | return magic_methpack(sv,mg,"EXISTS"); |
984 | } |
985 | |
986 | int |
79072805 |
987 | magic_setdbline(sv,mg) |
988 | SV* sv; |
989 | MAGIC* mg; |
990 | { |
11343788 |
991 | dTHR; |
79072805 |
992 | OP *o; |
993 | I32 i; |
994 | GV* gv; |
995 | SV** svp; |
996 | |
997 | gv = DBline; |
998 | i = SvTRUE(sv); |
188ea221 |
999 | svp = av_fetch(GvAV(gv), |
5aabfad6 |
1000 | atoi(MgPV(mg,na)), FALSE); |
8990e307 |
1001 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
1002 | o->op_private = i; |
79072805 |
1003 | else |
1004 | warn("Can't break at that line\n"); |
1005 | return 0; |
1006 | } |
1007 | |
1008 | int |
1009 | magic_getarylen(sv,mg) |
1010 | SV* sv; |
1011 | MAGIC* mg; |
1012 | { |
0f15f207 |
1013 | dTHR; |
a0d0e21e |
1014 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
1015 | return 0; |
1016 | } |
1017 | |
1018 | int |
1019 | magic_setarylen(sv,mg) |
1020 | SV* sv; |
1021 | MAGIC* mg; |
1022 | { |
0f15f207 |
1023 | dTHR; |
a0d0e21e |
1024 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1025 | return 0; |
1026 | } |
1027 | |
1028 | int |
1029 | magic_getpos(sv,mg) |
1030 | SV* sv; |
1031 | MAGIC* mg; |
1032 | { |
1033 | SV* lsv = LvTARG(sv); |
1034 | |
1035 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1036 | mg = mg_find(lsv, 'g'); |
1037 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1038 | dTHR; |
a0d0e21e |
1039 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1040 | return 0; |
1041 | } |
1042 | } |
1043 | (void)SvOK_off(sv); |
1044 | return 0; |
1045 | } |
1046 | |
1047 | int |
1048 | magic_setpos(sv,mg) |
1049 | SV* sv; |
1050 | MAGIC* mg; |
1051 | { |
1052 | SV* lsv = LvTARG(sv); |
1053 | SSize_t pos; |
1054 | STRLEN len; |
1055 | |
1056 | mg = 0; |
1057 | |
1058 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1059 | mg = mg_find(lsv, 'g'); |
1060 | if (!mg) { |
1061 | if (!SvOK(sv)) |
1062 | return 0; |
1063 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1064 | mg = mg_find(lsv, 'g'); |
1065 | } |
1066 | else if (!SvOK(sv)) { |
1067 | mg->mg_len = -1; |
1068 | return 0; |
1069 | } |
1070 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1071 | |
0f15f207 |
1072 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e |
1073 | if (pos < 0) { |
1074 | pos += len; |
1075 | if (pos < 0) |
1076 | pos = 0; |
1077 | } |
1078 | else if (pos > len) |
1079 | pos = len; |
1080 | mg->mg_len = pos; |
71be2cbc |
1081 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1082 | |
79072805 |
1083 | return 0; |
1084 | } |
1085 | |
1086 | int |
1087 | magic_getglob(sv,mg) |
1088 | SV* sv; |
1089 | MAGIC* mg; |
1090 | { |
8646b087 |
1091 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1092 | SvFAKE_off(sv); |
946ec16e |
1093 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1094 | SvFAKE_on(sv); |
1095 | } |
1096 | else |
946ec16e |
1097 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1098 | return 0; |
1099 | } |
1100 | |
1101 | int |
1102 | magic_setglob(sv,mg) |
1103 | SV* sv; |
1104 | MAGIC* mg; |
1105 | { |
1106 | register char *s; |
1107 | GV* gv; |
1108 | |
1109 | if (!SvOK(sv)) |
1110 | return 0; |
463ee0b2 |
1111 | s = SvPV(sv, na); |
79072805 |
1112 | if (*s == '*' && s[1]) |
1113 | s++; |
85e6fe83 |
1114 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1115 | if (sv == (SV*)gv) |
1116 | return 0; |
1117 | if (GvGP(sv)) |
88e89b8a |
1118 | gp_free((GV*)sv); |
79072805 |
1119 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1120 | return 0; |
1121 | } |
1122 | |
1123 | int |
1124 | magic_setsubstr(sv,mg) |
1125 | SV* sv; |
1126 | MAGIC* mg; |
1127 | { |
8990e307 |
1128 | STRLEN len; |
1129 | char *tmps = SvPV(sv,len); |
1130 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1131 | return 0; |
1132 | } |
1133 | |
1134 | int |
463ee0b2 |
1135 | magic_gettaint(sv,mg) |
1136 | SV* sv; |
1137 | MAGIC* mg; |
1138 | { |
bbce6d69 |
1139 | TAINT_IF((mg->mg_len & 1) || |
1140 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1141 | return 0; |
1142 | } |
1143 | |
1144 | int |
1145 | magic_settaint(sv,mg) |
1146 | SV* sv; |
1147 | MAGIC* mg; |
1148 | { |
11343788 |
1149 | dTHR; |
748a9306 |
1150 | if (localizing) { |
1151 | if (localizing == 1) |
1152 | mg->mg_len <<= 1; |
1153 | else |
1154 | mg->mg_len >>= 1; |
a0d0e21e |
1155 | } |
748a9306 |
1156 | else if (tainted) |
1157 | mg->mg_len |= 1; |
1158 | else |
1159 | mg->mg_len &= ~1; |
463ee0b2 |
1160 | return 0; |
1161 | } |
1162 | |
1163 | int |
79072805 |
1164 | magic_setvec(sv,mg) |
1165 | SV* sv; |
1166 | MAGIC* mg; |
1167 | { |
1168 | do_vecset(sv); /* XXX slurp this routine */ |
1169 | return 0; |
1170 | } |
1171 | |
1172 | int |
68dc0745 |
1173 | magic_getdefelem(sv,mg) |
5f05dabc |
1174 | SV* sv; |
1175 | MAGIC* mg; |
1176 | { |
71be2cbc |
1177 | SV *targ = Nullsv; |
5f05dabc |
1178 | if (LvTARGLEN(sv)) { |
68dc0745 |
1179 | if (mg->mg_obj) { |
1180 | HV* hv = (HV*)LvTARG(sv); |
1181 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); |
1182 | if (he) |
1183 | targ = HeVAL(he); |
1184 | } |
1185 | else { |
1186 | AV* av = (AV*)LvTARG(sv); |
1187 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1188 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1189 | } |
1190 | if (targ && targ != &sv_undef) { |
e858de61 |
1191 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1192 | /* somebody else defined it for us */ |
1193 | SvREFCNT_dec(LvTARG(sv)); |
1194 | LvTARG(sv) = SvREFCNT_inc(targ); |
1195 | LvTARGLEN(sv) = 0; |
1196 | SvREFCNT_dec(mg->mg_obj); |
1197 | mg->mg_obj = Nullsv; |
1198 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1199 | } |
5f05dabc |
1200 | } |
71be2cbc |
1201 | else |
1202 | targ = LvTARG(sv); |
1203 | sv_setsv(sv, targ ? targ : &sv_undef); |
1204 | return 0; |
1205 | } |
1206 | |
1207 | int |
68dc0745 |
1208 | magic_setdefelem(sv,mg) |
71be2cbc |
1209 | SV* sv; |
1210 | MAGIC* mg; |
1211 | { |
1212 | if (LvTARGLEN(sv)) |
68dc0745 |
1213 | vivify_defelem(sv); |
1214 | if (LvTARG(sv)) { |
5f05dabc |
1215 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1216 | SvSETMAGIC(LvTARG(sv)); |
1217 | } |
5f05dabc |
1218 | return 0; |
1219 | } |
1220 | |
1221 | int |
68dc0745 |
1222 | magic_freedefelem(sv,mg) |
5f05dabc |
1223 | SV* sv; |
1224 | MAGIC* mg; |
1225 | { |
1226 | SvREFCNT_dec(LvTARG(sv)); |
71be2cbc |
1227 | return 0; |
1228 | } |
1229 | |
1230 | void |
68dc0745 |
1231 | vivify_defelem(sv) |
71be2cbc |
1232 | SV* sv; |
1233 | { |
e858de61 |
1234 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 |
1235 | MAGIC* mg; |
1236 | SV* value; |
71be2cbc |
1237 | |
68dc0745 |
1238 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1239 | return; |
68dc0745 |
1240 | if (mg->mg_obj) { |
1241 | HV* hv = (HV*)LvTARG(sv); |
1242 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); |
1243 | if (!he || (value = HeVAL(he)) == &sv_undef) |
1244 | croak(no_helem, SvPV(mg->mg_obj, na)); |
71be2cbc |
1245 | } |
68dc0745 |
1246 | else { |
1247 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1248 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1249 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1250 | else { |
1251 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
1252 | if (!svp || (value = *svp) == &sv_undef) |
1253 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1254 | } |
1255 | } |
3e3baf6d |
1256 | (void)SvREFCNT_inc(value); |
68dc0745 |
1257 | SvREFCNT_dec(LvTARG(sv)); |
1258 | LvTARG(sv) = value; |
71be2cbc |
1259 | LvTARGLEN(sv) = 0; |
68dc0745 |
1260 | SvREFCNT_dec(mg->mg_obj); |
1261 | mg->mg_obj = Nullsv; |
1262 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1263 | } |
1264 | |
1265 | int |
93a17b20 |
1266 | magic_setmglob(sv,mg) |
1267 | SV* sv; |
1268 | MAGIC* mg; |
1269 | { |
a0d0e21e |
1270 | mg->mg_len = -1; |
c6496cc7 |
1271 | SvSCREAM_off(sv); |
93a17b20 |
1272 | return 0; |
1273 | } |
1274 | |
1275 | int |
79072805 |
1276 | magic_setbm(sv,mg) |
1277 | SV* sv; |
1278 | MAGIC* mg; |
1279 | { |
463ee0b2 |
1280 | sv_unmagic(sv, 'B'); |
79072805 |
1281 | SvVALID_off(sv); |
1282 | return 0; |
1283 | } |
1284 | |
1285 | int |
55497cff |
1286 | magic_setfm(sv,mg) |
1287 | SV* sv; |
1288 | MAGIC* mg; |
1289 | { |
1290 | sv_unmagic(sv, 'f'); |
1291 | SvCOMPILED_off(sv); |
1292 | return 0; |
1293 | } |
1294 | |
1295 | int |
79072805 |
1296 | magic_setuvar(sv,mg) |
1297 | SV* sv; |
1298 | MAGIC* mg; |
1299 | { |
1300 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1301 | |
1302 | if (uf && uf->uf_set) |
1303 | (*uf->uf_set)(uf->uf_index, sv); |
1304 | return 0; |
1305 | } |
1306 | |
7a4c00b4 |
1307 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1308 | int |
bbce6d69 |
1309 | magic_setcollxfrm(sv,mg) |
1310 | SV* sv; |
1311 | MAGIC* mg; |
1312 | { |
1313 | /* |
1314 | * René Descartes said "I think not." |
1315 | * and vanished with a faint plop. |
1316 | */ |
7a4c00b4 |
1317 | if (mg->mg_ptr) { |
1318 | Safefree(mg->mg_ptr); |
1319 | mg->mg_ptr = NULL; |
1320 | mg->mg_len = -1; |
1321 | } |
bbce6d69 |
1322 | return 0; |
1323 | } |
7a4c00b4 |
1324 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1325 | |
1326 | int |
79072805 |
1327 | magic_set(sv,mg) |
1328 | SV* sv; |
1329 | MAGIC* mg; |
1330 | { |
11343788 |
1331 | dTHR; |
79072805 |
1332 | register char *s; |
1333 | I32 i; |
8990e307 |
1334 | STRLEN len; |
79072805 |
1335 | switch (*mg->mg_ptr) { |
748a9306 |
1336 | case '\001': /* ^A */ |
1337 | sv_setsv(bodytarget, sv); |
1338 | break; |
79072805 |
1339 | case '\004': /* ^D */ |
8990e307 |
1340 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1341 | DEBUG_x(dump_all()); |
1342 | break; |
28f23441 |
1343 | case '\005': /* ^E */ |
1344 | #ifdef VMS |
1345 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1346 | #else |
f86702cc |
1347 | /* will anyone ever use this? */ |
1348 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1349 | #endif |
1350 | break; |
79072805 |
1351 | case '\006': /* ^F */ |
463ee0b2 |
1352 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1353 | break; |
a0d0e21e |
1354 | case '\010': /* ^H */ |
1355 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1356 | break; |
79072805 |
1357 | case '\t': /* ^I */ |
1358 | if (inplace) |
1359 | Safefree(inplace); |
1360 | if (SvOK(sv)) |
a0d0e21e |
1361 | inplace = savepv(SvPV(sv,na)); |
79072805 |
1362 | else |
1363 | inplace = Nullch; |
1364 | break; |
28f23441 |
1365 | case '\017': /* ^O */ |
1366 | if (osname) |
1367 | Safefree(osname); |
1368 | if (SvOK(sv)) |
1369 | osname = savepv(SvPV(sv,na)); |
1370 | else |
1371 | osname = Nullch; |
1372 | break; |
79072805 |
1373 | case '\020': /* ^P */ |
84902520 |
1374 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1375 | break; |
1376 | case '\024': /* ^T */ |
88e89b8a |
1377 | #ifdef BIG_TIME |
1378 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
1379 | #else |
85e6fe83 |
1380 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1381 | #endif |
79072805 |
1382 | break; |
1383 | case '\027': /* ^W */ |
463ee0b2 |
1384 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1385 | break; |
1386 | case '.': |
748a9306 |
1387 | if (localizing) { |
1388 | if (localizing == 1) |
1389 | save_sptr((SV**)&last_in_gv); |
1390 | } |
88e89b8a |
1391 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e |
1392 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1393 | break; |
1394 | case '^': |
a0d0e21e |
1395 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1396 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1397 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1398 | break; |
1399 | case '~': |
a0d0e21e |
1400 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1401 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1402 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1403 | break; |
1404 | case '=': |
a0d0e21e |
1405 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1406 | break; |
1407 | case '-': |
a0d0e21e |
1408 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1409 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1410 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1411 | break; |
1412 | case '%': |
a0d0e21e |
1413 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1414 | break; |
1415 | case '|': |
4b65379b |
1416 | { |
1417 | IO *io = GvIOp(defoutgv); |
1418 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1419 | IoFLAGS(io) &= ~IOf_FLUSH; |
1420 | else { |
1421 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1422 | PerlIO *ofp = IoOFP(io); |
1423 | if (ofp) |
1424 | (void)PerlIO_flush(ofp); |
1425 | IoFLAGS(io) |= IOf_FLUSH; |
1426 | } |
1427 | } |
79072805 |
1428 | } |
1429 | break; |
1430 | case '*': |
463ee0b2 |
1431 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1432 | multiline = (i != 0); |
1433 | break; |
1434 | case '/': |
c07a80fd |
1435 | SvREFCNT_dec(nrs); |
1436 | nrs = newSVsv(sv); |
1437 | SvREFCNT_dec(rs); |
1438 | rs = SvREFCNT_inc(nrs); |
79072805 |
1439 | break; |
1440 | case '\\': |
1441 | if (ors) |
1442 | Safefree(ors); |
e3c19b7b |
1443 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1444 | ors = savepv(SvPV(sv,orslen)); |
1445 | else { |
1446 | ors = Nullch; |
1447 | orslen = 0; |
1448 | } |
79072805 |
1449 | break; |
1450 | case ',': |
1451 | if (ofs) |
1452 | Safefree(ofs); |
a0d0e21e |
1453 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1454 | break; |
1455 | case '#': |
1456 | if (ofmt) |
1457 | Safefree(ofmt); |
a0d0e21e |
1458 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1459 | break; |
1460 | case '[': |
a0d0e21e |
1461 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1462 | break; |
1463 | case '?': |
ff0cee69 |
1464 | #ifdef COMPLEX_STATUS |
1465 | if (localizing == 2) { |
1466 | statusvalue = LvTARGOFF(sv); |
1467 | statusvalue_vms = LvTARGLEN(sv); |
1468 | } |
1469 | else |
1470 | #endif |
1471 | #ifdef VMSISH_STATUS |
1472 | if (VMSISH_STATUS) |
1473 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1474 | else |
1475 | #endif |
1476 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1477 | break; |
1478 | case '!': |
f86702cc |
1479 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1480 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1481 | break; |
1482 | case '<': |
463ee0b2 |
1483 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1484 | if (delaymagic) { |
1485 | delaymagic |= DM_RUID; |
1486 | break; /* don't do magic till later */ |
1487 | } |
1488 | #ifdef HAS_SETRUID |
85e6fe83 |
1489 | (void)setruid((Uid_t)uid); |
79072805 |
1490 | #else |
1491 | #ifdef HAS_SETREUID |
85e6fe83 |
1492 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1493 | #else |
85e6fe83 |
1494 | #ifdef HAS_SETRESUID |
1495 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1496 | #else |
1497 | if (uid == euid) /* special case $< = $> */ |
1498 | (void)setuid(uid); |
a0d0e21e |
1499 | else { |
1500 | uid = (I32)getuid(); |
463ee0b2 |
1501 | croak("setruid() not implemented"); |
a0d0e21e |
1502 | } |
79072805 |
1503 | #endif |
1504 | #endif |
85e6fe83 |
1505 | #endif |
748a9306 |
1506 | uid = (I32)getuid(); |
4633a7c4 |
1507 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1508 | break; |
1509 | case '>': |
463ee0b2 |
1510 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1511 | if (delaymagic) { |
1512 | delaymagic |= DM_EUID; |
1513 | break; /* don't do magic till later */ |
1514 | } |
1515 | #ifdef HAS_SETEUID |
85e6fe83 |
1516 | (void)seteuid((Uid_t)euid); |
79072805 |
1517 | #else |
1518 | #ifdef HAS_SETREUID |
85e6fe83 |
1519 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1520 | #else |
1521 | #ifdef HAS_SETRESUID |
1522 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1523 | #else |
1524 | if (euid == uid) /* special case $> = $< */ |
1525 | setuid(euid); |
a0d0e21e |
1526 | else { |
1527 | euid = (I32)geteuid(); |
463ee0b2 |
1528 | croak("seteuid() not implemented"); |
a0d0e21e |
1529 | } |
79072805 |
1530 | #endif |
1531 | #endif |
85e6fe83 |
1532 | #endif |
79072805 |
1533 | euid = (I32)geteuid(); |
4633a7c4 |
1534 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1535 | break; |
1536 | case '(': |
463ee0b2 |
1537 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1538 | if (delaymagic) { |
1539 | delaymagic |= DM_RGID; |
1540 | break; /* don't do magic till later */ |
1541 | } |
1542 | #ifdef HAS_SETRGID |
85e6fe83 |
1543 | (void)setrgid((Gid_t)gid); |
79072805 |
1544 | #else |
1545 | #ifdef HAS_SETREGID |
85e6fe83 |
1546 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1547 | #else |
1548 | #ifdef HAS_SETRESGID |
1549 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1550 | #else |
1551 | if (gid == egid) /* special case $( = $) */ |
1552 | (void)setgid(gid); |
748a9306 |
1553 | else { |
1554 | gid = (I32)getgid(); |
463ee0b2 |
1555 | croak("setrgid() not implemented"); |
748a9306 |
1556 | } |
79072805 |
1557 | #endif |
1558 | #endif |
85e6fe83 |
1559 | #endif |
79072805 |
1560 | gid = (I32)getgid(); |
4633a7c4 |
1561 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1562 | break; |
1563 | case ')': |
5cd24f17 |
1564 | #ifdef HAS_SETGROUPS |
1565 | { |
1566 | char *p = SvPV(sv, na); |
1567 | Groups_t gary[NGROUPS]; |
1568 | |
1569 | SET_NUMERIC_STANDARD(); |
1570 | while (isSPACE(*p)) |
1571 | ++p; |
1572 | egid = I_V(atof(p)); |
1573 | for (i = 0; i < NGROUPS; ++i) { |
1574 | while (*p && !isSPACE(*p)) |
1575 | ++p; |
1576 | while (isSPACE(*p)) |
1577 | ++p; |
1578 | if (!*p) |
1579 | break; |
1580 | gary[i] = I_V(atof(p)); |
1581 | } |
8cc95fdb |
1582 | if (i) |
1583 | (void)setgroups(i, gary); |
5cd24f17 |
1584 | } |
1585 | #else /* HAS_SETGROUPS */ |
463ee0b2 |
1586 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1587 | #endif /* HAS_SETGROUPS */ |
79072805 |
1588 | if (delaymagic) { |
1589 | delaymagic |= DM_EGID; |
1590 | break; /* don't do magic till later */ |
1591 | } |
1592 | #ifdef HAS_SETEGID |
85e6fe83 |
1593 | (void)setegid((Gid_t)egid); |
79072805 |
1594 | #else |
1595 | #ifdef HAS_SETREGID |
85e6fe83 |
1596 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1597 | #else |
1598 | #ifdef HAS_SETRESGID |
1599 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1600 | #else |
1601 | if (egid == gid) /* special case $) = $( */ |
1602 | (void)setgid(egid); |
748a9306 |
1603 | else { |
1604 | egid = (I32)getegid(); |
463ee0b2 |
1605 | croak("setegid() not implemented"); |
748a9306 |
1606 | } |
79072805 |
1607 | #endif |
1608 | #endif |
85e6fe83 |
1609 | #endif |
79072805 |
1610 | egid = (I32)getegid(); |
4633a7c4 |
1611 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1612 | break; |
1613 | case ':': |
a0d0e21e |
1614 | chopset = SvPV_force(sv,na); |
79072805 |
1615 | break; |
1616 | case '0': |
1617 | if (!origalen) { |
1618 | s = origargv[0]; |
1619 | s += strlen(s); |
1620 | /* See if all the arguments are contiguous in memory */ |
1621 | for (i = 1; i < origargc; i++) { |
1622 | if (origargv[i] == s + 1) |
1623 | s += strlen(++s); /* this one is ok too */ |
1624 | } |
bbce6d69 |
1625 | /* can grab env area too? */ |
1626 | if (origenviron && origenviron[0] == s + 1) { |
66b1d557 |
1627 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
1628 | /* force copy of environment */ |
1629 | for (i = 0; origenviron[i]; i++) |
1630 | if (origenviron[i] == s + 1) |
1631 | s += strlen(++s); |
1632 | } |
1633 | origalen = s - origargv[0]; |
1634 | } |
a0d0e21e |
1635 | s = SvPV_force(sv,len); |
8990e307 |
1636 | i = len; |
79072805 |
1637 | if (i >= origalen) { |
1638 | i = origalen; |
1639 | SvCUR_set(sv, i); |
1640 | *SvEND(sv) = '\0'; |
1641 | Copy(s, origargv[0], i, char); |
1642 | } |
1643 | else { |
1644 | Copy(s, origargv[0], i, char); |
1645 | s = origargv[0]+i; |
1646 | *s++ = '\0'; |
1647 | while (++i < origalen) |
8990e307 |
1648 | *s++ = ' '; |
1649 | s = origargv[0]+i; |
ed6116ce |
1650 | for (i = 1; i < origargc; i++) |
8990e307 |
1651 | origargv[i] = Nullch; |
79072805 |
1652 | } |
1653 | break; |
1654 | } |
1655 | return 0; |
1656 | } |
1657 | |
f93b4edd |
1658 | #ifdef USE_THREADS |
1659 | int |
1660 | magic_mutexfree(sv, mg) |
1661 | SV *sv; |
1662 | MAGIC *mg; |
1663 | { |
1664 | dTHR; |
bc1f4c86 |
1665 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1666 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
1667 | if (MgOWNER(mg)) |
1668 | croak("panic: magic_mutexfree"); |
1669 | MUTEX_DESTROY(MgMUTEXP(mg)); |
1670 | COND_DESTROY(MgCONDP(mg)); |
1671 | return 0; |
1672 | } |
1673 | #endif /* USE_THREADS */ |
1674 | |
79072805 |
1675 | I32 |
1676 | whichsig(sig) |
1677 | char *sig; |
1678 | { |
1679 | register char **sigv; |
1680 | |
1681 | for (sigv = sig_name+1; *sigv; sigv++) |
1682 | if (strEQ(sig,*sigv)) |
8e07c86e |
1683 | return sig_num[sigv - sig_name]; |
79072805 |
1684 | #ifdef SIGCLD |
1685 | if (strEQ(sig,"CHLD")) |
1686 | return SIGCLD; |
1687 | #endif |
1688 | #ifdef SIGCHLD |
1689 | if (strEQ(sig,"CLD")) |
1690 | return SIGCHLD; |
1691 | #endif |
1692 | return 0; |
1693 | } |
1694 | |
84902520 |
1695 | static SV* sig_sv; |
1696 | |
1697 | static void |
1698 | unwind_handler_stack(p) |
1699 | void *p; |
1700 | { |
ff26ac79 |
1701 | dTHR; |
84902520 |
1702 | U32 flags = *(U32*)p; |
1703 | |
1704 | if (flags & 1) |
1705 | savestack_ix -= 5; /* Unprotect save in progress. */ |
1706 | /* cxstack_ix-- Not needed, die already unwound it. */ |
1707 | if (flags & 64) |
1708 | SvREFCNT_dec(sig_sv); |
1709 | } |
1710 | |
ecfc5424 |
1711 | Signal_t |
79072805 |
1712 | sighandler(sig) |
a0d0e21e |
1713 | int sig; |
79072805 |
1714 | { |
11343788 |
1715 | dTHR; |
79072805 |
1716 | dSP; |
1717 | GV *gv; |
a0d0e21e |
1718 | HV *st; |
84902520 |
1719 | SV *sv, *tSv = Sv; |
79072805 |
1720 | CV *cv; |
79072805 |
1721 | AV *oldstack; |
84902520 |
1722 | OP *myop = op; |
1723 | U32 flags = 0; |
1724 | I32 o_save_i = savestack_ix, type; |
1725 | CONTEXT *cx; |
1726 | XPV *tXpv = Xpv; |
1727 | |
1728 | if (savestack_ix + 15 <= savestack_max) |
1729 | flags |= 1; |
1730 | if (cxstack_ix < cxstack_max - 2) |
1731 | flags |= 2; |
1732 | if (markstack_ptr < markstack_max - 2) |
1733 | flags |= 4; |
1734 | if (retstack_ix < retstack_max - 2) |
1735 | flags |= 8; |
1736 | if (scopestack_ix < scopestack_max - 3) |
1737 | flags |= 16; |
1738 | |
1739 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ |
1740 | cxstack_ix++; /* Protect from overwrite. */ |
1741 | cx = &cxstack[cxstack_ix]; |
1742 | type = cx->cx_type; /* Can be during partial write. */ |
1743 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ |
1744 | } |
ff0cee69 |
1745 | if (!psig_ptr[sig]) |
1746 | die("Signal SIG%s received, but no signal handler set.\n", |
1747 | sig_name[sig]); |
1748 | |
84902520 |
1749 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1750 | infinity, so we fix 4 (in fact 5): */ |
1751 | if (flags & 1) { |
1752 | savestack_ix += 5; /* Protect save in progress. */ |
1753 | o_save_i = savestack_ix; |
1754 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
1755 | } |
1756 | if (flags & 4) |
1757 | markstack_ptr++; /* Protect mark. */ |
1758 | if (flags & 8) { |
1759 | retstack_ix++; |
1760 | retstack[retstack_ix] = NULL; |
1761 | } |
1762 | if (flags & 16) |
1763 | scopestack_ix += 1; |
1764 | /* sv_2cv is too complicated, try a simpler variant first: */ |
1765 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) |
1766 | || SvTYPE(cv) != SVt_PVCV) |
1767 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
1768 | |
a0d0e21e |
1769 | if (!cv || !CvROOT(cv)) { |
79072805 |
1770 | if (dowarn) |
1771 | warn("SIG%s handler \"%s\" not defined.\n", |
88e89b8a |
1772 | sig_name[sig], GvENAME(gv) ); |
79072805 |
1773 | return; |
1774 | } |
1775 | |
88e89b8a |
1776 | oldstack = curstack; |
1777 | if (curstack != signalstack) |
a0d0e21e |
1778 | AvFILL(signalstack) = 0; |
88e89b8a |
1779 | SWITCHSTACK(curstack, signalstack); |
79072805 |
1780 | |
84902520 |
1781 | if(psig_name[sig]) { |
88e89b8a |
1782 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 |
1783 | flags |= 64; |
1784 | sig_sv = sv; |
1785 | } else { |
ff0cee69 |
1786 | sv = sv_newmortal(); |
1787 | sv_setpv(sv,sig_name[sig]); |
88e89b8a |
1788 | } |
a0d0e21e |
1789 | PUSHMARK(sp); |
79072805 |
1790 | PUSHs(sv); |
79072805 |
1791 | PUTBACK; |
a0d0e21e |
1792 | |
1793 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1794 | |
1795 | SWITCHSTACK(signalstack, oldstack); |
84902520 |
1796 | if (flags & 1) |
1797 | savestack_ix -= 8; /* Unprotect save in progress. */ |
1798 | if (flags & 2) { |
1799 | cxstack[cxstack_ix].cx_type = type; |
1800 | cxstack_ix -= 1; |
1801 | } |
1802 | if (flags & 4) |
1803 | markstack_ptr--; |
1804 | if (flags & 8) |
1805 | retstack_ix--; |
1806 | if (flags & 16) |
1807 | scopestack_ix -= 1; |
1808 | if (flags & 64) |
1809 | SvREFCNT_dec(sv); |
1810 | op = myop; /* Apparently not needed... */ |
1811 | |
1812 | Sv = tSv; /* Restore global temporaries. */ |
1813 | Xpv = tXpv; |
79072805 |
1814 | return; |
1815 | } |