Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
4bb101f2 |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
b94e2f88 |
4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others |
79072805 |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. |
8 | * |
a0d0e21e |
9 | */ |
10 | |
11 | /* |
12 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never |
13 | * come here, and I don't want to see no more magic,' he said, and fell silent." |
79072805 |
14 | */ |
15 | |
ccfc67b7 |
16 | /* |
17 | =head1 Magical Functions |
166f8a29 |
18 | |
19 | "Magic" is special data attached to SV structures in order to give them |
20 | "magical" properties. When any Perl code tries to read from, or assign to, |
21 | an SV marked as magical, it calls the 'get' or 'set' function associated |
22 | with that SV's magic. A get is called prior to reading an SV, in order to |
ddfa107c |
23 | give it a chance to update its internal value (get on $. writes the line |
166f8a29 |
24 | number of the last read filehandle into to the SV's IV slot), while |
25 | set is called after an SV has been written to, in order to allow it to make |
ddfa107c |
26 | use of its changed value (set on $/ copies the SV's new value to the |
166f8a29 |
27 | PL_rs global variable). |
28 | |
29 | Magic is implemented as a linked list of MAGIC structures attached to the |
30 | SV. Each MAGIC struct holds the type of the magic, a pointer to an array |
31 | of functions that implement the get(), set(), length() etc functions, |
32 | plus space for some flags and pointers. For example, a tied variable has |
33 | a MAGIC structure that contains a pointer to the object associated with the |
34 | tie. |
35 | |
ccfc67b7 |
36 | */ |
37 | |
79072805 |
38 | #include "EXTERN.h" |
864dbfa3 |
39 | #define PERL_IN_MG_C |
79072805 |
40 | #include "perl.h" |
41 | |
5cd24f17 |
42 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
b7953727 |
43 | # ifdef I_GRP |
44 | # include <grp.h> |
45 | # endif |
188ea221 |
46 | #endif |
47 | |
757f63d8 |
48 | #if defined(HAS_SETGROUPS) |
49 | # ifndef NGROUPS |
50 | # define NGROUPS 32 |
51 | # endif |
52 | #endif |
53 | |
17aa7f3d |
54 | #ifdef __hpux |
55 | # include <sys/pstat.h> |
56 | #endif |
57 | |
8aad04aa |
58 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
59 | Signal_t Perl_csighandler(int sig, ...); |
60 | #else |
e69880a5 |
61 | Signal_t Perl_csighandler(int sig); |
8aad04aa |
62 | #endif |
e69880a5 |
63 | |
9cffb111 |
64 | #ifdef __Lynx__ |
65 | /* Missing protos on LynxOS */ |
66 | void setruid(uid_t id); |
67 | void seteuid(uid_t id); |
68 | void setrgid(uid_t id); |
69 | void setegid(uid_t id); |
70 | #endif |
71 | |
c07a80fd |
72 | /* |
73 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
74 | */ |
75 | |
76 | struct magic_state { |
77 | SV* mgs_sv; |
78 | U32 mgs_flags; |
455ece5e |
79 | I32 mgs_ss_ix; |
c07a80fd |
80 | }; |
455ece5e |
81 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e |
82 | |
83 | STATIC void |
8fb26106 |
84 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd |
85 | { |
97aff369 |
86 | dVAR; |
455ece5e |
87 | MGS* mgs; |
c07a80fd |
88 | assert(SvMAGICAL(sv)); |
f8c7b90f |
89 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d |
90 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ |
91 | if (SvIsCOW(sv)) |
9a265e59 |
92 | sv_force_normal_flags(sv, 0); |
765f542d |
93 | #endif |
c07a80fd |
94 | |
8772537c |
95 | SAVEDESTRUCTOR_X(S_restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e |
96 | |
97 | mgs = SSPTR(mgs_ix, MGS*); |
c07a80fd |
98 | mgs->mgs_sv = sv; |
99 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
455ece5e |
100 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd |
101 | |
102 | SvMAGICAL_off(sv); |
103 | SvREADONLY_off(sv); |
06759ea0 |
104 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
105 | } |
106 | |
954c1994 |
107 | /* |
108 | =for apidoc mg_magical |
109 | |
110 | Turns on the magical status of an SV. See C<sv_magic>. |
111 | |
112 | =cut |
113 | */ |
114 | |
8990e307 |
115 | void |
864dbfa3 |
116 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 |
117 | { |
e1ec3a88 |
118 | const MAGIC* mg; |
8990e307 |
119 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c |
120 | const MGVTBL* const vtbl = mg->mg_virtual; |
8990e307 |
121 | if (vtbl) { |
2b260de0 |
122 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
123 | SvGMAGICAL_on(sv); |
124 | if (vtbl->svt_set) |
125 | SvSMAGICAL_on(sv); |
2b260de0 |
126 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 |
127 | SvRMAGICAL_on(sv); |
128 | } |
129 | } |
130 | } |
131 | |
954c1994 |
132 | /* |
133 | =for apidoc mg_get |
134 | |
135 | Do magic after a value is retrieved from the SV. See C<sv_magic>. |
136 | |
137 | =cut |
138 | */ |
139 | |
79072805 |
140 | int |
864dbfa3 |
141 | Perl_mg_get(pTHX_ SV *sv) |
79072805 |
142 | { |
97aff369 |
143 | dVAR; |
35a4481c |
144 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
fe2774ed |
145 | const bool was_temp = (bool)SvTEMP(sv); |
0723351e |
146 | int have_new = 0; |
ff76feab |
147 | MAGIC *newmg, *head, *cur, *mg; |
20135930 |
148 | /* guard against sv having being freed midway by holding a private |
6683b158 |
149 | reference. */ |
150 | |
151 | /* sv_2mortal has this side effect of turning on the TEMP flag, which can |
152 | cause the SV's buffer to get stolen (and maybe other stuff). |
153 | So restore it. |
154 | */ |
155 | sv_2mortal(SvREFCNT_inc(sv)); |
156 | if (!was_temp) { |
157 | SvTEMP_off(sv); |
158 | } |
159 | |
455ece5e |
160 | save_magic(mgs_ix, sv); |
463ee0b2 |
161 | |
ff76feab |
162 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
163 | list of magic. svt_get() may delete the current entry, add new |
164 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ |
165 | |
166 | newmg = cur = head = mg = SvMAGIC(sv); |
167 | while (mg) { |
35a4481c |
168 | const MGVTBL * const vtbl = mg->mg_virtual; |
ff76feab |
169 | |
2b260de0 |
170 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe |
171 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 |
172 | |
58f82c5c |
173 | /* guard against magic having been deleted - eg FETCH calling |
174 | * untie */ |
175 | if (!SvMAGIC(sv)) |
176 | break; |
b77f7d40 |
177 | |
ff76feab |
178 | /* Don't restore the flags for this entry if it was deleted. */ |
179 | if (mg->mg_flags & MGf_GSKIP) |
180 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; |
a0d0e21e |
181 | } |
ff76feab |
182 | |
183 | mg = mg->mg_moremagic; |
184 | |
0723351e |
185 | if (have_new) { |
ff76feab |
186 | /* Have we finished with the new entries we saw? Start again |
187 | where we left off (unless there are more new entries). */ |
188 | if (mg == head) { |
0723351e |
189 | have_new = 0; |
ff76feab |
190 | mg = cur; |
191 | head = newmg; |
192 | } |
193 | } |
194 | |
195 | /* Were any new entries added? */ |
0723351e |
196 | if (!have_new && (newmg = SvMAGIC(sv)) != head) { |
197 | have_new = 1; |
ff76feab |
198 | cur = mg; |
199 | mg = newmg; |
760ac839 |
200 | } |
79072805 |
201 | } |
463ee0b2 |
202 | |
8772537c |
203 | restore_magic(INT2PTR(void *, (IV)mgs_ix)); |
6683b158 |
204 | |
205 | if (SvREFCNT(sv) == 1) { |
206 | /* We hold the last reference to this SV, which implies that the |
207 | SV was deleted as a side effect of the routines we called. */ |
0c34ef67 |
208 | SvOK_off(sv); |
6683b158 |
209 | } |
79072805 |
210 | return 0; |
211 | } |
212 | |
954c1994 |
213 | /* |
214 | =for apidoc mg_set |
215 | |
216 | Do magic after a value is assigned to the SV. See C<sv_magic>. |
217 | |
218 | =cut |
219 | */ |
220 | |
79072805 |
221 | int |
864dbfa3 |
222 | Perl_mg_set(pTHX_ SV *sv) |
79072805 |
223 | { |
97aff369 |
224 | dVAR; |
35a4481c |
225 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 |
226 | MAGIC* mg; |
463ee0b2 |
227 | MAGIC* nextmg; |
228 | |
455ece5e |
229 | save_magic(mgs_ix, sv); |
463ee0b2 |
230 | |
231 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
e1ec3a88 |
232 | const MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
233 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
234 | if (mg->mg_flags & MGf_GSKIP) { |
235 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
455ece5e |
236 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
237 | } |
2b260de0 |
238 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 |
239 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 |
240 | } |
463ee0b2 |
241 | |
8772537c |
242 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 |
243 | return 0; |
244 | } |
245 | |
954c1994 |
246 | /* |
247 | =for apidoc mg_length |
248 | |
249 | Report on the SV's length. See C<sv_magic>. |
250 | |
251 | =cut |
252 | */ |
253 | |
79072805 |
254 | U32 |
864dbfa3 |
255 | Perl_mg_length(pTHX_ SV *sv) |
79072805 |
256 | { |
97aff369 |
257 | dVAR; |
79072805 |
258 | MAGIC* mg; |
463ee0b2 |
259 | STRLEN len; |
463ee0b2 |
260 | |
79072805 |
261 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c |
262 | const MGVTBL * const vtbl = mg->mg_virtual; |
2b260de0 |
263 | if (vtbl && vtbl->svt_len) { |
35a4481c |
264 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
455ece5e |
265 | save_magic(mgs_ix, sv); |
a0d0e21e |
266 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
267 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
8772537c |
268 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 |
269 | return len; |
270 | } |
271 | } |
272 | |
35a4481c |
273 | if (DO_UTF8(sv)) { |
10516c54 |
274 | const U8 *s = (U8*)SvPV_const(sv, len); |
5636d518 |
275 | len = Perl_utf8_length(aTHX_ s, s + len); |
276 | } |
277 | else |
10516c54 |
278 | (void)SvPV_const(sv, len); |
463ee0b2 |
279 | return len; |
79072805 |
280 | } |
281 | |
8fb26106 |
282 | I32 |
864dbfa3 |
283 | Perl_mg_size(pTHX_ SV *sv) |
93965878 |
284 | { |
285 | MAGIC* mg; |
ac27b0f5 |
286 | |
93965878 |
287 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c |
288 | const MGVTBL* const vtbl = mg->mg_virtual; |
2b260de0 |
289 | if (vtbl && vtbl->svt_len) { |
35a4481c |
290 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
291 | I32 len; |
455ece5e |
292 | save_magic(mgs_ix, sv); |
93965878 |
293 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
294 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
8772537c |
295 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
93965878 |
296 | return len; |
297 | } |
298 | } |
299 | |
300 | switch(SvTYPE(sv)) { |
301 | case SVt_PVAV: |
35a4481c |
302 | return AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
93965878 |
303 | case SVt_PVHV: |
304 | /* FIXME */ |
305 | default: |
cea2e8a9 |
306 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 |
307 | break; |
308 | } |
309 | return 0; |
310 | } |
311 | |
954c1994 |
312 | /* |
313 | =for apidoc mg_clear |
314 | |
315 | Clear something magical that the SV represents. See C<sv_magic>. |
316 | |
317 | =cut |
318 | */ |
319 | |
79072805 |
320 | int |
864dbfa3 |
321 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 |
322 | { |
35a4481c |
323 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 |
324 | MAGIC* mg; |
463ee0b2 |
325 | |
455ece5e |
326 | save_magic(mgs_ix, sv); |
463ee0b2 |
327 | |
79072805 |
328 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c |
329 | const MGVTBL* const vtbl = mg->mg_virtual; |
a0d0e21e |
330 | /* omit GSKIP -- never set here */ |
727405f8 |
331 | |
2b260de0 |
332 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 |
333 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 |
334 | } |
463ee0b2 |
335 | |
8772537c |
336 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 |
337 | return 0; |
338 | } |
339 | |
954c1994 |
340 | /* |
341 | =for apidoc mg_find |
342 | |
343 | Finds the magic pointer for type matching the SV. See C<sv_magic>. |
344 | |
345 | =cut |
346 | */ |
347 | |
93a17b20 |
348 | MAGIC* |
35a4481c |
349 | Perl_mg_find(pTHX_ const SV *sv, int type) |
93a17b20 |
350 | { |
35a4481c |
351 | if (sv) { |
352 | MAGIC *mg; |
353 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
354 | if (mg->mg_type == type) |
355 | return mg; |
356 | } |
93a17b20 |
357 | } |
358 | return 0; |
359 | } |
360 | |
954c1994 |
361 | /* |
362 | =for apidoc mg_copy |
363 | |
364 | Copies the magic from one SV to another. See C<sv_magic>. |
365 | |
366 | =cut |
367 | */ |
368 | |
79072805 |
369 | int |
864dbfa3 |
370 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 |
371 | { |
463ee0b2 |
372 | int count = 0; |
79072805 |
373 | MAGIC* mg; |
463ee0b2 |
374 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c |
375 | const MGVTBL* const vtbl = mg->mg_virtual; |
68795e93 |
376 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
377 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); |
378 | } |
823a54a3 |
379 | else { |
380 | const char type = mg->mg_type; |
381 | if (isUPPER(type)) { |
382 | sv_magic(nsv, |
383 | (type == PERL_MAGIC_tied) |
384 | ? SvTIED_obj(sv, mg) |
385 | : (type == PERL_MAGIC_regdata && mg->mg_obj) |
386 | ? sv |
387 | : mg->mg_obj, |
388 | toLOWER(type), key, klen); |
389 | count++; |
390 | } |
79072805 |
391 | } |
79072805 |
392 | } |
463ee0b2 |
393 | return count; |
79072805 |
394 | } |
395 | |
954c1994 |
396 | /* |
0cbee0a4 |
397 | =for apidoc mg_localize |
398 | |
399 | Copy some of the magic from an existing SV to new localized version of |
400 | that SV. Container magic (eg %ENV, $1, tie) gets copied, value magic |
401 | doesn't (eg taint, pos). |
402 | |
403 | =cut |
404 | */ |
405 | |
406 | void |
407 | Perl_mg_localize(pTHX_ SV *sv, SV *nsv) |
408 | { |
97aff369 |
409 | dVAR; |
0cbee0a4 |
410 | MAGIC *mg; |
411 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
412 | const MGVTBL* const vtbl = mg->mg_virtual; |
413 | switch (mg->mg_type) { |
414 | /* value magic types: don't copy */ |
415 | case PERL_MAGIC_bm: |
416 | case PERL_MAGIC_fm: |
417 | case PERL_MAGIC_regex_global: |
418 | case PERL_MAGIC_nkeys: |
419 | #ifdef USE_LOCALE_COLLATE |
420 | case PERL_MAGIC_collxfrm: |
421 | #endif |
422 | case PERL_MAGIC_qr: |
423 | case PERL_MAGIC_taint: |
424 | case PERL_MAGIC_vec: |
425 | case PERL_MAGIC_vstring: |
426 | case PERL_MAGIC_utf8: |
427 | case PERL_MAGIC_substr: |
428 | case PERL_MAGIC_defelem: |
429 | case PERL_MAGIC_arylen: |
430 | case PERL_MAGIC_pos: |
431 | case PERL_MAGIC_backref: |
432 | case PERL_MAGIC_arylen_p: |
433 | case PERL_MAGIC_rhash: |
434 | case PERL_MAGIC_symtab: |
435 | continue; |
436 | } |
437 | |
a5063e7c |
438 | if ((mg->mg_flags & MGf_LOCAL) && vtbl->svt_local) |
439 | (void)CALL_FPTR(vtbl->svt_local)(aTHX_ nsv, mg); |
440 | else |
0cbee0a4 |
441 | sv_magicext(nsv, mg->mg_obj, mg->mg_type, vtbl, |
442 | mg->mg_ptr, mg->mg_len); |
a5063e7c |
443 | |
0cbee0a4 |
444 | /* container types should remain read-only across localization */ |
445 | SvFLAGS(nsv) |= SvREADONLY(sv); |
446 | } |
447 | |
448 | if (SvTYPE(nsv) >= SVt_PVMG && SvMAGIC(nsv)) { |
449 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
450 | PL_localizing = 1; |
451 | SvSETMAGIC(nsv); |
452 | PL_localizing = 0; |
453 | } |
454 | } |
455 | |
456 | /* |
954c1994 |
457 | =for apidoc mg_free |
458 | |
459 | Free any magic storage used by the SV. See C<sv_magic>. |
460 | |
461 | =cut |
462 | */ |
463 | |
79072805 |
464 | int |
864dbfa3 |
465 | Perl_mg_free(pTHX_ SV *sv) |
79072805 |
466 | { |
467 | MAGIC* mg; |
468 | MAGIC* moremagic; |
469 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
35a4481c |
470 | const MGVTBL* const vtbl = mg->mg_virtual; |
79072805 |
471 | moremagic = mg->mg_moremagic; |
2b260de0 |
472 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 |
473 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 |
474 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
979acdb5 |
475 | if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8) |
88e89b8a |
476 | Safefree(mg->mg_ptr); |
565764a8 |
477 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
478 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 |
479 | } |
b881518d |
480 | if (mg->mg_flags & MGf_REFCOUNTED) |
481 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
482 | Safefree(mg); |
483 | } |
b162af07 |
484 | SvMAGIC_set(sv, NULL); |
79072805 |
485 | return 0; |
486 | } |
487 | |
79072805 |
488 | #include <signal.h> |
79072805 |
489 | |
942e002e |
490 | U32 |
864dbfa3 |
491 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
492 | { |
97aff369 |
493 | dVAR; |
8772537c |
494 | PERL_UNUSED_ARG(sv); |
6cef1e77 |
495 | |
0bd48802 |
496 | if (PL_curpm) { |
497 | register const REGEXP * const rx = PM_GETRE(PL_curpm); |
498 | if (rx) { |
499 | return mg->mg_obj |
500 | ? rx->nparens /* @+ */ |
501 | : rx->lastparen; /* @- */ |
502 | } |
8f580fb8 |
503 | } |
ac27b0f5 |
504 | |
942e002e |
505 | return (U32)-1; |
6cef1e77 |
506 | } |
507 | |
508 | int |
864dbfa3 |
509 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
510 | { |
97aff369 |
511 | dVAR; |
0bd48802 |
512 | if (PL_curpm) { |
513 | register const REGEXP * const rx = PM_GETRE(PL_curpm); |
514 | if (rx) { |
515 | register const I32 paren = mg->mg_len; |
516 | register I32 s; |
517 | register I32 t; |
518 | if (paren < 0) |
519 | return 0; |
520 | if (paren <= (I32)rx->nparens && |
521 | (s = rx->startp[paren]) != -1 && |
522 | (t = rx->endp[paren]) != -1) |
523 | { |
524 | register I32 i; |
525 | if (mg->mg_obj) /* @+ */ |
526 | i = t; |
527 | else /* @- */ |
528 | i = s; |
529 | |
530 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
531 | const char * const b = rx->subbeg; |
532 | if (b) |
533 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); |
534 | } |
727405f8 |
535 | |
0bd48802 |
536 | sv_setiv(sv, i); |
1aa99e6b |
537 | } |
0bd48802 |
538 | } |
6cef1e77 |
539 | } |
540 | return 0; |
541 | } |
542 | |
e4b89193 |
543 | int |
a29d06ed |
544 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
545 | { |
8772537c |
546 | PERL_UNUSED_ARG(sv); PERL_UNUSED_ARG(mg); |
a29d06ed |
547 | Perl_croak(aTHX_ PL_no_modify); |
0dbb1585 |
548 | NORETURN_FUNCTION_END; |
a29d06ed |
549 | } |
550 | |
93a17b20 |
551 | U32 |
864dbfa3 |
552 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
553 | { |
97aff369 |
554 | dVAR; |
93a17b20 |
555 | register I32 paren; |
93a17b20 |
556 | register I32 i; |
dd374669 |
557 | register const REGEXP *rx; |
a197cbdd |
558 | I32 s1, t1; |
93a17b20 |
559 | |
560 | switch (*mg->mg_ptr) { |
561 | case '1': case '2': case '3': case '4': |
562 | case '5': case '6': case '7': case '8': case '9': case '&': |
aaa362c4 |
563 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
564 | |
ffc61ed2 |
565 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 |
566 | getparen: |
eb160463 |
567 | if (paren <= (I32)rx->nparens && |
cf93c79d |
568 | (s1 = rx->startp[paren]) != -1 && |
569 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
570 | { |
cf93c79d |
571 | i = t1 - s1; |
a197cbdd |
572 | getlen: |
a30b2f1f |
573 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
a28509cc |
574 | const char * const s = rx->subbeg + s1; |
768c67ee |
575 | const U8 *ep; |
576 | STRLEN el; |
ffc61ed2 |
577 | |
6d5fa195 |
578 | i = t1 - s1; |
768c67ee |
579 | if (is_utf8_string_loclen((U8*)s, i, &ep, &el)) |
580 | i = el; |
a197cbdd |
581 | } |
ffc61ed2 |
582 | if (i < 0) |
0844c848 |
583 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 |
584 | return i; |
93a17b20 |
585 | } |
235bddc8 |
586 | else { |
587 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c |
588 | report_uninit(sv); |
235bddc8 |
589 | } |
590 | } |
591 | else { |
592 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c |
593 | report_uninit(sv); |
93a17b20 |
594 | } |
748a9306 |
595 | return 0; |
93a17b20 |
596 | case '+': |
aaa362c4 |
597 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 |
598 | paren = rx->lastparen; |
13f57bf8 |
599 | if (paren) |
600 | goto getparen; |
93a17b20 |
601 | } |
748a9306 |
602 | return 0; |
a01268b5 |
603 | case '\016': /* ^N */ |
604 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
605 | paren = rx->lastcloseparen; |
606 | if (paren) |
607 | goto getparen; |
608 | } |
609 | return 0; |
93a17b20 |
610 | case '`': |
aaa362c4 |
611 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
612 | if (rx->startp[0] != -1) { |
613 | i = rx->startp[0]; |
a197cbdd |
614 | if (i > 0) { |
615 | s1 = 0; |
616 | t1 = i; |
617 | goto getlen; |
618 | } |
93a17b20 |
619 | } |
93a17b20 |
620 | } |
748a9306 |
621 | return 0; |
93a17b20 |
622 | case '\'': |
aaa362c4 |
623 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
624 | if (rx->endp[0] != -1) { |
625 | i = rx->sublen - rx->endp[0]; |
a197cbdd |
626 | if (i > 0) { |
627 | s1 = rx->endp[0]; |
628 | t1 = rx->sublen; |
629 | goto getlen; |
630 | } |
93a17b20 |
631 | } |
93a17b20 |
632 | } |
748a9306 |
633 | return 0; |
93a17b20 |
634 | } |
635 | magic_get(sv,mg); |
2d8e6c8d |
636 | if (!SvPOK(sv) && SvNIOK(sv)) { |
8b6b16e7 |
637 | sv_2pv(sv, 0); |
2d8e6c8d |
638 | } |
93a17b20 |
639 | if (SvPOK(sv)) |
640 | return SvCUR(sv); |
641 | return 0; |
642 | } |
643 | |
ad3296c6 |
644 | #define SvRTRIM(sv) STMT_START { \ |
645 | STRLEN len = SvCUR(sv); \ |
646 | while (len > 0 && isSPACE(SvPVX(sv)[len-1])) \ |
647 | --len; \ |
648 | SvCUR_set(sv, len); \ |
649 | } STMT_END |
650 | |
79072805 |
651 | int |
864dbfa3 |
652 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
653 | { |
27da23d5 |
654 | dVAR; |
79072805 |
655 | register I32 paren; |
35272f84 |
656 | register char *s = NULL; |
79072805 |
657 | register I32 i; |
d9f97599 |
658 | register REGEXP *rx; |
823a54a3 |
659 | const char * const remaining = mg->mg_ptr + 1; |
660 | const char nextchar = *remaining; |
79072805 |
661 | |
662 | switch (*mg->mg_ptr) { |
748a9306 |
663 | case '\001': /* ^A */ |
3280af22 |
664 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
665 | break; |
e5218da5 |
666 | case '\003': /* ^C, ^CHILD_ERROR_NATIVE */ |
823a54a3 |
667 | if (nextchar == '\0') { |
e5218da5 |
668 | sv_setiv(sv, (IV)PL_minus_c); |
669 | } |
823a54a3 |
670 | else if (strEQ(remaining, "HILD_ERROR_NATIVE")) { |
e5218da5 |
671 | sv_setiv(sv, (IV)STATUS_NATIVE); |
672 | } |
49460fe6 |
673 | break; |
674 | |
79072805 |
675 | case '\004': /* ^D */ |
aea4f609 |
676 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
79072805 |
677 | break; |
28f23441 |
678 | case '\005': /* ^E */ |
823a54a3 |
679 | if (nextchar == '\0') { |
cd39f2b6 |
680 | #ifdef MACOS_TRADITIONAL |
0a378802 |
681 | { |
682 | char msg[256]; |
727405f8 |
683 | |
0a378802 |
684 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 |
685 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 |
686 | } |
727405f8 |
687 | #else |
28f23441 |
688 | #ifdef VMS |
0a378802 |
689 | { |
690 | # include <descrip.h> |
691 | # include <starlet.h> |
692 | char msg[255]; |
693 | $DESCRIPTOR(msgdsc,msg); |
694 | sv_setnv(sv,(NV) vaxc$errno); |
695 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
696 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
697 | else |
c69006e4 |
698 | sv_setpvn(sv,"",0); |
0a378802 |
699 | } |
28f23441 |
700 | #else |
88e89b8a |
701 | #ifdef OS2 |
0a378802 |
702 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
703 | sv_setnv(sv, (NV)errno); |
704 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
705 | } else { |
706 | if (errno != errno_isOS2) { |
823a54a3 |
707 | const int tmp = _syserrno(); |
0a378802 |
708 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
709 | Perl_rc = tmp; |
710 | } |
711 | sv_setnv(sv, (NV)Perl_rc); |
712 | sv_setpv(sv, os2error(Perl_rc)); |
713 | } |
88e89b8a |
714 | #else |
22fae026 |
715 | #ifdef WIN32 |
0a378802 |
716 | { |
717 | DWORD dwErr = GetLastError(); |
718 | sv_setnv(sv, (NV)dwErr); |
823a54a3 |
719 | if (dwErr) { |
0a378802 |
720 | PerlProc_GetOSError(sv, dwErr); |
721 | } |
722 | else |
c69006e4 |
723 | sv_setpvn(sv, "", 0); |
0a378802 |
724 | SetLastError(dwErr); |
725 | } |
22fae026 |
726 | #else |
f6c8f21d |
727 | { |
8772537c |
728 | const int saveerrno = errno; |
f6c8f21d |
729 | sv_setnv(sv, (NV)errno); |
730 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
731 | errno = saveerrno; |
732 | } |
28f23441 |
733 | #endif |
88e89b8a |
734 | #endif |
22fae026 |
735 | #endif |
cd39f2b6 |
736 | #endif |
ad3296c6 |
737 | SvRTRIM(sv); |
0a378802 |
738 | SvNOK_on(sv); /* what a wonderful hack! */ |
739 | } |
823a54a3 |
740 | else if (strEQ(remaining, "NCODING")) |
0a378802 |
741 | sv_setsv(sv, PL_encoding); |
742 | break; |
79072805 |
743 | case '\006': /* ^F */ |
3280af22 |
744 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
745 | break; |
a0d0e21e |
746 | case '\010': /* ^H */ |
3280af22 |
747 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
748 | break; |
9d116dd7 |
749 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
750 | if (PL_inplace) |
751 | sv_setpv(sv, PL_inplace); |
79072805 |
752 | else |
3280af22 |
753 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
754 | break; |
ac27b0f5 |
755 | case '\017': /* ^O & ^OPEN */ |
823a54a3 |
756 | if (nextchar == '\0') { |
ac27b0f5 |
757 | sv_setpv(sv, PL_osname); |
3511154c |
758 | SvTAINTED_off(sv); |
759 | } |
823a54a3 |
760 | else if (strEQ(remaining, "PEN")) { |
ac27b0f5 |
761 | if (!PL_compiling.cop_io) |
762 | sv_setsv(sv, &PL_sv_undef); |
763 | else { |
764 | sv_setsv(sv, PL_compiling.cop_io); |
765 | } |
766 | } |
28f23441 |
767 | break; |
79072805 |
768 | case '\020': /* ^P */ |
3280af22 |
769 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
770 | break; |
fb73857a |
771 | case '\023': /* ^S */ |
823a54a3 |
772 | if (nextchar == '\0') { |
3280af22 |
773 | if (PL_lex_state != LEX_NOTPARSING) |
0c34ef67 |
774 | SvOK_off(sv); |
3280af22 |
775 | else if (PL_in_eval) |
6dc8a9e4 |
776 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a |
777 | else |
778 | sv_setiv(sv, 0); |
d58bf5aa |
779 | } |
fb73857a |
780 | break; |
79072805 |
781 | case '\024': /* ^T */ |
823a54a3 |
782 | if (nextchar == '\0') { |
88e89b8a |
783 | #ifdef BIG_TIME |
7c36658b |
784 | sv_setnv(sv, PL_basetime); |
88e89b8a |
785 | #else |
7c36658b |
786 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
787 | #endif |
7c36658b |
788 | } |
823a54a3 |
789 | else if (strEQ(remaining, "AINT")) |
9aa05f58 |
790 | sv_setiv(sv, PL_tainting |
791 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) |
792 | : 0); |
7c36658b |
793 | break; |
7cebcbc0 |
794 | case '\025': /* $^UNICODE, $^UTF8LOCALE */ |
823a54a3 |
795 | if (strEQ(remaining, "NICODE")) |
a05d7ebb |
796 | sv_setuv(sv, (UV) PL_unicode); |
823a54a3 |
797 | else if (strEQ(remaining, "TF8LOCALE")) |
7cebcbc0 |
798 | sv_setuv(sv, (UV) PL_utf8locale); |
fde18df1 |
799 | break; |
800 | case '\027': /* ^W & $^WARNING_BITS */ |
823a54a3 |
801 | if (nextchar == '\0') |
4438c4b7 |
802 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
823a54a3 |
803 | else if (strEQ(remaining, "ARNING_BITS")) { |
013b78e8 |
804 | if (PL_compiling.cop_warnings == pWARN_NONE) { |
4438c4b7 |
805 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
013b78e8 |
806 | } |
807 | else if (PL_compiling.cop_warnings == pWARN_STD) { |
808 | sv_setpvn( |
809 | sv, |
810 | (PL_dowarn & G_WARN_ON) ? WARN_ALLstring : WARN_NONEstring, |
811 | WARNsize |
812 | ); |
813 | } |
d3a7d8c7 |
814 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca |
815 | /* Get the bit mask for $warnings::Bits{all}, because |
816 | * it could have been extended by warnings::register */ |
817 | SV **bits_all; |
823a54a3 |
818 | HV * const bits=get_hv("warnings::Bits", FALSE); |
75b6c4ca |
819 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { |
820 | sv_setsv(sv, *bits_all); |
821 | } |
822 | else { |
823 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
824 | } |
ac27b0f5 |
825 | } |
4438c4b7 |
826 | else { |
827 | sv_setsv(sv, PL_compiling.cop_warnings); |
ac27b0f5 |
828 | } |
d3a7d8c7 |
829 | SvPOK_only(sv); |
4438c4b7 |
830 | } |
79072805 |
831 | break; |
832 | case '1': case '2': case '3': case '4': |
833 | case '5': case '6': case '7': case '8': case '9': case '&': |
aaa362c4 |
834 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
835 | I32 s1, t1; |
836 | |
a863c7d1 |
837 | /* |
838 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
839 | * XXX Does the new way break anything? |
840 | */ |
ffc61ed2 |
841 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 |
842 | getparen: |
eb160463 |
843 | if (paren <= (I32)rx->nparens && |
cf93c79d |
844 | (s1 = rx->startp[paren]) != -1 && |
845 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
846 | { |
cf93c79d |
847 | i = t1 - s1; |
848 | s = rx->subbeg + s1; |
01ec43d0 |
849 | if (!rx->subbeg) |
c2e66d9e |
850 | break; |
851 | |
13f57bf8 |
852 | getrx: |
748a9306 |
853 | if (i >= 0) { |
fabdb6c0 |
854 | const int oldtainted = PL_tainted; |
f6ba9920 |
855 | TAINT_NOT; |
cf93c79d |
856 | sv_setpvn(sv, s, i); |
f6ba9920 |
857 | PL_tainted = oldtainted; |
a30b2f1f |
858 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 |
859 | SvUTF8_on(sv); |
860 | else |
861 | SvUTF8_off(sv); |
e9814ee1 |
862 | if (PL_tainting) { |
863 | if (RX_MATCH_TAINTED(rx)) { |
823a54a3 |
864 | MAGIC* const mg = SvMAGIC(sv); |
e9814ee1 |
865 | MAGIC* mgt; |
866 | PL_tainted = 1; |
b162af07 |
867 | SvMAGIC_set(sv, mg->mg_moremagic); |
e9814ee1 |
868 | SvTAINT(sv); |
869 | if ((mgt = SvMAGIC(sv))) { |
870 | mg->mg_moremagic = mgt; |
b162af07 |
871 | SvMAGIC_set(sv, mg); |
e9814ee1 |
872 | } |
873 | } else |
874 | SvTAINTED_off(sv); |
875 | } |
748a9306 |
876 | break; |
877 | } |
79072805 |
878 | } |
79072805 |
879 | } |
3280af22 |
880 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
881 | break; |
882 | case '+': |
aaa362c4 |
883 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 |
884 | paren = rx->lastparen; |
a0d0e21e |
885 | if (paren) |
886 | goto getparen; |
79072805 |
887 | } |
3280af22 |
888 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
889 | break; |
a01268b5 |
890 | case '\016': /* ^N */ |
891 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
892 | paren = rx->lastcloseparen; |
893 | if (paren) |
894 | goto getparen; |
895 | } |
896 | sv_setsv(sv,&PL_sv_undef); |
897 | break; |
79072805 |
898 | case '`': |
aaa362c4 |
899 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
900 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
901 | i = rx->startp[0]; |
13f57bf8 |
902 | goto getrx; |
79072805 |
903 | } |
79072805 |
904 | } |
3280af22 |
905 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
906 | break; |
907 | case '\'': |
aaa362c4 |
908 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
909 | if (rx->subbeg && rx->endp[0] != -1) { |
910 | s = rx->subbeg + rx->endp[0]; |
911 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
912 | goto getrx; |
79072805 |
913 | } |
79072805 |
914 | } |
3280af22 |
915 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
916 | break; |
917 | case '.': |
3280af22 |
918 | if (GvIO(PL_last_in_gv)) { |
357c8808 |
919 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 |
920 | } |
79072805 |
921 | break; |
922 | case '?': |
809a5acc |
923 | { |
809a5acc |
924 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
925 | #ifdef COMPLEX_STATUS |
6b88bc9c |
926 | LvTARGOFF(sv) = PL_statusvalue; |
927 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
928 | #endif |
809a5acc |
929 | } |
79072805 |
930 | break; |
931 | case '^': |
0daa599b |
932 | if (GvIOp(PL_defoutgv)) |
933 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
934 | if (s) |
935 | sv_setpv(sv,s); |
936 | else { |
3280af22 |
937 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
938 | sv_catpv(sv,"_TOP"); |
939 | } |
940 | break; |
941 | case '~': |
0daa599b |
942 | if (GvIOp(PL_defoutgv)) |
943 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
944 | if (!s) |
3280af22 |
945 | s = GvENAME(PL_defoutgv); |
79072805 |
946 | sv_setpv(sv,s); |
947 | break; |
79072805 |
948 | case '=': |
0daa599b |
949 | if (GvIOp(PL_defoutgv)) |
950 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
951 | break; |
952 | case '-': |
0daa599b |
953 | if (GvIOp(PL_defoutgv)) |
954 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
955 | break; |
956 | case '%': |
0daa599b |
957 | if (GvIOp(PL_defoutgv)) |
958 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
959 | break; |
79072805 |
960 | case ':': |
961 | break; |
962 | case '/': |
963 | break; |
964 | case '[': |
3280af22 |
965 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
966 | break; |
967 | case '|': |
0daa599b |
968 | if (GvIOp(PL_defoutgv)) |
969 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
970 | break; |
971 | case ',': |
79072805 |
972 | break; |
973 | case '\\': |
b2ce0fda |
974 | if (PL_ors_sv) |
f28098ff |
975 | sv_copypv(sv, PL_ors_sv); |
79072805 |
976 | break; |
79072805 |
977 | case '!': |
a5f75d66 |
978 | #ifdef VMS |
65202027 |
979 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
980 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
981 | #else |
88e89b8a |
982 | { |
8772537c |
983 | const int saveerrno = errno; |
65202027 |
984 | sv_setnv(sv, (NV)errno); |
88e89b8a |
985 | #ifdef OS2 |
ed344e4f |
986 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
987 | sv_setpv(sv, os2error(Perl_rc)); |
88e89b8a |
988 | else |
a5f75d66 |
989 | #endif |
2304df62 |
990 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
991 | errno = saveerrno; |
992 | } |
993 | #endif |
ad3296c6 |
994 | SvRTRIM(sv); |
946ec16e |
995 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
996 | break; |
997 | case '<': |
3280af22 |
998 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
999 | break; |
1000 | case '>': |
3280af22 |
1001 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
1002 | break; |
1003 | case '(': |
3280af22 |
1004 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 |
1005 | #ifdef HAS_GETGROUPS |
afd78fd5 |
1006 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 |
1007 | #endif |
79072805 |
1008 | goto add_groups; |
1009 | case ')': |
3280af22 |
1010 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 |
1011 | #ifdef HAS_GETGROUPS |
afd78fd5 |
1012 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 |
1013 | #endif |
79072805 |
1014 | add_groups: |
79072805 |
1015 | #ifdef HAS_GETGROUPS |
79072805 |
1016 | { |
57d7c65e |
1017 | Groups_t *gary = NULL; |
1018 | I32 num_groups = getgroups(0, gary); |
1019 | Newx(gary, num_groups, Groups_t); |
1020 | num_groups = getgroups(num_groups, gary); |
1021 | while (--num_groups >= 0) |
1022 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, |
afd78fd5 |
1023 | gary[num_groups]); |
57d7c65e |
1024 | Safefree(gary); |
79072805 |
1025 | } |
1026 | #endif |
155aba94 |
1027 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
1028 | break; |
cd39f2b6 |
1029 | #ifndef MACOS_TRADITIONAL |
79072805 |
1030 | case '0': |
1031 | break; |
cd39f2b6 |
1032 | #endif |
79072805 |
1033 | } |
a0d0e21e |
1034 | return 0; |
79072805 |
1035 | } |
1036 | |
1037 | int |
864dbfa3 |
1038 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1039 | { |
8772537c |
1040 | struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 |
1041 | |
1042 | if (uf && uf->uf_val) |
24f81a43 |
1043 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 |
1044 | return 0; |
1045 | } |
1046 | |
1047 | int |
864dbfa3 |
1048 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1049 | { |
27da23d5 |
1050 | dVAR; |
5aabfad6 |
1051 | STRLEN len, klen; |
fabdb6c0 |
1052 | const char *s = SvPV_const(sv,len); |
1053 | const char * const ptr = MgPV_const(mg,klen); |
88e89b8a |
1054 | my_setenv(ptr, s); |
1e422769 |
1055 | |
a0d0e21e |
1056 | #ifdef DYNAMIC_ENV_FETCH |
1057 | /* We just undefd an environment var. Is a replacement */ |
1058 | /* waiting in the wings? */ |
1059 | if (!len) { |
fabdb6c0 |
1060 | SV ** const valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE); |
1061 | if (valp) |
b83604b4 |
1062 | s = SvPV_const(*valp, len); |
a0d0e21e |
1063 | } |
1064 | #endif |
1e422769 |
1065 | |
39e571d4 |
1066 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
1067 | /* And you'll never guess what the dog had */ |
1068 | /* in its mouth... */ |
3280af22 |
1069 | if (PL_tainting) { |
1e422769 |
1070 | MgTAINTEDDIR_off(mg); |
1071 | #ifdef VMS |
5aabfad6 |
1072 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
b8ffc8df |
1073 | char pathbuf[256], eltbuf[256], *cp, *elt; |
c623ac67 |
1074 | Stat_t sbuf; |
1e422769 |
1075 | int i = 0, j = 0; |
1076 | |
b8ffc8df |
1077 | strncpy(eltbuf, s, 255); |
1078 | eltbuf[255] = 0; |
1079 | elt = eltbuf; |
1e422769 |
1080 | do { /* DCL$PATH may be a search list */ |
1081 | while (1) { /* as may dev portion of any element */ |
1082 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
1083 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
1084 | cando_by_name(S_IWUSR,0,elt) ) { |
1085 | MgTAINTEDDIR_on(mg); |
1086 | return 0; |
1087 | } |
1088 | } |
1089 | if ((cp = strchr(elt, ':')) != Nullch) |
1090 | *cp = '\0'; |
1091 | if (my_trnlnm(elt, eltbuf, j++)) |
1092 | elt = eltbuf; |
1093 | else |
1094 | break; |
1095 | } |
1096 | j = 0; |
1097 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
1098 | } |
1099 | #endif /* VMS */ |
5aabfad6 |
1100 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
8772537c |
1101 | const char * const strend = s + len; |
463ee0b2 |
1102 | |
1103 | while (s < strend) { |
96827780 |
1104 | char tmpbuf[256]; |
c623ac67 |
1105 | Stat_t st; |
5f74f29c |
1106 | I32 i; |
96827780 |
1107 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
1108 | s, strend, ':', &i); |
463ee0b2 |
1109 | s++; |
96827780 |
1110 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
1111 | || *tmpbuf != '/' |
c6ed36e1 |
1112 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
1113 | MgTAINTEDDIR_on(mg); |
1e422769 |
1114 | return 0; |
1115 | } |
463ee0b2 |
1116 | } |
79072805 |
1117 | } |
1118 | } |
39e571d4 |
1119 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
1120 | |
79072805 |
1121 | return 0; |
1122 | } |
1123 | |
1124 | int |
864dbfa3 |
1125 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 |
1126 | { |
8772537c |
1127 | PERL_UNUSED_ARG(sv); |
01b8bcb7 |
1128 | my_setenv(MgPV_nolen_const(mg),Nullch); |
85e6fe83 |
1129 | return 0; |
1130 | } |
1131 | |
88e89b8a |
1132 | int |
864dbfa3 |
1133 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a |
1134 | { |
97aff369 |
1135 | dVAR; |
65e66c80 |
1136 | PERL_UNUSED_ARG(mg); |
b0269e46 |
1137 | #if defined(VMS) |
cea2e8a9 |
1138 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a |
1139 | #else |
3280af22 |
1140 | if (PL_localizing) { |
fb73857a |
1141 | HE* entry; |
b0269e46 |
1142 | my_clearenv(); |
fb73857a |
1143 | hv_iterinit((HV*)sv); |
155aba94 |
1144 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a |
1145 | I32 keylen; |
1146 | my_setenv(hv_iterkey(entry, &keylen), |
b83604b4 |
1147 | SvPV_nolen_const(hv_iterval((HV*)sv, entry))); |
fb73857a |
1148 | } |
1149 | } |
1150 | #endif |
1151 | return 0; |
1152 | } |
1153 | |
1154 | int |
864dbfa3 |
1155 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 |
1156 | { |
27da23d5 |
1157 | dVAR; |
8772537c |
1158 | PERL_UNUSED_ARG(sv); |
1159 | PERL_UNUSED_ARG(mg); |
b0269e46 |
1160 | #if defined(VMS) |
1161 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
1162 | #else |
1163 | my_clearenv(); |
1164 | #endif |
3e3baf6d |
1165 | return 0; |
66b1d557 |
1166 | } |
1167 | |
64ca3a65 |
1168 | #ifndef PERL_MICRO |
2d4fcd5e |
1169 | #ifdef HAS_SIGPROCMASK |
1170 | static void |
1171 | restore_sigmask(pTHX_ SV *save_sv) |
1172 | { |
0bd48802 |
1173 | const sigset_t * const ossetp = (const sigset_t *) SvPV_nolen_const( save_sv ); |
2d4fcd5e |
1174 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); |
1175 | } |
1176 | #endif |
66b1d557 |
1177 | int |
864dbfa3 |
1178 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
1179 | { |
97aff369 |
1180 | dVAR; |
88e89b8a |
1181 | /* Are we fetching a signal entry? */ |
8772537c |
1182 | const I32 i = whichsig(MgPV_nolen_const(mg)); |
e02bfb16 |
1183 | if (i > 0) { |
22c35a8c |
1184 | if(PL_psig_ptr[i]) |
1185 | sv_setsv(sv,PL_psig_ptr[i]); |
88e89b8a |
1186 | else { |
85b332e2 |
1187 | Sighandler_t sigstate; |
2e34cc90 |
1188 | sigstate = rsignal_state(i); |
23ada85b |
1189 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 |
1190 | if (PL_sig_handlers_initted && PL_sig_ignoring[i]) sigstate = SIG_IGN; |
2e34cc90 |
1191 | #endif |
1192 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 |
1193 | if (PL_sig_handlers_initted && PL_sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 |
1194 | #endif |
88e89b8a |
1195 | /* cache state so we don't fetch it again */ |
8aad04aa |
1196 | if(sigstate == (Sighandler_t) SIG_IGN) |
88e89b8a |
1197 | sv_setpv(sv,"IGNORE"); |
1198 | else |
3280af22 |
1199 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c |
1200 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1201 | SvTEMP_off(sv); |
1202 | } |
1203 | } |
1204 | return 0; |
1205 | } |
1206 | int |
864dbfa3 |
1207 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
1208 | { |
2d4fcd5e |
1209 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1210 | * refactoring might be in order. |
1211 | */ |
27da23d5 |
1212 | dVAR; |
8772537c |
1213 | register const char * const s = MgPV_nolen_const(mg); |
1214 | PERL_UNUSED_ARG(sv); |
2d4fcd5e |
1215 | if (*s == '_') { |
cbbf8932 |
1216 | SV** svp = NULL; |
2d4fcd5e |
1217 | if (strEQ(s,"__DIE__")) |
1218 | svp = &PL_diehook; |
1219 | else if (strEQ(s,"__WARN__")) |
1220 | svp = &PL_warnhook; |
1221 | else |
1222 | Perl_croak(aTHX_ "No such hook: %s", s); |
27da23d5 |
1223 | if (svp && *svp) { |
8772537c |
1224 | SV * const to_dec = *svp; |
cbbf8932 |
1225 | *svp = NULL; |
2d4fcd5e |
1226 | SvREFCNT_dec(to_dec); |
1227 | } |
1228 | } |
1229 | else { |
2d4fcd5e |
1230 | /* Are we clearing a signal entry? */ |
8772537c |
1231 | const I32 i = whichsig(s); |
e02bfb16 |
1232 | if (i > 0) { |
2d4fcd5e |
1233 | #ifdef HAS_SIGPROCMASK |
1234 | sigset_t set, save; |
1235 | SV* save_sv; |
1236 | /* Avoid having the signal arrive at a bad time, if possible. */ |
1237 | sigemptyset(&set); |
1238 | sigaddset(&set,i); |
1239 | sigprocmask(SIG_BLOCK, &set, &save); |
1240 | ENTER; |
1241 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); |
1242 | SAVEFREESV(save_sv); |
1243 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); |
1244 | #endif |
1245 | PERL_ASYNC_CHECK(); |
1246 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
27da23d5 |
1247 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2d4fcd5e |
1248 | #endif |
1249 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 |
1250 | PL_sig_defaulting[i] = 1; |
5c1546dc |
1251 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e |
1252 | #else |
8aad04aa |
1253 | (void)rsignal(i, (Sighandler_t) SIG_DFL); |
2d4fcd5e |
1254 | #endif |
1255 | if(PL_psig_name[i]) { |
1256 | SvREFCNT_dec(PL_psig_name[i]); |
1257 | PL_psig_name[i]=0; |
1258 | } |
1259 | if(PL_psig_ptr[i]) { |
dd374669 |
1260 | SV *to_dec=PL_psig_ptr[i]; |
2d4fcd5e |
1261 | PL_psig_ptr[i]=0; |
1262 | LEAVE; |
1263 | SvREFCNT_dec(to_dec); |
1264 | } |
1265 | else |
1266 | LEAVE; |
1267 | } |
88e89b8a |
1268 | } |
1269 | return 0; |
1270 | } |
3d37d572 |
1271 | |
dd374669 |
1272 | static void |
1273 | S_raise_signal(pTHX_ int sig) |
0a8e0eff |
1274 | { |
97aff369 |
1275 | dVAR; |
0a8e0eff |
1276 | /* Set a flag to say this signal is pending */ |
1277 | PL_psig_pend[sig]++; |
1278 | /* And one to say _a_ signal is pending */ |
1279 | PL_sig_pending = 1; |
1280 | } |
1281 | |
1282 | Signal_t |
8aad04aa |
1283 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
1284 | Perl_csighandler(int sig, ...) |
1285 | #else |
0a8e0eff |
1286 | Perl_csighandler(int sig) |
8aad04aa |
1287 | #endif |
0a8e0eff |
1288 | { |
1018e26f |
1289 | #ifdef PERL_GET_SIG_CONTEXT |
1290 | dTHXa(PERL_GET_SIG_CONTEXT); |
1291 | #else |
85b332e2 |
1292 | dTHX; |
1293 | #endif |
23ada85b |
1294 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc |
1295 | (void) rsignal(sig, PL_csighandlerp); |
27da23d5 |
1296 | if (PL_sig_ignoring[sig]) return; |
85b332e2 |
1297 | #endif |
2e34cc90 |
1298 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 |
1299 | if (PL_sig_defaulting[sig]) |
2e34cc90 |
1300 | #ifdef KILL_BY_SIGPRC |
1301 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); |
1302 | #else |
1303 | exit(1); |
1304 | #endif |
1305 | #endif |
4ffa73a3 |
1306 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1307 | /* Call the perl level handler now-- |
1308 | * with risk we may be in malloc() etc. */ |
1309 | (*PL_sighandlerp)(sig); |
1310 | else |
dd374669 |
1311 | S_raise_signal(aTHX_ sig); |
0a8e0eff |
1312 | } |
1313 | |
2e34cc90 |
1314 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1315 | void |
1316 | Perl_csighandler_init(void) |
1317 | { |
1318 | int sig; |
27da23d5 |
1319 | if (PL_sig_handlers_initted) return; |
2e34cc90 |
1320 | |
1321 | for (sig = 1; sig < SIG_SIZE; sig++) { |
1322 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
218fdd94 |
1323 | dTHX; |
27da23d5 |
1324 | PL_sig_defaulting[sig] = 1; |
5c1546dc |
1325 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 |
1326 | #endif |
1327 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 |
1328 | PL_sig_ignoring[sig] = 0; |
2e34cc90 |
1329 | #endif |
1330 | } |
27da23d5 |
1331 | PL_sig_handlers_initted = 1; |
2e34cc90 |
1332 | } |
1333 | #endif |
1334 | |
0a8e0eff |
1335 | void |
1336 | Perl_despatch_signals(pTHX) |
1337 | { |
97aff369 |
1338 | dVAR; |
0a8e0eff |
1339 | int sig; |
1340 | PL_sig_pending = 0; |
1341 | for (sig = 1; sig < SIG_SIZE; sig++) { |
1342 | if (PL_psig_pend[sig]) { |
25da4428 |
1343 | PERL_BLOCKSIG_ADD(set, sig); |
1344 | PL_psig_pend[sig] = 0; |
1345 | PERL_BLOCKSIG_BLOCK(set); |
f5203343 |
1346 | (*PL_sighandlerp)(sig); |
25da4428 |
1347 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff |
1348 | } |
1349 | } |
1350 | } |
1351 | |
85e6fe83 |
1352 | int |
864dbfa3 |
1353 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1354 | { |
27da23d5 |
1355 | dVAR; |
79072805 |
1356 | I32 i; |
cbbf8932 |
1357 | SV** svp = NULL; |
2d4fcd5e |
1358 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1359 | * effects (due to closures). We must make sure that the new disposition |
1360 | * is in place before it is called. |
1361 | */ |
cbbf8932 |
1362 | SV* to_dec = NULL; |
e72dc28c |
1363 | STRLEN len; |
2d4fcd5e |
1364 | #ifdef HAS_SIGPROCMASK |
1365 | sigset_t set, save; |
1366 | SV* save_sv; |
1367 | #endif |
a0d0e21e |
1368 | |
d5263905 |
1369 | register const char *s = MgPV_const(mg,len); |
748a9306 |
1370 | if (*s == '_') { |
1371 | if (strEQ(s,"__DIE__")) |
3280af22 |
1372 | svp = &PL_diehook; |
748a9306 |
1373 | else if (strEQ(s,"__WARN__")) |
3280af22 |
1374 | svp = &PL_warnhook; |
748a9306 |
1375 | else |
cea2e8a9 |
1376 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 |
1377 | i = 0; |
4633a7c4 |
1378 | if (*svp) { |
2d4fcd5e |
1379 | to_dec = *svp; |
cbbf8932 |
1380 | *svp = NULL; |
4633a7c4 |
1381 | } |
748a9306 |
1382 | } |
1383 | else { |
1384 | i = whichsig(s); /* ...no, a brick */ |
86d86cad |
1385 | if (i <= 0) { |
e476b1b5 |
1386 | if (ckWARN(WARN_SIGNAL)) |
9014280d |
1387 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 |
1388 | return 0; |
1389 | } |
2d4fcd5e |
1390 | #ifdef HAS_SIGPROCMASK |
1391 | /* Avoid having the signal arrive at a bad time, if possible. */ |
1392 | sigemptyset(&set); |
1393 | sigaddset(&set,i); |
1394 | sigprocmask(SIG_BLOCK, &set, &save); |
1395 | ENTER; |
1396 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); |
1397 | SAVEFREESV(save_sv); |
1398 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); |
1399 | #endif |
1400 | PERL_ASYNC_CHECK(); |
2e34cc90 |
1401 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
27da23d5 |
1402 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2e34cc90 |
1403 | #endif |
23ada85b |
1404 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 |
1405 | PL_sig_ignoring[i] = 0; |
85b332e2 |
1406 | #endif |
2e34cc90 |
1407 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 |
1408 | PL_sig_defaulting[i] = 0; |
2e34cc90 |
1409 | #endif |
22c35a8c |
1410 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e |
1411 | to_dec = PL_psig_ptr[i]; |
22c35a8c |
1412 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1413 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c |
1414 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c |
1415 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 |
1416 | } |
a0d0e21e |
1417 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e |
1418 | if (i) { |
5c1546dc |
1419 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e |
1420 | #ifdef HAS_SIGPROCMASK |
1421 | LEAVE; |
1422 | #endif |
1423 | } |
748a9306 |
1424 | else |
1425 | *svp = SvREFCNT_inc(sv); |
2d4fcd5e |
1426 | if(to_dec) |
1427 | SvREFCNT_dec(to_dec); |
a0d0e21e |
1428 | return 0; |
1429 | } |
e72dc28c |
1430 | s = SvPV_force(sv,len); |
748a9306 |
1431 | if (strEQ(s,"IGNORE")) { |
85b332e2 |
1432 | if (i) { |
23ada85b |
1433 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 |
1434 | PL_sig_ignoring[i] = 1; |
5c1546dc |
1435 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 |
1436 | #else |
8aad04aa |
1437 | (void)rsignal(i, (Sighandler_t) SIG_IGN); |
85b332e2 |
1438 | #endif |
2d4fcd5e |
1439 | } |
748a9306 |
1440 | } |
1441 | else if (strEQ(s,"DEFAULT") || !*s) { |
1442 | if (i) |
2e34cc90 |
1443 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1444 | { |
27da23d5 |
1445 | PL_sig_defaulting[i] = 1; |
5c1546dc |
1446 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 |
1447 | } |
1448 | #else |
8aad04aa |
1449 | (void)rsignal(i, (Sighandler_t) SIG_DFL); |
2e34cc90 |
1450 | #endif |
748a9306 |
1451 | } |
79072805 |
1452 | else { |
5aabfad6 |
1453 | /* |
1454 | * We should warn if HINT_STRICT_REFS, but without |
1455 | * access to a known hint bit in a known OP, we can't |
1456 | * tell whether HINT_STRICT_REFS is in force or not. |
1457 | */ |
46fc3d4c |
1458 | if (!strchr(s,':') && !strchr(s,'\'')) |
89529cee |
1459 | Perl_sv_insert(aTHX_ sv, 0, 0, STR_WITH_LEN("main::")); |
748a9306 |
1460 | if (i) |
5c1546dc |
1461 | (void)rsignal(i, PL_csighandlerp); |
748a9306 |
1462 | else |
1463 | *svp = SvREFCNT_inc(sv); |
79072805 |
1464 | } |
2d4fcd5e |
1465 | #ifdef HAS_SIGPROCMASK |
1466 | if(i) |
1467 | LEAVE; |
1468 | #endif |
1469 | if(to_dec) |
1470 | SvREFCNT_dec(to_dec); |
79072805 |
1471 | return 0; |
1472 | } |
64ca3a65 |
1473 | #endif /* !PERL_MICRO */ |
79072805 |
1474 | |
1475 | int |
864dbfa3 |
1476 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1477 | { |
97aff369 |
1478 | dVAR; |
8772537c |
1479 | PERL_UNUSED_ARG(sv); |
1480 | PERL_UNUSED_ARG(mg); |
3280af22 |
1481 | PL_sub_generation++; |
463ee0b2 |
1482 | return 0; |
1483 | } |
1484 | |
1485 | int |
864dbfa3 |
1486 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1487 | { |
97aff369 |
1488 | dVAR; |
8772537c |
1489 | PERL_UNUSED_ARG(sv); |
1490 | PERL_UNUSED_ARG(mg); |
a0d0e21e |
1491 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
1492 | PL_amagic_generation++; |
463ee0b2 |
1493 | |
a0d0e21e |
1494 | return 0; |
1495 | } |
463ee0b2 |
1496 | |
946ec16e |
1497 | int |
864dbfa3 |
1498 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1499 | { |
dd374669 |
1500 | HV * const hv = (HV*)LvTARG(sv); |
6ff81951 |
1501 | I32 i = 0; |
8772537c |
1502 | PERL_UNUSED_ARG(mg); |
7719e241 |
1503 | |
6ff81951 |
1504 | if (hv) { |
497b47a8 |
1505 | (void) hv_iterinit(hv); |
1506 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
1507 | i = HvKEYS(hv); |
1508 | else { |
1509 | while (hv_iternext(hv)) |
1510 | i++; |
1511 | } |
6ff81951 |
1512 | } |
1513 | |
1514 | sv_setiv(sv, (IV)i); |
1515 | return 0; |
1516 | } |
1517 | |
1518 | int |
864dbfa3 |
1519 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e |
1520 | { |
8772537c |
1521 | PERL_UNUSED_ARG(mg); |
946ec16e |
1522 | if (LvTARG(sv)) { |
1523 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1524 | } |
1525 | return 0; |
ac27b0f5 |
1526 | } |
946ec16e |
1527 | |
e336de0d |
1528 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1529 | STATIC int |
e1ec3a88 |
1530 | S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1531 | { |
97aff369 |
1532 | dVAR; |
a0d0e21e |
1533 | dSP; |
463ee0b2 |
1534 | |
924508f0 |
1535 | PUSHMARK(SP); |
1536 | EXTEND(SP, n); |
33c27489 |
1537 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 |
1538 | if (n > 1) { |
93965878 |
1539 | if (mg->mg_ptr) { |
565764a8 |
1540 | if (mg->mg_len >= 0) |
79cb57f6 |
1541 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 |
1542 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1543 | PUSHs((SV*)mg->mg_ptr); |
1544 | } |
14befaf4 |
1545 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 |
1546 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1547 | } |
1548 | } |
1549 | if (n > 2) { |
1550 | PUSHs(val); |
88e89b8a |
1551 | } |
463ee0b2 |
1552 | PUTBACK; |
1553 | |
864dbfa3 |
1554 | return call_method(meth, flags); |
946ec16e |
1555 | } |
1556 | |
76e3520e |
1557 | STATIC int |
e1ec3a88 |
1558 | S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth) |
a0d0e21e |
1559 | { |
27da23d5 |
1560 | dVAR; dSP; |
463ee0b2 |
1561 | |
a0d0e21e |
1562 | ENTER; |
1563 | SAVETMPS; |
e788e7d3 |
1564 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1565 | |
33c27489 |
1566 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1567 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1568 | } |
463ee0b2 |
1569 | |
d3acc0f7 |
1570 | POPSTACK; |
a0d0e21e |
1571 | FREETMPS; |
1572 | LEAVE; |
1573 | return 0; |
1574 | } |
463ee0b2 |
1575 | |
a0d0e21e |
1576 | int |
864dbfa3 |
1577 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1578 | { |
a0d0e21e |
1579 | if (mg->mg_ptr) |
1580 | mg->mg_flags |= MGf_GSKIP; |
58f82c5c |
1581 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 |
1582 | return 0; |
1583 | } |
1584 | |
1585 | int |
864dbfa3 |
1586 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d |
1587 | { |
27da23d5 |
1588 | dVAR; dSP; |
a60c0954 |
1589 | ENTER; |
e788e7d3 |
1590 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1591 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1592 | POPSTACK; |
a60c0954 |
1593 | LEAVE; |
463ee0b2 |
1594 | return 0; |
1595 | } |
1596 | |
1597 | int |
864dbfa3 |
1598 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1599 | { |
a0d0e21e |
1600 | return magic_methpack(sv,mg,"DELETE"); |
1601 | } |
463ee0b2 |
1602 | |
93965878 |
1603 | |
1604 | U32 |
864dbfa3 |
1605 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 |
1606 | { |
27da23d5 |
1607 | dVAR; dSP; |
93965878 |
1608 | U32 retval = 0; |
1609 | |
1610 | ENTER; |
1611 | SAVETMPS; |
e788e7d3 |
1612 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1613 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1614 | sv = *PL_stack_sp--; |
a60c0954 |
1615 | retval = (U32) SvIV(sv)-1; |
93965878 |
1616 | } |
d3acc0f7 |
1617 | POPSTACK; |
93965878 |
1618 | FREETMPS; |
1619 | LEAVE; |
1620 | return retval; |
1621 | } |
1622 | |
cea2e8a9 |
1623 | int |
1624 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1625 | { |
27da23d5 |
1626 | dVAR; dSP; |
463ee0b2 |
1627 | |
e336de0d |
1628 | ENTER; |
e788e7d3 |
1629 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1630 | PUSHMARK(SP); |
33c27489 |
1631 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1632 | PUTBACK; |
864dbfa3 |
1633 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1634 | POPSTACK; |
a60c0954 |
1635 | LEAVE; |
a3bcc51e |
1636 | |
463ee0b2 |
1637 | return 0; |
1638 | } |
1639 | |
1640 | int |
864dbfa3 |
1641 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1642 | { |
27da23d5 |
1643 | dVAR; dSP; |
35a4481c |
1644 | const char * const meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1645 | |
1646 | ENTER; |
a0d0e21e |
1647 | SAVETMPS; |
e788e7d3 |
1648 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1649 | PUSHMARK(SP); |
1650 | EXTEND(SP, 2); |
33c27489 |
1651 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1652 | if (SvOK(key)) |
1653 | PUSHs(key); |
1654 | PUTBACK; |
1655 | |
864dbfa3 |
1656 | if (call_method(meth, G_SCALAR)) |
3280af22 |
1657 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1658 | |
d3acc0f7 |
1659 | POPSTACK; |
a0d0e21e |
1660 | FREETMPS; |
1661 | LEAVE; |
79072805 |
1662 | return 0; |
1663 | } |
1664 | |
1665 | int |
864dbfa3 |
1666 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1667 | { |
1668 | return magic_methpack(sv,mg,"EXISTS"); |
ac27b0f5 |
1669 | } |
a0d0e21e |
1670 | |
a3bcc51e |
1671 | SV * |
1672 | Perl_magic_scalarpack(pTHX_ HV *hv, MAGIC *mg) |
1673 | { |
27da23d5 |
1674 | dVAR; dSP; |
a3bcc51e |
1675 | SV *retval = &PL_sv_undef; |
8772537c |
1676 | SV * const tied = SvTIED_obj((SV*)hv, mg); |
1677 | HV * const pkg = SvSTASH((SV*)SvRV(tied)); |
a3bcc51e |
1678 | |
1679 | if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) { |
1680 | SV *key; |
bfcb3514 |
1681 | if (HvEITER_get(hv)) |
a3bcc51e |
1682 | /* we are in an iteration so the hash cannot be empty */ |
1683 | return &PL_sv_yes; |
1684 | /* no xhv_eiter so now use FIRSTKEY */ |
1685 | key = sv_newmortal(); |
1686 | magic_nextpack((SV*)hv, mg, key); |
bfcb3514 |
1687 | HvEITER_set(hv, NULL); /* need to reset iterator */ |
a3bcc51e |
1688 | return SvOK(key) ? &PL_sv_yes : &PL_sv_no; |
1689 | } |
1690 | |
1691 | /* there is a SCALAR method that we can call */ |
1692 | ENTER; |
1693 | PUSHSTACKi(PERLSI_MAGIC); |
1694 | PUSHMARK(SP); |
1695 | EXTEND(SP, 1); |
1696 | PUSHs(tied); |
1697 | PUTBACK; |
1698 | |
1699 | if (call_method("SCALAR", G_SCALAR)) |
1700 | retval = *PL_stack_sp--; |
1701 | POPSTACK; |
1702 | LEAVE; |
1703 | return retval; |
1704 | } |
1705 | |
a0d0e21e |
1706 | int |
864dbfa3 |
1707 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1708 | { |
97aff369 |
1709 | dVAR; |
8772537c |
1710 | GV * const gv = PL_DBline; |
1711 | const I32 i = SvTRUE(sv); |
1712 | SV ** const svp = av_fetch(GvAV(gv), |
01b8bcb7 |
1713 | atoi(MgPV_nolen_const(mg)), FALSE); |
8772537c |
1714 | if (svp && SvIOKp(*svp)) { |
1715 | OP * const o = INT2PTR(OP*,SvIVX(*svp)); |
1716 | if (o) { |
1717 | /* set or clear breakpoint in the relevant control op */ |
1718 | if (i) |
1719 | o->op_flags |= OPf_SPECIAL; |
1720 | else |
1721 | o->op_flags &= ~OPf_SPECIAL; |
1722 | } |
5df8de69 |
1723 | } |
79072805 |
1724 | return 0; |
1725 | } |
1726 | |
1727 | int |
8772537c |
1728 | Perl_magic_getarylen(pTHX_ SV *sv, const MAGIC *mg) |
79072805 |
1729 | { |
97aff369 |
1730 | dVAR; |
8772537c |
1731 | const AV * const obj = (AV*)mg->mg_obj; |
83bf042f |
1732 | if (obj) { |
1733 | sv_setiv(sv, AvFILL(obj) + PL_curcop->cop_arybase); |
1734 | } else { |
1735 | SvOK_off(sv); |
1736 | } |
79072805 |
1737 | return 0; |
1738 | } |
1739 | |
1740 | int |
864dbfa3 |
1741 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1742 | { |
97aff369 |
1743 | dVAR; |
8772537c |
1744 | AV * const obj = (AV*)mg->mg_obj; |
83bf042f |
1745 | if (obj) { |
1746 | av_fill(obj, SvIV(sv) - PL_curcop->cop_arybase); |
1747 | } else { |
1748 | if (ckWARN(WARN_MISC)) |
1749 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
1750 | "Attempt to set length of freed array"); |
1751 | } |
1752 | return 0; |
1753 | } |
1754 | |
1755 | int |
1756 | Perl_magic_freearylen_p(pTHX_ SV *sv, MAGIC *mg) |
1757 | { |
97aff369 |
1758 | dVAR; |
53c1dcc0 |
1759 | PERL_UNUSED_ARG(sv); |
94f3782b |
1760 | /* during global destruction, mg_obj may already have been freed */ |
1761 | if (PL_in_clean_all) |
1ea47f64 |
1762 | return 0; |
94f3782b |
1763 | |
83bf042f |
1764 | mg = mg_find (mg->mg_obj, PERL_MAGIC_arylen); |
1765 | |
1766 | if (mg) { |
1767 | /* arylen scalar holds a pointer back to the array, but doesn't own a |
1768 | reference. Hence the we (the array) are about to go away with it |
1769 | still pointing at us. Clear its pointer, else it would be pointing |
1770 | at free memory. See the comment in sv_magic about reference loops, |
1771 | and why it can't own a reference to us. */ |
1772 | mg->mg_obj = 0; |
1773 | } |
a0d0e21e |
1774 | return 0; |
1775 | } |
1776 | |
1777 | int |
864dbfa3 |
1778 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1779 | { |
97aff369 |
1780 | dVAR; |
8772537c |
1781 | SV* const lsv = LvTARG(sv); |
ac27b0f5 |
1782 | |
a0d0e21e |
1783 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 |
1784 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 |
1785 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 |
1786 | I32 i = mg->mg_len; |
7e2040f0 |
1787 | if (DO_UTF8(lsv)) |
a0ed51b3 |
1788 | sv_pos_b2u(lsv, &i); |
1789 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1790 | return 0; |
1791 | } |
1792 | } |
0c34ef67 |
1793 | SvOK_off(sv); |
a0d0e21e |
1794 | return 0; |
1795 | } |
1796 | |
1797 | int |
864dbfa3 |
1798 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1799 | { |
97aff369 |
1800 | dVAR; |
8772537c |
1801 | SV* const lsv = LvTARG(sv); |
a0d0e21e |
1802 | SSize_t pos; |
1803 | STRLEN len; |
c00206c8 |
1804 | STRLEN ulen = 0; |
a0d0e21e |
1805 | |
1806 | mg = 0; |
ac27b0f5 |
1807 | |
a0d0e21e |
1808 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 |
1809 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1810 | if (!mg) { |
1811 | if (!SvOK(sv)) |
1812 | return 0; |
fabdb6c0 |
1813 | sv_magic(lsv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
14befaf4 |
1814 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1815 | } |
1816 | else if (!SvOK(sv)) { |
565764a8 |
1817 | mg->mg_len = -1; |
a0d0e21e |
1818 | return 0; |
1819 | } |
1820 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1821 | |
c485e607 |
1822 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1823 | |
7e2040f0 |
1824 | if (DO_UTF8(lsv)) { |
a0ed51b3 |
1825 | ulen = sv_len_utf8(lsv); |
1826 | if (ulen) |
1827 | len = ulen; |
a0ed51b3 |
1828 | } |
1829 | |
a0d0e21e |
1830 | if (pos < 0) { |
1831 | pos += len; |
1832 | if (pos < 0) |
1833 | pos = 0; |
1834 | } |
eb160463 |
1835 | else if (pos > (SSize_t)len) |
a0d0e21e |
1836 | pos = len; |
a0ed51b3 |
1837 | |
1838 | if (ulen) { |
1839 | I32 p = pos; |
1840 | sv_pos_u2b(lsv, &p, 0); |
1841 | pos = p; |
1842 | } |
727405f8 |
1843 | |
565764a8 |
1844 | mg->mg_len = pos; |
71be2cbc |
1845 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1846 | |
79072805 |
1847 | return 0; |
1848 | } |
1849 | |
1850 | int |
864dbfa3 |
1851 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1852 | { |
8772537c |
1853 | PERL_UNUSED_ARG(mg); |
8646b087 |
1854 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1855 | SvFAKE_off(sv); |
946ec16e |
1856 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1857 | SvFAKE_on(sv); |
1858 | } |
1859 | else |
946ec16e |
1860 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1861 | return 0; |
1862 | } |
1863 | |
1864 | int |
864dbfa3 |
1865 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1866 | { |
79072805 |
1867 | GV* gv; |
8772537c |
1868 | PERL_UNUSED_ARG(mg); |
1869 | |
79072805 |
1870 | if (!SvOK(sv)) |
1871 | return 0; |
f776e3cd |
1872 | gv = gv_fetchsv(sv, GV_ADD, SVt_PVGV); |
79072805 |
1873 | if (sv == (SV*)gv) |
1874 | return 0; |
1875 | if (GvGP(sv)) |
88e89b8a |
1876 | gp_free((GV*)sv); |
79072805 |
1877 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1878 | return 0; |
1879 | } |
1880 | |
1881 | int |
864dbfa3 |
1882 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1883 | { |
1884 | STRLEN len; |
35a4481c |
1885 | SV * const lsv = LvTARG(sv); |
b83604b4 |
1886 | const char * const tmps = SvPV_const(lsv,len); |
6ff81951 |
1887 | I32 offs = LvTARGOFF(sv); |
1888 | I32 rem = LvTARGLEN(sv); |
8772537c |
1889 | PERL_UNUSED_ARG(mg); |
6ff81951 |
1890 | |
9aa983d2 |
1891 | if (SvUTF8(lsv)) |
1892 | sv_pos_u2b(lsv, &offs, &rem); |
eb160463 |
1893 | if (offs > (I32)len) |
6ff81951 |
1894 | offs = len; |
eb160463 |
1895 | if (rem + offs > (I32)len) |
6ff81951 |
1896 | rem = len - offs; |
1897 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
9aa983d2 |
1898 | if (SvUTF8(lsv)) |
2ef4b674 |
1899 | SvUTF8_on(sv); |
6ff81951 |
1900 | return 0; |
1901 | } |
1902 | |
1903 | int |
864dbfa3 |
1904 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1905 | { |
97aff369 |
1906 | dVAR; |
9aa983d2 |
1907 | STRLEN len; |
b83604b4 |
1908 | const char *tmps = SvPV_const(sv, len); |
dd374669 |
1909 | SV * const lsv = LvTARG(sv); |
9aa983d2 |
1910 | I32 lvoff = LvTARGOFF(sv); |
1911 | I32 lvlen = LvTARGLEN(sv); |
8772537c |
1912 | PERL_UNUSED_ARG(mg); |
075a4a2b |
1913 | |
1aa99e6b |
1914 | if (DO_UTF8(sv)) { |
9aa983d2 |
1915 | sv_utf8_upgrade(lsv); |
1916 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
1917 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
b76f3ce2 |
1918 | LvTARGLEN(sv) = sv_len_utf8(sv); |
9aa983d2 |
1919 | SvUTF8_on(lsv); |
1920 | } |
9bf12eaf |
1921 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 |
1922 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
b76f3ce2 |
1923 | LvTARGLEN(sv) = len; |
e95af362 |
1924 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 |
1925 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1926 | Safefree(tmps); |
1aa99e6b |
1927 | } |
b76f3ce2 |
1928 | else { |
1929 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1930 | LvTARGLEN(sv) = len; |
1931 | } |
1932 | |
1aa99e6b |
1933 | |
79072805 |
1934 | return 0; |
1935 | } |
1936 | |
1937 | int |
864dbfa3 |
1938 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1939 | { |
97aff369 |
1940 | dVAR; |
8772537c |
1941 | PERL_UNUSED_ARG(sv); |
27cc343c |
1942 | TAINT_IF((PL_localizing != 1) && (mg->mg_len & 1)); |
463ee0b2 |
1943 | return 0; |
1944 | } |
1945 | |
1946 | int |
864dbfa3 |
1947 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1948 | { |
97aff369 |
1949 | dVAR; |
8772537c |
1950 | PERL_UNUSED_ARG(sv); |
0a9c116b |
1951 | /* update taint status unless we're restoring at scope exit */ |
1952 | if (PL_localizing != 2) { |
1953 | if (PL_tainted) |
1954 | mg->mg_len |= 1; |
1955 | else |
1956 | mg->mg_len &= ~1; |
1957 | } |
463ee0b2 |
1958 | return 0; |
1959 | } |
1960 | |
1961 | int |
864dbfa3 |
1962 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1963 | { |
35a4481c |
1964 | SV * const lsv = LvTARG(sv); |
8772537c |
1965 | PERL_UNUSED_ARG(mg); |
6ff81951 |
1966 | |
1967 | if (!lsv) { |
0c34ef67 |
1968 | SvOK_off(sv); |
6ff81951 |
1969 | return 0; |
1970 | } |
6ff81951 |
1971 | |
81e118e0 |
1972 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 |
1973 | return 0; |
1974 | } |
1975 | |
1976 | int |
864dbfa3 |
1977 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1978 | { |
8772537c |
1979 | PERL_UNUSED_ARG(mg); |
79072805 |
1980 | do_vecset(sv); /* XXX slurp this routine */ |
1981 | return 0; |
1982 | } |
1983 | |
1984 | int |
864dbfa3 |
1985 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc |
1986 | { |
97aff369 |
1987 | dVAR; |
71be2cbc |
1988 | SV *targ = Nullsv; |
5f05dabc |
1989 | if (LvTARGLEN(sv)) { |
68dc0745 |
1990 | if (mg->mg_obj) { |
8772537c |
1991 | SV * const ahv = LvTARG(sv); |
1992 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
6d822dc4 |
1993 | if (he) |
1994 | targ = HeVAL(he); |
68dc0745 |
1995 | } |
1996 | else { |
8772537c |
1997 | AV* const av = (AV*)LvTARG(sv); |
68dc0745 |
1998 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1999 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
2000 | } |
3280af22 |
2001 | if (targ && targ != &PL_sv_undef) { |
68dc0745 |
2002 | /* somebody else defined it for us */ |
2003 | SvREFCNT_dec(LvTARG(sv)); |
2004 | LvTARG(sv) = SvREFCNT_inc(targ); |
2005 | LvTARGLEN(sv) = 0; |
2006 | SvREFCNT_dec(mg->mg_obj); |
2007 | mg->mg_obj = Nullsv; |
2008 | mg->mg_flags &= ~MGf_REFCOUNTED; |
2009 | } |
5f05dabc |
2010 | } |
71be2cbc |
2011 | else |
2012 | targ = LvTARG(sv); |
3280af22 |
2013 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
2014 | return 0; |
2015 | } |
2016 | |
2017 | int |
864dbfa3 |
2018 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc |
2019 | { |
8772537c |
2020 | PERL_UNUSED_ARG(mg); |
71be2cbc |
2021 | if (LvTARGLEN(sv)) |
68dc0745 |
2022 | vivify_defelem(sv); |
2023 | if (LvTARG(sv)) { |
5f05dabc |
2024 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
2025 | SvSETMAGIC(LvTARG(sv)); |
2026 | } |
5f05dabc |
2027 | return 0; |
2028 | } |
2029 | |
71be2cbc |
2030 | void |
864dbfa3 |
2031 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc |
2032 | { |
97aff369 |
2033 | dVAR; |
74e13ce4 |
2034 | MAGIC *mg; |
2035 | SV *value = Nullsv; |
71be2cbc |
2036 | |
14befaf4 |
2037 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc |
2038 | return; |
68dc0745 |
2039 | if (mg->mg_obj) { |
8772537c |
2040 | SV * const ahv = LvTARG(sv); |
2041 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
6d822dc4 |
2042 | if (he) |
2043 | value = HeVAL(he); |
3280af22 |
2044 | if (!value || value == &PL_sv_undef) |
ce5030a2 |
2045 | Perl_croak(aTHX_ PL_no_helem_sv, mg->mg_obj); |
71be2cbc |
2046 | } |
68dc0745 |
2047 | else { |
8772537c |
2048 | AV* const av = (AV*)LvTARG(sv); |
5aabfad6 |
2049 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
2050 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
2051 | else { |
aec46f14 |
2052 | SV** const svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
2053 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 |
2054 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 |
2055 | } |
2056 | } |
3e3baf6d |
2057 | (void)SvREFCNT_inc(value); |
68dc0745 |
2058 | SvREFCNT_dec(LvTARG(sv)); |
2059 | LvTARG(sv) = value; |
71be2cbc |
2060 | LvTARGLEN(sv) = 0; |
68dc0745 |
2061 | SvREFCNT_dec(mg->mg_obj); |
2062 | mg->mg_obj = Nullsv; |
2063 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
2064 | } |
2065 | |
2066 | int |
864dbfa3 |
2067 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 |
2068 | { |
86f55936 |
2069 | return Perl_sv_kill_backrefs(aTHX_ sv, (AV*)mg->mg_obj); |
810b8aa5 |
2070 | } |
2071 | |
2072 | int |
864dbfa3 |
2073 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
2074 | { |
565764a8 |
2075 | mg->mg_len = -1; |
c6496cc7 |
2076 | SvSCREAM_off(sv); |
93a17b20 |
2077 | return 0; |
2078 | } |
2079 | |
2080 | int |
864dbfa3 |
2081 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
2082 | { |
8772537c |
2083 | PERL_UNUSED_ARG(mg); |
14befaf4 |
2084 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 |
2085 | SvVALID_off(sv); |
2086 | return 0; |
2087 | } |
2088 | |
2089 | int |
864dbfa3 |
2090 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff |
2091 | { |
8772537c |
2092 | PERL_UNUSED_ARG(mg); |
14befaf4 |
2093 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff |
2094 | SvCOMPILED_off(sv); |
2095 | return 0; |
2096 | } |
2097 | |
2098 | int |
864dbfa3 |
2099 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
2100 | { |
35a4481c |
2101 | const struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 |
2102 | |
2103 | if (uf && uf->uf_set) |
24f81a43 |
2104 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 |
2105 | return 0; |
2106 | } |
2107 | |
c277df42 |
2108 | int |
faf82a0b |
2109 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
2110 | { |
8772537c |
2111 | PERL_UNUSED_ARG(mg); |
faf82a0b |
2112 | sv_unmagic(sv, PERL_MAGIC_qr); |
2113 | return 0; |
2114 | } |
2115 | |
2116 | int |
864dbfa3 |
2117 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 |
2118 | { |
97aff369 |
2119 | dVAR; |
8772537c |
2120 | regexp * const re = (regexp *)mg->mg_obj; |
2121 | PERL_UNUSED_ARG(sv); |
2122 | |
c277df42 |
2123 | ReREFCNT_dec(re); |
2124 | return 0; |
2125 | } |
2126 | |
7a4c00b4 |
2127 | #ifdef USE_LOCALE_COLLATE |
79072805 |
2128 | int |
864dbfa3 |
2129 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 |
2130 | { |
2131 | /* |
838b5b74 |
2132 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 |
2133 | * and vanished with a faint plop. |
2134 | */ |
8772537c |
2135 | PERL_UNUSED_ARG(sv); |
7a4c00b4 |
2136 | if (mg->mg_ptr) { |
2137 | Safefree(mg->mg_ptr); |
2138 | mg->mg_ptr = NULL; |
565764a8 |
2139 | mg->mg_len = -1; |
7a4c00b4 |
2140 | } |
bbce6d69 |
2141 | return 0; |
2142 | } |
7a4c00b4 |
2143 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
2144 | |
7e8c5dac |
2145 | /* Just clear the UTF-8 cache data. */ |
2146 | int |
2147 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) |
2148 | { |
8772537c |
2149 | PERL_UNUSED_ARG(sv); |
7e8c5dac |
2150 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
2151 | mg->mg_ptr = 0; |
2152 | mg->mg_len = -1; /* The mg_len holds the len cache. */ |
2153 | return 0; |
2154 | } |
2155 | |
bbce6d69 |
2156 | int |
864dbfa3 |
2157 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
2158 | { |
97aff369 |
2159 | dVAR; |
e1ec3a88 |
2160 | register const char *s; |
79072805 |
2161 | I32 i; |
8990e307 |
2162 | STRLEN len; |
79072805 |
2163 | switch (*mg->mg_ptr) { |
748a9306 |
2164 | case '\001': /* ^A */ |
3280af22 |
2165 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
2166 | break; |
49460fe6 |
2167 | case '\003': /* ^C */ |
eb160463 |
2168 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 |
2169 | break; |
2170 | |
79072805 |
2171 | case '\004': /* ^D */ |
b4ab917c |
2172 | #ifdef DEBUGGING |
b83604b4 |
2173 | s = SvPV_nolen_const(sv); |
ddcf8bc1 |
2174 | PL_debug = get_debug_opts(&s, 0) | DEBUG_TOP_FLAG; |
79072805 |
2175 | DEBUG_x(dump_all()); |
b4ab917c |
2176 | #else |
2177 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
2178 | #endif |
79072805 |
2179 | break; |
28f23441 |
2180 | case '\005': /* ^E */ |
d0063567 |
2181 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 |
2182 | #ifdef MACOS_TRADITIONAL |
d0063567 |
2183 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 |
2184 | #else |
cd39f2b6 |
2185 | # ifdef VMS |
d0063567 |
2186 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf |
2187 | # else |
cd39f2b6 |
2188 | # ifdef WIN32 |
d0063567 |
2189 | SetLastError( SvIV(sv) ); |
cd39f2b6 |
2190 | # else |
9fed8b87 |
2191 | # ifdef OS2 |
d0063567 |
2192 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 |
2193 | # else |
d0063567 |
2194 | /* will anyone ever use this? */ |
2195 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
cd39f2b6 |
2196 | # endif |
048c1ddf |
2197 | # endif |
2198 | # endif |
22fae026 |
2199 | #endif |
d0063567 |
2200 | } |
2201 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { |
2202 | if (PL_encoding) |
2203 | SvREFCNT_dec(PL_encoding); |
2204 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
2205 | PL_encoding = newSVsv(sv); |
2206 | } |
2207 | else { |
2208 | PL_encoding = Nullsv; |
2209 | } |
2210 | } |
2211 | break; |
79072805 |
2212 | case '\006': /* ^F */ |
3280af22 |
2213 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
2214 | break; |
a0d0e21e |
2215 | case '\010': /* ^H */ |
3280af22 |
2216 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
2217 | break; |
9d116dd7 |
2218 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
43c5f42d |
2219 | Safefree(PL_inplace); |
2220 | PL_inplace = SvOK(sv) ? savesvpv(sv) : Nullch; |
da78da6e |
2221 | break; |
28f23441 |
2222 | case '\017': /* ^O */ |
ac27b0f5 |
2223 | if (*(mg->mg_ptr+1) == '\0') { |
43c5f42d |
2224 | Safefree(PL_osname); |
2225 | PL_osname = Nullch; |
3511154c |
2226 | if (SvOK(sv)) { |
2227 | TAINT_PROPER("assigning to $^O"); |
2e0de35c |
2228 | PL_osname = savesvpv(sv); |
3511154c |
2229 | } |
ac27b0f5 |
2230 | } |
2231 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
2232 | if (!PL_compiling.cop_io) |
2233 | PL_compiling.cop_io = newSVsv(sv); |
2234 | else |
2235 | sv_setsv(PL_compiling.cop_io,sv); |
2236 | } |
28f23441 |
2237 | break; |
79072805 |
2238 | case '\020': /* ^P */ |
3280af22 |
2239 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
f2a7f298 |
2240 | if (PL_perldb && !PL_DBsingle) |
1ee4443e |
2241 | init_debugger(); |
79072805 |
2242 | break; |
2243 | case '\024': /* ^T */ |
88e89b8a |
2244 | #ifdef BIG_TIME |
6b88bc9c |
2245 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
2246 | #else |
3280af22 |
2247 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
2248 | #endif |
79072805 |
2249 | break; |
fde18df1 |
2250 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 |
2251 | if (*(mg->mg_ptr+1) == '\0') { |
2252 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
2253 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
ac27b0f5 |
2254 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 |
2255 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 |
2256 | } |
599cee73 |
2257 | } |
0a378802 |
2258 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 |
2259 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e |
2260 | if (!SvPOK(sv) && PL_localizing) { |
2261 | sv_setpvn(sv, WARN_NONEstring, WARNsize); |
d3a7d8c7 |
2262 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e |
2263 | break; |
2264 | } |
f4fc7782 |
2265 | { |
b5477537 |
2266 | STRLEN len, i; |
d3a7d8c7 |
2267 | int accumulate = 0 ; |
f4fc7782 |
2268 | int any_fatals = 0 ; |
b83604b4 |
2269 | const char * const ptr = SvPV_const(sv, len) ; |
f4fc7782 |
2270 | for (i = 0 ; i < len ; ++i) { |
2271 | accumulate |= ptr[i] ; |
2272 | any_fatals |= (ptr[i] & 0xAA) ; |
2273 | } |
d3a7d8c7 |
2274 | if (!accumulate) |
2275 | PL_compiling.cop_warnings = pWARN_NONE; |
f4fc7782 |
2276 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2277 | PL_compiling.cop_warnings = pWARN_ALL; |
2278 | PL_dowarn |= G_WARN_ONCE ; |
727405f8 |
2279 | } |
d3a7d8c7 |
2280 | else { |
2281 | if (specialWARN(PL_compiling.cop_warnings)) |
2282 | PL_compiling.cop_warnings = newSVsv(sv) ; |
2283 | else |
2284 | sv_setsv(PL_compiling.cop_warnings, sv); |
2285 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) |
2286 | PL_dowarn |= G_WARN_ONCE ; |
2287 | } |
f4fc7782 |
2288 | |
d3a7d8c7 |
2289 | } |
4438c4b7 |
2290 | } |
971a9dd3 |
2291 | } |
79072805 |
2292 | break; |
2293 | case '.': |
3280af22 |
2294 | if (PL_localizing) { |
2295 | if (PL_localizing == 1) |
7766f137 |
2296 | SAVESPTR(PL_last_in_gv); |
748a9306 |
2297 | } |
3280af22 |
2298 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 |
2299 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 |
2300 | break; |
2301 | case '^': |
3280af22 |
2302 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 |
2303 | s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
f776e3cd |
2304 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO); |
79072805 |
2305 | break; |
2306 | case '~': |
3280af22 |
2307 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 |
2308 | s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
f776e3cd |
2309 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO); |
79072805 |
2310 | break; |
2311 | case '=': |
632db599 |
2312 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2313 | break; |
2314 | case '-': |
632db599 |
2315 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 |
2316 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2317 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
2318 | break; |
2319 | case '%': |
632db599 |
2320 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2321 | break; |
2322 | case '|': |
4b65379b |
2323 | { |
8772537c |
2324 | IO * const io = GvIOp(PL_defoutgv); |
720f287d |
2325 | if(!io) |
2326 | break; |
4b65379b |
2327 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2328 | IoFLAGS(io) &= ~IOf_FLUSH; |
2329 | else { |
2330 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
2331 | PerlIO *ofp = IoOFP(io); |
2332 | if (ofp) |
2333 | (void)PerlIO_flush(ofp); |
2334 | IoFLAGS(io) |= IOf_FLUSH; |
2335 | } |
2336 | } |
79072805 |
2337 | } |
2338 | break; |
79072805 |
2339 | case '/': |
3280af22 |
2340 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 |
2341 | PL_rs = newSVsv(sv); |
79072805 |
2342 | break; |
2343 | case '\\': |
7889fe52 |
2344 | if (PL_ors_sv) |
2345 | SvREFCNT_dec(PL_ors_sv); |
009c130f |
2346 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 |
2347 | PL_ors_sv = newSVsv(sv); |
009c130f |
2348 | } |
e3c19b7b |
2349 | else { |
7889fe52 |
2350 | PL_ors_sv = Nullsv; |
e3c19b7b |
2351 | } |
79072805 |
2352 | break; |
2353 | case ',': |
7889fe52 |
2354 | if (PL_ofs_sv) |
2355 | SvREFCNT_dec(PL_ofs_sv); |
2356 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
2357 | PL_ofs_sv = newSVsv(sv); |
2358 | } |
2359 | else { |
2360 | PL_ofs_sv = Nullsv; |
2361 | } |
79072805 |
2362 | break; |
79072805 |
2363 | case '[': |
3280af22 |
2364 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
2365 | break; |
2366 | case '?': |
ff0cee69 |
2367 | #ifdef COMPLEX_STATUS |
6b88bc9c |
2368 | if (PL_localizing == 2) { |
2369 | PL_statusvalue = LvTARGOFF(sv); |
2370 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
2371 | } |
2372 | else |
2373 | #endif |
2374 | #ifdef VMSISH_STATUS |
2375 | if (VMSISH_STATUS) |
fb38d079 |
2376 | STATUS_NATIVE_CHILD_SET((U32)SvIV(sv)); |
ff0cee69 |
2377 | else |
2378 | #endif |
fb38d079 |
2379 | STATUS_UNIX_EXIT_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2380 | break; |
2381 | case '!': |
93189314 |
2382 | { |
2383 | #ifdef VMS |
2384 | # define PERL_VMS_BANG vaxc$errno |
2385 | #else |
2386 | # define PERL_VMS_BANG 0 |
2387 | #endif |
91487cfc |
2388 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 |
2389 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2390 | } |
79072805 |
2391 | break; |
2392 | case '<': |
3280af22 |
2393 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2394 | if (PL_delaymagic) { |
2395 | PL_delaymagic |= DM_RUID; |
79072805 |
2396 | break; /* don't do magic till later */ |
2397 | } |
2398 | #ifdef HAS_SETRUID |
b28d0864 |
2399 | (void)setruid((Uid_t)PL_uid); |
79072805 |
2400 | #else |
2401 | #ifdef HAS_SETREUID |
3280af22 |
2402 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
2403 | #else |
85e6fe83 |
2404 | #ifdef HAS_SETRESUID |
b28d0864 |
2405 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
2406 | #else |
75870ed3 |
2407 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2408 | #ifdef PERL_DARWIN |
2409 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ |
2410 | if (PL_uid != 0 && PerlProc_getuid() == 0) |
2411 | (void)PerlProc_setuid(0); |
2412 | #endif |
b28d0864 |
2413 | (void)PerlProc_setuid(PL_uid); |
75870ed3 |
2414 | } else { |
d8eceb89 |
2415 | PL_uid = PerlProc_getuid(); |
cea2e8a9 |
2416 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e |
2417 | } |
79072805 |
2418 | #endif |
2419 | #endif |
85e6fe83 |
2420 | #endif |
d8eceb89 |
2421 | PL_uid = PerlProc_getuid(); |
3280af22 |
2422 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2423 | break; |
2424 | case '>': |
3280af22 |
2425 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2426 | if (PL_delaymagic) { |
2427 | PL_delaymagic |= DM_EUID; |
79072805 |
2428 | break; /* don't do magic till later */ |
2429 | } |
2430 | #ifdef HAS_SETEUID |
3280af22 |
2431 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
2432 | #else |
2433 | #ifdef HAS_SETREUID |
b28d0864 |
2434 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
2435 | #else |
2436 | #ifdef HAS_SETRESUID |
6b88bc9c |
2437 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
2438 | #else |
b28d0864 |
2439 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2440 | PerlProc_setuid(PL_euid); |
a0d0e21e |
2441 | else { |
e8ee3774 |
2442 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 |
2443 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e |
2444 | } |
79072805 |
2445 | #endif |
2446 | #endif |
85e6fe83 |
2447 | #endif |
d8eceb89 |
2448 | PL_euid = PerlProc_geteuid(); |
3280af22 |
2449 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2450 | break; |
2451 | case '(': |
3280af22 |
2452 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2453 | if (PL_delaymagic) { |
2454 | PL_delaymagic |= DM_RGID; |
79072805 |
2455 | break; /* don't do magic till later */ |
2456 | } |
2457 | #ifdef HAS_SETRGID |
b28d0864 |
2458 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
2459 | #else |
2460 | #ifdef HAS_SETREGID |
3280af22 |
2461 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
2462 | #else |
2463 | #ifdef HAS_SETRESGID |
b28d0864 |
2464 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
2465 | #else |
b28d0864 |
2466 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2467 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
2468 | else { |
d8eceb89 |
2469 | PL_gid = PerlProc_getgid(); |
cea2e8a9 |
2470 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 |
2471 | } |
79072805 |
2472 | #endif |
2473 | #endif |
85e6fe83 |
2474 | #endif |
d8eceb89 |
2475 | PL_gid = PerlProc_getgid(); |
3280af22 |
2476 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2477 | break; |
2478 | case ')': |
5cd24f17 |
2479 | #ifdef HAS_SETGROUPS |
2480 | { |
b83604b4 |
2481 | const char *p = SvPV_const(sv, len); |
757f63d8 |
2482 | Groups_t *gary = NULL; |
2483 | |
2484 | while (isSPACE(*p)) |
2485 | ++p; |
2486 | PL_egid = Atol(p); |
2487 | for (i = 0; i < NGROUPS; ++i) { |
2488 | while (*p && !isSPACE(*p)) |
2489 | ++p; |
2490 | while (isSPACE(*p)) |
2491 | ++p; |
2492 | if (!*p) |
2493 | break; |
2494 | if(!gary) |
2495 | Newx(gary, i + 1, Groups_t); |
2496 | else |
2497 | Renew(gary, i + 1, Groups_t); |
2498 | gary[i] = Atol(p); |
2499 | } |
2500 | if (i) |
2501 | (void)setgroups(i, gary); |
2502 | if (gary) |
2503 | Safefree(gary); |
5cd24f17 |
2504 | } |
2505 | #else /* HAS_SETGROUPS */ |
b28d0864 |
2506 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
2507 | #endif /* HAS_SETGROUPS */ |
3280af22 |
2508 | if (PL_delaymagic) { |
2509 | PL_delaymagic |= DM_EGID; |
79072805 |
2510 | break; /* don't do magic till later */ |
2511 | } |
2512 | #ifdef HAS_SETEGID |
3280af22 |
2513 | (void)setegid((Gid_t)PL_egid); |
79072805 |
2514 | #else |
2515 | #ifdef HAS_SETREGID |
b28d0864 |
2516 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
2517 | #else |
2518 | #ifdef HAS_SETRESGID |
b28d0864 |
2519 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
2520 | #else |
b28d0864 |
2521 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2522 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
2523 | else { |
d8eceb89 |
2524 | PL_egid = PerlProc_getegid(); |
cea2e8a9 |
2525 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 |
2526 | } |
79072805 |
2527 | #endif |
2528 | #endif |
85e6fe83 |
2529 | #endif |
d8eceb89 |
2530 | PL_egid = PerlProc_getegid(); |
3280af22 |
2531 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2532 | break; |
2533 | case ':': |
2d8e6c8d |
2534 | PL_chopset = SvPV_force(sv,len); |
79072805 |
2535 | break; |
cd39f2b6 |
2536 | #ifndef MACOS_TRADITIONAL |
79072805 |
2537 | case '0': |
e2975953 |
2538 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 |
2539 | #ifdef HAS_SETPROCTITLE |
2540 | /* The BSDs don't show the argv[] in ps(1) output, they |
2541 | * show a string from the process struct and provide |
2542 | * the setproctitle() routine to manipulate that. */ |
2543 | { |
b83604b4 |
2544 | s = SvPV_const(sv, len); |
98b76f99 |
2545 | # if __FreeBSD_version > 410001 |
9aad2c0e |
2546 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 |
2547 | * but not the "(perl) suffix from the ps(1) |
2548 | * output, because that's what ps(1) shows if the |
2549 | * argv[] is modified. */ |
6f2ad931 |
2550 | setproctitle("-%s", s); |
9aad2c0e |
2551 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 |
2552 | /* This doesn't really work if you assume that |
2553 | * $0 = 'foobar'; will wipe out 'perl' from the $0 |
2554 | * because in ps(1) output the result will be like |
2555 | * sprintf("perl: %s (perl)", s) |
2556 | * I guess this is a security feature: |
2557 | * one (a user process) cannot get rid of the original name. |
2558 | * --jhi */ |
2559 | setproctitle("%s", s); |
2560 | # endif |
2561 | } |
2562 | #endif |
17aa7f3d |
2563 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2564 | { |
2565 | union pstun un; |
b83604b4 |
2566 | s = SvPV_const(sv, len); |
6867be6d |
2567 | un.pst_command = (char *)s; |
17aa7f3d |
2568 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2569 | } |
2570 | #endif |
3cb9023d |
2571 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e |
2572 | s = SvPV_force(sv,len); |
6f698202 |
2573 | if (len >= (STRLEN)PL_origalen-1) { |
2574 | /* Longer than original, will be truncated. We assume that |
2575 | * PL_origalen bytes are available. */ |
2576 | Copy(s, PL_origargv[0], PL_origalen-1, char); |
79072805 |
2577 | } |
2578 | else { |
54bfe034 |
2579 | /* Shorter than original, will be padded. */ |
2580 | Copy(s, PL_origargv[0], len, char); |
2581 | PL_origargv[0][len] = 0; |
2582 | memset(PL_origargv[0] + len + 1, |
2583 | /* Is the space counterintuitive? Yes. |
2584 | * (You were expecting \0?) |
3cb9023d |
2585 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 |
2586 | * --jhi */ |
2587 | (int)' ', |
2588 | PL_origalen - len - 1); |
79072805 |
2589 | } |
ad7eccf4 |
2590 | PL_origargv[0][PL_origalen-1] = 0; |
2591 | for (i = 1; i < PL_origargc; i++) |
2592 | PL_origargv[i] = 0; |
e2975953 |
2593 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 |
2594 | break; |
cd39f2b6 |
2595 | #endif |
79072805 |
2596 | } |
2597 | return 0; |
2598 | } |
2599 | |
2600 | I32 |
35a4481c |
2601 | Perl_whichsig(pTHX_ const char *sig) |
79072805 |
2602 | { |
aadb217d |
2603 | register char* const* sigv; |
79072805 |
2604 | |
aadb217d |
2605 | for (sigv = (char* const*)PL_sig_name; *sigv; sigv++) |
79072805 |
2606 | if (strEQ(sig,*sigv)) |
aadb217d |
2607 | return PL_sig_num[sigv - (char* const*)PL_sig_name]; |
79072805 |
2608 | #ifdef SIGCLD |
2609 | if (strEQ(sig,"CHLD")) |
2610 | return SIGCLD; |
2611 | #endif |
2612 | #ifdef SIGCHLD |
2613 | if (strEQ(sig,"CLD")) |
2614 | return SIGCHLD; |
2615 | #endif |
7f1236c0 |
2616 | return -1; |
79072805 |
2617 | } |
2618 | |
ecfc5424 |
2619 | Signal_t |
1e82f5a6 |
2620 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
8aad04aa |
2621 | Perl_sighandler(int sig, ...) |
1e82f5a6 |
2622 | #else |
2623 | Perl_sighandler(int sig) |
2624 | #endif |
79072805 |
2625 | { |
1018e26f |
2626 | #ifdef PERL_GET_SIG_CONTEXT |
2627 | dTHXa(PERL_GET_SIG_CONTEXT); |
71d280e3 |
2628 | #else |
cea2e8a9 |
2629 | dTHX; |
71d280e3 |
2630 | #endif |
79072805 |
2631 | dSP; |
00d579c5 |
2632 | GV *gv = Nullgv; |
8772537c |
2633 | SV *sv = Nullsv; |
2634 | SV * const tSv = PL_Sv; |
00d579c5 |
2635 | CV *cv = Nullcv; |
533c011a |
2636 | OP *myop = PL_op; |
84902520 |
2637 | U32 flags = 0; |
8772537c |
2638 | XPV * const tXpv = PL_Xpv; |
71d280e3 |
2639 | |
3280af22 |
2640 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2641 | flags |= 1; |
3280af22 |
2642 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2643 | flags |= 4; |
3280af22 |
2644 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2645 | flags |= 16; |
2646 | |
727405f8 |
2647 | if (!PL_psig_ptr[sig]) { |
99ef548b |
2648 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 |
2649 | PL_sig_name[sig]); |
2650 | exit(sig); |
2651 | } |
ff0cee69 |
2652 | |
84902520 |
2653 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2654 | infinity, so we fix 4 (in fact 5): */ |
2655 | if (flags & 1) { |
3280af22 |
2656 | PL_savestack_ix += 5; /* Protect save in progress. */ |
8772537c |
2657 | SAVEDESTRUCTOR_X(S_unwind_handler_stack, (void*)&flags); |
84902520 |
2658 | } |
ac27b0f5 |
2659 | if (flags & 4) |
3280af22 |
2660 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2661 | if (flags & 16) |
3280af22 |
2662 | PL_scopestack_ix += 1; |
84902520 |
2663 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 |
2664 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
8772537c |
2665 | || SvTYPE(cv) != SVt_PVCV) { |
2666 | HV *st; |
f2c0649b |
2667 | cv = sv_2cv(PL_psig_ptr[sig], &st, &gv, GV_ADD); |
8772537c |
2668 | } |
84902520 |
2669 | |
a0d0e21e |
2670 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2671 | if (ckWARN(WARN_SIGNAL)) |
9014280d |
2672 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c |
2673 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 |
2674 | : ((cv && CvGV(cv)) |
2675 | ? GvENAME(CvGV(cv)) |
2676 | : "__ANON__"))); |
2677 | goto cleanup; |
79072805 |
2678 | } |
2679 | |
22c35a8c |
2680 | if(PL_psig_name[sig]) { |
2681 | sv = SvREFCNT_inc(PL_psig_name[sig]); |
84902520 |
2682 | flags |= 64; |
df3728a2 |
2683 | #if !defined(PERL_IMPLICIT_CONTEXT) |
27da23d5 |
2684 | PL_sig_sv = sv; |
df3728a2 |
2685 | #endif |
84902520 |
2686 | } else { |
ff0cee69 |
2687 | sv = sv_newmortal(); |
22c35a8c |
2688 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a |
2689 | } |
e336de0d |
2690 | |
e788e7d3 |
2691 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2692 | PUSHMARK(SP); |
79072805 |
2693 | PUSHs(sv); |
8aad04aa |
2694 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
2695 | { |
2696 | struct sigaction oact; |
2697 | |
2698 | if (sigaction(sig, 0, &oact) == 0 && oact.sa_flags & SA_SIGINFO) { |
2699 | siginfo_t *sip; |
2700 | va_list args; |
2701 | |
2702 | va_start(args, sig); |
2703 | sip = (siginfo_t*)va_arg(args, siginfo_t*); |
2704 | if (sip) { |
2705 | HV *sih = newHV(); |
2706 | SV *rv = newRV_noinc((SV*)sih); |
2707 | /* The siginfo fields signo, code, errno, pid, uid, |
2708 | * addr, status, and band are defined by POSIX/SUSv3. */ |
2709 | hv_store(sih, "signo", 5, newSViv(sip->si_signo), 0); |
2710 | hv_store(sih, "code", 4, newSViv(sip->si_code), 0); |
79dec0f4 |
2711 | #if 0 /* XXX TODO: Configure scan for the existence of these, but even that does not help if the SA_SIGINFO is not implemented according to the spec. */ |
ea1bde16 |
2712 | hv_store(sih, "errno", 5, newSViv(sip->si_errno), 0); |
79dec0f4 |
2713 | hv_store(sih, "status", 6, newSViv(sip->si_status), 0); |
8aad04aa |
2714 | hv_store(sih, "uid", 3, newSViv(sip->si_uid), 0); |
2715 | hv_store(sih, "pid", 3, newSViv(sip->si_pid), 0); |
2716 | hv_store(sih, "addr", 4, newSVuv(PTR2UV(sip->si_addr)), 0); |
8aad04aa |
2717 | hv_store(sih, "band", 4, newSViv(sip->si_band), 0); |
79dec0f4 |
2718 | #endif |
8aad04aa |
2719 | EXTEND(SP, 2); |
2720 | PUSHs((SV*)rv); |
2721 | PUSHs(newSVpv((void*)sip, sizeof(*sip))); |
2722 | } |
b4552a27 |
2723 | |
31427afe |
2724 | va_end(args); |
8aad04aa |
2725 | } |
2726 | } |
2727 | #endif |
79072805 |
2728 | PUTBACK; |
a0d0e21e |
2729 | |
1b266415 |
2730 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 |
2731 | |
d3acc0f7 |
2732 | POPSTACK; |
1b266415 |
2733 | if (SvTRUE(ERRSV)) { |
1d615522 |
2734 | #ifndef PERL_MICRO |
983dbef6 |
2735 | #ifdef HAS_SIGPROCMASK |
1b266415 |
2736 | /* Handler "died", for example to get out of a restart-able read(). |
2737 | * Before we re-do that on its behalf re-enable the signal which was |
2738 | * blocked by the system when we entered. |
2739 | */ |
2740 | sigset_t set; |
2741 | sigemptyset(&set); |
2742 | sigaddset(&set,sig); |
2743 | sigprocmask(SIG_UNBLOCK, &set, NULL); |
2744 | #else |
2745 | /* Not clear if this will work */ |
2746 | (void)rsignal(sig, SIG_IGN); |
5c1546dc |
2747 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 |
2748 | #endif |
1d615522 |
2749 | #endif /* !PERL_MICRO */ |
c3bdd826 |
2750 | Perl_die(aTHX_ Nullch); |
1b266415 |
2751 | } |
00d579c5 |
2752 | cleanup: |
84902520 |
2753 | if (flags & 1) |
3280af22 |
2754 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 |
2755 | if (flags & 4) |
3280af22 |
2756 | PL_markstack_ptr--; |
84902520 |
2757 | if (flags & 16) |
3280af22 |
2758 | PL_scopestack_ix -= 1; |
84902520 |
2759 | if (flags & 64) |
2760 | SvREFCNT_dec(sv); |
533c011a |
2761 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 |
2762 | |
3280af22 |
2763 | PL_Sv = tSv; /* Restore global temporaries. */ |
2764 | PL_Xpv = tXpv; |
53bb94e2 |
2765 | return; |
79072805 |
2766 | } |
4e35701f |
2767 | |
2768 | |
51371543 |
2769 | static void |
8772537c |
2770 | S_restore_magic(pTHX_ const void *p) |
51371543 |
2771 | { |
97aff369 |
2772 | dVAR; |
8772537c |
2773 | MGS* const mgs = SSPTR(PTR2IV(p), MGS*); |
2774 | SV* const sv = mgs->mgs_sv; |
51371543 |
2775 | |
2776 | if (!sv) |
2777 | return; |
2778 | |
2779 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
2780 | { |
f8c7b90f |
2781 | #ifdef PERL_OLD_COPY_ON_WRITE |
f9701176 |
2782 | /* While magic was saved (and off) sv_setsv may well have seen |
2783 | this SV as a prime candidate for COW. */ |
2784 | if (SvIsCOW(sv)) |
e424a81e |
2785 | sv_force_normal_flags(sv, 0); |
f9701176 |
2786 | #endif |
2787 | |
51371543 |
2788 | if (mgs->mgs_flags) |
2789 | SvFLAGS(sv) |= mgs->mgs_flags; |
2790 | else |
2791 | mg_magical(sv); |
2b77b520 |
2792 | if (SvGMAGICAL(sv)) { |
2793 | /* downgrade public flags to private, |
2794 | and discard any other private flags */ |
2795 | |
2796 | U32 public = SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK); |
2797 | if (public) { |
2798 | SvFLAGS(sv) &= ~( public | SVp_IOK|SVp_NOK|SVp_POK ); |
2799 | SvFLAGS(sv) |= ( public << PRIVSHIFT ); |
2800 | } |
2801 | } |
51371543 |
2802 | } |
2803 | |
2804 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ |
2805 | |
2806 | /* If we're still on top of the stack, pop us off. (That condition |
2807 | * will be satisfied if restore_magic was called explicitly, but *not* |
2808 | * if it's being called via leave_scope.) |
2809 | * The reason for doing this is that otherwise, things like sv_2cv() |
2810 | * may leave alloc gunk on the savestack, and some code |
2811 | * (e.g. sighandler) doesn't expect that... |
2812 | */ |
2813 | if (PL_savestack_ix == mgs->mgs_ss_ix) |
2814 | { |
2815 | I32 popval = SSPOPINT; |
c76ac1ee |
2816 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 |
2817 | PL_savestack_ix -= 2; |
2818 | popval = SSPOPINT; |
2819 | assert(popval == SAVEt_ALLOC); |
2820 | popval = SSPOPINT; |
2821 | PL_savestack_ix -= popval; |
2822 | } |
2823 | |
2824 | } |
2825 | |
2826 | static void |
8772537c |
2827 | S_unwind_handler_stack(pTHX_ const void *p) |
51371543 |
2828 | { |
27da23d5 |
2829 | dVAR; |
e1ec3a88 |
2830 | const U32 flags = *(const U32*)p; |
51371543 |
2831 | |
2832 | if (flags & 1) |
2833 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
df3728a2 |
2834 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 |
2835 | if (flags & 64) |
27da23d5 |
2836 | SvREFCNT_dec(PL_sig_sv); |
df3728a2 |
2837 | #endif |
51371543 |
2838 | } |
1018e26f |
2839 | |
66610fdd |
2840 | /* |
2841 | * Local variables: |
2842 | * c-indentation-style: bsd |
2843 | * c-basic-offset: 4 |
2844 | * indent-tabs-mode: t |
2845 | * End: |
2846 | * |
37442d52 |
2847 | * ex: set ts=8 sts=4 sw=4 noet: |
2848 | */ |