Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
cbdf9ef8 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others |
79072805 LW |
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 LW |
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 LW |
14 | */ |
15 | ||
ccfc67b7 JH |
16 | /* |
17 | =head1 Magical Functions | |
166f8a29 DM |
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 DM |
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 DM |
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 JH |
36 | */ |
37 | ||
79072805 | 38 | #include "EXTERN.h" |
864dbfa3 | 39 | #define PERL_IN_MG_C |
79072805 LW |
40 | #include "perl.h" |
41 | ||
5cd24f17 | 42 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
43 | # ifndef NGROUPS |
44 | # define NGROUPS 32 | |
45 | # endif | |
b7953727 JH |
46 | # ifdef I_GRP |
47 | # include <grp.h> | |
48 | # endif | |
188ea221 CS |
49 | #endif |
50 | ||
17aa7f3d JH |
51 | #ifdef __hpux |
52 | # include <sys/pstat.h> | |
53 | #endif | |
54 | ||
e69880a5 CB |
55 | Signal_t Perl_csighandler(int sig); |
56 | ||
35a4481c AL |
57 | static void restore_magic(pTHX_ const void *p); |
58 | static void unwind_handler_stack(pTHX_ const void *p); | |
51371543 | 59 | |
9cffb111 OS |
60 | #ifdef __Lynx__ |
61 | /* Missing protos on LynxOS */ | |
62 | void setruid(uid_t id); | |
63 | void seteuid(uid_t id); | |
64 | void setrgid(uid_t id); | |
65 | void setegid(uid_t id); | |
66 | #endif | |
67 | ||
c07a80fd | 68 | /* |
69 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
70 | */ | |
71 | ||
72 | struct magic_state { | |
73 | SV* mgs_sv; | |
74 | U32 mgs_flags; | |
455ece5e | 75 | I32 mgs_ss_ix; |
c07a80fd | 76 | }; |
455ece5e | 77 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
78 | |
79 | STATIC void | |
8fb26106 | 80 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 81 | { |
455ece5e | 82 | MGS* mgs; |
c07a80fd | 83 | assert(SvMAGICAL(sv)); |
f8c7b90f | 84 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d NC |
85 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ |
86 | if (SvIsCOW(sv)) | |
87 | sv_force_normal(sv); | |
88 | #endif | |
c07a80fd | 89 | |
685f876f | 90 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
91 | |
92 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 93 | mgs->mgs_sv = sv; |
94 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 95 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 96 | |
97 | SvMAGICAL_off(sv); | |
98 | SvREADONLY_off(sv); | |
06759ea0 | 99 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 100 | } |
101 | ||
954c1994 GS |
102 | /* |
103 | =for apidoc mg_magical | |
104 | ||
105 | Turns on the magical status of an SV. See C<sv_magic>. | |
106 | ||
107 | =cut | |
108 | */ | |
109 | ||
8990e307 | 110 | void |
864dbfa3 | 111 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 | 112 | { |
e1ec3a88 | 113 | const MAGIC* mg; |
8990e307 | 114 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 115 | const MGVTBL* const vtbl = mg->mg_virtual; |
8990e307 | 116 | if (vtbl) { |
2b260de0 | 117 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
118 | SvGMAGICAL_on(sv); |
119 | if (vtbl->svt_set) | |
120 | SvSMAGICAL_on(sv); | |
2b260de0 | 121 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
122 | SvRMAGICAL_on(sv); |
123 | } | |
124 | } | |
125 | } | |
126 | ||
954c1994 GS |
127 | /* |
128 | =for apidoc mg_get | |
129 | ||
130 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
131 | ||
132 | =cut | |
133 | */ | |
134 | ||
79072805 | 135 | int |
864dbfa3 | 136 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 137 | { |
35a4481c | 138 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
fe2774ed | 139 | const bool was_temp = (bool)SvTEMP(sv); |
0723351e | 140 | int have_new = 0; |
ff76feab | 141 | MAGIC *newmg, *head, *cur, *mg; |
20135930 | 142 | /* guard against sv having being freed midway by holding a private |
6683b158 NC |
143 | reference. */ |
144 | ||
145 | /* sv_2mortal has this side effect of turning on the TEMP flag, which can | |
146 | cause the SV's buffer to get stolen (and maybe other stuff). | |
147 | So restore it. | |
148 | */ | |
149 | sv_2mortal(SvREFCNT_inc(sv)); | |
150 | if (!was_temp) { | |
151 | SvTEMP_off(sv); | |
152 | } | |
153 | ||
455ece5e | 154 | save_magic(mgs_ix, sv); |
463ee0b2 | 155 | |
ff76feab AMS |
156 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
157 | list of magic. svt_get() may delete the current entry, add new | |
158 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
159 | ||
160 | newmg = cur = head = mg = SvMAGIC(sv); | |
161 | while (mg) { | |
35a4481c | 162 | const MGVTBL * const vtbl = mg->mg_virtual; |
ff76feab | 163 | |
2b260de0 | 164 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 165 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 | 166 | |
58f82c5c DM |
167 | /* guard against magic having been deleted - eg FETCH calling |
168 | * untie */ | |
169 | if (!SvMAGIC(sv)) | |
170 | break; | |
b77f7d40 | 171 | |
ff76feab AMS |
172 | /* Don't restore the flags for this entry if it was deleted. */ |
173 | if (mg->mg_flags & MGf_GSKIP) | |
174 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 175 | } |
ff76feab AMS |
176 | |
177 | mg = mg->mg_moremagic; | |
178 | ||
0723351e | 179 | if (have_new) { |
ff76feab AMS |
180 | /* Have we finished with the new entries we saw? Start again |
181 | where we left off (unless there are more new entries). */ | |
182 | if (mg == head) { | |
0723351e | 183 | have_new = 0; |
ff76feab AMS |
184 | mg = cur; |
185 | head = newmg; | |
186 | } | |
187 | } | |
188 | ||
189 | /* Were any new entries added? */ | |
0723351e NC |
190 | if (!have_new && (newmg = SvMAGIC(sv)) != head) { |
191 | have_new = 1; | |
ff76feab AMS |
192 | cur = mg; |
193 | mg = newmg; | |
760ac839 | 194 | } |
79072805 | 195 | } |
463ee0b2 | 196 | |
acfe0abc | 197 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
6683b158 NC |
198 | |
199 | if (SvREFCNT(sv) == 1) { | |
200 | /* We hold the last reference to this SV, which implies that the | |
201 | SV was deleted as a side effect of the routines we called. */ | |
0c34ef67 | 202 | SvOK_off(sv); |
6683b158 | 203 | } |
79072805 LW |
204 | return 0; |
205 | } | |
206 | ||
954c1994 GS |
207 | /* |
208 | =for apidoc mg_set | |
209 | ||
210 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
211 | ||
212 | =cut | |
213 | */ | |
214 | ||
79072805 | 215 | int |
864dbfa3 | 216 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 217 | { |
35a4481c | 218 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 219 | MAGIC* mg; |
463ee0b2 LW |
220 | MAGIC* nextmg; |
221 | ||
455ece5e | 222 | save_magic(mgs_ix, sv); |
463ee0b2 LW |
223 | |
224 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
e1ec3a88 | 225 | const MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 226 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
227 | if (mg->mg_flags & MGf_GSKIP) { |
228 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 229 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 230 | } |
2b260de0 | 231 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 232 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 233 | } |
463ee0b2 | 234 | |
acfe0abc | 235 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
236 | return 0; |
237 | } | |
238 | ||
954c1994 GS |
239 | /* |
240 | =for apidoc mg_length | |
241 | ||
242 | Report on the SV's length. See C<sv_magic>. | |
243 | ||
244 | =cut | |
245 | */ | |
246 | ||
79072805 | 247 | U32 |
864dbfa3 | 248 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
249 | { |
250 | MAGIC* mg; | |
463ee0b2 | 251 | STRLEN len; |
463ee0b2 | 252 | |
79072805 | 253 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 254 | const MGVTBL * const vtbl = mg->mg_virtual; |
2b260de0 | 255 | if (vtbl && vtbl->svt_len) { |
35a4481c | 256 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
455ece5e | 257 | save_magic(mgs_ix, sv); |
a0d0e21e | 258 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 259 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 260 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
261 | return len; |
262 | } | |
263 | } | |
264 | ||
35a4481c | 265 | if (DO_UTF8(sv)) { |
10516c54 | 266 | const U8 *s = (U8*)SvPV_const(sv, len); |
5636d518 DB |
267 | len = Perl_utf8_length(aTHX_ s, s + len); |
268 | } | |
269 | else | |
10516c54 | 270 | (void)SvPV_const(sv, len); |
463ee0b2 | 271 | return len; |
79072805 LW |
272 | } |
273 | ||
8fb26106 | 274 | I32 |
864dbfa3 | 275 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
276 | { |
277 | MAGIC* mg; | |
ac27b0f5 | 278 | |
93965878 | 279 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 280 | const MGVTBL* const vtbl = mg->mg_virtual; |
2b260de0 | 281 | if (vtbl && vtbl->svt_len) { |
35a4481c AL |
282 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
283 | I32 len; | |
455ece5e | 284 | save_magic(mgs_ix, sv); |
93965878 | 285 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 286 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 287 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
288 | return len; |
289 | } | |
290 | } | |
291 | ||
292 | switch(SvTYPE(sv)) { | |
293 | case SVt_PVAV: | |
35a4481c | 294 | return AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
93965878 NIS |
295 | case SVt_PVHV: |
296 | /* FIXME */ | |
297 | default: | |
cea2e8a9 | 298 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
299 | break; |
300 | } | |
301 | return 0; | |
302 | } | |
303 | ||
954c1994 GS |
304 | /* |
305 | =for apidoc mg_clear | |
306 | ||
307 | Clear something magical that the SV represents. See C<sv_magic>. | |
308 | ||
309 | =cut | |
310 | */ | |
311 | ||
79072805 | 312 | int |
864dbfa3 | 313 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 314 | { |
35a4481c | 315 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 316 | MAGIC* mg; |
463ee0b2 | 317 | |
455ece5e | 318 | save_magic(mgs_ix, sv); |
463ee0b2 | 319 | |
79072805 | 320 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 321 | const MGVTBL* const vtbl = mg->mg_virtual; |
a0d0e21e | 322 | /* omit GSKIP -- never set here */ |
727405f8 | 323 | |
2b260de0 | 324 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 325 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 326 | } |
463ee0b2 | 327 | |
acfe0abc | 328 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
329 | return 0; |
330 | } | |
331 | ||
954c1994 GS |
332 | /* |
333 | =for apidoc mg_find | |
334 | ||
335 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
336 | ||
337 | =cut | |
338 | */ | |
339 | ||
93a17b20 | 340 | MAGIC* |
35a4481c | 341 | Perl_mg_find(pTHX_ const SV *sv, int type) |
93a17b20 | 342 | { |
35a4481c AL |
343 | if (sv) { |
344 | MAGIC *mg; | |
345 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
346 | if (mg->mg_type == type) | |
347 | return mg; | |
348 | } | |
93a17b20 LW |
349 | } |
350 | return 0; | |
351 | } | |
352 | ||
954c1994 GS |
353 | /* |
354 | =for apidoc mg_copy | |
355 | ||
356 | Copies the magic from one SV to another. See C<sv_magic>. | |
357 | ||
358 | =cut | |
359 | */ | |
360 | ||
79072805 | 361 | int |
864dbfa3 | 362 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 363 | { |
463ee0b2 | 364 | int count = 0; |
79072805 | 365 | MAGIC* mg; |
463ee0b2 | 366 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 367 | const MGVTBL* const vtbl = mg->mg_virtual; |
68795e93 NIS |
368 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
369 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
370 | } | |
371 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 372 | sv_magic(nsv, |
14befaf4 DM |
373 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
374 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
375 | ? sv : mg->mg_obj, | |
33c27489 | 376 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 377 | count++; |
79072805 | 378 | } |
79072805 | 379 | } |
463ee0b2 | 380 | return count; |
79072805 LW |
381 | } |
382 | ||
954c1994 | 383 | /* |
0cbee0a4 DM |
384 | =for apidoc mg_localize |
385 | ||
386 | Copy some of the magic from an existing SV to new localized version of | |
387 | that SV. Container magic (eg %ENV, $1, tie) gets copied, value magic | |
388 | doesn't (eg taint, pos). | |
389 | ||
390 | =cut | |
391 | */ | |
392 | ||
393 | void | |
394 | Perl_mg_localize(pTHX_ SV *sv, SV *nsv) | |
395 | { | |
396 | MAGIC *mg; | |
397 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
398 | const MGVTBL* const vtbl = mg->mg_virtual; | |
399 | switch (mg->mg_type) { | |
400 | /* value magic types: don't copy */ | |
401 | case PERL_MAGIC_bm: | |
402 | case PERL_MAGIC_fm: | |
403 | case PERL_MAGIC_regex_global: | |
404 | case PERL_MAGIC_nkeys: | |
405 | #ifdef USE_LOCALE_COLLATE | |
406 | case PERL_MAGIC_collxfrm: | |
407 | #endif | |
408 | case PERL_MAGIC_qr: | |
409 | case PERL_MAGIC_taint: | |
410 | case PERL_MAGIC_vec: | |
411 | case PERL_MAGIC_vstring: | |
412 | case PERL_MAGIC_utf8: | |
413 | case PERL_MAGIC_substr: | |
414 | case PERL_MAGIC_defelem: | |
415 | case PERL_MAGIC_arylen: | |
416 | case PERL_MAGIC_pos: | |
417 | case PERL_MAGIC_backref: | |
418 | case PERL_MAGIC_arylen_p: | |
419 | case PERL_MAGIC_rhash: | |
420 | case PERL_MAGIC_symtab: | |
421 | continue; | |
422 | } | |
423 | ||
424 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy) { | |
425 | /* XXX calling the copy method is probably not correct. DAPM */ | |
426 | (void)CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, | |
427 | mg->mg_ptr, mg->mg_len); | |
428 | } | |
429 | else { | |
430 | sv_magicext(nsv, mg->mg_obj, mg->mg_type, vtbl, | |
431 | mg->mg_ptr, mg->mg_len); | |
432 | } | |
433 | /* container types should remain read-only across localization */ | |
434 | SvFLAGS(nsv) |= SvREADONLY(sv); | |
435 | } | |
436 | ||
437 | if (SvTYPE(nsv) >= SVt_PVMG && SvMAGIC(nsv)) { | |
438 | SvFLAGS(nsv) |= SvMAGICAL(sv); | |
439 | PL_localizing = 1; | |
440 | SvSETMAGIC(nsv); | |
441 | PL_localizing = 0; | |
442 | } | |
443 | } | |
444 | ||
445 | /* | |
954c1994 GS |
446 | =for apidoc mg_free |
447 | ||
448 | Free any magic storage used by the SV. See C<sv_magic>. | |
449 | ||
450 | =cut | |
451 | */ | |
452 | ||
79072805 | 453 | int |
864dbfa3 | 454 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
455 | { |
456 | MAGIC* mg; | |
457 | MAGIC* moremagic; | |
458 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
35a4481c | 459 | const MGVTBL* const vtbl = mg->mg_virtual; |
79072805 | 460 | moremagic = mg->mg_moremagic; |
2b260de0 | 461 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 462 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 463 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
979acdb5 | 464 | if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8) |
88e89b8a | 465 | Safefree(mg->mg_ptr); |
565764a8 | 466 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 467 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 468 | } |
b881518d JH |
469 | if (mg->mg_flags & MGf_REFCOUNTED) |
470 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
471 | Safefree(mg); |
472 | } | |
b162af07 | 473 | SvMAGIC_set(sv, NULL); |
79072805 LW |
474 | return 0; |
475 | } | |
476 | ||
79072805 | 477 | #include <signal.h> |
79072805 | 478 | |
942e002e | 479 | U32 |
864dbfa3 | 480 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 481 | { |
35a4481c | 482 | register const REGEXP *rx; |
dd374669 | 483 | (void)sv; |
6cef1e77 | 484 | |
aaa362c4 | 485 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
486 | if (mg->mg_obj) /* @+ */ |
487 | return rx->nparens; | |
488 | else /* @- */ | |
489 | return rx->lastparen; | |
490 | } | |
ac27b0f5 | 491 | |
942e002e | 492 | return (U32)-1; |
6cef1e77 IZ |
493 | } |
494 | ||
495 | int | |
864dbfa3 | 496 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 497 | { |
6cef1e77 | 498 | register REGEXP *rx; |
6cef1e77 | 499 | |
aaa362c4 | 500 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
35a4481c AL |
501 | register const I32 paren = mg->mg_len; |
502 | register I32 s; | |
503 | register I32 t; | |
6cef1e77 IZ |
504 | if (paren < 0) |
505 | return 0; | |
eb160463 | 506 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
507 | (s = rx->startp[paren]) != -1 && |
508 | (t = rx->endp[paren]) != -1) | |
6cef1e77 | 509 | { |
35a4481c | 510 | register I32 i; |
6cef1e77 | 511 | if (mg->mg_obj) /* @+ */ |
cf93c79d | 512 | i = t; |
6cef1e77 | 513 | else /* @- */ |
cf93c79d | 514 | i = s; |
727405f8 | 515 | |
a30b2f1f | 516 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b | 517 | char *b = rx->subbeg; |
0064a8a9 JH |
518 | if (b) |
519 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 520 | } |
0064a8a9 JH |
521 | |
522 | sv_setiv(sv, i); | |
6cef1e77 IZ |
523 | } |
524 | } | |
525 | return 0; | |
526 | } | |
527 | ||
e4b89193 | 528 | int |
a29d06ed MG |
529 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
530 | { | |
dd374669 | 531 | (void)sv; (void)mg; |
a29d06ed | 532 | Perl_croak(aTHX_ PL_no_modify); |
0dbb1585 | 533 | NORETURN_FUNCTION_END; |
a29d06ed MG |
534 | } |
535 | ||
93a17b20 | 536 | U32 |
864dbfa3 | 537 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
538 | { |
539 | register I32 paren; | |
93a17b20 | 540 | register I32 i; |
dd374669 | 541 | register const REGEXP *rx; |
a197cbdd | 542 | I32 s1, t1; |
93a17b20 LW |
543 | |
544 | switch (*mg->mg_ptr) { | |
545 | case '1': case '2': case '3': case '4': | |
546 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 547 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 548 | |
ffc61ed2 | 549 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 550 | getparen: |
eb160463 | 551 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
552 | (s1 = rx->startp[paren]) != -1 && |
553 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 554 | { |
cf93c79d | 555 | i = t1 - s1; |
a197cbdd | 556 | getlen: |
a30b2f1f | 557 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
a28509cc | 558 | const char * const s = rx->subbeg + s1; |
768c67ee JH |
559 | const U8 *ep; |
560 | STRLEN el; | |
ffc61ed2 | 561 | |
6d5fa195 | 562 | i = t1 - s1; |
768c67ee JH |
563 | if (is_utf8_string_loclen((U8*)s, i, &ep, &el)) |
564 | i = el; | |
a197cbdd | 565 | } |
ffc61ed2 | 566 | if (i < 0) |
0844c848 | 567 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 568 | return i; |
93a17b20 | 569 | } |
235bddc8 NIS |
570 | else { |
571 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 572 | report_uninit(sv); |
235bddc8 NIS |
573 | } |
574 | } | |
575 | else { | |
576 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 577 | report_uninit(sv); |
93a17b20 | 578 | } |
748a9306 | 579 | return 0; |
93a17b20 | 580 | case '+': |
aaa362c4 | 581 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 582 | paren = rx->lastparen; |
13f57bf8 CS |
583 | if (paren) |
584 | goto getparen; | |
93a17b20 | 585 | } |
748a9306 | 586 | return 0; |
a01268b5 JH |
587 | case '\016': /* ^N */ |
588 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
589 | paren = rx->lastcloseparen; | |
590 | if (paren) | |
591 | goto getparen; | |
592 | } | |
593 | return 0; | |
93a17b20 | 594 | case '`': |
aaa362c4 | 595 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
596 | if (rx->startp[0] != -1) { |
597 | i = rx->startp[0]; | |
a197cbdd GS |
598 | if (i > 0) { |
599 | s1 = 0; | |
600 | t1 = i; | |
601 | goto getlen; | |
602 | } | |
93a17b20 | 603 | } |
93a17b20 | 604 | } |
748a9306 | 605 | return 0; |
93a17b20 | 606 | case '\'': |
aaa362c4 | 607 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
608 | if (rx->endp[0] != -1) { |
609 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
610 | if (i > 0) { |
611 | s1 = rx->endp[0]; | |
612 | t1 = rx->sublen; | |
613 | goto getlen; | |
614 | } | |
93a17b20 | 615 | } |
93a17b20 | 616 | } |
748a9306 | 617 | return 0; |
93a17b20 LW |
618 | } |
619 | magic_get(sv,mg); | |
2d8e6c8d | 620 | if (!SvPOK(sv) && SvNIOK(sv)) { |
8b6b16e7 | 621 | sv_2pv(sv, 0); |
2d8e6c8d | 622 | } |
93a17b20 LW |
623 | if (SvPOK(sv)) |
624 | return SvCUR(sv); | |
625 | return 0; | |
626 | } | |
627 | ||
ad3296c6 SH |
628 | #define SvRTRIM(sv) STMT_START { \ |
629 | STRLEN len = SvCUR(sv); \ | |
630 | while (len > 0 && isSPACE(SvPVX(sv)[len-1])) \ | |
631 | --len; \ | |
632 | SvCUR_set(sv, len); \ | |
633 | } STMT_END | |
634 | ||
79072805 | 635 | int |
864dbfa3 | 636 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 637 | { |
27da23d5 | 638 | dVAR; |
79072805 | 639 | register I32 paren; |
35272f84 | 640 | register char *s = NULL; |
79072805 | 641 | register I32 i; |
d9f97599 | 642 | register REGEXP *rx; |
79072805 LW |
643 | |
644 | switch (*mg->mg_ptr) { | |
748a9306 | 645 | case '\001': /* ^A */ |
3280af22 | 646 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 647 | break; |
e5218da5 GA |
648 | case '\003': /* ^C, ^CHILD_ERROR_NATIVE */ |
649 | if (*(mg->mg_ptr+1) == '\0') { | |
650 | sv_setiv(sv, (IV)PL_minus_c); | |
651 | } | |
652 | else if (strEQ(mg->mg_ptr, "\003HILD_ERROR_NATIVE")) { | |
653 | sv_setiv(sv, (IV)STATUS_NATIVE); | |
654 | } | |
49460fe6 NIS |
655 | break; |
656 | ||
79072805 | 657 | case '\004': /* ^D */ |
aea4f609 | 658 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
79072805 | 659 | break; |
28f23441 | 660 | case '\005': /* ^E */ |
0a378802 | 661 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 662 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
663 | { |
664 | char msg[256]; | |
727405f8 | 665 | |
0a378802 | 666 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 667 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 668 | } |
727405f8 | 669 | #else |
28f23441 | 670 | #ifdef VMS |
0a378802 JH |
671 | { |
672 | # include <descrip.h> | |
673 | # include <starlet.h> | |
674 | char msg[255]; | |
675 | $DESCRIPTOR(msgdsc,msg); | |
676 | sv_setnv(sv,(NV) vaxc$errno); | |
677 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
678 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
679 | else | |
c69006e4 | 680 | sv_setpvn(sv,"",0); |
0a378802 | 681 | } |
28f23441 | 682 | #else |
88e89b8a | 683 | #ifdef OS2 |
0a378802 JH |
684 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
685 | sv_setnv(sv, (NV)errno); | |
686 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
687 | } else { | |
688 | if (errno != errno_isOS2) { | |
689 | int tmp = _syserrno(); | |
690 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
691 | Perl_rc = tmp; | |
692 | } | |
693 | sv_setnv(sv, (NV)Perl_rc); | |
694 | sv_setpv(sv, os2error(Perl_rc)); | |
695 | } | |
88e89b8a | 696 | #else |
22fae026 | 697 | #ifdef WIN32 |
0a378802 JH |
698 | { |
699 | DWORD dwErr = GetLastError(); | |
700 | sv_setnv(sv, (NV)dwErr); | |
701 | if (dwErr) | |
702 | { | |
703 | PerlProc_GetOSError(sv, dwErr); | |
704 | } | |
705 | else | |
c69006e4 | 706 | sv_setpvn(sv, "", 0); |
0a378802 JH |
707 | SetLastError(dwErr); |
708 | } | |
22fae026 | 709 | #else |
f6c8f21d RGS |
710 | { |
711 | int saveerrno = errno; | |
712 | sv_setnv(sv, (NV)errno); | |
713 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
714 | errno = saveerrno; | |
715 | } | |
28f23441 | 716 | #endif |
88e89b8a | 717 | #endif |
22fae026 | 718 | #endif |
cd39f2b6 | 719 | #endif |
ad3296c6 | 720 | SvRTRIM(sv); |
0a378802 JH |
721 | SvNOK_on(sv); /* what a wonderful hack! */ |
722 | } | |
723 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
724 | sv_setsv(sv, PL_encoding); | |
725 | break; | |
79072805 | 726 | case '\006': /* ^F */ |
3280af22 | 727 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 728 | break; |
a0d0e21e | 729 | case '\010': /* ^H */ |
3280af22 | 730 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 731 | break; |
9d116dd7 | 732 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
733 | if (PL_inplace) |
734 | sv_setpv(sv, PL_inplace); | |
79072805 | 735 | else |
3280af22 | 736 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 737 | break; |
ac27b0f5 | 738 | case '\017': /* ^O & ^OPEN */ |
3511154c | 739 | if (*(mg->mg_ptr+1) == '\0') { |
ac27b0f5 | 740 | sv_setpv(sv, PL_osname); |
3511154c DM |
741 | SvTAINTED_off(sv); |
742 | } | |
ac27b0f5 NIS |
743 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
744 | if (!PL_compiling.cop_io) | |
745 | sv_setsv(sv, &PL_sv_undef); | |
746 | else { | |
747 | sv_setsv(sv, PL_compiling.cop_io); | |
748 | } | |
749 | } | |
28f23441 | 750 | break; |
79072805 | 751 | case '\020': /* ^P */ |
3280af22 | 752 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 753 | break; |
fb73857a | 754 | case '\023': /* ^S */ |
4ffa73a3 | 755 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 756 | if (PL_lex_state != LEX_NOTPARSING) |
0c34ef67 | 757 | SvOK_off(sv); |
3280af22 | 758 | else if (PL_in_eval) |
6dc8a9e4 | 759 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
760 | else |
761 | sv_setiv(sv, 0); | |
d58bf5aa | 762 | } |
fb73857a | 763 | break; |
79072805 | 764 | case '\024': /* ^T */ |
7c36658b | 765 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 766 | #ifdef BIG_TIME |
7c36658b | 767 | sv_setnv(sv, PL_basetime); |
88e89b8a | 768 | #else |
7c36658b | 769 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 770 | #endif |
7c36658b MS |
771 | } |
772 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
773 | sv_setiv(sv, PL_tainting |
774 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
775 | : 0); | |
7c36658b | 776 | break; |
7cebcbc0 | 777 | case '\025': /* $^UNICODE, $^UTF8LOCALE */ |
a05d7ebb JH |
778 | if (strEQ(mg->mg_ptr, "\025NICODE")) |
779 | sv_setuv(sv, (UV) PL_unicode); | |
7cebcbc0 NC |
780 | else if (strEQ(mg->mg_ptr, "\025TF8LOCALE")) |
781 | sv_setuv(sv, (UV) PL_utf8locale); | |
fde18df1 JH |
782 | break; |
783 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
784 | if (*(mg->mg_ptr+1) == '\0') |
785 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 786 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
787 | if (PL_compiling.cop_warnings == pWARN_NONE || |
788 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
789 | { |
790 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
791 | } | |
d3a7d8c7 | 792 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
793 | /* Get the bit mask for $warnings::Bits{all}, because |
794 | * it could have been extended by warnings::register */ | |
795 | SV **bits_all; | |
796 | HV *bits=get_hv("warnings::Bits", FALSE); | |
797 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
798 | sv_setsv(sv, *bits_all); | |
799 | } | |
800 | else { | |
801 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
802 | } | |
ac27b0f5 | 803 | } |
4438c4b7 JH |
804 | else { |
805 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 806 | } |
d3a7d8c7 | 807 | SvPOK_only(sv); |
4438c4b7 | 808 | } |
79072805 LW |
809 | break; |
810 | case '1': case '2': case '3': case '4': | |
811 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 812 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
813 | I32 s1, t1; |
814 | ||
a863c7d1 MB |
815 | /* |
816 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
817 | * XXX Does the new way break anything? | |
818 | */ | |
ffc61ed2 | 819 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 820 | getparen: |
eb160463 | 821 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
822 | (s1 = rx->startp[paren]) != -1 && |
823 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 824 | { |
cf93c79d IZ |
825 | i = t1 - s1; |
826 | s = rx->subbeg + s1; | |
01ec43d0 | 827 | if (!rx->subbeg) |
c2e66d9e GS |
828 | break; |
829 | ||
13f57bf8 | 830 | getrx: |
748a9306 | 831 | if (i >= 0) { |
cf93c79d | 832 | sv_setpvn(sv, s, i); |
a30b2f1f | 833 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
834 | SvUTF8_on(sv); |
835 | else | |
836 | SvUTF8_off(sv); | |
e9814ee1 HS |
837 | if (PL_tainting) { |
838 | if (RX_MATCH_TAINTED(rx)) { | |
839 | MAGIC* mg = SvMAGIC(sv); | |
840 | MAGIC* mgt; | |
841 | PL_tainted = 1; | |
b162af07 | 842 | SvMAGIC_set(sv, mg->mg_moremagic); |
e9814ee1 HS |
843 | SvTAINT(sv); |
844 | if ((mgt = SvMAGIC(sv))) { | |
845 | mg->mg_moremagic = mgt; | |
b162af07 | 846 | SvMAGIC_set(sv, mg); |
e9814ee1 HS |
847 | } |
848 | } else | |
849 | SvTAINTED_off(sv); | |
850 | } | |
748a9306 LW |
851 | break; |
852 | } | |
79072805 | 853 | } |
79072805 | 854 | } |
3280af22 | 855 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
856 | break; |
857 | case '+': | |
aaa362c4 | 858 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 859 | paren = rx->lastparen; |
a0d0e21e LW |
860 | if (paren) |
861 | goto getparen; | |
79072805 | 862 | } |
3280af22 | 863 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 864 | break; |
a01268b5 JH |
865 | case '\016': /* ^N */ |
866 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
867 | paren = rx->lastcloseparen; | |
868 | if (paren) | |
869 | goto getparen; | |
870 | } | |
871 | sv_setsv(sv,&PL_sv_undef); | |
872 | break; | |
79072805 | 873 | case '`': |
aaa362c4 | 874 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
875 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
876 | i = rx->startp[0]; | |
13f57bf8 | 877 | goto getrx; |
79072805 | 878 | } |
79072805 | 879 | } |
3280af22 | 880 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
881 | break; |
882 | case '\'': | |
aaa362c4 | 883 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
884 | if (rx->subbeg && rx->endp[0] != -1) { |
885 | s = rx->subbeg + rx->endp[0]; | |
886 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 887 | goto getrx; |
79072805 | 888 | } |
79072805 | 889 | } |
3280af22 | 890 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
891 | break; |
892 | case '.': | |
3280af22 | 893 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 894 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 | 895 | } |
79072805 LW |
896 | break; |
897 | case '?': | |
809a5acc | 898 | { |
809a5acc | 899 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 900 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
901 | LvTARGOFF(sv) = PL_statusvalue; |
902 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 903 | #endif |
809a5acc | 904 | } |
79072805 LW |
905 | break; |
906 | case '^': | |
0daa599b RGS |
907 | if (GvIOp(PL_defoutgv)) |
908 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
909 | if (s) |
910 | sv_setpv(sv,s); | |
911 | else { | |
3280af22 | 912 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
913 | sv_catpv(sv,"_TOP"); |
914 | } | |
915 | break; | |
916 | case '~': | |
0daa599b RGS |
917 | if (GvIOp(PL_defoutgv)) |
918 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 919 | if (!s) |
3280af22 | 920 | s = GvENAME(PL_defoutgv); |
79072805 LW |
921 | sv_setpv(sv,s); |
922 | break; | |
79072805 | 923 | case '=': |
0daa599b RGS |
924 | if (GvIOp(PL_defoutgv)) |
925 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
926 | break; |
927 | case '-': | |
0daa599b RGS |
928 | if (GvIOp(PL_defoutgv)) |
929 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
930 | break; |
931 | case '%': | |
0daa599b RGS |
932 | if (GvIOp(PL_defoutgv)) |
933 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 | 934 | break; |
79072805 LW |
935 | case ':': |
936 | break; | |
937 | case '/': | |
938 | break; | |
939 | case '[': | |
3280af22 | 940 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
941 | break; |
942 | case '|': | |
0daa599b RGS |
943 | if (GvIOp(PL_defoutgv)) |
944 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
945 | break; |
946 | case ',': | |
79072805 LW |
947 | break; |
948 | case '\\': | |
b2ce0fda | 949 | if (PL_ors_sv) |
f28098ff | 950 | sv_copypv(sv, PL_ors_sv); |
79072805 | 951 | break; |
79072805 | 952 | case '!': |
a5f75d66 | 953 | #ifdef VMS |
65202027 | 954 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 955 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 956 | #else |
88e89b8a | 957 | { |
958 | int saveerrno = errno; | |
65202027 | 959 | sv_setnv(sv, (NV)errno); |
88e89b8a | 960 | #ifdef OS2 |
ed344e4f IZ |
961 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
962 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 963 | else |
a5f75d66 | 964 | #endif |
2304df62 | 965 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 966 | errno = saveerrno; |
967 | } | |
968 | #endif | |
ad3296c6 | 969 | SvRTRIM(sv); |
946ec16e | 970 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
971 | break; |
972 | case '<': | |
3280af22 | 973 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
974 | break; |
975 | case '>': | |
3280af22 | 976 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
977 | break; |
978 | case '(': | |
3280af22 | 979 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 980 | #ifdef HAS_GETGROUPS |
a3b680e6 | 981 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_gid); |
a52cb5f7 | 982 | #endif |
79072805 LW |
983 | goto add_groups; |
984 | case ')': | |
3280af22 | 985 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 986 | #ifdef HAS_GETGROUPS |
a3b680e6 | 987 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_egid); |
a52cb5f7 | 988 | #endif |
79072805 | 989 | add_groups: |
79072805 | 990 | #ifdef HAS_GETGROUPS |
79072805 | 991 | { |
a0d0e21e | 992 | Groups_t gary[NGROUPS]; |
a3b680e6 AL |
993 | I32 j = getgroups(NGROUPS,gary); |
994 | while (--j >= 0) | |
995 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, (long unsigned int)gary[j]); | |
79072805 LW |
996 | } |
997 | #endif | |
155aba94 | 998 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 | 999 | break; |
cd39f2b6 | 1000 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
1001 | case '0': |
1002 | break; | |
cd39f2b6 | 1003 | #endif |
79072805 | 1004 | } |
a0d0e21e | 1005 | return 0; |
79072805 LW |
1006 | } |
1007 | ||
1008 | int | |
864dbfa3 | 1009 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1010 | { |
1011 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1012 | ||
1013 | if (uf && uf->uf_val) | |
24f81a43 | 1014 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1015 | return 0; |
1016 | } | |
1017 | ||
1018 | int | |
864dbfa3 | 1019 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1020 | { |
27da23d5 | 1021 | dVAR; |
b83604b4 | 1022 | const char *s; |
e62f0680 | 1023 | const char *ptr; |
5aabfad6 | 1024 | STRLEN len, klen; |
1e422769 | 1025 | |
b83604b4 | 1026 | s = SvPV_const(sv,len); |
e62f0680 | 1027 | ptr = MgPV_const(mg,klen); |
88e89b8a | 1028 | my_setenv(ptr, s); |
1e422769 | 1029 | |
a0d0e21e LW |
1030 | #ifdef DYNAMIC_ENV_FETCH |
1031 | /* We just undefd an environment var. Is a replacement */ | |
1032 | /* waiting in the wings? */ | |
1033 | if (!len) { | |
5aabfad6 | 1034 | SV **valp; |
6b88bc9c | 1035 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
b83604b4 | 1036 | s = SvPV_const(*valp, len); |
a0d0e21e LW |
1037 | } |
1038 | #endif | |
1e422769 | 1039 | |
39e571d4 | 1040 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
1041 | /* And you'll never guess what the dog had */ |
1042 | /* in its mouth... */ | |
3280af22 | 1043 | if (PL_tainting) { |
1e422769 | 1044 | MgTAINTEDDIR_off(mg); |
1045 | #ifdef VMS | |
5aabfad6 | 1046 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 1047 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 1048 | Stat_t sbuf; |
1e422769 | 1049 | int i = 0, j = 0; |
1050 | ||
1051 | do { /* DCL$PATH may be a search list */ | |
1052 | while (1) { /* as may dev portion of any element */ | |
1053 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
1054 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
1055 | cando_by_name(S_IWUSR,0,elt) ) { | |
1056 | MgTAINTEDDIR_on(mg); | |
1057 | return 0; | |
1058 | } | |
1059 | } | |
1060 | if ((cp = strchr(elt, ':')) != Nullch) | |
1061 | *cp = '\0'; | |
1062 | if (my_trnlnm(elt, eltbuf, j++)) | |
1063 | elt = eltbuf; | |
1064 | else | |
1065 | break; | |
1066 | } | |
1067 | j = 0; | |
1068 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
1069 | } | |
1070 | #endif /* VMS */ | |
5aabfad6 | 1071 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
b83604b4 | 1072 | const char *strend = s + len; |
463ee0b2 LW |
1073 | |
1074 | while (s < strend) { | |
96827780 | 1075 | char tmpbuf[256]; |
c623ac67 | 1076 | Stat_t st; |
5f74f29c | 1077 | I32 i; |
96827780 | 1078 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 1079 | s, strend, ':', &i); |
463ee0b2 | 1080 | s++; |
96827780 MB |
1081 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
1082 | || *tmpbuf != '/' | |
c6ed36e1 | 1083 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 1084 | MgTAINTEDDIR_on(mg); |
1e422769 | 1085 | return 0; |
1086 | } | |
463ee0b2 | 1087 | } |
79072805 LW |
1088 | } |
1089 | } | |
39e571d4 | 1090 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1091 | |
79072805 LW |
1092 | return 0; |
1093 | } | |
1094 | ||
1095 | int | |
864dbfa3 | 1096 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1097 | { |
dd374669 | 1098 | (void)sv; |
01b8bcb7 | 1099 | my_setenv(MgPV_nolen_const(mg),Nullch); |
85e6fe83 LW |
1100 | return 0; |
1101 | } | |
1102 | ||
88e89b8a | 1103 | int |
864dbfa3 | 1104 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1105 | { |
27da23d5 | 1106 | #if defined(VMS) || defined(EPOC) || defined(SYMBIAN) |
cea2e8a9 | 1107 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1108 | #else |
3280af22 | 1109 | if (PL_localizing) { |
fb73857a | 1110 | HE* entry; |
1111 | magic_clear_all_env(sv,mg); | |
1112 | hv_iterinit((HV*)sv); | |
155aba94 | 1113 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1114 | I32 keylen; |
1115 | my_setenv(hv_iterkey(entry, &keylen), | |
b83604b4 | 1116 | SvPV_nolen_const(hv_iterval((HV*)sv, entry))); |
fb73857a | 1117 | } |
1118 | } | |
1119 | #endif | |
1120 | return 0; | |
1121 | } | |
1122 | ||
1123 | int | |
864dbfa3 | 1124 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1125 | { |
27da23d5 | 1126 | dVAR; |
2f42fcb0 | 1127 | #ifndef PERL_MICRO |
27da23d5 | 1128 | #if defined(VMS) || defined(EPOC) || defined(SYMBIAN) |
cea2e8a9 | 1129 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1130 | #else |
4efc5df6 | 1131 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1132 | PerlEnv_clearenv(); |
4efc5df6 GS |
1133 | # else |
1134 | # ifdef USE_ENVIRON_ARRAY | |
1135 | # if defined(USE_ITHREADS) | |
1136 | /* only the parent thread can clobber the process environment */ | |
1137 | if (PL_curinterp == aTHX) | |
1138 | # endif | |
1139 | { | |
1140 | # ifndef PERL_USE_SAFE_PUTENV | |
50acdf95 | 1141 | if (!PL_use_safe_putenv) { |
66b1d557 HM |
1142 | I32 i; |
1143 | ||
3280af22 | 1144 | if (environ == PL_origenviron) |
f2517201 | 1145 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1146 | else |
1147 | for (i = 0; environ[i]; i++) | |
f2517201 | 1148 | safesysfree(environ[i]); |
50acdf95 | 1149 | } |
4efc5df6 | 1150 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1151 | |
66b1d557 | 1152 | environ[0] = Nullch; |
4efc5df6 GS |
1153 | } |
1154 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 | 1155 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
2f42fcb0 JH |
1156 | #endif /* VMS || EPOC */ |
1157 | #endif /* !PERL_MICRO */ | |
dd374669 AL |
1158 | (void)sv; |
1159 | (void)mg; | |
3e3baf6d | 1160 | return 0; |
66b1d557 HM |
1161 | } |
1162 | ||
64ca3a65 | 1163 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1164 | #ifdef HAS_SIGPROCMASK |
1165 | static void | |
1166 | restore_sigmask(pTHX_ SV *save_sv) | |
1167 | { | |
b83604b4 | 1168 | const sigset_t *ossetp = (const sigset_t *) SvPV_nolen_const( save_sv ); |
2d4fcd5e AJ |
1169 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); |
1170 | } | |
1171 | #endif | |
66b1d557 | 1172 | int |
864dbfa3 | 1173 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1174 | { |
1175 | I32 i; | |
1176 | /* Are we fetching a signal entry? */ | |
01b8bcb7 | 1177 | i = whichsig(MgPV_nolen_const(mg)); |
e02bfb16 | 1178 | if (i > 0) { |
22c35a8c GS |
1179 | if(PL_psig_ptr[i]) |
1180 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1181 | else { |
85b332e2 | 1182 | Sighandler_t sigstate; |
2e34cc90 | 1183 | sigstate = rsignal_state(i); |
23ada85b | 1184 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1185 | if (PL_sig_handlers_initted && PL_sig_ignoring[i]) sigstate = SIG_IGN; |
2e34cc90 CL |
1186 | #endif |
1187 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1188 | if (PL_sig_handlers_initted && PL_sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 | 1189 | #endif |
88e89b8a | 1190 | /* cache state so we don't fetch it again */ |
ff68c719 | 1191 | if(sigstate == SIG_IGN) |
88e89b8a | 1192 | sv_setpv(sv,"IGNORE"); |
1193 | else | |
3280af22 | 1194 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1195 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1196 | SvTEMP_off(sv); |
1197 | } | |
1198 | } | |
1199 | return 0; | |
1200 | } | |
1201 | int | |
864dbfa3 | 1202 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1203 | { |
2d4fcd5e AJ |
1204 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1205 | * refactoring might be in order. | |
1206 | */ | |
27da23d5 | 1207 | dVAR; |
01b8bcb7 | 1208 | register const char *s = MgPV_nolen_const(mg); |
dd374669 | 1209 | (void)sv; |
2d4fcd5e | 1210 | if (*s == '_') { |
27da23d5 | 1211 | SV** svp = 0; |
2d4fcd5e AJ |
1212 | if (strEQ(s,"__DIE__")) |
1213 | svp = &PL_diehook; | |
1214 | else if (strEQ(s,"__WARN__")) | |
1215 | svp = &PL_warnhook; | |
1216 | else | |
1217 | Perl_croak(aTHX_ "No such hook: %s", s); | |
27da23d5 | 1218 | if (svp && *svp) { |
dd374669 | 1219 | SV *to_dec = *svp; |
2d4fcd5e AJ |
1220 | *svp = 0; |
1221 | SvREFCNT_dec(to_dec); | |
1222 | } | |
1223 | } | |
1224 | else { | |
1225 | I32 i; | |
1226 | /* Are we clearing a signal entry? */ | |
1227 | i = whichsig(s); | |
e02bfb16 | 1228 | if (i > 0) { |
2d4fcd5e AJ |
1229 | #ifdef HAS_SIGPROCMASK |
1230 | sigset_t set, save; | |
1231 | SV* save_sv; | |
1232 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1233 | sigemptyset(&set); | |
1234 | sigaddset(&set,i); | |
1235 | sigprocmask(SIG_BLOCK, &set, &save); | |
1236 | ENTER; | |
1237 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1238 | SAVEFREESV(save_sv); | |
1239 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1240 | #endif | |
1241 | PERL_ASYNC_CHECK(); | |
1242 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
27da23d5 | 1243 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2d4fcd5e AJ |
1244 | #endif |
1245 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1246 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1247 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1248 | #else |
1249 | (void)rsignal(i, SIG_DFL); | |
1250 | #endif | |
1251 | if(PL_psig_name[i]) { | |
1252 | SvREFCNT_dec(PL_psig_name[i]); | |
1253 | PL_psig_name[i]=0; | |
1254 | } | |
1255 | if(PL_psig_ptr[i]) { | |
dd374669 | 1256 | SV *to_dec=PL_psig_ptr[i]; |
2d4fcd5e AJ |
1257 | PL_psig_ptr[i]=0; |
1258 | LEAVE; | |
1259 | SvREFCNT_dec(to_dec); | |
1260 | } | |
1261 | else | |
1262 | LEAVE; | |
1263 | } | |
88e89b8a | 1264 | } |
1265 | return 0; | |
1266 | } | |
3d37d572 | 1267 | |
dd374669 AL |
1268 | static void |
1269 | S_raise_signal(pTHX_ int sig) | |
0a8e0eff NIS |
1270 | { |
1271 | /* Set a flag to say this signal is pending */ | |
1272 | PL_psig_pend[sig]++; | |
1273 | /* And one to say _a_ signal is pending */ | |
1274 | PL_sig_pending = 1; | |
1275 | } | |
1276 | ||
1277 | Signal_t | |
1278 | Perl_csighandler(int sig) | |
1279 | { | |
1018e26f NIS |
1280 | #ifdef PERL_GET_SIG_CONTEXT |
1281 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1282 | #else | |
85b332e2 CL |
1283 | dTHX; |
1284 | #endif | |
23ada85b | 1285 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc | 1286 | (void) rsignal(sig, PL_csighandlerp); |
27da23d5 | 1287 | if (PL_sig_ignoring[sig]) return; |
85b332e2 | 1288 | #endif |
2e34cc90 | 1289 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1290 | if (PL_sig_defaulting[sig]) |
2e34cc90 CL |
1291 | #ifdef KILL_BY_SIGPRC |
1292 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1293 | #else | |
1294 | exit(1); | |
1295 | #endif | |
1296 | #endif | |
4ffa73a3 JH |
1297 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1298 | /* Call the perl level handler now-- | |
1299 | * with risk we may be in malloc() etc. */ | |
1300 | (*PL_sighandlerp)(sig); | |
1301 | else | |
dd374669 | 1302 | S_raise_signal(aTHX_ sig); |
0a8e0eff NIS |
1303 | } |
1304 | ||
2e34cc90 CL |
1305 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1306 | void | |
1307 | Perl_csighandler_init(void) | |
1308 | { | |
1309 | int sig; | |
27da23d5 | 1310 | if (PL_sig_handlers_initted) return; |
2e34cc90 CL |
1311 | |
1312 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1313 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1314 | dTHX; |
27da23d5 | 1315 | PL_sig_defaulting[sig] = 1; |
5c1546dc | 1316 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1317 | #endif |
1318 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
27da23d5 | 1319 | PL_sig_ignoring[sig] = 0; |
2e34cc90 CL |
1320 | #endif |
1321 | } | |
27da23d5 | 1322 | PL_sig_handlers_initted = 1; |
2e34cc90 CL |
1323 | } |
1324 | #endif | |
1325 | ||
0a8e0eff NIS |
1326 | void |
1327 | Perl_despatch_signals(pTHX) | |
1328 | { | |
1329 | int sig; | |
1330 | PL_sig_pending = 0; | |
1331 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1332 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1333 | PERL_BLOCKSIG_ADD(set, sig); |
1334 | PL_psig_pend[sig] = 0; | |
1335 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1336 | (*PL_sighandlerp)(sig); |
25da4428 | 1337 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1338 | } |
1339 | } | |
1340 | } | |
1341 | ||
85e6fe83 | 1342 | int |
864dbfa3 | 1343 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1344 | { |
27da23d5 | 1345 | dVAR; |
79072805 | 1346 | I32 i; |
b7953727 | 1347 | SV** svp = 0; |
2d4fcd5e AJ |
1348 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1349 | * effects (due to closures). We must make sure that the new disposition | |
1350 | * is in place before it is called. | |
1351 | */ | |
1352 | SV* to_dec = 0; | |
e72dc28c | 1353 | STRLEN len; |
2d4fcd5e AJ |
1354 | #ifdef HAS_SIGPROCMASK |
1355 | sigset_t set, save; | |
1356 | SV* save_sv; | |
1357 | #endif | |
a0d0e21e | 1358 | |
d5263905 | 1359 | register const char *s = MgPV_const(mg,len); |
748a9306 LW |
1360 | if (*s == '_') { |
1361 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1362 | svp = &PL_diehook; |
748a9306 | 1363 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1364 | svp = &PL_warnhook; |
748a9306 | 1365 | else |
cea2e8a9 | 1366 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1367 | i = 0; |
4633a7c4 | 1368 | if (*svp) { |
2d4fcd5e | 1369 | to_dec = *svp; |
4633a7c4 LW |
1370 | *svp = 0; |
1371 | } | |
748a9306 LW |
1372 | } |
1373 | else { | |
1374 | i = whichsig(s); /* ...no, a brick */ | |
86d86cad | 1375 | if (i <= 0) { |
e476b1b5 | 1376 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1377 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1378 | return 0; |
1379 | } | |
2d4fcd5e AJ |
1380 | #ifdef HAS_SIGPROCMASK |
1381 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1382 | sigemptyset(&set); | |
1383 | sigaddset(&set,i); | |
1384 | sigprocmask(SIG_BLOCK, &set, &save); | |
1385 | ENTER; | |
1386 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1387 | SAVEFREESV(save_sv); | |
1388 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1389 | #endif | |
1390 | PERL_ASYNC_CHECK(); | |
2e34cc90 | 1391 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
27da23d5 | 1392 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2e34cc90 | 1393 | #endif |
23ada85b | 1394 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1395 | PL_sig_ignoring[i] = 0; |
85b332e2 | 1396 | #endif |
2e34cc90 | 1397 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1398 | PL_sig_defaulting[i] = 0; |
2e34cc90 | 1399 | #endif |
22c35a8c | 1400 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1401 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1402 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1403 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1404 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1405 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1406 | } |
a0d0e21e | 1407 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1408 | if (i) { |
5c1546dc | 1409 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1410 | #ifdef HAS_SIGPROCMASK |
1411 | LEAVE; | |
1412 | #endif | |
1413 | } | |
748a9306 LW |
1414 | else |
1415 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1416 | if(to_dec) |
1417 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1418 | return 0; |
1419 | } | |
e72dc28c | 1420 | s = SvPV_force(sv,len); |
748a9306 | 1421 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1422 | if (i) { |
23ada85b | 1423 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1424 | PL_sig_ignoring[i] = 1; |
5c1546dc | 1425 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1426 | #else |
ff68c719 | 1427 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1428 | #endif |
2d4fcd5e | 1429 | } |
748a9306 LW |
1430 | } |
1431 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1432 | if (i) | |
2e34cc90 CL |
1433 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1434 | { | |
27da23d5 | 1435 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1436 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1437 | } |
1438 | #else | |
ff68c719 | 1439 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1440 | #endif |
748a9306 | 1441 | } |
79072805 | 1442 | else { |
5aabfad6 | 1443 | /* |
1444 | * We should warn if HINT_STRICT_REFS, but without | |
1445 | * access to a known hint bit in a known OP, we can't | |
1446 | * tell whether HINT_STRICT_REFS is in force or not. | |
1447 | */ | |
46fc3d4c | 1448 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1449 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1450 | if (i) |
5c1546dc | 1451 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1452 | else |
1453 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1454 | } |
2d4fcd5e AJ |
1455 | #ifdef HAS_SIGPROCMASK |
1456 | if(i) | |
1457 | LEAVE; | |
1458 | #endif | |
1459 | if(to_dec) | |
1460 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1461 | return 0; |
1462 | } | |
64ca3a65 | 1463 | #endif /* !PERL_MICRO */ |
79072805 LW |
1464 | |
1465 | int | |
864dbfa3 | 1466 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1467 | { |
dd374669 AL |
1468 | (void)sv; |
1469 | (void)mg; | |
3280af22 | 1470 | PL_sub_generation++; |
463ee0b2 LW |
1471 | return 0; |
1472 | } | |
1473 | ||
1474 | int | |
864dbfa3 | 1475 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1476 | { |
dd374669 AL |
1477 | (void)sv; |
1478 | (void)mg; | |
a0d0e21e | 1479 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1480 | PL_amagic_generation++; |
463ee0b2 | 1481 | |
a0d0e21e LW |
1482 | return 0; |
1483 | } | |
463ee0b2 | 1484 | |
946ec16e | 1485 | int |
864dbfa3 | 1486 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1487 | { |
dd374669 | 1488 | HV * const hv = (HV*)LvTARG(sv); |
6ff81951 | 1489 | I32 i = 0; |
dd374669 | 1490 | (void)mg; |
7719e241 | 1491 | |
6ff81951 | 1492 | if (hv) { |
497b47a8 JH |
1493 | (void) hv_iterinit(hv); |
1494 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1495 | i = HvKEYS(hv); | |
1496 | else { | |
1497 | while (hv_iternext(hv)) | |
1498 | i++; | |
1499 | } | |
6ff81951 GS |
1500 | } |
1501 | ||
1502 | sv_setiv(sv, (IV)i); | |
1503 | return 0; | |
1504 | } | |
1505 | ||
1506 | int | |
864dbfa3 | 1507 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1508 | { |
dd374669 | 1509 | (void)mg; |
946ec16e | 1510 | if (LvTARG(sv)) { |
1511 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1512 | } |
1513 | return 0; | |
ac27b0f5 | 1514 | } |
946ec16e | 1515 | |
e336de0d | 1516 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1517 | STATIC int |
e1ec3a88 | 1518 | S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1519 | { |
1520 | dSP; | |
463ee0b2 | 1521 | |
924508f0 GS |
1522 | PUSHMARK(SP); |
1523 | EXTEND(SP, n); | |
33c27489 | 1524 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1525 | if (n > 1) { |
93965878 | 1526 | if (mg->mg_ptr) { |
565764a8 | 1527 | if (mg->mg_len >= 0) |
79cb57f6 | 1528 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1529 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1530 | PUSHs((SV*)mg->mg_ptr); |
1531 | } | |
14befaf4 | 1532 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1533 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1534 | } |
1535 | } | |
1536 | if (n > 2) { | |
1537 | PUSHs(val); | |
88e89b8a | 1538 | } |
463ee0b2 LW |
1539 | PUTBACK; |
1540 | ||
864dbfa3 | 1541 | return call_method(meth, flags); |
946ec16e | 1542 | } |
1543 | ||
76e3520e | 1544 | STATIC int |
e1ec3a88 | 1545 | S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth) |
a0d0e21e | 1546 | { |
27da23d5 | 1547 | dVAR; dSP; |
463ee0b2 | 1548 | |
a0d0e21e LW |
1549 | ENTER; |
1550 | SAVETMPS; | |
e788e7d3 | 1551 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1552 | |
33c27489 | 1553 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1554 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1555 | } |
463ee0b2 | 1556 | |
d3acc0f7 | 1557 | POPSTACK; |
a0d0e21e LW |
1558 | FREETMPS; |
1559 | LEAVE; | |
1560 | return 0; | |
1561 | } | |
463ee0b2 | 1562 | |
a0d0e21e | 1563 | int |
864dbfa3 | 1564 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1565 | { |
a0d0e21e LW |
1566 | if (mg->mg_ptr) |
1567 | mg->mg_flags |= MGf_GSKIP; | |
58f82c5c | 1568 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1569 | return 0; |
1570 | } | |
1571 | ||
1572 | int | |
864dbfa3 | 1573 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d | 1574 | { |
27da23d5 | 1575 | dVAR; dSP; |
a60c0954 | 1576 | ENTER; |
e788e7d3 | 1577 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1578 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1579 | POPSTACK; |
a60c0954 | 1580 | LEAVE; |
463ee0b2 LW |
1581 | return 0; |
1582 | } | |
1583 | ||
1584 | int | |
864dbfa3 | 1585 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1586 | { |
a0d0e21e LW |
1587 | return magic_methpack(sv,mg,"DELETE"); |
1588 | } | |
463ee0b2 | 1589 | |
93965878 NIS |
1590 | |
1591 | U32 | |
864dbfa3 | 1592 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1593 | { |
27da23d5 | 1594 | dVAR; dSP; |
93965878 NIS |
1595 | U32 retval = 0; |
1596 | ||
1597 | ENTER; | |
1598 | SAVETMPS; | |
e788e7d3 | 1599 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1600 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1601 | sv = *PL_stack_sp--; |
a60c0954 | 1602 | retval = (U32) SvIV(sv)-1; |
93965878 | 1603 | } |
d3acc0f7 | 1604 | POPSTACK; |
93965878 NIS |
1605 | FREETMPS; |
1606 | LEAVE; | |
1607 | return retval; | |
1608 | } | |
1609 | ||
cea2e8a9 GS |
1610 | int |
1611 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e | 1612 | { |
27da23d5 | 1613 | dVAR; dSP; |
463ee0b2 | 1614 | |
e336de0d | 1615 | ENTER; |
e788e7d3 | 1616 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1617 | PUSHMARK(SP); |
33c27489 | 1618 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1619 | PUTBACK; |
864dbfa3 | 1620 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1621 | POPSTACK; |
a60c0954 | 1622 | LEAVE; |
a3bcc51e | 1623 | |
463ee0b2 LW |
1624 | return 0; |
1625 | } | |
1626 | ||
1627 | int | |
864dbfa3 | 1628 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1629 | { |
27da23d5 | 1630 | dVAR; dSP; |
35a4481c | 1631 | const char * const meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1632 | |
1633 | ENTER; | |
a0d0e21e | 1634 | SAVETMPS; |
e788e7d3 | 1635 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1636 | PUSHMARK(SP); |
1637 | EXTEND(SP, 2); | |
33c27489 | 1638 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1639 | if (SvOK(key)) |
1640 | PUSHs(key); | |
1641 | PUTBACK; | |
1642 | ||
864dbfa3 | 1643 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1644 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1645 | |
d3acc0f7 | 1646 | POPSTACK; |
a0d0e21e LW |
1647 | FREETMPS; |
1648 | LEAVE; | |
79072805 LW |
1649 | return 0; |
1650 | } | |
1651 | ||
1652 | int | |
864dbfa3 | 1653 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1654 | { |
1655 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1656 | } |
a0d0e21e | 1657 | |
a3bcc51e TP |
1658 | SV * |
1659 | Perl_magic_scalarpack(pTHX_ HV *hv, MAGIC *mg) | |
1660 | { | |
27da23d5 | 1661 | dVAR; dSP; |
a3bcc51e TP |
1662 | SV *retval = &PL_sv_undef; |
1663 | SV *tied = SvTIED_obj((SV*)hv, mg); | |
1664 | HV *pkg = SvSTASH((SV*)SvRV(tied)); | |
1665 | ||
1666 | if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) { | |
1667 | SV *key; | |
bfcb3514 | 1668 | if (HvEITER_get(hv)) |
a3bcc51e TP |
1669 | /* we are in an iteration so the hash cannot be empty */ |
1670 | return &PL_sv_yes; | |
1671 | /* no xhv_eiter so now use FIRSTKEY */ | |
1672 | key = sv_newmortal(); | |
1673 | magic_nextpack((SV*)hv, mg, key); | |
bfcb3514 | 1674 | HvEITER_set(hv, NULL); /* need to reset iterator */ |
a3bcc51e TP |
1675 | return SvOK(key) ? &PL_sv_yes : &PL_sv_no; |
1676 | } | |
1677 | ||
1678 | /* there is a SCALAR method that we can call */ | |
1679 | ENTER; | |
1680 | PUSHSTACKi(PERLSI_MAGIC); | |
1681 | PUSHMARK(SP); | |
1682 | EXTEND(SP, 1); | |
1683 | PUSHs(tied); | |
1684 | PUTBACK; | |
1685 | ||
1686 | if (call_method("SCALAR", G_SCALAR)) | |
1687 | retval = *PL_stack_sp--; | |
1688 | POPSTACK; | |
1689 | LEAVE; | |
1690 | return retval; | |
1691 | } | |
1692 | ||
a0d0e21e | 1693 | int |
864dbfa3 | 1694 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1695 | { |
1696 | OP *o; | |
1697 | I32 i; | |
1698 | GV* gv; | |
1699 | SV** svp; | |
1700 | ||
3280af22 | 1701 | gv = PL_DBline; |
79072805 | 1702 | i = SvTRUE(sv); |
188ea221 | 1703 | svp = av_fetch(GvAV(gv), |
01b8bcb7 | 1704 | atoi(MgPV_nolen_const(mg)), FALSE); |
5df8de69 DM |
1705 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1706 | /* set or clear breakpoint in the relevant control op */ | |
1707 | if (i) | |
1708 | o->op_flags |= OPf_SPECIAL; | |
1709 | else | |
1710 | o->op_flags &= ~OPf_SPECIAL; | |
1711 | } | |
79072805 LW |
1712 | return 0; |
1713 | } | |
1714 | ||
1715 | int | |
864dbfa3 | 1716 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1717 | { |
83bf042f NC |
1718 | AV *obj = (AV*)mg->mg_obj; |
1719 | if (obj) { | |
1720 | sv_setiv(sv, AvFILL(obj) + PL_curcop->cop_arybase); | |
1721 | } else { | |
1722 | SvOK_off(sv); | |
1723 | } | |
79072805 LW |
1724 | return 0; |
1725 | } | |
1726 | ||
1727 | int | |
864dbfa3 | 1728 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1729 | { |
83bf042f NC |
1730 | AV *obj = (AV*)mg->mg_obj; |
1731 | if (obj) { | |
1732 | av_fill(obj, SvIV(sv) - PL_curcop->cop_arybase); | |
1733 | } else { | |
1734 | if (ckWARN(WARN_MISC)) | |
1735 | Perl_warner(aTHX_ packWARN(WARN_MISC), | |
1736 | "Attempt to set length of freed array"); | |
1737 | } | |
1738 | return 0; | |
1739 | } | |
1740 | ||
1741 | int | |
1742 | Perl_magic_freearylen_p(pTHX_ SV *sv, MAGIC *mg) | |
1743 | { | |
53c1dcc0 | 1744 | PERL_UNUSED_ARG(sv); |
94f3782b DM |
1745 | /* during global destruction, mg_obj may already have been freed */ |
1746 | if (PL_in_clean_all) | |
1ea47f64 | 1747 | return 0; |
94f3782b | 1748 | |
83bf042f NC |
1749 | mg = mg_find (mg->mg_obj, PERL_MAGIC_arylen); |
1750 | ||
1751 | if (mg) { | |
1752 | /* arylen scalar holds a pointer back to the array, but doesn't own a | |
1753 | reference. Hence the we (the array) are about to go away with it | |
1754 | still pointing at us. Clear its pointer, else it would be pointing | |
1755 | at free memory. See the comment in sv_magic about reference loops, | |
1756 | and why it can't own a reference to us. */ | |
1757 | mg->mg_obj = 0; | |
1758 | } | |
a0d0e21e LW |
1759 | return 0; |
1760 | } | |
1761 | ||
1762 | int | |
864dbfa3 | 1763 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1764 | { |
1765 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1766 | |
a0d0e21e | 1767 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1768 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1769 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1770 | I32 i = mg->mg_len; |
7e2040f0 | 1771 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1772 | sv_pos_b2u(lsv, &i); |
1773 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1774 | return 0; |
1775 | } | |
1776 | } | |
0c34ef67 | 1777 | SvOK_off(sv); |
a0d0e21e LW |
1778 | return 0; |
1779 | } | |
1780 | ||
1781 | int | |
864dbfa3 | 1782 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1783 | { |
1784 | SV* lsv = LvTARG(sv); | |
1785 | SSize_t pos; | |
1786 | STRLEN len; | |
c00206c8 | 1787 | STRLEN ulen = 0; |
a0d0e21e LW |
1788 | |
1789 | mg = 0; | |
ac27b0f5 | 1790 | |
a0d0e21e | 1791 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1792 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1793 | if (!mg) { |
1794 | if (!SvOK(sv)) | |
1795 | return 0; | |
14befaf4 DM |
1796 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1797 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1798 | } |
1799 | else if (!SvOK(sv)) { | |
565764a8 | 1800 | mg->mg_len = -1; |
a0d0e21e LW |
1801 | return 0; |
1802 | } | |
1803 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1804 | ||
c485e607 | 1805 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1806 | |
7e2040f0 | 1807 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1808 | ulen = sv_len_utf8(lsv); |
1809 | if (ulen) | |
1810 | len = ulen; | |
a0ed51b3 LW |
1811 | } |
1812 | ||
a0d0e21e LW |
1813 | if (pos < 0) { |
1814 | pos += len; | |
1815 | if (pos < 0) | |
1816 | pos = 0; | |
1817 | } | |
eb160463 | 1818 | else if (pos > (SSize_t)len) |
a0d0e21e | 1819 | pos = len; |
a0ed51b3 LW |
1820 | |
1821 | if (ulen) { | |
1822 | I32 p = pos; | |
1823 | sv_pos_u2b(lsv, &p, 0); | |
1824 | pos = p; | |
1825 | } | |
727405f8 | 1826 | |
565764a8 | 1827 | mg->mg_len = pos; |
71be2cbc | 1828 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1829 | |
79072805 LW |
1830 | return 0; |
1831 | } | |
1832 | ||
1833 | int | |
864dbfa3 | 1834 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1835 | { |
dd374669 | 1836 | (void)mg; |
8646b087 | 1837 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1838 | SvFAKE_off(sv); | |
946ec16e | 1839 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1840 | SvFAKE_on(sv); |
1841 | } | |
1842 | else | |
946ec16e | 1843 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1844 | return 0; |
1845 | } | |
1846 | ||
1847 | int | |
864dbfa3 | 1848 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1849 | { |
79072805 | 1850 | GV* gv; |
dd374669 | 1851 | (void)mg; |
7a5fd60d | 1852 | |
79072805 LW |
1853 | if (!SvOK(sv)) |
1854 | return 0; | |
7a5fd60d | 1855 | gv = gv_fetchsv(sv,TRUE, SVt_PVGV); |
79072805 LW |
1856 | if (sv == (SV*)gv) |
1857 | return 0; | |
1858 | if (GvGP(sv)) | |
88e89b8a | 1859 | gp_free((GV*)sv); |
79072805 | 1860 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1861 | return 0; |
1862 | } | |
1863 | ||
1864 | int | |
864dbfa3 | 1865 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1866 | { |
1867 | STRLEN len; | |
35a4481c | 1868 | SV * const lsv = LvTARG(sv); |
b83604b4 | 1869 | const char * const tmps = SvPV_const(lsv,len); |
6ff81951 GS |
1870 | I32 offs = LvTARGOFF(sv); |
1871 | I32 rem = LvTARGLEN(sv); | |
dd374669 | 1872 | (void)mg; |
6ff81951 | 1873 | |
9aa983d2 JH |
1874 | if (SvUTF8(lsv)) |
1875 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1876 | if (offs > (I32)len) |
6ff81951 | 1877 | offs = len; |
eb160463 | 1878 | if (rem + offs > (I32)len) |
6ff81951 GS |
1879 | rem = len - offs; |
1880 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1881 | if (SvUTF8(lsv)) |
2ef4b674 | 1882 | SvUTF8_on(sv); |
6ff81951 GS |
1883 | return 0; |
1884 | } | |
1885 | ||
1886 | int | |
864dbfa3 | 1887 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1888 | { |
9aa983d2 | 1889 | STRLEN len; |
b83604b4 | 1890 | const char *tmps = SvPV_const(sv, len); |
dd374669 | 1891 | SV * const lsv = LvTARG(sv); |
9aa983d2 JH |
1892 | I32 lvoff = LvTARGOFF(sv); |
1893 | I32 lvlen = LvTARGLEN(sv); | |
dd374669 | 1894 | (void)mg; |
075a4a2b | 1895 | |
1aa99e6b | 1896 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1897 | sv_utf8_upgrade(lsv); |
1898 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1899 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
b76f3ce2 | 1900 | LvTARGLEN(sv) = sv_len_utf8(sv); |
9aa983d2 JH |
1901 | SvUTF8_on(lsv); |
1902 | } | |
9bf12eaf | 1903 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1904 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
b76f3ce2 | 1905 | LvTARGLEN(sv) = len; |
e95af362 | 1906 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1907 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1908 | Safefree(tmps); | |
1aa99e6b | 1909 | } |
b76f3ce2 GB |
1910 | else { |
1911 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1912 | LvTARGLEN(sv) = len; | |
1913 | } | |
1914 | ||
1aa99e6b | 1915 | |
79072805 LW |
1916 | return 0; |
1917 | } | |
1918 | ||
1919 | int | |
864dbfa3 | 1920 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1921 | { |
2ddb8a4f | 1922 | TAINT_IF(mg->mg_len & 1); |
463ee0b2 LW |
1923 | return 0; |
1924 | } | |
1925 | ||
1926 | int | |
864dbfa3 | 1927 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1928 | { |
dd374669 | 1929 | (void)sv; |
2ddb8a4f | 1930 | if (PL_tainted) |
565764a8 | 1931 | mg->mg_len |= 1; |
748a9306 | 1932 | else |
565764a8 | 1933 | mg->mg_len &= ~1; |
463ee0b2 LW |
1934 | return 0; |
1935 | } | |
1936 | ||
1937 | int | |
864dbfa3 | 1938 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1939 | { |
35a4481c | 1940 | SV * const lsv = LvTARG(sv); |
dd374669 | 1941 | (void)mg; |
6ff81951 GS |
1942 | |
1943 | if (!lsv) { | |
0c34ef67 | 1944 | SvOK_off(sv); |
6ff81951 GS |
1945 | return 0; |
1946 | } | |
6ff81951 | 1947 | |
81e118e0 | 1948 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1949 | return 0; |
1950 | } | |
1951 | ||
1952 | int | |
864dbfa3 | 1953 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1954 | { |
dd374669 | 1955 | (void)mg; |
79072805 LW |
1956 | do_vecset(sv); /* XXX slurp this routine */ |
1957 | return 0; | |
1958 | } | |
1959 | ||
1960 | int | |
864dbfa3 | 1961 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1962 | { |
71be2cbc | 1963 | SV *targ = Nullsv; |
5f05dabc | 1964 | if (LvTARGLEN(sv)) { |
68dc0745 | 1965 | if (mg->mg_obj) { |
74e13ce4 | 1966 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1967 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1968 | if (he) | |
1969 | targ = HeVAL(he); | |
68dc0745 | 1970 | } |
1971 | else { | |
3c78fafa | 1972 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1973 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1974 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1975 | } | |
3280af22 | 1976 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1977 | /* somebody else defined it for us */ |
1978 | SvREFCNT_dec(LvTARG(sv)); | |
1979 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1980 | LvTARGLEN(sv) = 0; | |
1981 | SvREFCNT_dec(mg->mg_obj); | |
1982 | mg->mg_obj = Nullsv; | |
1983 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1984 | } | |
5f05dabc | 1985 | } |
71be2cbc | 1986 | else |
1987 | targ = LvTARG(sv); | |
3280af22 | 1988 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1989 | return 0; |
1990 | } | |
1991 | ||
1992 | int | |
864dbfa3 | 1993 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1994 | { |
dd374669 | 1995 | (void)mg; |
71be2cbc | 1996 | if (LvTARGLEN(sv)) |
68dc0745 | 1997 | vivify_defelem(sv); |
1998 | if (LvTARG(sv)) { | |
5f05dabc | 1999 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 2000 | SvSETMAGIC(LvTARG(sv)); |
2001 | } | |
5f05dabc | 2002 | return 0; |
2003 | } | |
2004 | ||
71be2cbc | 2005 | void |
864dbfa3 | 2006 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 2007 | { |
74e13ce4 GS |
2008 | MAGIC *mg; |
2009 | SV *value = Nullsv; | |
71be2cbc | 2010 | |
14befaf4 | 2011 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 2012 | return; |
68dc0745 | 2013 | if (mg->mg_obj) { |
74e13ce4 | 2014 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
2015 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
2016 | if (he) | |
2017 | value = HeVAL(he); | |
3280af22 | 2018 | if (!value || value == &PL_sv_undef) |
ce5030a2 | 2019 | Perl_croak(aTHX_ PL_no_helem_sv, mg->mg_obj); |
71be2cbc | 2020 | } |
68dc0745 | 2021 | else { |
2022 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 2023 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 2024 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
2025 | else { | |
2026 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 2027 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 2028 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 2029 | } |
2030 | } | |
3e3baf6d | 2031 | (void)SvREFCNT_inc(value); |
68dc0745 | 2032 | SvREFCNT_dec(LvTARG(sv)); |
2033 | LvTARG(sv) = value; | |
71be2cbc | 2034 | LvTARGLEN(sv) = 0; |
68dc0745 | 2035 | SvREFCNT_dec(mg->mg_obj); |
2036 | mg->mg_obj = Nullsv; | |
2037 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 2038 | } |
2039 | ||
2040 | int | |
864dbfa3 | 2041 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
2042 | { |
2043 | AV *av = (AV*)mg->mg_obj; | |
2044 | SV **svp = AvARRAY(av); | |
2045 | I32 i = AvFILLp(av); | |
dd374669 AL |
2046 | (void)sv; |
2047 | ||
810b8aa5 | 2048 | while (i >= 0) { |
fdc9a813 | 2049 | if (svp[i]) { |
810b8aa5 | 2050 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 | 2051 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 | 2052 | /* XXX Should we check that it hasn't changed? */ |
b162af07 | 2053 | SvRV_set(svp[i], 0); |
0c34ef67 | 2054 | SvOK_off(svp[i]); |
810b8aa5 | 2055 | SvWEAKREF_off(svp[i]); |
fdc9a813 | 2056 | svp[i] = Nullsv; |
810b8aa5 GS |
2057 | } |
2058 | i--; | |
2059 | } | |
d99b02a1 | 2060 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
2061 | return 0; |
2062 | } | |
2063 | ||
2064 | int | |
864dbfa3 | 2065 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 2066 | { |
565764a8 | 2067 | mg->mg_len = -1; |
c6496cc7 | 2068 | SvSCREAM_off(sv); |
93a17b20 LW |
2069 | return 0; |
2070 | } | |
2071 | ||
2072 | int | |
864dbfa3 | 2073 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2074 | { |
dd374669 | 2075 | (void)mg; |
14befaf4 | 2076 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
2077 | SvVALID_off(sv); |
2078 | return 0; | |
2079 | } | |
2080 | ||
2081 | int | |
864dbfa3 | 2082 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 2083 | { |
dd374669 | 2084 | (void)mg; |
14befaf4 | 2085 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 2086 | SvCOMPILED_off(sv); |
2087 | return 0; | |
2088 | } | |
2089 | ||
2090 | int | |
864dbfa3 | 2091 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2092 | { |
35a4481c | 2093 | const struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
2094 | |
2095 | if (uf && uf->uf_set) | |
24f81a43 | 2096 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
2097 | return 0; |
2098 | } | |
2099 | ||
c277df42 | 2100 | int |
faf82a0b AE |
2101 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
2102 | { | |
dd374669 | 2103 | (void)mg; |
faf82a0b AE |
2104 | sv_unmagic(sv, PERL_MAGIC_qr); |
2105 | return 0; | |
2106 | } | |
2107 | ||
2108 | int | |
864dbfa3 | 2109 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
2110 | { |
2111 | regexp *re = (regexp *)mg->mg_obj; | |
2112 | ReREFCNT_dec(re); | |
dd374669 | 2113 | (void)sv; |
c277df42 IZ |
2114 | return 0; |
2115 | } | |
2116 | ||
7a4c00b4 | 2117 | #ifdef USE_LOCALE_COLLATE |
79072805 | 2118 | int |
864dbfa3 | 2119 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 2120 | { |
2121 | /* | |
838b5b74 | 2122 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 2123 | * and vanished with a faint plop. |
2124 | */ | |
dd374669 | 2125 | (void)sv; |
7a4c00b4 | 2126 | if (mg->mg_ptr) { |
2127 | Safefree(mg->mg_ptr); | |
2128 | mg->mg_ptr = NULL; | |
565764a8 | 2129 | mg->mg_len = -1; |
7a4c00b4 | 2130 | } |
bbce6d69 | 2131 | return 0; |
2132 | } | |
7a4c00b4 | 2133 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 2134 | |
7e8c5dac HS |
2135 | /* Just clear the UTF-8 cache data. */ |
2136 | int | |
2137 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
2138 | { | |
dd374669 | 2139 | (void)sv; |
7e8c5dac HS |
2140 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
2141 | mg->mg_ptr = 0; | |
2142 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
2143 | return 0; | |
2144 | } | |
2145 | ||
bbce6d69 | 2146 | int |
864dbfa3 | 2147 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2148 | { |
e1ec3a88 | 2149 | register const char *s; |
79072805 | 2150 | I32 i; |
8990e307 | 2151 | STRLEN len; |
79072805 | 2152 | switch (*mg->mg_ptr) { |
748a9306 | 2153 | case '\001': /* ^A */ |
3280af22 | 2154 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 2155 | break; |
49460fe6 | 2156 | case '\003': /* ^C */ |
eb160463 | 2157 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
2158 | break; |
2159 | ||
79072805 | 2160 | case '\004': /* ^D */ |
b4ab917c | 2161 | #ifdef DEBUGGING |
b83604b4 | 2162 | s = SvPV_nolen_const(sv); |
ddcf8bc1 | 2163 | PL_debug = get_debug_opts(&s, 0) | DEBUG_TOP_FLAG; |
79072805 | 2164 | DEBUG_x(dump_all()); |
b4ab917c DM |
2165 | #else |
2166 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
2167 | #endif | |
79072805 | 2168 | break; |
28f23441 | 2169 | case '\005': /* ^E */ |
d0063567 | 2170 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2171 | #ifdef MACOS_TRADITIONAL |
d0063567 | 2172 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2173 | #else |
cd39f2b6 | 2174 | # ifdef VMS |
d0063567 | 2175 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2176 | # else |
cd39f2b6 | 2177 | # ifdef WIN32 |
d0063567 | 2178 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2179 | # else |
9fed8b87 | 2180 | # ifdef OS2 |
d0063567 | 2181 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2182 | # else |
d0063567 DK |
2183 | /* will anyone ever use this? */ |
2184 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2185 | # endif |
048c1ddf IZ |
2186 | # endif |
2187 | # endif | |
22fae026 | 2188 | #endif |
d0063567 DK |
2189 | } |
2190 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2191 | if (PL_encoding) | |
2192 | SvREFCNT_dec(PL_encoding); | |
2193 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2194 | PL_encoding = newSVsv(sv); | |
2195 | } | |
2196 | else { | |
2197 | PL_encoding = Nullsv; | |
2198 | } | |
2199 | } | |
2200 | break; | |
79072805 | 2201 | case '\006': /* ^F */ |
3280af22 | 2202 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2203 | break; |
a0d0e21e | 2204 | case '\010': /* ^H */ |
3280af22 | 2205 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2206 | break; |
9d116dd7 | 2207 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2208 | if (PL_inplace) |
2209 | Safefree(PL_inplace); | |
79072805 | 2210 | if (SvOK(sv)) |
2e0de35c | 2211 | PL_inplace = savesvpv(sv); |
79072805 | 2212 | else |
3280af22 | 2213 | PL_inplace = Nullch; |
79072805 | 2214 | break; |
28f23441 | 2215 | case '\017': /* ^O */ |
ac27b0f5 | 2216 | if (*(mg->mg_ptr+1) == '\0') { |
1bf29663 | 2217 | if (PL_osname) { |
ac27b0f5 | 2218 | Safefree(PL_osname); |
1bf29663 DM |
2219 | PL_osname = Nullch; |
2220 | } | |
3511154c DM |
2221 | if (SvOK(sv)) { |
2222 | TAINT_PROPER("assigning to $^O"); | |
2e0de35c | 2223 | PL_osname = savesvpv(sv); |
3511154c | 2224 | } |
ac27b0f5 NIS |
2225 | } |
2226 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2227 | if (!PL_compiling.cop_io) | |
2228 | PL_compiling.cop_io = newSVsv(sv); | |
2229 | else | |
2230 | sv_setsv(PL_compiling.cop_io,sv); | |
2231 | } | |
28f23441 | 2232 | break; |
79072805 | 2233 | case '\020': /* ^P */ |
3280af22 | 2234 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
f2a7f298 | 2235 | if (PL_perldb && !PL_DBsingle) |
1ee4443e | 2236 | init_debugger(); |
79072805 LW |
2237 | break; |
2238 | case '\024': /* ^T */ | |
88e89b8a | 2239 | #ifdef BIG_TIME |
6b88bc9c | 2240 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2241 | #else |
3280af22 | 2242 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2243 | #endif |
79072805 | 2244 | break; |
fde18df1 | 2245 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2246 | if (*(mg->mg_ptr+1) == '\0') { |
2247 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2248 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2249 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2250 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2251 | } |
599cee73 | 2252 | } |
0a378802 | 2253 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2254 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2255 | if (!SvPOK(sv) && PL_localizing) { |
2256 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2257 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2258 | break; |
2259 | } | |
f4fc7782 | 2260 | { |
b5477537 | 2261 | STRLEN len, i; |
d3a7d8c7 | 2262 | int accumulate = 0 ; |
f4fc7782 | 2263 | int any_fatals = 0 ; |
b83604b4 | 2264 | const char * const ptr = SvPV_const(sv, len) ; |
f4fc7782 JH |
2265 | for (i = 0 ; i < len ; ++i) { |
2266 | accumulate |= ptr[i] ; | |
2267 | any_fatals |= (ptr[i] & 0xAA) ; | |
2268 | } | |
d3a7d8c7 GS |
2269 | if (!accumulate) |
2270 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2271 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2272 | PL_compiling.cop_warnings = pWARN_ALL; | |
2273 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2274 | } |
d3a7d8c7 GS |
2275 | else { |
2276 | if (specialWARN(PL_compiling.cop_warnings)) | |
2277 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2278 | else | |
2279 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2280 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2281 | PL_dowarn |= G_WARN_ONCE ; | |
2282 | } | |
f4fc7782 | 2283 | |
d3a7d8c7 | 2284 | } |
4438c4b7 | 2285 | } |
971a9dd3 | 2286 | } |
79072805 LW |
2287 | break; |
2288 | case '.': | |
3280af22 NIS |
2289 | if (PL_localizing) { |
2290 | if (PL_localizing == 1) | |
7766f137 | 2291 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2292 | } |
3280af22 | 2293 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2294 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2295 | break; |
2296 | case '^': | |
3280af22 | 2297 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2298 | s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
7a5fd60d | 2299 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv,TRUE, SVt_PVIO); |
79072805 LW |
2300 | break; |
2301 | case '~': | |
3280af22 | 2302 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2303 | s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
7a5fd60d | 2304 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv,TRUE, SVt_PVIO); |
79072805 LW |
2305 | break; |
2306 | case '=': | |
632db599 | 2307 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2308 | break; |
2309 | case '-': | |
632db599 | 2310 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2311 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2312 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2313 | break; |
2314 | case '%': | |
632db599 | 2315 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2316 | break; |
2317 | case '|': | |
4b65379b | 2318 | { |
3280af22 | 2319 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2320 | if(!io) |
2321 | break; | |
4b65379b CS |
2322 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2323 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2324 | else { | |
2325 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2326 | PerlIO *ofp = IoOFP(io); | |
2327 | if (ofp) | |
2328 | (void)PerlIO_flush(ofp); | |
2329 | IoFLAGS(io) |= IOf_FLUSH; | |
2330 | } | |
2331 | } | |
79072805 LW |
2332 | } |
2333 | break; | |
79072805 | 2334 | case '/': |
3280af22 | 2335 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2336 | PL_rs = newSVsv(sv); |
79072805 LW |
2337 | break; |
2338 | case '\\': | |
7889fe52 NIS |
2339 | if (PL_ors_sv) |
2340 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2341 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2342 | PL_ors_sv = newSVsv(sv); |
009c130f | 2343 | } |
e3c19b7b | 2344 | else { |
7889fe52 | 2345 | PL_ors_sv = Nullsv; |
e3c19b7b | 2346 | } |
79072805 LW |
2347 | break; |
2348 | case ',': | |
7889fe52 NIS |
2349 | if (PL_ofs_sv) |
2350 | SvREFCNT_dec(PL_ofs_sv); | |
2351 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2352 | PL_ofs_sv = newSVsv(sv); | |
2353 | } | |
2354 | else { | |
2355 | PL_ofs_sv = Nullsv; | |
2356 | } | |
79072805 | 2357 | break; |
79072805 | 2358 | case '[': |
3280af22 | 2359 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2360 | break; |
2361 | case '?': | |
ff0cee69 | 2362 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2363 | if (PL_localizing == 2) { |
2364 | PL_statusvalue = LvTARGOFF(sv); | |
2365 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2366 | } |
2367 | else | |
2368 | #endif | |
2369 | #ifdef VMSISH_STATUS | |
2370 | if (VMSISH_STATUS) | |
2371 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2372 | else | |
2373 | #endif | |
e5218da5 | 2374 | STATUS_UNIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2375 | break; |
2376 | case '!': | |
93189314 JH |
2377 | { |
2378 | #ifdef VMS | |
2379 | # define PERL_VMS_BANG vaxc$errno | |
2380 | #else | |
2381 | # define PERL_VMS_BANG 0 | |
2382 | #endif | |
91487cfc | 2383 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2384 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2385 | } | |
79072805 LW |
2386 | break; |
2387 | case '<': | |
3280af22 NIS |
2388 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2389 | if (PL_delaymagic) { | |
2390 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2391 | break; /* don't do magic till later */ |
2392 | } | |
2393 | #ifdef HAS_SETRUID | |
b28d0864 | 2394 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2395 | #else |
2396 | #ifdef HAS_SETREUID | |
3280af22 | 2397 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2398 | #else |
85e6fe83 | 2399 | #ifdef HAS_SETRESUID |
b28d0864 | 2400 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2401 | #else |
75870ed3 | 2402 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2403 | #ifdef PERL_DARWIN | |
2404 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2405 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2406 | (void)PerlProc_setuid(0); | |
2407 | #endif | |
b28d0864 | 2408 | (void)PerlProc_setuid(PL_uid); |
75870ed3 | 2409 | } else { |
d8eceb89 | 2410 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2411 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2412 | } |
79072805 LW |
2413 | #endif |
2414 | #endif | |
85e6fe83 | 2415 | #endif |
d8eceb89 | 2416 | PL_uid = PerlProc_getuid(); |
3280af22 | 2417 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2418 | break; |
2419 | case '>': | |
3280af22 NIS |
2420 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2421 | if (PL_delaymagic) { | |
2422 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2423 | break; /* don't do magic till later */ |
2424 | } | |
2425 | #ifdef HAS_SETEUID | |
3280af22 | 2426 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2427 | #else |
2428 | #ifdef HAS_SETREUID | |
b28d0864 | 2429 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2430 | #else |
2431 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2432 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2433 | #else |
b28d0864 NIS |
2434 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2435 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2436 | else { |
e8ee3774 | 2437 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2438 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2439 | } |
79072805 LW |
2440 | #endif |
2441 | #endif | |
85e6fe83 | 2442 | #endif |
d8eceb89 | 2443 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2444 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2445 | break; |
2446 | case '(': | |
3280af22 NIS |
2447 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2448 | if (PL_delaymagic) { | |
2449 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2450 | break; /* don't do magic till later */ |
2451 | } | |
2452 | #ifdef HAS_SETRGID | |
b28d0864 | 2453 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2454 | #else |
2455 | #ifdef HAS_SETREGID | |
3280af22 | 2456 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2457 | #else |
2458 | #ifdef HAS_SETRESGID | |
b28d0864 | 2459 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2460 | #else |
b28d0864 NIS |
2461 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2462 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2463 | else { |
d8eceb89 | 2464 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2465 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2466 | } |
79072805 LW |
2467 | #endif |
2468 | #endif | |
85e6fe83 | 2469 | #endif |
d8eceb89 | 2470 | PL_gid = PerlProc_getgid(); |
3280af22 | 2471 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2472 | break; |
2473 | case ')': | |
5cd24f17 | 2474 | #ifdef HAS_SETGROUPS |
2475 | { | |
b83604b4 | 2476 | const char *p = SvPV_const(sv, len); |
5cd24f17 | 2477 | Groups_t gary[NGROUPS]; |
2478 | ||
5cd24f17 | 2479 | while (isSPACE(*p)) |
2480 | ++p; | |
2d4389e4 | 2481 | PL_egid = Atol(p); |
5cd24f17 | 2482 | for (i = 0; i < NGROUPS; ++i) { |
2483 | while (*p && !isSPACE(*p)) | |
2484 | ++p; | |
2485 | while (isSPACE(*p)) | |
2486 | ++p; | |
2487 | if (!*p) | |
2488 | break; | |
2d4389e4 | 2489 | gary[i] = Atol(p); |
5cd24f17 | 2490 | } |
8cc95fdb | 2491 | if (i) |
2492 | (void)setgroups(i, gary); | |
5cd24f17 | 2493 | } |
2494 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2495 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2496 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2497 | if (PL_delaymagic) { |
2498 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2499 | break; /* don't do magic till later */ |
2500 | } | |
2501 | #ifdef HAS_SETEGID | |
3280af22 | 2502 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2503 | #else |
2504 | #ifdef HAS_SETREGID | |
b28d0864 | 2505 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2506 | #else |
2507 | #ifdef HAS_SETRESGID | |
b28d0864 | 2508 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2509 | #else |
b28d0864 NIS |
2510 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2511 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2512 | else { |
d8eceb89 | 2513 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2514 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2515 | } |
79072805 LW |
2516 | #endif |
2517 | #endif | |
85e6fe83 | 2518 | #endif |
d8eceb89 | 2519 | PL_egid = PerlProc_getegid(); |
3280af22 | 2520 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2521 | break; |
2522 | case ':': | |
2d8e6c8d | 2523 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2524 | break; |
cd39f2b6 | 2525 | #ifndef MACOS_TRADITIONAL |
79072805 | 2526 | case '0': |
e2975953 | 2527 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2528 | #ifdef HAS_SETPROCTITLE |
2529 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2530 | * show a string from the process struct and provide | |
2531 | * the setproctitle() routine to manipulate that. */ | |
2532 | { | |
b83604b4 | 2533 | s = SvPV_const(sv, len); |
98b76f99 | 2534 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2535 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2536 | * but not the "(perl) suffix from the ps(1) |
2537 | * output, because that's what ps(1) shows if the | |
2538 | * argv[] is modified. */ | |
6f2ad931 | 2539 | setproctitle("-%s", s); |
9aad2c0e | 2540 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2541 | /* This doesn't really work if you assume that |
2542 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2543 | * because in ps(1) output the result will be like | |
2544 | * sprintf("perl: %s (perl)", s) | |
2545 | * I guess this is a security feature: | |
2546 | * one (a user process) cannot get rid of the original name. | |
2547 | * --jhi */ | |
2548 | setproctitle("%s", s); | |
2549 | # endif | |
2550 | } | |
2551 | #endif | |
17aa7f3d JH |
2552 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2553 | { | |
2554 | union pstun un; | |
b83604b4 | 2555 | s = SvPV_const(sv, len); |
6867be6d | 2556 | un.pst_command = (char *)s; |
17aa7f3d JH |
2557 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2558 | } | |
2559 | #endif | |
3cb9023d | 2560 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2561 | s = SvPV_force(sv,len); |
6f698202 AMS |
2562 | if (len >= (STRLEN)PL_origalen-1) { |
2563 | /* Longer than original, will be truncated. We assume that | |
2564 | * PL_origalen bytes are available. */ | |
2565 | Copy(s, PL_origargv[0], PL_origalen-1, char); | |
79072805 LW |
2566 | } |
2567 | else { | |
54bfe034 JH |
2568 | /* Shorter than original, will be padded. */ |
2569 | Copy(s, PL_origargv[0], len, char); | |
2570 | PL_origargv[0][len] = 0; | |
2571 | memset(PL_origargv[0] + len + 1, | |
2572 | /* Is the space counterintuitive? Yes. | |
2573 | * (You were expecting \0?) | |
3cb9023d | 2574 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 JH |
2575 | * --jhi */ |
2576 | (int)' ', | |
2577 | PL_origalen - len - 1); | |
79072805 | 2578 | } |
ad7eccf4 JD |
2579 | PL_origargv[0][PL_origalen-1] = 0; |
2580 | for (i = 1; i < PL_origargc; i++) | |
2581 | PL_origargv[i] = 0; | |
e2975953 | 2582 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2583 | break; |
cd39f2b6 | 2584 | #endif |
79072805 LW |
2585 | } |
2586 | return 0; | |
2587 | } | |
2588 | ||
2589 | I32 | |
35a4481c | 2590 | Perl_whichsig(pTHX_ const char *sig) |
79072805 | 2591 | { |
aadb217d | 2592 | register char* const* sigv; |
79072805 | 2593 | |
aadb217d | 2594 | for (sigv = (char* const*)PL_sig_name; *sigv; sigv++) |
79072805 | 2595 | if (strEQ(sig,*sigv)) |
aadb217d | 2596 | return PL_sig_num[sigv - (char* const*)PL_sig_name]; |
79072805 LW |
2597 | #ifdef SIGCLD |
2598 | if (strEQ(sig,"CHLD")) | |
2599 | return SIGCLD; | |
2600 | #endif | |
2601 | #ifdef SIGCHLD | |
2602 | if (strEQ(sig,"CLD")) | |
2603 | return SIGCHLD; | |
2604 | #endif | |
7f1236c0 | 2605 | return -1; |
79072805 LW |
2606 | } |
2607 | ||
ecfc5424 | 2608 | Signal_t |
cea2e8a9 | 2609 | Perl_sighandler(int sig) |
79072805 | 2610 | { |
1018e26f NIS |
2611 | #ifdef PERL_GET_SIG_CONTEXT |
2612 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2613 | #else |
cea2e8a9 | 2614 | dTHX; |
71d280e3 | 2615 | #endif |
79072805 | 2616 | dSP; |
00d579c5 | 2617 | GV *gv = Nullgv; |
a0d0e21e | 2618 | HV *st; |
b7953727 | 2619 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2620 | CV *cv = Nullcv; |
533c011a | 2621 | OP *myop = PL_op; |
84902520 | 2622 | U32 flags = 0; |
3280af22 | 2623 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2624 | |
3280af22 | 2625 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2626 | flags |= 1; |
3280af22 | 2627 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2628 | flags |= 4; |
3280af22 | 2629 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2630 | flags |= 16; |
2631 | ||
727405f8 | 2632 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2633 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2634 | PL_sig_name[sig]); |
2635 | exit(sig); | |
2636 | } | |
ff0cee69 | 2637 | |
84902520 TB |
2638 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2639 | infinity, so we fix 4 (in fact 5): */ | |
2640 | if (flags & 1) { | |
3280af22 | 2641 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2642 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2643 | } |
ac27b0f5 | 2644 | if (flags & 4) |
3280af22 | 2645 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2646 | if (flags & 16) |
3280af22 | 2647 | PL_scopestack_ix += 1; |
84902520 | 2648 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2649 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2650 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2651 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2652 | |
a0d0e21e | 2653 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2654 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2655 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2656 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2657 | : ((cv && CvGV(cv)) |
2658 | ? GvENAME(CvGV(cv)) | |
2659 | : "__ANON__"))); | |
2660 | goto cleanup; | |
79072805 LW |
2661 | } |
2662 | ||
22c35a8c GS |
2663 | if(PL_psig_name[sig]) { |
2664 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2665 | flags |= 64; |
df3728a2 | 2666 | #if !defined(PERL_IMPLICIT_CONTEXT) |
27da23d5 | 2667 | PL_sig_sv = sv; |
df3728a2 | 2668 | #endif |
84902520 | 2669 | } else { |
ff0cee69 | 2670 | sv = sv_newmortal(); |
22c35a8c | 2671 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2672 | } |
e336de0d | 2673 | |
e788e7d3 | 2674 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2675 | PUSHMARK(SP); |
79072805 | 2676 | PUSHs(sv); |
79072805 | 2677 | PUTBACK; |
a0d0e21e | 2678 | |
1b266415 | 2679 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2680 | |
d3acc0f7 | 2681 | POPSTACK; |
1b266415 | 2682 | if (SvTRUE(ERRSV)) { |
1d615522 | 2683 | #ifndef PERL_MICRO |
983dbef6 | 2684 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2685 | /* Handler "died", for example to get out of a restart-able read(). |
2686 | * Before we re-do that on its behalf re-enable the signal which was | |
2687 | * blocked by the system when we entered. | |
2688 | */ | |
2689 | sigset_t set; | |
2690 | sigemptyset(&set); | |
2691 | sigaddset(&set,sig); | |
2692 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2693 | #else | |
2694 | /* Not clear if this will work */ | |
2695 | (void)rsignal(sig, SIG_IGN); | |
5c1546dc | 2696 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2697 | #endif |
1d615522 | 2698 | #endif /* !PERL_MICRO */ |
5df617be | 2699 | DieNull; |
1b266415 | 2700 | } |
00d579c5 | 2701 | cleanup: |
84902520 | 2702 | if (flags & 1) |
3280af22 | 2703 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2704 | if (flags & 4) |
3280af22 | 2705 | PL_markstack_ptr--; |
84902520 | 2706 | if (flags & 16) |
3280af22 | 2707 | PL_scopestack_ix -= 1; |
84902520 TB |
2708 | if (flags & 64) |
2709 | SvREFCNT_dec(sv); | |
533c011a | 2710 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2711 | |
3280af22 NIS |
2712 | PL_Sv = tSv; /* Restore global temporaries. */ |
2713 | PL_Xpv = tXpv; | |
53bb94e2 | 2714 | return; |
79072805 | 2715 | } |
4e35701f NIS |
2716 | |
2717 | ||
51371543 | 2718 | static void |
35a4481c | 2719 | restore_magic(pTHX_ const void *p) |
51371543 | 2720 | { |
48944bdf | 2721 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2722 | SV* sv = mgs->mgs_sv; |
2723 | ||
2724 | if (!sv) | |
2725 | return; | |
2726 | ||
2727 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2728 | { | |
f8c7b90f | 2729 | #ifdef PERL_OLD_COPY_ON_WRITE |
f9701176 NC |
2730 | /* While magic was saved (and off) sv_setsv may well have seen |
2731 | this SV as a prime candidate for COW. */ | |
2732 | if (SvIsCOW(sv)) | |
2733 | sv_force_normal(sv); | |
2734 | #endif | |
2735 | ||
51371543 GS |
2736 | if (mgs->mgs_flags) |
2737 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2738 | else | |
2739 | mg_magical(sv); | |
2740 | if (SvGMAGICAL(sv)) | |
2741 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2742 | } | |
2743 | ||
2744 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2745 | ||
2746 | /* If we're still on top of the stack, pop us off. (That condition | |
2747 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2748 | * if it's being called via leave_scope.) | |
2749 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2750 | * may leave alloc gunk on the savestack, and some code | |
2751 | * (e.g. sighandler) doesn't expect that... | |
2752 | */ | |
2753 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2754 | { | |
2755 | I32 popval = SSPOPINT; | |
c76ac1ee | 2756 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2757 | PL_savestack_ix -= 2; |
2758 | popval = SSPOPINT; | |
2759 | assert(popval == SAVEt_ALLOC); | |
2760 | popval = SSPOPINT; | |
2761 | PL_savestack_ix -= popval; | |
2762 | } | |
2763 | ||
2764 | } | |
2765 | ||
2766 | static void | |
35a4481c | 2767 | unwind_handler_stack(pTHX_ const void *p) |
51371543 | 2768 | { |
27da23d5 | 2769 | dVAR; |
e1ec3a88 | 2770 | const U32 flags = *(const U32*)p; |
51371543 GS |
2771 | |
2772 | if (flags & 1) | |
2773 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2774 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2775 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 | 2776 | if (flags & 64) |
27da23d5 | 2777 | SvREFCNT_dec(PL_sig_sv); |
df3728a2 | 2778 | #endif |
51371543 | 2779 | } |
1018e26f | 2780 | |
66610fdd RGS |
2781 | /* |
2782 | * Local variables: | |
2783 | * c-indentation-style: bsd | |
2784 | * c-basic-offset: 4 | |
2785 | * indent-tabs-mode: t | |
2786 | * End: | |
2787 | * | |
37442d52 RGS |
2788 | * ex: set ts=8 sts=4 sw=4 noet: |
2789 | */ |