Commit | Line | Data |
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a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
e6906430 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
ae53e38e | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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 | |
40d34c0d SB |
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 | |
23 | give it a chance to update its internal value (get on $. writes the line | |
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 | |
26 | use of its changed value (set on $/ copies the SV's new value to the | |
27 | PL_rs global variable). | |
28 | ||
29 | Magic is implemented as a linked list of MAGIC structures attached to the | |
30 | SV. Each MAGIC struct holds the type of the magic, a pointer to an array | |
31 | of functions that implement the get(), set(), length() etc functions, | |
32 | plus space for some flags and pointers. For example, a tied variable has | |
33 | a MAGIC structure that contains a pointer to the object associated with the | |
34 | tie. | |
35 | ||
ccfc67b7 JH |
36 | */ |
37 | ||
79072805 | 38 | #include "EXTERN.h" |
864dbfa3 | 39 | #define PERL_IN_MG_C |
79072805 LW |
40 | #include "perl.h" |
41 | ||
5cd24f17 | 42 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
b7953727 JH |
43 | # ifdef I_GRP |
44 | # include <grp.h> | |
45 | # endif | |
188ea221 CS |
46 | #endif |
47 | ||
4b023f8e JC |
48 | #if defined(HAS_SETGROUPS) |
49 | # ifndef NGROUPS | |
50 | # define NGROUPS 32 | |
51 | # endif | |
52 | #endif | |
53 | ||
7223e9d8 JH |
54 | #ifdef __hpux |
55 | # include <sys/pstat.h> | |
56 | #endif | |
57 | ||
17afd9a0 NC |
58 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
59 | Signal_t Perl_csighandler_va(int sig, ...); | |
60 | #endif | |
c71a3471 JH |
61 | Signal_t Perl_csighandler(int sig); |
62 | ||
23ada85b | 63 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 64 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 65 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 66 | #endif |
2e34cc90 | 67 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 | 68 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 CL |
69 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
70 | #endif | |
85b332e2 | 71 | |
f0798ba3 OS |
72 | #ifdef __Lynx__ |
73 | /* Missing protos on LynxOS */ | |
74 | void setruid(uid_t id); | |
75 | void seteuid(uid_t id); | |
76 | void setrgid(uid_t id); | |
77 | void setegid(uid_t id); | |
78 | #endif | |
79 | ||
c07a80fd | 80 | /* |
81 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
82 | */ | |
83 | ||
84 | struct magic_state { | |
85 | SV* mgs_sv; | |
86 | U32 mgs_flags; | |
455ece5e | 87 | I32 mgs_ss_ix; |
c07a80fd | 88 | }; |
455ece5e | 89 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
90 | |
91 | STATIC void | |
8fb26106 | 92 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 93 | { |
455ece5e | 94 | MGS* mgs; |
c07a80fd | 95 | assert(SvMAGICAL(sv)); |
9947a421 NC |
96 | /* Turning READONLY off for a copy-on-write scalar (including shared |
97 | hash keys) is a bad idea. */ | |
98 | if (SvIsCOW(sv)) | |
99 | sv_force_normal_flags(sv, 0); | |
c07a80fd | 100 | |
4f1e9d25 | 101 | SAVEDESTRUCTOR_X(S_restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
102 | |
103 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 104 | mgs->mgs_sv = sv; |
105 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 106 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 107 | |
108 | SvMAGICAL_off(sv); | |
109 | SvREADONLY_off(sv); | |
d342bb89 NC |
110 | if (!(SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK))) { |
111 | /* No public flags are set, so promote any private flags to public. */ | |
112 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
113 | } | |
c07a80fd | 114 | } |
115 | ||
954c1994 GS |
116 | /* |
117 | =for apidoc mg_magical | |
118 | ||
119 | Turns on the magical status of an SV. See C<sv_magic>. | |
120 | ||
121 | =cut | |
122 | */ | |
123 | ||
8990e307 | 124 | void |
864dbfa3 | 125 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 | 126 | { |
c05e0e2f | 127 | const MAGIC* mg; |
1e7ed80e | 128 | PERL_UNUSED_CONTEXT; |
8990e307 | 129 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 130 | const MGVTBL* const vtbl = mg->mg_virtual; |
8990e307 | 131 | if (vtbl) { |
2b260de0 | 132 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
133 | SvGMAGICAL_on(sv); |
134 | if (vtbl->svt_set) | |
135 | SvSMAGICAL_on(sv); | |
2b260de0 | 136 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
137 | SvRMAGICAL_on(sv); |
138 | } | |
139 | } | |
140 | } | |
141 | ||
954c1994 GS |
142 | /* |
143 | =for apidoc mg_get | |
144 | ||
145 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
146 | ||
147 | =cut | |
148 | */ | |
149 | ||
79072805 | 150 | int |
864dbfa3 | 151 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 152 | { |
7120cae1 | 153 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
e1633da1 | 154 | const bool was_temp = (bool)SvTEMP(sv); |
fdc5445c | 155 | int have_new = 0; |
ff76feab | 156 | MAGIC *newmg, *head, *cur, *mg; |
159fdece NC |
157 | /* guard against sv having being freed midway by holding a private |
158 | reference. */ | |
159 | ||
160 | /* sv_2mortal has this side effect of turning on the TEMP flag, which can | |
161 | cause the SV's buffer to get stolen (and maybe other stuff). | |
162 | So restore it. | |
163 | */ | |
2190c7e7 | 164 | sv_2mortal(SvREFCNT_inc_simple_NN(sv)); |
159fdece NC |
165 | if (!was_temp) { |
166 | SvTEMP_off(sv); | |
167 | } | |
f414bd1d | 168 | |
455ece5e | 169 | save_magic(mgs_ix, sv); |
463ee0b2 | 170 | |
ff76feab AMS |
171 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
172 | list of magic. svt_get() may delete the current entry, add new | |
173 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
174 | ||
175 | newmg = cur = head = mg = SvMAGIC(sv); | |
176 | while (mg) { | |
7120cae1 | 177 | const MGVTBL * const vtbl = mg->mg_virtual; |
ff76feab | 178 | |
2b260de0 | 179 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 180 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
654c77f7 | 181 | |
90912255 JH |
182 | /* guard against magic having been deleted - eg FETCH calling |
183 | * untie */ | |
184 | if (!SvMAGIC(sv)) | |
185 | break; | |
654c77f7 | 186 | |
ff76feab AMS |
187 | /* Don't restore the flags for this entry if it was deleted. */ |
188 | if (mg->mg_flags & MGf_GSKIP) | |
189 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 190 | } |
ff76feab AMS |
191 | |
192 | mg = mg->mg_moremagic; | |
193 | ||
fdc5445c | 194 | if (have_new) { |
ff76feab AMS |
195 | /* Have we finished with the new entries we saw? Start again |
196 | where we left off (unless there are more new entries). */ | |
197 | if (mg == head) { | |
fdc5445c | 198 | have_new = 0; |
ff76feab AMS |
199 | mg = cur; |
200 | head = newmg; | |
201 | } | |
202 | } | |
203 | ||
204 | /* Were any new entries added? */ | |
fdc5445c NC |
205 | if (!have_new && (newmg = SvMAGIC(sv)) != head) { |
206 | have_new = 1; | |
ff76feab AMS |
207 | cur = mg; |
208 | mg = newmg; | |
760ac839 | 209 | } |
79072805 | 210 | } |
463ee0b2 | 211 | |
4f1e9d25 | 212 | restore_magic(INT2PTR(void *, (IV)mgs_ix)); |
159fdece NC |
213 | |
214 | if (SvREFCNT(sv) == 1) { | |
215 | /* We hold the last reference to this SV, which implies that the | |
216 | SV was deleted as a side effect of the routines we called. */ | |
7460c263 | 217 | SvOK_off(sv); |
159fdece | 218 | } |
79072805 LW |
219 | return 0; |
220 | } | |
221 | ||
954c1994 GS |
222 | /* |
223 | =for apidoc mg_set | |
224 | ||
225 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
226 | ||
227 | =cut | |
228 | */ | |
229 | ||
79072805 | 230 | int |
864dbfa3 | 231 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 232 | { |
7120cae1 | 233 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 234 | MAGIC* mg; |
463ee0b2 LW |
235 | MAGIC* nextmg; |
236 | ||
455ece5e | 237 | save_magic(mgs_ix, sv); |
463ee0b2 LW |
238 | |
239 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
c05e0e2f | 240 | const MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 241 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
242 | if (mg->mg_flags & MGf_GSKIP) { |
243 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 244 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 245 | } |
2b260de0 | 246 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 247 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 248 | } |
463ee0b2 | 249 | |
4f1e9d25 | 250 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
251 | return 0; |
252 | } | |
253 | ||
954c1994 GS |
254 | /* |
255 | =for apidoc mg_length | |
256 | ||
257 | Report on the SV's length. See C<sv_magic>. | |
258 | ||
259 | =cut | |
260 | */ | |
261 | ||
79072805 | 262 | U32 |
864dbfa3 | 263 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
264 | { |
265 | MAGIC* mg; | |
463ee0b2 | 266 | STRLEN len; |
463ee0b2 | 267 | |
79072805 | 268 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 269 | const MGVTBL * const vtbl = mg->mg_virtual; |
2b260de0 | 270 | if (vtbl && vtbl->svt_len) { |
7120cae1 | 271 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
455ece5e | 272 | save_magic(mgs_ix, sv); |
a0d0e21e | 273 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 274 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
4f1e9d25 | 275 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
276 | return len; |
277 | } | |
278 | } | |
279 | ||
7120cae1 | 280 | if (DO_UTF8(sv)) { |
c06c673c | 281 | const U8 *s = (U8*)SvPV_const(sv, len); |
5336c895 | 282 | len = utf8_length((U8*)s, (U8*)s + len); |
5636d518 DB |
283 | } |
284 | else | |
c06c673c | 285 | (void)SvPV_const(sv, len); |
463ee0b2 | 286 | return len; |
79072805 LW |
287 | } |
288 | ||
8fb26106 | 289 | I32 |
864dbfa3 | 290 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
291 | { |
292 | MAGIC* mg; | |
ac27b0f5 | 293 | |
93965878 | 294 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 295 | const MGVTBL* const vtbl = mg->mg_virtual; |
2b260de0 | 296 | if (vtbl && vtbl->svt_len) { |
7120cae1 AL |
297 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
298 | I32 len; | |
455ece5e | 299 | save_magic(mgs_ix, sv); |
93965878 | 300 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 301 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
4f1e9d25 | 302 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
303 | return len; |
304 | } | |
305 | } | |
306 | ||
307 | switch(SvTYPE(sv)) { | |
308 | case SVt_PVAV: | |
7120cae1 | 309 | return AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
93965878 NIS |
310 | case SVt_PVHV: |
311 | /* FIXME */ | |
312 | default: | |
cea2e8a9 | 313 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
314 | break; |
315 | } | |
316 | return 0; | |
317 | } | |
318 | ||
954c1994 GS |
319 | /* |
320 | =for apidoc mg_clear | |
321 | ||
322 | Clear something magical that the SV represents. See C<sv_magic>. | |
323 | ||
324 | =cut | |
325 | */ | |
326 | ||
79072805 | 327 | int |
864dbfa3 | 328 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 329 | { |
7120cae1 | 330 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 331 | MAGIC* mg; |
463ee0b2 | 332 | |
455ece5e | 333 | save_magic(mgs_ix, sv); |
463ee0b2 | 334 | |
79072805 | 335 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 336 | const MGVTBL* const vtbl = mg->mg_virtual; |
a0d0e21e | 337 | /* omit GSKIP -- never set here */ |
727405f8 | 338 | |
2b260de0 | 339 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 340 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 341 | } |
463ee0b2 | 342 | |
4f1e9d25 | 343 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
344 | return 0; |
345 | } | |
346 | ||
954c1994 GS |
347 | /* |
348 | =for apidoc mg_find | |
349 | ||
350 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
351 | ||
352 | =cut | |
353 | */ | |
354 | ||
93a17b20 | 355 | MAGIC* |
864dbfa3 | 356 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 | 357 | { |
1e7ed80e | 358 | PERL_UNUSED_CONTEXT; |
7120cae1 AL |
359 | if (sv) { |
360 | MAGIC *mg; | |
361 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
362 | if (mg->mg_type == type) | |
363 | return mg; | |
364 | } | |
93a17b20 | 365 | } |
5900599a | 366 | return NULL; |
93a17b20 LW |
367 | } |
368 | ||
954c1994 GS |
369 | /* |
370 | =for apidoc mg_copy | |
371 | ||
372 | Copies the magic from one SV to another. See C<sv_magic>. | |
373 | ||
374 | =cut | |
375 | */ | |
376 | ||
79072805 | 377 | int |
864dbfa3 | 378 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 379 | { |
463ee0b2 | 380 | int count = 0; |
79072805 | 381 | MAGIC* mg; |
463ee0b2 | 382 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 383 | const MGVTBL* const vtbl = mg->mg_virtual; |
68795e93 NIS |
384 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
385 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
386 | } | |
3bad88ff AL |
387 | else { |
388 | const char type = mg->mg_type; | |
389 | if (isUPPER(type)) { | |
390 | sv_magic(nsv, | |
391 | (type == PERL_MAGIC_tied) | |
392 | ? SvTIED_obj(sv, mg) | |
393 | : (type == PERL_MAGIC_regdata && mg->mg_obj) | |
394 | ? sv | |
395 | : mg->mg_obj, | |
396 | toLOWER(type), key, klen); | |
397 | count++; | |
398 | } | |
79072805 | 399 | } |
79072805 | 400 | } |
463ee0b2 | 401 | return count; |
79072805 LW |
402 | } |
403 | ||
954c1994 | 404 | /* |
74435569 NC |
405 | =for apidoc mg_localize |
406 | ||
407 | Copy some of the magic from an existing SV to new localized version of | |
408 | that SV. Container magic (eg %ENV, $1, tie) gets copied, value magic | |
409 | doesn't (eg taint, pos). | |
410 | ||
411 | =cut | |
412 | */ | |
413 | ||
414 | void | |
415 | Perl_mg_localize(pTHX_ SV *sv, SV *nsv) | |
416 | { | |
417 | MAGIC *mg; | |
418 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
71ddbee8 | 419 | const MGVTBL* const vtbl = mg->mg_virtual; |
74435569 NC |
420 | switch (mg->mg_type) { |
421 | /* value magic types: don't copy */ | |
422 | case PERL_MAGIC_bm: | |
423 | case PERL_MAGIC_fm: | |
424 | case PERL_MAGIC_regex_global: | |
425 | case PERL_MAGIC_nkeys: | |
426 | #ifdef USE_LOCALE_COLLATE | |
427 | case PERL_MAGIC_collxfrm: | |
428 | #endif | |
429 | case PERL_MAGIC_qr: | |
430 | case PERL_MAGIC_taint: | |
431 | case PERL_MAGIC_vec: | |
432 | case PERL_MAGIC_vstring: | |
433 | case PERL_MAGIC_utf8: | |
434 | case PERL_MAGIC_substr: | |
435 | case PERL_MAGIC_defelem: | |
436 | case PERL_MAGIC_arylen: | |
437 | case PERL_MAGIC_pos: | |
438 | case PERL_MAGIC_backref: | |
439 | continue; | |
440 | } | |
441 | ||
4b1af556 NC |
442 | if ((mg->mg_flags & MGf_LOCAL) && vtbl->svt_local) |
443 | (void)CALL_FPTR(vtbl->svt_local)(aTHX_ nsv, mg); | |
444 | else | |
71ddbee8 | 445 | sv_magicext(nsv, mg->mg_obj, mg->mg_type, (MGVTBL *)vtbl, |
74435569 | 446 | mg->mg_ptr, mg->mg_len); |
4b1af556 | 447 | |
74435569 NC |
448 | /* container types should remain read-only across localization */ |
449 | SvFLAGS(nsv) |= SvREADONLY(sv); | |
450 | } | |
451 | ||
452 | if (SvTYPE(nsv) >= SVt_PVMG && SvMAGIC(nsv)) { | |
453 | SvFLAGS(nsv) |= SvMAGICAL(sv); | |
454 | PL_localizing = 1; | |
455 | SvSETMAGIC(nsv); | |
456 | PL_localizing = 0; | |
457 | } | |
458 | } | |
459 | ||
460 | /* | |
954c1994 GS |
461 | =for apidoc mg_free |
462 | ||
463 | Free any magic storage used by the SV. See C<sv_magic>. | |
464 | ||
465 | =cut | |
466 | */ | |
467 | ||
79072805 | 468 | int |
864dbfa3 | 469 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
470 | { |
471 | MAGIC* mg; | |
472 | MAGIC* moremagic; | |
473 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
7120cae1 | 474 | const MGVTBL* const vtbl = mg->mg_virtual; |
79072805 | 475 | moremagic = mg->mg_moremagic; |
2b260de0 | 476 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 477 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 478 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
4a9f3d2e | 479 | if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8) |
88e89b8a | 480 | Safefree(mg->mg_ptr); |
565764a8 | 481 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 482 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 483 | } |
b881518d JH |
484 | if (mg->mg_flags & MGf_REFCOUNTED) |
485 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
486 | Safefree(mg); |
487 | } | |
a8dc4fe8 | 488 | SvMAGIC_set(sv, NULL); |
79072805 LW |
489 | return 0; |
490 | } | |
491 | ||
79072805 | 492 | #include <signal.h> |
79072805 | 493 | |
942e002e | 494 | U32 |
864dbfa3 | 495 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 496 | { |
4f1e9d25 | 497 | PERL_UNUSED_ARG(sv); |
6cef1e77 | 498 | |
8c89da26 AL |
499 | if (PL_curpm) { |
500 | register const REGEXP * const rx = PM_GETRE(PL_curpm); | |
501 | if (rx) { | |
fa7f30be YO |
502 | if (mg->mg_obj) { /* @+ */ |
503 | /* return the number possible */ | |
504 | return rx->nparens; | |
505 | } else { /* @- */ | |
506 | I32 paren = rx->lastparen; | |
507 | ||
508 | /* return the last filled */ | |
509 | while ( paren >= 0 && | |
510 | rx->startp[paren] == -1 || rx->endp[paren] == -1) | |
511 | paren--; | |
512 | return (U32)paren; | |
513 | } | |
8c89da26 | 514 | } |
8f580fb8 | 515 | } |
ac27b0f5 | 516 | |
942e002e | 517 | return (U32)-1; |
6cef1e77 IZ |
518 | } |
519 | ||
520 | int | |
864dbfa3 | 521 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 522 | { |
8c89da26 AL |
523 | if (PL_curpm) { |
524 | register const REGEXP * const rx = PM_GETRE(PL_curpm); | |
525 | if (rx) { | |
526 | register const I32 paren = mg->mg_len; | |
527 | register I32 s; | |
528 | register I32 t; | |
529 | if (paren < 0) | |
530 | return 0; | |
531 | if (paren <= (I32)rx->nparens && | |
532 | (s = rx->startp[paren]) != -1 && | |
533 | (t = rx->endp[paren]) != -1) | |
534 | { | |
535 | register I32 i; | |
536 | if (mg->mg_obj) /* @+ */ | |
537 | i = t; | |
538 | else /* @- */ | |
539 | i = s; | |
540 | ||
541 | if (i > 0 && RX_MATCH_UTF8(rx)) { | |
542 | const char * const b = rx->subbeg; | |
543 | if (b) | |
5336c895 | 544 | i = utf8_length((U8*)b, (U8*)(b+i)); |
8c89da26 | 545 | } |
727405f8 | 546 | |
8c89da26 | 547 | sv_setiv(sv, i); |
1aa99e6b | 548 | } |
8c89da26 | 549 | } |
6cef1e77 IZ |
550 | } |
551 | return 0; | |
552 | } | |
553 | ||
e4b89193 | 554 | int |
a29d06ed MG |
555 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
556 | { | |
43b2f713 AL |
557 | PERL_UNUSED_ARG(sv); |
558 | PERL_UNUSED_ARG(mg); | |
a29d06ed | 559 | Perl_croak(aTHX_ PL_no_modify); |
24c2fff4 | 560 | NORETURN_FUNCTION_END; |
a29d06ed MG |
561 | } |
562 | ||
93a17b20 | 563 | U32 |
864dbfa3 | 564 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
565 | { |
566 | register I32 paren; | |
93a17b20 | 567 | register I32 i; |
0473add9 | 568 | register const REGEXP *rx; |
a197cbdd | 569 | I32 s1, t1; |
93a17b20 LW |
570 | |
571 | switch (*mg->mg_ptr) { | |
572 | case '1': case '2': case '3': case '4': | |
573 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 574 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 575 | |
ffc61ed2 | 576 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 577 | getparen: |
eb160463 | 578 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
579 | (s1 = rx->startp[paren]) != -1 && |
580 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 581 | { |
cf93c79d | 582 | i = t1 - s1; |
a197cbdd | 583 | getlen: |
2ea5368e | 584 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
e4057cfc | 585 | const char * const s = rx->subbeg + s1; |
d7a71dc3 NC |
586 | const U8 *ep; |
587 | STRLEN el; | |
ffc61ed2 | 588 | |
6d5fa195 | 589 | i = t1 - s1; |
d7a71dc3 NC |
590 | if (is_utf8_string_loclen((U8*)s, i, &ep, &el)) |
591 | i = el; | |
a197cbdd | 592 | } |
ffc61ed2 | 593 | if (i < 0) |
0844c848 | 594 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 595 | return i; |
93a17b20 | 596 | } |
235bddc8 NIS |
597 | else { |
598 | if (ckWARN(WARN_UNINITIALIZED)) | |
599 | report_uninit(); | |
600 | } | |
601 | } | |
602 | else { | |
603 | if (ckWARN(WARN_UNINITIALIZED)) | |
604 | report_uninit(); | |
93a17b20 | 605 | } |
748a9306 | 606 | return 0; |
93a17b20 | 607 | case '+': |
aaa362c4 | 608 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 609 | paren = rx->lastparen; |
13f57bf8 CS |
610 | if (paren) |
611 | goto getparen; | |
93a17b20 | 612 | } |
748a9306 | 613 | return 0; |
a01268b5 JH |
614 | case '\016': /* ^N */ |
615 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
616 | paren = rx->lastcloseparen; | |
617 | if (paren) | |
618 | goto getparen; | |
619 | } | |
620 | return 0; | |
93a17b20 | 621 | case '`': |
aaa362c4 | 622 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
623 | if (rx->startp[0] != -1) { |
624 | i = rx->startp[0]; | |
a197cbdd GS |
625 | if (i > 0) { |
626 | s1 = 0; | |
627 | t1 = i; | |
628 | goto getlen; | |
629 | } | |
93a17b20 | 630 | } |
93a17b20 | 631 | } |
748a9306 | 632 | return 0; |
93a17b20 | 633 | case '\'': |
aaa362c4 | 634 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
635 | if (rx->endp[0] != -1) { |
636 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
637 | if (i > 0) { |
638 | s1 = rx->endp[0]; | |
639 | t1 = rx->sublen; | |
640 | goto getlen; | |
641 | } | |
93a17b20 | 642 | } |
93a17b20 | 643 | } |
748a9306 | 644 | return 0; |
93a17b20 LW |
645 | } |
646 | magic_get(sv,mg); | |
2d8e6c8d | 647 | if (!SvPOK(sv) && SvNIOK(sv)) { |
db1c9db1 | 648 | sv_2pv(sv, 0); |
2d8e6c8d | 649 | } |
93a17b20 LW |
650 | if (SvPOK(sv)) |
651 | return SvCUR(sv); | |
652 | return 0; | |
653 | } | |
654 | ||
c4f9b418 | 655 | #define SvRTRIM(sv) STMT_START { \ |
ad7e75ea PC |
656 | if (SvPOK(sv)) { \ |
657 | STRLEN len = SvCUR(sv); \ | |
658 | char * const p = SvPVX(sv); \ | |
659 | while (len > 0 && isSPACE(p[len-1])) \ | |
660 | --len; \ | |
661 | SvCUR_set(sv, len); \ | |
662 | p[len] = '\0'; \ | |
663 | } \ | |
c4f9b418 NC |
664 | } STMT_END |
665 | ||
79072805 | 666 | int |
864dbfa3 | 667 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
668 | { |
669 | register I32 paren; | |
1c89cf1a | 670 | register char *s = NULL; |
79072805 | 671 | register I32 i; |
d9f97599 | 672 | register REGEXP *rx; |
3bad88ff AL |
673 | const char * const remaining = mg->mg_ptr + 1; |
674 | const char nextchar = *remaining; | |
79072805 LW |
675 | |
676 | switch (*mg->mg_ptr) { | |
748a9306 | 677 | case '\001': /* ^A */ |
3280af22 | 678 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 679 | break; |
31a9f214 GA |
680 | case '\003': /* ^C, ^CHILD_ERROR_NATIVE */ |
681 | if (*(mg->mg_ptr+1) == '\0') { | |
682 | sv_setiv(sv, (IV)PL_minus_c); | |
683 | } | |
684 | else if (strEQ(mg->mg_ptr, "\003HILD_ERROR_NATIVE")) { | |
685 | sv_setiv(sv, (IV)STATUS_NATIVE); | |
686 | } | |
49460fe6 NIS |
687 | break; |
688 | ||
79072805 | 689 | case '\004': /* ^D */ |
aea4f609 | 690 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 691 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 692 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 693 | #endif |
79072805 | 694 | break; |
28f23441 | 695 | case '\005': /* ^E */ |
3bad88ff | 696 | if (nextchar == '\0') { |
9947a421 | 697 | #if defined(MACOS_TRADITIONAL) |
0a378802 JH |
698 | { |
699 | char msg[256]; | |
727405f8 | 700 | |
0a378802 | 701 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 702 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 703 | } |
9947a421 | 704 | #elif defined(VMS) |
0a378802 JH |
705 | { |
706 | # include <descrip.h> | |
707 | # include <starlet.h> | |
708 | char msg[255]; | |
709 | $DESCRIPTOR(msgdsc,msg); | |
710 | sv_setnv(sv,(NV) vaxc$errno); | |
711 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
712 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
713 | else | |
2a8de9e2 | 714 | sv_setpvn(sv,"",0); |
0a378802 | 715 | } |
9947a421 | 716 | #elif defined(OS2) |
0a378802 JH |
717 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
718 | sv_setnv(sv, (NV)errno); | |
719 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
720 | } else { | |
721 | if (errno != errno_isOS2) { | |
3bad88ff | 722 | const int tmp = _syserrno(); |
0a378802 JH |
723 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
724 | Perl_rc = tmp; | |
725 | } | |
726 | sv_setnv(sv, (NV)Perl_rc); | |
727 | sv_setpv(sv, os2error(Perl_rc)); | |
728 | } | |
9947a421 | 729 | #elif defined(WIN32) |
0a378802 | 730 | { |
43b2f713 | 731 | const DWORD dwErr = GetLastError(); |
0a378802 | 732 | sv_setnv(sv, (NV)dwErr); |
3bad88ff | 733 | if (dwErr) { |
0a378802 JH |
734 | PerlProc_GetOSError(sv, dwErr); |
735 | } | |
736 | else | |
2a8de9e2 | 737 | sv_setpvn(sv, "", 0); |
0a378802 JH |
738 | SetLastError(dwErr); |
739 | } | |
22fae026 | 740 | #else |
8101cb80 | 741 | { |
4f1e9d25 | 742 | const int saveerrno = errno; |
8101cb80 NC |
743 | sv_setnv(sv, (NV)errno); |
744 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
745 | errno = saveerrno; | |
746 | } | |
28f23441 | 747 | #endif |
c4f9b418 | 748 | SvRTRIM(sv); |
0a378802 JH |
749 | SvNOK_on(sv); /* what a wonderful hack! */ |
750 | } | |
3bad88ff | 751 | else if (strEQ(remaining, "NCODING")) |
0a378802 JH |
752 | sv_setsv(sv, PL_encoding); |
753 | break; | |
79072805 | 754 | case '\006': /* ^F */ |
3280af22 | 755 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 756 | break; |
a0d0e21e | 757 | case '\010': /* ^H */ |
3280af22 | 758 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 759 | break; |
9d116dd7 | 760 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
761 | if (PL_inplace) |
762 | sv_setpv(sv, PL_inplace); | |
79072805 | 763 | else |
3280af22 | 764 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 765 | break; |
ac27b0f5 | 766 | case '\017': /* ^O & ^OPEN */ |
3bad88ff | 767 | if (nextchar == '\0') { |
ac27b0f5 | 768 | sv_setpv(sv, PL_osname); |
908fffd2 NC |
769 | SvTAINTED_off(sv); |
770 | } | |
3bad88ff | 771 | else if (strEQ(remaining, "PEN")) { |
ac27b0f5 NIS |
772 | if (!PL_compiling.cop_io) |
773 | sv_setsv(sv, &PL_sv_undef); | |
774 | else { | |
775 | sv_setsv(sv, PL_compiling.cop_io); | |
776 | } | |
777 | } | |
28f23441 | 778 | break; |
79072805 | 779 | case '\020': /* ^P */ |
3280af22 | 780 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 781 | break; |
fb73857a | 782 | case '\023': /* ^S */ |
3bad88ff | 783 | if (nextchar == '\0') { |
3280af22 | 784 | if (PL_lex_state != LEX_NOTPARSING) |
7460c263 | 785 | SvOK_off(sv); |
3280af22 | 786 | else if (PL_in_eval) |
6dc8a9e4 | 787 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
788 | else |
789 | sv_setiv(sv, 0); | |
d58bf5aa | 790 | } |
fb73857a | 791 | break; |
79072805 | 792 | case '\024': /* ^T */ |
3bad88ff | 793 | if (nextchar == '\0') { |
88e89b8a | 794 | #ifdef BIG_TIME |
7c36658b | 795 | sv_setnv(sv, PL_basetime); |
88e89b8a | 796 | #else |
7c36658b | 797 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 798 | #endif |
7c36658b | 799 | } |
3bad88ff | 800 | else if (strEQ(remaining, "AINT")) |
b38fef15 JH |
801 | sv_setiv(sv, PL_tainting |
802 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
803 | : 0); | |
7c36658b | 804 | break; |
2f583b3c | 805 | case '\025': /* $^UNICODE, $^UTF8LOCALE, $^UTF8CACHE */ |
3bad88ff | 806 | if (strEQ(remaining, "NICODE")) |
f8bb70a6 | 807 | sv_setuv(sv, (UV) PL_unicode); |
3bad88ff | 808 | else if (strEQ(remaining, "TF8LOCALE")) |
4c9c322d | 809 | sv_setuv(sv, (UV) PL_utf8locale); |
2f583b3c NC |
810 | else if (strEQ(remaining, "TF8CACHE")) |
811 | sv_setiv(sv, (IV) PL_utf8cache); | |
6563884d JH |
812 | break; |
813 | case '\027': /* ^W & $^WARNING_BITS */ | |
3bad88ff | 814 | if (nextchar == '\0') |
4438c4b7 | 815 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
3bad88ff | 816 | else if (strEQ(remaining, "ARNING_BITS")) { |
4cd59068 | 817 | if (PL_compiling.cop_warnings == pWARN_NONE) { |
4438c4b7 | 818 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
4cd59068 NC |
819 | } |
820 | else if (PL_compiling.cop_warnings == pWARN_STD) { | |
821 | sv_setpvn( | |
822 | sv, | |
823 | (PL_dowarn & G_WARN_ON) ? WARN_ALLstring : WARN_NONEstring, | |
824 | WARNsize | |
825 | ); | |
826 | } | |
d3a7d8c7 | 827 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
9648d1c1 NC |
828 | /* Get the bit mask for $warnings::Bits{all}, because |
829 | * it could have been extended by warnings::register */ | |
3bad88ff | 830 | HV * const bits=get_hv("warnings::Bits", FALSE); |
5336c895 AL |
831 | if (bits) { |
832 | SV ** const bits_all = hv_fetchs(bits, "all", FALSE); | |
833 | if (bits_all) | |
834 | sv_setsv(sv, *bits_all); | |
9648d1c1 NC |
835 | } |
836 | else { | |
837 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
838 | } | |
ac27b0f5 | 839 | } |
4438c4b7 JH |
840 | else { |
841 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 842 | } |
d3a7d8c7 | 843 | SvPOK_only(sv); |
4438c4b7 | 844 | } |
79072805 LW |
845 | break; |
846 | case '1': case '2': case '3': case '4': | |
847 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 848 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
849 | I32 s1, t1; |
850 | ||
a863c7d1 MB |
851 | /* |
852 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
853 | * XXX Does the new way break anything? | |
854 | */ | |
ffc61ed2 | 855 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 856 | getparen: |
eb160463 | 857 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
858 | (s1 = rx->startp[paren]) != -1 && |
859 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 860 | { |
cf93c79d IZ |
861 | i = t1 - s1; |
862 | s = rx->subbeg + s1; | |
01ec43d0 | 863 | if (!rx->subbeg) |
c2e66d9e GS |
864 | break; |
865 | ||
13f57bf8 | 866 | getrx: |
748a9306 | 867 | if (i >= 0) { |
260c88e8 | 868 | const int oldtainted = PL_tainted; |
7b146116 | 869 | TAINT_NOT; |
cf93c79d | 870 | sv_setpvn(sv, s, i); |
7b146116 | 871 | PL_tainted = oldtainted; |
bf9e0bfe NC |
872 | if ( (rx->reganch & ROPT_CANY_SEEN) |
873 | ? (RX_MATCH_UTF8(rx) | |
874 | && (!i || is_utf8_string((U8*)s, i))) | |
875 | : (RX_MATCH_UTF8(rx)) ) | |
876 | { | |
7e2040f0 | 877 | SvUTF8_on(sv); |
bf9e0bfe | 878 | } |
7e2040f0 GS |
879 | else |
880 | SvUTF8_off(sv); | |
5b7ea690 JH |
881 | if (PL_tainting) { |
882 | if (RX_MATCH_TAINTED(rx)) { | |
3bad88ff | 883 | MAGIC* const mg = SvMAGIC(sv); |
5b7ea690 JH |
884 | MAGIC* mgt; |
885 | PL_tainted = 1; | |
a8dc4fe8 | 886 | SvMAGIC_set(sv, mg->mg_moremagic); |
5b7ea690 JH |
887 | SvTAINT(sv); |
888 | if ((mgt = SvMAGIC(sv))) { | |
889 | mg->mg_moremagic = mgt; | |
a8dc4fe8 | 890 | SvMAGIC_set(sv, mg); |
5b7ea690 JH |
891 | } |
892 | } else | |
893 | SvTAINTED_off(sv); | |
894 | } | |
748a9306 LW |
895 | break; |
896 | } | |
79072805 | 897 | } |
79072805 | 898 | } |
3280af22 | 899 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
900 | break; |
901 | case '+': | |
aaa362c4 | 902 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 903 | paren = rx->lastparen; |
a0d0e21e LW |
904 | if (paren) |
905 | goto getparen; | |
79072805 | 906 | } |
3280af22 | 907 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 908 | break; |
a01268b5 JH |
909 | case '\016': /* ^N */ |
910 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
911 | paren = rx->lastcloseparen; | |
912 | if (paren) | |
913 | goto getparen; | |
914 | } | |
915 | sv_setsv(sv,&PL_sv_undef); | |
916 | break; | |
79072805 | 917 | case '`': |
aaa362c4 | 918 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
919 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
920 | i = rx->startp[0]; | |
13f57bf8 | 921 | goto getrx; |
79072805 | 922 | } |
79072805 | 923 | } |
3280af22 | 924 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
925 | break; |
926 | case '\'': | |
aaa362c4 | 927 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
928 | if (rx->subbeg && rx->endp[0] != -1) { |
929 | s = rx->subbeg + rx->endp[0]; | |
930 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 931 | goto getrx; |
79072805 | 932 | } |
79072805 | 933 | } |
3280af22 | 934 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
935 | break; |
936 | case '.': | |
3280af22 | 937 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 938 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 | 939 | } |
79072805 LW |
940 | break; |
941 | case '?': | |
809a5acc | 942 | { |
809a5acc | 943 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 944 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
945 | LvTARGOFF(sv) = PL_statusvalue; |
946 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 947 | #endif |
809a5acc | 948 | } |
79072805 LW |
949 | break; |
950 | case '^': | |
8f34e12f JH |
951 | if (GvIOp(PL_defoutgv)) |
952 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
953 | if (s) |
954 | sv_setpv(sv,s); | |
955 | else { | |
3280af22 | 956 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
957 | sv_catpv(sv,"_TOP"); |
958 | } | |
959 | break; | |
960 | case '~': | |
8f34e12f JH |
961 | if (GvIOp(PL_defoutgv)) |
962 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 963 | if (!s) |
3280af22 | 964 | s = GvENAME(PL_defoutgv); |
79072805 LW |
965 | sv_setpv(sv,s); |
966 | break; | |
79072805 | 967 | case '=': |
8f34e12f JH |
968 | if (GvIOp(PL_defoutgv)) |
969 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
970 | break; |
971 | case '-': | |
8f34e12f JH |
972 | if (GvIOp(PL_defoutgv)) |
973 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
974 | break; |
975 | case '%': | |
8f34e12f JH |
976 | if (GvIOp(PL_defoutgv)) |
977 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 | 978 | break; |
79072805 LW |
979 | case ':': |
980 | break; | |
981 | case '/': | |
982 | break; | |
983 | case '[': | |
620e3b3d | 984 | sv_setiv(sv, (IV)CopARYBASE_get(PL_curcop)); |
79072805 LW |
985 | break; |
986 | case '|': | |
8f34e12f JH |
987 | if (GvIOp(PL_defoutgv)) |
988 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
989 | break; |
990 | case ',': | |
79072805 LW |
991 | break; |
992 | case '\\': | |
b2ce0fda | 993 | if (PL_ors_sv) |
734593ba | 994 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
995 | break; |
996 | case '#': | |
3280af22 | 997 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
998 | break; |
999 | case '!': | |
a5f75d66 | 1000 | #ifdef VMS |
65202027 | 1001 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 1002 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 1003 | #else |
88e89b8a | 1004 | { |
4f1e9d25 | 1005 | const int saveerrno = errno; |
65202027 | 1006 | sv_setnv(sv, (NV)errno); |
88e89b8a | 1007 | #ifdef OS2 |
ed344e4f IZ |
1008 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
1009 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 1010 | else |
a5f75d66 | 1011 | #endif |
2304df62 | 1012 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 1013 | errno = saveerrno; |
1014 | } | |
1015 | #endif | |
c4f9b418 | 1016 | SvRTRIM(sv); |
946ec16e | 1017 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
1018 | break; |
1019 | case '<': | |
3280af22 | 1020 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
1021 | break; |
1022 | case '>': | |
3280af22 | 1023 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
1024 | break; |
1025 | case '(': | |
3280af22 | 1026 | sv_setiv(sv, (IV)PL_gid); |
79072805 LW |
1027 | goto add_groups; |
1028 | case ')': | |
3280af22 | 1029 | sv_setiv(sv, (IV)PL_egid); |
79072805 | 1030 | add_groups: |
79072805 | 1031 | #ifdef HAS_GETGROUPS |
79072805 | 1032 | { |
4b023f8e | 1033 | Groups_t *gary = NULL; |
145ab0cc | 1034 | I32 i, num_groups = getgroups(0, gary); |
4b023f8e JC |
1035 | Newx(gary, num_groups, Groups_t); |
1036 | num_groups = getgroups(num_groups, gary); | |
145ab0cc NC |
1037 | for (i = 0; i < num_groups; i++) |
1038 | Perl_sv_catpvf(aTHX_ sv, " %"IVdf, (IV)gary[i]); | |
4b023f8e | 1039 | Safefree(gary); |
79072805 | 1040 | } |
155aba94 | 1041 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
145ab0cc | 1042 | #endif |
79072805 LW |
1043 | break; |
1044 | case '*': | |
1045 | break; | |
cd39f2b6 | 1046 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
1047 | case '0': |
1048 | break; | |
cd39f2b6 | 1049 | #endif |
4d1ff10f | 1050 | #ifdef USE_5005THREADS |
a863c7d1 | 1051 | case '@': |
38a03e6e | 1052 | sv_setsv(sv, thr->errsv); |
a863c7d1 | 1053 | break; |
4d1ff10f | 1054 | #endif /* USE_5005THREADS */ |
79072805 | 1055 | } |
a0d0e21e | 1056 | return 0; |
79072805 LW |
1057 | } |
1058 | ||
1059 | int | |
864dbfa3 | 1060 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1061 | { |
4f1e9d25 | 1062 | struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
1063 | |
1064 | if (uf && uf->uf_val) | |
24f81a43 | 1065 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1066 | return 0; |
1067 | } | |
1068 | ||
1069 | int | |
864dbfa3 | 1070 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1071 | { |
5100483f NC |
1072 | STRLEN len = 0, klen; |
1073 | const char *s = SvOK(sv) ? SvPV_const(sv,len) : ""; | |
260c88e8 | 1074 | const char * const ptr = MgPV_const(mg,klen); |
f8b14789 | 1075 | my_setenv((char *)ptr, (char *)s); |
1e422769 | 1076 | |
a0d0e21e LW |
1077 | #ifdef DYNAMIC_ENV_FETCH |
1078 | /* We just undefd an environment var. Is a replacement */ | |
1079 | /* waiting in the wings? */ | |
1080 | if (!len) { | |
260c88e8 AL |
1081 | SV ** const valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE); |
1082 | if (valp) | |
5100483f | 1083 | s = SvOK(*valp) ? SvPV_const(*valp, len) : ""; |
a0d0e21e LW |
1084 | } |
1085 | #endif | |
1e422769 | 1086 | |
39e571d4 | 1087 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
1088 | /* And you'll never guess what the dog had */ |
1089 | /* in its mouth... */ | |
3280af22 | 1090 | if (PL_tainting) { |
1e422769 | 1091 | MgTAINTEDDIR_off(mg); |
1092 | #ifdef VMS | |
5aabfad6 | 1093 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
aa649b9f | 1094 | char pathbuf[256], eltbuf[256], *cp, *elt; |
c623ac67 | 1095 | Stat_t sbuf; |
1e422769 | 1096 | int i = 0, j = 0; |
1097 | ||
b8fbe28b | 1098 | my_strlcpy(eltbuf, s, sizeof(eltbuf)); |
aa649b9f | 1099 | elt = eltbuf; |
1e422769 | 1100 | do { /* DCL$PATH may be a search list */ |
1101 | while (1) { /* as may dev portion of any element */ | |
1102 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
1103 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
1104 | cando_by_name(S_IWUSR,0,elt) ) { | |
1105 | MgTAINTEDDIR_on(mg); | |
1106 | return 0; | |
1107 | } | |
1108 | } | |
0e2d6244 | 1109 | if ((cp = strchr(elt, ':')) != NULL) |
1e422769 | 1110 | *cp = '\0'; |
1111 | if (my_trnlnm(elt, eltbuf, j++)) | |
1112 | elt = eltbuf; | |
1113 | else | |
1114 | break; | |
1115 | } | |
1116 | j = 0; | |
1117 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
1118 | } | |
1119 | #endif /* VMS */ | |
5aabfad6 | 1120 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
4f1e9d25 | 1121 | const char * const strend = s + len; |
f952db3c NC |
1122 | #ifdef VMS /* Hmm. How do we get $Config{path_sep} from C? */ |
1123 | const char path_sep = '|'; | |
1124 | #else | |
1125 | const char path_sep = ':'; | |
1126 | #endif | |
463ee0b2 LW |
1127 | |
1128 | while (s < strend) { | |
96827780 | 1129 | char tmpbuf[256]; |
c623ac67 | 1130 | Stat_t st; |
5f74f29c | 1131 | I32 i; |
5336c895 AL |
1132 | #ifdef VMS /* Hmm. How do we get $Config{path_sep} from C? */ |
1133 | const char path_sep = '|'; | |
1134 | #else | |
1135 | const char path_sep = ':'; | |
1136 | #endif | |
96827780 | 1137 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
f952db3c | 1138 | (char *) s, (char *) strend, path_sep, &i); |
463ee0b2 | 1139 | s++; |
9f01e09a | 1140 | if (i >= (I32)sizeof tmpbuf /* too long -- assume the worst */ |
f952db3c NC |
1141 | #ifdef VMS |
1142 | || !strchr(tmpbuf, ':') /* no colon thus no device name -- assume relative path */ | |
1143 | #else | |
1144 | || *tmpbuf != '/' /* no starting slash -- assume relative path */ | |
1145 | #endif | |
c6ed36e1 | 1146 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 1147 | MgTAINTEDDIR_on(mg); |
1e422769 | 1148 | return 0; |
1149 | } | |
463ee0b2 | 1150 | } |
79072805 LW |
1151 | } |
1152 | } | |
39e571d4 | 1153 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1154 | |
79072805 LW |
1155 | return 0; |
1156 | } | |
1157 | ||
1158 | int | |
864dbfa3 | 1159 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1160 | { |
4f1e9d25 | 1161 | PERL_UNUSED_ARG(sv); |
0e2d6244 | 1162 | my_setenv((char *)MgPV_nolen_const(mg),NULL); |
85e6fe83 LW |
1163 | return 0; |
1164 | } | |
1165 | ||
88e89b8a | 1166 | int |
864dbfa3 | 1167 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1168 | { |
5d1954da | 1169 | PERL_UNUSED_ARG(mg); |
64596349 | 1170 | #if defined(VMS) |
cea2e8a9 | 1171 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1172 | #else |
3280af22 | 1173 | if (PL_localizing) { |
fb73857a | 1174 | HE* entry; |
64596349 | 1175 | my_clearenv(); |
fb73857a | 1176 | hv_iterinit((HV*)sv); |
155aba94 | 1177 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1178 | I32 keylen; |
1179 | my_setenv(hv_iterkey(entry, &keylen), | |
f8b14789 | 1180 | (char *)SvPV_nolen_const(hv_iterval((HV*)sv, entry))); |
fb73857a | 1181 | } |
1182 | } | |
1183 | #endif | |
1184 | return 0; | |
1185 | } | |
1186 | ||
1187 | int | |
864dbfa3 | 1188 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1189 | { |
64596349 AB |
1190 | PERL_UNUSED_ARG(sv); |
1191 | PERL_UNUSED_ARG(mg); | |
75a5c1c6 | 1192 | #ifndef PERL_MICRO |
64596349 | 1193 | #if defined(VMS) |
cea2e8a9 | 1194 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1195 | #else |
64596349 AB |
1196 | my_clearenv(); |
1197 | #endif | |
75a5c1c6 | 1198 | #endif /* !PERL_MICRO */ |
3e3baf6d | 1199 | return 0; |
66b1d557 HM |
1200 | } |
1201 | ||
2e34cc90 | 1202 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
fe20fd30 | 1203 | static int PL_sig_handlers_initted = 0; |
2e34cc90 | 1204 | #endif |
7719e241 | 1205 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
fe20fd30 | 1206 | static int PL_sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
85b332e2 | 1207 | #endif |
2e34cc90 | 1208 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
fe20fd30 | 1209 | static int PL_sig_defaulting[SIG_SIZE]; |
2e34cc90 | 1210 | #endif |
85b332e2 | 1211 | |
64ca3a65 | 1212 | #ifndef PERL_MICRO |
d2aaa77e JH |
1213 | #ifdef HAS_SIGPROCMASK |
1214 | static void | |
1215 | restore_sigmask(pTHX_ SV *save_sv) | |
1216 | { | |
8c89da26 | 1217 | const sigset_t * const ossetp = (const sigset_t *) SvPV_nolen_const( save_sv ); |
5336c895 | 1218 | (void)sigprocmask(SIG_SETMASK, ossetp, NULL); |
d2aaa77e JH |
1219 | } |
1220 | #endif | |
66b1d557 | 1221 | int |
864dbfa3 | 1222 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1223 | { |
88e89b8a | 1224 | /* Are we fetching a signal entry? */ |
f8b14789 | 1225 | const I32 i = whichsig((char *)MgPV_nolen_const(mg)); |
582e5fa1 | 1226 | if (i > 0) { |
22c35a8c GS |
1227 | if(PL_psig_ptr[i]) |
1228 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1229 | else { |
2190c7e7 | 1230 | Sighandler_t sigstate = rsignal_state(i); |
23ada85b | 1231 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2190c7e7 AL |
1232 | if (PL_sig_handlers_initted && PL_sig_ignoring[i]) |
1233 | sigstate = SIG_IGN; | |
2e34cc90 CL |
1234 | #endif |
1235 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
2190c7e7 AL |
1236 | if (PL_sig_handlers_initted && PL_sig_defaulting[i]) |
1237 | sigstate = SIG_DFL; | |
85b332e2 | 1238 | #endif |
88e89b8a | 1239 | /* cache state so we don't fetch it again */ |
17afd9a0 | 1240 | if(sigstate == (Sighandler_t) SIG_IGN) |
88e89b8a | 1241 | sv_setpv(sv,"IGNORE"); |
1242 | else | |
3280af22 | 1243 | sv_setsv(sv,&PL_sv_undef); |
2190c7e7 | 1244 | PL_psig_ptr[i] = SvREFCNT_inc_simple_NN(sv); |
88e89b8a | 1245 | SvTEMP_off(sv); |
1246 | } | |
1247 | } | |
1248 | return 0; | |
1249 | } | |
1250 | int | |
864dbfa3 | 1251 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1252 | { |
d2aaa77e JH |
1253 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1254 | * refactoring might be in order. | |
1255 | */ | |
4f1e9d25 AL |
1256 | register const char * const s = MgPV_nolen_const(mg); |
1257 | PERL_UNUSED_ARG(sv); | |
d2aaa77e | 1258 | if (*s == '_') { |
4358d444 | 1259 | SV** svp = NULL; |
d2aaa77e JH |
1260 | if (strEQ(s,"__DIE__")) |
1261 | svp = &PL_diehook; | |
209f66d7 | 1262 | else if (strEQ(s,"__WARN__") && PL_warnhook != PERL_WARNHOOK_FATAL) |
d2aaa77e | 1263 | svp = &PL_warnhook; |
fe20fd30 | 1264 | if (svp && *svp) { |
209f66d7 | 1265 | SV *const to_dec = *svp; |
4358d444 | 1266 | *svp = NULL; |
209f66d7 | 1267 | SvREFCNT_dec(to_dec); |
d2aaa77e JH |
1268 | } |
1269 | } | |
1270 | else { | |
d2aaa77e | 1271 | /* Are we clearing a signal entry? */ |
f8b14789 | 1272 | const I32 i = whichsig((char *)s); |
582e5fa1 | 1273 | if (i > 0) { |
d2aaa77e JH |
1274 | #ifdef HAS_SIGPROCMASK |
1275 | sigset_t set, save; | |
1276 | SV* save_sv; | |
1277 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1278 | sigemptyset(&set); | |
1279 | sigaddset(&set,i); | |
1280 | sigprocmask(SIG_BLOCK, &set, &save); | |
1281 | ENTER; | |
1282 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1283 | SAVEFREESV(save_sv); | |
1284 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1285 | #endif | |
1286 | PERL_ASYNC_CHECK(); | |
1287 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
fe20fd30 | 1288 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
d2aaa77e JH |
1289 | #endif |
1290 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
fe20fd30 | 1291 | PL_sig_defaulting[i] = 1; |
71b97453 | 1292 | (void)rsignal(i, PL_csighandlerp); |
d2aaa77e | 1293 | #else |
17afd9a0 | 1294 | (void)rsignal(i, (Sighandler_t) SIG_DFL); |
d2aaa77e JH |
1295 | #endif |
1296 | if(PL_psig_name[i]) { | |
1297 | SvREFCNT_dec(PL_psig_name[i]); | |
1298 | PL_psig_name[i]=0; | |
1299 | } | |
1300 | if(PL_psig_ptr[i]) { | |
8916b559 | 1301 | SV * const to_dec=PL_psig_ptr[i]; |
d2aaa77e JH |
1302 | PL_psig_ptr[i]=0; |
1303 | LEAVE; | |
1304 | SvREFCNT_dec(to_dec); | |
1305 | } | |
1306 | else | |
1307 | LEAVE; | |
1308 | } | |
88e89b8a | 1309 | } |
1310 | return 0; | |
1311 | } | |
3d37d572 | 1312 | |
0473add9 AL |
1313 | static void |
1314 | S_raise_signal(pTHX_ int sig) | |
0a8e0eff NIS |
1315 | { |
1316 | /* Set a flag to say this signal is pending */ | |
1317 | PL_psig_pend[sig]++; | |
1318 | /* And one to say _a_ signal is pending */ | |
1319 | PL_sig_pending = 1; | |
1320 | } | |
1321 | ||
1322 | Signal_t | |
17afd9a0 | 1323 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
0a8e0eff NIS |
1324 | Perl_csighandler(int sig) |
1325 | { | |
ead213de | 1326 | Perl_csighandler_va(sig); |
17afd9a0 NC |
1327 | } |
1328 | ||
1329 | Signal_t | |
1330 | Perl_csighandler_va(int sig, ...) | |
1331 | #else | |
1332 | Perl_csighandler(int sig) | |
1333 | #endif | |
1334 | { | |
1018e26f NIS |
1335 | #ifdef PERL_GET_SIG_CONTEXT |
1336 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1337 | #else | |
85b332e2 CL |
1338 | dTHX; |
1339 | #endif | |
23ada85b | 1340 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
71b97453 | 1341 | (void) rsignal(sig, PL_csighandlerp); |
fe20fd30 | 1342 | if (PL_sig_ignoring[sig]) return; |
85b332e2 | 1343 | #endif |
2e34cc90 | 1344 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
fe20fd30 | 1345 | if (PL_sig_defaulting[sig]) |
2e34cc90 CL |
1346 | #ifdef KILL_BY_SIGPRC |
1347 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1348 | #else | |
1349 | exit(1); | |
1350 | #endif | |
1351 | #endif | |
05e11b74 NC |
1352 | if ( |
1353 | #ifdef SIGILL | |
1354 | sig == SIGILL || | |
1355 | #endif | |
1356 | #ifdef SIGBUS | |
1357 | sig == SIGBUS || | |
1358 | #endif | |
1359 | #ifdef SIGSEGV | |
1360 | sig == SIGSEGV || | |
1361 | #endif | |
1362 | (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)) | |
5835a535 JH |
1363 | /* Call the perl level handler now-- |
1364 | * with risk we may be in malloc() etc. */ | |
1365 | (*PL_sighandlerp)(sig); | |
1366 | else | |
0473add9 | 1367 | S_raise_signal(aTHX_ sig); |
0a8e0eff NIS |
1368 | } |
1369 | ||
2e34cc90 CL |
1370 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1371 | void | |
1372 | Perl_csighandler_init(void) | |
1373 | { | |
1374 | int sig; | |
fe20fd30 | 1375 | if (PL_sig_handlers_initted) return; |
2e34cc90 CL |
1376 | |
1377 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1378 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1379 | dTHX; |
fe20fd30 | 1380 | PL_sig_defaulting[sig] = 1; |
71b97453 | 1381 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1382 | #endif |
1383 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
fe20fd30 | 1384 | PL_sig_ignoring[sig] = 0; |
2e34cc90 CL |
1385 | #endif |
1386 | } | |
fe20fd30 | 1387 | PL_sig_handlers_initted = 1; |
2e34cc90 CL |
1388 | } |
1389 | #endif | |
1390 | ||
0a8e0eff NIS |
1391 | void |
1392 | Perl_despatch_signals(pTHX) | |
1393 | { | |
1394 | int sig; | |
1395 | PL_sig_pending = 0; | |
1396 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1397 | if (PL_psig_pend[sig]) { | |
5835a535 JH |
1398 | PERL_BLOCKSIG_ADD(set, sig); |
1399 | PL_psig_pend[sig] = 0; | |
1400 | PERL_BLOCKSIG_BLOCK(set); | |
0a8e0eff | 1401 | (*PL_sighandlerp)(sig); |
5835a535 | 1402 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1403 | } |
1404 | } | |
1405 | } | |
1406 | ||
85e6fe83 | 1407 | int |
864dbfa3 | 1408 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1409 | { |
79072805 | 1410 | I32 i; |
4358d444 | 1411 | SV** svp = NULL; |
d2aaa77e JH |
1412 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1413 | * effects (due to closures). We must make sure that the new disposition | |
1414 | * is in place before it is called. | |
1415 | */ | |
4358d444 | 1416 | SV* to_dec = NULL; |
e72dc28c | 1417 | STRLEN len; |
d2aaa77e JH |
1418 | #ifdef HAS_SIGPROCMASK |
1419 | sigset_t set, save; | |
1420 | SV* save_sv; | |
1421 | #endif | |
a0d0e21e | 1422 | |
23c2bb70 | 1423 | register const char *s = MgPV_const(mg,len); |
748a9306 LW |
1424 | if (*s == '_') { |
1425 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1426 | svp = &PL_diehook; |
748a9306 | 1427 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1428 | svp = &PL_warnhook; |
748a9306 | 1429 | else |
cea2e8a9 | 1430 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1431 | i = 0; |
4633a7c4 | 1432 | if (*svp) { |
209f66d7 NC |
1433 | if (*svp != PERL_WARNHOOK_FATAL) |
1434 | to_dec = *svp; | |
4358d444 | 1435 | *svp = NULL; |
4633a7c4 | 1436 | } |
748a9306 LW |
1437 | } |
1438 | else { | |
f8b14789 | 1439 | i = whichsig((char *)s); /* ...no, a brick */ |
2098fb77 | 1440 | if (i <= 0) { |
e476b1b5 | 1441 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1442 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1443 | return 0; |
1444 | } | |
d2aaa77e JH |
1445 | #ifdef HAS_SIGPROCMASK |
1446 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1447 | sigemptyset(&set); | |
1448 | sigaddset(&set,i); | |
1449 | sigprocmask(SIG_BLOCK, &set, &save); | |
1450 | ENTER; | |
1451 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1452 | SAVEFREESV(save_sv); | |
1453 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1454 | #endif | |
1455 | PERL_ASYNC_CHECK(); | |
2e34cc90 | 1456 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
fe20fd30 | 1457 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2e34cc90 | 1458 | #endif |
23ada85b | 1459 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
fe20fd30 | 1460 | PL_sig_ignoring[i] = 0; |
85b332e2 | 1461 | #endif |
2e34cc90 | 1462 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
fe20fd30 | 1463 | PL_sig_defaulting[i] = 0; |
2e34cc90 | 1464 | #endif |
22c35a8c | 1465 | SvREFCNT_dec(PL_psig_name[i]); |
d2aaa77e | 1466 | to_dec = PL_psig_ptr[i]; |
2190c7e7 | 1467 | PL_psig_ptr[i] = SvREFCNT_inc_simple_NN(sv); |
88e89b8a | 1468 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1469 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1470 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1471 | } |
a0d0e21e | 1472 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
d2aaa77e | 1473 | if (i) { |
71b97453 | 1474 | (void)rsignal(i, PL_csighandlerp); |
d2aaa77e JH |
1475 | #ifdef HAS_SIGPROCMASK |
1476 | LEAVE; | |
1477 | #endif | |
1478 | } | |
748a9306 | 1479 | else |
be2d5e07 | 1480 | *svp = SvREFCNT_inc_simple_NN(sv); |
d2aaa77e JH |
1481 | if(to_dec) |
1482 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1483 | return 0; |
1484 | } | |
eac1e6fb | 1485 | s = SvOK(sv) ? SvPV_force(sv,len) : "DEFAULT"; |
748a9306 | 1486 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1487 | if (i) { |
23ada85b | 1488 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
fe20fd30 | 1489 | PL_sig_ignoring[i] = 1; |
71b97453 | 1490 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1491 | #else |
17afd9a0 | 1492 | (void)rsignal(i, (Sighandler_t) SIG_IGN); |
85b332e2 | 1493 | #endif |
d2aaa77e | 1494 | } |
748a9306 LW |
1495 | } |
1496 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1497 | if (i) | |
2e34cc90 CL |
1498 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1499 | { | |
fe20fd30 | 1500 | PL_sig_defaulting[i] = 1; |
71b97453 | 1501 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1502 | } |
1503 | #else | |
17afd9a0 | 1504 | (void)rsignal(i, (Sighandler_t) SIG_DFL); |
2e34cc90 | 1505 | #endif |
748a9306 | 1506 | } |
79072805 | 1507 | else { |
5aabfad6 | 1508 | /* |
1509 | * We should warn if HINT_STRICT_REFS, but without | |
1510 | * access to a known hint bit in a known OP, we can't | |
1511 | * tell whether HINT_STRICT_REFS is in force or not. | |
1512 | */ | |
46fc3d4c | 1513 | if (!strchr(s,':') && !strchr(s,'\'')) |
d7559646 | 1514 | Perl_sv_insert(aTHX_ sv, 0, 0, STR_WITH_LEN("main::")); |
748a9306 | 1515 | if (i) |
71b97453 | 1516 | (void)rsignal(i, PL_csighandlerp); |
748a9306 | 1517 | else |
2190c7e7 | 1518 | *svp = SvREFCNT_inc_simple_NN(sv); |
79072805 | 1519 | } |
d2aaa77e JH |
1520 | #ifdef HAS_SIGPROCMASK |
1521 | if(i) | |
1522 | LEAVE; | |
1523 | #endif | |
1524 | if(to_dec) | |
1525 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1526 | return 0; |
1527 | } | |
64ca3a65 | 1528 | #endif /* !PERL_MICRO */ |
79072805 LW |
1529 | |
1530 | int | |
864dbfa3 | 1531 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1532 | { |
4f1e9d25 AL |
1533 | PERL_UNUSED_ARG(sv); |
1534 | PERL_UNUSED_ARG(mg); | |
3280af22 | 1535 | PL_sub_generation++; |
463ee0b2 LW |
1536 | return 0; |
1537 | } | |
1538 | ||
1539 | int | |
864dbfa3 | 1540 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1541 | { |
4f1e9d25 AL |
1542 | PERL_UNUSED_ARG(sv); |
1543 | PERL_UNUSED_ARG(mg); | |
a0d0e21e | 1544 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1545 | PL_amagic_generation++; |
463ee0b2 | 1546 | |
a0d0e21e LW |
1547 | return 0; |
1548 | } | |
463ee0b2 | 1549 | |
946ec16e | 1550 | int |
864dbfa3 | 1551 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1552 | { |
0473add9 | 1553 | HV * const hv = (HV*)LvTARG(sv); |
6ff81951 | 1554 | I32 i = 0; |
4f1e9d25 | 1555 | PERL_UNUSED_ARG(mg); |
7719e241 | 1556 | |
6ff81951 | 1557 | if (hv) { |
497b47a8 JH |
1558 | (void) hv_iterinit(hv); |
1559 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1560 | i = HvKEYS(hv); | |
1561 | else { | |
1562 | while (hv_iternext(hv)) | |
1563 | i++; | |
1564 | } | |
6ff81951 GS |
1565 | } |
1566 | ||
1567 | sv_setiv(sv, (IV)i); | |
1568 | return 0; | |
1569 | } | |
1570 | ||
1571 | int | |
864dbfa3 | 1572 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1573 | { |
4f1e9d25 | 1574 | PERL_UNUSED_ARG(mg); |
946ec16e | 1575 | if (LvTARG(sv)) { |
1576 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1577 | } |
1578 | return 0; | |
ac27b0f5 | 1579 | } |
946ec16e | 1580 | |
e336de0d | 1581 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1582 | STATIC int |
c05e0e2f | 1583 | S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1584 | { |
1585 | dSP; | |
463ee0b2 | 1586 | |
924508f0 GS |
1587 | PUSHMARK(SP); |
1588 | EXTEND(SP, n); | |
33c27489 | 1589 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1590 | if (n > 1) { |
93965878 | 1591 | if (mg->mg_ptr) { |
565764a8 | 1592 | if (mg->mg_len >= 0) |
79cb57f6 | 1593 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1594 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1595 | PUSHs((SV*)mg->mg_ptr); |
1596 | } | |
14befaf4 | 1597 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1598 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1599 | } |
1600 | } | |
1601 | if (n > 2) { | |
1602 | PUSHs(val); | |
88e89b8a | 1603 | } |
463ee0b2 LW |
1604 | PUTBACK; |
1605 | ||
864dbfa3 | 1606 | return call_method(meth, flags); |
946ec16e | 1607 | } |
1608 | ||
76e3520e | 1609 | STATIC int |
c05e0e2f | 1610 | S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth) |
a0d0e21e LW |
1611 | { |
1612 | dSP; | |
463ee0b2 | 1613 | |
a0d0e21e LW |
1614 | ENTER; |
1615 | SAVETMPS; | |
e788e7d3 | 1616 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1617 | |
33c27489 | 1618 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1619 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1620 | } |
463ee0b2 | 1621 | |
d3acc0f7 | 1622 | POPSTACK; |
a0d0e21e LW |
1623 | FREETMPS; |
1624 | LEAVE; | |
1625 | return 0; | |
1626 | } | |
463ee0b2 | 1627 | |
a0d0e21e | 1628 | int |
864dbfa3 | 1629 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1630 | { |
a0d0e21e LW |
1631 | if (mg->mg_ptr) |
1632 | mg->mg_flags |= MGf_GSKIP; | |
90912255 | 1633 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1634 | return 0; |
1635 | } | |
1636 | ||
1637 | int | |
864dbfa3 | 1638 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1639 | { |
1640 | dSP; | |
a60c0954 | 1641 | ENTER; |
e788e7d3 | 1642 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1643 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1644 | POPSTACK; |
a60c0954 | 1645 | LEAVE; |
463ee0b2 LW |
1646 | return 0; |
1647 | } | |
1648 | ||
1649 | int | |
864dbfa3 | 1650 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1651 | { |
a0d0e21e LW |
1652 | return magic_methpack(sv,mg,"DELETE"); |
1653 | } | |
463ee0b2 | 1654 | |
93965878 NIS |
1655 | |
1656 | U32 | |
864dbfa3 | 1657 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1658 | { |
e336de0d | 1659 | dSP; |
93965878 NIS |
1660 | U32 retval = 0; |
1661 | ||
1662 | ENTER; | |
1663 | SAVETMPS; | |
e788e7d3 | 1664 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1665 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1666 | sv = *PL_stack_sp--; |
a60c0954 | 1667 | retval = (U32) SvIV(sv)-1; |
93965878 | 1668 | } |
d3acc0f7 | 1669 | POPSTACK; |
93965878 NIS |
1670 | FREETMPS; |
1671 | LEAVE; | |
1672 | return retval; | |
1673 | } | |
1674 | ||
cea2e8a9 GS |
1675 | int |
1676 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1677 | { |
1678 | dSP; | |
463ee0b2 | 1679 | |
e336de0d | 1680 | ENTER; |
e788e7d3 | 1681 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1682 | PUSHMARK(SP); |
33c27489 | 1683 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1684 | PUTBACK; |
864dbfa3 | 1685 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1686 | POPSTACK; |
a60c0954 | 1687 | LEAVE; |
59679316 | 1688 | |
463ee0b2 LW |
1689 | return 0; |
1690 | } | |
1691 | ||
1692 | int | |
864dbfa3 | 1693 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1694 | { |
463ee0b2 | 1695 | dSP; |
7120cae1 | 1696 | const char * const meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1697 | |
1698 | ENTER; | |
a0d0e21e | 1699 | SAVETMPS; |
e788e7d3 | 1700 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1701 | PUSHMARK(SP); |
1702 | EXTEND(SP, 2); | |
33c27489 | 1703 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1704 | if (SvOK(key)) |
1705 | PUSHs(key); | |
1706 | PUTBACK; | |
1707 | ||
864dbfa3 | 1708 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1709 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1710 | |
d3acc0f7 | 1711 | POPSTACK; |
a0d0e21e LW |
1712 | FREETMPS; |
1713 | LEAVE; | |
79072805 LW |
1714 | return 0; |
1715 | } | |
1716 | ||
1717 | int | |
864dbfa3 | 1718 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1719 | { |
1720 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1721 | } |
a0d0e21e | 1722 | |
59679316 TP |
1723 | SV * |
1724 | Perl_magic_scalarpack(pTHX_ HV *hv, MAGIC *mg) | |
1725 | { | |
1726 | dSP; | |
2213ec13 | 1727 | SV *retval; |
4f1e9d25 AL |
1728 | SV * const tied = SvTIED_obj((SV*)hv, mg); |
1729 | HV * const pkg = SvSTASH((SV*)SvRV(tied)); | |
59679316 TP |
1730 | |
1731 | if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) { | |
1732 | SV *key; | |
26ab6a78 | 1733 | if (HvEITER_get(hv)) |
59679316 TP |
1734 | /* we are in an iteration so the hash cannot be empty */ |
1735 | return &PL_sv_yes; | |
1736 | /* no xhv_eiter so now use FIRSTKEY */ | |
1737 | key = sv_newmortal(); | |
1738 | magic_nextpack((SV*)hv, mg, key); | |
26ab6a78 | 1739 | HvEITER_set(hv, NULL); /* need to reset iterator */ |
59679316 TP |
1740 | return SvOK(key) ? &PL_sv_yes : &PL_sv_no; |
1741 | } | |
1742 | ||
1743 | /* there is a SCALAR method that we can call */ | |
1744 | ENTER; | |
1745 | PUSHSTACKi(PERLSI_MAGIC); | |
1746 | PUSHMARK(SP); | |
1747 | EXTEND(SP, 1); | |
1748 | PUSHs(tied); | |
1749 | PUTBACK; | |
1750 | ||
1751 | if (call_method("SCALAR", G_SCALAR)) | |
1752 | retval = *PL_stack_sp--; | |
2213ec13 NC |
1753 | else |
1754 | retval = &PL_sv_undef; | |
59679316 TP |
1755 | POPSTACK; |
1756 | LEAVE; | |
1757 | return retval; | |
1758 | } | |
1759 | ||
a0d0e21e | 1760 | int |
864dbfa3 | 1761 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1762 | { |
4f1e9d25 AL |
1763 | GV * const gv = PL_DBline; |
1764 | const I32 i = SvTRUE(sv); | |
1765 | SV ** const svp = av_fetch(GvAV(gv), | |
db1c9db1 | 1766 | atoi(MgPV_nolen_const(mg)), FALSE); |
4f1e9d25 AL |
1767 | if (svp && SvIOKp(*svp)) { |
1768 | OP * const o = INT2PTR(OP*,SvIVX(*svp)); | |
1769 | if (o) { | |
1770 | /* set or clear breakpoint in the relevant control op */ | |
1771 | if (i) | |
1772 | o->op_flags |= OPf_SPECIAL; | |
1773 | else | |
1774 | o->op_flags &= ~OPf_SPECIAL; | |
1775 | } | |
aeb5de76 | 1776 | } |
79072805 LW |
1777 | return 0; |
1778 | } | |
1779 | ||
1780 | int | |
864dbfa3 | 1781 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1782 | { |
1c005abe NC |
1783 | AV *obj = (AV*)mg->mg_obj; |
1784 | if (obj) { | |
2cb86c03 | 1785 | sv_setiv(sv, AvFILL(obj) + CopARYBASE_get(PL_curcop)); |
1c005abe NC |
1786 | } else { |
1787 | SvOK_off(sv); | |
1788 | } | |
79072805 LW |
1789 | return 0; |
1790 | } | |
1791 | ||
1792 | int | |
864dbfa3 | 1793 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1794 | { |
1c005abe NC |
1795 | AV *obj = (AV*)mg->mg_obj; |
1796 | if (obj) { | |
2cb86c03 | 1797 | av_fill(obj, SvIV(sv) - CopARYBASE_get(PL_curcop)); |
1c005abe NC |
1798 | } else { |
1799 | if (ckWARN(WARN_MISC)) | |
1800 | Perl_warner(aTHX_ packWARN(WARN_MISC), | |
1801 | "Attempt to set length of freed array"); | |
1802 | } | |
a0d0e21e LW |
1803 | return 0; |
1804 | } | |
1805 | ||
1806 | int | |
864dbfa3 | 1807 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1808 | { |
4f1e9d25 | 1809 | SV* const lsv = LvTARG(sv); |
8c6f7913 | 1810 | PERL_UNUSED_ARG(mg); |
ac27b0f5 | 1811 | |
a0d0e21e | 1812 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
8c6f7913 AL |
1813 | MAGIC * const found = mg_find(lsv, PERL_MAGIC_regex_global); |
1814 | if (found && found->mg_len >= 0) { | |
1815 | I32 i = found->mg_len; | |
7e2040f0 | 1816 | if (DO_UTF8(lsv)) |
a0ed51b3 | 1817 | sv_pos_b2u(lsv, &i); |
2cb86c03 | 1818 | sv_setiv(sv, i + CopARYBASE_get(PL_curcop)); |
a0d0e21e LW |
1819 | return 0; |
1820 | } | |
1821 | } | |
7460c263 | 1822 | SvOK_off(sv); |
a0d0e21e LW |
1823 | return 0; |
1824 | } | |
1825 | ||
1826 | int | |
864dbfa3 | 1827 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1828 | { |
4f1e9d25 | 1829 | SV* const lsv = LvTARG(sv); |
a0d0e21e LW |
1830 | SSize_t pos; |
1831 | STRLEN len; | |
c00206c8 | 1832 | STRLEN ulen = 0; |
8c6f7913 | 1833 | MAGIC *found; |
a0d0e21e | 1834 | |
8c6f7913 | 1835 | PERL_UNUSED_ARG(mg); |
ac27b0f5 | 1836 | |
a0d0e21e | 1837 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
8c6f7913 AL |
1838 | found = mg_find(lsv, PERL_MAGIC_regex_global); |
1839 | else | |
1840 | found = NULL; | |
1841 | if (!found) { | |
a0d0e21e LW |
1842 | if (!SvOK(sv)) |
1843 | return 0; | |
27bedd28 AL |
1844 | #ifdef PERL_OLD_COPY_ON_WRITE |
1845 | if (SvIsCOW(lsv)) | |
1846 | sv_force_normal_flags(lsv, 0); | |
1847 | #endif | |
8c6f7913 | 1848 | found = sv_magicext(lsv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, |
27bedd28 | 1849 | NULL, 0); |
a0d0e21e LW |
1850 | } |
1851 | else if (!SvOK(sv)) { | |
8c6f7913 | 1852 | found->mg_len = -1; |
a0d0e21e LW |
1853 | return 0; |
1854 | } | |
1855 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1856 | ||
2cb86c03 | 1857 | pos = SvIV(sv) - CopARYBASE_get(PL_curcop); |
a0ed51b3 | 1858 | |
7e2040f0 | 1859 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1860 | ulen = sv_len_utf8(lsv); |
1861 | if (ulen) | |
1862 | len = ulen; | |
a0ed51b3 LW |
1863 | } |
1864 | ||
a0d0e21e LW |
1865 | if (pos < 0) { |
1866 | pos += len; | |
1867 | if (pos < 0) | |
1868 | pos = 0; | |
1869 | } | |
eb160463 | 1870 | else if (pos > (SSize_t)len) |
a0d0e21e | 1871 | pos = len; |
a0ed51b3 LW |
1872 | |
1873 | if (ulen) { | |
1874 | I32 p = pos; | |
1875 | sv_pos_u2b(lsv, &p, 0); | |
1876 | pos = p; | |
1877 | } | |
727405f8 | 1878 | |
8c6f7913 AL |
1879 | found->mg_len = pos; |
1880 | found->mg_flags &= ~MGf_MINMATCH; | |
a0d0e21e | 1881 | |
79072805 LW |
1882 | return 0; |
1883 | } | |
1884 | ||
1885 | int | |
864dbfa3 | 1886 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1887 | { |
e776e865 | 1888 | const U32 wasfake = SvFLAGS(sv) & SVf_FAKE; |
4f1e9d25 | 1889 | PERL_UNUSED_ARG(mg); |
e776e865 NC |
1890 | |
1891 | /* FAKE globs can get coerced, so need to turn this off temporarily if it | |
1892 | is on. */ | |
1893 | SvFAKE_off(sv); | |
1894 | gv_efullname3(sv,((GV*)sv), "*"); | |
1895 | SvFLAGS(sv) |= wasfake; | |
1896 | ||
79072805 LW |
1897 | return 0; |
1898 | } | |
1899 | ||
1900 | int | |
864dbfa3 | 1901 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1902 | { |
79072805 | 1903 | GV* gv; |
4f1e9d25 | 1904 | PERL_UNUSED_ARG(mg); |
79072805 LW |
1905 | |
1906 | if (!SvOK(sv)) | |
1907 | return 0; | |
057b822e | 1908 | gv = gv_fetchsv(sv, GV_ADD, SVt_PVGV); |
79072805 LW |
1909 | if (sv == (SV*)gv) |
1910 | return 0; | |
1911 | if (GvGP(sv)) | |
88e89b8a | 1912 | gp_free((GV*)sv); |
79072805 | 1913 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1914 | return 0; |
1915 | } | |
1916 | ||
1917 | int | |
864dbfa3 | 1918 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1919 | { |
1920 | STRLEN len; | |
7120cae1 | 1921 | SV * const lsv = LvTARG(sv); |
23c2bb70 | 1922 | const char * const tmps = SvPV_const(lsv,len); |
6ff81951 GS |
1923 | I32 offs = LvTARGOFF(sv); |
1924 | I32 rem = LvTARGLEN(sv); | |
4f1e9d25 | 1925 | PERL_UNUSED_ARG(mg); |
6ff81951 | 1926 | |
9aa983d2 JH |
1927 | if (SvUTF8(lsv)) |
1928 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1929 | if (offs > (I32)len) |
6ff81951 | 1930 | offs = len; |
eb160463 | 1931 | if (rem + offs > (I32)len) |
6ff81951 GS |
1932 | rem = len - offs; |
1933 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1934 | if (SvUTF8(lsv)) |
2ef4b674 | 1935 | SvUTF8_on(sv); |
6ff81951 GS |
1936 | return 0; |
1937 | } | |
1938 | ||
1939 | int | |
864dbfa3 | 1940 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1941 | { |
9aa983d2 | 1942 | STRLEN len; |
2213ec13 | 1943 | const char * const tmps = SvPV_const(sv, len); |
0473add9 | 1944 | SV * const lsv = LvTARG(sv); |
9aa983d2 JH |
1945 | I32 lvoff = LvTARGOFF(sv); |
1946 | I32 lvlen = LvTARGLEN(sv); | |
4f1e9d25 | 1947 | PERL_UNUSED_ARG(mg); |
075a4a2b | 1948 | |
1aa99e6b | 1949 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1950 | sv_utf8_upgrade(lsv); |
1951 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
f8b14789 | 1952 | sv_insert(lsv, lvoff, lvlen, (char *)tmps, len); |
9aa983d2 JH |
1953 | SvUTF8_on(lsv); |
1954 | } | |
9bf12eaf | 1955 | else if (lsv && SvUTF8(lsv)) { |
2213ec13 | 1956 | const char *utf8; |
9aa983d2 | 1957 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
2213ec13 NC |
1958 | utf8 = (char*)bytes_to_utf8((U8*)tmps, &len); |
1959 | sv_insert(lsv, lvoff, lvlen, (char *)utf8, len); | |
1960 | Safefree(utf8); | |
1aa99e6b IH |
1961 | } |
1962 | else | |
f8b14789 | 1963 | sv_insert(lsv, lvoff, lvlen, (char *)tmps, len); |
1aa99e6b | 1964 | |
79072805 LW |
1965 | return 0; |
1966 | } | |
1967 | ||
1968 | int | |
864dbfa3 | 1969 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1970 | { |
4f1e9d25 | 1971 | PERL_UNUSED_ARG(sv); |
74435569 | 1972 | TAINT_IF((PL_localizing != 1) && (mg->mg_len & 1)); |
463ee0b2 LW |
1973 | return 0; |
1974 | } | |
1975 | ||
1976 | int | |
864dbfa3 | 1977 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1978 | { |
4f1e9d25 | 1979 | PERL_UNUSED_ARG(sv); |
74435569 NC |
1980 | /* update taint status unless we're restoring at scope exit */ |
1981 | if (PL_localizing != 2) { | |
1982 | if (PL_tainted) | |
1983 | mg->mg_len |= 1; | |
748a9306 | 1984 | else |
74435569 | 1985 | mg->mg_len &= ~1; |
a0d0e21e | 1986 | } |
463ee0b2 LW |
1987 | return 0; |
1988 | } | |
1989 | ||
1990 | int | |
864dbfa3 | 1991 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1992 | { |
7120cae1 | 1993 | SV * const lsv = LvTARG(sv); |
4f1e9d25 | 1994 | PERL_UNUSED_ARG(mg); |
6ff81951 | 1995 | |
8916b559 NC |
1996 | if (lsv) |
1997 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); | |
1998 | else | |
7460c263 | 1999 | SvOK_off(sv); |
6ff81951 | 2000 | |
6ff81951 GS |
2001 | return 0; |
2002 | } | |
2003 | ||
2004 | int | |
864dbfa3 | 2005 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2006 | { |
4f1e9d25 | 2007 | PERL_UNUSED_ARG(mg); |
79072805 LW |
2008 | do_vecset(sv); /* XXX slurp this routine */ |
2009 | return 0; | |
2010 | } | |
2011 | ||
2012 | int | |
864dbfa3 | 2013 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 2014 | { |
0e2d6244 | 2015 | SV *targ = NULL; |
5f05dabc | 2016 | if (LvTARGLEN(sv)) { |
68dc0745 | 2017 | if (mg->mg_obj) { |
4f1e9d25 | 2018 | SV * const ahv = LvTARG(sv); |
74e13ce4 | 2019 | if (SvTYPE(ahv) == SVt_PVHV) { |
4f1e9d25 | 2020 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
74e13ce4 GS |
2021 | if (he) |
2022 | targ = HeVAL(he); | |
2023 | } | |
2024 | else { | |
2025 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
2026 | if (svp) | |
2027 | targ = *svp; | |
2028 | } | |
68dc0745 | 2029 | } |
2030 | else { | |
4f1e9d25 | 2031 | AV* const av = (AV*)LvTARG(sv); |
68dc0745 | 2032 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
2033 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
2034 | } | |
2190c7e7 | 2035 | if (targ && (targ != &PL_sv_undef)) { |
68dc0745 | 2036 | /* somebody else defined it for us */ |
2037 | SvREFCNT_dec(LvTARG(sv)); | |
be2d5e07 | 2038 | LvTARG(sv) = SvREFCNT_inc_simple_NN(targ); |
68dc0745 | 2039 | LvTARGLEN(sv) = 0; |
2040 | SvREFCNT_dec(mg->mg_obj); | |
0e2d6244 | 2041 | mg->mg_obj = NULL; |
68dc0745 | 2042 | mg->mg_flags &= ~MGf_REFCOUNTED; |
2043 | } | |
5f05dabc | 2044 | } |
71be2cbc | 2045 | else |
2046 | targ = LvTARG(sv); | |
3280af22 | 2047 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 2048 | return 0; |
2049 | } | |
2050 | ||
2051 | int | |
864dbfa3 | 2052 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 2053 | { |
4f1e9d25 | 2054 | PERL_UNUSED_ARG(mg); |
71be2cbc | 2055 | if (LvTARGLEN(sv)) |
68dc0745 | 2056 | vivify_defelem(sv); |
2057 | if (LvTARG(sv)) { | |
5f05dabc | 2058 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 2059 | SvSETMAGIC(LvTARG(sv)); |
2060 | } | |
5f05dabc | 2061 | return 0; |
2062 | } | |
2063 | ||
71be2cbc | 2064 | void |
864dbfa3 | 2065 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 2066 | { |
74e13ce4 | 2067 | MAGIC *mg; |
0e2d6244 | 2068 | SV *value = NULL; |
71be2cbc | 2069 | |
14befaf4 | 2070 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 2071 | return; |
68dc0745 | 2072 | if (mg->mg_obj) { |
4f1e9d25 | 2073 | SV * const ahv = LvTARG(sv); |
74e13ce4 | 2074 | if (SvTYPE(ahv) == SVt_PVHV) { |
4f1e9d25 | 2075 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
2076 | if (he) |
2077 | value = HeVAL(he); | |
2078 | } | |
2079 | else { | |
af7f9c15 | 2080 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
2081 | if (svp) |
2082 | value = *svp; | |
2083 | } | |
3280af22 | 2084 | if (!value || value == &PL_sv_undef) |
6b53674b | 2085 | Perl_croak(aTHX_ PL_no_helem_sv, mg->mg_obj); |
71be2cbc | 2086 | } |
68dc0745 | 2087 | else { |
4f1e9d25 | 2088 | AV* const av = (AV*)LvTARG(sv); |
5aabfad6 | 2089 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
0e2d6244 | 2090 | LvTARG(sv) = NULL; /* array can't be extended */ |
68dc0745 | 2091 | else { |
43b2f713 | 2092 | SV* const * const svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 | 2093 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 2094 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 2095 | } |
2096 | } | |
be2d5e07 | 2097 | SvREFCNT_inc_simple_void(value); |
68dc0745 | 2098 | SvREFCNT_dec(LvTARG(sv)); |
2099 | LvTARG(sv) = value; | |
71be2cbc | 2100 | LvTARGLEN(sv) = 0; |
68dc0745 | 2101 | SvREFCNT_dec(mg->mg_obj); |
0e2d6244 | 2102 | mg->mg_obj = NULL; |
68dc0745 | 2103 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc | 2104 | } |
2105 | ||
2106 | int | |
864dbfa3 | 2107 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 | 2108 | { |
546fbbb9 NC |
2109 | AV *const av = (AV*)mg->mg_obj; |
2110 | SV **svp = AvARRAY(av); | |
4f1e9d25 | 2111 | PERL_UNUSED_ARG(sv); |
0473add9 | 2112 | |
546fbbb9 NC |
2113 | /* Not sure why the av can get freed ahead of its sv, but somehow it does |
2114 | in ext/B/t/bytecode.t test 15 (involving print <DATA>) */ | |
2115 | if (svp && !SvIS_FREED(av)) { | |
2116 | SV *const *const last = svp + AvFILLp(av); | |
2117 | ||
2118 | while (svp <= last) { | |
2119 | if (*svp) { | |
2120 | SV *const referrer = *svp; | |
2121 | if (SvWEAKREF(referrer)) { | |
2122 | /* XXX Should we check that it hasn't changed? */ | |
2123 | SvRV_set(referrer, 0); | |
2124 | SvOK_off(referrer); | |
2125 | SvWEAKREF_off(referrer); | |
2126 | } else { | |
2127 | Perl_croak(aTHX_ | |
2128 | "panic: magic_killbackrefs (flags=%"UVxf")", | |
2129 | SvFLAGS(referrer)); | |
2130 | } | |
2131 | ||
2132 | *svp = Nullsv; | |
2133 | } | |
2134 | svp++; | |
810b8aa5 | 2135 | } |
810b8aa5 | 2136 | } |
219ef941 | 2137 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
2138 | return 0; |
2139 | } | |
2140 | ||
2141 | int | |
864dbfa3 | 2142 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 2143 | { |
1e7ed80e | 2144 | PERL_UNUSED_CONTEXT; |
565764a8 | 2145 | mg->mg_len = -1; |
c6496cc7 | 2146 | SvSCREAM_off(sv); |
93a17b20 LW |
2147 | return 0; |
2148 | } | |
2149 | ||
2150 | int | |
864dbfa3 | 2151 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2152 | { |
4f1e9d25 | 2153 | PERL_UNUSED_ARG(mg); |
14befaf4 | 2154 | sv_unmagic(sv, PERL_MAGIC_bm); |
b822ac97 | 2155 | SvTAIL_off(sv); |
79072805 LW |
2156 | SvVALID_off(sv); |
2157 | return 0; | |
2158 | } | |
2159 | ||
2160 | int | |
864dbfa3 | 2161 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 2162 | { |
4f1e9d25 | 2163 | PERL_UNUSED_ARG(mg); |
14befaf4 | 2164 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 2165 | SvCOMPILED_off(sv); |
2166 | return 0; | |
2167 | } | |
2168 | ||
2169 | int | |
864dbfa3 | 2170 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2171 | { |
7120cae1 | 2172 | const struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
2173 | |
2174 | if (uf && uf->uf_set) | |
24f81a43 | 2175 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
2176 | return 0; |
2177 | } | |
2178 | ||
c277df42 | 2179 | int |
5835a535 JH |
2180 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
2181 | { | |
4f1e9d25 | 2182 | PERL_UNUSED_ARG(mg); |
5835a535 JH |
2183 | sv_unmagic(sv, PERL_MAGIC_qr); |
2184 | return 0; | |
2185 | } | |
2186 | ||
2187 | int | |
864dbfa3 | 2188 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 | 2189 | { |
4f1e9d25 AL |
2190 | regexp * const re = (regexp *)mg->mg_obj; |
2191 | PERL_UNUSED_ARG(sv); | |
2192 | ||
c277df42 IZ |
2193 | ReREFCNT_dec(re); |
2194 | return 0; | |
2195 | } | |
2196 | ||
7a4c00b4 | 2197 | #ifdef USE_LOCALE_COLLATE |
79072805 | 2198 | int |
864dbfa3 | 2199 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 2200 | { |
2201 | /* | |
838b5b74 | 2202 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 2203 | * and vanished with a faint plop. |
2204 | */ | |
1e7ed80e | 2205 | PERL_UNUSED_CONTEXT; |
4f1e9d25 | 2206 | PERL_UNUSED_ARG(sv); |
7a4c00b4 | 2207 | if (mg->mg_ptr) { |
2208 | Safefree(mg->mg_ptr); | |
2209 | mg->mg_ptr = NULL; | |
565764a8 | 2210 | mg->mg_len = -1; |
7a4c00b4 | 2211 | } |
bbce6d69 | 2212 | return 0; |
2213 | } | |
7a4c00b4 | 2214 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 2215 | |
323eb6b5 JH |
2216 | /* Just clear the UTF-8 cache data. */ |
2217 | int | |
2218 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
2219 | { | |
1e7ed80e | 2220 | PERL_UNUSED_CONTEXT; |
4f1e9d25 | 2221 | PERL_UNUSED_ARG(sv); |
8c6f7913 AL |
2222 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
2223 | mg->mg_ptr = NULL; | |
2224 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
2225 | return 0; | |
323eb6b5 JH |
2226 | } |
2227 | ||
bbce6d69 | 2228 | int |
864dbfa3 | 2229 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2230 | { |
c05e0e2f | 2231 | register const char *s; |
79072805 | 2232 | I32 i; |
8990e307 | 2233 | STRLEN len; |
79072805 | 2234 | switch (*mg->mg_ptr) { |
748a9306 | 2235 | case '\001': /* ^A */ |
3280af22 | 2236 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 2237 | break; |
49460fe6 | 2238 | case '\003': /* ^C */ |
161d0ac1 | 2239 | PL_minus_c = (bool)SvIV(sv); |
49460fe6 NIS |
2240 | break; |
2241 | ||
79072805 | 2242 | case '\004': /* ^D */ |
1aa6899f | 2243 | #ifdef DEBUGGING |
23c2bb70 | 2244 | s = SvPV_nolen_const(sv); |
d6c6363e | 2245 | PL_debug = get_debug_opts_flags((char **)&s, 0) | DEBUG_TOP_FLAG; |
79072805 | 2246 | DEBUG_x(dump_all()); |
1aa6899f | 2247 | #else |
161d0ac1 | 2248 | PL_debug = (SvIV(sv)) | DEBUG_TOP_FLAG; |
1aa6899f | 2249 | #endif |
79072805 | 2250 | break; |
28f23441 | 2251 | case '\005': /* ^E */ |
5b7ea690 | 2252 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2253 | #ifdef MACOS_TRADITIONAL |
161d0ac1 | 2254 | gMacPerl_OSErr = SvIV(sv); |
28f23441 | 2255 | #else |
cd39f2b6 | 2256 | # ifdef VMS |
161d0ac1 | 2257 | set_vaxc_errno(SvIV(sv)); |
048c1ddf | 2258 | # else |
cd39f2b6 | 2259 | # ifdef WIN32 |
5b7ea690 | 2260 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2261 | # else |
9fed8b87 | 2262 | # ifdef OS2 |
161d0ac1 | 2263 | os2_setsyserrno(SvIV(sv)); |
9fed8b87 | 2264 | # else |
5b7ea690 | 2265 | /* will anyone ever use this? */ |
161d0ac1 | 2266 | SETERRNO(SvIV(sv), 4); |
cd39f2b6 | 2267 | # endif |
048c1ddf IZ |
2268 | # endif |
2269 | # endif | |
22fae026 | 2270 | #endif |
5b7ea690 JH |
2271 | } |
2272 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2273 | if (PL_encoding) | |
2274 | SvREFCNT_dec(PL_encoding); | |
2275 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2276 | PL_encoding = newSVsv(sv); | |
2277 | } | |
2278 | else { | |
0e2d6244 | 2279 | PL_encoding = NULL; |
5b7ea690 JH |
2280 | } |
2281 | } | |
2282 | break; | |
79072805 | 2283 | case '\006': /* ^F */ |
161d0ac1 | 2284 | PL_maxsysfd = SvIV(sv); |
79072805 | 2285 | break; |
a0d0e21e | 2286 | case '\010': /* ^H */ |
161d0ac1 | 2287 | PL_hints = SvIV(sv); |
a0d0e21e | 2288 | break; |
9d116dd7 | 2289 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
4c58c75a | 2290 | Safefree(PL_inplace); |
0e2d6244 | 2291 | PL_inplace = SvOK(sv) ? savesvpv(sv) : NULL; |
79072805 | 2292 | break; |
28f23441 | 2293 | case '\017': /* ^O */ |
ac27b0f5 | 2294 | if (*(mg->mg_ptr+1) == '\0') { |
4c58c75a | 2295 | Safefree(PL_osname); |
0e2d6244 | 2296 | PL_osname = NULL; |
908fffd2 NC |
2297 | if (SvOK(sv)) { |
2298 | TAINT_PROPER("assigning to $^O"); | |
04851bb3 | 2299 | PL_osname = savesvpv(sv); |
908fffd2 | 2300 | } |
ac27b0f5 NIS |
2301 | } |
2302 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2303 | if (!PL_compiling.cop_io) | |
2304 | PL_compiling.cop_io = newSVsv(sv); | |
2305 | else | |
2306 | sv_setsv(PL_compiling.cop_io,sv); | |
2307 | } | |
28f23441 | 2308 | break; |
79072805 | 2309 | case '\020': /* ^P */ |
161d0ac1 | 2310 | PL_perldb = SvIV(sv); |
9648d1c1 | 2311 | if (PL_perldb && !PL_DBsingle) |
1ee4443e | 2312 | init_debugger(); |
79072805 LW |
2313 | break; |
2314 | case '\024': /* ^T */ | |
88e89b8a | 2315 | #ifdef BIG_TIME |
6b88bc9c | 2316 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2317 | #else |
161d0ac1 | 2318 | PL_basetime = (Time_t)SvIV(sv); |
88e89b8a | 2319 | #endif |
79072805 | 2320 | break; |
2f583b3c NC |
2321 | case '\025': /* ^UTF8CACHE */ |
2322 | if (strEQ(mg->mg_ptr+1, "TF8CACHE")) { | |
2323 | PL_utf8cache = (signed char) sv_2iv(sv); | |
2324 | } | |
2325 | break; | |
6563884d | 2326 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2327 | if (*(mg->mg_ptr+1) == '\0') { |
2328 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
161d0ac1 | 2329 | i = SvIV(sv); |
ac27b0f5 | 2330 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2331 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2332 | } |
599cee73 | 2333 | } |
0a378802 | 2334 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2335 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2336 | if (!SvPOK(sv) && PL_localizing) { |
2337 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2338 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2339 | break; |
2340 | } | |
f4fc7782 | 2341 | { |
b5477537 | 2342 | STRLEN len, i; |
d3a7d8c7 | 2343 | int accumulate = 0 ; |
f4fc7782 | 2344 | int any_fatals = 0 ; |
23c2bb70 | 2345 | const char * const ptr = SvPV_const(sv, len) ; |
f4fc7782 JH |
2346 | for (i = 0 ; i < len ; ++i) { |
2347 | accumulate |= ptr[i] ; | |
2348 | any_fatals |= (ptr[i] & 0xAA) ; | |
2349 | } | |
d3a7d8c7 GS |
2350 | if (!accumulate) |
2351 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2352 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2353 | PL_compiling.cop_warnings = pWARN_ALL; | |
2354 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2355 | } |
d3a7d8c7 GS |
2356 | else { |
2357 | if (specialWARN(PL_compiling.cop_warnings)) | |
2358 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2359 | else | |
2360 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2361 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2362 | PL_dowarn |= G_WARN_ONCE ; | |
2363 | } | |
f4fc7782 | 2364 | |
d3a7d8c7 | 2365 | } |
4438c4b7 | 2366 | } |
971a9dd3 | 2367 | } |
79072805 LW |
2368 | break; |
2369 | case '.': | |
3280af22 NIS |
2370 | if (PL_localizing) { |
2371 | if (PL_localizing == 1) | |
7766f137 | 2372 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2373 | } |
3280af22 | 2374 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2375 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2376 | break; |
2377 | case '^': | |
3280af22 | 2378 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
c05e0e2f | 2379 | s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
057b822e | 2380 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO); |
79072805 LW |
2381 | break; |
2382 | case '~': | |
3280af22 | 2383 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
c05e0e2f | 2384 | s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
057b822e | 2385 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO); |
79072805 LW |
2386 | break; |
2387 | case '=': | |
161d0ac1 | 2388 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIV(sv)); |
79072805 LW |
2389 | break; |
2390 | case '-': | |
161d0ac1 | 2391 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIV(sv)); |
3280af22 NIS |
2392 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2393 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2394 | break; |
2395 | case '%': | |
161d0ac1 | 2396 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIV(sv)); |
79072805 LW |
2397 | break; |
2398 | case '|': | |
4b65379b | 2399 | { |
4f1e9d25 | 2400 | IO * const io = GvIOp(PL_defoutgv); |
720f287d AB |
2401 | if(!io) |
2402 | break; | |
161d0ac1 | 2403 | if ((SvIV(sv)) == 0) |
4b65379b CS |
2404 | IoFLAGS(io) &= ~IOf_FLUSH; |
2405 | else { | |
2406 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2407 | PerlIO *ofp = IoOFP(io); | |
2408 | if (ofp) | |
2409 | (void)PerlIO_flush(ofp); | |
2410 | IoFLAGS(io) |= IOf_FLUSH; | |
2411 | } | |
2412 | } | |
79072805 LW |
2413 | } |
2414 | break; | |
2415 | case '*': | |
463ee0b2 | 2416 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 2417 | PL_multiline = (i != 0); |
79072805 LW |
2418 | break; |
2419 | case '/': | |
3280af22 | 2420 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2421 | PL_rs = newSVsv(sv); |
79072805 LW |
2422 | break; |
2423 | case '\\': | |
7889fe52 NIS |
2424 | if (PL_ors_sv) |
2425 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2426 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2427 | PL_ors_sv = newSVsv(sv); |
009c130f | 2428 | } |
e3c19b7b | 2429 | else { |
0e2d6244 | 2430 | PL_ors_sv = NULL; |
e3c19b7b | 2431 | } |
79072805 LW |
2432 | break; |
2433 | case ',': | |
7889fe52 NIS |
2434 | if (PL_ofs_sv) |
2435 | SvREFCNT_dec(PL_ofs_sv); | |
2436 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2437 | PL_ofs_sv = newSVsv(sv); | |
2438 | } | |
2439 | else { | |
0e2d6244 | 2440 | PL_ofs_sv = NULL; |
7889fe52 | 2441 | } |
79072805 LW |
2442 | break; |
2443 | case '#': | |
3280af22 NIS |
2444 | if (PL_ofmt) |
2445 | Safefree(PL_ofmt); | |
04851bb3 | 2446 | PL_ofmt = savesvpv(sv); |
79072805 LW |
2447 | break; |
2448 | case '[': | |
2cb86c03 | 2449 | CopARYBASE_set(&PL_compiling, SvIV(sv)); |
79072805 LW |
2450 | break; |
2451 | case '?': | |
ff0cee69 | 2452 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2453 | if (PL_localizing == 2) { |
2454 | PL_statusvalue = LvTARGOFF(sv); | |
2455 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2456 | } |
2457 | else | |
2458 | #endif | |
2459 | #ifdef VMSISH_STATUS | |
2460 | if (VMSISH_STATUS) | |
b14528dd | 2461 | STATUS_NATIVE_CHILD_SET((U32)SvIV(sv)); |
ff0cee69 | 2462 | else |
2463 | #endif | |
161d0ac1 | 2464 | STATUS_UNIX_EXIT_SET(SvIV(sv)); |
79072805 LW |
2465 | break; |
2466 | case '!': | |
5b7ea690 JH |
2467 | { |
2468 | #ifdef VMS | |
2469 | # define PERL_VMS_BANG vaxc$errno | |
2470 | #else | |
2471 | # define PERL_VMS_BANG 0 | |
2472 | #endif | |
91487cfc | 2473 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
5b7ea690 JH |
2474 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2475 | } | |
79072805 LW |
2476 | break; |
2477 | case '<': | |
161d0ac1 | 2478 | PL_uid = SvIV(sv); |
3280af22 NIS |
2479 | if (PL_delaymagic) { |
2480 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2481 | break; /* don't do magic till later */ |
2482 | } | |
2483 | #ifdef HAS_SETRUID | |
b28d0864 | 2484 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2485 | #else |
2486 | #ifdef HAS_SETREUID | |
3280af22 | 2487 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2488 | #else |
85e6fe83 | 2489 | #ifdef HAS_SETRESUID |
b28d0864 | 2490 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2491 | #else |
275984d7 NC |
2492 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2493 | #ifdef PERL_DARWIN | |
2494 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2495 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2496 | (void)PerlProc_setuid(0); | |
2497 | #endif | |
b28d0864 | 2498 | (void)PerlProc_setuid(PL_uid); |
275984d7 | 2499 | } else { |
d8eceb89 | 2500 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2501 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2502 | } |
79072805 LW |
2503 | #endif |
2504 | #endif | |
85e6fe83 | 2505 | #endif |
d8eceb89 | 2506 | PL_uid = PerlProc_getuid(); |
3280af22 | 2507 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2508 | break; |
2509 | case '>': | |
161d0ac1 | 2510 | PL_euid = SvIV(sv); |
3280af22 NIS |
2511 | if (PL_delaymagic) { |
2512 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2513 | break; /* don't do magic till later */ |
2514 | } | |
2515 | #ifdef HAS_SETEUID | |
3280af22 | 2516 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2517 | #else |
2518 | #ifdef HAS_SETREUID | |
b28d0864 | 2519 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2520 | #else |
2521 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2522 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2523 | #else |
b28d0864 NIS |
2524 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2525 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2526 | else { |
e8ee3774 | 2527 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2528 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2529 | } |
79072805 LW |
2530 | #endif |
2531 | #endif | |
85e6fe83 | 2532 | #endif |
d8eceb89 | 2533 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2534 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2535 | break; |
2536 | case '(': | |
161d0ac1 | 2537 | PL_gid = SvIV(sv); |
3280af22 NIS |
2538 | if (PL_delaymagic) { |
2539 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2540 | break; /* don't do magic till later */ |
2541 | } | |
2542 | #ifdef HAS_SETRGID | |
b28d0864 | 2543 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2544 | #else |
2545 | #ifdef HAS_SETREGID | |
3280af22 | 2546 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2547 | #else |
2548 | #ifdef HAS_SETRESGID | |
b28d0864 | 2549 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2550 | #else |
b28d0864 NIS |
2551 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2552 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2553 | else { |
d8eceb89 | 2554 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2555 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2556 | } |
79072805 LW |
2557 | #endif |
2558 | #endif | |
85e6fe83 | 2559 | #endif |
d8eceb89 | 2560 | PL_gid = PerlProc_getgid(); |
3280af22 | 2561 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2562 | break; |
2563 | case ')': | |
5cd24f17 | 2564 | #ifdef HAS_SETGROUPS |
2565 | { | |
23c2bb70 | 2566 | const char *p = SvPV_const(sv, len); |
4b023f8e JC |
2567 | Groups_t *gary = NULL; |
2568 | ||
2569 | while (isSPACE(*p)) | |
2570 | ++p; | |
2571 | PL_egid = Atol(p); | |
2572 | for (i = 0; i < NGROUPS; ++i) { | |
2573 | while (*p && !isSPACE(*p)) | |
2574 | ++p; | |
2575 | while (isSPACE(*p)) | |
2576 | ++p; | |
2577 | if (!*p) | |
2578 | break; | |
2579 | if(!gary) | |
2580 | Newx(gary, i + 1, Groups_t); | |
2581 | else | |
2582 | Renew(gary, i + 1, Groups_t); | |
2583 | gary[i] = Atol(p); | |
2584 | } | |
2585 | if (i) | |
2586 | (void)setgroups(i, gary); | |
5336c895 | 2587 | Safefree(gary); |
5cd24f17 | 2588 | } |
2589 | #else /* HAS_SETGROUPS */ | |
161d0ac1 | 2590 | PL_egid = SvIV(sv); |
5cd24f17 | 2591 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2592 | if (PL_delaymagic) { |
2593 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2594 | break; /* don't do magic till later */ |
2595 | } | |
2596 | #ifdef HAS_SETEGID | |
3280af22 | 2597 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2598 | #else |
2599 | #ifdef HAS_SETREGID | |
b28d0864 | 2600 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2601 | #else |
2602 | #ifdef HAS_SETRESGID | |
b28d0864 | 2603 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2604 | #else |
b28d0864 NIS |
2605 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2606 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2607 | else { |
d8eceb89 | 2608 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2609 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2610 | } |
79072805 LW |
2611 | #endif |
2612 | #endif | |
85e6fe83 | 2613 | #endif |
d8eceb89 | 2614 | PL_egid = PerlProc_getegid(); |
3280af22 | 2615 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2616 | break; |
2617 | case ':': | |
2d8e6c8d | 2618 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2619 | break; |
cd39f2b6 | 2620 | #ifndef MACOS_TRADITIONAL |
79072805 | 2621 | case '0': |
7223e9d8 | 2622 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2623 | #ifdef HAS_SETPROCTITLE |
2624 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2625 | * show a string from the process struct and provide | |
2626 | * the setproctitle() routine to manipulate that. */ | |
dc252d18 | 2627 | if (PL_origalen != 1) { |
23c2bb70 | 2628 | s = SvPV_const(sv, len); |
98b76f99 | 2629 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2630 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2631 | * but not the "(perl) suffix from the ps(1) |
2632 | * output, because that's what ps(1) shows if the | |
2633 | * argv[] is modified. */ | |
6f2ad931 | 2634 | setproctitle("-%s", s); |
9aad2c0e | 2635 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2636 | /* This doesn't really work if you assume that |
2637 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2638 | * because in ps(1) output the result will be like | |
2639 | * sprintf("perl: %s (perl)", s) | |
2640 | * I guess this is a security feature: | |
2641 | * one (a user process) cannot get rid of the original name. | |
2642 | * --jhi */ | |
2643 | setproctitle("%s", s); | |
2644 | # endif | |
2645 | } | |
cf33fdbc | 2646 | #elif defined(__hpux) && defined(PSTAT_SETCMD) |
dc252d18 | 2647 | if (PL_origalen != 1) { |
7223e9d8 | 2648 | union pstun un; |
23c2bb70 | 2649 | s = SvPV_const(sv, len); |
c501bbfe | 2650 | un.pst_command = (char *)s; |
7223e9d8 JH |
2651 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2652 | } | |
cf33fdbc | 2653 | #else |
dc252d18 NC |
2654 | if (PL_origalen > 1) { |
2655 | /* PL_origalen is set in perl_parse(). */ | |
2656 | s = SvPV_force(sv,len); | |
2657 | if (len >= (STRLEN)PL_origalen-1) { | |
2658 | /* Longer than original, will be truncated. We assume that | |
2659 | * PL_origalen bytes are available. */ | |
2660 | Copy(s, PL_origargv[0], PL_origalen-1, char); | |
2661 | } | |
2662 | else { | |
2663 | /* Shorter than original, will be padded. */ | |
cf33fdbc NC |
2664 | #ifdef PERL_DARWIN |
2665 | /* Special case for Mac OS X: see [perl #38868] */ | |
2666 | const int pad = 0; | |
2667 | #else | |
2668 | /* Is the space counterintuitive? Yes. | |
2669 | * (You were expecting \0?) | |
2670 | * Does it work? Seems to. (In Linux 2.4.20 at least.) | |
2671 | * --jhi */ | |
2672 | const int pad = ' '; | |
2673 | #endif | |
dc252d18 NC |
2674 | Copy(s, PL_origargv[0], len, char); |
2675 | PL_origargv[0][len] = 0; | |
2676 | memset(PL_origargv[0] + len + 1, | |
cf33fdbc | 2677 | pad, PL_origalen - len - 1); |
dc252d18 NC |
2678 | } |
2679 | PL_origargv[0][PL_origalen-1] = 0; | |
2680 | for (i = 1; i < PL_origargc; i++) | |
2681 | PL_origargv[i] = 0; | |
79072805 | 2682 | } |
cf33fdbc | 2683 | #endif |
7223e9d8 | 2684 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2685 | break; |
cd39f2b6 | 2686 | #endif |
4d1ff10f | 2687 | #ifdef USE_5005THREADS |
a863c7d1 | 2688 | case '@': |
38a03e6e | 2689 | sv_setsv(thr->errsv, sv); |
a863c7d1 | 2690 | break; |
4d1ff10f | 2691 | #endif /* USE_5005THREADS */ |
79072805 LW |
2692 | } |
2693 | return 0; | |
2694 | } | |
2695 | ||
4d1ff10f | 2696 | #ifdef USE_5005THREADS |
f93b4edd | 2697 | int |
864dbfa3 | 2698 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2699 | { |
b900a521 JH |
2700 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2701 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
a674cc95 | 2702 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd | 2703 | if (MgOWNER(mg)) |
cea2e8a9 | 2704 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2705 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2706 | COND_DESTROY(MgCONDP(mg)); | |
2707 | return 0; | |
2708 | } | |
4d1ff10f | 2709 | #endif /* USE_5005THREADS */ |
f93b4edd | 2710 | |
79072805 | 2711 | I32 |
864dbfa3 | 2712 | Perl_whichsig(pTHX_ char *sig) |
79072805 | 2713 | { |
fe20fd30 | 2714 | register const char * const *sigv; |
1e7ed80e | 2715 | PERL_UNUSED_CONTEXT; |
79072805 | 2716 | |
582e5fa1 | 2717 | for (sigv = PL_sig_name; *sigv; sigv++) |
79072805 | 2718 | if (strEQ(sig,*sigv)) |
22c35a8c | 2719 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2720 | #ifdef SIGCLD |
2721 | if (strEQ(sig,"CHLD")) | |
2722 | return SIGCLD; | |
2723 | #endif | |
2724 | #ifdef SIGCHLD | |
2725 | if (strEQ(sig,"CLD")) | |
2726 | return SIGCHLD; | |
2727 | #endif | |
0d22ce0f | 2728 | return -1; |
79072805 LW |
2729 | } |
2730 | ||
df3728a2 | 2731 | #if !defined(PERL_IMPLICIT_CONTEXT) |
fe20fd30 | 2732 | static SV* PL_sig_sv; |
df3728a2 | 2733 | #endif |
84902520 | 2734 | |
ecfc5424 | 2735 | Signal_t |
17afd9a0 NC |
2736 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
2737 | Perl_sighandler(int sig) | |
2738 | { | |
ead213de | 2739 | Perl_sighandler_va(sig); |
17afd9a0 NC |
2740 | } |
2741 | ||
2742 | Signal_t | |
2743 | Perl_sighandler_va(int sig, ...) | |
2744 | #else | |
cea2e8a9 | 2745 | Perl_sighandler(int sig) |
17afd9a0 | 2746 | #endif |
79072805 | 2747 | { |
1018e26f NIS |
2748 | #ifdef PERL_GET_SIG_CONTEXT |
2749 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2750 | #else |
cea2e8a9 | 2751 | dTHX; |
71d280e3 | 2752 | #endif |
79072805 | 2753 | dSP; |
0e2d6244 SS |
2754 | GV *gv = NULL; |
2755 | SV *sv = NULL; | |
4f1e9d25 | 2756 | SV * const tSv = PL_Sv; |
00d579c5 | 2757 | CV *cv = Nullcv; |
533c011a | 2758 | OP *myop = PL_op; |
84902520 | 2759 | U32 flags = 0; |
4f1e9d25 | 2760 | XPV * const tXpv = PL_Xpv; |
71d280e3 | 2761 | |
3280af22 | 2762 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2763 | flags |= 1; |
3280af22 | 2764 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2765 | flags |= 4; |
3280af22 | 2766 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2767 | flags |= 8; |
3280af22 | 2768 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2769 | flags |= 16; |
2770 | ||
727405f8 | 2771 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2772 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2773 | PL_sig_name[sig]); |
2774 | exit(sig); | |
2775 | } | |
ff0cee69 | 2776 | |
84902520 TB |
2777 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2778 | infinity, so we fix 4 (in fact 5): */ | |
2779 | if (flags & 1) { | |
3280af22 | 2780 | PL_savestack_ix += 5; /* Protect save in progress. */ |
4f1e9d25 | 2781 | SAVEDESTRUCTOR_X(S_unwind_handler_stack, (void*)&flags); |
84902520 | 2782 | } |
ac27b0f5 | 2783 | if (flags & 4) |
3280af22 | 2784 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2785 | if (flags & 8) { |
3280af22 NIS |
2786 | PL_retstack_ix++; |
2787 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2788 | } |
2789 | if (flags & 16) | |
3280af22 | 2790 | PL_scopestack_ix += 1; |
84902520 | 2791 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2792 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
4f1e9d25 AL |
2793 | || SvTYPE(cv) != SVt_PVCV) { |
2794 | HV *st; | |
057b822e | 2795 | cv = sv_2cv(PL_psig_ptr[sig], &st, &gv, GV_ADD); |
4f1e9d25 | 2796 | } |
84902520 | 2797 | |
a0d0e21e | 2798 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2799 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2800 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2801 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2802 | : ((cv && CvGV(cv)) |
2803 | ? GvENAME(CvGV(cv)) | |
2804 | : "__ANON__"))); | |
2805 | goto cleanup; | |
79072805 LW |
2806 | } |
2807 | ||
22c35a8c | 2808 | if(PL_psig_name[sig]) { |
be2d5e07 | 2809 | sv = SvREFCNT_inc_NN(PL_psig_name[sig]); |
84902520 | 2810 | flags |= 64; |
df3728a2 | 2811 | #if !defined(PERL_IMPLICIT_CONTEXT) |
fe20fd30 | 2812 | PL_sig_sv = sv; |
df3728a2 | 2813 | #endif |
84902520 | 2814 | } else { |
ff0cee69 | 2815 | sv = sv_newmortal(); |
22c35a8c | 2816 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2817 | } |
e336de0d | 2818 | |
e788e7d3 | 2819 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2820 | PUSHMARK(SP); |
79072805 | 2821 | PUSHs(sv); |
17afd9a0 NC |
2822 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
2823 | { | |
2824 | struct sigaction oact; | |
2825 | ||
2826 | if (sigaction(sig, 0, &oact) == 0 && oact.sa_flags & SA_SIGINFO) { | |
2827 | siginfo_t *sip; | |
2828 | va_list args; | |
2829 | ||
2830 | va_start(args, sig); | |
2831 | sip = (siginfo_t*)va_arg(args, siginfo_t*); | |
2832 | if (sip) { | |
2833 | HV *sih = newHV(); | |
2834 | SV *rv = newRV_noinc((SV*)sih); | |
2835 | /* The siginfo fields signo, code, errno, pid, uid, | |
2836 | * addr, status, and band are defined by POSIX/SUSv3. */ | |
2837 | hv_store(sih, "signo", 5, newSViv(sip->si_signo), 0); | |
2838 | hv_store(sih, "code", 4, newSViv(sip->si_code), 0); | |
2839 | #if 0 /* XXX TODO: Configure scan for the existence of these, but even that does not help if the SA_SIGINFO is not implemented according to the spec. */ | |
2840 | hv_store(sih, "errno", 5, newSViv(sip->si_errno), 0); | |
2841 | hv_store(sih, "status", 6, newSViv(sip->si_status), 0); | |
2842 | hv_store(sih, "uid", 3, newSViv(sip->si_uid), 0); | |
2843 | hv_store(sih, "pid", 3, newSViv(sip->si_pid), 0); | |
2844 | hv_store(sih, "addr", 4, newSVuv(PTR2UV(sip->si_addr)), 0); | |
2845 | hv_store(sih, "band", 4, newSViv(sip->si_band), 0); | |
2846 | #endif | |
2847 | EXTEND(SP, 2); | |
2848 | PUSHs((SV*)rv); | |
d2ae4405 | 2849 | PUSHs(newSVpv((char *)sip, sizeof(*sip))); |
17afd9a0 NC |
2850 | } |
2851 | ||
2852 | va_end(args); | |
2853 | } | |
2854 | } | |
2855 | #endif | |
79072805 | 2856 | PUTBACK; |
a0d0e21e | 2857 | |
1b266415 | 2858 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2859 | |
d3acc0f7 | 2860 | POPSTACK; |
1b266415 | 2861 | if (SvTRUE(ERRSV)) { |
1d615522 | 2862 | #ifndef PERL_MICRO |
983dbef6 | 2863 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2864 | /* Handler "died", for example to get out of a restart-able read(). |
2865 | * Before we re-do that on its behalf re-enable the signal which was | |
2866 | * blocked by the system when we entered. | |
2867 | */ | |
2868 | sigset_t set; | |
2869 | sigemptyset(&set); | |
2870 | sigaddset(&set,sig); | |
2871 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2872 | #else | |
2873 | /* Not clear if this will work */ | |
2874 | (void)rsignal(sig, SIG_IGN); | |
71b97453 | 2875 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2876 | #endif |
1d615522 | 2877 | #endif /* !PERL_MICRO */ |
0e2d6244 | 2878 | Perl_die(aTHX_ NULL); |
1b266415 | 2879 | } |
00d579c5 | 2880 | cleanup: |
84902520 | 2881 | if (flags & 1) |
3280af22 | 2882 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2883 | if (flags & 4) |
3280af22 | 2884 | PL_markstack_ptr--; |
ac27b0f5 | 2885 | if (flags & 8) |
3280af22 | 2886 | PL_retstack_ix--; |
84902520 | 2887 | if (flags & 16) |
3280af22 | 2888 | PL_scopestack_ix -= 1; |
84902520 TB |
2889 | if (flags & 64) |
2890 | SvREFCNT_dec(sv); | |
533c011a | 2891 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2892 | |
3280af22 NIS |
2893 | PL_Sv = tSv; /* Restore global temporaries. */ |
2894 | PL_Xpv = tXpv; | |
79072805 LW |
2895 | return; |
2896 | } | |
4e35701f NIS |
2897 | |
2898 | ||
51371543 | 2899 | static void |
4f1e9d25 | 2900 | S_restore_magic(pTHX_ const void *p) |
51371543 | 2901 | { |
4f1e9d25 AL |
2902 | MGS* const mgs = SSPTR(PTR2IV(p), MGS*); |
2903 | SV* const sv = mgs->mgs_sv; | |
51371543 GS |
2904 | |
2905 | if (!sv) | |
2906 | return; | |
2907 | ||
2908 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2909 | { | |
2910 | if (mgs->mgs_flags) | |
2911 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2912 | else | |
2913 | mg_magical(sv); | |
43e23f82 NC |
2914 | if (SvGMAGICAL(sv)) { |
2915 | /* downgrade public flags to private, | |
2916 | and discard any other private flags */ | |
2917 | ||
d2ae4405 JH |
2918 | const U32 pubflags = SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK); |
2919 | if (pubflags) { | |
2920 | SvFLAGS(sv) &= ~( pubflags | (SVp_IOK|SVp_NOK|SVp_POK) ); | |
2921 | SvFLAGS(sv) |= ( pubflags << PRIVSHIFT ); | |
43e23f82 NC |
2922 | } |
2923 | } | |
51371543 GS |
2924 | } |
2925 | ||
2926 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2927 | ||
2928 | /* If we're still on top of the stack, pop us off. (That condition | |
2929 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2930 | * if it's being called via leave_scope.) | |
2931 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2932 | * may leave alloc gunk on the savestack, and some code | |
2933 | * (e.g. sighandler) doesn't expect that... | |
2934 | */ | |
2935 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2936 | { | |
2937 | I32 popval = SSPOPINT; | |
c76ac1ee | 2938 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2939 | PL_savestack_ix -= 2; |
2940 | popval = SSPOPINT; | |
2941 | assert(popval == SAVEt_ALLOC); | |
2942 | popval = SSPOPINT; | |
2943 | PL_savestack_ix -= popval; | |
2944 | } | |
2945 | ||
2946 | } | |
2947 | ||
2948 | static void | |
4f1e9d25 | 2949 | S_unwind_handler_stack(pTHX_ const void *p) |
51371543 | 2950 | { |
c05e0e2f | 2951 | const U32 flags = *(const U32*)p; |
51371543 GS |
2952 | |
2953 | if (flags & 1) | |
2954 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
df3728a2 | 2955 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 | 2956 | if (flags & 64) |
fe20fd30 | 2957 | SvREFCNT_dec(PL_sig_sv); |
df3728a2 | 2958 | #endif |
51371543 | 2959 | } |
1018e26f | 2960 | |
d8294a4d NC |
2961 | /* |
2962 | * Local variables: | |
2963 | * c-indentation-style: bsd | |
2964 | * c-basic-offset: 4 | |
2965 | * indent-tabs-mode: t | |
2966 | * End: | |
2967 | * | |
2968 | * ex: set ts=8 sts=4 sw=4 noet: | |
2969 | */ |