Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
cbdf9ef8 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others |
79072805 LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
13 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
14 | */ |
15 | ||
ccfc67b7 JH |
16 | /* |
17 | =head1 Magical Functions | |
166f8a29 DM |
18 | |
19 | "Magic" is special data attached to SV structures in order to give them | |
20 | "magical" properties. When any Perl code tries to read from, or assign to, | |
21 | an SV marked as magical, it calls the 'get' or 'set' function associated | |
22 | with that SV's magic. A get is called prior to reading an SV, in order to | |
ddfa107c | 23 | give it a chance to update its internal value (get on $. writes the line |
166f8a29 DM |
24 | number of the last read filehandle into to the SV's IV slot), while |
25 | set is called after an SV has been written to, in order to allow it to make | |
ddfa107c | 26 | use of its changed value (set on $/ copies the SV's new value to the |
166f8a29 DM |
27 | PL_rs global variable). |
28 | ||
29 | Magic is implemented as a linked list of MAGIC structures attached to the | |
30 | SV. Each MAGIC struct holds the type of the magic, a pointer to an array | |
31 | of functions that implement the get(), set(), length() etc functions, | |
32 | plus space for some flags and pointers. For example, a tied variable has | |
33 | a MAGIC structure that contains a pointer to the object associated with the | |
34 | tie. | |
35 | ||
ccfc67b7 JH |
36 | */ |
37 | ||
79072805 | 38 | #include "EXTERN.h" |
864dbfa3 | 39 | #define PERL_IN_MG_C |
79072805 LW |
40 | #include "perl.h" |
41 | ||
5cd24f17 | 42 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
43 | # ifndef NGROUPS |
44 | # define NGROUPS 32 | |
45 | # endif | |
b7953727 JH |
46 | # ifdef I_GRP |
47 | # include <grp.h> | |
48 | # endif | |
188ea221 CS |
49 | #endif |
50 | ||
17aa7f3d JH |
51 | #ifdef __hpux |
52 | # include <sys/pstat.h> | |
53 | #endif | |
54 | ||
e69880a5 CB |
55 | Signal_t Perl_csighandler(int sig); |
56 | ||
9cffb111 OS |
57 | #ifdef __Lynx__ |
58 | /* Missing protos on LynxOS */ | |
59 | void setruid(uid_t id); | |
60 | void seteuid(uid_t id); | |
61 | void setrgid(uid_t id); | |
62 | void setegid(uid_t id); | |
63 | #endif | |
64 | ||
c07a80fd | 65 | /* |
66 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
67 | */ | |
68 | ||
69 | struct magic_state { | |
70 | SV* mgs_sv; | |
71 | U32 mgs_flags; | |
455ece5e | 72 | I32 mgs_ss_ix; |
c07a80fd | 73 | }; |
455ece5e | 74 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
75 | |
76 | STATIC void | |
8fb26106 | 77 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 78 | { |
455ece5e | 79 | MGS* mgs; |
c07a80fd | 80 | assert(SvMAGICAL(sv)); |
f8c7b90f | 81 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d NC |
82 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ |
83 | if (SvIsCOW(sv)) | |
84 | sv_force_normal(sv); | |
85 | #endif | |
c07a80fd | 86 | |
8772537c | 87 | SAVEDESTRUCTOR_X(S_restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
88 | |
89 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 90 | mgs->mgs_sv = sv; |
91 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 92 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 93 | |
94 | SvMAGICAL_off(sv); | |
95 | SvREADONLY_off(sv); | |
06759ea0 | 96 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 97 | } |
98 | ||
954c1994 GS |
99 | /* |
100 | =for apidoc mg_magical | |
101 | ||
102 | Turns on the magical status of an SV. See C<sv_magic>. | |
103 | ||
104 | =cut | |
105 | */ | |
106 | ||
8990e307 | 107 | void |
864dbfa3 | 108 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 | 109 | { |
e1ec3a88 | 110 | const MAGIC* mg; |
8990e307 | 111 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 112 | const MGVTBL* const vtbl = mg->mg_virtual; |
8990e307 | 113 | if (vtbl) { |
2b260de0 | 114 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
115 | SvGMAGICAL_on(sv); |
116 | if (vtbl->svt_set) | |
117 | SvSMAGICAL_on(sv); | |
2b260de0 | 118 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
119 | SvRMAGICAL_on(sv); |
120 | } | |
121 | } | |
122 | } | |
123 | ||
954c1994 GS |
124 | /* |
125 | =for apidoc mg_get | |
126 | ||
127 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
128 | ||
129 | =cut | |
130 | */ | |
131 | ||
79072805 | 132 | int |
864dbfa3 | 133 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 134 | { |
35a4481c | 135 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
fe2774ed | 136 | const bool was_temp = (bool)SvTEMP(sv); |
0723351e | 137 | int have_new = 0; |
ff76feab | 138 | MAGIC *newmg, *head, *cur, *mg; |
20135930 | 139 | /* guard against sv having being freed midway by holding a private |
6683b158 NC |
140 | reference. */ |
141 | ||
142 | /* sv_2mortal has this side effect of turning on the TEMP flag, which can | |
143 | cause the SV's buffer to get stolen (and maybe other stuff). | |
144 | So restore it. | |
145 | */ | |
146 | sv_2mortal(SvREFCNT_inc(sv)); | |
147 | if (!was_temp) { | |
148 | SvTEMP_off(sv); | |
149 | } | |
150 | ||
455ece5e | 151 | save_magic(mgs_ix, sv); |
463ee0b2 | 152 | |
ff76feab AMS |
153 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
154 | list of magic. svt_get() may delete the current entry, add new | |
155 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
156 | ||
157 | newmg = cur = head = mg = SvMAGIC(sv); | |
158 | while (mg) { | |
35a4481c | 159 | const MGVTBL * const vtbl = mg->mg_virtual; |
ff76feab | 160 | |
2b260de0 | 161 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 162 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 | 163 | |
58f82c5c DM |
164 | /* guard against magic having been deleted - eg FETCH calling |
165 | * untie */ | |
166 | if (!SvMAGIC(sv)) | |
167 | break; | |
b77f7d40 | 168 | |
ff76feab AMS |
169 | /* Don't restore the flags for this entry if it was deleted. */ |
170 | if (mg->mg_flags & MGf_GSKIP) | |
171 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 172 | } |
ff76feab AMS |
173 | |
174 | mg = mg->mg_moremagic; | |
175 | ||
0723351e | 176 | if (have_new) { |
ff76feab AMS |
177 | /* Have we finished with the new entries we saw? Start again |
178 | where we left off (unless there are more new entries). */ | |
179 | if (mg == head) { | |
0723351e | 180 | have_new = 0; |
ff76feab AMS |
181 | mg = cur; |
182 | head = newmg; | |
183 | } | |
184 | } | |
185 | ||
186 | /* Were any new entries added? */ | |
0723351e NC |
187 | if (!have_new && (newmg = SvMAGIC(sv)) != head) { |
188 | have_new = 1; | |
ff76feab AMS |
189 | cur = mg; |
190 | mg = newmg; | |
760ac839 | 191 | } |
79072805 | 192 | } |
463ee0b2 | 193 | |
8772537c | 194 | restore_magic(INT2PTR(void *, (IV)mgs_ix)); |
6683b158 NC |
195 | |
196 | if (SvREFCNT(sv) == 1) { | |
197 | /* We hold the last reference to this SV, which implies that the | |
198 | SV was deleted as a side effect of the routines we called. */ | |
0c34ef67 | 199 | SvOK_off(sv); |
6683b158 | 200 | } |
79072805 LW |
201 | return 0; |
202 | } | |
203 | ||
954c1994 GS |
204 | /* |
205 | =for apidoc mg_set | |
206 | ||
207 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
208 | ||
209 | =cut | |
210 | */ | |
211 | ||
79072805 | 212 | int |
864dbfa3 | 213 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 214 | { |
35a4481c | 215 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 216 | MAGIC* mg; |
463ee0b2 LW |
217 | MAGIC* nextmg; |
218 | ||
455ece5e | 219 | save_magic(mgs_ix, sv); |
463ee0b2 LW |
220 | |
221 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
e1ec3a88 | 222 | const MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 223 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
224 | if (mg->mg_flags & MGf_GSKIP) { |
225 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 226 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 227 | } |
2b260de0 | 228 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 229 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 230 | } |
463ee0b2 | 231 | |
8772537c | 232 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
233 | return 0; |
234 | } | |
235 | ||
954c1994 GS |
236 | /* |
237 | =for apidoc mg_length | |
238 | ||
239 | Report on the SV's length. See C<sv_magic>. | |
240 | ||
241 | =cut | |
242 | */ | |
243 | ||
79072805 | 244 | U32 |
864dbfa3 | 245 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
246 | { |
247 | MAGIC* mg; | |
463ee0b2 | 248 | STRLEN len; |
463ee0b2 | 249 | |
79072805 | 250 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 251 | const MGVTBL * const vtbl = mg->mg_virtual; |
2b260de0 | 252 | if (vtbl && vtbl->svt_len) { |
35a4481c | 253 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
455ece5e | 254 | save_magic(mgs_ix, sv); |
a0d0e21e | 255 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 256 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
8772537c | 257 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
258 | return len; |
259 | } | |
260 | } | |
261 | ||
35a4481c | 262 | if (DO_UTF8(sv)) { |
10516c54 | 263 | const U8 *s = (U8*)SvPV_const(sv, len); |
5636d518 DB |
264 | len = Perl_utf8_length(aTHX_ s, s + len); |
265 | } | |
266 | else | |
10516c54 | 267 | (void)SvPV_const(sv, len); |
463ee0b2 | 268 | return len; |
79072805 LW |
269 | } |
270 | ||
8fb26106 | 271 | I32 |
864dbfa3 | 272 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
273 | { |
274 | MAGIC* mg; | |
ac27b0f5 | 275 | |
93965878 | 276 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 277 | const MGVTBL* const vtbl = mg->mg_virtual; |
2b260de0 | 278 | if (vtbl && vtbl->svt_len) { |
35a4481c AL |
279 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
280 | I32 len; | |
455ece5e | 281 | save_magic(mgs_ix, sv); |
93965878 | 282 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 283 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
8772537c | 284 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
285 | return len; |
286 | } | |
287 | } | |
288 | ||
289 | switch(SvTYPE(sv)) { | |
290 | case SVt_PVAV: | |
35a4481c | 291 | return AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
93965878 NIS |
292 | case SVt_PVHV: |
293 | /* FIXME */ | |
294 | default: | |
cea2e8a9 | 295 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
296 | break; |
297 | } | |
298 | return 0; | |
299 | } | |
300 | ||
954c1994 GS |
301 | /* |
302 | =for apidoc mg_clear | |
303 | ||
304 | Clear something magical that the SV represents. See C<sv_magic>. | |
305 | ||
306 | =cut | |
307 | */ | |
308 | ||
79072805 | 309 | int |
864dbfa3 | 310 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 311 | { |
35a4481c | 312 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 313 | MAGIC* mg; |
463ee0b2 | 314 | |
455ece5e | 315 | save_magic(mgs_ix, sv); |
463ee0b2 | 316 | |
79072805 | 317 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 318 | const MGVTBL* const vtbl = mg->mg_virtual; |
a0d0e21e | 319 | /* omit GSKIP -- never set here */ |
727405f8 | 320 | |
2b260de0 | 321 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 322 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 323 | } |
463ee0b2 | 324 | |
8772537c | 325 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
326 | return 0; |
327 | } | |
328 | ||
954c1994 GS |
329 | /* |
330 | =for apidoc mg_find | |
331 | ||
332 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
333 | ||
334 | =cut | |
335 | */ | |
336 | ||
93a17b20 | 337 | MAGIC* |
35a4481c | 338 | Perl_mg_find(pTHX_ const SV *sv, int type) |
93a17b20 | 339 | { |
35a4481c AL |
340 | if (sv) { |
341 | MAGIC *mg; | |
342 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
343 | if (mg->mg_type == type) | |
344 | return mg; | |
345 | } | |
93a17b20 LW |
346 | } |
347 | return 0; | |
348 | } | |
349 | ||
954c1994 GS |
350 | /* |
351 | =for apidoc mg_copy | |
352 | ||
353 | Copies the magic from one SV to another. See C<sv_magic>. | |
354 | ||
355 | =cut | |
356 | */ | |
357 | ||
79072805 | 358 | int |
864dbfa3 | 359 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 360 | { |
463ee0b2 | 361 | int count = 0; |
79072805 | 362 | MAGIC* mg; |
463ee0b2 | 363 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 364 | const MGVTBL* const vtbl = mg->mg_virtual; |
68795e93 NIS |
365 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
366 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
367 | } | |
368 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 369 | sv_magic(nsv, |
14befaf4 DM |
370 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
371 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
372 | ? sv : mg->mg_obj, | |
33c27489 | 373 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 374 | count++; |
79072805 | 375 | } |
79072805 | 376 | } |
463ee0b2 | 377 | return count; |
79072805 LW |
378 | } |
379 | ||
954c1994 | 380 | /* |
0cbee0a4 DM |
381 | =for apidoc mg_localize |
382 | ||
383 | Copy some of the magic from an existing SV to new localized version of | |
384 | that SV. Container magic (eg %ENV, $1, tie) gets copied, value magic | |
385 | doesn't (eg taint, pos). | |
386 | ||
387 | =cut | |
388 | */ | |
389 | ||
390 | void | |
391 | Perl_mg_localize(pTHX_ SV *sv, SV *nsv) | |
392 | { | |
393 | MAGIC *mg; | |
394 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
395 | const MGVTBL* const vtbl = mg->mg_virtual; | |
396 | switch (mg->mg_type) { | |
397 | /* value magic types: don't copy */ | |
398 | case PERL_MAGIC_bm: | |
399 | case PERL_MAGIC_fm: | |
400 | case PERL_MAGIC_regex_global: | |
401 | case PERL_MAGIC_nkeys: | |
402 | #ifdef USE_LOCALE_COLLATE | |
403 | case PERL_MAGIC_collxfrm: | |
404 | #endif | |
405 | case PERL_MAGIC_qr: | |
406 | case PERL_MAGIC_taint: | |
407 | case PERL_MAGIC_vec: | |
408 | case PERL_MAGIC_vstring: | |
409 | case PERL_MAGIC_utf8: | |
410 | case PERL_MAGIC_substr: | |
411 | case PERL_MAGIC_defelem: | |
412 | case PERL_MAGIC_arylen: | |
413 | case PERL_MAGIC_pos: | |
414 | case PERL_MAGIC_backref: | |
415 | case PERL_MAGIC_arylen_p: | |
416 | case PERL_MAGIC_rhash: | |
417 | case PERL_MAGIC_symtab: | |
418 | continue; | |
419 | } | |
420 | ||
421 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy) { | |
422 | /* XXX calling the copy method is probably not correct. DAPM */ | |
423 | (void)CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, | |
424 | mg->mg_ptr, mg->mg_len); | |
425 | } | |
426 | else { | |
427 | sv_magicext(nsv, mg->mg_obj, mg->mg_type, vtbl, | |
428 | mg->mg_ptr, mg->mg_len); | |
429 | } | |
430 | /* container types should remain read-only across localization */ | |
431 | SvFLAGS(nsv) |= SvREADONLY(sv); | |
432 | } | |
433 | ||
434 | if (SvTYPE(nsv) >= SVt_PVMG && SvMAGIC(nsv)) { | |
435 | SvFLAGS(nsv) |= SvMAGICAL(sv); | |
436 | PL_localizing = 1; | |
437 | SvSETMAGIC(nsv); | |
438 | PL_localizing = 0; | |
439 | } | |
440 | } | |
441 | ||
442 | /* | |
954c1994 GS |
443 | =for apidoc mg_free |
444 | ||
445 | Free any magic storage used by the SV. See C<sv_magic>. | |
446 | ||
447 | =cut | |
448 | */ | |
449 | ||
79072805 | 450 | int |
864dbfa3 | 451 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
452 | { |
453 | MAGIC* mg; | |
454 | MAGIC* moremagic; | |
455 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
35a4481c | 456 | const MGVTBL* const vtbl = mg->mg_virtual; |
79072805 | 457 | moremagic = mg->mg_moremagic; |
2b260de0 | 458 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 459 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 460 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
979acdb5 | 461 | if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8) |
88e89b8a | 462 | Safefree(mg->mg_ptr); |
565764a8 | 463 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 464 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 465 | } |
b881518d JH |
466 | if (mg->mg_flags & MGf_REFCOUNTED) |
467 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
468 | Safefree(mg); |
469 | } | |
b162af07 | 470 | SvMAGIC_set(sv, NULL); |
79072805 LW |
471 | return 0; |
472 | } | |
473 | ||
79072805 | 474 | #include <signal.h> |
79072805 | 475 | |
942e002e | 476 | U32 |
864dbfa3 | 477 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 478 | { |
35a4481c | 479 | register const REGEXP *rx; |
8772537c | 480 | PERL_UNUSED_ARG(sv); |
6cef1e77 | 481 | |
aaa362c4 | 482 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
483 | if (mg->mg_obj) /* @+ */ |
484 | return rx->nparens; | |
485 | else /* @- */ | |
486 | return rx->lastparen; | |
487 | } | |
ac27b0f5 | 488 | |
942e002e | 489 | return (U32)-1; |
6cef1e77 IZ |
490 | } |
491 | ||
492 | int | |
864dbfa3 | 493 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 494 | { |
6cef1e77 | 495 | register REGEXP *rx; |
6cef1e77 | 496 | |
aaa362c4 | 497 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
35a4481c AL |
498 | register const I32 paren = mg->mg_len; |
499 | register I32 s; | |
500 | register I32 t; | |
6cef1e77 IZ |
501 | if (paren < 0) |
502 | return 0; | |
eb160463 | 503 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
504 | (s = rx->startp[paren]) != -1 && |
505 | (t = rx->endp[paren]) != -1) | |
6cef1e77 | 506 | { |
35a4481c | 507 | register I32 i; |
6cef1e77 | 508 | if (mg->mg_obj) /* @+ */ |
cf93c79d | 509 | i = t; |
6cef1e77 | 510 | else /* @- */ |
cf93c79d | 511 | i = s; |
727405f8 | 512 | |
a30b2f1f | 513 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
8772537c | 514 | const char * const b = rx->subbeg; |
0064a8a9 JH |
515 | if (b) |
516 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 517 | } |
0064a8a9 JH |
518 | |
519 | sv_setiv(sv, i); | |
6cef1e77 IZ |
520 | } |
521 | } | |
522 | return 0; | |
523 | } | |
524 | ||
e4b89193 | 525 | int |
a29d06ed MG |
526 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
527 | { | |
8772537c | 528 | PERL_UNUSED_ARG(sv); PERL_UNUSED_ARG(mg); |
a29d06ed | 529 | Perl_croak(aTHX_ PL_no_modify); |
0dbb1585 | 530 | NORETURN_FUNCTION_END; |
a29d06ed MG |
531 | } |
532 | ||
93a17b20 | 533 | U32 |
864dbfa3 | 534 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
535 | { |
536 | register I32 paren; | |
93a17b20 | 537 | register I32 i; |
dd374669 | 538 | register const REGEXP *rx; |
a197cbdd | 539 | I32 s1, t1; |
93a17b20 LW |
540 | |
541 | switch (*mg->mg_ptr) { | |
542 | case '1': case '2': case '3': case '4': | |
543 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 544 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 545 | |
ffc61ed2 | 546 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 547 | getparen: |
eb160463 | 548 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
549 | (s1 = rx->startp[paren]) != -1 && |
550 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 551 | { |
cf93c79d | 552 | i = t1 - s1; |
a197cbdd | 553 | getlen: |
a30b2f1f | 554 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
a28509cc | 555 | const char * const s = rx->subbeg + s1; |
768c67ee JH |
556 | const U8 *ep; |
557 | STRLEN el; | |
ffc61ed2 | 558 | |
6d5fa195 | 559 | i = t1 - s1; |
768c67ee JH |
560 | if (is_utf8_string_loclen((U8*)s, i, &ep, &el)) |
561 | i = el; | |
a197cbdd | 562 | } |
ffc61ed2 | 563 | if (i < 0) |
0844c848 | 564 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 565 | return i; |
93a17b20 | 566 | } |
235bddc8 NIS |
567 | else { |
568 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 569 | report_uninit(sv); |
235bddc8 NIS |
570 | } |
571 | } | |
572 | else { | |
573 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 574 | report_uninit(sv); |
93a17b20 | 575 | } |
748a9306 | 576 | return 0; |
93a17b20 | 577 | case '+': |
aaa362c4 | 578 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 579 | paren = rx->lastparen; |
13f57bf8 CS |
580 | if (paren) |
581 | goto getparen; | |
93a17b20 | 582 | } |
748a9306 | 583 | return 0; |
a01268b5 JH |
584 | case '\016': /* ^N */ |
585 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
586 | paren = rx->lastcloseparen; | |
587 | if (paren) | |
588 | goto getparen; | |
589 | } | |
590 | return 0; | |
93a17b20 | 591 | case '`': |
aaa362c4 | 592 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
593 | if (rx->startp[0] != -1) { |
594 | i = rx->startp[0]; | |
a197cbdd GS |
595 | if (i > 0) { |
596 | s1 = 0; | |
597 | t1 = i; | |
598 | goto getlen; | |
599 | } | |
93a17b20 | 600 | } |
93a17b20 | 601 | } |
748a9306 | 602 | return 0; |
93a17b20 | 603 | case '\'': |
aaa362c4 | 604 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
605 | if (rx->endp[0] != -1) { |
606 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
607 | if (i > 0) { |
608 | s1 = rx->endp[0]; | |
609 | t1 = rx->sublen; | |
610 | goto getlen; | |
611 | } | |
93a17b20 | 612 | } |
93a17b20 | 613 | } |
748a9306 | 614 | return 0; |
93a17b20 LW |
615 | } |
616 | magic_get(sv,mg); | |
2d8e6c8d | 617 | if (!SvPOK(sv) && SvNIOK(sv)) { |
8b6b16e7 | 618 | sv_2pv(sv, 0); |
2d8e6c8d | 619 | } |
93a17b20 LW |
620 | if (SvPOK(sv)) |
621 | return SvCUR(sv); | |
622 | return 0; | |
623 | } | |
624 | ||
ad3296c6 SH |
625 | #define SvRTRIM(sv) STMT_START { \ |
626 | STRLEN len = SvCUR(sv); \ | |
627 | while (len > 0 && isSPACE(SvPVX(sv)[len-1])) \ | |
628 | --len; \ | |
629 | SvCUR_set(sv, len); \ | |
630 | } STMT_END | |
631 | ||
79072805 | 632 | int |
864dbfa3 | 633 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 634 | { |
27da23d5 | 635 | dVAR; |
79072805 | 636 | register I32 paren; |
35272f84 | 637 | register char *s = NULL; |
79072805 | 638 | register I32 i; |
d9f97599 | 639 | register REGEXP *rx; |
79072805 LW |
640 | |
641 | switch (*mg->mg_ptr) { | |
748a9306 | 642 | case '\001': /* ^A */ |
3280af22 | 643 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 644 | break; |
e5218da5 GA |
645 | case '\003': /* ^C, ^CHILD_ERROR_NATIVE */ |
646 | if (*(mg->mg_ptr+1) == '\0') { | |
647 | sv_setiv(sv, (IV)PL_minus_c); | |
648 | } | |
649 | else if (strEQ(mg->mg_ptr, "\003HILD_ERROR_NATIVE")) { | |
650 | sv_setiv(sv, (IV)STATUS_NATIVE); | |
651 | } | |
49460fe6 NIS |
652 | break; |
653 | ||
79072805 | 654 | case '\004': /* ^D */ |
aea4f609 | 655 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
79072805 | 656 | break; |
28f23441 | 657 | case '\005': /* ^E */ |
0a378802 | 658 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 659 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
660 | { |
661 | char msg[256]; | |
727405f8 | 662 | |
0a378802 | 663 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 664 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 665 | } |
727405f8 | 666 | #else |
28f23441 | 667 | #ifdef VMS |
0a378802 JH |
668 | { |
669 | # include <descrip.h> | |
670 | # include <starlet.h> | |
671 | char msg[255]; | |
672 | $DESCRIPTOR(msgdsc,msg); | |
673 | sv_setnv(sv,(NV) vaxc$errno); | |
674 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
675 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
676 | else | |
c69006e4 | 677 | sv_setpvn(sv,"",0); |
0a378802 | 678 | } |
28f23441 | 679 | #else |
88e89b8a | 680 | #ifdef OS2 |
0a378802 JH |
681 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
682 | sv_setnv(sv, (NV)errno); | |
683 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
684 | } else { | |
685 | if (errno != errno_isOS2) { | |
686 | int tmp = _syserrno(); | |
687 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
688 | Perl_rc = tmp; | |
689 | } | |
690 | sv_setnv(sv, (NV)Perl_rc); | |
691 | sv_setpv(sv, os2error(Perl_rc)); | |
692 | } | |
88e89b8a | 693 | #else |
22fae026 | 694 | #ifdef WIN32 |
0a378802 JH |
695 | { |
696 | DWORD dwErr = GetLastError(); | |
697 | sv_setnv(sv, (NV)dwErr); | |
698 | if (dwErr) | |
699 | { | |
700 | PerlProc_GetOSError(sv, dwErr); | |
701 | } | |
702 | else | |
c69006e4 | 703 | sv_setpvn(sv, "", 0); |
0a378802 JH |
704 | SetLastError(dwErr); |
705 | } | |
22fae026 | 706 | #else |
f6c8f21d | 707 | { |
8772537c | 708 | const int saveerrno = errno; |
f6c8f21d RGS |
709 | sv_setnv(sv, (NV)errno); |
710 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
711 | errno = saveerrno; | |
712 | } | |
28f23441 | 713 | #endif |
88e89b8a | 714 | #endif |
22fae026 | 715 | #endif |
cd39f2b6 | 716 | #endif |
ad3296c6 | 717 | SvRTRIM(sv); |
0a378802 JH |
718 | SvNOK_on(sv); /* what a wonderful hack! */ |
719 | } | |
720 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
721 | sv_setsv(sv, PL_encoding); | |
722 | break; | |
79072805 | 723 | case '\006': /* ^F */ |
3280af22 | 724 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 725 | break; |
a0d0e21e | 726 | case '\010': /* ^H */ |
3280af22 | 727 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 728 | break; |
9d116dd7 | 729 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
730 | if (PL_inplace) |
731 | sv_setpv(sv, PL_inplace); | |
79072805 | 732 | else |
3280af22 | 733 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 734 | break; |
ac27b0f5 | 735 | case '\017': /* ^O & ^OPEN */ |
3511154c | 736 | if (*(mg->mg_ptr+1) == '\0') { |
ac27b0f5 | 737 | sv_setpv(sv, PL_osname); |
3511154c DM |
738 | SvTAINTED_off(sv); |
739 | } | |
ac27b0f5 NIS |
740 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
741 | if (!PL_compiling.cop_io) | |
742 | sv_setsv(sv, &PL_sv_undef); | |
743 | else { | |
744 | sv_setsv(sv, PL_compiling.cop_io); | |
745 | } | |
746 | } | |
28f23441 | 747 | break; |
79072805 | 748 | case '\020': /* ^P */ |
3280af22 | 749 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 750 | break; |
fb73857a | 751 | case '\023': /* ^S */ |
4ffa73a3 | 752 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 753 | if (PL_lex_state != LEX_NOTPARSING) |
0c34ef67 | 754 | SvOK_off(sv); |
3280af22 | 755 | else if (PL_in_eval) |
6dc8a9e4 | 756 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
757 | else |
758 | sv_setiv(sv, 0); | |
d58bf5aa | 759 | } |
fb73857a | 760 | break; |
79072805 | 761 | case '\024': /* ^T */ |
7c36658b | 762 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 763 | #ifdef BIG_TIME |
7c36658b | 764 | sv_setnv(sv, PL_basetime); |
88e89b8a | 765 | #else |
7c36658b | 766 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 767 | #endif |
7c36658b MS |
768 | } |
769 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
770 | sv_setiv(sv, PL_tainting |
771 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
772 | : 0); | |
7c36658b | 773 | break; |
7cebcbc0 | 774 | case '\025': /* $^UNICODE, $^UTF8LOCALE */ |
a05d7ebb JH |
775 | if (strEQ(mg->mg_ptr, "\025NICODE")) |
776 | sv_setuv(sv, (UV) PL_unicode); | |
7cebcbc0 NC |
777 | else if (strEQ(mg->mg_ptr, "\025TF8LOCALE")) |
778 | sv_setuv(sv, (UV) PL_utf8locale); | |
fde18df1 JH |
779 | break; |
780 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
781 | if (*(mg->mg_ptr+1) == '\0') |
782 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 783 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
784 | if (PL_compiling.cop_warnings == pWARN_NONE || |
785 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
786 | { |
787 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
788 | } | |
d3a7d8c7 | 789 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
790 | /* Get the bit mask for $warnings::Bits{all}, because |
791 | * it could have been extended by warnings::register */ | |
792 | SV **bits_all; | |
793 | HV *bits=get_hv("warnings::Bits", FALSE); | |
794 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
795 | sv_setsv(sv, *bits_all); | |
796 | } | |
797 | else { | |
798 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
799 | } | |
ac27b0f5 | 800 | } |
4438c4b7 JH |
801 | else { |
802 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 803 | } |
d3a7d8c7 | 804 | SvPOK_only(sv); |
4438c4b7 | 805 | } |
79072805 LW |
806 | break; |
807 | case '1': case '2': case '3': case '4': | |
808 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 809 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
810 | I32 s1, t1; |
811 | ||
a863c7d1 MB |
812 | /* |
813 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
814 | * XXX Does the new way break anything? | |
815 | */ | |
ffc61ed2 | 816 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 817 | getparen: |
eb160463 | 818 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
819 | (s1 = rx->startp[paren]) != -1 && |
820 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 821 | { |
cf93c79d IZ |
822 | i = t1 - s1; |
823 | s = rx->subbeg + s1; | |
01ec43d0 | 824 | if (!rx->subbeg) |
c2e66d9e GS |
825 | break; |
826 | ||
13f57bf8 | 827 | getrx: |
748a9306 | 828 | if (i >= 0) { |
cf93c79d | 829 | sv_setpvn(sv, s, i); |
a30b2f1f | 830 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
831 | SvUTF8_on(sv); |
832 | else | |
833 | SvUTF8_off(sv); | |
e9814ee1 HS |
834 | if (PL_tainting) { |
835 | if (RX_MATCH_TAINTED(rx)) { | |
836 | MAGIC* mg = SvMAGIC(sv); | |
837 | MAGIC* mgt; | |
838 | PL_tainted = 1; | |
b162af07 | 839 | SvMAGIC_set(sv, mg->mg_moremagic); |
e9814ee1 HS |
840 | SvTAINT(sv); |
841 | if ((mgt = SvMAGIC(sv))) { | |
842 | mg->mg_moremagic = mgt; | |
b162af07 | 843 | SvMAGIC_set(sv, mg); |
e9814ee1 HS |
844 | } |
845 | } else | |
846 | SvTAINTED_off(sv); | |
847 | } | |
748a9306 LW |
848 | break; |
849 | } | |
79072805 | 850 | } |
79072805 | 851 | } |
3280af22 | 852 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
853 | break; |
854 | case '+': | |
aaa362c4 | 855 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 856 | paren = rx->lastparen; |
a0d0e21e LW |
857 | if (paren) |
858 | goto getparen; | |
79072805 | 859 | } |
3280af22 | 860 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 861 | break; |
a01268b5 JH |
862 | case '\016': /* ^N */ |
863 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
864 | paren = rx->lastcloseparen; | |
865 | if (paren) | |
866 | goto getparen; | |
867 | } | |
868 | sv_setsv(sv,&PL_sv_undef); | |
869 | break; | |
79072805 | 870 | case '`': |
aaa362c4 | 871 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
872 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
873 | i = rx->startp[0]; | |
13f57bf8 | 874 | goto getrx; |
79072805 | 875 | } |
79072805 | 876 | } |
3280af22 | 877 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
878 | break; |
879 | case '\'': | |
aaa362c4 | 880 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
881 | if (rx->subbeg && rx->endp[0] != -1) { |
882 | s = rx->subbeg + rx->endp[0]; | |
883 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 884 | goto getrx; |
79072805 | 885 | } |
79072805 | 886 | } |
3280af22 | 887 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
888 | break; |
889 | case '.': | |
3280af22 | 890 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 891 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 | 892 | } |
79072805 LW |
893 | break; |
894 | case '?': | |
809a5acc | 895 | { |
809a5acc | 896 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 897 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
898 | LvTARGOFF(sv) = PL_statusvalue; |
899 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 900 | #endif |
809a5acc | 901 | } |
79072805 LW |
902 | break; |
903 | case '^': | |
0daa599b RGS |
904 | if (GvIOp(PL_defoutgv)) |
905 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
906 | if (s) |
907 | sv_setpv(sv,s); | |
908 | else { | |
3280af22 | 909 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
910 | sv_catpv(sv,"_TOP"); |
911 | } | |
912 | break; | |
913 | case '~': | |
0daa599b RGS |
914 | if (GvIOp(PL_defoutgv)) |
915 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 916 | if (!s) |
3280af22 | 917 | s = GvENAME(PL_defoutgv); |
79072805 LW |
918 | sv_setpv(sv,s); |
919 | break; | |
79072805 | 920 | case '=': |
0daa599b RGS |
921 | if (GvIOp(PL_defoutgv)) |
922 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
923 | break; |
924 | case '-': | |
0daa599b RGS |
925 | if (GvIOp(PL_defoutgv)) |
926 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
927 | break; |
928 | case '%': | |
0daa599b RGS |
929 | if (GvIOp(PL_defoutgv)) |
930 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 | 931 | break; |
79072805 LW |
932 | case ':': |
933 | break; | |
934 | case '/': | |
935 | break; | |
936 | case '[': | |
3280af22 | 937 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
938 | break; |
939 | case '|': | |
0daa599b RGS |
940 | if (GvIOp(PL_defoutgv)) |
941 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
942 | break; |
943 | case ',': | |
79072805 LW |
944 | break; |
945 | case '\\': | |
b2ce0fda | 946 | if (PL_ors_sv) |
f28098ff | 947 | sv_copypv(sv, PL_ors_sv); |
79072805 | 948 | break; |
79072805 | 949 | case '!': |
a5f75d66 | 950 | #ifdef VMS |
65202027 | 951 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 952 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 953 | #else |
88e89b8a | 954 | { |
8772537c | 955 | const int saveerrno = errno; |
65202027 | 956 | sv_setnv(sv, (NV)errno); |
88e89b8a | 957 | #ifdef OS2 |
ed344e4f IZ |
958 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
959 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 960 | else |
a5f75d66 | 961 | #endif |
2304df62 | 962 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 963 | errno = saveerrno; |
964 | } | |
965 | #endif | |
ad3296c6 | 966 | SvRTRIM(sv); |
946ec16e | 967 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
968 | break; |
969 | case '<': | |
3280af22 | 970 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
971 | break; |
972 | case '>': | |
3280af22 | 973 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
974 | break; |
975 | case '(': | |
3280af22 | 976 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 977 | #ifdef HAS_GETGROUPS |
a3b680e6 | 978 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_gid); |
a52cb5f7 | 979 | #endif |
79072805 LW |
980 | goto add_groups; |
981 | case ')': | |
3280af22 | 982 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 983 | #ifdef HAS_GETGROUPS |
a3b680e6 | 984 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_egid); |
a52cb5f7 | 985 | #endif |
79072805 | 986 | add_groups: |
79072805 | 987 | #ifdef HAS_GETGROUPS |
79072805 | 988 | { |
a0d0e21e | 989 | Groups_t gary[NGROUPS]; |
a3b680e6 AL |
990 | I32 j = getgroups(NGROUPS,gary); |
991 | while (--j >= 0) | |
992 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, (long unsigned int)gary[j]); | |
79072805 LW |
993 | } |
994 | #endif | |
155aba94 | 995 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 | 996 | break; |
cd39f2b6 | 997 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
998 | case '0': |
999 | break; | |
cd39f2b6 | 1000 | #endif |
79072805 | 1001 | } |
a0d0e21e | 1002 | return 0; |
79072805 LW |
1003 | } |
1004 | ||
1005 | int | |
864dbfa3 | 1006 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1007 | { |
8772537c | 1008 | struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
1009 | |
1010 | if (uf && uf->uf_val) | |
24f81a43 | 1011 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1012 | return 0; |
1013 | } | |
1014 | ||
1015 | int | |
864dbfa3 | 1016 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1017 | { |
27da23d5 | 1018 | dVAR; |
b83604b4 | 1019 | const char *s; |
e62f0680 | 1020 | const char *ptr; |
5aabfad6 | 1021 | STRLEN len, klen; |
1e422769 | 1022 | |
b83604b4 | 1023 | s = SvPV_const(sv,len); |
e62f0680 | 1024 | ptr = MgPV_const(mg,klen); |
88e89b8a | 1025 | my_setenv(ptr, s); |
1e422769 | 1026 | |
a0d0e21e LW |
1027 | #ifdef DYNAMIC_ENV_FETCH |
1028 | /* We just undefd an environment var. Is a replacement */ | |
1029 | /* waiting in the wings? */ | |
1030 | if (!len) { | |
5aabfad6 | 1031 | SV **valp; |
6b88bc9c | 1032 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
b83604b4 | 1033 | s = SvPV_const(*valp, len); |
a0d0e21e LW |
1034 | } |
1035 | #endif | |
1e422769 | 1036 | |
39e571d4 | 1037 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
1038 | /* And you'll never guess what the dog had */ |
1039 | /* in its mouth... */ | |
3280af22 | 1040 | if (PL_tainting) { |
1e422769 | 1041 | MgTAINTEDDIR_off(mg); |
1042 | #ifdef VMS | |
5aabfad6 | 1043 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 1044 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 1045 | Stat_t sbuf; |
1e422769 | 1046 | int i = 0, j = 0; |
1047 | ||
1048 | do { /* DCL$PATH may be a search list */ | |
1049 | while (1) { /* as may dev portion of any element */ | |
1050 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
1051 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
1052 | cando_by_name(S_IWUSR,0,elt) ) { | |
1053 | MgTAINTEDDIR_on(mg); | |
1054 | return 0; | |
1055 | } | |
1056 | } | |
1057 | if ((cp = strchr(elt, ':')) != Nullch) | |
1058 | *cp = '\0'; | |
1059 | if (my_trnlnm(elt, eltbuf, j++)) | |
1060 | elt = eltbuf; | |
1061 | else | |
1062 | break; | |
1063 | } | |
1064 | j = 0; | |
1065 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
1066 | } | |
1067 | #endif /* VMS */ | |
5aabfad6 | 1068 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
8772537c | 1069 | const char * const strend = s + len; |
463ee0b2 LW |
1070 | |
1071 | while (s < strend) { | |
96827780 | 1072 | char tmpbuf[256]; |
c623ac67 | 1073 | Stat_t st; |
5f74f29c | 1074 | I32 i; |
96827780 | 1075 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 1076 | s, strend, ':', &i); |
463ee0b2 | 1077 | s++; |
96827780 MB |
1078 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
1079 | || *tmpbuf != '/' | |
c6ed36e1 | 1080 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 1081 | MgTAINTEDDIR_on(mg); |
1e422769 | 1082 | return 0; |
1083 | } | |
463ee0b2 | 1084 | } |
79072805 LW |
1085 | } |
1086 | } | |
39e571d4 | 1087 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1088 | |
79072805 LW |
1089 | return 0; |
1090 | } | |
1091 | ||
1092 | int | |
864dbfa3 | 1093 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1094 | { |
8772537c | 1095 | PERL_UNUSED_ARG(sv); |
01b8bcb7 | 1096 | my_setenv(MgPV_nolen_const(mg),Nullch); |
85e6fe83 LW |
1097 | return 0; |
1098 | } | |
1099 | ||
88e89b8a | 1100 | int |
864dbfa3 | 1101 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1102 | { |
27da23d5 | 1103 | #if defined(VMS) || defined(EPOC) || defined(SYMBIAN) |
cea2e8a9 | 1104 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1105 | #else |
3280af22 | 1106 | if (PL_localizing) { |
fb73857a | 1107 | HE* entry; |
1108 | magic_clear_all_env(sv,mg); | |
1109 | hv_iterinit((HV*)sv); | |
155aba94 | 1110 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1111 | I32 keylen; |
1112 | my_setenv(hv_iterkey(entry, &keylen), | |
b83604b4 | 1113 | SvPV_nolen_const(hv_iterval((HV*)sv, entry))); |
fb73857a | 1114 | } |
1115 | } | |
1116 | #endif | |
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | int | |
864dbfa3 | 1121 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1122 | { |
27da23d5 | 1123 | dVAR; |
2f42fcb0 | 1124 | #ifndef PERL_MICRO |
27da23d5 | 1125 | #if defined(VMS) || defined(EPOC) || defined(SYMBIAN) |
cea2e8a9 | 1126 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1127 | #else |
4efc5df6 | 1128 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1129 | PerlEnv_clearenv(); |
4efc5df6 GS |
1130 | # else |
1131 | # ifdef USE_ENVIRON_ARRAY | |
1132 | # if defined(USE_ITHREADS) | |
1133 | /* only the parent thread can clobber the process environment */ | |
1134 | if (PL_curinterp == aTHX) | |
1135 | # endif | |
1136 | { | |
1137 | # ifndef PERL_USE_SAFE_PUTENV | |
50acdf95 | 1138 | if (!PL_use_safe_putenv) { |
66b1d557 HM |
1139 | I32 i; |
1140 | ||
3280af22 | 1141 | if (environ == PL_origenviron) |
f2517201 | 1142 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1143 | else |
1144 | for (i = 0; environ[i]; i++) | |
f2517201 | 1145 | safesysfree(environ[i]); |
50acdf95 | 1146 | } |
4efc5df6 | 1147 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1148 | |
66b1d557 | 1149 | environ[0] = Nullch; |
4efc5df6 GS |
1150 | } |
1151 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 | 1152 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
2f42fcb0 JH |
1153 | #endif /* VMS || EPOC */ |
1154 | #endif /* !PERL_MICRO */ | |
8772537c AL |
1155 | PERL_UNUSED_ARG(sv); |
1156 | PERL_UNUSED_ARG(mg); | |
3e3baf6d | 1157 | return 0; |
66b1d557 HM |
1158 | } |
1159 | ||
64ca3a65 | 1160 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1161 | #ifdef HAS_SIGPROCMASK |
1162 | static void | |
1163 | restore_sigmask(pTHX_ SV *save_sv) | |
1164 | { | |
b83604b4 | 1165 | const sigset_t *ossetp = (const sigset_t *) SvPV_nolen_const( save_sv ); |
2d4fcd5e AJ |
1166 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); |
1167 | } | |
1168 | #endif | |
66b1d557 | 1169 | int |
864dbfa3 | 1170 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1171 | { |
88e89b8a | 1172 | /* Are we fetching a signal entry? */ |
8772537c | 1173 | const I32 i = whichsig(MgPV_nolen_const(mg)); |
e02bfb16 | 1174 | if (i > 0) { |
22c35a8c GS |
1175 | if(PL_psig_ptr[i]) |
1176 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1177 | else { |
85b332e2 | 1178 | Sighandler_t sigstate; |
2e34cc90 | 1179 | sigstate = rsignal_state(i); |
23ada85b | 1180 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1181 | if (PL_sig_handlers_initted && PL_sig_ignoring[i]) sigstate = SIG_IGN; |
2e34cc90 CL |
1182 | #endif |
1183 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1184 | if (PL_sig_handlers_initted && PL_sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 | 1185 | #endif |
88e89b8a | 1186 | /* cache state so we don't fetch it again */ |
ff68c719 | 1187 | if(sigstate == SIG_IGN) |
88e89b8a | 1188 | sv_setpv(sv,"IGNORE"); |
1189 | else | |
3280af22 | 1190 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1191 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1192 | SvTEMP_off(sv); |
1193 | } | |
1194 | } | |
1195 | return 0; | |
1196 | } | |
1197 | int | |
864dbfa3 | 1198 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1199 | { |
2d4fcd5e AJ |
1200 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1201 | * refactoring might be in order. | |
1202 | */ | |
27da23d5 | 1203 | dVAR; |
8772537c AL |
1204 | register const char * const s = MgPV_nolen_const(mg); |
1205 | PERL_UNUSED_ARG(sv); | |
2d4fcd5e | 1206 | if (*s == '_') { |
27da23d5 | 1207 | SV** svp = 0; |
2d4fcd5e AJ |
1208 | if (strEQ(s,"__DIE__")) |
1209 | svp = &PL_diehook; | |
1210 | else if (strEQ(s,"__WARN__")) | |
1211 | svp = &PL_warnhook; | |
1212 | else | |
1213 | Perl_croak(aTHX_ "No such hook: %s", s); | |
27da23d5 | 1214 | if (svp && *svp) { |
8772537c | 1215 | SV * const to_dec = *svp; |
2d4fcd5e AJ |
1216 | *svp = 0; |
1217 | SvREFCNT_dec(to_dec); | |
1218 | } | |
1219 | } | |
1220 | else { | |
2d4fcd5e | 1221 | /* Are we clearing a signal entry? */ |
8772537c | 1222 | const I32 i = whichsig(s); |
e02bfb16 | 1223 | if (i > 0) { |
2d4fcd5e AJ |
1224 | #ifdef HAS_SIGPROCMASK |
1225 | sigset_t set, save; | |
1226 | SV* save_sv; | |
1227 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1228 | sigemptyset(&set); | |
1229 | sigaddset(&set,i); | |
1230 | sigprocmask(SIG_BLOCK, &set, &save); | |
1231 | ENTER; | |
1232 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1233 | SAVEFREESV(save_sv); | |
1234 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1235 | #endif | |
1236 | PERL_ASYNC_CHECK(); | |
1237 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
27da23d5 | 1238 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2d4fcd5e AJ |
1239 | #endif |
1240 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1241 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1242 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1243 | #else |
1244 | (void)rsignal(i, SIG_DFL); | |
1245 | #endif | |
1246 | if(PL_psig_name[i]) { | |
1247 | SvREFCNT_dec(PL_psig_name[i]); | |
1248 | PL_psig_name[i]=0; | |
1249 | } | |
1250 | if(PL_psig_ptr[i]) { | |
dd374669 | 1251 | SV *to_dec=PL_psig_ptr[i]; |
2d4fcd5e AJ |
1252 | PL_psig_ptr[i]=0; |
1253 | LEAVE; | |
1254 | SvREFCNT_dec(to_dec); | |
1255 | } | |
1256 | else | |
1257 | LEAVE; | |
1258 | } | |
88e89b8a | 1259 | } |
1260 | return 0; | |
1261 | } | |
3d37d572 | 1262 | |
dd374669 AL |
1263 | static void |
1264 | S_raise_signal(pTHX_ int sig) | |
0a8e0eff NIS |
1265 | { |
1266 | /* Set a flag to say this signal is pending */ | |
1267 | PL_psig_pend[sig]++; | |
1268 | /* And one to say _a_ signal is pending */ | |
1269 | PL_sig_pending = 1; | |
1270 | } | |
1271 | ||
1272 | Signal_t | |
1273 | Perl_csighandler(int sig) | |
1274 | { | |
1018e26f NIS |
1275 | #ifdef PERL_GET_SIG_CONTEXT |
1276 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1277 | #else | |
85b332e2 CL |
1278 | dTHX; |
1279 | #endif | |
23ada85b | 1280 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc | 1281 | (void) rsignal(sig, PL_csighandlerp); |
27da23d5 | 1282 | if (PL_sig_ignoring[sig]) return; |
85b332e2 | 1283 | #endif |
2e34cc90 | 1284 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1285 | if (PL_sig_defaulting[sig]) |
2e34cc90 CL |
1286 | #ifdef KILL_BY_SIGPRC |
1287 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1288 | #else | |
1289 | exit(1); | |
1290 | #endif | |
1291 | #endif | |
4ffa73a3 JH |
1292 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1293 | /* Call the perl level handler now-- | |
1294 | * with risk we may be in malloc() etc. */ | |
1295 | (*PL_sighandlerp)(sig); | |
1296 | else | |
dd374669 | 1297 | S_raise_signal(aTHX_ sig); |
0a8e0eff NIS |
1298 | } |
1299 | ||
2e34cc90 CL |
1300 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1301 | void | |
1302 | Perl_csighandler_init(void) | |
1303 | { | |
1304 | int sig; | |
27da23d5 | 1305 | if (PL_sig_handlers_initted) return; |
2e34cc90 CL |
1306 | |
1307 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1308 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1309 | dTHX; |
27da23d5 | 1310 | PL_sig_defaulting[sig] = 1; |
5c1546dc | 1311 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1312 | #endif |
1313 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
27da23d5 | 1314 | PL_sig_ignoring[sig] = 0; |
2e34cc90 CL |
1315 | #endif |
1316 | } | |
27da23d5 | 1317 | PL_sig_handlers_initted = 1; |
2e34cc90 CL |
1318 | } |
1319 | #endif | |
1320 | ||
0a8e0eff NIS |
1321 | void |
1322 | Perl_despatch_signals(pTHX) | |
1323 | { | |
1324 | int sig; | |
1325 | PL_sig_pending = 0; | |
1326 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1327 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1328 | PERL_BLOCKSIG_ADD(set, sig); |
1329 | PL_psig_pend[sig] = 0; | |
1330 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1331 | (*PL_sighandlerp)(sig); |
25da4428 | 1332 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1333 | } |
1334 | } | |
1335 | } | |
1336 | ||
85e6fe83 | 1337 | int |
864dbfa3 | 1338 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1339 | { |
27da23d5 | 1340 | dVAR; |
79072805 | 1341 | I32 i; |
b7953727 | 1342 | SV** svp = 0; |
2d4fcd5e AJ |
1343 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1344 | * effects (due to closures). We must make sure that the new disposition | |
1345 | * is in place before it is called. | |
1346 | */ | |
1347 | SV* to_dec = 0; | |
e72dc28c | 1348 | STRLEN len; |
2d4fcd5e AJ |
1349 | #ifdef HAS_SIGPROCMASK |
1350 | sigset_t set, save; | |
1351 | SV* save_sv; | |
1352 | #endif | |
a0d0e21e | 1353 | |
d5263905 | 1354 | register const char *s = MgPV_const(mg,len); |
748a9306 LW |
1355 | if (*s == '_') { |
1356 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1357 | svp = &PL_diehook; |
748a9306 | 1358 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1359 | svp = &PL_warnhook; |
748a9306 | 1360 | else |
cea2e8a9 | 1361 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1362 | i = 0; |
4633a7c4 | 1363 | if (*svp) { |
2d4fcd5e | 1364 | to_dec = *svp; |
4633a7c4 LW |
1365 | *svp = 0; |
1366 | } | |
748a9306 LW |
1367 | } |
1368 | else { | |
1369 | i = whichsig(s); /* ...no, a brick */ | |
86d86cad | 1370 | if (i <= 0) { |
e476b1b5 | 1371 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1372 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1373 | return 0; |
1374 | } | |
2d4fcd5e AJ |
1375 | #ifdef HAS_SIGPROCMASK |
1376 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1377 | sigemptyset(&set); | |
1378 | sigaddset(&set,i); | |
1379 | sigprocmask(SIG_BLOCK, &set, &save); | |
1380 | ENTER; | |
1381 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1382 | SAVEFREESV(save_sv); | |
1383 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1384 | #endif | |
1385 | PERL_ASYNC_CHECK(); | |
2e34cc90 | 1386 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
27da23d5 | 1387 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2e34cc90 | 1388 | #endif |
23ada85b | 1389 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1390 | PL_sig_ignoring[i] = 0; |
85b332e2 | 1391 | #endif |
2e34cc90 | 1392 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1393 | PL_sig_defaulting[i] = 0; |
2e34cc90 | 1394 | #endif |
22c35a8c | 1395 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1396 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1397 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1398 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1399 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1400 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1401 | } |
a0d0e21e | 1402 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1403 | if (i) { |
5c1546dc | 1404 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1405 | #ifdef HAS_SIGPROCMASK |
1406 | LEAVE; | |
1407 | #endif | |
1408 | } | |
748a9306 LW |
1409 | else |
1410 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1411 | if(to_dec) |
1412 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1413 | return 0; |
1414 | } | |
e72dc28c | 1415 | s = SvPV_force(sv,len); |
748a9306 | 1416 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1417 | if (i) { |
23ada85b | 1418 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1419 | PL_sig_ignoring[i] = 1; |
5c1546dc | 1420 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1421 | #else |
ff68c719 | 1422 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1423 | #endif |
2d4fcd5e | 1424 | } |
748a9306 LW |
1425 | } |
1426 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1427 | if (i) | |
2e34cc90 CL |
1428 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1429 | { | |
27da23d5 | 1430 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1431 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1432 | } |
1433 | #else | |
ff68c719 | 1434 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1435 | #endif |
748a9306 | 1436 | } |
79072805 | 1437 | else { |
5aabfad6 | 1438 | /* |
1439 | * We should warn if HINT_STRICT_REFS, but without | |
1440 | * access to a known hint bit in a known OP, we can't | |
1441 | * tell whether HINT_STRICT_REFS is in force or not. | |
1442 | */ | |
46fc3d4c | 1443 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1444 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1445 | if (i) |
5c1546dc | 1446 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1447 | else |
1448 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1449 | } |
2d4fcd5e AJ |
1450 | #ifdef HAS_SIGPROCMASK |
1451 | if(i) | |
1452 | LEAVE; | |
1453 | #endif | |
1454 | if(to_dec) | |
1455 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1456 | return 0; |
1457 | } | |
64ca3a65 | 1458 | #endif /* !PERL_MICRO */ |
79072805 LW |
1459 | |
1460 | int | |
864dbfa3 | 1461 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1462 | { |
8772537c AL |
1463 | PERL_UNUSED_ARG(sv); |
1464 | PERL_UNUSED_ARG(mg); | |
3280af22 | 1465 | PL_sub_generation++; |
463ee0b2 LW |
1466 | return 0; |
1467 | } | |
1468 | ||
1469 | int | |
864dbfa3 | 1470 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1471 | { |
8772537c AL |
1472 | PERL_UNUSED_ARG(sv); |
1473 | PERL_UNUSED_ARG(mg); | |
a0d0e21e | 1474 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1475 | PL_amagic_generation++; |
463ee0b2 | 1476 | |
a0d0e21e LW |
1477 | return 0; |
1478 | } | |
463ee0b2 | 1479 | |
946ec16e | 1480 | int |
864dbfa3 | 1481 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1482 | { |
dd374669 | 1483 | HV * const hv = (HV*)LvTARG(sv); |
6ff81951 | 1484 | I32 i = 0; |
8772537c | 1485 | PERL_UNUSED_ARG(mg); |
7719e241 | 1486 | |
6ff81951 | 1487 | if (hv) { |
497b47a8 JH |
1488 | (void) hv_iterinit(hv); |
1489 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1490 | i = HvKEYS(hv); | |
1491 | else { | |
1492 | while (hv_iternext(hv)) | |
1493 | i++; | |
1494 | } | |
6ff81951 GS |
1495 | } |
1496 | ||
1497 | sv_setiv(sv, (IV)i); | |
1498 | return 0; | |
1499 | } | |
1500 | ||
1501 | int | |
864dbfa3 | 1502 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1503 | { |
8772537c | 1504 | PERL_UNUSED_ARG(mg); |
946ec16e | 1505 | if (LvTARG(sv)) { |
1506 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1507 | } |
1508 | return 0; | |
ac27b0f5 | 1509 | } |
946ec16e | 1510 | |
e336de0d | 1511 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1512 | STATIC int |
e1ec3a88 | 1513 | S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1514 | { |
1515 | dSP; | |
463ee0b2 | 1516 | |
924508f0 GS |
1517 | PUSHMARK(SP); |
1518 | EXTEND(SP, n); | |
33c27489 | 1519 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1520 | if (n > 1) { |
93965878 | 1521 | if (mg->mg_ptr) { |
565764a8 | 1522 | if (mg->mg_len >= 0) |
79cb57f6 | 1523 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1524 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1525 | PUSHs((SV*)mg->mg_ptr); |
1526 | } | |
14befaf4 | 1527 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1528 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1529 | } |
1530 | } | |
1531 | if (n > 2) { | |
1532 | PUSHs(val); | |
88e89b8a | 1533 | } |
463ee0b2 LW |
1534 | PUTBACK; |
1535 | ||
864dbfa3 | 1536 | return call_method(meth, flags); |
946ec16e | 1537 | } |
1538 | ||
76e3520e | 1539 | STATIC int |
e1ec3a88 | 1540 | S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth) |
a0d0e21e | 1541 | { |
27da23d5 | 1542 | dVAR; dSP; |
463ee0b2 | 1543 | |
a0d0e21e LW |
1544 | ENTER; |
1545 | SAVETMPS; | |
e788e7d3 | 1546 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1547 | |
33c27489 | 1548 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1549 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1550 | } |
463ee0b2 | 1551 | |
d3acc0f7 | 1552 | POPSTACK; |
a0d0e21e LW |
1553 | FREETMPS; |
1554 | LEAVE; | |
1555 | return 0; | |
1556 | } | |
463ee0b2 | 1557 | |
a0d0e21e | 1558 | int |
864dbfa3 | 1559 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1560 | { |
a0d0e21e LW |
1561 | if (mg->mg_ptr) |
1562 | mg->mg_flags |= MGf_GSKIP; | |
58f82c5c | 1563 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1564 | return 0; |
1565 | } | |
1566 | ||
1567 | int | |
864dbfa3 | 1568 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d | 1569 | { |
27da23d5 | 1570 | dVAR; dSP; |
a60c0954 | 1571 | ENTER; |
e788e7d3 | 1572 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1573 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1574 | POPSTACK; |
a60c0954 | 1575 | LEAVE; |
463ee0b2 LW |
1576 | return 0; |
1577 | } | |
1578 | ||
1579 | int | |
864dbfa3 | 1580 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1581 | { |
a0d0e21e LW |
1582 | return magic_methpack(sv,mg,"DELETE"); |
1583 | } | |
463ee0b2 | 1584 | |
93965878 NIS |
1585 | |
1586 | U32 | |
864dbfa3 | 1587 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1588 | { |
27da23d5 | 1589 | dVAR; dSP; |
93965878 NIS |
1590 | U32 retval = 0; |
1591 | ||
1592 | ENTER; | |
1593 | SAVETMPS; | |
e788e7d3 | 1594 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1595 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1596 | sv = *PL_stack_sp--; |
a60c0954 | 1597 | retval = (U32) SvIV(sv)-1; |
93965878 | 1598 | } |
d3acc0f7 | 1599 | POPSTACK; |
93965878 NIS |
1600 | FREETMPS; |
1601 | LEAVE; | |
1602 | return retval; | |
1603 | } | |
1604 | ||
cea2e8a9 GS |
1605 | int |
1606 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e | 1607 | { |
27da23d5 | 1608 | dVAR; dSP; |
463ee0b2 | 1609 | |
e336de0d | 1610 | ENTER; |
e788e7d3 | 1611 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1612 | PUSHMARK(SP); |
33c27489 | 1613 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1614 | PUTBACK; |
864dbfa3 | 1615 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1616 | POPSTACK; |
a60c0954 | 1617 | LEAVE; |
a3bcc51e | 1618 | |
463ee0b2 LW |
1619 | return 0; |
1620 | } | |
1621 | ||
1622 | int | |
864dbfa3 | 1623 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1624 | { |
27da23d5 | 1625 | dVAR; dSP; |
35a4481c | 1626 | const char * const meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1627 | |
1628 | ENTER; | |
a0d0e21e | 1629 | SAVETMPS; |
e788e7d3 | 1630 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1631 | PUSHMARK(SP); |
1632 | EXTEND(SP, 2); | |
33c27489 | 1633 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1634 | if (SvOK(key)) |
1635 | PUSHs(key); | |
1636 | PUTBACK; | |
1637 | ||
864dbfa3 | 1638 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1639 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1640 | |
d3acc0f7 | 1641 | POPSTACK; |
a0d0e21e LW |
1642 | FREETMPS; |
1643 | LEAVE; | |
79072805 LW |
1644 | return 0; |
1645 | } | |
1646 | ||
1647 | int | |
864dbfa3 | 1648 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1649 | { |
1650 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1651 | } |
a0d0e21e | 1652 | |
a3bcc51e TP |
1653 | SV * |
1654 | Perl_magic_scalarpack(pTHX_ HV *hv, MAGIC *mg) | |
1655 | { | |
27da23d5 | 1656 | dVAR; dSP; |
a3bcc51e | 1657 | SV *retval = &PL_sv_undef; |
8772537c AL |
1658 | SV * const tied = SvTIED_obj((SV*)hv, mg); |
1659 | HV * const pkg = SvSTASH((SV*)SvRV(tied)); | |
a3bcc51e TP |
1660 | |
1661 | if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) { | |
1662 | SV *key; | |
bfcb3514 | 1663 | if (HvEITER_get(hv)) |
a3bcc51e TP |
1664 | /* we are in an iteration so the hash cannot be empty */ |
1665 | return &PL_sv_yes; | |
1666 | /* no xhv_eiter so now use FIRSTKEY */ | |
1667 | key = sv_newmortal(); | |
1668 | magic_nextpack((SV*)hv, mg, key); | |
bfcb3514 | 1669 | HvEITER_set(hv, NULL); /* need to reset iterator */ |
a3bcc51e TP |
1670 | return SvOK(key) ? &PL_sv_yes : &PL_sv_no; |
1671 | } | |
1672 | ||
1673 | /* there is a SCALAR method that we can call */ | |
1674 | ENTER; | |
1675 | PUSHSTACKi(PERLSI_MAGIC); | |
1676 | PUSHMARK(SP); | |
1677 | EXTEND(SP, 1); | |
1678 | PUSHs(tied); | |
1679 | PUTBACK; | |
1680 | ||
1681 | if (call_method("SCALAR", G_SCALAR)) | |
1682 | retval = *PL_stack_sp--; | |
1683 | POPSTACK; | |
1684 | LEAVE; | |
1685 | return retval; | |
1686 | } | |
1687 | ||
a0d0e21e | 1688 | int |
864dbfa3 | 1689 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1690 | { |
8772537c AL |
1691 | GV * const gv = PL_DBline; |
1692 | const I32 i = SvTRUE(sv); | |
1693 | SV ** const svp = av_fetch(GvAV(gv), | |
01b8bcb7 | 1694 | atoi(MgPV_nolen_const(mg)), FALSE); |
8772537c AL |
1695 | if (svp && SvIOKp(*svp)) { |
1696 | OP * const o = INT2PTR(OP*,SvIVX(*svp)); | |
1697 | if (o) { | |
1698 | /* set or clear breakpoint in the relevant control op */ | |
1699 | if (i) | |
1700 | o->op_flags |= OPf_SPECIAL; | |
1701 | else | |
1702 | o->op_flags &= ~OPf_SPECIAL; | |
1703 | } | |
5df8de69 | 1704 | } |
79072805 LW |
1705 | return 0; |
1706 | } | |
1707 | ||
1708 | int | |
8772537c | 1709 | Perl_magic_getarylen(pTHX_ SV *sv, const MAGIC *mg) |
79072805 | 1710 | { |
8772537c | 1711 | const AV * const obj = (AV*)mg->mg_obj; |
83bf042f NC |
1712 | if (obj) { |
1713 | sv_setiv(sv, AvFILL(obj) + PL_curcop->cop_arybase); | |
1714 | } else { | |
1715 | SvOK_off(sv); | |
1716 | } | |
79072805 LW |
1717 | return 0; |
1718 | } | |
1719 | ||
1720 | int | |
864dbfa3 | 1721 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1722 | { |
8772537c | 1723 | AV * const obj = (AV*)mg->mg_obj; |
83bf042f NC |
1724 | if (obj) { |
1725 | av_fill(obj, SvIV(sv) - PL_curcop->cop_arybase); | |
1726 | } else { | |
1727 | if (ckWARN(WARN_MISC)) | |
1728 | Perl_warner(aTHX_ packWARN(WARN_MISC), | |
1729 | "Attempt to set length of freed array"); | |
1730 | } | |
1731 | return 0; | |
1732 | } | |
1733 | ||
1734 | int | |
1735 | Perl_magic_freearylen_p(pTHX_ SV *sv, MAGIC *mg) | |
1736 | { | |
53c1dcc0 | 1737 | PERL_UNUSED_ARG(sv); |
94f3782b DM |
1738 | /* during global destruction, mg_obj may already have been freed */ |
1739 | if (PL_in_clean_all) | |
1ea47f64 | 1740 | return 0; |
94f3782b | 1741 | |
83bf042f NC |
1742 | mg = mg_find (mg->mg_obj, PERL_MAGIC_arylen); |
1743 | ||
1744 | if (mg) { | |
1745 | /* arylen scalar holds a pointer back to the array, but doesn't own a | |
1746 | reference. Hence the we (the array) are about to go away with it | |
1747 | still pointing at us. Clear its pointer, else it would be pointing | |
1748 | at free memory. See the comment in sv_magic about reference loops, | |
1749 | and why it can't own a reference to us. */ | |
1750 | mg->mg_obj = 0; | |
1751 | } | |
a0d0e21e LW |
1752 | return 0; |
1753 | } | |
1754 | ||
1755 | int | |
864dbfa3 | 1756 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1757 | { |
8772537c | 1758 | SV* const lsv = LvTARG(sv); |
ac27b0f5 | 1759 | |
a0d0e21e | 1760 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1761 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1762 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1763 | I32 i = mg->mg_len; |
7e2040f0 | 1764 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1765 | sv_pos_b2u(lsv, &i); |
1766 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1767 | return 0; |
1768 | } | |
1769 | } | |
0c34ef67 | 1770 | SvOK_off(sv); |
a0d0e21e LW |
1771 | return 0; |
1772 | } | |
1773 | ||
1774 | int | |
864dbfa3 | 1775 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1776 | { |
8772537c | 1777 | SV* const lsv = LvTARG(sv); |
a0d0e21e LW |
1778 | SSize_t pos; |
1779 | STRLEN len; | |
c00206c8 | 1780 | STRLEN ulen = 0; |
a0d0e21e LW |
1781 | |
1782 | mg = 0; | |
ac27b0f5 | 1783 | |
a0d0e21e | 1784 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1785 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1786 | if (!mg) { |
1787 | if (!SvOK(sv)) | |
1788 | return 0; | |
14befaf4 DM |
1789 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1790 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1791 | } |
1792 | else if (!SvOK(sv)) { | |
565764a8 | 1793 | mg->mg_len = -1; |
a0d0e21e LW |
1794 | return 0; |
1795 | } | |
1796 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1797 | ||
c485e607 | 1798 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1799 | |
7e2040f0 | 1800 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1801 | ulen = sv_len_utf8(lsv); |
1802 | if (ulen) | |
1803 | len = ulen; | |
a0ed51b3 LW |
1804 | } |
1805 | ||
a0d0e21e LW |
1806 | if (pos < 0) { |
1807 | pos += len; | |
1808 | if (pos < 0) | |
1809 | pos = 0; | |
1810 | } | |
eb160463 | 1811 | else if (pos > (SSize_t)len) |
a0d0e21e | 1812 | pos = len; |
a0ed51b3 LW |
1813 | |
1814 | if (ulen) { | |
1815 | I32 p = pos; | |
1816 | sv_pos_u2b(lsv, &p, 0); | |
1817 | pos = p; | |
1818 | } | |
727405f8 | 1819 | |
565764a8 | 1820 | mg->mg_len = pos; |
71be2cbc | 1821 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1822 | |
79072805 LW |
1823 | return 0; |
1824 | } | |
1825 | ||
1826 | int | |
864dbfa3 | 1827 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1828 | { |
8772537c | 1829 | PERL_UNUSED_ARG(mg); |
8646b087 | 1830 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1831 | SvFAKE_off(sv); | |
946ec16e | 1832 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1833 | SvFAKE_on(sv); |
1834 | } | |
1835 | else | |
946ec16e | 1836 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1837 | return 0; |
1838 | } | |
1839 | ||
1840 | int | |
864dbfa3 | 1841 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1842 | { |
79072805 | 1843 | GV* gv; |
8772537c AL |
1844 | PERL_UNUSED_ARG(mg); |
1845 | ||
79072805 LW |
1846 | if (!SvOK(sv)) |
1847 | return 0; | |
7a5fd60d | 1848 | gv = gv_fetchsv(sv,TRUE, SVt_PVGV); |
79072805 LW |
1849 | if (sv == (SV*)gv) |
1850 | return 0; | |
1851 | if (GvGP(sv)) | |
88e89b8a | 1852 | gp_free((GV*)sv); |
79072805 | 1853 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1854 | return 0; |
1855 | } | |
1856 | ||
1857 | int | |
864dbfa3 | 1858 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1859 | { |
1860 | STRLEN len; | |
35a4481c | 1861 | SV * const lsv = LvTARG(sv); |
b83604b4 | 1862 | const char * const tmps = SvPV_const(lsv,len); |
6ff81951 GS |
1863 | I32 offs = LvTARGOFF(sv); |
1864 | I32 rem = LvTARGLEN(sv); | |
8772537c | 1865 | PERL_UNUSED_ARG(mg); |
6ff81951 | 1866 | |
9aa983d2 JH |
1867 | if (SvUTF8(lsv)) |
1868 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1869 | if (offs > (I32)len) |
6ff81951 | 1870 | offs = len; |
eb160463 | 1871 | if (rem + offs > (I32)len) |
6ff81951 GS |
1872 | rem = len - offs; |
1873 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1874 | if (SvUTF8(lsv)) |
2ef4b674 | 1875 | SvUTF8_on(sv); |
6ff81951 GS |
1876 | return 0; |
1877 | } | |
1878 | ||
1879 | int | |
864dbfa3 | 1880 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1881 | { |
9aa983d2 | 1882 | STRLEN len; |
b83604b4 | 1883 | const char *tmps = SvPV_const(sv, len); |
dd374669 | 1884 | SV * const lsv = LvTARG(sv); |
9aa983d2 JH |
1885 | I32 lvoff = LvTARGOFF(sv); |
1886 | I32 lvlen = LvTARGLEN(sv); | |
8772537c | 1887 | PERL_UNUSED_ARG(mg); |
075a4a2b | 1888 | |
1aa99e6b | 1889 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1890 | sv_utf8_upgrade(lsv); |
1891 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1892 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
b76f3ce2 | 1893 | LvTARGLEN(sv) = sv_len_utf8(sv); |
9aa983d2 JH |
1894 | SvUTF8_on(lsv); |
1895 | } | |
9bf12eaf | 1896 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1897 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
b76f3ce2 | 1898 | LvTARGLEN(sv) = len; |
e95af362 | 1899 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1900 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1901 | Safefree(tmps); | |
1aa99e6b | 1902 | } |
b76f3ce2 GB |
1903 | else { |
1904 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1905 | LvTARGLEN(sv) = len; | |
1906 | } | |
1907 | ||
1aa99e6b | 1908 | |
79072805 LW |
1909 | return 0; |
1910 | } | |
1911 | ||
1912 | int | |
864dbfa3 | 1913 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1914 | { |
8772537c | 1915 | PERL_UNUSED_ARG(sv); |
2ddb8a4f | 1916 | TAINT_IF(mg->mg_len & 1); |
463ee0b2 LW |
1917 | return 0; |
1918 | } | |
1919 | ||
1920 | int | |
864dbfa3 | 1921 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1922 | { |
8772537c | 1923 | PERL_UNUSED_ARG(sv); |
2ddb8a4f | 1924 | if (PL_tainted) |
565764a8 | 1925 | mg->mg_len |= 1; |
748a9306 | 1926 | else |
565764a8 | 1927 | mg->mg_len &= ~1; |
463ee0b2 LW |
1928 | return 0; |
1929 | } | |
1930 | ||
1931 | int | |
864dbfa3 | 1932 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1933 | { |
35a4481c | 1934 | SV * const lsv = LvTARG(sv); |
8772537c | 1935 | PERL_UNUSED_ARG(mg); |
6ff81951 GS |
1936 | |
1937 | if (!lsv) { | |
0c34ef67 | 1938 | SvOK_off(sv); |
6ff81951 GS |
1939 | return 0; |
1940 | } | |
6ff81951 | 1941 | |
81e118e0 | 1942 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1943 | return 0; |
1944 | } | |
1945 | ||
1946 | int | |
864dbfa3 | 1947 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1948 | { |
8772537c | 1949 | PERL_UNUSED_ARG(mg); |
79072805 LW |
1950 | do_vecset(sv); /* XXX slurp this routine */ |
1951 | return 0; | |
1952 | } | |
1953 | ||
1954 | int | |
864dbfa3 | 1955 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1956 | { |
71be2cbc | 1957 | SV *targ = Nullsv; |
5f05dabc | 1958 | if (LvTARGLEN(sv)) { |
68dc0745 | 1959 | if (mg->mg_obj) { |
8772537c AL |
1960 | SV * const ahv = LvTARG(sv); |
1961 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
6d822dc4 MS |
1962 | if (he) |
1963 | targ = HeVAL(he); | |
68dc0745 | 1964 | } |
1965 | else { | |
8772537c | 1966 | AV* const av = (AV*)LvTARG(sv); |
68dc0745 | 1967 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1968 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1969 | } | |
3280af22 | 1970 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1971 | /* somebody else defined it for us */ |
1972 | SvREFCNT_dec(LvTARG(sv)); | |
1973 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1974 | LvTARGLEN(sv) = 0; | |
1975 | SvREFCNT_dec(mg->mg_obj); | |
1976 | mg->mg_obj = Nullsv; | |
1977 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1978 | } | |
5f05dabc | 1979 | } |
71be2cbc | 1980 | else |
1981 | targ = LvTARG(sv); | |
3280af22 | 1982 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1983 | return 0; |
1984 | } | |
1985 | ||
1986 | int | |
864dbfa3 | 1987 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1988 | { |
8772537c | 1989 | PERL_UNUSED_ARG(mg); |
71be2cbc | 1990 | if (LvTARGLEN(sv)) |
68dc0745 | 1991 | vivify_defelem(sv); |
1992 | if (LvTARG(sv)) { | |
5f05dabc | 1993 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1994 | SvSETMAGIC(LvTARG(sv)); |
1995 | } | |
5f05dabc | 1996 | return 0; |
1997 | } | |
1998 | ||
71be2cbc | 1999 | void |
864dbfa3 | 2000 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 2001 | { |
74e13ce4 GS |
2002 | MAGIC *mg; |
2003 | SV *value = Nullsv; | |
71be2cbc | 2004 | |
14befaf4 | 2005 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 2006 | return; |
68dc0745 | 2007 | if (mg->mg_obj) { |
8772537c AL |
2008 | SV * const ahv = LvTARG(sv); |
2009 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); | |
6d822dc4 MS |
2010 | if (he) |
2011 | value = HeVAL(he); | |
3280af22 | 2012 | if (!value || value == &PL_sv_undef) |
ce5030a2 | 2013 | Perl_croak(aTHX_ PL_no_helem_sv, mg->mg_obj); |
71be2cbc | 2014 | } |
68dc0745 | 2015 | else { |
8772537c | 2016 | AV* const av = (AV*)LvTARG(sv); |
5aabfad6 | 2017 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 2018 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
2019 | else { | |
2020 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 2021 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 2022 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 2023 | } |
2024 | } | |
3e3baf6d | 2025 | (void)SvREFCNT_inc(value); |
68dc0745 | 2026 | SvREFCNT_dec(LvTARG(sv)); |
2027 | LvTARG(sv) = value; | |
71be2cbc | 2028 | LvTARGLEN(sv) = 0; |
68dc0745 | 2029 | SvREFCNT_dec(mg->mg_obj); |
2030 | mg->mg_obj = Nullsv; | |
2031 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 2032 | } |
2033 | ||
2034 | int | |
864dbfa3 | 2035 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 | 2036 | { |
e15faf7d NC |
2037 | AV *const av = (AV*)mg->mg_obj; |
2038 | SV **svp = AvARRAY(av); | |
8772537c | 2039 | PERL_UNUSED_ARG(sv); |
dd374669 | 2040 | |
e15faf7d NC |
2041 | if (svp) { |
2042 | SV *const *const last = svp + AvFILLp(av); | |
2043 | ||
2044 | while (svp <= last) { | |
2045 | if (*svp) { | |
2046 | SV *const referrer = *svp; | |
2047 | if (SvWEAKREF(referrer)) { | |
2048 | /* XXX Should we check that it hasn't changed? */ | |
2049 | SvRV_set(referrer, 0); | |
2050 | SvOK_off(referrer); | |
2051 | SvWEAKREF_off(referrer); | |
2052 | } else if (SvTYPE(referrer) == SVt_PVGV || | |
2053 | SvTYPE(referrer) == SVt_PVLV) { | |
2054 | /* You lookin' at me? */ | |
2055 | assert(GvSTASH(referrer)); | |
2056 | assert(GvSTASH(referrer) == (HV*)sv); | |
2057 | GvSTASH(referrer) = 0; | |
2058 | } else { | |
2059 | Perl_croak(aTHX_ | |
2060 | "panic: magic_killbackrefs (flags=%"UVxf")", | |
2061 | SvFLAGS(referrer)); | |
2062 | } | |
2063 | ||
2064 | *svp = Nullsv; | |
2065 | } | |
2066 | svp++; | |
810b8aa5 | 2067 | } |
810b8aa5 | 2068 | } |
d99b02a1 | 2069 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
2070 | return 0; |
2071 | } | |
2072 | ||
2073 | int | |
864dbfa3 | 2074 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 2075 | { |
565764a8 | 2076 | mg->mg_len = -1; |
c6496cc7 | 2077 | SvSCREAM_off(sv); |
93a17b20 LW |
2078 | return 0; |
2079 | } | |
2080 | ||
2081 | int | |
864dbfa3 | 2082 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2083 | { |
8772537c | 2084 | PERL_UNUSED_ARG(mg); |
14befaf4 | 2085 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
2086 | SvVALID_off(sv); |
2087 | return 0; | |
2088 | } | |
2089 | ||
2090 | int | |
864dbfa3 | 2091 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 2092 | { |
8772537c | 2093 | PERL_UNUSED_ARG(mg); |
14befaf4 | 2094 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 2095 | SvCOMPILED_off(sv); |
2096 | return 0; | |
2097 | } | |
2098 | ||
2099 | int | |
864dbfa3 | 2100 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2101 | { |
35a4481c | 2102 | const struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
2103 | |
2104 | if (uf && uf->uf_set) | |
24f81a43 | 2105 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
2106 | return 0; |
2107 | } | |
2108 | ||
c277df42 | 2109 | int |
faf82a0b AE |
2110 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
2111 | { | |
8772537c | 2112 | PERL_UNUSED_ARG(mg); |
faf82a0b AE |
2113 | sv_unmagic(sv, PERL_MAGIC_qr); |
2114 | return 0; | |
2115 | } | |
2116 | ||
2117 | int | |
864dbfa3 | 2118 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 | 2119 | { |
8772537c AL |
2120 | regexp * const re = (regexp *)mg->mg_obj; |
2121 | PERL_UNUSED_ARG(sv); | |
2122 | ||
c277df42 IZ |
2123 | ReREFCNT_dec(re); |
2124 | return 0; | |
2125 | } | |
2126 | ||
7a4c00b4 | 2127 | #ifdef USE_LOCALE_COLLATE |
79072805 | 2128 | int |
864dbfa3 | 2129 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 2130 | { |
2131 | /* | |
838b5b74 | 2132 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 2133 | * and vanished with a faint plop. |
2134 | */ | |
8772537c | 2135 | PERL_UNUSED_ARG(sv); |
7a4c00b4 | 2136 | if (mg->mg_ptr) { |
2137 | Safefree(mg->mg_ptr); | |
2138 | mg->mg_ptr = NULL; | |
565764a8 | 2139 | mg->mg_len = -1; |
7a4c00b4 | 2140 | } |
bbce6d69 | 2141 | return 0; |
2142 | } | |
7a4c00b4 | 2143 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 2144 | |
7e8c5dac HS |
2145 | /* Just clear the UTF-8 cache data. */ |
2146 | int | |
2147 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
2148 | { | |
8772537c | 2149 | PERL_UNUSED_ARG(sv); |
7e8c5dac HS |
2150 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
2151 | mg->mg_ptr = 0; | |
2152 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
2153 | return 0; | |
2154 | } | |
2155 | ||
bbce6d69 | 2156 | int |
864dbfa3 | 2157 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2158 | { |
e1ec3a88 | 2159 | register const char *s; |
79072805 | 2160 | I32 i; |
8990e307 | 2161 | STRLEN len; |
79072805 | 2162 | switch (*mg->mg_ptr) { |
748a9306 | 2163 | case '\001': /* ^A */ |
3280af22 | 2164 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 2165 | break; |
49460fe6 | 2166 | case '\003': /* ^C */ |
eb160463 | 2167 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
2168 | break; |
2169 | ||
79072805 | 2170 | case '\004': /* ^D */ |
b4ab917c | 2171 | #ifdef DEBUGGING |
b83604b4 | 2172 | s = SvPV_nolen_const(sv); |
ddcf8bc1 | 2173 | PL_debug = get_debug_opts(&s, 0) | DEBUG_TOP_FLAG; |
79072805 | 2174 | DEBUG_x(dump_all()); |
b4ab917c DM |
2175 | #else |
2176 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
2177 | #endif | |
79072805 | 2178 | break; |
28f23441 | 2179 | case '\005': /* ^E */ |
d0063567 | 2180 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2181 | #ifdef MACOS_TRADITIONAL |
d0063567 | 2182 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2183 | #else |
cd39f2b6 | 2184 | # ifdef VMS |
d0063567 | 2185 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2186 | # else |
cd39f2b6 | 2187 | # ifdef WIN32 |
d0063567 | 2188 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2189 | # else |
9fed8b87 | 2190 | # ifdef OS2 |
d0063567 | 2191 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2192 | # else |
d0063567 DK |
2193 | /* will anyone ever use this? */ |
2194 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2195 | # endif |
048c1ddf IZ |
2196 | # endif |
2197 | # endif | |
22fae026 | 2198 | #endif |
d0063567 DK |
2199 | } |
2200 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2201 | if (PL_encoding) | |
2202 | SvREFCNT_dec(PL_encoding); | |
2203 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2204 | PL_encoding = newSVsv(sv); | |
2205 | } | |
2206 | else { | |
2207 | PL_encoding = Nullsv; | |
2208 | } | |
2209 | } | |
2210 | break; | |
79072805 | 2211 | case '\006': /* ^F */ |
3280af22 | 2212 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2213 | break; |
a0d0e21e | 2214 | case '\010': /* ^H */ |
3280af22 | 2215 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2216 | break; |
9d116dd7 | 2217 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
43c5f42d NC |
2218 | Safefree(PL_inplace); |
2219 | PL_inplace = SvOK(sv) ? savesvpv(sv) : Nullch; | |
28f23441 | 2220 | case '\017': /* ^O */ |
ac27b0f5 | 2221 | if (*(mg->mg_ptr+1) == '\0') { |
43c5f42d NC |
2222 | Safefree(PL_osname); |
2223 | PL_osname = Nullch; | |
3511154c DM |
2224 | if (SvOK(sv)) { |
2225 | TAINT_PROPER("assigning to $^O"); | |
2e0de35c | 2226 | PL_osname = savesvpv(sv); |
3511154c | 2227 | } |
ac27b0f5 NIS |
2228 | } |
2229 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2230 | if (!PL_compiling.cop_io) | |
2231 | PL_compiling.cop_io = newSVsv(sv); | |
2232 | else | |
2233 | sv_setsv(PL_compiling.cop_io,sv); | |
2234 | } | |
28f23441 | 2235 | break; |
79072805 | 2236 | case '\020': /* ^P */ |
3280af22 | 2237 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
f2a7f298 | 2238 | if (PL_perldb && !PL_DBsingle) |
1ee4443e | 2239 | init_debugger(); |
79072805 LW |
2240 | break; |
2241 | case '\024': /* ^T */ | |
88e89b8a | 2242 | #ifdef BIG_TIME |
6b88bc9c | 2243 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2244 | #else |
3280af22 | 2245 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2246 | #endif |
79072805 | 2247 | break; |
fde18df1 | 2248 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2249 | if (*(mg->mg_ptr+1) == '\0') { |
2250 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2251 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2252 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2253 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2254 | } |
599cee73 | 2255 | } |
0a378802 | 2256 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2257 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2258 | if (!SvPOK(sv) && PL_localizing) { |
2259 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2260 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2261 | break; |
2262 | } | |
f4fc7782 | 2263 | { |
b5477537 | 2264 | STRLEN len, i; |
d3a7d8c7 | 2265 | int accumulate = 0 ; |
f4fc7782 | 2266 | int any_fatals = 0 ; |
b83604b4 | 2267 | const char * const ptr = SvPV_const(sv, len) ; |
f4fc7782 JH |
2268 | for (i = 0 ; i < len ; ++i) { |
2269 | accumulate |= ptr[i] ; | |
2270 | any_fatals |= (ptr[i] & 0xAA) ; | |
2271 | } | |
d3a7d8c7 GS |
2272 | if (!accumulate) |
2273 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2274 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2275 | PL_compiling.cop_warnings = pWARN_ALL; | |
2276 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2277 | } |
d3a7d8c7 GS |
2278 | else { |
2279 | if (specialWARN(PL_compiling.cop_warnings)) | |
2280 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2281 | else | |
2282 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2283 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2284 | PL_dowarn |= G_WARN_ONCE ; | |
2285 | } | |
f4fc7782 | 2286 | |
d3a7d8c7 | 2287 | } |
4438c4b7 | 2288 | } |
971a9dd3 | 2289 | } |
79072805 LW |
2290 | break; |
2291 | case '.': | |
3280af22 NIS |
2292 | if (PL_localizing) { |
2293 | if (PL_localizing == 1) | |
7766f137 | 2294 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2295 | } |
3280af22 | 2296 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2297 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2298 | break; |
2299 | case '^': | |
3280af22 | 2300 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2301 | s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
7a5fd60d | 2302 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv,TRUE, SVt_PVIO); |
79072805 LW |
2303 | break; |
2304 | case '~': | |
3280af22 | 2305 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2306 | s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
7a5fd60d | 2307 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv,TRUE, SVt_PVIO); |
79072805 LW |
2308 | break; |
2309 | case '=': | |
632db599 | 2310 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2311 | break; |
2312 | case '-': | |
632db599 | 2313 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2314 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2315 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2316 | break; |
2317 | case '%': | |
632db599 | 2318 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2319 | break; |
2320 | case '|': | |
4b65379b | 2321 | { |
8772537c | 2322 | IO * const io = GvIOp(PL_defoutgv); |
720f287d AB |
2323 | if(!io) |
2324 | break; | |
4b65379b CS |
2325 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2326 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2327 | else { | |
2328 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2329 | PerlIO *ofp = IoOFP(io); | |
2330 | if (ofp) | |
2331 | (void)PerlIO_flush(ofp); | |
2332 | IoFLAGS(io) |= IOf_FLUSH; | |
2333 | } | |
2334 | } | |
79072805 LW |
2335 | } |
2336 | break; | |
79072805 | 2337 | case '/': |
3280af22 | 2338 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2339 | PL_rs = newSVsv(sv); |
79072805 LW |
2340 | break; |
2341 | case '\\': | |
7889fe52 NIS |
2342 | if (PL_ors_sv) |
2343 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2344 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2345 | PL_ors_sv = newSVsv(sv); |
009c130f | 2346 | } |
e3c19b7b | 2347 | else { |
7889fe52 | 2348 | PL_ors_sv = Nullsv; |
e3c19b7b | 2349 | } |
79072805 LW |
2350 | break; |
2351 | case ',': | |
7889fe52 NIS |
2352 | if (PL_ofs_sv) |
2353 | SvREFCNT_dec(PL_ofs_sv); | |
2354 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2355 | PL_ofs_sv = newSVsv(sv); | |
2356 | } | |
2357 | else { | |
2358 | PL_ofs_sv = Nullsv; | |
2359 | } | |
79072805 | 2360 | break; |
79072805 | 2361 | case '[': |
3280af22 | 2362 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2363 | break; |
2364 | case '?': | |
ff0cee69 | 2365 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2366 | if (PL_localizing == 2) { |
2367 | PL_statusvalue = LvTARGOFF(sv); | |
2368 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2369 | } |
2370 | else | |
2371 | #endif | |
2372 | #ifdef VMSISH_STATUS | |
2373 | if (VMSISH_STATUS) | |
2374 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2375 | else | |
2376 | #endif | |
e5218da5 | 2377 | STATUS_UNIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2378 | break; |
2379 | case '!': | |
93189314 JH |
2380 | { |
2381 | #ifdef VMS | |
2382 | # define PERL_VMS_BANG vaxc$errno | |
2383 | #else | |
2384 | # define PERL_VMS_BANG 0 | |
2385 | #endif | |
91487cfc | 2386 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2387 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2388 | } | |
79072805 LW |
2389 | break; |
2390 | case '<': | |
3280af22 NIS |
2391 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2392 | if (PL_delaymagic) { | |
2393 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2394 | break; /* don't do magic till later */ |
2395 | } | |
2396 | #ifdef HAS_SETRUID | |
b28d0864 | 2397 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2398 | #else |
2399 | #ifdef HAS_SETREUID | |
3280af22 | 2400 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2401 | #else |
85e6fe83 | 2402 | #ifdef HAS_SETRESUID |
b28d0864 | 2403 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2404 | #else |
75870ed3 | 2405 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2406 | #ifdef PERL_DARWIN | |
2407 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2408 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2409 | (void)PerlProc_setuid(0); | |
2410 | #endif | |
b28d0864 | 2411 | (void)PerlProc_setuid(PL_uid); |
75870ed3 | 2412 | } else { |
d8eceb89 | 2413 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2414 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2415 | } |
79072805 LW |
2416 | #endif |
2417 | #endif | |
85e6fe83 | 2418 | #endif |
d8eceb89 | 2419 | PL_uid = PerlProc_getuid(); |
3280af22 | 2420 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2421 | break; |
2422 | case '>': | |
3280af22 NIS |
2423 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2424 | if (PL_delaymagic) { | |
2425 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2426 | break; /* don't do magic till later */ |
2427 | } | |
2428 | #ifdef HAS_SETEUID | |
3280af22 | 2429 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2430 | #else |
2431 | #ifdef HAS_SETREUID | |
b28d0864 | 2432 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2433 | #else |
2434 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2435 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2436 | #else |
b28d0864 NIS |
2437 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2438 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2439 | else { |
e8ee3774 | 2440 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2441 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2442 | } |
79072805 LW |
2443 | #endif |
2444 | #endif | |
85e6fe83 | 2445 | #endif |
d8eceb89 | 2446 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2447 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2448 | break; |
2449 | case '(': | |
3280af22 NIS |
2450 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2451 | if (PL_delaymagic) { | |
2452 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2453 | break; /* don't do magic till later */ |
2454 | } | |
2455 | #ifdef HAS_SETRGID | |
b28d0864 | 2456 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2457 | #else |
2458 | #ifdef HAS_SETREGID | |
3280af22 | 2459 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2460 | #else |
2461 | #ifdef HAS_SETRESGID | |
b28d0864 | 2462 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2463 | #else |
b28d0864 NIS |
2464 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2465 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2466 | else { |
d8eceb89 | 2467 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2468 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2469 | } |
79072805 LW |
2470 | #endif |
2471 | #endif | |
85e6fe83 | 2472 | #endif |
d8eceb89 | 2473 | PL_gid = PerlProc_getgid(); |
3280af22 | 2474 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2475 | break; |
2476 | case ')': | |
5cd24f17 | 2477 | #ifdef HAS_SETGROUPS |
2478 | { | |
b83604b4 | 2479 | const char *p = SvPV_const(sv, len); |
5cd24f17 | 2480 | Groups_t gary[NGROUPS]; |
2481 | ||
5cd24f17 | 2482 | while (isSPACE(*p)) |
2483 | ++p; | |
2d4389e4 | 2484 | PL_egid = Atol(p); |
5cd24f17 | 2485 | for (i = 0; i < NGROUPS; ++i) { |
2486 | while (*p && !isSPACE(*p)) | |
2487 | ++p; | |
2488 | while (isSPACE(*p)) | |
2489 | ++p; | |
2490 | if (!*p) | |
2491 | break; | |
2d4389e4 | 2492 | gary[i] = Atol(p); |
5cd24f17 | 2493 | } |
8cc95fdb | 2494 | if (i) |
2495 | (void)setgroups(i, gary); | |
5cd24f17 | 2496 | } |
2497 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2498 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2499 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2500 | if (PL_delaymagic) { |
2501 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2502 | break; /* don't do magic till later */ |
2503 | } | |
2504 | #ifdef HAS_SETEGID | |
3280af22 | 2505 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2506 | #else |
2507 | #ifdef HAS_SETREGID | |
b28d0864 | 2508 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2509 | #else |
2510 | #ifdef HAS_SETRESGID | |
b28d0864 | 2511 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2512 | #else |
b28d0864 NIS |
2513 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2514 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2515 | else { |
d8eceb89 | 2516 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2517 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2518 | } |
79072805 LW |
2519 | #endif |
2520 | #endif | |
85e6fe83 | 2521 | #endif |
d8eceb89 | 2522 | PL_egid = PerlProc_getegid(); |
3280af22 | 2523 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2524 | break; |
2525 | case ':': | |
2d8e6c8d | 2526 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2527 | break; |
cd39f2b6 | 2528 | #ifndef MACOS_TRADITIONAL |
79072805 | 2529 | case '0': |
e2975953 | 2530 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2531 | #ifdef HAS_SETPROCTITLE |
2532 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2533 | * show a string from the process struct and provide | |
2534 | * the setproctitle() routine to manipulate that. */ | |
2535 | { | |
b83604b4 | 2536 | s = SvPV_const(sv, len); |
98b76f99 | 2537 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2538 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2539 | * but not the "(perl) suffix from the ps(1) |
2540 | * output, because that's what ps(1) shows if the | |
2541 | * argv[] is modified. */ | |
6f2ad931 | 2542 | setproctitle("-%s", s); |
9aad2c0e | 2543 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2544 | /* This doesn't really work if you assume that |
2545 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2546 | * because in ps(1) output the result will be like | |
2547 | * sprintf("perl: %s (perl)", s) | |
2548 | * I guess this is a security feature: | |
2549 | * one (a user process) cannot get rid of the original name. | |
2550 | * --jhi */ | |
2551 | setproctitle("%s", s); | |
2552 | # endif | |
2553 | } | |
2554 | #endif | |
17aa7f3d JH |
2555 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2556 | { | |
2557 | union pstun un; | |
b83604b4 | 2558 | s = SvPV_const(sv, len); |
6867be6d | 2559 | un.pst_command = (char *)s; |
17aa7f3d JH |
2560 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2561 | } | |
2562 | #endif | |
3cb9023d | 2563 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2564 | s = SvPV_force(sv,len); |
6f698202 AMS |
2565 | if (len >= (STRLEN)PL_origalen-1) { |
2566 | /* Longer than original, will be truncated. We assume that | |
2567 | * PL_origalen bytes are available. */ | |
2568 | Copy(s, PL_origargv[0], PL_origalen-1, char); | |
79072805 LW |
2569 | } |
2570 | else { | |
54bfe034 JH |
2571 | /* Shorter than original, will be padded. */ |
2572 | Copy(s, PL_origargv[0], len, char); | |
2573 | PL_origargv[0][len] = 0; | |
2574 | memset(PL_origargv[0] + len + 1, | |
2575 | /* Is the space counterintuitive? Yes. | |
2576 | * (You were expecting \0?) | |
3cb9023d | 2577 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 JH |
2578 | * --jhi */ |
2579 | (int)' ', | |
2580 | PL_origalen - len - 1); | |
79072805 | 2581 | } |
ad7eccf4 JD |
2582 | PL_origargv[0][PL_origalen-1] = 0; |
2583 | for (i = 1; i < PL_origargc; i++) | |
2584 | PL_origargv[i] = 0; | |
e2975953 | 2585 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2586 | break; |
cd39f2b6 | 2587 | #endif |
79072805 LW |
2588 | } |
2589 | return 0; | |
2590 | } | |
2591 | ||
2592 | I32 | |
35a4481c | 2593 | Perl_whichsig(pTHX_ const char *sig) |
79072805 | 2594 | { |
aadb217d | 2595 | register char* const* sigv; |
79072805 | 2596 | |
aadb217d | 2597 | for (sigv = (char* const*)PL_sig_name; *sigv; sigv++) |
79072805 | 2598 | if (strEQ(sig,*sigv)) |
aadb217d | 2599 | return PL_sig_num[sigv - (char* const*)PL_sig_name]; |
79072805 LW |
2600 | #ifdef SIGCLD |
2601 | if (strEQ(sig,"CHLD")) | |
2602 | return SIGCLD; | |
2603 | #endif | |
2604 | #ifdef SIGCHLD | |
2605 | if (strEQ(sig,"CLD")) | |
2606 | return SIGCHLD; | |
2607 | #endif | |
7f1236c0 | 2608 | return -1; |
79072805 LW |
2609 | } |
2610 | ||
ecfc5424 | 2611 | Signal_t |
cea2e8a9 | 2612 | Perl_sighandler(int sig) |
79072805 | 2613 | { |
1018e26f NIS |
2614 | #ifdef PERL_GET_SIG_CONTEXT |
2615 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2616 | #else |
cea2e8a9 | 2617 | dTHX; |
71d280e3 | 2618 | #endif |
79072805 | 2619 | dSP; |
00d579c5 | 2620 | GV *gv = Nullgv; |
8772537c AL |
2621 | SV *sv = Nullsv; |
2622 | SV * const tSv = PL_Sv; | |
00d579c5 | 2623 | CV *cv = Nullcv; |
533c011a | 2624 | OP *myop = PL_op; |
84902520 | 2625 | U32 flags = 0; |
8772537c | 2626 | XPV * const tXpv = PL_Xpv; |
71d280e3 | 2627 | |
3280af22 | 2628 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2629 | flags |= 1; |
3280af22 | 2630 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2631 | flags |= 4; |
3280af22 | 2632 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2633 | flags |= 16; |
2634 | ||
727405f8 | 2635 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2636 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2637 | PL_sig_name[sig]); |
2638 | exit(sig); | |
2639 | } | |
ff0cee69 | 2640 | |
84902520 TB |
2641 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2642 | infinity, so we fix 4 (in fact 5): */ | |
2643 | if (flags & 1) { | |
3280af22 | 2644 | PL_savestack_ix += 5; /* Protect save in progress. */ |
8772537c | 2645 | SAVEDESTRUCTOR_X(S_unwind_handler_stack, (void*)&flags); |
84902520 | 2646 | } |
ac27b0f5 | 2647 | if (flags & 4) |
3280af22 | 2648 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2649 | if (flags & 16) |
3280af22 | 2650 | PL_scopestack_ix += 1; |
84902520 | 2651 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2652 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
8772537c AL |
2653 | || SvTYPE(cv) != SVt_PVCV) { |
2654 | HV *st; | |
22c35a8c | 2655 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
8772537c | 2656 | } |
84902520 | 2657 | |
a0d0e21e | 2658 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2659 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2660 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2661 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2662 | : ((cv && CvGV(cv)) |
2663 | ? GvENAME(CvGV(cv)) | |
2664 | : "__ANON__"))); | |
2665 | goto cleanup; | |
79072805 LW |
2666 | } |
2667 | ||
22c35a8c GS |
2668 | if(PL_psig_name[sig]) { |
2669 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2670 | flags |= 64; |
df3728a2 | 2671 | #if !defined(PERL_IMPLICIT_CONTEXT) |
27da23d5 | 2672 | PL_sig_sv = sv; |
df3728a2 | 2673 | #endif |
84902520 | 2674 | } else { |
ff0cee69 | 2675 | sv = sv_newmortal(); |
22c35a8c | 2676 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2677 | } |
e336de0d | 2678 | |
e788e7d3 | 2679 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2680 | PUSHMARK(SP); |
79072805 | 2681 | PUSHs(sv); |
79072805 | 2682 | PUTBACK; |
a0d0e21e | 2683 | |
1b266415 | 2684 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2685 | |
d3acc0f7 | 2686 | POPSTACK; |
1b266415 | 2687 | if (SvTRUE(ERRSV)) { |
1d615522 | 2688 | #ifndef PERL_MICRO |
983dbef6 | 2689 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2690 | /* Handler "died", for example to get out of a restart-able read(). |
2691 | * Before we re-do that on its behalf re-enable the signal which was | |
2692 | * blocked by the system when we entered. | |
2693 | */ | |
2694 | sigset_t set; | |
2695 | sigemptyset(&set); | |
2696 | sigaddset(&set,sig); | |
2697 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2698 | #else | |
2699 | /* Not clear if this will work */ | |
2700 | (void)rsignal(sig, SIG_IGN); | |
5c1546dc | 2701 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2702 | #endif |
1d615522 | 2703 | #endif /* !PERL_MICRO */ |
5df617be | 2704 | DieNull; |
1b266415 | 2705 | } |
00d579c5 | 2706 | cleanup: |
84902520 | 2707 | if (flags & 1) |
3280af22 | 2708 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2709 | if (flags & 4) |
3280af22 | 2710 | PL_markstack_ptr--; |
84902520 | 2711 | if (flags & 16) |
3280af22 | 2712 | PL_scopestack_ix -= 1; |
84902520 TB |
2713 | if (flags & 64) |
2714 | SvREFCNT_dec(sv); | |
533c011a | 2715 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2716 | |
3280af22 NIS |
2717 | PL_Sv = tSv; /* Restore global temporaries. */ |
2718 | PL_Xpv = tXpv; | |
53bb94e2 | 2719 | return; |
79072805 | 2720 | } |
4e35701f NIS |
2721 | |
2722 | ||
51371543 | 2723 | static void |
8772537c | 2724 | S_restore_magic(pTHX_ const void *p) |
51371543 | 2725 | { |
8772537c AL |
2726 | MGS* const mgs = SSPTR(PTR2IV(p), MGS*); |
2727 | SV* const sv = mgs->mgs_sv; | |
51371543 GS |
2728 | |
2729 | if (!sv) | |
2730 | return; | |
2731 | ||
2732 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2733 | { | |
f8c7b90f | 2734 | #ifdef PERL_OLD_COPY_ON_WRITE |
f9701176 NC |
2735 | /* While magic was saved (and off) sv_setsv may well have seen |
2736 | this SV as a prime candidate for COW. */ | |
2737 | if (SvIsCOW(sv)) | |
2738 | sv_force_normal(sv); | |
2739 | #endif | |
2740 | ||
51371543 GS |
2741 | if (mgs->mgs_flags) |
2742 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2743 | else | |
2744 | mg_magical(sv); | |
2745 | if (SvGMAGICAL(sv)) | |
2746 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2747 | } | |
2748 | ||
2749 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2750 | ||
2751 | /* If we're still on top of the stack, pop us off. (That condition | |
2752 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2753 | * if it's being called via leave_scope.) | |
2754 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2755 | * may leave alloc gunk on the savestack, and some code | |
2756 | * (e.g. sighandler) doesn't expect that... | |
2757 | */ | |
2758 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2759 | { | |
2760 | I32 popval = SSPOPINT; | |
c76ac1ee | 2761 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2762 | PL_savestack_ix -= 2; |
2763 | popval = SSPOPINT; | |
2764 | assert(popval == SAVEt_ALLOC); | |
2765 | popval = SSPOPINT; | |
2766 | PL_savestack_ix -= popval; | |
2767 | } | |
2768 | ||
2769 | } | |
2770 | ||
2771 | static void | |
8772537c | 2772 | S_unwind_handler_stack(pTHX_ const void *p) |
51371543 | 2773 | { |
27da23d5 | 2774 | dVAR; |
e1ec3a88 | 2775 | const U32 flags = *(const U32*)p; |
51371543 GS |
2776 | |
2777 | if (flags & 1) | |
2778 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2779 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2780 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 | 2781 | if (flags & 64) |
27da23d5 | 2782 | SvREFCNT_dec(PL_sig_sv); |
df3728a2 | 2783 | #endif |
51371543 | 2784 | } |
1018e26f | 2785 | |
66610fdd RGS |
2786 | /* |
2787 | * Local variables: | |
2788 | * c-indentation-style: bsd | |
2789 | * c-basic-offset: 4 | |
2790 | * indent-tabs-mode: t | |
2791 | * End: | |
2792 | * | |
37442d52 RGS |
2793 | * ex: set ts=8 sts=4 sw=4 noet: |
2794 | */ |