Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
b94e2f88 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others |
79072805 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) |
b7953727 JH |
43 | # ifdef I_GRP |
44 | # include <grp.h> | |
45 | # endif | |
188ea221 CS |
46 | #endif |
47 | ||
757f63d8 SP |
48 | #if defined(HAS_SETGROUPS) |
49 | # ifndef NGROUPS | |
50 | # define NGROUPS 32 | |
51 | # endif | |
52 | #endif | |
53 | ||
17aa7f3d JH |
54 | #ifdef __hpux |
55 | # include <sys/pstat.h> | |
56 | #endif | |
57 | ||
8aad04aa JH |
58 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
59 | Signal_t Perl_csighandler(int sig, ...); | |
60 | #else | |
e69880a5 | 61 | Signal_t Perl_csighandler(int sig); |
8aad04aa | 62 | #endif |
e69880a5 | 63 | |
9cffb111 OS |
64 | #ifdef __Lynx__ |
65 | /* Missing protos on LynxOS */ | |
66 | void setruid(uid_t id); | |
67 | void seteuid(uid_t id); | |
68 | void setrgid(uid_t id); | |
69 | void setegid(uid_t id); | |
70 | #endif | |
71 | ||
c07a80fd | 72 | /* |
73 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
74 | */ | |
75 | ||
76 | struct magic_state { | |
77 | SV* mgs_sv; | |
78 | U32 mgs_flags; | |
455ece5e | 79 | I32 mgs_ss_ix; |
c07a80fd | 80 | }; |
455ece5e | 81 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
82 | |
83 | STATIC void | |
8fb26106 | 84 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 85 | { |
455ece5e | 86 | MGS* mgs; |
c07a80fd | 87 | assert(SvMAGICAL(sv)); |
f8c7b90f | 88 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d NC |
89 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ |
90 | if (SvIsCOW(sv)) | |
9a265e59 | 91 | sv_force_normal_flags(sv, 0); |
765f542d | 92 | #endif |
c07a80fd | 93 | |
8772537c | 94 | SAVEDESTRUCTOR_X(S_restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
95 | |
96 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 97 | mgs->mgs_sv = sv; |
98 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 99 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 100 | |
101 | SvMAGICAL_off(sv); | |
102 | SvREADONLY_off(sv); | |
06759ea0 | 103 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 104 | } |
105 | ||
954c1994 GS |
106 | /* |
107 | =for apidoc mg_magical | |
108 | ||
109 | Turns on the magical status of an SV. See C<sv_magic>. | |
110 | ||
111 | =cut | |
112 | */ | |
113 | ||
8990e307 | 114 | void |
864dbfa3 | 115 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 | 116 | { |
e1ec3a88 | 117 | const MAGIC* mg; |
8990e307 | 118 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 119 | const MGVTBL* const vtbl = mg->mg_virtual; |
8990e307 | 120 | if (vtbl) { |
2b260de0 | 121 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
122 | SvGMAGICAL_on(sv); |
123 | if (vtbl->svt_set) | |
124 | SvSMAGICAL_on(sv); | |
2b260de0 | 125 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
126 | SvRMAGICAL_on(sv); |
127 | } | |
128 | } | |
129 | } | |
130 | ||
954c1994 GS |
131 | /* |
132 | =for apidoc mg_get | |
133 | ||
134 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
135 | ||
136 | =cut | |
137 | */ | |
138 | ||
79072805 | 139 | int |
864dbfa3 | 140 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 141 | { |
35a4481c | 142 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
fe2774ed | 143 | const bool was_temp = (bool)SvTEMP(sv); |
0723351e | 144 | int have_new = 0; |
ff76feab | 145 | MAGIC *newmg, *head, *cur, *mg; |
20135930 | 146 | /* guard against sv having being freed midway by holding a private |
6683b158 NC |
147 | reference. */ |
148 | ||
149 | /* sv_2mortal has this side effect of turning on the TEMP flag, which can | |
150 | cause the SV's buffer to get stolen (and maybe other stuff). | |
151 | So restore it. | |
152 | */ | |
153 | sv_2mortal(SvREFCNT_inc(sv)); | |
154 | if (!was_temp) { | |
155 | SvTEMP_off(sv); | |
156 | } | |
157 | ||
455ece5e | 158 | save_magic(mgs_ix, sv); |
463ee0b2 | 159 | |
ff76feab AMS |
160 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
161 | list of magic. svt_get() may delete the current entry, add new | |
162 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
163 | ||
164 | newmg = cur = head = mg = SvMAGIC(sv); | |
165 | while (mg) { | |
35a4481c | 166 | const MGVTBL * const vtbl = mg->mg_virtual; |
ff76feab | 167 | |
2b260de0 | 168 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 169 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 | 170 | |
58f82c5c DM |
171 | /* guard against magic having been deleted - eg FETCH calling |
172 | * untie */ | |
173 | if (!SvMAGIC(sv)) | |
174 | break; | |
b77f7d40 | 175 | |
ff76feab AMS |
176 | /* Don't restore the flags for this entry if it was deleted. */ |
177 | if (mg->mg_flags & MGf_GSKIP) | |
178 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 179 | } |
ff76feab AMS |
180 | |
181 | mg = mg->mg_moremagic; | |
182 | ||
0723351e | 183 | if (have_new) { |
ff76feab AMS |
184 | /* Have we finished with the new entries we saw? Start again |
185 | where we left off (unless there are more new entries). */ | |
186 | if (mg == head) { | |
0723351e | 187 | have_new = 0; |
ff76feab AMS |
188 | mg = cur; |
189 | head = newmg; | |
190 | } | |
191 | } | |
192 | ||
193 | /* Were any new entries added? */ | |
0723351e NC |
194 | if (!have_new && (newmg = SvMAGIC(sv)) != head) { |
195 | have_new = 1; | |
ff76feab AMS |
196 | cur = mg; |
197 | mg = newmg; | |
760ac839 | 198 | } |
79072805 | 199 | } |
463ee0b2 | 200 | |
8772537c | 201 | restore_magic(INT2PTR(void *, (IV)mgs_ix)); |
6683b158 NC |
202 | |
203 | if (SvREFCNT(sv) == 1) { | |
204 | /* We hold the last reference to this SV, which implies that the | |
205 | SV was deleted as a side effect of the routines we called. */ | |
0c34ef67 | 206 | SvOK_off(sv); |
6683b158 | 207 | } |
79072805 LW |
208 | return 0; |
209 | } | |
210 | ||
954c1994 GS |
211 | /* |
212 | =for apidoc mg_set | |
213 | ||
214 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
215 | ||
216 | =cut | |
217 | */ | |
218 | ||
79072805 | 219 | int |
864dbfa3 | 220 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 221 | { |
35a4481c | 222 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 223 | MAGIC* mg; |
463ee0b2 LW |
224 | MAGIC* nextmg; |
225 | ||
455ece5e | 226 | save_magic(mgs_ix, sv); |
463ee0b2 LW |
227 | |
228 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
e1ec3a88 | 229 | const MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 230 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
231 | if (mg->mg_flags & MGf_GSKIP) { |
232 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 233 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 234 | } |
2b260de0 | 235 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 236 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 237 | } |
463ee0b2 | 238 | |
8772537c | 239 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
240 | return 0; |
241 | } | |
242 | ||
954c1994 GS |
243 | /* |
244 | =for apidoc mg_length | |
245 | ||
246 | Report on the SV's length. See C<sv_magic>. | |
247 | ||
248 | =cut | |
249 | */ | |
250 | ||
79072805 | 251 | U32 |
864dbfa3 | 252 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
253 | { |
254 | MAGIC* mg; | |
463ee0b2 | 255 | STRLEN len; |
463ee0b2 | 256 | |
79072805 | 257 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 258 | const MGVTBL * const vtbl = mg->mg_virtual; |
2b260de0 | 259 | if (vtbl && vtbl->svt_len) { |
35a4481c | 260 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
455ece5e | 261 | save_magic(mgs_ix, sv); |
a0d0e21e | 262 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 263 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
8772537c | 264 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
265 | return len; |
266 | } | |
267 | } | |
268 | ||
35a4481c | 269 | if (DO_UTF8(sv)) { |
10516c54 | 270 | const U8 *s = (U8*)SvPV_const(sv, len); |
5636d518 DB |
271 | len = Perl_utf8_length(aTHX_ s, s + len); |
272 | } | |
273 | else | |
10516c54 | 274 | (void)SvPV_const(sv, len); |
463ee0b2 | 275 | return len; |
79072805 LW |
276 | } |
277 | ||
8fb26106 | 278 | I32 |
864dbfa3 | 279 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
280 | { |
281 | MAGIC* mg; | |
ac27b0f5 | 282 | |
93965878 | 283 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 284 | const MGVTBL* const vtbl = mg->mg_virtual; |
2b260de0 | 285 | if (vtbl && vtbl->svt_len) { |
35a4481c AL |
286 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
287 | I32 len; | |
455ece5e | 288 | save_magic(mgs_ix, sv); |
93965878 | 289 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 290 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
8772537c | 291 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
292 | return len; |
293 | } | |
294 | } | |
295 | ||
296 | switch(SvTYPE(sv)) { | |
297 | case SVt_PVAV: | |
35a4481c | 298 | return AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
93965878 NIS |
299 | case SVt_PVHV: |
300 | /* FIXME */ | |
301 | default: | |
cea2e8a9 | 302 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
303 | break; |
304 | } | |
305 | return 0; | |
306 | } | |
307 | ||
954c1994 GS |
308 | /* |
309 | =for apidoc mg_clear | |
310 | ||
311 | Clear something magical that the SV represents. See C<sv_magic>. | |
312 | ||
313 | =cut | |
314 | */ | |
315 | ||
79072805 | 316 | int |
864dbfa3 | 317 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 318 | { |
35a4481c | 319 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 320 | MAGIC* mg; |
463ee0b2 | 321 | |
455ece5e | 322 | save_magic(mgs_ix, sv); |
463ee0b2 | 323 | |
79072805 | 324 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 325 | const MGVTBL* const vtbl = mg->mg_virtual; |
a0d0e21e | 326 | /* omit GSKIP -- never set here */ |
727405f8 | 327 | |
2b260de0 | 328 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 329 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 330 | } |
463ee0b2 | 331 | |
8772537c | 332 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
333 | return 0; |
334 | } | |
335 | ||
954c1994 GS |
336 | /* |
337 | =for apidoc mg_find | |
338 | ||
339 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
340 | ||
341 | =cut | |
342 | */ | |
343 | ||
93a17b20 | 344 | MAGIC* |
35a4481c | 345 | Perl_mg_find(pTHX_ const SV *sv, int type) |
93a17b20 | 346 | { |
35a4481c AL |
347 | if (sv) { |
348 | MAGIC *mg; | |
349 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
350 | if (mg->mg_type == type) | |
351 | return mg; | |
352 | } | |
93a17b20 LW |
353 | } |
354 | return 0; | |
355 | } | |
356 | ||
954c1994 GS |
357 | /* |
358 | =for apidoc mg_copy | |
359 | ||
360 | Copies the magic from one SV to another. See C<sv_magic>. | |
361 | ||
362 | =cut | |
363 | */ | |
364 | ||
79072805 | 365 | int |
864dbfa3 | 366 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 367 | { |
463ee0b2 | 368 | int count = 0; |
79072805 | 369 | MAGIC* mg; |
463ee0b2 | 370 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 371 | const MGVTBL* const vtbl = mg->mg_virtual; |
68795e93 NIS |
372 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
373 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
374 | } | |
823a54a3 AL |
375 | else { |
376 | const char type = mg->mg_type; | |
377 | if (isUPPER(type)) { | |
378 | sv_magic(nsv, | |
379 | (type == PERL_MAGIC_tied) | |
380 | ? SvTIED_obj(sv, mg) | |
381 | : (type == PERL_MAGIC_regdata && mg->mg_obj) | |
382 | ? sv | |
383 | : mg->mg_obj, | |
384 | toLOWER(type), key, klen); | |
385 | count++; | |
386 | } | |
79072805 | 387 | } |
79072805 | 388 | } |
463ee0b2 | 389 | return count; |
79072805 LW |
390 | } |
391 | ||
954c1994 | 392 | /* |
0cbee0a4 DM |
393 | =for apidoc mg_localize |
394 | ||
395 | Copy some of the magic from an existing SV to new localized version of | |
396 | that SV. Container magic (eg %ENV, $1, tie) gets copied, value magic | |
397 | doesn't (eg taint, pos). | |
398 | ||
399 | =cut | |
400 | */ | |
401 | ||
402 | void | |
403 | Perl_mg_localize(pTHX_ SV *sv, SV *nsv) | |
404 | { | |
405 | MAGIC *mg; | |
406 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
407 | const MGVTBL* const vtbl = mg->mg_virtual; | |
408 | switch (mg->mg_type) { | |
409 | /* value magic types: don't copy */ | |
410 | case PERL_MAGIC_bm: | |
411 | case PERL_MAGIC_fm: | |
412 | case PERL_MAGIC_regex_global: | |
413 | case PERL_MAGIC_nkeys: | |
414 | #ifdef USE_LOCALE_COLLATE | |
415 | case PERL_MAGIC_collxfrm: | |
416 | #endif | |
417 | case PERL_MAGIC_qr: | |
418 | case PERL_MAGIC_taint: | |
419 | case PERL_MAGIC_vec: | |
420 | case PERL_MAGIC_vstring: | |
421 | case PERL_MAGIC_utf8: | |
422 | case PERL_MAGIC_substr: | |
423 | case PERL_MAGIC_defelem: | |
424 | case PERL_MAGIC_arylen: | |
425 | case PERL_MAGIC_pos: | |
426 | case PERL_MAGIC_backref: | |
427 | case PERL_MAGIC_arylen_p: | |
428 | case PERL_MAGIC_rhash: | |
429 | case PERL_MAGIC_symtab: | |
430 | continue; | |
431 | } | |
432 | ||
a5063e7c DM |
433 | if ((mg->mg_flags & MGf_LOCAL) && vtbl->svt_local) |
434 | (void)CALL_FPTR(vtbl->svt_local)(aTHX_ nsv, mg); | |
435 | else | |
0cbee0a4 DM |
436 | sv_magicext(nsv, mg->mg_obj, mg->mg_type, vtbl, |
437 | mg->mg_ptr, mg->mg_len); | |
a5063e7c | 438 | |
0cbee0a4 DM |
439 | /* container types should remain read-only across localization */ |
440 | SvFLAGS(nsv) |= SvREADONLY(sv); | |
441 | } | |
442 | ||
443 | if (SvTYPE(nsv) >= SVt_PVMG && SvMAGIC(nsv)) { | |
444 | SvFLAGS(nsv) |= SvMAGICAL(sv); | |
445 | PL_localizing = 1; | |
446 | SvSETMAGIC(nsv); | |
447 | PL_localizing = 0; | |
448 | } | |
449 | } | |
450 | ||
451 | /* | |
954c1994 GS |
452 | =for apidoc mg_free |
453 | ||
454 | Free any magic storage used by the SV. See C<sv_magic>. | |
455 | ||
456 | =cut | |
457 | */ | |
458 | ||
79072805 | 459 | int |
864dbfa3 | 460 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
461 | { |
462 | MAGIC* mg; | |
463 | MAGIC* moremagic; | |
464 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
35a4481c | 465 | const MGVTBL* const vtbl = mg->mg_virtual; |
79072805 | 466 | moremagic = mg->mg_moremagic; |
2b260de0 | 467 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 468 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 469 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
979acdb5 | 470 | if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8) |
88e89b8a | 471 | Safefree(mg->mg_ptr); |
565764a8 | 472 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 473 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 474 | } |
b881518d JH |
475 | if (mg->mg_flags & MGf_REFCOUNTED) |
476 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
477 | Safefree(mg); |
478 | } | |
b162af07 | 479 | SvMAGIC_set(sv, NULL); |
79072805 LW |
480 | return 0; |
481 | } | |
482 | ||
79072805 | 483 | #include <signal.h> |
79072805 | 484 | |
942e002e | 485 | U32 |
864dbfa3 | 486 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 487 | { |
8772537c | 488 | PERL_UNUSED_ARG(sv); |
6cef1e77 | 489 | |
0bd48802 AL |
490 | if (PL_curpm) { |
491 | register const REGEXP * const rx = PM_GETRE(PL_curpm); | |
492 | if (rx) { | |
493 | return mg->mg_obj | |
494 | ? rx->nparens /* @+ */ | |
495 | : rx->lastparen; /* @- */ | |
496 | } | |
8f580fb8 | 497 | } |
ac27b0f5 | 498 | |
942e002e | 499 | return (U32)-1; |
6cef1e77 IZ |
500 | } |
501 | ||
502 | int | |
864dbfa3 | 503 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 504 | { |
0bd48802 AL |
505 | if (PL_curpm) { |
506 | register const REGEXP * const rx = PM_GETRE(PL_curpm); | |
507 | if (rx) { | |
508 | register const I32 paren = mg->mg_len; | |
509 | register I32 s; | |
510 | register I32 t; | |
511 | if (paren < 0) | |
512 | return 0; | |
513 | if (paren <= (I32)rx->nparens && | |
514 | (s = rx->startp[paren]) != -1 && | |
515 | (t = rx->endp[paren]) != -1) | |
516 | { | |
517 | register I32 i; | |
518 | if (mg->mg_obj) /* @+ */ | |
519 | i = t; | |
520 | else /* @- */ | |
521 | i = s; | |
522 | ||
523 | if (i > 0 && RX_MATCH_UTF8(rx)) { | |
524 | const char * const b = rx->subbeg; | |
525 | if (b) | |
526 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
527 | } | |
727405f8 | 528 | |
0bd48802 | 529 | sv_setiv(sv, i); |
1aa99e6b | 530 | } |
0bd48802 | 531 | } |
6cef1e77 IZ |
532 | } |
533 | return 0; | |
534 | } | |
535 | ||
e4b89193 | 536 | int |
a29d06ed MG |
537 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
538 | { | |
8772537c | 539 | PERL_UNUSED_ARG(sv); PERL_UNUSED_ARG(mg); |
a29d06ed | 540 | Perl_croak(aTHX_ PL_no_modify); |
0dbb1585 | 541 | NORETURN_FUNCTION_END; |
a29d06ed MG |
542 | } |
543 | ||
93a17b20 | 544 | U32 |
864dbfa3 | 545 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
546 | { |
547 | register I32 paren; | |
93a17b20 | 548 | register I32 i; |
dd374669 | 549 | register const REGEXP *rx; |
a197cbdd | 550 | I32 s1, t1; |
93a17b20 LW |
551 | |
552 | switch (*mg->mg_ptr) { | |
553 | case '1': case '2': case '3': case '4': | |
554 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 555 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 556 | |
ffc61ed2 | 557 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 558 | getparen: |
eb160463 | 559 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
560 | (s1 = rx->startp[paren]) != -1 && |
561 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 562 | { |
cf93c79d | 563 | i = t1 - s1; |
a197cbdd | 564 | getlen: |
a30b2f1f | 565 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
a28509cc | 566 | const char * const s = rx->subbeg + s1; |
768c67ee JH |
567 | const U8 *ep; |
568 | STRLEN el; | |
ffc61ed2 | 569 | |
6d5fa195 | 570 | i = t1 - s1; |
768c67ee JH |
571 | if (is_utf8_string_loclen((U8*)s, i, &ep, &el)) |
572 | i = el; | |
a197cbdd | 573 | } |
ffc61ed2 | 574 | if (i < 0) |
0844c848 | 575 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 576 | return i; |
93a17b20 | 577 | } |
235bddc8 NIS |
578 | else { |
579 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 580 | report_uninit(sv); |
235bddc8 NIS |
581 | } |
582 | } | |
583 | else { | |
584 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 585 | report_uninit(sv); |
93a17b20 | 586 | } |
748a9306 | 587 | return 0; |
93a17b20 | 588 | case '+': |
aaa362c4 | 589 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 590 | paren = rx->lastparen; |
13f57bf8 CS |
591 | if (paren) |
592 | goto getparen; | |
93a17b20 | 593 | } |
748a9306 | 594 | return 0; |
a01268b5 JH |
595 | case '\016': /* ^N */ |
596 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
597 | paren = rx->lastcloseparen; | |
598 | if (paren) | |
599 | goto getparen; | |
600 | } | |
601 | return 0; | |
93a17b20 | 602 | case '`': |
aaa362c4 | 603 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
604 | if (rx->startp[0] != -1) { |
605 | i = rx->startp[0]; | |
a197cbdd GS |
606 | if (i > 0) { |
607 | s1 = 0; | |
608 | t1 = i; | |
609 | goto getlen; | |
610 | } | |
93a17b20 | 611 | } |
93a17b20 | 612 | } |
748a9306 | 613 | return 0; |
93a17b20 | 614 | case '\'': |
aaa362c4 | 615 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
616 | if (rx->endp[0] != -1) { |
617 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
618 | if (i > 0) { |
619 | s1 = rx->endp[0]; | |
620 | t1 = rx->sublen; | |
621 | goto getlen; | |
622 | } | |
93a17b20 | 623 | } |
93a17b20 | 624 | } |
748a9306 | 625 | return 0; |
93a17b20 LW |
626 | } |
627 | magic_get(sv,mg); | |
2d8e6c8d | 628 | if (!SvPOK(sv) && SvNIOK(sv)) { |
8b6b16e7 | 629 | sv_2pv(sv, 0); |
2d8e6c8d | 630 | } |
93a17b20 LW |
631 | if (SvPOK(sv)) |
632 | return SvCUR(sv); | |
633 | return 0; | |
634 | } | |
635 | ||
ad3296c6 SH |
636 | #define SvRTRIM(sv) STMT_START { \ |
637 | STRLEN len = SvCUR(sv); \ | |
638 | while (len > 0 && isSPACE(SvPVX(sv)[len-1])) \ | |
639 | --len; \ | |
640 | SvCUR_set(sv, len); \ | |
641 | } STMT_END | |
642 | ||
79072805 | 643 | int |
864dbfa3 | 644 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 645 | { |
27da23d5 | 646 | dVAR; |
79072805 | 647 | register I32 paren; |
35272f84 | 648 | register char *s = NULL; |
79072805 | 649 | register I32 i; |
d9f97599 | 650 | register REGEXP *rx; |
823a54a3 AL |
651 | const char * const remaining = mg->mg_ptr + 1; |
652 | const char nextchar = *remaining; | |
79072805 LW |
653 | |
654 | switch (*mg->mg_ptr) { | |
748a9306 | 655 | case '\001': /* ^A */ |
3280af22 | 656 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 657 | break; |
e5218da5 | 658 | case '\003': /* ^C, ^CHILD_ERROR_NATIVE */ |
823a54a3 | 659 | if (nextchar == '\0') { |
e5218da5 GA |
660 | sv_setiv(sv, (IV)PL_minus_c); |
661 | } | |
823a54a3 | 662 | else if (strEQ(remaining, "HILD_ERROR_NATIVE")) { |
e5218da5 GA |
663 | sv_setiv(sv, (IV)STATUS_NATIVE); |
664 | } | |
49460fe6 NIS |
665 | break; |
666 | ||
79072805 | 667 | case '\004': /* ^D */ |
aea4f609 | 668 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
79072805 | 669 | break; |
28f23441 | 670 | case '\005': /* ^E */ |
823a54a3 | 671 | if (nextchar == '\0') { |
cd39f2b6 | 672 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
673 | { |
674 | char msg[256]; | |
727405f8 | 675 | |
0a378802 | 676 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 677 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 678 | } |
727405f8 | 679 | #else |
28f23441 | 680 | #ifdef VMS |
0a378802 JH |
681 | { |
682 | # include <descrip.h> | |
683 | # include <starlet.h> | |
684 | char msg[255]; | |
685 | $DESCRIPTOR(msgdsc,msg); | |
686 | sv_setnv(sv,(NV) vaxc$errno); | |
687 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
688 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
689 | else | |
c69006e4 | 690 | sv_setpvn(sv,"",0); |
0a378802 | 691 | } |
28f23441 | 692 | #else |
88e89b8a | 693 | #ifdef OS2 |
0a378802 JH |
694 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
695 | sv_setnv(sv, (NV)errno); | |
696 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
697 | } else { | |
698 | if (errno != errno_isOS2) { | |
823a54a3 | 699 | const int tmp = _syserrno(); |
0a378802 JH |
700 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
701 | Perl_rc = tmp; | |
702 | } | |
703 | sv_setnv(sv, (NV)Perl_rc); | |
704 | sv_setpv(sv, os2error(Perl_rc)); | |
705 | } | |
88e89b8a | 706 | #else |
22fae026 | 707 | #ifdef WIN32 |
0a378802 JH |
708 | { |
709 | DWORD dwErr = GetLastError(); | |
710 | sv_setnv(sv, (NV)dwErr); | |
823a54a3 | 711 | if (dwErr) { |
0a378802 JH |
712 | PerlProc_GetOSError(sv, dwErr); |
713 | } | |
714 | else | |
c69006e4 | 715 | sv_setpvn(sv, "", 0); |
0a378802 JH |
716 | SetLastError(dwErr); |
717 | } | |
22fae026 | 718 | #else |
f6c8f21d | 719 | { |
8772537c | 720 | const int saveerrno = errno; |
f6c8f21d RGS |
721 | sv_setnv(sv, (NV)errno); |
722 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
723 | errno = saveerrno; | |
724 | } | |
28f23441 | 725 | #endif |
88e89b8a | 726 | #endif |
22fae026 | 727 | #endif |
cd39f2b6 | 728 | #endif |
ad3296c6 | 729 | SvRTRIM(sv); |
0a378802 JH |
730 | SvNOK_on(sv); /* what a wonderful hack! */ |
731 | } | |
823a54a3 | 732 | else if (strEQ(remaining, "NCODING")) |
0a378802 JH |
733 | sv_setsv(sv, PL_encoding); |
734 | break; | |
79072805 | 735 | case '\006': /* ^F */ |
3280af22 | 736 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 737 | break; |
a0d0e21e | 738 | case '\010': /* ^H */ |
3280af22 | 739 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 740 | break; |
9d116dd7 | 741 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
742 | if (PL_inplace) |
743 | sv_setpv(sv, PL_inplace); | |
79072805 | 744 | else |
3280af22 | 745 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 746 | break; |
ac27b0f5 | 747 | case '\017': /* ^O & ^OPEN */ |
823a54a3 | 748 | if (nextchar == '\0') { |
ac27b0f5 | 749 | sv_setpv(sv, PL_osname); |
3511154c DM |
750 | SvTAINTED_off(sv); |
751 | } | |
823a54a3 | 752 | else if (strEQ(remaining, "PEN")) { |
ac27b0f5 NIS |
753 | if (!PL_compiling.cop_io) |
754 | sv_setsv(sv, &PL_sv_undef); | |
755 | else { | |
756 | sv_setsv(sv, PL_compiling.cop_io); | |
757 | } | |
758 | } | |
28f23441 | 759 | break; |
79072805 | 760 | case '\020': /* ^P */ |
3280af22 | 761 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 762 | break; |
fb73857a | 763 | case '\023': /* ^S */ |
823a54a3 | 764 | if (nextchar == '\0') { |
3280af22 | 765 | if (PL_lex_state != LEX_NOTPARSING) |
0c34ef67 | 766 | SvOK_off(sv); |
3280af22 | 767 | else if (PL_in_eval) |
6dc8a9e4 | 768 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
769 | else |
770 | sv_setiv(sv, 0); | |
d58bf5aa | 771 | } |
fb73857a | 772 | break; |
79072805 | 773 | case '\024': /* ^T */ |
823a54a3 | 774 | if (nextchar == '\0') { |
88e89b8a | 775 | #ifdef BIG_TIME |
7c36658b | 776 | sv_setnv(sv, PL_basetime); |
88e89b8a | 777 | #else |
7c36658b | 778 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 779 | #endif |
7c36658b | 780 | } |
823a54a3 | 781 | else if (strEQ(remaining, "AINT")) |
9aa05f58 RGS |
782 | sv_setiv(sv, PL_tainting |
783 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
784 | : 0); | |
7c36658b | 785 | break; |
7cebcbc0 | 786 | case '\025': /* $^UNICODE, $^UTF8LOCALE */ |
823a54a3 | 787 | if (strEQ(remaining, "NICODE")) |
a05d7ebb | 788 | sv_setuv(sv, (UV) PL_unicode); |
823a54a3 | 789 | else if (strEQ(remaining, "TF8LOCALE")) |
7cebcbc0 | 790 | sv_setuv(sv, (UV) PL_utf8locale); |
fde18df1 JH |
791 | break; |
792 | case '\027': /* ^W & $^WARNING_BITS */ | |
823a54a3 | 793 | if (nextchar == '\0') |
4438c4b7 | 794 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
823a54a3 | 795 | else if (strEQ(remaining, "ARNING_BITS")) { |
013b78e8 | 796 | if (PL_compiling.cop_warnings == pWARN_NONE) { |
4438c4b7 | 797 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
013b78e8 RGS |
798 | } |
799 | else if (PL_compiling.cop_warnings == pWARN_STD) { | |
800 | sv_setpvn( | |
801 | sv, | |
802 | (PL_dowarn & G_WARN_ON) ? WARN_ALLstring : WARN_NONEstring, | |
803 | WARNsize | |
804 | ); | |
805 | } | |
d3a7d8c7 | 806 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
807 | /* Get the bit mask for $warnings::Bits{all}, because |
808 | * it could have been extended by warnings::register */ | |
809 | SV **bits_all; | |
823a54a3 | 810 | HV * const bits=get_hv("warnings::Bits", FALSE); |
75b6c4ca RGS |
811 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { |
812 | sv_setsv(sv, *bits_all); | |
813 | } | |
814 | else { | |
815 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
816 | } | |
ac27b0f5 | 817 | } |
4438c4b7 JH |
818 | else { |
819 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 820 | } |
d3a7d8c7 | 821 | SvPOK_only(sv); |
4438c4b7 | 822 | } |
79072805 LW |
823 | break; |
824 | case '1': case '2': case '3': case '4': | |
825 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 826 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
827 | I32 s1, t1; |
828 | ||
a863c7d1 MB |
829 | /* |
830 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
831 | * XXX Does the new way break anything? | |
832 | */ | |
ffc61ed2 | 833 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 834 | getparen: |
eb160463 | 835 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
836 | (s1 = rx->startp[paren]) != -1 && |
837 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 838 | { |
cf93c79d IZ |
839 | i = t1 - s1; |
840 | s = rx->subbeg + s1; | |
01ec43d0 | 841 | if (!rx->subbeg) |
c2e66d9e GS |
842 | break; |
843 | ||
13f57bf8 | 844 | getrx: |
748a9306 | 845 | if (i >= 0) { |
fabdb6c0 | 846 | const int oldtainted = PL_tainted; |
f6ba9920 | 847 | TAINT_NOT; |
cf93c79d | 848 | sv_setpvn(sv, s, i); |
f6ba9920 | 849 | PL_tainted = oldtainted; |
a30b2f1f | 850 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
851 | SvUTF8_on(sv); |
852 | else | |
853 | SvUTF8_off(sv); | |
e9814ee1 HS |
854 | if (PL_tainting) { |
855 | if (RX_MATCH_TAINTED(rx)) { | |
823a54a3 | 856 | MAGIC* const mg = SvMAGIC(sv); |
e9814ee1 HS |
857 | MAGIC* mgt; |
858 | PL_tainted = 1; | |
b162af07 | 859 | SvMAGIC_set(sv, mg->mg_moremagic); |
e9814ee1 HS |
860 | SvTAINT(sv); |
861 | if ((mgt = SvMAGIC(sv))) { | |
862 | mg->mg_moremagic = mgt; | |
b162af07 | 863 | SvMAGIC_set(sv, mg); |
e9814ee1 HS |
864 | } |
865 | } else | |
866 | SvTAINTED_off(sv); | |
867 | } | |
748a9306 LW |
868 | break; |
869 | } | |
79072805 | 870 | } |
79072805 | 871 | } |
3280af22 | 872 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
873 | break; |
874 | case '+': | |
aaa362c4 | 875 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 876 | paren = rx->lastparen; |
a0d0e21e LW |
877 | if (paren) |
878 | goto getparen; | |
79072805 | 879 | } |
3280af22 | 880 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 881 | break; |
a01268b5 JH |
882 | case '\016': /* ^N */ |
883 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
884 | paren = rx->lastcloseparen; | |
885 | if (paren) | |
886 | goto getparen; | |
887 | } | |
888 | sv_setsv(sv,&PL_sv_undef); | |
889 | break; | |
79072805 | 890 | case '`': |
aaa362c4 | 891 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
892 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
893 | i = rx->startp[0]; | |
13f57bf8 | 894 | goto getrx; |
79072805 | 895 | } |
79072805 | 896 | } |
3280af22 | 897 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
898 | break; |
899 | case '\'': | |
aaa362c4 | 900 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
901 | if (rx->subbeg && rx->endp[0] != -1) { |
902 | s = rx->subbeg + rx->endp[0]; | |
903 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 904 | goto getrx; |
79072805 | 905 | } |
79072805 | 906 | } |
3280af22 | 907 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
908 | break; |
909 | case '.': | |
3280af22 | 910 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 911 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 | 912 | } |
79072805 LW |
913 | break; |
914 | case '?': | |
809a5acc | 915 | { |
809a5acc | 916 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 917 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
918 | LvTARGOFF(sv) = PL_statusvalue; |
919 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 920 | #endif |
809a5acc | 921 | } |
79072805 LW |
922 | break; |
923 | case '^': | |
0daa599b RGS |
924 | if (GvIOp(PL_defoutgv)) |
925 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
926 | if (s) |
927 | sv_setpv(sv,s); | |
928 | else { | |
3280af22 | 929 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
930 | sv_catpv(sv,"_TOP"); |
931 | } | |
932 | break; | |
933 | case '~': | |
0daa599b RGS |
934 | if (GvIOp(PL_defoutgv)) |
935 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 936 | if (!s) |
3280af22 | 937 | s = GvENAME(PL_defoutgv); |
79072805 LW |
938 | sv_setpv(sv,s); |
939 | break; | |
79072805 | 940 | case '=': |
0daa599b RGS |
941 | if (GvIOp(PL_defoutgv)) |
942 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
943 | break; |
944 | case '-': | |
0daa599b RGS |
945 | if (GvIOp(PL_defoutgv)) |
946 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
947 | break; |
948 | case '%': | |
0daa599b RGS |
949 | if (GvIOp(PL_defoutgv)) |
950 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 | 951 | break; |
79072805 LW |
952 | case ':': |
953 | break; | |
954 | case '/': | |
955 | break; | |
956 | case '[': | |
3280af22 | 957 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
958 | break; |
959 | case '|': | |
0daa599b RGS |
960 | if (GvIOp(PL_defoutgv)) |
961 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
962 | break; |
963 | case ',': | |
79072805 LW |
964 | break; |
965 | case '\\': | |
b2ce0fda | 966 | if (PL_ors_sv) |
f28098ff | 967 | sv_copypv(sv, PL_ors_sv); |
79072805 | 968 | break; |
79072805 | 969 | case '!': |
a5f75d66 | 970 | #ifdef VMS |
65202027 | 971 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 972 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 973 | #else |
88e89b8a | 974 | { |
8772537c | 975 | const int saveerrno = errno; |
65202027 | 976 | sv_setnv(sv, (NV)errno); |
88e89b8a | 977 | #ifdef OS2 |
ed344e4f IZ |
978 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
979 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 980 | else |
a5f75d66 | 981 | #endif |
2304df62 | 982 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 983 | errno = saveerrno; |
984 | } | |
985 | #endif | |
ad3296c6 | 986 | SvRTRIM(sv); |
946ec16e | 987 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
988 | break; |
989 | case '<': | |
3280af22 | 990 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
991 | break; |
992 | case '>': | |
3280af22 | 993 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
994 | break; |
995 | case '(': | |
3280af22 | 996 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 997 | #ifdef HAS_GETGROUPS |
a3b680e6 | 998 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_gid); |
a52cb5f7 | 999 | #endif |
79072805 LW |
1000 | goto add_groups; |
1001 | case ')': | |
3280af22 | 1002 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 1003 | #ifdef HAS_GETGROUPS |
a3b680e6 | 1004 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_egid); |
a52cb5f7 | 1005 | #endif |
79072805 | 1006 | add_groups: |
79072805 | 1007 | #ifdef HAS_GETGROUPS |
79072805 | 1008 | { |
57d7c65e JC |
1009 | Groups_t *gary = NULL; |
1010 | I32 num_groups = getgroups(0, gary); | |
1011 | Newx(gary, num_groups, Groups_t); | |
1012 | num_groups = getgroups(num_groups, gary); | |
1013 | while (--num_groups >= 0) | |
1014 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, | |
1015 | (long unsigned int)gary[num_groups]); | |
1016 | Safefree(gary); | |
79072805 LW |
1017 | } |
1018 | #endif | |
155aba94 | 1019 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 | 1020 | break; |
cd39f2b6 | 1021 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
1022 | case '0': |
1023 | break; | |
cd39f2b6 | 1024 | #endif |
79072805 | 1025 | } |
a0d0e21e | 1026 | return 0; |
79072805 LW |
1027 | } |
1028 | ||
1029 | int | |
864dbfa3 | 1030 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1031 | { |
8772537c | 1032 | struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
1033 | |
1034 | if (uf && uf->uf_val) | |
24f81a43 | 1035 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1036 | return 0; |
1037 | } | |
1038 | ||
1039 | int | |
864dbfa3 | 1040 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1041 | { |
27da23d5 | 1042 | dVAR; |
5aabfad6 | 1043 | STRLEN len, klen; |
fabdb6c0 AL |
1044 | const char *s = SvPV_const(sv,len); |
1045 | const char * const ptr = MgPV_const(mg,klen); | |
88e89b8a | 1046 | my_setenv(ptr, s); |
1e422769 | 1047 | |
a0d0e21e LW |
1048 | #ifdef DYNAMIC_ENV_FETCH |
1049 | /* We just undefd an environment var. Is a replacement */ | |
1050 | /* waiting in the wings? */ | |
1051 | if (!len) { | |
fabdb6c0 AL |
1052 | SV ** const valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE); |
1053 | if (valp) | |
b83604b4 | 1054 | s = SvPV_const(*valp, len); |
a0d0e21e LW |
1055 | } |
1056 | #endif | |
1e422769 | 1057 | |
39e571d4 | 1058 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
1059 | /* And you'll never guess what the dog had */ |
1060 | /* in its mouth... */ | |
3280af22 | 1061 | if (PL_tainting) { |
1e422769 | 1062 | MgTAINTEDDIR_off(mg); |
1063 | #ifdef VMS | |
5aabfad6 | 1064 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
b8ffc8df | 1065 | char pathbuf[256], eltbuf[256], *cp, *elt; |
c623ac67 | 1066 | Stat_t sbuf; |
1e422769 | 1067 | int i = 0, j = 0; |
1068 | ||
b8ffc8df RGS |
1069 | strncpy(eltbuf, s, 255); |
1070 | eltbuf[255] = 0; | |
1071 | elt = eltbuf; | |
1e422769 | 1072 | do { /* DCL$PATH may be a search list */ |
1073 | while (1) { /* as may dev portion of any element */ | |
1074 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
1075 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
1076 | cando_by_name(S_IWUSR,0,elt) ) { | |
1077 | MgTAINTEDDIR_on(mg); | |
1078 | return 0; | |
1079 | } | |
1080 | } | |
1081 | if ((cp = strchr(elt, ':')) != Nullch) | |
1082 | *cp = '\0'; | |
1083 | if (my_trnlnm(elt, eltbuf, j++)) | |
1084 | elt = eltbuf; | |
1085 | else | |
1086 | break; | |
1087 | } | |
1088 | j = 0; | |
1089 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
1090 | } | |
1091 | #endif /* VMS */ | |
5aabfad6 | 1092 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
8772537c | 1093 | const char * const strend = s + len; |
463ee0b2 LW |
1094 | |
1095 | while (s < strend) { | |
96827780 | 1096 | char tmpbuf[256]; |
c623ac67 | 1097 | Stat_t st; |
5f74f29c | 1098 | I32 i; |
96827780 | 1099 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 1100 | s, strend, ':', &i); |
463ee0b2 | 1101 | s++; |
96827780 MB |
1102 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
1103 | || *tmpbuf != '/' | |
c6ed36e1 | 1104 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 1105 | MgTAINTEDDIR_on(mg); |
1e422769 | 1106 | return 0; |
1107 | } | |
463ee0b2 | 1108 | } |
79072805 LW |
1109 | } |
1110 | } | |
39e571d4 | 1111 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1112 | |
79072805 LW |
1113 | return 0; |
1114 | } | |
1115 | ||
1116 | int | |
864dbfa3 | 1117 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1118 | { |
8772537c | 1119 | PERL_UNUSED_ARG(sv); |
01b8bcb7 | 1120 | my_setenv(MgPV_nolen_const(mg),Nullch); |
85e6fe83 LW |
1121 | return 0; |
1122 | } | |
1123 | ||
88e89b8a | 1124 | int |
864dbfa3 | 1125 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1126 | { |
65e66c80 | 1127 | PERL_UNUSED_ARG(mg); |
b0269e46 | 1128 | #if defined(VMS) |
cea2e8a9 | 1129 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1130 | #else |
3280af22 | 1131 | if (PL_localizing) { |
fb73857a | 1132 | HE* entry; |
b0269e46 | 1133 | my_clearenv(); |
fb73857a | 1134 | hv_iterinit((HV*)sv); |
155aba94 | 1135 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1136 | I32 keylen; |
1137 | my_setenv(hv_iterkey(entry, &keylen), | |
b83604b4 | 1138 | SvPV_nolen_const(hv_iterval((HV*)sv, entry))); |
fb73857a | 1139 | } |
1140 | } | |
1141 | #endif | |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | int | |
864dbfa3 | 1146 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1147 | { |
27da23d5 | 1148 | dVAR; |
8772537c AL |
1149 | PERL_UNUSED_ARG(sv); |
1150 | PERL_UNUSED_ARG(mg); | |
b0269e46 AB |
1151 | #if defined(VMS) |
1152 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); | |
1153 | #else | |
1154 | my_clearenv(); | |
1155 | #endif | |
3e3baf6d | 1156 | return 0; |
66b1d557 HM |
1157 | } |
1158 | ||
64ca3a65 | 1159 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1160 | #ifdef HAS_SIGPROCMASK |
1161 | static void | |
1162 | restore_sigmask(pTHX_ SV *save_sv) | |
1163 | { | |
0bd48802 | 1164 | const sigset_t * const ossetp = (const sigset_t *) SvPV_nolen_const( save_sv ); |
2d4fcd5e AJ |
1165 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); |
1166 | } | |
1167 | #endif | |
66b1d557 | 1168 | int |
864dbfa3 | 1169 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1170 | { |
88e89b8a | 1171 | /* Are we fetching a signal entry? */ |
8772537c | 1172 | const I32 i = whichsig(MgPV_nolen_const(mg)); |
e02bfb16 | 1173 | if (i > 0) { |
22c35a8c GS |
1174 | if(PL_psig_ptr[i]) |
1175 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1176 | else { |
85b332e2 | 1177 | Sighandler_t sigstate; |
2e34cc90 | 1178 | sigstate = rsignal_state(i); |
23ada85b | 1179 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1180 | if (PL_sig_handlers_initted && PL_sig_ignoring[i]) sigstate = SIG_IGN; |
2e34cc90 CL |
1181 | #endif |
1182 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1183 | if (PL_sig_handlers_initted && PL_sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 | 1184 | #endif |
88e89b8a | 1185 | /* cache state so we don't fetch it again */ |
8aad04aa | 1186 | if(sigstate == (Sighandler_t) SIG_IGN) |
88e89b8a | 1187 | sv_setpv(sv,"IGNORE"); |
1188 | else | |
3280af22 | 1189 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1190 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1191 | SvTEMP_off(sv); |
1192 | } | |
1193 | } | |
1194 | return 0; | |
1195 | } | |
1196 | int | |
864dbfa3 | 1197 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1198 | { |
2d4fcd5e AJ |
1199 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1200 | * refactoring might be in order. | |
1201 | */ | |
27da23d5 | 1202 | dVAR; |
8772537c AL |
1203 | register const char * const s = MgPV_nolen_const(mg); |
1204 | PERL_UNUSED_ARG(sv); | |
2d4fcd5e | 1205 | if (*s == '_') { |
cbbf8932 | 1206 | SV** svp = NULL; |
2d4fcd5e AJ |
1207 | if (strEQ(s,"__DIE__")) |
1208 | svp = &PL_diehook; | |
1209 | else if (strEQ(s,"__WARN__")) | |
1210 | svp = &PL_warnhook; | |
1211 | else | |
1212 | Perl_croak(aTHX_ "No such hook: %s", s); | |
27da23d5 | 1213 | if (svp && *svp) { |
8772537c | 1214 | SV * const to_dec = *svp; |
cbbf8932 | 1215 | *svp = NULL; |
2d4fcd5e AJ |
1216 | SvREFCNT_dec(to_dec); |
1217 | } | |
1218 | } | |
1219 | else { | |
2d4fcd5e | 1220 | /* Are we clearing a signal entry? */ |
8772537c | 1221 | const I32 i = whichsig(s); |
e02bfb16 | 1222 | if (i > 0) { |
2d4fcd5e AJ |
1223 | #ifdef HAS_SIGPROCMASK |
1224 | sigset_t set, save; | |
1225 | SV* save_sv; | |
1226 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1227 | sigemptyset(&set); | |
1228 | sigaddset(&set,i); | |
1229 | sigprocmask(SIG_BLOCK, &set, &save); | |
1230 | ENTER; | |
1231 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1232 | SAVEFREESV(save_sv); | |
1233 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1234 | #endif | |
1235 | PERL_ASYNC_CHECK(); | |
1236 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
27da23d5 | 1237 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2d4fcd5e AJ |
1238 | #endif |
1239 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1240 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1241 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e | 1242 | #else |
8aad04aa | 1243 | (void)rsignal(i, (Sighandler_t) SIG_DFL); |
2d4fcd5e AJ |
1244 | #endif |
1245 | if(PL_psig_name[i]) { | |
1246 | SvREFCNT_dec(PL_psig_name[i]); | |
1247 | PL_psig_name[i]=0; | |
1248 | } | |
1249 | if(PL_psig_ptr[i]) { | |
dd374669 | 1250 | SV *to_dec=PL_psig_ptr[i]; |
2d4fcd5e AJ |
1251 | PL_psig_ptr[i]=0; |
1252 | LEAVE; | |
1253 | SvREFCNT_dec(to_dec); | |
1254 | } | |
1255 | else | |
1256 | LEAVE; | |
1257 | } | |
88e89b8a | 1258 | } |
1259 | return 0; | |
1260 | } | |
3d37d572 | 1261 | |
dd374669 AL |
1262 | static void |
1263 | S_raise_signal(pTHX_ int sig) | |
0a8e0eff NIS |
1264 | { |
1265 | /* Set a flag to say this signal is pending */ | |
1266 | PL_psig_pend[sig]++; | |
1267 | /* And one to say _a_ signal is pending */ | |
1268 | PL_sig_pending = 1; | |
1269 | } | |
1270 | ||
1271 | Signal_t | |
8aad04aa JH |
1272 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
1273 | Perl_csighandler(int sig, ...) | |
1274 | #else | |
0a8e0eff | 1275 | Perl_csighandler(int sig) |
8aad04aa | 1276 | #endif |
0a8e0eff | 1277 | { |
1018e26f NIS |
1278 | #ifdef PERL_GET_SIG_CONTEXT |
1279 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1280 | #else | |
85b332e2 CL |
1281 | dTHX; |
1282 | #endif | |
23ada85b | 1283 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc | 1284 | (void) rsignal(sig, PL_csighandlerp); |
27da23d5 | 1285 | if (PL_sig_ignoring[sig]) return; |
85b332e2 | 1286 | #endif |
2e34cc90 | 1287 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1288 | if (PL_sig_defaulting[sig]) |
2e34cc90 CL |
1289 | #ifdef KILL_BY_SIGPRC |
1290 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1291 | #else | |
1292 | exit(1); | |
1293 | #endif | |
1294 | #endif | |
4ffa73a3 JH |
1295 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1296 | /* Call the perl level handler now-- | |
1297 | * with risk we may be in malloc() etc. */ | |
1298 | (*PL_sighandlerp)(sig); | |
1299 | else | |
dd374669 | 1300 | S_raise_signal(aTHX_ sig); |
0a8e0eff NIS |
1301 | } |
1302 | ||
2e34cc90 CL |
1303 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1304 | void | |
1305 | Perl_csighandler_init(void) | |
1306 | { | |
1307 | int sig; | |
27da23d5 | 1308 | if (PL_sig_handlers_initted) return; |
2e34cc90 CL |
1309 | |
1310 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1311 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1312 | dTHX; |
27da23d5 | 1313 | PL_sig_defaulting[sig] = 1; |
5c1546dc | 1314 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1315 | #endif |
1316 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
27da23d5 | 1317 | PL_sig_ignoring[sig] = 0; |
2e34cc90 CL |
1318 | #endif |
1319 | } | |
27da23d5 | 1320 | PL_sig_handlers_initted = 1; |
2e34cc90 CL |
1321 | } |
1322 | #endif | |
1323 | ||
0a8e0eff NIS |
1324 | void |
1325 | Perl_despatch_signals(pTHX) | |
1326 | { | |
1327 | int sig; | |
1328 | PL_sig_pending = 0; | |
1329 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1330 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1331 | PERL_BLOCKSIG_ADD(set, sig); |
1332 | PL_psig_pend[sig] = 0; | |
1333 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1334 | (*PL_sighandlerp)(sig); |
25da4428 | 1335 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1336 | } |
1337 | } | |
1338 | } | |
1339 | ||
85e6fe83 | 1340 | int |
864dbfa3 | 1341 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1342 | { |
27da23d5 | 1343 | dVAR; |
79072805 | 1344 | I32 i; |
cbbf8932 | 1345 | SV** svp = NULL; |
2d4fcd5e AJ |
1346 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1347 | * effects (due to closures). We must make sure that the new disposition | |
1348 | * is in place before it is called. | |
1349 | */ | |
cbbf8932 | 1350 | SV* to_dec = NULL; |
e72dc28c | 1351 | STRLEN len; |
2d4fcd5e AJ |
1352 | #ifdef HAS_SIGPROCMASK |
1353 | sigset_t set, save; | |
1354 | SV* save_sv; | |
1355 | #endif | |
a0d0e21e | 1356 | |
d5263905 | 1357 | register const char *s = MgPV_const(mg,len); |
748a9306 LW |
1358 | if (*s == '_') { |
1359 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1360 | svp = &PL_diehook; |
748a9306 | 1361 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1362 | svp = &PL_warnhook; |
748a9306 | 1363 | else |
cea2e8a9 | 1364 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1365 | i = 0; |
4633a7c4 | 1366 | if (*svp) { |
2d4fcd5e | 1367 | to_dec = *svp; |
cbbf8932 | 1368 | *svp = NULL; |
4633a7c4 | 1369 | } |
748a9306 LW |
1370 | } |
1371 | else { | |
1372 | i = whichsig(s); /* ...no, a brick */ | |
86d86cad | 1373 | if (i <= 0) { |
e476b1b5 | 1374 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1375 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1376 | return 0; |
1377 | } | |
2d4fcd5e AJ |
1378 | #ifdef HAS_SIGPROCMASK |
1379 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1380 | sigemptyset(&set); | |
1381 | sigaddset(&set,i); | |
1382 | sigprocmask(SIG_BLOCK, &set, &save); | |
1383 | ENTER; | |
1384 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1385 | SAVEFREESV(save_sv); | |
1386 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1387 | #endif | |
1388 | PERL_ASYNC_CHECK(); | |
2e34cc90 | 1389 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
27da23d5 | 1390 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2e34cc90 | 1391 | #endif |
23ada85b | 1392 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1393 | PL_sig_ignoring[i] = 0; |
85b332e2 | 1394 | #endif |
2e34cc90 | 1395 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1396 | PL_sig_defaulting[i] = 0; |
2e34cc90 | 1397 | #endif |
22c35a8c | 1398 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1399 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1400 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1401 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1402 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1403 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1404 | } |
a0d0e21e | 1405 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1406 | if (i) { |
5c1546dc | 1407 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1408 | #ifdef HAS_SIGPROCMASK |
1409 | LEAVE; | |
1410 | #endif | |
1411 | } | |
748a9306 LW |
1412 | else |
1413 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1414 | if(to_dec) |
1415 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1416 | return 0; |
1417 | } | |
e72dc28c | 1418 | s = SvPV_force(sv,len); |
748a9306 | 1419 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1420 | if (i) { |
23ada85b | 1421 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1422 | PL_sig_ignoring[i] = 1; |
5c1546dc | 1423 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1424 | #else |
8aad04aa | 1425 | (void)rsignal(i, (Sighandler_t) SIG_IGN); |
85b332e2 | 1426 | #endif |
2d4fcd5e | 1427 | } |
748a9306 LW |
1428 | } |
1429 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1430 | if (i) | |
2e34cc90 CL |
1431 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1432 | { | |
27da23d5 | 1433 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1434 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1435 | } |
1436 | #else | |
8aad04aa | 1437 | (void)rsignal(i, (Sighandler_t) SIG_DFL); |
2e34cc90 | 1438 | #endif |
748a9306 | 1439 | } |
79072805 | 1440 | else { |
5aabfad6 | 1441 | /* |
1442 | * We should warn if HINT_STRICT_REFS, but without | |
1443 | * access to a known hint bit in a known OP, we can't | |
1444 | * tell whether HINT_STRICT_REFS is in force or not. | |
1445 | */ | |
46fc3d4c | 1446 | if (!strchr(s,':') && !strchr(s,'\'')) |
89529cee | 1447 | Perl_sv_insert(aTHX_ sv, 0, 0, STR_WITH_LEN("main::")); |
748a9306 | 1448 | if (i) |
5c1546dc | 1449 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1450 | else |
1451 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1452 | } |
2d4fcd5e AJ |
1453 | #ifdef HAS_SIGPROCMASK |
1454 | if(i) | |
1455 | LEAVE; | |
1456 | #endif | |
1457 | if(to_dec) | |
1458 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1459 | return 0; |
1460 | } | |
64ca3a65 | 1461 | #endif /* !PERL_MICRO */ |
79072805 LW |
1462 | |
1463 | int | |
864dbfa3 | 1464 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1465 | { |
8772537c AL |
1466 | PERL_UNUSED_ARG(sv); |
1467 | PERL_UNUSED_ARG(mg); | |
3280af22 | 1468 | PL_sub_generation++; |
463ee0b2 LW |
1469 | return 0; |
1470 | } | |
1471 | ||
1472 | int | |
864dbfa3 | 1473 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1474 | { |
8772537c AL |
1475 | PERL_UNUSED_ARG(sv); |
1476 | PERL_UNUSED_ARG(mg); | |
a0d0e21e | 1477 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1478 | PL_amagic_generation++; |
463ee0b2 | 1479 | |
a0d0e21e LW |
1480 | return 0; |
1481 | } | |
463ee0b2 | 1482 | |
946ec16e | 1483 | int |
864dbfa3 | 1484 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1485 | { |
dd374669 | 1486 | HV * const hv = (HV*)LvTARG(sv); |
6ff81951 | 1487 | I32 i = 0; |
8772537c | 1488 | PERL_UNUSED_ARG(mg); |
7719e241 | 1489 | |
6ff81951 | 1490 | if (hv) { |
497b47a8 JH |
1491 | (void) hv_iterinit(hv); |
1492 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1493 | i = HvKEYS(hv); | |
1494 | else { | |
1495 | while (hv_iternext(hv)) | |
1496 | i++; | |
1497 | } | |
6ff81951 GS |
1498 | } |
1499 | ||
1500 | sv_setiv(sv, (IV)i); | |
1501 | return 0; | |
1502 | } | |
1503 | ||
1504 | int | |
864dbfa3 | 1505 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1506 | { |
8772537c | 1507 | PERL_UNUSED_ARG(mg); |
946ec16e | 1508 | if (LvTARG(sv)) { |
1509 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1510 | } |
1511 | return 0; | |
ac27b0f5 | 1512 | } |
946ec16e | 1513 | |
e336de0d | 1514 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1515 | STATIC int |
e1ec3a88 | 1516 | S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1517 | { |
1518 | dSP; | |
463ee0b2 | 1519 | |
924508f0 GS |
1520 | PUSHMARK(SP); |
1521 | EXTEND(SP, n); | |
33c27489 | 1522 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1523 | if (n > 1) { |
93965878 | 1524 | if (mg->mg_ptr) { |
565764a8 | 1525 | if (mg->mg_len >= 0) |
79cb57f6 | 1526 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1527 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1528 | PUSHs((SV*)mg->mg_ptr); |
1529 | } | |
14befaf4 | 1530 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1531 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1532 | } |
1533 | } | |
1534 | if (n > 2) { | |
1535 | PUSHs(val); | |
88e89b8a | 1536 | } |
463ee0b2 LW |
1537 | PUTBACK; |
1538 | ||
864dbfa3 | 1539 | return call_method(meth, flags); |
946ec16e | 1540 | } |
1541 | ||
76e3520e | 1542 | STATIC int |
e1ec3a88 | 1543 | S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth) |
a0d0e21e | 1544 | { |
27da23d5 | 1545 | dVAR; dSP; |
463ee0b2 | 1546 | |
a0d0e21e LW |
1547 | ENTER; |
1548 | SAVETMPS; | |
e788e7d3 | 1549 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1550 | |
33c27489 | 1551 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1552 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1553 | } |
463ee0b2 | 1554 | |
d3acc0f7 | 1555 | POPSTACK; |
a0d0e21e LW |
1556 | FREETMPS; |
1557 | LEAVE; | |
1558 | return 0; | |
1559 | } | |
463ee0b2 | 1560 | |
a0d0e21e | 1561 | int |
864dbfa3 | 1562 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1563 | { |
a0d0e21e LW |
1564 | if (mg->mg_ptr) |
1565 | mg->mg_flags |= MGf_GSKIP; | |
58f82c5c | 1566 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1567 | return 0; |
1568 | } | |
1569 | ||
1570 | int | |
864dbfa3 | 1571 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d | 1572 | { |
27da23d5 | 1573 | dVAR; dSP; |
a60c0954 | 1574 | ENTER; |
e788e7d3 | 1575 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1576 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1577 | POPSTACK; |
a60c0954 | 1578 | LEAVE; |
463ee0b2 LW |
1579 | return 0; |
1580 | } | |
1581 | ||
1582 | int | |
864dbfa3 | 1583 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1584 | { |
a0d0e21e LW |
1585 | return magic_methpack(sv,mg,"DELETE"); |
1586 | } | |
463ee0b2 | 1587 | |
93965878 NIS |
1588 | |
1589 | U32 | |
864dbfa3 | 1590 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1591 | { |
27da23d5 | 1592 | dVAR; dSP; |
93965878 NIS |
1593 | U32 retval = 0; |
1594 | ||
1595 | ENTER; | |
1596 | SAVETMPS; | |
e788e7d3 | 1597 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1598 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1599 | sv = *PL_stack_sp--; |
a60c0954 | 1600 | retval = (U32) SvIV(sv)-1; |
93965878 | 1601 | } |
d3acc0f7 | 1602 | POPSTACK; |
93965878 NIS |
1603 | FREETMPS; |
1604 | LEAVE; | |
1605 | return retval; | |
1606 | } | |
1607 | ||
cea2e8a9 GS |
1608 | int |
1609 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e | 1610 | { |
27da23d5 | 1611 | dVAR; dSP; |
463ee0b2 | 1612 | |
e336de0d | 1613 | ENTER; |
e788e7d3 | 1614 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1615 | PUSHMARK(SP); |
33c27489 | 1616 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1617 | PUTBACK; |
864dbfa3 | 1618 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1619 | POPSTACK; |
a60c0954 | 1620 | LEAVE; |
a3bcc51e | 1621 | |
463ee0b2 LW |
1622 | return 0; |
1623 | } | |
1624 | ||
1625 | int | |
864dbfa3 | 1626 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1627 | { |
27da23d5 | 1628 | dVAR; dSP; |
35a4481c | 1629 | const char * const meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1630 | |
1631 | ENTER; | |
a0d0e21e | 1632 | SAVETMPS; |
e788e7d3 | 1633 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1634 | PUSHMARK(SP); |
1635 | EXTEND(SP, 2); | |
33c27489 | 1636 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1637 | if (SvOK(key)) |
1638 | PUSHs(key); | |
1639 | PUTBACK; | |
1640 | ||
864dbfa3 | 1641 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1642 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1643 | |
d3acc0f7 | 1644 | POPSTACK; |
a0d0e21e LW |
1645 | FREETMPS; |
1646 | LEAVE; | |
79072805 LW |
1647 | return 0; |
1648 | } | |
1649 | ||
1650 | int | |
864dbfa3 | 1651 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1652 | { |
1653 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1654 | } |
a0d0e21e | 1655 | |
a3bcc51e TP |
1656 | SV * |
1657 | Perl_magic_scalarpack(pTHX_ HV *hv, MAGIC *mg) | |
1658 | { | |
27da23d5 | 1659 | dVAR; dSP; |
a3bcc51e | 1660 | SV *retval = &PL_sv_undef; |
8772537c AL |
1661 | SV * const tied = SvTIED_obj((SV*)hv, mg); |
1662 | HV * const pkg = SvSTASH((SV*)SvRV(tied)); | |
a3bcc51e TP |
1663 | |
1664 | if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) { | |
1665 | SV *key; | |
bfcb3514 | 1666 | if (HvEITER_get(hv)) |
a3bcc51e TP |
1667 | /* we are in an iteration so the hash cannot be empty */ |
1668 | return &PL_sv_yes; | |
1669 | /* no xhv_eiter so now use FIRSTKEY */ | |
1670 | key = sv_newmortal(); | |
1671 | magic_nextpack((SV*)hv, mg, key); | |
bfcb3514 | 1672 | HvEITER_set(hv, NULL); /* need to reset iterator */ |
a3bcc51e TP |
1673 | return SvOK(key) ? &PL_sv_yes : &PL_sv_no; |
1674 | } | |
1675 | ||
1676 | /* there is a SCALAR method that we can call */ | |
1677 | ENTER; | |
1678 | PUSHSTACKi(PERLSI_MAGIC); | |
1679 | PUSHMARK(SP); | |
1680 | EXTEND(SP, 1); | |
1681 | PUSHs(tied); | |
1682 | PUTBACK; | |
1683 | ||
1684 | if (call_method("SCALAR", G_SCALAR)) | |
1685 | retval = *PL_stack_sp--; | |
1686 | POPSTACK; | |
1687 | LEAVE; | |
1688 | return retval; | |
1689 | } | |
1690 | ||
a0d0e21e | 1691 | int |
864dbfa3 | 1692 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1693 | { |
8772537c AL |
1694 | GV * const gv = PL_DBline; |
1695 | const I32 i = SvTRUE(sv); | |
1696 | SV ** const svp = av_fetch(GvAV(gv), | |
01b8bcb7 | 1697 | atoi(MgPV_nolen_const(mg)), FALSE); |
8772537c AL |
1698 | if (svp && SvIOKp(*svp)) { |
1699 | OP * const o = INT2PTR(OP*,SvIVX(*svp)); | |
1700 | if (o) { | |
1701 | /* set or clear breakpoint in the relevant control op */ | |
1702 | if (i) | |
1703 | o->op_flags |= OPf_SPECIAL; | |
1704 | else | |
1705 | o->op_flags &= ~OPf_SPECIAL; | |
1706 | } | |
5df8de69 | 1707 | } |
79072805 LW |
1708 | return 0; |
1709 | } | |
1710 | ||
1711 | int | |
8772537c | 1712 | Perl_magic_getarylen(pTHX_ SV *sv, const MAGIC *mg) |
79072805 | 1713 | { |
8772537c | 1714 | const AV * const obj = (AV*)mg->mg_obj; |
83bf042f NC |
1715 | if (obj) { |
1716 | sv_setiv(sv, AvFILL(obj) + PL_curcop->cop_arybase); | |
1717 | } else { | |
1718 | SvOK_off(sv); | |
1719 | } | |
79072805 LW |
1720 | return 0; |
1721 | } | |
1722 | ||
1723 | int | |
864dbfa3 | 1724 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1725 | { |
8772537c | 1726 | AV * const obj = (AV*)mg->mg_obj; |
83bf042f NC |
1727 | if (obj) { |
1728 | av_fill(obj, SvIV(sv) - PL_curcop->cop_arybase); | |
1729 | } else { | |
1730 | if (ckWARN(WARN_MISC)) | |
1731 | Perl_warner(aTHX_ packWARN(WARN_MISC), | |
1732 | "Attempt to set length of freed array"); | |
1733 | } | |
1734 | return 0; | |
1735 | } | |
1736 | ||
1737 | int | |
1738 | Perl_magic_freearylen_p(pTHX_ SV *sv, MAGIC *mg) | |
1739 | { | |
53c1dcc0 | 1740 | PERL_UNUSED_ARG(sv); |
94f3782b DM |
1741 | /* during global destruction, mg_obj may already have been freed */ |
1742 | if (PL_in_clean_all) | |
1ea47f64 | 1743 | return 0; |
94f3782b | 1744 | |
83bf042f NC |
1745 | mg = mg_find (mg->mg_obj, PERL_MAGIC_arylen); |
1746 | ||
1747 | if (mg) { | |
1748 | /* arylen scalar holds a pointer back to the array, but doesn't own a | |
1749 | reference. Hence the we (the array) are about to go away with it | |
1750 | still pointing at us. Clear its pointer, else it would be pointing | |
1751 | at free memory. See the comment in sv_magic about reference loops, | |
1752 | and why it can't own a reference to us. */ | |
1753 | mg->mg_obj = 0; | |
1754 | } | |
a0d0e21e LW |
1755 | return 0; |
1756 | } | |
1757 | ||
1758 | int | |
864dbfa3 | 1759 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1760 | { |
8772537c | 1761 | SV* const lsv = LvTARG(sv); |
ac27b0f5 | 1762 | |
a0d0e21e | 1763 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1764 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1765 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1766 | I32 i = mg->mg_len; |
7e2040f0 | 1767 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1768 | sv_pos_b2u(lsv, &i); |
1769 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1770 | return 0; |
1771 | } | |
1772 | } | |
0c34ef67 | 1773 | SvOK_off(sv); |
a0d0e21e LW |
1774 | return 0; |
1775 | } | |
1776 | ||
1777 | int | |
864dbfa3 | 1778 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1779 | { |
8772537c | 1780 | SV* const lsv = LvTARG(sv); |
a0d0e21e LW |
1781 | SSize_t pos; |
1782 | STRLEN len; | |
c00206c8 | 1783 | STRLEN ulen = 0; |
a0d0e21e LW |
1784 | |
1785 | mg = 0; | |
ac27b0f5 | 1786 | |
a0d0e21e | 1787 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1788 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1789 | if (!mg) { |
1790 | if (!SvOK(sv)) | |
1791 | return 0; | |
fabdb6c0 | 1792 | sv_magic(lsv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
14befaf4 | 1793 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1794 | } |
1795 | else if (!SvOK(sv)) { | |
565764a8 | 1796 | mg->mg_len = -1; |
a0d0e21e LW |
1797 | return 0; |
1798 | } | |
1799 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1800 | ||
c485e607 | 1801 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1802 | |
7e2040f0 | 1803 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1804 | ulen = sv_len_utf8(lsv); |
1805 | if (ulen) | |
1806 | len = ulen; | |
a0ed51b3 LW |
1807 | } |
1808 | ||
a0d0e21e LW |
1809 | if (pos < 0) { |
1810 | pos += len; | |
1811 | if (pos < 0) | |
1812 | pos = 0; | |
1813 | } | |
eb160463 | 1814 | else if (pos > (SSize_t)len) |
a0d0e21e | 1815 | pos = len; |
a0ed51b3 LW |
1816 | |
1817 | if (ulen) { | |
1818 | I32 p = pos; | |
1819 | sv_pos_u2b(lsv, &p, 0); | |
1820 | pos = p; | |
1821 | } | |
727405f8 | 1822 | |
565764a8 | 1823 | mg->mg_len = pos; |
71be2cbc | 1824 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1825 | |
79072805 LW |
1826 | return 0; |
1827 | } | |
1828 | ||
1829 | int | |
864dbfa3 | 1830 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1831 | { |
8772537c | 1832 | PERL_UNUSED_ARG(mg); |
8646b087 | 1833 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1834 | SvFAKE_off(sv); | |
946ec16e | 1835 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1836 | SvFAKE_on(sv); |
1837 | } | |
1838 | else | |
946ec16e | 1839 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1840 | return 0; |
1841 | } | |
1842 | ||
1843 | int | |
864dbfa3 | 1844 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1845 | { |
79072805 | 1846 | GV* gv; |
8772537c AL |
1847 | PERL_UNUSED_ARG(mg); |
1848 | ||
79072805 LW |
1849 | if (!SvOK(sv)) |
1850 | return 0; | |
f776e3cd | 1851 | gv = gv_fetchsv(sv, GV_ADD, SVt_PVGV); |
79072805 LW |
1852 | if (sv == (SV*)gv) |
1853 | return 0; | |
1854 | if (GvGP(sv)) | |
88e89b8a | 1855 | gp_free((GV*)sv); |
79072805 | 1856 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1857 | return 0; |
1858 | } | |
1859 | ||
1860 | int | |
864dbfa3 | 1861 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1862 | { |
1863 | STRLEN len; | |
35a4481c | 1864 | SV * const lsv = LvTARG(sv); |
b83604b4 | 1865 | const char * const tmps = SvPV_const(lsv,len); |
6ff81951 GS |
1866 | I32 offs = LvTARGOFF(sv); |
1867 | I32 rem = LvTARGLEN(sv); | |
8772537c | 1868 | PERL_UNUSED_ARG(mg); |
6ff81951 | 1869 | |
9aa983d2 JH |
1870 | if (SvUTF8(lsv)) |
1871 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1872 | if (offs > (I32)len) |
6ff81951 | 1873 | offs = len; |
eb160463 | 1874 | if (rem + offs > (I32)len) |
6ff81951 GS |
1875 | rem = len - offs; |
1876 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1877 | if (SvUTF8(lsv)) |
2ef4b674 | 1878 | SvUTF8_on(sv); |
6ff81951 GS |
1879 | return 0; |
1880 | } | |
1881 | ||
1882 | int | |
864dbfa3 | 1883 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1884 | { |
9aa983d2 | 1885 | STRLEN len; |
b83604b4 | 1886 | const char *tmps = SvPV_const(sv, len); |
dd374669 | 1887 | SV * const lsv = LvTARG(sv); |
9aa983d2 JH |
1888 | I32 lvoff = LvTARGOFF(sv); |
1889 | I32 lvlen = LvTARGLEN(sv); | |
8772537c | 1890 | PERL_UNUSED_ARG(mg); |
075a4a2b | 1891 | |
1aa99e6b | 1892 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1893 | sv_utf8_upgrade(lsv); |
1894 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1895 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
b76f3ce2 | 1896 | LvTARGLEN(sv) = sv_len_utf8(sv); |
9aa983d2 JH |
1897 | SvUTF8_on(lsv); |
1898 | } | |
9bf12eaf | 1899 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1900 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
b76f3ce2 | 1901 | LvTARGLEN(sv) = len; |
e95af362 | 1902 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1903 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1904 | Safefree(tmps); | |
1aa99e6b | 1905 | } |
b76f3ce2 GB |
1906 | else { |
1907 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1908 | LvTARGLEN(sv) = len; | |
1909 | } | |
1910 | ||
1aa99e6b | 1911 | |
79072805 LW |
1912 | return 0; |
1913 | } | |
1914 | ||
1915 | int | |
864dbfa3 | 1916 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1917 | { |
8772537c | 1918 | PERL_UNUSED_ARG(sv); |
27cc343c | 1919 | TAINT_IF((PL_localizing != 1) && (mg->mg_len & 1)); |
463ee0b2 LW |
1920 | return 0; |
1921 | } | |
1922 | ||
1923 | int | |
864dbfa3 | 1924 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1925 | { |
8772537c | 1926 | PERL_UNUSED_ARG(sv); |
0a9c116b DM |
1927 | /* update taint status unless we're restoring at scope exit */ |
1928 | if (PL_localizing != 2) { | |
1929 | if (PL_tainted) | |
1930 | mg->mg_len |= 1; | |
1931 | else | |
1932 | mg->mg_len &= ~1; | |
1933 | } | |
463ee0b2 LW |
1934 | return 0; |
1935 | } | |
1936 | ||
1937 | int | |
864dbfa3 | 1938 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1939 | { |
35a4481c | 1940 | SV * const lsv = LvTARG(sv); |
8772537c | 1941 | PERL_UNUSED_ARG(mg); |
6ff81951 GS |
1942 | |
1943 | if (!lsv) { | |
0c34ef67 | 1944 | SvOK_off(sv); |
6ff81951 GS |
1945 | return 0; |
1946 | } | |
6ff81951 | 1947 | |
81e118e0 | 1948 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1949 | return 0; |
1950 | } | |
1951 | ||
1952 | int | |
864dbfa3 | 1953 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1954 | { |
8772537c | 1955 | PERL_UNUSED_ARG(mg); |
79072805 LW |
1956 | do_vecset(sv); /* XXX slurp this routine */ |
1957 | return 0; | |
1958 | } | |
1959 | ||
1960 | int | |
864dbfa3 | 1961 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1962 | { |
71be2cbc | 1963 | SV *targ = Nullsv; |
5f05dabc | 1964 | if (LvTARGLEN(sv)) { |
68dc0745 | 1965 | if (mg->mg_obj) { |
8772537c AL |
1966 | SV * const ahv = LvTARG(sv); |
1967 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
6d822dc4 MS |
1968 | if (he) |
1969 | targ = HeVAL(he); | |
68dc0745 | 1970 | } |
1971 | else { | |
8772537c | 1972 | AV* const av = (AV*)LvTARG(sv); |
68dc0745 | 1973 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1974 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1975 | } | |
3280af22 | 1976 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1977 | /* somebody else defined it for us */ |
1978 | SvREFCNT_dec(LvTARG(sv)); | |
1979 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1980 | LvTARGLEN(sv) = 0; | |
1981 | SvREFCNT_dec(mg->mg_obj); | |
1982 | mg->mg_obj = Nullsv; | |
1983 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1984 | } | |
5f05dabc | 1985 | } |
71be2cbc | 1986 | else |
1987 | targ = LvTARG(sv); | |
3280af22 | 1988 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1989 | return 0; |
1990 | } | |
1991 | ||
1992 | int | |
864dbfa3 | 1993 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1994 | { |
8772537c | 1995 | PERL_UNUSED_ARG(mg); |
71be2cbc | 1996 | if (LvTARGLEN(sv)) |
68dc0745 | 1997 | vivify_defelem(sv); |
1998 | if (LvTARG(sv)) { | |
5f05dabc | 1999 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 2000 | SvSETMAGIC(LvTARG(sv)); |
2001 | } | |
5f05dabc | 2002 | return 0; |
2003 | } | |
2004 | ||
71be2cbc | 2005 | void |
864dbfa3 | 2006 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 2007 | { |
74e13ce4 GS |
2008 | MAGIC *mg; |
2009 | SV *value = Nullsv; | |
71be2cbc | 2010 | |
14befaf4 | 2011 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 2012 | return; |
68dc0745 | 2013 | if (mg->mg_obj) { |
8772537c AL |
2014 | SV * const ahv = LvTARG(sv); |
2015 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); | |
6d822dc4 MS |
2016 | if (he) |
2017 | value = HeVAL(he); | |
3280af22 | 2018 | if (!value || value == &PL_sv_undef) |
ce5030a2 | 2019 | Perl_croak(aTHX_ PL_no_helem_sv, mg->mg_obj); |
71be2cbc | 2020 | } |
68dc0745 | 2021 | else { |
8772537c | 2022 | AV* const av = (AV*)LvTARG(sv); |
5aabfad6 | 2023 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 2024 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
2025 | else { | |
aec46f14 | 2026 | SV** const svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 | 2027 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 2028 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 2029 | } |
2030 | } | |
3e3baf6d | 2031 | (void)SvREFCNT_inc(value); |
68dc0745 | 2032 | SvREFCNT_dec(LvTARG(sv)); |
2033 | LvTARG(sv) = value; | |
71be2cbc | 2034 | LvTARGLEN(sv) = 0; |
68dc0745 | 2035 | SvREFCNT_dec(mg->mg_obj); |
2036 | mg->mg_obj = Nullsv; | |
2037 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 2038 | } |
2039 | ||
2040 | int | |
864dbfa3 | 2041 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 | 2042 | { |
86f55936 | 2043 | return Perl_sv_kill_backrefs(aTHX_ sv, (AV*)mg->mg_obj); |
810b8aa5 GS |
2044 | } |
2045 | ||
2046 | int | |
864dbfa3 | 2047 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 2048 | { |
565764a8 | 2049 | mg->mg_len = -1; |
c6496cc7 | 2050 | SvSCREAM_off(sv); |
93a17b20 LW |
2051 | return 0; |
2052 | } | |
2053 | ||
2054 | int | |
864dbfa3 | 2055 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2056 | { |
8772537c | 2057 | PERL_UNUSED_ARG(mg); |
14befaf4 | 2058 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
2059 | SvVALID_off(sv); |
2060 | return 0; | |
2061 | } | |
2062 | ||
2063 | int | |
864dbfa3 | 2064 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 2065 | { |
8772537c | 2066 | PERL_UNUSED_ARG(mg); |
14befaf4 | 2067 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 2068 | SvCOMPILED_off(sv); |
2069 | return 0; | |
2070 | } | |
2071 | ||
2072 | int | |
864dbfa3 | 2073 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2074 | { |
35a4481c | 2075 | const struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
2076 | |
2077 | if (uf && uf->uf_set) | |
24f81a43 | 2078 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
2079 | return 0; |
2080 | } | |
2081 | ||
c277df42 | 2082 | int |
faf82a0b AE |
2083 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
2084 | { | |
8772537c | 2085 | PERL_UNUSED_ARG(mg); |
faf82a0b AE |
2086 | sv_unmagic(sv, PERL_MAGIC_qr); |
2087 | return 0; | |
2088 | } | |
2089 | ||
2090 | int | |
864dbfa3 | 2091 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 | 2092 | { |
8772537c AL |
2093 | regexp * const re = (regexp *)mg->mg_obj; |
2094 | PERL_UNUSED_ARG(sv); | |
2095 | ||
c277df42 IZ |
2096 | ReREFCNT_dec(re); |
2097 | return 0; | |
2098 | } | |
2099 | ||
7a4c00b4 | 2100 | #ifdef USE_LOCALE_COLLATE |
79072805 | 2101 | int |
864dbfa3 | 2102 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 2103 | { |
2104 | /* | |
838b5b74 | 2105 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 2106 | * and vanished with a faint plop. |
2107 | */ | |
8772537c | 2108 | PERL_UNUSED_ARG(sv); |
7a4c00b4 | 2109 | if (mg->mg_ptr) { |
2110 | Safefree(mg->mg_ptr); | |
2111 | mg->mg_ptr = NULL; | |
565764a8 | 2112 | mg->mg_len = -1; |
7a4c00b4 | 2113 | } |
bbce6d69 | 2114 | return 0; |
2115 | } | |
7a4c00b4 | 2116 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 2117 | |
7e8c5dac HS |
2118 | /* Just clear the UTF-8 cache data. */ |
2119 | int | |
2120 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
2121 | { | |
8772537c | 2122 | PERL_UNUSED_ARG(sv); |
7e8c5dac HS |
2123 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
2124 | mg->mg_ptr = 0; | |
2125 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
2126 | return 0; | |
2127 | } | |
2128 | ||
bbce6d69 | 2129 | int |
864dbfa3 | 2130 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2131 | { |
e1ec3a88 | 2132 | register const char *s; |
79072805 | 2133 | I32 i; |
8990e307 | 2134 | STRLEN len; |
79072805 | 2135 | switch (*mg->mg_ptr) { |
748a9306 | 2136 | case '\001': /* ^A */ |
3280af22 | 2137 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 2138 | break; |
49460fe6 | 2139 | case '\003': /* ^C */ |
eb160463 | 2140 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
2141 | break; |
2142 | ||
79072805 | 2143 | case '\004': /* ^D */ |
b4ab917c | 2144 | #ifdef DEBUGGING |
b83604b4 | 2145 | s = SvPV_nolen_const(sv); |
ddcf8bc1 | 2146 | PL_debug = get_debug_opts(&s, 0) | DEBUG_TOP_FLAG; |
79072805 | 2147 | DEBUG_x(dump_all()); |
b4ab917c DM |
2148 | #else |
2149 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
2150 | #endif | |
79072805 | 2151 | break; |
28f23441 | 2152 | case '\005': /* ^E */ |
d0063567 | 2153 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2154 | #ifdef MACOS_TRADITIONAL |
d0063567 | 2155 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2156 | #else |
cd39f2b6 | 2157 | # ifdef VMS |
d0063567 | 2158 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2159 | # else |
cd39f2b6 | 2160 | # ifdef WIN32 |
d0063567 | 2161 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2162 | # else |
9fed8b87 | 2163 | # ifdef OS2 |
d0063567 | 2164 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2165 | # else |
d0063567 DK |
2166 | /* will anyone ever use this? */ |
2167 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2168 | # endif |
048c1ddf IZ |
2169 | # endif |
2170 | # endif | |
22fae026 | 2171 | #endif |
d0063567 DK |
2172 | } |
2173 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2174 | if (PL_encoding) | |
2175 | SvREFCNT_dec(PL_encoding); | |
2176 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2177 | PL_encoding = newSVsv(sv); | |
2178 | } | |
2179 | else { | |
2180 | PL_encoding = Nullsv; | |
2181 | } | |
2182 | } | |
2183 | break; | |
79072805 | 2184 | case '\006': /* ^F */ |
3280af22 | 2185 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2186 | break; |
a0d0e21e | 2187 | case '\010': /* ^H */ |
3280af22 | 2188 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2189 | break; |
9d116dd7 | 2190 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
43c5f42d NC |
2191 | Safefree(PL_inplace); |
2192 | PL_inplace = SvOK(sv) ? savesvpv(sv) : Nullch; | |
da78da6e | 2193 | break; |
28f23441 | 2194 | case '\017': /* ^O */ |
ac27b0f5 | 2195 | if (*(mg->mg_ptr+1) == '\0') { |
43c5f42d NC |
2196 | Safefree(PL_osname); |
2197 | PL_osname = Nullch; | |
3511154c DM |
2198 | if (SvOK(sv)) { |
2199 | TAINT_PROPER("assigning to $^O"); | |
2e0de35c | 2200 | PL_osname = savesvpv(sv); |
3511154c | 2201 | } |
ac27b0f5 NIS |
2202 | } |
2203 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2204 | if (!PL_compiling.cop_io) | |
2205 | PL_compiling.cop_io = newSVsv(sv); | |
2206 | else | |
2207 | sv_setsv(PL_compiling.cop_io,sv); | |
2208 | } | |
28f23441 | 2209 | break; |
79072805 | 2210 | case '\020': /* ^P */ |
3280af22 | 2211 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
f2a7f298 | 2212 | if (PL_perldb && !PL_DBsingle) |
1ee4443e | 2213 | init_debugger(); |
79072805 LW |
2214 | break; |
2215 | case '\024': /* ^T */ | |
88e89b8a | 2216 | #ifdef BIG_TIME |
6b88bc9c | 2217 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2218 | #else |
3280af22 | 2219 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2220 | #endif |
79072805 | 2221 | break; |
fde18df1 | 2222 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2223 | if (*(mg->mg_ptr+1) == '\0') { |
2224 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2225 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2226 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2227 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2228 | } |
599cee73 | 2229 | } |
0a378802 | 2230 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2231 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2232 | if (!SvPOK(sv) && PL_localizing) { |
2233 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2234 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2235 | break; |
2236 | } | |
f4fc7782 | 2237 | { |
b5477537 | 2238 | STRLEN len, i; |
d3a7d8c7 | 2239 | int accumulate = 0 ; |
f4fc7782 | 2240 | int any_fatals = 0 ; |
b83604b4 | 2241 | const char * const ptr = SvPV_const(sv, len) ; |
f4fc7782 JH |
2242 | for (i = 0 ; i < len ; ++i) { |
2243 | accumulate |= ptr[i] ; | |
2244 | any_fatals |= (ptr[i] & 0xAA) ; | |
2245 | } | |
d3a7d8c7 GS |
2246 | if (!accumulate) |
2247 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2248 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2249 | PL_compiling.cop_warnings = pWARN_ALL; | |
2250 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2251 | } |
d3a7d8c7 GS |
2252 | else { |
2253 | if (specialWARN(PL_compiling.cop_warnings)) | |
2254 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2255 | else | |
2256 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2257 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2258 | PL_dowarn |= G_WARN_ONCE ; | |
2259 | } | |
f4fc7782 | 2260 | |
d3a7d8c7 | 2261 | } |
4438c4b7 | 2262 | } |
971a9dd3 | 2263 | } |
79072805 LW |
2264 | break; |
2265 | case '.': | |
3280af22 NIS |
2266 | if (PL_localizing) { |
2267 | if (PL_localizing == 1) | |
7766f137 | 2268 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2269 | } |
3280af22 | 2270 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2271 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2272 | break; |
2273 | case '^': | |
3280af22 | 2274 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2275 | s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
f776e3cd | 2276 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO); |
79072805 LW |
2277 | break; |
2278 | case '~': | |
3280af22 | 2279 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2280 | s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
f776e3cd | 2281 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO); |
79072805 LW |
2282 | break; |
2283 | case '=': | |
632db599 | 2284 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2285 | break; |
2286 | case '-': | |
632db599 | 2287 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2288 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2289 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2290 | break; |
2291 | case '%': | |
632db599 | 2292 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2293 | break; |
2294 | case '|': | |
4b65379b | 2295 | { |
8772537c | 2296 | IO * const io = GvIOp(PL_defoutgv); |
720f287d AB |
2297 | if(!io) |
2298 | break; | |
4b65379b CS |
2299 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2300 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2301 | else { | |
2302 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2303 | PerlIO *ofp = IoOFP(io); | |
2304 | if (ofp) | |
2305 | (void)PerlIO_flush(ofp); | |
2306 | IoFLAGS(io) |= IOf_FLUSH; | |
2307 | } | |
2308 | } | |
79072805 LW |
2309 | } |
2310 | break; | |
79072805 | 2311 | case '/': |
3280af22 | 2312 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2313 | PL_rs = newSVsv(sv); |
79072805 LW |
2314 | break; |
2315 | case '\\': | |
7889fe52 NIS |
2316 | if (PL_ors_sv) |
2317 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2318 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2319 | PL_ors_sv = newSVsv(sv); |
009c130f | 2320 | } |
e3c19b7b | 2321 | else { |
7889fe52 | 2322 | PL_ors_sv = Nullsv; |
e3c19b7b | 2323 | } |
79072805 LW |
2324 | break; |
2325 | case ',': | |
7889fe52 NIS |
2326 | if (PL_ofs_sv) |
2327 | SvREFCNT_dec(PL_ofs_sv); | |
2328 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2329 | PL_ofs_sv = newSVsv(sv); | |
2330 | } | |
2331 | else { | |
2332 | PL_ofs_sv = Nullsv; | |
2333 | } | |
79072805 | 2334 | break; |
79072805 | 2335 | case '[': |
3280af22 | 2336 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2337 | break; |
2338 | case '?': | |
ff0cee69 | 2339 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2340 | if (PL_localizing == 2) { |
2341 | PL_statusvalue = LvTARGOFF(sv); | |
2342 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2343 | } |
2344 | else | |
2345 | #endif | |
2346 | #ifdef VMSISH_STATUS | |
2347 | if (VMSISH_STATUS) | |
fb38d079 | 2348 | STATUS_NATIVE_CHILD_SET((U32)SvIV(sv)); |
ff0cee69 | 2349 | else |
2350 | #endif | |
fb38d079 | 2351 | STATUS_UNIX_EXIT_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2352 | break; |
2353 | case '!': | |
93189314 JH |
2354 | { |
2355 | #ifdef VMS | |
2356 | # define PERL_VMS_BANG vaxc$errno | |
2357 | #else | |
2358 | # define PERL_VMS_BANG 0 | |
2359 | #endif | |
91487cfc | 2360 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2361 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2362 | } | |
79072805 LW |
2363 | break; |
2364 | case '<': | |
3280af22 NIS |
2365 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2366 | if (PL_delaymagic) { | |
2367 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2368 | break; /* don't do magic till later */ |
2369 | } | |
2370 | #ifdef HAS_SETRUID | |
b28d0864 | 2371 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2372 | #else |
2373 | #ifdef HAS_SETREUID | |
3280af22 | 2374 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2375 | #else |
85e6fe83 | 2376 | #ifdef HAS_SETRESUID |
b28d0864 | 2377 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2378 | #else |
75870ed3 | 2379 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2380 | #ifdef PERL_DARWIN | |
2381 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2382 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2383 | (void)PerlProc_setuid(0); | |
2384 | #endif | |
b28d0864 | 2385 | (void)PerlProc_setuid(PL_uid); |
75870ed3 | 2386 | } else { |
d8eceb89 | 2387 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2388 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2389 | } |
79072805 LW |
2390 | #endif |
2391 | #endif | |
85e6fe83 | 2392 | #endif |
d8eceb89 | 2393 | PL_uid = PerlProc_getuid(); |
3280af22 | 2394 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2395 | break; |
2396 | case '>': | |
3280af22 NIS |
2397 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2398 | if (PL_delaymagic) { | |
2399 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2400 | break; /* don't do magic till later */ |
2401 | } | |
2402 | #ifdef HAS_SETEUID | |
3280af22 | 2403 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2404 | #else |
2405 | #ifdef HAS_SETREUID | |
b28d0864 | 2406 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2407 | #else |
2408 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2409 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2410 | #else |
b28d0864 NIS |
2411 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2412 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2413 | else { |
e8ee3774 | 2414 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2415 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2416 | } |
79072805 LW |
2417 | #endif |
2418 | #endif | |
85e6fe83 | 2419 | #endif |
d8eceb89 | 2420 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2421 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2422 | break; |
2423 | case '(': | |
3280af22 NIS |
2424 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2425 | if (PL_delaymagic) { | |
2426 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2427 | break; /* don't do magic till later */ |
2428 | } | |
2429 | #ifdef HAS_SETRGID | |
b28d0864 | 2430 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2431 | #else |
2432 | #ifdef HAS_SETREGID | |
3280af22 | 2433 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2434 | #else |
2435 | #ifdef HAS_SETRESGID | |
b28d0864 | 2436 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2437 | #else |
b28d0864 NIS |
2438 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2439 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2440 | else { |
d8eceb89 | 2441 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2442 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2443 | } |
79072805 LW |
2444 | #endif |
2445 | #endif | |
85e6fe83 | 2446 | #endif |
d8eceb89 | 2447 | PL_gid = PerlProc_getgid(); |
3280af22 | 2448 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2449 | break; |
2450 | case ')': | |
5cd24f17 | 2451 | #ifdef HAS_SETGROUPS |
2452 | { | |
b83604b4 | 2453 | const char *p = SvPV_const(sv, len); |
757f63d8 SP |
2454 | Groups_t *gary = NULL; |
2455 | ||
2456 | while (isSPACE(*p)) | |
2457 | ++p; | |
2458 | PL_egid = Atol(p); | |
2459 | for (i = 0; i < NGROUPS; ++i) { | |
2460 | while (*p && !isSPACE(*p)) | |
2461 | ++p; | |
2462 | while (isSPACE(*p)) | |
2463 | ++p; | |
2464 | if (!*p) | |
2465 | break; | |
2466 | if(!gary) | |
2467 | Newx(gary, i + 1, Groups_t); | |
2468 | else | |
2469 | Renew(gary, i + 1, Groups_t); | |
2470 | gary[i] = Atol(p); | |
2471 | } | |
2472 | if (i) | |
2473 | (void)setgroups(i, gary); | |
2474 | if (gary) | |
2475 | Safefree(gary); | |
5cd24f17 | 2476 | } |
2477 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2478 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2479 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2480 | if (PL_delaymagic) { |
2481 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2482 | break; /* don't do magic till later */ |
2483 | } | |
2484 | #ifdef HAS_SETEGID | |
3280af22 | 2485 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2486 | #else |
2487 | #ifdef HAS_SETREGID | |
b28d0864 | 2488 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2489 | #else |
2490 | #ifdef HAS_SETRESGID | |
b28d0864 | 2491 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2492 | #else |
b28d0864 NIS |
2493 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2494 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2495 | else { |
d8eceb89 | 2496 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2497 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2498 | } |
79072805 LW |
2499 | #endif |
2500 | #endif | |
85e6fe83 | 2501 | #endif |
d8eceb89 | 2502 | PL_egid = PerlProc_getegid(); |
3280af22 | 2503 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2504 | break; |
2505 | case ':': | |
2d8e6c8d | 2506 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2507 | break; |
cd39f2b6 | 2508 | #ifndef MACOS_TRADITIONAL |
79072805 | 2509 | case '0': |
e2975953 | 2510 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2511 | #ifdef HAS_SETPROCTITLE |
2512 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2513 | * show a string from the process struct and provide | |
2514 | * the setproctitle() routine to manipulate that. */ | |
2515 | { | |
b83604b4 | 2516 | s = SvPV_const(sv, len); |
98b76f99 | 2517 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2518 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2519 | * but not the "(perl) suffix from the ps(1) |
2520 | * output, because that's what ps(1) shows if the | |
2521 | * argv[] is modified. */ | |
6f2ad931 | 2522 | setproctitle("-%s", s); |
9aad2c0e | 2523 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2524 | /* This doesn't really work if you assume that |
2525 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2526 | * because in ps(1) output the result will be like | |
2527 | * sprintf("perl: %s (perl)", s) | |
2528 | * I guess this is a security feature: | |
2529 | * one (a user process) cannot get rid of the original name. | |
2530 | * --jhi */ | |
2531 | setproctitle("%s", s); | |
2532 | # endif | |
2533 | } | |
2534 | #endif | |
17aa7f3d JH |
2535 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2536 | { | |
2537 | union pstun un; | |
b83604b4 | 2538 | s = SvPV_const(sv, len); |
6867be6d | 2539 | un.pst_command = (char *)s; |
17aa7f3d JH |
2540 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2541 | } | |
2542 | #endif | |
3cb9023d | 2543 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2544 | s = SvPV_force(sv,len); |
6f698202 AMS |
2545 | if (len >= (STRLEN)PL_origalen-1) { |
2546 | /* Longer than original, will be truncated. We assume that | |
2547 | * PL_origalen bytes are available. */ | |
2548 | Copy(s, PL_origargv[0], PL_origalen-1, char); | |
79072805 LW |
2549 | } |
2550 | else { | |
54bfe034 JH |
2551 | /* Shorter than original, will be padded. */ |
2552 | Copy(s, PL_origargv[0], len, char); | |
2553 | PL_origargv[0][len] = 0; | |
2554 | memset(PL_origargv[0] + len + 1, | |
2555 | /* Is the space counterintuitive? Yes. | |
2556 | * (You were expecting \0?) | |
3cb9023d | 2557 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 JH |
2558 | * --jhi */ |
2559 | (int)' ', | |
2560 | PL_origalen - len - 1); | |
79072805 | 2561 | } |
ad7eccf4 JD |
2562 | PL_origargv[0][PL_origalen-1] = 0; |
2563 | for (i = 1; i < PL_origargc; i++) | |
2564 | PL_origargv[i] = 0; | |
e2975953 | 2565 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2566 | break; |
cd39f2b6 | 2567 | #endif |
79072805 LW |
2568 | } |
2569 | return 0; | |
2570 | } | |
2571 | ||
2572 | I32 | |
35a4481c | 2573 | Perl_whichsig(pTHX_ const char *sig) |
79072805 | 2574 | { |
aadb217d | 2575 | register char* const* sigv; |
79072805 | 2576 | |
aadb217d | 2577 | for (sigv = (char* const*)PL_sig_name; *sigv; sigv++) |
79072805 | 2578 | if (strEQ(sig,*sigv)) |
aadb217d | 2579 | return PL_sig_num[sigv - (char* const*)PL_sig_name]; |
79072805 LW |
2580 | #ifdef SIGCLD |
2581 | if (strEQ(sig,"CHLD")) | |
2582 | return SIGCLD; | |
2583 | #endif | |
2584 | #ifdef SIGCHLD | |
2585 | if (strEQ(sig,"CLD")) | |
2586 | return SIGCHLD; | |
2587 | #endif | |
7f1236c0 | 2588 | return -1; |
79072805 LW |
2589 | } |
2590 | ||
ecfc5424 | 2591 | Signal_t |
1e82f5a6 | 2592 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
8aad04aa | 2593 | Perl_sighandler(int sig, ...) |
1e82f5a6 SH |
2594 | #else |
2595 | Perl_sighandler(int sig) | |
2596 | #endif | |
79072805 | 2597 | { |
1018e26f NIS |
2598 | #ifdef PERL_GET_SIG_CONTEXT |
2599 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2600 | #else |
cea2e8a9 | 2601 | dTHX; |
71d280e3 | 2602 | #endif |
79072805 | 2603 | dSP; |
00d579c5 | 2604 | GV *gv = Nullgv; |
8772537c AL |
2605 | SV *sv = Nullsv; |
2606 | SV * const tSv = PL_Sv; | |
00d579c5 | 2607 | CV *cv = Nullcv; |
533c011a | 2608 | OP *myop = PL_op; |
84902520 | 2609 | U32 flags = 0; |
8772537c | 2610 | XPV * const tXpv = PL_Xpv; |
71d280e3 | 2611 | |
3280af22 | 2612 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2613 | flags |= 1; |
3280af22 | 2614 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2615 | flags |= 4; |
3280af22 | 2616 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2617 | flags |= 16; |
2618 | ||
727405f8 | 2619 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2620 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2621 | PL_sig_name[sig]); |
2622 | exit(sig); | |
2623 | } | |
ff0cee69 | 2624 | |
84902520 TB |
2625 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2626 | infinity, so we fix 4 (in fact 5): */ | |
2627 | if (flags & 1) { | |
3280af22 | 2628 | PL_savestack_ix += 5; /* Protect save in progress. */ |
8772537c | 2629 | SAVEDESTRUCTOR_X(S_unwind_handler_stack, (void*)&flags); |
84902520 | 2630 | } |
ac27b0f5 | 2631 | if (flags & 4) |
3280af22 | 2632 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2633 | if (flags & 16) |
3280af22 | 2634 | PL_scopestack_ix += 1; |
84902520 | 2635 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2636 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
8772537c AL |
2637 | || SvTYPE(cv) != SVt_PVCV) { |
2638 | HV *st; | |
f2c0649b | 2639 | cv = sv_2cv(PL_psig_ptr[sig], &st, &gv, GV_ADD); |
8772537c | 2640 | } |
84902520 | 2641 | |
a0d0e21e | 2642 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2643 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2644 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2645 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2646 | : ((cv && CvGV(cv)) |
2647 | ? GvENAME(CvGV(cv)) | |
2648 | : "__ANON__"))); | |
2649 | goto cleanup; | |
79072805 LW |
2650 | } |
2651 | ||
22c35a8c GS |
2652 | if(PL_psig_name[sig]) { |
2653 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2654 | flags |= 64; |
df3728a2 | 2655 | #if !defined(PERL_IMPLICIT_CONTEXT) |
27da23d5 | 2656 | PL_sig_sv = sv; |
df3728a2 | 2657 | #endif |
84902520 | 2658 | } else { |
ff0cee69 | 2659 | sv = sv_newmortal(); |
22c35a8c | 2660 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2661 | } |
e336de0d | 2662 | |
e788e7d3 | 2663 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2664 | PUSHMARK(SP); |
79072805 | 2665 | PUSHs(sv); |
8aad04aa JH |
2666 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
2667 | { | |
2668 | struct sigaction oact; | |
2669 | ||
2670 | if (sigaction(sig, 0, &oact) == 0 && oact.sa_flags & SA_SIGINFO) { | |
2671 | siginfo_t *sip; | |
2672 | va_list args; | |
2673 | ||
2674 | va_start(args, sig); | |
2675 | sip = (siginfo_t*)va_arg(args, siginfo_t*); | |
2676 | if (sip) { | |
2677 | HV *sih = newHV(); | |
2678 | SV *rv = newRV_noinc((SV*)sih); | |
2679 | /* The siginfo fields signo, code, errno, pid, uid, | |
2680 | * addr, status, and band are defined by POSIX/SUSv3. */ | |
2681 | hv_store(sih, "signo", 5, newSViv(sip->si_signo), 0); | |
2682 | hv_store(sih, "code", 4, newSViv(sip->si_code), 0); | |
79dec0f4 | 2683 | #if 0 /* XXX TODO: Configure scan for the existence of these, but even that does not help if the SA_SIGINFO is not implemented according to the spec. */ |
ea1bde16 | 2684 | hv_store(sih, "errno", 5, newSViv(sip->si_errno), 0); |
79dec0f4 | 2685 | hv_store(sih, "status", 6, newSViv(sip->si_status), 0); |
8aad04aa JH |
2686 | hv_store(sih, "uid", 3, newSViv(sip->si_uid), 0); |
2687 | hv_store(sih, "pid", 3, newSViv(sip->si_pid), 0); | |
2688 | hv_store(sih, "addr", 4, newSVuv(PTR2UV(sip->si_addr)), 0); | |
8aad04aa | 2689 | hv_store(sih, "band", 4, newSViv(sip->si_band), 0); |
79dec0f4 | 2690 | #endif |
8aad04aa JH |
2691 | EXTEND(SP, 2); |
2692 | PUSHs((SV*)rv); | |
2693 | PUSHs(newSVpv((void*)sip, sizeof(*sip))); | |
2694 | } | |
b4552a27 | 2695 | |
31427afe | 2696 | va_end(args); |
8aad04aa JH |
2697 | } |
2698 | } | |
2699 | #endif | |
79072805 | 2700 | PUTBACK; |
a0d0e21e | 2701 | |
1b266415 | 2702 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2703 | |
d3acc0f7 | 2704 | POPSTACK; |
1b266415 | 2705 | if (SvTRUE(ERRSV)) { |
1d615522 | 2706 | #ifndef PERL_MICRO |
983dbef6 | 2707 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2708 | /* Handler "died", for example to get out of a restart-able read(). |
2709 | * Before we re-do that on its behalf re-enable the signal which was | |
2710 | * blocked by the system when we entered. | |
2711 | */ | |
2712 | sigset_t set; | |
2713 | sigemptyset(&set); | |
2714 | sigaddset(&set,sig); | |
2715 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2716 | #else | |
2717 | /* Not clear if this will work */ | |
2718 | (void)rsignal(sig, SIG_IGN); | |
5c1546dc | 2719 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2720 | #endif |
1d615522 | 2721 | #endif /* !PERL_MICRO */ |
c3bdd826 | 2722 | Perl_die(aTHX_ Nullch); |
1b266415 | 2723 | } |
00d579c5 | 2724 | cleanup: |
84902520 | 2725 | if (flags & 1) |
3280af22 | 2726 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2727 | if (flags & 4) |
3280af22 | 2728 | PL_markstack_ptr--; |
84902520 | 2729 | if (flags & 16) |
3280af22 | 2730 | PL_scopestack_ix -= 1; |
84902520 TB |
2731 | if (flags & 64) |
2732 | SvREFCNT_dec(sv); | |
533c011a | 2733 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2734 | |
3280af22 NIS |
2735 | PL_Sv = tSv; /* Restore global temporaries. */ |
2736 | PL_Xpv = tXpv; | |
53bb94e2 | 2737 | return; |
79072805 | 2738 | } |
4e35701f NIS |
2739 | |
2740 | ||
51371543 | 2741 | static void |
8772537c | 2742 | S_restore_magic(pTHX_ const void *p) |
51371543 | 2743 | { |
8772537c AL |
2744 | MGS* const mgs = SSPTR(PTR2IV(p), MGS*); |
2745 | SV* const sv = mgs->mgs_sv; | |
51371543 GS |
2746 | |
2747 | if (!sv) | |
2748 | return; | |
2749 | ||
2750 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2751 | { | |
f8c7b90f | 2752 | #ifdef PERL_OLD_COPY_ON_WRITE |
f9701176 NC |
2753 | /* While magic was saved (and off) sv_setsv may well have seen |
2754 | this SV as a prime candidate for COW. */ | |
2755 | if (SvIsCOW(sv)) | |
e424a81e | 2756 | sv_force_normal_flags(sv, 0); |
f9701176 NC |
2757 | #endif |
2758 | ||
51371543 GS |
2759 | if (mgs->mgs_flags) |
2760 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2761 | else | |
2762 | mg_magical(sv); | |
2b77b520 YST |
2763 | if (SvGMAGICAL(sv)) { |
2764 | /* downgrade public flags to private, | |
2765 | and discard any other private flags */ | |
2766 | ||
2767 | U32 public = SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK); | |
2768 | if (public) { | |
2769 | SvFLAGS(sv) &= ~( public | SVp_IOK|SVp_NOK|SVp_POK ); | |
2770 | SvFLAGS(sv) |= ( public << PRIVSHIFT ); | |
2771 | } | |
2772 | } | |
51371543 GS |
2773 | } |
2774 | ||
2775 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2776 | ||
2777 | /* If we're still on top of the stack, pop us off. (That condition | |
2778 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2779 | * if it's being called via leave_scope.) | |
2780 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2781 | * may leave alloc gunk on the savestack, and some code | |
2782 | * (e.g. sighandler) doesn't expect that... | |
2783 | */ | |
2784 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2785 | { | |
2786 | I32 popval = SSPOPINT; | |
c76ac1ee | 2787 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2788 | PL_savestack_ix -= 2; |
2789 | popval = SSPOPINT; | |
2790 | assert(popval == SAVEt_ALLOC); | |
2791 | popval = SSPOPINT; | |
2792 | PL_savestack_ix -= popval; | |
2793 | } | |
2794 | ||
2795 | } | |
2796 | ||
2797 | static void | |
8772537c | 2798 | S_unwind_handler_stack(pTHX_ const void *p) |
51371543 | 2799 | { |
27da23d5 | 2800 | dVAR; |
e1ec3a88 | 2801 | const U32 flags = *(const U32*)p; |
51371543 GS |
2802 | |
2803 | if (flags & 1) | |
2804 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
df3728a2 | 2805 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 | 2806 | if (flags & 64) |
27da23d5 | 2807 | SvREFCNT_dec(PL_sig_sv); |
df3728a2 | 2808 | #endif |
51371543 | 2809 | } |
1018e26f | 2810 | |
66610fdd RGS |
2811 | /* |
2812 | * Local variables: | |
2813 | * c-indentation-style: bsd | |
2814 | * c-basic-offset: 4 | |
2815 | * indent-tabs-mode: t | |
2816 | * End: | |
2817 | * | |
37442d52 RGS |
2818 | * ex: set ts=8 sts=4 sw=4 noet: |
2819 | */ |