Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
bc89e66f | 3 | * Copyright (c) 1991-2001, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
864dbfa3 | 16 | #define PERL_IN_MG_C |
79072805 LW |
17 | #include "perl.h" |
18 | ||
5cd24f17 | 19 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
20 | # ifndef NGROUPS |
21 | # define NGROUPS 32 | |
22 | # endif | |
23 | #endif | |
24 | ||
51371543 GS |
25 | static void restore_magic(pTHXo_ void *p); |
26 | static void unwind_handler_stack(pTHXo_ void *p); | |
27 | ||
c07a80fd | 28 | /* |
29 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
30 | */ | |
31 | ||
32 | struct magic_state { | |
33 | SV* mgs_sv; | |
34 | U32 mgs_flags; | |
455ece5e | 35 | I32 mgs_ss_ix; |
c07a80fd | 36 | }; |
455ece5e | 37 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
38 | |
39 | STATIC void | |
cea2e8a9 | 40 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 41 | { |
455ece5e | 42 | MGS* mgs; |
c07a80fd | 43 | assert(SvMAGICAL(sv)); |
44 | ||
c76ac1ee | 45 | SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix); |
455ece5e AD |
46 | |
47 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 48 | mgs->mgs_sv = sv; |
49 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 50 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 51 | |
52 | SvMAGICAL_off(sv); | |
53 | SvREADONLY_off(sv); | |
54 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 55 | } |
56 | ||
954c1994 GS |
57 | /* |
58 | =for apidoc mg_magical | |
59 | ||
60 | Turns on the magical status of an SV. See C<sv_magic>. | |
61 | ||
62 | =cut | |
63 | */ | |
64 | ||
8990e307 | 65 | void |
864dbfa3 | 66 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
67 | { |
68 | MAGIC* mg; | |
69 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
70 | MGVTBL* vtbl = mg->mg_virtual; | |
71 | if (vtbl) { | |
2b260de0 | 72 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
73 | SvGMAGICAL_on(sv); |
74 | if (vtbl->svt_set) | |
75 | SvSMAGICAL_on(sv); | |
2b260de0 | 76 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
77 | SvRMAGICAL_on(sv); |
78 | } | |
79 | } | |
80 | } | |
81 | ||
954c1994 GS |
82 | /* |
83 | =for apidoc mg_get | |
84 | ||
85 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
86 | ||
87 | =cut | |
88 | */ | |
89 | ||
79072805 | 90 | int |
864dbfa3 | 91 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 92 | { |
455ece5e | 93 | I32 mgs_ix; |
79072805 | 94 | MAGIC* mg; |
c6496cc7 | 95 | MAGIC** mgp; |
760ac839 | 96 | int mgp_valid = 0; |
463ee0b2 | 97 | |
455ece5e AD |
98 | mgs_ix = SSNEW(sizeof(MGS)); |
99 | save_magic(mgs_ix, sv); | |
463ee0b2 | 100 | |
c6496cc7 | 101 | mgp = &SvMAGIC(sv); |
102 | while ((mg = *mgp) != 0) { | |
79072805 | 103 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 | 104 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 105 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 | 106 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
107 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
108 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 109 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 110 | } |
c6496cc7 | 111 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 112 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 113 | mgp = &mg->mg_moremagic; |
760ac839 LW |
114 | mgp_valid = 1; |
115 | } | |
116 | else | |
117 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 118 | } |
463ee0b2 | 119 | |
51371543 | 120 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
121 | return 0; |
122 | } | |
123 | ||
954c1994 GS |
124 | /* |
125 | =for apidoc mg_set | |
126 | ||
127 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
128 | ||
129 | =cut | |
130 | */ | |
131 | ||
79072805 | 132 | int |
864dbfa3 | 133 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 134 | { |
455ece5e | 135 | I32 mgs_ix; |
79072805 | 136 | MAGIC* mg; |
463ee0b2 LW |
137 | MAGIC* nextmg; |
138 | ||
455ece5e AD |
139 | mgs_ix = SSNEW(sizeof(MGS)); |
140 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
141 | |
142 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 143 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 144 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
145 | if (mg->mg_flags & MGf_GSKIP) { |
146 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 147 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 148 | } |
2b260de0 | 149 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 150 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 151 | } |
463ee0b2 | 152 | |
51371543 | 153 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
154 | return 0; |
155 | } | |
156 | ||
954c1994 GS |
157 | /* |
158 | =for apidoc mg_length | |
159 | ||
160 | Report on the SV's length. See C<sv_magic>. | |
161 | ||
162 | =cut | |
163 | */ | |
164 | ||
79072805 | 165 | U32 |
864dbfa3 | 166 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
167 | { |
168 | MAGIC* mg; | |
748a9306 | 169 | char *junk; |
463ee0b2 | 170 | STRLEN len; |
463ee0b2 | 171 | |
79072805 LW |
172 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
173 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 174 | if (vtbl && vtbl->svt_len) { |
455ece5e | 175 | I32 mgs_ix; |
48e43a1c | 176 | |
455ece5e AD |
177 | mgs_ix = SSNEW(sizeof(MGS)); |
178 | save_magic(mgs_ix, sv); | |
a0d0e21e | 179 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 180 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 181 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 LW |
182 | return len; |
183 | } | |
184 | } | |
185 | ||
748a9306 | 186 | junk = SvPV(sv, len); |
463ee0b2 | 187 | return len; |
79072805 LW |
188 | } |
189 | ||
93965878 | 190 | I32 |
864dbfa3 | 191 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
192 | { |
193 | MAGIC* mg; | |
194 | I32 len; | |
ac27b0f5 | 195 | |
93965878 NIS |
196 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
197 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 198 | if (vtbl && vtbl->svt_len) { |
455ece5e AD |
199 | I32 mgs_ix; |
200 | ||
201 | mgs_ix = SSNEW(sizeof(MGS)); | |
202 | save_magic(mgs_ix, sv); | |
93965878 | 203 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 204 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 205 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 NIS |
206 | return len; |
207 | } | |
208 | } | |
209 | ||
210 | switch(SvTYPE(sv)) { | |
211 | case SVt_PVAV: | |
212 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
213 | return len; | |
214 | case SVt_PVHV: | |
215 | /* FIXME */ | |
216 | default: | |
cea2e8a9 | 217 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
218 | break; |
219 | } | |
220 | return 0; | |
221 | } | |
222 | ||
954c1994 GS |
223 | /* |
224 | =for apidoc mg_clear | |
225 | ||
226 | Clear something magical that the SV represents. See C<sv_magic>. | |
227 | ||
228 | =cut | |
229 | */ | |
230 | ||
79072805 | 231 | int |
864dbfa3 | 232 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 233 | { |
455ece5e | 234 | I32 mgs_ix; |
79072805 | 235 | MAGIC* mg; |
463ee0b2 | 236 | |
455ece5e AD |
237 | mgs_ix = SSNEW(sizeof(MGS)); |
238 | save_magic(mgs_ix, sv); | |
463ee0b2 | 239 | |
79072805 LW |
240 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
241 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
242 | /* omit GSKIP -- never set here */ |
243 | ||
2b260de0 | 244 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 245 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 246 | } |
463ee0b2 | 247 | |
51371543 | 248 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
249 | return 0; |
250 | } | |
251 | ||
954c1994 GS |
252 | /* |
253 | =for apidoc mg_find | |
254 | ||
255 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
256 | ||
257 | =cut | |
258 | */ | |
259 | ||
93a17b20 | 260 | MAGIC* |
864dbfa3 | 261 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
262 | { |
263 | MAGIC* mg; | |
3f8f4626 DC |
264 | if (!sv) |
265 | return 0; | |
93a17b20 LW |
266 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
267 | if (mg->mg_type == type) | |
268 | return mg; | |
269 | } | |
270 | return 0; | |
271 | } | |
272 | ||
954c1994 GS |
273 | /* |
274 | =for apidoc mg_copy | |
275 | ||
276 | Copies the magic from one SV to another. See C<sv_magic>. | |
277 | ||
278 | =cut | |
279 | */ | |
280 | ||
79072805 | 281 | int |
864dbfa3 | 282 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 283 | { |
463ee0b2 | 284 | int count = 0; |
79072805 | 285 | MAGIC* mg; |
463ee0b2 LW |
286 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
287 | if (isUPPER(mg->mg_type)) { | |
33c27489 | 288 | sv_magic(nsv, |
fd345fa8 MG |
289 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : |
290 | (mg->mg_type == 'D' && mg->mg_obj) ? sv : mg->mg_obj, | |
33c27489 | 291 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 292 | count++; |
79072805 | 293 | } |
79072805 | 294 | } |
463ee0b2 | 295 | return count; |
79072805 LW |
296 | } |
297 | ||
954c1994 GS |
298 | /* |
299 | =for apidoc mg_free | |
300 | ||
301 | Free any magic storage used by the SV. See C<sv_magic>. | |
302 | ||
303 | =cut | |
304 | */ | |
305 | ||
79072805 | 306 | int |
864dbfa3 | 307 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
308 | { |
309 | MAGIC* mg; | |
310 | MAGIC* moremagic; | |
311 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
312 | MGVTBL* vtbl = mg->mg_virtual; | |
313 | moremagic = mg->mg_moremagic; | |
2b260de0 | 314 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 315 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
d460ef45 | 316 | if (mg->mg_ptr && mg->mg_type != 'g') { |
565764a8 | 317 | if (mg->mg_len >= 0) |
88e89b8a | 318 | Safefree(mg->mg_ptr); |
565764a8 | 319 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 320 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 321 | } |
85e6fe83 | 322 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 323 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
324 | Safefree(mg); |
325 | } | |
326 | SvMAGIC(sv) = 0; | |
327 | return 0; | |
328 | } | |
329 | ||
d460ef45 | 330 | |
79072805 LW |
331 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
332 | #include <signal.h> | |
333 | #endif | |
334 | ||
942e002e | 335 | U32 |
864dbfa3 | 336 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 337 | { |
6cef1e77 | 338 | register REGEXP *rx; |
6cef1e77 | 339 | |
8f580fb8 IZ |
340 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
341 | if (mg->mg_obj) /* @+ */ | |
342 | return rx->nparens; | |
343 | else /* @- */ | |
344 | return rx->lastparen; | |
345 | } | |
ac27b0f5 | 346 | |
942e002e | 347 | return (U32)-1; |
6cef1e77 IZ |
348 | } |
349 | ||
350 | int | |
864dbfa3 | 351 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 352 | { |
6cef1e77 | 353 | register I32 paren; |
cf93c79d | 354 | register I32 s; |
6cef1e77 IZ |
355 | register I32 i; |
356 | register REGEXP *rx; | |
cf93c79d | 357 | I32 t; |
6cef1e77 IZ |
358 | |
359 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
360 | paren = mg->mg_len; | |
361 | if (paren < 0) | |
362 | return 0; | |
363 | if (paren <= rx->nparens && | |
cf93c79d IZ |
364 | (s = rx->startp[paren]) != -1 && |
365 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
366 | { |
367 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 368 | i = t; |
6cef1e77 | 369 | else /* @- */ |
cf93c79d | 370 | i = s; |
1aa99e6b IH |
371 | |
372 | if (i > 0 && DO_UTF8(PL_reg_sv)) { | |
373 | char *b = rx->subbeg; | |
374 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
375 | } | |
6cef1e77 IZ |
376 | sv_setiv(sv,i); |
377 | } | |
378 | } | |
379 | return 0; | |
380 | } | |
381 | ||
e4b89193 | 382 | int |
a29d06ed MG |
383 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
384 | { | |
a29d06ed | 385 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
386 | /* NOT REACHED */ |
387 | return 0; | |
a29d06ed MG |
388 | } |
389 | ||
93a17b20 | 390 | U32 |
864dbfa3 | 391 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
392 | { |
393 | register I32 paren; | |
93a17b20 | 394 | register I32 i; |
d9f97599 | 395 | register REGEXP *rx; |
a197cbdd | 396 | I32 s1, t1; |
93a17b20 LW |
397 | |
398 | switch (*mg->mg_ptr) { | |
399 | case '1': case '2': case '3': case '4': | |
400 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 401 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d | 402 | |
ffc61ed2 | 403 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 404 | getparen: |
d9f97599 | 405 | if (paren <= rx->nparens && |
cf93c79d IZ |
406 | (s1 = rx->startp[paren]) != -1 && |
407 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 408 | { |
cf93c79d | 409 | i = t1 - s1; |
a197cbdd | 410 | getlen: |
ffc61ed2 JH |
411 | if (i > 0 && DO_UTF8(PL_reg_sv)) { |
412 | char *s = rx->subbeg + s1; | |
a197cbdd | 413 | char *send = rx->subbeg + t1; |
ffc61ed2 | 414 | |
c7d7d594 | 415 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); |
a197cbdd | 416 | } |
ffc61ed2 | 417 | if (i < 0) |
0844c848 | 418 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 419 | return i; |
93a17b20 | 420 | } |
93a17b20 | 421 | } |
748a9306 | 422 | return 0; |
93a17b20 | 423 | case '+': |
3280af22 | 424 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 425 | paren = rx->lastparen; |
13f57bf8 CS |
426 | if (paren) |
427 | goto getparen; | |
93a17b20 | 428 | } |
748a9306 | 429 | return 0; |
93a17b20 | 430 | case '`': |
3280af22 | 431 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
432 | if (rx->startp[0] != -1) { |
433 | i = rx->startp[0]; | |
a197cbdd GS |
434 | if (i > 0) { |
435 | s1 = 0; | |
436 | t1 = i; | |
437 | goto getlen; | |
438 | } | |
93a17b20 | 439 | } |
93a17b20 | 440 | } |
748a9306 | 441 | return 0; |
93a17b20 | 442 | case '\'': |
3280af22 | 443 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
444 | if (rx->endp[0] != -1) { |
445 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
446 | if (i > 0) { |
447 | s1 = rx->endp[0]; | |
448 | t1 = rx->sublen; | |
449 | goto getlen; | |
450 | } | |
93a17b20 | 451 | } |
93a17b20 | 452 | } |
748a9306 | 453 | return 0; |
93a17b20 LW |
454 | } |
455 | magic_get(sv,mg); | |
2d8e6c8d GS |
456 | if (!SvPOK(sv) && SvNIOK(sv)) { |
457 | STRLEN n_a; | |
458 | sv_2pv(sv, &n_a); | |
459 | } | |
93a17b20 LW |
460 | if (SvPOK(sv)) |
461 | return SvCUR(sv); | |
462 | return 0; | |
463 | } | |
464 | ||
79072805 | 465 | int |
864dbfa3 | 466 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
467 | { |
468 | register I32 paren; | |
469 | register char *s; | |
470 | register I32 i; | |
d9f97599 | 471 | register REGEXP *rx; |
79072805 LW |
472 | |
473 | switch (*mg->mg_ptr) { | |
748a9306 | 474 | case '\001': /* ^A */ |
3280af22 | 475 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 476 | break; |
49460fe6 NIS |
477 | case '\003': /* ^C */ |
478 | sv_setiv(sv, (IV)PL_minus_c); | |
479 | break; | |
480 | ||
79072805 | 481 | case '\004': /* ^D */ |
3280af22 | 482 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
d056ab3f GS |
483 | #if defined(YYDEBUG) && defined(DEBUGGING) |
484 | PL_yydebug = (PL_debug & 1); | |
485 | #endif | |
79072805 | 486 | break; |
28f23441 | 487 | case '\005': /* ^E */ |
cd39f2b6 JH |
488 | #ifdef MACOS_TRADITIONAL |
489 | { | |
490 | char msg[256]; | |
ac27b0f5 | 491 | |
bf4acbe4 GS |
492 | sv_setnv(sv,(double)gMacPerl_OSErr); |
493 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
cd39f2b6 JH |
494 | } |
495 | #else | |
28f23441 | 496 | #ifdef VMS |
497 | { | |
498 | # include <descrip.h> | |
499 | # include <starlet.h> | |
500 | char msg[255]; | |
501 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 502 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 503 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
504 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
505 | else | |
506 | sv_setpv(sv,""); | |
507 | } | |
508 | #else | |
88e89b8a | 509 | #ifdef OS2 |
fb73857a | 510 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 511 | sv_setnv(sv, (NV)errno); |
fb73857a | 512 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
513 | } else { | |
017f25f1 IZ |
514 | if (errno != errno_isOS2) { |
515 | int tmp = _syserrno(); | |
516 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
517 | Perl_rc = tmp; | |
518 | } | |
65202027 | 519 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 520 | sv_setpv(sv, os2error(Perl_rc)); |
521 | } | |
88e89b8a | 522 | #else |
22fae026 TM |
523 | #ifdef WIN32 |
524 | { | |
525 | DWORD dwErr = GetLastError(); | |
65202027 | 526 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 527 | if (dwErr) |
76e3520e | 528 | { |
0cb96387 | 529 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 530 | } |
22fae026 TM |
531 | else |
532 | sv_setpv(sv, ""); | |
533 | SetLastError(dwErr); | |
534 | } | |
535 | #else | |
65202027 | 536 | sv_setnv(sv, (NV)errno); |
28f23441 | 537 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
538 | #endif | |
88e89b8a | 539 | #endif |
22fae026 | 540 | #endif |
cd39f2b6 | 541 | #endif |
946ec16e | 542 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 543 | break; |
79072805 | 544 | case '\006': /* ^F */ |
3280af22 | 545 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 546 | break; |
a0d0e21e | 547 | case '\010': /* ^H */ |
3280af22 | 548 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 549 | break; |
9d116dd7 | 550 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
551 | if (PL_inplace) |
552 | sv_setpv(sv, PL_inplace); | |
79072805 | 553 | else |
3280af22 | 554 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 555 | break; |
ac27b0f5 NIS |
556 | case '\017': /* ^O & ^OPEN */ |
557 | if (*(mg->mg_ptr+1) == '\0') | |
558 | sv_setpv(sv, PL_osname); | |
559 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
560 | if (!PL_compiling.cop_io) | |
561 | sv_setsv(sv, &PL_sv_undef); | |
562 | else { | |
563 | sv_setsv(sv, PL_compiling.cop_io); | |
564 | } | |
565 | } | |
28f23441 | 566 | break; |
79072805 | 567 | case '\020': /* ^P */ |
3280af22 | 568 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 569 | break; |
fb73857a | 570 | case '\023': /* ^S */ |
d58bf5aa | 571 | { |
3280af22 | 572 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 573 | (void)SvOK_off(sv); |
3280af22 | 574 | else if (PL_in_eval) |
6dc8a9e4 | 575 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
d58bf5aa | 576 | } |
fb73857a | 577 | break; |
79072805 | 578 | case '\024': /* ^T */ |
88e89b8a | 579 | #ifdef BIG_TIME |
6b88bc9c | 580 | sv_setnv(sv, PL_basetime); |
88e89b8a | 581 | #else |
3280af22 | 582 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 583 | #endif |
79072805 | 584 | break; |
46487f74 | 585 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
586 | if (*(mg->mg_ptr+1) == '\0') |
587 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 588 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
589 | if (PL_compiling.cop_warnings == pWARN_NONE || |
590 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
591 | { |
592 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
593 | } | |
d3a7d8c7 | 594 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 595 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 596 | } |
4438c4b7 JH |
597 | else { |
598 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 599 | } |
d3a7d8c7 | 600 | SvPOK_only(sv); |
4438c4b7 | 601 | } |
46487f74 GS |
602 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
603 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
604 | break; |
605 | case '1': case '2': case '3': case '4': | |
606 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 607 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
608 | I32 s1, t1; |
609 | ||
a863c7d1 MB |
610 | /* |
611 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
612 | * XXX Does the new way break anything? | |
613 | */ | |
ffc61ed2 | 614 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 615 | getparen: |
d9f97599 | 616 | if (paren <= rx->nparens && |
cf93c79d IZ |
617 | (s1 = rx->startp[paren]) != -1 && |
618 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 619 | { |
cf93c79d IZ |
620 | i = t1 - s1; |
621 | s = rx->subbeg + s1; | |
01ec43d0 | 622 | if (!rx->subbeg) |
c2e66d9e GS |
623 | break; |
624 | ||
13f57bf8 | 625 | getrx: |
748a9306 | 626 | if (i >= 0) { |
13f57bf8 | 627 | bool was_tainted; |
3280af22 NIS |
628 | if (PL_tainting) { |
629 | was_tainted = PL_tainted; | |
630 | PL_tainted = FALSE; | |
13f57bf8 | 631 | } |
cf93c79d | 632 | sv_setpvn(sv, s, i); |
ffc61ed2 | 633 | if (DO_UTF8(PL_reg_sv)) |
7e2040f0 GS |
634 | SvUTF8_on(sv); |
635 | else | |
636 | SvUTF8_off(sv); | |
3280af22 NIS |
637 | if (PL_tainting) |
638 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
639 | break; |
640 | } | |
79072805 | 641 | } |
79072805 | 642 | } |
3280af22 | 643 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
644 | break; |
645 | case '+': | |
3280af22 | 646 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 647 | paren = rx->lastparen; |
a0d0e21e LW |
648 | if (paren) |
649 | goto getparen; | |
79072805 | 650 | } |
3280af22 | 651 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
652 | break; |
653 | case '`': | |
3280af22 | 654 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
655 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
656 | i = rx->startp[0]; | |
13f57bf8 | 657 | goto getrx; |
79072805 | 658 | } |
79072805 | 659 | } |
3280af22 | 660 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
661 | break; |
662 | case '\'': | |
3280af22 | 663 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
664 | if (rx->subbeg && rx->endp[0] != -1) { |
665 | s = rx->subbeg + rx->endp[0]; | |
666 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 667 | goto getrx; |
79072805 | 668 | } |
79072805 | 669 | } |
3280af22 | 670 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
671 | break; |
672 | case '.': | |
673 | #ifndef lint | |
3280af22 NIS |
674 | if (GvIO(PL_last_in_gv)) { |
675 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
676 | } |
677 | #endif | |
678 | break; | |
679 | case '?': | |
809a5acc | 680 | { |
809a5acc | 681 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 682 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
683 | LvTARGOFF(sv) = PL_statusvalue; |
684 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 685 | #endif |
809a5acc | 686 | } |
79072805 LW |
687 | break; |
688 | case '^': | |
3280af22 | 689 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
690 | if (s) |
691 | sv_setpv(sv,s); | |
692 | else { | |
3280af22 | 693 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
694 | sv_catpv(sv,"_TOP"); |
695 | } | |
696 | break; | |
697 | case '~': | |
3280af22 | 698 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 699 | if (!s) |
3280af22 | 700 | s = GvENAME(PL_defoutgv); |
79072805 LW |
701 | sv_setpv(sv,s); |
702 | break; | |
703 | #ifndef lint | |
704 | case '=': | |
3280af22 | 705 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
706 | break; |
707 | case '-': | |
3280af22 | 708 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
709 | break; |
710 | case '%': | |
3280af22 | 711 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
712 | break; |
713 | #endif | |
714 | case ':': | |
715 | break; | |
716 | case '/': | |
717 | break; | |
718 | case '[': | |
3280af22 | 719 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
720 | break; |
721 | case '|': | |
3280af22 | 722 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
723 | break; |
724 | case ',': | |
79072805 LW |
725 | break; |
726 | case '\\': | |
79072805 LW |
727 | break; |
728 | case '#': | |
3280af22 | 729 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
730 | break; |
731 | case '!': | |
a5f75d66 | 732 | #ifdef VMS |
65202027 | 733 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 734 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 735 | #else |
88e89b8a | 736 | { |
737 | int saveerrno = errno; | |
65202027 | 738 | sv_setnv(sv, (NV)errno); |
88e89b8a | 739 | #ifdef OS2 |
ed344e4f IZ |
740 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
741 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 742 | else |
a5f75d66 | 743 | #endif |
2304df62 | 744 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 745 | errno = saveerrno; |
746 | } | |
747 | #endif | |
946ec16e | 748 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
749 | break; |
750 | case '<': | |
3280af22 | 751 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
752 | break; |
753 | case '>': | |
3280af22 | 754 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
755 | break; |
756 | case '(': | |
3280af22 | 757 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 758 | #ifdef HAS_GETGROUPS |
785fb66b | 759 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 760 | #endif |
79072805 LW |
761 | goto add_groups; |
762 | case ')': | |
3280af22 | 763 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 764 | #ifdef HAS_GETGROUPS |
785fb66b | 765 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 766 | #endif |
79072805 | 767 | add_groups: |
79072805 | 768 | #ifdef HAS_GETGROUPS |
79072805 | 769 | { |
a0d0e21e | 770 | Groups_t gary[NGROUPS]; |
79072805 | 771 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 772 | while (--i >= 0) |
785fb66b | 773 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
774 | } |
775 | #endif | |
155aba94 | 776 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
777 | break; |
778 | case '*': | |
779 | break; | |
cd39f2b6 | 780 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
781 | case '0': |
782 | break; | |
cd39f2b6 | 783 | #endif |
a863c7d1 MB |
784 | #ifdef USE_THREADS |
785 | case '@': | |
38a03e6e | 786 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
787 | break; |
788 | #endif /* USE_THREADS */ | |
79072805 | 789 | } |
a0d0e21e | 790 | return 0; |
79072805 LW |
791 | } |
792 | ||
793 | int | |
864dbfa3 | 794 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
795 | { |
796 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
797 | ||
798 | if (uf && uf->uf_val) | |
24f81a43 | 799 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
800 | return 0; |
801 | } | |
802 | ||
803 | int | |
864dbfa3 | 804 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
805 | { |
806 | register char *s; | |
88e89b8a | 807 | char *ptr; |
5aabfad6 | 808 | STRLEN len, klen; |
a0d0e21e | 809 | I32 i; |
1e422769 | 810 | |
a0d0e21e | 811 | s = SvPV(sv,len); |
5aabfad6 | 812 | ptr = MgPV(mg,klen); |
88e89b8a | 813 | my_setenv(ptr, s); |
1e422769 | 814 | |
a0d0e21e LW |
815 | #ifdef DYNAMIC_ENV_FETCH |
816 | /* We just undefd an environment var. Is a replacement */ | |
817 | /* waiting in the wings? */ | |
818 | if (!len) { | |
5aabfad6 | 819 | SV **valp; |
6b88bc9c | 820 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 821 | s = SvPV(*valp, len); |
a0d0e21e LW |
822 | } |
823 | #endif | |
1e422769 | 824 | |
39e571d4 | 825 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
826 | /* And you'll never guess what the dog had */ |
827 | /* in its mouth... */ | |
3280af22 | 828 | if (PL_tainting) { |
1e422769 | 829 | MgTAINTEDDIR_off(mg); |
830 | #ifdef VMS | |
5aabfad6 | 831 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 832 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
833 | struct stat sbuf; | |
834 | int i = 0, j = 0; | |
835 | ||
836 | do { /* DCL$PATH may be a search list */ | |
837 | while (1) { /* as may dev portion of any element */ | |
838 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
839 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
840 | cando_by_name(S_IWUSR,0,elt) ) { | |
841 | MgTAINTEDDIR_on(mg); | |
842 | return 0; | |
843 | } | |
844 | } | |
845 | if ((cp = strchr(elt, ':')) != Nullch) | |
846 | *cp = '\0'; | |
847 | if (my_trnlnm(elt, eltbuf, j++)) | |
848 | elt = eltbuf; | |
849 | else | |
850 | break; | |
851 | } | |
852 | j = 0; | |
853 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
854 | } | |
855 | #endif /* VMS */ | |
5aabfad6 | 856 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 857 | char *strend = s + len; |
463ee0b2 LW |
858 | |
859 | while (s < strend) { | |
96827780 | 860 | char tmpbuf[256]; |
1e422769 | 861 | struct stat st; |
96827780 | 862 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 863 | s, strend, ':', &i); |
463ee0b2 | 864 | s++; |
96827780 MB |
865 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
866 | || *tmpbuf != '/' | |
c6ed36e1 | 867 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 868 | MgTAINTEDDIR_on(mg); |
1e422769 | 869 | return 0; |
870 | } | |
463ee0b2 | 871 | } |
79072805 LW |
872 | } |
873 | } | |
39e571d4 | 874 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 875 | |
79072805 LW |
876 | return 0; |
877 | } | |
878 | ||
879 | int | |
864dbfa3 | 880 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 881 | { |
2d8e6c8d GS |
882 | STRLEN n_a; |
883 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
884 | return 0; |
885 | } | |
886 | ||
88e89b8a | 887 | int |
864dbfa3 | 888 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 889 | { |
890 | #if defined(VMS) | |
cea2e8a9 | 891 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 892 | #else |
3280af22 | 893 | if (PL_localizing) { |
fb73857a | 894 | HE* entry; |
2d8e6c8d | 895 | STRLEN n_a; |
fb73857a | 896 | magic_clear_all_env(sv,mg); |
897 | hv_iterinit((HV*)sv); | |
155aba94 | 898 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 899 | I32 keylen; |
900 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 901 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 902 | } |
903 | } | |
904 | #endif | |
905 | return 0; | |
906 | } | |
907 | ||
908 | int | |
864dbfa3 | 909 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 910 | { |
ed79a026 | 911 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 912 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 913 | #else |
7766f137 GS |
914 | # ifdef PERL_IMPLICIT_SYS |
915 | PerlEnv_clearenv(); | |
916 | # else | |
917 | # ifdef WIN32 | |
3e3baf6d TB |
918 | char *envv = GetEnvironmentStrings(); |
919 | char *cur = envv; | |
920 | STRLEN len; | |
921 | while (*cur) { | |
922 | char *end = strchr(cur,'='); | |
923 | if (end && end != cur) { | |
924 | *end = '\0'; | |
925 | my_setenv(cur,Nullch); | |
926 | *end = '='; | |
ac5c734f | 927 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
928 | } |
929 | else if ((len = strlen(cur))) | |
930 | cur += len+1; | |
931 | } | |
932 | FreeEnvironmentStrings(envv); | |
7766f137 | 933 | # else |
5acaa6ec | 934 | #ifdef USE_ENVIRON_ARRAY |
7766f137 | 935 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
936 | I32 i; |
937 | ||
3280af22 | 938 | if (environ == PL_origenviron) |
f2517201 | 939 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
940 | else |
941 | for (i = 0; environ[i]; i++) | |
f2517201 | 942 | safesysfree(environ[i]); |
7766f137 | 943 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 944 | |
66b1d557 HM |
945 | environ[0] = Nullch; |
946 | ||
5acaa6ec | 947 | #endif /* USE_ENVIRON_ARRAY */ |
7766f137 GS |
948 | # endif /* WIN32 */ |
949 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 950 | #endif /* VMS */ |
3e3baf6d | 951 | return 0; |
66b1d557 HM |
952 | } |
953 | ||
64ca3a65 | 954 | #ifndef PERL_MICRO |
66b1d557 | 955 | int |
864dbfa3 | 956 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 957 | { |
958 | I32 i; | |
2d8e6c8d | 959 | STRLEN n_a; |
88e89b8a | 960 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 961 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 962 | if (i) { |
22c35a8c GS |
963 | if(PL_psig_ptr[i]) |
964 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 965 | else { |
ff68c719 | 966 | Sighandler_t sigstate = rsignal_state(i); |
967 | ||
88e89b8a | 968 | /* cache state so we don't fetch it again */ |
ff68c719 | 969 | if(sigstate == SIG_IGN) |
88e89b8a | 970 | sv_setpv(sv,"IGNORE"); |
971 | else | |
3280af22 | 972 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 973 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 974 | SvTEMP_off(sv); |
975 | } | |
976 | } | |
977 | return 0; | |
978 | } | |
979 | int | |
864dbfa3 | 980 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 981 | { |
982 | I32 i; | |
2d8e6c8d | 983 | STRLEN n_a; |
88e89b8a | 984 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 985 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 986 | if (i) { |
22c35a8c GS |
987 | if(PL_psig_ptr[i]) { |
988 | SvREFCNT_dec(PL_psig_ptr[i]); | |
989 | PL_psig_ptr[i]=0; | |
88e89b8a | 990 | } |
22c35a8c GS |
991 | if(PL_psig_name[i]) { |
992 | SvREFCNT_dec(PL_psig_name[i]); | |
993 | PL_psig_name[i]=0; | |
88e89b8a | 994 | } |
995 | } | |
996 | return 0; | |
997 | } | |
3d37d572 | 998 | |
0a8e0eff NIS |
999 | void |
1000 | Perl_raise_signal(pTHX_ int sig) | |
1001 | { | |
1002 | /* Set a flag to say this signal is pending */ | |
1003 | PL_psig_pend[sig]++; | |
1004 | /* And one to say _a_ signal is pending */ | |
1005 | PL_sig_pending = 1; | |
1006 | } | |
1007 | ||
1008 | Signal_t | |
1009 | Perl_csighandler(int sig) | |
1010 | { | |
1011 | #ifdef PERL_OLD_SIGNALS | |
1012 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1013 | (*PL_sighandlerp)(sig); | |
1014 | #else | |
1015 | dTHX; | |
1016 | Perl_raise_signal(aTHX_ sig); | |
1017 | #endif | |
1018 | } | |
1019 | ||
1020 | void | |
1021 | Perl_despatch_signals(pTHX) | |
1022 | { | |
1023 | int sig; | |
1024 | PL_sig_pending = 0; | |
1025 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1026 | if (PL_psig_pend[sig]) { | |
1027 | PL_psig_pend[sig] = 0; | |
1028 | (*PL_sighandlerp)(sig); | |
1029 | } | |
1030 | } | |
1031 | } | |
1032 | ||
85e6fe83 | 1033 | int |
864dbfa3 | 1034 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1035 | { |
1036 | register char *s; | |
1037 | I32 i; | |
748a9306 | 1038 | SV** svp; |
e72dc28c | 1039 | STRLEN len; |
a0d0e21e | 1040 | |
e72dc28c | 1041 | s = MgPV(mg,len); |
748a9306 LW |
1042 | if (*s == '_') { |
1043 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1044 | svp = &PL_diehook; |
748a9306 | 1045 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1046 | svp = &PL_warnhook; |
748a9306 | 1047 | else |
cea2e8a9 | 1048 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1049 | i = 0; |
4633a7c4 LW |
1050 | if (*svp) { |
1051 | SvREFCNT_dec(*svp); | |
1052 | *svp = 0; | |
1053 | } | |
748a9306 LW |
1054 | } |
1055 | else { | |
1056 | i = whichsig(s); /* ...no, a brick */ | |
1057 | if (!i) { | |
e476b1b5 | 1058 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1059 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1060 | return 0; |
1061 | } | |
22c35a8c GS |
1062 | SvREFCNT_dec(PL_psig_name[i]); |
1063 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1064 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1065 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1066 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1067 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1068 | } |
a0d0e21e | 1069 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1070 | if (i) |
0a8e0eff | 1071 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1072 | else |
1073 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1074 | return 0; |
1075 | } | |
e72dc28c | 1076 | s = SvPV_force(sv,len); |
748a9306 LW |
1077 | if (strEQ(s,"IGNORE")) { |
1078 | if (i) | |
ff68c719 | 1079 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1080 | else |
1081 | *svp = 0; | |
1082 | } | |
1083 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1084 | if (i) | |
ff68c719 | 1085 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1086 | else |
1087 | *svp = 0; | |
1088 | } | |
79072805 | 1089 | else { |
5aabfad6 | 1090 | /* |
1091 | * We should warn if HINT_STRICT_REFS, but without | |
1092 | * access to a known hint bit in a known OP, we can't | |
1093 | * tell whether HINT_STRICT_REFS is in force or not. | |
1094 | */ | |
46fc3d4c | 1095 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1096 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1097 | if (i) |
0a8e0eff | 1098 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1099 | else |
1100 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1101 | } |
1102 | return 0; | |
1103 | } | |
64ca3a65 | 1104 | #endif /* !PERL_MICRO */ |
79072805 LW |
1105 | |
1106 | int | |
864dbfa3 | 1107 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1108 | { |
3280af22 | 1109 | PL_sub_generation++; |
463ee0b2 LW |
1110 | return 0; |
1111 | } | |
1112 | ||
1113 | int | |
864dbfa3 | 1114 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1115 | { |
a0d0e21e | 1116 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1117 | PL_amagic_generation++; |
463ee0b2 | 1118 | |
a0d0e21e LW |
1119 | return 0; |
1120 | } | |
463ee0b2 | 1121 | |
946ec16e | 1122 | int |
864dbfa3 | 1123 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1124 | { |
1125 | HV *hv = (HV*)LvTARG(sv); | |
1126 | HE *entry; | |
1127 | I32 i = 0; | |
1128 | ||
1129 | if (hv) { | |
1130 | (void) hv_iterinit(hv); | |
33c27489 | 1131 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1132 | i = HvKEYS(hv); |
1133 | else { | |
1134 | /*SUPPRESS 560*/ | |
155aba94 | 1135 | while ((entry = hv_iternext(hv))) { |
6ff81951 GS |
1136 | i++; |
1137 | } | |
1138 | } | |
1139 | } | |
1140 | ||
1141 | sv_setiv(sv, (IV)i); | |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | int | |
864dbfa3 | 1146 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1147 | { |
1148 | if (LvTARG(sv)) { | |
1149 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1150 | } |
1151 | return 0; | |
ac27b0f5 | 1152 | } |
946ec16e | 1153 | |
e336de0d | 1154 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1155 | STATIC int |
cea2e8a9 | 1156 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1157 | { |
1158 | dSP; | |
463ee0b2 | 1159 | |
924508f0 GS |
1160 | PUSHMARK(SP); |
1161 | EXTEND(SP, n); | |
33c27489 | 1162 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1163 | if (n > 1) { |
93965878 | 1164 | if (mg->mg_ptr) { |
565764a8 | 1165 | if (mg->mg_len >= 0) |
79cb57f6 | 1166 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1167 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1168 | PUSHs((SV*)mg->mg_ptr); |
1169 | } | |
1170 | else if (mg->mg_type == 'p') { | |
565764a8 | 1171 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1172 | } |
1173 | } | |
1174 | if (n > 2) { | |
1175 | PUSHs(val); | |
88e89b8a | 1176 | } |
463ee0b2 LW |
1177 | PUTBACK; |
1178 | ||
864dbfa3 | 1179 | return call_method(meth, flags); |
946ec16e | 1180 | } |
1181 | ||
76e3520e | 1182 | STATIC int |
cea2e8a9 | 1183 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1184 | { |
1185 | dSP; | |
463ee0b2 | 1186 | |
a0d0e21e LW |
1187 | ENTER; |
1188 | SAVETMPS; | |
e788e7d3 | 1189 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1190 | |
33c27489 | 1191 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1192 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1193 | } |
463ee0b2 | 1194 | |
d3acc0f7 | 1195 | POPSTACK; |
a0d0e21e LW |
1196 | FREETMPS; |
1197 | LEAVE; | |
1198 | return 0; | |
1199 | } | |
463ee0b2 | 1200 | |
a0d0e21e | 1201 | int |
864dbfa3 | 1202 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1203 | { |
1204 | magic_methpack(sv,mg,"FETCH"); | |
1205 | if (mg->mg_ptr) | |
1206 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1207 | return 0; |
1208 | } | |
1209 | ||
1210 | int | |
864dbfa3 | 1211 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1212 | { |
1213 | dSP; | |
a60c0954 | 1214 | ENTER; |
e788e7d3 | 1215 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1216 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1217 | POPSTACK; |
a60c0954 | 1218 | LEAVE; |
463ee0b2 LW |
1219 | return 0; |
1220 | } | |
1221 | ||
1222 | int | |
864dbfa3 | 1223 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1224 | { |
a0d0e21e LW |
1225 | return magic_methpack(sv,mg,"DELETE"); |
1226 | } | |
463ee0b2 | 1227 | |
93965878 NIS |
1228 | |
1229 | U32 | |
864dbfa3 | 1230 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1231 | { |
e336de0d | 1232 | dSP; |
93965878 NIS |
1233 | U32 retval = 0; |
1234 | ||
1235 | ENTER; | |
1236 | SAVETMPS; | |
e788e7d3 | 1237 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1238 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1239 | sv = *PL_stack_sp--; |
a60c0954 | 1240 | retval = (U32) SvIV(sv)-1; |
93965878 | 1241 | } |
d3acc0f7 | 1242 | POPSTACK; |
93965878 NIS |
1243 | FREETMPS; |
1244 | LEAVE; | |
1245 | return retval; | |
1246 | } | |
1247 | ||
cea2e8a9 GS |
1248 | int |
1249 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1250 | { |
1251 | dSP; | |
463ee0b2 | 1252 | |
e336de0d | 1253 | ENTER; |
e788e7d3 | 1254 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1255 | PUSHMARK(SP); |
33c27489 | 1256 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1257 | PUTBACK; |
864dbfa3 | 1258 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1259 | POPSTACK; |
a60c0954 | 1260 | LEAVE; |
463ee0b2 LW |
1261 | return 0; |
1262 | } | |
1263 | ||
1264 | int | |
864dbfa3 | 1265 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1266 | { |
463ee0b2 | 1267 | dSP; |
dff6d3cd | 1268 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1269 | |
1270 | ENTER; | |
a0d0e21e | 1271 | SAVETMPS; |
e788e7d3 | 1272 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1273 | PUSHMARK(SP); |
1274 | EXTEND(SP, 2); | |
33c27489 | 1275 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1276 | if (SvOK(key)) |
1277 | PUSHs(key); | |
1278 | PUTBACK; | |
1279 | ||
864dbfa3 | 1280 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1281 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1282 | |
d3acc0f7 | 1283 | POPSTACK; |
a0d0e21e LW |
1284 | FREETMPS; |
1285 | LEAVE; | |
79072805 LW |
1286 | return 0; |
1287 | } | |
1288 | ||
1289 | int | |
864dbfa3 | 1290 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1291 | { |
1292 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1293 | } |
a0d0e21e LW |
1294 | |
1295 | int | |
864dbfa3 | 1296 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1297 | { |
1298 | OP *o; | |
1299 | I32 i; | |
1300 | GV* gv; | |
1301 | SV** svp; | |
2d8e6c8d | 1302 | STRLEN n_a; |
79072805 | 1303 | |
3280af22 | 1304 | gv = PL_DBline; |
79072805 | 1305 | i = SvTRUE(sv); |
188ea221 | 1306 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1307 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1308 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1309 | o->op_private = i; |
79072805 LW |
1310 | return 0; |
1311 | } | |
1312 | ||
1313 | int | |
864dbfa3 | 1314 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1315 | { |
3280af22 | 1316 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1317 | return 0; |
1318 | } | |
1319 | ||
1320 | int | |
864dbfa3 | 1321 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1322 | { |
3280af22 | 1323 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1324 | return 0; |
1325 | } | |
1326 | ||
1327 | int | |
864dbfa3 | 1328 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1329 | { |
1330 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1331 | |
a0d0e21e LW |
1332 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1333 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1334 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1335 | I32 i = mg->mg_len; |
7e2040f0 | 1336 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1337 | sv_pos_b2u(lsv, &i); |
1338 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1339 | return 0; |
1340 | } | |
1341 | } | |
1342 | (void)SvOK_off(sv); | |
1343 | return 0; | |
1344 | } | |
1345 | ||
1346 | int | |
864dbfa3 | 1347 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1348 | { |
1349 | SV* lsv = LvTARG(sv); | |
1350 | SSize_t pos; | |
1351 | STRLEN len; | |
c00206c8 | 1352 | STRLEN ulen = 0; |
a0d0e21e LW |
1353 | |
1354 | mg = 0; | |
ac27b0f5 | 1355 | |
a0d0e21e LW |
1356 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1357 | mg = mg_find(lsv, 'g'); | |
1358 | if (!mg) { | |
1359 | if (!SvOK(sv)) | |
1360 | return 0; | |
1361 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1362 | mg = mg_find(lsv, 'g'); | |
1363 | } | |
1364 | else if (!SvOK(sv)) { | |
565764a8 | 1365 | mg->mg_len = -1; |
a0d0e21e LW |
1366 | return 0; |
1367 | } | |
1368 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1369 | ||
c485e607 | 1370 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1371 | |
7e2040f0 | 1372 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1373 | ulen = sv_len_utf8(lsv); |
1374 | if (ulen) | |
1375 | len = ulen; | |
a0ed51b3 LW |
1376 | } |
1377 | ||
a0d0e21e LW |
1378 | if (pos < 0) { |
1379 | pos += len; | |
1380 | if (pos < 0) | |
1381 | pos = 0; | |
1382 | } | |
1383 | else if (pos > len) | |
1384 | pos = len; | |
a0ed51b3 LW |
1385 | |
1386 | if (ulen) { | |
1387 | I32 p = pos; | |
1388 | sv_pos_u2b(lsv, &p, 0); | |
1389 | pos = p; | |
1390 | } | |
1391 | ||
565764a8 | 1392 | mg->mg_len = pos; |
71be2cbc | 1393 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1394 | |
79072805 LW |
1395 | return 0; |
1396 | } | |
1397 | ||
1398 | int | |
864dbfa3 | 1399 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1400 | { |
8646b087 | 1401 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1402 | SvFAKE_off(sv); | |
946ec16e | 1403 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1404 | SvFAKE_on(sv); |
1405 | } | |
1406 | else | |
946ec16e | 1407 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1408 | return 0; |
1409 | } | |
1410 | ||
1411 | int | |
864dbfa3 | 1412 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1413 | { |
1414 | register char *s; | |
1415 | GV* gv; | |
2d8e6c8d | 1416 | STRLEN n_a; |
79072805 LW |
1417 | |
1418 | if (!SvOK(sv)) | |
1419 | return 0; | |
2d8e6c8d | 1420 | s = SvPV(sv, n_a); |
79072805 LW |
1421 | if (*s == '*' && s[1]) |
1422 | s++; | |
85e6fe83 | 1423 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1424 | if (sv == (SV*)gv) |
1425 | return 0; | |
1426 | if (GvGP(sv)) | |
88e89b8a | 1427 | gp_free((GV*)sv); |
79072805 | 1428 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1429 | return 0; |
1430 | } | |
1431 | ||
1432 | int | |
864dbfa3 | 1433 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1434 | { |
1435 | STRLEN len; | |
1436 | SV *lsv = LvTARG(sv); | |
1437 | char *tmps = SvPV(lsv,len); | |
1438 | I32 offs = LvTARGOFF(sv); | |
1439 | I32 rem = LvTARGLEN(sv); | |
1440 | ||
9aa983d2 JH |
1441 | if (SvUTF8(lsv)) |
1442 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1443 | if (offs > len) |
1444 | offs = len; | |
1445 | if (rem + offs > len) | |
1446 | rem = len - offs; | |
1447 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1448 | if (SvUTF8(lsv)) |
2ef4b674 | 1449 | SvUTF8_on(sv); |
6ff81951 GS |
1450 | return 0; |
1451 | } | |
1452 | ||
1453 | int | |
864dbfa3 | 1454 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1455 | { |
9aa983d2 JH |
1456 | STRLEN len; |
1457 | char *tmps = SvPV(sv, len); | |
1458 | SV *lsv = LvTARG(sv); | |
1459 | I32 lvoff = LvTARGOFF(sv); | |
1460 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1461 | |
1aa99e6b | 1462 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1463 | sv_utf8_upgrade(lsv); |
1464 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1465 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1466 | SvUTF8_on(lsv); | |
1467 | } | |
1468 | else if (SvUTF8(lsv)) { | |
1469 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
e95af362 | 1470 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1471 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1472 | Safefree(tmps); | |
1aa99e6b IH |
1473 | } |
1474 | else | |
9aa983d2 | 1475 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1476 | |
79072805 LW |
1477 | return 0; |
1478 | } | |
1479 | ||
1480 | int | |
864dbfa3 | 1481 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1482 | { |
565764a8 | 1483 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1484 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1485 | return 0; |
1486 | } | |
1487 | ||
1488 | int | |
864dbfa3 | 1489 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1490 | { |
3280af22 NIS |
1491 | if (PL_localizing) { |
1492 | if (PL_localizing == 1) | |
565764a8 | 1493 | mg->mg_len <<= 1; |
748a9306 | 1494 | else |
565764a8 | 1495 | mg->mg_len >>= 1; |
a0d0e21e | 1496 | } |
3280af22 | 1497 | else if (PL_tainted) |
565764a8 | 1498 | mg->mg_len |= 1; |
748a9306 | 1499 | else |
565764a8 | 1500 | mg->mg_len &= ~1; |
463ee0b2 LW |
1501 | return 0; |
1502 | } | |
1503 | ||
1504 | int | |
864dbfa3 | 1505 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1506 | { |
1507 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1508 | |
1509 | if (!lsv) { | |
155aba94 | 1510 | (void)SvOK_off(sv); |
6ff81951 GS |
1511 | return 0; |
1512 | } | |
6ff81951 | 1513 | |
81e118e0 | 1514 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1515 | return 0; |
1516 | } | |
1517 | ||
1518 | int | |
864dbfa3 | 1519 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1520 | { |
1521 | do_vecset(sv); /* XXX slurp this routine */ | |
1522 | return 0; | |
1523 | } | |
1524 | ||
1525 | int | |
864dbfa3 | 1526 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1527 | { |
71be2cbc | 1528 | SV *targ = Nullsv; |
5f05dabc | 1529 | if (LvTARGLEN(sv)) { |
68dc0745 | 1530 | if (mg->mg_obj) { |
74e13ce4 GS |
1531 | SV *ahv = LvTARG(sv); |
1532 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1533 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1534 | if (he) | |
1535 | targ = HeVAL(he); | |
1536 | } | |
1537 | else { | |
1538 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1539 | if (svp) | |
1540 | targ = *svp; | |
1541 | } | |
68dc0745 | 1542 | } |
1543 | else { | |
3c78fafa | 1544 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1545 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1546 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1547 | } | |
3280af22 | 1548 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1549 | /* somebody else defined it for us */ |
1550 | SvREFCNT_dec(LvTARG(sv)); | |
1551 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1552 | LvTARGLEN(sv) = 0; | |
1553 | SvREFCNT_dec(mg->mg_obj); | |
1554 | mg->mg_obj = Nullsv; | |
1555 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1556 | } | |
5f05dabc | 1557 | } |
71be2cbc | 1558 | else |
1559 | targ = LvTARG(sv); | |
3280af22 | 1560 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1561 | return 0; |
1562 | } | |
1563 | ||
1564 | int | |
864dbfa3 | 1565 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1566 | { |
1567 | if (LvTARGLEN(sv)) | |
68dc0745 | 1568 | vivify_defelem(sv); |
1569 | if (LvTARG(sv)) { | |
5f05dabc | 1570 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1571 | SvSETMAGIC(LvTARG(sv)); |
1572 | } | |
5f05dabc | 1573 | return 0; |
1574 | } | |
1575 | ||
71be2cbc | 1576 | void |
864dbfa3 | 1577 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1578 | { |
74e13ce4 GS |
1579 | MAGIC *mg; |
1580 | SV *value = Nullsv; | |
71be2cbc | 1581 | |
68dc0745 | 1582 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1583 | return; |
68dc0745 | 1584 | if (mg->mg_obj) { |
74e13ce4 | 1585 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1586 | STRLEN n_a; |
74e13ce4 | 1587 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1588 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1589 | if (he) |
1590 | value = HeVAL(he); | |
1591 | } | |
1592 | else { | |
af7f9c15 | 1593 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1594 | if (svp) |
1595 | value = *svp; | |
1596 | } | |
3280af22 | 1597 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1598 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1599 | } |
68dc0745 | 1600 | else { |
1601 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1602 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1603 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1604 | else { | |
1605 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1606 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1607 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1608 | } |
1609 | } | |
3e3baf6d | 1610 | (void)SvREFCNT_inc(value); |
68dc0745 | 1611 | SvREFCNT_dec(LvTARG(sv)); |
1612 | LvTARG(sv) = value; | |
71be2cbc | 1613 | LvTARGLEN(sv) = 0; |
68dc0745 | 1614 | SvREFCNT_dec(mg->mg_obj); |
1615 | mg->mg_obj = Nullsv; | |
1616 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1617 | } |
1618 | ||
1619 | int | |
864dbfa3 | 1620 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1621 | { |
1622 | AV *av = (AV*)mg->mg_obj; | |
1623 | SV **svp = AvARRAY(av); | |
1624 | I32 i = AvFILLp(av); | |
1625 | while (i >= 0) { | |
1626 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1627 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1628 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1629 | /* XXX Should we check that it hasn't changed? */ |
1630 | SvRV(svp[i]) = 0; | |
155aba94 | 1631 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1632 | SvWEAKREF_off(svp[i]); |
1633 | svp[i] = &PL_sv_undef; | |
1634 | } | |
1635 | i--; | |
1636 | } | |
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | int | |
864dbfa3 | 1641 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1642 | { |
565764a8 | 1643 | mg->mg_len = -1; |
c6496cc7 | 1644 | SvSCREAM_off(sv); |
93a17b20 LW |
1645 | return 0; |
1646 | } | |
1647 | ||
1648 | int | |
864dbfa3 | 1649 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1650 | { |
463ee0b2 | 1651 | sv_unmagic(sv, 'B'); |
79072805 LW |
1652 | SvVALID_off(sv); |
1653 | return 0; | |
1654 | } | |
1655 | ||
1656 | int | |
864dbfa3 | 1657 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1658 | { |
1659 | sv_unmagic(sv, 'f'); | |
1660 | SvCOMPILED_off(sv); | |
1661 | return 0; | |
1662 | } | |
1663 | ||
1664 | int | |
864dbfa3 | 1665 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1666 | { |
1667 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1668 | ||
1669 | if (uf && uf->uf_set) | |
24f81a43 | 1670 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1671 | return 0; |
1672 | } | |
1673 | ||
c277df42 | 1674 | int |
864dbfa3 | 1675 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1676 | { |
1677 | regexp *re = (regexp *)mg->mg_obj; | |
1678 | ReREFCNT_dec(re); | |
1679 | return 0; | |
1680 | } | |
1681 | ||
7a4c00b4 | 1682 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1683 | int |
864dbfa3 | 1684 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1685 | { |
1686 | /* | |
838b5b74 | 1687 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1688 | * and vanished with a faint plop. |
1689 | */ | |
7a4c00b4 | 1690 | if (mg->mg_ptr) { |
1691 | Safefree(mg->mg_ptr); | |
1692 | mg->mg_ptr = NULL; | |
565764a8 | 1693 | mg->mg_len = -1; |
7a4c00b4 | 1694 | } |
bbce6d69 | 1695 | return 0; |
1696 | } | |
7a4c00b4 | 1697 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1698 | |
1699 | int | |
864dbfa3 | 1700 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1701 | { |
1702 | register char *s; | |
1703 | I32 i; | |
8990e307 | 1704 | STRLEN len; |
79072805 | 1705 | switch (*mg->mg_ptr) { |
748a9306 | 1706 | case '\001': /* ^A */ |
3280af22 | 1707 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1708 | break; |
49460fe6 NIS |
1709 | case '\003': /* ^C */ |
1710 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1711 | break; | |
1712 | ||
79072805 | 1713 | case '\004': /* ^D */ |
3280af22 | 1714 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1715 | DEBUG_x(dump_all()); |
1716 | break; | |
28f23441 | 1717 | case '\005': /* ^E */ |
cd39f2b6 | 1718 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1719 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1720 | #else |
cd39f2b6 JH |
1721 | # ifdef VMS |
1722 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1723 | # else |
cd39f2b6 JH |
1724 | # ifdef WIN32 |
1725 | SetLastError( SvIV(sv) ); | |
1726 | # else | |
1727 | # ifndef OS2 | |
f86702cc | 1728 | /* will anyone ever use this? */ |
1729 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1730 | # endif |
048c1ddf IZ |
1731 | # endif |
1732 | # endif | |
22fae026 | 1733 | #endif |
28f23441 | 1734 | break; |
79072805 | 1735 | case '\006': /* ^F */ |
3280af22 | 1736 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1737 | break; |
a0d0e21e | 1738 | case '\010': /* ^H */ |
3280af22 | 1739 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1740 | break; |
9d116dd7 | 1741 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1742 | if (PL_inplace) |
1743 | Safefree(PL_inplace); | |
79072805 | 1744 | if (SvOK(sv)) |
2d8e6c8d | 1745 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1746 | else |
3280af22 | 1747 | PL_inplace = Nullch; |
79072805 | 1748 | break; |
28f23441 | 1749 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1750 | if (*(mg->mg_ptr+1) == '\0') { |
1751 | if (PL_osname) | |
1752 | Safefree(PL_osname); | |
1753 | if (SvOK(sv)) | |
1754 | PL_osname = savepv(SvPV(sv,len)); | |
1755 | else | |
1756 | PL_osname = Nullch; | |
1757 | } | |
1758 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1759 | if (!PL_compiling.cop_io) | |
1760 | PL_compiling.cop_io = newSVsv(sv); | |
1761 | else | |
1762 | sv_setsv(PL_compiling.cop_io,sv); | |
1763 | } | |
28f23441 | 1764 | break; |
79072805 | 1765 | case '\020': /* ^P */ |
3280af22 | 1766 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1767 | if (PL_perldb && !PL_DBsingle) |
1768 | init_debugger(); | |
79072805 LW |
1769 | break; |
1770 | case '\024': /* ^T */ | |
88e89b8a | 1771 | #ifdef BIG_TIME |
6b88bc9c | 1772 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1773 | #else |
3280af22 | 1774 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1775 | #endif |
79072805 | 1776 | break; |
46487f74 | 1777 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1778 | if (*(mg->mg_ptr+1) == '\0') { |
1779 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1780 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1781 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1782 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1783 | } |
599cee73 | 1784 | } |
6a818117 | 1785 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1786 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1787 | if (!SvPOK(sv) && PL_localizing) { |
1788 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1789 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1790 | break; |
1791 | } | |
f4fc7782 | 1792 | { |
b5477537 | 1793 | STRLEN len, i; |
d3a7d8c7 | 1794 | int accumulate = 0 ; |
f4fc7782 | 1795 | int any_fatals = 0 ; |
d3a7d8c7 | 1796 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1797 | for (i = 0 ; i < len ; ++i) { |
1798 | accumulate |= ptr[i] ; | |
1799 | any_fatals |= (ptr[i] & 0xAA) ; | |
1800 | } | |
d3a7d8c7 GS |
1801 | if (!accumulate) |
1802 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1803 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1804 | PL_compiling.cop_warnings = pWARN_ALL; | |
1805 | PL_dowarn |= G_WARN_ONCE ; | |
1806 | } | |
d3a7d8c7 GS |
1807 | else { |
1808 | if (specialWARN(PL_compiling.cop_warnings)) | |
1809 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1810 | else | |
1811 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1812 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1813 | PL_dowarn |= G_WARN_ONCE ; | |
1814 | } | |
f4fc7782 | 1815 | |
d3a7d8c7 | 1816 | } |
4438c4b7 | 1817 | } |
971a9dd3 | 1818 | } |
46487f74 GS |
1819 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1820 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1821 | break; |
1822 | case '.': | |
3280af22 NIS |
1823 | if (PL_localizing) { |
1824 | if (PL_localizing == 1) | |
7766f137 | 1825 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1826 | } |
3280af22 NIS |
1827 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1828 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1829 | break; |
1830 | case '^': | |
3280af22 | 1831 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1832 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1833 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1834 | break; |
1835 | case '~': | |
3280af22 | 1836 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1837 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1838 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1839 | break; |
1840 | case '=': | |
3280af22 | 1841 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1842 | break; |
1843 | case '-': | |
3280af22 NIS |
1844 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1845 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1846 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1847 | break; |
1848 | case '%': | |
3280af22 | 1849 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1850 | break; |
1851 | case '|': | |
4b65379b | 1852 | { |
3280af22 | 1853 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1854 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1855 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1856 | else { | |
1857 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1858 | PerlIO *ofp = IoOFP(io); | |
1859 | if (ofp) | |
1860 | (void)PerlIO_flush(ofp); | |
1861 | IoFLAGS(io) |= IOf_FLUSH; | |
1862 | } | |
1863 | } | |
79072805 LW |
1864 | } |
1865 | break; | |
1866 | case '*': | |
463ee0b2 | 1867 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1868 | PL_multiline = (i != 0); |
79072805 LW |
1869 | break; |
1870 | case '/': | |
3280af22 NIS |
1871 | SvREFCNT_dec(PL_nrs); |
1872 | PL_nrs = newSVsv(sv); | |
1873 | SvREFCNT_dec(PL_rs); | |
1874 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1875 | break; |
1876 | case '\\': | |
7889fe52 NIS |
1877 | if (PL_ors_sv) |
1878 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 1879 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 1880 | PL_ors_sv = newSVsv(sv); |
009c130f | 1881 | } |
e3c19b7b | 1882 | else { |
7889fe52 | 1883 | PL_ors_sv = Nullsv; |
e3c19b7b | 1884 | } |
79072805 LW |
1885 | break; |
1886 | case ',': | |
7889fe52 NIS |
1887 | if (PL_ofs_sv) |
1888 | SvREFCNT_dec(PL_ofs_sv); | |
1889 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1890 | PL_ofs_sv = newSVsv(sv); | |
1891 | } | |
1892 | else { | |
1893 | PL_ofs_sv = Nullsv; | |
1894 | } | |
79072805 LW |
1895 | break; |
1896 | case '#': | |
3280af22 NIS |
1897 | if (PL_ofmt) |
1898 | Safefree(PL_ofmt); | |
2d8e6c8d | 1899 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1900 | break; |
1901 | case '[': | |
3280af22 | 1902 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1903 | break; |
1904 | case '?': | |
ff0cee69 | 1905 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1906 | if (PL_localizing == 2) { |
1907 | PL_statusvalue = LvTARGOFF(sv); | |
1908 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1909 | } |
1910 | else | |
1911 | #endif | |
1912 | #ifdef VMSISH_STATUS | |
1913 | if (VMSISH_STATUS) | |
1914 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1915 | else | |
1916 | #endif | |
1917 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1918 | break; |
1919 | case '!': | |
78987ded | 1920 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1921 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1922 | break; |
1923 | case '<': | |
3280af22 NIS |
1924 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1925 | if (PL_delaymagic) { | |
1926 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1927 | break; /* don't do magic till later */ |
1928 | } | |
1929 | #ifdef HAS_SETRUID | |
b28d0864 | 1930 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1931 | #else |
1932 | #ifdef HAS_SETREUID | |
3280af22 | 1933 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1934 | #else |
85e6fe83 | 1935 | #ifdef HAS_SETRESUID |
b28d0864 | 1936 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1937 | #else |
b28d0864 NIS |
1938 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1939 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1940 | else { |
d8eceb89 | 1941 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1942 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1943 | } |
79072805 LW |
1944 | #endif |
1945 | #endif | |
85e6fe83 | 1946 | #endif |
d8eceb89 | 1947 | PL_uid = PerlProc_getuid(); |
3280af22 | 1948 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1949 | break; |
1950 | case '>': | |
3280af22 NIS |
1951 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1952 | if (PL_delaymagic) { | |
1953 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1954 | break; /* don't do magic till later */ |
1955 | } | |
1956 | #ifdef HAS_SETEUID | |
3280af22 | 1957 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1958 | #else |
1959 | #ifdef HAS_SETREUID | |
b28d0864 | 1960 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1961 | #else |
1962 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1963 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1964 | #else |
b28d0864 NIS |
1965 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1966 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1967 | else { |
e8ee3774 | 1968 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1969 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1970 | } |
79072805 LW |
1971 | #endif |
1972 | #endif | |
85e6fe83 | 1973 | #endif |
d8eceb89 | 1974 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1975 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1976 | break; |
1977 | case '(': | |
3280af22 NIS |
1978 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1979 | if (PL_delaymagic) { | |
1980 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1981 | break; /* don't do magic till later */ |
1982 | } | |
1983 | #ifdef HAS_SETRGID | |
b28d0864 | 1984 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1985 | #else |
1986 | #ifdef HAS_SETREGID | |
3280af22 | 1987 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1988 | #else |
1989 | #ifdef HAS_SETRESGID | |
b28d0864 | 1990 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1991 | #else |
b28d0864 NIS |
1992 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1993 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1994 | else { |
d8eceb89 | 1995 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 1996 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1997 | } |
79072805 LW |
1998 | #endif |
1999 | #endif | |
85e6fe83 | 2000 | #endif |
d8eceb89 | 2001 | PL_gid = PerlProc_getgid(); |
3280af22 | 2002 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2003 | break; |
2004 | case ')': | |
5cd24f17 | 2005 | #ifdef HAS_SETGROUPS |
2006 | { | |
2d8e6c8d | 2007 | char *p = SvPV(sv, len); |
5cd24f17 | 2008 | Groups_t gary[NGROUPS]; |
2009 | ||
5cd24f17 | 2010 | while (isSPACE(*p)) |
2011 | ++p; | |
2d4389e4 | 2012 | PL_egid = Atol(p); |
5cd24f17 | 2013 | for (i = 0; i < NGROUPS; ++i) { |
2014 | while (*p && !isSPACE(*p)) | |
2015 | ++p; | |
2016 | while (isSPACE(*p)) | |
2017 | ++p; | |
2018 | if (!*p) | |
2019 | break; | |
2d4389e4 | 2020 | gary[i] = Atol(p); |
5cd24f17 | 2021 | } |
8cc95fdb | 2022 | if (i) |
2023 | (void)setgroups(i, gary); | |
5cd24f17 | 2024 | } |
2025 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2026 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2027 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2028 | if (PL_delaymagic) { |
2029 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2030 | break; /* don't do magic till later */ |
2031 | } | |
2032 | #ifdef HAS_SETEGID | |
3280af22 | 2033 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2034 | #else |
2035 | #ifdef HAS_SETREGID | |
b28d0864 | 2036 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2037 | #else |
2038 | #ifdef HAS_SETRESGID | |
b28d0864 | 2039 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2040 | #else |
b28d0864 NIS |
2041 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2042 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2043 | else { |
d8eceb89 | 2044 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2045 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2046 | } |
79072805 LW |
2047 | #endif |
2048 | #endif | |
85e6fe83 | 2049 | #endif |
d8eceb89 | 2050 | PL_egid = PerlProc_getegid(); |
3280af22 | 2051 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2052 | break; |
2053 | case ':': | |
2d8e6c8d | 2054 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2055 | break; |
cd39f2b6 | 2056 | #ifndef MACOS_TRADITIONAL |
79072805 | 2057 | case '0': |
4bc88a62 PS |
2058 | #ifdef HAS_SETPROCTITLE |
2059 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2060 | * show a string from the process struct and provide | |
2061 | * the setproctitle() routine to manipulate that. */ | |
2062 | { | |
2063 | s = SvPV(sv, len); | |
9aad2c0e JH |
2064 | # if __FreeBSD_version >= 410001 |
2065 | /* The leading "-" removes the "perl: " prefix, | |
4bc88a62 PS |
2066 | * but not the "(perl) suffix from the ps(1) |
2067 | * output, because that's what ps(1) shows if the | |
2068 | * argv[] is modified. */ | |
2069 | setproctitle("-%s", s, len + 1); | |
9aad2c0e | 2070 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2071 | /* This doesn't really work if you assume that |
2072 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2073 | * because in ps(1) output the result will be like | |
2074 | * sprintf("perl: %s (perl)", s) | |
2075 | * I guess this is a security feature: | |
2076 | * one (a user process) cannot get rid of the original name. | |
2077 | * --jhi */ | |
2078 | setproctitle("%s", s); | |
2079 | # endif | |
2080 | } | |
2081 | #endif | |
3280af22 NIS |
2082 | if (!PL_origalen) { |
2083 | s = PL_origargv[0]; | |
79072805 LW |
2084 | s += strlen(s); |
2085 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2086 | for (i = 1; i < PL_origargc; i++) { |
2087 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2088 | #ifdef OS2 |
6b88bc9c | 2089 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2090 | #endif |
fb73857a | 2091 | ) |
379c4362 GS |
2092 | { |
2093 | ++s; | |
2094 | s += strlen(s); /* this one is ok too */ | |
2095 | } | |
fb73857a | 2096 | else |
2097 | break; | |
79072805 | 2098 | } |
bbce6d69 | 2099 | /* can grab env area too? */ |
3280af22 | 2100 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2101 | #ifdef OS2 |
6b88bc9c | 2102 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
ac27b0f5 | 2103 | #endif |
fb73857a | 2104 | )) { |
66b1d557 | 2105 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2106 | /* force copy of environment */ |
3280af22 | 2107 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2108 | if (PL_origenviron[i] == s + 1) { |
2109 | ++s; | |
2110 | s += strlen(s); | |
2111 | } | |
fb73857a | 2112 | else |
2113 | break; | |
79072805 | 2114 | } |
3280af22 | 2115 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2116 | } |
a0d0e21e | 2117 | s = SvPV_force(sv,len); |
8990e307 | 2118 | i = len; |
3280af22 NIS |
2119 | if (i >= PL_origalen) { |
2120 | i = PL_origalen; | |
fb73857a | 2121 | /* don't allow system to limit $0 seen by script */ |
2122 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2123 | Copy(s, PL_origargv[0], i, char); |
2124 | s = PL_origargv[0]+i; | |
fb73857a | 2125 | *s = '\0'; |
79072805 LW |
2126 | } |
2127 | else { | |
3280af22 NIS |
2128 | Copy(s, PL_origargv[0], i, char); |
2129 | s = PL_origargv[0]+i; | |
79072805 | 2130 | *s++ = '\0'; |
3280af22 | 2131 | while (++i < PL_origalen) |
8990e307 | 2132 | *s++ = ' '; |
3280af22 NIS |
2133 | s = PL_origargv[0]+i; |
2134 | for (i = 1; i < PL_origargc; i++) | |
2135 | PL_origargv[i] = Nullch; | |
79072805 LW |
2136 | } |
2137 | break; | |
cd39f2b6 | 2138 | #endif |
a863c7d1 MB |
2139 | #ifdef USE_THREADS |
2140 | case '@': | |
38a03e6e | 2141 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2142 | break; |
2143 | #endif /* USE_THREADS */ | |
79072805 LW |
2144 | } |
2145 | return 0; | |
2146 | } | |
2147 | ||
f93b4edd MB |
2148 | #ifdef USE_THREADS |
2149 | int | |
864dbfa3 | 2150 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2151 | { |
b900a521 JH |
2152 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2153 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2154 | PTR2UV(thr), PTR2UV(sv));) | |
f93b4edd | 2155 | if (MgOWNER(mg)) |
cea2e8a9 | 2156 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2157 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2158 | COND_DESTROY(MgCONDP(mg)); | |
2159 | return 0; | |
2160 | } | |
2161 | #endif /* USE_THREADS */ | |
2162 | ||
79072805 | 2163 | I32 |
864dbfa3 | 2164 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2165 | { |
2166 | register char **sigv; | |
2167 | ||
22c35a8c | 2168 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2169 | if (strEQ(sig,*sigv)) |
22c35a8c | 2170 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2171 | #ifdef SIGCLD |
2172 | if (strEQ(sig,"CHLD")) | |
2173 | return SIGCLD; | |
2174 | #endif | |
2175 | #ifdef SIGCHLD | |
2176 | if (strEQ(sig,"CLD")) | |
2177 | return SIGCHLD; | |
2178 | #endif | |
2179 | return 0; | |
2180 | } | |
2181 | ||
84902520 TB |
2182 | static SV* sig_sv; |
2183 | ||
ecfc5424 | 2184 | Signal_t |
cea2e8a9 | 2185 | Perl_sighandler(int sig) |
79072805 | 2186 | { |
71d280e3 GS |
2187 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2188 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ | |
2189 | #else | |
cea2e8a9 | 2190 | dTHX; |
71d280e3 | 2191 | #endif |
79072805 | 2192 | dSP; |
00d579c5 | 2193 | GV *gv = Nullgv; |
a0d0e21e | 2194 | HV *st; |
3280af22 | 2195 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2196 | CV *cv = Nullcv; |
533c011a | 2197 | OP *myop = PL_op; |
84902520 | 2198 | U32 flags = 0; |
155aba94 | 2199 | I32 o_save_i = PL_savestack_ix; |
3280af22 | 2200 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2201 | |
2202 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
2203 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ | |
2204 | #endif | |
ac27b0f5 | 2205 | |
3280af22 | 2206 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2207 | flags |= 1; |
3280af22 | 2208 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2209 | flags |= 4; |
3280af22 | 2210 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2211 | flags |= 8; |
3280af22 | 2212 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2213 | flags |= 16; |
2214 | ||
22c35a8c | 2215 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2216 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2217 | PL_sig_name[sig]); |
ff0cee69 | 2218 | |
84902520 TB |
2219 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2220 | infinity, so we fix 4 (in fact 5): */ | |
2221 | if (flags & 1) { | |
3280af22 NIS |
2222 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2223 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2224 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2225 | } |
ac27b0f5 | 2226 | if (flags & 4) |
3280af22 | 2227 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2228 | if (flags & 8) { |
3280af22 NIS |
2229 | PL_retstack_ix++; |
2230 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2231 | } |
2232 | if (flags & 16) | |
3280af22 | 2233 | PL_scopestack_ix += 1; |
84902520 | 2234 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2235 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2236 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2237 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2238 | |
a0d0e21e | 2239 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2240 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2241 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2242 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2243 | : ((cv && CvGV(cv)) |
2244 | ? GvENAME(CvGV(cv)) | |
2245 | : "__ANON__"))); | |
2246 | goto cleanup; | |
79072805 LW |
2247 | } |
2248 | ||
22c35a8c GS |
2249 | if(PL_psig_name[sig]) { |
2250 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2251 | flags |= 64; |
2252 | sig_sv = sv; | |
2253 | } else { | |
ff0cee69 | 2254 | sv = sv_newmortal(); |
22c35a8c | 2255 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2256 | } |
e336de0d | 2257 | |
e788e7d3 | 2258 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2259 | PUSHMARK(SP); |
79072805 | 2260 | PUSHs(sv); |
79072805 | 2261 | PUTBACK; |
a0d0e21e | 2262 | |
1b266415 | 2263 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2264 | |
d3acc0f7 | 2265 | POPSTACK; |
1b266415 | 2266 | if (SvTRUE(ERRSV)) { |
1d615522 | 2267 | #ifndef PERL_MICRO |
983dbef6 | 2268 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2269 | /* Handler "died", for example to get out of a restart-able read(). |
2270 | * Before we re-do that on its behalf re-enable the signal which was | |
2271 | * blocked by the system when we entered. | |
2272 | */ | |
2273 | sigset_t set; | |
2274 | sigemptyset(&set); | |
2275 | sigaddset(&set,sig); | |
2276 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2277 | #else | |
2278 | /* Not clear if this will work */ | |
2279 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2280 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2281 | #endif |
1d615522 | 2282 | #endif /* !PERL_MICRO */ |
1b266415 NIS |
2283 | Perl_die(aTHX_ Nullch); |
2284 | } | |
00d579c5 | 2285 | cleanup: |
84902520 | 2286 | if (flags & 1) |
3280af22 | 2287 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2288 | if (flags & 4) |
3280af22 | 2289 | PL_markstack_ptr--; |
ac27b0f5 | 2290 | if (flags & 8) |
3280af22 | 2291 | PL_retstack_ix--; |
84902520 | 2292 | if (flags & 16) |
3280af22 | 2293 | PL_scopestack_ix -= 1; |
84902520 TB |
2294 | if (flags & 64) |
2295 | SvREFCNT_dec(sv); | |
533c011a | 2296 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2297 | |
3280af22 NIS |
2298 | PL_Sv = tSv; /* Restore global temporaries. */ |
2299 | PL_Xpv = tXpv; | |
79072805 LW |
2300 | return; |
2301 | } | |
4e35701f NIS |
2302 | |
2303 | ||
51371543 | 2304 | #ifdef PERL_OBJECT |
51371543 GS |
2305 | #include "XSUB.h" |
2306 | #endif | |
2307 | ||
2308 | static void | |
2309 | restore_magic(pTHXo_ void *p) | |
2310 | { | |
48944bdf | 2311 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2312 | SV* sv = mgs->mgs_sv; |
2313 | ||
2314 | if (!sv) | |
2315 | return; | |
2316 | ||
2317 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2318 | { | |
2319 | if (mgs->mgs_flags) | |
2320 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2321 | else | |
2322 | mg_magical(sv); | |
2323 | if (SvGMAGICAL(sv)) | |
2324 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2325 | } | |
2326 | ||
2327 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2328 | ||
2329 | /* If we're still on top of the stack, pop us off. (That condition | |
2330 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2331 | * if it's being called via leave_scope.) | |
2332 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2333 | * may leave alloc gunk on the savestack, and some code | |
2334 | * (e.g. sighandler) doesn't expect that... | |
2335 | */ | |
2336 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2337 | { | |
2338 | I32 popval = SSPOPINT; | |
c76ac1ee | 2339 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2340 | PL_savestack_ix -= 2; |
2341 | popval = SSPOPINT; | |
2342 | assert(popval == SAVEt_ALLOC); | |
2343 | popval = SSPOPINT; | |
2344 | PL_savestack_ix -= popval; | |
2345 | } | |
2346 | ||
2347 | } | |
2348 | ||
2349 | static void | |
2350 | unwind_handler_stack(pTHXo_ void *p) | |
2351 | { | |
51371543 GS |
2352 | U32 flags = *(U32*)p; |
2353 | ||
2354 | if (flags & 1) | |
2355 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2356 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2357 | if (flags & 64) | |
2358 | SvREFCNT_dec(sig_sv); | |
2359 | } |