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 | |
b7953727 JH |
23 | # ifdef I_GRP |
24 | # include <grp.h> | |
25 | # endif | |
188ea221 CS |
26 | #endif |
27 | ||
51371543 GS |
28 | static void restore_magic(pTHXo_ void *p); |
29 | static void unwind_handler_stack(pTHXo_ void *p); | |
30 | ||
c07a80fd | 31 | /* |
32 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
33 | */ | |
34 | ||
35 | struct magic_state { | |
36 | SV* mgs_sv; | |
37 | U32 mgs_flags; | |
455ece5e | 38 | I32 mgs_ss_ix; |
c07a80fd | 39 | }; |
455ece5e | 40 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
41 | |
42 | STATIC void | |
cea2e8a9 | 43 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 44 | { |
455ece5e | 45 | MGS* mgs; |
c07a80fd | 46 | assert(SvMAGICAL(sv)); |
47 | ||
c76ac1ee | 48 | SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix); |
455ece5e AD |
49 | |
50 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 51 | mgs->mgs_sv = sv; |
52 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 53 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 54 | |
55 | SvMAGICAL_off(sv); | |
56 | SvREADONLY_off(sv); | |
06759ea0 | 57 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 58 | } |
59 | ||
954c1994 GS |
60 | /* |
61 | =for apidoc mg_magical | |
62 | ||
63 | Turns on the magical status of an SV. See C<sv_magic>. | |
64 | ||
65 | =cut | |
66 | */ | |
67 | ||
8990e307 | 68 | void |
864dbfa3 | 69 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
70 | { |
71 | MAGIC* mg; | |
72 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
73 | MGVTBL* vtbl = mg->mg_virtual; | |
74 | if (vtbl) { | |
2b260de0 | 75 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
76 | SvGMAGICAL_on(sv); |
77 | if (vtbl->svt_set) | |
78 | SvSMAGICAL_on(sv); | |
2b260de0 | 79 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
80 | SvRMAGICAL_on(sv); |
81 | } | |
82 | } | |
83 | } | |
84 | ||
954c1994 GS |
85 | /* |
86 | =for apidoc mg_get | |
87 | ||
88 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
89 | ||
90 | =cut | |
91 | */ | |
92 | ||
79072805 | 93 | int |
864dbfa3 | 94 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 95 | { |
455ece5e | 96 | I32 mgs_ix; |
79072805 | 97 | MAGIC* mg; |
c6496cc7 | 98 | MAGIC** mgp; |
760ac839 | 99 | int mgp_valid = 0; |
463ee0b2 | 100 | |
455ece5e AD |
101 | mgs_ix = SSNEW(sizeof(MGS)); |
102 | save_magic(mgs_ix, sv); | |
463ee0b2 | 103 | |
c6496cc7 | 104 | mgp = &SvMAGIC(sv); |
105 | while ((mg = *mgp) != 0) { | |
79072805 | 106 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 | 107 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 108 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 | 109 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
110 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
111 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 112 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 113 | } |
c6496cc7 | 114 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 115 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 116 | mgp = &mg->mg_moremagic; |
760ac839 LW |
117 | mgp_valid = 1; |
118 | } | |
119 | else | |
120 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 121 | } |
463ee0b2 | 122 | |
51371543 | 123 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
124 | return 0; |
125 | } | |
126 | ||
954c1994 GS |
127 | /* |
128 | =for apidoc mg_set | |
129 | ||
130 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
131 | ||
132 | =cut | |
133 | */ | |
134 | ||
79072805 | 135 | int |
864dbfa3 | 136 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 137 | { |
455ece5e | 138 | I32 mgs_ix; |
79072805 | 139 | MAGIC* mg; |
463ee0b2 LW |
140 | MAGIC* nextmg; |
141 | ||
455ece5e AD |
142 | mgs_ix = SSNEW(sizeof(MGS)); |
143 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
144 | |
145 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 146 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 147 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
148 | if (mg->mg_flags & MGf_GSKIP) { |
149 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 150 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 151 | } |
2b260de0 | 152 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 153 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 154 | } |
463ee0b2 | 155 | |
51371543 | 156 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
157 | return 0; |
158 | } | |
159 | ||
954c1994 GS |
160 | /* |
161 | =for apidoc mg_length | |
162 | ||
163 | Report on the SV's length. See C<sv_magic>. | |
164 | ||
165 | =cut | |
166 | */ | |
167 | ||
79072805 | 168 | U32 |
864dbfa3 | 169 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
170 | { |
171 | MAGIC* mg; | |
748a9306 | 172 | char *junk; |
463ee0b2 | 173 | STRLEN len; |
463ee0b2 | 174 | |
79072805 LW |
175 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
176 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 177 | if (vtbl && vtbl->svt_len) { |
455ece5e | 178 | I32 mgs_ix; |
48e43a1c | 179 | |
455ece5e AD |
180 | mgs_ix = SSNEW(sizeof(MGS)); |
181 | save_magic(mgs_ix, sv); | |
a0d0e21e | 182 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 183 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 184 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 LW |
185 | return len; |
186 | } | |
187 | } | |
188 | ||
748a9306 | 189 | junk = SvPV(sv, len); |
463ee0b2 | 190 | return len; |
79072805 LW |
191 | } |
192 | ||
93965878 | 193 | I32 |
864dbfa3 | 194 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
195 | { |
196 | MAGIC* mg; | |
197 | I32 len; | |
ac27b0f5 | 198 | |
93965878 NIS |
199 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
200 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 201 | if (vtbl && vtbl->svt_len) { |
455ece5e AD |
202 | I32 mgs_ix; |
203 | ||
204 | mgs_ix = SSNEW(sizeof(MGS)); | |
205 | save_magic(mgs_ix, sv); | |
93965878 | 206 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 207 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 208 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 NIS |
209 | return len; |
210 | } | |
211 | } | |
212 | ||
213 | switch(SvTYPE(sv)) { | |
214 | case SVt_PVAV: | |
215 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
216 | return len; | |
217 | case SVt_PVHV: | |
218 | /* FIXME */ | |
219 | default: | |
cea2e8a9 | 220 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
221 | break; |
222 | } | |
223 | return 0; | |
224 | } | |
225 | ||
954c1994 GS |
226 | /* |
227 | =for apidoc mg_clear | |
228 | ||
229 | Clear something magical that the SV represents. See C<sv_magic>. | |
230 | ||
231 | =cut | |
232 | */ | |
233 | ||
79072805 | 234 | int |
864dbfa3 | 235 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 236 | { |
455ece5e | 237 | I32 mgs_ix; |
79072805 | 238 | MAGIC* mg; |
463ee0b2 | 239 | |
455ece5e AD |
240 | mgs_ix = SSNEW(sizeof(MGS)); |
241 | save_magic(mgs_ix, sv); | |
463ee0b2 | 242 | |
79072805 LW |
243 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
244 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
245 | /* omit GSKIP -- never set here */ |
246 | ||
2b260de0 | 247 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 248 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 249 | } |
463ee0b2 | 250 | |
51371543 | 251 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
252 | return 0; |
253 | } | |
254 | ||
954c1994 GS |
255 | /* |
256 | =for apidoc mg_find | |
257 | ||
258 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
259 | ||
260 | =cut | |
261 | */ | |
262 | ||
93a17b20 | 263 | MAGIC* |
864dbfa3 | 264 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
265 | { |
266 | MAGIC* mg; | |
3f8f4626 DC |
267 | if (!sv) |
268 | return 0; | |
93a17b20 LW |
269 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
270 | if (mg->mg_type == type) | |
271 | return mg; | |
272 | } | |
273 | return 0; | |
274 | } | |
275 | ||
954c1994 GS |
276 | /* |
277 | =for apidoc mg_copy | |
278 | ||
279 | Copies the magic from one SV to another. See C<sv_magic>. | |
280 | ||
281 | =cut | |
282 | */ | |
283 | ||
79072805 | 284 | int |
864dbfa3 | 285 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 286 | { |
463ee0b2 | 287 | int count = 0; |
79072805 | 288 | MAGIC* mg; |
463ee0b2 LW |
289 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
290 | if (isUPPER(mg->mg_type)) { | |
33c27489 | 291 | sv_magic(nsv, |
14befaf4 DM |
292 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
293 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
294 | ? sv : mg->mg_obj, | |
33c27489 | 295 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 296 | count++; |
79072805 | 297 | } |
79072805 | 298 | } |
463ee0b2 | 299 | return count; |
79072805 LW |
300 | } |
301 | ||
954c1994 GS |
302 | /* |
303 | =for apidoc mg_free | |
304 | ||
305 | Free any magic storage used by the SV. See C<sv_magic>. | |
306 | ||
307 | =cut | |
308 | */ | |
309 | ||
79072805 | 310 | int |
864dbfa3 | 311 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
312 | { |
313 | MAGIC* mg; | |
314 | MAGIC* moremagic; | |
315 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
316 | MGVTBL* vtbl = mg->mg_virtual; | |
317 | moremagic = mg->mg_moremagic; | |
2b260de0 | 318 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 319 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 320 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 | 321 | if (mg->mg_len >= 0) |
88e89b8a | 322 | Safefree(mg->mg_ptr); |
565764a8 | 323 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 324 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 325 | } |
85e6fe83 | 326 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 327 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
328 | Safefree(mg); |
329 | } | |
330 | SvMAGIC(sv) = 0; | |
331 | return 0; | |
332 | } | |
333 | ||
d460ef45 | 334 | |
79072805 LW |
335 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
336 | #include <signal.h> | |
337 | #endif | |
338 | ||
942e002e | 339 | U32 |
864dbfa3 | 340 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 341 | { |
6cef1e77 | 342 | register REGEXP *rx; |
6cef1e77 | 343 | |
8f580fb8 IZ |
344 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
345 | if (mg->mg_obj) /* @+ */ | |
346 | return rx->nparens; | |
347 | else /* @- */ | |
348 | return rx->lastparen; | |
349 | } | |
ac27b0f5 | 350 | |
942e002e | 351 | return (U32)-1; |
6cef1e77 IZ |
352 | } |
353 | ||
354 | int | |
864dbfa3 | 355 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 356 | { |
6cef1e77 | 357 | register I32 paren; |
cf93c79d | 358 | register I32 s; |
6cef1e77 IZ |
359 | register I32 i; |
360 | register REGEXP *rx; | |
cf93c79d | 361 | I32 t; |
6cef1e77 IZ |
362 | |
363 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
364 | paren = mg->mg_len; | |
365 | if (paren < 0) | |
366 | return 0; | |
367 | if (paren <= rx->nparens && | |
cf93c79d IZ |
368 | (s = rx->startp[paren]) != -1 && |
369 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
370 | { |
371 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 372 | i = t; |
6cef1e77 | 373 | else /* @- */ |
cf93c79d | 374 | i = s; |
1aa99e6b IH |
375 | |
376 | if (i > 0 && DO_UTF8(PL_reg_sv)) { | |
377 | char *b = rx->subbeg; | |
378 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
379 | } | |
6cef1e77 IZ |
380 | sv_setiv(sv,i); |
381 | } | |
382 | } | |
383 | return 0; | |
384 | } | |
385 | ||
e4b89193 | 386 | int |
a29d06ed MG |
387 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
388 | { | |
a29d06ed | 389 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
390 | /* NOT REACHED */ |
391 | return 0; | |
a29d06ed MG |
392 | } |
393 | ||
93a17b20 | 394 | U32 |
864dbfa3 | 395 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
396 | { |
397 | register I32 paren; | |
93a17b20 | 398 | register I32 i; |
d9f97599 | 399 | register REGEXP *rx; |
a197cbdd | 400 | I32 s1, t1; |
93a17b20 LW |
401 | |
402 | switch (*mg->mg_ptr) { | |
403 | case '1': case '2': case '3': case '4': | |
404 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 405 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d | 406 | |
ffc61ed2 | 407 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 408 | getparen: |
d9f97599 | 409 | if (paren <= rx->nparens && |
cf93c79d IZ |
410 | (s1 = rx->startp[paren]) != -1 && |
411 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 412 | { |
cf93c79d | 413 | i = t1 - s1; |
a197cbdd | 414 | getlen: |
ffc61ed2 JH |
415 | if (i > 0 && DO_UTF8(PL_reg_sv)) { |
416 | char *s = rx->subbeg + s1; | |
a197cbdd | 417 | char *send = rx->subbeg + t1; |
ffc61ed2 | 418 | |
60425c38 JH |
419 | i = t1 - s1; |
420 | if (is_utf8_string((U8*)s, i)) | |
421 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 422 | } |
ffc61ed2 | 423 | if (i < 0) |
0844c848 | 424 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 425 | return i; |
93a17b20 | 426 | } |
93a17b20 | 427 | } |
748a9306 | 428 | return 0; |
93a17b20 | 429 | case '+': |
3280af22 | 430 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 431 | paren = rx->lastparen; |
13f57bf8 CS |
432 | if (paren) |
433 | goto getparen; | |
93a17b20 | 434 | } |
748a9306 | 435 | return 0; |
93a17b20 | 436 | case '`': |
3280af22 | 437 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
438 | if (rx->startp[0] != -1) { |
439 | i = rx->startp[0]; | |
a197cbdd GS |
440 | if (i > 0) { |
441 | s1 = 0; | |
442 | t1 = i; | |
443 | goto getlen; | |
444 | } | |
93a17b20 | 445 | } |
93a17b20 | 446 | } |
748a9306 | 447 | return 0; |
93a17b20 | 448 | case '\'': |
3280af22 | 449 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
450 | if (rx->endp[0] != -1) { |
451 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
452 | if (i > 0) { |
453 | s1 = rx->endp[0]; | |
454 | t1 = rx->sublen; | |
455 | goto getlen; | |
456 | } | |
93a17b20 | 457 | } |
93a17b20 | 458 | } |
748a9306 | 459 | return 0; |
93a17b20 LW |
460 | } |
461 | magic_get(sv,mg); | |
2d8e6c8d GS |
462 | if (!SvPOK(sv) && SvNIOK(sv)) { |
463 | STRLEN n_a; | |
464 | sv_2pv(sv, &n_a); | |
465 | } | |
93a17b20 LW |
466 | if (SvPOK(sv)) |
467 | return SvCUR(sv); | |
468 | return 0; | |
469 | } | |
470 | ||
79072805 | 471 | int |
864dbfa3 | 472 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
473 | { |
474 | register I32 paren; | |
475 | register char *s; | |
476 | register I32 i; | |
d9f97599 | 477 | register REGEXP *rx; |
79072805 LW |
478 | |
479 | switch (*mg->mg_ptr) { | |
748a9306 | 480 | case '\001': /* ^A */ |
3280af22 | 481 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 482 | break; |
49460fe6 NIS |
483 | case '\003': /* ^C */ |
484 | sv_setiv(sv, (IV)PL_minus_c); | |
485 | break; | |
486 | ||
79072805 | 487 | case '\004': /* ^D */ |
aea4f609 | 488 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 489 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 490 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 491 | #endif |
79072805 | 492 | break; |
28f23441 | 493 | case '\005': /* ^E */ |
cd39f2b6 JH |
494 | #ifdef MACOS_TRADITIONAL |
495 | { | |
496 | char msg[256]; | |
ac27b0f5 | 497 | |
bf4acbe4 GS |
498 | sv_setnv(sv,(double)gMacPerl_OSErr); |
499 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
cd39f2b6 JH |
500 | } |
501 | #else | |
28f23441 | 502 | #ifdef VMS |
503 | { | |
504 | # include <descrip.h> | |
505 | # include <starlet.h> | |
506 | char msg[255]; | |
507 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 508 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 509 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
510 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
511 | else | |
512 | sv_setpv(sv,""); | |
513 | } | |
514 | #else | |
88e89b8a | 515 | #ifdef OS2 |
fb73857a | 516 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 517 | sv_setnv(sv, (NV)errno); |
fb73857a | 518 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
519 | } else { | |
017f25f1 IZ |
520 | if (errno != errno_isOS2) { |
521 | int tmp = _syserrno(); | |
522 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
523 | Perl_rc = tmp; | |
524 | } | |
65202027 | 525 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 526 | sv_setpv(sv, os2error(Perl_rc)); |
527 | } | |
88e89b8a | 528 | #else |
22fae026 TM |
529 | #ifdef WIN32 |
530 | { | |
531 | DWORD dwErr = GetLastError(); | |
65202027 | 532 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 533 | if (dwErr) |
76e3520e | 534 | { |
0cb96387 | 535 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 536 | } |
22fae026 TM |
537 | else |
538 | sv_setpv(sv, ""); | |
539 | SetLastError(dwErr); | |
540 | } | |
541 | #else | |
65202027 | 542 | sv_setnv(sv, (NV)errno); |
28f23441 | 543 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
544 | #endif | |
88e89b8a | 545 | #endif |
22fae026 | 546 | #endif |
cd39f2b6 | 547 | #endif |
946ec16e | 548 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 549 | break; |
79072805 | 550 | case '\006': /* ^F */ |
3280af22 | 551 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 552 | break; |
a0d0e21e | 553 | case '\010': /* ^H */ |
3280af22 | 554 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 555 | break; |
9d116dd7 | 556 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
557 | if (PL_inplace) |
558 | sv_setpv(sv, PL_inplace); | |
79072805 | 559 | else |
3280af22 | 560 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 561 | break; |
ac27b0f5 NIS |
562 | case '\017': /* ^O & ^OPEN */ |
563 | if (*(mg->mg_ptr+1) == '\0') | |
564 | sv_setpv(sv, PL_osname); | |
565 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
566 | if (!PL_compiling.cop_io) | |
567 | sv_setsv(sv, &PL_sv_undef); | |
568 | else { | |
569 | sv_setsv(sv, PL_compiling.cop_io); | |
570 | } | |
571 | } | |
28f23441 | 572 | break; |
79072805 | 573 | case '\020': /* ^P */ |
3280af22 | 574 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 575 | break; |
fb73857a | 576 | case '\023': /* ^S */ |
d58bf5aa | 577 | { |
3280af22 | 578 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 579 | (void)SvOK_off(sv); |
3280af22 | 580 | else if (PL_in_eval) |
6dc8a9e4 | 581 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
d58bf5aa | 582 | } |
fb73857a | 583 | break; |
79072805 | 584 | case '\024': /* ^T */ |
88e89b8a | 585 | #ifdef BIG_TIME |
6b88bc9c | 586 | sv_setnv(sv, PL_basetime); |
88e89b8a | 587 | #else |
3280af22 | 588 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 589 | #endif |
79072805 | 590 | break; |
46487f74 | 591 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
592 | if (*(mg->mg_ptr+1) == '\0') |
593 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 594 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
595 | if (PL_compiling.cop_warnings == pWARN_NONE || |
596 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
597 | { |
598 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
599 | } | |
d3a7d8c7 | 600 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 601 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 602 | } |
4438c4b7 JH |
603 | else { |
604 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 605 | } |
d3a7d8c7 | 606 | SvPOK_only(sv); |
4438c4b7 | 607 | } |
46487f74 GS |
608 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
609 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
610 | break; |
611 | case '1': case '2': case '3': case '4': | |
612 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 613 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
614 | I32 s1, t1; |
615 | ||
a863c7d1 MB |
616 | /* |
617 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
618 | * XXX Does the new way break anything? | |
619 | */ | |
ffc61ed2 | 620 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 621 | getparen: |
d9f97599 | 622 | if (paren <= rx->nparens && |
cf93c79d IZ |
623 | (s1 = rx->startp[paren]) != -1 && |
624 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 625 | { |
cf93c79d IZ |
626 | i = t1 - s1; |
627 | s = rx->subbeg + s1; | |
01ec43d0 | 628 | if (!rx->subbeg) |
c2e66d9e GS |
629 | break; |
630 | ||
13f57bf8 | 631 | getrx: |
748a9306 | 632 | if (i >= 0) { |
b7953727 | 633 | bool was_tainted = FALSE; |
3280af22 NIS |
634 | if (PL_tainting) { |
635 | was_tainted = PL_tainted; | |
636 | PL_tainted = FALSE; | |
13f57bf8 | 637 | } |
cf93c79d | 638 | sv_setpvn(sv, s, i); |
bdc14a33 | 639 | if (PL_reg_sv && DO_UTF8(PL_reg_sv) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
640 | SvUTF8_on(sv); |
641 | else | |
642 | SvUTF8_off(sv); | |
3280af22 NIS |
643 | if (PL_tainting) |
644 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
645 | break; |
646 | } | |
79072805 | 647 | } |
79072805 | 648 | } |
3280af22 | 649 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
650 | break; |
651 | case '+': | |
3280af22 | 652 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 653 | paren = rx->lastparen; |
a0d0e21e LW |
654 | if (paren) |
655 | goto getparen; | |
79072805 | 656 | } |
3280af22 | 657 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
658 | break; |
659 | case '`': | |
3280af22 | 660 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
661 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
662 | i = rx->startp[0]; | |
13f57bf8 | 663 | goto getrx; |
79072805 | 664 | } |
79072805 | 665 | } |
3280af22 | 666 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
667 | break; |
668 | case '\'': | |
3280af22 | 669 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
670 | if (rx->subbeg && rx->endp[0] != -1) { |
671 | s = rx->subbeg + rx->endp[0]; | |
672 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 673 | goto getrx; |
79072805 | 674 | } |
79072805 | 675 | } |
3280af22 | 676 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
677 | break; |
678 | case '.': | |
679 | #ifndef lint | |
3280af22 | 680 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 681 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
682 | } |
683 | #endif | |
684 | break; | |
685 | case '?': | |
809a5acc | 686 | { |
809a5acc | 687 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 688 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
689 | LvTARGOFF(sv) = PL_statusvalue; |
690 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 691 | #endif |
809a5acc | 692 | } |
79072805 LW |
693 | break; |
694 | case '^': | |
3280af22 | 695 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
696 | if (s) |
697 | sv_setpv(sv,s); | |
698 | else { | |
3280af22 | 699 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
700 | sv_catpv(sv,"_TOP"); |
701 | } | |
702 | break; | |
703 | case '~': | |
3280af22 | 704 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 705 | if (!s) |
3280af22 | 706 | s = GvENAME(PL_defoutgv); |
79072805 LW |
707 | sv_setpv(sv,s); |
708 | break; | |
709 | #ifndef lint | |
710 | case '=': | |
3280af22 | 711 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
712 | break; |
713 | case '-': | |
3280af22 | 714 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
715 | break; |
716 | case '%': | |
3280af22 | 717 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
718 | break; |
719 | #endif | |
720 | case ':': | |
721 | break; | |
722 | case '/': | |
723 | break; | |
724 | case '[': | |
3280af22 | 725 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
726 | break; |
727 | case '|': | |
3280af22 | 728 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
729 | break; |
730 | case ',': | |
79072805 LW |
731 | break; |
732 | case '\\': | |
79072805 LW |
733 | break; |
734 | case '#': | |
3280af22 | 735 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
736 | break; |
737 | case '!': | |
a5f75d66 | 738 | #ifdef VMS |
65202027 | 739 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 740 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 741 | #else |
88e89b8a | 742 | { |
743 | int saveerrno = errno; | |
65202027 | 744 | sv_setnv(sv, (NV)errno); |
88e89b8a | 745 | #ifdef OS2 |
ed344e4f IZ |
746 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
747 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 748 | else |
a5f75d66 | 749 | #endif |
2304df62 | 750 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 751 | errno = saveerrno; |
752 | } | |
753 | #endif | |
946ec16e | 754 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
755 | break; |
756 | case '<': | |
3280af22 | 757 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
758 | break; |
759 | case '>': | |
3280af22 | 760 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
761 | break; |
762 | case '(': | |
3280af22 | 763 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 764 | #ifdef HAS_GETGROUPS |
785fb66b | 765 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 766 | #endif |
79072805 LW |
767 | goto add_groups; |
768 | case ')': | |
3280af22 | 769 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 770 | #ifdef HAS_GETGROUPS |
785fb66b | 771 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 772 | #endif |
79072805 | 773 | add_groups: |
79072805 | 774 | #ifdef HAS_GETGROUPS |
79072805 | 775 | { |
a0d0e21e | 776 | Groups_t gary[NGROUPS]; |
79072805 | 777 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 778 | while (--i >= 0) |
785fb66b | 779 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
780 | } |
781 | #endif | |
155aba94 | 782 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
783 | break; |
784 | case '*': | |
785 | break; | |
cd39f2b6 | 786 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
787 | case '0': |
788 | break; | |
cd39f2b6 | 789 | #endif |
a863c7d1 MB |
790 | #ifdef USE_THREADS |
791 | case '@': | |
38a03e6e | 792 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
793 | break; |
794 | #endif /* USE_THREADS */ | |
79072805 | 795 | } |
a0d0e21e | 796 | return 0; |
79072805 LW |
797 | } |
798 | ||
799 | int | |
864dbfa3 | 800 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
801 | { |
802 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
803 | ||
804 | if (uf && uf->uf_val) | |
24f81a43 | 805 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
806 | return 0; |
807 | } | |
808 | ||
809 | int | |
864dbfa3 | 810 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
811 | { |
812 | register char *s; | |
88e89b8a | 813 | char *ptr; |
5aabfad6 | 814 | STRLEN len, klen; |
a0d0e21e | 815 | I32 i; |
1e422769 | 816 | |
a0d0e21e | 817 | s = SvPV(sv,len); |
5aabfad6 | 818 | ptr = MgPV(mg,klen); |
88e89b8a | 819 | my_setenv(ptr, s); |
1e422769 | 820 | |
a0d0e21e LW |
821 | #ifdef DYNAMIC_ENV_FETCH |
822 | /* We just undefd an environment var. Is a replacement */ | |
823 | /* waiting in the wings? */ | |
824 | if (!len) { | |
5aabfad6 | 825 | SV **valp; |
6b88bc9c | 826 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 827 | s = SvPV(*valp, len); |
a0d0e21e LW |
828 | } |
829 | #endif | |
1e422769 | 830 | |
39e571d4 | 831 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
832 | /* And you'll never guess what the dog had */ |
833 | /* in its mouth... */ | |
3280af22 | 834 | if (PL_tainting) { |
1e422769 | 835 | MgTAINTEDDIR_off(mg); |
836 | #ifdef VMS | |
5aabfad6 | 837 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 838 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
839 | struct stat sbuf; | |
840 | int i = 0, j = 0; | |
841 | ||
842 | do { /* DCL$PATH may be a search list */ | |
843 | while (1) { /* as may dev portion of any element */ | |
844 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
845 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
846 | cando_by_name(S_IWUSR,0,elt) ) { | |
847 | MgTAINTEDDIR_on(mg); | |
848 | return 0; | |
849 | } | |
850 | } | |
851 | if ((cp = strchr(elt, ':')) != Nullch) | |
852 | *cp = '\0'; | |
853 | if (my_trnlnm(elt, eltbuf, j++)) | |
854 | elt = eltbuf; | |
855 | else | |
856 | break; | |
857 | } | |
858 | j = 0; | |
859 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
860 | } | |
861 | #endif /* VMS */ | |
5aabfad6 | 862 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 863 | char *strend = s + len; |
463ee0b2 LW |
864 | |
865 | while (s < strend) { | |
96827780 | 866 | char tmpbuf[256]; |
1e422769 | 867 | struct stat st; |
96827780 | 868 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 869 | s, strend, ':', &i); |
463ee0b2 | 870 | s++; |
96827780 MB |
871 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
872 | || *tmpbuf != '/' | |
c6ed36e1 | 873 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 874 | MgTAINTEDDIR_on(mg); |
1e422769 | 875 | return 0; |
876 | } | |
463ee0b2 | 877 | } |
79072805 LW |
878 | } |
879 | } | |
39e571d4 | 880 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 881 | |
79072805 LW |
882 | return 0; |
883 | } | |
884 | ||
885 | int | |
864dbfa3 | 886 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 887 | { |
2d8e6c8d GS |
888 | STRLEN n_a; |
889 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
890 | return 0; |
891 | } | |
892 | ||
88e89b8a | 893 | int |
864dbfa3 | 894 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 895 | { |
896 | #if defined(VMS) | |
cea2e8a9 | 897 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 898 | #else |
3280af22 | 899 | if (PL_localizing) { |
fb73857a | 900 | HE* entry; |
2d8e6c8d | 901 | STRLEN n_a; |
fb73857a | 902 | magic_clear_all_env(sv,mg); |
903 | hv_iterinit((HV*)sv); | |
155aba94 | 904 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 905 | I32 keylen; |
906 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 907 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 908 | } |
909 | } | |
910 | #endif | |
911 | return 0; | |
912 | } | |
913 | ||
914 | int | |
864dbfa3 | 915 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 916 | { |
ed79a026 | 917 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 918 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 919 | #else |
7766f137 GS |
920 | # ifdef PERL_IMPLICIT_SYS |
921 | PerlEnv_clearenv(); | |
922 | # else | |
923 | # ifdef WIN32 | |
3e3baf6d TB |
924 | char *envv = GetEnvironmentStrings(); |
925 | char *cur = envv; | |
926 | STRLEN len; | |
927 | while (*cur) { | |
928 | char *end = strchr(cur,'='); | |
929 | if (end && end != cur) { | |
930 | *end = '\0'; | |
931 | my_setenv(cur,Nullch); | |
932 | *end = '='; | |
ac5c734f | 933 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
934 | } |
935 | else if ((len = strlen(cur))) | |
936 | cur += len+1; | |
937 | } | |
938 | FreeEnvironmentStrings(envv); | |
7766f137 | 939 | # else |
5acaa6ec | 940 | #ifdef USE_ENVIRON_ARRAY |
7766f137 | 941 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
942 | I32 i; |
943 | ||
3280af22 | 944 | if (environ == PL_origenviron) |
f2517201 | 945 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
946 | else |
947 | for (i = 0; environ[i]; i++) | |
f2517201 | 948 | safesysfree(environ[i]); |
7766f137 | 949 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 950 | |
66b1d557 HM |
951 | environ[0] = Nullch; |
952 | ||
5acaa6ec | 953 | #endif /* USE_ENVIRON_ARRAY */ |
7766f137 GS |
954 | # endif /* WIN32 */ |
955 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 956 | #endif /* VMS */ |
3e3baf6d | 957 | return 0; |
66b1d557 HM |
958 | } |
959 | ||
64ca3a65 | 960 | #ifndef PERL_MICRO |
66b1d557 | 961 | int |
864dbfa3 | 962 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 963 | { |
964 | I32 i; | |
2d8e6c8d | 965 | STRLEN n_a; |
88e89b8a | 966 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 967 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 968 | if (i) { |
22c35a8c GS |
969 | if(PL_psig_ptr[i]) |
970 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 971 | else { |
ff68c719 | 972 | Sighandler_t sigstate = rsignal_state(i); |
973 | ||
88e89b8a | 974 | /* cache state so we don't fetch it again */ |
ff68c719 | 975 | if(sigstate == SIG_IGN) |
88e89b8a | 976 | sv_setpv(sv,"IGNORE"); |
977 | else | |
3280af22 | 978 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 979 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 980 | SvTEMP_off(sv); |
981 | } | |
982 | } | |
983 | return 0; | |
984 | } | |
985 | int | |
864dbfa3 | 986 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 987 | { |
988 | I32 i; | |
2d8e6c8d | 989 | STRLEN n_a; |
88e89b8a | 990 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 991 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 992 | if (i) { |
22c35a8c GS |
993 | if(PL_psig_ptr[i]) { |
994 | SvREFCNT_dec(PL_psig_ptr[i]); | |
995 | PL_psig_ptr[i]=0; | |
88e89b8a | 996 | } |
22c35a8c GS |
997 | if(PL_psig_name[i]) { |
998 | SvREFCNT_dec(PL_psig_name[i]); | |
999 | PL_psig_name[i]=0; | |
88e89b8a | 1000 | } |
1001 | } | |
1002 | return 0; | |
1003 | } | |
3d37d572 | 1004 | |
0a8e0eff NIS |
1005 | void |
1006 | Perl_raise_signal(pTHX_ int sig) | |
1007 | { | |
1008 | /* Set a flag to say this signal is pending */ | |
1009 | PL_psig_pend[sig]++; | |
1010 | /* And one to say _a_ signal is pending */ | |
1011 | PL_sig_pending = 1; | |
1012 | } | |
1013 | ||
1014 | Signal_t | |
1015 | Perl_csighandler(int sig) | |
1016 | { | |
1017 | #ifdef PERL_OLD_SIGNALS | |
1018 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1019 | (*PL_sighandlerp)(sig); | |
1020 | #else | |
1021 | dTHX; | |
1022 | Perl_raise_signal(aTHX_ sig); | |
1023 | #endif | |
1024 | } | |
1025 | ||
1026 | void | |
1027 | Perl_despatch_signals(pTHX) | |
1028 | { | |
1029 | int sig; | |
1030 | PL_sig_pending = 0; | |
1031 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1032 | if (PL_psig_pend[sig]) { | |
1033 | PL_psig_pend[sig] = 0; | |
1034 | (*PL_sighandlerp)(sig); | |
1035 | } | |
1036 | } | |
1037 | } | |
1038 | ||
85e6fe83 | 1039 | int |
864dbfa3 | 1040 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1041 | { |
1042 | register char *s; | |
1043 | I32 i; | |
b7953727 | 1044 | SV** svp = 0; |
e72dc28c | 1045 | STRLEN len; |
a0d0e21e | 1046 | |
e72dc28c | 1047 | s = MgPV(mg,len); |
748a9306 LW |
1048 | if (*s == '_') { |
1049 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1050 | svp = &PL_diehook; |
748a9306 | 1051 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1052 | svp = &PL_warnhook; |
748a9306 | 1053 | else |
cea2e8a9 | 1054 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1055 | i = 0; |
4633a7c4 LW |
1056 | if (*svp) { |
1057 | SvREFCNT_dec(*svp); | |
1058 | *svp = 0; | |
1059 | } | |
748a9306 LW |
1060 | } |
1061 | else { | |
1062 | i = whichsig(s); /* ...no, a brick */ | |
1063 | if (!i) { | |
e476b1b5 | 1064 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1065 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1066 | return 0; |
1067 | } | |
22c35a8c GS |
1068 | SvREFCNT_dec(PL_psig_name[i]); |
1069 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1070 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1071 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1072 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1073 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1074 | } |
a0d0e21e | 1075 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1076 | if (i) |
0a8e0eff | 1077 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1078 | else |
1079 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1080 | return 0; |
1081 | } | |
e72dc28c | 1082 | s = SvPV_force(sv,len); |
748a9306 LW |
1083 | if (strEQ(s,"IGNORE")) { |
1084 | if (i) | |
ff68c719 | 1085 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1086 | else |
1087 | *svp = 0; | |
1088 | } | |
1089 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1090 | if (i) | |
ff68c719 | 1091 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1092 | else |
1093 | *svp = 0; | |
1094 | } | |
79072805 | 1095 | else { |
5aabfad6 | 1096 | /* |
1097 | * We should warn if HINT_STRICT_REFS, but without | |
1098 | * access to a known hint bit in a known OP, we can't | |
1099 | * tell whether HINT_STRICT_REFS is in force or not. | |
1100 | */ | |
46fc3d4c | 1101 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1102 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1103 | if (i) |
0a8e0eff | 1104 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1105 | else |
1106 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1107 | } |
1108 | return 0; | |
1109 | } | |
64ca3a65 | 1110 | #endif /* !PERL_MICRO */ |
79072805 LW |
1111 | |
1112 | int | |
864dbfa3 | 1113 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1114 | { |
3280af22 | 1115 | PL_sub_generation++; |
463ee0b2 LW |
1116 | return 0; |
1117 | } | |
1118 | ||
1119 | int | |
864dbfa3 | 1120 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1121 | { |
a0d0e21e | 1122 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1123 | PL_amagic_generation++; |
463ee0b2 | 1124 | |
a0d0e21e LW |
1125 | return 0; |
1126 | } | |
463ee0b2 | 1127 | |
946ec16e | 1128 | int |
864dbfa3 | 1129 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1130 | { |
1131 | HV *hv = (HV*)LvTARG(sv); | |
1132 | HE *entry; | |
1133 | I32 i = 0; | |
1134 | ||
1135 | if (hv) { | |
1136 | (void) hv_iterinit(hv); | |
14befaf4 | 1137 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
6ff81951 GS |
1138 | i = HvKEYS(hv); |
1139 | else { | |
1140 | /*SUPPRESS 560*/ | |
155aba94 | 1141 | while ((entry = hv_iternext(hv))) { |
6ff81951 GS |
1142 | i++; |
1143 | } | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | sv_setiv(sv, (IV)i); | |
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | int | |
864dbfa3 | 1152 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1153 | { |
1154 | if (LvTARG(sv)) { | |
1155 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1156 | } |
1157 | return 0; | |
ac27b0f5 | 1158 | } |
946ec16e | 1159 | |
e336de0d | 1160 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1161 | STATIC int |
cea2e8a9 | 1162 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1163 | { |
1164 | dSP; | |
463ee0b2 | 1165 | |
924508f0 GS |
1166 | PUSHMARK(SP); |
1167 | EXTEND(SP, n); | |
33c27489 | 1168 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1169 | if (n > 1) { |
93965878 | 1170 | if (mg->mg_ptr) { |
565764a8 | 1171 | if (mg->mg_len >= 0) |
79cb57f6 | 1172 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1173 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1174 | PUSHs((SV*)mg->mg_ptr); |
1175 | } | |
14befaf4 | 1176 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1177 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1178 | } |
1179 | } | |
1180 | if (n > 2) { | |
1181 | PUSHs(val); | |
88e89b8a | 1182 | } |
463ee0b2 LW |
1183 | PUTBACK; |
1184 | ||
864dbfa3 | 1185 | return call_method(meth, flags); |
946ec16e | 1186 | } |
1187 | ||
76e3520e | 1188 | STATIC int |
cea2e8a9 | 1189 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1190 | { |
1191 | dSP; | |
463ee0b2 | 1192 | |
a0d0e21e LW |
1193 | ENTER; |
1194 | SAVETMPS; | |
e788e7d3 | 1195 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1196 | |
33c27489 | 1197 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1198 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1199 | } |
463ee0b2 | 1200 | |
d3acc0f7 | 1201 | POPSTACK; |
a0d0e21e LW |
1202 | FREETMPS; |
1203 | LEAVE; | |
1204 | return 0; | |
1205 | } | |
463ee0b2 | 1206 | |
a0d0e21e | 1207 | int |
864dbfa3 | 1208 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1209 | { |
1210 | magic_methpack(sv,mg,"FETCH"); | |
1211 | if (mg->mg_ptr) | |
1212 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1213 | return 0; |
1214 | } | |
1215 | ||
1216 | int | |
864dbfa3 | 1217 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1218 | { |
1219 | dSP; | |
a60c0954 | 1220 | ENTER; |
e788e7d3 | 1221 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1222 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1223 | POPSTACK; |
a60c0954 | 1224 | LEAVE; |
463ee0b2 LW |
1225 | return 0; |
1226 | } | |
1227 | ||
1228 | int | |
864dbfa3 | 1229 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1230 | { |
a0d0e21e LW |
1231 | return magic_methpack(sv,mg,"DELETE"); |
1232 | } | |
463ee0b2 | 1233 | |
93965878 NIS |
1234 | |
1235 | U32 | |
864dbfa3 | 1236 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1237 | { |
e336de0d | 1238 | dSP; |
93965878 NIS |
1239 | U32 retval = 0; |
1240 | ||
1241 | ENTER; | |
1242 | SAVETMPS; | |
e788e7d3 | 1243 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1244 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1245 | sv = *PL_stack_sp--; |
a60c0954 | 1246 | retval = (U32) SvIV(sv)-1; |
93965878 | 1247 | } |
d3acc0f7 | 1248 | POPSTACK; |
93965878 NIS |
1249 | FREETMPS; |
1250 | LEAVE; | |
1251 | return retval; | |
1252 | } | |
1253 | ||
cea2e8a9 GS |
1254 | int |
1255 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1256 | { |
1257 | dSP; | |
463ee0b2 | 1258 | |
e336de0d | 1259 | ENTER; |
e788e7d3 | 1260 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1261 | PUSHMARK(SP); |
33c27489 | 1262 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1263 | PUTBACK; |
864dbfa3 | 1264 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1265 | POPSTACK; |
a60c0954 | 1266 | LEAVE; |
463ee0b2 LW |
1267 | return 0; |
1268 | } | |
1269 | ||
1270 | int | |
864dbfa3 | 1271 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1272 | { |
463ee0b2 | 1273 | dSP; |
dff6d3cd | 1274 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1275 | |
1276 | ENTER; | |
a0d0e21e | 1277 | SAVETMPS; |
e788e7d3 | 1278 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1279 | PUSHMARK(SP); |
1280 | EXTEND(SP, 2); | |
33c27489 | 1281 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1282 | if (SvOK(key)) |
1283 | PUSHs(key); | |
1284 | PUTBACK; | |
1285 | ||
864dbfa3 | 1286 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1287 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1288 | |
d3acc0f7 | 1289 | POPSTACK; |
a0d0e21e LW |
1290 | FREETMPS; |
1291 | LEAVE; | |
79072805 LW |
1292 | return 0; |
1293 | } | |
1294 | ||
1295 | int | |
864dbfa3 | 1296 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1297 | { |
1298 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1299 | } |
a0d0e21e LW |
1300 | |
1301 | int | |
864dbfa3 | 1302 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1303 | { |
1304 | OP *o; | |
1305 | I32 i; | |
1306 | GV* gv; | |
1307 | SV** svp; | |
2d8e6c8d | 1308 | STRLEN n_a; |
79072805 | 1309 | |
3280af22 | 1310 | gv = PL_DBline; |
79072805 | 1311 | i = SvTRUE(sv); |
188ea221 | 1312 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1313 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1314 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1315 | o->op_private = i; |
79072805 LW |
1316 | return 0; |
1317 | } | |
1318 | ||
1319 | int | |
864dbfa3 | 1320 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1321 | { |
3280af22 | 1322 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1323 | return 0; |
1324 | } | |
1325 | ||
1326 | int | |
864dbfa3 | 1327 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1328 | { |
3280af22 | 1329 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1330 | return 0; |
1331 | } | |
1332 | ||
1333 | int | |
864dbfa3 | 1334 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1335 | { |
1336 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1337 | |
a0d0e21e | 1338 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1339 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1340 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1341 | I32 i = mg->mg_len; |
7e2040f0 | 1342 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1343 | sv_pos_b2u(lsv, &i); |
1344 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1345 | return 0; |
1346 | } | |
1347 | } | |
1348 | (void)SvOK_off(sv); | |
1349 | return 0; | |
1350 | } | |
1351 | ||
1352 | int | |
864dbfa3 | 1353 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1354 | { |
1355 | SV* lsv = LvTARG(sv); | |
1356 | SSize_t pos; | |
1357 | STRLEN len; | |
c00206c8 | 1358 | STRLEN ulen = 0; |
a0d0e21e LW |
1359 | |
1360 | mg = 0; | |
ac27b0f5 | 1361 | |
a0d0e21e | 1362 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1363 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1364 | if (!mg) { |
1365 | if (!SvOK(sv)) | |
1366 | return 0; | |
14befaf4 DM |
1367 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1368 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1369 | } |
1370 | else if (!SvOK(sv)) { | |
565764a8 | 1371 | mg->mg_len = -1; |
a0d0e21e LW |
1372 | return 0; |
1373 | } | |
1374 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1375 | ||
c485e607 | 1376 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1377 | |
7e2040f0 | 1378 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1379 | ulen = sv_len_utf8(lsv); |
1380 | if (ulen) | |
1381 | len = ulen; | |
a0ed51b3 LW |
1382 | } |
1383 | ||
a0d0e21e LW |
1384 | if (pos < 0) { |
1385 | pos += len; | |
1386 | if (pos < 0) | |
1387 | pos = 0; | |
1388 | } | |
1389 | else if (pos > len) | |
1390 | pos = len; | |
a0ed51b3 LW |
1391 | |
1392 | if (ulen) { | |
1393 | I32 p = pos; | |
1394 | sv_pos_u2b(lsv, &p, 0); | |
1395 | pos = p; | |
1396 | } | |
1397 | ||
565764a8 | 1398 | mg->mg_len = pos; |
71be2cbc | 1399 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1400 | |
79072805 LW |
1401 | return 0; |
1402 | } | |
1403 | ||
1404 | int | |
864dbfa3 | 1405 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1406 | { |
8646b087 | 1407 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1408 | SvFAKE_off(sv); | |
946ec16e | 1409 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1410 | SvFAKE_on(sv); |
1411 | } | |
1412 | else | |
946ec16e | 1413 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1414 | return 0; |
1415 | } | |
1416 | ||
1417 | int | |
864dbfa3 | 1418 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1419 | { |
1420 | register char *s; | |
1421 | GV* gv; | |
2d8e6c8d | 1422 | STRLEN n_a; |
79072805 LW |
1423 | |
1424 | if (!SvOK(sv)) | |
1425 | return 0; | |
2d8e6c8d | 1426 | s = SvPV(sv, n_a); |
79072805 LW |
1427 | if (*s == '*' && s[1]) |
1428 | s++; | |
85e6fe83 | 1429 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1430 | if (sv == (SV*)gv) |
1431 | return 0; | |
1432 | if (GvGP(sv)) | |
88e89b8a | 1433 | gp_free((GV*)sv); |
79072805 | 1434 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1435 | return 0; |
1436 | } | |
1437 | ||
1438 | int | |
864dbfa3 | 1439 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1440 | { |
1441 | STRLEN len; | |
1442 | SV *lsv = LvTARG(sv); | |
1443 | char *tmps = SvPV(lsv,len); | |
1444 | I32 offs = LvTARGOFF(sv); | |
1445 | I32 rem = LvTARGLEN(sv); | |
1446 | ||
9aa983d2 JH |
1447 | if (SvUTF8(lsv)) |
1448 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1449 | if (offs > len) |
1450 | offs = len; | |
1451 | if (rem + offs > len) | |
1452 | rem = len - offs; | |
1453 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1454 | if (SvUTF8(lsv)) |
2ef4b674 | 1455 | SvUTF8_on(sv); |
6ff81951 GS |
1456 | return 0; |
1457 | } | |
1458 | ||
1459 | int | |
864dbfa3 | 1460 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1461 | { |
9aa983d2 JH |
1462 | STRLEN len; |
1463 | char *tmps = SvPV(sv, len); | |
1464 | SV *lsv = LvTARG(sv); | |
1465 | I32 lvoff = LvTARGOFF(sv); | |
1466 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1467 | |
1aa99e6b | 1468 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1469 | sv_utf8_upgrade(lsv); |
1470 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1471 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1472 | SvUTF8_on(lsv); | |
1473 | } | |
1474 | else if (SvUTF8(lsv)) { | |
1475 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
e95af362 | 1476 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1477 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1478 | Safefree(tmps); | |
1aa99e6b IH |
1479 | } |
1480 | else | |
9aa983d2 | 1481 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1482 | |
79072805 LW |
1483 | return 0; |
1484 | } | |
1485 | ||
1486 | int | |
864dbfa3 | 1487 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1488 | { |
565764a8 | 1489 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1490 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1491 | return 0; |
1492 | } | |
1493 | ||
1494 | int | |
864dbfa3 | 1495 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1496 | { |
3280af22 NIS |
1497 | if (PL_localizing) { |
1498 | if (PL_localizing == 1) | |
565764a8 | 1499 | mg->mg_len <<= 1; |
748a9306 | 1500 | else |
565764a8 | 1501 | mg->mg_len >>= 1; |
a0d0e21e | 1502 | } |
3280af22 | 1503 | else if (PL_tainted) |
565764a8 | 1504 | mg->mg_len |= 1; |
748a9306 | 1505 | else |
565764a8 | 1506 | mg->mg_len &= ~1; |
463ee0b2 LW |
1507 | return 0; |
1508 | } | |
1509 | ||
1510 | int | |
864dbfa3 | 1511 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1512 | { |
1513 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1514 | |
1515 | if (!lsv) { | |
155aba94 | 1516 | (void)SvOK_off(sv); |
6ff81951 GS |
1517 | return 0; |
1518 | } | |
6ff81951 | 1519 | |
81e118e0 | 1520 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1521 | return 0; |
1522 | } | |
1523 | ||
1524 | int | |
864dbfa3 | 1525 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1526 | { |
1527 | do_vecset(sv); /* XXX slurp this routine */ | |
1528 | return 0; | |
1529 | } | |
1530 | ||
1531 | int | |
864dbfa3 | 1532 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1533 | { |
71be2cbc | 1534 | SV *targ = Nullsv; |
5f05dabc | 1535 | if (LvTARGLEN(sv)) { |
68dc0745 | 1536 | if (mg->mg_obj) { |
74e13ce4 GS |
1537 | SV *ahv = LvTARG(sv); |
1538 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1539 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1540 | if (he) | |
1541 | targ = HeVAL(he); | |
1542 | } | |
1543 | else { | |
1544 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1545 | if (svp) | |
1546 | targ = *svp; | |
1547 | } | |
68dc0745 | 1548 | } |
1549 | else { | |
3c78fafa | 1550 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1551 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1552 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1553 | } | |
3280af22 | 1554 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1555 | /* somebody else defined it for us */ |
1556 | SvREFCNT_dec(LvTARG(sv)); | |
1557 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1558 | LvTARGLEN(sv) = 0; | |
1559 | SvREFCNT_dec(mg->mg_obj); | |
1560 | mg->mg_obj = Nullsv; | |
1561 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1562 | } | |
5f05dabc | 1563 | } |
71be2cbc | 1564 | else |
1565 | targ = LvTARG(sv); | |
3280af22 | 1566 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1567 | return 0; |
1568 | } | |
1569 | ||
1570 | int | |
864dbfa3 | 1571 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1572 | { |
1573 | if (LvTARGLEN(sv)) | |
68dc0745 | 1574 | vivify_defelem(sv); |
1575 | if (LvTARG(sv)) { | |
5f05dabc | 1576 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1577 | SvSETMAGIC(LvTARG(sv)); |
1578 | } | |
5f05dabc | 1579 | return 0; |
1580 | } | |
1581 | ||
71be2cbc | 1582 | void |
864dbfa3 | 1583 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1584 | { |
74e13ce4 GS |
1585 | MAGIC *mg; |
1586 | SV *value = Nullsv; | |
71be2cbc | 1587 | |
14befaf4 | 1588 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1589 | return; |
68dc0745 | 1590 | if (mg->mg_obj) { |
74e13ce4 | 1591 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1592 | STRLEN n_a; |
74e13ce4 | 1593 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1594 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1595 | if (he) |
1596 | value = HeVAL(he); | |
1597 | } | |
1598 | else { | |
af7f9c15 | 1599 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1600 | if (svp) |
1601 | value = *svp; | |
1602 | } | |
3280af22 | 1603 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1604 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1605 | } |
68dc0745 | 1606 | else { |
1607 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1608 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1609 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1610 | else { | |
1611 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1612 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1613 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1614 | } |
1615 | } | |
3e3baf6d | 1616 | (void)SvREFCNT_inc(value); |
68dc0745 | 1617 | SvREFCNT_dec(LvTARG(sv)); |
1618 | LvTARG(sv) = value; | |
71be2cbc | 1619 | LvTARGLEN(sv) = 0; |
68dc0745 | 1620 | SvREFCNT_dec(mg->mg_obj); |
1621 | mg->mg_obj = Nullsv; | |
1622 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1623 | } |
1624 | ||
1625 | int | |
864dbfa3 | 1626 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1627 | { |
1628 | AV *av = (AV*)mg->mg_obj; | |
1629 | SV **svp = AvARRAY(av); | |
1630 | I32 i = AvFILLp(av); | |
1631 | while (i >= 0) { | |
1632 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1633 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1634 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1635 | /* XXX Should we check that it hasn't changed? */ |
1636 | SvRV(svp[i]) = 0; | |
155aba94 | 1637 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1638 | SvWEAKREF_off(svp[i]); |
1639 | svp[i] = &PL_sv_undef; | |
1640 | } | |
1641 | i--; | |
1642 | } | |
1643 | return 0; | |
1644 | } | |
1645 | ||
1646 | int | |
864dbfa3 | 1647 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1648 | { |
565764a8 | 1649 | mg->mg_len = -1; |
c6496cc7 | 1650 | SvSCREAM_off(sv); |
93a17b20 LW |
1651 | return 0; |
1652 | } | |
1653 | ||
1654 | int | |
864dbfa3 | 1655 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1656 | { |
14befaf4 | 1657 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1658 | SvVALID_off(sv); |
1659 | return 0; | |
1660 | } | |
1661 | ||
1662 | int | |
864dbfa3 | 1663 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1664 | { |
14befaf4 | 1665 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1666 | SvCOMPILED_off(sv); |
1667 | return 0; | |
1668 | } | |
1669 | ||
1670 | int | |
864dbfa3 | 1671 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1672 | { |
1673 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1674 | ||
1675 | if (uf && uf->uf_set) | |
24f81a43 | 1676 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1677 | return 0; |
1678 | } | |
1679 | ||
c277df42 | 1680 | int |
864dbfa3 | 1681 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1682 | { |
1683 | regexp *re = (regexp *)mg->mg_obj; | |
1684 | ReREFCNT_dec(re); | |
1685 | return 0; | |
1686 | } | |
1687 | ||
7a4c00b4 | 1688 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1689 | int |
864dbfa3 | 1690 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1691 | { |
1692 | /* | |
838b5b74 | 1693 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1694 | * and vanished with a faint plop. |
1695 | */ | |
7a4c00b4 | 1696 | if (mg->mg_ptr) { |
1697 | Safefree(mg->mg_ptr); | |
1698 | mg->mg_ptr = NULL; | |
565764a8 | 1699 | mg->mg_len = -1; |
7a4c00b4 | 1700 | } |
bbce6d69 | 1701 | return 0; |
1702 | } | |
7a4c00b4 | 1703 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1704 | |
1705 | int | |
864dbfa3 | 1706 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1707 | { |
1708 | register char *s; | |
1709 | I32 i; | |
8990e307 | 1710 | STRLEN len; |
79072805 | 1711 | switch (*mg->mg_ptr) { |
748a9306 | 1712 | case '\001': /* ^A */ |
3280af22 | 1713 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1714 | break; |
49460fe6 NIS |
1715 | case '\003': /* ^C */ |
1716 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1717 | break; | |
1718 | ||
79072805 | 1719 | case '\004': /* ^D */ |
aea4f609 | 1720 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1721 | DEBUG_x(dump_all()); |
1722 | break; | |
28f23441 | 1723 | case '\005': /* ^E */ |
cd39f2b6 | 1724 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1725 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1726 | #else |
cd39f2b6 JH |
1727 | # ifdef VMS |
1728 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1729 | # else |
cd39f2b6 JH |
1730 | # ifdef WIN32 |
1731 | SetLastError( SvIV(sv) ); | |
1732 | # else | |
1733 | # ifndef OS2 | |
f86702cc | 1734 | /* will anyone ever use this? */ |
1735 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1736 | # endif |
048c1ddf IZ |
1737 | # endif |
1738 | # endif | |
22fae026 | 1739 | #endif |
28f23441 | 1740 | break; |
79072805 | 1741 | case '\006': /* ^F */ |
3280af22 | 1742 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1743 | break; |
a0d0e21e | 1744 | case '\010': /* ^H */ |
3280af22 | 1745 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1746 | break; |
9d116dd7 | 1747 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1748 | if (PL_inplace) |
1749 | Safefree(PL_inplace); | |
79072805 | 1750 | if (SvOK(sv)) |
2d8e6c8d | 1751 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1752 | else |
3280af22 | 1753 | PL_inplace = Nullch; |
79072805 | 1754 | break; |
28f23441 | 1755 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1756 | if (*(mg->mg_ptr+1) == '\0') { |
1757 | if (PL_osname) | |
1758 | Safefree(PL_osname); | |
1759 | if (SvOK(sv)) | |
1760 | PL_osname = savepv(SvPV(sv,len)); | |
1761 | else | |
1762 | PL_osname = Nullch; | |
1763 | } | |
1764 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1765 | if (!PL_compiling.cop_io) | |
1766 | PL_compiling.cop_io = newSVsv(sv); | |
1767 | else | |
1768 | sv_setsv(PL_compiling.cop_io,sv); | |
1769 | } | |
28f23441 | 1770 | break; |
79072805 | 1771 | case '\020': /* ^P */ |
3280af22 | 1772 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1773 | if (PL_perldb && !PL_DBsingle) |
1774 | init_debugger(); | |
79072805 LW |
1775 | break; |
1776 | case '\024': /* ^T */ | |
88e89b8a | 1777 | #ifdef BIG_TIME |
6b88bc9c | 1778 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1779 | #else |
3280af22 | 1780 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1781 | #endif |
79072805 | 1782 | break; |
46487f74 | 1783 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1784 | if (*(mg->mg_ptr+1) == '\0') { |
1785 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1786 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1787 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1788 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1789 | } |
599cee73 | 1790 | } |
6a818117 | 1791 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1792 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1793 | if (!SvPOK(sv) && PL_localizing) { |
1794 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1795 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1796 | break; |
1797 | } | |
f4fc7782 | 1798 | { |
b5477537 | 1799 | STRLEN len, i; |
d3a7d8c7 | 1800 | int accumulate = 0 ; |
f4fc7782 | 1801 | int any_fatals = 0 ; |
d3a7d8c7 | 1802 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1803 | for (i = 0 ; i < len ; ++i) { |
1804 | accumulate |= ptr[i] ; | |
1805 | any_fatals |= (ptr[i] & 0xAA) ; | |
1806 | } | |
d3a7d8c7 GS |
1807 | if (!accumulate) |
1808 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1809 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1810 | PL_compiling.cop_warnings = pWARN_ALL; | |
1811 | PL_dowarn |= G_WARN_ONCE ; | |
1812 | } | |
d3a7d8c7 GS |
1813 | else { |
1814 | if (specialWARN(PL_compiling.cop_warnings)) | |
1815 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1816 | else | |
1817 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1818 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1819 | PL_dowarn |= G_WARN_ONCE ; | |
1820 | } | |
f4fc7782 | 1821 | |
d3a7d8c7 | 1822 | } |
4438c4b7 | 1823 | } |
971a9dd3 | 1824 | } |
46487f74 GS |
1825 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1826 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1827 | break; |
1828 | case '.': | |
3280af22 NIS |
1829 | if (PL_localizing) { |
1830 | if (PL_localizing == 1) | |
7766f137 | 1831 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1832 | } |
3280af22 NIS |
1833 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1834 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1835 | break; |
1836 | case '^': | |
3280af22 | 1837 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1838 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1839 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1840 | break; |
1841 | case '~': | |
3280af22 | 1842 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1843 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1844 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1845 | break; |
1846 | case '=': | |
3280af22 | 1847 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1848 | break; |
1849 | case '-': | |
3280af22 NIS |
1850 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1851 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1852 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1853 | break; |
1854 | case '%': | |
3280af22 | 1855 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1856 | break; |
1857 | case '|': | |
4b65379b | 1858 | { |
3280af22 | 1859 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1860 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1861 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1862 | else { | |
1863 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1864 | PerlIO *ofp = IoOFP(io); | |
1865 | if (ofp) | |
1866 | (void)PerlIO_flush(ofp); | |
1867 | IoFLAGS(io) |= IOf_FLUSH; | |
1868 | } | |
1869 | } | |
79072805 LW |
1870 | } |
1871 | break; | |
1872 | case '*': | |
463ee0b2 | 1873 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1874 | PL_multiline = (i != 0); |
79072805 LW |
1875 | break; |
1876 | case '/': | |
3280af22 NIS |
1877 | SvREFCNT_dec(PL_nrs); |
1878 | PL_nrs = newSVsv(sv); | |
1879 | SvREFCNT_dec(PL_rs); | |
1880 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1881 | break; |
1882 | case '\\': | |
7889fe52 NIS |
1883 | if (PL_ors_sv) |
1884 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 1885 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 1886 | PL_ors_sv = newSVsv(sv); |
009c130f | 1887 | } |
e3c19b7b | 1888 | else { |
7889fe52 | 1889 | PL_ors_sv = Nullsv; |
e3c19b7b | 1890 | } |
79072805 LW |
1891 | break; |
1892 | case ',': | |
7889fe52 NIS |
1893 | if (PL_ofs_sv) |
1894 | SvREFCNT_dec(PL_ofs_sv); | |
1895 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1896 | PL_ofs_sv = newSVsv(sv); | |
1897 | } | |
1898 | else { | |
1899 | PL_ofs_sv = Nullsv; | |
1900 | } | |
79072805 LW |
1901 | break; |
1902 | case '#': | |
3280af22 NIS |
1903 | if (PL_ofmt) |
1904 | Safefree(PL_ofmt); | |
2d8e6c8d | 1905 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1906 | break; |
1907 | case '[': | |
3280af22 | 1908 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1909 | break; |
1910 | case '?': | |
ff0cee69 | 1911 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1912 | if (PL_localizing == 2) { |
1913 | PL_statusvalue = LvTARGOFF(sv); | |
1914 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1915 | } |
1916 | else | |
1917 | #endif | |
1918 | #ifdef VMSISH_STATUS | |
1919 | if (VMSISH_STATUS) | |
1920 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1921 | else | |
1922 | #endif | |
1923 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1924 | break; |
1925 | case '!': | |
78987ded | 1926 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1927 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1928 | break; |
1929 | case '<': | |
3280af22 NIS |
1930 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1931 | if (PL_delaymagic) { | |
1932 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1933 | break; /* don't do magic till later */ |
1934 | } | |
1935 | #ifdef HAS_SETRUID | |
b28d0864 | 1936 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1937 | #else |
1938 | #ifdef HAS_SETREUID | |
3280af22 | 1939 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1940 | #else |
85e6fe83 | 1941 | #ifdef HAS_SETRESUID |
b28d0864 | 1942 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1943 | #else |
b28d0864 NIS |
1944 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1945 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1946 | else { |
d8eceb89 | 1947 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1948 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1949 | } |
79072805 LW |
1950 | #endif |
1951 | #endif | |
85e6fe83 | 1952 | #endif |
d8eceb89 | 1953 | PL_uid = PerlProc_getuid(); |
3280af22 | 1954 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1955 | break; |
1956 | case '>': | |
3280af22 NIS |
1957 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1958 | if (PL_delaymagic) { | |
1959 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1960 | break; /* don't do magic till later */ |
1961 | } | |
1962 | #ifdef HAS_SETEUID | |
3280af22 | 1963 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1964 | #else |
1965 | #ifdef HAS_SETREUID | |
b28d0864 | 1966 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1967 | #else |
1968 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1969 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1970 | #else |
b28d0864 NIS |
1971 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1972 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1973 | else { |
e8ee3774 | 1974 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1975 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1976 | } |
79072805 LW |
1977 | #endif |
1978 | #endif | |
85e6fe83 | 1979 | #endif |
d8eceb89 | 1980 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1981 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1982 | break; |
1983 | case '(': | |
3280af22 NIS |
1984 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1985 | if (PL_delaymagic) { | |
1986 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1987 | break; /* don't do magic till later */ |
1988 | } | |
1989 | #ifdef HAS_SETRGID | |
b28d0864 | 1990 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1991 | #else |
1992 | #ifdef HAS_SETREGID | |
3280af22 | 1993 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1994 | #else |
1995 | #ifdef HAS_SETRESGID | |
b28d0864 | 1996 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1997 | #else |
b28d0864 NIS |
1998 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1999 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2000 | else { |
d8eceb89 | 2001 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2002 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2003 | } |
79072805 LW |
2004 | #endif |
2005 | #endif | |
85e6fe83 | 2006 | #endif |
d8eceb89 | 2007 | PL_gid = PerlProc_getgid(); |
3280af22 | 2008 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2009 | break; |
2010 | case ')': | |
5cd24f17 | 2011 | #ifdef HAS_SETGROUPS |
2012 | { | |
2d8e6c8d | 2013 | char *p = SvPV(sv, len); |
5cd24f17 | 2014 | Groups_t gary[NGROUPS]; |
2015 | ||
5cd24f17 | 2016 | while (isSPACE(*p)) |
2017 | ++p; | |
2d4389e4 | 2018 | PL_egid = Atol(p); |
5cd24f17 | 2019 | for (i = 0; i < NGROUPS; ++i) { |
2020 | while (*p && !isSPACE(*p)) | |
2021 | ++p; | |
2022 | while (isSPACE(*p)) | |
2023 | ++p; | |
2024 | if (!*p) | |
2025 | break; | |
2d4389e4 | 2026 | gary[i] = Atol(p); |
5cd24f17 | 2027 | } |
8cc95fdb | 2028 | if (i) |
2029 | (void)setgroups(i, gary); | |
5cd24f17 | 2030 | } |
2031 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2032 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2033 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2034 | if (PL_delaymagic) { |
2035 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2036 | break; /* don't do magic till later */ |
2037 | } | |
2038 | #ifdef HAS_SETEGID | |
3280af22 | 2039 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2040 | #else |
2041 | #ifdef HAS_SETREGID | |
b28d0864 | 2042 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2043 | #else |
2044 | #ifdef HAS_SETRESGID | |
b28d0864 | 2045 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2046 | #else |
b28d0864 NIS |
2047 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2048 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2049 | else { |
d8eceb89 | 2050 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2051 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2052 | } |
79072805 LW |
2053 | #endif |
2054 | #endif | |
85e6fe83 | 2055 | #endif |
d8eceb89 | 2056 | PL_egid = PerlProc_getegid(); |
3280af22 | 2057 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2058 | break; |
2059 | case ':': | |
2d8e6c8d | 2060 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2061 | break; |
cd39f2b6 | 2062 | #ifndef MACOS_TRADITIONAL |
79072805 | 2063 | case '0': |
4bc88a62 PS |
2064 | #ifdef HAS_SETPROCTITLE |
2065 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2066 | * show a string from the process struct and provide | |
2067 | * the setproctitle() routine to manipulate that. */ | |
2068 | { | |
2069 | s = SvPV(sv, len); | |
9aad2c0e JH |
2070 | # if __FreeBSD_version >= 410001 |
2071 | /* The leading "-" removes the "perl: " prefix, | |
4bc88a62 PS |
2072 | * but not the "(perl) suffix from the ps(1) |
2073 | * output, because that's what ps(1) shows if the | |
2074 | * argv[] is modified. */ | |
2075 | setproctitle("-%s", s, len + 1); | |
9aad2c0e | 2076 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2077 | /* This doesn't really work if you assume that |
2078 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2079 | * because in ps(1) output the result will be like | |
2080 | * sprintf("perl: %s (perl)", s) | |
2081 | * I guess this is a security feature: | |
2082 | * one (a user process) cannot get rid of the original name. | |
2083 | * --jhi */ | |
2084 | setproctitle("%s", s); | |
2085 | # endif | |
2086 | } | |
2087 | #endif | |
3280af22 NIS |
2088 | if (!PL_origalen) { |
2089 | s = PL_origargv[0]; | |
79072805 LW |
2090 | s += strlen(s); |
2091 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2092 | for (i = 1; i < PL_origargc; i++) { |
2093 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2094 | #ifdef OS2 |
6b88bc9c | 2095 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2096 | #endif |
fb73857a | 2097 | ) |
379c4362 GS |
2098 | { |
2099 | ++s; | |
2100 | s += strlen(s); /* this one is ok too */ | |
2101 | } | |
fb73857a | 2102 | else |
2103 | break; | |
79072805 | 2104 | } |
bbce6d69 | 2105 | /* can grab env area too? */ |
3280af22 | 2106 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2107 | #ifdef OS2 |
6b88bc9c | 2108 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
ac27b0f5 | 2109 | #endif |
fb73857a | 2110 | )) { |
66b1d557 | 2111 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2112 | /* force copy of environment */ |
3280af22 | 2113 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2114 | if (PL_origenviron[i] == s + 1) { |
2115 | ++s; | |
2116 | s += strlen(s); | |
2117 | } | |
fb73857a | 2118 | else |
2119 | break; | |
79072805 | 2120 | } |
3280af22 | 2121 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2122 | } |
a0d0e21e | 2123 | s = SvPV_force(sv,len); |
8990e307 | 2124 | i = len; |
3280af22 NIS |
2125 | if (i >= PL_origalen) { |
2126 | i = PL_origalen; | |
fb73857a | 2127 | /* don't allow system to limit $0 seen by script */ |
2128 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2129 | Copy(s, PL_origargv[0], i, char); |
2130 | s = PL_origargv[0]+i; | |
fb73857a | 2131 | *s = '\0'; |
79072805 LW |
2132 | } |
2133 | else { | |
3280af22 NIS |
2134 | Copy(s, PL_origargv[0], i, char); |
2135 | s = PL_origargv[0]+i; | |
79072805 | 2136 | *s++ = '\0'; |
3280af22 | 2137 | while (++i < PL_origalen) |
8990e307 | 2138 | *s++ = ' '; |
3280af22 NIS |
2139 | s = PL_origargv[0]+i; |
2140 | for (i = 1; i < PL_origargc; i++) | |
2141 | PL_origargv[i] = Nullch; | |
79072805 LW |
2142 | } |
2143 | break; | |
cd39f2b6 | 2144 | #endif |
a863c7d1 MB |
2145 | #ifdef USE_THREADS |
2146 | case '@': | |
38a03e6e | 2147 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2148 | break; |
2149 | #endif /* USE_THREADS */ | |
79072805 LW |
2150 | } |
2151 | return 0; | |
2152 | } | |
2153 | ||
f93b4edd MB |
2154 | #ifdef USE_THREADS |
2155 | int | |
864dbfa3 | 2156 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2157 | { |
b900a521 JH |
2158 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2159 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2160 | PTR2UV(thr), PTR2UV(sv));) | |
f93b4edd | 2161 | if (MgOWNER(mg)) |
cea2e8a9 | 2162 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2163 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2164 | COND_DESTROY(MgCONDP(mg)); | |
2165 | return 0; | |
2166 | } | |
2167 | #endif /* USE_THREADS */ | |
2168 | ||
79072805 | 2169 | I32 |
864dbfa3 | 2170 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2171 | { |
2172 | register char **sigv; | |
2173 | ||
22c35a8c | 2174 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2175 | if (strEQ(sig,*sigv)) |
22c35a8c | 2176 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2177 | #ifdef SIGCLD |
2178 | if (strEQ(sig,"CHLD")) | |
2179 | return SIGCLD; | |
2180 | #endif | |
2181 | #ifdef SIGCHLD | |
2182 | if (strEQ(sig,"CLD")) | |
2183 | return SIGCHLD; | |
2184 | #endif | |
2185 | return 0; | |
2186 | } | |
2187 | ||
84902520 TB |
2188 | static SV* sig_sv; |
2189 | ||
ecfc5424 | 2190 | Signal_t |
cea2e8a9 | 2191 | Perl_sighandler(int sig) |
79072805 | 2192 | { |
71d280e3 GS |
2193 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2194 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ | |
2195 | #else | |
cea2e8a9 | 2196 | dTHX; |
71d280e3 | 2197 | #endif |
79072805 | 2198 | dSP; |
00d579c5 | 2199 | GV *gv = Nullgv; |
a0d0e21e | 2200 | HV *st; |
b7953727 | 2201 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2202 | CV *cv = Nullcv; |
533c011a | 2203 | OP *myop = PL_op; |
84902520 | 2204 | U32 flags = 0; |
155aba94 | 2205 | I32 o_save_i = PL_savestack_ix; |
3280af22 | 2206 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2207 | |
2208 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
2209 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ | |
2210 | #endif | |
ac27b0f5 | 2211 | |
3280af22 | 2212 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2213 | flags |= 1; |
3280af22 | 2214 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2215 | flags |= 4; |
3280af22 | 2216 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2217 | flags |= 8; |
3280af22 | 2218 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2219 | flags |= 16; |
2220 | ||
22c35a8c | 2221 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2222 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2223 | PL_sig_name[sig]); |
ff0cee69 | 2224 | |
84902520 TB |
2225 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2226 | infinity, so we fix 4 (in fact 5): */ | |
2227 | if (flags & 1) { | |
3280af22 NIS |
2228 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2229 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2230 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2231 | } |
ac27b0f5 | 2232 | if (flags & 4) |
3280af22 | 2233 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2234 | if (flags & 8) { |
3280af22 NIS |
2235 | PL_retstack_ix++; |
2236 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2237 | } |
2238 | if (flags & 16) | |
3280af22 | 2239 | PL_scopestack_ix += 1; |
84902520 | 2240 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2241 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2242 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2243 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2244 | |
a0d0e21e | 2245 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2246 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2247 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2248 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2249 | : ((cv && CvGV(cv)) |
2250 | ? GvENAME(CvGV(cv)) | |
2251 | : "__ANON__"))); | |
2252 | goto cleanup; | |
79072805 LW |
2253 | } |
2254 | ||
22c35a8c GS |
2255 | if(PL_psig_name[sig]) { |
2256 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2257 | flags |= 64; |
2258 | sig_sv = sv; | |
2259 | } else { | |
ff0cee69 | 2260 | sv = sv_newmortal(); |
22c35a8c | 2261 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2262 | } |
e336de0d | 2263 | |
e788e7d3 | 2264 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2265 | PUSHMARK(SP); |
79072805 | 2266 | PUSHs(sv); |
79072805 | 2267 | PUTBACK; |
a0d0e21e | 2268 | |
1b266415 | 2269 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2270 | |
d3acc0f7 | 2271 | POPSTACK; |
1b266415 | 2272 | if (SvTRUE(ERRSV)) { |
1d615522 | 2273 | #ifndef PERL_MICRO |
983dbef6 | 2274 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2275 | /* Handler "died", for example to get out of a restart-able read(). |
2276 | * Before we re-do that on its behalf re-enable the signal which was | |
2277 | * blocked by the system when we entered. | |
2278 | */ | |
2279 | sigset_t set; | |
2280 | sigemptyset(&set); | |
2281 | sigaddset(&set,sig); | |
2282 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2283 | #else | |
2284 | /* Not clear if this will work */ | |
2285 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2286 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2287 | #endif |
1d615522 | 2288 | #endif /* !PERL_MICRO */ |
1b266415 NIS |
2289 | Perl_die(aTHX_ Nullch); |
2290 | } | |
00d579c5 | 2291 | cleanup: |
84902520 | 2292 | if (flags & 1) |
3280af22 | 2293 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2294 | if (flags & 4) |
3280af22 | 2295 | PL_markstack_ptr--; |
ac27b0f5 | 2296 | if (flags & 8) |
3280af22 | 2297 | PL_retstack_ix--; |
84902520 | 2298 | if (flags & 16) |
3280af22 | 2299 | PL_scopestack_ix -= 1; |
84902520 TB |
2300 | if (flags & 64) |
2301 | SvREFCNT_dec(sv); | |
533c011a | 2302 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2303 | |
3280af22 NIS |
2304 | PL_Sv = tSv; /* Restore global temporaries. */ |
2305 | PL_Xpv = tXpv; | |
79072805 LW |
2306 | return; |
2307 | } | |
4e35701f NIS |
2308 | |
2309 | ||
51371543 | 2310 | #ifdef PERL_OBJECT |
51371543 GS |
2311 | #include "XSUB.h" |
2312 | #endif | |
2313 | ||
2314 | static void | |
2315 | restore_magic(pTHXo_ void *p) | |
2316 | { | |
48944bdf | 2317 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2318 | SV* sv = mgs->mgs_sv; |
2319 | ||
2320 | if (!sv) | |
2321 | return; | |
2322 | ||
2323 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2324 | { | |
2325 | if (mgs->mgs_flags) | |
2326 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2327 | else | |
2328 | mg_magical(sv); | |
2329 | if (SvGMAGICAL(sv)) | |
2330 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2331 | } | |
2332 | ||
2333 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2334 | ||
2335 | /* If we're still on top of the stack, pop us off. (That condition | |
2336 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2337 | * if it's being called via leave_scope.) | |
2338 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2339 | * may leave alloc gunk on the savestack, and some code | |
2340 | * (e.g. sighandler) doesn't expect that... | |
2341 | */ | |
2342 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2343 | { | |
2344 | I32 popval = SSPOPINT; | |
c76ac1ee | 2345 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2346 | PL_savestack_ix -= 2; |
2347 | popval = SSPOPINT; | |
2348 | assert(popval == SAVEt_ALLOC); | |
2349 | popval = SSPOPINT; | |
2350 | PL_savestack_ix -= popval; | |
2351 | } | |
2352 | ||
2353 | } | |
2354 | ||
2355 | static void | |
2356 | unwind_handler_stack(pTHXo_ void *p) | |
2357 | { | |
51371543 GS |
2358 | U32 flags = *(U32*)p; |
2359 | ||
2360 | if (flags & 1) | |
2361 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2362 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2363 | if (flags & 64) | |
2364 | SvREFCNT_dec(sig_sv); | |
2365 | } |