Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
cbdf9ef8 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others |
79072805 LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
13 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
14 | */ |
15 | ||
ccfc67b7 JH |
16 | /* |
17 | =head1 Magical Functions | |
166f8a29 DM |
18 | |
19 | "Magic" is special data attached to SV structures in order to give them | |
20 | "magical" properties. When any Perl code tries to read from, or assign to, | |
21 | an SV marked as magical, it calls the 'get' or 'set' function associated | |
22 | with that SV's magic. A get is called prior to reading an SV, in order to | |
ddfa107c | 23 | give it a chance to update its internal value (get on $. writes the line |
166f8a29 DM |
24 | number of the last read filehandle into to the SV's IV slot), while |
25 | set is called after an SV has been written to, in order to allow it to make | |
ddfa107c | 26 | use of its changed value (set on $/ copies the SV's new value to the |
166f8a29 DM |
27 | PL_rs global variable). |
28 | ||
29 | Magic is implemented as a linked list of MAGIC structures attached to the | |
30 | SV. Each MAGIC struct holds the type of the magic, a pointer to an array | |
31 | of functions that implement the get(), set(), length() etc functions, | |
32 | plus space for some flags and pointers. For example, a tied variable has | |
33 | a MAGIC structure that contains a pointer to the object associated with the | |
34 | tie. | |
35 | ||
ccfc67b7 JH |
36 | */ |
37 | ||
79072805 | 38 | #include "EXTERN.h" |
864dbfa3 | 39 | #define PERL_IN_MG_C |
79072805 LW |
40 | #include "perl.h" |
41 | ||
5cd24f17 | 42 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
43 | # ifndef NGROUPS |
44 | # define NGROUPS 32 | |
45 | # endif | |
b7953727 JH |
46 | # ifdef I_GRP |
47 | # include <grp.h> | |
48 | # endif | |
188ea221 CS |
49 | #endif |
50 | ||
17aa7f3d JH |
51 | #ifdef __hpux |
52 | # include <sys/pstat.h> | |
53 | #endif | |
54 | ||
e69880a5 CB |
55 | Signal_t Perl_csighandler(int sig); |
56 | ||
35a4481c AL |
57 | static void restore_magic(pTHX_ const void *p); |
58 | static void unwind_handler_stack(pTHX_ const void *p); | |
51371543 | 59 | |
9cffb111 OS |
60 | #ifdef __Lynx__ |
61 | /* Missing protos on LynxOS */ | |
62 | void setruid(uid_t id); | |
63 | void seteuid(uid_t id); | |
64 | void setrgid(uid_t id); | |
65 | void setegid(uid_t id); | |
66 | #endif | |
67 | ||
c07a80fd | 68 | /* |
69 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
70 | */ | |
71 | ||
72 | struct magic_state { | |
73 | SV* mgs_sv; | |
74 | U32 mgs_flags; | |
455ece5e | 75 | I32 mgs_ss_ix; |
c07a80fd | 76 | }; |
455ece5e | 77 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
78 | |
79 | STATIC void | |
8fb26106 | 80 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 81 | { |
455ece5e | 82 | MGS* mgs; |
c07a80fd | 83 | assert(SvMAGICAL(sv)); |
f8c7b90f | 84 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d NC |
85 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ |
86 | if (SvIsCOW(sv)) | |
87 | sv_force_normal(sv); | |
88 | #endif | |
c07a80fd | 89 | |
685f876f | 90 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
91 | |
92 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 93 | mgs->mgs_sv = sv; |
94 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 95 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 96 | |
97 | SvMAGICAL_off(sv); | |
98 | SvREADONLY_off(sv); | |
06759ea0 | 99 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 100 | } |
101 | ||
954c1994 GS |
102 | /* |
103 | =for apidoc mg_magical | |
104 | ||
105 | Turns on the magical status of an SV. See C<sv_magic>. | |
106 | ||
107 | =cut | |
108 | */ | |
109 | ||
8990e307 | 110 | void |
864dbfa3 | 111 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 | 112 | { |
e1ec3a88 | 113 | const MAGIC* mg; |
8990e307 | 114 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 115 | const MGVTBL* const vtbl = mg->mg_virtual; |
8990e307 | 116 | if (vtbl) { |
2b260de0 | 117 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
118 | SvGMAGICAL_on(sv); |
119 | if (vtbl->svt_set) | |
120 | SvSMAGICAL_on(sv); | |
2b260de0 | 121 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
122 | SvRMAGICAL_on(sv); |
123 | } | |
124 | } | |
125 | } | |
126 | ||
954c1994 GS |
127 | /* |
128 | =for apidoc mg_get | |
129 | ||
130 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
131 | ||
132 | =cut | |
133 | */ | |
134 | ||
79072805 | 135 | int |
864dbfa3 | 136 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 137 | { |
35a4481c | 138 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
fe2774ed | 139 | const bool was_temp = (bool)SvTEMP(sv); |
0723351e | 140 | int have_new = 0; |
ff76feab | 141 | MAGIC *newmg, *head, *cur, *mg; |
20135930 | 142 | /* guard against sv having being freed midway by holding a private |
6683b158 NC |
143 | reference. */ |
144 | ||
145 | /* sv_2mortal has this side effect of turning on the TEMP flag, which can | |
146 | cause the SV's buffer to get stolen (and maybe other stuff). | |
147 | So restore it. | |
148 | */ | |
149 | sv_2mortal(SvREFCNT_inc(sv)); | |
150 | if (!was_temp) { | |
151 | SvTEMP_off(sv); | |
152 | } | |
153 | ||
455ece5e | 154 | save_magic(mgs_ix, sv); |
463ee0b2 | 155 | |
ff76feab AMS |
156 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
157 | list of magic. svt_get() may delete the current entry, add new | |
158 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
159 | ||
160 | newmg = cur = head = mg = SvMAGIC(sv); | |
161 | while (mg) { | |
35a4481c | 162 | const MGVTBL * const vtbl = mg->mg_virtual; |
ff76feab | 163 | |
2b260de0 | 164 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 165 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 | 166 | |
58f82c5c DM |
167 | /* guard against magic having been deleted - eg FETCH calling |
168 | * untie */ | |
169 | if (!SvMAGIC(sv)) | |
170 | break; | |
b77f7d40 | 171 | |
ff76feab AMS |
172 | /* Don't restore the flags for this entry if it was deleted. */ |
173 | if (mg->mg_flags & MGf_GSKIP) | |
174 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 175 | } |
ff76feab AMS |
176 | |
177 | mg = mg->mg_moremagic; | |
178 | ||
0723351e | 179 | if (have_new) { |
ff76feab AMS |
180 | /* Have we finished with the new entries we saw? Start again |
181 | where we left off (unless there are more new entries). */ | |
182 | if (mg == head) { | |
0723351e | 183 | have_new = 0; |
ff76feab AMS |
184 | mg = cur; |
185 | head = newmg; | |
186 | } | |
187 | } | |
188 | ||
189 | /* Were any new entries added? */ | |
0723351e NC |
190 | if (!have_new && (newmg = SvMAGIC(sv)) != head) { |
191 | have_new = 1; | |
ff76feab AMS |
192 | cur = mg; |
193 | mg = newmg; | |
760ac839 | 194 | } |
79072805 | 195 | } |
463ee0b2 | 196 | |
acfe0abc | 197 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
6683b158 NC |
198 | |
199 | if (SvREFCNT(sv) == 1) { | |
200 | /* We hold the last reference to this SV, which implies that the | |
201 | SV was deleted as a side effect of the routines we called. */ | |
0c34ef67 | 202 | SvOK_off(sv); |
6683b158 | 203 | } |
79072805 LW |
204 | return 0; |
205 | } | |
206 | ||
954c1994 GS |
207 | /* |
208 | =for apidoc mg_set | |
209 | ||
210 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
211 | ||
212 | =cut | |
213 | */ | |
214 | ||
79072805 | 215 | int |
864dbfa3 | 216 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 217 | { |
35a4481c | 218 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 219 | MAGIC* mg; |
463ee0b2 LW |
220 | MAGIC* nextmg; |
221 | ||
455ece5e | 222 | save_magic(mgs_ix, sv); |
463ee0b2 LW |
223 | |
224 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
e1ec3a88 | 225 | const MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 226 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
227 | if (mg->mg_flags & MGf_GSKIP) { |
228 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 229 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 230 | } |
2b260de0 | 231 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 232 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 233 | } |
463ee0b2 | 234 | |
acfe0abc | 235 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
236 | return 0; |
237 | } | |
238 | ||
954c1994 GS |
239 | /* |
240 | =for apidoc mg_length | |
241 | ||
242 | Report on the SV's length. See C<sv_magic>. | |
243 | ||
244 | =cut | |
245 | */ | |
246 | ||
79072805 | 247 | U32 |
864dbfa3 | 248 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
249 | { |
250 | MAGIC* mg; | |
463ee0b2 | 251 | STRLEN len; |
463ee0b2 | 252 | |
79072805 | 253 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 254 | const MGVTBL * const vtbl = mg->mg_virtual; |
2b260de0 | 255 | if (vtbl && vtbl->svt_len) { |
35a4481c | 256 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
455ece5e | 257 | save_magic(mgs_ix, sv); |
a0d0e21e | 258 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 259 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 260 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
261 | return len; |
262 | } | |
263 | } | |
264 | ||
35a4481c | 265 | if (DO_UTF8(sv)) { |
10516c54 | 266 | const U8 *s = (U8*)SvPV_const(sv, len); |
5636d518 DB |
267 | len = Perl_utf8_length(aTHX_ s, s + len); |
268 | } | |
269 | else | |
10516c54 | 270 | (void)SvPV_const(sv, len); |
463ee0b2 | 271 | return len; |
79072805 LW |
272 | } |
273 | ||
8fb26106 | 274 | I32 |
864dbfa3 | 275 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
276 | { |
277 | MAGIC* mg; | |
ac27b0f5 | 278 | |
93965878 | 279 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 280 | const MGVTBL* const vtbl = mg->mg_virtual; |
2b260de0 | 281 | if (vtbl && vtbl->svt_len) { |
35a4481c AL |
282 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
283 | I32 len; | |
455ece5e | 284 | save_magic(mgs_ix, sv); |
93965878 | 285 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 286 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 287 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
288 | return len; |
289 | } | |
290 | } | |
291 | ||
292 | switch(SvTYPE(sv)) { | |
293 | case SVt_PVAV: | |
35a4481c | 294 | return AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
93965878 NIS |
295 | case SVt_PVHV: |
296 | /* FIXME */ | |
297 | default: | |
cea2e8a9 | 298 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
299 | break; |
300 | } | |
301 | return 0; | |
302 | } | |
303 | ||
954c1994 GS |
304 | /* |
305 | =for apidoc mg_clear | |
306 | ||
307 | Clear something magical that the SV represents. See C<sv_magic>. | |
308 | ||
309 | =cut | |
310 | */ | |
311 | ||
79072805 | 312 | int |
864dbfa3 | 313 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 314 | { |
35a4481c | 315 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 316 | MAGIC* mg; |
463ee0b2 | 317 | |
455ece5e | 318 | save_magic(mgs_ix, sv); |
463ee0b2 | 319 | |
79072805 | 320 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 321 | const MGVTBL* const vtbl = mg->mg_virtual; |
a0d0e21e | 322 | /* omit GSKIP -- never set here */ |
727405f8 | 323 | |
2b260de0 | 324 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 325 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 326 | } |
463ee0b2 | 327 | |
acfe0abc | 328 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
329 | return 0; |
330 | } | |
331 | ||
954c1994 GS |
332 | /* |
333 | =for apidoc mg_find | |
334 | ||
335 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
336 | ||
337 | =cut | |
338 | */ | |
339 | ||
93a17b20 | 340 | MAGIC* |
35a4481c | 341 | Perl_mg_find(pTHX_ const SV *sv, int type) |
93a17b20 | 342 | { |
35a4481c AL |
343 | if (sv) { |
344 | MAGIC *mg; | |
345 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
346 | if (mg->mg_type == type) | |
347 | return mg; | |
348 | } | |
93a17b20 LW |
349 | } |
350 | return 0; | |
351 | } | |
352 | ||
954c1994 GS |
353 | /* |
354 | =for apidoc mg_copy | |
355 | ||
356 | Copies the magic from one SV to another. See C<sv_magic>. | |
357 | ||
358 | =cut | |
359 | */ | |
360 | ||
79072805 | 361 | int |
864dbfa3 | 362 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 363 | { |
463ee0b2 | 364 | int count = 0; |
79072805 | 365 | MAGIC* mg; |
463ee0b2 | 366 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 367 | const MGVTBL* const vtbl = mg->mg_virtual; |
68795e93 NIS |
368 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
369 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
370 | } | |
371 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 372 | sv_magic(nsv, |
14befaf4 DM |
373 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
374 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
375 | ? sv : mg->mg_obj, | |
33c27489 | 376 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 377 | count++; |
79072805 | 378 | } |
79072805 | 379 | } |
463ee0b2 | 380 | return count; |
79072805 LW |
381 | } |
382 | ||
954c1994 GS |
383 | /* |
384 | =for apidoc mg_free | |
385 | ||
386 | Free any magic storage used by the SV. See C<sv_magic>. | |
387 | ||
388 | =cut | |
389 | */ | |
390 | ||
79072805 | 391 | int |
864dbfa3 | 392 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
393 | { |
394 | MAGIC* mg; | |
395 | MAGIC* moremagic; | |
396 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
35a4481c | 397 | const MGVTBL* const vtbl = mg->mg_virtual; |
79072805 | 398 | moremagic = mg->mg_moremagic; |
2b260de0 | 399 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 400 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 401 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
979acdb5 | 402 | if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8) |
88e89b8a | 403 | Safefree(mg->mg_ptr); |
565764a8 | 404 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 405 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 406 | } |
b881518d JH |
407 | if (mg->mg_flags & MGf_REFCOUNTED) |
408 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
409 | Safefree(mg); |
410 | } | |
b162af07 | 411 | SvMAGIC_set(sv, NULL); |
79072805 LW |
412 | return 0; |
413 | } | |
414 | ||
79072805 | 415 | #include <signal.h> |
79072805 | 416 | |
942e002e | 417 | U32 |
864dbfa3 | 418 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 419 | { |
35a4481c | 420 | register const REGEXP *rx; |
dd374669 | 421 | (void)sv; |
6cef1e77 | 422 | |
aaa362c4 | 423 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
424 | if (mg->mg_obj) /* @+ */ |
425 | return rx->nparens; | |
426 | else /* @- */ | |
427 | return rx->lastparen; | |
428 | } | |
ac27b0f5 | 429 | |
942e002e | 430 | return (U32)-1; |
6cef1e77 IZ |
431 | } |
432 | ||
433 | int | |
864dbfa3 | 434 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 435 | { |
6cef1e77 | 436 | register REGEXP *rx; |
6cef1e77 | 437 | |
aaa362c4 | 438 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
35a4481c AL |
439 | register const I32 paren = mg->mg_len; |
440 | register I32 s; | |
441 | register I32 t; | |
6cef1e77 IZ |
442 | if (paren < 0) |
443 | return 0; | |
eb160463 | 444 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
445 | (s = rx->startp[paren]) != -1 && |
446 | (t = rx->endp[paren]) != -1) | |
6cef1e77 | 447 | { |
35a4481c | 448 | register I32 i; |
6cef1e77 | 449 | if (mg->mg_obj) /* @+ */ |
cf93c79d | 450 | i = t; |
6cef1e77 | 451 | else /* @- */ |
cf93c79d | 452 | i = s; |
727405f8 | 453 | |
a30b2f1f | 454 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b | 455 | char *b = rx->subbeg; |
0064a8a9 JH |
456 | if (b) |
457 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 458 | } |
0064a8a9 JH |
459 | |
460 | sv_setiv(sv, i); | |
6cef1e77 IZ |
461 | } |
462 | } | |
463 | return 0; | |
464 | } | |
465 | ||
e4b89193 | 466 | int |
a29d06ed MG |
467 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
468 | { | |
dd374669 | 469 | (void)sv; (void)mg; |
a29d06ed | 470 | Perl_croak(aTHX_ PL_no_modify); |
0dbb1585 | 471 | NORETURN_FUNCTION_END; |
a29d06ed MG |
472 | } |
473 | ||
93a17b20 | 474 | U32 |
864dbfa3 | 475 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
476 | { |
477 | register I32 paren; | |
93a17b20 | 478 | register I32 i; |
dd374669 | 479 | register const REGEXP *rx; |
a197cbdd | 480 | I32 s1, t1; |
93a17b20 LW |
481 | |
482 | switch (*mg->mg_ptr) { | |
483 | case '1': case '2': case '3': case '4': | |
484 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 485 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 486 | |
ffc61ed2 | 487 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 488 | getparen: |
eb160463 | 489 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
490 | (s1 = rx->startp[paren]) != -1 && |
491 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 492 | { |
cf93c79d | 493 | i = t1 - s1; |
a197cbdd | 494 | getlen: |
a30b2f1f | 495 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
a28509cc | 496 | const char * const s = rx->subbeg + s1; |
768c67ee JH |
497 | const U8 *ep; |
498 | STRLEN el; | |
ffc61ed2 | 499 | |
6d5fa195 | 500 | i = t1 - s1; |
768c67ee JH |
501 | if (is_utf8_string_loclen((U8*)s, i, &ep, &el)) |
502 | i = el; | |
a197cbdd | 503 | } |
ffc61ed2 | 504 | if (i < 0) |
0844c848 | 505 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 506 | return i; |
93a17b20 | 507 | } |
235bddc8 NIS |
508 | else { |
509 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 510 | report_uninit(sv); |
235bddc8 NIS |
511 | } |
512 | } | |
513 | else { | |
514 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 515 | report_uninit(sv); |
93a17b20 | 516 | } |
748a9306 | 517 | return 0; |
93a17b20 | 518 | case '+': |
aaa362c4 | 519 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 520 | paren = rx->lastparen; |
13f57bf8 CS |
521 | if (paren) |
522 | goto getparen; | |
93a17b20 | 523 | } |
748a9306 | 524 | return 0; |
a01268b5 JH |
525 | case '\016': /* ^N */ |
526 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
527 | paren = rx->lastcloseparen; | |
528 | if (paren) | |
529 | goto getparen; | |
530 | } | |
531 | return 0; | |
93a17b20 | 532 | case '`': |
aaa362c4 | 533 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
534 | if (rx->startp[0] != -1) { |
535 | i = rx->startp[0]; | |
a197cbdd GS |
536 | if (i > 0) { |
537 | s1 = 0; | |
538 | t1 = i; | |
539 | goto getlen; | |
540 | } | |
93a17b20 | 541 | } |
93a17b20 | 542 | } |
748a9306 | 543 | return 0; |
93a17b20 | 544 | case '\'': |
aaa362c4 | 545 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
546 | if (rx->endp[0] != -1) { |
547 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
548 | if (i > 0) { |
549 | s1 = rx->endp[0]; | |
550 | t1 = rx->sublen; | |
551 | goto getlen; | |
552 | } | |
93a17b20 | 553 | } |
93a17b20 | 554 | } |
748a9306 | 555 | return 0; |
93a17b20 LW |
556 | } |
557 | magic_get(sv,mg); | |
2d8e6c8d | 558 | if (!SvPOK(sv) && SvNIOK(sv)) { |
8b6b16e7 | 559 | sv_2pv(sv, 0); |
2d8e6c8d | 560 | } |
93a17b20 LW |
561 | if (SvPOK(sv)) |
562 | return SvCUR(sv); | |
563 | return 0; | |
564 | } | |
565 | ||
79072805 | 566 | int |
864dbfa3 | 567 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 568 | { |
27da23d5 | 569 | dVAR; |
79072805 | 570 | register I32 paren; |
35272f84 | 571 | register char *s = NULL; |
79072805 | 572 | register I32 i; |
d9f97599 | 573 | register REGEXP *rx; |
79072805 LW |
574 | |
575 | switch (*mg->mg_ptr) { | |
748a9306 | 576 | case '\001': /* ^A */ |
3280af22 | 577 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 578 | break; |
e5218da5 GA |
579 | case '\003': /* ^C, ^CHILD_ERROR_NATIVE */ |
580 | if (*(mg->mg_ptr+1) == '\0') { | |
581 | sv_setiv(sv, (IV)PL_minus_c); | |
582 | } | |
583 | else if (strEQ(mg->mg_ptr, "\003HILD_ERROR_NATIVE")) { | |
584 | sv_setiv(sv, (IV)STATUS_NATIVE); | |
585 | } | |
49460fe6 NIS |
586 | break; |
587 | ||
79072805 | 588 | case '\004': /* ^D */ |
aea4f609 | 589 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
79072805 | 590 | break; |
28f23441 | 591 | case '\005': /* ^E */ |
0a378802 | 592 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 593 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
594 | { |
595 | char msg[256]; | |
727405f8 | 596 | |
0a378802 | 597 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 598 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 599 | } |
727405f8 | 600 | #else |
28f23441 | 601 | #ifdef VMS |
0a378802 JH |
602 | { |
603 | # include <descrip.h> | |
604 | # include <starlet.h> | |
605 | char msg[255]; | |
606 | $DESCRIPTOR(msgdsc,msg); | |
607 | sv_setnv(sv,(NV) vaxc$errno); | |
608 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
609 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
610 | else | |
c69006e4 | 611 | sv_setpvn(sv,"",0); |
0a378802 | 612 | } |
28f23441 | 613 | #else |
88e89b8a | 614 | #ifdef OS2 |
0a378802 JH |
615 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
616 | sv_setnv(sv, (NV)errno); | |
617 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
618 | } else { | |
619 | if (errno != errno_isOS2) { | |
620 | int tmp = _syserrno(); | |
621 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
622 | Perl_rc = tmp; | |
623 | } | |
624 | sv_setnv(sv, (NV)Perl_rc); | |
625 | sv_setpv(sv, os2error(Perl_rc)); | |
626 | } | |
88e89b8a | 627 | #else |
22fae026 | 628 | #ifdef WIN32 |
0a378802 JH |
629 | { |
630 | DWORD dwErr = GetLastError(); | |
631 | sv_setnv(sv, (NV)dwErr); | |
632 | if (dwErr) | |
633 | { | |
634 | PerlProc_GetOSError(sv, dwErr); | |
635 | } | |
636 | else | |
c69006e4 | 637 | sv_setpvn(sv, "", 0); |
0a378802 JH |
638 | SetLastError(dwErr); |
639 | } | |
22fae026 | 640 | #else |
f6c8f21d RGS |
641 | { |
642 | int saveerrno = errno; | |
643 | sv_setnv(sv, (NV)errno); | |
644 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
645 | errno = saveerrno; | |
646 | } | |
28f23441 | 647 | #endif |
88e89b8a | 648 | #endif |
22fae026 | 649 | #endif |
cd39f2b6 | 650 | #endif |
0a378802 JH |
651 | SvNOK_on(sv); /* what a wonderful hack! */ |
652 | } | |
653 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
654 | sv_setsv(sv, PL_encoding); | |
655 | break; | |
79072805 | 656 | case '\006': /* ^F */ |
3280af22 | 657 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 658 | break; |
a0d0e21e | 659 | case '\010': /* ^H */ |
3280af22 | 660 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 661 | break; |
9d116dd7 | 662 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
663 | if (PL_inplace) |
664 | sv_setpv(sv, PL_inplace); | |
79072805 | 665 | else |
3280af22 | 666 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 667 | break; |
ac27b0f5 | 668 | case '\017': /* ^O & ^OPEN */ |
3511154c | 669 | if (*(mg->mg_ptr+1) == '\0') { |
ac27b0f5 | 670 | sv_setpv(sv, PL_osname); |
3511154c DM |
671 | SvTAINTED_off(sv); |
672 | } | |
ac27b0f5 NIS |
673 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
674 | if (!PL_compiling.cop_io) | |
675 | sv_setsv(sv, &PL_sv_undef); | |
676 | else { | |
677 | sv_setsv(sv, PL_compiling.cop_io); | |
678 | } | |
679 | } | |
28f23441 | 680 | break; |
79072805 | 681 | case '\020': /* ^P */ |
3280af22 | 682 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 683 | break; |
fb73857a | 684 | case '\023': /* ^S */ |
4ffa73a3 | 685 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 686 | if (PL_lex_state != LEX_NOTPARSING) |
0c34ef67 | 687 | SvOK_off(sv); |
3280af22 | 688 | else if (PL_in_eval) |
6dc8a9e4 | 689 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
690 | else |
691 | sv_setiv(sv, 0); | |
d58bf5aa | 692 | } |
fb73857a | 693 | break; |
79072805 | 694 | case '\024': /* ^T */ |
7c36658b | 695 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 696 | #ifdef BIG_TIME |
7c36658b | 697 | sv_setnv(sv, PL_basetime); |
88e89b8a | 698 | #else |
7c36658b | 699 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 700 | #endif |
7c36658b MS |
701 | } |
702 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
703 | sv_setiv(sv, PL_tainting |
704 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
705 | : 0); | |
7c36658b | 706 | break; |
7cebcbc0 | 707 | case '\025': /* $^UNICODE, $^UTF8LOCALE */ |
a05d7ebb JH |
708 | if (strEQ(mg->mg_ptr, "\025NICODE")) |
709 | sv_setuv(sv, (UV) PL_unicode); | |
7cebcbc0 NC |
710 | else if (strEQ(mg->mg_ptr, "\025TF8LOCALE")) |
711 | sv_setuv(sv, (UV) PL_utf8locale); | |
fde18df1 JH |
712 | break; |
713 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
714 | if (*(mg->mg_ptr+1) == '\0') |
715 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 716 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
717 | if (PL_compiling.cop_warnings == pWARN_NONE || |
718 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
719 | { |
720 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
721 | } | |
d3a7d8c7 | 722 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
723 | /* Get the bit mask for $warnings::Bits{all}, because |
724 | * it could have been extended by warnings::register */ | |
725 | SV **bits_all; | |
726 | HV *bits=get_hv("warnings::Bits", FALSE); | |
727 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
728 | sv_setsv(sv, *bits_all); | |
729 | } | |
730 | else { | |
731 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
732 | } | |
ac27b0f5 | 733 | } |
4438c4b7 JH |
734 | else { |
735 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 736 | } |
d3a7d8c7 | 737 | SvPOK_only(sv); |
4438c4b7 | 738 | } |
79072805 LW |
739 | break; |
740 | case '1': case '2': case '3': case '4': | |
741 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 742 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
743 | I32 s1, t1; |
744 | ||
a863c7d1 MB |
745 | /* |
746 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
747 | * XXX Does the new way break anything? | |
748 | */ | |
ffc61ed2 | 749 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 750 | getparen: |
eb160463 | 751 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
752 | (s1 = rx->startp[paren]) != -1 && |
753 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 754 | { |
cf93c79d IZ |
755 | i = t1 - s1; |
756 | s = rx->subbeg + s1; | |
01ec43d0 | 757 | if (!rx->subbeg) |
c2e66d9e GS |
758 | break; |
759 | ||
13f57bf8 | 760 | getrx: |
748a9306 | 761 | if (i >= 0) { |
cf93c79d | 762 | sv_setpvn(sv, s, i); |
a30b2f1f | 763 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
764 | SvUTF8_on(sv); |
765 | else | |
766 | SvUTF8_off(sv); | |
e9814ee1 HS |
767 | if (PL_tainting) { |
768 | if (RX_MATCH_TAINTED(rx)) { | |
769 | MAGIC* mg = SvMAGIC(sv); | |
770 | MAGIC* mgt; | |
771 | PL_tainted = 1; | |
b162af07 | 772 | SvMAGIC_set(sv, mg->mg_moremagic); |
e9814ee1 HS |
773 | SvTAINT(sv); |
774 | if ((mgt = SvMAGIC(sv))) { | |
775 | mg->mg_moremagic = mgt; | |
b162af07 | 776 | SvMAGIC_set(sv, mg); |
e9814ee1 HS |
777 | } |
778 | } else | |
779 | SvTAINTED_off(sv); | |
780 | } | |
748a9306 LW |
781 | break; |
782 | } | |
79072805 | 783 | } |
79072805 | 784 | } |
3280af22 | 785 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
786 | break; |
787 | case '+': | |
aaa362c4 | 788 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 789 | paren = rx->lastparen; |
a0d0e21e LW |
790 | if (paren) |
791 | goto getparen; | |
79072805 | 792 | } |
3280af22 | 793 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 794 | break; |
a01268b5 JH |
795 | case '\016': /* ^N */ |
796 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
797 | paren = rx->lastcloseparen; | |
798 | if (paren) | |
799 | goto getparen; | |
800 | } | |
801 | sv_setsv(sv,&PL_sv_undef); | |
802 | break; | |
79072805 | 803 | case '`': |
aaa362c4 | 804 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
805 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
806 | i = rx->startp[0]; | |
13f57bf8 | 807 | goto getrx; |
79072805 | 808 | } |
79072805 | 809 | } |
3280af22 | 810 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
811 | break; |
812 | case '\'': | |
aaa362c4 | 813 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
814 | if (rx->subbeg && rx->endp[0] != -1) { |
815 | s = rx->subbeg + rx->endp[0]; | |
816 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 817 | goto getrx; |
79072805 | 818 | } |
79072805 | 819 | } |
3280af22 | 820 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
821 | break; |
822 | case '.': | |
3280af22 | 823 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 824 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 | 825 | } |
79072805 LW |
826 | break; |
827 | case '?': | |
809a5acc | 828 | { |
809a5acc | 829 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 830 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
831 | LvTARGOFF(sv) = PL_statusvalue; |
832 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 833 | #endif |
809a5acc | 834 | } |
79072805 LW |
835 | break; |
836 | case '^': | |
0daa599b RGS |
837 | if (GvIOp(PL_defoutgv)) |
838 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
839 | if (s) |
840 | sv_setpv(sv,s); | |
841 | else { | |
3280af22 | 842 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
843 | sv_catpv(sv,"_TOP"); |
844 | } | |
845 | break; | |
846 | case '~': | |
0daa599b RGS |
847 | if (GvIOp(PL_defoutgv)) |
848 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 849 | if (!s) |
3280af22 | 850 | s = GvENAME(PL_defoutgv); |
79072805 LW |
851 | sv_setpv(sv,s); |
852 | break; | |
79072805 | 853 | case '=': |
0daa599b RGS |
854 | if (GvIOp(PL_defoutgv)) |
855 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
856 | break; |
857 | case '-': | |
0daa599b RGS |
858 | if (GvIOp(PL_defoutgv)) |
859 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
860 | break; |
861 | case '%': | |
0daa599b RGS |
862 | if (GvIOp(PL_defoutgv)) |
863 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 | 864 | break; |
79072805 LW |
865 | case ':': |
866 | break; | |
867 | case '/': | |
868 | break; | |
869 | case '[': | |
3280af22 | 870 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
871 | break; |
872 | case '|': | |
0daa599b RGS |
873 | if (GvIOp(PL_defoutgv)) |
874 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
875 | break; |
876 | case ',': | |
79072805 LW |
877 | break; |
878 | case '\\': | |
b2ce0fda | 879 | if (PL_ors_sv) |
f28098ff | 880 | sv_copypv(sv, PL_ors_sv); |
79072805 | 881 | break; |
79072805 | 882 | case '!': |
a5f75d66 | 883 | #ifdef VMS |
65202027 | 884 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 885 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 886 | #else |
88e89b8a | 887 | { |
888 | int saveerrno = errno; | |
65202027 | 889 | sv_setnv(sv, (NV)errno); |
88e89b8a | 890 | #ifdef OS2 |
ed344e4f IZ |
891 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
892 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 893 | else |
a5f75d66 | 894 | #endif |
2304df62 | 895 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 896 | errno = saveerrno; |
897 | } | |
898 | #endif | |
946ec16e | 899 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
900 | break; |
901 | case '<': | |
3280af22 | 902 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
903 | break; |
904 | case '>': | |
3280af22 | 905 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
906 | break; |
907 | case '(': | |
3280af22 | 908 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 909 | #ifdef HAS_GETGROUPS |
a3b680e6 | 910 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_gid); |
a52cb5f7 | 911 | #endif |
79072805 LW |
912 | goto add_groups; |
913 | case ')': | |
3280af22 | 914 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 915 | #ifdef HAS_GETGROUPS |
a3b680e6 | 916 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_egid); |
a52cb5f7 | 917 | #endif |
79072805 | 918 | add_groups: |
79072805 | 919 | #ifdef HAS_GETGROUPS |
79072805 | 920 | { |
a0d0e21e | 921 | Groups_t gary[NGROUPS]; |
a3b680e6 AL |
922 | I32 j = getgroups(NGROUPS,gary); |
923 | while (--j >= 0) | |
924 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, (long unsigned int)gary[j]); | |
79072805 LW |
925 | } |
926 | #endif | |
155aba94 | 927 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 | 928 | break; |
cd39f2b6 | 929 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
930 | case '0': |
931 | break; | |
cd39f2b6 | 932 | #endif |
79072805 | 933 | } |
a0d0e21e | 934 | return 0; |
79072805 LW |
935 | } |
936 | ||
937 | int | |
864dbfa3 | 938 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
939 | { |
940 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
941 | ||
942 | if (uf && uf->uf_val) | |
24f81a43 | 943 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
944 | return 0; |
945 | } | |
946 | ||
947 | int | |
864dbfa3 | 948 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 949 | { |
27da23d5 | 950 | dVAR; |
b83604b4 | 951 | const char *s; |
e62f0680 | 952 | const char *ptr; |
5aabfad6 | 953 | STRLEN len, klen; |
1e422769 | 954 | |
b83604b4 | 955 | s = SvPV_const(sv,len); |
e62f0680 | 956 | ptr = MgPV_const(mg,klen); |
88e89b8a | 957 | my_setenv(ptr, s); |
1e422769 | 958 | |
a0d0e21e LW |
959 | #ifdef DYNAMIC_ENV_FETCH |
960 | /* We just undefd an environment var. Is a replacement */ | |
961 | /* waiting in the wings? */ | |
962 | if (!len) { | |
5aabfad6 | 963 | SV **valp; |
6b88bc9c | 964 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
b83604b4 | 965 | s = SvPV_const(*valp, len); |
a0d0e21e LW |
966 | } |
967 | #endif | |
1e422769 | 968 | |
39e571d4 | 969 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
970 | /* And you'll never guess what the dog had */ |
971 | /* in its mouth... */ | |
3280af22 | 972 | if (PL_tainting) { |
1e422769 | 973 | MgTAINTEDDIR_off(mg); |
974 | #ifdef VMS | |
5aabfad6 | 975 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 976 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 977 | Stat_t sbuf; |
1e422769 | 978 | int i = 0, j = 0; |
979 | ||
980 | do { /* DCL$PATH may be a search list */ | |
981 | while (1) { /* as may dev portion of any element */ | |
982 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
983 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
984 | cando_by_name(S_IWUSR,0,elt) ) { | |
985 | MgTAINTEDDIR_on(mg); | |
986 | return 0; | |
987 | } | |
988 | } | |
989 | if ((cp = strchr(elt, ':')) != Nullch) | |
990 | *cp = '\0'; | |
991 | if (my_trnlnm(elt, eltbuf, j++)) | |
992 | elt = eltbuf; | |
993 | else | |
994 | break; | |
995 | } | |
996 | j = 0; | |
997 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
998 | } | |
999 | #endif /* VMS */ | |
5aabfad6 | 1000 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
b83604b4 | 1001 | const char *strend = s + len; |
463ee0b2 LW |
1002 | |
1003 | while (s < strend) { | |
96827780 | 1004 | char tmpbuf[256]; |
c623ac67 | 1005 | Stat_t st; |
5f74f29c | 1006 | I32 i; |
96827780 | 1007 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 1008 | s, strend, ':', &i); |
463ee0b2 | 1009 | s++; |
96827780 MB |
1010 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
1011 | || *tmpbuf != '/' | |
c6ed36e1 | 1012 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 1013 | MgTAINTEDDIR_on(mg); |
1e422769 | 1014 | return 0; |
1015 | } | |
463ee0b2 | 1016 | } |
79072805 LW |
1017 | } |
1018 | } | |
39e571d4 | 1019 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1020 | |
79072805 LW |
1021 | return 0; |
1022 | } | |
1023 | ||
1024 | int | |
864dbfa3 | 1025 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1026 | { |
dd374669 | 1027 | (void)sv; |
01b8bcb7 | 1028 | my_setenv(MgPV_nolen_const(mg),Nullch); |
85e6fe83 LW |
1029 | return 0; |
1030 | } | |
1031 | ||
88e89b8a | 1032 | int |
864dbfa3 | 1033 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1034 | { |
27da23d5 | 1035 | #if defined(VMS) || defined(EPOC) || defined(SYMBIAN) |
cea2e8a9 | 1036 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1037 | #else |
3280af22 | 1038 | if (PL_localizing) { |
fb73857a | 1039 | HE* entry; |
1040 | magic_clear_all_env(sv,mg); | |
1041 | hv_iterinit((HV*)sv); | |
155aba94 | 1042 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1043 | I32 keylen; |
1044 | my_setenv(hv_iterkey(entry, &keylen), | |
b83604b4 | 1045 | SvPV_nolen_const(hv_iterval((HV*)sv, entry))); |
fb73857a | 1046 | } |
1047 | } | |
1048 | #endif | |
1049 | return 0; | |
1050 | } | |
1051 | ||
1052 | int | |
864dbfa3 | 1053 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1054 | { |
27da23d5 | 1055 | dVAR; |
2f42fcb0 | 1056 | #ifndef PERL_MICRO |
27da23d5 | 1057 | #if defined(VMS) || defined(EPOC) || defined(SYMBIAN) |
cea2e8a9 | 1058 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1059 | #else |
4efc5df6 | 1060 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1061 | PerlEnv_clearenv(); |
4efc5df6 GS |
1062 | # else |
1063 | # ifdef USE_ENVIRON_ARRAY | |
1064 | # if defined(USE_ITHREADS) | |
1065 | /* only the parent thread can clobber the process environment */ | |
1066 | if (PL_curinterp == aTHX) | |
1067 | # endif | |
1068 | { | |
1069 | # ifndef PERL_USE_SAFE_PUTENV | |
50acdf95 | 1070 | if (!PL_use_safe_putenv) { |
66b1d557 HM |
1071 | I32 i; |
1072 | ||
3280af22 | 1073 | if (environ == PL_origenviron) |
f2517201 | 1074 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1075 | else |
1076 | for (i = 0; environ[i]; i++) | |
f2517201 | 1077 | safesysfree(environ[i]); |
50acdf95 | 1078 | } |
4efc5df6 | 1079 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1080 | |
66b1d557 | 1081 | environ[0] = Nullch; |
4efc5df6 GS |
1082 | } |
1083 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 | 1084 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
2f42fcb0 JH |
1085 | #endif /* VMS || EPOC */ |
1086 | #endif /* !PERL_MICRO */ | |
dd374669 AL |
1087 | (void)sv; |
1088 | (void)mg; | |
3e3baf6d | 1089 | return 0; |
66b1d557 HM |
1090 | } |
1091 | ||
64ca3a65 | 1092 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1093 | #ifdef HAS_SIGPROCMASK |
1094 | static void | |
1095 | restore_sigmask(pTHX_ SV *save_sv) | |
1096 | { | |
b83604b4 | 1097 | const sigset_t *ossetp = (const sigset_t *) SvPV_nolen_const( save_sv ); |
2d4fcd5e AJ |
1098 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); |
1099 | } | |
1100 | #endif | |
66b1d557 | 1101 | int |
864dbfa3 | 1102 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1103 | { |
1104 | I32 i; | |
1105 | /* Are we fetching a signal entry? */ | |
01b8bcb7 | 1106 | i = whichsig(MgPV_nolen_const(mg)); |
e02bfb16 | 1107 | if (i > 0) { |
22c35a8c GS |
1108 | if(PL_psig_ptr[i]) |
1109 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1110 | else { |
85b332e2 | 1111 | Sighandler_t sigstate; |
2e34cc90 | 1112 | sigstate = rsignal_state(i); |
23ada85b | 1113 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1114 | if (PL_sig_handlers_initted && PL_sig_ignoring[i]) sigstate = SIG_IGN; |
2e34cc90 CL |
1115 | #endif |
1116 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1117 | if (PL_sig_handlers_initted && PL_sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 | 1118 | #endif |
88e89b8a | 1119 | /* cache state so we don't fetch it again */ |
ff68c719 | 1120 | if(sigstate == SIG_IGN) |
88e89b8a | 1121 | sv_setpv(sv,"IGNORE"); |
1122 | else | |
3280af22 | 1123 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1124 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1125 | SvTEMP_off(sv); |
1126 | } | |
1127 | } | |
1128 | return 0; | |
1129 | } | |
1130 | int | |
864dbfa3 | 1131 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1132 | { |
2d4fcd5e AJ |
1133 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1134 | * refactoring might be in order. | |
1135 | */ | |
27da23d5 | 1136 | dVAR; |
01b8bcb7 | 1137 | register const char *s = MgPV_nolen_const(mg); |
dd374669 | 1138 | (void)sv; |
2d4fcd5e | 1139 | if (*s == '_') { |
27da23d5 | 1140 | SV** svp = 0; |
2d4fcd5e AJ |
1141 | if (strEQ(s,"__DIE__")) |
1142 | svp = &PL_diehook; | |
1143 | else if (strEQ(s,"__WARN__")) | |
1144 | svp = &PL_warnhook; | |
1145 | else | |
1146 | Perl_croak(aTHX_ "No such hook: %s", s); | |
27da23d5 | 1147 | if (svp && *svp) { |
dd374669 | 1148 | SV *to_dec = *svp; |
2d4fcd5e AJ |
1149 | *svp = 0; |
1150 | SvREFCNT_dec(to_dec); | |
1151 | } | |
1152 | } | |
1153 | else { | |
1154 | I32 i; | |
1155 | /* Are we clearing a signal entry? */ | |
1156 | i = whichsig(s); | |
e02bfb16 | 1157 | if (i > 0) { |
2d4fcd5e AJ |
1158 | #ifdef HAS_SIGPROCMASK |
1159 | sigset_t set, save; | |
1160 | SV* save_sv; | |
1161 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1162 | sigemptyset(&set); | |
1163 | sigaddset(&set,i); | |
1164 | sigprocmask(SIG_BLOCK, &set, &save); | |
1165 | ENTER; | |
1166 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1167 | SAVEFREESV(save_sv); | |
1168 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1169 | #endif | |
1170 | PERL_ASYNC_CHECK(); | |
1171 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
27da23d5 | 1172 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2d4fcd5e AJ |
1173 | #endif |
1174 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1175 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1176 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1177 | #else |
1178 | (void)rsignal(i, SIG_DFL); | |
1179 | #endif | |
1180 | if(PL_psig_name[i]) { | |
1181 | SvREFCNT_dec(PL_psig_name[i]); | |
1182 | PL_psig_name[i]=0; | |
1183 | } | |
1184 | if(PL_psig_ptr[i]) { | |
dd374669 | 1185 | SV *to_dec=PL_psig_ptr[i]; |
2d4fcd5e AJ |
1186 | PL_psig_ptr[i]=0; |
1187 | LEAVE; | |
1188 | SvREFCNT_dec(to_dec); | |
1189 | } | |
1190 | else | |
1191 | LEAVE; | |
1192 | } | |
88e89b8a | 1193 | } |
1194 | return 0; | |
1195 | } | |
3d37d572 | 1196 | |
dd374669 AL |
1197 | static void |
1198 | S_raise_signal(pTHX_ int sig) | |
0a8e0eff NIS |
1199 | { |
1200 | /* Set a flag to say this signal is pending */ | |
1201 | PL_psig_pend[sig]++; | |
1202 | /* And one to say _a_ signal is pending */ | |
1203 | PL_sig_pending = 1; | |
1204 | } | |
1205 | ||
1206 | Signal_t | |
1207 | Perl_csighandler(int sig) | |
1208 | { | |
1018e26f NIS |
1209 | #ifdef PERL_GET_SIG_CONTEXT |
1210 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1211 | #else | |
85b332e2 CL |
1212 | dTHX; |
1213 | #endif | |
23ada85b | 1214 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc | 1215 | (void) rsignal(sig, PL_csighandlerp); |
27da23d5 | 1216 | if (PL_sig_ignoring[sig]) return; |
85b332e2 | 1217 | #endif |
2e34cc90 | 1218 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1219 | if (PL_sig_defaulting[sig]) |
2e34cc90 CL |
1220 | #ifdef KILL_BY_SIGPRC |
1221 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1222 | #else | |
1223 | exit(1); | |
1224 | #endif | |
1225 | #endif | |
4ffa73a3 JH |
1226 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1227 | /* Call the perl level handler now-- | |
1228 | * with risk we may be in malloc() etc. */ | |
1229 | (*PL_sighandlerp)(sig); | |
1230 | else | |
dd374669 | 1231 | S_raise_signal(aTHX_ sig); |
0a8e0eff NIS |
1232 | } |
1233 | ||
2e34cc90 CL |
1234 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1235 | void | |
1236 | Perl_csighandler_init(void) | |
1237 | { | |
1238 | int sig; | |
27da23d5 | 1239 | if (PL_sig_handlers_initted) return; |
2e34cc90 CL |
1240 | |
1241 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1242 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1243 | dTHX; |
27da23d5 | 1244 | PL_sig_defaulting[sig] = 1; |
5c1546dc | 1245 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1246 | #endif |
1247 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
27da23d5 | 1248 | PL_sig_ignoring[sig] = 0; |
2e34cc90 CL |
1249 | #endif |
1250 | } | |
27da23d5 | 1251 | PL_sig_handlers_initted = 1; |
2e34cc90 CL |
1252 | } |
1253 | #endif | |
1254 | ||
0a8e0eff NIS |
1255 | void |
1256 | Perl_despatch_signals(pTHX) | |
1257 | { | |
1258 | int sig; | |
1259 | PL_sig_pending = 0; | |
1260 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1261 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1262 | PERL_BLOCKSIG_ADD(set, sig); |
1263 | PL_psig_pend[sig] = 0; | |
1264 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1265 | (*PL_sighandlerp)(sig); |
25da4428 | 1266 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1267 | } |
1268 | } | |
1269 | } | |
1270 | ||
85e6fe83 | 1271 | int |
864dbfa3 | 1272 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1273 | { |
27da23d5 | 1274 | dVAR; |
79072805 | 1275 | I32 i; |
b7953727 | 1276 | SV** svp = 0; |
2d4fcd5e AJ |
1277 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1278 | * effects (due to closures). We must make sure that the new disposition | |
1279 | * is in place before it is called. | |
1280 | */ | |
1281 | SV* to_dec = 0; | |
e72dc28c | 1282 | STRLEN len; |
2d4fcd5e AJ |
1283 | #ifdef HAS_SIGPROCMASK |
1284 | sigset_t set, save; | |
1285 | SV* save_sv; | |
1286 | #endif | |
a0d0e21e | 1287 | |
d5263905 | 1288 | register const char *s = MgPV_const(mg,len); |
748a9306 LW |
1289 | if (*s == '_') { |
1290 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1291 | svp = &PL_diehook; |
748a9306 | 1292 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1293 | svp = &PL_warnhook; |
748a9306 | 1294 | else |
cea2e8a9 | 1295 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1296 | i = 0; |
4633a7c4 | 1297 | if (*svp) { |
2d4fcd5e | 1298 | to_dec = *svp; |
4633a7c4 LW |
1299 | *svp = 0; |
1300 | } | |
748a9306 LW |
1301 | } |
1302 | else { | |
1303 | i = whichsig(s); /* ...no, a brick */ | |
86d86cad | 1304 | if (i <= 0) { |
e476b1b5 | 1305 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1306 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1307 | return 0; |
1308 | } | |
2d4fcd5e AJ |
1309 | #ifdef HAS_SIGPROCMASK |
1310 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1311 | sigemptyset(&set); | |
1312 | sigaddset(&set,i); | |
1313 | sigprocmask(SIG_BLOCK, &set, &save); | |
1314 | ENTER; | |
1315 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1316 | SAVEFREESV(save_sv); | |
1317 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1318 | #endif | |
1319 | PERL_ASYNC_CHECK(); | |
2e34cc90 | 1320 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
27da23d5 | 1321 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2e34cc90 | 1322 | #endif |
23ada85b | 1323 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1324 | PL_sig_ignoring[i] = 0; |
85b332e2 | 1325 | #endif |
2e34cc90 | 1326 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1327 | PL_sig_defaulting[i] = 0; |
2e34cc90 | 1328 | #endif |
22c35a8c | 1329 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1330 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1331 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1332 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1333 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1334 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1335 | } |
a0d0e21e | 1336 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1337 | if (i) { |
5c1546dc | 1338 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1339 | #ifdef HAS_SIGPROCMASK |
1340 | LEAVE; | |
1341 | #endif | |
1342 | } | |
748a9306 LW |
1343 | else |
1344 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1345 | if(to_dec) |
1346 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1347 | return 0; |
1348 | } | |
e72dc28c | 1349 | s = SvPV_force(sv,len); |
748a9306 | 1350 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1351 | if (i) { |
23ada85b | 1352 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1353 | PL_sig_ignoring[i] = 1; |
5c1546dc | 1354 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1355 | #else |
ff68c719 | 1356 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1357 | #endif |
2d4fcd5e | 1358 | } |
748a9306 LW |
1359 | } |
1360 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1361 | if (i) | |
2e34cc90 CL |
1362 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1363 | { | |
27da23d5 | 1364 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1365 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1366 | } |
1367 | #else | |
ff68c719 | 1368 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1369 | #endif |
748a9306 | 1370 | } |
79072805 | 1371 | else { |
5aabfad6 | 1372 | /* |
1373 | * We should warn if HINT_STRICT_REFS, but without | |
1374 | * access to a known hint bit in a known OP, we can't | |
1375 | * tell whether HINT_STRICT_REFS is in force or not. | |
1376 | */ | |
46fc3d4c | 1377 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1378 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1379 | if (i) |
5c1546dc | 1380 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1381 | else |
1382 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1383 | } |
2d4fcd5e AJ |
1384 | #ifdef HAS_SIGPROCMASK |
1385 | if(i) | |
1386 | LEAVE; | |
1387 | #endif | |
1388 | if(to_dec) | |
1389 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1390 | return 0; |
1391 | } | |
64ca3a65 | 1392 | #endif /* !PERL_MICRO */ |
79072805 LW |
1393 | |
1394 | int | |
864dbfa3 | 1395 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1396 | { |
dd374669 AL |
1397 | (void)sv; |
1398 | (void)mg; | |
3280af22 | 1399 | PL_sub_generation++; |
463ee0b2 LW |
1400 | return 0; |
1401 | } | |
1402 | ||
1403 | int | |
864dbfa3 | 1404 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1405 | { |
dd374669 AL |
1406 | (void)sv; |
1407 | (void)mg; | |
a0d0e21e | 1408 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1409 | PL_amagic_generation++; |
463ee0b2 | 1410 | |
a0d0e21e LW |
1411 | return 0; |
1412 | } | |
463ee0b2 | 1413 | |
946ec16e | 1414 | int |
864dbfa3 | 1415 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1416 | { |
dd374669 | 1417 | HV * const hv = (HV*)LvTARG(sv); |
6ff81951 | 1418 | I32 i = 0; |
dd374669 | 1419 | (void)mg; |
7719e241 | 1420 | |
6ff81951 | 1421 | if (hv) { |
497b47a8 JH |
1422 | (void) hv_iterinit(hv); |
1423 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1424 | i = HvKEYS(hv); | |
1425 | else { | |
1426 | while (hv_iternext(hv)) | |
1427 | i++; | |
1428 | } | |
6ff81951 GS |
1429 | } |
1430 | ||
1431 | sv_setiv(sv, (IV)i); | |
1432 | return 0; | |
1433 | } | |
1434 | ||
1435 | int | |
864dbfa3 | 1436 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1437 | { |
dd374669 | 1438 | (void)mg; |
946ec16e | 1439 | if (LvTARG(sv)) { |
1440 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1441 | } |
1442 | return 0; | |
ac27b0f5 | 1443 | } |
946ec16e | 1444 | |
e336de0d | 1445 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1446 | STATIC int |
e1ec3a88 | 1447 | S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1448 | { |
1449 | dSP; | |
463ee0b2 | 1450 | |
924508f0 GS |
1451 | PUSHMARK(SP); |
1452 | EXTEND(SP, n); | |
33c27489 | 1453 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1454 | if (n > 1) { |
93965878 | 1455 | if (mg->mg_ptr) { |
565764a8 | 1456 | if (mg->mg_len >= 0) |
79cb57f6 | 1457 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1458 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1459 | PUSHs((SV*)mg->mg_ptr); |
1460 | } | |
14befaf4 | 1461 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1462 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1463 | } |
1464 | } | |
1465 | if (n > 2) { | |
1466 | PUSHs(val); | |
88e89b8a | 1467 | } |
463ee0b2 LW |
1468 | PUTBACK; |
1469 | ||
864dbfa3 | 1470 | return call_method(meth, flags); |
946ec16e | 1471 | } |
1472 | ||
76e3520e | 1473 | STATIC int |
e1ec3a88 | 1474 | S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth) |
a0d0e21e | 1475 | { |
27da23d5 | 1476 | dVAR; dSP; |
463ee0b2 | 1477 | |
a0d0e21e LW |
1478 | ENTER; |
1479 | SAVETMPS; | |
e788e7d3 | 1480 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1481 | |
33c27489 | 1482 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1483 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1484 | } |
463ee0b2 | 1485 | |
d3acc0f7 | 1486 | POPSTACK; |
a0d0e21e LW |
1487 | FREETMPS; |
1488 | LEAVE; | |
1489 | return 0; | |
1490 | } | |
463ee0b2 | 1491 | |
a0d0e21e | 1492 | int |
864dbfa3 | 1493 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1494 | { |
a0d0e21e LW |
1495 | if (mg->mg_ptr) |
1496 | mg->mg_flags |= MGf_GSKIP; | |
58f82c5c | 1497 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1498 | return 0; |
1499 | } | |
1500 | ||
1501 | int | |
864dbfa3 | 1502 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d | 1503 | { |
27da23d5 | 1504 | dVAR; dSP; |
a60c0954 | 1505 | ENTER; |
e788e7d3 | 1506 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1507 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1508 | POPSTACK; |
a60c0954 | 1509 | LEAVE; |
463ee0b2 LW |
1510 | return 0; |
1511 | } | |
1512 | ||
1513 | int | |
864dbfa3 | 1514 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1515 | { |
a0d0e21e LW |
1516 | return magic_methpack(sv,mg,"DELETE"); |
1517 | } | |
463ee0b2 | 1518 | |
93965878 NIS |
1519 | |
1520 | U32 | |
864dbfa3 | 1521 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1522 | { |
27da23d5 | 1523 | dVAR; dSP; |
93965878 NIS |
1524 | U32 retval = 0; |
1525 | ||
1526 | ENTER; | |
1527 | SAVETMPS; | |
e788e7d3 | 1528 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1529 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1530 | sv = *PL_stack_sp--; |
a60c0954 | 1531 | retval = (U32) SvIV(sv)-1; |
93965878 | 1532 | } |
d3acc0f7 | 1533 | POPSTACK; |
93965878 NIS |
1534 | FREETMPS; |
1535 | LEAVE; | |
1536 | return retval; | |
1537 | } | |
1538 | ||
cea2e8a9 GS |
1539 | int |
1540 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e | 1541 | { |
27da23d5 | 1542 | dVAR; dSP; |
463ee0b2 | 1543 | |
e336de0d | 1544 | ENTER; |
e788e7d3 | 1545 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1546 | PUSHMARK(SP); |
33c27489 | 1547 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1548 | PUTBACK; |
864dbfa3 | 1549 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1550 | POPSTACK; |
a60c0954 | 1551 | LEAVE; |
a3bcc51e | 1552 | |
463ee0b2 LW |
1553 | return 0; |
1554 | } | |
1555 | ||
1556 | int | |
864dbfa3 | 1557 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1558 | { |
27da23d5 | 1559 | dVAR; dSP; |
35a4481c | 1560 | const char * const meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1561 | |
1562 | ENTER; | |
a0d0e21e | 1563 | SAVETMPS; |
e788e7d3 | 1564 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1565 | PUSHMARK(SP); |
1566 | EXTEND(SP, 2); | |
33c27489 | 1567 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1568 | if (SvOK(key)) |
1569 | PUSHs(key); | |
1570 | PUTBACK; | |
1571 | ||
864dbfa3 | 1572 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1573 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1574 | |
d3acc0f7 | 1575 | POPSTACK; |
a0d0e21e LW |
1576 | FREETMPS; |
1577 | LEAVE; | |
79072805 LW |
1578 | return 0; |
1579 | } | |
1580 | ||
1581 | int | |
864dbfa3 | 1582 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1583 | { |
1584 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1585 | } |
a0d0e21e | 1586 | |
a3bcc51e TP |
1587 | SV * |
1588 | Perl_magic_scalarpack(pTHX_ HV *hv, MAGIC *mg) | |
1589 | { | |
27da23d5 | 1590 | dVAR; dSP; |
a3bcc51e TP |
1591 | SV *retval = &PL_sv_undef; |
1592 | SV *tied = SvTIED_obj((SV*)hv, mg); | |
1593 | HV *pkg = SvSTASH((SV*)SvRV(tied)); | |
1594 | ||
1595 | if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) { | |
1596 | SV *key; | |
bfcb3514 | 1597 | if (HvEITER_get(hv)) |
a3bcc51e TP |
1598 | /* we are in an iteration so the hash cannot be empty */ |
1599 | return &PL_sv_yes; | |
1600 | /* no xhv_eiter so now use FIRSTKEY */ | |
1601 | key = sv_newmortal(); | |
1602 | magic_nextpack((SV*)hv, mg, key); | |
bfcb3514 | 1603 | HvEITER_set(hv, NULL); /* need to reset iterator */ |
a3bcc51e TP |
1604 | return SvOK(key) ? &PL_sv_yes : &PL_sv_no; |
1605 | } | |
1606 | ||
1607 | /* there is a SCALAR method that we can call */ | |
1608 | ENTER; | |
1609 | PUSHSTACKi(PERLSI_MAGIC); | |
1610 | PUSHMARK(SP); | |
1611 | EXTEND(SP, 1); | |
1612 | PUSHs(tied); | |
1613 | PUTBACK; | |
1614 | ||
1615 | if (call_method("SCALAR", G_SCALAR)) | |
1616 | retval = *PL_stack_sp--; | |
1617 | POPSTACK; | |
1618 | LEAVE; | |
1619 | return retval; | |
1620 | } | |
1621 | ||
a0d0e21e | 1622 | int |
864dbfa3 | 1623 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1624 | { |
1625 | OP *o; | |
1626 | I32 i; | |
1627 | GV* gv; | |
1628 | SV** svp; | |
1629 | ||
3280af22 | 1630 | gv = PL_DBline; |
79072805 | 1631 | i = SvTRUE(sv); |
188ea221 | 1632 | svp = av_fetch(GvAV(gv), |
01b8bcb7 | 1633 | atoi(MgPV_nolen_const(mg)), FALSE); |
5df8de69 DM |
1634 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1635 | /* set or clear breakpoint in the relevant control op */ | |
1636 | if (i) | |
1637 | o->op_flags |= OPf_SPECIAL; | |
1638 | else | |
1639 | o->op_flags &= ~OPf_SPECIAL; | |
1640 | } | |
79072805 LW |
1641 | return 0; |
1642 | } | |
1643 | ||
1644 | int | |
864dbfa3 | 1645 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1646 | { |
83bf042f NC |
1647 | AV *obj = (AV*)mg->mg_obj; |
1648 | if (obj) { | |
1649 | sv_setiv(sv, AvFILL(obj) + PL_curcop->cop_arybase); | |
1650 | } else { | |
1651 | SvOK_off(sv); | |
1652 | } | |
79072805 LW |
1653 | return 0; |
1654 | } | |
1655 | ||
1656 | int | |
864dbfa3 | 1657 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1658 | { |
83bf042f NC |
1659 | AV *obj = (AV*)mg->mg_obj; |
1660 | if (obj) { | |
1661 | av_fill(obj, SvIV(sv) - PL_curcop->cop_arybase); | |
1662 | } else { | |
1663 | if (ckWARN(WARN_MISC)) | |
1664 | Perl_warner(aTHX_ packWARN(WARN_MISC), | |
1665 | "Attempt to set length of freed array"); | |
1666 | } | |
1667 | return 0; | |
1668 | } | |
1669 | ||
1670 | int | |
1671 | Perl_magic_freearylen_p(pTHX_ SV *sv, MAGIC *mg) | |
1672 | { | |
53c1dcc0 | 1673 | PERL_UNUSED_ARG(sv); |
94f3782b DM |
1674 | /* during global destruction, mg_obj may already have been freed */ |
1675 | if (PL_in_clean_all) | |
1ea47f64 | 1676 | return 0; |
94f3782b | 1677 | |
83bf042f NC |
1678 | mg = mg_find (mg->mg_obj, PERL_MAGIC_arylen); |
1679 | ||
1680 | if (mg) { | |
1681 | /* arylen scalar holds a pointer back to the array, but doesn't own a | |
1682 | reference. Hence the we (the array) are about to go away with it | |
1683 | still pointing at us. Clear its pointer, else it would be pointing | |
1684 | at free memory. See the comment in sv_magic about reference loops, | |
1685 | and why it can't own a reference to us. */ | |
1686 | mg->mg_obj = 0; | |
1687 | } | |
a0d0e21e LW |
1688 | return 0; |
1689 | } | |
1690 | ||
1691 | int | |
864dbfa3 | 1692 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1693 | { |
1694 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1695 | |
a0d0e21e | 1696 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1697 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1698 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1699 | I32 i = mg->mg_len; |
7e2040f0 | 1700 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1701 | sv_pos_b2u(lsv, &i); |
1702 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1703 | return 0; |
1704 | } | |
1705 | } | |
0c34ef67 | 1706 | SvOK_off(sv); |
a0d0e21e LW |
1707 | return 0; |
1708 | } | |
1709 | ||
1710 | int | |
864dbfa3 | 1711 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1712 | { |
1713 | SV* lsv = LvTARG(sv); | |
1714 | SSize_t pos; | |
1715 | STRLEN len; | |
c00206c8 | 1716 | STRLEN ulen = 0; |
a0d0e21e LW |
1717 | |
1718 | mg = 0; | |
ac27b0f5 | 1719 | |
a0d0e21e | 1720 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1721 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1722 | if (!mg) { |
1723 | if (!SvOK(sv)) | |
1724 | return 0; | |
14befaf4 DM |
1725 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1726 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1727 | } |
1728 | else if (!SvOK(sv)) { | |
565764a8 | 1729 | mg->mg_len = -1; |
a0d0e21e LW |
1730 | return 0; |
1731 | } | |
1732 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1733 | ||
c485e607 | 1734 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1735 | |
7e2040f0 | 1736 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1737 | ulen = sv_len_utf8(lsv); |
1738 | if (ulen) | |
1739 | len = ulen; | |
a0ed51b3 LW |
1740 | } |
1741 | ||
a0d0e21e LW |
1742 | if (pos < 0) { |
1743 | pos += len; | |
1744 | if (pos < 0) | |
1745 | pos = 0; | |
1746 | } | |
eb160463 | 1747 | else if (pos > (SSize_t)len) |
a0d0e21e | 1748 | pos = len; |
a0ed51b3 LW |
1749 | |
1750 | if (ulen) { | |
1751 | I32 p = pos; | |
1752 | sv_pos_u2b(lsv, &p, 0); | |
1753 | pos = p; | |
1754 | } | |
727405f8 | 1755 | |
565764a8 | 1756 | mg->mg_len = pos; |
71be2cbc | 1757 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1758 | |
79072805 LW |
1759 | return 0; |
1760 | } | |
1761 | ||
1762 | int | |
864dbfa3 | 1763 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1764 | { |
dd374669 | 1765 | (void)mg; |
8646b087 | 1766 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1767 | SvFAKE_off(sv); | |
946ec16e | 1768 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1769 | SvFAKE_on(sv); |
1770 | } | |
1771 | else | |
946ec16e | 1772 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1773 | return 0; |
1774 | } | |
1775 | ||
1776 | int | |
864dbfa3 | 1777 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1778 | { |
79072805 | 1779 | GV* gv; |
dd374669 | 1780 | (void)mg; |
7a5fd60d | 1781 | |
79072805 LW |
1782 | if (!SvOK(sv)) |
1783 | return 0; | |
7a5fd60d | 1784 | gv = gv_fetchsv(sv,TRUE, SVt_PVGV); |
79072805 LW |
1785 | if (sv == (SV*)gv) |
1786 | return 0; | |
1787 | if (GvGP(sv)) | |
88e89b8a | 1788 | gp_free((GV*)sv); |
79072805 | 1789 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1790 | return 0; |
1791 | } | |
1792 | ||
1793 | int | |
864dbfa3 | 1794 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1795 | { |
1796 | STRLEN len; | |
35a4481c | 1797 | SV * const lsv = LvTARG(sv); |
b83604b4 | 1798 | const char * const tmps = SvPV_const(lsv,len); |
6ff81951 GS |
1799 | I32 offs = LvTARGOFF(sv); |
1800 | I32 rem = LvTARGLEN(sv); | |
dd374669 | 1801 | (void)mg; |
6ff81951 | 1802 | |
9aa983d2 JH |
1803 | if (SvUTF8(lsv)) |
1804 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1805 | if (offs > (I32)len) |
6ff81951 | 1806 | offs = len; |
eb160463 | 1807 | if (rem + offs > (I32)len) |
6ff81951 GS |
1808 | rem = len - offs; |
1809 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1810 | if (SvUTF8(lsv)) |
2ef4b674 | 1811 | SvUTF8_on(sv); |
6ff81951 GS |
1812 | return 0; |
1813 | } | |
1814 | ||
1815 | int | |
864dbfa3 | 1816 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1817 | { |
9aa983d2 | 1818 | STRLEN len; |
b83604b4 | 1819 | const char *tmps = SvPV_const(sv, len); |
dd374669 | 1820 | SV * const lsv = LvTARG(sv); |
9aa983d2 JH |
1821 | I32 lvoff = LvTARGOFF(sv); |
1822 | I32 lvlen = LvTARGLEN(sv); | |
dd374669 | 1823 | (void)mg; |
075a4a2b | 1824 | |
1aa99e6b | 1825 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1826 | sv_utf8_upgrade(lsv); |
1827 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1828 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
b76f3ce2 | 1829 | LvTARGLEN(sv) = sv_len_utf8(sv); |
9aa983d2 JH |
1830 | SvUTF8_on(lsv); |
1831 | } | |
9bf12eaf | 1832 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1833 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
b76f3ce2 | 1834 | LvTARGLEN(sv) = len; |
e95af362 | 1835 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1836 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1837 | Safefree(tmps); | |
1aa99e6b | 1838 | } |
b76f3ce2 GB |
1839 | else { |
1840 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1841 | LvTARGLEN(sv) = len; | |
1842 | } | |
1843 | ||
1aa99e6b | 1844 | |
79072805 LW |
1845 | return 0; |
1846 | } | |
1847 | ||
1848 | int | |
864dbfa3 | 1849 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1850 | { |
565764a8 | 1851 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1852 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1853 | return 0; |
1854 | } | |
1855 | ||
1856 | int | |
864dbfa3 | 1857 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1858 | { |
dd374669 | 1859 | (void)sv; |
3280af22 NIS |
1860 | if (PL_localizing) { |
1861 | if (PL_localizing == 1) | |
565764a8 | 1862 | mg->mg_len <<= 1; |
748a9306 | 1863 | else |
565764a8 | 1864 | mg->mg_len >>= 1; |
a0d0e21e | 1865 | } |
3280af22 | 1866 | else if (PL_tainted) |
565764a8 | 1867 | mg->mg_len |= 1; |
748a9306 | 1868 | else |
565764a8 | 1869 | mg->mg_len &= ~1; |
463ee0b2 LW |
1870 | return 0; |
1871 | } | |
1872 | ||
1873 | int | |
864dbfa3 | 1874 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1875 | { |
35a4481c | 1876 | SV * const lsv = LvTARG(sv); |
dd374669 | 1877 | (void)mg; |
6ff81951 GS |
1878 | |
1879 | if (!lsv) { | |
0c34ef67 | 1880 | SvOK_off(sv); |
6ff81951 GS |
1881 | return 0; |
1882 | } | |
6ff81951 | 1883 | |
81e118e0 | 1884 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1885 | return 0; |
1886 | } | |
1887 | ||
1888 | int | |
864dbfa3 | 1889 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1890 | { |
dd374669 | 1891 | (void)mg; |
79072805 LW |
1892 | do_vecset(sv); /* XXX slurp this routine */ |
1893 | return 0; | |
1894 | } | |
1895 | ||
1896 | int | |
864dbfa3 | 1897 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1898 | { |
71be2cbc | 1899 | SV *targ = Nullsv; |
5f05dabc | 1900 | if (LvTARGLEN(sv)) { |
68dc0745 | 1901 | if (mg->mg_obj) { |
74e13ce4 | 1902 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1903 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1904 | if (he) | |
1905 | targ = HeVAL(he); | |
68dc0745 | 1906 | } |
1907 | else { | |
3c78fafa | 1908 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1909 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1910 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1911 | } | |
3280af22 | 1912 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1913 | /* somebody else defined it for us */ |
1914 | SvREFCNT_dec(LvTARG(sv)); | |
1915 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1916 | LvTARGLEN(sv) = 0; | |
1917 | SvREFCNT_dec(mg->mg_obj); | |
1918 | mg->mg_obj = Nullsv; | |
1919 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1920 | } | |
5f05dabc | 1921 | } |
71be2cbc | 1922 | else |
1923 | targ = LvTARG(sv); | |
3280af22 | 1924 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1925 | return 0; |
1926 | } | |
1927 | ||
1928 | int | |
864dbfa3 | 1929 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1930 | { |
dd374669 | 1931 | (void)mg; |
71be2cbc | 1932 | if (LvTARGLEN(sv)) |
68dc0745 | 1933 | vivify_defelem(sv); |
1934 | if (LvTARG(sv)) { | |
5f05dabc | 1935 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1936 | SvSETMAGIC(LvTARG(sv)); |
1937 | } | |
5f05dabc | 1938 | return 0; |
1939 | } | |
1940 | ||
71be2cbc | 1941 | void |
864dbfa3 | 1942 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1943 | { |
74e13ce4 GS |
1944 | MAGIC *mg; |
1945 | SV *value = Nullsv; | |
71be2cbc | 1946 | |
14befaf4 | 1947 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1948 | return; |
68dc0745 | 1949 | if (mg->mg_obj) { |
74e13ce4 | 1950 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1951 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1952 | if (he) | |
1953 | value = HeVAL(he); | |
3280af22 | 1954 | if (!value || value == &PL_sv_undef) |
ce5030a2 | 1955 | Perl_croak(aTHX_ PL_no_helem_sv, mg->mg_obj); |
71be2cbc | 1956 | } |
68dc0745 | 1957 | else { |
1958 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1959 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1960 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1961 | else { | |
1962 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1963 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1964 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1965 | } |
1966 | } | |
3e3baf6d | 1967 | (void)SvREFCNT_inc(value); |
68dc0745 | 1968 | SvREFCNT_dec(LvTARG(sv)); |
1969 | LvTARG(sv) = value; | |
71be2cbc | 1970 | LvTARGLEN(sv) = 0; |
68dc0745 | 1971 | SvREFCNT_dec(mg->mg_obj); |
1972 | mg->mg_obj = Nullsv; | |
1973 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1974 | } |
1975 | ||
1976 | int | |
864dbfa3 | 1977 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1978 | { |
1979 | AV *av = (AV*)mg->mg_obj; | |
1980 | SV **svp = AvARRAY(av); | |
1981 | I32 i = AvFILLp(av); | |
dd374669 AL |
1982 | (void)sv; |
1983 | ||
810b8aa5 | 1984 | while (i >= 0) { |
fdc9a813 | 1985 | if (svp[i]) { |
810b8aa5 | 1986 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 | 1987 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 | 1988 | /* XXX Should we check that it hasn't changed? */ |
b162af07 | 1989 | SvRV_set(svp[i], 0); |
0c34ef67 | 1990 | SvOK_off(svp[i]); |
810b8aa5 | 1991 | SvWEAKREF_off(svp[i]); |
fdc9a813 | 1992 | svp[i] = Nullsv; |
810b8aa5 GS |
1993 | } |
1994 | i--; | |
1995 | } | |
d99b02a1 | 1996 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
1997 | return 0; |
1998 | } | |
1999 | ||
2000 | int | |
864dbfa3 | 2001 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 2002 | { |
565764a8 | 2003 | mg->mg_len = -1; |
c6496cc7 | 2004 | SvSCREAM_off(sv); |
93a17b20 LW |
2005 | return 0; |
2006 | } | |
2007 | ||
2008 | int | |
864dbfa3 | 2009 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2010 | { |
dd374669 | 2011 | (void)mg; |
14befaf4 | 2012 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
2013 | SvVALID_off(sv); |
2014 | return 0; | |
2015 | } | |
2016 | ||
2017 | int | |
864dbfa3 | 2018 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 2019 | { |
dd374669 | 2020 | (void)mg; |
14befaf4 | 2021 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 2022 | SvCOMPILED_off(sv); |
2023 | return 0; | |
2024 | } | |
2025 | ||
2026 | int | |
864dbfa3 | 2027 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2028 | { |
35a4481c | 2029 | const struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
2030 | |
2031 | if (uf && uf->uf_set) | |
24f81a43 | 2032 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
2033 | return 0; |
2034 | } | |
2035 | ||
c277df42 | 2036 | int |
faf82a0b AE |
2037 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
2038 | { | |
dd374669 | 2039 | (void)mg; |
faf82a0b AE |
2040 | sv_unmagic(sv, PERL_MAGIC_qr); |
2041 | return 0; | |
2042 | } | |
2043 | ||
2044 | int | |
864dbfa3 | 2045 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
2046 | { |
2047 | regexp *re = (regexp *)mg->mg_obj; | |
2048 | ReREFCNT_dec(re); | |
dd374669 | 2049 | (void)sv; |
c277df42 IZ |
2050 | return 0; |
2051 | } | |
2052 | ||
7a4c00b4 | 2053 | #ifdef USE_LOCALE_COLLATE |
79072805 | 2054 | int |
864dbfa3 | 2055 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 2056 | { |
2057 | /* | |
838b5b74 | 2058 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 2059 | * and vanished with a faint plop. |
2060 | */ | |
dd374669 | 2061 | (void)sv; |
7a4c00b4 | 2062 | if (mg->mg_ptr) { |
2063 | Safefree(mg->mg_ptr); | |
2064 | mg->mg_ptr = NULL; | |
565764a8 | 2065 | mg->mg_len = -1; |
7a4c00b4 | 2066 | } |
bbce6d69 | 2067 | return 0; |
2068 | } | |
7a4c00b4 | 2069 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 2070 | |
7e8c5dac HS |
2071 | /* Just clear the UTF-8 cache data. */ |
2072 | int | |
2073 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
2074 | { | |
dd374669 | 2075 | (void)sv; |
7e8c5dac HS |
2076 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
2077 | mg->mg_ptr = 0; | |
2078 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
2079 | return 0; | |
2080 | } | |
2081 | ||
bbce6d69 | 2082 | int |
864dbfa3 | 2083 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2084 | { |
e1ec3a88 | 2085 | register const char *s; |
79072805 | 2086 | I32 i; |
8990e307 | 2087 | STRLEN len; |
79072805 | 2088 | switch (*mg->mg_ptr) { |
748a9306 | 2089 | case '\001': /* ^A */ |
3280af22 | 2090 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 2091 | break; |
49460fe6 | 2092 | case '\003': /* ^C */ |
eb160463 | 2093 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
2094 | break; |
2095 | ||
79072805 | 2096 | case '\004': /* ^D */ |
b4ab917c | 2097 | #ifdef DEBUGGING |
b83604b4 | 2098 | s = SvPV_nolen_const(sv); |
ddcf8bc1 | 2099 | PL_debug = get_debug_opts(&s, 0) | DEBUG_TOP_FLAG; |
79072805 | 2100 | DEBUG_x(dump_all()); |
b4ab917c DM |
2101 | #else |
2102 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
2103 | #endif | |
79072805 | 2104 | break; |
28f23441 | 2105 | case '\005': /* ^E */ |
d0063567 | 2106 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2107 | #ifdef MACOS_TRADITIONAL |
d0063567 | 2108 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2109 | #else |
cd39f2b6 | 2110 | # ifdef VMS |
d0063567 | 2111 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2112 | # else |
cd39f2b6 | 2113 | # ifdef WIN32 |
d0063567 | 2114 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2115 | # else |
9fed8b87 | 2116 | # ifdef OS2 |
d0063567 | 2117 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2118 | # else |
d0063567 DK |
2119 | /* will anyone ever use this? */ |
2120 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2121 | # endif |
048c1ddf IZ |
2122 | # endif |
2123 | # endif | |
22fae026 | 2124 | #endif |
d0063567 DK |
2125 | } |
2126 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2127 | if (PL_encoding) | |
2128 | SvREFCNT_dec(PL_encoding); | |
2129 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2130 | PL_encoding = newSVsv(sv); | |
2131 | } | |
2132 | else { | |
2133 | PL_encoding = Nullsv; | |
2134 | } | |
2135 | } | |
2136 | break; | |
79072805 | 2137 | case '\006': /* ^F */ |
3280af22 | 2138 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2139 | break; |
a0d0e21e | 2140 | case '\010': /* ^H */ |
3280af22 | 2141 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2142 | break; |
9d116dd7 | 2143 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2144 | if (PL_inplace) |
2145 | Safefree(PL_inplace); | |
79072805 | 2146 | if (SvOK(sv)) |
2e0de35c | 2147 | PL_inplace = savesvpv(sv); |
79072805 | 2148 | else |
3280af22 | 2149 | PL_inplace = Nullch; |
79072805 | 2150 | break; |
28f23441 | 2151 | case '\017': /* ^O */ |
ac27b0f5 | 2152 | if (*(mg->mg_ptr+1) == '\0') { |
1bf29663 | 2153 | if (PL_osname) { |
ac27b0f5 | 2154 | Safefree(PL_osname); |
1bf29663 DM |
2155 | PL_osname = Nullch; |
2156 | } | |
3511154c DM |
2157 | if (SvOK(sv)) { |
2158 | TAINT_PROPER("assigning to $^O"); | |
2e0de35c | 2159 | PL_osname = savesvpv(sv); |
3511154c | 2160 | } |
ac27b0f5 NIS |
2161 | } |
2162 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2163 | if (!PL_compiling.cop_io) | |
2164 | PL_compiling.cop_io = newSVsv(sv); | |
2165 | else | |
2166 | sv_setsv(PL_compiling.cop_io,sv); | |
2167 | } | |
28f23441 | 2168 | break; |
79072805 | 2169 | case '\020': /* ^P */ |
3280af22 | 2170 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
f2a7f298 | 2171 | if (PL_perldb && !PL_DBsingle) |
1ee4443e | 2172 | init_debugger(); |
79072805 LW |
2173 | break; |
2174 | case '\024': /* ^T */ | |
88e89b8a | 2175 | #ifdef BIG_TIME |
6b88bc9c | 2176 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2177 | #else |
3280af22 | 2178 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2179 | #endif |
79072805 | 2180 | break; |
fde18df1 | 2181 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2182 | if (*(mg->mg_ptr+1) == '\0') { |
2183 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2184 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2185 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2186 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2187 | } |
599cee73 | 2188 | } |
0a378802 | 2189 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2190 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2191 | if (!SvPOK(sv) && PL_localizing) { |
2192 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2193 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2194 | break; |
2195 | } | |
f4fc7782 | 2196 | { |
b5477537 | 2197 | STRLEN len, i; |
d3a7d8c7 | 2198 | int accumulate = 0 ; |
f4fc7782 | 2199 | int any_fatals = 0 ; |
b83604b4 | 2200 | const char * const ptr = SvPV_const(sv, len) ; |
f4fc7782 JH |
2201 | for (i = 0 ; i < len ; ++i) { |
2202 | accumulate |= ptr[i] ; | |
2203 | any_fatals |= (ptr[i] & 0xAA) ; | |
2204 | } | |
d3a7d8c7 GS |
2205 | if (!accumulate) |
2206 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2207 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2208 | PL_compiling.cop_warnings = pWARN_ALL; | |
2209 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2210 | } |
d3a7d8c7 GS |
2211 | else { |
2212 | if (specialWARN(PL_compiling.cop_warnings)) | |
2213 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2214 | else | |
2215 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2216 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2217 | PL_dowarn |= G_WARN_ONCE ; | |
2218 | } | |
f4fc7782 | 2219 | |
d3a7d8c7 | 2220 | } |
4438c4b7 | 2221 | } |
971a9dd3 | 2222 | } |
79072805 LW |
2223 | break; |
2224 | case '.': | |
3280af22 NIS |
2225 | if (PL_localizing) { |
2226 | if (PL_localizing == 1) | |
7766f137 | 2227 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2228 | } |
3280af22 | 2229 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2230 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2231 | break; |
2232 | case '^': | |
3280af22 | 2233 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2234 | s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
7a5fd60d | 2235 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv,TRUE, SVt_PVIO); |
79072805 LW |
2236 | break; |
2237 | case '~': | |
3280af22 | 2238 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2239 | s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
7a5fd60d | 2240 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv,TRUE, SVt_PVIO); |
79072805 LW |
2241 | break; |
2242 | case '=': | |
632db599 | 2243 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2244 | break; |
2245 | case '-': | |
632db599 | 2246 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2247 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2248 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2249 | break; |
2250 | case '%': | |
632db599 | 2251 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2252 | break; |
2253 | case '|': | |
4b65379b | 2254 | { |
3280af22 | 2255 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2256 | if(!io) |
2257 | break; | |
4b65379b CS |
2258 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2259 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2260 | else { | |
2261 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2262 | PerlIO *ofp = IoOFP(io); | |
2263 | if (ofp) | |
2264 | (void)PerlIO_flush(ofp); | |
2265 | IoFLAGS(io) |= IOf_FLUSH; | |
2266 | } | |
2267 | } | |
79072805 LW |
2268 | } |
2269 | break; | |
79072805 | 2270 | case '/': |
3280af22 | 2271 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2272 | PL_rs = newSVsv(sv); |
79072805 LW |
2273 | break; |
2274 | case '\\': | |
7889fe52 NIS |
2275 | if (PL_ors_sv) |
2276 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2277 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2278 | PL_ors_sv = newSVsv(sv); |
009c130f | 2279 | } |
e3c19b7b | 2280 | else { |
7889fe52 | 2281 | PL_ors_sv = Nullsv; |
e3c19b7b | 2282 | } |
79072805 LW |
2283 | break; |
2284 | case ',': | |
7889fe52 NIS |
2285 | if (PL_ofs_sv) |
2286 | SvREFCNT_dec(PL_ofs_sv); | |
2287 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2288 | PL_ofs_sv = newSVsv(sv); | |
2289 | } | |
2290 | else { | |
2291 | PL_ofs_sv = Nullsv; | |
2292 | } | |
79072805 | 2293 | break; |
79072805 | 2294 | case '[': |
3280af22 | 2295 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2296 | break; |
2297 | case '?': | |
ff0cee69 | 2298 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2299 | if (PL_localizing == 2) { |
2300 | PL_statusvalue = LvTARGOFF(sv); | |
2301 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2302 | } |
2303 | else | |
2304 | #endif | |
2305 | #ifdef VMSISH_STATUS | |
2306 | if (VMSISH_STATUS) | |
2307 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2308 | else | |
2309 | #endif | |
e5218da5 | 2310 | STATUS_UNIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2311 | break; |
2312 | case '!': | |
93189314 JH |
2313 | { |
2314 | #ifdef VMS | |
2315 | # define PERL_VMS_BANG vaxc$errno | |
2316 | #else | |
2317 | # define PERL_VMS_BANG 0 | |
2318 | #endif | |
91487cfc | 2319 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2320 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2321 | } | |
79072805 LW |
2322 | break; |
2323 | case '<': | |
3280af22 NIS |
2324 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2325 | if (PL_delaymagic) { | |
2326 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2327 | break; /* don't do magic till later */ |
2328 | } | |
2329 | #ifdef HAS_SETRUID | |
b28d0864 | 2330 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2331 | #else |
2332 | #ifdef HAS_SETREUID | |
3280af22 | 2333 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2334 | #else |
85e6fe83 | 2335 | #ifdef HAS_SETRESUID |
b28d0864 | 2336 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2337 | #else |
75870ed3 | 2338 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2339 | #ifdef PERL_DARWIN | |
2340 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2341 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2342 | (void)PerlProc_setuid(0); | |
2343 | #endif | |
b28d0864 | 2344 | (void)PerlProc_setuid(PL_uid); |
75870ed3 | 2345 | } else { |
d8eceb89 | 2346 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2347 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2348 | } |
79072805 LW |
2349 | #endif |
2350 | #endif | |
85e6fe83 | 2351 | #endif |
d8eceb89 | 2352 | PL_uid = PerlProc_getuid(); |
3280af22 | 2353 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2354 | break; |
2355 | case '>': | |
3280af22 NIS |
2356 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2357 | if (PL_delaymagic) { | |
2358 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2359 | break; /* don't do magic till later */ |
2360 | } | |
2361 | #ifdef HAS_SETEUID | |
3280af22 | 2362 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2363 | #else |
2364 | #ifdef HAS_SETREUID | |
b28d0864 | 2365 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2366 | #else |
2367 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2368 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2369 | #else |
b28d0864 NIS |
2370 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2371 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2372 | else { |
e8ee3774 | 2373 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2374 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2375 | } |
79072805 LW |
2376 | #endif |
2377 | #endif | |
85e6fe83 | 2378 | #endif |
d8eceb89 | 2379 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2380 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2381 | break; |
2382 | case '(': | |
3280af22 NIS |
2383 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2384 | if (PL_delaymagic) { | |
2385 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2386 | break; /* don't do magic till later */ |
2387 | } | |
2388 | #ifdef HAS_SETRGID | |
b28d0864 | 2389 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2390 | #else |
2391 | #ifdef HAS_SETREGID | |
3280af22 | 2392 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2393 | #else |
2394 | #ifdef HAS_SETRESGID | |
b28d0864 | 2395 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2396 | #else |
b28d0864 NIS |
2397 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2398 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2399 | else { |
d8eceb89 | 2400 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2401 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2402 | } |
79072805 LW |
2403 | #endif |
2404 | #endif | |
85e6fe83 | 2405 | #endif |
d8eceb89 | 2406 | PL_gid = PerlProc_getgid(); |
3280af22 | 2407 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2408 | break; |
2409 | case ')': | |
5cd24f17 | 2410 | #ifdef HAS_SETGROUPS |
2411 | { | |
b83604b4 | 2412 | const char *p = SvPV_const(sv, len); |
5cd24f17 | 2413 | Groups_t gary[NGROUPS]; |
2414 | ||
5cd24f17 | 2415 | while (isSPACE(*p)) |
2416 | ++p; | |
2d4389e4 | 2417 | PL_egid = Atol(p); |
5cd24f17 | 2418 | for (i = 0; i < NGROUPS; ++i) { |
2419 | while (*p && !isSPACE(*p)) | |
2420 | ++p; | |
2421 | while (isSPACE(*p)) | |
2422 | ++p; | |
2423 | if (!*p) | |
2424 | break; | |
2d4389e4 | 2425 | gary[i] = Atol(p); |
5cd24f17 | 2426 | } |
8cc95fdb | 2427 | if (i) |
2428 | (void)setgroups(i, gary); | |
5cd24f17 | 2429 | } |
2430 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2431 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2432 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2433 | if (PL_delaymagic) { |
2434 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2435 | break; /* don't do magic till later */ |
2436 | } | |
2437 | #ifdef HAS_SETEGID | |
3280af22 | 2438 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2439 | #else |
2440 | #ifdef HAS_SETREGID | |
b28d0864 | 2441 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2442 | #else |
2443 | #ifdef HAS_SETRESGID | |
b28d0864 | 2444 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2445 | #else |
b28d0864 NIS |
2446 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2447 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2448 | else { |
d8eceb89 | 2449 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2450 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2451 | } |
79072805 LW |
2452 | #endif |
2453 | #endif | |
85e6fe83 | 2454 | #endif |
d8eceb89 | 2455 | PL_egid = PerlProc_getegid(); |
3280af22 | 2456 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2457 | break; |
2458 | case ':': | |
2d8e6c8d | 2459 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2460 | break; |
cd39f2b6 | 2461 | #ifndef MACOS_TRADITIONAL |
79072805 | 2462 | case '0': |
e2975953 | 2463 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2464 | #ifdef HAS_SETPROCTITLE |
2465 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2466 | * show a string from the process struct and provide | |
2467 | * the setproctitle() routine to manipulate that. */ | |
2468 | { | |
b83604b4 | 2469 | s = SvPV_const(sv, len); |
98b76f99 | 2470 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2471 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2472 | * but not the "(perl) suffix from the ps(1) |
2473 | * output, because that's what ps(1) shows if the | |
2474 | * argv[] is modified. */ | |
6f2ad931 | 2475 | setproctitle("-%s", s); |
9aad2c0e | 2476 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2477 | /* This doesn't really work if you assume that |
2478 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2479 | * because in ps(1) output the result will be like | |
2480 | * sprintf("perl: %s (perl)", s) | |
2481 | * I guess this is a security feature: | |
2482 | * one (a user process) cannot get rid of the original name. | |
2483 | * --jhi */ | |
2484 | setproctitle("%s", s); | |
2485 | # endif | |
2486 | } | |
2487 | #endif | |
17aa7f3d JH |
2488 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2489 | { | |
2490 | union pstun un; | |
b83604b4 | 2491 | s = SvPV_const(sv, len); |
6867be6d | 2492 | un.pst_command = (char *)s; |
17aa7f3d JH |
2493 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2494 | } | |
2495 | #endif | |
3cb9023d | 2496 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2497 | s = SvPV_force(sv,len); |
6f698202 AMS |
2498 | if (len >= (STRLEN)PL_origalen-1) { |
2499 | /* Longer than original, will be truncated. We assume that | |
2500 | * PL_origalen bytes are available. */ | |
2501 | Copy(s, PL_origargv[0], PL_origalen-1, char); | |
79072805 LW |
2502 | } |
2503 | else { | |
54bfe034 JH |
2504 | /* Shorter than original, will be padded. */ |
2505 | Copy(s, PL_origargv[0], len, char); | |
2506 | PL_origargv[0][len] = 0; | |
2507 | memset(PL_origargv[0] + len + 1, | |
2508 | /* Is the space counterintuitive? Yes. | |
2509 | * (You were expecting \0?) | |
3cb9023d | 2510 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 JH |
2511 | * --jhi */ |
2512 | (int)' ', | |
2513 | PL_origalen - len - 1); | |
79072805 | 2514 | } |
ad7eccf4 JD |
2515 | PL_origargv[0][PL_origalen-1] = 0; |
2516 | for (i = 1; i < PL_origargc; i++) | |
2517 | PL_origargv[i] = 0; | |
e2975953 | 2518 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2519 | break; |
cd39f2b6 | 2520 | #endif |
79072805 LW |
2521 | } |
2522 | return 0; | |
2523 | } | |
2524 | ||
2525 | I32 | |
35a4481c | 2526 | Perl_whichsig(pTHX_ const char *sig) |
79072805 | 2527 | { |
aadb217d | 2528 | register char* const* sigv; |
79072805 | 2529 | |
aadb217d | 2530 | for (sigv = (char* const*)PL_sig_name; *sigv; sigv++) |
79072805 | 2531 | if (strEQ(sig,*sigv)) |
aadb217d | 2532 | return PL_sig_num[sigv - (char* const*)PL_sig_name]; |
79072805 LW |
2533 | #ifdef SIGCLD |
2534 | if (strEQ(sig,"CHLD")) | |
2535 | return SIGCLD; | |
2536 | #endif | |
2537 | #ifdef SIGCHLD | |
2538 | if (strEQ(sig,"CLD")) | |
2539 | return SIGCHLD; | |
2540 | #endif | |
7f1236c0 | 2541 | return -1; |
79072805 LW |
2542 | } |
2543 | ||
ecfc5424 | 2544 | Signal_t |
cea2e8a9 | 2545 | Perl_sighandler(int sig) |
79072805 | 2546 | { |
1018e26f NIS |
2547 | #ifdef PERL_GET_SIG_CONTEXT |
2548 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2549 | #else |
cea2e8a9 | 2550 | dTHX; |
71d280e3 | 2551 | #endif |
79072805 | 2552 | dSP; |
00d579c5 | 2553 | GV *gv = Nullgv; |
a0d0e21e | 2554 | HV *st; |
b7953727 | 2555 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2556 | CV *cv = Nullcv; |
533c011a | 2557 | OP *myop = PL_op; |
84902520 | 2558 | U32 flags = 0; |
3280af22 | 2559 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2560 | |
3280af22 | 2561 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2562 | flags |= 1; |
3280af22 | 2563 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2564 | flags |= 4; |
3280af22 | 2565 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2566 | flags |= 16; |
2567 | ||
727405f8 | 2568 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2569 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2570 | PL_sig_name[sig]); |
2571 | exit(sig); | |
2572 | } | |
ff0cee69 | 2573 | |
84902520 TB |
2574 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2575 | infinity, so we fix 4 (in fact 5): */ | |
2576 | if (flags & 1) { | |
3280af22 | 2577 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2578 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2579 | } |
ac27b0f5 | 2580 | if (flags & 4) |
3280af22 | 2581 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2582 | if (flags & 16) |
3280af22 | 2583 | PL_scopestack_ix += 1; |
84902520 | 2584 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2585 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2586 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2587 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2588 | |
a0d0e21e | 2589 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2590 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2591 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2592 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2593 | : ((cv && CvGV(cv)) |
2594 | ? GvENAME(CvGV(cv)) | |
2595 | : "__ANON__"))); | |
2596 | goto cleanup; | |
79072805 LW |
2597 | } |
2598 | ||
22c35a8c GS |
2599 | if(PL_psig_name[sig]) { |
2600 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2601 | flags |= 64; |
df3728a2 | 2602 | #if !defined(PERL_IMPLICIT_CONTEXT) |
27da23d5 | 2603 | PL_sig_sv = sv; |
df3728a2 | 2604 | #endif |
84902520 | 2605 | } else { |
ff0cee69 | 2606 | sv = sv_newmortal(); |
22c35a8c | 2607 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2608 | } |
e336de0d | 2609 | |
e788e7d3 | 2610 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2611 | PUSHMARK(SP); |
79072805 | 2612 | PUSHs(sv); |
79072805 | 2613 | PUTBACK; |
a0d0e21e | 2614 | |
1b266415 | 2615 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2616 | |
d3acc0f7 | 2617 | POPSTACK; |
1b266415 | 2618 | if (SvTRUE(ERRSV)) { |
1d615522 | 2619 | #ifndef PERL_MICRO |
983dbef6 | 2620 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2621 | /* Handler "died", for example to get out of a restart-able read(). |
2622 | * Before we re-do that on its behalf re-enable the signal which was | |
2623 | * blocked by the system when we entered. | |
2624 | */ | |
2625 | sigset_t set; | |
2626 | sigemptyset(&set); | |
2627 | sigaddset(&set,sig); | |
2628 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2629 | #else | |
2630 | /* Not clear if this will work */ | |
2631 | (void)rsignal(sig, SIG_IGN); | |
5c1546dc | 2632 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2633 | #endif |
1d615522 | 2634 | #endif /* !PERL_MICRO */ |
5df617be | 2635 | DieNull; |
1b266415 | 2636 | } |
00d579c5 | 2637 | cleanup: |
84902520 | 2638 | if (flags & 1) |
3280af22 | 2639 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2640 | if (flags & 4) |
3280af22 | 2641 | PL_markstack_ptr--; |
84902520 | 2642 | if (flags & 16) |
3280af22 | 2643 | PL_scopestack_ix -= 1; |
84902520 TB |
2644 | if (flags & 64) |
2645 | SvREFCNT_dec(sv); | |
533c011a | 2646 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2647 | |
3280af22 NIS |
2648 | PL_Sv = tSv; /* Restore global temporaries. */ |
2649 | PL_Xpv = tXpv; | |
53bb94e2 | 2650 | return; |
79072805 | 2651 | } |
4e35701f NIS |
2652 | |
2653 | ||
51371543 | 2654 | static void |
35a4481c | 2655 | restore_magic(pTHX_ const void *p) |
51371543 | 2656 | { |
48944bdf | 2657 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2658 | SV* sv = mgs->mgs_sv; |
2659 | ||
2660 | if (!sv) | |
2661 | return; | |
2662 | ||
2663 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2664 | { | |
f8c7b90f | 2665 | #ifdef PERL_OLD_COPY_ON_WRITE |
f9701176 NC |
2666 | /* While magic was saved (and off) sv_setsv may well have seen |
2667 | this SV as a prime candidate for COW. */ | |
2668 | if (SvIsCOW(sv)) | |
2669 | sv_force_normal(sv); | |
2670 | #endif | |
2671 | ||
51371543 GS |
2672 | if (mgs->mgs_flags) |
2673 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2674 | else | |
2675 | mg_magical(sv); | |
2676 | if (SvGMAGICAL(sv)) | |
2677 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2678 | } | |
2679 | ||
2680 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2681 | ||
2682 | /* If we're still on top of the stack, pop us off. (That condition | |
2683 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2684 | * if it's being called via leave_scope.) | |
2685 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2686 | * may leave alloc gunk on the savestack, and some code | |
2687 | * (e.g. sighandler) doesn't expect that... | |
2688 | */ | |
2689 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2690 | { | |
2691 | I32 popval = SSPOPINT; | |
c76ac1ee | 2692 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2693 | PL_savestack_ix -= 2; |
2694 | popval = SSPOPINT; | |
2695 | assert(popval == SAVEt_ALLOC); | |
2696 | popval = SSPOPINT; | |
2697 | PL_savestack_ix -= popval; | |
2698 | } | |
2699 | ||
2700 | } | |
2701 | ||
2702 | static void | |
35a4481c | 2703 | unwind_handler_stack(pTHX_ const void *p) |
51371543 | 2704 | { |
27da23d5 | 2705 | dVAR; |
e1ec3a88 | 2706 | const U32 flags = *(const U32*)p; |
51371543 GS |
2707 | |
2708 | if (flags & 1) | |
2709 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2710 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2711 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 | 2712 | if (flags & 64) |
27da23d5 | 2713 | SvREFCNT_dec(PL_sig_sv); |
df3728a2 | 2714 | #endif |
51371543 | 2715 | } |
1018e26f | 2716 | |
66610fdd RGS |
2717 | /* |
2718 | * Local variables: | |
2719 | * c-indentation-style: bsd | |
2720 | * c-basic-offset: 4 | |
2721 | * indent-tabs-mode: t | |
2722 | * End: | |
2723 | * | |
37442d52 RGS |
2724 | * ex: set ts=8 sts=4 sw=4 noet: |
2725 | */ |