Commit | Line | Data |
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a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
e6906430 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
fc64cf4d | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006 by Larry Wall and others |
79072805 LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
13 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
14 | */ |
15 | ||
ccfc67b7 JH |
16 | /* |
17 | =head1 Magical Functions | |
40d34c0d SB |
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 | |
23 | give it a chance to update its internal value (get on $. writes the line | |
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 | |
26 | use of its changed value (set on $/ copies the SV's new value to the | |
27 | PL_rs global variable). | |
28 | ||
29 | Magic is implemented as a linked list of MAGIC structures attached to the | |
30 | SV. Each MAGIC struct holds the type of the magic, a pointer to an array | |
31 | of functions that implement the get(), set(), length() etc functions, | |
32 | plus space for some flags and pointers. For example, a tied variable has | |
33 | a MAGIC structure that contains a pointer to the object associated with the | |
34 | tie. | |
35 | ||
ccfc67b7 JH |
36 | */ |
37 | ||
79072805 | 38 | #include "EXTERN.h" |
864dbfa3 | 39 | #define PERL_IN_MG_C |
79072805 LW |
40 | #include "perl.h" |
41 | ||
5cd24f17 | 42 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
43 | # ifndef NGROUPS |
44 | # define NGROUPS 32 | |
45 | # endif | |
b7953727 JH |
46 | # ifdef I_GRP |
47 | # include <grp.h> | |
48 | # endif | |
188ea221 CS |
49 | #endif |
50 | ||
7223e9d8 JH |
51 | #ifdef __hpux |
52 | # include <sys/pstat.h> | |
53 | #endif | |
54 | ||
c71a3471 JH |
55 | Signal_t Perl_csighandler(int sig); |
56 | ||
23ada85b | 57 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 58 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 59 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 60 | #endif |
2e34cc90 | 61 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 | 62 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 CL |
63 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
64 | #endif | |
85b332e2 | 65 | |
f0798ba3 OS |
66 | #ifdef __Lynx__ |
67 | /* Missing protos on LynxOS */ | |
68 | void setruid(uid_t id); | |
69 | void seteuid(uid_t id); | |
70 | void setrgid(uid_t id); | |
71 | void setegid(uid_t id); | |
72 | #endif | |
73 | ||
c07a80fd | 74 | /* |
75 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
76 | */ | |
77 | ||
78 | struct magic_state { | |
79 | SV* mgs_sv; | |
80 | U32 mgs_flags; | |
455ece5e | 81 | I32 mgs_ss_ix; |
c07a80fd | 82 | }; |
455ece5e | 83 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
84 | |
85 | STATIC void | |
8fb26106 | 86 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 87 | { |
455ece5e | 88 | MGS* mgs; |
c07a80fd | 89 | assert(SvMAGICAL(sv)); |
90 | ||
4f1e9d25 | 91 | SAVEDESTRUCTOR_X(S_restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
92 | |
93 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 94 | mgs->mgs_sv = sv; |
95 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 96 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 97 | |
98 | SvMAGICAL_off(sv); | |
99 | SvREADONLY_off(sv); | |
06759ea0 | 100 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 101 | } |
102 | ||
954c1994 GS |
103 | /* |
104 | =for apidoc mg_magical | |
105 | ||
106 | Turns on the magical status of an SV. See C<sv_magic>. | |
107 | ||
108 | =cut | |
109 | */ | |
110 | ||
8990e307 | 111 | void |
864dbfa3 | 112 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 | 113 | { |
c05e0e2f | 114 | const MAGIC* mg; |
8990e307 | 115 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 116 | const MGVTBL* const vtbl = mg->mg_virtual; |
8990e307 | 117 | if (vtbl) { |
2b260de0 | 118 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
119 | SvGMAGICAL_on(sv); |
120 | if (vtbl->svt_set) | |
121 | SvSMAGICAL_on(sv); | |
2b260de0 | 122 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
123 | SvRMAGICAL_on(sv); |
124 | } | |
125 | } | |
126 | } | |
127 | ||
954c1994 GS |
128 | /* |
129 | =for apidoc mg_get | |
130 | ||
131 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
132 | ||
133 | =cut | |
134 | */ | |
135 | ||
79072805 | 136 | int |
864dbfa3 | 137 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 138 | { |
7120cae1 | 139 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
e1633da1 | 140 | const bool was_temp = (bool)SvTEMP(sv); |
fdc5445c | 141 | int have_new = 0; |
ff76feab | 142 | MAGIC *newmg, *head, *cur, *mg; |
159fdece NC |
143 | /* guard against sv having being freed midway by holding a private |
144 | reference. */ | |
145 | ||
146 | /* sv_2mortal has this side effect of turning on the TEMP flag, which can | |
147 | cause the SV's buffer to get stolen (and maybe other stuff). | |
148 | So restore it. | |
149 | */ | |
150 | sv_2mortal(SvREFCNT_inc(sv)); | |
151 | if (!was_temp) { | |
152 | SvTEMP_off(sv); | |
153 | } | |
f414bd1d | 154 | |
455ece5e | 155 | save_magic(mgs_ix, sv); |
463ee0b2 | 156 | |
ff76feab AMS |
157 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
158 | list of magic. svt_get() may delete the current entry, add new | |
159 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
160 | ||
161 | newmg = cur = head = mg = SvMAGIC(sv); | |
162 | while (mg) { | |
7120cae1 | 163 | const MGVTBL * const vtbl = mg->mg_virtual; |
ff76feab | 164 | |
2b260de0 | 165 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 166 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
654c77f7 | 167 | |
90912255 JH |
168 | /* guard against magic having been deleted - eg FETCH calling |
169 | * untie */ | |
170 | if (!SvMAGIC(sv)) | |
171 | break; | |
654c77f7 | 172 | |
ff76feab AMS |
173 | /* Don't restore the flags for this entry if it was deleted. */ |
174 | if (mg->mg_flags & MGf_GSKIP) | |
175 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 176 | } |
ff76feab AMS |
177 | |
178 | mg = mg->mg_moremagic; | |
179 | ||
fdc5445c | 180 | if (have_new) { |
ff76feab AMS |
181 | /* Have we finished with the new entries we saw? Start again |
182 | where we left off (unless there are more new entries). */ | |
183 | if (mg == head) { | |
fdc5445c | 184 | have_new = 0; |
ff76feab AMS |
185 | mg = cur; |
186 | head = newmg; | |
187 | } | |
188 | } | |
189 | ||
190 | /* Were any new entries added? */ | |
fdc5445c NC |
191 | if (!have_new && (newmg = SvMAGIC(sv)) != head) { |
192 | have_new = 1; | |
ff76feab AMS |
193 | cur = mg; |
194 | mg = newmg; | |
760ac839 | 195 | } |
79072805 | 196 | } |
463ee0b2 | 197 | |
4f1e9d25 | 198 | restore_magic(INT2PTR(void *, (IV)mgs_ix)); |
159fdece NC |
199 | |
200 | if (SvREFCNT(sv) == 1) { | |
201 | /* We hold the last reference to this SV, which implies that the | |
202 | SV was deleted as a side effect of the routines we called. */ | |
7460c263 | 203 | SvOK_off(sv); |
159fdece | 204 | } |
79072805 LW |
205 | return 0; |
206 | } | |
207 | ||
954c1994 GS |
208 | /* |
209 | =for apidoc mg_set | |
210 | ||
211 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
212 | ||
213 | =cut | |
214 | */ | |
215 | ||
79072805 | 216 | int |
864dbfa3 | 217 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 218 | { |
7120cae1 | 219 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 220 | MAGIC* mg; |
463ee0b2 LW |
221 | MAGIC* nextmg; |
222 | ||
455ece5e | 223 | save_magic(mgs_ix, sv); |
463ee0b2 LW |
224 | |
225 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
c05e0e2f | 226 | const MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 227 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
228 | if (mg->mg_flags & MGf_GSKIP) { |
229 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 230 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 231 | } |
2b260de0 | 232 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 233 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 234 | } |
463ee0b2 | 235 | |
4f1e9d25 | 236 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
237 | return 0; |
238 | } | |
239 | ||
954c1994 GS |
240 | /* |
241 | =for apidoc mg_length | |
242 | ||
243 | Report on the SV's length. See C<sv_magic>. | |
244 | ||
245 | =cut | |
246 | */ | |
247 | ||
79072805 | 248 | U32 |
864dbfa3 | 249 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
250 | { |
251 | MAGIC* mg; | |
463ee0b2 | 252 | STRLEN len; |
463ee0b2 | 253 | |
79072805 | 254 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 255 | const MGVTBL * const vtbl = mg->mg_virtual; |
2b260de0 | 256 | if (vtbl && vtbl->svt_len) { |
7120cae1 | 257 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
455ece5e | 258 | save_magic(mgs_ix, sv); |
a0d0e21e | 259 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 260 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
4f1e9d25 | 261 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
262 | return len; |
263 | } | |
264 | } | |
265 | ||
7120cae1 | 266 | if (DO_UTF8(sv)) { |
c06c673c | 267 | const U8 *s = (U8*)SvPV_const(sv, len); |
f8b14789 | 268 | len = Perl_utf8_length(aTHX_ (U8*)s, (U8*)s + len); |
5636d518 DB |
269 | } |
270 | else | |
c06c673c | 271 | (void)SvPV_const(sv, len); |
463ee0b2 | 272 | return len; |
79072805 LW |
273 | } |
274 | ||
8fb26106 | 275 | I32 |
864dbfa3 | 276 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
277 | { |
278 | MAGIC* mg; | |
ac27b0f5 | 279 | |
93965878 | 280 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 281 | const MGVTBL* const vtbl = mg->mg_virtual; |
2b260de0 | 282 | if (vtbl && vtbl->svt_len) { |
7120cae1 AL |
283 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
284 | I32 len; | |
455ece5e | 285 | save_magic(mgs_ix, sv); |
93965878 | 286 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 287 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
4f1e9d25 | 288 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
289 | return len; |
290 | } | |
291 | } | |
292 | ||
293 | switch(SvTYPE(sv)) { | |
294 | case SVt_PVAV: | |
7120cae1 | 295 | return AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
93965878 NIS |
296 | case SVt_PVHV: |
297 | /* FIXME */ | |
298 | default: | |
cea2e8a9 | 299 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
300 | break; |
301 | } | |
302 | return 0; | |
303 | } | |
304 | ||
954c1994 GS |
305 | /* |
306 | =for apidoc mg_clear | |
307 | ||
308 | Clear something magical that the SV represents. See C<sv_magic>. | |
309 | ||
310 | =cut | |
311 | */ | |
312 | ||
79072805 | 313 | int |
864dbfa3 | 314 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 315 | { |
7120cae1 | 316 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 317 | MAGIC* mg; |
463ee0b2 | 318 | |
455ece5e | 319 | save_magic(mgs_ix, sv); |
463ee0b2 | 320 | |
79072805 | 321 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 322 | const MGVTBL* const vtbl = mg->mg_virtual; |
a0d0e21e | 323 | /* omit GSKIP -- never set here */ |
727405f8 | 324 | |
2b260de0 | 325 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 326 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 327 | } |
463ee0b2 | 328 | |
4f1e9d25 | 329 | restore_magic(INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
330 | return 0; |
331 | } | |
332 | ||
954c1994 GS |
333 | /* |
334 | =for apidoc mg_find | |
335 | ||
336 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
337 | ||
338 | =cut | |
339 | */ | |
340 | ||
93a17b20 | 341 | MAGIC* |
864dbfa3 | 342 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 | 343 | { |
7120cae1 AL |
344 | if (sv) { |
345 | MAGIC *mg; | |
346 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
347 | if (mg->mg_type == type) | |
348 | return mg; | |
349 | } | |
93a17b20 LW |
350 | } |
351 | return 0; | |
352 | } | |
353 | ||
954c1994 GS |
354 | /* |
355 | =for apidoc mg_copy | |
356 | ||
357 | Copies the magic from one SV to another. See C<sv_magic>. | |
358 | ||
359 | =cut | |
360 | */ | |
361 | ||
79072805 | 362 | int |
864dbfa3 | 363 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 364 | { |
463ee0b2 | 365 | int count = 0; |
79072805 | 366 | MAGIC* mg; |
463ee0b2 | 367 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
7120cae1 | 368 | const MGVTBL* const vtbl = mg->mg_virtual; |
68795e93 NIS |
369 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
370 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
371 | } | |
372 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 373 | sv_magic(nsv, |
14befaf4 DM |
374 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
375 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
376 | ? sv : mg->mg_obj, | |
33c27489 | 377 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 378 | count++; |
79072805 | 379 | } |
79072805 | 380 | } |
463ee0b2 | 381 | return count; |
79072805 LW |
382 | } |
383 | ||
954c1994 GS |
384 | /* |
385 | =for apidoc mg_free | |
386 | ||
387 | Free any magic storage used by the SV. See C<sv_magic>. | |
388 | ||
389 | =cut | |
390 | */ | |
391 | ||
79072805 | 392 | int |
864dbfa3 | 393 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
394 | { |
395 | MAGIC* mg; | |
396 | MAGIC* moremagic; | |
397 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
7120cae1 | 398 | const MGVTBL* const vtbl = mg->mg_virtual; |
79072805 | 399 | moremagic = mg->mg_moremagic; |
2b260de0 | 400 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 401 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 402 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
4a9f3d2e | 403 | if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8) |
88e89b8a | 404 | Safefree(mg->mg_ptr); |
565764a8 | 405 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 406 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 407 | } |
b881518d JH |
408 | if (mg->mg_flags & MGf_REFCOUNTED) |
409 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
410 | Safefree(mg); |
411 | } | |
a8dc4fe8 | 412 | SvMAGIC_set(sv, NULL); |
79072805 LW |
413 | return 0; |
414 | } | |
415 | ||
79072805 | 416 | #include <signal.h> |
79072805 | 417 | |
942e002e | 418 | U32 |
864dbfa3 | 419 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 420 | { |
7120cae1 | 421 | register const REGEXP *rx; |
4f1e9d25 | 422 | PERL_UNUSED_ARG(sv); |
6cef1e77 | 423 | |
aaa362c4 | 424 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
425 | if (mg->mg_obj) /* @+ */ |
426 | return rx->nparens; | |
427 | else /* @- */ | |
428 | return rx->lastparen; | |
429 | } | |
ac27b0f5 | 430 | |
942e002e | 431 | return (U32)-1; |
6cef1e77 IZ |
432 | } |
433 | ||
434 | int | |
864dbfa3 | 435 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 436 | { |
6cef1e77 | 437 | register REGEXP *rx; |
6cef1e77 | 438 | |
aaa362c4 | 439 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
7120cae1 AL |
440 | register const I32 paren = mg->mg_len; |
441 | register I32 s; | |
442 | register I32 t; | |
6cef1e77 IZ |
443 | if (paren < 0) |
444 | return 0; | |
eb160463 | 445 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
446 | (s = rx->startp[paren]) != -1 && |
447 | (t = rx->endp[paren]) != -1) | |
6cef1e77 | 448 | { |
7120cae1 | 449 | register I32 i; |
6cef1e77 | 450 | if (mg->mg_obj) /* @+ */ |
cf93c79d | 451 | i = t; |
6cef1e77 | 452 | else /* @- */ |
cf93c79d | 453 | i = s; |
727405f8 | 454 | |
2ea5368e | 455 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
4f1e9d25 | 456 | const char * const b = rx->subbeg; |
0064a8a9 JH |
457 | if (b) |
458 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 459 | } |
0064a8a9 JH |
460 | |
461 | sv_setiv(sv, i); | |
6cef1e77 IZ |
462 | } |
463 | } | |
464 | return 0; | |
465 | } | |
466 | ||
e4b89193 | 467 | int |
a29d06ed MG |
468 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
469 | { | |
4f1e9d25 | 470 | PERL_UNUSED_ARG(sv); PERL_UNUSED_ARG(mg); |
a29d06ed | 471 | Perl_croak(aTHX_ PL_no_modify); |
24c2fff4 | 472 | NORETURN_FUNCTION_END; |
a29d06ed MG |
473 | } |
474 | ||
93a17b20 | 475 | U32 |
864dbfa3 | 476 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
477 | { |
478 | register I32 paren; | |
93a17b20 | 479 | register I32 i; |
0473add9 | 480 | register const REGEXP *rx; |
a197cbdd | 481 | I32 s1, t1; |
93a17b20 LW |
482 | |
483 | switch (*mg->mg_ptr) { | |
484 | case '1': case '2': case '3': case '4': | |
485 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 486 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 487 | |
ffc61ed2 | 488 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 489 | getparen: |
eb160463 | 490 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
491 | (s1 = rx->startp[paren]) != -1 && |
492 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 493 | { |
cf93c79d | 494 | i = t1 - s1; |
a197cbdd | 495 | getlen: |
2ea5368e | 496 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
e4057cfc | 497 | const char * const s = rx->subbeg + s1; |
d7a71dc3 NC |
498 | const U8 *ep; |
499 | STRLEN el; | |
ffc61ed2 | 500 | |
6d5fa195 | 501 | i = t1 - s1; |
d7a71dc3 NC |
502 | if (is_utf8_string_loclen((U8*)s, i, &ep, &el)) |
503 | i = el; | |
a197cbdd | 504 | } |
ffc61ed2 | 505 | if (i < 0) |
0844c848 | 506 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 507 | return i; |
93a17b20 | 508 | } |
235bddc8 NIS |
509 | else { |
510 | if (ckWARN(WARN_UNINITIALIZED)) | |
511 | report_uninit(); | |
512 | } | |
513 | } | |
514 | else { | |
515 | if (ckWARN(WARN_UNINITIALIZED)) | |
516 | report_uninit(); | |
93a17b20 | 517 | } |
748a9306 | 518 | return 0; |
93a17b20 | 519 | case '+': |
aaa362c4 | 520 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 521 | paren = rx->lastparen; |
13f57bf8 CS |
522 | if (paren) |
523 | goto getparen; | |
93a17b20 | 524 | } |
748a9306 | 525 | return 0; |
a01268b5 JH |
526 | case '\016': /* ^N */ |
527 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
528 | paren = rx->lastcloseparen; | |
529 | if (paren) | |
530 | goto getparen; | |
531 | } | |
532 | return 0; | |
93a17b20 | 533 | case '`': |
aaa362c4 | 534 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
535 | if (rx->startp[0] != -1) { |
536 | i = rx->startp[0]; | |
a197cbdd GS |
537 | if (i > 0) { |
538 | s1 = 0; | |
539 | t1 = i; | |
540 | goto getlen; | |
541 | } | |
93a17b20 | 542 | } |
93a17b20 | 543 | } |
748a9306 | 544 | return 0; |
93a17b20 | 545 | case '\'': |
aaa362c4 | 546 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
547 | if (rx->endp[0] != -1) { |
548 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
549 | if (i > 0) { |
550 | s1 = rx->endp[0]; | |
551 | t1 = rx->sublen; | |
552 | goto getlen; | |
553 | } | |
93a17b20 | 554 | } |
93a17b20 | 555 | } |
748a9306 | 556 | return 0; |
93a17b20 LW |
557 | } |
558 | magic_get(sv,mg); | |
2d8e6c8d | 559 | if (!SvPOK(sv) && SvNIOK(sv)) { |
db1c9db1 | 560 | sv_2pv(sv, 0); |
2d8e6c8d | 561 | } |
93a17b20 LW |
562 | if (SvPOK(sv)) |
563 | return SvCUR(sv); | |
564 | return 0; | |
565 | } | |
566 | ||
79072805 | 567 | int |
864dbfa3 | 568 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
569 | { |
570 | register I32 paren; | |
1c89cf1a | 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; |
49460fe6 NIS |
579 | case '\003': /* ^C */ |
580 | sv_setiv(sv, (IV)PL_minus_c); | |
581 | break; | |
582 | ||
79072805 | 583 | case '\004': /* ^D */ |
aea4f609 | 584 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 585 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 586 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 587 | #endif |
79072805 | 588 | break; |
28f23441 | 589 | case '\005': /* ^E */ |
0a378802 | 590 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 591 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
592 | { |
593 | char msg[256]; | |
727405f8 | 594 | |
0a378802 | 595 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 596 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 597 | } |
727405f8 | 598 | #else |
28f23441 | 599 | #ifdef VMS |
0a378802 JH |
600 | { |
601 | # include <descrip.h> | |
602 | # include <starlet.h> | |
603 | char msg[255]; | |
604 | $DESCRIPTOR(msgdsc,msg); | |
605 | sv_setnv(sv,(NV) vaxc$errno); | |
606 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
607 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
608 | else | |
2a8de9e2 | 609 | sv_setpvn(sv,"",0); |
0a378802 | 610 | } |
28f23441 | 611 | #else |
88e89b8a | 612 | #ifdef OS2 |
0a378802 JH |
613 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
614 | sv_setnv(sv, (NV)errno); | |
615 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
616 | } else { | |
617 | if (errno != errno_isOS2) { | |
618 | int tmp = _syserrno(); | |
619 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
620 | Perl_rc = tmp; | |
621 | } | |
622 | sv_setnv(sv, (NV)Perl_rc); | |
623 | sv_setpv(sv, os2error(Perl_rc)); | |
624 | } | |
88e89b8a | 625 | #else |
22fae026 | 626 | #ifdef WIN32 |
0a378802 JH |
627 | { |
628 | DWORD dwErr = GetLastError(); | |
629 | sv_setnv(sv, (NV)dwErr); | |
630 | if (dwErr) | |
631 | { | |
632 | PerlProc_GetOSError(sv, dwErr); | |
633 | } | |
634 | else | |
2a8de9e2 | 635 | sv_setpvn(sv, "", 0); |
0a378802 JH |
636 | SetLastError(dwErr); |
637 | } | |
22fae026 | 638 | #else |
8101cb80 | 639 | { |
4f1e9d25 | 640 | const int saveerrno = errno; |
8101cb80 NC |
641 | sv_setnv(sv, (NV)errno); |
642 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
643 | errno = saveerrno; | |
644 | } | |
28f23441 | 645 | #endif |
88e89b8a | 646 | #endif |
22fae026 | 647 | #endif |
cd39f2b6 | 648 | #endif |
0a378802 JH |
649 | SvNOK_on(sv); /* what a wonderful hack! */ |
650 | } | |
651 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
652 | sv_setsv(sv, PL_encoding); | |
653 | break; | |
79072805 | 654 | case '\006': /* ^F */ |
3280af22 | 655 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 656 | break; |
a0d0e21e | 657 | case '\010': /* ^H */ |
3280af22 | 658 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 659 | break; |
9d116dd7 | 660 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
661 | if (PL_inplace) |
662 | sv_setpv(sv, PL_inplace); | |
79072805 | 663 | else |
3280af22 | 664 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 665 | break; |
ac27b0f5 | 666 | case '\017': /* ^O & ^OPEN */ |
908fffd2 | 667 | if (*(mg->mg_ptr+1) == '\0') { |
ac27b0f5 | 668 | sv_setpv(sv, PL_osname); |
908fffd2 NC |
669 | SvTAINTED_off(sv); |
670 | } | |
ac27b0f5 NIS |
671 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
672 | if (!PL_compiling.cop_io) | |
673 | sv_setsv(sv, &PL_sv_undef); | |
674 | else { | |
675 | sv_setsv(sv, PL_compiling.cop_io); | |
676 | } | |
677 | } | |
28f23441 | 678 | break; |
79072805 | 679 | case '\020': /* ^P */ |
3280af22 | 680 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 681 | break; |
fb73857a | 682 | case '\023': /* ^S */ |
5835a535 | 683 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 684 | if (PL_lex_state != LEX_NOTPARSING) |
7460c263 | 685 | SvOK_off(sv); |
3280af22 | 686 | else if (PL_in_eval) |
6dc8a9e4 | 687 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
688 | else |
689 | sv_setiv(sv, 0); | |
d58bf5aa | 690 | } |
fb73857a | 691 | break; |
79072805 | 692 | case '\024': /* ^T */ |
7c36658b | 693 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 694 | #ifdef BIG_TIME |
7c36658b | 695 | sv_setnv(sv, PL_basetime); |
88e89b8a | 696 | #else |
7c36658b | 697 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 698 | #endif |
7c36658b MS |
699 | } |
700 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
b38fef15 JH |
701 | sv_setiv(sv, PL_tainting |
702 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
703 | : 0); | |
7c36658b | 704 | break; |
4c9c322d | 705 | case '\025': /* $^UNICODE, $^UTF8LOCALE */ |
f8bb70a6 JH |
706 | if (strEQ(mg->mg_ptr, "\025NICODE")) |
707 | sv_setuv(sv, (UV) PL_unicode); | |
4c9c322d NC |
708 | else if (strEQ(mg->mg_ptr, "\025TF8LOCALE")) |
709 | sv_setuv(sv, (UV) PL_utf8locale); | |
6563884d JH |
710 | break; |
711 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
712 | if (*(mg->mg_ptr+1) == '\0') |
713 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 714 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4cd59068 | 715 | if (PL_compiling.cop_warnings == pWARN_NONE) { |
4438c4b7 | 716 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
4cd59068 NC |
717 | } |
718 | else if (PL_compiling.cop_warnings == pWARN_STD) { | |
719 | sv_setpvn( | |
720 | sv, | |
721 | (PL_dowarn & G_WARN_ON) ? WARN_ALLstring : WARN_NONEstring, | |
722 | WARNsize | |
723 | ); | |
724 | } | |
d3a7d8c7 | 725 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
9648d1c1 NC |
726 | /* Get the bit mask for $warnings::Bits{all}, because |
727 | * it could have been extended by warnings::register */ | |
728 | SV **bits_all; | |
729 | HV *bits=get_hv("warnings::Bits", FALSE); | |
730 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
731 | sv_setsv(sv, *bits_all); | |
732 | } | |
733 | else { | |
734 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
735 | } | |
ac27b0f5 | 736 | } |
4438c4b7 JH |
737 | else { |
738 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 739 | } |
d3a7d8c7 | 740 | SvPOK_only(sv); |
4438c4b7 | 741 | } |
79072805 LW |
742 | break; |
743 | case '1': case '2': case '3': case '4': | |
744 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 745 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
746 | I32 s1, t1; |
747 | ||
a863c7d1 MB |
748 | /* |
749 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
750 | * XXX Does the new way break anything? | |
751 | */ | |
ffc61ed2 | 752 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 753 | getparen: |
eb160463 | 754 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
755 | (s1 = rx->startp[paren]) != -1 && |
756 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 757 | { |
cf93c79d IZ |
758 | i = t1 - s1; |
759 | s = rx->subbeg + s1; | |
01ec43d0 | 760 | if (!rx->subbeg) |
c2e66d9e GS |
761 | break; |
762 | ||
13f57bf8 | 763 | getrx: |
748a9306 | 764 | if (i >= 0) { |
cf93c79d | 765 | sv_setpvn(sv, s, i); |
2ea5368e | 766 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
767 | SvUTF8_on(sv); |
768 | else | |
769 | SvUTF8_off(sv); | |
5b7ea690 JH |
770 | if (PL_tainting) { |
771 | if (RX_MATCH_TAINTED(rx)) { | |
772 | MAGIC* mg = SvMAGIC(sv); | |
773 | MAGIC* mgt; | |
774 | PL_tainted = 1; | |
a8dc4fe8 | 775 | SvMAGIC_set(sv, mg->mg_moremagic); |
5b7ea690 JH |
776 | SvTAINT(sv); |
777 | if ((mgt = SvMAGIC(sv))) { | |
778 | mg->mg_moremagic = mgt; | |
a8dc4fe8 | 779 | SvMAGIC_set(sv, mg); |
5b7ea690 JH |
780 | } |
781 | } else | |
782 | SvTAINTED_off(sv); | |
783 | } | |
748a9306 LW |
784 | break; |
785 | } | |
79072805 | 786 | } |
79072805 | 787 | } |
3280af22 | 788 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
789 | break; |
790 | case '+': | |
aaa362c4 | 791 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 792 | paren = rx->lastparen; |
a0d0e21e LW |
793 | if (paren) |
794 | goto getparen; | |
79072805 | 795 | } |
3280af22 | 796 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 797 | break; |
a01268b5 JH |
798 | case '\016': /* ^N */ |
799 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
800 | paren = rx->lastcloseparen; | |
801 | if (paren) | |
802 | goto getparen; | |
803 | } | |
804 | sv_setsv(sv,&PL_sv_undef); | |
805 | break; | |
79072805 | 806 | case '`': |
aaa362c4 | 807 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
808 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
809 | i = rx->startp[0]; | |
13f57bf8 | 810 | goto getrx; |
79072805 | 811 | } |
79072805 | 812 | } |
3280af22 | 813 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
814 | break; |
815 | case '\'': | |
aaa362c4 | 816 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
817 | if (rx->subbeg && rx->endp[0] != -1) { |
818 | s = rx->subbeg + rx->endp[0]; | |
819 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 820 | goto getrx; |
79072805 | 821 | } |
79072805 | 822 | } |
3280af22 | 823 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
824 | break; |
825 | case '.': | |
3280af22 | 826 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 827 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 | 828 | } |
79072805 LW |
829 | break; |
830 | case '?': | |
809a5acc | 831 | { |
809a5acc | 832 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 833 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
834 | LvTARGOFF(sv) = PL_statusvalue; |
835 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 836 | #endif |
809a5acc | 837 | } |
79072805 LW |
838 | break; |
839 | case '^': | |
8f34e12f JH |
840 | if (GvIOp(PL_defoutgv)) |
841 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
842 | if (s) |
843 | sv_setpv(sv,s); | |
844 | else { | |
3280af22 | 845 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
846 | sv_catpv(sv,"_TOP"); |
847 | } | |
848 | break; | |
849 | case '~': | |
8f34e12f JH |
850 | if (GvIOp(PL_defoutgv)) |
851 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 852 | if (!s) |
3280af22 | 853 | s = GvENAME(PL_defoutgv); |
79072805 LW |
854 | sv_setpv(sv,s); |
855 | break; | |
79072805 | 856 | case '=': |
8f34e12f JH |
857 | if (GvIOp(PL_defoutgv)) |
858 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
859 | break; |
860 | case '-': | |
8f34e12f JH |
861 | if (GvIOp(PL_defoutgv)) |
862 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
863 | break; |
864 | case '%': | |
8f34e12f JH |
865 | if (GvIOp(PL_defoutgv)) |
866 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 | 867 | break; |
79072805 LW |
868 | case ':': |
869 | break; | |
870 | case '/': | |
871 | break; | |
872 | case '[': | |
3280af22 | 873 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
874 | break; |
875 | case '|': | |
8f34e12f JH |
876 | if (GvIOp(PL_defoutgv)) |
877 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
878 | break; |
879 | case ',': | |
79072805 LW |
880 | break; |
881 | case '\\': | |
b2ce0fda | 882 | if (PL_ors_sv) |
734593ba | 883 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
884 | break; |
885 | case '#': | |
3280af22 | 886 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
887 | break; |
888 | case '!': | |
a5f75d66 | 889 | #ifdef VMS |
65202027 | 890 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 891 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 892 | #else |
88e89b8a | 893 | { |
4f1e9d25 | 894 | const int saveerrno = errno; |
65202027 | 895 | sv_setnv(sv, (NV)errno); |
88e89b8a | 896 | #ifdef OS2 |
ed344e4f IZ |
897 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
898 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 899 | else |
a5f75d66 | 900 | #endif |
2304df62 | 901 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 902 | errno = saveerrno; |
903 | } | |
904 | #endif | |
946ec16e | 905 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
906 | break; |
907 | case '<': | |
3280af22 | 908 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
909 | break; |
910 | case '>': | |
3280af22 | 911 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
912 | break; |
913 | case '(': | |
3280af22 | 914 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 915 | #ifdef HAS_GETGROUPS |
8c18bf38 | 916 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_gid); |
a52cb5f7 | 917 | #endif |
79072805 LW |
918 | goto add_groups; |
919 | case ')': | |
3280af22 | 920 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 921 | #ifdef HAS_GETGROUPS |
8c18bf38 | 922 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, (long unsigned int)PL_egid); |
a52cb5f7 | 923 | #endif |
79072805 | 924 | add_groups: |
79072805 | 925 | #ifdef HAS_GETGROUPS |
79072805 | 926 | { |
a0d0e21e | 927 | Groups_t gary[NGROUPS]; |
8c18bf38 AL |
928 | I32 j = getgroups(NGROUPS,gary); |
929 | while (--j >= 0) | |
930 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, (long unsigned int)gary[j]); | |
79072805 LW |
931 | } |
932 | #endif | |
155aba94 | 933 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
934 | break; |
935 | case '*': | |
936 | break; | |
cd39f2b6 | 937 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
938 | case '0': |
939 | break; | |
cd39f2b6 | 940 | #endif |
4d1ff10f | 941 | #ifdef USE_5005THREADS |
a863c7d1 | 942 | case '@': |
38a03e6e | 943 | sv_setsv(sv, thr->errsv); |
a863c7d1 | 944 | break; |
4d1ff10f | 945 | #endif /* USE_5005THREADS */ |
79072805 | 946 | } |
a0d0e21e | 947 | return 0; |
79072805 LW |
948 | } |
949 | ||
950 | int | |
864dbfa3 | 951 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 952 | { |
4f1e9d25 | 953 | struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
954 | |
955 | if (uf && uf->uf_val) | |
24f81a43 | 956 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
957 | return 0; |
958 | } | |
959 | ||
960 | int | |
864dbfa3 | 961 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 962 | { |
23c2bb70 | 963 | const char *s; |
c06c673c | 964 | const char *ptr; |
5aabfad6 | 965 | STRLEN len, klen; |
1e422769 | 966 | |
23c2bb70 | 967 | s = SvPV_const(sv,len); |
c06c673c | 968 | ptr = MgPV_const(mg,klen); |
f8b14789 | 969 | my_setenv((char *)ptr, (char *)s); |
1e422769 | 970 | |
a0d0e21e LW |
971 | #ifdef DYNAMIC_ENV_FETCH |
972 | /* We just undefd an environment var. Is a replacement */ | |
973 | /* waiting in the wings? */ | |
974 | if (!len) { | |
5aabfad6 | 975 | SV **valp; |
6b88bc9c | 976 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
23c2bb70 | 977 | s = SvPV_const(*valp, len); |
a0d0e21e LW |
978 | } |
979 | #endif | |
1e422769 | 980 | |
39e571d4 | 981 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
982 | /* And you'll never guess what the dog had */ |
983 | /* in its mouth... */ | |
3280af22 | 984 | if (PL_tainting) { |
1e422769 | 985 | MgTAINTEDDIR_off(mg); |
986 | #ifdef VMS | |
5aabfad6 | 987 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
3d867ace | 988 | char pathbuf[256], eltbuf[256], *cp, *elt = (char *) s; |
c623ac67 | 989 | Stat_t sbuf; |
1e422769 | 990 | int i = 0, j = 0; |
991 | ||
992 | do { /* DCL$PATH may be a search list */ | |
993 | while (1) { /* as may dev portion of any element */ | |
994 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
995 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
996 | cando_by_name(S_IWUSR,0,elt) ) { | |
997 | MgTAINTEDDIR_on(mg); | |
998 | return 0; | |
999 | } | |
1000 | } | |
1001 | if ((cp = strchr(elt, ':')) != Nullch) | |
1002 | *cp = '\0'; | |
1003 | if (my_trnlnm(elt, eltbuf, j++)) | |
1004 | elt = eltbuf; | |
1005 | else | |
1006 | break; | |
1007 | } | |
1008 | j = 0; | |
1009 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
1010 | } | |
1011 | #endif /* VMS */ | |
5aabfad6 | 1012 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
4f1e9d25 | 1013 | const char * const strend = s + len; |
463ee0b2 LW |
1014 | |
1015 | while (s < strend) { | |
96827780 | 1016 | char tmpbuf[256]; |
c623ac67 | 1017 | Stat_t st; |
5f74f29c | 1018 | I32 i; |
96827780 | 1019 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
f8b14789 | 1020 | (char *) s, (char *) strend, ':', &i); |
463ee0b2 | 1021 | s++; |
96827780 MB |
1022 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
1023 | || *tmpbuf != '/' | |
c6ed36e1 | 1024 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 1025 | MgTAINTEDDIR_on(mg); |
1e422769 | 1026 | return 0; |
1027 | } | |
463ee0b2 | 1028 | } |
79072805 LW |
1029 | } |
1030 | } | |
39e571d4 | 1031 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1032 | |
79072805 LW |
1033 | return 0; |
1034 | } | |
1035 | ||
1036 | int | |
864dbfa3 | 1037 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1038 | { |
4f1e9d25 | 1039 | PERL_UNUSED_ARG(sv); |
f8b14789 | 1040 | my_setenv((char *)MgPV_nolen_const(mg),Nullch); |
85e6fe83 LW |
1041 | return 0; |
1042 | } | |
1043 | ||
88e89b8a | 1044 | int |
864dbfa3 | 1045 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1046 | { |
64596349 | 1047 | #if defined(VMS) |
cea2e8a9 | 1048 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1049 | #else |
3280af22 | 1050 | if (PL_localizing) { |
fb73857a | 1051 | HE* entry; |
64596349 | 1052 | my_clearenv(); |
fb73857a | 1053 | hv_iterinit((HV*)sv); |
155aba94 | 1054 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1055 | I32 keylen; |
1056 | my_setenv(hv_iterkey(entry, &keylen), | |
f8b14789 | 1057 | (char *)SvPV_nolen_const(hv_iterval((HV*)sv, entry))); |
fb73857a | 1058 | } |
1059 | } | |
1060 | #endif | |
1061 | return 0; | |
1062 | } | |
1063 | ||
1064 | int | |
864dbfa3 | 1065 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1066 | { |
64596349 AB |
1067 | PERL_UNUSED_ARG(sv); |
1068 | PERL_UNUSED_ARG(mg); | |
75a5c1c6 | 1069 | #ifndef PERL_MICRO |
64596349 | 1070 | #if defined(VMS) |
cea2e8a9 | 1071 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1072 | #else |
64596349 AB |
1073 | my_clearenv(); |
1074 | #endif | |
75a5c1c6 | 1075 | #endif /* !PERL_MICRO */ |
3e3baf6d | 1076 | return 0; |
66b1d557 HM |
1077 | } |
1078 | ||
2e34cc90 | 1079 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
fe20fd30 | 1080 | static int PL_sig_handlers_initted = 0; |
2e34cc90 | 1081 | #endif |
7719e241 | 1082 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
fe20fd30 | 1083 | static int PL_sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
85b332e2 | 1084 | #endif |
2e34cc90 | 1085 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
fe20fd30 | 1086 | static int PL_sig_defaulting[SIG_SIZE]; |
2e34cc90 | 1087 | #endif |
85b332e2 | 1088 | |
64ca3a65 | 1089 | #ifndef PERL_MICRO |
d2aaa77e JH |
1090 | #ifdef HAS_SIGPROCMASK |
1091 | static void | |
1092 | restore_sigmask(pTHX_ SV *save_sv) | |
1093 | { | |
23c2bb70 | 1094 | const sigset_t *ossetp = (const sigset_t *) SvPV_nolen_const( save_sv ); |
d2aaa77e JH |
1095 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); |
1096 | } | |
1097 | #endif | |
66b1d557 | 1098 | int |
864dbfa3 | 1099 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1100 | { |
88e89b8a | 1101 | /* Are we fetching a signal entry? */ |
f8b14789 | 1102 | const I32 i = whichsig((char *)MgPV_nolen_const(mg)); |
582e5fa1 | 1103 | if (i > 0) { |
22c35a8c GS |
1104 | if(PL_psig_ptr[i]) |
1105 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1106 | else { |
85b332e2 | 1107 | Sighandler_t sigstate; |
2e34cc90 | 1108 | sigstate = rsignal_state(i); |
23ada85b | 1109 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
fe20fd30 | 1110 | if (PL_sig_handlers_initted && PL_sig_ignoring[i]) sigstate = SIG_IGN; |
2e34cc90 CL |
1111 | #endif |
1112 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
fe20fd30 | 1113 | if (PL_sig_handlers_initted && PL_sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 | 1114 | #endif |
88e89b8a | 1115 | /* cache state so we don't fetch it again */ |
ff68c719 | 1116 | if(sigstate == SIG_IGN) |
88e89b8a | 1117 | sv_setpv(sv,"IGNORE"); |
1118 | else | |
3280af22 | 1119 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1120 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1121 | SvTEMP_off(sv); |
1122 | } | |
1123 | } | |
1124 | return 0; | |
1125 | } | |
1126 | int | |
864dbfa3 | 1127 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1128 | { |
d2aaa77e JH |
1129 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1130 | * refactoring might be in order. | |
1131 | */ | |
4f1e9d25 AL |
1132 | register const char * const s = MgPV_nolen_const(mg); |
1133 | PERL_UNUSED_ARG(sv); | |
d2aaa77e | 1134 | if (*s == '_') { |
fe20fd30 | 1135 | SV** svp = 0; |
d2aaa77e JH |
1136 | if (strEQ(s,"__DIE__")) |
1137 | svp = &PL_diehook; | |
1138 | else if (strEQ(s,"__WARN__")) | |
1139 | svp = &PL_warnhook; | |
1140 | else | |
1141 | Perl_croak(aTHX_ "No such hook: %s", s); | |
fe20fd30 | 1142 | if (svp && *svp) { |
4f1e9d25 | 1143 | SV * const to_dec = *svp; |
d2aaa77e JH |
1144 | *svp = 0; |
1145 | SvREFCNT_dec(to_dec); | |
1146 | } | |
1147 | } | |
1148 | else { | |
d2aaa77e | 1149 | /* Are we clearing a signal entry? */ |
f8b14789 | 1150 | const I32 i = whichsig((char *)s); |
582e5fa1 | 1151 | if (i > 0) { |
d2aaa77e JH |
1152 | #ifdef HAS_SIGPROCMASK |
1153 | sigset_t set, save; | |
1154 | SV* save_sv; | |
1155 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1156 | sigemptyset(&set); | |
1157 | sigaddset(&set,i); | |
1158 | sigprocmask(SIG_BLOCK, &set, &save); | |
1159 | ENTER; | |
1160 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1161 | SAVEFREESV(save_sv); | |
1162 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1163 | #endif | |
1164 | PERL_ASYNC_CHECK(); | |
1165 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
fe20fd30 | 1166 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
d2aaa77e JH |
1167 | #endif |
1168 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
fe20fd30 | 1169 | PL_sig_defaulting[i] = 1; |
71b97453 | 1170 | (void)rsignal(i, PL_csighandlerp); |
d2aaa77e JH |
1171 | #else |
1172 | (void)rsignal(i, SIG_DFL); | |
1173 | #endif | |
1174 | if(PL_psig_name[i]) { | |
1175 | SvREFCNT_dec(PL_psig_name[i]); | |
1176 | PL_psig_name[i]=0; | |
1177 | } | |
1178 | if(PL_psig_ptr[i]) { | |
0473add9 | 1179 | SV *to_dec=PL_psig_ptr[i]; |
d2aaa77e JH |
1180 | PL_psig_ptr[i]=0; |
1181 | LEAVE; | |
1182 | SvREFCNT_dec(to_dec); | |
1183 | } | |
1184 | else | |
1185 | LEAVE; | |
1186 | } | |
88e89b8a | 1187 | } |
1188 | return 0; | |
1189 | } | |
3d37d572 | 1190 | |
0473add9 AL |
1191 | static void |
1192 | S_raise_signal(pTHX_ int sig) | |
0a8e0eff NIS |
1193 | { |
1194 | /* Set a flag to say this signal is pending */ | |
1195 | PL_psig_pend[sig]++; | |
1196 | /* And one to say _a_ signal is pending */ | |
1197 | PL_sig_pending = 1; | |
1198 | } | |
1199 | ||
1200 | Signal_t | |
1201 | Perl_csighandler(int sig) | |
1202 | { | |
1018e26f NIS |
1203 | #ifdef PERL_GET_SIG_CONTEXT |
1204 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1205 | #else | |
85b332e2 CL |
1206 | dTHX; |
1207 | #endif | |
23ada85b | 1208 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
71b97453 | 1209 | (void) rsignal(sig, PL_csighandlerp); |
fe20fd30 | 1210 | if (PL_sig_ignoring[sig]) return; |
85b332e2 | 1211 | #endif |
2e34cc90 | 1212 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
fe20fd30 | 1213 | if (PL_sig_defaulting[sig]) |
2e34cc90 CL |
1214 | #ifdef KILL_BY_SIGPRC |
1215 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1216 | #else | |
1217 | exit(1); | |
1218 | #endif | |
1219 | #endif | |
5835a535 JH |
1220 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1221 | /* Call the perl level handler now-- | |
1222 | * with risk we may be in malloc() etc. */ | |
1223 | (*PL_sighandlerp)(sig); | |
1224 | else | |
0473add9 | 1225 | S_raise_signal(aTHX_ sig); |
0a8e0eff NIS |
1226 | } |
1227 | ||
2e34cc90 CL |
1228 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1229 | void | |
1230 | Perl_csighandler_init(void) | |
1231 | { | |
1232 | int sig; | |
fe20fd30 | 1233 | if (PL_sig_handlers_initted) return; |
2e34cc90 CL |
1234 | |
1235 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1236 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1237 | dTHX; |
fe20fd30 | 1238 | PL_sig_defaulting[sig] = 1; |
71b97453 | 1239 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1240 | #endif |
1241 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
fe20fd30 | 1242 | PL_sig_ignoring[sig] = 0; |
2e34cc90 CL |
1243 | #endif |
1244 | } | |
fe20fd30 | 1245 | PL_sig_handlers_initted = 1; |
2e34cc90 CL |
1246 | } |
1247 | #endif | |
1248 | ||
0a8e0eff NIS |
1249 | void |
1250 | Perl_despatch_signals(pTHX) | |
1251 | { | |
1252 | int sig; | |
1253 | PL_sig_pending = 0; | |
1254 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1255 | if (PL_psig_pend[sig]) { | |
5835a535 JH |
1256 | PERL_BLOCKSIG_ADD(set, sig); |
1257 | PL_psig_pend[sig] = 0; | |
1258 | PERL_BLOCKSIG_BLOCK(set); | |
0a8e0eff | 1259 | (*PL_sighandlerp)(sig); |
5835a535 | 1260 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1261 | } |
1262 | } | |
1263 | } | |
1264 | ||
85e6fe83 | 1265 | int |
864dbfa3 | 1266 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1267 | { |
79072805 | 1268 | I32 i; |
b7953727 | 1269 | SV** svp = 0; |
d2aaa77e JH |
1270 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1271 | * effects (due to closures). We must make sure that the new disposition | |
1272 | * is in place before it is called. | |
1273 | */ | |
1274 | SV* to_dec = 0; | |
e72dc28c | 1275 | STRLEN len; |
d2aaa77e JH |
1276 | #ifdef HAS_SIGPROCMASK |
1277 | sigset_t set, save; | |
1278 | SV* save_sv; | |
1279 | #endif | |
a0d0e21e | 1280 | |
23c2bb70 | 1281 | register const char *s = MgPV_const(mg,len); |
748a9306 LW |
1282 | if (*s == '_') { |
1283 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1284 | svp = &PL_diehook; |
748a9306 | 1285 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1286 | svp = &PL_warnhook; |
748a9306 | 1287 | else |
cea2e8a9 | 1288 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1289 | i = 0; |
4633a7c4 | 1290 | if (*svp) { |
d2aaa77e | 1291 | to_dec = *svp; |
4633a7c4 LW |
1292 | *svp = 0; |
1293 | } | |
748a9306 LW |
1294 | } |
1295 | else { | |
f8b14789 | 1296 | i = whichsig((char *)s); /* ...no, a brick */ |
2098fb77 | 1297 | if (i <= 0) { |
e476b1b5 | 1298 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1299 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1300 | return 0; |
1301 | } | |
d2aaa77e JH |
1302 | #ifdef HAS_SIGPROCMASK |
1303 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1304 | sigemptyset(&set); | |
1305 | sigaddset(&set,i); | |
1306 | sigprocmask(SIG_BLOCK, &set, &save); | |
1307 | ENTER; | |
1308 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1309 | SAVEFREESV(save_sv); | |
1310 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1311 | #endif | |
1312 | PERL_ASYNC_CHECK(); | |
2e34cc90 | 1313 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
fe20fd30 | 1314 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2e34cc90 | 1315 | #endif |
23ada85b | 1316 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
fe20fd30 | 1317 | PL_sig_ignoring[i] = 0; |
85b332e2 | 1318 | #endif |
2e34cc90 | 1319 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
fe20fd30 | 1320 | PL_sig_defaulting[i] = 0; |
2e34cc90 | 1321 | #endif |
22c35a8c | 1322 | SvREFCNT_dec(PL_psig_name[i]); |
d2aaa77e | 1323 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1324 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1325 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1326 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1327 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1328 | } |
a0d0e21e | 1329 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
d2aaa77e | 1330 | if (i) { |
71b97453 | 1331 | (void)rsignal(i, PL_csighandlerp); |
d2aaa77e JH |
1332 | #ifdef HAS_SIGPROCMASK |
1333 | LEAVE; | |
1334 | #endif | |
1335 | } | |
748a9306 LW |
1336 | else |
1337 | *svp = SvREFCNT_inc(sv); | |
d2aaa77e JH |
1338 | if(to_dec) |
1339 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1340 | return 0; |
1341 | } | |
e72dc28c | 1342 | s = SvPV_force(sv,len); |
748a9306 | 1343 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1344 | if (i) { |
23ada85b | 1345 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
fe20fd30 | 1346 | PL_sig_ignoring[i] = 1; |
71b97453 | 1347 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1348 | #else |
ff68c719 | 1349 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1350 | #endif |
d2aaa77e | 1351 | } |
748a9306 LW |
1352 | } |
1353 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1354 | if (i) | |
2e34cc90 CL |
1355 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1356 | { | |
fe20fd30 | 1357 | PL_sig_defaulting[i] = 1; |
71b97453 | 1358 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1359 | } |
1360 | #else | |
ff68c719 | 1361 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1362 | #endif |
748a9306 | 1363 | } |
79072805 | 1364 | else { |
5aabfad6 | 1365 | /* |
1366 | * We should warn if HINT_STRICT_REFS, but without | |
1367 | * access to a known hint bit in a known OP, we can't | |
1368 | * tell whether HINT_STRICT_REFS is in force or not. | |
1369 | */ | |
46fc3d4c | 1370 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1371 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1372 | if (i) |
71b97453 | 1373 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1374 | else |
1375 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1376 | } |
d2aaa77e JH |
1377 | #ifdef HAS_SIGPROCMASK |
1378 | if(i) | |
1379 | LEAVE; | |
1380 | #endif | |
1381 | if(to_dec) | |
1382 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1383 | return 0; |
1384 | } | |
64ca3a65 | 1385 | #endif /* !PERL_MICRO */ |
79072805 LW |
1386 | |
1387 | int | |
864dbfa3 | 1388 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1389 | { |
4f1e9d25 AL |
1390 | PERL_UNUSED_ARG(sv); |
1391 | PERL_UNUSED_ARG(mg); | |
3280af22 | 1392 | PL_sub_generation++; |
463ee0b2 LW |
1393 | return 0; |
1394 | } | |
1395 | ||
1396 | int | |
864dbfa3 | 1397 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1398 | { |
4f1e9d25 AL |
1399 | PERL_UNUSED_ARG(sv); |
1400 | PERL_UNUSED_ARG(mg); | |
a0d0e21e | 1401 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1402 | PL_amagic_generation++; |
463ee0b2 | 1403 | |
a0d0e21e LW |
1404 | return 0; |
1405 | } | |
463ee0b2 | 1406 | |
946ec16e | 1407 | int |
864dbfa3 | 1408 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1409 | { |
0473add9 | 1410 | HV * const hv = (HV*)LvTARG(sv); |
6ff81951 | 1411 | I32 i = 0; |
4f1e9d25 | 1412 | PERL_UNUSED_ARG(mg); |
7719e241 | 1413 | |
6ff81951 | 1414 | if (hv) { |
497b47a8 JH |
1415 | (void) hv_iterinit(hv); |
1416 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1417 | i = HvKEYS(hv); | |
1418 | else { | |
1419 | while (hv_iternext(hv)) | |
1420 | i++; | |
1421 | } | |
6ff81951 GS |
1422 | } |
1423 | ||
1424 | sv_setiv(sv, (IV)i); | |
1425 | return 0; | |
1426 | } | |
1427 | ||
1428 | int | |
864dbfa3 | 1429 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1430 | { |
4f1e9d25 | 1431 | PERL_UNUSED_ARG(mg); |
946ec16e | 1432 | if (LvTARG(sv)) { |
1433 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1434 | } |
1435 | return 0; | |
ac27b0f5 | 1436 | } |
946ec16e | 1437 | |
e336de0d | 1438 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1439 | STATIC int |
c05e0e2f | 1440 | S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1441 | { |
1442 | dSP; | |
463ee0b2 | 1443 | |
924508f0 GS |
1444 | PUSHMARK(SP); |
1445 | EXTEND(SP, n); | |
33c27489 | 1446 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1447 | if (n > 1) { |
93965878 | 1448 | if (mg->mg_ptr) { |
565764a8 | 1449 | if (mg->mg_len >= 0) |
79cb57f6 | 1450 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1451 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1452 | PUSHs((SV*)mg->mg_ptr); |
1453 | } | |
14befaf4 | 1454 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1455 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1456 | } |
1457 | } | |
1458 | if (n > 2) { | |
1459 | PUSHs(val); | |
88e89b8a | 1460 | } |
463ee0b2 LW |
1461 | PUTBACK; |
1462 | ||
864dbfa3 | 1463 | return call_method(meth, flags); |
946ec16e | 1464 | } |
1465 | ||
76e3520e | 1466 | STATIC int |
c05e0e2f | 1467 | S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth) |
a0d0e21e LW |
1468 | { |
1469 | dSP; | |
463ee0b2 | 1470 | |
a0d0e21e LW |
1471 | ENTER; |
1472 | SAVETMPS; | |
e788e7d3 | 1473 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1474 | |
33c27489 | 1475 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1476 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1477 | } |
463ee0b2 | 1478 | |
d3acc0f7 | 1479 | POPSTACK; |
a0d0e21e LW |
1480 | FREETMPS; |
1481 | LEAVE; | |
1482 | return 0; | |
1483 | } | |
463ee0b2 | 1484 | |
a0d0e21e | 1485 | int |
864dbfa3 | 1486 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1487 | { |
a0d0e21e LW |
1488 | if (mg->mg_ptr) |
1489 | mg->mg_flags |= MGf_GSKIP; | |
90912255 | 1490 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1491 | return 0; |
1492 | } | |
1493 | ||
1494 | int | |
864dbfa3 | 1495 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1496 | { |
1497 | dSP; | |
a60c0954 | 1498 | ENTER; |
e788e7d3 | 1499 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1500 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1501 | POPSTACK; |
a60c0954 | 1502 | LEAVE; |
463ee0b2 LW |
1503 | return 0; |
1504 | } | |
1505 | ||
1506 | int | |
864dbfa3 | 1507 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1508 | { |
a0d0e21e LW |
1509 | return magic_methpack(sv,mg,"DELETE"); |
1510 | } | |
463ee0b2 | 1511 | |
93965878 NIS |
1512 | |
1513 | U32 | |
864dbfa3 | 1514 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1515 | { |
e336de0d | 1516 | dSP; |
93965878 NIS |
1517 | U32 retval = 0; |
1518 | ||
1519 | ENTER; | |
1520 | SAVETMPS; | |
e788e7d3 | 1521 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1522 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1523 | sv = *PL_stack_sp--; |
a60c0954 | 1524 | retval = (U32) SvIV(sv)-1; |
93965878 | 1525 | } |
d3acc0f7 | 1526 | POPSTACK; |
93965878 NIS |
1527 | FREETMPS; |
1528 | LEAVE; | |
1529 | return retval; | |
1530 | } | |
1531 | ||
cea2e8a9 GS |
1532 | int |
1533 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1534 | { |
1535 | dSP; | |
463ee0b2 | 1536 | |
e336de0d | 1537 | ENTER; |
e788e7d3 | 1538 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1539 | PUSHMARK(SP); |
33c27489 | 1540 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1541 | PUTBACK; |
864dbfa3 | 1542 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1543 | POPSTACK; |
a60c0954 | 1544 | LEAVE; |
59679316 | 1545 | |
463ee0b2 LW |
1546 | return 0; |
1547 | } | |
1548 | ||
1549 | int | |
864dbfa3 | 1550 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1551 | { |
463ee0b2 | 1552 | dSP; |
7120cae1 | 1553 | const char * const meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1554 | |
1555 | ENTER; | |
a0d0e21e | 1556 | SAVETMPS; |
e788e7d3 | 1557 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1558 | PUSHMARK(SP); |
1559 | EXTEND(SP, 2); | |
33c27489 | 1560 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1561 | if (SvOK(key)) |
1562 | PUSHs(key); | |
1563 | PUTBACK; | |
1564 | ||
864dbfa3 | 1565 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1566 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1567 | |
d3acc0f7 | 1568 | POPSTACK; |
a0d0e21e LW |
1569 | FREETMPS; |
1570 | LEAVE; | |
79072805 LW |
1571 | return 0; |
1572 | } | |
1573 | ||
1574 | int | |
864dbfa3 | 1575 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1576 | { |
1577 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1578 | } |
a0d0e21e | 1579 | |
59679316 TP |
1580 | SV * |
1581 | Perl_magic_scalarpack(pTHX_ HV *hv, MAGIC *mg) | |
1582 | { | |
1583 | dSP; | |
1584 | SV *retval = &PL_sv_undef; | |
4f1e9d25 AL |
1585 | SV * const tied = SvTIED_obj((SV*)hv, mg); |
1586 | HV * const pkg = SvSTASH((SV*)SvRV(tied)); | |
59679316 TP |
1587 | |
1588 | if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) { | |
1589 | SV *key; | |
26ab6a78 | 1590 | if (HvEITER_get(hv)) |
59679316 TP |
1591 | /* we are in an iteration so the hash cannot be empty */ |
1592 | return &PL_sv_yes; | |
1593 | /* no xhv_eiter so now use FIRSTKEY */ | |
1594 | key = sv_newmortal(); | |
1595 | magic_nextpack((SV*)hv, mg, key); | |
26ab6a78 | 1596 | HvEITER_set(hv, NULL); /* need to reset iterator */ |
59679316 TP |
1597 | return SvOK(key) ? &PL_sv_yes : &PL_sv_no; |
1598 | } | |
1599 | ||
1600 | /* there is a SCALAR method that we can call */ | |
1601 | ENTER; | |
1602 | PUSHSTACKi(PERLSI_MAGIC); | |
1603 | PUSHMARK(SP); | |
1604 | EXTEND(SP, 1); | |
1605 | PUSHs(tied); | |
1606 | PUTBACK; | |
1607 | ||
1608 | if (call_method("SCALAR", G_SCALAR)) | |
1609 | retval = *PL_stack_sp--; | |
1610 | POPSTACK; | |
1611 | LEAVE; | |
1612 | return retval; | |
1613 | } | |
1614 | ||
a0d0e21e | 1615 | int |
864dbfa3 | 1616 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1617 | { |
4f1e9d25 AL |
1618 | GV * const gv = PL_DBline; |
1619 | const I32 i = SvTRUE(sv); | |
1620 | SV ** const svp = av_fetch(GvAV(gv), | |
db1c9db1 | 1621 | atoi(MgPV_nolen_const(mg)), FALSE); |
4f1e9d25 AL |
1622 | if (svp && SvIOKp(*svp)) { |
1623 | OP * const o = INT2PTR(OP*,SvIVX(*svp)); | |
1624 | if (o) { | |
1625 | /* set or clear breakpoint in the relevant control op */ | |
1626 | if (i) | |
1627 | o->op_flags |= OPf_SPECIAL; | |
1628 | else | |
1629 | o->op_flags &= ~OPf_SPECIAL; | |
1630 | } | |
aeb5de76 | 1631 | } |
79072805 LW |
1632 | return 0; |
1633 | } | |
1634 | ||
1635 | int | |
864dbfa3 | 1636 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1637 | { |
1c005abe NC |
1638 | AV *obj = (AV*)mg->mg_obj; |
1639 | if (obj) { | |
1640 | sv_setiv(sv, AvFILL(obj) + PL_curcop->cop_arybase); | |
1641 | } else { | |
1642 | SvOK_off(sv); | |
1643 | } | |
79072805 LW |
1644 | return 0; |
1645 | } | |
1646 | ||
1647 | int | |
864dbfa3 | 1648 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1649 | { |
1c005abe NC |
1650 | AV *obj = (AV*)mg->mg_obj; |
1651 | if (obj) { | |
1652 | av_fill(obj, SvIV(sv) - PL_curcop->cop_arybase); | |
1653 | } else { | |
1654 | if (ckWARN(WARN_MISC)) | |
1655 | Perl_warner(aTHX_ packWARN(WARN_MISC), | |
1656 | "Attempt to set length of freed array"); | |
1657 | } | |
a0d0e21e LW |
1658 | return 0; |
1659 | } | |
1660 | ||
1661 | int | |
864dbfa3 | 1662 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1663 | { |
4f1e9d25 | 1664 | SV* const lsv = LvTARG(sv); |
ac27b0f5 | 1665 | |
a0d0e21e | 1666 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1667 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1668 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1669 | I32 i = mg->mg_len; |
7e2040f0 | 1670 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1671 | sv_pos_b2u(lsv, &i); |
1672 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1673 | return 0; |
1674 | } | |
1675 | } | |
7460c263 | 1676 | SvOK_off(sv); |
a0d0e21e LW |
1677 | return 0; |
1678 | } | |
1679 | ||
1680 | int | |
864dbfa3 | 1681 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1682 | { |
4f1e9d25 | 1683 | SV* const lsv = LvTARG(sv); |
a0d0e21e LW |
1684 | SSize_t pos; |
1685 | STRLEN len; | |
c00206c8 | 1686 | STRLEN ulen = 0; |
a0d0e21e LW |
1687 | |
1688 | mg = 0; | |
ac27b0f5 | 1689 | |
a0d0e21e | 1690 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1691 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1692 | if (!mg) { |
1693 | if (!SvOK(sv)) | |
1694 | return 0; | |
14befaf4 DM |
1695 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1696 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1697 | } |
1698 | else if (!SvOK(sv)) { | |
565764a8 | 1699 | mg->mg_len = -1; |
a0d0e21e LW |
1700 | return 0; |
1701 | } | |
1702 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1703 | ||
c485e607 | 1704 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1705 | |
7e2040f0 | 1706 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1707 | ulen = sv_len_utf8(lsv); |
1708 | if (ulen) | |
1709 | len = ulen; | |
a0ed51b3 LW |
1710 | } |
1711 | ||
a0d0e21e LW |
1712 | if (pos < 0) { |
1713 | pos += len; | |
1714 | if (pos < 0) | |
1715 | pos = 0; | |
1716 | } | |
eb160463 | 1717 | else if (pos > (SSize_t)len) |
a0d0e21e | 1718 | pos = len; |
a0ed51b3 LW |
1719 | |
1720 | if (ulen) { | |
1721 | I32 p = pos; | |
1722 | sv_pos_u2b(lsv, &p, 0); | |
1723 | pos = p; | |
1724 | } | |
727405f8 | 1725 | |
565764a8 | 1726 | mg->mg_len = pos; |
71be2cbc | 1727 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1728 | |
79072805 LW |
1729 | return 0; |
1730 | } | |
1731 | ||
1732 | int | |
864dbfa3 | 1733 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1734 | { |
4f1e9d25 | 1735 | PERL_UNUSED_ARG(mg); |
8646b087 | 1736 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1737 | SvFAKE_off(sv); | |
946ec16e | 1738 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1739 | SvFAKE_on(sv); |
1740 | } | |
1741 | else | |
946ec16e | 1742 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1743 | return 0; |
1744 | } | |
1745 | ||
1746 | int | |
864dbfa3 | 1747 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1748 | { |
1749 | register char *s; | |
1750 | GV* gv; | |
2d8e6c8d | 1751 | STRLEN n_a; |
4f1e9d25 | 1752 | PERL_UNUSED_ARG(mg); |
79072805 LW |
1753 | |
1754 | if (!SvOK(sv)) | |
1755 | return 0; | |
2d8e6c8d | 1756 | s = SvPV(sv, n_a); |
79072805 LW |
1757 | if (*s == '*' && s[1]) |
1758 | s++; | |
85e6fe83 | 1759 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1760 | if (sv == (SV*)gv) |
1761 | return 0; | |
1762 | if (GvGP(sv)) | |
88e89b8a | 1763 | gp_free((GV*)sv); |
79072805 | 1764 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1765 | return 0; |
1766 | } | |
1767 | ||
1768 | int | |
864dbfa3 | 1769 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1770 | { |
1771 | STRLEN len; | |
7120cae1 | 1772 | SV * const lsv = LvTARG(sv); |
23c2bb70 | 1773 | const char * const tmps = SvPV_const(lsv,len); |
6ff81951 GS |
1774 | I32 offs = LvTARGOFF(sv); |
1775 | I32 rem = LvTARGLEN(sv); | |
4f1e9d25 | 1776 | PERL_UNUSED_ARG(mg); |
6ff81951 | 1777 | |
9aa983d2 JH |
1778 | if (SvUTF8(lsv)) |
1779 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1780 | if (offs > (I32)len) |
6ff81951 | 1781 | offs = len; |
eb160463 | 1782 | if (rem + offs > (I32)len) |
6ff81951 GS |
1783 | rem = len - offs; |
1784 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1785 | if (SvUTF8(lsv)) |
2ef4b674 | 1786 | SvUTF8_on(sv); |
6ff81951 GS |
1787 | return 0; |
1788 | } | |
1789 | ||
1790 | int | |
864dbfa3 | 1791 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1792 | { |
9aa983d2 | 1793 | STRLEN len; |
23c2bb70 | 1794 | const char *tmps = SvPV_const(sv, len); |
0473add9 | 1795 | SV * const lsv = LvTARG(sv); |
9aa983d2 JH |
1796 | I32 lvoff = LvTARGOFF(sv); |
1797 | I32 lvlen = LvTARGLEN(sv); | |
4f1e9d25 | 1798 | PERL_UNUSED_ARG(mg); |
075a4a2b | 1799 | |
1aa99e6b | 1800 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1801 | sv_utf8_upgrade(lsv); |
1802 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
f8b14789 | 1803 | sv_insert(lsv, lvoff, lvlen, (char *)tmps, len); |
9aa983d2 JH |
1804 | SvUTF8_on(lsv); |
1805 | } | |
9bf12eaf | 1806 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1807 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1808 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
f8b14789 | 1809 | sv_insert(lsv, lvoff, lvlen, (char *)tmps, len); |
9aa983d2 | 1810 | Safefree(tmps); |
1aa99e6b IH |
1811 | } |
1812 | else | |
f8b14789 | 1813 | sv_insert(lsv, lvoff, lvlen, (char *)tmps, len); |
1aa99e6b | 1814 | |
79072805 LW |
1815 | return 0; |
1816 | } | |
1817 | ||
1818 | int | |
864dbfa3 | 1819 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1820 | { |
4f1e9d25 | 1821 | PERL_UNUSED_ARG(sv); |
565764a8 | 1822 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1823 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1824 | return 0; |
1825 | } | |
1826 | ||
1827 | int | |
864dbfa3 | 1828 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1829 | { |
4f1e9d25 | 1830 | PERL_UNUSED_ARG(sv); |
3280af22 NIS |
1831 | if (PL_localizing) { |
1832 | if (PL_localizing == 1) | |
565764a8 | 1833 | mg->mg_len <<= 1; |
748a9306 | 1834 | else |
565764a8 | 1835 | mg->mg_len >>= 1; |
a0d0e21e | 1836 | } |
3280af22 | 1837 | else if (PL_tainted) |
565764a8 | 1838 | mg->mg_len |= 1; |
748a9306 | 1839 | else |
565764a8 | 1840 | mg->mg_len &= ~1; |
463ee0b2 LW |
1841 | return 0; |
1842 | } | |
1843 | ||
1844 | int | |
864dbfa3 | 1845 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1846 | { |
7120cae1 | 1847 | SV * const lsv = LvTARG(sv); |
4f1e9d25 | 1848 | PERL_UNUSED_ARG(mg); |
6ff81951 GS |
1849 | |
1850 | if (!lsv) { | |
7460c263 | 1851 | SvOK_off(sv); |
6ff81951 GS |
1852 | return 0; |
1853 | } | |
6ff81951 | 1854 | |
81e118e0 | 1855 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1856 | return 0; |
1857 | } | |
1858 | ||
1859 | int | |
864dbfa3 | 1860 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1861 | { |
4f1e9d25 | 1862 | PERL_UNUSED_ARG(mg); |
79072805 LW |
1863 | do_vecset(sv); /* XXX slurp this routine */ |
1864 | return 0; | |
1865 | } | |
1866 | ||
1867 | int | |
864dbfa3 | 1868 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1869 | { |
71be2cbc | 1870 | SV *targ = Nullsv; |
5f05dabc | 1871 | if (LvTARGLEN(sv)) { |
68dc0745 | 1872 | if (mg->mg_obj) { |
4f1e9d25 | 1873 | SV * const ahv = LvTARG(sv); |
74e13ce4 | 1874 | if (SvTYPE(ahv) == SVt_PVHV) { |
4f1e9d25 | 1875 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
74e13ce4 GS |
1876 | if (he) |
1877 | targ = HeVAL(he); | |
1878 | } | |
1879 | else { | |
1880 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1881 | if (svp) | |
1882 | targ = *svp; | |
1883 | } | |
68dc0745 | 1884 | } |
1885 | else { | |
4f1e9d25 | 1886 | AV* const av = (AV*)LvTARG(sv); |
68dc0745 | 1887 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1888 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1889 | } | |
3280af22 | 1890 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1891 | /* somebody else defined it for us */ |
1892 | SvREFCNT_dec(LvTARG(sv)); | |
1893 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1894 | LvTARGLEN(sv) = 0; | |
1895 | SvREFCNT_dec(mg->mg_obj); | |
1896 | mg->mg_obj = Nullsv; | |
1897 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1898 | } | |
5f05dabc | 1899 | } |
71be2cbc | 1900 | else |
1901 | targ = LvTARG(sv); | |
3280af22 | 1902 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1903 | return 0; |
1904 | } | |
1905 | ||
1906 | int | |
864dbfa3 | 1907 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1908 | { |
4f1e9d25 | 1909 | PERL_UNUSED_ARG(mg); |
71be2cbc | 1910 | if (LvTARGLEN(sv)) |
68dc0745 | 1911 | vivify_defelem(sv); |
1912 | if (LvTARG(sv)) { | |
5f05dabc | 1913 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1914 | SvSETMAGIC(LvTARG(sv)); |
1915 | } | |
5f05dabc | 1916 | return 0; |
1917 | } | |
1918 | ||
71be2cbc | 1919 | void |
864dbfa3 | 1920 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1921 | { |
74e13ce4 GS |
1922 | MAGIC *mg; |
1923 | SV *value = Nullsv; | |
71be2cbc | 1924 | |
14befaf4 | 1925 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1926 | return; |
68dc0745 | 1927 | if (mg->mg_obj) { |
4f1e9d25 | 1928 | SV * const ahv = LvTARG(sv); |
74e13ce4 | 1929 | if (SvTYPE(ahv) == SVt_PVHV) { |
4f1e9d25 | 1930 | HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1931 | if (he) |
1932 | value = HeVAL(he); | |
1933 | } | |
1934 | else { | |
af7f9c15 | 1935 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1936 | if (svp) |
1937 | value = *svp; | |
1938 | } | |
3280af22 | 1939 | if (!value || value == &PL_sv_undef) |
6b53674b | 1940 | Perl_croak(aTHX_ PL_no_helem_sv, mg->mg_obj); |
71be2cbc | 1941 | } |
68dc0745 | 1942 | else { |
4f1e9d25 | 1943 | AV* const av = (AV*)LvTARG(sv); |
5aabfad6 | 1944 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1945 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1946 | else { | |
c9dc1ff4 | 1947 | SV** const svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 | 1948 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1949 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1950 | } |
1951 | } | |
3e3baf6d | 1952 | (void)SvREFCNT_inc(value); |
68dc0745 | 1953 | SvREFCNT_dec(LvTARG(sv)); |
1954 | LvTARG(sv) = value; | |
71be2cbc | 1955 | LvTARGLEN(sv) = 0; |
68dc0745 | 1956 | SvREFCNT_dec(mg->mg_obj); |
1957 | mg->mg_obj = Nullsv; | |
1958 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1959 | } |
1960 | ||
1961 | int | |
864dbfa3 | 1962 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 | 1963 | { |
4f1e9d25 AL |
1964 | AV * const av = (AV*)mg->mg_obj; |
1965 | SV ** const svp = AvARRAY(av); | |
810b8aa5 | 1966 | I32 i = AvFILLp(av); |
4f1e9d25 | 1967 | PERL_UNUSED_ARG(sv); |
0473add9 | 1968 | |
810b8aa5 | 1969 | while (i >= 0) { |
fdc9a813 | 1970 | if (svp[i]) { |
810b8aa5 | 1971 | if (!SvWEAKREF(svp[i])) |
fc64cf4d NC |
1972 | Perl_croak(aTHX_ "panic: magic_killbackrefs (flags=%"UVxf")", |
1973 | (UV)SvFLAGS(svp[i])); | |
810b8aa5 | 1974 | /* XXX Should we check that it hasn't changed? */ |
a8dc4fe8 | 1975 | SvRV_set(svp[i], 0); |
7460c263 | 1976 | SvOK_off(svp[i]); |
810b8aa5 | 1977 | SvWEAKREF_off(svp[i]); |
fdc9a813 | 1978 | svp[i] = Nullsv; |
810b8aa5 GS |
1979 | } |
1980 | i--; | |
1981 | } | |
219ef941 | 1982 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
1983 | return 0; |
1984 | } | |
1985 | ||
1986 | int | |
864dbfa3 | 1987 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1988 | { |
565764a8 | 1989 | mg->mg_len = -1; |
c6496cc7 | 1990 | SvSCREAM_off(sv); |
93a17b20 LW |
1991 | return 0; |
1992 | } | |
1993 | ||
1994 | int | |
864dbfa3 | 1995 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1996 | { |
4f1e9d25 | 1997 | PERL_UNUSED_ARG(mg); |
14befaf4 | 1998 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1999 | SvVALID_off(sv); |
2000 | return 0; | |
2001 | } | |
2002 | ||
2003 | int | |
864dbfa3 | 2004 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 2005 | { |
4f1e9d25 | 2006 | PERL_UNUSED_ARG(mg); |
14befaf4 | 2007 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 2008 | SvCOMPILED_off(sv); |
2009 | return 0; | |
2010 | } | |
2011 | ||
2012 | int | |
864dbfa3 | 2013 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2014 | { |
7120cae1 | 2015 | const struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
2016 | |
2017 | if (uf && uf->uf_set) | |
24f81a43 | 2018 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
2019 | return 0; |
2020 | } | |
2021 | ||
c277df42 | 2022 | int |
5835a535 JH |
2023 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
2024 | { | |
4f1e9d25 | 2025 | PERL_UNUSED_ARG(mg); |
5835a535 JH |
2026 | sv_unmagic(sv, PERL_MAGIC_qr); |
2027 | return 0; | |
2028 | } | |
2029 | ||
2030 | int | |
864dbfa3 | 2031 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 | 2032 | { |
4f1e9d25 AL |
2033 | regexp * const re = (regexp *)mg->mg_obj; |
2034 | PERL_UNUSED_ARG(sv); | |
2035 | ||
c277df42 IZ |
2036 | ReREFCNT_dec(re); |
2037 | return 0; | |
2038 | } | |
2039 | ||
7a4c00b4 | 2040 | #ifdef USE_LOCALE_COLLATE |
79072805 | 2041 | int |
864dbfa3 | 2042 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 2043 | { |
2044 | /* | |
838b5b74 | 2045 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 2046 | * and vanished with a faint plop. |
2047 | */ | |
4f1e9d25 | 2048 | PERL_UNUSED_ARG(sv); |
7a4c00b4 | 2049 | if (mg->mg_ptr) { |
2050 | Safefree(mg->mg_ptr); | |
2051 | mg->mg_ptr = NULL; | |
565764a8 | 2052 | mg->mg_len = -1; |
7a4c00b4 | 2053 | } |
bbce6d69 | 2054 | return 0; |
2055 | } | |
7a4c00b4 | 2056 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 2057 | |
323eb6b5 JH |
2058 | /* Just clear the UTF-8 cache data. */ |
2059 | int | |
2060 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
2061 | { | |
4f1e9d25 | 2062 | PERL_UNUSED_ARG(sv); |
323eb6b5 JH |
2063 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
2064 | mg->mg_ptr = 0; | |
2065 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
2066 | return 0; | |
2067 | } | |
2068 | ||
bbce6d69 | 2069 | int |
864dbfa3 | 2070 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2071 | { |
c05e0e2f | 2072 | register const char *s; |
79072805 | 2073 | I32 i; |
8990e307 | 2074 | STRLEN len; |
79072805 | 2075 | switch (*mg->mg_ptr) { |
748a9306 | 2076 | case '\001': /* ^A */ |
3280af22 | 2077 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 2078 | break; |
49460fe6 | 2079 | case '\003': /* ^C */ |
eb160463 | 2080 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
2081 | break; |
2082 | ||
79072805 | 2083 | case '\004': /* ^D */ |
1aa6899f | 2084 | #ifdef DEBUGGING |
23c2bb70 | 2085 | s = SvPV_nolen_const(sv); |
d6c6363e | 2086 | PL_debug = get_debug_opts_flags((char **)&s, 0) | DEBUG_TOP_FLAG; |
79072805 | 2087 | DEBUG_x(dump_all()); |
1aa6899f JH |
2088 | #else |
2089 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
2090 | #endif | |
79072805 | 2091 | break; |
28f23441 | 2092 | case '\005': /* ^E */ |
5b7ea690 | 2093 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2094 | #ifdef MACOS_TRADITIONAL |
5b7ea690 | 2095 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2096 | #else |
cd39f2b6 | 2097 | # ifdef VMS |
5b7ea690 | 2098 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2099 | # else |
cd39f2b6 | 2100 | # ifdef WIN32 |
5b7ea690 | 2101 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2102 | # else |
9fed8b87 | 2103 | # ifdef OS2 |
5b7ea690 | 2104 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2105 | # else |
5b7ea690 JH |
2106 | /* will anyone ever use this? */ |
2107 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2108 | # endif |
048c1ddf IZ |
2109 | # endif |
2110 | # endif | |
22fae026 | 2111 | #endif |
5b7ea690 JH |
2112 | } |
2113 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2114 | if (PL_encoding) | |
2115 | SvREFCNT_dec(PL_encoding); | |
2116 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2117 | PL_encoding = newSVsv(sv); | |
2118 | } | |
2119 | else { | |
2120 | PL_encoding = Nullsv; | |
2121 | } | |
2122 | } | |
2123 | break; | |
79072805 | 2124 | case '\006': /* ^F */ |
3280af22 | 2125 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2126 | break; |
a0d0e21e | 2127 | case '\010': /* ^H */ |
3280af22 | 2128 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2129 | break; |
9d116dd7 | 2130 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
4c58c75a NC |
2131 | Safefree(PL_inplace); |
2132 | PL_inplace = SvOK(sv) ? savesvpv(sv) : Nullch; | |
79072805 | 2133 | break; |
28f23441 | 2134 | case '\017': /* ^O */ |
ac27b0f5 | 2135 | if (*(mg->mg_ptr+1) == '\0') { |
4c58c75a NC |
2136 | Safefree(PL_osname); |
2137 | PL_osname = Nullch; | |
908fffd2 NC |
2138 | if (SvOK(sv)) { |
2139 | TAINT_PROPER("assigning to $^O"); | |
04851bb3 | 2140 | PL_osname = savesvpv(sv); |
908fffd2 | 2141 | } |
ac27b0f5 NIS |
2142 | } |
2143 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2144 | if (!PL_compiling.cop_io) | |
2145 | PL_compiling.cop_io = newSVsv(sv); | |
2146 | else | |
2147 | sv_setsv(PL_compiling.cop_io,sv); | |
2148 | } | |
28f23441 | 2149 | break; |
79072805 | 2150 | case '\020': /* ^P */ |
3280af22 | 2151 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
9648d1c1 | 2152 | if (PL_perldb && !PL_DBsingle) |
1ee4443e | 2153 | init_debugger(); |
79072805 LW |
2154 | break; |
2155 | case '\024': /* ^T */ | |
88e89b8a | 2156 | #ifdef BIG_TIME |
6b88bc9c | 2157 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2158 | #else |
3280af22 | 2159 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2160 | #endif |
79072805 | 2161 | break; |
6563884d | 2162 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2163 | if (*(mg->mg_ptr+1) == '\0') { |
2164 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2165 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2166 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2167 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2168 | } |
599cee73 | 2169 | } |
0a378802 | 2170 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2171 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2172 | if (!SvPOK(sv) && PL_localizing) { |
2173 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2174 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2175 | break; |
2176 | } | |
f4fc7782 | 2177 | { |
b5477537 | 2178 | STRLEN len, i; |
d3a7d8c7 | 2179 | int accumulate = 0 ; |
f4fc7782 | 2180 | int any_fatals = 0 ; |
23c2bb70 | 2181 | const char * const ptr = SvPV_const(sv, len) ; |
f4fc7782 JH |
2182 | for (i = 0 ; i < len ; ++i) { |
2183 | accumulate |= ptr[i] ; | |
2184 | any_fatals |= (ptr[i] & 0xAA) ; | |
2185 | } | |
d3a7d8c7 GS |
2186 | if (!accumulate) |
2187 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2188 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2189 | PL_compiling.cop_warnings = pWARN_ALL; | |
2190 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2191 | } |
d3a7d8c7 GS |
2192 | else { |
2193 | if (specialWARN(PL_compiling.cop_warnings)) | |
2194 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2195 | else | |
2196 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2197 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2198 | PL_dowarn |= G_WARN_ONCE ; | |
2199 | } | |
f4fc7782 | 2200 | |
d3a7d8c7 | 2201 | } |
4438c4b7 | 2202 | } |
971a9dd3 | 2203 | } |
79072805 LW |
2204 | break; |
2205 | case '.': | |
3280af22 NIS |
2206 | if (PL_localizing) { |
2207 | if (PL_localizing == 1) | |
7766f137 | 2208 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2209 | } |
3280af22 | 2210 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2211 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2212 | break; |
2213 | case '^': | |
3280af22 | 2214 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
c05e0e2f | 2215 | s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
3280af22 | 2216 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2217 | break; |
2218 | case '~': | |
3280af22 | 2219 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
c05e0e2f | 2220 | s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
3280af22 | 2221 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2222 | break; |
2223 | case '=': | |
632db599 | 2224 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2225 | break; |
2226 | case '-': | |
632db599 | 2227 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2228 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2229 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2230 | break; |
2231 | case '%': | |
632db599 | 2232 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2233 | break; |
2234 | case '|': | |
4b65379b | 2235 | { |
4f1e9d25 | 2236 | IO * const io = GvIOp(PL_defoutgv); |
720f287d AB |
2237 | if(!io) |
2238 | break; | |
4b65379b CS |
2239 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2240 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2241 | else { | |
2242 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2243 | PerlIO *ofp = IoOFP(io); | |
2244 | if (ofp) | |
2245 | (void)PerlIO_flush(ofp); | |
2246 | IoFLAGS(io) |= IOf_FLUSH; | |
2247 | } | |
2248 | } | |
79072805 LW |
2249 | } |
2250 | break; | |
2251 | case '*': | |
463ee0b2 | 2252 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 2253 | PL_multiline = (i != 0); |
79072805 LW |
2254 | break; |
2255 | case '/': | |
3280af22 | 2256 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2257 | PL_rs = newSVsv(sv); |
79072805 LW |
2258 | break; |
2259 | case '\\': | |
7889fe52 NIS |
2260 | if (PL_ors_sv) |
2261 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2262 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2263 | PL_ors_sv = newSVsv(sv); |
009c130f | 2264 | } |
e3c19b7b | 2265 | else { |
7889fe52 | 2266 | PL_ors_sv = Nullsv; |
e3c19b7b | 2267 | } |
79072805 LW |
2268 | break; |
2269 | case ',': | |
7889fe52 NIS |
2270 | if (PL_ofs_sv) |
2271 | SvREFCNT_dec(PL_ofs_sv); | |
2272 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2273 | PL_ofs_sv = newSVsv(sv); | |
2274 | } | |
2275 | else { | |
2276 | PL_ofs_sv = Nullsv; | |
2277 | } | |
79072805 LW |
2278 | break; |
2279 | case '#': | |
3280af22 NIS |
2280 | if (PL_ofmt) |
2281 | Safefree(PL_ofmt); | |
04851bb3 | 2282 | PL_ofmt = savesvpv(sv); |
79072805 LW |
2283 | break; |
2284 | case '[': | |
3280af22 | 2285 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2286 | break; |
2287 | case '?': | |
ff0cee69 | 2288 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2289 | if (PL_localizing == 2) { |
2290 | PL_statusvalue = LvTARGOFF(sv); | |
2291 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2292 | } |
2293 | else | |
2294 | #endif | |
2295 | #ifdef VMSISH_STATUS | |
2296 | if (VMSISH_STATUS) | |
2297 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2298 | else | |
2299 | #endif | |
2300 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2301 | break; |
2302 | case '!': | |
5b7ea690 JH |
2303 | { |
2304 | #ifdef VMS | |
2305 | # define PERL_VMS_BANG vaxc$errno | |
2306 | #else | |
2307 | # define PERL_VMS_BANG 0 | |
2308 | #endif | |
91487cfc | 2309 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
5b7ea690 JH |
2310 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2311 | } | |
79072805 LW |
2312 | break; |
2313 | case '<': | |
3280af22 NIS |
2314 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2315 | if (PL_delaymagic) { | |
2316 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2317 | break; /* don't do magic till later */ |
2318 | } | |
2319 | #ifdef HAS_SETRUID | |
b28d0864 | 2320 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2321 | #else |
2322 | #ifdef HAS_SETREUID | |
3280af22 | 2323 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2324 | #else |
85e6fe83 | 2325 | #ifdef HAS_SETRESUID |
b28d0864 | 2326 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2327 | #else |
275984d7 NC |
2328 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2329 | #ifdef PERL_DARWIN | |
2330 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2331 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2332 | (void)PerlProc_setuid(0); | |
2333 | #endif | |
b28d0864 | 2334 | (void)PerlProc_setuid(PL_uid); |
275984d7 | 2335 | } else { |
d8eceb89 | 2336 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2337 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2338 | } |
79072805 LW |
2339 | #endif |
2340 | #endif | |
85e6fe83 | 2341 | #endif |
d8eceb89 | 2342 | PL_uid = PerlProc_getuid(); |
3280af22 | 2343 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2344 | break; |
2345 | case '>': | |
3280af22 NIS |
2346 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2347 | if (PL_delaymagic) { | |
2348 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2349 | break; /* don't do magic till later */ |
2350 | } | |
2351 | #ifdef HAS_SETEUID | |
3280af22 | 2352 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2353 | #else |
2354 | #ifdef HAS_SETREUID | |
b28d0864 | 2355 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2356 | #else |
2357 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2358 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2359 | #else |
b28d0864 NIS |
2360 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2361 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2362 | else { |
e8ee3774 | 2363 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2364 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2365 | } |
79072805 LW |
2366 | #endif |
2367 | #endif | |
85e6fe83 | 2368 | #endif |
d8eceb89 | 2369 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2370 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2371 | break; |
2372 | case '(': | |
3280af22 NIS |
2373 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2374 | if (PL_delaymagic) { | |
2375 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2376 | break; /* don't do magic till later */ |
2377 | } | |
2378 | #ifdef HAS_SETRGID | |
b28d0864 | 2379 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2380 | #else |
2381 | #ifdef HAS_SETREGID | |
3280af22 | 2382 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2383 | #else |
2384 | #ifdef HAS_SETRESGID | |
b28d0864 | 2385 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2386 | #else |
b28d0864 NIS |
2387 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2388 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2389 | else { |
d8eceb89 | 2390 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2391 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2392 | } |
79072805 LW |
2393 | #endif |
2394 | #endif | |
85e6fe83 | 2395 | #endif |
d8eceb89 | 2396 | PL_gid = PerlProc_getgid(); |
3280af22 | 2397 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2398 | break; |
2399 | case ')': | |
5cd24f17 | 2400 | #ifdef HAS_SETGROUPS |
2401 | { | |
23c2bb70 | 2402 | const char *p = SvPV_const(sv, len); |
5cd24f17 | 2403 | Groups_t gary[NGROUPS]; |
2404 | ||
5cd24f17 | 2405 | while (isSPACE(*p)) |
2406 | ++p; | |
2d4389e4 | 2407 | PL_egid = Atol(p); |
5cd24f17 | 2408 | for (i = 0; i < NGROUPS; ++i) { |
2409 | while (*p && !isSPACE(*p)) | |
2410 | ++p; | |
2411 | while (isSPACE(*p)) | |
2412 | ++p; | |
2413 | if (!*p) | |
2414 | break; | |
2d4389e4 | 2415 | gary[i] = Atol(p); |
5cd24f17 | 2416 | } |
8cc95fdb | 2417 | if (i) |
2418 | (void)setgroups(i, gary); | |
5cd24f17 | 2419 | } |
2420 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2421 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2422 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2423 | if (PL_delaymagic) { |
2424 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2425 | break; /* don't do magic till later */ |
2426 | } | |
2427 | #ifdef HAS_SETEGID | |
3280af22 | 2428 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2429 | #else |
2430 | #ifdef HAS_SETREGID | |
b28d0864 | 2431 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2432 | #else |
2433 | #ifdef HAS_SETRESGID | |
b28d0864 | 2434 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2435 | #else |
b28d0864 NIS |
2436 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2437 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2438 | else { |
d8eceb89 | 2439 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2440 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2441 | } |
79072805 LW |
2442 | #endif |
2443 | #endif | |
85e6fe83 | 2444 | #endif |
d8eceb89 | 2445 | PL_egid = PerlProc_getegid(); |
3280af22 | 2446 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2447 | break; |
2448 | case ':': | |
2d8e6c8d | 2449 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2450 | break; |
cd39f2b6 | 2451 | #ifndef MACOS_TRADITIONAL |
79072805 | 2452 | case '0': |
7223e9d8 | 2453 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2454 | #ifdef HAS_SETPROCTITLE |
2455 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2456 | * show a string from the process struct and provide | |
2457 | * the setproctitle() routine to manipulate that. */ | |
2458 | { | |
23c2bb70 | 2459 | s = SvPV_const(sv, len); |
98b76f99 | 2460 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2461 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2462 | * but not the "(perl) suffix from the ps(1) |
2463 | * output, because that's what ps(1) shows if the | |
2464 | * argv[] is modified. */ | |
6f2ad931 | 2465 | setproctitle("-%s", s); |
9aad2c0e | 2466 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2467 | /* This doesn't really work if you assume that |
2468 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2469 | * because in ps(1) output the result will be like | |
2470 | * sprintf("perl: %s (perl)", s) | |
2471 | * I guess this is a security feature: | |
2472 | * one (a user process) cannot get rid of the original name. | |
2473 | * --jhi */ | |
2474 | setproctitle("%s", s); | |
2475 | # endif | |
2476 | } | |
2477 | #endif | |
7223e9d8 JH |
2478 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2479 | { | |
2480 | union pstun un; | |
23c2bb70 | 2481 | s = SvPV_const(sv, len); |
c501bbfe | 2482 | un.pst_command = (char *)s; |
7223e9d8 JH |
2483 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2484 | } | |
2485 | #endif | |
1aa6899f | 2486 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2487 | s = SvPV_force(sv,len); |
93f3c3fe | 2488 | if (len >= (STRLEN)PL_origalen) { |
1aa6899f JH |
2489 | /* Longer than original, will be truncated. */ |
2490 | Copy(s, PL_origargv[0], PL_origalen, char); | |
2491 | PL_origargv[0][PL_origalen - 1] = 0; | |
79072805 LW |
2492 | } |
2493 | else { | |
1aa6899f JH |
2494 | /* Shorter than original, will be padded. */ |
2495 | Copy(s, PL_origargv[0], len, char); | |
2496 | PL_origargv[0][len] = 0; | |
2497 | memset(PL_origargv[0] + len + 1, | |
2498 | /* Is the space counterintuitive? Yes. | |
2499 | * (You were expecting \0?) | |
2500 | * Does it work? Seems to. (In Linux 2.4.20 at least.) | |
2501 | * --jhi */ | |
2502 | (int)' ', | |
2503 | PL_origalen - len - 1); | |
3280af22 | 2504 | for (i = 1; i < PL_origargc; i++) |
1aa6899f | 2505 | PL_origargv[i] = 0; |
79072805 | 2506 | } |
7223e9d8 | 2507 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2508 | break; |
cd39f2b6 | 2509 | #endif |
4d1ff10f | 2510 | #ifdef USE_5005THREADS |
a863c7d1 | 2511 | case '@': |
38a03e6e | 2512 | sv_setsv(thr->errsv, sv); |
a863c7d1 | 2513 | break; |
4d1ff10f | 2514 | #endif /* USE_5005THREADS */ |
79072805 LW |
2515 | } |
2516 | return 0; | |
2517 | } | |
2518 | ||
4d1ff10f | 2519 | #ifdef USE_5005THREADS |
f93b4edd | 2520 | int |
864dbfa3 | 2521 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2522 | { |
b900a521 JH |
2523 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2524 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
a674cc95 | 2525 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd | 2526 | if (MgOWNER(mg)) |
cea2e8a9 | 2527 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2528 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2529 | COND_DESTROY(MgCONDP(mg)); | |
2530 | return 0; | |
2531 | } | |
4d1ff10f | 2532 | #endif /* USE_5005THREADS */ |
f93b4edd | 2533 | |
79072805 | 2534 | I32 |
864dbfa3 | 2535 | Perl_whichsig(pTHX_ char *sig) |
79072805 | 2536 | { |
fe20fd30 | 2537 | register const char * const *sigv; |
79072805 | 2538 | |
582e5fa1 | 2539 | for (sigv = PL_sig_name; *sigv; sigv++) |
79072805 | 2540 | if (strEQ(sig,*sigv)) |
22c35a8c | 2541 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2542 | #ifdef SIGCLD |
2543 | if (strEQ(sig,"CHLD")) | |
2544 | return SIGCLD; | |
2545 | #endif | |
2546 | #ifdef SIGCHLD | |
2547 | if (strEQ(sig,"CLD")) | |
2548 | return SIGCHLD; | |
2549 | #endif | |
0d22ce0f | 2550 | return -1; |
79072805 LW |
2551 | } |
2552 | ||
df3728a2 | 2553 | #if !defined(PERL_IMPLICIT_CONTEXT) |
fe20fd30 | 2554 | static SV* PL_sig_sv; |
df3728a2 | 2555 | #endif |
84902520 | 2556 | |
ecfc5424 | 2557 | Signal_t |
cea2e8a9 | 2558 | Perl_sighandler(int sig) |
79072805 | 2559 | { |
1018e26f NIS |
2560 | #ifdef PERL_GET_SIG_CONTEXT |
2561 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2562 | #else |
cea2e8a9 | 2563 | dTHX; |
71d280e3 | 2564 | #endif |
79072805 | 2565 | dSP; |
00d579c5 | 2566 | GV *gv = Nullgv; |
4f1e9d25 AL |
2567 | SV *sv = Nullsv; |
2568 | SV * const tSv = PL_Sv; | |
00d579c5 | 2569 | CV *cv = Nullcv; |
533c011a | 2570 | OP *myop = PL_op; |
84902520 | 2571 | U32 flags = 0; |
4f1e9d25 | 2572 | XPV * const tXpv = PL_Xpv; |
71d280e3 | 2573 | |
3280af22 | 2574 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2575 | flags |= 1; |
3280af22 | 2576 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2577 | flags |= 4; |
3280af22 | 2578 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2579 | flags |= 8; |
3280af22 | 2580 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2581 | flags |= 16; |
2582 | ||
727405f8 | 2583 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2584 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2585 | PL_sig_name[sig]); |
2586 | exit(sig); | |
2587 | } | |
ff0cee69 | 2588 | |
84902520 TB |
2589 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2590 | infinity, so we fix 4 (in fact 5): */ | |
2591 | if (flags & 1) { | |
3280af22 | 2592 | PL_savestack_ix += 5; /* Protect save in progress. */ |
4f1e9d25 | 2593 | SAVEDESTRUCTOR_X(S_unwind_handler_stack, (void*)&flags); |
84902520 | 2594 | } |
ac27b0f5 | 2595 | if (flags & 4) |
3280af22 | 2596 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2597 | if (flags & 8) { |
3280af22 NIS |
2598 | PL_retstack_ix++; |
2599 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2600 | } |
2601 | if (flags & 16) | |
3280af22 | 2602 | PL_scopestack_ix += 1; |
84902520 | 2603 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2604 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
4f1e9d25 AL |
2605 | || SvTYPE(cv) != SVt_PVCV) { |
2606 | HV *st; | |
22c35a8c | 2607 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
4f1e9d25 | 2608 | } |
84902520 | 2609 | |
a0d0e21e | 2610 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2611 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2612 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2613 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2614 | : ((cv && CvGV(cv)) |
2615 | ? GvENAME(CvGV(cv)) | |
2616 | : "__ANON__"))); | |
2617 | goto cleanup; | |
79072805 LW |
2618 | } |
2619 | ||
22c35a8c GS |
2620 | if(PL_psig_name[sig]) { |
2621 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2622 | flags |= 64; |
df3728a2 | 2623 | #if !defined(PERL_IMPLICIT_CONTEXT) |
fe20fd30 | 2624 | PL_sig_sv = sv; |
df3728a2 | 2625 | #endif |
84902520 | 2626 | } else { |
ff0cee69 | 2627 | sv = sv_newmortal(); |
22c35a8c | 2628 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2629 | } |
e336de0d | 2630 | |
e788e7d3 | 2631 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2632 | PUSHMARK(SP); |
79072805 | 2633 | PUSHs(sv); |
79072805 | 2634 | PUTBACK; |
a0d0e21e | 2635 | |
1b266415 | 2636 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2637 | |
d3acc0f7 | 2638 | POPSTACK; |
1b266415 | 2639 | if (SvTRUE(ERRSV)) { |
1d615522 | 2640 | #ifndef PERL_MICRO |
983dbef6 | 2641 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2642 | /* Handler "died", for example to get out of a restart-able read(). |
2643 | * Before we re-do that on its behalf re-enable the signal which was | |
2644 | * blocked by the system when we entered. | |
2645 | */ | |
2646 | sigset_t set; | |
2647 | sigemptyset(&set); | |
2648 | sigaddset(&set,sig); | |
2649 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2650 | #else | |
2651 | /* Not clear if this will work */ | |
2652 | (void)rsignal(sig, SIG_IGN); | |
71b97453 | 2653 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2654 | #endif |
1d615522 | 2655 | #endif /* !PERL_MICRO */ |
f9af18b8 | 2656 | Perl_die(aTHX_ Nullch); |
1b266415 | 2657 | } |
00d579c5 | 2658 | cleanup: |
84902520 | 2659 | if (flags & 1) |
3280af22 | 2660 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2661 | if (flags & 4) |
3280af22 | 2662 | PL_markstack_ptr--; |
ac27b0f5 | 2663 | if (flags & 8) |
3280af22 | 2664 | PL_retstack_ix--; |
84902520 | 2665 | if (flags & 16) |
3280af22 | 2666 | PL_scopestack_ix -= 1; |
84902520 TB |
2667 | if (flags & 64) |
2668 | SvREFCNT_dec(sv); | |
533c011a | 2669 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2670 | |
3280af22 NIS |
2671 | PL_Sv = tSv; /* Restore global temporaries. */ |
2672 | PL_Xpv = tXpv; | |
79072805 LW |
2673 | return; |
2674 | } | |
4e35701f NIS |
2675 | |
2676 | ||
51371543 | 2677 | static void |
4f1e9d25 | 2678 | S_restore_magic(pTHX_ const void *p) |
51371543 | 2679 | { |
4f1e9d25 AL |
2680 | MGS* const mgs = SSPTR(PTR2IV(p), MGS*); |
2681 | SV* const sv = mgs->mgs_sv; | |
51371543 GS |
2682 | |
2683 | if (!sv) | |
2684 | return; | |
2685 | ||
2686 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2687 | { | |
2688 | if (mgs->mgs_flags) | |
2689 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2690 | else | |
2691 | mg_magical(sv); | |
43e23f82 NC |
2692 | if (SvGMAGICAL(sv)) { |
2693 | /* downgrade public flags to private, | |
2694 | and discard any other private flags */ | |
2695 | ||
2696 | U32 public = SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK); | |
2697 | if (public) { | |
2698 | SvFLAGS(sv) &= ~( public | SVp_IOK|SVp_NOK|SVp_POK ); | |
2699 | SvFLAGS(sv) |= ( public << PRIVSHIFT ); | |
2700 | } | |
2701 | } | |
51371543 GS |
2702 | } |
2703 | ||
2704 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2705 | ||
2706 | /* If we're still on top of the stack, pop us off. (That condition | |
2707 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2708 | * if it's being called via leave_scope.) | |
2709 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2710 | * may leave alloc gunk on the savestack, and some code | |
2711 | * (e.g. sighandler) doesn't expect that... | |
2712 | */ | |
2713 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2714 | { | |
2715 | I32 popval = SSPOPINT; | |
c76ac1ee | 2716 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2717 | PL_savestack_ix -= 2; |
2718 | popval = SSPOPINT; | |
2719 | assert(popval == SAVEt_ALLOC); | |
2720 | popval = SSPOPINT; | |
2721 | PL_savestack_ix -= popval; | |
2722 | } | |
2723 | ||
2724 | } | |
2725 | ||
2726 | static void | |
4f1e9d25 | 2727 | S_unwind_handler_stack(pTHX_ const void *p) |
51371543 | 2728 | { |
c05e0e2f | 2729 | const U32 flags = *(const U32*)p; |
51371543 GS |
2730 | |
2731 | if (flags & 1) | |
2732 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2733 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2734 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 | 2735 | if (flags & 64) |
fe20fd30 | 2736 | SvREFCNT_dec(PL_sig_sv); |
df3728a2 | 2737 | #endif |
51371543 | 2738 | } |
1018e26f | 2739 | |
d8294a4d NC |
2740 | /* |
2741 | * Local variables: | |
2742 | * c-indentation-style: bsd | |
2743 | * c-basic-offset: 4 | |
2744 | * indent-tabs-mode: t | |
2745 | * End: | |
2746 | * | |
2747 | * ex: set ts=8 sts=4 sw=4 noet: | |
2748 | */ |