Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
b5f8cc5c | 4 | * 2000, 2001, 2002, 2003, 2004, 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 | |
18 | */ | |
19 | ||
79072805 | 20 | #include "EXTERN.h" |
864dbfa3 | 21 | #define PERL_IN_MG_C |
79072805 LW |
22 | #include "perl.h" |
23 | ||
5cd24f17 | 24 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
25 | # ifndef NGROUPS |
26 | # define NGROUPS 32 | |
27 | # endif | |
b7953727 JH |
28 | # ifdef I_GRP |
29 | # include <grp.h> | |
30 | # endif | |
188ea221 CS |
31 | #endif |
32 | ||
17aa7f3d JH |
33 | #ifdef __hpux |
34 | # include <sys/pstat.h> | |
35 | #endif | |
36 | ||
e69880a5 CB |
37 | Signal_t Perl_csighandler(int sig); |
38 | ||
23ada85b | 39 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 40 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 41 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 42 | #endif |
2e34cc90 | 43 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 | 44 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 CL |
45 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
46 | #endif | |
85b332e2 | 47 | |
acfe0abc GS |
48 | static void restore_magic(pTHX_ void *p); |
49 | static void unwind_handler_stack(pTHX_ void *p); | |
51371543 | 50 | |
9cffb111 OS |
51 | #ifdef __Lynx__ |
52 | /* Missing protos on LynxOS */ | |
53 | void setruid(uid_t id); | |
54 | void seteuid(uid_t id); | |
55 | void setrgid(uid_t id); | |
56 | void setegid(uid_t id); | |
57 | #endif | |
58 | ||
c07a80fd | 59 | /* |
60 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
61 | */ | |
62 | ||
63 | struct magic_state { | |
64 | SV* mgs_sv; | |
65 | U32 mgs_flags; | |
455ece5e | 66 | I32 mgs_ss_ix; |
c07a80fd | 67 | }; |
455ece5e | 68 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
69 | |
70 | STATIC void | |
8fb26106 | 71 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 72 | { |
455ece5e | 73 | MGS* mgs; |
c07a80fd | 74 | assert(SvMAGICAL(sv)); |
765f542d NC |
75 | #ifdef PERL_COPY_ON_WRITE |
76 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ | |
77 | if (SvIsCOW(sv)) | |
78 | sv_force_normal(sv); | |
79 | #endif | |
c07a80fd | 80 | |
685f876f | 81 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
82 | |
83 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 84 | mgs->mgs_sv = sv; |
85 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 86 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 87 | |
88 | SvMAGICAL_off(sv); | |
89 | SvREADONLY_off(sv); | |
06759ea0 | 90 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 91 | } |
92 | ||
954c1994 GS |
93 | /* |
94 | =for apidoc mg_magical | |
95 | ||
96 | Turns on the magical status of an SV. See C<sv_magic>. | |
97 | ||
98 | =cut | |
99 | */ | |
100 | ||
8990e307 | 101 | void |
864dbfa3 | 102 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
103 | { |
104 | MAGIC* mg; | |
105 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
106 | MGVTBL* vtbl = mg->mg_virtual; | |
107 | if (vtbl) { | |
2b260de0 | 108 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
109 | SvGMAGICAL_on(sv); |
110 | if (vtbl->svt_set) | |
111 | SvSMAGICAL_on(sv); | |
2b260de0 | 112 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
113 | SvRMAGICAL_on(sv); |
114 | } | |
115 | } | |
116 | } | |
117 | ||
954c1994 GS |
118 | /* |
119 | =for apidoc mg_get | |
120 | ||
121 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
122 | ||
123 | =cut | |
124 | */ | |
125 | ||
79072805 | 126 | int |
864dbfa3 | 127 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 128 | { |
ff76feab AMS |
129 | int new = 0; |
130 | MAGIC *newmg, *head, *cur, *mg; | |
131 | I32 mgs_ix = SSNEW(sizeof(MGS)); | |
20135930 NC |
132 | /* guard against sv having being freed midway by holding a private |
133 | reference. It's not possible to make this sv mortal without failing | |
134 | several tests - | |
135 | looks like it's important that it can get DESTROYed before the next | |
136 | FREETMPS | |
137 | Also it's not possible to wrap this function in a SAVETMPS/FREETMPS | |
138 | pair. We need drop our reference if croak() is called, but we also | |
139 | can't simply make it mortal and wait for the next FREETMPS, because | |
140 | other tests rely on the sv being freed earlier. Hence this hack. | |
141 | We create an extra reference on the caller's sv, owned by the rv, | |
142 | which is mortal. If croak is called the RV cleans up for us. | |
143 | If we reach the end of the function we change it to point at | |
144 | PL_sv_undef, and clean up manually. */ | |
145 | SV *temp_rv = sv_2mortal(newRV_inc(sv)); | |
146 | ||
455ece5e | 147 | save_magic(mgs_ix, sv); |
463ee0b2 | 148 | |
ff76feab AMS |
149 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
150 | list of magic. svt_get() may delete the current entry, add new | |
151 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
152 | ||
153 | newmg = cur = head = mg = SvMAGIC(sv); | |
154 | while (mg) { | |
155 | MGVTBL *vtbl = mg->mg_virtual; | |
156 | ||
2b260de0 | 157 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 158 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 | 159 | |
58f82c5c DM |
160 | /* guard against magic having been deleted - eg FETCH calling |
161 | * untie */ | |
162 | if (!SvMAGIC(sv)) | |
163 | break; | |
b77f7d40 | 164 | |
ff76feab AMS |
165 | /* Don't restore the flags for this entry if it was deleted. */ |
166 | if (mg->mg_flags & MGf_GSKIP) | |
167 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 168 | } |
ff76feab AMS |
169 | |
170 | mg = mg->mg_moremagic; | |
171 | ||
172 | if (new) { | |
173 | /* Have we finished with the new entries we saw? Start again | |
174 | where we left off (unless there are more new entries). */ | |
175 | if (mg == head) { | |
176 | new = 0; | |
177 | mg = cur; | |
178 | head = newmg; | |
179 | } | |
180 | } | |
181 | ||
182 | /* Were any new entries added? */ | |
183 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
184 | new = 1; | |
185 | cur = mg; | |
186 | mg = newmg; | |
760ac839 | 187 | } |
79072805 | 188 | } |
463ee0b2 | 189 | |
acfe0abc | 190 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
20135930 NC |
191 | SvRV(temp_rv) = &PL_sv_undef; |
192 | SvREFCNT_dec(sv); | |
79072805 LW |
193 | return 0; |
194 | } | |
195 | ||
954c1994 GS |
196 | /* |
197 | =for apidoc mg_set | |
198 | ||
199 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
200 | ||
201 | =cut | |
202 | */ | |
203 | ||
79072805 | 204 | int |
864dbfa3 | 205 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 206 | { |
8fb26106 | 207 | I32 mgs_ix; |
79072805 | 208 | MAGIC* mg; |
463ee0b2 LW |
209 | MAGIC* nextmg; |
210 | ||
455ece5e AD |
211 | mgs_ix = SSNEW(sizeof(MGS)); |
212 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
213 | |
214 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 215 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 216 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
217 | if (mg->mg_flags & MGf_GSKIP) { |
218 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 219 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 220 | } |
2b260de0 | 221 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 222 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 223 | } |
463ee0b2 | 224 | |
acfe0abc | 225 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
226 | return 0; |
227 | } | |
228 | ||
954c1994 GS |
229 | /* |
230 | =for apidoc mg_length | |
231 | ||
232 | Report on the SV's length. See C<sv_magic>. | |
233 | ||
234 | =cut | |
235 | */ | |
236 | ||
79072805 | 237 | U32 |
864dbfa3 | 238 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
239 | { |
240 | MAGIC* mg; | |
463ee0b2 | 241 | STRLEN len; |
463ee0b2 | 242 | |
79072805 LW |
243 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
244 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 245 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 246 | I32 mgs_ix; |
48e43a1c | 247 | |
455ece5e AD |
248 | mgs_ix = SSNEW(sizeof(MGS)); |
249 | save_magic(mgs_ix, sv); | |
a0d0e21e | 250 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 251 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 252 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
253 | return len; |
254 | } | |
255 | } | |
256 | ||
7719e241 | 257 | if (DO_UTF8(sv)) |
5636d518 DB |
258 | { |
259 | U8 *s = (U8*)SvPV(sv, len); | |
260 | len = Perl_utf8_length(aTHX_ s, s + len); | |
261 | } | |
262 | else | |
263 | (void)SvPV(sv, len); | |
463ee0b2 | 264 | return len; |
79072805 LW |
265 | } |
266 | ||
8fb26106 | 267 | I32 |
864dbfa3 | 268 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
269 | { |
270 | MAGIC* mg; | |
271 | I32 len; | |
ac27b0f5 | 272 | |
93965878 NIS |
273 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
274 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 275 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 276 | I32 mgs_ix; |
455ece5e AD |
277 | |
278 | mgs_ix = SSNEW(sizeof(MGS)); | |
279 | save_magic(mgs_ix, sv); | |
93965878 | 280 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 281 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 282 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
283 | return len; |
284 | } | |
285 | } | |
286 | ||
287 | switch(SvTYPE(sv)) { | |
288 | case SVt_PVAV: | |
289 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
290 | return len; | |
291 | case SVt_PVHV: | |
292 | /* FIXME */ | |
293 | default: | |
cea2e8a9 | 294 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
295 | break; |
296 | } | |
297 | return 0; | |
298 | } | |
299 | ||
954c1994 GS |
300 | /* |
301 | =for apidoc mg_clear | |
302 | ||
303 | Clear something magical that the SV represents. See C<sv_magic>. | |
304 | ||
305 | =cut | |
306 | */ | |
307 | ||
79072805 | 308 | int |
864dbfa3 | 309 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 310 | { |
8fb26106 | 311 | I32 mgs_ix; |
79072805 | 312 | MAGIC* mg; |
463ee0b2 | 313 | |
455ece5e AD |
314 | mgs_ix = SSNEW(sizeof(MGS)); |
315 | save_magic(mgs_ix, sv); | |
463ee0b2 | 316 | |
79072805 LW |
317 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
318 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e | 319 | /* omit GSKIP -- never set here */ |
727405f8 | 320 | |
2b260de0 | 321 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 322 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 323 | } |
463ee0b2 | 324 | |
acfe0abc | 325 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
326 | return 0; |
327 | } | |
328 | ||
954c1994 GS |
329 | /* |
330 | =for apidoc mg_find | |
331 | ||
332 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
333 | ||
334 | =cut | |
335 | */ | |
336 | ||
93a17b20 | 337 | MAGIC* |
864dbfa3 | 338 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
339 | { |
340 | MAGIC* mg; | |
3f8f4626 DC |
341 | if (!sv) |
342 | return 0; | |
93a17b20 LW |
343 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
344 | if (mg->mg_type == type) | |
345 | return mg; | |
346 | } | |
347 | return 0; | |
348 | } | |
349 | ||
954c1994 GS |
350 | /* |
351 | =for apidoc mg_copy | |
352 | ||
353 | Copies the magic from one SV to another. See C<sv_magic>. | |
354 | ||
355 | =cut | |
356 | */ | |
357 | ||
79072805 | 358 | int |
864dbfa3 | 359 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 360 | { |
463ee0b2 | 361 | int count = 0; |
79072805 | 362 | MAGIC* mg; |
463ee0b2 | 363 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 NIS |
364 | MGVTBL* vtbl = mg->mg_virtual; |
365 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ | |
366 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
367 | } | |
368 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 369 | sv_magic(nsv, |
14befaf4 DM |
370 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
371 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
372 | ? sv : mg->mg_obj, | |
33c27489 | 373 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 374 | count++; |
79072805 | 375 | } |
79072805 | 376 | } |
463ee0b2 | 377 | return count; |
79072805 LW |
378 | } |
379 | ||
954c1994 GS |
380 | /* |
381 | =for apidoc mg_free | |
382 | ||
383 | Free any magic storage used by the SV. See C<sv_magic>. | |
384 | ||
385 | =cut | |
386 | */ | |
387 | ||
79072805 | 388 | int |
864dbfa3 | 389 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
390 | { |
391 | MAGIC* mg; | |
392 | MAGIC* moremagic; | |
393 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
394 | MGVTBL* vtbl = mg->mg_virtual; | |
395 | moremagic = mg->mg_moremagic; | |
2b260de0 | 396 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 397 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 398 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
979acdb5 | 399 | if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8) |
88e89b8a | 400 | Safefree(mg->mg_ptr); |
565764a8 | 401 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 402 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 403 | } |
b881518d JH |
404 | if (mg->mg_flags & MGf_REFCOUNTED) |
405 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
406 | Safefree(mg); |
407 | } | |
408 | SvMAGIC(sv) = 0; | |
409 | return 0; | |
410 | } | |
411 | ||
79072805 | 412 | #include <signal.h> |
79072805 | 413 | |
942e002e | 414 | U32 |
864dbfa3 | 415 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 416 | { |
6cef1e77 | 417 | register REGEXP *rx; |
6cef1e77 | 418 | |
aaa362c4 | 419 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
420 | if (mg->mg_obj) /* @+ */ |
421 | return rx->nparens; | |
422 | else /* @- */ | |
423 | return rx->lastparen; | |
424 | } | |
ac27b0f5 | 425 | |
942e002e | 426 | return (U32)-1; |
6cef1e77 IZ |
427 | } |
428 | ||
429 | int | |
864dbfa3 | 430 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 431 | { |
6cef1e77 | 432 | register I32 paren; |
cf93c79d | 433 | register I32 s; |
6cef1e77 IZ |
434 | register I32 i; |
435 | register REGEXP *rx; | |
cf93c79d | 436 | I32 t; |
6cef1e77 | 437 | |
aaa362c4 | 438 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
439 | paren = mg->mg_len; |
440 | if (paren < 0) | |
441 | return 0; | |
eb160463 | 442 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
443 | (s = rx->startp[paren]) != -1 && |
444 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
445 | { |
446 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 447 | i = t; |
6cef1e77 | 448 | else /* @- */ |
cf93c79d | 449 | i = s; |
727405f8 | 450 | |
a30b2f1f | 451 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b | 452 | char *b = rx->subbeg; |
0064a8a9 JH |
453 | if (b) |
454 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 455 | } |
0064a8a9 JH |
456 | |
457 | sv_setiv(sv, i); | |
6cef1e77 IZ |
458 | } |
459 | } | |
460 | return 0; | |
461 | } | |
462 | ||
e4b89193 | 463 | int |
a29d06ed MG |
464 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
465 | { | |
a29d06ed | 466 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
467 | /* NOT REACHED */ |
468 | return 0; | |
a29d06ed MG |
469 | } |
470 | ||
93a17b20 | 471 | U32 |
864dbfa3 | 472 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
473 | { |
474 | register I32 paren; | |
93a17b20 | 475 | register I32 i; |
d9f97599 | 476 | register REGEXP *rx; |
a197cbdd | 477 | I32 s1, t1; |
93a17b20 LW |
478 | |
479 | switch (*mg->mg_ptr) { | |
480 | case '1': case '2': case '3': case '4': | |
481 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 482 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 483 | |
ffc61ed2 | 484 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 485 | getparen: |
eb160463 | 486 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
487 | (s1 = rx->startp[paren]) != -1 && |
488 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 489 | { |
cf93c79d | 490 | i = t1 - s1; |
a197cbdd | 491 | getlen: |
a30b2f1f | 492 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
ffc61ed2 | 493 | char *s = rx->subbeg + s1; |
a197cbdd | 494 | char *send = rx->subbeg + t1; |
ffc61ed2 | 495 | |
6d5fa195 | 496 | i = t1 - s1; |
60425c38 JH |
497 | if (is_utf8_string((U8*)s, i)) |
498 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 499 | } |
ffc61ed2 | 500 | if (i < 0) |
0844c848 | 501 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 502 | return i; |
93a17b20 | 503 | } |
235bddc8 NIS |
504 | else { |
505 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 506 | report_uninit(sv); |
235bddc8 NIS |
507 | } |
508 | } | |
509 | else { | |
510 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 511 | report_uninit(sv); |
93a17b20 | 512 | } |
748a9306 | 513 | return 0; |
93a17b20 | 514 | case '+': |
aaa362c4 | 515 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 516 | paren = rx->lastparen; |
13f57bf8 CS |
517 | if (paren) |
518 | goto getparen; | |
93a17b20 | 519 | } |
748a9306 | 520 | return 0; |
a01268b5 JH |
521 | case '\016': /* ^N */ |
522 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
523 | paren = rx->lastcloseparen; | |
524 | if (paren) | |
525 | goto getparen; | |
526 | } | |
527 | return 0; | |
93a17b20 | 528 | case '`': |
aaa362c4 | 529 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
530 | if (rx->startp[0] != -1) { |
531 | i = rx->startp[0]; | |
a197cbdd GS |
532 | if (i > 0) { |
533 | s1 = 0; | |
534 | t1 = i; | |
535 | goto getlen; | |
536 | } | |
93a17b20 | 537 | } |
93a17b20 | 538 | } |
748a9306 | 539 | return 0; |
93a17b20 | 540 | case '\'': |
aaa362c4 | 541 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
542 | if (rx->endp[0] != -1) { |
543 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
544 | if (i > 0) { |
545 | s1 = rx->endp[0]; | |
546 | t1 = rx->sublen; | |
547 | goto getlen; | |
548 | } | |
93a17b20 | 549 | } |
93a17b20 | 550 | } |
748a9306 | 551 | return 0; |
93a17b20 LW |
552 | } |
553 | magic_get(sv,mg); | |
2d8e6c8d GS |
554 | if (!SvPOK(sv) && SvNIOK(sv)) { |
555 | STRLEN n_a; | |
556 | sv_2pv(sv, &n_a); | |
557 | } | |
93a17b20 LW |
558 | if (SvPOK(sv)) |
559 | return SvCUR(sv); | |
560 | return 0; | |
561 | } | |
562 | ||
79072805 | 563 | int |
864dbfa3 | 564 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
565 | { |
566 | register I32 paren; | |
35272f84 | 567 | register char *s = NULL; |
79072805 | 568 | register I32 i; |
d9f97599 | 569 | register REGEXP *rx; |
79072805 LW |
570 | |
571 | switch (*mg->mg_ptr) { | |
748a9306 | 572 | case '\001': /* ^A */ |
3280af22 | 573 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 574 | break; |
49460fe6 NIS |
575 | case '\003': /* ^C */ |
576 | sv_setiv(sv, (IV)PL_minus_c); | |
577 | break; | |
578 | ||
79072805 | 579 | case '\004': /* ^D */ |
aea4f609 | 580 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
79072805 | 581 | break; |
28f23441 | 582 | case '\005': /* ^E */ |
0a378802 | 583 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 584 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
585 | { |
586 | char msg[256]; | |
727405f8 | 587 | |
0a378802 | 588 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 589 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 590 | } |
727405f8 | 591 | #else |
28f23441 | 592 | #ifdef VMS |
0a378802 JH |
593 | { |
594 | # include <descrip.h> | |
595 | # include <starlet.h> | |
596 | char msg[255]; | |
597 | $DESCRIPTOR(msgdsc,msg); | |
598 | sv_setnv(sv,(NV) vaxc$errno); | |
599 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
600 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
601 | else | |
602 | sv_setpv(sv,""); | |
603 | } | |
28f23441 | 604 | #else |
88e89b8a | 605 | #ifdef OS2 |
0a378802 JH |
606 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
607 | sv_setnv(sv, (NV)errno); | |
608 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
609 | } else { | |
610 | if (errno != errno_isOS2) { | |
611 | int tmp = _syserrno(); | |
612 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
613 | Perl_rc = tmp; | |
614 | } | |
615 | sv_setnv(sv, (NV)Perl_rc); | |
616 | sv_setpv(sv, os2error(Perl_rc)); | |
617 | } | |
88e89b8a | 618 | #else |
22fae026 | 619 | #ifdef WIN32 |
0a378802 JH |
620 | { |
621 | DWORD dwErr = GetLastError(); | |
622 | sv_setnv(sv, (NV)dwErr); | |
623 | if (dwErr) | |
624 | { | |
625 | PerlProc_GetOSError(sv, dwErr); | |
626 | } | |
627 | else | |
628 | sv_setpv(sv, ""); | |
629 | SetLastError(dwErr); | |
630 | } | |
22fae026 | 631 | #else |
f6c8f21d RGS |
632 | { |
633 | int saveerrno = errno; | |
634 | sv_setnv(sv, (NV)errno); | |
635 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
636 | errno = saveerrno; | |
637 | } | |
28f23441 | 638 | #endif |
88e89b8a | 639 | #endif |
22fae026 | 640 | #endif |
cd39f2b6 | 641 | #endif |
0a378802 JH |
642 | SvNOK_on(sv); /* what a wonderful hack! */ |
643 | } | |
644 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
645 | sv_setsv(sv, PL_encoding); | |
646 | break; | |
79072805 | 647 | case '\006': /* ^F */ |
3280af22 | 648 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 649 | break; |
a0d0e21e | 650 | case '\010': /* ^H */ |
3280af22 | 651 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 652 | break; |
9d116dd7 | 653 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
654 | if (PL_inplace) |
655 | sv_setpv(sv, PL_inplace); | |
79072805 | 656 | else |
3280af22 | 657 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 658 | break; |
ac27b0f5 | 659 | case '\017': /* ^O & ^OPEN */ |
3511154c | 660 | if (*(mg->mg_ptr+1) == '\0') { |
ac27b0f5 | 661 | sv_setpv(sv, PL_osname); |
3511154c DM |
662 | SvTAINTED_off(sv); |
663 | } | |
ac27b0f5 NIS |
664 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
665 | if (!PL_compiling.cop_io) | |
666 | sv_setsv(sv, &PL_sv_undef); | |
667 | else { | |
668 | sv_setsv(sv, PL_compiling.cop_io); | |
669 | } | |
670 | } | |
28f23441 | 671 | break; |
79072805 | 672 | case '\020': /* ^P */ |
3280af22 | 673 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 674 | break; |
fb73857a | 675 | case '\023': /* ^S */ |
4ffa73a3 | 676 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 677 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 678 | (void)SvOK_off(sv); |
3280af22 | 679 | else if (PL_in_eval) |
6dc8a9e4 | 680 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
681 | else |
682 | sv_setiv(sv, 0); | |
d58bf5aa | 683 | } |
fb73857a | 684 | break; |
79072805 | 685 | case '\024': /* ^T */ |
7c36658b | 686 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 687 | #ifdef BIG_TIME |
7c36658b | 688 | sv_setnv(sv, PL_basetime); |
88e89b8a | 689 | #else |
7c36658b | 690 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 691 | #endif |
7c36658b MS |
692 | } |
693 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
694 | sv_setiv(sv, PL_tainting |
695 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
696 | : 0); | |
7c36658b | 697 | break; |
a05d7ebb JH |
698 | case '\025': /* $^UNICODE */ |
699 | if (strEQ(mg->mg_ptr, "\025NICODE")) | |
700 | sv_setuv(sv, (UV) PL_unicode); | |
fde18df1 JH |
701 | break; |
702 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
703 | if (*(mg->mg_ptr+1) == '\0') |
704 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 705 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
706 | if (PL_compiling.cop_warnings == pWARN_NONE || |
707 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
708 | { |
709 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
710 | } | |
d3a7d8c7 | 711 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
712 | /* Get the bit mask for $warnings::Bits{all}, because |
713 | * it could have been extended by warnings::register */ | |
714 | SV **bits_all; | |
715 | HV *bits=get_hv("warnings::Bits", FALSE); | |
716 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
717 | sv_setsv(sv, *bits_all); | |
718 | } | |
719 | else { | |
720 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
721 | } | |
ac27b0f5 | 722 | } |
4438c4b7 JH |
723 | else { |
724 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 725 | } |
d3a7d8c7 | 726 | SvPOK_only(sv); |
4438c4b7 | 727 | } |
79072805 LW |
728 | break; |
729 | case '1': case '2': case '3': case '4': | |
730 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 731 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
732 | I32 s1, t1; |
733 | ||
a863c7d1 MB |
734 | /* |
735 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
736 | * XXX Does the new way break anything? | |
737 | */ | |
ffc61ed2 | 738 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 739 | getparen: |
eb160463 | 740 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
741 | (s1 = rx->startp[paren]) != -1 && |
742 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 743 | { |
cf93c79d IZ |
744 | i = t1 - s1; |
745 | s = rx->subbeg + s1; | |
01ec43d0 | 746 | if (!rx->subbeg) |
c2e66d9e GS |
747 | break; |
748 | ||
13f57bf8 | 749 | getrx: |
748a9306 | 750 | if (i >= 0) { |
cf93c79d | 751 | sv_setpvn(sv, s, i); |
a30b2f1f | 752 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
753 | SvUTF8_on(sv); |
754 | else | |
755 | SvUTF8_off(sv); | |
e9814ee1 HS |
756 | if (PL_tainting) { |
757 | if (RX_MATCH_TAINTED(rx)) { | |
758 | MAGIC* mg = SvMAGIC(sv); | |
759 | MAGIC* mgt; | |
760 | PL_tainted = 1; | |
761 | SvMAGIC(sv) = mg->mg_moremagic; | |
762 | SvTAINT(sv); | |
763 | if ((mgt = SvMAGIC(sv))) { | |
764 | mg->mg_moremagic = mgt; | |
765 | SvMAGIC(sv) = mg; | |
766 | } | |
767 | } else | |
768 | SvTAINTED_off(sv); | |
769 | } | |
748a9306 LW |
770 | break; |
771 | } | |
79072805 | 772 | } |
79072805 | 773 | } |
3280af22 | 774 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
775 | break; |
776 | case '+': | |
aaa362c4 | 777 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 778 | paren = rx->lastparen; |
a0d0e21e LW |
779 | if (paren) |
780 | goto getparen; | |
79072805 | 781 | } |
3280af22 | 782 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 783 | break; |
a01268b5 JH |
784 | case '\016': /* ^N */ |
785 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
786 | paren = rx->lastcloseparen; | |
787 | if (paren) | |
788 | goto getparen; | |
789 | } | |
790 | sv_setsv(sv,&PL_sv_undef); | |
791 | break; | |
79072805 | 792 | case '`': |
aaa362c4 | 793 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
794 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
795 | i = rx->startp[0]; | |
13f57bf8 | 796 | goto getrx; |
79072805 | 797 | } |
79072805 | 798 | } |
3280af22 | 799 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
800 | break; |
801 | case '\'': | |
aaa362c4 | 802 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
803 | if (rx->subbeg && rx->endp[0] != -1) { |
804 | s = rx->subbeg + rx->endp[0]; | |
805 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 806 | goto getrx; |
79072805 | 807 | } |
79072805 | 808 | } |
3280af22 | 809 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
810 | break; |
811 | case '.': | |
812 | #ifndef lint | |
3280af22 | 813 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 814 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
815 | } |
816 | #endif | |
817 | break; | |
818 | case '?': | |
809a5acc | 819 | { |
809a5acc | 820 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 821 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
822 | LvTARGOFF(sv) = PL_statusvalue; |
823 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 824 | #endif |
809a5acc | 825 | } |
79072805 LW |
826 | break; |
827 | case '^': | |
0daa599b RGS |
828 | if (GvIOp(PL_defoutgv)) |
829 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
830 | if (s) |
831 | sv_setpv(sv,s); | |
832 | else { | |
3280af22 | 833 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
834 | sv_catpv(sv,"_TOP"); |
835 | } | |
836 | break; | |
837 | case '~': | |
0daa599b RGS |
838 | if (GvIOp(PL_defoutgv)) |
839 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 840 | if (!s) |
3280af22 | 841 | s = GvENAME(PL_defoutgv); |
79072805 LW |
842 | sv_setpv(sv,s); |
843 | break; | |
844 | #ifndef lint | |
845 | case '=': | |
0daa599b RGS |
846 | if (GvIOp(PL_defoutgv)) |
847 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
848 | break; |
849 | case '-': | |
0daa599b RGS |
850 | if (GvIOp(PL_defoutgv)) |
851 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
852 | break; |
853 | case '%': | |
0daa599b RGS |
854 | if (GvIOp(PL_defoutgv)) |
855 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 LW |
856 | break; |
857 | #endif | |
858 | case ':': | |
859 | break; | |
860 | case '/': | |
861 | break; | |
862 | case '[': | |
3280af22 | 863 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
864 | break; |
865 | case '|': | |
0daa599b RGS |
866 | if (GvIOp(PL_defoutgv)) |
867 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
868 | break; |
869 | case ',': | |
79072805 LW |
870 | break; |
871 | case '\\': | |
b2ce0fda | 872 | if (PL_ors_sv) |
f28098ff | 873 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
874 | break; |
875 | case '#': | |
3280af22 | 876 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
877 | break; |
878 | case '!': | |
a5f75d66 | 879 | #ifdef VMS |
65202027 | 880 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 881 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 882 | #else |
88e89b8a | 883 | { |
884 | int saveerrno = errno; | |
65202027 | 885 | sv_setnv(sv, (NV)errno); |
88e89b8a | 886 | #ifdef OS2 |
ed344e4f IZ |
887 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
888 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 889 | else |
a5f75d66 | 890 | #endif |
2304df62 | 891 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 892 | errno = saveerrno; |
893 | } | |
894 | #endif | |
946ec16e | 895 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
896 | break; |
897 | case '<': | |
3280af22 | 898 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
899 | break; |
900 | case '>': | |
3280af22 | 901 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
902 | break; |
903 | case '(': | |
3280af22 | 904 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 905 | #ifdef HAS_GETGROUPS |
785fb66b | 906 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 907 | #endif |
79072805 LW |
908 | goto add_groups; |
909 | case ')': | |
3280af22 | 910 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 911 | #ifdef HAS_GETGROUPS |
785fb66b | 912 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 913 | #endif |
79072805 | 914 | add_groups: |
79072805 | 915 | #ifdef HAS_GETGROUPS |
79072805 | 916 | { |
a0d0e21e | 917 | Groups_t gary[NGROUPS]; |
79072805 | 918 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 919 | while (--i >= 0) |
785fb66b | 920 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
921 | } |
922 | #endif | |
155aba94 | 923 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 | 924 | break; |
cd39f2b6 | 925 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
926 | case '0': |
927 | break; | |
cd39f2b6 | 928 | #endif |
79072805 | 929 | } |
a0d0e21e | 930 | return 0; |
79072805 LW |
931 | } |
932 | ||
933 | int | |
864dbfa3 | 934 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
935 | { |
936 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
937 | ||
938 | if (uf && uf->uf_val) | |
24f81a43 | 939 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
940 | return 0; |
941 | } | |
942 | ||
943 | int | |
864dbfa3 | 944 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
945 | { |
946 | register char *s; | |
88e89b8a | 947 | char *ptr; |
5aabfad6 | 948 | STRLEN len, klen; |
1e422769 | 949 | |
a0d0e21e | 950 | s = SvPV(sv,len); |
5aabfad6 | 951 | ptr = MgPV(mg,klen); |
88e89b8a | 952 | my_setenv(ptr, s); |
1e422769 | 953 | |
a0d0e21e LW |
954 | #ifdef DYNAMIC_ENV_FETCH |
955 | /* We just undefd an environment var. Is a replacement */ | |
956 | /* waiting in the wings? */ | |
957 | if (!len) { | |
5aabfad6 | 958 | SV **valp; |
6b88bc9c | 959 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 960 | s = SvPV(*valp, len); |
a0d0e21e LW |
961 | } |
962 | #endif | |
1e422769 | 963 | |
39e571d4 | 964 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
965 | /* And you'll never guess what the dog had */ |
966 | /* in its mouth... */ | |
3280af22 | 967 | if (PL_tainting) { |
1e422769 | 968 | MgTAINTEDDIR_off(mg); |
969 | #ifdef VMS | |
5aabfad6 | 970 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 971 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 972 | Stat_t sbuf; |
1e422769 | 973 | int i = 0, j = 0; |
974 | ||
975 | do { /* DCL$PATH may be a search list */ | |
976 | while (1) { /* as may dev portion of any element */ | |
977 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
978 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
979 | cando_by_name(S_IWUSR,0,elt) ) { | |
980 | MgTAINTEDDIR_on(mg); | |
981 | return 0; | |
982 | } | |
983 | } | |
984 | if ((cp = strchr(elt, ':')) != Nullch) | |
985 | *cp = '\0'; | |
986 | if (my_trnlnm(elt, eltbuf, j++)) | |
987 | elt = eltbuf; | |
988 | else | |
989 | break; | |
990 | } | |
991 | j = 0; | |
992 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
993 | } | |
994 | #endif /* VMS */ | |
5aabfad6 | 995 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 996 | char *strend = s + len; |
463ee0b2 LW |
997 | |
998 | while (s < strend) { | |
96827780 | 999 | char tmpbuf[256]; |
c623ac67 | 1000 | Stat_t st; |
5f74f29c | 1001 | I32 i; |
96827780 | 1002 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 1003 | s, strend, ':', &i); |
463ee0b2 | 1004 | s++; |
96827780 MB |
1005 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
1006 | || *tmpbuf != '/' | |
c6ed36e1 | 1007 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 1008 | MgTAINTEDDIR_on(mg); |
1e422769 | 1009 | return 0; |
1010 | } | |
463ee0b2 | 1011 | } |
79072805 LW |
1012 | } |
1013 | } | |
39e571d4 | 1014 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1015 | |
79072805 LW |
1016 | return 0; |
1017 | } | |
1018 | ||
1019 | int | |
864dbfa3 | 1020 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1021 | { |
2d8e6c8d GS |
1022 | STRLEN n_a; |
1023 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
1024 | return 0; |
1025 | } | |
1026 | ||
88e89b8a | 1027 | int |
864dbfa3 | 1028 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1029 | { |
1030 | #if defined(VMS) | |
cea2e8a9 | 1031 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1032 | #else |
3280af22 | 1033 | if (PL_localizing) { |
fb73857a | 1034 | HE* entry; |
2d8e6c8d | 1035 | STRLEN n_a; |
fb73857a | 1036 | magic_clear_all_env(sv,mg); |
1037 | hv_iterinit((HV*)sv); | |
155aba94 | 1038 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1039 | I32 keylen; |
1040 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 1041 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 1042 | } |
1043 | } | |
1044 | #endif | |
1045 | return 0; | |
1046 | } | |
1047 | ||
1048 | int | |
864dbfa3 | 1049 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1050 | { |
2f42fcb0 | 1051 | #ifndef PERL_MICRO |
ed79a026 | 1052 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 1053 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1054 | #else |
4efc5df6 | 1055 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1056 | PerlEnv_clearenv(); |
4efc5df6 GS |
1057 | # else |
1058 | # ifdef USE_ENVIRON_ARRAY | |
1059 | # if defined(USE_ITHREADS) | |
1060 | /* only the parent thread can clobber the process environment */ | |
1061 | if (PL_curinterp == aTHX) | |
1062 | # endif | |
1063 | { | |
1064 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
1065 | I32 i; |
1066 | ||
3280af22 | 1067 | if (environ == PL_origenviron) |
f2517201 | 1068 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1069 | else |
1070 | for (i = 0; environ[i]; i++) | |
f2517201 | 1071 | safesysfree(environ[i]); |
4efc5df6 | 1072 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1073 | |
66b1d557 | 1074 | environ[0] = Nullch; |
4efc5df6 GS |
1075 | } |
1076 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 | 1077 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
2f42fcb0 JH |
1078 | #endif /* VMS || EPOC */ |
1079 | #endif /* !PERL_MICRO */ | |
3e3baf6d | 1080 | return 0; |
66b1d557 HM |
1081 | } |
1082 | ||
2e34cc90 CL |
1083 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1084 | static int sig_handlers_initted = 0; | |
1085 | #endif | |
7719e241 | 1086 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1087 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1088 | #endif | |
2e34cc90 CL |
1089 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1090 | static int sig_defaulting[SIG_SIZE]; | |
1091 | #endif | |
85b332e2 | 1092 | |
64ca3a65 | 1093 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1094 | #ifdef HAS_SIGPROCMASK |
1095 | static void | |
1096 | restore_sigmask(pTHX_ SV *save_sv) | |
1097 | { | |
1098 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); | |
1099 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); | |
1100 | } | |
1101 | #endif | |
66b1d557 | 1102 | int |
864dbfa3 | 1103 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1104 | { |
1105 | I32 i; | |
2d8e6c8d | 1106 | STRLEN n_a; |
88e89b8a | 1107 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1108 | i = whichsig(MgPV(mg,n_a)); |
e02bfb16 | 1109 | if (i > 0) { |
22c35a8c GS |
1110 | if(PL_psig_ptr[i]) |
1111 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1112 | else { |
85b332e2 | 1113 | Sighandler_t sigstate; |
2e34cc90 | 1114 | sigstate = rsignal_state(i); |
23ada85b | 1115 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1116 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1117 | #endif | |
1118 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1119 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1120 | #endif |
88e89b8a | 1121 | /* cache state so we don't fetch it again */ |
ff68c719 | 1122 | if(sigstate == SIG_IGN) |
88e89b8a | 1123 | sv_setpv(sv,"IGNORE"); |
1124 | else | |
3280af22 | 1125 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1126 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1127 | SvTEMP_off(sv); |
1128 | } | |
1129 | } | |
1130 | return 0; | |
1131 | } | |
1132 | int | |
864dbfa3 | 1133 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1134 | { |
2d4fcd5e AJ |
1135 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1136 | * refactoring might be in order. | |
1137 | */ | |
1138 | register char *s; | |
2d8e6c8d | 1139 | STRLEN n_a; |
2d4fcd5e AJ |
1140 | SV* to_dec; |
1141 | s = MgPV(mg,n_a); | |
1142 | if (*s == '_') { | |
1143 | SV** svp; | |
1144 | if (strEQ(s,"__DIE__")) | |
1145 | svp = &PL_diehook; | |
1146 | else if (strEQ(s,"__WARN__")) | |
1147 | svp = &PL_warnhook; | |
1148 | else | |
1149 | Perl_croak(aTHX_ "No such hook: %s", s); | |
1150 | if (*svp) { | |
1151 | to_dec = *svp; | |
1152 | *svp = 0; | |
1153 | SvREFCNT_dec(to_dec); | |
1154 | } | |
1155 | } | |
1156 | else { | |
1157 | I32 i; | |
1158 | /* Are we clearing a signal entry? */ | |
1159 | i = whichsig(s); | |
e02bfb16 | 1160 | if (i > 0) { |
2d4fcd5e AJ |
1161 | #ifdef HAS_SIGPROCMASK |
1162 | sigset_t set, save; | |
1163 | SV* save_sv; | |
1164 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1165 | sigemptyset(&set); | |
1166 | sigaddset(&set,i); | |
1167 | sigprocmask(SIG_BLOCK, &set, &save); | |
1168 | ENTER; | |
1169 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1170 | SAVEFREESV(save_sv); | |
1171 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1172 | #endif | |
1173 | PERL_ASYNC_CHECK(); | |
1174 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
1175 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1176 | #endif | |
1177 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1178 | sig_defaulting[i] = 1; | |
5c1546dc | 1179 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1180 | #else |
1181 | (void)rsignal(i, SIG_DFL); | |
1182 | #endif | |
1183 | if(PL_psig_name[i]) { | |
1184 | SvREFCNT_dec(PL_psig_name[i]); | |
1185 | PL_psig_name[i]=0; | |
1186 | } | |
1187 | if(PL_psig_ptr[i]) { | |
1188 | to_dec=PL_psig_ptr[i]; | |
1189 | PL_psig_ptr[i]=0; | |
1190 | LEAVE; | |
1191 | SvREFCNT_dec(to_dec); | |
1192 | } | |
1193 | else | |
1194 | LEAVE; | |
1195 | } | |
88e89b8a | 1196 | } |
1197 | return 0; | |
1198 | } | |
3d37d572 | 1199 | |
0a8e0eff NIS |
1200 | void |
1201 | Perl_raise_signal(pTHX_ int sig) | |
1202 | { | |
1203 | /* Set a flag to say this signal is pending */ | |
1204 | PL_psig_pend[sig]++; | |
1205 | /* And one to say _a_ signal is pending */ | |
1206 | PL_sig_pending = 1; | |
1207 | } | |
1208 | ||
1209 | Signal_t | |
1210 | Perl_csighandler(int sig) | |
1211 | { | |
1018e26f NIS |
1212 | #ifdef PERL_GET_SIG_CONTEXT |
1213 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1214 | #else | |
85b332e2 CL |
1215 | dTHX; |
1216 | #endif | |
23ada85b | 1217 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc | 1218 | (void) rsignal(sig, PL_csighandlerp); |
85b332e2 CL |
1219 | if (sig_ignoring[sig]) return; |
1220 | #endif | |
2e34cc90 | 1221 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1222 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1223 | #ifdef KILL_BY_SIGPRC |
1224 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1225 | #else | |
1226 | exit(1); | |
1227 | #endif | |
1228 | #endif | |
4ffa73a3 JH |
1229 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1230 | /* Call the perl level handler now-- | |
1231 | * with risk we may be in malloc() etc. */ | |
1232 | (*PL_sighandlerp)(sig); | |
1233 | else | |
1234 | Perl_raise_signal(aTHX_ sig); | |
0a8e0eff NIS |
1235 | } |
1236 | ||
2e34cc90 CL |
1237 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1238 | void | |
1239 | Perl_csighandler_init(void) | |
1240 | { | |
1241 | int sig; | |
1242 | if (sig_handlers_initted) return; | |
1243 | ||
1244 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1245 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1246 | dTHX; |
2e34cc90 | 1247 | sig_defaulting[sig] = 1; |
5c1546dc | 1248 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1249 | #endif |
1250 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1251 | sig_ignoring[sig] = 0; | |
1252 | #endif | |
1253 | } | |
1254 | sig_handlers_initted = 1; | |
1255 | } | |
1256 | #endif | |
1257 | ||
0a8e0eff NIS |
1258 | void |
1259 | Perl_despatch_signals(pTHX) | |
1260 | { | |
1261 | int sig; | |
1262 | PL_sig_pending = 0; | |
1263 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1264 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1265 | PERL_BLOCKSIG_ADD(set, sig); |
1266 | PL_psig_pend[sig] = 0; | |
1267 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1268 | (*PL_sighandlerp)(sig); |
25da4428 | 1269 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1270 | } |
1271 | } | |
1272 | } | |
1273 | ||
85e6fe83 | 1274 | int |
864dbfa3 | 1275 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1276 | { |
1277 | register char *s; | |
1278 | I32 i; | |
b7953727 | 1279 | SV** svp = 0; |
2d4fcd5e AJ |
1280 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1281 | * effects (due to closures). We must make sure that the new disposition | |
1282 | * is in place before it is called. | |
1283 | */ | |
1284 | SV* to_dec = 0; | |
e72dc28c | 1285 | STRLEN len; |
2d4fcd5e AJ |
1286 | #ifdef HAS_SIGPROCMASK |
1287 | sigset_t set, save; | |
1288 | SV* save_sv; | |
1289 | #endif | |
a0d0e21e | 1290 | |
e72dc28c | 1291 | s = MgPV(mg,len); |
748a9306 LW |
1292 | if (*s == '_') { |
1293 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1294 | svp = &PL_diehook; |
748a9306 | 1295 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1296 | svp = &PL_warnhook; |
748a9306 | 1297 | else |
cea2e8a9 | 1298 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1299 | i = 0; |
4633a7c4 | 1300 | if (*svp) { |
2d4fcd5e | 1301 | to_dec = *svp; |
4633a7c4 LW |
1302 | *svp = 0; |
1303 | } | |
748a9306 LW |
1304 | } |
1305 | else { | |
1306 | i = whichsig(s); /* ...no, a brick */ | |
e02bfb16 | 1307 | if (i < 0) { |
e476b1b5 | 1308 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1309 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1310 | return 0; |
1311 | } | |
2d4fcd5e AJ |
1312 | #ifdef HAS_SIGPROCMASK |
1313 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1314 | sigemptyset(&set); | |
1315 | sigaddset(&set,i); | |
1316 | sigprocmask(SIG_BLOCK, &set, &save); | |
1317 | ENTER; | |
1318 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1319 | SAVEFREESV(save_sv); | |
1320 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1321 | #endif | |
1322 | PERL_ASYNC_CHECK(); | |
2e34cc90 CL |
1323 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1324 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1325 | #endif | |
23ada85b | 1326 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1327 | sig_ignoring[i] = 0; |
1328 | #endif | |
2e34cc90 | 1329 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
2d4fcd5e | 1330 | sig_defaulting[i] = 0; |
2e34cc90 | 1331 | #endif |
22c35a8c | 1332 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1333 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1334 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1335 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1336 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1337 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1338 | } |
a0d0e21e | 1339 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1340 | if (i) { |
5c1546dc | 1341 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1342 | #ifdef HAS_SIGPROCMASK |
1343 | LEAVE; | |
1344 | #endif | |
1345 | } | |
748a9306 LW |
1346 | else |
1347 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1348 | if(to_dec) |
1349 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1350 | return 0; |
1351 | } | |
e72dc28c | 1352 | s = SvPV_force(sv,len); |
748a9306 | 1353 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1354 | if (i) { |
23ada85b | 1355 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 1356 | sig_ignoring[i] = 1; |
5c1546dc | 1357 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1358 | #else |
ff68c719 | 1359 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1360 | #endif |
2d4fcd5e | 1361 | } |
748a9306 LW |
1362 | } |
1363 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1364 | if (i) | |
2e34cc90 CL |
1365 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1366 | { | |
1367 | sig_defaulting[i] = 1; | |
5c1546dc | 1368 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1369 | } |
1370 | #else | |
ff68c719 | 1371 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1372 | #endif |
748a9306 | 1373 | } |
79072805 | 1374 | else { |
5aabfad6 | 1375 | /* |
1376 | * We should warn if HINT_STRICT_REFS, but without | |
1377 | * access to a known hint bit in a known OP, we can't | |
1378 | * tell whether HINT_STRICT_REFS is in force or not. | |
1379 | */ | |
46fc3d4c | 1380 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1381 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1382 | if (i) |
5c1546dc | 1383 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1384 | else |
1385 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1386 | } |
2d4fcd5e AJ |
1387 | #ifdef HAS_SIGPROCMASK |
1388 | if(i) | |
1389 | LEAVE; | |
1390 | #endif | |
1391 | if(to_dec) | |
1392 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1393 | return 0; |
1394 | } | |
64ca3a65 | 1395 | #endif /* !PERL_MICRO */ |
79072805 LW |
1396 | |
1397 | int | |
864dbfa3 | 1398 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1399 | { |
3280af22 | 1400 | PL_sub_generation++; |
463ee0b2 LW |
1401 | return 0; |
1402 | } | |
1403 | ||
1404 | int | |
864dbfa3 | 1405 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1406 | { |
a0d0e21e | 1407 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1408 | PL_amagic_generation++; |
463ee0b2 | 1409 | |
a0d0e21e LW |
1410 | return 0; |
1411 | } | |
463ee0b2 | 1412 | |
946ec16e | 1413 | int |
864dbfa3 | 1414 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1415 | { |
1416 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1417 | I32 i = 0; |
7719e241 | 1418 | |
6ff81951 | 1419 | if (hv) { |
497b47a8 JH |
1420 | (void) hv_iterinit(hv); |
1421 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1422 | i = HvKEYS(hv); | |
1423 | else { | |
1424 | while (hv_iternext(hv)) | |
1425 | i++; | |
1426 | } | |
6ff81951 GS |
1427 | } |
1428 | ||
1429 | sv_setiv(sv, (IV)i); | |
1430 | return 0; | |
1431 | } | |
1432 | ||
1433 | int | |
864dbfa3 | 1434 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1435 | { |
1436 | if (LvTARG(sv)) { | |
1437 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1438 | } |
1439 | return 0; | |
ac27b0f5 | 1440 | } |
946ec16e | 1441 | |
e336de0d | 1442 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1443 | STATIC int |
cea2e8a9 | 1444 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1445 | { |
1446 | dSP; | |
463ee0b2 | 1447 | |
924508f0 GS |
1448 | PUSHMARK(SP); |
1449 | EXTEND(SP, n); | |
33c27489 | 1450 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1451 | if (n > 1) { |
93965878 | 1452 | if (mg->mg_ptr) { |
565764a8 | 1453 | if (mg->mg_len >= 0) |
79cb57f6 | 1454 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1455 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1456 | PUSHs((SV*)mg->mg_ptr); |
1457 | } | |
14befaf4 | 1458 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1459 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1460 | } |
1461 | } | |
1462 | if (n > 2) { | |
1463 | PUSHs(val); | |
88e89b8a | 1464 | } |
463ee0b2 LW |
1465 | PUTBACK; |
1466 | ||
864dbfa3 | 1467 | return call_method(meth, flags); |
946ec16e | 1468 | } |
1469 | ||
76e3520e | 1470 | STATIC int |
cea2e8a9 | 1471 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1472 | { |
1473 | dSP; | |
463ee0b2 | 1474 | |
a0d0e21e LW |
1475 | ENTER; |
1476 | SAVETMPS; | |
e788e7d3 | 1477 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1478 | |
33c27489 | 1479 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1480 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1481 | } |
463ee0b2 | 1482 | |
d3acc0f7 | 1483 | POPSTACK; |
a0d0e21e LW |
1484 | FREETMPS; |
1485 | LEAVE; | |
1486 | return 0; | |
1487 | } | |
463ee0b2 | 1488 | |
a0d0e21e | 1489 | int |
864dbfa3 | 1490 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1491 | { |
a0d0e21e LW |
1492 | if (mg->mg_ptr) |
1493 | mg->mg_flags |= MGf_GSKIP; | |
58f82c5c | 1494 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1495 | return 0; |
1496 | } | |
1497 | ||
1498 | int | |
864dbfa3 | 1499 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1500 | { |
1501 | dSP; | |
a60c0954 | 1502 | ENTER; |
e788e7d3 | 1503 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1504 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1505 | POPSTACK; |
a60c0954 | 1506 | LEAVE; |
463ee0b2 LW |
1507 | return 0; |
1508 | } | |
1509 | ||
1510 | int | |
864dbfa3 | 1511 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1512 | { |
a0d0e21e LW |
1513 | return magic_methpack(sv,mg,"DELETE"); |
1514 | } | |
463ee0b2 | 1515 | |
93965878 NIS |
1516 | |
1517 | U32 | |
864dbfa3 | 1518 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1519 | { |
e336de0d | 1520 | dSP; |
93965878 NIS |
1521 | U32 retval = 0; |
1522 | ||
1523 | ENTER; | |
1524 | SAVETMPS; | |
e788e7d3 | 1525 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1526 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1527 | sv = *PL_stack_sp--; |
a60c0954 | 1528 | retval = (U32) SvIV(sv)-1; |
93965878 | 1529 | } |
d3acc0f7 | 1530 | POPSTACK; |
93965878 NIS |
1531 | FREETMPS; |
1532 | LEAVE; | |
1533 | return retval; | |
1534 | } | |
1535 | ||
cea2e8a9 GS |
1536 | int |
1537 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1538 | { |
1539 | dSP; | |
463ee0b2 | 1540 | |
e336de0d | 1541 | ENTER; |
e788e7d3 | 1542 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1543 | PUSHMARK(SP); |
33c27489 | 1544 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1545 | PUTBACK; |
864dbfa3 | 1546 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1547 | POPSTACK; |
a60c0954 | 1548 | LEAVE; |
a3bcc51e | 1549 | |
463ee0b2 LW |
1550 | return 0; |
1551 | } | |
1552 | ||
1553 | int | |
864dbfa3 | 1554 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1555 | { |
463ee0b2 | 1556 | dSP; |
dff6d3cd | 1557 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1558 | |
1559 | ENTER; | |
a0d0e21e | 1560 | SAVETMPS; |
e788e7d3 | 1561 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1562 | PUSHMARK(SP); |
1563 | EXTEND(SP, 2); | |
33c27489 | 1564 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1565 | if (SvOK(key)) |
1566 | PUSHs(key); | |
1567 | PUTBACK; | |
1568 | ||
864dbfa3 | 1569 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1570 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1571 | |
d3acc0f7 | 1572 | POPSTACK; |
a0d0e21e LW |
1573 | FREETMPS; |
1574 | LEAVE; | |
79072805 LW |
1575 | return 0; |
1576 | } | |
1577 | ||
1578 | int | |
864dbfa3 | 1579 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1580 | { |
1581 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1582 | } |
a0d0e21e | 1583 | |
a3bcc51e TP |
1584 | SV * |
1585 | Perl_magic_scalarpack(pTHX_ HV *hv, MAGIC *mg) | |
1586 | { | |
1587 | dSP; | |
1588 | SV *retval = &PL_sv_undef; | |
1589 | SV *tied = SvTIED_obj((SV*)hv, mg); | |
1590 | HV *pkg = SvSTASH((SV*)SvRV(tied)); | |
1591 | ||
1592 | if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) { | |
1593 | SV *key; | |
1594 | if (HvEITER(hv)) | |
1595 | /* we are in an iteration so the hash cannot be empty */ | |
1596 | return &PL_sv_yes; | |
1597 | /* no xhv_eiter so now use FIRSTKEY */ | |
1598 | key = sv_newmortal(); | |
1599 | magic_nextpack((SV*)hv, mg, key); | |
1600 | HvEITER(hv) = NULL; /* need to reset iterator */ | |
1601 | return SvOK(key) ? &PL_sv_yes : &PL_sv_no; | |
1602 | } | |
1603 | ||
1604 | /* there is a SCALAR method that we can call */ | |
1605 | ENTER; | |
1606 | PUSHSTACKi(PERLSI_MAGIC); | |
1607 | PUSHMARK(SP); | |
1608 | EXTEND(SP, 1); | |
1609 | PUSHs(tied); | |
1610 | PUTBACK; | |
1611 | ||
1612 | if (call_method("SCALAR", G_SCALAR)) | |
1613 | retval = *PL_stack_sp--; | |
1614 | POPSTACK; | |
1615 | LEAVE; | |
1616 | return retval; | |
1617 | } | |
1618 | ||
a0d0e21e | 1619 | int |
864dbfa3 | 1620 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1621 | { |
1622 | OP *o; | |
1623 | I32 i; | |
1624 | GV* gv; | |
1625 | SV** svp; | |
2d8e6c8d | 1626 | STRLEN n_a; |
79072805 | 1627 | |
3280af22 | 1628 | gv = PL_DBline; |
79072805 | 1629 | i = SvTRUE(sv); |
188ea221 | 1630 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1631 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 DM |
1632 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1633 | /* set or clear breakpoint in the relevant control op */ | |
1634 | if (i) | |
1635 | o->op_flags |= OPf_SPECIAL; | |
1636 | else | |
1637 | o->op_flags &= ~OPf_SPECIAL; | |
1638 | } | |
79072805 LW |
1639 | return 0; |
1640 | } | |
1641 | ||
1642 | int | |
864dbfa3 | 1643 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1644 | { |
3280af22 | 1645 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1646 | return 0; |
1647 | } | |
1648 | ||
1649 | int | |
864dbfa3 | 1650 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1651 | { |
3280af22 | 1652 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1653 | return 0; |
1654 | } | |
1655 | ||
1656 | int | |
864dbfa3 | 1657 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1658 | { |
1659 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1660 | |
a0d0e21e | 1661 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1662 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1663 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1664 | I32 i = mg->mg_len; |
7e2040f0 | 1665 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1666 | sv_pos_b2u(lsv, &i); |
1667 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1668 | return 0; |
1669 | } | |
1670 | } | |
1671 | (void)SvOK_off(sv); | |
1672 | return 0; | |
1673 | } | |
1674 | ||
1675 | int | |
864dbfa3 | 1676 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1677 | { |
1678 | SV* lsv = LvTARG(sv); | |
1679 | SSize_t pos; | |
1680 | STRLEN len; | |
c00206c8 | 1681 | STRLEN ulen = 0; |
a0d0e21e LW |
1682 | |
1683 | mg = 0; | |
ac27b0f5 | 1684 | |
a0d0e21e | 1685 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1686 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1687 | if (!mg) { |
1688 | if (!SvOK(sv)) | |
1689 | return 0; | |
14befaf4 DM |
1690 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1691 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1692 | } |
1693 | else if (!SvOK(sv)) { | |
565764a8 | 1694 | mg->mg_len = -1; |
a0d0e21e LW |
1695 | return 0; |
1696 | } | |
1697 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1698 | ||
c485e607 | 1699 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1700 | |
7e2040f0 | 1701 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1702 | ulen = sv_len_utf8(lsv); |
1703 | if (ulen) | |
1704 | len = ulen; | |
a0ed51b3 LW |
1705 | } |
1706 | ||
a0d0e21e LW |
1707 | if (pos < 0) { |
1708 | pos += len; | |
1709 | if (pos < 0) | |
1710 | pos = 0; | |
1711 | } | |
eb160463 | 1712 | else if (pos > (SSize_t)len) |
a0d0e21e | 1713 | pos = len; |
a0ed51b3 LW |
1714 | |
1715 | if (ulen) { | |
1716 | I32 p = pos; | |
1717 | sv_pos_u2b(lsv, &p, 0); | |
1718 | pos = p; | |
1719 | } | |
727405f8 | 1720 | |
565764a8 | 1721 | mg->mg_len = pos; |
71be2cbc | 1722 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1723 | |
79072805 LW |
1724 | return 0; |
1725 | } | |
1726 | ||
1727 | int | |
864dbfa3 | 1728 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1729 | { |
8646b087 | 1730 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1731 | SvFAKE_off(sv); | |
946ec16e | 1732 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1733 | SvFAKE_on(sv); |
1734 | } | |
1735 | else | |
946ec16e | 1736 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1737 | return 0; |
1738 | } | |
1739 | ||
1740 | int | |
864dbfa3 | 1741 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1742 | { |
1743 | register char *s; | |
1744 | GV* gv; | |
2d8e6c8d | 1745 | STRLEN n_a; |
79072805 LW |
1746 | |
1747 | if (!SvOK(sv)) | |
1748 | return 0; | |
2d8e6c8d | 1749 | s = SvPV(sv, n_a); |
79072805 LW |
1750 | if (*s == '*' && s[1]) |
1751 | s++; | |
85e6fe83 | 1752 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1753 | if (sv == (SV*)gv) |
1754 | return 0; | |
1755 | if (GvGP(sv)) | |
88e89b8a | 1756 | gp_free((GV*)sv); |
79072805 | 1757 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1758 | return 0; |
1759 | } | |
1760 | ||
1761 | int | |
864dbfa3 | 1762 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1763 | { |
1764 | STRLEN len; | |
1765 | SV *lsv = LvTARG(sv); | |
1766 | char *tmps = SvPV(lsv,len); | |
1767 | I32 offs = LvTARGOFF(sv); | |
1768 | I32 rem = LvTARGLEN(sv); | |
1769 | ||
9aa983d2 JH |
1770 | if (SvUTF8(lsv)) |
1771 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1772 | if (offs > (I32)len) |
6ff81951 | 1773 | offs = len; |
eb160463 | 1774 | if (rem + offs > (I32)len) |
6ff81951 GS |
1775 | rem = len - offs; |
1776 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1777 | if (SvUTF8(lsv)) |
2ef4b674 | 1778 | SvUTF8_on(sv); |
6ff81951 GS |
1779 | return 0; |
1780 | } | |
1781 | ||
1782 | int | |
864dbfa3 | 1783 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1784 | { |
9aa983d2 JH |
1785 | STRLEN len; |
1786 | char *tmps = SvPV(sv, len); | |
1787 | SV *lsv = LvTARG(sv); | |
1788 | I32 lvoff = LvTARGOFF(sv); | |
1789 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1790 | |
1aa99e6b | 1791 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1792 | sv_utf8_upgrade(lsv); |
1793 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1794 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
b76f3ce2 | 1795 | LvTARGLEN(sv) = sv_len_utf8(sv); |
9aa983d2 JH |
1796 | SvUTF8_on(lsv); |
1797 | } | |
9bf12eaf | 1798 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1799 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
b76f3ce2 | 1800 | LvTARGLEN(sv) = len; |
e95af362 | 1801 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1802 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1803 | Safefree(tmps); | |
1aa99e6b | 1804 | } |
b76f3ce2 GB |
1805 | else { |
1806 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1807 | LvTARGLEN(sv) = len; | |
1808 | } | |
1809 | ||
1aa99e6b | 1810 | |
79072805 LW |
1811 | return 0; |
1812 | } | |
1813 | ||
1814 | int | |
864dbfa3 | 1815 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1816 | { |
565764a8 | 1817 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1818 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1819 | return 0; |
1820 | } | |
1821 | ||
1822 | int | |
864dbfa3 | 1823 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1824 | { |
3280af22 NIS |
1825 | if (PL_localizing) { |
1826 | if (PL_localizing == 1) | |
565764a8 | 1827 | mg->mg_len <<= 1; |
748a9306 | 1828 | else |
565764a8 | 1829 | mg->mg_len >>= 1; |
a0d0e21e | 1830 | } |
3280af22 | 1831 | else if (PL_tainted) |
565764a8 | 1832 | mg->mg_len |= 1; |
748a9306 | 1833 | else |
565764a8 | 1834 | mg->mg_len &= ~1; |
463ee0b2 LW |
1835 | return 0; |
1836 | } | |
1837 | ||
1838 | int | |
864dbfa3 | 1839 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1840 | { |
1841 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1842 | |
1843 | if (!lsv) { | |
155aba94 | 1844 | (void)SvOK_off(sv); |
6ff81951 GS |
1845 | return 0; |
1846 | } | |
6ff81951 | 1847 | |
81e118e0 | 1848 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1849 | return 0; |
1850 | } | |
1851 | ||
1852 | int | |
864dbfa3 | 1853 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1854 | { |
1855 | do_vecset(sv); /* XXX slurp this routine */ | |
1856 | return 0; | |
1857 | } | |
1858 | ||
1859 | int | |
864dbfa3 | 1860 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1861 | { |
71be2cbc | 1862 | SV *targ = Nullsv; |
5f05dabc | 1863 | if (LvTARGLEN(sv)) { |
68dc0745 | 1864 | if (mg->mg_obj) { |
74e13ce4 | 1865 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1866 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1867 | if (he) | |
1868 | targ = HeVAL(he); | |
68dc0745 | 1869 | } |
1870 | else { | |
3c78fafa | 1871 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1872 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1873 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1874 | } | |
3280af22 | 1875 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1876 | /* somebody else defined it for us */ |
1877 | SvREFCNT_dec(LvTARG(sv)); | |
1878 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1879 | LvTARGLEN(sv) = 0; | |
1880 | SvREFCNT_dec(mg->mg_obj); | |
1881 | mg->mg_obj = Nullsv; | |
1882 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1883 | } | |
5f05dabc | 1884 | } |
71be2cbc | 1885 | else |
1886 | targ = LvTARG(sv); | |
3280af22 | 1887 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1888 | return 0; |
1889 | } | |
1890 | ||
1891 | int | |
864dbfa3 | 1892 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1893 | { |
1894 | if (LvTARGLEN(sv)) | |
68dc0745 | 1895 | vivify_defelem(sv); |
1896 | if (LvTARG(sv)) { | |
5f05dabc | 1897 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1898 | SvSETMAGIC(LvTARG(sv)); |
1899 | } | |
5f05dabc | 1900 | return 0; |
1901 | } | |
1902 | ||
71be2cbc | 1903 | void |
864dbfa3 | 1904 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1905 | { |
74e13ce4 GS |
1906 | MAGIC *mg; |
1907 | SV *value = Nullsv; | |
71be2cbc | 1908 | |
14befaf4 | 1909 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1910 | return; |
68dc0745 | 1911 | if (mg->mg_obj) { |
74e13ce4 | 1912 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1913 | STRLEN n_a; |
6d822dc4 MS |
1914 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1915 | if (he) | |
1916 | value = HeVAL(he); | |
3280af22 | 1917 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1918 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1919 | } |
68dc0745 | 1920 | else { |
1921 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1922 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1923 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1924 | else { | |
1925 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1926 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1927 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1928 | } |
1929 | } | |
3e3baf6d | 1930 | (void)SvREFCNT_inc(value); |
68dc0745 | 1931 | SvREFCNT_dec(LvTARG(sv)); |
1932 | LvTARG(sv) = value; | |
71be2cbc | 1933 | LvTARGLEN(sv) = 0; |
68dc0745 | 1934 | SvREFCNT_dec(mg->mg_obj); |
1935 | mg->mg_obj = Nullsv; | |
1936 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1937 | } |
1938 | ||
1939 | int | |
864dbfa3 | 1940 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1941 | { |
1942 | AV *av = (AV*)mg->mg_obj; | |
1943 | SV **svp = AvARRAY(av); | |
1944 | I32 i = AvFILLp(av); | |
1945 | while (i >= 0) { | |
fdc9a813 | 1946 | if (svp[i]) { |
810b8aa5 | 1947 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 | 1948 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1949 | /* XXX Should we check that it hasn't changed? */ |
1950 | SvRV(svp[i]) = 0; | |
155aba94 | 1951 | (void)SvOK_off(svp[i]); |
810b8aa5 | 1952 | SvWEAKREF_off(svp[i]); |
fdc9a813 | 1953 | svp[i] = Nullsv; |
810b8aa5 GS |
1954 | } |
1955 | i--; | |
1956 | } | |
d99b02a1 | 1957 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
1958 | return 0; |
1959 | } | |
1960 | ||
1961 | int | |
864dbfa3 | 1962 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1963 | { |
565764a8 | 1964 | mg->mg_len = -1; |
c6496cc7 | 1965 | SvSCREAM_off(sv); |
93a17b20 LW |
1966 | return 0; |
1967 | } | |
1968 | ||
1969 | int | |
864dbfa3 | 1970 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1971 | { |
14befaf4 | 1972 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1973 | SvVALID_off(sv); |
1974 | return 0; | |
1975 | } | |
1976 | ||
1977 | int | |
864dbfa3 | 1978 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1979 | { |
14befaf4 | 1980 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1981 | SvCOMPILED_off(sv); |
1982 | return 0; | |
1983 | } | |
1984 | ||
1985 | int | |
864dbfa3 | 1986 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1987 | { |
1988 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1989 | ||
1990 | if (uf && uf->uf_set) | |
24f81a43 | 1991 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1992 | return 0; |
1993 | } | |
1994 | ||
c277df42 | 1995 | int |
faf82a0b AE |
1996 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
1997 | { | |
1998 | sv_unmagic(sv, PERL_MAGIC_qr); | |
1999 | return 0; | |
2000 | } | |
2001 | ||
2002 | int | |
864dbfa3 | 2003 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
2004 | { |
2005 | regexp *re = (regexp *)mg->mg_obj; | |
2006 | ReREFCNT_dec(re); | |
2007 | return 0; | |
2008 | } | |
2009 | ||
7a4c00b4 | 2010 | #ifdef USE_LOCALE_COLLATE |
79072805 | 2011 | int |
864dbfa3 | 2012 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 2013 | { |
2014 | /* | |
838b5b74 | 2015 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 2016 | * and vanished with a faint plop. |
2017 | */ | |
7a4c00b4 | 2018 | if (mg->mg_ptr) { |
2019 | Safefree(mg->mg_ptr); | |
2020 | mg->mg_ptr = NULL; | |
565764a8 | 2021 | mg->mg_len = -1; |
7a4c00b4 | 2022 | } |
bbce6d69 | 2023 | return 0; |
2024 | } | |
7a4c00b4 | 2025 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 2026 | |
7e8c5dac HS |
2027 | /* Just clear the UTF-8 cache data. */ |
2028 | int | |
2029 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
2030 | { | |
2031 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ | |
2032 | mg->mg_ptr = 0; | |
2033 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
2034 | return 0; | |
2035 | } | |
2036 | ||
bbce6d69 | 2037 | int |
864dbfa3 | 2038 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
2039 | { |
2040 | register char *s; | |
2041 | I32 i; | |
8990e307 | 2042 | STRLEN len; |
79072805 | 2043 | switch (*mg->mg_ptr) { |
748a9306 | 2044 | case '\001': /* ^A */ |
3280af22 | 2045 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 2046 | break; |
49460fe6 | 2047 | case '\003': /* ^C */ |
eb160463 | 2048 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
2049 | break; |
2050 | ||
79072805 | 2051 | case '\004': /* ^D */ |
b4ab917c DM |
2052 | #ifdef DEBUGGING |
2053 | s = SvPV_nolen(sv); | |
2054 | PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG; | |
79072805 | 2055 | DEBUG_x(dump_all()); |
b4ab917c DM |
2056 | #else |
2057 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
2058 | #endif | |
79072805 | 2059 | break; |
28f23441 | 2060 | case '\005': /* ^E */ |
d0063567 | 2061 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2062 | #ifdef MACOS_TRADITIONAL |
d0063567 | 2063 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2064 | #else |
cd39f2b6 | 2065 | # ifdef VMS |
d0063567 | 2066 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2067 | # else |
cd39f2b6 | 2068 | # ifdef WIN32 |
d0063567 | 2069 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2070 | # else |
9fed8b87 | 2071 | # ifdef OS2 |
d0063567 | 2072 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2073 | # else |
d0063567 DK |
2074 | /* will anyone ever use this? */ |
2075 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2076 | # endif |
048c1ddf IZ |
2077 | # endif |
2078 | # endif | |
22fae026 | 2079 | #endif |
d0063567 DK |
2080 | } |
2081 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2082 | if (PL_encoding) | |
2083 | SvREFCNT_dec(PL_encoding); | |
2084 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2085 | PL_encoding = newSVsv(sv); | |
2086 | } | |
2087 | else { | |
2088 | PL_encoding = Nullsv; | |
2089 | } | |
2090 | } | |
2091 | break; | |
79072805 | 2092 | case '\006': /* ^F */ |
3280af22 | 2093 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2094 | break; |
a0d0e21e | 2095 | case '\010': /* ^H */ |
3280af22 | 2096 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2097 | break; |
9d116dd7 | 2098 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2099 | if (PL_inplace) |
2100 | Safefree(PL_inplace); | |
79072805 | 2101 | if (SvOK(sv)) |
2d8e6c8d | 2102 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 2103 | else |
3280af22 | 2104 | PL_inplace = Nullch; |
79072805 | 2105 | break; |
28f23441 | 2106 | case '\017': /* ^O */ |
ac27b0f5 | 2107 | if (*(mg->mg_ptr+1) == '\0') { |
1bf29663 | 2108 | if (PL_osname) { |
ac27b0f5 | 2109 | Safefree(PL_osname); |
1bf29663 DM |
2110 | PL_osname = Nullch; |
2111 | } | |
3511154c DM |
2112 | if (SvOK(sv)) { |
2113 | TAINT_PROPER("assigning to $^O"); | |
ac27b0f5 | 2114 | PL_osname = savepv(SvPV(sv,len)); |
3511154c | 2115 | } |
ac27b0f5 NIS |
2116 | } |
2117 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2118 | if (!PL_compiling.cop_io) | |
2119 | PL_compiling.cop_io = newSVsv(sv); | |
2120 | else | |
2121 | sv_setsv(PL_compiling.cop_io,sv); | |
2122 | } | |
28f23441 | 2123 | break; |
79072805 | 2124 | case '\020': /* ^P */ |
3280af22 | 2125 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
39bd0f18 PJ |
2126 | if ((PERLDB_SUB || PERLDB_LINE || PERLDB_SUBLINE || PERLDB_ASSERTION) |
2127 | && !PL_DBsingle) | |
1ee4443e | 2128 | init_debugger(); |
79072805 LW |
2129 | break; |
2130 | case '\024': /* ^T */ | |
88e89b8a | 2131 | #ifdef BIG_TIME |
6b88bc9c | 2132 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2133 | #else |
3280af22 | 2134 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2135 | #endif |
79072805 | 2136 | break; |
fde18df1 | 2137 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2138 | if (*(mg->mg_ptr+1) == '\0') { |
2139 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2140 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2141 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2142 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2143 | } |
599cee73 | 2144 | } |
0a378802 | 2145 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2146 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2147 | if (!SvPOK(sv) && PL_localizing) { |
2148 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2149 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2150 | break; |
2151 | } | |
f4fc7782 | 2152 | { |
b5477537 | 2153 | STRLEN len, i; |
d3a7d8c7 | 2154 | int accumulate = 0 ; |
f4fc7782 | 2155 | int any_fatals = 0 ; |
d3a7d8c7 | 2156 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
2157 | for (i = 0 ; i < len ; ++i) { |
2158 | accumulate |= ptr[i] ; | |
2159 | any_fatals |= (ptr[i] & 0xAA) ; | |
2160 | } | |
d3a7d8c7 GS |
2161 | if (!accumulate) |
2162 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2163 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2164 | PL_compiling.cop_warnings = pWARN_ALL; | |
2165 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2166 | } |
d3a7d8c7 GS |
2167 | else { |
2168 | if (specialWARN(PL_compiling.cop_warnings)) | |
2169 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2170 | else | |
2171 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2172 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2173 | PL_dowarn |= G_WARN_ONCE ; | |
2174 | } | |
f4fc7782 | 2175 | |
d3a7d8c7 | 2176 | } |
4438c4b7 | 2177 | } |
971a9dd3 | 2178 | } |
79072805 LW |
2179 | break; |
2180 | case '.': | |
3280af22 NIS |
2181 | if (PL_localizing) { |
2182 | if (PL_localizing == 1) | |
7766f137 | 2183 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2184 | } |
3280af22 | 2185 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2186 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2187 | break; |
2188 | case '^': | |
3280af22 | 2189 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2190 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2191 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2192 | break; |
2193 | case '~': | |
3280af22 | 2194 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2195 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2196 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2197 | break; |
2198 | case '=': | |
632db599 | 2199 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2200 | break; |
2201 | case '-': | |
632db599 | 2202 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2203 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2204 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2205 | break; |
2206 | case '%': | |
632db599 | 2207 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2208 | break; |
2209 | case '|': | |
4b65379b | 2210 | { |
3280af22 | 2211 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2212 | if(!io) |
2213 | break; | |
4b65379b CS |
2214 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2215 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2216 | else { | |
2217 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2218 | PerlIO *ofp = IoOFP(io); | |
2219 | if (ofp) | |
2220 | (void)PerlIO_flush(ofp); | |
2221 | IoFLAGS(io) |= IOf_FLUSH; | |
2222 | } | |
2223 | } | |
79072805 LW |
2224 | } |
2225 | break; | |
79072805 | 2226 | case '/': |
3280af22 | 2227 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2228 | PL_rs = newSVsv(sv); |
79072805 LW |
2229 | break; |
2230 | case '\\': | |
7889fe52 NIS |
2231 | if (PL_ors_sv) |
2232 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2233 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2234 | PL_ors_sv = newSVsv(sv); |
009c130f | 2235 | } |
e3c19b7b | 2236 | else { |
7889fe52 | 2237 | PL_ors_sv = Nullsv; |
e3c19b7b | 2238 | } |
79072805 LW |
2239 | break; |
2240 | case ',': | |
7889fe52 NIS |
2241 | if (PL_ofs_sv) |
2242 | SvREFCNT_dec(PL_ofs_sv); | |
2243 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2244 | PL_ofs_sv = newSVsv(sv); | |
2245 | } | |
2246 | else { | |
2247 | PL_ofs_sv = Nullsv; | |
2248 | } | |
79072805 LW |
2249 | break; |
2250 | case '#': | |
3280af22 NIS |
2251 | if (PL_ofmt) |
2252 | Safefree(PL_ofmt); | |
2d8e6c8d | 2253 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2254 | break; |
2255 | case '[': | |
3280af22 | 2256 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2257 | break; |
2258 | case '?': | |
ff0cee69 | 2259 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2260 | if (PL_localizing == 2) { |
2261 | PL_statusvalue = LvTARGOFF(sv); | |
2262 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2263 | } |
2264 | else | |
2265 | #endif | |
2266 | #ifdef VMSISH_STATUS | |
2267 | if (VMSISH_STATUS) | |
2268 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2269 | else | |
2270 | #endif | |
2271 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2272 | break; |
2273 | case '!': | |
93189314 JH |
2274 | { |
2275 | #ifdef VMS | |
2276 | # define PERL_VMS_BANG vaxc$errno | |
2277 | #else | |
2278 | # define PERL_VMS_BANG 0 | |
2279 | #endif | |
91487cfc | 2280 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2281 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2282 | } | |
79072805 LW |
2283 | break; |
2284 | case '<': | |
3280af22 NIS |
2285 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2286 | if (PL_delaymagic) { | |
2287 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2288 | break; /* don't do magic till later */ |
2289 | } | |
2290 | #ifdef HAS_SETRUID | |
b28d0864 | 2291 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2292 | #else |
2293 | #ifdef HAS_SETREUID | |
3280af22 | 2294 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2295 | #else |
85e6fe83 | 2296 | #ifdef HAS_SETRESUID |
b28d0864 | 2297 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2298 | #else |
75870ed3 | 2299 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2300 | #ifdef PERL_DARWIN | |
2301 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2302 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2303 | (void)PerlProc_setuid(0); | |
2304 | #endif | |
b28d0864 | 2305 | (void)PerlProc_setuid(PL_uid); |
75870ed3 | 2306 | } else { |
d8eceb89 | 2307 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2308 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2309 | } |
79072805 LW |
2310 | #endif |
2311 | #endif | |
85e6fe83 | 2312 | #endif |
d8eceb89 | 2313 | PL_uid = PerlProc_getuid(); |
3280af22 | 2314 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2315 | break; |
2316 | case '>': | |
3280af22 NIS |
2317 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2318 | if (PL_delaymagic) { | |
2319 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2320 | break; /* don't do magic till later */ |
2321 | } | |
2322 | #ifdef HAS_SETEUID | |
3280af22 | 2323 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2324 | #else |
2325 | #ifdef HAS_SETREUID | |
b28d0864 | 2326 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2327 | #else |
2328 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2329 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2330 | #else |
b28d0864 NIS |
2331 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2332 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2333 | else { |
e8ee3774 | 2334 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2335 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2336 | } |
79072805 LW |
2337 | #endif |
2338 | #endif | |
85e6fe83 | 2339 | #endif |
d8eceb89 | 2340 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2341 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2342 | break; |
2343 | case '(': | |
3280af22 NIS |
2344 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2345 | if (PL_delaymagic) { | |
2346 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2347 | break; /* don't do magic till later */ |
2348 | } | |
2349 | #ifdef HAS_SETRGID | |
b28d0864 | 2350 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2351 | #else |
2352 | #ifdef HAS_SETREGID | |
3280af22 | 2353 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2354 | #else |
2355 | #ifdef HAS_SETRESGID | |
b28d0864 | 2356 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2357 | #else |
b28d0864 NIS |
2358 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2359 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2360 | else { |
d8eceb89 | 2361 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2362 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2363 | } |
79072805 LW |
2364 | #endif |
2365 | #endif | |
85e6fe83 | 2366 | #endif |
d8eceb89 | 2367 | PL_gid = PerlProc_getgid(); |
3280af22 | 2368 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2369 | break; |
2370 | case ')': | |
5cd24f17 | 2371 | #ifdef HAS_SETGROUPS |
2372 | { | |
2d8e6c8d | 2373 | char *p = SvPV(sv, len); |
5cd24f17 | 2374 | Groups_t gary[NGROUPS]; |
2375 | ||
5cd24f17 | 2376 | while (isSPACE(*p)) |
2377 | ++p; | |
2d4389e4 | 2378 | PL_egid = Atol(p); |
5cd24f17 | 2379 | for (i = 0; i < NGROUPS; ++i) { |
2380 | while (*p && !isSPACE(*p)) | |
2381 | ++p; | |
2382 | while (isSPACE(*p)) | |
2383 | ++p; | |
2384 | if (!*p) | |
2385 | break; | |
2d4389e4 | 2386 | gary[i] = Atol(p); |
5cd24f17 | 2387 | } |
8cc95fdb | 2388 | if (i) |
2389 | (void)setgroups(i, gary); | |
5cd24f17 | 2390 | } |
2391 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2392 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2393 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2394 | if (PL_delaymagic) { |
2395 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2396 | break; /* don't do magic till later */ |
2397 | } | |
2398 | #ifdef HAS_SETEGID | |
3280af22 | 2399 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2400 | #else |
2401 | #ifdef HAS_SETREGID | |
b28d0864 | 2402 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2403 | #else |
2404 | #ifdef HAS_SETRESGID | |
b28d0864 | 2405 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2406 | #else |
b28d0864 NIS |
2407 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2408 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2409 | else { |
d8eceb89 | 2410 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2411 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2412 | } |
79072805 LW |
2413 | #endif |
2414 | #endif | |
85e6fe83 | 2415 | #endif |
d8eceb89 | 2416 | PL_egid = PerlProc_getegid(); |
3280af22 | 2417 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2418 | break; |
2419 | case ':': | |
2d8e6c8d | 2420 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2421 | break; |
cd39f2b6 | 2422 | #ifndef MACOS_TRADITIONAL |
79072805 | 2423 | case '0': |
e2975953 | 2424 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2425 | #ifdef HAS_SETPROCTITLE |
2426 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2427 | * show a string from the process struct and provide | |
2428 | * the setproctitle() routine to manipulate that. */ | |
2429 | { | |
2430 | s = SvPV(sv, len); | |
98b76f99 | 2431 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2432 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2433 | * but not the "(perl) suffix from the ps(1) |
2434 | * output, because that's what ps(1) shows if the | |
2435 | * argv[] is modified. */ | |
6f2ad931 | 2436 | setproctitle("-%s", s); |
9aad2c0e | 2437 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2438 | /* This doesn't really work if you assume that |
2439 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2440 | * because in ps(1) output the result will be like | |
2441 | * sprintf("perl: %s (perl)", s) | |
2442 | * I guess this is a security feature: | |
2443 | * one (a user process) cannot get rid of the original name. | |
2444 | * --jhi */ | |
2445 | setproctitle("%s", s); | |
2446 | # endif | |
2447 | } | |
2448 | #endif | |
17aa7f3d JH |
2449 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2450 | { | |
2451 | union pstun un; | |
2452 | s = SvPV(sv, len); | |
2453 | un.pst_command = s; | |
2454 | pstat(PSTAT_SETCMD, un, len, 0, 0); | |
2455 | } | |
2456 | #endif | |
3cb9023d | 2457 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2458 | s = SvPV_force(sv,len); |
6f698202 AMS |
2459 | if (len >= (STRLEN)PL_origalen-1) { |
2460 | /* Longer than original, will be truncated. We assume that | |
2461 | * PL_origalen bytes are available. */ | |
2462 | Copy(s, PL_origargv[0], PL_origalen-1, char); | |
79072805 LW |
2463 | } |
2464 | else { | |
54bfe034 JH |
2465 | /* Shorter than original, will be padded. */ |
2466 | Copy(s, PL_origargv[0], len, char); | |
2467 | PL_origargv[0][len] = 0; | |
2468 | memset(PL_origargv[0] + len + 1, | |
2469 | /* Is the space counterintuitive? Yes. | |
2470 | * (You were expecting \0?) | |
3cb9023d | 2471 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 JH |
2472 | * --jhi */ |
2473 | (int)' ', | |
2474 | PL_origalen - len - 1); | |
79072805 | 2475 | } |
ad7eccf4 JD |
2476 | PL_origargv[0][PL_origalen-1] = 0; |
2477 | for (i = 1; i < PL_origargc; i++) | |
2478 | PL_origargv[i] = 0; | |
e2975953 | 2479 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2480 | break; |
cd39f2b6 | 2481 | #endif |
79072805 LW |
2482 | } |
2483 | return 0; | |
2484 | } | |
2485 | ||
2486 | I32 | |
864dbfa3 | 2487 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2488 | { |
2489 | register char **sigv; | |
2490 | ||
e02bfb16 | 2491 | for (sigv = PL_sig_name; *sigv; sigv++) |
79072805 | 2492 | if (strEQ(sig,*sigv)) |
22c35a8c | 2493 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2494 | #ifdef SIGCLD |
2495 | if (strEQ(sig,"CHLD")) | |
2496 | return SIGCLD; | |
2497 | #endif | |
2498 | #ifdef SIGCHLD | |
2499 | if (strEQ(sig,"CLD")) | |
2500 | return SIGCHLD; | |
2501 | #endif | |
7f1236c0 | 2502 | return -1; |
79072805 LW |
2503 | } |
2504 | ||
df3728a2 | 2505 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2506 | static SV* sig_sv; |
df3728a2 | 2507 | #endif |
84902520 | 2508 | |
ecfc5424 | 2509 | Signal_t |
cea2e8a9 | 2510 | Perl_sighandler(int sig) |
79072805 | 2511 | { |
1018e26f NIS |
2512 | #ifdef PERL_GET_SIG_CONTEXT |
2513 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2514 | #else |
cea2e8a9 | 2515 | dTHX; |
71d280e3 | 2516 | #endif |
79072805 | 2517 | dSP; |
00d579c5 | 2518 | GV *gv = Nullgv; |
a0d0e21e | 2519 | HV *st; |
b7953727 | 2520 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2521 | CV *cv = Nullcv; |
533c011a | 2522 | OP *myop = PL_op; |
84902520 | 2523 | U32 flags = 0; |
3280af22 | 2524 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2525 | |
3280af22 | 2526 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2527 | flags |= 1; |
3280af22 | 2528 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2529 | flags |= 4; |
3280af22 | 2530 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2531 | flags |= 8; |
3280af22 | 2532 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2533 | flags |= 16; |
2534 | ||
727405f8 | 2535 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2536 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2537 | PL_sig_name[sig]); |
2538 | exit(sig); | |
2539 | } | |
ff0cee69 | 2540 | |
84902520 TB |
2541 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2542 | infinity, so we fix 4 (in fact 5): */ | |
2543 | if (flags & 1) { | |
3280af22 | 2544 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2545 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2546 | } |
ac27b0f5 | 2547 | if (flags & 4) |
3280af22 | 2548 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2549 | if (flags & 8) { |
3280af22 NIS |
2550 | PL_retstack_ix++; |
2551 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2552 | } |
2553 | if (flags & 16) | |
3280af22 | 2554 | PL_scopestack_ix += 1; |
84902520 | 2555 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2556 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2557 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2558 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2559 | |
a0d0e21e | 2560 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2561 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2562 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2563 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2564 | : ((cv && CvGV(cv)) |
2565 | ? GvENAME(CvGV(cv)) | |
2566 | : "__ANON__"))); | |
2567 | goto cleanup; | |
79072805 LW |
2568 | } |
2569 | ||
22c35a8c GS |
2570 | if(PL_psig_name[sig]) { |
2571 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2572 | flags |= 64; |
df3728a2 | 2573 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2574 | sig_sv = sv; |
df3728a2 | 2575 | #endif |
84902520 | 2576 | } else { |
ff0cee69 | 2577 | sv = sv_newmortal(); |
22c35a8c | 2578 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2579 | } |
e336de0d | 2580 | |
e788e7d3 | 2581 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2582 | PUSHMARK(SP); |
79072805 | 2583 | PUSHs(sv); |
79072805 | 2584 | PUTBACK; |
a0d0e21e | 2585 | |
1b266415 | 2586 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2587 | |
d3acc0f7 | 2588 | POPSTACK; |
1b266415 | 2589 | if (SvTRUE(ERRSV)) { |
1d615522 | 2590 | #ifndef PERL_MICRO |
983dbef6 | 2591 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2592 | /* Handler "died", for example to get out of a restart-able read(). |
2593 | * Before we re-do that on its behalf re-enable the signal which was | |
2594 | * blocked by the system when we entered. | |
2595 | */ | |
2596 | sigset_t set; | |
2597 | sigemptyset(&set); | |
2598 | sigaddset(&set,sig); | |
2599 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2600 | #else | |
2601 | /* Not clear if this will work */ | |
2602 | (void)rsignal(sig, SIG_IGN); | |
5c1546dc | 2603 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2604 | #endif |
1d615522 | 2605 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2606 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2607 | } |
00d579c5 | 2608 | cleanup: |
84902520 | 2609 | if (flags & 1) |
3280af22 | 2610 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2611 | if (flags & 4) |
3280af22 | 2612 | PL_markstack_ptr--; |
ac27b0f5 | 2613 | if (flags & 8) |
3280af22 | 2614 | PL_retstack_ix--; |
84902520 | 2615 | if (flags & 16) |
3280af22 | 2616 | PL_scopestack_ix -= 1; |
84902520 TB |
2617 | if (flags & 64) |
2618 | SvREFCNT_dec(sv); | |
533c011a | 2619 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2620 | |
3280af22 NIS |
2621 | PL_Sv = tSv; /* Restore global temporaries. */ |
2622 | PL_Xpv = tXpv; | |
53bb94e2 | 2623 | return; |
79072805 | 2624 | } |
4e35701f NIS |
2625 | |
2626 | ||
51371543 | 2627 | static void |
acfe0abc | 2628 | restore_magic(pTHX_ void *p) |
51371543 | 2629 | { |
48944bdf | 2630 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2631 | SV* sv = mgs->mgs_sv; |
2632 | ||
2633 | if (!sv) | |
2634 | return; | |
2635 | ||
2636 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2637 | { | |
f9701176 NC |
2638 | #ifdef PERL_COPY_ON_WRITE |
2639 | /* While magic was saved (and off) sv_setsv may well have seen | |
2640 | this SV as a prime candidate for COW. */ | |
2641 | if (SvIsCOW(sv)) | |
2642 | sv_force_normal(sv); | |
2643 | #endif | |
2644 | ||
51371543 GS |
2645 | if (mgs->mgs_flags) |
2646 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2647 | else | |
2648 | mg_magical(sv); | |
2649 | if (SvGMAGICAL(sv)) | |
2650 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2651 | } | |
2652 | ||
2653 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2654 | ||
2655 | /* If we're still on top of the stack, pop us off. (That condition | |
2656 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2657 | * if it's being called via leave_scope.) | |
2658 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2659 | * may leave alloc gunk on the savestack, and some code | |
2660 | * (e.g. sighandler) doesn't expect that... | |
2661 | */ | |
2662 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2663 | { | |
2664 | I32 popval = SSPOPINT; | |
c76ac1ee | 2665 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2666 | PL_savestack_ix -= 2; |
2667 | popval = SSPOPINT; | |
2668 | assert(popval == SAVEt_ALLOC); | |
2669 | popval = SSPOPINT; | |
2670 | PL_savestack_ix -= popval; | |
2671 | } | |
2672 | ||
2673 | } | |
2674 | ||
2675 | static void | |
acfe0abc | 2676 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2677 | { |
51371543 GS |
2678 | U32 flags = *(U32*)p; |
2679 | ||
2680 | if (flags & 1) | |
2681 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2682 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2683 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2684 | if (flags & 64) |
2685 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2686 | #endif |
51371543 | 2687 | } |
1018e26f NIS |
2688 | |
2689 |