Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4bb101f2 JH |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
4 | * 2000, 2001, 2002, 2003, 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)); | |
463ee0b2 | 132 | |
455ece5e | 133 | save_magic(mgs_ix, sv); |
463ee0b2 | 134 | |
ff76feab AMS |
135 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
136 | list of magic. svt_get() may delete the current entry, add new | |
137 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
138 | ||
139 | newmg = cur = head = mg = SvMAGIC(sv); | |
140 | while (mg) { | |
141 | MGVTBL *vtbl = mg->mg_virtual; | |
142 | ||
2b260de0 | 143 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 144 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 YST |
145 | |
146 | /* guard against sv having been freed */ | |
147 | if (SvTYPE(sv) == SVTYPEMASK) { | |
148 | Perl_croak(aTHX_ "Tied variable freed while still in use"); | |
149 | } | |
58f82c5c DM |
150 | /* guard against magic having been deleted - eg FETCH calling |
151 | * untie */ | |
152 | if (!SvMAGIC(sv)) | |
153 | break; | |
b77f7d40 | 154 | |
ff76feab AMS |
155 | /* Don't restore the flags for this entry if it was deleted. */ |
156 | if (mg->mg_flags & MGf_GSKIP) | |
157 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 158 | } |
ff76feab AMS |
159 | |
160 | mg = mg->mg_moremagic; | |
161 | ||
162 | if (new) { | |
163 | /* Have we finished with the new entries we saw? Start again | |
164 | where we left off (unless there are more new entries). */ | |
165 | if (mg == head) { | |
166 | new = 0; | |
167 | mg = cur; | |
168 | head = newmg; | |
169 | } | |
170 | } | |
171 | ||
172 | /* Were any new entries added? */ | |
173 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
174 | new = 1; | |
175 | cur = mg; | |
176 | mg = newmg; | |
760ac839 | 177 | } |
79072805 | 178 | } |
463ee0b2 | 179 | |
acfe0abc | 180 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
181 | return 0; |
182 | } | |
183 | ||
954c1994 GS |
184 | /* |
185 | =for apidoc mg_set | |
186 | ||
187 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
188 | ||
189 | =cut | |
190 | */ | |
191 | ||
79072805 | 192 | int |
864dbfa3 | 193 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 194 | { |
8fb26106 | 195 | I32 mgs_ix; |
79072805 | 196 | MAGIC* mg; |
463ee0b2 LW |
197 | MAGIC* nextmg; |
198 | ||
455ece5e AD |
199 | mgs_ix = SSNEW(sizeof(MGS)); |
200 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
201 | |
202 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 203 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 204 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
205 | if (mg->mg_flags & MGf_GSKIP) { |
206 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 207 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 208 | } |
2b260de0 | 209 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 210 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 211 | } |
463ee0b2 | 212 | |
acfe0abc | 213 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
214 | return 0; |
215 | } | |
216 | ||
954c1994 GS |
217 | /* |
218 | =for apidoc mg_length | |
219 | ||
220 | Report on the SV's length. See C<sv_magic>. | |
221 | ||
222 | =cut | |
223 | */ | |
224 | ||
79072805 | 225 | U32 |
864dbfa3 | 226 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
227 | { |
228 | MAGIC* mg; | |
463ee0b2 | 229 | STRLEN len; |
463ee0b2 | 230 | |
79072805 LW |
231 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
232 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 233 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 234 | I32 mgs_ix; |
48e43a1c | 235 | |
455ece5e AD |
236 | mgs_ix = SSNEW(sizeof(MGS)); |
237 | save_magic(mgs_ix, sv); | |
a0d0e21e | 238 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 239 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 240 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
241 | return len; |
242 | } | |
243 | } | |
244 | ||
7719e241 | 245 | if (DO_UTF8(sv)) |
5636d518 DB |
246 | { |
247 | U8 *s = (U8*)SvPV(sv, len); | |
248 | len = Perl_utf8_length(aTHX_ s, s + len); | |
249 | } | |
250 | else | |
251 | (void)SvPV(sv, len); | |
463ee0b2 | 252 | return len; |
79072805 LW |
253 | } |
254 | ||
8fb26106 | 255 | I32 |
864dbfa3 | 256 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
257 | { |
258 | MAGIC* mg; | |
259 | I32 len; | |
ac27b0f5 | 260 | |
93965878 NIS |
261 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
262 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 263 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 264 | I32 mgs_ix; |
455ece5e AD |
265 | |
266 | mgs_ix = SSNEW(sizeof(MGS)); | |
267 | save_magic(mgs_ix, sv); | |
93965878 | 268 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 269 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 270 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
271 | return len; |
272 | } | |
273 | } | |
274 | ||
275 | switch(SvTYPE(sv)) { | |
276 | case SVt_PVAV: | |
277 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
278 | return len; | |
279 | case SVt_PVHV: | |
280 | /* FIXME */ | |
281 | default: | |
cea2e8a9 | 282 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
283 | break; |
284 | } | |
285 | return 0; | |
286 | } | |
287 | ||
954c1994 GS |
288 | /* |
289 | =for apidoc mg_clear | |
290 | ||
291 | Clear something magical that the SV represents. See C<sv_magic>. | |
292 | ||
293 | =cut | |
294 | */ | |
295 | ||
79072805 | 296 | int |
864dbfa3 | 297 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 298 | { |
8fb26106 | 299 | I32 mgs_ix; |
79072805 | 300 | MAGIC* mg; |
463ee0b2 | 301 | |
455ece5e AD |
302 | mgs_ix = SSNEW(sizeof(MGS)); |
303 | save_magic(mgs_ix, sv); | |
463ee0b2 | 304 | |
79072805 LW |
305 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
306 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e | 307 | /* omit GSKIP -- never set here */ |
727405f8 | 308 | |
2b260de0 | 309 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 310 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 311 | } |
463ee0b2 | 312 | |
acfe0abc | 313 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
314 | return 0; |
315 | } | |
316 | ||
954c1994 GS |
317 | /* |
318 | =for apidoc mg_find | |
319 | ||
320 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
321 | ||
322 | =cut | |
323 | */ | |
324 | ||
93a17b20 | 325 | MAGIC* |
864dbfa3 | 326 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
327 | { |
328 | MAGIC* mg; | |
3f8f4626 DC |
329 | if (!sv) |
330 | return 0; | |
93a17b20 LW |
331 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
332 | if (mg->mg_type == type) | |
333 | return mg; | |
334 | } | |
335 | return 0; | |
336 | } | |
337 | ||
954c1994 GS |
338 | /* |
339 | =for apidoc mg_copy | |
340 | ||
341 | Copies the magic from one SV to another. See C<sv_magic>. | |
342 | ||
343 | =cut | |
344 | */ | |
345 | ||
79072805 | 346 | int |
864dbfa3 | 347 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 348 | { |
463ee0b2 | 349 | int count = 0; |
79072805 | 350 | MAGIC* mg; |
463ee0b2 | 351 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 NIS |
352 | MGVTBL* vtbl = mg->mg_virtual; |
353 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ | |
354 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
355 | } | |
356 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 357 | sv_magic(nsv, |
14befaf4 DM |
358 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
359 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
360 | ? sv : mg->mg_obj, | |
33c27489 | 361 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 362 | count++; |
79072805 | 363 | } |
79072805 | 364 | } |
463ee0b2 | 365 | return count; |
79072805 LW |
366 | } |
367 | ||
954c1994 GS |
368 | /* |
369 | =for apidoc mg_free | |
370 | ||
371 | Free any magic storage used by the SV. See C<sv_magic>. | |
372 | ||
373 | =cut | |
374 | */ | |
375 | ||
79072805 | 376 | int |
864dbfa3 | 377 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
378 | { |
379 | MAGIC* mg; | |
380 | MAGIC* moremagic; | |
381 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
382 | MGVTBL* vtbl = mg->mg_virtual; | |
383 | moremagic = mg->mg_moremagic; | |
2b260de0 | 384 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 385 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 386 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 | 387 | if (mg->mg_len > 0) |
88e89b8a | 388 | Safefree(mg->mg_ptr); |
565764a8 | 389 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 390 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 391 | } |
b881518d JH |
392 | if (mg->mg_flags & MGf_REFCOUNTED) |
393 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
394 | Safefree(mg); |
395 | } | |
396 | SvMAGIC(sv) = 0; | |
397 | return 0; | |
398 | } | |
399 | ||
d460ef45 | 400 | |
79072805 LW |
401 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
402 | #include <signal.h> | |
403 | #endif | |
404 | ||
942e002e | 405 | U32 |
864dbfa3 | 406 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 407 | { |
6cef1e77 | 408 | register REGEXP *rx; |
6cef1e77 | 409 | |
aaa362c4 | 410 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
411 | if (mg->mg_obj) /* @+ */ |
412 | return rx->nparens; | |
413 | else /* @- */ | |
414 | return rx->lastparen; | |
415 | } | |
ac27b0f5 | 416 | |
942e002e | 417 | return (U32)-1; |
6cef1e77 IZ |
418 | } |
419 | ||
420 | int | |
864dbfa3 | 421 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 422 | { |
6cef1e77 | 423 | register I32 paren; |
cf93c79d | 424 | register I32 s; |
6cef1e77 IZ |
425 | register I32 i; |
426 | register REGEXP *rx; | |
cf93c79d | 427 | I32 t; |
6cef1e77 | 428 | |
aaa362c4 | 429 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
430 | paren = mg->mg_len; |
431 | if (paren < 0) | |
432 | return 0; | |
eb160463 | 433 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
434 | (s = rx->startp[paren]) != -1 && |
435 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
436 | { |
437 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 438 | i = t; |
6cef1e77 | 439 | else /* @- */ |
cf93c79d | 440 | i = s; |
727405f8 | 441 | |
a30b2f1f | 442 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b | 443 | char *b = rx->subbeg; |
0064a8a9 JH |
444 | if (b) |
445 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 446 | } |
0064a8a9 JH |
447 | |
448 | sv_setiv(sv, i); | |
6cef1e77 IZ |
449 | } |
450 | } | |
451 | return 0; | |
452 | } | |
453 | ||
e4b89193 | 454 | int |
a29d06ed MG |
455 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
456 | { | |
a29d06ed | 457 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
458 | /* NOT REACHED */ |
459 | return 0; | |
a29d06ed MG |
460 | } |
461 | ||
93a17b20 | 462 | U32 |
864dbfa3 | 463 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
464 | { |
465 | register I32 paren; | |
93a17b20 | 466 | register I32 i; |
d9f97599 | 467 | register REGEXP *rx; |
a197cbdd | 468 | I32 s1, t1; |
93a17b20 LW |
469 | |
470 | switch (*mg->mg_ptr) { | |
471 | case '1': case '2': case '3': case '4': | |
472 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 473 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 474 | |
ffc61ed2 | 475 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 476 | getparen: |
eb160463 | 477 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
478 | (s1 = rx->startp[paren]) != -1 && |
479 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 480 | { |
cf93c79d | 481 | i = t1 - s1; |
a197cbdd | 482 | getlen: |
a30b2f1f | 483 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
ffc61ed2 | 484 | char *s = rx->subbeg + s1; |
a197cbdd | 485 | char *send = rx->subbeg + t1; |
ffc61ed2 | 486 | |
6d5fa195 | 487 | i = t1 - s1; |
60425c38 JH |
488 | if (is_utf8_string((U8*)s, i)) |
489 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 490 | } |
ffc61ed2 | 491 | if (i < 0) |
0844c848 | 492 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 493 | return i; |
93a17b20 | 494 | } |
235bddc8 NIS |
495 | else { |
496 | if (ckWARN(WARN_UNINITIALIZED)) | |
497 | report_uninit(); | |
498 | } | |
499 | } | |
500 | else { | |
501 | if (ckWARN(WARN_UNINITIALIZED)) | |
502 | report_uninit(); | |
93a17b20 | 503 | } |
748a9306 | 504 | return 0; |
93a17b20 | 505 | case '+': |
aaa362c4 | 506 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 507 | paren = rx->lastparen; |
13f57bf8 CS |
508 | if (paren) |
509 | goto getparen; | |
93a17b20 | 510 | } |
748a9306 | 511 | return 0; |
a01268b5 JH |
512 | case '\016': /* ^N */ |
513 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
514 | paren = rx->lastcloseparen; | |
515 | if (paren) | |
516 | goto getparen; | |
517 | } | |
518 | return 0; | |
93a17b20 | 519 | case '`': |
aaa362c4 | 520 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
521 | if (rx->startp[0] != -1) { |
522 | i = rx->startp[0]; | |
a197cbdd GS |
523 | if (i > 0) { |
524 | s1 = 0; | |
525 | t1 = i; | |
526 | goto getlen; | |
527 | } | |
93a17b20 | 528 | } |
93a17b20 | 529 | } |
748a9306 | 530 | return 0; |
93a17b20 | 531 | case '\'': |
aaa362c4 | 532 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
533 | if (rx->endp[0] != -1) { |
534 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
535 | if (i > 0) { |
536 | s1 = rx->endp[0]; | |
537 | t1 = rx->sublen; | |
538 | goto getlen; | |
539 | } | |
93a17b20 | 540 | } |
93a17b20 | 541 | } |
748a9306 | 542 | return 0; |
93a17b20 LW |
543 | } |
544 | magic_get(sv,mg); | |
2d8e6c8d GS |
545 | if (!SvPOK(sv) && SvNIOK(sv)) { |
546 | STRLEN n_a; | |
547 | sv_2pv(sv, &n_a); | |
548 | } | |
93a17b20 LW |
549 | if (SvPOK(sv)) |
550 | return SvCUR(sv); | |
551 | return 0; | |
552 | } | |
553 | ||
79072805 | 554 | int |
864dbfa3 | 555 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
556 | { |
557 | register I32 paren; | |
35272f84 | 558 | register char *s = NULL; |
79072805 | 559 | register I32 i; |
d9f97599 | 560 | register REGEXP *rx; |
79072805 LW |
561 | |
562 | switch (*mg->mg_ptr) { | |
748a9306 | 563 | case '\001': /* ^A */ |
3280af22 | 564 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 565 | break; |
49460fe6 NIS |
566 | case '\003': /* ^C */ |
567 | sv_setiv(sv, (IV)PL_minus_c); | |
568 | break; | |
569 | ||
79072805 | 570 | case '\004': /* ^D */ |
aea4f609 | 571 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 572 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 573 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 574 | #endif |
79072805 | 575 | break; |
28f23441 | 576 | case '\005': /* ^E */ |
0a378802 | 577 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 578 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
579 | { |
580 | char msg[256]; | |
727405f8 | 581 | |
0a378802 | 582 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 583 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 584 | } |
727405f8 | 585 | #else |
28f23441 | 586 | #ifdef VMS |
0a378802 JH |
587 | { |
588 | # include <descrip.h> | |
589 | # include <starlet.h> | |
590 | char msg[255]; | |
591 | $DESCRIPTOR(msgdsc,msg); | |
592 | sv_setnv(sv,(NV) vaxc$errno); | |
593 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
594 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
595 | else | |
596 | sv_setpv(sv,""); | |
597 | } | |
28f23441 | 598 | #else |
88e89b8a | 599 | #ifdef OS2 |
0a378802 JH |
600 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
601 | sv_setnv(sv, (NV)errno); | |
602 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
603 | } else { | |
604 | if (errno != errno_isOS2) { | |
605 | int tmp = _syserrno(); | |
606 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
607 | Perl_rc = tmp; | |
608 | } | |
609 | sv_setnv(sv, (NV)Perl_rc); | |
610 | sv_setpv(sv, os2error(Perl_rc)); | |
611 | } | |
88e89b8a | 612 | #else |
22fae026 | 613 | #ifdef WIN32 |
0a378802 JH |
614 | { |
615 | DWORD dwErr = GetLastError(); | |
616 | sv_setnv(sv, (NV)dwErr); | |
617 | if (dwErr) | |
618 | { | |
619 | PerlProc_GetOSError(sv, dwErr); | |
620 | } | |
621 | else | |
622 | sv_setpv(sv, ""); | |
623 | SetLastError(dwErr); | |
624 | } | |
22fae026 | 625 | #else |
f6c8f21d RGS |
626 | { |
627 | int saveerrno = errno; | |
628 | sv_setnv(sv, (NV)errno); | |
629 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
630 | errno = saveerrno; | |
631 | } | |
28f23441 | 632 | #endif |
88e89b8a | 633 | #endif |
22fae026 | 634 | #endif |
cd39f2b6 | 635 | #endif |
0a378802 JH |
636 | SvNOK_on(sv); /* what a wonderful hack! */ |
637 | } | |
638 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
639 | sv_setsv(sv, PL_encoding); | |
640 | break; | |
79072805 | 641 | case '\006': /* ^F */ |
3280af22 | 642 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 643 | break; |
a0d0e21e | 644 | case '\010': /* ^H */ |
3280af22 | 645 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 646 | break; |
9d116dd7 | 647 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
648 | if (PL_inplace) |
649 | sv_setpv(sv, PL_inplace); | |
79072805 | 650 | else |
3280af22 | 651 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 652 | break; |
ac27b0f5 NIS |
653 | case '\017': /* ^O & ^OPEN */ |
654 | if (*(mg->mg_ptr+1) == '\0') | |
655 | sv_setpv(sv, PL_osname); | |
656 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
657 | if (!PL_compiling.cop_io) | |
658 | sv_setsv(sv, &PL_sv_undef); | |
659 | else { | |
660 | sv_setsv(sv, PL_compiling.cop_io); | |
661 | } | |
662 | } | |
28f23441 | 663 | break; |
79072805 | 664 | case '\020': /* ^P */ |
3280af22 | 665 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 666 | break; |
fb73857a | 667 | case '\023': /* ^S */ |
4ffa73a3 | 668 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 669 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 670 | (void)SvOK_off(sv); |
3280af22 | 671 | else if (PL_in_eval) |
6dc8a9e4 | 672 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
673 | else |
674 | sv_setiv(sv, 0); | |
d58bf5aa | 675 | } |
fb73857a | 676 | break; |
79072805 | 677 | case '\024': /* ^T */ |
7c36658b | 678 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 679 | #ifdef BIG_TIME |
7c36658b | 680 | sv_setnv(sv, PL_basetime); |
88e89b8a | 681 | #else |
7c36658b | 682 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 683 | #endif |
7c36658b MS |
684 | } |
685 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
686 | sv_setiv(sv, PL_tainting |
687 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
688 | : 0); | |
7c36658b | 689 | break; |
a05d7ebb JH |
690 | case '\025': /* $^UNICODE */ |
691 | if (strEQ(mg->mg_ptr, "\025NICODE")) | |
692 | sv_setuv(sv, (UV) PL_unicode); | |
fde18df1 JH |
693 | break; |
694 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
695 | if (*(mg->mg_ptr+1) == '\0') |
696 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 697 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
698 | if (PL_compiling.cop_warnings == pWARN_NONE || |
699 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
700 | { |
701 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
702 | } | |
d3a7d8c7 | 703 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
704 | /* Get the bit mask for $warnings::Bits{all}, because |
705 | * it could have been extended by warnings::register */ | |
706 | SV **bits_all; | |
707 | HV *bits=get_hv("warnings::Bits", FALSE); | |
708 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
709 | sv_setsv(sv, *bits_all); | |
710 | } | |
711 | else { | |
712 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
713 | } | |
ac27b0f5 | 714 | } |
4438c4b7 JH |
715 | else { |
716 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 717 | } |
d3a7d8c7 | 718 | SvPOK_only(sv); |
4438c4b7 | 719 | } |
79072805 LW |
720 | break; |
721 | case '1': case '2': case '3': case '4': | |
722 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 723 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
724 | I32 s1, t1; |
725 | ||
a863c7d1 MB |
726 | /* |
727 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
728 | * XXX Does the new way break anything? | |
729 | */ | |
ffc61ed2 | 730 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 731 | getparen: |
eb160463 | 732 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
733 | (s1 = rx->startp[paren]) != -1 && |
734 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 735 | { |
cf93c79d IZ |
736 | i = t1 - s1; |
737 | s = rx->subbeg + s1; | |
01ec43d0 | 738 | if (!rx->subbeg) |
c2e66d9e GS |
739 | break; |
740 | ||
13f57bf8 | 741 | getrx: |
748a9306 | 742 | if (i >= 0) { |
cf93c79d | 743 | sv_setpvn(sv, s, i); |
a30b2f1f | 744 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
745 | SvUTF8_on(sv); |
746 | else | |
747 | SvUTF8_off(sv); | |
e9814ee1 HS |
748 | if (PL_tainting) { |
749 | if (RX_MATCH_TAINTED(rx)) { | |
750 | MAGIC* mg = SvMAGIC(sv); | |
751 | MAGIC* mgt; | |
752 | PL_tainted = 1; | |
753 | SvMAGIC(sv) = mg->mg_moremagic; | |
754 | SvTAINT(sv); | |
755 | if ((mgt = SvMAGIC(sv))) { | |
756 | mg->mg_moremagic = mgt; | |
757 | SvMAGIC(sv) = mg; | |
758 | } | |
759 | } else | |
760 | SvTAINTED_off(sv); | |
761 | } | |
748a9306 LW |
762 | break; |
763 | } | |
79072805 | 764 | } |
79072805 | 765 | } |
3280af22 | 766 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
767 | break; |
768 | case '+': | |
aaa362c4 | 769 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 770 | paren = rx->lastparen; |
a0d0e21e LW |
771 | if (paren) |
772 | goto getparen; | |
79072805 | 773 | } |
3280af22 | 774 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 775 | break; |
a01268b5 JH |
776 | case '\016': /* ^N */ |
777 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
778 | paren = rx->lastcloseparen; | |
779 | if (paren) | |
780 | goto getparen; | |
781 | } | |
782 | sv_setsv(sv,&PL_sv_undef); | |
783 | break; | |
79072805 | 784 | case '`': |
aaa362c4 | 785 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
786 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
787 | i = rx->startp[0]; | |
13f57bf8 | 788 | goto getrx; |
79072805 | 789 | } |
79072805 | 790 | } |
3280af22 | 791 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
792 | break; |
793 | case '\'': | |
aaa362c4 | 794 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
795 | if (rx->subbeg && rx->endp[0] != -1) { |
796 | s = rx->subbeg + rx->endp[0]; | |
797 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 798 | goto getrx; |
79072805 | 799 | } |
79072805 | 800 | } |
3280af22 | 801 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
802 | break; |
803 | case '.': | |
804 | #ifndef lint | |
3280af22 | 805 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 806 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
807 | } |
808 | #endif | |
809 | break; | |
810 | case '?': | |
809a5acc | 811 | { |
809a5acc | 812 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 813 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
814 | LvTARGOFF(sv) = PL_statusvalue; |
815 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 816 | #endif |
809a5acc | 817 | } |
79072805 LW |
818 | break; |
819 | case '^': | |
0daa599b RGS |
820 | if (GvIOp(PL_defoutgv)) |
821 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
822 | if (s) |
823 | sv_setpv(sv,s); | |
824 | else { | |
3280af22 | 825 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
826 | sv_catpv(sv,"_TOP"); |
827 | } | |
828 | break; | |
829 | case '~': | |
0daa599b RGS |
830 | if (GvIOp(PL_defoutgv)) |
831 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 832 | if (!s) |
3280af22 | 833 | s = GvENAME(PL_defoutgv); |
79072805 LW |
834 | sv_setpv(sv,s); |
835 | break; | |
836 | #ifndef lint | |
837 | case '=': | |
0daa599b RGS |
838 | if (GvIOp(PL_defoutgv)) |
839 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
840 | break; |
841 | case '-': | |
0daa599b RGS |
842 | if (GvIOp(PL_defoutgv)) |
843 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
844 | break; |
845 | case '%': | |
0daa599b RGS |
846 | if (GvIOp(PL_defoutgv)) |
847 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 LW |
848 | break; |
849 | #endif | |
850 | case ':': | |
851 | break; | |
852 | case '/': | |
853 | break; | |
854 | case '[': | |
3280af22 | 855 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
856 | break; |
857 | case '|': | |
0daa599b RGS |
858 | if (GvIOp(PL_defoutgv)) |
859 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
860 | break; |
861 | case ',': | |
79072805 LW |
862 | break; |
863 | case '\\': | |
b2ce0fda | 864 | if (PL_ors_sv) |
f28098ff | 865 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
866 | break; |
867 | case '#': | |
3280af22 | 868 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
869 | break; |
870 | case '!': | |
a5f75d66 | 871 | #ifdef VMS |
65202027 | 872 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 873 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 874 | #else |
88e89b8a | 875 | { |
876 | int saveerrno = errno; | |
65202027 | 877 | sv_setnv(sv, (NV)errno); |
88e89b8a | 878 | #ifdef OS2 |
ed344e4f IZ |
879 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
880 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 881 | else |
a5f75d66 | 882 | #endif |
2304df62 | 883 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 884 | errno = saveerrno; |
885 | } | |
886 | #endif | |
946ec16e | 887 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
888 | break; |
889 | case '<': | |
3280af22 | 890 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
891 | break; |
892 | case '>': | |
3280af22 | 893 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
894 | break; |
895 | case '(': | |
3280af22 | 896 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 897 | #ifdef HAS_GETGROUPS |
785fb66b | 898 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 899 | #endif |
79072805 LW |
900 | goto add_groups; |
901 | case ')': | |
3280af22 | 902 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 903 | #ifdef HAS_GETGROUPS |
785fb66b | 904 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 905 | #endif |
79072805 | 906 | add_groups: |
79072805 | 907 | #ifdef HAS_GETGROUPS |
79072805 | 908 | { |
a0d0e21e | 909 | Groups_t gary[NGROUPS]; |
79072805 | 910 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 911 | while (--i >= 0) |
785fb66b | 912 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
913 | } |
914 | #endif | |
155aba94 | 915 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 | 916 | break; |
cd39f2b6 | 917 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
918 | case '0': |
919 | break; | |
cd39f2b6 | 920 | #endif |
79072805 | 921 | } |
a0d0e21e | 922 | return 0; |
79072805 LW |
923 | } |
924 | ||
925 | int | |
864dbfa3 | 926 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
927 | { |
928 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
929 | ||
930 | if (uf && uf->uf_val) | |
24f81a43 | 931 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
932 | return 0; |
933 | } | |
934 | ||
935 | int | |
864dbfa3 | 936 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
937 | { |
938 | register char *s; | |
88e89b8a | 939 | char *ptr; |
5aabfad6 | 940 | STRLEN len, klen; |
1e422769 | 941 | |
a0d0e21e | 942 | s = SvPV(sv,len); |
5aabfad6 | 943 | ptr = MgPV(mg,klen); |
88e89b8a | 944 | my_setenv(ptr, s); |
1e422769 | 945 | |
a0d0e21e LW |
946 | #ifdef DYNAMIC_ENV_FETCH |
947 | /* We just undefd an environment var. Is a replacement */ | |
948 | /* waiting in the wings? */ | |
949 | if (!len) { | |
5aabfad6 | 950 | SV **valp; |
6b88bc9c | 951 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 952 | s = SvPV(*valp, len); |
a0d0e21e LW |
953 | } |
954 | #endif | |
1e422769 | 955 | |
39e571d4 | 956 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
957 | /* And you'll never guess what the dog had */ |
958 | /* in its mouth... */ | |
3280af22 | 959 | if (PL_tainting) { |
1e422769 | 960 | MgTAINTEDDIR_off(mg); |
961 | #ifdef VMS | |
5aabfad6 | 962 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 963 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 964 | Stat_t sbuf; |
1e422769 | 965 | int i = 0, j = 0; |
966 | ||
967 | do { /* DCL$PATH may be a search list */ | |
968 | while (1) { /* as may dev portion of any element */ | |
969 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
970 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
971 | cando_by_name(S_IWUSR,0,elt) ) { | |
972 | MgTAINTEDDIR_on(mg); | |
973 | return 0; | |
974 | } | |
975 | } | |
976 | if ((cp = strchr(elt, ':')) != Nullch) | |
977 | *cp = '\0'; | |
978 | if (my_trnlnm(elt, eltbuf, j++)) | |
979 | elt = eltbuf; | |
980 | else | |
981 | break; | |
982 | } | |
983 | j = 0; | |
984 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
985 | } | |
986 | #endif /* VMS */ | |
5aabfad6 | 987 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 988 | char *strend = s + len; |
463ee0b2 LW |
989 | |
990 | while (s < strend) { | |
96827780 | 991 | char tmpbuf[256]; |
c623ac67 | 992 | Stat_t st; |
5f74f29c | 993 | I32 i; |
96827780 | 994 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 995 | s, strend, ':', &i); |
463ee0b2 | 996 | s++; |
96827780 MB |
997 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
998 | || *tmpbuf != '/' | |
c6ed36e1 | 999 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 1000 | MgTAINTEDDIR_on(mg); |
1e422769 | 1001 | return 0; |
1002 | } | |
463ee0b2 | 1003 | } |
79072805 LW |
1004 | } |
1005 | } | |
39e571d4 | 1006 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1007 | |
79072805 LW |
1008 | return 0; |
1009 | } | |
1010 | ||
1011 | int | |
864dbfa3 | 1012 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1013 | { |
2d8e6c8d GS |
1014 | STRLEN n_a; |
1015 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
1016 | return 0; |
1017 | } | |
1018 | ||
88e89b8a | 1019 | int |
864dbfa3 | 1020 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1021 | { |
1022 | #if defined(VMS) | |
cea2e8a9 | 1023 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1024 | #else |
3280af22 | 1025 | if (PL_localizing) { |
fb73857a | 1026 | HE* entry; |
2d8e6c8d | 1027 | STRLEN n_a; |
fb73857a | 1028 | magic_clear_all_env(sv,mg); |
1029 | hv_iterinit((HV*)sv); | |
155aba94 | 1030 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1031 | I32 keylen; |
1032 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 1033 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 1034 | } |
1035 | } | |
1036 | #endif | |
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | int | |
864dbfa3 | 1041 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1042 | { |
2f42fcb0 | 1043 | #ifndef PERL_MICRO |
ed79a026 | 1044 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 1045 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1046 | #else |
4efc5df6 | 1047 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1048 | PerlEnv_clearenv(); |
4efc5df6 GS |
1049 | # else |
1050 | # ifdef USE_ENVIRON_ARRAY | |
1051 | # if defined(USE_ITHREADS) | |
1052 | /* only the parent thread can clobber the process environment */ | |
1053 | if (PL_curinterp == aTHX) | |
1054 | # endif | |
1055 | { | |
1056 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
1057 | I32 i; |
1058 | ||
3280af22 | 1059 | if (environ == PL_origenviron) |
f2517201 | 1060 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1061 | else |
1062 | for (i = 0; environ[i]; i++) | |
f2517201 | 1063 | safesysfree(environ[i]); |
4efc5df6 | 1064 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1065 | |
66b1d557 | 1066 | environ[0] = Nullch; |
4efc5df6 GS |
1067 | } |
1068 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 | 1069 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
2f42fcb0 JH |
1070 | #endif /* VMS || EPOC */ |
1071 | #endif /* !PERL_MICRO */ | |
3e3baf6d | 1072 | return 0; |
66b1d557 HM |
1073 | } |
1074 | ||
2e34cc90 CL |
1075 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1076 | static int sig_handlers_initted = 0; | |
1077 | #endif | |
7719e241 | 1078 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1079 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1080 | #endif | |
2e34cc90 CL |
1081 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1082 | static int sig_defaulting[SIG_SIZE]; | |
1083 | #endif | |
85b332e2 | 1084 | |
64ca3a65 | 1085 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1086 | #ifdef HAS_SIGPROCMASK |
1087 | static void | |
1088 | restore_sigmask(pTHX_ SV *save_sv) | |
1089 | { | |
1090 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); | |
1091 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); | |
1092 | } | |
1093 | #endif | |
66b1d557 | 1094 | int |
864dbfa3 | 1095 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1096 | { |
1097 | I32 i; | |
2d8e6c8d | 1098 | STRLEN n_a; |
88e89b8a | 1099 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1100 | i = whichsig(MgPV(mg,n_a)); |
e02bfb16 | 1101 | if (i > 0) { |
22c35a8c GS |
1102 | if(PL_psig_ptr[i]) |
1103 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1104 | else { |
85b332e2 | 1105 | Sighandler_t sigstate; |
2e34cc90 | 1106 | sigstate = rsignal_state(i); |
23ada85b | 1107 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1108 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1109 | #endif | |
1110 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1111 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1112 | #endif |
88e89b8a | 1113 | /* cache state so we don't fetch it again */ |
ff68c719 | 1114 | if(sigstate == SIG_IGN) |
88e89b8a | 1115 | sv_setpv(sv,"IGNORE"); |
1116 | else | |
3280af22 | 1117 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1118 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1119 | SvTEMP_off(sv); |
1120 | } | |
1121 | } | |
1122 | return 0; | |
1123 | } | |
1124 | int | |
864dbfa3 | 1125 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1126 | { |
2d4fcd5e AJ |
1127 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1128 | * refactoring might be in order. | |
1129 | */ | |
1130 | register char *s; | |
2d8e6c8d | 1131 | STRLEN n_a; |
2d4fcd5e AJ |
1132 | SV* to_dec; |
1133 | s = MgPV(mg,n_a); | |
1134 | if (*s == '_') { | |
1135 | SV** svp; | |
1136 | if (strEQ(s,"__DIE__")) | |
1137 | svp = &PL_diehook; | |
1138 | else if (strEQ(s,"__WARN__")) | |
1139 | svp = &PL_warnhook; | |
1140 | else | |
1141 | Perl_croak(aTHX_ "No such hook: %s", s); | |
1142 | if (*svp) { | |
1143 | to_dec = *svp; | |
1144 | *svp = 0; | |
1145 | SvREFCNT_dec(to_dec); | |
1146 | } | |
1147 | } | |
1148 | else { | |
1149 | I32 i; | |
1150 | /* Are we clearing a signal entry? */ | |
1151 | i = whichsig(s); | |
e02bfb16 | 1152 | if (i > 0) { |
2d4fcd5e AJ |
1153 | #ifdef HAS_SIGPROCMASK |
1154 | sigset_t set, save; | |
1155 | SV* save_sv; | |
1156 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1157 | sigemptyset(&set); | |
1158 | sigaddset(&set,i); | |
1159 | sigprocmask(SIG_BLOCK, &set, &save); | |
1160 | ENTER; | |
1161 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1162 | SAVEFREESV(save_sv); | |
1163 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1164 | #endif | |
1165 | PERL_ASYNC_CHECK(); | |
1166 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
1167 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1168 | #endif | |
1169 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1170 | sig_defaulting[i] = 1; | |
5c1546dc | 1171 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1172 | #else |
1173 | (void)rsignal(i, SIG_DFL); | |
1174 | #endif | |
1175 | if(PL_psig_name[i]) { | |
1176 | SvREFCNT_dec(PL_psig_name[i]); | |
1177 | PL_psig_name[i]=0; | |
1178 | } | |
1179 | if(PL_psig_ptr[i]) { | |
1180 | to_dec=PL_psig_ptr[i]; | |
1181 | PL_psig_ptr[i]=0; | |
1182 | LEAVE; | |
1183 | SvREFCNT_dec(to_dec); | |
1184 | } | |
1185 | else | |
1186 | LEAVE; | |
1187 | } | |
88e89b8a | 1188 | } |
1189 | return 0; | |
1190 | } | |
3d37d572 | 1191 | |
0a8e0eff NIS |
1192 | void |
1193 | Perl_raise_signal(pTHX_ int sig) | |
1194 | { | |
1195 | /* Set a flag to say this signal is pending */ | |
1196 | PL_psig_pend[sig]++; | |
1197 | /* And one to say _a_ signal is pending */ | |
1198 | PL_sig_pending = 1; | |
1199 | } | |
1200 | ||
1201 | Signal_t | |
1202 | Perl_csighandler(int sig) | |
1203 | { | |
1018e26f NIS |
1204 | #ifdef PERL_GET_SIG_CONTEXT |
1205 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1206 | #else | |
85b332e2 CL |
1207 | dTHX; |
1208 | #endif | |
23ada85b | 1209 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc | 1210 | (void) rsignal(sig, PL_csighandlerp); |
85b332e2 CL |
1211 | if (sig_ignoring[sig]) return; |
1212 | #endif | |
2e34cc90 | 1213 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1214 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1215 | #ifdef KILL_BY_SIGPRC |
1216 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1217 | #else | |
1218 | exit(1); | |
1219 | #endif | |
1220 | #endif | |
4ffa73a3 JH |
1221 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1222 | /* Call the perl level handler now-- | |
1223 | * with risk we may be in malloc() etc. */ | |
1224 | (*PL_sighandlerp)(sig); | |
1225 | else | |
1226 | Perl_raise_signal(aTHX_ sig); | |
0a8e0eff NIS |
1227 | } |
1228 | ||
2e34cc90 CL |
1229 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1230 | void | |
1231 | Perl_csighandler_init(void) | |
1232 | { | |
1233 | int sig; | |
1234 | if (sig_handlers_initted) return; | |
1235 | ||
1236 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1237 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1238 | dTHX; |
2e34cc90 | 1239 | sig_defaulting[sig] = 1; |
5c1546dc | 1240 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1241 | #endif |
1242 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1243 | sig_ignoring[sig] = 0; | |
1244 | #endif | |
1245 | } | |
1246 | sig_handlers_initted = 1; | |
1247 | } | |
1248 | #endif | |
1249 | ||
0a8e0eff NIS |
1250 | void |
1251 | Perl_despatch_signals(pTHX) | |
1252 | { | |
1253 | int sig; | |
1254 | PL_sig_pending = 0; | |
1255 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1256 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1257 | PERL_BLOCKSIG_ADD(set, sig); |
1258 | PL_psig_pend[sig] = 0; | |
1259 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1260 | (*PL_sighandlerp)(sig); |
25da4428 | 1261 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1262 | } |
1263 | } | |
1264 | } | |
1265 | ||
85e6fe83 | 1266 | int |
864dbfa3 | 1267 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1268 | { |
1269 | register char *s; | |
1270 | I32 i; | |
b7953727 | 1271 | SV** svp = 0; |
2d4fcd5e AJ |
1272 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1273 | * effects (due to closures). We must make sure that the new disposition | |
1274 | * is in place before it is called. | |
1275 | */ | |
1276 | SV* to_dec = 0; | |
e72dc28c | 1277 | STRLEN len; |
2d4fcd5e AJ |
1278 | #ifdef HAS_SIGPROCMASK |
1279 | sigset_t set, save; | |
1280 | SV* save_sv; | |
1281 | #endif | |
a0d0e21e | 1282 | |
e72dc28c | 1283 | s = MgPV(mg,len); |
748a9306 LW |
1284 | if (*s == '_') { |
1285 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1286 | svp = &PL_diehook; |
748a9306 | 1287 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1288 | svp = &PL_warnhook; |
748a9306 | 1289 | else |
cea2e8a9 | 1290 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1291 | i = 0; |
4633a7c4 | 1292 | if (*svp) { |
2d4fcd5e | 1293 | to_dec = *svp; |
4633a7c4 LW |
1294 | *svp = 0; |
1295 | } | |
748a9306 LW |
1296 | } |
1297 | else { | |
1298 | i = whichsig(s); /* ...no, a brick */ | |
e02bfb16 | 1299 | if (i < 0) { |
e476b1b5 | 1300 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1301 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1302 | return 0; |
1303 | } | |
2d4fcd5e AJ |
1304 | #ifdef HAS_SIGPROCMASK |
1305 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1306 | sigemptyset(&set); | |
1307 | sigaddset(&set,i); | |
1308 | sigprocmask(SIG_BLOCK, &set, &save); | |
1309 | ENTER; | |
1310 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1311 | SAVEFREESV(save_sv); | |
1312 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1313 | #endif | |
1314 | PERL_ASYNC_CHECK(); | |
2e34cc90 CL |
1315 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1316 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1317 | #endif | |
23ada85b | 1318 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1319 | sig_ignoring[i] = 0; |
1320 | #endif | |
2e34cc90 | 1321 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
2d4fcd5e | 1322 | sig_defaulting[i] = 0; |
2e34cc90 | 1323 | #endif |
22c35a8c | 1324 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1325 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1326 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1327 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1328 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1329 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1330 | } |
a0d0e21e | 1331 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1332 | if (i) { |
5c1546dc | 1333 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1334 | #ifdef HAS_SIGPROCMASK |
1335 | LEAVE; | |
1336 | #endif | |
1337 | } | |
748a9306 LW |
1338 | else |
1339 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1340 | if(to_dec) |
1341 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1342 | return 0; |
1343 | } | |
e72dc28c | 1344 | s = SvPV_force(sv,len); |
748a9306 | 1345 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1346 | if (i) { |
23ada85b | 1347 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 1348 | sig_ignoring[i] = 1; |
5c1546dc | 1349 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1350 | #else |
ff68c719 | 1351 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1352 | #endif |
2d4fcd5e | 1353 | } |
748a9306 LW |
1354 | } |
1355 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1356 | if (i) | |
2e34cc90 CL |
1357 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1358 | { | |
1359 | sig_defaulting[i] = 1; | |
5c1546dc | 1360 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1361 | } |
1362 | #else | |
ff68c719 | 1363 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1364 | #endif |
748a9306 | 1365 | } |
79072805 | 1366 | else { |
5aabfad6 | 1367 | /* |
1368 | * We should warn if HINT_STRICT_REFS, but without | |
1369 | * access to a known hint bit in a known OP, we can't | |
1370 | * tell whether HINT_STRICT_REFS is in force or not. | |
1371 | */ | |
46fc3d4c | 1372 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1373 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1374 | if (i) |
5c1546dc | 1375 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1376 | else |
1377 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1378 | } |
2d4fcd5e AJ |
1379 | #ifdef HAS_SIGPROCMASK |
1380 | if(i) | |
1381 | LEAVE; | |
1382 | #endif | |
1383 | if(to_dec) | |
1384 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1385 | return 0; |
1386 | } | |
64ca3a65 | 1387 | #endif /* !PERL_MICRO */ |
79072805 LW |
1388 | |
1389 | int | |
864dbfa3 | 1390 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1391 | { |
3280af22 | 1392 | PL_sub_generation++; |
463ee0b2 LW |
1393 | return 0; |
1394 | } | |
1395 | ||
1396 | int | |
864dbfa3 | 1397 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1398 | { |
a0d0e21e | 1399 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1400 | PL_amagic_generation++; |
463ee0b2 | 1401 | |
a0d0e21e LW |
1402 | return 0; |
1403 | } | |
463ee0b2 | 1404 | |
946ec16e | 1405 | int |
864dbfa3 | 1406 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1407 | { |
1408 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1409 | I32 i = 0; |
7719e241 | 1410 | |
6ff81951 | 1411 | if (hv) { |
497b47a8 JH |
1412 | (void) hv_iterinit(hv); |
1413 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1414 | i = HvKEYS(hv); | |
1415 | else { | |
1416 | while (hv_iternext(hv)) | |
1417 | i++; | |
1418 | } | |
6ff81951 GS |
1419 | } |
1420 | ||
1421 | sv_setiv(sv, (IV)i); | |
1422 | return 0; | |
1423 | } | |
1424 | ||
1425 | int | |
864dbfa3 | 1426 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1427 | { |
1428 | if (LvTARG(sv)) { | |
1429 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1430 | } |
1431 | return 0; | |
ac27b0f5 | 1432 | } |
946ec16e | 1433 | |
e336de0d | 1434 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1435 | STATIC int |
cea2e8a9 | 1436 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1437 | { |
1438 | dSP; | |
463ee0b2 | 1439 | |
924508f0 GS |
1440 | PUSHMARK(SP); |
1441 | EXTEND(SP, n); | |
33c27489 | 1442 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1443 | if (n > 1) { |
93965878 | 1444 | if (mg->mg_ptr) { |
565764a8 | 1445 | if (mg->mg_len >= 0) |
79cb57f6 | 1446 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1447 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1448 | PUSHs((SV*)mg->mg_ptr); |
1449 | } | |
14befaf4 | 1450 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1451 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1452 | } |
1453 | } | |
1454 | if (n > 2) { | |
1455 | PUSHs(val); | |
88e89b8a | 1456 | } |
463ee0b2 LW |
1457 | PUTBACK; |
1458 | ||
864dbfa3 | 1459 | return call_method(meth, flags); |
946ec16e | 1460 | } |
1461 | ||
76e3520e | 1462 | STATIC int |
cea2e8a9 | 1463 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1464 | { |
1465 | dSP; | |
463ee0b2 | 1466 | |
a0d0e21e LW |
1467 | ENTER; |
1468 | SAVETMPS; | |
e788e7d3 | 1469 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1470 | |
33c27489 | 1471 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1472 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1473 | } |
463ee0b2 | 1474 | |
d3acc0f7 | 1475 | POPSTACK; |
a0d0e21e LW |
1476 | FREETMPS; |
1477 | LEAVE; | |
1478 | return 0; | |
1479 | } | |
463ee0b2 | 1480 | |
a0d0e21e | 1481 | int |
864dbfa3 | 1482 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1483 | { |
a0d0e21e LW |
1484 | if (mg->mg_ptr) |
1485 | mg->mg_flags |= MGf_GSKIP; | |
58f82c5c | 1486 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1487 | return 0; |
1488 | } | |
1489 | ||
1490 | int | |
864dbfa3 | 1491 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1492 | { |
1493 | dSP; | |
a60c0954 | 1494 | ENTER; |
e788e7d3 | 1495 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1496 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1497 | POPSTACK; |
a60c0954 | 1498 | LEAVE; |
463ee0b2 LW |
1499 | return 0; |
1500 | } | |
1501 | ||
1502 | int | |
864dbfa3 | 1503 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1504 | { |
a0d0e21e LW |
1505 | return magic_methpack(sv,mg,"DELETE"); |
1506 | } | |
463ee0b2 | 1507 | |
93965878 NIS |
1508 | |
1509 | U32 | |
864dbfa3 | 1510 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1511 | { |
e336de0d | 1512 | dSP; |
93965878 NIS |
1513 | U32 retval = 0; |
1514 | ||
1515 | ENTER; | |
1516 | SAVETMPS; | |
e788e7d3 | 1517 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1518 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1519 | sv = *PL_stack_sp--; |
a60c0954 | 1520 | retval = (U32) SvIV(sv)-1; |
93965878 | 1521 | } |
d3acc0f7 | 1522 | POPSTACK; |
93965878 NIS |
1523 | FREETMPS; |
1524 | LEAVE; | |
1525 | return retval; | |
1526 | } | |
1527 | ||
cea2e8a9 GS |
1528 | int |
1529 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1530 | { |
1531 | dSP; | |
463ee0b2 | 1532 | |
e336de0d | 1533 | ENTER; |
e788e7d3 | 1534 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1535 | PUSHMARK(SP); |
33c27489 | 1536 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1537 | PUTBACK; |
864dbfa3 | 1538 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1539 | POPSTACK; |
a60c0954 | 1540 | LEAVE; |
463ee0b2 LW |
1541 | return 0; |
1542 | } | |
1543 | ||
1544 | int | |
864dbfa3 | 1545 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1546 | { |
463ee0b2 | 1547 | dSP; |
dff6d3cd | 1548 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1549 | |
1550 | ENTER; | |
a0d0e21e | 1551 | SAVETMPS; |
e788e7d3 | 1552 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1553 | PUSHMARK(SP); |
1554 | EXTEND(SP, 2); | |
33c27489 | 1555 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1556 | if (SvOK(key)) |
1557 | PUSHs(key); | |
1558 | PUTBACK; | |
1559 | ||
864dbfa3 | 1560 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1561 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1562 | |
d3acc0f7 | 1563 | POPSTACK; |
a0d0e21e LW |
1564 | FREETMPS; |
1565 | LEAVE; | |
79072805 LW |
1566 | return 0; |
1567 | } | |
1568 | ||
1569 | int | |
864dbfa3 | 1570 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1571 | { |
1572 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1573 | } |
a0d0e21e LW |
1574 | |
1575 | int | |
864dbfa3 | 1576 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1577 | { |
1578 | OP *o; | |
1579 | I32 i; | |
1580 | GV* gv; | |
1581 | SV** svp; | |
2d8e6c8d | 1582 | STRLEN n_a; |
79072805 | 1583 | |
3280af22 | 1584 | gv = PL_DBline; |
79072805 | 1585 | i = SvTRUE(sv); |
188ea221 | 1586 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1587 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 DM |
1588 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1589 | /* set or clear breakpoint in the relevant control op */ | |
1590 | if (i) | |
1591 | o->op_flags |= OPf_SPECIAL; | |
1592 | else | |
1593 | o->op_flags &= ~OPf_SPECIAL; | |
1594 | } | |
79072805 LW |
1595 | return 0; |
1596 | } | |
1597 | ||
1598 | int | |
864dbfa3 | 1599 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1600 | { |
3280af22 | 1601 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1602 | return 0; |
1603 | } | |
1604 | ||
1605 | int | |
864dbfa3 | 1606 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1607 | { |
3280af22 | 1608 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1609 | return 0; |
1610 | } | |
1611 | ||
1612 | int | |
864dbfa3 | 1613 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1614 | { |
1615 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1616 | |
a0d0e21e | 1617 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1618 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1619 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1620 | I32 i = mg->mg_len; |
7e2040f0 | 1621 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1622 | sv_pos_b2u(lsv, &i); |
1623 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1624 | return 0; |
1625 | } | |
1626 | } | |
1627 | (void)SvOK_off(sv); | |
1628 | return 0; | |
1629 | } | |
1630 | ||
1631 | int | |
864dbfa3 | 1632 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1633 | { |
1634 | SV* lsv = LvTARG(sv); | |
1635 | SSize_t pos; | |
1636 | STRLEN len; | |
c00206c8 | 1637 | STRLEN ulen = 0; |
a0d0e21e LW |
1638 | |
1639 | mg = 0; | |
ac27b0f5 | 1640 | |
a0d0e21e | 1641 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1642 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1643 | if (!mg) { |
1644 | if (!SvOK(sv)) | |
1645 | return 0; | |
14befaf4 DM |
1646 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1647 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1648 | } |
1649 | else if (!SvOK(sv)) { | |
565764a8 | 1650 | mg->mg_len = -1; |
a0d0e21e LW |
1651 | return 0; |
1652 | } | |
1653 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1654 | ||
c485e607 | 1655 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1656 | |
7e2040f0 | 1657 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1658 | ulen = sv_len_utf8(lsv); |
1659 | if (ulen) | |
1660 | len = ulen; | |
a0ed51b3 LW |
1661 | } |
1662 | ||
a0d0e21e LW |
1663 | if (pos < 0) { |
1664 | pos += len; | |
1665 | if (pos < 0) | |
1666 | pos = 0; | |
1667 | } | |
eb160463 | 1668 | else if (pos > (SSize_t)len) |
a0d0e21e | 1669 | pos = len; |
a0ed51b3 LW |
1670 | |
1671 | if (ulen) { | |
1672 | I32 p = pos; | |
1673 | sv_pos_u2b(lsv, &p, 0); | |
1674 | pos = p; | |
1675 | } | |
727405f8 | 1676 | |
565764a8 | 1677 | mg->mg_len = pos; |
71be2cbc | 1678 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1679 | |
79072805 LW |
1680 | return 0; |
1681 | } | |
1682 | ||
1683 | int | |
864dbfa3 | 1684 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1685 | { |
8646b087 | 1686 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1687 | SvFAKE_off(sv); | |
946ec16e | 1688 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1689 | SvFAKE_on(sv); |
1690 | } | |
1691 | else | |
946ec16e | 1692 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1693 | return 0; |
1694 | } | |
1695 | ||
1696 | int | |
864dbfa3 | 1697 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1698 | { |
1699 | register char *s; | |
1700 | GV* gv; | |
2d8e6c8d | 1701 | STRLEN n_a; |
79072805 LW |
1702 | |
1703 | if (!SvOK(sv)) | |
1704 | return 0; | |
2d8e6c8d | 1705 | s = SvPV(sv, n_a); |
79072805 LW |
1706 | if (*s == '*' && s[1]) |
1707 | s++; | |
85e6fe83 | 1708 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1709 | if (sv == (SV*)gv) |
1710 | return 0; | |
1711 | if (GvGP(sv)) | |
88e89b8a | 1712 | gp_free((GV*)sv); |
79072805 | 1713 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1714 | return 0; |
1715 | } | |
1716 | ||
1717 | int | |
864dbfa3 | 1718 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1719 | { |
1720 | STRLEN len; | |
1721 | SV *lsv = LvTARG(sv); | |
1722 | char *tmps = SvPV(lsv,len); | |
1723 | I32 offs = LvTARGOFF(sv); | |
1724 | I32 rem = LvTARGLEN(sv); | |
1725 | ||
9aa983d2 JH |
1726 | if (SvUTF8(lsv)) |
1727 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1728 | if (offs > (I32)len) |
6ff81951 | 1729 | offs = len; |
eb160463 | 1730 | if (rem + offs > (I32)len) |
6ff81951 GS |
1731 | rem = len - offs; |
1732 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1733 | if (SvUTF8(lsv)) |
2ef4b674 | 1734 | SvUTF8_on(sv); |
6ff81951 GS |
1735 | return 0; |
1736 | } | |
1737 | ||
1738 | int | |
864dbfa3 | 1739 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1740 | { |
9aa983d2 JH |
1741 | STRLEN len; |
1742 | char *tmps = SvPV(sv, len); | |
1743 | SV *lsv = LvTARG(sv); | |
1744 | I32 lvoff = LvTARGOFF(sv); | |
1745 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1746 | |
1aa99e6b | 1747 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1748 | sv_utf8_upgrade(lsv); |
1749 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1750 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1751 | SvUTF8_on(lsv); | |
1752 | } | |
9bf12eaf | 1753 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1754 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1755 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1756 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1757 | Safefree(tmps); | |
1aa99e6b IH |
1758 | } |
1759 | else | |
9aa983d2 | 1760 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1761 | |
79072805 LW |
1762 | return 0; |
1763 | } | |
1764 | ||
1765 | int | |
864dbfa3 | 1766 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1767 | { |
565764a8 | 1768 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1769 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1770 | return 0; |
1771 | } | |
1772 | ||
1773 | int | |
864dbfa3 | 1774 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1775 | { |
3280af22 NIS |
1776 | if (PL_localizing) { |
1777 | if (PL_localizing == 1) | |
565764a8 | 1778 | mg->mg_len <<= 1; |
748a9306 | 1779 | else |
565764a8 | 1780 | mg->mg_len >>= 1; |
a0d0e21e | 1781 | } |
3280af22 | 1782 | else if (PL_tainted) |
565764a8 | 1783 | mg->mg_len |= 1; |
748a9306 | 1784 | else |
565764a8 | 1785 | mg->mg_len &= ~1; |
463ee0b2 LW |
1786 | return 0; |
1787 | } | |
1788 | ||
1789 | int | |
864dbfa3 | 1790 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1791 | { |
1792 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1793 | |
1794 | if (!lsv) { | |
155aba94 | 1795 | (void)SvOK_off(sv); |
6ff81951 GS |
1796 | return 0; |
1797 | } | |
6ff81951 | 1798 | |
81e118e0 | 1799 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1800 | return 0; |
1801 | } | |
1802 | ||
1803 | int | |
864dbfa3 | 1804 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1805 | { |
1806 | do_vecset(sv); /* XXX slurp this routine */ | |
1807 | return 0; | |
1808 | } | |
1809 | ||
1810 | int | |
864dbfa3 | 1811 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1812 | { |
71be2cbc | 1813 | SV *targ = Nullsv; |
5f05dabc | 1814 | if (LvTARGLEN(sv)) { |
68dc0745 | 1815 | if (mg->mg_obj) { |
74e13ce4 | 1816 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1817 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1818 | if (he) | |
1819 | targ = HeVAL(he); | |
68dc0745 | 1820 | } |
1821 | else { | |
3c78fafa | 1822 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1823 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1824 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1825 | } | |
3280af22 | 1826 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1827 | /* somebody else defined it for us */ |
1828 | SvREFCNT_dec(LvTARG(sv)); | |
1829 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1830 | LvTARGLEN(sv) = 0; | |
1831 | SvREFCNT_dec(mg->mg_obj); | |
1832 | mg->mg_obj = Nullsv; | |
1833 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1834 | } | |
5f05dabc | 1835 | } |
71be2cbc | 1836 | else |
1837 | targ = LvTARG(sv); | |
3280af22 | 1838 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1839 | return 0; |
1840 | } | |
1841 | ||
1842 | int | |
864dbfa3 | 1843 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1844 | { |
1845 | if (LvTARGLEN(sv)) | |
68dc0745 | 1846 | vivify_defelem(sv); |
1847 | if (LvTARG(sv)) { | |
5f05dabc | 1848 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1849 | SvSETMAGIC(LvTARG(sv)); |
1850 | } | |
5f05dabc | 1851 | return 0; |
1852 | } | |
1853 | ||
71be2cbc | 1854 | void |
864dbfa3 | 1855 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1856 | { |
74e13ce4 GS |
1857 | MAGIC *mg; |
1858 | SV *value = Nullsv; | |
71be2cbc | 1859 | |
14befaf4 | 1860 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1861 | return; |
68dc0745 | 1862 | if (mg->mg_obj) { |
74e13ce4 | 1863 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1864 | STRLEN n_a; |
6d822dc4 MS |
1865 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1866 | if (he) | |
1867 | value = HeVAL(he); | |
3280af22 | 1868 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1869 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1870 | } |
68dc0745 | 1871 | else { |
1872 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1873 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1874 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1875 | else { | |
1876 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1877 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1878 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1879 | } |
1880 | } | |
3e3baf6d | 1881 | (void)SvREFCNT_inc(value); |
68dc0745 | 1882 | SvREFCNT_dec(LvTARG(sv)); |
1883 | LvTARG(sv) = value; | |
71be2cbc | 1884 | LvTARGLEN(sv) = 0; |
68dc0745 | 1885 | SvREFCNT_dec(mg->mg_obj); |
1886 | mg->mg_obj = Nullsv; | |
1887 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1888 | } |
1889 | ||
1890 | int | |
864dbfa3 | 1891 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1892 | { |
1893 | AV *av = (AV*)mg->mg_obj; | |
1894 | SV **svp = AvARRAY(av); | |
1895 | I32 i = AvFILLp(av); | |
1896 | while (i >= 0) { | |
1897 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1898 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1899 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1900 | /* XXX Should we check that it hasn't changed? */ |
1901 | SvRV(svp[i]) = 0; | |
155aba94 | 1902 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1903 | SvWEAKREF_off(svp[i]); |
1904 | svp[i] = &PL_sv_undef; | |
1905 | } | |
1906 | i--; | |
1907 | } | |
d99b02a1 | 1908 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
1909 | return 0; |
1910 | } | |
1911 | ||
1912 | int | |
864dbfa3 | 1913 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1914 | { |
565764a8 | 1915 | mg->mg_len = -1; |
c6496cc7 | 1916 | SvSCREAM_off(sv); |
93a17b20 LW |
1917 | return 0; |
1918 | } | |
1919 | ||
1920 | int | |
864dbfa3 | 1921 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1922 | { |
14befaf4 | 1923 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1924 | SvVALID_off(sv); |
1925 | return 0; | |
1926 | } | |
1927 | ||
1928 | int | |
864dbfa3 | 1929 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1930 | { |
14befaf4 | 1931 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1932 | SvCOMPILED_off(sv); |
1933 | return 0; | |
1934 | } | |
1935 | ||
1936 | int | |
864dbfa3 | 1937 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1938 | { |
1939 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1940 | ||
1941 | if (uf && uf->uf_set) | |
24f81a43 | 1942 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1943 | return 0; |
1944 | } | |
1945 | ||
c277df42 | 1946 | int |
faf82a0b AE |
1947 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
1948 | { | |
1949 | sv_unmagic(sv, PERL_MAGIC_qr); | |
1950 | return 0; | |
1951 | } | |
1952 | ||
1953 | int | |
864dbfa3 | 1954 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1955 | { |
1956 | regexp *re = (regexp *)mg->mg_obj; | |
1957 | ReREFCNT_dec(re); | |
1958 | return 0; | |
1959 | } | |
1960 | ||
7a4c00b4 | 1961 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1962 | int |
864dbfa3 | 1963 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1964 | { |
1965 | /* | |
838b5b74 | 1966 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1967 | * and vanished with a faint plop. |
1968 | */ | |
7a4c00b4 | 1969 | if (mg->mg_ptr) { |
1970 | Safefree(mg->mg_ptr); | |
1971 | mg->mg_ptr = NULL; | |
565764a8 | 1972 | mg->mg_len = -1; |
7a4c00b4 | 1973 | } |
bbce6d69 | 1974 | return 0; |
1975 | } | |
7a4c00b4 | 1976 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1977 | |
7e8c5dac HS |
1978 | /* Just clear the UTF-8 cache data. */ |
1979 | int | |
1980 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
1981 | { | |
1982 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ | |
1983 | mg->mg_ptr = 0; | |
1984 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
1985 | return 0; | |
1986 | } | |
1987 | ||
bbce6d69 | 1988 | int |
864dbfa3 | 1989 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1990 | { |
1991 | register char *s; | |
1992 | I32 i; | |
8990e307 | 1993 | STRLEN len; |
79072805 | 1994 | switch (*mg->mg_ptr) { |
748a9306 | 1995 | case '\001': /* ^A */ |
3280af22 | 1996 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1997 | break; |
49460fe6 | 1998 | case '\003': /* ^C */ |
eb160463 | 1999 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
2000 | break; |
2001 | ||
79072805 | 2002 | case '\004': /* ^D */ |
b4ab917c DM |
2003 | #ifdef DEBUGGING |
2004 | s = SvPV_nolen(sv); | |
2005 | PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG; | |
79072805 | 2006 | DEBUG_x(dump_all()); |
b4ab917c DM |
2007 | #else |
2008 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
2009 | #endif | |
79072805 | 2010 | break; |
28f23441 | 2011 | case '\005': /* ^E */ |
d0063567 | 2012 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2013 | #ifdef MACOS_TRADITIONAL |
d0063567 | 2014 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2015 | #else |
cd39f2b6 | 2016 | # ifdef VMS |
d0063567 | 2017 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2018 | # else |
cd39f2b6 | 2019 | # ifdef WIN32 |
d0063567 | 2020 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2021 | # else |
9fed8b87 | 2022 | # ifdef OS2 |
d0063567 | 2023 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2024 | # else |
d0063567 DK |
2025 | /* will anyone ever use this? */ |
2026 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2027 | # endif |
048c1ddf IZ |
2028 | # endif |
2029 | # endif | |
22fae026 | 2030 | #endif |
d0063567 DK |
2031 | } |
2032 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2033 | if (PL_encoding) | |
2034 | SvREFCNT_dec(PL_encoding); | |
2035 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2036 | PL_encoding = newSVsv(sv); | |
2037 | } | |
2038 | else { | |
2039 | PL_encoding = Nullsv; | |
2040 | } | |
2041 | } | |
2042 | break; | |
79072805 | 2043 | case '\006': /* ^F */ |
3280af22 | 2044 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2045 | break; |
a0d0e21e | 2046 | case '\010': /* ^H */ |
3280af22 | 2047 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2048 | break; |
9d116dd7 | 2049 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2050 | if (PL_inplace) |
2051 | Safefree(PL_inplace); | |
79072805 | 2052 | if (SvOK(sv)) |
2d8e6c8d | 2053 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 2054 | else |
3280af22 | 2055 | PL_inplace = Nullch; |
79072805 | 2056 | break; |
28f23441 | 2057 | case '\017': /* ^O */ |
ac27b0f5 NIS |
2058 | if (*(mg->mg_ptr+1) == '\0') { |
2059 | if (PL_osname) | |
2060 | Safefree(PL_osname); | |
2061 | if (SvOK(sv)) | |
2062 | PL_osname = savepv(SvPV(sv,len)); | |
2063 | else | |
2064 | PL_osname = Nullch; | |
2065 | } | |
2066 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2067 | if (!PL_compiling.cop_io) | |
2068 | PL_compiling.cop_io = newSVsv(sv); | |
2069 | else | |
2070 | sv_setsv(PL_compiling.cop_io,sv); | |
2071 | } | |
28f23441 | 2072 | break; |
79072805 | 2073 | case '\020': /* ^P */ |
3280af22 | 2074 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
2075 | if (PL_perldb && !PL_DBsingle) |
2076 | init_debugger(); | |
79072805 LW |
2077 | break; |
2078 | case '\024': /* ^T */ | |
88e89b8a | 2079 | #ifdef BIG_TIME |
6b88bc9c | 2080 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2081 | #else |
3280af22 | 2082 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2083 | #endif |
79072805 | 2084 | break; |
fde18df1 | 2085 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2086 | if (*(mg->mg_ptr+1) == '\0') { |
2087 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2088 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2089 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2090 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2091 | } |
599cee73 | 2092 | } |
0a378802 | 2093 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2094 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2095 | if (!SvPOK(sv) && PL_localizing) { |
2096 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2097 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2098 | break; |
2099 | } | |
f4fc7782 | 2100 | { |
b5477537 | 2101 | STRLEN len, i; |
d3a7d8c7 | 2102 | int accumulate = 0 ; |
f4fc7782 | 2103 | int any_fatals = 0 ; |
d3a7d8c7 | 2104 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
2105 | for (i = 0 ; i < len ; ++i) { |
2106 | accumulate |= ptr[i] ; | |
2107 | any_fatals |= (ptr[i] & 0xAA) ; | |
2108 | } | |
d3a7d8c7 GS |
2109 | if (!accumulate) |
2110 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2111 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2112 | PL_compiling.cop_warnings = pWARN_ALL; | |
2113 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2114 | } |
d3a7d8c7 GS |
2115 | else { |
2116 | if (specialWARN(PL_compiling.cop_warnings)) | |
2117 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2118 | else | |
2119 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2120 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2121 | PL_dowarn |= G_WARN_ONCE ; | |
2122 | } | |
f4fc7782 | 2123 | |
d3a7d8c7 | 2124 | } |
4438c4b7 | 2125 | } |
971a9dd3 | 2126 | } |
79072805 LW |
2127 | break; |
2128 | case '.': | |
3280af22 NIS |
2129 | if (PL_localizing) { |
2130 | if (PL_localizing == 1) | |
7766f137 | 2131 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2132 | } |
3280af22 | 2133 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2134 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2135 | break; |
2136 | case '^': | |
3280af22 | 2137 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2138 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2139 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2140 | break; |
2141 | case '~': | |
3280af22 | 2142 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2143 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2144 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2145 | break; |
2146 | case '=': | |
632db599 | 2147 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2148 | break; |
2149 | case '-': | |
632db599 | 2150 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2151 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2152 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2153 | break; |
2154 | case '%': | |
632db599 | 2155 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2156 | break; |
2157 | case '|': | |
4b65379b | 2158 | { |
3280af22 | 2159 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2160 | if(!io) |
2161 | break; | |
4b65379b CS |
2162 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2163 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2164 | else { | |
2165 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2166 | PerlIO *ofp = IoOFP(io); | |
2167 | if (ofp) | |
2168 | (void)PerlIO_flush(ofp); | |
2169 | IoFLAGS(io) |= IOf_FLUSH; | |
2170 | } | |
2171 | } | |
79072805 LW |
2172 | } |
2173 | break; | |
79072805 | 2174 | case '/': |
3280af22 | 2175 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2176 | PL_rs = newSVsv(sv); |
79072805 LW |
2177 | break; |
2178 | case '\\': | |
7889fe52 NIS |
2179 | if (PL_ors_sv) |
2180 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2181 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2182 | PL_ors_sv = newSVsv(sv); |
009c130f | 2183 | } |
e3c19b7b | 2184 | else { |
7889fe52 | 2185 | PL_ors_sv = Nullsv; |
e3c19b7b | 2186 | } |
79072805 LW |
2187 | break; |
2188 | case ',': | |
7889fe52 NIS |
2189 | if (PL_ofs_sv) |
2190 | SvREFCNT_dec(PL_ofs_sv); | |
2191 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2192 | PL_ofs_sv = newSVsv(sv); | |
2193 | } | |
2194 | else { | |
2195 | PL_ofs_sv = Nullsv; | |
2196 | } | |
79072805 LW |
2197 | break; |
2198 | case '#': | |
3280af22 NIS |
2199 | if (PL_ofmt) |
2200 | Safefree(PL_ofmt); | |
2d8e6c8d | 2201 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2202 | break; |
2203 | case '[': | |
3280af22 | 2204 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2205 | break; |
2206 | case '?': | |
ff0cee69 | 2207 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2208 | if (PL_localizing == 2) { |
2209 | PL_statusvalue = LvTARGOFF(sv); | |
2210 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2211 | } |
2212 | else | |
2213 | #endif | |
2214 | #ifdef VMSISH_STATUS | |
2215 | if (VMSISH_STATUS) | |
2216 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2217 | else | |
2218 | #endif | |
2219 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2220 | break; |
2221 | case '!': | |
93189314 JH |
2222 | { |
2223 | #ifdef VMS | |
2224 | # define PERL_VMS_BANG vaxc$errno | |
2225 | #else | |
2226 | # define PERL_VMS_BANG 0 | |
2227 | #endif | |
91487cfc | 2228 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2229 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2230 | } | |
79072805 LW |
2231 | break; |
2232 | case '<': | |
3280af22 NIS |
2233 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2234 | if (PL_delaymagic) { | |
2235 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2236 | break; /* don't do magic till later */ |
2237 | } | |
2238 | #ifdef HAS_SETRUID | |
b28d0864 | 2239 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2240 | #else |
2241 | #ifdef HAS_SETREUID | |
3280af22 | 2242 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2243 | #else |
85e6fe83 | 2244 | #ifdef HAS_SETRESUID |
b28d0864 | 2245 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2246 | #else |
75870ed3 | 2247 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2248 | #ifdef PERL_DARWIN | |
2249 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2250 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2251 | (void)PerlProc_setuid(0); | |
2252 | #endif | |
b28d0864 | 2253 | (void)PerlProc_setuid(PL_uid); |
75870ed3 | 2254 | } else { |
d8eceb89 | 2255 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2256 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2257 | } |
79072805 LW |
2258 | #endif |
2259 | #endif | |
85e6fe83 | 2260 | #endif |
d8eceb89 | 2261 | PL_uid = PerlProc_getuid(); |
3280af22 | 2262 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2263 | break; |
2264 | case '>': | |
3280af22 NIS |
2265 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2266 | if (PL_delaymagic) { | |
2267 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2268 | break; /* don't do magic till later */ |
2269 | } | |
2270 | #ifdef HAS_SETEUID | |
3280af22 | 2271 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2272 | #else |
2273 | #ifdef HAS_SETREUID | |
b28d0864 | 2274 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2275 | #else |
2276 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2277 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2278 | #else |
b28d0864 NIS |
2279 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2280 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2281 | else { |
e8ee3774 | 2282 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2283 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2284 | } |
79072805 LW |
2285 | #endif |
2286 | #endif | |
85e6fe83 | 2287 | #endif |
d8eceb89 | 2288 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2289 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2290 | break; |
2291 | case '(': | |
3280af22 NIS |
2292 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2293 | if (PL_delaymagic) { | |
2294 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2295 | break; /* don't do magic till later */ |
2296 | } | |
2297 | #ifdef HAS_SETRGID | |
b28d0864 | 2298 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2299 | #else |
2300 | #ifdef HAS_SETREGID | |
3280af22 | 2301 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2302 | #else |
2303 | #ifdef HAS_SETRESGID | |
b28d0864 | 2304 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2305 | #else |
b28d0864 NIS |
2306 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2307 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2308 | else { |
d8eceb89 | 2309 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2310 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2311 | } |
79072805 LW |
2312 | #endif |
2313 | #endif | |
85e6fe83 | 2314 | #endif |
d8eceb89 | 2315 | PL_gid = PerlProc_getgid(); |
3280af22 | 2316 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2317 | break; |
2318 | case ')': | |
5cd24f17 | 2319 | #ifdef HAS_SETGROUPS |
2320 | { | |
2d8e6c8d | 2321 | char *p = SvPV(sv, len); |
5cd24f17 | 2322 | Groups_t gary[NGROUPS]; |
2323 | ||
5cd24f17 | 2324 | while (isSPACE(*p)) |
2325 | ++p; | |
2d4389e4 | 2326 | PL_egid = Atol(p); |
5cd24f17 | 2327 | for (i = 0; i < NGROUPS; ++i) { |
2328 | while (*p && !isSPACE(*p)) | |
2329 | ++p; | |
2330 | while (isSPACE(*p)) | |
2331 | ++p; | |
2332 | if (!*p) | |
2333 | break; | |
2d4389e4 | 2334 | gary[i] = Atol(p); |
5cd24f17 | 2335 | } |
8cc95fdb | 2336 | if (i) |
2337 | (void)setgroups(i, gary); | |
5cd24f17 | 2338 | } |
2339 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2340 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2341 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2342 | if (PL_delaymagic) { |
2343 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2344 | break; /* don't do magic till later */ |
2345 | } | |
2346 | #ifdef HAS_SETEGID | |
3280af22 | 2347 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2348 | #else |
2349 | #ifdef HAS_SETREGID | |
b28d0864 | 2350 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2351 | #else |
2352 | #ifdef HAS_SETRESGID | |
b28d0864 | 2353 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2354 | #else |
b28d0864 NIS |
2355 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2356 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2357 | else { |
d8eceb89 | 2358 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2359 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2360 | } |
79072805 LW |
2361 | #endif |
2362 | #endif | |
85e6fe83 | 2363 | #endif |
d8eceb89 | 2364 | PL_egid = PerlProc_getegid(); |
3280af22 | 2365 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2366 | break; |
2367 | case ':': | |
2d8e6c8d | 2368 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2369 | break; |
cd39f2b6 | 2370 | #ifndef MACOS_TRADITIONAL |
79072805 | 2371 | case '0': |
e2975953 | 2372 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2373 | #ifdef HAS_SETPROCTITLE |
2374 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2375 | * show a string from the process struct and provide | |
2376 | * the setproctitle() routine to manipulate that. */ | |
2377 | { | |
2378 | s = SvPV(sv, len); | |
98b76f99 | 2379 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2380 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2381 | * but not the "(perl) suffix from the ps(1) |
2382 | * output, because that's what ps(1) shows if the | |
2383 | * argv[] is modified. */ | |
6f2ad931 | 2384 | setproctitle("-%s", s); |
9aad2c0e | 2385 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2386 | /* This doesn't really work if you assume that |
2387 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2388 | * because in ps(1) output the result will be like | |
2389 | * sprintf("perl: %s (perl)", s) | |
2390 | * I guess this is a security feature: | |
2391 | * one (a user process) cannot get rid of the original name. | |
2392 | * --jhi */ | |
2393 | setproctitle("%s", s); | |
2394 | # endif | |
2395 | } | |
2396 | #endif | |
17aa7f3d JH |
2397 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2398 | { | |
2399 | union pstun un; | |
2400 | s = SvPV(sv, len); | |
2401 | un.pst_command = s; | |
2402 | pstat(PSTAT_SETCMD, un, len, 0, 0); | |
2403 | } | |
2404 | #endif | |
3cb9023d | 2405 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2406 | s = SvPV_force(sv,len); |
6f698202 AMS |
2407 | if (len >= (STRLEN)PL_origalen-1) { |
2408 | /* Longer than original, will be truncated. We assume that | |
2409 | * PL_origalen bytes are available. */ | |
2410 | Copy(s, PL_origargv[0], PL_origalen-1, char); | |
2411 | PL_origargv[0][PL_origalen-1] = 0; | |
79072805 LW |
2412 | } |
2413 | else { | |
54bfe034 JH |
2414 | /* Shorter than original, will be padded. */ |
2415 | Copy(s, PL_origargv[0], len, char); | |
2416 | PL_origargv[0][len] = 0; | |
2417 | memset(PL_origargv[0] + len + 1, | |
2418 | /* Is the space counterintuitive? Yes. | |
2419 | * (You were expecting \0?) | |
3cb9023d | 2420 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 JH |
2421 | * --jhi */ |
2422 | (int)' ', | |
2423 | PL_origalen - len - 1); | |
3280af22 | 2424 | for (i = 1; i < PL_origargc; i++) |
54bfe034 | 2425 | PL_origargv[i] = 0; |
79072805 | 2426 | } |
e2975953 | 2427 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2428 | break; |
cd39f2b6 | 2429 | #endif |
79072805 LW |
2430 | } |
2431 | return 0; | |
2432 | } | |
2433 | ||
2434 | I32 | |
864dbfa3 | 2435 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2436 | { |
2437 | register char **sigv; | |
2438 | ||
e02bfb16 | 2439 | for (sigv = PL_sig_name; *sigv; sigv++) |
79072805 | 2440 | if (strEQ(sig,*sigv)) |
22c35a8c | 2441 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2442 | #ifdef SIGCLD |
2443 | if (strEQ(sig,"CHLD")) | |
2444 | return SIGCLD; | |
2445 | #endif | |
2446 | #ifdef SIGCHLD | |
2447 | if (strEQ(sig,"CLD")) | |
2448 | return SIGCHLD; | |
2449 | #endif | |
7f1236c0 | 2450 | return -1; |
79072805 LW |
2451 | } |
2452 | ||
df3728a2 | 2453 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2454 | static SV* sig_sv; |
df3728a2 | 2455 | #endif |
84902520 | 2456 | |
ecfc5424 | 2457 | Signal_t |
cea2e8a9 | 2458 | Perl_sighandler(int sig) |
79072805 | 2459 | { |
1018e26f NIS |
2460 | #ifdef PERL_GET_SIG_CONTEXT |
2461 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2462 | #else |
cea2e8a9 | 2463 | dTHX; |
71d280e3 | 2464 | #endif |
79072805 | 2465 | dSP; |
00d579c5 | 2466 | GV *gv = Nullgv; |
a0d0e21e | 2467 | HV *st; |
b7953727 | 2468 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2469 | CV *cv = Nullcv; |
533c011a | 2470 | OP *myop = PL_op; |
84902520 | 2471 | U32 flags = 0; |
3280af22 | 2472 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2473 | |
3280af22 | 2474 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2475 | flags |= 1; |
3280af22 | 2476 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2477 | flags |= 4; |
3280af22 | 2478 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2479 | flags |= 8; |
3280af22 | 2480 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2481 | flags |= 16; |
2482 | ||
727405f8 | 2483 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2484 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2485 | PL_sig_name[sig]); |
2486 | exit(sig); | |
2487 | } | |
ff0cee69 | 2488 | |
84902520 TB |
2489 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2490 | infinity, so we fix 4 (in fact 5): */ | |
2491 | if (flags & 1) { | |
3280af22 | 2492 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2493 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2494 | } |
ac27b0f5 | 2495 | if (flags & 4) |
3280af22 | 2496 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2497 | if (flags & 8) { |
3280af22 NIS |
2498 | PL_retstack_ix++; |
2499 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2500 | } |
2501 | if (flags & 16) | |
3280af22 | 2502 | PL_scopestack_ix += 1; |
84902520 | 2503 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2504 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2505 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2506 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2507 | |
a0d0e21e | 2508 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2509 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2510 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2511 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2512 | : ((cv && CvGV(cv)) |
2513 | ? GvENAME(CvGV(cv)) | |
2514 | : "__ANON__"))); | |
2515 | goto cleanup; | |
79072805 LW |
2516 | } |
2517 | ||
22c35a8c GS |
2518 | if(PL_psig_name[sig]) { |
2519 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2520 | flags |= 64; |
df3728a2 | 2521 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2522 | sig_sv = sv; |
df3728a2 | 2523 | #endif |
84902520 | 2524 | } else { |
ff0cee69 | 2525 | sv = sv_newmortal(); |
22c35a8c | 2526 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2527 | } |
e336de0d | 2528 | |
e788e7d3 | 2529 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2530 | PUSHMARK(SP); |
79072805 | 2531 | PUSHs(sv); |
79072805 | 2532 | PUTBACK; |
a0d0e21e | 2533 | |
1b266415 | 2534 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2535 | |
d3acc0f7 | 2536 | POPSTACK; |
1b266415 | 2537 | if (SvTRUE(ERRSV)) { |
1d615522 | 2538 | #ifndef PERL_MICRO |
983dbef6 | 2539 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2540 | /* Handler "died", for example to get out of a restart-able read(). |
2541 | * Before we re-do that on its behalf re-enable the signal which was | |
2542 | * blocked by the system when we entered. | |
2543 | */ | |
2544 | sigset_t set; | |
2545 | sigemptyset(&set); | |
2546 | sigaddset(&set,sig); | |
2547 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2548 | #else | |
2549 | /* Not clear if this will work */ | |
2550 | (void)rsignal(sig, SIG_IGN); | |
5c1546dc | 2551 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2552 | #endif |
1d615522 | 2553 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2554 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2555 | } |
00d579c5 | 2556 | cleanup: |
84902520 | 2557 | if (flags & 1) |
3280af22 | 2558 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2559 | if (flags & 4) |
3280af22 | 2560 | PL_markstack_ptr--; |
ac27b0f5 | 2561 | if (flags & 8) |
3280af22 | 2562 | PL_retstack_ix--; |
84902520 | 2563 | if (flags & 16) |
3280af22 | 2564 | PL_scopestack_ix -= 1; |
84902520 TB |
2565 | if (flags & 64) |
2566 | SvREFCNT_dec(sv); | |
533c011a | 2567 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2568 | |
3280af22 NIS |
2569 | PL_Sv = tSv; /* Restore global temporaries. */ |
2570 | PL_Xpv = tXpv; | |
53bb94e2 | 2571 | return; |
79072805 | 2572 | } |
4e35701f NIS |
2573 | |
2574 | ||
51371543 | 2575 | static void |
acfe0abc | 2576 | restore_magic(pTHX_ void *p) |
51371543 | 2577 | { |
48944bdf | 2578 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2579 | SV* sv = mgs->mgs_sv; |
2580 | ||
2581 | if (!sv) | |
2582 | return; | |
2583 | ||
2584 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2585 | { | |
f9701176 NC |
2586 | #ifdef PERL_COPY_ON_WRITE |
2587 | /* While magic was saved (and off) sv_setsv may well have seen | |
2588 | this SV as a prime candidate for COW. */ | |
2589 | if (SvIsCOW(sv)) | |
2590 | sv_force_normal(sv); | |
2591 | #endif | |
2592 | ||
51371543 GS |
2593 | if (mgs->mgs_flags) |
2594 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2595 | else | |
2596 | mg_magical(sv); | |
2597 | if (SvGMAGICAL(sv)) | |
2598 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2599 | } | |
2600 | ||
2601 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2602 | ||
2603 | /* If we're still on top of the stack, pop us off. (That condition | |
2604 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2605 | * if it's being called via leave_scope.) | |
2606 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2607 | * may leave alloc gunk on the savestack, and some code | |
2608 | * (e.g. sighandler) doesn't expect that... | |
2609 | */ | |
2610 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2611 | { | |
2612 | I32 popval = SSPOPINT; | |
c76ac1ee | 2613 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2614 | PL_savestack_ix -= 2; |
2615 | popval = SSPOPINT; | |
2616 | assert(popval == SAVEt_ALLOC); | |
2617 | popval = SSPOPINT; | |
2618 | PL_savestack_ix -= popval; | |
2619 | } | |
2620 | ||
2621 | } | |
2622 | ||
2623 | static void | |
acfe0abc | 2624 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2625 | { |
51371543 GS |
2626 | U32 flags = *(U32*)p; |
2627 | ||
2628 | if (flags & 1) | |
2629 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2630 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2631 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2632 | if (flags & 64) |
2633 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2634 | #endif |
51371543 | 2635 | } |
1018e26f NIS |
2636 | |
2637 |