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 |
0a378802 JH |
626 | sv_setnv(sv, (NV)errno); |
627 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
28f23441 | 628 | #endif |
88e89b8a | 629 | #endif |
22fae026 | 630 | #endif |
cd39f2b6 | 631 | #endif |
0a378802 JH |
632 | SvNOK_on(sv); /* what a wonderful hack! */ |
633 | } | |
634 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
635 | sv_setsv(sv, PL_encoding); | |
636 | break; | |
79072805 | 637 | case '\006': /* ^F */ |
3280af22 | 638 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 639 | break; |
a0d0e21e | 640 | case '\010': /* ^H */ |
3280af22 | 641 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 642 | break; |
9d116dd7 | 643 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
644 | if (PL_inplace) |
645 | sv_setpv(sv, PL_inplace); | |
79072805 | 646 | else |
3280af22 | 647 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 648 | break; |
ac27b0f5 NIS |
649 | case '\017': /* ^O & ^OPEN */ |
650 | if (*(mg->mg_ptr+1) == '\0') | |
651 | sv_setpv(sv, PL_osname); | |
652 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
653 | if (!PL_compiling.cop_io) | |
654 | sv_setsv(sv, &PL_sv_undef); | |
655 | else { | |
656 | sv_setsv(sv, PL_compiling.cop_io); | |
657 | } | |
658 | } | |
28f23441 | 659 | break; |
79072805 | 660 | case '\020': /* ^P */ |
3280af22 | 661 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 662 | break; |
fb73857a | 663 | case '\023': /* ^S */ |
4ffa73a3 | 664 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 665 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 666 | (void)SvOK_off(sv); |
3280af22 | 667 | else if (PL_in_eval) |
6dc8a9e4 | 668 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
669 | else |
670 | sv_setiv(sv, 0); | |
d58bf5aa | 671 | } |
fb73857a | 672 | break; |
79072805 | 673 | case '\024': /* ^T */ |
7c36658b | 674 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 675 | #ifdef BIG_TIME |
7c36658b | 676 | sv_setnv(sv, PL_basetime); |
88e89b8a | 677 | #else |
7c36658b | 678 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 679 | #endif |
7c36658b MS |
680 | } |
681 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
682 | sv_setiv(sv, PL_tainting |
683 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
684 | : 0); | |
7c36658b | 685 | break; |
a05d7ebb JH |
686 | case '\025': /* $^UNICODE */ |
687 | if (strEQ(mg->mg_ptr, "\025NICODE")) | |
688 | sv_setuv(sv, (UV) PL_unicode); | |
fde18df1 JH |
689 | break; |
690 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
691 | if (*(mg->mg_ptr+1) == '\0') |
692 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 693 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
694 | if (PL_compiling.cop_warnings == pWARN_NONE || |
695 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
696 | { |
697 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
698 | } | |
d3a7d8c7 | 699 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
700 | /* Get the bit mask for $warnings::Bits{all}, because |
701 | * it could have been extended by warnings::register */ | |
702 | SV **bits_all; | |
703 | HV *bits=get_hv("warnings::Bits", FALSE); | |
704 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
705 | sv_setsv(sv, *bits_all); | |
706 | } | |
707 | else { | |
708 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
709 | } | |
ac27b0f5 | 710 | } |
4438c4b7 JH |
711 | else { |
712 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 713 | } |
d3a7d8c7 | 714 | SvPOK_only(sv); |
4438c4b7 | 715 | } |
79072805 LW |
716 | break; |
717 | case '1': case '2': case '3': case '4': | |
718 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 719 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
720 | I32 s1, t1; |
721 | ||
a863c7d1 MB |
722 | /* |
723 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
724 | * XXX Does the new way break anything? | |
725 | */ | |
ffc61ed2 | 726 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 727 | getparen: |
eb160463 | 728 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
729 | (s1 = rx->startp[paren]) != -1 && |
730 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 731 | { |
cf93c79d IZ |
732 | i = t1 - s1; |
733 | s = rx->subbeg + s1; | |
01ec43d0 | 734 | if (!rx->subbeg) |
c2e66d9e GS |
735 | break; |
736 | ||
13f57bf8 | 737 | getrx: |
748a9306 | 738 | if (i >= 0) { |
cf93c79d | 739 | sv_setpvn(sv, s, i); |
a30b2f1f | 740 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
741 | SvUTF8_on(sv); |
742 | else | |
743 | SvUTF8_off(sv); | |
e9814ee1 HS |
744 | if (PL_tainting) { |
745 | if (RX_MATCH_TAINTED(rx)) { | |
746 | MAGIC* mg = SvMAGIC(sv); | |
747 | MAGIC* mgt; | |
748 | PL_tainted = 1; | |
749 | SvMAGIC(sv) = mg->mg_moremagic; | |
750 | SvTAINT(sv); | |
751 | if ((mgt = SvMAGIC(sv))) { | |
752 | mg->mg_moremagic = mgt; | |
753 | SvMAGIC(sv) = mg; | |
754 | } | |
755 | } else | |
756 | SvTAINTED_off(sv); | |
757 | } | |
748a9306 LW |
758 | break; |
759 | } | |
79072805 | 760 | } |
79072805 | 761 | } |
3280af22 | 762 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
763 | break; |
764 | case '+': | |
aaa362c4 | 765 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 766 | paren = rx->lastparen; |
a0d0e21e LW |
767 | if (paren) |
768 | goto getparen; | |
79072805 | 769 | } |
3280af22 | 770 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 771 | break; |
a01268b5 JH |
772 | case '\016': /* ^N */ |
773 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
774 | paren = rx->lastcloseparen; | |
775 | if (paren) | |
776 | goto getparen; | |
777 | } | |
778 | sv_setsv(sv,&PL_sv_undef); | |
779 | break; | |
79072805 | 780 | case '`': |
aaa362c4 | 781 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
782 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
783 | i = rx->startp[0]; | |
13f57bf8 | 784 | goto getrx; |
79072805 | 785 | } |
79072805 | 786 | } |
3280af22 | 787 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
788 | break; |
789 | case '\'': | |
aaa362c4 | 790 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
791 | if (rx->subbeg && rx->endp[0] != -1) { |
792 | s = rx->subbeg + rx->endp[0]; | |
793 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 794 | goto getrx; |
79072805 | 795 | } |
79072805 | 796 | } |
3280af22 | 797 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
798 | break; |
799 | case '.': | |
800 | #ifndef lint | |
3280af22 | 801 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 802 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
803 | } |
804 | #endif | |
805 | break; | |
806 | case '?': | |
809a5acc | 807 | { |
809a5acc | 808 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 809 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
810 | LvTARGOFF(sv) = PL_statusvalue; |
811 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 812 | #endif |
809a5acc | 813 | } |
79072805 LW |
814 | break; |
815 | case '^': | |
0daa599b RGS |
816 | if (GvIOp(PL_defoutgv)) |
817 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
818 | if (s) |
819 | sv_setpv(sv,s); | |
820 | else { | |
3280af22 | 821 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
822 | sv_catpv(sv,"_TOP"); |
823 | } | |
824 | break; | |
825 | case '~': | |
0daa599b RGS |
826 | if (GvIOp(PL_defoutgv)) |
827 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 828 | if (!s) |
3280af22 | 829 | s = GvENAME(PL_defoutgv); |
79072805 LW |
830 | sv_setpv(sv,s); |
831 | break; | |
832 | #ifndef lint | |
833 | case '=': | |
0daa599b RGS |
834 | if (GvIOp(PL_defoutgv)) |
835 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
836 | break; |
837 | case '-': | |
0daa599b RGS |
838 | if (GvIOp(PL_defoutgv)) |
839 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
840 | break; |
841 | case '%': | |
0daa599b RGS |
842 | if (GvIOp(PL_defoutgv)) |
843 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 LW |
844 | break; |
845 | #endif | |
846 | case ':': | |
847 | break; | |
848 | case '/': | |
849 | break; | |
850 | case '[': | |
3280af22 | 851 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
852 | break; |
853 | case '|': | |
0daa599b RGS |
854 | if (GvIOp(PL_defoutgv)) |
855 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
856 | break; |
857 | case ',': | |
79072805 LW |
858 | break; |
859 | case '\\': | |
b2ce0fda | 860 | if (PL_ors_sv) |
f28098ff | 861 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
862 | break; |
863 | case '#': | |
3280af22 | 864 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
865 | break; |
866 | case '!': | |
a5f75d66 | 867 | #ifdef VMS |
65202027 | 868 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 869 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 870 | #else |
88e89b8a | 871 | { |
872 | int saveerrno = errno; | |
65202027 | 873 | sv_setnv(sv, (NV)errno); |
88e89b8a | 874 | #ifdef OS2 |
ed344e4f IZ |
875 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
876 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 877 | else |
a5f75d66 | 878 | #endif |
2304df62 | 879 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 880 | errno = saveerrno; |
881 | } | |
882 | #endif | |
946ec16e | 883 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
884 | break; |
885 | case '<': | |
3280af22 | 886 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
887 | break; |
888 | case '>': | |
3280af22 | 889 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
890 | break; |
891 | case '(': | |
3280af22 | 892 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 893 | #ifdef HAS_GETGROUPS |
785fb66b | 894 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 895 | #endif |
79072805 LW |
896 | goto add_groups; |
897 | case ')': | |
3280af22 | 898 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 899 | #ifdef HAS_GETGROUPS |
785fb66b | 900 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 901 | #endif |
79072805 | 902 | add_groups: |
79072805 | 903 | #ifdef HAS_GETGROUPS |
79072805 | 904 | { |
a0d0e21e | 905 | Groups_t gary[NGROUPS]; |
79072805 | 906 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 907 | while (--i >= 0) |
785fb66b | 908 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
909 | } |
910 | #endif | |
155aba94 | 911 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 | 912 | break; |
cd39f2b6 | 913 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
914 | case '0': |
915 | break; | |
cd39f2b6 | 916 | #endif |
79072805 | 917 | } |
a0d0e21e | 918 | return 0; |
79072805 LW |
919 | } |
920 | ||
921 | int | |
864dbfa3 | 922 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
923 | { |
924 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
925 | ||
926 | if (uf && uf->uf_val) | |
24f81a43 | 927 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
928 | return 0; |
929 | } | |
930 | ||
931 | int | |
864dbfa3 | 932 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
933 | { |
934 | register char *s; | |
88e89b8a | 935 | char *ptr; |
5aabfad6 | 936 | STRLEN len, klen; |
1e422769 | 937 | |
a0d0e21e | 938 | s = SvPV(sv,len); |
5aabfad6 | 939 | ptr = MgPV(mg,klen); |
88e89b8a | 940 | my_setenv(ptr, s); |
1e422769 | 941 | |
a0d0e21e LW |
942 | #ifdef DYNAMIC_ENV_FETCH |
943 | /* We just undefd an environment var. Is a replacement */ | |
944 | /* waiting in the wings? */ | |
945 | if (!len) { | |
5aabfad6 | 946 | SV **valp; |
6b88bc9c | 947 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 948 | s = SvPV(*valp, len); |
a0d0e21e LW |
949 | } |
950 | #endif | |
1e422769 | 951 | |
39e571d4 | 952 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
953 | /* And you'll never guess what the dog had */ |
954 | /* in its mouth... */ | |
3280af22 | 955 | if (PL_tainting) { |
1e422769 | 956 | MgTAINTEDDIR_off(mg); |
957 | #ifdef VMS | |
5aabfad6 | 958 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 959 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 960 | Stat_t sbuf; |
1e422769 | 961 | int i = 0, j = 0; |
962 | ||
963 | do { /* DCL$PATH may be a search list */ | |
964 | while (1) { /* as may dev portion of any element */ | |
965 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
966 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
967 | cando_by_name(S_IWUSR,0,elt) ) { | |
968 | MgTAINTEDDIR_on(mg); | |
969 | return 0; | |
970 | } | |
971 | } | |
972 | if ((cp = strchr(elt, ':')) != Nullch) | |
973 | *cp = '\0'; | |
974 | if (my_trnlnm(elt, eltbuf, j++)) | |
975 | elt = eltbuf; | |
976 | else | |
977 | break; | |
978 | } | |
979 | j = 0; | |
980 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
981 | } | |
982 | #endif /* VMS */ | |
5aabfad6 | 983 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 984 | char *strend = s + len; |
463ee0b2 LW |
985 | |
986 | while (s < strend) { | |
96827780 | 987 | char tmpbuf[256]; |
c623ac67 | 988 | Stat_t st; |
5f74f29c | 989 | I32 i; |
96827780 | 990 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 991 | s, strend, ':', &i); |
463ee0b2 | 992 | s++; |
96827780 MB |
993 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
994 | || *tmpbuf != '/' | |
c6ed36e1 | 995 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 996 | MgTAINTEDDIR_on(mg); |
1e422769 | 997 | return 0; |
998 | } | |
463ee0b2 | 999 | } |
79072805 LW |
1000 | } |
1001 | } | |
39e571d4 | 1002 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1003 | |
79072805 LW |
1004 | return 0; |
1005 | } | |
1006 | ||
1007 | int | |
864dbfa3 | 1008 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1009 | { |
2d8e6c8d GS |
1010 | STRLEN n_a; |
1011 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
1012 | return 0; |
1013 | } | |
1014 | ||
88e89b8a | 1015 | int |
864dbfa3 | 1016 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1017 | { |
1018 | #if defined(VMS) | |
cea2e8a9 | 1019 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1020 | #else |
3280af22 | 1021 | if (PL_localizing) { |
fb73857a | 1022 | HE* entry; |
2d8e6c8d | 1023 | STRLEN n_a; |
fb73857a | 1024 | magic_clear_all_env(sv,mg); |
1025 | hv_iterinit((HV*)sv); | |
155aba94 | 1026 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1027 | I32 keylen; |
1028 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 1029 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 1030 | } |
1031 | } | |
1032 | #endif | |
1033 | return 0; | |
1034 | } | |
1035 | ||
1036 | int | |
864dbfa3 | 1037 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1038 | { |
2f42fcb0 | 1039 | #ifndef PERL_MICRO |
ed79a026 | 1040 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 1041 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1042 | #else |
4efc5df6 | 1043 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1044 | PerlEnv_clearenv(); |
4efc5df6 GS |
1045 | # else |
1046 | # ifdef USE_ENVIRON_ARRAY | |
1047 | # if defined(USE_ITHREADS) | |
1048 | /* only the parent thread can clobber the process environment */ | |
1049 | if (PL_curinterp == aTHX) | |
1050 | # endif | |
1051 | { | |
1052 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
1053 | I32 i; |
1054 | ||
3280af22 | 1055 | if (environ == PL_origenviron) |
f2517201 | 1056 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1057 | else |
1058 | for (i = 0; environ[i]; i++) | |
f2517201 | 1059 | safesysfree(environ[i]); |
4efc5df6 | 1060 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1061 | |
66b1d557 | 1062 | environ[0] = Nullch; |
4efc5df6 GS |
1063 | } |
1064 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 | 1065 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
2f42fcb0 JH |
1066 | #endif /* VMS || EPOC */ |
1067 | #endif /* !PERL_MICRO */ | |
3e3baf6d | 1068 | return 0; |
66b1d557 HM |
1069 | } |
1070 | ||
2e34cc90 CL |
1071 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1072 | static int sig_handlers_initted = 0; | |
1073 | #endif | |
7719e241 | 1074 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1075 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1076 | #endif | |
2e34cc90 CL |
1077 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1078 | static int sig_defaulting[SIG_SIZE]; | |
1079 | #endif | |
85b332e2 | 1080 | |
64ca3a65 | 1081 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1082 | #ifdef HAS_SIGPROCMASK |
1083 | static void | |
1084 | restore_sigmask(pTHX_ SV *save_sv) | |
1085 | { | |
1086 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); | |
1087 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); | |
1088 | } | |
1089 | #endif | |
66b1d557 | 1090 | int |
864dbfa3 | 1091 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1092 | { |
1093 | I32 i; | |
2d8e6c8d | 1094 | STRLEN n_a; |
88e89b8a | 1095 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1096 | i = whichsig(MgPV(mg,n_a)); |
e02bfb16 | 1097 | if (i > 0) { |
22c35a8c GS |
1098 | if(PL_psig_ptr[i]) |
1099 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1100 | else { |
85b332e2 | 1101 | Sighandler_t sigstate; |
2e34cc90 | 1102 | sigstate = rsignal_state(i); |
23ada85b | 1103 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1104 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1105 | #endif | |
1106 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1107 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1108 | #endif |
88e89b8a | 1109 | /* cache state so we don't fetch it again */ |
ff68c719 | 1110 | if(sigstate == SIG_IGN) |
88e89b8a | 1111 | sv_setpv(sv,"IGNORE"); |
1112 | else | |
3280af22 | 1113 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1114 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1115 | SvTEMP_off(sv); |
1116 | } | |
1117 | } | |
1118 | return 0; | |
1119 | } | |
1120 | int | |
864dbfa3 | 1121 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1122 | { |
2d4fcd5e AJ |
1123 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1124 | * refactoring might be in order. | |
1125 | */ | |
1126 | register char *s; | |
2d8e6c8d | 1127 | STRLEN n_a; |
2d4fcd5e AJ |
1128 | SV* to_dec; |
1129 | s = MgPV(mg,n_a); | |
1130 | if (*s == '_') { | |
1131 | SV** svp; | |
1132 | if (strEQ(s,"__DIE__")) | |
1133 | svp = &PL_diehook; | |
1134 | else if (strEQ(s,"__WARN__")) | |
1135 | svp = &PL_warnhook; | |
1136 | else | |
1137 | Perl_croak(aTHX_ "No such hook: %s", s); | |
1138 | if (*svp) { | |
1139 | to_dec = *svp; | |
1140 | *svp = 0; | |
1141 | SvREFCNT_dec(to_dec); | |
1142 | } | |
1143 | } | |
1144 | else { | |
1145 | I32 i; | |
1146 | /* Are we clearing a signal entry? */ | |
1147 | i = whichsig(s); | |
e02bfb16 | 1148 | if (i > 0) { |
2d4fcd5e AJ |
1149 | #ifdef HAS_SIGPROCMASK |
1150 | sigset_t set, save; | |
1151 | SV* save_sv; | |
1152 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1153 | sigemptyset(&set); | |
1154 | sigaddset(&set,i); | |
1155 | sigprocmask(SIG_BLOCK, &set, &save); | |
1156 | ENTER; | |
1157 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1158 | SAVEFREESV(save_sv); | |
1159 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1160 | #endif | |
1161 | PERL_ASYNC_CHECK(); | |
1162 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
1163 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1164 | #endif | |
1165 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1166 | sig_defaulting[i] = 1; | |
5c1546dc | 1167 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1168 | #else |
1169 | (void)rsignal(i, SIG_DFL); | |
1170 | #endif | |
1171 | if(PL_psig_name[i]) { | |
1172 | SvREFCNT_dec(PL_psig_name[i]); | |
1173 | PL_psig_name[i]=0; | |
1174 | } | |
1175 | if(PL_psig_ptr[i]) { | |
1176 | to_dec=PL_psig_ptr[i]; | |
1177 | PL_psig_ptr[i]=0; | |
1178 | LEAVE; | |
1179 | SvREFCNT_dec(to_dec); | |
1180 | } | |
1181 | else | |
1182 | LEAVE; | |
1183 | } | |
88e89b8a | 1184 | } |
1185 | return 0; | |
1186 | } | |
3d37d572 | 1187 | |
0a8e0eff NIS |
1188 | void |
1189 | Perl_raise_signal(pTHX_ int sig) | |
1190 | { | |
1191 | /* Set a flag to say this signal is pending */ | |
1192 | PL_psig_pend[sig]++; | |
1193 | /* And one to say _a_ signal is pending */ | |
1194 | PL_sig_pending = 1; | |
1195 | } | |
1196 | ||
1197 | Signal_t | |
1198 | Perl_csighandler(int sig) | |
1199 | { | |
1018e26f NIS |
1200 | #ifdef PERL_GET_SIG_CONTEXT |
1201 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1202 | #else | |
85b332e2 CL |
1203 | dTHX; |
1204 | #endif | |
23ada85b | 1205 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc | 1206 | (void) rsignal(sig, PL_csighandlerp); |
85b332e2 CL |
1207 | if (sig_ignoring[sig]) return; |
1208 | #endif | |
2e34cc90 | 1209 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1210 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1211 | #ifdef KILL_BY_SIGPRC |
1212 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1213 | #else | |
1214 | exit(1); | |
1215 | #endif | |
1216 | #endif | |
4ffa73a3 JH |
1217 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1218 | /* Call the perl level handler now-- | |
1219 | * with risk we may be in malloc() etc. */ | |
1220 | (*PL_sighandlerp)(sig); | |
1221 | else | |
1222 | Perl_raise_signal(aTHX_ sig); | |
0a8e0eff NIS |
1223 | } |
1224 | ||
2e34cc90 CL |
1225 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1226 | void | |
1227 | Perl_csighandler_init(void) | |
1228 | { | |
1229 | int sig; | |
1230 | if (sig_handlers_initted) return; | |
1231 | ||
1232 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1233 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1234 | dTHX; |
2e34cc90 | 1235 | sig_defaulting[sig] = 1; |
5c1546dc | 1236 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1237 | #endif |
1238 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1239 | sig_ignoring[sig] = 0; | |
1240 | #endif | |
1241 | } | |
1242 | sig_handlers_initted = 1; | |
1243 | } | |
1244 | #endif | |
1245 | ||
0a8e0eff NIS |
1246 | void |
1247 | Perl_despatch_signals(pTHX) | |
1248 | { | |
1249 | int sig; | |
1250 | PL_sig_pending = 0; | |
1251 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1252 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1253 | PERL_BLOCKSIG_ADD(set, sig); |
1254 | PL_psig_pend[sig] = 0; | |
1255 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1256 | (*PL_sighandlerp)(sig); |
25da4428 | 1257 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1258 | } |
1259 | } | |
1260 | } | |
1261 | ||
85e6fe83 | 1262 | int |
864dbfa3 | 1263 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1264 | { |
1265 | register char *s; | |
1266 | I32 i; | |
b7953727 | 1267 | SV** svp = 0; |
2d4fcd5e AJ |
1268 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1269 | * effects (due to closures). We must make sure that the new disposition | |
1270 | * is in place before it is called. | |
1271 | */ | |
1272 | SV* to_dec = 0; | |
e72dc28c | 1273 | STRLEN len; |
2d4fcd5e AJ |
1274 | #ifdef HAS_SIGPROCMASK |
1275 | sigset_t set, save; | |
1276 | SV* save_sv; | |
1277 | #endif | |
a0d0e21e | 1278 | |
e72dc28c | 1279 | s = MgPV(mg,len); |
748a9306 LW |
1280 | if (*s == '_') { |
1281 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1282 | svp = &PL_diehook; |
748a9306 | 1283 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1284 | svp = &PL_warnhook; |
748a9306 | 1285 | else |
cea2e8a9 | 1286 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1287 | i = 0; |
4633a7c4 | 1288 | if (*svp) { |
2d4fcd5e | 1289 | to_dec = *svp; |
4633a7c4 LW |
1290 | *svp = 0; |
1291 | } | |
748a9306 LW |
1292 | } |
1293 | else { | |
1294 | i = whichsig(s); /* ...no, a brick */ | |
e02bfb16 | 1295 | if (i < 0) { |
e476b1b5 | 1296 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1297 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1298 | return 0; |
1299 | } | |
2d4fcd5e AJ |
1300 | #ifdef HAS_SIGPROCMASK |
1301 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1302 | sigemptyset(&set); | |
1303 | sigaddset(&set,i); | |
1304 | sigprocmask(SIG_BLOCK, &set, &save); | |
1305 | ENTER; | |
1306 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1307 | SAVEFREESV(save_sv); | |
1308 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1309 | #endif | |
1310 | PERL_ASYNC_CHECK(); | |
2e34cc90 CL |
1311 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1312 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1313 | #endif | |
23ada85b | 1314 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1315 | sig_ignoring[i] = 0; |
1316 | #endif | |
2e34cc90 | 1317 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
2d4fcd5e | 1318 | sig_defaulting[i] = 0; |
2e34cc90 | 1319 | #endif |
22c35a8c | 1320 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1321 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1322 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1323 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1324 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1325 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1326 | } |
a0d0e21e | 1327 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1328 | if (i) { |
5c1546dc | 1329 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1330 | #ifdef HAS_SIGPROCMASK |
1331 | LEAVE; | |
1332 | #endif | |
1333 | } | |
748a9306 LW |
1334 | else |
1335 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1336 | if(to_dec) |
1337 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1338 | return 0; |
1339 | } | |
e72dc28c | 1340 | s = SvPV_force(sv,len); |
748a9306 | 1341 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1342 | if (i) { |
23ada85b | 1343 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 1344 | sig_ignoring[i] = 1; |
5c1546dc | 1345 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1346 | #else |
ff68c719 | 1347 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1348 | #endif |
2d4fcd5e | 1349 | } |
748a9306 LW |
1350 | } |
1351 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1352 | if (i) | |
2e34cc90 CL |
1353 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1354 | { | |
1355 | sig_defaulting[i] = 1; | |
5c1546dc | 1356 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1357 | } |
1358 | #else | |
ff68c719 | 1359 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1360 | #endif |
748a9306 | 1361 | } |
79072805 | 1362 | else { |
5aabfad6 | 1363 | /* |
1364 | * We should warn if HINT_STRICT_REFS, but without | |
1365 | * access to a known hint bit in a known OP, we can't | |
1366 | * tell whether HINT_STRICT_REFS is in force or not. | |
1367 | */ | |
46fc3d4c | 1368 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1369 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1370 | if (i) |
5c1546dc | 1371 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1372 | else |
1373 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1374 | } |
2d4fcd5e AJ |
1375 | #ifdef HAS_SIGPROCMASK |
1376 | if(i) | |
1377 | LEAVE; | |
1378 | #endif | |
1379 | if(to_dec) | |
1380 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1381 | return 0; |
1382 | } | |
64ca3a65 | 1383 | #endif /* !PERL_MICRO */ |
79072805 LW |
1384 | |
1385 | int | |
864dbfa3 | 1386 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1387 | { |
3280af22 | 1388 | PL_sub_generation++; |
463ee0b2 LW |
1389 | return 0; |
1390 | } | |
1391 | ||
1392 | int | |
864dbfa3 | 1393 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1394 | { |
a0d0e21e | 1395 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1396 | PL_amagic_generation++; |
463ee0b2 | 1397 | |
a0d0e21e LW |
1398 | return 0; |
1399 | } | |
463ee0b2 | 1400 | |
946ec16e | 1401 | int |
864dbfa3 | 1402 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1403 | { |
1404 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1405 | I32 i = 0; |
7719e241 | 1406 | |
6ff81951 | 1407 | if (hv) { |
497b47a8 JH |
1408 | (void) hv_iterinit(hv); |
1409 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1410 | i = HvKEYS(hv); | |
1411 | else { | |
1412 | while (hv_iternext(hv)) | |
1413 | i++; | |
1414 | } | |
6ff81951 GS |
1415 | } |
1416 | ||
1417 | sv_setiv(sv, (IV)i); | |
1418 | return 0; | |
1419 | } | |
1420 | ||
1421 | int | |
864dbfa3 | 1422 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1423 | { |
1424 | if (LvTARG(sv)) { | |
1425 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1426 | } |
1427 | return 0; | |
ac27b0f5 | 1428 | } |
946ec16e | 1429 | |
e336de0d | 1430 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1431 | STATIC int |
cea2e8a9 | 1432 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1433 | { |
1434 | dSP; | |
463ee0b2 | 1435 | |
924508f0 GS |
1436 | PUSHMARK(SP); |
1437 | EXTEND(SP, n); | |
33c27489 | 1438 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1439 | if (n > 1) { |
93965878 | 1440 | if (mg->mg_ptr) { |
565764a8 | 1441 | if (mg->mg_len >= 0) |
79cb57f6 | 1442 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1443 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1444 | PUSHs((SV*)mg->mg_ptr); |
1445 | } | |
14befaf4 | 1446 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1447 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1448 | } |
1449 | } | |
1450 | if (n > 2) { | |
1451 | PUSHs(val); | |
88e89b8a | 1452 | } |
463ee0b2 LW |
1453 | PUTBACK; |
1454 | ||
864dbfa3 | 1455 | return call_method(meth, flags); |
946ec16e | 1456 | } |
1457 | ||
76e3520e | 1458 | STATIC int |
cea2e8a9 | 1459 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1460 | { |
1461 | dSP; | |
463ee0b2 | 1462 | |
a0d0e21e LW |
1463 | ENTER; |
1464 | SAVETMPS; | |
e788e7d3 | 1465 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1466 | |
33c27489 | 1467 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1468 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1469 | } |
463ee0b2 | 1470 | |
d3acc0f7 | 1471 | POPSTACK; |
a0d0e21e LW |
1472 | FREETMPS; |
1473 | LEAVE; | |
1474 | return 0; | |
1475 | } | |
463ee0b2 | 1476 | |
a0d0e21e | 1477 | int |
864dbfa3 | 1478 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1479 | { |
a0d0e21e LW |
1480 | if (mg->mg_ptr) |
1481 | mg->mg_flags |= MGf_GSKIP; | |
58f82c5c | 1482 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1483 | return 0; |
1484 | } | |
1485 | ||
1486 | int | |
864dbfa3 | 1487 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1488 | { |
1489 | dSP; | |
a60c0954 | 1490 | ENTER; |
e788e7d3 | 1491 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1492 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1493 | POPSTACK; |
a60c0954 | 1494 | LEAVE; |
463ee0b2 LW |
1495 | return 0; |
1496 | } | |
1497 | ||
1498 | int | |
864dbfa3 | 1499 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1500 | { |
a0d0e21e LW |
1501 | return magic_methpack(sv,mg,"DELETE"); |
1502 | } | |
463ee0b2 | 1503 | |
93965878 NIS |
1504 | |
1505 | U32 | |
864dbfa3 | 1506 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1507 | { |
e336de0d | 1508 | dSP; |
93965878 NIS |
1509 | U32 retval = 0; |
1510 | ||
1511 | ENTER; | |
1512 | SAVETMPS; | |
e788e7d3 | 1513 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1514 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1515 | sv = *PL_stack_sp--; |
a60c0954 | 1516 | retval = (U32) SvIV(sv)-1; |
93965878 | 1517 | } |
d3acc0f7 | 1518 | POPSTACK; |
93965878 NIS |
1519 | FREETMPS; |
1520 | LEAVE; | |
1521 | return retval; | |
1522 | } | |
1523 | ||
cea2e8a9 GS |
1524 | int |
1525 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1526 | { |
1527 | dSP; | |
463ee0b2 | 1528 | |
e336de0d | 1529 | ENTER; |
e788e7d3 | 1530 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1531 | PUSHMARK(SP); |
33c27489 | 1532 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1533 | PUTBACK; |
864dbfa3 | 1534 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1535 | POPSTACK; |
a60c0954 | 1536 | LEAVE; |
463ee0b2 LW |
1537 | return 0; |
1538 | } | |
1539 | ||
1540 | int | |
864dbfa3 | 1541 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1542 | { |
463ee0b2 | 1543 | dSP; |
dff6d3cd | 1544 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1545 | |
1546 | ENTER; | |
a0d0e21e | 1547 | SAVETMPS; |
e788e7d3 | 1548 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1549 | PUSHMARK(SP); |
1550 | EXTEND(SP, 2); | |
33c27489 | 1551 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1552 | if (SvOK(key)) |
1553 | PUSHs(key); | |
1554 | PUTBACK; | |
1555 | ||
864dbfa3 | 1556 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1557 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1558 | |
d3acc0f7 | 1559 | POPSTACK; |
a0d0e21e LW |
1560 | FREETMPS; |
1561 | LEAVE; | |
79072805 LW |
1562 | return 0; |
1563 | } | |
1564 | ||
1565 | int | |
864dbfa3 | 1566 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1567 | { |
1568 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1569 | } |
a0d0e21e LW |
1570 | |
1571 | int | |
864dbfa3 | 1572 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1573 | { |
1574 | OP *o; | |
1575 | I32 i; | |
1576 | GV* gv; | |
1577 | SV** svp; | |
2d8e6c8d | 1578 | STRLEN n_a; |
79072805 | 1579 | |
3280af22 | 1580 | gv = PL_DBline; |
79072805 | 1581 | i = SvTRUE(sv); |
188ea221 | 1582 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1583 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 DM |
1584 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1585 | /* set or clear breakpoint in the relevant control op */ | |
1586 | if (i) | |
1587 | o->op_flags |= OPf_SPECIAL; | |
1588 | else | |
1589 | o->op_flags &= ~OPf_SPECIAL; | |
1590 | } | |
79072805 LW |
1591 | return 0; |
1592 | } | |
1593 | ||
1594 | int | |
864dbfa3 | 1595 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1596 | { |
3280af22 | 1597 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1598 | return 0; |
1599 | } | |
1600 | ||
1601 | int | |
864dbfa3 | 1602 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1603 | { |
3280af22 | 1604 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1605 | return 0; |
1606 | } | |
1607 | ||
1608 | int | |
864dbfa3 | 1609 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1610 | { |
1611 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1612 | |
a0d0e21e | 1613 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1614 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1615 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1616 | I32 i = mg->mg_len; |
7e2040f0 | 1617 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1618 | sv_pos_b2u(lsv, &i); |
1619 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1620 | return 0; |
1621 | } | |
1622 | } | |
1623 | (void)SvOK_off(sv); | |
1624 | return 0; | |
1625 | } | |
1626 | ||
1627 | int | |
864dbfa3 | 1628 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1629 | { |
1630 | SV* lsv = LvTARG(sv); | |
1631 | SSize_t pos; | |
1632 | STRLEN len; | |
c00206c8 | 1633 | STRLEN ulen = 0; |
a0d0e21e LW |
1634 | |
1635 | mg = 0; | |
ac27b0f5 | 1636 | |
a0d0e21e | 1637 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1638 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1639 | if (!mg) { |
1640 | if (!SvOK(sv)) | |
1641 | return 0; | |
14befaf4 DM |
1642 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1643 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1644 | } |
1645 | else if (!SvOK(sv)) { | |
565764a8 | 1646 | mg->mg_len = -1; |
a0d0e21e LW |
1647 | return 0; |
1648 | } | |
1649 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1650 | ||
c485e607 | 1651 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1652 | |
7e2040f0 | 1653 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1654 | ulen = sv_len_utf8(lsv); |
1655 | if (ulen) | |
1656 | len = ulen; | |
a0ed51b3 LW |
1657 | } |
1658 | ||
a0d0e21e LW |
1659 | if (pos < 0) { |
1660 | pos += len; | |
1661 | if (pos < 0) | |
1662 | pos = 0; | |
1663 | } | |
eb160463 | 1664 | else if (pos > (SSize_t)len) |
a0d0e21e | 1665 | pos = len; |
a0ed51b3 LW |
1666 | |
1667 | if (ulen) { | |
1668 | I32 p = pos; | |
1669 | sv_pos_u2b(lsv, &p, 0); | |
1670 | pos = p; | |
1671 | } | |
727405f8 | 1672 | |
565764a8 | 1673 | mg->mg_len = pos; |
71be2cbc | 1674 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1675 | |
79072805 LW |
1676 | return 0; |
1677 | } | |
1678 | ||
1679 | int | |
864dbfa3 | 1680 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1681 | { |
8646b087 | 1682 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1683 | SvFAKE_off(sv); | |
946ec16e | 1684 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1685 | SvFAKE_on(sv); |
1686 | } | |
1687 | else | |
946ec16e | 1688 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1689 | return 0; |
1690 | } | |
1691 | ||
1692 | int | |
864dbfa3 | 1693 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1694 | { |
1695 | register char *s; | |
1696 | GV* gv; | |
2d8e6c8d | 1697 | STRLEN n_a; |
79072805 LW |
1698 | |
1699 | if (!SvOK(sv)) | |
1700 | return 0; | |
2d8e6c8d | 1701 | s = SvPV(sv, n_a); |
79072805 LW |
1702 | if (*s == '*' && s[1]) |
1703 | s++; | |
85e6fe83 | 1704 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1705 | if (sv == (SV*)gv) |
1706 | return 0; | |
1707 | if (GvGP(sv)) | |
88e89b8a | 1708 | gp_free((GV*)sv); |
79072805 | 1709 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1710 | return 0; |
1711 | } | |
1712 | ||
1713 | int | |
864dbfa3 | 1714 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1715 | { |
1716 | STRLEN len; | |
1717 | SV *lsv = LvTARG(sv); | |
1718 | char *tmps = SvPV(lsv,len); | |
1719 | I32 offs = LvTARGOFF(sv); | |
1720 | I32 rem = LvTARGLEN(sv); | |
1721 | ||
9aa983d2 JH |
1722 | if (SvUTF8(lsv)) |
1723 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1724 | if (offs > (I32)len) |
6ff81951 | 1725 | offs = len; |
eb160463 | 1726 | if (rem + offs > (I32)len) |
6ff81951 GS |
1727 | rem = len - offs; |
1728 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1729 | if (SvUTF8(lsv)) |
2ef4b674 | 1730 | SvUTF8_on(sv); |
6ff81951 GS |
1731 | return 0; |
1732 | } | |
1733 | ||
1734 | int | |
864dbfa3 | 1735 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1736 | { |
9aa983d2 JH |
1737 | STRLEN len; |
1738 | char *tmps = SvPV(sv, len); | |
1739 | SV *lsv = LvTARG(sv); | |
1740 | I32 lvoff = LvTARGOFF(sv); | |
1741 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1742 | |
1aa99e6b | 1743 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1744 | sv_utf8_upgrade(lsv); |
1745 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1746 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1747 | SvUTF8_on(lsv); | |
1748 | } | |
9bf12eaf | 1749 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1750 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1751 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1752 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1753 | Safefree(tmps); | |
1aa99e6b IH |
1754 | } |
1755 | else | |
9aa983d2 | 1756 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1757 | |
79072805 LW |
1758 | return 0; |
1759 | } | |
1760 | ||
1761 | int | |
864dbfa3 | 1762 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1763 | { |
565764a8 | 1764 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1765 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1766 | return 0; |
1767 | } | |
1768 | ||
1769 | int | |
864dbfa3 | 1770 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1771 | { |
3280af22 NIS |
1772 | if (PL_localizing) { |
1773 | if (PL_localizing == 1) | |
565764a8 | 1774 | mg->mg_len <<= 1; |
748a9306 | 1775 | else |
565764a8 | 1776 | mg->mg_len >>= 1; |
a0d0e21e | 1777 | } |
3280af22 | 1778 | else if (PL_tainted) |
565764a8 | 1779 | mg->mg_len |= 1; |
748a9306 | 1780 | else |
565764a8 | 1781 | mg->mg_len &= ~1; |
463ee0b2 LW |
1782 | return 0; |
1783 | } | |
1784 | ||
1785 | int | |
864dbfa3 | 1786 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1787 | { |
1788 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1789 | |
1790 | if (!lsv) { | |
155aba94 | 1791 | (void)SvOK_off(sv); |
6ff81951 GS |
1792 | return 0; |
1793 | } | |
6ff81951 | 1794 | |
81e118e0 | 1795 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1796 | return 0; |
1797 | } | |
1798 | ||
1799 | int | |
864dbfa3 | 1800 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1801 | { |
1802 | do_vecset(sv); /* XXX slurp this routine */ | |
1803 | return 0; | |
1804 | } | |
1805 | ||
1806 | int | |
864dbfa3 | 1807 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1808 | { |
71be2cbc | 1809 | SV *targ = Nullsv; |
5f05dabc | 1810 | if (LvTARGLEN(sv)) { |
68dc0745 | 1811 | if (mg->mg_obj) { |
74e13ce4 | 1812 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1813 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1814 | if (he) | |
1815 | targ = HeVAL(he); | |
68dc0745 | 1816 | } |
1817 | else { | |
3c78fafa | 1818 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1819 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1820 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1821 | } | |
3280af22 | 1822 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1823 | /* somebody else defined it for us */ |
1824 | SvREFCNT_dec(LvTARG(sv)); | |
1825 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1826 | LvTARGLEN(sv) = 0; | |
1827 | SvREFCNT_dec(mg->mg_obj); | |
1828 | mg->mg_obj = Nullsv; | |
1829 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1830 | } | |
5f05dabc | 1831 | } |
71be2cbc | 1832 | else |
1833 | targ = LvTARG(sv); | |
3280af22 | 1834 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1835 | return 0; |
1836 | } | |
1837 | ||
1838 | int | |
864dbfa3 | 1839 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1840 | { |
1841 | if (LvTARGLEN(sv)) | |
68dc0745 | 1842 | vivify_defelem(sv); |
1843 | if (LvTARG(sv)) { | |
5f05dabc | 1844 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1845 | SvSETMAGIC(LvTARG(sv)); |
1846 | } | |
5f05dabc | 1847 | return 0; |
1848 | } | |
1849 | ||
71be2cbc | 1850 | void |
864dbfa3 | 1851 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1852 | { |
74e13ce4 GS |
1853 | MAGIC *mg; |
1854 | SV *value = Nullsv; | |
71be2cbc | 1855 | |
14befaf4 | 1856 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1857 | return; |
68dc0745 | 1858 | if (mg->mg_obj) { |
74e13ce4 | 1859 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1860 | STRLEN n_a; |
6d822dc4 MS |
1861 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1862 | if (he) | |
1863 | value = HeVAL(he); | |
3280af22 | 1864 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1865 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1866 | } |
68dc0745 | 1867 | else { |
1868 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1869 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1870 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1871 | else { | |
1872 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1873 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1874 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1875 | } |
1876 | } | |
3e3baf6d | 1877 | (void)SvREFCNT_inc(value); |
68dc0745 | 1878 | SvREFCNT_dec(LvTARG(sv)); |
1879 | LvTARG(sv) = value; | |
71be2cbc | 1880 | LvTARGLEN(sv) = 0; |
68dc0745 | 1881 | SvREFCNT_dec(mg->mg_obj); |
1882 | mg->mg_obj = Nullsv; | |
1883 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1884 | } |
1885 | ||
1886 | int | |
864dbfa3 | 1887 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1888 | { |
1889 | AV *av = (AV*)mg->mg_obj; | |
1890 | SV **svp = AvARRAY(av); | |
1891 | I32 i = AvFILLp(av); | |
1892 | while (i >= 0) { | |
1893 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1894 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1895 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1896 | /* XXX Should we check that it hasn't changed? */ |
1897 | SvRV(svp[i]) = 0; | |
155aba94 | 1898 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1899 | SvWEAKREF_off(svp[i]); |
1900 | svp[i] = &PL_sv_undef; | |
1901 | } | |
1902 | i--; | |
1903 | } | |
d99b02a1 | 1904 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
1905 | return 0; |
1906 | } | |
1907 | ||
1908 | int | |
864dbfa3 | 1909 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1910 | { |
565764a8 | 1911 | mg->mg_len = -1; |
c6496cc7 | 1912 | SvSCREAM_off(sv); |
93a17b20 LW |
1913 | return 0; |
1914 | } | |
1915 | ||
1916 | int | |
864dbfa3 | 1917 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1918 | { |
14befaf4 | 1919 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1920 | SvVALID_off(sv); |
1921 | return 0; | |
1922 | } | |
1923 | ||
1924 | int | |
864dbfa3 | 1925 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1926 | { |
14befaf4 | 1927 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1928 | SvCOMPILED_off(sv); |
1929 | return 0; | |
1930 | } | |
1931 | ||
1932 | int | |
864dbfa3 | 1933 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1934 | { |
1935 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1936 | ||
1937 | if (uf && uf->uf_set) | |
24f81a43 | 1938 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1939 | return 0; |
1940 | } | |
1941 | ||
c277df42 | 1942 | int |
faf82a0b AE |
1943 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
1944 | { | |
1945 | sv_unmagic(sv, PERL_MAGIC_qr); | |
1946 | return 0; | |
1947 | } | |
1948 | ||
1949 | int | |
864dbfa3 | 1950 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1951 | { |
1952 | regexp *re = (regexp *)mg->mg_obj; | |
1953 | ReREFCNT_dec(re); | |
1954 | return 0; | |
1955 | } | |
1956 | ||
7a4c00b4 | 1957 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1958 | int |
864dbfa3 | 1959 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1960 | { |
1961 | /* | |
838b5b74 | 1962 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1963 | * and vanished with a faint plop. |
1964 | */ | |
7a4c00b4 | 1965 | if (mg->mg_ptr) { |
1966 | Safefree(mg->mg_ptr); | |
1967 | mg->mg_ptr = NULL; | |
565764a8 | 1968 | mg->mg_len = -1; |
7a4c00b4 | 1969 | } |
bbce6d69 | 1970 | return 0; |
1971 | } | |
7a4c00b4 | 1972 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1973 | |
7e8c5dac HS |
1974 | /* Just clear the UTF-8 cache data. */ |
1975 | int | |
1976 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
1977 | { | |
1978 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ | |
1979 | mg->mg_ptr = 0; | |
1980 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
1981 | return 0; | |
1982 | } | |
1983 | ||
bbce6d69 | 1984 | int |
864dbfa3 | 1985 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1986 | { |
1987 | register char *s; | |
1988 | I32 i; | |
8990e307 | 1989 | STRLEN len; |
79072805 | 1990 | switch (*mg->mg_ptr) { |
748a9306 | 1991 | case '\001': /* ^A */ |
3280af22 | 1992 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1993 | break; |
49460fe6 | 1994 | case '\003': /* ^C */ |
eb160463 | 1995 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
1996 | break; |
1997 | ||
79072805 | 1998 | case '\004': /* ^D */ |
b4ab917c DM |
1999 | #ifdef DEBUGGING |
2000 | s = SvPV_nolen(sv); | |
2001 | PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG; | |
79072805 | 2002 | DEBUG_x(dump_all()); |
b4ab917c DM |
2003 | #else |
2004 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
2005 | #endif | |
79072805 | 2006 | break; |
28f23441 | 2007 | case '\005': /* ^E */ |
d0063567 | 2008 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2009 | #ifdef MACOS_TRADITIONAL |
d0063567 | 2010 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2011 | #else |
cd39f2b6 | 2012 | # ifdef VMS |
d0063567 | 2013 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2014 | # else |
cd39f2b6 | 2015 | # ifdef WIN32 |
d0063567 | 2016 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2017 | # else |
9fed8b87 | 2018 | # ifdef OS2 |
d0063567 | 2019 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2020 | # else |
d0063567 DK |
2021 | /* will anyone ever use this? */ |
2022 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2023 | # endif |
048c1ddf IZ |
2024 | # endif |
2025 | # endif | |
22fae026 | 2026 | #endif |
d0063567 DK |
2027 | } |
2028 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2029 | if (PL_encoding) | |
2030 | SvREFCNT_dec(PL_encoding); | |
2031 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2032 | PL_encoding = newSVsv(sv); | |
2033 | } | |
2034 | else { | |
2035 | PL_encoding = Nullsv; | |
2036 | } | |
2037 | } | |
2038 | break; | |
79072805 | 2039 | case '\006': /* ^F */ |
3280af22 | 2040 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2041 | break; |
a0d0e21e | 2042 | case '\010': /* ^H */ |
3280af22 | 2043 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2044 | break; |
9d116dd7 | 2045 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2046 | if (PL_inplace) |
2047 | Safefree(PL_inplace); | |
79072805 | 2048 | if (SvOK(sv)) |
2d8e6c8d | 2049 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 2050 | else |
3280af22 | 2051 | PL_inplace = Nullch; |
79072805 | 2052 | break; |
28f23441 | 2053 | case '\017': /* ^O */ |
ac27b0f5 NIS |
2054 | if (*(mg->mg_ptr+1) == '\0') { |
2055 | if (PL_osname) | |
2056 | Safefree(PL_osname); | |
2057 | if (SvOK(sv)) | |
2058 | PL_osname = savepv(SvPV(sv,len)); | |
2059 | else | |
2060 | PL_osname = Nullch; | |
2061 | } | |
2062 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2063 | if (!PL_compiling.cop_io) | |
2064 | PL_compiling.cop_io = newSVsv(sv); | |
2065 | else | |
2066 | sv_setsv(PL_compiling.cop_io,sv); | |
2067 | } | |
28f23441 | 2068 | break; |
79072805 | 2069 | case '\020': /* ^P */ |
3280af22 | 2070 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
2071 | if (PL_perldb && !PL_DBsingle) |
2072 | init_debugger(); | |
79072805 LW |
2073 | break; |
2074 | case '\024': /* ^T */ | |
88e89b8a | 2075 | #ifdef BIG_TIME |
6b88bc9c | 2076 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2077 | #else |
3280af22 | 2078 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2079 | #endif |
79072805 | 2080 | break; |
fde18df1 | 2081 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2082 | if (*(mg->mg_ptr+1) == '\0') { |
2083 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2084 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2085 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2086 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2087 | } |
599cee73 | 2088 | } |
0a378802 | 2089 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2090 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2091 | if (!SvPOK(sv) && PL_localizing) { |
2092 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2093 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2094 | break; |
2095 | } | |
f4fc7782 | 2096 | { |
b5477537 | 2097 | STRLEN len, i; |
d3a7d8c7 | 2098 | int accumulate = 0 ; |
f4fc7782 | 2099 | int any_fatals = 0 ; |
d3a7d8c7 | 2100 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
2101 | for (i = 0 ; i < len ; ++i) { |
2102 | accumulate |= ptr[i] ; | |
2103 | any_fatals |= (ptr[i] & 0xAA) ; | |
2104 | } | |
d3a7d8c7 GS |
2105 | if (!accumulate) |
2106 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2107 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2108 | PL_compiling.cop_warnings = pWARN_ALL; | |
2109 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2110 | } |
d3a7d8c7 GS |
2111 | else { |
2112 | if (specialWARN(PL_compiling.cop_warnings)) | |
2113 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2114 | else | |
2115 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2116 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2117 | PL_dowarn |= G_WARN_ONCE ; | |
2118 | } | |
f4fc7782 | 2119 | |
d3a7d8c7 | 2120 | } |
4438c4b7 | 2121 | } |
971a9dd3 | 2122 | } |
79072805 LW |
2123 | break; |
2124 | case '.': | |
3280af22 NIS |
2125 | if (PL_localizing) { |
2126 | if (PL_localizing == 1) | |
7766f137 | 2127 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2128 | } |
3280af22 | 2129 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2130 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2131 | break; |
2132 | case '^': | |
3280af22 | 2133 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2134 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2135 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2136 | break; |
2137 | case '~': | |
3280af22 | 2138 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2139 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2140 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2141 | break; |
2142 | case '=': | |
632db599 | 2143 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2144 | break; |
2145 | case '-': | |
632db599 | 2146 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2147 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2148 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2149 | break; |
2150 | case '%': | |
632db599 | 2151 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2152 | break; |
2153 | case '|': | |
4b65379b | 2154 | { |
3280af22 | 2155 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2156 | if(!io) |
2157 | break; | |
4b65379b CS |
2158 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2159 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2160 | else { | |
2161 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2162 | PerlIO *ofp = IoOFP(io); | |
2163 | if (ofp) | |
2164 | (void)PerlIO_flush(ofp); | |
2165 | IoFLAGS(io) |= IOf_FLUSH; | |
2166 | } | |
2167 | } | |
79072805 LW |
2168 | } |
2169 | break; | |
79072805 | 2170 | case '/': |
3280af22 | 2171 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2172 | PL_rs = newSVsv(sv); |
79072805 LW |
2173 | break; |
2174 | case '\\': | |
7889fe52 NIS |
2175 | if (PL_ors_sv) |
2176 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2177 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2178 | PL_ors_sv = newSVsv(sv); |
009c130f | 2179 | } |
e3c19b7b | 2180 | else { |
7889fe52 | 2181 | PL_ors_sv = Nullsv; |
e3c19b7b | 2182 | } |
79072805 LW |
2183 | break; |
2184 | case ',': | |
7889fe52 NIS |
2185 | if (PL_ofs_sv) |
2186 | SvREFCNT_dec(PL_ofs_sv); | |
2187 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2188 | PL_ofs_sv = newSVsv(sv); | |
2189 | } | |
2190 | else { | |
2191 | PL_ofs_sv = Nullsv; | |
2192 | } | |
79072805 LW |
2193 | break; |
2194 | case '#': | |
3280af22 NIS |
2195 | if (PL_ofmt) |
2196 | Safefree(PL_ofmt); | |
2d8e6c8d | 2197 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2198 | break; |
2199 | case '[': | |
3280af22 | 2200 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2201 | break; |
2202 | case '?': | |
ff0cee69 | 2203 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2204 | if (PL_localizing == 2) { |
2205 | PL_statusvalue = LvTARGOFF(sv); | |
2206 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2207 | } |
2208 | else | |
2209 | #endif | |
2210 | #ifdef VMSISH_STATUS | |
2211 | if (VMSISH_STATUS) | |
2212 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2213 | else | |
2214 | #endif | |
2215 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2216 | break; |
2217 | case '!': | |
93189314 JH |
2218 | { |
2219 | #ifdef VMS | |
2220 | # define PERL_VMS_BANG vaxc$errno | |
2221 | #else | |
2222 | # define PERL_VMS_BANG 0 | |
2223 | #endif | |
91487cfc | 2224 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2225 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2226 | } | |
79072805 LW |
2227 | break; |
2228 | case '<': | |
3280af22 NIS |
2229 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2230 | if (PL_delaymagic) { | |
2231 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2232 | break; /* don't do magic till later */ |
2233 | } | |
2234 | #ifdef HAS_SETRUID | |
b28d0864 | 2235 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2236 | #else |
2237 | #ifdef HAS_SETREUID | |
3280af22 | 2238 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2239 | #else |
85e6fe83 | 2240 | #ifdef HAS_SETRESUID |
b28d0864 | 2241 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2242 | #else |
75870ed3 | 2243 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2244 | #ifdef PERL_DARWIN | |
2245 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2246 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2247 | (void)PerlProc_setuid(0); | |
2248 | #endif | |
b28d0864 | 2249 | (void)PerlProc_setuid(PL_uid); |
75870ed3 | 2250 | } else { |
d8eceb89 | 2251 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2252 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2253 | } |
79072805 LW |
2254 | #endif |
2255 | #endif | |
85e6fe83 | 2256 | #endif |
d8eceb89 | 2257 | PL_uid = PerlProc_getuid(); |
3280af22 | 2258 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2259 | break; |
2260 | case '>': | |
3280af22 NIS |
2261 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2262 | if (PL_delaymagic) { | |
2263 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2264 | break; /* don't do magic till later */ |
2265 | } | |
2266 | #ifdef HAS_SETEUID | |
3280af22 | 2267 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2268 | #else |
2269 | #ifdef HAS_SETREUID | |
b28d0864 | 2270 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2271 | #else |
2272 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2273 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2274 | #else |
b28d0864 NIS |
2275 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2276 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2277 | else { |
e8ee3774 | 2278 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2279 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2280 | } |
79072805 LW |
2281 | #endif |
2282 | #endif | |
85e6fe83 | 2283 | #endif |
d8eceb89 | 2284 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2285 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2286 | break; |
2287 | case '(': | |
3280af22 NIS |
2288 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2289 | if (PL_delaymagic) { | |
2290 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2291 | break; /* don't do magic till later */ |
2292 | } | |
2293 | #ifdef HAS_SETRGID | |
b28d0864 | 2294 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2295 | #else |
2296 | #ifdef HAS_SETREGID | |
3280af22 | 2297 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2298 | #else |
2299 | #ifdef HAS_SETRESGID | |
b28d0864 | 2300 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2301 | #else |
b28d0864 NIS |
2302 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2303 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2304 | else { |
d8eceb89 | 2305 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2306 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2307 | } |
79072805 LW |
2308 | #endif |
2309 | #endif | |
85e6fe83 | 2310 | #endif |
d8eceb89 | 2311 | PL_gid = PerlProc_getgid(); |
3280af22 | 2312 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2313 | break; |
2314 | case ')': | |
5cd24f17 | 2315 | #ifdef HAS_SETGROUPS |
2316 | { | |
2d8e6c8d | 2317 | char *p = SvPV(sv, len); |
5cd24f17 | 2318 | Groups_t gary[NGROUPS]; |
2319 | ||
5cd24f17 | 2320 | while (isSPACE(*p)) |
2321 | ++p; | |
2d4389e4 | 2322 | PL_egid = Atol(p); |
5cd24f17 | 2323 | for (i = 0; i < NGROUPS; ++i) { |
2324 | while (*p && !isSPACE(*p)) | |
2325 | ++p; | |
2326 | while (isSPACE(*p)) | |
2327 | ++p; | |
2328 | if (!*p) | |
2329 | break; | |
2d4389e4 | 2330 | gary[i] = Atol(p); |
5cd24f17 | 2331 | } |
8cc95fdb | 2332 | if (i) |
2333 | (void)setgroups(i, gary); | |
5cd24f17 | 2334 | } |
2335 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2336 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2337 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2338 | if (PL_delaymagic) { |
2339 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2340 | break; /* don't do magic till later */ |
2341 | } | |
2342 | #ifdef HAS_SETEGID | |
3280af22 | 2343 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2344 | #else |
2345 | #ifdef HAS_SETREGID | |
b28d0864 | 2346 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2347 | #else |
2348 | #ifdef HAS_SETRESGID | |
b28d0864 | 2349 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2350 | #else |
b28d0864 NIS |
2351 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2352 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2353 | else { |
d8eceb89 | 2354 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2355 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2356 | } |
79072805 LW |
2357 | #endif |
2358 | #endif | |
85e6fe83 | 2359 | #endif |
d8eceb89 | 2360 | PL_egid = PerlProc_getegid(); |
3280af22 | 2361 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2362 | break; |
2363 | case ':': | |
2d8e6c8d | 2364 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2365 | break; |
cd39f2b6 | 2366 | #ifndef MACOS_TRADITIONAL |
79072805 | 2367 | case '0': |
e2975953 | 2368 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2369 | #ifdef HAS_SETPROCTITLE |
2370 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2371 | * show a string from the process struct and provide | |
2372 | * the setproctitle() routine to manipulate that. */ | |
2373 | { | |
2374 | s = SvPV(sv, len); | |
98b76f99 | 2375 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2376 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2377 | * but not the "(perl) suffix from the ps(1) |
2378 | * output, because that's what ps(1) shows if the | |
2379 | * argv[] is modified. */ | |
6f2ad931 | 2380 | setproctitle("-%s", s); |
9aad2c0e | 2381 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2382 | /* This doesn't really work if you assume that |
2383 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2384 | * because in ps(1) output the result will be like | |
2385 | * sprintf("perl: %s (perl)", s) | |
2386 | * I guess this is a security feature: | |
2387 | * one (a user process) cannot get rid of the original name. | |
2388 | * --jhi */ | |
2389 | setproctitle("%s", s); | |
2390 | # endif | |
2391 | } | |
2392 | #endif | |
17aa7f3d JH |
2393 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2394 | { | |
2395 | union pstun un; | |
2396 | s = SvPV(sv, len); | |
2397 | un.pst_command = s; | |
2398 | pstat(PSTAT_SETCMD, un, len, 0, 0); | |
2399 | } | |
2400 | #endif | |
3cb9023d | 2401 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2402 | s = SvPV_force(sv,len); |
8bafa735 | 2403 | if (len >= (STRLEN)PL_origalen) { |
54bfe034 JH |
2404 | /* Longer than original, will be truncated. */ |
2405 | Copy(s, PL_origargv[0], PL_origalen, char); | |
2406 | PL_origargv[0][PL_origalen - 1] = 0; | |
79072805 LW |
2407 | } |
2408 | else { | |
54bfe034 JH |
2409 | /* Shorter than original, will be padded. */ |
2410 | Copy(s, PL_origargv[0], len, char); | |
2411 | PL_origargv[0][len] = 0; | |
2412 | memset(PL_origargv[0] + len + 1, | |
2413 | /* Is the space counterintuitive? Yes. | |
2414 | * (You were expecting \0?) | |
3cb9023d | 2415 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 JH |
2416 | * --jhi */ |
2417 | (int)' ', | |
2418 | PL_origalen - len - 1); | |
3280af22 | 2419 | for (i = 1; i < PL_origargc; i++) |
54bfe034 | 2420 | PL_origargv[i] = 0; |
79072805 | 2421 | } |
e2975953 | 2422 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2423 | break; |
cd39f2b6 | 2424 | #endif |
79072805 LW |
2425 | } |
2426 | return 0; | |
2427 | } | |
2428 | ||
2429 | I32 | |
864dbfa3 | 2430 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2431 | { |
2432 | register char **sigv; | |
2433 | ||
e02bfb16 | 2434 | for (sigv = PL_sig_name; *sigv; sigv++) |
79072805 | 2435 | if (strEQ(sig,*sigv)) |
22c35a8c | 2436 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2437 | #ifdef SIGCLD |
2438 | if (strEQ(sig,"CHLD")) | |
2439 | return SIGCLD; | |
2440 | #endif | |
2441 | #ifdef SIGCHLD | |
2442 | if (strEQ(sig,"CLD")) | |
2443 | return SIGCHLD; | |
2444 | #endif | |
7f1236c0 | 2445 | return -1; |
79072805 LW |
2446 | } |
2447 | ||
df3728a2 | 2448 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2449 | static SV* sig_sv; |
df3728a2 | 2450 | #endif |
84902520 | 2451 | |
ecfc5424 | 2452 | Signal_t |
cea2e8a9 | 2453 | Perl_sighandler(int sig) |
79072805 | 2454 | { |
1018e26f NIS |
2455 | #ifdef PERL_GET_SIG_CONTEXT |
2456 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2457 | #else |
cea2e8a9 | 2458 | dTHX; |
71d280e3 | 2459 | #endif |
79072805 | 2460 | dSP; |
00d579c5 | 2461 | GV *gv = Nullgv; |
a0d0e21e | 2462 | HV *st; |
b7953727 | 2463 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2464 | CV *cv = Nullcv; |
533c011a | 2465 | OP *myop = PL_op; |
84902520 | 2466 | U32 flags = 0; |
3280af22 | 2467 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2468 | |
3280af22 | 2469 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2470 | flags |= 1; |
3280af22 | 2471 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2472 | flags |= 4; |
3280af22 | 2473 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2474 | flags |= 8; |
3280af22 | 2475 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2476 | flags |= 16; |
2477 | ||
727405f8 | 2478 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2479 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2480 | PL_sig_name[sig]); |
2481 | exit(sig); | |
2482 | } | |
ff0cee69 | 2483 | |
84902520 TB |
2484 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2485 | infinity, so we fix 4 (in fact 5): */ | |
2486 | if (flags & 1) { | |
3280af22 | 2487 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2488 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2489 | } |
ac27b0f5 | 2490 | if (flags & 4) |
3280af22 | 2491 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2492 | if (flags & 8) { |
3280af22 NIS |
2493 | PL_retstack_ix++; |
2494 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2495 | } |
2496 | if (flags & 16) | |
3280af22 | 2497 | PL_scopestack_ix += 1; |
84902520 | 2498 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2499 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2500 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2501 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2502 | |
a0d0e21e | 2503 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2504 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2505 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2506 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2507 | : ((cv && CvGV(cv)) |
2508 | ? GvENAME(CvGV(cv)) | |
2509 | : "__ANON__"))); | |
2510 | goto cleanup; | |
79072805 LW |
2511 | } |
2512 | ||
22c35a8c GS |
2513 | if(PL_psig_name[sig]) { |
2514 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2515 | flags |= 64; |
df3728a2 | 2516 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2517 | sig_sv = sv; |
df3728a2 | 2518 | #endif |
84902520 | 2519 | } else { |
ff0cee69 | 2520 | sv = sv_newmortal(); |
22c35a8c | 2521 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2522 | } |
e336de0d | 2523 | |
e788e7d3 | 2524 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2525 | PUSHMARK(SP); |
79072805 | 2526 | PUSHs(sv); |
79072805 | 2527 | PUTBACK; |
a0d0e21e | 2528 | |
1b266415 | 2529 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2530 | |
d3acc0f7 | 2531 | POPSTACK; |
1b266415 | 2532 | if (SvTRUE(ERRSV)) { |
1d615522 | 2533 | #ifndef PERL_MICRO |
983dbef6 | 2534 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2535 | /* Handler "died", for example to get out of a restart-able read(). |
2536 | * Before we re-do that on its behalf re-enable the signal which was | |
2537 | * blocked by the system when we entered. | |
2538 | */ | |
2539 | sigset_t set; | |
2540 | sigemptyset(&set); | |
2541 | sigaddset(&set,sig); | |
2542 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2543 | #else | |
2544 | /* Not clear if this will work */ | |
2545 | (void)rsignal(sig, SIG_IGN); | |
5c1546dc | 2546 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2547 | #endif |
1d615522 | 2548 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2549 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2550 | } |
00d579c5 | 2551 | cleanup: |
84902520 | 2552 | if (flags & 1) |
3280af22 | 2553 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2554 | if (flags & 4) |
3280af22 | 2555 | PL_markstack_ptr--; |
ac27b0f5 | 2556 | if (flags & 8) |
3280af22 | 2557 | PL_retstack_ix--; |
84902520 | 2558 | if (flags & 16) |
3280af22 | 2559 | PL_scopestack_ix -= 1; |
84902520 TB |
2560 | if (flags & 64) |
2561 | SvREFCNT_dec(sv); | |
533c011a | 2562 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2563 | |
3280af22 NIS |
2564 | PL_Sv = tSv; /* Restore global temporaries. */ |
2565 | PL_Xpv = tXpv; | |
53bb94e2 | 2566 | return; |
79072805 | 2567 | } |
4e35701f NIS |
2568 | |
2569 | ||
51371543 | 2570 | static void |
acfe0abc | 2571 | restore_magic(pTHX_ void *p) |
51371543 | 2572 | { |
48944bdf | 2573 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2574 | SV* sv = mgs->mgs_sv; |
2575 | ||
2576 | if (!sv) | |
2577 | return; | |
2578 | ||
2579 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2580 | { | |
2581 | if (mgs->mgs_flags) | |
2582 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2583 | else | |
2584 | mg_magical(sv); | |
2585 | if (SvGMAGICAL(sv)) | |
2586 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2587 | } | |
2588 | ||
2589 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2590 | ||
2591 | /* If we're still on top of the stack, pop us off. (That condition | |
2592 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2593 | * if it's being called via leave_scope.) | |
2594 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2595 | * may leave alloc gunk on the savestack, and some code | |
2596 | * (e.g. sighandler) doesn't expect that... | |
2597 | */ | |
2598 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2599 | { | |
2600 | I32 popval = SSPOPINT; | |
c76ac1ee | 2601 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2602 | PL_savestack_ix -= 2; |
2603 | popval = SSPOPINT; | |
2604 | assert(popval == SAVEt_ALLOC); | |
2605 | popval = SSPOPINT; | |
2606 | PL_savestack_ix -= popval; | |
2607 | } | |
2608 | ||
2609 | } | |
2610 | ||
2611 | static void | |
acfe0abc | 2612 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2613 | { |
51371543 GS |
2614 | U32 flags = *(U32*)p; |
2615 | ||
2616 | if (flags & 1) | |
2617 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2618 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2619 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2620 | if (flags & 64) |
2621 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2622 | #endif |
51371543 | 2623 | } |
1018e26f NIS |
2624 | |
2625 |