Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
3818b22b |
3 | * Copyright (c) 1991-2000, Larry Wall |
79072805 |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
a0d0e21e |
8 | */ |
9 | |
10 | /* |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." |
79072805 |
13 | */ |
14 | |
15 | #include "EXTERN.h" |
864dbfa3 |
16 | #define PERL_IN_MG_C |
79072805 |
17 | #include "perl.h" |
18 | |
e6d9441c |
19 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e |
20 | #ifdef I_UNISTD |
21 | # include <unistd.h> |
22 | #endif |
a0d0e21e |
23 | |
5cd24f17 |
24 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 |
25 | # ifndef NGROUPS |
26 | # define NGROUPS 32 |
27 | # endif |
28 | #endif |
29 | |
51371543 |
30 | static void restore_magic(pTHXo_ void *p); |
31 | static void unwind_handler_stack(pTHXo_ void *p); |
32 | |
c07a80fd |
33 | /* |
34 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
35 | */ |
36 | |
37 | struct magic_state { |
38 | SV* mgs_sv; |
39 | U32 mgs_flags; |
455ece5e |
40 | I32 mgs_ss_ix; |
c07a80fd |
41 | }; |
455ece5e |
42 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e |
43 | |
44 | STATIC void |
cea2e8a9 |
45 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd |
46 | { |
46124e9e |
47 | dTHR; |
455ece5e |
48 | MGS* mgs; |
c07a80fd |
49 | assert(SvMAGICAL(sv)); |
50 | |
c76ac1ee |
51 | SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix); |
455ece5e |
52 | |
53 | mgs = SSPTR(mgs_ix, MGS*); |
c07a80fd |
54 | mgs->mgs_sv = sv; |
55 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
455ece5e |
56 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd |
57 | |
58 | SvMAGICAL_off(sv); |
59 | SvREADONLY_off(sv); |
60 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
61 | } |
62 | |
954c1994 |
63 | /* |
64 | =for apidoc mg_magical |
65 | |
66 | Turns on the magical status of an SV. See C<sv_magic>. |
67 | |
68 | =cut |
69 | */ |
70 | |
8990e307 |
71 | void |
864dbfa3 |
72 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 |
73 | { |
74 | MAGIC* mg; |
75 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
76 | MGVTBL* vtbl = mg->mg_virtual; |
77 | if (vtbl) { |
2b260de0 |
78 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
79 | SvGMAGICAL_on(sv); |
80 | if (vtbl->svt_set) |
81 | SvSMAGICAL_on(sv); |
2b260de0 |
82 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 |
83 | SvRMAGICAL_on(sv); |
84 | } |
85 | } |
86 | } |
87 | |
954c1994 |
88 | /* |
89 | =for apidoc mg_get |
90 | |
91 | Do magic after a value is retrieved from the SV. See C<sv_magic>. |
92 | |
93 | =cut |
94 | */ |
95 | |
79072805 |
96 | int |
864dbfa3 |
97 | Perl_mg_get(pTHX_ SV *sv) |
79072805 |
98 | { |
46124e9e |
99 | dTHR; |
455ece5e |
100 | I32 mgs_ix; |
79072805 |
101 | MAGIC* mg; |
c6496cc7 |
102 | MAGIC** mgp; |
760ac839 |
103 | int mgp_valid = 0; |
463ee0b2 |
104 | |
455ece5e |
105 | mgs_ix = SSNEW(sizeof(MGS)); |
106 | save_magic(mgs_ix, sv); |
463ee0b2 |
107 | |
c6496cc7 |
108 | mgp = &SvMAGIC(sv); |
109 | while ((mg = *mgp) != 0) { |
79072805 |
110 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
111 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe |
112 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 |
113 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
114 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
115 | (mg->mg_flags & MGf_GSKIP)) |
455ece5e |
116 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
117 | } |
c6496cc7 |
118 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
119 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
120 | mgp = &mg->mg_moremagic; |
760ac839 |
121 | mgp_valid = 1; |
122 | } |
123 | else |
124 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
125 | } |
463ee0b2 |
126 | |
51371543 |
127 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 |
128 | return 0; |
129 | } |
130 | |
954c1994 |
131 | /* |
132 | =for apidoc mg_set |
133 | |
134 | Do magic after a value is assigned to the SV. See C<sv_magic>. |
135 | |
136 | =cut |
137 | */ |
138 | |
79072805 |
139 | int |
864dbfa3 |
140 | Perl_mg_set(pTHX_ SV *sv) |
79072805 |
141 | { |
46124e9e |
142 | dTHR; |
455ece5e |
143 | I32 mgs_ix; |
79072805 |
144 | MAGIC* mg; |
463ee0b2 |
145 | MAGIC* nextmg; |
146 | |
455ece5e |
147 | mgs_ix = SSNEW(sizeof(MGS)); |
148 | save_magic(mgs_ix, sv); |
463ee0b2 |
149 | |
150 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
151 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
152 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
153 | if (mg->mg_flags & MGf_GSKIP) { |
154 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
455ece5e |
155 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
156 | } |
2b260de0 |
157 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 |
158 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 |
159 | } |
463ee0b2 |
160 | |
51371543 |
161 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 |
162 | return 0; |
163 | } |
164 | |
954c1994 |
165 | /* |
166 | =for apidoc mg_length |
167 | |
168 | Report on the SV's length. See C<sv_magic>. |
169 | |
170 | =cut |
171 | */ |
172 | |
79072805 |
173 | U32 |
864dbfa3 |
174 | Perl_mg_length(pTHX_ SV *sv) |
79072805 |
175 | { |
176 | MAGIC* mg; |
748a9306 |
177 | char *junk; |
463ee0b2 |
178 | STRLEN len; |
463ee0b2 |
179 | |
79072805 |
180 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
181 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
182 | if (vtbl && vtbl->svt_len) { |
455ece5e |
183 | I32 mgs_ix; |
48e43a1c |
184 | |
455ece5e |
185 | mgs_ix = SSNEW(sizeof(MGS)); |
186 | save_magic(mgs_ix, sv); |
a0d0e21e |
187 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
188 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 |
189 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 |
190 | return len; |
191 | } |
192 | } |
193 | |
748a9306 |
194 | junk = SvPV(sv, len); |
463ee0b2 |
195 | return len; |
79072805 |
196 | } |
197 | |
93965878 |
198 | I32 |
864dbfa3 |
199 | Perl_mg_size(pTHX_ SV *sv) |
93965878 |
200 | { |
201 | MAGIC* mg; |
202 | I32 len; |
203 | |
204 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
205 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
206 | if (vtbl && vtbl->svt_len) { |
455ece5e |
207 | I32 mgs_ix; |
208 | |
209 | mgs_ix = SSNEW(sizeof(MGS)); |
210 | save_magic(mgs_ix, sv); |
93965878 |
211 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
212 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 |
213 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 |
214 | return len; |
215 | } |
216 | } |
217 | |
218 | switch(SvTYPE(sv)) { |
219 | case SVt_PVAV: |
220 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
221 | return len; |
222 | case SVt_PVHV: |
223 | /* FIXME */ |
224 | default: |
cea2e8a9 |
225 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 |
226 | break; |
227 | } |
228 | return 0; |
229 | } |
230 | |
954c1994 |
231 | /* |
232 | =for apidoc mg_clear |
233 | |
234 | Clear something magical that the SV represents. See C<sv_magic>. |
235 | |
236 | =cut |
237 | */ |
238 | |
79072805 |
239 | int |
864dbfa3 |
240 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 |
241 | { |
455ece5e |
242 | I32 mgs_ix; |
79072805 |
243 | MAGIC* mg; |
463ee0b2 |
244 | |
455ece5e |
245 | mgs_ix = SSNEW(sizeof(MGS)); |
246 | save_magic(mgs_ix, sv); |
463ee0b2 |
247 | |
79072805 |
248 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
249 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
250 | /* omit GSKIP -- never set here */ |
251 | |
2b260de0 |
252 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 |
253 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 |
254 | } |
463ee0b2 |
255 | |
51371543 |
256 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 |
257 | return 0; |
258 | } |
259 | |
954c1994 |
260 | /* |
261 | =for apidoc mg_find |
262 | |
263 | Finds the magic pointer for type matching the SV. See C<sv_magic>. |
264 | |
265 | =cut |
266 | */ |
267 | |
93a17b20 |
268 | MAGIC* |
864dbfa3 |
269 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 |
270 | { |
271 | MAGIC* mg; |
93a17b20 |
272 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
273 | if (mg->mg_type == type) |
274 | return mg; |
275 | } |
276 | return 0; |
277 | } |
278 | |
954c1994 |
279 | /* |
280 | =for apidoc mg_copy |
281 | |
282 | Copies the magic from one SV to another. See C<sv_magic>. |
283 | |
284 | =cut |
285 | */ |
286 | |
79072805 |
287 | int |
864dbfa3 |
288 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 |
289 | { |
463ee0b2 |
290 | int count = 0; |
79072805 |
291 | MAGIC* mg; |
463ee0b2 |
292 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
293 | if (isUPPER(mg->mg_type)) { |
33c27489 |
294 | sv_magic(nsv, |
fd345fa8 |
295 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : |
296 | (mg->mg_type == 'D' && mg->mg_obj) ? sv : mg->mg_obj, |
33c27489 |
297 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
298 | count++; |
79072805 |
299 | } |
79072805 |
300 | } |
463ee0b2 |
301 | return count; |
79072805 |
302 | } |
303 | |
954c1994 |
304 | /* |
305 | =for apidoc mg_free |
306 | |
307 | Free any magic storage used by the SV. See C<sv_magic>. |
308 | |
309 | =cut |
310 | */ |
311 | |
79072805 |
312 | int |
864dbfa3 |
313 | Perl_mg_free(pTHX_ SV *sv) |
79072805 |
314 | { |
315 | MAGIC* mg; |
316 | MAGIC* moremagic; |
317 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
318 | MGVTBL* vtbl = mg->mg_virtual; |
319 | moremagic = mg->mg_moremagic; |
2b260de0 |
320 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 |
321 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
93a17b20 |
322 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 |
323 | if (mg->mg_len >= 0) |
88e89b8a |
324 | Safefree(mg->mg_ptr); |
565764a8 |
325 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
326 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
327 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
328 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
329 | Safefree(mg); |
330 | } |
331 | SvMAGIC(sv) = 0; |
332 | return 0; |
333 | } |
334 | |
335 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
336 | #include <signal.h> |
337 | #endif |
338 | |
942e002e |
339 | U32 |
864dbfa3 |
340 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
341 | { |
342 | dTHR; |
6cef1e77 |
343 | register REGEXP *rx; |
6cef1e77 |
344 | |
8f580fb8 |
345 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
346 | if (mg->mg_obj) /* @+ */ |
347 | return rx->nparens; |
348 | else /* @- */ |
349 | return rx->lastparen; |
350 | } |
351 | |
942e002e |
352 | return (U32)-1; |
6cef1e77 |
353 | } |
354 | |
355 | int |
864dbfa3 |
356 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
357 | { |
358 | dTHR; |
359 | register I32 paren; |
cf93c79d |
360 | register I32 s; |
6cef1e77 |
361 | register I32 i; |
362 | register REGEXP *rx; |
cf93c79d |
363 | I32 t; |
6cef1e77 |
364 | |
365 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
366 | paren = mg->mg_len; |
367 | if (paren < 0) |
368 | return 0; |
369 | if (paren <= rx->nparens && |
cf93c79d |
370 | (s = rx->startp[paren]) != -1 && |
371 | (t = rx->endp[paren]) != -1) |
6cef1e77 |
372 | { |
373 | if (mg->mg_obj) /* @+ */ |
cf93c79d |
374 | i = t; |
6cef1e77 |
375 | else /* @- */ |
cf93c79d |
376 | i = s; |
6cef1e77 |
377 | sv_setiv(sv,i); |
378 | } |
379 | } |
380 | return 0; |
381 | } |
382 | |
e4b89193 |
383 | int |
a29d06ed |
384 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
385 | { |
386 | dTHR; |
387 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 |
388 | /* NOT REACHED */ |
389 | return 0; |
a29d06ed |
390 | } |
391 | |
93a17b20 |
392 | U32 |
864dbfa3 |
393 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
394 | { |
a863c7d1 |
395 | dTHR; |
93a17b20 |
396 | register I32 paren; |
93a17b20 |
397 | register I32 i; |
d9f97599 |
398 | register REGEXP *rx; |
a197cbdd |
399 | I32 s1, t1; |
93a17b20 |
400 | |
401 | switch (*mg->mg_ptr) { |
402 | case '1': case '2': case '3': case '4': |
403 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
404 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
405 | |
93a17b20 |
406 | paren = atoi(mg->mg_ptr); |
407 | getparen: |
d9f97599 |
408 | if (paren <= rx->nparens && |
cf93c79d |
409 | (s1 = rx->startp[paren]) != -1 && |
410 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
411 | { |
cf93c79d |
412 | i = t1 - s1; |
a197cbdd |
413 | getlen: |
414 | if (i > 0 && (PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { |
415 | char *s = rx->subbeg + s1; |
416 | char *send = rx->subbeg + t1; |
417 | i = 0; |
418 | while (s < send) { |
419 | s += UTF8SKIP(s); |
420 | i++; |
421 | } |
422 | } |
71be2cbc |
423 | if (i >= 0) |
93a17b20 |
424 | return i; |
93a17b20 |
425 | } |
93a17b20 |
426 | } |
748a9306 |
427 | return 0; |
93a17b20 |
428 | case '+': |
3280af22 |
429 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
430 | paren = rx->lastparen; |
13f57bf8 |
431 | if (paren) |
432 | goto getparen; |
93a17b20 |
433 | } |
748a9306 |
434 | return 0; |
93a17b20 |
435 | case '`': |
3280af22 |
436 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
437 | if (rx->startp[0] != -1) { |
438 | i = rx->startp[0]; |
a197cbdd |
439 | if (i > 0) { |
440 | s1 = 0; |
441 | t1 = i; |
442 | goto getlen; |
443 | } |
93a17b20 |
444 | } |
93a17b20 |
445 | } |
748a9306 |
446 | return 0; |
93a17b20 |
447 | case '\'': |
3280af22 |
448 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
449 | if (rx->endp[0] != -1) { |
450 | i = rx->sublen - rx->endp[0]; |
a197cbdd |
451 | if (i > 0) { |
452 | s1 = rx->endp[0]; |
453 | t1 = rx->sublen; |
454 | goto getlen; |
455 | } |
93a17b20 |
456 | } |
93a17b20 |
457 | } |
748a9306 |
458 | return 0; |
93a17b20 |
459 | case ',': |
3280af22 |
460 | return (STRLEN)PL_ofslen; |
93a17b20 |
461 | case '\\': |
3280af22 |
462 | return (STRLEN)PL_orslen; |
93a17b20 |
463 | } |
464 | magic_get(sv,mg); |
2d8e6c8d |
465 | if (!SvPOK(sv) && SvNIOK(sv)) { |
466 | STRLEN n_a; |
467 | sv_2pv(sv, &n_a); |
468 | } |
93a17b20 |
469 | if (SvPOK(sv)) |
470 | return SvCUR(sv); |
471 | return 0; |
472 | } |
473 | |
79072805 |
474 | int |
864dbfa3 |
475 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
476 | { |
a863c7d1 |
477 | dTHR; |
79072805 |
478 | register I32 paren; |
479 | register char *s; |
480 | register I32 i; |
d9f97599 |
481 | register REGEXP *rx; |
79072805 |
482 | |
483 | switch (*mg->mg_ptr) { |
748a9306 |
484 | case '\001': /* ^A */ |
3280af22 |
485 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
486 | break; |
49460fe6 |
487 | case '\003': /* ^C */ |
488 | sv_setiv(sv, (IV)PL_minus_c); |
489 | break; |
490 | |
79072805 |
491 | case '\004': /* ^D */ |
3280af22 |
492 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
d056ab3f |
493 | #if defined(YYDEBUG) && defined(DEBUGGING) |
494 | PL_yydebug = (PL_debug & 1); |
495 | #endif |
79072805 |
496 | break; |
28f23441 |
497 | case '\005': /* ^E */ |
cd39f2b6 |
498 | #ifdef MACOS_TRADITIONAL |
499 | { |
500 | char msg[256]; |
501 | |
bf4acbe4 |
502 | sv_setnv(sv,(double)gMacPerl_OSErr); |
503 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
cd39f2b6 |
504 | } |
505 | #else |
28f23441 |
506 | #ifdef VMS |
507 | { |
508 | # include <descrip.h> |
509 | # include <starlet.h> |
510 | char msg[255]; |
511 | $DESCRIPTOR(msgdsc,msg); |
65202027 |
512 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 |
513 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
514 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
515 | else |
516 | sv_setpv(sv,""); |
517 | } |
518 | #else |
88e89b8a |
519 | #ifdef OS2 |
fb73857a |
520 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 |
521 | sv_setnv(sv, (NV)errno); |
fb73857a |
522 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
523 | } else { |
017f25f1 |
524 | if (errno != errno_isOS2) { |
525 | int tmp = _syserrno(); |
526 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
527 | Perl_rc = tmp; |
528 | } |
65202027 |
529 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a |
530 | sv_setpv(sv, os2error(Perl_rc)); |
531 | } |
88e89b8a |
532 | #else |
22fae026 |
533 | #ifdef WIN32 |
534 | { |
535 | DWORD dwErr = GetLastError(); |
65202027 |
536 | sv_setnv(sv, (NV)dwErr); |
22fae026 |
537 | if (dwErr) |
76e3520e |
538 | { |
0cb96387 |
539 | PerlProc_GetOSError(sv, dwErr); |
76e3520e |
540 | } |
22fae026 |
541 | else |
542 | sv_setpv(sv, ""); |
543 | SetLastError(dwErr); |
544 | } |
545 | #else |
65202027 |
546 | sv_setnv(sv, (NV)errno); |
28f23441 |
547 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
548 | #endif |
88e89b8a |
549 | #endif |
22fae026 |
550 | #endif |
cd39f2b6 |
551 | #endif |
946ec16e |
552 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
553 | break; |
79072805 |
554 | case '\006': /* ^F */ |
3280af22 |
555 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
556 | break; |
a0d0e21e |
557 | case '\010': /* ^H */ |
3280af22 |
558 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
559 | break; |
9d116dd7 |
560 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
561 | if (PL_inplace) |
562 | sv_setpv(sv, PL_inplace); |
79072805 |
563 | else |
3280af22 |
564 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
565 | break; |
28f23441 |
566 | case '\017': /* ^O */ |
3280af22 |
567 | sv_setpv(sv, PL_osname); |
28f23441 |
568 | break; |
79072805 |
569 | case '\020': /* ^P */ |
3280af22 |
570 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
571 | break; |
fb73857a |
572 | case '\023': /* ^S */ |
d58bf5aa |
573 | { |
574 | dTHR; |
3280af22 |
575 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 |
576 | (void)SvOK_off(sv); |
3280af22 |
577 | else if (PL_in_eval) |
d58bf5aa |
578 | sv_setiv(sv, 1); |
579 | else |
580 | sv_setiv(sv, 0); |
581 | } |
fb73857a |
582 | break; |
79072805 |
583 | case '\024': /* ^T */ |
88e89b8a |
584 | #ifdef BIG_TIME |
6b88bc9c |
585 | sv_setnv(sv, PL_basetime); |
88e89b8a |
586 | #else |
3280af22 |
587 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
588 | #endif |
79072805 |
589 | break; |
46487f74 |
590 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 |
591 | if (*(mg->mg_ptr+1) == '\0') |
592 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
6a818117 |
593 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 |
594 | if (PL_compiling.cop_warnings == pWARN_NONE || |
595 | PL_compiling.cop_warnings == pWARN_STD) |
4438c4b7 |
596 | { |
597 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
598 | } |
d3a7d8c7 |
599 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 |
600 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
601 | } |
602 | else { |
603 | sv_setsv(sv, PL_compiling.cop_warnings); |
604 | } |
d3a7d8c7 |
605 | SvPOK_only(sv); |
4438c4b7 |
606 | } |
46487f74 |
607 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
608 | sv_setiv(sv, (IV)PL_widesyscalls); |
79072805 |
609 | break; |
610 | case '1': case '2': case '3': case '4': |
611 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
612 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
613 | I32 s1, t1; |
614 | |
a863c7d1 |
615 | /* |
616 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
617 | * XXX Does the new way break anything? |
618 | */ |
619 | paren = atoi(mg->mg_ptr); |
79072805 |
620 | getparen: |
d9f97599 |
621 | if (paren <= rx->nparens && |
cf93c79d |
622 | (s1 = rx->startp[paren]) != -1 && |
623 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
624 | { |
cf93c79d |
625 | i = t1 - s1; |
626 | s = rx->subbeg + s1; |
01ec43d0 |
627 | if (!rx->subbeg) |
c2e66d9e |
628 | break; |
629 | |
13f57bf8 |
630 | getrx: |
748a9306 |
631 | if (i >= 0) { |
13f57bf8 |
632 | bool was_tainted; |
3280af22 |
633 | if (PL_tainting) { |
634 | was_tainted = PL_tainted; |
635 | PL_tainted = FALSE; |
13f57bf8 |
636 | } |
cf93c79d |
637 | sv_setpvn(sv, s, i); |
7e2040f0 |
638 | if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) |
639 | SvUTF8_on(sv); |
640 | else |
641 | SvUTF8_off(sv); |
3280af22 |
642 | if (PL_tainting) |
643 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); |
748a9306 |
644 | break; |
645 | } |
79072805 |
646 | } |
79072805 |
647 | } |
3280af22 |
648 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
649 | break; |
650 | case '+': |
3280af22 |
651 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
652 | paren = rx->lastparen; |
a0d0e21e |
653 | if (paren) |
654 | goto getparen; |
79072805 |
655 | } |
3280af22 |
656 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
657 | break; |
658 | case '`': |
3280af22 |
659 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
660 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
661 | i = rx->startp[0]; |
13f57bf8 |
662 | goto getrx; |
79072805 |
663 | } |
79072805 |
664 | } |
3280af22 |
665 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
666 | break; |
667 | case '\'': |
3280af22 |
668 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
669 | if (rx->subbeg && rx->endp[0] != -1) { |
670 | s = rx->subbeg + rx->endp[0]; |
671 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
672 | goto getrx; |
79072805 |
673 | } |
79072805 |
674 | } |
3280af22 |
675 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
676 | break; |
677 | case '.': |
678 | #ifndef lint |
3280af22 |
679 | if (GvIO(PL_last_in_gv)) { |
680 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); |
79072805 |
681 | } |
682 | #endif |
683 | break; |
684 | case '?': |
809a5acc |
685 | { |
809a5acc |
686 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
687 | #ifdef COMPLEX_STATUS |
6b88bc9c |
688 | LvTARGOFF(sv) = PL_statusvalue; |
689 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
690 | #endif |
809a5acc |
691 | } |
79072805 |
692 | break; |
693 | case '^': |
3280af22 |
694 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
695 | if (s) |
696 | sv_setpv(sv,s); |
697 | else { |
3280af22 |
698 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
699 | sv_catpv(sv,"_TOP"); |
700 | } |
701 | break; |
702 | case '~': |
3280af22 |
703 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
704 | if (!s) |
3280af22 |
705 | s = GvENAME(PL_defoutgv); |
79072805 |
706 | sv_setpv(sv,s); |
707 | break; |
708 | #ifndef lint |
709 | case '=': |
3280af22 |
710 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
711 | break; |
712 | case '-': |
3280af22 |
713 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
714 | break; |
715 | case '%': |
3280af22 |
716 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
717 | break; |
718 | #endif |
719 | case ':': |
720 | break; |
721 | case '/': |
722 | break; |
723 | case '[': |
3280af22 |
724 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
725 | break; |
726 | case '|': |
3280af22 |
727 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
728 | break; |
729 | case ',': |
3280af22 |
730 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 |
731 | break; |
732 | case '\\': |
3280af22 |
733 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 |
734 | break; |
735 | case '#': |
3280af22 |
736 | sv_setpv(sv,PL_ofmt); |
79072805 |
737 | break; |
738 | case '!': |
a5f75d66 |
739 | #ifdef VMS |
65202027 |
740 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
741 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
742 | #else |
88e89b8a |
743 | { |
744 | int saveerrno = errno; |
65202027 |
745 | sv_setnv(sv, (NV)errno); |
88e89b8a |
746 | #ifdef OS2 |
ed344e4f |
747 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
748 | sv_setpv(sv, os2error(Perl_rc)); |
88e89b8a |
749 | else |
a5f75d66 |
750 | #endif |
2304df62 |
751 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
752 | errno = saveerrno; |
753 | } |
754 | #endif |
946ec16e |
755 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
756 | break; |
757 | case '<': |
3280af22 |
758 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
759 | break; |
760 | case '>': |
3280af22 |
761 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
762 | break; |
763 | case '(': |
3280af22 |
764 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 |
765 | #ifdef HAS_GETGROUPS |
785fb66b |
766 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 |
767 | #endif |
79072805 |
768 | goto add_groups; |
769 | case ')': |
3280af22 |
770 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 |
771 | #ifdef HAS_GETGROUPS |
785fb66b |
772 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 |
773 | #endif |
79072805 |
774 | add_groups: |
79072805 |
775 | #ifdef HAS_GETGROUPS |
79072805 |
776 | { |
a0d0e21e |
777 | Groups_t gary[NGROUPS]; |
79072805 |
778 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
779 | while (--i >= 0) |
785fb66b |
780 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 |
781 | } |
782 | #endif |
155aba94 |
783 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
784 | break; |
785 | case '*': |
786 | break; |
cd39f2b6 |
787 | #ifndef MACOS_TRADITIONAL |
79072805 |
788 | case '0': |
789 | break; |
cd39f2b6 |
790 | #endif |
a863c7d1 |
791 | #ifdef USE_THREADS |
792 | case '@': |
38a03e6e |
793 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
794 | break; |
795 | #endif /* USE_THREADS */ |
79072805 |
796 | } |
a0d0e21e |
797 | return 0; |
79072805 |
798 | } |
799 | |
800 | int |
864dbfa3 |
801 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
802 | { |
803 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
804 | |
805 | if (uf && uf->uf_val) |
806 | (*uf->uf_val)(uf->uf_index, sv); |
807 | return 0; |
808 | } |
809 | |
810 | int |
864dbfa3 |
811 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
812 | { |
813 | register char *s; |
88e89b8a |
814 | char *ptr; |
5aabfad6 |
815 | STRLEN len, klen; |
a0d0e21e |
816 | I32 i; |
1e422769 |
817 | |
a0d0e21e |
818 | s = SvPV(sv,len); |
5aabfad6 |
819 | ptr = MgPV(mg,klen); |
88e89b8a |
820 | my_setenv(ptr, s); |
1e422769 |
821 | |
a0d0e21e |
822 | #ifdef DYNAMIC_ENV_FETCH |
823 | /* We just undefd an environment var. Is a replacement */ |
824 | /* waiting in the wings? */ |
825 | if (!len) { |
5aabfad6 |
826 | SV **valp; |
6b88bc9c |
827 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 |
828 | s = SvPV(*valp, len); |
a0d0e21e |
829 | } |
830 | #endif |
1e422769 |
831 | |
39e571d4 |
832 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
833 | /* And you'll never guess what the dog had */ |
834 | /* in its mouth... */ |
3280af22 |
835 | if (PL_tainting) { |
1e422769 |
836 | MgTAINTEDDIR_off(mg); |
837 | #ifdef VMS |
5aabfad6 |
838 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
839 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
840 | struct stat sbuf; |
841 | int i = 0, j = 0; |
842 | |
843 | do { /* DCL$PATH may be a search list */ |
844 | while (1) { /* as may dev portion of any element */ |
845 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
846 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
847 | cando_by_name(S_IWUSR,0,elt) ) { |
848 | MgTAINTEDDIR_on(mg); |
849 | return 0; |
850 | } |
851 | } |
852 | if ((cp = strchr(elt, ':')) != Nullch) |
853 | *cp = '\0'; |
854 | if (my_trnlnm(elt, eltbuf, j++)) |
855 | elt = eltbuf; |
856 | else |
857 | break; |
858 | } |
859 | j = 0; |
860 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
861 | } |
862 | #endif /* VMS */ |
5aabfad6 |
863 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
864 | char *strend = s + len; |
463ee0b2 |
865 | |
866 | while (s < strend) { |
96827780 |
867 | char tmpbuf[256]; |
1e422769 |
868 | struct stat st; |
96827780 |
869 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
870 | s, strend, ':', &i); |
463ee0b2 |
871 | s++; |
96827780 |
872 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
873 | || *tmpbuf != '/' |
c6ed36e1 |
874 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
875 | MgTAINTEDDIR_on(mg); |
1e422769 |
876 | return 0; |
877 | } |
463ee0b2 |
878 | } |
79072805 |
879 | } |
880 | } |
39e571d4 |
881 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
882 | |
79072805 |
883 | return 0; |
884 | } |
885 | |
886 | int |
864dbfa3 |
887 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 |
888 | { |
2d8e6c8d |
889 | STRLEN n_a; |
890 | my_setenv(MgPV(mg,n_a),Nullch); |
85e6fe83 |
891 | return 0; |
892 | } |
893 | |
88e89b8a |
894 | int |
864dbfa3 |
895 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a |
896 | { |
897 | #if defined(VMS) |
cea2e8a9 |
898 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a |
899 | #else |
d58bf5aa |
900 | dTHR; |
3280af22 |
901 | if (PL_localizing) { |
fb73857a |
902 | HE* entry; |
2d8e6c8d |
903 | STRLEN n_a; |
fb73857a |
904 | magic_clear_all_env(sv,mg); |
905 | hv_iterinit((HV*)sv); |
155aba94 |
906 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a |
907 | I32 keylen; |
908 | my_setenv(hv_iterkey(entry, &keylen), |
2d8e6c8d |
909 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a |
910 | } |
911 | } |
912 | #endif |
913 | return 0; |
914 | } |
915 | |
916 | int |
864dbfa3 |
917 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 |
918 | { |
3e3baf6d |
919 | #if defined(VMS) |
cea2e8a9 |
920 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d |
921 | #else |
7766f137 |
922 | # ifdef PERL_IMPLICIT_SYS |
923 | PerlEnv_clearenv(); |
924 | # else |
925 | # ifdef WIN32 |
3e3baf6d |
926 | char *envv = GetEnvironmentStrings(); |
927 | char *cur = envv; |
928 | STRLEN len; |
929 | while (*cur) { |
930 | char *end = strchr(cur,'='); |
931 | if (end && end != cur) { |
932 | *end = '\0'; |
933 | my_setenv(cur,Nullch); |
934 | *end = '='; |
ac5c734f |
935 | cur = end + strlen(end+1)+2; |
3e3baf6d |
936 | } |
937 | else if ((len = strlen(cur))) |
938 | cur += len+1; |
939 | } |
940 | FreeEnvironmentStrings(envv); |
7766f137 |
941 | # else |
d308986b |
942 | # ifdef __CYGWIN__ |
2c2d71f5 |
943 | I32 i; |
944 | for (i = 0; environ[i]; i++) |
d702ae42 |
945 | safesysfree(environ[i]); |
7766f137 |
946 | # else |
947 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 |
948 | I32 i; |
949 | |
3280af22 |
950 | if (environ == PL_origenviron) |
f2517201 |
951 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 |
952 | else |
953 | for (i = 0; environ[i]; i++) |
f2517201 |
954 | safesysfree(environ[i]); |
7766f137 |
955 | # endif /* PERL_USE_SAFE_PUTENV */ |
d308986b |
956 | # endif /* __CYGWIN__ */ |
f2517201 |
957 | |
66b1d557 |
958 | environ[0] = Nullch; |
959 | |
7766f137 |
960 | # endif /* WIN32 */ |
961 | # endif /* PERL_IMPLICIT_SYS */ |
f2517201 |
962 | #endif /* VMS */ |
3e3baf6d |
963 | return 0; |
66b1d557 |
964 | } |
965 | |
64ca3a65 |
966 | #ifndef PERL_MICRO |
66b1d557 |
967 | int |
864dbfa3 |
968 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
969 | { |
970 | I32 i; |
2d8e6c8d |
971 | STRLEN n_a; |
88e89b8a |
972 | /* Are we fetching a signal entry? */ |
2d8e6c8d |
973 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
974 | if (i) { |
22c35a8c |
975 | if(PL_psig_ptr[i]) |
976 | sv_setsv(sv,PL_psig_ptr[i]); |
88e89b8a |
977 | else { |
ff68c719 |
978 | Sighandler_t sigstate = rsignal_state(i); |
979 | |
88e89b8a |
980 | /* cache state so we don't fetch it again */ |
ff68c719 |
981 | if(sigstate == SIG_IGN) |
88e89b8a |
982 | sv_setpv(sv,"IGNORE"); |
983 | else |
3280af22 |
984 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c |
985 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
986 | SvTEMP_off(sv); |
987 | } |
988 | } |
989 | return 0; |
990 | } |
991 | int |
864dbfa3 |
992 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
993 | { |
994 | I32 i; |
2d8e6c8d |
995 | STRLEN n_a; |
88e89b8a |
996 | /* Are we clearing a signal entry? */ |
2d8e6c8d |
997 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
998 | if (i) { |
22c35a8c |
999 | if(PL_psig_ptr[i]) { |
1000 | SvREFCNT_dec(PL_psig_ptr[i]); |
1001 | PL_psig_ptr[i]=0; |
88e89b8a |
1002 | } |
22c35a8c |
1003 | if(PL_psig_name[i]) { |
1004 | SvREFCNT_dec(PL_psig_name[i]); |
1005 | PL_psig_name[i]=0; |
88e89b8a |
1006 | } |
1007 | } |
1008 | return 0; |
1009 | } |
3d37d572 |
1010 | |
85e6fe83 |
1011 | int |
864dbfa3 |
1012 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1013 | { |
11343788 |
1014 | dTHR; |
79072805 |
1015 | register char *s; |
1016 | I32 i; |
748a9306 |
1017 | SV** svp; |
e72dc28c |
1018 | STRLEN len; |
a0d0e21e |
1019 | |
e72dc28c |
1020 | s = MgPV(mg,len); |
748a9306 |
1021 | if (*s == '_') { |
1022 | if (strEQ(s,"__DIE__")) |
3280af22 |
1023 | svp = &PL_diehook; |
748a9306 |
1024 | else if (strEQ(s,"__WARN__")) |
3280af22 |
1025 | svp = &PL_warnhook; |
748a9306 |
1026 | else |
cea2e8a9 |
1027 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 |
1028 | i = 0; |
4633a7c4 |
1029 | if (*svp) { |
1030 | SvREFCNT_dec(*svp); |
1031 | *svp = 0; |
1032 | } |
748a9306 |
1033 | } |
1034 | else { |
1035 | i = whichsig(s); /* ...no, a brick */ |
1036 | if (!i) { |
e476b1b5 |
1037 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 |
1038 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 |
1039 | return 0; |
1040 | } |
22c35a8c |
1041 | SvREFCNT_dec(PL_psig_name[i]); |
1042 | SvREFCNT_dec(PL_psig_ptr[i]); |
1043 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1044 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c |
1045 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c |
1046 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 |
1047 | } |
a0d0e21e |
1048 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
1049 | if (i) |
3280af22 |
1050 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
1051 | else |
1052 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
1053 | return 0; |
1054 | } |
e72dc28c |
1055 | s = SvPV_force(sv,len); |
748a9306 |
1056 | if (strEQ(s,"IGNORE")) { |
1057 | if (i) |
ff68c719 |
1058 | (void)rsignal(i, SIG_IGN); |
748a9306 |
1059 | else |
1060 | *svp = 0; |
1061 | } |
1062 | else if (strEQ(s,"DEFAULT") || !*s) { |
1063 | if (i) |
ff68c719 |
1064 | (void)rsignal(i, SIG_DFL); |
748a9306 |
1065 | else |
1066 | *svp = 0; |
1067 | } |
79072805 |
1068 | else { |
5aabfad6 |
1069 | /* |
1070 | * We should warn if HINT_STRICT_REFS, but without |
1071 | * access to a known hint bit in a known OP, we can't |
1072 | * tell whether HINT_STRICT_REFS is in force or not. |
1073 | */ |
46fc3d4c |
1074 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c |
1075 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 |
1076 | if (i) |
3280af22 |
1077 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
1078 | else |
1079 | *svp = SvREFCNT_inc(sv); |
79072805 |
1080 | } |
1081 | return 0; |
1082 | } |
64ca3a65 |
1083 | #endif /* !PERL_MICRO */ |
79072805 |
1084 | |
1085 | int |
864dbfa3 |
1086 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1087 | { |
3280af22 |
1088 | PL_sub_generation++; |
463ee0b2 |
1089 | return 0; |
1090 | } |
1091 | |
1092 | int |
864dbfa3 |
1093 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1094 | { |
a0d0e21e |
1095 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
1096 | PL_amagic_generation++; |
463ee0b2 |
1097 | |
a0d0e21e |
1098 | return 0; |
1099 | } |
463ee0b2 |
1100 | |
946ec16e |
1101 | int |
864dbfa3 |
1102 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1103 | { |
1104 | HV *hv = (HV*)LvTARG(sv); |
1105 | HE *entry; |
1106 | I32 i = 0; |
1107 | |
1108 | if (hv) { |
1109 | (void) hv_iterinit(hv); |
33c27489 |
1110 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 |
1111 | i = HvKEYS(hv); |
1112 | else { |
1113 | /*SUPPRESS 560*/ |
155aba94 |
1114 | while ((entry = hv_iternext(hv))) { |
6ff81951 |
1115 | i++; |
1116 | } |
1117 | } |
1118 | } |
1119 | |
1120 | sv_setiv(sv, (IV)i); |
1121 | return 0; |
1122 | } |
1123 | |
1124 | int |
864dbfa3 |
1125 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e |
1126 | { |
1127 | if (LvTARG(sv)) { |
1128 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1129 | } |
1130 | return 0; |
93965878 |
1131 | } |
946ec16e |
1132 | |
e336de0d |
1133 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1134 | STATIC int |
cea2e8a9 |
1135 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1136 | { |
1137 | dSP; |
463ee0b2 |
1138 | |
924508f0 |
1139 | PUSHMARK(SP); |
1140 | EXTEND(SP, n); |
33c27489 |
1141 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 |
1142 | if (n > 1) { |
1143 | if (mg->mg_ptr) { |
565764a8 |
1144 | if (mg->mg_len >= 0) |
79cb57f6 |
1145 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 |
1146 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1147 | PUSHs((SV*)mg->mg_ptr); |
1148 | } |
1149 | else if (mg->mg_type == 'p') { |
565764a8 |
1150 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1151 | } |
1152 | } |
1153 | if (n > 2) { |
1154 | PUSHs(val); |
88e89b8a |
1155 | } |
463ee0b2 |
1156 | PUTBACK; |
1157 | |
864dbfa3 |
1158 | return call_method(meth, flags); |
946ec16e |
1159 | } |
1160 | |
76e3520e |
1161 | STATIC int |
cea2e8a9 |
1162 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1163 | { |
1164 | dSP; |
463ee0b2 |
1165 | |
a0d0e21e |
1166 | ENTER; |
1167 | SAVETMPS; |
e788e7d3 |
1168 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1169 | |
33c27489 |
1170 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1171 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1172 | } |
463ee0b2 |
1173 | |
d3acc0f7 |
1174 | POPSTACK; |
a0d0e21e |
1175 | FREETMPS; |
1176 | LEAVE; |
1177 | return 0; |
1178 | } |
463ee0b2 |
1179 | |
a0d0e21e |
1180 | int |
864dbfa3 |
1181 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1182 | { |
1183 | magic_methpack(sv,mg,"FETCH"); |
1184 | if (mg->mg_ptr) |
1185 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1186 | return 0; |
1187 | } |
1188 | |
1189 | int |
864dbfa3 |
1190 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d |
1191 | { |
1192 | dSP; |
a60c0954 |
1193 | ENTER; |
e788e7d3 |
1194 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1195 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1196 | POPSTACK; |
a60c0954 |
1197 | LEAVE; |
463ee0b2 |
1198 | return 0; |
1199 | } |
1200 | |
1201 | int |
864dbfa3 |
1202 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1203 | { |
a0d0e21e |
1204 | return magic_methpack(sv,mg,"DELETE"); |
1205 | } |
463ee0b2 |
1206 | |
93965878 |
1207 | |
1208 | U32 |
864dbfa3 |
1209 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 |
1210 | { |
e336de0d |
1211 | dSP; |
93965878 |
1212 | U32 retval = 0; |
1213 | |
1214 | ENTER; |
1215 | SAVETMPS; |
e788e7d3 |
1216 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1217 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1218 | sv = *PL_stack_sp--; |
a60c0954 |
1219 | retval = (U32) SvIV(sv)-1; |
93965878 |
1220 | } |
d3acc0f7 |
1221 | POPSTACK; |
93965878 |
1222 | FREETMPS; |
1223 | LEAVE; |
1224 | return retval; |
1225 | } |
1226 | |
cea2e8a9 |
1227 | int |
1228 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1229 | { |
1230 | dSP; |
463ee0b2 |
1231 | |
e336de0d |
1232 | ENTER; |
e788e7d3 |
1233 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1234 | PUSHMARK(SP); |
33c27489 |
1235 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1236 | PUTBACK; |
864dbfa3 |
1237 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1238 | POPSTACK; |
a60c0954 |
1239 | LEAVE; |
463ee0b2 |
1240 | return 0; |
1241 | } |
1242 | |
1243 | int |
864dbfa3 |
1244 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1245 | { |
463ee0b2 |
1246 | dSP; |
dff6d3cd |
1247 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1248 | |
1249 | ENTER; |
a0d0e21e |
1250 | SAVETMPS; |
e788e7d3 |
1251 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1252 | PUSHMARK(SP); |
1253 | EXTEND(SP, 2); |
33c27489 |
1254 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1255 | if (SvOK(key)) |
1256 | PUSHs(key); |
1257 | PUTBACK; |
1258 | |
864dbfa3 |
1259 | if (call_method(meth, G_SCALAR)) |
3280af22 |
1260 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1261 | |
d3acc0f7 |
1262 | POPSTACK; |
a0d0e21e |
1263 | FREETMPS; |
1264 | LEAVE; |
79072805 |
1265 | return 0; |
1266 | } |
1267 | |
1268 | int |
864dbfa3 |
1269 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1270 | { |
1271 | return magic_methpack(sv,mg,"EXISTS"); |
1272 | } |
1273 | |
1274 | int |
864dbfa3 |
1275 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1276 | { |
11343788 |
1277 | dTHR; |
79072805 |
1278 | OP *o; |
1279 | I32 i; |
1280 | GV* gv; |
1281 | SV** svp; |
2d8e6c8d |
1282 | STRLEN n_a; |
79072805 |
1283 | |
3280af22 |
1284 | gv = PL_DBline; |
79072805 |
1285 | i = SvTRUE(sv); |
188ea221 |
1286 | svp = av_fetch(GvAV(gv), |
2d8e6c8d |
1287 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 |
1288 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 |
1289 | o->op_private = i; |
79072805 |
1290 | return 0; |
1291 | } |
1292 | |
1293 | int |
864dbfa3 |
1294 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1295 | { |
0f15f207 |
1296 | dTHR; |
3280af22 |
1297 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 |
1298 | return 0; |
1299 | } |
1300 | |
1301 | int |
864dbfa3 |
1302 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1303 | { |
0f15f207 |
1304 | dTHR; |
3280af22 |
1305 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e |
1306 | return 0; |
1307 | } |
1308 | |
1309 | int |
864dbfa3 |
1310 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1311 | { |
1312 | SV* lsv = LvTARG(sv); |
1313 | |
1314 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1315 | mg = mg_find(lsv, 'g'); |
565764a8 |
1316 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1317 | dTHR; |
a0ed51b3 |
1318 | I32 i = mg->mg_len; |
7e2040f0 |
1319 | if (DO_UTF8(lsv)) |
a0ed51b3 |
1320 | sv_pos_b2u(lsv, &i); |
1321 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1322 | return 0; |
1323 | } |
1324 | } |
1325 | (void)SvOK_off(sv); |
1326 | return 0; |
1327 | } |
1328 | |
1329 | int |
864dbfa3 |
1330 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1331 | { |
1332 | SV* lsv = LvTARG(sv); |
1333 | SSize_t pos; |
1334 | STRLEN len; |
c00206c8 |
1335 | STRLEN ulen = 0; |
c485e607 |
1336 | dTHR; |
a0d0e21e |
1337 | |
1338 | mg = 0; |
1339 | |
1340 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1341 | mg = mg_find(lsv, 'g'); |
1342 | if (!mg) { |
1343 | if (!SvOK(sv)) |
1344 | return 0; |
1345 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1346 | mg = mg_find(lsv, 'g'); |
1347 | } |
1348 | else if (!SvOK(sv)) { |
565764a8 |
1349 | mg->mg_len = -1; |
a0d0e21e |
1350 | return 0; |
1351 | } |
1352 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1353 | |
c485e607 |
1354 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1355 | |
7e2040f0 |
1356 | if (DO_UTF8(lsv)) { |
a0ed51b3 |
1357 | ulen = sv_len_utf8(lsv); |
1358 | if (ulen) |
1359 | len = ulen; |
a0ed51b3 |
1360 | } |
1361 | |
a0d0e21e |
1362 | if (pos < 0) { |
1363 | pos += len; |
1364 | if (pos < 0) |
1365 | pos = 0; |
1366 | } |
1367 | else if (pos > len) |
1368 | pos = len; |
a0ed51b3 |
1369 | |
1370 | if (ulen) { |
1371 | I32 p = pos; |
1372 | sv_pos_u2b(lsv, &p, 0); |
1373 | pos = p; |
1374 | } |
1375 | |
565764a8 |
1376 | mg->mg_len = pos; |
71be2cbc |
1377 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1378 | |
79072805 |
1379 | return 0; |
1380 | } |
1381 | |
1382 | int |
864dbfa3 |
1383 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1384 | { |
8646b087 |
1385 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1386 | SvFAKE_off(sv); |
946ec16e |
1387 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1388 | SvFAKE_on(sv); |
1389 | } |
1390 | else |
946ec16e |
1391 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1392 | return 0; |
1393 | } |
1394 | |
1395 | int |
864dbfa3 |
1396 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1397 | { |
1398 | register char *s; |
1399 | GV* gv; |
2d8e6c8d |
1400 | STRLEN n_a; |
79072805 |
1401 | |
1402 | if (!SvOK(sv)) |
1403 | return 0; |
2d8e6c8d |
1404 | s = SvPV(sv, n_a); |
79072805 |
1405 | if (*s == '*' && s[1]) |
1406 | s++; |
85e6fe83 |
1407 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1408 | if (sv == (SV*)gv) |
1409 | return 0; |
1410 | if (GvGP(sv)) |
88e89b8a |
1411 | gp_free((GV*)sv); |
79072805 |
1412 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1413 | return 0; |
1414 | } |
1415 | |
1416 | int |
864dbfa3 |
1417 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1418 | { |
1419 | STRLEN len; |
1420 | SV *lsv = LvTARG(sv); |
1421 | char *tmps = SvPV(lsv,len); |
1422 | I32 offs = LvTARGOFF(sv); |
1423 | I32 rem = LvTARGLEN(sv); |
1424 | |
1425 | if (offs > len) |
1426 | offs = len; |
1427 | if (rem + offs > len) |
1428 | rem = len - offs; |
1429 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
1430 | return 0; |
1431 | } |
1432 | |
1433 | int |
864dbfa3 |
1434 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1435 | { |
8990e307 |
1436 | STRLEN len; |
1437 | char *tmps = SvPV(sv,len); |
1438 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1439 | return 0; |
1440 | } |
1441 | |
1442 | int |
864dbfa3 |
1443 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1444 | { |
a863c7d1 |
1445 | dTHR; |
565764a8 |
1446 | TAINT_IF((mg->mg_len & 1) || |
155aba94 |
1447 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 |
1448 | return 0; |
1449 | } |
1450 | |
1451 | int |
864dbfa3 |
1452 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1453 | { |
11343788 |
1454 | dTHR; |
3280af22 |
1455 | if (PL_localizing) { |
1456 | if (PL_localizing == 1) |
565764a8 |
1457 | mg->mg_len <<= 1; |
748a9306 |
1458 | else |
565764a8 |
1459 | mg->mg_len >>= 1; |
a0d0e21e |
1460 | } |
3280af22 |
1461 | else if (PL_tainted) |
565764a8 |
1462 | mg->mg_len |= 1; |
748a9306 |
1463 | else |
565764a8 |
1464 | mg->mg_len &= ~1; |
463ee0b2 |
1465 | return 0; |
1466 | } |
1467 | |
1468 | int |
864dbfa3 |
1469 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1470 | { |
1471 | SV *lsv = LvTARG(sv); |
6ff81951 |
1472 | |
1473 | if (!lsv) { |
155aba94 |
1474 | (void)SvOK_off(sv); |
6ff81951 |
1475 | return 0; |
1476 | } |
6ff81951 |
1477 | |
81e118e0 |
1478 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 |
1479 | return 0; |
1480 | } |
1481 | |
1482 | int |
864dbfa3 |
1483 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1484 | { |
1485 | do_vecset(sv); /* XXX slurp this routine */ |
1486 | return 0; |
1487 | } |
1488 | |
1489 | int |
864dbfa3 |
1490 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc |
1491 | { |
71be2cbc |
1492 | SV *targ = Nullsv; |
5f05dabc |
1493 | if (LvTARGLEN(sv)) { |
68dc0745 |
1494 | if (mg->mg_obj) { |
74e13ce4 |
1495 | SV *ahv = LvTARG(sv); |
1496 | if (SvTYPE(ahv) == SVt_PVHV) { |
1497 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1498 | if (he) |
1499 | targ = HeVAL(he); |
1500 | } |
1501 | else { |
1502 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); |
1503 | if (svp) |
1504 | targ = *svp; |
1505 | } |
68dc0745 |
1506 | } |
1507 | else { |
3c78fafa |
1508 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1509 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1510 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1511 | } |
3280af22 |
1512 | if (targ && targ != &PL_sv_undef) { |
e858de61 |
1513 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1514 | /* somebody else defined it for us */ |
1515 | SvREFCNT_dec(LvTARG(sv)); |
1516 | LvTARG(sv) = SvREFCNT_inc(targ); |
1517 | LvTARGLEN(sv) = 0; |
1518 | SvREFCNT_dec(mg->mg_obj); |
1519 | mg->mg_obj = Nullsv; |
1520 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1521 | } |
5f05dabc |
1522 | } |
71be2cbc |
1523 | else |
1524 | targ = LvTARG(sv); |
3280af22 |
1525 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
1526 | return 0; |
1527 | } |
1528 | |
1529 | int |
864dbfa3 |
1530 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc |
1531 | { |
1532 | if (LvTARGLEN(sv)) |
68dc0745 |
1533 | vivify_defelem(sv); |
1534 | if (LvTARG(sv)) { |
5f05dabc |
1535 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1536 | SvSETMAGIC(LvTARG(sv)); |
1537 | } |
5f05dabc |
1538 | return 0; |
1539 | } |
1540 | |
71be2cbc |
1541 | void |
864dbfa3 |
1542 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc |
1543 | { |
e858de61 |
1544 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 |
1545 | MAGIC *mg; |
1546 | SV *value = Nullsv; |
71be2cbc |
1547 | |
68dc0745 |
1548 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1549 | return; |
68dc0745 |
1550 | if (mg->mg_obj) { |
74e13ce4 |
1551 | SV *ahv = LvTARG(sv); |
2d8e6c8d |
1552 | STRLEN n_a; |
74e13ce4 |
1553 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 |
1554 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1555 | if (he) |
1556 | value = HeVAL(he); |
1557 | } |
1558 | else { |
af7f9c15 |
1559 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1560 | if (svp) |
1561 | value = *svp; |
1562 | } |
3280af22 |
1563 | if (!value || value == &PL_sv_undef) |
cea2e8a9 |
1564 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc |
1565 | } |
68dc0745 |
1566 | else { |
1567 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1568 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1569 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1570 | else { |
1571 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
1572 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 |
1573 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 |
1574 | } |
1575 | } |
3e3baf6d |
1576 | (void)SvREFCNT_inc(value); |
68dc0745 |
1577 | SvREFCNT_dec(LvTARG(sv)); |
1578 | LvTARG(sv) = value; |
71be2cbc |
1579 | LvTARGLEN(sv) = 0; |
68dc0745 |
1580 | SvREFCNT_dec(mg->mg_obj); |
1581 | mg->mg_obj = Nullsv; |
1582 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1583 | } |
1584 | |
1585 | int |
864dbfa3 |
1586 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 |
1587 | { |
1588 | AV *av = (AV*)mg->mg_obj; |
1589 | SV **svp = AvARRAY(av); |
1590 | I32 i = AvFILLp(av); |
1591 | while (i >= 0) { |
1592 | if (svp[i] && svp[i] != &PL_sv_undef) { |
1593 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 |
1594 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 |
1595 | /* XXX Should we check that it hasn't changed? */ |
1596 | SvRV(svp[i]) = 0; |
155aba94 |
1597 | (void)SvOK_off(svp[i]); |
810b8aa5 |
1598 | SvWEAKREF_off(svp[i]); |
1599 | svp[i] = &PL_sv_undef; |
1600 | } |
1601 | i--; |
1602 | } |
1603 | return 0; |
1604 | } |
1605 | |
1606 | int |
864dbfa3 |
1607 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
1608 | { |
565764a8 |
1609 | mg->mg_len = -1; |
c6496cc7 |
1610 | SvSCREAM_off(sv); |
93a17b20 |
1611 | return 0; |
1612 | } |
1613 | |
1614 | int |
864dbfa3 |
1615 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1616 | { |
463ee0b2 |
1617 | sv_unmagic(sv, 'B'); |
79072805 |
1618 | SvVALID_off(sv); |
1619 | return 0; |
1620 | } |
1621 | |
1622 | int |
864dbfa3 |
1623 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff |
1624 | { |
1625 | sv_unmagic(sv, 'f'); |
1626 | SvCOMPILED_off(sv); |
1627 | return 0; |
1628 | } |
1629 | |
1630 | int |
864dbfa3 |
1631 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1632 | { |
1633 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1634 | |
1635 | if (uf && uf->uf_set) |
1636 | (*uf->uf_set)(uf->uf_index, sv); |
1637 | return 0; |
1638 | } |
1639 | |
c277df42 |
1640 | int |
864dbfa3 |
1641 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 |
1642 | { |
1643 | regexp *re = (regexp *)mg->mg_obj; |
1644 | ReREFCNT_dec(re); |
1645 | return 0; |
1646 | } |
1647 | |
7a4c00b4 |
1648 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1649 | int |
864dbfa3 |
1650 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 |
1651 | { |
1652 | /* |
838b5b74 |
1653 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 |
1654 | * and vanished with a faint plop. |
1655 | */ |
7a4c00b4 |
1656 | if (mg->mg_ptr) { |
1657 | Safefree(mg->mg_ptr); |
1658 | mg->mg_ptr = NULL; |
565764a8 |
1659 | mg->mg_len = -1; |
7a4c00b4 |
1660 | } |
bbce6d69 |
1661 | return 0; |
1662 | } |
7a4c00b4 |
1663 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1664 | |
1665 | int |
864dbfa3 |
1666 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1667 | { |
11343788 |
1668 | dTHR; |
79072805 |
1669 | register char *s; |
1670 | I32 i; |
8990e307 |
1671 | STRLEN len; |
79072805 |
1672 | switch (*mg->mg_ptr) { |
748a9306 |
1673 | case '\001': /* ^A */ |
3280af22 |
1674 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
1675 | break; |
49460fe6 |
1676 | case '\003': /* ^C */ |
1677 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1678 | break; |
1679 | |
79072805 |
1680 | case '\004': /* ^D */ |
3280af22 |
1681 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1682 | DEBUG_x(dump_all()); |
1683 | break; |
28f23441 |
1684 | case '\005': /* ^E */ |
cd39f2b6 |
1685 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 |
1686 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 |
1687 | #else |
cd39f2b6 |
1688 | # ifdef VMS |
1689 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf |
1690 | # else |
cd39f2b6 |
1691 | # ifdef WIN32 |
1692 | SetLastError( SvIV(sv) ); |
1693 | # else |
1694 | # ifndef OS2 |
f86702cc |
1695 | /* will anyone ever use this? */ |
1696 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
cd39f2b6 |
1697 | # endif |
048c1ddf |
1698 | # endif |
1699 | # endif |
22fae026 |
1700 | #endif |
28f23441 |
1701 | break; |
79072805 |
1702 | case '\006': /* ^F */ |
3280af22 |
1703 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1704 | break; |
a0d0e21e |
1705 | case '\010': /* ^H */ |
3280af22 |
1706 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
1707 | break; |
9d116dd7 |
1708 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
1709 | if (PL_inplace) |
1710 | Safefree(PL_inplace); |
79072805 |
1711 | if (SvOK(sv)) |
2d8e6c8d |
1712 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 |
1713 | else |
3280af22 |
1714 | PL_inplace = Nullch; |
79072805 |
1715 | break; |
28f23441 |
1716 | case '\017': /* ^O */ |
3280af22 |
1717 | if (PL_osname) |
1718 | Safefree(PL_osname); |
28f23441 |
1719 | if (SvOK(sv)) |
2d8e6c8d |
1720 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 |
1721 | else |
3280af22 |
1722 | PL_osname = Nullch; |
28f23441 |
1723 | break; |
79072805 |
1724 | case '\020': /* ^P */ |
3280af22 |
1725 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e |
1726 | if (PL_perldb && !PL_DBsingle) |
1727 | init_debugger(); |
79072805 |
1728 | break; |
1729 | case '\024': /* ^T */ |
88e89b8a |
1730 | #ifdef BIG_TIME |
6b88bc9c |
1731 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
1732 | #else |
3280af22 |
1733 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1734 | #endif |
79072805 |
1735 | break; |
46487f74 |
1736 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 |
1737 | if (*(mg->mg_ptr+1) == '\0') { |
1738 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1739 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1740 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 |
1741 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 |
1742 | } |
599cee73 |
1743 | } |
6a818117 |
1744 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 |
1745 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e |
1746 | if (!SvPOK(sv) && PL_localizing) { |
1747 | sv_setpvn(sv, WARN_NONEstring, WARNsize); |
d3a7d8c7 |
1748 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e |
1749 | break; |
1750 | } |
f4fc7782 |
1751 | { |
b5477537 |
1752 | STRLEN len, i; |
d3a7d8c7 |
1753 | int accumulate = 0 ; |
f4fc7782 |
1754 | int any_fatals = 0 ; |
d3a7d8c7 |
1755 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 |
1756 | for (i = 0 ; i < len ; ++i) { |
1757 | accumulate |= ptr[i] ; |
1758 | any_fatals |= (ptr[i] & 0xAA) ; |
1759 | } |
d3a7d8c7 |
1760 | if (!accumulate) |
1761 | PL_compiling.cop_warnings = pWARN_NONE; |
f4fc7782 |
1762 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1763 | PL_compiling.cop_warnings = pWARN_ALL; |
1764 | PL_dowarn |= G_WARN_ONCE ; |
1765 | } |
d3a7d8c7 |
1766 | else { |
1767 | if (specialWARN(PL_compiling.cop_warnings)) |
1768 | PL_compiling.cop_warnings = newSVsv(sv) ; |
1769 | else |
1770 | sv_setsv(PL_compiling.cop_warnings, sv); |
1771 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) |
1772 | PL_dowarn |= G_WARN_ONCE ; |
1773 | } |
f4fc7782 |
1774 | |
d3a7d8c7 |
1775 | } |
4438c4b7 |
1776 | } |
971a9dd3 |
1777 | } |
46487f74 |
1778 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1779 | PL_widesyscalls = SvTRUE(sv); |
79072805 |
1780 | break; |
1781 | case '.': |
3280af22 |
1782 | if (PL_localizing) { |
1783 | if (PL_localizing == 1) |
7766f137 |
1784 | SAVESPTR(PL_last_in_gv); |
748a9306 |
1785 | } |
3280af22 |
1786 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1787 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); |
79072805 |
1788 | break; |
1789 | case '^': |
3280af22 |
1790 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1791 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1792 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1793 | break; |
1794 | case '~': |
3280af22 |
1795 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1796 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1797 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1798 | break; |
1799 | case '=': |
3280af22 |
1800 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1801 | break; |
1802 | case '-': |
3280af22 |
1803 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1804 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1805 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
1806 | break; |
1807 | case '%': |
3280af22 |
1808 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1809 | break; |
1810 | case '|': |
4b65379b |
1811 | { |
3280af22 |
1812 | IO *io = GvIOp(PL_defoutgv); |
4b65379b |
1813 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1814 | IoFLAGS(io) &= ~IOf_FLUSH; |
1815 | else { |
1816 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1817 | PerlIO *ofp = IoOFP(io); |
1818 | if (ofp) |
1819 | (void)PerlIO_flush(ofp); |
1820 | IoFLAGS(io) |= IOf_FLUSH; |
1821 | } |
1822 | } |
79072805 |
1823 | } |
1824 | break; |
1825 | case '*': |
463ee0b2 |
1826 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 |
1827 | PL_multiline = (i != 0); |
79072805 |
1828 | break; |
1829 | case '/': |
3280af22 |
1830 | SvREFCNT_dec(PL_nrs); |
1831 | PL_nrs = newSVsv(sv); |
1832 | SvREFCNT_dec(PL_rs); |
1833 | PL_rs = SvREFCNT_inc(PL_nrs); |
79072805 |
1834 | break; |
1835 | case '\\': |
3280af22 |
1836 | if (PL_ors) |
1837 | Safefree(PL_ors); |
009c130f |
1838 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
1839 | s = SvPV(sv,PL_orslen); |
1840 | PL_ors = savepvn(s,PL_orslen); |
1841 | } |
e3c19b7b |
1842 | else { |
3280af22 |
1843 | PL_ors = Nullch; |
1844 | PL_orslen = 0; |
e3c19b7b |
1845 | } |
79072805 |
1846 | break; |
1847 | case ',': |
3280af22 |
1848 | if (PL_ofs) |
1849 | Safefree(PL_ofs); |
1850 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); |
79072805 |
1851 | break; |
1852 | case '#': |
3280af22 |
1853 | if (PL_ofmt) |
1854 | Safefree(PL_ofmt); |
2d8e6c8d |
1855 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 |
1856 | break; |
1857 | case '[': |
3280af22 |
1858 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1859 | break; |
1860 | case '?': |
ff0cee69 |
1861 | #ifdef COMPLEX_STATUS |
6b88bc9c |
1862 | if (PL_localizing == 2) { |
1863 | PL_statusvalue = LvTARGOFF(sv); |
1864 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
1865 | } |
1866 | else |
1867 | #endif |
1868 | #ifdef VMSISH_STATUS |
1869 | if (VMSISH_STATUS) |
1870 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1871 | else |
1872 | #endif |
1873 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1874 | break; |
1875 | case '!': |
78987ded |
1876 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc |
1877 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1878 | break; |
1879 | case '<': |
3280af22 |
1880 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1881 | if (PL_delaymagic) { |
1882 | PL_delaymagic |= DM_RUID; |
79072805 |
1883 | break; /* don't do magic till later */ |
1884 | } |
1885 | #ifdef HAS_SETRUID |
b28d0864 |
1886 | (void)setruid((Uid_t)PL_uid); |
79072805 |
1887 | #else |
1888 | #ifdef HAS_SETREUID |
3280af22 |
1889 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
1890 | #else |
85e6fe83 |
1891 | #ifdef HAS_SETRESUID |
b28d0864 |
1892 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1893 | #else |
b28d0864 |
1894 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1895 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
1896 | else { |
d8eceb89 |
1897 | PL_uid = PerlProc_getuid(); |
cea2e8a9 |
1898 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e |
1899 | } |
79072805 |
1900 | #endif |
1901 | #endif |
85e6fe83 |
1902 | #endif |
d8eceb89 |
1903 | PL_uid = PerlProc_getuid(); |
3280af22 |
1904 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1905 | break; |
1906 | case '>': |
3280af22 |
1907 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1908 | if (PL_delaymagic) { |
1909 | PL_delaymagic |= DM_EUID; |
79072805 |
1910 | break; /* don't do magic till later */ |
1911 | } |
1912 | #ifdef HAS_SETEUID |
3280af22 |
1913 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
1914 | #else |
1915 | #ifdef HAS_SETREUID |
b28d0864 |
1916 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
1917 | #else |
1918 | #ifdef HAS_SETRESUID |
6b88bc9c |
1919 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
1920 | #else |
b28d0864 |
1921 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1922 | PerlProc_setuid(PL_euid); |
a0d0e21e |
1923 | else { |
e8ee3774 |
1924 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 |
1925 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e |
1926 | } |
79072805 |
1927 | #endif |
1928 | #endif |
85e6fe83 |
1929 | #endif |
d8eceb89 |
1930 | PL_euid = PerlProc_geteuid(); |
3280af22 |
1931 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1932 | break; |
1933 | case '(': |
3280af22 |
1934 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1935 | if (PL_delaymagic) { |
1936 | PL_delaymagic |= DM_RGID; |
79072805 |
1937 | break; /* don't do magic till later */ |
1938 | } |
1939 | #ifdef HAS_SETRGID |
b28d0864 |
1940 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
1941 | #else |
1942 | #ifdef HAS_SETREGID |
3280af22 |
1943 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
1944 | #else |
1945 | #ifdef HAS_SETRESGID |
b28d0864 |
1946 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1947 | #else |
b28d0864 |
1948 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1949 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
1950 | else { |
d8eceb89 |
1951 | PL_gid = PerlProc_getgid(); |
cea2e8a9 |
1952 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 |
1953 | } |
79072805 |
1954 | #endif |
1955 | #endif |
85e6fe83 |
1956 | #endif |
d8eceb89 |
1957 | PL_gid = PerlProc_getgid(); |
3280af22 |
1958 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1959 | break; |
1960 | case ')': |
5cd24f17 |
1961 | #ifdef HAS_SETGROUPS |
1962 | { |
2d8e6c8d |
1963 | char *p = SvPV(sv, len); |
5cd24f17 |
1964 | Groups_t gary[NGROUPS]; |
1965 | |
5cd24f17 |
1966 | while (isSPACE(*p)) |
1967 | ++p; |
2d4389e4 |
1968 | PL_egid = Atol(p); |
5cd24f17 |
1969 | for (i = 0; i < NGROUPS; ++i) { |
1970 | while (*p && !isSPACE(*p)) |
1971 | ++p; |
1972 | while (isSPACE(*p)) |
1973 | ++p; |
1974 | if (!*p) |
1975 | break; |
2d4389e4 |
1976 | gary[i] = Atol(p); |
5cd24f17 |
1977 | } |
8cc95fdb |
1978 | if (i) |
1979 | (void)setgroups(i, gary); |
5cd24f17 |
1980 | } |
1981 | #else /* HAS_SETGROUPS */ |
b28d0864 |
1982 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1983 | #endif /* HAS_SETGROUPS */ |
3280af22 |
1984 | if (PL_delaymagic) { |
1985 | PL_delaymagic |= DM_EGID; |
79072805 |
1986 | break; /* don't do magic till later */ |
1987 | } |
1988 | #ifdef HAS_SETEGID |
3280af22 |
1989 | (void)setegid((Gid_t)PL_egid); |
79072805 |
1990 | #else |
1991 | #ifdef HAS_SETREGID |
b28d0864 |
1992 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
1993 | #else |
1994 | #ifdef HAS_SETRESGID |
b28d0864 |
1995 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
1996 | #else |
b28d0864 |
1997 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1998 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
1999 | else { |
d8eceb89 |
2000 | PL_egid = PerlProc_getegid(); |
cea2e8a9 |
2001 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 |
2002 | } |
79072805 |
2003 | #endif |
2004 | #endif |
85e6fe83 |
2005 | #endif |
d8eceb89 |
2006 | PL_egid = PerlProc_getegid(); |
3280af22 |
2007 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2008 | break; |
2009 | case ':': |
2d8e6c8d |
2010 | PL_chopset = SvPV_force(sv,len); |
79072805 |
2011 | break; |
cd39f2b6 |
2012 | #ifndef MACOS_TRADITIONAL |
79072805 |
2013 | case '0': |
4bc88a62 |
2014 | #ifdef HAS_SETPROCTITLE |
2015 | /* The BSDs don't show the argv[] in ps(1) output, they |
2016 | * show a string from the process struct and provide |
2017 | * the setproctitle() routine to manipulate that. */ |
2018 | { |
2019 | s = SvPV(sv, len); |
9aad2c0e |
2020 | # if __FreeBSD_version >= 410001 |
2021 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 |
2022 | * but not the "(perl) suffix from the ps(1) |
2023 | * output, because that's what ps(1) shows if the |
2024 | * argv[] is modified. */ |
2025 | setproctitle("-%s", s, len + 1); |
9aad2c0e |
2026 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 |
2027 | /* This doesn't really work if you assume that |
2028 | * $0 = 'foobar'; will wipe out 'perl' from the $0 |
2029 | * because in ps(1) output the result will be like |
2030 | * sprintf("perl: %s (perl)", s) |
2031 | * I guess this is a security feature: |
2032 | * one (a user process) cannot get rid of the original name. |
2033 | * --jhi */ |
2034 | setproctitle("%s", s); |
2035 | # endif |
2036 | } |
2037 | #endif |
3280af22 |
2038 | if (!PL_origalen) { |
2039 | s = PL_origargv[0]; |
79072805 |
2040 | s += strlen(s); |
2041 | /* See if all the arguments are contiguous in memory */ |
3280af22 |
2042 | for (i = 1; i < PL_origargc; i++) { |
2043 | if (PL_origargv[i] == s + 1 |
fb73857a |
2044 | #ifdef OS2 |
6b88bc9c |
2045 | || PL_origargv[i] == s + 2 |
fb73857a |
2046 | #endif |
2047 | ) |
379c4362 |
2048 | { |
2049 | ++s; |
2050 | s += strlen(s); /* this one is ok too */ |
2051 | } |
fb73857a |
2052 | else |
2053 | break; |
79072805 |
2054 | } |
bbce6d69 |
2055 | /* can grab env area too? */ |
3280af22 |
2056 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a |
2057 | #ifdef OS2 |
6b88bc9c |
2058 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a |
2059 | #endif |
2060 | )) { |
66b1d557 |
2061 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
2062 | /* force copy of environment */ |
3280af22 |
2063 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 |
2064 | if (PL_origenviron[i] == s + 1) { |
2065 | ++s; |
2066 | s += strlen(s); |
2067 | } |
fb73857a |
2068 | else |
2069 | break; |
79072805 |
2070 | } |
3280af22 |
2071 | PL_origalen = s - PL_origargv[0]; |
79072805 |
2072 | } |
a0d0e21e |
2073 | s = SvPV_force(sv,len); |
8990e307 |
2074 | i = len; |
3280af22 |
2075 | if (i >= PL_origalen) { |
2076 | i = PL_origalen; |
fb73857a |
2077 | /* don't allow system to limit $0 seen by script */ |
2078 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
3280af22 |
2079 | Copy(s, PL_origargv[0], i, char); |
2080 | s = PL_origargv[0]+i; |
fb73857a |
2081 | *s = '\0'; |
79072805 |
2082 | } |
2083 | else { |
3280af22 |
2084 | Copy(s, PL_origargv[0], i, char); |
2085 | s = PL_origargv[0]+i; |
79072805 |
2086 | *s++ = '\0'; |
3280af22 |
2087 | while (++i < PL_origalen) |
8990e307 |
2088 | *s++ = ' '; |
3280af22 |
2089 | s = PL_origargv[0]+i; |
2090 | for (i = 1; i < PL_origargc; i++) |
2091 | PL_origargv[i] = Nullch; |
79072805 |
2092 | } |
2093 | break; |
cd39f2b6 |
2094 | #endif |
a863c7d1 |
2095 | #ifdef USE_THREADS |
2096 | case '@': |
38a03e6e |
2097 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
2098 | break; |
2099 | #endif /* USE_THREADS */ |
79072805 |
2100 | } |
2101 | return 0; |
2102 | } |
2103 | |
f93b4edd |
2104 | #ifdef USE_THREADS |
2105 | int |
864dbfa3 |
2106 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd |
2107 | { |
2108 | dTHR; |
b900a521 |
2109 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2110 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", |
2111 | PTR2UV(thr), PTR2UV(sv));) |
f93b4edd |
2112 | if (MgOWNER(mg)) |
cea2e8a9 |
2113 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd |
2114 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2115 | COND_DESTROY(MgCONDP(mg)); |
2116 | return 0; |
2117 | } |
2118 | #endif /* USE_THREADS */ |
2119 | |
79072805 |
2120 | I32 |
864dbfa3 |
2121 | Perl_whichsig(pTHX_ char *sig) |
79072805 |
2122 | { |
2123 | register char **sigv; |
2124 | |
22c35a8c |
2125 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 |
2126 | if (strEQ(sig,*sigv)) |
22c35a8c |
2127 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 |
2128 | #ifdef SIGCLD |
2129 | if (strEQ(sig,"CHLD")) |
2130 | return SIGCLD; |
2131 | #endif |
2132 | #ifdef SIGCHLD |
2133 | if (strEQ(sig,"CLD")) |
2134 | return SIGCHLD; |
2135 | #endif |
2136 | return 0; |
2137 | } |
2138 | |
84902520 |
2139 | static SV* sig_sv; |
2140 | |
ecfc5424 |
2141 | Signal_t |
cea2e8a9 |
2142 | Perl_sighandler(int sig) |
79072805 |
2143 | { |
71d280e3 |
2144 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2145 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ |
2146 | #else |
cea2e8a9 |
2147 | dTHX; |
71d280e3 |
2148 | #endif |
79072805 |
2149 | dSP; |
00d579c5 |
2150 | GV *gv = Nullgv; |
a0d0e21e |
2151 | HV *st; |
3280af22 |
2152 | SV *sv, *tSv = PL_Sv; |
00d579c5 |
2153 | CV *cv = Nullcv; |
533c011a |
2154 | OP *myop = PL_op; |
84902520 |
2155 | U32 flags = 0; |
155aba94 |
2156 | I32 o_save_i = PL_savestack_ix; |
3280af22 |
2157 | XPV *tXpv = PL_Xpv; |
71d280e3 |
2158 | |
2159 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2160 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ |
2161 | #endif |
84902520 |
2162 | |
3280af22 |
2163 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2164 | flags |= 1; |
3280af22 |
2165 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2166 | flags |= 4; |
3280af22 |
2167 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 |
2168 | flags |= 8; |
3280af22 |
2169 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2170 | flags |= 16; |
2171 | |
22c35a8c |
2172 | if (!PL_psig_ptr[sig]) |
cea2e8a9 |
2173 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c |
2174 | PL_sig_name[sig]); |
ff0cee69 |
2175 | |
84902520 |
2176 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2177 | infinity, so we fix 4 (in fact 5): */ |
2178 | if (flags & 1) { |
3280af22 |
2179 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2180 | o_save_i = PL_savestack_ix; |
c76ac1ee |
2181 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 |
2182 | } |
2183 | if (flags & 4) |
3280af22 |
2184 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2185 | if (flags & 8) { |
3280af22 |
2186 | PL_retstack_ix++; |
2187 | PL_retstack[PL_retstack_ix] = NULL; |
84902520 |
2188 | } |
2189 | if (flags & 16) |
3280af22 |
2190 | PL_scopestack_ix += 1; |
84902520 |
2191 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c |
2192 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 |
2193 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c |
2194 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 |
2195 | |
a0d0e21e |
2196 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2197 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 |
2198 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c |
2199 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 |
2200 | : ((cv && CvGV(cv)) |
2201 | ? GvENAME(CvGV(cv)) |
2202 | : "__ANON__"))); |
2203 | goto cleanup; |
79072805 |
2204 | } |
2205 | |
22c35a8c |
2206 | if(PL_psig_name[sig]) { |
2207 | sv = SvREFCNT_inc(PL_psig_name[sig]); |
84902520 |
2208 | flags |= 64; |
2209 | sig_sv = sv; |
2210 | } else { |
ff0cee69 |
2211 | sv = sv_newmortal(); |
22c35a8c |
2212 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a |
2213 | } |
e336de0d |
2214 | |
e788e7d3 |
2215 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2216 | PUSHMARK(SP); |
79072805 |
2217 | PUSHs(sv); |
79072805 |
2218 | PUTBACK; |
a0d0e21e |
2219 | |
864dbfa3 |
2220 | call_sv((SV*)cv, G_DISCARD); |
79072805 |
2221 | |
d3acc0f7 |
2222 | POPSTACK; |
00d579c5 |
2223 | cleanup: |
84902520 |
2224 | if (flags & 1) |
3280af22 |
2225 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 |
2226 | if (flags & 4) |
3280af22 |
2227 | PL_markstack_ptr--; |
84902520 |
2228 | if (flags & 8) |
3280af22 |
2229 | PL_retstack_ix--; |
84902520 |
2230 | if (flags & 16) |
3280af22 |
2231 | PL_scopestack_ix -= 1; |
84902520 |
2232 | if (flags & 64) |
2233 | SvREFCNT_dec(sv); |
533c011a |
2234 | PL_op = myop; /* Apparently not needed... */ |
84902520 |
2235 | |
3280af22 |
2236 | PL_Sv = tSv; /* Restore global temporaries. */ |
2237 | PL_Xpv = tXpv; |
79072805 |
2238 | return; |
2239 | } |
4e35701f |
2240 | |
2241 | |
51371543 |
2242 | #ifdef PERL_OBJECT |
51371543 |
2243 | #include "XSUB.h" |
2244 | #endif |
2245 | |
2246 | static void |
2247 | restore_magic(pTHXo_ void *p) |
2248 | { |
2249 | dTHR; |
48944bdf |
2250 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 |
2251 | SV* sv = mgs->mgs_sv; |
2252 | |
2253 | if (!sv) |
2254 | return; |
2255 | |
2256 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
2257 | { |
2258 | if (mgs->mgs_flags) |
2259 | SvFLAGS(sv) |= mgs->mgs_flags; |
2260 | else |
2261 | mg_magical(sv); |
2262 | if (SvGMAGICAL(sv)) |
2263 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
2264 | } |
2265 | |
2266 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ |
2267 | |
2268 | /* If we're still on top of the stack, pop us off. (That condition |
2269 | * will be satisfied if restore_magic was called explicitly, but *not* |
2270 | * if it's being called via leave_scope.) |
2271 | * The reason for doing this is that otherwise, things like sv_2cv() |
2272 | * may leave alloc gunk on the savestack, and some code |
2273 | * (e.g. sighandler) doesn't expect that... |
2274 | */ |
2275 | if (PL_savestack_ix == mgs->mgs_ss_ix) |
2276 | { |
2277 | I32 popval = SSPOPINT; |
c76ac1ee |
2278 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 |
2279 | PL_savestack_ix -= 2; |
2280 | popval = SSPOPINT; |
2281 | assert(popval == SAVEt_ALLOC); |
2282 | popval = SSPOPINT; |
2283 | PL_savestack_ix -= popval; |
2284 | } |
2285 | |
2286 | } |
2287 | |
2288 | static void |
2289 | unwind_handler_stack(pTHXo_ void *p) |
2290 | { |
2291 | dTHR; |
2292 | U32 flags = *(U32*)p; |
2293 | |
2294 | if (flags & 1) |
2295 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
2296 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2297 | if (flags & 64) |
2298 | SvREFCNT_dec(sig_sv); |
2299 | } |