Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
bc89e66f |
3 | * Copyright (c) 1991-2001, 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 | |
5cd24f17 |
19 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 |
20 | # ifndef NGROUPS |
21 | # define NGROUPS 32 |
22 | # endif |
b7953727 |
23 | # ifdef I_GRP |
24 | # include <grp.h> |
25 | # endif |
188ea221 |
26 | #endif |
27 | |
51371543 |
28 | static void restore_magic(pTHXo_ void *p); |
29 | static void unwind_handler_stack(pTHXo_ void *p); |
30 | |
c07a80fd |
31 | /* |
32 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
33 | */ |
34 | |
35 | struct magic_state { |
36 | SV* mgs_sv; |
37 | U32 mgs_flags; |
455ece5e |
38 | I32 mgs_ss_ix; |
c07a80fd |
39 | }; |
455ece5e |
40 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e |
41 | |
42 | STATIC void |
cea2e8a9 |
43 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd |
44 | { |
455ece5e |
45 | MGS* mgs; |
c07a80fd |
46 | assert(SvMAGICAL(sv)); |
47 | |
c76ac1ee |
48 | SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix); |
455ece5e |
49 | |
50 | mgs = SSPTR(mgs_ix, MGS*); |
c07a80fd |
51 | mgs->mgs_sv = sv; |
52 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
455ece5e |
53 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd |
54 | |
55 | SvMAGICAL_off(sv); |
56 | SvREADONLY_off(sv); |
06759ea0 |
57 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
58 | } |
59 | |
954c1994 |
60 | /* |
61 | =for apidoc mg_magical |
62 | |
63 | Turns on the magical status of an SV. See C<sv_magic>. |
64 | |
65 | =cut |
66 | */ |
67 | |
8990e307 |
68 | void |
864dbfa3 |
69 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 |
70 | { |
71 | MAGIC* mg; |
72 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
73 | MGVTBL* vtbl = mg->mg_virtual; |
74 | if (vtbl) { |
2b260de0 |
75 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
76 | SvGMAGICAL_on(sv); |
77 | if (vtbl->svt_set) |
78 | SvSMAGICAL_on(sv); |
2b260de0 |
79 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 |
80 | SvRMAGICAL_on(sv); |
81 | } |
82 | } |
83 | } |
84 | |
954c1994 |
85 | /* |
86 | =for apidoc mg_get |
87 | |
88 | Do magic after a value is retrieved from the SV. See C<sv_magic>. |
89 | |
90 | =cut |
91 | */ |
92 | |
79072805 |
93 | int |
864dbfa3 |
94 | Perl_mg_get(pTHX_ SV *sv) |
79072805 |
95 | { |
455ece5e |
96 | I32 mgs_ix; |
79072805 |
97 | MAGIC* mg; |
c6496cc7 |
98 | MAGIC** mgp; |
760ac839 |
99 | int mgp_valid = 0; |
463ee0b2 |
100 | |
455ece5e |
101 | mgs_ix = SSNEW(sizeof(MGS)); |
102 | save_magic(mgs_ix, sv); |
463ee0b2 |
103 | |
c6496cc7 |
104 | mgp = &SvMAGIC(sv); |
105 | while ((mg = *mgp) != 0) { |
79072805 |
106 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
107 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe |
108 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 |
109 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
110 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
111 | (mg->mg_flags & MGf_GSKIP)) |
455ece5e |
112 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
113 | } |
c6496cc7 |
114 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
115 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
116 | mgp = &mg->mg_moremagic; |
760ac839 |
117 | mgp_valid = 1; |
118 | } |
119 | else |
120 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
121 | } |
463ee0b2 |
122 | |
51371543 |
123 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 |
124 | return 0; |
125 | } |
126 | |
954c1994 |
127 | /* |
128 | =for apidoc mg_set |
129 | |
130 | Do magic after a value is assigned to the SV. See C<sv_magic>. |
131 | |
132 | =cut |
133 | */ |
134 | |
79072805 |
135 | int |
864dbfa3 |
136 | Perl_mg_set(pTHX_ SV *sv) |
79072805 |
137 | { |
455ece5e |
138 | I32 mgs_ix; |
79072805 |
139 | MAGIC* mg; |
463ee0b2 |
140 | MAGIC* nextmg; |
141 | |
455ece5e |
142 | mgs_ix = SSNEW(sizeof(MGS)); |
143 | save_magic(mgs_ix, sv); |
463ee0b2 |
144 | |
145 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
146 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
147 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
148 | if (mg->mg_flags & MGf_GSKIP) { |
149 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
455ece5e |
150 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
151 | } |
2b260de0 |
152 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 |
153 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 |
154 | } |
463ee0b2 |
155 | |
51371543 |
156 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 |
157 | return 0; |
158 | } |
159 | |
954c1994 |
160 | /* |
161 | =for apidoc mg_length |
162 | |
163 | Report on the SV's length. See C<sv_magic>. |
164 | |
165 | =cut |
166 | */ |
167 | |
79072805 |
168 | U32 |
864dbfa3 |
169 | Perl_mg_length(pTHX_ SV *sv) |
79072805 |
170 | { |
171 | MAGIC* mg; |
748a9306 |
172 | char *junk; |
463ee0b2 |
173 | STRLEN len; |
463ee0b2 |
174 | |
79072805 |
175 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
176 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
177 | if (vtbl && vtbl->svt_len) { |
455ece5e |
178 | I32 mgs_ix; |
48e43a1c |
179 | |
455ece5e |
180 | mgs_ix = SSNEW(sizeof(MGS)); |
181 | save_magic(mgs_ix, sv); |
a0d0e21e |
182 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
183 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 |
184 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 |
185 | return len; |
186 | } |
187 | } |
188 | |
748a9306 |
189 | junk = SvPV(sv, len); |
463ee0b2 |
190 | return len; |
79072805 |
191 | } |
192 | |
93965878 |
193 | I32 |
864dbfa3 |
194 | Perl_mg_size(pTHX_ SV *sv) |
93965878 |
195 | { |
196 | MAGIC* mg; |
197 | I32 len; |
ac27b0f5 |
198 | |
93965878 |
199 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
200 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
201 | if (vtbl && vtbl->svt_len) { |
455ece5e |
202 | I32 mgs_ix; |
203 | |
204 | mgs_ix = SSNEW(sizeof(MGS)); |
205 | save_magic(mgs_ix, sv); |
93965878 |
206 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
207 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 |
208 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 |
209 | return len; |
210 | } |
211 | } |
212 | |
213 | switch(SvTYPE(sv)) { |
214 | case SVt_PVAV: |
215 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
216 | return len; |
217 | case SVt_PVHV: |
218 | /* FIXME */ |
219 | default: |
cea2e8a9 |
220 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 |
221 | break; |
222 | } |
223 | return 0; |
224 | } |
225 | |
954c1994 |
226 | /* |
227 | =for apidoc mg_clear |
228 | |
229 | Clear something magical that the SV represents. See C<sv_magic>. |
230 | |
231 | =cut |
232 | */ |
233 | |
79072805 |
234 | int |
864dbfa3 |
235 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 |
236 | { |
455ece5e |
237 | I32 mgs_ix; |
79072805 |
238 | MAGIC* mg; |
463ee0b2 |
239 | |
455ece5e |
240 | mgs_ix = SSNEW(sizeof(MGS)); |
241 | save_magic(mgs_ix, sv); |
463ee0b2 |
242 | |
79072805 |
243 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
244 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
245 | /* omit GSKIP -- never set here */ |
246 | |
2b260de0 |
247 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 |
248 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 |
249 | } |
463ee0b2 |
250 | |
51371543 |
251 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 |
252 | return 0; |
253 | } |
254 | |
954c1994 |
255 | /* |
256 | =for apidoc mg_find |
257 | |
258 | Finds the magic pointer for type matching the SV. See C<sv_magic>. |
259 | |
260 | =cut |
261 | */ |
262 | |
93a17b20 |
263 | MAGIC* |
864dbfa3 |
264 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 |
265 | { |
266 | MAGIC* mg; |
3f8f4626 |
267 | if (!sv) |
268 | return 0; |
93a17b20 |
269 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
270 | if (mg->mg_type == type) |
271 | return mg; |
272 | } |
273 | return 0; |
274 | } |
275 | |
954c1994 |
276 | /* |
277 | =for apidoc mg_copy |
278 | |
279 | Copies the magic from one SV to another. See C<sv_magic>. |
280 | |
281 | =cut |
282 | */ |
283 | |
79072805 |
284 | int |
864dbfa3 |
285 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 |
286 | { |
463ee0b2 |
287 | int count = 0; |
79072805 |
288 | MAGIC* mg; |
463ee0b2 |
289 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
290 | if (isUPPER(mg->mg_type)) { |
33c27489 |
291 | sv_magic(nsv, |
14befaf4 |
292 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
293 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) |
294 | ? sv : mg->mg_obj, |
33c27489 |
295 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
296 | count++; |
79072805 |
297 | } |
79072805 |
298 | } |
463ee0b2 |
299 | return count; |
79072805 |
300 | } |
301 | |
954c1994 |
302 | /* |
303 | =for apidoc mg_free |
304 | |
305 | Free any magic storage used by the SV. See C<sv_magic>. |
306 | |
307 | =cut |
308 | */ |
309 | |
79072805 |
310 | int |
864dbfa3 |
311 | Perl_mg_free(pTHX_ SV *sv) |
79072805 |
312 | { |
313 | MAGIC* mg; |
314 | MAGIC* moremagic; |
315 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
316 | MGVTBL* vtbl = mg->mg_virtual; |
317 | moremagic = mg->mg_moremagic; |
2b260de0 |
318 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 |
319 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 |
320 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 |
321 | if (mg->mg_len >= 0) |
88e89b8a |
322 | Safefree(mg->mg_ptr); |
565764a8 |
323 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
324 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 |
325 | } |
85e6fe83 |
326 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
327 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
328 | Safefree(mg); |
329 | } |
330 | SvMAGIC(sv) = 0; |
331 | return 0; |
332 | } |
333 | |
d460ef45 |
334 | |
79072805 |
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 | { |
6cef1e77 |
342 | register REGEXP *rx; |
6cef1e77 |
343 | |
8f580fb8 |
344 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
345 | if (mg->mg_obj) /* @+ */ |
346 | return rx->nparens; |
347 | else /* @- */ |
348 | return rx->lastparen; |
349 | } |
ac27b0f5 |
350 | |
942e002e |
351 | return (U32)-1; |
6cef1e77 |
352 | } |
353 | |
354 | int |
864dbfa3 |
355 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
356 | { |
6cef1e77 |
357 | register I32 paren; |
cf93c79d |
358 | register I32 s; |
6cef1e77 |
359 | register I32 i; |
360 | register REGEXP *rx; |
cf93c79d |
361 | I32 t; |
6cef1e77 |
362 | |
363 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
364 | paren = mg->mg_len; |
365 | if (paren < 0) |
366 | return 0; |
367 | if (paren <= rx->nparens && |
cf93c79d |
368 | (s = rx->startp[paren]) != -1 && |
369 | (t = rx->endp[paren]) != -1) |
6cef1e77 |
370 | { |
371 | if (mg->mg_obj) /* @+ */ |
cf93c79d |
372 | i = t; |
6cef1e77 |
373 | else /* @- */ |
cf93c79d |
374 | i = s; |
1aa99e6b |
375 | |
376 | if (i > 0 && DO_UTF8(PL_reg_sv)) { |
377 | char *b = rx->subbeg; |
378 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); |
379 | } |
6cef1e77 |
380 | sv_setiv(sv,i); |
381 | } |
382 | } |
383 | return 0; |
384 | } |
385 | |
e4b89193 |
386 | int |
a29d06ed |
387 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
388 | { |
a29d06ed |
389 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 |
390 | /* NOT REACHED */ |
391 | return 0; |
a29d06ed |
392 | } |
393 | |
93a17b20 |
394 | U32 |
864dbfa3 |
395 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
396 | { |
397 | register I32 paren; |
93a17b20 |
398 | register I32 i; |
d9f97599 |
399 | register REGEXP *rx; |
a197cbdd |
400 | I32 s1, t1; |
93a17b20 |
401 | |
402 | switch (*mg->mg_ptr) { |
403 | case '1': case '2': case '3': case '4': |
404 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
405 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
406 | |
ffc61ed2 |
407 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 |
408 | getparen: |
d9f97599 |
409 | if (paren <= rx->nparens && |
cf93c79d |
410 | (s1 = rx->startp[paren]) != -1 && |
411 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
412 | { |
cf93c79d |
413 | i = t1 - s1; |
a197cbdd |
414 | getlen: |
ffc61ed2 |
415 | if (i > 0 && DO_UTF8(PL_reg_sv)) { |
416 | char *s = rx->subbeg + s1; |
a197cbdd |
417 | char *send = rx->subbeg + t1; |
ffc61ed2 |
418 | |
60425c38 |
419 | i = t1 - s1; |
420 | if (is_utf8_string((U8*)s, i)) |
421 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); |
a197cbdd |
422 | } |
ffc61ed2 |
423 | if (i < 0) |
0844c848 |
424 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 |
425 | return i; |
93a17b20 |
426 | } |
93a17b20 |
427 | } |
748a9306 |
428 | return 0; |
93a17b20 |
429 | case '+': |
3280af22 |
430 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
431 | paren = rx->lastparen; |
13f57bf8 |
432 | if (paren) |
433 | goto getparen; |
93a17b20 |
434 | } |
748a9306 |
435 | return 0; |
93a17b20 |
436 | case '`': |
3280af22 |
437 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
438 | if (rx->startp[0] != -1) { |
439 | i = rx->startp[0]; |
a197cbdd |
440 | if (i > 0) { |
441 | s1 = 0; |
442 | t1 = i; |
443 | goto getlen; |
444 | } |
93a17b20 |
445 | } |
93a17b20 |
446 | } |
748a9306 |
447 | return 0; |
93a17b20 |
448 | case '\'': |
3280af22 |
449 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
450 | if (rx->endp[0] != -1) { |
451 | i = rx->sublen - rx->endp[0]; |
a197cbdd |
452 | if (i > 0) { |
453 | s1 = rx->endp[0]; |
454 | t1 = rx->sublen; |
455 | goto getlen; |
456 | } |
93a17b20 |
457 | } |
93a17b20 |
458 | } |
748a9306 |
459 | return 0; |
93a17b20 |
460 | } |
461 | magic_get(sv,mg); |
2d8e6c8d |
462 | if (!SvPOK(sv) && SvNIOK(sv)) { |
463 | STRLEN n_a; |
464 | sv_2pv(sv, &n_a); |
465 | } |
93a17b20 |
466 | if (SvPOK(sv)) |
467 | return SvCUR(sv); |
468 | return 0; |
469 | } |
470 | |
79072805 |
471 | int |
864dbfa3 |
472 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
473 | { |
474 | register I32 paren; |
475 | register char *s; |
476 | register I32 i; |
d9f97599 |
477 | register REGEXP *rx; |
79072805 |
478 | |
479 | switch (*mg->mg_ptr) { |
748a9306 |
480 | case '\001': /* ^A */ |
3280af22 |
481 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
482 | break; |
49460fe6 |
483 | case '\003': /* ^C */ |
484 | sv_setiv(sv, (IV)PL_minus_c); |
485 | break; |
486 | |
79072805 |
487 | case '\004': /* ^D */ |
aea4f609 |
488 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f |
489 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 |
490 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f |
491 | #endif |
79072805 |
492 | break; |
28f23441 |
493 | case '\005': /* ^E */ |
cd39f2b6 |
494 | #ifdef MACOS_TRADITIONAL |
495 | { |
496 | char msg[256]; |
ac27b0f5 |
497 | |
bf4acbe4 |
498 | sv_setnv(sv,(double)gMacPerl_OSErr); |
499 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
cd39f2b6 |
500 | } |
501 | #else |
28f23441 |
502 | #ifdef VMS |
503 | { |
504 | # include <descrip.h> |
505 | # include <starlet.h> |
506 | char msg[255]; |
507 | $DESCRIPTOR(msgdsc,msg); |
65202027 |
508 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 |
509 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
510 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
511 | else |
512 | sv_setpv(sv,""); |
513 | } |
514 | #else |
88e89b8a |
515 | #ifdef OS2 |
fb73857a |
516 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 |
517 | sv_setnv(sv, (NV)errno); |
fb73857a |
518 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
519 | } else { |
017f25f1 |
520 | if (errno != errno_isOS2) { |
521 | int tmp = _syserrno(); |
522 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
523 | Perl_rc = tmp; |
524 | } |
65202027 |
525 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a |
526 | sv_setpv(sv, os2error(Perl_rc)); |
527 | } |
88e89b8a |
528 | #else |
22fae026 |
529 | #ifdef WIN32 |
530 | { |
531 | DWORD dwErr = GetLastError(); |
65202027 |
532 | sv_setnv(sv, (NV)dwErr); |
22fae026 |
533 | if (dwErr) |
76e3520e |
534 | { |
0cb96387 |
535 | PerlProc_GetOSError(sv, dwErr); |
76e3520e |
536 | } |
22fae026 |
537 | else |
538 | sv_setpv(sv, ""); |
539 | SetLastError(dwErr); |
540 | } |
541 | #else |
65202027 |
542 | sv_setnv(sv, (NV)errno); |
28f23441 |
543 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
544 | #endif |
88e89b8a |
545 | #endif |
22fae026 |
546 | #endif |
cd39f2b6 |
547 | #endif |
946ec16e |
548 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
549 | break; |
79072805 |
550 | case '\006': /* ^F */ |
3280af22 |
551 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
552 | break; |
a0d0e21e |
553 | case '\010': /* ^H */ |
3280af22 |
554 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
555 | break; |
9d116dd7 |
556 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
557 | if (PL_inplace) |
558 | sv_setpv(sv, PL_inplace); |
79072805 |
559 | else |
3280af22 |
560 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
561 | break; |
ac27b0f5 |
562 | case '\017': /* ^O & ^OPEN */ |
563 | if (*(mg->mg_ptr+1) == '\0') |
564 | sv_setpv(sv, PL_osname); |
565 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
566 | if (!PL_compiling.cop_io) |
567 | sv_setsv(sv, &PL_sv_undef); |
568 | else { |
569 | sv_setsv(sv, PL_compiling.cop_io); |
570 | } |
571 | } |
28f23441 |
572 | break; |
79072805 |
573 | case '\020': /* ^P */ |
3280af22 |
574 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
575 | break; |
fb73857a |
576 | case '\023': /* ^S */ |
d58bf5aa |
577 | { |
3280af22 |
578 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 |
579 | (void)SvOK_off(sv); |
3280af22 |
580 | else if (PL_in_eval) |
6dc8a9e4 |
581 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
d58bf5aa |
582 | } |
fb73857a |
583 | break; |
79072805 |
584 | case '\024': /* ^T */ |
88e89b8a |
585 | #ifdef BIG_TIME |
6b88bc9c |
586 | sv_setnv(sv, PL_basetime); |
88e89b8a |
587 | #else |
3280af22 |
588 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
589 | #endif |
79072805 |
590 | break; |
46487f74 |
591 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 |
592 | if (*(mg->mg_ptr+1) == '\0') |
593 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
6a818117 |
594 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 |
595 | if (PL_compiling.cop_warnings == pWARN_NONE || |
596 | PL_compiling.cop_warnings == pWARN_STD) |
4438c4b7 |
597 | { |
598 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
599 | } |
d3a7d8c7 |
600 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 |
601 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 |
602 | } |
4438c4b7 |
603 | else { |
604 | sv_setsv(sv, PL_compiling.cop_warnings); |
ac27b0f5 |
605 | } |
d3a7d8c7 |
606 | SvPOK_only(sv); |
4438c4b7 |
607 | } |
46487f74 |
608 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
609 | sv_setiv(sv, (IV)PL_widesyscalls); |
79072805 |
610 | break; |
611 | case '1': case '2': case '3': case '4': |
612 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
613 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
614 | I32 s1, t1; |
615 | |
a863c7d1 |
616 | /* |
617 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
618 | * XXX Does the new way break anything? |
619 | */ |
ffc61ed2 |
620 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 |
621 | getparen: |
d9f97599 |
622 | if (paren <= rx->nparens && |
cf93c79d |
623 | (s1 = rx->startp[paren]) != -1 && |
624 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
625 | { |
cf93c79d |
626 | i = t1 - s1; |
627 | s = rx->subbeg + s1; |
01ec43d0 |
628 | if (!rx->subbeg) |
c2e66d9e |
629 | break; |
630 | |
13f57bf8 |
631 | getrx: |
748a9306 |
632 | if (i >= 0) { |
b7953727 |
633 | bool was_tainted = FALSE; |
3280af22 |
634 | if (PL_tainting) { |
635 | was_tainted = PL_tainted; |
636 | PL_tainted = FALSE; |
13f57bf8 |
637 | } |
cf93c79d |
638 | sv_setpvn(sv, s, i); |
bdc14a33 |
639 | if (PL_reg_sv && DO_UTF8(PL_reg_sv) && is_utf8_string((U8*)s, i)) |
7e2040f0 |
640 | SvUTF8_on(sv); |
641 | else |
642 | SvUTF8_off(sv); |
3280af22 |
643 | if (PL_tainting) |
644 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); |
748a9306 |
645 | break; |
646 | } |
79072805 |
647 | } |
79072805 |
648 | } |
3280af22 |
649 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
650 | break; |
651 | case '+': |
3280af22 |
652 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
653 | paren = rx->lastparen; |
a0d0e21e |
654 | if (paren) |
655 | goto getparen; |
79072805 |
656 | } |
3280af22 |
657 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
658 | break; |
659 | case '`': |
3280af22 |
660 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
661 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
662 | i = rx->startp[0]; |
13f57bf8 |
663 | goto getrx; |
79072805 |
664 | } |
79072805 |
665 | } |
3280af22 |
666 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
667 | break; |
668 | case '\'': |
3280af22 |
669 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
670 | if (rx->subbeg && rx->endp[0] != -1) { |
671 | s = rx->subbeg + rx->endp[0]; |
672 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
673 | goto getrx; |
79072805 |
674 | } |
79072805 |
675 | } |
3280af22 |
676 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
677 | break; |
678 | case '.': |
679 | #ifndef lint |
3280af22 |
680 | if (GvIO(PL_last_in_gv)) { |
357c8808 |
681 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 |
682 | } |
683 | #endif |
684 | break; |
685 | case '?': |
809a5acc |
686 | { |
809a5acc |
687 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
688 | #ifdef COMPLEX_STATUS |
6b88bc9c |
689 | LvTARGOFF(sv) = PL_statusvalue; |
690 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
691 | #endif |
809a5acc |
692 | } |
79072805 |
693 | break; |
694 | case '^': |
3280af22 |
695 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
696 | if (s) |
697 | sv_setpv(sv,s); |
698 | else { |
3280af22 |
699 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
700 | sv_catpv(sv,"_TOP"); |
701 | } |
702 | break; |
703 | case '~': |
3280af22 |
704 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
705 | if (!s) |
3280af22 |
706 | s = GvENAME(PL_defoutgv); |
79072805 |
707 | sv_setpv(sv,s); |
708 | break; |
709 | #ifndef lint |
710 | case '=': |
3280af22 |
711 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
712 | break; |
713 | case '-': |
3280af22 |
714 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
715 | break; |
716 | case '%': |
3280af22 |
717 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
718 | break; |
719 | #endif |
720 | case ':': |
721 | break; |
722 | case '/': |
723 | break; |
724 | case '[': |
3280af22 |
725 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
726 | break; |
727 | case '|': |
3280af22 |
728 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
729 | break; |
730 | case ',': |
79072805 |
731 | break; |
732 | case '\\': |
79072805 |
733 | break; |
734 | case '#': |
3280af22 |
735 | sv_setpv(sv,PL_ofmt); |
79072805 |
736 | break; |
737 | case '!': |
a5f75d66 |
738 | #ifdef VMS |
65202027 |
739 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
740 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
741 | #else |
88e89b8a |
742 | { |
743 | int saveerrno = errno; |
65202027 |
744 | sv_setnv(sv, (NV)errno); |
88e89b8a |
745 | #ifdef OS2 |
ed344e4f |
746 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
747 | sv_setpv(sv, os2error(Perl_rc)); |
88e89b8a |
748 | else |
a5f75d66 |
749 | #endif |
2304df62 |
750 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
751 | errno = saveerrno; |
752 | } |
753 | #endif |
946ec16e |
754 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
755 | break; |
756 | case '<': |
3280af22 |
757 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
758 | break; |
759 | case '>': |
3280af22 |
760 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
761 | break; |
762 | case '(': |
3280af22 |
763 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 |
764 | #ifdef HAS_GETGROUPS |
785fb66b |
765 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 |
766 | #endif |
79072805 |
767 | goto add_groups; |
768 | case ')': |
3280af22 |
769 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 |
770 | #ifdef HAS_GETGROUPS |
785fb66b |
771 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 |
772 | #endif |
79072805 |
773 | add_groups: |
79072805 |
774 | #ifdef HAS_GETGROUPS |
79072805 |
775 | { |
a0d0e21e |
776 | Groups_t gary[NGROUPS]; |
79072805 |
777 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
778 | while (--i >= 0) |
785fb66b |
779 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 |
780 | } |
781 | #endif |
155aba94 |
782 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
783 | break; |
784 | case '*': |
785 | break; |
cd39f2b6 |
786 | #ifndef MACOS_TRADITIONAL |
79072805 |
787 | case '0': |
788 | break; |
cd39f2b6 |
789 | #endif |
a863c7d1 |
790 | #ifdef USE_THREADS |
791 | case '@': |
38a03e6e |
792 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
793 | break; |
794 | #endif /* USE_THREADS */ |
79072805 |
795 | } |
a0d0e21e |
796 | return 0; |
79072805 |
797 | } |
798 | |
799 | int |
864dbfa3 |
800 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
801 | { |
802 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
803 | |
804 | if (uf && uf->uf_val) |
24f81a43 |
805 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 |
806 | return 0; |
807 | } |
808 | |
809 | int |
864dbfa3 |
810 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
811 | { |
812 | register char *s; |
88e89b8a |
813 | char *ptr; |
5aabfad6 |
814 | STRLEN len, klen; |
a0d0e21e |
815 | I32 i; |
1e422769 |
816 | |
a0d0e21e |
817 | s = SvPV(sv,len); |
5aabfad6 |
818 | ptr = MgPV(mg,klen); |
88e89b8a |
819 | my_setenv(ptr, s); |
1e422769 |
820 | |
a0d0e21e |
821 | #ifdef DYNAMIC_ENV_FETCH |
822 | /* We just undefd an environment var. Is a replacement */ |
823 | /* waiting in the wings? */ |
824 | if (!len) { |
5aabfad6 |
825 | SV **valp; |
6b88bc9c |
826 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 |
827 | s = SvPV(*valp, len); |
a0d0e21e |
828 | } |
829 | #endif |
1e422769 |
830 | |
39e571d4 |
831 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
832 | /* And you'll never guess what the dog had */ |
833 | /* in its mouth... */ |
3280af22 |
834 | if (PL_tainting) { |
1e422769 |
835 | MgTAINTEDDIR_off(mg); |
836 | #ifdef VMS |
5aabfad6 |
837 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
838 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
839 | struct stat sbuf; |
840 | int i = 0, j = 0; |
841 | |
842 | do { /* DCL$PATH may be a search list */ |
843 | while (1) { /* as may dev portion of any element */ |
844 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
845 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
846 | cando_by_name(S_IWUSR,0,elt) ) { |
847 | MgTAINTEDDIR_on(mg); |
848 | return 0; |
849 | } |
850 | } |
851 | if ((cp = strchr(elt, ':')) != Nullch) |
852 | *cp = '\0'; |
853 | if (my_trnlnm(elt, eltbuf, j++)) |
854 | elt = eltbuf; |
855 | else |
856 | break; |
857 | } |
858 | j = 0; |
859 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
860 | } |
861 | #endif /* VMS */ |
5aabfad6 |
862 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
863 | char *strend = s + len; |
463ee0b2 |
864 | |
865 | while (s < strend) { |
96827780 |
866 | char tmpbuf[256]; |
1e422769 |
867 | struct stat st; |
96827780 |
868 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
869 | s, strend, ':', &i); |
463ee0b2 |
870 | s++; |
96827780 |
871 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
872 | || *tmpbuf != '/' |
c6ed36e1 |
873 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
874 | MgTAINTEDDIR_on(mg); |
1e422769 |
875 | return 0; |
876 | } |
463ee0b2 |
877 | } |
79072805 |
878 | } |
879 | } |
39e571d4 |
880 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
881 | |
79072805 |
882 | return 0; |
883 | } |
884 | |
885 | int |
864dbfa3 |
886 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 |
887 | { |
2d8e6c8d |
888 | STRLEN n_a; |
889 | my_setenv(MgPV(mg,n_a),Nullch); |
85e6fe83 |
890 | return 0; |
891 | } |
892 | |
88e89b8a |
893 | int |
864dbfa3 |
894 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a |
895 | { |
896 | #if defined(VMS) |
cea2e8a9 |
897 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a |
898 | #else |
3280af22 |
899 | if (PL_localizing) { |
fb73857a |
900 | HE* entry; |
2d8e6c8d |
901 | STRLEN n_a; |
fb73857a |
902 | magic_clear_all_env(sv,mg); |
903 | hv_iterinit((HV*)sv); |
155aba94 |
904 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a |
905 | I32 keylen; |
906 | my_setenv(hv_iterkey(entry, &keylen), |
2d8e6c8d |
907 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a |
908 | } |
909 | } |
910 | #endif |
911 | return 0; |
912 | } |
913 | |
914 | int |
864dbfa3 |
915 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 |
916 | { |
ed79a026 |
917 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 |
918 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d |
919 | #else |
7766f137 |
920 | # ifdef PERL_IMPLICIT_SYS |
921 | PerlEnv_clearenv(); |
922 | # else |
923 | # ifdef WIN32 |
3e3baf6d |
924 | char *envv = GetEnvironmentStrings(); |
925 | char *cur = envv; |
926 | STRLEN len; |
927 | while (*cur) { |
928 | char *end = strchr(cur,'='); |
929 | if (end && end != cur) { |
930 | *end = '\0'; |
931 | my_setenv(cur,Nullch); |
932 | *end = '='; |
ac5c734f |
933 | cur = end + strlen(end+1)+2; |
3e3baf6d |
934 | } |
935 | else if ((len = strlen(cur))) |
936 | cur += len+1; |
937 | } |
938 | FreeEnvironmentStrings(envv); |
7766f137 |
939 | # else |
5acaa6ec |
940 | #ifdef USE_ENVIRON_ARRAY |
7766f137 |
941 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 |
942 | I32 i; |
943 | |
3280af22 |
944 | if (environ == PL_origenviron) |
f2517201 |
945 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 |
946 | else |
947 | for (i = 0; environ[i]; i++) |
f2517201 |
948 | safesysfree(environ[i]); |
7766f137 |
949 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 |
950 | |
66b1d557 |
951 | environ[0] = Nullch; |
952 | |
5acaa6ec |
953 | #endif /* USE_ENVIRON_ARRAY */ |
7766f137 |
954 | # endif /* WIN32 */ |
955 | # endif /* PERL_IMPLICIT_SYS */ |
f2517201 |
956 | #endif /* VMS */ |
3e3baf6d |
957 | return 0; |
66b1d557 |
958 | } |
959 | |
64ca3a65 |
960 | #ifndef PERL_MICRO |
66b1d557 |
961 | int |
864dbfa3 |
962 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
963 | { |
964 | I32 i; |
2d8e6c8d |
965 | STRLEN n_a; |
88e89b8a |
966 | /* Are we fetching a signal entry? */ |
2d8e6c8d |
967 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
968 | if (i) { |
22c35a8c |
969 | if(PL_psig_ptr[i]) |
970 | sv_setsv(sv,PL_psig_ptr[i]); |
88e89b8a |
971 | else { |
ff68c719 |
972 | Sighandler_t sigstate = rsignal_state(i); |
973 | |
88e89b8a |
974 | /* cache state so we don't fetch it again */ |
ff68c719 |
975 | if(sigstate == SIG_IGN) |
88e89b8a |
976 | sv_setpv(sv,"IGNORE"); |
977 | else |
3280af22 |
978 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c |
979 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
980 | SvTEMP_off(sv); |
981 | } |
982 | } |
983 | return 0; |
984 | } |
985 | int |
864dbfa3 |
986 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
987 | { |
988 | I32 i; |
2d8e6c8d |
989 | STRLEN n_a; |
88e89b8a |
990 | /* Are we clearing a signal entry? */ |
2d8e6c8d |
991 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
992 | if (i) { |
22c35a8c |
993 | if(PL_psig_ptr[i]) { |
994 | SvREFCNT_dec(PL_psig_ptr[i]); |
995 | PL_psig_ptr[i]=0; |
88e89b8a |
996 | } |
22c35a8c |
997 | if(PL_psig_name[i]) { |
998 | SvREFCNT_dec(PL_psig_name[i]); |
999 | PL_psig_name[i]=0; |
88e89b8a |
1000 | } |
1001 | } |
1002 | return 0; |
1003 | } |
3d37d572 |
1004 | |
0a8e0eff |
1005 | void |
1006 | Perl_raise_signal(pTHX_ int sig) |
1007 | { |
1008 | /* Set a flag to say this signal is pending */ |
1009 | PL_psig_pend[sig]++; |
1010 | /* And one to say _a_ signal is pending */ |
1011 | PL_sig_pending = 1; |
1012 | } |
1013 | |
1014 | Signal_t |
1015 | Perl_csighandler(int sig) |
1016 | { |
1017 | #ifdef PERL_OLD_SIGNALS |
1018 | /* Call the perl level handler now with risk we may be in malloc() etc. */ |
1019 | (*PL_sighandlerp)(sig); |
1020 | #else |
1021 | dTHX; |
1022 | Perl_raise_signal(aTHX_ sig); |
1023 | #endif |
1024 | } |
1025 | |
1026 | void |
1027 | Perl_despatch_signals(pTHX) |
1028 | { |
1029 | int sig; |
1030 | PL_sig_pending = 0; |
1031 | for (sig = 1; sig < SIG_SIZE; sig++) { |
1032 | if (PL_psig_pend[sig]) { |
1033 | PL_psig_pend[sig] = 0; |
1034 | (*PL_sighandlerp)(sig); |
1035 | } |
1036 | } |
1037 | } |
1038 | |
85e6fe83 |
1039 | int |
864dbfa3 |
1040 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1041 | { |
1042 | register char *s; |
1043 | I32 i; |
b7953727 |
1044 | SV** svp = 0; |
e72dc28c |
1045 | STRLEN len; |
a0d0e21e |
1046 | |
e72dc28c |
1047 | s = MgPV(mg,len); |
748a9306 |
1048 | if (*s == '_') { |
1049 | if (strEQ(s,"__DIE__")) |
3280af22 |
1050 | svp = &PL_diehook; |
748a9306 |
1051 | else if (strEQ(s,"__WARN__")) |
3280af22 |
1052 | svp = &PL_warnhook; |
748a9306 |
1053 | else |
cea2e8a9 |
1054 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 |
1055 | i = 0; |
4633a7c4 |
1056 | if (*svp) { |
1057 | SvREFCNT_dec(*svp); |
1058 | *svp = 0; |
1059 | } |
748a9306 |
1060 | } |
1061 | else { |
1062 | i = whichsig(s); /* ...no, a brick */ |
1063 | if (!i) { |
e476b1b5 |
1064 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 |
1065 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 |
1066 | return 0; |
1067 | } |
22c35a8c |
1068 | SvREFCNT_dec(PL_psig_name[i]); |
1069 | SvREFCNT_dec(PL_psig_ptr[i]); |
1070 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1071 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c |
1072 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c |
1073 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 |
1074 | } |
a0d0e21e |
1075 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
1076 | if (i) |
0a8e0eff |
1077 | (void)rsignal(i, &Perl_csighandler); |
748a9306 |
1078 | else |
1079 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
1080 | return 0; |
1081 | } |
e72dc28c |
1082 | s = SvPV_force(sv,len); |
748a9306 |
1083 | if (strEQ(s,"IGNORE")) { |
1084 | if (i) |
ff68c719 |
1085 | (void)rsignal(i, SIG_IGN); |
748a9306 |
1086 | else |
1087 | *svp = 0; |
1088 | } |
1089 | else if (strEQ(s,"DEFAULT") || !*s) { |
1090 | if (i) |
ff68c719 |
1091 | (void)rsignal(i, SIG_DFL); |
748a9306 |
1092 | else |
1093 | *svp = 0; |
1094 | } |
79072805 |
1095 | else { |
5aabfad6 |
1096 | /* |
1097 | * We should warn if HINT_STRICT_REFS, but without |
1098 | * access to a known hint bit in a known OP, we can't |
1099 | * tell whether HINT_STRICT_REFS is in force or not. |
1100 | */ |
46fc3d4c |
1101 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c |
1102 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 |
1103 | if (i) |
0a8e0eff |
1104 | (void)rsignal(i, &Perl_csighandler); |
748a9306 |
1105 | else |
1106 | *svp = SvREFCNT_inc(sv); |
79072805 |
1107 | } |
1108 | return 0; |
1109 | } |
64ca3a65 |
1110 | #endif /* !PERL_MICRO */ |
79072805 |
1111 | |
1112 | int |
864dbfa3 |
1113 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1114 | { |
3280af22 |
1115 | PL_sub_generation++; |
463ee0b2 |
1116 | return 0; |
1117 | } |
1118 | |
1119 | int |
864dbfa3 |
1120 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1121 | { |
a0d0e21e |
1122 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
1123 | PL_amagic_generation++; |
463ee0b2 |
1124 | |
a0d0e21e |
1125 | return 0; |
1126 | } |
463ee0b2 |
1127 | |
946ec16e |
1128 | int |
864dbfa3 |
1129 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1130 | { |
1131 | HV *hv = (HV*)LvTARG(sv); |
1132 | HE *entry; |
1133 | I32 i = 0; |
1134 | |
1135 | if (hv) { |
1136 | (void) hv_iterinit(hv); |
14befaf4 |
1137 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
6ff81951 |
1138 | i = HvKEYS(hv); |
1139 | else { |
1140 | /*SUPPRESS 560*/ |
155aba94 |
1141 | while ((entry = hv_iternext(hv))) { |
6ff81951 |
1142 | i++; |
1143 | } |
1144 | } |
1145 | } |
1146 | |
1147 | sv_setiv(sv, (IV)i); |
1148 | return 0; |
1149 | } |
1150 | |
1151 | int |
864dbfa3 |
1152 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e |
1153 | { |
1154 | if (LvTARG(sv)) { |
1155 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1156 | } |
1157 | return 0; |
ac27b0f5 |
1158 | } |
946ec16e |
1159 | |
e336de0d |
1160 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1161 | STATIC int |
cea2e8a9 |
1162 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1163 | { |
1164 | dSP; |
463ee0b2 |
1165 | |
924508f0 |
1166 | PUSHMARK(SP); |
1167 | EXTEND(SP, n); |
33c27489 |
1168 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 |
1169 | if (n > 1) { |
93965878 |
1170 | if (mg->mg_ptr) { |
565764a8 |
1171 | if (mg->mg_len >= 0) |
79cb57f6 |
1172 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 |
1173 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1174 | PUSHs((SV*)mg->mg_ptr); |
1175 | } |
14befaf4 |
1176 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 |
1177 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1178 | } |
1179 | } |
1180 | if (n > 2) { |
1181 | PUSHs(val); |
88e89b8a |
1182 | } |
463ee0b2 |
1183 | PUTBACK; |
1184 | |
864dbfa3 |
1185 | return call_method(meth, flags); |
946ec16e |
1186 | } |
1187 | |
76e3520e |
1188 | STATIC int |
cea2e8a9 |
1189 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1190 | { |
1191 | dSP; |
463ee0b2 |
1192 | |
a0d0e21e |
1193 | ENTER; |
1194 | SAVETMPS; |
e788e7d3 |
1195 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1196 | |
33c27489 |
1197 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1198 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1199 | } |
463ee0b2 |
1200 | |
d3acc0f7 |
1201 | POPSTACK; |
a0d0e21e |
1202 | FREETMPS; |
1203 | LEAVE; |
1204 | return 0; |
1205 | } |
463ee0b2 |
1206 | |
a0d0e21e |
1207 | int |
864dbfa3 |
1208 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1209 | { |
1210 | magic_methpack(sv,mg,"FETCH"); |
1211 | if (mg->mg_ptr) |
1212 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1213 | return 0; |
1214 | } |
1215 | |
1216 | int |
864dbfa3 |
1217 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d |
1218 | { |
1219 | dSP; |
a60c0954 |
1220 | ENTER; |
e788e7d3 |
1221 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1222 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1223 | POPSTACK; |
a60c0954 |
1224 | LEAVE; |
463ee0b2 |
1225 | return 0; |
1226 | } |
1227 | |
1228 | int |
864dbfa3 |
1229 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1230 | { |
a0d0e21e |
1231 | return magic_methpack(sv,mg,"DELETE"); |
1232 | } |
463ee0b2 |
1233 | |
93965878 |
1234 | |
1235 | U32 |
864dbfa3 |
1236 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 |
1237 | { |
e336de0d |
1238 | dSP; |
93965878 |
1239 | U32 retval = 0; |
1240 | |
1241 | ENTER; |
1242 | SAVETMPS; |
e788e7d3 |
1243 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1244 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1245 | sv = *PL_stack_sp--; |
a60c0954 |
1246 | retval = (U32) SvIV(sv)-1; |
93965878 |
1247 | } |
d3acc0f7 |
1248 | POPSTACK; |
93965878 |
1249 | FREETMPS; |
1250 | LEAVE; |
1251 | return retval; |
1252 | } |
1253 | |
cea2e8a9 |
1254 | int |
1255 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1256 | { |
1257 | dSP; |
463ee0b2 |
1258 | |
e336de0d |
1259 | ENTER; |
e788e7d3 |
1260 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1261 | PUSHMARK(SP); |
33c27489 |
1262 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1263 | PUTBACK; |
864dbfa3 |
1264 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1265 | POPSTACK; |
a60c0954 |
1266 | LEAVE; |
463ee0b2 |
1267 | return 0; |
1268 | } |
1269 | |
1270 | int |
864dbfa3 |
1271 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1272 | { |
463ee0b2 |
1273 | dSP; |
dff6d3cd |
1274 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1275 | |
1276 | ENTER; |
a0d0e21e |
1277 | SAVETMPS; |
e788e7d3 |
1278 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1279 | PUSHMARK(SP); |
1280 | EXTEND(SP, 2); |
33c27489 |
1281 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1282 | if (SvOK(key)) |
1283 | PUSHs(key); |
1284 | PUTBACK; |
1285 | |
864dbfa3 |
1286 | if (call_method(meth, G_SCALAR)) |
3280af22 |
1287 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1288 | |
d3acc0f7 |
1289 | POPSTACK; |
a0d0e21e |
1290 | FREETMPS; |
1291 | LEAVE; |
79072805 |
1292 | return 0; |
1293 | } |
1294 | |
1295 | int |
864dbfa3 |
1296 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1297 | { |
1298 | return magic_methpack(sv,mg,"EXISTS"); |
ac27b0f5 |
1299 | } |
a0d0e21e |
1300 | |
1301 | int |
864dbfa3 |
1302 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1303 | { |
1304 | OP *o; |
1305 | I32 i; |
1306 | GV* gv; |
1307 | SV** svp; |
2d8e6c8d |
1308 | STRLEN n_a; |
79072805 |
1309 | |
3280af22 |
1310 | gv = PL_DBline; |
79072805 |
1311 | i = SvTRUE(sv); |
188ea221 |
1312 | svp = av_fetch(GvAV(gv), |
2d8e6c8d |
1313 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 |
1314 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 |
1315 | o->op_private = i; |
79072805 |
1316 | return 0; |
1317 | } |
1318 | |
1319 | int |
864dbfa3 |
1320 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1321 | { |
3280af22 |
1322 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 |
1323 | return 0; |
1324 | } |
1325 | |
1326 | int |
864dbfa3 |
1327 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1328 | { |
3280af22 |
1329 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e |
1330 | return 0; |
1331 | } |
1332 | |
1333 | int |
864dbfa3 |
1334 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1335 | { |
1336 | SV* lsv = LvTARG(sv); |
ac27b0f5 |
1337 | |
a0d0e21e |
1338 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 |
1339 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 |
1340 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 |
1341 | I32 i = mg->mg_len; |
7e2040f0 |
1342 | if (DO_UTF8(lsv)) |
a0ed51b3 |
1343 | sv_pos_b2u(lsv, &i); |
1344 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1345 | return 0; |
1346 | } |
1347 | } |
1348 | (void)SvOK_off(sv); |
1349 | return 0; |
1350 | } |
1351 | |
1352 | int |
864dbfa3 |
1353 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1354 | { |
1355 | SV* lsv = LvTARG(sv); |
1356 | SSize_t pos; |
1357 | STRLEN len; |
c00206c8 |
1358 | STRLEN ulen = 0; |
a0d0e21e |
1359 | |
1360 | mg = 0; |
ac27b0f5 |
1361 | |
a0d0e21e |
1362 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 |
1363 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1364 | if (!mg) { |
1365 | if (!SvOK(sv)) |
1366 | return 0; |
14befaf4 |
1367 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1368 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1369 | } |
1370 | else if (!SvOK(sv)) { |
565764a8 |
1371 | mg->mg_len = -1; |
a0d0e21e |
1372 | return 0; |
1373 | } |
1374 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1375 | |
c485e607 |
1376 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1377 | |
7e2040f0 |
1378 | if (DO_UTF8(lsv)) { |
a0ed51b3 |
1379 | ulen = sv_len_utf8(lsv); |
1380 | if (ulen) |
1381 | len = ulen; |
a0ed51b3 |
1382 | } |
1383 | |
a0d0e21e |
1384 | if (pos < 0) { |
1385 | pos += len; |
1386 | if (pos < 0) |
1387 | pos = 0; |
1388 | } |
1389 | else if (pos > len) |
1390 | pos = len; |
a0ed51b3 |
1391 | |
1392 | if (ulen) { |
1393 | I32 p = pos; |
1394 | sv_pos_u2b(lsv, &p, 0); |
1395 | pos = p; |
1396 | } |
1397 | |
565764a8 |
1398 | mg->mg_len = pos; |
71be2cbc |
1399 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1400 | |
79072805 |
1401 | return 0; |
1402 | } |
1403 | |
1404 | int |
864dbfa3 |
1405 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1406 | { |
8646b087 |
1407 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1408 | SvFAKE_off(sv); |
946ec16e |
1409 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1410 | SvFAKE_on(sv); |
1411 | } |
1412 | else |
946ec16e |
1413 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1414 | return 0; |
1415 | } |
1416 | |
1417 | int |
864dbfa3 |
1418 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1419 | { |
1420 | register char *s; |
1421 | GV* gv; |
2d8e6c8d |
1422 | STRLEN n_a; |
79072805 |
1423 | |
1424 | if (!SvOK(sv)) |
1425 | return 0; |
2d8e6c8d |
1426 | s = SvPV(sv, n_a); |
79072805 |
1427 | if (*s == '*' && s[1]) |
1428 | s++; |
85e6fe83 |
1429 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1430 | if (sv == (SV*)gv) |
1431 | return 0; |
1432 | if (GvGP(sv)) |
88e89b8a |
1433 | gp_free((GV*)sv); |
79072805 |
1434 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1435 | return 0; |
1436 | } |
1437 | |
1438 | int |
864dbfa3 |
1439 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1440 | { |
1441 | STRLEN len; |
1442 | SV *lsv = LvTARG(sv); |
1443 | char *tmps = SvPV(lsv,len); |
1444 | I32 offs = LvTARGOFF(sv); |
1445 | I32 rem = LvTARGLEN(sv); |
1446 | |
9aa983d2 |
1447 | if (SvUTF8(lsv)) |
1448 | sv_pos_u2b(lsv, &offs, &rem); |
6ff81951 |
1449 | if (offs > len) |
1450 | offs = len; |
1451 | if (rem + offs > len) |
1452 | rem = len - offs; |
1453 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
9aa983d2 |
1454 | if (SvUTF8(lsv)) |
2ef4b674 |
1455 | SvUTF8_on(sv); |
6ff81951 |
1456 | return 0; |
1457 | } |
1458 | |
1459 | int |
864dbfa3 |
1460 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1461 | { |
9aa983d2 |
1462 | STRLEN len; |
1463 | char *tmps = SvPV(sv, len); |
1464 | SV *lsv = LvTARG(sv); |
1465 | I32 lvoff = LvTARGOFF(sv); |
1466 | I32 lvlen = LvTARGLEN(sv); |
075a4a2b |
1467 | |
1aa99e6b |
1468 | if (DO_UTF8(sv)) { |
9aa983d2 |
1469 | sv_utf8_upgrade(lsv); |
1470 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
1471 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1472 | SvUTF8_on(lsv); |
1473 | } |
1474 | else if (SvUTF8(lsv)) { |
1475 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 |
1476 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 |
1477 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1478 | Safefree(tmps); |
1aa99e6b |
1479 | } |
1480 | else |
9aa983d2 |
1481 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b |
1482 | |
79072805 |
1483 | return 0; |
1484 | } |
1485 | |
1486 | int |
864dbfa3 |
1487 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1488 | { |
565764a8 |
1489 | TAINT_IF((mg->mg_len & 1) || |
155aba94 |
1490 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 |
1491 | return 0; |
1492 | } |
1493 | |
1494 | int |
864dbfa3 |
1495 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1496 | { |
3280af22 |
1497 | if (PL_localizing) { |
1498 | if (PL_localizing == 1) |
565764a8 |
1499 | mg->mg_len <<= 1; |
748a9306 |
1500 | else |
565764a8 |
1501 | mg->mg_len >>= 1; |
a0d0e21e |
1502 | } |
3280af22 |
1503 | else if (PL_tainted) |
565764a8 |
1504 | mg->mg_len |= 1; |
748a9306 |
1505 | else |
565764a8 |
1506 | mg->mg_len &= ~1; |
463ee0b2 |
1507 | return 0; |
1508 | } |
1509 | |
1510 | int |
864dbfa3 |
1511 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1512 | { |
1513 | SV *lsv = LvTARG(sv); |
6ff81951 |
1514 | |
1515 | if (!lsv) { |
155aba94 |
1516 | (void)SvOK_off(sv); |
6ff81951 |
1517 | return 0; |
1518 | } |
6ff81951 |
1519 | |
81e118e0 |
1520 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 |
1521 | return 0; |
1522 | } |
1523 | |
1524 | int |
864dbfa3 |
1525 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1526 | { |
1527 | do_vecset(sv); /* XXX slurp this routine */ |
1528 | return 0; |
1529 | } |
1530 | |
1531 | int |
864dbfa3 |
1532 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc |
1533 | { |
71be2cbc |
1534 | SV *targ = Nullsv; |
5f05dabc |
1535 | if (LvTARGLEN(sv)) { |
68dc0745 |
1536 | if (mg->mg_obj) { |
74e13ce4 |
1537 | SV *ahv = LvTARG(sv); |
1538 | if (SvTYPE(ahv) == SVt_PVHV) { |
1539 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1540 | if (he) |
1541 | targ = HeVAL(he); |
1542 | } |
1543 | else { |
1544 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); |
1545 | if (svp) |
1546 | targ = *svp; |
1547 | } |
68dc0745 |
1548 | } |
1549 | else { |
3c78fafa |
1550 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1551 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1552 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1553 | } |
3280af22 |
1554 | if (targ && targ != &PL_sv_undef) { |
68dc0745 |
1555 | /* somebody else defined it for us */ |
1556 | SvREFCNT_dec(LvTARG(sv)); |
1557 | LvTARG(sv) = SvREFCNT_inc(targ); |
1558 | LvTARGLEN(sv) = 0; |
1559 | SvREFCNT_dec(mg->mg_obj); |
1560 | mg->mg_obj = Nullsv; |
1561 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1562 | } |
5f05dabc |
1563 | } |
71be2cbc |
1564 | else |
1565 | targ = LvTARG(sv); |
3280af22 |
1566 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
1567 | return 0; |
1568 | } |
1569 | |
1570 | int |
864dbfa3 |
1571 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc |
1572 | { |
1573 | if (LvTARGLEN(sv)) |
68dc0745 |
1574 | vivify_defelem(sv); |
1575 | if (LvTARG(sv)) { |
5f05dabc |
1576 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1577 | SvSETMAGIC(LvTARG(sv)); |
1578 | } |
5f05dabc |
1579 | return 0; |
1580 | } |
1581 | |
71be2cbc |
1582 | void |
864dbfa3 |
1583 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc |
1584 | { |
74e13ce4 |
1585 | MAGIC *mg; |
1586 | SV *value = Nullsv; |
71be2cbc |
1587 | |
14befaf4 |
1588 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc |
1589 | return; |
68dc0745 |
1590 | if (mg->mg_obj) { |
74e13ce4 |
1591 | SV *ahv = LvTARG(sv); |
2d8e6c8d |
1592 | STRLEN n_a; |
74e13ce4 |
1593 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 |
1594 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1595 | if (he) |
1596 | value = HeVAL(he); |
1597 | } |
1598 | else { |
af7f9c15 |
1599 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1600 | if (svp) |
1601 | value = *svp; |
1602 | } |
3280af22 |
1603 | if (!value || value == &PL_sv_undef) |
cea2e8a9 |
1604 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc |
1605 | } |
68dc0745 |
1606 | else { |
1607 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1608 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1609 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1610 | else { |
1611 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
1612 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 |
1613 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 |
1614 | } |
1615 | } |
3e3baf6d |
1616 | (void)SvREFCNT_inc(value); |
68dc0745 |
1617 | SvREFCNT_dec(LvTARG(sv)); |
1618 | LvTARG(sv) = value; |
71be2cbc |
1619 | LvTARGLEN(sv) = 0; |
68dc0745 |
1620 | SvREFCNT_dec(mg->mg_obj); |
1621 | mg->mg_obj = Nullsv; |
1622 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1623 | } |
1624 | |
1625 | int |
864dbfa3 |
1626 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 |
1627 | { |
1628 | AV *av = (AV*)mg->mg_obj; |
1629 | SV **svp = AvARRAY(av); |
1630 | I32 i = AvFILLp(av); |
1631 | while (i >= 0) { |
1632 | if (svp[i] && svp[i] != &PL_sv_undef) { |
1633 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 |
1634 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 |
1635 | /* XXX Should we check that it hasn't changed? */ |
1636 | SvRV(svp[i]) = 0; |
155aba94 |
1637 | (void)SvOK_off(svp[i]); |
810b8aa5 |
1638 | SvWEAKREF_off(svp[i]); |
1639 | svp[i] = &PL_sv_undef; |
1640 | } |
1641 | i--; |
1642 | } |
1643 | return 0; |
1644 | } |
1645 | |
1646 | int |
864dbfa3 |
1647 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
1648 | { |
565764a8 |
1649 | mg->mg_len = -1; |
c6496cc7 |
1650 | SvSCREAM_off(sv); |
93a17b20 |
1651 | return 0; |
1652 | } |
1653 | |
1654 | int |
864dbfa3 |
1655 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1656 | { |
14befaf4 |
1657 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 |
1658 | SvVALID_off(sv); |
1659 | return 0; |
1660 | } |
1661 | |
1662 | int |
864dbfa3 |
1663 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff |
1664 | { |
14befaf4 |
1665 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff |
1666 | SvCOMPILED_off(sv); |
1667 | return 0; |
1668 | } |
1669 | |
1670 | int |
864dbfa3 |
1671 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1672 | { |
1673 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1674 | |
1675 | if (uf && uf->uf_set) |
24f81a43 |
1676 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 |
1677 | return 0; |
1678 | } |
1679 | |
c277df42 |
1680 | int |
864dbfa3 |
1681 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 |
1682 | { |
1683 | regexp *re = (regexp *)mg->mg_obj; |
1684 | ReREFCNT_dec(re); |
1685 | return 0; |
1686 | } |
1687 | |
7a4c00b4 |
1688 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1689 | int |
864dbfa3 |
1690 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 |
1691 | { |
1692 | /* |
838b5b74 |
1693 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 |
1694 | * and vanished with a faint plop. |
1695 | */ |
7a4c00b4 |
1696 | if (mg->mg_ptr) { |
1697 | Safefree(mg->mg_ptr); |
1698 | mg->mg_ptr = NULL; |
565764a8 |
1699 | mg->mg_len = -1; |
7a4c00b4 |
1700 | } |
bbce6d69 |
1701 | return 0; |
1702 | } |
7a4c00b4 |
1703 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1704 | |
1705 | int |
864dbfa3 |
1706 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1707 | { |
1708 | register char *s; |
1709 | I32 i; |
8990e307 |
1710 | STRLEN len; |
79072805 |
1711 | switch (*mg->mg_ptr) { |
748a9306 |
1712 | case '\001': /* ^A */ |
3280af22 |
1713 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
1714 | break; |
49460fe6 |
1715 | case '\003': /* ^C */ |
1716 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1717 | break; |
1718 | |
79072805 |
1719 | case '\004': /* ^D */ |
aea4f609 |
1720 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 |
1721 | DEBUG_x(dump_all()); |
1722 | break; |
28f23441 |
1723 | case '\005': /* ^E */ |
cd39f2b6 |
1724 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 |
1725 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 |
1726 | #else |
cd39f2b6 |
1727 | # ifdef VMS |
1728 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf |
1729 | # else |
cd39f2b6 |
1730 | # ifdef WIN32 |
1731 | SetLastError( SvIV(sv) ); |
1732 | # else |
1733 | # ifndef OS2 |
f86702cc |
1734 | /* will anyone ever use this? */ |
1735 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
cd39f2b6 |
1736 | # endif |
048c1ddf |
1737 | # endif |
1738 | # endif |
22fae026 |
1739 | #endif |
28f23441 |
1740 | break; |
79072805 |
1741 | case '\006': /* ^F */ |
3280af22 |
1742 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1743 | break; |
a0d0e21e |
1744 | case '\010': /* ^H */ |
3280af22 |
1745 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
1746 | break; |
9d116dd7 |
1747 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
1748 | if (PL_inplace) |
1749 | Safefree(PL_inplace); |
79072805 |
1750 | if (SvOK(sv)) |
2d8e6c8d |
1751 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 |
1752 | else |
3280af22 |
1753 | PL_inplace = Nullch; |
79072805 |
1754 | break; |
28f23441 |
1755 | case '\017': /* ^O */ |
ac27b0f5 |
1756 | if (*(mg->mg_ptr+1) == '\0') { |
1757 | if (PL_osname) |
1758 | Safefree(PL_osname); |
1759 | if (SvOK(sv)) |
1760 | PL_osname = savepv(SvPV(sv,len)); |
1761 | else |
1762 | PL_osname = Nullch; |
1763 | } |
1764 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
1765 | if (!PL_compiling.cop_io) |
1766 | PL_compiling.cop_io = newSVsv(sv); |
1767 | else |
1768 | sv_setsv(PL_compiling.cop_io,sv); |
1769 | } |
28f23441 |
1770 | break; |
79072805 |
1771 | case '\020': /* ^P */ |
3280af22 |
1772 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e |
1773 | if (PL_perldb && !PL_DBsingle) |
1774 | init_debugger(); |
79072805 |
1775 | break; |
1776 | case '\024': /* ^T */ |
88e89b8a |
1777 | #ifdef BIG_TIME |
6b88bc9c |
1778 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
1779 | #else |
3280af22 |
1780 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1781 | #endif |
79072805 |
1782 | break; |
46487f74 |
1783 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 |
1784 | if (*(mg->mg_ptr+1) == '\0') { |
1785 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1786 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
ac27b0f5 |
1787 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 |
1788 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 |
1789 | } |
599cee73 |
1790 | } |
6a818117 |
1791 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 |
1792 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e |
1793 | if (!SvPOK(sv) && PL_localizing) { |
1794 | sv_setpvn(sv, WARN_NONEstring, WARNsize); |
d3a7d8c7 |
1795 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e |
1796 | break; |
1797 | } |
f4fc7782 |
1798 | { |
b5477537 |
1799 | STRLEN len, i; |
d3a7d8c7 |
1800 | int accumulate = 0 ; |
f4fc7782 |
1801 | int any_fatals = 0 ; |
d3a7d8c7 |
1802 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 |
1803 | for (i = 0 ; i < len ; ++i) { |
1804 | accumulate |= ptr[i] ; |
1805 | any_fatals |= (ptr[i] & 0xAA) ; |
1806 | } |
d3a7d8c7 |
1807 | if (!accumulate) |
1808 | PL_compiling.cop_warnings = pWARN_NONE; |
f4fc7782 |
1809 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1810 | PL_compiling.cop_warnings = pWARN_ALL; |
1811 | PL_dowarn |= G_WARN_ONCE ; |
1812 | } |
d3a7d8c7 |
1813 | else { |
1814 | if (specialWARN(PL_compiling.cop_warnings)) |
1815 | PL_compiling.cop_warnings = newSVsv(sv) ; |
1816 | else |
1817 | sv_setsv(PL_compiling.cop_warnings, sv); |
1818 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) |
1819 | PL_dowarn |= G_WARN_ONCE ; |
1820 | } |
f4fc7782 |
1821 | |
d3a7d8c7 |
1822 | } |
4438c4b7 |
1823 | } |
971a9dd3 |
1824 | } |
46487f74 |
1825 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1826 | PL_widesyscalls = SvTRUE(sv); |
79072805 |
1827 | break; |
1828 | case '.': |
3280af22 |
1829 | if (PL_localizing) { |
1830 | if (PL_localizing == 1) |
7766f137 |
1831 | SAVESPTR(PL_last_in_gv); |
748a9306 |
1832 | } |
3280af22 |
1833 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1834 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); |
79072805 |
1835 | break; |
1836 | case '^': |
3280af22 |
1837 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1838 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1839 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1840 | break; |
1841 | case '~': |
3280af22 |
1842 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1843 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1844 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1845 | break; |
1846 | case '=': |
3280af22 |
1847 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1848 | break; |
1849 | case '-': |
3280af22 |
1850 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1851 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1852 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
1853 | break; |
1854 | case '%': |
3280af22 |
1855 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1856 | break; |
1857 | case '|': |
4b65379b |
1858 | { |
3280af22 |
1859 | IO *io = GvIOp(PL_defoutgv); |
4b65379b |
1860 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1861 | IoFLAGS(io) &= ~IOf_FLUSH; |
1862 | else { |
1863 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1864 | PerlIO *ofp = IoOFP(io); |
1865 | if (ofp) |
1866 | (void)PerlIO_flush(ofp); |
1867 | IoFLAGS(io) |= IOf_FLUSH; |
1868 | } |
1869 | } |
79072805 |
1870 | } |
1871 | break; |
1872 | case '*': |
463ee0b2 |
1873 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 |
1874 | PL_multiline = (i != 0); |
79072805 |
1875 | break; |
1876 | case '/': |
3280af22 |
1877 | SvREFCNT_dec(PL_nrs); |
1878 | PL_nrs = newSVsv(sv); |
1879 | SvREFCNT_dec(PL_rs); |
1880 | PL_rs = SvREFCNT_inc(PL_nrs); |
79072805 |
1881 | break; |
1882 | case '\\': |
7889fe52 |
1883 | if (PL_ors_sv) |
1884 | SvREFCNT_dec(PL_ors_sv); |
009c130f |
1885 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 |
1886 | PL_ors_sv = newSVsv(sv); |
009c130f |
1887 | } |
e3c19b7b |
1888 | else { |
7889fe52 |
1889 | PL_ors_sv = Nullsv; |
e3c19b7b |
1890 | } |
79072805 |
1891 | break; |
1892 | case ',': |
7889fe52 |
1893 | if (PL_ofs_sv) |
1894 | SvREFCNT_dec(PL_ofs_sv); |
1895 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
1896 | PL_ofs_sv = newSVsv(sv); |
1897 | } |
1898 | else { |
1899 | PL_ofs_sv = Nullsv; |
1900 | } |
79072805 |
1901 | break; |
1902 | case '#': |
3280af22 |
1903 | if (PL_ofmt) |
1904 | Safefree(PL_ofmt); |
2d8e6c8d |
1905 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 |
1906 | break; |
1907 | case '[': |
3280af22 |
1908 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1909 | break; |
1910 | case '?': |
ff0cee69 |
1911 | #ifdef COMPLEX_STATUS |
6b88bc9c |
1912 | if (PL_localizing == 2) { |
1913 | PL_statusvalue = LvTARGOFF(sv); |
1914 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
1915 | } |
1916 | else |
1917 | #endif |
1918 | #ifdef VMSISH_STATUS |
1919 | if (VMSISH_STATUS) |
1920 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1921 | else |
1922 | #endif |
1923 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1924 | break; |
1925 | case '!': |
78987ded |
1926 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc |
1927 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1928 | break; |
1929 | case '<': |
3280af22 |
1930 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1931 | if (PL_delaymagic) { |
1932 | PL_delaymagic |= DM_RUID; |
79072805 |
1933 | break; /* don't do magic till later */ |
1934 | } |
1935 | #ifdef HAS_SETRUID |
b28d0864 |
1936 | (void)setruid((Uid_t)PL_uid); |
79072805 |
1937 | #else |
1938 | #ifdef HAS_SETREUID |
3280af22 |
1939 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
1940 | #else |
85e6fe83 |
1941 | #ifdef HAS_SETRESUID |
b28d0864 |
1942 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1943 | #else |
b28d0864 |
1944 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1945 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
1946 | else { |
d8eceb89 |
1947 | PL_uid = PerlProc_getuid(); |
cea2e8a9 |
1948 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e |
1949 | } |
79072805 |
1950 | #endif |
1951 | #endif |
85e6fe83 |
1952 | #endif |
d8eceb89 |
1953 | PL_uid = PerlProc_getuid(); |
3280af22 |
1954 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1955 | break; |
1956 | case '>': |
3280af22 |
1957 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1958 | if (PL_delaymagic) { |
1959 | PL_delaymagic |= DM_EUID; |
79072805 |
1960 | break; /* don't do magic till later */ |
1961 | } |
1962 | #ifdef HAS_SETEUID |
3280af22 |
1963 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
1964 | #else |
1965 | #ifdef HAS_SETREUID |
b28d0864 |
1966 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
1967 | #else |
1968 | #ifdef HAS_SETRESUID |
6b88bc9c |
1969 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
1970 | #else |
b28d0864 |
1971 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1972 | PerlProc_setuid(PL_euid); |
a0d0e21e |
1973 | else { |
e8ee3774 |
1974 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 |
1975 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e |
1976 | } |
79072805 |
1977 | #endif |
1978 | #endif |
85e6fe83 |
1979 | #endif |
d8eceb89 |
1980 | PL_euid = PerlProc_geteuid(); |
3280af22 |
1981 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1982 | break; |
1983 | case '(': |
3280af22 |
1984 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1985 | if (PL_delaymagic) { |
1986 | PL_delaymagic |= DM_RGID; |
79072805 |
1987 | break; /* don't do magic till later */ |
1988 | } |
1989 | #ifdef HAS_SETRGID |
b28d0864 |
1990 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
1991 | #else |
1992 | #ifdef HAS_SETREGID |
3280af22 |
1993 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
1994 | #else |
1995 | #ifdef HAS_SETRESGID |
b28d0864 |
1996 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1997 | #else |
b28d0864 |
1998 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1999 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
2000 | else { |
d8eceb89 |
2001 | PL_gid = PerlProc_getgid(); |
cea2e8a9 |
2002 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 |
2003 | } |
79072805 |
2004 | #endif |
2005 | #endif |
85e6fe83 |
2006 | #endif |
d8eceb89 |
2007 | PL_gid = PerlProc_getgid(); |
3280af22 |
2008 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2009 | break; |
2010 | case ')': |
5cd24f17 |
2011 | #ifdef HAS_SETGROUPS |
2012 | { |
2d8e6c8d |
2013 | char *p = SvPV(sv, len); |
5cd24f17 |
2014 | Groups_t gary[NGROUPS]; |
2015 | |
5cd24f17 |
2016 | while (isSPACE(*p)) |
2017 | ++p; |
2d4389e4 |
2018 | PL_egid = Atol(p); |
5cd24f17 |
2019 | for (i = 0; i < NGROUPS; ++i) { |
2020 | while (*p && !isSPACE(*p)) |
2021 | ++p; |
2022 | while (isSPACE(*p)) |
2023 | ++p; |
2024 | if (!*p) |
2025 | break; |
2d4389e4 |
2026 | gary[i] = Atol(p); |
5cd24f17 |
2027 | } |
8cc95fdb |
2028 | if (i) |
2029 | (void)setgroups(i, gary); |
5cd24f17 |
2030 | } |
2031 | #else /* HAS_SETGROUPS */ |
b28d0864 |
2032 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
2033 | #endif /* HAS_SETGROUPS */ |
3280af22 |
2034 | if (PL_delaymagic) { |
2035 | PL_delaymagic |= DM_EGID; |
79072805 |
2036 | break; /* don't do magic till later */ |
2037 | } |
2038 | #ifdef HAS_SETEGID |
3280af22 |
2039 | (void)setegid((Gid_t)PL_egid); |
79072805 |
2040 | #else |
2041 | #ifdef HAS_SETREGID |
b28d0864 |
2042 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
2043 | #else |
2044 | #ifdef HAS_SETRESGID |
b28d0864 |
2045 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
2046 | #else |
b28d0864 |
2047 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2048 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
2049 | else { |
d8eceb89 |
2050 | PL_egid = PerlProc_getegid(); |
cea2e8a9 |
2051 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 |
2052 | } |
79072805 |
2053 | #endif |
2054 | #endif |
85e6fe83 |
2055 | #endif |
d8eceb89 |
2056 | PL_egid = PerlProc_getegid(); |
3280af22 |
2057 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2058 | break; |
2059 | case ':': |
2d8e6c8d |
2060 | PL_chopset = SvPV_force(sv,len); |
79072805 |
2061 | break; |
cd39f2b6 |
2062 | #ifndef MACOS_TRADITIONAL |
79072805 |
2063 | case '0': |
4bc88a62 |
2064 | #ifdef HAS_SETPROCTITLE |
2065 | /* The BSDs don't show the argv[] in ps(1) output, they |
2066 | * show a string from the process struct and provide |
2067 | * the setproctitle() routine to manipulate that. */ |
2068 | { |
2069 | s = SvPV(sv, len); |
9aad2c0e |
2070 | # if __FreeBSD_version >= 410001 |
2071 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 |
2072 | * but not the "(perl) suffix from the ps(1) |
2073 | * output, because that's what ps(1) shows if the |
2074 | * argv[] is modified. */ |
2075 | setproctitle("-%s", s, len + 1); |
9aad2c0e |
2076 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 |
2077 | /* This doesn't really work if you assume that |
2078 | * $0 = 'foobar'; will wipe out 'perl' from the $0 |
2079 | * because in ps(1) output the result will be like |
2080 | * sprintf("perl: %s (perl)", s) |
2081 | * I guess this is a security feature: |
2082 | * one (a user process) cannot get rid of the original name. |
2083 | * --jhi */ |
2084 | setproctitle("%s", s); |
2085 | # endif |
2086 | } |
2087 | #endif |
3280af22 |
2088 | if (!PL_origalen) { |
2089 | s = PL_origargv[0]; |
79072805 |
2090 | s += strlen(s); |
2091 | /* See if all the arguments are contiguous in memory */ |
3280af22 |
2092 | for (i = 1; i < PL_origargc; i++) { |
2093 | if (PL_origargv[i] == s + 1 |
fb73857a |
2094 | #ifdef OS2 |
6b88bc9c |
2095 | || PL_origargv[i] == s + 2 |
ac27b0f5 |
2096 | #endif |
fb73857a |
2097 | ) |
379c4362 |
2098 | { |
2099 | ++s; |
2100 | s += strlen(s); /* this one is ok too */ |
2101 | } |
fb73857a |
2102 | else |
2103 | break; |
79072805 |
2104 | } |
bbce6d69 |
2105 | /* can grab env area too? */ |
3280af22 |
2106 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a |
2107 | #ifdef OS2 |
6b88bc9c |
2108 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
ac27b0f5 |
2109 | #endif |
fb73857a |
2110 | )) { |
66b1d557 |
2111 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
2112 | /* force copy of environment */ |
3280af22 |
2113 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 |
2114 | if (PL_origenviron[i] == s + 1) { |
2115 | ++s; |
2116 | s += strlen(s); |
2117 | } |
fb73857a |
2118 | else |
2119 | break; |
79072805 |
2120 | } |
3280af22 |
2121 | PL_origalen = s - PL_origargv[0]; |
79072805 |
2122 | } |
a0d0e21e |
2123 | s = SvPV_force(sv,len); |
8990e307 |
2124 | i = len; |
3280af22 |
2125 | if (i >= PL_origalen) { |
2126 | i = PL_origalen; |
fb73857a |
2127 | /* don't allow system to limit $0 seen by script */ |
2128 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
3280af22 |
2129 | Copy(s, PL_origargv[0], i, char); |
2130 | s = PL_origargv[0]+i; |
fb73857a |
2131 | *s = '\0'; |
79072805 |
2132 | } |
2133 | else { |
3280af22 |
2134 | Copy(s, PL_origargv[0], i, char); |
2135 | s = PL_origargv[0]+i; |
79072805 |
2136 | *s++ = '\0'; |
3280af22 |
2137 | while (++i < PL_origalen) |
8990e307 |
2138 | *s++ = ' '; |
3280af22 |
2139 | s = PL_origargv[0]+i; |
2140 | for (i = 1; i < PL_origargc; i++) |
2141 | PL_origargv[i] = Nullch; |
79072805 |
2142 | } |
2143 | break; |
cd39f2b6 |
2144 | #endif |
a863c7d1 |
2145 | #ifdef USE_THREADS |
2146 | case '@': |
38a03e6e |
2147 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
2148 | break; |
2149 | #endif /* USE_THREADS */ |
79072805 |
2150 | } |
2151 | return 0; |
2152 | } |
2153 | |
f93b4edd |
2154 | #ifdef USE_THREADS |
2155 | int |
864dbfa3 |
2156 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd |
2157 | { |
b900a521 |
2158 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2159 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", |
2160 | PTR2UV(thr), PTR2UV(sv));) |
f93b4edd |
2161 | if (MgOWNER(mg)) |
cea2e8a9 |
2162 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd |
2163 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2164 | COND_DESTROY(MgCONDP(mg)); |
2165 | return 0; |
2166 | } |
2167 | #endif /* USE_THREADS */ |
2168 | |
79072805 |
2169 | I32 |
864dbfa3 |
2170 | Perl_whichsig(pTHX_ char *sig) |
79072805 |
2171 | { |
2172 | register char **sigv; |
2173 | |
22c35a8c |
2174 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 |
2175 | if (strEQ(sig,*sigv)) |
22c35a8c |
2176 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 |
2177 | #ifdef SIGCLD |
2178 | if (strEQ(sig,"CHLD")) |
2179 | return SIGCLD; |
2180 | #endif |
2181 | #ifdef SIGCHLD |
2182 | if (strEQ(sig,"CLD")) |
2183 | return SIGCHLD; |
2184 | #endif |
2185 | return 0; |
2186 | } |
2187 | |
84902520 |
2188 | static SV* sig_sv; |
2189 | |
ecfc5424 |
2190 | Signal_t |
cea2e8a9 |
2191 | Perl_sighandler(int sig) |
79072805 |
2192 | { |
71d280e3 |
2193 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2194 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ |
2195 | #else |
cea2e8a9 |
2196 | dTHX; |
71d280e3 |
2197 | #endif |
79072805 |
2198 | dSP; |
00d579c5 |
2199 | GV *gv = Nullgv; |
a0d0e21e |
2200 | HV *st; |
b7953727 |
2201 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 |
2202 | CV *cv = Nullcv; |
533c011a |
2203 | OP *myop = PL_op; |
84902520 |
2204 | U32 flags = 0; |
155aba94 |
2205 | I32 o_save_i = PL_savestack_ix; |
3280af22 |
2206 | XPV *tXpv = PL_Xpv; |
71d280e3 |
2207 | |
2208 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2209 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ |
2210 | #endif |
ac27b0f5 |
2211 | |
3280af22 |
2212 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2213 | flags |= 1; |
3280af22 |
2214 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2215 | flags |= 4; |
3280af22 |
2216 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 |
2217 | flags |= 8; |
3280af22 |
2218 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2219 | flags |= 16; |
2220 | |
22c35a8c |
2221 | if (!PL_psig_ptr[sig]) |
cea2e8a9 |
2222 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c |
2223 | PL_sig_name[sig]); |
ff0cee69 |
2224 | |
84902520 |
2225 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2226 | infinity, so we fix 4 (in fact 5): */ |
2227 | if (flags & 1) { |
3280af22 |
2228 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2229 | o_save_i = PL_savestack_ix; |
c76ac1ee |
2230 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 |
2231 | } |
ac27b0f5 |
2232 | if (flags & 4) |
3280af22 |
2233 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2234 | if (flags & 8) { |
3280af22 |
2235 | PL_retstack_ix++; |
2236 | PL_retstack[PL_retstack_ix] = NULL; |
84902520 |
2237 | } |
2238 | if (flags & 16) |
3280af22 |
2239 | PL_scopestack_ix += 1; |
84902520 |
2240 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 |
2241 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 |
2242 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c |
2243 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 |
2244 | |
a0d0e21e |
2245 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2246 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 |
2247 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c |
2248 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 |
2249 | : ((cv && CvGV(cv)) |
2250 | ? GvENAME(CvGV(cv)) |
2251 | : "__ANON__"))); |
2252 | goto cleanup; |
79072805 |
2253 | } |
2254 | |
22c35a8c |
2255 | if(PL_psig_name[sig]) { |
2256 | sv = SvREFCNT_inc(PL_psig_name[sig]); |
84902520 |
2257 | flags |= 64; |
2258 | sig_sv = sv; |
2259 | } else { |
ff0cee69 |
2260 | sv = sv_newmortal(); |
22c35a8c |
2261 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a |
2262 | } |
e336de0d |
2263 | |
e788e7d3 |
2264 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2265 | PUSHMARK(SP); |
79072805 |
2266 | PUSHs(sv); |
79072805 |
2267 | PUTBACK; |
a0d0e21e |
2268 | |
1b266415 |
2269 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 |
2270 | |
d3acc0f7 |
2271 | POPSTACK; |
1b266415 |
2272 | if (SvTRUE(ERRSV)) { |
1d615522 |
2273 | #ifndef PERL_MICRO |
983dbef6 |
2274 | #ifdef HAS_SIGPROCMASK |
1b266415 |
2275 | /* Handler "died", for example to get out of a restart-able read(). |
2276 | * Before we re-do that on its behalf re-enable the signal which was |
2277 | * blocked by the system when we entered. |
2278 | */ |
2279 | sigset_t set; |
2280 | sigemptyset(&set); |
2281 | sigaddset(&set,sig); |
2282 | sigprocmask(SIG_UNBLOCK, &set, NULL); |
2283 | #else |
2284 | /* Not clear if this will work */ |
2285 | (void)rsignal(sig, SIG_IGN); |
0a8e0eff |
2286 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 |
2287 | #endif |
1d615522 |
2288 | #endif /* !PERL_MICRO */ |
1b266415 |
2289 | Perl_die(aTHX_ Nullch); |
2290 | } |
00d579c5 |
2291 | cleanup: |
84902520 |
2292 | if (flags & 1) |
3280af22 |
2293 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 |
2294 | if (flags & 4) |
3280af22 |
2295 | PL_markstack_ptr--; |
ac27b0f5 |
2296 | if (flags & 8) |
3280af22 |
2297 | PL_retstack_ix--; |
84902520 |
2298 | if (flags & 16) |
3280af22 |
2299 | PL_scopestack_ix -= 1; |
84902520 |
2300 | if (flags & 64) |
2301 | SvREFCNT_dec(sv); |
533c011a |
2302 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 |
2303 | |
3280af22 |
2304 | PL_Sv = tSv; /* Restore global temporaries. */ |
2305 | PL_Xpv = tXpv; |
79072805 |
2306 | return; |
2307 | } |
4e35701f |
2308 | |
2309 | |
51371543 |
2310 | #ifdef PERL_OBJECT |
51371543 |
2311 | #include "XSUB.h" |
2312 | #endif |
2313 | |
2314 | static void |
2315 | restore_magic(pTHXo_ void *p) |
2316 | { |
48944bdf |
2317 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 |
2318 | SV* sv = mgs->mgs_sv; |
2319 | |
2320 | if (!sv) |
2321 | return; |
2322 | |
2323 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
2324 | { |
2325 | if (mgs->mgs_flags) |
2326 | SvFLAGS(sv) |= mgs->mgs_flags; |
2327 | else |
2328 | mg_magical(sv); |
2329 | if (SvGMAGICAL(sv)) |
2330 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
2331 | } |
2332 | |
2333 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ |
2334 | |
2335 | /* If we're still on top of the stack, pop us off. (That condition |
2336 | * will be satisfied if restore_magic was called explicitly, but *not* |
2337 | * if it's being called via leave_scope.) |
2338 | * The reason for doing this is that otherwise, things like sv_2cv() |
2339 | * may leave alloc gunk on the savestack, and some code |
2340 | * (e.g. sighandler) doesn't expect that... |
2341 | */ |
2342 | if (PL_savestack_ix == mgs->mgs_ss_ix) |
2343 | { |
2344 | I32 popval = SSPOPINT; |
c76ac1ee |
2345 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 |
2346 | PL_savestack_ix -= 2; |
2347 | popval = SSPOPINT; |
2348 | assert(popval == SAVEt_ALLOC); |
2349 | popval = SSPOPINT; |
2350 | PL_savestack_ix -= popval; |
2351 | } |
2352 | |
2353 | } |
2354 | |
2355 | static void |
2356 | unwind_handler_stack(pTHXo_ void *p) |
2357 | { |
51371543 |
2358 | U32 flags = *(U32*)p; |
2359 | |
2360 | if (flags & 1) |
2361 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
2362 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2363 | if (flags & 64) |
2364 | SvREFCNT_dec(sig_sv); |
2365 | } |