Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
eb1102fc |
3 | * Copyright (c) 1991-2002, 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 | |
ccfc67b7 |
15 | /* |
16 | =head1 Magical Functions |
17 | */ |
18 | |
79072805 |
19 | #include "EXTERN.h" |
864dbfa3 |
20 | #define PERL_IN_MG_C |
79072805 |
21 | #include "perl.h" |
22 | |
5cd24f17 |
23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 |
26 | # endif |
b7953727 |
27 | # ifdef I_GRP |
28 | # include <grp.h> |
29 | # endif |
188ea221 |
30 | #endif |
31 | |
23ada85b |
32 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 |
33 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b |
34 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
35 | #endif |
2e34cc90 |
36 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 |
37 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 |
38 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
39 | #endif |
85b332e2 |
40 | |
acfe0abc |
41 | static void restore_magic(pTHX_ void *p); |
42 | static void unwind_handler_stack(pTHX_ void *p); |
51371543 |
43 | |
c07a80fd |
44 | /* |
45 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
46 | */ |
47 | |
48 | struct magic_state { |
49 | SV* mgs_sv; |
50 | U32 mgs_flags; |
455ece5e |
51 | I32 mgs_ss_ix; |
c07a80fd |
52 | }; |
455ece5e |
53 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e |
54 | |
55 | STATIC void |
8fb26106 |
56 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd |
57 | { |
455ece5e |
58 | MGS* mgs; |
c07a80fd |
59 | assert(SvMAGICAL(sv)); |
765f542d |
60 | #ifdef PERL_COPY_ON_WRITE |
61 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ |
62 | if (SvIsCOW(sv)) |
63 | sv_force_normal(sv); |
64 | #endif |
c07a80fd |
65 | |
685f876f |
66 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e |
67 | |
68 | mgs = SSPTR(mgs_ix, MGS*); |
c07a80fd |
69 | mgs->mgs_sv = sv; |
70 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
455ece5e |
71 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd |
72 | |
73 | SvMAGICAL_off(sv); |
74 | SvREADONLY_off(sv); |
06759ea0 |
75 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
76 | } |
77 | |
954c1994 |
78 | /* |
79 | =for apidoc mg_magical |
80 | |
81 | Turns on the magical status of an SV. See C<sv_magic>. |
82 | |
83 | =cut |
84 | */ |
85 | |
8990e307 |
86 | void |
864dbfa3 |
87 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 |
88 | { |
89 | MAGIC* mg; |
90 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
91 | MGVTBL* vtbl = mg->mg_virtual; |
92 | if (vtbl) { |
2b260de0 |
93 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
94 | SvGMAGICAL_on(sv); |
95 | if (vtbl->svt_set) |
96 | SvSMAGICAL_on(sv); |
2b260de0 |
97 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 |
98 | SvRMAGICAL_on(sv); |
99 | } |
100 | } |
101 | } |
102 | |
954c1994 |
103 | /* |
104 | =for apidoc mg_get |
105 | |
106 | Do magic after a value is retrieved from the SV. See C<sv_magic>. |
107 | |
108 | =cut |
109 | */ |
110 | |
79072805 |
111 | int |
864dbfa3 |
112 | Perl_mg_get(pTHX_ SV *sv) |
79072805 |
113 | { |
ff76feab |
114 | int new = 0; |
115 | MAGIC *newmg, *head, *cur, *mg; |
116 | I32 mgs_ix = SSNEW(sizeof(MGS)); |
463ee0b2 |
117 | |
455ece5e |
118 | save_magic(mgs_ix, sv); |
463ee0b2 |
119 | |
ff76feab |
120 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
121 | list of magic. svt_get() may delete the current entry, add new |
122 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ |
123 | |
124 | newmg = cur = head = mg = SvMAGIC(sv); |
125 | while (mg) { |
126 | MGVTBL *vtbl = mg->mg_virtual; |
127 | |
2b260de0 |
128 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe |
129 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
ff76feab |
130 | /* Don't restore the flags for this entry if it was deleted. */ |
131 | if (mg->mg_flags & MGf_GSKIP) |
132 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; |
a0d0e21e |
133 | } |
ff76feab |
134 | |
135 | mg = mg->mg_moremagic; |
136 | |
137 | if (new) { |
138 | /* Have we finished with the new entries we saw? Start again |
139 | where we left off (unless there are more new entries). */ |
140 | if (mg == head) { |
141 | new = 0; |
142 | mg = cur; |
143 | head = newmg; |
144 | } |
145 | } |
146 | |
147 | /* Were any new entries added? */ |
148 | if (!new && (newmg = SvMAGIC(sv)) != head) { |
149 | new = 1; |
150 | cur = mg; |
151 | mg = newmg; |
760ac839 |
152 | } |
79072805 |
153 | } |
463ee0b2 |
154 | |
acfe0abc |
155 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 |
156 | return 0; |
157 | } |
158 | |
954c1994 |
159 | /* |
160 | =for apidoc mg_set |
161 | |
162 | Do magic after a value is assigned to the SV. See C<sv_magic>. |
163 | |
164 | =cut |
165 | */ |
166 | |
79072805 |
167 | int |
864dbfa3 |
168 | Perl_mg_set(pTHX_ SV *sv) |
79072805 |
169 | { |
8fb26106 |
170 | I32 mgs_ix; |
79072805 |
171 | MAGIC* mg; |
463ee0b2 |
172 | MAGIC* nextmg; |
173 | |
455ece5e |
174 | mgs_ix = SSNEW(sizeof(MGS)); |
175 | save_magic(mgs_ix, sv); |
463ee0b2 |
176 | |
177 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
178 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
179 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
180 | if (mg->mg_flags & MGf_GSKIP) { |
181 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
455ece5e |
182 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
183 | } |
2b260de0 |
184 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 |
185 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 |
186 | } |
463ee0b2 |
187 | |
acfe0abc |
188 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 |
189 | return 0; |
190 | } |
191 | |
954c1994 |
192 | /* |
193 | =for apidoc mg_length |
194 | |
195 | Report on the SV's length. See C<sv_magic>. |
196 | |
197 | =cut |
198 | */ |
199 | |
79072805 |
200 | U32 |
864dbfa3 |
201 | Perl_mg_length(pTHX_ SV *sv) |
79072805 |
202 | { |
203 | MAGIC* mg; |
463ee0b2 |
204 | STRLEN len; |
463ee0b2 |
205 | |
79072805 |
206 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
207 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
208 | if (vtbl && vtbl->svt_len) { |
8fb26106 |
209 | I32 mgs_ix; |
48e43a1c |
210 | |
455ece5e |
211 | mgs_ix = SSNEW(sizeof(MGS)); |
212 | save_magic(mgs_ix, sv); |
a0d0e21e |
213 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
214 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc |
215 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 |
216 | return len; |
217 | } |
218 | } |
219 | |
7719e241 |
220 | if (DO_UTF8(sv)) |
5636d518 |
221 | { |
222 | U8 *s = (U8*)SvPV(sv, len); |
223 | len = Perl_utf8_length(aTHX_ s, s + len); |
224 | } |
225 | else |
226 | (void)SvPV(sv, len); |
463ee0b2 |
227 | return len; |
79072805 |
228 | } |
229 | |
8fb26106 |
230 | I32 |
864dbfa3 |
231 | Perl_mg_size(pTHX_ SV *sv) |
93965878 |
232 | { |
233 | MAGIC* mg; |
234 | I32 len; |
ac27b0f5 |
235 | |
93965878 |
236 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
237 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
238 | if (vtbl && vtbl->svt_len) { |
8fb26106 |
239 | I32 mgs_ix; |
455ece5e |
240 | |
241 | mgs_ix = SSNEW(sizeof(MGS)); |
242 | save_magic(mgs_ix, sv); |
93965878 |
243 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
244 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc |
245 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 |
246 | return len; |
247 | } |
248 | } |
249 | |
250 | switch(SvTYPE(sv)) { |
251 | case SVt_PVAV: |
252 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
253 | return len; |
254 | case SVt_PVHV: |
255 | /* FIXME */ |
256 | default: |
cea2e8a9 |
257 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 |
258 | break; |
259 | } |
260 | return 0; |
261 | } |
262 | |
954c1994 |
263 | /* |
264 | =for apidoc mg_clear |
265 | |
266 | Clear something magical that the SV represents. See C<sv_magic>. |
267 | |
268 | =cut |
269 | */ |
270 | |
79072805 |
271 | int |
864dbfa3 |
272 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 |
273 | { |
8fb26106 |
274 | I32 mgs_ix; |
79072805 |
275 | MAGIC* mg; |
463ee0b2 |
276 | |
455ece5e |
277 | mgs_ix = SSNEW(sizeof(MGS)); |
278 | save_magic(mgs_ix, sv); |
463ee0b2 |
279 | |
79072805 |
280 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
281 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
282 | /* omit GSKIP -- never set here */ |
727405f8 |
283 | |
2b260de0 |
284 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 |
285 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 |
286 | } |
463ee0b2 |
287 | |
acfe0abc |
288 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 |
289 | return 0; |
290 | } |
291 | |
954c1994 |
292 | /* |
293 | =for apidoc mg_find |
294 | |
295 | Finds the magic pointer for type matching the SV. See C<sv_magic>. |
296 | |
297 | =cut |
298 | */ |
299 | |
93a17b20 |
300 | MAGIC* |
864dbfa3 |
301 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 |
302 | { |
303 | MAGIC* mg; |
3f8f4626 |
304 | if (!sv) |
305 | return 0; |
93a17b20 |
306 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
307 | if (mg->mg_type == type) |
308 | return mg; |
309 | } |
310 | return 0; |
311 | } |
312 | |
954c1994 |
313 | /* |
314 | =for apidoc mg_copy |
315 | |
316 | Copies the magic from one SV to another. See C<sv_magic>. |
317 | |
318 | =cut |
319 | */ |
320 | |
79072805 |
321 | int |
864dbfa3 |
322 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 |
323 | { |
463ee0b2 |
324 | int count = 0; |
79072805 |
325 | MAGIC* mg; |
463ee0b2 |
326 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 |
327 | MGVTBL* vtbl = mg->mg_virtual; |
328 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
329 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); |
330 | } |
331 | else if (isUPPER(mg->mg_type)) { |
33c27489 |
332 | sv_magic(nsv, |
14befaf4 |
333 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
334 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) |
335 | ? sv : mg->mg_obj, |
33c27489 |
336 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
337 | count++; |
79072805 |
338 | } |
79072805 |
339 | } |
463ee0b2 |
340 | return count; |
79072805 |
341 | } |
342 | |
954c1994 |
343 | /* |
344 | =for apidoc mg_free |
345 | |
346 | Free any magic storage used by the SV. See C<sv_magic>. |
347 | |
348 | =cut |
349 | */ |
350 | |
79072805 |
351 | int |
864dbfa3 |
352 | Perl_mg_free(pTHX_ SV *sv) |
79072805 |
353 | { |
354 | MAGIC* mg; |
355 | MAGIC* moremagic; |
356 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
357 | MGVTBL* vtbl = mg->mg_virtual; |
358 | moremagic = mg->mg_moremagic; |
2b260de0 |
359 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 |
360 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 |
361 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 |
362 | if (mg->mg_len > 0) |
88e89b8a |
363 | Safefree(mg->mg_ptr); |
565764a8 |
364 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
365 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 |
366 | } |
b881518d |
367 | if (mg->mg_flags & MGf_REFCOUNTED) |
368 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
369 | Safefree(mg); |
370 | } |
371 | SvMAGIC(sv) = 0; |
372 | return 0; |
373 | } |
374 | |
d460ef45 |
375 | |
79072805 |
376 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
377 | #include <signal.h> |
378 | #endif |
379 | |
942e002e |
380 | U32 |
864dbfa3 |
381 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
382 | { |
6cef1e77 |
383 | register REGEXP *rx; |
6cef1e77 |
384 | |
aaa362c4 |
385 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 |
386 | if (mg->mg_obj) /* @+ */ |
387 | return rx->nparens; |
388 | else /* @- */ |
389 | return rx->lastparen; |
390 | } |
ac27b0f5 |
391 | |
942e002e |
392 | return (U32)-1; |
6cef1e77 |
393 | } |
394 | |
395 | int |
864dbfa3 |
396 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
397 | { |
6cef1e77 |
398 | register I32 paren; |
cf93c79d |
399 | register I32 s; |
6cef1e77 |
400 | register I32 i; |
401 | register REGEXP *rx; |
cf93c79d |
402 | I32 t; |
6cef1e77 |
403 | |
aaa362c4 |
404 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 |
405 | paren = mg->mg_len; |
406 | if (paren < 0) |
407 | return 0; |
eb160463 |
408 | if (paren <= (I32)rx->nparens && |
cf93c79d |
409 | (s = rx->startp[paren]) != -1 && |
410 | (t = rx->endp[paren]) != -1) |
6cef1e77 |
411 | { |
412 | if (mg->mg_obj) /* @+ */ |
cf93c79d |
413 | i = t; |
6cef1e77 |
414 | else /* @- */ |
cf93c79d |
415 | i = s; |
727405f8 |
416 | |
53c4c00c |
417 | if (i > 0 && PL_reg_match_utf8) { |
1aa99e6b |
418 | char *b = rx->subbeg; |
0064a8a9 |
419 | if (b) |
420 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); |
1aa99e6b |
421 | } |
0064a8a9 |
422 | |
423 | sv_setiv(sv, i); |
6cef1e77 |
424 | } |
425 | } |
426 | return 0; |
427 | } |
428 | |
e4b89193 |
429 | int |
a29d06ed |
430 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
431 | { |
a29d06ed |
432 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 |
433 | /* NOT REACHED */ |
434 | return 0; |
a29d06ed |
435 | } |
436 | |
93a17b20 |
437 | U32 |
864dbfa3 |
438 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
439 | { |
440 | register I32 paren; |
93a17b20 |
441 | register I32 i; |
d9f97599 |
442 | register REGEXP *rx; |
a197cbdd |
443 | I32 s1, t1; |
93a17b20 |
444 | |
445 | switch (*mg->mg_ptr) { |
446 | case '1': case '2': case '3': case '4': |
447 | case '5': case '6': case '7': case '8': case '9': case '&': |
aaa362c4 |
448 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
449 | |
ffc61ed2 |
450 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 |
451 | getparen: |
eb160463 |
452 | if (paren <= (I32)rx->nparens && |
cf93c79d |
453 | (s1 = rx->startp[paren]) != -1 && |
454 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
455 | { |
cf93c79d |
456 | i = t1 - s1; |
a197cbdd |
457 | getlen: |
53c4c00c |
458 | if (i > 0 && PL_reg_match_utf8) { |
ffc61ed2 |
459 | char *s = rx->subbeg + s1; |
a197cbdd |
460 | char *send = rx->subbeg + t1; |
ffc61ed2 |
461 | |
6d5fa195 |
462 | i = t1 - s1; |
60425c38 |
463 | if (is_utf8_string((U8*)s, i)) |
464 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); |
a197cbdd |
465 | } |
ffc61ed2 |
466 | if (i < 0) |
0844c848 |
467 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 |
468 | return i; |
93a17b20 |
469 | } |
235bddc8 |
470 | else { |
471 | if (ckWARN(WARN_UNINITIALIZED)) |
472 | report_uninit(); |
473 | } |
474 | } |
475 | else { |
476 | if (ckWARN(WARN_UNINITIALIZED)) |
477 | report_uninit(); |
93a17b20 |
478 | } |
748a9306 |
479 | return 0; |
93a17b20 |
480 | case '+': |
aaa362c4 |
481 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 |
482 | paren = rx->lastparen; |
13f57bf8 |
483 | if (paren) |
484 | goto getparen; |
93a17b20 |
485 | } |
748a9306 |
486 | return 0; |
a01268b5 |
487 | case '\016': /* ^N */ |
488 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
489 | paren = rx->lastcloseparen; |
490 | if (paren) |
491 | goto getparen; |
492 | } |
493 | return 0; |
93a17b20 |
494 | case '`': |
aaa362c4 |
495 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
496 | if (rx->startp[0] != -1) { |
497 | i = rx->startp[0]; |
a197cbdd |
498 | if (i > 0) { |
499 | s1 = 0; |
500 | t1 = i; |
501 | goto getlen; |
502 | } |
93a17b20 |
503 | } |
93a17b20 |
504 | } |
748a9306 |
505 | return 0; |
93a17b20 |
506 | case '\'': |
aaa362c4 |
507 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
508 | if (rx->endp[0] != -1) { |
509 | i = rx->sublen - rx->endp[0]; |
a197cbdd |
510 | if (i > 0) { |
511 | s1 = rx->endp[0]; |
512 | t1 = rx->sublen; |
513 | goto getlen; |
514 | } |
93a17b20 |
515 | } |
93a17b20 |
516 | } |
748a9306 |
517 | return 0; |
93a17b20 |
518 | } |
519 | magic_get(sv,mg); |
2d8e6c8d |
520 | if (!SvPOK(sv) && SvNIOK(sv)) { |
521 | STRLEN n_a; |
522 | sv_2pv(sv, &n_a); |
523 | } |
93a17b20 |
524 | if (SvPOK(sv)) |
525 | return SvCUR(sv); |
526 | return 0; |
527 | } |
528 | |
79072805 |
529 | int |
864dbfa3 |
530 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
531 | { |
532 | register I32 paren; |
533 | register char *s; |
534 | register I32 i; |
d9f97599 |
535 | register REGEXP *rx; |
79072805 |
536 | |
537 | switch (*mg->mg_ptr) { |
748a9306 |
538 | case '\001': /* ^A */ |
3280af22 |
539 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
540 | break; |
49460fe6 |
541 | case '\003': /* ^C */ |
542 | sv_setiv(sv, (IV)PL_minus_c); |
543 | break; |
544 | |
79072805 |
545 | case '\004': /* ^D */ |
aea4f609 |
546 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f |
547 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 |
548 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f |
549 | #endif |
79072805 |
550 | break; |
28f23441 |
551 | case '\005': /* ^E */ |
0a378802 |
552 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 |
553 | #ifdef MACOS_TRADITIONAL |
0a378802 |
554 | { |
555 | char msg[256]; |
727405f8 |
556 | |
0a378802 |
557 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 |
558 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 |
559 | } |
727405f8 |
560 | #else |
28f23441 |
561 | #ifdef VMS |
0a378802 |
562 | { |
563 | # include <descrip.h> |
564 | # include <starlet.h> |
565 | char msg[255]; |
566 | $DESCRIPTOR(msgdsc,msg); |
567 | sv_setnv(sv,(NV) vaxc$errno); |
568 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
569 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
570 | else |
571 | sv_setpv(sv,""); |
572 | } |
28f23441 |
573 | #else |
88e89b8a |
574 | #ifdef OS2 |
0a378802 |
575 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
576 | sv_setnv(sv, (NV)errno); |
577 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
578 | } else { |
579 | if (errno != errno_isOS2) { |
580 | int tmp = _syserrno(); |
581 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
582 | Perl_rc = tmp; |
583 | } |
584 | sv_setnv(sv, (NV)Perl_rc); |
585 | sv_setpv(sv, os2error(Perl_rc)); |
586 | } |
88e89b8a |
587 | #else |
22fae026 |
588 | #ifdef WIN32 |
0a378802 |
589 | { |
590 | DWORD dwErr = GetLastError(); |
591 | sv_setnv(sv, (NV)dwErr); |
592 | if (dwErr) |
593 | { |
594 | PerlProc_GetOSError(sv, dwErr); |
595 | } |
596 | else |
597 | sv_setpv(sv, ""); |
598 | SetLastError(dwErr); |
599 | } |
22fae026 |
600 | #else |
0a378802 |
601 | sv_setnv(sv, (NV)errno); |
602 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
28f23441 |
603 | #endif |
88e89b8a |
604 | #endif |
22fae026 |
605 | #endif |
cd39f2b6 |
606 | #endif |
0a378802 |
607 | SvNOK_on(sv); /* what a wonderful hack! */ |
608 | } |
609 | else if (strEQ(mg->mg_ptr+1, "NCODING")) |
610 | sv_setsv(sv, PL_encoding); |
611 | break; |
79072805 |
612 | case '\006': /* ^F */ |
3280af22 |
613 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
614 | break; |
a0d0e21e |
615 | case '\010': /* ^H */ |
3280af22 |
616 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
617 | break; |
9d116dd7 |
618 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
619 | if (PL_inplace) |
620 | sv_setpv(sv, PL_inplace); |
79072805 |
621 | else |
3280af22 |
622 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
623 | break; |
ac27b0f5 |
624 | case '\017': /* ^O & ^OPEN */ |
625 | if (*(mg->mg_ptr+1) == '\0') |
626 | sv_setpv(sv, PL_osname); |
627 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
628 | if (!PL_compiling.cop_io) |
629 | sv_setsv(sv, &PL_sv_undef); |
630 | else { |
631 | sv_setsv(sv, PL_compiling.cop_io); |
632 | } |
633 | } |
28f23441 |
634 | break; |
79072805 |
635 | case '\020': /* ^P */ |
3280af22 |
636 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
637 | break; |
fb73857a |
638 | case '\023': /* ^S */ |
d58bf5aa |
639 | { |
3280af22 |
640 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 |
641 | (void)SvOK_off(sv); |
3280af22 |
642 | else if (PL_in_eval) |
6dc8a9e4 |
643 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a |
644 | else |
645 | sv_setiv(sv, 0); |
d58bf5aa |
646 | } |
fb73857a |
647 | break; |
79072805 |
648 | case '\024': /* ^T */ |
7c36658b |
649 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a |
650 | #ifdef BIG_TIME |
7c36658b |
651 | sv_setnv(sv, PL_basetime); |
88e89b8a |
652 | #else |
7c36658b |
653 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
654 | #endif |
7c36658b |
655 | } |
656 | else if (strEQ(mg->mg_ptr, "\024AINT")) |
657 | sv_setiv(sv, PL_tainting); |
658 | break; |
46487f74 |
659 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 |
660 | if (*(mg->mg_ptr+1) == '\0') |
661 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
0a378802 |
662 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 |
663 | if (PL_compiling.cop_warnings == pWARN_NONE || |
664 | PL_compiling.cop_warnings == pWARN_STD) |
4438c4b7 |
665 | { |
666 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
667 | } |
d3a7d8c7 |
668 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 |
669 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 |
670 | } |
4438c4b7 |
671 | else { |
672 | sv_setsv(sv, PL_compiling.cop_warnings); |
ac27b0f5 |
673 | } |
d3a7d8c7 |
674 | SvPOK_only(sv); |
4438c4b7 |
675 | } |
0a378802 |
676 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
46487f74 |
677 | sv_setiv(sv, (IV)PL_widesyscalls); |
79072805 |
678 | break; |
679 | case '1': case '2': case '3': case '4': |
680 | case '5': case '6': case '7': case '8': case '9': case '&': |
aaa362c4 |
681 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
682 | I32 s1, t1; |
683 | |
a863c7d1 |
684 | /* |
685 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
686 | * XXX Does the new way break anything? |
687 | */ |
ffc61ed2 |
688 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 |
689 | getparen: |
eb160463 |
690 | if (paren <= (I32)rx->nparens && |
cf93c79d |
691 | (s1 = rx->startp[paren]) != -1 && |
692 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
693 | { |
cf93c79d |
694 | i = t1 - s1; |
695 | s = rx->subbeg + s1; |
01ec43d0 |
696 | if (!rx->subbeg) |
c2e66d9e |
697 | break; |
698 | |
13f57bf8 |
699 | getrx: |
748a9306 |
700 | if (i >= 0) { |
cf93c79d |
701 | sv_setpvn(sv, s, i); |
a8c7c11a |
702 | if (PL_reg_match_utf8 && is_utf8_string((U8*)s, i)) |
7e2040f0 |
703 | SvUTF8_on(sv); |
704 | else |
705 | SvUTF8_off(sv); |
e9814ee1 |
706 | if (PL_tainting) { |
707 | if (RX_MATCH_TAINTED(rx)) { |
708 | MAGIC* mg = SvMAGIC(sv); |
709 | MAGIC* mgt; |
710 | PL_tainted = 1; |
711 | SvMAGIC(sv) = mg->mg_moremagic; |
712 | SvTAINT(sv); |
713 | if ((mgt = SvMAGIC(sv))) { |
714 | mg->mg_moremagic = mgt; |
715 | SvMAGIC(sv) = mg; |
716 | } |
717 | } else |
718 | SvTAINTED_off(sv); |
719 | } |
748a9306 |
720 | break; |
721 | } |
79072805 |
722 | } |
79072805 |
723 | } |
3280af22 |
724 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
725 | break; |
726 | case '+': |
aaa362c4 |
727 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 |
728 | paren = rx->lastparen; |
a0d0e21e |
729 | if (paren) |
730 | goto getparen; |
79072805 |
731 | } |
3280af22 |
732 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
733 | break; |
a01268b5 |
734 | case '\016': /* ^N */ |
735 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
736 | paren = rx->lastcloseparen; |
737 | if (paren) |
738 | goto getparen; |
739 | } |
740 | sv_setsv(sv,&PL_sv_undef); |
741 | break; |
79072805 |
742 | case '`': |
aaa362c4 |
743 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
744 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
745 | i = rx->startp[0]; |
13f57bf8 |
746 | goto getrx; |
79072805 |
747 | } |
79072805 |
748 | } |
3280af22 |
749 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
750 | break; |
751 | case '\'': |
aaa362c4 |
752 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
753 | if (rx->subbeg && rx->endp[0] != -1) { |
754 | s = rx->subbeg + rx->endp[0]; |
755 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
756 | goto getrx; |
79072805 |
757 | } |
79072805 |
758 | } |
3280af22 |
759 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
760 | break; |
761 | case '.': |
762 | #ifndef lint |
3280af22 |
763 | if (GvIO(PL_last_in_gv)) { |
357c8808 |
764 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 |
765 | } |
766 | #endif |
767 | break; |
768 | case '?': |
809a5acc |
769 | { |
809a5acc |
770 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
771 | #ifdef COMPLEX_STATUS |
6b88bc9c |
772 | LvTARGOFF(sv) = PL_statusvalue; |
773 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
774 | #endif |
809a5acc |
775 | } |
79072805 |
776 | break; |
777 | case '^': |
3280af22 |
778 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
779 | if (s) |
780 | sv_setpv(sv,s); |
781 | else { |
3280af22 |
782 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
783 | sv_catpv(sv,"_TOP"); |
784 | } |
785 | break; |
786 | case '~': |
3280af22 |
787 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
788 | if (!s) |
3280af22 |
789 | s = GvENAME(PL_defoutgv); |
79072805 |
790 | sv_setpv(sv,s); |
791 | break; |
792 | #ifndef lint |
793 | case '=': |
3280af22 |
794 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
795 | break; |
796 | case '-': |
3280af22 |
797 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
798 | break; |
799 | case '%': |
3280af22 |
800 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
801 | break; |
802 | #endif |
803 | case ':': |
804 | break; |
805 | case '/': |
806 | break; |
807 | case '[': |
3280af22 |
808 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
809 | break; |
810 | case '|': |
3280af22 |
811 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
812 | break; |
813 | case ',': |
79072805 |
814 | break; |
815 | case '\\': |
b2ce0fda |
816 | if (PL_ors_sv) |
817 | sv_setpv(sv,SvPVX(PL_ors_sv)); |
79072805 |
818 | break; |
819 | case '#': |
3280af22 |
820 | sv_setpv(sv,PL_ofmt); |
79072805 |
821 | break; |
822 | case '!': |
a5f75d66 |
823 | #ifdef VMS |
65202027 |
824 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
825 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
826 | #else |
88e89b8a |
827 | { |
828 | int saveerrno = errno; |
65202027 |
829 | sv_setnv(sv, (NV)errno); |
88e89b8a |
830 | #ifdef OS2 |
ed344e4f |
831 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
832 | sv_setpv(sv, os2error(Perl_rc)); |
88e89b8a |
833 | else |
a5f75d66 |
834 | #endif |
2304df62 |
835 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
836 | errno = saveerrno; |
837 | } |
838 | #endif |
946ec16e |
839 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
840 | break; |
841 | case '<': |
3280af22 |
842 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
843 | break; |
844 | case '>': |
3280af22 |
845 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
846 | break; |
847 | case '(': |
3280af22 |
848 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 |
849 | #ifdef HAS_GETGROUPS |
785fb66b |
850 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 |
851 | #endif |
79072805 |
852 | goto add_groups; |
853 | case ')': |
3280af22 |
854 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 |
855 | #ifdef HAS_GETGROUPS |
785fb66b |
856 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 |
857 | #endif |
79072805 |
858 | add_groups: |
79072805 |
859 | #ifdef HAS_GETGROUPS |
79072805 |
860 | { |
a0d0e21e |
861 | Groups_t gary[NGROUPS]; |
79072805 |
862 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
863 | while (--i >= 0) |
785fb66b |
864 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 |
865 | } |
866 | #endif |
155aba94 |
867 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
868 | break; |
869 | case '*': |
870 | break; |
cd39f2b6 |
871 | #ifndef MACOS_TRADITIONAL |
79072805 |
872 | case '0': |
873 | break; |
cd39f2b6 |
874 | #endif |
4d1ff10f |
875 | #ifdef USE_5005THREADS |
a863c7d1 |
876 | case '@': |
38a03e6e |
877 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
878 | break; |
4d1ff10f |
879 | #endif /* USE_5005THREADS */ |
79072805 |
880 | } |
a0d0e21e |
881 | return 0; |
79072805 |
882 | } |
883 | |
884 | int |
864dbfa3 |
885 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
886 | { |
887 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
888 | |
889 | if (uf && uf->uf_val) |
24f81a43 |
890 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 |
891 | return 0; |
892 | } |
893 | |
894 | int |
864dbfa3 |
895 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
896 | { |
897 | register char *s; |
88e89b8a |
898 | char *ptr; |
5aabfad6 |
899 | STRLEN len, klen; |
1e422769 |
900 | |
a0d0e21e |
901 | s = SvPV(sv,len); |
5aabfad6 |
902 | ptr = MgPV(mg,klen); |
88e89b8a |
903 | my_setenv(ptr, s); |
1e422769 |
904 | |
a0d0e21e |
905 | #ifdef DYNAMIC_ENV_FETCH |
906 | /* We just undefd an environment var. Is a replacement */ |
907 | /* waiting in the wings? */ |
908 | if (!len) { |
5aabfad6 |
909 | SV **valp; |
6b88bc9c |
910 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 |
911 | s = SvPV(*valp, len); |
a0d0e21e |
912 | } |
913 | #endif |
1e422769 |
914 | |
39e571d4 |
915 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
916 | /* And you'll never guess what the dog had */ |
917 | /* in its mouth... */ |
3280af22 |
918 | if (PL_tainting) { |
1e422769 |
919 | MgTAINTEDDIR_off(mg); |
920 | #ifdef VMS |
5aabfad6 |
921 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
922 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 |
923 | Stat_t sbuf; |
1e422769 |
924 | int i = 0, j = 0; |
925 | |
926 | do { /* DCL$PATH may be a search list */ |
927 | while (1) { /* as may dev portion of any element */ |
928 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
929 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
930 | cando_by_name(S_IWUSR,0,elt) ) { |
931 | MgTAINTEDDIR_on(mg); |
932 | return 0; |
933 | } |
934 | } |
935 | if ((cp = strchr(elt, ':')) != Nullch) |
936 | *cp = '\0'; |
937 | if (my_trnlnm(elt, eltbuf, j++)) |
938 | elt = eltbuf; |
939 | else |
940 | break; |
941 | } |
942 | j = 0; |
943 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
944 | } |
945 | #endif /* VMS */ |
5aabfad6 |
946 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
947 | char *strend = s + len; |
463ee0b2 |
948 | |
949 | while (s < strend) { |
96827780 |
950 | char tmpbuf[256]; |
c623ac67 |
951 | Stat_t st; |
5f74f29c |
952 | I32 i; |
96827780 |
953 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
954 | s, strend, ':', &i); |
463ee0b2 |
955 | s++; |
96827780 |
956 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
957 | || *tmpbuf != '/' |
c6ed36e1 |
958 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
959 | MgTAINTEDDIR_on(mg); |
1e422769 |
960 | return 0; |
961 | } |
463ee0b2 |
962 | } |
79072805 |
963 | } |
964 | } |
39e571d4 |
965 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
966 | |
79072805 |
967 | return 0; |
968 | } |
969 | |
970 | int |
864dbfa3 |
971 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 |
972 | { |
2d8e6c8d |
973 | STRLEN n_a; |
974 | my_setenv(MgPV(mg,n_a),Nullch); |
85e6fe83 |
975 | return 0; |
976 | } |
977 | |
88e89b8a |
978 | int |
864dbfa3 |
979 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a |
980 | { |
981 | #if defined(VMS) |
cea2e8a9 |
982 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a |
983 | #else |
3280af22 |
984 | if (PL_localizing) { |
fb73857a |
985 | HE* entry; |
2d8e6c8d |
986 | STRLEN n_a; |
fb73857a |
987 | magic_clear_all_env(sv,mg); |
988 | hv_iterinit((HV*)sv); |
155aba94 |
989 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a |
990 | I32 keylen; |
991 | my_setenv(hv_iterkey(entry, &keylen), |
2d8e6c8d |
992 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a |
993 | } |
994 | } |
995 | #endif |
996 | return 0; |
997 | } |
998 | |
999 | int |
864dbfa3 |
1000 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 |
1001 | { |
ed79a026 |
1002 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 |
1003 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d |
1004 | #else |
4efc5df6 |
1005 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 |
1006 | PerlEnv_clearenv(); |
4efc5df6 |
1007 | # else |
1008 | # ifdef USE_ENVIRON_ARRAY |
1009 | # if defined(USE_ITHREADS) |
1010 | /* only the parent thread can clobber the process environment */ |
1011 | if (PL_curinterp == aTHX) |
1012 | # endif |
1013 | { |
1014 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 |
1015 | I32 i; |
1016 | |
3280af22 |
1017 | if (environ == PL_origenviron) |
f2517201 |
1018 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 |
1019 | else |
1020 | for (i = 0; environ[i]; i++) |
f2517201 |
1021 | safesysfree(environ[i]); |
4efc5df6 |
1022 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 |
1023 | |
66b1d557 |
1024 | environ[0] = Nullch; |
4efc5df6 |
1025 | } |
1026 | # endif /* USE_ENVIRON_ARRAY */ |
052c2dc6 |
1027 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
1028 | #endif /* VMS || EPC */ |
3e3baf6d |
1029 | return 0; |
66b1d557 |
1030 | } |
1031 | |
2e34cc90 |
1032 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1033 | static int sig_handlers_initted = 0; |
1034 | #endif |
7719e241 |
1035 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1036 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1037 | #endif |
2e34cc90 |
1038 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1039 | static int sig_defaulting[SIG_SIZE]; |
1040 | #endif |
85b332e2 |
1041 | |
64ca3a65 |
1042 | #ifndef PERL_MICRO |
66b1d557 |
1043 | int |
864dbfa3 |
1044 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
1045 | { |
1046 | I32 i; |
2d8e6c8d |
1047 | STRLEN n_a; |
88e89b8a |
1048 | /* Are we fetching a signal entry? */ |
2d8e6c8d |
1049 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
1050 | if (i) { |
22c35a8c |
1051 | if(PL_psig_ptr[i]) |
1052 | sv_setsv(sv,PL_psig_ptr[i]); |
88e89b8a |
1053 | else { |
85b332e2 |
1054 | Sighandler_t sigstate; |
2e34cc90 |
1055 | sigstate = rsignal_state(i); |
23ada85b |
1056 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 |
1057 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1058 | #endif |
1059 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1060 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 |
1061 | #endif |
88e89b8a |
1062 | /* cache state so we don't fetch it again */ |
ff68c719 |
1063 | if(sigstate == SIG_IGN) |
88e89b8a |
1064 | sv_setpv(sv,"IGNORE"); |
1065 | else |
3280af22 |
1066 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c |
1067 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1068 | SvTEMP_off(sv); |
1069 | } |
1070 | } |
1071 | return 0; |
1072 | } |
1073 | int |
864dbfa3 |
1074 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
1075 | { |
1076 | I32 i; |
2d8e6c8d |
1077 | STRLEN n_a; |
88e89b8a |
1078 | /* Are we clearing a signal entry? */ |
2d8e6c8d |
1079 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
1080 | if (i) { |
22c35a8c |
1081 | if(PL_psig_ptr[i]) { |
1082 | SvREFCNT_dec(PL_psig_ptr[i]); |
1083 | PL_psig_ptr[i]=0; |
88e89b8a |
1084 | } |
22c35a8c |
1085 | if(PL_psig_name[i]) { |
1086 | SvREFCNT_dec(PL_psig_name[i]); |
1087 | PL_psig_name[i]=0; |
88e89b8a |
1088 | } |
1089 | } |
1090 | return 0; |
1091 | } |
3d37d572 |
1092 | |
0a8e0eff |
1093 | void |
1094 | Perl_raise_signal(pTHX_ int sig) |
1095 | { |
1096 | /* Set a flag to say this signal is pending */ |
1097 | PL_psig_pend[sig]++; |
1098 | /* And one to say _a_ signal is pending */ |
1099 | PL_sig_pending = 1; |
1100 | } |
1101 | |
1102 | Signal_t |
1103 | Perl_csighandler(int sig) |
1104 | { |
1018e26f |
1105 | #ifdef PERL_GET_SIG_CONTEXT |
1106 | dTHXa(PERL_GET_SIG_CONTEXT); |
1107 | #else |
85b332e2 |
1108 | dTHX; |
1109 | #endif |
23ada85b |
1110 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1111 | (void) rsignal(sig, &Perl_csighandler); |
1112 | if (sig_ignoring[sig]) return; |
1113 | #endif |
2e34cc90 |
1114 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 |
1115 | if (sig_defaulting[sig]) |
2e34cc90 |
1116 | #ifdef KILL_BY_SIGPRC |
1117 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); |
1118 | #else |
1119 | exit(1); |
1120 | #endif |
1121 | #endif |
1122 | |
0a8e0eff |
1123 | #ifdef PERL_OLD_SIGNALS |
1124 | /* Call the perl level handler now with risk we may be in malloc() etc. */ |
1125 | (*PL_sighandlerp)(sig); |
1126 | #else |
0a8e0eff |
1127 | Perl_raise_signal(aTHX_ sig); |
1128 | #endif |
1129 | } |
1130 | |
2e34cc90 |
1131 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1132 | void |
1133 | Perl_csighandler_init(void) |
1134 | { |
1135 | int sig; |
1136 | if (sig_handlers_initted) return; |
1137 | |
1138 | for (sig = 1; sig < SIG_SIZE; sig++) { |
1139 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
218fdd94 |
1140 | dTHX; |
2e34cc90 |
1141 | sig_defaulting[sig] = 1; |
1142 | (void) rsignal(sig, &Perl_csighandler); |
1143 | #endif |
1144 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
1145 | sig_ignoring[sig] = 0; |
1146 | #endif |
1147 | } |
1148 | sig_handlers_initted = 1; |
1149 | } |
1150 | #endif |
1151 | |
0a8e0eff |
1152 | void |
1153 | Perl_despatch_signals(pTHX) |
1154 | { |
1155 | int sig; |
1156 | PL_sig_pending = 0; |
1157 | for (sig = 1; sig < SIG_SIZE; sig++) { |
1158 | if (PL_psig_pend[sig]) { |
1159 | PL_psig_pend[sig] = 0; |
1160 | (*PL_sighandlerp)(sig); |
1161 | } |
1162 | } |
1163 | } |
1164 | |
85e6fe83 |
1165 | int |
864dbfa3 |
1166 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1167 | { |
1168 | register char *s; |
1169 | I32 i; |
b7953727 |
1170 | SV** svp = 0; |
e72dc28c |
1171 | STRLEN len; |
a0d0e21e |
1172 | |
e72dc28c |
1173 | s = MgPV(mg,len); |
748a9306 |
1174 | if (*s == '_') { |
1175 | if (strEQ(s,"__DIE__")) |
3280af22 |
1176 | svp = &PL_diehook; |
748a9306 |
1177 | else if (strEQ(s,"__WARN__")) |
3280af22 |
1178 | svp = &PL_warnhook; |
748a9306 |
1179 | else |
cea2e8a9 |
1180 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 |
1181 | i = 0; |
4633a7c4 |
1182 | if (*svp) { |
1183 | SvREFCNT_dec(*svp); |
1184 | *svp = 0; |
1185 | } |
748a9306 |
1186 | } |
1187 | else { |
1188 | i = whichsig(s); /* ...no, a brick */ |
1189 | if (!i) { |
e476b1b5 |
1190 | if (ckWARN(WARN_SIGNAL)) |
9014280d |
1191 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 |
1192 | return 0; |
1193 | } |
2e34cc90 |
1194 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1195 | if (!sig_handlers_initted) Perl_csighandler_init(); |
1196 | #endif |
23ada85b |
1197 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1198 | sig_ignoring[i] = 0; |
1199 | #endif |
2e34cc90 |
1200 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1201 | sig_defaulting[i] = 0; |
1202 | #endif |
22c35a8c |
1203 | SvREFCNT_dec(PL_psig_name[i]); |
1204 | SvREFCNT_dec(PL_psig_ptr[i]); |
1205 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1206 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c |
1207 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c |
1208 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 |
1209 | } |
a0d0e21e |
1210 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
1211 | if (i) |
0a8e0eff |
1212 | (void)rsignal(i, &Perl_csighandler); |
748a9306 |
1213 | else |
1214 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
1215 | return 0; |
1216 | } |
e72dc28c |
1217 | s = SvPV_force(sv,len); |
748a9306 |
1218 | if (strEQ(s,"IGNORE")) { |
85b332e2 |
1219 | if (i) { |
23ada85b |
1220 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1221 | sig_ignoring[i] = 1; |
1222 | (void)rsignal(i, &Perl_csighandler); |
1223 | #else |
ff68c719 |
1224 | (void)rsignal(i, SIG_IGN); |
85b332e2 |
1225 | #endif |
1226 | } else |
748a9306 |
1227 | *svp = 0; |
1228 | } |
1229 | else if (strEQ(s,"DEFAULT") || !*s) { |
1230 | if (i) |
2e34cc90 |
1231 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1232 | { |
1233 | sig_defaulting[i] = 1; |
1234 | (void)rsignal(i, &Perl_csighandler); |
1235 | } |
1236 | #else |
ff68c719 |
1237 | (void)rsignal(i, SIG_DFL); |
2e34cc90 |
1238 | #endif |
748a9306 |
1239 | else |
1240 | *svp = 0; |
1241 | } |
79072805 |
1242 | else { |
5aabfad6 |
1243 | /* |
1244 | * We should warn if HINT_STRICT_REFS, but without |
1245 | * access to a known hint bit in a known OP, we can't |
1246 | * tell whether HINT_STRICT_REFS is in force or not. |
1247 | */ |
46fc3d4c |
1248 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c |
1249 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 |
1250 | if (i) |
0a8e0eff |
1251 | (void)rsignal(i, &Perl_csighandler); |
748a9306 |
1252 | else |
1253 | *svp = SvREFCNT_inc(sv); |
79072805 |
1254 | } |
1255 | return 0; |
1256 | } |
64ca3a65 |
1257 | #endif /* !PERL_MICRO */ |
79072805 |
1258 | |
1259 | int |
864dbfa3 |
1260 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1261 | { |
3280af22 |
1262 | PL_sub_generation++; |
463ee0b2 |
1263 | return 0; |
1264 | } |
1265 | |
1266 | int |
864dbfa3 |
1267 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1268 | { |
a0d0e21e |
1269 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
1270 | PL_amagic_generation++; |
463ee0b2 |
1271 | |
a0d0e21e |
1272 | return 0; |
1273 | } |
463ee0b2 |
1274 | |
946ec16e |
1275 | int |
864dbfa3 |
1276 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1277 | { |
1278 | HV *hv = (HV*)LvTARG(sv); |
6ff81951 |
1279 | I32 i = 0; |
7719e241 |
1280 | |
6ff81951 |
1281 | if (hv) { |
497b47a8 |
1282 | (void) hv_iterinit(hv); |
1283 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
1284 | i = HvKEYS(hv); |
1285 | else { |
1286 | while (hv_iternext(hv)) |
1287 | i++; |
1288 | } |
6ff81951 |
1289 | } |
1290 | |
1291 | sv_setiv(sv, (IV)i); |
1292 | return 0; |
1293 | } |
1294 | |
1295 | int |
864dbfa3 |
1296 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e |
1297 | { |
1298 | if (LvTARG(sv)) { |
1299 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1300 | } |
1301 | return 0; |
ac27b0f5 |
1302 | } |
946ec16e |
1303 | |
e336de0d |
1304 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1305 | STATIC int |
cea2e8a9 |
1306 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1307 | { |
1308 | dSP; |
463ee0b2 |
1309 | |
924508f0 |
1310 | PUSHMARK(SP); |
1311 | EXTEND(SP, n); |
33c27489 |
1312 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 |
1313 | if (n > 1) { |
93965878 |
1314 | if (mg->mg_ptr) { |
565764a8 |
1315 | if (mg->mg_len >= 0) |
79cb57f6 |
1316 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 |
1317 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1318 | PUSHs((SV*)mg->mg_ptr); |
1319 | } |
14befaf4 |
1320 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 |
1321 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1322 | } |
1323 | } |
1324 | if (n > 2) { |
1325 | PUSHs(val); |
88e89b8a |
1326 | } |
463ee0b2 |
1327 | PUTBACK; |
1328 | |
864dbfa3 |
1329 | return call_method(meth, flags); |
946ec16e |
1330 | } |
1331 | |
76e3520e |
1332 | STATIC int |
cea2e8a9 |
1333 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1334 | { |
1335 | dSP; |
463ee0b2 |
1336 | |
a0d0e21e |
1337 | ENTER; |
1338 | SAVETMPS; |
e788e7d3 |
1339 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1340 | |
33c27489 |
1341 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1342 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1343 | } |
463ee0b2 |
1344 | |
d3acc0f7 |
1345 | POPSTACK; |
a0d0e21e |
1346 | FREETMPS; |
1347 | LEAVE; |
1348 | return 0; |
1349 | } |
463ee0b2 |
1350 | |
a0d0e21e |
1351 | int |
864dbfa3 |
1352 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1353 | { |
1354 | magic_methpack(sv,mg,"FETCH"); |
1355 | if (mg->mg_ptr) |
1356 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1357 | return 0; |
1358 | } |
1359 | |
1360 | int |
864dbfa3 |
1361 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d |
1362 | { |
1363 | dSP; |
a60c0954 |
1364 | ENTER; |
e788e7d3 |
1365 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1366 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1367 | POPSTACK; |
a60c0954 |
1368 | LEAVE; |
463ee0b2 |
1369 | return 0; |
1370 | } |
1371 | |
1372 | int |
864dbfa3 |
1373 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1374 | { |
a0d0e21e |
1375 | return magic_methpack(sv,mg,"DELETE"); |
1376 | } |
463ee0b2 |
1377 | |
93965878 |
1378 | |
1379 | U32 |
864dbfa3 |
1380 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 |
1381 | { |
e336de0d |
1382 | dSP; |
93965878 |
1383 | U32 retval = 0; |
1384 | |
1385 | ENTER; |
1386 | SAVETMPS; |
e788e7d3 |
1387 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1388 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1389 | sv = *PL_stack_sp--; |
a60c0954 |
1390 | retval = (U32) SvIV(sv)-1; |
93965878 |
1391 | } |
d3acc0f7 |
1392 | POPSTACK; |
93965878 |
1393 | FREETMPS; |
1394 | LEAVE; |
1395 | return retval; |
1396 | } |
1397 | |
cea2e8a9 |
1398 | int |
1399 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1400 | { |
1401 | dSP; |
463ee0b2 |
1402 | |
e336de0d |
1403 | ENTER; |
e788e7d3 |
1404 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1405 | PUSHMARK(SP); |
33c27489 |
1406 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1407 | PUTBACK; |
864dbfa3 |
1408 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1409 | POPSTACK; |
a60c0954 |
1410 | LEAVE; |
463ee0b2 |
1411 | return 0; |
1412 | } |
1413 | |
1414 | int |
864dbfa3 |
1415 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1416 | { |
463ee0b2 |
1417 | dSP; |
dff6d3cd |
1418 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1419 | |
1420 | ENTER; |
a0d0e21e |
1421 | SAVETMPS; |
e788e7d3 |
1422 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1423 | PUSHMARK(SP); |
1424 | EXTEND(SP, 2); |
33c27489 |
1425 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1426 | if (SvOK(key)) |
1427 | PUSHs(key); |
1428 | PUTBACK; |
1429 | |
864dbfa3 |
1430 | if (call_method(meth, G_SCALAR)) |
3280af22 |
1431 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1432 | |
d3acc0f7 |
1433 | POPSTACK; |
a0d0e21e |
1434 | FREETMPS; |
1435 | LEAVE; |
79072805 |
1436 | return 0; |
1437 | } |
1438 | |
1439 | int |
864dbfa3 |
1440 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1441 | { |
1442 | return magic_methpack(sv,mg,"EXISTS"); |
ac27b0f5 |
1443 | } |
a0d0e21e |
1444 | |
1445 | int |
864dbfa3 |
1446 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1447 | { |
1448 | OP *o; |
1449 | I32 i; |
1450 | GV* gv; |
1451 | SV** svp; |
2d8e6c8d |
1452 | STRLEN n_a; |
79072805 |
1453 | |
3280af22 |
1454 | gv = PL_DBline; |
79072805 |
1455 | i = SvTRUE(sv); |
188ea221 |
1456 | svp = av_fetch(GvAV(gv), |
2d8e6c8d |
1457 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 |
1458 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
eb160463 |
1459 | o->op_private = (U8)i; |
79072805 |
1460 | return 0; |
1461 | } |
1462 | |
1463 | int |
864dbfa3 |
1464 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1465 | { |
3280af22 |
1466 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 |
1467 | return 0; |
1468 | } |
1469 | |
1470 | int |
864dbfa3 |
1471 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1472 | { |
3280af22 |
1473 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e |
1474 | return 0; |
1475 | } |
1476 | |
1477 | int |
864dbfa3 |
1478 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1479 | { |
1480 | SV* lsv = LvTARG(sv); |
ac27b0f5 |
1481 | |
a0d0e21e |
1482 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 |
1483 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 |
1484 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 |
1485 | I32 i = mg->mg_len; |
7e2040f0 |
1486 | if (DO_UTF8(lsv)) |
a0ed51b3 |
1487 | sv_pos_b2u(lsv, &i); |
1488 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1489 | return 0; |
1490 | } |
1491 | } |
1492 | (void)SvOK_off(sv); |
1493 | return 0; |
1494 | } |
1495 | |
1496 | int |
864dbfa3 |
1497 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1498 | { |
1499 | SV* lsv = LvTARG(sv); |
1500 | SSize_t pos; |
1501 | STRLEN len; |
c00206c8 |
1502 | STRLEN ulen = 0; |
a0d0e21e |
1503 | |
1504 | mg = 0; |
ac27b0f5 |
1505 | |
a0d0e21e |
1506 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 |
1507 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1508 | if (!mg) { |
1509 | if (!SvOK(sv)) |
1510 | return 0; |
14befaf4 |
1511 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1512 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1513 | } |
1514 | else if (!SvOK(sv)) { |
565764a8 |
1515 | mg->mg_len = -1; |
a0d0e21e |
1516 | return 0; |
1517 | } |
1518 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1519 | |
c485e607 |
1520 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1521 | |
7e2040f0 |
1522 | if (DO_UTF8(lsv)) { |
a0ed51b3 |
1523 | ulen = sv_len_utf8(lsv); |
1524 | if (ulen) |
1525 | len = ulen; |
a0ed51b3 |
1526 | } |
1527 | |
a0d0e21e |
1528 | if (pos < 0) { |
1529 | pos += len; |
1530 | if (pos < 0) |
1531 | pos = 0; |
1532 | } |
eb160463 |
1533 | else if (pos > (SSize_t)len) |
a0d0e21e |
1534 | pos = len; |
a0ed51b3 |
1535 | |
1536 | if (ulen) { |
1537 | I32 p = pos; |
1538 | sv_pos_u2b(lsv, &p, 0); |
1539 | pos = p; |
1540 | } |
727405f8 |
1541 | |
565764a8 |
1542 | mg->mg_len = pos; |
71be2cbc |
1543 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1544 | |
79072805 |
1545 | return 0; |
1546 | } |
1547 | |
1548 | int |
864dbfa3 |
1549 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1550 | { |
8646b087 |
1551 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1552 | SvFAKE_off(sv); |
946ec16e |
1553 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1554 | SvFAKE_on(sv); |
1555 | } |
1556 | else |
946ec16e |
1557 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1558 | return 0; |
1559 | } |
1560 | |
1561 | int |
864dbfa3 |
1562 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1563 | { |
1564 | register char *s; |
1565 | GV* gv; |
2d8e6c8d |
1566 | STRLEN n_a; |
79072805 |
1567 | |
1568 | if (!SvOK(sv)) |
1569 | return 0; |
2d8e6c8d |
1570 | s = SvPV(sv, n_a); |
79072805 |
1571 | if (*s == '*' && s[1]) |
1572 | s++; |
85e6fe83 |
1573 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1574 | if (sv == (SV*)gv) |
1575 | return 0; |
1576 | if (GvGP(sv)) |
88e89b8a |
1577 | gp_free((GV*)sv); |
79072805 |
1578 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1579 | return 0; |
1580 | } |
1581 | |
1582 | int |
864dbfa3 |
1583 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1584 | { |
1585 | STRLEN len; |
1586 | SV *lsv = LvTARG(sv); |
1587 | char *tmps = SvPV(lsv,len); |
1588 | I32 offs = LvTARGOFF(sv); |
1589 | I32 rem = LvTARGLEN(sv); |
1590 | |
9aa983d2 |
1591 | if (SvUTF8(lsv)) |
1592 | sv_pos_u2b(lsv, &offs, &rem); |
eb160463 |
1593 | if (offs > (I32)len) |
6ff81951 |
1594 | offs = len; |
eb160463 |
1595 | if (rem + offs > (I32)len) |
6ff81951 |
1596 | rem = len - offs; |
1597 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
9aa983d2 |
1598 | if (SvUTF8(lsv)) |
2ef4b674 |
1599 | SvUTF8_on(sv); |
6ff81951 |
1600 | return 0; |
1601 | } |
1602 | |
1603 | int |
864dbfa3 |
1604 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1605 | { |
9aa983d2 |
1606 | STRLEN len; |
1607 | char *tmps = SvPV(sv, len); |
1608 | SV *lsv = LvTARG(sv); |
1609 | I32 lvoff = LvTARGOFF(sv); |
1610 | I32 lvlen = LvTARGLEN(sv); |
075a4a2b |
1611 | |
1aa99e6b |
1612 | if (DO_UTF8(sv)) { |
9aa983d2 |
1613 | sv_utf8_upgrade(lsv); |
1614 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
1615 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1616 | SvUTF8_on(lsv); |
1617 | } |
9bf12eaf |
1618 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 |
1619 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 |
1620 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 |
1621 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1622 | Safefree(tmps); |
1aa99e6b |
1623 | } |
1624 | else |
9aa983d2 |
1625 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b |
1626 | |
79072805 |
1627 | return 0; |
1628 | } |
1629 | |
1630 | int |
864dbfa3 |
1631 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1632 | { |
565764a8 |
1633 | TAINT_IF((mg->mg_len & 1) || |
155aba94 |
1634 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 |
1635 | return 0; |
1636 | } |
1637 | |
1638 | int |
864dbfa3 |
1639 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1640 | { |
3280af22 |
1641 | if (PL_localizing) { |
1642 | if (PL_localizing == 1) |
565764a8 |
1643 | mg->mg_len <<= 1; |
748a9306 |
1644 | else |
565764a8 |
1645 | mg->mg_len >>= 1; |
a0d0e21e |
1646 | } |
3280af22 |
1647 | else if (PL_tainted) |
565764a8 |
1648 | mg->mg_len |= 1; |
748a9306 |
1649 | else |
565764a8 |
1650 | mg->mg_len &= ~1; |
463ee0b2 |
1651 | return 0; |
1652 | } |
1653 | |
1654 | int |
864dbfa3 |
1655 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1656 | { |
1657 | SV *lsv = LvTARG(sv); |
6ff81951 |
1658 | |
1659 | if (!lsv) { |
155aba94 |
1660 | (void)SvOK_off(sv); |
6ff81951 |
1661 | return 0; |
1662 | } |
6ff81951 |
1663 | |
81e118e0 |
1664 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 |
1665 | return 0; |
1666 | } |
1667 | |
1668 | int |
864dbfa3 |
1669 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1670 | { |
1671 | do_vecset(sv); /* XXX slurp this routine */ |
1672 | return 0; |
1673 | } |
1674 | |
1675 | int |
864dbfa3 |
1676 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc |
1677 | { |
71be2cbc |
1678 | SV *targ = Nullsv; |
5f05dabc |
1679 | if (LvTARGLEN(sv)) { |
68dc0745 |
1680 | if (mg->mg_obj) { |
74e13ce4 |
1681 | SV *ahv = LvTARG(sv); |
6d822dc4 |
1682 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1683 | if (he) |
1684 | targ = HeVAL(he); |
68dc0745 |
1685 | } |
1686 | else { |
3c78fafa |
1687 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1688 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1689 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1690 | } |
3280af22 |
1691 | if (targ && targ != &PL_sv_undef) { |
68dc0745 |
1692 | /* somebody else defined it for us */ |
1693 | SvREFCNT_dec(LvTARG(sv)); |
1694 | LvTARG(sv) = SvREFCNT_inc(targ); |
1695 | LvTARGLEN(sv) = 0; |
1696 | SvREFCNT_dec(mg->mg_obj); |
1697 | mg->mg_obj = Nullsv; |
1698 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1699 | } |
5f05dabc |
1700 | } |
71be2cbc |
1701 | else |
1702 | targ = LvTARG(sv); |
3280af22 |
1703 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
1704 | return 0; |
1705 | } |
1706 | |
1707 | int |
864dbfa3 |
1708 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc |
1709 | { |
1710 | if (LvTARGLEN(sv)) |
68dc0745 |
1711 | vivify_defelem(sv); |
1712 | if (LvTARG(sv)) { |
5f05dabc |
1713 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1714 | SvSETMAGIC(LvTARG(sv)); |
1715 | } |
5f05dabc |
1716 | return 0; |
1717 | } |
1718 | |
71be2cbc |
1719 | void |
864dbfa3 |
1720 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc |
1721 | { |
74e13ce4 |
1722 | MAGIC *mg; |
1723 | SV *value = Nullsv; |
71be2cbc |
1724 | |
14befaf4 |
1725 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc |
1726 | return; |
68dc0745 |
1727 | if (mg->mg_obj) { |
74e13ce4 |
1728 | SV *ahv = LvTARG(sv); |
2d8e6c8d |
1729 | STRLEN n_a; |
6d822dc4 |
1730 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1731 | if (he) |
1732 | value = HeVAL(he); |
3280af22 |
1733 | if (!value || value == &PL_sv_undef) |
cea2e8a9 |
1734 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc |
1735 | } |
68dc0745 |
1736 | else { |
1737 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1738 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1739 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1740 | else { |
1741 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
1742 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 |
1743 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 |
1744 | } |
1745 | } |
3e3baf6d |
1746 | (void)SvREFCNT_inc(value); |
68dc0745 |
1747 | SvREFCNT_dec(LvTARG(sv)); |
1748 | LvTARG(sv) = value; |
71be2cbc |
1749 | LvTARGLEN(sv) = 0; |
68dc0745 |
1750 | SvREFCNT_dec(mg->mg_obj); |
1751 | mg->mg_obj = Nullsv; |
1752 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1753 | } |
1754 | |
1755 | int |
864dbfa3 |
1756 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 |
1757 | { |
1758 | AV *av = (AV*)mg->mg_obj; |
1759 | SV **svp = AvARRAY(av); |
1760 | I32 i = AvFILLp(av); |
1761 | while (i >= 0) { |
1762 | if (svp[i] && svp[i] != &PL_sv_undef) { |
1763 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 |
1764 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 |
1765 | /* XXX Should we check that it hasn't changed? */ |
1766 | SvRV(svp[i]) = 0; |
155aba94 |
1767 | (void)SvOK_off(svp[i]); |
810b8aa5 |
1768 | SvWEAKREF_off(svp[i]); |
1769 | svp[i] = &PL_sv_undef; |
1770 | } |
1771 | i--; |
1772 | } |
1773 | return 0; |
1774 | } |
1775 | |
1776 | int |
864dbfa3 |
1777 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
1778 | { |
565764a8 |
1779 | mg->mg_len = -1; |
c6496cc7 |
1780 | SvSCREAM_off(sv); |
93a17b20 |
1781 | return 0; |
1782 | } |
1783 | |
1784 | int |
864dbfa3 |
1785 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1786 | { |
14befaf4 |
1787 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 |
1788 | SvVALID_off(sv); |
1789 | return 0; |
1790 | } |
1791 | |
1792 | int |
864dbfa3 |
1793 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff |
1794 | { |
14befaf4 |
1795 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff |
1796 | SvCOMPILED_off(sv); |
1797 | return 0; |
1798 | } |
1799 | |
1800 | int |
864dbfa3 |
1801 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1802 | { |
1803 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1804 | |
1805 | if (uf && uf->uf_set) |
24f81a43 |
1806 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 |
1807 | return 0; |
1808 | } |
1809 | |
c277df42 |
1810 | int |
864dbfa3 |
1811 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 |
1812 | { |
1813 | regexp *re = (regexp *)mg->mg_obj; |
1814 | ReREFCNT_dec(re); |
1815 | return 0; |
1816 | } |
1817 | |
7a4c00b4 |
1818 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1819 | int |
864dbfa3 |
1820 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 |
1821 | { |
1822 | /* |
838b5b74 |
1823 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 |
1824 | * and vanished with a faint plop. |
1825 | */ |
7a4c00b4 |
1826 | if (mg->mg_ptr) { |
1827 | Safefree(mg->mg_ptr); |
1828 | mg->mg_ptr = NULL; |
565764a8 |
1829 | mg->mg_len = -1; |
7a4c00b4 |
1830 | } |
bbce6d69 |
1831 | return 0; |
1832 | } |
7a4c00b4 |
1833 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1834 | |
1835 | int |
864dbfa3 |
1836 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1837 | { |
1838 | register char *s; |
1839 | I32 i; |
8990e307 |
1840 | STRLEN len; |
79072805 |
1841 | switch (*mg->mg_ptr) { |
748a9306 |
1842 | case '\001': /* ^A */ |
3280af22 |
1843 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
1844 | break; |
49460fe6 |
1845 | case '\003': /* ^C */ |
eb160463 |
1846 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 |
1847 | break; |
1848 | |
79072805 |
1849 | case '\004': /* ^D */ |
aea4f609 |
1850 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 |
1851 | DEBUG_x(dump_all()); |
1852 | break; |
28f23441 |
1853 | case '\005': /* ^E */ |
0a378802 |
1854 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 |
1855 | #ifdef MACOS_TRADITIONAL |
0a378802 |
1856 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 |
1857 | #else |
cd39f2b6 |
1858 | # ifdef VMS |
0a378802 |
1859 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf |
1860 | # else |
cd39f2b6 |
1861 | # ifdef WIN32 |
0a378802 |
1862 | SetLastError( SvIV(sv) ); |
cd39f2b6 |
1863 | # else |
9fed8b87 |
1864 | # ifdef OS2 |
0a378802 |
1865 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 |
1866 | # else |
0a378802 |
1867 | /* will anyone ever use this? */ |
1868 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
cd39f2b6 |
1869 | # endif |
048c1ddf |
1870 | # endif |
1871 | # endif |
22fae026 |
1872 | #endif |
0a378802 |
1873 | } |
1874 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { |
1875 | if (PL_encoding) |
1876 | sv_setsv(PL_encoding, sv); |
1877 | else |
1878 | PL_encoding = newSVsv(sv); |
1879 | } |
79072805 |
1880 | case '\006': /* ^F */ |
3280af22 |
1881 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1882 | break; |
a0d0e21e |
1883 | case '\010': /* ^H */ |
3280af22 |
1884 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
1885 | break; |
9d116dd7 |
1886 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
1887 | if (PL_inplace) |
1888 | Safefree(PL_inplace); |
79072805 |
1889 | if (SvOK(sv)) |
2d8e6c8d |
1890 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 |
1891 | else |
3280af22 |
1892 | PL_inplace = Nullch; |
79072805 |
1893 | break; |
28f23441 |
1894 | case '\017': /* ^O */ |
ac27b0f5 |
1895 | if (*(mg->mg_ptr+1) == '\0') { |
1896 | if (PL_osname) |
1897 | Safefree(PL_osname); |
1898 | if (SvOK(sv)) |
1899 | PL_osname = savepv(SvPV(sv,len)); |
1900 | else |
1901 | PL_osname = Nullch; |
1902 | } |
1903 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
1904 | if (!PL_compiling.cop_io) |
1905 | PL_compiling.cop_io = newSVsv(sv); |
1906 | else |
1907 | sv_setsv(PL_compiling.cop_io,sv); |
1908 | } |
28f23441 |
1909 | break; |
79072805 |
1910 | case '\020': /* ^P */ |
3280af22 |
1911 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e |
1912 | if (PL_perldb && !PL_DBsingle) |
1913 | init_debugger(); |
79072805 |
1914 | break; |
1915 | case '\024': /* ^T */ |
88e89b8a |
1916 | #ifdef BIG_TIME |
6b88bc9c |
1917 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
1918 | #else |
3280af22 |
1919 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1920 | #endif |
79072805 |
1921 | break; |
46487f74 |
1922 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 |
1923 | if (*(mg->mg_ptr+1) == '\0') { |
1924 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1925 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
ac27b0f5 |
1926 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 |
1927 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 |
1928 | } |
599cee73 |
1929 | } |
0a378802 |
1930 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 |
1931 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e |
1932 | if (!SvPOK(sv) && PL_localizing) { |
1933 | sv_setpvn(sv, WARN_NONEstring, WARNsize); |
d3a7d8c7 |
1934 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e |
1935 | break; |
1936 | } |
f4fc7782 |
1937 | { |
b5477537 |
1938 | STRLEN len, i; |
d3a7d8c7 |
1939 | int accumulate = 0 ; |
f4fc7782 |
1940 | int any_fatals = 0 ; |
d3a7d8c7 |
1941 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 |
1942 | for (i = 0 ; i < len ; ++i) { |
1943 | accumulate |= ptr[i] ; |
1944 | any_fatals |= (ptr[i] & 0xAA) ; |
1945 | } |
d3a7d8c7 |
1946 | if (!accumulate) |
1947 | PL_compiling.cop_warnings = pWARN_NONE; |
f4fc7782 |
1948 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1949 | PL_compiling.cop_warnings = pWARN_ALL; |
1950 | PL_dowarn |= G_WARN_ONCE ; |
727405f8 |
1951 | } |
d3a7d8c7 |
1952 | else { |
1953 | if (specialWARN(PL_compiling.cop_warnings)) |
1954 | PL_compiling.cop_warnings = newSVsv(sv) ; |
1955 | else |
1956 | sv_setsv(PL_compiling.cop_warnings, sv); |
1957 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) |
1958 | PL_dowarn |= G_WARN_ONCE ; |
1959 | } |
f4fc7782 |
1960 | |
d3a7d8c7 |
1961 | } |
4438c4b7 |
1962 | } |
971a9dd3 |
1963 | } |
0a378802 |
1964 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
8a31060d |
1965 | PL_widesyscalls = (bool)SvTRUE(sv); |
79072805 |
1966 | break; |
1967 | case '.': |
3280af22 |
1968 | if (PL_localizing) { |
1969 | if (PL_localizing == 1) |
7766f137 |
1970 | SAVESPTR(PL_last_in_gv); |
748a9306 |
1971 | } |
3280af22 |
1972 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 |
1973 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 |
1974 | break; |
1975 | case '^': |
3280af22 |
1976 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1977 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1978 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1979 | break; |
1980 | case '~': |
3280af22 |
1981 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1982 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1983 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1984 | break; |
1985 | case '=': |
632db599 |
1986 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1987 | break; |
1988 | case '-': |
632db599 |
1989 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 |
1990 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1991 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
1992 | break; |
1993 | case '%': |
632db599 |
1994 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1995 | break; |
1996 | case '|': |
4b65379b |
1997 | { |
3280af22 |
1998 | IO *io = GvIOp(PL_defoutgv); |
720f287d |
1999 | if(!io) |
2000 | break; |
4b65379b |
2001 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2002 | IoFLAGS(io) &= ~IOf_FLUSH; |
2003 | else { |
2004 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
2005 | PerlIO *ofp = IoOFP(io); |
2006 | if (ofp) |
2007 | (void)PerlIO_flush(ofp); |
2008 | IoFLAGS(io) |= IOf_FLUSH; |
2009 | } |
2010 | } |
79072805 |
2011 | } |
2012 | break; |
2013 | case '*': |
463ee0b2 |
2014 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 |
2015 | PL_multiline = (i != 0); |
79072805 |
2016 | break; |
2017 | case '/': |
3280af22 |
2018 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 |
2019 | PL_rs = newSVsv(sv); |
79072805 |
2020 | break; |
2021 | case '\\': |
7889fe52 |
2022 | if (PL_ors_sv) |
2023 | SvREFCNT_dec(PL_ors_sv); |
009c130f |
2024 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 |
2025 | PL_ors_sv = newSVsv(sv); |
009c130f |
2026 | } |
e3c19b7b |
2027 | else { |
7889fe52 |
2028 | PL_ors_sv = Nullsv; |
e3c19b7b |
2029 | } |
79072805 |
2030 | break; |
2031 | case ',': |
7889fe52 |
2032 | if (PL_ofs_sv) |
2033 | SvREFCNT_dec(PL_ofs_sv); |
2034 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
2035 | PL_ofs_sv = newSVsv(sv); |
2036 | } |
2037 | else { |
2038 | PL_ofs_sv = Nullsv; |
2039 | } |
79072805 |
2040 | break; |
2041 | case '#': |
3280af22 |
2042 | if (PL_ofmt) |
2043 | Safefree(PL_ofmt); |
2d8e6c8d |
2044 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 |
2045 | break; |
2046 | case '[': |
3280af22 |
2047 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
2048 | break; |
2049 | case '?': |
ff0cee69 |
2050 | #ifdef COMPLEX_STATUS |
6b88bc9c |
2051 | if (PL_localizing == 2) { |
2052 | PL_statusvalue = LvTARGOFF(sv); |
2053 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
2054 | } |
2055 | else |
2056 | #endif |
2057 | #ifdef VMSISH_STATUS |
2058 | if (VMSISH_STATUS) |
2059 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
2060 | else |
2061 | #endif |
2062 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2063 | break; |
2064 | case '!': |
91487cfc |
2065 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
2066 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
2067 | break; |
2068 | case '<': |
3280af22 |
2069 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2070 | if (PL_delaymagic) { |
2071 | PL_delaymagic |= DM_RUID; |
79072805 |
2072 | break; /* don't do magic till later */ |
2073 | } |
2074 | #ifdef HAS_SETRUID |
b28d0864 |
2075 | (void)setruid((Uid_t)PL_uid); |
79072805 |
2076 | #else |
2077 | #ifdef HAS_SETREUID |
3280af22 |
2078 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
2079 | #else |
85e6fe83 |
2080 | #ifdef HAS_SETRESUID |
b28d0864 |
2081 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
2082 | #else |
b28d0864 |
2083 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2084 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
2085 | else { |
d8eceb89 |
2086 | PL_uid = PerlProc_getuid(); |
cea2e8a9 |
2087 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e |
2088 | } |
79072805 |
2089 | #endif |
2090 | #endif |
85e6fe83 |
2091 | #endif |
d8eceb89 |
2092 | PL_uid = PerlProc_getuid(); |
3280af22 |
2093 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2094 | break; |
2095 | case '>': |
3280af22 |
2096 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2097 | if (PL_delaymagic) { |
2098 | PL_delaymagic |= DM_EUID; |
79072805 |
2099 | break; /* don't do magic till later */ |
2100 | } |
2101 | #ifdef HAS_SETEUID |
3280af22 |
2102 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
2103 | #else |
2104 | #ifdef HAS_SETREUID |
b28d0864 |
2105 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
2106 | #else |
2107 | #ifdef HAS_SETRESUID |
6b88bc9c |
2108 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
2109 | #else |
b28d0864 |
2110 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2111 | PerlProc_setuid(PL_euid); |
a0d0e21e |
2112 | else { |
e8ee3774 |
2113 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 |
2114 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e |
2115 | } |
79072805 |
2116 | #endif |
2117 | #endif |
85e6fe83 |
2118 | #endif |
d8eceb89 |
2119 | PL_euid = PerlProc_geteuid(); |
3280af22 |
2120 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2121 | break; |
2122 | case '(': |
3280af22 |
2123 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2124 | if (PL_delaymagic) { |
2125 | PL_delaymagic |= DM_RGID; |
79072805 |
2126 | break; /* don't do magic till later */ |
2127 | } |
2128 | #ifdef HAS_SETRGID |
b28d0864 |
2129 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
2130 | #else |
2131 | #ifdef HAS_SETREGID |
3280af22 |
2132 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
2133 | #else |
2134 | #ifdef HAS_SETRESGID |
b28d0864 |
2135 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
2136 | #else |
b28d0864 |
2137 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2138 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
2139 | else { |
d8eceb89 |
2140 | PL_gid = PerlProc_getgid(); |
cea2e8a9 |
2141 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 |
2142 | } |
79072805 |
2143 | #endif |
2144 | #endif |
85e6fe83 |
2145 | #endif |
d8eceb89 |
2146 | PL_gid = PerlProc_getgid(); |
3280af22 |
2147 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2148 | break; |
2149 | case ')': |
5cd24f17 |
2150 | #ifdef HAS_SETGROUPS |
2151 | { |
2d8e6c8d |
2152 | char *p = SvPV(sv, len); |
5cd24f17 |
2153 | Groups_t gary[NGROUPS]; |
2154 | |
5cd24f17 |
2155 | while (isSPACE(*p)) |
2156 | ++p; |
2d4389e4 |
2157 | PL_egid = Atol(p); |
5cd24f17 |
2158 | for (i = 0; i < NGROUPS; ++i) { |
2159 | while (*p && !isSPACE(*p)) |
2160 | ++p; |
2161 | while (isSPACE(*p)) |
2162 | ++p; |
2163 | if (!*p) |
2164 | break; |
2d4389e4 |
2165 | gary[i] = Atol(p); |
5cd24f17 |
2166 | } |
8cc95fdb |
2167 | if (i) |
2168 | (void)setgroups(i, gary); |
5cd24f17 |
2169 | } |
2170 | #else /* HAS_SETGROUPS */ |
b28d0864 |
2171 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
2172 | #endif /* HAS_SETGROUPS */ |
3280af22 |
2173 | if (PL_delaymagic) { |
2174 | PL_delaymagic |= DM_EGID; |
79072805 |
2175 | break; /* don't do magic till later */ |
2176 | } |
2177 | #ifdef HAS_SETEGID |
3280af22 |
2178 | (void)setegid((Gid_t)PL_egid); |
79072805 |
2179 | #else |
2180 | #ifdef HAS_SETREGID |
b28d0864 |
2181 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
2182 | #else |
2183 | #ifdef HAS_SETRESGID |
b28d0864 |
2184 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
2185 | #else |
b28d0864 |
2186 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2187 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
2188 | else { |
d8eceb89 |
2189 | PL_egid = PerlProc_getegid(); |
cea2e8a9 |
2190 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 |
2191 | } |
79072805 |
2192 | #endif |
2193 | #endif |
85e6fe83 |
2194 | #endif |
d8eceb89 |
2195 | PL_egid = PerlProc_getegid(); |
3280af22 |
2196 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2197 | break; |
2198 | case ':': |
2d8e6c8d |
2199 | PL_chopset = SvPV_force(sv,len); |
79072805 |
2200 | break; |
cd39f2b6 |
2201 | #ifndef MACOS_TRADITIONAL |
79072805 |
2202 | case '0': |
4bc88a62 |
2203 | #ifdef HAS_SETPROCTITLE |
2204 | /* The BSDs don't show the argv[] in ps(1) output, they |
2205 | * show a string from the process struct and provide |
2206 | * the setproctitle() routine to manipulate that. */ |
2207 | { |
2208 | s = SvPV(sv, len); |
98b76f99 |
2209 | # if __FreeBSD_version > 410001 |
9aad2c0e |
2210 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 |
2211 | * but not the "(perl) suffix from the ps(1) |
2212 | * output, because that's what ps(1) shows if the |
2213 | * argv[] is modified. */ |
6f2ad931 |
2214 | setproctitle("-%s", s); |
9aad2c0e |
2215 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 |
2216 | /* This doesn't really work if you assume that |
2217 | * $0 = 'foobar'; will wipe out 'perl' from the $0 |
2218 | * because in ps(1) output the result will be like |
2219 | * sprintf("perl: %s (perl)", s) |
2220 | * I guess this is a security feature: |
2221 | * one (a user process) cannot get rid of the original name. |
2222 | * --jhi */ |
2223 | setproctitle("%s", s); |
2224 | # endif |
2225 | } |
2226 | #endif |
3280af22 |
2227 | if (!PL_origalen) { |
2228 | s = PL_origargv[0]; |
79072805 |
2229 | s += strlen(s); |
2230 | /* See if all the arguments are contiguous in memory */ |
3280af22 |
2231 | for (i = 1; i < PL_origargc; i++) { |
2232 | if (PL_origargv[i] == s + 1 |
fb73857a |
2233 | #ifdef OS2 |
6b88bc9c |
2234 | || PL_origargv[i] == s + 2 |
ac27b0f5 |
2235 | #endif |
fb73857a |
2236 | ) |
379c4362 |
2237 | { |
2238 | ++s; |
2239 | s += strlen(s); /* this one is ok too */ |
2240 | } |
fb73857a |
2241 | else |
2242 | break; |
79072805 |
2243 | } |
bbce6d69 |
2244 | /* can grab env area too? */ |
4efc5df6 |
2245 | if (PL_origenviron |
2246 | #ifdef USE_ITHREADS |
2247 | && PL_curinterp == aTHX |
2248 | #endif |
2249 | && (PL_origenviron[0] == s + 1)) |
2250 | { |
66b1d557 |
2251 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
2252 | /* force copy of environment */ |
3280af22 |
2253 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 |
2254 | if (PL_origenviron[i] == s + 1) { |
2255 | ++s; |
2256 | s += strlen(s); |
2257 | } |
fb73857a |
2258 | else |
2259 | break; |
79072805 |
2260 | } |
3280af22 |
2261 | PL_origalen = s - PL_origargv[0]; |
79072805 |
2262 | } |
a0d0e21e |
2263 | s = SvPV_force(sv,len); |
8990e307 |
2264 | i = len; |
eb160463 |
2265 | if (i >= (I32)PL_origalen) { |
3280af22 |
2266 | i = PL_origalen; |
fb73857a |
2267 | /* don't allow system to limit $0 seen by script */ |
2268 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
3280af22 |
2269 | Copy(s, PL_origargv[0], i, char); |
2270 | s = PL_origargv[0]+i; |
fb73857a |
2271 | *s = '\0'; |
79072805 |
2272 | } |
2273 | else { |
3280af22 |
2274 | Copy(s, PL_origargv[0], i, char); |
2275 | s = PL_origargv[0]+i; |
79072805 |
2276 | *s++ = '\0'; |
eb160463 |
2277 | while (++i < (I32)PL_origalen) |
f1c3b2ef |
2278 | *s++ = '\0'; |
3280af22 |
2279 | for (i = 1; i < PL_origargc; i++) |
2280 | PL_origargv[i] = Nullch; |
79072805 |
2281 | } |
2282 | break; |
cd39f2b6 |
2283 | #endif |
4d1ff10f |
2284 | #ifdef USE_5005THREADS |
a863c7d1 |
2285 | case '@': |
38a03e6e |
2286 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
2287 | break; |
4d1ff10f |
2288 | #endif /* USE_5005THREADS */ |
79072805 |
2289 | } |
2290 | return 0; |
2291 | } |
2292 | |
4d1ff10f |
2293 | #ifdef USE_5005THREADS |
f93b4edd |
2294 | int |
864dbfa3 |
2295 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd |
2296 | { |
b900a521 |
2297 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2298 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", |
a674cc95 |
2299 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd |
2300 | if (MgOWNER(mg)) |
cea2e8a9 |
2301 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd |
2302 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2303 | COND_DESTROY(MgCONDP(mg)); |
2304 | return 0; |
2305 | } |
4d1ff10f |
2306 | #endif /* USE_5005THREADS */ |
f93b4edd |
2307 | |
79072805 |
2308 | I32 |
864dbfa3 |
2309 | Perl_whichsig(pTHX_ char *sig) |
79072805 |
2310 | { |
2311 | register char **sigv; |
2312 | |
22c35a8c |
2313 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 |
2314 | if (strEQ(sig,*sigv)) |
22c35a8c |
2315 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 |
2316 | #ifdef SIGCLD |
2317 | if (strEQ(sig,"CHLD")) |
2318 | return SIGCLD; |
2319 | #endif |
2320 | #ifdef SIGCHLD |
2321 | if (strEQ(sig,"CLD")) |
2322 | return SIGCHLD; |
2323 | #endif |
2324 | return 0; |
2325 | } |
2326 | |
df3728a2 |
2327 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 |
2328 | static SV* sig_sv; |
df3728a2 |
2329 | #endif |
84902520 |
2330 | |
ecfc5424 |
2331 | Signal_t |
cea2e8a9 |
2332 | Perl_sighandler(int sig) |
79072805 |
2333 | { |
1018e26f |
2334 | #ifdef PERL_GET_SIG_CONTEXT |
2335 | dTHXa(PERL_GET_SIG_CONTEXT); |
71d280e3 |
2336 | #else |
cea2e8a9 |
2337 | dTHX; |
71d280e3 |
2338 | #endif |
79072805 |
2339 | dSP; |
00d579c5 |
2340 | GV *gv = Nullgv; |
a0d0e21e |
2341 | HV *st; |
b7953727 |
2342 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 |
2343 | CV *cv = Nullcv; |
533c011a |
2344 | OP *myop = PL_op; |
84902520 |
2345 | U32 flags = 0; |
3280af22 |
2346 | XPV *tXpv = PL_Xpv; |
71d280e3 |
2347 | |
3280af22 |
2348 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2349 | flags |= 1; |
3280af22 |
2350 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2351 | flags |= 4; |
3280af22 |
2352 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 |
2353 | flags |= 8; |
3280af22 |
2354 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2355 | flags |= 16; |
2356 | |
727405f8 |
2357 | if (!PL_psig_ptr[sig]) { |
99ef548b |
2358 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 |
2359 | PL_sig_name[sig]); |
2360 | exit(sig); |
2361 | } |
ff0cee69 |
2362 | |
84902520 |
2363 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2364 | infinity, so we fix 4 (in fact 5): */ |
2365 | if (flags & 1) { |
3280af22 |
2366 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee |
2367 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 |
2368 | } |
ac27b0f5 |
2369 | if (flags & 4) |
3280af22 |
2370 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2371 | if (flags & 8) { |
3280af22 |
2372 | PL_retstack_ix++; |
2373 | PL_retstack[PL_retstack_ix] = NULL; |
84902520 |
2374 | } |
2375 | if (flags & 16) |
3280af22 |
2376 | PL_scopestack_ix += 1; |
84902520 |
2377 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 |
2378 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 |
2379 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c |
2380 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 |
2381 | |
a0d0e21e |
2382 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2383 | if (ckWARN(WARN_SIGNAL)) |
9014280d |
2384 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c |
2385 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 |
2386 | : ((cv && CvGV(cv)) |
2387 | ? GvENAME(CvGV(cv)) |
2388 | : "__ANON__"))); |
2389 | goto cleanup; |
79072805 |
2390 | } |
2391 | |
22c35a8c |
2392 | if(PL_psig_name[sig]) { |
2393 | sv = SvREFCNT_inc(PL_psig_name[sig]); |
84902520 |
2394 | flags |= 64; |
df3728a2 |
2395 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 |
2396 | sig_sv = sv; |
df3728a2 |
2397 | #endif |
84902520 |
2398 | } else { |
ff0cee69 |
2399 | sv = sv_newmortal(); |
22c35a8c |
2400 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a |
2401 | } |
e336de0d |
2402 | |
e788e7d3 |
2403 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2404 | PUSHMARK(SP); |
79072805 |
2405 | PUSHs(sv); |
79072805 |
2406 | PUTBACK; |
a0d0e21e |
2407 | |
1b266415 |
2408 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 |
2409 | |
d3acc0f7 |
2410 | POPSTACK; |
1b266415 |
2411 | if (SvTRUE(ERRSV)) { |
1d615522 |
2412 | #ifndef PERL_MICRO |
983dbef6 |
2413 | #ifdef HAS_SIGPROCMASK |
1b266415 |
2414 | /* Handler "died", for example to get out of a restart-able read(). |
2415 | * Before we re-do that on its behalf re-enable the signal which was |
2416 | * blocked by the system when we entered. |
2417 | */ |
2418 | sigset_t set; |
2419 | sigemptyset(&set); |
2420 | sigaddset(&set,sig); |
2421 | sigprocmask(SIG_UNBLOCK, &set, NULL); |
2422 | #else |
2423 | /* Not clear if this will work */ |
2424 | (void)rsignal(sig, SIG_IGN); |
0a8e0eff |
2425 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 |
2426 | #endif |
1d615522 |
2427 | #endif /* !PERL_MICRO */ |
b3fe4827 |
2428 | Perl_die(aTHX_ Nullformat); |
1b266415 |
2429 | } |
00d579c5 |
2430 | cleanup: |
84902520 |
2431 | if (flags & 1) |
3280af22 |
2432 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 |
2433 | if (flags & 4) |
3280af22 |
2434 | PL_markstack_ptr--; |
ac27b0f5 |
2435 | if (flags & 8) |
3280af22 |
2436 | PL_retstack_ix--; |
84902520 |
2437 | if (flags & 16) |
3280af22 |
2438 | PL_scopestack_ix -= 1; |
84902520 |
2439 | if (flags & 64) |
2440 | SvREFCNT_dec(sv); |
533c011a |
2441 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 |
2442 | |
3280af22 |
2443 | PL_Sv = tSv; /* Restore global temporaries. */ |
2444 | PL_Xpv = tXpv; |
79072805 |
2445 | return; |
2446 | } |
4e35701f |
2447 | |
2448 | |
51371543 |
2449 | static void |
acfe0abc |
2450 | restore_magic(pTHX_ void *p) |
51371543 |
2451 | { |
48944bdf |
2452 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 |
2453 | SV* sv = mgs->mgs_sv; |
2454 | |
2455 | if (!sv) |
2456 | return; |
2457 | |
2458 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
2459 | { |
2460 | if (mgs->mgs_flags) |
2461 | SvFLAGS(sv) |= mgs->mgs_flags; |
2462 | else |
2463 | mg_magical(sv); |
2464 | if (SvGMAGICAL(sv)) |
2465 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
2466 | } |
2467 | |
2468 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ |
2469 | |
2470 | /* If we're still on top of the stack, pop us off. (That condition |
2471 | * will be satisfied if restore_magic was called explicitly, but *not* |
2472 | * if it's being called via leave_scope.) |
2473 | * The reason for doing this is that otherwise, things like sv_2cv() |
2474 | * may leave alloc gunk on the savestack, and some code |
2475 | * (e.g. sighandler) doesn't expect that... |
2476 | */ |
2477 | if (PL_savestack_ix == mgs->mgs_ss_ix) |
2478 | { |
2479 | I32 popval = SSPOPINT; |
c76ac1ee |
2480 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 |
2481 | PL_savestack_ix -= 2; |
2482 | popval = SSPOPINT; |
2483 | assert(popval == SAVEt_ALLOC); |
2484 | popval = SSPOPINT; |
2485 | PL_savestack_ix -= popval; |
2486 | } |
2487 | |
2488 | } |
2489 | |
2490 | static void |
acfe0abc |
2491 | unwind_handler_stack(pTHX_ void *p) |
51371543 |
2492 | { |
51371543 |
2493 | U32 flags = *(U32*)p; |
2494 | |
2495 | if (flags & 1) |
2496 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
2497 | /* cxstack_ix-- Not needed, die already unwound it. */ |
df3728a2 |
2498 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 |
2499 | if (flags & 64) |
2500 | SvREFCNT_dec(sig_sv); |
df3728a2 |
2501 | #endif |
51371543 |
2502 | } |
1018e26f |
2503 | |
2504 | |