Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
4c79ee7a |
3 | * Copyright (c) 1991-2003, 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 | |
17aa7f3d |
32 | #ifdef __hpux |
33 | # include <sys/pstat.h> |
34 | #endif |
35 | |
e69880a5 |
36 | Signal_t Perl_csighandler(int sig); |
37 | |
23ada85b |
38 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 |
39 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b |
40 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
41 | #endif |
2e34cc90 |
42 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 |
43 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 |
44 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
45 | #endif |
85b332e2 |
46 | |
acfe0abc |
47 | static void restore_magic(pTHX_ void *p); |
48 | static void unwind_handler_stack(pTHX_ void *p); |
51371543 |
49 | |
c07a80fd |
50 | /* |
51 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
52 | */ |
53 | |
54 | struct magic_state { |
55 | SV* mgs_sv; |
56 | U32 mgs_flags; |
455ece5e |
57 | I32 mgs_ss_ix; |
c07a80fd |
58 | }; |
455ece5e |
59 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e |
60 | |
61 | STATIC void |
8fb26106 |
62 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd |
63 | { |
455ece5e |
64 | MGS* mgs; |
c07a80fd |
65 | assert(SvMAGICAL(sv)); |
765f542d |
66 | #ifdef PERL_COPY_ON_WRITE |
67 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ |
68 | if (SvIsCOW(sv)) |
69 | sv_force_normal(sv); |
70 | #endif |
c07a80fd |
71 | |
685f876f |
72 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e |
73 | |
74 | mgs = SSPTR(mgs_ix, MGS*); |
c07a80fd |
75 | mgs->mgs_sv = sv; |
76 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
455ece5e |
77 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd |
78 | |
79 | SvMAGICAL_off(sv); |
80 | SvREADONLY_off(sv); |
06759ea0 |
81 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
82 | } |
83 | |
954c1994 |
84 | /* |
85 | =for apidoc mg_magical |
86 | |
87 | Turns on the magical status of an SV. See C<sv_magic>. |
88 | |
89 | =cut |
90 | */ |
91 | |
8990e307 |
92 | void |
864dbfa3 |
93 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 |
94 | { |
95 | MAGIC* mg; |
96 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
97 | MGVTBL* vtbl = mg->mg_virtual; |
98 | if (vtbl) { |
2b260de0 |
99 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
100 | SvGMAGICAL_on(sv); |
101 | if (vtbl->svt_set) |
102 | SvSMAGICAL_on(sv); |
2b260de0 |
103 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 |
104 | SvRMAGICAL_on(sv); |
105 | } |
106 | } |
107 | } |
108 | |
954c1994 |
109 | /* |
110 | =for apidoc mg_get |
111 | |
112 | Do magic after a value is retrieved from the SV. See C<sv_magic>. |
113 | |
114 | =cut |
115 | */ |
116 | |
79072805 |
117 | int |
864dbfa3 |
118 | Perl_mg_get(pTHX_ SV *sv) |
79072805 |
119 | { |
ff76feab |
120 | int new = 0; |
121 | MAGIC *newmg, *head, *cur, *mg; |
122 | I32 mgs_ix = SSNEW(sizeof(MGS)); |
463ee0b2 |
123 | |
455ece5e |
124 | save_magic(mgs_ix, sv); |
463ee0b2 |
125 | |
ff76feab |
126 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
127 | list of magic. svt_get() may delete the current entry, add new |
128 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ |
129 | |
130 | newmg = cur = head = mg = SvMAGIC(sv); |
131 | while (mg) { |
132 | MGVTBL *vtbl = mg->mg_virtual; |
133 | |
2b260de0 |
134 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe |
135 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 |
136 | |
137 | /* guard against sv having been freed */ |
138 | if (SvTYPE(sv) == SVTYPEMASK) { |
139 | Perl_croak(aTHX_ "Tied variable freed while still in use"); |
140 | } |
141 | |
ff76feab |
142 | /* Don't restore the flags for this entry if it was deleted. */ |
143 | if (mg->mg_flags & MGf_GSKIP) |
144 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; |
a0d0e21e |
145 | } |
ff76feab |
146 | |
147 | mg = mg->mg_moremagic; |
148 | |
149 | if (new) { |
150 | /* Have we finished with the new entries we saw? Start again |
151 | where we left off (unless there are more new entries). */ |
152 | if (mg == head) { |
153 | new = 0; |
154 | mg = cur; |
155 | head = newmg; |
156 | } |
157 | } |
158 | |
159 | /* Were any new entries added? */ |
160 | if (!new && (newmg = SvMAGIC(sv)) != head) { |
161 | new = 1; |
162 | cur = mg; |
163 | mg = newmg; |
760ac839 |
164 | } |
79072805 |
165 | } |
463ee0b2 |
166 | |
acfe0abc |
167 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 |
168 | return 0; |
169 | } |
170 | |
954c1994 |
171 | /* |
172 | =for apidoc mg_set |
173 | |
174 | Do magic after a value is assigned to the SV. See C<sv_magic>. |
175 | |
176 | =cut |
177 | */ |
178 | |
79072805 |
179 | int |
864dbfa3 |
180 | Perl_mg_set(pTHX_ SV *sv) |
79072805 |
181 | { |
8fb26106 |
182 | I32 mgs_ix; |
79072805 |
183 | MAGIC* mg; |
463ee0b2 |
184 | MAGIC* nextmg; |
185 | |
455ece5e |
186 | mgs_ix = SSNEW(sizeof(MGS)); |
187 | save_magic(mgs_ix, sv); |
463ee0b2 |
188 | |
189 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
190 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
191 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
192 | if (mg->mg_flags & MGf_GSKIP) { |
193 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
455ece5e |
194 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
195 | } |
2b260de0 |
196 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 |
197 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 |
198 | } |
463ee0b2 |
199 | |
acfe0abc |
200 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 |
201 | return 0; |
202 | } |
203 | |
954c1994 |
204 | /* |
205 | =for apidoc mg_length |
206 | |
207 | Report on the SV's length. See C<sv_magic>. |
208 | |
209 | =cut |
210 | */ |
211 | |
79072805 |
212 | U32 |
864dbfa3 |
213 | Perl_mg_length(pTHX_ SV *sv) |
79072805 |
214 | { |
215 | MAGIC* mg; |
463ee0b2 |
216 | STRLEN len; |
463ee0b2 |
217 | |
79072805 |
218 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
219 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
220 | if (vtbl && vtbl->svt_len) { |
8fb26106 |
221 | I32 mgs_ix; |
48e43a1c |
222 | |
455ece5e |
223 | mgs_ix = SSNEW(sizeof(MGS)); |
224 | save_magic(mgs_ix, sv); |
a0d0e21e |
225 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
226 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc |
227 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 |
228 | return len; |
229 | } |
230 | } |
231 | |
7719e241 |
232 | if (DO_UTF8(sv)) |
5636d518 |
233 | { |
234 | U8 *s = (U8*)SvPV(sv, len); |
235 | len = Perl_utf8_length(aTHX_ s, s + len); |
236 | } |
237 | else |
238 | (void)SvPV(sv, len); |
463ee0b2 |
239 | return len; |
79072805 |
240 | } |
241 | |
8fb26106 |
242 | I32 |
864dbfa3 |
243 | Perl_mg_size(pTHX_ SV *sv) |
93965878 |
244 | { |
245 | MAGIC* mg; |
246 | I32 len; |
ac27b0f5 |
247 | |
93965878 |
248 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
249 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
250 | if (vtbl && vtbl->svt_len) { |
8fb26106 |
251 | I32 mgs_ix; |
455ece5e |
252 | |
253 | mgs_ix = SSNEW(sizeof(MGS)); |
254 | save_magic(mgs_ix, sv); |
93965878 |
255 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
256 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc |
257 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 |
258 | return len; |
259 | } |
260 | } |
261 | |
262 | switch(SvTYPE(sv)) { |
263 | case SVt_PVAV: |
264 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
265 | return len; |
266 | case SVt_PVHV: |
267 | /* FIXME */ |
268 | default: |
cea2e8a9 |
269 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 |
270 | break; |
271 | } |
272 | return 0; |
273 | } |
274 | |
954c1994 |
275 | /* |
276 | =for apidoc mg_clear |
277 | |
278 | Clear something magical that the SV represents. See C<sv_magic>. |
279 | |
280 | =cut |
281 | */ |
282 | |
79072805 |
283 | int |
864dbfa3 |
284 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 |
285 | { |
8fb26106 |
286 | I32 mgs_ix; |
79072805 |
287 | MAGIC* mg; |
463ee0b2 |
288 | |
455ece5e |
289 | mgs_ix = SSNEW(sizeof(MGS)); |
290 | save_magic(mgs_ix, sv); |
463ee0b2 |
291 | |
79072805 |
292 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
293 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
294 | /* omit GSKIP -- never set here */ |
727405f8 |
295 | |
2b260de0 |
296 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 |
297 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 |
298 | } |
463ee0b2 |
299 | |
acfe0abc |
300 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 |
301 | return 0; |
302 | } |
303 | |
954c1994 |
304 | /* |
305 | =for apidoc mg_find |
306 | |
307 | Finds the magic pointer for type matching the SV. See C<sv_magic>. |
308 | |
309 | =cut |
310 | */ |
311 | |
93a17b20 |
312 | MAGIC* |
864dbfa3 |
313 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 |
314 | { |
315 | MAGIC* mg; |
3f8f4626 |
316 | if (!sv) |
317 | return 0; |
93a17b20 |
318 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
319 | if (mg->mg_type == type) |
320 | return mg; |
321 | } |
322 | return 0; |
323 | } |
324 | |
954c1994 |
325 | /* |
326 | =for apidoc mg_copy |
327 | |
328 | Copies the magic from one SV to another. See C<sv_magic>. |
329 | |
330 | =cut |
331 | */ |
332 | |
79072805 |
333 | int |
864dbfa3 |
334 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 |
335 | { |
463ee0b2 |
336 | int count = 0; |
79072805 |
337 | MAGIC* mg; |
463ee0b2 |
338 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 |
339 | MGVTBL* vtbl = mg->mg_virtual; |
340 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
341 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); |
342 | } |
343 | else if (isUPPER(mg->mg_type)) { |
33c27489 |
344 | sv_magic(nsv, |
14befaf4 |
345 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
346 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) |
347 | ? sv : mg->mg_obj, |
33c27489 |
348 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
349 | count++; |
79072805 |
350 | } |
79072805 |
351 | } |
463ee0b2 |
352 | return count; |
79072805 |
353 | } |
354 | |
954c1994 |
355 | /* |
356 | =for apidoc mg_free |
357 | |
358 | Free any magic storage used by the SV. See C<sv_magic>. |
359 | |
360 | =cut |
361 | */ |
362 | |
79072805 |
363 | int |
864dbfa3 |
364 | Perl_mg_free(pTHX_ SV *sv) |
79072805 |
365 | { |
366 | MAGIC* mg; |
367 | MAGIC* moremagic; |
368 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
369 | MGVTBL* vtbl = mg->mg_virtual; |
370 | moremagic = mg->mg_moremagic; |
2b260de0 |
371 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 |
372 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 |
373 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 |
374 | if (mg->mg_len > 0) |
88e89b8a |
375 | Safefree(mg->mg_ptr); |
565764a8 |
376 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
377 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 |
378 | } |
b881518d |
379 | if (mg->mg_flags & MGf_REFCOUNTED) |
380 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
381 | Safefree(mg); |
382 | } |
383 | SvMAGIC(sv) = 0; |
384 | return 0; |
385 | } |
386 | |
d460ef45 |
387 | |
79072805 |
388 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
389 | #include <signal.h> |
390 | #endif |
391 | |
942e002e |
392 | U32 |
864dbfa3 |
393 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
394 | { |
6cef1e77 |
395 | register REGEXP *rx; |
6cef1e77 |
396 | |
aaa362c4 |
397 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 |
398 | if (mg->mg_obj) /* @+ */ |
399 | return rx->nparens; |
400 | else /* @- */ |
401 | return rx->lastparen; |
402 | } |
ac27b0f5 |
403 | |
942e002e |
404 | return (U32)-1; |
6cef1e77 |
405 | } |
406 | |
407 | int |
864dbfa3 |
408 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
409 | { |
6cef1e77 |
410 | register I32 paren; |
cf93c79d |
411 | register I32 s; |
6cef1e77 |
412 | register I32 i; |
413 | register REGEXP *rx; |
cf93c79d |
414 | I32 t; |
6cef1e77 |
415 | |
aaa362c4 |
416 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 |
417 | paren = mg->mg_len; |
418 | if (paren < 0) |
419 | return 0; |
eb160463 |
420 | if (paren <= (I32)rx->nparens && |
cf93c79d |
421 | (s = rx->startp[paren]) != -1 && |
422 | (t = rx->endp[paren]) != -1) |
6cef1e77 |
423 | { |
424 | if (mg->mg_obj) /* @+ */ |
cf93c79d |
425 | i = t; |
6cef1e77 |
426 | else /* @- */ |
cf93c79d |
427 | i = s; |
727405f8 |
428 | |
a30b2f1f |
429 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b |
430 | char *b = rx->subbeg; |
0064a8a9 |
431 | if (b) |
432 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); |
1aa99e6b |
433 | } |
0064a8a9 |
434 | |
435 | sv_setiv(sv, i); |
6cef1e77 |
436 | } |
437 | } |
438 | return 0; |
439 | } |
440 | |
e4b89193 |
441 | int |
a29d06ed |
442 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
443 | { |
a29d06ed |
444 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 |
445 | /* NOT REACHED */ |
446 | return 0; |
a29d06ed |
447 | } |
448 | |
93a17b20 |
449 | U32 |
864dbfa3 |
450 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
451 | { |
452 | register I32 paren; |
93a17b20 |
453 | register I32 i; |
d9f97599 |
454 | register REGEXP *rx; |
a197cbdd |
455 | I32 s1, t1; |
93a17b20 |
456 | |
457 | switch (*mg->mg_ptr) { |
458 | case '1': case '2': case '3': case '4': |
459 | case '5': case '6': case '7': case '8': case '9': case '&': |
aaa362c4 |
460 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
461 | |
ffc61ed2 |
462 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 |
463 | getparen: |
eb160463 |
464 | if (paren <= (I32)rx->nparens && |
cf93c79d |
465 | (s1 = rx->startp[paren]) != -1 && |
466 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
467 | { |
cf93c79d |
468 | i = t1 - s1; |
a197cbdd |
469 | getlen: |
a30b2f1f |
470 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
ffc61ed2 |
471 | char *s = rx->subbeg + s1; |
a197cbdd |
472 | char *send = rx->subbeg + t1; |
ffc61ed2 |
473 | |
6d5fa195 |
474 | i = t1 - s1; |
60425c38 |
475 | if (is_utf8_string((U8*)s, i)) |
476 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); |
a197cbdd |
477 | } |
ffc61ed2 |
478 | if (i < 0) |
0844c848 |
479 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 |
480 | return i; |
93a17b20 |
481 | } |
235bddc8 |
482 | else { |
483 | if (ckWARN(WARN_UNINITIALIZED)) |
484 | report_uninit(); |
485 | } |
486 | } |
487 | else { |
488 | if (ckWARN(WARN_UNINITIALIZED)) |
489 | report_uninit(); |
93a17b20 |
490 | } |
748a9306 |
491 | return 0; |
93a17b20 |
492 | case '+': |
aaa362c4 |
493 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 |
494 | paren = rx->lastparen; |
13f57bf8 |
495 | if (paren) |
496 | goto getparen; |
93a17b20 |
497 | } |
748a9306 |
498 | return 0; |
a01268b5 |
499 | case '\016': /* ^N */ |
500 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
501 | paren = rx->lastcloseparen; |
502 | if (paren) |
503 | goto getparen; |
504 | } |
505 | return 0; |
93a17b20 |
506 | case '`': |
aaa362c4 |
507 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
508 | if (rx->startp[0] != -1) { |
509 | i = rx->startp[0]; |
a197cbdd |
510 | if (i > 0) { |
511 | s1 = 0; |
512 | t1 = i; |
513 | goto getlen; |
514 | } |
93a17b20 |
515 | } |
93a17b20 |
516 | } |
748a9306 |
517 | return 0; |
93a17b20 |
518 | case '\'': |
aaa362c4 |
519 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
520 | if (rx->endp[0] != -1) { |
521 | i = rx->sublen - rx->endp[0]; |
a197cbdd |
522 | if (i > 0) { |
523 | s1 = rx->endp[0]; |
524 | t1 = rx->sublen; |
525 | goto getlen; |
526 | } |
93a17b20 |
527 | } |
93a17b20 |
528 | } |
748a9306 |
529 | return 0; |
93a17b20 |
530 | } |
531 | magic_get(sv,mg); |
2d8e6c8d |
532 | if (!SvPOK(sv) && SvNIOK(sv)) { |
533 | STRLEN n_a; |
534 | sv_2pv(sv, &n_a); |
535 | } |
93a17b20 |
536 | if (SvPOK(sv)) |
537 | return SvCUR(sv); |
538 | return 0; |
539 | } |
540 | |
79072805 |
541 | int |
864dbfa3 |
542 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
543 | { |
544 | register I32 paren; |
545 | register char *s; |
546 | register I32 i; |
d9f97599 |
547 | register REGEXP *rx; |
79072805 |
548 | |
549 | switch (*mg->mg_ptr) { |
748a9306 |
550 | case '\001': /* ^A */ |
3280af22 |
551 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
552 | break; |
49460fe6 |
553 | case '\003': /* ^C */ |
554 | sv_setiv(sv, (IV)PL_minus_c); |
555 | break; |
556 | |
79072805 |
557 | case '\004': /* ^D */ |
aea4f609 |
558 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f |
559 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 |
560 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f |
561 | #endif |
79072805 |
562 | break; |
28f23441 |
563 | case '\005': /* ^E */ |
0a378802 |
564 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 |
565 | #ifdef MACOS_TRADITIONAL |
0a378802 |
566 | { |
567 | char msg[256]; |
727405f8 |
568 | |
0a378802 |
569 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 |
570 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 |
571 | } |
727405f8 |
572 | #else |
28f23441 |
573 | #ifdef VMS |
0a378802 |
574 | { |
575 | # include <descrip.h> |
576 | # include <starlet.h> |
577 | char msg[255]; |
578 | $DESCRIPTOR(msgdsc,msg); |
579 | sv_setnv(sv,(NV) vaxc$errno); |
580 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
581 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
582 | else |
583 | sv_setpv(sv,""); |
584 | } |
28f23441 |
585 | #else |
88e89b8a |
586 | #ifdef OS2 |
0a378802 |
587 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
588 | sv_setnv(sv, (NV)errno); |
589 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
590 | } else { |
591 | if (errno != errno_isOS2) { |
592 | int tmp = _syserrno(); |
593 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
594 | Perl_rc = tmp; |
595 | } |
596 | sv_setnv(sv, (NV)Perl_rc); |
597 | sv_setpv(sv, os2error(Perl_rc)); |
598 | } |
88e89b8a |
599 | #else |
22fae026 |
600 | #ifdef WIN32 |
0a378802 |
601 | { |
602 | DWORD dwErr = GetLastError(); |
603 | sv_setnv(sv, (NV)dwErr); |
604 | if (dwErr) |
605 | { |
606 | PerlProc_GetOSError(sv, dwErr); |
607 | } |
608 | else |
609 | sv_setpv(sv, ""); |
610 | SetLastError(dwErr); |
611 | } |
22fae026 |
612 | #else |
0a378802 |
613 | sv_setnv(sv, (NV)errno); |
614 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
28f23441 |
615 | #endif |
88e89b8a |
616 | #endif |
22fae026 |
617 | #endif |
cd39f2b6 |
618 | #endif |
0a378802 |
619 | SvNOK_on(sv); /* what a wonderful hack! */ |
620 | } |
621 | else if (strEQ(mg->mg_ptr+1, "NCODING")) |
622 | sv_setsv(sv, PL_encoding); |
623 | break; |
79072805 |
624 | case '\006': /* ^F */ |
3280af22 |
625 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
626 | break; |
a0d0e21e |
627 | case '\010': /* ^H */ |
3280af22 |
628 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
629 | break; |
9d116dd7 |
630 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
631 | if (PL_inplace) |
632 | sv_setpv(sv, PL_inplace); |
79072805 |
633 | else |
3280af22 |
634 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
635 | break; |
ac27b0f5 |
636 | case '\017': /* ^O & ^OPEN */ |
637 | if (*(mg->mg_ptr+1) == '\0') |
638 | sv_setpv(sv, PL_osname); |
639 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
640 | if (!PL_compiling.cop_io) |
641 | sv_setsv(sv, &PL_sv_undef); |
642 | else { |
643 | sv_setsv(sv, PL_compiling.cop_io); |
644 | } |
645 | } |
28f23441 |
646 | break; |
79072805 |
647 | case '\020': /* ^P */ |
3280af22 |
648 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
649 | break; |
fb73857a |
650 | case '\023': /* ^S */ |
4ffa73a3 |
651 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 |
652 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 |
653 | (void)SvOK_off(sv); |
3280af22 |
654 | else if (PL_in_eval) |
6dc8a9e4 |
655 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a |
656 | else |
657 | sv_setiv(sv, 0); |
d58bf5aa |
658 | } |
fb73857a |
659 | break; |
79072805 |
660 | case '\024': /* ^T */ |
7c36658b |
661 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a |
662 | #ifdef BIG_TIME |
7c36658b |
663 | sv_setnv(sv, PL_basetime); |
88e89b8a |
664 | #else |
7c36658b |
665 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
666 | #endif |
7c36658b |
667 | } |
668 | else if (strEQ(mg->mg_ptr, "\024AINT")) |
9aa05f58 |
669 | sv_setiv(sv, PL_tainting |
670 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) |
671 | : 0); |
7c36658b |
672 | break; |
a05d7ebb |
673 | case '\025': /* $^UNICODE */ |
674 | if (strEQ(mg->mg_ptr, "\025NICODE")) |
675 | sv_setuv(sv, (UV) PL_unicode); |
fde18df1 |
676 | break; |
677 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 |
678 | if (*(mg->mg_ptr+1) == '\0') |
679 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
0a378802 |
680 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 |
681 | if (PL_compiling.cop_warnings == pWARN_NONE || |
682 | PL_compiling.cop_warnings == pWARN_STD) |
4438c4b7 |
683 | { |
684 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
685 | } |
d3a7d8c7 |
686 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca |
687 | /* Get the bit mask for $warnings::Bits{all}, because |
688 | * it could have been extended by warnings::register */ |
689 | SV **bits_all; |
690 | HV *bits=get_hv("warnings::Bits", FALSE); |
691 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { |
692 | sv_setsv(sv, *bits_all); |
693 | } |
694 | else { |
695 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
696 | } |
ac27b0f5 |
697 | } |
4438c4b7 |
698 | else { |
699 | sv_setsv(sv, PL_compiling.cop_warnings); |
ac27b0f5 |
700 | } |
d3a7d8c7 |
701 | SvPOK_only(sv); |
4438c4b7 |
702 | } |
79072805 |
703 | break; |
704 | case '1': case '2': case '3': case '4': |
705 | case '5': case '6': case '7': case '8': case '9': case '&': |
aaa362c4 |
706 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
707 | I32 s1, t1; |
708 | |
a863c7d1 |
709 | /* |
710 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
711 | * XXX Does the new way break anything? |
712 | */ |
ffc61ed2 |
713 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 |
714 | getparen: |
eb160463 |
715 | if (paren <= (I32)rx->nparens && |
cf93c79d |
716 | (s1 = rx->startp[paren]) != -1 && |
717 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
718 | { |
cf93c79d |
719 | i = t1 - s1; |
720 | s = rx->subbeg + s1; |
01ec43d0 |
721 | if (!rx->subbeg) |
c2e66d9e |
722 | break; |
723 | |
13f57bf8 |
724 | getrx: |
748a9306 |
725 | if (i >= 0) { |
cf93c79d |
726 | sv_setpvn(sv, s, i); |
a30b2f1f |
727 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 |
728 | SvUTF8_on(sv); |
729 | else |
730 | SvUTF8_off(sv); |
e9814ee1 |
731 | if (PL_tainting) { |
732 | if (RX_MATCH_TAINTED(rx)) { |
733 | MAGIC* mg = SvMAGIC(sv); |
734 | MAGIC* mgt; |
735 | PL_tainted = 1; |
736 | SvMAGIC(sv) = mg->mg_moremagic; |
737 | SvTAINT(sv); |
738 | if ((mgt = SvMAGIC(sv))) { |
739 | mg->mg_moremagic = mgt; |
740 | SvMAGIC(sv) = mg; |
741 | } |
742 | } else |
743 | SvTAINTED_off(sv); |
744 | } |
748a9306 |
745 | break; |
746 | } |
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))) { |
d9f97599 |
753 | paren = rx->lastparen; |
a0d0e21e |
754 | if (paren) |
755 | goto getparen; |
79072805 |
756 | } |
3280af22 |
757 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
758 | break; |
a01268b5 |
759 | case '\016': /* ^N */ |
760 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
761 | paren = rx->lastcloseparen; |
762 | if (paren) |
763 | goto getparen; |
764 | } |
765 | sv_setsv(sv,&PL_sv_undef); |
766 | break; |
79072805 |
767 | case '`': |
aaa362c4 |
768 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
769 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
770 | i = rx->startp[0]; |
13f57bf8 |
771 | goto getrx; |
79072805 |
772 | } |
79072805 |
773 | } |
3280af22 |
774 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
775 | break; |
776 | case '\'': |
aaa362c4 |
777 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
778 | if (rx->subbeg && rx->endp[0] != -1) { |
779 | s = rx->subbeg + rx->endp[0]; |
780 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
781 | goto getrx; |
79072805 |
782 | } |
79072805 |
783 | } |
3280af22 |
784 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
785 | break; |
786 | case '.': |
787 | #ifndef lint |
3280af22 |
788 | if (GvIO(PL_last_in_gv)) { |
357c8808 |
789 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 |
790 | } |
791 | #endif |
792 | break; |
793 | case '?': |
809a5acc |
794 | { |
809a5acc |
795 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
796 | #ifdef COMPLEX_STATUS |
6b88bc9c |
797 | LvTARGOFF(sv) = PL_statusvalue; |
798 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
799 | #endif |
809a5acc |
800 | } |
79072805 |
801 | break; |
802 | case '^': |
3280af22 |
803 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
804 | if (s) |
805 | sv_setpv(sv,s); |
806 | else { |
3280af22 |
807 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
808 | sv_catpv(sv,"_TOP"); |
809 | } |
810 | break; |
811 | case '~': |
3280af22 |
812 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
813 | if (!s) |
3280af22 |
814 | s = GvENAME(PL_defoutgv); |
79072805 |
815 | sv_setpv(sv,s); |
816 | break; |
817 | #ifndef lint |
818 | case '=': |
3280af22 |
819 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
820 | break; |
821 | case '-': |
3280af22 |
822 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
823 | break; |
824 | case '%': |
3280af22 |
825 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
826 | break; |
827 | #endif |
828 | case ':': |
829 | break; |
830 | case '/': |
831 | break; |
832 | case '[': |
3280af22 |
833 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
834 | break; |
835 | case '|': |
3280af22 |
836 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
837 | break; |
838 | case ',': |
79072805 |
839 | break; |
840 | case '\\': |
b2ce0fda |
841 | if (PL_ors_sv) |
f28098ff |
842 | sv_copypv(sv, PL_ors_sv); |
79072805 |
843 | break; |
844 | case '#': |
3280af22 |
845 | sv_setpv(sv,PL_ofmt); |
79072805 |
846 | break; |
847 | case '!': |
a5f75d66 |
848 | #ifdef VMS |
65202027 |
849 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
850 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
851 | #else |
88e89b8a |
852 | { |
853 | int saveerrno = errno; |
65202027 |
854 | sv_setnv(sv, (NV)errno); |
88e89b8a |
855 | #ifdef OS2 |
ed344e4f |
856 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
857 | sv_setpv(sv, os2error(Perl_rc)); |
88e89b8a |
858 | else |
a5f75d66 |
859 | #endif |
2304df62 |
860 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
861 | errno = saveerrno; |
862 | } |
863 | #endif |
946ec16e |
864 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
865 | break; |
866 | case '<': |
3280af22 |
867 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
868 | break; |
869 | case '>': |
3280af22 |
870 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
871 | break; |
872 | case '(': |
3280af22 |
873 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 |
874 | #ifdef HAS_GETGROUPS |
785fb66b |
875 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 |
876 | #endif |
79072805 |
877 | goto add_groups; |
878 | case ')': |
3280af22 |
879 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 |
880 | #ifdef HAS_GETGROUPS |
785fb66b |
881 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 |
882 | #endif |
79072805 |
883 | add_groups: |
79072805 |
884 | #ifdef HAS_GETGROUPS |
79072805 |
885 | { |
a0d0e21e |
886 | Groups_t gary[NGROUPS]; |
79072805 |
887 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
888 | while (--i >= 0) |
785fb66b |
889 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 |
890 | } |
891 | #endif |
155aba94 |
892 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
893 | break; |
894 | case '*': |
895 | break; |
cd39f2b6 |
896 | #ifndef MACOS_TRADITIONAL |
79072805 |
897 | case '0': |
898 | break; |
cd39f2b6 |
899 | #endif |
79072805 |
900 | } |
a0d0e21e |
901 | return 0; |
79072805 |
902 | } |
903 | |
904 | int |
864dbfa3 |
905 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
906 | { |
907 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
908 | |
909 | if (uf && uf->uf_val) |
24f81a43 |
910 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 |
911 | return 0; |
912 | } |
913 | |
914 | int |
864dbfa3 |
915 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
916 | { |
917 | register char *s; |
88e89b8a |
918 | char *ptr; |
5aabfad6 |
919 | STRLEN len, klen; |
1e422769 |
920 | |
a0d0e21e |
921 | s = SvPV(sv,len); |
5aabfad6 |
922 | ptr = MgPV(mg,klen); |
88e89b8a |
923 | my_setenv(ptr, s); |
1e422769 |
924 | |
a0d0e21e |
925 | #ifdef DYNAMIC_ENV_FETCH |
926 | /* We just undefd an environment var. Is a replacement */ |
927 | /* waiting in the wings? */ |
928 | if (!len) { |
5aabfad6 |
929 | SV **valp; |
6b88bc9c |
930 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 |
931 | s = SvPV(*valp, len); |
a0d0e21e |
932 | } |
933 | #endif |
1e422769 |
934 | |
39e571d4 |
935 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
936 | /* And you'll never guess what the dog had */ |
937 | /* in its mouth... */ |
3280af22 |
938 | if (PL_tainting) { |
1e422769 |
939 | MgTAINTEDDIR_off(mg); |
940 | #ifdef VMS |
5aabfad6 |
941 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
942 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 |
943 | Stat_t sbuf; |
1e422769 |
944 | int i = 0, j = 0; |
945 | |
946 | do { /* DCL$PATH may be a search list */ |
947 | while (1) { /* as may dev portion of any element */ |
948 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
949 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
950 | cando_by_name(S_IWUSR,0,elt) ) { |
951 | MgTAINTEDDIR_on(mg); |
952 | return 0; |
953 | } |
954 | } |
955 | if ((cp = strchr(elt, ':')) != Nullch) |
956 | *cp = '\0'; |
957 | if (my_trnlnm(elt, eltbuf, j++)) |
958 | elt = eltbuf; |
959 | else |
960 | break; |
961 | } |
962 | j = 0; |
963 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
964 | } |
965 | #endif /* VMS */ |
5aabfad6 |
966 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
967 | char *strend = s + len; |
463ee0b2 |
968 | |
969 | while (s < strend) { |
96827780 |
970 | char tmpbuf[256]; |
c623ac67 |
971 | Stat_t st; |
5f74f29c |
972 | I32 i; |
96827780 |
973 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
974 | s, strend, ':', &i); |
463ee0b2 |
975 | s++; |
96827780 |
976 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
977 | || *tmpbuf != '/' |
c6ed36e1 |
978 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
979 | MgTAINTEDDIR_on(mg); |
1e422769 |
980 | return 0; |
981 | } |
463ee0b2 |
982 | } |
79072805 |
983 | } |
984 | } |
39e571d4 |
985 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
986 | |
79072805 |
987 | return 0; |
988 | } |
989 | |
990 | int |
864dbfa3 |
991 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 |
992 | { |
2d8e6c8d |
993 | STRLEN n_a; |
994 | my_setenv(MgPV(mg,n_a),Nullch); |
85e6fe83 |
995 | return 0; |
996 | } |
997 | |
88e89b8a |
998 | int |
864dbfa3 |
999 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a |
1000 | { |
1001 | #if defined(VMS) |
cea2e8a9 |
1002 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a |
1003 | #else |
3280af22 |
1004 | if (PL_localizing) { |
fb73857a |
1005 | HE* entry; |
2d8e6c8d |
1006 | STRLEN n_a; |
fb73857a |
1007 | magic_clear_all_env(sv,mg); |
1008 | hv_iterinit((HV*)sv); |
155aba94 |
1009 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a |
1010 | I32 keylen; |
1011 | my_setenv(hv_iterkey(entry, &keylen), |
2d8e6c8d |
1012 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a |
1013 | } |
1014 | } |
1015 | #endif |
1016 | return 0; |
1017 | } |
1018 | |
1019 | int |
864dbfa3 |
1020 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 |
1021 | { |
ed79a026 |
1022 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 |
1023 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d |
1024 | #else |
4efc5df6 |
1025 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 |
1026 | PerlEnv_clearenv(); |
4efc5df6 |
1027 | # else |
1028 | # ifdef USE_ENVIRON_ARRAY |
1029 | # if defined(USE_ITHREADS) |
1030 | /* only the parent thread can clobber the process environment */ |
1031 | if (PL_curinterp == aTHX) |
1032 | # endif |
1033 | { |
1034 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 |
1035 | I32 i; |
1036 | |
3280af22 |
1037 | if (environ == PL_origenviron) |
f2517201 |
1038 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 |
1039 | else |
1040 | for (i = 0; environ[i]; i++) |
f2517201 |
1041 | safesysfree(environ[i]); |
4efc5df6 |
1042 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 |
1043 | |
66b1d557 |
1044 | environ[0] = Nullch; |
4efc5df6 |
1045 | } |
1046 | # endif /* USE_ENVIRON_ARRAY */ |
052c2dc6 |
1047 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
1048 | #endif /* VMS || EPC */ |
3e3baf6d |
1049 | return 0; |
66b1d557 |
1050 | } |
1051 | |
2e34cc90 |
1052 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1053 | static int sig_handlers_initted = 0; |
1054 | #endif |
7719e241 |
1055 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1056 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1057 | #endif |
2e34cc90 |
1058 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1059 | static int sig_defaulting[SIG_SIZE]; |
1060 | #endif |
85b332e2 |
1061 | |
64ca3a65 |
1062 | #ifndef PERL_MICRO |
2d4fcd5e |
1063 | #ifdef HAS_SIGPROCMASK |
1064 | static void |
1065 | restore_sigmask(pTHX_ SV *save_sv) |
1066 | { |
1067 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); |
1068 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); |
1069 | } |
1070 | #endif |
66b1d557 |
1071 | int |
864dbfa3 |
1072 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
1073 | { |
1074 | I32 i; |
2d8e6c8d |
1075 | STRLEN n_a; |
88e89b8a |
1076 | /* Are we fetching a signal entry? */ |
2d8e6c8d |
1077 | i = whichsig(MgPV(mg,n_a)); |
e02bfb16 |
1078 | if (i > 0) { |
22c35a8c |
1079 | if(PL_psig_ptr[i]) |
1080 | sv_setsv(sv,PL_psig_ptr[i]); |
88e89b8a |
1081 | else { |
85b332e2 |
1082 | Sighandler_t sigstate; |
2e34cc90 |
1083 | sigstate = rsignal_state(i); |
23ada85b |
1084 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 |
1085 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1086 | #endif |
1087 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1088 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 |
1089 | #endif |
88e89b8a |
1090 | /* cache state so we don't fetch it again */ |
ff68c719 |
1091 | if(sigstate == SIG_IGN) |
88e89b8a |
1092 | sv_setpv(sv,"IGNORE"); |
1093 | else |
3280af22 |
1094 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c |
1095 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1096 | SvTEMP_off(sv); |
1097 | } |
1098 | } |
1099 | return 0; |
1100 | } |
1101 | int |
864dbfa3 |
1102 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
1103 | { |
2d4fcd5e |
1104 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1105 | * refactoring might be in order. |
1106 | */ |
1107 | register char *s; |
2d8e6c8d |
1108 | STRLEN n_a; |
2d4fcd5e |
1109 | SV* to_dec; |
1110 | s = MgPV(mg,n_a); |
1111 | if (*s == '_') { |
1112 | SV** svp; |
1113 | if (strEQ(s,"__DIE__")) |
1114 | svp = &PL_diehook; |
1115 | else if (strEQ(s,"__WARN__")) |
1116 | svp = &PL_warnhook; |
1117 | else |
1118 | Perl_croak(aTHX_ "No such hook: %s", s); |
1119 | if (*svp) { |
1120 | to_dec = *svp; |
1121 | *svp = 0; |
1122 | SvREFCNT_dec(to_dec); |
1123 | } |
1124 | } |
1125 | else { |
1126 | I32 i; |
1127 | /* Are we clearing a signal entry? */ |
1128 | i = whichsig(s); |
e02bfb16 |
1129 | if (i > 0) { |
2d4fcd5e |
1130 | #ifdef HAS_SIGPROCMASK |
1131 | sigset_t set, save; |
1132 | SV* save_sv; |
1133 | /* Avoid having the signal arrive at a bad time, if possible. */ |
1134 | sigemptyset(&set); |
1135 | sigaddset(&set,i); |
1136 | sigprocmask(SIG_BLOCK, &set, &save); |
1137 | ENTER; |
1138 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); |
1139 | SAVEFREESV(save_sv); |
1140 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); |
1141 | #endif |
1142 | PERL_ASYNC_CHECK(); |
1143 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1144 | if (!sig_handlers_initted) Perl_csighandler_init(); |
1145 | #endif |
1146 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1147 | sig_defaulting[i] = 1; |
1148 | (void)rsignal(i, &Perl_csighandler); |
1149 | #else |
1150 | (void)rsignal(i, SIG_DFL); |
1151 | #endif |
1152 | if(PL_psig_name[i]) { |
1153 | SvREFCNT_dec(PL_psig_name[i]); |
1154 | PL_psig_name[i]=0; |
1155 | } |
1156 | if(PL_psig_ptr[i]) { |
1157 | to_dec=PL_psig_ptr[i]; |
1158 | PL_psig_ptr[i]=0; |
1159 | LEAVE; |
1160 | SvREFCNT_dec(to_dec); |
1161 | } |
1162 | else |
1163 | LEAVE; |
1164 | } |
88e89b8a |
1165 | } |
1166 | return 0; |
1167 | } |
3d37d572 |
1168 | |
0a8e0eff |
1169 | void |
1170 | Perl_raise_signal(pTHX_ int sig) |
1171 | { |
1172 | /* Set a flag to say this signal is pending */ |
1173 | PL_psig_pend[sig]++; |
1174 | /* And one to say _a_ signal is pending */ |
1175 | PL_sig_pending = 1; |
1176 | } |
1177 | |
1178 | Signal_t |
1179 | Perl_csighandler(int sig) |
1180 | { |
1018e26f |
1181 | #ifdef PERL_GET_SIG_CONTEXT |
1182 | dTHXa(PERL_GET_SIG_CONTEXT); |
1183 | #else |
85b332e2 |
1184 | dTHX; |
1185 | #endif |
23ada85b |
1186 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1187 | (void) rsignal(sig, &Perl_csighandler); |
1188 | if (sig_ignoring[sig]) return; |
1189 | #endif |
2e34cc90 |
1190 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 |
1191 | if (sig_defaulting[sig]) |
2e34cc90 |
1192 | #ifdef KILL_BY_SIGPRC |
1193 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); |
1194 | #else |
1195 | exit(1); |
1196 | #endif |
1197 | #endif |
4ffa73a3 |
1198 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1199 | /* Call the perl level handler now-- |
1200 | * with risk we may be in malloc() etc. */ |
1201 | (*PL_sighandlerp)(sig); |
1202 | else |
1203 | Perl_raise_signal(aTHX_ sig); |
0a8e0eff |
1204 | } |
1205 | |
2e34cc90 |
1206 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1207 | void |
1208 | Perl_csighandler_init(void) |
1209 | { |
1210 | int sig; |
1211 | if (sig_handlers_initted) return; |
1212 | |
1213 | for (sig = 1; sig < SIG_SIZE; sig++) { |
1214 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
218fdd94 |
1215 | dTHX; |
2e34cc90 |
1216 | sig_defaulting[sig] = 1; |
1217 | (void) rsignal(sig, &Perl_csighandler); |
1218 | #endif |
1219 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
1220 | sig_ignoring[sig] = 0; |
1221 | #endif |
1222 | } |
1223 | sig_handlers_initted = 1; |
1224 | } |
1225 | #endif |
1226 | |
0a8e0eff |
1227 | void |
1228 | Perl_despatch_signals(pTHX) |
1229 | { |
1230 | int sig; |
1231 | PL_sig_pending = 0; |
1232 | for (sig = 1; sig < SIG_SIZE; sig++) { |
1233 | if (PL_psig_pend[sig]) { |
25da4428 |
1234 | PERL_BLOCKSIG_ADD(set, sig); |
1235 | PL_psig_pend[sig] = 0; |
1236 | PERL_BLOCKSIG_BLOCK(set); |
f5203343 |
1237 | (*PL_sighandlerp)(sig); |
25da4428 |
1238 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff |
1239 | } |
1240 | } |
1241 | } |
1242 | |
85e6fe83 |
1243 | int |
864dbfa3 |
1244 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1245 | { |
1246 | register char *s; |
1247 | I32 i; |
b7953727 |
1248 | SV** svp = 0; |
2d4fcd5e |
1249 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1250 | * effects (due to closures). We must make sure that the new disposition |
1251 | * is in place before it is called. |
1252 | */ |
1253 | SV* to_dec = 0; |
e72dc28c |
1254 | STRLEN len; |
2d4fcd5e |
1255 | #ifdef HAS_SIGPROCMASK |
1256 | sigset_t set, save; |
1257 | SV* save_sv; |
1258 | #endif |
a0d0e21e |
1259 | |
e72dc28c |
1260 | s = MgPV(mg,len); |
748a9306 |
1261 | if (*s == '_') { |
1262 | if (strEQ(s,"__DIE__")) |
3280af22 |
1263 | svp = &PL_diehook; |
748a9306 |
1264 | else if (strEQ(s,"__WARN__")) |
3280af22 |
1265 | svp = &PL_warnhook; |
748a9306 |
1266 | else |
cea2e8a9 |
1267 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 |
1268 | i = 0; |
4633a7c4 |
1269 | if (*svp) { |
2d4fcd5e |
1270 | to_dec = *svp; |
4633a7c4 |
1271 | *svp = 0; |
1272 | } |
748a9306 |
1273 | } |
1274 | else { |
1275 | i = whichsig(s); /* ...no, a brick */ |
e02bfb16 |
1276 | if (i < 0) { |
e476b1b5 |
1277 | if (ckWARN(WARN_SIGNAL)) |
9014280d |
1278 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 |
1279 | return 0; |
1280 | } |
2d4fcd5e |
1281 | #ifdef HAS_SIGPROCMASK |
1282 | /* Avoid having the signal arrive at a bad time, if possible. */ |
1283 | sigemptyset(&set); |
1284 | sigaddset(&set,i); |
1285 | sigprocmask(SIG_BLOCK, &set, &save); |
1286 | ENTER; |
1287 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); |
1288 | SAVEFREESV(save_sv); |
1289 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); |
1290 | #endif |
1291 | PERL_ASYNC_CHECK(); |
2e34cc90 |
1292 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1293 | if (!sig_handlers_initted) Perl_csighandler_init(); |
1294 | #endif |
23ada85b |
1295 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1296 | sig_ignoring[i] = 0; |
1297 | #endif |
2e34cc90 |
1298 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
2d4fcd5e |
1299 | sig_defaulting[i] = 0; |
2e34cc90 |
1300 | #endif |
22c35a8c |
1301 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e |
1302 | to_dec = PL_psig_ptr[i]; |
22c35a8c |
1303 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1304 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c |
1305 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c |
1306 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 |
1307 | } |
a0d0e21e |
1308 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e |
1309 | if (i) { |
0a8e0eff |
1310 | (void)rsignal(i, &Perl_csighandler); |
2d4fcd5e |
1311 | #ifdef HAS_SIGPROCMASK |
1312 | LEAVE; |
1313 | #endif |
1314 | } |
748a9306 |
1315 | else |
1316 | *svp = SvREFCNT_inc(sv); |
2d4fcd5e |
1317 | if(to_dec) |
1318 | SvREFCNT_dec(to_dec); |
a0d0e21e |
1319 | return 0; |
1320 | } |
e72dc28c |
1321 | s = SvPV_force(sv,len); |
748a9306 |
1322 | if (strEQ(s,"IGNORE")) { |
85b332e2 |
1323 | if (i) { |
23ada85b |
1324 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1325 | sig_ignoring[i] = 1; |
1326 | (void)rsignal(i, &Perl_csighandler); |
1327 | #else |
ff68c719 |
1328 | (void)rsignal(i, SIG_IGN); |
85b332e2 |
1329 | #endif |
2d4fcd5e |
1330 | } |
748a9306 |
1331 | } |
1332 | else if (strEQ(s,"DEFAULT") || !*s) { |
1333 | if (i) |
2e34cc90 |
1334 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1335 | { |
1336 | sig_defaulting[i] = 1; |
1337 | (void)rsignal(i, &Perl_csighandler); |
1338 | } |
1339 | #else |
ff68c719 |
1340 | (void)rsignal(i, SIG_DFL); |
2e34cc90 |
1341 | #endif |
748a9306 |
1342 | } |
79072805 |
1343 | else { |
5aabfad6 |
1344 | /* |
1345 | * We should warn if HINT_STRICT_REFS, but without |
1346 | * access to a known hint bit in a known OP, we can't |
1347 | * tell whether HINT_STRICT_REFS is in force or not. |
1348 | */ |
46fc3d4c |
1349 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c |
1350 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 |
1351 | if (i) |
0a8e0eff |
1352 | (void)rsignal(i, &Perl_csighandler); |
748a9306 |
1353 | else |
1354 | *svp = SvREFCNT_inc(sv); |
79072805 |
1355 | } |
2d4fcd5e |
1356 | #ifdef HAS_SIGPROCMASK |
1357 | if(i) |
1358 | LEAVE; |
1359 | #endif |
1360 | if(to_dec) |
1361 | SvREFCNT_dec(to_dec); |
79072805 |
1362 | return 0; |
1363 | } |
64ca3a65 |
1364 | #endif /* !PERL_MICRO */ |
79072805 |
1365 | |
1366 | int |
864dbfa3 |
1367 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1368 | { |
3280af22 |
1369 | PL_sub_generation++; |
463ee0b2 |
1370 | return 0; |
1371 | } |
1372 | |
1373 | int |
864dbfa3 |
1374 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1375 | { |
a0d0e21e |
1376 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
1377 | PL_amagic_generation++; |
463ee0b2 |
1378 | |
a0d0e21e |
1379 | return 0; |
1380 | } |
463ee0b2 |
1381 | |
946ec16e |
1382 | int |
864dbfa3 |
1383 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1384 | { |
1385 | HV *hv = (HV*)LvTARG(sv); |
6ff81951 |
1386 | I32 i = 0; |
7719e241 |
1387 | |
6ff81951 |
1388 | if (hv) { |
497b47a8 |
1389 | (void) hv_iterinit(hv); |
1390 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
1391 | i = HvKEYS(hv); |
1392 | else { |
1393 | while (hv_iternext(hv)) |
1394 | i++; |
1395 | } |
6ff81951 |
1396 | } |
1397 | |
1398 | sv_setiv(sv, (IV)i); |
1399 | return 0; |
1400 | } |
1401 | |
1402 | int |
864dbfa3 |
1403 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e |
1404 | { |
1405 | if (LvTARG(sv)) { |
1406 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1407 | } |
1408 | return 0; |
ac27b0f5 |
1409 | } |
946ec16e |
1410 | |
e336de0d |
1411 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1412 | STATIC int |
cea2e8a9 |
1413 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1414 | { |
1415 | dSP; |
463ee0b2 |
1416 | |
924508f0 |
1417 | PUSHMARK(SP); |
1418 | EXTEND(SP, n); |
33c27489 |
1419 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 |
1420 | if (n > 1) { |
93965878 |
1421 | if (mg->mg_ptr) { |
565764a8 |
1422 | if (mg->mg_len >= 0) |
79cb57f6 |
1423 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 |
1424 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1425 | PUSHs((SV*)mg->mg_ptr); |
1426 | } |
14befaf4 |
1427 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 |
1428 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1429 | } |
1430 | } |
1431 | if (n > 2) { |
1432 | PUSHs(val); |
88e89b8a |
1433 | } |
463ee0b2 |
1434 | PUTBACK; |
1435 | |
864dbfa3 |
1436 | return call_method(meth, flags); |
946ec16e |
1437 | } |
1438 | |
76e3520e |
1439 | STATIC int |
cea2e8a9 |
1440 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1441 | { |
1442 | dSP; |
463ee0b2 |
1443 | |
a0d0e21e |
1444 | ENTER; |
1445 | SAVETMPS; |
e788e7d3 |
1446 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1447 | |
33c27489 |
1448 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1449 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1450 | } |
463ee0b2 |
1451 | |
d3acc0f7 |
1452 | POPSTACK; |
a0d0e21e |
1453 | FREETMPS; |
1454 | LEAVE; |
1455 | return 0; |
1456 | } |
463ee0b2 |
1457 | |
a0d0e21e |
1458 | int |
864dbfa3 |
1459 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1460 | { |
1461 | magic_methpack(sv,mg,"FETCH"); |
1462 | if (mg->mg_ptr) |
1463 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1464 | return 0; |
1465 | } |
1466 | |
1467 | int |
864dbfa3 |
1468 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d |
1469 | { |
1470 | dSP; |
a60c0954 |
1471 | ENTER; |
e788e7d3 |
1472 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1473 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1474 | POPSTACK; |
a60c0954 |
1475 | LEAVE; |
463ee0b2 |
1476 | return 0; |
1477 | } |
1478 | |
1479 | int |
864dbfa3 |
1480 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1481 | { |
a0d0e21e |
1482 | return magic_methpack(sv,mg,"DELETE"); |
1483 | } |
463ee0b2 |
1484 | |
93965878 |
1485 | |
1486 | U32 |
864dbfa3 |
1487 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 |
1488 | { |
e336de0d |
1489 | dSP; |
93965878 |
1490 | U32 retval = 0; |
1491 | |
1492 | ENTER; |
1493 | SAVETMPS; |
e788e7d3 |
1494 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1495 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1496 | sv = *PL_stack_sp--; |
a60c0954 |
1497 | retval = (U32) SvIV(sv)-1; |
93965878 |
1498 | } |
d3acc0f7 |
1499 | POPSTACK; |
93965878 |
1500 | FREETMPS; |
1501 | LEAVE; |
1502 | return retval; |
1503 | } |
1504 | |
cea2e8a9 |
1505 | int |
1506 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1507 | { |
1508 | dSP; |
463ee0b2 |
1509 | |
e336de0d |
1510 | ENTER; |
e788e7d3 |
1511 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1512 | PUSHMARK(SP); |
33c27489 |
1513 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1514 | PUTBACK; |
864dbfa3 |
1515 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1516 | POPSTACK; |
a60c0954 |
1517 | LEAVE; |
463ee0b2 |
1518 | return 0; |
1519 | } |
1520 | |
1521 | int |
864dbfa3 |
1522 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1523 | { |
463ee0b2 |
1524 | dSP; |
dff6d3cd |
1525 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1526 | |
1527 | ENTER; |
a0d0e21e |
1528 | SAVETMPS; |
e788e7d3 |
1529 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1530 | PUSHMARK(SP); |
1531 | EXTEND(SP, 2); |
33c27489 |
1532 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1533 | if (SvOK(key)) |
1534 | PUSHs(key); |
1535 | PUTBACK; |
1536 | |
864dbfa3 |
1537 | if (call_method(meth, G_SCALAR)) |
3280af22 |
1538 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1539 | |
d3acc0f7 |
1540 | POPSTACK; |
a0d0e21e |
1541 | FREETMPS; |
1542 | LEAVE; |
79072805 |
1543 | return 0; |
1544 | } |
1545 | |
1546 | int |
864dbfa3 |
1547 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1548 | { |
1549 | return magic_methpack(sv,mg,"EXISTS"); |
ac27b0f5 |
1550 | } |
a0d0e21e |
1551 | |
1552 | int |
864dbfa3 |
1553 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1554 | { |
1555 | OP *o; |
1556 | I32 i; |
1557 | GV* gv; |
1558 | SV** svp; |
2d8e6c8d |
1559 | STRLEN n_a; |
79072805 |
1560 | |
3280af22 |
1561 | gv = PL_DBline; |
79072805 |
1562 | i = SvTRUE(sv); |
188ea221 |
1563 | svp = av_fetch(GvAV(gv), |
2d8e6c8d |
1564 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 |
1565 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1566 | /* set or clear breakpoint in the relevant control op */ |
1567 | if (i) |
1568 | o->op_flags |= OPf_SPECIAL; |
1569 | else |
1570 | o->op_flags &= ~OPf_SPECIAL; |
1571 | } |
79072805 |
1572 | return 0; |
1573 | } |
1574 | |
1575 | int |
864dbfa3 |
1576 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1577 | { |
3280af22 |
1578 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 |
1579 | return 0; |
1580 | } |
1581 | |
1582 | int |
864dbfa3 |
1583 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1584 | { |
3280af22 |
1585 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e |
1586 | return 0; |
1587 | } |
1588 | |
1589 | int |
864dbfa3 |
1590 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1591 | { |
1592 | SV* lsv = LvTARG(sv); |
ac27b0f5 |
1593 | |
a0d0e21e |
1594 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 |
1595 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 |
1596 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 |
1597 | I32 i = mg->mg_len; |
7e2040f0 |
1598 | if (DO_UTF8(lsv)) |
a0ed51b3 |
1599 | sv_pos_b2u(lsv, &i); |
1600 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1601 | return 0; |
1602 | } |
1603 | } |
1604 | (void)SvOK_off(sv); |
1605 | return 0; |
1606 | } |
1607 | |
1608 | int |
864dbfa3 |
1609 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1610 | { |
1611 | SV* lsv = LvTARG(sv); |
1612 | SSize_t pos; |
1613 | STRLEN len; |
c00206c8 |
1614 | STRLEN ulen = 0; |
a0d0e21e |
1615 | |
1616 | mg = 0; |
ac27b0f5 |
1617 | |
a0d0e21e |
1618 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 |
1619 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1620 | if (!mg) { |
1621 | if (!SvOK(sv)) |
1622 | return 0; |
14befaf4 |
1623 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1624 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1625 | } |
1626 | else if (!SvOK(sv)) { |
565764a8 |
1627 | mg->mg_len = -1; |
a0d0e21e |
1628 | return 0; |
1629 | } |
1630 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1631 | |
c485e607 |
1632 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1633 | |
7e2040f0 |
1634 | if (DO_UTF8(lsv)) { |
a0ed51b3 |
1635 | ulen = sv_len_utf8(lsv); |
1636 | if (ulen) |
1637 | len = ulen; |
a0ed51b3 |
1638 | } |
1639 | |
a0d0e21e |
1640 | if (pos < 0) { |
1641 | pos += len; |
1642 | if (pos < 0) |
1643 | pos = 0; |
1644 | } |
eb160463 |
1645 | else if (pos > (SSize_t)len) |
a0d0e21e |
1646 | pos = len; |
a0ed51b3 |
1647 | |
1648 | if (ulen) { |
1649 | I32 p = pos; |
1650 | sv_pos_u2b(lsv, &p, 0); |
1651 | pos = p; |
1652 | } |
727405f8 |
1653 | |
565764a8 |
1654 | mg->mg_len = pos; |
71be2cbc |
1655 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1656 | |
79072805 |
1657 | return 0; |
1658 | } |
1659 | |
1660 | int |
864dbfa3 |
1661 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1662 | { |
8646b087 |
1663 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1664 | SvFAKE_off(sv); |
946ec16e |
1665 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1666 | SvFAKE_on(sv); |
1667 | } |
1668 | else |
946ec16e |
1669 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1670 | return 0; |
1671 | } |
1672 | |
1673 | int |
864dbfa3 |
1674 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1675 | { |
1676 | register char *s; |
1677 | GV* gv; |
2d8e6c8d |
1678 | STRLEN n_a; |
79072805 |
1679 | |
1680 | if (!SvOK(sv)) |
1681 | return 0; |
2d8e6c8d |
1682 | s = SvPV(sv, n_a); |
79072805 |
1683 | if (*s == '*' && s[1]) |
1684 | s++; |
85e6fe83 |
1685 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1686 | if (sv == (SV*)gv) |
1687 | return 0; |
1688 | if (GvGP(sv)) |
88e89b8a |
1689 | gp_free((GV*)sv); |
79072805 |
1690 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1691 | return 0; |
1692 | } |
1693 | |
1694 | int |
864dbfa3 |
1695 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1696 | { |
1697 | STRLEN len; |
1698 | SV *lsv = LvTARG(sv); |
1699 | char *tmps = SvPV(lsv,len); |
1700 | I32 offs = LvTARGOFF(sv); |
1701 | I32 rem = LvTARGLEN(sv); |
1702 | |
9aa983d2 |
1703 | if (SvUTF8(lsv)) |
1704 | sv_pos_u2b(lsv, &offs, &rem); |
eb160463 |
1705 | if (offs > (I32)len) |
6ff81951 |
1706 | offs = len; |
eb160463 |
1707 | if (rem + offs > (I32)len) |
6ff81951 |
1708 | rem = len - offs; |
1709 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
9aa983d2 |
1710 | if (SvUTF8(lsv)) |
2ef4b674 |
1711 | SvUTF8_on(sv); |
6ff81951 |
1712 | return 0; |
1713 | } |
1714 | |
1715 | int |
864dbfa3 |
1716 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1717 | { |
9aa983d2 |
1718 | STRLEN len; |
1719 | char *tmps = SvPV(sv, len); |
1720 | SV *lsv = LvTARG(sv); |
1721 | I32 lvoff = LvTARGOFF(sv); |
1722 | I32 lvlen = LvTARGLEN(sv); |
075a4a2b |
1723 | |
1aa99e6b |
1724 | if (DO_UTF8(sv)) { |
9aa983d2 |
1725 | sv_utf8_upgrade(lsv); |
1726 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
1727 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1728 | SvUTF8_on(lsv); |
1729 | } |
9bf12eaf |
1730 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 |
1731 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 |
1732 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 |
1733 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1734 | Safefree(tmps); |
1aa99e6b |
1735 | } |
1736 | else |
9aa983d2 |
1737 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b |
1738 | |
79072805 |
1739 | return 0; |
1740 | } |
1741 | |
1742 | int |
864dbfa3 |
1743 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1744 | { |
565764a8 |
1745 | TAINT_IF((mg->mg_len & 1) || |
155aba94 |
1746 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 |
1747 | return 0; |
1748 | } |
1749 | |
1750 | int |
864dbfa3 |
1751 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1752 | { |
3280af22 |
1753 | if (PL_localizing) { |
1754 | if (PL_localizing == 1) |
565764a8 |
1755 | mg->mg_len <<= 1; |
748a9306 |
1756 | else |
565764a8 |
1757 | mg->mg_len >>= 1; |
a0d0e21e |
1758 | } |
3280af22 |
1759 | else if (PL_tainted) |
565764a8 |
1760 | mg->mg_len |= 1; |
748a9306 |
1761 | else |
565764a8 |
1762 | mg->mg_len &= ~1; |
463ee0b2 |
1763 | return 0; |
1764 | } |
1765 | |
1766 | int |
864dbfa3 |
1767 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1768 | { |
1769 | SV *lsv = LvTARG(sv); |
6ff81951 |
1770 | |
1771 | if (!lsv) { |
155aba94 |
1772 | (void)SvOK_off(sv); |
6ff81951 |
1773 | return 0; |
1774 | } |
6ff81951 |
1775 | |
81e118e0 |
1776 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 |
1777 | return 0; |
1778 | } |
1779 | |
1780 | int |
864dbfa3 |
1781 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1782 | { |
1783 | do_vecset(sv); /* XXX slurp this routine */ |
1784 | return 0; |
1785 | } |
1786 | |
1787 | int |
864dbfa3 |
1788 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc |
1789 | { |
71be2cbc |
1790 | SV *targ = Nullsv; |
5f05dabc |
1791 | if (LvTARGLEN(sv)) { |
68dc0745 |
1792 | if (mg->mg_obj) { |
74e13ce4 |
1793 | SV *ahv = LvTARG(sv); |
6d822dc4 |
1794 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1795 | if (he) |
1796 | targ = HeVAL(he); |
68dc0745 |
1797 | } |
1798 | else { |
3c78fafa |
1799 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1800 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1801 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1802 | } |
3280af22 |
1803 | if (targ && targ != &PL_sv_undef) { |
68dc0745 |
1804 | /* somebody else defined it for us */ |
1805 | SvREFCNT_dec(LvTARG(sv)); |
1806 | LvTARG(sv) = SvREFCNT_inc(targ); |
1807 | LvTARGLEN(sv) = 0; |
1808 | SvREFCNT_dec(mg->mg_obj); |
1809 | mg->mg_obj = Nullsv; |
1810 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1811 | } |
5f05dabc |
1812 | } |
71be2cbc |
1813 | else |
1814 | targ = LvTARG(sv); |
3280af22 |
1815 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
1816 | return 0; |
1817 | } |
1818 | |
1819 | int |
864dbfa3 |
1820 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc |
1821 | { |
1822 | if (LvTARGLEN(sv)) |
68dc0745 |
1823 | vivify_defelem(sv); |
1824 | if (LvTARG(sv)) { |
5f05dabc |
1825 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1826 | SvSETMAGIC(LvTARG(sv)); |
1827 | } |
5f05dabc |
1828 | return 0; |
1829 | } |
1830 | |
71be2cbc |
1831 | void |
864dbfa3 |
1832 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc |
1833 | { |
74e13ce4 |
1834 | MAGIC *mg; |
1835 | SV *value = Nullsv; |
71be2cbc |
1836 | |
14befaf4 |
1837 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc |
1838 | return; |
68dc0745 |
1839 | if (mg->mg_obj) { |
74e13ce4 |
1840 | SV *ahv = LvTARG(sv); |
2d8e6c8d |
1841 | STRLEN n_a; |
6d822dc4 |
1842 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1843 | if (he) |
1844 | value = HeVAL(he); |
3280af22 |
1845 | if (!value || value == &PL_sv_undef) |
cea2e8a9 |
1846 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc |
1847 | } |
68dc0745 |
1848 | else { |
1849 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1850 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1851 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1852 | else { |
1853 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
1854 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 |
1855 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 |
1856 | } |
1857 | } |
3e3baf6d |
1858 | (void)SvREFCNT_inc(value); |
68dc0745 |
1859 | SvREFCNT_dec(LvTARG(sv)); |
1860 | LvTARG(sv) = value; |
71be2cbc |
1861 | LvTARGLEN(sv) = 0; |
68dc0745 |
1862 | SvREFCNT_dec(mg->mg_obj); |
1863 | mg->mg_obj = Nullsv; |
1864 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1865 | } |
1866 | |
1867 | int |
864dbfa3 |
1868 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 |
1869 | { |
1870 | AV *av = (AV*)mg->mg_obj; |
1871 | SV **svp = AvARRAY(av); |
1872 | I32 i = AvFILLp(av); |
1873 | while (i >= 0) { |
1874 | if (svp[i] && svp[i] != &PL_sv_undef) { |
1875 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 |
1876 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 |
1877 | /* XXX Should we check that it hasn't changed? */ |
1878 | SvRV(svp[i]) = 0; |
155aba94 |
1879 | (void)SvOK_off(svp[i]); |
810b8aa5 |
1880 | SvWEAKREF_off(svp[i]); |
1881 | svp[i] = &PL_sv_undef; |
1882 | } |
1883 | i--; |
1884 | } |
1885 | return 0; |
1886 | } |
1887 | |
1888 | int |
864dbfa3 |
1889 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
1890 | { |
565764a8 |
1891 | mg->mg_len = -1; |
c6496cc7 |
1892 | SvSCREAM_off(sv); |
93a17b20 |
1893 | return 0; |
1894 | } |
1895 | |
1896 | int |
864dbfa3 |
1897 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1898 | { |
14befaf4 |
1899 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 |
1900 | SvVALID_off(sv); |
1901 | return 0; |
1902 | } |
1903 | |
1904 | int |
864dbfa3 |
1905 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff |
1906 | { |
14befaf4 |
1907 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff |
1908 | SvCOMPILED_off(sv); |
1909 | return 0; |
1910 | } |
1911 | |
1912 | int |
864dbfa3 |
1913 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1914 | { |
1915 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1916 | |
1917 | if (uf && uf->uf_set) |
24f81a43 |
1918 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 |
1919 | return 0; |
1920 | } |
1921 | |
c277df42 |
1922 | int |
faf82a0b |
1923 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
1924 | { |
1925 | sv_unmagic(sv, PERL_MAGIC_qr); |
1926 | return 0; |
1927 | } |
1928 | |
1929 | int |
864dbfa3 |
1930 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 |
1931 | { |
1932 | regexp *re = (regexp *)mg->mg_obj; |
1933 | ReREFCNT_dec(re); |
1934 | return 0; |
1935 | } |
1936 | |
7a4c00b4 |
1937 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1938 | int |
864dbfa3 |
1939 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 |
1940 | { |
1941 | /* |
838b5b74 |
1942 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 |
1943 | * and vanished with a faint plop. |
1944 | */ |
7a4c00b4 |
1945 | if (mg->mg_ptr) { |
1946 | Safefree(mg->mg_ptr); |
1947 | mg->mg_ptr = NULL; |
565764a8 |
1948 | mg->mg_len = -1; |
7a4c00b4 |
1949 | } |
bbce6d69 |
1950 | return 0; |
1951 | } |
7a4c00b4 |
1952 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1953 | |
7e8c5dac |
1954 | /* Just clear the UTF-8 cache data. */ |
1955 | int |
1956 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) |
1957 | { |
1958 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
1959 | mg->mg_ptr = 0; |
1960 | mg->mg_len = -1; /* The mg_len holds the len cache. */ |
1961 | return 0; |
1962 | } |
1963 | |
bbce6d69 |
1964 | int |
864dbfa3 |
1965 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1966 | { |
1967 | register char *s; |
1968 | I32 i; |
8990e307 |
1969 | STRLEN len; |
79072805 |
1970 | switch (*mg->mg_ptr) { |
748a9306 |
1971 | case '\001': /* ^A */ |
3280af22 |
1972 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
1973 | break; |
49460fe6 |
1974 | case '\003': /* ^C */ |
eb160463 |
1975 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 |
1976 | break; |
1977 | |
79072805 |
1978 | case '\004': /* ^D */ |
aea4f609 |
1979 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 |
1980 | DEBUG_x(dump_all()); |
1981 | break; |
28f23441 |
1982 | case '\005': /* ^E */ |
d0063567 |
1983 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 |
1984 | #ifdef MACOS_TRADITIONAL |
d0063567 |
1985 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 |
1986 | #else |
cd39f2b6 |
1987 | # ifdef VMS |
d0063567 |
1988 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf |
1989 | # else |
cd39f2b6 |
1990 | # ifdef WIN32 |
d0063567 |
1991 | SetLastError( SvIV(sv) ); |
cd39f2b6 |
1992 | # else |
9fed8b87 |
1993 | # ifdef OS2 |
d0063567 |
1994 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 |
1995 | # else |
d0063567 |
1996 | /* will anyone ever use this? */ |
1997 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
cd39f2b6 |
1998 | # endif |
048c1ddf |
1999 | # endif |
2000 | # endif |
22fae026 |
2001 | #endif |
d0063567 |
2002 | } |
2003 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { |
2004 | if (PL_encoding) |
2005 | SvREFCNT_dec(PL_encoding); |
2006 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
2007 | PL_encoding = newSVsv(sv); |
2008 | } |
2009 | else { |
2010 | PL_encoding = Nullsv; |
2011 | } |
2012 | } |
2013 | break; |
79072805 |
2014 | case '\006': /* ^F */ |
3280af22 |
2015 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
2016 | break; |
a0d0e21e |
2017 | case '\010': /* ^H */ |
3280af22 |
2018 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
2019 | break; |
9d116dd7 |
2020 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
2021 | if (PL_inplace) |
2022 | Safefree(PL_inplace); |
79072805 |
2023 | if (SvOK(sv)) |
2d8e6c8d |
2024 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 |
2025 | else |
3280af22 |
2026 | PL_inplace = Nullch; |
79072805 |
2027 | break; |
28f23441 |
2028 | case '\017': /* ^O */ |
ac27b0f5 |
2029 | if (*(mg->mg_ptr+1) == '\0') { |
2030 | if (PL_osname) |
2031 | Safefree(PL_osname); |
2032 | if (SvOK(sv)) |
2033 | PL_osname = savepv(SvPV(sv,len)); |
2034 | else |
2035 | PL_osname = Nullch; |
2036 | } |
2037 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
2038 | if (!PL_compiling.cop_io) |
2039 | PL_compiling.cop_io = newSVsv(sv); |
2040 | else |
2041 | sv_setsv(PL_compiling.cop_io,sv); |
2042 | } |
28f23441 |
2043 | break; |
79072805 |
2044 | case '\020': /* ^P */ |
3280af22 |
2045 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e |
2046 | if (PL_perldb && !PL_DBsingle) |
2047 | init_debugger(); |
79072805 |
2048 | break; |
2049 | case '\024': /* ^T */ |
88e89b8a |
2050 | #ifdef BIG_TIME |
6b88bc9c |
2051 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
2052 | #else |
3280af22 |
2053 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
2054 | #endif |
79072805 |
2055 | break; |
fde18df1 |
2056 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 |
2057 | if (*(mg->mg_ptr+1) == '\0') { |
2058 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
2059 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
ac27b0f5 |
2060 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 |
2061 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 |
2062 | } |
599cee73 |
2063 | } |
0a378802 |
2064 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 |
2065 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e |
2066 | if (!SvPOK(sv) && PL_localizing) { |
2067 | sv_setpvn(sv, WARN_NONEstring, WARNsize); |
d3a7d8c7 |
2068 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e |
2069 | break; |
2070 | } |
f4fc7782 |
2071 | { |
b5477537 |
2072 | STRLEN len, i; |
d3a7d8c7 |
2073 | int accumulate = 0 ; |
f4fc7782 |
2074 | int any_fatals = 0 ; |
d3a7d8c7 |
2075 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 |
2076 | for (i = 0 ; i < len ; ++i) { |
2077 | accumulate |= ptr[i] ; |
2078 | any_fatals |= (ptr[i] & 0xAA) ; |
2079 | } |
d3a7d8c7 |
2080 | if (!accumulate) |
2081 | PL_compiling.cop_warnings = pWARN_NONE; |
f4fc7782 |
2082 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2083 | PL_compiling.cop_warnings = pWARN_ALL; |
2084 | PL_dowarn |= G_WARN_ONCE ; |
727405f8 |
2085 | } |
d3a7d8c7 |
2086 | else { |
2087 | if (specialWARN(PL_compiling.cop_warnings)) |
2088 | PL_compiling.cop_warnings = newSVsv(sv) ; |
2089 | else |
2090 | sv_setsv(PL_compiling.cop_warnings, sv); |
2091 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) |
2092 | PL_dowarn |= G_WARN_ONCE ; |
2093 | } |
f4fc7782 |
2094 | |
d3a7d8c7 |
2095 | } |
4438c4b7 |
2096 | } |
971a9dd3 |
2097 | } |
79072805 |
2098 | break; |
2099 | case '.': |
3280af22 |
2100 | if (PL_localizing) { |
2101 | if (PL_localizing == 1) |
7766f137 |
2102 | SAVESPTR(PL_last_in_gv); |
748a9306 |
2103 | } |
3280af22 |
2104 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 |
2105 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 |
2106 | break; |
2107 | case '^': |
3280af22 |
2108 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
2109 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
2110 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
2111 | break; |
2112 | case '~': |
3280af22 |
2113 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
2114 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
2115 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
2116 | break; |
2117 | case '=': |
632db599 |
2118 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2119 | break; |
2120 | case '-': |
632db599 |
2121 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 |
2122 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2123 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
2124 | break; |
2125 | case '%': |
632db599 |
2126 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2127 | break; |
2128 | case '|': |
4b65379b |
2129 | { |
3280af22 |
2130 | IO *io = GvIOp(PL_defoutgv); |
720f287d |
2131 | if(!io) |
2132 | break; |
4b65379b |
2133 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2134 | IoFLAGS(io) &= ~IOf_FLUSH; |
2135 | else { |
2136 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
2137 | PerlIO *ofp = IoOFP(io); |
2138 | if (ofp) |
2139 | (void)PerlIO_flush(ofp); |
2140 | IoFLAGS(io) |= IOf_FLUSH; |
2141 | } |
2142 | } |
79072805 |
2143 | } |
2144 | break; |
2145 | case '*': |
463ee0b2 |
2146 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 |
2147 | PL_multiline = (i != 0); |
79072805 |
2148 | break; |
2149 | case '/': |
3280af22 |
2150 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 |
2151 | PL_rs = newSVsv(sv); |
79072805 |
2152 | break; |
2153 | case '\\': |
7889fe52 |
2154 | if (PL_ors_sv) |
2155 | SvREFCNT_dec(PL_ors_sv); |
009c130f |
2156 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 |
2157 | PL_ors_sv = newSVsv(sv); |
009c130f |
2158 | } |
e3c19b7b |
2159 | else { |
7889fe52 |
2160 | PL_ors_sv = Nullsv; |
e3c19b7b |
2161 | } |
79072805 |
2162 | break; |
2163 | case ',': |
7889fe52 |
2164 | if (PL_ofs_sv) |
2165 | SvREFCNT_dec(PL_ofs_sv); |
2166 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
2167 | PL_ofs_sv = newSVsv(sv); |
2168 | } |
2169 | else { |
2170 | PL_ofs_sv = Nullsv; |
2171 | } |
79072805 |
2172 | break; |
2173 | case '#': |
3280af22 |
2174 | if (PL_ofmt) |
2175 | Safefree(PL_ofmt); |
2d8e6c8d |
2176 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 |
2177 | break; |
2178 | case '[': |
3280af22 |
2179 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
2180 | break; |
2181 | case '?': |
ff0cee69 |
2182 | #ifdef COMPLEX_STATUS |
6b88bc9c |
2183 | if (PL_localizing == 2) { |
2184 | PL_statusvalue = LvTARGOFF(sv); |
2185 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
2186 | } |
2187 | else |
2188 | #endif |
2189 | #ifdef VMSISH_STATUS |
2190 | if (VMSISH_STATUS) |
2191 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
2192 | else |
2193 | #endif |
2194 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2195 | break; |
2196 | case '!': |
93189314 |
2197 | { |
2198 | #ifdef VMS |
2199 | # define PERL_VMS_BANG vaxc$errno |
2200 | #else |
2201 | # define PERL_VMS_BANG 0 |
2202 | #endif |
91487cfc |
2203 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 |
2204 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2205 | } |
79072805 |
2206 | break; |
2207 | case '<': |
3280af22 |
2208 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2209 | if (PL_delaymagic) { |
2210 | PL_delaymagic |= DM_RUID; |
79072805 |
2211 | break; /* don't do magic till later */ |
2212 | } |
2213 | #ifdef HAS_SETRUID |
b28d0864 |
2214 | (void)setruid((Uid_t)PL_uid); |
79072805 |
2215 | #else |
2216 | #ifdef HAS_SETREUID |
3280af22 |
2217 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
2218 | #else |
85e6fe83 |
2219 | #ifdef HAS_SETRESUID |
b28d0864 |
2220 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
2221 | #else |
b28d0864 |
2222 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2223 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
2224 | else { |
d8eceb89 |
2225 | PL_uid = PerlProc_getuid(); |
cea2e8a9 |
2226 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e |
2227 | } |
79072805 |
2228 | #endif |
2229 | #endif |
85e6fe83 |
2230 | #endif |
d8eceb89 |
2231 | PL_uid = PerlProc_getuid(); |
3280af22 |
2232 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2233 | break; |
2234 | case '>': |
3280af22 |
2235 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2236 | if (PL_delaymagic) { |
2237 | PL_delaymagic |= DM_EUID; |
79072805 |
2238 | break; /* don't do magic till later */ |
2239 | } |
2240 | #ifdef HAS_SETEUID |
3280af22 |
2241 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
2242 | #else |
2243 | #ifdef HAS_SETREUID |
b28d0864 |
2244 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
2245 | #else |
2246 | #ifdef HAS_SETRESUID |
6b88bc9c |
2247 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
2248 | #else |
b28d0864 |
2249 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2250 | PerlProc_setuid(PL_euid); |
a0d0e21e |
2251 | else { |
e8ee3774 |
2252 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 |
2253 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e |
2254 | } |
79072805 |
2255 | #endif |
2256 | #endif |
85e6fe83 |
2257 | #endif |
d8eceb89 |
2258 | PL_euid = PerlProc_geteuid(); |
3280af22 |
2259 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2260 | break; |
2261 | case '(': |
3280af22 |
2262 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2263 | if (PL_delaymagic) { |
2264 | PL_delaymagic |= DM_RGID; |
79072805 |
2265 | break; /* don't do magic till later */ |
2266 | } |
2267 | #ifdef HAS_SETRGID |
b28d0864 |
2268 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
2269 | #else |
2270 | #ifdef HAS_SETREGID |
3280af22 |
2271 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
2272 | #else |
2273 | #ifdef HAS_SETRESGID |
b28d0864 |
2274 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
2275 | #else |
b28d0864 |
2276 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2277 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
2278 | else { |
d8eceb89 |
2279 | PL_gid = PerlProc_getgid(); |
cea2e8a9 |
2280 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 |
2281 | } |
79072805 |
2282 | #endif |
2283 | #endif |
85e6fe83 |
2284 | #endif |
d8eceb89 |
2285 | PL_gid = PerlProc_getgid(); |
3280af22 |
2286 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2287 | break; |
2288 | case ')': |
5cd24f17 |
2289 | #ifdef HAS_SETGROUPS |
2290 | { |
2d8e6c8d |
2291 | char *p = SvPV(sv, len); |
5cd24f17 |
2292 | Groups_t gary[NGROUPS]; |
2293 | |
5cd24f17 |
2294 | while (isSPACE(*p)) |
2295 | ++p; |
2d4389e4 |
2296 | PL_egid = Atol(p); |
5cd24f17 |
2297 | for (i = 0; i < NGROUPS; ++i) { |
2298 | while (*p && !isSPACE(*p)) |
2299 | ++p; |
2300 | while (isSPACE(*p)) |
2301 | ++p; |
2302 | if (!*p) |
2303 | break; |
2d4389e4 |
2304 | gary[i] = Atol(p); |
5cd24f17 |
2305 | } |
8cc95fdb |
2306 | if (i) |
2307 | (void)setgroups(i, gary); |
5cd24f17 |
2308 | } |
2309 | #else /* HAS_SETGROUPS */ |
b28d0864 |
2310 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
2311 | #endif /* HAS_SETGROUPS */ |
3280af22 |
2312 | if (PL_delaymagic) { |
2313 | PL_delaymagic |= DM_EGID; |
79072805 |
2314 | break; /* don't do magic till later */ |
2315 | } |
2316 | #ifdef HAS_SETEGID |
3280af22 |
2317 | (void)setegid((Gid_t)PL_egid); |
79072805 |
2318 | #else |
2319 | #ifdef HAS_SETREGID |
b28d0864 |
2320 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
2321 | #else |
2322 | #ifdef HAS_SETRESGID |
b28d0864 |
2323 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
2324 | #else |
b28d0864 |
2325 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2326 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
2327 | else { |
d8eceb89 |
2328 | PL_egid = PerlProc_getegid(); |
cea2e8a9 |
2329 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 |
2330 | } |
79072805 |
2331 | #endif |
2332 | #endif |
85e6fe83 |
2333 | #endif |
d8eceb89 |
2334 | PL_egid = PerlProc_getegid(); |
3280af22 |
2335 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2336 | break; |
2337 | case ':': |
2d8e6c8d |
2338 | PL_chopset = SvPV_force(sv,len); |
79072805 |
2339 | break; |
cd39f2b6 |
2340 | #ifndef MACOS_TRADITIONAL |
79072805 |
2341 | case '0': |
e2975953 |
2342 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 |
2343 | #ifdef HAS_SETPROCTITLE |
2344 | /* The BSDs don't show the argv[] in ps(1) output, they |
2345 | * show a string from the process struct and provide |
2346 | * the setproctitle() routine to manipulate that. */ |
2347 | { |
2348 | s = SvPV(sv, len); |
98b76f99 |
2349 | # if __FreeBSD_version > 410001 |
9aad2c0e |
2350 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 |
2351 | * but not the "(perl) suffix from the ps(1) |
2352 | * output, because that's what ps(1) shows if the |
2353 | * argv[] is modified. */ |
6f2ad931 |
2354 | setproctitle("-%s", s); |
9aad2c0e |
2355 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 |
2356 | /* This doesn't really work if you assume that |
2357 | * $0 = 'foobar'; will wipe out 'perl' from the $0 |
2358 | * because in ps(1) output the result will be like |
2359 | * sprintf("perl: %s (perl)", s) |
2360 | * I guess this is a security feature: |
2361 | * one (a user process) cannot get rid of the original name. |
2362 | * --jhi */ |
2363 | setproctitle("%s", s); |
2364 | # endif |
2365 | } |
2366 | #endif |
17aa7f3d |
2367 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2368 | { |
2369 | union pstun un; |
2370 | s = SvPV(sv, len); |
2371 | un.pst_command = s; |
2372 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2373 | } |
2374 | #endif |
3280af22 |
2375 | if (!PL_origalen) { |
2376 | s = PL_origargv[0]; |
79072805 |
2377 | s += strlen(s); |
2378 | /* See if all the arguments are contiguous in memory */ |
3280af22 |
2379 | for (i = 1; i < PL_origargc; i++) { |
2380 | if (PL_origargv[i] == s + 1 |
fb73857a |
2381 | #ifdef OS2 |
6b88bc9c |
2382 | || PL_origargv[i] == s + 2 |
ac27b0f5 |
2383 | #endif |
fb73857a |
2384 | ) |
379c4362 |
2385 | { |
2386 | ++s; |
2387 | s += strlen(s); /* this one is ok too */ |
2388 | } |
fb73857a |
2389 | else |
2390 | break; |
79072805 |
2391 | } |
bbce6d69 |
2392 | /* can grab env area too? */ |
4efc5df6 |
2393 | if (PL_origenviron |
2394 | #ifdef USE_ITHREADS |
2395 | && PL_curinterp == aTHX |
2396 | #endif |
2397 | && (PL_origenviron[0] == s + 1)) |
2398 | { |
66b1d557 |
2399 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
2400 | /* force copy of environment */ |
3280af22 |
2401 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 |
2402 | if (PL_origenviron[i] == s + 1) { |
2403 | ++s; |
2404 | s += strlen(s); |
2405 | } |
fb73857a |
2406 | else |
2407 | break; |
79072805 |
2408 | } |
3280af22 |
2409 | PL_origalen = s - PL_origargv[0]; |
79072805 |
2410 | } |
a0d0e21e |
2411 | s = SvPV_force(sv,len); |
8990e307 |
2412 | i = len; |
eb160463 |
2413 | if (i >= (I32)PL_origalen) { |
3280af22 |
2414 | i = PL_origalen; |
fb73857a |
2415 | /* don't allow system to limit $0 seen by script */ |
2416 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
3280af22 |
2417 | Copy(s, PL_origargv[0], i, char); |
2418 | s = PL_origargv[0]+i; |
fb73857a |
2419 | *s = '\0'; |
79072805 |
2420 | } |
2421 | else { |
3280af22 |
2422 | Copy(s, PL_origargv[0], i, char); |
2423 | s = PL_origargv[0]+i; |
79072805 |
2424 | *s++ = '\0'; |
eb160463 |
2425 | while (++i < (I32)PL_origalen) |
f1c3b2ef |
2426 | *s++ = '\0'; |
3280af22 |
2427 | for (i = 1; i < PL_origargc; i++) |
2428 | PL_origargv[i] = Nullch; |
79072805 |
2429 | } |
e2975953 |
2430 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 |
2431 | break; |
cd39f2b6 |
2432 | #endif |
79072805 |
2433 | } |
2434 | return 0; |
2435 | } |
2436 | |
2437 | I32 |
864dbfa3 |
2438 | Perl_whichsig(pTHX_ char *sig) |
79072805 |
2439 | { |
2440 | register char **sigv; |
2441 | |
e02bfb16 |
2442 | for (sigv = PL_sig_name; *sigv; sigv++) |
79072805 |
2443 | if (strEQ(sig,*sigv)) |
22c35a8c |
2444 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 |
2445 | #ifdef SIGCLD |
2446 | if (strEQ(sig,"CHLD")) |
2447 | return SIGCLD; |
2448 | #endif |
2449 | #ifdef SIGCHLD |
2450 | if (strEQ(sig,"CLD")) |
2451 | return SIGCHLD; |
2452 | #endif |
7f1236c0 |
2453 | return -1; |
79072805 |
2454 | } |
2455 | |
df3728a2 |
2456 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 |
2457 | static SV* sig_sv; |
df3728a2 |
2458 | #endif |
84902520 |
2459 | |
ecfc5424 |
2460 | Signal_t |
cea2e8a9 |
2461 | Perl_sighandler(int sig) |
79072805 |
2462 | { |
1018e26f |
2463 | #ifdef PERL_GET_SIG_CONTEXT |
2464 | dTHXa(PERL_GET_SIG_CONTEXT); |
71d280e3 |
2465 | #else |
cea2e8a9 |
2466 | dTHX; |
71d280e3 |
2467 | #endif |
79072805 |
2468 | dSP; |
00d579c5 |
2469 | GV *gv = Nullgv; |
a0d0e21e |
2470 | HV *st; |
b7953727 |
2471 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 |
2472 | CV *cv = Nullcv; |
533c011a |
2473 | OP *myop = PL_op; |
84902520 |
2474 | U32 flags = 0; |
3280af22 |
2475 | XPV *tXpv = PL_Xpv; |
71d280e3 |
2476 | |
3280af22 |
2477 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2478 | flags |= 1; |
3280af22 |
2479 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2480 | flags |= 4; |
3280af22 |
2481 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 |
2482 | flags |= 8; |
3280af22 |
2483 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2484 | flags |= 16; |
2485 | |
727405f8 |
2486 | if (!PL_psig_ptr[sig]) { |
99ef548b |
2487 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 |
2488 | PL_sig_name[sig]); |
2489 | exit(sig); |
2490 | } |
ff0cee69 |
2491 | |
84902520 |
2492 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2493 | infinity, so we fix 4 (in fact 5): */ |
2494 | if (flags & 1) { |
3280af22 |
2495 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee |
2496 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 |
2497 | } |
ac27b0f5 |
2498 | if (flags & 4) |
3280af22 |
2499 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2500 | if (flags & 8) { |
3280af22 |
2501 | PL_retstack_ix++; |
2502 | PL_retstack[PL_retstack_ix] = NULL; |
84902520 |
2503 | } |
2504 | if (flags & 16) |
3280af22 |
2505 | PL_scopestack_ix += 1; |
84902520 |
2506 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 |
2507 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 |
2508 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c |
2509 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 |
2510 | |
a0d0e21e |
2511 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2512 | if (ckWARN(WARN_SIGNAL)) |
9014280d |
2513 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c |
2514 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 |
2515 | : ((cv && CvGV(cv)) |
2516 | ? GvENAME(CvGV(cv)) |
2517 | : "__ANON__"))); |
2518 | goto cleanup; |
79072805 |
2519 | } |
2520 | |
22c35a8c |
2521 | if(PL_psig_name[sig]) { |
2522 | sv = SvREFCNT_inc(PL_psig_name[sig]); |
84902520 |
2523 | flags |= 64; |
df3728a2 |
2524 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 |
2525 | sig_sv = sv; |
df3728a2 |
2526 | #endif |
84902520 |
2527 | } else { |
ff0cee69 |
2528 | sv = sv_newmortal(); |
22c35a8c |
2529 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a |
2530 | } |
e336de0d |
2531 | |
e788e7d3 |
2532 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2533 | PUSHMARK(SP); |
79072805 |
2534 | PUSHs(sv); |
79072805 |
2535 | PUTBACK; |
a0d0e21e |
2536 | |
1b266415 |
2537 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 |
2538 | |
d3acc0f7 |
2539 | POPSTACK; |
1b266415 |
2540 | if (SvTRUE(ERRSV)) { |
1d615522 |
2541 | #ifndef PERL_MICRO |
983dbef6 |
2542 | #ifdef HAS_SIGPROCMASK |
1b266415 |
2543 | /* Handler "died", for example to get out of a restart-able read(). |
2544 | * Before we re-do that on its behalf re-enable the signal which was |
2545 | * blocked by the system when we entered. |
2546 | */ |
2547 | sigset_t set; |
2548 | sigemptyset(&set); |
2549 | sigaddset(&set,sig); |
2550 | sigprocmask(SIG_UNBLOCK, &set, NULL); |
2551 | #else |
2552 | /* Not clear if this will work */ |
2553 | (void)rsignal(sig, SIG_IGN); |
0a8e0eff |
2554 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 |
2555 | #endif |
1d615522 |
2556 | #endif /* !PERL_MICRO */ |
b3fe4827 |
2557 | Perl_die(aTHX_ Nullformat); |
1b266415 |
2558 | } |
00d579c5 |
2559 | cleanup: |
84902520 |
2560 | if (flags & 1) |
3280af22 |
2561 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 |
2562 | if (flags & 4) |
3280af22 |
2563 | PL_markstack_ptr--; |
ac27b0f5 |
2564 | if (flags & 8) |
3280af22 |
2565 | PL_retstack_ix--; |
84902520 |
2566 | if (flags & 16) |
3280af22 |
2567 | PL_scopestack_ix -= 1; |
84902520 |
2568 | if (flags & 64) |
2569 | SvREFCNT_dec(sv); |
533c011a |
2570 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 |
2571 | |
3280af22 |
2572 | PL_Sv = tSv; /* Restore global temporaries. */ |
2573 | PL_Xpv = tXpv; |
79072805 |
2574 | return; |
2575 | } |
4e35701f |
2576 | |
2577 | |
51371543 |
2578 | static void |
acfe0abc |
2579 | restore_magic(pTHX_ void *p) |
51371543 |
2580 | { |
48944bdf |
2581 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 |
2582 | SV* sv = mgs->mgs_sv; |
2583 | |
2584 | if (!sv) |
2585 | return; |
2586 | |
2587 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
2588 | { |
2589 | if (mgs->mgs_flags) |
2590 | SvFLAGS(sv) |= mgs->mgs_flags; |
2591 | else |
2592 | mg_magical(sv); |
2593 | if (SvGMAGICAL(sv)) |
2594 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
2595 | } |
2596 | |
2597 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ |
2598 | |
2599 | /* If we're still on top of the stack, pop us off. (That condition |
2600 | * will be satisfied if restore_magic was called explicitly, but *not* |
2601 | * if it's being called via leave_scope.) |
2602 | * The reason for doing this is that otherwise, things like sv_2cv() |
2603 | * may leave alloc gunk on the savestack, and some code |
2604 | * (e.g. sighandler) doesn't expect that... |
2605 | */ |
2606 | if (PL_savestack_ix == mgs->mgs_ss_ix) |
2607 | { |
2608 | I32 popval = SSPOPINT; |
c76ac1ee |
2609 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 |
2610 | PL_savestack_ix -= 2; |
2611 | popval = SSPOPINT; |
2612 | assert(popval == SAVEt_ALLOC); |
2613 | popval = SSPOPINT; |
2614 | PL_savestack_ix -= popval; |
2615 | } |
2616 | |
2617 | } |
2618 | |
2619 | static void |
acfe0abc |
2620 | unwind_handler_stack(pTHX_ void *p) |
51371543 |
2621 | { |
51371543 |
2622 | U32 flags = *(U32*)p; |
2623 | |
2624 | if (flags & 1) |
2625 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
2626 | /* cxstack_ix-- Not needed, die already unwound it. */ |
df3728a2 |
2627 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 |
2628 | if (flags & 64) |
2629 | SvREFCNT_dec(sig_sv); |
df3728a2 |
2630 | #endif |
51371543 |
2631 | } |
1018e26f |
2632 | |
2633 | |