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); |
ff76feab |
136 | /* Don't restore the flags for this entry if it was deleted. */ |
137 | if (mg->mg_flags & MGf_GSKIP) |
138 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; |
a0d0e21e |
139 | } |
ff76feab |
140 | |
141 | mg = mg->mg_moremagic; |
142 | |
143 | if (new) { |
144 | /* Have we finished with the new entries we saw? Start again |
145 | where we left off (unless there are more new entries). */ |
146 | if (mg == head) { |
147 | new = 0; |
148 | mg = cur; |
149 | head = newmg; |
150 | } |
151 | } |
152 | |
153 | /* Were any new entries added? */ |
154 | if (!new && (newmg = SvMAGIC(sv)) != head) { |
155 | new = 1; |
156 | cur = mg; |
157 | mg = newmg; |
760ac839 |
158 | } |
79072805 |
159 | } |
463ee0b2 |
160 | |
acfe0abc |
161 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 |
162 | return 0; |
163 | } |
164 | |
954c1994 |
165 | /* |
166 | =for apidoc mg_set |
167 | |
168 | Do magic after a value is assigned to the SV. See C<sv_magic>. |
169 | |
170 | =cut |
171 | */ |
172 | |
79072805 |
173 | int |
864dbfa3 |
174 | Perl_mg_set(pTHX_ SV *sv) |
79072805 |
175 | { |
8fb26106 |
176 | I32 mgs_ix; |
79072805 |
177 | MAGIC* mg; |
463ee0b2 |
178 | MAGIC* nextmg; |
179 | |
455ece5e |
180 | mgs_ix = SSNEW(sizeof(MGS)); |
181 | save_magic(mgs_ix, sv); |
463ee0b2 |
182 | |
183 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
184 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
185 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
186 | if (mg->mg_flags & MGf_GSKIP) { |
187 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
455ece5e |
188 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
189 | } |
2b260de0 |
190 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 |
191 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 |
192 | } |
463ee0b2 |
193 | |
acfe0abc |
194 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 |
195 | return 0; |
196 | } |
197 | |
954c1994 |
198 | /* |
199 | =for apidoc mg_length |
200 | |
201 | Report on the SV's length. See C<sv_magic>. |
202 | |
203 | =cut |
204 | */ |
205 | |
79072805 |
206 | U32 |
864dbfa3 |
207 | Perl_mg_length(pTHX_ SV *sv) |
79072805 |
208 | { |
209 | MAGIC* mg; |
463ee0b2 |
210 | STRLEN len; |
463ee0b2 |
211 | |
79072805 |
212 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
213 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
214 | if (vtbl && vtbl->svt_len) { |
8fb26106 |
215 | I32 mgs_ix; |
48e43a1c |
216 | |
455ece5e |
217 | mgs_ix = SSNEW(sizeof(MGS)); |
218 | save_magic(mgs_ix, sv); |
a0d0e21e |
219 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
220 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc |
221 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 |
222 | return len; |
223 | } |
224 | } |
225 | |
7719e241 |
226 | if (DO_UTF8(sv)) |
5636d518 |
227 | { |
228 | U8 *s = (U8*)SvPV(sv, len); |
229 | len = Perl_utf8_length(aTHX_ s, s + len); |
230 | } |
231 | else |
232 | (void)SvPV(sv, len); |
463ee0b2 |
233 | return len; |
79072805 |
234 | } |
235 | |
8fb26106 |
236 | I32 |
864dbfa3 |
237 | Perl_mg_size(pTHX_ SV *sv) |
93965878 |
238 | { |
239 | MAGIC* mg; |
240 | I32 len; |
ac27b0f5 |
241 | |
93965878 |
242 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
243 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
244 | if (vtbl && vtbl->svt_len) { |
8fb26106 |
245 | I32 mgs_ix; |
455ece5e |
246 | |
247 | mgs_ix = SSNEW(sizeof(MGS)); |
248 | save_magic(mgs_ix, sv); |
93965878 |
249 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
250 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc |
251 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 |
252 | return len; |
253 | } |
254 | } |
255 | |
256 | switch(SvTYPE(sv)) { |
257 | case SVt_PVAV: |
258 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
259 | return len; |
260 | case SVt_PVHV: |
261 | /* FIXME */ |
262 | default: |
cea2e8a9 |
263 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 |
264 | break; |
265 | } |
266 | return 0; |
267 | } |
268 | |
954c1994 |
269 | /* |
270 | =for apidoc mg_clear |
271 | |
272 | Clear something magical that the SV represents. See C<sv_magic>. |
273 | |
274 | =cut |
275 | */ |
276 | |
79072805 |
277 | int |
864dbfa3 |
278 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 |
279 | { |
8fb26106 |
280 | I32 mgs_ix; |
79072805 |
281 | MAGIC* mg; |
463ee0b2 |
282 | |
455ece5e |
283 | mgs_ix = SSNEW(sizeof(MGS)); |
284 | save_magic(mgs_ix, sv); |
463ee0b2 |
285 | |
79072805 |
286 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
287 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
288 | /* omit GSKIP -- never set here */ |
727405f8 |
289 | |
2b260de0 |
290 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 |
291 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 |
292 | } |
463ee0b2 |
293 | |
acfe0abc |
294 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 |
295 | return 0; |
296 | } |
297 | |
954c1994 |
298 | /* |
299 | =for apidoc mg_find |
300 | |
301 | Finds the magic pointer for type matching the SV. See C<sv_magic>. |
302 | |
303 | =cut |
304 | */ |
305 | |
93a17b20 |
306 | MAGIC* |
864dbfa3 |
307 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 |
308 | { |
309 | MAGIC* mg; |
3f8f4626 |
310 | if (!sv) |
311 | return 0; |
93a17b20 |
312 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
313 | if (mg->mg_type == type) |
314 | return mg; |
315 | } |
316 | return 0; |
317 | } |
318 | |
954c1994 |
319 | /* |
320 | =for apidoc mg_copy |
321 | |
322 | Copies the magic from one SV to another. See C<sv_magic>. |
323 | |
324 | =cut |
325 | */ |
326 | |
79072805 |
327 | int |
864dbfa3 |
328 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 |
329 | { |
463ee0b2 |
330 | int count = 0; |
79072805 |
331 | MAGIC* mg; |
463ee0b2 |
332 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 |
333 | MGVTBL* vtbl = mg->mg_virtual; |
334 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
335 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); |
336 | } |
337 | else if (isUPPER(mg->mg_type)) { |
33c27489 |
338 | sv_magic(nsv, |
14befaf4 |
339 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
340 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) |
341 | ? sv : mg->mg_obj, |
33c27489 |
342 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
343 | count++; |
79072805 |
344 | } |
79072805 |
345 | } |
463ee0b2 |
346 | return count; |
79072805 |
347 | } |
348 | |
954c1994 |
349 | /* |
350 | =for apidoc mg_free |
351 | |
352 | Free any magic storage used by the SV. See C<sv_magic>. |
353 | |
354 | =cut |
355 | */ |
356 | |
79072805 |
357 | int |
864dbfa3 |
358 | Perl_mg_free(pTHX_ SV *sv) |
79072805 |
359 | { |
360 | MAGIC* mg; |
361 | MAGIC* moremagic; |
362 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
363 | MGVTBL* vtbl = mg->mg_virtual; |
364 | moremagic = mg->mg_moremagic; |
2b260de0 |
365 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 |
366 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 |
367 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 |
368 | if (mg->mg_len > 0) |
88e89b8a |
369 | Safefree(mg->mg_ptr); |
565764a8 |
370 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
371 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 |
372 | } |
b881518d |
373 | if (mg->mg_flags & MGf_REFCOUNTED) |
374 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
375 | Safefree(mg); |
376 | } |
377 | SvMAGIC(sv) = 0; |
378 | return 0; |
379 | } |
380 | |
d460ef45 |
381 | |
79072805 |
382 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
383 | #include <signal.h> |
384 | #endif |
385 | |
942e002e |
386 | U32 |
864dbfa3 |
387 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
388 | { |
6cef1e77 |
389 | register REGEXP *rx; |
6cef1e77 |
390 | |
aaa362c4 |
391 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 |
392 | if (mg->mg_obj) /* @+ */ |
393 | return rx->nparens; |
394 | else /* @- */ |
395 | return rx->lastparen; |
396 | } |
ac27b0f5 |
397 | |
942e002e |
398 | return (U32)-1; |
6cef1e77 |
399 | } |
400 | |
401 | int |
864dbfa3 |
402 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
403 | { |
6cef1e77 |
404 | register I32 paren; |
cf93c79d |
405 | register I32 s; |
6cef1e77 |
406 | register I32 i; |
407 | register REGEXP *rx; |
cf93c79d |
408 | I32 t; |
6cef1e77 |
409 | |
aaa362c4 |
410 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 |
411 | paren = mg->mg_len; |
412 | if (paren < 0) |
413 | return 0; |
eb160463 |
414 | if (paren <= (I32)rx->nparens && |
cf93c79d |
415 | (s = rx->startp[paren]) != -1 && |
416 | (t = rx->endp[paren]) != -1) |
6cef1e77 |
417 | { |
418 | if (mg->mg_obj) /* @+ */ |
cf93c79d |
419 | i = t; |
6cef1e77 |
420 | else /* @- */ |
cf93c79d |
421 | i = s; |
727405f8 |
422 | |
a30b2f1f |
423 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b |
424 | char *b = rx->subbeg; |
0064a8a9 |
425 | if (b) |
426 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); |
1aa99e6b |
427 | } |
0064a8a9 |
428 | |
429 | sv_setiv(sv, i); |
6cef1e77 |
430 | } |
431 | } |
432 | return 0; |
433 | } |
434 | |
e4b89193 |
435 | int |
a29d06ed |
436 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
437 | { |
a29d06ed |
438 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 |
439 | /* NOT REACHED */ |
440 | return 0; |
a29d06ed |
441 | } |
442 | |
93a17b20 |
443 | U32 |
864dbfa3 |
444 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
445 | { |
446 | register I32 paren; |
93a17b20 |
447 | register I32 i; |
d9f97599 |
448 | register REGEXP *rx; |
a197cbdd |
449 | I32 s1, t1; |
93a17b20 |
450 | |
451 | switch (*mg->mg_ptr) { |
452 | case '1': case '2': case '3': case '4': |
453 | case '5': case '6': case '7': case '8': case '9': case '&': |
aaa362c4 |
454 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
455 | |
ffc61ed2 |
456 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 |
457 | getparen: |
eb160463 |
458 | if (paren <= (I32)rx->nparens && |
cf93c79d |
459 | (s1 = rx->startp[paren]) != -1 && |
460 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
461 | { |
cf93c79d |
462 | i = t1 - s1; |
a197cbdd |
463 | getlen: |
a30b2f1f |
464 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
ffc61ed2 |
465 | char *s = rx->subbeg + s1; |
a197cbdd |
466 | char *send = rx->subbeg + t1; |
ffc61ed2 |
467 | |
6d5fa195 |
468 | i = t1 - s1; |
60425c38 |
469 | if (is_utf8_string((U8*)s, i)) |
470 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); |
a197cbdd |
471 | } |
ffc61ed2 |
472 | if (i < 0) |
0844c848 |
473 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 |
474 | return i; |
93a17b20 |
475 | } |
235bddc8 |
476 | else { |
477 | if (ckWARN(WARN_UNINITIALIZED)) |
478 | report_uninit(); |
479 | } |
480 | } |
481 | else { |
482 | if (ckWARN(WARN_UNINITIALIZED)) |
483 | report_uninit(); |
93a17b20 |
484 | } |
748a9306 |
485 | return 0; |
93a17b20 |
486 | case '+': |
aaa362c4 |
487 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 |
488 | paren = rx->lastparen; |
13f57bf8 |
489 | if (paren) |
490 | goto getparen; |
93a17b20 |
491 | } |
748a9306 |
492 | return 0; |
a01268b5 |
493 | case '\016': /* ^N */ |
494 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
495 | paren = rx->lastcloseparen; |
496 | if (paren) |
497 | goto getparen; |
498 | } |
499 | return 0; |
93a17b20 |
500 | case '`': |
aaa362c4 |
501 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
502 | if (rx->startp[0] != -1) { |
503 | i = rx->startp[0]; |
a197cbdd |
504 | if (i > 0) { |
505 | s1 = 0; |
506 | t1 = i; |
507 | goto getlen; |
508 | } |
93a17b20 |
509 | } |
93a17b20 |
510 | } |
748a9306 |
511 | return 0; |
93a17b20 |
512 | case '\'': |
aaa362c4 |
513 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
514 | if (rx->endp[0] != -1) { |
515 | i = rx->sublen - rx->endp[0]; |
a197cbdd |
516 | if (i > 0) { |
517 | s1 = rx->endp[0]; |
518 | t1 = rx->sublen; |
519 | goto getlen; |
520 | } |
93a17b20 |
521 | } |
93a17b20 |
522 | } |
748a9306 |
523 | return 0; |
93a17b20 |
524 | } |
525 | magic_get(sv,mg); |
2d8e6c8d |
526 | if (!SvPOK(sv) && SvNIOK(sv)) { |
527 | STRLEN n_a; |
528 | sv_2pv(sv, &n_a); |
529 | } |
93a17b20 |
530 | if (SvPOK(sv)) |
531 | return SvCUR(sv); |
532 | return 0; |
533 | } |
534 | |
79072805 |
535 | int |
864dbfa3 |
536 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
537 | { |
538 | register I32 paren; |
539 | register char *s; |
540 | register I32 i; |
d9f97599 |
541 | register REGEXP *rx; |
79072805 |
542 | |
543 | switch (*mg->mg_ptr) { |
748a9306 |
544 | case '\001': /* ^A */ |
3280af22 |
545 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
546 | break; |
49460fe6 |
547 | case '\003': /* ^C */ |
548 | sv_setiv(sv, (IV)PL_minus_c); |
549 | break; |
550 | |
79072805 |
551 | case '\004': /* ^D */ |
aea4f609 |
552 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f |
553 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 |
554 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f |
555 | #endif |
79072805 |
556 | break; |
28f23441 |
557 | case '\005': /* ^E */ |
0a378802 |
558 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 |
559 | #ifdef MACOS_TRADITIONAL |
0a378802 |
560 | { |
561 | char msg[256]; |
727405f8 |
562 | |
0a378802 |
563 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 |
564 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 |
565 | } |
727405f8 |
566 | #else |
28f23441 |
567 | #ifdef VMS |
0a378802 |
568 | { |
569 | # include <descrip.h> |
570 | # include <starlet.h> |
571 | char msg[255]; |
572 | $DESCRIPTOR(msgdsc,msg); |
573 | sv_setnv(sv,(NV) vaxc$errno); |
574 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
575 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
576 | else |
577 | sv_setpv(sv,""); |
578 | } |
28f23441 |
579 | #else |
88e89b8a |
580 | #ifdef OS2 |
0a378802 |
581 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
582 | sv_setnv(sv, (NV)errno); |
583 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
584 | } else { |
585 | if (errno != errno_isOS2) { |
586 | int tmp = _syserrno(); |
587 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
588 | Perl_rc = tmp; |
589 | } |
590 | sv_setnv(sv, (NV)Perl_rc); |
591 | sv_setpv(sv, os2error(Perl_rc)); |
592 | } |
88e89b8a |
593 | #else |
22fae026 |
594 | #ifdef WIN32 |
0a378802 |
595 | { |
596 | DWORD dwErr = GetLastError(); |
597 | sv_setnv(sv, (NV)dwErr); |
598 | if (dwErr) |
599 | { |
600 | PerlProc_GetOSError(sv, dwErr); |
601 | } |
602 | else |
603 | sv_setpv(sv, ""); |
604 | SetLastError(dwErr); |
605 | } |
22fae026 |
606 | #else |
0a378802 |
607 | sv_setnv(sv, (NV)errno); |
608 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
28f23441 |
609 | #endif |
88e89b8a |
610 | #endif |
22fae026 |
611 | #endif |
cd39f2b6 |
612 | #endif |
0a378802 |
613 | SvNOK_on(sv); /* what a wonderful hack! */ |
614 | } |
615 | else if (strEQ(mg->mg_ptr+1, "NCODING")) |
616 | sv_setsv(sv, PL_encoding); |
617 | break; |
79072805 |
618 | case '\006': /* ^F */ |
3280af22 |
619 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
620 | break; |
a0d0e21e |
621 | case '\010': /* ^H */ |
3280af22 |
622 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
623 | break; |
9d116dd7 |
624 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
625 | if (PL_inplace) |
626 | sv_setpv(sv, PL_inplace); |
79072805 |
627 | else |
3280af22 |
628 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
629 | break; |
ac27b0f5 |
630 | case '\017': /* ^O & ^OPEN */ |
631 | if (*(mg->mg_ptr+1) == '\0') |
632 | sv_setpv(sv, PL_osname); |
633 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
634 | if (!PL_compiling.cop_io) |
635 | sv_setsv(sv, &PL_sv_undef); |
636 | else { |
637 | sv_setsv(sv, PL_compiling.cop_io); |
638 | } |
639 | } |
28f23441 |
640 | break; |
79072805 |
641 | case '\020': /* ^P */ |
3280af22 |
642 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
643 | break; |
fb73857a |
644 | case '\023': /* ^S */ |
4ffa73a3 |
645 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 |
646 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 |
647 | (void)SvOK_off(sv); |
3280af22 |
648 | else if (PL_in_eval) |
6dc8a9e4 |
649 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a |
650 | else |
651 | sv_setiv(sv, 0); |
d58bf5aa |
652 | } |
fb73857a |
653 | break; |
79072805 |
654 | case '\024': /* ^T */ |
7c36658b |
655 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a |
656 | #ifdef BIG_TIME |
7c36658b |
657 | sv_setnv(sv, PL_basetime); |
88e89b8a |
658 | #else |
7c36658b |
659 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
660 | #endif |
7c36658b |
661 | } |
662 | else if (strEQ(mg->mg_ptr, "\024AINT")) |
9aa05f58 |
663 | sv_setiv(sv, PL_tainting |
664 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) |
665 | : 0); |
7c36658b |
666 | break; |
a05d7ebb |
667 | case '\025': /* $^UNICODE */ |
668 | if (strEQ(mg->mg_ptr, "\025NICODE")) |
669 | sv_setuv(sv, (UV) PL_unicode); |
fde18df1 |
670 | break; |
671 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 |
672 | if (*(mg->mg_ptr+1) == '\0') |
673 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
0a378802 |
674 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 |
675 | if (PL_compiling.cop_warnings == pWARN_NONE || |
676 | PL_compiling.cop_warnings == pWARN_STD) |
4438c4b7 |
677 | { |
678 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
679 | } |
d3a7d8c7 |
680 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca |
681 | /* Get the bit mask for $warnings::Bits{all}, because |
682 | * it could have been extended by warnings::register */ |
683 | SV **bits_all; |
684 | HV *bits=get_hv("warnings::Bits", FALSE); |
685 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { |
686 | sv_setsv(sv, *bits_all); |
687 | } |
688 | else { |
689 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
690 | } |
ac27b0f5 |
691 | } |
4438c4b7 |
692 | else { |
693 | sv_setsv(sv, PL_compiling.cop_warnings); |
ac27b0f5 |
694 | } |
d3a7d8c7 |
695 | SvPOK_only(sv); |
4438c4b7 |
696 | } |
79072805 |
697 | break; |
698 | case '1': case '2': case '3': case '4': |
699 | case '5': case '6': case '7': case '8': case '9': case '&': |
aaa362c4 |
700 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
701 | I32 s1, t1; |
702 | |
a863c7d1 |
703 | /* |
704 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
705 | * XXX Does the new way break anything? |
706 | */ |
ffc61ed2 |
707 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 |
708 | getparen: |
eb160463 |
709 | if (paren <= (I32)rx->nparens && |
cf93c79d |
710 | (s1 = rx->startp[paren]) != -1 && |
711 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
712 | { |
cf93c79d |
713 | i = t1 - s1; |
714 | s = rx->subbeg + s1; |
01ec43d0 |
715 | if (!rx->subbeg) |
c2e66d9e |
716 | break; |
717 | |
13f57bf8 |
718 | getrx: |
748a9306 |
719 | if (i >= 0) { |
cf93c79d |
720 | sv_setpvn(sv, s, i); |
a30b2f1f |
721 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 |
722 | SvUTF8_on(sv); |
723 | else |
724 | SvUTF8_off(sv); |
e9814ee1 |
725 | if (PL_tainting) { |
726 | if (RX_MATCH_TAINTED(rx)) { |
727 | MAGIC* mg = SvMAGIC(sv); |
728 | MAGIC* mgt; |
729 | PL_tainted = 1; |
730 | SvMAGIC(sv) = mg->mg_moremagic; |
731 | SvTAINT(sv); |
732 | if ((mgt = SvMAGIC(sv))) { |
733 | mg->mg_moremagic = mgt; |
734 | SvMAGIC(sv) = mg; |
735 | } |
736 | } else |
737 | SvTAINTED_off(sv); |
738 | } |
748a9306 |
739 | break; |
740 | } |
79072805 |
741 | } |
79072805 |
742 | } |
3280af22 |
743 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
744 | break; |
745 | case '+': |
aaa362c4 |
746 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 |
747 | paren = rx->lastparen; |
a0d0e21e |
748 | if (paren) |
749 | goto getparen; |
79072805 |
750 | } |
3280af22 |
751 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
752 | break; |
a01268b5 |
753 | case '\016': /* ^N */ |
754 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
755 | paren = rx->lastcloseparen; |
756 | if (paren) |
757 | goto getparen; |
758 | } |
759 | sv_setsv(sv,&PL_sv_undef); |
760 | break; |
79072805 |
761 | case '`': |
aaa362c4 |
762 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
763 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
764 | i = rx->startp[0]; |
13f57bf8 |
765 | goto getrx; |
79072805 |
766 | } |
79072805 |
767 | } |
3280af22 |
768 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
769 | break; |
770 | case '\'': |
aaa362c4 |
771 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d |
772 | if (rx->subbeg && rx->endp[0] != -1) { |
773 | s = rx->subbeg + rx->endp[0]; |
774 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
775 | goto getrx; |
79072805 |
776 | } |
79072805 |
777 | } |
3280af22 |
778 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
779 | break; |
780 | case '.': |
781 | #ifndef lint |
3280af22 |
782 | if (GvIO(PL_last_in_gv)) { |
357c8808 |
783 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 |
784 | } |
785 | #endif |
786 | break; |
787 | case '?': |
809a5acc |
788 | { |
809a5acc |
789 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
790 | #ifdef COMPLEX_STATUS |
6b88bc9c |
791 | LvTARGOFF(sv) = PL_statusvalue; |
792 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
793 | #endif |
809a5acc |
794 | } |
79072805 |
795 | break; |
796 | case '^': |
3280af22 |
797 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
798 | if (s) |
799 | sv_setpv(sv,s); |
800 | else { |
3280af22 |
801 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
802 | sv_catpv(sv,"_TOP"); |
803 | } |
804 | break; |
805 | case '~': |
3280af22 |
806 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
807 | if (!s) |
3280af22 |
808 | s = GvENAME(PL_defoutgv); |
79072805 |
809 | sv_setpv(sv,s); |
810 | break; |
811 | #ifndef lint |
812 | case '=': |
3280af22 |
813 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
814 | break; |
815 | case '-': |
3280af22 |
816 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
817 | break; |
818 | case '%': |
3280af22 |
819 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
820 | break; |
821 | #endif |
822 | case ':': |
823 | break; |
824 | case '/': |
825 | break; |
826 | case '[': |
3280af22 |
827 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
828 | break; |
829 | case '|': |
3280af22 |
830 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
831 | break; |
832 | case ',': |
79072805 |
833 | break; |
834 | case '\\': |
b2ce0fda |
835 | if (PL_ors_sv) |
f28098ff |
836 | sv_copypv(sv, PL_ors_sv); |
79072805 |
837 | break; |
838 | case '#': |
3280af22 |
839 | sv_setpv(sv,PL_ofmt); |
79072805 |
840 | break; |
841 | case '!': |
a5f75d66 |
842 | #ifdef VMS |
65202027 |
843 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
844 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
845 | #else |
88e89b8a |
846 | { |
847 | int saveerrno = errno; |
65202027 |
848 | sv_setnv(sv, (NV)errno); |
88e89b8a |
849 | #ifdef OS2 |
ed344e4f |
850 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
851 | sv_setpv(sv, os2error(Perl_rc)); |
88e89b8a |
852 | else |
a5f75d66 |
853 | #endif |
2304df62 |
854 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
855 | errno = saveerrno; |
856 | } |
857 | #endif |
946ec16e |
858 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
859 | break; |
860 | case '<': |
3280af22 |
861 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
862 | break; |
863 | case '>': |
3280af22 |
864 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
865 | break; |
866 | case '(': |
3280af22 |
867 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 |
868 | #ifdef HAS_GETGROUPS |
785fb66b |
869 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 |
870 | #endif |
79072805 |
871 | goto add_groups; |
872 | case ')': |
3280af22 |
873 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 |
874 | #ifdef HAS_GETGROUPS |
785fb66b |
875 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 |
876 | #endif |
79072805 |
877 | add_groups: |
79072805 |
878 | #ifdef HAS_GETGROUPS |
79072805 |
879 | { |
a0d0e21e |
880 | Groups_t gary[NGROUPS]; |
79072805 |
881 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
882 | while (--i >= 0) |
785fb66b |
883 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 |
884 | } |
885 | #endif |
155aba94 |
886 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
887 | break; |
888 | case '*': |
889 | break; |
cd39f2b6 |
890 | #ifndef MACOS_TRADITIONAL |
79072805 |
891 | case '0': |
892 | break; |
cd39f2b6 |
893 | #endif |
79072805 |
894 | } |
a0d0e21e |
895 | return 0; |
79072805 |
896 | } |
897 | |
898 | int |
864dbfa3 |
899 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
900 | { |
901 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
902 | |
903 | if (uf && uf->uf_val) |
24f81a43 |
904 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 |
905 | return 0; |
906 | } |
907 | |
908 | int |
864dbfa3 |
909 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
910 | { |
911 | register char *s; |
88e89b8a |
912 | char *ptr; |
5aabfad6 |
913 | STRLEN len, klen; |
1e422769 |
914 | |
a0d0e21e |
915 | s = SvPV(sv,len); |
5aabfad6 |
916 | ptr = MgPV(mg,klen); |
88e89b8a |
917 | my_setenv(ptr, s); |
1e422769 |
918 | |
a0d0e21e |
919 | #ifdef DYNAMIC_ENV_FETCH |
920 | /* We just undefd an environment var. Is a replacement */ |
921 | /* waiting in the wings? */ |
922 | if (!len) { |
5aabfad6 |
923 | SV **valp; |
6b88bc9c |
924 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 |
925 | s = SvPV(*valp, len); |
a0d0e21e |
926 | } |
927 | #endif |
1e422769 |
928 | |
39e571d4 |
929 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
930 | /* And you'll never guess what the dog had */ |
931 | /* in its mouth... */ |
3280af22 |
932 | if (PL_tainting) { |
1e422769 |
933 | MgTAINTEDDIR_off(mg); |
934 | #ifdef VMS |
5aabfad6 |
935 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
936 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 |
937 | Stat_t sbuf; |
1e422769 |
938 | int i = 0, j = 0; |
939 | |
940 | do { /* DCL$PATH may be a search list */ |
941 | while (1) { /* as may dev portion of any element */ |
942 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
943 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
944 | cando_by_name(S_IWUSR,0,elt) ) { |
945 | MgTAINTEDDIR_on(mg); |
946 | return 0; |
947 | } |
948 | } |
949 | if ((cp = strchr(elt, ':')) != Nullch) |
950 | *cp = '\0'; |
951 | if (my_trnlnm(elt, eltbuf, j++)) |
952 | elt = eltbuf; |
953 | else |
954 | break; |
955 | } |
956 | j = 0; |
957 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
958 | } |
959 | #endif /* VMS */ |
5aabfad6 |
960 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
961 | char *strend = s + len; |
463ee0b2 |
962 | |
963 | while (s < strend) { |
96827780 |
964 | char tmpbuf[256]; |
c623ac67 |
965 | Stat_t st; |
5f74f29c |
966 | I32 i; |
96827780 |
967 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
968 | s, strend, ':', &i); |
463ee0b2 |
969 | s++; |
96827780 |
970 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
971 | || *tmpbuf != '/' |
c6ed36e1 |
972 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
973 | MgTAINTEDDIR_on(mg); |
1e422769 |
974 | return 0; |
975 | } |
463ee0b2 |
976 | } |
79072805 |
977 | } |
978 | } |
39e571d4 |
979 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
980 | |
79072805 |
981 | return 0; |
982 | } |
983 | |
984 | int |
864dbfa3 |
985 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 |
986 | { |
2d8e6c8d |
987 | STRLEN n_a; |
988 | my_setenv(MgPV(mg,n_a),Nullch); |
85e6fe83 |
989 | return 0; |
990 | } |
991 | |
88e89b8a |
992 | int |
864dbfa3 |
993 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a |
994 | { |
995 | #if defined(VMS) |
cea2e8a9 |
996 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a |
997 | #else |
3280af22 |
998 | if (PL_localizing) { |
fb73857a |
999 | HE* entry; |
2d8e6c8d |
1000 | STRLEN n_a; |
fb73857a |
1001 | magic_clear_all_env(sv,mg); |
1002 | hv_iterinit((HV*)sv); |
155aba94 |
1003 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a |
1004 | I32 keylen; |
1005 | my_setenv(hv_iterkey(entry, &keylen), |
2d8e6c8d |
1006 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a |
1007 | } |
1008 | } |
1009 | #endif |
1010 | return 0; |
1011 | } |
1012 | |
1013 | int |
864dbfa3 |
1014 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 |
1015 | { |
ed79a026 |
1016 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 |
1017 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d |
1018 | #else |
4efc5df6 |
1019 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 |
1020 | PerlEnv_clearenv(); |
4efc5df6 |
1021 | # else |
1022 | # ifdef USE_ENVIRON_ARRAY |
1023 | # if defined(USE_ITHREADS) |
1024 | /* only the parent thread can clobber the process environment */ |
1025 | if (PL_curinterp == aTHX) |
1026 | # endif |
1027 | { |
1028 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 |
1029 | I32 i; |
1030 | |
3280af22 |
1031 | if (environ == PL_origenviron) |
f2517201 |
1032 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 |
1033 | else |
1034 | for (i = 0; environ[i]; i++) |
f2517201 |
1035 | safesysfree(environ[i]); |
4efc5df6 |
1036 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 |
1037 | |
66b1d557 |
1038 | environ[0] = Nullch; |
4efc5df6 |
1039 | } |
1040 | # endif /* USE_ENVIRON_ARRAY */ |
052c2dc6 |
1041 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
1042 | #endif /* VMS || EPC */ |
3e3baf6d |
1043 | return 0; |
66b1d557 |
1044 | } |
1045 | |
2e34cc90 |
1046 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1047 | static int sig_handlers_initted = 0; |
1048 | #endif |
7719e241 |
1049 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1050 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1051 | #endif |
2e34cc90 |
1052 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1053 | static int sig_defaulting[SIG_SIZE]; |
1054 | #endif |
85b332e2 |
1055 | |
64ca3a65 |
1056 | #ifndef PERL_MICRO |
2d4fcd5e |
1057 | #ifdef HAS_SIGPROCMASK |
1058 | static void |
1059 | restore_sigmask(pTHX_ SV *save_sv) |
1060 | { |
1061 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); |
1062 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); |
1063 | } |
1064 | #endif |
66b1d557 |
1065 | int |
864dbfa3 |
1066 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
1067 | { |
1068 | I32 i; |
2d8e6c8d |
1069 | STRLEN n_a; |
88e89b8a |
1070 | /* Are we fetching a signal entry? */ |
2d8e6c8d |
1071 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
1072 | if (i) { |
22c35a8c |
1073 | if(PL_psig_ptr[i]) |
1074 | sv_setsv(sv,PL_psig_ptr[i]); |
88e89b8a |
1075 | else { |
85b332e2 |
1076 | Sighandler_t sigstate; |
2e34cc90 |
1077 | sigstate = rsignal_state(i); |
23ada85b |
1078 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 |
1079 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1080 | #endif |
1081 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1082 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 |
1083 | #endif |
88e89b8a |
1084 | /* cache state so we don't fetch it again */ |
ff68c719 |
1085 | if(sigstate == SIG_IGN) |
88e89b8a |
1086 | sv_setpv(sv,"IGNORE"); |
1087 | else |
3280af22 |
1088 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c |
1089 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1090 | SvTEMP_off(sv); |
1091 | } |
1092 | } |
1093 | return 0; |
1094 | } |
1095 | int |
864dbfa3 |
1096 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
1097 | { |
2d4fcd5e |
1098 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1099 | * refactoring might be in order. |
1100 | */ |
1101 | register char *s; |
2d8e6c8d |
1102 | STRLEN n_a; |
2d4fcd5e |
1103 | SV* to_dec; |
1104 | s = MgPV(mg,n_a); |
1105 | if (*s == '_') { |
1106 | SV** svp; |
1107 | if (strEQ(s,"__DIE__")) |
1108 | svp = &PL_diehook; |
1109 | else if (strEQ(s,"__WARN__")) |
1110 | svp = &PL_warnhook; |
1111 | else |
1112 | Perl_croak(aTHX_ "No such hook: %s", s); |
1113 | if (*svp) { |
1114 | to_dec = *svp; |
1115 | *svp = 0; |
1116 | SvREFCNT_dec(to_dec); |
1117 | } |
1118 | } |
1119 | else { |
1120 | I32 i; |
1121 | /* Are we clearing a signal entry? */ |
1122 | i = whichsig(s); |
1123 | if (i) { |
1124 | #ifdef HAS_SIGPROCMASK |
1125 | sigset_t set, save; |
1126 | SV* save_sv; |
1127 | /* Avoid having the signal arrive at a bad time, if possible. */ |
1128 | sigemptyset(&set); |
1129 | sigaddset(&set,i); |
1130 | sigprocmask(SIG_BLOCK, &set, &save); |
1131 | ENTER; |
1132 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); |
1133 | SAVEFREESV(save_sv); |
1134 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); |
1135 | #endif |
1136 | PERL_ASYNC_CHECK(); |
1137 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1138 | if (!sig_handlers_initted) Perl_csighandler_init(); |
1139 | #endif |
1140 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1141 | sig_defaulting[i] = 1; |
1142 | (void)rsignal(i, &Perl_csighandler); |
1143 | #else |
1144 | (void)rsignal(i, SIG_DFL); |
1145 | #endif |
1146 | if(PL_psig_name[i]) { |
1147 | SvREFCNT_dec(PL_psig_name[i]); |
1148 | PL_psig_name[i]=0; |
1149 | } |
1150 | if(PL_psig_ptr[i]) { |
1151 | to_dec=PL_psig_ptr[i]; |
1152 | PL_psig_ptr[i]=0; |
1153 | LEAVE; |
1154 | SvREFCNT_dec(to_dec); |
1155 | } |
1156 | else |
1157 | LEAVE; |
1158 | } |
88e89b8a |
1159 | } |
1160 | return 0; |
1161 | } |
3d37d572 |
1162 | |
0a8e0eff |
1163 | void |
1164 | Perl_raise_signal(pTHX_ int sig) |
1165 | { |
1166 | /* Set a flag to say this signal is pending */ |
1167 | PL_psig_pend[sig]++; |
1168 | /* And one to say _a_ signal is pending */ |
1169 | PL_sig_pending = 1; |
1170 | } |
1171 | |
1172 | Signal_t |
1173 | Perl_csighandler(int sig) |
1174 | { |
1018e26f |
1175 | #ifdef PERL_GET_SIG_CONTEXT |
1176 | dTHXa(PERL_GET_SIG_CONTEXT); |
1177 | #else |
85b332e2 |
1178 | dTHX; |
1179 | #endif |
23ada85b |
1180 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1181 | (void) rsignal(sig, &Perl_csighandler); |
1182 | if (sig_ignoring[sig]) return; |
1183 | #endif |
2e34cc90 |
1184 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 |
1185 | if (sig_defaulting[sig]) |
2e34cc90 |
1186 | #ifdef KILL_BY_SIGPRC |
1187 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); |
1188 | #else |
1189 | exit(1); |
1190 | #endif |
1191 | #endif |
4ffa73a3 |
1192 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1193 | /* Call the perl level handler now-- |
1194 | * with risk we may be in malloc() etc. */ |
1195 | (*PL_sighandlerp)(sig); |
1196 | else |
1197 | Perl_raise_signal(aTHX_ sig); |
0a8e0eff |
1198 | } |
1199 | |
2e34cc90 |
1200 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1201 | void |
1202 | Perl_csighandler_init(void) |
1203 | { |
1204 | int sig; |
1205 | if (sig_handlers_initted) return; |
1206 | |
1207 | for (sig = 1; sig < SIG_SIZE; sig++) { |
1208 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
218fdd94 |
1209 | dTHX; |
2e34cc90 |
1210 | sig_defaulting[sig] = 1; |
1211 | (void) rsignal(sig, &Perl_csighandler); |
1212 | #endif |
1213 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
1214 | sig_ignoring[sig] = 0; |
1215 | #endif |
1216 | } |
1217 | sig_handlers_initted = 1; |
1218 | } |
1219 | #endif |
1220 | |
0a8e0eff |
1221 | void |
1222 | Perl_despatch_signals(pTHX) |
1223 | { |
1224 | int sig; |
1225 | PL_sig_pending = 0; |
1226 | for (sig = 1; sig < SIG_SIZE; sig++) { |
1227 | if (PL_psig_pend[sig]) { |
25da4428 |
1228 | PERL_BLOCKSIG_ADD(set, sig); |
1229 | PL_psig_pend[sig] = 0; |
1230 | PERL_BLOCKSIG_BLOCK(set); |
f5203343 |
1231 | (*PL_sighandlerp)(sig); |
25da4428 |
1232 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff |
1233 | } |
1234 | } |
1235 | } |
1236 | |
85e6fe83 |
1237 | int |
864dbfa3 |
1238 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1239 | { |
1240 | register char *s; |
1241 | I32 i; |
b7953727 |
1242 | SV** svp = 0; |
2d4fcd5e |
1243 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1244 | * effects (due to closures). We must make sure that the new disposition |
1245 | * is in place before it is called. |
1246 | */ |
1247 | SV* to_dec = 0; |
e72dc28c |
1248 | STRLEN len; |
2d4fcd5e |
1249 | #ifdef HAS_SIGPROCMASK |
1250 | sigset_t set, save; |
1251 | SV* save_sv; |
1252 | #endif |
a0d0e21e |
1253 | |
e72dc28c |
1254 | s = MgPV(mg,len); |
748a9306 |
1255 | if (*s == '_') { |
1256 | if (strEQ(s,"__DIE__")) |
3280af22 |
1257 | svp = &PL_diehook; |
748a9306 |
1258 | else if (strEQ(s,"__WARN__")) |
3280af22 |
1259 | svp = &PL_warnhook; |
748a9306 |
1260 | else |
cea2e8a9 |
1261 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 |
1262 | i = 0; |
4633a7c4 |
1263 | if (*svp) { |
2d4fcd5e |
1264 | to_dec = *svp; |
4633a7c4 |
1265 | *svp = 0; |
1266 | } |
748a9306 |
1267 | } |
1268 | else { |
1269 | i = whichsig(s); /* ...no, a brick */ |
1270 | if (!i) { |
e476b1b5 |
1271 | if (ckWARN(WARN_SIGNAL)) |
9014280d |
1272 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 |
1273 | return 0; |
1274 | } |
2d4fcd5e |
1275 | #ifdef HAS_SIGPROCMASK |
1276 | /* Avoid having the signal arrive at a bad time, if possible. */ |
1277 | sigemptyset(&set); |
1278 | sigaddset(&set,i); |
1279 | sigprocmask(SIG_BLOCK, &set, &save); |
1280 | ENTER; |
1281 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); |
1282 | SAVEFREESV(save_sv); |
1283 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); |
1284 | #endif |
1285 | PERL_ASYNC_CHECK(); |
2e34cc90 |
1286 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1287 | if (!sig_handlers_initted) Perl_csighandler_init(); |
1288 | #endif |
23ada85b |
1289 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1290 | sig_ignoring[i] = 0; |
1291 | #endif |
2e34cc90 |
1292 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
2d4fcd5e |
1293 | sig_defaulting[i] = 0; |
2e34cc90 |
1294 | #endif |
22c35a8c |
1295 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e |
1296 | to_dec = PL_psig_ptr[i]; |
22c35a8c |
1297 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1298 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c |
1299 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c |
1300 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 |
1301 | } |
a0d0e21e |
1302 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e |
1303 | if (i) { |
0a8e0eff |
1304 | (void)rsignal(i, &Perl_csighandler); |
2d4fcd5e |
1305 | #ifdef HAS_SIGPROCMASK |
1306 | LEAVE; |
1307 | #endif |
1308 | } |
748a9306 |
1309 | else |
1310 | *svp = SvREFCNT_inc(sv); |
2d4fcd5e |
1311 | if(to_dec) |
1312 | SvREFCNT_dec(to_dec); |
a0d0e21e |
1313 | return 0; |
1314 | } |
e72dc28c |
1315 | s = SvPV_force(sv,len); |
748a9306 |
1316 | if (strEQ(s,"IGNORE")) { |
85b332e2 |
1317 | if (i) { |
23ada85b |
1318 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 |
1319 | sig_ignoring[i] = 1; |
1320 | (void)rsignal(i, &Perl_csighandler); |
1321 | #else |
ff68c719 |
1322 | (void)rsignal(i, SIG_IGN); |
85b332e2 |
1323 | #endif |
2d4fcd5e |
1324 | } |
748a9306 |
1325 | } |
1326 | else if (strEQ(s,"DEFAULT") || !*s) { |
1327 | if (i) |
2e34cc90 |
1328 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1329 | { |
1330 | sig_defaulting[i] = 1; |
1331 | (void)rsignal(i, &Perl_csighandler); |
1332 | } |
1333 | #else |
ff68c719 |
1334 | (void)rsignal(i, SIG_DFL); |
2e34cc90 |
1335 | #endif |
748a9306 |
1336 | } |
79072805 |
1337 | else { |
5aabfad6 |
1338 | /* |
1339 | * We should warn if HINT_STRICT_REFS, but without |
1340 | * access to a known hint bit in a known OP, we can't |
1341 | * tell whether HINT_STRICT_REFS is in force or not. |
1342 | */ |
46fc3d4c |
1343 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c |
1344 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 |
1345 | if (i) |
0a8e0eff |
1346 | (void)rsignal(i, &Perl_csighandler); |
748a9306 |
1347 | else |
1348 | *svp = SvREFCNT_inc(sv); |
79072805 |
1349 | } |
2d4fcd5e |
1350 | #ifdef HAS_SIGPROCMASK |
1351 | if(i) |
1352 | LEAVE; |
1353 | #endif |
1354 | if(to_dec) |
1355 | SvREFCNT_dec(to_dec); |
79072805 |
1356 | return 0; |
1357 | } |
64ca3a65 |
1358 | #endif /* !PERL_MICRO */ |
79072805 |
1359 | |
1360 | int |
864dbfa3 |
1361 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1362 | { |
3280af22 |
1363 | PL_sub_generation++; |
463ee0b2 |
1364 | return 0; |
1365 | } |
1366 | |
1367 | int |
864dbfa3 |
1368 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1369 | { |
a0d0e21e |
1370 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
1371 | PL_amagic_generation++; |
463ee0b2 |
1372 | |
a0d0e21e |
1373 | return 0; |
1374 | } |
463ee0b2 |
1375 | |
946ec16e |
1376 | int |
864dbfa3 |
1377 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1378 | { |
1379 | HV *hv = (HV*)LvTARG(sv); |
6ff81951 |
1380 | I32 i = 0; |
7719e241 |
1381 | |
6ff81951 |
1382 | if (hv) { |
497b47a8 |
1383 | (void) hv_iterinit(hv); |
1384 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
1385 | i = HvKEYS(hv); |
1386 | else { |
1387 | while (hv_iternext(hv)) |
1388 | i++; |
1389 | } |
6ff81951 |
1390 | } |
1391 | |
1392 | sv_setiv(sv, (IV)i); |
1393 | return 0; |
1394 | } |
1395 | |
1396 | int |
864dbfa3 |
1397 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e |
1398 | { |
1399 | if (LvTARG(sv)) { |
1400 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1401 | } |
1402 | return 0; |
ac27b0f5 |
1403 | } |
946ec16e |
1404 | |
e336de0d |
1405 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1406 | STATIC int |
cea2e8a9 |
1407 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1408 | { |
1409 | dSP; |
463ee0b2 |
1410 | |
924508f0 |
1411 | PUSHMARK(SP); |
1412 | EXTEND(SP, n); |
33c27489 |
1413 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 |
1414 | if (n > 1) { |
93965878 |
1415 | if (mg->mg_ptr) { |
565764a8 |
1416 | if (mg->mg_len >= 0) |
79cb57f6 |
1417 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 |
1418 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1419 | PUSHs((SV*)mg->mg_ptr); |
1420 | } |
14befaf4 |
1421 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 |
1422 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1423 | } |
1424 | } |
1425 | if (n > 2) { |
1426 | PUSHs(val); |
88e89b8a |
1427 | } |
463ee0b2 |
1428 | PUTBACK; |
1429 | |
864dbfa3 |
1430 | return call_method(meth, flags); |
946ec16e |
1431 | } |
1432 | |
76e3520e |
1433 | STATIC int |
cea2e8a9 |
1434 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1435 | { |
1436 | dSP; |
463ee0b2 |
1437 | |
a0d0e21e |
1438 | ENTER; |
1439 | SAVETMPS; |
e788e7d3 |
1440 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1441 | |
33c27489 |
1442 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1443 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1444 | } |
463ee0b2 |
1445 | |
d3acc0f7 |
1446 | POPSTACK; |
a0d0e21e |
1447 | FREETMPS; |
1448 | LEAVE; |
1449 | return 0; |
1450 | } |
463ee0b2 |
1451 | |
a0d0e21e |
1452 | int |
864dbfa3 |
1453 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1454 | { |
1455 | magic_methpack(sv,mg,"FETCH"); |
1456 | if (mg->mg_ptr) |
1457 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1458 | return 0; |
1459 | } |
1460 | |
1461 | int |
864dbfa3 |
1462 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d |
1463 | { |
1464 | dSP; |
a60c0954 |
1465 | ENTER; |
e788e7d3 |
1466 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1467 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1468 | POPSTACK; |
a60c0954 |
1469 | LEAVE; |
463ee0b2 |
1470 | return 0; |
1471 | } |
1472 | |
1473 | int |
864dbfa3 |
1474 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1475 | { |
a0d0e21e |
1476 | return magic_methpack(sv,mg,"DELETE"); |
1477 | } |
463ee0b2 |
1478 | |
93965878 |
1479 | |
1480 | U32 |
864dbfa3 |
1481 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 |
1482 | { |
e336de0d |
1483 | dSP; |
93965878 |
1484 | U32 retval = 0; |
1485 | |
1486 | ENTER; |
1487 | SAVETMPS; |
e788e7d3 |
1488 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1489 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1490 | sv = *PL_stack_sp--; |
a60c0954 |
1491 | retval = (U32) SvIV(sv)-1; |
93965878 |
1492 | } |
d3acc0f7 |
1493 | POPSTACK; |
93965878 |
1494 | FREETMPS; |
1495 | LEAVE; |
1496 | return retval; |
1497 | } |
1498 | |
cea2e8a9 |
1499 | int |
1500 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1501 | { |
1502 | dSP; |
463ee0b2 |
1503 | |
e336de0d |
1504 | ENTER; |
e788e7d3 |
1505 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1506 | PUSHMARK(SP); |
33c27489 |
1507 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1508 | PUTBACK; |
864dbfa3 |
1509 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1510 | POPSTACK; |
a60c0954 |
1511 | LEAVE; |
463ee0b2 |
1512 | return 0; |
1513 | } |
1514 | |
1515 | int |
864dbfa3 |
1516 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1517 | { |
463ee0b2 |
1518 | dSP; |
dff6d3cd |
1519 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1520 | |
1521 | ENTER; |
a0d0e21e |
1522 | SAVETMPS; |
e788e7d3 |
1523 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1524 | PUSHMARK(SP); |
1525 | EXTEND(SP, 2); |
33c27489 |
1526 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1527 | if (SvOK(key)) |
1528 | PUSHs(key); |
1529 | PUTBACK; |
1530 | |
864dbfa3 |
1531 | if (call_method(meth, G_SCALAR)) |
3280af22 |
1532 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1533 | |
d3acc0f7 |
1534 | POPSTACK; |
a0d0e21e |
1535 | FREETMPS; |
1536 | LEAVE; |
79072805 |
1537 | return 0; |
1538 | } |
1539 | |
1540 | int |
864dbfa3 |
1541 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1542 | { |
1543 | return magic_methpack(sv,mg,"EXISTS"); |
ac27b0f5 |
1544 | } |
a0d0e21e |
1545 | |
1546 | int |
864dbfa3 |
1547 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1548 | { |
1549 | OP *o; |
1550 | I32 i; |
1551 | GV* gv; |
1552 | SV** svp; |
2d8e6c8d |
1553 | STRLEN n_a; |
79072805 |
1554 | |
3280af22 |
1555 | gv = PL_DBline; |
79072805 |
1556 | i = SvTRUE(sv); |
188ea221 |
1557 | svp = av_fetch(GvAV(gv), |
2d8e6c8d |
1558 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 |
1559 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1560 | /* set or clear breakpoint in the relevant control op */ |
1561 | if (i) |
1562 | o->op_flags |= OPf_SPECIAL; |
1563 | else |
1564 | o->op_flags &= ~OPf_SPECIAL; |
1565 | } |
79072805 |
1566 | return 0; |
1567 | } |
1568 | |
1569 | int |
864dbfa3 |
1570 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1571 | { |
3280af22 |
1572 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 |
1573 | return 0; |
1574 | } |
1575 | |
1576 | int |
864dbfa3 |
1577 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1578 | { |
3280af22 |
1579 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e |
1580 | return 0; |
1581 | } |
1582 | |
1583 | int |
864dbfa3 |
1584 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1585 | { |
1586 | SV* lsv = LvTARG(sv); |
ac27b0f5 |
1587 | |
a0d0e21e |
1588 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 |
1589 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 |
1590 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 |
1591 | I32 i = mg->mg_len; |
7e2040f0 |
1592 | if (DO_UTF8(lsv)) |
a0ed51b3 |
1593 | sv_pos_b2u(lsv, &i); |
1594 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1595 | return 0; |
1596 | } |
1597 | } |
1598 | (void)SvOK_off(sv); |
1599 | return 0; |
1600 | } |
1601 | |
1602 | int |
864dbfa3 |
1603 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1604 | { |
1605 | SV* lsv = LvTARG(sv); |
1606 | SSize_t pos; |
1607 | STRLEN len; |
c00206c8 |
1608 | STRLEN ulen = 0; |
a0d0e21e |
1609 | |
1610 | mg = 0; |
ac27b0f5 |
1611 | |
a0d0e21e |
1612 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 |
1613 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1614 | if (!mg) { |
1615 | if (!SvOK(sv)) |
1616 | return 0; |
14befaf4 |
1617 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1618 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e |
1619 | } |
1620 | else if (!SvOK(sv)) { |
565764a8 |
1621 | mg->mg_len = -1; |
a0d0e21e |
1622 | return 0; |
1623 | } |
1624 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1625 | |
c485e607 |
1626 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1627 | |
7e2040f0 |
1628 | if (DO_UTF8(lsv)) { |
a0ed51b3 |
1629 | ulen = sv_len_utf8(lsv); |
1630 | if (ulen) |
1631 | len = ulen; |
a0ed51b3 |
1632 | } |
1633 | |
a0d0e21e |
1634 | if (pos < 0) { |
1635 | pos += len; |
1636 | if (pos < 0) |
1637 | pos = 0; |
1638 | } |
eb160463 |
1639 | else if (pos > (SSize_t)len) |
a0d0e21e |
1640 | pos = len; |
a0ed51b3 |
1641 | |
1642 | if (ulen) { |
1643 | I32 p = pos; |
1644 | sv_pos_u2b(lsv, &p, 0); |
1645 | pos = p; |
1646 | } |
727405f8 |
1647 | |
565764a8 |
1648 | mg->mg_len = pos; |
71be2cbc |
1649 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1650 | |
79072805 |
1651 | return 0; |
1652 | } |
1653 | |
1654 | int |
864dbfa3 |
1655 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1656 | { |
8646b087 |
1657 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1658 | SvFAKE_off(sv); |
946ec16e |
1659 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1660 | SvFAKE_on(sv); |
1661 | } |
1662 | else |
946ec16e |
1663 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1664 | return 0; |
1665 | } |
1666 | |
1667 | int |
864dbfa3 |
1668 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1669 | { |
1670 | register char *s; |
1671 | GV* gv; |
2d8e6c8d |
1672 | STRLEN n_a; |
79072805 |
1673 | |
1674 | if (!SvOK(sv)) |
1675 | return 0; |
2d8e6c8d |
1676 | s = SvPV(sv, n_a); |
79072805 |
1677 | if (*s == '*' && s[1]) |
1678 | s++; |
85e6fe83 |
1679 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1680 | if (sv == (SV*)gv) |
1681 | return 0; |
1682 | if (GvGP(sv)) |
88e89b8a |
1683 | gp_free((GV*)sv); |
79072805 |
1684 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1685 | return 0; |
1686 | } |
1687 | |
1688 | int |
864dbfa3 |
1689 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1690 | { |
1691 | STRLEN len; |
1692 | SV *lsv = LvTARG(sv); |
1693 | char *tmps = SvPV(lsv,len); |
1694 | I32 offs = LvTARGOFF(sv); |
1695 | I32 rem = LvTARGLEN(sv); |
1696 | |
9aa983d2 |
1697 | if (SvUTF8(lsv)) |
1698 | sv_pos_u2b(lsv, &offs, &rem); |
eb160463 |
1699 | if (offs > (I32)len) |
6ff81951 |
1700 | offs = len; |
eb160463 |
1701 | if (rem + offs > (I32)len) |
6ff81951 |
1702 | rem = len - offs; |
1703 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
9aa983d2 |
1704 | if (SvUTF8(lsv)) |
2ef4b674 |
1705 | SvUTF8_on(sv); |
6ff81951 |
1706 | return 0; |
1707 | } |
1708 | |
1709 | int |
864dbfa3 |
1710 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1711 | { |
9aa983d2 |
1712 | STRLEN len; |
1713 | char *tmps = SvPV(sv, len); |
1714 | SV *lsv = LvTARG(sv); |
1715 | I32 lvoff = LvTARGOFF(sv); |
1716 | I32 lvlen = LvTARGLEN(sv); |
075a4a2b |
1717 | |
1aa99e6b |
1718 | if (DO_UTF8(sv)) { |
9aa983d2 |
1719 | sv_utf8_upgrade(lsv); |
1720 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
1721 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1722 | SvUTF8_on(lsv); |
1723 | } |
9bf12eaf |
1724 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 |
1725 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 |
1726 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 |
1727 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1728 | Safefree(tmps); |
1aa99e6b |
1729 | } |
1730 | else |
9aa983d2 |
1731 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b |
1732 | |
79072805 |
1733 | return 0; |
1734 | } |
1735 | |
1736 | int |
864dbfa3 |
1737 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1738 | { |
565764a8 |
1739 | TAINT_IF((mg->mg_len & 1) || |
155aba94 |
1740 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 |
1741 | return 0; |
1742 | } |
1743 | |
1744 | int |
864dbfa3 |
1745 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1746 | { |
3280af22 |
1747 | if (PL_localizing) { |
1748 | if (PL_localizing == 1) |
565764a8 |
1749 | mg->mg_len <<= 1; |
748a9306 |
1750 | else |
565764a8 |
1751 | mg->mg_len >>= 1; |
a0d0e21e |
1752 | } |
3280af22 |
1753 | else if (PL_tainted) |
565764a8 |
1754 | mg->mg_len |= 1; |
748a9306 |
1755 | else |
565764a8 |
1756 | mg->mg_len &= ~1; |
463ee0b2 |
1757 | return 0; |
1758 | } |
1759 | |
1760 | int |
864dbfa3 |
1761 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1762 | { |
1763 | SV *lsv = LvTARG(sv); |
6ff81951 |
1764 | |
1765 | if (!lsv) { |
155aba94 |
1766 | (void)SvOK_off(sv); |
6ff81951 |
1767 | return 0; |
1768 | } |
6ff81951 |
1769 | |
81e118e0 |
1770 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 |
1771 | return 0; |
1772 | } |
1773 | |
1774 | int |
864dbfa3 |
1775 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1776 | { |
1777 | do_vecset(sv); /* XXX slurp this routine */ |
1778 | return 0; |
1779 | } |
1780 | |
1781 | int |
864dbfa3 |
1782 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc |
1783 | { |
71be2cbc |
1784 | SV *targ = Nullsv; |
5f05dabc |
1785 | if (LvTARGLEN(sv)) { |
68dc0745 |
1786 | if (mg->mg_obj) { |
74e13ce4 |
1787 | SV *ahv = LvTARG(sv); |
6d822dc4 |
1788 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1789 | if (he) |
1790 | targ = HeVAL(he); |
68dc0745 |
1791 | } |
1792 | else { |
3c78fafa |
1793 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1794 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1795 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1796 | } |
3280af22 |
1797 | if (targ && targ != &PL_sv_undef) { |
68dc0745 |
1798 | /* somebody else defined it for us */ |
1799 | SvREFCNT_dec(LvTARG(sv)); |
1800 | LvTARG(sv) = SvREFCNT_inc(targ); |
1801 | LvTARGLEN(sv) = 0; |
1802 | SvREFCNT_dec(mg->mg_obj); |
1803 | mg->mg_obj = Nullsv; |
1804 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1805 | } |
5f05dabc |
1806 | } |
71be2cbc |
1807 | else |
1808 | targ = LvTARG(sv); |
3280af22 |
1809 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
1810 | return 0; |
1811 | } |
1812 | |
1813 | int |
864dbfa3 |
1814 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc |
1815 | { |
1816 | if (LvTARGLEN(sv)) |
68dc0745 |
1817 | vivify_defelem(sv); |
1818 | if (LvTARG(sv)) { |
5f05dabc |
1819 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1820 | SvSETMAGIC(LvTARG(sv)); |
1821 | } |
5f05dabc |
1822 | return 0; |
1823 | } |
1824 | |
71be2cbc |
1825 | void |
864dbfa3 |
1826 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc |
1827 | { |
74e13ce4 |
1828 | MAGIC *mg; |
1829 | SV *value = Nullsv; |
71be2cbc |
1830 | |
14befaf4 |
1831 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc |
1832 | return; |
68dc0745 |
1833 | if (mg->mg_obj) { |
74e13ce4 |
1834 | SV *ahv = LvTARG(sv); |
2d8e6c8d |
1835 | STRLEN n_a; |
6d822dc4 |
1836 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1837 | if (he) |
1838 | value = HeVAL(he); |
3280af22 |
1839 | if (!value || value == &PL_sv_undef) |
cea2e8a9 |
1840 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc |
1841 | } |
68dc0745 |
1842 | else { |
1843 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1844 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1845 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1846 | else { |
1847 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
1848 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 |
1849 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 |
1850 | } |
1851 | } |
3e3baf6d |
1852 | (void)SvREFCNT_inc(value); |
68dc0745 |
1853 | SvREFCNT_dec(LvTARG(sv)); |
1854 | LvTARG(sv) = value; |
71be2cbc |
1855 | LvTARGLEN(sv) = 0; |
68dc0745 |
1856 | SvREFCNT_dec(mg->mg_obj); |
1857 | mg->mg_obj = Nullsv; |
1858 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1859 | } |
1860 | |
1861 | int |
864dbfa3 |
1862 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 |
1863 | { |
1864 | AV *av = (AV*)mg->mg_obj; |
1865 | SV **svp = AvARRAY(av); |
1866 | I32 i = AvFILLp(av); |
1867 | while (i >= 0) { |
1868 | if (svp[i] && svp[i] != &PL_sv_undef) { |
1869 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 |
1870 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 |
1871 | /* XXX Should we check that it hasn't changed? */ |
1872 | SvRV(svp[i]) = 0; |
155aba94 |
1873 | (void)SvOK_off(svp[i]); |
810b8aa5 |
1874 | SvWEAKREF_off(svp[i]); |
1875 | svp[i] = &PL_sv_undef; |
1876 | } |
1877 | i--; |
1878 | } |
1879 | return 0; |
1880 | } |
1881 | |
1882 | int |
864dbfa3 |
1883 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
1884 | { |
565764a8 |
1885 | mg->mg_len = -1; |
c6496cc7 |
1886 | SvSCREAM_off(sv); |
93a17b20 |
1887 | return 0; |
1888 | } |
1889 | |
1890 | int |
864dbfa3 |
1891 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1892 | { |
14befaf4 |
1893 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 |
1894 | SvVALID_off(sv); |
1895 | return 0; |
1896 | } |
1897 | |
1898 | int |
864dbfa3 |
1899 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff |
1900 | { |
14befaf4 |
1901 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff |
1902 | SvCOMPILED_off(sv); |
1903 | return 0; |
1904 | } |
1905 | |
1906 | int |
864dbfa3 |
1907 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1908 | { |
1909 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1910 | |
1911 | if (uf && uf->uf_set) |
24f81a43 |
1912 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 |
1913 | return 0; |
1914 | } |
1915 | |
c277df42 |
1916 | int |
faf82a0b |
1917 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
1918 | { |
1919 | sv_unmagic(sv, PERL_MAGIC_qr); |
1920 | return 0; |
1921 | } |
1922 | |
1923 | int |
864dbfa3 |
1924 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 |
1925 | { |
1926 | regexp *re = (regexp *)mg->mg_obj; |
1927 | ReREFCNT_dec(re); |
1928 | return 0; |
1929 | } |
1930 | |
7a4c00b4 |
1931 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1932 | int |
864dbfa3 |
1933 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 |
1934 | { |
1935 | /* |
838b5b74 |
1936 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 |
1937 | * and vanished with a faint plop. |
1938 | */ |
7a4c00b4 |
1939 | if (mg->mg_ptr) { |
1940 | Safefree(mg->mg_ptr); |
1941 | mg->mg_ptr = NULL; |
565764a8 |
1942 | mg->mg_len = -1; |
7a4c00b4 |
1943 | } |
bbce6d69 |
1944 | return 0; |
1945 | } |
7a4c00b4 |
1946 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1947 | |
7e8c5dac |
1948 | /* Just clear the UTF-8 cache data. */ |
1949 | int |
1950 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) |
1951 | { |
1952 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
1953 | mg->mg_ptr = 0; |
1954 | mg->mg_len = -1; /* The mg_len holds the len cache. */ |
1955 | return 0; |
1956 | } |
1957 | |
bbce6d69 |
1958 | int |
864dbfa3 |
1959 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1960 | { |
1961 | register char *s; |
1962 | I32 i; |
8990e307 |
1963 | STRLEN len; |
79072805 |
1964 | switch (*mg->mg_ptr) { |
748a9306 |
1965 | case '\001': /* ^A */ |
3280af22 |
1966 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
1967 | break; |
49460fe6 |
1968 | case '\003': /* ^C */ |
eb160463 |
1969 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 |
1970 | break; |
1971 | |
79072805 |
1972 | case '\004': /* ^D */ |
aea4f609 |
1973 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 |
1974 | DEBUG_x(dump_all()); |
1975 | break; |
28f23441 |
1976 | case '\005': /* ^E */ |
d0063567 |
1977 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 |
1978 | #ifdef MACOS_TRADITIONAL |
d0063567 |
1979 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 |
1980 | #else |
cd39f2b6 |
1981 | # ifdef VMS |
d0063567 |
1982 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf |
1983 | # else |
cd39f2b6 |
1984 | # ifdef WIN32 |
d0063567 |
1985 | SetLastError( SvIV(sv) ); |
cd39f2b6 |
1986 | # else |
9fed8b87 |
1987 | # ifdef OS2 |
d0063567 |
1988 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 |
1989 | # else |
d0063567 |
1990 | /* will anyone ever use this? */ |
1991 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
cd39f2b6 |
1992 | # endif |
048c1ddf |
1993 | # endif |
1994 | # endif |
22fae026 |
1995 | #endif |
d0063567 |
1996 | } |
1997 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { |
1998 | if (PL_encoding) |
1999 | SvREFCNT_dec(PL_encoding); |
2000 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
2001 | PL_encoding = newSVsv(sv); |
2002 | } |
2003 | else { |
2004 | PL_encoding = Nullsv; |
2005 | } |
2006 | } |
2007 | break; |
79072805 |
2008 | case '\006': /* ^F */ |
3280af22 |
2009 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
2010 | break; |
a0d0e21e |
2011 | case '\010': /* ^H */ |
3280af22 |
2012 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
2013 | break; |
9d116dd7 |
2014 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
2015 | if (PL_inplace) |
2016 | Safefree(PL_inplace); |
79072805 |
2017 | if (SvOK(sv)) |
2d8e6c8d |
2018 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 |
2019 | else |
3280af22 |
2020 | PL_inplace = Nullch; |
79072805 |
2021 | break; |
28f23441 |
2022 | case '\017': /* ^O */ |
ac27b0f5 |
2023 | if (*(mg->mg_ptr+1) == '\0') { |
2024 | if (PL_osname) |
2025 | Safefree(PL_osname); |
2026 | if (SvOK(sv)) |
2027 | PL_osname = savepv(SvPV(sv,len)); |
2028 | else |
2029 | PL_osname = Nullch; |
2030 | } |
2031 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
2032 | if (!PL_compiling.cop_io) |
2033 | PL_compiling.cop_io = newSVsv(sv); |
2034 | else |
2035 | sv_setsv(PL_compiling.cop_io,sv); |
2036 | } |
28f23441 |
2037 | break; |
79072805 |
2038 | case '\020': /* ^P */ |
3280af22 |
2039 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e |
2040 | if (PL_perldb && !PL_DBsingle) |
2041 | init_debugger(); |
79072805 |
2042 | break; |
2043 | case '\024': /* ^T */ |
88e89b8a |
2044 | #ifdef BIG_TIME |
6b88bc9c |
2045 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
2046 | #else |
3280af22 |
2047 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
2048 | #endif |
79072805 |
2049 | break; |
fde18df1 |
2050 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 |
2051 | if (*(mg->mg_ptr+1) == '\0') { |
2052 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
2053 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
ac27b0f5 |
2054 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 |
2055 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 |
2056 | } |
599cee73 |
2057 | } |
0a378802 |
2058 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 |
2059 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e |
2060 | if (!SvPOK(sv) && PL_localizing) { |
2061 | sv_setpvn(sv, WARN_NONEstring, WARNsize); |
d3a7d8c7 |
2062 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e |
2063 | break; |
2064 | } |
f4fc7782 |
2065 | { |
b5477537 |
2066 | STRLEN len, i; |
d3a7d8c7 |
2067 | int accumulate = 0 ; |
f4fc7782 |
2068 | int any_fatals = 0 ; |
d3a7d8c7 |
2069 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 |
2070 | for (i = 0 ; i < len ; ++i) { |
2071 | accumulate |= ptr[i] ; |
2072 | any_fatals |= (ptr[i] & 0xAA) ; |
2073 | } |
d3a7d8c7 |
2074 | if (!accumulate) |
2075 | PL_compiling.cop_warnings = pWARN_NONE; |
f4fc7782 |
2076 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2077 | PL_compiling.cop_warnings = pWARN_ALL; |
2078 | PL_dowarn |= G_WARN_ONCE ; |
727405f8 |
2079 | } |
d3a7d8c7 |
2080 | else { |
2081 | if (specialWARN(PL_compiling.cop_warnings)) |
2082 | PL_compiling.cop_warnings = newSVsv(sv) ; |
2083 | else |
2084 | sv_setsv(PL_compiling.cop_warnings, sv); |
2085 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) |
2086 | PL_dowarn |= G_WARN_ONCE ; |
2087 | } |
f4fc7782 |
2088 | |
d3a7d8c7 |
2089 | } |
4438c4b7 |
2090 | } |
971a9dd3 |
2091 | } |
79072805 |
2092 | break; |
2093 | case '.': |
3280af22 |
2094 | if (PL_localizing) { |
2095 | if (PL_localizing == 1) |
7766f137 |
2096 | SAVESPTR(PL_last_in_gv); |
748a9306 |
2097 | } |
3280af22 |
2098 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 |
2099 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 |
2100 | break; |
2101 | case '^': |
3280af22 |
2102 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
2103 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
2104 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
2105 | break; |
2106 | case '~': |
3280af22 |
2107 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
2108 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
2109 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
2110 | break; |
2111 | case '=': |
632db599 |
2112 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2113 | break; |
2114 | case '-': |
632db599 |
2115 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 |
2116 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2117 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
2118 | break; |
2119 | case '%': |
632db599 |
2120 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2121 | break; |
2122 | case '|': |
4b65379b |
2123 | { |
3280af22 |
2124 | IO *io = GvIOp(PL_defoutgv); |
720f287d |
2125 | if(!io) |
2126 | break; |
4b65379b |
2127 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2128 | IoFLAGS(io) &= ~IOf_FLUSH; |
2129 | else { |
2130 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
2131 | PerlIO *ofp = IoOFP(io); |
2132 | if (ofp) |
2133 | (void)PerlIO_flush(ofp); |
2134 | IoFLAGS(io) |= IOf_FLUSH; |
2135 | } |
2136 | } |
79072805 |
2137 | } |
2138 | break; |
2139 | case '*': |
463ee0b2 |
2140 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 |
2141 | PL_multiline = (i != 0); |
79072805 |
2142 | break; |
2143 | case '/': |
3280af22 |
2144 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 |
2145 | PL_rs = newSVsv(sv); |
79072805 |
2146 | break; |
2147 | case '\\': |
7889fe52 |
2148 | if (PL_ors_sv) |
2149 | SvREFCNT_dec(PL_ors_sv); |
009c130f |
2150 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 |
2151 | PL_ors_sv = newSVsv(sv); |
009c130f |
2152 | } |
e3c19b7b |
2153 | else { |
7889fe52 |
2154 | PL_ors_sv = Nullsv; |
e3c19b7b |
2155 | } |
79072805 |
2156 | break; |
2157 | case ',': |
7889fe52 |
2158 | if (PL_ofs_sv) |
2159 | SvREFCNT_dec(PL_ofs_sv); |
2160 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
2161 | PL_ofs_sv = newSVsv(sv); |
2162 | } |
2163 | else { |
2164 | PL_ofs_sv = Nullsv; |
2165 | } |
79072805 |
2166 | break; |
2167 | case '#': |
3280af22 |
2168 | if (PL_ofmt) |
2169 | Safefree(PL_ofmt); |
2d8e6c8d |
2170 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 |
2171 | break; |
2172 | case '[': |
3280af22 |
2173 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
2174 | break; |
2175 | case '?': |
ff0cee69 |
2176 | #ifdef COMPLEX_STATUS |
6b88bc9c |
2177 | if (PL_localizing == 2) { |
2178 | PL_statusvalue = LvTARGOFF(sv); |
2179 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
2180 | } |
2181 | else |
2182 | #endif |
2183 | #ifdef VMSISH_STATUS |
2184 | if (VMSISH_STATUS) |
2185 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
2186 | else |
2187 | #endif |
2188 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
2189 | break; |
2190 | case '!': |
93189314 |
2191 | { |
2192 | #ifdef VMS |
2193 | # define PERL_VMS_BANG vaxc$errno |
2194 | #else |
2195 | # define PERL_VMS_BANG 0 |
2196 | #endif |
91487cfc |
2197 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 |
2198 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2199 | } |
79072805 |
2200 | break; |
2201 | case '<': |
3280af22 |
2202 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2203 | if (PL_delaymagic) { |
2204 | PL_delaymagic |= DM_RUID; |
79072805 |
2205 | break; /* don't do magic till later */ |
2206 | } |
2207 | #ifdef HAS_SETRUID |
b28d0864 |
2208 | (void)setruid((Uid_t)PL_uid); |
79072805 |
2209 | #else |
2210 | #ifdef HAS_SETREUID |
3280af22 |
2211 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
2212 | #else |
85e6fe83 |
2213 | #ifdef HAS_SETRESUID |
b28d0864 |
2214 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
2215 | #else |
b28d0864 |
2216 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2217 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
2218 | else { |
d8eceb89 |
2219 | PL_uid = PerlProc_getuid(); |
cea2e8a9 |
2220 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e |
2221 | } |
79072805 |
2222 | #endif |
2223 | #endif |
85e6fe83 |
2224 | #endif |
d8eceb89 |
2225 | PL_uid = PerlProc_getuid(); |
3280af22 |
2226 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2227 | break; |
2228 | case '>': |
3280af22 |
2229 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2230 | if (PL_delaymagic) { |
2231 | PL_delaymagic |= DM_EUID; |
79072805 |
2232 | break; /* don't do magic till later */ |
2233 | } |
2234 | #ifdef HAS_SETEUID |
3280af22 |
2235 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
2236 | #else |
2237 | #ifdef HAS_SETREUID |
b28d0864 |
2238 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
2239 | #else |
2240 | #ifdef HAS_SETRESUID |
6b88bc9c |
2241 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
2242 | #else |
b28d0864 |
2243 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2244 | PerlProc_setuid(PL_euid); |
a0d0e21e |
2245 | else { |
e8ee3774 |
2246 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 |
2247 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e |
2248 | } |
79072805 |
2249 | #endif |
2250 | #endif |
85e6fe83 |
2251 | #endif |
d8eceb89 |
2252 | PL_euid = PerlProc_geteuid(); |
3280af22 |
2253 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2254 | break; |
2255 | case '(': |
3280af22 |
2256 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2257 | if (PL_delaymagic) { |
2258 | PL_delaymagic |= DM_RGID; |
79072805 |
2259 | break; /* don't do magic till later */ |
2260 | } |
2261 | #ifdef HAS_SETRGID |
b28d0864 |
2262 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
2263 | #else |
2264 | #ifdef HAS_SETREGID |
3280af22 |
2265 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
2266 | #else |
2267 | #ifdef HAS_SETRESGID |
b28d0864 |
2268 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
2269 | #else |
b28d0864 |
2270 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2271 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
2272 | else { |
d8eceb89 |
2273 | PL_gid = PerlProc_getgid(); |
cea2e8a9 |
2274 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 |
2275 | } |
79072805 |
2276 | #endif |
2277 | #endif |
85e6fe83 |
2278 | #endif |
d8eceb89 |
2279 | PL_gid = PerlProc_getgid(); |
3280af22 |
2280 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2281 | break; |
2282 | case ')': |
5cd24f17 |
2283 | #ifdef HAS_SETGROUPS |
2284 | { |
2d8e6c8d |
2285 | char *p = SvPV(sv, len); |
5cd24f17 |
2286 | Groups_t gary[NGROUPS]; |
2287 | |
5cd24f17 |
2288 | while (isSPACE(*p)) |
2289 | ++p; |
2d4389e4 |
2290 | PL_egid = Atol(p); |
5cd24f17 |
2291 | for (i = 0; i < NGROUPS; ++i) { |
2292 | while (*p && !isSPACE(*p)) |
2293 | ++p; |
2294 | while (isSPACE(*p)) |
2295 | ++p; |
2296 | if (!*p) |
2297 | break; |
2d4389e4 |
2298 | gary[i] = Atol(p); |
5cd24f17 |
2299 | } |
8cc95fdb |
2300 | if (i) |
2301 | (void)setgroups(i, gary); |
5cd24f17 |
2302 | } |
2303 | #else /* HAS_SETGROUPS */ |
b28d0864 |
2304 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
2305 | #endif /* HAS_SETGROUPS */ |
3280af22 |
2306 | if (PL_delaymagic) { |
2307 | PL_delaymagic |= DM_EGID; |
79072805 |
2308 | break; /* don't do magic till later */ |
2309 | } |
2310 | #ifdef HAS_SETEGID |
3280af22 |
2311 | (void)setegid((Gid_t)PL_egid); |
79072805 |
2312 | #else |
2313 | #ifdef HAS_SETREGID |
b28d0864 |
2314 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
2315 | #else |
2316 | #ifdef HAS_SETRESGID |
b28d0864 |
2317 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
2318 | #else |
b28d0864 |
2319 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2320 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
2321 | else { |
d8eceb89 |
2322 | PL_egid = PerlProc_getegid(); |
cea2e8a9 |
2323 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 |
2324 | } |
79072805 |
2325 | #endif |
2326 | #endif |
85e6fe83 |
2327 | #endif |
d8eceb89 |
2328 | PL_egid = PerlProc_getegid(); |
3280af22 |
2329 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
2330 | break; |
2331 | case ':': |
2d8e6c8d |
2332 | PL_chopset = SvPV_force(sv,len); |
79072805 |
2333 | break; |
cd39f2b6 |
2334 | #ifndef MACOS_TRADITIONAL |
79072805 |
2335 | case '0': |
e2975953 |
2336 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 |
2337 | #ifdef HAS_SETPROCTITLE |
2338 | /* The BSDs don't show the argv[] in ps(1) output, they |
2339 | * show a string from the process struct and provide |
2340 | * the setproctitle() routine to manipulate that. */ |
2341 | { |
2342 | s = SvPV(sv, len); |
98b76f99 |
2343 | # if __FreeBSD_version > 410001 |
9aad2c0e |
2344 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 |
2345 | * but not the "(perl) suffix from the ps(1) |
2346 | * output, because that's what ps(1) shows if the |
2347 | * argv[] is modified. */ |
6f2ad931 |
2348 | setproctitle("-%s", s); |
9aad2c0e |
2349 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 |
2350 | /* This doesn't really work if you assume that |
2351 | * $0 = 'foobar'; will wipe out 'perl' from the $0 |
2352 | * because in ps(1) output the result will be like |
2353 | * sprintf("perl: %s (perl)", s) |
2354 | * I guess this is a security feature: |
2355 | * one (a user process) cannot get rid of the original name. |
2356 | * --jhi */ |
2357 | setproctitle("%s", s); |
2358 | # endif |
2359 | } |
2360 | #endif |
17aa7f3d |
2361 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2362 | { |
2363 | union pstun un; |
2364 | s = SvPV(sv, len); |
2365 | un.pst_command = s; |
2366 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2367 | } |
2368 | #endif |
3280af22 |
2369 | if (!PL_origalen) { |
2370 | s = PL_origargv[0]; |
79072805 |
2371 | s += strlen(s); |
2372 | /* See if all the arguments are contiguous in memory */ |
3280af22 |
2373 | for (i = 1; i < PL_origargc; i++) { |
2374 | if (PL_origargv[i] == s + 1 |
fb73857a |
2375 | #ifdef OS2 |
6b88bc9c |
2376 | || PL_origargv[i] == s + 2 |
ac27b0f5 |
2377 | #endif |
fb73857a |
2378 | ) |
379c4362 |
2379 | { |
2380 | ++s; |
2381 | s += strlen(s); /* this one is ok too */ |
2382 | } |
fb73857a |
2383 | else |
2384 | break; |
79072805 |
2385 | } |
bbce6d69 |
2386 | /* can grab env area too? */ |
4efc5df6 |
2387 | if (PL_origenviron |
2388 | #ifdef USE_ITHREADS |
2389 | && PL_curinterp == aTHX |
2390 | #endif |
2391 | && (PL_origenviron[0] == s + 1)) |
2392 | { |
66b1d557 |
2393 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
2394 | /* force copy of environment */ |
3280af22 |
2395 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 |
2396 | if (PL_origenviron[i] == s + 1) { |
2397 | ++s; |
2398 | s += strlen(s); |
2399 | } |
fb73857a |
2400 | else |
2401 | break; |
79072805 |
2402 | } |
3280af22 |
2403 | PL_origalen = s - PL_origargv[0]; |
79072805 |
2404 | } |
a0d0e21e |
2405 | s = SvPV_force(sv,len); |
8990e307 |
2406 | i = len; |
eb160463 |
2407 | if (i >= (I32)PL_origalen) { |
3280af22 |
2408 | i = PL_origalen; |
fb73857a |
2409 | /* don't allow system to limit $0 seen by script */ |
2410 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
3280af22 |
2411 | Copy(s, PL_origargv[0], i, char); |
2412 | s = PL_origargv[0]+i; |
fb73857a |
2413 | *s = '\0'; |
79072805 |
2414 | } |
2415 | else { |
3280af22 |
2416 | Copy(s, PL_origargv[0], i, char); |
2417 | s = PL_origargv[0]+i; |
79072805 |
2418 | *s++ = '\0'; |
eb160463 |
2419 | while (++i < (I32)PL_origalen) |
f1c3b2ef |
2420 | *s++ = '\0'; |
3280af22 |
2421 | for (i = 1; i < PL_origargc; i++) |
2422 | PL_origargv[i] = Nullch; |
79072805 |
2423 | } |
e2975953 |
2424 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 |
2425 | break; |
cd39f2b6 |
2426 | #endif |
79072805 |
2427 | } |
2428 | return 0; |
2429 | } |
2430 | |
2431 | I32 |
864dbfa3 |
2432 | Perl_whichsig(pTHX_ char *sig) |
79072805 |
2433 | { |
2434 | register char **sigv; |
2435 | |
22c35a8c |
2436 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 |
2437 | if (strEQ(sig,*sigv)) |
22c35a8c |
2438 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 |
2439 | #ifdef SIGCLD |
2440 | if (strEQ(sig,"CHLD")) |
2441 | return SIGCLD; |
2442 | #endif |
2443 | #ifdef SIGCHLD |
2444 | if (strEQ(sig,"CLD")) |
2445 | return SIGCHLD; |
2446 | #endif |
2447 | return 0; |
2448 | } |
2449 | |
df3728a2 |
2450 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 |
2451 | static SV* sig_sv; |
df3728a2 |
2452 | #endif |
84902520 |
2453 | |
ecfc5424 |
2454 | Signal_t |
cea2e8a9 |
2455 | Perl_sighandler(int sig) |
79072805 |
2456 | { |
1018e26f |
2457 | #ifdef PERL_GET_SIG_CONTEXT |
2458 | dTHXa(PERL_GET_SIG_CONTEXT); |
71d280e3 |
2459 | #else |
cea2e8a9 |
2460 | dTHX; |
71d280e3 |
2461 | #endif |
79072805 |
2462 | dSP; |
00d579c5 |
2463 | GV *gv = Nullgv; |
a0d0e21e |
2464 | HV *st; |
b7953727 |
2465 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 |
2466 | CV *cv = Nullcv; |
533c011a |
2467 | OP *myop = PL_op; |
84902520 |
2468 | U32 flags = 0; |
3280af22 |
2469 | XPV *tXpv = PL_Xpv; |
71d280e3 |
2470 | |
3280af22 |
2471 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2472 | flags |= 1; |
3280af22 |
2473 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2474 | flags |= 4; |
3280af22 |
2475 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 |
2476 | flags |= 8; |
3280af22 |
2477 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2478 | flags |= 16; |
2479 | |
727405f8 |
2480 | if (!PL_psig_ptr[sig]) { |
99ef548b |
2481 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 |
2482 | PL_sig_name[sig]); |
2483 | exit(sig); |
2484 | } |
ff0cee69 |
2485 | |
84902520 |
2486 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2487 | infinity, so we fix 4 (in fact 5): */ |
2488 | if (flags & 1) { |
3280af22 |
2489 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee |
2490 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 |
2491 | } |
ac27b0f5 |
2492 | if (flags & 4) |
3280af22 |
2493 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2494 | if (flags & 8) { |
3280af22 |
2495 | PL_retstack_ix++; |
2496 | PL_retstack[PL_retstack_ix] = NULL; |
84902520 |
2497 | } |
2498 | if (flags & 16) |
3280af22 |
2499 | PL_scopestack_ix += 1; |
84902520 |
2500 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 |
2501 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 |
2502 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c |
2503 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 |
2504 | |
a0d0e21e |
2505 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2506 | if (ckWARN(WARN_SIGNAL)) |
9014280d |
2507 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c |
2508 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 |
2509 | : ((cv && CvGV(cv)) |
2510 | ? GvENAME(CvGV(cv)) |
2511 | : "__ANON__"))); |
2512 | goto cleanup; |
79072805 |
2513 | } |
2514 | |
22c35a8c |
2515 | if(PL_psig_name[sig]) { |
2516 | sv = SvREFCNT_inc(PL_psig_name[sig]); |
84902520 |
2517 | flags |= 64; |
df3728a2 |
2518 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 |
2519 | sig_sv = sv; |
df3728a2 |
2520 | #endif |
84902520 |
2521 | } else { |
ff0cee69 |
2522 | sv = sv_newmortal(); |
22c35a8c |
2523 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a |
2524 | } |
e336de0d |
2525 | |
e788e7d3 |
2526 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2527 | PUSHMARK(SP); |
79072805 |
2528 | PUSHs(sv); |
79072805 |
2529 | PUTBACK; |
a0d0e21e |
2530 | |
1b266415 |
2531 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 |
2532 | |
d3acc0f7 |
2533 | POPSTACK; |
1b266415 |
2534 | if (SvTRUE(ERRSV)) { |
1d615522 |
2535 | #ifndef PERL_MICRO |
983dbef6 |
2536 | #ifdef HAS_SIGPROCMASK |
1b266415 |
2537 | /* Handler "died", for example to get out of a restart-able read(). |
2538 | * Before we re-do that on its behalf re-enable the signal which was |
2539 | * blocked by the system when we entered. |
2540 | */ |
2541 | sigset_t set; |
2542 | sigemptyset(&set); |
2543 | sigaddset(&set,sig); |
2544 | sigprocmask(SIG_UNBLOCK, &set, NULL); |
2545 | #else |
2546 | /* Not clear if this will work */ |
2547 | (void)rsignal(sig, SIG_IGN); |
0a8e0eff |
2548 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 |
2549 | #endif |
1d615522 |
2550 | #endif /* !PERL_MICRO */ |
b3fe4827 |
2551 | Perl_die(aTHX_ Nullformat); |
1b266415 |
2552 | } |
00d579c5 |
2553 | cleanup: |
84902520 |
2554 | if (flags & 1) |
3280af22 |
2555 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 |
2556 | if (flags & 4) |
3280af22 |
2557 | PL_markstack_ptr--; |
ac27b0f5 |
2558 | if (flags & 8) |
3280af22 |
2559 | PL_retstack_ix--; |
84902520 |
2560 | if (flags & 16) |
3280af22 |
2561 | PL_scopestack_ix -= 1; |
84902520 |
2562 | if (flags & 64) |
2563 | SvREFCNT_dec(sv); |
533c011a |
2564 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 |
2565 | |
3280af22 |
2566 | PL_Sv = tSv; /* Restore global temporaries. */ |
2567 | PL_Xpv = tXpv; |
79072805 |
2568 | return; |
2569 | } |
4e35701f |
2570 | |
2571 | |
51371543 |
2572 | static void |
acfe0abc |
2573 | restore_magic(pTHX_ void *p) |
51371543 |
2574 | { |
48944bdf |
2575 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 |
2576 | SV* sv = mgs->mgs_sv; |
2577 | |
2578 | if (!sv) |
2579 | return; |
2580 | |
2581 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
2582 | { |
2583 | if (mgs->mgs_flags) |
2584 | SvFLAGS(sv) |= mgs->mgs_flags; |
2585 | else |
2586 | mg_magical(sv); |
2587 | if (SvGMAGICAL(sv)) |
2588 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
2589 | } |
2590 | |
2591 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ |
2592 | |
2593 | /* If we're still on top of the stack, pop us off. (That condition |
2594 | * will be satisfied if restore_magic was called explicitly, but *not* |
2595 | * if it's being called via leave_scope.) |
2596 | * The reason for doing this is that otherwise, things like sv_2cv() |
2597 | * may leave alloc gunk on the savestack, and some code |
2598 | * (e.g. sighandler) doesn't expect that... |
2599 | */ |
2600 | if (PL_savestack_ix == mgs->mgs_ss_ix) |
2601 | { |
2602 | I32 popval = SSPOPINT; |
c76ac1ee |
2603 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 |
2604 | PL_savestack_ix -= 2; |
2605 | popval = SSPOPINT; |
2606 | assert(popval == SAVEt_ALLOC); |
2607 | popval = SSPOPINT; |
2608 | PL_savestack_ix -= popval; |
2609 | } |
2610 | |
2611 | } |
2612 | |
2613 | static void |
acfe0abc |
2614 | unwind_handler_stack(pTHX_ void *p) |
51371543 |
2615 | { |
51371543 |
2616 | U32 flags = *(U32*)p; |
2617 | |
2618 | if (flags & 1) |
2619 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
2620 | /* cxstack_ix-- Not needed, die already unwound it. */ |
df3728a2 |
2621 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 |
2622 | if (flags & 64) |
2623 | SvREFCNT_dec(sig_sv); |
df3728a2 |
2624 | #endif |
51371543 |
2625 | } |
1018e26f |
2626 | |
2627 | |