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