Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
3818b22b | 3 | * Copyright (c) 1991-2000, Larry Wall |
79072805 LW |
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 LW |
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 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
864dbfa3 | 16 | #define PERL_IN_MG_C |
79072805 LW |
17 | #include "perl.h" |
18 | ||
5cd24f17 | 19 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
20 | # ifndef NGROUPS |
21 | # define NGROUPS 32 | |
22 | # endif | |
23 | #endif | |
24 | ||
51371543 GS |
25 | static void restore_magic(pTHXo_ void *p); |
26 | static void unwind_handler_stack(pTHXo_ void *p); | |
27 | ||
c07a80fd | 28 | /* |
29 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
30 | */ | |
31 | ||
32 | struct magic_state { | |
33 | SV* mgs_sv; | |
34 | U32 mgs_flags; | |
455ece5e | 35 | I32 mgs_ss_ix; |
c07a80fd | 36 | }; |
455ece5e | 37 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
38 | |
39 | STATIC void | |
cea2e8a9 | 40 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 41 | { |
46124e9e | 42 | dTHR; |
455ece5e | 43 | MGS* mgs; |
c07a80fd | 44 | assert(SvMAGICAL(sv)); |
45 | ||
c76ac1ee | 46 | SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix); |
455ece5e AD |
47 | |
48 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 49 | mgs->mgs_sv = sv; |
50 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 51 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 52 | |
53 | SvMAGICAL_off(sv); | |
54 | SvREADONLY_off(sv); | |
55 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 56 | } |
57 | ||
954c1994 GS |
58 | /* |
59 | =for apidoc mg_magical | |
60 | ||
61 | Turns on the magical status of an SV. See C<sv_magic>. | |
62 | ||
63 | =cut | |
64 | */ | |
65 | ||
8990e307 | 66 | void |
864dbfa3 | 67 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
68 | { |
69 | MAGIC* mg; | |
70 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
71 | MGVTBL* vtbl = mg->mg_virtual; | |
72 | if (vtbl) { | |
2b260de0 | 73 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
74 | SvGMAGICAL_on(sv); |
75 | if (vtbl->svt_set) | |
76 | SvSMAGICAL_on(sv); | |
2b260de0 | 77 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
78 | SvRMAGICAL_on(sv); |
79 | } | |
80 | } | |
81 | } | |
82 | ||
954c1994 GS |
83 | /* |
84 | =for apidoc mg_get | |
85 | ||
86 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
87 | ||
88 | =cut | |
89 | */ | |
90 | ||
79072805 | 91 | int |
864dbfa3 | 92 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 93 | { |
46124e9e | 94 | dTHR; |
455ece5e | 95 | I32 mgs_ix; |
79072805 | 96 | MAGIC* mg; |
c6496cc7 | 97 | MAGIC** mgp; |
760ac839 | 98 | int mgp_valid = 0; |
463ee0b2 | 99 | |
455ece5e AD |
100 | mgs_ix = SSNEW(sizeof(MGS)); |
101 | save_magic(mgs_ix, sv); | |
463ee0b2 | 102 | |
c6496cc7 | 103 | mgp = &SvMAGIC(sv); |
104 | while ((mg = *mgp) != 0) { | |
79072805 | 105 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 | 106 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 107 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 | 108 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
109 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
110 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 111 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 112 | } |
c6496cc7 | 113 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 114 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 115 | mgp = &mg->mg_moremagic; |
760ac839 LW |
116 | mgp_valid = 1; |
117 | } | |
118 | else | |
119 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 120 | } |
463ee0b2 | 121 | |
51371543 | 122 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
123 | return 0; |
124 | } | |
125 | ||
954c1994 GS |
126 | /* |
127 | =for apidoc mg_set | |
128 | ||
129 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
130 | ||
131 | =cut | |
132 | */ | |
133 | ||
79072805 | 134 | int |
864dbfa3 | 135 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 136 | { |
46124e9e | 137 | dTHR; |
455ece5e | 138 | I32 mgs_ix; |
79072805 | 139 | MAGIC* mg; |
463ee0b2 LW |
140 | MAGIC* nextmg; |
141 | ||
455ece5e AD |
142 | mgs_ix = SSNEW(sizeof(MGS)); |
143 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
144 | |
145 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 146 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 147 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
148 | if (mg->mg_flags & MGf_GSKIP) { |
149 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 150 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 151 | } |
2b260de0 | 152 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 153 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 154 | } |
463ee0b2 | 155 | |
51371543 | 156 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
157 | return 0; |
158 | } | |
159 | ||
954c1994 GS |
160 | /* |
161 | =for apidoc mg_length | |
162 | ||
163 | Report on the SV's length. See C<sv_magic>. | |
164 | ||
165 | =cut | |
166 | */ | |
167 | ||
79072805 | 168 | U32 |
864dbfa3 | 169 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
170 | { |
171 | MAGIC* mg; | |
748a9306 | 172 | char *junk; |
463ee0b2 | 173 | STRLEN len; |
463ee0b2 | 174 | |
79072805 LW |
175 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
176 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 177 | if (vtbl && vtbl->svt_len) { |
455ece5e | 178 | I32 mgs_ix; |
48e43a1c | 179 | |
455ece5e AD |
180 | mgs_ix = SSNEW(sizeof(MGS)); |
181 | save_magic(mgs_ix, sv); | |
a0d0e21e | 182 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 183 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 184 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 LW |
185 | return len; |
186 | } | |
187 | } | |
188 | ||
748a9306 | 189 | junk = SvPV(sv, len); |
463ee0b2 | 190 | return len; |
79072805 LW |
191 | } |
192 | ||
93965878 | 193 | I32 |
864dbfa3 | 194 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
195 | { |
196 | MAGIC* mg; | |
197 | I32 len; | |
ac27b0f5 | 198 | |
93965878 NIS |
199 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
200 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 201 | if (vtbl && vtbl->svt_len) { |
455ece5e AD |
202 | I32 mgs_ix; |
203 | ||
204 | mgs_ix = SSNEW(sizeof(MGS)); | |
205 | save_magic(mgs_ix, sv); | |
93965878 | 206 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 207 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 208 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 NIS |
209 | return len; |
210 | } | |
211 | } | |
212 | ||
213 | switch(SvTYPE(sv)) { | |
214 | case SVt_PVAV: | |
215 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
216 | return len; | |
217 | case SVt_PVHV: | |
218 | /* FIXME */ | |
219 | default: | |
cea2e8a9 | 220 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
221 | break; |
222 | } | |
223 | return 0; | |
224 | } | |
225 | ||
954c1994 GS |
226 | /* |
227 | =for apidoc mg_clear | |
228 | ||
229 | Clear something magical that the SV represents. See C<sv_magic>. | |
230 | ||
231 | =cut | |
232 | */ | |
233 | ||
79072805 | 234 | int |
864dbfa3 | 235 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 236 | { |
455ece5e | 237 | I32 mgs_ix; |
79072805 | 238 | MAGIC* mg; |
463ee0b2 | 239 | |
455ece5e AD |
240 | mgs_ix = SSNEW(sizeof(MGS)); |
241 | save_magic(mgs_ix, sv); | |
463ee0b2 | 242 | |
79072805 LW |
243 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
244 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
245 | /* omit GSKIP -- never set here */ |
246 | ||
2b260de0 | 247 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 248 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 249 | } |
463ee0b2 | 250 | |
51371543 | 251 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
252 | return 0; |
253 | } | |
254 | ||
954c1994 GS |
255 | /* |
256 | =for apidoc mg_find | |
257 | ||
258 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
259 | ||
260 | =cut | |
261 | */ | |
262 | ||
93a17b20 | 263 | MAGIC* |
864dbfa3 | 264 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
265 | { |
266 | MAGIC* mg; | |
93a17b20 LW |
267 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
268 | if (mg->mg_type == type) | |
269 | return mg; | |
270 | } | |
271 | return 0; | |
272 | } | |
273 | ||
954c1994 GS |
274 | /* |
275 | =for apidoc mg_copy | |
276 | ||
277 | Copies the magic from one SV to another. See C<sv_magic>. | |
278 | ||
279 | =cut | |
280 | */ | |
281 | ||
79072805 | 282 | int |
864dbfa3 | 283 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 284 | { |
463ee0b2 | 285 | int count = 0; |
79072805 | 286 | MAGIC* mg; |
463ee0b2 LW |
287 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
288 | if (isUPPER(mg->mg_type)) { | |
33c27489 | 289 | sv_magic(nsv, |
fd345fa8 MG |
290 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : |
291 | (mg->mg_type == 'D' && mg->mg_obj) ? sv : mg->mg_obj, | |
33c27489 | 292 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 293 | count++; |
79072805 | 294 | } |
79072805 | 295 | } |
463ee0b2 | 296 | return count; |
79072805 LW |
297 | } |
298 | ||
954c1994 GS |
299 | /* |
300 | =for apidoc mg_free | |
301 | ||
302 | Free any magic storage used by the SV. See C<sv_magic>. | |
303 | ||
304 | =cut | |
305 | */ | |
306 | ||
79072805 | 307 | int |
864dbfa3 | 308 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
309 | { |
310 | MAGIC* mg; | |
311 | MAGIC* moremagic; | |
312 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
313 | MGVTBL* vtbl = mg->mg_virtual; | |
314 | moremagic = mg->mg_moremagic; | |
2b260de0 | 315 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 316 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
93a17b20 | 317 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 318 | if (mg->mg_len >= 0) |
88e89b8a | 319 | Safefree(mg->mg_ptr); |
565764a8 | 320 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 321 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 322 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 323 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
324 | Safefree(mg); |
325 | } | |
326 | SvMAGIC(sv) = 0; | |
327 | return 0; | |
328 | } | |
329 | ||
330 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
331 | #include <signal.h> | |
332 | #endif | |
333 | ||
942e002e | 334 | U32 |
864dbfa3 | 335 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
336 | { |
337 | dTHR; | |
6cef1e77 | 338 | register REGEXP *rx; |
6cef1e77 | 339 | |
8f580fb8 IZ |
340 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
341 | if (mg->mg_obj) /* @+ */ | |
342 | return rx->nparens; | |
343 | else /* @- */ | |
344 | return rx->lastparen; | |
345 | } | |
ac27b0f5 | 346 | |
942e002e | 347 | return (U32)-1; |
6cef1e77 IZ |
348 | } |
349 | ||
350 | int | |
864dbfa3 | 351 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
352 | { |
353 | dTHR; | |
354 | register I32 paren; | |
cf93c79d | 355 | register I32 s; |
6cef1e77 IZ |
356 | register I32 i; |
357 | register REGEXP *rx; | |
cf93c79d | 358 | I32 t; |
6cef1e77 IZ |
359 | |
360 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
361 | paren = mg->mg_len; | |
362 | if (paren < 0) | |
363 | return 0; | |
364 | if (paren <= rx->nparens && | |
cf93c79d IZ |
365 | (s = rx->startp[paren]) != -1 && |
366 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
367 | { |
368 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 369 | i = t; |
6cef1e77 | 370 | else /* @- */ |
cf93c79d | 371 | i = s; |
6cef1e77 IZ |
372 | sv_setiv(sv,i); |
373 | } | |
374 | } | |
375 | return 0; | |
376 | } | |
377 | ||
e4b89193 | 378 | int |
a29d06ed MG |
379 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
380 | { | |
381 | dTHR; | |
382 | Perl_croak(aTHX_ PL_no_modify); | |
e4b89193 GS |
383 | /* NOT REACHED */ |
384 | return 0; | |
a29d06ed MG |
385 | } |
386 | ||
93a17b20 | 387 | U32 |
864dbfa3 | 388 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 389 | { |
a863c7d1 | 390 | dTHR; |
93a17b20 | 391 | register I32 paren; |
93a17b20 | 392 | register I32 i; |
d9f97599 | 393 | register REGEXP *rx; |
a197cbdd | 394 | I32 s1, t1; |
93a17b20 LW |
395 | |
396 | switch (*mg->mg_ptr) { | |
397 | case '1': case '2': case '3': case '4': | |
398 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 399 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d | 400 | |
93a17b20 LW |
401 | paren = atoi(mg->mg_ptr); |
402 | getparen: | |
d9f97599 | 403 | if (paren <= rx->nparens && |
cf93c79d IZ |
404 | (s1 = rx->startp[paren]) != -1 && |
405 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 406 | { |
cf93c79d | 407 | i = t1 - s1; |
a197cbdd GS |
408 | getlen: |
409 | if (i > 0 && (PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { | |
410 | char *s = rx->subbeg + s1; | |
411 | char *send = rx->subbeg + t1; | |
412 | i = 0; | |
413 | while (s < send) { | |
414 | s += UTF8SKIP(s); | |
415 | i++; | |
416 | } | |
417 | } | |
71be2cbc | 418 | if (i >= 0) |
93a17b20 | 419 | return i; |
93a17b20 | 420 | } |
93a17b20 | 421 | } |
748a9306 | 422 | return 0; |
93a17b20 | 423 | case '+': |
3280af22 | 424 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 425 | paren = rx->lastparen; |
13f57bf8 CS |
426 | if (paren) |
427 | goto getparen; | |
93a17b20 | 428 | } |
748a9306 | 429 | return 0; |
93a17b20 | 430 | case '`': |
3280af22 | 431 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
432 | if (rx->startp[0] != -1) { |
433 | i = rx->startp[0]; | |
a197cbdd GS |
434 | if (i > 0) { |
435 | s1 = 0; | |
436 | t1 = i; | |
437 | goto getlen; | |
438 | } | |
93a17b20 | 439 | } |
93a17b20 | 440 | } |
748a9306 | 441 | return 0; |
93a17b20 | 442 | case '\'': |
3280af22 | 443 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
444 | if (rx->endp[0] != -1) { |
445 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
446 | if (i > 0) { |
447 | s1 = rx->endp[0]; | |
448 | t1 = rx->sublen; | |
449 | goto getlen; | |
450 | } | |
93a17b20 | 451 | } |
93a17b20 | 452 | } |
748a9306 | 453 | return 0; |
93a17b20 | 454 | case ',': |
3280af22 | 455 | return (STRLEN)PL_ofslen; |
93a17b20 | 456 | case '\\': |
3280af22 | 457 | return (STRLEN)PL_orslen; |
93a17b20 LW |
458 | } |
459 | magic_get(sv,mg); | |
2d8e6c8d GS |
460 | if (!SvPOK(sv) && SvNIOK(sv)) { |
461 | STRLEN n_a; | |
462 | sv_2pv(sv, &n_a); | |
463 | } | |
93a17b20 LW |
464 | if (SvPOK(sv)) |
465 | return SvCUR(sv); | |
466 | return 0; | |
467 | } | |
468 | ||
79072805 | 469 | int |
864dbfa3 | 470 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 471 | { |
a863c7d1 | 472 | dTHR; |
79072805 LW |
473 | register I32 paren; |
474 | register char *s; | |
475 | register I32 i; | |
d9f97599 | 476 | register REGEXP *rx; |
79072805 LW |
477 | |
478 | switch (*mg->mg_ptr) { | |
748a9306 | 479 | case '\001': /* ^A */ |
3280af22 | 480 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 481 | break; |
49460fe6 NIS |
482 | case '\003': /* ^C */ |
483 | sv_setiv(sv, (IV)PL_minus_c); | |
484 | break; | |
485 | ||
79072805 | 486 | case '\004': /* ^D */ |
3280af22 | 487 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
d056ab3f GS |
488 | #if defined(YYDEBUG) && defined(DEBUGGING) |
489 | PL_yydebug = (PL_debug & 1); | |
490 | #endif | |
79072805 | 491 | break; |
28f23441 | 492 | case '\005': /* ^E */ |
cd39f2b6 JH |
493 | #ifdef MACOS_TRADITIONAL |
494 | { | |
495 | char msg[256]; | |
ac27b0f5 | 496 | |
bf4acbe4 GS |
497 | sv_setnv(sv,(double)gMacPerl_OSErr); |
498 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
cd39f2b6 JH |
499 | } |
500 | #else | |
28f23441 | 501 | #ifdef VMS |
502 | { | |
503 | # include <descrip.h> | |
504 | # include <starlet.h> | |
505 | char msg[255]; | |
506 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 507 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 508 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
509 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
510 | else | |
511 | sv_setpv(sv,""); | |
512 | } | |
513 | #else | |
88e89b8a | 514 | #ifdef OS2 |
fb73857a | 515 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 516 | sv_setnv(sv, (NV)errno); |
fb73857a | 517 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
518 | } else { | |
017f25f1 IZ |
519 | if (errno != errno_isOS2) { |
520 | int tmp = _syserrno(); | |
521 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
522 | Perl_rc = tmp; | |
523 | } | |
65202027 | 524 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 525 | sv_setpv(sv, os2error(Perl_rc)); |
526 | } | |
88e89b8a | 527 | #else |
22fae026 TM |
528 | #ifdef WIN32 |
529 | { | |
530 | DWORD dwErr = GetLastError(); | |
65202027 | 531 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 532 | if (dwErr) |
76e3520e | 533 | { |
0cb96387 | 534 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 535 | } |
22fae026 TM |
536 | else |
537 | sv_setpv(sv, ""); | |
538 | SetLastError(dwErr); | |
539 | } | |
540 | #else | |
65202027 | 541 | sv_setnv(sv, (NV)errno); |
28f23441 | 542 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
543 | #endif | |
88e89b8a | 544 | #endif |
22fae026 | 545 | #endif |
cd39f2b6 | 546 | #endif |
946ec16e | 547 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 548 | break; |
79072805 | 549 | case '\006': /* ^F */ |
3280af22 | 550 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 551 | break; |
a0d0e21e | 552 | case '\010': /* ^H */ |
3280af22 | 553 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 554 | break; |
9d116dd7 | 555 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
556 | if (PL_inplace) |
557 | sv_setpv(sv, PL_inplace); | |
79072805 | 558 | else |
3280af22 | 559 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 560 | break; |
ac27b0f5 NIS |
561 | case '\017': /* ^O & ^OPEN */ |
562 | if (*(mg->mg_ptr+1) == '\0') | |
563 | sv_setpv(sv, PL_osname); | |
564 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
565 | if (!PL_compiling.cop_io) | |
566 | sv_setsv(sv, &PL_sv_undef); | |
567 | else { | |
568 | sv_setsv(sv, PL_compiling.cop_io); | |
569 | } | |
570 | } | |
28f23441 | 571 | break; |
79072805 | 572 | case '\020': /* ^P */ |
3280af22 | 573 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 574 | break; |
fb73857a | 575 | case '\023': /* ^S */ |
d58bf5aa MB |
576 | { |
577 | dTHR; | |
3280af22 | 578 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 579 | (void)SvOK_off(sv); |
3280af22 | 580 | else if (PL_in_eval) |
6dc8a9e4 | 581 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
d58bf5aa | 582 | } |
fb73857a | 583 | break; |
79072805 | 584 | case '\024': /* ^T */ |
88e89b8a | 585 | #ifdef BIG_TIME |
6b88bc9c | 586 | sv_setnv(sv, PL_basetime); |
88e89b8a | 587 | #else |
3280af22 | 588 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 589 | #endif |
79072805 | 590 | break; |
46487f74 | 591 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
592 | if (*(mg->mg_ptr+1) == '\0') |
593 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 594 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
595 | if (PL_compiling.cop_warnings == pWARN_NONE || |
596 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
597 | { |
598 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
599 | } | |
d3a7d8c7 | 600 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 601 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 602 | } |
4438c4b7 JH |
603 | else { |
604 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 605 | } |
d3a7d8c7 | 606 | SvPOK_only(sv); |
4438c4b7 | 607 | } |
46487f74 GS |
608 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
609 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
610 | break; |
611 | case '1': case '2': case '3': case '4': | |
612 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 613 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
614 | I32 s1, t1; |
615 | ||
a863c7d1 MB |
616 | /* |
617 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
618 | * XXX Does the new way break anything? | |
619 | */ | |
620 | paren = atoi(mg->mg_ptr); | |
79072805 | 621 | getparen: |
d9f97599 | 622 | if (paren <= rx->nparens && |
cf93c79d IZ |
623 | (s1 = rx->startp[paren]) != -1 && |
624 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 625 | { |
cf93c79d IZ |
626 | i = t1 - s1; |
627 | s = rx->subbeg + s1; | |
01ec43d0 | 628 | if (!rx->subbeg) |
c2e66d9e GS |
629 | break; |
630 | ||
13f57bf8 | 631 | getrx: |
748a9306 | 632 | if (i >= 0) { |
13f57bf8 | 633 | bool was_tainted; |
3280af22 NIS |
634 | if (PL_tainting) { |
635 | was_tainted = PL_tainted; | |
636 | PL_tainted = FALSE; | |
13f57bf8 | 637 | } |
cf93c79d | 638 | sv_setpvn(sv, s, i); |
7e2040f0 GS |
639 | if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) |
640 | SvUTF8_on(sv); | |
641 | else | |
642 | SvUTF8_off(sv); | |
3280af22 NIS |
643 | if (PL_tainting) |
644 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
645 | break; |
646 | } | |
79072805 | 647 | } |
79072805 | 648 | } |
3280af22 | 649 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
650 | break; |
651 | case '+': | |
3280af22 | 652 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 653 | paren = rx->lastparen; |
a0d0e21e LW |
654 | if (paren) |
655 | goto getparen; | |
79072805 | 656 | } |
3280af22 | 657 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
658 | break; |
659 | case '`': | |
3280af22 | 660 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
661 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
662 | i = rx->startp[0]; | |
13f57bf8 | 663 | goto getrx; |
79072805 | 664 | } |
79072805 | 665 | } |
3280af22 | 666 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
667 | break; |
668 | case '\'': | |
3280af22 | 669 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
670 | if (rx->subbeg && rx->endp[0] != -1) { |
671 | s = rx->subbeg + rx->endp[0]; | |
672 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 673 | goto getrx; |
79072805 | 674 | } |
79072805 | 675 | } |
3280af22 | 676 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
677 | break; |
678 | case '.': | |
679 | #ifndef lint | |
3280af22 NIS |
680 | if (GvIO(PL_last_in_gv)) { |
681 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
682 | } |
683 | #endif | |
684 | break; | |
685 | case '?': | |
809a5acc | 686 | { |
809a5acc | 687 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 688 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
689 | LvTARGOFF(sv) = PL_statusvalue; |
690 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 691 | #endif |
809a5acc | 692 | } |
79072805 LW |
693 | break; |
694 | case '^': | |
3280af22 | 695 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
696 | if (s) |
697 | sv_setpv(sv,s); | |
698 | else { | |
3280af22 | 699 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
700 | sv_catpv(sv,"_TOP"); |
701 | } | |
702 | break; | |
703 | case '~': | |
3280af22 | 704 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 705 | if (!s) |
3280af22 | 706 | s = GvENAME(PL_defoutgv); |
79072805 LW |
707 | sv_setpv(sv,s); |
708 | break; | |
709 | #ifndef lint | |
710 | case '=': | |
3280af22 | 711 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
712 | break; |
713 | case '-': | |
3280af22 | 714 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
715 | break; |
716 | case '%': | |
3280af22 | 717 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
718 | break; |
719 | #endif | |
720 | case ':': | |
721 | break; | |
722 | case '/': | |
723 | break; | |
724 | case '[': | |
3280af22 | 725 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
726 | break; |
727 | case '|': | |
3280af22 | 728 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
729 | break; |
730 | case ',': | |
3280af22 | 731 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
732 | break; |
733 | case '\\': | |
3280af22 | 734 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
735 | break; |
736 | case '#': | |
3280af22 | 737 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
738 | break; |
739 | case '!': | |
a5f75d66 | 740 | #ifdef VMS |
65202027 | 741 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 742 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 743 | #else |
88e89b8a | 744 | { |
745 | int saveerrno = errno; | |
65202027 | 746 | sv_setnv(sv, (NV)errno); |
88e89b8a | 747 | #ifdef OS2 |
ed344e4f IZ |
748 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
749 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 750 | else |
a5f75d66 | 751 | #endif |
2304df62 | 752 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 753 | errno = saveerrno; |
754 | } | |
755 | #endif | |
946ec16e | 756 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
757 | break; |
758 | case '<': | |
3280af22 | 759 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
760 | break; |
761 | case '>': | |
3280af22 | 762 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
763 | break; |
764 | case '(': | |
3280af22 | 765 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 766 | #ifdef HAS_GETGROUPS |
785fb66b | 767 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 768 | #endif |
79072805 LW |
769 | goto add_groups; |
770 | case ')': | |
3280af22 | 771 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 772 | #ifdef HAS_GETGROUPS |
785fb66b | 773 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 774 | #endif |
79072805 | 775 | add_groups: |
79072805 | 776 | #ifdef HAS_GETGROUPS |
79072805 | 777 | { |
a0d0e21e | 778 | Groups_t gary[NGROUPS]; |
79072805 | 779 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 780 | while (--i >= 0) |
785fb66b | 781 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
782 | } |
783 | #endif | |
155aba94 | 784 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
785 | break; |
786 | case '*': | |
787 | break; | |
cd39f2b6 | 788 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
789 | case '0': |
790 | break; | |
cd39f2b6 | 791 | #endif |
a863c7d1 MB |
792 | #ifdef USE_THREADS |
793 | case '@': | |
38a03e6e | 794 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
795 | break; |
796 | #endif /* USE_THREADS */ | |
79072805 | 797 | } |
a0d0e21e | 798 | return 0; |
79072805 LW |
799 | } |
800 | ||
801 | int | |
864dbfa3 | 802 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
803 | { |
804 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
805 | ||
806 | if (uf && uf->uf_val) | |
807 | (*uf->uf_val)(uf->uf_index, sv); | |
808 | return 0; | |
809 | } | |
810 | ||
811 | int | |
864dbfa3 | 812 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
813 | { |
814 | register char *s; | |
88e89b8a | 815 | char *ptr; |
5aabfad6 | 816 | STRLEN len, klen; |
a0d0e21e | 817 | I32 i; |
1e422769 | 818 | |
a0d0e21e | 819 | s = SvPV(sv,len); |
5aabfad6 | 820 | ptr = MgPV(mg,klen); |
88e89b8a | 821 | my_setenv(ptr, s); |
1e422769 | 822 | |
a0d0e21e LW |
823 | #ifdef DYNAMIC_ENV_FETCH |
824 | /* We just undefd an environment var. Is a replacement */ | |
825 | /* waiting in the wings? */ | |
826 | if (!len) { | |
5aabfad6 | 827 | SV **valp; |
6b88bc9c | 828 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 829 | s = SvPV(*valp, len); |
a0d0e21e LW |
830 | } |
831 | #endif | |
1e422769 | 832 | |
39e571d4 | 833 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
834 | /* And you'll never guess what the dog had */ |
835 | /* in its mouth... */ | |
3280af22 | 836 | if (PL_tainting) { |
1e422769 | 837 | MgTAINTEDDIR_off(mg); |
838 | #ifdef VMS | |
5aabfad6 | 839 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 840 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
841 | struct stat sbuf; | |
842 | int i = 0, j = 0; | |
843 | ||
844 | do { /* DCL$PATH may be a search list */ | |
845 | while (1) { /* as may dev portion of any element */ | |
846 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
847 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
848 | cando_by_name(S_IWUSR,0,elt) ) { | |
849 | MgTAINTEDDIR_on(mg); | |
850 | return 0; | |
851 | } | |
852 | } | |
853 | if ((cp = strchr(elt, ':')) != Nullch) | |
854 | *cp = '\0'; | |
855 | if (my_trnlnm(elt, eltbuf, j++)) | |
856 | elt = eltbuf; | |
857 | else | |
858 | break; | |
859 | } | |
860 | j = 0; | |
861 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
862 | } | |
863 | #endif /* VMS */ | |
5aabfad6 | 864 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 865 | char *strend = s + len; |
463ee0b2 LW |
866 | |
867 | while (s < strend) { | |
96827780 | 868 | char tmpbuf[256]; |
1e422769 | 869 | struct stat st; |
96827780 | 870 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 871 | s, strend, ':', &i); |
463ee0b2 | 872 | s++; |
96827780 MB |
873 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
874 | || *tmpbuf != '/' | |
c6ed36e1 | 875 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 876 | MgTAINTEDDIR_on(mg); |
1e422769 | 877 | return 0; |
878 | } | |
463ee0b2 | 879 | } |
79072805 LW |
880 | } |
881 | } | |
39e571d4 | 882 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 883 | |
79072805 LW |
884 | return 0; |
885 | } | |
886 | ||
887 | int | |
864dbfa3 | 888 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 889 | { |
2d8e6c8d GS |
890 | STRLEN n_a; |
891 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
892 | return 0; |
893 | } | |
894 | ||
88e89b8a | 895 | int |
864dbfa3 | 896 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 897 | { |
898 | #if defined(VMS) | |
cea2e8a9 | 899 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 900 | #else |
d58bf5aa | 901 | dTHR; |
3280af22 | 902 | if (PL_localizing) { |
fb73857a | 903 | HE* entry; |
2d8e6c8d | 904 | STRLEN n_a; |
fb73857a | 905 | magic_clear_all_env(sv,mg); |
906 | hv_iterinit((HV*)sv); | |
155aba94 | 907 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 908 | I32 keylen; |
909 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 910 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 911 | } |
912 | } | |
913 | #endif | |
914 | return 0; | |
915 | } | |
916 | ||
917 | int | |
864dbfa3 | 918 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 919 | { |
ed79a026 | 920 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 921 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 922 | #else |
7766f137 GS |
923 | # ifdef PERL_IMPLICIT_SYS |
924 | PerlEnv_clearenv(); | |
925 | # else | |
926 | # ifdef WIN32 | |
3e3baf6d TB |
927 | char *envv = GetEnvironmentStrings(); |
928 | char *cur = envv; | |
929 | STRLEN len; | |
930 | while (*cur) { | |
931 | char *end = strchr(cur,'='); | |
932 | if (end && end != cur) { | |
933 | *end = '\0'; | |
934 | my_setenv(cur,Nullch); | |
935 | *end = '='; | |
ac5c734f | 936 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
937 | } |
938 | else if ((len = strlen(cur))) | |
939 | cur += len+1; | |
940 | } | |
941 | FreeEnvironmentStrings(envv); | |
7766f137 GS |
942 | # else |
943 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
944 | I32 i; |
945 | ||
3280af22 | 946 | if (environ == PL_origenviron) |
f2517201 | 947 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
948 | else |
949 | for (i = 0; environ[i]; i++) | |
f2517201 | 950 | safesysfree(environ[i]); |
7766f137 | 951 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 952 | |
66b1d557 HM |
953 | environ[0] = Nullch; |
954 | ||
7766f137 GS |
955 | # endif /* WIN32 */ |
956 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 957 | #endif /* VMS */ |
3e3baf6d | 958 | return 0; |
66b1d557 HM |
959 | } |
960 | ||
64ca3a65 | 961 | #ifndef PERL_MICRO |
66b1d557 | 962 | int |
864dbfa3 | 963 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 964 | { |
965 | I32 i; | |
2d8e6c8d | 966 | STRLEN n_a; |
88e89b8a | 967 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 968 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 969 | if (i) { |
22c35a8c GS |
970 | if(PL_psig_ptr[i]) |
971 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 972 | else { |
ff68c719 | 973 | Sighandler_t sigstate = rsignal_state(i); |
974 | ||
88e89b8a | 975 | /* cache state so we don't fetch it again */ |
ff68c719 | 976 | if(sigstate == SIG_IGN) |
88e89b8a | 977 | sv_setpv(sv,"IGNORE"); |
978 | else | |
3280af22 | 979 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 980 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 981 | SvTEMP_off(sv); |
982 | } | |
983 | } | |
984 | return 0; | |
985 | } | |
986 | int | |
864dbfa3 | 987 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 988 | { |
989 | I32 i; | |
2d8e6c8d | 990 | STRLEN n_a; |
88e89b8a | 991 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 992 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 993 | if (i) { |
22c35a8c GS |
994 | if(PL_psig_ptr[i]) { |
995 | SvREFCNT_dec(PL_psig_ptr[i]); | |
996 | PL_psig_ptr[i]=0; | |
88e89b8a | 997 | } |
22c35a8c GS |
998 | if(PL_psig_name[i]) { |
999 | SvREFCNT_dec(PL_psig_name[i]); | |
1000 | PL_psig_name[i]=0; | |
88e89b8a | 1001 | } |
1002 | } | |
1003 | return 0; | |
1004 | } | |
3d37d572 | 1005 | |
85e6fe83 | 1006 | int |
864dbfa3 | 1007 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1008 | { |
11343788 | 1009 | dTHR; |
79072805 LW |
1010 | register char *s; |
1011 | I32 i; | |
748a9306 | 1012 | SV** svp; |
e72dc28c | 1013 | STRLEN len; |
a0d0e21e | 1014 | |
e72dc28c | 1015 | s = MgPV(mg,len); |
748a9306 LW |
1016 | if (*s == '_') { |
1017 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1018 | svp = &PL_diehook; |
748a9306 | 1019 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1020 | svp = &PL_warnhook; |
748a9306 | 1021 | else |
cea2e8a9 | 1022 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1023 | i = 0; |
4633a7c4 LW |
1024 | if (*svp) { |
1025 | SvREFCNT_dec(*svp); | |
1026 | *svp = 0; | |
1027 | } | |
748a9306 LW |
1028 | } |
1029 | else { | |
1030 | i = whichsig(s); /* ...no, a brick */ | |
1031 | if (!i) { | |
e476b1b5 | 1032 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1033 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1034 | return 0; |
1035 | } | |
22c35a8c GS |
1036 | SvREFCNT_dec(PL_psig_name[i]); |
1037 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1038 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1039 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1040 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1041 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1042 | } |
a0d0e21e | 1043 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1044 | if (i) |
3280af22 | 1045 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1046 | else |
1047 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1048 | return 0; |
1049 | } | |
e72dc28c | 1050 | s = SvPV_force(sv,len); |
748a9306 LW |
1051 | if (strEQ(s,"IGNORE")) { |
1052 | if (i) | |
ff68c719 | 1053 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1054 | else |
1055 | *svp = 0; | |
1056 | } | |
1057 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1058 | if (i) | |
ff68c719 | 1059 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1060 | else |
1061 | *svp = 0; | |
1062 | } | |
79072805 | 1063 | else { |
5aabfad6 | 1064 | /* |
1065 | * We should warn if HINT_STRICT_REFS, but without | |
1066 | * access to a known hint bit in a known OP, we can't | |
1067 | * tell whether HINT_STRICT_REFS is in force or not. | |
1068 | */ | |
46fc3d4c | 1069 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1070 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1071 | if (i) |
3280af22 | 1072 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1073 | else |
1074 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1075 | } |
1076 | return 0; | |
1077 | } | |
64ca3a65 | 1078 | #endif /* !PERL_MICRO */ |
79072805 LW |
1079 | |
1080 | int | |
864dbfa3 | 1081 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1082 | { |
3280af22 | 1083 | PL_sub_generation++; |
463ee0b2 LW |
1084 | return 0; |
1085 | } | |
1086 | ||
1087 | int | |
864dbfa3 | 1088 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1089 | { |
a0d0e21e | 1090 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1091 | PL_amagic_generation++; |
463ee0b2 | 1092 | |
a0d0e21e LW |
1093 | return 0; |
1094 | } | |
463ee0b2 | 1095 | |
946ec16e | 1096 | int |
864dbfa3 | 1097 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1098 | { |
1099 | HV *hv = (HV*)LvTARG(sv); | |
1100 | HE *entry; | |
1101 | I32 i = 0; | |
1102 | ||
1103 | if (hv) { | |
1104 | (void) hv_iterinit(hv); | |
33c27489 | 1105 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1106 | i = HvKEYS(hv); |
1107 | else { | |
1108 | /*SUPPRESS 560*/ | |
155aba94 | 1109 | while ((entry = hv_iternext(hv))) { |
6ff81951 GS |
1110 | i++; |
1111 | } | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | sv_setiv(sv, (IV)i); | |
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | int | |
864dbfa3 | 1120 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1121 | { |
1122 | if (LvTARG(sv)) { | |
1123 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1124 | } |
1125 | return 0; | |
ac27b0f5 | 1126 | } |
946ec16e | 1127 | |
e336de0d | 1128 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1129 | STATIC int |
cea2e8a9 | 1130 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1131 | { |
1132 | dSP; | |
463ee0b2 | 1133 | |
924508f0 GS |
1134 | PUSHMARK(SP); |
1135 | EXTEND(SP, n); | |
33c27489 | 1136 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1137 | if (n > 1) { |
93965878 | 1138 | if (mg->mg_ptr) { |
565764a8 | 1139 | if (mg->mg_len >= 0) |
79cb57f6 | 1140 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1141 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1142 | PUSHs((SV*)mg->mg_ptr); |
1143 | } | |
1144 | else if (mg->mg_type == 'p') { | |
565764a8 | 1145 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1146 | } |
1147 | } | |
1148 | if (n > 2) { | |
1149 | PUSHs(val); | |
88e89b8a | 1150 | } |
463ee0b2 LW |
1151 | PUTBACK; |
1152 | ||
864dbfa3 | 1153 | return call_method(meth, flags); |
946ec16e | 1154 | } |
1155 | ||
76e3520e | 1156 | STATIC int |
cea2e8a9 | 1157 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1158 | { |
1159 | dSP; | |
463ee0b2 | 1160 | |
a0d0e21e LW |
1161 | ENTER; |
1162 | SAVETMPS; | |
e788e7d3 | 1163 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1164 | |
33c27489 | 1165 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1166 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1167 | } |
463ee0b2 | 1168 | |
d3acc0f7 | 1169 | POPSTACK; |
a0d0e21e LW |
1170 | FREETMPS; |
1171 | LEAVE; | |
1172 | return 0; | |
1173 | } | |
463ee0b2 | 1174 | |
a0d0e21e | 1175 | int |
864dbfa3 | 1176 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1177 | { |
1178 | magic_methpack(sv,mg,"FETCH"); | |
1179 | if (mg->mg_ptr) | |
1180 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1181 | return 0; |
1182 | } | |
1183 | ||
1184 | int | |
864dbfa3 | 1185 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1186 | { |
1187 | dSP; | |
a60c0954 | 1188 | ENTER; |
e788e7d3 | 1189 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1190 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1191 | POPSTACK; |
a60c0954 | 1192 | LEAVE; |
463ee0b2 LW |
1193 | return 0; |
1194 | } | |
1195 | ||
1196 | int | |
864dbfa3 | 1197 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1198 | { |
a0d0e21e LW |
1199 | return magic_methpack(sv,mg,"DELETE"); |
1200 | } | |
463ee0b2 | 1201 | |
93965878 NIS |
1202 | |
1203 | U32 | |
864dbfa3 | 1204 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1205 | { |
e336de0d | 1206 | dSP; |
93965878 NIS |
1207 | U32 retval = 0; |
1208 | ||
1209 | ENTER; | |
1210 | SAVETMPS; | |
e788e7d3 | 1211 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1212 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1213 | sv = *PL_stack_sp--; |
a60c0954 | 1214 | retval = (U32) SvIV(sv)-1; |
93965878 | 1215 | } |
d3acc0f7 | 1216 | POPSTACK; |
93965878 NIS |
1217 | FREETMPS; |
1218 | LEAVE; | |
1219 | return retval; | |
1220 | } | |
1221 | ||
cea2e8a9 GS |
1222 | int |
1223 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1224 | { |
1225 | dSP; | |
463ee0b2 | 1226 | |
e336de0d | 1227 | ENTER; |
e788e7d3 | 1228 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1229 | PUSHMARK(SP); |
33c27489 | 1230 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1231 | PUTBACK; |
864dbfa3 | 1232 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1233 | POPSTACK; |
a60c0954 | 1234 | LEAVE; |
463ee0b2 LW |
1235 | return 0; |
1236 | } | |
1237 | ||
1238 | int | |
864dbfa3 | 1239 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1240 | { |
463ee0b2 | 1241 | dSP; |
dff6d3cd | 1242 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1243 | |
1244 | ENTER; | |
a0d0e21e | 1245 | SAVETMPS; |
e788e7d3 | 1246 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1247 | PUSHMARK(SP); |
1248 | EXTEND(SP, 2); | |
33c27489 | 1249 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1250 | if (SvOK(key)) |
1251 | PUSHs(key); | |
1252 | PUTBACK; | |
1253 | ||
864dbfa3 | 1254 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1255 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1256 | |
d3acc0f7 | 1257 | POPSTACK; |
a0d0e21e LW |
1258 | FREETMPS; |
1259 | LEAVE; | |
79072805 LW |
1260 | return 0; |
1261 | } | |
1262 | ||
1263 | int | |
864dbfa3 | 1264 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1265 | { |
1266 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1267 | } |
a0d0e21e LW |
1268 | |
1269 | int | |
864dbfa3 | 1270 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1271 | { |
11343788 | 1272 | dTHR; |
79072805 LW |
1273 | OP *o; |
1274 | I32 i; | |
1275 | GV* gv; | |
1276 | SV** svp; | |
2d8e6c8d | 1277 | STRLEN n_a; |
79072805 | 1278 | |
3280af22 | 1279 | gv = PL_DBline; |
79072805 | 1280 | i = SvTRUE(sv); |
188ea221 | 1281 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1282 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1283 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1284 | o->op_private = i; |
79072805 LW |
1285 | return 0; |
1286 | } | |
1287 | ||
1288 | int | |
864dbfa3 | 1289 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1290 | { |
0f15f207 | 1291 | dTHR; |
3280af22 | 1292 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1293 | return 0; |
1294 | } | |
1295 | ||
1296 | int | |
864dbfa3 | 1297 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1298 | { |
0f15f207 | 1299 | dTHR; |
3280af22 | 1300 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1301 | return 0; |
1302 | } | |
1303 | ||
1304 | int | |
864dbfa3 | 1305 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1306 | { |
1307 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1308 | |
a0d0e21e LW |
1309 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1310 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1311 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1312 | dTHR; |
a0ed51b3 | 1313 | I32 i = mg->mg_len; |
7e2040f0 | 1314 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1315 | sv_pos_b2u(lsv, &i); |
1316 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1317 | return 0; |
1318 | } | |
1319 | } | |
1320 | (void)SvOK_off(sv); | |
1321 | return 0; | |
1322 | } | |
1323 | ||
1324 | int | |
864dbfa3 | 1325 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1326 | { |
1327 | SV* lsv = LvTARG(sv); | |
1328 | SSize_t pos; | |
1329 | STRLEN len; | |
c00206c8 | 1330 | STRLEN ulen = 0; |
c485e607 | 1331 | dTHR; |
a0d0e21e LW |
1332 | |
1333 | mg = 0; | |
ac27b0f5 | 1334 | |
a0d0e21e LW |
1335 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1336 | mg = mg_find(lsv, 'g'); | |
1337 | if (!mg) { | |
1338 | if (!SvOK(sv)) | |
1339 | return 0; | |
1340 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1341 | mg = mg_find(lsv, 'g'); | |
1342 | } | |
1343 | else if (!SvOK(sv)) { | |
565764a8 | 1344 | mg->mg_len = -1; |
a0d0e21e LW |
1345 | return 0; |
1346 | } | |
1347 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1348 | ||
c485e607 | 1349 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1350 | |
7e2040f0 | 1351 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1352 | ulen = sv_len_utf8(lsv); |
1353 | if (ulen) | |
1354 | len = ulen; | |
a0ed51b3 LW |
1355 | } |
1356 | ||
a0d0e21e LW |
1357 | if (pos < 0) { |
1358 | pos += len; | |
1359 | if (pos < 0) | |
1360 | pos = 0; | |
1361 | } | |
1362 | else if (pos > len) | |
1363 | pos = len; | |
a0ed51b3 LW |
1364 | |
1365 | if (ulen) { | |
1366 | I32 p = pos; | |
1367 | sv_pos_u2b(lsv, &p, 0); | |
1368 | pos = p; | |
1369 | } | |
1370 | ||
565764a8 | 1371 | mg->mg_len = pos; |
71be2cbc | 1372 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1373 | |
79072805 LW |
1374 | return 0; |
1375 | } | |
1376 | ||
1377 | int | |
864dbfa3 | 1378 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1379 | { |
8646b087 | 1380 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1381 | SvFAKE_off(sv); | |
946ec16e | 1382 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1383 | SvFAKE_on(sv); |
1384 | } | |
1385 | else | |
946ec16e | 1386 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1387 | return 0; |
1388 | } | |
1389 | ||
1390 | int | |
864dbfa3 | 1391 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1392 | { |
1393 | register char *s; | |
1394 | GV* gv; | |
2d8e6c8d | 1395 | STRLEN n_a; |
79072805 LW |
1396 | |
1397 | if (!SvOK(sv)) | |
1398 | return 0; | |
2d8e6c8d | 1399 | s = SvPV(sv, n_a); |
79072805 LW |
1400 | if (*s == '*' && s[1]) |
1401 | s++; | |
85e6fe83 | 1402 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1403 | if (sv == (SV*)gv) |
1404 | return 0; | |
1405 | if (GvGP(sv)) | |
88e89b8a | 1406 | gp_free((GV*)sv); |
79072805 | 1407 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1408 | return 0; |
1409 | } | |
1410 | ||
1411 | int | |
864dbfa3 | 1412 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1413 | { |
1414 | STRLEN len; | |
1415 | SV *lsv = LvTARG(sv); | |
1416 | char *tmps = SvPV(lsv,len); | |
1417 | I32 offs = LvTARGOFF(sv); | |
1418 | I32 rem = LvTARGLEN(sv); | |
1419 | ||
1420 | if (offs > len) | |
1421 | offs = len; | |
1422 | if (rem + offs > len) | |
1423 | rem = len - offs; | |
1424 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
2ef4b674 GS |
1425 | if (DO_UTF8(lsv)) |
1426 | SvUTF8_on(sv); | |
6ff81951 GS |
1427 | return 0; |
1428 | } | |
1429 | ||
1430 | int | |
864dbfa3 | 1431 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1432 | { |
8990e307 LW |
1433 | STRLEN len; |
1434 | char *tmps = SvPV(sv,len); | |
1435 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1436 | return 0; |
1437 | } | |
1438 | ||
1439 | int | |
864dbfa3 | 1440 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1441 | { |
a863c7d1 | 1442 | dTHR; |
565764a8 | 1443 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1444 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1445 | return 0; |
1446 | } | |
1447 | ||
1448 | int | |
864dbfa3 | 1449 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1450 | { |
11343788 | 1451 | dTHR; |
3280af22 NIS |
1452 | if (PL_localizing) { |
1453 | if (PL_localizing == 1) | |
565764a8 | 1454 | mg->mg_len <<= 1; |
748a9306 | 1455 | else |
565764a8 | 1456 | mg->mg_len >>= 1; |
a0d0e21e | 1457 | } |
3280af22 | 1458 | else if (PL_tainted) |
565764a8 | 1459 | mg->mg_len |= 1; |
748a9306 | 1460 | else |
565764a8 | 1461 | mg->mg_len &= ~1; |
463ee0b2 LW |
1462 | return 0; |
1463 | } | |
1464 | ||
1465 | int | |
864dbfa3 | 1466 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1467 | { |
1468 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1469 | |
1470 | if (!lsv) { | |
155aba94 | 1471 | (void)SvOK_off(sv); |
6ff81951 GS |
1472 | return 0; |
1473 | } | |
6ff81951 | 1474 | |
81e118e0 | 1475 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1476 | return 0; |
1477 | } | |
1478 | ||
1479 | int | |
864dbfa3 | 1480 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1481 | { |
1482 | do_vecset(sv); /* XXX slurp this routine */ | |
1483 | return 0; | |
1484 | } | |
1485 | ||
1486 | int | |
864dbfa3 | 1487 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1488 | { |
71be2cbc | 1489 | SV *targ = Nullsv; |
5f05dabc | 1490 | if (LvTARGLEN(sv)) { |
68dc0745 | 1491 | if (mg->mg_obj) { |
74e13ce4 GS |
1492 | SV *ahv = LvTARG(sv); |
1493 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1494 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1495 | if (he) | |
1496 | targ = HeVAL(he); | |
1497 | } | |
1498 | else { | |
1499 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1500 | if (svp) | |
1501 | targ = *svp; | |
1502 | } | |
68dc0745 | 1503 | } |
1504 | else { | |
3c78fafa | 1505 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1506 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1507 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1508 | } | |
3280af22 | 1509 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1510 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1511 | /* somebody else defined it for us */ |
1512 | SvREFCNT_dec(LvTARG(sv)); | |
1513 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1514 | LvTARGLEN(sv) = 0; | |
1515 | SvREFCNT_dec(mg->mg_obj); | |
1516 | mg->mg_obj = Nullsv; | |
1517 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1518 | } | |
5f05dabc | 1519 | } |
71be2cbc | 1520 | else |
1521 | targ = LvTARG(sv); | |
3280af22 | 1522 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1523 | return 0; |
1524 | } | |
1525 | ||
1526 | int | |
864dbfa3 | 1527 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1528 | { |
1529 | if (LvTARGLEN(sv)) | |
68dc0745 | 1530 | vivify_defelem(sv); |
1531 | if (LvTARG(sv)) { | |
5f05dabc | 1532 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1533 | SvSETMAGIC(LvTARG(sv)); |
1534 | } | |
5f05dabc | 1535 | return 0; |
1536 | } | |
1537 | ||
71be2cbc | 1538 | void |
864dbfa3 | 1539 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1540 | { |
e858de61 | 1541 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1542 | MAGIC *mg; |
1543 | SV *value = Nullsv; | |
71be2cbc | 1544 | |
68dc0745 | 1545 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1546 | return; |
68dc0745 | 1547 | if (mg->mg_obj) { |
74e13ce4 | 1548 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1549 | STRLEN n_a; |
74e13ce4 | 1550 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1551 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1552 | if (he) |
1553 | value = HeVAL(he); | |
1554 | } | |
1555 | else { | |
af7f9c15 | 1556 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1557 | if (svp) |
1558 | value = *svp; | |
1559 | } | |
3280af22 | 1560 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1561 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1562 | } |
68dc0745 | 1563 | else { |
1564 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1565 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1566 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1567 | else { | |
1568 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1569 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1570 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1571 | } |
1572 | } | |
3e3baf6d | 1573 | (void)SvREFCNT_inc(value); |
68dc0745 | 1574 | SvREFCNT_dec(LvTARG(sv)); |
1575 | LvTARG(sv) = value; | |
71be2cbc | 1576 | LvTARGLEN(sv) = 0; |
68dc0745 | 1577 | SvREFCNT_dec(mg->mg_obj); |
1578 | mg->mg_obj = Nullsv; | |
1579 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1580 | } |
1581 | ||
1582 | int | |
864dbfa3 | 1583 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1584 | { |
1585 | AV *av = (AV*)mg->mg_obj; | |
1586 | SV **svp = AvARRAY(av); | |
1587 | I32 i = AvFILLp(av); | |
1588 | while (i >= 0) { | |
1589 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1590 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1591 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1592 | /* XXX Should we check that it hasn't changed? */ |
1593 | SvRV(svp[i]) = 0; | |
155aba94 | 1594 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1595 | SvWEAKREF_off(svp[i]); |
1596 | svp[i] = &PL_sv_undef; | |
1597 | } | |
1598 | i--; | |
1599 | } | |
1600 | return 0; | |
1601 | } | |
1602 | ||
1603 | int | |
864dbfa3 | 1604 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1605 | { |
565764a8 | 1606 | mg->mg_len = -1; |
c6496cc7 | 1607 | SvSCREAM_off(sv); |
93a17b20 LW |
1608 | return 0; |
1609 | } | |
1610 | ||
1611 | int | |
864dbfa3 | 1612 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1613 | { |
463ee0b2 | 1614 | sv_unmagic(sv, 'B'); |
79072805 LW |
1615 | SvVALID_off(sv); |
1616 | return 0; | |
1617 | } | |
1618 | ||
1619 | int | |
864dbfa3 | 1620 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1621 | { |
1622 | sv_unmagic(sv, 'f'); | |
1623 | SvCOMPILED_off(sv); | |
1624 | return 0; | |
1625 | } | |
1626 | ||
1627 | int | |
864dbfa3 | 1628 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1629 | { |
1630 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1631 | ||
1632 | if (uf && uf->uf_set) | |
1633 | (*uf->uf_set)(uf->uf_index, sv); | |
1634 | return 0; | |
1635 | } | |
1636 | ||
c277df42 | 1637 | int |
864dbfa3 | 1638 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1639 | { |
1640 | regexp *re = (regexp *)mg->mg_obj; | |
1641 | ReREFCNT_dec(re); | |
1642 | return 0; | |
1643 | } | |
1644 | ||
7a4c00b4 | 1645 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1646 | int |
864dbfa3 | 1647 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1648 | { |
1649 | /* | |
838b5b74 | 1650 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1651 | * and vanished with a faint plop. |
1652 | */ | |
7a4c00b4 | 1653 | if (mg->mg_ptr) { |
1654 | Safefree(mg->mg_ptr); | |
1655 | mg->mg_ptr = NULL; | |
565764a8 | 1656 | mg->mg_len = -1; |
7a4c00b4 | 1657 | } |
bbce6d69 | 1658 | return 0; |
1659 | } | |
7a4c00b4 | 1660 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1661 | |
1662 | int | |
864dbfa3 | 1663 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1664 | { |
11343788 | 1665 | dTHR; |
79072805 LW |
1666 | register char *s; |
1667 | I32 i; | |
8990e307 | 1668 | STRLEN len; |
79072805 | 1669 | switch (*mg->mg_ptr) { |
748a9306 | 1670 | case '\001': /* ^A */ |
3280af22 | 1671 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1672 | break; |
49460fe6 NIS |
1673 | case '\003': /* ^C */ |
1674 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1675 | break; | |
1676 | ||
79072805 | 1677 | case '\004': /* ^D */ |
3280af22 | 1678 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1679 | DEBUG_x(dump_all()); |
1680 | break; | |
28f23441 | 1681 | case '\005': /* ^E */ |
cd39f2b6 | 1682 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1683 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1684 | #else |
cd39f2b6 JH |
1685 | # ifdef VMS |
1686 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1687 | # else |
cd39f2b6 JH |
1688 | # ifdef WIN32 |
1689 | SetLastError( SvIV(sv) ); | |
1690 | # else | |
1691 | # ifndef OS2 | |
f86702cc | 1692 | /* will anyone ever use this? */ |
1693 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1694 | # endif |
048c1ddf IZ |
1695 | # endif |
1696 | # endif | |
22fae026 | 1697 | #endif |
28f23441 | 1698 | break; |
79072805 | 1699 | case '\006': /* ^F */ |
3280af22 | 1700 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1701 | break; |
a0d0e21e | 1702 | case '\010': /* ^H */ |
3280af22 | 1703 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1704 | break; |
9d116dd7 | 1705 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1706 | if (PL_inplace) |
1707 | Safefree(PL_inplace); | |
79072805 | 1708 | if (SvOK(sv)) |
2d8e6c8d | 1709 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1710 | else |
3280af22 | 1711 | PL_inplace = Nullch; |
79072805 | 1712 | break; |
28f23441 | 1713 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1714 | if (*(mg->mg_ptr+1) == '\0') { |
1715 | if (PL_osname) | |
1716 | Safefree(PL_osname); | |
1717 | if (SvOK(sv)) | |
1718 | PL_osname = savepv(SvPV(sv,len)); | |
1719 | else | |
1720 | PL_osname = Nullch; | |
1721 | } | |
1722 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1723 | if (!PL_compiling.cop_io) | |
1724 | PL_compiling.cop_io = newSVsv(sv); | |
1725 | else | |
1726 | sv_setsv(PL_compiling.cop_io,sv); | |
1727 | } | |
28f23441 | 1728 | break; |
79072805 | 1729 | case '\020': /* ^P */ |
3280af22 | 1730 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1731 | if (PL_perldb && !PL_DBsingle) |
1732 | init_debugger(); | |
79072805 LW |
1733 | break; |
1734 | case '\024': /* ^T */ | |
88e89b8a | 1735 | #ifdef BIG_TIME |
6b88bc9c | 1736 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1737 | #else |
3280af22 | 1738 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1739 | #endif |
79072805 | 1740 | break; |
46487f74 | 1741 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1742 | if (*(mg->mg_ptr+1) == '\0') { |
1743 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1744 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1745 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1746 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1747 | } |
599cee73 | 1748 | } |
6a818117 | 1749 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1750 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1751 | if (!SvPOK(sv) && PL_localizing) { |
1752 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1753 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1754 | break; |
1755 | } | |
f4fc7782 | 1756 | { |
b5477537 | 1757 | STRLEN len, i; |
d3a7d8c7 | 1758 | int accumulate = 0 ; |
f4fc7782 | 1759 | int any_fatals = 0 ; |
d3a7d8c7 | 1760 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1761 | for (i = 0 ; i < len ; ++i) { |
1762 | accumulate |= ptr[i] ; | |
1763 | any_fatals |= (ptr[i] & 0xAA) ; | |
1764 | } | |
d3a7d8c7 GS |
1765 | if (!accumulate) |
1766 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1767 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1768 | PL_compiling.cop_warnings = pWARN_ALL; | |
1769 | PL_dowarn |= G_WARN_ONCE ; | |
1770 | } | |
d3a7d8c7 GS |
1771 | else { |
1772 | if (specialWARN(PL_compiling.cop_warnings)) | |
1773 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1774 | else | |
1775 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1776 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1777 | PL_dowarn |= G_WARN_ONCE ; | |
1778 | } | |
f4fc7782 | 1779 | |
d3a7d8c7 | 1780 | } |
4438c4b7 | 1781 | } |
971a9dd3 | 1782 | } |
46487f74 GS |
1783 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1784 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1785 | break; |
1786 | case '.': | |
3280af22 NIS |
1787 | if (PL_localizing) { |
1788 | if (PL_localizing == 1) | |
7766f137 | 1789 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1790 | } |
3280af22 NIS |
1791 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1792 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1793 | break; |
1794 | case '^': | |
3280af22 | 1795 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1796 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1797 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1798 | break; |
1799 | case '~': | |
3280af22 | 1800 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1801 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1802 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1803 | break; |
1804 | case '=': | |
3280af22 | 1805 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1806 | break; |
1807 | case '-': | |
3280af22 NIS |
1808 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1809 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1810 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1811 | break; |
1812 | case '%': | |
3280af22 | 1813 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1814 | break; |
1815 | case '|': | |
4b65379b | 1816 | { |
3280af22 | 1817 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1818 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1819 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1820 | else { | |
1821 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1822 | PerlIO *ofp = IoOFP(io); | |
1823 | if (ofp) | |
1824 | (void)PerlIO_flush(ofp); | |
1825 | IoFLAGS(io) |= IOf_FLUSH; | |
1826 | } | |
1827 | } | |
79072805 LW |
1828 | } |
1829 | break; | |
1830 | case '*': | |
463ee0b2 | 1831 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1832 | PL_multiline = (i != 0); |
79072805 LW |
1833 | break; |
1834 | case '/': | |
3280af22 NIS |
1835 | SvREFCNT_dec(PL_nrs); |
1836 | PL_nrs = newSVsv(sv); | |
1837 | SvREFCNT_dec(PL_rs); | |
1838 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1839 | break; |
1840 | case '\\': | |
3280af22 NIS |
1841 | if (PL_ors) |
1842 | Safefree(PL_ors); | |
009c130f GS |
1843 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
1844 | s = SvPV(sv,PL_orslen); | |
1845 | PL_ors = savepvn(s,PL_orslen); | |
1846 | } | |
e3c19b7b | 1847 | else { |
3280af22 NIS |
1848 | PL_ors = Nullch; |
1849 | PL_orslen = 0; | |
e3c19b7b | 1850 | } |
79072805 LW |
1851 | break; |
1852 | case ',': | |
3280af22 NIS |
1853 | if (PL_ofs) |
1854 | Safefree(PL_ofs); | |
1855 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1856 | break; |
1857 | case '#': | |
3280af22 NIS |
1858 | if (PL_ofmt) |
1859 | Safefree(PL_ofmt); | |
2d8e6c8d | 1860 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1861 | break; |
1862 | case '[': | |
3280af22 | 1863 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1864 | break; |
1865 | case '?': | |
ff0cee69 | 1866 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1867 | if (PL_localizing == 2) { |
1868 | PL_statusvalue = LvTARGOFF(sv); | |
1869 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1870 | } |
1871 | else | |
1872 | #endif | |
1873 | #ifdef VMSISH_STATUS | |
1874 | if (VMSISH_STATUS) | |
1875 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1876 | else | |
1877 | #endif | |
1878 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1879 | break; |
1880 | case '!': | |
78987ded | 1881 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1882 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1883 | break; |
1884 | case '<': | |
3280af22 NIS |
1885 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1886 | if (PL_delaymagic) { | |
1887 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1888 | break; /* don't do magic till later */ |
1889 | } | |
1890 | #ifdef HAS_SETRUID | |
b28d0864 | 1891 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1892 | #else |
1893 | #ifdef HAS_SETREUID | |
3280af22 | 1894 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1895 | #else |
85e6fe83 | 1896 | #ifdef HAS_SETRESUID |
b28d0864 | 1897 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1898 | #else |
b28d0864 NIS |
1899 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1900 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1901 | else { |
d8eceb89 | 1902 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1903 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1904 | } |
79072805 LW |
1905 | #endif |
1906 | #endif | |
85e6fe83 | 1907 | #endif |
d8eceb89 | 1908 | PL_uid = PerlProc_getuid(); |
3280af22 | 1909 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1910 | break; |
1911 | case '>': | |
3280af22 NIS |
1912 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1913 | if (PL_delaymagic) { | |
1914 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1915 | break; /* don't do magic till later */ |
1916 | } | |
1917 | #ifdef HAS_SETEUID | |
3280af22 | 1918 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1919 | #else |
1920 | #ifdef HAS_SETREUID | |
b28d0864 | 1921 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1922 | #else |
1923 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1924 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1925 | #else |
b28d0864 NIS |
1926 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1927 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1928 | else { |
e8ee3774 | 1929 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1930 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1931 | } |
79072805 LW |
1932 | #endif |
1933 | #endif | |
85e6fe83 | 1934 | #endif |
d8eceb89 | 1935 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1936 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1937 | break; |
1938 | case '(': | |
3280af22 NIS |
1939 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1940 | if (PL_delaymagic) { | |
1941 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1942 | break; /* don't do magic till later */ |
1943 | } | |
1944 | #ifdef HAS_SETRGID | |
b28d0864 | 1945 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1946 | #else |
1947 | #ifdef HAS_SETREGID | |
3280af22 | 1948 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1949 | #else |
1950 | #ifdef HAS_SETRESGID | |
b28d0864 | 1951 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1952 | #else |
b28d0864 NIS |
1953 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1954 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1955 | else { |
d8eceb89 | 1956 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 1957 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1958 | } |
79072805 LW |
1959 | #endif |
1960 | #endif | |
85e6fe83 | 1961 | #endif |
d8eceb89 | 1962 | PL_gid = PerlProc_getgid(); |
3280af22 | 1963 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1964 | break; |
1965 | case ')': | |
5cd24f17 | 1966 | #ifdef HAS_SETGROUPS |
1967 | { | |
2d8e6c8d | 1968 | char *p = SvPV(sv, len); |
5cd24f17 | 1969 | Groups_t gary[NGROUPS]; |
1970 | ||
5cd24f17 | 1971 | while (isSPACE(*p)) |
1972 | ++p; | |
2d4389e4 | 1973 | PL_egid = Atol(p); |
5cd24f17 | 1974 | for (i = 0; i < NGROUPS; ++i) { |
1975 | while (*p && !isSPACE(*p)) | |
1976 | ++p; | |
1977 | while (isSPACE(*p)) | |
1978 | ++p; | |
1979 | if (!*p) | |
1980 | break; | |
2d4389e4 | 1981 | gary[i] = Atol(p); |
5cd24f17 | 1982 | } |
8cc95fdb | 1983 | if (i) |
1984 | (void)setgroups(i, gary); | |
5cd24f17 | 1985 | } |
1986 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1987 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1988 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1989 | if (PL_delaymagic) { |
1990 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1991 | break; /* don't do magic till later */ |
1992 | } | |
1993 | #ifdef HAS_SETEGID | |
3280af22 | 1994 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1995 | #else |
1996 | #ifdef HAS_SETREGID | |
b28d0864 | 1997 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1998 | #else |
1999 | #ifdef HAS_SETRESGID | |
b28d0864 | 2000 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2001 | #else |
b28d0864 NIS |
2002 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2003 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2004 | else { |
d8eceb89 | 2005 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2006 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2007 | } |
79072805 LW |
2008 | #endif |
2009 | #endif | |
85e6fe83 | 2010 | #endif |
d8eceb89 | 2011 | PL_egid = PerlProc_getegid(); |
3280af22 | 2012 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2013 | break; |
2014 | case ':': | |
2d8e6c8d | 2015 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2016 | break; |
cd39f2b6 | 2017 | #ifndef MACOS_TRADITIONAL |
79072805 | 2018 | case '0': |
4bc88a62 PS |
2019 | #ifdef HAS_SETPROCTITLE |
2020 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2021 | * show a string from the process struct and provide | |
2022 | * the setproctitle() routine to manipulate that. */ | |
2023 | { | |
2024 | s = SvPV(sv, len); | |
9aad2c0e JH |
2025 | # if __FreeBSD_version >= 410001 |
2026 | /* The leading "-" removes the "perl: " prefix, | |
4bc88a62 PS |
2027 | * but not the "(perl) suffix from the ps(1) |
2028 | * output, because that's what ps(1) shows if the | |
2029 | * argv[] is modified. */ | |
2030 | setproctitle("-%s", s, len + 1); | |
9aad2c0e | 2031 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2032 | /* This doesn't really work if you assume that |
2033 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2034 | * because in ps(1) output the result will be like | |
2035 | * sprintf("perl: %s (perl)", s) | |
2036 | * I guess this is a security feature: | |
2037 | * one (a user process) cannot get rid of the original name. | |
2038 | * --jhi */ | |
2039 | setproctitle("%s", s); | |
2040 | # endif | |
2041 | } | |
2042 | #endif | |
3280af22 NIS |
2043 | if (!PL_origalen) { |
2044 | s = PL_origargv[0]; | |
79072805 LW |
2045 | s += strlen(s); |
2046 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2047 | for (i = 1; i < PL_origargc; i++) { |
2048 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2049 | #ifdef OS2 |
6b88bc9c | 2050 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2051 | #endif |
fb73857a | 2052 | ) |
379c4362 GS |
2053 | { |
2054 | ++s; | |
2055 | s += strlen(s); /* this one is ok too */ | |
2056 | } | |
fb73857a | 2057 | else |
2058 | break; | |
79072805 | 2059 | } |
bbce6d69 | 2060 | /* can grab env area too? */ |
3280af22 | 2061 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2062 | #ifdef OS2 |
6b88bc9c | 2063 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
ac27b0f5 | 2064 | #endif |
fb73857a | 2065 | )) { |
66b1d557 | 2066 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2067 | /* force copy of environment */ |
3280af22 | 2068 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2069 | if (PL_origenviron[i] == s + 1) { |
2070 | ++s; | |
2071 | s += strlen(s); | |
2072 | } | |
fb73857a | 2073 | else |
2074 | break; | |
79072805 | 2075 | } |
3280af22 | 2076 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2077 | } |
a0d0e21e | 2078 | s = SvPV_force(sv,len); |
8990e307 | 2079 | i = len; |
3280af22 NIS |
2080 | if (i >= PL_origalen) { |
2081 | i = PL_origalen; | |
fb73857a | 2082 | /* don't allow system to limit $0 seen by script */ |
2083 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2084 | Copy(s, PL_origargv[0], i, char); |
2085 | s = PL_origargv[0]+i; | |
fb73857a | 2086 | *s = '\0'; |
79072805 LW |
2087 | } |
2088 | else { | |
3280af22 NIS |
2089 | Copy(s, PL_origargv[0], i, char); |
2090 | s = PL_origargv[0]+i; | |
79072805 | 2091 | *s++ = '\0'; |
3280af22 | 2092 | while (++i < PL_origalen) |
8990e307 | 2093 | *s++ = ' '; |
3280af22 NIS |
2094 | s = PL_origargv[0]+i; |
2095 | for (i = 1; i < PL_origargc; i++) | |
2096 | PL_origargv[i] = Nullch; | |
79072805 LW |
2097 | } |
2098 | break; | |
cd39f2b6 | 2099 | #endif |
a863c7d1 MB |
2100 | #ifdef USE_THREADS |
2101 | case '@': | |
38a03e6e | 2102 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2103 | break; |
2104 | #endif /* USE_THREADS */ | |
79072805 LW |
2105 | } |
2106 | return 0; | |
2107 | } | |
2108 | ||
f93b4edd MB |
2109 | #ifdef USE_THREADS |
2110 | int | |
864dbfa3 | 2111 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd MB |
2112 | { |
2113 | dTHR; | |
b900a521 JH |
2114 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2115 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2116 | PTR2UV(thr), PTR2UV(sv));) | |
f93b4edd | 2117 | if (MgOWNER(mg)) |
cea2e8a9 | 2118 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2119 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2120 | COND_DESTROY(MgCONDP(mg)); | |
2121 | return 0; | |
2122 | } | |
2123 | #endif /* USE_THREADS */ | |
2124 | ||
79072805 | 2125 | I32 |
864dbfa3 | 2126 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2127 | { |
2128 | register char **sigv; | |
2129 | ||
22c35a8c | 2130 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2131 | if (strEQ(sig,*sigv)) |
22c35a8c | 2132 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2133 | #ifdef SIGCLD |
2134 | if (strEQ(sig,"CHLD")) | |
2135 | return SIGCLD; | |
2136 | #endif | |
2137 | #ifdef SIGCHLD | |
2138 | if (strEQ(sig,"CLD")) | |
2139 | return SIGCHLD; | |
2140 | #endif | |
2141 | return 0; | |
2142 | } | |
2143 | ||
84902520 TB |
2144 | static SV* sig_sv; |
2145 | ||
ecfc5424 | 2146 | Signal_t |
cea2e8a9 | 2147 | Perl_sighandler(int sig) |
79072805 | 2148 | { |
71d280e3 GS |
2149 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2150 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ | |
2151 | #else | |
cea2e8a9 | 2152 | dTHX; |
71d280e3 | 2153 | #endif |
79072805 | 2154 | dSP; |
00d579c5 | 2155 | GV *gv = Nullgv; |
a0d0e21e | 2156 | HV *st; |
3280af22 | 2157 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2158 | CV *cv = Nullcv; |
533c011a | 2159 | OP *myop = PL_op; |
84902520 | 2160 | U32 flags = 0; |
155aba94 | 2161 | I32 o_save_i = PL_savestack_ix; |
3280af22 | 2162 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2163 | |
2164 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
2165 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ | |
2166 | #endif | |
ac27b0f5 | 2167 | |
3280af22 | 2168 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2169 | flags |= 1; |
3280af22 | 2170 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2171 | flags |= 4; |
3280af22 | 2172 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2173 | flags |= 8; |
3280af22 | 2174 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2175 | flags |= 16; |
2176 | ||
22c35a8c | 2177 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2178 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2179 | PL_sig_name[sig]); |
ff0cee69 | 2180 | |
84902520 TB |
2181 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2182 | infinity, so we fix 4 (in fact 5): */ | |
2183 | if (flags & 1) { | |
3280af22 NIS |
2184 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2185 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2186 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2187 | } |
ac27b0f5 | 2188 | if (flags & 4) |
3280af22 | 2189 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2190 | if (flags & 8) { |
3280af22 NIS |
2191 | PL_retstack_ix++; |
2192 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2193 | } |
2194 | if (flags & 16) | |
3280af22 | 2195 | PL_scopestack_ix += 1; |
84902520 | 2196 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2197 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2198 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2199 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2200 | |
a0d0e21e | 2201 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2202 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2203 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2204 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2205 | : ((cv && CvGV(cv)) |
2206 | ? GvENAME(CvGV(cv)) | |
2207 | : "__ANON__"))); | |
2208 | goto cleanup; | |
79072805 LW |
2209 | } |
2210 | ||
22c35a8c GS |
2211 | if(PL_psig_name[sig]) { |
2212 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2213 | flags |= 64; |
2214 | sig_sv = sv; | |
2215 | } else { | |
ff0cee69 | 2216 | sv = sv_newmortal(); |
22c35a8c | 2217 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2218 | } |
e336de0d | 2219 | |
e788e7d3 | 2220 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2221 | PUSHMARK(SP); |
79072805 | 2222 | PUSHs(sv); |
79072805 | 2223 | PUTBACK; |
a0d0e21e | 2224 | |
864dbfa3 | 2225 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2226 | |
d3acc0f7 | 2227 | POPSTACK; |
00d579c5 | 2228 | cleanup: |
84902520 | 2229 | if (flags & 1) |
3280af22 | 2230 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2231 | if (flags & 4) |
3280af22 | 2232 | PL_markstack_ptr--; |
ac27b0f5 | 2233 | if (flags & 8) |
3280af22 | 2234 | PL_retstack_ix--; |
84902520 | 2235 | if (flags & 16) |
3280af22 | 2236 | PL_scopestack_ix -= 1; |
84902520 TB |
2237 | if (flags & 64) |
2238 | SvREFCNT_dec(sv); | |
533c011a | 2239 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2240 | |
3280af22 NIS |
2241 | PL_Sv = tSv; /* Restore global temporaries. */ |
2242 | PL_Xpv = tXpv; | |
79072805 LW |
2243 | return; |
2244 | } | |
4e35701f NIS |
2245 | |
2246 | ||
51371543 | 2247 | #ifdef PERL_OBJECT |
51371543 GS |
2248 | #include "XSUB.h" |
2249 | #endif | |
2250 | ||
2251 | static void | |
2252 | restore_magic(pTHXo_ void *p) | |
2253 | { | |
2254 | dTHR; | |
48944bdf | 2255 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2256 | SV* sv = mgs->mgs_sv; |
2257 | ||
2258 | if (!sv) | |
2259 | return; | |
2260 | ||
2261 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2262 | { | |
2263 | if (mgs->mgs_flags) | |
2264 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2265 | else | |
2266 | mg_magical(sv); | |
2267 | if (SvGMAGICAL(sv)) | |
2268 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2269 | } | |
2270 | ||
2271 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2272 | ||
2273 | /* If we're still on top of the stack, pop us off. (That condition | |
2274 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2275 | * if it's being called via leave_scope.) | |
2276 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2277 | * may leave alloc gunk on the savestack, and some code | |
2278 | * (e.g. sighandler) doesn't expect that... | |
2279 | */ | |
2280 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2281 | { | |
2282 | I32 popval = SSPOPINT; | |
c76ac1ee | 2283 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2284 | PL_savestack_ix -= 2; |
2285 | popval = SSPOPINT; | |
2286 | assert(popval == SAVEt_ALLOC); | |
2287 | popval = SSPOPINT; | |
2288 | PL_savestack_ix -= popval; | |
2289 | } | |
2290 | ||
2291 | } | |
2292 | ||
2293 | static void | |
2294 | unwind_handler_stack(pTHXo_ void *p) | |
2295 | { | |
2296 | dTHR; | |
2297 | U32 flags = *(U32*)p; | |
2298 | ||
2299 | if (flags & 1) | |
2300 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2301 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2302 | if (flags & 64) | |
2303 | SvREFCNT_dec(sig_sv); | |
2304 | } |