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 | ||
e6d9441c | 19 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
20 | #ifdef I_UNISTD |
21 | # include <unistd.h> | |
22 | #endif | |
a0d0e21e | 23 | |
5cd24f17 | 24 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
25 | # ifndef NGROUPS |
26 | # define NGROUPS 32 | |
27 | # endif | |
28 | #endif | |
29 | ||
51371543 GS |
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 GS |
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 AD |
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 GS |
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 LW |
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 LW |
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 LW |
83 | SvRMAGICAL_on(sv); |
84 | } | |
85 | } | |
86 | } | |
87 | ||
954c1994 GS |
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 AD |
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 CS |
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 LW |
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 LW |
128 | return 0; |
129 | } | |
130 | ||
954c1994 GS |
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 LW |
145 | MAGIC* nextmg; |
146 | ||
455ece5e AD |
147 | mgs_ix = SSNEW(sizeof(MGS)); |
148 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
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 LW |
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 LW |
162 | return 0; |
163 | } | |
164 | ||
954c1994 GS |
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 LW |
175 | { |
176 | MAGIC* mg; | |
748a9306 | 177 | char *junk; |
463ee0b2 | 178 | STRLEN len; |
463ee0b2 | 179 | |
79072805 LW |
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 AD |
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 LW |
190 | return len; |
191 | } | |
192 | } | |
193 | ||
748a9306 | 194 | junk = SvPV(sv, len); |
463ee0b2 | 195 | return len; |
79072805 LW |
196 | } |
197 | ||
93965878 | 198 | I32 |
864dbfa3 | 199 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
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 AD |
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 NIS |
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 NIS |
226 | break; |
227 | } | |
228 | return 0; | |
229 | } | |
230 | ||
954c1994 GS |
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 AD |
245 | mgs_ix = SSNEW(sizeof(MGS)); |
246 | save_magic(mgs_ix, sv); | |
463ee0b2 | 247 | |
79072805 LW |
248 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
249 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
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 LW |
257 | return 0; |
258 | } | |
259 | ||
954c1994 GS |
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 LW |
270 | { |
271 | MAGIC* mg; | |
93a17b20 LW |
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 GS |
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 LW |
292 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
293 | if (isUPPER(mg->mg_type)) { | |
33c27489 GS |
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 LW |
301 | } |
302 | ||
954c1994 GS |
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 LW |
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 LW |
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 IZ |
340 | { |
341 | dTHR; | |
6cef1e77 | 342 | register REGEXP *rx; |
6cef1e77 | 343 | |
8f580fb8 IZ |
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 IZ |
352 | } |
353 | ||
354 | int | |
864dbfa3 | 355 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
356 | { |
357 | dTHR; | |
358 | register I32 paren; | |
cf93c79d | 359 | register I32 s; |
6cef1e77 IZ |
360 | register I32 i; |
361 | register REGEXP *rx; | |
cf93c79d | 362 | I32 t; |
6cef1e77 IZ |
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 IZ |
369 | (s = rx->startp[paren]) != -1 && |
370 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
371 | { |
372 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 373 | i = t; |
6cef1e77 | 374 | else /* @- */ |
cf93c79d | 375 | i = s; |
6cef1e77 IZ |
376 | sv_setiv(sv,i); |
377 | } | |
378 | } | |
379 | return 0; | |
380 | } | |
381 | ||
cc18cfc0 | 382 | void |
a29d06ed MG |
383 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
384 | { | |
385 | dTHR; | |
386 | Perl_croak(aTHX_ PL_no_modify); | |
387 | } | |
388 | ||
93a17b20 | 389 | U32 |
864dbfa3 | 390 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 391 | { |
a863c7d1 | 392 | dTHR; |
93a17b20 | 393 | register I32 paren; |
93a17b20 | 394 | register I32 i; |
d9f97599 | 395 | register REGEXP *rx; |
a197cbdd | 396 | I32 s1, t1; |
93a17b20 LW |
397 | |
398 | switch (*mg->mg_ptr) { | |
399 | case '1': case '2': case '3': case '4': | |
400 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 401 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d | 402 | |
93a17b20 LW |
403 | paren = atoi(mg->mg_ptr); |
404 | getparen: | |
d9f97599 | 405 | if (paren <= rx->nparens && |
cf93c79d IZ |
406 | (s1 = rx->startp[paren]) != -1 && |
407 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 408 | { |
cf93c79d | 409 | i = t1 - s1; |
a197cbdd GS |
410 | getlen: |
411 | if (i > 0 && (PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { | |
412 | char *s = rx->subbeg + s1; | |
413 | char *send = rx->subbeg + t1; | |
414 | i = 0; | |
415 | while (s < send) { | |
416 | s += UTF8SKIP(s); | |
417 | i++; | |
418 | } | |
419 | } | |
71be2cbc | 420 | if (i >= 0) |
93a17b20 | 421 | return i; |
93a17b20 | 422 | } |
93a17b20 | 423 | } |
748a9306 | 424 | return 0; |
93a17b20 | 425 | case '+': |
3280af22 | 426 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 427 | paren = rx->lastparen; |
13f57bf8 CS |
428 | if (paren) |
429 | goto getparen; | |
93a17b20 | 430 | } |
748a9306 | 431 | return 0; |
93a17b20 | 432 | case '`': |
3280af22 | 433 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
434 | if (rx->startp[0] != -1) { |
435 | i = rx->startp[0]; | |
a197cbdd GS |
436 | if (i > 0) { |
437 | s1 = 0; | |
438 | t1 = i; | |
439 | goto getlen; | |
440 | } | |
93a17b20 | 441 | } |
93a17b20 | 442 | } |
748a9306 | 443 | return 0; |
93a17b20 | 444 | case '\'': |
3280af22 | 445 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
446 | if (rx->endp[0] != -1) { |
447 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
448 | if (i > 0) { |
449 | s1 = rx->endp[0]; | |
450 | t1 = rx->sublen; | |
451 | goto getlen; | |
452 | } | |
93a17b20 | 453 | } |
93a17b20 | 454 | } |
748a9306 | 455 | return 0; |
93a17b20 | 456 | case ',': |
3280af22 | 457 | return (STRLEN)PL_ofslen; |
93a17b20 | 458 | case '\\': |
3280af22 | 459 | return (STRLEN)PL_orslen; |
93a17b20 LW |
460 | } |
461 | magic_get(sv,mg); | |
2d8e6c8d GS |
462 | if (!SvPOK(sv) && SvNIOK(sv)) { |
463 | STRLEN n_a; | |
464 | sv_2pv(sv, &n_a); | |
465 | } | |
93a17b20 LW |
466 | if (SvPOK(sv)) |
467 | return SvCUR(sv); | |
468 | return 0; | |
469 | } | |
470 | ||
79072805 | 471 | int |
864dbfa3 | 472 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 473 | { |
a863c7d1 | 474 | dTHR; |
79072805 LW |
475 | register I32 paren; |
476 | register char *s; | |
477 | register I32 i; | |
d9f97599 | 478 | register REGEXP *rx; |
79072805 LW |
479 | |
480 | switch (*mg->mg_ptr) { | |
748a9306 | 481 | case '\001': /* ^A */ |
3280af22 | 482 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 483 | break; |
49460fe6 NIS |
484 | case '\003': /* ^C */ |
485 | sv_setiv(sv, (IV)PL_minus_c); | |
486 | break; | |
487 | ||
79072805 | 488 | case '\004': /* ^D */ |
3280af22 | 489 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
d056ab3f GS |
490 | #if defined(YYDEBUG) && defined(DEBUGGING) |
491 | PL_yydebug = (PL_debug & 1); | |
492 | #endif | |
79072805 | 493 | break; |
28f23441 | 494 | case '\005': /* ^E */ |
cd39f2b6 JH |
495 | #ifdef MACOS_TRADITIONAL |
496 | { | |
497 | char msg[256]; | |
498 | ||
bf4acbe4 GS |
499 | sv_setnv(sv,(double)gMacPerl_OSErr); |
500 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
cd39f2b6 JH |
501 | } |
502 | #else | |
28f23441 | 503 | #ifdef VMS |
504 | { | |
505 | # include <descrip.h> | |
506 | # include <starlet.h> | |
507 | char msg[255]; | |
508 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 509 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 510 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
511 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
512 | else | |
513 | sv_setpv(sv,""); | |
514 | } | |
515 | #else | |
88e89b8a | 516 | #ifdef OS2 |
fb73857a | 517 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 518 | sv_setnv(sv, (NV)errno); |
fb73857a | 519 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
520 | } else { | |
017f25f1 IZ |
521 | if (errno != errno_isOS2) { |
522 | int tmp = _syserrno(); | |
523 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
524 | Perl_rc = tmp; | |
525 | } | |
65202027 | 526 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 527 | sv_setpv(sv, os2error(Perl_rc)); |
528 | } | |
88e89b8a | 529 | #else |
22fae026 TM |
530 | #ifdef WIN32 |
531 | { | |
532 | DWORD dwErr = GetLastError(); | |
65202027 | 533 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 534 | if (dwErr) |
76e3520e | 535 | { |
0cb96387 | 536 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 537 | } |
22fae026 TM |
538 | else |
539 | sv_setpv(sv, ""); | |
540 | SetLastError(dwErr); | |
541 | } | |
542 | #else | |
65202027 | 543 | sv_setnv(sv, (NV)errno); |
28f23441 | 544 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
545 | #endif | |
88e89b8a | 546 | #endif |
22fae026 | 547 | #endif |
cd39f2b6 | 548 | #endif |
946ec16e | 549 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 550 | break; |
79072805 | 551 | case '\006': /* ^F */ |
3280af22 | 552 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 553 | break; |
a0d0e21e | 554 | case '\010': /* ^H */ |
3280af22 | 555 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 556 | break; |
9d116dd7 | 557 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
558 | if (PL_inplace) |
559 | sv_setpv(sv, PL_inplace); | |
79072805 | 560 | else |
3280af22 | 561 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 562 | break; |
28f23441 | 563 | case '\017': /* ^O */ |
3280af22 | 564 | sv_setpv(sv, PL_osname); |
28f23441 | 565 | break; |
79072805 | 566 | case '\020': /* ^P */ |
3280af22 | 567 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 568 | break; |
fb73857a | 569 | case '\023': /* ^S */ |
d58bf5aa MB |
570 | { |
571 | dTHR; | |
3280af22 | 572 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 573 | (void)SvOK_off(sv); |
3280af22 | 574 | else if (PL_in_eval) |
d58bf5aa MB |
575 | sv_setiv(sv, 1); |
576 | else | |
577 | sv_setiv(sv, 0); | |
578 | } | |
fb73857a | 579 | break; |
79072805 | 580 | case '\024': /* ^T */ |
88e89b8a | 581 | #ifdef BIG_TIME |
6b88bc9c | 582 | sv_setnv(sv, PL_basetime); |
88e89b8a | 583 | #else |
3280af22 | 584 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 585 | #endif |
79072805 | 586 | break; |
46487f74 | 587 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
588 | if (*(mg->mg_ptr+1) == '\0') |
589 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 590 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
591 | if (PL_compiling.cop_warnings == pWARN_NONE || |
592 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
593 | { |
594 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
595 | } | |
d3a7d8c7 | 596 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 JH |
597 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
598 | } | |
599 | else { | |
600 | sv_setsv(sv, PL_compiling.cop_warnings); | |
601 | } | |
d3a7d8c7 | 602 | SvPOK_only(sv); |
4438c4b7 | 603 | } |
46487f74 GS |
604 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
605 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
606 | break; |
607 | case '1': case '2': case '3': case '4': | |
608 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 609 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
610 | I32 s1, t1; |
611 | ||
a863c7d1 MB |
612 | /* |
613 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
614 | * XXX Does the new way break anything? | |
615 | */ | |
616 | paren = atoi(mg->mg_ptr); | |
79072805 | 617 | getparen: |
d9f97599 | 618 | if (paren <= rx->nparens && |
cf93c79d IZ |
619 | (s1 = rx->startp[paren]) != -1 && |
620 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 621 | { |
cf93c79d IZ |
622 | i = t1 - s1; |
623 | s = rx->subbeg + s1; | |
01ec43d0 | 624 | if (!rx->subbeg) |
c2e66d9e GS |
625 | break; |
626 | ||
13f57bf8 | 627 | getrx: |
748a9306 | 628 | if (i >= 0) { |
13f57bf8 | 629 | bool was_tainted; |
3280af22 NIS |
630 | if (PL_tainting) { |
631 | was_tainted = PL_tainted; | |
632 | PL_tainted = FALSE; | |
13f57bf8 | 633 | } |
cf93c79d | 634 | sv_setpvn(sv, s, i); |
7e2040f0 GS |
635 | if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) |
636 | SvUTF8_on(sv); | |
637 | else | |
638 | SvUTF8_off(sv); | |
3280af22 NIS |
639 | if (PL_tainting) |
640 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
641 | break; |
642 | } | |
79072805 | 643 | } |
79072805 | 644 | } |
3280af22 | 645 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
646 | break; |
647 | case '+': | |
3280af22 | 648 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 649 | paren = rx->lastparen; |
a0d0e21e LW |
650 | if (paren) |
651 | goto getparen; | |
79072805 | 652 | } |
3280af22 | 653 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
654 | break; |
655 | case '`': | |
3280af22 | 656 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
657 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
658 | i = rx->startp[0]; | |
13f57bf8 | 659 | goto getrx; |
79072805 | 660 | } |
79072805 | 661 | } |
3280af22 | 662 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
663 | break; |
664 | case '\'': | |
3280af22 | 665 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
666 | if (rx->subbeg && rx->endp[0] != -1) { |
667 | s = rx->subbeg + rx->endp[0]; | |
668 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 669 | goto getrx; |
79072805 | 670 | } |
79072805 | 671 | } |
3280af22 | 672 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
673 | break; |
674 | case '.': | |
675 | #ifndef lint | |
3280af22 NIS |
676 | if (GvIO(PL_last_in_gv)) { |
677 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
678 | } |
679 | #endif | |
680 | break; | |
681 | case '?': | |
809a5acc | 682 | { |
809a5acc | 683 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 684 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
685 | LvTARGOFF(sv) = PL_statusvalue; |
686 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 687 | #endif |
809a5acc | 688 | } |
79072805 LW |
689 | break; |
690 | case '^': | |
3280af22 | 691 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
692 | if (s) |
693 | sv_setpv(sv,s); | |
694 | else { | |
3280af22 | 695 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
696 | sv_catpv(sv,"_TOP"); |
697 | } | |
698 | break; | |
699 | case '~': | |
3280af22 | 700 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 701 | if (!s) |
3280af22 | 702 | s = GvENAME(PL_defoutgv); |
79072805 LW |
703 | sv_setpv(sv,s); |
704 | break; | |
705 | #ifndef lint | |
706 | case '=': | |
3280af22 | 707 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
708 | break; |
709 | case '-': | |
3280af22 | 710 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
711 | break; |
712 | case '%': | |
3280af22 | 713 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
714 | break; |
715 | #endif | |
716 | case ':': | |
717 | break; | |
718 | case '/': | |
719 | break; | |
720 | case '[': | |
3280af22 | 721 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
722 | break; |
723 | case '|': | |
3280af22 | 724 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
725 | break; |
726 | case ',': | |
3280af22 | 727 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
728 | break; |
729 | case '\\': | |
3280af22 | 730 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
731 | break; |
732 | case '#': | |
3280af22 | 733 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
734 | break; |
735 | case '!': | |
a5f75d66 | 736 | #ifdef VMS |
65202027 | 737 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 738 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 739 | #else |
88e89b8a | 740 | { |
741 | int saveerrno = errno; | |
65202027 | 742 | sv_setnv(sv, (NV)errno); |
88e89b8a | 743 | #ifdef OS2 |
ed344e4f IZ |
744 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
745 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 746 | else |
a5f75d66 | 747 | #endif |
2304df62 | 748 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 749 | errno = saveerrno; |
750 | } | |
751 | #endif | |
946ec16e | 752 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
753 | break; |
754 | case '<': | |
3280af22 | 755 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
756 | break; |
757 | case '>': | |
3280af22 | 758 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
759 | break; |
760 | case '(': | |
3280af22 | 761 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 762 | #ifdef HAS_GETGROUPS |
785fb66b | 763 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 764 | #endif |
79072805 LW |
765 | goto add_groups; |
766 | case ')': | |
3280af22 | 767 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 768 | #ifdef HAS_GETGROUPS |
785fb66b | 769 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 770 | #endif |
79072805 | 771 | add_groups: |
79072805 | 772 | #ifdef HAS_GETGROUPS |
79072805 | 773 | { |
a0d0e21e | 774 | Groups_t gary[NGROUPS]; |
79072805 | 775 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 776 | while (--i >= 0) |
785fb66b | 777 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
778 | } |
779 | #endif | |
155aba94 | 780 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
781 | break; |
782 | case '*': | |
783 | break; | |
cd39f2b6 | 784 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
785 | case '0': |
786 | break; | |
cd39f2b6 | 787 | #endif |
a863c7d1 MB |
788 | #ifdef USE_THREADS |
789 | case '@': | |
38a03e6e | 790 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
791 | break; |
792 | #endif /* USE_THREADS */ | |
79072805 | 793 | } |
a0d0e21e | 794 | return 0; |
79072805 LW |
795 | } |
796 | ||
797 | int | |
864dbfa3 | 798 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
799 | { |
800 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
801 | ||
802 | if (uf && uf->uf_val) | |
803 | (*uf->uf_val)(uf->uf_index, sv); | |
804 | return 0; | |
805 | } | |
806 | ||
807 | int | |
864dbfa3 | 808 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
809 | { |
810 | register char *s; | |
88e89b8a | 811 | char *ptr; |
5aabfad6 | 812 | STRLEN len, klen; |
a0d0e21e | 813 | I32 i; |
1e422769 | 814 | |
a0d0e21e | 815 | s = SvPV(sv,len); |
5aabfad6 | 816 | ptr = MgPV(mg,klen); |
88e89b8a | 817 | my_setenv(ptr, s); |
1e422769 | 818 | |
a0d0e21e LW |
819 | #ifdef DYNAMIC_ENV_FETCH |
820 | /* We just undefd an environment var. Is a replacement */ | |
821 | /* waiting in the wings? */ | |
822 | if (!len) { | |
5aabfad6 | 823 | SV **valp; |
6b88bc9c | 824 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 825 | s = SvPV(*valp, len); |
a0d0e21e LW |
826 | } |
827 | #endif | |
1e422769 | 828 | |
39e571d4 | 829 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
830 | /* And you'll never guess what the dog had */ |
831 | /* in its mouth... */ | |
3280af22 | 832 | if (PL_tainting) { |
1e422769 | 833 | MgTAINTEDDIR_off(mg); |
834 | #ifdef VMS | |
5aabfad6 | 835 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 836 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
837 | struct stat sbuf; | |
838 | int i = 0, j = 0; | |
839 | ||
840 | do { /* DCL$PATH may be a search list */ | |
841 | while (1) { /* as may dev portion of any element */ | |
842 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
843 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
844 | cando_by_name(S_IWUSR,0,elt) ) { | |
845 | MgTAINTEDDIR_on(mg); | |
846 | return 0; | |
847 | } | |
848 | } | |
849 | if ((cp = strchr(elt, ':')) != Nullch) | |
850 | *cp = '\0'; | |
851 | if (my_trnlnm(elt, eltbuf, j++)) | |
852 | elt = eltbuf; | |
853 | else | |
854 | break; | |
855 | } | |
856 | j = 0; | |
857 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
858 | } | |
859 | #endif /* VMS */ | |
5aabfad6 | 860 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 861 | char *strend = s + len; |
463ee0b2 LW |
862 | |
863 | while (s < strend) { | |
96827780 | 864 | char tmpbuf[256]; |
1e422769 | 865 | struct stat st; |
96827780 | 866 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 867 | s, strend, ':', &i); |
463ee0b2 | 868 | s++; |
96827780 MB |
869 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
870 | || *tmpbuf != '/' | |
c6ed36e1 | 871 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 872 | MgTAINTEDDIR_on(mg); |
1e422769 | 873 | return 0; |
874 | } | |
463ee0b2 | 875 | } |
79072805 LW |
876 | } |
877 | } | |
39e571d4 | 878 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 879 | |
79072805 LW |
880 | return 0; |
881 | } | |
882 | ||
883 | int | |
864dbfa3 | 884 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 885 | { |
2d8e6c8d GS |
886 | STRLEN n_a; |
887 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
888 | return 0; |
889 | } | |
890 | ||
88e89b8a | 891 | int |
864dbfa3 | 892 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 893 | { |
894 | #if defined(VMS) | |
cea2e8a9 | 895 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 896 | #else |
d58bf5aa | 897 | dTHR; |
3280af22 | 898 | if (PL_localizing) { |
fb73857a | 899 | HE* entry; |
2d8e6c8d | 900 | STRLEN n_a; |
fb73857a | 901 | magic_clear_all_env(sv,mg); |
902 | hv_iterinit((HV*)sv); | |
155aba94 | 903 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 904 | I32 keylen; |
905 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 906 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 907 | } |
908 | } | |
909 | #endif | |
910 | return 0; | |
911 | } | |
912 | ||
913 | int | |
864dbfa3 | 914 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 915 | { |
3e3baf6d | 916 | #if defined(VMS) |
cea2e8a9 | 917 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 918 | #else |
7766f137 GS |
919 | # ifdef PERL_IMPLICIT_SYS |
920 | PerlEnv_clearenv(); | |
921 | # else | |
922 | # ifdef WIN32 | |
3e3baf6d TB |
923 | char *envv = GetEnvironmentStrings(); |
924 | char *cur = envv; | |
925 | STRLEN len; | |
926 | while (*cur) { | |
927 | char *end = strchr(cur,'='); | |
928 | if (end && end != cur) { | |
929 | *end = '\0'; | |
930 | my_setenv(cur,Nullch); | |
931 | *end = '='; | |
ac5c734f | 932 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
933 | } |
934 | else if ((len = strlen(cur))) | |
935 | cur += len+1; | |
936 | } | |
937 | FreeEnvironmentStrings(envv); | |
7766f137 | 938 | # else |
d308986b | 939 | # ifdef __CYGWIN__ |
2c2d71f5 JH |
940 | I32 i; |
941 | for (i = 0; environ[i]; i++) | |
d702ae42 | 942 | safesysfree(environ[i]); |
7766f137 GS |
943 | # else |
944 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
945 | I32 i; |
946 | ||
3280af22 | 947 | if (environ == PL_origenviron) |
f2517201 | 948 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
949 | else |
950 | for (i = 0; environ[i]; i++) | |
f2517201 | 951 | safesysfree(environ[i]); |
7766f137 | 952 | # endif /* PERL_USE_SAFE_PUTENV */ |
d308986b | 953 | # endif /* __CYGWIN__ */ |
f2517201 | 954 | |
66b1d557 HM |
955 | environ[0] = Nullch; |
956 | ||
7766f137 GS |
957 | # endif /* WIN32 */ |
958 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 959 | #endif /* VMS */ |
3e3baf6d | 960 | return 0; |
66b1d557 HM |
961 | } |
962 | ||
64ca3a65 | 963 | #ifndef PERL_MICRO |
66b1d557 | 964 | int |
864dbfa3 | 965 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 966 | { |
967 | I32 i; | |
2d8e6c8d | 968 | STRLEN n_a; |
88e89b8a | 969 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 970 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 971 | if (i) { |
22c35a8c GS |
972 | if(PL_psig_ptr[i]) |
973 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 974 | else { |
ff68c719 | 975 | Sighandler_t sigstate = rsignal_state(i); |
976 | ||
88e89b8a | 977 | /* cache state so we don't fetch it again */ |
ff68c719 | 978 | if(sigstate == SIG_IGN) |
88e89b8a | 979 | sv_setpv(sv,"IGNORE"); |
980 | else | |
3280af22 | 981 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 982 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 983 | SvTEMP_off(sv); |
984 | } | |
985 | } | |
986 | return 0; | |
987 | } | |
988 | int | |
864dbfa3 | 989 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 990 | { |
991 | I32 i; | |
2d8e6c8d | 992 | STRLEN n_a; |
88e89b8a | 993 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 994 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 995 | if (i) { |
22c35a8c GS |
996 | if(PL_psig_ptr[i]) { |
997 | SvREFCNT_dec(PL_psig_ptr[i]); | |
998 | PL_psig_ptr[i]=0; | |
88e89b8a | 999 | } |
22c35a8c GS |
1000 | if(PL_psig_name[i]) { |
1001 | SvREFCNT_dec(PL_psig_name[i]); | |
1002 | PL_psig_name[i]=0; | |
88e89b8a | 1003 | } |
1004 | } | |
1005 | return 0; | |
1006 | } | |
3d37d572 | 1007 | |
85e6fe83 | 1008 | int |
864dbfa3 | 1009 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1010 | { |
11343788 | 1011 | dTHR; |
79072805 LW |
1012 | register char *s; |
1013 | I32 i; | |
748a9306 | 1014 | SV** svp; |
e72dc28c | 1015 | STRLEN len; |
a0d0e21e | 1016 | |
e72dc28c | 1017 | s = MgPV(mg,len); |
748a9306 LW |
1018 | if (*s == '_') { |
1019 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1020 | svp = &PL_diehook; |
748a9306 | 1021 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1022 | svp = &PL_warnhook; |
748a9306 | 1023 | else |
cea2e8a9 | 1024 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1025 | i = 0; |
4633a7c4 LW |
1026 | if (*svp) { |
1027 | SvREFCNT_dec(*svp); | |
1028 | *svp = 0; | |
1029 | } | |
748a9306 LW |
1030 | } |
1031 | else { | |
1032 | i = whichsig(s); /* ...no, a brick */ | |
1033 | if (!i) { | |
e476b1b5 | 1034 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1035 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1036 | return 0; |
1037 | } | |
22c35a8c GS |
1038 | SvREFCNT_dec(PL_psig_name[i]); |
1039 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1040 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1041 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1042 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1043 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1044 | } |
a0d0e21e | 1045 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1046 | if (i) |
3280af22 | 1047 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1048 | else |
1049 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1050 | return 0; |
1051 | } | |
e72dc28c | 1052 | s = SvPV_force(sv,len); |
748a9306 LW |
1053 | if (strEQ(s,"IGNORE")) { |
1054 | if (i) | |
ff68c719 | 1055 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1056 | else |
1057 | *svp = 0; | |
1058 | } | |
1059 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1060 | if (i) | |
ff68c719 | 1061 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1062 | else |
1063 | *svp = 0; | |
1064 | } | |
79072805 | 1065 | else { |
5aabfad6 | 1066 | /* |
1067 | * We should warn if HINT_STRICT_REFS, but without | |
1068 | * access to a known hint bit in a known OP, we can't | |
1069 | * tell whether HINT_STRICT_REFS is in force or not. | |
1070 | */ | |
46fc3d4c | 1071 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1072 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1073 | if (i) |
3280af22 | 1074 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1075 | else |
1076 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1077 | } |
1078 | return 0; | |
1079 | } | |
64ca3a65 | 1080 | #endif /* !PERL_MICRO */ |
79072805 LW |
1081 | |
1082 | int | |
864dbfa3 | 1083 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1084 | { |
3280af22 | 1085 | PL_sub_generation++; |
463ee0b2 LW |
1086 | return 0; |
1087 | } | |
1088 | ||
1089 | int | |
864dbfa3 | 1090 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1091 | { |
a0d0e21e | 1092 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1093 | PL_amagic_generation++; |
463ee0b2 | 1094 | |
a0d0e21e LW |
1095 | return 0; |
1096 | } | |
463ee0b2 | 1097 | |
946ec16e | 1098 | int |
864dbfa3 | 1099 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1100 | { |
1101 | HV *hv = (HV*)LvTARG(sv); | |
1102 | HE *entry; | |
1103 | I32 i = 0; | |
1104 | ||
1105 | if (hv) { | |
1106 | (void) hv_iterinit(hv); | |
33c27489 | 1107 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1108 | i = HvKEYS(hv); |
1109 | else { | |
1110 | /*SUPPRESS 560*/ | |
155aba94 | 1111 | while ((entry = hv_iternext(hv))) { |
6ff81951 GS |
1112 | i++; |
1113 | } | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | sv_setiv(sv, (IV)i); | |
1118 | return 0; | |
1119 | } | |
1120 | ||
1121 | int | |
864dbfa3 | 1122 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1123 | { |
1124 | if (LvTARG(sv)) { | |
1125 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1126 | } |
1127 | return 0; | |
93965878 | 1128 | } |
946ec16e | 1129 | |
e336de0d | 1130 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1131 | STATIC int |
cea2e8a9 | 1132 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1133 | { |
1134 | dSP; | |
463ee0b2 | 1135 | |
924508f0 GS |
1136 | PUSHMARK(SP); |
1137 | EXTEND(SP, n); | |
33c27489 | 1138 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1139 | if (n > 1) { |
1140 | if (mg->mg_ptr) { | |
565764a8 | 1141 | if (mg->mg_len >= 0) |
79cb57f6 | 1142 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1143 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1144 | PUSHs((SV*)mg->mg_ptr); |
1145 | } | |
1146 | else if (mg->mg_type == 'p') { | |
565764a8 | 1147 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1148 | } |
1149 | } | |
1150 | if (n > 2) { | |
1151 | PUSHs(val); | |
88e89b8a | 1152 | } |
463ee0b2 LW |
1153 | PUTBACK; |
1154 | ||
864dbfa3 | 1155 | return call_method(meth, flags); |
946ec16e | 1156 | } |
1157 | ||
76e3520e | 1158 | STATIC int |
cea2e8a9 | 1159 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1160 | { |
1161 | dSP; | |
463ee0b2 | 1162 | |
a0d0e21e LW |
1163 | ENTER; |
1164 | SAVETMPS; | |
e788e7d3 | 1165 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1166 | |
33c27489 | 1167 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1168 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1169 | } |
463ee0b2 | 1170 | |
d3acc0f7 | 1171 | POPSTACK; |
a0d0e21e LW |
1172 | FREETMPS; |
1173 | LEAVE; | |
1174 | return 0; | |
1175 | } | |
463ee0b2 | 1176 | |
a0d0e21e | 1177 | int |
864dbfa3 | 1178 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1179 | { |
1180 | magic_methpack(sv,mg,"FETCH"); | |
1181 | if (mg->mg_ptr) | |
1182 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1183 | return 0; |
1184 | } | |
1185 | ||
1186 | int | |
864dbfa3 | 1187 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1188 | { |
1189 | dSP; | |
a60c0954 | 1190 | ENTER; |
e788e7d3 | 1191 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1192 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1193 | POPSTACK; |
a60c0954 | 1194 | LEAVE; |
463ee0b2 LW |
1195 | return 0; |
1196 | } | |
1197 | ||
1198 | int | |
864dbfa3 | 1199 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1200 | { |
a0d0e21e LW |
1201 | return magic_methpack(sv,mg,"DELETE"); |
1202 | } | |
463ee0b2 | 1203 | |
93965878 NIS |
1204 | |
1205 | U32 | |
864dbfa3 | 1206 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 | 1207 | { |
e336de0d | 1208 | dSP; |
93965878 NIS |
1209 | U32 retval = 0; |
1210 | ||
1211 | ENTER; | |
1212 | SAVETMPS; | |
e788e7d3 | 1213 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1214 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1215 | sv = *PL_stack_sp--; |
a60c0954 | 1216 | retval = (U32) SvIV(sv)-1; |
93965878 | 1217 | } |
d3acc0f7 | 1218 | POPSTACK; |
93965878 NIS |
1219 | FREETMPS; |
1220 | LEAVE; | |
1221 | return retval; | |
1222 | } | |
1223 | ||
cea2e8a9 GS |
1224 | int |
1225 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1226 | { |
1227 | dSP; | |
463ee0b2 | 1228 | |
e336de0d | 1229 | ENTER; |
e788e7d3 | 1230 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1231 | PUSHMARK(SP); |
33c27489 | 1232 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1233 | PUTBACK; |
864dbfa3 | 1234 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1235 | POPSTACK; |
a60c0954 | 1236 | LEAVE; |
463ee0b2 LW |
1237 | return 0; |
1238 | } | |
1239 | ||
1240 | int | |
864dbfa3 | 1241 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1242 | { |
463ee0b2 | 1243 | dSP; |
dff6d3cd | 1244 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1245 | |
1246 | ENTER; | |
a0d0e21e | 1247 | SAVETMPS; |
e788e7d3 | 1248 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1249 | PUSHMARK(SP); |
1250 | EXTEND(SP, 2); | |
33c27489 | 1251 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1252 | if (SvOK(key)) |
1253 | PUSHs(key); | |
1254 | PUTBACK; | |
1255 | ||
864dbfa3 | 1256 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1257 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1258 | |
d3acc0f7 | 1259 | POPSTACK; |
a0d0e21e LW |
1260 | FREETMPS; |
1261 | LEAVE; | |
79072805 LW |
1262 | return 0; |
1263 | } | |
1264 | ||
1265 | int | |
864dbfa3 | 1266 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1267 | { |
1268 | return magic_methpack(sv,mg,"EXISTS"); | |
1269 | } | |
1270 | ||
1271 | int | |
864dbfa3 | 1272 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1273 | { |
11343788 | 1274 | dTHR; |
79072805 LW |
1275 | OP *o; |
1276 | I32 i; | |
1277 | GV* gv; | |
1278 | SV** svp; | |
2d8e6c8d | 1279 | STRLEN n_a; |
79072805 | 1280 | |
3280af22 | 1281 | gv = PL_DBline; |
79072805 | 1282 | i = SvTRUE(sv); |
188ea221 | 1283 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1284 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1285 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1286 | o->op_private = i; |
79072805 LW |
1287 | return 0; |
1288 | } | |
1289 | ||
1290 | int | |
864dbfa3 | 1291 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1292 | { |
0f15f207 | 1293 | dTHR; |
3280af22 | 1294 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1295 | return 0; |
1296 | } | |
1297 | ||
1298 | int | |
864dbfa3 | 1299 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1300 | { |
0f15f207 | 1301 | dTHR; |
3280af22 | 1302 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1303 | return 0; |
1304 | } | |
1305 | ||
1306 | int | |
864dbfa3 | 1307 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1308 | { |
1309 | SV* lsv = LvTARG(sv); | |
1310 | ||
1311 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1312 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1313 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1314 | dTHR; |
a0ed51b3 | 1315 | I32 i = mg->mg_len; |
7e2040f0 | 1316 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1317 | sv_pos_b2u(lsv, &i); |
1318 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1319 | return 0; |
1320 | } | |
1321 | } | |
1322 | (void)SvOK_off(sv); | |
1323 | return 0; | |
1324 | } | |
1325 | ||
1326 | int | |
864dbfa3 | 1327 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1328 | { |
1329 | SV* lsv = LvTARG(sv); | |
1330 | SSize_t pos; | |
1331 | STRLEN len; | |
c00206c8 | 1332 | STRLEN ulen = 0; |
c485e607 | 1333 | dTHR; |
a0d0e21e LW |
1334 | |
1335 | mg = 0; | |
1336 | ||
1337 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1338 | mg = mg_find(lsv, 'g'); | |
1339 | if (!mg) { | |
1340 | if (!SvOK(sv)) | |
1341 | return 0; | |
1342 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1343 | mg = mg_find(lsv, 'g'); | |
1344 | } | |
1345 | else if (!SvOK(sv)) { | |
565764a8 | 1346 | mg->mg_len = -1; |
a0d0e21e LW |
1347 | return 0; |
1348 | } | |
1349 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1350 | ||
c485e607 | 1351 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1352 | |
7e2040f0 | 1353 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1354 | ulen = sv_len_utf8(lsv); |
1355 | if (ulen) | |
1356 | len = ulen; | |
a0ed51b3 LW |
1357 | } |
1358 | ||
a0d0e21e LW |
1359 | if (pos < 0) { |
1360 | pos += len; | |
1361 | if (pos < 0) | |
1362 | pos = 0; | |
1363 | } | |
1364 | else if (pos > len) | |
1365 | pos = len; | |
a0ed51b3 LW |
1366 | |
1367 | if (ulen) { | |
1368 | I32 p = pos; | |
1369 | sv_pos_u2b(lsv, &p, 0); | |
1370 | pos = p; | |
1371 | } | |
1372 | ||
565764a8 | 1373 | mg->mg_len = pos; |
71be2cbc | 1374 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1375 | |
79072805 LW |
1376 | return 0; |
1377 | } | |
1378 | ||
1379 | int | |
864dbfa3 | 1380 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1381 | { |
8646b087 | 1382 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1383 | SvFAKE_off(sv); | |
946ec16e | 1384 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1385 | SvFAKE_on(sv); |
1386 | } | |
1387 | else | |
946ec16e | 1388 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1389 | return 0; |
1390 | } | |
1391 | ||
1392 | int | |
864dbfa3 | 1393 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1394 | { |
1395 | register char *s; | |
1396 | GV* gv; | |
2d8e6c8d | 1397 | STRLEN n_a; |
79072805 LW |
1398 | |
1399 | if (!SvOK(sv)) | |
1400 | return 0; | |
2d8e6c8d | 1401 | s = SvPV(sv, n_a); |
79072805 LW |
1402 | if (*s == '*' && s[1]) |
1403 | s++; | |
85e6fe83 | 1404 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1405 | if (sv == (SV*)gv) |
1406 | return 0; | |
1407 | if (GvGP(sv)) | |
88e89b8a | 1408 | gp_free((GV*)sv); |
79072805 | 1409 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1410 | return 0; |
1411 | } | |
1412 | ||
1413 | int | |
864dbfa3 | 1414 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1415 | { |
1416 | STRLEN len; | |
1417 | SV *lsv = LvTARG(sv); | |
1418 | char *tmps = SvPV(lsv,len); | |
1419 | I32 offs = LvTARGOFF(sv); | |
1420 | I32 rem = LvTARGLEN(sv); | |
1421 | ||
1422 | if (offs > len) | |
1423 | offs = len; | |
1424 | if (rem + offs > len) | |
1425 | rem = len - offs; | |
1426 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
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 */ |
3280af22 NIS |
1714 | if (PL_osname) |
1715 | Safefree(PL_osname); | |
28f23441 | 1716 | if (SvOK(sv)) |
2d8e6c8d | 1717 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1718 | else |
3280af22 | 1719 | PL_osname = Nullch; |
28f23441 | 1720 | break; |
79072805 | 1721 | case '\020': /* ^P */ |
3280af22 | 1722 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1723 | if (PL_perldb && !PL_DBsingle) |
1724 | init_debugger(); | |
79072805 LW |
1725 | break; |
1726 | case '\024': /* ^T */ | |
88e89b8a | 1727 | #ifdef BIG_TIME |
6b88bc9c | 1728 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1729 | #else |
3280af22 | 1730 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1731 | #endif |
79072805 | 1732 | break; |
46487f74 | 1733 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1734 | if (*(mg->mg_ptr+1) == '\0') { |
1735 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1736 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1737 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) | |
0453d815 | 1738 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1739 | } |
599cee73 | 1740 | } |
6a818117 | 1741 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1742 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1743 | if (!SvPOK(sv) && PL_localizing) { |
1744 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1745 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1746 | break; |
1747 | } | |
d5a71f30 | 1748 | if (isWARN_on(sv, WARN_ALL) && !isWARNf_on(sv, WARN_ALL)) { |
d3a7d8c7 | 1749 | PL_compiling.cop_warnings = pWARN_ALL; |
4438c4b7 JH |
1750 | PL_dowarn |= G_WARN_ONCE ; |
1751 | } | |
d3a7d8c7 | 1752 | else { |
b5477537 | 1753 | STRLEN len, i; |
d3a7d8c7 | 1754 | int accumulate = 0 ; |
d3a7d8c7 GS |
1755 | char * ptr = (char*)SvPV(sv, len) ; |
1756 | for (i = 0 ; i < len ; ++i) | |
1757 | accumulate += ptr[i] ; | |
1758 | if (!accumulate) | |
1759 | PL_compiling.cop_warnings = pWARN_NONE; | |
1760 | else { | |
1761 | if (specialWARN(PL_compiling.cop_warnings)) | |
1762 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1763 | else | |
1764 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1765 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1766 | PL_dowarn |= G_WARN_ONCE ; | |
1767 | } | |
1768 | } | |
4438c4b7 | 1769 | } |
971a9dd3 | 1770 | } |
46487f74 GS |
1771 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1772 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1773 | break; |
1774 | case '.': | |
3280af22 NIS |
1775 | if (PL_localizing) { |
1776 | if (PL_localizing == 1) | |
7766f137 | 1777 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1778 | } |
3280af22 NIS |
1779 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1780 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1781 | break; |
1782 | case '^': | |
3280af22 | 1783 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1784 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1785 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1786 | break; |
1787 | case '~': | |
3280af22 | 1788 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1789 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1790 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1791 | break; |
1792 | case '=': | |
3280af22 | 1793 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1794 | break; |
1795 | case '-': | |
3280af22 NIS |
1796 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1797 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1798 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1799 | break; |
1800 | case '%': | |
3280af22 | 1801 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1802 | break; |
1803 | case '|': | |
4b65379b | 1804 | { |
3280af22 | 1805 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1806 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1807 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1808 | else { | |
1809 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1810 | PerlIO *ofp = IoOFP(io); | |
1811 | if (ofp) | |
1812 | (void)PerlIO_flush(ofp); | |
1813 | IoFLAGS(io) |= IOf_FLUSH; | |
1814 | } | |
1815 | } | |
79072805 LW |
1816 | } |
1817 | break; | |
1818 | case '*': | |
463ee0b2 | 1819 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1820 | PL_multiline = (i != 0); |
79072805 LW |
1821 | break; |
1822 | case '/': | |
3280af22 NIS |
1823 | SvREFCNT_dec(PL_nrs); |
1824 | PL_nrs = newSVsv(sv); | |
1825 | SvREFCNT_dec(PL_rs); | |
1826 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1827 | break; |
1828 | case '\\': | |
3280af22 NIS |
1829 | if (PL_ors) |
1830 | Safefree(PL_ors); | |
009c130f GS |
1831 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
1832 | s = SvPV(sv,PL_orslen); | |
1833 | PL_ors = savepvn(s,PL_orslen); | |
1834 | } | |
e3c19b7b | 1835 | else { |
3280af22 NIS |
1836 | PL_ors = Nullch; |
1837 | PL_orslen = 0; | |
e3c19b7b | 1838 | } |
79072805 LW |
1839 | break; |
1840 | case ',': | |
3280af22 NIS |
1841 | if (PL_ofs) |
1842 | Safefree(PL_ofs); | |
1843 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1844 | break; |
1845 | case '#': | |
3280af22 NIS |
1846 | if (PL_ofmt) |
1847 | Safefree(PL_ofmt); | |
2d8e6c8d | 1848 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1849 | break; |
1850 | case '[': | |
3280af22 | 1851 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1852 | break; |
1853 | case '?': | |
ff0cee69 | 1854 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1855 | if (PL_localizing == 2) { |
1856 | PL_statusvalue = LvTARGOFF(sv); | |
1857 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1858 | } |
1859 | else | |
1860 | #endif | |
1861 | #ifdef VMSISH_STATUS | |
1862 | if (VMSISH_STATUS) | |
1863 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1864 | else | |
1865 | #endif | |
1866 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1867 | break; |
1868 | case '!': | |
78987ded | 1869 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1870 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1871 | break; |
1872 | case '<': | |
3280af22 NIS |
1873 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1874 | if (PL_delaymagic) { | |
1875 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1876 | break; /* don't do magic till later */ |
1877 | } | |
1878 | #ifdef HAS_SETRUID | |
b28d0864 | 1879 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1880 | #else |
1881 | #ifdef HAS_SETREUID | |
3280af22 | 1882 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1883 | #else |
85e6fe83 | 1884 | #ifdef HAS_SETRESUID |
b28d0864 | 1885 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1886 | #else |
b28d0864 NIS |
1887 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1888 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1889 | else { |
d8eceb89 | 1890 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1891 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1892 | } |
79072805 LW |
1893 | #endif |
1894 | #endif | |
85e6fe83 | 1895 | #endif |
d8eceb89 | 1896 | PL_uid = PerlProc_getuid(); |
3280af22 | 1897 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1898 | break; |
1899 | case '>': | |
3280af22 NIS |
1900 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1901 | if (PL_delaymagic) { | |
1902 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1903 | break; /* don't do magic till later */ |
1904 | } | |
1905 | #ifdef HAS_SETEUID | |
3280af22 | 1906 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1907 | #else |
1908 | #ifdef HAS_SETREUID | |
b28d0864 | 1909 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1910 | #else |
1911 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1912 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1913 | #else |
b28d0864 NIS |
1914 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1915 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1916 | else { |
e8ee3774 | 1917 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1918 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1919 | } |
79072805 LW |
1920 | #endif |
1921 | #endif | |
85e6fe83 | 1922 | #endif |
d8eceb89 | 1923 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1924 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1925 | break; |
1926 | case '(': | |
3280af22 NIS |
1927 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1928 | if (PL_delaymagic) { | |
1929 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1930 | break; /* don't do magic till later */ |
1931 | } | |
1932 | #ifdef HAS_SETRGID | |
b28d0864 | 1933 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1934 | #else |
1935 | #ifdef HAS_SETREGID | |
3280af22 | 1936 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1937 | #else |
1938 | #ifdef HAS_SETRESGID | |
b28d0864 | 1939 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1940 | #else |
b28d0864 NIS |
1941 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1942 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1943 | else { |
d8eceb89 | 1944 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 1945 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1946 | } |
79072805 LW |
1947 | #endif |
1948 | #endif | |
85e6fe83 | 1949 | #endif |
d8eceb89 | 1950 | PL_gid = PerlProc_getgid(); |
3280af22 | 1951 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1952 | break; |
1953 | case ')': | |
5cd24f17 | 1954 | #ifdef HAS_SETGROUPS |
1955 | { | |
2d8e6c8d | 1956 | char *p = SvPV(sv, len); |
5cd24f17 | 1957 | Groups_t gary[NGROUPS]; |
1958 | ||
5cd24f17 | 1959 | while (isSPACE(*p)) |
1960 | ++p; | |
2d4389e4 | 1961 | PL_egid = Atol(p); |
5cd24f17 | 1962 | for (i = 0; i < NGROUPS; ++i) { |
1963 | while (*p && !isSPACE(*p)) | |
1964 | ++p; | |
1965 | while (isSPACE(*p)) | |
1966 | ++p; | |
1967 | if (!*p) | |
1968 | break; | |
2d4389e4 | 1969 | gary[i] = Atol(p); |
5cd24f17 | 1970 | } |
8cc95fdb | 1971 | if (i) |
1972 | (void)setgroups(i, gary); | |
5cd24f17 | 1973 | } |
1974 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1975 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1976 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1977 | if (PL_delaymagic) { |
1978 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1979 | break; /* don't do magic till later */ |
1980 | } | |
1981 | #ifdef HAS_SETEGID | |
3280af22 | 1982 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1983 | #else |
1984 | #ifdef HAS_SETREGID | |
b28d0864 | 1985 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1986 | #else |
1987 | #ifdef HAS_SETRESGID | |
b28d0864 | 1988 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1989 | #else |
b28d0864 NIS |
1990 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1991 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1992 | else { |
d8eceb89 | 1993 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 1994 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 1995 | } |
79072805 LW |
1996 | #endif |
1997 | #endif | |
85e6fe83 | 1998 | #endif |
d8eceb89 | 1999 | PL_egid = PerlProc_getegid(); |
3280af22 | 2000 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2001 | break; |
2002 | case ':': | |
2d8e6c8d | 2003 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2004 | break; |
cd39f2b6 | 2005 | #ifndef MACOS_TRADITIONAL |
79072805 | 2006 | case '0': |
4bc88a62 PS |
2007 | #ifdef HAS_SETPROCTITLE |
2008 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2009 | * show a string from the process struct and provide | |
2010 | * the setproctitle() routine to manipulate that. */ | |
2011 | { | |
2012 | s = SvPV(sv, len); | |
9aad2c0e JH |
2013 | # if __FreeBSD_version >= 410001 |
2014 | /* The leading "-" removes the "perl: " prefix, | |
4bc88a62 PS |
2015 | * but not the "(perl) suffix from the ps(1) |
2016 | * output, because that's what ps(1) shows if the | |
2017 | * argv[] is modified. */ | |
2018 | setproctitle("-%s", s, len + 1); | |
9aad2c0e | 2019 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2020 | /* This doesn't really work if you assume that |
2021 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2022 | * because in ps(1) output the result will be like | |
2023 | * sprintf("perl: %s (perl)", s) | |
2024 | * I guess this is a security feature: | |
2025 | * one (a user process) cannot get rid of the original name. | |
2026 | * --jhi */ | |
2027 | setproctitle("%s", s); | |
2028 | # endif | |
2029 | } | |
2030 | #endif | |
3280af22 NIS |
2031 | if (!PL_origalen) { |
2032 | s = PL_origargv[0]; | |
79072805 LW |
2033 | s += strlen(s); |
2034 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2035 | for (i = 1; i < PL_origargc; i++) { |
2036 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2037 | #ifdef OS2 |
6b88bc9c | 2038 | || PL_origargv[i] == s + 2 |
fb73857a | 2039 | #endif |
2040 | ) | |
379c4362 GS |
2041 | { |
2042 | ++s; | |
2043 | s += strlen(s); /* this one is ok too */ | |
2044 | } | |
fb73857a | 2045 | else |
2046 | break; | |
79072805 | 2047 | } |
bbce6d69 | 2048 | /* can grab env area too? */ |
3280af22 | 2049 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2050 | #ifdef OS2 |
6b88bc9c | 2051 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 2052 | #endif |
2053 | )) { | |
66b1d557 | 2054 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2055 | /* force copy of environment */ |
3280af22 | 2056 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2057 | if (PL_origenviron[i] == s + 1) { |
2058 | ++s; | |
2059 | s += strlen(s); | |
2060 | } | |
fb73857a | 2061 | else |
2062 | break; | |
79072805 | 2063 | } |
3280af22 | 2064 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2065 | } |
a0d0e21e | 2066 | s = SvPV_force(sv,len); |
8990e307 | 2067 | i = len; |
3280af22 NIS |
2068 | if (i >= PL_origalen) { |
2069 | i = PL_origalen; | |
fb73857a | 2070 | /* don't allow system to limit $0 seen by script */ |
2071 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2072 | Copy(s, PL_origargv[0], i, char); |
2073 | s = PL_origargv[0]+i; | |
fb73857a | 2074 | *s = '\0'; |
79072805 LW |
2075 | } |
2076 | else { | |
3280af22 NIS |
2077 | Copy(s, PL_origargv[0], i, char); |
2078 | s = PL_origargv[0]+i; | |
79072805 | 2079 | *s++ = '\0'; |
3280af22 | 2080 | while (++i < PL_origalen) |
8990e307 | 2081 | *s++ = ' '; |
3280af22 NIS |
2082 | s = PL_origargv[0]+i; |
2083 | for (i = 1; i < PL_origargc; i++) | |
2084 | PL_origargv[i] = Nullch; | |
79072805 LW |
2085 | } |
2086 | break; | |
cd39f2b6 | 2087 | #endif |
a863c7d1 MB |
2088 | #ifdef USE_THREADS |
2089 | case '@': | |
38a03e6e | 2090 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2091 | break; |
2092 | #endif /* USE_THREADS */ | |
79072805 LW |
2093 | } |
2094 | return 0; | |
2095 | } | |
2096 | ||
f93b4edd MB |
2097 | #ifdef USE_THREADS |
2098 | int | |
864dbfa3 | 2099 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd MB |
2100 | { |
2101 | dTHR; | |
b900a521 JH |
2102 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2103 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2104 | PTR2UV(thr), PTR2UV(sv));) | |
f93b4edd | 2105 | if (MgOWNER(mg)) |
cea2e8a9 | 2106 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2107 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2108 | COND_DESTROY(MgCONDP(mg)); | |
2109 | return 0; | |
2110 | } | |
2111 | #endif /* USE_THREADS */ | |
2112 | ||
79072805 | 2113 | I32 |
864dbfa3 | 2114 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2115 | { |
2116 | register char **sigv; | |
2117 | ||
22c35a8c | 2118 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2119 | if (strEQ(sig,*sigv)) |
22c35a8c | 2120 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2121 | #ifdef SIGCLD |
2122 | if (strEQ(sig,"CHLD")) | |
2123 | return SIGCLD; | |
2124 | #endif | |
2125 | #ifdef SIGCHLD | |
2126 | if (strEQ(sig,"CLD")) | |
2127 | return SIGCHLD; | |
2128 | #endif | |
2129 | return 0; | |
2130 | } | |
2131 | ||
84902520 TB |
2132 | static SV* sig_sv; |
2133 | ||
ecfc5424 | 2134 | Signal_t |
cea2e8a9 | 2135 | Perl_sighandler(int sig) |
79072805 | 2136 | { |
71d280e3 GS |
2137 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2138 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ | |
2139 | #else | |
cea2e8a9 | 2140 | dTHX; |
71d280e3 | 2141 | #endif |
79072805 | 2142 | dSP; |
00d579c5 | 2143 | GV *gv = Nullgv; |
a0d0e21e | 2144 | HV *st; |
3280af22 | 2145 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2146 | CV *cv = Nullcv; |
533c011a | 2147 | OP *myop = PL_op; |
84902520 | 2148 | U32 flags = 0; |
155aba94 | 2149 | I32 o_save_i = PL_savestack_ix; |
3280af22 | 2150 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2151 | |
2152 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
2153 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ | |
2154 | #endif | |
84902520 | 2155 | |
3280af22 | 2156 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2157 | flags |= 1; |
3280af22 | 2158 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2159 | flags |= 4; |
3280af22 | 2160 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2161 | flags |= 8; |
3280af22 | 2162 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2163 | flags |= 16; |
2164 | ||
22c35a8c | 2165 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2166 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2167 | PL_sig_name[sig]); |
ff0cee69 | 2168 | |
84902520 TB |
2169 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2170 | infinity, so we fix 4 (in fact 5): */ | |
2171 | if (flags & 1) { | |
3280af22 NIS |
2172 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2173 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2174 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2175 | } |
2176 | if (flags & 4) | |
3280af22 | 2177 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2178 | if (flags & 8) { |
3280af22 NIS |
2179 | PL_retstack_ix++; |
2180 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2181 | } |
2182 | if (flags & 16) | |
3280af22 | 2183 | PL_scopestack_ix += 1; |
84902520 | 2184 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2185 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2186 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2187 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2188 | |
a0d0e21e | 2189 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2190 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2191 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2192 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2193 | : ((cv && CvGV(cv)) |
2194 | ? GvENAME(CvGV(cv)) | |
2195 | : "__ANON__"))); | |
2196 | goto cleanup; | |
79072805 LW |
2197 | } |
2198 | ||
22c35a8c GS |
2199 | if(PL_psig_name[sig]) { |
2200 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2201 | flags |= 64; |
2202 | sig_sv = sv; | |
2203 | } else { | |
ff0cee69 | 2204 | sv = sv_newmortal(); |
22c35a8c | 2205 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2206 | } |
e336de0d | 2207 | |
e788e7d3 | 2208 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2209 | PUSHMARK(SP); |
79072805 | 2210 | PUSHs(sv); |
79072805 | 2211 | PUTBACK; |
a0d0e21e | 2212 | |
864dbfa3 | 2213 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2214 | |
d3acc0f7 | 2215 | POPSTACK; |
00d579c5 | 2216 | cleanup: |
84902520 | 2217 | if (flags & 1) |
3280af22 | 2218 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2219 | if (flags & 4) |
3280af22 | 2220 | PL_markstack_ptr--; |
84902520 | 2221 | if (flags & 8) |
3280af22 | 2222 | PL_retstack_ix--; |
84902520 | 2223 | if (flags & 16) |
3280af22 | 2224 | PL_scopestack_ix -= 1; |
84902520 TB |
2225 | if (flags & 64) |
2226 | SvREFCNT_dec(sv); | |
533c011a | 2227 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2228 | |
3280af22 NIS |
2229 | PL_Sv = tSv; /* Restore global temporaries. */ |
2230 | PL_Xpv = tXpv; | |
79072805 LW |
2231 | return; |
2232 | } | |
4e35701f NIS |
2233 | |
2234 | ||
51371543 | 2235 | #ifdef PERL_OBJECT |
51371543 GS |
2236 | #include "XSUB.h" |
2237 | #endif | |
2238 | ||
2239 | static void | |
2240 | restore_magic(pTHXo_ void *p) | |
2241 | { | |
2242 | dTHR; | |
48944bdf | 2243 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2244 | SV* sv = mgs->mgs_sv; |
2245 | ||
2246 | if (!sv) | |
2247 | return; | |
2248 | ||
2249 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2250 | { | |
2251 | if (mgs->mgs_flags) | |
2252 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2253 | else | |
2254 | mg_magical(sv); | |
2255 | if (SvGMAGICAL(sv)) | |
2256 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2257 | } | |
2258 | ||
2259 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2260 | ||
2261 | /* If we're still on top of the stack, pop us off. (That condition | |
2262 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2263 | * if it's being called via leave_scope.) | |
2264 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2265 | * may leave alloc gunk on the savestack, and some code | |
2266 | * (e.g. sighandler) doesn't expect that... | |
2267 | */ | |
2268 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2269 | { | |
2270 | I32 popval = SSPOPINT; | |
c76ac1ee | 2271 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2272 | PL_savestack_ix -= 2; |
2273 | popval = SSPOPINT; | |
2274 | assert(popval == SAVEt_ALLOC); | |
2275 | popval = SSPOPINT; | |
2276 | PL_savestack_ix -= popval; | |
2277 | } | |
2278 | ||
2279 | } | |
2280 | ||
2281 | static void | |
2282 | unwind_handler_stack(pTHXo_ void *p) | |
2283 | { | |
2284 | dTHR; | |
2285 | U32 flags = *(U32*)p; | |
2286 | ||
2287 | if (flags & 1) | |
2288 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2289 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2290 | if (flags & 64) | |
2291 | SvREFCNT_dec(sig_sv); | |
2292 | } |