Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4eb8286e | 3 | * Copyright (c) 1991-1999, 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; | |
342 | register char *s; | |
343 | register I32 i; | |
344 | register REGEXP *rx; | |
345 | char *t; | |
346 | ||
8f580fb8 IZ |
347 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
348 | if (mg->mg_obj) /* @+ */ | |
349 | return rx->nparens; | |
350 | else /* @- */ | |
351 | return rx->lastparen; | |
352 | } | |
353 | ||
942e002e | 354 | return (U32)-1; |
6cef1e77 IZ |
355 | } |
356 | ||
357 | int | |
864dbfa3 | 358 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
359 | { |
360 | dTHR; | |
361 | register I32 paren; | |
cf93c79d | 362 | register I32 s; |
6cef1e77 IZ |
363 | register I32 i; |
364 | register REGEXP *rx; | |
cf93c79d | 365 | I32 t; |
6cef1e77 IZ |
366 | |
367 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
368 | paren = mg->mg_len; | |
369 | if (paren < 0) | |
370 | return 0; | |
371 | if (paren <= rx->nparens && | |
cf93c79d IZ |
372 | (s = rx->startp[paren]) != -1 && |
373 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
374 | { |
375 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 376 | i = t; |
6cef1e77 | 377 | else /* @- */ |
cf93c79d | 378 | i = s; |
6cef1e77 IZ |
379 | sv_setiv(sv,i); |
380 | } | |
381 | } | |
382 | return 0; | |
383 | } | |
384 | ||
93a17b20 | 385 | U32 |
864dbfa3 | 386 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 387 | { |
a863c7d1 | 388 | dTHR; |
93a17b20 LW |
389 | register I32 paren; |
390 | register char *s; | |
391 | register I32 i; | |
d9f97599 | 392 | register REGEXP *rx; |
748a9306 | 393 | char *t; |
93a17b20 LW |
394 | |
395 | switch (*mg->mg_ptr) { | |
396 | case '1': case '2': case '3': case '4': | |
397 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 398 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
399 | I32 s1, t1; |
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; |
71be2cbc | 408 | if (i >= 0) |
93a17b20 | 409 | return i; |
93a17b20 | 410 | } |
93a17b20 | 411 | } |
748a9306 | 412 | return 0; |
93a17b20 | 413 | case '+': |
3280af22 | 414 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 415 | paren = rx->lastparen; |
13f57bf8 CS |
416 | if (paren) |
417 | goto getparen; | |
93a17b20 | 418 | } |
748a9306 | 419 | return 0; |
93a17b20 | 420 | case '`': |
3280af22 | 421 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
422 | if (rx->startp[0] != -1) { |
423 | i = rx->startp[0]; | |
71be2cbc | 424 | if (i >= 0) |
93a17b20 | 425 | return i; |
93a17b20 | 426 | } |
93a17b20 | 427 | } |
748a9306 | 428 | return 0; |
93a17b20 | 429 | case '\'': |
3280af22 | 430 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
431 | if (rx->endp[0] != -1) { |
432 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 433 | if (i >= 0) |
5cd24f17 | 434 | return i; |
93a17b20 | 435 | } |
93a17b20 | 436 | } |
748a9306 | 437 | return 0; |
93a17b20 | 438 | case ',': |
3280af22 | 439 | return (STRLEN)PL_ofslen; |
93a17b20 | 440 | case '\\': |
3280af22 | 441 | return (STRLEN)PL_orslen; |
93a17b20 LW |
442 | } |
443 | magic_get(sv,mg); | |
2d8e6c8d GS |
444 | if (!SvPOK(sv) && SvNIOK(sv)) { |
445 | STRLEN n_a; | |
446 | sv_2pv(sv, &n_a); | |
447 | } | |
93a17b20 LW |
448 | if (SvPOK(sv)) |
449 | return SvCUR(sv); | |
450 | return 0; | |
451 | } | |
452 | ||
79072805 | 453 | int |
864dbfa3 | 454 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 455 | { |
a863c7d1 | 456 | dTHR; |
79072805 LW |
457 | register I32 paren; |
458 | register char *s; | |
459 | register I32 i; | |
d9f97599 | 460 | register REGEXP *rx; |
748a9306 | 461 | char *t; |
79072805 LW |
462 | |
463 | switch (*mg->mg_ptr) { | |
748a9306 | 464 | case '\001': /* ^A */ |
3280af22 | 465 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 466 | break; |
49460fe6 NIS |
467 | case '\003': /* ^C */ |
468 | sv_setiv(sv, (IV)PL_minus_c); | |
469 | break; | |
470 | ||
79072805 | 471 | case '\004': /* ^D */ |
3280af22 | 472 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
d056ab3f GS |
473 | #if defined(YYDEBUG) && defined(DEBUGGING) |
474 | PL_yydebug = (PL_debug & 1); | |
475 | #endif | |
79072805 | 476 | break; |
28f23441 | 477 | case '\005': /* ^E */ |
cd39f2b6 JH |
478 | #ifdef MACOS_TRADITIONAL |
479 | { | |
480 | char msg[256]; | |
481 | ||
482 | sv_setnv(sv,(double)gLastMacOSErr); | |
483 | sv_setpv(sv, gLastMacOSErr ? GetSysErrText(gLastMacOSErr, msg) : ""); | |
484 | } | |
485 | #else | |
28f23441 | 486 | #ifdef VMS |
487 | { | |
488 | # include <descrip.h> | |
489 | # include <starlet.h> | |
490 | char msg[255]; | |
491 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 492 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 493 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
494 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
495 | else | |
496 | sv_setpv(sv,""); | |
497 | } | |
498 | #else | |
88e89b8a | 499 | #ifdef OS2 |
fb73857a | 500 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 501 | sv_setnv(sv, (NV)errno); |
fb73857a | 502 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
503 | } else { | |
017f25f1 IZ |
504 | if (errno != errno_isOS2) { |
505 | int tmp = _syserrno(); | |
506 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
507 | Perl_rc = tmp; | |
508 | } | |
65202027 | 509 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 510 | sv_setpv(sv, os2error(Perl_rc)); |
511 | } | |
88e89b8a | 512 | #else |
22fae026 TM |
513 | #ifdef WIN32 |
514 | { | |
515 | DWORD dwErr = GetLastError(); | |
65202027 | 516 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 517 | if (dwErr) |
76e3520e | 518 | { |
0cb96387 | 519 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 520 | } |
22fae026 TM |
521 | else |
522 | sv_setpv(sv, ""); | |
523 | SetLastError(dwErr); | |
524 | } | |
525 | #else | |
65202027 | 526 | sv_setnv(sv, (NV)errno); |
28f23441 | 527 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
528 | #endif | |
88e89b8a | 529 | #endif |
22fae026 | 530 | #endif |
cd39f2b6 | 531 | #endif |
946ec16e | 532 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 533 | break; |
79072805 | 534 | case '\006': /* ^F */ |
3280af22 | 535 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 536 | break; |
a0d0e21e | 537 | case '\010': /* ^H */ |
3280af22 | 538 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 539 | break; |
9d116dd7 | 540 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
541 | if (PL_inplace) |
542 | sv_setpv(sv, PL_inplace); | |
79072805 | 543 | else |
3280af22 | 544 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 545 | break; |
28f23441 | 546 | case '\017': /* ^O */ |
3280af22 | 547 | sv_setpv(sv, PL_osname); |
28f23441 | 548 | break; |
79072805 | 549 | case '\020': /* ^P */ |
3280af22 | 550 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 551 | break; |
fb73857a | 552 | case '\023': /* ^S */ |
d58bf5aa MB |
553 | { |
554 | dTHR; | |
3280af22 | 555 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 556 | SvOK_off(sv); |
3280af22 | 557 | else if (PL_in_eval) |
d58bf5aa MB |
558 | sv_setiv(sv, 1); |
559 | else | |
560 | sv_setiv(sv, 0); | |
561 | } | |
fb73857a | 562 | break; |
79072805 | 563 | case '\024': /* ^T */ |
88e89b8a | 564 | #ifdef BIG_TIME |
6b88bc9c | 565 | sv_setnv(sv, PL_basetime); |
88e89b8a | 566 | #else |
3280af22 | 567 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 568 | #endif |
79072805 | 569 | break; |
d41ff1b8 GS |
570 | case '\025': /* ^U */ |
571 | sv_setiv(sv, (IV)PL_bigchar); | |
572 | break; | |
4438c4b7 JH |
573 | case '\027': /* ^W & $^Warnings*/ |
574 | if (*(mg->mg_ptr+1) == '\0') | |
575 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
576 | else if (strEQ(mg->mg_ptr, "\027arnings")) { | |
577 | if (PL_compiling.cop_warnings == WARN_NONE || | |
578 | PL_compiling.cop_warnings == WARN_STD) | |
579 | { | |
580 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
581 | } | |
582 | else if (PL_compiling.cop_warnings == WARN_ALL) { | |
583 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
584 | } | |
585 | else { | |
586 | sv_setsv(sv, PL_compiling.cop_warnings); | |
587 | } | |
588 | } | |
79072805 LW |
589 | break; |
590 | case '1': case '2': case '3': case '4': | |
591 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 592 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
593 | I32 s1, t1; |
594 | ||
a863c7d1 MB |
595 | /* |
596 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
597 | * XXX Does the new way break anything? | |
598 | */ | |
599 | paren = atoi(mg->mg_ptr); | |
79072805 | 600 | getparen: |
d9f97599 | 601 | if (paren <= rx->nparens && |
cf93c79d IZ |
602 | (s1 = rx->startp[paren]) != -1 && |
603 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 604 | { |
cf93c79d IZ |
605 | i = t1 - s1; |
606 | s = rx->subbeg + s1; | |
13f57bf8 | 607 | getrx: |
748a9306 | 608 | if (i >= 0) { |
13f57bf8 | 609 | bool was_tainted; |
3280af22 NIS |
610 | if (PL_tainting) { |
611 | was_tainted = PL_tainted; | |
612 | PL_tainted = FALSE; | |
13f57bf8 | 613 | } |
cf93c79d | 614 | sv_setpvn(sv, s, i); |
7e2040f0 GS |
615 | if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) |
616 | SvUTF8_on(sv); | |
617 | else | |
618 | SvUTF8_off(sv); | |
3280af22 NIS |
619 | if (PL_tainting) |
620 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
621 | break; |
622 | } | |
79072805 | 623 | } |
79072805 | 624 | } |
3280af22 | 625 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
626 | break; |
627 | case '+': | |
3280af22 | 628 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 629 | paren = rx->lastparen; |
a0d0e21e LW |
630 | if (paren) |
631 | goto getparen; | |
79072805 | 632 | } |
3280af22 | 633 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
634 | break; |
635 | case '`': | |
3280af22 | 636 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
637 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
638 | i = rx->startp[0]; | |
13f57bf8 | 639 | goto getrx; |
79072805 | 640 | } |
79072805 | 641 | } |
3280af22 | 642 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
643 | break; |
644 | case '\'': | |
3280af22 | 645 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
646 | if (rx->subbeg && rx->endp[0] != -1) { |
647 | s = rx->subbeg + rx->endp[0]; | |
648 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 649 | goto getrx; |
79072805 | 650 | } |
79072805 | 651 | } |
3280af22 | 652 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
653 | break; |
654 | case '.': | |
655 | #ifndef lint | |
3280af22 NIS |
656 | if (GvIO(PL_last_in_gv)) { |
657 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
658 | } |
659 | #endif | |
660 | break; | |
661 | case '?': | |
809a5acc | 662 | { |
809a5acc | 663 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 664 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
665 | LvTARGOFF(sv) = PL_statusvalue; |
666 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 667 | #endif |
809a5acc | 668 | } |
79072805 LW |
669 | break; |
670 | case '^': | |
3280af22 | 671 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
672 | if (s) |
673 | sv_setpv(sv,s); | |
674 | else { | |
3280af22 | 675 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
676 | sv_catpv(sv,"_TOP"); |
677 | } | |
678 | break; | |
679 | case '~': | |
3280af22 | 680 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 681 | if (!s) |
3280af22 | 682 | s = GvENAME(PL_defoutgv); |
79072805 LW |
683 | sv_setpv(sv,s); |
684 | break; | |
685 | #ifndef lint | |
686 | case '=': | |
3280af22 | 687 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
688 | break; |
689 | case '-': | |
3280af22 | 690 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
691 | break; |
692 | case '%': | |
3280af22 | 693 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
694 | break; |
695 | #endif | |
696 | case ':': | |
697 | break; | |
698 | case '/': | |
699 | break; | |
700 | case '[': | |
3280af22 | 701 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
702 | break; |
703 | case '|': | |
3280af22 | 704 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
705 | break; |
706 | case ',': | |
3280af22 | 707 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
708 | break; |
709 | case '\\': | |
3280af22 | 710 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
711 | break; |
712 | case '#': | |
3280af22 | 713 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
714 | break; |
715 | case '!': | |
a5f75d66 | 716 | #ifdef VMS |
65202027 | 717 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 718 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 719 | #else |
88e89b8a | 720 | { |
721 | int saveerrno = errno; | |
65202027 | 722 | sv_setnv(sv, (NV)errno); |
88e89b8a | 723 | #ifdef OS2 |
ed344e4f IZ |
724 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
725 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 726 | else |
a5f75d66 | 727 | #endif |
2304df62 | 728 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 729 | errno = saveerrno; |
730 | } | |
731 | #endif | |
946ec16e | 732 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
733 | break; |
734 | case '<': | |
3280af22 | 735 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
736 | break; |
737 | case '>': | |
3280af22 | 738 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
739 | break; |
740 | case '(': | |
3280af22 | 741 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 742 | #ifdef HAS_GETGROUPS |
785fb66b | 743 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 744 | #endif |
79072805 LW |
745 | goto add_groups; |
746 | case ')': | |
3280af22 | 747 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 748 | #ifdef HAS_GETGROUPS |
785fb66b | 749 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 750 | #endif |
79072805 | 751 | add_groups: |
79072805 | 752 | #ifdef HAS_GETGROUPS |
79072805 | 753 | { |
a0d0e21e | 754 | Groups_t gary[NGROUPS]; |
79072805 | 755 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 756 | while (--i >= 0) |
785fb66b | 757 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
758 | } |
759 | #endif | |
29355cf7 | 760 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
761 | break; |
762 | case '*': | |
763 | break; | |
cd39f2b6 | 764 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
765 | case '0': |
766 | break; | |
cd39f2b6 | 767 | #endif |
a863c7d1 MB |
768 | #ifdef USE_THREADS |
769 | case '@': | |
38a03e6e | 770 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
771 | break; |
772 | #endif /* USE_THREADS */ | |
79072805 | 773 | } |
a0d0e21e | 774 | return 0; |
79072805 LW |
775 | } |
776 | ||
777 | int | |
864dbfa3 | 778 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
779 | { |
780 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
781 | ||
782 | if (uf && uf->uf_val) | |
783 | (*uf->uf_val)(uf->uf_index, sv); | |
784 | return 0; | |
785 | } | |
786 | ||
787 | int | |
864dbfa3 | 788 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
789 | { |
790 | register char *s; | |
88e89b8a | 791 | char *ptr; |
5aabfad6 | 792 | STRLEN len, klen; |
a0d0e21e | 793 | I32 i; |
1e422769 | 794 | |
a0d0e21e | 795 | s = SvPV(sv,len); |
5aabfad6 | 796 | ptr = MgPV(mg,klen); |
88e89b8a | 797 | my_setenv(ptr, s); |
1e422769 | 798 | |
a0d0e21e LW |
799 | #ifdef DYNAMIC_ENV_FETCH |
800 | /* We just undefd an environment var. Is a replacement */ | |
801 | /* waiting in the wings? */ | |
802 | if (!len) { | |
5aabfad6 | 803 | SV **valp; |
6b88bc9c | 804 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 805 | s = SvPV(*valp, len); |
a0d0e21e LW |
806 | } |
807 | #endif | |
1e422769 | 808 | |
39e571d4 | 809 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
810 | /* And you'll never guess what the dog had */ |
811 | /* in its mouth... */ | |
3280af22 | 812 | if (PL_tainting) { |
1e422769 | 813 | MgTAINTEDDIR_off(mg); |
814 | #ifdef VMS | |
5aabfad6 | 815 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 816 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
817 | struct stat sbuf; | |
818 | int i = 0, j = 0; | |
819 | ||
820 | do { /* DCL$PATH may be a search list */ | |
821 | while (1) { /* as may dev portion of any element */ | |
822 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
823 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
824 | cando_by_name(S_IWUSR,0,elt) ) { | |
825 | MgTAINTEDDIR_on(mg); | |
826 | return 0; | |
827 | } | |
828 | } | |
829 | if ((cp = strchr(elt, ':')) != Nullch) | |
830 | *cp = '\0'; | |
831 | if (my_trnlnm(elt, eltbuf, j++)) | |
832 | elt = eltbuf; | |
833 | else | |
834 | break; | |
835 | } | |
836 | j = 0; | |
837 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
838 | } | |
839 | #endif /* VMS */ | |
5aabfad6 | 840 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 841 | char *strend = s + len; |
463ee0b2 LW |
842 | |
843 | while (s < strend) { | |
96827780 | 844 | char tmpbuf[256]; |
1e422769 | 845 | struct stat st; |
96827780 | 846 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 847 | s, strend, ':', &i); |
463ee0b2 | 848 | s++; |
96827780 MB |
849 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
850 | || *tmpbuf != '/' | |
c6ed36e1 | 851 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 852 | MgTAINTEDDIR_on(mg); |
1e422769 | 853 | return 0; |
854 | } | |
463ee0b2 | 855 | } |
79072805 LW |
856 | } |
857 | } | |
39e571d4 | 858 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 859 | |
79072805 LW |
860 | return 0; |
861 | } | |
862 | ||
863 | int | |
864dbfa3 | 864 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 865 | { |
2d8e6c8d GS |
866 | STRLEN n_a; |
867 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
868 | return 0; |
869 | } | |
870 | ||
88e89b8a | 871 | int |
864dbfa3 | 872 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 873 | { |
874 | #if defined(VMS) | |
cea2e8a9 | 875 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 876 | #else |
d58bf5aa | 877 | dTHR; |
3280af22 | 878 | if (PL_localizing) { |
fb73857a | 879 | HE* entry; |
2d8e6c8d | 880 | STRLEN n_a; |
fb73857a | 881 | magic_clear_all_env(sv,mg); |
882 | hv_iterinit((HV*)sv); | |
883 | while (entry = hv_iternext((HV*)sv)) { | |
884 | I32 keylen; | |
885 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 886 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 887 | } |
888 | } | |
889 | #endif | |
890 | return 0; | |
891 | } | |
892 | ||
893 | int | |
864dbfa3 | 894 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 895 | { |
3e3baf6d | 896 | #if defined(VMS) |
cea2e8a9 | 897 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 898 | #else |
7766f137 GS |
899 | # ifdef PERL_IMPLICIT_SYS |
900 | PerlEnv_clearenv(); | |
901 | # else | |
902 | # ifdef WIN32 | |
3e3baf6d TB |
903 | char *envv = GetEnvironmentStrings(); |
904 | char *cur = envv; | |
905 | STRLEN len; | |
906 | while (*cur) { | |
907 | char *end = strchr(cur,'='); | |
908 | if (end && end != cur) { | |
909 | *end = '\0'; | |
910 | my_setenv(cur,Nullch); | |
911 | *end = '='; | |
ac5c734f | 912 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
913 | } |
914 | else if ((len = strlen(cur))) | |
915 | cur += len+1; | |
916 | } | |
917 | FreeEnvironmentStrings(envv); | |
7766f137 GS |
918 | # else |
919 | # ifdef CYGWIN | |
2c2d71f5 JH |
920 | I32 i; |
921 | for (i = 0; environ[i]; i++) | |
d702ae42 | 922 | safesysfree(environ[i]); |
7766f137 GS |
923 | # else |
924 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
925 | I32 i; |
926 | ||
3280af22 | 927 | if (environ == PL_origenviron) |
f2517201 | 928 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
929 | else |
930 | for (i = 0; environ[i]; i++) | |
f2517201 | 931 | safesysfree(environ[i]); |
7766f137 GS |
932 | # endif /* PERL_USE_SAFE_PUTENV */ |
933 | # endif /* CYGWIN */ | |
f2517201 | 934 | |
66b1d557 HM |
935 | environ[0] = Nullch; |
936 | ||
7766f137 GS |
937 | # endif /* WIN32 */ |
938 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 939 | #endif /* VMS */ |
3e3baf6d | 940 | return 0; |
66b1d557 HM |
941 | } |
942 | ||
943 | int | |
864dbfa3 | 944 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 945 | { |
946 | I32 i; | |
2d8e6c8d | 947 | STRLEN n_a; |
88e89b8a | 948 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 949 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 950 | if (i) { |
22c35a8c GS |
951 | if(PL_psig_ptr[i]) |
952 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 953 | else { |
ff68c719 | 954 | Sighandler_t sigstate = rsignal_state(i); |
955 | ||
88e89b8a | 956 | /* cache state so we don't fetch it again */ |
ff68c719 | 957 | if(sigstate == SIG_IGN) |
88e89b8a | 958 | sv_setpv(sv,"IGNORE"); |
959 | else | |
3280af22 | 960 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 961 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 962 | SvTEMP_off(sv); |
963 | } | |
964 | } | |
965 | return 0; | |
966 | } | |
967 | int | |
864dbfa3 | 968 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 969 | { |
970 | I32 i; | |
2d8e6c8d | 971 | STRLEN n_a; |
88e89b8a | 972 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 973 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 974 | if (i) { |
22c35a8c GS |
975 | if(PL_psig_ptr[i]) { |
976 | SvREFCNT_dec(PL_psig_ptr[i]); | |
977 | PL_psig_ptr[i]=0; | |
88e89b8a | 978 | } |
22c35a8c GS |
979 | if(PL_psig_name[i]) { |
980 | SvREFCNT_dec(PL_psig_name[i]); | |
981 | PL_psig_name[i]=0; | |
88e89b8a | 982 | } |
983 | } | |
984 | return 0; | |
985 | } | |
3d37d572 | 986 | |
85e6fe83 | 987 | int |
864dbfa3 | 988 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 989 | { |
11343788 | 990 | dTHR; |
79072805 LW |
991 | register char *s; |
992 | I32 i; | |
748a9306 | 993 | SV** svp; |
e72dc28c | 994 | STRLEN len; |
a0d0e21e | 995 | |
e72dc28c | 996 | s = MgPV(mg,len); |
748a9306 LW |
997 | if (*s == '_') { |
998 | if (strEQ(s,"__DIE__")) | |
3280af22 | 999 | svp = &PL_diehook; |
748a9306 | 1000 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1001 | svp = &PL_warnhook; |
748a9306 | 1002 | else |
cea2e8a9 | 1003 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1004 | i = 0; |
4633a7c4 LW |
1005 | if (*svp) { |
1006 | SvREFCNT_dec(*svp); | |
1007 | *svp = 0; | |
1008 | } | |
748a9306 LW |
1009 | } |
1010 | else { | |
1011 | i = whichsig(s); /* ...no, a brick */ | |
1012 | if (!i) { | |
599cee73 | 1013 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
cea2e8a9 | 1014 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1015 | return 0; |
1016 | } | |
22c35a8c GS |
1017 | SvREFCNT_dec(PL_psig_name[i]); |
1018 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1019 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1020 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1021 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1022 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1023 | } |
a0d0e21e | 1024 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1025 | if (i) |
3280af22 | 1026 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1027 | else |
1028 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1029 | return 0; |
1030 | } | |
e72dc28c | 1031 | s = SvPV_force(sv,len); |
748a9306 LW |
1032 | if (strEQ(s,"IGNORE")) { |
1033 | if (i) | |
ff68c719 | 1034 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1035 | else |
1036 | *svp = 0; | |
1037 | } | |
1038 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1039 | if (i) | |
ff68c719 | 1040 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1041 | else |
1042 | *svp = 0; | |
1043 | } | |
79072805 | 1044 | else { |
5aabfad6 | 1045 | /* |
1046 | * We should warn if HINT_STRICT_REFS, but without | |
1047 | * access to a known hint bit in a known OP, we can't | |
1048 | * tell whether HINT_STRICT_REFS is in force or not. | |
1049 | */ | |
46fc3d4c | 1050 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1051 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1052 | if (i) |
3280af22 | 1053 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1054 | else |
1055 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1056 | } |
1057 | return 0; | |
1058 | } | |
1059 | ||
1060 | int | |
864dbfa3 | 1061 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1062 | { |
3280af22 | 1063 | PL_sub_generation++; |
463ee0b2 LW |
1064 | return 0; |
1065 | } | |
1066 | ||
1067 | int | |
864dbfa3 | 1068 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1069 | { |
a0d0e21e | 1070 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1071 | PL_amagic_generation++; |
463ee0b2 | 1072 | |
a0d0e21e LW |
1073 | return 0; |
1074 | } | |
463ee0b2 | 1075 | |
946ec16e | 1076 | int |
864dbfa3 | 1077 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1078 | { |
1079 | HV *hv = (HV*)LvTARG(sv); | |
1080 | HE *entry; | |
1081 | I32 i = 0; | |
1082 | ||
1083 | if (hv) { | |
1084 | (void) hv_iterinit(hv); | |
33c27489 | 1085 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1086 | i = HvKEYS(hv); |
1087 | else { | |
1088 | /*SUPPRESS 560*/ | |
1089 | while (entry = hv_iternext(hv)) { | |
1090 | i++; | |
1091 | } | |
1092 | } | |
1093 | } | |
1094 | ||
1095 | sv_setiv(sv, (IV)i); | |
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | int | |
864dbfa3 | 1100 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1101 | { |
1102 | if (LvTARG(sv)) { | |
1103 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1104 | } |
1105 | return 0; | |
93965878 | 1106 | } |
946ec16e | 1107 | |
e336de0d | 1108 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1109 | STATIC int |
cea2e8a9 | 1110 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1111 | { |
1112 | dSP; | |
463ee0b2 | 1113 | |
924508f0 GS |
1114 | PUSHMARK(SP); |
1115 | EXTEND(SP, n); | |
33c27489 | 1116 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1117 | if (n > 1) { |
1118 | if (mg->mg_ptr) { | |
565764a8 | 1119 | if (mg->mg_len >= 0) |
79cb57f6 | 1120 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1121 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1122 | PUSHs((SV*)mg->mg_ptr); |
1123 | } | |
1124 | else if (mg->mg_type == 'p') { | |
565764a8 | 1125 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1126 | } |
1127 | } | |
1128 | if (n > 2) { | |
1129 | PUSHs(val); | |
88e89b8a | 1130 | } |
463ee0b2 LW |
1131 | PUTBACK; |
1132 | ||
864dbfa3 | 1133 | return call_method(meth, flags); |
946ec16e | 1134 | } |
1135 | ||
76e3520e | 1136 | STATIC int |
cea2e8a9 | 1137 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1138 | { |
1139 | dSP; | |
463ee0b2 | 1140 | |
a0d0e21e LW |
1141 | ENTER; |
1142 | SAVETMPS; | |
e788e7d3 | 1143 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1144 | |
33c27489 | 1145 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1146 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1147 | } |
463ee0b2 | 1148 | |
d3acc0f7 | 1149 | POPSTACK; |
a0d0e21e LW |
1150 | FREETMPS; |
1151 | LEAVE; | |
1152 | return 0; | |
1153 | } | |
463ee0b2 | 1154 | |
a0d0e21e | 1155 | int |
864dbfa3 | 1156 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1157 | { |
1158 | magic_methpack(sv,mg,"FETCH"); | |
1159 | if (mg->mg_ptr) | |
1160 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1161 | return 0; |
1162 | } | |
1163 | ||
1164 | int | |
864dbfa3 | 1165 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1166 | { |
1167 | dSP; | |
a60c0954 | 1168 | ENTER; |
e788e7d3 | 1169 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1170 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1171 | POPSTACK; |
a60c0954 | 1172 | LEAVE; |
463ee0b2 LW |
1173 | return 0; |
1174 | } | |
1175 | ||
1176 | int | |
864dbfa3 | 1177 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1178 | { |
a0d0e21e LW |
1179 | return magic_methpack(sv,mg,"DELETE"); |
1180 | } | |
463ee0b2 | 1181 | |
93965878 NIS |
1182 | |
1183 | U32 | |
864dbfa3 | 1184 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 | 1185 | { |
e336de0d | 1186 | dSP; |
93965878 NIS |
1187 | U32 retval = 0; |
1188 | ||
1189 | ENTER; | |
1190 | SAVETMPS; | |
e788e7d3 | 1191 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1192 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1193 | sv = *PL_stack_sp--; |
a60c0954 | 1194 | retval = (U32) SvIV(sv)-1; |
93965878 | 1195 | } |
d3acc0f7 | 1196 | POPSTACK; |
93965878 NIS |
1197 | FREETMPS; |
1198 | LEAVE; | |
1199 | return retval; | |
1200 | } | |
1201 | ||
cea2e8a9 GS |
1202 | int |
1203 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1204 | { |
1205 | dSP; | |
463ee0b2 | 1206 | |
e336de0d | 1207 | ENTER; |
e788e7d3 | 1208 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1209 | PUSHMARK(SP); |
33c27489 | 1210 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1211 | PUTBACK; |
864dbfa3 | 1212 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1213 | POPSTACK; |
a60c0954 | 1214 | LEAVE; |
463ee0b2 LW |
1215 | return 0; |
1216 | } | |
1217 | ||
1218 | int | |
864dbfa3 | 1219 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1220 | { |
463ee0b2 | 1221 | dSP; |
dff6d3cd | 1222 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1223 | |
1224 | ENTER; | |
a0d0e21e | 1225 | SAVETMPS; |
e788e7d3 | 1226 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1227 | PUSHMARK(SP); |
1228 | EXTEND(SP, 2); | |
33c27489 | 1229 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1230 | if (SvOK(key)) |
1231 | PUSHs(key); | |
1232 | PUTBACK; | |
1233 | ||
864dbfa3 | 1234 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1235 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1236 | |
d3acc0f7 | 1237 | POPSTACK; |
a0d0e21e LW |
1238 | FREETMPS; |
1239 | LEAVE; | |
79072805 LW |
1240 | return 0; |
1241 | } | |
1242 | ||
1243 | int | |
864dbfa3 | 1244 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1245 | { |
1246 | return magic_methpack(sv,mg,"EXISTS"); | |
1247 | } | |
1248 | ||
1249 | int | |
864dbfa3 | 1250 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1251 | { |
11343788 | 1252 | dTHR; |
79072805 LW |
1253 | OP *o; |
1254 | I32 i; | |
1255 | GV* gv; | |
1256 | SV** svp; | |
2d8e6c8d | 1257 | STRLEN n_a; |
79072805 | 1258 | |
3280af22 | 1259 | gv = PL_DBline; |
79072805 | 1260 | i = SvTRUE(sv); |
188ea221 | 1261 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1262 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1263 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1264 | o->op_private = i; |
0453d815 PM |
1265 | else if (ckWARN_d(WARN_INTERNAL)) |
1266 | Perl_warner(aTHX_ WARN_INTERNAL, "Can't break at that line\n"); | |
79072805 LW |
1267 | return 0; |
1268 | } | |
1269 | ||
1270 | int | |
864dbfa3 | 1271 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1272 | { |
0f15f207 | 1273 | dTHR; |
3280af22 | 1274 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1275 | return 0; |
1276 | } | |
1277 | ||
1278 | int | |
864dbfa3 | 1279 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1280 | { |
0f15f207 | 1281 | dTHR; |
3280af22 | 1282 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1283 | return 0; |
1284 | } | |
1285 | ||
1286 | int | |
864dbfa3 | 1287 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1288 | { |
1289 | SV* lsv = LvTARG(sv); | |
1290 | ||
1291 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1292 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1293 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1294 | dTHR; |
a0ed51b3 | 1295 | I32 i = mg->mg_len; |
7e2040f0 | 1296 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1297 | sv_pos_b2u(lsv, &i); |
1298 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1299 | return 0; |
1300 | } | |
1301 | } | |
1302 | (void)SvOK_off(sv); | |
1303 | return 0; | |
1304 | } | |
1305 | ||
1306 | int | |
864dbfa3 | 1307 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1308 | { |
1309 | SV* lsv = LvTARG(sv); | |
1310 | SSize_t pos; | |
1311 | STRLEN len; | |
c00206c8 | 1312 | STRLEN ulen = 0; |
c485e607 | 1313 | dTHR; |
a0d0e21e LW |
1314 | |
1315 | mg = 0; | |
1316 | ||
1317 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1318 | mg = mg_find(lsv, 'g'); | |
1319 | if (!mg) { | |
1320 | if (!SvOK(sv)) | |
1321 | return 0; | |
1322 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1323 | mg = mg_find(lsv, 'g'); | |
1324 | } | |
1325 | else if (!SvOK(sv)) { | |
565764a8 | 1326 | mg->mg_len = -1; |
a0d0e21e LW |
1327 | return 0; |
1328 | } | |
1329 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1330 | ||
c485e607 | 1331 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1332 | |
7e2040f0 | 1333 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1334 | ulen = sv_len_utf8(lsv); |
1335 | if (ulen) | |
1336 | len = ulen; | |
a0ed51b3 LW |
1337 | } |
1338 | ||
a0d0e21e LW |
1339 | if (pos < 0) { |
1340 | pos += len; | |
1341 | if (pos < 0) | |
1342 | pos = 0; | |
1343 | } | |
1344 | else if (pos > len) | |
1345 | pos = len; | |
a0ed51b3 LW |
1346 | |
1347 | if (ulen) { | |
1348 | I32 p = pos; | |
1349 | sv_pos_u2b(lsv, &p, 0); | |
1350 | pos = p; | |
1351 | } | |
1352 | ||
565764a8 | 1353 | mg->mg_len = pos; |
71be2cbc | 1354 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1355 | |
79072805 LW |
1356 | return 0; |
1357 | } | |
1358 | ||
1359 | int | |
864dbfa3 | 1360 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1361 | { |
8646b087 | 1362 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1363 | SvFAKE_off(sv); | |
946ec16e | 1364 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1365 | SvFAKE_on(sv); |
1366 | } | |
1367 | else | |
946ec16e | 1368 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1369 | return 0; |
1370 | } | |
1371 | ||
1372 | int | |
864dbfa3 | 1373 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1374 | { |
1375 | register char *s; | |
1376 | GV* gv; | |
2d8e6c8d | 1377 | STRLEN n_a; |
79072805 LW |
1378 | |
1379 | if (!SvOK(sv)) | |
1380 | return 0; | |
2d8e6c8d | 1381 | s = SvPV(sv, n_a); |
79072805 LW |
1382 | if (*s == '*' && s[1]) |
1383 | s++; | |
85e6fe83 | 1384 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1385 | if (sv == (SV*)gv) |
1386 | return 0; | |
1387 | if (GvGP(sv)) | |
88e89b8a | 1388 | gp_free((GV*)sv); |
79072805 | 1389 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1390 | return 0; |
1391 | } | |
1392 | ||
1393 | int | |
864dbfa3 | 1394 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1395 | { |
1396 | STRLEN len; | |
1397 | SV *lsv = LvTARG(sv); | |
1398 | char *tmps = SvPV(lsv,len); | |
1399 | I32 offs = LvTARGOFF(sv); | |
1400 | I32 rem = LvTARGLEN(sv); | |
1401 | ||
1402 | if (offs > len) | |
1403 | offs = len; | |
1404 | if (rem + offs > len) | |
1405 | rem = len - offs; | |
1406 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1407 | return 0; | |
1408 | } | |
1409 | ||
1410 | int | |
864dbfa3 | 1411 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1412 | { |
8990e307 LW |
1413 | STRLEN len; |
1414 | char *tmps = SvPV(sv,len); | |
1415 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1416 | return 0; |
1417 | } | |
1418 | ||
1419 | int | |
864dbfa3 | 1420 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1421 | { |
a863c7d1 | 1422 | dTHR; |
565764a8 DL |
1423 | TAINT_IF((mg->mg_len & 1) || |
1424 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1425 | return 0; |
1426 | } | |
1427 | ||
1428 | int | |
864dbfa3 | 1429 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1430 | { |
11343788 | 1431 | dTHR; |
3280af22 NIS |
1432 | if (PL_localizing) { |
1433 | if (PL_localizing == 1) | |
565764a8 | 1434 | mg->mg_len <<= 1; |
748a9306 | 1435 | else |
565764a8 | 1436 | mg->mg_len >>= 1; |
a0d0e21e | 1437 | } |
3280af22 | 1438 | else if (PL_tainted) |
565764a8 | 1439 | mg->mg_len |= 1; |
748a9306 | 1440 | else |
565764a8 | 1441 | mg->mg_len &= ~1; |
463ee0b2 LW |
1442 | return 0; |
1443 | } | |
1444 | ||
1445 | int | |
864dbfa3 | 1446 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1447 | { |
1448 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1449 | |
1450 | if (!lsv) { | |
1451 | SvOK_off(sv); | |
1452 | return 0; | |
1453 | } | |
6ff81951 | 1454 | |
81e118e0 | 1455 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1456 | return 0; |
1457 | } | |
1458 | ||
1459 | int | |
864dbfa3 | 1460 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1461 | { |
1462 | do_vecset(sv); /* XXX slurp this routine */ | |
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | int | |
864dbfa3 | 1467 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1468 | { |
71be2cbc | 1469 | SV *targ = Nullsv; |
5f05dabc | 1470 | if (LvTARGLEN(sv)) { |
68dc0745 | 1471 | if (mg->mg_obj) { |
74e13ce4 GS |
1472 | SV *ahv = LvTARG(sv); |
1473 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1474 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1475 | if (he) | |
1476 | targ = HeVAL(he); | |
1477 | } | |
1478 | else { | |
1479 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1480 | if (svp) | |
1481 | targ = *svp; | |
1482 | } | |
68dc0745 | 1483 | } |
1484 | else { | |
3c78fafa | 1485 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1486 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1487 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1488 | } | |
3280af22 | 1489 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1490 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1491 | /* somebody else defined it for us */ |
1492 | SvREFCNT_dec(LvTARG(sv)); | |
1493 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1494 | LvTARGLEN(sv) = 0; | |
1495 | SvREFCNT_dec(mg->mg_obj); | |
1496 | mg->mg_obj = Nullsv; | |
1497 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1498 | } | |
5f05dabc | 1499 | } |
71be2cbc | 1500 | else |
1501 | targ = LvTARG(sv); | |
3280af22 | 1502 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1503 | return 0; |
1504 | } | |
1505 | ||
1506 | int | |
864dbfa3 | 1507 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1508 | { |
1509 | if (LvTARGLEN(sv)) | |
68dc0745 | 1510 | vivify_defelem(sv); |
1511 | if (LvTARG(sv)) { | |
5f05dabc | 1512 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1513 | SvSETMAGIC(LvTARG(sv)); |
1514 | } | |
5f05dabc | 1515 | return 0; |
1516 | } | |
1517 | ||
71be2cbc | 1518 | void |
864dbfa3 | 1519 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1520 | { |
e858de61 | 1521 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1522 | MAGIC *mg; |
1523 | SV *value = Nullsv; | |
71be2cbc | 1524 | |
68dc0745 | 1525 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1526 | return; |
68dc0745 | 1527 | if (mg->mg_obj) { |
74e13ce4 | 1528 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1529 | STRLEN n_a; |
74e13ce4 | 1530 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1531 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1532 | if (he) |
1533 | value = HeVAL(he); | |
1534 | } | |
1535 | else { | |
af7f9c15 | 1536 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1537 | if (svp) |
1538 | value = *svp; | |
1539 | } | |
3280af22 | 1540 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1541 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1542 | } |
68dc0745 | 1543 | else { |
1544 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1545 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1546 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1547 | else { | |
1548 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1549 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1550 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1551 | } |
1552 | } | |
3e3baf6d | 1553 | (void)SvREFCNT_inc(value); |
68dc0745 | 1554 | SvREFCNT_dec(LvTARG(sv)); |
1555 | LvTARG(sv) = value; | |
71be2cbc | 1556 | LvTARGLEN(sv) = 0; |
68dc0745 | 1557 | SvREFCNT_dec(mg->mg_obj); |
1558 | mg->mg_obj = Nullsv; | |
1559 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1560 | } |
1561 | ||
1562 | int | |
864dbfa3 | 1563 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1564 | { |
1565 | AV *av = (AV*)mg->mg_obj; | |
1566 | SV **svp = AvARRAY(av); | |
1567 | I32 i = AvFILLp(av); | |
1568 | while (i >= 0) { | |
1569 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1570 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1571 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1572 | /* XXX Should we check that it hasn't changed? */ |
1573 | SvRV(svp[i]) = 0; | |
1574 | SvOK_off(svp[i]); | |
1575 | SvWEAKREF_off(svp[i]); | |
1576 | svp[i] = &PL_sv_undef; | |
1577 | } | |
1578 | i--; | |
1579 | } | |
1580 | return 0; | |
1581 | } | |
1582 | ||
1583 | int | |
864dbfa3 | 1584 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1585 | { |
565764a8 | 1586 | mg->mg_len = -1; |
c6496cc7 | 1587 | SvSCREAM_off(sv); |
93a17b20 LW |
1588 | return 0; |
1589 | } | |
1590 | ||
1591 | int | |
864dbfa3 | 1592 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1593 | { |
463ee0b2 | 1594 | sv_unmagic(sv, 'B'); |
79072805 LW |
1595 | SvVALID_off(sv); |
1596 | return 0; | |
1597 | } | |
1598 | ||
1599 | int | |
864dbfa3 | 1600 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1601 | { |
1602 | sv_unmagic(sv, 'f'); | |
1603 | SvCOMPILED_off(sv); | |
1604 | return 0; | |
1605 | } | |
1606 | ||
1607 | int | |
864dbfa3 | 1608 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1609 | { |
1610 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1611 | ||
1612 | if (uf && uf->uf_set) | |
1613 | (*uf->uf_set)(uf->uf_index, sv); | |
1614 | return 0; | |
1615 | } | |
1616 | ||
c277df42 | 1617 | int |
864dbfa3 | 1618 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1619 | { |
1620 | regexp *re = (regexp *)mg->mg_obj; | |
1621 | ReREFCNT_dec(re); | |
1622 | return 0; | |
1623 | } | |
1624 | ||
7a4c00b4 | 1625 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1626 | int |
864dbfa3 | 1627 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1628 | { |
1629 | /* | |
838b5b74 | 1630 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1631 | * and vanished with a faint plop. |
1632 | */ | |
7a4c00b4 | 1633 | if (mg->mg_ptr) { |
1634 | Safefree(mg->mg_ptr); | |
1635 | mg->mg_ptr = NULL; | |
565764a8 | 1636 | mg->mg_len = -1; |
7a4c00b4 | 1637 | } |
bbce6d69 | 1638 | return 0; |
1639 | } | |
7a4c00b4 | 1640 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1641 | |
1642 | int | |
864dbfa3 | 1643 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1644 | { |
11343788 | 1645 | dTHR; |
79072805 LW |
1646 | register char *s; |
1647 | I32 i; | |
8990e307 | 1648 | STRLEN len; |
79072805 | 1649 | switch (*mg->mg_ptr) { |
748a9306 | 1650 | case '\001': /* ^A */ |
3280af22 | 1651 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1652 | break; |
49460fe6 NIS |
1653 | case '\003': /* ^C */ |
1654 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1655 | break; | |
1656 | ||
79072805 | 1657 | case '\004': /* ^D */ |
3280af22 | 1658 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1659 | DEBUG_x(dump_all()); |
1660 | break; | |
28f23441 | 1661 | case '\005': /* ^E */ |
cd39f2b6 JH |
1662 | #ifdef MACOS_TRADITIONAL |
1663 | gLastMacOSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
28f23441 | 1664 | #else |
cd39f2b6 JH |
1665 | # ifdef VMS |
1666 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1667 | # else |
cd39f2b6 JH |
1668 | # ifdef WIN32 |
1669 | SetLastError( SvIV(sv) ); | |
1670 | # else | |
1671 | # ifndef OS2 | |
f86702cc | 1672 | /* will anyone ever use this? */ |
1673 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1674 | # endif |
048c1ddf IZ |
1675 | # endif |
1676 | # endif | |
22fae026 | 1677 | #endif |
28f23441 | 1678 | break; |
79072805 | 1679 | case '\006': /* ^F */ |
3280af22 | 1680 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1681 | break; |
a0d0e21e | 1682 | case '\010': /* ^H */ |
3280af22 | 1683 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1684 | break; |
9d116dd7 | 1685 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1686 | if (PL_inplace) |
1687 | Safefree(PL_inplace); | |
79072805 | 1688 | if (SvOK(sv)) |
2d8e6c8d | 1689 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1690 | else |
3280af22 | 1691 | PL_inplace = Nullch; |
79072805 | 1692 | break; |
28f23441 | 1693 | case '\017': /* ^O */ |
3280af22 NIS |
1694 | if (PL_osname) |
1695 | Safefree(PL_osname); | |
28f23441 | 1696 | if (SvOK(sv)) |
2d8e6c8d | 1697 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1698 | else |
3280af22 | 1699 | PL_osname = Nullch; |
28f23441 | 1700 | break; |
79072805 | 1701 | case '\020': /* ^P */ |
3280af22 | 1702 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1703 | if (PL_perldb && !PL_DBsingle) |
1704 | init_debugger(); | |
79072805 LW |
1705 | break; |
1706 | case '\024': /* ^T */ | |
88e89b8a | 1707 | #ifdef BIG_TIME |
6b88bc9c | 1708 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1709 | #else |
3280af22 | 1710 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1711 | #endif |
79072805 | 1712 | break; |
d41ff1b8 GS |
1713 | case '\025': /* ^U */ |
1714 | PL_bigchar = SvTRUE(sv); | |
1715 | break; | |
4438c4b7 JH |
1716 | case '\027': /* ^W & $^Warnings */ |
1717 | if (*(mg->mg_ptr+1) == '\0') { | |
1718 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1719 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1720 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) | |
0453d815 | 1721 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1722 | } |
599cee73 | 1723 | } |
4438c4b7 JH |
1724 | else if (strEQ(mg->mg_ptr, "\027arnings")) { |
1725 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1726 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) { | |
1727 | PL_compiling.cop_warnings = WARN_ALL; | |
1728 | PL_dowarn |= G_WARN_ONCE ; | |
1729 | } | |
1730 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) | |
1731 | PL_compiling.cop_warnings = WARN_NONE; | |
1732 | else { | |
1733 | if (specialWARN(PL_compiling.cop_warnings)) | |
1734 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1735 | else | |
1736 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1737 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1738 | PL_dowarn |= G_WARN_ONCE ; | |
1739 | } | |
1740 | } | |
971a9dd3 | 1741 | } |
79072805 LW |
1742 | break; |
1743 | case '.': | |
3280af22 NIS |
1744 | if (PL_localizing) { |
1745 | if (PL_localizing == 1) | |
7766f137 | 1746 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1747 | } |
3280af22 NIS |
1748 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1749 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1750 | break; |
1751 | case '^': | |
3280af22 | 1752 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1753 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1754 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1755 | break; |
1756 | case '~': | |
3280af22 | 1757 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1758 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1759 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1760 | break; |
1761 | case '=': | |
3280af22 | 1762 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1763 | break; |
1764 | case '-': | |
3280af22 NIS |
1765 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1766 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1767 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1768 | break; |
1769 | case '%': | |
3280af22 | 1770 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1771 | break; |
1772 | case '|': | |
4b65379b | 1773 | { |
3280af22 | 1774 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1775 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1776 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1777 | else { | |
1778 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1779 | PerlIO *ofp = IoOFP(io); | |
1780 | if (ofp) | |
1781 | (void)PerlIO_flush(ofp); | |
1782 | IoFLAGS(io) |= IOf_FLUSH; | |
1783 | } | |
1784 | } | |
79072805 LW |
1785 | } |
1786 | break; | |
1787 | case '*': | |
463ee0b2 | 1788 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1789 | PL_multiline = (i != 0); |
79072805 LW |
1790 | break; |
1791 | case '/': | |
3280af22 NIS |
1792 | SvREFCNT_dec(PL_nrs); |
1793 | PL_nrs = newSVsv(sv); | |
1794 | SvREFCNT_dec(PL_rs); | |
1795 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1796 | break; |
1797 | case '\\': | |
3280af22 NIS |
1798 | if (PL_ors) |
1799 | Safefree(PL_ors); | |
009c130f GS |
1800 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
1801 | s = SvPV(sv,PL_orslen); | |
1802 | PL_ors = savepvn(s,PL_orslen); | |
1803 | } | |
e3c19b7b | 1804 | else { |
3280af22 NIS |
1805 | PL_ors = Nullch; |
1806 | PL_orslen = 0; | |
e3c19b7b | 1807 | } |
79072805 LW |
1808 | break; |
1809 | case ',': | |
3280af22 NIS |
1810 | if (PL_ofs) |
1811 | Safefree(PL_ofs); | |
1812 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1813 | break; |
1814 | case '#': | |
3280af22 NIS |
1815 | if (PL_ofmt) |
1816 | Safefree(PL_ofmt); | |
2d8e6c8d | 1817 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1818 | break; |
1819 | case '[': | |
3280af22 | 1820 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1821 | break; |
1822 | case '?': | |
ff0cee69 | 1823 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1824 | if (PL_localizing == 2) { |
1825 | PL_statusvalue = LvTARGOFF(sv); | |
1826 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1827 | } |
1828 | else | |
1829 | #endif | |
1830 | #ifdef VMSISH_STATUS | |
1831 | if (VMSISH_STATUS) | |
1832 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1833 | else | |
1834 | #endif | |
1835 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1836 | break; |
1837 | case '!': | |
78987ded | 1838 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1839 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1840 | break; |
1841 | case '<': | |
3280af22 NIS |
1842 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1843 | if (PL_delaymagic) { | |
1844 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1845 | break; /* don't do magic till later */ |
1846 | } | |
1847 | #ifdef HAS_SETRUID | |
b28d0864 | 1848 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1849 | #else |
1850 | #ifdef HAS_SETREUID | |
3280af22 | 1851 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1852 | #else |
85e6fe83 | 1853 | #ifdef HAS_SETRESUID |
b28d0864 | 1854 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1855 | #else |
b28d0864 NIS |
1856 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1857 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1858 | else { |
d8eceb89 | 1859 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1860 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1861 | } |
79072805 LW |
1862 | #endif |
1863 | #endif | |
85e6fe83 | 1864 | #endif |
d8eceb89 | 1865 | PL_uid = PerlProc_getuid(); |
3280af22 | 1866 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1867 | break; |
1868 | case '>': | |
3280af22 NIS |
1869 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1870 | if (PL_delaymagic) { | |
1871 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1872 | break; /* don't do magic till later */ |
1873 | } | |
1874 | #ifdef HAS_SETEUID | |
3280af22 | 1875 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1876 | #else |
1877 | #ifdef HAS_SETREUID | |
b28d0864 | 1878 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1879 | #else |
1880 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1881 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1882 | #else |
b28d0864 NIS |
1883 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1884 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1885 | else { |
e8ee3774 | 1886 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1887 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1888 | } |
79072805 LW |
1889 | #endif |
1890 | #endif | |
85e6fe83 | 1891 | #endif |
d8eceb89 | 1892 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1893 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1894 | break; |
1895 | case '(': | |
3280af22 NIS |
1896 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1897 | if (PL_delaymagic) { | |
1898 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1899 | break; /* don't do magic till later */ |
1900 | } | |
1901 | #ifdef HAS_SETRGID | |
b28d0864 | 1902 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1903 | #else |
1904 | #ifdef HAS_SETREGID | |
3280af22 | 1905 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1906 | #else |
1907 | #ifdef HAS_SETRESGID | |
b28d0864 | 1908 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1909 | #else |
b28d0864 NIS |
1910 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1911 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1912 | else { |
d8eceb89 | 1913 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 1914 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1915 | } |
79072805 LW |
1916 | #endif |
1917 | #endif | |
85e6fe83 | 1918 | #endif |
d8eceb89 | 1919 | PL_gid = PerlProc_getgid(); |
3280af22 | 1920 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1921 | break; |
1922 | case ')': | |
5cd24f17 | 1923 | #ifdef HAS_SETGROUPS |
1924 | { | |
2d8e6c8d | 1925 | char *p = SvPV(sv, len); |
5cd24f17 | 1926 | Groups_t gary[NGROUPS]; |
1927 | ||
5cd24f17 | 1928 | while (isSPACE(*p)) |
1929 | ++p; | |
2d4389e4 | 1930 | PL_egid = Atol(p); |
5cd24f17 | 1931 | for (i = 0; i < NGROUPS; ++i) { |
1932 | while (*p && !isSPACE(*p)) | |
1933 | ++p; | |
1934 | while (isSPACE(*p)) | |
1935 | ++p; | |
1936 | if (!*p) | |
1937 | break; | |
2d4389e4 | 1938 | gary[i] = Atol(p); |
5cd24f17 | 1939 | } |
8cc95fdb | 1940 | if (i) |
1941 | (void)setgroups(i, gary); | |
5cd24f17 | 1942 | } |
1943 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1944 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1945 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1946 | if (PL_delaymagic) { |
1947 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1948 | break; /* don't do magic till later */ |
1949 | } | |
1950 | #ifdef HAS_SETEGID | |
3280af22 | 1951 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1952 | #else |
1953 | #ifdef HAS_SETREGID | |
b28d0864 | 1954 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1955 | #else |
1956 | #ifdef HAS_SETRESGID | |
b28d0864 | 1957 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1958 | #else |
b28d0864 NIS |
1959 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1960 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1961 | else { |
d8eceb89 | 1962 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 1963 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 1964 | } |
79072805 LW |
1965 | #endif |
1966 | #endif | |
85e6fe83 | 1967 | #endif |
d8eceb89 | 1968 | PL_egid = PerlProc_getegid(); |
3280af22 | 1969 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1970 | break; |
1971 | case ':': | |
2d8e6c8d | 1972 | PL_chopset = SvPV_force(sv,len); |
79072805 | 1973 | break; |
cd39f2b6 | 1974 | #ifndef MACOS_TRADITIONAL |
79072805 | 1975 | case '0': |
3280af22 NIS |
1976 | if (!PL_origalen) { |
1977 | s = PL_origargv[0]; | |
79072805 LW |
1978 | s += strlen(s); |
1979 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1980 | for (i = 1; i < PL_origargc; i++) { |
1981 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1982 | #ifdef OS2 |
6b88bc9c | 1983 | || PL_origargv[i] == s + 2 |
fb73857a | 1984 | #endif |
1985 | ) | |
379c4362 GS |
1986 | { |
1987 | ++s; | |
1988 | s += strlen(s); /* this one is ok too */ | |
1989 | } | |
fb73857a | 1990 | else |
1991 | break; | |
79072805 | 1992 | } |
bbce6d69 | 1993 | /* can grab env area too? */ |
3280af22 | 1994 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 1995 | #ifdef OS2 |
6b88bc9c | 1996 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 1997 | #endif |
1998 | )) { | |
66b1d557 | 1999 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2000 | /* force copy of environment */ |
3280af22 | 2001 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2002 | if (PL_origenviron[i] == s + 1) { |
2003 | ++s; | |
2004 | s += strlen(s); | |
2005 | } | |
fb73857a | 2006 | else |
2007 | break; | |
79072805 | 2008 | } |
3280af22 | 2009 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2010 | } |
a0d0e21e | 2011 | s = SvPV_force(sv,len); |
8990e307 | 2012 | i = len; |
3280af22 NIS |
2013 | if (i >= PL_origalen) { |
2014 | i = PL_origalen; | |
fb73857a | 2015 | /* don't allow system to limit $0 seen by script */ |
2016 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2017 | Copy(s, PL_origargv[0], i, char); |
2018 | s = PL_origargv[0]+i; | |
fb73857a | 2019 | *s = '\0'; |
79072805 LW |
2020 | } |
2021 | else { | |
3280af22 NIS |
2022 | Copy(s, PL_origargv[0], i, char); |
2023 | s = PL_origargv[0]+i; | |
79072805 | 2024 | *s++ = '\0'; |
3280af22 | 2025 | while (++i < PL_origalen) |
8990e307 | 2026 | *s++ = ' '; |
3280af22 NIS |
2027 | s = PL_origargv[0]+i; |
2028 | for (i = 1; i < PL_origargc; i++) | |
2029 | PL_origargv[i] = Nullch; | |
79072805 LW |
2030 | } |
2031 | break; | |
cd39f2b6 | 2032 | #endif |
a863c7d1 MB |
2033 | #ifdef USE_THREADS |
2034 | case '@': | |
38a03e6e | 2035 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2036 | break; |
2037 | #endif /* USE_THREADS */ | |
79072805 LW |
2038 | } |
2039 | return 0; | |
2040 | } | |
2041 | ||
f93b4edd MB |
2042 | #ifdef USE_THREADS |
2043 | int | |
864dbfa3 | 2044 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd MB |
2045 | { |
2046 | dTHR; | |
b900a521 JH |
2047 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2048 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2049 | PTR2UV(thr), PTR2UV(sv));) | |
f93b4edd | 2050 | if (MgOWNER(mg)) |
cea2e8a9 | 2051 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2052 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2053 | COND_DESTROY(MgCONDP(mg)); | |
2054 | return 0; | |
2055 | } | |
2056 | #endif /* USE_THREADS */ | |
2057 | ||
79072805 | 2058 | I32 |
864dbfa3 | 2059 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2060 | { |
2061 | register char **sigv; | |
2062 | ||
22c35a8c | 2063 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2064 | if (strEQ(sig,*sigv)) |
22c35a8c | 2065 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2066 | #ifdef SIGCLD |
2067 | if (strEQ(sig,"CHLD")) | |
2068 | return SIGCLD; | |
2069 | #endif | |
2070 | #ifdef SIGCHLD | |
2071 | if (strEQ(sig,"CLD")) | |
2072 | return SIGCHLD; | |
2073 | #endif | |
2074 | return 0; | |
2075 | } | |
2076 | ||
84902520 TB |
2077 | static SV* sig_sv; |
2078 | ||
ecfc5424 | 2079 | Signal_t |
cea2e8a9 | 2080 | Perl_sighandler(int sig) |
79072805 | 2081 | { |
cea2e8a9 | 2082 | dTHX; |
79072805 | 2083 | dSP; |
00d579c5 | 2084 | GV *gv = Nullgv; |
a0d0e21e | 2085 | HV *st; |
3280af22 | 2086 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2087 | CV *cv = Nullcv; |
533c011a | 2088 | OP *myop = PL_op; |
84902520 | 2089 | U32 flags = 0; |
3280af22 NIS |
2090 | I32 o_save_i = PL_savestack_ix, type; |
2091 | XPV *tXpv = PL_Xpv; | |
84902520 | 2092 | |
3280af22 | 2093 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2094 | flags |= 1; |
3280af22 | 2095 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2096 | flags |= 4; |
3280af22 | 2097 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2098 | flags |= 8; |
3280af22 | 2099 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2100 | flags |= 16; |
2101 | ||
22c35a8c | 2102 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2103 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2104 | PL_sig_name[sig]); |
ff0cee69 | 2105 | |
84902520 TB |
2106 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2107 | infinity, so we fix 4 (in fact 5): */ | |
2108 | if (flags & 1) { | |
3280af22 NIS |
2109 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2110 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2111 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2112 | } |
2113 | if (flags & 4) | |
3280af22 | 2114 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2115 | if (flags & 8) { |
3280af22 NIS |
2116 | PL_retstack_ix++; |
2117 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2118 | } |
2119 | if (flags & 16) | |
3280af22 | 2120 | PL_scopestack_ix += 1; |
84902520 | 2121 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2122 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2123 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2124 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2125 | |
a0d0e21e | 2126 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2127 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2128 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2129 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2130 | : ((cv && CvGV(cv)) |
2131 | ? GvENAME(CvGV(cv)) | |
2132 | : "__ANON__"))); | |
2133 | goto cleanup; | |
79072805 LW |
2134 | } |
2135 | ||
22c35a8c GS |
2136 | if(PL_psig_name[sig]) { |
2137 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2138 | flags |= 64; |
2139 | sig_sv = sv; | |
2140 | } else { | |
ff0cee69 | 2141 | sv = sv_newmortal(); |
22c35a8c | 2142 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2143 | } |
e336de0d | 2144 | |
e788e7d3 | 2145 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2146 | PUSHMARK(SP); |
79072805 | 2147 | PUSHs(sv); |
79072805 | 2148 | PUTBACK; |
a0d0e21e | 2149 | |
864dbfa3 | 2150 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2151 | |
d3acc0f7 | 2152 | POPSTACK; |
00d579c5 | 2153 | cleanup: |
84902520 | 2154 | if (flags & 1) |
3280af22 | 2155 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2156 | if (flags & 4) |
3280af22 | 2157 | PL_markstack_ptr--; |
84902520 | 2158 | if (flags & 8) |
3280af22 | 2159 | PL_retstack_ix--; |
84902520 | 2160 | if (flags & 16) |
3280af22 | 2161 | PL_scopestack_ix -= 1; |
84902520 TB |
2162 | if (flags & 64) |
2163 | SvREFCNT_dec(sv); | |
533c011a | 2164 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2165 | |
3280af22 NIS |
2166 | PL_Sv = tSv; /* Restore global temporaries. */ |
2167 | PL_Xpv = tXpv; | |
79072805 LW |
2168 | return; |
2169 | } | |
4e35701f NIS |
2170 | |
2171 | ||
51371543 | 2172 | #ifdef PERL_OBJECT |
51371543 GS |
2173 | #include "XSUB.h" |
2174 | #endif | |
2175 | ||
2176 | static void | |
2177 | restore_magic(pTHXo_ void *p) | |
2178 | { | |
2179 | dTHR; | |
2180 | MGS* mgs = SSPTR((I32)p, MGS*); | |
2181 | SV* sv = mgs->mgs_sv; | |
2182 | ||
2183 | if (!sv) | |
2184 | return; | |
2185 | ||
2186 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2187 | { | |
2188 | if (mgs->mgs_flags) | |
2189 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2190 | else | |
2191 | mg_magical(sv); | |
2192 | if (SvGMAGICAL(sv)) | |
2193 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2194 | } | |
2195 | ||
2196 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2197 | ||
2198 | /* If we're still on top of the stack, pop us off. (That condition | |
2199 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2200 | * if it's being called via leave_scope.) | |
2201 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2202 | * may leave alloc gunk on the savestack, and some code | |
2203 | * (e.g. sighandler) doesn't expect that... | |
2204 | */ | |
2205 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2206 | { | |
2207 | I32 popval = SSPOPINT; | |
c76ac1ee | 2208 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2209 | PL_savestack_ix -= 2; |
2210 | popval = SSPOPINT; | |
2211 | assert(popval == SAVEt_ALLOC); | |
2212 | popval = SSPOPINT; | |
2213 | PL_savestack_ix -= popval; | |
2214 | } | |
2215 | ||
2216 | } | |
2217 | ||
2218 | static void | |
2219 | unwind_handler_stack(pTHXo_ void *p) | |
2220 | { | |
2221 | dTHR; | |
2222 | U32 flags = *(U32*)p; | |
2223 | ||
2224 | if (flags & 1) | |
2225 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2226 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2227 | if (flags & 64) | |
2228 | SvREFCNT_dec(sig_sv); | |
2229 | } |