Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
3818b22b | 3 | * Copyright (c) 1991-2000, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
864dbfa3 | 16 | #define PERL_IN_MG_C |
79072805 LW |
17 | #include "perl.h" |
18 | ||
5cd24f17 | 19 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
20 | # ifndef NGROUPS |
21 | # define NGROUPS 32 | |
22 | # endif | |
23 | #endif | |
24 | ||
51371543 GS |
25 | static void restore_magic(pTHXo_ void *p); |
26 | static void unwind_handler_stack(pTHXo_ void *p); | |
27 | ||
c07a80fd | 28 | /* |
29 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
30 | */ | |
31 | ||
32 | struct magic_state { | |
33 | SV* mgs_sv; | |
34 | U32 mgs_flags; | |
455ece5e | 35 | I32 mgs_ss_ix; |
c07a80fd | 36 | }; |
455ece5e | 37 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
38 | |
39 | STATIC void | |
cea2e8a9 | 40 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 41 | { |
455ece5e | 42 | MGS* mgs; |
c07a80fd | 43 | assert(SvMAGICAL(sv)); |
44 | ||
c76ac1ee | 45 | SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix); |
455ece5e AD |
46 | |
47 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 48 | mgs->mgs_sv = sv; |
49 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 50 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 51 | |
52 | SvMAGICAL_off(sv); | |
53 | SvREADONLY_off(sv); | |
54 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 55 | } |
56 | ||
954c1994 GS |
57 | /* |
58 | =for apidoc mg_magical | |
59 | ||
60 | Turns on the magical status of an SV. See C<sv_magic>. | |
61 | ||
62 | =cut | |
63 | */ | |
64 | ||
8990e307 | 65 | void |
864dbfa3 | 66 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
67 | { |
68 | MAGIC* mg; | |
69 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
70 | MGVTBL* vtbl = mg->mg_virtual; | |
71 | if (vtbl) { | |
2b260de0 | 72 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
73 | SvGMAGICAL_on(sv); |
74 | if (vtbl->svt_set) | |
75 | SvSMAGICAL_on(sv); | |
2b260de0 | 76 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
77 | SvRMAGICAL_on(sv); |
78 | } | |
79 | } | |
80 | } | |
81 | ||
954c1994 GS |
82 | /* |
83 | =for apidoc mg_get | |
84 | ||
85 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
86 | ||
87 | =cut | |
88 | */ | |
89 | ||
79072805 | 90 | int |
864dbfa3 | 91 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 92 | { |
455ece5e | 93 | I32 mgs_ix; |
79072805 | 94 | MAGIC* mg; |
c6496cc7 | 95 | MAGIC** mgp; |
760ac839 | 96 | int mgp_valid = 0; |
463ee0b2 | 97 | |
455ece5e AD |
98 | mgs_ix = SSNEW(sizeof(MGS)); |
99 | save_magic(mgs_ix, sv); | |
463ee0b2 | 100 | |
c6496cc7 | 101 | mgp = &SvMAGIC(sv); |
102 | while ((mg = *mgp) != 0) { | |
79072805 | 103 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 | 104 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 105 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 | 106 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
107 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
108 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 109 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 110 | } |
c6496cc7 | 111 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 112 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 113 | mgp = &mg->mg_moremagic; |
760ac839 LW |
114 | mgp_valid = 1; |
115 | } | |
116 | else | |
117 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 118 | } |
463ee0b2 | 119 | |
51371543 | 120 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
121 | return 0; |
122 | } | |
123 | ||
954c1994 GS |
124 | /* |
125 | =for apidoc mg_set | |
126 | ||
127 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
128 | ||
129 | =cut | |
130 | */ | |
131 | ||
79072805 | 132 | int |
864dbfa3 | 133 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 134 | { |
455ece5e | 135 | I32 mgs_ix; |
79072805 | 136 | MAGIC* mg; |
463ee0b2 LW |
137 | MAGIC* nextmg; |
138 | ||
455ece5e AD |
139 | mgs_ix = SSNEW(sizeof(MGS)); |
140 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
141 | |
142 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 143 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 144 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
145 | if (mg->mg_flags & MGf_GSKIP) { |
146 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 147 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 148 | } |
2b260de0 | 149 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 150 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 151 | } |
463ee0b2 | 152 | |
51371543 | 153 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
154 | return 0; |
155 | } | |
156 | ||
954c1994 GS |
157 | /* |
158 | =for apidoc mg_length | |
159 | ||
160 | Report on the SV's length. See C<sv_magic>. | |
161 | ||
162 | =cut | |
163 | */ | |
164 | ||
79072805 | 165 | U32 |
864dbfa3 | 166 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
167 | { |
168 | MAGIC* mg; | |
748a9306 | 169 | char *junk; |
463ee0b2 | 170 | STRLEN len; |
463ee0b2 | 171 | |
79072805 LW |
172 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
173 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 174 | if (vtbl && vtbl->svt_len) { |
455ece5e | 175 | I32 mgs_ix; |
48e43a1c | 176 | |
455ece5e AD |
177 | mgs_ix = SSNEW(sizeof(MGS)); |
178 | save_magic(mgs_ix, sv); | |
a0d0e21e | 179 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 180 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 181 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 LW |
182 | return len; |
183 | } | |
184 | } | |
185 | ||
748a9306 | 186 | junk = SvPV(sv, len); |
463ee0b2 | 187 | return len; |
79072805 LW |
188 | } |
189 | ||
93965878 | 190 | I32 |
864dbfa3 | 191 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
192 | { |
193 | MAGIC* mg; | |
194 | I32 len; | |
ac27b0f5 | 195 | |
93965878 NIS |
196 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
197 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 198 | if (vtbl && vtbl->svt_len) { |
455ece5e AD |
199 | I32 mgs_ix; |
200 | ||
201 | mgs_ix = SSNEW(sizeof(MGS)); | |
202 | save_magic(mgs_ix, sv); | |
93965878 | 203 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 204 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 205 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 NIS |
206 | return len; |
207 | } | |
208 | } | |
209 | ||
210 | switch(SvTYPE(sv)) { | |
211 | case SVt_PVAV: | |
212 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
213 | return len; | |
214 | case SVt_PVHV: | |
215 | /* FIXME */ | |
216 | default: | |
cea2e8a9 | 217 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
218 | break; |
219 | } | |
220 | return 0; | |
221 | } | |
222 | ||
954c1994 GS |
223 | /* |
224 | =for apidoc mg_clear | |
225 | ||
226 | Clear something magical that the SV represents. See C<sv_magic>. | |
227 | ||
228 | =cut | |
229 | */ | |
230 | ||
79072805 | 231 | int |
864dbfa3 | 232 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 233 | { |
455ece5e | 234 | I32 mgs_ix; |
79072805 | 235 | MAGIC* mg; |
463ee0b2 | 236 | |
455ece5e AD |
237 | mgs_ix = SSNEW(sizeof(MGS)); |
238 | save_magic(mgs_ix, sv); | |
463ee0b2 | 239 | |
79072805 LW |
240 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
241 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
242 | /* omit GSKIP -- never set here */ |
243 | ||
2b260de0 | 244 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 245 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 246 | } |
463ee0b2 | 247 | |
51371543 | 248 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
249 | return 0; |
250 | } | |
251 | ||
954c1994 GS |
252 | /* |
253 | =for apidoc mg_find | |
254 | ||
255 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
256 | ||
257 | =cut | |
258 | */ | |
259 | ||
93a17b20 | 260 | MAGIC* |
864dbfa3 | 261 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
262 | { |
263 | MAGIC* mg; | |
3f8f4626 DC |
264 | if (!sv) |
265 | return 0; | |
93a17b20 LW |
266 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
267 | if (mg->mg_type == type) | |
268 | return mg; | |
269 | } | |
270 | return 0; | |
271 | } | |
272 | ||
954c1994 GS |
273 | /* |
274 | =for apidoc mg_copy | |
275 | ||
276 | Copies the magic from one SV to another. See C<sv_magic>. | |
277 | ||
278 | =cut | |
279 | */ | |
280 | ||
79072805 | 281 | int |
864dbfa3 | 282 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 283 | { |
463ee0b2 | 284 | int count = 0; |
79072805 | 285 | MAGIC* mg; |
463ee0b2 LW |
286 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
287 | if (isUPPER(mg->mg_type)) { | |
33c27489 | 288 | sv_magic(nsv, |
fd345fa8 MG |
289 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : |
290 | (mg->mg_type == 'D' && mg->mg_obj) ? sv : mg->mg_obj, | |
33c27489 | 291 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 292 | count++; |
79072805 | 293 | } |
79072805 | 294 | } |
463ee0b2 | 295 | return count; |
79072805 LW |
296 | } |
297 | ||
954c1994 GS |
298 | /* |
299 | =for apidoc mg_free | |
300 | ||
301 | Free any magic storage used by the SV. See C<sv_magic>. | |
302 | ||
303 | =cut | |
304 | */ | |
305 | ||
79072805 | 306 | int |
864dbfa3 | 307 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
308 | { |
309 | MAGIC* mg; | |
310 | MAGIC* moremagic; | |
311 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
312 | MGVTBL* vtbl = mg->mg_virtual; | |
313 | moremagic = mg->mg_moremagic; | |
2b260de0 | 314 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 315 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
93a17b20 | 316 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 317 | if (mg->mg_len >= 0) |
88e89b8a | 318 | Safefree(mg->mg_ptr); |
565764a8 | 319 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 320 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 321 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 322 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
323 | Safefree(mg); |
324 | } | |
325 | SvMAGIC(sv) = 0; | |
326 | return 0; | |
327 | } | |
328 | ||
329 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
330 | #include <signal.h> | |
331 | #endif | |
332 | ||
942e002e | 333 | U32 |
864dbfa3 | 334 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 335 | { |
6cef1e77 | 336 | register REGEXP *rx; |
6cef1e77 | 337 | |
8f580fb8 IZ |
338 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
339 | if (mg->mg_obj) /* @+ */ | |
340 | return rx->nparens; | |
341 | else /* @- */ | |
342 | return rx->lastparen; | |
343 | } | |
ac27b0f5 | 344 | |
942e002e | 345 | return (U32)-1; |
6cef1e77 IZ |
346 | } |
347 | ||
348 | int | |
864dbfa3 | 349 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 350 | { |
6cef1e77 | 351 | register I32 paren; |
cf93c79d | 352 | register I32 s; |
6cef1e77 IZ |
353 | register I32 i; |
354 | register REGEXP *rx; | |
cf93c79d | 355 | I32 t; |
6cef1e77 IZ |
356 | |
357 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
358 | paren = mg->mg_len; | |
359 | if (paren < 0) | |
360 | return 0; | |
361 | if (paren <= rx->nparens && | |
cf93c79d IZ |
362 | (s = rx->startp[paren]) != -1 && |
363 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
364 | { |
365 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 366 | i = t; |
6cef1e77 | 367 | else /* @- */ |
cf93c79d | 368 | i = s; |
6cef1e77 IZ |
369 | sv_setiv(sv,i); |
370 | } | |
371 | } | |
372 | return 0; | |
373 | } | |
374 | ||
e4b89193 | 375 | int |
a29d06ed MG |
376 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
377 | { | |
a29d06ed | 378 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
379 | /* NOT REACHED */ |
380 | return 0; | |
a29d06ed MG |
381 | } |
382 | ||
93a17b20 | 383 | U32 |
864dbfa3 | 384 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
385 | { |
386 | register I32 paren; | |
93a17b20 | 387 | register I32 i; |
d9f97599 | 388 | register REGEXP *rx; |
a197cbdd | 389 | I32 s1, t1; |
93a17b20 LW |
390 | |
391 | switch (*mg->mg_ptr) { | |
392 | case '1': case '2': case '3': case '4': | |
393 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 394 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d | 395 | |
ffc61ed2 | 396 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 397 | getparen: |
d9f97599 | 398 | if (paren <= rx->nparens && |
cf93c79d IZ |
399 | (s1 = rx->startp[paren]) != -1 && |
400 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 401 | { |
cf93c79d | 402 | i = t1 - s1; |
a197cbdd | 403 | getlen: |
ffc61ed2 JH |
404 | if (i > 0 && DO_UTF8(PL_reg_sv)) { |
405 | char *s = rx->subbeg + s1; | |
a197cbdd | 406 | char *send = rx->subbeg + t1; |
ffc61ed2 | 407 | |
c7d7d594 | 408 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); |
a197cbdd | 409 | } |
ffc61ed2 JH |
410 | if (i < 0) |
411 | Perl_croak(aTHX_ "panic: magic_len: %d", i); | |
412 | return i; | |
93a17b20 | 413 | } |
93a17b20 | 414 | } |
748a9306 | 415 | return 0; |
93a17b20 | 416 | case '+': |
3280af22 | 417 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 418 | paren = rx->lastparen; |
13f57bf8 CS |
419 | if (paren) |
420 | goto getparen; | |
93a17b20 | 421 | } |
748a9306 | 422 | return 0; |
93a17b20 | 423 | case '`': |
3280af22 | 424 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
425 | if (rx->startp[0] != -1) { |
426 | i = rx->startp[0]; | |
a197cbdd GS |
427 | if (i > 0) { |
428 | s1 = 0; | |
429 | t1 = i; | |
430 | goto getlen; | |
431 | } | |
93a17b20 | 432 | } |
93a17b20 | 433 | } |
748a9306 | 434 | return 0; |
93a17b20 | 435 | case '\'': |
3280af22 | 436 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
437 | if (rx->endp[0] != -1) { |
438 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
439 | if (i > 0) { |
440 | s1 = rx->endp[0]; | |
441 | t1 = rx->sublen; | |
442 | goto getlen; | |
443 | } | |
93a17b20 | 444 | } |
93a17b20 | 445 | } |
748a9306 | 446 | return 0; |
93a17b20 LW |
447 | } |
448 | magic_get(sv,mg); | |
2d8e6c8d GS |
449 | if (!SvPOK(sv) && SvNIOK(sv)) { |
450 | STRLEN n_a; | |
451 | sv_2pv(sv, &n_a); | |
452 | } | |
93a17b20 LW |
453 | if (SvPOK(sv)) |
454 | return SvCUR(sv); | |
455 | return 0; | |
456 | } | |
457 | ||
79072805 | 458 | int |
864dbfa3 | 459 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
460 | { |
461 | register I32 paren; | |
462 | register char *s; | |
463 | register I32 i; | |
d9f97599 | 464 | register REGEXP *rx; |
79072805 LW |
465 | |
466 | switch (*mg->mg_ptr) { | |
748a9306 | 467 | case '\001': /* ^A */ |
3280af22 | 468 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 469 | break; |
49460fe6 NIS |
470 | case '\003': /* ^C */ |
471 | sv_setiv(sv, (IV)PL_minus_c); | |
472 | break; | |
473 | ||
79072805 | 474 | case '\004': /* ^D */ |
3280af22 | 475 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
d056ab3f GS |
476 | #if defined(YYDEBUG) && defined(DEBUGGING) |
477 | PL_yydebug = (PL_debug & 1); | |
478 | #endif | |
79072805 | 479 | break; |
28f23441 | 480 | case '\005': /* ^E */ |
cd39f2b6 JH |
481 | #ifdef MACOS_TRADITIONAL |
482 | { | |
483 | char msg[256]; | |
ac27b0f5 | 484 | |
bf4acbe4 GS |
485 | sv_setnv(sv,(double)gMacPerl_OSErr); |
486 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
cd39f2b6 JH |
487 | } |
488 | #else | |
28f23441 | 489 | #ifdef VMS |
490 | { | |
491 | # include <descrip.h> | |
492 | # include <starlet.h> | |
493 | char msg[255]; | |
494 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 495 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 496 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
497 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
498 | else | |
499 | sv_setpv(sv,""); | |
500 | } | |
501 | #else | |
88e89b8a | 502 | #ifdef OS2 |
fb73857a | 503 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 504 | sv_setnv(sv, (NV)errno); |
fb73857a | 505 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
506 | } else { | |
017f25f1 IZ |
507 | if (errno != errno_isOS2) { |
508 | int tmp = _syserrno(); | |
509 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
510 | Perl_rc = tmp; | |
511 | } | |
65202027 | 512 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 513 | sv_setpv(sv, os2error(Perl_rc)); |
514 | } | |
88e89b8a | 515 | #else |
22fae026 TM |
516 | #ifdef WIN32 |
517 | { | |
518 | DWORD dwErr = GetLastError(); | |
65202027 | 519 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 520 | if (dwErr) |
76e3520e | 521 | { |
0cb96387 | 522 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 523 | } |
22fae026 TM |
524 | else |
525 | sv_setpv(sv, ""); | |
526 | SetLastError(dwErr); | |
527 | } | |
528 | #else | |
65202027 | 529 | sv_setnv(sv, (NV)errno); |
28f23441 | 530 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
531 | #endif | |
88e89b8a | 532 | #endif |
22fae026 | 533 | #endif |
cd39f2b6 | 534 | #endif |
946ec16e | 535 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 536 | break; |
79072805 | 537 | case '\006': /* ^F */ |
3280af22 | 538 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 539 | break; |
a0d0e21e | 540 | case '\010': /* ^H */ |
3280af22 | 541 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 542 | break; |
9d116dd7 | 543 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
544 | if (PL_inplace) |
545 | sv_setpv(sv, PL_inplace); | |
79072805 | 546 | else |
3280af22 | 547 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 548 | break; |
ac27b0f5 NIS |
549 | case '\017': /* ^O & ^OPEN */ |
550 | if (*(mg->mg_ptr+1) == '\0') | |
551 | sv_setpv(sv, PL_osname); | |
552 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
553 | if (!PL_compiling.cop_io) | |
554 | sv_setsv(sv, &PL_sv_undef); | |
555 | else { | |
556 | sv_setsv(sv, PL_compiling.cop_io); | |
557 | } | |
558 | } | |
28f23441 | 559 | break; |
79072805 | 560 | case '\020': /* ^P */ |
3280af22 | 561 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 562 | break; |
fb73857a | 563 | case '\023': /* ^S */ |
d58bf5aa | 564 | { |
3280af22 | 565 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 566 | (void)SvOK_off(sv); |
3280af22 | 567 | else if (PL_in_eval) |
6dc8a9e4 | 568 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
d58bf5aa | 569 | } |
fb73857a | 570 | break; |
79072805 | 571 | case '\024': /* ^T */ |
88e89b8a | 572 | #ifdef BIG_TIME |
6b88bc9c | 573 | sv_setnv(sv, PL_basetime); |
88e89b8a | 574 | #else |
3280af22 | 575 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 576 | #endif |
79072805 | 577 | break; |
46487f74 | 578 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
579 | if (*(mg->mg_ptr+1) == '\0') |
580 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 581 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
582 | if (PL_compiling.cop_warnings == pWARN_NONE || |
583 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
584 | { |
585 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
586 | } | |
d3a7d8c7 | 587 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 588 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 589 | } |
4438c4b7 JH |
590 | else { |
591 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 592 | } |
d3a7d8c7 | 593 | SvPOK_only(sv); |
4438c4b7 | 594 | } |
46487f74 GS |
595 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
596 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
597 | break; |
598 | case '1': case '2': case '3': case '4': | |
599 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 600 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
601 | I32 s1, t1; |
602 | ||
a863c7d1 MB |
603 | /* |
604 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
605 | * XXX Does the new way break anything? | |
606 | */ | |
ffc61ed2 | 607 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 608 | getparen: |
d9f97599 | 609 | if (paren <= rx->nparens && |
cf93c79d IZ |
610 | (s1 = rx->startp[paren]) != -1 && |
611 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 612 | { |
cf93c79d IZ |
613 | i = t1 - s1; |
614 | s = rx->subbeg + s1; | |
01ec43d0 | 615 | if (!rx->subbeg) |
c2e66d9e GS |
616 | break; |
617 | ||
13f57bf8 | 618 | getrx: |
748a9306 | 619 | if (i >= 0) { |
13f57bf8 | 620 | bool was_tainted; |
3280af22 NIS |
621 | if (PL_tainting) { |
622 | was_tainted = PL_tainted; | |
623 | PL_tainted = FALSE; | |
13f57bf8 | 624 | } |
cf93c79d | 625 | sv_setpvn(sv, s, i); |
ffc61ed2 | 626 | if (DO_UTF8(PL_reg_sv)) |
7e2040f0 GS |
627 | SvUTF8_on(sv); |
628 | else | |
629 | SvUTF8_off(sv); | |
3280af22 NIS |
630 | if (PL_tainting) |
631 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
632 | break; |
633 | } | |
79072805 | 634 | } |
79072805 | 635 | } |
3280af22 | 636 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
637 | break; |
638 | case '+': | |
3280af22 | 639 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 640 | paren = rx->lastparen; |
a0d0e21e LW |
641 | if (paren) |
642 | goto getparen; | |
79072805 | 643 | } |
3280af22 | 644 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
645 | break; |
646 | case '`': | |
3280af22 | 647 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
648 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
649 | i = rx->startp[0]; | |
13f57bf8 | 650 | goto getrx; |
79072805 | 651 | } |
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 (rx->subbeg && rx->endp[0] != -1) { |
658 | s = rx->subbeg + rx->endp[0]; | |
659 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 660 | goto getrx; |
79072805 | 661 | } |
79072805 | 662 | } |
3280af22 | 663 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
664 | break; |
665 | case '.': | |
666 | #ifndef lint | |
3280af22 NIS |
667 | if (GvIO(PL_last_in_gv)) { |
668 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
669 | } |
670 | #endif | |
671 | break; | |
672 | case '?': | |
809a5acc | 673 | { |
809a5acc | 674 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 675 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
676 | LvTARGOFF(sv) = PL_statusvalue; |
677 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 678 | #endif |
809a5acc | 679 | } |
79072805 LW |
680 | break; |
681 | case '^': | |
3280af22 | 682 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
683 | if (s) |
684 | sv_setpv(sv,s); | |
685 | else { | |
3280af22 | 686 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
687 | sv_catpv(sv,"_TOP"); |
688 | } | |
689 | break; | |
690 | case '~': | |
3280af22 | 691 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 692 | if (!s) |
3280af22 | 693 | s = GvENAME(PL_defoutgv); |
79072805 LW |
694 | sv_setpv(sv,s); |
695 | break; | |
696 | #ifndef lint | |
697 | case '=': | |
3280af22 | 698 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
699 | break; |
700 | case '-': | |
3280af22 | 701 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
702 | break; |
703 | case '%': | |
3280af22 | 704 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
705 | break; |
706 | #endif | |
707 | case ':': | |
708 | break; | |
709 | case '/': | |
710 | break; | |
711 | case '[': | |
3280af22 | 712 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
713 | break; |
714 | case '|': | |
3280af22 | 715 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
716 | break; |
717 | case ',': | |
79072805 LW |
718 | break; |
719 | case '\\': | |
79072805 LW |
720 | break; |
721 | case '#': | |
3280af22 | 722 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
723 | break; |
724 | case '!': | |
a5f75d66 | 725 | #ifdef VMS |
65202027 | 726 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 727 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 728 | #else |
88e89b8a | 729 | { |
730 | int saveerrno = errno; | |
65202027 | 731 | sv_setnv(sv, (NV)errno); |
88e89b8a | 732 | #ifdef OS2 |
ed344e4f IZ |
733 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
734 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 735 | else |
a5f75d66 | 736 | #endif |
2304df62 | 737 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 738 | errno = saveerrno; |
739 | } | |
740 | #endif | |
946ec16e | 741 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
742 | break; |
743 | case '<': | |
3280af22 | 744 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
745 | break; |
746 | case '>': | |
3280af22 | 747 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
748 | break; |
749 | case '(': | |
3280af22 | 750 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 751 | #ifdef HAS_GETGROUPS |
785fb66b | 752 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 753 | #endif |
79072805 LW |
754 | goto add_groups; |
755 | case ')': | |
3280af22 | 756 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 757 | #ifdef HAS_GETGROUPS |
785fb66b | 758 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 759 | #endif |
79072805 | 760 | add_groups: |
79072805 | 761 | #ifdef HAS_GETGROUPS |
79072805 | 762 | { |
a0d0e21e | 763 | Groups_t gary[NGROUPS]; |
79072805 | 764 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 765 | while (--i >= 0) |
785fb66b | 766 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
767 | } |
768 | #endif | |
155aba94 | 769 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
770 | break; |
771 | case '*': | |
772 | break; | |
cd39f2b6 | 773 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
774 | case '0': |
775 | break; | |
cd39f2b6 | 776 | #endif |
a863c7d1 MB |
777 | #ifdef USE_THREADS |
778 | case '@': | |
38a03e6e | 779 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
780 | break; |
781 | #endif /* USE_THREADS */ | |
79072805 | 782 | } |
a0d0e21e | 783 | return 0; |
79072805 LW |
784 | } |
785 | ||
786 | int | |
864dbfa3 | 787 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
788 | { |
789 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
790 | ||
791 | if (uf && uf->uf_val) | |
792 | (*uf->uf_val)(uf->uf_index, sv); | |
793 | return 0; | |
794 | } | |
795 | ||
796 | int | |
864dbfa3 | 797 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
798 | { |
799 | register char *s; | |
88e89b8a | 800 | char *ptr; |
5aabfad6 | 801 | STRLEN len, klen; |
a0d0e21e | 802 | I32 i; |
1e422769 | 803 | |
a0d0e21e | 804 | s = SvPV(sv,len); |
5aabfad6 | 805 | ptr = MgPV(mg,klen); |
88e89b8a | 806 | my_setenv(ptr, s); |
1e422769 | 807 | |
a0d0e21e LW |
808 | #ifdef DYNAMIC_ENV_FETCH |
809 | /* We just undefd an environment var. Is a replacement */ | |
810 | /* waiting in the wings? */ | |
811 | if (!len) { | |
5aabfad6 | 812 | SV **valp; |
6b88bc9c | 813 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 814 | s = SvPV(*valp, len); |
a0d0e21e LW |
815 | } |
816 | #endif | |
1e422769 | 817 | |
39e571d4 | 818 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
819 | /* And you'll never guess what the dog had */ |
820 | /* in its mouth... */ | |
3280af22 | 821 | if (PL_tainting) { |
1e422769 | 822 | MgTAINTEDDIR_off(mg); |
823 | #ifdef VMS | |
5aabfad6 | 824 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 825 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
826 | struct stat sbuf; | |
827 | int i = 0, j = 0; | |
828 | ||
829 | do { /* DCL$PATH may be a search list */ | |
830 | while (1) { /* as may dev portion of any element */ | |
831 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
832 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
833 | cando_by_name(S_IWUSR,0,elt) ) { | |
834 | MgTAINTEDDIR_on(mg); | |
835 | return 0; | |
836 | } | |
837 | } | |
838 | if ((cp = strchr(elt, ':')) != Nullch) | |
839 | *cp = '\0'; | |
840 | if (my_trnlnm(elt, eltbuf, j++)) | |
841 | elt = eltbuf; | |
842 | else | |
843 | break; | |
844 | } | |
845 | j = 0; | |
846 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
847 | } | |
848 | #endif /* VMS */ | |
5aabfad6 | 849 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 850 | char *strend = s + len; |
463ee0b2 LW |
851 | |
852 | while (s < strend) { | |
96827780 | 853 | char tmpbuf[256]; |
1e422769 | 854 | struct stat st; |
96827780 | 855 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 856 | s, strend, ':', &i); |
463ee0b2 | 857 | s++; |
96827780 MB |
858 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
859 | || *tmpbuf != '/' | |
c6ed36e1 | 860 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 861 | MgTAINTEDDIR_on(mg); |
1e422769 | 862 | return 0; |
863 | } | |
463ee0b2 | 864 | } |
79072805 LW |
865 | } |
866 | } | |
39e571d4 | 867 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 868 | |
79072805 LW |
869 | return 0; |
870 | } | |
871 | ||
872 | int | |
864dbfa3 | 873 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 874 | { |
2d8e6c8d GS |
875 | STRLEN n_a; |
876 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
877 | return 0; |
878 | } | |
879 | ||
88e89b8a | 880 | int |
864dbfa3 | 881 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 882 | { |
883 | #if defined(VMS) | |
cea2e8a9 | 884 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 885 | #else |
3280af22 | 886 | if (PL_localizing) { |
fb73857a | 887 | HE* entry; |
2d8e6c8d | 888 | STRLEN n_a; |
fb73857a | 889 | magic_clear_all_env(sv,mg); |
890 | hv_iterinit((HV*)sv); | |
155aba94 | 891 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 892 | I32 keylen; |
893 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 894 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 895 | } |
896 | } | |
897 | #endif | |
898 | return 0; | |
899 | } | |
900 | ||
901 | int | |
864dbfa3 | 902 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 903 | { |
ed79a026 | 904 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 905 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 906 | #else |
7766f137 GS |
907 | # ifdef PERL_IMPLICIT_SYS |
908 | PerlEnv_clearenv(); | |
909 | # else | |
910 | # ifdef WIN32 | |
3e3baf6d TB |
911 | char *envv = GetEnvironmentStrings(); |
912 | char *cur = envv; | |
913 | STRLEN len; | |
914 | while (*cur) { | |
915 | char *end = strchr(cur,'='); | |
916 | if (end && end != cur) { | |
917 | *end = '\0'; | |
918 | my_setenv(cur,Nullch); | |
919 | *end = '='; | |
ac5c734f | 920 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
921 | } |
922 | else if ((len = strlen(cur))) | |
923 | cur += len+1; | |
924 | } | |
925 | FreeEnvironmentStrings(envv); | |
7766f137 GS |
926 | # else |
927 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
928 | I32 i; |
929 | ||
3280af22 | 930 | if (environ == PL_origenviron) |
f2517201 | 931 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
932 | else |
933 | for (i = 0; environ[i]; i++) | |
f2517201 | 934 | safesysfree(environ[i]); |
7766f137 | 935 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 936 | |
66b1d557 HM |
937 | environ[0] = Nullch; |
938 | ||
7766f137 GS |
939 | # endif /* WIN32 */ |
940 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 941 | #endif /* VMS */ |
3e3baf6d | 942 | return 0; |
66b1d557 HM |
943 | } |
944 | ||
64ca3a65 | 945 | #ifndef PERL_MICRO |
66b1d557 | 946 | int |
864dbfa3 | 947 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 948 | { |
949 | I32 i; | |
2d8e6c8d | 950 | STRLEN n_a; |
88e89b8a | 951 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 952 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 953 | if (i) { |
22c35a8c GS |
954 | if(PL_psig_ptr[i]) |
955 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 956 | else { |
ff68c719 | 957 | Sighandler_t sigstate = rsignal_state(i); |
958 | ||
88e89b8a | 959 | /* cache state so we don't fetch it again */ |
ff68c719 | 960 | if(sigstate == SIG_IGN) |
88e89b8a | 961 | sv_setpv(sv,"IGNORE"); |
962 | else | |
3280af22 | 963 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 964 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 965 | SvTEMP_off(sv); |
966 | } | |
967 | } | |
968 | return 0; | |
969 | } | |
970 | int | |
864dbfa3 | 971 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 972 | { |
973 | I32 i; | |
2d8e6c8d | 974 | STRLEN n_a; |
88e89b8a | 975 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 976 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 977 | if (i) { |
22c35a8c GS |
978 | if(PL_psig_ptr[i]) { |
979 | SvREFCNT_dec(PL_psig_ptr[i]); | |
980 | PL_psig_ptr[i]=0; | |
88e89b8a | 981 | } |
22c35a8c GS |
982 | if(PL_psig_name[i]) { |
983 | SvREFCNT_dec(PL_psig_name[i]); | |
984 | PL_psig_name[i]=0; | |
88e89b8a | 985 | } |
986 | } | |
987 | return 0; | |
988 | } | |
3d37d572 | 989 | |
85e6fe83 | 990 | int |
864dbfa3 | 991 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
992 | { |
993 | register char *s; | |
994 | I32 i; | |
748a9306 | 995 | SV** svp; |
e72dc28c | 996 | STRLEN len; |
a0d0e21e | 997 | |
e72dc28c | 998 | s = MgPV(mg,len); |
748a9306 LW |
999 | if (*s == '_') { |
1000 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1001 | svp = &PL_diehook; |
748a9306 | 1002 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1003 | svp = &PL_warnhook; |
748a9306 | 1004 | else |
cea2e8a9 | 1005 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1006 | i = 0; |
4633a7c4 LW |
1007 | if (*svp) { |
1008 | SvREFCNT_dec(*svp); | |
1009 | *svp = 0; | |
1010 | } | |
748a9306 LW |
1011 | } |
1012 | else { | |
1013 | i = whichsig(s); /* ...no, a brick */ | |
1014 | if (!i) { | |
e476b1b5 | 1015 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1016 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1017 | return 0; |
1018 | } | |
22c35a8c GS |
1019 | SvREFCNT_dec(PL_psig_name[i]); |
1020 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1021 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1022 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1023 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1024 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1025 | } |
a0d0e21e | 1026 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1027 | if (i) |
3280af22 | 1028 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1029 | else |
1030 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1031 | return 0; |
1032 | } | |
e72dc28c | 1033 | s = SvPV_force(sv,len); |
748a9306 LW |
1034 | if (strEQ(s,"IGNORE")) { |
1035 | if (i) | |
ff68c719 | 1036 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1037 | else |
1038 | *svp = 0; | |
1039 | } | |
1040 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1041 | if (i) | |
ff68c719 | 1042 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1043 | else |
1044 | *svp = 0; | |
1045 | } | |
79072805 | 1046 | else { |
5aabfad6 | 1047 | /* |
1048 | * We should warn if HINT_STRICT_REFS, but without | |
1049 | * access to a known hint bit in a known OP, we can't | |
1050 | * tell whether HINT_STRICT_REFS is in force or not. | |
1051 | */ | |
46fc3d4c | 1052 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1053 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1054 | if (i) |
3280af22 | 1055 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1056 | else |
1057 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1058 | } |
1059 | return 0; | |
1060 | } | |
64ca3a65 | 1061 | #endif /* !PERL_MICRO */ |
79072805 LW |
1062 | |
1063 | int | |
864dbfa3 | 1064 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1065 | { |
3280af22 | 1066 | PL_sub_generation++; |
463ee0b2 LW |
1067 | return 0; |
1068 | } | |
1069 | ||
1070 | int | |
864dbfa3 | 1071 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1072 | { |
a0d0e21e | 1073 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1074 | PL_amagic_generation++; |
463ee0b2 | 1075 | |
a0d0e21e LW |
1076 | return 0; |
1077 | } | |
463ee0b2 | 1078 | |
946ec16e | 1079 | int |
864dbfa3 | 1080 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1081 | { |
1082 | HV *hv = (HV*)LvTARG(sv); | |
1083 | HE *entry; | |
1084 | I32 i = 0; | |
1085 | ||
1086 | if (hv) { | |
1087 | (void) hv_iterinit(hv); | |
33c27489 | 1088 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1089 | i = HvKEYS(hv); |
1090 | else { | |
1091 | /*SUPPRESS 560*/ | |
155aba94 | 1092 | while ((entry = hv_iternext(hv))) { |
6ff81951 GS |
1093 | i++; |
1094 | } | |
1095 | } | |
1096 | } | |
1097 | ||
1098 | sv_setiv(sv, (IV)i); | |
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | int | |
864dbfa3 | 1103 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1104 | { |
1105 | if (LvTARG(sv)) { | |
1106 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1107 | } |
1108 | return 0; | |
ac27b0f5 | 1109 | } |
946ec16e | 1110 | |
e336de0d | 1111 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1112 | STATIC int |
cea2e8a9 | 1113 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1114 | { |
1115 | dSP; | |
463ee0b2 | 1116 | |
924508f0 GS |
1117 | PUSHMARK(SP); |
1118 | EXTEND(SP, n); | |
33c27489 | 1119 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1120 | if (n > 1) { |
93965878 | 1121 | if (mg->mg_ptr) { |
565764a8 | 1122 | if (mg->mg_len >= 0) |
79cb57f6 | 1123 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1124 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1125 | PUSHs((SV*)mg->mg_ptr); |
1126 | } | |
1127 | else if (mg->mg_type == 'p') { | |
565764a8 | 1128 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1129 | } |
1130 | } | |
1131 | if (n > 2) { | |
1132 | PUSHs(val); | |
88e89b8a | 1133 | } |
463ee0b2 LW |
1134 | PUTBACK; |
1135 | ||
864dbfa3 | 1136 | return call_method(meth, flags); |
946ec16e | 1137 | } |
1138 | ||
76e3520e | 1139 | STATIC int |
cea2e8a9 | 1140 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1141 | { |
1142 | dSP; | |
463ee0b2 | 1143 | |
a0d0e21e LW |
1144 | ENTER; |
1145 | SAVETMPS; | |
e788e7d3 | 1146 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1147 | |
33c27489 | 1148 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1149 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1150 | } |
463ee0b2 | 1151 | |
d3acc0f7 | 1152 | POPSTACK; |
a0d0e21e LW |
1153 | FREETMPS; |
1154 | LEAVE; | |
1155 | return 0; | |
1156 | } | |
463ee0b2 | 1157 | |
a0d0e21e | 1158 | int |
864dbfa3 | 1159 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1160 | { |
1161 | magic_methpack(sv,mg,"FETCH"); | |
1162 | if (mg->mg_ptr) | |
1163 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1164 | return 0; |
1165 | } | |
1166 | ||
1167 | int | |
864dbfa3 | 1168 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1169 | { |
1170 | dSP; | |
a60c0954 | 1171 | ENTER; |
e788e7d3 | 1172 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1173 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1174 | POPSTACK; |
a60c0954 | 1175 | LEAVE; |
463ee0b2 LW |
1176 | return 0; |
1177 | } | |
1178 | ||
1179 | int | |
864dbfa3 | 1180 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1181 | { |
a0d0e21e LW |
1182 | return magic_methpack(sv,mg,"DELETE"); |
1183 | } | |
463ee0b2 | 1184 | |
93965878 NIS |
1185 | |
1186 | U32 | |
864dbfa3 | 1187 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1188 | { |
e336de0d | 1189 | dSP; |
93965878 NIS |
1190 | U32 retval = 0; |
1191 | ||
1192 | ENTER; | |
1193 | SAVETMPS; | |
e788e7d3 | 1194 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1195 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1196 | sv = *PL_stack_sp--; |
a60c0954 | 1197 | retval = (U32) SvIV(sv)-1; |
93965878 | 1198 | } |
d3acc0f7 | 1199 | POPSTACK; |
93965878 NIS |
1200 | FREETMPS; |
1201 | LEAVE; | |
1202 | return retval; | |
1203 | } | |
1204 | ||
cea2e8a9 GS |
1205 | int |
1206 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1207 | { |
1208 | dSP; | |
463ee0b2 | 1209 | |
e336de0d | 1210 | ENTER; |
e788e7d3 | 1211 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1212 | PUSHMARK(SP); |
33c27489 | 1213 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1214 | PUTBACK; |
864dbfa3 | 1215 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1216 | POPSTACK; |
a60c0954 | 1217 | LEAVE; |
463ee0b2 LW |
1218 | return 0; |
1219 | } | |
1220 | ||
1221 | int | |
864dbfa3 | 1222 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1223 | { |
463ee0b2 | 1224 | dSP; |
dff6d3cd | 1225 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1226 | |
1227 | ENTER; | |
a0d0e21e | 1228 | SAVETMPS; |
e788e7d3 | 1229 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1230 | PUSHMARK(SP); |
1231 | EXTEND(SP, 2); | |
33c27489 | 1232 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1233 | if (SvOK(key)) |
1234 | PUSHs(key); | |
1235 | PUTBACK; | |
1236 | ||
864dbfa3 | 1237 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1238 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1239 | |
d3acc0f7 | 1240 | POPSTACK; |
a0d0e21e LW |
1241 | FREETMPS; |
1242 | LEAVE; | |
79072805 LW |
1243 | return 0; |
1244 | } | |
1245 | ||
1246 | int | |
864dbfa3 | 1247 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1248 | { |
1249 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1250 | } |
a0d0e21e LW |
1251 | |
1252 | int | |
864dbfa3 | 1253 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1254 | { |
1255 | OP *o; | |
1256 | I32 i; | |
1257 | GV* gv; | |
1258 | SV** svp; | |
2d8e6c8d | 1259 | STRLEN n_a; |
79072805 | 1260 | |
3280af22 | 1261 | gv = PL_DBline; |
79072805 | 1262 | i = SvTRUE(sv); |
188ea221 | 1263 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1264 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1265 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1266 | o->op_private = i; |
79072805 LW |
1267 | return 0; |
1268 | } | |
1269 | ||
1270 | int | |
864dbfa3 | 1271 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1272 | { |
3280af22 | 1273 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1274 | return 0; |
1275 | } | |
1276 | ||
1277 | int | |
864dbfa3 | 1278 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1279 | { |
3280af22 | 1280 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1281 | return 0; |
1282 | } | |
1283 | ||
1284 | int | |
864dbfa3 | 1285 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1286 | { |
1287 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1288 | |
a0d0e21e LW |
1289 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1290 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1291 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1292 | I32 i = mg->mg_len; |
7e2040f0 | 1293 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1294 | sv_pos_b2u(lsv, &i); |
1295 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1296 | return 0; |
1297 | } | |
1298 | } | |
1299 | (void)SvOK_off(sv); | |
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | int | |
864dbfa3 | 1304 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1305 | { |
1306 | SV* lsv = LvTARG(sv); | |
1307 | SSize_t pos; | |
1308 | STRLEN len; | |
c00206c8 | 1309 | STRLEN ulen = 0; |
a0d0e21e LW |
1310 | |
1311 | mg = 0; | |
ac27b0f5 | 1312 | |
a0d0e21e LW |
1313 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1314 | mg = mg_find(lsv, 'g'); | |
1315 | if (!mg) { | |
1316 | if (!SvOK(sv)) | |
1317 | return 0; | |
1318 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1319 | mg = mg_find(lsv, 'g'); | |
1320 | } | |
1321 | else if (!SvOK(sv)) { | |
565764a8 | 1322 | mg->mg_len = -1; |
a0d0e21e LW |
1323 | return 0; |
1324 | } | |
1325 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1326 | ||
c485e607 | 1327 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1328 | |
7e2040f0 | 1329 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1330 | ulen = sv_len_utf8(lsv); |
1331 | if (ulen) | |
1332 | len = ulen; | |
a0ed51b3 LW |
1333 | } |
1334 | ||
a0d0e21e LW |
1335 | if (pos < 0) { |
1336 | pos += len; | |
1337 | if (pos < 0) | |
1338 | pos = 0; | |
1339 | } | |
1340 | else if (pos > len) | |
1341 | pos = len; | |
a0ed51b3 LW |
1342 | |
1343 | if (ulen) { | |
1344 | I32 p = pos; | |
1345 | sv_pos_u2b(lsv, &p, 0); | |
1346 | pos = p; | |
1347 | } | |
1348 | ||
565764a8 | 1349 | mg->mg_len = pos; |
71be2cbc | 1350 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1351 | |
79072805 LW |
1352 | return 0; |
1353 | } | |
1354 | ||
1355 | int | |
864dbfa3 | 1356 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1357 | { |
8646b087 | 1358 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1359 | SvFAKE_off(sv); | |
946ec16e | 1360 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1361 | SvFAKE_on(sv); |
1362 | } | |
1363 | else | |
946ec16e | 1364 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1365 | return 0; |
1366 | } | |
1367 | ||
1368 | int | |
864dbfa3 | 1369 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1370 | { |
1371 | register char *s; | |
1372 | GV* gv; | |
2d8e6c8d | 1373 | STRLEN n_a; |
79072805 LW |
1374 | |
1375 | if (!SvOK(sv)) | |
1376 | return 0; | |
2d8e6c8d | 1377 | s = SvPV(sv, n_a); |
79072805 LW |
1378 | if (*s == '*' && s[1]) |
1379 | s++; | |
85e6fe83 | 1380 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1381 | if (sv == (SV*)gv) |
1382 | return 0; | |
1383 | if (GvGP(sv)) | |
88e89b8a | 1384 | gp_free((GV*)sv); |
79072805 | 1385 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1386 | return 0; |
1387 | } | |
1388 | ||
1389 | int | |
864dbfa3 | 1390 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1391 | { |
1392 | STRLEN len; | |
1393 | SV *lsv = LvTARG(sv); | |
1394 | char *tmps = SvPV(lsv,len); | |
1395 | I32 offs = LvTARGOFF(sv); | |
1396 | I32 rem = LvTARGLEN(sv); | |
1397 | ||
1398 | if (offs > len) | |
1399 | offs = len; | |
1400 | if (rem + offs > len) | |
1401 | rem = len - offs; | |
1402 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
2ef4b674 GS |
1403 | if (DO_UTF8(lsv)) |
1404 | SvUTF8_on(sv); | |
6ff81951 GS |
1405 | return 0; |
1406 | } | |
1407 | ||
1408 | int | |
864dbfa3 | 1409 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1410 | { |
8990e307 LW |
1411 | STRLEN len; |
1412 | char *tmps = SvPV(sv,len); | |
1413 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1414 | return 0; |
1415 | } | |
1416 | ||
1417 | int | |
864dbfa3 | 1418 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1419 | { |
565764a8 | 1420 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1421 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1422 | return 0; |
1423 | } | |
1424 | ||
1425 | int | |
864dbfa3 | 1426 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1427 | { |
3280af22 NIS |
1428 | if (PL_localizing) { |
1429 | if (PL_localizing == 1) | |
565764a8 | 1430 | mg->mg_len <<= 1; |
748a9306 | 1431 | else |
565764a8 | 1432 | mg->mg_len >>= 1; |
a0d0e21e | 1433 | } |
3280af22 | 1434 | else if (PL_tainted) |
565764a8 | 1435 | mg->mg_len |= 1; |
748a9306 | 1436 | else |
565764a8 | 1437 | mg->mg_len &= ~1; |
463ee0b2 LW |
1438 | return 0; |
1439 | } | |
1440 | ||
1441 | int | |
864dbfa3 | 1442 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1443 | { |
1444 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1445 | |
1446 | if (!lsv) { | |
155aba94 | 1447 | (void)SvOK_off(sv); |
6ff81951 GS |
1448 | return 0; |
1449 | } | |
6ff81951 | 1450 | |
81e118e0 | 1451 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1452 | return 0; |
1453 | } | |
1454 | ||
1455 | int | |
864dbfa3 | 1456 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1457 | { |
1458 | do_vecset(sv); /* XXX slurp this routine */ | |
1459 | return 0; | |
1460 | } | |
1461 | ||
1462 | int | |
864dbfa3 | 1463 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1464 | { |
71be2cbc | 1465 | SV *targ = Nullsv; |
5f05dabc | 1466 | if (LvTARGLEN(sv)) { |
68dc0745 | 1467 | if (mg->mg_obj) { |
74e13ce4 GS |
1468 | SV *ahv = LvTARG(sv); |
1469 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1470 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1471 | if (he) | |
1472 | targ = HeVAL(he); | |
1473 | } | |
1474 | else { | |
1475 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1476 | if (svp) | |
1477 | targ = *svp; | |
1478 | } | |
68dc0745 | 1479 | } |
1480 | else { | |
3c78fafa | 1481 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1482 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1483 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1484 | } | |
3280af22 | 1485 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1486 | /* somebody else defined it for us */ |
1487 | SvREFCNT_dec(LvTARG(sv)); | |
1488 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1489 | LvTARGLEN(sv) = 0; | |
1490 | SvREFCNT_dec(mg->mg_obj); | |
1491 | mg->mg_obj = Nullsv; | |
1492 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1493 | } | |
5f05dabc | 1494 | } |
71be2cbc | 1495 | else |
1496 | targ = LvTARG(sv); | |
3280af22 | 1497 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1498 | return 0; |
1499 | } | |
1500 | ||
1501 | int | |
864dbfa3 | 1502 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1503 | { |
1504 | if (LvTARGLEN(sv)) | |
68dc0745 | 1505 | vivify_defelem(sv); |
1506 | if (LvTARG(sv)) { | |
5f05dabc | 1507 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1508 | SvSETMAGIC(LvTARG(sv)); |
1509 | } | |
5f05dabc | 1510 | return 0; |
1511 | } | |
1512 | ||
71be2cbc | 1513 | void |
864dbfa3 | 1514 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1515 | { |
74e13ce4 GS |
1516 | MAGIC *mg; |
1517 | SV *value = Nullsv; | |
71be2cbc | 1518 | |
68dc0745 | 1519 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1520 | return; |
68dc0745 | 1521 | if (mg->mg_obj) { |
74e13ce4 | 1522 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1523 | STRLEN n_a; |
74e13ce4 | 1524 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1525 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1526 | if (he) |
1527 | value = HeVAL(he); | |
1528 | } | |
1529 | else { | |
af7f9c15 | 1530 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1531 | if (svp) |
1532 | value = *svp; | |
1533 | } | |
3280af22 | 1534 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1535 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1536 | } |
68dc0745 | 1537 | else { |
1538 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1539 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1540 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1541 | else { | |
1542 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1543 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1544 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1545 | } |
1546 | } | |
3e3baf6d | 1547 | (void)SvREFCNT_inc(value); |
68dc0745 | 1548 | SvREFCNT_dec(LvTARG(sv)); |
1549 | LvTARG(sv) = value; | |
71be2cbc | 1550 | LvTARGLEN(sv) = 0; |
68dc0745 | 1551 | SvREFCNT_dec(mg->mg_obj); |
1552 | mg->mg_obj = Nullsv; | |
1553 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1554 | } |
1555 | ||
1556 | int | |
864dbfa3 | 1557 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1558 | { |
1559 | AV *av = (AV*)mg->mg_obj; | |
1560 | SV **svp = AvARRAY(av); | |
1561 | I32 i = AvFILLp(av); | |
1562 | while (i >= 0) { | |
1563 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1564 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1565 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1566 | /* XXX Should we check that it hasn't changed? */ |
1567 | SvRV(svp[i]) = 0; | |
155aba94 | 1568 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1569 | SvWEAKREF_off(svp[i]); |
1570 | svp[i] = &PL_sv_undef; | |
1571 | } | |
1572 | i--; | |
1573 | } | |
1574 | return 0; | |
1575 | } | |
1576 | ||
1577 | int | |
864dbfa3 | 1578 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1579 | { |
565764a8 | 1580 | mg->mg_len = -1; |
c6496cc7 | 1581 | SvSCREAM_off(sv); |
93a17b20 LW |
1582 | return 0; |
1583 | } | |
1584 | ||
1585 | int | |
864dbfa3 | 1586 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1587 | { |
463ee0b2 | 1588 | sv_unmagic(sv, 'B'); |
79072805 LW |
1589 | SvVALID_off(sv); |
1590 | return 0; | |
1591 | } | |
1592 | ||
1593 | int | |
864dbfa3 | 1594 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1595 | { |
1596 | sv_unmagic(sv, 'f'); | |
1597 | SvCOMPILED_off(sv); | |
1598 | return 0; | |
1599 | } | |
1600 | ||
1601 | int | |
864dbfa3 | 1602 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1603 | { |
1604 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1605 | ||
1606 | if (uf && uf->uf_set) | |
1607 | (*uf->uf_set)(uf->uf_index, sv); | |
1608 | return 0; | |
1609 | } | |
1610 | ||
c277df42 | 1611 | int |
864dbfa3 | 1612 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1613 | { |
1614 | regexp *re = (regexp *)mg->mg_obj; | |
1615 | ReREFCNT_dec(re); | |
1616 | return 0; | |
1617 | } | |
1618 | ||
7a4c00b4 | 1619 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1620 | int |
864dbfa3 | 1621 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1622 | { |
1623 | /* | |
838b5b74 | 1624 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1625 | * and vanished with a faint plop. |
1626 | */ | |
7a4c00b4 | 1627 | if (mg->mg_ptr) { |
1628 | Safefree(mg->mg_ptr); | |
1629 | mg->mg_ptr = NULL; | |
565764a8 | 1630 | mg->mg_len = -1; |
7a4c00b4 | 1631 | } |
bbce6d69 | 1632 | return 0; |
1633 | } | |
7a4c00b4 | 1634 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1635 | |
1636 | int | |
864dbfa3 | 1637 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1638 | { |
1639 | register char *s; | |
1640 | I32 i; | |
8990e307 | 1641 | STRLEN len; |
79072805 | 1642 | switch (*mg->mg_ptr) { |
748a9306 | 1643 | case '\001': /* ^A */ |
3280af22 | 1644 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1645 | break; |
49460fe6 NIS |
1646 | case '\003': /* ^C */ |
1647 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1648 | break; | |
1649 | ||
79072805 | 1650 | case '\004': /* ^D */ |
3280af22 | 1651 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1652 | DEBUG_x(dump_all()); |
1653 | break; | |
28f23441 | 1654 | case '\005': /* ^E */ |
cd39f2b6 | 1655 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1656 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1657 | #else |
cd39f2b6 JH |
1658 | # ifdef VMS |
1659 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1660 | # else |
cd39f2b6 JH |
1661 | # ifdef WIN32 |
1662 | SetLastError( SvIV(sv) ); | |
1663 | # else | |
1664 | # ifndef OS2 | |
f86702cc | 1665 | /* will anyone ever use this? */ |
1666 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1667 | # endif |
048c1ddf IZ |
1668 | # endif |
1669 | # endif | |
22fae026 | 1670 | #endif |
28f23441 | 1671 | break; |
79072805 | 1672 | case '\006': /* ^F */ |
3280af22 | 1673 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1674 | break; |
a0d0e21e | 1675 | case '\010': /* ^H */ |
3280af22 | 1676 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1677 | break; |
9d116dd7 | 1678 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1679 | if (PL_inplace) |
1680 | Safefree(PL_inplace); | |
79072805 | 1681 | if (SvOK(sv)) |
2d8e6c8d | 1682 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1683 | else |
3280af22 | 1684 | PL_inplace = Nullch; |
79072805 | 1685 | break; |
28f23441 | 1686 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1687 | if (*(mg->mg_ptr+1) == '\0') { |
1688 | if (PL_osname) | |
1689 | Safefree(PL_osname); | |
1690 | if (SvOK(sv)) | |
1691 | PL_osname = savepv(SvPV(sv,len)); | |
1692 | else | |
1693 | PL_osname = Nullch; | |
1694 | } | |
1695 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1696 | if (!PL_compiling.cop_io) | |
1697 | PL_compiling.cop_io = newSVsv(sv); | |
1698 | else | |
1699 | sv_setsv(PL_compiling.cop_io,sv); | |
1700 | } | |
28f23441 | 1701 | break; |
79072805 | 1702 | case '\020': /* ^P */ |
3280af22 | 1703 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1704 | if (PL_perldb && !PL_DBsingle) |
1705 | init_debugger(); | |
79072805 LW |
1706 | break; |
1707 | case '\024': /* ^T */ | |
88e89b8a | 1708 | #ifdef BIG_TIME |
6b88bc9c | 1709 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1710 | #else |
3280af22 | 1711 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1712 | #endif |
79072805 | 1713 | break; |
46487f74 | 1714 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1715 | if (*(mg->mg_ptr+1) == '\0') { |
1716 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1717 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1718 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1719 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1720 | } |
599cee73 | 1721 | } |
6a818117 | 1722 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1723 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1724 | if (!SvPOK(sv) && PL_localizing) { |
1725 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1726 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1727 | break; |
1728 | } | |
f4fc7782 | 1729 | { |
b5477537 | 1730 | STRLEN len, i; |
d3a7d8c7 | 1731 | int accumulate = 0 ; |
f4fc7782 | 1732 | int any_fatals = 0 ; |
d3a7d8c7 | 1733 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1734 | for (i = 0 ; i < len ; ++i) { |
1735 | accumulate |= ptr[i] ; | |
1736 | any_fatals |= (ptr[i] & 0xAA) ; | |
1737 | } | |
d3a7d8c7 GS |
1738 | if (!accumulate) |
1739 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1740 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1741 | PL_compiling.cop_warnings = pWARN_ALL; | |
1742 | PL_dowarn |= G_WARN_ONCE ; | |
1743 | } | |
d3a7d8c7 GS |
1744 | else { |
1745 | if (specialWARN(PL_compiling.cop_warnings)) | |
1746 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1747 | else | |
1748 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1749 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1750 | PL_dowarn |= G_WARN_ONCE ; | |
1751 | } | |
f4fc7782 | 1752 | |
d3a7d8c7 | 1753 | } |
4438c4b7 | 1754 | } |
971a9dd3 | 1755 | } |
46487f74 GS |
1756 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1757 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1758 | break; |
1759 | case '.': | |
3280af22 NIS |
1760 | if (PL_localizing) { |
1761 | if (PL_localizing == 1) | |
7766f137 | 1762 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1763 | } |
3280af22 NIS |
1764 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1765 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1766 | break; |
1767 | case '^': | |
3280af22 | 1768 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1769 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1770 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1771 | break; |
1772 | case '~': | |
3280af22 | 1773 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1774 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1775 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1776 | break; |
1777 | case '=': | |
3280af22 | 1778 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1779 | break; |
1780 | case '-': | |
3280af22 NIS |
1781 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1782 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1783 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1784 | break; |
1785 | case '%': | |
3280af22 | 1786 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1787 | break; |
1788 | case '|': | |
4b65379b | 1789 | { |
3280af22 | 1790 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1791 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1792 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1793 | else { | |
1794 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1795 | PerlIO *ofp = IoOFP(io); | |
1796 | if (ofp) | |
1797 | (void)PerlIO_flush(ofp); | |
1798 | IoFLAGS(io) |= IOf_FLUSH; | |
1799 | } | |
1800 | } | |
79072805 LW |
1801 | } |
1802 | break; | |
1803 | case '*': | |
463ee0b2 | 1804 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1805 | PL_multiline = (i != 0); |
79072805 LW |
1806 | break; |
1807 | case '/': | |
3280af22 NIS |
1808 | SvREFCNT_dec(PL_nrs); |
1809 | PL_nrs = newSVsv(sv); | |
1810 | SvREFCNT_dec(PL_rs); | |
1811 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1812 | break; |
1813 | case '\\': | |
7889fe52 NIS |
1814 | if (PL_ors_sv) |
1815 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 1816 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 1817 | PL_ors_sv = newSVsv(sv); |
009c130f | 1818 | } |
e3c19b7b | 1819 | else { |
7889fe52 | 1820 | PL_ors_sv = Nullsv; |
e3c19b7b | 1821 | } |
79072805 LW |
1822 | break; |
1823 | case ',': | |
7889fe52 NIS |
1824 | if (PL_ofs_sv) |
1825 | SvREFCNT_dec(PL_ofs_sv); | |
1826 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1827 | PL_ofs_sv = newSVsv(sv); | |
1828 | } | |
1829 | else { | |
1830 | PL_ofs_sv = Nullsv; | |
1831 | } | |
79072805 LW |
1832 | break; |
1833 | case '#': | |
3280af22 NIS |
1834 | if (PL_ofmt) |
1835 | Safefree(PL_ofmt); | |
2d8e6c8d | 1836 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1837 | break; |
1838 | case '[': | |
3280af22 | 1839 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1840 | break; |
1841 | case '?': | |
ff0cee69 | 1842 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1843 | if (PL_localizing == 2) { |
1844 | PL_statusvalue = LvTARGOFF(sv); | |
1845 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1846 | } |
1847 | else | |
1848 | #endif | |
1849 | #ifdef VMSISH_STATUS | |
1850 | if (VMSISH_STATUS) | |
1851 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1852 | else | |
1853 | #endif | |
1854 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1855 | break; |
1856 | case '!': | |
78987ded | 1857 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1858 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1859 | break; |
1860 | case '<': | |
3280af22 NIS |
1861 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1862 | if (PL_delaymagic) { | |
1863 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1864 | break; /* don't do magic till later */ |
1865 | } | |
1866 | #ifdef HAS_SETRUID | |
b28d0864 | 1867 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1868 | #else |
1869 | #ifdef HAS_SETREUID | |
3280af22 | 1870 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1871 | #else |
85e6fe83 | 1872 | #ifdef HAS_SETRESUID |
b28d0864 | 1873 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1874 | #else |
b28d0864 NIS |
1875 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1876 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1877 | else { |
d8eceb89 | 1878 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1879 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1880 | } |
79072805 LW |
1881 | #endif |
1882 | #endif | |
85e6fe83 | 1883 | #endif |
d8eceb89 | 1884 | PL_uid = PerlProc_getuid(); |
3280af22 | 1885 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1886 | break; |
1887 | case '>': | |
3280af22 NIS |
1888 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1889 | if (PL_delaymagic) { | |
1890 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1891 | break; /* don't do magic till later */ |
1892 | } | |
1893 | #ifdef HAS_SETEUID | |
3280af22 | 1894 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1895 | #else |
1896 | #ifdef HAS_SETREUID | |
b28d0864 | 1897 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1898 | #else |
1899 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1900 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1901 | #else |
b28d0864 NIS |
1902 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1903 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1904 | else { |
e8ee3774 | 1905 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1906 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1907 | } |
79072805 LW |
1908 | #endif |
1909 | #endif | |
85e6fe83 | 1910 | #endif |
d8eceb89 | 1911 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1912 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1913 | break; |
1914 | case '(': | |
3280af22 NIS |
1915 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1916 | if (PL_delaymagic) { | |
1917 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1918 | break; /* don't do magic till later */ |
1919 | } | |
1920 | #ifdef HAS_SETRGID | |
b28d0864 | 1921 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1922 | #else |
1923 | #ifdef HAS_SETREGID | |
3280af22 | 1924 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1925 | #else |
1926 | #ifdef HAS_SETRESGID | |
b28d0864 | 1927 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1928 | #else |
b28d0864 NIS |
1929 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1930 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1931 | else { |
d8eceb89 | 1932 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 1933 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1934 | } |
79072805 LW |
1935 | #endif |
1936 | #endif | |
85e6fe83 | 1937 | #endif |
d8eceb89 | 1938 | PL_gid = PerlProc_getgid(); |
3280af22 | 1939 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1940 | break; |
1941 | case ')': | |
5cd24f17 | 1942 | #ifdef HAS_SETGROUPS |
1943 | { | |
2d8e6c8d | 1944 | char *p = SvPV(sv, len); |
5cd24f17 | 1945 | Groups_t gary[NGROUPS]; |
1946 | ||
5cd24f17 | 1947 | while (isSPACE(*p)) |
1948 | ++p; | |
2d4389e4 | 1949 | PL_egid = Atol(p); |
5cd24f17 | 1950 | for (i = 0; i < NGROUPS; ++i) { |
1951 | while (*p && !isSPACE(*p)) | |
1952 | ++p; | |
1953 | while (isSPACE(*p)) | |
1954 | ++p; | |
1955 | if (!*p) | |
1956 | break; | |
2d4389e4 | 1957 | gary[i] = Atol(p); |
5cd24f17 | 1958 | } |
8cc95fdb | 1959 | if (i) |
1960 | (void)setgroups(i, gary); | |
5cd24f17 | 1961 | } |
1962 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1963 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1964 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1965 | if (PL_delaymagic) { |
1966 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1967 | break; /* don't do magic till later */ |
1968 | } | |
1969 | #ifdef HAS_SETEGID | |
3280af22 | 1970 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1971 | #else |
1972 | #ifdef HAS_SETREGID | |
b28d0864 | 1973 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1974 | #else |
1975 | #ifdef HAS_SETRESGID | |
b28d0864 | 1976 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1977 | #else |
b28d0864 NIS |
1978 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1979 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1980 | else { |
d8eceb89 | 1981 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 1982 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 1983 | } |
79072805 LW |
1984 | #endif |
1985 | #endif | |
85e6fe83 | 1986 | #endif |
d8eceb89 | 1987 | PL_egid = PerlProc_getegid(); |
3280af22 | 1988 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1989 | break; |
1990 | case ':': | |
2d8e6c8d | 1991 | PL_chopset = SvPV_force(sv,len); |
79072805 | 1992 | break; |
cd39f2b6 | 1993 | #ifndef MACOS_TRADITIONAL |
79072805 | 1994 | case '0': |
4bc88a62 PS |
1995 | #ifdef HAS_SETPROCTITLE |
1996 | /* The BSDs don't show the argv[] in ps(1) output, they | |
1997 | * show a string from the process struct and provide | |
1998 | * the setproctitle() routine to manipulate that. */ | |
1999 | { | |
2000 | s = SvPV(sv, len); | |
9aad2c0e JH |
2001 | # if __FreeBSD_version >= 410001 |
2002 | /* The leading "-" removes the "perl: " prefix, | |
4bc88a62 PS |
2003 | * but not the "(perl) suffix from the ps(1) |
2004 | * output, because that's what ps(1) shows if the | |
2005 | * argv[] is modified. */ | |
2006 | setproctitle("-%s", s, len + 1); | |
9aad2c0e | 2007 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2008 | /* This doesn't really work if you assume that |
2009 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2010 | * because in ps(1) output the result will be like | |
2011 | * sprintf("perl: %s (perl)", s) | |
2012 | * I guess this is a security feature: | |
2013 | * one (a user process) cannot get rid of the original name. | |
2014 | * --jhi */ | |
2015 | setproctitle("%s", s); | |
2016 | # endif | |
2017 | } | |
2018 | #endif | |
3280af22 NIS |
2019 | if (!PL_origalen) { |
2020 | s = PL_origargv[0]; | |
79072805 LW |
2021 | s += strlen(s); |
2022 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2023 | for (i = 1; i < PL_origargc; i++) { |
2024 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2025 | #ifdef OS2 |
6b88bc9c | 2026 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2027 | #endif |
fb73857a | 2028 | ) |
379c4362 GS |
2029 | { |
2030 | ++s; | |
2031 | s += strlen(s); /* this one is ok too */ | |
2032 | } | |
fb73857a | 2033 | else |
2034 | break; | |
79072805 | 2035 | } |
bbce6d69 | 2036 | /* can grab env area too? */ |
3280af22 | 2037 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2038 | #ifdef OS2 |
6b88bc9c | 2039 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
ac27b0f5 | 2040 | #endif |
fb73857a | 2041 | )) { |
66b1d557 | 2042 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2043 | /* force copy of environment */ |
3280af22 | 2044 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2045 | if (PL_origenviron[i] == s + 1) { |
2046 | ++s; | |
2047 | s += strlen(s); | |
2048 | } | |
fb73857a | 2049 | else |
2050 | break; | |
79072805 | 2051 | } |
3280af22 | 2052 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2053 | } |
a0d0e21e | 2054 | s = SvPV_force(sv,len); |
8990e307 | 2055 | i = len; |
3280af22 NIS |
2056 | if (i >= PL_origalen) { |
2057 | i = PL_origalen; | |
fb73857a | 2058 | /* don't allow system to limit $0 seen by script */ |
2059 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2060 | Copy(s, PL_origargv[0], i, char); |
2061 | s = PL_origargv[0]+i; | |
fb73857a | 2062 | *s = '\0'; |
79072805 LW |
2063 | } |
2064 | else { | |
3280af22 NIS |
2065 | Copy(s, PL_origargv[0], i, char); |
2066 | s = PL_origargv[0]+i; | |
79072805 | 2067 | *s++ = '\0'; |
3280af22 | 2068 | while (++i < PL_origalen) |
8990e307 | 2069 | *s++ = ' '; |
3280af22 NIS |
2070 | s = PL_origargv[0]+i; |
2071 | for (i = 1; i < PL_origargc; i++) | |
2072 | PL_origargv[i] = Nullch; | |
79072805 LW |
2073 | } |
2074 | break; | |
cd39f2b6 | 2075 | #endif |
a863c7d1 MB |
2076 | #ifdef USE_THREADS |
2077 | case '@': | |
38a03e6e | 2078 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2079 | break; |
2080 | #endif /* USE_THREADS */ | |
79072805 LW |
2081 | } |
2082 | return 0; | |
2083 | } | |
2084 | ||
f93b4edd MB |
2085 | #ifdef USE_THREADS |
2086 | int | |
864dbfa3 | 2087 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2088 | { |
b900a521 JH |
2089 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2090 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2091 | PTR2UV(thr), PTR2UV(sv));) | |
f93b4edd | 2092 | if (MgOWNER(mg)) |
cea2e8a9 | 2093 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2094 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2095 | COND_DESTROY(MgCONDP(mg)); | |
2096 | return 0; | |
2097 | } | |
2098 | #endif /* USE_THREADS */ | |
2099 | ||
79072805 | 2100 | I32 |
864dbfa3 | 2101 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2102 | { |
2103 | register char **sigv; | |
2104 | ||
22c35a8c | 2105 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2106 | if (strEQ(sig,*sigv)) |
22c35a8c | 2107 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2108 | #ifdef SIGCLD |
2109 | if (strEQ(sig,"CHLD")) | |
2110 | return SIGCLD; | |
2111 | #endif | |
2112 | #ifdef SIGCHLD | |
2113 | if (strEQ(sig,"CLD")) | |
2114 | return SIGCHLD; | |
2115 | #endif | |
2116 | return 0; | |
2117 | } | |
2118 | ||
84902520 TB |
2119 | static SV* sig_sv; |
2120 | ||
ecfc5424 | 2121 | Signal_t |
cea2e8a9 | 2122 | Perl_sighandler(int sig) |
79072805 | 2123 | { |
71d280e3 GS |
2124 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2125 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ | |
2126 | #else | |
cea2e8a9 | 2127 | dTHX; |
71d280e3 | 2128 | #endif |
79072805 | 2129 | dSP; |
00d579c5 | 2130 | GV *gv = Nullgv; |
a0d0e21e | 2131 | HV *st; |
3280af22 | 2132 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2133 | CV *cv = Nullcv; |
533c011a | 2134 | OP *myop = PL_op; |
84902520 | 2135 | U32 flags = 0; |
155aba94 | 2136 | I32 o_save_i = PL_savestack_ix; |
3280af22 | 2137 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2138 | |
2139 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
2140 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ | |
2141 | #endif | |
ac27b0f5 | 2142 | |
3280af22 | 2143 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2144 | flags |= 1; |
3280af22 | 2145 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2146 | flags |= 4; |
3280af22 | 2147 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2148 | flags |= 8; |
3280af22 | 2149 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2150 | flags |= 16; |
2151 | ||
22c35a8c | 2152 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2153 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2154 | PL_sig_name[sig]); |
ff0cee69 | 2155 | |
84902520 TB |
2156 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2157 | infinity, so we fix 4 (in fact 5): */ | |
2158 | if (flags & 1) { | |
3280af22 NIS |
2159 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2160 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2161 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2162 | } |
ac27b0f5 | 2163 | if (flags & 4) |
3280af22 | 2164 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2165 | if (flags & 8) { |
3280af22 NIS |
2166 | PL_retstack_ix++; |
2167 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2168 | } |
2169 | if (flags & 16) | |
3280af22 | 2170 | PL_scopestack_ix += 1; |
84902520 | 2171 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2172 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2173 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2174 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2175 | |
a0d0e21e | 2176 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2177 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2178 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2179 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2180 | : ((cv && CvGV(cv)) |
2181 | ? GvENAME(CvGV(cv)) | |
2182 | : "__ANON__"))); | |
2183 | goto cleanup; | |
79072805 LW |
2184 | } |
2185 | ||
22c35a8c GS |
2186 | if(PL_psig_name[sig]) { |
2187 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2188 | flags |= 64; |
2189 | sig_sv = sv; | |
2190 | } else { | |
ff0cee69 | 2191 | sv = sv_newmortal(); |
22c35a8c | 2192 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2193 | } |
e336de0d | 2194 | |
e788e7d3 | 2195 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2196 | PUSHMARK(SP); |
79072805 | 2197 | PUSHs(sv); |
79072805 | 2198 | PUTBACK; |
a0d0e21e | 2199 | |
864dbfa3 | 2200 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2201 | |
d3acc0f7 | 2202 | POPSTACK; |
00d579c5 | 2203 | cleanup: |
84902520 | 2204 | if (flags & 1) |
3280af22 | 2205 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2206 | if (flags & 4) |
3280af22 | 2207 | PL_markstack_ptr--; |
ac27b0f5 | 2208 | if (flags & 8) |
3280af22 | 2209 | PL_retstack_ix--; |
84902520 | 2210 | if (flags & 16) |
3280af22 | 2211 | PL_scopestack_ix -= 1; |
84902520 TB |
2212 | if (flags & 64) |
2213 | SvREFCNT_dec(sv); | |
533c011a | 2214 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2215 | |
3280af22 NIS |
2216 | PL_Sv = tSv; /* Restore global temporaries. */ |
2217 | PL_Xpv = tXpv; | |
79072805 LW |
2218 | return; |
2219 | } | |
4e35701f NIS |
2220 | |
2221 | ||
51371543 | 2222 | #ifdef PERL_OBJECT |
51371543 GS |
2223 | #include "XSUB.h" |
2224 | #endif | |
2225 | ||
2226 | static void | |
2227 | restore_magic(pTHXo_ void *p) | |
2228 | { | |
48944bdf | 2229 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2230 | SV* sv = mgs->mgs_sv; |
2231 | ||
2232 | if (!sv) | |
2233 | return; | |
2234 | ||
2235 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2236 | { | |
2237 | if (mgs->mgs_flags) | |
2238 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2239 | else | |
2240 | mg_magical(sv); | |
2241 | if (SvGMAGICAL(sv)) | |
2242 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2243 | } | |
2244 | ||
2245 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2246 | ||
2247 | /* If we're still on top of the stack, pop us off. (That condition | |
2248 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2249 | * if it's being called via leave_scope.) | |
2250 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2251 | * may leave alloc gunk on the savestack, and some code | |
2252 | * (e.g. sighandler) doesn't expect that... | |
2253 | */ | |
2254 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2255 | { | |
2256 | I32 popval = SSPOPINT; | |
c76ac1ee | 2257 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2258 | PL_savestack_ix -= 2; |
2259 | popval = SSPOPINT; | |
2260 | assert(popval == SAVEt_ALLOC); | |
2261 | popval = SSPOPINT; | |
2262 | PL_savestack_ix -= popval; | |
2263 | } | |
2264 | ||
2265 | } | |
2266 | ||
2267 | static void | |
2268 | unwind_handler_stack(pTHXo_ void *p) | |
2269 | { | |
51371543 GS |
2270 | U32 flags = *(U32*)p; |
2271 | ||
2272 | if (flags & 1) | |
2273 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2274 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2275 | if (flags & 64) | |
2276 | SvREFCNT_dec(sig_sv); | |
2277 | } |