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