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; | |
195 | ||
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, |
79d2a3c4 GS |
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 | } | |
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 | ||
5e1047cb GS |
373 | int |
374 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) | |
375 | { | |
5e1047cb GS |
376 | Perl_croak(aTHX_ PL_no_modify); |
377 | /* NOT REACHED */ | |
378 | return 0; | |
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]; | |
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; |
28f23441 | 553 | case '\017': /* ^O */ |
3280af22 | 554 | sv_setpv(sv, PL_osname); |
28f23441 | 555 | break; |
79072805 | 556 | case '\020': /* ^P */ |
3280af22 | 557 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 558 | break; |
fb73857a | 559 | case '\023': /* ^S */ |
d58bf5aa | 560 | { |
3280af22 | 561 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 562 | (void)SvOK_off(sv); |
3280af22 | 563 | else if (PL_in_eval) |
72d299db | 564 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
d58bf5aa | 565 | } |
fb73857a | 566 | break; |
79072805 | 567 | case '\024': /* ^T */ |
88e89b8a | 568 | #ifdef BIG_TIME |
6b88bc9c | 569 | sv_setnv(sv, PL_basetime); |
88e89b8a | 570 | #else |
3280af22 | 571 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 572 | #endif |
79072805 | 573 | break; |
46487f74 | 574 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
575 | if (*(mg->mg_ptr+1) == '\0') |
576 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 577 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
578 | if (PL_compiling.cop_warnings == pWARN_NONE || |
579 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
580 | { |
581 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
582 | } | |
d3a7d8c7 | 583 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 JH |
584 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
585 | } | |
586 | else { | |
587 | sv_setsv(sv, PL_compiling.cop_warnings); | |
588 | } | |
d3a7d8c7 | 589 | SvPOK_only(sv); |
4438c4b7 | 590 | } |
46487f74 GS |
591 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
592 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
593 | break; |
594 | case '1': case '2': case '3': case '4': | |
595 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 596 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
597 | I32 s1, t1; |
598 | ||
a863c7d1 MB |
599 | /* |
600 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
601 | * XXX Does the new way break anything? | |
602 | */ | |
603 | paren = atoi(mg->mg_ptr); | |
79072805 | 604 | getparen: |
d9f97599 | 605 | if (paren <= rx->nparens && |
cf93c79d IZ |
606 | (s1 = rx->startp[paren]) != -1 && |
607 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 608 | { |
cf93c79d IZ |
609 | i = t1 - s1; |
610 | s = rx->subbeg + s1; | |
67368f91 | 611 | if (!rx->subbeg) |
b0bd187b GS |
612 | break; |
613 | ||
13f57bf8 | 614 | getrx: |
748a9306 | 615 | if (i >= 0) { |
13f57bf8 | 616 | bool was_tainted; |
3280af22 NIS |
617 | if (PL_tainting) { |
618 | was_tainted = PL_tainted; | |
619 | PL_tainted = FALSE; | |
13f57bf8 | 620 | } |
cf93c79d | 621 | sv_setpvn(sv, s, i); |
7e2040f0 GS |
622 | if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) |
623 | SvUTF8_on(sv); | |
624 | else | |
625 | SvUTF8_off(sv); | |
3280af22 NIS |
626 | if (PL_tainting) |
627 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
628 | break; |
629 | } | |
79072805 | 630 | } |
79072805 | 631 | } |
3280af22 | 632 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
633 | break; |
634 | case '+': | |
3280af22 | 635 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 636 | paren = rx->lastparen; |
a0d0e21e LW |
637 | if (paren) |
638 | goto getparen; | |
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)) { |
cf93c79d IZ |
644 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
645 | i = rx->startp[0]; | |
13f57bf8 | 646 | goto getrx; |
79072805 | 647 | } |
79072805 | 648 | } |
3280af22 | 649 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
650 | break; |
651 | case '\'': | |
3280af22 | 652 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
653 | if (rx->subbeg && rx->endp[0] != -1) { |
654 | s = rx->subbeg + rx->endp[0]; | |
655 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 656 | goto getrx; |
79072805 | 657 | } |
79072805 | 658 | } |
3280af22 | 659 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
660 | break; |
661 | case '.': | |
662 | #ifndef lint | |
3280af22 NIS |
663 | if (GvIO(PL_last_in_gv)) { |
664 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
665 | } |
666 | #endif | |
667 | break; | |
668 | case '?': | |
809a5acc | 669 | { |
809a5acc | 670 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 671 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
672 | LvTARGOFF(sv) = PL_statusvalue; |
673 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 674 | #endif |
809a5acc | 675 | } |
79072805 LW |
676 | break; |
677 | case '^': | |
3280af22 | 678 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
679 | if (s) |
680 | sv_setpv(sv,s); | |
681 | else { | |
3280af22 | 682 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
683 | sv_catpv(sv,"_TOP"); |
684 | } | |
685 | break; | |
686 | case '~': | |
3280af22 | 687 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 688 | if (!s) |
3280af22 | 689 | s = GvENAME(PL_defoutgv); |
79072805 LW |
690 | sv_setpv(sv,s); |
691 | break; | |
692 | #ifndef lint | |
693 | case '=': | |
3280af22 | 694 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
695 | break; |
696 | case '-': | |
3280af22 | 697 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
698 | break; |
699 | case '%': | |
3280af22 | 700 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
701 | break; |
702 | #endif | |
703 | case ':': | |
704 | break; | |
705 | case '/': | |
706 | break; | |
707 | case '[': | |
3280af22 | 708 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
709 | break; |
710 | case '|': | |
3280af22 | 711 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
712 | break; |
713 | case ',': | |
3280af22 | 714 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
715 | break; |
716 | case '\\': | |
3280af22 | 717 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
718 | break; |
719 | case '#': | |
3280af22 | 720 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
721 | break; |
722 | case '!': | |
a5f75d66 | 723 | #ifdef VMS |
65202027 | 724 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 725 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 726 | #else |
88e89b8a | 727 | { |
728 | int saveerrno = errno; | |
65202027 | 729 | sv_setnv(sv, (NV)errno); |
88e89b8a | 730 | #ifdef OS2 |
ed344e4f IZ |
731 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
732 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 733 | else |
a5f75d66 | 734 | #endif |
2304df62 | 735 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 736 | errno = saveerrno; |
737 | } | |
738 | #endif | |
946ec16e | 739 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
740 | break; |
741 | case '<': | |
3280af22 | 742 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
743 | break; |
744 | case '>': | |
3280af22 | 745 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
746 | break; |
747 | case '(': | |
3280af22 | 748 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 749 | #ifdef HAS_GETGROUPS |
785fb66b | 750 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 751 | #endif |
79072805 LW |
752 | goto add_groups; |
753 | case ')': | |
3280af22 | 754 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 755 | #ifdef HAS_GETGROUPS |
785fb66b | 756 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 757 | #endif |
79072805 | 758 | add_groups: |
79072805 | 759 | #ifdef HAS_GETGROUPS |
79072805 | 760 | { |
a0d0e21e | 761 | Groups_t gary[NGROUPS]; |
79072805 | 762 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 763 | while (--i >= 0) |
785fb66b | 764 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
765 | } |
766 | #endif | |
155aba94 | 767 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
768 | break; |
769 | case '*': | |
770 | break; | |
cd39f2b6 | 771 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
772 | case '0': |
773 | break; | |
cd39f2b6 | 774 | #endif |
a863c7d1 MB |
775 | #ifdef USE_THREADS |
776 | case '@': | |
38a03e6e | 777 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
778 | break; |
779 | #endif /* USE_THREADS */ | |
79072805 | 780 | } |
a0d0e21e | 781 | return 0; |
79072805 LW |
782 | } |
783 | ||
784 | int | |
864dbfa3 | 785 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
786 | { |
787 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
788 | ||
789 | if (uf && uf->uf_val) | |
790 | (*uf->uf_val)(uf->uf_index, sv); | |
791 | return 0; | |
792 | } | |
793 | ||
794 | int | |
864dbfa3 | 795 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
796 | { |
797 | register char *s; | |
88e89b8a | 798 | char *ptr; |
5aabfad6 | 799 | STRLEN len, klen; |
a0d0e21e | 800 | I32 i; |
1e422769 | 801 | |
a0d0e21e | 802 | s = SvPV(sv,len); |
5aabfad6 | 803 | ptr = MgPV(mg,klen); |
88e89b8a | 804 | my_setenv(ptr, s); |
1e422769 | 805 | |
a0d0e21e LW |
806 | #ifdef DYNAMIC_ENV_FETCH |
807 | /* We just undefd an environment var. Is a replacement */ | |
808 | /* waiting in the wings? */ | |
809 | if (!len) { | |
5aabfad6 | 810 | SV **valp; |
6b88bc9c | 811 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 812 | s = SvPV(*valp, len); |
a0d0e21e LW |
813 | } |
814 | #endif | |
1e422769 | 815 | |
39e571d4 | 816 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
817 | /* And you'll never guess what the dog had */ |
818 | /* in its mouth... */ | |
3280af22 | 819 | if (PL_tainting) { |
1e422769 | 820 | MgTAINTEDDIR_off(mg); |
821 | #ifdef VMS | |
5aabfad6 | 822 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 823 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
824 | struct stat sbuf; | |
825 | int i = 0, j = 0; | |
826 | ||
827 | do { /* DCL$PATH may be a search list */ | |
828 | while (1) { /* as may dev portion of any element */ | |
829 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
830 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
831 | cando_by_name(S_IWUSR,0,elt) ) { | |
832 | MgTAINTEDDIR_on(mg); | |
833 | return 0; | |
834 | } | |
835 | } | |
836 | if ((cp = strchr(elt, ':')) != Nullch) | |
837 | *cp = '\0'; | |
838 | if (my_trnlnm(elt, eltbuf, j++)) | |
839 | elt = eltbuf; | |
840 | else | |
841 | break; | |
842 | } | |
843 | j = 0; | |
844 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
845 | } | |
846 | #endif /* VMS */ | |
5aabfad6 | 847 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 848 | char *strend = s + len; |
463ee0b2 LW |
849 | |
850 | while (s < strend) { | |
96827780 | 851 | char tmpbuf[256]; |
1e422769 | 852 | struct stat st; |
96827780 | 853 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 854 | s, strend, ':', &i); |
463ee0b2 | 855 | s++; |
96827780 MB |
856 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
857 | || *tmpbuf != '/' | |
c6ed36e1 | 858 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 859 | MgTAINTEDDIR_on(mg); |
1e422769 | 860 | return 0; |
861 | } | |
463ee0b2 | 862 | } |
79072805 LW |
863 | } |
864 | } | |
39e571d4 | 865 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 866 | |
79072805 LW |
867 | return 0; |
868 | } | |
869 | ||
870 | int | |
864dbfa3 | 871 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 872 | { |
2d8e6c8d GS |
873 | STRLEN n_a; |
874 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
875 | return 0; |
876 | } | |
877 | ||
88e89b8a | 878 | int |
864dbfa3 | 879 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 880 | { |
881 | #if defined(VMS) | |
cea2e8a9 | 882 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 883 | #else |
3280af22 | 884 | if (PL_localizing) { |
fb73857a | 885 | HE* entry; |
2d8e6c8d | 886 | STRLEN n_a; |
fb73857a | 887 | magic_clear_all_env(sv,mg); |
888 | hv_iterinit((HV*)sv); | |
155aba94 | 889 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 890 | I32 keylen; |
891 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 892 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 893 | } |
894 | } | |
895 | #endif | |
896 | return 0; | |
897 | } | |
898 | ||
899 | int | |
864dbfa3 | 900 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 901 | { |
72d299db | 902 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 903 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 904 | #else |
7766f137 GS |
905 | # ifdef PERL_IMPLICIT_SYS |
906 | PerlEnv_clearenv(); | |
907 | # else | |
908 | # ifdef WIN32 | |
3e3baf6d TB |
909 | char *envv = GetEnvironmentStrings(); |
910 | char *cur = envv; | |
911 | STRLEN len; | |
912 | while (*cur) { | |
913 | char *end = strchr(cur,'='); | |
914 | if (end && end != cur) { | |
915 | *end = '\0'; | |
916 | my_setenv(cur,Nullch); | |
917 | *end = '='; | |
ac5c734f | 918 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
919 | } |
920 | else if ((len = strlen(cur))) | |
921 | cur += len+1; | |
922 | } | |
923 | FreeEnvironmentStrings(envv); | |
7766f137 | 924 | # else |
48853122 | 925 | #if !defined(MACOS_TRADITIONAL) |
7766f137 | 926 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
927 | I32 i; |
928 | ||
3280af22 | 929 | if (environ == PL_origenviron) |
f2517201 | 930 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
931 | else |
932 | for (i = 0; environ[i]; i++) | |
f2517201 | 933 | safesysfree(environ[i]); |
7766f137 | 934 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 935 | |
66b1d557 HM |
936 | environ[0] = Nullch; |
937 | ||
48853122 | 938 | #endif /* !defined(MACOS_TRADITIONAL) */ |
7766f137 GS |
939 | # endif /* WIN32 */ |
940 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 941 | #endif /* VMS */ |
3e3baf6d | 942 | return 0; |
66b1d557 HM |
943 | } |
944 | ||
945 | int | |
864dbfa3 | 946 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 947 | { |
948 | I32 i; | |
2d8e6c8d | 949 | STRLEN n_a; |
88e89b8a | 950 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 951 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 952 | if (i) { |
22c35a8c GS |
953 | if(PL_psig_ptr[i]) |
954 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 955 | else { |
ff68c719 | 956 | Sighandler_t sigstate = rsignal_state(i); |
957 | ||
88e89b8a | 958 | /* cache state so we don't fetch it again */ |
ff68c719 | 959 | if(sigstate == SIG_IGN) |
88e89b8a | 960 | sv_setpv(sv,"IGNORE"); |
961 | else | |
3280af22 | 962 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 963 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 964 | SvTEMP_off(sv); |
965 | } | |
966 | } | |
967 | return 0; | |
968 | } | |
969 | int | |
864dbfa3 | 970 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 971 | { |
972 | I32 i; | |
2d8e6c8d | 973 | STRLEN n_a; |
88e89b8a | 974 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 975 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 976 | if (i) { |
22c35a8c GS |
977 | if(PL_psig_ptr[i]) { |
978 | SvREFCNT_dec(PL_psig_ptr[i]); | |
979 | PL_psig_ptr[i]=0; | |
88e89b8a | 980 | } |
22c35a8c GS |
981 | if(PL_psig_name[i]) { |
982 | SvREFCNT_dec(PL_psig_name[i]); | |
983 | PL_psig_name[i]=0; | |
88e89b8a | 984 | } |
985 | } | |
986 | return 0; | |
987 | } | |
3d37d572 | 988 | |
85e6fe83 | 989 | int |
864dbfa3 | 990 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
991 | { |
992 | register char *s; | |
993 | I32 i; | |
748a9306 | 994 | SV** svp; |
e72dc28c | 995 | STRLEN len; |
a0d0e21e | 996 | |
e72dc28c | 997 | s = MgPV(mg,len); |
748a9306 LW |
998 | if (*s == '_') { |
999 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1000 | svp = &PL_diehook; |
748a9306 | 1001 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1002 | svp = &PL_warnhook; |
748a9306 | 1003 | else |
cea2e8a9 | 1004 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1005 | i = 0; |
4633a7c4 LW |
1006 | if (*svp) { |
1007 | SvREFCNT_dec(*svp); | |
1008 | *svp = 0; | |
1009 | } | |
748a9306 LW |
1010 | } |
1011 | else { | |
1012 | i = whichsig(s); /* ...no, a brick */ | |
1013 | if (!i) { | |
e476b1b5 | 1014 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1015 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1016 | return 0; |
1017 | } | |
22c35a8c GS |
1018 | SvREFCNT_dec(PL_psig_name[i]); |
1019 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1020 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1021 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1022 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1023 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1024 | } |
a0d0e21e | 1025 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1026 | if (i) |
3280af22 | 1027 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1028 | else |
1029 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1030 | return 0; |
1031 | } | |
e72dc28c | 1032 | s = SvPV_force(sv,len); |
748a9306 LW |
1033 | if (strEQ(s,"IGNORE")) { |
1034 | if (i) | |
ff68c719 | 1035 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1036 | else |
1037 | *svp = 0; | |
1038 | } | |
1039 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1040 | if (i) | |
ff68c719 | 1041 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1042 | else |
1043 | *svp = 0; | |
1044 | } | |
79072805 | 1045 | else { |
5aabfad6 | 1046 | /* |
1047 | * We should warn if HINT_STRICT_REFS, but without | |
1048 | * access to a known hint bit in a known OP, we can't | |
1049 | * tell whether HINT_STRICT_REFS is in force or not. | |
1050 | */ | |
46fc3d4c | 1051 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1052 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1053 | if (i) |
3280af22 | 1054 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1055 | else |
1056 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1057 | } |
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | int | |
864dbfa3 | 1062 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1063 | { |
3280af22 | 1064 | PL_sub_generation++; |
463ee0b2 LW |
1065 | return 0; |
1066 | } | |
1067 | ||
1068 | int | |
864dbfa3 | 1069 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1070 | { |
a0d0e21e | 1071 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1072 | PL_amagic_generation++; |
463ee0b2 | 1073 | |
a0d0e21e LW |
1074 | return 0; |
1075 | } | |
463ee0b2 | 1076 | |
946ec16e | 1077 | int |
864dbfa3 | 1078 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1079 | { |
1080 | HV *hv = (HV*)LvTARG(sv); | |
1081 | HE *entry; | |
1082 | I32 i = 0; | |
1083 | ||
1084 | if (hv) { | |
1085 | (void) hv_iterinit(hv); | |
33c27489 | 1086 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1087 | i = HvKEYS(hv); |
1088 | else { | |
1089 | /*SUPPRESS 560*/ | |
155aba94 | 1090 | while ((entry = hv_iternext(hv))) { |
6ff81951 GS |
1091 | i++; |
1092 | } | |
1093 | } | |
1094 | } | |
1095 | ||
1096 | sv_setiv(sv, (IV)i); | |
1097 | return 0; | |
1098 | } | |
1099 | ||
1100 | int | |
864dbfa3 | 1101 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1102 | { |
1103 | if (LvTARG(sv)) { | |
1104 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1105 | } |
1106 | return 0; | |
93965878 | 1107 | } |
946ec16e | 1108 | |
e336de0d | 1109 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1110 | STATIC int |
cea2e8a9 | 1111 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1112 | { |
1113 | dSP; | |
463ee0b2 | 1114 | |
924508f0 GS |
1115 | PUSHMARK(SP); |
1116 | EXTEND(SP, n); | |
33c27489 | 1117 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1118 | if (n > 1) { |
1119 | if (mg->mg_ptr) { | |
565764a8 | 1120 | if (mg->mg_len >= 0) |
79cb57f6 | 1121 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1122 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1123 | PUSHs((SV*)mg->mg_ptr); |
1124 | } | |
1125 | else if (mg->mg_type == 'p') { | |
565764a8 | 1126 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1127 | } |
1128 | } | |
1129 | if (n > 2) { | |
1130 | PUSHs(val); | |
88e89b8a | 1131 | } |
463ee0b2 LW |
1132 | PUTBACK; |
1133 | ||
864dbfa3 | 1134 | return call_method(meth, flags); |
946ec16e | 1135 | } |
1136 | ||
76e3520e | 1137 | STATIC int |
cea2e8a9 | 1138 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1139 | { |
1140 | dSP; | |
463ee0b2 | 1141 | |
a0d0e21e LW |
1142 | ENTER; |
1143 | SAVETMPS; | |
e788e7d3 | 1144 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1145 | |
33c27489 | 1146 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1147 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1148 | } |
463ee0b2 | 1149 | |
d3acc0f7 | 1150 | POPSTACK; |
a0d0e21e LW |
1151 | FREETMPS; |
1152 | LEAVE; | |
1153 | return 0; | |
1154 | } | |
463ee0b2 | 1155 | |
a0d0e21e | 1156 | int |
864dbfa3 | 1157 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1158 | { |
1159 | magic_methpack(sv,mg,"FETCH"); | |
1160 | if (mg->mg_ptr) | |
1161 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1162 | return 0; |
1163 | } | |
1164 | ||
1165 | int | |
864dbfa3 | 1166 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1167 | { |
1168 | dSP; | |
a60c0954 | 1169 | ENTER; |
e788e7d3 | 1170 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1171 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1172 | POPSTACK; |
a60c0954 | 1173 | LEAVE; |
463ee0b2 LW |
1174 | return 0; |
1175 | } | |
1176 | ||
1177 | int | |
864dbfa3 | 1178 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1179 | { |
a0d0e21e LW |
1180 | return magic_methpack(sv,mg,"DELETE"); |
1181 | } | |
463ee0b2 | 1182 | |
93965878 NIS |
1183 | |
1184 | U32 | |
864dbfa3 | 1185 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 | 1186 | { |
e336de0d | 1187 | dSP; |
93965878 NIS |
1188 | U32 retval = 0; |
1189 | ||
1190 | ENTER; | |
1191 | SAVETMPS; | |
e788e7d3 | 1192 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1193 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1194 | sv = *PL_stack_sp--; |
a60c0954 | 1195 | retval = (U32) SvIV(sv)-1; |
93965878 | 1196 | } |
d3acc0f7 | 1197 | POPSTACK; |
93965878 NIS |
1198 | FREETMPS; |
1199 | LEAVE; | |
1200 | return retval; | |
1201 | } | |
1202 | ||
cea2e8a9 GS |
1203 | int |
1204 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1205 | { |
1206 | dSP; | |
463ee0b2 | 1207 | |
e336de0d | 1208 | ENTER; |
e788e7d3 | 1209 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1210 | PUSHMARK(SP); |
33c27489 | 1211 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1212 | PUTBACK; |
864dbfa3 | 1213 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1214 | POPSTACK; |
a60c0954 | 1215 | LEAVE; |
463ee0b2 LW |
1216 | return 0; |
1217 | } | |
1218 | ||
1219 | int | |
864dbfa3 | 1220 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1221 | { |
463ee0b2 | 1222 | dSP; |
dff6d3cd | 1223 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1224 | |
1225 | ENTER; | |
a0d0e21e | 1226 | SAVETMPS; |
e788e7d3 | 1227 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1228 | PUSHMARK(SP); |
1229 | EXTEND(SP, 2); | |
33c27489 | 1230 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1231 | if (SvOK(key)) |
1232 | PUSHs(key); | |
1233 | PUTBACK; | |
1234 | ||
864dbfa3 | 1235 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1236 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1237 | |
d3acc0f7 | 1238 | POPSTACK; |
a0d0e21e LW |
1239 | FREETMPS; |
1240 | LEAVE; | |
79072805 LW |
1241 | return 0; |
1242 | } | |
1243 | ||
1244 | int | |
864dbfa3 | 1245 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1246 | { |
1247 | return magic_methpack(sv,mg,"EXISTS"); | |
1248 | } | |
1249 | ||
1250 | int | |
864dbfa3 | 1251 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1252 | { |
1253 | OP *o; | |
1254 | I32 i; | |
1255 | GV* gv; | |
1256 | SV** svp; | |
2d8e6c8d | 1257 | STRLEN n_a; |
79072805 | 1258 | |
3280af22 | 1259 | gv = PL_DBline; |
79072805 | 1260 | i = SvTRUE(sv); |
188ea221 | 1261 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1262 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1263 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1264 | o->op_private = i; |
79072805 LW |
1265 | return 0; |
1266 | } | |
1267 | ||
1268 | int | |
864dbfa3 | 1269 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1270 | { |
3280af22 | 1271 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1272 | return 0; |
1273 | } | |
1274 | ||
1275 | int | |
864dbfa3 | 1276 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1277 | { |
3280af22 | 1278 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1279 | return 0; |
1280 | } | |
1281 | ||
1282 | int | |
864dbfa3 | 1283 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1284 | { |
1285 | SV* lsv = LvTARG(sv); | |
1286 | ||
1287 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1288 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1289 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1290 | I32 i = mg->mg_len; |
7e2040f0 | 1291 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1292 | sv_pos_b2u(lsv, &i); |
1293 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1294 | return 0; |
1295 | } | |
1296 | } | |
1297 | (void)SvOK_off(sv); | |
1298 | return 0; | |
1299 | } | |
1300 | ||
1301 | int | |
864dbfa3 | 1302 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1303 | { |
1304 | SV* lsv = LvTARG(sv); | |
1305 | SSize_t pos; | |
1306 | STRLEN len; | |
c00206c8 | 1307 | STRLEN ulen = 0; |
a0d0e21e LW |
1308 | |
1309 | mg = 0; | |
1310 | ||
1311 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1312 | mg = mg_find(lsv, 'g'); | |
1313 | if (!mg) { | |
1314 | if (!SvOK(sv)) | |
1315 | return 0; | |
1316 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1317 | mg = mg_find(lsv, 'g'); | |
1318 | } | |
1319 | else if (!SvOK(sv)) { | |
565764a8 | 1320 | mg->mg_len = -1; |
a0d0e21e LW |
1321 | return 0; |
1322 | } | |
1323 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1324 | ||
c485e607 | 1325 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1326 | |
7e2040f0 | 1327 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1328 | ulen = sv_len_utf8(lsv); |
1329 | if (ulen) | |
1330 | len = ulen; | |
a0ed51b3 LW |
1331 | } |
1332 | ||
a0d0e21e LW |
1333 | if (pos < 0) { |
1334 | pos += len; | |
1335 | if (pos < 0) | |
1336 | pos = 0; | |
1337 | } | |
1338 | else if (pos > len) | |
1339 | pos = len; | |
a0ed51b3 LW |
1340 | |
1341 | if (ulen) { | |
1342 | I32 p = pos; | |
1343 | sv_pos_u2b(lsv, &p, 0); | |
1344 | pos = p; | |
1345 | } | |
1346 | ||
565764a8 | 1347 | mg->mg_len = pos; |
71be2cbc | 1348 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1349 | |
79072805 LW |
1350 | return 0; |
1351 | } | |
1352 | ||
1353 | int | |
864dbfa3 | 1354 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1355 | { |
8646b087 | 1356 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1357 | SvFAKE_off(sv); | |
946ec16e | 1358 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1359 | SvFAKE_on(sv); |
1360 | } | |
1361 | else | |
946ec16e | 1362 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1363 | return 0; |
1364 | } | |
1365 | ||
1366 | int | |
864dbfa3 | 1367 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1368 | { |
1369 | register char *s; | |
1370 | GV* gv; | |
2d8e6c8d | 1371 | STRLEN n_a; |
79072805 LW |
1372 | |
1373 | if (!SvOK(sv)) | |
1374 | return 0; | |
2d8e6c8d | 1375 | s = SvPV(sv, n_a); |
79072805 LW |
1376 | if (*s == '*' && s[1]) |
1377 | s++; | |
85e6fe83 | 1378 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1379 | if (sv == (SV*)gv) |
1380 | return 0; | |
1381 | if (GvGP(sv)) | |
88e89b8a | 1382 | gp_free((GV*)sv); |
79072805 | 1383 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1384 | return 0; |
1385 | } | |
1386 | ||
1387 | int | |
864dbfa3 | 1388 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1389 | { |
1390 | STRLEN len; | |
1391 | SV *lsv = LvTARG(sv); | |
1392 | char *tmps = SvPV(lsv,len); | |
1393 | I32 offs = LvTARGOFF(sv); | |
1394 | I32 rem = LvTARGLEN(sv); | |
1395 | ||
99cafcc8 JH |
1396 | if (SvUTF8(lsv)) |
1397 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1398 | if (offs > len) |
1399 | offs = len; | |
1400 | if (rem + offs > len) | |
1401 | rem = len - offs; | |
1402 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
99cafcc8 | 1403 | if (SvUTF8(lsv)) |
72d299db | 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 | { |
99cafcc8 JH |
1411 | STRLEN len; |
1412 | char *tmps = SvPV(sv, len); | |
1413 | SV *lsv = LvTARG(sv); | |
1414 | I32 lvoff = LvTARGOFF(sv); | |
1415 | I32 lvlen = LvTARGLEN(sv); | |
a8ae6a0b | 1416 | |
0da47da8 | 1417 | if (DO_UTF8(sv)) { |
99cafcc8 JH |
1418 | sv_utf8_upgrade(lsv); |
1419 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1420 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1421 | SvUTF8_on(lsv); | |
1422 | } | |
1423 | else if (SvUTF8(lsv)) { | |
1424 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1425 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); | |
1426 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1427 | Safefree(tmps); | |
0da47da8 JH |
1428 | } |
1429 | else | |
99cafcc8 | 1430 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
0da47da8 | 1431 | |
79072805 LW |
1432 | return 0; |
1433 | } | |
1434 | ||
1435 | int | |
864dbfa3 | 1436 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1437 | { |
565764a8 | 1438 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1439 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1440 | return 0; |
1441 | } | |
1442 | ||
1443 | int | |
864dbfa3 | 1444 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1445 | { |
3280af22 NIS |
1446 | if (PL_localizing) { |
1447 | if (PL_localizing == 1) | |
565764a8 | 1448 | mg->mg_len <<= 1; |
748a9306 | 1449 | else |
565764a8 | 1450 | mg->mg_len >>= 1; |
a0d0e21e | 1451 | } |
3280af22 | 1452 | else if (PL_tainted) |
565764a8 | 1453 | mg->mg_len |= 1; |
748a9306 | 1454 | else |
565764a8 | 1455 | mg->mg_len &= ~1; |
463ee0b2 LW |
1456 | return 0; |
1457 | } | |
1458 | ||
1459 | int | |
864dbfa3 | 1460 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1461 | { |
1462 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1463 | |
1464 | if (!lsv) { | |
155aba94 | 1465 | (void)SvOK_off(sv); |
6ff81951 GS |
1466 | return 0; |
1467 | } | |
6ff81951 | 1468 | |
81e118e0 | 1469 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1470 | return 0; |
1471 | } | |
1472 | ||
1473 | int | |
864dbfa3 | 1474 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1475 | { |
1476 | do_vecset(sv); /* XXX slurp this routine */ | |
1477 | return 0; | |
1478 | } | |
1479 | ||
1480 | int | |
864dbfa3 | 1481 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1482 | { |
71be2cbc | 1483 | SV *targ = Nullsv; |
5f05dabc | 1484 | if (LvTARGLEN(sv)) { |
68dc0745 | 1485 | if (mg->mg_obj) { |
74e13ce4 GS |
1486 | SV *ahv = LvTARG(sv); |
1487 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1488 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1489 | if (he) | |
1490 | targ = HeVAL(he); | |
1491 | } | |
1492 | else { | |
1493 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1494 | if (svp) | |
1495 | targ = *svp; | |
1496 | } | |
68dc0745 | 1497 | } |
1498 | else { | |
3c78fafa | 1499 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1500 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1501 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1502 | } | |
3280af22 | 1503 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1504 | /* somebody else defined it for us */ |
1505 | SvREFCNT_dec(LvTARG(sv)); | |
1506 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1507 | LvTARGLEN(sv) = 0; | |
1508 | SvREFCNT_dec(mg->mg_obj); | |
1509 | mg->mg_obj = Nullsv; | |
1510 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1511 | } | |
5f05dabc | 1512 | } |
71be2cbc | 1513 | else |
1514 | targ = LvTARG(sv); | |
3280af22 | 1515 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1516 | return 0; |
1517 | } | |
1518 | ||
1519 | int | |
864dbfa3 | 1520 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1521 | { |
1522 | if (LvTARGLEN(sv)) | |
68dc0745 | 1523 | vivify_defelem(sv); |
1524 | if (LvTARG(sv)) { | |
5f05dabc | 1525 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1526 | SvSETMAGIC(LvTARG(sv)); |
1527 | } | |
5f05dabc | 1528 | return 0; |
1529 | } | |
1530 | ||
71be2cbc | 1531 | void |
864dbfa3 | 1532 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1533 | { |
74e13ce4 GS |
1534 | MAGIC *mg; |
1535 | SV *value = Nullsv; | |
71be2cbc | 1536 | |
68dc0745 | 1537 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1538 | return; |
68dc0745 | 1539 | if (mg->mg_obj) { |
74e13ce4 | 1540 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1541 | STRLEN n_a; |
74e13ce4 | 1542 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1543 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1544 | if (he) |
1545 | value = HeVAL(he); | |
1546 | } | |
1547 | else { | |
af7f9c15 | 1548 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1549 | if (svp) |
1550 | value = *svp; | |
1551 | } | |
3280af22 | 1552 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1553 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1554 | } |
68dc0745 | 1555 | else { |
1556 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1557 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1558 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1559 | else { | |
1560 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1561 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1562 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1563 | } |
1564 | } | |
3e3baf6d | 1565 | (void)SvREFCNT_inc(value); |
68dc0745 | 1566 | SvREFCNT_dec(LvTARG(sv)); |
1567 | LvTARG(sv) = value; | |
71be2cbc | 1568 | LvTARGLEN(sv) = 0; |
68dc0745 | 1569 | SvREFCNT_dec(mg->mg_obj); |
1570 | mg->mg_obj = Nullsv; | |
1571 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1572 | } |
1573 | ||
1574 | int | |
864dbfa3 | 1575 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1576 | { |
1577 | AV *av = (AV*)mg->mg_obj; | |
1578 | SV **svp = AvARRAY(av); | |
1579 | I32 i = AvFILLp(av); | |
1580 | while (i >= 0) { | |
1581 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1582 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1583 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1584 | /* XXX Should we check that it hasn't changed? */ |
1585 | SvRV(svp[i]) = 0; | |
155aba94 | 1586 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1587 | SvWEAKREF_off(svp[i]); |
1588 | svp[i] = &PL_sv_undef; | |
1589 | } | |
1590 | i--; | |
1591 | } | |
1592 | return 0; | |
1593 | } | |
1594 | ||
1595 | int | |
864dbfa3 | 1596 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1597 | { |
565764a8 | 1598 | mg->mg_len = -1; |
c6496cc7 | 1599 | SvSCREAM_off(sv); |
93a17b20 LW |
1600 | return 0; |
1601 | } | |
1602 | ||
1603 | int | |
864dbfa3 | 1604 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1605 | { |
463ee0b2 | 1606 | sv_unmagic(sv, 'B'); |
79072805 LW |
1607 | SvVALID_off(sv); |
1608 | return 0; | |
1609 | } | |
1610 | ||
1611 | int | |
864dbfa3 | 1612 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1613 | { |
1614 | sv_unmagic(sv, 'f'); | |
1615 | SvCOMPILED_off(sv); | |
1616 | return 0; | |
1617 | } | |
1618 | ||
1619 | int | |
864dbfa3 | 1620 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1621 | { |
1622 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1623 | ||
1624 | if (uf && uf->uf_set) | |
1625 | (*uf->uf_set)(uf->uf_index, sv); | |
1626 | return 0; | |
1627 | } | |
1628 | ||
c277df42 | 1629 | int |
864dbfa3 | 1630 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1631 | { |
1632 | regexp *re = (regexp *)mg->mg_obj; | |
1633 | ReREFCNT_dec(re); | |
1634 | return 0; | |
1635 | } | |
1636 | ||
7a4c00b4 | 1637 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1638 | int |
864dbfa3 | 1639 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1640 | { |
1641 | /* | |
838b5b74 | 1642 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1643 | * and vanished with a faint plop. |
1644 | */ | |
7a4c00b4 | 1645 | if (mg->mg_ptr) { |
1646 | Safefree(mg->mg_ptr); | |
1647 | mg->mg_ptr = NULL; | |
565764a8 | 1648 | mg->mg_len = -1; |
7a4c00b4 | 1649 | } |
bbce6d69 | 1650 | return 0; |
1651 | } | |
7a4c00b4 | 1652 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1653 | |
1654 | int | |
864dbfa3 | 1655 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1656 | { |
1657 | register char *s; | |
1658 | I32 i; | |
8990e307 | 1659 | STRLEN len; |
79072805 | 1660 | switch (*mg->mg_ptr) { |
748a9306 | 1661 | case '\001': /* ^A */ |
3280af22 | 1662 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1663 | break; |
49460fe6 NIS |
1664 | case '\003': /* ^C */ |
1665 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1666 | break; | |
1667 | ||
79072805 | 1668 | case '\004': /* ^D */ |
3280af22 | 1669 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1670 | DEBUG_x(dump_all()); |
1671 | break; | |
28f23441 | 1672 | case '\005': /* ^E */ |
cd39f2b6 | 1673 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1674 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1675 | #else |
cd39f2b6 JH |
1676 | # ifdef VMS |
1677 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1678 | # else |
cd39f2b6 JH |
1679 | # ifdef WIN32 |
1680 | SetLastError( SvIV(sv) ); | |
1681 | # else | |
1682 | # ifndef OS2 | |
f86702cc | 1683 | /* will anyone ever use this? */ |
1684 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1685 | # endif |
048c1ddf IZ |
1686 | # endif |
1687 | # endif | |
22fae026 | 1688 | #endif |
28f23441 | 1689 | break; |
79072805 | 1690 | case '\006': /* ^F */ |
3280af22 | 1691 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1692 | break; |
a0d0e21e | 1693 | case '\010': /* ^H */ |
3280af22 | 1694 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1695 | break; |
9d116dd7 | 1696 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1697 | if (PL_inplace) |
1698 | Safefree(PL_inplace); | |
79072805 | 1699 | if (SvOK(sv)) |
2d8e6c8d | 1700 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1701 | else |
3280af22 | 1702 | PL_inplace = Nullch; |
79072805 | 1703 | break; |
28f23441 | 1704 | case '\017': /* ^O */ |
3280af22 NIS |
1705 | if (PL_osname) |
1706 | Safefree(PL_osname); | |
28f23441 | 1707 | if (SvOK(sv)) |
2d8e6c8d | 1708 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1709 | else |
3280af22 | 1710 | PL_osname = Nullch; |
28f23441 | 1711 | break; |
79072805 | 1712 | case '\020': /* ^P */ |
3280af22 | 1713 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1714 | if (PL_perldb && !PL_DBsingle) |
1715 | init_debugger(); | |
79072805 LW |
1716 | break; |
1717 | case '\024': /* ^T */ | |
88e89b8a | 1718 | #ifdef BIG_TIME |
6b88bc9c | 1719 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1720 | #else |
3280af22 | 1721 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1722 | #endif |
79072805 | 1723 | break; |
46487f74 | 1724 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1725 | if (*(mg->mg_ptr+1) == '\0') { |
1726 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1727 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1728 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) | |
0453d815 | 1729 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1730 | } |
599cee73 | 1731 | } |
6a818117 | 1732 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1733 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1734 | if (!SvPOK(sv) && PL_localizing) { |
1735 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1736 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1737 | break; |
1738 | } | |
55516df5 | 1739 | { |
b5477537 | 1740 | STRLEN len, i; |
d3a7d8c7 | 1741 | int accumulate = 0 ; |
55516df5 | 1742 | int any_fatals = 0 ; |
d3a7d8c7 | 1743 | char * ptr = (char*)SvPV(sv, len) ; |
55516df5 GS |
1744 | for (i = 0 ; i < len ; ++i) { |
1745 | accumulate |= ptr[i] ; | |
1746 | any_fatals |= (ptr[i] & 0xAA) ; | |
1747 | } | |
d3a7d8c7 GS |
1748 | if (!accumulate) |
1749 | PL_compiling.cop_warnings = pWARN_NONE; | |
55516df5 GS |
1750 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1751 | PL_compiling.cop_warnings = pWARN_ALL; | |
1752 | PL_dowarn |= G_WARN_ONCE ; | |
1753 | } | |
d3a7d8c7 GS |
1754 | else { |
1755 | if (specialWARN(PL_compiling.cop_warnings)) | |
1756 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1757 | else | |
1758 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1759 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1760 | PL_dowarn |= G_WARN_ONCE ; | |
1761 | } | |
55516df5 | 1762 | |
d3a7d8c7 | 1763 | } |
4438c4b7 | 1764 | } |
971a9dd3 | 1765 | } |
46487f74 GS |
1766 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1767 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1768 | break; |
1769 | case '.': | |
3280af22 NIS |
1770 | if (PL_localizing) { |
1771 | if (PL_localizing == 1) | |
7766f137 | 1772 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1773 | } |
3280af22 NIS |
1774 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1775 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1776 | break; |
1777 | case '^': | |
3280af22 | 1778 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1779 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1780 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1781 | break; |
1782 | case '~': | |
3280af22 | 1783 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1784 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1785 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1786 | break; |
1787 | case '=': | |
3280af22 | 1788 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1789 | break; |
1790 | case '-': | |
3280af22 NIS |
1791 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1792 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1793 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1794 | break; |
1795 | case '%': | |
3280af22 | 1796 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1797 | break; |
1798 | case '|': | |
4b65379b | 1799 | { |
3280af22 | 1800 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1801 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1802 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1803 | else { | |
1804 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1805 | PerlIO *ofp = IoOFP(io); | |
1806 | if (ofp) | |
1807 | (void)PerlIO_flush(ofp); | |
1808 | IoFLAGS(io) |= IOf_FLUSH; | |
1809 | } | |
1810 | } | |
79072805 LW |
1811 | } |
1812 | break; | |
1813 | case '*': | |
463ee0b2 | 1814 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1815 | PL_multiline = (i != 0); |
79072805 LW |
1816 | break; |
1817 | case '/': | |
3280af22 NIS |
1818 | SvREFCNT_dec(PL_nrs); |
1819 | PL_nrs = newSVsv(sv); | |
1820 | SvREFCNT_dec(PL_rs); | |
1821 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1822 | break; |
1823 | case '\\': | |
3280af22 NIS |
1824 | if (PL_ors) |
1825 | Safefree(PL_ors); | |
009c130f GS |
1826 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
1827 | s = SvPV(sv,PL_orslen); | |
1828 | PL_ors = savepvn(s,PL_orslen); | |
1829 | } | |
e3c19b7b | 1830 | else { |
3280af22 NIS |
1831 | PL_ors = Nullch; |
1832 | PL_orslen = 0; | |
e3c19b7b | 1833 | } |
79072805 LW |
1834 | break; |
1835 | case ',': | |
3280af22 NIS |
1836 | if (PL_ofs) |
1837 | Safefree(PL_ofs); | |
1838 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1839 | break; |
1840 | case '#': | |
3280af22 NIS |
1841 | if (PL_ofmt) |
1842 | Safefree(PL_ofmt); | |
2d8e6c8d | 1843 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1844 | break; |
1845 | case '[': | |
3280af22 | 1846 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1847 | break; |
1848 | case '?': | |
ff0cee69 | 1849 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1850 | if (PL_localizing == 2) { |
1851 | PL_statusvalue = LvTARGOFF(sv); | |
1852 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1853 | } |
1854 | else | |
1855 | #endif | |
1856 | #ifdef VMSISH_STATUS | |
1857 | if (VMSISH_STATUS) | |
1858 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1859 | else | |
1860 | #endif | |
1861 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1862 | break; |
1863 | case '!': | |
78987ded | 1864 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1865 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1866 | break; |
1867 | case '<': | |
3280af22 NIS |
1868 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1869 | if (PL_delaymagic) { | |
1870 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1871 | break; /* don't do magic till later */ |
1872 | } | |
1873 | #ifdef HAS_SETRUID | |
b28d0864 | 1874 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1875 | #else |
1876 | #ifdef HAS_SETREUID | |
3280af22 | 1877 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1878 | #else |
85e6fe83 | 1879 | #ifdef HAS_SETRESUID |
b28d0864 | 1880 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1881 | #else |
b28d0864 NIS |
1882 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1883 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1884 | else { |
d8eceb89 | 1885 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1886 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1887 | } |
79072805 LW |
1888 | #endif |
1889 | #endif | |
85e6fe83 | 1890 | #endif |
d8eceb89 | 1891 | PL_uid = PerlProc_getuid(); |
3280af22 | 1892 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1893 | break; |
1894 | case '>': | |
3280af22 NIS |
1895 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1896 | if (PL_delaymagic) { | |
1897 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1898 | break; /* don't do magic till later */ |
1899 | } | |
1900 | #ifdef HAS_SETEUID | |
3280af22 | 1901 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1902 | #else |
1903 | #ifdef HAS_SETREUID | |
b28d0864 | 1904 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1905 | #else |
1906 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1907 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1908 | #else |
b28d0864 NIS |
1909 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1910 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1911 | else { |
e8ee3774 | 1912 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1913 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1914 | } |
79072805 LW |
1915 | #endif |
1916 | #endif | |
85e6fe83 | 1917 | #endif |
d8eceb89 | 1918 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1919 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1920 | break; |
1921 | case '(': | |
3280af22 NIS |
1922 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1923 | if (PL_delaymagic) { | |
1924 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1925 | break; /* don't do magic till later */ |
1926 | } | |
1927 | #ifdef HAS_SETRGID | |
b28d0864 | 1928 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1929 | #else |
1930 | #ifdef HAS_SETREGID | |
3280af22 | 1931 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1932 | #else |
1933 | #ifdef HAS_SETRESGID | |
b28d0864 | 1934 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1935 | #else |
b28d0864 NIS |
1936 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1937 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1938 | else { |
d8eceb89 | 1939 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 1940 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1941 | } |
79072805 LW |
1942 | #endif |
1943 | #endif | |
85e6fe83 | 1944 | #endif |
d8eceb89 | 1945 | PL_gid = PerlProc_getgid(); |
3280af22 | 1946 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1947 | break; |
1948 | case ')': | |
5cd24f17 | 1949 | #ifdef HAS_SETGROUPS |
1950 | { | |
2d8e6c8d | 1951 | char *p = SvPV(sv, len); |
5cd24f17 | 1952 | Groups_t gary[NGROUPS]; |
1953 | ||
5cd24f17 | 1954 | while (isSPACE(*p)) |
1955 | ++p; | |
2d4389e4 | 1956 | PL_egid = Atol(p); |
5cd24f17 | 1957 | for (i = 0; i < NGROUPS; ++i) { |
1958 | while (*p && !isSPACE(*p)) | |
1959 | ++p; | |
1960 | while (isSPACE(*p)) | |
1961 | ++p; | |
1962 | if (!*p) | |
1963 | break; | |
2d4389e4 | 1964 | gary[i] = Atol(p); |
5cd24f17 | 1965 | } |
8cc95fdb | 1966 | if (i) |
1967 | (void)setgroups(i, gary); | |
5cd24f17 | 1968 | } |
1969 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1970 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1971 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1972 | if (PL_delaymagic) { |
1973 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1974 | break; /* don't do magic till later */ |
1975 | } | |
1976 | #ifdef HAS_SETEGID | |
3280af22 | 1977 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1978 | #else |
1979 | #ifdef HAS_SETREGID | |
b28d0864 | 1980 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1981 | #else |
1982 | #ifdef HAS_SETRESGID | |
b28d0864 | 1983 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1984 | #else |
b28d0864 NIS |
1985 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1986 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1987 | else { |
d8eceb89 | 1988 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 1989 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 1990 | } |
79072805 LW |
1991 | #endif |
1992 | #endif | |
85e6fe83 | 1993 | #endif |
d8eceb89 | 1994 | PL_egid = PerlProc_getegid(); |
3280af22 | 1995 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1996 | break; |
1997 | case ':': | |
2d8e6c8d | 1998 | PL_chopset = SvPV_force(sv,len); |
79072805 | 1999 | break; |
cd39f2b6 | 2000 | #ifndef MACOS_TRADITIONAL |
79072805 | 2001 | case '0': |
f87d2592 GS |
2002 | #ifdef HAS_SETPROCTITLE |
2003 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2004 | * show a string from the process struct and provide | |
2005 | * the setproctitle() routine to manipulate that. */ | |
2006 | { | |
2007 | s = SvPV(sv, len); | |
2008 | # if __FreeBSD_version >= 410001 | |
2009 | /* The leading "-" removes the "perl: " prefix, | |
2010 | * but not the "(perl) suffix from the ps(1) | |
2011 | * output, because that's what ps(1) shows if the | |
2012 | * argv[] is modified. */ | |
2013 | setproctitle("-%s", s, len + 1); | |
2014 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ | |
2015 | /* This doesn't really work if you assume that | |
2016 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2017 | * because in ps(1) output the result will be like | |
2018 | * sprintf("perl: %s (perl)", s) | |
2019 | * I guess this is a security feature: | |
2020 | * one (a user process) cannot get rid of the original name. | |
2021 | * --jhi */ | |
2022 | setproctitle("%s", s); | |
2023 | # endif | |
2024 | } | |
2025 | #endif | |
3280af22 NIS |
2026 | if (!PL_origalen) { |
2027 | s = PL_origargv[0]; | |
79072805 LW |
2028 | s += strlen(s); |
2029 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2030 | for (i = 1; i < PL_origargc; i++) { |
2031 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2032 | #ifdef OS2 |
6b88bc9c | 2033 | || PL_origargv[i] == s + 2 |
fb73857a | 2034 | #endif |
2035 | ) | |
379c4362 GS |
2036 | { |
2037 | ++s; | |
2038 | s += strlen(s); /* this one is ok too */ | |
2039 | } | |
fb73857a | 2040 | else |
2041 | break; | |
79072805 | 2042 | } |
bbce6d69 | 2043 | /* can grab env area too? */ |
3280af22 | 2044 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2045 | #ifdef OS2 |
6b88bc9c | 2046 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 2047 | #endif |
2048 | )) { | |
66b1d557 | 2049 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2050 | /* force copy of environment */ |
3280af22 | 2051 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2052 | if (PL_origenviron[i] == s + 1) { |
2053 | ++s; | |
2054 | s += strlen(s); | |
2055 | } | |
fb73857a | 2056 | else |
2057 | break; | |
79072805 | 2058 | } |
3280af22 | 2059 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2060 | } |
a0d0e21e | 2061 | s = SvPV_force(sv,len); |
8990e307 | 2062 | i = len; |
3280af22 NIS |
2063 | if (i >= PL_origalen) { |
2064 | i = PL_origalen; | |
fb73857a | 2065 | /* don't allow system to limit $0 seen by script */ |
2066 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2067 | Copy(s, PL_origargv[0], i, char); |
2068 | s = PL_origargv[0]+i; | |
fb73857a | 2069 | *s = '\0'; |
79072805 LW |
2070 | } |
2071 | else { | |
3280af22 NIS |
2072 | Copy(s, PL_origargv[0], i, char); |
2073 | s = PL_origargv[0]+i; | |
79072805 | 2074 | *s++ = '\0'; |
3280af22 | 2075 | while (++i < PL_origalen) |
8990e307 | 2076 | *s++ = ' '; |
3280af22 NIS |
2077 | s = PL_origargv[0]+i; |
2078 | for (i = 1; i < PL_origargc; i++) | |
2079 | PL_origargv[i] = Nullch; | |
79072805 LW |
2080 | } |
2081 | break; | |
cd39f2b6 | 2082 | #endif |
a863c7d1 MB |
2083 | #ifdef USE_THREADS |
2084 | case '@': | |
38a03e6e | 2085 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2086 | break; |
2087 | #endif /* USE_THREADS */ | |
79072805 LW |
2088 | } |
2089 | return 0; | |
2090 | } | |
2091 | ||
f93b4edd MB |
2092 | #ifdef USE_THREADS |
2093 | int | |
864dbfa3 | 2094 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2095 | { |
b900a521 JH |
2096 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2097 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2098 | PTR2UV(thr), PTR2UV(sv));) | |
f93b4edd | 2099 | if (MgOWNER(mg)) |
cea2e8a9 | 2100 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2101 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2102 | COND_DESTROY(MgCONDP(mg)); | |
2103 | return 0; | |
2104 | } | |
2105 | #endif /* USE_THREADS */ | |
2106 | ||
79072805 | 2107 | I32 |
864dbfa3 | 2108 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2109 | { |
2110 | register char **sigv; | |
2111 | ||
22c35a8c | 2112 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2113 | if (strEQ(sig,*sigv)) |
22c35a8c | 2114 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2115 | #ifdef SIGCLD |
2116 | if (strEQ(sig,"CHLD")) | |
2117 | return SIGCLD; | |
2118 | #endif | |
2119 | #ifdef SIGCHLD | |
2120 | if (strEQ(sig,"CLD")) | |
2121 | return SIGCHLD; | |
2122 | #endif | |
2123 | return 0; | |
2124 | } | |
2125 | ||
84902520 TB |
2126 | static SV* sig_sv; |
2127 | ||
ecfc5424 | 2128 | Signal_t |
cea2e8a9 | 2129 | Perl_sighandler(int sig) |
79072805 | 2130 | { |
71d280e3 GS |
2131 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2132 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ | |
2133 | #else | |
cea2e8a9 | 2134 | dTHX; |
71d280e3 | 2135 | #endif |
79072805 | 2136 | dSP; |
00d579c5 | 2137 | GV *gv = Nullgv; |
a0d0e21e | 2138 | HV *st; |
3280af22 | 2139 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2140 | CV *cv = Nullcv; |
533c011a | 2141 | OP *myop = PL_op; |
84902520 | 2142 | U32 flags = 0; |
155aba94 | 2143 | I32 o_save_i = PL_savestack_ix; |
3280af22 | 2144 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2145 | |
2146 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
2147 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ | |
2148 | #endif | |
84902520 | 2149 | |
3280af22 | 2150 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2151 | flags |= 1; |
3280af22 | 2152 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2153 | flags |= 4; |
3280af22 | 2154 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2155 | flags |= 8; |
3280af22 | 2156 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2157 | flags |= 16; |
2158 | ||
22c35a8c | 2159 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2160 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2161 | PL_sig_name[sig]); |
ff0cee69 | 2162 | |
84902520 TB |
2163 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2164 | infinity, so we fix 4 (in fact 5): */ | |
2165 | if (flags & 1) { | |
3280af22 NIS |
2166 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2167 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2168 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2169 | } |
2170 | if (flags & 4) | |
3280af22 | 2171 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2172 | if (flags & 8) { |
3280af22 NIS |
2173 | PL_retstack_ix++; |
2174 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2175 | } |
2176 | if (flags & 16) | |
3280af22 | 2177 | PL_scopestack_ix += 1; |
84902520 | 2178 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2179 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2180 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2181 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2182 | |
a0d0e21e | 2183 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2184 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2185 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2186 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2187 | : ((cv && CvGV(cv)) |
2188 | ? GvENAME(CvGV(cv)) | |
2189 | : "__ANON__"))); | |
2190 | goto cleanup; | |
79072805 LW |
2191 | } |
2192 | ||
22c35a8c GS |
2193 | if(PL_psig_name[sig]) { |
2194 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2195 | flags |= 64; |
2196 | sig_sv = sv; | |
2197 | } else { | |
ff0cee69 | 2198 | sv = sv_newmortal(); |
22c35a8c | 2199 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2200 | } |
e336de0d | 2201 | |
e788e7d3 | 2202 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2203 | PUSHMARK(SP); |
79072805 | 2204 | PUSHs(sv); |
79072805 | 2205 | PUTBACK; |
a0d0e21e | 2206 | |
864dbfa3 | 2207 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2208 | |
d3acc0f7 | 2209 | POPSTACK; |
00d579c5 | 2210 | cleanup: |
84902520 | 2211 | if (flags & 1) |
3280af22 | 2212 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2213 | if (flags & 4) |
3280af22 | 2214 | PL_markstack_ptr--; |
84902520 | 2215 | if (flags & 8) |
3280af22 | 2216 | PL_retstack_ix--; |
84902520 | 2217 | if (flags & 16) |
3280af22 | 2218 | PL_scopestack_ix -= 1; |
84902520 TB |
2219 | if (flags & 64) |
2220 | SvREFCNT_dec(sv); | |
533c011a | 2221 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2222 | |
3280af22 NIS |
2223 | PL_Sv = tSv; /* Restore global temporaries. */ |
2224 | PL_Xpv = tXpv; | |
79072805 LW |
2225 | return; |
2226 | } | |
4e35701f NIS |
2227 | |
2228 | ||
51371543 | 2229 | #ifdef PERL_OBJECT |
51371543 GS |
2230 | #include "XSUB.h" |
2231 | #endif | |
2232 | ||
2233 | static void | |
2234 | restore_magic(pTHXo_ void *p) | |
2235 | { | |
48944bdf | 2236 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2237 | SV* sv = mgs->mgs_sv; |
2238 | ||
2239 | if (!sv) | |
2240 | return; | |
2241 | ||
2242 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2243 | { | |
2244 | if (mgs->mgs_flags) | |
2245 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2246 | else | |
2247 | mg_magical(sv); | |
2248 | if (SvGMAGICAL(sv)) | |
2249 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2250 | } | |
2251 | ||
2252 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2253 | ||
2254 | /* If we're still on top of the stack, pop us off. (That condition | |
2255 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2256 | * if it's being called via leave_scope.) | |
2257 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2258 | * may leave alloc gunk on the savestack, and some code | |
2259 | * (e.g. sighandler) doesn't expect that... | |
2260 | */ | |
2261 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2262 | { | |
2263 | I32 popval = SSPOPINT; | |
c76ac1ee | 2264 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2265 | PL_savestack_ix -= 2; |
2266 | popval = SSPOPINT; | |
2267 | assert(popval == SAVEt_ALLOC); | |
2268 | popval = SSPOPINT; | |
2269 | PL_savestack_ix -= popval; | |
2270 | } | |
2271 | ||
2272 | } | |
2273 | ||
2274 | static void | |
2275 | unwind_handler_stack(pTHXo_ void *p) | |
2276 | { | |
51371543 GS |
2277 | U32 flags = *(U32*)p; |
2278 | ||
2279 | if (flags & 1) | |
2280 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2281 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2282 | if (flags & 64) | |
2283 | SvREFCNT_dec(sig_sv); | |
2284 | } |