Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
3818b22b | 3 | * Copyright (c) 1991-2000, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
864dbfa3 | 16 | #define PERL_IN_MG_C |
79072805 LW |
17 | #include "perl.h" |
18 | ||
e6d9441c | 19 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
20 | #ifdef I_UNISTD |
21 | # include <unistd.h> | |
22 | #endif | |
a0d0e21e | 23 | |
5cd24f17 | 24 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
25 | # ifndef NGROUPS |
26 | # define NGROUPS 32 | |
27 | # endif | |
28 | #endif | |
29 | ||
51371543 GS |
30 | static void restore_magic(pTHXo_ void *p); |
31 | static void unwind_handler_stack(pTHXo_ void *p); | |
32 | ||
c07a80fd | 33 | /* |
34 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
35 | */ | |
36 | ||
37 | struct magic_state { | |
38 | SV* mgs_sv; | |
39 | U32 mgs_flags; | |
455ece5e | 40 | I32 mgs_ss_ix; |
c07a80fd | 41 | }; |
455ece5e | 42 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
43 | |
44 | STATIC void | |
cea2e8a9 | 45 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 46 | { |
46124e9e | 47 | dTHR; |
455ece5e | 48 | MGS* mgs; |
c07a80fd | 49 | assert(SvMAGICAL(sv)); |
50 | ||
c76ac1ee | 51 | SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix); |
455ece5e AD |
52 | |
53 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 54 | mgs->mgs_sv = sv; |
55 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 56 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 57 | |
58 | SvMAGICAL_off(sv); | |
59 | SvREADONLY_off(sv); | |
60 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 61 | } |
62 | ||
954c1994 GS |
63 | /* |
64 | =for apidoc mg_magical | |
65 | ||
66 | Turns on the magical status of an SV. See C<sv_magic>. | |
67 | ||
68 | =cut | |
69 | */ | |
70 | ||
8990e307 | 71 | void |
864dbfa3 | 72 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
73 | { |
74 | MAGIC* mg; | |
75 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
76 | MGVTBL* vtbl = mg->mg_virtual; | |
77 | if (vtbl) { | |
2b260de0 | 78 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
79 | SvGMAGICAL_on(sv); |
80 | if (vtbl->svt_set) | |
81 | SvSMAGICAL_on(sv); | |
2b260de0 | 82 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
83 | SvRMAGICAL_on(sv); |
84 | } | |
85 | } | |
86 | } | |
87 | ||
954c1994 GS |
88 | /* |
89 | =for apidoc mg_get | |
90 | ||
91 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
92 | ||
93 | =cut | |
94 | */ | |
95 | ||
79072805 | 96 | int |
864dbfa3 | 97 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 98 | { |
46124e9e | 99 | dTHR; |
455ece5e | 100 | I32 mgs_ix; |
79072805 | 101 | MAGIC* mg; |
c6496cc7 | 102 | MAGIC** mgp; |
760ac839 | 103 | int mgp_valid = 0; |
463ee0b2 | 104 | |
455ece5e AD |
105 | mgs_ix = SSNEW(sizeof(MGS)); |
106 | save_magic(mgs_ix, sv); | |
463ee0b2 | 107 | |
c6496cc7 | 108 | mgp = &SvMAGIC(sv); |
109 | while ((mg = *mgp) != 0) { | |
79072805 | 110 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 | 111 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 112 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 | 113 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
114 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
115 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 116 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 117 | } |
c6496cc7 | 118 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 119 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 120 | mgp = &mg->mg_moremagic; |
760ac839 LW |
121 | mgp_valid = 1; |
122 | } | |
123 | else | |
124 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 125 | } |
463ee0b2 | 126 | |
51371543 | 127 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
128 | return 0; |
129 | } | |
130 | ||
954c1994 GS |
131 | /* |
132 | =for apidoc mg_set | |
133 | ||
134 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
135 | ||
136 | =cut | |
137 | */ | |
138 | ||
79072805 | 139 | int |
864dbfa3 | 140 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 141 | { |
46124e9e | 142 | dTHR; |
455ece5e | 143 | I32 mgs_ix; |
79072805 | 144 | MAGIC* mg; |
463ee0b2 LW |
145 | MAGIC* nextmg; |
146 | ||
455ece5e AD |
147 | mgs_ix = SSNEW(sizeof(MGS)); |
148 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
149 | |
150 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 151 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 152 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
153 | if (mg->mg_flags & MGf_GSKIP) { |
154 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 155 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 156 | } |
2b260de0 | 157 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 158 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 159 | } |
463ee0b2 | 160 | |
51371543 | 161 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
162 | return 0; |
163 | } | |
164 | ||
954c1994 GS |
165 | /* |
166 | =for apidoc mg_length | |
167 | ||
168 | Report on the SV's length. See C<sv_magic>. | |
169 | ||
170 | =cut | |
171 | */ | |
172 | ||
79072805 | 173 | U32 |
864dbfa3 | 174 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
175 | { |
176 | MAGIC* mg; | |
748a9306 | 177 | char *junk; |
463ee0b2 | 178 | STRLEN len; |
463ee0b2 | 179 | |
79072805 LW |
180 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
181 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 182 | if (vtbl && vtbl->svt_len) { |
455ece5e | 183 | I32 mgs_ix; |
48e43a1c | 184 | |
455ece5e AD |
185 | mgs_ix = SSNEW(sizeof(MGS)); |
186 | save_magic(mgs_ix, sv); | |
a0d0e21e | 187 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 188 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 189 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 LW |
190 | return len; |
191 | } | |
192 | } | |
193 | ||
748a9306 | 194 | junk = SvPV(sv, len); |
463ee0b2 | 195 | return len; |
79072805 LW |
196 | } |
197 | ||
93965878 | 198 | I32 |
864dbfa3 | 199 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
200 | { |
201 | MAGIC* mg; | |
202 | I32 len; | |
203 | ||
204 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
205 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 206 | if (vtbl && vtbl->svt_len) { |
455ece5e AD |
207 | I32 mgs_ix; |
208 | ||
209 | mgs_ix = SSNEW(sizeof(MGS)); | |
210 | save_magic(mgs_ix, sv); | |
93965878 | 211 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 212 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 213 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 NIS |
214 | return len; |
215 | } | |
216 | } | |
217 | ||
218 | switch(SvTYPE(sv)) { | |
219 | case SVt_PVAV: | |
220 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
221 | return len; | |
222 | case SVt_PVHV: | |
223 | /* FIXME */ | |
224 | default: | |
cea2e8a9 | 225 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
226 | break; |
227 | } | |
228 | return 0; | |
229 | } | |
230 | ||
954c1994 GS |
231 | /* |
232 | =for apidoc mg_clear | |
233 | ||
234 | Clear something magical that the SV represents. See C<sv_magic>. | |
235 | ||
236 | =cut | |
237 | */ | |
238 | ||
79072805 | 239 | int |
864dbfa3 | 240 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 241 | { |
455ece5e | 242 | I32 mgs_ix; |
79072805 | 243 | MAGIC* mg; |
463ee0b2 | 244 | |
455ece5e AD |
245 | mgs_ix = SSNEW(sizeof(MGS)); |
246 | save_magic(mgs_ix, sv); | |
463ee0b2 | 247 | |
79072805 LW |
248 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
249 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
250 | /* omit GSKIP -- never set here */ |
251 | ||
2b260de0 | 252 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 253 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 254 | } |
463ee0b2 | 255 | |
51371543 | 256 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
257 | return 0; |
258 | } | |
259 | ||
954c1994 GS |
260 | /* |
261 | =for apidoc mg_find | |
262 | ||
263 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
264 | ||
265 | =cut | |
266 | */ | |
267 | ||
93a17b20 | 268 | MAGIC* |
864dbfa3 | 269 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
270 | { |
271 | MAGIC* mg; | |
93a17b20 LW |
272 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
273 | if (mg->mg_type == type) | |
274 | return mg; | |
275 | } | |
276 | return 0; | |
277 | } | |
278 | ||
954c1994 GS |
279 | /* |
280 | =for apidoc mg_copy | |
281 | ||
282 | Copies the magic from one SV to another. See C<sv_magic>. | |
283 | ||
284 | =cut | |
285 | */ | |
286 | ||
79072805 | 287 | int |
864dbfa3 | 288 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 289 | { |
463ee0b2 | 290 | int count = 0; |
79072805 | 291 | MAGIC* mg; |
463ee0b2 LW |
292 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
293 | if (isUPPER(mg->mg_type)) { | |
33c27489 GS |
294 | sv_magic(nsv, |
295 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj, | |
296 | toLOWER(mg->mg_type), key, klen); | |
463ee0b2 | 297 | count++; |
79072805 | 298 | } |
79072805 | 299 | } |
463ee0b2 | 300 | return count; |
79072805 LW |
301 | } |
302 | ||
954c1994 GS |
303 | /* |
304 | =for apidoc mg_free | |
305 | ||
306 | Free any magic storage used by the SV. See C<sv_magic>. | |
307 | ||
308 | =cut | |
309 | */ | |
310 | ||
79072805 | 311 | int |
864dbfa3 | 312 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
313 | { |
314 | MAGIC* mg; | |
315 | MAGIC* moremagic; | |
316 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
317 | MGVTBL* vtbl = mg->mg_virtual; | |
318 | moremagic = mg->mg_moremagic; | |
2b260de0 | 319 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 320 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
93a17b20 | 321 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 322 | if (mg->mg_len >= 0) |
88e89b8a | 323 | Safefree(mg->mg_ptr); |
565764a8 | 324 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 325 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 326 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 327 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
328 | Safefree(mg); |
329 | } | |
330 | SvMAGIC(sv) = 0; | |
331 | return 0; | |
332 | } | |
333 | ||
334 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
335 | #include <signal.h> | |
336 | #endif | |
337 | ||
942e002e | 338 | U32 |
864dbfa3 | 339 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
340 | { |
341 | dTHR; | |
6cef1e77 | 342 | register REGEXP *rx; |
6cef1e77 | 343 | |
8f580fb8 IZ |
344 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
345 | if (mg->mg_obj) /* @+ */ | |
346 | return rx->nparens; | |
347 | else /* @- */ | |
348 | return rx->lastparen; | |
349 | } | |
350 | ||
942e002e | 351 | return (U32)-1; |
6cef1e77 IZ |
352 | } |
353 | ||
354 | int | |
864dbfa3 | 355 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
356 | { |
357 | dTHR; | |
358 | register I32 paren; | |
cf93c79d | 359 | register I32 s; |
6cef1e77 IZ |
360 | register I32 i; |
361 | register REGEXP *rx; | |
cf93c79d | 362 | I32 t; |
6cef1e77 IZ |
363 | |
364 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
365 | paren = mg->mg_len; | |
366 | if (paren < 0) | |
367 | return 0; | |
368 | if (paren <= rx->nparens && | |
cf93c79d IZ |
369 | (s = rx->startp[paren]) != -1 && |
370 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
371 | { |
372 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 373 | i = t; |
6cef1e77 | 374 | else /* @- */ |
cf93c79d | 375 | i = s; |
6cef1e77 IZ |
376 | sv_setiv(sv,i); |
377 | } | |
378 | } | |
379 | return 0; | |
380 | } | |
381 | ||
93a17b20 | 382 | U32 |
864dbfa3 | 383 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 384 | { |
a863c7d1 | 385 | dTHR; |
93a17b20 | 386 | register I32 paren; |
93a17b20 | 387 | register I32 i; |
d9f97599 | 388 | register REGEXP *rx; |
a197cbdd | 389 | I32 s1, t1; |
93a17b20 LW |
390 | |
391 | switch (*mg->mg_ptr) { | |
392 | case '1': case '2': case '3': case '4': | |
393 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 394 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d | 395 | |
93a17b20 LW |
396 | paren = atoi(mg->mg_ptr); |
397 | getparen: | |
d9f97599 | 398 | if (paren <= rx->nparens && |
cf93c79d IZ |
399 | (s1 = rx->startp[paren]) != -1 && |
400 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 401 | { |
cf93c79d | 402 | i = t1 - s1; |
a197cbdd GS |
403 | getlen: |
404 | if (i > 0 && (PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { | |
405 | char *s = rx->subbeg + s1; | |
406 | char *send = rx->subbeg + t1; | |
407 | i = 0; | |
408 | while (s < send) { | |
409 | s += UTF8SKIP(s); | |
410 | i++; | |
411 | } | |
412 | } | |
71be2cbc | 413 | if (i >= 0) |
93a17b20 | 414 | return i; |
93a17b20 | 415 | } |
93a17b20 | 416 | } |
748a9306 | 417 | return 0; |
93a17b20 | 418 | case '+': |
3280af22 | 419 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 420 | paren = rx->lastparen; |
13f57bf8 CS |
421 | if (paren) |
422 | goto getparen; | |
93a17b20 | 423 | } |
748a9306 | 424 | return 0; |
93a17b20 | 425 | case '`': |
3280af22 | 426 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
427 | if (rx->startp[0] != -1) { |
428 | i = rx->startp[0]; | |
a197cbdd GS |
429 | if (i > 0) { |
430 | s1 = 0; | |
431 | t1 = i; | |
432 | goto getlen; | |
433 | } | |
93a17b20 | 434 | } |
93a17b20 | 435 | } |
748a9306 | 436 | return 0; |
93a17b20 | 437 | case '\'': |
3280af22 | 438 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
439 | if (rx->endp[0] != -1) { |
440 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
441 | if (i > 0) { |
442 | s1 = rx->endp[0]; | |
443 | t1 = rx->sublen; | |
444 | goto getlen; | |
445 | } | |
93a17b20 | 446 | } |
93a17b20 | 447 | } |
748a9306 | 448 | return 0; |
93a17b20 | 449 | case ',': |
3280af22 | 450 | return (STRLEN)PL_ofslen; |
93a17b20 | 451 | case '\\': |
3280af22 | 452 | return (STRLEN)PL_orslen; |
93a17b20 LW |
453 | } |
454 | magic_get(sv,mg); | |
2d8e6c8d GS |
455 | if (!SvPOK(sv) && SvNIOK(sv)) { |
456 | STRLEN n_a; | |
457 | sv_2pv(sv, &n_a); | |
458 | } | |
93a17b20 LW |
459 | if (SvPOK(sv)) |
460 | return SvCUR(sv); | |
461 | return 0; | |
462 | } | |
463 | ||
79072805 | 464 | int |
864dbfa3 | 465 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 466 | { |
a863c7d1 | 467 | dTHR; |
79072805 LW |
468 | register I32 paren; |
469 | register char *s; | |
470 | register I32 i; | |
d9f97599 | 471 | register REGEXP *rx; |
79072805 LW |
472 | |
473 | switch (*mg->mg_ptr) { | |
748a9306 | 474 | case '\001': /* ^A */ |
3280af22 | 475 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 476 | break; |
49460fe6 NIS |
477 | case '\003': /* ^C */ |
478 | sv_setiv(sv, (IV)PL_minus_c); | |
479 | break; | |
480 | ||
79072805 | 481 | case '\004': /* ^D */ |
3280af22 | 482 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
d056ab3f GS |
483 | #if defined(YYDEBUG) && defined(DEBUGGING) |
484 | PL_yydebug = (PL_debug & 1); | |
485 | #endif | |
79072805 | 486 | break; |
28f23441 | 487 | case '\005': /* ^E */ |
cd39f2b6 JH |
488 | #ifdef MACOS_TRADITIONAL |
489 | { | |
490 | char msg[256]; | |
491 | ||
bf4acbe4 GS |
492 | sv_setnv(sv,(double)gMacPerl_OSErr); |
493 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
cd39f2b6 JH |
494 | } |
495 | #else | |
28f23441 | 496 | #ifdef VMS |
497 | { | |
498 | # include <descrip.h> | |
499 | # include <starlet.h> | |
500 | char msg[255]; | |
501 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 502 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 503 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
504 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
505 | else | |
506 | sv_setpv(sv,""); | |
507 | } | |
508 | #else | |
88e89b8a | 509 | #ifdef OS2 |
fb73857a | 510 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 511 | sv_setnv(sv, (NV)errno); |
fb73857a | 512 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
513 | } else { | |
017f25f1 IZ |
514 | if (errno != errno_isOS2) { |
515 | int tmp = _syserrno(); | |
516 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
517 | Perl_rc = tmp; | |
518 | } | |
65202027 | 519 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 520 | sv_setpv(sv, os2error(Perl_rc)); |
521 | } | |
88e89b8a | 522 | #else |
22fae026 TM |
523 | #ifdef WIN32 |
524 | { | |
525 | DWORD dwErr = GetLastError(); | |
65202027 | 526 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 527 | if (dwErr) |
76e3520e | 528 | { |
0cb96387 | 529 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 530 | } |
22fae026 TM |
531 | else |
532 | sv_setpv(sv, ""); | |
533 | SetLastError(dwErr); | |
534 | } | |
535 | #else | |
65202027 | 536 | sv_setnv(sv, (NV)errno); |
28f23441 | 537 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
538 | #endif | |
88e89b8a | 539 | #endif |
22fae026 | 540 | #endif |
cd39f2b6 | 541 | #endif |
946ec16e | 542 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 543 | break; |
79072805 | 544 | case '\006': /* ^F */ |
3280af22 | 545 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 546 | break; |
a0d0e21e | 547 | case '\010': /* ^H */ |
3280af22 | 548 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 549 | break; |
9d116dd7 | 550 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
551 | if (PL_inplace) |
552 | sv_setpv(sv, PL_inplace); | |
79072805 | 553 | else |
3280af22 | 554 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 555 | break; |
28f23441 | 556 | case '\017': /* ^O */ |
3280af22 | 557 | sv_setpv(sv, PL_osname); |
28f23441 | 558 | break; |
79072805 | 559 | case '\020': /* ^P */ |
3280af22 | 560 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 561 | break; |
fb73857a | 562 | case '\023': /* ^S */ |
d58bf5aa MB |
563 | { |
564 | dTHR; | |
3280af22 | 565 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 566 | (void)SvOK_off(sv); |
3280af22 | 567 | else if (PL_in_eval) |
d58bf5aa MB |
568 | sv_setiv(sv, 1); |
569 | else | |
570 | sv_setiv(sv, 0); | |
571 | } | |
fb73857a | 572 | break; |
79072805 | 573 | case '\024': /* ^T */ |
88e89b8a | 574 | #ifdef BIG_TIME |
6b88bc9c | 575 | sv_setnv(sv, PL_basetime); |
88e89b8a | 576 | #else |
3280af22 | 577 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 578 | #endif |
79072805 | 579 | break; |
46487f74 | 580 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
581 | if (*(mg->mg_ptr+1) == '\0') |
582 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 583 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
584 | if (PL_compiling.cop_warnings == pWARN_NONE || |
585 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
586 | { |
587 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
588 | } | |
d3a7d8c7 | 589 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 JH |
590 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
591 | } | |
592 | else { | |
593 | sv_setsv(sv, PL_compiling.cop_warnings); | |
594 | } | |
d3a7d8c7 | 595 | SvPOK_only(sv); |
4438c4b7 | 596 | } |
46487f74 GS |
597 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
598 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
599 | break; |
600 | case '1': case '2': case '3': case '4': | |
601 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 602 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
603 | I32 s1, t1; |
604 | ||
a863c7d1 MB |
605 | /* |
606 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
607 | * XXX Does the new way break anything? | |
608 | */ | |
609 | paren = atoi(mg->mg_ptr); | |
79072805 | 610 | getparen: |
d9f97599 | 611 | if (paren <= rx->nparens && |
cf93c79d IZ |
612 | (s1 = rx->startp[paren]) != -1 && |
613 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 614 | { |
cf93c79d IZ |
615 | i = t1 - s1; |
616 | s = rx->subbeg + s1; | |
01ec43d0 | 617 | if (!rx->subbeg) |
c2e66d9e GS |
618 | break; |
619 | ||
13f57bf8 | 620 | getrx: |
748a9306 | 621 | if (i >= 0) { |
13f57bf8 | 622 | bool was_tainted; |
3280af22 NIS |
623 | if (PL_tainting) { |
624 | was_tainted = PL_tainted; | |
625 | PL_tainted = FALSE; | |
13f57bf8 | 626 | } |
cf93c79d | 627 | sv_setpvn(sv, s, i); |
7e2040f0 GS |
628 | if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) |
629 | SvUTF8_on(sv); | |
630 | else | |
631 | SvUTF8_off(sv); | |
3280af22 NIS |
632 | if (PL_tainting) |
633 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
634 | break; |
635 | } | |
79072805 | 636 | } |
79072805 | 637 | } |
3280af22 | 638 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
639 | break; |
640 | case '+': | |
3280af22 | 641 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 642 | paren = rx->lastparen; |
a0d0e21e LW |
643 | if (paren) |
644 | goto getparen; | |
79072805 | 645 | } |
3280af22 | 646 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
647 | break; |
648 | case '`': | |
3280af22 | 649 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
650 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
651 | i = rx->startp[0]; | |
13f57bf8 | 652 | goto getrx; |
79072805 | 653 | } |
79072805 | 654 | } |
3280af22 | 655 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
656 | break; |
657 | case '\'': | |
3280af22 | 658 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
659 | if (rx->subbeg && rx->endp[0] != -1) { |
660 | s = rx->subbeg + rx->endp[0]; | |
661 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 662 | goto getrx; |
79072805 | 663 | } |
79072805 | 664 | } |
3280af22 | 665 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
666 | break; |
667 | case '.': | |
668 | #ifndef lint | |
3280af22 NIS |
669 | if (GvIO(PL_last_in_gv)) { |
670 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
671 | } |
672 | #endif | |
673 | break; | |
674 | case '?': | |
809a5acc | 675 | { |
809a5acc | 676 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 677 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
678 | LvTARGOFF(sv) = PL_statusvalue; |
679 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 680 | #endif |
809a5acc | 681 | } |
79072805 LW |
682 | break; |
683 | case '^': | |
3280af22 | 684 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
685 | if (s) |
686 | sv_setpv(sv,s); | |
687 | else { | |
3280af22 | 688 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
689 | sv_catpv(sv,"_TOP"); |
690 | } | |
691 | break; | |
692 | case '~': | |
3280af22 | 693 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 694 | if (!s) |
3280af22 | 695 | s = GvENAME(PL_defoutgv); |
79072805 LW |
696 | sv_setpv(sv,s); |
697 | break; | |
698 | #ifndef lint | |
699 | case '=': | |
3280af22 | 700 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
701 | break; |
702 | case '-': | |
3280af22 | 703 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
704 | break; |
705 | case '%': | |
3280af22 | 706 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
707 | break; |
708 | #endif | |
709 | case ':': | |
710 | break; | |
711 | case '/': | |
712 | break; | |
713 | case '[': | |
3280af22 | 714 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
715 | break; |
716 | case '|': | |
3280af22 | 717 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
718 | break; |
719 | case ',': | |
3280af22 | 720 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
721 | break; |
722 | case '\\': | |
3280af22 | 723 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
724 | break; |
725 | case '#': | |
3280af22 | 726 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
727 | break; |
728 | case '!': | |
a5f75d66 | 729 | #ifdef VMS |
65202027 | 730 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 731 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 732 | #else |
88e89b8a | 733 | { |
734 | int saveerrno = errno; | |
65202027 | 735 | sv_setnv(sv, (NV)errno); |
88e89b8a | 736 | #ifdef OS2 |
ed344e4f IZ |
737 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
738 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 739 | else |
a5f75d66 | 740 | #endif |
2304df62 | 741 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 742 | errno = saveerrno; |
743 | } | |
744 | #endif | |
946ec16e | 745 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
746 | break; |
747 | case '<': | |
3280af22 | 748 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
749 | break; |
750 | case '>': | |
3280af22 | 751 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
752 | break; |
753 | case '(': | |
3280af22 | 754 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 755 | #ifdef HAS_GETGROUPS |
785fb66b | 756 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 757 | #endif |
79072805 LW |
758 | goto add_groups; |
759 | case ')': | |
3280af22 | 760 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 761 | #ifdef HAS_GETGROUPS |
785fb66b | 762 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 763 | #endif |
79072805 | 764 | add_groups: |
79072805 | 765 | #ifdef HAS_GETGROUPS |
79072805 | 766 | { |
a0d0e21e | 767 | Groups_t gary[NGROUPS]; |
79072805 | 768 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 769 | while (--i >= 0) |
785fb66b | 770 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
771 | } |
772 | #endif | |
155aba94 | 773 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
774 | break; |
775 | case '*': | |
776 | break; | |
cd39f2b6 | 777 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
778 | case '0': |
779 | break; | |
cd39f2b6 | 780 | #endif |
a863c7d1 MB |
781 | #ifdef USE_THREADS |
782 | case '@': | |
38a03e6e | 783 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
784 | break; |
785 | #endif /* USE_THREADS */ | |
79072805 | 786 | } |
a0d0e21e | 787 | return 0; |
79072805 LW |
788 | } |
789 | ||
790 | int | |
864dbfa3 | 791 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
792 | { |
793 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
794 | ||
795 | if (uf && uf->uf_val) | |
796 | (*uf->uf_val)(uf->uf_index, sv); | |
797 | return 0; | |
798 | } | |
799 | ||
800 | int | |
864dbfa3 | 801 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
802 | { |
803 | register char *s; | |
88e89b8a | 804 | char *ptr; |
5aabfad6 | 805 | STRLEN len, klen; |
a0d0e21e | 806 | I32 i; |
1e422769 | 807 | |
a0d0e21e | 808 | s = SvPV(sv,len); |
5aabfad6 | 809 | ptr = MgPV(mg,klen); |
88e89b8a | 810 | my_setenv(ptr, s); |
1e422769 | 811 | |
a0d0e21e LW |
812 | #ifdef DYNAMIC_ENV_FETCH |
813 | /* We just undefd an environment var. Is a replacement */ | |
814 | /* waiting in the wings? */ | |
815 | if (!len) { | |
5aabfad6 | 816 | SV **valp; |
6b88bc9c | 817 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 818 | s = SvPV(*valp, len); |
a0d0e21e LW |
819 | } |
820 | #endif | |
1e422769 | 821 | |
39e571d4 | 822 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
823 | /* And you'll never guess what the dog had */ |
824 | /* in its mouth... */ | |
3280af22 | 825 | if (PL_tainting) { |
1e422769 | 826 | MgTAINTEDDIR_off(mg); |
827 | #ifdef VMS | |
5aabfad6 | 828 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 829 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
830 | struct stat sbuf; | |
831 | int i = 0, j = 0; | |
832 | ||
833 | do { /* DCL$PATH may be a search list */ | |
834 | while (1) { /* as may dev portion of any element */ | |
835 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
836 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
837 | cando_by_name(S_IWUSR,0,elt) ) { | |
838 | MgTAINTEDDIR_on(mg); | |
839 | return 0; | |
840 | } | |
841 | } | |
842 | if ((cp = strchr(elt, ':')) != Nullch) | |
843 | *cp = '\0'; | |
844 | if (my_trnlnm(elt, eltbuf, j++)) | |
845 | elt = eltbuf; | |
846 | else | |
847 | break; | |
848 | } | |
849 | j = 0; | |
850 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
851 | } | |
852 | #endif /* VMS */ | |
5aabfad6 | 853 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 854 | char *strend = s + len; |
463ee0b2 LW |
855 | |
856 | while (s < strend) { | |
96827780 | 857 | char tmpbuf[256]; |
1e422769 | 858 | struct stat st; |
96827780 | 859 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 860 | s, strend, ':', &i); |
463ee0b2 | 861 | s++; |
96827780 MB |
862 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
863 | || *tmpbuf != '/' | |
c6ed36e1 | 864 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 865 | MgTAINTEDDIR_on(mg); |
1e422769 | 866 | return 0; |
867 | } | |
463ee0b2 | 868 | } |
79072805 LW |
869 | } |
870 | } | |
39e571d4 | 871 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 872 | |
79072805 LW |
873 | return 0; |
874 | } | |
875 | ||
876 | int | |
864dbfa3 | 877 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 878 | { |
2d8e6c8d GS |
879 | STRLEN n_a; |
880 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
881 | return 0; |
882 | } | |
883 | ||
88e89b8a | 884 | int |
864dbfa3 | 885 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 886 | { |
887 | #if defined(VMS) | |
cea2e8a9 | 888 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 889 | #else |
d58bf5aa | 890 | dTHR; |
3280af22 | 891 | if (PL_localizing) { |
fb73857a | 892 | HE* entry; |
2d8e6c8d | 893 | STRLEN n_a; |
fb73857a | 894 | magic_clear_all_env(sv,mg); |
895 | hv_iterinit((HV*)sv); | |
155aba94 | 896 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 897 | I32 keylen; |
898 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 899 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 900 | } |
901 | } | |
902 | #endif | |
903 | return 0; | |
904 | } | |
905 | ||
906 | int | |
864dbfa3 | 907 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 908 | { |
3e3baf6d | 909 | #if defined(VMS) |
cea2e8a9 | 910 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 911 | #else |
7766f137 GS |
912 | # ifdef PERL_IMPLICIT_SYS |
913 | PerlEnv_clearenv(); | |
914 | # else | |
915 | # ifdef WIN32 | |
3e3baf6d TB |
916 | char *envv = GetEnvironmentStrings(); |
917 | char *cur = envv; | |
918 | STRLEN len; | |
919 | while (*cur) { | |
920 | char *end = strchr(cur,'='); | |
921 | if (end && end != cur) { | |
922 | *end = '\0'; | |
923 | my_setenv(cur,Nullch); | |
924 | *end = '='; | |
ac5c734f | 925 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
926 | } |
927 | else if ((len = strlen(cur))) | |
928 | cur += len+1; | |
929 | } | |
930 | FreeEnvironmentStrings(envv); | |
7766f137 | 931 | # else |
d308986b | 932 | # ifdef __CYGWIN__ |
2c2d71f5 JH |
933 | I32 i; |
934 | for (i = 0; environ[i]; i++) | |
d702ae42 | 935 | safesysfree(environ[i]); |
7766f137 GS |
936 | # else |
937 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
938 | I32 i; |
939 | ||
3280af22 | 940 | if (environ == PL_origenviron) |
f2517201 | 941 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
942 | else |
943 | for (i = 0; environ[i]; i++) | |
f2517201 | 944 | safesysfree(environ[i]); |
7766f137 | 945 | # endif /* PERL_USE_SAFE_PUTENV */ |
d308986b | 946 | # endif /* __CYGWIN__ */ |
f2517201 | 947 | |
66b1d557 HM |
948 | environ[0] = Nullch; |
949 | ||
7766f137 GS |
950 | # endif /* WIN32 */ |
951 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 952 | #endif /* VMS */ |
3e3baf6d | 953 | return 0; |
66b1d557 HM |
954 | } |
955 | ||
64ca3a65 | 956 | #ifndef PERL_MICRO |
66b1d557 | 957 | int |
864dbfa3 | 958 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 959 | { |
960 | I32 i; | |
2d8e6c8d | 961 | STRLEN n_a; |
88e89b8a | 962 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 963 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 964 | if (i) { |
22c35a8c GS |
965 | if(PL_psig_ptr[i]) |
966 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 967 | else { |
ff68c719 | 968 | Sighandler_t sigstate = rsignal_state(i); |
969 | ||
88e89b8a | 970 | /* cache state so we don't fetch it again */ |
ff68c719 | 971 | if(sigstate == SIG_IGN) |
88e89b8a | 972 | sv_setpv(sv,"IGNORE"); |
973 | else | |
3280af22 | 974 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 975 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 976 | SvTEMP_off(sv); |
977 | } | |
978 | } | |
979 | return 0; | |
980 | } | |
981 | int | |
864dbfa3 | 982 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 983 | { |
984 | I32 i; | |
2d8e6c8d | 985 | STRLEN n_a; |
88e89b8a | 986 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 987 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 988 | if (i) { |
22c35a8c GS |
989 | if(PL_psig_ptr[i]) { |
990 | SvREFCNT_dec(PL_psig_ptr[i]); | |
991 | PL_psig_ptr[i]=0; | |
88e89b8a | 992 | } |
22c35a8c GS |
993 | if(PL_psig_name[i]) { |
994 | SvREFCNT_dec(PL_psig_name[i]); | |
995 | PL_psig_name[i]=0; | |
88e89b8a | 996 | } |
997 | } | |
998 | return 0; | |
999 | } | |
3d37d572 | 1000 | |
85e6fe83 | 1001 | int |
864dbfa3 | 1002 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1003 | { |
11343788 | 1004 | dTHR; |
79072805 LW |
1005 | register char *s; |
1006 | I32 i; | |
748a9306 | 1007 | SV** svp; |
e72dc28c | 1008 | STRLEN len; |
a0d0e21e | 1009 | |
e72dc28c | 1010 | s = MgPV(mg,len); |
748a9306 LW |
1011 | if (*s == '_') { |
1012 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1013 | svp = &PL_diehook; |
748a9306 | 1014 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1015 | svp = &PL_warnhook; |
748a9306 | 1016 | else |
cea2e8a9 | 1017 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1018 | i = 0; |
4633a7c4 LW |
1019 | if (*svp) { |
1020 | SvREFCNT_dec(*svp); | |
1021 | *svp = 0; | |
1022 | } | |
748a9306 LW |
1023 | } |
1024 | else { | |
1025 | i = whichsig(s); /* ...no, a brick */ | |
1026 | if (!i) { | |
e476b1b5 | 1027 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1028 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1029 | return 0; |
1030 | } | |
22c35a8c GS |
1031 | SvREFCNT_dec(PL_psig_name[i]); |
1032 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1033 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1034 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1035 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1036 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1037 | } |
a0d0e21e | 1038 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1039 | if (i) |
3280af22 | 1040 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1041 | else |
1042 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1043 | return 0; |
1044 | } | |
e72dc28c | 1045 | s = SvPV_force(sv,len); |
748a9306 LW |
1046 | if (strEQ(s,"IGNORE")) { |
1047 | if (i) | |
ff68c719 | 1048 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1049 | else |
1050 | *svp = 0; | |
1051 | } | |
1052 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1053 | if (i) | |
ff68c719 | 1054 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1055 | else |
1056 | *svp = 0; | |
1057 | } | |
79072805 | 1058 | else { |
5aabfad6 | 1059 | /* |
1060 | * We should warn if HINT_STRICT_REFS, but without | |
1061 | * access to a known hint bit in a known OP, we can't | |
1062 | * tell whether HINT_STRICT_REFS is in force or not. | |
1063 | */ | |
46fc3d4c | 1064 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1065 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1066 | if (i) |
3280af22 | 1067 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1068 | else |
1069 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1070 | } |
1071 | return 0; | |
1072 | } | |
64ca3a65 | 1073 | #endif /* !PERL_MICRO */ |
79072805 LW |
1074 | |
1075 | int | |
864dbfa3 | 1076 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1077 | { |
3280af22 | 1078 | PL_sub_generation++; |
463ee0b2 LW |
1079 | return 0; |
1080 | } | |
1081 | ||
1082 | int | |
864dbfa3 | 1083 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1084 | { |
a0d0e21e | 1085 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1086 | PL_amagic_generation++; |
463ee0b2 | 1087 | |
a0d0e21e LW |
1088 | return 0; |
1089 | } | |
463ee0b2 | 1090 | |
946ec16e | 1091 | int |
864dbfa3 | 1092 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1093 | { |
1094 | HV *hv = (HV*)LvTARG(sv); | |
1095 | HE *entry; | |
1096 | I32 i = 0; | |
1097 | ||
1098 | if (hv) { | |
1099 | (void) hv_iterinit(hv); | |
33c27489 | 1100 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1101 | i = HvKEYS(hv); |
1102 | else { | |
1103 | /*SUPPRESS 560*/ | |
155aba94 | 1104 | while ((entry = hv_iternext(hv))) { |
6ff81951 GS |
1105 | i++; |
1106 | } | |
1107 | } | |
1108 | } | |
1109 | ||
1110 | sv_setiv(sv, (IV)i); | |
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | int | |
864dbfa3 | 1115 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1116 | { |
1117 | if (LvTARG(sv)) { | |
1118 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1119 | } |
1120 | return 0; | |
93965878 | 1121 | } |
946ec16e | 1122 | |
e336de0d | 1123 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1124 | STATIC int |
cea2e8a9 | 1125 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1126 | { |
1127 | dSP; | |
463ee0b2 | 1128 | |
924508f0 GS |
1129 | PUSHMARK(SP); |
1130 | EXTEND(SP, n); | |
33c27489 | 1131 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1132 | if (n > 1) { |
1133 | if (mg->mg_ptr) { | |
565764a8 | 1134 | if (mg->mg_len >= 0) |
79cb57f6 | 1135 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1136 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1137 | PUSHs((SV*)mg->mg_ptr); |
1138 | } | |
1139 | else if (mg->mg_type == 'p') { | |
565764a8 | 1140 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1141 | } |
1142 | } | |
1143 | if (n > 2) { | |
1144 | PUSHs(val); | |
88e89b8a | 1145 | } |
463ee0b2 LW |
1146 | PUTBACK; |
1147 | ||
864dbfa3 | 1148 | return call_method(meth, flags); |
946ec16e | 1149 | } |
1150 | ||
76e3520e | 1151 | STATIC int |
cea2e8a9 | 1152 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1153 | { |
1154 | dSP; | |
463ee0b2 | 1155 | |
a0d0e21e LW |
1156 | ENTER; |
1157 | SAVETMPS; | |
e788e7d3 | 1158 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1159 | |
33c27489 | 1160 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1161 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1162 | } |
463ee0b2 | 1163 | |
d3acc0f7 | 1164 | POPSTACK; |
a0d0e21e LW |
1165 | FREETMPS; |
1166 | LEAVE; | |
1167 | return 0; | |
1168 | } | |
463ee0b2 | 1169 | |
a0d0e21e | 1170 | int |
864dbfa3 | 1171 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1172 | { |
1173 | magic_methpack(sv,mg,"FETCH"); | |
1174 | if (mg->mg_ptr) | |
1175 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1176 | return 0; |
1177 | } | |
1178 | ||
1179 | int | |
864dbfa3 | 1180 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1181 | { |
1182 | dSP; | |
a60c0954 | 1183 | ENTER; |
e788e7d3 | 1184 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1185 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1186 | POPSTACK; |
a60c0954 | 1187 | LEAVE; |
463ee0b2 LW |
1188 | return 0; |
1189 | } | |
1190 | ||
1191 | int | |
864dbfa3 | 1192 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1193 | { |
a0d0e21e LW |
1194 | return magic_methpack(sv,mg,"DELETE"); |
1195 | } | |
463ee0b2 | 1196 | |
93965878 NIS |
1197 | |
1198 | U32 | |
864dbfa3 | 1199 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 | 1200 | { |
e336de0d | 1201 | dSP; |
93965878 NIS |
1202 | U32 retval = 0; |
1203 | ||
1204 | ENTER; | |
1205 | SAVETMPS; | |
e788e7d3 | 1206 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1207 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1208 | sv = *PL_stack_sp--; |
a60c0954 | 1209 | retval = (U32) SvIV(sv)-1; |
93965878 | 1210 | } |
d3acc0f7 | 1211 | POPSTACK; |
93965878 NIS |
1212 | FREETMPS; |
1213 | LEAVE; | |
1214 | return retval; | |
1215 | } | |
1216 | ||
cea2e8a9 GS |
1217 | int |
1218 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1219 | { |
1220 | dSP; | |
463ee0b2 | 1221 | |
e336de0d | 1222 | ENTER; |
e788e7d3 | 1223 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1224 | PUSHMARK(SP); |
33c27489 | 1225 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1226 | PUTBACK; |
864dbfa3 | 1227 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1228 | POPSTACK; |
a60c0954 | 1229 | LEAVE; |
463ee0b2 LW |
1230 | return 0; |
1231 | } | |
1232 | ||
1233 | int | |
864dbfa3 | 1234 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1235 | { |
463ee0b2 | 1236 | dSP; |
dff6d3cd | 1237 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1238 | |
1239 | ENTER; | |
a0d0e21e | 1240 | SAVETMPS; |
e788e7d3 | 1241 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1242 | PUSHMARK(SP); |
1243 | EXTEND(SP, 2); | |
33c27489 | 1244 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1245 | if (SvOK(key)) |
1246 | PUSHs(key); | |
1247 | PUTBACK; | |
1248 | ||
864dbfa3 | 1249 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1250 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1251 | |
d3acc0f7 | 1252 | POPSTACK; |
a0d0e21e LW |
1253 | FREETMPS; |
1254 | LEAVE; | |
79072805 LW |
1255 | return 0; |
1256 | } | |
1257 | ||
1258 | int | |
864dbfa3 | 1259 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1260 | { |
1261 | return magic_methpack(sv,mg,"EXISTS"); | |
1262 | } | |
1263 | ||
1264 | int | |
864dbfa3 | 1265 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1266 | { |
11343788 | 1267 | dTHR; |
79072805 LW |
1268 | OP *o; |
1269 | I32 i; | |
1270 | GV* gv; | |
1271 | SV** svp; | |
2d8e6c8d | 1272 | STRLEN n_a; |
79072805 | 1273 | |
3280af22 | 1274 | gv = PL_DBline; |
79072805 | 1275 | i = SvTRUE(sv); |
188ea221 | 1276 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1277 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1278 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1279 | o->op_private = i; |
0453d815 PM |
1280 | else if (ckWARN_d(WARN_INTERNAL)) |
1281 | Perl_warner(aTHX_ WARN_INTERNAL, "Can't break at that line\n"); | |
79072805 LW |
1282 | return 0; |
1283 | } | |
1284 | ||
1285 | int | |
864dbfa3 | 1286 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1287 | { |
0f15f207 | 1288 | dTHR; |
3280af22 | 1289 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1290 | return 0; |
1291 | } | |
1292 | ||
1293 | int | |
864dbfa3 | 1294 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1295 | { |
0f15f207 | 1296 | dTHR; |
3280af22 | 1297 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1298 | return 0; |
1299 | } | |
1300 | ||
1301 | int | |
864dbfa3 | 1302 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1303 | { |
1304 | SV* lsv = LvTARG(sv); | |
1305 | ||
1306 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1307 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1308 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1309 | dTHR; |
a0ed51b3 | 1310 | I32 i = mg->mg_len; |
7e2040f0 | 1311 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1312 | sv_pos_b2u(lsv, &i); |
1313 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1314 | return 0; |
1315 | } | |
1316 | } | |
1317 | (void)SvOK_off(sv); | |
1318 | return 0; | |
1319 | } | |
1320 | ||
1321 | int | |
864dbfa3 | 1322 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1323 | { |
1324 | SV* lsv = LvTARG(sv); | |
1325 | SSize_t pos; | |
1326 | STRLEN len; | |
c00206c8 | 1327 | STRLEN ulen = 0; |
c485e607 | 1328 | dTHR; |
a0d0e21e LW |
1329 | |
1330 | mg = 0; | |
1331 | ||
1332 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1333 | mg = mg_find(lsv, 'g'); | |
1334 | if (!mg) { | |
1335 | if (!SvOK(sv)) | |
1336 | return 0; | |
1337 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1338 | mg = mg_find(lsv, 'g'); | |
1339 | } | |
1340 | else if (!SvOK(sv)) { | |
565764a8 | 1341 | mg->mg_len = -1; |
a0d0e21e LW |
1342 | return 0; |
1343 | } | |
1344 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1345 | ||
c485e607 | 1346 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1347 | |
7e2040f0 | 1348 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1349 | ulen = sv_len_utf8(lsv); |
1350 | if (ulen) | |
1351 | len = ulen; | |
a0ed51b3 LW |
1352 | } |
1353 | ||
a0d0e21e LW |
1354 | if (pos < 0) { |
1355 | pos += len; | |
1356 | if (pos < 0) | |
1357 | pos = 0; | |
1358 | } | |
1359 | else if (pos > len) | |
1360 | pos = len; | |
a0ed51b3 LW |
1361 | |
1362 | if (ulen) { | |
1363 | I32 p = pos; | |
1364 | sv_pos_u2b(lsv, &p, 0); | |
1365 | pos = p; | |
1366 | } | |
1367 | ||
565764a8 | 1368 | mg->mg_len = pos; |
71be2cbc | 1369 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1370 | |
79072805 LW |
1371 | return 0; |
1372 | } | |
1373 | ||
1374 | int | |
864dbfa3 | 1375 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1376 | { |
8646b087 | 1377 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1378 | SvFAKE_off(sv); | |
946ec16e | 1379 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1380 | SvFAKE_on(sv); |
1381 | } | |
1382 | else | |
946ec16e | 1383 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1384 | return 0; |
1385 | } | |
1386 | ||
1387 | int | |
864dbfa3 | 1388 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1389 | { |
1390 | register char *s; | |
1391 | GV* gv; | |
2d8e6c8d | 1392 | STRLEN n_a; |
79072805 LW |
1393 | |
1394 | if (!SvOK(sv)) | |
1395 | return 0; | |
2d8e6c8d | 1396 | s = SvPV(sv, n_a); |
79072805 LW |
1397 | if (*s == '*' && s[1]) |
1398 | s++; | |
85e6fe83 | 1399 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1400 | if (sv == (SV*)gv) |
1401 | return 0; | |
1402 | if (GvGP(sv)) | |
88e89b8a | 1403 | gp_free((GV*)sv); |
79072805 | 1404 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1405 | return 0; |
1406 | } | |
1407 | ||
1408 | int | |
864dbfa3 | 1409 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1410 | { |
1411 | STRLEN len; | |
1412 | SV *lsv = LvTARG(sv); | |
1413 | char *tmps = SvPV(lsv,len); | |
1414 | I32 offs = LvTARGOFF(sv); | |
1415 | I32 rem = LvTARGLEN(sv); | |
1416 | ||
1417 | if (offs > len) | |
1418 | offs = len; | |
1419 | if (rem + offs > len) | |
1420 | rem = len - offs; | |
1421 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1422 | return 0; | |
1423 | } | |
1424 | ||
1425 | int | |
864dbfa3 | 1426 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1427 | { |
8990e307 LW |
1428 | STRLEN len; |
1429 | char *tmps = SvPV(sv,len); | |
1430 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1431 | return 0; |
1432 | } | |
1433 | ||
1434 | int | |
864dbfa3 | 1435 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1436 | { |
a863c7d1 | 1437 | dTHR; |
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 | { |
11343788 | 1446 | dTHR; |
3280af22 NIS |
1447 | if (PL_localizing) { |
1448 | if (PL_localizing == 1) | |
565764a8 | 1449 | mg->mg_len <<= 1; |
748a9306 | 1450 | else |
565764a8 | 1451 | mg->mg_len >>= 1; |
a0d0e21e | 1452 | } |
3280af22 | 1453 | else if (PL_tainted) |
565764a8 | 1454 | mg->mg_len |= 1; |
748a9306 | 1455 | else |
565764a8 | 1456 | mg->mg_len &= ~1; |
463ee0b2 LW |
1457 | return 0; |
1458 | } | |
1459 | ||
1460 | int | |
864dbfa3 | 1461 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1462 | { |
1463 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1464 | |
1465 | if (!lsv) { | |
155aba94 | 1466 | (void)SvOK_off(sv); |
6ff81951 GS |
1467 | return 0; |
1468 | } | |
6ff81951 | 1469 | |
81e118e0 | 1470 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1471 | return 0; |
1472 | } | |
1473 | ||
1474 | int | |
864dbfa3 | 1475 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1476 | { |
1477 | do_vecset(sv); /* XXX slurp this routine */ | |
1478 | return 0; | |
1479 | } | |
1480 | ||
1481 | int | |
864dbfa3 | 1482 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1483 | { |
71be2cbc | 1484 | SV *targ = Nullsv; |
5f05dabc | 1485 | if (LvTARGLEN(sv)) { |
68dc0745 | 1486 | if (mg->mg_obj) { |
74e13ce4 GS |
1487 | SV *ahv = LvTARG(sv); |
1488 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1489 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1490 | if (he) | |
1491 | targ = HeVAL(he); | |
1492 | } | |
1493 | else { | |
1494 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1495 | if (svp) | |
1496 | targ = *svp; | |
1497 | } | |
68dc0745 | 1498 | } |
1499 | else { | |
3c78fafa | 1500 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1501 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1502 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1503 | } | |
3280af22 | 1504 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1505 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1506 | /* somebody else defined it for us */ |
1507 | SvREFCNT_dec(LvTARG(sv)); | |
1508 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1509 | LvTARGLEN(sv) = 0; | |
1510 | SvREFCNT_dec(mg->mg_obj); | |
1511 | mg->mg_obj = Nullsv; | |
1512 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1513 | } | |
5f05dabc | 1514 | } |
71be2cbc | 1515 | else |
1516 | targ = LvTARG(sv); | |
3280af22 | 1517 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1518 | return 0; |
1519 | } | |
1520 | ||
1521 | int | |
864dbfa3 | 1522 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1523 | { |
1524 | if (LvTARGLEN(sv)) | |
68dc0745 | 1525 | vivify_defelem(sv); |
1526 | if (LvTARG(sv)) { | |
5f05dabc | 1527 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1528 | SvSETMAGIC(LvTARG(sv)); |
1529 | } | |
5f05dabc | 1530 | return 0; |
1531 | } | |
1532 | ||
71be2cbc | 1533 | void |
864dbfa3 | 1534 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1535 | { |
e858de61 | 1536 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1537 | MAGIC *mg; |
1538 | SV *value = Nullsv; | |
71be2cbc | 1539 | |
68dc0745 | 1540 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1541 | return; |
68dc0745 | 1542 | if (mg->mg_obj) { |
74e13ce4 | 1543 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1544 | STRLEN n_a; |
74e13ce4 | 1545 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1546 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1547 | if (he) |
1548 | value = HeVAL(he); | |
1549 | } | |
1550 | else { | |
af7f9c15 | 1551 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1552 | if (svp) |
1553 | value = *svp; | |
1554 | } | |
3280af22 | 1555 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1556 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1557 | } |
68dc0745 | 1558 | else { |
1559 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1560 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1561 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1562 | else { | |
1563 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1564 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1565 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1566 | } |
1567 | } | |
3e3baf6d | 1568 | (void)SvREFCNT_inc(value); |
68dc0745 | 1569 | SvREFCNT_dec(LvTARG(sv)); |
1570 | LvTARG(sv) = value; | |
71be2cbc | 1571 | LvTARGLEN(sv) = 0; |
68dc0745 | 1572 | SvREFCNT_dec(mg->mg_obj); |
1573 | mg->mg_obj = Nullsv; | |
1574 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1575 | } |
1576 | ||
1577 | int | |
864dbfa3 | 1578 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1579 | { |
1580 | AV *av = (AV*)mg->mg_obj; | |
1581 | SV **svp = AvARRAY(av); | |
1582 | I32 i = AvFILLp(av); | |
1583 | while (i >= 0) { | |
1584 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1585 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1586 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1587 | /* XXX Should we check that it hasn't changed? */ |
1588 | SvRV(svp[i]) = 0; | |
155aba94 | 1589 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1590 | SvWEAKREF_off(svp[i]); |
1591 | svp[i] = &PL_sv_undef; | |
1592 | } | |
1593 | i--; | |
1594 | } | |
1595 | return 0; | |
1596 | } | |
1597 | ||
1598 | int | |
864dbfa3 | 1599 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1600 | { |
565764a8 | 1601 | mg->mg_len = -1; |
c6496cc7 | 1602 | SvSCREAM_off(sv); |
93a17b20 LW |
1603 | return 0; |
1604 | } | |
1605 | ||
1606 | int | |
864dbfa3 | 1607 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1608 | { |
463ee0b2 | 1609 | sv_unmagic(sv, 'B'); |
79072805 LW |
1610 | SvVALID_off(sv); |
1611 | return 0; | |
1612 | } | |
1613 | ||
1614 | int | |
864dbfa3 | 1615 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1616 | { |
1617 | sv_unmagic(sv, 'f'); | |
1618 | SvCOMPILED_off(sv); | |
1619 | return 0; | |
1620 | } | |
1621 | ||
1622 | int | |
864dbfa3 | 1623 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1624 | { |
1625 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1626 | ||
1627 | if (uf && uf->uf_set) | |
1628 | (*uf->uf_set)(uf->uf_index, sv); | |
1629 | return 0; | |
1630 | } | |
1631 | ||
c277df42 | 1632 | int |
864dbfa3 | 1633 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1634 | { |
1635 | regexp *re = (regexp *)mg->mg_obj; | |
1636 | ReREFCNT_dec(re); | |
1637 | return 0; | |
1638 | } | |
1639 | ||
7a4c00b4 | 1640 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1641 | int |
864dbfa3 | 1642 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1643 | { |
1644 | /* | |
838b5b74 | 1645 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1646 | * and vanished with a faint plop. |
1647 | */ | |
7a4c00b4 | 1648 | if (mg->mg_ptr) { |
1649 | Safefree(mg->mg_ptr); | |
1650 | mg->mg_ptr = NULL; | |
565764a8 | 1651 | mg->mg_len = -1; |
7a4c00b4 | 1652 | } |
bbce6d69 | 1653 | return 0; |
1654 | } | |
7a4c00b4 | 1655 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1656 | |
1657 | int | |
864dbfa3 | 1658 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1659 | { |
11343788 | 1660 | dTHR; |
79072805 LW |
1661 | register char *s; |
1662 | I32 i; | |
8990e307 | 1663 | STRLEN len; |
79072805 | 1664 | switch (*mg->mg_ptr) { |
748a9306 | 1665 | case '\001': /* ^A */ |
3280af22 | 1666 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1667 | break; |
49460fe6 NIS |
1668 | case '\003': /* ^C */ |
1669 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1670 | break; | |
1671 | ||
79072805 | 1672 | case '\004': /* ^D */ |
3280af22 | 1673 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1674 | DEBUG_x(dump_all()); |
1675 | break; | |
28f23441 | 1676 | case '\005': /* ^E */ |
cd39f2b6 | 1677 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1678 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1679 | #else |
cd39f2b6 JH |
1680 | # ifdef VMS |
1681 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1682 | # else |
cd39f2b6 JH |
1683 | # ifdef WIN32 |
1684 | SetLastError( SvIV(sv) ); | |
1685 | # else | |
1686 | # ifndef OS2 | |
f86702cc | 1687 | /* will anyone ever use this? */ |
1688 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1689 | # endif |
048c1ddf IZ |
1690 | # endif |
1691 | # endif | |
22fae026 | 1692 | #endif |
28f23441 | 1693 | break; |
79072805 | 1694 | case '\006': /* ^F */ |
3280af22 | 1695 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1696 | break; |
a0d0e21e | 1697 | case '\010': /* ^H */ |
3280af22 | 1698 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1699 | break; |
9d116dd7 | 1700 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1701 | if (PL_inplace) |
1702 | Safefree(PL_inplace); | |
79072805 | 1703 | if (SvOK(sv)) |
2d8e6c8d | 1704 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1705 | else |
3280af22 | 1706 | PL_inplace = Nullch; |
79072805 | 1707 | break; |
28f23441 | 1708 | case '\017': /* ^O */ |
3280af22 NIS |
1709 | if (PL_osname) |
1710 | Safefree(PL_osname); | |
28f23441 | 1711 | if (SvOK(sv)) |
2d8e6c8d | 1712 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1713 | else |
3280af22 | 1714 | PL_osname = Nullch; |
28f23441 | 1715 | break; |
79072805 | 1716 | case '\020': /* ^P */ |
3280af22 | 1717 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1718 | if (PL_perldb && !PL_DBsingle) |
1719 | init_debugger(); | |
79072805 LW |
1720 | break; |
1721 | case '\024': /* ^T */ | |
88e89b8a | 1722 | #ifdef BIG_TIME |
6b88bc9c | 1723 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1724 | #else |
3280af22 | 1725 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1726 | #endif |
79072805 | 1727 | break; |
46487f74 | 1728 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1729 | if (*(mg->mg_ptr+1) == '\0') { |
1730 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1731 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1732 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) | |
0453d815 | 1733 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1734 | } |
599cee73 | 1735 | } |
6a818117 | 1736 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1737 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1738 | if (!SvPOK(sv) && PL_localizing) { |
1739 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1740 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1741 | break; |
1742 | } | |
d5a71f30 | 1743 | if (isWARN_on(sv, WARN_ALL) && !isWARNf_on(sv, WARN_ALL)) { |
d3a7d8c7 | 1744 | PL_compiling.cop_warnings = pWARN_ALL; |
4438c4b7 JH |
1745 | PL_dowarn |= G_WARN_ONCE ; |
1746 | } | |
d3a7d8c7 | 1747 | else { |
b5477537 | 1748 | STRLEN len, i; |
d3a7d8c7 | 1749 | int accumulate = 0 ; |
d3a7d8c7 GS |
1750 | char * ptr = (char*)SvPV(sv, len) ; |
1751 | for (i = 0 ; i < len ; ++i) | |
1752 | accumulate += ptr[i] ; | |
1753 | if (!accumulate) | |
1754 | PL_compiling.cop_warnings = pWARN_NONE; | |
1755 | else { | |
1756 | if (specialWARN(PL_compiling.cop_warnings)) | |
1757 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1758 | else | |
1759 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1760 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1761 | PL_dowarn |= G_WARN_ONCE ; | |
1762 | } | |
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': |
4bc88a62 PS |
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 >= 400000 | |
2009 | /* The - 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 */ | |
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 MB |
2095 | { |
2096 | dTHR; | |
b900a521 JH |
2097 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2098 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2099 | PTR2UV(thr), PTR2UV(sv));) | |
f93b4edd | 2100 | if (MgOWNER(mg)) |
cea2e8a9 | 2101 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2102 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2103 | COND_DESTROY(MgCONDP(mg)); | |
2104 | return 0; | |
2105 | } | |
2106 | #endif /* USE_THREADS */ | |
2107 | ||
79072805 | 2108 | I32 |
864dbfa3 | 2109 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2110 | { |
2111 | register char **sigv; | |
2112 | ||
22c35a8c | 2113 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2114 | if (strEQ(sig,*sigv)) |
22c35a8c | 2115 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2116 | #ifdef SIGCLD |
2117 | if (strEQ(sig,"CHLD")) | |
2118 | return SIGCLD; | |
2119 | #endif | |
2120 | #ifdef SIGCHLD | |
2121 | if (strEQ(sig,"CLD")) | |
2122 | return SIGCHLD; | |
2123 | #endif | |
2124 | return 0; | |
2125 | } | |
2126 | ||
84902520 TB |
2127 | static SV* sig_sv; |
2128 | ||
ecfc5424 | 2129 | Signal_t |
cea2e8a9 | 2130 | Perl_sighandler(int sig) |
79072805 | 2131 | { |
71d280e3 GS |
2132 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2133 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ | |
2134 | #else | |
cea2e8a9 | 2135 | dTHX; |
71d280e3 | 2136 | #endif |
79072805 | 2137 | dSP; |
00d579c5 | 2138 | GV *gv = Nullgv; |
a0d0e21e | 2139 | HV *st; |
3280af22 | 2140 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2141 | CV *cv = Nullcv; |
533c011a | 2142 | OP *myop = PL_op; |
84902520 | 2143 | U32 flags = 0; |
155aba94 | 2144 | I32 o_save_i = PL_savestack_ix; |
3280af22 | 2145 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2146 | |
2147 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
2148 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ | |
2149 | #endif | |
84902520 | 2150 | |
3280af22 | 2151 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2152 | flags |= 1; |
3280af22 | 2153 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2154 | flags |= 4; |
3280af22 | 2155 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2156 | flags |= 8; |
3280af22 | 2157 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2158 | flags |= 16; |
2159 | ||
22c35a8c | 2160 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2161 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2162 | PL_sig_name[sig]); |
ff0cee69 | 2163 | |
84902520 TB |
2164 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2165 | infinity, so we fix 4 (in fact 5): */ | |
2166 | if (flags & 1) { | |
3280af22 NIS |
2167 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2168 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2169 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2170 | } |
2171 | if (flags & 4) | |
3280af22 | 2172 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2173 | if (flags & 8) { |
3280af22 NIS |
2174 | PL_retstack_ix++; |
2175 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2176 | } |
2177 | if (flags & 16) | |
3280af22 | 2178 | PL_scopestack_ix += 1; |
84902520 | 2179 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2180 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2181 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2182 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2183 | |
a0d0e21e | 2184 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2185 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2186 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2187 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2188 | : ((cv && CvGV(cv)) |
2189 | ? GvENAME(CvGV(cv)) | |
2190 | : "__ANON__"))); | |
2191 | goto cleanup; | |
79072805 LW |
2192 | } |
2193 | ||
22c35a8c GS |
2194 | if(PL_psig_name[sig]) { |
2195 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2196 | flags |= 64; |
2197 | sig_sv = sv; | |
2198 | } else { | |
ff0cee69 | 2199 | sv = sv_newmortal(); |
22c35a8c | 2200 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2201 | } |
e336de0d | 2202 | |
e788e7d3 | 2203 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2204 | PUSHMARK(SP); |
79072805 | 2205 | PUSHs(sv); |
79072805 | 2206 | PUTBACK; |
a0d0e21e | 2207 | |
864dbfa3 | 2208 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2209 | |
d3acc0f7 | 2210 | POPSTACK; |
00d579c5 | 2211 | cleanup: |
84902520 | 2212 | if (flags & 1) |
3280af22 | 2213 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2214 | if (flags & 4) |
3280af22 | 2215 | PL_markstack_ptr--; |
84902520 | 2216 | if (flags & 8) |
3280af22 | 2217 | PL_retstack_ix--; |
84902520 | 2218 | if (flags & 16) |
3280af22 | 2219 | PL_scopestack_ix -= 1; |
84902520 TB |
2220 | if (flags & 64) |
2221 | SvREFCNT_dec(sv); | |
533c011a | 2222 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2223 | |
3280af22 NIS |
2224 | PL_Sv = tSv; /* Restore global temporaries. */ |
2225 | PL_Xpv = tXpv; | |
79072805 LW |
2226 | return; |
2227 | } | |
4e35701f NIS |
2228 | |
2229 | ||
51371543 | 2230 | #ifdef PERL_OBJECT |
51371543 GS |
2231 | #include "XSUB.h" |
2232 | #endif | |
2233 | ||
2234 | static void | |
2235 | restore_magic(pTHXo_ void *p) | |
2236 | { | |
2237 | dTHR; | |
48944bdf | 2238 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2239 | SV* sv = mgs->mgs_sv; |
2240 | ||
2241 | if (!sv) | |
2242 | return; | |
2243 | ||
2244 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2245 | { | |
2246 | if (mgs->mgs_flags) | |
2247 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2248 | else | |
2249 | mg_magical(sv); | |
2250 | if (SvGMAGICAL(sv)) | |
2251 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2252 | } | |
2253 | ||
2254 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2255 | ||
2256 | /* If we're still on top of the stack, pop us off. (That condition | |
2257 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2258 | * if it's being called via leave_scope.) | |
2259 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2260 | * may leave alloc gunk on the savestack, and some code | |
2261 | * (e.g. sighandler) doesn't expect that... | |
2262 | */ | |
2263 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2264 | { | |
2265 | I32 popval = SSPOPINT; | |
c76ac1ee | 2266 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2267 | PL_savestack_ix -= 2; |
2268 | popval = SSPOPINT; | |
2269 | assert(popval == SAVEt_ALLOC); | |
2270 | popval = SSPOPINT; | |
2271 | PL_savestack_ix -= popval; | |
2272 | } | |
2273 | ||
2274 | } | |
2275 | ||
2276 | static void | |
2277 | unwind_handler_stack(pTHXo_ void *p) | |
2278 | { | |
2279 | dTHR; | |
2280 | U32 flags = *(U32*)p; | |
2281 | ||
2282 | if (flags & 1) | |
2283 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2284 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2285 | if (flags & 64) | |
2286 | SvREFCNT_dec(sig_sv); | |
2287 | } |