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; | |
ac27b0f5 | 203 | |
93965878 NIS |
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 | 294 | sv_magic(nsv, |
fd345fa8 MG |
295 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : |
296 | (mg->mg_type == 'D' && mg->mg_obj) ? sv : mg->mg_obj, | |
33c27489 | 297 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 298 | count++; |
79072805 | 299 | } |
79072805 | 300 | } |
463ee0b2 | 301 | return count; |
79072805 LW |
302 | } |
303 | ||
954c1994 GS |
304 | /* |
305 | =for apidoc mg_free | |
306 | ||
307 | Free any magic storage used by the SV. See C<sv_magic>. | |
308 | ||
309 | =cut | |
310 | */ | |
311 | ||
79072805 | 312 | int |
864dbfa3 | 313 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
314 | { |
315 | MAGIC* mg; | |
316 | MAGIC* moremagic; | |
317 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
318 | MGVTBL* vtbl = mg->mg_virtual; | |
319 | moremagic = mg->mg_moremagic; | |
2b260de0 | 320 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 321 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
93a17b20 | 322 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 323 | if (mg->mg_len >= 0) |
88e89b8a | 324 | Safefree(mg->mg_ptr); |
565764a8 | 325 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 326 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 327 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 328 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
329 | Safefree(mg); |
330 | } | |
331 | SvMAGIC(sv) = 0; | |
332 | return 0; | |
333 | } | |
334 | ||
335 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
336 | #include <signal.h> | |
337 | #endif | |
338 | ||
942e002e | 339 | U32 |
864dbfa3 | 340 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
341 | { |
342 | dTHR; | |
6cef1e77 | 343 | register REGEXP *rx; |
6cef1e77 | 344 | |
8f580fb8 IZ |
345 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
346 | if (mg->mg_obj) /* @+ */ | |
347 | return rx->nparens; | |
348 | else /* @- */ | |
349 | return rx->lastparen; | |
350 | } | |
ac27b0f5 | 351 | |
942e002e | 352 | return (U32)-1; |
6cef1e77 IZ |
353 | } |
354 | ||
355 | int | |
864dbfa3 | 356 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
357 | { |
358 | dTHR; | |
359 | register I32 paren; | |
cf93c79d | 360 | register I32 s; |
6cef1e77 IZ |
361 | register I32 i; |
362 | register REGEXP *rx; | |
cf93c79d | 363 | I32 t; |
6cef1e77 IZ |
364 | |
365 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
366 | paren = mg->mg_len; | |
367 | if (paren < 0) | |
368 | return 0; | |
369 | if (paren <= rx->nparens && | |
cf93c79d IZ |
370 | (s = rx->startp[paren]) != -1 && |
371 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
372 | { |
373 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 374 | i = t; |
6cef1e77 | 375 | else /* @- */ |
cf93c79d | 376 | i = s; |
6cef1e77 IZ |
377 | sv_setiv(sv,i); |
378 | } | |
379 | } | |
380 | return 0; | |
381 | } | |
382 | ||
e4b89193 | 383 | int |
a29d06ed MG |
384 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
385 | { | |
386 | dTHR; | |
387 | Perl_croak(aTHX_ PL_no_modify); | |
e4b89193 GS |
388 | /* NOT REACHED */ |
389 | return 0; | |
a29d06ed MG |
390 | } |
391 | ||
93a17b20 | 392 | U32 |
864dbfa3 | 393 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 394 | { |
a863c7d1 | 395 | dTHR; |
93a17b20 | 396 | register I32 paren; |
93a17b20 | 397 | register I32 i; |
d9f97599 | 398 | register REGEXP *rx; |
a197cbdd | 399 | I32 s1, t1; |
93a17b20 LW |
400 | |
401 | switch (*mg->mg_ptr) { | |
402 | case '1': case '2': case '3': case '4': | |
403 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 404 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d | 405 | |
93a17b20 LW |
406 | paren = atoi(mg->mg_ptr); |
407 | getparen: | |
d9f97599 | 408 | if (paren <= rx->nparens && |
cf93c79d IZ |
409 | (s1 = rx->startp[paren]) != -1 && |
410 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 411 | { |
cf93c79d | 412 | i = t1 - s1; |
a197cbdd GS |
413 | getlen: |
414 | if (i > 0 && (PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { | |
415 | char *s = rx->subbeg + s1; | |
416 | char *send = rx->subbeg + t1; | |
417 | i = 0; | |
418 | while (s < send) { | |
419 | s += UTF8SKIP(s); | |
420 | i++; | |
421 | } | |
422 | } | |
71be2cbc | 423 | if (i >= 0) |
93a17b20 | 424 | return i; |
93a17b20 | 425 | } |
93a17b20 | 426 | } |
748a9306 | 427 | return 0; |
93a17b20 | 428 | case '+': |
3280af22 | 429 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 430 | paren = rx->lastparen; |
13f57bf8 CS |
431 | if (paren) |
432 | goto getparen; | |
93a17b20 | 433 | } |
748a9306 | 434 | return 0; |
93a17b20 | 435 | case '`': |
3280af22 | 436 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
437 | if (rx->startp[0] != -1) { |
438 | i = rx->startp[0]; | |
a197cbdd GS |
439 | if (i > 0) { |
440 | s1 = 0; | |
441 | t1 = i; | |
442 | goto getlen; | |
443 | } | |
93a17b20 | 444 | } |
93a17b20 | 445 | } |
748a9306 | 446 | return 0; |
93a17b20 | 447 | case '\'': |
3280af22 | 448 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
449 | if (rx->endp[0] != -1) { |
450 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
451 | if (i > 0) { |
452 | s1 = rx->endp[0]; | |
453 | t1 = rx->sublen; | |
454 | goto getlen; | |
455 | } | |
93a17b20 | 456 | } |
93a17b20 | 457 | } |
748a9306 | 458 | return 0; |
93a17b20 | 459 | case ',': |
3280af22 | 460 | return (STRLEN)PL_ofslen; |
93a17b20 | 461 | case '\\': |
3280af22 | 462 | return (STRLEN)PL_orslen; |
93a17b20 LW |
463 | } |
464 | magic_get(sv,mg); | |
2d8e6c8d GS |
465 | if (!SvPOK(sv) && SvNIOK(sv)) { |
466 | STRLEN n_a; | |
467 | sv_2pv(sv, &n_a); | |
468 | } | |
93a17b20 LW |
469 | if (SvPOK(sv)) |
470 | return SvCUR(sv); | |
471 | return 0; | |
472 | } | |
473 | ||
79072805 | 474 | int |
864dbfa3 | 475 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 476 | { |
a863c7d1 | 477 | dTHR; |
79072805 LW |
478 | register I32 paren; |
479 | register char *s; | |
480 | register I32 i; | |
d9f97599 | 481 | register REGEXP *rx; |
79072805 LW |
482 | |
483 | switch (*mg->mg_ptr) { | |
748a9306 | 484 | case '\001': /* ^A */ |
3280af22 | 485 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 486 | break; |
49460fe6 NIS |
487 | case '\003': /* ^C */ |
488 | sv_setiv(sv, (IV)PL_minus_c); | |
489 | break; | |
490 | ||
79072805 | 491 | case '\004': /* ^D */ |
3280af22 | 492 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
d056ab3f GS |
493 | #if defined(YYDEBUG) && defined(DEBUGGING) |
494 | PL_yydebug = (PL_debug & 1); | |
495 | #endif | |
79072805 | 496 | break; |
28f23441 | 497 | case '\005': /* ^E */ |
cd39f2b6 JH |
498 | #ifdef MACOS_TRADITIONAL |
499 | { | |
500 | char msg[256]; | |
ac27b0f5 | 501 | |
bf4acbe4 GS |
502 | sv_setnv(sv,(double)gMacPerl_OSErr); |
503 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
cd39f2b6 JH |
504 | } |
505 | #else | |
28f23441 | 506 | #ifdef VMS |
507 | { | |
508 | # include <descrip.h> | |
509 | # include <starlet.h> | |
510 | char msg[255]; | |
511 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 512 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 513 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
514 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
515 | else | |
516 | sv_setpv(sv,""); | |
517 | } | |
518 | #else | |
88e89b8a | 519 | #ifdef OS2 |
fb73857a | 520 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 521 | sv_setnv(sv, (NV)errno); |
fb73857a | 522 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
523 | } else { | |
017f25f1 IZ |
524 | if (errno != errno_isOS2) { |
525 | int tmp = _syserrno(); | |
526 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
527 | Perl_rc = tmp; | |
528 | } | |
65202027 | 529 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 530 | sv_setpv(sv, os2error(Perl_rc)); |
531 | } | |
88e89b8a | 532 | #else |
22fae026 TM |
533 | #ifdef WIN32 |
534 | { | |
535 | DWORD dwErr = GetLastError(); | |
65202027 | 536 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 537 | if (dwErr) |
76e3520e | 538 | { |
0cb96387 | 539 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 540 | } |
22fae026 TM |
541 | else |
542 | sv_setpv(sv, ""); | |
543 | SetLastError(dwErr); | |
544 | } | |
545 | #else | |
65202027 | 546 | sv_setnv(sv, (NV)errno); |
28f23441 | 547 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
548 | #endif | |
88e89b8a | 549 | #endif |
22fae026 | 550 | #endif |
cd39f2b6 | 551 | #endif |
946ec16e | 552 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 553 | break; |
79072805 | 554 | case '\006': /* ^F */ |
3280af22 | 555 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 556 | break; |
a0d0e21e | 557 | case '\010': /* ^H */ |
3280af22 | 558 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 559 | break; |
9d116dd7 | 560 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
561 | if (PL_inplace) |
562 | sv_setpv(sv, PL_inplace); | |
79072805 | 563 | else |
3280af22 | 564 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 565 | break; |
ac27b0f5 NIS |
566 | case '\017': /* ^O & ^OPEN */ |
567 | if (*(mg->mg_ptr+1) == '\0') | |
568 | sv_setpv(sv, PL_osname); | |
569 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
570 | if (!PL_compiling.cop_io) | |
571 | sv_setsv(sv, &PL_sv_undef); | |
572 | else { | |
573 | sv_setsv(sv, PL_compiling.cop_io); | |
574 | } | |
575 | } | |
28f23441 | 576 | break; |
79072805 | 577 | case '\020': /* ^P */ |
3280af22 | 578 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 579 | break; |
fb73857a | 580 | case '\023': /* ^S */ |
d58bf5aa MB |
581 | { |
582 | dTHR; | |
3280af22 | 583 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 584 | (void)SvOK_off(sv); |
3280af22 | 585 | else if (PL_in_eval) |
6dc8a9e4 | 586 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
d58bf5aa | 587 | } |
fb73857a | 588 | break; |
79072805 | 589 | case '\024': /* ^T */ |
88e89b8a | 590 | #ifdef BIG_TIME |
6b88bc9c | 591 | sv_setnv(sv, PL_basetime); |
88e89b8a | 592 | #else |
3280af22 | 593 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 594 | #endif |
79072805 | 595 | break; |
46487f74 | 596 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
597 | if (*(mg->mg_ptr+1) == '\0') |
598 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 599 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
600 | if (PL_compiling.cop_warnings == pWARN_NONE || |
601 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
602 | { |
603 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
604 | } | |
d3a7d8c7 | 605 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 606 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 607 | } |
4438c4b7 JH |
608 | else { |
609 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 610 | } |
d3a7d8c7 | 611 | SvPOK_only(sv); |
4438c4b7 | 612 | } |
46487f74 GS |
613 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
614 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
615 | break; |
616 | case '1': case '2': case '3': case '4': | |
617 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 618 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
619 | I32 s1, t1; |
620 | ||
a863c7d1 MB |
621 | /* |
622 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
623 | * XXX Does the new way break anything? | |
624 | */ | |
625 | paren = atoi(mg->mg_ptr); | |
79072805 | 626 | getparen: |
d9f97599 | 627 | if (paren <= rx->nparens && |
cf93c79d IZ |
628 | (s1 = rx->startp[paren]) != -1 && |
629 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 630 | { |
cf93c79d IZ |
631 | i = t1 - s1; |
632 | s = rx->subbeg + s1; | |
01ec43d0 | 633 | if (!rx->subbeg) |
c2e66d9e GS |
634 | break; |
635 | ||
13f57bf8 | 636 | getrx: |
748a9306 | 637 | if (i >= 0) { |
13f57bf8 | 638 | bool was_tainted; |
3280af22 NIS |
639 | if (PL_tainting) { |
640 | was_tainted = PL_tainted; | |
641 | PL_tainted = FALSE; | |
13f57bf8 | 642 | } |
cf93c79d | 643 | sv_setpvn(sv, s, i); |
7e2040f0 GS |
644 | if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) |
645 | SvUTF8_on(sv); | |
646 | else | |
647 | SvUTF8_off(sv); | |
3280af22 NIS |
648 | if (PL_tainting) |
649 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
650 | break; |
651 | } | |
79072805 | 652 | } |
79072805 | 653 | } |
3280af22 | 654 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
655 | break; |
656 | case '+': | |
3280af22 | 657 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 658 | paren = rx->lastparen; |
a0d0e21e LW |
659 | if (paren) |
660 | goto getparen; | |
79072805 | 661 | } |
3280af22 | 662 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
663 | break; |
664 | case '`': | |
3280af22 | 665 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
666 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
667 | i = rx->startp[0]; | |
13f57bf8 | 668 | goto getrx; |
79072805 | 669 | } |
79072805 | 670 | } |
3280af22 | 671 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
672 | break; |
673 | case '\'': | |
3280af22 | 674 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
675 | if (rx->subbeg && rx->endp[0] != -1) { |
676 | s = rx->subbeg + rx->endp[0]; | |
677 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 678 | goto getrx; |
79072805 | 679 | } |
79072805 | 680 | } |
3280af22 | 681 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
682 | break; |
683 | case '.': | |
684 | #ifndef lint | |
3280af22 NIS |
685 | if (GvIO(PL_last_in_gv)) { |
686 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
687 | } |
688 | #endif | |
689 | break; | |
690 | case '?': | |
809a5acc | 691 | { |
809a5acc | 692 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 693 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
694 | LvTARGOFF(sv) = PL_statusvalue; |
695 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 696 | #endif |
809a5acc | 697 | } |
79072805 LW |
698 | break; |
699 | case '^': | |
3280af22 | 700 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
701 | if (s) |
702 | sv_setpv(sv,s); | |
703 | else { | |
3280af22 | 704 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
705 | sv_catpv(sv,"_TOP"); |
706 | } | |
707 | break; | |
708 | case '~': | |
3280af22 | 709 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 710 | if (!s) |
3280af22 | 711 | s = GvENAME(PL_defoutgv); |
79072805 LW |
712 | sv_setpv(sv,s); |
713 | break; | |
714 | #ifndef lint | |
715 | case '=': | |
3280af22 | 716 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
717 | break; |
718 | case '-': | |
3280af22 | 719 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
720 | break; |
721 | case '%': | |
3280af22 | 722 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
723 | break; |
724 | #endif | |
725 | case ':': | |
726 | break; | |
727 | case '/': | |
728 | break; | |
729 | case '[': | |
3280af22 | 730 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
731 | break; |
732 | case '|': | |
3280af22 | 733 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
734 | break; |
735 | case ',': | |
3280af22 | 736 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
737 | break; |
738 | case '\\': | |
3280af22 | 739 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
740 | break; |
741 | case '#': | |
3280af22 | 742 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
743 | break; |
744 | case '!': | |
a5f75d66 | 745 | #ifdef VMS |
65202027 | 746 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 747 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 748 | #else |
88e89b8a | 749 | { |
750 | int saveerrno = errno; | |
65202027 | 751 | sv_setnv(sv, (NV)errno); |
88e89b8a | 752 | #ifdef OS2 |
ed344e4f IZ |
753 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
754 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 755 | else |
a5f75d66 | 756 | #endif |
2304df62 | 757 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 758 | errno = saveerrno; |
759 | } | |
760 | #endif | |
946ec16e | 761 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
762 | break; |
763 | case '<': | |
3280af22 | 764 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
765 | break; |
766 | case '>': | |
3280af22 | 767 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
768 | break; |
769 | case '(': | |
3280af22 | 770 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 771 | #ifdef HAS_GETGROUPS |
785fb66b | 772 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 773 | #endif |
79072805 LW |
774 | goto add_groups; |
775 | case ')': | |
3280af22 | 776 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 777 | #ifdef HAS_GETGROUPS |
785fb66b | 778 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 779 | #endif |
79072805 | 780 | add_groups: |
79072805 | 781 | #ifdef HAS_GETGROUPS |
79072805 | 782 | { |
a0d0e21e | 783 | Groups_t gary[NGROUPS]; |
79072805 | 784 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 785 | while (--i >= 0) |
785fb66b | 786 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
787 | } |
788 | #endif | |
155aba94 | 789 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
790 | break; |
791 | case '*': | |
792 | break; | |
cd39f2b6 | 793 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
794 | case '0': |
795 | break; | |
cd39f2b6 | 796 | #endif |
a863c7d1 MB |
797 | #ifdef USE_THREADS |
798 | case '@': | |
38a03e6e | 799 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
800 | break; |
801 | #endif /* USE_THREADS */ | |
79072805 | 802 | } |
a0d0e21e | 803 | return 0; |
79072805 LW |
804 | } |
805 | ||
806 | int | |
864dbfa3 | 807 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
808 | { |
809 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
810 | ||
811 | if (uf && uf->uf_val) | |
812 | (*uf->uf_val)(uf->uf_index, sv); | |
813 | return 0; | |
814 | } | |
815 | ||
816 | int | |
864dbfa3 | 817 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
818 | { |
819 | register char *s; | |
88e89b8a | 820 | char *ptr; |
5aabfad6 | 821 | STRLEN len, klen; |
a0d0e21e | 822 | I32 i; |
1e422769 | 823 | |
a0d0e21e | 824 | s = SvPV(sv,len); |
5aabfad6 | 825 | ptr = MgPV(mg,klen); |
88e89b8a | 826 | my_setenv(ptr, s); |
1e422769 | 827 | |
a0d0e21e LW |
828 | #ifdef DYNAMIC_ENV_FETCH |
829 | /* We just undefd an environment var. Is a replacement */ | |
830 | /* waiting in the wings? */ | |
831 | if (!len) { | |
5aabfad6 | 832 | SV **valp; |
6b88bc9c | 833 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 834 | s = SvPV(*valp, len); |
a0d0e21e LW |
835 | } |
836 | #endif | |
1e422769 | 837 | |
39e571d4 | 838 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
839 | /* And you'll never guess what the dog had */ |
840 | /* in its mouth... */ | |
3280af22 | 841 | if (PL_tainting) { |
1e422769 | 842 | MgTAINTEDDIR_off(mg); |
843 | #ifdef VMS | |
5aabfad6 | 844 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 845 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
846 | struct stat sbuf; | |
847 | int i = 0, j = 0; | |
848 | ||
849 | do { /* DCL$PATH may be a search list */ | |
850 | while (1) { /* as may dev portion of any element */ | |
851 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
852 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
853 | cando_by_name(S_IWUSR,0,elt) ) { | |
854 | MgTAINTEDDIR_on(mg); | |
855 | return 0; | |
856 | } | |
857 | } | |
858 | if ((cp = strchr(elt, ':')) != Nullch) | |
859 | *cp = '\0'; | |
860 | if (my_trnlnm(elt, eltbuf, j++)) | |
861 | elt = eltbuf; | |
862 | else | |
863 | break; | |
864 | } | |
865 | j = 0; | |
866 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
867 | } | |
868 | #endif /* VMS */ | |
5aabfad6 | 869 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 870 | char *strend = s + len; |
463ee0b2 LW |
871 | |
872 | while (s < strend) { | |
96827780 | 873 | char tmpbuf[256]; |
1e422769 | 874 | struct stat st; |
96827780 | 875 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 876 | s, strend, ':', &i); |
463ee0b2 | 877 | s++; |
96827780 MB |
878 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
879 | || *tmpbuf != '/' | |
c6ed36e1 | 880 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 881 | MgTAINTEDDIR_on(mg); |
1e422769 | 882 | return 0; |
883 | } | |
463ee0b2 | 884 | } |
79072805 LW |
885 | } |
886 | } | |
39e571d4 | 887 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 888 | |
79072805 LW |
889 | return 0; |
890 | } | |
891 | ||
892 | int | |
864dbfa3 | 893 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 894 | { |
2d8e6c8d GS |
895 | STRLEN n_a; |
896 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
897 | return 0; |
898 | } | |
899 | ||
88e89b8a | 900 | int |
864dbfa3 | 901 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 902 | { |
903 | #if defined(VMS) | |
cea2e8a9 | 904 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 905 | #else |
d58bf5aa | 906 | dTHR; |
3280af22 | 907 | if (PL_localizing) { |
fb73857a | 908 | HE* entry; |
2d8e6c8d | 909 | STRLEN n_a; |
fb73857a | 910 | magic_clear_all_env(sv,mg); |
911 | hv_iterinit((HV*)sv); | |
155aba94 | 912 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 913 | I32 keylen; |
914 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 915 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 916 | } |
917 | } | |
918 | #endif | |
919 | return 0; | |
920 | } | |
921 | ||
922 | int | |
864dbfa3 | 923 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 924 | { |
ed79a026 | 925 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 926 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 927 | #else |
7766f137 GS |
928 | # ifdef PERL_IMPLICIT_SYS |
929 | PerlEnv_clearenv(); | |
930 | # else | |
931 | # ifdef WIN32 | |
3e3baf6d TB |
932 | char *envv = GetEnvironmentStrings(); |
933 | char *cur = envv; | |
934 | STRLEN len; | |
935 | while (*cur) { | |
936 | char *end = strchr(cur,'='); | |
937 | if (end && end != cur) { | |
938 | *end = '\0'; | |
939 | my_setenv(cur,Nullch); | |
940 | *end = '='; | |
ac5c734f | 941 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
942 | } |
943 | else if ((len = strlen(cur))) | |
944 | cur += len+1; | |
945 | } | |
946 | FreeEnvironmentStrings(envv); | |
7766f137 GS |
947 | # else |
948 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
949 | I32 i; |
950 | ||
3280af22 | 951 | if (environ == PL_origenviron) |
f2517201 | 952 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
953 | else |
954 | for (i = 0; environ[i]; i++) | |
f2517201 | 955 | safesysfree(environ[i]); |
7766f137 | 956 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 957 | |
66b1d557 HM |
958 | environ[0] = Nullch; |
959 | ||
7766f137 GS |
960 | # endif /* WIN32 */ |
961 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 962 | #endif /* VMS */ |
3e3baf6d | 963 | return 0; |
66b1d557 HM |
964 | } |
965 | ||
64ca3a65 | 966 | #ifndef PERL_MICRO |
66b1d557 | 967 | int |
864dbfa3 | 968 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 969 | { |
970 | I32 i; | |
2d8e6c8d | 971 | STRLEN n_a; |
88e89b8a | 972 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 973 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 974 | if (i) { |
22c35a8c GS |
975 | if(PL_psig_ptr[i]) |
976 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 977 | else { |
ff68c719 | 978 | Sighandler_t sigstate = rsignal_state(i); |
979 | ||
88e89b8a | 980 | /* cache state so we don't fetch it again */ |
ff68c719 | 981 | if(sigstate == SIG_IGN) |
88e89b8a | 982 | sv_setpv(sv,"IGNORE"); |
983 | else | |
3280af22 | 984 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 985 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 986 | SvTEMP_off(sv); |
987 | } | |
988 | } | |
989 | return 0; | |
990 | } | |
991 | int | |
864dbfa3 | 992 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 993 | { |
994 | I32 i; | |
2d8e6c8d | 995 | STRLEN n_a; |
88e89b8a | 996 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 997 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 998 | if (i) { |
22c35a8c GS |
999 | if(PL_psig_ptr[i]) { |
1000 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1001 | PL_psig_ptr[i]=0; | |
88e89b8a | 1002 | } |
22c35a8c GS |
1003 | if(PL_psig_name[i]) { |
1004 | SvREFCNT_dec(PL_psig_name[i]); | |
1005 | PL_psig_name[i]=0; | |
88e89b8a | 1006 | } |
1007 | } | |
1008 | return 0; | |
1009 | } | |
3d37d572 | 1010 | |
85e6fe83 | 1011 | int |
864dbfa3 | 1012 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1013 | { |
11343788 | 1014 | dTHR; |
79072805 LW |
1015 | register char *s; |
1016 | I32 i; | |
748a9306 | 1017 | SV** svp; |
e72dc28c | 1018 | STRLEN len; |
a0d0e21e | 1019 | |
e72dc28c | 1020 | s = MgPV(mg,len); |
748a9306 LW |
1021 | if (*s == '_') { |
1022 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1023 | svp = &PL_diehook; |
748a9306 | 1024 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1025 | svp = &PL_warnhook; |
748a9306 | 1026 | else |
cea2e8a9 | 1027 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1028 | i = 0; |
4633a7c4 LW |
1029 | if (*svp) { |
1030 | SvREFCNT_dec(*svp); | |
1031 | *svp = 0; | |
1032 | } | |
748a9306 LW |
1033 | } |
1034 | else { | |
1035 | i = whichsig(s); /* ...no, a brick */ | |
1036 | if (!i) { | |
e476b1b5 | 1037 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1038 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1039 | return 0; |
1040 | } | |
22c35a8c GS |
1041 | SvREFCNT_dec(PL_psig_name[i]); |
1042 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1043 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1044 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1045 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1046 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1047 | } |
a0d0e21e | 1048 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1049 | if (i) |
3280af22 | 1050 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1051 | else |
1052 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1053 | return 0; |
1054 | } | |
e72dc28c | 1055 | s = SvPV_force(sv,len); |
748a9306 LW |
1056 | if (strEQ(s,"IGNORE")) { |
1057 | if (i) | |
ff68c719 | 1058 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1059 | else |
1060 | *svp = 0; | |
1061 | } | |
1062 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1063 | if (i) | |
ff68c719 | 1064 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1065 | else |
1066 | *svp = 0; | |
1067 | } | |
79072805 | 1068 | else { |
5aabfad6 | 1069 | /* |
1070 | * We should warn if HINT_STRICT_REFS, but without | |
1071 | * access to a known hint bit in a known OP, we can't | |
1072 | * tell whether HINT_STRICT_REFS is in force or not. | |
1073 | */ | |
46fc3d4c | 1074 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1075 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1076 | if (i) |
3280af22 | 1077 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1078 | else |
1079 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1080 | } |
1081 | return 0; | |
1082 | } | |
64ca3a65 | 1083 | #endif /* !PERL_MICRO */ |
79072805 LW |
1084 | |
1085 | int | |
864dbfa3 | 1086 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1087 | { |
3280af22 | 1088 | PL_sub_generation++; |
463ee0b2 LW |
1089 | return 0; |
1090 | } | |
1091 | ||
1092 | int | |
864dbfa3 | 1093 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1094 | { |
a0d0e21e | 1095 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1096 | PL_amagic_generation++; |
463ee0b2 | 1097 | |
a0d0e21e LW |
1098 | return 0; |
1099 | } | |
463ee0b2 | 1100 | |
946ec16e | 1101 | int |
864dbfa3 | 1102 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1103 | { |
1104 | HV *hv = (HV*)LvTARG(sv); | |
1105 | HE *entry; | |
1106 | I32 i = 0; | |
1107 | ||
1108 | if (hv) { | |
1109 | (void) hv_iterinit(hv); | |
33c27489 | 1110 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1111 | i = HvKEYS(hv); |
1112 | else { | |
1113 | /*SUPPRESS 560*/ | |
155aba94 | 1114 | while ((entry = hv_iternext(hv))) { |
6ff81951 GS |
1115 | i++; |
1116 | } | |
1117 | } | |
1118 | } | |
1119 | ||
1120 | sv_setiv(sv, (IV)i); | |
1121 | return 0; | |
1122 | } | |
1123 | ||
1124 | int | |
864dbfa3 | 1125 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1126 | { |
1127 | if (LvTARG(sv)) { | |
1128 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1129 | } |
1130 | return 0; | |
ac27b0f5 | 1131 | } |
946ec16e | 1132 | |
e336de0d | 1133 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1134 | STATIC int |
cea2e8a9 | 1135 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1136 | { |
1137 | dSP; | |
463ee0b2 | 1138 | |
924508f0 GS |
1139 | PUSHMARK(SP); |
1140 | EXTEND(SP, n); | |
33c27489 | 1141 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1142 | if (n > 1) { |
93965878 | 1143 | if (mg->mg_ptr) { |
565764a8 | 1144 | if (mg->mg_len >= 0) |
79cb57f6 | 1145 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1146 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1147 | PUSHs((SV*)mg->mg_ptr); |
1148 | } | |
1149 | else if (mg->mg_type == 'p') { | |
565764a8 | 1150 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1151 | } |
1152 | } | |
1153 | if (n > 2) { | |
1154 | PUSHs(val); | |
88e89b8a | 1155 | } |
463ee0b2 LW |
1156 | PUTBACK; |
1157 | ||
864dbfa3 | 1158 | return call_method(meth, flags); |
946ec16e | 1159 | } |
1160 | ||
76e3520e | 1161 | STATIC int |
cea2e8a9 | 1162 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1163 | { |
1164 | dSP; | |
463ee0b2 | 1165 | |
a0d0e21e LW |
1166 | ENTER; |
1167 | SAVETMPS; | |
e788e7d3 | 1168 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1169 | |
33c27489 | 1170 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1171 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1172 | } |
463ee0b2 | 1173 | |
d3acc0f7 | 1174 | POPSTACK; |
a0d0e21e LW |
1175 | FREETMPS; |
1176 | LEAVE; | |
1177 | return 0; | |
1178 | } | |
463ee0b2 | 1179 | |
a0d0e21e | 1180 | int |
864dbfa3 | 1181 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1182 | { |
1183 | magic_methpack(sv,mg,"FETCH"); | |
1184 | if (mg->mg_ptr) | |
1185 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1186 | return 0; |
1187 | } | |
1188 | ||
1189 | int | |
864dbfa3 | 1190 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1191 | { |
1192 | dSP; | |
a60c0954 | 1193 | ENTER; |
e788e7d3 | 1194 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1195 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1196 | POPSTACK; |
a60c0954 | 1197 | LEAVE; |
463ee0b2 LW |
1198 | return 0; |
1199 | } | |
1200 | ||
1201 | int | |
864dbfa3 | 1202 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1203 | { |
a0d0e21e LW |
1204 | return magic_methpack(sv,mg,"DELETE"); |
1205 | } | |
463ee0b2 | 1206 | |
93965878 NIS |
1207 | |
1208 | U32 | |
864dbfa3 | 1209 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1210 | { |
e336de0d | 1211 | dSP; |
93965878 NIS |
1212 | U32 retval = 0; |
1213 | ||
1214 | ENTER; | |
1215 | SAVETMPS; | |
e788e7d3 | 1216 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1217 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1218 | sv = *PL_stack_sp--; |
a60c0954 | 1219 | retval = (U32) SvIV(sv)-1; |
93965878 | 1220 | } |
d3acc0f7 | 1221 | POPSTACK; |
93965878 NIS |
1222 | FREETMPS; |
1223 | LEAVE; | |
1224 | return retval; | |
1225 | } | |
1226 | ||
cea2e8a9 GS |
1227 | int |
1228 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1229 | { |
1230 | dSP; | |
463ee0b2 | 1231 | |
e336de0d | 1232 | ENTER; |
e788e7d3 | 1233 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1234 | PUSHMARK(SP); |
33c27489 | 1235 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1236 | PUTBACK; |
864dbfa3 | 1237 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1238 | POPSTACK; |
a60c0954 | 1239 | LEAVE; |
463ee0b2 LW |
1240 | return 0; |
1241 | } | |
1242 | ||
1243 | int | |
864dbfa3 | 1244 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1245 | { |
463ee0b2 | 1246 | dSP; |
dff6d3cd | 1247 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1248 | |
1249 | ENTER; | |
a0d0e21e | 1250 | SAVETMPS; |
e788e7d3 | 1251 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1252 | PUSHMARK(SP); |
1253 | EXTEND(SP, 2); | |
33c27489 | 1254 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1255 | if (SvOK(key)) |
1256 | PUSHs(key); | |
1257 | PUTBACK; | |
1258 | ||
864dbfa3 | 1259 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1260 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1261 | |
d3acc0f7 | 1262 | POPSTACK; |
a0d0e21e LW |
1263 | FREETMPS; |
1264 | LEAVE; | |
79072805 LW |
1265 | return 0; |
1266 | } | |
1267 | ||
1268 | int | |
864dbfa3 | 1269 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1270 | { |
1271 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1272 | } |
a0d0e21e LW |
1273 | |
1274 | int | |
864dbfa3 | 1275 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1276 | { |
11343788 | 1277 | dTHR; |
79072805 LW |
1278 | OP *o; |
1279 | I32 i; | |
1280 | GV* gv; | |
1281 | SV** svp; | |
2d8e6c8d | 1282 | STRLEN n_a; |
79072805 | 1283 | |
3280af22 | 1284 | gv = PL_DBline; |
79072805 | 1285 | i = SvTRUE(sv); |
188ea221 | 1286 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1287 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1288 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1289 | o->op_private = i; |
79072805 LW |
1290 | return 0; |
1291 | } | |
1292 | ||
1293 | int | |
864dbfa3 | 1294 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1295 | { |
0f15f207 | 1296 | dTHR; |
3280af22 | 1297 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1298 | return 0; |
1299 | } | |
1300 | ||
1301 | int | |
864dbfa3 | 1302 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1303 | { |
0f15f207 | 1304 | dTHR; |
3280af22 | 1305 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1306 | return 0; |
1307 | } | |
1308 | ||
1309 | int | |
864dbfa3 | 1310 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1311 | { |
1312 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1313 | |
a0d0e21e LW |
1314 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1315 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1316 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1317 | dTHR; |
a0ed51b3 | 1318 | I32 i = mg->mg_len; |
7e2040f0 | 1319 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1320 | sv_pos_b2u(lsv, &i); |
1321 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1322 | return 0; |
1323 | } | |
1324 | } | |
1325 | (void)SvOK_off(sv); | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | int | |
864dbfa3 | 1330 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1331 | { |
1332 | SV* lsv = LvTARG(sv); | |
1333 | SSize_t pos; | |
1334 | STRLEN len; | |
c00206c8 | 1335 | STRLEN ulen = 0; |
c485e607 | 1336 | dTHR; |
a0d0e21e LW |
1337 | |
1338 | mg = 0; | |
ac27b0f5 | 1339 | |
a0d0e21e LW |
1340 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1341 | mg = mg_find(lsv, 'g'); | |
1342 | if (!mg) { | |
1343 | if (!SvOK(sv)) | |
1344 | return 0; | |
1345 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1346 | mg = mg_find(lsv, 'g'); | |
1347 | } | |
1348 | else if (!SvOK(sv)) { | |
565764a8 | 1349 | mg->mg_len = -1; |
a0d0e21e LW |
1350 | return 0; |
1351 | } | |
1352 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1353 | ||
c485e607 | 1354 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1355 | |
7e2040f0 | 1356 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1357 | ulen = sv_len_utf8(lsv); |
1358 | if (ulen) | |
1359 | len = ulen; | |
a0ed51b3 LW |
1360 | } |
1361 | ||
a0d0e21e LW |
1362 | if (pos < 0) { |
1363 | pos += len; | |
1364 | if (pos < 0) | |
1365 | pos = 0; | |
1366 | } | |
1367 | else if (pos > len) | |
1368 | pos = len; | |
a0ed51b3 LW |
1369 | |
1370 | if (ulen) { | |
1371 | I32 p = pos; | |
1372 | sv_pos_u2b(lsv, &p, 0); | |
1373 | pos = p; | |
1374 | } | |
1375 | ||
565764a8 | 1376 | mg->mg_len = pos; |
71be2cbc | 1377 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1378 | |
79072805 LW |
1379 | return 0; |
1380 | } | |
1381 | ||
1382 | int | |
864dbfa3 | 1383 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1384 | { |
8646b087 | 1385 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1386 | SvFAKE_off(sv); | |
946ec16e | 1387 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1388 | SvFAKE_on(sv); |
1389 | } | |
1390 | else | |
946ec16e | 1391 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1392 | return 0; |
1393 | } | |
1394 | ||
1395 | int | |
864dbfa3 | 1396 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1397 | { |
1398 | register char *s; | |
1399 | GV* gv; | |
2d8e6c8d | 1400 | STRLEN n_a; |
79072805 LW |
1401 | |
1402 | if (!SvOK(sv)) | |
1403 | return 0; | |
2d8e6c8d | 1404 | s = SvPV(sv, n_a); |
79072805 LW |
1405 | if (*s == '*' && s[1]) |
1406 | s++; | |
85e6fe83 | 1407 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1408 | if (sv == (SV*)gv) |
1409 | return 0; | |
1410 | if (GvGP(sv)) | |
88e89b8a | 1411 | gp_free((GV*)sv); |
79072805 | 1412 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1413 | return 0; |
1414 | } | |
1415 | ||
1416 | int | |
864dbfa3 | 1417 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1418 | { |
1419 | STRLEN len; | |
1420 | SV *lsv = LvTARG(sv); | |
1421 | char *tmps = SvPV(lsv,len); | |
1422 | I32 offs = LvTARGOFF(sv); | |
1423 | I32 rem = LvTARGLEN(sv); | |
1424 | ||
1425 | if (offs > len) | |
1426 | offs = len; | |
1427 | if (rem + offs > len) | |
1428 | rem = len - offs; | |
1429 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
2ef4b674 GS |
1430 | if (DO_UTF8(lsv)) |
1431 | SvUTF8_on(sv); | |
6ff81951 GS |
1432 | return 0; |
1433 | } | |
1434 | ||
1435 | int | |
864dbfa3 | 1436 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1437 | { |
8990e307 LW |
1438 | STRLEN len; |
1439 | char *tmps = SvPV(sv,len); | |
1440 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1441 | return 0; |
1442 | } | |
1443 | ||
1444 | int | |
864dbfa3 | 1445 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1446 | { |
a863c7d1 | 1447 | dTHR; |
565764a8 | 1448 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1449 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1450 | return 0; |
1451 | } | |
1452 | ||
1453 | int | |
864dbfa3 | 1454 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1455 | { |
11343788 | 1456 | dTHR; |
3280af22 NIS |
1457 | if (PL_localizing) { |
1458 | if (PL_localizing == 1) | |
565764a8 | 1459 | mg->mg_len <<= 1; |
748a9306 | 1460 | else |
565764a8 | 1461 | mg->mg_len >>= 1; |
a0d0e21e | 1462 | } |
3280af22 | 1463 | else if (PL_tainted) |
565764a8 | 1464 | mg->mg_len |= 1; |
748a9306 | 1465 | else |
565764a8 | 1466 | mg->mg_len &= ~1; |
463ee0b2 LW |
1467 | return 0; |
1468 | } | |
1469 | ||
1470 | int | |
864dbfa3 | 1471 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1472 | { |
1473 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1474 | |
1475 | if (!lsv) { | |
155aba94 | 1476 | (void)SvOK_off(sv); |
6ff81951 GS |
1477 | return 0; |
1478 | } | |
6ff81951 | 1479 | |
81e118e0 | 1480 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1481 | return 0; |
1482 | } | |
1483 | ||
1484 | int | |
864dbfa3 | 1485 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1486 | { |
1487 | do_vecset(sv); /* XXX slurp this routine */ | |
1488 | return 0; | |
1489 | } | |
1490 | ||
1491 | int | |
864dbfa3 | 1492 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1493 | { |
71be2cbc | 1494 | SV *targ = Nullsv; |
5f05dabc | 1495 | if (LvTARGLEN(sv)) { |
68dc0745 | 1496 | if (mg->mg_obj) { |
74e13ce4 GS |
1497 | SV *ahv = LvTARG(sv); |
1498 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1499 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1500 | if (he) | |
1501 | targ = HeVAL(he); | |
1502 | } | |
1503 | else { | |
1504 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1505 | if (svp) | |
1506 | targ = *svp; | |
1507 | } | |
68dc0745 | 1508 | } |
1509 | else { | |
3c78fafa | 1510 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1511 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1512 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1513 | } | |
3280af22 | 1514 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1515 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1516 | /* somebody else defined it for us */ |
1517 | SvREFCNT_dec(LvTARG(sv)); | |
1518 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1519 | LvTARGLEN(sv) = 0; | |
1520 | SvREFCNT_dec(mg->mg_obj); | |
1521 | mg->mg_obj = Nullsv; | |
1522 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1523 | } | |
5f05dabc | 1524 | } |
71be2cbc | 1525 | else |
1526 | targ = LvTARG(sv); | |
3280af22 | 1527 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1528 | return 0; |
1529 | } | |
1530 | ||
1531 | int | |
864dbfa3 | 1532 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1533 | { |
1534 | if (LvTARGLEN(sv)) | |
68dc0745 | 1535 | vivify_defelem(sv); |
1536 | if (LvTARG(sv)) { | |
5f05dabc | 1537 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1538 | SvSETMAGIC(LvTARG(sv)); |
1539 | } | |
5f05dabc | 1540 | return 0; |
1541 | } | |
1542 | ||
71be2cbc | 1543 | void |
864dbfa3 | 1544 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1545 | { |
e858de61 | 1546 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1547 | MAGIC *mg; |
1548 | SV *value = Nullsv; | |
71be2cbc | 1549 | |
68dc0745 | 1550 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1551 | return; |
68dc0745 | 1552 | if (mg->mg_obj) { |
74e13ce4 | 1553 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1554 | STRLEN n_a; |
74e13ce4 | 1555 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1556 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1557 | if (he) |
1558 | value = HeVAL(he); | |
1559 | } | |
1560 | else { | |
af7f9c15 | 1561 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1562 | if (svp) |
1563 | value = *svp; | |
1564 | } | |
3280af22 | 1565 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1566 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1567 | } |
68dc0745 | 1568 | else { |
1569 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1570 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1571 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1572 | else { | |
1573 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1574 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1575 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1576 | } |
1577 | } | |
3e3baf6d | 1578 | (void)SvREFCNT_inc(value); |
68dc0745 | 1579 | SvREFCNT_dec(LvTARG(sv)); |
1580 | LvTARG(sv) = value; | |
71be2cbc | 1581 | LvTARGLEN(sv) = 0; |
68dc0745 | 1582 | SvREFCNT_dec(mg->mg_obj); |
1583 | mg->mg_obj = Nullsv; | |
1584 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1585 | } |
1586 | ||
1587 | int | |
864dbfa3 | 1588 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1589 | { |
1590 | AV *av = (AV*)mg->mg_obj; | |
1591 | SV **svp = AvARRAY(av); | |
1592 | I32 i = AvFILLp(av); | |
1593 | while (i >= 0) { | |
1594 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1595 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1596 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1597 | /* XXX Should we check that it hasn't changed? */ |
1598 | SvRV(svp[i]) = 0; | |
155aba94 | 1599 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1600 | SvWEAKREF_off(svp[i]); |
1601 | svp[i] = &PL_sv_undef; | |
1602 | } | |
1603 | i--; | |
1604 | } | |
1605 | return 0; | |
1606 | } | |
1607 | ||
1608 | int | |
864dbfa3 | 1609 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1610 | { |
565764a8 | 1611 | mg->mg_len = -1; |
c6496cc7 | 1612 | SvSCREAM_off(sv); |
93a17b20 LW |
1613 | return 0; |
1614 | } | |
1615 | ||
1616 | int | |
864dbfa3 | 1617 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1618 | { |
463ee0b2 | 1619 | sv_unmagic(sv, 'B'); |
79072805 LW |
1620 | SvVALID_off(sv); |
1621 | return 0; | |
1622 | } | |
1623 | ||
1624 | int | |
864dbfa3 | 1625 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1626 | { |
1627 | sv_unmagic(sv, 'f'); | |
1628 | SvCOMPILED_off(sv); | |
1629 | return 0; | |
1630 | } | |
1631 | ||
1632 | int | |
864dbfa3 | 1633 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1634 | { |
1635 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1636 | ||
1637 | if (uf && uf->uf_set) | |
1638 | (*uf->uf_set)(uf->uf_index, sv); | |
1639 | return 0; | |
1640 | } | |
1641 | ||
c277df42 | 1642 | int |
864dbfa3 | 1643 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1644 | { |
1645 | regexp *re = (regexp *)mg->mg_obj; | |
1646 | ReREFCNT_dec(re); | |
1647 | return 0; | |
1648 | } | |
1649 | ||
7a4c00b4 | 1650 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1651 | int |
864dbfa3 | 1652 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1653 | { |
1654 | /* | |
838b5b74 | 1655 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1656 | * and vanished with a faint plop. |
1657 | */ | |
7a4c00b4 | 1658 | if (mg->mg_ptr) { |
1659 | Safefree(mg->mg_ptr); | |
1660 | mg->mg_ptr = NULL; | |
565764a8 | 1661 | mg->mg_len = -1; |
7a4c00b4 | 1662 | } |
bbce6d69 | 1663 | return 0; |
1664 | } | |
7a4c00b4 | 1665 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1666 | |
1667 | int | |
864dbfa3 | 1668 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1669 | { |
11343788 | 1670 | dTHR; |
79072805 LW |
1671 | register char *s; |
1672 | I32 i; | |
8990e307 | 1673 | STRLEN len; |
79072805 | 1674 | switch (*mg->mg_ptr) { |
748a9306 | 1675 | case '\001': /* ^A */ |
3280af22 | 1676 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1677 | break; |
49460fe6 NIS |
1678 | case '\003': /* ^C */ |
1679 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1680 | break; | |
1681 | ||
79072805 | 1682 | case '\004': /* ^D */ |
3280af22 | 1683 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1684 | DEBUG_x(dump_all()); |
1685 | break; | |
28f23441 | 1686 | case '\005': /* ^E */ |
cd39f2b6 | 1687 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1688 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1689 | #else |
cd39f2b6 JH |
1690 | # ifdef VMS |
1691 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1692 | # else |
cd39f2b6 JH |
1693 | # ifdef WIN32 |
1694 | SetLastError( SvIV(sv) ); | |
1695 | # else | |
1696 | # ifndef OS2 | |
f86702cc | 1697 | /* will anyone ever use this? */ |
1698 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1699 | # endif |
048c1ddf IZ |
1700 | # endif |
1701 | # endif | |
22fae026 | 1702 | #endif |
28f23441 | 1703 | break; |
79072805 | 1704 | case '\006': /* ^F */ |
3280af22 | 1705 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1706 | break; |
a0d0e21e | 1707 | case '\010': /* ^H */ |
3280af22 | 1708 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1709 | break; |
9d116dd7 | 1710 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1711 | if (PL_inplace) |
1712 | Safefree(PL_inplace); | |
79072805 | 1713 | if (SvOK(sv)) |
2d8e6c8d | 1714 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1715 | else |
3280af22 | 1716 | PL_inplace = Nullch; |
79072805 | 1717 | break; |
28f23441 | 1718 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1719 | if (*(mg->mg_ptr+1) == '\0') { |
1720 | if (PL_osname) | |
1721 | Safefree(PL_osname); | |
1722 | if (SvOK(sv)) | |
1723 | PL_osname = savepv(SvPV(sv,len)); | |
1724 | else | |
1725 | PL_osname = Nullch; | |
1726 | } | |
1727 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1728 | if (!PL_compiling.cop_io) | |
1729 | PL_compiling.cop_io = newSVsv(sv); | |
1730 | else | |
1731 | sv_setsv(PL_compiling.cop_io,sv); | |
1732 | } | |
28f23441 | 1733 | break; |
79072805 | 1734 | case '\020': /* ^P */ |
3280af22 | 1735 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1736 | if (PL_perldb && !PL_DBsingle) |
1737 | init_debugger(); | |
79072805 LW |
1738 | break; |
1739 | case '\024': /* ^T */ | |
88e89b8a | 1740 | #ifdef BIG_TIME |
6b88bc9c | 1741 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1742 | #else |
3280af22 | 1743 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1744 | #endif |
79072805 | 1745 | break; |
46487f74 | 1746 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1747 | if (*(mg->mg_ptr+1) == '\0') { |
1748 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1749 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1750 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1751 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1752 | } |
599cee73 | 1753 | } |
6a818117 | 1754 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1755 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1756 | if (!SvPOK(sv) && PL_localizing) { |
1757 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1758 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1759 | break; |
1760 | } | |
f4fc7782 | 1761 | { |
b5477537 | 1762 | STRLEN len, i; |
d3a7d8c7 | 1763 | int accumulate = 0 ; |
f4fc7782 | 1764 | int any_fatals = 0 ; |
d3a7d8c7 | 1765 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1766 | for (i = 0 ; i < len ; ++i) { |
1767 | accumulate |= ptr[i] ; | |
1768 | any_fatals |= (ptr[i] & 0xAA) ; | |
1769 | } | |
d3a7d8c7 GS |
1770 | if (!accumulate) |
1771 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1772 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1773 | PL_compiling.cop_warnings = pWARN_ALL; | |
1774 | PL_dowarn |= G_WARN_ONCE ; | |
1775 | } | |
d3a7d8c7 GS |
1776 | else { |
1777 | if (specialWARN(PL_compiling.cop_warnings)) | |
1778 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1779 | else | |
1780 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1781 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1782 | PL_dowarn |= G_WARN_ONCE ; | |
1783 | } | |
f4fc7782 | 1784 | |
d3a7d8c7 | 1785 | } |
4438c4b7 | 1786 | } |
971a9dd3 | 1787 | } |
46487f74 GS |
1788 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1789 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1790 | break; |
1791 | case '.': | |
3280af22 NIS |
1792 | if (PL_localizing) { |
1793 | if (PL_localizing == 1) | |
7766f137 | 1794 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1795 | } |
3280af22 NIS |
1796 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1797 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1798 | break; |
1799 | case '^': | |
3280af22 | 1800 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1801 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1802 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1803 | break; |
1804 | case '~': | |
3280af22 | 1805 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1806 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1807 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1808 | break; |
1809 | case '=': | |
3280af22 | 1810 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1811 | break; |
1812 | case '-': | |
3280af22 NIS |
1813 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1814 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1815 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1816 | break; |
1817 | case '%': | |
3280af22 | 1818 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1819 | break; |
1820 | case '|': | |
4b65379b | 1821 | { |
3280af22 | 1822 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1823 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1824 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1825 | else { | |
1826 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1827 | PerlIO *ofp = IoOFP(io); | |
1828 | if (ofp) | |
1829 | (void)PerlIO_flush(ofp); | |
1830 | IoFLAGS(io) |= IOf_FLUSH; | |
1831 | } | |
1832 | } | |
79072805 LW |
1833 | } |
1834 | break; | |
1835 | case '*': | |
463ee0b2 | 1836 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1837 | PL_multiline = (i != 0); |
79072805 LW |
1838 | break; |
1839 | case '/': | |
3280af22 NIS |
1840 | SvREFCNT_dec(PL_nrs); |
1841 | PL_nrs = newSVsv(sv); | |
1842 | SvREFCNT_dec(PL_rs); | |
1843 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1844 | break; |
1845 | case '\\': | |
3280af22 NIS |
1846 | if (PL_ors) |
1847 | Safefree(PL_ors); | |
009c130f GS |
1848 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
1849 | s = SvPV(sv,PL_orslen); | |
1850 | PL_ors = savepvn(s,PL_orslen); | |
1851 | } | |
e3c19b7b | 1852 | else { |
3280af22 NIS |
1853 | PL_ors = Nullch; |
1854 | PL_orslen = 0; | |
e3c19b7b | 1855 | } |
79072805 LW |
1856 | break; |
1857 | case ',': | |
3280af22 NIS |
1858 | if (PL_ofs) |
1859 | Safefree(PL_ofs); | |
1860 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1861 | break; |
1862 | case '#': | |
3280af22 NIS |
1863 | if (PL_ofmt) |
1864 | Safefree(PL_ofmt); | |
2d8e6c8d | 1865 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1866 | break; |
1867 | case '[': | |
3280af22 | 1868 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1869 | break; |
1870 | case '?': | |
ff0cee69 | 1871 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1872 | if (PL_localizing == 2) { |
1873 | PL_statusvalue = LvTARGOFF(sv); | |
1874 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1875 | } |
1876 | else | |
1877 | #endif | |
1878 | #ifdef VMSISH_STATUS | |
1879 | if (VMSISH_STATUS) | |
1880 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1881 | else | |
1882 | #endif | |
1883 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1884 | break; |
1885 | case '!': | |
78987ded | 1886 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1887 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1888 | break; |
1889 | case '<': | |
3280af22 NIS |
1890 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1891 | if (PL_delaymagic) { | |
1892 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1893 | break; /* don't do magic till later */ |
1894 | } | |
1895 | #ifdef HAS_SETRUID | |
b28d0864 | 1896 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1897 | #else |
1898 | #ifdef HAS_SETREUID | |
3280af22 | 1899 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1900 | #else |
85e6fe83 | 1901 | #ifdef HAS_SETRESUID |
b28d0864 | 1902 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1903 | #else |
b28d0864 NIS |
1904 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1905 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1906 | else { |
d8eceb89 | 1907 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1908 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1909 | } |
79072805 LW |
1910 | #endif |
1911 | #endif | |
85e6fe83 | 1912 | #endif |
d8eceb89 | 1913 | PL_uid = PerlProc_getuid(); |
3280af22 | 1914 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1915 | break; |
1916 | case '>': | |
3280af22 NIS |
1917 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1918 | if (PL_delaymagic) { | |
1919 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1920 | break; /* don't do magic till later */ |
1921 | } | |
1922 | #ifdef HAS_SETEUID | |
3280af22 | 1923 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1924 | #else |
1925 | #ifdef HAS_SETREUID | |
b28d0864 | 1926 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1927 | #else |
1928 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1929 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1930 | #else |
b28d0864 NIS |
1931 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1932 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1933 | else { |
e8ee3774 | 1934 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1935 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1936 | } |
79072805 LW |
1937 | #endif |
1938 | #endif | |
85e6fe83 | 1939 | #endif |
d8eceb89 | 1940 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1941 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1942 | break; |
1943 | case '(': | |
3280af22 NIS |
1944 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1945 | if (PL_delaymagic) { | |
1946 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1947 | break; /* don't do magic till later */ |
1948 | } | |
1949 | #ifdef HAS_SETRGID | |
b28d0864 | 1950 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1951 | #else |
1952 | #ifdef HAS_SETREGID | |
3280af22 | 1953 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1954 | #else |
1955 | #ifdef HAS_SETRESGID | |
b28d0864 | 1956 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1957 | #else |
b28d0864 NIS |
1958 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1959 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1960 | else { |
d8eceb89 | 1961 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 1962 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1963 | } |
79072805 LW |
1964 | #endif |
1965 | #endif | |
85e6fe83 | 1966 | #endif |
d8eceb89 | 1967 | PL_gid = PerlProc_getgid(); |
3280af22 | 1968 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1969 | break; |
1970 | case ')': | |
5cd24f17 | 1971 | #ifdef HAS_SETGROUPS |
1972 | { | |
2d8e6c8d | 1973 | char *p = SvPV(sv, len); |
5cd24f17 | 1974 | Groups_t gary[NGROUPS]; |
1975 | ||
5cd24f17 | 1976 | while (isSPACE(*p)) |
1977 | ++p; | |
2d4389e4 | 1978 | PL_egid = Atol(p); |
5cd24f17 | 1979 | for (i = 0; i < NGROUPS; ++i) { |
1980 | while (*p && !isSPACE(*p)) | |
1981 | ++p; | |
1982 | while (isSPACE(*p)) | |
1983 | ++p; | |
1984 | if (!*p) | |
1985 | break; | |
2d4389e4 | 1986 | gary[i] = Atol(p); |
5cd24f17 | 1987 | } |
8cc95fdb | 1988 | if (i) |
1989 | (void)setgroups(i, gary); | |
5cd24f17 | 1990 | } |
1991 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1992 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1993 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1994 | if (PL_delaymagic) { |
1995 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1996 | break; /* don't do magic till later */ |
1997 | } | |
1998 | #ifdef HAS_SETEGID | |
3280af22 | 1999 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2000 | #else |
2001 | #ifdef HAS_SETREGID | |
b28d0864 | 2002 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2003 | #else |
2004 | #ifdef HAS_SETRESGID | |
b28d0864 | 2005 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2006 | #else |
b28d0864 NIS |
2007 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2008 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2009 | else { |
d8eceb89 | 2010 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2011 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2012 | } |
79072805 LW |
2013 | #endif |
2014 | #endif | |
85e6fe83 | 2015 | #endif |
d8eceb89 | 2016 | PL_egid = PerlProc_getegid(); |
3280af22 | 2017 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2018 | break; |
2019 | case ':': | |
2d8e6c8d | 2020 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2021 | break; |
cd39f2b6 | 2022 | #ifndef MACOS_TRADITIONAL |
79072805 | 2023 | case '0': |
4bc88a62 PS |
2024 | #ifdef HAS_SETPROCTITLE |
2025 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2026 | * show a string from the process struct and provide | |
2027 | * the setproctitle() routine to manipulate that. */ | |
2028 | { | |
2029 | s = SvPV(sv, len); | |
9aad2c0e JH |
2030 | # if __FreeBSD_version >= 410001 |
2031 | /* The leading "-" removes the "perl: " prefix, | |
4bc88a62 PS |
2032 | * but not the "(perl) suffix from the ps(1) |
2033 | * output, because that's what ps(1) shows if the | |
2034 | * argv[] is modified. */ | |
2035 | setproctitle("-%s", s, len + 1); | |
9aad2c0e | 2036 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2037 | /* This doesn't really work if you assume that |
2038 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2039 | * because in ps(1) output the result will be like | |
2040 | * sprintf("perl: %s (perl)", s) | |
2041 | * I guess this is a security feature: | |
2042 | * one (a user process) cannot get rid of the original name. | |
2043 | * --jhi */ | |
2044 | setproctitle("%s", s); | |
2045 | # endif | |
2046 | } | |
2047 | #endif | |
3280af22 NIS |
2048 | if (!PL_origalen) { |
2049 | s = PL_origargv[0]; | |
79072805 LW |
2050 | s += strlen(s); |
2051 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2052 | for (i = 1; i < PL_origargc; i++) { |
2053 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2054 | #ifdef OS2 |
6b88bc9c | 2055 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2056 | #endif |
fb73857a | 2057 | ) |
379c4362 GS |
2058 | { |
2059 | ++s; | |
2060 | s += strlen(s); /* this one is ok too */ | |
2061 | } | |
fb73857a | 2062 | else |
2063 | break; | |
79072805 | 2064 | } |
bbce6d69 | 2065 | /* can grab env area too? */ |
3280af22 | 2066 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2067 | #ifdef OS2 |
6b88bc9c | 2068 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
ac27b0f5 | 2069 | #endif |
fb73857a | 2070 | )) { |
66b1d557 | 2071 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2072 | /* force copy of environment */ |
3280af22 | 2073 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2074 | if (PL_origenviron[i] == s + 1) { |
2075 | ++s; | |
2076 | s += strlen(s); | |
2077 | } | |
fb73857a | 2078 | else |
2079 | break; | |
79072805 | 2080 | } |
3280af22 | 2081 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2082 | } |
a0d0e21e | 2083 | s = SvPV_force(sv,len); |
8990e307 | 2084 | i = len; |
3280af22 NIS |
2085 | if (i >= PL_origalen) { |
2086 | i = PL_origalen; | |
fb73857a | 2087 | /* don't allow system to limit $0 seen by script */ |
2088 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2089 | Copy(s, PL_origargv[0], i, char); |
2090 | s = PL_origargv[0]+i; | |
fb73857a | 2091 | *s = '\0'; |
79072805 LW |
2092 | } |
2093 | else { | |
3280af22 NIS |
2094 | Copy(s, PL_origargv[0], i, char); |
2095 | s = PL_origargv[0]+i; | |
79072805 | 2096 | *s++ = '\0'; |
3280af22 | 2097 | while (++i < PL_origalen) |
8990e307 | 2098 | *s++ = ' '; |
3280af22 NIS |
2099 | s = PL_origargv[0]+i; |
2100 | for (i = 1; i < PL_origargc; i++) | |
2101 | PL_origargv[i] = Nullch; | |
79072805 LW |
2102 | } |
2103 | break; | |
cd39f2b6 | 2104 | #endif |
a863c7d1 MB |
2105 | #ifdef USE_THREADS |
2106 | case '@': | |
38a03e6e | 2107 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2108 | break; |
2109 | #endif /* USE_THREADS */ | |
79072805 LW |
2110 | } |
2111 | return 0; | |
2112 | } | |
2113 | ||
f93b4edd MB |
2114 | #ifdef USE_THREADS |
2115 | int | |
864dbfa3 | 2116 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd MB |
2117 | { |
2118 | dTHR; | |
b900a521 JH |
2119 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2120 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2121 | PTR2UV(thr), PTR2UV(sv));) | |
f93b4edd | 2122 | if (MgOWNER(mg)) |
cea2e8a9 | 2123 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2124 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2125 | COND_DESTROY(MgCONDP(mg)); | |
2126 | return 0; | |
2127 | } | |
2128 | #endif /* USE_THREADS */ | |
2129 | ||
79072805 | 2130 | I32 |
864dbfa3 | 2131 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2132 | { |
2133 | register char **sigv; | |
2134 | ||
22c35a8c | 2135 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2136 | if (strEQ(sig,*sigv)) |
22c35a8c | 2137 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2138 | #ifdef SIGCLD |
2139 | if (strEQ(sig,"CHLD")) | |
2140 | return SIGCLD; | |
2141 | #endif | |
2142 | #ifdef SIGCHLD | |
2143 | if (strEQ(sig,"CLD")) | |
2144 | return SIGCHLD; | |
2145 | #endif | |
2146 | return 0; | |
2147 | } | |
2148 | ||
84902520 TB |
2149 | static SV* sig_sv; |
2150 | ||
ecfc5424 | 2151 | Signal_t |
cea2e8a9 | 2152 | Perl_sighandler(int sig) |
79072805 | 2153 | { |
71d280e3 GS |
2154 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2155 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ | |
2156 | #else | |
cea2e8a9 | 2157 | dTHX; |
71d280e3 | 2158 | #endif |
79072805 | 2159 | dSP; |
00d579c5 | 2160 | GV *gv = Nullgv; |
a0d0e21e | 2161 | HV *st; |
3280af22 | 2162 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2163 | CV *cv = Nullcv; |
533c011a | 2164 | OP *myop = PL_op; |
84902520 | 2165 | U32 flags = 0; |
155aba94 | 2166 | I32 o_save_i = PL_savestack_ix; |
3280af22 | 2167 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2168 | |
2169 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
2170 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ | |
2171 | #endif | |
ac27b0f5 | 2172 | |
3280af22 | 2173 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2174 | flags |= 1; |
3280af22 | 2175 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2176 | flags |= 4; |
3280af22 | 2177 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2178 | flags |= 8; |
3280af22 | 2179 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2180 | flags |= 16; |
2181 | ||
22c35a8c | 2182 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2183 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2184 | PL_sig_name[sig]); |
ff0cee69 | 2185 | |
84902520 TB |
2186 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2187 | infinity, so we fix 4 (in fact 5): */ | |
2188 | if (flags & 1) { | |
3280af22 NIS |
2189 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2190 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2191 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2192 | } |
ac27b0f5 | 2193 | if (flags & 4) |
3280af22 | 2194 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2195 | if (flags & 8) { |
3280af22 NIS |
2196 | PL_retstack_ix++; |
2197 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2198 | } |
2199 | if (flags & 16) | |
3280af22 | 2200 | PL_scopestack_ix += 1; |
84902520 | 2201 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2202 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2203 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2204 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2205 | |
a0d0e21e | 2206 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2207 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2208 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2209 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2210 | : ((cv && CvGV(cv)) |
2211 | ? GvENAME(CvGV(cv)) | |
2212 | : "__ANON__"))); | |
2213 | goto cleanup; | |
79072805 LW |
2214 | } |
2215 | ||
22c35a8c GS |
2216 | if(PL_psig_name[sig]) { |
2217 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2218 | flags |= 64; |
2219 | sig_sv = sv; | |
2220 | } else { | |
ff0cee69 | 2221 | sv = sv_newmortal(); |
22c35a8c | 2222 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2223 | } |
e336de0d | 2224 | |
e788e7d3 | 2225 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2226 | PUSHMARK(SP); |
79072805 | 2227 | PUSHs(sv); |
79072805 | 2228 | PUTBACK; |
a0d0e21e | 2229 | |
864dbfa3 | 2230 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2231 | |
d3acc0f7 | 2232 | POPSTACK; |
00d579c5 | 2233 | cleanup: |
84902520 | 2234 | if (flags & 1) |
3280af22 | 2235 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2236 | if (flags & 4) |
3280af22 | 2237 | PL_markstack_ptr--; |
ac27b0f5 | 2238 | if (flags & 8) |
3280af22 | 2239 | PL_retstack_ix--; |
84902520 | 2240 | if (flags & 16) |
3280af22 | 2241 | PL_scopestack_ix -= 1; |
84902520 TB |
2242 | if (flags & 64) |
2243 | SvREFCNT_dec(sv); | |
533c011a | 2244 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2245 | |
3280af22 NIS |
2246 | PL_Sv = tSv; /* Restore global temporaries. */ |
2247 | PL_Xpv = tXpv; | |
79072805 LW |
2248 | return; |
2249 | } | |
4e35701f NIS |
2250 | |
2251 | ||
51371543 | 2252 | #ifdef PERL_OBJECT |
51371543 GS |
2253 | #include "XSUB.h" |
2254 | #endif | |
2255 | ||
2256 | static void | |
2257 | restore_magic(pTHXo_ void *p) | |
2258 | { | |
2259 | dTHR; | |
48944bdf | 2260 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2261 | SV* sv = mgs->mgs_sv; |
2262 | ||
2263 | if (!sv) | |
2264 | return; | |
2265 | ||
2266 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2267 | { | |
2268 | if (mgs->mgs_flags) | |
2269 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2270 | else | |
2271 | mg_magical(sv); | |
2272 | if (SvGMAGICAL(sv)) | |
2273 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2274 | } | |
2275 | ||
2276 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2277 | ||
2278 | /* If we're still on top of the stack, pop us off. (That condition | |
2279 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2280 | * if it's being called via leave_scope.) | |
2281 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2282 | * may leave alloc gunk on the savestack, and some code | |
2283 | * (e.g. sighandler) doesn't expect that... | |
2284 | */ | |
2285 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2286 | { | |
2287 | I32 popval = SSPOPINT; | |
c76ac1ee | 2288 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2289 | PL_savestack_ix -= 2; |
2290 | popval = SSPOPINT; | |
2291 | assert(popval == SAVEt_ALLOC); | |
2292 | popval = SSPOPINT; | |
2293 | PL_savestack_ix -= popval; | |
2294 | } | |
2295 | ||
2296 | } | |
2297 | ||
2298 | static void | |
2299 | unwind_handler_stack(pTHXo_ void *p) | |
2300 | { | |
2301 | dTHR; | |
2302 | U32 flags = *(U32*)p; | |
2303 | ||
2304 | if (flags & 1) | |
2305 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2306 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2307 | if (flags & 64) | |
2308 | SvREFCNT_dec(sig_sv); | |
2309 | } |