Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4eb8286e | 3 | * Copyright (c) 1991-1999, 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 | ||
455ece5e AD |
30 | #ifdef PERL_OBJECT |
31 | # define VTBL this->*vtbl | |
32 | #else | |
33 | # define VTBL *vtbl | |
455ece5e AD |
34 | #endif |
35 | ||
c07a80fd | 36 | /* |
37 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
38 | */ | |
39 | ||
40 | struct magic_state { | |
41 | SV* mgs_sv; | |
42 | U32 mgs_flags; | |
455ece5e | 43 | I32 mgs_ss_ix; |
c07a80fd | 44 | }; |
455ece5e | 45 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
46 | |
47 | STATIC void | |
cea2e8a9 | 48 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 49 | { |
46124e9e | 50 | dTHR; |
455ece5e | 51 | MGS* mgs; |
c07a80fd | 52 | assert(SvMAGICAL(sv)); |
53 | ||
cea2e8a9 | 54 | SAVEDESTRUCTOR(S_restore_magic, (void*)mgs_ix); |
455ece5e AD |
55 | |
56 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 57 | mgs->mgs_sv = sv; |
58 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 59 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 60 | |
61 | SvMAGICAL_off(sv); | |
62 | SvREADONLY_off(sv); | |
63 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 64 | } |
65 | ||
76e3520e | 66 | STATIC void |
cea2e8a9 | 67 | S_restore_magic(pTHX_ void *p) |
c07a80fd | 68 | { |
46124e9e | 69 | dTHR; |
455ece5e | 70 | MGS* mgs = SSPTR((I32)p, MGS*); |
c07a80fd | 71 | SV* sv = mgs->mgs_sv; |
72 | ||
455ece5e AD |
73 | if (!sv) |
74 | return; | |
75 | ||
c07a80fd | 76 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
77 | { | |
78 | if (mgs->mgs_flags) | |
79 | SvFLAGS(sv) |= mgs->mgs_flags; | |
80 | else | |
81 | mg_magical(sv); | |
82 | if (SvGMAGICAL(sv)) | |
83 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
84 | } | |
455ece5e AD |
85 | |
86 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
87 | ||
88 | /* If we're still on top of the stack, pop us off. (That condition | |
89 | * will be satisfied if restore_magic was called explicitly, but *not* | |
90 | * if it's being called via leave_scope.) | |
91 | * The reason for doing this is that otherwise, things like sv_2cv() | |
92 | * may leave alloc gunk on the savestack, and some code | |
93 | * (e.g. sighandler) doesn't expect that... | |
94 | */ | |
95 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
96 | { | |
3c8a4456 GS |
97 | I32 popval = SSPOPINT; |
98 | assert(popval == SAVEt_DESTRUCTOR); | |
455ece5e | 99 | PL_savestack_ix -= 2; |
3c8a4456 GS |
100 | popval = SSPOPINT; |
101 | assert(popval == SAVEt_ALLOC); | |
102 | popval = SSPOPINT; | |
103 | PL_savestack_ix -= popval; | |
455ece5e AD |
104 | } |
105 | ||
c07a80fd | 106 | } |
107 | ||
8990e307 | 108 | void |
864dbfa3 | 109 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
110 | { |
111 | MAGIC* mg; | |
112 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
113 | MGVTBL* vtbl = mg->mg_virtual; | |
114 | if (vtbl) { | |
76e3520e | 115 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
116 | SvGMAGICAL_on(sv); |
117 | if (vtbl->svt_set) | |
118 | SvSMAGICAL_on(sv); | |
76e3520e | 119 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 LW |
120 | SvRMAGICAL_on(sv); |
121 | } | |
122 | } | |
123 | } | |
124 | ||
79072805 | 125 | int |
864dbfa3 | 126 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 127 | { |
46124e9e | 128 | dTHR; |
455ece5e | 129 | I32 mgs_ix; |
79072805 | 130 | MAGIC* mg; |
c6496cc7 | 131 | MAGIC** mgp; |
760ac839 | 132 | int mgp_valid = 0; |
463ee0b2 | 133 | |
455ece5e AD |
134 | mgs_ix = SSNEW(sizeof(MGS)); |
135 | save_magic(mgs_ix, sv); | |
463ee0b2 | 136 | |
c6496cc7 | 137 | mgp = &SvMAGIC(sv); |
138 | while ((mg = *mgp) != 0) { | |
79072805 | 139 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e | 140 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
cea2e8a9 | 141 | (VTBL->svt_get)(aTHX_ sv, mg); |
c6496cc7 | 142 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
143 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
144 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 145 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 146 | } |
c6496cc7 | 147 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 148 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 149 | mgp = &mg->mg_moremagic; |
760ac839 LW |
150 | mgp_valid = 1; |
151 | } | |
152 | else | |
153 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 154 | } |
463ee0b2 | 155 | |
455ece5e | 156 | restore_magic((void*)mgs_ix); |
79072805 LW |
157 | return 0; |
158 | } | |
159 | ||
160 | int | |
864dbfa3 | 161 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 162 | { |
46124e9e | 163 | dTHR; |
455ece5e | 164 | I32 mgs_ix; |
79072805 | 165 | MAGIC* mg; |
463ee0b2 LW |
166 | MAGIC* nextmg; |
167 | ||
455ece5e AD |
168 | mgs_ix = SSNEW(sizeof(MGS)); |
169 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
170 | |
171 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 172 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 173 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
174 | if (mg->mg_flags & MGf_GSKIP) { |
175 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 176 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 177 | } |
76e3520e | 178 | if (vtbl && (vtbl->svt_set != NULL)) |
cea2e8a9 | 179 | (VTBL->svt_set)(aTHX_ sv, mg); |
79072805 | 180 | } |
463ee0b2 | 181 | |
455ece5e | 182 | restore_magic((void*)mgs_ix); |
79072805 LW |
183 | return 0; |
184 | } | |
185 | ||
186 | U32 | |
864dbfa3 | 187 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
188 | { |
189 | MAGIC* mg; | |
748a9306 | 190 | char *junk; |
463ee0b2 | 191 | STRLEN len; |
463ee0b2 | 192 | |
79072805 LW |
193 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
194 | MGVTBL* vtbl = mg->mg_virtual; | |
76e3520e | 195 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e | 196 | I32 mgs_ix; |
48e43a1c | 197 | |
455ece5e AD |
198 | mgs_ix = SSNEW(sizeof(MGS)); |
199 | save_magic(mgs_ix, sv); | |
a0d0e21e | 200 | /* omit MGf_GSKIP -- not changed here */ |
cea2e8a9 | 201 | len = (VTBL->svt_len)(aTHX_ sv, mg); |
455ece5e | 202 | restore_magic((void*)mgs_ix); |
85e6fe83 LW |
203 | return len; |
204 | } | |
205 | } | |
206 | ||
748a9306 | 207 | junk = SvPV(sv, len); |
463ee0b2 | 208 | return len; |
79072805 LW |
209 | } |
210 | ||
93965878 | 211 | I32 |
864dbfa3 | 212 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
213 | { |
214 | MAGIC* mg; | |
215 | I32 len; | |
216 | ||
217 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
218 | MGVTBL* vtbl = mg->mg_virtual; | |
565764a8 | 219 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e AD |
220 | I32 mgs_ix; |
221 | ||
222 | mgs_ix = SSNEW(sizeof(MGS)); | |
223 | save_magic(mgs_ix, sv); | |
93965878 | 224 | /* omit MGf_GSKIP -- not changed here */ |
cea2e8a9 | 225 | len = (VTBL->svt_len)(aTHX_ sv, mg); |
455ece5e | 226 | restore_magic((void*)mgs_ix); |
93965878 NIS |
227 | return len; |
228 | } | |
229 | } | |
230 | ||
231 | switch(SvTYPE(sv)) { | |
232 | case SVt_PVAV: | |
233 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
234 | return len; | |
235 | case SVt_PVHV: | |
236 | /* FIXME */ | |
237 | default: | |
cea2e8a9 | 238 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
239 | break; |
240 | } | |
241 | return 0; | |
242 | } | |
243 | ||
79072805 | 244 | int |
864dbfa3 | 245 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 246 | { |
455ece5e | 247 | I32 mgs_ix; |
79072805 | 248 | MAGIC* mg; |
463ee0b2 | 249 | |
455ece5e AD |
250 | mgs_ix = SSNEW(sizeof(MGS)); |
251 | save_magic(mgs_ix, sv); | |
463ee0b2 | 252 | |
79072805 LW |
253 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
254 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
255 | /* omit GSKIP -- never set here */ |
256 | ||
76e3520e | 257 | if (vtbl && (vtbl->svt_clear != NULL)) |
cea2e8a9 | 258 | (VTBL->svt_clear)(aTHX_ sv, mg); |
79072805 | 259 | } |
463ee0b2 | 260 | |
455ece5e | 261 | restore_magic((void*)mgs_ix); |
79072805 LW |
262 | return 0; |
263 | } | |
264 | ||
93a17b20 | 265 | MAGIC* |
864dbfa3 | 266 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
267 | { |
268 | MAGIC* mg; | |
93a17b20 LW |
269 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
270 | if (mg->mg_type == type) | |
271 | return mg; | |
272 | } | |
273 | return 0; | |
274 | } | |
275 | ||
79072805 | 276 | int |
864dbfa3 | 277 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 278 | { |
463ee0b2 | 279 | int count = 0; |
79072805 | 280 | MAGIC* mg; |
463ee0b2 LW |
281 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
282 | if (isUPPER(mg->mg_type)) { | |
33c27489 GS |
283 | sv_magic(nsv, |
284 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj, | |
285 | toLOWER(mg->mg_type), key, klen); | |
463ee0b2 | 286 | count++; |
79072805 | 287 | } |
79072805 | 288 | } |
463ee0b2 | 289 | return count; |
79072805 LW |
290 | } |
291 | ||
292 | int | |
864dbfa3 | 293 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
294 | { |
295 | MAGIC* mg; | |
296 | MAGIC* moremagic; | |
297 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
298 | MGVTBL* vtbl = mg->mg_virtual; | |
299 | moremagic = mg->mg_moremagic; | |
76e3520e | 300 | if (vtbl && (vtbl->svt_free != NULL)) |
cea2e8a9 | 301 | (VTBL->svt_free)(aTHX_ sv, mg); |
93a17b20 | 302 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 303 | if (mg->mg_len >= 0) |
88e89b8a | 304 | Safefree(mg->mg_ptr); |
565764a8 | 305 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 306 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 307 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 308 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
309 | Safefree(mg); |
310 | } | |
311 | SvMAGIC(sv) = 0; | |
312 | return 0; | |
313 | } | |
314 | ||
315 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
316 | #include <signal.h> | |
317 | #endif | |
318 | ||
942e002e | 319 | U32 |
864dbfa3 | 320 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
321 | { |
322 | dTHR; | |
323 | register char *s; | |
324 | register I32 i; | |
325 | register REGEXP *rx; | |
326 | char *t; | |
327 | ||
8f580fb8 IZ |
328 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
329 | if (mg->mg_obj) /* @+ */ | |
330 | return rx->nparens; | |
331 | else /* @- */ | |
332 | return rx->lastparen; | |
333 | } | |
334 | ||
942e002e | 335 | return (U32)-1; |
6cef1e77 IZ |
336 | } |
337 | ||
338 | int | |
864dbfa3 | 339 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
340 | { |
341 | dTHR; | |
342 | register I32 paren; | |
cf93c79d | 343 | register I32 s; |
6cef1e77 IZ |
344 | register I32 i; |
345 | register REGEXP *rx; | |
cf93c79d | 346 | I32 t; |
6cef1e77 IZ |
347 | |
348 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
349 | paren = mg->mg_len; | |
350 | if (paren < 0) | |
351 | return 0; | |
352 | if (paren <= rx->nparens && | |
cf93c79d IZ |
353 | (s = rx->startp[paren]) != -1 && |
354 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
355 | { |
356 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 357 | i = t; |
6cef1e77 | 358 | else /* @- */ |
cf93c79d | 359 | i = s; |
6cef1e77 IZ |
360 | sv_setiv(sv,i); |
361 | } | |
362 | } | |
363 | return 0; | |
364 | } | |
365 | ||
93a17b20 | 366 | U32 |
864dbfa3 | 367 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 368 | { |
a863c7d1 | 369 | dTHR; |
93a17b20 LW |
370 | register I32 paren; |
371 | register char *s; | |
372 | register I32 i; | |
d9f97599 | 373 | register REGEXP *rx; |
748a9306 | 374 | char *t; |
93a17b20 LW |
375 | |
376 | switch (*mg->mg_ptr) { | |
377 | case '1': case '2': case '3': case '4': | |
378 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 379 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
380 | I32 s1, t1; |
381 | ||
93a17b20 LW |
382 | paren = atoi(mg->mg_ptr); |
383 | getparen: | |
d9f97599 | 384 | if (paren <= rx->nparens && |
cf93c79d IZ |
385 | (s1 = rx->startp[paren]) != -1 && |
386 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 387 | { |
cf93c79d | 388 | i = t1 - s1; |
71be2cbc | 389 | if (i >= 0) |
93a17b20 | 390 | return i; |
93a17b20 | 391 | } |
93a17b20 | 392 | } |
748a9306 | 393 | return 0; |
93a17b20 | 394 | case '+': |
3280af22 | 395 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 396 | paren = rx->lastparen; |
13f57bf8 CS |
397 | if (paren) |
398 | goto getparen; | |
93a17b20 | 399 | } |
748a9306 | 400 | return 0; |
93a17b20 | 401 | case '`': |
3280af22 | 402 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
403 | if (rx->startp[0] != -1) { |
404 | i = rx->startp[0]; | |
71be2cbc | 405 | if (i >= 0) |
93a17b20 | 406 | return i; |
93a17b20 | 407 | } |
93a17b20 | 408 | } |
748a9306 | 409 | return 0; |
93a17b20 | 410 | case '\'': |
3280af22 | 411 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
412 | if (rx->endp[0] != -1) { |
413 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 414 | if (i >= 0) |
5cd24f17 | 415 | return i; |
93a17b20 | 416 | } |
93a17b20 | 417 | } |
748a9306 | 418 | return 0; |
93a17b20 | 419 | case ',': |
3280af22 | 420 | return (STRLEN)PL_ofslen; |
93a17b20 | 421 | case '\\': |
3280af22 | 422 | return (STRLEN)PL_orslen; |
93a17b20 LW |
423 | } |
424 | magic_get(sv,mg); | |
2d8e6c8d GS |
425 | if (!SvPOK(sv) && SvNIOK(sv)) { |
426 | STRLEN n_a; | |
427 | sv_2pv(sv, &n_a); | |
428 | } | |
93a17b20 LW |
429 | if (SvPOK(sv)) |
430 | return SvCUR(sv); | |
431 | return 0; | |
432 | } | |
433 | ||
79072805 | 434 | int |
864dbfa3 | 435 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 436 | { |
a863c7d1 | 437 | dTHR; |
79072805 LW |
438 | register I32 paren; |
439 | register char *s; | |
440 | register I32 i; | |
d9f97599 | 441 | register REGEXP *rx; |
748a9306 | 442 | char *t; |
79072805 LW |
443 | |
444 | switch (*mg->mg_ptr) { | |
748a9306 | 445 | case '\001': /* ^A */ |
3280af22 | 446 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 447 | break; |
599cee73 | 448 | case '\002': /* ^B */ |
0453d815 PM |
449 | if (PL_curcop->cop_warnings == WARN_NONE || |
450 | PL_curcop->cop_warnings == WARN_STD) | |
451 | { | |
599cee73 | 452 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
0453d815 PM |
453 | } |
454 | else if (PL_curcop->cop_warnings == WARN_ALL) { | |
599cee73 | 455 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
0453d815 PM |
456 | } |
457 | else { | |
e24b16f9 | 458 | sv_setsv(sv, PL_curcop->cop_warnings); |
0453d815 | 459 | } |
599cee73 | 460 | break; |
49460fe6 NIS |
461 | case '\003': /* ^C */ |
462 | sv_setiv(sv, (IV)PL_minus_c); | |
463 | break; | |
464 | ||
79072805 | 465 | case '\004': /* ^D */ |
3280af22 | 466 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 | 467 | break; |
28f23441 | 468 | case '\005': /* ^E */ |
469 | #ifdef VMS | |
470 | { | |
471 | # include <descrip.h> | |
472 | # include <starlet.h> | |
473 | char msg[255]; | |
474 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 475 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 476 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
477 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
478 | else | |
479 | sv_setpv(sv,""); | |
480 | } | |
481 | #else | |
88e89b8a | 482 | #ifdef OS2 |
fb73857a | 483 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 484 | sv_setnv(sv, (NV)errno); |
fb73857a | 485 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
486 | } else { | |
017f25f1 IZ |
487 | if (errno != errno_isOS2) { |
488 | int tmp = _syserrno(); | |
489 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
490 | Perl_rc = tmp; | |
491 | } | |
65202027 | 492 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 493 | sv_setpv(sv, os2error(Perl_rc)); |
494 | } | |
88e89b8a | 495 | #else |
22fae026 TM |
496 | #ifdef WIN32 |
497 | { | |
498 | DWORD dwErr = GetLastError(); | |
65202027 | 499 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 500 | if (dwErr) |
76e3520e | 501 | { |
0cb96387 | 502 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 503 | } |
22fae026 TM |
504 | else |
505 | sv_setpv(sv, ""); | |
506 | SetLastError(dwErr); | |
507 | } | |
508 | #else | |
65202027 | 509 | sv_setnv(sv, (NV)errno); |
28f23441 | 510 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
511 | #endif | |
88e89b8a | 512 | #endif |
22fae026 | 513 | #endif |
946ec16e | 514 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 515 | break; |
79072805 | 516 | case '\006': /* ^F */ |
3280af22 | 517 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 518 | break; |
a0d0e21e | 519 | case '\010': /* ^H */ |
3280af22 | 520 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 521 | break; |
9d116dd7 | 522 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
523 | if (PL_inplace) |
524 | sv_setpv(sv, PL_inplace); | |
79072805 | 525 | else |
3280af22 | 526 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 527 | break; |
28f23441 | 528 | case '\017': /* ^O */ |
3280af22 | 529 | sv_setpv(sv, PL_osname); |
28f23441 | 530 | break; |
79072805 | 531 | case '\020': /* ^P */ |
3280af22 | 532 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 533 | break; |
fb73857a | 534 | case '\023': /* ^S */ |
d58bf5aa MB |
535 | { |
536 | dTHR; | |
3280af22 | 537 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 538 | SvOK_off(sv); |
3280af22 | 539 | else if (PL_in_eval) |
d58bf5aa MB |
540 | sv_setiv(sv, 1); |
541 | else | |
542 | sv_setiv(sv, 0); | |
543 | } | |
fb73857a | 544 | break; |
79072805 | 545 | case '\024': /* ^T */ |
88e89b8a | 546 | #ifdef BIG_TIME |
6b88bc9c | 547 | sv_setnv(sv, PL_basetime); |
88e89b8a | 548 | #else |
3280af22 | 549 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 550 | #endif |
79072805 LW |
551 | break; |
552 | case '\027': /* ^W */ | |
0453d815 | 553 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
79072805 LW |
554 | break; |
555 | case '1': case '2': case '3': case '4': | |
556 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 557 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
558 | I32 s1, t1; |
559 | ||
a863c7d1 MB |
560 | /* |
561 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
562 | * XXX Does the new way break anything? | |
563 | */ | |
564 | paren = atoi(mg->mg_ptr); | |
79072805 | 565 | getparen: |
d9f97599 | 566 | if (paren <= rx->nparens && |
cf93c79d IZ |
567 | (s1 = rx->startp[paren]) != -1 && |
568 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 569 | { |
cf93c79d IZ |
570 | i = t1 - s1; |
571 | s = rx->subbeg + s1; | |
13f57bf8 | 572 | getrx: |
748a9306 | 573 | if (i >= 0) { |
13f57bf8 | 574 | bool was_tainted; |
3280af22 NIS |
575 | if (PL_tainting) { |
576 | was_tainted = PL_tainted; | |
577 | PL_tainted = FALSE; | |
13f57bf8 | 578 | } |
cf93c79d | 579 | sv_setpvn(sv, s, i); |
3280af22 NIS |
580 | if (PL_tainting) |
581 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
582 | break; |
583 | } | |
79072805 | 584 | } |
79072805 | 585 | } |
3280af22 | 586 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
587 | break; |
588 | case '+': | |
3280af22 | 589 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 590 | paren = rx->lastparen; |
a0d0e21e LW |
591 | if (paren) |
592 | goto getparen; | |
79072805 | 593 | } |
3280af22 | 594 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
595 | break; |
596 | case '`': | |
3280af22 | 597 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
598 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
599 | i = rx->startp[0]; | |
13f57bf8 | 600 | goto getrx; |
79072805 | 601 | } |
79072805 | 602 | } |
3280af22 | 603 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
604 | break; |
605 | case '\'': | |
3280af22 | 606 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
607 | if (rx->subbeg && rx->endp[0] != -1) { |
608 | s = rx->subbeg + rx->endp[0]; | |
609 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 610 | goto getrx; |
79072805 | 611 | } |
79072805 | 612 | } |
3280af22 | 613 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
614 | break; |
615 | case '.': | |
616 | #ifndef lint | |
3280af22 NIS |
617 | if (GvIO(PL_last_in_gv)) { |
618 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
619 | } |
620 | #endif | |
621 | break; | |
622 | case '?': | |
809a5acc | 623 | { |
809a5acc | 624 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 625 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
626 | LvTARGOFF(sv) = PL_statusvalue; |
627 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 628 | #endif |
809a5acc | 629 | } |
79072805 LW |
630 | break; |
631 | case '^': | |
3280af22 | 632 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
633 | if (s) |
634 | sv_setpv(sv,s); | |
635 | else { | |
3280af22 | 636 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
637 | sv_catpv(sv,"_TOP"); |
638 | } | |
639 | break; | |
640 | case '~': | |
3280af22 | 641 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 642 | if (!s) |
3280af22 | 643 | s = GvENAME(PL_defoutgv); |
79072805 LW |
644 | sv_setpv(sv,s); |
645 | break; | |
646 | #ifndef lint | |
647 | case '=': | |
3280af22 | 648 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
649 | break; |
650 | case '-': | |
3280af22 | 651 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
652 | break; |
653 | case '%': | |
3280af22 | 654 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
655 | break; |
656 | #endif | |
657 | case ':': | |
658 | break; | |
659 | case '/': | |
660 | break; | |
661 | case '[': | |
3280af22 | 662 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
663 | break; |
664 | case '|': | |
3280af22 | 665 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
666 | break; |
667 | case ',': | |
3280af22 | 668 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
669 | break; |
670 | case '\\': | |
3280af22 | 671 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
672 | break; |
673 | case '#': | |
3280af22 | 674 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
675 | break; |
676 | case '!': | |
a5f75d66 | 677 | #ifdef VMS |
65202027 | 678 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 679 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 680 | #else |
88e89b8a | 681 | { |
682 | int saveerrno = errno; | |
65202027 | 683 | sv_setnv(sv, (NV)errno); |
88e89b8a | 684 | #ifdef OS2 |
685 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
686 | else | |
a5f75d66 | 687 | #endif |
2304df62 | 688 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 689 | errno = saveerrno; |
690 | } | |
691 | #endif | |
946ec16e | 692 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
693 | break; |
694 | case '<': | |
3280af22 | 695 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
696 | break; |
697 | case '>': | |
3280af22 | 698 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
699 | break; |
700 | case '(': | |
3280af22 | 701 | sv_setiv(sv, (IV)PL_gid); |
cea2e8a9 | 702 | Perl_sv_setpvf(aTHX_ sv, "%Vd", (IV)PL_gid); |
79072805 LW |
703 | goto add_groups; |
704 | case ')': | |
3280af22 | 705 | sv_setiv(sv, (IV)PL_egid); |
cea2e8a9 | 706 | Perl_sv_setpvf(aTHX_ sv, "%Vd", (IV)PL_egid); |
79072805 | 707 | add_groups: |
79072805 | 708 | #ifdef HAS_GETGROUPS |
79072805 | 709 | { |
a0d0e21e | 710 | Groups_t gary[NGROUPS]; |
79072805 | 711 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 712 | while (--i >= 0) |
cea2e8a9 | 713 | Perl_sv_catpvf(aTHX_ sv, " %Vd", (IV)gary[i]); |
79072805 LW |
714 | } |
715 | #endif | |
29355cf7 | 716 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
717 | break; |
718 | case '*': | |
719 | break; | |
720 | case '0': | |
721 | break; | |
a863c7d1 MB |
722 | #ifdef USE_THREADS |
723 | case '@': | |
38a03e6e | 724 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
725 | break; |
726 | #endif /* USE_THREADS */ | |
79072805 | 727 | } |
a0d0e21e | 728 | return 0; |
79072805 LW |
729 | } |
730 | ||
731 | int | |
864dbfa3 | 732 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
733 | { |
734 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
735 | ||
736 | if (uf && uf->uf_val) | |
737 | (*uf->uf_val)(uf->uf_index, sv); | |
738 | return 0; | |
739 | } | |
740 | ||
741 | int | |
864dbfa3 | 742 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
743 | { |
744 | register char *s; | |
88e89b8a | 745 | char *ptr; |
5aabfad6 | 746 | STRLEN len, klen; |
a0d0e21e | 747 | I32 i; |
1e422769 | 748 | |
a0d0e21e | 749 | s = SvPV(sv,len); |
5aabfad6 | 750 | ptr = MgPV(mg,klen); |
88e89b8a | 751 | my_setenv(ptr, s); |
1e422769 | 752 | |
a0d0e21e LW |
753 | #ifdef DYNAMIC_ENV_FETCH |
754 | /* We just undefd an environment var. Is a replacement */ | |
755 | /* waiting in the wings? */ | |
756 | if (!len) { | |
5aabfad6 | 757 | SV **valp; |
6b88bc9c | 758 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 759 | s = SvPV(*valp, len); |
a0d0e21e LW |
760 | } |
761 | #endif | |
1e422769 | 762 | |
39e571d4 | 763 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
764 | /* And you'll never guess what the dog had */ |
765 | /* in its mouth... */ | |
3280af22 | 766 | if (PL_tainting) { |
1e422769 | 767 | MgTAINTEDDIR_off(mg); |
768 | #ifdef VMS | |
5aabfad6 | 769 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 770 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
771 | struct stat sbuf; | |
772 | int i = 0, j = 0; | |
773 | ||
774 | do { /* DCL$PATH may be a search list */ | |
775 | while (1) { /* as may dev portion of any element */ | |
776 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
777 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
778 | cando_by_name(S_IWUSR,0,elt) ) { | |
779 | MgTAINTEDDIR_on(mg); | |
780 | return 0; | |
781 | } | |
782 | } | |
783 | if ((cp = strchr(elt, ':')) != Nullch) | |
784 | *cp = '\0'; | |
785 | if (my_trnlnm(elt, eltbuf, j++)) | |
786 | elt = eltbuf; | |
787 | else | |
788 | break; | |
789 | } | |
790 | j = 0; | |
791 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
792 | } | |
793 | #endif /* VMS */ | |
5aabfad6 | 794 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 795 | char *strend = s + len; |
463ee0b2 LW |
796 | |
797 | while (s < strend) { | |
96827780 | 798 | char tmpbuf[256]; |
1e422769 | 799 | struct stat st; |
96827780 | 800 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 801 | s, strend, ':', &i); |
463ee0b2 | 802 | s++; |
96827780 MB |
803 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
804 | || *tmpbuf != '/' | |
c6ed36e1 | 805 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 806 | MgTAINTEDDIR_on(mg); |
1e422769 | 807 | return 0; |
808 | } | |
463ee0b2 | 809 | } |
79072805 LW |
810 | } |
811 | } | |
39e571d4 | 812 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 813 | |
79072805 LW |
814 | return 0; |
815 | } | |
816 | ||
817 | int | |
864dbfa3 | 818 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 819 | { |
2d8e6c8d GS |
820 | STRLEN n_a; |
821 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
822 | return 0; |
823 | } | |
824 | ||
88e89b8a | 825 | int |
864dbfa3 | 826 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 827 | { |
828 | #if defined(VMS) | |
cea2e8a9 | 829 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 830 | #else |
d58bf5aa | 831 | dTHR; |
3280af22 | 832 | if (PL_localizing) { |
fb73857a | 833 | HE* entry; |
2d8e6c8d | 834 | STRLEN n_a; |
fb73857a | 835 | magic_clear_all_env(sv,mg); |
836 | hv_iterinit((HV*)sv); | |
837 | while (entry = hv_iternext((HV*)sv)) { | |
838 | I32 keylen; | |
839 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 840 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 841 | } |
842 | } | |
843 | #endif | |
844 | return 0; | |
845 | } | |
846 | ||
847 | int | |
864dbfa3 | 848 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 849 | { |
3e3baf6d | 850 | #if defined(VMS) |
cea2e8a9 | 851 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 852 | #else |
f2517201 | 853 | # ifdef WIN32 |
3e3baf6d TB |
854 | char *envv = GetEnvironmentStrings(); |
855 | char *cur = envv; | |
856 | STRLEN len; | |
857 | while (*cur) { | |
858 | char *end = strchr(cur,'='); | |
859 | if (end && end != cur) { | |
860 | *end = '\0'; | |
861 | my_setenv(cur,Nullch); | |
862 | *end = '='; | |
ac5c734f | 863 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
864 | } |
865 | else if ((len = strlen(cur))) | |
866 | cur += len+1; | |
867 | } | |
868 | FreeEnvironmentStrings(envv); | |
f2517201 GS |
869 | # else |
870 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
871 | I32 i; |
872 | ||
3280af22 | 873 | if (environ == PL_origenviron) |
f2517201 | 874 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
875 | else |
876 | for (i = 0; environ[i]; i++) | |
f2517201 GS |
877 | safesysfree(environ[i]); |
878 | # endif /* PERL_USE_SAFE_PUTENV */ | |
879 | ||
66b1d557 HM |
880 | environ[0] = Nullch; |
881 | ||
f2517201 GS |
882 | # endif /* WIN32 */ |
883 | #endif /* VMS */ | |
3e3baf6d | 884 | return 0; |
66b1d557 HM |
885 | } |
886 | ||
887 | int | |
864dbfa3 | 888 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 889 | { |
890 | I32 i; | |
2d8e6c8d | 891 | STRLEN n_a; |
88e89b8a | 892 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 893 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 894 | if (i) { |
22c35a8c GS |
895 | if(PL_psig_ptr[i]) |
896 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 897 | else { |
ff68c719 | 898 | Sighandler_t sigstate = rsignal_state(i); |
899 | ||
88e89b8a | 900 | /* cache state so we don't fetch it again */ |
ff68c719 | 901 | if(sigstate == SIG_IGN) |
88e89b8a | 902 | sv_setpv(sv,"IGNORE"); |
903 | else | |
3280af22 | 904 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 905 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 906 | SvTEMP_off(sv); |
907 | } | |
908 | } | |
909 | return 0; | |
910 | } | |
911 | int | |
864dbfa3 | 912 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 913 | { |
914 | I32 i; | |
2d8e6c8d | 915 | STRLEN n_a; |
88e89b8a | 916 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 917 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 918 | if (i) { |
22c35a8c GS |
919 | if(PL_psig_ptr[i]) { |
920 | SvREFCNT_dec(PL_psig_ptr[i]); | |
921 | PL_psig_ptr[i]=0; | |
88e89b8a | 922 | } |
22c35a8c GS |
923 | if(PL_psig_name[i]) { |
924 | SvREFCNT_dec(PL_psig_name[i]); | |
925 | PL_psig_name[i]=0; | |
88e89b8a | 926 | } |
927 | } | |
928 | return 0; | |
929 | } | |
3d37d572 | 930 | |
85e6fe83 | 931 | int |
864dbfa3 | 932 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 933 | { |
11343788 | 934 | dTHR; |
79072805 LW |
935 | register char *s; |
936 | I32 i; | |
748a9306 | 937 | SV** svp; |
e72dc28c | 938 | STRLEN len; |
a0d0e21e | 939 | |
e72dc28c | 940 | s = MgPV(mg,len); |
748a9306 LW |
941 | if (*s == '_') { |
942 | if (strEQ(s,"__DIE__")) | |
3280af22 | 943 | svp = &PL_diehook; |
748a9306 | 944 | else if (strEQ(s,"__WARN__")) |
3280af22 | 945 | svp = &PL_warnhook; |
748a9306 | 946 | else if (strEQ(s,"__PARSE__")) |
3280af22 | 947 | svp = &PL_parsehook; |
748a9306 | 948 | else |
cea2e8a9 | 949 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 950 | i = 0; |
4633a7c4 LW |
951 | if (*svp) { |
952 | SvREFCNT_dec(*svp); | |
953 | *svp = 0; | |
954 | } | |
748a9306 LW |
955 | } |
956 | else { | |
957 | i = whichsig(s); /* ...no, a brick */ | |
958 | if (!i) { | |
599cee73 | 959 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
cea2e8a9 | 960 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
961 | return 0; |
962 | } | |
22c35a8c GS |
963 | SvREFCNT_dec(PL_psig_name[i]); |
964 | SvREFCNT_dec(PL_psig_ptr[i]); | |
965 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 966 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 967 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 968 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 969 | } |
a0d0e21e | 970 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 971 | if (i) |
3280af22 | 972 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
973 | else |
974 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
975 | return 0; |
976 | } | |
e72dc28c | 977 | s = SvPV_force(sv,len); |
748a9306 LW |
978 | if (strEQ(s,"IGNORE")) { |
979 | if (i) | |
ff68c719 | 980 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
981 | else |
982 | *svp = 0; | |
983 | } | |
984 | else if (strEQ(s,"DEFAULT") || !*s) { | |
985 | if (i) | |
ff68c719 | 986 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
987 | else |
988 | *svp = 0; | |
989 | } | |
79072805 | 990 | else { |
5aabfad6 | 991 | /* |
992 | * We should warn if HINT_STRICT_REFS, but without | |
993 | * access to a known hint bit in a known OP, we can't | |
994 | * tell whether HINT_STRICT_REFS is in force or not. | |
995 | */ | |
46fc3d4c | 996 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 997 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 998 | if (i) |
3280af22 | 999 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1000 | else |
1001 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1002 | } |
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | int | |
864dbfa3 | 1007 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1008 | { |
3280af22 | 1009 | PL_sub_generation++; |
463ee0b2 LW |
1010 | return 0; |
1011 | } | |
1012 | ||
1013 | int | |
864dbfa3 | 1014 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1015 | { |
a0d0e21e | 1016 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1017 | PL_amagic_generation++; |
463ee0b2 | 1018 | |
a0d0e21e LW |
1019 | return 0; |
1020 | } | |
463ee0b2 | 1021 | |
946ec16e | 1022 | int |
864dbfa3 | 1023 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1024 | { |
1025 | HV *hv = (HV*)LvTARG(sv); | |
1026 | HE *entry; | |
1027 | I32 i = 0; | |
1028 | ||
1029 | if (hv) { | |
1030 | (void) hv_iterinit(hv); | |
33c27489 | 1031 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1032 | i = HvKEYS(hv); |
1033 | else { | |
1034 | /*SUPPRESS 560*/ | |
1035 | while (entry = hv_iternext(hv)) { | |
1036 | i++; | |
1037 | } | |
1038 | } | |
1039 | } | |
1040 | ||
1041 | sv_setiv(sv, (IV)i); | |
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | int | |
864dbfa3 | 1046 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1047 | { |
1048 | if (LvTARG(sv)) { | |
1049 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1050 | } |
1051 | return 0; | |
93965878 | 1052 | } |
946ec16e | 1053 | |
e336de0d | 1054 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1055 | STATIC int |
cea2e8a9 | 1056 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1057 | { |
1058 | dSP; | |
463ee0b2 | 1059 | |
924508f0 GS |
1060 | PUSHMARK(SP); |
1061 | EXTEND(SP, n); | |
33c27489 | 1062 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1063 | if (n > 1) { |
1064 | if (mg->mg_ptr) { | |
565764a8 | 1065 | if (mg->mg_len >= 0) |
79cb57f6 | 1066 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1067 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1068 | PUSHs((SV*)mg->mg_ptr); |
1069 | } | |
1070 | else if (mg->mg_type == 'p') { | |
565764a8 | 1071 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1072 | } |
1073 | } | |
1074 | if (n > 2) { | |
1075 | PUSHs(val); | |
88e89b8a | 1076 | } |
463ee0b2 LW |
1077 | PUTBACK; |
1078 | ||
864dbfa3 | 1079 | return call_method(meth, flags); |
946ec16e | 1080 | } |
1081 | ||
76e3520e | 1082 | STATIC int |
cea2e8a9 | 1083 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1084 | { |
1085 | dSP; | |
463ee0b2 | 1086 | |
a0d0e21e LW |
1087 | ENTER; |
1088 | SAVETMPS; | |
e788e7d3 | 1089 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1090 | |
33c27489 | 1091 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1092 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1093 | } |
463ee0b2 | 1094 | |
d3acc0f7 | 1095 | POPSTACK; |
a0d0e21e LW |
1096 | FREETMPS; |
1097 | LEAVE; | |
1098 | return 0; | |
1099 | } | |
463ee0b2 | 1100 | |
a0d0e21e | 1101 | int |
864dbfa3 | 1102 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1103 | { |
1104 | magic_methpack(sv,mg,"FETCH"); | |
1105 | if (mg->mg_ptr) | |
1106 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1107 | return 0; |
1108 | } | |
1109 | ||
1110 | int | |
864dbfa3 | 1111 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1112 | { |
1113 | dSP; | |
a60c0954 | 1114 | ENTER; |
e788e7d3 | 1115 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1116 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1117 | POPSTACK; |
a60c0954 | 1118 | LEAVE; |
463ee0b2 LW |
1119 | return 0; |
1120 | } | |
1121 | ||
1122 | int | |
864dbfa3 | 1123 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1124 | { |
a0d0e21e LW |
1125 | return magic_methpack(sv,mg,"DELETE"); |
1126 | } | |
463ee0b2 | 1127 | |
93965878 NIS |
1128 | |
1129 | U32 | |
864dbfa3 | 1130 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 | 1131 | { |
e336de0d | 1132 | dSP; |
93965878 NIS |
1133 | U32 retval = 0; |
1134 | ||
1135 | ENTER; | |
1136 | SAVETMPS; | |
e788e7d3 | 1137 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1138 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1139 | sv = *PL_stack_sp--; |
a60c0954 | 1140 | retval = (U32) SvIV(sv)-1; |
93965878 | 1141 | } |
d3acc0f7 | 1142 | POPSTACK; |
93965878 NIS |
1143 | FREETMPS; |
1144 | LEAVE; | |
1145 | return retval; | |
1146 | } | |
1147 | ||
cea2e8a9 GS |
1148 | int |
1149 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1150 | { |
1151 | dSP; | |
463ee0b2 | 1152 | |
e336de0d | 1153 | ENTER; |
e788e7d3 | 1154 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1155 | PUSHMARK(SP); |
33c27489 | 1156 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1157 | PUTBACK; |
864dbfa3 | 1158 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1159 | POPSTACK; |
a60c0954 | 1160 | LEAVE; |
463ee0b2 LW |
1161 | return 0; |
1162 | } | |
1163 | ||
1164 | int | |
864dbfa3 | 1165 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1166 | { |
463ee0b2 | 1167 | dSP; |
a0d0e21e | 1168 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1169 | |
1170 | ENTER; | |
a0d0e21e | 1171 | SAVETMPS; |
e788e7d3 | 1172 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1173 | PUSHMARK(SP); |
1174 | EXTEND(SP, 2); | |
33c27489 | 1175 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1176 | if (SvOK(key)) |
1177 | PUSHs(key); | |
1178 | PUTBACK; | |
1179 | ||
864dbfa3 | 1180 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1181 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1182 | |
d3acc0f7 | 1183 | POPSTACK; |
a0d0e21e LW |
1184 | FREETMPS; |
1185 | LEAVE; | |
79072805 LW |
1186 | return 0; |
1187 | } | |
1188 | ||
1189 | int | |
864dbfa3 | 1190 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1191 | { |
1192 | return magic_methpack(sv,mg,"EXISTS"); | |
1193 | } | |
1194 | ||
1195 | int | |
864dbfa3 | 1196 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1197 | { |
11343788 | 1198 | dTHR; |
79072805 LW |
1199 | OP *o; |
1200 | I32 i; | |
1201 | GV* gv; | |
1202 | SV** svp; | |
2d8e6c8d | 1203 | STRLEN n_a; |
79072805 | 1204 | |
3280af22 | 1205 | gv = PL_DBline; |
79072805 | 1206 | i = SvTRUE(sv); |
188ea221 | 1207 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1208 | atoi(MgPV(mg,n_a)), FALSE); |
8990e307 | 1209 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1210 | o->op_private = i; |
0453d815 PM |
1211 | else if (ckWARN_d(WARN_INTERNAL)) |
1212 | Perl_warner(aTHX_ WARN_INTERNAL, "Can't break at that line\n"); | |
79072805 LW |
1213 | return 0; |
1214 | } | |
1215 | ||
1216 | int | |
864dbfa3 | 1217 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1218 | { |
0f15f207 | 1219 | dTHR; |
3280af22 | 1220 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1221 | return 0; |
1222 | } | |
1223 | ||
1224 | int | |
864dbfa3 | 1225 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1226 | { |
0f15f207 | 1227 | dTHR; |
3280af22 | 1228 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1229 | return 0; |
1230 | } | |
1231 | ||
1232 | int | |
864dbfa3 | 1233 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1234 | { |
1235 | SV* lsv = LvTARG(sv); | |
1236 | ||
1237 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1238 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1239 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1240 | dTHR; |
a0ed51b3 LW |
1241 | I32 i = mg->mg_len; |
1242 | if (IN_UTF8) | |
1243 | sv_pos_b2u(lsv, &i); | |
1244 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1245 | return 0; |
1246 | } | |
1247 | } | |
1248 | (void)SvOK_off(sv); | |
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | int | |
864dbfa3 | 1253 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1254 | { |
1255 | SV* lsv = LvTARG(sv); | |
1256 | SSize_t pos; | |
1257 | STRLEN len; | |
a0ed51b3 | 1258 | STRLEN ulen; |
c485e607 | 1259 | dTHR; |
a0d0e21e LW |
1260 | |
1261 | mg = 0; | |
1262 | ||
1263 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1264 | mg = mg_find(lsv, 'g'); | |
1265 | if (!mg) { | |
1266 | if (!SvOK(sv)) | |
1267 | return 0; | |
1268 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1269 | mg = mg_find(lsv, 'g'); | |
1270 | } | |
1271 | else if (!SvOK(sv)) { | |
565764a8 | 1272 | mg->mg_len = -1; |
a0d0e21e LW |
1273 | return 0; |
1274 | } | |
1275 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1276 | ||
c485e607 | 1277 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 LW |
1278 | |
1279 | if (IN_UTF8) { | |
1280 | ulen = sv_len_utf8(lsv); | |
1281 | if (ulen) | |
1282 | len = ulen; | |
1283 | else | |
1284 | ulen = 0; | |
1285 | } | |
1286 | ||
a0d0e21e LW |
1287 | if (pos < 0) { |
1288 | pos += len; | |
1289 | if (pos < 0) | |
1290 | pos = 0; | |
1291 | } | |
1292 | else if (pos > len) | |
1293 | pos = len; | |
a0ed51b3 LW |
1294 | |
1295 | if (ulen) { | |
1296 | I32 p = pos; | |
1297 | sv_pos_u2b(lsv, &p, 0); | |
1298 | pos = p; | |
1299 | } | |
1300 | ||
565764a8 | 1301 | mg->mg_len = pos; |
71be2cbc | 1302 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1303 | |
79072805 LW |
1304 | return 0; |
1305 | } | |
1306 | ||
1307 | int | |
864dbfa3 | 1308 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1309 | { |
8646b087 | 1310 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1311 | SvFAKE_off(sv); | |
946ec16e | 1312 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1313 | SvFAKE_on(sv); |
1314 | } | |
1315 | else | |
946ec16e | 1316 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1317 | return 0; |
1318 | } | |
1319 | ||
1320 | int | |
864dbfa3 | 1321 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1322 | { |
1323 | register char *s; | |
1324 | GV* gv; | |
2d8e6c8d | 1325 | STRLEN n_a; |
79072805 LW |
1326 | |
1327 | if (!SvOK(sv)) | |
1328 | return 0; | |
2d8e6c8d | 1329 | s = SvPV(sv, n_a); |
79072805 LW |
1330 | if (*s == '*' && s[1]) |
1331 | s++; | |
85e6fe83 | 1332 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1333 | if (sv == (SV*)gv) |
1334 | return 0; | |
1335 | if (GvGP(sv)) | |
88e89b8a | 1336 | gp_free((GV*)sv); |
79072805 | 1337 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1338 | return 0; |
1339 | } | |
1340 | ||
1341 | int | |
864dbfa3 | 1342 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1343 | { |
1344 | STRLEN len; | |
1345 | SV *lsv = LvTARG(sv); | |
1346 | char *tmps = SvPV(lsv,len); | |
1347 | I32 offs = LvTARGOFF(sv); | |
1348 | I32 rem = LvTARGLEN(sv); | |
1349 | ||
1350 | if (offs > len) | |
1351 | offs = len; | |
1352 | if (rem + offs > len) | |
1353 | rem = len - offs; | |
1354 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1355 | return 0; | |
1356 | } | |
1357 | ||
1358 | int | |
864dbfa3 | 1359 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1360 | { |
8990e307 LW |
1361 | STRLEN len; |
1362 | char *tmps = SvPV(sv,len); | |
1363 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1364 | return 0; |
1365 | } | |
1366 | ||
1367 | int | |
864dbfa3 | 1368 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1369 | { |
a863c7d1 | 1370 | dTHR; |
565764a8 DL |
1371 | TAINT_IF((mg->mg_len & 1) || |
1372 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1373 | return 0; |
1374 | } | |
1375 | ||
1376 | int | |
864dbfa3 | 1377 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1378 | { |
11343788 | 1379 | dTHR; |
3280af22 NIS |
1380 | if (PL_localizing) { |
1381 | if (PL_localizing == 1) | |
565764a8 | 1382 | mg->mg_len <<= 1; |
748a9306 | 1383 | else |
565764a8 | 1384 | mg->mg_len >>= 1; |
a0d0e21e | 1385 | } |
3280af22 | 1386 | else if (PL_tainted) |
565764a8 | 1387 | mg->mg_len |= 1; |
748a9306 | 1388 | else |
565764a8 | 1389 | mg->mg_len &= ~1; |
463ee0b2 LW |
1390 | return 0; |
1391 | } | |
1392 | ||
1393 | int | |
864dbfa3 | 1394 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1395 | { |
1396 | SV *lsv = LvTARG(sv); | |
1397 | unsigned char *s; | |
1398 | unsigned long retnum; | |
1399 | STRLEN lsvlen; | |
1400 | I32 len; | |
1401 | I32 offset; | |
1402 | I32 size; | |
1403 | ||
1404 | if (!lsv) { | |
1405 | SvOK_off(sv); | |
1406 | return 0; | |
1407 | } | |
1408 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1409 | offset = LvTARGOFF(sv); | |
1410 | size = LvTARGLEN(sv); | |
1411 | len = (offset + size + 7) / 8; | |
1412 | ||
1413 | /* Copied from pp_vec() */ | |
1414 | ||
1415 | if (len > lsvlen) { | |
1416 | if (size <= 8) | |
1417 | retnum = 0; | |
1418 | else { | |
1419 | offset >>= 3; | |
1420 | if (size == 16) { | |
1421 | if (offset >= lsvlen) | |
1422 | retnum = 0; | |
1423 | else | |
1424 | retnum = (unsigned long) s[offset] << 8; | |
1425 | } | |
1426 | else if (size == 32) { | |
1427 | if (offset >= lsvlen) | |
1428 | retnum = 0; | |
1429 | else if (offset + 1 >= lsvlen) | |
1430 | retnum = (unsigned long) s[offset] << 24; | |
1431 | else if (offset + 2 >= lsvlen) | |
1432 | retnum = ((unsigned long) s[offset] << 24) + | |
1433 | ((unsigned long) s[offset + 1] << 16); | |
1434 | else | |
1435 | retnum = ((unsigned long) s[offset] << 24) + | |
1436 | ((unsigned long) s[offset + 1] << 16) + | |
1437 | (s[offset + 2] << 8); | |
1438 | } | |
1439 | } | |
1440 | } | |
1441 | else if (size < 8) | |
1442 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1443 | else { | |
1444 | offset >>= 3; | |
1445 | if (size == 8) | |
1446 | retnum = s[offset]; | |
1447 | else if (size == 16) | |
1448 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1449 | else if (size == 32) | |
1450 | retnum = ((unsigned long) s[offset] << 24) + | |
1451 | ((unsigned long) s[offset + 1] << 16) + | |
1452 | (s[offset + 2] << 8) + s[offset+3]; | |
1453 | } | |
1454 | ||
1455 | sv_setuv(sv, (UV)retnum); | |
1456 | return 0; | |
1457 | } | |
1458 | ||
1459 | int | |
864dbfa3 | 1460 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1461 | { |
1462 | do_vecset(sv); /* XXX slurp this routine */ | |
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | int | |
864dbfa3 | 1467 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1468 | { |
71be2cbc | 1469 | SV *targ = Nullsv; |
5f05dabc | 1470 | if (LvTARGLEN(sv)) { |
68dc0745 | 1471 | if (mg->mg_obj) { |
74e13ce4 GS |
1472 | SV *ahv = LvTARG(sv); |
1473 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1474 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1475 | if (he) | |
1476 | targ = HeVAL(he); | |
1477 | } | |
1478 | else { | |
1479 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1480 | if (svp) | |
1481 | targ = *svp; | |
1482 | } | |
68dc0745 | 1483 | } |
1484 | else { | |
3c78fafa | 1485 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1486 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1487 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1488 | } | |
3280af22 | 1489 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1490 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1491 | /* somebody else defined it for us */ |
1492 | SvREFCNT_dec(LvTARG(sv)); | |
1493 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1494 | LvTARGLEN(sv) = 0; | |
1495 | SvREFCNT_dec(mg->mg_obj); | |
1496 | mg->mg_obj = Nullsv; | |
1497 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1498 | } | |
5f05dabc | 1499 | } |
71be2cbc | 1500 | else |
1501 | targ = LvTARG(sv); | |
3280af22 | 1502 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1503 | return 0; |
1504 | } | |
1505 | ||
1506 | int | |
864dbfa3 | 1507 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1508 | { |
1509 | if (LvTARGLEN(sv)) | |
68dc0745 | 1510 | vivify_defelem(sv); |
1511 | if (LvTARG(sv)) { | |
5f05dabc | 1512 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1513 | SvSETMAGIC(LvTARG(sv)); |
1514 | } | |
5f05dabc | 1515 | return 0; |
1516 | } | |
1517 | ||
71be2cbc | 1518 | void |
864dbfa3 | 1519 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1520 | { |
e858de61 | 1521 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1522 | MAGIC *mg; |
1523 | SV *value = Nullsv; | |
71be2cbc | 1524 | |
68dc0745 | 1525 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1526 | return; |
68dc0745 | 1527 | if (mg->mg_obj) { |
74e13ce4 | 1528 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1529 | STRLEN n_a; |
74e13ce4 | 1530 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1531 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1532 | if (he) |
1533 | value = HeVAL(he); | |
1534 | } | |
1535 | else { | |
af7f9c15 | 1536 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1537 | if (svp) |
1538 | value = *svp; | |
1539 | } | |
3280af22 | 1540 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1541 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1542 | } |
68dc0745 | 1543 | else { |
1544 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1545 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1546 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1547 | else { | |
1548 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1549 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1550 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1551 | } |
1552 | } | |
3e3baf6d | 1553 | (void)SvREFCNT_inc(value); |
68dc0745 | 1554 | SvREFCNT_dec(LvTARG(sv)); |
1555 | LvTARG(sv) = value; | |
71be2cbc | 1556 | LvTARGLEN(sv) = 0; |
68dc0745 | 1557 | SvREFCNT_dec(mg->mg_obj); |
1558 | mg->mg_obj = Nullsv; | |
1559 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1560 | } |
1561 | ||
1562 | int | |
864dbfa3 | 1563 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1564 | { |
1565 | AV *av = (AV*)mg->mg_obj; | |
1566 | SV **svp = AvARRAY(av); | |
1567 | I32 i = AvFILLp(av); | |
1568 | while (i >= 0) { | |
1569 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1570 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1571 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1572 | /* XXX Should we check that it hasn't changed? */ |
1573 | SvRV(svp[i]) = 0; | |
1574 | SvOK_off(svp[i]); | |
1575 | SvWEAKREF_off(svp[i]); | |
1576 | svp[i] = &PL_sv_undef; | |
1577 | } | |
1578 | i--; | |
1579 | } | |
1580 | return 0; | |
1581 | } | |
1582 | ||
1583 | int | |
864dbfa3 | 1584 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1585 | { |
565764a8 | 1586 | mg->mg_len = -1; |
c6496cc7 | 1587 | SvSCREAM_off(sv); |
93a17b20 LW |
1588 | return 0; |
1589 | } | |
1590 | ||
1591 | int | |
864dbfa3 | 1592 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1593 | { |
463ee0b2 | 1594 | sv_unmagic(sv, 'B'); |
79072805 LW |
1595 | SvVALID_off(sv); |
1596 | return 0; | |
1597 | } | |
1598 | ||
1599 | int | |
864dbfa3 | 1600 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1601 | { |
1602 | sv_unmagic(sv, 'f'); | |
1603 | SvCOMPILED_off(sv); | |
1604 | return 0; | |
1605 | } | |
1606 | ||
1607 | int | |
864dbfa3 | 1608 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1609 | { |
1610 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1611 | ||
1612 | if (uf && uf->uf_set) | |
1613 | (*uf->uf_set)(uf->uf_index, sv); | |
1614 | return 0; | |
1615 | } | |
1616 | ||
c277df42 | 1617 | int |
864dbfa3 | 1618 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1619 | { |
1620 | regexp *re = (regexp *)mg->mg_obj; | |
1621 | ReREFCNT_dec(re); | |
1622 | return 0; | |
1623 | } | |
1624 | ||
7a4c00b4 | 1625 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1626 | int |
864dbfa3 | 1627 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1628 | { |
1629 | /* | |
838b5b74 | 1630 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1631 | * and vanished with a faint plop. |
1632 | */ | |
7a4c00b4 | 1633 | if (mg->mg_ptr) { |
1634 | Safefree(mg->mg_ptr); | |
1635 | mg->mg_ptr = NULL; | |
565764a8 | 1636 | mg->mg_len = -1; |
7a4c00b4 | 1637 | } |
bbce6d69 | 1638 | return 0; |
1639 | } | |
7a4c00b4 | 1640 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1641 | |
1642 | int | |
864dbfa3 | 1643 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1644 | { |
11343788 | 1645 | dTHR; |
79072805 LW |
1646 | register char *s; |
1647 | I32 i; | |
8990e307 | 1648 | STRLEN len; |
79072805 | 1649 | switch (*mg->mg_ptr) { |
748a9306 | 1650 | case '\001': /* ^A */ |
3280af22 | 1651 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1652 | break; |
599cee73 PM |
1653 | case '\002': /* ^B */ |
1654 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
0453d815 | 1655 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) { |
e24b16f9 | 1656 | PL_compiling.cop_warnings = WARN_ALL; |
0453d815 PM |
1657 | PL_dowarn |= G_WARN_ONCE ; |
1658 | } | |
599cee73 | 1659 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 | 1660 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 | 1661 | else { |
0453d815 | 1662 | if (specialWARN(PL_compiling.cop_warnings)) |
e24b16f9 | 1663 | PL_compiling.cop_warnings = newSVsv(sv) ; |
0453d815 PM |
1664 | else |
1665 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1666 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1667 | PL_dowarn |= G_WARN_ONCE ; | |
599cee73 PM |
1668 | } |
1669 | } | |
1670 | break; | |
49460fe6 NIS |
1671 | |
1672 | case '\003': /* ^C */ | |
1673 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1674 | break; | |
1675 | ||
79072805 | 1676 | case '\004': /* ^D */ |
3280af22 | 1677 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1678 | DEBUG_x(dump_all()); |
1679 | break; | |
28f23441 | 1680 | case '\005': /* ^E */ |
1681 | #ifdef VMS | |
1682 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1683 | #else | |
048c1ddf | 1684 | # ifdef WIN32 |
22fae026 | 1685 | SetLastError( SvIV(sv) ); |
048c1ddf IZ |
1686 | # else |
1687 | # ifndef OS2 | |
f86702cc | 1688 | /* will anyone ever use this? */ |
1689 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
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); |
79072805 LW |
1718 | break; |
1719 | case '\024': /* ^T */ | |
88e89b8a | 1720 | #ifdef BIG_TIME |
6b88bc9c | 1721 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1722 | #else |
3280af22 | 1723 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1724 | #endif |
79072805 LW |
1725 | break; |
1726 | case '\027': /* ^W */ | |
599cee73 PM |
1727 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1728 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
0453d815 PM |
1729 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
1730 | | (i ? G_WARN_ON : G_WARN_OFF) ; | |
599cee73 | 1731 | } |
79072805 LW |
1732 | break; |
1733 | case '.': | |
3280af22 NIS |
1734 | if (PL_localizing) { |
1735 | if (PL_localizing == 1) | |
1736 | save_sptr((SV**)&PL_last_in_gv); | |
748a9306 | 1737 | } |
3280af22 NIS |
1738 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1739 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1740 | break; |
1741 | case '^': | |
3280af22 | 1742 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1743 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1744 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1745 | break; |
1746 | case '~': | |
3280af22 | 1747 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1748 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1749 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1750 | break; |
1751 | case '=': | |
3280af22 | 1752 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1753 | break; |
1754 | case '-': | |
3280af22 NIS |
1755 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1756 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1757 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1758 | break; |
1759 | case '%': | |
3280af22 | 1760 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1761 | break; |
1762 | case '|': | |
4b65379b | 1763 | { |
3280af22 | 1764 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1765 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1766 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1767 | else { | |
1768 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1769 | PerlIO *ofp = IoOFP(io); | |
1770 | if (ofp) | |
1771 | (void)PerlIO_flush(ofp); | |
1772 | IoFLAGS(io) |= IOf_FLUSH; | |
1773 | } | |
1774 | } | |
79072805 LW |
1775 | } |
1776 | break; | |
1777 | case '*': | |
463ee0b2 | 1778 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1779 | PL_multiline = (i != 0); |
79072805 LW |
1780 | break; |
1781 | case '/': | |
3280af22 NIS |
1782 | SvREFCNT_dec(PL_nrs); |
1783 | PL_nrs = newSVsv(sv); | |
1784 | SvREFCNT_dec(PL_rs); | |
1785 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1786 | break; |
1787 | case '\\': | |
3280af22 NIS |
1788 | if (PL_ors) |
1789 | Safefree(PL_ors); | |
e3c19b7b | 1790 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 | 1791 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b | 1792 | else { |
3280af22 NIS |
1793 | PL_ors = Nullch; |
1794 | PL_orslen = 0; | |
e3c19b7b | 1795 | } |
79072805 LW |
1796 | break; |
1797 | case ',': | |
3280af22 NIS |
1798 | if (PL_ofs) |
1799 | Safefree(PL_ofs); | |
1800 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1801 | break; |
1802 | case '#': | |
3280af22 NIS |
1803 | if (PL_ofmt) |
1804 | Safefree(PL_ofmt); | |
2d8e6c8d | 1805 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1806 | break; |
1807 | case '[': | |
3280af22 | 1808 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1809 | break; |
1810 | case '?': | |
ff0cee69 | 1811 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1812 | if (PL_localizing == 2) { |
1813 | PL_statusvalue = LvTARGOFF(sv); | |
1814 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1815 | } |
1816 | else | |
1817 | #endif | |
1818 | #ifdef VMSISH_STATUS | |
1819 | if (VMSISH_STATUS) | |
1820 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1821 | else | |
1822 | #endif | |
1823 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1824 | break; |
1825 | case '!': | |
78987ded | 1826 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1827 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1828 | break; |
1829 | case '<': | |
3280af22 NIS |
1830 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1831 | if (PL_delaymagic) { | |
1832 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1833 | break; /* don't do magic till later */ |
1834 | } | |
1835 | #ifdef HAS_SETRUID | |
b28d0864 | 1836 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1837 | #else |
1838 | #ifdef HAS_SETREUID | |
3280af22 | 1839 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1840 | #else |
85e6fe83 | 1841 | #ifdef HAS_SETRESUID |
b28d0864 | 1842 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1843 | #else |
b28d0864 NIS |
1844 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1845 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1846 | else { |
b28d0864 | 1847 | PL_uid = (I32)PerlProc_getuid(); |
cea2e8a9 | 1848 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1849 | } |
79072805 LW |
1850 | #endif |
1851 | #endif | |
85e6fe83 | 1852 | #endif |
3280af22 NIS |
1853 | PL_uid = (I32)PerlProc_getuid(); |
1854 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1855 | break; |
1856 | case '>': | |
3280af22 NIS |
1857 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1858 | if (PL_delaymagic) { | |
1859 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1860 | break; /* don't do magic till later */ |
1861 | } | |
1862 | #ifdef HAS_SETEUID | |
3280af22 | 1863 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1864 | #else |
1865 | #ifdef HAS_SETREUID | |
b28d0864 | 1866 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1867 | #else |
1868 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1869 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1870 | #else |
b28d0864 NIS |
1871 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1872 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1873 | else { |
b28d0864 | 1874 | PL_euid = (I32)PerlProc_geteuid(); |
cea2e8a9 | 1875 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1876 | } |
79072805 LW |
1877 | #endif |
1878 | #endif | |
85e6fe83 | 1879 | #endif |
3280af22 NIS |
1880 | PL_euid = (I32)PerlProc_geteuid(); |
1881 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1882 | break; |
1883 | case '(': | |
3280af22 NIS |
1884 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1885 | if (PL_delaymagic) { | |
1886 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1887 | break; /* don't do magic till later */ |
1888 | } | |
1889 | #ifdef HAS_SETRGID | |
b28d0864 | 1890 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1891 | #else |
1892 | #ifdef HAS_SETREGID | |
3280af22 | 1893 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1894 | #else |
1895 | #ifdef HAS_SETRESGID | |
b28d0864 | 1896 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1897 | #else |
b28d0864 NIS |
1898 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1899 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1900 | else { |
b28d0864 | 1901 | PL_gid = (I32)PerlProc_getgid(); |
cea2e8a9 | 1902 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1903 | } |
79072805 LW |
1904 | #endif |
1905 | #endif | |
85e6fe83 | 1906 | #endif |
3280af22 NIS |
1907 | PL_gid = (I32)PerlProc_getgid(); |
1908 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1909 | break; |
1910 | case ')': | |
5cd24f17 | 1911 | #ifdef HAS_SETGROUPS |
1912 | { | |
2d8e6c8d | 1913 | char *p = SvPV(sv, len); |
5cd24f17 | 1914 | Groups_t gary[NGROUPS]; |
1915 | ||
5cd24f17 | 1916 | while (isSPACE(*p)) |
1917 | ++p; | |
097ee67d | 1918 | PL_egid = I_V(atol(p)); |
5cd24f17 | 1919 | for (i = 0; i < NGROUPS; ++i) { |
1920 | while (*p && !isSPACE(*p)) | |
1921 | ++p; | |
1922 | while (isSPACE(*p)) | |
1923 | ++p; | |
1924 | if (!*p) | |
1925 | break; | |
097ee67d | 1926 | gary[i] = I_V(atol(p)); |
5cd24f17 | 1927 | } |
8cc95fdb | 1928 | if (i) |
1929 | (void)setgroups(i, gary); | |
5cd24f17 | 1930 | } |
1931 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1932 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1933 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1934 | if (PL_delaymagic) { |
1935 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1936 | break; /* don't do magic till later */ |
1937 | } | |
1938 | #ifdef HAS_SETEGID | |
3280af22 | 1939 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1940 | #else |
1941 | #ifdef HAS_SETREGID | |
b28d0864 | 1942 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1943 | #else |
1944 | #ifdef HAS_SETRESGID | |
b28d0864 | 1945 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1946 | #else |
b28d0864 NIS |
1947 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1948 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1949 | else { |
b28d0864 | 1950 | PL_egid = (I32)PerlProc_getegid(); |
cea2e8a9 | 1951 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 1952 | } |
79072805 LW |
1953 | #endif |
1954 | #endif | |
85e6fe83 | 1955 | #endif |
3280af22 NIS |
1956 | PL_egid = (I32)PerlProc_getegid(); |
1957 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1958 | break; |
1959 | case ':': | |
2d8e6c8d | 1960 | PL_chopset = SvPV_force(sv,len); |
79072805 LW |
1961 | break; |
1962 | case '0': | |
3280af22 NIS |
1963 | if (!PL_origalen) { |
1964 | s = PL_origargv[0]; | |
79072805 LW |
1965 | s += strlen(s); |
1966 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1967 | for (i = 1; i < PL_origargc; i++) { |
1968 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1969 | #ifdef OS2 |
6b88bc9c | 1970 | || PL_origargv[i] == s + 2 |
fb73857a | 1971 | #endif |
1972 | ) | |
379c4362 GS |
1973 | { |
1974 | ++s; | |
1975 | s += strlen(s); /* this one is ok too */ | |
1976 | } | |
fb73857a | 1977 | else |
1978 | break; | |
79072805 | 1979 | } |
bbce6d69 | 1980 | /* can grab env area too? */ |
3280af22 | 1981 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 1982 | #ifdef OS2 |
6b88bc9c | 1983 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 1984 | #endif |
1985 | )) { | |
66b1d557 | 1986 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 1987 | /* force copy of environment */ |
3280af22 | 1988 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
1989 | if (PL_origenviron[i] == s + 1) { |
1990 | ++s; | |
1991 | s += strlen(s); | |
1992 | } | |
fb73857a | 1993 | else |
1994 | break; | |
79072805 | 1995 | } |
3280af22 | 1996 | PL_origalen = s - PL_origargv[0]; |
79072805 | 1997 | } |
a0d0e21e | 1998 | s = SvPV_force(sv,len); |
8990e307 | 1999 | i = len; |
3280af22 NIS |
2000 | if (i >= PL_origalen) { |
2001 | i = PL_origalen; | |
fb73857a | 2002 | /* don't allow system to limit $0 seen by script */ |
2003 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2004 | Copy(s, PL_origargv[0], i, char); |
2005 | s = PL_origargv[0]+i; | |
fb73857a | 2006 | *s = '\0'; |
79072805 LW |
2007 | } |
2008 | else { | |
3280af22 NIS |
2009 | Copy(s, PL_origargv[0], i, char); |
2010 | s = PL_origargv[0]+i; | |
79072805 | 2011 | *s++ = '\0'; |
3280af22 | 2012 | while (++i < PL_origalen) |
8990e307 | 2013 | *s++ = ' '; |
3280af22 NIS |
2014 | s = PL_origargv[0]+i; |
2015 | for (i = 1; i < PL_origargc; i++) | |
2016 | PL_origargv[i] = Nullch; | |
79072805 LW |
2017 | } |
2018 | break; | |
a863c7d1 MB |
2019 | #ifdef USE_THREADS |
2020 | case '@': | |
38a03e6e | 2021 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2022 | break; |
2023 | #endif /* USE_THREADS */ | |
79072805 LW |
2024 | } |
2025 | return 0; | |
2026 | } | |
2027 | ||
f93b4edd MB |
2028 | #ifdef USE_THREADS |
2029 | int | |
864dbfa3 | 2030 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd MB |
2031 | { |
2032 | dTHR; | |
8b73bbec | 2033 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 | 2034 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd | 2035 | if (MgOWNER(mg)) |
cea2e8a9 | 2036 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2037 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2038 | COND_DESTROY(MgCONDP(mg)); | |
2039 | return 0; | |
2040 | } | |
2041 | #endif /* USE_THREADS */ | |
2042 | ||
79072805 | 2043 | I32 |
864dbfa3 | 2044 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2045 | { |
2046 | register char **sigv; | |
2047 | ||
22c35a8c | 2048 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2049 | if (strEQ(sig,*sigv)) |
22c35a8c | 2050 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2051 | #ifdef SIGCLD |
2052 | if (strEQ(sig,"CHLD")) | |
2053 | return SIGCLD; | |
2054 | #endif | |
2055 | #ifdef SIGCHLD | |
2056 | if (strEQ(sig,"CLD")) | |
2057 | return SIGCHLD; | |
2058 | #endif | |
2059 | return 0; | |
2060 | } | |
2061 | ||
84902520 TB |
2062 | static SV* sig_sv; |
2063 | ||
76e3520e | 2064 | STATIC void |
cea2e8a9 | 2065 | S_unwind_handler_stack(pTHX_ void *p) |
84902520 | 2066 | { |
ff26ac79 | 2067 | dTHR; |
84902520 TB |
2068 | U32 flags = *(U32*)p; |
2069 | ||
2070 | if (flags & 1) | |
3280af22 | 2071 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 TB |
2072 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2073 | if (flags & 64) | |
2074 | SvREFCNT_dec(sig_sv); | |
2075 | } | |
2076 | ||
ecfc5424 | 2077 | Signal_t |
cea2e8a9 | 2078 | Perl_sighandler(int sig) |
79072805 | 2079 | { |
cea2e8a9 | 2080 | dTHX; |
79072805 | 2081 | dSP; |
00d579c5 | 2082 | GV *gv = Nullgv; |
a0d0e21e | 2083 | HV *st; |
3280af22 | 2084 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2085 | CV *cv = Nullcv; |
533c011a | 2086 | OP *myop = PL_op; |
84902520 | 2087 | U32 flags = 0; |
3280af22 NIS |
2088 | I32 o_save_i = PL_savestack_ix, type; |
2089 | XPV *tXpv = PL_Xpv; | |
84902520 | 2090 | |
3280af22 | 2091 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2092 | flags |= 1; |
3280af22 | 2093 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2094 | flags |= 4; |
3280af22 | 2095 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2096 | flags |= 8; |
3280af22 | 2097 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2098 | flags |= 16; |
2099 | ||
22c35a8c | 2100 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2101 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2102 | PL_sig_name[sig]); |
ff0cee69 | 2103 | |
84902520 TB |
2104 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2105 | infinity, so we fix 4 (in fact 5): */ | |
2106 | if (flags & 1) { | |
3280af22 NIS |
2107 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2108 | o_save_i = PL_savestack_ix; | |
cea2e8a9 | 2109 | SAVEDESTRUCTOR(S_unwind_handler_stack, (void*)&flags); |
84902520 TB |
2110 | } |
2111 | if (flags & 4) | |
3280af22 | 2112 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2113 | if (flags & 8) { |
3280af22 NIS |
2114 | PL_retstack_ix++; |
2115 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2116 | } |
2117 | if (flags & 16) | |
3280af22 | 2118 | PL_scopestack_ix += 1; |
84902520 | 2119 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2120 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2121 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2122 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2123 | |
a0d0e21e | 2124 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2125 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2126 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2127 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2128 | : ((cv && CvGV(cv)) |
2129 | ? GvENAME(CvGV(cv)) | |
2130 | : "__ANON__"))); | |
2131 | goto cleanup; | |
79072805 LW |
2132 | } |
2133 | ||
22c35a8c GS |
2134 | if(PL_psig_name[sig]) { |
2135 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2136 | flags |= 64; |
2137 | sig_sv = sv; | |
2138 | } else { | |
ff0cee69 | 2139 | sv = sv_newmortal(); |
22c35a8c | 2140 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2141 | } |
e336de0d | 2142 | |
e788e7d3 | 2143 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2144 | PUSHMARK(SP); |
79072805 | 2145 | PUSHs(sv); |
79072805 | 2146 | PUTBACK; |
a0d0e21e | 2147 | |
864dbfa3 | 2148 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2149 | |
d3acc0f7 | 2150 | POPSTACK; |
00d579c5 | 2151 | cleanup: |
84902520 | 2152 | if (flags & 1) |
3280af22 | 2153 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2154 | if (flags & 4) |
3280af22 | 2155 | PL_markstack_ptr--; |
84902520 | 2156 | if (flags & 8) |
3280af22 | 2157 | PL_retstack_ix--; |
84902520 | 2158 | if (flags & 16) |
3280af22 | 2159 | PL_scopestack_ix -= 1; |
84902520 TB |
2160 | if (flags & 64) |
2161 | SvREFCNT_dec(sv); | |
533c011a | 2162 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2163 | |
3280af22 NIS |
2164 | PL_Sv = tSv; /* Restore global temporaries. */ |
2165 | PL_Xpv = tXpv; | |
79072805 LW |
2166 | return; |
2167 | } | |
4e35701f NIS |
2168 | |
2169 |