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 | |
864dbfa3 | 48 | save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 49 | { |
46124e9e | 50 | dTHR; |
455ece5e | 51 | MGS* mgs; |
c07a80fd | 52 | assert(SvMAGICAL(sv)); |
53 | ||
455ece5e AD |
54 | SAVEDESTRUCTOR(restore_magic, (void*)mgs_ix); |
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 |
864dbfa3 | 67 | 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 GS |
140 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
141 | (VTBL->svt_get)(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 GS |
178 | if (vtbl && (vtbl->svt_set != NULL)) |
179 | (VTBL->svt_set)(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 */ |
76e3520e | 201 | len = (VTBL->svt_len)(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 */ |
565764a8 | 225 | len = (VTBL->svt_len)(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: | |
238 | croak("Size magic not implemented"); | |
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 GS |
257 | if (vtbl && (vtbl->svt_clear != NULL)) |
258 | (VTBL->svt_clear)(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 GS |
300 | if (vtbl && (vtbl->svt_free != NULL)) |
301 | (VTBL->svt_free)(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 | ||
599cee73 PM |
434 | #if 0 |
435 | static char * | |
ba106d47 | 436 | printW(SV *sv) |
599cee73 PM |
437 | { |
438 | #if 1 | |
439 | return "" ; | |
440 | ||
441 | #else | |
442 | int i ; | |
443 | static char buffer[50] ; | |
444 | char buf1[20] ; | |
445 | char * p ; | |
446 | ||
447 | ||
448 | sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ; | |
449 | p = SvPVX(sv) ; | |
450 | for (i = 0; i < SvCUR(sv) ; ++ i) { | |
451 | sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ; | |
452 | strcat(buffer, buf1) ; | |
453 | } | |
454 | ||
455 | return buffer ; | |
456 | ||
457 | #endif | |
458 | } | |
459 | #endif | |
460 | ||
79072805 | 461 | int |
864dbfa3 | 462 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 463 | { |
a863c7d1 | 464 | dTHR; |
79072805 LW |
465 | register I32 paren; |
466 | register char *s; | |
467 | register I32 i; | |
d9f97599 | 468 | register REGEXP *rx; |
748a9306 | 469 | char *t; |
79072805 LW |
470 | |
471 | switch (*mg->mg_ptr) { | |
748a9306 | 472 | case '\001': /* ^A */ |
3280af22 | 473 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 474 | break; |
599cee73 PM |
475 | case '\002': /* ^B */ |
476 | /* printf("magic_get $^B: ") ; */ | |
e24b16f9 | 477 | if (PL_curcop->cop_warnings == WARN_NONE) |
599cee73 PM |
478 | /* printf("WARN_NONE\n"), */ |
479 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
e24b16f9 | 480 | else if (PL_curcop->cop_warnings == WARN_ALL) |
599cee73 PM |
481 | /* printf("WARN_ALL\n"), */ |
482 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
483 | else | |
e24b16f9 GS |
484 | /* printf("some %s\n", printW(PL_curcop->cop_warnings)), */ |
485 | sv_setsv(sv, PL_curcop->cop_warnings); | |
599cee73 | 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)); |
79072805 | 493 | break; |
28f23441 | 494 | case '\005': /* ^E */ |
495 | #ifdef VMS | |
496 | { | |
497 | # include <descrip.h> | |
498 | # include <starlet.h> | |
499 | char msg[255]; | |
500 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 501 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 502 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
503 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
504 | else | |
505 | sv_setpv(sv,""); | |
506 | } | |
507 | #else | |
88e89b8a | 508 | #ifdef OS2 |
fb73857a | 509 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
510 | sv_setnv(sv, (double)errno); | |
511 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
512 | } else { | |
017f25f1 IZ |
513 | if (errno != errno_isOS2) { |
514 | int tmp = _syserrno(); | |
515 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
516 | Perl_rc = tmp; | |
517 | } | |
fb73857a | 518 | sv_setnv(sv, (double)Perl_rc); |
519 | sv_setpv(sv, os2error(Perl_rc)); | |
520 | } | |
88e89b8a | 521 | #else |
22fae026 TM |
522 | #ifdef WIN32 |
523 | { | |
524 | DWORD dwErr = GetLastError(); | |
525 | sv_setnv(sv, (double)dwErr); | |
526 | if (dwErr) | |
76e3520e GS |
527 | { |
528 | #ifdef PERL_OBJECT | |
529 | char *sMsg; | |
530 | DWORD dwLen; | |
531 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); | |
532 | sv_setpvn(sv, sMsg, dwLen); | |
533 | PerlProc_FreeBuf(sMsg); | |
534 | #else | |
22fae026 | 535 | win32_str_os_error(sv, dwErr); |
76e3520e GS |
536 | #endif |
537 | } | |
22fae026 TM |
538 | else |
539 | sv_setpv(sv, ""); | |
540 | SetLastError(dwErr); | |
541 | } | |
542 | #else | |
946ec16e | 543 | sv_setnv(sv, (double)errno); |
28f23441 | 544 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
545 | #endif | |
88e89b8a | 546 | #endif |
22fae026 | 547 | #endif |
946ec16e | 548 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 549 | break; |
79072805 | 550 | case '\006': /* ^F */ |
3280af22 | 551 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 552 | break; |
a0d0e21e | 553 | case '\010': /* ^H */ |
3280af22 | 554 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 555 | break; |
9d116dd7 | 556 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
557 | if (PL_inplace) |
558 | sv_setpv(sv, PL_inplace); | |
79072805 | 559 | else |
3280af22 | 560 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 561 | break; |
28f23441 | 562 | case '\017': /* ^O */ |
3280af22 | 563 | sv_setpv(sv, PL_osname); |
28f23441 | 564 | break; |
79072805 | 565 | case '\020': /* ^P */ |
3280af22 | 566 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 567 | break; |
fb73857a | 568 | case '\023': /* ^S */ |
d58bf5aa MB |
569 | { |
570 | dTHR; | |
3280af22 | 571 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 572 | SvOK_off(sv); |
3280af22 | 573 | else if (PL_in_eval) |
d58bf5aa MB |
574 | sv_setiv(sv, 1); |
575 | else | |
576 | sv_setiv(sv, 0); | |
577 | } | |
fb73857a | 578 | break; |
79072805 | 579 | case '\024': /* ^T */ |
88e89b8a | 580 | #ifdef BIG_TIME |
6b88bc9c | 581 | sv_setnv(sv, PL_basetime); |
88e89b8a | 582 | #else |
3280af22 | 583 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 584 | #endif |
79072805 LW |
585 | break; |
586 | case '\027': /* ^W */ | |
599cee73 | 587 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 LW |
588 | break; |
589 | case '1': case '2': case '3': case '4': | |
590 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 591 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
592 | I32 s1, t1; |
593 | ||
a863c7d1 MB |
594 | /* |
595 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
596 | * XXX Does the new way break anything? | |
597 | */ | |
598 | paren = atoi(mg->mg_ptr); | |
79072805 | 599 | getparen: |
d9f97599 | 600 | if (paren <= rx->nparens && |
cf93c79d IZ |
601 | (s1 = rx->startp[paren]) != -1 && |
602 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 603 | { |
cf93c79d IZ |
604 | i = t1 - s1; |
605 | s = rx->subbeg + s1; | |
13f57bf8 | 606 | getrx: |
748a9306 | 607 | if (i >= 0) { |
13f57bf8 | 608 | bool was_tainted; |
3280af22 NIS |
609 | if (PL_tainting) { |
610 | was_tainted = PL_tainted; | |
611 | PL_tainted = FALSE; | |
13f57bf8 | 612 | } |
cf93c79d | 613 | sv_setpvn(sv, s, i); |
3280af22 NIS |
614 | if (PL_tainting) |
615 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
616 | break; |
617 | } | |
79072805 | 618 | } |
79072805 | 619 | } |
3280af22 | 620 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
621 | break; |
622 | case '+': | |
3280af22 | 623 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 624 | paren = rx->lastparen; |
a0d0e21e LW |
625 | if (paren) |
626 | goto getparen; | |
79072805 | 627 | } |
3280af22 | 628 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
629 | break; |
630 | case '`': | |
3280af22 | 631 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
632 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
633 | i = rx->startp[0]; | |
13f57bf8 | 634 | goto getrx; |
79072805 | 635 | } |
79072805 | 636 | } |
3280af22 | 637 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
638 | break; |
639 | case '\'': | |
3280af22 | 640 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
641 | if (rx->subbeg && rx->endp[0] != -1) { |
642 | s = rx->subbeg + rx->endp[0]; | |
643 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 644 | goto getrx; |
79072805 | 645 | } |
79072805 | 646 | } |
3280af22 | 647 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
648 | break; |
649 | case '.': | |
650 | #ifndef lint | |
3280af22 NIS |
651 | if (GvIO(PL_last_in_gv)) { |
652 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
653 | } |
654 | #endif | |
655 | break; | |
656 | case '?': | |
809a5acc | 657 | { |
809a5acc | 658 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 659 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
660 | LvTARGOFF(sv) = PL_statusvalue; |
661 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 662 | #endif |
809a5acc | 663 | } |
79072805 LW |
664 | break; |
665 | case '^': | |
3280af22 | 666 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
667 | if (s) |
668 | sv_setpv(sv,s); | |
669 | else { | |
3280af22 | 670 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
671 | sv_catpv(sv,"_TOP"); |
672 | } | |
673 | break; | |
674 | case '~': | |
3280af22 | 675 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 676 | if (!s) |
3280af22 | 677 | s = GvENAME(PL_defoutgv); |
79072805 LW |
678 | sv_setpv(sv,s); |
679 | break; | |
680 | #ifndef lint | |
681 | case '=': | |
3280af22 | 682 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
683 | break; |
684 | case '-': | |
3280af22 | 685 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
686 | break; |
687 | case '%': | |
3280af22 | 688 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
689 | break; |
690 | #endif | |
691 | case ':': | |
692 | break; | |
693 | case '/': | |
694 | break; | |
695 | case '[': | |
3280af22 | 696 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
697 | break; |
698 | case '|': | |
3280af22 | 699 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
700 | break; |
701 | case ',': | |
3280af22 | 702 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
703 | break; |
704 | case '\\': | |
3280af22 | 705 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
706 | break; |
707 | case '#': | |
3280af22 | 708 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
709 | break; |
710 | case '!': | |
a5f75d66 | 711 | #ifdef VMS |
946ec16e | 712 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 713 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 714 | #else |
88e89b8a | 715 | { |
716 | int saveerrno = errno; | |
946ec16e | 717 | sv_setnv(sv, (double)errno); |
88e89b8a | 718 | #ifdef OS2 |
719 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
720 | else | |
a5f75d66 | 721 | #endif |
2304df62 | 722 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 723 | errno = saveerrno; |
724 | } | |
725 | #endif | |
946ec16e | 726 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
727 | break; |
728 | case '<': | |
3280af22 | 729 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
730 | break; |
731 | case '>': | |
3280af22 | 732 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
733 | break; |
734 | case '(': | |
3280af22 NIS |
735 | sv_setiv(sv, (IV)PL_gid); |
736 | sv_setpvf(sv, "%Vd", (IV)PL_gid); | |
79072805 LW |
737 | goto add_groups; |
738 | case ')': | |
3280af22 NIS |
739 | sv_setiv(sv, (IV)PL_egid); |
740 | sv_setpvf(sv, "%Vd", (IV)PL_egid); | |
79072805 | 741 | add_groups: |
79072805 | 742 | #ifdef HAS_GETGROUPS |
79072805 | 743 | { |
a0d0e21e | 744 | Groups_t gary[NGROUPS]; |
79072805 | 745 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 746 | while (--i >= 0) |
fc36a67e | 747 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
748 | } |
749 | #endif | |
29355cf7 | 750 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
751 | break; |
752 | case '*': | |
753 | break; | |
754 | case '0': | |
755 | break; | |
a863c7d1 MB |
756 | #ifdef USE_THREADS |
757 | case '@': | |
38a03e6e | 758 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
759 | break; |
760 | #endif /* USE_THREADS */ | |
79072805 | 761 | } |
a0d0e21e | 762 | return 0; |
79072805 LW |
763 | } |
764 | ||
765 | int | |
864dbfa3 | 766 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
767 | { |
768 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
769 | ||
770 | if (uf && uf->uf_val) | |
771 | (*uf->uf_val)(uf->uf_index, sv); | |
772 | return 0; | |
773 | } | |
774 | ||
775 | int | |
864dbfa3 | 776 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
777 | { |
778 | register char *s; | |
88e89b8a | 779 | char *ptr; |
5aabfad6 | 780 | STRLEN len, klen; |
a0d0e21e | 781 | I32 i; |
1e422769 | 782 | |
a0d0e21e | 783 | s = SvPV(sv,len); |
5aabfad6 | 784 | ptr = MgPV(mg,klen); |
88e89b8a | 785 | my_setenv(ptr, s); |
1e422769 | 786 | |
a0d0e21e LW |
787 | #ifdef DYNAMIC_ENV_FETCH |
788 | /* We just undefd an environment var. Is a replacement */ | |
789 | /* waiting in the wings? */ | |
790 | if (!len) { | |
5aabfad6 | 791 | SV **valp; |
6b88bc9c | 792 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 793 | s = SvPV(*valp, len); |
a0d0e21e LW |
794 | } |
795 | #endif | |
1e422769 | 796 | |
39e571d4 | 797 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
798 | /* And you'll never guess what the dog had */ |
799 | /* in its mouth... */ | |
3280af22 | 800 | if (PL_tainting) { |
1e422769 | 801 | MgTAINTEDDIR_off(mg); |
802 | #ifdef VMS | |
5aabfad6 | 803 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 804 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
805 | struct stat sbuf; | |
806 | int i = 0, j = 0; | |
807 | ||
808 | do { /* DCL$PATH may be a search list */ | |
809 | while (1) { /* as may dev portion of any element */ | |
810 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
811 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
812 | cando_by_name(S_IWUSR,0,elt) ) { | |
813 | MgTAINTEDDIR_on(mg); | |
814 | return 0; | |
815 | } | |
816 | } | |
817 | if ((cp = strchr(elt, ':')) != Nullch) | |
818 | *cp = '\0'; | |
819 | if (my_trnlnm(elt, eltbuf, j++)) | |
820 | elt = eltbuf; | |
821 | else | |
822 | break; | |
823 | } | |
824 | j = 0; | |
825 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
826 | } | |
827 | #endif /* VMS */ | |
5aabfad6 | 828 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 829 | char *strend = s + len; |
463ee0b2 LW |
830 | |
831 | while (s < strend) { | |
96827780 | 832 | char tmpbuf[256]; |
1e422769 | 833 | struct stat st; |
96827780 | 834 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 835 | s, strend, ':', &i); |
463ee0b2 | 836 | s++; |
96827780 MB |
837 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
838 | || *tmpbuf != '/' | |
c6ed36e1 | 839 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 840 | MgTAINTEDDIR_on(mg); |
1e422769 | 841 | return 0; |
842 | } | |
463ee0b2 | 843 | } |
79072805 LW |
844 | } |
845 | } | |
39e571d4 | 846 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 847 | |
79072805 LW |
848 | return 0; |
849 | } | |
850 | ||
851 | int | |
864dbfa3 | 852 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 853 | { |
2d8e6c8d GS |
854 | STRLEN n_a; |
855 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
856 | return 0; |
857 | } | |
858 | ||
88e89b8a | 859 | int |
864dbfa3 | 860 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 861 | { |
862 | #if defined(VMS) | |
863 | die("Can't make list assignment to %%ENV on this system"); | |
864 | #else | |
d58bf5aa | 865 | dTHR; |
3280af22 | 866 | if (PL_localizing) { |
fb73857a | 867 | HE* entry; |
2d8e6c8d | 868 | STRLEN n_a; |
fb73857a | 869 | magic_clear_all_env(sv,mg); |
870 | hv_iterinit((HV*)sv); | |
871 | while (entry = hv_iternext((HV*)sv)) { | |
872 | I32 keylen; | |
873 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 874 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 875 | } |
876 | } | |
877 | #endif | |
878 | return 0; | |
879 | } | |
880 | ||
881 | int | |
864dbfa3 | 882 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 883 | { |
3e3baf6d TB |
884 | #if defined(VMS) |
885 | die("Can't make list assignment to %%ENV on this system"); | |
886 | #else | |
f2517201 | 887 | # ifdef WIN32 |
3e3baf6d TB |
888 | char *envv = GetEnvironmentStrings(); |
889 | char *cur = envv; | |
890 | STRLEN len; | |
891 | while (*cur) { | |
892 | char *end = strchr(cur,'='); | |
893 | if (end && end != cur) { | |
894 | *end = '\0'; | |
895 | my_setenv(cur,Nullch); | |
896 | *end = '='; | |
ac5c734f | 897 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
898 | } |
899 | else if ((len = strlen(cur))) | |
900 | cur += len+1; | |
901 | } | |
902 | FreeEnvironmentStrings(envv); | |
f2517201 GS |
903 | # else |
904 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
905 | I32 i; |
906 | ||
3280af22 | 907 | if (environ == PL_origenviron) |
f2517201 | 908 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
909 | else |
910 | for (i = 0; environ[i]; i++) | |
f2517201 GS |
911 | safesysfree(environ[i]); |
912 | # endif /* PERL_USE_SAFE_PUTENV */ | |
913 | ||
66b1d557 HM |
914 | environ[0] = Nullch; |
915 | ||
f2517201 GS |
916 | # endif /* WIN32 */ |
917 | #endif /* VMS */ | |
3e3baf6d | 918 | return 0; |
66b1d557 HM |
919 | } |
920 | ||
921 | int | |
864dbfa3 | 922 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 923 | { |
924 | I32 i; | |
2d8e6c8d | 925 | STRLEN n_a; |
88e89b8a | 926 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 927 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 928 | if (i) { |
22c35a8c GS |
929 | if(PL_psig_ptr[i]) |
930 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 931 | else { |
ff68c719 | 932 | Sighandler_t sigstate = rsignal_state(i); |
933 | ||
88e89b8a | 934 | /* cache state so we don't fetch it again */ |
ff68c719 | 935 | if(sigstate == SIG_IGN) |
88e89b8a | 936 | sv_setpv(sv,"IGNORE"); |
937 | else | |
3280af22 | 938 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 939 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 940 | SvTEMP_off(sv); |
941 | } | |
942 | } | |
943 | return 0; | |
944 | } | |
945 | int | |
864dbfa3 | 946 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 947 | { |
948 | I32 i; | |
2d8e6c8d | 949 | STRLEN n_a; |
88e89b8a | 950 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 951 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 952 | if (i) { |
22c35a8c GS |
953 | if(PL_psig_ptr[i]) { |
954 | SvREFCNT_dec(PL_psig_ptr[i]); | |
955 | PL_psig_ptr[i]=0; | |
88e89b8a | 956 | } |
22c35a8c GS |
957 | if(PL_psig_name[i]) { |
958 | SvREFCNT_dec(PL_psig_name[i]); | |
959 | PL_psig_name[i]=0; | |
88e89b8a | 960 | } |
961 | } | |
962 | return 0; | |
963 | } | |
3d37d572 | 964 | |
85e6fe83 | 965 | int |
864dbfa3 | 966 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 967 | { |
11343788 | 968 | dTHR; |
79072805 LW |
969 | register char *s; |
970 | I32 i; | |
748a9306 | 971 | SV** svp; |
e72dc28c | 972 | STRLEN len; |
a0d0e21e | 973 | |
e72dc28c | 974 | s = MgPV(mg,len); |
748a9306 LW |
975 | if (*s == '_') { |
976 | if (strEQ(s,"__DIE__")) | |
3280af22 | 977 | svp = &PL_diehook; |
748a9306 | 978 | else if (strEQ(s,"__WARN__")) |
3280af22 | 979 | svp = &PL_warnhook; |
748a9306 | 980 | else if (strEQ(s,"__PARSE__")) |
3280af22 | 981 | svp = &PL_parsehook; |
748a9306 LW |
982 | else |
983 | croak("No such hook: %s", s); | |
984 | i = 0; | |
4633a7c4 LW |
985 | if (*svp) { |
986 | SvREFCNT_dec(*svp); | |
987 | *svp = 0; | |
988 | } | |
748a9306 LW |
989 | } |
990 | else { | |
991 | i = whichsig(s); /* ...no, a brick */ | |
992 | if (!i) { | |
599cee73 PM |
993 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
994 | warner(WARN_SIGNAL, "No such signal: SIG%s", s); | |
748a9306 LW |
995 | return 0; |
996 | } | |
22c35a8c GS |
997 | SvREFCNT_dec(PL_psig_name[i]); |
998 | SvREFCNT_dec(PL_psig_ptr[i]); | |
999 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1000 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1001 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1002 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1003 | } |
a0d0e21e | 1004 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1005 | if (i) |
3280af22 | 1006 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1007 | else |
1008 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1009 | return 0; |
1010 | } | |
e72dc28c | 1011 | s = SvPV_force(sv,len); |
748a9306 LW |
1012 | if (strEQ(s,"IGNORE")) { |
1013 | if (i) | |
ff68c719 | 1014 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1015 | else |
1016 | *svp = 0; | |
1017 | } | |
1018 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1019 | if (i) | |
ff68c719 | 1020 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1021 | else |
1022 | *svp = 0; | |
1023 | } | |
79072805 | 1024 | else { |
5aabfad6 | 1025 | /* |
1026 | * We should warn if HINT_STRICT_REFS, but without | |
1027 | * access to a known hint bit in a known OP, we can't | |
1028 | * tell whether HINT_STRICT_REFS is in force or not. | |
1029 | */ | |
46fc3d4c | 1030 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1031 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1032 | if (i) |
3280af22 | 1033 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1034 | else |
1035 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1036 | } |
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | int | |
864dbfa3 | 1041 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1042 | { |
3280af22 | 1043 | PL_sub_generation++; |
463ee0b2 LW |
1044 | return 0; |
1045 | } | |
1046 | ||
1047 | int | |
864dbfa3 | 1048 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1049 | { |
a0d0e21e | 1050 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1051 | PL_amagic_generation++; |
463ee0b2 | 1052 | |
a0d0e21e LW |
1053 | return 0; |
1054 | } | |
463ee0b2 | 1055 | |
946ec16e | 1056 | int |
864dbfa3 | 1057 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1058 | { |
1059 | HV *hv = (HV*)LvTARG(sv); | |
1060 | HE *entry; | |
1061 | I32 i = 0; | |
1062 | ||
1063 | if (hv) { | |
1064 | (void) hv_iterinit(hv); | |
33c27489 | 1065 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1066 | i = HvKEYS(hv); |
1067 | else { | |
1068 | /*SUPPRESS 560*/ | |
1069 | while (entry = hv_iternext(hv)) { | |
1070 | i++; | |
1071 | } | |
1072 | } | |
1073 | } | |
1074 | ||
1075 | sv_setiv(sv, (IV)i); | |
1076 | return 0; | |
1077 | } | |
1078 | ||
1079 | int | |
864dbfa3 | 1080 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1081 | { |
1082 | if (LvTARG(sv)) { | |
1083 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1084 | } |
1085 | return 0; | |
93965878 | 1086 | } |
946ec16e | 1087 | |
e336de0d | 1088 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1089 | STATIC int |
864dbfa3 | 1090 | magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1091 | { |
1092 | dSP; | |
463ee0b2 | 1093 | |
924508f0 GS |
1094 | PUSHMARK(SP); |
1095 | EXTEND(SP, n); | |
33c27489 | 1096 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1097 | if (n > 1) { |
1098 | if (mg->mg_ptr) { | |
565764a8 | 1099 | if (mg->mg_len >= 0) |
79cb57f6 | 1100 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1101 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1102 | PUSHs((SV*)mg->mg_ptr); |
1103 | } | |
1104 | else if (mg->mg_type == 'p') { | |
565764a8 | 1105 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1106 | } |
1107 | } | |
1108 | if (n > 2) { | |
1109 | PUSHs(val); | |
88e89b8a | 1110 | } |
463ee0b2 LW |
1111 | PUTBACK; |
1112 | ||
864dbfa3 | 1113 | return call_method(meth, flags); |
946ec16e | 1114 | } |
1115 | ||
76e3520e | 1116 | STATIC int |
864dbfa3 | 1117 | magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1118 | { |
1119 | dSP; | |
463ee0b2 | 1120 | |
a0d0e21e LW |
1121 | ENTER; |
1122 | SAVETMPS; | |
e788e7d3 | 1123 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1124 | |
33c27489 | 1125 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1126 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1127 | } |
463ee0b2 | 1128 | |
d3acc0f7 | 1129 | POPSTACK; |
a0d0e21e LW |
1130 | FREETMPS; |
1131 | LEAVE; | |
1132 | return 0; | |
1133 | } | |
463ee0b2 | 1134 | |
a0d0e21e | 1135 | int |
864dbfa3 | 1136 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1137 | { |
1138 | magic_methpack(sv,mg,"FETCH"); | |
1139 | if (mg->mg_ptr) | |
1140 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1141 | return 0; |
1142 | } | |
1143 | ||
1144 | int | |
864dbfa3 | 1145 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1146 | { |
1147 | dSP; | |
a60c0954 | 1148 | ENTER; |
e788e7d3 | 1149 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1150 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1151 | POPSTACK; |
a60c0954 | 1152 | LEAVE; |
463ee0b2 LW |
1153 | return 0; |
1154 | } | |
1155 | ||
1156 | int | |
864dbfa3 | 1157 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1158 | { |
a0d0e21e LW |
1159 | return magic_methpack(sv,mg,"DELETE"); |
1160 | } | |
463ee0b2 | 1161 | |
93965878 NIS |
1162 | |
1163 | U32 | |
864dbfa3 | 1164 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 | 1165 | { |
e336de0d | 1166 | dSP; |
93965878 NIS |
1167 | U32 retval = 0; |
1168 | ||
1169 | ENTER; | |
1170 | SAVETMPS; | |
e788e7d3 | 1171 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1172 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1173 | sv = *PL_stack_sp--; |
a60c0954 | 1174 | retval = (U32) SvIV(sv)-1; |
93965878 | 1175 | } |
d3acc0f7 | 1176 | POPSTACK; |
93965878 NIS |
1177 | FREETMPS; |
1178 | LEAVE; | |
1179 | return retval; | |
1180 | } | |
1181 | ||
8ac85365 | 1182 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1183 | { |
1184 | dSP; | |
463ee0b2 | 1185 | |
e336de0d | 1186 | ENTER; |
e788e7d3 | 1187 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1188 | PUSHMARK(SP); |
33c27489 | 1189 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1190 | PUTBACK; |
864dbfa3 | 1191 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1192 | POPSTACK; |
a60c0954 | 1193 | LEAVE; |
463ee0b2 LW |
1194 | return 0; |
1195 | } | |
1196 | ||
1197 | int | |
864dbfa3 | 1198 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1199 | { |
463ee0b2 | 1200 | dSP; |
a0d0e21e | 1201 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1202 | |
1203 | ENTER; | |
a0d0e21e | 1204 | SAVETMPS; |
e788e7d3 | 1205 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1206 | PUSHMARK(SP); |
1207 | EXTEND(SP, 2); | |
33c27489 | 1208 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1209 | if (SvOK(key)) |
1210 | PUSHs(key); | |
1211 | PUTBACK; | |
1212 | ||
864dbfa3 | 1213 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1214 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1215 | |
d3acc0f7 | 1216 | POPSTACK; |
a0d0e21e LW |
1217 | FREETMPS; |
1218 | LEAVE; | |
79072805 LW |
1219 | return 0; |
1220 | } | |
1221 | ||
1222 | int | |
864dbfa3 | 1223 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1224 | { |
1225 | return magic_methpack(sv,mg,"EXISTS"); | |
1226 | } | |
1227 | ||
1228 | int | |
864dbfa3 | 1229 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1230 | { |
11343788 | 1231 | dTHR; |
79072805 LW |
1232 | OP *o; |
1233 | I32 i; | |
1234 | GV* gv; | |
1235 | SV** svp; | |
2d8e6c8d | 1236 | STRLEN n_a; |
79072805 | 1237 | |
3280af22 | 1238 | gv = PL_DBline; |
79072805 | 1239 | i = SvTRUE(sv); |
188ea221 | 1240 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1241 | atoi(MgPV(mg,n_a)), FALSE); |
8990e307 | 1242 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1243 | o->op_private = i; |
79072805 LW |
1244 | else |
1245 | warn("Can't break at that line\n"); | |
1246 | return 0; | |
1247 | } | |
1248 | ||
1249 | int | |
864dbfa3 | 1250 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1251 | { |
0f15f207 | 1252 | dTHR; |
3280af22 | 1253 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1254 | return 0; |
1255 | } | |
1256 | ||
1257 | int | |
864dbfa3 | 1258 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1259 | { |
0f15f207 | 1260 | dTHR; |
3280af22 | 1261 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1262 | return 0; |
1263 | } | |
1264 | ||
1265 | int | |
864dbfa3 | 1266 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1267 | { |
1268 | SV* lsv = LvTARG(sv); | |
1269 | ||
1270 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1271 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1272 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1273 | dTHR; |
a0ed51b3 LW |
1274 | I32 i = mg->mg_len; |
1275 | if (IN_UTF8) | |
1276 | sv_pos_b2u(lsv, &i); | |
1277 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1278 | return 0; |
1279 | } | |
1280 | } | |
1281 | (void)SvOK_off(sv); | |
1282 | return 0; | |
1283 | } | |
1284 | ||
1285 | int | |
864dbfa3 | 1286 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1287 | { |
1288 | SV* lsv = LvTARG(sv); | |
1289 | SSize_t pos; | |
1290 | STRLEN len; | |
a0ed51b3 | 1291 | STRLEN ulen; |
c485e607 | 1292 | dTHR; |
a0d0e21e LW |
1293 | |
1294 | mg = 0; | |
1295 | ||
1296 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1297 | mg = mg_find(lsv, 'g'); | |
1298 | if (!mg) { | |
1299 | if (!SvOK(sv)) | |
1300 | return 0; | |
1301 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1302 | mg = mg_find(lsv, 'g'); | |
1303 | } | |
1304 | else if (!SvOK(sv)) { | |
565764a8 | 1305 | mg->mg_len = -1; |
a0d0e21e LW |
1306 | return 0; |
1307 | } | |
1308 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1309 | ||
c485e607 | 1310 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 LW |
1311 | |
1312 | if (IN_UTF8) { | |
1313 | ulen = sv_len_utf8(lsv); | |
1314 | if (ulen) | |
1315 | len = ulen; | |
1316 | else | |
1317 | ulen = 0; | |
1318 | } | |
1319 | ||
a0d0e21e LW |
1320 | if (pos < 0) { |
1321 | pos += len; | |
1322 | if (pos < 0) | |
1323 | pos = 0; | |
1324 | } | |
1325 | else if (pos > len) | |
1326 | pos = len; | |
a0ed51b3 LW |
1327 | |
1328 | if (ulen) { | |
1329 | I32 p = pos; | |
1330 | sv_pos_u2b(lsv, &p, 0); | |
1331 | pos = p; | |
1332 | } | |
1333 | ||
565764a8 | 1334 | mg->mg_len = pos; |
71be2cbc | 1335 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1336 | |
79072805 LW |
1337 | return 0; |
1338 | } | |
1339 | ||
1340 | int | |
864dbfa3 | 1341 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1342 | { |
8646b087 | 1343 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1344 | SvFAKE_off(sv); | |
946ec16e | 1345 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1346 | SvFAKE_on(sv); |
1347 | } | |
1348 | else | |
946ec16e | 1349 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1350 | return 0; |
1351 | } | |
1352 | ||
1353 | int | |
864dbfa3 | 1354 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1355 | { |
1356 | register char *s; | |
1357 | GV* gv; | |
2d8e6c8d | 1358 | STRLEN n_a; |
79072805 LW |
1359 | |
1360 | if (!SvOK(sv)) | |
1361 | return 0; | |
2d8e6c8d | 1362 | s = SvPV(sv, n_a); |
79072805 LW |
1363 | if (*s == '*' && s[1]) |
1364 | s++; | |
85e6fe83 | 1365 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1366 | if (sv == (SV*)gv) |
1367 | return 0; | |
1368 | if (GvGP(sv)) | |
88e89b8a | 1369 | gp_free((GV*)sv); |
79072805 | 1370 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1371 | return 0; |
1372 | } | |
1373 | ||
1374 | int | |
864dbfa3 | 1375 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1376 | { |
1377 | STRLEN len; | |
1378 | SV *lsv = LvTARG(sv); | |
1379 | char *tmps = SvPV(lsv,len); | |
1380 | I32 offs = LvTARGOFF(sv); | |
1381 | I32 rem = LvTARGLEN(sv); | |
1382 | ||
1383 | if (offs > len) | |
1384 | offs = len; | |
1385 | if (rem + offs > len) | |
1386 | rem = len - offs; | |
1387 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1388 | return 0; | |
1389 | } | |
1390 | ||
1391 | int | |
864dbfa3 | 1392 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1393 | { |
8990e307 LW |
1394 | STRLEN len; |
1395 | char *tmps = SvPV(sv,len); | |
1396 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1397 | return 0; |
1398 | } | |
1399 | ||
1400 | int | |
864dbfa3 | 1401 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1402 | { |
a863c7d1 | 1403 | dTHR; |
565764a8 DL |
1404 | TAINT_IF((mg->mg_len & 1) || |
1405 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1406 | return 0; |
1407 | } | |
1408 | ||
1409 | int | |
864dbfa3 | 1410 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1411 | { |
11343788 | 1412 | dTHR; |
3280af22 NIS |
1413 | if (PL_localizing) { |
1414 | if (PL_localizing == 1) | |
565764a8 | 1415 | mg->mg_len <<= 1; |
748a9306 | 1416 | else |
565764a8 | 1417 | mg->mg_len >>= 1; |
a0d0e21e | 1418 | } |
3280af22 | 1419 | else if (PL_tainted) |
565764a8 | 1420 | mg->mg_len |= 1; |
748a9306 | 1421 | else |
565764a8 | 1422 | mg->mg_len &= ~1; |
463ee0b2 LW |
1423 | return 0; |
1424 | } | |
1425 | ||
1426 | int | |
864dbfa3 | 1427 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1428 | { |
1429 | SV *lsv = LvTARG(sv); | |
1430 | unsigned char *s; | |
1431 | unsigned long retnum; | |
1432 | STRLEN lsvlen; | |
1433 | I32 len; | |
1434 | I32 offset; | |
1435 | I32 size; | |
1436 | ||
1437 | if (!lsv) { | |
1438 | SvOK_off(sv); | |
1439 | return 0; | |
1440 | } | |
1441 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1442 | offset = LvTARGOFF(sv); | |
1443 | size = LvTARGLEN(sv); | |
1444 | len = (offset + size + 7) / 8; | |
1445 | ||
1446 | /* Copied from pp_vec() */ | |
1447 | ||
1448 | if (len > lsvlen) { | |
1449 | if (size <= 8) | |
1450 | retnum = 0; | |
1451 | else { | |
1452 | offset >>= 3; | |
1453 | if (size == 16) { | |
1454 | if (offset >= lsvlen) | |
1455 | retnum = 0; | |
1456 | else | |
1457 | retnum = (unsigned long) s[offset] << 8; | |
1458 | } | |
1459 | else if (size == 32) { | |
1460 | if (offset >= lsvlen) | |
1461 | retnum = 0; | |
1462 | else if (offset + 1 >= lsvlen) | |
1463 | retnum = (unsigned long) s[offset] << 24; | |
1464 | else if (offset + 2 >= lsvlen) | |
1465 | retnum = ((unsigned long) s[offset] << 24) + | |
1466 | ((unsigned long) s[offset + 1] << 16); | |
1467 | else | |
1468 | retnum = ((unsigned long) s[offset] << 24) + | |
1469 | ((unsigned long) s[offset + 1] << 16) + | |
1470 | (s[offset + 2] << 8); | |
1471 | } | |
1472 | } | |
1473 | } | |
1474 | else if (size < 8) | |
1475 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1476 | else { | |
1477 | offset >>= 3; | |
1478 | if (size == 8) | |
1479 | retnum = s[offset]; | |
1480 | else if (size == 16) | |
1481 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1482 | else if (size == 32) | |
1483 | retnum = ((unsigned long) s[offset] << 24) + | |
1484 | ((unsigned long) s[offset + 1] << 16) + | |
1485 | (s[offset + 2] << 8) + s[offset+3]; | |
1486 | } | |
1487 | ||
1488 | sv_setuv(sv, (UV)retnum); | |
1489 | return 0; | |
1490 | } | |
1491 | ||
1492 | int | |
864dbfa3 | 1493 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1494 | { |
1495 | do_vecset(sv); /* XXX slurp this routine */ | |
1496 | return 0; | |
1497 | } | |
1498 | ||
1499 | int | |
864dbfa3 | 1500 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1501 | { |
71be2cbc | 1502 | SV *targ = Nullsv; |
5f05dabc | 1503 | if (LvTARGLEN(sv)) { |
68dc0745 | 1504 | if (mg->mg_obj) { |
74e13ce4 GS |
1505 | SV *ahv = LvTARG(sv); |
1506 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1507 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1508 | if (he) | |
1509 | targ = HeVAL(he); | |
1510 | } | |
1511 | else { | |
1512 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1513 | if (svp) | |
1514 | targ = *svp; | |
1515 | } | |
68dc0745 | 1516 | } |
1517 | else { | |
3c78fafa | 1518 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1519 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1520 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1521 | } | |
3280af22 | 1522 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1523 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1524 | /* somebody else defined it for us */ |
1525 | SvREFCNT_dec(LvTARG(sv)); | |
1526 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1527 | LvTARGLEN(sv) = 0; | |
1528 | SvREFCNT_dec(mg->mg_obj); | |
1529 | mg->mg_obj = Nullsv; | |
1530 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1531 | } | |
5f05dabc | 1532 | } |
71be2cbc | 1533 | else |
1534 | targ = LvTARG(sv); | |
3280af22 | 1535 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1536 | return 0; |
1537 | } | |
1538 | ||
1539 | int | |
864dbfa3 | 1540 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1541 | { |
1542 | if (LvTARGLEN(sv)) | |
68dc0745 | 1543 | vivify_defelem(sv); |
1544 | if (LvTARG(sv)) { | |
5f05dabc | 1545 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1546 | SvSETMAGIC(LvTARG(sv)); |
1547 | } | |
5f05dabc | 1548 | return 0; |
1549 | } | |
1550 | ||
71be2cbc | 1551 | void |
864dbfa3 | 1552 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1553 | { |
e858de61 | 1554 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1555 | MAGIC *mg; |
1556 | SV *value = Nullsv; | |
71be2cbc | 1557 | |
68dc0745 | 1558 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1559 | return; |
68dc0745 | 1560 | if (mg->mg_obj) { |
74e13ce4 | 1561 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1562 | STRLEN n_a; |
74e13ce4 | 1563 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1564 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1565 | if (he) |
1566 | value = HeVAL(he); | |
1567 | } | |
1568 | else { | |
af7f9c15 | 1569 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1570 | if (svp) |
1571 | value = *svp; | |
1572 | } | |
3280af22 | 1573 | if (!value || value == &PL_sv_undef) |
2d8e6c8d | 1574 | croak(PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1575 | } |
68dc0745 | 1576 | else { |
1577 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1578 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1579 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1580 | else { | |
1581 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1582 | if (!svp || (value = *svp) == &PL_sv_undef) |
22c35a8c | 1583 | croak(PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1584 | } |
1585 | } | |
3e3baf6d | 1586 | (void)SvREFCNT_inc(value); |
68dc0745 | 1587 | SvREFCNT_dec(LvTARG(sv)); |
1588 | LvTARG(sv) = value; | |
71be2cbc | 1589 | LvTARGLEN(sv) = 0; |
68dc0745 | 1590 | SvREFCNT_dec(mg->mg_obj); |
1591 | mg->mg_obj = Nullsv; | |
1592 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1593 | } |
1594 | ||
1595 | int | |
864dbfa3 | 1596 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1597 | { |
1598 | AV *av = (AV*)mg->mg_obj; | |
1599 | SV **svp = AvARRAY(av); | |
1600 | I32 i = AvFILLp(av); | |
1601 | while (i >= 0) { | |
1602 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1603 | if (!SvWEAKREF(svp[i])) | |
1604 | croak("panic: magic_killbackrefs"); | |
1605 | /* XXX Should we check that it hasn't changed? */ | |
1606 | SvRV(svp[i]) = 0; | |
1607 | SvOK_off(svp[i]); | |
1608 | SvWEAKREF_off(svp[i]); | |
1609 | svp[i] = &PL_sv_undef; | |
1610 | } | |
1611 | i--; | |
1612 | } | |
1613 | return 0; | |
1614 | } | |
1615 | ||
1616 | int | |
864dbfa3 | 1617 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1618 | { |
565764a8 | 1619 | mg->mg_len = -1; |
c6496cc7 | 1620 | SvSCREAM_off(sv); |
93a17b20 LW |
1621 | return 0; |
1622 | } | |
1623 | ||
1624 | int | |
864dbfa3 | 1625 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1626 | { |
463ee0b2 | 1627 | sv_unmagic(sv, 'B'); |
79072805 LW |
1628 | SvVALID_off(sv); |
1629 | return 0; | |
1630 | } | |
1631 | ||
1632 | int | |
864dbfa3 | 1633 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1634 | { |
1635 | sv_unmagic(sv, 'f'); | |
1636 | SvCOMPILED_off(sv); | |
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | int | |
864dbfa3 | 1641 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1642 | { |
1643 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1644 | ||
1645 | if (uf && uf->uf_set) | |
1646 | (*uf->uf_set)(uf->uf_index, sv); | |
1647 | return 0; | |
1648 | } | |
1649 | ||
c277df42 | 1650 | int |
864dbfa3 | 1651 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1652 | { |
1653 | regexp *re = (regexp *)mg->mg_obj; | |
1654 | ReREFCNT_dec(re); | |
1655 | return 0; | |
1656 | } | |
1657 | ||
7a4c00b4 | 1658 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1659 | int |
864dbfa3 | 1660 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1661 | { |
1662 | /* | |
838b5b74 | 1663 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1664 | * and vanished with a faint plop. |
1665 | */ | |
7a4c00b4 | 1666 | if (mg->mg_ptr) { |
1667 | Safefree(mg->mg_ptr); | |
1668 | mg->mg_ptr = NULL; | |
565764a8 | 1669 | mg->mg_len = -1; |
7a4c00b4 | 1670 | } |
bbce6d69 | 1671 | return 0; |
1672 | } | |
7a4c00b4 | 1673 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1674 | |
1675 | int | |
864dbfa3 | 1676 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1677 | { |
11343788 | 1678 | dTHR; |
79072805 LW |
1679 | register char *s; |
1680 | I32 i; | |
8990e307 | 1681 | STRLEN len; |
79072805 | 1682 | switch (*mg->mg_ptr) { |
748a9306 | 1683 | case '\001': /* ^A */ |
3280af22 | 1684 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1685 | break; |
599cee73 PM |
1686 | case '\002': /* ^B */ |
1687 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1688 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) | |
e24b16f9 | 1689 | PL_compiling.cop_warnings = WARN_ALL; |
599cee73 | 1690 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 | 1691 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 | 1692 | else { |
e24b16f9 GS |
1693 | if (PL_compiling.cop_warnings != WARN_NONE && |
1694 | PL_compiling.cop_warnings != WARN_ALL) | |
1695 | sv_setsv(PL_compiling.cop_warnings, sv); | |
599cee73 | 1696 | else |
e24b16f9 | 1697 | PL_compiling.cop_warnings = newSVsv(sv) ; |
599cee73 PM |
1698 | } |
1699 | } | |
1700 | break; | |
49460fe6 NIS |
1701 | |
1702 | case '\003': /* ^C */ | |
1703 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1704 | break; | |
1705 | ||
79072805 | 1706 | case '\004': /* ^D */ |
3280af22 | 1707 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1708 | DEBUG_x(dump_all()); |
1709 | break; | |
28f23441 | 1710 | case '\005': /* ^E */ |
1711 | #ifdef VMS | |
1712 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1713 | #else | |
22fae026 TM |
1714 | #ifdef WIN32 |
1715 | SetLastError( SvIV(sv) ); | |
1716 | #else | |
f86702cc | 1717 | /* will anyone ever use this? */ |
1718 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1719 | #endif |
22fae026 | 1720 | #endif |
28f23441 | 1721 | break; |
79072805 | 1722 | case '\006': /* ^F */ |
3280af22 | 1723 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1724 | break; |
a0d0e21e | 1725 | case '\010': /* ^H */ |
3280af22 | 1726 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1727 | break; |
9d116dd7 | 1728 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1729 | if (PL_inplace) |
1730 | Safefree(PL_inplace); | |
79072805 | 1731 | if (SvOK(sv)) |
2d8e6c8d | 1732 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1733 | else |
3280af22 | 1734 | PL_inplace = Nullch; |
79072805 | 1735 | break; |
28f23441 | 1736 | case '\017': /* ^O */ |
3280af22 NIS |
1737 | if (PL_osname) |
1738 | Safefree(PL_osname); | |
28f23441 | 1739 | if (SvOK(sv)) |
2d8e6c8d | 1740 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1741 | else |
3280af22 | 1742 | PL_osname = Nullch; |
28f23441 | 1743 | break; |
79072805 | 1744 | case '\020': /* ^P */ |
3280af22 | 1745 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1746 | break; |
1747 | case '\024': /* ^T */ | |
88e89b8a | 1748 | #ifdef BIG_TIME |
6b88bc9c | 1749 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1750 | #else |
3280af22 | 1751 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1752 | #endif |
79072805 LW |
1753 | break; |
1754 | case '\027': /* ^W */ | |
599cee73 PM |
1755 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1756 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1757 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; | |
1758 | } | |
79072805 LW |
1759 | break; |
1760 | case '.': | |
3280af22 NIS |
1761 | if (PL_localizing) { |
1762 | if (PL_localizing == 1) | |
1763 | save_sptr((SV**)&PL_last_in_gv); | |
748a9306 | 1764 | } |
3280af22 NIS |
1765 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1766 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1767 | break; |
1768 | case '^': | |
3280af22 | 1769 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1770 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1771 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1772 | break; |
1773 | case '~': | |
3280af22 | 1774 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1775 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1776 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1777 | break; |
1778 | case '=': | |
3280af22 | 1779 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1780 | break; |
1781 | case '-': | |
3280af22 NIS |
1782 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1783 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1784 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1785 | break; |
1786 | case '%': | |
3280af22 | 1787 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1788 | break; |
1789 | case '|': | |
4b65379b | 1790 | { |
3280af22 | 1791 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1792 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1793 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1794 | else { | |
1795 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1796 | PerlIO *ofp = IoOFP(io); | |
1797 | if (ofp) | |
1798 | (void)PerlIO_flush(ofp); | |
1799 | IoFLAGS(io) |= IOf_FLUSH; | |
1800 | } | |
1801 | } | |
79072805 LW |
1802 | } |
1803 | break; | |
1804 | case '*': | |
463ee0b2 | 1805 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1806 | PL_multiline = (i != 0); |
79072805 LW |
1807 | break; |
1808 | case '/': | |
3280af22 NIS |
1809 | SvREFCNT_dec(PL_nrs); |
1810 | PL_nrs = newSVsv(sv); | |
1811 | SvREFCNT_dec(PL_rs); | |
1812 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1813 | break; |
1814 | case '\\': | |
3280af22 NIS |
1815 | if (PL_ors) |
1816 | Safefree(PL_ors); | |
e3c19b7b | 1817 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 | 1818 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b | 1819 | else { |
3280af22 NIS |
1820 | PL_ors = Nullch; |
1821 | PL_orslen = 0; | |
e3c19b7b | 1822 | } |
79072805 LW |
1823 | break; |
1824 | case ',': | |
3280af22 NIS |
1825 | if (PL_ofs) |
1826 | Safefree(PL_ofs); | |
1827 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1828 | break; |
1829 | case '#': | |
3280af22 NIS |
1830 | if (PL_ofmt) |
1831 | Safefree(PL_ofmt); | |
2d8e6c8d | 1832 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1833 | break; |
1834 | case '[': | |
3280af22 | 1835 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1836 | break; |
1837 | case '?': | |
ff0cee69 | 1838 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1839 | if (PL_localizing == 2) { |
1840 | PL_statusvalue = LvTARGOFF(sv); | |
1841 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1842 | } |
1843 | else | |
1844 | #endif | |
1845 | #ifdef VMSISH_STATUS | |
1846 | if (VMSISH_STATUS) | |
1847 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1848 | else | |
1849 | #endif | |
1850 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1851 | break; |
1852 | case '!': | |
78987ded | 1853 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1854 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1855 | break; |
1856 | case '<': | |
3280af22 NIS |
1857 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1858 | if (PL_delaymagic) { | |
1859 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1860 | break; /* don't do magic till later */ |
1861 | } | |
1862 | #ifdef HAS_SETRUID | |
b28d0864 | 1863 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1864 | #else |
1865 | #ifdef HAS_SETREUID | |
3280af22 | 1866 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1867 | #else |
85e6fe83 | 1868 | #ifdef HAS_SETRESUID |
b28d0864 | 1869 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1870 | #else |
b28d0864 NIS |
1871 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1872 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1873 | else { |
b28d0864 | 1874 | PL_uid = (I32)PerlProc_getuid(); |
463ee0b2 | 1875 | croak("setruid() not implemented"); |
a0d0e21e | 1876 | } |
79072805 LW |
1877 | #endif |
1878 | #endif | |
85e6fe83 | 1879 | #endif |
3280af22 NIS |
1880 | PL_uid = (I32)PerlProc_getuid(); |
1881 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1882 | break; |
1883 | case '>': | |
3280af22 NIS |
1884 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1885 | if (PL_delaymagic) { | |
1886 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1887 | break; /* don't do magic till later */ |
1888 | } | |
1889 | #ifdef HAS_SETEUID | |
3280af22 | 1890 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1891 | #else |
1892 | #ifdef HAS_SETREUID | |
b28d0864 | 1893 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1894 | #else |
1895 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1896 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1897 | #else |
b28d0864 NIS |
1898 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1899 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1900 | else { |
b28d0864 | 1901 | PL_euid = (I32)PerlProc_geteuid(); |
463ee0b2 | 1902 | croak("seteuid() not implemented"); |
a0d0e21e | 1903 | } |
79072805 LW |
1904 | #endif |
1905 | #endif | |
85e6fe83 | 1906 | #endif |
3280af22 NIS |
1907 | PL_euid = (I32)PerlProc_geteuid(); |
1908 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1909 | break; |
1910 | case '(': | |
3280af22 NIS |
1911 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1912 | if (PL_delaymagic) { | |
1913 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1914 | break; /* don't do magic till later */ |
1915 | } | |
1916 | #ifdef HAS_SETRGID | |
b28d0864 | 1917 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1918 | #else |
1919 | #ifdef HAS_SETREGID | |
3280af22 | 1920 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1921 | #else |
1922 | #ifdef HAS_SETRESGID | |
b28d0864 | 1923 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1924 | #else |
b28d0864 NIS |
1925 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1926 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1927 | else { |
b28d0864 | 1928 | PL_gid = (I32)PerlProc_getgid(); |
463ee0b2 | 1929 | croak("setrgid() not implemented"); |
748a9306 | 1930 | } |
79072805 LW |
1931 | #endif |
1932 | #endif | |
85e6fe83 | 1933 | #endif |
3280af22 NIS |
1934 | PL_gid = (I32)PerlProc_getgid(); |
1935 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1936 | break; |
1937 | case ')': | |
5cd24f17 | 1938 | #ifdef HAS_SETGROUPS |
1939 | { | |
2d8e6c8d | 1940 | char *p = SvPV(sv, len); |
5cd24f17 | 1941 | Groups_t gary[NGROUPS]; |
1942 | ||
1943 | SET_NUMERIC_STANDARD(); | |
1944 | while (isSPACE(*p)) | |
1945 | ++p; | |
3280af22 | 1946 | PL_egid = I_V(atof(p)); |
5cd24f17 | 1947 | for (i = 0; i < NGROUPS; ++i) { |
1948 | while (*p && !isSPACE(*p)) | |
1949 | ++p; | |
1950 | while (isSPACE(*p)) | |
1951 | ++p; | |
1952 | if (!*p) | |
1953 | break; | |
1954 | gary[i] = I_V(atof(p)); | |
1955 | } | |
8cc95fdb | 1956 | if (i) |
1957 | (void)setgroups(i, gary); | |
5cd24f17 | 1958 | } |
1959 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1960 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1961 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1962 | if (PL_delaymagic) { |
1963 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1964 | break; /* don't do magic till later */ |
1965 | } | |
1966 | #ifdef HAS_SETEGID | |
3280af22 | 1967 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1968 | #else |
1969 | #ifdef HAS_SETREGID | |
b28d0864 | 1970 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1971 | #else |
1972 | #ifdef HAS_SETRESGID | |
b28d0864 | 1973 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1974 | #else |
b28d0864 NIS |
1975 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1976 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1977 | else { |
b28d0864 | 1978 | PL_egid = (I32)PerlProc_getegid(); |
463ee0b2 | 1979 | croak("setegid() not implemented"); |
748a9306 | 1980 | } |
79072805 LW |
1981 | #endif |
1982 | #endif | |
85e6fe83 | 1983 | #endif |
3280af22 NIS |
1984 | PL_egid = (I32)PerlProc_getegid(); |
1985 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1986 | break; |
1987 | case ':': | |
2d8e6c8d | 1988 | PL_chopset = SvPV_force(sv,len); |
79072805 LW |
1989 | break; |
1990 | case '0': | |
3280af22 NIS |
1991 | if (!PL_origalen) { |
1992 | s = PL_origargv[0]; | |
79072805 LW |
1993 | s += strlen(s); |
1994 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1995 | for (i = 1; i < PL_origargc; i++) { |
1996 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1997 | #ifdef OS2 |
6b88bc9c | 1998 | || PL_origargv[i] == s + 2 |
fb73857a | 1999 | #endif |
2000 | ) | |
379c4362 GS |
2001 | { |
2002 | ++s; | |
2003 | s += strlen(s); /* this one is ok too */ | |
2004 | } | |
fb73857a | 2005 | else |
2006 | break; | |
79072805 | 2007 | } |
bbce6d69 | 2008 | /* can grab env area too? */ |
3280af22 | 2009 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2010 | #ifdef OS2 |
6b88bc9c | 2011 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 2012 | #endif |
2013 | )) { | |
66b1d557 | 2014 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2015 | /* force copy of environment */ |
3280af22 | 2016 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2017 | if (PL_origenviron[i] == s + 1) { |
2018 | ++s; | |
2019 | s += strlen(s); | |
2020 | } | |
fb73857a | 2021 | else |
2022 | break; | |
79072805 | 2023 | } |
3280af22 | 2024 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2025 | } |
a0d0e21e | 2026 | s = SvPV_force(sv,len); |
8990e307 | 2027 | i = len; |
3280af22 NIS |
2028 | if (i >= PL_origalen) { |
2029 | i = PL_origalen; | |
fb73857a | 2030 | /* don't allow system to limit $0 seen by script */ |
2031 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2032 | Copy(s, PL_origargv[0], i, char); |
2033 | s = PL_origargv[0]+i; | |
fb73857a | 2034 | *s = '\0'; |
79072805 LW |
2035 | } |
2036 | else { | |
3280af22 NIS |
2037 | Copy(s, PL_origargv[0], i, char); |
2038 | s = PL_origargv[0]+i; | |
79072805 | 2039 | *s++ = '\0'; |
3280af22 | 2040 | while (++i < PL_origalen) |
8990e307 | 2041 | *s++ = ' '; |
3280af22 NIS |
2042 | s = PL_origargv[0]+i; |
2043 | for (i = 1; i < PL_origargc; i++) | |
2044 | PL_origargv[i] = Nullch; | |
79072805 LW |
2045 | } |
2046 | break; | |
a863c7d1 MB |
2047 | #ifdef USE_THREADS |
2048 | case '@': | |
38a03e6e | 2049 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2050 | break; |
2051 | #endif /* USE_THREADS */ | |
79072805 LW |
2052 | } |
2053 | return 0; | |
2054 | } | |
2055 | ||
f93b4edd MB |
2056 | #ifdef USE_THREADS |
2057 | int | |
864dbfa3 | 2058 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd MB |
2059 | { |
2060 | dTHR; | |
8b73bbec | 2061 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 | 2062 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd MB |
2063 | if (MgOWNER(mg)) |
2064 | croak("panic: magic_mutexfree"); | |
2065 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
2066 | COND_DESTROY(MgCONDP(mg)); | |
2067 | return 0; | |
2068 | } | |
2069 | #endif /* USE_THREADS */ | |
2070 | ||
79072805 | 2071 | I32 |
864dbfa3 | 2072 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2073 | { |
2074 | register char **sigv; | |
2075 | ||
22c35a8c | 2076 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2077 | if (strEQ(sig,*sigv)) |
22c35a8c | 2078 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2079 | #ifdef SIGCLD |
2080 | if (strEQ(sig,"CHLD")) | |
2081 | return SIGCLD; | |
2082 | #endif | |
2083 | #ifdef SIGCHLD | |
2084 | if (strEQ(sig,"CLD")) | |
2085 | return SIGCHLD; | |
2086 | #endif | |
2087 | return 0; | |
2088 | } | |
2089 | ||
84902520 TB |
2090 | static SV* sig_sv; |
2091 | ||
76e3520e | 2092 | STATIC void |
864dbfa3 | 2093 | unwind_handler_stack(pTHX_ void *p) |
84902520 | 2094 | { |
ff26ac79 | 2095 | dTHR; |
84902520 TB |
2096 | U32 flags = *(U32*)p; |
2097 | ||
2098 | if (flags & 1) | |
3280af22 | 2099 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 TB |
2100 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2101 | if (flags & 64) | |
2102 | SvREFCNT_dec(sig_sv); | |
2103 | } | |
2104 | ||
ecfc5424 | 2105 | Signal_t |
864dbfa3 | 2106 | Perl_sighandler(pTHX_ int sig) |
79072805 LW |
2107 | { |
2108 | dSP; | |
00d579c5 | 2109 | GV *gv = Nullgv; |
a0d0e21e | 2110 | HV *st; |
3280af22 | 2111 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2112 | CV *cv = Nullcv; |
533c011a | 2113 | OP *myop = PL_op; |
84902520 | 2114 | U32 flags = 0; |
3280af22 NIS |
2115 | I32 o_save_i = PL_savestack_ix, type; |
2116 | XPV *tXpv = PL_Xpv; | |
84902520 | 2117 | |
3280af22 | 2118 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2119 | flags |= 1; |
3280af22 | 2120 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2121 | flags |= 4; |
3280af22 | 2122 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2123 | flags |= 8; |
3280af22 | 2124 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2125 | flags |= 16; |
2126 | ||
22c35a8c | 2127 | if (!PL_psig_ptr[sig]) |
ff0cee69 | 2128 | die("Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2129 | PL_sig_name[sig]); |
ff0cee69 | 2130 | |
84902520 TB |
2131 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2132 | infinity, so we fix 4 (in fact 5): */ | |
2133 | if (flags & 1) { | |
3280af22 NIS |
2134 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2135 | o_save_i = PL_savestack_ix; | |
565764a8 | 2136 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2137 | } |
2138 | if (flags & 4) | |
3280af22 | 2139 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2140 | if (flags & 8) { |
3280af22 NIS |
2141 | PL_retstack_ix++; |
2142 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2143 | } |
2144 | if (flags & 16) | |
3280af22 | 2145 | PL_scopestack_ix += 1; |
84902520 | 2146 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2147 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2148 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2149 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2150 | |
a0d0e21e | 2151 | if (!cv || !CvROOT(cv)) { |
599cee73 PM |
2152 | if (ckWARN(WARN_SIGNAL)) |
2153 | warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", | |
22c35a8c | 2154 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2155 | : ((cv && CvGV(cv)) |
2156 | ? GvENAME(CvGV(cv)) | |
2157 | : "__ANON__"))); | |
2158 | goto cleanup; | |
79072805 LW |
2159 | } |
2160 | ||
22c35a8c GS |
2161 | if(PL_psig_name[sig]) { |
2162 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2163 | flags |= 64; |
2164 | sig_sv = sv; | |
2165 | } else { | |
ff0cee69 | 2166 | sv = sv_newmortal(); |
22c35a8c | 2167 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2168 | } |
e336de0d | 2169 | |
e788e7d3 | 2170 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2171 | PUSHMARK(SP); |
79072805 | 2172 | PUSHs(sv); |
79072805 | 2173 | PUTBACK; |
a0d0e21e | 2174 | |
864dbfa3 | 2175 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2176 | |
d3acc0f7 | 2177 | POPSTACK; |
00d579c5 | 2178 | cleanup: |
84902520 | 2179 | if (flags & 1) |
3280af22 | 2180 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2181 | if (flags & 4) |
3280af22 | 2182 | PL_markstack_ptr--; |
84902520 | 2183 | if (flags & 8) |
3280af22 | 2184 | PL_retstack_ix--; |
84902520 | 2185 | if (flags & 16) |
3280af22 | 2186 | PL_scopestack_ix -= 1; |
84902520 TB |
2187 | if (flags & 64) |
2188 | SvREFCNT_dec(sv); | |
533c011a | 2189 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2190 | |
3280af22 NIS |
2191 | PL_Sv = tSv; /* Restore global temporaries. */ |
2192 | PL_Xpv = tXpv; | |
79072805 LW |
2193 | return; |
2194 | } | |
4e35701f NIS |
2195 | |
2196 |