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 | ||
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 | 527 | { |
0cb96387 | 528 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 529 | } |
22fae026 TM |
530 | else |
531 | sv_setpv(sv, ""); | |
532 | SetLastError(dwErr); | |
533 | } | |
534 | #else | |
946ec16e | 535 | sv_setnv(sv, (double)errno); |
28f23441 | 536 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
537 | #endif | |
88e89b8a | 538 | #endif |
22fae026 | 539 | #endif |
946ec16e | 540 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 541 | break; |
79072805 | 542 | case '\006': /* ^F */ |
3280af22 | 543 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 544 | break; |
a0d0e21e | 545 | case '\010': /* ^H */ |
3280af22 | 546 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 547 | break; |
9d116dd7 | 548 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
549 | if (PL_inplace) |
550 | sv_setpv(sv, PL_inplace); | |
79072805 | 551 | else |
3280af22 | 552 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 553 | break; |
28f23441 | 554 | case '\017': /* ^O */ |
3280af22 | 555 | sv_setpv(sv, PL_osname); |
28f23441 | 556 | break; |
79072805 | 557 | case '\020': /* ^P */ |
3280af22 | 558 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 559 | break; |
fb73857a | 560 | case '\023': /* ^S */ |
d58bf5aa MB |
561 | { |
562 | dTHR; | |
3280af22 | 563 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 564 | SvOK_off(sv); |
3280af22 | 565 | else if (PL_in_eval) |
d58bf5aa MB |
566 | sv_setiv(sv, 1); |
567 | else | |
568 | sv_setiv(sv, 0); | |
569 | } | |
fb73857a | 570 | break; |
79072805 | 571 | case '\024': /* ^T */ |
88e89b8a | 572 | #ifdef BIG_TIME |
6b88bc9c | 573 | sv_setnv(sv, PL_basetime); |
88e89b8a | 574 | #else |
3280af22 | 575 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 576 | #endif |
79072805 LW |
577 | break; |
578 | case '\027': /* ^W */ | |
599cee73 | 579 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 LW |
580 | break; |
581 | case '1': case '2': case '3': case '4': | |
582 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 583 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
584 | I32 s1, t1; |
585 | ||
a863c7d1 MB |
586 | /* |
587 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
588 | * XXX Does the new way break anything? | |
589 | */ | |
590 | paren = atoi(mg->mg_ptr); | |
79072805 | 591 | getparen: |
d9f97599 | 592 | if (paren <= rx->nparens && |
cf93c79d IZ |
593 | (s1 = rx->startp[paren]) != -1 && |
594 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 595 | { |
cf93c79d IZ |
596 | i = t1 - s1; |
597 | s = rx->subbeg + s1; | |
13f57bf8 | 598 | getrx: |
748a9306 | 599 | if (i >= 0) { |
13f57bf8 | 600 | bool was_tainted; |
3280af22 NIS |
601 | if (PL_tainting) { |
602 | was_tainted = PL_tainted; | |
603 | PL_tainted = FALSE; | |
13f57bf8 | 604 | } |
cf93c79d | 605 | sv_setpvn(sv, s, i); |
3280af22 NIS |
606 | if (PL_tainting) |
607 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
608 | break; |
609 | } | |
79072805 | 610 | } |
79072805 | 611 | } |
3280af22 | 612 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
613 | break; |
614 | case '+': | |
3280af22 | 615 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 616 | paren = rx->lastparen; |
a0d0e21e LW |
617 | if (paren) |
618 | goto getparen; | |
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)) { |
cf93c79d IZ |
624 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
625 | i = rx->startp[0]; | |
13f57bf8 | 626 | goto getrx; |
79072805 | 627 | } |
79072805 | 628 | } |
3280af22 | 629 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
630 | break; |
631 | case '\'': | |
3280af22 | 632 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
633 | if (rx->subbeg && rx->endp[0] != -1) { |
634 | s = rx->subbeg + rx->endp[0]; | |
635 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 636 | goto getrx; |
79072805 | 637 | } |
79072805 | 638 | } |
3280af22 | 639 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
640 | break; |
641 | case '.': | |
642 | #ifndef lint | |
3280af22 NIS |
643 | if (GvIO(PL_last_in_gv)) { |
644 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
645 | } |
646 | #endif | |
647 | break; | |
648 | case '?': | |
809a5acc | 649 | { |
809a5acc | 650 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 651 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
652 | LvTARGOFF(sv) = PL_statusvalue; |
653 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 654 | #endif |
809a5acc | 655 | } |
79072805 LW |
656 | break; |
657 | case '^': | |
3280af22 | 658 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
659 | if (s) |
660 | sv_setpv(sv,s); | |
661 | else { | |
3280af22 | 662 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
663 | sv_catpv(sv,"_TOP"); |
664 | } | |
665 | break; | |
666 | case '~': | |
3280af22 | 667 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 668 | if (!s) |
3280af22 | 669 | s = GvENAME(PL_defoutgv); |
79072805 LW |
670 | sv_setpv(sv,s); |
671 | break; | |
672 | #ifndef lint | |
673 | case '=': | |
3280af22 | 674 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
675 | break; |
676 | case '-': | |
3280af22 | 677 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
678 | break; |
679 | case '%': | |
3280af22 | 680 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
681 | break; |
682 | #endif | |
683 | case ':': | |
684 | break; | |
685 | case '/': | |
686 | break; | |
687 | case '[': | |
3280af22 | 688 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
689 | break; |
690 | case '|': | |
3280af22 | 691 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
692 | break; |
693 | case ',': | |
3280af22 | 694 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
695 | break; |
696 | case '\\': | |
3280af22 | 697 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
698 | break; |
699 | case '#': | |
3280af22 | 700 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
701 | break; |
702 | case '!': | |
a5f75d66 | 703 | #ifdef VMS |
946ec16e | 704 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 705 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 706 | #else |
88e89b8a | 707 | { |
708 | int saveerrno = errno; | |
946ec16e | 709 | sv_setnv(sv, (double)errno); |
88e89b8a | 710 | #ifdef OS2 |
711 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
712 | else | |
a5f75d66 | 713 | #endif |
2304df62 | 714 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 715 | errno = saveerrno; |
716 | } | |
717 | #endif | |
946ec16e | 718 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
719 | break; |
720 | case '<': | |
3280af22 | 721 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
722 | break; |
723 | case '>': | |
3280af22 | 724 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
725 | break; |
726 | case '(': | |
3280af22 | 727 | sv_setiv(sv, (IV)PL_gid); |
cea2e8a9 | 728 | Perl_sv_setpvf(aTHX_ sv, "%Vd", (IV)PL_gid); |
79072805 LW |
729 | goto add_groups; |
730 | case ')': | |
3280af22 | 731 | sv_setiv(sv, (IV)PL_egid); |
cea2e8a9 | 732 | Perl_sv_setpvf(aTHX_ sv, "%Vd", (IV)PL_egid); |
79072805 | 733 | add_groups: |
79072805 | 734 | #ifdef HAS_GETGROUPS |
79072805 | 735 | { |
a0d0e21e | 736 | Groups_t gary[NGROUPS]; |
79072805 | 737 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 738 | while (--i >= 0) |
cea2e8a9 | 739 | Perl_sv_catpvf(aTHX_ sv, " %Vd", (IV)gary[i]); |
79072805 LW |
740 | } |
741 | #endif | |
29355cf7 | 742 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
743 | break; |
744 | case '*': | |
745 | break; | |
746 | case '0': | |
747 | break; | |
a863c7d1 MB |
748 | #ifdef USE_THREADS |
749 | case '@': | |
38a03e6e | 750 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
751 | break; |
752 | #endif /* USE_THREADS */ | |
79072805 | 753 | } |
a0d0e21e | 754 | return 0; |
79072805 LW |
755 | } |
756 | ||
757 | int | |
864dbfa3 | 758 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
759 | { |
760 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
761 | ||
762 | if (uf && uf->uf_val) | |
763 | (*uf->uf_val)(uf->uf_index, sv); | |
764 | return 0; | |
765 | } | |
766 | ||
767 | int | |
864dbfa3 | 768 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
769 | { |
770 | register char *s; | |
88e89b8a | 771 | char *ptr; |
5aabfad6 | 772 | STRLEN len, klen; |
a0d0e21e | 773 | I32 i; |
1e422769 | 774 | |
a0d0e21e | 775 | s = SvPV(sv,len); |
5aabfad6 | 776 | ptr = MgPV(mg,klen); |
88e89b8a | 777 | my_setenv(ptr, s); |
1e422769 | 778 | |
a0d0e21e LW |
779 | #ifdef DYNAMIC_ENV_FETCH |
780 | /* We just undefd an environment var. Is a replacement */ | |
781 | /* waiting in the wings? */ | |
782 | if (!len) { | |
5aabfad6 | 783 | SV **valp; |
6b88bc9c | 784 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 785 | s = SvPV(*valp, len); |
a0d0e21e LW |
786 | } |
787 | #endif | |
1e422769 | 788 | |
39e571d4 | 789 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
790 | /* And you'll never guess what the dog had */ |
791 | /* in its mouth... */ | |
3280af22 | 792 | if (PL_tainting) { |
1e422769 | 793 | MgTAINTEDDIR_off(mg); |
794 | #ifdef VMS | |
5aabfad6 | 795 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 796 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
797 | struct stat sbuf; | |
798 | int i = 0, j = 0; | |
799 | ||
800 | do { /* DCL$PATH may be a search list */ | |
801 | while (1) { /* as may dev portion of any element */ | |
802 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
803 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
804 | cando_by_name(S_IWUSR,0,elt) ) { | |
805 | MgTAINTEDDIR_on(mg); | |
806 | return 0; | |
807 | } | |
808 | } | |
809 | if ((cp = strchr(elt, ':')) != Nullch) | |
810 | *cp = '\0'; | |
811 | if (my_trnlnm(elt, eltbuf, j++)) | |
812 | elt = eltbuf; | |
813 | else | |
814 | break; | |
815 | } | |
816 | j = 0; | |
817 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
818 | } | |
819 | #endif /* VMS */ | |
5aabfad6 | 820 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 821 | char *strend = s + len; |
463ee0b2 LW |
822 | |
823 | while (s < strend) { | |
96827780 | 824 | char tmpbuf[256]; |
1e422769 | 825 | struct stat st; |
96827780 | 826 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 827 | s, strend, ':', &i); |
463ee0b2 | 828 | s++; |
96827780 MB |
829 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
830 | || *tmpbuf != '/' | |
c6ed36e1 | 831 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 832 | MgTAINTEDDIR_on(mg); |
1e422769 | 833 | return 0; |
834 | } | |
463ee0b2 | 835 | } |
79072805 LW |
836 | } |
837 | } | |
39e571d4 | 838 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 839 | |
79072805 LW |
840 | return 0; |
841 | } | |
842 | ||
843 | int | |
864dbfa3 | 844 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 845 | { |
2d8e6c8d GS |
846 | STRLEN n_a; |
847 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
848 | return 0; |
849 | } | |
850 | ||
88e89b8a | 851 | int |
864dbfa3 | 852 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 853 | { |
854 | #if defined(VMS) | |
cea2e8a9 | 855 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 856 | #else |
d58bf5aa | 857 | dTHR; |
3280af22 | 858 | if (PL_localizing) { |
fb73857a | 859 | HE* entry; |
2d8e6c8d | 860 | STRLEN n_a; |
fb73857a | 861 | magic_clear_all_env(sv,mg); |
862 | hv_iterinit((HV*)sv); | |
863 | while (entry = hv_iternext((HV*)sv)) { | |
864 | I32 keylen; | |
865 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 866 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 867 | } |
868 | } | |
869 | #endif | |
870 | return 0; | |
871 | } | |
872 | ||
873 | int | |
864dbfa3 | 874 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 875 | { |
3e3baf6d | 876 | #if defined(VMS) |
cea2e8a9 | 877 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 878 | #else |
f2517201 | 879 | # ifdef WIN32 |
3e3baf6d TB |
880 | char *envv = GetEnvironmentStrings(); |
881 | char *cur = envv; | |
882 | STRLEN len; | |
883 | while (*cur) { | |
884 | char *end = strchr(cur,'='); | |
885 | if (end && end != cur) { | |
886 | *end = '\0'; | |
887 | my_setenv(cur,Nullch); | |
888 | *end = '='; | |
ac5c734f | 889 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
890 | } |
891 | else if ((len = strlen(cur))) | |
892 | cur += len+1; | |
893 | } | |
894 | FreeEnvironmentStrings(envv); | |
f2517201 GS |
895 | # else |
896 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
897 | I32 i; |
898 | ||
3280af22 | 899 | if (environ == PL_origenviron) |
f2517201 | 900 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
901 | else |
902 | for (i = 0; environ[i]; i++) | |
f2517201 GS |
903 | safesysfree(environ[i]); |
904 | # endif /* PERL_USE_SAFE_PUTENV */ | |
905 | ||
66b1d557 HM |
906 | environ[0] = Nullch; |
907 | ||
f2517201 GS |
908 | # endif /* WIN32 */ |
909 | #endif /* VMS */ | |
3e3baf6d | 910 | return 0; |
66b1d557 HM |
911 | } |
912 | ||
913 | int | |
864dbfa3 | 914 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 915 | { |
916 | I32 i; | |
2d8e6c8d | 917 | STRLEN n_a; |
88e89b8a | 918 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 919 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 920 | if (i) { |
22c35a8c GS |
921 | if(PL_psig_ptr[i]) |
922 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 923 | else { |
ff68c719 | 924 | Sighandler_t sigstate = rsignal_state(i); |
925 | ||
88e89b8a | 926 | /* cache state so we don't fetch it again */ |
ff68c719 | 927 | if(sigstate == SIG_IGN) |
88e89b8a | 928 | sv_setpv(sv,"IGNORE"); |
929 | else | |
3280af22 | 930 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 931 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 932 | SvTEMP_off(sv); |
933 | } | |
934 | } | |
935 | return 0; | |
936 | } | |
937 | int | |
864dbfa3 | 938 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 939 | { |
940 | I32 i; | |
2d8e6c8d | 941 | STRLEN n_a; |
88e89b8a | 942 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 943 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 944 | if (i) { |
22c35a8c GS |
945 | if(PL_psig_ptr[i]) { |
946 | SvREFCNT_dec(PL_psig_ptr[i]); | |
947 | PL_psig_ptr[i]=0; | |
88e89b8a | 948 | } |
22c35a8c GS |
949 | if(PL_psig_name[i]) { |
950 | SvREFCNT_dec(PL_psig_name[i]); | |
951 | PL_psig_name[i]=0; | |
88e89b8a | 952 | } |
953 | } | |
954 | return 0; | |
955 | } | |
3d37d572 | 956 | |
85e6fe83 | 957 | int |
864dbfa3 | 958 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 959 | { |
11343788 | 960 | dTHR; |
79072805 LW |
961 | register char *s; |
962 | I32 i; | |
748a9306 | 963 | SV** svp; |
e72dc28c | 964 | STRLEN len; |
a0d0e21e | 965 | |
e72dc28c | 966 | s = MgPV(mg,len); |
748a9306 LW |
967 | if (*s == '_') { |
968 | if (strEQ(s,"__DIE__")) | |
3280af22 | 969 | svp = &PL_diehook; |
748a9306 | 970 | else if (strEQ(s,"__WARN__")) |
3280af22 | 971 | svp = &PL_warnhook; |
748a9306 | 972 | else if (strEQ(s,"__PARSE__")) |
3280af22 | 973 | svp = &PL_parsehook; |
748a9306 | 974 | else |
cea2e8a9 | 975 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 976 | i = 0; |
4633a7c4 LW |
977 | if (*svp) { |
978 | SvREFCNT_dec(*svp); | |
979 | *svp = 0; | |
980 | } | |
748a9306 LW |
981 | } |
982 | else { | |
983 | i = whichsig(s); /* ...no, a brick */ | |
984 | if (!i) { | |
599cee73 | 985 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
cea2e8a9 | 986 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
987 | return 0; |
988 | } | |
22c35a8c GS |
989 | SvREFCNT_dec(PL_psig_name[i]); |
990 | SvREFCNT_dec(PL_psig_ptr[i]); | |
991 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 992 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 993 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 994 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 995 | } |
a0d0e21e | 996 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 997 | if (i) |
3280af22 | 998 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
999 | else |
1000 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1001 | return 0; |
1002 | } | |
e72dc28c | 1003 | s = SvPV_force(sv,len); |
748a9306 LW |
1004 | if (strEQ(s,"IGNORE")) { |
1005 | if (i) | |
ff68c719 | 1006 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1007 | else |
1008 | *svp = 0; | |
1009 | } | |
1010 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1011 | if (i) | |
ff68c719 | 1012 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1013 | else |
1014 | *svp = 0; | |
1015 | } | |
79072805 | 1016 | else { |
5aabfad6 | 1017 | /* |
1018 | * We should warn if HINT_STRICT_REFS, but without | |
1019 | * access to a known hint bit in a known OP, we can't | |
1020 | * tell whether HINT_STRICT_REFS is in force or not. | |
1021 | */ | |
46fc3d4c | 1022 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1023 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1024 | if (i) |
3280af22 | 1025 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1026 | else |
1027 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1028 | } |
1029 | return 0; | |
1030 | } | |
1031 | ||
1032 | int | |
864dbfa3 | 1033 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1034 | { |
3280af22 | 1035 | PL_sub_generation++; |
463ee0b2 LW |
1036 | return 0; |
1037 | } | |
1038 | ||
1039 | int | |
864dbfa3 | 1040 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1041 | { |
a0d0e21e | 1042 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1043 | PL_amagic_generation++; |
463ee0b2 | 1044 | |
a0d0e21e LW |
1045 | return 0; |
1046 | } | |
463ee0b2 | 1047 | |
946ec16e | 1048 | int |
864dbfa3 | 1049 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1050 | { |
1051 | HV *hv = (HV*)LvTARG(sv); | |
1052 | HE *entry; | |
1053 | I32 i = 0; | |
1054 | ||
1055 | if (hv) { | |
1056 | (void) hv_iterinit(hv); | |
33c27489 | 1057 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1058 | i = HvKEYS(hv); |
1059 | else { | |
1060 | /*SUPPRESS 560*/ | |
1061 | while (entry = hv_iternext(hv)) { | |
1062 | i++; | |
1063 | } | |
1064 | } | |
1065 | } | |
1066 | ||
1067 | sv_setiv(sv, (IV)i); | |
1068 | return 0; | |
1069 | } | |
1070 | ||
1071 | int | |
864dbfa3 | 1072 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1073 | { |
1074 | if (LvTARG(sv)) { | |
1075 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1076 | } |
1077 | return 0; | |
93965878 | 1078 | } |
946ec16e | 1079 | |
e336de0d | 1080 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1081 | STATIC int |
cea2e8a9 | 1082 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1083 | { |
1084 | dSP; | |
463ee0b2 | 1085 | |
924508f0 GS |
1086 | PUSHMARK(SP); |
1087 | EXTEND(SP, n); | |
33c27489 | 1088 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1089 | if (n > 1) { |
1090 | if (mg->mg_ptr) { | |
565764a8 | 1091 | if (mg->mg_len >= 0) |
79cb57f6 | 1092 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1093 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1094 | PUSHs((SV*)mg->mg_ptr); |
1095 | } | |
1096 | else if (mg->mg_type == 'p') { | |
565764a8 | 1097 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1098 | } |
1099 | } | |
1100 | if (n > 2) { | |
1101 | PUSHs(val); | |
88e89b8a | 1102 | } |
463ee0b2 LW |
1103 | PUTBACK; |
1104 | ||
864dbfa3 | 1105 | return call_method(meth, flags); |
946ec16e | 1106 | } |
1107 | ||
76e3520e | 1108 | STATIC int |
cea2e8a9 | 1109 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1110 | { |
1111 | dSP; | |
463ee0b2 | 1112 | |
a0d0e21e LW |
1113 | ENTER; |
1114 | SAVETMPS; | |
e788e7d3 | 1115 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1116 | |
33c27489 | 1117 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1118 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1119 | } |
463ee0b2 | 1120 | |
d3acc0f7 | 1121 | POPSTACK; |
a0d0e21e LW |
1122 | FREETMPS; |
1123 | LEAVE; | |
1124 | return 0; | |
1125 | } | |
463ee0b2 | 1126 | |
a0d0e21e | 1127 | int |
864dbfa3 | 1128 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1129 | { |
1130 | magic_methpack(sv,mg,"FETCH"); | |
1131 | if (mg->mg_ptr) | |
1132 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1133 | return 0; |
1134 | } | |
1135 | ||
1136 | int | |
864dbfa3 | 1137 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1138 | { |
1139 | dSP; | |
a60c0954 | 1140 | ENTER; |
e788e7d3 | 1141 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1142 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1143 | POPSTACK; |
a60c0954 | 1144 | LEAVE; |
463ee0b2 LW |
1145 | return 0; |
1146 | } | |
1147 | ||
1148 | int | |
864dbfa3 | 1149 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1150 | { |
a0d0e21e LW |
1151 | return magic_methpack(sv,mg,"DELETE"); |
1152 | } | |
463ee0b2 | 1153 | |
93965878 NIS |
1154 | |
1155 | U32 | |
864dbfa3 | 1156 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 | 1157 | { |
e336de0d | 1158 | dSP; |
93965878 NIS |
1159 | U32 retval = 0; |
1160 | ||
1161 | ENTER; | |
1162 | SAVETMPS; | |
e788e7d3 | 1163 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1164 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1165 | sv = *PL_stack_sp--; |
a60c0954 | 1166 | retval = (U32) SvIV(sv)-1; |
93965878 | 1167 | } |
d3acc0f7 | 1168 | POPSTACK; |
93965878 NIS |
1169 | FREETMPS; |
1170 | LEAVE; | |
1171 | return retval; | |
1172 | } | |
1173 | ||
cea2e8a9 GS |
1174 | int |
1175 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1176 | { |
1177 | dSP; | |
463ee0b2 | 1178 | |
e336de0d | 1179 | ENTER; |
e788e7d3 | 1180 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1181 | PUSHMARK(SP); |
33c27489 | 1182 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1183 | PUTBACK; |
864dbfa3 | 1184 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1185 | POPSTACK; |
a60c0954 | 1186 | LEAVE; |
463ee0b2 LW |
1187 | return 0; |
1188 | } | |
1189 | ||
1190 | int | |
864dbfa3 | 1191 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1192 | { |
463ee0b2 | 1193 | dSP; |
a0d0e21e | 1194 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1195 | |
1196 | ENTER; | |
a0d0e21e | 1197 | SAVETMPS; |
e788e7d3 | 1198 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1199 | PUSHMARK(SP); |
1200 | EXTEND(SP, 2); | |
33c27489 | 1201 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1202 | if (SvOK(key)) |
1203 | PUSHs(key); | |
1204 | PUTBACK; | |
1205 | ||
864dbfa3 | 1206 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1207 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1208 | |
d3acc0f7 | 1209 | POPSTACK; |
a0d0e21e LW |
1210 | FREETMPS; |
1211 | LEAVE; | |
79072805 LW |
1212 | return 0; |
1213 | } | |
1214 | ||
1215 | int | |
864dbfa3 | 1216 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1217 | { |
1218 | return magic_methpack(sv,mg,"EXISTS"); | |
1219 | } | |
1220 | ||
1221 | int | |
864dbfa3 | 1222 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1223 | { |
11343788 | 1224 | dTHR; |
79072805 LW |
1225 | OP *o; |
1226 | I32 i; | |
1227 | GV* gv; | |
1228 | SV** svp; | |
2d8e6c8d | 1229 | STRLEN n_a; |
79072805 | 1230 | |
3280af22 | 1231 | gv = PL_DBline; |
79072805 | 1232 | i = SvTRUE(sv); |
188ea221 | 1233 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1234 | atoi(MgPV(mg,n_a)), FALSE); |
8990e307 | 1235 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1236 | o->op_private = i; |
79072805 | 1237 | else |
cea2e8a9 | 1238 | Perl_warn(aTHX_ "Can't break at that line\n"); |
79072805 LW |
1239 | return 0; |
1240 | } | |
1241 | ||
1242 | int | |
864dbfa3 | 1243 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1244 | { |
0f15f207 | 1245 | dTHR; |
3280af22 | 1246 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1247 | return 0; |
1248 | } | |
1249 | ||
1250 | int | |
864dbfa3 | 1251 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1252 | { |
0f15f207 | 1253 | dTHR; |
3280af22 | 1254 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1255 | return 0; |
1256 | } | |
1257 | ||
1258 | int | |
864dbfa3 | 1259 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1260 | { |
1261 | SV* lsv = LvTARG(sv); | |
1262 | ||
1263 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1264 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1265 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1266 | dTHR; |
a0ed51b3 LW |
1267 | I32 i = mg->mg_len; |
1268 | if (IN_UTF8) | |
1269 | sv_pos_b2u(lsv, &i); | |
1270 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1271 | return 0; |
1272 | } | |
1273 | } | |
1274 | (void)SvOK_off(sv); | |
1275 | return 0; | |
1276 | } | |
1277 | ||
1278 | int | |
864dbfa3 | 1279 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1280 | { |
1281 | SV* lsv = LvTARG(sv); | |
1282 | SSize_t pos; | |
1283 | STRLEN len; | |
a0ed51b3 | 1284 | STRLEN ulen; |
c485e607 | 1285 | dTHR; |
a0d0e21e LW |
1286 | |
1287 | mg = 0; | |
1288 | ||
1289 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1290 | mg = mg_find(lsv, 'g'); | |
1291 | if (!mg) { | |
1292 | if (!SvOK(sv)) | |
1293 | return 0; | |
1294 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1295 | mg = mg_find(lsv, 'g'); | |
1296 | } | |
1297 | else if (!SvOK(sv)) { | |
565764a8 | 1298 | mg->mg_len = -1; |
a0d0e21e LW |
1299 | return 0; |
1300 | } | |
1301 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1302 | ||
c485e607 | 1303 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 LW |
1304 | |
1305 | if (IN_UTF8) { | |
1306 | ulen = sv_len_utf8(lsv); | |
1307 | if (ulen) | |
1308 | len = ulen; | |
1309 | else | |
1310 | ulen = 0; | |
1311 | } | |
1312 | ||
a0d0e21e LW |
1313 | if (pos < 0) { |
1314 | pos += len; | |
1315 | if (pos < 0) | |
1316 | pos = 0; | |
1317 | } | |
1318 | else if (pos > len) | |
1319 | pos = len; | |
a0ed51b3 LW |
1320 | |
1321 | if (ulen) { | |
1322 | I32 p = pos; | |
1323 | sv_pos_u2b(lsv, &p, 0); | |
1324 | pos = p; | |
1325 | } | |
1326 | ||
565764a8 | 1327 | mg->mg_len = pos; |
71be2cbc | 1328 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1329 | |
79072805 LW |
1330 | return 0; |
1331 | } | |
1332 | ||
1333 | int | |
864dbfa3 | 1334 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1335 | { |
8646b087 | 1336 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1337 | SvFAKE_off(sv); | |
946ec16e | 1338 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1339 | SvFAKE_on(sv); |
1340 | } | |
1341 | else | |
946ec16e | 1342 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1343 | return 0; |
1344 | } | |
1345 | ||
1346 | int | |
864dbfa3 | 1347 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1348 | { |
1349 | register char *s; | |
1350 | GV* gv; | |
2d8e6c8d | 1351 | STRLEN n_a; |
79072805 LW |
1352 | |
1353 | if (!SvOK(sv)) | |
1354 | return 0; | |
2d8e6c8d | 1355 | s = SvPV(sv, n_a); |
79072805 LW |
1356 | if (*s == '*' && s[1]) |
1357 | s++; | |
85e6fe83 | 1358 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1359 | if (sv == (SV*)gv) |
1360 | return 0; | |
1361 | if (GvGP(sv)) | |
88e89b8a | 1362 | gp_free((GV*)sv); |
79072805 | 1363 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1364 | return 0; |
1365 | } | |
1366 | ||
1367 | int | |
864dbfa3 | 1368 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1369 | { |
1370 | STRLEN len; | |
1371 | SV *lsv = LvTARG(sv); | |
1372 | char *tmps = SvPV(lsv,len); | |
1373 | I32 offs = LvTARGOFF(sv); | |
1374 | I32 rem = LvTARGLEN(sv); | |
1375 | ||
1376 | if (offs > len) | |
1377 | offs = len; | |
1378 | if (rem + offs > len) | |
1379 | rem = len - offs; | |
1380 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1381 | return 0; | |
1382 | } | |
1383 | ||
1384 | int | |
864dbfa3 | 1385 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1386 | { |
8990e307 LW |
1387 | STRLEN len; |
1388 | char *tmps = SvPV(sv,len); | |
1389 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1390 | return 0; |
1391 | } | |
1392 | ||
1393 | int | |
864dbfa3 | 1394 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1395 | { |
a863c7d1 | 1396 | dTHR; |
565764a8 DL |
1397 | TAINT_IF((mg->mg_len & 1) || |
1398 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1399 | return 0; |
1400 | } | |
1401 | ||
1402 | int | |
864dbfa3 | 1403 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1404 | { |
11343788 | 1405 | dTHR; |
3280af22 NIS |
1406 | if (PL_localizing) { |
1407 | if (PL_localizing == 1) | |
565764a8 | 1408 | mg->mg_len <<= 1; |
748a9306 | 1409 | else |
565764a8 | 1410 | mg->mg_len >>= 1; |
a0d0e21e | 1411 | } |
3280af22 | 1412 | else if (PL_tainted) |
565764a8 | 1413 | mg->mg_len |= 1; |
748a9306 | 1414 | else |
565764a8 | 1415 | mg->mg_len &= ~1; |
463ee0b2 LW |
1416 | return 0; |
1417 | } | |
1418 | ||
1419 | int | |
864dbfa3 | 1420 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1421 | { |
1422 | SV *lsv = LvTARG(sv); | |
1423 | unsigned char *s; | |
1424 | unsigned long retnum; | |
1425 | STRLEN lsvlen; | |
1426 | I32 len; | |
1427 | I32 offset; | |
1428 | I32 size; | |
1429 | ||
1430 | if (!lsv) { | |
1431 | SvOK_off(sv); | |
1432 | return 0; | |
1433 | } | |
1434 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1435 | offset = LvTARGOFF(sv); | |
1436 | size = LvTARGLEN(sv); | |
1437 | len = (offset + size + 7) / 8; | |
1438 | ||
1439 | /* Copied from pp_vec() */ | |
1440 | ||
1441 | if (len > lsvlen) { | |
1442 | if (size <= 8) | |
1443 | retnum = 0; | |
1444 | else { | |
1445 | offset >>= 3; | |
1446 | if (size == 16) { | |
1447 | if (offset >= lsvlen) | |
1448 | retnum = 0; | |
1449 | else | |
1450 | retnum = (unsigned long) s[offset] << 8; | |
1451 | } | |
1452 | else if (size == 32) { | |
1453 | if (offset >= lsvlen) | |
1454 | retnum = 0; | |
1455 | else if (offset + 1 >= lsvlen) | |
1456 | retnum = (unsigned long) s[offset] << 24; | |
1457 | else if (offset + 2 >= lsvlen) | |
1458 | retnum = ((unsigned long) s[offset] << 24) + | |
1459 | ((unsigned long) s[offset + 1] << 16); | |
1460 | else | |
1461 | retnum = ((unsigned long) s[offset] << 24) + | |
1462 | ((unsigned long) s[offset + 1] << 16) + | |
1463 | (s[offset + 2] << 8); | |
1464 | } | |
1465 | } | |
1466 | } | |
1467 | else if (size < 8) | |
1468 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1469 | else { | |
1470 | offset >>= 3; | |
1471 | if (size == 8) | |
1472 | retnum = s[offset]; | |
1473 | else if (size == 16) | |
1474 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1475 | else if (size == 32) | |
1476 | retnum = ((unsigned long) s[offset] << 24) + | |
1477 | ((unsigned long) s[offset + 1] << 16) + | |
1478 | (s[offset + 2] << 8) + s[offset+3]; | |
1479 | } | |
1480 | ||
1481 | sv_setuv(sv, (UV)retnum); | |
1482 | return 0; | |
1483 | } | |
1484 | ||
1485 | int | |
864dbfa3 | 1486 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1487 | { |
1488 | do_vecset(sv); /* XXX slurp this routine */ | |
1489 | return 0; | |
1490 | } | |
1491 | ||
1492 | int | |
864dbfa3 | 1493 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1494 | { |
71be2cbc | 1495 | SV *targ = Nullsv; |
5f05dabc | 1496 | if (LvTARGLEN(sv)) { |
68dc0745 | 1497 | if (mg->mg_obj) { |
74e13ce4 GS |
1498 | SV *ahv = LvTARG(sv); |
1499 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1500 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1501 | if (he) | |
1502 | targ = HeVAL(he); | |
1503 | } | |
1504 | else { | |
1505 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1506 | if (svp) | |
1507 | targ = *svp; | |
1508 | } | |
68dc0745 | 1509 | } |
1510 | else { | |
3c78fafa | 1511 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1512 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1513 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1514 | } | |
3280af22 | 1515 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1516 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1517 | /* somebody else defined it for us */ |
1518 | SvREFCNT_dec(LvTARG(sv)); | |
1519 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1520 | LvTARGLEN(sv) = 0; | |
1521 | SvREFCNT_dec(mg->mg_obj); | |
1522 | mg->mg_obj = Nullsv; | |
1523 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1524 | } | |
5f05dabc | 1525 | } |
71be2cbc | 1526 | else |
1527 | targ = LvTARG(sv); | |
3280af22 | 1528 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1529 | return 0; |
1530 | } | |
1531 | ||
1532 | int | |
864dbfa3 | 1533 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1534 | { |
1535 | if (LvTARGLEN(sv)) | |
68dc0745 | 1536 | vivify_defelem(sv); |
1537 | if (LvTARG(sv)) { | |
5f05dabc | 1538 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1539 | SvSETMAGIC(LvTARG(sv)); |
1540 | } | |
5f05dabc | 1541 | return 0; |
1542 | } | |
1543 | ||
71be2cbc | 1544 | void |
864dbfa3 | 1545 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1546 | { |
e858de61 | 1547 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1548 | MAGIC *mg; |
1549 | SV *value = Nullsv; | |
71be2cbc | 1550 | |
68dc0745 | 1551 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1552 | return; |
68dc0745 | 1553 | if (mg->mg_obj) { |
74e13ce4 | 1554 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1555 | STRLEN n_a; |
74e13ce4 | 1556 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1557 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1558 | if (he) |
1559 | value = HeVAL(he); | |
1560 | } | |
1561 | else { | |
af7f9c15 | 1562 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1563 | if (svp) |
1564 | value = *svp; | |
1565 | } | |
3280af22 | 1566 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1567 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1568 | } |
68dc0745 | 1569 | else { |
1570 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1571 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1572 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1573 | else { | |
1574 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1575 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1576 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1577 | } |
1578 | } | |
3e3baf6d | 1579 | (void)SvREFCNT_inc(value); |
68dc0745 | 1580 | SvREFCNT_dec(LvTARG(sv)); |
1581 | LvTARG(sv) = value; | |
71be2cbc | 1582 | LvTARGLEN(sv) = 0; |
68dc0745 | 1583 | SvREFCNT_dec(mg->mg_obj); |
1584 | mg->mg_obj = Nullsv; | |
1585 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1586 | } |
1587 | ||
1588 | int | |
864dbfa3 | 1589 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1590 | { |
1591 | AV *av = (AV*)mg->mg_obj; | |
1592 | SV **svp = AvARRAY(av); | |
1593 | I32 i = AvFILLp(av); | |
1594 | while (i >= 0) { | |
1595 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1596 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1597 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1598 | /* XXX Should we check that it hasn't changed? */ |
1599 | SvRV(svp[i]) = 0; | |
1600 | SvOK_off(svp[i]); | |
1601 | SvWEAKREF_off(svp[i]); | |
1602 | svp[i] = &PL_sv_undef; | |
1603 | } | |
1604 | i--; | |
1605 | } | |
1606 | return 0; | |
1607 | } | |
1608 | ||
1609 | int | |
864dbfa3 | 1610 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1611 | { |
565764a8 | 1612 | mg->mg_len = -1; |
c6496cc7 | 1613 | SvSCREAM_off(sv); |
93a17b20 LW |
1614 | return 0; |
1615 | } | |
1616 | ||
1617 | int | |
864dbfa3 | 1618 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1619 | { |
463ee0b2 | 1620 | sv_unmagic(sv, 'B'); |
79072805 LW |
1621 | SvVALID_off(sv); |
1622 | return 0; | |
1623 | } | |
1624 | ||
1625 | int | |
864dbfa3 | 1626 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1627 | { |
1628 | sv_unmagic(sv, 'f'); | |
1629 | SvCOMPILED_off(sv); | |
1630 | return 0; | |
1631 | } | |
1632 | ||
1633 | int | |
864dbfa3 | 1634 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1635 | { |
1636 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1637 | ||
1638 | if (uf && uf->uf_set) | |
1639 | (*uf->uf_set)(uf->uf_index, sv); | |
1640 | return 0; | |
1641 | } | |
1642 | ||
c277df42 | 1643 | int |
864dbfa3 | 1644 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1645 | { |
1646 | regexp *re = (regexp *)mg->mg_obj; | |
1647 | ReREFCNT_dec(re); | |
1648 | return 0; | |
1649 | } | |
1650 | ||
7a4c00b4 | 1651 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1652 | int |
864dbfa3 | 1653 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1654 | { |
1655 | /* | |
838b5b74 | 1656 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1657 | * and vanished with a faint plop. |
1658 | */ | |
7a4c00b4 | 1659 | if (mg->mg_ptr) { |
1660 | Safefree(mg->mg_ptr); | |
1661 | mg->mg_ptr = NULL; | |
565764a8 | 1662 | mg->mg_len = -1; |
7a4c00b4 | 1663 | } |
bbce6d69 | 1664 | return 0; |
1665 | } | |
7a4c00b4 | 1666 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1667 | |
1668 | int | |
864dbfa3 | 1669 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1670 | { |
11343788 | 1671 | dTHR; |
79072805 LW |
1672 | register char *s; |
1673 | I32 i; | |
8990e307 | 1674 | STRLEN len; |
79072805 | 1675 | switch (*mg->mg_ptr) { |
748a9306 | 1676 | case '\001': /* ^A */ |
3280af22 | 1677 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1678 | break; |
599cee73 PM |
1679 | case '\002': /* ^B */ |
1680 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1681 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) | |
e24b16f9 | 1682 | PL_compiling.cop_warnings = WARN_ALL; |
599cee73 | 1683 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 | 1684 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 | 1685 | else { |
e24b16f9 GS |
1686 | if (PL_compiling.cop_warnings != WARN_NONE && |
1687 | PL_compiling.cop_warnings != WARN_ALL) | |
1688 | sv_setsv(PL_compiling.cop_warnings, sv); | |
599cee73 | 1689 | else |
e24b16f9 | 1690 | PL_compiling.cop_warnings = newSVsv(sv) ; |
599cee73 PM |
1691 | } |
1692 | } | |
1693 | break; | |
49460fe6 NIS |
1694 | |
1695 | case '\003': /* ^C */ | |
1696 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1697 | break; | |
1698 | ||
79072805 | 1699 | case '\004': /* ^D */ |
3280af22 | 1700 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1701 | DEBUG_x(dump_all()); |
1702 | break; | |
28f23441 | 1703 | case '\005': /* ^E */ |
1704 | #ifdef VMS | |
1705 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1706 | #else | |
22fae026 TM |
1707 | #ifdef WIN32 |
1708 | SetLastError( SvIV(sv) ); | |
1709 | #else | |
f86702cc | 1710 | /* will anyone ever use this? */ |
1711 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1712 | #endif |
22fae026 | 1713 | #endif |
28f23441 | 1714 | break; |
79072805 | 1715 | case '\006': /* ^F */ |
3280af22 | 1716 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1717 | break; |
a0d0e21e | 1718 | case '\010': /* ^H */ |
3280af22 | 1719 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1720 | break; |
9d116dd7 | 1721 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1722 | if (PL_inplace) |
1723 | Safefree(PL_inplace); | |
79072805 | 1724 | if (SvOK(sv)) |
2d8e6c8d | 1725 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1726 | else |
3280af22 | 1727 | PL_inplace = Nullch; |
79072805 | 1728 | break; |
28f23441 | 1729 | case '\017': /* ^O */ |
3280af22 NIS |
1730 | if (PL_osname) |
1731 | Safefree(PL_osname); | |
28f23441 | 1732 | if (SvOK(sv)) |
2d8e6c8d | 1733 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1734 | else |
3280af22 | 1735 | PL_osname = Nullch; |
28f23441 | 1736 | break; |
79072805 | 1737 | case '\020': /* ^P */ |
3280af22 | 1738 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1739 | break; |
1740 | case '\024': /* ^T */ | |
88e89b8a | 1741 | #ifdef BIG_TIME |
6b88bc9c | 1742 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1743 | #else |
3280af22 | 1744 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1745 | #endif |
79072805 LW |
1746 | break; |
1747 | case '\027': /* ^W */ | |
599cee73 PM |
1748 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1749 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1750 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; | |
1751 | } | |
79072805 LW |
1752 | break; |
1753 | case '.': | |
3280af22 NIS |
1754 | if (PL_localizing) { |
1755 | if (PL_localizing == 1) | |
1756 | save_sptr((SV**)&PL_last_in_gv); | |
748a9306 | 1757 | } |
3280af22 NIS |
1758 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1759 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1760 | break; |
1761 | case '^': | |
3280af22 | 1762 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1763 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1764 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1765 | break; |
1766 | case '~': | |
3280af22 | 1767 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1768 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1769 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1770 | break; |
1771 | case '=': | |
3280af22 | 1772 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1773 | break; |
1774 | case '-': | |
3280af22 NIS |
1775 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1776 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1777 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1778 | break; |
1779 | case '%': | |
3280af22 | 1780 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1781 | break; |
1782 | case '|': | |
4b65379b | 1783 | { |
3280af22 | 1784 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1785 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1786 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1787 | else { | |
1788 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1789 | PerlIO *ofp = IoOFP(io); | |
1790 | if (ofp) | |
1791 | (void)PerlIO_flush(ofp); | |
1792 | IoFLAGS(io) |= IOf_FLUSH; | |
1793 | } | |
1794 | } | |
79072805 LW |
1795 | } |
1796 | break; | |
1797 | case '*': | |
463ee0b2 | 1798 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1799 | PL_multiline = (i != 0); |
79072805 LW |
1800 | break; |
1801 | case '/': | |
3280af22 NIS |
1802 | SvREFCNT_dec(PL_nrs); |
1803 | PL_nrs = newSVsv(sv); | |
1804 | SvREFCNT_dec(PL_rs); | |
1805 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1806 | break; |
1807 | case '\\': | |
3280af22 NIS |
1808 | if (PL_ors) |
1809 | Safefree(PL_ors); | |
e3c19b7b | 1810 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 | 1811 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b | 1812 | else { |
3280af22 NIS |
1813 | PL_ors = Nullch; |
1814 | PL_orslen = 0; | |
e3c19b7b | 1815 | } |
79072805 LW |
1816 | break; |
1817 | case ',': | |
3280af22 NIS |
1818 | if (PL_ofs) |
1819 | Safefree(PL_ofs); | |
1820 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1821 | break; |
1822 | case '#': | |
3280af22 NIS |
1823 | if (PL_ofmt) |
1824 | Safefree(PL_ofmt); | |
2d8e6c8d | 1825 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1826 | break; |
1827 | case '[': | |
3280af22 | 1828 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1829 | break; |
1830 | case '?': | |
ff0cee69 | 1831 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1832 | if (PL_localizing == 2) { |
1833 | PL_statusvalue = LvTARGOFF(sv); | |
1834 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1835 | } |
1836 | else | |
1837 | #endif | |
1838 | #ifdef VMSISH_STATUS | |
1839 | if (VMSISH_STATUS) | |
1840 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1841 | else | |
1842 | #endif | |
1843 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1844 | break; |
1845 | case '!': | |
78987ded | 1846 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1847 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1848 | break; |
1849 | case '<': | |
3280af22 NIS |
1850 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1851 | if (PL_delaymagic) { | |
1852 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1853 | break; /* don't do magic till later */ |
1854 | } | |
1855 | #ifdef HAS_SETRUID | |
b28d0864 | 1856 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1857 | #else |
1858 | #ifdef HAS_SETREUID | |
3280af22 | 1859 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1860 | #else |
85e6fe83 | 1861 | #ifdef HAS_SETRESUID |
b28d0864 | 1862 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1863 | #else |
b28d0864 NIS |
1864 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1865 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1866 | else { |
b28d0864 | 1867 | PL_uid = (I32)PerlProc_getuid(); |
cea2e8a9 | 1868 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1869 | } |
79072805 LW |
1870 | #endif |
1871 | #endif | |
85e6fe83 | 1872 | #endif |
3280af22 NIS |
1873 | PL_uid = (I32)PerlProc_getuid(); |
1874 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1875 | break; |
1876 | case '>': | |
3280af22 NIS |
1877 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1878 | if (PL_delaymagic) { | |
1879 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1880 | break; /* don't do magic till later */ |
1881 | } | |
1882 | #ifdef HAS_SETEUID | |
3280af22 | 1883 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1884 | #else |
1885 | #ifdef HAS_SETREUID | |
b28d0864 | 1886 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1887 | #else |
1888 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1889 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1890 | #else |
b28d0864 NIS |
1891 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1892 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1893 | else { |
b28d0864 | 1894 | PL_euid = (I32)PerlProc_geteuid(); |
cea2e8a9 | 1895 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1896 | } |
79072805 LW |
1897 | #endif |
1898 | #endif | |
85e6fe83 | 1899 | #endif |
3280af22 NIS |
1900 | PL_euid = (I32)PerlProc_geteuid(); |
1901 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1902 | break; |
1903 | case '(': | |
3280af22 NIS |
1904 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1905 | if (PL_delaymagic) { | |
1906 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1907 | break; /* don't do magic till later */ |
1908 | } | |
1909 | #ifdef HAS_SETRGID | |
b28d0864 | 1910 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1911 | #else |
1912 | #ifdef HAS_SETREGID | |
3280af22 | 1913 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1914 | #else |
1915 | #ifdef HAS_SETRESGID | |
b28d0864 | 1916 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1917 | #else |
b28d0864 NIS |
1918 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1919 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1920 | else { |
b28d0864 | 1921 | PL_gid = (I32)PerlProc_getgid(); |
cea2e8a9 | 1922 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1923 | } |
79072805 LW |
1924 | #endif |
1925 | #endif | |
85e6fe83 | 1926 | #endif |
3280af22 NIS |
1927 | PL_gid = (I32)PerlProc_getgid(); |
1928 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1929 | break; |
1930 | case ')': | |
5cd24f17 | 1931 | #ifdef HAS_SETGROUPS |
1932 | { | |
2d8e6c8d | 1933 | char *p = SvPV(sv, len); |
5cd24f17 | 1934 | Groups_t gary[NGROUPS]; |
1935 | ||
5cd24f17 | 1936 | while (isSPACE(*p)) |
1937 | ++p; | |
097ee67d | 1938 | PL_egid = I_V(atol(p)); |
5cd24f17 | 1939 | for (i = 0; i < NGROUPS; ++i) { |
1940 | while (*p && !isSPACE(*p)) | |
1941 | ++p; | |
1942 | while (isSPACE(*p)) | |
1943 | ++p; | |
1944 | if (!*p) | |
1945 | break; | |
097ee67d | 1946 | gary[i] = I_V(atol(p)); |
5cd24f17 | 1947 | } |
8cc95fdb | 1948 | if (i) |
1949 | (void)setgroups(i, gary); | |
5cd24f17 | 1950 | } |
1951 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1952 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1953 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1954 | if (PL_delaymagic) { |
1955 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1956 | break; /* don't do magic till later */ |
1957 | } | |
1958 | #ifdef HAS_SETEGID | |
3280af22 | 1959 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1960 | #else |
1961 | #ifdef HAS_SETREGID | |
b28d0864 | 1962 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1963 | #else |
1964 | #ifdef HAS_SETRESGID | |
b28d0864 | 1965 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1966 | #else |
b28d0864 NIS |
1967 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1968 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1969 | else { |
b28d0864 | 1970 | PL_egid = (I32)PerlProc_getegid(); |
cea2e8a9 | 1971 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 1972 | } |
79072805 LW |
1973 | #endif |
1974 | #endif | |
85e6fe83 | 1975 | #endif |
3280af22 NIS |
1976 | PL_egid = (I32)PerlProc_getegid(); |
1977 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1978 | break; |
1979 | case ':': | |
2d8e6c8d | 1980 | PL_chopset = SvPV_force(sv,len); |
79072805 LW |
1981 | break; |
1982 | case '0': | |
3280af22 NIS |
1983 | if (!PL_origalen) { |
1984 | s = PL_origargv[0]; | |
79072805 LW |
1985 | s += strlen(s); |
1986 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1987 | for (i = 1; i < PL_origargc; i++) { |
1988 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1989 | #ifdef OS2 |
6b88bc9c | 1990 | || PL_origargv[i] == s + 2 |
fb73857a | 1991 | #endif |
1992 | ) | |
379c4362 GS |
1993 | { |
1994 | ++s; | |
1995 | s += strlen(s); /* this one is ok too */ | |
1996 | } | |
fb73857a | 1997 | else |
1998 | break; | |
79072805 | 1999 | } |
bbce6d69 | 2000 | /* can grab env area too? */ |
3280af22 | 2001 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2002 | #ifdef OS2 |
6b88bc9c | 2003 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 2004 | #endif |
2005 | )) { | |
66b1d557 | 2006 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2007 | /* force copy of environment */ |
3280af22 | 2008 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2009 | if (PL_origenviron[i] == s + 1) { |
2010 | ++s; | |
2011 | s += strlen(s); | |
2012 | } | |
fb73857a | 2013 | else |
2014 | break; | |
79072805 | 2015 | } |
3280af22 | 2016 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2017 | } |
a0d0e21e | 2018 | s = SvPV_force(sv,len); |
8990e307 | 2019 | i = len; |
3280af22 NIS |
2020 | if (i >= PL_origalen) { |
2021 | i = PL_origalen; | |
fb73857a | 2022 | /* don't allow system to limit $0 seen by script */ |
2023 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2024 | Copy(s, PL_origargv[0], i, char); |
2025 | s = PL_origargv[0]+i; | |
fb73857a | 2026 | *s = '\0'; |
79072805 LW |
2027 | } |
2028 | else { | |
3280af22 NIS |
2029 | Copy(s, PL_origargv[0], i, char); |
2030 | s = PL_origargv[0]+i; | |
79072805 | 2031 | *s++ = '\0'; |
3280af22 | 2032 | while (++i < PL_origalen) |
8990e307 | 2033 | *s++ = ' '; |
3280af22 NIS |
2034 | s = PL_origargv[0]+i; |
2035 | for (i = 1; i < PL_origargc; i++) | |
2036 | PL_origargv[i] = Nullch; | |
79072805 LW |
2037 | } |
2038 | break; | |
a863c7d1 MB |
2039 | #ifdef USE_THREADS |
2040 | case '@': | |
38a03e6e | 2041 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2042 | break; |
2043 | #endif /* USE_THREADS */ | |
79072805 LW |
2044 | } |
2045 | return 0; | |
2046 | } | |
2047 | ||
f93b4edd MB |
2048 | #ifdef USE_THREADS |
2049 | int | |
864dbfa3 | 2050 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd MB |
2051 | { |
2052 | dTHR; | |
8b73bbec | 2053 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 | 2054 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd | 2055 | if (MgOWNER(mg)) |
cea2e8a9 | 2056 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2057 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2058 | COND_DESTROY(MgCONDP(mg)); | |
2059 | return 0; | |
2060 | } | |
2061 | #endif /* USE_THREADS */ | |
2062 | ||
79072805 | 2063 | I32 |
864dbfa3 | 2064 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2065 | { |
2066 | register char **sigv; | |
2067 | ||
22c35a8c | 2068 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2069 | if (strEQ(sig,*sigv)) |
22c35a8c | 2070 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2071 | #ifdef SIGCLD |
2072 | if (strEQ(sig,"CHLD")) | |
2073 | return SIGCLD; | |
2074 | #endif | |
2075 | #ifdef SIGCHLD | |
2076 | if (strEQ(sig,"CLD")) | |
2077 | return SIGCHLD; | |
2078 | #endif | |
2079 | return 0; | |
2080 | } | |
2081 | ||
84902520 TB |
2082 | static SV* sig_sv; |
2083 | ||
76e3520e | 2084 | STATIC void |
cea2e8a9 | 2085 | S_unwind_handler_stack(pTHX_ void *p) |
84902520 | 2086 | { |
ff26ac79 | 2087 | dTHR; |
84902520 TB |
2088 | U32 flags = *(U32*)p; |
2089 | ||
2090 | if (flags & 1) | |
3280af22 | 2091 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 TB |
2092 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2093 | if (flags & 64) | |
2094 | SvREFCNT_dec(sig_sv); | |
2095 | } | |
2096 | ||
ecfc5424 | 2097 | Signal_t |
cea2e8a9 | 2098 | Perl_sighandler(int sig) |
79072805 | 2099 | { |
cea2e8a9 | 2100 | dTHX; |
79072805 | 2101 | dSP; |
00d579c5 | 2102 | GV *gv = Nullgv; |
a0d0e21e | 2103 | HV *st; |
3280af22 | 2104 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2105 | CV *cv = Nullcv; |
533c011a | 2106 | OP *myop = PL_op; |
84902520 | 2107 | U32 flags = 0; |
3280af22 NIS |
2108 | I32 o_save_i = PL_savestack_ix, type; |
2109 | XPV *tXpv = PL_Xpv; | |
84902520 | 2110 | |
3280af22 | 2111 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2112 | flags |= 1; |
3280af22 | 2113 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2114 | flags |= 4; |
3280af22 | 2115 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2116 | flags |= 8; |
3280af22 | 2117 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2118 | flags |= 16; |
2119 | ||
22c35a8c | 2120 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2121 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2122 | PL_sig_name[sig]); |
ff0cee69 | 2123 | |
84902520 TB |
2124 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2125 | infinity, so we fix 4 (in fact 5): */ | |
2126 | if (flags & 1) { | |
3280af22 NIS |
2127 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2128 | o_save_i = PL_savestack_ix; | |
cea2e8a9 | 2129 | SAVEDESTRUCTOR(S_unwind_handler_stack, (void*)&flags); |
84902520 TB |
2130 | } |
2131 | if (flags & 4) | |
3280af22 | 2132 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2133 | if (flags & 8) { |
3280af22 NIS |
2134 | PL_retstack_ix++; |
2135 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2136 | } |
2137 | if (flags & 16) | |
3280af22 | 2138 | PL_scopestack_ix += 1; |
84902520 | 2139 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2140 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2141 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2142 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2143 | |
a0d0e21e | 2144 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2145 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2146 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2147 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2148 | : ((cv && CvGV(cv)) |
2149 | ? GvENAME(CvGV(cv)) | |
2150 | : "__ANON__"))); | |
2151 | goto cleanup; | |
79072805 LW |
2152 | } |
2153 | ||
22c35a8c GS |
2154 | if(PL_psig_name[sig]) { |
2155 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2156 | flags |= 64; |
2157 | sig_sv = sv; | |
2158 | } else { | |
ff0cee69 | 2159 | sv = sv_newmortal(); |
22c35a8c | 2160 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2161 | } |
e336de0d | 2162 | |
e788e7d3 | 2163 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2164 | PUSHMARK(SP); |
79072805 | 2165 | PUSHs(sv); |
79072805 | 2166 | PUTBACK; |
a0d0e21e | 2167 | |
864dbfa3 | 2168 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2169 | |
d3acc0f7 | 2170 | POPSTACK; |
00d579c5 | 2171 | cleanup: |
84902520 | 2172 | if (flags & 1) |
3280af22 | 2173 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2174 | if (flags & 4) |
3280af22 | 2175 | PL_markstack_ptr--; |
84902520 | 2176 | if (flags & 8) |
3280af22 | 2177 | PL_retstack_ix--; |
84902520 | 2178 | if (flags & 16) |
3280af22 | 2179 | PL_scopestack_ix -= 1; |
84902520 TB |
2180 | if (flags & 64) |
2181 | SvREFCNT_dec(sv); | |
533c011a | 2182 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2183 | |
3280af22 NIS |
2184 | PL_Sv = tSv; /* Restore global temporaries. */ |
2185 | PL_Xpv = tXpv; | |
79072805 LW |
2186 | return; |
2187 | } | |
4e35701f NIS |
2188 | |
2189 |