Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
3818b22b | 3 | * Copyright (c) 1991-2000, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
864dbfa3 | 16 | #define PERL_IN_MG_C |
79072805 LW |
17 | #include "perl.h" |
18 | ||
e6d9441c | 19 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
20 | #ifdef I_UNISTD |
21 | # include <unistd.h> | |
22 | #endif | |
a0d0e21e | 23 | |
5cd24f17 | 24 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
25 | # ifndef NGROUPS |
26 | # define NGROUPS 32 | |
27 | # endif | |
28 | #endif | |
29 | ||
51371543 GS |
30 | static void restore_magic(pTHXo_ void *p); |
31 | static void unwind_handler_stack(pTHXo_ void *p); | |
32 | ||
c07a80fd | 33 | /* |
34 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
35 | */ | |
36 | ||
37 | struct magic_state { | |
38 | SV* mgs_sv; | |
39 | U32 mgs_flags; | |
455ece5e | 40 | I32 mgs_ss_ix; |
c07a80fd | 41 | }; |
455ece5e | 42 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
43 | |
44 | STATIC void | |
cea2e8a9 | 45 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 46 | { |
46124e9e | 47 | dTHR; |
455ece5e | 48 | MGS* mgs; |
c07a80fd | 49 | assert(SvMAGICAL(sv)); |
50 | ||
c76ac1ee | 51 | SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix); |
455ece5e AD |
52 | |
53 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 54 | mgs->mgs_sv = sv; |
55 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 56 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 57 | |
58 | SvMAGICAL_off(sv); | |
59 | SvREADONLY_off(sv); | |
60 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 61 | } |
62 | ||
954c1994 GS |
63 | /* |
64 | =for apidoc mg_magical | |
65 | ||
66 | Turns on the magical status of an SV. See C<sv_magic>. | |
67 | ||
68 | =cut | |
69 | */ | |
70 | ||
8990e307 | 71 | void |
864dbfa3 | 72 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
73 | { |
74 | MAGIC* mg; | |
75 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
76 | MGVTBL* vtbl = mg->mg_virtual; | |
77 | if (vtbl) { | |
2b260de0 | 78 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
79 | SvGMAGICAL_on(sv); |
80 | if (vtbl->svt_set) | |
81 | SvSMAGICAL_on(sv); | |
2b260de0 | 82 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
83 | SvRMAGICAL_on(sv); |
84 | } | |
85 | } | |
86 | } | |
87 | ||
954c1994 GS |
88 | /* |
89 | =for apidoc mg_get | |
90 | ||
91 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
92 | ||
93 | =cut | |
94 | */ | |
95 | ||
79072805 | 96 | int |
864dbfa3 | 97 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 98 | { |
46124e9e | 99 | dTHR; |
455ece5e | 100 | I32 mgs_ix; |
79072805 | 101 | MAGIC* mg; |
c6496cc7 | 102 | MAGIC** mgp; |
760ac839 | 103 | int mgp_valid = 0; |
463ee0b2 | 104 | |
455ece5e AD |
105 | mgs_ix = SSNEW(sizeof(MGS)); |
106 | save_magic(mgs_ix, sv); | |
463ee0b2 | 107 | |
c6496cc7 | 108 | mgp = &SvMAGIC(sv); |
109 | while ((mg = *mgp) != 0) { | |
79072805 | 110 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 | 111 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 112 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 | 113 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
114 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
115 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 116 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 117 | } |
c6496cc7 | 118 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 119 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 120 | mgp = &mg->mg_moremagic; |
760ac839 LW |
121 | mgp_valid = 1; |
122 | } | |
123 | else | |
124 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 125 | } |
463ee0b2 | 126 | |
51371543 | 127 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
128 | return 0; |
129 | } | |
130 | ||
954c1994 GS |
131 | /* |
132 | =for apidoc mg_set | |
133 | ||
134 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
135 | ||
136 | =cut | |
137 | */ | |
138 | ||
79072805 | 139 | int |
864dbfa3 | 140 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 141 | { |
46124e9e | 142 | dTHR; |
455ece5e | 143 | I32 mgs_ix; |
79072805 | 144 | MAGIC* mg; |
463ee0b2 LW |
145 | MAGIC* nextmg; |
146 | ||
455ece5e AD |
147 | mgs_ix = SSNEW(sizeof(MGS)); |
148 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
149 | |
150 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 151 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 152 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
153 | if (mg->mg_flags & MGf_GSKIP) { |
154 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 155 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 156 | } |
2b260de0 | 157 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 158 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 159 | } |
463ee0b2 | 160 | |
51371543 | 161 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
162 | return 0; |
163 | } | |
164 | ||
954c1994 GS |
165 | /* |
166 | =for apidoc mg_length | |
167 | ||
168 | Report on the SV's length. See C<sv_magic>. | |
169 | ||
170 | =cut | |
171 | */ | |
172 | ||
79072805 | 173 | U32 |
864dbfa3 | 174 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
175 | { |
176 | MAGIC* mg; | |
748a9306 | 177 | char *junk; |
463ee0b2 | 178 | STRLEN len; |
463ee0b2 | 179 | |
79072805 LW |
180 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
181 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 182 | if (vtbl && vtbl->svt_len) { |
455ece5e | 183 | I32 mgs_ix; |
48e43a1c | 184 | |
455ece5e AD |
185 | mgs_ix = SSNEW(sizeof(MGS)); |
186 | save_magic(mgs_ix, sv); | |
a0d0e21e | 187 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 188 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 189 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 LW |
190 | return len; |
191 | } | |
192 | } | |
193 | ||
748a9306 | 194 | junk = SvPV(sv, len); |
463ee0b2 | 195 | return len; |
79072805 LW |
196 | } |
197 | ||
93965878 | 198 | I32 |
864dbfa3 | 199 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
200 | { |
201 | MAGIC* mg; | |
202 | I32 len; | |
203 | ||
204 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
205 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 206 | if (vtbl && vtbl->svt_len) { |
455ece5e AD |
207 | I32 mgs_ix; |
208 | ||
209 | mgs_ix = SSNEW(sizeof(MGS)); | |
210 | save_magic(mgs_ix, sv); | |
93965878 | 211 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 212 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 | 213 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 NIS |
214 | return len; |
215 | } | |
216 | } | |
217 | ||
218 | switch(SvTYPE(sv)) { | |
219 | case SVt_PVAV: | |
220 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
221 | return len; | |
222 | case SVt_PVHV: | |
223 | /* FIXME */ | |
224 | default: | |
cea2e8a9 | 225 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
226 | break; |
227 | } | |
228 | return 0; | |
229 | } | |
230 | ||
954c1994 GS |
231 | /* |
232 | =for apidoc mg_clear | |
233 | ||
234 | Clear something magical that the SV represents. See C<sv_magic>. | |
235 | ||
236 | =cut | |
237 | */ | |
238 | ||
79072805 | 239 | int |
864dbfa3 | 240 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 241 | { |
455ece5e | 242 | I32 mgs_ix; |
79072805 | 243 | MAGIC* mg; |
463ee0b2 | 244 | |
455ece5e AD |
245 | mgs_ix = SSNEW(sizeof(MGS)); |
246 | save_magic(mgs_ix, sv); | |
463ee0b2 | 247 | |
79072805 LW |
248 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
249 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
250 | /* omit GSKIP -- never set here */ |
251 | ||
2b260de0 | 252 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 253 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 254 | } |
463ee0b2 | 255 | |
51371543 | 256 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
257 | return 0; |
258 | } | |
259 | ||
954c1994 GS |
260 | /* |
261 | =for apidoc mg_find | |
262 | ||
263 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
264 | ||
265 | =cut | |
266 | */ | |
267 | ||
93a17b20 | 268 | MAGIC* |
864dbfa3 | 269 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
270 | { |
271 | MAGIC* mg; | |
93a17b20 LW |
272 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
273 | if (mg->mg_type == type) | |
274 | return mg; | |
275 | } | |
276 | return 0; | |
277 | } | |
278 | ||
954c1994 GS |
279 | /* |
280 | =for apidoc mg_copy | |
281 | ||
282 | Copies the magic from one SV to another. See C<sv_magic>. | |
283 | ||
284 | =cut | |
285 | */ | |
286 | ||
79072805 | 287 | int |
864dbfa3 | 288 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 289 | { |
463ee0b2 | 290 | int count = 0; |
79072805 | 291 | MAGIC* mg; |
463ee0b2 LW |
292 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
293 | if (isUPPER(mg->mg_type)) { | |
33c27489 GS |
294 | sv_magic(nsv, |
295 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj, | |
296 | toLOWER(mg->mg_type), key, klen); | |
463ee0b2 | 297 | count++; |
79072805 | 298 | } |
79072805 | 299 | } |
463ee0b2 | 300 | return count; |
79072805 LW |
301 | } |
302 | ||
954c1994 GS |
303 | /* |
304 | =for apidoc mg_free | |
305 | ||
306 | Free any magic storage used by the SV. See C<sv_magic>. | |
307 | ||
308 | =cut | |
309 | */ | |
310 | ||
79072805 | 311 | int |
864dbfa3 | 312 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
313 | { |
314 | MAGIC* mg; | |
315 | MAGIC* moremagic; | |
316 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
317 | MGVTBL* vtbl = mg->mg_virtual; | |
318 | moremagic = mg->mg_moremagic; | |
2b260de0 | 319 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 320 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
93a17b20 | 321 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 322 | if (mg->mg_len >= 0) |
88e89b8a | 323 | Safefree(mg->mg_ptr); |
565764a8 | 324 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 325 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 326 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 327 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
328 | Safefree(mg); |
329 | } | |
330 | SvMAGIC(sv) = 0; | |
331 | return 0; | |
332 | } | |
333 | ||
334 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
335 | #include <signal.h> | |
336 | #endif | |
337 | ||
942e002e | 338 | U32 |
864dbfa3 | 339 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
340 | { |
341 | dTHR; | |
6cef1e77 | 342 | register REGEXP *rx; |
6cef1e77 | 343 | |
8f580fb8 IZ |
344 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
345 | if (mg->mg_obj) /* @+ */ | |
346 | return rx->nparens; | |
347 | else /* @- */ | |
348 | return rx->lastparen; | |
349 | } | |
350 | ||
942e002e | 351 | return (U32)-1; |
6cef1e77 IZ |
352 | } |
353 | ||
354 | int | |
864dbfa3 | 355 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
356 | { |
357 | dTHR; | |
358 | register I32 paren; | |
cf93c79d | 359 | register I32 s; |
6cef1e77 IZ |
360 | register I32 i; |
361 | register REGEXP *rx; | |
cf93c79d | 362 | I32 t; |
6cef1e77 IZ |
363 | |
364 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
365 | paren = mg->mg_len; | |
366 | if (paren < 0) | |
367 | return 0; | |
368 | if (paren <= rx->nparens && | |
cf93c79d IZ |
369 | (s = rx->startp[paren]) != -1 && |
370 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
371 | { |
372 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 373 | i = t; |
6cef1e77 | 374 | else /* @- */ |
cf93c79d | 375 | i = s; |
6cef1e77 IZ |
376 | sv_setiv(sv,i); |
377 | } | |
378 | } | |
379 | return 0; | |
380 | } | |
381 | ||
93a17b20 | 382 | U32 |
864dbfa3 | 383 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 384 | { |
a863c7d1 | 385 | dTHR; |
93a17b20 | 386 | register I32 paren; |
93a17b20 | 387 | register I32 i; |
d9f97599 | 388 | register REGEXP *rx; |
93a17b20 LW |
389 | |
390 | switch (*mg->mg_ptr) { | |
391 | case '1': case '2': case '3': case '4': | |
392 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 393 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
394 | I32 s1, t1; |
395 | ||
93a17b20 LW |
396 | paren = atoi(mg->mg_ptr); |
397 | getparen: | |
d9f97599 | 398 | if (paren <= rx->nparens && |
cf93c79d IZ |
399 | (s1 = rx->startp[paren]) != -1 && |
400 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 401 | { |
cf93c79d | 402 | i = t1 - s1; |
71be2cbc | 403 | if (i >= 0) |
93a17b20 | 404 | return i; |
93a17b20 | 405 | } |
93a17b20 | 406 | } |
748a9306 | 407 | return 0; |
93a17b20 | 408 | case '+': |
3280af22 | 409 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 410 | paren = rx->lastparen; |
13f57bf8 CS |
411 | if (paren) |
412 | goto getparen; | |
93a17b20 | 413 | } |
748a9306 | 414 | return 0; |
93a17b20 | 415 | case '`': |
3280af22 | 416 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
417 | if (rx->startp[0] != -1) { |
418 | i = rx->startp[0]; | |
71be2cbc | 419 | if (i >= 0) |
93a17b20 | 420 | return i; |
93a17b20 | 421 | } |
93a17b20 | 422 | } |
748a9306 | 423 | return 0; |
93a17b20 | 424 | case '\'': |
3280af22 | 425 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
426 | if (rx->endp[0] != -1) { |
427 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 428 | if (i >= 0) |
5cd24f17 | 429 | return i; |
93a17b20 | 430 | } |
93a17b20 | 431 | } |
748a9306 | 432 | return 0; |
93a17b20 | 433 | case ',': |
3280af22 | 434 | return (STRLEN)PL_ofslen; |
93a17b20 | 435 | case '\\': |
3280af22 | 436 | return (STRLEN)PL_orslen; |
93a17b20 LW |
437 | } |
438 | magic_get(sv,mg); | |
2d8e6c8d GS |
439 | if (!SvPOK(sv) && SvNIOK(sv)) { |
440 | STRLEN n_a; | |
441 | sv_2pv(sv, &n_a); | |
442 | } | |
93a17b20 LW |
443 | if (SvPOK(sv)) |
444 | return SvCUR(sv); | |
445 | return 0; | |
446 | } | |
447 | ||
79072805 | 448 | int |
864dbfa3 | 449 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 450 | { |
a863c7d1 | 451 | dTHR; |
79072805 LW |
452 | register I32 paren; |
453 | register char *s; | |
454 | register I32 i; | |
d9f97599 | 455 | register REGEXP *rx; |
79072805 LW |
456 | |
457 | switch (*mg->mg_ptr) { | |
748a9306 | 458 | case '\001': /* ^A */ |
3280af22 | 459 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 460 | break; |
49460fe6 NIS |
461 | case '\003': /* ^C */ |
462 | sv_setiv(sv, (IV)PL_minus_c); | |
463 | break; | |
464 | ||
79072805 | 465 | case '\004': /* ^D */ |
3280af22 | 466 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
d056ab3f GS |
467 | #if defined(YYDEBUG) && defined(DEBUGGING) |
468 | PL_yydebug = (PL_debug & 1); | |
469 | #endif | |
79072805 | 470 | break; |
28f23441 | 471 | case '\005': /* ^E */ |
cd39f2b6 JH |
472 | #ifdef MACOS_TRADITIONAL |
473 | { | |
474 | char msg[256]; | |
475 | ||
476 | sv_setnv(sv,(double)gLastMacOSErr); | |
477 | sv_setpv(sv, gLastMacOSErr ? GetSysErrText(gLastMacOSErr, msg) : ""); | |
478 | } | |
479 | #else | |
28f23441 | 480 | #ifdef VMS |
481 | { | |
482 | # include <descrip.h> | |
483 | # include <starlet.h> | |
484 | char msg[255]; | |
485 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 486 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 487 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
488 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
489 | else | |
490 | sv_setpv(sv,""); | |
491 | } | |
492 | #else | |
88e89b8a | 493 | #ifdef OS2 |
fb73857a | 494 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 495 | sv_setnv(sv, (NV)errno); |
fb73857a | 496 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
497 | } else { | |
017f25f1 IZ |
498 | if (errno != errno_isOS2) { |
499 | int tmp = _syserrno(); | |
500 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
501 | Perl_rc = tmp; | |
502 | } | |
65202027 | 503 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 504 | sv_setpv(sv, os2error(Perl_rc)); |
505 | } | |
88e89b8a | 506 | #else |
22fae026 TM |
507 | #ifdef WIN32 |
508 | { | |
509 | DWORD dwErr = GetLastError(); | |
65202027 | 510 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 511 | if (dwErr) |
76e3520e | 512 | { |
0cb96387 | 513 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 514 | } |
22fae026 TM |
515 | else |
516 | sv_setpv(sv, ""); | |
517 | SetLastError(dwErr); | |
518 | } | |
519 | #else | |
65202027 | 520 | sv_setnv(sv, (NV)errno); |
28f23441 | 521 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
522 | #endif | |
88e89b8a | 523 | #endif |
22fae026 | 524 | #endif |
cd39f2b6 | 525 | #endif |
946ec16e | 526 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 527 | break; |
79072805 | 528 | case '\006': /* ^F */ |
3280af22 | 529 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 530 | break; |
a0d0e21e | 531 | case '\010': /* ^H */ |
3280af22 | 532 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 533 | break; |
9d116dd7 | 534 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
535 | if (PL_inplace) |
536 | sv_setpv(sv, PL_inplace); | |
79072805 | 537 | else |
3280af22 | 538 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 539 | break; |
28f23441 | 540 | case '\017': /* ^O */ |
3280af22 | 541 | sv_setpv(sv, PL_osname); |
28f23441 | 542 | break; |
79072805 | 543 | case '\020': /* ^P */ |
3280af22 | 544 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 545 | break; |
fb73857a | 546 | case '\023': /* ^S */ |
d58bf5aa MB |
547 | { |
548 | dTHR; | |
3280af22 | 549 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 550 | (void)SvOK_off(sv); |
3280af22 | 551 | else if (PL_in_eval) |
d58bf5aa MB |
552 | sv_setiv(sv, 1); |
553 | else | |
554 | sv_setiv(sv, 0); | |
555 | } | |
fb73857a | 556 | break; |
79072805 | 557 | case '\024': /* ^T */ |
88e89b8a | 558 | #ifdef BIG_TIME |
6b88bc9c | 559 | sv_setnv(sv, PL_basetime); |
88e89b8a | 560 | #else |
3280af22 | 561 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 562 | #endif |
79072805 | 563 | break; |
46487f74 | 564 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
565 | if (*(mg->mg_ptr+1) == '\0') |
566 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 567 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
568 | if (PL_compiling.cop_warnings == pWARN_NONE || |
569 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
570 | { |
571 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
572 | } | |
d3a7d8c7 | 573 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 JH |
574 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
575 | } | |
576 | else { | |
577 | sv_setsv(sv, PL_compiling.cop_warnings); | |
578 | } | |
d3a7d8c7 | 579 | SvPOK_only(sv); |
4438c4b7 | 580 | } |
46487f74 GS |
581 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
582 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
583 | break; |
584 | case '1': case '2': case '3': case '4': | |
585 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 586 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
587 | I32 s1, t1; |
588 | ||
a863c7d1 MB |
589 | /* |
590 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
591 | * XXX Does the new way break anything? | |
592 | */ | |
593 | paren = atoi(mg->mg_ptr); | |
79072805 | 594 | getparen: |
d9f97599 | 595 | if (paren <= rx->nparens && |
cf93c79d IZ |
596 | (s1 = rx->startp[paren]) != -1 && |
597 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 598 | { |
cf93c79d IZ |
599 | i = t1 - s1; |
600 | s = rx->subbeg + s1; | |
13f57bf8 | 601 | getrx: |
748a9306 | 602 | if (i >= 0) { |
13f57bf8 | 603 | bool was_tainted; |
3280af22 NIS |
604 | if (PL_tainting) { |
605 | was_tainted = PL_tainted; | |
606 | PL_tainted = FALSE; | |
13f57bf8 | 607 | } |
cf93c79d | 608 | sv_setpvn(sv, s, i); |
7e2040f0 GS |
609 | if ((PL_curpm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) |
610 | SvUTF8_on(sv); | |
611 | else | |
612 | SvUTF8_off(sv); | |
3280af22 NIS |
613 | if (PL_tainting) |
614 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
615 | break; |
616 | } | |
79072805 | 617 | } |
79072805 | 618 | } |
3280af22 | 619 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
620 | break; |
621 | case '+': | |
3280af22 | 622 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 623 | paren = rx->lastparen; |
a0d0e21e LW |
624 | if (paren) |
625 | goto getparen; | |
79072805 | 626 | } |
3280af22 | 627 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
628 | break; |
629 | case '`': | |
3280af22 | 630 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
631 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
632 | i = rx->startp[0]; | |
13f57bf8 | 633 | goto getrx; |
79072805 | 634 | } |
79072805 | 635 | } |
3280af22 | 636 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
637 | break; |
638 | case '\'': | |
3280af22 | 639 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
640 | if (rx->subbeg && rx->endp[0] != -1) { |
641 | s = rx->subbeg + rx->endp[0]; | |
642 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 643 | goto getrx; |
79072805 | 644 | } |
79072805 | 645 | } |
3280af22 | 646 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
647 | break; |
648 | case '.': | |
649 | #ifndef lint | |
3280af22 NIS |
650 | if (GvIO(PL_last_in_gv)) { |
651 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
652 | } |
653 | #endif | |
654 | break; | |
655 | case '?': | |
809a5acc | 656 | { |
809a5acc | 657 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 658 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
659 | LvTARGOFF(sv) = PL_statusvalue; |
660 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 661 | #endif |
809a5acc | 662 | } |
79072805 LW |
663 | break; |
664 | case '^': | |
3280af22 | 665 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
666 | if (s) |
667 | sv_setpv(sv,s); | |
668 | else { | |
3280af22 | 669 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
670 | sv_catpv(sv,"_TOP"); |
671 | } | |
672 | break; | |
673 | case '~': | |
3280af22 | 674 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 675 | if (!s) |
3280af22 | 676 | s = GvENAME(PL_defoutgv); |
79072805 LW |
677 | sv_setpv(sv,s); |
678 | break; | |
679 | #ifndef lint | |
680 | case '=': | |
3280af22 | 681 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
682 | break; |
683 | case '-': | |
3280af22 | 684 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
685 | break; |
686 | case '%': | |
3280af22 | 687 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
688 | break; |
689 | #endif | |
690 | case ':': | |
691 | break; | |
692 | case '/': | |
693 | break; | |
694 | case '[': | |
3280af22 | 695 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
696 | break; |
697 | case '|': | |
3280af22 | 698 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
699 | break; |
700 | case ',': | |
3280af22 | 701 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
702 | break; |
703 | case '\\': | |
3280af22 | 704 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
705 | break; |
706 | case '#': | |
3280af22 | 707 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
708 | break; |
709 | case '!': | |
a5f75d66 | 710 | #ifdef VMS |
65202027 | 711 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 712 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 713 | #else |
88e89b8a | 714 | { |
715 | int saveerrno = errno; | |
65202027 | 716 | sv_setnv(sv, (NV)errno); |
88e89b8a | 717 | #ifdef OS2 |
ed344e4f IZ |
718 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
719 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 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 | 735 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 736 | #ifdef HAS_GETGROUPS |
785fb66b | 737 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 738 | #endif |
79072805 LW |
739 | goto add_groups; |
740 | case ')': | |
3280af22 | 741 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 742 | #ifdef HAS_GETGROUPS |
785fb66b | 743 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 744 | #endif |
79072805 | 745 | add_groups: |
79072805 | 746 | #ifdef HAS_GETGROUPS |
79072805 | 747 | { |
a0d0e21e | 748 | Groups_t gary[NGROUPS]; |
79072805 | 749 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 750 | while (--i >= 0) |
785fb66b | 751 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
752 | } |
753 | #endif | |
155aba94 | 754 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
755 | break; |
756 | case '*': | |
757 | break; | |
cd39f2b6 | 758 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
759 | case '0': |
760 | break; | |
cd39f2b6 | 761 | #endif |
a863c7d1 MB |
762 | #ifdef USE_THREADS |
763 | case '@': | |
38a03e6e | 764 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
765 | break; |
766 | #endif /* USE_THREADS */ | |
79072805 | 767 | } |
a0d0e21e | 768 | return 0; |
79072805 LW |
769 | } |
770 | ||
771 | int | |
864dbfa3 | 772 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
773 | { |
774 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
775 | ||
776 | if (uf && uf->uf_val) | |
777 | (*uf->uf_val)(uf->uf_index, sv); | |
778 | return 0; | |
779 | } | |
780 | ||
781 | int | |
864dbfa3 | 782 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
783 | { |
784 | register char *s; | |
88e89b8a | 785 | char *ptr; |
5aabfad6 | 786 | STRLEN len, klen; |
a0d0e21e | 787 | I32 i; |
1e422769 | 788 | |
a0d0e21e | 789 | s = SvPV(sv,len); |
5aabfad6 | 790 | ptr = MgPV(mg,klen); |
88e89b8a | 791 | my_setenv(ptr, s); |
1e422769 | 792 | |
a0d0e21e LW |
793 | #ifdef DYNAMIC_ENV_FETCH |
794 | /* We just undefd an environment var. Is a replacement */ | |
795 | /* waiting in the wings? */ | |
796 | if (!len) { | |
5aabfad6 | 797 | SV **valp; |
6b88bc9c | 798 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 799 | s = SvPV(*valp, len); |
a0d0e21e LW |
800 | } |
801 | #endif | |
1e422769 | 802 | |
39e571d4 | 803 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
804 | /* And you'll never guess what the dog had */ |
805 | /* in its mouth... */ | |
3280af22 | 806 | if (PL_tainting) { |
1e422769 | 807 | MgTAINTEDDIR_off(mg); |
808 | #ifdef VMS | |
5aabfad6 | 809 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 810 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
811 | struct stat sbuf; | |
812 | int i = 0, j = 0; | |
813 | ||
814 | do { /* DCL$PATH may be a search list */ | |
815 | while (1) { /* as may dev portion of any element */ | |
816 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
817 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
818 | cando_by_name(S_IWUSR,0,elt) ) { | |
819 | MgTAINTEDDIR_on(mg); | |
820 | return 0; | |
821 | } | |
822 | } | |
823 | if ((cp = strchr(elt, ':')) != Nullch) | |
824 | *cp = '\0'; | |
825 | if (my_trnlnm(elt, eltbuf, j++)) | |
826 | elt = eltbuf; | |
827 | else | |
828 | break; | |
829 | } | |
830 | j = 0; | |
831 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
832 | } | |
833 | #endif /* VMS */ | |
5aabfad6 | 834 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 835 | char *strend = s + len; |
463ee0b2 LW |
836 | |
837 | while (s < strend) { | |
96827780 | 838 | char tmpbuf[256]; |
1e422769 | 839 | struct stat st; |
96827780 | 840 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 841 | s, strend, ':', &i); |
463ee0b2 | 842 | s++; |
96827780 MB |
843 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
844 | || *tmpbuf != '/' | |
c6ed36e1 | 845 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 846 | MgTAINTEDDIR_on(mg); |
1e422769 | 847 | return 0; |
848 | } | |
463ee0b2 | 849 | } |
79072805 LW |
850 | } |
851 | } | |
39e571d4 | 852 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 853 | |
79072805 LW |
854 | return 0; |
855 | } | |
856 | ||
857 | int | |
864dbfa3 | 858 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 859 | { |
2d8e6c8d GS |
860 | STRLEN n_a; |
861 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
862 | return 0; |
863 | } | |
864 | ||
88e89b8a | 865 | int |
864dbfa3 | 866 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 867 | { |
868 | #if defined(VMS) | |
cea2e8a9 | 869 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 870 | #else |
d58bf5aa | 871 | dTHR; |
3280af22 | 872 | if (PL_localizing) { |
fb73857a | 873 | HE* entry; |
2d8e6c8d | 874 | STRLEN n_a; |
fb73857a | 875 | magic_clear_all_env(sv,mg); |
876 | hv_iterinit((HV*)sv); | |
155aba94 | 877 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 878 | I32 keylen; |
879 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 880 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 881 | } |
882 | } | |
883 | #endif | |
884 | return 0; | |
885 | } | |
886 | ||
887 | int | |
864dbfa3 | 888 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 889 | { |
3e3baf6d | 890 | #if defined(VMS) |
cea2e8a9 | 891 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 892 | #else |
7766f137 GS |
893 | # ifdef PERL_IMPLICIT_SYS |
894 | PerlEnv_clearenv(); | |
895 | # else | |
896 | # ifdef WIN32 | |
3e3baf6d TB |
897 | char *envv = GetEnvironmentStrings(); |
898 | char *cur = envv; | |
899 | STRLEN len; | |
900 | while (*cur) { | |
901 | char *end = strchr(cur,'='); | |
902 | if (end && end != cur) { | |
903 | *end = '\0'; | |
904 | my_setenv(cur,Nullch); | |
905 | *end = '='; | |
ac5c734f | 906 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
907 | } |
908 | else if ((len = strlen(cur))) | |
909 | cur += len+1; | |
910 | } | |
911 | FreeEnvironmentStrings(envv); | |
7766f137 | 912 | # else |
d308986b | 913 | # ifdef __CYGWIN__ |
2c2d71f5 JH |
914 | I32 i; |
915 | for (i = 0; environ[i]; i++) | |
d702ae42 | 916 | safesysfree(environ[i]); |
7766f137 GS |
917 | # else |
918 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
919 | I32 i; |
920 | ||
3280af22 | 921 | if (environ == PL_origenviron) |
f2517201 | 922 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
923 | else |
924 | for (i = 0; environ[i]; i++) | |
f2517201 | 925 | safesysfree(environ[i]); |
7766f137 | 926 | # endif /* PERL_USE_SAFE_PUTENV */ |
d308986b | 927 | # endif /* __CYGWIN__ */ |
f2517201 | 928 | |
66b1d557 HM |
929 | environ[0] = Nullch; |
930 | ||
7766f137 GS |
931 | # endif /* WIN32 */ |
932 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 933 | #endif /* VMS */ |
3e3baf6d | 934 | return 0; |
66b1d557 HM |
935 | } |
936 | ||
937 | int | |
864dbfa3 | 938 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 939 | { |
940 | I32 i; | |
2d8e6c8d | 941 | STRLEN n_a; |
88e89b8a | 942 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 943 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 944 | if (i) { |
22c35a8c GS |
945 | if(PL_psig_ptr[i]) |
946 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 947 | else { |
ff68c719 | 948 | Sighandler_t sigstate = rsignal_state(i); |
949 | ||
88e89b8a | 950 | /* cache state so we don't fetch it again */ |
ff68c719 | 951 | if(sigstate == SIG_IGN) |
88e89b8a | 952 | sv_setpv(sv,"IGNORE"); |
953 | else | |
3280af22 | 954 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 955 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 956 | SvTEMP_off(sv); |
957 | } | |
958 | } | |
959 | return 0; | |
960 | } | |
961 | int | |
864dbfa3 | 962 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 963 | { |
964 | I32 i; | |
2d8e6c8d | 965 | STRLEN n_a; |
88e89b8a | 966 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 967 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 968 | if (i) { |
22c35a8c GS |
969 | if(PL_psig_ptr[i]) { |
970 | SvREFCNT_dec(PL_psig_ptr[i]); | |
971 | PL_psig_ptr[i]=0; | |
88e89b8a | 972 | } |
22c35a8c GS |
973 | if(PL_psig_name[i]) { |
974 | SvREFCNT_dec(PL_psig_name[i]); | |
975 | PL_psig_name[i]=0; | |
88e89b8a | 976 | } |
977 | } | |
978 | return 0; | |
979 | } | |
3d37d572 | 980 | |
85e6fe83 | 981 | int |
864dbfa3 | 982 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 983 | { |
11343788 | 984 | dTHR; |
79072805 LW |
985 | register char *s; |
986 | I32 i; | |
748a9306 | 987 | SV** svp; |
e72dc28c | 988 | STRLEN len; |
a0d0e21e | 989 | |
e72dc28c | 990 | s = MgPV(mg,len); |
748a9306 LW |
991 | if (*s == '_') { |
992 | if (strEQ(s,"__DIE__")) | |
3280af22 | 993 | svp = &PL_diehook; |
748a9306 | 994 | else if (strEQ(s,"__WARN__")) |
3280af22 | 995 | svp = &PL_warnhook; |
748a9306 | 996 | else |
cea2e8a9 | 997 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 998 | i = 0; |
4633a7c4 LW |
999 | if (*svp) { |
1000 | SvREFCNT_dec(*svp); | |
1001 | *svp = 0; | |
1002 | } | |
748a9306 LW |
1003 | } |
1004 | else { | |
1005 | i = whichsig(s); /* ...no, a brick */ | |
1006 | if (!i) { | |
e476b1b5 | 1007 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1008 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1009 | return 0; |
1010 | } | |
22c35a8c GS |
1011 | SvREFCNT_dec(PL_psig_name[i]); |
1012 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1013 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1014 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1015 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1016 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1017 | } |
a0d0e21e | 1018 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1019 | if (i) |
3280af22 | 1020 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1021 | else |
1022 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1023 | return 0; |
1024 | } | |
e72dc28c | 1025 | s = SvPV_force(sv,len); |
748a9306 LW |
1026 | if (strEQ(s,"IGNORE")) { |
1027 | if (i) | |
ff68c719 | 1028 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1029 | else |
1030 | *svp = 0; | |
1031 | } | |
1032 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1033 | if (i) | |
ff68c719 | 1034 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1035 | else |
1036 | *svp = 0; | |
1037 | } | |
79072805 | 1038 | else { |
5aabfad6 | 1039 | /* |
1040 | * We should warn if HINT_STRICT_REFS, but without | |
1041 | * access to a known hint bit in a known OP, we can't | |
1042 | * tell whether HINT_STRICT_REFS is in force or not. | |
1043 | */ | |
46fc3d4c | 1044 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1045 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1046 | if (i) |
3280af22 | 1047 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1048 | else |
1049 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1050 | } |
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | int | |
864dbfa3 | 1055 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1056 | { |
3280af22 | 1057 | PL_sub_generation++; |
463ee0b2 LW |
1058 | return 0; |
1059 | } | |
1060 | ||
1061 | int | |
864dbfa3 | 1062 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1063 | { |
a0d0e21e | 1064 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1065 | PL_amagic_generation++; |
463ee0b2 | 1066 | |
a0d0e21e LW |
1067 | return 0; |
1068 | } | |
463ee0b2 | 1069 | |
946ec16e | 1070 | int |
864dbfa3 | 1071 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1072 | { |
1073 | HV *hv = (HV*)LvTARG(sv); | |
1074 | HE *entry; | |
1075 | I32 i = 0; | |
1076 | ||
1077 | if (hv) { | |
1078 | (void) hv_iterinit(hv); | |
33c27489 | 1079 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1080 | i = HvKEYS(hv); |
1081 | else { | |
1082 | /*SUPPRESS 560*/ | |
155aba94 | 1083 | while ((entry = hv_iternext(hv))) { |
6ff81951 GS |
1084 | i++; |
1085 | } | |
1086 | } | |
1087 | } | |
1088 | ||
1089 | sv_setiv(sv, (IV)i); | |
1090 | return 0; | |
1091 | } | |
1092 | ||
1093 | int | |
864dbfa3 | 1094 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1095 | { |
1096 | if (LvTARG(sv)) { | |
1097 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1098 | } |
1099 | return 0; | |
93965878 | 1100 | } |
946ec16e | 1101 | |
e336de0d | 1102 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1103 | STATIC int |
cea2e8a9 | 1104 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1105 | { |
1106 | dSP; | |
463ee0b2 | 1107 | |
924508f0 GS |
1108 | PUSHMARK(SP); |
1109 | EXTEND(SP, n); | |
33c27489 | 1110 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1111 | if (n > 1) { |
1112 | if (mg->mg_ptr) { | |
565764a8 | 1113 | if (mg->mg_len >= 0) |
79cb57f6 | 1114 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1115 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1116 | PUSHs((SV*)mg->mg_ptr); |
1117 | } | |
1118 | else if (mg->mg_type == 'p') { | |
565764a8 | 1119 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1120 | } |
1121 | } | |
1122 | if (n > 2) { | |
1123 | PUSHs(val); | |
88e89b8a | 1124 | } |
463ee0b2 LW |
1125 | PUTBACK; |
1126 | ||
864dbfa3 | 1127 | return call_method(meth, flags); |
946ec16e | 1128 | } |
1129 | ||
76e3520e | 1130 | STATIC int |
cea2e8a9 | 1131 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1132 | { |
1133 | dSP; | |
463ee0b2 | 1134 | |
a0d0e21e LW |
1135 | ENTER; |
1136 | SAVETMPS; | |
e788e7d3 | 1137 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1138 | |
33c27489 | 1139 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1140 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1141 | } |
463ee0b2 | 1142 | |
d3acc0f7 | 1143 | POPSTACK; |
a0d0e21e LW |
1144 | FREETMPS; |
1145 | LEAVE; | |
1146 | return 0; | |
1147 | } | |
463ee0b2 | 1148 | |
a0d0e21e | 1149 | int |
864dbfa3 | 1150 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1151 | { |
1152 | magic_methpack(sv,mg,"FETCH"); | |
1153 | if (mg->mg_ptr) | |
1154 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1155 | return 0; |
1156 | } | |
1157 | ||
1158 | int | |
864dbfa3 | 1159 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1160 | { |
1161 | dSP; | |
a60c0954 | 1162 | ENTER; |
e788e7d3 | 1163 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1164 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1165 | POPSTACK; |
a60c0954 | 1166 | LEAVE; |
463ee0b2 LW |
1167 | return 0; |
1168 | } | |
1169 | ||
1170 | int | |
864dbfa3 | 1171 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1172 | { |
a0d0e21e LW |
1173 | return magic_methpack(sv,mg,"DELETE"); |
1174 | } | |
463ee0b2 | 1175 | |
93965878 NIS |
1176 | |
1177 | U32 | |
864dbfa3 | 1178 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 | 1179 | { |
e336de0d | 1180 | dSP; |
93965878 NIS |
1181 | U32 retval = 0; |
1182 | ||
1183 | ENTER; | |
1184 | SAVETMPS; | |
e788e7d3 | 1185 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1186 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1187 | sv = *PL_stack_sp--; |
a60c0954 | 1188 | retval = (U32) SvIV(sv)-1; |
93965878 | 1189 | } |
d3acc0f7 | 1190 | POPSTACK; |
93965878 NIS |
1191 | FREETMPS; |
1192 | LEAVE; | |
1193 | return retval; | |
1194 | } | |
1195 | ||
cea2e8a9 GS |
1196 | int |
1197 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1198 | { |
1199 | dSP; | |
463ee0b2 | 1200 | |
e336de0d | 1201 | ENTER; |
e788e7d3 | 1202 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1203 | PUSHMARK(SP); |
33c27489 | 1204 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1205 | PUTBACK; |
864dbfa3 | 1206 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1207 | POPSTACK; |
a60c0954 | 1208 | LEAVE; |
463ee0b2 LW |
1209 | return 0; |
1210 | } | |
1211 | ||
1212 | int | |
864dbfa3 | 1213 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1214 | { |
463ee0b2 | 1215 | dSP; |
dff6d3cd | 1216 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1217 | |
1218 | ENTER; | |
a0d0e21e | 1219 | SAVETMPS; |
e788e7d3 | 1220 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1221 | PUSHMARK(SP); |
1222 | EXTEND(SP, 2); | |
33c27489 | 1223 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1224 | if (SvOK(key)) |
1225 | PUSHs(key); | |
1226 | PUTBACK; | |
1227 | ||
864dbfa3 | 1228 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1229 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1230 | |
d3acc0f7 | 1231 | POPSTACK; |
a0d0e21e LW |
1232 | FREETMPS; |
1233 | LEAVE; | |
79072805 LW |
1234 | return 0; |
1235 | } | |
1236 | ||
1237 | int | |
864dbfa3 | 1238 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1239 | { |
1240 | return magic_methpack(sv,mg,"EXISTS"); | |
1241 | } | |
1242 | ||
1243 | int | |
864dbfa3 | 1244 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1245 | { |
11343788 | 1246 | dTHR; |
79072805 LW |
1247 | OP *o; |
1248 | I32 i; | |
1249 | GV* gv; | |
1250 | SV** svp; | |
2d8e6c8d | 1251 | STRLEN n_a; |
79072805 | 1252 | |
3280af22 | 1253 | gv = PL_DBline; |
79072805 | 1254 | i = SvTRUE(sv); |
188ea221 | 1255 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1256 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1257 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1258 | o->op_private = i; |
0453d815 PM |
1259 | else if (ckWARN_d(WARN_INTERNAL)) |
1260 | Perl_warner(aTHX_ WARN_INTERNAL, "Can't break at that line\n"); | |
79072805 LW |
1261 | return 0; |
1262 | } | |
1263 | ||
1264 | int | |
864dbfa3 | 1265 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1266 | { |
0f15f207 | 1267 | dTHR; |
3280af22 | 1268 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1269 | return 0; |
1270 | } | |
1271 | ||
1272 | int | |
864dbfa3 | 1273 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1274 | { |
0f15f207 | 1275 | dTHR; |
3280af22 | 1276 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1277 | return 0; |
1278 | } | |
1279 | ||
1280 | int | |
864dbfa3 | 1281 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1282 | { |
1283 | SV* lsv = LvTARG(sv); | |
1284 | ||
1285 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1286 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1287 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1288 | dTHR; |
a0ed51b3 | 1289 | I32 i = mg->mg_len; |
7e2040f0 | 1290 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1291 | sv_pos_b2u(lsv, &i); |
1292 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1293 | return 0; |
1294 | } | |
1295 | } | |
1296 | (void)SvOK_off(sv); | |
1297 | return 0; | |
1298 | } | |
1299 | ||
1300 | int | |
864dbfa3 | 1301 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1302 | { |
1303 | SV* lsv = LvTARG(sv); | |
1304 | SSize_t pos; | |
1305 | STRLEN len; | |
c00206c8 | 1306 | STRLEN ulen = 0; |
c485e607 | 1307 | dTHR; |
a0d0e21e LW |
1308 | |
1309 | mg = 0; | |
1310 | ||
1311 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1312 | mg = mg_find(lsv, 'g'); | |
1313 | if (!mg) { | |
1314 | if (!SvOK(sv)) | |
1315 | return 0; | |
1316 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1317 | mg = mg_find(lsv, 'g'); | |
1318 | } | |
1319 | else if (!SvOK(sv)) { | |
565764a8 | 1320 | mg->mg_len = -1; |
a0d0e21e LW |
1321 | return 0; |
1322 | } | |
1323 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1324 | ||
c485e607 | 1325 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1326 | |
7e2040f0 | 1327 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1328 | ulen = sv_len_utf8(lsv); |
1329 | if (ulen) | |
1330 | len = ulen; | |
a0ed51b3 LW |
1331 | } |
1332 | ||
a0d0e21e LW |
1333 | if (pos < 0) { |
1334 | pos += len; | |
1335 | if (pos < 0) | |
1336 | pos = 0; | |
1337 | } | |
1338 | else if (pos > len) | |
1339 | pos = len; | |
a0ed51b3 LW |
1340 | |
1341 | if (ulen) { | |
1342 | I32 p = pos; | |
1343 | sv_pos_u2b(lsv, &p, 0); | |
1344 | pos = p; | |
1345 | } | |
1346 | ||
565764a8 | 1347 | mg->mg_len = pos; |
71be2cbc | 1348 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1349 | |
79072805 LW |
1350 | return 0; |
1351 | } | |
1352 | ||
1353 | int | |
864dbfa3 | 1354 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1355 | { |
8646b087 | 1356 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1357 | SvFAKE_off(sv); | |
946ec16e | 1358 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1359 | SvFAKE_on(sv); |
1360 | } | |
1361 | else | |
946ec16e | 1362 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1363 | return 0; |
1364 | } | |
1365 | ||
1366 | int | |
864dbfa3 | 1367 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1368 | { |
1369 | register char *s; | |
1370 | GV* gv; | |
2d8e6c8d | 1371 | STRLEN n_a; |
79072805 LW |
1372 | |
1373 | if (!SvOK(sv)) | |
1374 | return 0; | |
2d8e6c8d | 1375 | s = SvPV(sv, n_a); |
79072805 LW |
1376 | if (*s == '*' && s[1]) |
1377 | s++; | |
85e6fe83 | 1378 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1379 | if (sv == (SV*)gv) |
1380 | return 0; | |
1381 | if (GvGP(sv)) | |
88e89b8a | 1382 | gp_free((GV*)sv); |
79072805 | 1383 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1384 | return 0; |
1385 | } | |
1386 | ||
1387 | int | |
864dbfa3 | 1388 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1389 | { |
1390 | STRLEN len; | |
1391 | SV *lsv = LvTARG(sv); | |
1392 | char *tmps = SvPV(lsv,len); | |
1393 | I32 offs = LvTARGOFF(sv); | |
1394 | I32 rem = LvTARGLEN(sv); | |
1395 | ||
1396 | if (offs > len) | |
1397 | offs = len; | |
1398 | if (rem + offs > len) | |
1399 | rem = len - offs; | |
1400 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1401 | return 0; | |
1402 | } | |
1403 | ||
1404 | int | |
864dbfa3 | 1405 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1406 | { |
8990e307 LW |
1407 | STRLEN len; |
1408 | char *tmps = SvPV(sv,len); | |
1409 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1410 | return 0; |
1411 | } | |
1412 | ||
1413 | int | |
864dbfa3 | 1414 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1415 | { |
a863c7d1 | 1416 | dTHR; |
565764a8 | 1417 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1418 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1419 | return 0; |
1420 | } | |
1421 | ||
1422 | int | |
864dbfa3 | 1423 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1424 | { |
11343788 | 1425 | dTHR; |
3280af22 NIS |
1426 | if (PL_localizing) { |
1427 | if (PL_localizing == 1) | |
565764a8 | 1428 | mg->mg_len <<= 1; |
748a9306 | 1429 | else |
565764a8 | 1430 | mg->mg_len >>= 1; |
a0d0e21e | 1431 | } |
3280af22 | 1432 | else if (PL_tainted) |
565764a8 | 1433 | mg->mg_len |= 1; |
748a9306 | 1434 | else |
565764a8 | 1435 | mg->mg_len &= ~1; |
463ee0b2 LW |
1436 | return 0; |
1437 | } | |
1438 | ||
1439 | int | |
864dbfa3 | 1440 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1441 | { |
1442 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1443 | |
1444 | if (!lsv) { | |
155aba94 | 1445 | (void)SvOK_off(sv); |
6ff81951 GS |
1446 | return 0; |
1447 | } | |
6ff81951 | 1448 | |
81e118e0 | 1449 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1450 | return 0; |
1451 | } | |
1452 | ||
1453 | int | |
864dbfa3 | 1454 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1455 | { |
1456 | do_vecset(sv); /* XXX slurp this routine */ | |
1457 | return 0; | |
1458 | } | |
1459 | ||
1460 | int | |
864dbfa3 | 1461 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1462 | { |
71be2cbc | 1463 | SV *targ = Nullsv; |
5f05dabc | 1464 | if (LvTARGLEN(sv)) { |
68dc0745 | 1465 | if (mg->mg_obj) { |
74e13ce4 GS |
1466 | SV *ahv = LvTARG(sv); |
1467 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1468 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1469 | if (he) | |
1470 | targ = HeVAL(he); | |
1471 | } | |
1472 | else { | |
1473 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1474 | if (svp) | |
1475 | targ = *svp; | |
1476 | } | |
68dc0745 | 1477 | } |
1478 | else { | |
3c78fafa | 1479 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1480 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1481 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1482 | } | |
3280af22 | 1483 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1484 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1485 | /* somebody else defined it for us */ |
1486 | SvREFCNT_dec(LvTARG(sv)); | |
1487 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1488 | LvTARGLEN(sv) = 0; | |
1489 | SvREFCNT_dec(mg->mg_obj); | |
1490 | mg->mg_obj = Nullsv; | |
1491 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1492 | } | |
5f05dabc | 1493 | } |
71be2cbc | 1494 | else |
1495 | targ = LvTARG(sv); | |
3280af22 | 1496 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1497 | return 0; |
1498 | } | |
1499 | ||
1500 | int | |
864dbfa3 | 1501 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1502 | { |
1503 | if (LvTARGLEN(sv)) | |
68dc0745 | 1504 | vivify_defelem(sv); |
1505 | if (LvTARG(sv)) { | |
5f05dabc | 1506 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1507 | SvSETMAGIC(LvTARG(sv)); |
1508 | } | |
5f05dabc | 1509 | return 0; |
1510 | } | |
1511 | ||
71be2cbc | 1512 | void |
864dbfa3 | 1513 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1514 | { |
e858de61 | 1515 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1516 | MAGIC *mg; |
1517 | SV *value = Nullsv; | |
71be2cbc | 1518 | |
68dc0745 | 1519 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1520 | return; |
68dc0745 | 1521 | if (mg->mg_obj) { |
74e13ce4 | 1522 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1523 | STRLEN n_a; |
74e13ce4 | 1524 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1525 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1526 | if (he) |
1527 | value = HeVAL(he); | |
1528 | } | |
1529 | else { | |
af7f9c15 | 1530 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1531 | if (svp) |
1532 | value = *svp; | |
1533 | } | |
3280af22 | 1534 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1535 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1536 | } |
68dc0745 | 1537 | else { |
1538 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1539 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1540 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1541 | else { | |
1542 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1543 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1544 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1545 | } |
1546 | } | |
3e3baf6d | 1547 | (void)SvREFCNT_inc(value); |
68dc0745 | 1548 | SvREFCNT_dec(LvTARG(sv)); |
1549 | LvTARG(sv) = value; | |
71be2cbc | 1550 | LvTARGLEN(sv) = 0; |
68dc0745 | 1551 | SvREFCNT_dec(mg->mg_obj); |
1552 | mg->mg_obj = Nullsv; | |
1553 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1554 | } |
1555 | ||
1556 | int | |
864dbfa3 | 1557 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1558 | { |
1559 | AV *av = (AV*)mg->mg_obj; | |
1560 | SV **svp = AvARRAY(av); | |
1561 | I32 i = AvFILLp(av); | |
1562 | while (i >= 0) { | |
1563 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1564 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1565 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1566 | /* XXX Should we check that it hasn't changed? */ |
1567 | SvRV(svp[i]) = 0; | |
155aba94 | 1568 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1569 | SvWEAKREF_off(svp[i]); |
1570 | svp[i] = &PL_sv_undef; | |
1571 | } | |
1572 | i--; | |
1573 | } | |
1574 | return 0; | |
1575 | } | |
1576 | ||
1577 | int | |
864dbfa3 | 1578 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1579 | { |
565764a8 | 1580 | mg->mg_len = -1; |
c6496cc7 | 1581 | SvSCREAM_off(sv); |
93a17b20 LW |
1582 | return 0; |
1583 | } | |
1584 | ||
1585 | int | |
864dbfa3 | 1586 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1587 | { |
463ee0b2 | 1588 | sv_unmagic(sv, 'B'); |
79072805 LW |
1589 | SvVALID_off(sv); |
1590 | return 0; | |
1591 | } | |
1592 | ||
1593 | int | |
864dbfa3 | 1594 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1595 | { |
1596 | sv_unmagic(sv, 'f'); | |
1597 | SvCOMPILED_off(sv); | |
1598 | return 0; | |
1599 | } | |
1600 | ||
1601 | int | |
864dbfa3 | 1602 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1603 | { |
1604 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1605 | ||
1606 | if (uf && uf->uf_set) | |
1607 | (*uf->uf_set)(uf->uf_index, sv); | |
1608 | return 0; | |
1609 | } | |
1610 | ||
c277df42 | 1611 | int |
864dbfa3 | 1612 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1613 | { |
1614 | regexp *re = (regexp *)mg->mg_obj; | |
1615 | ReREFCNT_dec(re); | |
1616 | return 0; | |
1617 | } | |
1618 | ||
7a4c00b4 | 1619 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1620 | int |
864dbfa3 | 1621 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1622 | { |
1623 | /* | |
838b5b74 | 1624 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1625 | * and vanished with a faint plop. |
1626 | */ | |
7a4c00b4 | 1627 | if (mg->mg_ptr) { |
1628 | Safefree(mg->mg_ptr); | |
1629 | mg->mg_ptr = NULL; | |
565764a8 | 1630 | mg->mg_len = -1; |
7a4c00b4 | 1631 | } |
bbce6d69 | 1632 | return 0; |
1633 | } | |
7a4c00b4 | 1634 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1635 | |
1636 | int | |
864dbfa3 | 1637 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1638 | { |
11343788 | 1639 | dTHR; |
79072805 LW |
1640 | register char *s; |
1641 | I32 i; | |
8990e307 | 1642 | STRLEN len; |
79072805 | 1643 | switch (*mg->mg_ptr) { |
748a9306 | 1644 | case '\001': /* ^A */ |
3280af22 | 1645 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1646 | break; |
49460fe6 NIS |
1647 | case '\003': /* ^C */ |
1648 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1649 | break; | |
1650 | ||
79072805 | 1651 | case '\004': /* ^D */ |
3280af22 | 1652 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1653 | DEBUG_x(dump_all()); |
1654 | break; | |
28f23441 | 1655 | case '\005': /* ^E */ |
cd39f2b6 JH |
1656 | #ifdef MACOS_TRADITIONAL |
1657 | gLastMacOSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
28f23441 | 1658 | #else |
cd39f2b6 JH |
1659 | # ifdef VMS |
1660 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1661 | # else |
cd39f2b6 JH |
1662 | # ifdef WIN32 |
1663 | SetLastError( SvIV(sv) ); | |
1664 | # else | |
1665 | # ifndef OS2 | |
f86702cc | 1666 | /* will anyone ever use this? */ |
1667 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1668 | # endif |
048c1ddf IZ |
1669 | # endif |
1670 | # endif | |
22fae026 | 1671 | #endif |
28f23441 | 1672 | break; |
79072805 | 1673 | case '\006': /* ^F */ |
3280af22 | 1674 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1675 | break; |
a0d0e21e | 1676 | case '\010': /* ^H */ |
3280af22 | 1677 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1678 | break; |
9d116dd7 | 1679 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1680 | if (PL_inplace) |
1681 | Safefree(PL_inplace); | |
79072805 | 1682 | if (SvOK(sv)) |
2d8e6c8d | 1683 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1684 | else |
3280af22 | 1685 | PL_inplace = Nullch; |
79072805 | 1686 | break; |
28f23441 | 1687 | case '\017': /* ^O */ |
3280af22 NIS |
1688 | if (PL_osname) |
1689 | Safefree(PL_osname); | |
28f23441 | 1690 | if (SvOK(sv)) |
2d8e6c8d | 1691 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1692 | else |
3280af22 | 1693 | PL_osname = Nullch; |
28f23441 | 1694 | break; |
79072805 | 1695 | case '\020': /* ^P */ |
3280af22 | 1696 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1697 | if (PL_perldb && !PL_DBsingle) |
1698 | init_debugger(); | |
79072805 LW |
1699 | break; |
1700 | case '\024': /* ^T */ | |
88e89b8a | 1701 | #ifdef BIG_TIME |
6b88bc9c | 1702 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1703 | #else |
3280af22 | 1704 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1705 | #endif |
79072805 | 1706 | break; |
46487f74 | 1707 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1708 | if (*(mg->mg_ptr+1) == '\0') { |
1709 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1710 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1711 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) | |
0453d815 | 1712 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1713 | } |
599cee73 | 1714 | } |
6a818117 | 1715 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1716 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1717 | if (!SvPOK(sv) && PL_localizing) { |
1718 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1719 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1720 | break; |
1721 | } | |
d3a7d8c7 GS |
1722 | if (isWARN_on(sv, WARN_ALL)) { |
1723 | PL_compiling.cop_warnings = pWARN_ALL; | |
4438c4b7 JH |
1724 | PL_dowarn |= G_WARN_ONCE ; |
1725 | } | |
d3a7d8c7 | 1726 | else { |
b5477537 | 1727 | STRLEN len, i; |
d3a7d8c7 | 1728 | int accumulate = 0 ; |
d3a7d8c7 GS |
1729 | char * ptr = (char*)SvPV(sv, len) ; |
1730 | for (i = 0 ; i < len ; ++i) | |
1731 | accumulate += ptr[i] ; | |
1732 | if (!accumulate) | |
1733 | PL_compiling.cop_warnings = pWARN_NONE; | |
1734 | else { | |
1735 | if (specialWARN(PL_compiling.cop_warnings)) | |
1736 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1737 | else | |
1738 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1739 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1740 | PL_dowarn |= G_WARN_ONCE ; | |
1741 | } | |
1742 | } | |
4438c4b7 | 1743 | } |
971a9dd3 | 1744 | } |
46487f74 GS |
1745 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1746 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1747 | break; |
1748 | case '.': | |
3280af22 NIS |
1749 | if (PL_localizing) { |
1750 | if (PL_localizing == 1) | |
7766f137 | 1751 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1752 | } |
3280af22 NIS |
1753 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1754 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1755 | break; |
1756 | case '^': | |
3280af22 | 1757 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1758 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1759 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1760 | break; |
1761 | case '~': | |
3280af22 | 1762 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1763 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1764 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1765 | break; |
1766 | case '=': | |
3280af22 | 1767 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1768 | break; |
1769 | case '-': | |
3280af22 NIS |
1770 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1771 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1772 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1773 | break; |
1774 | case '%': | |
3280af22 | 1775 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1776 | break; |
1777 | case '|': | |
4b65379b | 1778 | { |
3280af22 | 1779 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1780 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1781 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1782 | else { | |
1783 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1784 | PerlIO *ofp = IoOFP(io); | |
1785 | if (ofp) | |
1786 | (void)PerlIO_flush(ofp); | |
1787 | IoFLAGS(io) |= IOf_FLUSH; | |
1788 | } | |
1789 | } | |
79072805 LW |
1790 | } |
1791 | break; | |
1792 | case '*': | |
463ee0b2 | 1793 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1794 | PL_multiline = (i != 0); |
79072805 LW |
1795 | break; |
1796 | case '/': | |
3280af22 NIS |
1797 | SvREFCNT_dec(PL_nrs); |
1798 | PL_nrs = newSVsv(sv); | |
1799 | SvREFCNT_dec(PL_rs); | |
1800 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1801 | break; |
1802 | case '\\': | |
3280af22 NIS |
1803 | if (PL_ors) |
1804 | Safefree(PL_ors); | |
009c130f GS |
1805 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
1806 | s = SvPV(sv,PL_orslen); | |
1807 | PL_ors = savepvn(s,PL_orslen); | |
1808 | } | |
e3c19b7b | 1809 | else { |
3280af22 NIS |
1810 | PL_ors = Nullch; |
1811 | PL_orslen = 0; | |
e3c19b7b | 1812 | } |
79072805 LW |
1813 | break; |
1814 | case ',': | |
3280af22 NIS |
1815 | if (PL_ofs) |
1816 | Safefree(PL_ofs); | |
1817 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1818 | break; |
1819 | case '#': | |
3280af22 NIS |
1820 | if (PL_ofmt) |
1821 | Safefree(PL_ofmt); | |
2d8e6c8d | 1822 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1823 | break; |
1824 | case '[': | |
3280af22 | 1825 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1826 | break; |
1827 | case '?': | |
ff0cee69 | 1828 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1829 | if (PL_localizing == 2) { |
1830 | PL_statusvalue = LvTARGOFF(sv); | |
1831 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1832 | } |
1833 | else | |
1834 | #endif | |
1835 | #ifdef VMSISH_STATUS | |
1836 | if (VMSISH_STATUS) | |
1837 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1838 | else | |
1839 | #endif | |
1840 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1841 | break; |
1842 | case '!': | |
78987ded | 1843 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1844 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1845 | break; |
1846 | case '<': | |
3280af22 NIS |
1847 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1848 | if (PL_delaymagic) { | |
1849 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1850 | break; /* don't do magic till later */ |
1851 | } | |
1852 | #ifdef HAS_SETRUID | |
b28d0864 | 1853 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1854 | #else |
1855 | #ifdef HAS_SETREUID | |
3280af22 | 1856 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1857 | #else |
85e6fe83 | 1858 | #ifdef HAS_SETRESUID |
b28d0864 | 1859 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1860 | #else |
b28d0864 NIS |
1861 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1862 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1863 | else { |
d8eceb89 | 1864 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1865 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1866 | } |
79072805 LW |
1867 | #endif |
1868 | #endif | |
85e6fe83 | 1869 | #endif |
d8eceb89 | 1870 | PL_uid = PerlProc_getuid(); |
3280af22 | 1871 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1872 | break; |
1873 | case '>': | |
3280af22 NIS |
1874 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1875 | if (PL_delaymagic) { | |
1876 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1877 | break; /* don't do magic till later */ |
1878 | } | |
1879 | #ifdef HAS_SETEUID | |
3280af22 | 1880 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1881 | #else |
1882 | #ifdef HAS_SETREUID | |
b28d0864 | 1883 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1884 | #else |
1885 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1886 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1887 | #else |
b28d0864 NIS |
1888 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1889 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1890 | else { |
e8ee3774 | 1891 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1892 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1893 | } |
79072805 LW |
1894 | #endif |
1895 | #endif | |
85e6fe83 | 1896 | #endif |
d8eceb89 | 1897 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1898 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1899 | break; |
1900 | case '(': | |
3280af22 NIS |
1901 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1902 | if (PL_delaymagic) { | |
1903 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1904 | break; /* don't do magic till later */ |
1905 | } | |
1906 | #ifdef HAS_SETRGID | |
b28d0864 | 1907 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1908 | #else |
1909 | #ifdef HAS_SETREGID | |
3280af22 | 1910 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1911 | #else |
1912 | #ifdef HAS_SETRESGID | |
b28d0864 | 1913 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1914 | #else |
b28d0864 NIS |
1915 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1916 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1917 | else { |
d8eceb89 | 1918 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 1919 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1920 | } |
79072805 LW |
1921 | #endif |
1922 | #endif | |
85e6fe83 | 1923 | #endif |
d8eceb89 | 1924 | PL_gid = PerlProc_getgid(); |
3280af22 | 1925 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1926 | break; |
1927 | case ')': | |
5cd24f17 | 1928 | #ifdef HAS_SETGROUPS |
1929 | { | |
2d8e6c8d | 1930 | char *p = SvPV(sv, len); |
5cd24f17 | 1931 | Groups_t gary[NGROUPS]; |
1932 | ||
5cd24f17 | 1933 | while (isSPACE(*p)) |
1934 | ++p; | |
2d4389e4 | 1935 | PL_egid = Atol(p); |
5cd24f17 | 1936 | for (i = 0; i < NGROUPS; ++i) { |
1937 | while (*p && !isSPACE(*p)) | |
1938 | ++p; | |
1939 | while (isSPACE(*p)) | |
1940 | ++p; | |
1941 | if (!*p) | |
1942 | break; | |
2d4389e4 | 1943 | gary[i] = Atol(p); |
5cd24f17 | 1944 | } |
8cc95fdb | 1945 | if (i) |
1946 | (void)setgroups(i, gary); | |
5cd24f17 | 1947 | } |
1948 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1949 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1950 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1951 | if (PL_delaymagic) { |
1952 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1953 | break; /* don't do magic till later */ |
1954 | } | |
1955 | #ifdef HAS_SETEGID | |
3280af22 | 1956 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1957 | #else |
1958 | #ifdef HAS_SETREGID | |
b28d0864 | 1959 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1960 | #else |
1961 | #ifdef HAS_SETRESGID | |
b28d0864 | 1962 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1963 | #else |
b28d0864 NIS |
1964 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1965 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1966 | else { |
d8eceb89 | 1967 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 1968 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 1969 | } |
79072805 LW |
1970 | #endif |
1971 | #endif | |
85e6fe83 | 1972 | #endif |
d8eceb89 | 1973 | PL_egid = PerlProc_getegid(); |
3280af22 | 1974 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1975 | break; |
1976 | case ':': | |
2d8e6c8d | 1977 | PL_chopset = SvPV_force(sv,len); |
79072805 | 1978 | break; |
cd39f2b6 | 1979 | #ifndef MACOS_TRADITIONAL |
79072805 | 1980 | case '0': |
3280af22 NIS |
1981 | if (!PL_origalen) { |
1982 | s = PL_origargv[0]; | |
79072805 LW |
1983 | s += strlen(s); |
1984 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1985 | for (i = 1; i < PL_origargc; i++) { |
1986 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1987 | #ifdef OS2 |
6b88bc9c | 1988 | || PL_origargv[i] == s + 2 |
fb73857a | 1989 | #endif |
1990 | ) | |
379c4362 GS |
1991 | { |
1992 | ++s; | |
1993 | s += strlen(s); /* this one is ok too */ | |
1994 | } | |
fb73857a | 1995 | else |
1996 | break; | |
79072805 | 1997 | } |
bbce6d69 | 1998 | /* can grab env area too? */ |
3280af22 | 1999 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2000 | #ifdef OS2 |
6b88bc9c | 2001 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 2002 | #endif |
2003 | )) { | |
66b1d557 | 2004 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2005 | /* force copy of environment */ |
3280af22 | 2006 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2007 | if (PL_origenviron[i] == s + 1) { |
2008 | ++s; | |
2009 | s += strlen(s); | |
2010 | } | |
fb73857a | 2011 | else |
2012 | break; | |
79072805 | 2013 | } |
3280af22 | 2014 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2015 | } |
a0d0e21e | 2016 | s = SvPV_force(sv,len); |
8990e307 | 2017 | i = len; |
3280af22 NIS |
2018 | if (i >= PL_origalen) { |
2019 | i = PL_origalen; | |
fb73857a | 2020 | /* don't allow system to limit $0 seen by script */ |
2021 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2022 | Copy(s, PL_origargv[0], i, char); |
2023 | s = PL_origargv[0]+i; | |
fb73857a | 2024 | *s = '\0'; |
79072805 LW |
2025 | } |
2026 | else { | |
3280af22 NIS |
2027 | Copy(s, PL_origargv[0], i, char); |
2028 | s = PL_origargv[0]+i; | |
79072805 | 2029 | *s++ = '\0'; |
3280af22 | 2030 | while (++i < PL_origalen) |
8990e307 | 2031 | *s++ = ' '; |
3280af22 NIS |
2032 | s = PL_origargv[0]+i; |
2033 | for (i = 1; i < PL_origargc; i++) | |
2034 | PL_origargv[i] = Nullch; | |
79072805 LW |
2035 | } |
2036 | break; | |
cd39f2b6 | 2037 | #endif |
a863c7d1 MB |
2038 | #ifdef USE_THREADS |
2039 | case '@': | |
38a03e6e | 2040 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2041 | break; |
2042 | #endif /* USE_THREADS */ | |
79072805 LW |
2043 | } |
2044 | return 0; | |
2045 | } | |
2046 | ||
f93b4edd MB |
2047 | #ifdef USE_THREADS |
2048 | int | |
864dbfa3 | 2049 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd MB |
2050 | { |
2051 | dTHR; | |
b900a521 JH |
2052 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2053 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
2054 | PTR2UV(thr), PTR2UV(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 | ||
ecfc5424 | 2084 | Signal_t |
cea2e8a9 | 2085 | Perl_sighandler(int sig) |
79072805 | 2086 | { |
cea2e8a9 | 2087 | dTHX; |
79072805 | 2088 | dSP; |
00d579c5 | 2089 | GV *gv = Nullgv; |
a0d0e21e | 2090 | HV *st; |
3280af22 | 2091 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2092 | CV *cv = Nullcv; |
533c011a | 2093 | OP *myop = PL_op; |
84902520 | 2094 | U32 flags = 0; |
155aba94 | 2095 | I32 o_save_i = PL_savestack_ix; |
3280af22 | 2096 | XPV *tXpv = PL_Xpv; |
84902520 | 2097 | |
3280af22 | 2098 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2099 | flags |= 1; |
3280af22 | 2100 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2101 | flags |= 4; |
3280af22 | 2102 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2103 | flags |= 8; |
3280af22 | 2104 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2105 | flags |= 16; |
2106 | ||
22c35a8c | 2107 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2108 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2109 | PL_sig_name[sig]); |
ff0cee69 | 2110 | |
84902520 TB |
2111 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2112 | infinity, so we fix 4 (in fact 5): */ | |
2113 | if (flags & 1) { | |
3280af22 NIS |
2114 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2115 | o_save_i = PL_savestack_ix; | |
c76ac1ee | 2116 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2117 | } |
2118 | if (flags & 4) | |
3280af22 | 2119 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2120 | if (flags & 8) { |
3280af22 NIS |
2121 | PL_retstack_ix++; |
2122 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2123 | } |
2124 | if (flags & 16) | |
3280af22 | 2125 | PL_scopestack_ix += 1; |
84902520 | 2126 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2127 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2128 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2129 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2130 | |
a0d0e21e | 2131 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2132 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2133 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2134 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2135 | : ((cv && CvGV(cv)) |
2136 | ? GvENAME(CvGV(cv)) | |
2137 | : "__ANON__"))); | |
2138 | goto cleanup; | |
79072805 LW |
2139 | } |
2140 | ||
22c35a8c GS |
2141 | if(PL_psig_name[sig]) { |
2142 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2143 | flags |= 64; |
2144 | sig_sv = sv; | |
2145 | } else { | |
ff0cee69 | 2146 | sv = sv_newmortal(); |
22c35a8c | 2147 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2148 | } |
e336de0d | 2149 | |
e788e7d3 | 2150 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2151 | PUSHMARK(SP); |
79072805 | 2152 | PUSHs(sv); |
79072805 | 2153 | PUTBACK; |
a0d0e21e | 2154 | |
864dbfa3 | 2155 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2156 | |
d3acc0f7 | 2157 | POPSTACK; |
00d579c5 | 2158 | cleanup: |
84902520 | 2159 | if (flags & 1) |
3280af22 | 2160 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2161 | if (flags & 4) |
3280af22 | 2162 | PL_markstack_ptr--; |
84902520 | 2163 | if (flags & 8) |
3280af22 | 2164 | PL_retstack_ix--; |
84902520 | 2165 | if (flags & 16) |
3280af22 | 2166 | PL_scopestack_ix -= 1; |
84902520 TB |
2167 | if (flags & 64) |
2168 | SvREFCNT_dec(sv); | |
533c011a | 2169 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2170 | |
3280af22 NIS |
2171 | PL_Sv = tSv; /* Restore global temporaries. */ |
2172 | PL_Xpv = tXpv; | |
79072805 LW |
2173 | return; |
2174 | } | |
4e35701f NIS |
2175 | |
2176 | ||
51371543 | 2177 | #ifdef PERL_OBJECT |
51371543 GS |
2178 | #include "XSUB.h" |
2179 | #endif | |
2180 | ||
2181 | static void | |
2182 | restore_magic(pTHXo_ void *p) | |
2183 | { | |
2184 | dTHR; | |
48944bdf | 2185 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2186 | SV* sv = mgs->mgs_sv; |
2187 | ||
2188 | if (!sv) | |
2189 | return; | |
2190 | ||
2191 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2192 | { | |
2193 | if (mgs->mgs_flags) | |
2194 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2195 | else | |
2196 | mg_magical(sv); | |
2197 | if (SvGMAGICAL(sv)) | |
2198 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2199 | } | |
2200 | ||
2201 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2202 | ||
2203 | /* If we're still on top of the stack, pop us off. (That condition | |
2204 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2205 | * if it's being called via leave_scope.) | |
2206 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2207 | * may leave alloc gunk on the savestack, and some code | |
2208 | * (e.g. sighandler) doesn't expect that... | |
2209 | */ | |
2210 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2211 | { | |
2212 | I32 popval = SSPOPINT; | |
c76ac1ee | 2213 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2214 | PL_savestack_ix -= 2; |
2215 | popval = SSPOPINT; | |
2216 | assert(popval == SAVEt_ALLOC); | |
2217 | popval = SSPOPINT; | |
2218 | PL_savestack_ix -= popval; | |
2219 | } | |
2220 | ||
2221 | } | |
2222 | ||
2223 | static void | |
2224 | unwind_handler_stack(pTHXo_ void *p) | |
2225 | { | |
2226 | dTHR; | |
2227 | U32 flags = *(U32*)p; | |
2228 | ||
2229 | if (flags & 1) | |
2230 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2231 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2232 | if (flags & 64) | |
2233 | SvREFCNT_dec(sig_sv); | |
2234 | } |