Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
bc89e66f | 3 | * Copyright (c) 1991-2001, 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 | ||
5cd24f17 | 19 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
20 | # ifndef NGROUPS |
21 | # define NGROUPS 32 | |
22 | # endif | |
b7953727 JH |
23 | # ifdef I_GRP |
24 | # include <grp.h> | |
25 | # endif | |
188ea221 CS |
26 | #endif |
27 | ||
23ada85b | 28 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 29 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 30 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
31 | #endif |
32 | ||
acfe0abc GS |
33 | static void restore_magic(pTHX_ void *p); |
34 | static void unwind_handler_stack(pTHX_ void *p); | |
51371543 | 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 | |
8fb26106 | 48 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 49 | { |
455ece5e | 50 | MGS* mgs; |
c07a80fd | 51 | assert(SvMAGICAL(sv)); |
52 | ||
685f876f | 53 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
54 | |
55 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 56 | mgs->mgs_sv = sv; |
57 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 58 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 59 | |
60 | SvMAGICAL_off(sv); | |
61 | SvREADONLY_off(sv); | |
06759ea0 | 62 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 63 | } |
64 | ||
954c1994 GS |
65 | /* |
66 | =for apidoc mg_magical | |
67 | ||
68 | Turns on the magical status of an SV. See C<sv_magic>. | |
69 | ||
70 | =cut | |
71 | */ | |
72 | ||
8990e307 | 73 | void |
864dbfa3 | 74 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
75 | { |
76 | MAGIC* mg; | |
77 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
78 | MGVTBL* vtbl = mg->mg_virtual; | |
79 | if (vtbl) { | |
2b260de0 | 80 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
81 | SvGMAGICAL_on(sv); |
82 | if (vtbl->svt_set) | |
83 | SvSMAGICAL_on(sv); | |
2b260de0 | 84 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
85 | SvRMAGICAL_on(sv); |
86 | } | |
87 | } | |
88 | } | |
89 | ||
954c1994 GS |
90 | /* |
91 | =for apidoc mg_get | |
92 | ||
93 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
94 | ||
95 | =cut | |
96 | */ | |
97 | ||
79072805 | 98 | int |
864dbfa3 | 99 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 100 | { |
ff76feab AMS |
101 | int new = 0; |
102 | MAGIC *newmg, *head, *cur, *mg; | |
103 | I32 mgs_ix = SSNEW(sizeof(MGS)); | |
463ee0b2 | 104 | |
455ece5e | 105 | save_magic(mgs_ix, sv); |
463ee0b2 | 106 | |
ff76feab AMS |
107 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
108 | list of magic. svt_get() may delete the current entry, add new | |
109 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
110 | ||
111 | newmg = cur = head = mg = SvMAGIC(sv); | |
112 | while (mg) { | |
113 | MGVTBL *vtbl = mg->mg_virtual; | |
114 | ||
2b260de0 | 115 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 116 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
ff76feab AMS |
117 | /* Don't restore the flags for this entry if it was deleted. */ |
118 | if (mg->mg_flags & MGf_GSKIP) | |
119 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 120 | } |
ff76feab AMS |
121 | |
122 | mg = mg->mg_moremagic; | |
123 | ||
124 | if (new) { | |
125 | /* Have we finished with the new entries we saw? Start again | |
126 | where we left off (unless there are more new entries). */ | |
127 | if (mg == head) { | |
128 | new = 0; | |
129 | mg = cur; | |
130 | head = newmg; | |
131 | } | |
132 | } | |
133 | ||
134 | /* Were any new entries added? */ | |
135 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
136 | new = 1; | |
137 | cur = mg; | |
138 | mg = newmg; | |
760ac839 | 139 | } |
79072805 | 140 | } |
463ee0b2 | 141 | |
acfe0abc | 142 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
143 | return 0; |
144 | } | |
145 | ||
954c1994 GS |
146 | /* |
147 | =for apidoc mg_set | |
148 | ||
149 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
150 | ||
151 | =cut | |
152 | */ | |
153 | ||
79072805 | 154 | int |
864dbfa3 | 155 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 156 | { |
8fb26106 | 157 | I32 mgs_ix; |
79072805 | 158 | MAGIC* mg; |
463ee0b2 LW |
159 | MAGIC* nextmg; |
160 | ||
455ece5e AD |
161 | mgs_ix = SSNEW(sizeof(MGS)); |
162 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
163 | |
164 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 165 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 166 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
167 | if (mg->mg_flags & MGf_GSKIP) { |
168 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 169 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 170 | } |
2b260de0 | 171 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 172 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 173 | } |
463ee0b2 | 174 | |
acfe0abc | 175 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
176 | return 0; |
177 | } | |
178 | ||
954c1994 GS |
179 | /* |
180 | =for apidoc mg_length | |
181 | ||
182 | Report on the SV's length. See C<sv_magic>. | |
183 | ||
184 | =cut | |
185 | */ | |
186 | ||
79072805 | 187 | U32 |
864dbfa3 | 188 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
189 | { |
190 | MAGIC* mg; | |
463ee0b2 | 191 | STRLEN len; |
463ee0b2 | 192 | |
79072805 LW |
193 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
194 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 195 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 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 */ |
fc0dc3b3 | 201 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 202 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
203 | return len; |
204 | } | |
205 | } | |
206 | ||
5636d518 DB |
207 | if (DO_UTF8(sv)) |
208 | { | |
209 | U8 *s = (U8*)SvPV(sv, len); | |
210 | len = Perl_utf8_length(aTHX_ s, s + len); | |
211 | } | |
212 | else | |
213 | (void)SvPV(sv, len); | |
463ee0b2 | 214 | return len; |
79072805 LW |
215 | } |
216 | ||
8fb26106 | 217 | I32 |
864dbfa3 | 218 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
219 | { |
220 | MAGIC* mg; | |
221 | I32 len; | |
ac27b0f5 | 222 | |
93965878 NIS |
223 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
224 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 225 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 226 | I32 mgs_ix; |
455ece5e AD |
227 | |
228 | mgs_ix = SSNEW(sizeof(MGS)); | |
229 | save_magic(mgs_ix, sv); | |
93965878 | 230 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 231 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 232 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
233 | return len; |
234 | } | |
235 | } | |
236 | ||
237 | switch(SvTYPE(sv)) { | |
238 | case SVt_PVAV: | |
239 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
240 | return len; | |
241 | case SVt_PVHV: | |
242 | /* FIXME */ | |
243 | default: | |
cea2e8a9 | 244 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
245 | break; |
246 | } | |
247 | return 0; | |
248 | } | |
249 | ||
954c1994 GS |
250 | /* |
251 | =for apidoc mg_clear | |
252 | ||
253 | Clear something magical that the SV represents. See C<sv_magic>. | |
254 | ||
255 | =cut | |
256 | */ | |
257 | ||
79072805 | 258 | int |
864dbfa3 | 259 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 260 | { |
8fb26106 | 261 | I32 mgs_ix; |
79072805 | 262 | MAGIC* mg; |
463ee0b2 | 263 | |
455ece5e AD |
264 | mgs_ix = SSNEW(sizeof(MGS)); |
265 | save_magic(mgs_ix, sv); | |
463ee0b2 | 266 | |
79072805 LW |
267 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
268 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
269 | /* omit GSKIP -- never set here */ |
270 | ||
2b260de0 | 271 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 272 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 273 | } |
463ee0b2 | 274 | |
acfe0abc | 275 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
276 | return 0; |
277 | } | |
278 | ||
954c1994 GS |
279 | /* |
280 | =for apidoc mg_find | |
281 | ||
282 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
283 | ||
284 | =cut | |
285 | */ | |
286 | ||
93a17b20 | 287 | MAGIC* |
864dbfa3 | 288 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
289 | { |
290 | MAGIC* mg; | |
3f8f4626 DC |
291 | if (!sv) |
292 | return 0; | |
93a17b20 LW |
293 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
294 | if (mg->mg_type == type) | |
295 | return mg; | |
296 | } | |
297 | return 0; | |
298 | } | |
299 | ||
954c1994 GS |
300 | /* |
301 | =for apidoc mg_copy | |
302 | ||
303 | Copies the magic from one SV to another. See C<sv_magic>. | |
304 | ||
305 | =cut | |
306 | */ | |
307 | ||
79072805 | 308 | int |
864dbfa3 | 309 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 310 | { |
463ee0b2 | 311 | int count = 0; |
79072805 | 312 | MAGIC* mg; |
463ee0b2 LW |
313 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
314 | if (isUPPER(mg->mg_type)) { | |
33c27489 | 315 | sv_magic(nsv, |
14befaf4 DM |
316 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
317 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
318 | ? sv : mg->mg_obj, | |
33c27489 | 319 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 320 | count++; |
79072805 | 321 | } |
79072805 | 322 | } |
463ee0b2 | 323 | return count; |
79072805 LW |
324 | } |
325 | ||
954c1994 GS |
326 | /* |
327 | =for apidoc mg_free | |
328 | ||
329 | Free any magic storage used by the SV. See C<sv_magic>. | |
330 | ||
331 | =cut | |
332 | */ | |
333 | ||
79072805 | 334 | int |
864dbfa3 | 335 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
336 | { |
337 | MAGIC* mg; | |
338 | MAGIC* moremagic; | |
339 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
340 | MGVTBL* vtbl = mg->mg_virtual; | |
341 | moremagic = mg->mg_moremagic; | |
2b260de0 | 342 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 343 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 344 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 | 345 | if (mg->mg_len >= 0) |
88e89b8a | 346 | Safefree(mg->mg_ptr); |
565764a8 | 347 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 348 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 349 | } |
85e6fe83 | 350 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 351 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
352 | Safefree(mg); |
353 | } | |
354 | SvMAGIC(sv) = 0; | |
355 | return 0; | |
356 | } | |
357 | ||
d460ef45 | 358 | |
79072805 LW |
359 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
360 | #include <signal.h> | |
361 | #endif | |
362 | ||
942e002e | 363 | U32 |
864dbfa3 | 364 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 365 | { |
6cef1e77 | 366 | register REGEXP *rx; |
6cef1e77 | 367 | |
aaa362c4 | 368 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
369 | if (mg->mg_obj) /* @+ */ |
370 | return rx->nparens; | |
371 | else /* @- */ | |
372 | return rx->lastparen; | |
373 | } | |
ac27b0f5 | 374 | |
942e002e | 375 | return (U32)-1; |
6cef1e77 IZ |
376 | } |
377 | ||
378 | int | |
864dbfa3 | 379 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 380 | { |
6cef1e77 | 381 | register I32 paren; |
cf93c79d | 382 | register I32 s; |
6cef1e77 IZ |
383 | register I32 i; |
384 | register REGEXP *rx; | |
cf93c79d | 385 | I32 t; |
6cef1e77 | 386 | |
aaa362c4 | 387 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
388 | paren = mg->mg_len; |
389 | if (paren < 0) | |
390 | return 0; | |
391 | if (paren <= rx->nparens && | |
cf93c79d IZ |
392 | (s = rx->startp[paren]) != -1 && |
393 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
394 | { |
395 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 396 | i = t; |
6cef1e77 | 397 | else /* @- */ |
cf93c79d | 398 | i = s; |
1aa99e6b | 399 | |
53c4c00c | 400 | if (i > 0 && PL_reg_match_utf8) { |
1aa99e6b | 401 | char *b = rx->subbeg; |
0064a8a9 JH |
402 | if (b) |
403 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 404 | } |
0064a8a9 JH |
405 | |
406 | sv_setiv(sv, i); | |
6cef1e77 IZ |
407 | } |
408 | } | |
409 | return 0; | |
410 | } | |
411 | ||
e4b89193 | 412 | int |
a29d06ed MG |
413 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
414 | { | |
a29d06ed | 415 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
416 | /* NOT REACHED */ |
417 | return 0; | |
a29d06ed MG |
418 | } |
419 | ||
93a17b20 | 420 | U32 |
864dbfa3 | 421 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
422 | { |
423 | register I32 paren; | |
93a17b20 | 424 | register I32 i; |
d9f97599 | 425 | register REGEXP *rx; |
a197cbdd | 426 | I32 s1, t1; |
93a17b20 LW |
427 | |
428 | switch (*mg->mg_ptr) { | |
429 | case '1': case '2': case '3': case '4': | |
430 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 431 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 432 | |
ffc61ed2 | 433 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 434 | getparen: |
d9f97599 | 435 | if (paren <= rx->nparens && |
cf93c79d IZ |
436 | (s1 = rx->startp[paren]) != -1 && |
437 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 438 | { |
cf93c79d | 439 | i = t1 - s1; |
a197cbdd | 440 | getlen: |
53c4c00c | 441 | if (i > 0 && PL_reg_match_utf8) { |
ffc61ed2 | 442 | char *s = rx->subbeg + s1; |
a197cbdd | 443 | char *send = rx->subbeg + t1; |
ffc61ed2 | 444 | |
60425c38 JH |
445 | i = t1 - s1; |
446 | if (is_utf8_string((U8*)s, i)) | |
447 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 448 | } |
ffc61ed2 | 449 | if (i < 0) |
0844c848 | 450 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 451 | return i; |
93a17b20 | 452 | } |
93a17b20 | 453 | } |
748a9306 | 454 | return 0; |
93a17b20 | 455 | case '+': |
aaa362c4 | 456 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 457 | paren = rx->lastparen; |
13f57bf8 CS |
458 | if (paren) |
459 | goto getparen; | |
93a17b20 | 460 | } |
748a9306 | 461 | return 0; |
a01268b5 JH |
462 | case '\016': /* ^N */ |
463 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
464 | paren = rx->lastcloseparen; | |
465 | if (paren) | |
466 | goto getparen; | |
467 | } | |
468 | return 0; | |
93a17b20 | 469 | case '`': |
aaa362c4 | 470 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
471 | if (rx->startp[0] != -1) { |
472 | i = rx->startp[0]; | |
a197cbdd GS |
473 | if (i > 0) { |
474 | s1 = 0; | |
475 | t1 = i; | |
476 | goto getlen; | |
477 | } | |
93a17b20 | 478 | } |
93a17b20 | 479 | } |
748a9306 | 480 | return 0; |
93a17b20 | 481 | case '\'': |
aaa362c4 | 482 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
483 | if (rx->endp[0] != -1) { |
484 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
485 | if (i > 0) { |
486 | s1 = rx->endp[0]; | |
487 | t1 = rx->sublen; | |
488 | goto getlen; | |
489 | } | |
93a17b20 | 490 | } |
93a17b20 | 491 | } |
748a9306 | 492 | return 0; |
93a17b20 LW |
493 | } |
494 | magic_get(sv,mg); | |
2d8e6c8d GS |
495 | if (!SvPOK(sv) && SvNIOK(sv)) { |
496 | STRLEN n_a; | |
497 | sv_2pv(sv, &n_a); | |
498 | } | |
93a17b20 LW |
499 | if (SvPOK(sv)) |
500 | return SvCUR(sv); | |
501 | return 0; | |
502 | } | |
503 | ||
79072805 | 504 | int |
864dbfa3 | 505 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
506 | { |
507 | register I32 paren; | |
508 | register char *s; | |
509 | register I32 i; | |
d9f97599 | 510 | register REGEXP *rx; |
79072805 LW |
511 | |
512 | switch (*mg->mg_ptr) { | |
748a9306 | 513 | case '\001': /* ^A */ |
3280af22 | 514 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 515 | break; |
49460fe6 NIS |
516 | case '\003': /* ^C */ |
517 | sv_setiv(sv, (IV)PL_minus_c); | |
518 | break; | |
519 | ||
79072805 | 520 | case '\004': /* ^D */ |
aea4f609 | 521 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 522 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 523 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 524 | #endif |
79072805 | 525 | break; |
28f23441 | 526 | case '\005': /* ^E */ |
0a378802 | 527 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 528 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
529 | { |
530 | char msg[256]; | |
ac27b0f5 | 531 | |
0a378802 JH |
532 | sv_setnv(sv,(double)gMacPerl_OSErr); |
533 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
534 | } | |
cd39f2b6 | 535 | #else |
28f23441 | 536 | #ifdef VMS |
0a378802 JH |
537 | { |
538 | # include <descrip.h> | |
539 | # include <starlet.h> | |
540 | char msg[255]; | |
541 | $DESCRIPTOR(msgdsc,msg); | |
542 | sv_setnv(sv,(NV) vaxc$errno); | |
543 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
544 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
545 | else | |
546 | sv_setpv(sv,""); | |
547 | } | |
28f23441 | 548 | #else |
88e89b8a | 549 | #ifdef OS2 |
0a378802 JH |
550 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
551 | sv_setnv(sv, (NV)errno); | |
552 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
553 | } else { | |
554 | if (errno != errno_isOS2) { | |
555 | int tmp = _syserrno(); | |
556 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
557 | Perl_rc = tmp; | |
558 | } | |
559 | sv_setnv(sv, (NV)Perl_rc); | |
560 | sv_setpv(sv, os2error(Perl_rc)); | |
561 | } | |
88e89b8a | 562 | #else |
22fae026 | 563 | #ifdef WIN32 |
0a378802 JH |
564 | { |
565 | DWORD dwErr = GetLastError(); | |
566 | sv_setnv(sv, (NV)dwErr); | |
567 | if (dwErr) | |
568 | { | |
569 | PerlProc_GetOSError(sv, dwErr); | |
570 | } | |
571 | else | |
572 | sv_setpv(sv, ""); | |
573 | SetLastError(dwErr); | |
574 | } | |
22fae026 | 575 | #else |
0a378802 JH |
576 | sv_setnv(sv, (NV)errno); |
577 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
28f23441 | 578 | #endif |
88e89b8a | 579 | #endif |
22fae026 | 580 | #endif |
cd39f2b6 | 581 | #endif |
0a378802 JH |
582 | SvNOK_on(sv); /* what a wonderful hack! */ |
583 | } | |
584 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
585 | sv_setsv(sv, PL_encoding); | |
586 | break; | |
79072805 | 587 | case '\006': /* ^F */ |
3280af22 | 588 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 589 | break; |
a0d0e21e | 590 | case '\010': /* ^H */ |
3280af22 | 591 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 592 | break; |
9d116dd7 | 593 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
594 | if (PL_inplace) |
595 | sv_setpv(sv, PL_inplace); | |
79072805 | 596 | else |
3280af22 | 597 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 598 | break; |
ac27b0f5 NIS |
599 | case '\017': /* ^O & ^OPEN */ |
600 | if (*(mg->mg_ptr+1) == '\0') | |
601 | sv_setpv(sv, PL_osname); | |
602 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
603 | if (!PL_compiling.cop_io) | |
604 | sv_setsv(sv, &PL_sv_undef); | |
605 | else { | |
606 | sv_setsv(sv, PL_compiling.cop_io); | |
607 | } | |
608 | } | |
28f23441 | 609 | break; |
79072805 | 610 | case '\020': /* ^P */ |
3280af22 | 611 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 612 | break; |
fb73857a | 613 | case '\023': /* ^S */ |
d58bf5aa | 614 | { |
3280af22 | 615 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 616 | (void)SvOK_off(sv); |
3280af22 | 617 | else if (PL_in_eval) |
6dc8a9e4 | 618 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
619 | else |
620 | sv_setiv(sv, 0); | |
d58bf5aa | 621 | } |
fb73857a | 622 | break; |
79072805 | 623 | case '\024': /* ^T */ |
7c36658b | 624 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 625 | #ifdef BIG_TIME |
7c36658b | 626 | sv_setnv(sv, PL_basetime); |
88e89b8a | 627 | #else |
7c36658b | 628 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 629 | #endif |
7c36658b MS |
630 | } |
631 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
632 | sv_setiv(sv, PL_tainting); | |
633 | break; | |
46487f74 | 634 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
635 | if (*(mg->mg_ptr+1) == '\0') |
636 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 637 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
638 | if (PL_compiling.cop_warnings == pWARN_NONE || |
639 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
640 | { |
641 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
642 | } | |
d3a7d8c7 | 643 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 644 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 645 | } |
4438c4b7 JH |
646 | else { |
647 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 648 | } |
d3a7d8c7 | 649 | SvPOK_only(sv); |
4438c4b7 | 650 | } |
0a378802 | 651 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
46487f74 | 652 | sv_setiv(sv, (IV)PL_widesyscalls); |
79072805 LW |
653 | break; |
654 | case '1': case '2': case '3': case '4': | |
655 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 656 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
657 | I32 s1, t1; |
658 | ||
a863c7d1 MB |
659 | /* |
660 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
661 | * XXX Does the new way break anything? | |
662 | */ | |
ffc61ed2 | 663 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 664 | getparen: |
d9f97599 | 665 | if (paren <= rx->nparens && |
cf93c79d IZ |
666 | (s1 = rx->startp[paren]) != -1 && |
667 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 668 | { |
cf93c79d IZ |
669 | i = t1 - s1; |
670 | s = rx->subbeg + s1; | |
01ec43d0 | 671 | if (!rx->subbeg) |
c2e66d9e GS |
672 | break; |
673 | ||
13f57bf8 | 674 | getrx: |
748a9306 | 675 | if (i >= 0) { |
b7953727 | 676 | bool was_tainted = FALSE; |
3280af22 NIS |
677 | if (PL_tainting) { |
678 | was_tainted = PL_tainted; | |
679 | PL_tainted = FALSE; | |
13f57bf8 | 680 | } |
cf93c79d | 681 | sv_setpvn(sv, s, i); |
53c4c00c | 682 | if (PL_reg_match_utf8 && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
683 | SvUTF8_on(sv); |
684 | else | |
685 | SvUTF8_off(sv); | |
3280af22 NIS |
686 | if (PL_tainting) |
687 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
688 | break; |
689 | } | |
79072805 | 690 | } |
79072805 | 691 | } |
3280af22 | 692 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
693 | break; |
694 | case '+': | |
aaa362c4 | 695 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 696 | paren = rx->lastparen; |
a0d0e21e LW |
697 | if (paren) |
698 | goto getparen; | |
79072805 | 699 | } |
3280af22 | 700 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 701 | break; |
a01268b5 JH |
702 | case '\016': /* ^N */ |
703 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
704 | paren = rx->lastcloseparen; | |
705 | if (paren) | |
706 | goto getparen; | |
707 | } | |
708 | sv_setsv(sv,&PL_sv_undef); | |
709 | break; | |
79072805 | 710 | case '`': |
aaa362c4 | 711 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
712 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
713 | i = rx->startp[0]; | |
13f57bf8 | 714 | goto getrx; |
79072805 | 715 | } |
79072805 | 716 | } |
3280af22 | 717 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
718 | break; |
719 | case '\'': | |
aaa362c4 | 720 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
721 | if (rx->subbeg && rx->endp[0] != -1) { |
722 | s = rx->subbeg + rx->endp[0]; | |
723 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 724 | goto getrx; |
79072805 | 725 | } |
79072805 | 726 | } |
3280af22 | 727 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
728 | break; |
729 | case '.': | |
730 | #ifndef lint | |
3280af22 | 731 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 732 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
733 | } |
734 | #endif | |
735 | break; | |
736 | case '?': | |
809a5acc | 737 | { |
809a5acc | 738 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 739 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
740 | LvTARGOFF(sv) = PL_statusvalue; |
741 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 742 | #endif |
809a5acc | 743 | } |
79072805 LW |
744 | break; |
745 | case '^': | |
3280af22 | 746 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
747 | if (s) |
748 | sv_setpv(sv,s); | |
749 | else { | |
3280af22 | 750 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
751 | sv_catpv(sv,"_TOP"); |
752 | } | |
753 | break; | |
754 | case '~': | |
3280af22 | 755 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 756 | if (!s) |
3280af22 | 757 | s = GvENAME(PL_defoutgv); |
79072805 LW |
758 | sv_setpv(sv,s); |
759 | break; | |
760 | #ifndef lint | |
761 | case '=': | |
3280af22 | 762 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
763 | break; |
764 | case '-': | |
3280af22 | 765 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
766 | break; |
767 | case '%': | |
3280af22 | 768 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
769 | break; |
770 | #endif | |
771 | case ':': | |
772 | break; | |
773 | case '/': | |
774 | break; | |
775 | case '[': | |
3280af22 | 776 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
777 | break; |
778 | case '|': | |
3280af22 | 779 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
780 | break; |
781 | case ',': | |
79072805 LW |
782 | break; |
783 | case '\\': | |
79072805 LW |
784 | break; |
785 | case '#': | |
3280af22 | 786 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
787 | break; |
788 | case '!': | |
a5f75d66 | 789 | #ifdef VMS |
65202027 | 790 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 791 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 792 | #else |
88e89b8a | 793 | { |
794 | int saveerrno = errno; | |
65202027 | 795 | sv_setnv(sv, (NV)errno); |
88e89b8a | 796 | #ifdef OS2 |
ed344e4f IZ |
797 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
798 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 799 | else |
a5f75d66 | 800 | #endif |
2304df62 | 801 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 802 | errno = saveerrno; |
803 | } | |
804 | #endif | |
946ec16e | 805 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
806 | break; |
807 | case '<': | |
3280af22 | 808 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
809 | break; |
810 | case '>': | |
3280af22 | 811 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
812 | break; |
813 | case '(': | |
3280af22 | 814 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 815 | #ifdef HAS_GETGROUPS |
785fb66b | 816 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 817 | #endif |
79072805 LW |
818 | goto add_groups; |
819 | case ')': | |
3280af22 | 820 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 821 | #ifdef HAS_GETGROUPS |
785fb66b | 822 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 823 | #endif |
79072805 | 824 | add_groups: |
79072805 | 825 | #ifdef HAS_GETGROUPS |
79072805 | 826 | { |
a0d0e21e | 827 | Groups_t gary[NGROUPS]; |
79072805 | 828 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 829 | while (--i >= 0) |
785fb66b | 830 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
831 | } |
832 | #endif | |
155aba94 | 833 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
834 | break; |
835 | case '*': | |
836 | break; | |
cd39f2b6 | 837 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
838 | case '0': |
839 | break; | |
cd39f2b6 | 840 | #endif |
4d1ff10f | 841 | #ifdef USE_5005THREADS |
a863c7d1 | 842 | case '@': |
38a03e6e | 843 | sv_setsv(sv, thr->errsv); |
a863c7d1 | 844 | break; |
4d1ff10f | 845 | #endif /* USE_5005THREADS */ |
79072805 | 846 | } |
a0d0e21e | 847 | return 0; |
79072805 LW |
848 | } |
849 | ||
850 | int | |
864dbfa3 | 851 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
852 | { |
853 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
854 | ||
855 | if (uf && uf->uf_val) | |
24f81a43 | 856 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
857 | return 0; |
858 | } | |
859 | ||
860 | int | |
864dbfa3 | 861 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
862 | { |
863 | register char *s; | |
88e89b8a | 864 | char *ptr; |
5aabfad6 | 865 | STRLEN len, klen; |
a0d0e21e | 866 | I32 i; |
1e422769 | 867 | |
a0d0e21e | 868 | s = SvPV(sv,len); |
5aabfad6 | 869 | ptr = MgPV(mg,klen); |
88e89b8a | 870 | my_setenv(ptr, s); |
1e422769 | 871 | |
a0d0e21e LW |
872 | #ifdef DYNAMIC_ENV_FETCH |
873 | /* We just undefd an environment var. Is a replacement */ | |
874 | /* waiting in the wings? */ | |
875 | if (!len) { | |
5aabfad6 | 876 | SV **valp; |
6b88bc9c | 877 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 878 | s = SvPV(*valp, len); |
a0d0e21e LW |
879 | } |
880 | #endif | |
1e422769 | 881 | |
39e571d4 | 882 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
883 | /* And you'll never guess what the dog had */ |
884 | /* in its mouth... */ | |
3280af22 | 885 | if (PL_tainting) { |
1e422769 | 886 | MgTAINTEDDIR_off(mg); |
887 | #ifdef VMS | |
5aabfad6 | 888 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 889 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
890 | struct stat sbuf; | |
891 | int i = 0, j = 0; | |
892 | ||
893 | do { /* DCL$PATH may be a search list */ | |
894 | while (1) { /* as may dev portion of any element */ | |
895 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
896 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
897 | cando_by_name(S_IWUSR,0,elt) ) { | |
898 | MgTAINTEDDIR_on(mg); | |
899 | return 0; | |
900 | } | |
901 | } | |
902 | if ((cp = strchr(elt, ':')) != Nullch) | |
903 | *cp = '\0'; | |
904 | if (my_trnlnm(elt, eltbuf, j++)) | |
905 | elt = eltbuf; | |
906 | else | |
907 | break; | |
908 | } | |
909 | j = 0; | |
910 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
911 | } | |
912 | #endif /* VMS */ | |
5aabfad6 | 913 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 914 | char *strend = s + len; |
463ee0b2 LW |
915 | |
916 | while (s < strend) { | |
96827780 | 917 | char tmpbuf[256]; |
1e422769 | 918 | struct stat st; |
96827780 | 919 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 920 | s, strend, ':', &i); |
463ee0b2 | 921 | s++; |
96827780 MB |
922 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
923 | || *tmpbuf != '/' | |
c6ed36e1 | 924 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 925 | MgTAINTEDDIR_on(mg); |
1e422769 | 926 | return 0; |
927 | } | |
463ee0b2 | 928 | } |
79072805 LW |
929 | } |
930 | } | |
39e571d4 | 931 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 932 | |
79072805 LW |
933 | return 0; |
934 | } | |
935 | ||
936 | int | |
864dbfa3 | 937 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 938 | { |
2d8e6c8d GS |
939 | STRLEN n_a; |
940 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
941 | return 0; |
942 | } | |
943 | ||
88e89b8a | 944 | int |
864dbfa3 | 945 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 946 | { |
947 | #if defined(VMS) | |
cea2e8a9 | 948 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 949 | #else |
3280af22 | 950 | if (PL_localizing) { |
fb73857a | 951 | HE* entry; |
2d8e6c8d | 952 | STRLEN n_a; |
fb73857a | 953 | magic_clear_all_env(sv,mg); |
954 | hv_iterinit((HV*)sv); | |
155aba94 | 955 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 956 | I32 keylen; |
957 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 958 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 959 | } |
960 | } | |
961 | #endif | |
962 | return 0; | |
963 | } | |
964 | ||
965 | int | |
864dbfa3 | 966 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 967 | { |
ed79a026 | 968 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 969 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 970 | #else |
df3728a2 | 971 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 GS |
972 | PerlEnv_clearenv(); |
973 | # else | |
052c2dc6 | 974 | # ifdef USE_ENVIRON_ARRAY |
7766f137 | 975 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
976 | I32 i; |
977 | ||
3280af22 | 978 | if (environ == PL_origenviron) |
f2517201 | 979 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
980 | else |
981 | for (i = 0; environ[i]; i++) | |
f2517201 | 982 | safesysfree(environ[i]); |
7766f137 | 983 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 984 | |
66b1d557 HM |
985 | environ[0] = Nullch; |
986 | ||
052c2dc6 JH |
987 | # endif /* USE_ENVIRON_ARRAY */ |
988 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ | |
989 | #endif /* VMS || EPC */ | |
3e3baf6d | 990 | return 0; |
66b1d557 HM |
991 | } |
992 | ||
23ada85b | 993 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
994 | static int sig_ignoring_initted = 0; |
995 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ | |
996 | #endif | |
997 | ||
64ca3a65 | 998 | #ifndef PERL_MICRO |
66b1d557 | 999 | int |
864dbfa3 | 1000 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1001 | { |
1002 | I32 i; | |
2d8e6c8d | 1003 | STRLEN n_a; |
88e89b8a | 1004 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1005 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1006 | if (i) { |
22c35a8c GS |
1007 | if(PL_psig_ptr[i]) |
1008 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1009 | else { |
85b332e2 | 1010 | Sighandler_t sigstate; |
23ada85b | 1011 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1012 | if (sig_ignoring_initted && sig_ignoring[i]) |
1013 | sigstate = SIG_IGN; | |
1014 | else | |
1015 | #endif | |
1016 | sigstate = rsignal_state(i); | |
ff68c719 | 1017 | |
88e89b8a | 1018 | /* cache state so we don't fetch it again */ |
ff68c719 | 1019 | if(sigstate == SIG_IGN) |
88e89b8a | 1020 | sv_setpv(sv,"IGNORE"); |
1021 | else | |
3280af22 | 1022 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1023 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1024 | SvTEMP_off(sv); |
1025 | } | |
1026 | } | |
1027 | return 0; | |
1028 | } | |
1029 | int | |
864dbfa3 | 1030 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1031 | { |
1032 | I32 i; | |
2d8e6c8d | 1033 | STRLEN n_a; |
88e89b8a | 1034 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 1035 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1036 | if (i) { |
22c35a8c GS |
1037 | if(PL_psig_ptr[i]) { |
1038 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1039 | PL_psig_ptr[i]=0; | |
88e89b8a | 1040 | } |
22c35a8c GS |
1041 | if(PL_psig_name[i]) { |
1042 | SvREFCNT_dec(PL_psig_name[i]); | |
1043 | PL_psig_name[i]=0; | |
88e89b8a | 1044 | } |
1045 | } | |
1046 | return 0; | |
1047 | } | |
3d37d572 | 1048 | |
0a8e0eff NIS |
1049 | void |
1050 | Perl_raise_signal(pTHX_ int sig) | |
1051 | { | |
1052 | /* Set a flag to say this signal is pending */ | |
1053 | PL_psig_pend[sig]++; | |
1054 | /* And one to say _a_ signal is pending */ | |
1055 | PL_sig_pending = 1; | |
1056 | } | |
1057 | ||
1058 | Signal_t | |
1059 | Perl_csighandler(int sig) | |
1060 | { | |
85b332e2 CL |
1061 | #ifndef PERL_OLD_SIGNALS |
1062 | dTHX; | |
1063 | #endif | |
23ada85b | 1064 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1065 | (void) rsignal(sig, &Perl_csighandler); |
1066 | if (sig_ignoring[sig]) return; | |
1067 | #endif | |
0a8e0eff NIS |
1068 | #ifdef PERL_OLD_SIGNALS |
1069 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1070 | (*PL_sighandlerp)(sig); | |
1071 | #else | |
0a8e0eff NIS |
1072 | Perl_raise_signal(aTHX_ sig); |
1073 | #endif | |
1074 | } | |
1075 | ||
1076 | void | |
1077 | Perl_despatch_signals(pTHX) | |
1078 | { | |
1079 | int sig; | |
1080 | PL_sig_pending = 0; | |
1081 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1082 | if (PL_psig_pend[sig]) { | |
1083 | PL_psig_pend[sig] = 0; | |
1084 | (*PL_sighandlerp)(sig); | |
1085 | } | |
1086 | } | |
1087 | } | |
1088 | ||
85e6fe83 | 1089 | int |
864dbfa3 | 1090 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1091 | { |
1092 | register char *s; | |
1093 | I32 i; | |
b7953727 | 1094 | SV** svp = 0; |
e72dc28c | 1095 | STRLEN len; |
a0d0e21e | 1096 | |
e72dc28c | 1097 | s = MgPV(mg,len); |
748a9306 LW |
1098 | if (*s == '_') { |
1099 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1100 | svp = &PL_diehook; |
748a9306 | 1101 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1102 | svp = &PL_warnhook; |
748a9306 | 1103 | else |
cea2e8a9 | 1104 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1105 | i = 0; |
4633a7c4 LW |
1106 | if (*svp) { |
1107 | SvREFCNT_dec(*svp); | |
1108 | *svp = 0; | |
1109 | } | |
748a9306 LW |
1110 | } |
1111 | else { | |
1112 | i = whichsig(s); /* ...no, a brick */ | |
1113 | if (!i) { | |
e476b1b5 | 1114 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1115 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1116 | return 0; |
1117 | } | |
23ada85b | 1118 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1119 | if (!sig_ignoring_initted) { |
1120 | int j; | |
1121 | for (j = 0; j < SIG_SIZE; j++) sig_ignoring[j] = 0; | |
1122 | sig_ignoring_initted = 1; | |
1123 | } | |
1124 | sig_ignoring[i] = 0; | |
1125 | #endif | |
22c35a8c GS |
1126 | SvREFCNT_dec(PL_psig_name[i]); |
1127 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1128 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1129 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1130 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1131 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1132 | } |
a0d0e21e | 1133 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1134 | if (i) |
0a8e0eff | 1135 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1136 | else |
1137 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1138 | return 0; |
1139 | } | |
e72dc28c | 1140 | s = SvPV_force(sv,len); |
748a9306 | 1141 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1142 | if (i) { |
23ada85b | 1143 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1144 | sig_ignoring[i] = 1; |
1145 | (void)rsignal(i, &Perl_csighandler); | |
1146 | #else | |
ff68c719 | 1147 | (void)rsignal(i, SIG_IGN); |
85b332e2 CL |
1148 | #endif |
1149 | } else | |
748a9306 LW |
1150 | *svp = 0; |
1151 | } | |
1152 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1153 | if (i) | |
ff68c719 | 1154 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1155 | else |
1156 | *svp = 0; | |
1157 | } | |
79072805 | 1158 | else { |
5aabfad6 | 1159 | /* |
1160 | * We should warn if HINT_STRICT_REFS, but without | |
1161 | * access to a known hint bit in a known OP, we can't | |
1162 | * tell whether HINT_STRICT_REFS is in force or not. | |
1163 | */ | |
46fc3d4c | 1164 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1165 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1166 | if (i) |
0a8e0eff | 1167 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1168 | else |
1169 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1170 | } |
1171 | return 0; | |
1172 | } | |
64ca3a65 | 1173 | #endif /* !PERL_MICRO */ |
79072805 LW |
1174 | |
1175 | int | |
864dbfa3 | 1176 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1177 | { |
3280af22 | 1178 | PL_sub_generation++; |
463ee0b2 LW |
1179 | return 0; |
1180 | } | |
1181 | ||
1182 | int | |
864dbfa3 | 1183 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1184 | { |
a0d0e21e | 1185 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1186 | PL_amagic_generation++; |
463ee0b2 | 1187 | |
a0d0e21e LW |
1188 | return 0; |
1189 | } | |
463ee0b2 | 1190 | |
946ec16e | 1191 | int |
864dbfa3 | 1192 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1193 | { |
1194 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1195 | I32 i = 0; |
497b47a8 | 1196 | |
6ff81951 | 1197 | if (hv) { |
497b47a8 JH |
1198 | (void) hv_iterinit(hv); |
1199 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1200 | i = HvKEYS(hv); | |
1201 | else { | |
1202 | while (hv_iternext(hv)) | |
1203 | i++; | |
1204 | } | |
6ff81951 GS |
1205 | } |
1206 | ||
1207 | sv_setiv(sv, (IV)i); | |
1208 | return 0; | |
1209 | } | |
1210 | ||
1211 | int | |
864dbfa3 | 1212 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1213 | { |
1214 | if (LvTARG(sv)) { | |
1215 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1216 | } |
1217 | return 0; | |
ac27b0f5 | 1218 | } |
946ec16e | 1219 | |
e336de0d | 1220 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1221 | STATIC int |
cea2e8a9 | 1222 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1223 | { |
1224 | dSP; | |
463ee0b2 | 1225 | |
924508f0 GS |
1226 | PUSHMARK(SP); |
1227 | EXTEND(SP, n); | |
33c27489 | 1228 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1229 | if (n > 1) { |
93965878 | 1230 | if (mg->mg_ptr) { |
565764a8 | 1231 | if (mg->mg_len >= 0) |
79cb57f6 | 1232 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1233 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1234 | PUSHs((SV*)mg->mg_ptr); |
1235 | } | |
14befaf4 | 1236 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1237 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1238 | } |
1239 | } | |
1240 | if (n > 2) { | |
1241 | PUSHs(val); | |
88e89b8a | 1242 | } |
463ee0b2 LW |
1243 | PUTBACK; |
1244 | ||
864dbfa3 | 1245 | return call_method(meth, flags); |
946ec16e | 1246 | } |
1247 | ||
76e3520e | 1248 | STATIC int |
cea2e8a9 | 1249 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1250 | { |
1251 | dSP; | |
463ee0b2 | 1252 | |
a0d0e21e LW |
1253 | ENTER; |
1254 | SAVETMPS; | |
e788e7d3 | 1255 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1256 | |
33c27489 | 1257 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1258 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1259 | } |
463ee0b2 | 1260 | |
d3acc0f7 | 1261 | POPSTACK; |
a0d0e21e LW |
1262 | FREETMPS; |
1263 | LEAVE; | |
1264 | return 0; | |
1265 | } | |
463ee0b2 | 1266 | |
a0d0e21e | 1267 | int |
864dbfa3 | 1268 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1269 | { |
1270 | magic_methpack(sv,mg,"FETCH"); | |
1271 | if (mg->mg_ptr) | |
1272 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1273 | return 0; |
1274 | } | |
1275 | ||
1276 | int | |
864dbfa3 | 1277 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1278 | { |
1279 | dSP; | |
a60c0954 | 1280 | ENTER; |
e788e7d3 | 1281 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1282 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1283 | POPSTACK; |
a60c0954 | 1284 | LEAVE; |
463ee0b2 LW |
1285 | return 0; |
1286 | } | |
1287 | ||
1288 | int | |
864dbfa3 | 1289 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1290 | { |
a0d0e21e LW |
1291 | return magic_methpack(sv,mg,"DELETE"); |
1292 | } | |
463ee0b2 | 1293 | |
93965878 NIS |
1294 | |
1295 | U32 | |
864dbfa3 | 1296 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1297 | { |
e336de0d | 1298 | dSP; |
93965878 NIS |
1299 | U32 retval = 0; |
1300 | ||
1301 | ENTER; | |
1302 | SAVETMPS; | |
e788e7d3 | 1303 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1304 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1305 | sv = *PL_stack_sp--; |
a60c0954 | 1306 | retval = (U32) SvIV(sv)-1; |
93965878 | 1307 | } |
d3acc0f7 | 1308 | POPSTACK; |
93965878 NIS |
1309 | FREETMPS; |
1310 | LEAVE; | |
1311 | return retval; | |
1312 | } | |
1313 | ||
cea2e8a9 GS |
1314 | int |
1315 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1316 | { |
1317 | dSP; | |
463ee0b2 | 1318 | |
e336de0d | 1319 | ENTER; |
e788e7d3 | 1320 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1321 | PUSHMARK(SP); |
33c27489 | 1322 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1323 | PUTBACK; |
864dbfa3 | 1324 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1325 | POPSTACK; |
a60c0954 | 1326 | LEAVE; |
463ee0b2 LW |
1327 | return 0; |
1328 | } | |
1329 | ||
1330 | int | |
864dbfa3 | 1331 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1332 | { |
463ee0b2 | 1333 | dSP; |
dff6d3cd | 1334 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1335 | |
1336 | ENTER; | |
a0d0e21e | 1337 | SAVETMPS; |
e788e7d3 | 1338 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1339 | PUSHMARK(SP); |
1340 | EXTEND(SP, 2); | |
33c27489 | 1341 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1342 | if (SvOK(key)) |
1343 | PUSHs(key); | |
1344 | PUTBACK; | |
1345 | ||
864dbfa3 | 1346 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1347 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1348 | |
d3acc0f7 | 1349 | POPSTACK; |
a0d0e21e LW |
1350 | FREETMPS; |
1351 | LEAVE; | |
79072805 LW |
1352 | return 0; |
1353 | } | |
1354 | ||
1355 | int | |
864dbfa3 | 1356 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1357 | { |
1358 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1359 | } |
a0d0e21e LW |
1360 | |
1361 | int | |
864dbfa3 | 1362 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1363 | { |
1364 | OP *o; | |
1365 | I32 i; | |
1366 | GV* gv; | |
1367 | SV** svp; | |
2d8e6c8d | 1368 | STRLEN n_a; |
79072805 | 1369 | |
3280af22 | 1370 | gv = PL_DBline; |
79072805 | 1371 | i = SvTRUE(sv); |
188ea221 | 1372 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1373 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1374 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1375 | o->op_private = i; |
79072805 LW |
1376 | return 0; |
1377 | } | |
1378 | ||
1379 | int | |
864dbfa3 | 1380 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1381 | { |
3280af22 | 1382 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1383 | return 0; |
1384 | } | |
1385 | ||
1386 | int | |
864dbfa3 | 1387 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1388 | { |
3280af22 | 1389 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1390 | return 0; |
1391 | } | |
1392 | ||
1393 | int | |
864dbfa3 | 1394 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1395 | { |
1396 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1397 | |
a0d0e21e | 1398 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1399 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1400 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1401 | I32 i = mg->mg_len; |
7e2040f0 | 1402 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1403 | sv_pos_b2u(lsv, &i); |
1404 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1405 | return 0; |
1406 | } | |
1407 | } | |
1408 | (void)SvOK_off(sv); | |
1409 | return 0; | |
1410 | } | |
1411 | ||
1412 | int | |
864dbfa3 | 1413 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1414 | { |
1415 | SV* lsv = LvTARG(sv); | |
1416 | SSize_t pos; | |
1417 | STRLEN len; | |
c00206c8 | 1418 | STRLEN ulen = 0; |
a0d0e21e LW |
1419 | |
1420 | mg = 0; | |
ac27b0f5 | 1421 | |
a0d0e21e | 1422 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1423 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1424 | if (!mg) { |
1425 | if (!SvOK(sv)) | |
1426 | return 0; | |
14befaf4 DM |
1427 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1428 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1429 | } |
1430 | else if (!SvOK(sv)) { | |
565764a8 | 1431 | mg->mg_len = -1; |
a0d0e21e LW |
1432 | return 0; |
1433 | } | |
1434 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1435 | ||
c485e607 | 1436 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1437 | |
7e2040f0 | 1438 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1439 | ulen = sv_len_utf8(lsv); |
1440 | if (ulen) | |
1441 | len = ulen; | |
a0ed51b3 LW |
1442 | } |
1443 | ||
a0d0e21e LW |
1444 | if (pos < 0) { |
1445 | pos += len; | |
1446 | if (pos < 0) | |
1447 | pos = 0; | |
1448 | } | |
1449 | else if (pos > len) | |
1450 | pos = len; | |
a0ed51b3 LW |
1451 | |
1452 | if (ulen) { | |
1453 | I32 p = pos; | |
1454 | sv_pos_u2b(lsv, &p, 0); | |
1455 | pos = p; | |
1456 | } | |
1457 | ||
565764a8 | 1458 | mg->mg_len = pos; |
71be2cbc | 1459 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1460 | |
79072805 LW |
1461 | return 0; |
1462 | } | |
1463 | ||
1464 | int | |
864dbfa3 | 1465 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1466 | { |
8646b087 | 1467 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1468 | SvFAKE_off(sv); | |
946ec16e | 1469 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1470 | SvFAKE_on(sv); |
1471 | } | |
1472 | else | |
946ec16e | 1473 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1474 | return 0; |
1475 | } | |
1476 | ||
1477 | int | |
864dbfa3 | 1478 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1479 | { |
1480 | register char *s; | |
1481 | GV* gv; | |
2d8e6c8d | 1482 | STRLEN n_a; |
79072805 LW |
1483 | |
1484 | if (!SvOK(sv)) | |
1485 | return 0; | |
2d8e6c8d | 1486 | s = SvPV(sv, n_a); |
79072805 LW |
1487 | if (*s == '*' && s[1]) |
1488 | s++; | |
85e6fe83 | 1489 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1490 | if (sv == (SV*)gv) |
1491 | return 0; | |
1492 | if (GvGP(sv)) | |
88e89b8a | 1493 | gp_free((GV*)sv); |
79072805 | 1494 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1495 | return 0; |
1496 | } | |
1497 | ||
1498 | int | |
864dbfa3 | 1499 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1500 | { |
1501 | STRLEN len; | |
1502 | SV *lsv = LvTARG(sv); | |
1503 | char *tmps = SvPV(lsv,len); | |
1504 | I32 offs = LvTARGOFF(sv); | |
1505 | I32 rem = LvTARGLEN(sv); | |
1506 | ||
9aa983d2 JH |
1507 | if (SvUTF8(lsv)) |
1508 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1509 | if (offs > len) |
1510 | offs = len; | |
1511 | if (rem + offs > len) | |
1512 | rem = len - offs; | |
1513 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1514 | if (SvUTF8(lsv)) |
2ef4b674 | 1515 | SvUTF8_on(sv); |
6ff81951 GS |
1516 | return 0; |
1517 | } | |
1518 | ||
1519 | int | |
864dbfa3 | 1520 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1521 | { |
9aa983d2 JH |
1522 | STRLEN len; |
1523 | char *tmps = SvPV(sv, len); | |
1524 | SV *lsv = LvTARG(sv); | |
1525 | I32 lvoff = LvTARGOFF(sv); | |
1526 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1527 | |
1aa99e6b | 1528 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1529 | sv_utf8_upgrade(lsv); |
1530 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1531 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1532 | SvUTF8_on(lsv); | |
1533 | } | |
9bf12eaf | 1534 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1535 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1536 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1537 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1538 | Safefree(tmps); | |
1aa99e6b IH |
1539 | } |
1540 | else | |
9aa983d2 | 1541 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1542 | |
79072805 LW |
1543 | return 0; |
1544 | } | |
1545 | ||
1546 | int | |
864dbfa3 | 1547 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1548 | { |
565764a8 | 1549 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1550 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1551 | return 0; |
1552 | } | |
1553 | ||
1554 | int | |
864dbfa3 | 1555 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1556 | { |
3280af22 NIS |
1557 | if (PL_localizing) { |
1558 | if (PL_localizing == 1) | |
565764a8 | 1559 | mg->mg_len <<= 1; |
748a9306 | 1560 | else |
565764a8 | 1561 | mg->mg_len >>= 1; |
a0d0e21e | 1562 | } |
3280af22 | 1563 | else if (PL_tainted) |
565764a8 | 1564 | mg->mg_len |= 1; |
748a9306 | 1565 | else |
565764a8 | 1566 | mg->mg_len &= ~1; |
463ee0b2 LW |
1567 | return 0; |
1568 | } | |
1569 | ||
1570 | int | |
864dbfa3 | 1571 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1572 | { |
1573 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1574 | |
1575 | if (!lsv) { | |
155aba94 | 1576 | (void)SvOK_off(sv); |
6ff81951 GS |
1577 | return 0; |
1578 | } | |
6ff81951 | 1579 | |
81e118e0 | 1580 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1581 | return 0; |
1582 | } | |
1583 | ||
1584 | int | |
864dbfa3 | 1585 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1586 | { |
1587 | do_vecset(sv); /* XXX slurp this routine */ | |
1588 | return 0; | |
1589 | } | |
1590 | ||
1591 | int | |
864dbfa3 | 1592 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1593 | { |
71be2cbc | 1594 | SV *targ = Nullsv; |
5f05dabc | 1595 | if (LvTARGLEN(sv)) { |
68dc0745 | 1596 | if (mg->mg_obj) { |
74e13ce4 GS |
1597 | SV *ahv = LvTARG(sv); |
1598 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1599 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1600 | if (he) | |
1601 | targ = HeVAL(he); | |
1602 | } | |
1603 | else { | |
1604 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1605 | if (svp) | |
1606 | targ = *svp; | |
1607 | } | |
68dc0745 | 1608 | } |
1609 | else { | |
3c78fafa | 1610 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1611 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1612 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1613 | } | |
3280af22 | 1614 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1615 | /* somebody else defined it for us */ |
1616 | SvREFCNT_dec(LvTARG(sv)); | |
1617 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1618 | LvTARGLEN(sv) = 0; | |
1619 | SvREFCNT_dec(mg->mg_obj); | |
1620 | mg->mg_obj = Nullsv; | |
1621 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1622 | } | |
5f05dabc | 1623 | } |
71be2cbc | 1624 | else |
1625 | targ = LvTARG(sv); | |
3280af22 | 1626 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1627 | return 0; |
1628 | } | |
1629 | ||
1630 | int | |
864dbfa3 | 1631 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1632 | { |
1633 | if (LvTARGLEN(sv)) | |
68dc0745 | 1634 | vivify_defelem(sv); |
1635 | if (LvTARG(sv)) { | |
5f05dabc | 1636 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1637 | SvSETMAGIC(LvTARG(sv)); |
1638 | } | |
5f05dabc | 1639 | return 0; |
1640 | } | |
1641 | ||
71be2cbc | 1642 | void |
864dbfa3 | 1643 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1644 | { |
74e13ce4 GS |
1645 | MAGIC *mg; |
1646 | SV *value = Nullsv; | |
71be2cbc | 1647 | |
14befaf4 | 1648 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1649 | return; |
68dc0745 | 1650 | if (mg->mg_obj) { |
74e13ce4 | 1651 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1652 | STRLEN n_a; |
74e13ce4 | 1653 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1654 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1655 | if (he) |
1656 | value = HeVAL(he); | |
1657 | } | |
1658 | else { | |
af7f9c15 | 1659 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1660 | if (svp) |
1661 | value = *svp; | |
1662 | } | |
3280af22 | 1663 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1664 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1665 | } |
68dc0745 | 1666 | else { |
1667 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1668 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1669 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1670 | else { | |
1671 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1672 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1673 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1674 | } |
1675 | } | |
3e3baf6d | 1676 | (void)SvREFCNT_inc(value); |
68dc0745 | 1677 | SvREFCNT_dec(LvTARG(sv)); |
1678 | LvTARG(sv) = value; | |
71be2cbc | 1679 | LvTARGLEN(sv) = 0; |
68dc0745 | 1680 | SvREFCNT_dec(mg->mg_obj); |
1681 | mg->mg_obj = Nullsv; | |
1682 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1683 | } |
1684 | ||
1685 | int | |
864dbfa3 | 1686 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1687 | { |
1688 | AV *av = (AV*)mg->mg_obj; | |
1689 | SV **svp = AvARRAY(av); | |
1690 | I32 i = AvFILLp(av); | |
1691 | while (i >= 0) { | |
1692 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1693 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1694 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1695 | /* XXX Should we check that it hasn't changed? */ |
1696 | SvRV(svp[i]) = 0; | |
155aba94 | 1697 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1698 | SvWEAKREF_off(svp[i]); |
1699 | svp[i] = &PL_sv_undef; | |
1700 | } | |
1701 | i--; | |
1702 | } | |
1703 | return 0; | |
1704 | } | |
1705 | ||
1706 | int | |
864dbfa3 | 1707 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1708 | { |
565764a8 | 1709 | mg->mg_len = -1; |
c6496cc7 | 1710 | SvSCREAM_off(sv); |
93a17b20 LW |
1711 | return 0; |
1712 | } | |
1713 | ||
1714 | int | |
864dbfa3 | 1715 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1716 | { |
14befaf4 | 1717 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1718 | SvVALID_off(sv); |
1719 | return 0; | |
1720 | } | |
1721 | ||
1722 | int | |
864dbfa3 | 1723 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1724 | { |
14befaf4 | 1725 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1726 | SvCOMPILED_off(sv); |
1727 | return 0; | |
1728 | } | |
1729 | ||
1730 | int | |
864dbfa3 | 1731 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1732 | { |
1733 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1734 | ||
1735 | if (uf && uf->uf_set) | |
24f81a43 | 1736 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1737 | return 0; |
1738 | } | |
1739 | ||
c277df42 | 1740 | int |
864dbfa3 | 1741 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1742 | { |
1743 | regexp *re = (regexp *)mg->mg_obj; | |
1744 | ReREFCNT_dec(re); | |
1745 | return 0; | |
1746 | } | |
1747 | ||
7a4c00b4 | 1748 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1749 | int |
864dbfa3 | 1750 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1751 | { |
1752 | /* | |
838b5b74 | 1753 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1754 | * and vanished with a faint plop. |
1755 | */ | |
7a4c00b4 | 1756 | if (mg->mg_ptr) { |
1757 | Safefree(mg->mg_ptr); | |
1758 | mg->mg_ptr = NULL; | |
565764a8 | 1759 | mg->mg_len = -1; |
7a4c00b4 | 1760 | } |
bbce6d69 | 1761 | return 0; |
1762 | } | |
7a4c00b4 | 1763 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1764 | |
1765 | int | |
864dbfa3 | 1766 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1767 | { |
1768 | register char *s; | |
1769 | I32 i; | |
8990e307 | 1770 | STRLEN len; |
79072805 | 1771 | switch (*mg->mg_ptr) { |
748a9306 | 1772 | case '\001': /* ^A */ |
3280af22 | 1773 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1774 | break; |
49460fe6 NIS |
1775 | case '\003': /* ^C */ |
1776 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1777 | break; | |
1778 | ||
79072805 | 1779 | case '\004': /* ^D */ |
aea4f609 | 1780 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1781 | DEBUG_x(dump_all()); |
1782 | break; | |
28f23441 | 1783 | case '\005': /* ^E */ |
0a378802 | 1784 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 1785 | #ifdef MACOS_TRADITIONAL |
0a378802 | 1786 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1787 | #else |
cd39f2b6 | 1788 | # ifdef VMS |
0a378802 | 1789 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 1790 | # else |
cd39f2b6 | 1791 | # ifdef WIN32 |
0a378802 | 1792 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 1793 | # else |
9fed8b87 | 1794 | # ifdef OS2 |
0a378802 | 1795 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 1796 | # else |
0a378802 JH |
1797 | /* will anyone ever use this? */ |
1798 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1799 | # endif |
048c1ddf IZ |
1800 | # endif |
1801 | # endif | |
22fae026 | 1802 | #endif |
0a378802 JH |
1803 | } |
1804 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
1805 | if (PL_encoding) | |
1806 | sv_setsv(PL_encoding, sv); | |
1807 | else | |
1808 | PL_encoding = newSVsv(sv); | |
1809 | } | |
79072805 | 1810 | case '\006': /* ^F */ |
3280af22 | 1811 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1812 | break; |
a0d0e21e | 1813 | case '\010': /* ^H */ |
3280af22 | 1814 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1815 | break; |
9d116dd7 | 1816 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1817 | if (PL_inplace) |
1818 | Safefree(PL_inplace); | |
79072805 | 1819 | if (SvOK(sv)) |
2d8e6c8d | 1820 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1821 | else |
3280af22 | 1822 | PL_inplace = Nullch; |
79072805 | 1823 | break; |
28f23441 | 1824 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1825 | if (*(mg->mg_ptr+1) == '\0') { |
1826 | if (PL_osname) | |
1827 | Safefree(PL_osname); | |
1828 | if (SvOK(sv)) | |
1829 | PL_osname = savepv(SvPV(sv,len)); | |
1830 | else | |
1831 | PL_osname = Nullch; | |
1832 | } | |
1833 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1834 | if (!PL_compiling.cop_io) | |
1835 | PL_compiling.cop_io = newSVsv(sv); | |
1836 | else | |
1837 | sv_setsv(PL_compiling.cop_io,sv); | |
1838 | } | |
28f23441 | 1839 | break; |
79072805 | 1840 | case '\020': /* ^P */ |
3280af22 | 1841 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1842 | if (PL_perldb && !PL_DBsingle) |
1843 | init_debugger(); | |
79072805 LW |
1844 | break; |
1845 | case '\024': /* ^T */ | |
88e89b8a | 1846 | #ifdef BIG_TIME |
6b88bc9c | 1847 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1848 | #else |
3280af22 | 1849 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1850 | #endif |
79072805 | 1851 | break; |
46487f74 | 1852 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1853 | if (*(mg->mg_ptr+1) == '\0') { |
1854 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1855 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1856 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1857 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1858 | } |
599cee73 | 1859 | } |
0a378802 | 1860 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 1861 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1862 | if (!SvPOK(sv) && PL_localizing) { |
1863 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1864 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1865 | break; |
1866 | } | |
f4fc7782 | 1867 | { |
b5477537 | 1868 | STRLEN len, i; |
d3a7d8c7 | 1869 | int accumulate = 0 ; |
f4fc7782 | 1870 | int any_fatals = 0 ; |
d3a7d8c7 | 1871 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1872 | for (i = 0 ; i < len ; ++i) { |
1873 | accumulate |= ptr[i] ; | |
1874 | any_fatals |= (ptr[i] & 0xAA) ; | |
1875 | } | |
d3a7d8c7 GS |
1876 | if (!accumulate) |
1877 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1878 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1879 | PL_compiling.cop_warnings = pWARN_ALL; | |
1880 | PL_dowarn |= G_WARN_ONCE ; | |
1881 | } | |
d3a7d8c7 GS |
1882 | else { |
1883 | if (specialWARN(PL_compiling.cop_warnings)) | |
1884 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1885 | else | |
1886 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1887 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1888 | PL_dowarn |= G_WARN_ONCE ; | |
1889 | } | |
f4fc7782 | 1890 | |
d3a7d8c7 | 1891 | } |
4438c4b7 | 1892 | } |
971a9dd3 | 1893 | } |
0a378802 | 1894 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
46487f74 | 1895 | PL_widesyscalls = SvTRUE(sv); |
79072805 LW |
1896 | break; |
1897 | case '.': | |
3280af22 NIS |
1898 | if (PL_localizing) { |
1899 | if (PL_localizing == 1) | |
7766f137 | 1900 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1901 | } |
3280af22 NIS |
1902 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1903 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1904 | break; |
1905 | case '^': | |
3280af22 | 1906 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1907 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1908 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1909 | break; |
1910 | case '~': | |
3280af22 | 1911 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1912 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1913 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1914 | break; |
1915 | case '=': | |
3280af22 | 1916 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1917 | break; |
1918 | case '-': | |
3280af22 NIS |
1919 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1920 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1921 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1922 | break; |
1923 | case '%': | |
3280af22 | 1924 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1925 | break; |
1926 | case '|': | |
4b65379b | 1927 | { |
3280af22 | 1928 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
1929 | if(!io) |
1930 | break; | |
4b65379b CS |
1931 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1932 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1933 | else { | |
1934 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1935 | PerlIO *ofp = IoOFP(io); | |
1936 | if (ofp) | |
1937 | (void)PerlIO_flush(ofp); | |
1938 | IoFLAGS(io) |= IOf_FLUSH; | |
1939 | } | |
1940 | } | |
79072805 LW |
1941 | } |
1942 | break; | |
1943 | case '*': | |
463ee0b2 | 1944 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1945 | PL_multiline = (i != 0); |
79072805 LW |
1946 | break; |
1947 | case '/': | |
3280af22 | 1948 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 1949 | PL_rs = newSVsv(sv); |
79072805 LW |
1950 | break; |
1951 | case '\\': | |
7889fe52 NIS |
1952 | if (PL_ors_sv) |
1953 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 1954 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 1955 | PL_ors_sv = newSVsv(sv); |
009c130f | 1956 | } |
e3c19b7b | 1957 | else { |
7889fe52 | 1958 | PL_ors_sv = Nullsv; |
e3c19b7b | 1959 | } |
79072805 LW |
1960 | break; |
1961 | case ',': | |
7889fe52 NIS |
1962 | if (PL_ofs_sv) |
1963 | SvREFCNT_dec(PL_ofs_sv); | |
1964 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1965 | PL_ofs_sv = newSVsv(sv); | |
1966 | } | |
1967 | else { | |
1968 | PL_ofs_sv = Nullsv; | |
1969 | } | |
79072805 LW |
1970 | break; |
1971 | case '#': | |
3280af22 NIS |
1972 | if (PL_ofmt) |
1973 | Safefree(PL_ofmt); | |
2d8e6c8d | 1974 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1975 | break; |
1976 | case '[': | |
3280af22 | 1977 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1978 | break; |
1979 | case '?': | |
ff0cee69 | 1980 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1981 | if (PL_localizing == 2) { |
1982 | PL_statusvalue = LvTARGOFF(sv); | |
1983 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1984 | } |
1985 | else | |
1986 | #endif | |
1987 | #ifdef VMSISH_STATUS | |
1988 | if (VMSISH_STATUS) | |
1989 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1990 | else | |
1991 | #endif | |
1992 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1993 | break; |
1994 | case '!': | |
91487cfc JH |
1995 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
1996 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1997 | break; |
1998 | case '<': | |
3280af22 NIS |
1999 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2000 | if (PL_delaymagic) { | |
2001 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2002 | break; /* don't do magic till later */ |
2003 | } | |
2004 | #ifdef HAS_SETRUID | |
b28d0864 | 2005 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2006 | #else |
2007 | #ifdef HAS_SETREUID | |
3280af22 | 2008 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2009 | #else |
85e6fe83 | 2010 | #ifdef HAS_SETRESUID |
b28d0864 | 2011 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2012 | #else |
b28d0864 NIS |
2013 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2014 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2015 | else { |
d8eceb89 | 2016 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2017 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2018 | } |
79072805 LW |
2019 | #endif |
2020 | #endif | |
85e6fe83 | 2021 | #endif |
d8eceb89 | 2022 | PL_uid = PerlProc_getuid(); |
3280af22 | 2023 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2024 | break; |
2025 | case '>': | |
3280af22 NIS |
2026 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2027 | if (PL_delaymagic) { | |
2028 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2029 | break; /* don't do magic till later */ |
2030 | } | |
2031 | #ifdef HAS_SETEUID | |
3280af22 | 2032 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2033 | #else |
2034 | #ifdef HAS_SETREUID | |
b28d0864 | 2035 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2036 | #else |
2037 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2038 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2039 | #else |
b28d0864 NIS |
2040 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2041 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2042 | else { |
e8ee3774 | 2043 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2044 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2045 | } |
79072805 LW |
2046 | #endif |
2047 | #endif | |
85e6fe83 | 2048 | #endif |
d8eceb89 | 2049 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2050 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2051 | break; |
2052 | case '(': | |
3280af22 NIS |
2053 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2054 | if (PL_delaymagic) { | |
2055 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2056 | break; /* don't do magic till later */ |
2057 | } | |
2058 | #ifdef HAS_SETRGID | |
b28d0864 | 2059 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2060 | #else |
2061 | #ifdef HAS_SETREGID | |
3280af22 | 2062 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2063 | #else |
2064 | #ifdef HAS_SETRESGID | |
b28d0864 | 2065 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2066 | #else |
b28d0864 NIS |
2067 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2068 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2069 | else { |
d8eceb89 | 2070 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2071 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2072 | } |
79072805 LW |
2073 | #endif |
2074 | #endif | |
85e6fe83 | 2075 | #endif |
d8eceb89 | 2076 | PL_gid = PerlProc_getgid(); |
3280af22 | 2077 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2078 | break; |
2079 | case ')': | |
5cd24f17 | 2080 | #ifdef HAS_SETGROUPS |
2081 | { | |
2d8e6c8d | 2082 | char *p = SvPV(sv, len); |
5cd24f17 | 2083 | Groups_t gary[NGROUPS]; |
2084 | ||
5cd24f17 | 2085 | while (isSPACE(*p)) |
2086 | ++p; | |
2d4389e4 | 2087 | PL_egid = Atol(p); |
5cd24f17 | 2088 | for (i = 0; i < NGROUPS; ++i) { |
2089 | while (*p && !isSPACE(*p)) | |
2090 | ++p; | |
2091 | while (isSPACE(*p)) | |
2092 | ++p; | |
2093 | if (!*p) | |
2094 | break; | |
2d4389e4 | 2095 | gary[i] = Atol(p); |
5cd24f17 | 2096 | } |
8cc95fdb | 2097 | if (i) |
2098 | (void)setgroups(i, gary); | |
5cd24f17 | 2099 | } |
2100 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2101 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2102 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2103 | if (PL_delaymagic) { |
2104 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2105 | break; /* don't do magic till later */ |
2106 | } | |
2107 | #ifdef HAS_SETEGID | |
3280af22 | 2108 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2109 | #else |
2110 | #ifdef HAS_SETREGID | |
b28d0864 | 2111 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2112 | #else |
2113 | #ifdef HAS_SETRESGID | |
b28d0864 | 2114 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2115 | #else |
b28d0864 NIS |
2116 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2117 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2118 | else { |
d8eceb89 | 2119 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2120 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2121 | } |
79072805 LW |
2122 | #endif |
2123 | #endif | |
85e6fe83 | 2124 | #endif |
d8eceb89 | 2125 | PL_egid = PerlProc_getegid(); |
3280af22 | 2126 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2127 | break; |
2128 | case ':': | |
2d8e6c8d | 2129 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2130 | break; |
cd39f2b6 | 2131 | #ifndef MACOS_TRADITIONAL |
79072805 | 2132 | case '0': |
4bc88a62 PS |
2133 | #ifdef HAS_SETPROCTITLE |
2134 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2135 | * show a string from the process struct and provide | |
2136 | * the setproctitle() routine to manipulate that. */ | |
2137 | { | |
2138 | s = SvPV(sv, len); | |
98b76f99 | 2139 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2140 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2141 | * but not the "(perl) suffix from the ps(1) |
2142 | * output, because that's what ps(1) shows if the | |
2143 | * argv[] is modified. */ | |
6f2ad931 | 2144 | setproctitle("-%s", s); |
9aad2c0e | 2145 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2146 | /* This doesn't really work if you assume that |
2147 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2148 | * because in ps(1) output the result will be like | |
2149 | * sprintf("perl: %s (perl)", s) | |
2150 | * I guess this is a security feature: | |
2151 | * one (a user process) cannot get rid of the original name. | |
2152 | * --jhi */ | |
2153 | setproctitle("%s", s); | |
2154 | # endif | |
2155 | } | |
2156 | #endif | |
3280af22 NIS |
2157 | if (!PL_origalen) { |
2158 | s = PL_origargv[0]; | |
79072805 LW |
2159 | s += strlen(s); |
2160 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2161 | for (i = 1; i < PL_origargc; i++) { |
2162 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2163 | #ifdef OS2 |
6b88bc9c | 2164 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2165 | #endif |
fb73857a | 2166 | ) |
379c4362 GS |
2167 | { |
2168 | ++s; | |
2169 | s += strlen(s); /* this one is ok too */ | |
2170 | } | |
fb73857a | 2171 | else |
2172 | break; | |
79072805 | 2173 | } |
bbce6d69 | 2174 | /* can grab env area too? */ |
764df951 | 2175 | if (PL_origenviron && (PL_origenviron[0] == s + 1)) { |
66b1d557 | 2176 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2177 | /* force copy of environment */ |
3280af22 | 2178 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2179 | if (PL_origenviron[i] == s + 1) { |
2180 | ++s; | |
2181 | s += strlen(s); | |
2182 | } | |
fb73857a | 2183 | else |
2184 | break; | |
79072805 | 2185 | } |
3280af22 | 2186 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2187 | } |
a0d0e21e | 2188 | s = SvPV_force(sv,len); |
8990e307 | 2189 | i = len; |
3280af22 NIS |
2190 | if (i >= PL_origalen) { |
2191 | i = PL_origalen; | |
fb73857a | 2192 | /* don't allow system to limit $0 seen by script */ |
2193 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2194 | Copy(s, PL_origargv[0], i, char); |
2195 | s = PL_origargv[0]+i; | |
fb73857a | 2196 | *s = '\0'; |
79072805 LW |
2197 | } |
2198 | else { | |
3280af22 NIS |
2199 | Copy(s, PL_origargv[0], i, char); |
2200 | s = PL_origargv[0]+i; | |
79072805 | 2201 | *s++ = '\0'; |
3280af22 | 2202 | while (++i < PL_origalen) |
8990e307 | 2203 | *s++ = ' '; |
3280af22 NIS |
2204 | s = PL_origargv[0]+i; |
2205 | for (i = 1; i < PL_origargc; i++) | |
2206 | PL_origargv[i] = Nullch; | |
79072805 LW |
2207 | } |
2208 | break; | |
cd39f2b6 | 2209 | #endif |
4d1ff10f | 2210 | #ifdef USE_5005THREADS |
a863c7d1 | 2211 | case '@': |
38a03e6e | 2212 | sv_setsv(thr->errsv, sv); |
a863c7d1 | 2213 | break; |
4d1ff10f | 2214 | #endif /* USE_5005THREADS */ |
79072805 LW |
2215 | } |
2216 | return 0; | |
2217 | } | |
2218 | ||
4d1ff10f | 2219 | #ifdef USE_5005THREADS |
f93b4edd | 2220 | int |
864dbfa3 | 2221 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2222 | { |
b900a521 JH |
2223 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2224 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
a674cc95 | 2225 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd | 2226 | if (MgOWNER(mg)) |
cea2e8a9 | 2227 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2228 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2229 | COND_DESTROY(MgCONDP(mg)); | |
2230 | return 0; | |
2231 | } | |
4d1ff10f | 2232 | #endif /* USE_5005THREADS */ |
f93b4edd | 2233 | |
79072805 | 2234 | I32 |
864dbfa3 | 2235 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2236 | { |
2237 | register char **sigv; | |
2238 | ||
22c35a8c | 2239 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2240 | if (strEQ(sig,*sigv)) |
22c35a8c | 2241 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2242 | #ifdef SIGCLD |
2243 | if (strEQ(sig,"CHLD")) | |
2244 | return SIGCLD; | |
2245 | #endif | |
2246 | #ifdef SIGCHLD | |
2247 | if (strEQ(sig,"CLD")) | |
2248 | return SIGCHLD; | |
2249 | #endif | |
2250 | return 0; | |
2251 | } | |
2252 | ||
df3728a2 | 2253 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2254 | static SV* sig_sv; |
df3728a2 | 2255 | #endif |
84902520 | 2256 | |
ecfc5424 | 2257 | Signal_t |
cea2e8a9 | 2258 | Perl_sighandler(int sig) |
79072805 | 2259 | { |
71d280e3 | 2260 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
acfe0abc | 2261 | dTHXa(PL_curinterp); /* fake TLS, because signals don't do TLS */ |
71d280e3 | 2262 | #else |
cea2e8a9 | 2263 | dTHX; |
71d280e3 | 2264 | #endif |
79072805 | 2265 | dSP; |
00d579c5 | 2266 | GV *gv = Nullgv; |
a0d0e21e | 2267 | HV *st; |
b7953727 | 2268 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2269 | CV *cv = Nullcv; |
533c011a | 2270 | OP *myop = PL_op; |
84902520 | 2271 | U32 flags = 0; |
3280af22 | 2272 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2273 | |
2274 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
acfe0abc | 2275 | PERL_SET_THX(aTHX); /* fake TLS, see above */ |
71d280e3 | 2276 | #endif |
ac27b0f5 | 2277 | |
3280af22 | 2278 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2279 | flags |= 1; |
3280af22 | 2280 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2281 | flags |= 4; |
3280af22 | 2282 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2283 | flags |= 8; |
3280af22 | 2284 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2285 | flags |= 16; |
2286 | ||
22c35a8c | 2287 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2288 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2289 | PL_sig_name[sig]); |
ff0cee69 | 2290 | |
84902520 TB |
2291 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2292 | infinity, so we fix 4 (in fact 5): */ | |
2293 | if (flags & 1) { | |
3280af22 | 2294 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2295 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2296 | } |
ac27b0f5 | 2297 | if (flags & 4) |
3280af22 | 2298 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2299 | if (flags & 8) { |
3280af22 NIS |
2300 | PL_retstack_ix++; |
2301 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2302 | } |
2303 | if (flags & 16) | |
3280af22 | 2304 | PL_scopestack_ix += 1; |
84902520 | 2305 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2306 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2307 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2308 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2309 | |
a0d0e21e | 2310 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2311 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2312 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2313 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2314 | : ((cv && CvGV(cv)) |
2315 | ? GvENAME(CvGV(cv)) | |
2316 | : "__ANON__"))); | |
2317 | goto cleanup; | |
79072805 LW |
2318 | } |
2319 | ||
22c35a8c GS |
2320 | if(PL_psig_name[sig]) { |
2321 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2322 | flags |= 64; |
df3728a2 | 2323 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2324 | sig_sv = sv; |
df3728a2 | 2325 | #endif |
84902520 | 2326 | } else { |
ff0cee69 | 2327 | sv = sv_newmortal(); |
22c35a8c | 2328 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2329 | } |
e336de0d | 2330 | |
e788e7d3 | 2331 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2332 | PUSHMARK(SP); |
79072805 | 2333 | PUSHs(sv); |
79072805 | 2334 | PUTBACK; |
a0d0e21e | 2335 | |
1b266415 | 2336 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2337 | |
d3acc0f7 | 2338 | POPSTACK; |
1b266415 | 2339 | if (SvTRUE(ERRSV)) { |
1d615522 | 2340 | #ifndef PERL_MICRO |
983dbef6 | 2341 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2342 | /* Handler "died", for example to get out of a restart-able read(). |
2343 | * Before we re-do that on its behalf re-enable the signal which was | |
2344 | * blocked by the system when we entered. | |
2345 | */ | |
2346 | sigset_t set; | |
2347 | sigemptyset(&set); | |
2348 | sigaddset(&set,sig); | |
2349 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2350 | #else | |
2351 | /* Not clear if this will work */ | |
2352 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2353 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2354 | #endif |
1d615522 | 2355 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2356 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2357 | } |
00d579c5 | 2358 | cleanup: |
84902520 | 2359 | if (flags & 1) |
3280af22 | 2360 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2361 | if (flags & 4) |
3280af22 | 2362 | PL_markstack_ptr--; |
ac27b0f5 | 2363 | if (flags & 8) |
3280af22 | 2364 | PL_retstack_ix--; |
84902520 | 2365 | if (flags & 16) |
3280af22 | 2366 | PL_scopestack_ix -= 1; |
84902520 TB |
2367 | if (flags & 64) |
2368 | SvREFCNT_dec(sv); | |
533c011a | 2369 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2370 | |
3280af22 NIS |
2371 | PL_Sv = tSv; /* Restore global temporaries. */ |
2372 | PL_Xpv = tXpv; | |
79072805 LW |
2373 | return; |
2374 | } | |
4e35701f NIS |
2375 | |
2376 | ||
51371543 | 2377 | static void |
acfe0abc | 2378 | restore_magic(pTHX_ void *p) |
51371543 | 2379 | { |
48944bdf | 2380 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2381 | SV* sv = mgs->mgs_sv; |
2382 | ||
2383 | if (!sv) | |
2384 | return; | |
2385 | ||
2386 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2387 | { | |
2388 | if (mgs->mgs_flags) | |
2389 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2390 | else | |
2391 | mg_magical(sv); | |
2392 | if (SvGMAGICAL(sv)) | |
2393 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2394 | } | |
2395 | ||
2396 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2397 | ||
2398 | /* If we're still on top of the stack, pop us off. (That condition | |
2399 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2400 | * if it's being called via leave_scope.) | |
2401 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2402 | * may leave alloc gunk on the savestack, and some code | |
2403 | * (e.g. sighandler) doesn't expect that... | |
2404 | */ | |
2405 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2406 | { | |
2407 | I32 popval = SSPOPINT; | |
c76ac1ee | 2408 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2409 | PL_savestack_ix -= 2; |
2410 | popval = SSPOPINT; | |
2411 | assert(popval == SAVEt_ALLOC); | |
2412 | popval = SSPOPINT; | |
2413 | PL_savestack_ix -= popval; | |
2414 | } | |
2415 | ||
2416 | } | |
2417 | ||
2418 | static void | |
acfe0abc | 2419 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2420 | { |
51371543 GS |
2421 | U32 flags = *(U32*)p; |
2422 | ||
2423 | if (flags & 1) | |
2424 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2425 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2426 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2427 | if (flags & 64) |
2428 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2429 | #endif |
51371543 | 2430 | } |