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 '\\': | |
b2ce0fda JH |
784 | if (PL_ors_sv) |
785 | sv_setpv(sv,SvPVX(PL_ors_sv)); | |
79072805 LW |
786 | break; |
787 | case '#': | |
3280af22 | 788 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
789 | break; |
790 | case '!': | |
a5f75d66 | 791 | #ifdef VMS |
65202027 | 792 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 793 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 794 | #else |
88e89b8a | 795 | { |
796 | int saveerrno = errno; | |
65202027 | 797 | sv_setnv(sv, (NV)errno); |
88e89b8a | 798 | #ifdef OS2 |
ed344e4f IZ |
799 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
800 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 801 | else |
a5f75d66 | 802 | #endif |
2304df62 | 803 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 804 | errno = saveerrno; |
805 | } | |
806 | #endif | |
946ec16e | 807 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
808 | break; |
809 | case '<': | |
3280af22 | 810 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
811 | break; |
812 | case '>': | |
3280af22 | 813 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
814 | break; |
815 | case '(': | |
3280af22 | 816 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 817 | #ifdef HAS_GETGROUPS |
785fb66b | 818 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 819 | #endif |
79072805 LW |
820 | goto add_groups; |
821 | case ')': | |
3280af22 | 822 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 823 | #ifdef HAS_GETGROUPS |
785fb66b | 824 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 825 | #endif |
79072805 | 826 | add_groups: |
79072805 | 827 | #ifdef HAS_GETGROUPS |
79072805 | 828 | { |
a0d0e21e | 829 | Groups_t gary[NGROUPS]; |
79072805 | 830 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 831 | while (--i >= 0) |
785fb66b | 832 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
833 | } |
834 | #endif | |
155aba94 | 835 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
836 | break; |
837 | case '*': | |
838 | break; | |
cd39f2b6 | 839 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
840 | case '0': |
841 | break; | |
cd39f2b6 | 842 | #endif |
4d1ff10f | 843 | #ifdef USE_5005THREADS |
a863c7d1 | 844 | case '@': |
38a03e6e | 845 | sv_setsv(sv, thr->errsv); |
a863c7d1 | 846 | break; |
4d1ff10f | 847 | #endif /* USE_5005THREADS */ |
79072805 | 848 | } |
a0d0e21e | 849 | return 0; |
79072805 LW |
850 | } |
851 | ||
852 | int | |
864dbfa3 | 853 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
854 | { |
855 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
856 | ||
857 | if (uf && uf->uf_val) | |
24f81a43 | 858 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
859 | return 0; |
860 | } | |
861 | ||
862 | int | |
864dbfa3 | 863 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
864 | { |
865 | register char *s; | |
88e89b8a | 866 | char *ptr; |
5aabfad6 | 867 | STRLEN len, klen; |
a0d0e21e | 868 | I32 i; |
1e422769 | 869 | |
a0d0e21e | 870 | s = SvPV(sv,len); |
5aabfad6 | 871 | ptr = MgPV(mg,klen); |
88e89b8a | 872 | my_setenv(ptr, s); |
1e422769 | 873 | |
a0d0e21e LW |
874 | #ifdef DYNAMIC_ENV_FETCH |
875 | /* We just undefd an environment var. Is a replacement */ | |
876 | /* waiting in the wings? */ | |
877 | if (!len) { | |
5aabfad6 | 878 | SV **valp; |
6b88bc9c | 879 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 880 | s = SvPV(*valp, len); |
a0d0e21e LW |
881 | } |
882 | #endif | |
1e422769 | 883 | |
39e571d4 | 884 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
885 | /* And you'll never guess what the dog had */ |
886 | /* in its mouth... */ | |
3280af22 | 887 | if (PL_tainting) { |
1e422769 | 888 | MgTAINTEDDIR_off(mg); |
889 | #ifdef VMS | |
5aabfad6 | 890 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 891 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
892 | struct stat sbuf; | |
893 | int i = 0, j = 0; | |
894 | ||
895 | do { /* DCL$PATH may be a search list */ | |
896 | while (1) { /* as may dev portion of any element */ | |
897 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
898 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
899 | cando_by_name(S_IWUSR,0,elt) ) { | |
900 | MgTAINTEDDIR_on(mg); | |
901 | return 0; | |
902 | } | |
903 | } | |
904 | if ((cp = strchr(elt, ':')) != Nullch) | |
905 | *cp = '\0'; | |
906 | if (my_trnlnm(elt, eltbuf, j++)) | |
907 | elt = eltbuf; | |
908 | else | |
909 | break; | |
910 | } | |
911 | j = 0; | |
912 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
913 | } | |
914 | #endif /* VMS */ | |
5aabfad6 | 915 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 916 | char *strend = s + len; |
463ee0b2 LW |
917 | |
918 | while (s < strend) { | |
96827780 | 919 | char tmpbuf[256]; |
1e422769 | 920 | struct stat st; |
96827780 | 921 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 922 | s, strend, ':', &i); |
463ee0b2 | 923 | s++; |
96827780 MB |
924 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
925 | || *tmpbuf != '/' | |
c6ed36e1 | 926 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 927 | MgTAINTEDDIR_on(mg); |
1e422769 | 928 | return 0; |
929 | } | |
463ee0b2 | 930 | } |
79072805 LW |
931 | } |
932 | } | |
39e571d4 | 933 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 934 | |
79072805 LW |
935 | return 0; |
936 | } | |
937 | ||
938 | int | |
864dbfa3 | 939 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 940 | { |
2d8e6c8d GS |
941 | STRLEN n_a; |
942 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
943 | return 0; |
944 | } | |
945 | ||
88e89b8a | 946 | int |
864dbfa3 | 947 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 948 | { |
949 | #if defined(VMS) | |
cea2e8a9 | 950 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 951 | #else |
3280af22 | 952 | if (PL_localizing) { |
fb73857a | 953 | HE* entry; |
2d8e6c8d | 954 | STRLEN n_a; |
fb73857a | 955 | magic_clear_all_env(sv,mg); |
956 | hv_iterinit((HV*)sv); | |
155aba94 | 957 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 958 | I32 keylen; |
959 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 960 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 961 | } |
962 | } | |
963 | #endif | |
964 | return 0; | |
965 | } | |
966 | ||
967 | int | |
864dbfa3 | 968 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 969 | { |
ed79a026 | 970 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 971 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 972 | #else |
df3728a2 | 973 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 GS |
974 | PerlEnv_clearenv(); |
975 | # else | |
052c2dc6 | 976 | # ifdef USE_ENVIRON_ARRAY |
7766f137 | 977 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
978 | I32 i; |
979 | ||
3280af22 | 980 | if (environ == PL_origenviron) |
f2517201 | 981 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
982 | else |
983 | for (i = 0; environ[i]; i++) | |
f2517201 | 984 | safesysfree(environ[i]); |
7766f137 | 985 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 986 | |
66b1d557 HM |
987 | environ[0] = Nullch; |
988 | ||
052c2dc6 JH |
989 | # endif /* USE_ENVIRON_ARRAY */ |
990 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ | |
991 | #endif /* VMS || EPC */ | |
3e3baf6d | 992 | return 0; |
66b1d557 HM |
993 | } |
994 | ||
23ada85b | 995 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
996 | static int sig_ignoring_initted = 0; |
997 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ | |
998 | #endif | |
999 | ||
64ca3a65 | 1000 | #ifndef PERL_MICRO |
66b1d557 | 1001 | int |
864dbfa3 | 1002 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1003 | { |
1004 | I32 i; | |
2d8e6c8d | 1005 | STRLEN n_a; |
88e89b8a | 1006 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1007 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1008 | if (i) { |
22c35a8c GS |
1009 | if(PL_psig_ptr[i]) |
1010 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1011 | else { |
85b332e2 | 1012 | Sighandler_t sigstate; |
23ada85b | 1013 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1014 | if (sig_ignoring_initted && sig_ignoring[i]) |
1015 | sigstate = SIG_IGN; | |
1016 | else | |
1017 | #endif | |
1018 | sigstate = rsignal_state(i); | |
ff68c719 | 1019 | |
88e89b8a | 1020 | /* cache state so we don't fetch it again */ |
ff68c719 | 1021 | if(sigstate == SIG_IGN) |
88e89b8a | 1022 | sv_setpv(sv,"IGNORE"); |
1023 | else | |
3280af22 | 1024 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1025 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1026 | SvTEMP_off(sv); |
1027 | } | |
1028 | } | |
1029 | return 0; | |
1030 | } | |
1031 | int | |
864dbfa3 | 1032 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1033 | { |
1034 | I32 i; | |
2d8e6c8d | 1035 | STRLEN n_a; |
88e89b8a | 1036 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 1037 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1038 | if (i) { |
22c35a8c GS |
1039 | if(PL_psig_ptr[i]) { |
1040 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1041 | PL_psig_ptr[i]=0; | |
88e89b8a | 1042 | } |
22c35a8c GS |
1043 | if(PL_psig_name[i]) { |
1044 | SvREFCNT_dec(PL_psig_name[i]); | |
1045 | PL_psig_name[i]=0; | |
88e89b8a | 1046 | } |
1047 | } | |
1048 | return 0; | |
1049 | } | |
3d37d572 | 1050 | |
0a8e0eff NIS |
1051 | void |
1052 | Perl_raise_signal(pTHX_ int sig) | |
1053 | { | |
1054 | /* Set a flag to say this signal is pending */ | |
1055 | PL_psig_pend[sig]++; | |
1056 | /* And one to say _a_ signal is pending */ | |
1057 | PL_sig_pending = 1; | |
1058 | } | |
1059 | ||
1060 | Signal_t | |
1061 | Perl_csighandler(int sig) | |
1062 | { | |
85b332e2 CL |
1063 | #ifndef PERL_OLD_SIGNALS |
1064 | dTHX; | |
1065 | #endif | |
23ada85b | 1066 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1067 | (void) rsignal(sig, &Perl_csighandler); |
1068 | if (sig_ignoring[sig]) return; | |
1069 | #endif | |
0a8e0eff NIS |
1070 | #ifdef PERL_OLD_SIGNALS |
1071 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1072 | (*PL_sighandlerp)(sig); | |
1073 | #else | |
0a8e0eff NIS |
1074 | Perl_raise_signal(aTHX_ sig); |
1075 | #endif | |
1076 | } | |
1077 | ||
1078 | void | |
1079 | Perl_despatch_signals(pTHX) | |
1080 | { | |
1081 | int sig; | |
1082 | PL_sig_pending = 0; | |
1083 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1084 | if (PL_psig_pend[sig]) { | |
1085 | PL_psig_pend[sig] = 0; | |
1086 | (*PL_sighandlerp)(sig); | |
1087 | } | |
1088 | } | |
1089 | } | |
1090 | ||
85e6fe83 | 1091 | int |
864dbfa3 | 1092 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1093 | { |
1094 | register char *s; | |
1095 | I32 i; | |
b7953727 | 1096 | SV** svp = 0; |
e72dc28c | 1097 | STRLEN len; |
a0d0e21e | 1098 | |
e72dc28c | 1099 | s = MgPV(mg,len); |
748a9306 LW |
1100 | if (*s == '_') { |
1101 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1102 | svp = &PL_diehook; |
748a9306 | 1103 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1104 | svp = &PL_warnhook; |
748a9306 | 1105 | else |
cea2e8a9 | 1106 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1107 | i = 0; |
4633a7c4 LW |
1108 | if (*svp) { |
1109 | SvREFCNT_dec(*svp); | |
1110 | *svp = 0; | |
1111 | } | |
748a9306 LW |
1112 | } |
1113 | else { | |
1114 | i = whichsig(s); /* ...no, a brick */ | |
1115 | if (!i) { | |
e476b1b5 | 1116 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1117 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1118 | return 0; |
1119 | } | |
23ada85b | 1120 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1121 | if (!sig_ignoring_initted) { |
1122 | int j; | |
1123 | for (j = 0; j < SIG_SIZE; j++) sig_ignoring[j] = 0; | |
1124 | sig_ignoring_initted = 1; | |
1125 | } | |
1126 | sig_ignoring[i] = 0; | |
1127 | #endif | |
22c35a8c GS |
1128 | SvREFCNT_dec(PL_psig_name[i]); |
1129 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1130 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1131 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1132 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1133 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1134 | } |
a0d0e21e | 1135 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1136 | if (i) |
0a8e0eff | 1137 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1138 | else |
1139 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1140 | return 0; |
1141 | } | |
e72dc28c | 1142 | s = SvPV_force(sv,len); |
748a9306 | 1143 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1144 | if (i) { |
23ada85b | 1145 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1146 | sig_ignoring[i] = 1; |
1147 | (void)rsignal(i, &Perl_csighandler); | |
1148 | #else | |
ff68c719 | 1149 | (void)rsignal(i, SIG_IGN); |
85b332e2 CL |
1150 | #endif |
1151 | } else | |
748a9306 LW |
1152 | *svp = 0; |
1153 | } | |
1154 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1155 | if (i) | |
ff68c719 | 1156 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1157 | else |
1158 | *svp = 0; | |
1159 | } | |
79072805 | 1160 | else { |
5aabfad6 | 1161 | /* |
1162 | * We should warn if HINT_STRICT_REFS, but without | |
1163 | * access to a known hint bit in a known OP, we can't | |
1164 | * tell whether HINT_STRICT_REFS is in force or not. | |
1165 | */ | |
46fc3d4c | 1166 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1167 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1168 | if (i) |
0a8e0eff | 1169 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1170 | else |
1171 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1172 | } |
1173 | return 0; | |
1174 | } | |
64ca3a65 | 1175 | #endif /* !PERL_MICRO */ |
79072805 LW |
1176 | |
1177 | int | |
864dbfa3 | 1178 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1179 | { |
3280af22 | 1180 | PL_sub_generation++; |
463ee0b2 LW |
1181 | return 0; |
1182 | } | |
1183 | ||
1184 | int | |
864dbfa3 | 1185 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1186 | { |
a0d0e21e | 1187 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1188 | PL_amagic_generation++; |
463ee0b2 | 1189 | |
a0d0e21e LW |
1190 | return 0; |
1191 | } | |
463ee0b2 | 1192 | |
946ec16e | 1193 | int |
864dbfa3 | 1194 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1195 | { |
1196 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1197 | I32 i = 0; |
497b47a8 | 1198 | |
6ff81951 | 1199 | if (hv) { |
497b47a8 JH |
1200 | (void) hv_iterinit(hv); |
1201 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1202 | i = HvKEYS(hv); | |
1203 | else { | |
1204 | while (hv_iternext(hv)) | |
1205 | i++; | |
1206 | } | |
6ff81951 GS |
1207 | } |
1208 | ||
1209 | sv_setiv(sv, (IV)i); | |
1210 | return 0; | |
1211 | } | |
1212 | ||
1213 | int | |
864dbfa3 | 1214 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1215 | { |
1216 | if (LvTARG(sv)) { | |
1217 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1218 | } |
1219 | return 0; | |
ac27b0f5 | 1220 | } |
946ec16e | 1221 | |
e336de0d | 1222 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1223 | STATIC int |
cea2e8a9 | 1224 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1225 | { |
1226 | dSP; | |
463ee0b2 | 1227 | |
924508f0 GS |
1228 | PUSHMARK(SP); |
1229 | EXTEND(SP, n); | |
33c27489 | 1230 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1231 | if (n > 1) { |
93965878 | 1232 | if (mg->mg_ptr) { |
565764a8 | 1233 | if (mg->mg_len >= 0) |
79cb57f6 | 1234 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1235 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1236 | PUSHs((SV*)mg->mg_ptr); |
1237 | } | |
14befaf4 | 1238 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1239 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1240 | } |
1241 | } | |
1242 | if (n > 2) { | |
1243 | PUSHs(val); | |
88e89b8a | 1244 | } |
463ee0b2 LW |
1245 | PUTBACK; |
1246 | ||
864dbfa3 | 1247 | return call_method(meth, flags); |
946ec16e | 1248 | } |
1249 | ||
76e3520e | 1250 | STATIC int |
cea2e8a9 | 1251 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1252 | { |
1253 | dSP; | |
463ee0b2 | 1254 | |
a0d0e21e LW |
1255 | ENTER; |
1256 | SAVETMPS; | |
e788e7d3 | 1257 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1258 | |
33c27489 | 1259 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1260 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1261 | } |
463ee0b2 | 1262 | |
d3acc0f7 | 1263 | POPSTACK; |
a0d0e21e LW |
1264 | FREETMPS; |
1265 | LEAVE; | |
1266 | return 0; | |
1267 | } | |
463ee0b2 | 1268 | |
a0d0e21e | 1269 | int |
864dbfa3 | 1270 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1271 | { |
1272 | magic_methpack(sv,mg,"FETCH"); | |
1273 | if (mg->mg_ptr) | |
1274 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1275 | return 0; |
1276 | } | |
1277 | ||
1278 | int | |
864dbfa3 | 1279 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1280 | { |
1281 | dSP; | |
a60c0954 | 1282 | ENTER; |
e788e7d3 | 1283 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1284 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1285 | POPSTACK; |
a60c0954 | 1286 | LEAVE; |
463ee0b2 LW |
1287 | return 0; |
1288 | } | |
1289 | ||
1290 | int | |
864dbfa3 | 1291 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1292 | { |
a0d0e21e LW |
1293 | return magic_methpack(sv,mg,"DELETE"); |
1294 | } | |
463ee0b2 | 1295 | |
93965878 NIS |
1296 | |
1297 | U32 | |
864dbfa3 | 1298 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1299 | { |
e336de0d | 1300 | dSP; |
93965878 NIS |
1301 | U32 retval = 0; |
1302 | ||
1303 | ENTER; | |
1304 | SAVETMPS; | |
e788e7d3 | 1305 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1306 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1307 | sv = *PL_stack_sp--; |
a60c0954 | 1308 | retval = (U32) SvIV(sv)-1; |
93965878 | 1309 | } |
d3acc0f7 | 1310 | POPSTACK; |
93965878 NIS |
1311 | FREETMPS; |
1312 | LEAVE; | |
1313 | return retval; | |
1314 | } | |
1315 | ||
cea2e8a9 GS |
1316 | int |
1317 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1318 | { |
1319 | dSP; | |
463ee0b2 | 1320 | |
e336de0d | 1321 | ENTER; |
e788e7d3 | 1322 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1323 | PUSHMARK(SP); |
33c27489 | 1324 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1325 | PUTBACK; |
864dbfa3 | 1326 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1327 | POPSTACK; |
a60c0954 | 1328 | LEAVE; |
463ee0b2 LW |
1329 | return 0; |
1330 | } | |
1331 | ||
1332 | int | |
864dbfa3 | 1333 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1334 | { |
463ee0b2 | 1335 | dSP; |
dff6d3cd | 1336 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1337 | |
1338 | ENTER; | |
a0d0e21e | 1339 | SAVETMPS; |
e788e7d3 | 1340 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1341 | PUSHMARK(SP); |
1342 | EXTEND(SP, 2); | |
33c27489 | 1343 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1344 | if (SvOK(key)) |
1345 | PUSHs(key); | |
1346 | PUTBACK; | |
1347 | ||
864dbfa3 | 1348 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1349 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1350 | |
d3acc0f7 | 1351 | POPSTACK; |
a0d0e21e LW |
1352 | FREETMPS; |
1353 | LEAVE; | |
79072805 LW |
1354 | return 0; |
1355 | } | |
1356 | ||
1357 | int | |
864dbfa3 | 1358 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1359 | { |
1360 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1361 | } |
a0d0e21e LW |
1362 | |
1363 | int | |
864dbfa3 | 1364 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1365 | { |
1366 | OP *o; | |
1367 | I32 i; | |
1368 | GV* gv; | |
1369 | SV** svp; | |
2d8e6c8d | 1370 | STRLEN n_a; |
79072805 | 1371 | |
3280af22 | 1372 | gv = PL_DBline; |
79072805 | 1373 | i = SvTRUE(sv); |
188ea221 | 1374 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1375 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1376 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1377 | o->op_private = i; |
79072805 LW |
1378 | return 0; |
1379 | } | |
1380 | ||
1381 | int | |
864dbfa3 | 1382 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1383 | { |
3280af22 | 1384 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1385 | return 0; |
1386 | } | |
1387 | ||
1388 | int | |
864dbfa3 | 1389 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1390 | { |
3280af22 | 1391 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1392 | return 0; |
1393 | } | |
1394 | ||
1395 | int | |
864dbfa3 | 1396 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1397 | { |
1398 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1399 | |
a0d0e21e | 1400 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1401 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1402 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1403 | I32 i = mg->mg_len; |
7e2040f0 | 1404 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1405 | sv_pos_b2u(lsv, &i); |
1406 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1407 | return 0; |
1408 | } | |
1409 | } | |
1410 | (void)SvOK_off(sv); | |
1411 | return 0; | |
1412 | } | |
1413 | ||
1414 | int | |
864dbfa3 | 1415 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1416 | { |
1417 | SV* lsv = LvTARG(sv); | |
1418 | SSize_t pos; | |
1419 | STRLEN len; | |
c00206c8 | 1420 | STRLEN ulen = 0; |
a0d0e21e LW |
1421 | |
1422 | mg = 0; | |
ac27b0f5 | 1423 | |
a0d0e21e | 1424 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1425 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1426 | if (!mg) { |
1427 | if (!SvOK(sv)) | |
1428 | return 0; | |
14befaf4 DM |
1429 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1430 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1431 | } |
1432 | else if (!SvOK(sv)) { | |
565764a8 | 1433 | mg->mg_len = -1; |
a0d0e21e LW |
1434 | return 0; |
1435 | } | |
1436 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1437 | ||
c485e607 | 1438 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1439 | |
7e2040f0 | 1440 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1441 | ulen = sv_len_utf8(lsv); |
1442 | if (ulen) | |
1443 | len = ulen; | |
a0ed51b3 LW |
1444 | } |
1445 | ||
a0d0e21e LW |
1446 | if (pos < 0) { |
1447 | pos += len; | |
1448 | if (pos < 0) | |
1449 | pos = 0; | |
1450 | } | |
1451 | else if (pos > len) | |
1452 | pos = len; | |
a0ed51b3 LW |
1453 | |
1454 | if (ulen) { | |
1455 | I32 p = pos; | |
1456 | sv_pos_u2b(lsv, &p, 0); | |
1457 | pos = p; | |
1458 | } | |
1459 | ||
565764a8 | 1460 | mg->mg_len = pos; |
71be2cbc | 1461 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1462 | |
79072805 LW |
1463 | return 0; |
1464 | } | |
1465 | ||
1466 | int | |
864dbfa3 | 1467 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1468 | { |
8646b087 | 1469 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1470 | SvFAKE_off(sv); | |
946ec16e | 1471 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1472 | SvFAKE_on(sv); |
1473 | } | |
1474 | else | |
946ec16e | 1475 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1476 | return 0; |
1477 | } | |
1478 | ||
1479 | int | |
864dbfa3 | 1480 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1481 | { |
1482 | register char *s; | |
1483 | GV* gv; | |
2d8e6c8d | 1484 | STRLEN n_a; |
79072805 LW |
1485 | |
1486 | if (!SvOK(sv)) | |
1487 | return 0; | |
2d8e6c8d | 1488 | s = SvPV(sv, n_a); |
79072805 LW |
1489 | if (*s == '*' && s[1]) |
1490 | s++; | |
85e6fe83 | 1491 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1492 | if (sv == (SV*)gv) |
1493 | return 0; | |
1494 | if (GvGP(sv)) | |
88e89b8a | 1495 | gp_free((GV*)sv); |
79072805 | 1496 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1497 | return 0; |
1498 | } | |
1499 | ||
1500 | int | |
864dbfa3 | 1501 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1502 | { |
1503 | STRLEN len; | |
1504 | SV *lsv = LvTARG(sv); | |
1505 | char *tmps = SvPV(lsv,len); | |
1506 | I32 offs = LvTARGOFF(sv); | |
1507 | I32 rem = LvTARGLEN(sv); | |
1508 | ||
9aa983d2 JH |
1509 | if (SvUTF8(lsv)) |
1510 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1511 | if (offs > len) |
1512 | offs = len; | |
1513 | if (rem + offs > len) | |
1514 | rem = len - offs; | |
1515 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1516 | if (SvUTF8(lsv)) |
2ef4b674 | 1517 | SvUTF8_on(sv); |
6ff81951 GS |
1518 | return 0; |
1519 | } | |
1520 | ||
1521 | int | |
864dbfa3 | 1522 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1523 | { |
9aa983d2 JH |
1524 | STRLEN len; |
1525 | char *tmps = SvPV(sv, len); | |
1526 | SV *lsv = LvTARG(sv); | |
1527 | I32 lvoff = LvTARGOFF(sv); | |
1528 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1529 | |
1aa99e6b | 1530 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1531 | sv_utf8_upgrade(lsv); |
1532 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1533 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1534 | SvUTF8_on(lsv); | |
1535 | } | |
9bf12eaf | 1536 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1537 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1538 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1539 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1540 | Safefree(tmps); | |
1aa99e6b IH |
1541 | } |
1542 | else | |
9aa983d2 | 1543 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1544 | |
79072805 LW |
1545 | return 0; |
1546 | } | |
1547 | ||
1548 | int | |
864dbfa3 | 1549 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1550 | { |
565764a8 | 1551 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1552 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1553 | return 0; |
1554 | } | |
1555 | ||
1556 | int | |
864dbfa3 | 1557 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1558 | { |
3280af22 NIS |
1559 | if (PL_localizing) { |
1560 | if (PL_localizing == 1) | |
565764a8 | 1561 | mg->mg_len <<= 1; |
748a9306 | 1562 | else |
565764a8 | 1563 | mg->mg_len >>= 1; |
a0d0e21e | 1564 | } |
3280af22 | 1565 | else if (PL_tainted) |
565764a8 | 1566 | mg->mg_len |= 1; |
748a9306 | 1567 | else |
565764a8 | 1568 | mg->mg_len &= ~1; |
463ee0b2 LW |
1569 | return 0; |
1570 | } | |
1571 | ||
1572 | int | |
864dbfa3 | 1573 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1574 | { |
1575 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1576 | |
1577 | if (!lsv) { | |
155aba94 | 1578 | (void)SvOK_off(sv); |
6ff81951 GS |
1579 | return 0; |
1580 | } | |
6ff81951 | 1581 | |
81e118e0 | 1582 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1583 | return 0; |
1584 | } | |
1585 | ||
1586 | int | |
864dbfa3 | 1587 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1588 | { |
1589 | do_vecset(sv); /* XXX slurp this routine */ | |
1590 | return 0; | |
1591 | } | |
1592 | ||
1593 | int | |
864dbfa3 | 1594 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1595 | { |
71be2cbc | 1596 | SV *targ = Nullsv; |
5f05dabc | 1597 | if (LvTARGLEN(sv)) { |
68dc0745 | 1598 | if (mg->mg_obj) { |
74e13ce4 GS |
1599 | SV *ahv = LvTARG(sv); |
1600 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1601 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1602 | if (he) | |
1603 | targ = HeVAL(he); | |
1604 | } | |
1605 | else { | |
1606 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1607 | if (svp) | |
1608 | targ = *svp; | |
1609 | } | |
68dc0745 | 1610 | } |
1611 | else { | |
3c78fafa | 1612 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1613 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1614 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1615 | } | |
3280af22 | 1616 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1617 | /* somebody else defined it for us */ |
1618 | SvREFCNT_dec(LvTARG(sv)); | |
1619 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1620 | LvTARGLEN(sv) = 0; | |
1621 | SvREFCNT_dec(mg->mg_obj); | |
1622 | mg->mg_obj = Nullsv; | |
1623 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1624 | } | |
5f05dabc | 1625 | } |
71be2cbc | 1626 | else |
1627 | targ = LvTARG(sv); | |
3280af22 | 1628 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1629 | return 0; |
1630 | } | |
1631 | ||
1632 | int | |
864dbfa3 | 1633 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1634 | { |
1635 | if (LvTARGLEN(sv)) | |
68dc0745 | 1636 | vivify_defelem(sv); |
1637 | if (LvTARG(sv)) { | |
5f05dabc | 1638 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1639 | SvSETMAGIC(LvTARG(sv)); |
1640 | } | |
5f05dabc | 1641 | return 0; |
1642 | } | |
1643 | ||
71be2cbc | 1644 | void |
864dbfa3 | 1645 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1646 | { |
74e13ce4 GS |
1647 | MAGIC *mg; |
1648 | SV *value = Nullsv; | |
71be2cbc | 1649 | |
14befaf4 | 1650 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1651 | return; |
68dc0745 | 1652 | if (mg->mg_obj) { |
74e13ce4 | 1653 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1654 | STRLEN n_a; |
74e13ce4 | 1655 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1656 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1657 | if (he) |
1658 | value = HeVAL(he); | |
1659 | } | |
1660 | else { | |
af7f9c15 | 1661 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1662 | if (svp) |
1663 | value = *svp; | |
1664 | } | |
3280af22 | 1665 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1666 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1667 | } |
68dc0745 | 1668 | else { |
1669 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1670 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1671 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1672 | else { | |
1673 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1674 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1675 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1676 | } |
1677 | } | |
3e3baf6d | 1678 | (void)SvREFCNT_inc(value); |
68dc0745 | 1679 | SvREFCNT_dec(LvTARG(sv)); |
1680 | LvTARG(sv) = value; | |
71be2cbc | 1681 | LvTARGLEN(sv) = 0; |
68dc0745 | 1682 | SvREFCNT_dec(mg->mg_obj); |
1683 | mg->mg_obj = Nullsv; | |
1684 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1685 | } |
1686 | ||
1687 | int | |
864dbfa3 | 1688 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1689 | { |
1690 | AV *av = (AV*)mg->mg_obj; | |
1691 | SV **svp = AvARRAY(av); | |
1692 | I32 i = AvFILLp(av); | |
1693 | while (i >= 0) { | |
1694 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1695 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1696 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1697 | /* XXX Should we check that it hasn't changed? */ |
1698 | SvRV(svp[i]) = 0; | |
155aba94 | 1699 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1700 | SvWEAKREF_off(svp[i]); |
1701 | svp[i] = &PL_sv_undef; | |
1702 | } | |
1703 | i--; | |
1704 | } | |
1705 | return 0; | |
1706 | } | |
1707 | ||
1708 | int | |
864dbfa3 | 1709 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1710 | { |
565764a8 | 1711 | mg->mg_len = -1; |
c6496cc7 | 1712 | SvSCREAM_off(sv); |
93a17b20 LW |
1713 | return 0; |
1714 | } | |
1715 | ||
1716 | int | |
864dbfa3 | 1717 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1718 | { |
14befaf4 | 1719 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1720 | SvVALID_off(sv); |
1721 | return 0; | |
1722 | } | |
1723 | ||
1724 | int | |
864dbfa3 | 1725 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1726 | { |
14befaf4 | 1727 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1728 | SvCOMPILED_off(sv); |
1729 | return 0; | |
1730 | } | |
1731 | ||
1732 | int | |
864dbfa3 | 1733 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1734 | { |
1735 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1736 | ||
1737 | if (uf && uf->uf_set) | |
24f81a43 | 1738 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1739 | return 0; |
1740 | } | |
1741 | ||
c277df42 | 1742 | int |
864dbfa3 | 1743 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1744 | { |
1745 | regexp *re = (regexp *)mg->mg_obj; | |
1746 | ReREFCNT_dec(re); | |
1747 | return 0; | |
1748 | } | |
1749 | ||
7a4c00b4 | 1750 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1751 | int |
864dbfa3 | 1752 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1753 | { |
1754 | /* | |
838b5b74 | 1755 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1756 | * and vanished with a faint plop. |
1757 | */ | |
7a4c00b4 | 1758 | if (mg->mg_ptr) { |
1759 | Safefree(mg->mg_ptr); | |
1760 | mg->mg_ptr = NULL; | |
565764a8 | 1761 | mg->mg_len = -1; |
7a4c00b4 | 1762 | } |
bbce6d69 | 1763 | return 0; |
1764 | } | |
7a4c00b4 | 1765 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1766 | |
1767 | int | |
864dbfa3 | 1768 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1769 | { |
1770 | register char *s; | |
1771 | I32 i; | |
8990e307 | 1772 | STRLEN len; |
79072805 | 1773 | switch (*mg->mg_ptr) { |
748a9306 | 1774 | case '\001': /* ^A */ |
3280af22 | 1775 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1776 | break; |
49460fe6 NIS |
1777 | case '\003': /* ^C */ |
1778 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1779 | break; | |
1780 | ||
79072805 | 1781 | case '\004': /* ^D */ |
aea4f609 | 1782 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1783 | DEBUG_x(dump_all()); |
1784 | break; | |
28f23441 | 1785 | case '\005': /* ^E */ |
0a378802 | 1786 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 1787 | #ifdef MACOS_TRADITIONAL |
0a378802 | 1788 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1789 | #else |
cd39f2b6 | 1790 | # ifdef VMS |
0a378802 | 1791 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 1792 | # else |
cd39f2b6 | 1793 | # ifdef WIN32 |
0a378802 | 1794 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 1795 | # else |
9fed8b87 | 1796 | # ifdef OS2 |
0a378802 | 1797 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 1798 | # else |
0a378802 JH |
1799 | /* will anyone ever use this? */ |
1800 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1801 | # endif |
048c1ddf IZ |
1802 | # endif |
1803 | # endif | |
22fae026 | 1804 | #endif |
0a378802 JH |
1805 | } |
1806 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
1807 | if (PL_encoding) | |
1808 | sv_setsv(PL_encoding, sv); | |
1809 | else | |
1810 | PL_encoding = newSVsv(sv); | |
1811 | } | |
79072805 | 1812 | case '\006': /* ^F */ |
3280af22 | 1813 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1814 | break; |
a0d0e21e | 1815 | case '\010': /* ^H */ |
3280af22 | 1816 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1817 | break; |
9d116dd7 | 1818 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1819 | if (PL_inplace) |
1820 | Safefree(PL_inplace); | |
79072805 | 1821 | if (SvOK(sv)) |
2d8e6c8d | 1822 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1823 | else |
3280af22 | 1824 | PL_inplace = Nullch; |
79072805 | 1825 | break; |
28f23441 | 1826 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1827 | if (*(mg->mg_ptr+1) == '\0') { |
1828 | if (PL_osname) | |
1829 | Safefree(PL_osname); | |
1830 | if (SvOK(sv)) | |
1831 | PL_osname = savepv(SvPV(sv,len)); | |
1832 | else | |
1833 | PL_osname = Nullch; | |
1834 | } | |
1835 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1836 | if (!PL_compiling.cop_io) | |
1837 | PL_compiling.cop_io = newSVsv(sv); | |
1838 | else | |
1839 | sv_setsv(PL_compiling.cop_io,sv); | |
1840 | } | |
28f23441 | 1841 | break; |
79072805 | 1842 | case '\020': /* ^P */ |
3280af22 | 1843 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1844 | if (PL_perldb && !PL_DBsingle) |
1845 | init_debugger(); | |
79072805 LW |
1846 | break; |
1847 | case '\024': /* ^T */ | |
88e89b8a | 1848 | #ifdef BIG_TIME |
6b88bc9c | 1849 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1850 | #else |
3280af22 | 1851 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1852 | #endif |
79072805 | 1853 | break; |
46487f74 | 1854 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1855 | if (*(mg->mg_ptr+1) == '\0') { |
1856 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1857 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1858 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1859 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1860 | } |
599cee73 | 1861 | } |
0a378802 | 1862 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 1863 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1864 | if (!SvPOK(sv) && PL_localizing) { |
1865 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1866 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1867 | break; |
1868 | } | |
f4fc7782 | 1869 | { |
b5477537 | 1870 | STRLEN len, i; |
d3a7d8c7 | 1871 | int accumulate = 0 ; |
f4fc7782 | 1872 | int any_fatals = 0 ; |
d3a7d8c7 | 1873 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1874 | for (i = 0 ; i < len ; ++i) { |
1875 | accumulate |= ptr[i] ; | |
1876 | any_fatals |= (ptr[i] & 0xAA) ; | |
1877 | } | |
d3a7d8c7 GS |
1878 | if (!accumulate) |
1879 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1880 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1881 | PL_compiling.cop_warnings = pWARN_ALL; | |
1882 | PL_dowarn |= G_WARN_ONCE ; | |
1883 | } | |
d3a7d8c7 GS |
1884 | else { |
1885 | if (specialWARN(PL_compiling.cop_warnings)) | |
1886 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1887 | else | |
1888 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1889 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1890 | PL_dowarn |= G_WARN_ONCE ; | |
1891 | } | |
f4fc7782 | 1892 | |
d3a7d8c7 | 1893 | } |
4438c4b7 | 1894 | } |
971a9dd3 | 1895 | } |
0a378802 | 1896 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
46487f74 | 1897 | PL_widesyscalls = SvTRUE(sv); |
79072805 LW |
1898 | break; |
1899 | case '.': | |
3280af22 NIS |
1900 | if (PL_localizing) { |
1901 | if (PL_localizing == 1) | |
7766f137 | 1902 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1903 | } |
3280af22 NIS |
1904 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1905 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1906 | break; |
1907 | case '^': | |
3280af22 | 1908 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1909 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1910 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1911 | break; |
1912 | case '~': | |
3280af22 | 1913 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1914 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1915 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1916 | break; |
1917 | case '=': | |
3280af22 | 1918 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1919 | break; |
1920 | case '-': | |
3280af22 NIS |
1921 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1922 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1923 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1924 | break; |
1925 | case '%': | |
3280af22 | 1926 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1927 | break; |
1928 | case '|': | |
4b65379b | 1929 | { |
3280af22 | 1930 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
1931 | if(!io) |
1932 | break; | |
4b65379b CS |
1933 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1934 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1935 | else { | |
1936 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1937 | PerlIO *ofp = IoOFP(io); | |
1938 | if (ofp) | |
1939 | (void)PerlIO_flush(ofp); | |
1940 | IoFLAGS(io) |= IOf_FLUSH; | |
1941 | } | |
1942 | } | |
79072805 LW |
1943 | } |
1944 | break; | |
1945 | case '*': | |
463ee0b2 | 1946 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1947 | PL_multiline = (i != 0); |
79072805 LW |
1948 | break; |
1949 | case '/': | |
3280af22 | 1950 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 1951 | PL_rs = newSVsv(sv); |
79072805 LW |
1952 | break; |
1953 | case '\\': | |
7889fe52 NIS |
1954 | if (PL_ors_sv) |
1955 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 1956 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 1957 | PL_ors_sv = newSVsv(sv); |
009c130f | 1958 | } |
e3c19b7b | 1959 | else { |
7889fe52 | 1960 | PL_ors_sv = Nullsv; |
e3c19b7b | 1961 | } |
79072805 LW |
1962 | break; |
1963 | case ',': | |
7889fe52 NIS |
1964 | if (PL_ofs_sv) |
1965 | SvREFCNT_dec(PL_ofs_sv); | |
1966 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1967 | PL_ofs_sv = newSVsv(sv); | |
1968 | } | |
1969 | else { | |
1970 | PL_ofs_sv = Nullsv; | |
1971 | } | |
79072805 LW |
1972 | break; |
1973 | case '#': | |
3280af22 NIS |
1974 | if (PL_ofmt) |
1975 | Safefree(PL_ofmt); | |
2d8e6c8d | 1976 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1977 | break; |
1978 | case '[': | |
3280af22 | 1979 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1980 | break; |
1981 | case '?': | |
ff0cee69 | 1982 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1983 | if (PL_localizing == 2) { |
1984 | PL_statusvalue = LvTARGOFF(sv); | |
1985 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1986 | } |
1987 | else | |
1988 | #endif | |
1989 | #ifdef VMSISH_STATUS | |
1990 | if (VMSISH_STATUS) | |
1991 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1992 | else | |
1993 | #endif | |
1994 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1995 | break; |
1996 | case '!': | |
91487cfc JH |
1997 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
1998 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1999 | break; |
2000 | case '<': | |
3280af22 NIS |
2001 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2002 | if (PL_delaymagic) { | |
2003 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2004 | break; /* don't do magic till later */ |
2005 | } | |
2006 | #ifdef HAS_SETRUID | |
b28d0864 | 2007 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2008 | #else |
2009 | #ifdef HAS_SETREUID | |
3280af22 | 2010 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2011 | #else |
85e6fe83 | 2012 | #ifdef HAS_SETRESUID |
b28d0864 | 2013 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2014 | #else |
b28d0864 NIS |
2015 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2016 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2017 | else { |
d8eceb89 | 2018 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2019 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2020 | } |
79072805 LW |
2021 | #endif |
2022 | #endif | |
85e6fe83 | 2023 | #endif |
d8eceb89 | 2024 | PL_uid = PerlProc_getuid(); |
3280af22 | 2025 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2026 | break; |
2027 | case '>': | |
3280af22 NIS |
2028 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2029 | if (PL_delaymagic) { | |
2030 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2031 | break; /* don't do magic till later */ |
2032 | } | |
2033 | #ifdef HAS_SETEUID | |
3280af22 | 2034 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2035 | #else |
2036 | #ifdef HAS_SETREUID | |
b28d0864 | 2037 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2038 | #else |
2039 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2040 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2041 | #else |
b28d0864 NIS |
2042 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2043 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2044 | else { |
e8ee3774 | 2045 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2046 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2047 | } |
79072805 LW |
2048 | #endif |
2049 | #endif | |
85e6fe83 | 2050 | #endif |
d8eceb89 | 2051 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2052 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2053 | break; |
2054 | case '(': | |
3280af22 NIS |
2055 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2056 | if (PL_delaymagic) { | |
2057 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2058 | break; /* don't do magic till later */ |
2059 | } | |
2060 | #ifdef HAS_SETRGID | |
b28d0864 | 2061 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2062 | #else |
2063 | #ifdef HAS_SETREGID | |
3280af22 | 2064 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2065 | #else |
2066 | #ifdef HAS_SETRESGID | |
b28d0864 | 2067 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2068 | #else |
b28d0864 NIS |
2069 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2070 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2071 | else { |
d8eceb89 | 2072 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2073 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2074 | } |
79072805 LW |
2075 | #endif |
2076 | #endif | |
85e6fe83 | 2077 | #endif |
d8eceb89 | 2078 | PL_gid = PerlProc_getgid(); |
3280af22 | 2079 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2080 | break; |
2081 | case ')': | |
5cd24f17 | 2082 | #ifdef HAS_SETGROUPS |
2083 | { | |
2d8e6c8d | 2084 | char *p = SvPV(sv, len); |
5cd24f17 | 2085 | Groups_t gary[NGROUPS]; |
2086 | ||
5cd24f17 | 2087 | while (isSPACE(*p)) |
2088 | ++p; | |
2d4389e4 | 2089 | PL_egid = Atol(p); |
5cd24f17 | 2090 | for (i = 0; i < NGROUPS; ++i) { |
2091 | while (*p && !isSPACE(*p)) | |
2092 | ++p; | |
2093 | while (isSPACE(*p)) | |
2094 | ++p; | |
2095 | if (!*p) | |
2096 | break; | |
2d4389e4 | 2097 | gary[i] = Atol(p); |
5cd24f17 | 2098 | } |
8cc95fdb | 2099 | if (i) |
2100 | (void)setgroups(i, gary); | |
5cd24f17 | 2101 | } |
2102 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2103 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2104 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2105 | if (PL_delaymagic) { |
2106 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2107 | break; /* don't do magic till later */ |
2108 | } | |
2109 | #ifdef HAS_SETEGID | |
3280af22 | 2110 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2111 | #else |
2112 | #ifdef HAS_SETREGID | |
b28d0864 | 2113 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2114 | #else |
2115 | #ifdef HAS_SETRESGID | |
b28d0864 | 2116 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2117 | #else |
b28d0864 NIS |
2118 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2119 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2120 | else { |
d8eceb89 | 2121 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2122 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2123 | } |
79072805 LW |
2124 | #endif |
2125 | #endif | |
85e6fe83 | 2126 | #endif |
d8eceb89 | 2127 | PL_egid = PerlProc_getegid(); |
3280af22 | 2128 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2129 | break; |
2130 | case ':': | |
2d8e6c8d | 2131 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2132 | break; |
cd39f2b6 | 2133 | #ifndef MACOS_TRADITIONAL |
79072805 | 2134 | case '0': |
4bc88a62 PS |
2135 | #ifdef HAS_SETPROCTITLE |
2136 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2137 | * show a string from the process struct and provide | |
2138 | * the setproctitle() routine to manipulate that. */ | |
2139 | { | |
2140 | s = SvPV(sv, len); | |
98b76f99 | 2141 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2142 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2143 | * but not the "(perl) suffix from the ps(1) |
2144 | * output, because that's what ps(1) shows if the | |
2145 | * argv[] is modified. */ | |
6f2ad931 | 2146 | setproctitle("-%s", s); |
9aad2c0e | 2147 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2148 | /* This doesn't really work if you assume that |
2149 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2150 | * because in ps(1) output the result will be like | |
2151 | * sprintf("perl: %s (perl)", s) | |
2152 | * I guess this is a security feature: | |
2153 | * one (a user process) cannot get rid of the original name. | |
2154 | * --jhi */ | |
2155 | setproctitle("%s", s); | |
2156 | # endif | |
2157 | } | |
2158 | #endif | |
3280af22 NIS |
2159 | if (!PL_origalen) { |
2160 | s = PL_origargv[0]; | |
79072805 LW |
2161 | s += strlen(s); |
2162 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2163 | for (i = 1; i < PL_origargc; i++) { |
2164 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2165 | #ifdef OS2 |
6b88bc9c | 2166 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2167 | #endif |
fb73857a | 2168 | ) |
379c4362 GS |
2169 | { |
2170 | ++s; | |
2171 | s += strlen(s); /* this one is ok too */ | |
2172 | } | |
fb73857a | 2173 | else |
2174 | break; | |
79072805 | 2175 | } |
bbce6d69 | 2176 | /* can grab env area too? */ |
764df951 | 2177 | if (PL_origenviron && (PL_origenviron[0] == s + 1)) { |
66b1d557 | 2178 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2179 | /* force copy of environment */ |
3280af22 | 2180 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2181 | if (PL_origenviron[i] == s + 1) { |
2182 | ++s; | |
2183 | s += strlen(s); | |
2184 | } | |
fb73857a | 2185 | else |
2186 | break; | |
79072805 | 2187 | } |
3280af22 | 2188 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2189 | } |
a0d0e21e | 2190 | s = SvPV_force(sv,len); |
8990e307 | 2191 | i = len; |
3280af22 NIS |
2192 | if (i >= PL_origalen) { |
2193 | i = PL_origalen; | |
fb73857a | 2194 | /* don't allow system to limit $0 seen by script */ |
2195 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2196 | Copy(s, PL_origargv[0], i, char); |
2197 | s = PL_origargv[0]+i; | |
fb73857a | 2198 | *s = '\0'; |
79072805 LW |
2199 | } |
2200 | else { | |
3280af22 NIS |
2201 | Copy(s, PL_origargv[0], i, char); |
2202 | s = PL_origargv[0]+i; | |
79072805 | 2203 | *s++ = '\0'; |
3280af22 | 2204 | while (++i < PL_origalen) |
8990e307 | 2205 | *s++ = ' '; |
3280af22 NIS |
2206 | s = PL_origargv[0]+i; |
2207 | for (i = 1; i < PL_origargc; i++) | |
2208 | PL_origargv[i] = Nullch; | |
79072805 LW |
2209 | } |
2210 | break; | |
cd39f2b6 | 2211 | #endif |
4d1ff10f | 2212 | #ifdef USE_5005THREADS |
a863c7d1 | 2213 | case '@': |
38a03e6e | 2214 | sv_setsv(thr->errsv, sv); |
a863c7d1 | 2215 | break; |
4d1ff10f | 2216 | #endif /* USE_5005THREADS */ |
79072805 LW |
2217 | } |
2218 | return 0; | |
2219 | } | |
2220 | ||
4d1ff10f | 2221 | #ifdef USE_5005THREADS |
f93b4edd | 2222 | int |
864dbfa3 | 2223 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2224 | { |
b900a521 JH |
2225 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2226 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
a674cc95 | 2227 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd | 2228 | if (MgOWNER(mg)) |
cea2e8a9 | 2229 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2230 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2231 | COND_DESTROY(MgCONDP(mg)); | |
2232 | return 0; | |
2233 | } | |
4d1ff10f | 2234 | #endif /* USE_5005THREADS */ |
f93b4edd | 2235 | |
79072805 | 2236 | I32 |
864dbfa3 | 2237 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2238 | { |
2239 | register char **sigv; | |
2240 | ||
22c35a8c | 2241 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2242 | if (strEQ(sig,*sigv)) |
22c35a8c | 2243 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2244 | #ifdef SIGCLD |
2245 | if (strEQ(sig,"CHLD")) | |
2246 | return SIGCLD; | |
2247 | #endif | |
2248 | #ifdef SIGCHLD | |
2249 | if (strEQ(sig,"CLD")) | |
2250 | return SIGCHLD; | |
2251 | #endif | |
2252 | return 0; | |
2253 | } | |
2254 | ||
df3728a2 | 2255 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2256 | static SV* sig_sv; |
df3728a2 | 2257 | #endif |
84902520 | 2258 | |
ecfc5424 | 2259 | Signal_t |
cea2e8a9 | 2260 | Perl_sighandler(int sig) |
79072805 | 2261 | { |
71d280e3 | 2262 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
acfe0abc | 2263 | dTHXa(PL_curinterp); /* fake TLS, because signals don't do TLS */ |
71d280e3 | 2264 | #else |
cea2e8a9 | 2265 | dTHX; |
71d280e3 | 2266 | #endif |
79072805 | 2267 | dSP; |
00d579c5 | 2268 | GV *gv = Nullgv; |
a0d0e21e | 2269 | HV *st; |
b7953727 | 2270 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2271 | CV *cv = Nullcv; |
533c011a | 2272 | OP *myop = PL_op; |
84902520 | 2273 | U32 flags = 0; |
3280af22 | 2274 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2275 | |
2276 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
acfe0abc | 2277 | PERL_SET_THX(aTHX); /* fake TLS, see above */ |
71d280e3 | 2278 | #endif |
ac27b0f5 | 2279 | |
3280af22 | 2280 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2281 | flags |= 1; |
3280af22 | 2282 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2283 | flags |= 4; |
3280af22 | 2284 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2285 | flags |= 8; |
3280af22 | 2286 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2287 | flags |= 16; |
2288 | ||
22c35a8c | 2289 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2290 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2291 | PL_sig_name[sig]); |
ff0cee69 | 2292 | |
84902520 TB |
2293 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2294 | infinity, so we fix 4 (in fact 5): */ | |
2295 | if (flags & 1) { | |
3280af22 | 2296 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2297 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2298 | } |
ac27b0f5 | 2299 | if (flags & 4) |
3280af22 | 2300 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2301 | if (flags & 8) { |
3280af22 NIS |
2302 | PL_retstack_ix++; |
2303 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2304 | } |
2305 | if (flags & 16) | |
3280af22 | 2306 | PL_scopestack_ix += 1; |
84902520 | 2307 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2308 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2309 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2310 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2311 | |
a0d0e21e | 2312 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2313 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2314 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2315 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2316 | : ((cv && CvGV(cv)) |
2317 | ? GvENAME(CvGV(cv)) | |
2318 | : "__ANON__"))); | |
2319 | goto cleanup; | |
79072805 LW |
2320 | } |
2321 | ||
22c35a8c GS |
2322 | if(PL_psig_name[sig]) { |
2323 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2324 | flags |= 64; |
df3728a2 | 2325 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2326 | sig_sv = sv; |
df3728a2 | 2327 | #endif |
84902520 | 2328 | } else { |
ff0cee69 | 2329 | sv = sv_newmortal(); |
22c35a8c | 2330 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2331 | } |
e336de0d | 2332 | |
e788e7d3 | 2333 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2334 | PUSHMARK(SP); |
79072805 | 2335 | PUSHs(sv); |
79072805 | 2336 | PUTBACK; |
a0d0e21e | 2337 | |
1b266415 | 2338 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2339 | |
d3acc0f7 | 2340 | POPSTACK; |
1b266415 | 2341 | if (SvTRUE(ERRSV)) { |
1d615522 | 2342 | #ifndef PERL_MICRO |
983dbef6 | 2343 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2344 | /* Handler "died", for example to get out of a restart-able read(). |
2345 | * Before we re-do that on its behalf re-enable the signal which was | |
2346 | * blocked by the system when we entered. | |
2347 | */ | |
2348 | sigset_t set; | |
2349 | sigemptyset(&set); | |
2350 | sigaddset(&set,sig); | |
2351 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2352 | #else | |
2353 | /* Not clear if this will work */ | |
2354 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2355 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2356 | #endif |
1d615522 | 2357 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2358 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2359 | } |
00d579c5 | 2360 | cleanup: |
84902520 | 2361 | if (flags & 1) |
3280af22 | 2362 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2363 | if (flags & 4) |
3280af22 | 2364 | PL_markstack_ptr--; |
ac27b0f5 | 2365 | if (flags & 8) |
3280af22 | 2366 | PL_retstack_ix--; |
84902520 | 2367 | if (flags & 16) |
3280af22 | 2368 | PL_scopestack_ix -= 1; |
84902520 TB |
2369 | if (flags & 64) |
2370 | SvREFCNT_dec(sv); | |
533c011a | 2371 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2372 | |
3280af22 NIS |
2373 | PL_Sv = tSv; /* Restore global temporaries. */ |
2374 | PL_Xpv = tXpv; | |
79072805 LW |
2375 | return; |
2376 | } | |
4e35701f NIS |
2377 | |
2378 | ||
51371543 | 2379 | static void |
acfe0abc | 2380 | restore_magic(pTHX_ void *p) |
51371543 | 2381 | { |
48944bdf | 2382 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2383 | SV* sv = mgs->mgs_sv; |
2384 | ||
2385 | if (!sv) | |
2386 | return; | |
2387 | ||
2388 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2389 | { | |
2390 | if (mgs->mgs_flags) | |
2391 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2392 | else | |
2393 | mg_magical(sv); | |
2394 | if (SvGMAGICAL(sv)) | |
2395 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2396 | } | |
2397 | ||
2398 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2399 | ||
2400 | /* If we're still on top of the stack, pop us off. (That condition | |
2401 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2402 | * if it's being called via leave_scope.) | |
2403 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2404 | * may leave alloc gunk on the savestack, and some code | |
2405 | * (e.g. sighandler) doesn't expect that... | |
2406 | */ | |
2407 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2408 | { | |
2409 | I32 popval = SSPOPINT; | |
c76ac1ee | 2410 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2411 | PL_savestack_ix -= 2; |
2412 | popval = SSPOPINT; | |
2413 | assert(popval == SAVEt_ALLOC); | |
2414 | popval = SSPOPINT; | |
2415 | PL_savestack_ix -= popval; | |
2416 | } | |
2417 | ||
2418 | } | |
2419 | ||
2420 | static void | |
acfe0abc | 2421 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2422 | { |
51371543 GS |
2423 | U32 flags = *(U32*)p; |
2424 | ||
2425 | if (flags & 1) | |
2426 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2427 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2428 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2429 | if (flags & 64) |
2430 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2431 | #endif |
51371543 | 2432 | } |