Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
eb1102fc | 3 | * Copyright (c) 1991-2002, 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 | ||
ccfc67b7 JH |
15 | /* |
16 | =head1 Magical Functions | |
17 | */ | |
18 | ||
79072805 | 19 | #include "EXTERN.h" |
864dbfa3 | 20 | #define PERL_IN_MG_C |
79072805 LW |
21 | #include "perl.h" |
22 | ||
5cd24f17 | 23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 | |
26 | # endif | |
b7953727 JH |
27 | # ifdef I_GRP |
28 | # include <grp.h> | |
29 | # endif | |
188ea221 CS |
30 | #endif |
31 | ||
23ada85b | 32 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 33 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 34 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 35 | #endif |
2e34cc90 | 36 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 | 37 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 CL |
38 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
39 | #endif | |
85b332e2 | 40 | |
acfe0abc GS |
41 | static void restore_magic(pTHX_ void *p); |
42 | static void unwind_handler_stack(pTHX_ void *p); | |
51371543 | 43 | |
c07a80fd | 44 | /* |
45 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
46 | */ | |
47 | ||
48 | struct magic_state { | |
49 | SV* mgs_sv; | |
50 | U32 mgs_flags; | |
455ece5e | 51 | I32 mgs_ss_ix; |
c07a80fd | 52 | }; |
455ece5e | 53 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
54 | |
55 | STATIC void | |
8fb26106 | 56 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 57 | { |
455ece5e | 58 | MGS* mgs; |
c07a80fd | 59 | assert(SvMAGICAL(sv)); |
60 | ||
685f876f | 61 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
62 | |
63 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 64 | mgs->mgs_sv = sv; |
65 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 66 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 67 | |
68 | SvMAGICAL_off(sv); | |
69 | SvREADONLY_off(sv); | |
06759ea0 | 70 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 71 | } |
72 | ||
954c1994 GS |
73 | /* |
74 | =for apidoc mg_magical | |
75 | ||
76 | Turns on the magical status of an SV. See C<sv_magic>. | |
77 | ||
78 | =cut | |
79 | */ | |
80 | ||
8990e307 | 81 | void |
864dbfa3 | 82 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
83 | { |
84 | MAGIC* mg; | |
85 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
86 | MGVTBL* vtbl = mg->mg_virtual; | |
87 | if (vtbl) { | |
2b260de0 | 88 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
89 | SvGMAGICAL_on(sv); |
90 | if (vtbl->svt_set) | |
91 | SvSMAGICAL_on(sv); | |
2b260de0 | 92 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
93 | SvRMAGICAL_on(sv); |
94 | } | |
95 | } | |
96 | } | |
97 | ||
954c1994 GS |
98 | /* |
99 | =for apidoc mg_get | |
100 | ||
101 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
102 | ||
103 | =cut | |
104 | */ | |
105 | ||
79072805 | 106 | int |
864dbfa3 | 107 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 108 | { |
ff76feab AMS |
109 | int new = 0; |
110 | MAGIC *newmg, *head, *cur, *mg; | |
111 | I32 mgs_ix = SSNEW(sizeof(MGS)); | |
463ee0b2 | 112 | |
455ece5e | 113 | save_magic(mgs_ix, sv); |
463ee0b2 | 114 | |
ff76feab AMS |
115 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
116 | list of magic. svt_get() may delete the current entry, add new | |
117 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
118 | ||
119 | newmg = cur = head = mg = SvMAGIC(sv); | |
120 | while (mg) { | |
121 | MGVTBL *vtbl = mg->mg_virtual; | |
122 | ||
2b260de0 | 123 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 124 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
ff76feab AMS |
125 | /* Don't restore the flags for this entry if it was deleted. */ |
126 | if (mg->mg_flags & MGf_GSKIP) | |
127 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 128 | } |
ff76feab AMS |
129 | |
130 | mg = mg->mg_moremagic; | |
131 | ||
132 | if (new) { | |
133 | /* Have we finished with the new entries we saw? Start again | |
134 | where we left off (unless there are more new entries). */ | |
135 | if (mg == head) { | |
136 | new = 0; | |
137 | mg = cur; | |
138 | head = newmg; | |
139 | } | |
140 | } | |
141 | ||
142 | /* Were any new entries added? */ | |
143 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
144 | new = 1; | |
145 | cur = mg; | |
146 | mg = newmg; | |
760ac839 | 147 | } |
79072805 | 148 | } |
463ee0b2 | 149 | |
acfe0abc | 150 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
151 | return 0; |
152 | } | |
153 | ||
954c1994 GS |
154 | /* |
155 | =for apidoc mg_set | |
156 | ||
157 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
158 | ||
159 | =cut | |
160 | */ | |
161 | ||
79072805 | 162 | int |
864dbfa3 | 163 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 164 | { |
8fb26106 | 165 | I32 mgs_ix; |
79072805 | 166 | MAGIC* mg; |
463ee0b2 LW |
167 | MAGIC* nextmg; |
168 | ||
455ece5e AD |
169 | mgs_ix = SSNEW(sizeof(MGS)); |
170 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
171 | |
172 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 173 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 174 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
175 | if (mg->mg_flags & MGf_GSKIP) { |
176 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 177 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 178 | } |
2b260de0 | 179 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 180 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 181 | } |
463ee0b2 | 182 | |
acfe0abc | 183 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
184 | return 0; |
185 | } | |
186 | ||
954c1994 GS |
187 | /* |
188 | =for apidoc mg_length | |
189 | ||
190 | Report on the SV's length. See C<sv_magic>. | |
191 | ||
192 | =cut | |
193 | */ | |
194 | ||
79072805 | 195 | U32 |
864dbfa3 | 196 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
197 | { |
198 | MAGIC* mg; | |
463ee0b2 | 199 | STRLEN len; |
463ee0b2 | 200 | |
79072805 LW |
201 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
202 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 203 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 204 | I32 mgs_ix; |
48e43a1c | 205 | |
455ece5e AD |
206 | mgs_ix = SSNEW(sizeof(MGS)); |
207 | save_magic(mgs_ix, sv); | |
a0d0e21e | 208 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 209 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 210 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
211 | return len; |
212 | } | |
213 | } | |
214 | ||
7719e241 | 215 | if (DO_UTF8(sv)) |
5636d518 DB |
216 | { |
217 | U8 *s = (U8*)SvPV(sv, len); | |
218 | len = Perl_utf8_length(aTHX_ s, s + len); | |
219 | } | |
220 | else | |
221 | (void)SvPV(sv, len); | |
463ee0b2 | 222 | return len; |
79072805 LW |
223 | } |
224 | ||
8fb26106 | 225 | I32 |
864dbfa3 | 226 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
227 | { |
228 | MAGIC* mg; | |
229 | I32 len; | |
ac27b0f5 | 230 | |
93965878 NIS |
231 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
232 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 233 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 234 | I32 mgs_ix; |
455ece5e AD |
235 | |
236 | mgs_ix = SSNEW(sizeof(MGS)); | |
237 | save_magic(mgs_ix, sv); | |
93965878 | 238 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 239 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 240 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
241 | return len; |
242 | } | |
243 | } | |
244 | ||
245 | switch(SvTYPE(sv)) { | |
246 | case SVt_PVAV: | |
247 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
248 | return len; | |
249 | case SVt_PVHV: | |
250 | /* FIXME */ | |
251 | default: | |
cea2e8a9 | 252 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
253 | break; |
254 | } | |
255 | return 0; | |
256 | } | |
257 | ||
954c1994 GS |
258 | /* |
259 | =for apidoc mg_clear | |
260 | ||
261 | Clear something magical that the SV represents. See C<sv_magic>. | |
262 | ||
263 | =cut | |
264 | */ | |
265 | ||
79072805 | 266 | int |
864dbfa3 | 267 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 268 | { |
8fb26106 | 269 | I32 mgs_ix; |
79072805 | 270 | MAGIC* mg; |
463ee0b2 | 271 | |
455ece5e AD |
272 | mgs_ix = SSNEW(sizeof(MGS)); |
273 | save_magic(mgs_ix, sv); | |
463ee0b2 | 274 | |
79072805 LW |
275 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
276 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e | 277 | /* omit GSKIP -- never set here */ |
727405f8 | 278 | |
2b260de0 | 279 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 280 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 281 | } |
463ee0b2 | 282 | |
acfe0abc | 283 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
284 | return 0; |
285 | } | |
286 | ||
954c1994 GS |
287 | /* |
288 | =for apidoc mg_find | |
289 | ||
290 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
291 | ||
292 | =cut | |
293 | */ | |
294 | ||
93a17b20 | 295 | MAGIC* |
864dbfa3 | 296 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
297 | { |
298 | MAGIC* mg; | |
3f8f4626 DC |
299 | if (!sv) |
300 | return 0; | |
93a17b20 LW |
301 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
302 | if (mg->mg_type == type) | |
303 | return mg; | |
304 | } | |
305 | return 0; | |
306 | } | |
307 | ||
954c1994 GS |
308 | /* |
309 | =for apidoc mg_copy | |
310 | ||
311 | Copies the magic from one SV to another. See C<sv_magic>. | |
312 | ||
313 | =cut | |
314 | */ | |
315 | ||
79072805 | 316 | int |
864dbfa3 | 317 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 318 | { |
463ee0b2 | 319 | int count = 0; |
79072805 | 320 | MAGIC* mg; |
463ee0b2 | 321 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 NIS |
322 | MGVTBL* vtbl = mg->mg_virtual; |
323 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ | |
324 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
325 | } | |
326 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 327 | sv_magic(nsv, |
14befaf4 DM |
328 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
329 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
330 | ? sv : mg->mg_obj, | |
33c27489 | 331 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 332 | count++; |
79072805 | 333 | } |
79072805 | 334 | } |
463ee0b2 | 335 | return count; |
79072805 LW |
336 | } |
337 | ||
954c1994 GS |
338 | /* |
339 | =for apidoc mg_free | |
340 | ||
341 | Free any magic storage used by the SV. See C<sv_magic>. | |
342 | ||
343 | =cut | |
344 | */ | |
345 | ||
79072805 | 346 | int |
864dbfa3 | 347 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
348 | { |
349 | MAGIC* mg; | |
350 | MAGIC* moremagic; | |
351 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
352 | MGVTBL* vtbl = mg->mg_virtual; | |
353 | moremagic = mg->mg_moremagic; | |
2b260de0 | 354 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 355 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 356 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 | 357 | if (mg->mg_len > 0) |
88e89b8a | 358 | Safefree(mg->mg_ptr); |
565764a8 | 359 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 360 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 361 | } |
85e6fe83 | 362 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 363 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
364 | Safefree(mg); |
365 | } | |
366 | SvMAGIC(sv) = 0; | |
367 | return 0; | |
368 | } | |
369 | ||
d460ef45 | 370 | |
79072805 LW |
371 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
372 | #include <signal.h> | |
373 | #endif | |
374 | ||
942e002e | 375 | U32 |
864dbfa3 | 376 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 377 | { |
6cef1e77 | 378 | register REGEXP *rx; |
6cef1e77 | 379 | |
aaa362c4 | 380 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
381 | if (mg->mg_obj) /* @+ */ |
382 | return rx->nparens; | |
383 | else /* @- */ | |
384 | return rx->lastparen; | |
385 | } | |
ac27b0f5 | 386 | |
942e002e | 387 | return (U32)-1; |
6cef1e77 IZ |
388 | } |
389 | ||
390 | int | |
864dbfa3 | 391 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 392 | { |
6cef1e77 | 393 | register I32 paren; |
cf93c79d | 394 | register I32 s; |
6cef1e77 IZ |
395 | register I32 i; |
396 | register REGEXP *rx; | |
cf93c79d | 397 | I32 t; |
6cef1e77 | 398 | |
aaa362c4 | 399 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
400 | paren = mg->mg_len; |
401 | if (paren < 0) | |
402 | return 0; | |
403 | if (paren <= rx->nparens && | |
cf93c79d IZ |
404 | (s = rx->startp[paren]) != -1 && |
405 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
406 | { |
407 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 408 | i = t; |
6cef1e77 | 409 | else /* @- */ |
cf93c79d | 410 | i = s; |
727405f8 | 411 | |
53c4c00c | 412 | if (i > 0 && PL_reg_match_utf8) { |
1aa99e6b | 413 | char *b = rx->subbeg; |
0064a8a9 JH |
414 | if (b) |
415 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 416 | } |
0064a8a9 JH |
417 | |
418 | sv_setiv(sv, i); | |
6cef1e77 IZ |
419 | } |
420 | } | |
421 | return 0; | |
422 | } | |
423 | ||
e4b89193 | 424 | int |
a29d06ed MG |
425 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
426 | { | |
a29d06ed | 427 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
428 | /* NOT REACHED */ |
429 | return 0; | |
a29d06ed MG |
430 | } |
431 | ||
93a17b20 | 432 | U32 |
864dbfa3 | 433 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
434 | { |
435 | register I32 paren; | |
93a17b20 | 436 | register I32 i; |
d9f97599 | 437 | register REGEXP *rx; |
a197cbdd | 438 | I32 s1, t1; |
93a17b20 LW |
439 | |
440 | switch (*mg->mg_ptr) { | |
441 | case '1': case '2': case '3': case '4': | |
442 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 443 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 444 | |
ffc61ed2 | 445 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 446 | getparen: |
d9f97599 | 447 | if (paren <= rx->nparens && |
cf93c79d IZ |
448 | (s1 = rx->startp[paren]) != -1 && |
449 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 450 | { |
cf93c79d | 451 | i = t1 - s1; |
a197cbdd | 452 | getlen: |
53c4c00c | 453 | if (i > 0 && PL_reg_match_utf8) { |
ffc61ed2 | 454 | char *s = rx->subbeg + s1; |
a197cbdd | 455 | char *send = rx->subbeg + t1; |
ffc61ed2 | 456 | |
60425c38 JH |
457 | if (is_utf8_string((U8*)s, i)) |
458 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 459 | } |
ffc61ed2 | 460 | if (i < 0) |
0844c848 | 461 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 462 | return i; |
93a17b20 | 463 | } |
235bddc8 NIS |
464 | else { |
465 | if (ckWARN(WARN_UNINITIALIZED)) | |
466 | report_uninit(); | |
467 | } | |
468 | } | |
469 | else { | |
470 | if (ckWARN(WARN_UNINITIALIZED)) | |
471 | report_uninit(); | |
93a17b20 | 472 | } |
748a9306 | 473 | return 0; |
93a17b20 | 474 | case '+': |
aaa362c4 | 475 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 476 | paren = rx->lastparen; |
13f57bf8 CS |
477 | if (paren) |
478 | goto getparen; | |
93a17b20 | 479 | } |
748a9306 | 480 | return 0; |
a01268b5 JH |
481 | case '\016': /* ^N */ |
482 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
483 | paren = rx->lastcloseparen; | |
484 | if (paren) | |
485 | goto getparen; | |
486 | } | |
487 | return 0; | |
93a17b20 | 488 | case '`': |
aaa362c4 | 489 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
490 | if (rx->startp[0] != -1) { |
491 | i = rx->startp[0]; | |
a197cbdd GS |
492 | if (i > 0) { |
493 | s1 = 0; | |
494 | t1 = i; | |
495 | goto getlen; | |
496 | } | |
93a17b20 | 497 | } |
93a17b20 | 498 | } |
748a9306 | 499 | return 0; |
93a17b20 | 500 | case '\'': |
aaa362c4 | 501 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
502 | if (rx->endp[0] != -1) { |
503 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
504 | if (i > 0) { |
505 | s1 = rx->endp[0]; | |
506 | t1 = rx->sublen; | |
507 | goto getlen; | |
508 | } | |
93a17b20 | 509 | } |
93a17b20 | 510 | } |
748a9306 | 511 | return 0; |
93a17b20 LW |
512 | } |
513 | magic_get(sv,mg); | |
2d8e6c8d GS |
514 | if (!SvPOK(sv) && SvNIOK(sv)) { |
515 | STRLEN n_a; | |
516 | sv_2pv(sv, &n_a); | |
517 | } | |
93a17b20 LW |
518 | if (SvPOK(sv)) |
519 | return SvCUR(sv); | |
520 | return 0; | |
521 | } | |
522 | ||
79072805 | 523 | int |
864dbfa3 | 524 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
525 | { |
526 | register I32 paren; | |
527 | register char *s; | |
528 | register I32 i; | |
d9f97599 | 529 | register REGEXP *rx; |
79072805 LW |
530 | |
531 | switch (*mg->mg_ptr) { | |
748a9306 | 532 | case '\001': /* ^A */ |
3280af22 | 533 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 534 | break; |
49460fe6 NIS |
535 | case '\003': /* ^C */ |
536 | sv_setiv(sv, (IV)PL_minus_c); | |
537 | break; | |
538 | ||
79072805 | 539 | case '\004': /* ^D */ |
aea4f609 | 540 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 541 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 542 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 543 | #endif |
79072805 | 544 | break; |
28f23441 | 545 | case '\005': /* ^E */ |
0a378802 | 546 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 547 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
548 | { |
549 | char msg[256]; | |
727405f8 | 550 | |
0a378802 | 551 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 552 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 553 | } |
727405f8 | 554 | #else |
28f23441 | 555 | #ifdef VMS |
0a378802 JH |
556 | { |
557 | # include <descrip.h> | |
558 | # include <starlet.h> | |
559 | char msg[255]; | |
560 | $DESCRIPTOR(msgdsc,msg); | |
561 | sv_setnv(sv,(NV) vaxc$errno); | |
562 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
563 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
564 | else | |
565 | sv_setpv(sv,""); | |
566 | } | |
28f23441 | 567 | #else |
88e89b8a | 568 | #ifdef OS2 |
0a378802 JH |
569 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
570 | sv_setnv(sv, (NV)errno); | |
571 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
572 | } else { | |
573 | if (errno != errno_isOS2) { | |
574 | int tmp = _syserrno(); | |
575 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
576 | Perl_rc = tmp; | |
577 | } | |
578 | sv_setnv(sv, (NV)Perl_rc); | |
579 | sv_setpv(sv, os2error(Perl_rc)); | |
580 | } | |
88e89b8a | 581 | #else |
22fae026 | 582 | #ifdef WIN32 |
0a378802 JH |
583 | { |
584 | DWORD dwErr = GetLastError(); | |
585 | sv_setnv(sv, (NV)dwErr); | |
586 | if (dwErr) | |
587 | { | |
588 | PerlProc_GetOSError(sv, dwErr); | |
589 | } | |
590 | else | |
591 | sv_setpv(sv, ""); | |
592 | SetLastError(dwErr); | |
593 | } | |
22fae026 | 594 | #else |
0a378802 JH |
595 | sv_setnv(sv, (NV)errno); |
596 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
28f23441 | 597 | #endif |
88e89b8a | 598 | #endif |
22fae026 | 599 | #endif |
cd39f2b6 | 600 | #endif |
0a378802 JH |
601 | SvNOK_on(sv); /* what a wonderful hack! */ |
602 | } | |
603 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
604 | sv_setsv(sv, PL_encoding); | |
605 | break; | |
79072805 | 606 | case '\006': /* ^F */ |
3280af22 | 607 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 608 | break; |
a0d0e21e | 609 | case '\010': /* ^H */ |
3280af22 | 610 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 611 | break; |
9d116dd7 | 612 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
613 | if (PL_inplace) |
614 | sv_setpv(sv, PL_inplace); | |
79072805 | 615 | else |
3280af22 | 616 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 617 | break; |
ac27b0f5 NIS |
618 | case '\017': /* ^O & ^OPEN */ |
619 | if (*(mg->mg_ptr+1) == '\0') | |
620 | sv_setpv(sv, PL_osname); | |
621 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
622 | if (!PL_compiling.cop_io) | |
623 | sv_setsv(sv, &PL_sv_undef); | |
624 | else { | |
625 | sv_setsv(sv, PL_compiling.cop_io); | |
626 | } | |
627 | } | |
28f23441 | 628 | break; |
79072805 | 629 | case '\020': /* ^P */ |
3280af22 | 630 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 631 | break; |
fb73857a | 632 | case '\023': /* ^S */ |
d58bf5aa | 633 | { |
3280af22 | 634 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 635 | (void)SvOK_off(sv); |
3280af22 | 636 | else if (PL_in_eval) |
6dc8a9e4 | 637 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
638 | else |
639 | sv_setiv(sv, 0); | |
d58bf5aa | 640 | } |
fb73857a | 641 | break; |
79072805 | 642 | case '\024': /* ^T */ |
7c36658b | 643 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 644 | #ifdef BIG_TIME |
7c36658b | 645 | sv_setnv(sv, PL_basetime); |
88e89b8a | 646 | #else |
7c36658b | 647 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 648 | #endif |
7c36658b MS |
649 | } |
650 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
651 | sv_setiv(sv, PL_tainting); | |
652 | break; | |
46487f74 | 653 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
654 | if (*(mg->mg_ptr+1) == '\0') |
655 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 656 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
657 | if (PL_compiling.cop_warnings == pWARN_NONE || |
658 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
659 | { |
660 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
661 | } | |
d3a7d8c7 | 662 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 663 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 664 | } |
4438c4b7 JH |
665 | else { |
666 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 667 | } |
d3a7d8c7 | 668 | SvPOK_only(sv); |
4438c4b7 | 669 | } |
0a378802 | 670 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
46487f74 | 671 | sv_setiv(sv, (IV)PL_widesyscalls); |
79072805 LW |
672 | break; |
673 | case '1': case '2': case '3': case '4': | |
674 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 675 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
676 | I32 s1, t1; |
677 | ||
a863c7d1 MB |
678 | /* |
679 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
680 | * XXX Does the new way break anything? | |
681 | */ | |
ffc61ed2 | 682 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 683 | getparen: |
d9f97599 | 684 | if (paren <= rx->nparens && |
cf93c79d IZ |
685 | (s1 = rx->startp[paren]) != -1 && |
686 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 687 | { |
cf93c79d IZ |
688 | i = t1 - s1; |
689 | s = rx->subbeg + s1; | |
01ec43d0 | 690 | if (!rx->subbeg) |
c2e66d9e GS |
691 | break; |
692 | ||
13f57bf8 | 693 | getrx: |
748a9306 | 694 | if (i >= 0) { |
b7953727 | 695 | bool was_tainted = FALSE; |
3280af22 NIS |
696 | if (PL_tainting) { |
697 | was_tainted = PL_tainted; | |
698 | PL_tainted = FALSE; | |
13f57bf8 | 699 | } |
cf93c79d | 700 | sv_setpvn(sv, s, i); |
53c4c00c | 701 | if (PL_reg_match_utf8 && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
702 | SvUTF8_on(sv); |
703 | else | |
704 | SvUTF8_off(sv); | |
3280af22 NIS |
705 | if (PL_tainting) |
706 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
707 | break; |
708 | } | |
79072805 | 709 | } |
79072805 | 710 | } |
3280af22 | 711 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
712 | break; |
713 | case '+': | |
aaa362c4 | 714 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 715 | paren = rx->lastparen; |
a0d0e21e LW |
716 | if (paren) |
717 | goto getparen; | |
79072805 | 718 | } |
3280af22 | 719 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 720 | break; |
a01268b5 JH |
721 | case '\016': /* ^N */ |
722 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
723 | paren = rx->lastcloseparen; | |
724 | if (paren) | |
725 | goto getparen; | |
726 | } | |
727 | sv_setsv(sv,&PL_sv_undef); | |
728 | break; | |
79072805 | 729 | case '`': |
aaa362c4 | 730 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
731 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
732 | i = rx->startp[0]; | |
13f57bf8 | 733 | goto getrx; |
79072805 | 734 | } |
79072805 | 735 | } |
3280af22 | 736 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
737 | break; |
738 | case '\'': | |
aaa362c4 | 739 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
740 | if (rx->subbeg && rx->endp[0] != -1) { |
741 | s = rx->subbeg + rx->endp[0]; | |
742 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 743 | goto getrx; |
79072805 | 744 | } |
79072805 | 745 | } |
3280af22 | 746 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
747 | break; |
748 | case '.': | |
749 | #ifndef lint | |
3280af22 | 750 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 751 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
752 | } |
753 | #endif | |
754 | break; | |
755 | case '?': | |
809a5acc | 756 | { |
809a5acc | 757 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 758 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
759 | LvTARGOFF(sv) = PL_statusvalue; |
760 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 761 | #endif |
809a5acc | 762 | } |
79072805 LW |
763 | break; |
764 | case '^': | |
3280af22 | 765 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
766 | if (s) |
767 | sv_setpv(sv,s); | |
768 | else { | |
3280af22 | 769 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
770 | sv_catpv(sv,"_TOP"); |
771 | } | |
772 | break; | |
773 | case '~': | |
3280af22 | 774 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 775 | if (!s) |
3280af22 | 776 | s = GvENAME(PL_defoutgv); |
79072805 LW |
777 | sv_setpv(sv,s); |
778 | break; | |
779 | #ifndef lint | |
780 | case '=': | |
3280af22 | 781 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
782 | break; |
783 | case '-': | |
3280af22 | 784 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
785 | break; |
786 | case '%': | |
3280af22 | 787 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
788 | break; |
789 | #endif | |
790 | case ':': | |
791 | break; | |
792 | case '/': | |
793 | break; | |
794 | case '[': | |
3280af22 | 795 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
796 | break; |
797 | case '|': | |
3280af22 | 798 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
799 | break; |
800 | case ',': | |
79072805 LW |
801 | break; |
802 | case '\\': | |
b2ce0fda JH |
803 | if (PL_ors_sv) |
804 | sv_setpv(sv,SvPVX(PL_ors_sv)); | |
79072805 LW |
805 | break; |
806 | case '#': | |
3280af22 | 807 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
808 | break; |
809 | case '!': | |
a5f75d66 | 810 | #ifdef VMS |
65202027 | 811 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 812 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 813 | #else |
88e89b8a | 814 | { |
815 | int saveerrno = errno; | |
65202027 | 816 | sv_setnv(sv, (NV)errno); |
88e89b8a | 817 | #ifdef OS2 |
ed344e4f IZ |
818 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
819 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 820 | else |
a5f75d66 | 821 | #endif |
2304df62 | 822 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 823 | errno = saveerrno; |
824 | } | |
825 | #endif | |
946ec16e | 826 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
827 | break; |
828 | case '<': | |
3280af22 | 829 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
830 | break; |
831 | case '>': | |
3280af22 | 832 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
833 | break; |
834 | case '(': | |
3280af22 | 835 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 836 | #ifdef HAS_GETGROUPS |
785fb66b | 837 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 838 | #endif |
79072805 LW |
839 | goto add_groups; |
840 | case ')': | |
3280af22 | 841 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 842 | #ifdef HAS_GETGROUPS |
785fb66b | 843 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 844 | #endif |
79072805 | 845 | add_groups: |
79072805 | 846 | #ifdef HAS_GETGROUPS |
79072805 | 847 | { |
a0d0e21e | 848 | Groups_t gary[NGROUPS]; |
79072805 | 849 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 850 | while (--i >= 0) |
785fb66b | 851 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
852 | } |
853 | #endif | |
155aba94 | 854 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
855 | break; |
856 | case '*': | |
857 | break; | |
cd39f2b6 | 858 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
859 | case '0': |
860 | break; | |
cd39f2b6 | 861 | #endif |
4d1ff10f | 862 | #ifdef USE_5005THREADS |
a863c7d1 | 863 | case '@': |
38a03e6e | 864 | sv_setsv(sv, thr->errsv); |
a863c7d1 | 865 | break; |
4d1ff10f | 866 | #endif /* USE_5005THREADS */ |
79072805 | 867 | } |
a0d0e21e | 868 | return 0; |
79072805 LW |
869 | } |
870 | ||
871 | int | |
864dbfa3 | 872 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
873 | { |
874 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
875 | ||
876 | if (uf && uf->uf_val) | |
24f81a43 | 877 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
878 | return 0; |
879 | } | |
880 | ||
881 | int | |
864dbfa3 | 882 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
883 | { |
884 | register char *s; | |
88e89b8a | 885 | char *ptr; |
5aabfad6 | 886 | STRLEN len, klen; |
1e422769 | 887 | |
a0d0e21e | 888 | s = SvPV(sv,len); |
5aabfad6 | 889 | ptr = MgPV(mg,klen); |
88e89b8a | 890 | my_setenv(ptr, s); |
1e422769 | 891 | |
a0d0e21e LW |
892 | #ifdef DYNAMIC_ENV_FETCH |
893 | /* We just undefd an environment var. Is a replacement */ | |
894 | /* waiting in the wings? */ | |
895 | if (!len) { | |
5aabfad6 | 896 | SV **valp; |
6b88bc9c | 897 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 898 | s = SvPV(*valp, len); |
a0d0e21e LW |
899 | } |
900 | #endif | |
1e422769 | 901 | |
39e571d4 | 902 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
903 | /* And you'll never guess what the dog had */ |
904 | /* in its mouth... */ | |
3280af22 | 905 | if (PL_tainting) { |
1e422769 | 906 | MgTAINTEDDIR_off(mg); |
907 | #ifdef VMS | |
5aabfad6 | 908 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 909 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
910 | struct stat sbuf; | |
911 | int i = 0, j = 0; | |
912 | ||
913 | do { /* DCL$PATH may be a search list */ | |
914 | while (1) { /* as may dev portion of any element */ | |
915 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
916 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
917 | cando_by_name(S_IWUSR,0,elt) ) { | |
918 | MgTAINTEDDIR_on(mg); | |
919 | return 0; | |
920 | } | |
921 | } | |
922 | if ((cp = strchr(elt, ':')) != Nullch) | |
923 | *cp = '\0'; | |
924 | if (my_trnlnm(elt, eltbuf, j++)) | |
925 | elt = eltbuf; | |
926 | else | |
927 | break; | |
928 | } | |
929 | j = 0; | |
930 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
931 | } | |
932 | #endif /* VMS */ | |
5aabfad6 | 933 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 934 | char *strend = s + len; |
463ee0b2 LW |
935 | |
936 | while (s < strend) { | |
96827780 | 937 | char tmpbuf[256]; |
1e422769 | 938 | struct stat st; |
5f74f29c | 939 | I32 i; |
96827780 | 940 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 941 | s, strend, ':', &i); |
463ee0b2 | 942 | s++; |
96827780 MB |
943 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
944 | || *tmpbuf != '/' | |
c6ed36e1 | 945 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 946 | MgTAINTEDDIR_on(mg); |
1e422769 | 947 | return 0; |
948 | } | |
463ee0b2 | 949 | } |
79072805 LW |
950 | } |
951 | } | |
39e571d4 | 952 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 953 | |
79072805 LW |
954 | return 0; |
955 | } | |
956 | ||
957 | int | |
864dbfa3 | 958 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 959 | { |
2d8e6c8d GS |
960 | STRLEN n_a; |
961 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
962 | return 0; |
963 | } | |
964 | ||
88e89b8a | 965 | int |
864dbfa3 | 966 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 967 | { |
968 | #if defined(VMS) | |
cea2e8a9 | 969 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 970 | #else |
3280af22 | 971 | if (PL_localizing) { |
fb73857a | 972 | HE* entry; |
2d8e6c8d | 973 | STRLEN n_a; |
fb73857a | 974 | magic_clear_all_env(sv,mg); |
975 | hv_iterinit((HV*)sv); | |
155aba94 | 976 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 977 | I32 keylen; |
978 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 979 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 980 | } |
981 | } | |
982 | #endif | |
983 | return 0; | |
984 | } | |
985 | ||
986 | int | |
864dbfa3 | 987 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 988 | { |
ed79a026 | 989 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 990 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 991 | #else |
df3728a2 | 992 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 GS |
993 | PerlEnv_clearenv(); |
994 | # else | |
052c2dc6 | 995 | # ifdef USE_ENVIRON_ARRAY |
7766f137 | 996 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
997 | I32 i; |
998 | ||
3280af22 | 999 | if (environ == PL_origenviron) |
f2517201 | 1000 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1001 | else |
1002 | for (i = 0; environ[i]; i++) | |
f2517201 | 1003 | safesysfree(environ[i]); |
7766f137 | 1004 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1005 | |
66b1d557 HM |
1006 | environ[0] = Nullch; |
1007 | ||
052c2dc6 JH |
1008 | # endif /* USE_ENVIRON_ARRAY */ |
1009 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ | |
1010 | #endif /* VMS || EPC */ | |
3e3baf6d | 1011 | return 0; |
66b1d557 HM |
1012 | } |
1013 | ||
2e34cc90 CL |
1014 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1015 | static int sig_handlers_initted = 0; | |
1016 | #endif | |
7719e241 | 1017 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1018 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1019 | #endif | |
2e34cc90 CL |
1020 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1021 | static int sig_defaulting[SIG_SIZE]; | |
1022 | #endif | |
85b332e2 | 1023 | |
64ca3a65 | 1024 | #ifndef PERL_MICRO |
66b1d557 | 1025 | int |
864dbfa3 | 1026 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1027 | { |
1028 | I32 i; | |
2d8e6c8d | 1029 | STRLEN n_a; |
88e89b8a | 1030 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1031 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1032 | if (i) { |
22c35a8c GS |
1033 | if(PL_psig_ptr[i]) |
1034 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1035 | else { |
85b332e2 | 1036 | Sighandler_t sigstate; |
2e34cc90 | 1037 | sigstate = rsignal_state(i); |
23ada85b | 1038 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1039 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1040 | #endif | |
1041 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1042 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1043 | #endif |
88e89b8a | 1044 | /* cache state so we don't fetch it again */ |
ff68c719 | 1045 | if(sigstate == SIG_IGN) |
88e89b8a | 1046 | sv_setpv(sv,"IGNORE"); |
1047 | else | |
3280af22 | 1048 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1049 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1050 | SvTEMP_off(sv); |
1051 | } | |
1052 | } | |
1053 | return 0; | |
1054 | } | |
1055 | int | |
864dbfa3 | 1056 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1057 | { |
1058 | I32 i; | |
2d8e6c8d | 1059 | STRLEN n_a; |
88e89b8a | 1060 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 1061 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1062 | if (i) { |
22c35a8c GS |
1063 | if(PL_psig_ptr[i]) { |
1064 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1065 | PL_psig_ptr[i]=0; | |
88e89b8a | 1066 | } |
22c35a8c GS |
1067 | if(PL_psig_name[i]) { |
1068 | SvREFCNT_dec(PL_psig_name[i]); | |
1069 | PL_psig_name[i]=0; | |
88e89b8a | 1070 | } |
1071 | } | |
1072 | return 0; | |
1073 | } | |
3d37d572 | 1074 | |
0a8e0eff NIS |
1075 | void |
1076 | Perl_raise_signal(pTHX_ int sig) | |
1077 | { | |
1078 | /* Set a flag to say this signal is pending */ | |
1079 | PL_psig_pend[sig]++; | |
1080 | /* And one to say _a_ signal is pending */ | |
1081 | PL_sig_pending = 1; | |
1082 | } | |
1083 | ||
1084 | Signal_t | |
1085 | Perl_csighandler(int sig) | |
1086 | { | |
1018e26f NIS |
1087 | #ifdef PERL_GET_SIG_CONTEXT |
1088 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1089 | #else | |
85b332e2 CL |
1090 | dTHX; |
1091 | #endif | |
23ada85b | 1092 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1093 | (void) rsignal(sig, &Perl_csighandler); |
1094 | if (sig_ignoring[sig]) return; | |
1095 | #endif | |
2e34cc90 | 1096 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1097 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1098 | #ifdef KILL_BY_SIGPRC |
1099 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1100 | #else | |
1101 | exit(1); | |
1102 | #endif | |
1103 | #endif | |
1104 | ||
0a8e0eff NIS |
1105 | #ifdef PERL_OLD_SIGNALS |
1106 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1107 | (*PL_sighandlerp)(sig); | |
1108 | #else | |
0a8e0eff NIS |
1109 | Perl_raise_signal(aTHX_ sig); |
1110 | #endif | |
1111 | } | |
1112 | ||
2e34cc90 CL |
1113 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1114 | void | |
1115 | Perl_csighandler_init(void) | |
1116 | { | |
1117 | int sig; | |
1118 | if (sig_handlers_initted) return; | |
1119 | ||
1120 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1121 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1122 | dTHX; |
2e34cc90 CL |
1123 | sig_defaulting[sig] = 1; |
1124 | (void) rsignal(sig, &Perl_csighandler); | |
1125 | #endif | |
1126 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1127 | sig_ignoring[sig] = 0; | |
1128 | #endif | |
1129 | } | |
1130 | sig_handlers_initted = 1; | |
1131 | } | |
1132 | #endif | |
1133 | ||
0a8e0eff NIS |
1134 | void |
1135 | Perl_despatch_signals(pTHX) | |
1136 | { | |
1137 | int sig; | |
1138 | PL_sig_pending = 0; | |
1139 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1140 | if (PL_psig_pend[sig]) { | |
1141 | PL_psig_pend[sig] = 0; | |
1142 | (*PL_sighandlerp)(sig); | |
1143 | } | |
1144 | } | |
1145 | } | |
1146 | ||
85e6fe83 | 1147 | int |
864dbfa3 | 1148 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1149 | { |
1150 | register char *s; | |
1151 | I32 i; | |
b7953727 | 1152 | SV** svp = 0; |
e72dc28c | 1153 | STRLEN len; |
a0d0e21e | 1154 | |
e72dc28c | 1155 | s = MgPV(mg,len); |
748a9306 LW |
1156 | if (*s == '_') { |
1157 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1158 | svp = &PL_diehook; |
748a9306 | 1159 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1160 | svp = &PL_warnhook; |
748a9306 | 1161 | else |
cea2e8a9 | 1162 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1163 | i = 0; |
4633a7c4 LW |
1164 | if (*svp) { |
1165 | SvREFCNT_dec(*svp); | |
1166 | *svp = 0; | |
1167 | } | |
748a9306 LW |
1168 | } |
1169 | else { | |
1170 | i = whichsig(s); /* ...no, a brick */ | |
1171 | if (!i) { | |
e476b1b5 | 1172 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1173 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1174 | return 0; |
1175 | } | |
2e34cc90 CL |
1176 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1177 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1178 | #endif | |
23ada85b | 1179 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1180 | sig_ignoring[i] = 0; |
1181 | #endif | |
2e34cc90 CL |
1182 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1183 | sig_defaulting[i] = 0; | |
1184 | #endif | |
22c35a8c GS |
1185 | SvREFCNT_dec(PL_psig_name[i]); |
1186 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1187 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1188 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1189 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1190 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1191 | } |
a0d0e21e | 1192 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1193 | if (i) |
0a8e0eff | 1194 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1195 | else |
1196 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1197 | return 0; |
1198 | } | |
e72dc28c | 1199 | s = SvPV_force(sv,len); |
748a9306 | 1200 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1201 | if (i) { |
23ada85b | 1202 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1203 | sig_ignoring[i] = 1; |
1204 | (void)rsignal(i, &Perl_csighandler); | |
1205 | #else | |
ff68c719 | 1206 | (void)rsignal(i, SIG_IGN); |
85b332e2 CL |
1207 | #endif |
1208 | } else | |
748a9306 LW |
1209 | *svp = 0; |
1210 | } | |
1211 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1212 | if (i) | |
2e34cc90 CL |
1213 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1214 | { | |
1215 | sig_defaulting[i] = 1; | |
1216 | (void)rsignal(i, &Perl_csighandler); | |
1217 | } | |
1218 | #else | |
ff68c719 | 1219 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1220 | #endif |
748a9306 LW |
1221 | else |
1222 | *svp = 0; | |
1223 | } | |
79072805 | 1224 | else { |
5aabfad6 | 1225 | /* |
1226 | * We should warn if HINT_STRICT_REFS, but without | |
1227 | * access to a known hint bit in a known OP, we can't | |
1228 | * tell whether HINT_STRICT_REFS is in force or not. | |
1229 | */ | |
46fc3d4c | 1230 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1231 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1232 | if (i) |
0a8e0eff | 1233 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1234 | else |
1235 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1236 | } |
1237 | return 0; | |
1238 | } | |
64ca3a65 | 1239 | #endif /* !PERL_MICRO */ |
79072805 LW |
1240 | |
1241 | int | |
864dbfa3 | 1242 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1243 | { |
3280af22 | 1244 | PL_sub_generation++; |
463ee0b2 LW |
1245 | return 0; |
1246 | } | |
1247 | ||
1248 | int | |
864dbfa3 | 1249 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1250 | { |
a0d0e21e | 1251 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1252 | PL_amagic_generation++; |
463ee0b2 | 1253 | |
a0d0e21e LW |
1254 | return 0; |
1255 | } | |
463ee0b2 | 1256 | |
946ec16e | 1257 | int |
864dbfa3 | 1258 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1259 | { |
1260 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1261 | I32 i = 0; |
7719e241 | 1262 | |
6ff81951 | 1263 | if (hv) { |
497b47a8 JH |
1264 | (void) hv_iterinit(hv); |
1265 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1266 | i = HvKEYS(hv); | |
1267 | else { | |
1268 | while (hv_iternext(hv)) | |
1269 | i++; | |
1270 | } | |
6ff81951 GS |
1271 | } |
1272 | ||
1273 | sv_setiv(sv, (IV)i); | |
1274 | return 0; | |
1275 | } | |
1276 | ||
1277 | int | |
864dbfa3 | 1278 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1279 | { |
1280 | if (LvTARG(sv)) { | |
1281 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1282 | } |
1283 | return 0; | |
ac27b0f5 | 1284 | } |
946ec16e | 1285 | |
e336de0d | 1286 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1287 | STATIC int |
cea2e8a9 | 1288 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1289 | { |
1290 | dSP; | |
463ee0b2 | 1291 | |
924508f0 GS |
1292 | PUSHMARK(SP); |
1293 | EXTEND(SP, n); | |
33c27489 | 1294 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1295 | if (n > 1) { |
93965878 | 1296 | if (mg->mg_ptr) { |
565764a8 | 1297 | if (mg->mg_len >= 0) |
79cb57f6 | 1298 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1299 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1300 | PUSHs((SV*)mg->mg_ptr); |
1301 | } | |
14befaf4 | 1302 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1303 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1304 | } |
1305 | } | |
1306 | if (n > 2) { | |
1307 | PUSHs(val); | |
88e89b8a | 1308 | } |
463ee0b2 LW |
1309 | PUTBACK; |
1310 | ||
864dbfa3 | 1311 | return call_method(meth, flags); |
946ec16e | 1312 | } |
1313 | ||
76e3520e | 1314 | STATIC int |
cea2e8a9 | 1315 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1316 | { |
1317 | dSP; | |
463ee0b2 | 1318 | |
a0d0e21e LW |
1319 | ENTER; |
1320 | SAVETMPS; | |
e788e7d3 | 1321 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1322 | |
33c27489 | 1323 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1324 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1325 | } |
463ee0b2 | 1326 | |
d3acc0f7 | 1327 | POPSTACK; |
a0d0e21e LW |
1328 | FREETMPS; |
1329 | LEAVE; | |
1330 | return 0; | |
1331 | } | |
463ee0b2 | 1332 | |
a0d0e21e | 1333 | int |
864dbfa3 | 1334 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1335 | { |
1336 | magic_methpack(sv,mg,"FETCH"); | |
1337 | if (mg->mg_ptr) | |
1338 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1339 | return 0; |
1340 | } | |
1341 | ||
1342 | int | |
864dbfa3 | 1343 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1344 | { |
1345 | dSP; | |
a60c0954 | 1346 | ENTER; |
e788e7d3 | 1347 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1348 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1349 | POPSTACK; |
a60c0954 | 1350 | LEAVE; |
463ee0b2 LW |
1351 | return 0; |
1352 | } | |
1353 | ||
1354 | int | |
864dbfa3 | 1355 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1356 | { |
a0d0e21e LW |
1357 | return magic_methpack(sv,mg,"DELETE"); |
1358 | } | |
463ee0b2 | 1359 | |
93965878 NIS |
1360 | |
1361 | U32 | |
864dbfa3 | 1362 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1363 | { |
e336de0d | 1364 | dSP; |
93965878 NIS |
1365 | U32 retval = 0; |
1366 | ||
1367 | ENTER; | |
1368 | SAVETMPS; | |
e788e7d3 | 1369 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1370 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1371 | sv = *PL_stack_sp--; |
a60c0954 | 1372 | retval = (U32) SvIV(sv)-1; |
93965878 | 1373 | } |
d3acc0f7 | 1374 | POPSTACK; |
93965878 NIS |
1375 | FREETMPS; |
1376 | LEAVE; | |
1377 | return retval; | |
1378 | } | |
1379 | ||
cea2e8a9 GS |
1380 | int |
1381 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1382 | { |
1383 | dSP; | |
463ee0b2 | 1384 | |
e336de0d | 1385 | ENTER; |
e788e7d3 | 1386 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1387 | PUSHMARK(SP); |
33c27489 | 1388 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1389 | PUTBACK; |
864dbfa3 | 1390 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1391 | POPSTACK; |
a60c0954 | 1392 | LEAVE; |
463ee0b2 LW |
1393 | return 0; |
1394 | } | |
1395 | ||
1396 | int | |
864dbfa3 | 1397 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1398 | { |
463ee0b2 | 1399 | dSP; |
dff6d3cd | 1400 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1401 | |
1402 | ENTER; | |
a0d0e21e | 1403 | SAVETMPS; |
e788e7d3 | 1404 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1405 | PUSHMARK(SP); |
1406 | EXTEND(SP, 2); | |
33c27489 | 1407 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1408 | if (SvOK(key)) |
1409 | PUSHs(key); | |
1410 | PUTBACK; | |
1411 | ||
864dbfa3 | 1412 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1413 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1414 | |
d3acc0f7 | 1415 | POPSTACK; |
a0d0e21e LW |
1416 | FREETMPS; |
1417 | LEAVE; | |
79072805 LW |
1418 | return 0; |
1419 | } | |
1420 | ||
1421 | int | |
864dbfa3 | 1422 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1423 | { |
1424 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1425 | } |
a0d0e21e LW |
1426 | |
1427 | int | |
864dbfa3 | 1428 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1429 | { |
1430 | OP *o; | |
1431 | I32 i; | |
1432 | GV* gv; | |
1433 | SV** svp; | |
2d8e6c8d | 1434 | STRLEN n_a; |
79072805 | 1435 | |
3280af22 | 1436 | gv = PL_DBline; |
79072805 | 1437 | i = SvTRUE(sv); |
188ea221 | 1438 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1439 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1440 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1441 | o->op_private = i; |
79072805 LW |
1442 | return 0; |
1443 | } | |
1444 | ||
1445 | int | |
864dbfa3 | 1446 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1447 | { |
3280af22 | 1448 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1449 | return 0; |
1450 | } | |
1451 | ||
1452 | int | |
864dbfa3 | 1453 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1454 | { |
3280af22 | 1455 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1456 | return 0; |
1457 | } | |
1458 | ||
1459 | int | |
864dbfa3 | 1460 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1461 | { |
1462 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1463 | |
a0d0e21e | 1464 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1465 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1466 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1467 | I32 i = mg->mg_len; |
7e2040f0 | 1468 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1469 | sv_pos_b2u(lsv, &i); |
1470 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1471 | return 0; |
1472 | } | |
1473 | } | |
1474 | (void)SvOK_off(sv); | |
1475 | return 0; | |
1476 | } | |
1477 | ||
1478 | int | |
864dbfa3 | 1479 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1480 | { |
1481 | SV* lsv = LvTARG(sv); | |
1482 | SSize_t pos; | |
1483 | STRLEN len; | |
c00206c8 | 1484 | STRLEN ulen = 0; |
a0d0e21e LW |
1485 | |
1486 | mg = 0; | |
ac27b0f5 | 1487 | |
a0d0e21e | 1488 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1489 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1490 | if (!mg) { |
1491 | if (!SvOK(sv)) | |
1492 | return 0; | |
14befaf4 DM |
1493 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1494 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1495 | } |
1496 | else if (!SvOK(sv)) { | |
565764a8 | 1497 | mg->mg_len = -1; |
a0d0e21e LW |
1498 | return 0; |
1499 | } | |
1500 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1501 | ||
c485e607 | 1502 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1503 | |
7e2040f0 | 1504 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1505 | ulen = sv_len_utf8(lsv); |
1506 | if (ulen) | |
1507 | len = ulen; | |
a0ed51b3 LW |
1508 | } |
1509 | ||
a0d0e21e LW |
1510 | if (pos < 0) { |
1511 | pos += len; | |
1512 | if (pos < 0) | |
1513 | pos = 0; | |
1514 | } | |
1515 | else if (pos > len) | |
1516 | pos = len; | |
a0ed51b3 LW |
1517 | |
1518 | if (ulen) { | |
1519 | I32 p = pos; | |
1520 | sv_pos_u2b(lsv, &p, 0); | |
1521 | pos = p; | |
1522 | } | |
727405f8 | 1523 | |
565764a8 | 1524 | mg->mg_len = pos; |
71be2cbc | 1525 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1526 | |
79072805 LW |
1527 | return 0; |
1528 | } | |
1529 | ||
1530 | int | |
864dbfa3 | 1531 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1532 | { |
8646b087 | 1533 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1534 | SvFAKE_off(sv); | |
946ec16e | 1535 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1536 | SvFAKE_on(sv); |
1537 | } | |
1538 | else | |
946ec16e | 1539 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1540 | return 0; |
1541 | } | |
1542 | ||
1543 | int | |
864dbfa3 | 1544 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1545 | { |
1546 | register char *s; | |
1547 | GV* gv; | |
2d8e6c8d | 1548 | STRLEN n_a; |
79072805 LW |
1549 | |
1550 | if (!SvOK(sv)) | |
1551 | return 0; | |
2d8e6c8d | 1552 | s = SvPV(sv, n_a); |
79072805 LW |
1553 | if (*s == '*' && s[1]) |
1554 | s++; | |
85e6fe83 | 1555 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1556 | if (sv == (SV*)gv) |
1557 | return 0; | |
1558 | if (GvGP(sv)) | |
88e89b8a | 1559 | gp_free((GV*)sv); |
79072805 | 1560 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1561 | return 0; |
1562 | } | |
1563 | ||
1564 | int | |
864dbfa3 | 1565 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1566 | { |
1567 | STRLEN len; | |
1568 | SV *lsv = LvTARG(sv); | |
1569 | char *tmps = SvPV(lsv,len); | |
1570 | I32 offs = LvTARGOFF(sv); | |
1571 | I32 rem = LvTARGLEN(sv); | |
1572 | ||
9aa983d2 JH |
1573 | if (SvUTF8(lsv)) |
1574 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1575 | if (offs > len) |
1576 | offs = len; | |
1577 | if (rem + offs > len) | |
1578 | rem = len - offs; | |
1579 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1580 | if (SvUTF8(lsv)) |
2ef4b674 | 1581 | SvUTF8_on(sv); |
6ff81951 GS |
1582 | return 0; |
1583 | } | |
1584 | ||
1585 | int | |
864dbfa3 | 1586 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1587 | { |
9aa983d2 JH |
1588 | STRLEN len; |
1589 | char *tmps = SvPV(sv, len); | |
1590 | SV *lsv = LvTARG(sv); | |
1591 | I32 lvoff = LvTARGOFF(sv); | |
1592 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1593 | |
1aa99e6b | 1594 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1595 | sv_utf8_upgrade(lsv); |
1596 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1597 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1598 | SvUTF8_on(lsv); | |
1599 | } | |
9bf12eaf | 1600 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1601 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1602 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1603 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1604 | Safefree(tmps); | |
1aa99e6b IH |
1605 | } |
1606 | else | |
9aa983d2 | 1607 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1608 | |
79072805 LW |
1609 | return 0; |
1610 | } | |
1611 | ||
1612 | int | |
864dbfa3 | 1613 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1614 | { |
565764a8 | 1615 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1616 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1617 | return 0; |
1618 | } | |
1619 | ||
1620 | int | |
864dbfa3 | 1621 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1622 | { |
3280af22 NIS |
1623 | if (PL_localizing) { |
1624 | if (PL_localizing == 1) | |
565764a8 | 1625 | mg->mg_len <<= 1; |
748a9306 | 1626 | else |
565764a8 | 1627 | mg->mg_len >>= 1; |
a0d0e21e | 1628 | } |
3280af22 | 1629 | else if (PL_tainted) |
565764a8 | 1630 | mg->mg_len |= 1; |
748a9306 | 1631 | else |
565764a8 | 1632 | mg->mg_len &= ~1; |
463ee0b2 LW |
1633 | return 0; |
1634 | } | |
1635 | ||
1636 | int | |
864dbfa3 | 1637 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1638 | { |
1639 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1640 | |
1641 | if (!lsv) { | |
155aba94 | 1642 | (void)SvOK_off(sv); |
6ff81951 GS |
1643 | return 0; |
1644 | } | |
6ff81951 | 1645 | |
81e118e0 | 1646 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1647 | return 0; |
1648 | } | |
1649 | ||
1650 | int | |
864dbfa3 | 1651 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1652 | { |
1653 | do_vecset(sv); /* XXX slurp this routine */ | |
1654 | return 0; | |
1655 | } | |
1656 | ||
1657 | int | |
864dbfa3 | 1658 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1659 | { |
71be2cbc | 1660 | SV *targ = Nullsv; |
5f05dabc | 1661 | if (LvTARGLEN(sv)) { |
68dc0745 | 1662 | if (mg->mg_obj) { |
74e13ce4 GS |
1663 | SV *ahv = LvTARG(sv); |
1664 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1665 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1666 | if (he) | |
1667 | targ = HeVAL(he); | |
1668 | } | |
1669 | else { | |
1670 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1671 | if (svp) | |
1672 | targ = *svp; | |
1673 | } | |
68dc0745 | 1674 | } |
1675 | else { | |
3c78fafa | 1676 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1677 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1678 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1679 | } | |
3280af22 | 1680 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1681 | /* somebody else defined it for us */ |
1682 | SvREFCNT_dec(LvTARG(sv)); | |
1683 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1684 | LvTARGLEN(sv) = 0; | |
1685 | SvREFCNT_dec(mg->mg_obj); | |
1686 | mg->mg_obj = Nullsv; | |
1687 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1688 | } | |
5f05dabc | 1689 | } |
71be2cbc | 1690 | else |
1691 | targ = LvTARG(sv); | |
3280af22 | 1692 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1693 | return 0; |
1694 | } | |
1695 | ||
1696 | int | |
864dbfa3 | 1697 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1698 | { |
1699 | if (LvTARGLEN(sv)) | |
68dc0745 | 1700 | vivify_defelem(sv); |
1701 | if (LvTARG(sv)) { | |
5f05dabc | 1702 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1703 | SvSETMAGIC(LvTARG(sv)); |
1704 | } | |
5f05dabc | 1705 | return 0; |
1706 | } | |
1707 | ||
71be2cbc | 1708 | void |
864dbfa3 | 1709 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1710 | { |
74e13ce4 GS |
1711 | MAGIC *mg; |
1712 | SV *value = Nullsv; | |
71be2cbc | 1713 | |
14befaf4 | 1714 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1715 | return; |
68dc0745 | 1716 | if (mg->mg_obj) { |
74e13ce4 | 1717 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1718 | STRLEN n_a; |
74e13ce4 | 1719 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1720 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1721 | if (he) |
1722 | value = HeVAL(he); | |
1723 | } | |
1724 | else { | |
af7f9c15 | 1725 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1726 | if (svp) |
1727 | value = *svp; | |
1728 | } | |
3280af22 | 1729 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1730 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1731 | } |
68dc0745 | 1732 | else { |
1733 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1734 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1735 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1736 | else { | |
1737 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1738 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1739 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1740 | } |
1741 | } | |
3e3baf6d | 1742 | (void)SvREFCNT_inc(value); |
68dc0745 | 1743 | SvREFCNT_dec(LvTARG(sv)); |
1744 | LvTARG(sv) = value; | |
71be2cbc | 1745 | LvTARGLEN(sv) = 0; |
68dc0745 | 1746 | SvREFCNT_dec(mg->mg_obj); |
1747 | mg->mg_obj = Nullsv; | |
1748 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1749 | } |
1750 | ||
1751 | int | |
864dbfa3 | 1752 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1753 | { |
1754 | AV *av = (AV*)mg->mg_obj; | |
1755 | SV **svp = AvARRAY(av); | |
1756 | I32 i = AvFILLp(av); | |
1757 | while (i >= 0) { | |
1758 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1759 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1760 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1761 | /* XXX Should we check that it hasn't changed? */ |
1762 | SvRV(svp[i]) = 0; | |
155aba94 | 1763 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1764 | SvWEAKREF_off(svp[i]); |
1765 | svp[i] = &PL_sv_undef; | |
1766 | } | |
1767 | i--; | |
1768 | } | |
1769 | return 0; | |
1770 | } | |
1771 | ||
1772 | int | |
864dbfa3 | 1773 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1774 | { |
565764a8 | 1775 | mg->mg_len = -1; |
c6496cc7 | 1776 | SvSCREAM_off(sv); |
93a17b20 LW |
1777 | return 0; |
1778 | } | |
1779 | ||
1780 | int | |
864dbfa3 | 1781 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1782 | { |
14befaf4 | 1783 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1784 | SvVALID_off(sv); |
1785 | return 0; | |
1786 | } | |
1787 | ||
1788 | int | |
864dbfa3 | 1789 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1790 | { |
14befaf4 | 1791 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1792 | SvCOMPILED_off(sv); |
1793 | return 0; | |
1794 | } | |
1795 | ||
1796 | int | |
864dbfa3 | 1797 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1798 | { |
1799 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1800 | ||
1801 | if (uf && uf->uf_set) | |
24f81a43 | 1802 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1803 | return 0; |
1804 | } | |
1805 | ||
c277df42 | 1806 | int |
864dbfa3 | 1807 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1808 | { |
1809 | regexp *re = (regexp *)mg->mg_obj; | |
1810 | ReREFCNT_dec(re); | |
1811 | return 0; | |
1812 | } | |
1813 | ||
7a4c00b4 | 1814 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1815 | int |
864dbfa3 | 1816 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1817 | { |
1818 | /* | |
838b5b74 | 1819 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1820 | * and vanished with a faint plop. |
1821 | */ | |
7a4c00b4 | 1822 | if (mg->mg_ptr) { |
1823 | Safefree(mg->mg_ptr); | |
1824 | mg->mg_ptr = NULL; | |
565764a8 | 1825 | mg->mg_len = -1; |
7a4c00b4 | 1826 | } |
bbce6d69 | 1827 | return 0; |
1828 | } | |
7a4c00b4 | 1829 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1830 | |
1831 | int | |
864dbfa3 | 1832 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1833 | { |
1834 | register char *s; | |
1835 | I32 i; | |
8990e307 | 1836 | STRLEN len; |
79072805 | 1837 | switch (*mg->mg_ptr) { |
748a9306 | 1838 | case '\001': /* ^A */ |
3280af22 | 1839 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1840 | break; |
49460fe6 NIS |
1841 | case '\003': /* ^C */ |
1842 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1843 | break; | |
1844 | ||
79072805 | 1845 | case '\004': /* ^D */ |
aea4f609 | 1846 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1847 | DEBUG_x(dump_all()); |
1848 | break; | |
28f23441 | 1849 | case '\005': /* ^E */ |
0a378802 | 1850 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 1851 | #ifdef MACOS_TRADITIONAL |
0a378802 | 1852 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1853 | #else |
cd39f2b6 | 1854 | # ifdef VMS |
0a378802 | 1855 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 1856 | # else |
cd39f2b6 | 1857 | # ifdef WIN32 |
0a378802 | 1858 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 1859 | # else |
9fed8b87 | 1860 | # ifdef OS2 |
0a378802 | 1861 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 1862 | # else |
0a378802 JH |
1863 | /* will anyone ever use this? */ |
1864 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1865 | # endif |
048c1ddf IZ |
1866 | # endif |
1867 | # endif | |
22fae026 | 1868 | #endif |
0a378802 JH |
1869 | } |
1870 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
1871 | if (PL_encoding) | |
1872 | sv_setsv(PL_encoding, sv); | |
1873 | else | |
1874 | PL_encoding = newSVsv(sv); | |
1875 | } | |
79072805 | 1876 | case '\006': /* ^F */ |
3280af22 | 1877 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1878 | break; |
a0d0e21e | 1879 | case '\010': /* ^H */ |
3280af22 | 1880 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1881 | break; |
9d116dd7 | 1882 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1883 | if (PL_inplace) |
1884 | Safefree(PL_inplace); | |
79072805 | 1885 | if (SvOK(sv)) |
2d8e6c8d | 1886 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1887 | else |
3280af22 | 1888 | PL_inplace = Nullch; |
79072805 | 1889 | break; |
28f23441 | 1890 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1891 | if (*(mg->mg_ptr+1) == '\0') { |
1892 | if (PL_osname) | |
1893 | Safefree(PL_osname); | |
1894 | if (SvOK(sv)) | |
1895 | PL_osname = savepv(SvPV(sv,len)); | |
1896 | else | |
1897 | PL_osname = Nullch; | |
1898 | } | |
1899 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1900 | if (!PL_compiling.cop_io) | |
1901 | PL_compiling.cop_io = newSVsv(sv); | |
1902 | else | |
1903 | sv_setsv(PL_compiling.cop_io,sv); | |
1904 | } | |
28f23441 | 1905 | break; |
79072805 | 1906 | case '\020': /* ^P */ |
3280af22 | 1907 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1908 | if (PL_perldb && !PL_DBsingle) |
1909 | init_debugger(); | |
79072805 LW |
1910 | break; |
1911 | case '\024': /* ^T */ | |
88e89b8a | 1912 | #ifdef BIG_TIME |
6b88bc9c | 1913 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1914 | #else |
3280af22 | 1915 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1916 | #endif |
79072805 | 1917 | break; |
46487f74 | 1918 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1919 | if (*(mg->mg_ptr+1) == '\0') { |
1920 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1921 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1922 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1923 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1924 | } |
599cee73 | 1925 | } |
0a378802 | 1926 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 1927 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1928 | if (!SvPOK(sv) && PL_localizing) { |
1929 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1930 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1931 | break; |
1932 | } | |
f4fc7782 | 1933 | { |
b5477537 | 1934 | STRLEN len, i; |
d3a7d8c7 | 1935 | int accumulate = 0 ; |
f4fc7782 | 1936 | int any_fatals = 0 ; |
d3a7d8c7 | 1937 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1938 | for (i = 0 ; i < len ; ++i) { |
1939 | accumulate |= ptr[i] ; | |
1940 | any_fatals |= (ptr[i] & 0xAA) ; | |
1941 | } | |
d3a7d8c7 GS |
1942 | if (!accumulate) |
1943 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1944 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1945 | PL_compiling.cop_warnings = pWARN_ALL; | |
1946 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 1947 | } |
d3a7d8c7 GS |
1948 | else { |
1949 | if (specialWARN(PL_compiling.cop_warnings)) | |
1950 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1951 | else | |
1952 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1953 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1954 | PL_dowarn |= G_WARN_ONCE ; | |
1955 | } | |
f4fc7782 | 1956 | |
d3a7d8c7 | 1957 | } |
4438c4b7 | 1958 | } |
971a9dd3 | 1959 | } |
0a378802 | 1960 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
46487f74 | 1961 | PL_widesyscalls = SvTRUE(sv); |
79072805 LW |
1962 | break; |
1963 | case '.': | |
3280af22 NIS |
1964 | if (PL_localizing) { |
1965 | if (PL_localizing == 1) | |
7766f137 | 1966 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1967 | } |
3280af22 | 1968 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 1969 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
1970 | break; |
1971 | case '^': | |
3280af22 | 1972 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1973 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1974 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1975 | break; |
1976 | case '~': | |
3280af22 | 1977 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1978 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1979 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1980 | break; |
1981 | case '=': | |
632db599 | 1982 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1983 | break; |
1984 | case '-': | |
632db599 | 1985 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
1986 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1987 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1988 | break; |
1989 | case '%': | |
632db599 | 1990 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1991 | break; |
1992 | case '|': | |
4b65379b | 1993 | { |
3280af22 | 1994 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
1995 | if(!io) |
1996 | break; | |
4b65379b CS |
1997 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1998 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1999 | else { | |
2000 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2001 | PerlIO *ofp = IoOFP(io); | |
2002 | if (ofp) | |
2003 | (void)PerlIO_flush(ofp); | |
2004 | IoFLAGS(io) |= IOf_FLUSH; | |
2005 | } | |
2006 | } | |
79072805 LW |
2007 | } |
2008 | break; | |
2009 | case '*': | |
463ee0b2 | 2010 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 2011 | PL_multiline = (i != 0); |
79072805 LW |
2012 | break; |
2013 | case '/': | |
3280af22 | 2014 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2015 | PL_rs = newSVsv(sv); |
79072805 LW |
2016 | break; |
2017 | case '\\': | |
7889fe52 NIS |
2018 | if (PL_ors_sv) |
2019 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2020 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2021 | PL_ors_sv = newSVsv(sv); |
009c130f | 2022 | } |
e3c19b7b | 2023 | else { |
7889fe52 | 2024 | PL_ors_sv = Nullsv; |
e3c19b7b | 2025 | } |
79072805 LW |
2026 | break; |
2027 | case ',': | |
7889fe52 NIS |
2028 | if (PL_ofs_sv) |
2029 | SvREFCNT_dec(PL_ofs_sv); | |
2030 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2031 | PL_ofs_sv = newSVsv(sv); | |
2032 | } | |
2033 | else { | |
2034 | PL_ofs_sv = Nullsv; | |
2035 | } | |
79072805 LW |
2036 | break; |
2037 | case '#': | |
3280af22 NIS |
2038 | if (PL_ofmt) |
2039 | Safefree(PL_ofmt); | |
2d8e6c8d | 2040 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2041 | break; |
2042 | case '[': | |
3280af22 | 2043 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2044 | break; |
2045 | case '?': | |
ff0cee69 | 2046 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2047 | if (PL_localizing == 2) { |
2048 | PL_statusvalue = LvTARGOFF(sv); | |
2049 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2050 | } |
2051 | else | |
2052 | #endif | |
2053 | #ifdef VMSISH_STATUS | |
2054 | if (VMSISH_STATUS) | |
2055 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2056 | else | |
2057 | #endif | |
2058 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2059 | break; |
2060 | case '!': | |
91487cfc JH |
2061 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
2062 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
2063 | break; |
2064 | case '<': | |
3280af22 NIS |
2065 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2066 | if (PL_delaymagic) { | |
2067 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2068 | break; /* don't do magic till later */ |
2069 | } | |
2070 | #ifdef HAS_SETRUID | |
b28d0864 | 2071 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2072 | #else |
2073 | #ifdef HAS_SETREUID | |
3280af22 | 2074 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2075 | #else |
85e6fe83 | 2076 | #ifdef HAS_SETRESUID |
b28d0864 | 2077 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2078 | #else |
b28d0864 NIS |
2079 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2080 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2081 | else { |
d8eceb89 | 2082 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2083 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2084 | } |
79072805 LW |
2085 | #endif |
2086 | #endif | |
85e6fe83 | 2087 | #endif |
d8eceb89 | 2088 | PL_uid = PerlProc_getuid(); |
3280af22 | 2089 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2090 | break; |
2091 | case '>': | |
3280af22 NIS |
2092 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2093 | if (PL_delaymagic) { | |
2094 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2095 | break; /* don't do magic till later */ |
2096 | } | |
2097 | #ifdef HAS_SETEUID | |
3280af22 | 2098 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2099 | #else |
2100 | #ifdef HAS_SETREUID | |
b28d0864 | 2101 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2102 | #else |
2103 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2104 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2105 | #else |
b28d0864 NIS |
2106 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2107 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2108 | else { |
e8ee3774 | 2109 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2110 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2111 | } |
79072805 LW |
2112 | #endif |
2113 | #endif | |
85e6fe83 | 2114 | #endif |
d8eceb89 | 2115 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2116 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2117 | break; |
2118 | case '(': | |
3280af22 NIS |
2119 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2120 | if (PL_delaymagic) { | |
2121 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2122 | break; /* don't do magic till later */ |
2123 | } | |
2124 | #ifdef HAS_SETRGID | |
b28d0864 | 2125 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2126 | #else |
2127 | #ifdef HAS_SETREGID | |
3280af22 | 2128 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2129 | #else |
2130 | #ifdef HAS_SETRESGID | |
b28d0864 | 2131 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2132 | #else |
b28d0864 NIS |
2133 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2134 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2135 | else { |
d8eceb89 | 2136 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2137 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2138 | } |
79072805 LW |
2139 | #endif |
2140 | #endif | |
85e6fe83 | 2141 | #endif |
d8eceb89 | 2142 | PL_gid = PerlProc_getgid(); |
3280af22 | 2143 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2144 | break; |
2145 | case ')': | |
5cd24f17 | 2146 | #ifdef HAS_SETGROUPS |
2147 | { | |
2d8e6c8d | 2148 | char *p = SvPV(sv, len); |
5cd24f17 | 2149 | Groups_t gary[NGROUPS]; |
2150 | ||
5cd24f17 | 2151 | while (isSPACE(*p)) |
2152 | ++p; | |
2d4389e4 | 2153 | PL_egid = Atol(p); |
5cd24f17 | 2154 | for (i = 0; i < NGROUPS; ++i) { |
2155 | while (*p && !isSPACE(*p)) | |
2156 | ++p; | |
2157 | while (isSPACE(*p)) | |
2158 | ++p; | |
2159 | if (!*p) | |
2160 | break; | |
2d4389e4 | 2161 | gary[i] = Atol(p); |
5cd24f17 | 2162 | } |
8cc95fdb | 2163 | if (i) |
2164 | (void)setgroups(i, gary); | |
5cd24f17 | 2165 | } |
2166 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2167 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2168 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2169 | if (PL_delaymagic) { |
2170 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2171 | break; /* don't do magic till later */ |
2172 | } | |
2173 | #ifdef HAS_SETEGID | |
3280af22 | 2174 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2175 | #else |
2176 | #ifdef HAS_SETREGID | |
b28d0864 | 2177 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2178 | #else |
2179 | #ifdef HAS_SETRESGID | |
b28d0864 | 2180 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2181 | #else |
b28d0864 NIS |
2182 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2183 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2184 | else { |
d8eceb89 | 2185 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2186 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2187 | } |
79072805 LW |
2188 | #endif |
2189 | #endif | |
85e6fe83 | 2190 | #endif |
d8eceb89 | 2191 | PL_egid = PerlProc_getegid(); |
3280af22 | 2192 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2193 | break; |
2194 | case ':': | |
2d8e6c8d | 2195 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2196 | break; |
cd39f2b6 | 2197 | #ifndef MACOS_TRADITIONAL |
79072805 | 2198 | case '0': |
4bc88a62 PS |
2199 | #ifdef HAS_SETPROCTITLE |
2200 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2201 | * show a string from the process struct and provide | |
2202 | * the setproctitle() routine to manipulate that. */ | |
2203 | { | |
2204 | s = SvPV(sv, len); | |
98b76f99 | 2205 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2206 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2207 | * but not the "(perl) suffix from the ps(1) |
2208 | * output, because that's what ps(1) shows if the | |
2209 | * argv[] is modified. */ | |
6f2ad931 | 2210 | setproctitle("-%s", s); |
9aad2c0e | 2211 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2212 | /* This doesn't really work if you assume that |
2213 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2214 | * because in ps(1) output the result will be like | |
2215 | * sprintf("perl: %s (perl)", s) | |
2216 | * I guess this is a security feature: | |
2217 | * one (a user process) cannot get rid of the original name. | |
2218 | * --jhi */ | |
2219 | setproctitle("%s", s); | |
2220 | # endif | |
2221 | } | |
2222 | #endif | |
3280af22 NIS |
2223 | if (!PL_origalen) { |
2224 | s = PL_origargv[0]; | |
79072805 LW |
2225 | s += strlen(s); |
2226 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2227 | for (i = 1; i < PL_origargc; i++) { |
2228 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2229 | #ifdef OS2 |
6b88bc9c | 2230 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2231 | #endif |
fb73857a | 2232 | ) |
379c4362 GS |
2233 | { |
2234 | ++s; | |
2235 | s += strlen(s); /* this one is ok too */ | |
2236 | } | |
fb73857a | 2237 | else |
2238 | break; | |
79072805 | 2239 | } |
bbce6d69 | 2240 | /* can grab env area too? */ |
764df951 | 2241 | if (PL_origenviron && (PL_origenviron[0] == s + 1)) { |
66b1d557 | 2242 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2243 | /* force copy of environment */ |
3280af22 | 2244 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2245 | if (PL_origenviron[i] == s + 1) { |
2246 | ++s; | |
2247 | s += strlen(s); | |
2248 | } | |
fb73857a | 2249 | else |
2250 | break; | |
79072805 | 2251 | } |
3280af22 | 2252 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2253 | } |
a0d0e21e | 2254 | s = SvPV_force(sv,len); |
8990e307 | 2255 | i = len; |
3280af22 NIS |
2256 | if (i >= PL_origalen) { |
2257 | i = PL_origalen; | |
fb73857a | 2258 | /* don't allow system to limit $0 seen by script */ |
2259 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2260 | Copy(s, PL_origargv[0], i, char); |
2261 | s = PL_origargv[0]+i; | |
fb73857a | 2262 | *s = '\0'; |
79072805 LW |
2263 | } |
2264 | else { | |
3280af22 NIS |
2265 | Copy(s, PL_origargv[0], i, char); |
2266 | s = PL_origargv[0]+i; | |
79072805 | 2267 | *s++ = '\0'; |
3280af22 | 2268 | while (++i < PL_origalen) |
8990e307 | 2269 | *s++ = ' '; |
3280af22 NIS |
2270 | s = PL_origargv[0]+i; |
2271 | for (i = 1; i < PL_origargc; i++) | |
2272 | PL_origargv[i] = Nullch; | |
79072805 LW |
2273 | } |
2274 | break; | |
cd39f2b6 | 2275 | #endif |
4d1ff10f | 2276 | #ifdef USE_5005THREADS |
a863c7d1 | 2277 | case '@': |
38a03e6e | 2278 | sv_setsv(thr->errsv, sv); |
a863c7d1 | 2279 | break; |
4d1ff10f | 2280 | #endif /* USE_5005THREADS */ |
79072805 LW |
2281 | } |
2282 | return 0; | |
2283 | } | |
2284 | ||
4d1ff10f | 2285 | #ifdef USE_5005THREADS |
f93b4edd | 2286 | int |
864dbfa3 | 2287 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2288 | { |
b900a521 JH |
2289 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2290 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
a674cc95 | 2291 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd | 2292 | if (MgOWNER(mg)) |
cea2e8a9 | 2293 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2294 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2295 | COND_DESTROY(MgCONDP(mg)); | |
2296 | return 0; | |
2297 | } | |
4d1ff10f | 2298 | #endif /* USE_5005THREADS */ |
f93b4edd | 2299 | |
79072805 | 2300 | I32 |
864dbfa3 | 2301 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2302 | { |
2303 | register char **sigv; | |
2304 | ||
22c35a8c | 2305 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2306 | if (strEQ(sig,*sigv)) |
22c35a8c | 2307 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2308 | #ifdef SIGCLD |
2309 | if (strEQ(sig,"CHLD")) | |
2310 | return SIGCLD; | |
2311 | #endif | |
2312 | #ifdef SIGCHLD | |
2313 | if (strEQ(sig,"CLD")) | |
2314 | return SIGCHLD; | |
2315 | #endif | |
2316 | return 0; | |
2317 | } | |
2318 | ||
df3728a2 | 2319 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2320 | static SV* sig_sv; |
df3728a2 | 2321 | #endif |
84902520 | 2322 | |
ecfc5424 | 2323 | Signal_t |
cea2e8a9 | 2324 | Perl_sighandler(int sig) |
79072805 | 2325 | { |
1018e26f NIS |
2326 | #ifdef PERL_GET_SIG_CONTEXT |
2327 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2328 | #else |
cea2e8a9 | 2329 | dTHX; |
71d280e3 | 2330 | #endif |
79072805 | 2331 | dSP; |
00d579c5 | 2332 | GV *gv = Nullgv; |
a0d0e21e | 2333 | HV *st; |
b7953727 | 2334 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2335 | CV *cv = Nullcv; |
533c011a | 2336 | OP *myop = PL_op; |
84902520 | 2337 | U32 flags = 0; |
3280af22 | 2338 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2339 | |
3280af22 | 2340 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2341 | flags |= 1; |
3280af22 | 2342 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2343 | flags |= 4; |
3280af22 | 2344 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2345 | flags |= 8; |
3280af22 | 2346 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2347 | flags |= 16; |
2348 | ||
727405f8 | 2349 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2350 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2351 | PL_sig_name[sig]); |
2352 | exit(sig); | |
2353 | } | |
ff0cee69 | 2354 | |
84902520 TB |
2355 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2356 | infinity, so we fix 4 (in fact 5): */ | |
2357 | if (flags & 1) { | |
3280af22 | 2358 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2359 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2360 | } |
ac27b0f5 | 2361 | if (flags & 4) |
3280af22 | 2362 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2363 | if (flags & 8) { |
3280af22 NIS |
2364 | PL_retstack_ix++; |
2365 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2366 | } |
2367 | if (flags & 16) | |
3280af22 | 2368 | PL_scopestack_ix += 1; |
84902520 | 2369 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2370 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2371 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2372 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2373 | |
a0d0e21e | 2374 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2375 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2376 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2377 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2378 | : ((cv && CvGV(cv)) |
2379 | ? GvENAME(CvGV(cv)) | |
2380 | : "__ANON__"))); | |
2381 | goto cleanup; | |
79072805 LW |
2382 | } |
2383 | ||
22c35a8c GS |
2384 | if(PL_psig_name[sig]) { |
2385 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2386 | flags |= 64; |
df3728a2 | 2387 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2388 | sig_sv = sv; |
df3728a2 | 2389 | #endif |
84902520 | 2390 | } else { |
ff0cee69 | 2391 | sv = sv_newmortal(); |
22c35a8c | 2392 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2393 | } |
e336de0d | 2394 | |
e788e7d3 | 2395 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2396 | PUSHMARK(SP); |
79072805 | 2397 | PUSHs(sv); |
79072805 | 2398 | PUTBACK; |
a0d0e21e | 2399 | |
1b266415 | 2400 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2401 | |
d3acc0f7 | 2402 | POPSTACK; |
1b266415 | 2403 | if (SvTRUE(ERRSV)) { |
1d615522 | 2404 | #ifndef PERL_MICRO |
983dbef6 | 2405 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2406 | /* Handler "died", for example to get out of a restart-able read(). |
2407 | * Before we re-do that on its behalf re-enable the signal which was | |
2408 | * blocked by the system when we entered. | |
2409 | */ | |
2410 | sigset_t set; | |
2411 | sigemptyset(&set); | |
2412 | sigaddset(&set,sig); | |
2413 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2414 | #else | |
2415 | /* Not clear if this will work */ | |
2416 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2417 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2418 | #endif |
1d615522 | 2419 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2420 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2421 | } |
00d579c5 | 2422 | cleanup: |
84902520 | 2423 | if (flags & 1) |
3280af22 | 2424 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2425 | if (flags & 4) |
3280af22 | 2426 | PL_markstack_ptr--; |
ac27b0f5 | 2427 | if (flags & 8) |
3280af22 | 2428 | PL_retstack_ix--; |
84902520 | 2429 | if (flags & 16) |
3280af22 | 2430 | PL_scopestack_ix -= 1; |
84902520 TB |
2431 | if (flags & 64) |
2432 | SvREFCNT_dec(sv); | |
533c011a | 2433 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2434 | |
3280af22 NIS |
2435 | PL_Sv = tSv; /* Restore global temporaries. */ |
2436 | PL_Xpv = tXpv; | |
79072805 LW |
2437 | return; |
2438 | } | |
4e35701f NIS |
2439 | |
2440 | ||
51371543 | 2441 | static void |
acfe0abc | 2442 | restore_magic(pTHX_ void *p) |
51371543 | 2443 | { |
48944bdf | 2444 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2445 | SV* sv = mgs->mgs_sv; |
2446 | ||
2447 | if (!sv) | |
2448 | return; | |
2449 | ||
2450 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2451 | { | |
2452 | if (mgs->mgs_flags) | |
2453 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2454 | else | |
2455 | mg_magical(sv); | |
2456 | if (SvGMAGICAL(sv)) | |
2457 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2458 | } | |
2459 | ||
2460 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2461 | ||
2462 | /* If we're still on top of the stack, pop us off. (That condition | |
2463 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2464 | * if it's being called via leave_scope.) | |
2465 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2466 | * may leave alloc gunk on the savestack, and some code | |
2467 | * (e.g. sighandler) doesn't expect that... | |
2468 | */ | |
2469 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2470 | { | |
2471 | I32 popval = SSPOPINT; | |
c76ac1ee | 2472 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2473 | PL_savestack_ix -= 2; |
2474 | popval = SSPOPINT; | |
2475 | assert(popval == SAVEt_ALLOC); | |
2476 | popval = SSPOPINT; | |
2477 | PL_savestack_ix -= popval; | |
2478 | } | |
2479 | ||
2480 | } | |
2481 | ||
2482 | static void | |
acfe0abc | 2483 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2484 | { |
51371543 GS |
2485 | U32 flags = *(U32*)p; |
2486 | ||
2487 | if (flags & 1) | |
2488 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2489 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2490 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2491 | if (flags & 64) |
2492 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2493 | #endif |
51371543 | 2494 | } |
1018e26f NIS |
2495 | |
2496 |