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