Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4bb101f2 JH |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
4 | * 2000, 2001, 2002, 2003, by Larry Wall and others | |
79072805 LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
13 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
14 | */ |
15 | ||
ccfc67b7 JH |
16 | /* |
17 | =head1 Magical Functions | |
18 | */ | |
19 | ||
79072805 | 20 | #include "EXTERN.h" |
864dbfa3 | 21 | #define PERL_IN_MG_C |
79072805 LW |
22 | #include "perl.h" |
23 | ||
5cd24f17 | 24 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
25 | # ifndef NGROUPS |
26 | # define NGROUPS 32 | |
27 | # endif | |
b7953727 JH |
28 | # ifdef I_GRP |
29 | # include <grp.h> | |
30 | # endif | |
188ea221 CS |
31 | #endif |
32 | ||
17aa7f3d JH |
33 | #ifdef __hpux |
34 | # include <sys/pstat.h> | |
35 | #endif | |
36 | ||
e69880a5 CB |
37 | Signal_t Perl_csighandler(int sig); |
38 | ||
23ada85b | 39 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 40 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 41 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 42 | #endif |
2e34cc90 | 43 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 | 44 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 CL |
45 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
46 | #endif | |
85b332e2 | 47 | |
acfe0abc GS |
48 | static void restore_magic(pTHX_ void *p); |
49 | static void unwind_handler_stack(pTHX_ void *p); | |
51371543 | 50 | |
c07a80fd | 51 | /* |
52 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
53 | */ | |
54 | ||
55 | struct magic_state { | |
56 | SV* mgs_sv; | |
57 | U32 mgs_flags; | |
455ece5e | 58 | I32 mgs_ss_ix; |
c07a80fd | 59 | }; |
455ece5e | 60 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
61 | |
62 | STATIC void | |
8fb26106 | 63 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 64 | { |
455ece5e | 65 | MGS* mgs; |
c07a80fd | 66 | assert(SvMAGICAL(sv)); |
765f542d NC |
67 | #ifdef PERL_COPY_ON_WRITE |
68 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ | |
69 | if (SvIsCOW(sv)) | |
70 | sv_force_normal(sv); | |
71 | #endif | |
c07a80fd | 72 | |
685f876f | 73 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
74 | |
75 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 76 | mgs->mgs_sv = sv; |
77 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 78 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 79 | |
80 | SvMAGICAL_off(sv); | |
81 | SvREADONLY_off(sv); | |
06759ea0 | 82 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 83 | } |
84 | ||
954c1994 GS |
85 | /* |
86 | =for apidoc mg_magical | |
87 | ||
88 | Turns on the magical status of an SV. See C<sv_magic>. | |
89 | ||
90 | =cut | |
91 | */ | |
92 | ||
8990e307 | 93 | void |
864dbfa3 | 94 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
95 | { |
96 | MAGIC* mg; | |
97 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
98 | MGVTBL* vtbl = mg->mg_virtual; | |
99 | if (vtbl) { | |
2b260de0 | 100 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
101 | SvGMAGICAL_on(sv); |
102 | if (vtbl->svt_set) | |
103 | SvSMAGICAL_on(sv); | |
2b260de0 | 104 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
105 | SvRMAGICAL_on(sv); |
106 | } | |
107 | } | |
108 | } | |
109 | ||
954c1994 GS |
110 | /* |
111 | =for apidoc mg_get | |
112 | ||
113 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
114 | ||
115 | =cut | |
116 | */ | |
117 | ||
79072805 | 118 | int |
864dbfa3 | 119 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 120 | { |
ff76feab AMS |
121 | int new = 0; |
122 | MAGIC *newmg, *head, *cur, *mg; | |
123 | I32 mgs_ix = SSNEW(sizeof(MGS)); | |
463ee0b2 | 124 | |
455ece5e | 125 | save_magic(mgs_ix, sv); |
463ee0b2 | 126 | |
ff76feab AMS |
127 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
128 | list of magic. svt_get() may delete the current entry, add new | |
129 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
130 | ||
131 | newmg = cur = head = mg = SvMAGIC(sv); | |
132 | while (mg) { | |
133 | MGVTBL *vtbl = mg->mg_virtual; | |
134 | ||
2b260de0 | 135 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 136 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 YST |
137 | |
138 | /* guard against sv having been freed */ | |
139 | if (SvTYPE(sv) == SVTYPEMASK) { | |
140 | Perl_croak(aTHX_ "Tied variable freed while still in use"); | |
141 | } | |
58f82c5c DM |
142 | /* guard against magic having been deleted - eg FETCH calling |
143 | * untie */ | |
144 | if (!SvMAGIC(sv)) | |
145 | break; | |
b77f7d40 | 146 | |
ff76feab AMS |
147 | /* Don't restore the flags for this entry if it was deleted. */ |
148 | if (mg->mg_flags & MGf_GSKIP) | |
149 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 150 | } |
ff76feab AMS |
151 | |
152 | mg = mg->mg_moremagic; | |
153 | ||
154 | if (new) { | |
155 | /* Have we finished with the new entries we saw? Start again | |
156 | where we left off (unless there are more new entries). */ | |
157 | if (mg == head) { | |
158 | new = 0; | |
159 | mg = cur; | |
160 | head = newmg; | |
161 | } | |
162 | } | |
163 | ||
164 | /* Were any new entries added? */ | |
165 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
166 | new = 1; | |
167 | cur = mg; | |
168 | mg = newmg; | |
760ac839 | 169 | } |
79072805 | 170 | } |
463ee0b2 | 171 | |
acfe0abc | 172 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
173 | return 0; |
174 | } | |
175 | ||
954c1994 GS |
176 | /* |
177 | =for apidoc mg_set | |
178 | ||
179 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
180 | ||
181 | =cut | |
182 | */ | |
183 | ||
79072805 | 184 | int |
864dbfa3 | 185 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 186 | { |
8fb26106 | 187 | I32 mgs_ix; |
79072805 | 188 | MAGIC* mg; |
463ee0b2 LW |
189 | MAGIC* nextmg; |
190 | ||
455ece5e AD |
191 | mgs_ix = SSNEW(sizeof(MGS)); |
192 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
193 | |
194 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 195 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 196 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
197 | if (mg->mg_flags & MGf_GSKIP) { |
198 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 199 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 200 | } |
2b260de0 | 201 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 202 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 203 | } |
463ee0b2 | 204 | |
acfe0abc | 205 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
206 | return 0; |
207 | } | |
208 | ||
954c1994 GS |
209 | /* |
210 | =for apidoc mg_length | |
211 | ||
212 | Report on the SV's length. See C<sv_magic>. | |
213 | ||
214 | =cut | |
215 | */ | |
216 | ||
79072805 | 217 | U32 |
864dbfa3 | 218 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
219 | { |
220 | MAGIC* mg; | |
463ee0b2 | 221 | STRLEN len; |
463ee0b2 | 222 | |
79072805 LW |
223 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
224 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 225 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 226 | I32 mgs_ix; |
48e43a1c | 227 | |
455ece5e AD |
228 | mgs_ix = SSNEW(sizeof(MGS)); |
229 | save_magic(mgs_ix, sv); | |
a0d0e21e | 230 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 231 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 232 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
233 | return len; |
234 | } | |
235 | } | |
236 | ||
7719e241 | 237 | if (DO_UTF8(sv)) |
5636d518 DB |
238 | { |
239 | U8 *s = (U8*)SvPV(sv, len); | |
240 | len = Perl_utf8_length(aTHX_ s, s + len); | |
241 | } | |
242 | else | |
243 | (void)SvPV(sv, len); | |
463ee0b2 | 244 | return len; |
79072805 LW |
245 | } |
246 | ||
8fb26106 | 247 | I32 |
864dbfa3 | 248 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
249 | { |
250 | MAGIC* mg; | |
251 | I32 len; | |
ac27b0f5 | 252 | |
93965878 NIS |
253 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
254 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 255 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 256 | I32 mgs_ix; |
455ece5e AD |
257 | |
258 | mgs_ix = SSNEW(sizeof(MGS)); | |
259 | save_magic(mgs_ix, sv); | |
93965878 | 260 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 261 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 262 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
263 | return len; |
264 | } | |
265 | } | |
266 | ||
267 | switch(SvTYPE(sv)) { | |
268 | case SVt_PVAV: | |
269 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
270 | return len; | |
271 | case SVt_PVHV: | |
272 | /* FIXME */ | |
273 | default: | |
cea2e8a9 | 274 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
275 | break; |
276 | } | |
277 | return 0; | |
278 | } | |
279 | ||
954c1994 GS |
280 | /* |
281 | =for apidoc mg_clear | |
282 | ||
283 | Clear something magical that the SV represents. See C<sv_magic>. | |
284 | ||
285 | =cut | |
286 | */ | |
287 | ||
79072805 | 288 | int |
864dbfa3 | 289 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 290 | { |
8fb26106 | 291 | I32 mgs_ix; |
79072805 | 292 | MAGIC* mg; |
463ee0b2 | 293 | |
455ece5e AD |
294 | mgs_ix = SSNEW(sizeof(MGS)); |
295 | save_magic(mgs_ix, sv); | |
463ee0b2 | 296 | |
79072805 LW |
297 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
298 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e | 299 | /* omit GSKIP -- never set here */ |
727405f8 | 300 | |
2b260de0 | 301 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 302 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 303 | } |
463ee0b2 | 304 | |
acfe0abc | 305 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
306 | return 0; |
307 | } | |
308 | ||
954c1994 GS |
309 | /* |
310 | =for apidoc mg_find | |
311 | ||
312 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
313 | ||
314 | =cut | |
315 | */ | |
316 | ||
93a17b20 | 317 | MAGIC* |
864dbfa3 | 318 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
319 | { |
320 | MAGIC* mg; | |
3f8f4626 DC |
321 | if (!sv) |
322 | return 0; | |
93a17b20 LW |
323 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
324 | if (mg->mg_type == type) | |
325 | return mg; | |
326 | } | |
327 | return 0; | |
328 | } | |
329 | ||
954c1994 GS |
330 | /* |
331 | =for apidoc mg_copy | |
332 | ||
333 | Copies the magic from one SV to another. See C<sv_magic>. | |
334 | ||
335 | =cut | |
336 | */ | |
337 | ||
79072805 | 338 | int |
864dbfa3 | 339 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 340 | { |
463ee0b2 | 341 | int count = 0; |
79072805 | 342 | MAGIC* mg; |
463ee0b2 | 343 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 NIS |
344 | MGVTBL* vtbl = mg->mg_virtual; |
345 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ | |
346 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
347 | } | |
348 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 349 | sv_magic(nsv, |
14befaf4 DM |
350 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
351 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
352 | ? sv : mg->mg_obj, | |
33c27489 | 353 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 354 | count++; |
79072805 | 355 | } |
79072805 | 356 | } |
463ee0b2 | 357 | return count; |
79072805 LW |
358 | } |
359 | ||
954c1994 GS |
360 | /* |
361 | =for apidoc mg_free | |
362 | ||
363 | Free any magic storage used by the SV. See C<sv_magic>. | |
364 | ||
365 | =cut | |
366 | */ | |
367 | ||
79072805 | 368 | int |
864dbfa3 | 369 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
370 | { |
371 | MAGIC* mg; | |
372 | MAGIC* moremagic; | |
373 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
374 | MGVTBL* vtbl = mg->mg_virtual; | |
375 | moremagic = mg->mg_moremagic; | |
2b260de0 | 376 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 377 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 378 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 | 379 | if (mg->mg_len > 0) |
88e89b8a | 380 | Safefree(mg->mg_ptr); |
565764a8 | 381 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 382 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 383 | } |
b881518d JH |
384 | if (mg->mg_flags & MGf_REFCOUNTED) |
385 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
386 | Safefree(mg); |
387 | } | |
388 | SvMAGIC(sv) = 0; | |
389 | return 0; | |
390 | } | |
391 | ||
d460ef45 | 392 | |
79072805 LW |
393 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
394 | #include <signal.h> | |
395 | #endif | |
396 | ||
942e002e | 397 | U32 |
864dbfa3 | 398 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 399 | { |
6cef1e77 | 400 | register REGEXP *rx; |
6cef1e77 | 401 | |
aaa362c4 | 402 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
403 | if (mg->mg_obj) /* @+ */ |
404 | return rx->nparens; | |
405 | else /* @- */ | |
406 | return rx->lastparen; | |
407 | } | |
ac27b0f5 | 408 | |
942e002e | 409 | return (U32)-1; |
6cef1e77 IZ |
410 | } |
411 | ||
412 | int | |
864dbfa3 | 413 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 414 | { |
6cef1e77 | 415 | register I32 paren; |
cf93c79d | 416 | register I32 s; |
6cef1e77 IZ |
417 | register I32 i; |
418 | register REGEXP *rx; | |
cf93c79d | 419 | I32 t; |
6cef1e77 | 420 | |
aaa362c4 | 421 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
422 | paren = mg->mg_len; |
423 | if (paren < 0) | |
424 | return 0; | |
eb160463 | 425 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
426 | (s = rx->startp[paren]) != -1 && |
427 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
428 | { |
429 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 430 | i = t; |
6cef1e77 | 431 | else /* @- */ |
cf93c79d | 432 | i = s; |
727405f8 | 433 | |
a30b2f1f | 434 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b | 435 | char *b = rx->subbeg; |
0064a8a9 JH |
436 | if (b) |
437 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 438 | } |
0064a8a9 JH |
439 | |
440 | sv_setiv(sv, i); | |
6cef1e77 IZ |
441 | } |
442 | } | |
443 | return 0; | |
444 | } | |
445 | ||
e4b89193 | 446 | int |
a29d06ed MG |
447 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
448 | { | |
a29d06ed | 449 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
450 | /* NOT REACHED */ |
451 | return 0; | |
a29d06ed MG |
452 | } |
453 | ||
93a17b20 | 454 | U32 |
864dbfa3 | 455 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
456 | { |
457 | register I32 paren; | |
93a17b20 | 458 | register I32 i; |
d9f97599 | 459 | register REGEXP *rx; |
a197cbdd | 460 | I32 s1, t1; |
93a17b20 LW |
461 | |
462 | switch (*mg->mg_ptr) { | |
463 | case '1': case '2': case '3': case '4': | |
464 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 465 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 466 | |
ffc61ed2 | 467 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 468 | getparen: |
eb160463 | 469 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
470 | (s1 = rx->startp[paren]) != -1 && |
471 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 472 | { |
cf93c79d | 473 | i = t1 - s1; |
a197cbdd | 474 | getlen: |
a30b2f1f | 475 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
ffc61ed2 | 476 | char *s = rx->subbeg + s1; |
a197cbdd | 477 | char *send = rx->subbeg + t1; |
ffc61ed2 | 478 | |
6d5fa195 | 479 | i = t1 - s1; |
60425c38 JH |
480 | if (is_utf8_string((U8*)s, i)) |
481 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 482 | } |
ffc61ed2 | 483 | if (i < 0) |
0844c848 | 484 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 485 | return i; |
93a17b20 | 486 | } |
235bddc8 NIS |
487 | else { |
488 | if (ckWARN(WARN_UNINITIALIZED)) | |
489 | report_uninit(); | |
490 | } | |
491 | } | |
492 | else { | |
493 | if (ckWARN(WARN_UNINITIALIZED)) | |
494 | report_uninit(); | |
93a17b20 | 495 | } |
748a9306 | 496 | return 0; |
93a17b20 | 497 | case '+': |
aaa362c4 | 498 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 499 | paren = rx->lastparen; |
13f57bf8 CS |
500 | if (paren) |
501 | goto getparen; | |
93a17b20 | 502 | } |
748a9306 | 503 | return 0; |
a01268b5 JH |
504 | case '\016': /* ^N */ |
505 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
506 | paren = rx->lastcloseparen; | |
507 | if (paren) | |
508 | goto getparen; | |
509 | } | |
510 | return 0; | |
93a17b20 | 511 | case '`': |
aaa362c4 | 512 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
513 | if (rx->startp[0] != -1) { |
514 | i = rx->startp[0]; | |
a197cbdd GS |
515 | if (i > 0) { |
516 | s1 = 0; | |
517 | t1 = i; | |
518 | goto getlen; | |
519 | } | |
93a17b20 | 520 | } |
93a17b20 | 521 | } |
748a9306 | 522 | return 0; |
93a17b20 | 523 | case '\'': |
aaa362c4 | 524 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
525 | if (rx->endp[0] != -1) { |
526 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
527 | if (i > 0) { |
528 | s1 = rx->endp[0]; | |
529 | t1 = rx->sublen; | |
530 | goto getlen; | |
531 | } | |
93a17b20 | 532 | } |
93a17b20 | 533 | } |
748a9306 | 534 | return 0; |
93a17b20 LW |
535 | } |
536 | magic_get(sv,mg); | |
2d8e6c8d GS |
537 | if (!SvPOK(sv) && SvNIOK(sv)) { |
538 | STRLEN n_a; | |
539 | sv_2pv(sv, &n_a); | |
540 | } | |
93a17b20 LW |
541 | if (SvPOK(sv)) |
542 | return SvCUR(sv); | |
543 | return 0; | |
544 | } | |
545 | ||
79072805 | 546 | int |
864dbfa3 | 547 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
548 | { |
549 | register I32 paren; | |
35272f84 | 550 | register char *s = NULL; |
79072805 | 551 | register I32 i; |
d9f97599 | 552 | register REGEXP *rx; |
79072805 LW |
553 | |
554 | switch (*mg->mg_ptr) { | |
748a9306 | 555 | case '\001': /* ^A */ |
3280af22 | 556 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 557 | break; |
49460fe6 NIS |
558 | case '\003': /* ^C */ |
559 | sv_setiv(sv, (IV)PL_minus_c); | |
560 | break; | |
561 | ||
79072805 | 562 | case '\004': /* ^D */ |
aea4f609 | 563 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 564 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 565 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 566 | #endif |
79072805 | 567 | break; |
28f23441 | 568 | case '\005': /* ^E */ |
0a378802 | 569 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 570 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
571 | { |
572 | char msg[256]; | |
727405f8 | 573 | |
0a378802 | 574 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 575 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 576 | } |
727405f8 | 577 | #else |
28f23441 | 578 | #ifdef VMS |
0a378802 JH |
579 | { |
580 | # include <descrip.h> | |
581 | # include <starlet.h> | |
582 | char msg[255]; | |
583 | $DESCRIPTOR(msgdsc,msg); | |
584 | sv_setnv(sv,(NV) vaxc$errno); | |
585 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
586 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
587 | else | |
588 | sv_setpv(sv,""); | |
589 | } | |
28f23441 | 590 | #else |
88e89b8a | 591 | #ifdef OS2 |
0a378802 JH |
592 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
593 | sv_setnv(sv, (NV)errno); | |
594 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
595 | } else { | |
596 | if (errno != errno_isOS2) { | |
597 | int tmp = _syserrno(); | |
598 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
599 | Perl_rc = tmp; | |
600 | } | |
601 | sv_setnv(sv, (NV)Perl_rc); | |
602 | sv_setpv(sv, os2error(Perl_rc)); | |
603 | } | |
88e89b8a | 604 | #else |
22fae026 | 605 | #ifdef WIN32 |
0a378802 JH |
606 | { |
607 | DWORD dwErr = GetLastError(); | |
608 | sv_setnv(sv, (NV)dwErr); | |
609 | if (dwErr) | |
610 | { | |
611 | PerlProc_GetOSError(sv, dwErr); | |
612 | } | |
613 | else | |
614 | sv_setpv(sv, ""); | |
615 | SetLastError(dwErr); | |
616 | } | |
22fae026 | 617 | #else |
0a378802 JH |
618 | sv_setnv(sv, (NV)errno); |
619 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
28f23441 | 620 | #endif |
88e89b8a | 621 | #endif |
22fae026 | 622 | #endif |
cd39f2b6 | 623 | #endif |
0a378802 JH |
624 | SvNOK_on(sv); /* what a wonderful hack! */ |
625 | } | |
626 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
627 | sv_setsv(sv, PL_encoding); | |
628 | break; | |
79072805 | 629 | case '\006': /* ^F */ |
3280af22 | 630 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 631 | break; |
a0d0e21e | 632 | case '\010': /* ^H */ |
3280af22 | 633 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 634 | break; |
9d116dd7 | 635 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
636 | if (PL_inplace) |
637 | sv_setpv(sv, PL_inplace); | |
79072805 | 638 | else |
3280af22 | 639 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 640 | break; |
ac27b0f5 NIS |
641 | case '\017': /* ^O & ^OPEN */ |
642 | if (*(mg->mg_ptr+1) == '\0') | |
643 | sv_setpv(sv, PL_osname); | |
644 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
645 | if (!PL_compiling.cop_io) | |
646 | sv_setsv(sv, &PL_sv_undef); | |
647 | else { | |
648 | sv_setsv(sv, PL_compiling.cop_io); | |
649 | } | |
650 | } | |
28f23441 | 651 | break; |
79072805 | 652 | case '\020': /* ^P */ |
3280af22 | 653 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 654 | break; |
fb73857a | 655 | case '\023': /* ^S */ |
4ffa73a3 | 656 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 657 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 658 | (void)SvOK_off(sv); |
3280af22 | 659 | else if (PL_in_eval) |
6dc8a9e4 | 660 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
661 | else |
662 | sv_setiv(sv, 0); | |
d58bf5aa | 663 | } |
fb73857a | 664 | break; |
79072805 | 665 | case '\024': /* ^T */ |
7c36658b | 666 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 667 | #ifdef BIG_TIME |
7c36658b | 668 | sv_setnv(sv, PL_basetime); |
88e89b8a | 669 | #else |
7c36658b | 670 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 671 | #endif |
7c36658b MS |
672 | } |
673 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
674 | sv_setiv(sv, PL_tainting |
675 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
676 | : 0); | |
7c36658b | 677 | break; |
a05d7ebb JH |
678 | case '\025': /* $^UNICODE */ |
679 | if (strEQ(mg->mg_ptr, "\025NICODE")) | |
680 | sv_setuv(sv, (UV) PL_unicode); | |
fde18df1 JH |
681 | break; |
682 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
683 | if (*(mg->mg_ptr+1) == '\0') |
684 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 685 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
686 | if (PL_compiling.cop_warnings == pWARN_NONE || |
687 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
688 | { |
689 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
690 | } | |
d3a7d8c7 | 691 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
692 | /* Get the bit mask for $warnings::Bits{all}, because |
693 | * it could have been extended by warnings::register */ | |
694 | SV **bits_all; | |
695 | HV *bits=get_hv("warnings::Bits", FALSE); | |
696 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
697 | sv_setsv(sv, *bits_all); | |
698 | } | |
699 | else { | |
700 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
701 | } | |
ac27b0f5 | 702 | } |
4438c4b7 JH |
703 | else { |
704 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 705 | } |
d3a7d8c7 | 706 | SvPOK_only(sv); |
4438c4b7 | 707 | } |
79072805 LW |
708 | break; |
709 | case '1': case '2': case '3': case '4': | |
710 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 711 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
712 | I32 s1, t1; |
713 | ||
a863c7d1 MB |
714 | /* |
715 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
716 | * XXX Does the new way break anything? | |
717 | */ | |
ffc61ed2 | 718 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 719 | getparen: |
eb160463 | 720 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
721 | (s1 = rx->startp[paren]) != -1 && |
722 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 723 | { |
cf93c79d IZ |
724 | i = t1 - s1; |
725 | s = rx->subbeg + s1; | |
01ec43d0 | 726 | if (!rx->subbeg) |
c2e66d9e GS |
727 | break; |
728 | ||
13f57bf8 | 729 | getrx: |
748a9306 | 730 | if (i >= 0) { |
cf93c79d | 731 | sv_setpvn(sv, s, i); |
a30b2f1f | 732 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
733 | SvUTF8_on(sv); |
734 | else | |
735 | SvUTF8_off(sv); | |
e9814ee1 HS |
736 | if (PL_tainting) { |
737 | if (RX_MATCH_TAINTED(rx)) { | |
738 | MAGIC* mg = SvMAGIC(sv); | |
739 | MAGIC* mgt; | |
740 | PL_tainted = 1; | |
741 | SvMAGIC(sv) = mg->mg_moremagic; | |
742 | SvTAINT(sv); | |
743 | if ((mgt = SvMAGIC(sv))) { | |
744 | mg->mg_moremagic = mgt; | |
745 | SvMAGIC(sv) = mg; | |
746 | } | |
747 | } else | |
748 | SvTAINTED_off(sv); | |
749 | } | |
748a9306 LW |
750 | break; |
751 | } | |
79072805 | 752 | } |
79072805 | 753 | } |
3280af22 | 754 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
755 | break; |
756 | case '+': | |
aaa362c4 | 757 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 758 | paren = rx->lastparen; |
a0d0e21e LW |
759 | if (paren) |
760 | goto getparen; | |
79072805 | 761 | } |
3280af22 | 762 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 763 | break; |
a01268b5 JH |
764 | case '\016': /* ^N */ |
765 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
766 | paren = rx->lastcloseparen; | |
767 | if (paren) | |
768 | goto getparen; | |
769 | } | |
770 | sv_setsv(sv,&PL_sv_undef); | |
771 | break; | |
79072805 | 772 | case '`': |
aaa362c4 | 773 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
774 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
775 | i = rx->startp[0]; | |
13f57bf8 | 776 | goto getrx; |
79072805 | 777 | } |
79072805 | 778 | } |
3280af22 | 779 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
780 | break; |
781 | case '\'': | |
aaa362c4 | 782 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
783 | if (rx->subbeg && rx->endp[0] != -1) { |
784 | s = rx->subbeg + rx->endp[0]; | |
785 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 786 | goto getrx; |
79072805 | 787 | } |
79072805 | 788 | } |
3280af22 | 789 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
790 | break; |
791 | case '.': | |
792 | #ifndef lint | |
3280af22 | 793 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 794 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
795 | } |
796 | #endif | |
797 | break; | |
798 | case '?': | |
809a5acc | 799 | { |
809a5acc | 800 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 801 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
802 | LvTARGOFF(sv) = PL_statusvalue; |
803 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 804 | #endif |
809a5acc | 805 | } |
79072805 LW |
806 | break; |
807 | case '^': | |
0daa599b RGS |
808 | if (GvIOp(PL_defoutgv)) |
809 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
810 | if (s) |
811 | sv_setpv(sv,s); | |
812 | else { | |
3280af22 | 813 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
814 | sv_catpv(sv,"_TOP"); |
815 | } | |
816 | break; | |
817 | case '~': | |
0daa599b RGS |
818 | if (GvIOp(PL_defoutgv)) |
819 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 820 | if (!s) |
3280af22 | 821 | s = GvENAME(PL_defoutgv); |
79072805 LW |
822 | sv_setpv(sv,s); |
823 | break; | |
824 | #ifndef lint | |
825 | case '=': | |
0daa599b RGS |
826 | if (GvIOp(PL_defoutgv)) |
827 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
828 | break; |
829 | case '-': | |
0daa599b RGS |
830 | if (GvIOp(PL_defoutgv)) |
831 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
832 | break; |
833 | case '%': | |
0daa599b RGS |
834 | if (GvIOp(PL_defoutgv)) |
835 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 LW |
836 | break; |
837 | #endif | |
838 | case ':': | |
839 | break; | |
840 | case '/': | |
841 | break; | |
842 | case '[': | |
3280af22 | 843 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
844 | break; |
845 | case '|': | |
0daa599b RGS |
846 | if (GvIOp(PL_defoutgv)) |
847 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
848 | break; |
849 | case ',': | |
79072805 LW |
850 | break; |
851 | case '\\': | |
b2ce0fda | 852 | if (PL_ors_sv) |
f28098ff | 853 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
854 | break; |
855 | case '#': | |
3280af22 | 856 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
857 | break; |
858 | case '!': | |
a5f75d66 | 859 | #ifdef VMS |
65202027 | 860 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 861 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 862 | #else |
88e89b8a | 863 | { |
864 | int saveerrno = errno; | |
65202027 | 865 | sv_setnv(sv, (NV)errno); |
88e89b8a | 866 | #ifdef OS2 |
ed344e4f IZ |
867 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
868 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 869 | else |
a5f75d66 | 870 | #endif |
2304df62 | 871 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 872 | errno = saveerrno; |
873 | } | |
874 | #endif | |
946ec16e | 875 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
876 | break; |
877 | case '<': | |
3280af22 | 878 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
879 | break; |
880 | case '>': | |
3280af22 | 881 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
882 | break; |
883 | case '(': | |
3280af22 | 884 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 885 | #ifdef HAS_GETGROUPS |
785fb66b | 886 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 887 | #endif |
79072805 LW |
888 | goto add_groups; |
889 | case ')': | |
3280af22 | 890 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 891 | #ifdef HAS_GETGROUPS |
785fb66b | 892 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 893 | #endif |
79072805 | 894 | add_groups: |
79072805 | 895 | #ifdef HAS_GETGROUPS |
79072805 | 896 | { |
a0d0e21e | 897 | Groups_t gary[NGROUPS]; |
79072805 | 898 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 899 | while (--i >= 0) |
785fb66b | 900 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
901 | } |
902 | #endif | |
155aba94 | 903 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 | 904 | break; |
cd39f2b6 | 905 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
906 | case '0': |
907 | break; | |
cd39f2b6 | 908 | #endif |
79072805 | 909 | } |
a0d0e21e | 910 | return 0; |
79072805 LW |
911 | } |
912 | ||
913 | int | |
864dbfa3 | 914 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
915 | { |
916 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
917 | ||
918 | if (uf && uf->uf_val) | |
24f81a43 | 919 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
920 | return 0; |
921 | } | |
922 | ||
923 | int | |
864dbfa3 | 924 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
925 | { |
926 | register char *s; | |
88e89b8a | 927 | char *ptr; |
5aabfad6 | 928 | STRLEN len, klen; |
1e422769 | 929 | |
a0d0e21e | 930 | s = SvPV(sv,len); |
5aabfad6 | 931 | ptr = MgPV(mg,klen); |
88e89b8a | 932 | my_setenv(ptr, s); |
1e422769 | 933 | |
a0d0e21e LW |
934 | #ifdef DYNAMIC_ENV_FETCH |
935 | /* We just undefd an environment var. Is a replacement */ | |
936 | /* waiting in the wings? */ | |
937 | if (!len) { | |
5aabfad6 | 938 | SV **valp; |
6b88bc9c | 939 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 940 | s = SvPV(*valp, len); |
a0d0e21e LW |
941 | } |
942 | #endif | |
1e422769 | 943 | |
39e571d4 | 944 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
945 | /* And you'll never guess what the dog had */ |
946 | /* in its mouth... */ | |
3280af22 | 947 | if (PL_tainting) { |
1e422769 | 948 | MgTAINTEDDIR_off(mg); |
949 | #ifdef VMS | |
5aabfad6 | 950 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 951 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 952 | Stat_t sbuf; |
1e422769 | 953 | int i = 0, j = 0; |
954 | ||
955 | do { /* DCL$PATH may be a search list */ | |
956 | while (1) { /* as may dev portion of any element */ | |
957 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
958 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
959 | cando_by_name(S_IWUSR,0,elt) ) { | |
960 | MgTAINTEDDIR_on(mg); | |
961 | return 0; | |
962 | } | |
963 | } | |
964 | if ((cp = strchr(elt, ':')) != Nullch) | |
965 | *cp = '\0'; | |
966 | if (my_trnlnm(elt, eltbuf, j++)) | |
967 | elt = eltbuf; | |
968 | else | |
969 | break; | |
970 | } | |
971 | j = 0; | |
972 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
973 | } | |
974 | #endif /* VMS */ | |
5aabfad6 | 975 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 976 | char *strend = s + len; |
463ee0b2 LW |
977 | |
978 | while (s < strend) { | |
96827780 | 979 | char tmpbuf[256]; |
c623ac67 | 980 | Stat_t st; |
5f74f29c | 981 | I32 i; |
96827780 | 982 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 983 | s, strend, ':', &i); |
463ee0b2 | 984 | s++; |
96827780 MB |
985 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
986 | || *tmpbuf != '/' | |
c6ed36e1 | 987 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 988 | MgTAINTEDDIR_on(mg); |
1e422769 | 989 | return 0; |
990 | } | |
463ee0b2 | 991 | } |
79072805 LW |
992 | } |
993 | } | |
39e571d4 | 994 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 995 | |
79072805 LW |
996 | return 0; |
997 | } | |
998 | ||
999 | int | |
864dbfa3 | 1000 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1001 | { |
2d8e6c8d GS |
1002 | STRLEN n_a; |
1003 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
1004 | return 0; |
1005 | } | |
1006 | ||
88e89b8a | 1007 | int |
864dbfa3 | 1008 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1009 | { |
1010 | #if defined(VMS) | |
cea2e8a9 | 1011 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1012 | #else |
3280af22 | 1013 | if (PL_localizing) { |
fb73857a | 1014 | HE* entry; |
2d8e6c8d | 1015 | STRLEN n_a; |
fb73857a | 1016 | magic_clear_all_env(sv,mg); |
1017 | hv_iterinit((HV*)sv); | |
155aba94 | 1018 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1019 | I32 keylen; |
1020 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 1021 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 1022 | } |
1023 | } | |
1024 | #endif | |
1025 | return 0; | |
1026 | } | |
1027 | ||
1028 | int | |
864dbfa3 | 1029 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1030 | { |
2f42fcb0 | 1031 | #ifndef PERL_MICRO |
ed79a026 | 1032 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 1033 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1034 | #else |
4efc5df6 | 1035 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1036 | PerlEnv_clearenv(); |
4efc5df6 GS |
1037 | # else |
1038 | # ifdef USE_ENVIRON_ARRAY | |
1039 | # if defined(USE_ITHREADS) | |
1040 | /* only the parent thread can clobber the process environment */ | |
1041 | if (PL_curinterp == aTHX) | |
1042 | # endif | |
1043 | { | |
1044 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
1045 | I32 i; |
1046 | ||
3280af22 | 1047 | if (environ == PL_origenviron) |
f2517201 | 1048 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1049 | else |
1050 | for (i = 0; environ[i]; i++) | |
f2517201 | 1051 | safesysfree(environ[i]); |
4efc5df6 | 1052 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1053 | |
66b1d557 | 1054 | environ[0] = Nullch; |
4efc5df6 GS |
1055 | } |
1056 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 | 1057 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
2f42fcb0 JH |
1058 | #endif /* VMS || EPOC */ |
1059 | #endif /* !PERL_MICRO */ | |
3e3baf6d | 1060 | return 0; |
66b1d557 HM |
1061 | } |
1062 | ||
2e34cc90 CL |
1063 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1064 | static int sig_handlers_initted = 0; | |
1065 | #endif | |
7719e241 | 1066 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1067 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1068 | #endif | |
2e34cc90 CL |
1069 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1070 | static int sig_defaulting[SIG_SIZE]; | |
1071 | #endif | |
85b332e2 | 1072 | |
64ca3a65 | 1073 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1074 | #ifdef HAS_SIGPROCMASK |
1075 | static void | |
1076 | restore_sigmask(pTHX_ SV *save_sv) | |
1077 | { | |
1078 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); | |
1079 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); | |
1080 | } | |
1081 | #endif | |
66b1d557 | 1082 | int |
864dbfa3 | 1083 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1084 | { |
1085 | I32 i; | |
2d8e6c8d | 1086 | STRLEN n_a; |
88e89b8a | 1087 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1088 | i = whichsig(MgPV(mg,n_a)); |
e02bfb16 | 1089 | if (i > 0) { |
22c35a8c GS |
1090 | if(PL_psig_ptr[i]) |
1091 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1092 | else { |
85b332e2 | 1093 | Sighandler_t sigstate; |
2e34cc90 | 1094 | sigstate = rsignal_state(i); |
23ada85b | 1095 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1096 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1097 | #endif | |
1098 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1099 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1100 | #endif |
88e89b8a | 1101 | /* cache state so we don't fetch it again */ |
ff68c719 | 1102 | if(sigstate == SIG_IGN) |
88e89b8a | 1103 | sv_setpv(sv,"IGNORE"); |
1104 | else | |
3280af22 | 1105 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1106 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1107 | SvTEMP_off(sv); |
1108 | } | |
1109 | } | |
1110 | return 0; | |
1111 | } | |
1112 | int | |
864dbfa3 | 1113 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1114 | { |
2d4fcd5e AJ |
1115 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1116 | * refactoring might be in order. | |
1117 | */ | |
1118 | register char *s; | |
2d8e6c8d | 1119 | STRLEN n_a; |
2d4fcd5e AJ |
1120 | SV* to_dec; |
1121 | s = MgPV(mg,n_a); | |
1122 | if (*s == '_') { | |
1123 | SV** svp; | |
1124 | if (strEQ(s,"__DIE__")) | |
1125 | svp = &PL_diehook; | |
1126 | else if (strEQ(s,"__WARN__")) | |
1127 | svp = &PL_warnhook; | |
1128 | else | |
1129 | Perl_croak(aTHX_ "No such hook: %s", s); | |
1130 | if (*svp) { | |
1131 | to_dec = *svp; | |
1132 | *svp = 0; | |
1133 | SvREFCNT_dec(to_dec); | |
1134 | } | |
1135 | } | |
1136 | else { | |
1137 | I32 i; | |
1138 | /* Are we clearing a signal entry? */ | |
1139 | i = whichsig(s); | |
e02bfb16 | 1140 | if (i > 0) { |
2d4fcd5e AJ |
1141 | #ifdef HAS_SIGPROCMASK |
1142 | sigset_t set, save; | |
1143 | SV* save_sv; | |
1144 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1145 | sigemptyset(&set); | |
1146 | sigaddset(&set,i); | |
1147 | sigprocmask(SIG_BLOCK, &set, &save); | |
1148 | ENTER; | |
1149 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1150 | SAVEFREESV(save_sv); | |
1151 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1152 | #endif | |
1153 | PERL_ASYNC_CHECK(); | |
1154 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
1155 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1156 | #endif | |
1157 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1158 | sig_defaulting[i] = 1; | |
5c1546dc | 1159 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1160 | #else |
1161 | (void)rsignal(i, SIG_DFL); | |
1162 | #endif | |
1163 | if(PL_psig_name[i]) { | |
1164 | SvREFCNT_dec(PL_psig_name[i]); | |
1165 | PL_psig_name[i]=0; | |
1166 | } | |
1167 | if(PL_psig_ptr[i]) { | |
1168 | to_dec=PL_psig_ptr[i]; | |
1169 | PL_psig_ptr[i]=0; | |
1170 | LEAVE; | |
1171 | SvREFCNT_dec(to_dec); | |
1172 | } | |
1173 | else | |
1174 | LEAVE; | |
1175 | } | |
88e89b8a | 1176 | } |
1177 | return 0; | |
1178 | } | |
3d37d572 | 1179 | |
0a8e0eff NIS |
1180 | void |
1181 | Perl_raise_signal(pTHX_ int sig) | |
1182 | { | |
1183 | /* Set a flag to say this signal is pending */ | |
1184 | PL_psig_pend[sig]++; | |
1185 | /* And one to say _a_ signal is pending */ | |
1186 | PL_sig_pending = 1; | |
1187 | } | |
1188 | ||
1189 | Signal_t | |
1190 | Perl_csighandler(int sig) | |
1191 | { | |
1018e26f NIS |
1192 | #ifdef PERL_GET_SIG_CONTEXT |
1193 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1194 | #else | |
85b332e2 CL |
1195 | dTHX; |
1196 | #endif | |
23ada85b | 1197 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc | 1198 | (void) rsignal(sig, PL_csighandlerp); |
85b332e2 CL |
1199 | if (sig_ignoring[sig]) return; |
1200 | #endif | |
2e34cc90 | 1201 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1202 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1203 | #ifdef KILL_BY_SIGPRC |
1204 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1205 | #else | |
1206 | exit(1); | |
1207 | #endif | |
1208 | #endif | |
4ffa73a3 JH |
1209 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1210 | /* Call the perl level handler now-- | |
1211 | * with risk we may be in malloc() etc. */ | |
1212 | (*PL_sighandlerp)(sig); | |
1213 | else | |
1214 | Perl_raise_signal(aTHX_ sig); | |
0a8e0eff NIS |
1215 | } |
1216 | ||
2e34cc90 CL |
1217 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1218 | void | |
1219 | Perl_csighandler_init(void) | |
1220 | { | |
1221 | int sig; | |
1222 | if (sig_handlers_initted) return; | |
1223 | ||
1224 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1225 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1226 | dTHX; |
2e34cc90 | 1227 | sig_defaulting[sig] = 1; |
5c1546dc | 1228 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1229 | #endif |
1230 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1231 | sig_ignoring[sig] = 0; | |
1232 | #endif | |
1233 | } | |
1234 | sig_handlers_initted = 1; | |
1235 | } | |
1236 | #endif | |
1237 | ||
0a8e0eff NIS |
1238 | void |
1239 | Perl_despatch_signals(pTHX) | |
1240 | { | |
1241 | int sig; | |
1242 | PL_sig_pending = 0; | |
1243 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1244 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1245 | PERL_BLOCKSIG_ADD(set, sig); |
1246 | PL_psig_pend[sig] = 0; | |
1247 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1248 | (*PL_sighandlerp)(sig); |
25da4428 | 1249 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1250 | } |
1251 | } | |
1252 | } | |
1253 | ||
85e6fe83 | 1254 | int |
864dbfa3 | 1255 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1256 | { |
1257 | register char *s; | |
1258 | I32 i; | |
b7953727 | 1259 | SV** svp = 0; |
2d4fcd5e AJ |
1260 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1261 | * effects (due to closures). We must make sure that the new disposition | |
1262 | * is in place before it is called. | |
1263 | */ | |
1264 | SV* to_dec = 0; | |
e72dc28c | 1265 | STRLEN len; |
2d4fcd5e AJ |
1266 | #ifdef HAS_SIGPROCMASK |
1267 | sigset_t set, save; | |
1268 | SV* save_sv; | |
1269 | #endif | |
a0d0e21e | 1270 | |
e72dc28c | 1271 | s = MgPV(mg,len); |
748a9306 LW |
1272 | if (*s == '_') { |
1273 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1274 | svp = &PL_diehook; |
748a9306 | 1275 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1276 | svp = &PL_warnhook; |
748a9306 | 1277 | else |
cea2e8a9 | 1278 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1279 | i = 0; |
4633a7c4 | 1280 | if (*svp) { |
2d4fcd5e | 1281 | to_dec = *svp; |
4633a7c4 LW |
1282 | *svp = 0; |
1283 | } | |
748a9306 LW |
1284 | } |
1285 | else { | |
1286 | i = whichsig(s); /* ...no, a brick */ | |
e02bfb16 | 1287 | if (i < 0) { |
e476b1b5 | 1288 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1289 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1290 | return 0; |
1291 | } | |
2d4fcd5e AJ |
1292 | #ifdef HAS_SIGPROCMASK |
1293 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1294 | sigemptyset(&set); | |
1295 | sigaddset(&set,i); | |
1296 | sigprocmask(SIG_BLOCK, &set, &save); | |
1297 | ENTER; | |
1298 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1299 | SAVEFREESV(save_sv); | |
1300 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1301 | #endif | |
1302 | PERL_ASYNC_CHECK(); | |
2e34cc90 CL |
1303 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1304 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1305 | #endif | |
23ada85b | 1306 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1307 | sig_ignoring[i] = 0; |
1308 | #endif | |
2e34cc90 | 1309 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
2d4fcd5e | 1310 | sig_defaulting[i] = 0; |
2e34cc90 | 1311 | #endif |
22c35a8c | 1312 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1313 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1314 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1315 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1316 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1317 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1318 | } |
a0d0e21e | 1319 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1320 | if (i) { |
5c1546dc | 1321 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1322 | #ifdef HAS_SIGPROCMASK |
1323 | LEAVE; | |
1324 | #endif | |
1325 | } | |
748a9306 LW |
1326 | else |
1327 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1328 | if(to_dec) |
1329 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1330 | return 0; |
1331 | } | |
e72dc28c | 1332 | s = SvPV_force(sv,len); |
748a9306 | 1333 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1334 | if (i) { |
23ada85b | 1335 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 1336 | sig_ignoring[i] = 1; |
5c1546dc | 1337 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1338 | #else |
ff68c719 | 1339 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1340 | #endif |
2d4fcd5e | 1341 | } |
748a9306 LW |
1342 | } |
1343 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1344 | if (i) | |
2e34cc90 CL |
1345 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1346 | { | |
1347 | sig_defaulting[i] = 1; | |
5c1546dc | 1348 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1349 | } |
1350 | #else | |
ff68c719 | 1351 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1352 | #endif |
748a9306 | 1353 | } |
79072805 | 1354 | else { |
5aabfad6 | 1355 | /* |
1356 | * We should warn if HINT_STRICT_REFS, but without | |
1357 | * access to a known hint bit in a known OP, we can't | |
1358 | * tell whether HINT_STRICT_REFS is in force or not. | |
1359 | */ | |
46fc3d4c | 1360 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1361 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1362 | if (i) |
5c1546dc | 1363 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1364 | else |
1365 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1366 | } |
2d4fcd5e AJ |
1367 | #ifdef HAS_SIGPROCMASK |
1368 | if(i) | |
1369 | LEAVE; | |
1370 | #endif | |
1371 | if(to_dec) | |
1372 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1373 | return 0; |
1374 | } | |
64ca3a65 | 1375 | #endif /* !PERL_MICRO */ |
79072805 LW |
1376 | |
1377 | int | |
864dbfa3 | 1378 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1379 | { |
3280af22 | 1380 | PL_sub_generation++; |
463ee0b2 LW |
1381 | return 0; |
1382 | } | |
1383 | ||
1384 | int | |
864dbfa3 | 1385 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1386 | { |
a0d0e21e | 1387 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1388 | PL_amagic_generation++; |
463ee0b2 | 1389 | |
a0d0e21e LW |
1390 | return 0; |
1391 | } | |
463ee0b2 | 1392 | |
946ec16e | 1393 | int |
864dbfa3 | 1394 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1395 | { |
1396 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1397 | I32 i = 0; |
7719e241 | 1398 | |
6ff81951 | 1399 | if (hv) { |
497b47a8 JH |
1400 | (void) hv_iterinit(hv); |
1401 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1402 | i = HvKEYS(hv); | |
1403 | else { | |
1404 | while (hv_iternext(hv)) | |
1405 | i++; | |
1406 | } | |
6ff81951 GS |
1407 | } |
1408 | ||
1409 | sv_setiv(sv, (IV)i); | |
1410 | return 0; | |
1411 | } | |
1412 | ||
1413 | int | |
864dbfa3 | 1414 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1415 | { |
1416 | if (LvTARG(sv)) { | |
1417 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1418 | } |
1419 | return 0; | |
ac27b0f5 | 1420 | } |
946ec16e | 1421 | |
e336de0d | 1422 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1423 | STATIC int |
cea2e8a9 | 1424 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1425 | { |
1426 | dSP; | |
463ee0b2 | 1427 | |
924508f0 GS |
1428 | PUSHMARK(SP); |
1429 | EXTEND(SP, n); | |
33c27489 | 1430 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1431 | if (n > 1) { |
93965878 | 1432 | if (mg->mg_ptr) { |
565764a8 | 1433 | if (mg->mg_len >= 0) |
79cb57f6 | 1434 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1435 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1436 | PUSHs((SV*)mg->mg_ptr); |
1437 | } | |
14befaf4 | 1438 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1439 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1440 | } |
1441 | } | |
1442 | if (n > 2) { | |
1443 | PUSHs(val); | |
88e89b8a | 1444 | } |
463ee0b2 LW |
1445 | PUTBACK; |
1446 | ||
864dbfa3 | 1447 | return call_method(meth, flags); |
946ec16e | 1448 | } |
1449 | ||
76e3520e | 1450 | STATIC int |
cea2e8a9 | 1451 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1452 | { |
1453 | dSP; | |
463ee0b2 | 1454 | |
a0d0e21e LW |
1455 | ENTER; |
1456 | SAVETMPS; | |
e788e7d3 | 1457 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1458 | |
33c27489 | 1459 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1460 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1461 | } |
463ee0b2 | 1462 | |
d3acc0f7 | 1463 | POPSTACK; |
a0d0e21e LW |
1464 | FREETMPS; |
1465 | LEAVE; | |
1466 | return 0; | |
1467 | } | |
463ee0b2 | 1468 | |
a0d0e21e | 1469 | int |
864dbfa3 | 1470 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1471 | { |
a0d0e21e LW |
1472 | if (mg->mg_ptr) |
1473 | mg->mg_flags |= MGf_GSKIP; | |
58f82c5c | 1474 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1475 | return 0; |
1476 | } | |
1477 | ||
1478 | int | |
864dbfa3 | 1479 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1480 | { |
1481 | dSP; | |
a60c0954 | 1482 | ENTER; |
e788e7d3 | 1483 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1484 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1485 | POPSTACK; |
a60c0954 | 1486 | LEAVE; |
463ee0b2 LW |
1487 | return 0; |
1488 | } | |
1489 | ||
1490 | int | |
864dbfa3 | 1491 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1492 | { |
a0d0e21e LW |
1493 | return magic_methpack(sv,mg,"DELETE"); |
1494 | } | |
463ee0b2 | 1495 | |
93965878 NIS |
1496 | |
1497 | U32 | |
864dbfa3 | 1498 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1499 | { |
e336de0d | 1500 | dSP; |
93965878 NIS |
1501 | U32 retval = 0; |
1502 | ||
1503 | ENTER; | |
1504 | SAVETMPS; | |
e788e7d3 | 1505 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1506 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1507 | sv = *PL_stack_sp--; |
a60c0954 | 1508 | retval = (U32) SvIV(sv)-1; |
93965878 | 1509 | } |
d3acc0f7 | 1510 | POPSTACK; |
93965878 NIS |
1511 | FREETMPS; |
1512 | LEAVE; | |
1513 | return retval; | |
1514 | } | |
1515 | ||
cea2e8a9 GS |
1516 | int |
1517 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1518 | { |
1519 | dSP; | |
463ee0b2 | 1520 | |
e336de0d | 1521 | ENTER; |
e788e7d3 | 1522 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1523 | PUSHMARK(SP); |
33c27489 | 1524 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1525 | PUTBACK; |
864dbfa3 | 1526 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1527 | POPSTACK; |
a60c0954 | 1528 | LEAVE; |
463ee0b2 LW |
1529 | return 0; |
1530 | } | |
1531 | ||
1532 | int | |
864dbfa3 | 1533 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1534 | { |
463ee0b2 | 1535 | dSP; |
dff6d3cd | 1536 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1537 | |
1538 | ENTER; | |
a0d0e21e | 1539 | SAVETMPS; |
e788e7d3 | 1540 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1541 | PUSHMARK(SP); |
1542 | EXTEND(SP, 2); | |
33c27489 | 1543 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1544 | if (SvOK(key)) |
1545 | PUSHs(key); | |
1546 | PUTBACK; | |
1547 | ||
864dbfa3 | 1548 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1549 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1550 | |
d3acc0f7 | 1551 | POPSTACK; |
a0d0e21e LW |
1552 | FREETMPS; |
1553 | LEAVE; | |
79072805 LW |
1554 | return 0; |
1555 | } | |
1556 | ||
1557 | int | |
864dbfa3 | 1558 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1559 | { |
1560 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1561 | } |
a0d0e21e LW |
1562 | |
1563 | int | |
864dbfa3 | 1564 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1565 | { |
1566 | OP *o; | |
1567 | I32 i; | |
1568 | GV* gv; | |
1569 | SV** svp; | |
2d8e6c8d | 1570 | STRLEN n_a; |
79072805 | 1571 | |
3280af22 | 1572 | gv = PL_DBline; |
79072805 | 1573 | i = SvTRUE(sv); |
188ea221 | 1574 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1575 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 DM |
1576 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1577 | /* set or clear breakpoint in the relevant control op */ | |
1578 | if (i) | |
1579 | o->op_flags |= OPf_SPECIAL; | |
1580 | else | |
1581 | o->op_flags &= ~OPf_SPECIAL; | |
1582 | } | |
79072805 LW |
1583 | return 0; |
1584 | } | |
1585 | ||
1586 | int | |
864dbfa3 | 1587 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1588 | { |
3280af22 | 1589 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1590 | return 0; |
1591 | } | |
1592 | ||
1593 | int | |
864dbfa3 | 1594 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1595 | { |
3280af22 | 1596 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1597 | return 0; |
1598 | } | |
1599 | ||
1600 | int | |
864dbfa3 | 1601 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1602 | { |
1603 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1604 | |
a0d0e21e | 1605 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1606 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1607 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1608 | I32 i = mg->mg_len; |
7e2040f0 | 1609 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1610 | sv_pos_b2u(lsv, &i); |
1611 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1612 | return 0; |
1613 | } | |
1614 | } | |
1615 | (void)SvOK_off(sv); | |
1616 | return 0; | |
1617 | } | |
1618 | ||
1619 | int | |
864dbfa3 | 1620 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1621 | { |
1622 | SV* lsv = LvTARG(sv); | |
1623 | SSize_t pos; | |
1624 | STRLEN len; | |
c00206c8 | 1625 | STRLEN ulen = 0; |
a0d0e21e LW |
1626 | |
1627 | mg = 0; | |
ac27b0f5 | 1628 | |
a0d0e21e | 1629 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1630 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1631 | if (!mg) { |
1632 | if (!SvOK(sv)) | |
1633 | return 0; | |
14befaf4 DM |
1634 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1635 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1636 | } |
1637 | else if (!SvOK(sv)) { | |
565764a8 | 1638 | mg->mg_len = -1; |
a0d0e21e LW |
1639 | return 0; |
1640 | } | |
1641 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1642 | ||
c485e607 | 1643 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1644 | |
7e2040f0 | 1645 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1646 | ulen = sv_len_utf8(lsv); |
1647 | if (ulen) | |
1648 | len = ulen; | |
a0ed51b3 LW |
1649 | } |
1650 | ||
a0d0e21e LW |
1651 | if (pos < 0) { |
1652 | pos += len; | |
1653 | if (pos < 0) | |
1654 | pos = 0; | |
1655 | } | |
eb160463 | 1656 | else if (pos > (SSize_t)len) |
a0d0e21e | 1657 | pos = len; |
a0ed51b3 LW |
1658 | |
1659 | if (ulen) { | |
1660 | I32 p = pos; | |
1661 | sv_pos_u2b(lsv, &p, 0); | |
1662 | pos = p; | |
1663 | } | |
727405f8 | 1664 | |
565764a8 | 1665 | mg->mg_len = pos; |
71be2cbc | 1666 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1667 | |
79072805 LW |
1668 | return 0; |
1669 | } | |
1670 | ||
1671 | int | |
864dbfa3 | 1672 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1673 | { |
8646b087 | 1674 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1675 | SvFAKE_off(sv); | |
946ec16e | 1676 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1677 | SvFAKE_on(sv); |
1678 | } | |
1679 | else | |
946ec16e | 1680 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1681 | return 0; |
1682 | } | |
1683 | ||
1684 | int | |
864dbfa3 | 1685 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1686 | { |
1687 | register char *s; | |
1688 | GV* gv; | |
2d8e6c8d | 1689 | STRLEN n_a; |
79072805 LW |
1690 | |
1691 | if (!SvOK(sv)) | |
1692 | return 0; | |
2d8e6c8d | 1693 | s = SvPV(sv, n_a); |
79072805 LW |
1694 | if (*s == '*' && s[1]) |
1695 | s++; | |
85e6fe83 | 1696 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1697 | if (sv == (SV*)gv) |
1698 | return 0; | |
1699 | if (GvGP(sv)) | |
88e89b8a | 1700 | gp_free((GV*)sv); |
79072805 | 1701 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1702 | return 0; |
1703 | } | |
1704 | ||
1705 | int | |
864dbfa3 | 1706 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1707 | { |
1708 | STRLEN len; | |
1709 | SV *lsv = LvTARG(sv); | |
1710 | char *tmps = SvPV(lsv,len); | |
1711 | I32 offs = LvTARGOFF(sv); | |
1712 | I32 rem = LvTARGLEN(sv); | |
1713 | ||
9aa983d2 JH |
1714 | if (SvUTF8(lsv)) |
1715 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1716 | if (offs > (I32)len) |
6ff81951 | 1717 | offs = len; |
eb160463 | 1718 | if (rem + offs > (I32)len) |
6ff81951 GS |
1719 | rem = len - offs; |
1720 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1721 | if (SvUTF8(lsv)) |
2ef4b674 | 1722 | SvUTF8_on(sv); |
6ff81951 GS |
1723 | return 0; |
1724 | } | |
1725 | ||
1726 | int | |
864dbfa3 | 1727 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1728 | { |
9aa983d2 JH |
1729 | STRLEN len; |
1730 | char *tmps = SvPV(sv, len); | |
1731 | SV *lsv = LvTARG(sv); | |
1732 | I32 lvoff = LvTARGOFF(sv); | |
1733 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1734 | |
1aa99e6b | 1735 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1736 | sv_utf8_upgrade(lsv); |
1737 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1738 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1739 | SvUTF8_on(lsv); | |
1740 | } | |
9bf12eaf | 1741 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1742 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1743 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1744 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1745 | Safefree(tmps); | |
1aa99e6b IH |
1746 | } |
1747 | else | |
9aa983d2 | 1748 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1749 | |
79072805 LW |
1750 | return 0; |
1751 | } | |
1752 | ||
1753 | int | |
864dbfa3 | 1754 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1755 | { |
565764a8 | 1756 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1757 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1758 | return 0; |
1759 | } | |
1760 | ||
1761 | int | |
864dbfa3 | 1762 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1763 | { |
3280af22 NIS |
1764 | if (PL_localizing) { |
1765 | if (PL_localizing == 1) | |
565764a8 | 1766 | mg->mg_len <<= 1; |
748a9306 | 1767 | else |
565764a8 | 1768 | mg->mg_len >>= 1; |
a0d0e21e | 1769 | } |
3280af22 | 1770 | else if (PL_tainted) |
565764a8 | 1771 | mg->mg_len |= 1; |
748a9306 | 1772 | else |
565764a8 | 1773 | mg->mg_len &= ~1; |
463ee0b2 LW |
1774 | return 0; |
1775 | } | |
1776 | ||
1777 | int | |
864dbfa3 | 1778 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1779 | { |
1780 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1781 | |
1782 | if (!lsv) { | |
155aba94 | 1783 | (void)SvOK_off(sv); |
6ff81951 GS |
1784 | return 0; |
1785 | } | |
6ff81951 | 1786 | |
81e118e0 | 1787 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1788 | return 0; |
1789 | } | |
1790 | ||
1791 | int | |
864dbfa3 | 1792 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1793 | { |
1794 | do_vecset(sv); /* XXX slurp this routine */ | |
1795 | return 0; | |
1796 | } | |
1797 | ||
1798 | int | |
864dbfa3 | 1799 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1800 | { |
71be2cbc | 1801 | SV *targ = Nullsv; |
5f05dabc | 1802 | if (LvTARGLEN(sv)) { |
68dc0745 | 1803 | if (mg->mg_obj) { |
74e13ce4 | 1804 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1805 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1806 | if (he) | |
1807 | targ = HeVAL(he); | |
68dc0745 | 1808 | } |
1809 | else { | |
3c78fafa | 1810 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1811 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1812 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1813 | } | |
3280af22 | 1814 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1815 | /* somebody else defined it for us */ |
1816 | SvREFCNT_dec(LvTARG(sv)); | |
1817 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1818 | LvTARGLEN(sv) = 0; | |
1819 | SvREFCNT_dec(mg->mg_obj); | |
1820 | mg->mg_obj = Nullsv; | |
1821 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1822 | } | |
5f05dabc | 1823 | } |
71be2cbc | 1824 | else |
1825 | targ = LvTARG(sv); | |
3280af22 | 1826 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1827 | return 0; |
1828 | } | |
1829 | ||
1830 | int | |
864dbfa3 | 1831 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1832 | { |
1833 | if (LvTARGLEN(sv)) | |
68dc0745 | 1834 | vivify_defelem(sv); |
1835 | if (LvTARG(sv)) { | |
5f05dabc | 1836 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1837 | SvSETMAGIC(LvTARG(sv)); |
1838 | } | |
5f05dabc | 1839 | return 0; |
1840 | } | |
1841 | ||
71be2cbc | 1842 | void |
864dbfa3 | 1843 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1844 | { |
74e13ce4 GS |
1845 | MAGIC *mg; |
1846 | SV *value = Nullsv; | |
71be2cbc | 1847 | |
14befaf4 | 1848 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1849 | return; |
68dc0745 | 1850 | if (mg->mg_obj) { |
74e13ce4 | 1851 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1852 | STRLEN n_a; |
6d822dc4 MS |
1853 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1854 | if (he) | |
1855 | value = HeVAL(he); | |
3280af22 | 1856 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1857 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1858 | } |
68dc0745 | 1859 | else { |
1860 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1861 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1862 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1863 | else { | |
1864 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1865 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1866 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1867 | } |
1868 | } | |
3e3baf6d | 1869 | (void)SvREFCNT_inc(value); |
68dc0745 | 1870 | SvREFCNT_dec(LvTARG(sv)); |
1871 | LvTARG(sv) = value; | |
71be2cbc | 1872 | LvTARGLEN(sv) = 0; |
68dc0745 | 1873 | SvREFCNT_dec(mg->mg_obj); |
1874 | mg->mg_obj = Nullsv; | |
1875 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1876 | } |
1877 | ||
1878 | int | |
864dbfa3 | 1879 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1880 | { |
1881 | AV *av = (AV*)mg->mg_obj; | |
1882 | SV **svp = AvARRAY(av); | |
1883 | I32 i = AvFILLp(av); | |
1884 | while (i >= 0) { | |
1885 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1886 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1887 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1888 | /* XXX Should we check that it hasn't changed? */ |
1889 | SvRV(svp[i]) = 0; | |
155aba94 | 1890 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1891 | SvWEAKREF_off(svp[i]); |
1892 | svp[i] = &PL_sv_undef; | |
1893 | } | |
1894 | i--; | |
1895 | } | |
d99b02a1 | 1896 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
1897 | return 0; |
1898 | } | |
1899 | ||
1900 | int | |
864dbfa3 | 1901 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1902 | { |
565764a8 | 1903 | mg->mg_len = -1; |
c6496cc7 | 1904 | SvSCREAM_off(sv); |
93a17b20 LW |
1905 | return 0; |
1906 | } | |
1907 | ||
1908 | int | |
864dbfa3 | 1909 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1910 | { |
14befaf4 | 1911 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1912 | SvVALID_off(sv); |
1913 | return 0; | |
1914 | } | |
1915 | ||
1916 | int | |
864dbfa3 | 1917 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1918 | { |
14befaf4 | 1919 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1920 | SvCOMPILED_off(sv); |
1921 | return 0; | |
1922 | } | |
1923 | ||
1924 | int | |
864dbfa3 | 1925 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1926 | { |
1927 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1928 | ||
1929 | if (uf && uf->uf_set) | |
24f81a43 | 1930 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1931 | return 0; |
1932 | } | |
1933 | ||
c277df42 | 1934 | int |
faf82a0b AE |
1935 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
1936 | { | |
1937 | sv_unmagic(sv, PERL_MAGIC_qr); | |
1938 | return 0; | |
1939 | } | |
1940 | ||
1941 | int | |
864dbfa3 | 1942 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1943 | { |
1944 | regexp *re = (regexp *)mg->mg_obj; | |
1945 | ReREFCNT_dec(re); | |
1946 | return 0; | |
1947 | } | |
1948 | ||
7a4c00b4 | 1949 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1950 | int |
864dbfa3 | 1951 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1952 | { |
1953 | /* | |
838b5b74 | 1954 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1955 | * and vanished with a faint plop. |
1956 | */ | |
7a4c00b4 | 1957 | if (mg->mg_ptr) { |
1958 | Safefree(mg->mg_ptr); | |
1959 | mg->mg_ptr = NULL; | |
565764a8 | 1960 | mg->mg_len = -1; |
7a4c00b4 | 1961 | } |
bbce6d69 | 1962 | return 0; |
1963 | } | |
7a4c00b4 | 1964 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1965 | |
7e8c5dac HS |
1966 | /* Just clear the UTF-8 cache data. */ |
1967 | int | |
1968 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
1969 | { | |
1970 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ | |
1971 | mg->mg_ptr = 0; | |
1972 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
1973 | return 0; | |
1974 | } | |
1975 | ||
bbce6d69 | 1976 | int |
864dbfa3 | 1977 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1978 | { |
1979 | register char *s; | |
1980 | I32 i; | |
8990e307 | 1981 | STRLEN len; |
79072805 | 1982 | switch (*mg->mg_ptr) { |
748a9306 | 1983 | case '\001': /* ^A */ |
3280af22 | 1984 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1985 | break; |
49460fe6 | 1986 | case '\003': /* ^C */ |
eb160463 | 1987 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
1988 | break; |
1989 | ||
79072805 | 1990 | case '\004': /* ^D */ |
b4ab917c DM |
1991 | #ifdef DEBUGGING |
1992 | s = SvPV_nolen(sv); | |
1993 | PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG; | |
79072805 | 1994 | DEBUG_x(dump_all()); |
b4ab917c DM |
1995 | #else |
1996 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
1997 | #endif | |
79072805 | 1998 | break; |
28f23441 | 1999 | case '\005': /* ^E */ |
d0063567 | 2000 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2001 | #ifdef MACOS_TRADITIONAL |
d0063567 | 2002 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2003 | #else |
cd39f2b6 | 2004 | # ifdef VMS |
d0063567 | 2005 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2006 | # else |
cd39f2b6 | 2007 | # ifdef WIN32 |
d0063567 | 2008 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2009 | # else |
9fed8b87 | 2010 | # ifdef OS2 |
d0063567 | 2011 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2012 | # else |
d0063567 DK |
2013 | /* will anyone ever use this? */ |
2014 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2015 | # endif |
048c1ddf IZ |
2016 | # endif |
2017 | # endif | |
22fae026 | 2018 | #endif |
d0063567 DK |
2019 | } |
2020 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2021 | if (PL_encoding) | |
2022 | SvREFCNT_dec(PL_encoding); | |
2023 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2024 | PL_encoding = newSVsv(sv); | |
2025 | } | |
2026 | else { | |
2027 | PL_encoding = Nullsv; | |
2028 | } | |
2029 | } | |
2030 | break; | |
79072805 | 2031 | case '\006': /* ^F */ |
3280af22 | 2032 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2033 | break; |
a0d0e21e | 2034 | case '\010': /* ^H */ |
3280af22 | 2035 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2036 | break; |
9d116dd7 | 2037 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2038 | if (PL_inplace) |
2039 | Safefree(PL_inplace); | |
79072805 | 2040 | if (SvOK(sv)) |
2d8e6c8d | 2041 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 2042 | else |
3280af22 | 2043 | PL_inplace = Nullch; |
79072805 | 2044 | break; |
28f23441 | 2045 | case '\017': /* ^O */ |
ac27b0f5 NIS |
2046 | if (*(mg->mg_ptr+1) == '\0') { |
2047 | if (PL_osname) | |
2048 | Safefree(PL_osname); | |
2049 | if (SvOK(sv)) | |
2050 | PL_osname = savepv(SvPV(sv,len)); | |
2051 | else | |
2052 | PL_osname = Nullch; | |
2053 | } | |
2054 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2055 | if (!PL_compiling.cop_io) | |
2056 | PL_compiling.cop_io = newSVsv(sv); | |
2057 | else | |
2058 | sv_setsv(PL_compiling.cop_io,sv); | |
2059 | } | |
28f23441 | 2060 | break; |
79072805 | 2061 | case '\020': /* ^P */ |
3280af22 | 2062 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
2063 | if (PL_perldb && !PL_DBsingle) |
2064 | init_debugger(); | |
79072805 LW |
2065 | break; |
2066 | case '\024': /* ^T */ | |
88e89b8a | 2067 | #ifdef BIG_TIME |
6b88bc9c | 2068 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2069 | #else |
3280af22 | 2070 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2071 | #endif |
79072805 | 2072 | break; |
fde18df1 | 2073 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2074 | if (*(mg->mg_ptr+1) == '\0') { |
2075 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2076 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2077 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2078 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2079 | } |
599cee73 | 2080 | } |
0a378802 | 2081 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2082 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2083 | if (!SvPOK(sv) && PL_localizing) { |
2084 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2085 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2086 | break; |
2087 | } | |
f4fc7782 | 2088 | { |
b5477537 | 2089 | STRLEN len, i; |
d3a7d8c7 | 2090 | int accumulate = 0 ; |
f4fc7782 | 2091 | int any_fatals = 0 ; |
d3a7d8c7 | 2092 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
2093 | for (i = 0 ; i < len ; ++i) { |
2094 | accumulate |= ptr[i] ; | |
2095 | any_fatals |= (ptr[i] & 0xAA) ; | |
2096 | } | |
d3a7d8c7 GS |
2097 | if (!accumulate) |
2098 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2099 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2100 | PL_compiling.cop_warnings = pWARN_ALL; | |
2101 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2102 | } |
d3a7d8c7 GS |
2103 | else { |
2104 | if (specialWARN(PL_compiling.cop_warnings)) | |
2105 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2106 | else | |
2107 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2108 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2109 | PL_dowarn |= G_WARN_ONCE ; | |
2110 | } | |
f4fc7782 | 2111 | |
d3a7d8c7 | 2112 | } |
4438c4b7 | 2113 | } |
971a9dd3 | 2114 | } |
79072805 LW |
2115 | break; |
2116 | case '.': | |
3280af22 NIS |
2117 | if (PL_localizing) { |
2118 | if (PL_localizing == 1) | |
7766f137 | 2119 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2120 | } |
3280af22 | 2121 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2122 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2123 | break; |
2124 | case '^': | |
3280af22 | 2125 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2126 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2127 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2128 | break; |
2129 | case '~': | |
3280af22 | 2130 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2131 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2132 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2133 | break; |
2134 | case '=': | |
632db599 | 2135 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2136 | break; |
2137 | case '-': | |
632db599 | 2138 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2139 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2140 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2141 | break; |
2142 | case '%': | |
632db599 | 2143 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2144 | break; |
2145 | case '|': | |
4b65379b | 2146 | { |
3280af22 | 2147 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2148 | if(!io) |
2149 | break; | |
4b65379b CS |
2150 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2151 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2152 | else { | |
2153 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2154 | PerlIO *ofp = IoOFP(io); | |
2155 | if (ofp) | |
2156 | (void)PerlIO_flush(ofp); | |
2157 | IoFLAGS(io) |= IOf_FLUSH; | |
2158 | } | |
2159 | } | |
79072805 LW |
2160 | } |
2161 | break; | |
79072805 | 2162 | case '/': |
3280af22 | 2163 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2164 | PL_rs = newSVsv(sv); |
79072805 LW |
2165 | break; |
2166 | case '\\': | |
7889fe52 NIS |
2167 | if (PL_ors_sv) |
2168 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2169 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2170 | PL_ors_sv = newSVsv(sv); |
009c130f | 2171 | } |
e3c19b7b | 2172 | else { |
7889fe52 | 2173 | PL_ors_sv = Nullsv; |
e3c19b7b | 2174 | } |
79072805 LW |
2175 | break; |
2176 | case ',': | |
7889fe52 NIS |
2177 | if (PL_ofs_sv) |
2178 | SvREFCNT_dec(PL_ofs_sv); | |
2179 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2180 | PL_ofs_sv = newSVsv(sv); | |
2181 | } | |
2182 | else { | |
2183 | PL_ofs_sv = Nullsv; | |
2184 | } | |
79072805 LW |
2185 | break; |
2186 | case '#': | |
3280af22 NIS |
2187 | if (PL_ofmt) |
2188 | Safefree(PL_ofmt); | |
2d8e6c8d | 2189 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2190 | break; |
2191 | case '[': | |
3280af22 | 2192 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2193 | break; |
2194 | case '?': | |
ff0cee69 | 2195 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2196 | if (PL_localizing == 2) { |
2197 | PL_statusvalue = LvTARGOFF(sv); | |
2198 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2199 | } |
2200 | else | |
2201 | #endif | |
2202 | #ifdef VMSISH_STATUS | |
2203 | if (VMSISH_STATUS) | |
2204 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2205 | else | |
2206 | #endif | |
2207 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2208 | break; |
2209 | case '!': | |
93189314 JH |
2210 | { |
2211 | #ifdef VMS | |
2212 | # define PERL_VMS_BANG vaxc$errno | |
2213 | #else | |
2214 | # define PERL_VMS_BANG 0 | |
2215 | #endif | |
91487cfc | 2216 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2217 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2218 | } | |
79072805 LW |
2219 | break; |
2220 | case '<': | |
3280af22 NIS |
2221 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2222 | if (PL_delaymagic) { | |
2223 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2224 | break; /* don't do magic till later */ |
2225 | } | |
2226 | #ifdef HAS_SETRUID | |
b28d0864 | 2227 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2228 | #else |
2229 | #ifdef HAS_SETREUID | |
3280af22 | 2230 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2231 | #else |
85e6fe83 | 2232 | #ifdef HAS_SETRESUID |
b28d0864 | 2233 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2234 | #else |
b28d0864 NIS |
2235 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2236 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2237 | else { |
d8eceb89 | 2238 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2239 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2240 | } |
79072805 LW |
2241 | #endif |
2242 | #endif | |
85e6fe83 | 2243 | #endif |
d8eceb89 | 2244 | PL_uid = PerlProc_getuid(); |
3280af22 | 2245 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2246 | break; |
2247 | case '>': | |
3280af22 NIS |
2248 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2249 | if (PL_delaymagic) { | |
2250 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2251 | break; /* don't do magic till later */ |
2252 | } | |
2253 | #ifdef HAS_SETEUID | |
3280af22 | 2254 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2255 | #else |
2256 | #ifdef HAS_SETREUID | |
b28d0864 | 2257 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2258 | #else |
2259 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2260 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2261 | #else |
b28d0864 NIS |
2262 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2263 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2264 | else { |
e8ee3774 | 2265 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2266 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2267 | } |
79072805 LW |
2268 | #endif |
2269 | #endif | |
85e6fe83 | 2270 | #endif |
d8eceb89 | 2271 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2272 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2273 | break; |
2274 | case '(': | |
3280af22 NIS |
2275 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2276 | if (PL_delaymagic) { | |
2277 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2278 | break; /* don't do magic till later */ |
2279 | } | |
2280 | #ifdef HAS_SETRGID | |
b28d0864 | 2281 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2282 | #else |
2283 | #ifdef HAS_SETREGID | |
3280af22 | 2284 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2285 | #else |
2286 | #ifdef HAS_SETRESGID | |
b28d0864 | 2287 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2288 | #else |
b28d0864 NIS |
2289 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2290 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2291 | else { |
d8eceb89 | 2292 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2293 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2294 | } |
79072805 LW |
2295 | #endif |
2296 | #endif | |
85e6fe83 | 2297 | #endif |
d8eceb89 | 2298 | PL_gid = PerlProc_getgid(); |
3280af22 | 2299 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2300 | break; |
2301 | case ')': | |
5cd24f17 | 2302 | #ifdef HAS_SETGROUPS |
2303 | { | |
2d8e6c8d | 2304 | char *p = SvPV(sv, len); |
5cd24f17 | 2305 | Groups_t gary[NGROUPS]; |
2306 | ||
5cd24f17 | 2307 | while (isSPACE(*p)) |
2308 | ++p; | |
2d4389e4 | 2309 | PL_egid = Atol(p); |
5cd24f17 | 2310 | for (i = 0; i < NGROUPS; ++i) { |
2311 | while (*p && !isSPACE(*p)) | |
2312 | ++p; | |
2313 | while (isSPACE(*p)) | |
2314 | ++p; | |
2315 | if (!*p) | |
2316 | break; | |
2d4389e4 | 2317 | gary[i] = Atol(p); |
5cd24f17 | 2318 | } |
8cc95fdb | 2319 | if (i) |
2320 | (void)setgroups(i, gary); | |
5cd24f17 | 2321 | } |
2322 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2323 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2324 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2325 | if (PL_delaymagic) { |
2326 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2327 | break; /* don't do magic till later */ |
2328 | } | |
2329 | #ifdef HAS_SETEGID | |
3280af22 | 2330 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2331 | #else |
2332 | #ifdef HAS_SETREGID | |
b28d0864 | 2333 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2334 | #else |
2335 | #ifdef HAS_SETRESGID | |
b28d0864 | 2336 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2337 | #else |
b28d0864 NIS |
2338 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2339 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2340 | else { |
d8eceb89 | 2341 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2342 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2343 | } |
79072805 LW |
2344 | #endif |
2345 | #endif | |
85e6fe83 | 2346 | #endif |
d8eceb89 | 2347 | PL_egid = PerlProc_getegid(); |
3280af22 | 2348 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2349 | break; |
2350 | case ':': | |
2d8e6c8d | 2351 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2352 | break; |
cd39f2b6 | 2353 | #ifndef MACOS_TRADITIONAL |
79072805 | 2354 | case '0': |
e2975953 | 2355 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2356 | #ifdef HAS_SETPROCTITLE |
2357 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2358 | * show a string from the process struct and provide | |
2359 | * the setproctitle() routine to manipulate that. */ | |
2360 | { | |
2361 | s = SvPV(sv, len); | |
98b76f99 | 2362 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2363 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2364 | * but not the "(perl) suffix from the ps(1) |
2365 | * output, because that's what ps(1) shows if the | |
2366 | * argv[] is modified. */ | |
6f2ad931 | 2367 | setproctitle("-%s", s); |
9aad2c0e | 2368 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2369 | /* This doesn't really work if you assume that |
2370 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2371 | * because in ps(1) output the result will be like | |
2372 | * sprintf("perl: %s (perl)", s) | |
2373 | * I guess this is a security feature: | |
2374 | * one (a user process) cannot get rid of the original name. | |
2375 | * --jhi */ | |
2376 | setproctitle("%s", s); | |
2377 | # endif | |
2378 | } | |
2379 | #endif | |
17aa7f3d JH |
2380 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2381 | { | |
2382 | union pstun un; | |
2383 | s = SvPV(sv, len); | |
2384 | un.pst_command = s; | |
2385 | pstat(PSTAT_SETCMD, un, len, 0, 0); | |
2386 | } | |
2387 | #endif | |
3cb9023d | 2388 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2389 | s = SvPV_force(sv,len); |
8bafa735 | 2390 | if (len >= (STRLEN)PL_origalen) { |
54bfe034 JH |
2391 | /* Longer than original, will be truncated. */ |
2392 | Copy(s, PL_origargv[0], PL_origalen, char); | |
2393 | PL_origargv[0][PL_origalen - 1] = 0; | |
79072805 LW |
2394 | } |
2395 | else { | |
54bfe034 JH |
2396 | /* Shorter than original, will be padded. */ |
2397 | Copy(s, PL_origargv[0], len, char); | |
2398 | PL_origargv[0][len] = 0; | |
2399 | memset(PL_origargv[0] + len + 1, | |
2400 | /* Is the space counterintuitive? Yes. | |
2401 | * (You were expecting \0?) | |
3cb9023d | 2402 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 JH |
2403 | * --jhi */ |
2404 | (int)' ', | |
2405 | PL_origalen - len - 1); | |
3280af22 | 2406 | for (i = 1; i < PL_origargc; i++) |
54bfe034 | 2407 | PL_origargv[i] = 0; |
79072805 | 2408 | } |
e2975953 | 2409 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2410 | break; |
cd39f2b6 | 2411 | #endif |
79072805 LW |
2412 | } |
2413 | return 0; | |
2414 | } | |
2415 | ||
2416 | I32 | |
864dbfa3 | 2417 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2418 | { |
2419 | register char **sigv; | |
2420 | ||
e02bfb16 | 2421 | for (sigv = PL_sig_name; *sigv; sigv++) |
79072805 | 2422 | if (strEQ(sig,*sigv)) |
22c35a8c | 2423 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2424 | #ifdef SIGCLD |
2425 | if (strEQ(sig,"CHLD")) | |
2426 | return SIGCLD; | |
2427 | #endif | |
2428 | #ifdef SIGCHLD | |
2429 | if (strEQ(sig,"CLD")) | |
2430 | return SIGCHLD; | |
2431 | #endif | |
7f1236c0 | 2432 | return -1; |
79072805 LW |
2433 | } |
2434 | ||
df3728a2 | 2435 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2436 | static SV* sig_sv; |
df3728a2 | 2437 | #endif |
84902520 | 2438 | |
ecfc5424 | 2439 | Signal_t |
cea2e8a9 | 2440 | Perl_sighandler(int sig) |
79072805 | 2441 | { |
1018e26f NIS |
2442 | #ifdef PERL_GET_SIG_CONTEXT |
2443 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2444 | #else |
cea2e8a9 | 2445 | dTHX; |
71d280e3 | 2446 | #endif |
79072805 | 2447 | dSP; |
00d579c5 | 2448 | GV *gv = Nullgv; |
a0d0e21e | 2449 | HV *st; |
b7953727 | 2450 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2451 | CV *cv = Nullcv; |
533c011a | 2452 | OP *myop = PL_op; |
84902520 | 2453 | U32 flags = 0; |
3280af22 | 2454 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2455 | |
3280af22 | 2456 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2457 | flags |= 1; |
3280af22 | 2458 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2459 | flags |= 4; |
3280af22 | 2460 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2461 | flags |= 8; |
3280af22 | 2462 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2463 | flags |= 16; |
2464 | ||
727405f8 | 2465 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2466 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2467 | PL_sig_name[sig]); |
2468 | exit(sig); | |
2469 | } | |
ff0cee69 | 2470 | |
84902520 TB |
2471 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2472 | infinity, so we fix 4 (in fact 5): */ | |
2473 | if (flags & 1) { | |
3280af22 | 2474 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2475 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2476 | } |
ac27b0f5 | 2477 | if (flags & 4) |
3280af22 | 2478 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2479 | if (flags & 8) { |
3280af22 NIS |
2480 | PL_retstack_ix++; |
2481 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2482 | } |
2483 | if (flags & 16) | |
3280af22 | 2484 | PL_scopestack_ix += 1; |
84902520 | 2485 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2486 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2487 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2488 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2489 | |
a0d0e21e | 2490 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2491 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2492 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2493 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2494 | : ((cv && CvGV(cv)) |
2495 | ? GvENAME(CvGV(cv)) | |
2496 | : "__ANON__"))); | |
2497 | goto cleanup; | |
79072805 LW |
2498 | } |
2499 | ||
22c35a8c GS |
2500 | if(PL_psig_name[sig]) { |
2501 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2502 | flags |= 64; |
df3728a2 | 2503 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2504 | sig_sv = sv; |
df3728a2 | 2505 | #endif |
84902520 | 2506 | } else { |
ff0cee69 | 2507 | sv = sv_newmortal(); |
22c35a8c | 2508 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2509 | } |
e336de0d | 2510 | |
e788e7d3 | 2511 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2512 | PUSHMARK(SP); |
79072805 | 2513 | PUSHs(sv); |
79072805 | 2514 | PUTBACK; |
a0d0e21e | 2515 | |
1b266415 | 2516 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2517 | |
d3acc0f7 | 2518 | POPSTACK; |
1b266415 | 2519 | if (SvTRUE(ERRSV)) { |
1d615522 | 2520 | #ifndef PERL_MICRO |
983dbef6 | 2521 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2522 | /* Handler "died", for example to get out of a restart-able read(). |
2523 | * Before we re-do that on its behalf re-enable the signal which was | |
2524 | * blocked by the system when we entered. | |
2525 | */ | |
2526 | sigset_t set; | |
2527 | sigemptyset(&set); | |
2528 | sigaddset(&set,sig); | |
2529 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2530 | #else | |
2531 | /* Not clear if this will work */ | |
2532 | (void)rsignal(sig, SIG_IGN); | |
5c1546dc | 2533 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2534 | #endif |
1d615522 | 2535 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2536 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2537 | } |
00d579c5 | 2538 | cleanup: |
84902520 | 2539 | if (flags & 1) |
3280af22 | 2540 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2541 | if (flags & 4) |
3280af22 | 2542 | PL_markstack_ptr--; |
ac27b0f5 | 2543 | if (flags & 8) |
3280af22 | 2544 | PL_retstack_ix--; |
84902520 | 2545 | if (flags & 16) |
3280af22 | 2546 | PL_scopestack_ix -= 1; |
84902520 TB |
2547 | if (flags & 64) |
2548 | SvREFCNT_dec(sv); | |
533c011a | 2549 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2550 | |
3280af22 NIS |
2551 | PL_Sv = tSv; /* Restore global temporaries. */ |
2552 | PL_Xpv = tXpv; | |
53bb94e2 | 2553 | return; |
79072805 | 2554 | } |
4e35701f NIS |
2555 | |
2556 | ||
51371543 | 2557 | static void |
acfe0abc | 2558 | restore_magic(pTHX_ void *p) |
51371543 | 2559 | { |
48944bdf | 2560 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2561 | SV* sv = mgs->mgs_sv; |
2562 | ||
2563 | if (!sv) | |
2564 | return; | |
2565 | ||
2566 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2567 | { | |
2568 | if (mgs->mgs_flags) | |
2569 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2570 | else | |
2571 | mg_magical(sv); | |
2572 | if (SvGMAGICAL(sv)) | |
2573 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2574 | } | |
2575 | ||
2576 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2577 | ||
2578 | /* If we're still on top of the stack, pop us off. (That condition | |
2579 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2580 | * if it's being called via leave_scope.) | |
2581 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2582 | * may leave alloc gunk on the savestack, and some code | |
2583 | * (e.g. sighandler) doesn't expect that... | |
2584 | */ | |
2585 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2586 | { | |
2587 | I32 popval = SSPOPINT; | |
c76ac1ee | 2588 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2589 | PL_savestack_ix -= 2; |
2590 | popval = SSPOPINT; | |
2591 | assert(popval == SAVEt_ALLOC); | |
2592 | popval = SSPOPINT; | |
2593 | PL_savestack_ix -= popval; | |
2594 | } | |
2595 | ||
2596 | } | |
2597 | ||
2598 | static void | |
acfe0abc | 2599 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2600 | { |
51371543 GS |
2601 | U32 flags = *(U32*)p; |
2602 | ||
2603 | if (flags & 1) | |
2604 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2605 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2606 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2607 | if (flags & 64) |
2608 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2609 | #endif |
51371543 | 2610 | } |
1018e26f NIS |
2611 | |
2612 |