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 | } | |
142 | ||
ff76feab AMS |
143 | /* Don't restore the flags for this entry if it was deleted. */ |
144 | if (mg->mg_flags & MGf_GSKIP) | |
145 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 146 | } |
ff76feab AMS |
147 | |
148 | mg = mg->mg_moremagic; | |
149 | ||
150 | if (new) { | |
151 | /* Have we finished with the new entries we saw? Start again | |
152 | where we left off (unless there are more new entries). */ | |
153 | if (mg == head) { | |
154 | new = 0; | |
155 | mg = cur; | |
156 | head = newmg; | |
157 | } | |
158 | } | |
159 | ||
160 | /* Were any new entries added? */ | |
161 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
162 | new = 1; | |
163 | cur = mg; | |
164 | mg = newmg; | |
760ac839 | 165 | } |
79072805 | 166 | } |
463ee0b2 | 167 | |
acfe0abc | 168 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
169 | return 0; |
170 | } | |
171 | ||
954c1994 GS |
172 | /* |
173 | =for apidoc mg_set | |
174 | ||
175 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
176 | ||
177 | =cut | |
178 | */ | |
179 | ||
79072805 | 180 | int |
864dbfa3 | 181 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 182 | { |
8fb26106 | 183 | I32 mgs_ix; |
79072805 | 184 | MAGIC* mg; |
463ee0b2 LW |
185 | MAGIC* nextmg; |
186 | ||
455ece5e AD |
187 | mgs_ix = SSNEW(sizeof(MGS)); |
188 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
189 | |
190 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 191 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 192 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
193 | if (mg->mg_flags & MGf_GSKIP) { |
194 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 195 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 196 | } |
2b260de0 | 197 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 198 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 199 | } |
463ee0b2 | 200 | |
acfe0abc | 201 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
202 | return 0; |
203 | } | |
204 | ||
954c1994 GS |
205 | /* |
206 | =for apidoc mg_length | |
207 | ||
208 | Report on the SV's length. See C<sv_magic>. | |
209 | ||
210 | =cut | |
211 | */ | |
212 | ||
79072805 | 213 | U32 |
864dbfa3 | 214 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
215 | { |
216 | MAGIC* mg; | |
463ee0b2 | 217 | STRLEN len; |
463ee0b2 | 218 | |
79072805 LW |
219 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
220 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 221 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 222 | I32 mgs_ix; |
48e43a1c | 223 | |
455ece5e AD |
224 | mgs_ix = SSNEW(sizeof(MGS)); |
225 | save_magic(mgs_ix, sv); | |
a0d0e21e | 226 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 227 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 228 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
229 | return len; |
230 | } | |
231 | } | |
232 | ||
7719e241 | 233 | if (DO_UTF8(sv)) |
5636d518 DB |
234 | { |
235 | U8 *s = (U8*)SvPV(sv, len); | |
236 | len = Perl_utf8_length(aTHX_ s, s + len); | |
237 | } | |
238 | else | |
239 | (void)SvPV(sv, len); | |
463ee0b2 | 240 | return len; |
79072805 LW |
241 | } |
242 | ||
8fb26106 | 243 | I32 |
864dbfa3 | 244 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
245 | { |
246 | MAGIC* mg; | |
247 | I32 len; | |
ac27b0f5 | 248 | |
93965878 NIS |
249 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
250 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 251 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 252 | I32 mgs_ix; |
455ece5e AD |
253 | |
254 | mgs_ix = SSNEW(sizeof(MGS)); | |
255 | save_magic(mgs_ix, sv); | |
93965878 | 256 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 257 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 258 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
259 | return len; |
260 | } | |
261 | } | |
262 | ||
263 | switch(SvTYPE(sv)) { | |
264 | case SVt_PVAV: | |
265 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
266 | return len; | |
267 | case SVt_PVHV: | |
268 | /* FIXME */ | |
269 | default: | |
cea2e8a9 | 270 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
271 | break; |
272 | } | |
273 | return 0; | |
274 | } | |
275 | ||
954c1994 GS |
276 | /* |
277 | =for apidoc mg_clear | |
278 | ||
279 | Clear something magical that the SV represents. See C<sv_magic>. | |
280 | ||
281 | =cut | |
282 | */ | |
283 | ||
79072805 | 284 | int |
864dbfa3 | 285 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 286 | { |
8fb26106 | 287 | I32 mgs_ix; |
79072805 | 288 | MAGIC* mg; |
463ee0b2 | 289 | |
455ece5e AD |
290 | mgs_ix = SSNEW(sizeof(MGS)); |
291 | save_magic(mgs_ix, sv); | |
463ee0b2 | 292 | |
79072805 LW |
293 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
294 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e | 295 | /* omit GSKIP -- never set here */ |
727405f8 | 296 | |
2b260de0 | 297 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 298 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 299 | } |
463ee0b2 | 300 | |
acfe0abc | 301 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
302 | return 0; |
303 | } | |
304 | ||
954c1994 GS |
305 | /* |
306 | =for apidoc mg_find | |
307 | ||
308 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
309 | ||
310 | =cut | |
311 | */ | |
312 | ||
93a17b20 | 313 | MAGIC* |
864dbfa3 | 314 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
315 | { |
316 | MAGIC* mg; | |
3f8f4626 DC |
317 | if (!sv) |
318 | return 0; | |
93a17b20 LW |
319 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
320 | if (mg->mg_type == type) | |
321 | return mg; | |
322 | } | |
323 | return 0; | |
324 | } | |
325 | ||
954c1994 GS |
326 | /* |
327 | =for apidoc mg_copy | |
328 | ||
329 | Copies the magic from one SV to another. See C<sv_magic>. | |
330 | ||
331 | =cut | |
332 | */ | |
333 | ||
79072805 | 334 | int |
864dbfa3 | 335 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 336 | { |
463ee0b2 | 337 | int count = 0; |
79072805 | 338 | MAGIC* mg; |
463ee0b2 | 339 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 NIS |
340 | MGVTBL* vtbl = mg->mg_virtual; |
341 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ | |
342 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
343 | } | |
344 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 345 | sv_magic(nsv, |
14befaf4 DM |
346 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
347 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
348 | ? sv : mg->mg_obj, | |
33c27489 | 349 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 350 | count++; |
79072805 | 351 | } |
79072805 | 352 | } |
463ee0b2 | 353 | return count; |
79072805 LW |
354 | } |
355 | ||
954c1994 GS |
356 | /* |
357 | =for apidoc mg_free | |
358 | ||
359 | Free any magic storage used by the SV. See C<sv_magic>. | |
360 | ||
361 | =cut | |
362 | */ | |
363 | ||
79072805 | 364 | int |
864dbfa3 | 365 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
366 | { |
367 | MAGIC* mg; | |
368 | MAGIC* moremagic; | |
369 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
370 | MGVTBL* vtbl = mg->mg_virtual; | |
371 | moremagic = mg->mg_moremagic; | |
2b260de0 | 372 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 373 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 374 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 | 375 | if (mg->mg_len > 0) |
88e89b8a | 376 | Safefree(mg->mg_ptr); |
565764a8 | 377 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 378 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 379 | } |
b881518d JH |
380 | if (mg->mg_flags & MGf_REFCOUNTED) |
381 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
382 | Safefree(mg); |
383 | } | |
384 | SvMAGIC(sv) = 0; | |
385 | return 0; | |
386 | } | |
387 | ||
d460ef45 | 388 | |
79072805 LW |
389 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
390 | #include <signal.h> | |
391 | #endif | |
392 | ||
942e002e | 393 | U32 |
864dbfa3 | 394 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 395 | { |
6cef1e77 | 396 | register REGEXP *rx; |
6cef1e77 | 397 | |
aaa362c4 | 398 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
399 | if (mg->mg_obj) /* @+ */ |
400 | return rx->nparens; | |
401 | else /* @- */ | |
402 | return rx->lastparen; | |
403 | } | |
ac27b0f5 | 404 | |
942e002e | 405 | return (U32)-1; |
6cef1e77 IZ |
406 | } |
407 | ||
408 | int | |
864dbfa3 | 409 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 410 | { |
6cef1e77 | 411 | register I32 paren; |
cf93c79d | 412 | register I32 s; |
6cef1e77 IZ |
413 | register I32 i; |
414 | register REGEXP *rx; | |
cf93c79d | 415 | I32 t; |
6cef1e77 | 416 | |
aaa362c4 | 417 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
418 | paren = mg->mg_len; |
419 | if (paren < 0) | |
420 | return 0; | |
eb160463 | 421 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
422 | (s = rx->startp[paren]) != -1 && |
423 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
424 | { |
425 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 426 | i = t; |
6cef1e77 | 427 | else /* @- */ |
cf93c79d | 428 | i = s; |
727405f8 | 429 | |
a30b2f1f | 430 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b | 431 | char *b = rx->subbeg; |
0064a8a9 JH |
432 | if (b) |
433 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 434 | } |
0064a8a9 JH |
435 | |
436 | sv_setiv(sv, i); | |
6cef1e77 IZ |
437 | } |
438 | } | |
439 | return 0; | |
440 | } | |
441 | ||
e4b89193 | 442 | int |
a29d06ed MG |
443 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
444 | { | |
a29d06ed | 445 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
446 | /* NOT REACHED */ |
447 | return 0; | |
a29d06ed MG |
448 | } |
449 | ||
93a17b20 | 450 | U32 |
864dbfa3 | 451 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
452 | { |
453 | register I32 paren; | |
93a17b20 | 454 | register I32 i; |
d9f97599 | 455 | register REGEXP *rx; |
a197cbdd | 456 | I32 s1, t1; |
93a17b20 LW |
457 | |
458 | switch (*mg->mg_ptr) { | |
459 | case '1': case '2': case '3': case '4': | |
460 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 461 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 462 | |
ffc61ed2 | 463 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 464 | getparen: |
eb160463 | 465 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
466 | (s1 = rx->startp[paren]) != -1 && |
467 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 468 | { |
cf93c79d | 469 | i = t1 - s1; |
a197cbdd | 470 | getlen: |
a30b2f1f | 471 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
ffc61ed2 | 472 | char *s = rx->subbeg + s1; |
a197cbdd | 473 | char *send = rx->subbeg + t1; |
ffc61ed2 | 474 | |
6d5fa195 | 475 | i = t1 - s1; |
60425c38 JH |
476 | if (is_utf8_string((U8*)s, i)) |
477 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 478 | } |
ffc61ed2 | 479 | if (i < 0) |
0844c848 | 480 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 481 | return i; |
93a17b20 | 482 | } |
235bddc8 NIS |
483 | else { |
484 | if (ckWARN(WARN_UNINITIALIZED)) | |
485 | report_uninit(); | |
486 | } | |
487 | } | |
488 | else { | |
489 | if (ckWARN(WARN_UNINITIALIZED)) | |
490 | report_uninit(); | |
93a17b20 | 491 | } |
748a9306 | 492 | return 0; |
93a17b20 | 493 | case '+': |
aaa362c4 | 494 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 495 | paren = rx->lastparen; |
13f57bf8 CS |
496 | if (paren) |
497 | goto getparen; | |
93a17b20 | 498 | } |
748a9306 | 499 | return 0; |
a01268b5 JH |
500 | case '\016': /* ^N */ |
501 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
502 | paren = rx->lastcloseparen; | |
503 | if (paren) | |
504 | goto getparen; | |
505 | } | |
506 | return 0; | |
93a17b20 | 507 | case '`': |
aaa362c4 | 508 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
509 | if (rx->startp[0] != -1) { |
510 | i = rx->startp[0]; | |
a197cbdd GS |
511 | if (i > 0) { |
512 | s1 = 0; | |
513 | t1 = i; | |
514 | goto getlen; | |
515 | } | |
93a17b20 | 516 | } |
93a17b20 | 517 | } |
748a9306 | 518 | return 0; |
93a17b20 | 519 | case '\'': |
aaa362c4 | 520 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
521 | if (rx->endp[0] != -1) { |
522 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
523 | if (i > 0) { |
524 | s1 = rx->endp[0]; | |
525 | t1 = rx->sublen; | |
526 | goto getlen; | |
527 | } | |
93a17b20 | 528 | } |
93a17b20 | 529 | } |
748a9306 | 530 | return 0; |
93a17b20 LW |
531 | } |
532 | magic_get(sv,mg); | |
2d8e6c8d GS |
533 | if (!SvPOK(sv) && SvNIOK(sv)) { |
534 | STRLEN n_a; | |
535 | sv_2pv(sv, &n_a); | |
536 | } | |
93a17b20 LW |
537 | if (SvPOK(sv)) |
538 | return SvCUR(sv); | |
539 | return 0; | |
540 | } | |
541 | ||
79072805 | 542 | int |
864dbfa3 | 543 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
544 | { |
545 | register I32 paren; | |
546 | register char *s; | |
547 | register I32 i; | |
d9f97599 | 548 | register REGEXP *rx; |
79072805 LW |
549 | |
550 | switch (*mg->mg_ptr) { | |
748a9306 | 551 | case '\001': /* ^A */ |
3280af22 | 552 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 553 | break; |
49460fe6 NIS |
554 | case '\003': /* ^C */ |
555 | sv_setiv(sv, (IV)PL_minus_c); | |
556 | break; | |
557 | ||
79072805 | 558 | case '\004': /* ^D */ |
aea4f609 | 559 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 560 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 561 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 562 | #endif |
79072805 | 563 | break; |
28f23441 | 564 | case '\005': /* ^E */ |
0a378802 | 565 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 566 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
567 | { |
568 | char msg[256]; | |
727405f8 | 569 | |
0a378802 | 570 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 571 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 572 | } |
727405f8 | 573 | #else |
28f23441 | 574 | #ifdef VMS |
0a378802 JH |
575 | { |
576 | # include <descrip.h> | |
577 | # include <starlet.h> | |
578 | char msg[255]; | |
579 | $DESCRIPTOR(msgdsc,msg); | |
580 | sv_setnv(sv,(NV) vaxc$errno); | |
581 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
582 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
583 | else | |
584 | sv_setpv(sv,""); | |
585 | } | |
28f23441 | 586 | #else |
88e89b8a | 587 | #ifdef OS2 |
0a378802 JH |
588 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
589 | sv_setnv(sv, (NV)errno); | |
590 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
591 | } else { | |
592 | if (errno != errno_isOS2) { | |
593 | int tmp = _syserrno(); | |
594 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
595 | Perl_rc = tmp; | |
596 | } | |
597 | sv_setnv(sv, (NV)Perl_rc); | |
598 | sv_setpv(sv, os2error(Perl_rc)); | |
599 | } | |
88e89b8a | 600 | #else |
22fae026 | 601 | #ifdef WIN32 |
0a378802 JH |
602 | { |
603 | DWORD dwErr = GetLastError(); | |
604 | sv_setnv(sv, (NV)dwErr); | |
605 | if (dwErr) | |
606 | { | |
607 | PerlProc_GetOSError(sv, dwErr); | |
608 | } | |
609 | else | |
610 | sv_setpv(sv, ""); | |
611 | SetLastError(dwErr); | |
612 | } | |
22fae026 | 613 | #else |
0a378802 JH |
614 | sv_setnv(sv, (NV)errno); |
615 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
28f23441 | 616 | #endif |
88e89b8a | 617 | #endif |
22fae026 | 618 | #endif |
cd39f2b6 | 619 | #endif |
0a378802 JH |
620 | SvNOK_on(sv); /* what a wonderful hack! */ |
621 | } | |
622 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
623 | sv_setsv(sv, PL_encoding); | |
624 | break; | |
79072805 | 625 | case '\006': /* ^F */ |
3280af22 | 626 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 627 | break; |
a0d0e21e | 628 | case '\010': /* ^H */ |
3280af22 | 629 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 630 | break; |
9d116dd7 | 631 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
632 | if (PL_inplace) |
633 | sv_setpv(sv, PL_inplace); | |
79072805 | 634 | else |
3280af22 | 635 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 636 | break; |
ac27b0f5 NIS |
637 | case '\017': /* ^O & ^OPEN */ |
638 | if (*(mg->mg_ptr+1) == '\0') | |
639 | sv_setpv(sv, PL_osname); | |
640 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
641 | if (!PL_compiling.cop_io) | |
642 | sv_setsv(sv, &PL_sv_undef); | |
643 | else { | |
644 | sv_setsv(sv, PL_compiling.cop_io); | |
645 | } | |
646 | } | |
28f23441 | 647 | break; |
79072805 | 648 | case '\020': /* ^P */ |
3280af22 | 649 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 650 | break; |
fb73857a | 651 | case '\023': /* ^S */ |
4ffa73a3 | 652 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 653 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 654 | (void)SvOK_off(sv); |
3280af22 | 655 | else if (PL_in_eval) |
6dc8a9e4 | 656 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
657 | else |
658 | sv_setiv(sv, 0); | |
d58bf5aa | 659 | } |
fb73857a | 660 | break; |
79072805 | 661 | case '\024': /* ^T */ |
7c36658b | 662 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 663 | #ifdef BIG_TIME |
7c36658b | 664 | sv_setnv(sv, PL_basetime); |
88e89b8a | 665 | #else |
7c36658b | 666 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 667 | #endif |
7c36658b MS |
668 | } |
669 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
670 | sv_setiv(sv, PL_tainting |
671 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
672 | : 0); | |
7c36658b | 673 | break; |
a05d7ebb JH |
674 | case '\025': /* $^UNICODE */ |
675 | if (strEQ(mg->mg_ptr, "\025NICODE")) | |
676 | sv_setuv(sv, (UV) PL_unicode); | |
fde18df1 JH |
677 | break; |
678 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
679 | if (*(mg->mg_ptr+1) == '\0') |
680 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 681 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
682 | if (PL_compiling.cop_warnings == pWARN_NONE || |
683 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
684 | { |
685 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
686 | } | |
d3a7d8c7 | 687 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
688 | /* Get the bit mask for $warnings::Bits{all}, because |
689 | * it could have been extended by warnings::register */ | |
690 | SV **bits_all; | |
691 | HV *bits=get_hv("warnings::Bits", FALSE); | |
692 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
693 | sv_setsv(sv, *bits_all); | |
694 | } | |
695 | else { | |
696 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
697 | } | |
ac27b0f5 | 698 | } |
4438c4b7 JH |
699 | else { |
700 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 701 | } |
d3a7d8c7 | 702 | SvPOK_only(sv); |
4438c4b7 | 703 | } |
79072805 LW |
704 | break; |
705 | case '1': case '2': case '3': case '4': | |
706 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 707 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
708 | I32 s1, t1; |
709 | ||
a863c7d1 MB |
710 | /* |
711 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
712 | * XXX Does the new way break anything? | |
713 | */ | |
ffc61ed2 | 714 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 715 | getparen: |
eb160463 | 716 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
717 | (s1 = rx->startp[paren]) != -1 && |
718 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 719 | { |
cf93c79d IZ |
720 | i = t1 - s1; |
721 | s = rx->subbeg + s1; | |
01ec43d0 | 722 | if (!rx->subbeg) |
c2e66d9e GS |
723 | break; |
724 | ||
13f57bf8 | 725 | getrx: |
748a9306 | 726 | if (i >= 0) { |
cf93c79d | 727 | sv_setpvn(sv, s, i); |
a30b2f1f | 728 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
729 | SvUTF8_on(sv); |
730 | else | |
731 | SvUTF8_off(sv); | |
e9814ee1 HS |
732 | if (PL_tainting) { |
733 | if (RX_MATCH_TAINTED(rx)) { | |
734 | MAGIC* mg = SvMAGIC(sv); | |
735 | MAGIC* mgt; | |
736 | PL_tainted = 1; | |
737 | SvMAGIC(sv) = mg->mg_moremagic; | |
738 | SvTAINT(sv); | |
739 | if ((mgt = SvMAGIC(sv))) { | |
740 | mg->mg_moremagic = mgt; | |
741 | SvMAGIC(sv) = mg; | |
742 | } | |
743 | } else | |
744 | SvTAINTED_off(sv); | |
745 | } | |
748a9306 LW |
746 | break; |
747 | } | |
79072805 | 748 | } |
79072805 | 749 | } |
3280af22 | 750 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
751 | break; |
752 | case '+': | |
aaa362c4 | 753 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 754 | paren = rx->lastparen; |
a0d0e21e LW |
755 | if (paren) |
756 | goto getparen; | |
79072805 | 757 | } |
3280af22 | 758 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 759 | break; |
a01268b5 JH |
760 | case '\016': /* ^N */ |
761 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
762 | paren = rx->lastcloseparen; | |
763 | if (paren) | |
764 | goto getparen; | |
765 | } | |
766 | sv_setsv(sv,&PL_sv_undef); | |
767 | break; | |
79072805 | 768 | case '`': |
aaa362c4 | 769 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
770 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
771 | i = rx->startp[0]; | |
13f57bf8 | 772 | goto getrx; |
79072805 | 773 | } |
79072805 | 774 | } |
3280af22 | 775 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
776 | break; |
777 | case '\'': | |
aaa362c4 | 778 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
779 | if (rx->subbeg && rx->endp[0] != -1) { |
780 | s = rx->subbeg + rx->endp[0]; | |
781 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 782 | goto getrx; |
79072805 | 783 | } |
79072805 | 784 | } |
3280af22 | 785 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
786 | break; |
787 | case '.': | |
788 | #ifndef lint | |
3280af22 | 789 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 790 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
791 | } |
792 | #endif | |
793 | break; | |
794 | case '?': | |
809a5acc | 795 | { |
809a5acc | 796 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 797 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
798 | LvTARGOFF(sv) = PL_statusvalue; |
799 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 800 | #endif |
809a5acc | 801 | } |
79072805 LW |
802 | break; |
803 | case '^': | |
3280af22 | 804 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
805 | if (s) |
806 | sv_setpv(sv,s); | |
807 | else { | |
3280af22 | 808 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
809 | sv_catpv(sv,"_TOP"); |
810 | } | |
811 | break; | |
812 | case '~': | |
3280af22 | 813 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 814 | if (!s) |
3280af22 | 815 | s = GvENAME(PL_defoutgv); |
79072805 LW |
816 | sv_setpv(sv,s); |
817 | break; | |
818 | #ifndef lint | |
819 | case '=': | |
3280af22 | 820 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
821 | break; |
822 | case '-': | |
3280af22 | 823 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
824 | break; |
825 | case '%': | |
3280af22 | 826 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
827 | break; |
828 | #endif | |
829 | case ':': | |
830 | break; | |
831 | case '/': | |
832 | break; | |
833 | case '[': | |
3280af22 | 834 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
835 | break; |
836 | case '|': | |
3280af22 | 837 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
838 | break; |
839 | case ',': | |
79072805 LW |
840 | break; |
841 | case '\\': | |
b2ce0fda | 842 | if (PL_ors_sv) |
f28098ff | 843 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
844 | break; |
845 | case '#': | |
3280af22 | 846 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
847 | break; |
848 | case '!': | |
a5f75d66 | 849 | #ifdef VMS |
65202027 | 850 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 851 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 852 | #else |
88e89b8a | 853 | { |
854 | int saveerrno = errno; | |
65202027 | 855 | sv_setnv(sv, (NV)errno); |
88e89b8a | 856 | #ifdef OS2 |
ed344e4f IZ |
857 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
858 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 859 | else |
a5f75d66 | 860 | #endif |
2304df62 | 861 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 862 | errno = saveerrno; |
863 | } | |
864 | #endif | |
946ec16e | 865 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
866 | break; |
867 | case '<': | |
3280af22 | 868 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
869 | break; |
870 | case '>': | |
3280af22 | 871 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
872 | break; |
873 | case '(': | |
3280af22 | 874 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 875 | #ifdef HAS_GETGROUPS |
785fb66b | 876 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 877 | #endif |
79072805 LW |
878 | goto add_groups; |
879 | case ')': | |
3280af22 | 880 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 881 | #ifdef HAS_GETGROUPS |
785fb66b | 882 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 883 | #endif |
79072805 | 884 | add_groups: |
79072805 | 885 | #ifdef HAS_GETGROUPS |
79072805 | 886 | { |
a0d0e21e | 887 | Groups_t gary[NGROUPS]; |
79072805 | 888 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 889 | while (--i >= 0) |
785fb66b | 890 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
891 | } |
892 | #endif | |
155aba94 | 893 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
894 | break; |
895 | case '*': | |
896 | break; | |
cd39f2b6 | 897 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
898 | case '0': |
899 | break; | |
cd39f2b6 | 900 | #endif |
79072805 | 901 | } |
a0d0e21e | 902 | return 0; |
79072805 LW |
903 | } |
904 | ||
905 | int | |
864dbfa3 | 906 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
907 | { |
908 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
909 | ||
910 | if (uf && uf->uf_val) | |
24f81a43 | 911 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
912 | return 0; |
913 | } | |
914 | ||
915 | int | |
864dbfa3 | 916 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
917 | { |
918 | register char *s; | |
88e89b8a | 919 | char *ptr; |
5aabfad6 | 920 | STRLEN len, klen; |
1e422769 | 921 | |
a0d0e21e | 922 | s = SvPV(sv,len); |
5aabfad6 | 923 | ptr = MgPV(mg,klen); |
88e89b8a | 924 | my_setenv(ptr, s); |
1e422769 | 925 | |
a0d0e21e LW |
926 | #ifdef DYNAMIC_ENV_FETCH |
927 | /* We just undefd an environment var. Is a replacement */ | |
928 | /* waiting in the wings? */ | |
929 | if (!len) { | |
5aabfad6 | 930 | SV **valp; |
6b88bc9c | 931 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 932 | s = SvPV(*valp, len); |
a0d0e21e LW |
933 | } |
934 | #endif | |
1e422769 | 935 | |
39e571d4 | 936 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
937 | /* And you'll never guess what the dog had */ |
938 | /* in its mouth... */ | |
3280af22 | 939 | if (PL_tainting) { |
1e422769 | 940 | MgTAINTEDDIR_off(mg); |
941 | #ifdef VMS | |
5aabfad6 | 942 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 943 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 944 | Stat_t sbuf; |
1e422769 | 945 | int i = 0, j = 0; |
946 | ||
947 | do { /* DCL$PATH may be a search list */ | |
948 | while (1) { /* as may dev portion of any element */ | |
949 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
950 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
951 | cando_by_name(S_IWUSR,0,elt) ) { | |
952 | MgTAINTEDDIR_on(mg); | |
953 | return 0; | |
954 | } | |
955 | } | |
956 | if ((cp = strchr(elt, ':')) != Nullch) | |
957 | *cp = '\0'; | |
958 | if (my_trnlnm(elt, eltbuf, j++)) | |
959 | elt = eltbuf; | |
960 | else | |
961 | break; | |
962 | } | |
963 | j = 0; | |
964 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
965 | } | |
966 | #endif /* VMS */ | |
5aabfad6 | 967 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 968 | char *strend = s + len; |
463ee0b2 LW |
969 | |
970 | while (s < strend) { | |
96827780 | 971 | char tmpbuf[256]; |
c623ac67 | 972 | Stat_t st; |
5f74f29c | 973 | I32 i; |
96827780 | 974 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 975 | s, strend, ':', &i); |
463ee0b2 | 976 | s++; |
96827780 MB |
977 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
978 | || *tmpbuf != '/' | |
c6ed36e1 | 979 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 980 | MgTAINTEDDIR_on(mg); |
1e422769 | 981 | return 0; |
982 | } | |
463ee0b2 | 983 | } |
79072805 LW |
984 | } |
985 | } | |
39e571d4 | 986 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 987 | |
79072805 LW |
988 | return 0; |
989 | } | |
990 | ||
991 | int | |
864dbfa3 | 992 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 993 | { |
2d8e6c8d GS |
994 | STRLEN n_a; |
995 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
996 | return 0; |
997 | } | |
998 | ||
88e89b8a | 999 | int |
864dbfa3 | 1000 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1001 | { |
1002 | #if defined(VMS) | |
cea2e8a9 | 1003 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1004 | #else |
3280af22 | 1005 | if (PL_localizing) { |
fb73857a | 1006 | HE* entry; |
2d8e6c8d | 1007 | STRLEN n_a; |
fb73857a | 1008 | magic_clear_all_env(sv,mg); |
1009 | hv_iterinit((HV*)sv); | |
155aba94 | 1010 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1011 | I32 keylen; |
1012 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 1013 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 1014 | } |
1015 | } | |
1016 | #endif | |
1017 | return 0; | |
1018 | } | |
1019 | ||
1020 | int | |
864dbfa3 | 1021 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1022 | { |
ed79a026 | 1023 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 1024 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1025 | #else |
4efc5df6 | 1026 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1027 | PerlEnv_clearenv(); |
4efc5df6 GS |
1028 | # else |
1029 | # ifdef USE_ENVIRON_ARRAY | |
1030 | # if defined(USE_ITHREADS) | |
1031 | /* only the parent thread can clobber the process environment */ | |
1032 | if (PL_curinterp == aTHX) | |
1033 | # endif | |
1034 | { | |
1035 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
1036 | I32 i; |
1037 | ||
3280af22 | 1038 | if (environ == PL_origenviron) |
f2517201 | 1039 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1040 | else |
1041 | for (i = 0; environ[i]; i++) | |
f2517201 | 1042 | safesysfree(environ[i]); |
4efc5df6 | 1043 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1044 | |
66b1d557 | 1045 | environ[0] = Nullch; |
4efc5df6 GS |
1046 | } |
1047 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 JH |
1048 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
1049 | #endif /* VMS || EPC */ | |
3e3baf6d | 1050 | return 0; |
66b1d557 HM |
1051 | } |
1052 | ||
2e34cc90 CL |
1053 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1054 | static int sig_handlers_initted = 0; | |
1055 | #endif | |
7719e241 | 1056 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1057 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1058 | #endif | |
2e34cc90 CL |
1059 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1060 | static int sig_defaulting[SIG_SIZE]; | |
1061 | #endif | |
85b332e2 | 1062 | |
64ca3a65 | 1063 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1064 | #ifdef HAS_SIGPROCMASK |
1065 | static void | |
1066 | restore_sigmask(pTHX_ SV *save_sv) | |
1067 | { | |
1068 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); | |
1069 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); | |
1070 | } | |
1071 | #endif | |
66b1d557 | 1072 | int |
864dbfa3 | 1073 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1074 | { |
1075 | I32 i; | |
2d8e6c8d | 1076 | STRLEN n_a; |
88e89b8a | 1077 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1078 | i = whichsig(MgPV(mg,n_a)); |
e02bfb16 | 1079 | if (i > 0) { |
22c35a8c GS |
1080 | if(PL_psig_ptr[i]) |
1081 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1082 | else { |
85b332e2 | 1083 | Sighandler_t sigstate; |
2e34cc90 | 1084 | sigstate = rsignal_state(i); |
23ada85b | 1085 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1086 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1087 | #endif | |
1088 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1089 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1090 | #endif |
88e89b8a | 1091 | /* cache state so we don't fetch it again */ |
ff68c719 | 1092 | if(sigstate == SIG_IGN) |
88e89b8a | 1093 | sv_setpv(sv,"IGNORE"); |
1094 | else | |
3280af22 | 1095 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1096 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1097 | SvTEMP_off(sv); |
1098 | } | |
1099 | } | |
1100 | return 0; | |
1101 | } | |
1102 | int | |
864dbfa3 | 1103 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1104 | { |
2d4fcd5e AJ |
1105 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1106 | * refactoring might be in order. | |
1107 | */ | |
1108 | register char *s; | |
2d8e6c8d | 1109 | STRLEN n_a; |
2d4fcd5e AJ |
1110 | SV* to_dec; |
1111 | s = MgPV(mg,n_a); | |
1112 | if (*s == '_') { | |
1113 | SV** svp; | |
1114 | if (strEQ(s,"__DIE__")) | |
1115 | svp = &PL_diehook; | |
1116 | else if (strEQ(s,"__WARN__")) | |
1117 | svp = &PL_warnhook; | |
1118 | else | |
1119 | Perl_croak(aTHX_ "No such hook: %s", s); | |
1120 | if (*svp) { | |
1121 | to_dec = *svp; | |
1122 | *svp = 0; | |
1123 | SvREFCNT_dec(to_dec); | |
1124 | } | |
1125 | } | |
1126 | else { | |
1127 | I32 i; | |
1128 | /* Are we clearing a signal entry? */ | |
1129 | i = whichsig(s); | |
e02bfb16 | 1130 | if (i > 0) { |
2d4fcd5e AJ |
1131 | #ifdef HAS_SIGPROCMASK |
1132 | sigset_t set, save; | |
1133 | SV* save_sv; | |
1134 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1135 | sigemptyset(&set); | |
1136 | sigaddset(&set,i); | |
1137 | sigprocmask(SIG_BLOCK, &set, &save); | |
1138 | ENTER; | |
1139 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1140 | SAVEFREESV(save_sv); | |
1141 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1142 | #endif | |
1143 | PERL_ASYNC_CHECK(); | |
1144 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
1145 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1146 | #endif | |
1147 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1148 | sig_defaulting[i] = 1; | |
1149 | (void)rsignal(i, &Perl_csighandler); | |
1150 | #else | |
1151 | (void)rsignal(i, SIG_DFL); | |
1152 | #endif | |
1153 | if(PL_psig_name[i]) { | |
1154 | SvREFCNT_dec(PL_psig_name[i]); | |
1155 | PL_psig_name[i]=0; | |
1156 | } | |
1157 | if(PL_psig_ptr[i]) { | |
1158 | to_dec=PL_psig_ptr[i]; | |
1159 | PL_psig_ptr[i]=0; | |
1160 | LEAVE; | |
1161 | SvREFCNT_dec(to_dec); | |
1162 | } | |
1163 | else | |
1164 | LEAVE; | |
1165 | } | |
88e89b8a | 1166 | } |
1167 | return 0; | |
1168 | } | |
3d37d572 | 1169 | |
0a8e0eff NIS |
1170 | void |
1171 | Perl_raise_signal(pTHX_ int sig) | |
1172 | { | |
1173 | /* Set a flag to say this signal is pending */ | |
1174 | PL_psig_pend[sig]++; | |
1175 | /* And one to say _a_ signal is pending */ | |
1176 | PL_sig_pending = 1; | |
1177 | } | |
1178 | ||
1179 | Signal_t | |
1180 | Perl_csighandler(int sig) | |
1181 | { | |
1018e26f NIS |
1182 | #ifdef PERL_GET_SIG_CONTEXT |
1183 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1184 | #else | |
85b332e2 CL |
1185 | dTHX; |
1186 | #endif | |
23ada85b | 1187 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1188 | (void) rsignal(sig, &Perl_csighandler); |
1189 | if (sig_ignoring[sig]) return; | |
1190 | #endif | |
2e34cc90 | 1191 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1192 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1193 | #ifdef KILL_BY_SIGPRC |
1194 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1195 | #else | |
1196 | exit(1); | |
1197 | #endif | |
1198 | #endif | |
4ffa73a3 JH |
1199 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1200 | /* Call the perl level handler now-- | |
1201 | * with risk we may be in malloc() etc. */ | |
1202 | (*PL_sighandlerp)(sig); | |
1203 | else | |
1204 | Perl_raise_signal(aTHX_ sig); | |
0a8e0eff NIS |
1205 | } |
1206 | ||
2e34cc90 CL |
1207 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1208 | void | |
1209 | Perl_csighandler_init(void) | |
1210 | { | |
1211 | int sig; | |
1212 | if (sig_handlers_initted) return; | |
1213 | ||
1214 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1215 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1216 | dTHX; |
2e34cc90 CL |
1217 | sig_defaulting[sig] = 1; |
1218 | (void) rsignal(sig, &Perl_csighandler); | |
1219 | #endif | |
1220 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1221 | sig_ignoring[sig] = 0; | |
1222 | #endif | |
1223 | } | |
1224 | sig_handlers_initted = 1; | |
1225 | } | |
1226 | #endif | |
1227 | ||
0a8e0eff NIS |
1228 | void |
1229 | Perl_despatch_signals(pTHX) | |
1230 | { | |
1231 | int sig; | |
1232 | PL_sig_pending = 0; | |
1233 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1234 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1235 | PERL_BLOCKSIG_ADD(set, sig); |
1236 | PL_psig_pend[sig] = 0; | |
1237 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1238 | (*PL_sighandlerp)(sig); |
25da4428 | 1239 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1240 | } |
1241 | } | |
1242 | } | |
1243 | ||
85e6fe83 | 1244 | int |
864dbfa3 | 1245 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1246 | { |
1247 | register char *s; | |
1248 | I32 i; | |
b7953727 | 1249 | SV** svp = 0; |
2d4fcd5e AJ |
1250 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1251 | * effects (due to closures). We must make sure that the new disposition | |
1252 | * is in place before it is called. | |
1253 | */ | |
1254 | SV* to_dec = 0; | |
e72dc28c | 1255 | STRLEN len; |
2d4fcd5e AJ |
1256 | #ifdef HAS_SIGPROCMASK |
1257 | sigset_t set, save; | |
1258 | SV* save_sv; | |
1259 | #endif | |
a0d0e21e | 1260 | |
e72dc28c | 1261 | s = MgPV(mg,len); |
748a9306 LW |
1262 | if (*s == '_') { |
1263 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1264 | svp = &PL_diehook; |
748a9306 | 1265 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1266 | svp = &PL_warnhook; |
748a9306 | 1267 | else |
cea2e8a9 | 1268 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1269 | i = 0; |
4633a7c4 | 1270 | if (*svp) { |
2d4fcd5e | 1271 | to_dec = *svp; |
4633a7c4 LW |
1272 | *svp = 0; |
1273 | } | |
748a9306 LW |
1274 | } |
1275 | else { | |
1276 | i = whichsig(s); /* ...no, a brick */ | |
e02bfb16 | 1277 | if (i < 0) { |
e476b1b5 | 1278 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1279 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1280 | return 0; |
1281 | } | |
2d4fcd5e AJ |
1282 | #ifdef HAS_SIGPROCMASK |
1283 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1284 | sigemptyset(&set); | |
1285 | sigaddset(&set,i); | |
1286 | sigprocmask(SIG_BLOCK, &set, &save); | |
1287 | ENTER; | |
1288 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1289 | SAVEFREESV(save_sv); | |
1290 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1291 | #endif | |
1292 | PERL_ASYNC_CHECK(); | |
2e34cc90 CL |
1293 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1294 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1295 | #endif | |
23ada85b | 1296 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1297 | sig_ignoring[i] = 0; |
1298 | #endif | |
2e34cc90 | 1299 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
2d4fcd5e | 1300 | sig_defaulting[i] = 0; |
2e34cc90 | 1301 | #endif |
22c35a8c | 1302 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1303 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1304 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1305 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1306 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1307 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1308 | } |
a0d0e21e | 1309 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1310 | if (i) { |
0a8e0eff | 1311 | (void)rsignal(i, &Perl_csighandler); |
2d4fcd5e AJ |
1312 | #ifdef HAS_SIGPROCMASK |
1313 | LEAVE; | |
1314 | #endif | |
1315 | } | |
748a9306 LW |
1316 | else |
1317 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1318 | if(to_dec) |
1319 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1320 | return 0; |
1321 | } | |
e72dc28c | 1322 | s = SvPV_force(sv,len); |
748a9306 | 1323 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1324 | if (i) { |
23ada85b | 1325 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1326 | sig_ignoring[i] = 1; |
1327 | (void)rsignal(i, &Perl_csighandler); | |
1328 | #else | |
ff68c719 | 1329 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1330 | #endif |
2d4fcd5e | 1331 | } |
748a9306 LW |
1332 | } |
1333 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1334 | if (i) | |
2e34cc90 CL |
1335 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1336 | { | |
1337 | sig_defaulting[i] = 1; | |
1338 | (void)rsignal(i, &Perl_csighandler); | |
1339 | } | |
1340 | #else | |
ff68c719 | 1341 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1342 | #endif |
748a9306 | 1343 | } |
79072805 | 1344 | else { |
5aabfad6 | 1345 | /* |
1346 | * We should warn if HINT_STRICT_REFS, but without | |
1347 | * access to a known hint bit in a known OP, we can't | |
1348 | * tell whether HINT_STRICT_REFS is in force or not. | |
1349 | */ | |
46fc3d4c | 1350 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1351 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1352 | if (i) |
0a8e0eff | 1353 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1354 | else |
1355 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1356 | } |
2d4fcd5e AJ |
1357 | #ifdef HAS_SIGPROCMASK |
1358 | if(i) | |
1359 | LEAVE; | |
1360 | #endif | |
1361 | if(to_dec) | |
1362 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1363 | return 0; |
1364 | } | |
64ca3a65 | 1365 | #endif /* !PERL_MICRO */ |
79072805 LW |
1366 | |
1367 | int | |
864dbfa3 | 1368 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1369 | { |
3280af22 | 1370 | PL_sub_generation++; |
463ee0b2 LW |
1371 | return 0; |
1372 | } | |
1373 | ||
1374 | int | |
864dbfa3 | 1375 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1376 | { |
a0d0e21e | 1377 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1378 | PL_amagic_generation++; |
463ee0b2 | 1379 | |
a0d0e21e LW |
1380 | return 0; |
1381 | } | |
463ee0b2 | 1382 | |
946ec16e | 1383 | int |
864dbfa3 | 1384 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1385 | { |
1386 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1387 | I32 i = 0; |
7719e241 | 1388 | |
6ff81951 | 1389 | if (hv) { |
497b47a8 JH |
1390 | (void) hv_iterinit(hv); |
1391 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1392 | i = HvKEYS(hv); | |
1393 | else { | |
1394 | while (hv_iternext(hv)) | |
1395 | i++; | |
1396 | } | |
6ff81951 GS |
1397 | } |
1398 | ||
1399 | sv_setiv(sv, (IV)i); | |
1400 | return 0; | |
1401 | } | |
1402 | ||
1403 | int | |
864dbfa3 | 1404 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1405 | { |
1406 | if (LvTARG(sv)) { | |
1407 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1408 | } |
1409 | return 0; | |
ac27b0f5 | 1410 | } |
946ec16e | 1411 | |
e336de0d | 1412 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1413 | STATIC int |
cea2e8a9 | 1414 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1415 | { |
1416 | dSP; | |
463ee0b2 | 1417 | |
924508f0 GS |
1418 | PUSHMARK(SP); |
1419 | EXTEND(SP, n); | |
33c27489 | 1420 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1421 | if (n > 1) { |
93965878 | 1422 | if (mg->mg_ptr) { |
565764a8 | 1423 | if (mg->mg_len >= 0) |
79cb57f6 | 1424 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1425 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1426 | PUSHs((SV*)mg->mg_ptr); |
1427 | } | |
14befaf4 | 1428 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1429 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1430 | } |
1431 | } | |
1432 | if (n > 2) { | |
1433 | PUSHs(val); | |
88e89b8a | 1434 | } |
463ee0b2 LW |
1435 | PUTBACK; |
1436 | ||
864dbfa3 | 1437 | return call_method(meth, flags); |
946ec16e | 1438 | } |
1439 | ||
76e3520e | 1440 | STATIC int |
cea2e8a9 | 1441 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1442 | { |
1443 | dSP; | |
463ee0b2 | 1444 | |
a0d0e21e LW |
1445 | ENTER; |
1446 | SAVETMPS; | |
e788e7d3 | 1447 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1448 | |
33c27489 | 1449 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1450 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1451 | } |
463ee0b2 | 1452 | |
d3acc0f7 | 1453 | POPSTACK; |
a0d0e21e LW |
1454 | FREETMPS; |
1455 | LEAVE; | |
1456 | return 0; | |
1457 | } | |
463ee0b2 | 1458 | |
a0d0e21e | 1459 | int |
864dbfa3 | 1460 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1461 | { |
1462 | magic_methpack(sv,mg,"FETCH"); | |
1463 | if (mg->mg_ptr) | |
1464 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1465 | return 0; |
1466 | } | |
1467 | ||
1468 | int | |
864dbfa3 | 1469 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1470 | { |
1471 | dSP; | |
a60c0954 | 1472 | ENTER; |
e788e7d3 | 1473 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1474 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1475 | POPSTACK; |
a60c0954 | 1476 | LEAVE; |
463ee0b2 LW |
1477 | return 0; |
1478 | } | |
1479 | ||
1480 | int | |
864dbfa3 | 1481 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1482 | { |
a0d0e21e LW |
1483 | return magic_methpack(sv,mg,"DELETE"); |
1484 | } | |
463ee0b2 | 1485 | |
93965878 NIS |
1486 | |
1487 | U32 | |
864dbfa3 | 1488 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1489 | { |
e336de0d | 1490 | dSP; |
93965878 NIS |
1491 | U32 retval = 0; |
1492 | ||
1493 | ENTER; | |
1494 | SAVETMPS; | |
e788e7d3 | 1495 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1496 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1497 | sv = *PL_stack_sp--; |
a60c0954 | 1498 | retval = (U32) SvIV(sv)-1; |
93965878 | 1499 | } |
d3acc0f7 | 1500 | POPSTACK; |
93965878 NIS |
1501 | FREETMPS; |
1502 | LEAVE; | |
1503 | return retval; | |
1504 | } | |
1505 | ||
cea2e8a9 GS |
1506 | int |
1507 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1508 | { |
1509 | dSP; | |
463ee0b2 | 1510 | |
e336de0d | 1511 | ENTER; |
e788e7d3 | 1512 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1513 | PUSHMARK(SP); |
33c27489 | 1514 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1515 | PUTBACK; |
864dbfa3 | 1516 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1517 | POPSTACK; |
a60c0954 | 1518 | LEAVE; |
463ee0b2 LW |
1519 | return 0; |
1520 | } | |
1521 | ||
1522 | int | |
864dbfa3 | 1523 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1524 | { |
463ee0b2 | 1525 | dSP; |
dff6d3cd | 1526 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1527 | |
1528 | ENTER; | |
a0d0e21e | 1529 | SAVETMPS; |
e788e7d3 | 1530 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1531 | PUSHMARK(SP); |
1532 | EXTEND(SP, 2); | |
33c27489 | 1533 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1534 | if (SvOK(key)) |
1535 | PUSHs(key); | |
1536 | PUTBACK; | |
1537 | ||
864dbfa3 | 1538 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1539 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1540 | |
d3acc0f7 | 1541 | POPSTACK; |
a0d0e21e LW |
1542 | FREETMPS; |
1543 | LEAVE; | |
79072805 LW |
1544 | return 0; |
1545 | } | |
1546 | ||
1547 | int | |
864dbfa3 | 1548 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1549 | { |
1550 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1551 | } |
a0d0e21e LW |
1552 | |
1553 | int | |
864dbfa3 | 1554 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1555 | { |
1556 | OP *o; | |
1557 | I32 i; | |
1558 | GV* gv; | |
1559 | SV** svp; | |
2d8e6c8d | 1560 | STRLEN n_a; |
79072805 | 1561 | |
3280af22 | 1562 | gv = PL_DBline; |
79072805 | 1563 | i = SvTRUE(sv); |
188ea221 | 1564 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1565 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 DM |
1566 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1567 | /* set or clear breakpoint in the relevant control op */ | |
1568 | if (i) | |
1569 | o->op_flags |= OPf_SPECIAL; | |
1570 | else | |
1571 | o->op_flags &= ~OPf_SPECIAL; | |
1572 | } | |
79072805 LW |
1573 | return 0; |
1574 | } | |
1575 | ||
1576 | int | |
864dbfa3 | 1577 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1578 | { |
3280af22 | 1579 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1580 | return 0; |
1581 | } | |
1582 | ||
1583 | int | |
864dbfa3 | 1584 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1585 | { |
3280af22 | 1586 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1587 | return 0; |
1588 | } | |
1589 | ||
1590 | int | |
864dbfa3 | 1591 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1592 | { |
1593 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1594 | |
a0d0e21e | 1595 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1596 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1597 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1598 | I32 i = mg->mg_len; |
7e2040f0 | 1599 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1600 | sv_pos_b2u(lsv, &i); |
1601 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1602 | return 0; |
1603 | } | |
1604 | } | |
1605 | (void)SvOK_off(sv); | |
1606 | return 0; | |
1607 | } | |
1608 | ||
1609 | int | |
864dbfa3 | 1610 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1611 | { |
1612 | SV* lsv = LvTARG(sv); | |
1613 | SSize_t pos; | |
1614 | STRLEN len; | |
c00206c8 | 1615 | STRLEN ulen = 0; |
a0d0e21e LW |
1616 | |
1617 | mg = 0; | |
ac27b0f5 | 1618 | |
a0d0e21e | 1619 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1620 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1621 | if (!mg) { |
1622 | if (!SvOK(sv)) | |
1623 | return 0; | |
14befaf4 DM |
1624 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1625 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1626 | } |
1627 | else if (!SvOK(sv)) { | |
565764a8 | 1628 | mg->mg_len = -1; |
a0d0e21e LW |
1629 | return 0; |
1630 | } | |
1631 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1632 | ||
c485e607 | 1633 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1634 | |
7e2040f0 | 1635 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1636 | ulen = sv_len_utf8(lsv); |
1637 | if (ulen) | |
1638 | len = ulen; | |
a0ed51b3 LW |
1639 | } |
1640 | ||
a0d0e21e LW |
1641 | if (pos < 0) { |
1642 | pos += len; | |
1643 | if (pos < 0) | |
1644 | pos = 0; | |
1645 | } | |
eb160463 | 1646 | else if (pos > (SSize_t)len) |
a0d0e21e | 1647 | pos = len; |
a0ed51b3 LW |
1648 | |
1649 | if (ulen) { | |
1650 | I32 p = pos; | |
1651 | sv_pos_u2b(lsv, &p, 0); | |
1652 | pos = p; | |
1653 | } | |
727405f8 | 1654 | |
565764a8 | 1655 | mg->mg_len = pos; |
71be2cbc | 1656 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1657 | |
79072805 LW |
1658 | return 0; |
1659 | } | |
1660 | ||
1661 | int | |
864dbfa3 | 1662 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1663 | { |
8646b087 | 1664 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1665 | SvFAKE_off(sv); | |
946ec16e | 1666 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1667 | SvFAKE_on(sv); |
1668 | } | |
1669 | else | |
946ec16e | 1670 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1671 | return 0; |
1672 | } | |
1673 | ||
1674 | int | |
864dbfa3 | 1675 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1676 | { |
1677 | register char *s; | |
1678 | GV* gv; | |
2d8e6c8d | 1679 | STRLEN n_a; |
79072805 LW |
1680 | |
1681 | if (!SvOK(sv)) | |
1682 | return 0; | |
2d8e6c8d | 1683 | s = SvPV(sv, n_a); |
79072805 LW |
1684 | if (*s == '*' && s[1]) |
1685 | s++; | |
85e6fe83 | 1686 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1687 | if (sv == (SV*)gv) |
1688 | return 0; | |
1689 | if (GvGP(sv)) | |
88e89b8a | 1690 | gp_free((GV*)sv); |
79072805 | 1691 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1692 | return 0; |
1693 | } | |
1694 | ||
1695 | int | |
864dbfa3 | 1696 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1697 | { |
1698 | STRLEN len; | |
1699 | SV *lsv = LvTARG(sv); | |
1700 | char *tmps = SvPV(lsv,len); | |
1701 | I32 offs = LvTARGOFF(sv); | |
1702 | I32 rem = LvTARGLEN(sv); | |
1703 | ||
9aa983d2 JH |
1704 | if (SvUTF8(lsv)) |
1705 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1706 | if (offs > (I32)len) |
6ff81951 | 1707 | offs = len; |
eb160463 | 1708 | if (rem + offs > (I32)len) |
6ff81951 GS |
1709 | rem = len - offs; |
1710 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1711 | if (SvUTF8(lsv)) |
2ef4b674 | 1712 | SvUTF8_on(sv); |
6ff81951 GS |
1713 | return 0; |
1714 | } | |
1715 | ||
1716 | int | |
864dbfa3 | 1717 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1718 | { |
9aa983d2 JH |
1719 | STRLEN len; |
1720 | char *tmps = SvPV(sv, len); | |
1721 | SV *lsv = LvTARG(sv); | |
1722 | I32 lvoff = LvTARGOFF(sv); | |
1723 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1724 | |
1aa99e6b | 1725 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1726 | sv_utf8_upgrade(lsv); |
1727 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1728 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1729 | SvUTF8_on(lsv); | |
1730 | } | |
9bf12eaf | 1731 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1732 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1733 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1734 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1735 | Safefree(tmps); | |
1aa99e6b IH |
1736 | } |
1737 | else | |
9aa983d2 | 1738 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1739 | |
79072805 LW |
1740 | return 0; |
1741 | } | |
1742 | ||
1743 | int | |
864dbfa3 | 1744 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1745 | { |
565764a8 | 1746 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1747 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1748 | return 0; |
1749 | } | |
1750 | ||
1751 | int | |
864dbfa3 | 1752 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1753 | { |
3280af22 NIS |
1754 | if (PL_localizing) { |
1755 | if (PL_localizing == 1) | |
565764a8 | 1756 | mg->mg_len <<= 1; |
748a9306 | 1757 | else |
565764a8 | 1758 | mg->mg_len >>= 1; |
a0d0e21e | 1759 | } |
3280af22 | 1760 | else if (PL_tainted) |
565764a8 | 1761 | mg->mg_len |= 1; |
748a9306 | 1762 | else |
565764a8 | 1763 | mg->mg_len &= ~1; |
463ee0b2 LW |
1764 | return 0; |
1765 | } | |
1766 | ||
1767 | int | |
864dbfa3 | 1768 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1769 | { |
1770 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1771 | |
1772 | if (!lsv) { | |
155aba94 | 1773 | (void)SvOK_off(sv); |
6ff81951 GS |
1774 | return 0; |
1775 | } | |
6ff81951 | 1776 | |
81e118e0 | 1777 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1778 | return 0; |
1779 | } | |
1780 | ||
1781 | int | |
864dbfa3 | 1782 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1783 | { |
1784 | do_vecset(sv); /* XXX slurp this routine */ | |
1785 | return 0; | |
1786 | } | |
1787 | ||
1788 | int | |
864dbfa3 | 1789 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1790 | { |
71be2cbc | 1791 | SV *targ = Nullsv; |
5f05dabc | 1792 | if (LvTARGLEN(sv)) { |
68dc0745 | 1793 | if (mg->mg_obj) { |
74e13ce4 | 1794 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1795 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1796 | if (he) | |
1797 | targ = HeVAL(he); | |
68dc0745 | 1798 | } |
1799 | else { | |
3c78fafa | 1800 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1801 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1802 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1803 | } | |
3280af22 | 1804 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1805 | /* somebody else defined it for us */ |
1806 | SvREFCNT_dec(LvTARG(sv)); | |
1807 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1808 | LvTARGLEN(sv) = 0; | |
1809 | SvREFCNT_dec(mg->mg_obj); | |
1810 | mg->mg_obj = Nullsv; | |
1811 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1812 | } | |
5f05dabc | 1813 | } |
71be2cbc | 1814 | else |
1815 | targ = LvTARG(sv); | |
3280af22 | 1816 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1817 | return 0; |
1818 | } | |
1819 | ||
1820 | int | |
864dbfa3 | 1821 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1822 | { |
1823 | if (LvTARGLEN(sv)) | |
68dc0745 | 1824 | vivify_defelem(sv); |
1825 | if (LvTARG(sv)) { | |
5f05dabc | 1826 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1827 | SvSETMAGIC(LvTARG(sv)); |
1828 | } | |
5f05dabc | 1829 | return 0; |
1830 | } | |
1831 | ||
71be2cbc | 1832 | void |
864dbfa3 | 1833 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1834 | { |
74e13ce4 GS |
1835 | MAGIC *mg; |
1836 | SV *value = Nullsv; | |
71be2cbc | 1837 | |
14befaf4 | 1838 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1839 | return; |
68dc0745 | 1840 | if (mg->mg_obj) { |
74e13ce4 | 1841 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1842 | STRLEN n_a; |
6d822dc4 MS |
1843 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1844 | if (he) | |
1845 | value = HeVAL(he); | |
3280af22 | 1846 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1847 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1848 | } |
68dc0745 | 1849 | else { |
1850 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1851 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1852 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1853 | else { | |
1854 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1855 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1856 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1857 | } |
1858 | } | |
3e3baf6d | 1859 | (void)SvREFCNT_inc(value); |
68dc0745 | 1860 | SvREFCNT_dec(LvTARG(sv)); |
1861 | LvTARG(sv) = value; | |
71be2cbc | 1862 | LvTARGLEN(sv) = 0; |
68dc0745 | 1863 | SvREFCNT_dec(mg->mg_obj); |
1864 | mg->mg_obj = Nullsv; | |
1865 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1866 | } |
1867 | ||
1868 | int | |
864dbfa3 | 1869 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1870 | { |
1871 | AV *av = (AV*)mg->mg_obj; | |
1872 | SV **svp = AvARRAY(av); | |
1873 | I32 i = AvFILLp(av); | |
1874 | while (i >= 0) { | |
1875 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1876 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1877 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1878 | /* XXX Should we check that it hasn't changed? */ |
1879 | SvRV(svp[i]) = 0; | |
155aba94 | 1880 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1881 | SvWEAKREF_off(svp[i]); |
1882 | svp[i] = &PL_sv_undef; | |
1883 | } | |
1884 | i--; | |
1885 | } | |
1886 | return 0; | |
1887 | } | |
1888 | ||
1889 | int | |
864dbfa3 | 1890 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1891 | { |
565764a8 | 1892 | mg->mg_len = -1; |
c6496cc7 | 1893 | SvSCREAM_off(sv); |
93a17b20 LW |
1894 | return 0; |
1895 | } | |
1896 | ||
1897 | int | |
864dbfa3 | 1898 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1899 | { |
14befaf4 | 1900 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1901 | SvVALID_off(sv); |
1902 | return 0; | |
1903 | } | |
1904 | ||
1905 | int | |
864dbfa3 | 1906 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1907 | { |
14befaf4 | 1908 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1909 | SvCOMPILED_off(sv); |
1910 | return 0; | |
1911 | } | |
1912 | ||
1913 | int | |
864dbfa3 | 1914 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1915 | { |
1916 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1917 | ||
1918 | if (uf && uf->uf_set) | |
24f81a43 | 1919 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1920 | return 0; |
1921 | } | |
1922 | ||
c277df42 | 1923 | int |
faf82a0b AE |
1924 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
1925 | { | |
1926 | sv_unmagic(sv, PERL_MAGIC_qr); | |
1927 | return 0; | |
1928 | } | |
1929 | ||
1930 | int | |
864dbfa3 | 1931 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1932 | { |
1933 | regexp *re = (regexp *)mg->mg_obj; | |
1934 | ReREFCNT_dec(re); | |
1935 | return 0; | |
1936 | } | |
1937 | ||
7a4c00b4 | 1938 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1939 | int |
864dbfa3 | 1940 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1941 | { |
1942 | /* | |
838b5b74 | 1943 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1944 | * and vanished with a faint plop. |
1945 | */ | |
7a4c00b4 | 1946 | if (mg->mg_ptr) { |
1947 | Safefree(mg->mg_ptr); | |
1948 | mg->mg_ptr = NULL; | |
565764a8 | 1949 | mg->mg_len = -1; |
7a4c00b4 | 1950 | } |
bbce6d69 | 1951 | return 0; |
1952 | } | |
7a4c00b4 | 1953 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1954 | |
7e8c5dac HS |
1955 | /* Just clear the UTF-8 cache data. */ |
1956 | int | |
1957 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
1958 | { | |
1959 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ | |
1960 | mg->mg_ptr = 0; | |
1961 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
1962 | return 0; | |
1963 | } | |
1964 | ||
bbce6d69 | 1965 | int |
864dbfa3 | 1966 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1967 | { |
1968 | register char *s; | |
1969 | I32 i; | |
8990e307 | 1970 | STRLEN len; |
79072805 | 1971 | switch (*mg->mg_ptr) { |
748a9306 | 1972 | case '\001': /* ^A */ |
3280af22 | 1973 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1974 | break; |
49460fe6 | 1975 | case '\003': /* ^C */ |
eb160463 | 1976 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
1977 | break; |
1978 | ||
79072805 | 1979 | case '\004': /* ^D */ |
aea4f609 | 1980 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1981 | DEBUG_x(dump_all()); |
1982 | break; | |
28f23441 | 1983 | case '\005': /* ^E */ |
d0063567 | 1984 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 1985 | #ifdef MACOS_TRADITIONAL |
d0063567 | 1986 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1987 | #else |
cd39f2b6 | 1988 | # ifdef VMS |
d0063567 | 1989 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 1990 | # else |
cd39f2b6 | 1991 | # ifdef WIN32 |
d0063567 | 1992 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 1993 | # else |
9fed8b87 | 1994 | # ifdef OS2 |
d0063567 | 1995 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 1996 | # else |
d0063567 DK |
1997 | /* will anyone ever use this? */ |
1998 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1999 | # endif |
048c1ddf IZ |
2000 | # endif |
2001 | # endif | |
22fae026 | 2002 | #endif |
d0063567 DK |
2003 | } |
2004 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2005 | if (PL_encoding) | |
2006 | SvREFCNT_dec(PL_encoding); | |
2007 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2008 | PL_encoding = newSVsv(sv); | |
2009 | } | |
2010 | else { | |
2011 | PL_encoding = Nullsv; | |
2012 | } | |
2013 | } | |
2014 | break; | |
79072805 | 2015 | case '\006': /* ^F */ |
3280af22 | 2016 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2017 | break; |
a0d0e21e | 2018 | case '\010': /* ^H */ |
3280af22 | 2019 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2020 | break; |
9d116dd7 | 2021 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2022 | if (PL_inplace) |
2023 | Safefree(PL_inplace); | |
79072805 | 2024 | if (SvOK(sv)) |
2d8e6c8d | 2025 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 2026 | else |
3280af22 | 2027 | PL_inplace = Nullch; |
79072805 | 2028 | break; |
28f23441 | 2029 | case '\017': /* ^O */ |
ac27b0f5 NIS |
2030 | if (*(mg->mg_ptr+1) == '\0') { |
2031 | if (PL_osname) | |
2032 | Safefree(PL_osname); | |
2033 | if (SvOK(sv)) | |
2034 | PL_osname = savepv(SvPV(sv,len)); | |
2035 | else | |
2036 | PL_osname = Nullch; | |
2037 | } | |
2038 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2039 | if (!PL_compiling.cop_io) | |
2040 | PL_compiling.cop_io = newSVsv(sv); | |
2041 | else | |
2042 | sv_setsv(PL_compiling.cop_io,sv); | |
2043 | } | |
28f23441 | 2044 | break; |
79072805 | 2045 | case '\020': /* ^P */ |
3280af22 | 2046 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
2047 | if (PL_perldb && !PL_DBsingle) |
2048 | init_debugger(); | |
79072805 LW |
2049 | break; |
2050 | case '\024': /* ^T */ | |
88e89b8a | 2051 | #ifdef BIG_TIME |
6b88bc9c | 2052 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2053 | #else |
3280af22 | 2054 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2055 | #endif |
79072805 | 2056 | break; |
fde18df1 | 2057 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2058 | if (*(mg->mg_ptr+1) == '\0') { |
2059 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2060 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2061 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2062 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2063 | } |
599cee73 | 2064 | } |
0a378802 | 2065 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2066 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2067 | if (!SvPOK(sv) && PL_localizing) { |
2068 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2069 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2070 | break; |
2071 | } | |
f4fc7782 | 2072 | { |
b5477537 | 2073 | STRLEN len, i; |
d3a7d8c7 | 2074 | int accumulate = 0 ; |
f4fc7782 | 2075 | int any_fatals = 0 ; |
d3a7d8c7 | 2076 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
2077 | for (i = 0 ; i < len ; ++i) { |
2078 | accumulate |= ptr[i] ; | |
2079 | any_fatals |= (ptr[i] & 0xAA) ; | |
2080 | } | |
d3a7d8c7 GS |
2081 | if (!accumulate) |
2082 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2083 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2084 | PL_compiling.cop_warnings = pWARN_ALL; | |
2085 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2086 | } |
d3a7d8c7 GS |
2087 | else { |
2088 | if (specialWARN(PL_compiling.cop_warnings)) | |
2089 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2090 | else | |
2091 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2092 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2093 | PL_dowarn |= G_WARN_ONCE ; | |
2094 | } | |
f4fc7782 | 2095 | |
d3a7d8c7 | 2096 | } |
4438c4b7 | 2097 | } |
971a9dd3 | 2098 | } |
79072805 LW |
2099 | break; |
2100 | case '.': | |
3280af22 NIS |
2101 | if (PL_localizing) { |
2102 | if (PL_localizing == 1) | |
7766f137 | 2103 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2104 | } |
3280af22 | 2105 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2106 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2107 | break; |
2108 | case '^': | |
3280af22 | 2109 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2110 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2111 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2112 | break; |
2113 | case '~': | |
3280af22 | 2114 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2115 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2116 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2117 | break; |
2118 | case '=': | |
632db599 | 2119 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2120 | break; |
2121 | case '-': | |
632db599 | 2122 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2123 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2124 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2125 | break; |
2126 | case '%': | |
632db599 | 2127 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2128 | break; |
2129 | case '|': | |
4b65379b | 2130 | { |
3280af22 | 2131 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2132 | if(!io) |
2133 | break; | |
4b65379b CS |
2134 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2135 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2136 | else { | |
2137 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2138 | PerlIO *ofp = IoOFP(io); | |
2139 | if (ofp) | |
2140 | (void)PerlIO_flush(ofp); | |
2141 | IoFLAGS(io) |= IOf_FLUSH; | |
2142 | } | |
2143 | } | |
79072805 LW |
2144 | } |
2145 | break; | |
2146 | case '*': | |
463ee0b2 | 2147 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 2148 | PL_multiline = (i != 0); |
79072805 LW |
2149 | break; |
2150 | case '/': | |
3280af22 | 2151 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2152 | PL_rs = newSVsv(sv); |
79072805 LW |
2153 | break; |
2154 | case '\\': | |
7889fe52 NIS |
2155 | if (PL_ors_sv) |
2156 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2157 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2158 | PL_ors_sv = newSVsv(sv); |
009c130f | 2159 | } |
e3c19b7b | 2160 | else { |
7889fe52 | 2161 | PL_ors_sv = Nullsv; |
e3c19b7b | 2162 | } |
79072805 LW |
2163 | break; |
2164 | case ',': | |
7889fe52 NIS |
2165 | if (PL_ofs_sv) |
2166 | SvREFCNT_dec(PL_ofs_sv); | |
2167 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2168 | PL_ofs_sv = newSVsv(sv); | |
2169 | } | |
2170 | else { | |
2171 | PL_ofs_sv = Nullsv; | |
2172 | } | |
79072805 LW |
2173 | break; |
2174 | case '#': | |
3280af22 NIS |
2175 | if (PL_ofmt) |
2176 | Safefree(PL_ofmt); | |
2d8e6c8d | 2177 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2178 | break; |
2179 | case '[': | |
3280af22 | 2180 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2181 | break; |
2182 | case '?': | |
ff0cee69 | 2183 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2184 | if (PL_localizing == 2) { |
2185 | PL_statusvalue = LvTARGOFF(sv); | |
2186 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2187 | } |
2188 | else | |
2189 | #endif | |
2190 | #ifdef VMSISH_STATUS | |
2191 | if (VMSISH_STATUS) | |
2192 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2193 | else | |
2194 | #endif | |
2195 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2196 | break; |
2197 | case '!': | |
93189314 JH |
2198 | { |
2199 | #ifdef VMS | |
2200 | # define PERL_VMS_BANG vaxc$errno | |
2201 | #else | |
2202 | # define PERL_VMS_BANG 0 | |
2203 | #endif | |
91487cfc | 2204 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2205 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2206 | } | |
79072805 LW |
2207 | break; |
2208 | case '<': | |
3280af22 NIS |
2209 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2210 | if (PL_delaymagic) { | |
2211 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2212 | break; /* don't do magic till later */ |
2213 | } | |
2214 | #ifdef HAS_SETRUID | |
b28d0864 | 2215 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2216 | #else |
2217 | #ifdef HAS_SETREUID | |
3280af22 | 2218 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2219 | #else |
85e6fe83 | 2220 | #ifdef HAS_SETRESUID |
b28d0864 | 2221 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2222 | #else |
b28d0864 NIS |
2223 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2224 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2225 | else { |
d8eceb89 | 2226 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2227 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2228 | } |
79072805 LW |
2229 | #endif |
2230 | #endif | |
85e6fe83 | 2231 | #endif |
d8eceb89 | 2232 | PL_uid = PerlProc_getuid(); |
3280af22 | 2233 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2234 | break; |
2235 | case '>': | |
3280af22 NIS |
2236 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2237 | if (PL_delaymagic) { | |
2238 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2239 | break; /* don't do magic till later */ |
2240 | } | |
2241 | #ifdef HAS_SETEUID | |
3280af22 | 2242 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2243 | #else |
2244 | #ifdef HAS_SETREUID | |
b28d0864 | 2245 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2246 | #else |
2247 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2248 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2249 | #else |
b28d0864 NIS |
2250 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2251 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2252 | else { |
e8ee3774 | 2253 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2254 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2255 | } |
79072805 LW |
2256 | #endif |
2257 | #endif | |
85e6fe83 | 2258 | #endif |
d8eceb89 | 2259 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2260 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2261 | break; |
2262 | case '(': | |
3280af22 NIS |
2263 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2264 | if (PL_delaymagic) { | |
2265 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2266 | break; /* don't do magic till later */ |
2267 | } | |
2268 | #ifdef HAS_SETRGID | |
b28d0864 | 2269 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2270 | #else |
2271 | #ifdef HAS_SETREGID | |
3280af22 | 2272 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2273 | #else |
2274 | #ifdef HAS_SETRESGID | |
b28d0864 | 2275 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2276 | #else |
b28d0864 NIS |
2277 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2278 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2279 | else { |
d8eceb89 | 2280 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2281 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2282 | } |
79072805 LW |
2283 | #endif |
2284 | #endif | |
85e6fe83 | 2285 | #endif |
d8eceb89 | 2286 | PL_gid = PerlProc_getgid(); |
3280af22 | 2287 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2288 | break; |
2289 | case ')': | |
5cd24f17 | 2290 | #ifdef HAS_SETGROUPS |
2291 | { | |
2d8e6c8d | 2292 | char *p = SvPV(sv, len); |
5cd24f17 | 2293 | Groups_t gary[NGROUPS]; |
2294 | ||
5cd24f17 | 2295 | while (isSPACE(*p)) |
2296 | ++p; | |
2d4389e4 | 2297 | PL_egid = Atol(p); |
5cd24f17 | 2298 | for (i = 0; i < NGROUPS; ++i) { |
2299 | while (*p && !isSPACE(*p)) | |
2300 | ++p; | |
2301 | while (isSPACE(*p)) | |
2302 | ++p; | |
2303 | if (!*p) | |
2304 | break; | |
2d4389e4 | 2305 | gary[i] = Atol(p); |
5cd24f17 | 2306 | } |
8cc95fdb | 2307 | if (i) |
2308 | (void)setgroups(i, gary); | |
5cd24f17 | 2309 | } |
2310 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2311 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2312 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2313 | if (PL_delaymagic) { |
2314 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2315 | break; /* don't do magic till later */ |
2316 | } | |
2317 | #ifdef HAS_SETEGID | |
3280af22 | 2318 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2319 | #else |
2320 | #ifdef HAS_SETREGID | |
b28d0864 | 2321 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2322 | #else |
2323 | #ifdef HAS_SETRESGID | |
b28d0864 | 2324 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2325 | #else |
b28d0864 NIS |
2326 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2327 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2328 | else { |
d8eceb89 | 2329 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2330 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2331 | } |
79072805 LW |
2332 | #endif |
2333 | #endif | |
85e6fe83 | 2334 | #endif |
d8eceb89 | 2335 | PL_egid = PerlProc_getegid(); |
3280af22 | 2336 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2337 | break; |
2338 | case ':': | |
2d8e6c8d | 2339 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2340 | break; |
cd39f2b6 | 2341 | #ifndef MACOS_TRADITIONAL |
79072805 | 2342 | case '0': |
e2975953 | 2343 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2344 | #ifdef HAS_SETPROCTITLE |
2345 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2346 | * show a string from the process struct and provide | |
2347 | * the setproctitle() routine to manipulate that. */ | |
2348 | { | |
2349 | s = SvPV(sv, len); | |
98b76f99 | 2350 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2351 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2352 | * but not the "(perl) suffix from the ps(1) |
2353 | * output, because that's what ps(1) shows if the | |
2354 | * argv[] is modified. */ | |
6f2ad931 | 2355 | setproctitle("-%s", s); |
9aad2c0e | 2356 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2357 | /* This doesn't really work if you assume that |
2358 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2359 | * because in ps(1) output the result will be like | |
2360 | * sprintf("perl: %s (perl)", s) | |
2361 | * I guess this is a security feature: | |
2362 | * one (a user process) cannot get rid of the original name. | |
2363 | * --jhi */ | |
2364 | setproctitle("%s", s); | |
2365 | # endif | |
2366 | } | |
2367 | #endif | |
17aa7f3d JH |
2368 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2369 | { | |
2370 | union pstun un; | |
2371 | s = SvPV(sv, len); | |
2372 | un.pst_command = s; | |
2373 | pstat(PSTAT_SETCMD, un, len, 0, 0); | |
2374 | } | |
2375 | #endif | |
3280af22 NIS |
2376 | if (!PL_origalen) { |
2377 | s = PL_origargv[0]; | |
79072805 LW |
2378 | s += strlen(s); |
2379 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2380 | for (i = 1; i < PL_origargc; i++) { |
2381 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2382 | #ifdef OS2 |
6b88bc9c | 2383 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2384 | #endif |
fb73857a | 2385 | ) |
379c4362 GS |
2386 | { |
2387 | ++s; | |
2388 | s += strlen(s); /* this one is ok too */ | |
2389 | } | |
fb73857a | 2390 | else |
2391 | break; | |
79072805 | 2392 | } |
bbce6d69 | 2393 | /* can grab env area too? */ |
4efc5df6 GS |
2394 | if (PL_origenviron |
2395 | #ifdef USE_ITHREADS | |
2396 | && PL_curinterp == aTHX | |
2397 | #endif | |
2398 | && (PL_origenviron[0] == s + 1)) | |
2399 | { | |
66b1d557 | 2400 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2401 | /* force copy of environment */ |
3280af22 | 2402 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2403 | if (PL_origenviron[i] == s + 1) { |
2404 | ++s; | |
2405 | s += strlen(s); | |
2406 | } | |
fb73857a | 2407 | else |
2408 | break; | |
79072805 | 2409 | } |
3280af22 | 2410 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2411 | } |
a0d0e21e | 2412 | s = SvPV_force(sv,len); |
8990e307 | 2413 | i = len; |
eb160463 | 2414 | if (i >= (I32)PL_origalen) { |
3280af22 | 2415 | i = PL_origalen; |
fb73857a | 2416 | /* don't allow system to limit $0 seen by script */ |
2417 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2418 | Copy(s, PL_origargv[0], i, char); |
2419 | s = PL_origargv[0]+i; | |
fb73857a | 2420 | *s = '\0'; |
79072805 LW |
2421 | } |
2422 | else { | |
3280af22 NIS |
2423 | Copy(s, PL_origargv[0], i, char); |
2424 | s = PL_origargv[0]+i; | |
79072805 | 2425 | *s++ = '\0'; |
eb160463 | 2426 | while (++i < (I32)PL_origalen) |
f1c3b2ef | 2427 | *s++ = '\0'; |
3280af22 NIS |
2428 | for (i = 1; i < PL_origargc; i++) |
2429 | PL_origargv[i] = Nullch; | |
79072805 | 2430 | } |
e2975953 | 2431 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2432 | break; |
cd39f2b6 | 2433 | #endif |
79072805 LW |
2434 | } |
2435 | return 0; | |
2436 | } | |
2437 | ||
2438 | I32 | |
864dbfa3 | 2439 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2440 | { |
2441 | register char **sigv; | |
2442 | ||
e02bfb16 | 2443 | for (sigv = PL_sig_name; *sigv; sigv++) |
79072805 | 2444 | if (strEQ(sig,*sigv)) |
22c35a8c | 2445 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2446 | #ifdef SIGCLD |
2447 | if (strEQ(sig,"CHLD")) | |
2448 | return SIGCLD; | |
2449 | #endif | |
2450 | #ifdef SIGCHLD | |
2451 | if (strEQ(sig,"CLD")) | |
2452 | return SIGCHLD; | |
2453 | #endif | |
7f1236c0 | 2454 | return -1; |
79072805 LW |
2455 | } |
2456 | ||
df3728a2 | 2457 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2458 | static SV* sig_sv; |
df3728a2 | 2459 | #endif |
84902520 | 2460 | |
ecfc5424 | 2461 | Signal_t |
cea2e8a9 | 2462 | Perl_sighandler(int sig) |
79072805 | 2463 | { |
1018e26f NIS |
2464 | #ifdef PERL_GET_SIG_CONTEXT |
2465 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2466 | #else |
cea2e8a9 | 2467 | dTHX; |
71d280e3 | 2468 | #endif |
79072805 | 2469 | dSP; |
00d579c5 | 2470 | GV *gv = Nullgv; |
a0d0e21e | 2471 | HV *st; |
b7953727 | 2472 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2473 | CV *cv = Nullcv; |
533c011a | 2474 | OP *myop = PL_op; |
84902520 | 2475 | U32 flags = 0; |
3280af22 | 2476 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2477 | |
3280af22 | 2478 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2479 | flags |= 1; |
3280af22 | 2480 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2481 | flags |= 4; |
3280af22 | 2482 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2483 | flags |= 8; |
3280af22 | 2484 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2485 | flags |= 16; |
2486 | ||
727405f8 | 2487 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2488 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2489 | PL_sig_name[sig]); |
2490 | exit(sig); | |
2491 | } | |
ff0cee69 | 2492 | |
84902520 TB |
2493 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2494 | infinity, so we fix 4 (in fact 5): */ | |
2495 | if (flags & 1) { | |
3280af22 | 2496 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2497 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2498 | } |
ac27b0f5 | 2499 | if (flags & 4) |
3280af22 | 2500 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2501 | if (flags & 8) { |
3280af22 NIS |
2502 | PL_retstack_ix++; |
2503 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2504 | } |
2505 | if (flags & 16) | |
3280af22 | 2506 | PL_scopestack_ix += 1; |
84902520 | 2507 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2508 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2509 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2510 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2511 | |
a0d0e21e | 2512 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2513 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2514 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2515 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2516 | : ((cv && CvGV(cv)) |
2517 | ? GvENAME(CvGV(cv)) | |
2518 | : "__ANON__"))); | |
2519 | goto cleanup; | |
79072805 LW |
2520 | } |
2521 | ||
22c35a8c GS |
2522 | if(PL_psig_name[sig]) { |
2523 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2524 | flags |= 64; |
df3728a2 | 2525 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2526 | sig_sv = sv; |
df3728a2 | 2527 | #endif |
84902520 | 2528 | } else { |
ff0cee69 | 2529 | sv = sv_newmortal(); |
22c35a8c | 2530 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2531 | } |
e336de0d | 2532 | |
e788e7d3 | 2533 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2534 | PUSHMARK(SP); |
79072805 | 2535 | PUSHs(sv); |
79072805 | 2536 | PUTBACK; |
a0d0e21e | 2537 | |
1b266415 | 2538 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2539 | |
d3acc0f7 | 2540 | POPSTACK; |
1b266415 | 2541 | if (SvTRUE(ERRSV)) { |
1d615522 | 2542 | #ifndef PERL_MICRO |
983dbef6 | 2543 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2544 | /* Handler "died", for example to get out of a restart-able read(). |
2545 | * Before we re-do that on its behalf re-enable the signal which was | |
2546 | * blocked by the system when we entered. | |
2547 | */ | |
2548 | sigset_t set; | |
2549 | sigemptyset(&set); | |
2550 | sigaddset(&set,sig); | |
2551 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2552 | #else | |
2553 | /* Not clear if this will work */ | |
2554 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2555 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2556 | #endif |
1d615522 | 2557 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2558 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2559 | } |
00d579c5 | 2560 | cleanup: |
84902520 | 2561 | if (flags & 1) |
3280af22 | 2562 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2563 | if (flags & 4) |
3280af22 | 2564 | PL_markstack_ptr--; |
ac27b0f5 | 2565 | if (flags & 8) |
3280af22 | 2566 | PL_retstack_ix--; |
84902520 | 2567 | if (flags & 16) |
3280af22 | 2568 | PL_scopestack_ix -= 1; |
84902520 TB |
2569 | if (flags & 64) |
2570 | SvREFCNT_dec(sv); | |
533c011a | 2571 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2572 | |
3280af22 NIS |
2573 | PL_Sv = tSv; /* Restore global temporaries. */ |
2574 | PL_Xpv = tXpv; | |
79072805 LW |
2575 | return; |
2576 | } | |
4e35701f NIS |
2577 | |
2578 | ||
51371543 | 2579 | static void |
acfe0abc | 2580 | restore_magic(pTHX_ void *p) |
51371543 | 2581 | { |
48944bdf | 2582 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2583 | SV* sv = mgs->mgs_sv; |
2584 | ||
2585 | if (!sv) | |
2586 | return; | |
2587 | ||
2588 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2589 | { | |
2590 | if (mgs->mgs_flags) | |
2591 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2592 | else | |
2593 | mg_magical(sv); | |
2594 | if (SvGMAGICAL(sv)) | |
2595 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2596 | } | |
2597 | ||
2598 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2599 | ||
2600 | /* If we're still on top of the stack, pop us off. (That condition | |
2601 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2602 | * if it's being called via leave_scope.) | |
2603 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2604 | * may leave alloc gunk on the savestack, and some code | |
2605 | * (e.g. sighandler) doesn't expect that... | |
2606 | */ | |
2607 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2608 | { | |
2609 | I32 popval = SSPOPINT; | |
c76ac1ee | 2610 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2611 | PL_savestack_ix -= 2; |
2612 | popval = SSPOPINT; | |
2613 | assert(popval == SAVEt_ALLOC); | |
2614 | popval = SSPOPINT; | |
2615 | PL_savestack_ix -= popval; | |
2616 | } | |
2617 | ||
2618 | } | |
2619 | ||
2620 | static void | |
acfe0abc | 2621 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2622 | { |
51371543 GS |
2623 | U32 flags = *(U32*)p; |
2624 | ||
2625 | if (flags & 1) | |
2626 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2627 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2628 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2629 | if (flags & 64) |
2630 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2631 | #endif |
51371543 | 2632 | } |
1018e26f NIS |
2633 | |
2634 |