Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4c79ee7a | 3 | * Copyright (c) 1991-2003, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
ccfc67b7 JH |
15 | /* |
16 | =head1 Magical Functions | |
17 | */ | |
18 | ||
79072805 | 19 | #include "EXTERN.h" |
864dbfa3 | 20 | #define PERL_IN_MG_C |
79072805 LW |
21 | #include "perl.h" |
22 | ||
5cd24f17 | 23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 | |
26 | # endif | |
b7953727 JH |
27 | # ifdef I_GRP |
28 | # include <grp.h> | |
29 | # endif | |
188ea221 CS |
30 | #endif |
31 | ||
17aa7f3d JH |
32 | #ifdef __hpux |
33 | # include <sys/pstat.h> | |
34 | #endif | |
35 | ||
e69880a5 CB |
36 | Signal_t Perl_csighandler(int sig); |
37 | ||
23ada85b | 38 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 39 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 40 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 41 | #endif |
2e34cc90 | 42 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 | 43 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 CL |
44 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
45 | #endif | |
85b332e2 | 46 | |
acfe0abc GS |
47 | static void restore_magic(pTHX_ void *p); |
48 | static void unwind_handler_stack(pTHX_ void *p); | |
51371543 | 49 | |
c07a80fd | 50 | /* |
51 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
52 | */ | |
53 | ||
54 | struct magic_state { | |
55 | SV* mgs_sv; | |
56 | U32 mgs_flags; | |
455ece5e | 57 | I32 mgs_ss_ix; |
c07a80fd | 58 | }; |
455ece5e | 59 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
60 | |
61 | STATIC void | |
8fb26106 | 62 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 63 | { |
455ece5e | 64 | MGS* mgs; |
c07a80fd | 65 | assert(SvMAGICAL(sv)); |
765f542d NC |
66 | #ifdef PERL_COPY_ON_WRITE |
67 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ | |
68 | if (SvIsCOW(sv)) | |
69 | sv_force_normal(sv); | |
70 | #endif | |
c07a80fd | 71 | |
685f876f | 72 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
73 | |
74 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 75 | mgs->mgs_sv = sv; |
76 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 77 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 78 | |
79 | SvMAGICAL_off(sv); | |
80 | SvREADONLY_off(sv); | |
06759ea0 | 81 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 82 | } |
83 | ||
954c1994 GS |
84 | /* |
85 | =for apidoc mg_magical | |
86 | ||
87 | Turns on the magical status of an SV. See C<sv_magic>. | |
88 | ||
89 | =cut | |
90 | */ | |
91 | ||
8990e307 | 92 | void |
864dbfa3 | 93 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
94 | { |
95 | MAGIC* mg; | |
96 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
97 | MGVTBL* vtbl = mg->mg_virtual; | |
98 | if (vtbl) { | |
2b260de0 | 99 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
100 | SvGMAGICAL_on(sv); |
101 | if (vtbl->svt_set) | |
102 | SvSMAGICAL_on(sv); | |
2b260de0 | 103 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
104 | SvRMAGICAL_on(sv); |
105 | } | |
106 | } | |
107 | } | |
108 | ||
954c1994 GS |
109 | /* |
110 | =for apidoc mg_get | |
111 | ||
112 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
113 | ||
114 | =cut | |
115 | */ | |
116 | ||
79072805 | 117 | int |
864dbfa3 | 118 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 119 | { |
ff76feab AMS |
120 | int new = 0; |
121 | MAGIC *newmg, *head, *cur, *mg; | |
122 | I32 mgs_ix = SSNEW(sizeof(MGS)); | |
463ee0b2 | 123 | |
455ece5e | 124 | save_magic(mgs_ix, sv); |
463ee0b2 | 125 | |
ff76feab AMS |
126 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
127 | list of magic. svt_get() may delete the current entry, add new | |
128 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
129 | ||
130 | newmg = cur = head = mg = SvMAGIC(sv); | |
131 | while (mg) { | |
132 | MGVTBL *vtbl = mg->mg_virtual; | |
133 | ||
2b260de0 | 134 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 135 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
ff76feab AMS |
136 | /* Don't restore the flags for this entry if it was deleted. */ |
137 | if (mg->mg_flags & MGf_GSKIP) | |
138 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 139 | } |
ff76feab AMS |
140 | |
141 | mg = mg->mg_moremagic; | |
142 | ||
143 | if (new) { | |
144 | /* Have we finished with the new entries we saw? Start again | |
145 | where we left off (unless there are more new entries). */ | |
146 | if (mg == head) { | |
147 | new = 0; | |
148 | mg = cur; | |
149 | head = newmg; | |
150 | } | |
151 | } | |
152 | ||
153 | /* Were any new entries added? */ | |
154 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
155 | new = 1; | |
156 | cur = mg; | |
157 | mg = newmg; | |
760ac839 | 158 | } |
79072805 | 159 | } |
463ee0b2 | 160 | |
acfe0abc | 161 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
162 | return 0; |
163 | } | |
164 | ||
954c1994 GS |
165 | /* |
166 | =for apidoc mg_set | |
167 | ||
168 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
169 | ||
170 | =cut | |
171 | */ | |
172 | ||
79072805 | 173 | int |
864dbfa3 | 174 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 175 | { |
8fb26106 | 176 | I32 mgs_ix; |
79072805 | 177 | MAGIC* mg; |
463ee0b2 LW |
178 | MAGIC* nextmg; |
179 | ||
455ece5e AD |
180 | mgs_ix = SSNEW(sizeof(MGS)); |
181 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
182 | |
183 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 184 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 185 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
186 | if (mg->mg_flags & MGf_GSKIP) { |
187 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 188 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 189 | } |
2b260de0 | 190 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 191 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 192 | } |
463ee0b2 | 193 | |
acfe0abc | 194 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
195 | return 0; |
196 | } | |
197 | ||
954c1994 GS |
198 | /* |
199 | =for apidoc mg_length | |
200 | ||
201 | Report on the SV's length. See C<sv_magic>. | |
202 | ||
203 | =cut | |
204 | */ | |
205 | ||
79072805 | 206 | U32 |
864dbfa3 | 207 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
208 | { |
209 | MAGIC* mg; | |
463ee0b2 | 210 | STRLEN len; |
463ee0b2 | 211 | |
79072805 LW |
212 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
213 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 214 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 215 | I32 mgs_ix; |
48e43a1c | 216 | |
455ece5e AD |
217 | mgs_ix = SSNEW(sizeof(MGS)); |
218 | save_magic(mgs_ix, sv); | |
a0d0e21e | 219 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 220 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 221 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
222 | return len; |
223 | } | |
224 | } | |
225 | ||
7719e241 | 226 | if (DO_UTF8(sv)) |
5636d518 DB |
227 | { |
228 | U8 *s = (U8*)SvPV(sv, len); | |
229 | len = Perl_utf8_length(aTHX_ s, s + len); | |
230 | } | |
231 | else | |
232 | (void)SvPV(sv, len); | |
463ee0b2 | 233 | return len; |
79072805 LW |
234 | } |
235 | ||
8fb26106 | 236 | I32 |
864dbfa3 | 237 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
238 | { |
239 | MAGIC* mg; | |
240 | I32 len; | |
ac27b0f5 | 241 | |
93965878 NIS |
242 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
243 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 244 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 245 | I32 mgs_ix; |
455ece5e AD |
246 | |
247 | mgs_ix = SSNEW(sizeof(MGS)); | |
248 | save_magic(mgs_ix, sv); | |
93965878 | 249 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 250 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 251 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
252 | return len; |
253 | } | |
254 | } | |
255 | ||
256 | switch(SvTYPE(sv)) { | |
257 | case SVt_PVAV: | |
258 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
259 | return len; | |
260 | case SVt_PVHV: | |
261 | /* FIXME */ | |
262 | default: | |
cea2e8a9 | 263 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
264 | break; |
265 | } | |
266 | return 0; | |
267 | } | |
268 | ||
954c1994 GS |
269 | /* |
270 | =for apidoc mg_clear | |
271 | ||
272 | Clear something magical that the SV represents. See C<sv_magic>. | |
273 | ||
274 | =cut | |
275 | */ | |
276 | ||
79072805 | 277 | int |
864dbfa3 | 278 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 279 | { |
8fb26106 | 280 | I32 mgs_ix; |
79072805 | 281 | MAGIC* mg; |
463ee0b2 | 282 | |
455ece5e AD |
283 | mgs_ix = SSNEW(sizeof(MGS)); |
284 | save_magic(mgs_ix, sv); | |
463ee0b2 | 285 | |
79072805 LW |
286 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
287 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e | 288 | /* omit GSKIP -- never set here */ |
727405f8 | 289 | |
2b260de0 | 290 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 291 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 292 | } |
463ee0b2 | 293 | |
acfe0abc | 294 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
295 | return 0; |
296 | } | |
297 | ||
954c1994 GS |
298 | /* |
299 | =for apidoc mg_find | |
300 | ||
301 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
302 | ||
303 | =cut | |
304 | */ | |
305 | ||
93a17b20 | 306 | MAGIC* |
864dbfa3 | 307 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
308 | { |
309 | MAGIC* mg; | |
3f8f4626 DC |
310 | if (!sv) |
311 | return 0; | |
93a17b20 LW |
312 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
313 | if (mg->mg_type == type) | |
314 | return mg; | |
315 | } | |
316 | return 0; | |
317 | } | |
318 | ||
954c1994 GS |
319 | /* |
320 | =for apidoc mg_copy | |
321 | ||
322 | Copies the magic from one SV to another. See C<sv_magic>. | |
323 | ||
324 | =cut | |
325 | */ | |
326 | ||
79072805 | 327 | int |
864dbfa3 | 328 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 329 | { |
463ee0b2 | 330 | int count = 0; |
79072805 | 331 | MAGIC* mg; |
463ee0b2 | 332 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 NIS |
333 | MGVTBL* vtbl = mg->mg_virtual; |
334 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ | |
335 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
336 | } | |
337 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 338 | sv_magic(nsv, |
14befaf4 DM |
339 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
340 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
341 | ? sv : mg->mg_obj, | |
33c27489 | 342 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 343 | count++; |
79072805 | 344 | } |
79072805 | 345 | } |
463ee0b2 | 346 | return count; |
79072805 LW |
347 | } |
348 | ||
954c1994 GS |
349 | /* |
350 | =for apidoc mg_free | |
351 | ||
352 | Free any magic storage used by the SV. See C<sv_magic>. | |
353 | ||
354 | =cut | |
355 | */ | |
356 | ||
79072805 | 357 | int |
864dbfa3 | 358 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
359 | { |
360 | MAGIC* mg; | |
361 | MAGIC* moremagic; | |
362 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
363 | MGVTBL* vtbl = mg->mg_virtual; | |
364 | moremagic = mg->mg_moremagic; | |
2b260de0 | 365 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 366 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 367 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 | 368 | if (mg->mg_len > 0) |
88e89b8a | 369 | Safefree(mg->mg_ptr); |
565764a8 | 370 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 371 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 372 | } |
b881518d JH |
373 | if (mg->mg_flags & MGf_REFCOUNTED) |
374 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
375 | Safefree(mg); |
376 | } | |
377 | SvMAGIC(sv) = 0; | |
378 | return 0; | |
379 | } | |
380 | ||
d460ef45 | 381 | |
79072805 LW |
382 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
383 | #include <signal.h> | |
384 | #endif | |
385 | ||
942e002e | 386 | U32 |
864dbfa3 | 387 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 388 | { |
6cef1e77 | 389 | register REGEXP *rx; |
6cef1e77 | 390 | |
aaa362c4 | 391 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
392 | if (mg->mg_obj) /* @+ */ |
393 | return rx->nparens; | |
394 | else /* @- */ | |
395 | return rx->lastparen; | |
396 | } | |
ac27b0f5 | 397 | |
942e002e | 398 | return (U32)-1; |
6cef1e77 IZ |
399 | } |
400 | ||
401 | int | |
864dbfa3 | 402 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 403 | { |
6cef1e77 | 404 | register I32 paren; |
cf93c79d | 405 | register I32 s; |
6cef1e77 IZ |
406 | register I32 i; |
407 | register REGEXP *rx; | |
cf93c79d | 408 | I32 t; |
6cef1e77 | 409 | |
aaa362c4 | 410 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
411 | paren = mg->mg_len; |
412 | if (paren < 0) | |
413 | return 0; | |
eb160463 | 414 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
415 | (s = rx->startp[paren]) != -1 && |
416 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
417 | { |
418 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 419 | i = t; |
6cef1e77 | 420 | else /* @- */ |
cf93c79d | 421 | i = s; |
727405f8 | 422 | |
a30b2f1f | 423 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b | 424 | char *b = rx->subbeg; |
0064a8a9 JH |
425 | if (b) |
426 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 427 | } |
0064a8a9 JH |
428 | |
429 | sv_setiv(sv, i); | |
6cef1e77 IZ |
430 | } |
431 | } | |
432 | return 0; | |
433 | } | |
434 | ||
e4b89193 | 435 | int |
a29d06ed MG |
436 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
437 | { | |
a29d06ed | 438 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
439 | /* NOT REACHED */ |
440 | return 0; | |
a29d06ed MG |
441 | } |
442 | ||
93a17b20 | 443 | U32 |
864dbfa3 | 444 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
445 | { |
446 | register I32 paren; | |
93a17b20 | 447 | register I32 i; |
d9f97599 | 448 | register REGEXP *rx; |
a197cbdd | 449 | I32 s1, t1; |
93a17b20 LW |
450 | |
451 | switch (*mg->mg_ptr) { | |
452 | case '1': case '2': case '3': case '4': | |
453 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 454 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 455 | |
ffc61ed2 | 456 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 457 | getparen: |
eb160463 | 458 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
459 | (s1 = rx->startp[paren]) != -1 && |
460 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 461 | { |
cf93c79d | 462 | i = t1 - s1; |
a197cbdd | 463 | getlen: |
a30b2f1f | 464 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
ffc61ed2 | 465 | char *s = rx->subbeg + s1; |
a197cbdd | 466 | char *send = rx->subbeg + t1; |
ffc61ed2 | 467 | |
6d5fa195 | 468 | i = t1 - s1; |
60425c38 JH |
469 | if (is_utf8_string((U8*)s, i)) |
470 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 471 | } |
ffc61ed2 | 472 | if (i < 0) |
0844c848 | 473 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 474 | return i; |
93a17b20 | 475 | } |
235bddc8 NIS |
476 | else { |
477 | if (ckWARN(WARN_UNINITIALIZED)) | |
478 | report_uninit(); | |
479 | } | |
480 | } | |
481 | else { | |
482 | if (ckWARN(WARN_UNINITIALIZED)) | |
483 | report_uninit(); | |
93a17b20 | 484 | } |
748a9306 | 485 | return 0; |
93a17b20 | 486 | case '+': |
aaa362c4 | 487 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 488 | paren = rx->lastparen; |
13f57bf8 CS |
489 | if (paren) |
490 | goto getparen; | |
93a17b20 | 491 | } |
748a9306 | 492 | return 0; |
a01268b5 JH |
493 | case '\016': /* ^N */ |
494 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
495 | paren = rx->lastcloseparen; | |
496 | if (paren) | |
497 | goto getparen; | |
498 | } | |
499 | return 0; | |
93a17b20 | 500 | case '`': |
aaa362c4 | 501 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
502 | if (rx->startp[0] != -1) { |
503 | i = rx->startp[0]; | |
a197cbdd GS |
504 | if (i > 0) { |
505 | s1 = 0; | |
506 | t1 = i; | |
507 | goto getlen; | |
508 | } | |
93a17b20 | 509 | } |
93a17b20 | 510 | } |
748a9306 | 511 | return 0; |
93a17b20 | 512 | case '\'': |
aaa362c4 | 513 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
514 | if (rx->endp[0] != -1) { |
515 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
516 | if (i > 0) { |
517 | s1 = rx->endp[0]; | |
518 | t1 = rx->sublen; | |
519 | goto getlen; | |
520 | } | |
93a17b20 | 521 | } |
93a17b20 | 522 | } |
748a9306 | 523 | return 0; |
93a17b20 LW |
524 | } |
525 | magic_get(sv,mg); | |
2d8e6c8d GS |
526 | if (!SvPOK(sv) && SvNIOK(sv)) { |
527 | STRLEN n_a; | |
528 | sv_2pv(sv, &n_a); | |
529 | } | |
93a17b20 LW |
530 | if (SvPOK(sv)) |
531 | return SvCUR(sv); | |
532 | return 0; | |
533 | } | |
534 | ||
79072805 | 535 | int |
864dbfa3 | 536 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
537 | { |
538 | register I32 paren; | |
539 | register char *s; | |
540 | register I32 i; | |
d9f97599 | 541 | register REGEXP *rx; |
79072805 LW |
542 | |
543 | switch (*mg->mg_ptr) { | |
748a9306 | 544 | case '\001': /* ^A */ |
3280af22 | 545 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 546 | break; |
49460fe6 NIS |
547 | case '\003': /* ^C */ |
548 | sv_setiv(sv, (IV)PL_minus_c); | |
549 | break; | |
550 | ||
79072805 | 551 | case '\004': /* ^D */ |
aea4f609 | 552 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 553 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 554 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 555 | #endif |
79072805 | 556 | break; |
28f23441 | 557 | case '\005': /* ^E */ |
0a378802 | 558 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 559 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
560 | { |
561 | char msg[256]; | |
727405f8 | 562 | |
0a378802 | 563 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 564 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 565 | } |
727405f8 | 566 | #else |
28f23441 | 567 | #ifdef VMS |
0a378802 JH |
568 | { |
569 | # include <descrip.h> | |
570 | # include <starlet.h> | |
571 | char msg[255]; | |
572 | $DESCRIPTOR(msgdsc,msg); | |
573 | sv_setnv(sv,(NV) vaxc$errno); | |
574 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
575 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
576 | else | |
577 | sv_setpv(sv,""); | |
578 | } | |
28f23441 | 579 | #else |
88e89b8a | 580 | #ifdef OS2 |
0a378802 JH |
581 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
582 | sv_setnv(sv, (NV)errno); | |
583 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
584 | } else { | |
585 | if (errno != errno_isOS2) { | |
586 | int tmp = _syserrno(); | |
587 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
588 | Perl_rc = tmp; | |
589 | } | |
590 | sv_setnv(sv, (NV)Perl_rc); | |
591 | sv_setpv(sv, os2error(Perl_rc)); | |
592 | } | |
88e89b8a | 593 | #else |
22fae026 | 594 | #ifdef WIN32 |
0a378802 JH |
595 | { |
596 | DWORD dwErr = GetLastError(); | |
597 | sv_setnv(sv, (NV)dwErr); | |
598 | if (dwErr) | |
599 | { | |
600 | PerlProc_GetOSError(sv, dwErr); | |
601 | } | |
602 | else | |
603 | sv_setpv(sv, ""); | |
604 | SetLastError(dwErr); | |
605 | } | |
22fae026 | 606 | #else |
0a378802 JH |
607 | sv_setnv(sv, (NV)errno); |
608 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
28f23441 | 609 | #endif |
88e89b8a | 610 | #endif |
22fae026 | 611 | #endif |
cd39f2b6 | 612 | #endif |
0a378802 JH |
613 | SvNOK_on(sv); /* what a wonderful hack! */ |
614 | } | |
615 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
616 | sv_setsv(sv, PL_encoding); | |
617 | break; | |
79072805 | 618 | case '\006': /* ^F */ |
3280af22 | 619 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 620 | break; |
a0d0e21e | 621 | case '\010': /* ^H */ |
3280af22 | 622 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 623 | break; |
9d116dd7 | 624 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
625 | if (PL_inplace) |
626 | sv_setpv(sv, PL_inplace); | |
79072805 | 627 | else |
3280af22 | 628 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 629 | break; |
ac27b0f5 NIS |
630 | case '\017': /* ^O & ^OPEN */ |
631 | if (*(mg->mg_ptr+1) == '\0') | |
632 | sv_setpv(sv, PL_osname); | |
633 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
634 | if (!PL_compiling.cop_io) | |
635 | sv_setsv(sv, &PL_sv_undef); | |
636 | else { | |
637 | sv_setsv(sv, PL_compiling.cop_io); | |
638 | } | |
639 | } | |
28f23441 | 640 | break; |
79072805 | 641 | case '\020': /* ^P */ |
3280af22 | 642 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 643 | break; |
fb73857a | 644 | case '\023': /* ^S */ |
4ffa73a3 | 645 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 646 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 647 | (void)SvOK_off(sv); |
3280af22 | 648 | else if (PL_in_eval) |
6dc8a9e4 | 649 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
650 | else |
651 | sv_setiv(sv, 0); | |
d58bf5aa | 652 | } |
fb73857a | 653 | break; |
79072805 | 654 | case '\024': /* ^T */ |
7c36658b | 655 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 656 | #ifdef BIG_TIME |
7c36658b | 657 | sv_setnv(sv, PL_basetime); |
88e89b8a | 658 | #else |
7c36658b | 659 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 660 | #endif |
7c36658b MS |
661 | } |
662 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
663 | sv_setiv(sv, PL_tainting |
664 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
665 | : 0); | |
7c36658b | 666 | break; |
a05d7ebb JH |
667 | case '\025': /* $^UNICODE */ |
668 | if (strEQ(mg->mg_ptr, "\025NICODE")) | |
669 | sv_setuv(sv, (UV) PL_unicode); | |
fde18df1 JH |
670 | break; |
671 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
672 | if (*(mg->mg_ptr+1) == '\0') |
673 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 674 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
675 | if (PL_compiling.cop_warnings == pWARN_NONE || |
676 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
677 | { |
678 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
679 | } | |
d3a7d8c7 | 680 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
681 | /* Get the bit mask for $warnings::Bits{all}, because |
682 | * it could have been extended by warnings::register */ | |
683 | SV **bits_all; | |
684 | HV *bits=get_hv("warnings::Bits", FALSE); | |
685 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
686 | sv_setsv(sv, *bits_all); | |
687 | } | |
688 | else { | |
689 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
690 | } | |
ac27b0f5 | 691 | } |
4438c4b7 JH |
692 | else { |
693 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 694 | } |
d3a7d8c7 | 695 | SvPOK_only(sv); |
4438c4b7 | 696 | } |
79072805 LW |
697 | break; |
698 | case '1': case '2': case '3': case '4': | |
699 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 700 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
701 | I32 s1, t1; |
702 | ||
a863c7d1 MB |
703 | /* |
704 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
705 | * XXX Does the new way break anything? | |
706 | */ | |
ffc61ed2 | 707 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 708 | getparen: |
eb160463 | 709 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
710 | (s1 = rx->startp[paren]) != -1 && |
711 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 712 | { |
cf93c79d IZ |
713 | i = t1 - s1; |
714 | s = rx->subbeg + s1; | |
01ec43d0 | 715 | if (!rx->subbeg) |
c2e66d9e GS |
716 | break; |
717 | ||
13f57bf8 | 718 | getrx: |
748a9306 | 719 | if (i >= 0) { |
cf93c79d | 720 | sv_setpvn(sv, s, i); |
a30b2f1f | 721 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
722 | SvUTF8_on(sv); |
723 | else | |
724 | SvUTF8_off(sv); | |
e9814ee1 HS |
725 | if (PL_tainting) { |
726 | if (RX_MATCH_TAINTED(rx)) { | |
727 | MAGIC* mg = SvMAGIC(sv); | |
728 | MAGIC* mgt; | |
729 | PL_tainted = 1; | |
730 | SvMAGIC(sv) = mg->mg_moremagic; | |
731 | SvTAINT(sv); | |
732 | if ((mgt = SvMAGIC(sv))) { | |
733 | mg->mg_moremagic = mgt; | |
734 | SvMAGIC(sv) = mg; | |
735 | } | |
736 | } else | |
737 | SvTAINTED_off(sv); | |
738 | } | |
748a9306 LW |
739 | break; |
740 | } | |
79072805 | 741 | } |
79072805 | 742 | } |
3280af22 | 743 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
744 | break; |
745 | case '+': | |
aaa362c4 | 746 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 747 | paren = rx->lastparen; |
a0d0e21e LW |
748 | if (paren) |
749 | goto getparen; | |
79072805 | 750 | } |
3280af22 | 751 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 752 | break; |
a01268b5 JH |
753 | case '\016': /* ^N */ |
754 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
755 | paren = rx->lastcloseparen; | |
756 | if (paren) | |
757 | goto getparen; | |
758 | } | |
759 | sv_setsv(sv,&PL_sv_undef); | |
760 | break; | |
79072805 | 761 | case '`': |
aaa362c4 | 762 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
763 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
764 | i = rx->startp[0]; | |
13f57bf8 | 765 | goto getrx; |
79072805 | 766 | } |
79072805 | 767 | } |
3280af22 | 768 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
769 | break; |
770 | case '\'': | |
aaa362c4 | 771 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
772 | if (rx->subbeg && rx->endp[0] != -1) { |
773 | s = rx->subbeg + rx->endp[0]; | |
774 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 775 | goto getrx; |
79072805 | 776 | } |
79072805 | 777 | } |
3280af22 | 778 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
779 | break; |
780 | case '.': | |
781 | #ifndef lint | |
3280af22 | 782 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 783 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
784 | } |
785 | #endif | |
786 | break; | |
787 | case '?': | |
809a5acc | 788 | { |
809a5acc | 789 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 790 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
791 | LvTARGOFF(sv) = PL_statusvalue; |
792 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 793 | #endif |
809a5acc | 794 | } |
79072805 LW |
795 | break; |
796 | case '^': | |
3280af22 | 797 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
798 | if (s) |
799 | sv_setpv(sv,s); | |
800 | else { | |
3280af22 | 801 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
802 | sv_catpv(sv,"_TOP"); |
803 | } | |
804 | break; | |
805 | case '~': | |
3280af22 | 806 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 807 | if (!s) |
3280af22 | 808 | s = GvENAME(PL_defoutgv); |
79072805 LW |
809 | sv_setpv(sv,s); |
810 | break; | |
811 | #ifndef lint | |
812 | case '=': | |
3280af22 | 813 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
814 | break; |
815 | case '-': | |
3280af22 | 816 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
817 | break; |
818 | case '%': | |
3280af22 | 819 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
820 | break; |
821 | #endif | |
822 | case ':': | |
823 | break; | |
824 | case '/': | |
825 | break; | |
826 | case '[': | |
3280af22 | 827 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
828 | break; |
829 | case '|': | |
3280af22 | 830 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
831 | break; |
832 | case ',': | |
79072805 LW |
833 | break; |
834 | case '\\': | |
b2ce0fda | 835 | if (PL_ors_sv) |
f28098ff | 836 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
837 | break; |
838 | case '#': | |
3280af22 | 839 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
840 | break; |
841 | case '!': | |
a5f75d66 | 842 | #ifdef VMS |
65202027 | 843 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 844 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 845 | #else |
88e89b8a | 846 | { |
847 | int saveerrno = errno; | |
65202027 | 848 | sv_setnv(sv, (NV)errno); |
88e89b8a | 849 | #ifdef OS2 |
ed344e4f IZ |
850 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
851 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 852 | else |
a5f75d66 | 853 | #endif |
2304df62 | 854 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 855 | errno = saveerrno; |
856 | } | |
857 | #endif | |
946ec16e | 858 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
859 | break; |
860 | case '<': | |
3280af22 | 861 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
862 | break; |
863 | case '>': | |
3280af22 | 864 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
865 | break; |
866 | case '(': | |
3280af22 | 867 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 868 | #ifdef HAS_GETGROUPS |
785fb66b | 869 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 870 | #endif |
79072805 LW |
871 | goto add_groups; |
872 | case ')': | |
3280af22 | 873 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 874 | #ifdef HAS_GETGROUPS |
785fb66b | 875 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 876 | #endif |
79072805 | 877 | add_groups: |
79072805 | 878 | #ifdef HAS_GETGROUPS |
79072805 | 879 | { |
a0d0e21e | 880 | Groups_t gary[NGROUPS]; |
79072805 | 881 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 882 | while (--i >= 0) |
785fb66b | 883 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
884 | } |
885 | #endif | |
155aba94 | 886 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
887 | break; |
888 | case '*': | |
889 | break; | |
cd39f2b6 | 890 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
891 | case '0': |
892 | break; | |
cd39f2b6 | 893 | #endif |
79072805 | 894 | } |
a0d0e21e | 895 | return 0; |
79072805 LW |
896 | } |
897 | ||
898 | int | |
864dbfa3 | 899 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
900 | { |
901 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
902 | ||
903 | if (uf && uf->uf_val) | |
24f81a43 | 904 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
905 | return 0; |
906 | } | |
907 | ||
908 | int | |
864dbfa3 | 909 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
910 | { |
911 | register char *s; | |
88e89b8a | 912 | char *ptr; |
5aabfad6 | 913 | STRLEN len, klen; |
1e422769 | 914 | |
a0d0e21e | 915 | s = SvPV(sv,len); |
5aabfad6 | 916 | ptr = MgPV(mg,klen); |
88e89b8a | 917 | my_setenv(ptr, s); |
1e422769 | 918 | |
a0d0e21e LW |
919 | #ifdef DYNAMIC_ENV_FETCH |
920 | /* We just undefd an environment var. Is a replacement */ | |
921 | /* waiting in the wings? */ | |
922 | if (!len) { | |
5aabfad6 | 923 | SV **valp; |
6b88bc9c | 924 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 925 | s = SvPV(*valp, len); |
a0d0e21e LW |
926 | } |
927 | #endif | |
1e422769 | 928 | |
39e571d4 | 929 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
930 | /* And you'll never guess what the dog had */ |
931 | /* in its mouth... */ | |
3280af22 | 932 | if (PL_tainting) { |
1e422769 | 933 | MgTAINTEDDIR_off(mg); |
934 | #ifdef VMS | |
5aabfad6 | 935 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 936 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 937 | Stat_t sbuf; |
1e422769 | 938 | int i = 0, j = 0; |
939 | ||
940 | do { /* DCL$PATH may be a search list */ | |
941 | while (1) { /* as may dev portion of any element */ | |
942 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
943 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
944 | cando_by_name(S_IWUSR,0,elt) ) { | |
945 | MgTAINTEDDIR_on(mg); | |
946 | return 0; | |
947 | } | |
948 | } | |
949 | if ((cp = strchr(elt, ':')) != Nullch) | |
950 | *cp = '\0'; | |
951 | if (my_trnlnm(elt, eltbuf, j++)) | |
952 | elt = eltbuf; | |
953 | else | |
954 | break; | |
955 | } | |
956 | j = 0; | |
957 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
958 | } | |
959 | #endif /* VMS */ | |
5aabfad6 | 960 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 961 | char *strend = s + len; |
463ee0b2 LW |
962 | |
963 | while (s < strend) { | |
96827780 | 964 | char tmpbuf[256]; |
c623ac67 | 965 | Stat_t st; |
5f74f29c | 966 | I32 i; |
96827780 | 967 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 968 | s, strend, ':', &i); |
463ee0b2 | 969 | s++; |
96827780 MB |
970 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
971 | || *tmpbuf != '/' | |
c6ed36e1 | 972 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 973 | MgTAINTEDDIR_on(mg); |
1e422769 | 974 | return 0; |
975 | } | |
463ee0b2 | 976 | } |
79072805 LW |
977 | } |
978 | } | |
39e571d4 | 979 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 980 | |
79072805 LW |
981 | return 0; |
982 | } | |
983 | ||
984 | int | |
864dbfa3 | 985 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 986 | { |
2d8e6c8d GS |
987 | STRLEN n_a; |
988 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
989 | return 0; |
990 | } | |
991 | ||
88e89b8a | 992 | int |
864dbfa3 | 993 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 994 | { |
995 | #if defined(VMS) | |
cea2e8a9 | 996 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 997 | #else |
3280af22 | 998 | if (PL_localizing) { |
fb73857a | 999 | HE* entry; |
2d8e6c8d | 1000 | STRLEN n_a; |
fb73857a | 1001 | magic_clear_all_env(sv,mg); |
1002 | hv_iterinit((HV*)sv); | |
155aba94 | 1003 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1004 | I32 keylen; |
1005 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 1006 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 1007 | } |
1008 | } | |
1009 | #endif | |
1010 | return 0; | |
1011 | } | |
1012 | ||
1013 | int | |
864dbfa3 | 1014 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1015 | { |
ed79a026 | 1016 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 1017 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1018 | #else |
4efc5df6 | 1019 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1020 | PerlEnv_clearenv(); |
4efc5df6 GS |
1021 | # else |
1022 | # ifdef USE_ENVIRON_ARRAY | |
1023 | # if defined(USE_ITHREADS) | |
1024 | /* only the parent thread can clobber the process environment */ | |
1025 | if (PL_curinterp == aTHX) | |
1026 | # endif | |
1027 | { | |
1028 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
1029 | I32 i; |
1030 | ||
3280af22 | 1031 | if (environ == PL_origenviron) |
f2517201 | 1032 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1033 | else |
1034 | for (i = 0; environ[i]; i++) | |
f2517201 | 1035 | safesysfree(environ[i]); |
4efc5df6 | 1036 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1037 | |
66b1d557 | 1038 | environ[0] = Nullch; |
4efc5df6 GS |
1039 | } |
1040 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 JH |
1041 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
1042 | #endif /* VMS || EPC */ | |
3e3baf6d | 1043 | return 0; |
66b1d557 HM |
1044 | } |
1045 | ||
2e34cc90 CL |
1046 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1047 | static int sig_handlers_initted = 0; | |
1048 | #endif | |
7719e241 | 1049 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1050 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1051 | #endif | |
2e34cc90 CL |
1052 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1053 | static int sig_defaulting[SIG_SIZE]; | |
1054 | #endif | |
85b332e2 | 1055 | |
64ca3a65 | 1056 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1057 | #ifdef HAS_SIGPROCMASK |
1058 | static void | |
1059 | restore_sigmask(pTHX_ SV *save_sv) | |
1060 | { | |
1061 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); | |
1062 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); | |
1063 | } | |
1064 | #endif | |
66b1d557 | 1065 | int |
864dbfa3 | 1066 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1067 | { |
1068 | I32 i; | |
2d8e6c8d | 1069 | STRLEN n_a; |
88e89b8a | 1070 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1071 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1072 | if (i) { |
22c35a8c GS |
1073 | if(PL_psig_ptr[i]) |
1074 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1075 | else { |
85b332e2 | 1076 | Sighandler_t sigstate; |
2e34cc90 | 1077 | sigstate = rsignal_state(i); |
23ada85b | 1078 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1079 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1080 | #endif | |
1081 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1082 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1083 | #endif |
88e89b8a | 1084 | /* cache state so we don't fetch it again */ |
ff68c719 | 1085 | if(sigstate == SIG_IGN) |
88e89b8a | 1086 | sv_setpv(sv,"IGNORE"); |
1087 | else | |
3280af22 | 1088 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1089 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1090 | SvTEMP_off(sv); |
1091 | } | |
1092 | } | |
1093 | return 0; | |
1094 | } | |
1095 | int | |
864dbfa3 | 1096 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1097 | { |
2d4fcd5e AJ |
1098 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1099 | * refactoring might be in order. | |
1100 | */ | |
1101 | register char *s; | |
2d8e6c8d | 1102 | STRLEN n_a; |
2d4fcd5e AJ |
1103 | SV* to_dec; |
1104 | s = MgPV(mg,n_a); | |
1105 | if (*s == '_') { | |
1106 | SV** svp; | |
1107 | if (strEQ(s,"__DIE__")) | |
1108 | svp = &PL_diehook; | |
1109 | else if (strEQ(s,"__WARN__")) | |
1110 | svp = &PL_warnhook; | |
1111 | else | |
1112 | Perl_croak(aTHX_ "No such hook: %s", s); | |
1113 | if (*svp) { | |
1114 | to_dec = *svp; | |
1115 | *svp = 0; | |
1116 | SvREFCNT_dec(to_dec); | |
1117 | } | |
1118 | } | |
1119 | else { | |
1120 | I32 i; | |
1121 | /* Are we clearing a signal entry? */ | |
1122 | i = whichsig(s); | |
1123 | if (i) { | |
1124 | #ifdef HAS_SIGPROCMASK | |
1125 | sigset_t set, save; | |
1126 | SV* save_sv; | |
1127 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1128 | sigemptyset(&set); | |
1129 | sigaddset(&set,i); | |
1130 | sigprocmask(SIG_BLOCK, &set, &save); | |
1131 | ENTER; | |
1132 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1133 | SAVEFREESV(save_sv); | |
1134 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1135 | #endif | |
1136 | PERL_ASYNC_CHECK(); | |
1137 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
1138 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1139 | #endif | |
1140 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1141 | sig_defaulting[i] = 1; | |
1142 | (void)rsignal(i, &Perl_csighandler); | |
1143 | #else | |
1144 | (void)rsignal(i, SIG_DFL); | |
1145 | #endif | |
1146 | if(PL_psig_name[i]) { | |
1147 | SvREFCNT_dec(PL_psig_name[i]); | |
1148 | PL_psig_name[i]=0; | |
1149 | } | |
1150 | if(PL_psig_ptr[i]) { | |
1151 | to_dec=PL_psig_ptr[i]; | |
1152 | PL_psig_ptr[i]=0; | |
1153 | LEAVE; | |
1154 | SvREFCNT_dec(to_dec); | |
1155 | } | |
1156 | else | |
1157 | LEAVE; | |
1158 | } | |
88e89b8a | 1159 | } |
1160 | return 0; | |
1161 | } | |
3d37d572 | 1162 | |
0a8e0eff NIS |
1163 | void |
1164 | Perl_raise_signal(pTHX_ int sig) | |
1165 | { | |
1166 | /* Set a flag to say this signal is pending */ | |
1167 | PL_psig_pend[sig]++; | |
1168 | /* And one to say _a_ signal is pending */ | |
1169 | PL_sig_pending = 1; | |
1170 | } | |
1171 | ||
1172 | Signal_t | |
1173 | Perl_csighandler(int sig) | |
1174 | { | |
1018e26f NIS |
1175 | #ifdef PERL_GET_SIG_CONTEXT |
1176 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1177 | #else | |
85b332e2 CL |
1178 | dTHX; |
1179 | #endif | |
23ada85b | 1180 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1181 | (void) rsignal(sig, &Perl_csighandler); |
1182 | if (sig_ignoring[sig]) return; | |
1183 | #endif | |
2e34cc90 | 1184 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1185 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1186 | #ifdef KILL_BY_SIGPRC |
1187 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1188 | #else | |
1189 | exit(1); | |
1190 | #endif | |
1191 | #endif | |
4ffa73a3 JH |
1192 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1193 | /* Call the perl level handler now-- | |
1194 | * with risk we may be in malloc() etc. */ | |
1195 | (*PL_sighandlerp)(sig); | |
1196 | else | |
1197 | Perl_raise_signal(aTHX_ sig); | |
0a8e0eff NIS |
1198 | } |
1199 | ||
2e34cc90 CL |
1200 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1201 | void | |
1202 | Perl_csighandler_init(void) | |
1203 | { | |
1204 | int sig; | |
1205 | if (sig_handlers_initted) return; | |
1206 | ||
1207 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1208 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1209 | dTHX; |
2e34cc90 CL |
1210 | sig_defaulting[sig] = 1; |
1211 | (void) rsignal(sig, &Perl_csighandler); | |
1212 | #endif | |
1213 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1214 | sig_ignoring[sig] = 0; | |
1215 | #endif | |
1216 | } | |
1217 | sig_handlers_initted = 1; | |
1218 | } | |
1219 | #endif | |
1220 | ||
0a8e0eff NIS |
1221 | void |
1222 | Perl_despatch_signals(pTHX) | |
1223 | { | |
1224 | int sig; | |
1225 | PL_sig_pending = 0; | |
1226 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1227 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1228 | PERL_BLOCKSIG_ADD(set, sig); |
1229 | PL_psig_pend[sig] = 0; | |
1230 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1231 | (*PL_sighandlerp)(sig); |
25da4428 | 1232 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1233 | } |
1234 | } | |
1235 | } | |
1236 | ||
85e6fe83 | 1237 | int |
864dbfa3 | 1238 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1239 | { |
1240 | register char *s; | |
1241 | I32 i; | |
b7953727 | 1242 | SV** svp = 0; |
2d4fcd5e AJ |
1243 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1244 | * effects (due to closures). We must make sure that the new disposition | |
1245 | * is in place before it is called. | |
1246 | */ | |
1247 | SV* to_dec = 0; | |
e72dc28c | 1248 | STRLEN len; |
2d4fcd5e AJ |
1249 | #ifdef HAS_SIGPROCMASK |
1250 | sigset_t set, save; | |
1251 | SV* save_sv; | |
1252 | #endif | |
a0d0e21e | 1253 | |
e72dc28c | 1254 | s = MgPV(mg,len); |
748a9306 LW |
1255 | if (*s == '_') { |
1256 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1257 | svp = &PL_diehook; |
748a9306 | 1258 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1259 | svp = &PL_warnhook; |
748a9306 | 1260 | else |
cea2e8a9 | 1261 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1262 | i = 0; |
4633a7c4 | 1263 | if (*svp) { |
2d4fcd5e | 1264 | to_dec = *svp; |
4633a7c4 LW |
1265 | *svp = 0; |
1266 | } | |
748a9306 LW |
1267 | } |
1268 | else { | |
1269 | i = whichsig(s); /* ...no, a brick */ | |
1270 | if (!i) { | |
e476b1b5 | 1271 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1272 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1273 | return 0; |
1274 | } | |
2d4fcd5e AJ |
1275 | #ifdef HAS_SIGPROCMASK |
1276 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1277 | sigemptyset(&set); | |
1278 | sigaddset(&set,i); | |
1279 | sigprocmask(SIG_BLOCK, &set, &save); | |
1280 | ENTER; | |
1281 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1282 | SAVEFREESV(save_sv); | |
1283 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1284 | #endif | |
1285 | PERL_ASYNC_CHECK(); | |
2e34cc90 CL |
1286 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1287 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1288 | #endif | |
23ada85b | 1289 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1290 | sig_ignoring[i] = 0; |
1291 | #endif | |
2e34cc90 | 1292 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
2d4fcd5e | 1293 | sig_defaulting[i] = 0; |
2e34cc90 | 1294 | #endif |
22c35a8c | 1295 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1296 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1297 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1298 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1299 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1300 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1301 | } |
a0d0e21e | 1302 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1303 | if (i) { |
0a8e0eff | 1304 | (void)rsignal(i, &Perl_csighandler); |
2d4fcd5e AJ |
1305 | #ifdef HAS_SIGPROCMASK |
1306 | LEAVE; | |
1307 | #endif | |
1308 | } | |
748a9306 LW |
1309 | else |
1310 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1311 | if(to_dec) |
1312 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1313 | return 0; |
1314 | } | |
e72dc28c | 1315 | s = SvPV_force(sv,len); |
748a9306 | 1316 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1317 | if (i) { |
23ada85b | 1318 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1319 | sig_ignoring[i] = 1; |
1320 | (void)rsignal(i, &Perl_csighandler); | |
1321 | #else | |
ff68c719 | 1322 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1323 | #endif |
2d4fcd5e | 1324 | } |
748a9306 LW |
1325 | } |
1326 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1327 | if (i) | |
2e34cc90 CL |
1328 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1329 | { | |
1330 | sig_defaulting[i] = 1; | |
1331 | (void)rsignal(i, &Perl_csighandler); | |
1332 | } | |
1333 | #else | |
ff68c719 | 1334 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1335 | #endif |
748a9306 | 1336 | } |
79072805 | 1337 | else { |
5aabfad6 | 1338 | /* |
1339 | * We should warn if HINT_STRICT_REFS, but without | |
1340 | * access to a known hint bit in a known OP, we can't | |
1341 | * tell whether HINT_STRICT_REFS is in force or not. | |
1342 | */ | |
46fc3d4c | 1343 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1344 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1345 | if (i) |
0a8e0eff | 1346 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1347 | else |
1348 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1349 | } |
2d4fcd5e AJ |
1350 | #ifdef HAS_SIGPROCMASK |
1351 | if(i) | |
1352 | LEAVE; | |
1353 | #endif | |
1354 | if(to_dec) | |
1355 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1356 | return 0; |
1357 | } | |
64ca3a65 | 1358 | #endif /* !PERL_MICRO */ |
79072805 LW |
1359 | |
1360 | int | |
864dbfa3 | 1361 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1362 | { |
3280af22 | 1363 | PL_sub_generation++; |
463ee0b2 LW |
1364 | return 0; |
1365 | } | |
1366 | ||
1367 | int | |
864dbfa3 | 1368 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1369 | { |
a0d0e21e | 1370 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1371 | PL_amagic_generation++; |
463ee0b2 | 1372 | |
a0d0e21e LW |
1373 | return 0; |
1374 | } | |
463ee0b2 | 1375 | |
946ec16e | 1376 | int |
864dbfa3 | 1377 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1378 | { |
1379 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1380 | I32 i = 0; |
7719e241 | 1381 | |
6ff81951 | 1382 | if (hv) { |
497b47a8 JH |
1383 | (void) hv_iterinit(hv); |
1384 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1385 | i = HvKEYS(hv); | |
1386 | else { | |
1387 | while (hv_iternext(hv)) | |
1388 | i++; | |
1389 | } | |
6ff81951 GS |
1390 | } |
1391 | ||
1392 | sv_setiv(sv, (IV)i); | |
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | int | |
864dbfa3 | 1397 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1398 | { |
1399 | if (LvTARG(sv)) { | |
1400 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1401 | } |
1402 | return 0; | |
ac27b0f5 | 1403 | } |
946ec16e | 1404 | |
e336de0d | 1405 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1406 | STATIC int |
cea2e8a9 | 1407 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1408 | { |
1409 | dSP; | |
463ee0b2 | 1410 | |
924508f0 GS |
1411 | PUSHMARK(SP); |
1412 | EXTEND(SP, n); | |
33c27489 | 1413 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1414 | if (n > 1) { |
93965878 | 1415 | if (mg->mg_ptr) { |
565764a8 | 1416 | if (mg->mg_len >= 0) |
79cb57f6 | 1417 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1418 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1419 | PUSHs((SV*)mg->mg_ptr); |
1420 | } | |
14befaf4 | 1421 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1422 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1423 | } |
1424 | } | |
1425 | if (n > 2) { | |
1426 | PUSHs(val); | |
88e89b8a | 1427 | } |
463ee0b2 LW |
1428 | PUTBACK; |
1429 | ||
864dbfa3 | 1430 | return call_method(meth, flags); |
946ec16e | 1431 | } |
1432 | ||
76e3520e | 1433 | STATIC int |
cea2e8a9 | 1434 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1435 | { |
1436 | dSP; | |
463ee0b2 | 1437 | |
a0d0e21e LW |
1438 | ENTER; |
1439 | SAVETMPS; | |
e788e7d3 | 1440 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1441 | |
33c27489 | 1442 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1443 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1444 | } |
463ee0b2 | 1445 | |
d3acc0f7 | 1446 | POPSTACK; |
a0d0e21e LW |
1447 | FREETMPS; |
1448 | LEAVE; | |
1449 | return 0; | |
1450 | } | |
463ee0b2 | 1451 | |
a0d0e21e | 1452 | int |
864dbfa3 | 1453 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1454 | { |
1455 | magic_methpack(sv,mg,"FETCH"); | |
1456 | if (mg->mg_ptr) | |
1457 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1458 | return 0; |
1459 | } | |
1460 | ||
1461 | int | |
864dbfa3 | 1462 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1463 | { |
1464 | dSP; | |
a60c0954 | 1465 | ENTER; |
e788e7d3 | 1466 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1467 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1468 | POPSTACK; |
a60c0954 | 1469 | LEAVE; |
463ee0b2 LW |
1470 | return 0; |
1471 | } | |
1472 | ||
1473 | int | |
864dbfa3 | 1474 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1475 | { |
a0d0e21e LW |
1476 | return magic_methpack(sv,mg,"DELETE"); |
1477 | } | |
463ee0b2 | 1478 | |
93965878 NIS |
1479 | |
1480 | U32 | |
864dbfa3 | 1481 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1482 | { |
e336de0d | 1483 | dSP; |
93965878 NIS |
1484 | U32 retval = 0; |
1485 | ||
1486 | ENTER; | |
1487 | SAVETMPS; | |
e788e7d3 | 1488 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1489 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1490 | sv = *PL_stack_sp--; |
a60c0954 | 1491 | retval = (U32) SvIV(sv)-1; |
93965878 | 1492 | } |
d3acc0f7 | 1493 | POPSTACK; |
93965878 NIS |
1494 | FREETMPS; |
1495 | LEAVE; | |
1496 | return retval; | |
1497 | } | |
1498 | ||
cea2e8a9 GS |
1499 | int |
1500 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1501 | { |
1502 | dSP; | |
463ee0b2 | 1503 | |
e336de0d | 1504 | ENTER; |
e788e7d3 | 1505 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1506 | PUSHMARK(SP); |
33c27489 | 1507 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1508 | PUTBACK; |
864dbfa3 | 1509 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1510 | POPSTACK; |
a60c0954 | 1511 | LEAVE; |
463ee0b2 LW |
1512 | return 0; |
1513 | } | |
1514 | ||
1515 | int | |
864dbfa3 | 1516 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1517 | { |
463ee0b2 | 1518 | dSP; |
dff6d3cd | 1519 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1520 | |
1521 | ENTER; | |
a0d0e21e | 1522 | SAVETMPS; |
e788e7d3 | 1523 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1524 | PUSHMARK(SP); |
1525 | EXTEND(SP, 2); | |
33c27489 | 1526 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1527 | if (SvOK(key)) |
1528 | PUSHs(key); | |
1529 | PUTBACK; | |
1530 | ||
864dbfa3 | 1531 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1532 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1533 | |
d3acc0f7 | 1534 | POPSTACK; |
a0d0e21e LW |
1535 | FREETMPS; |
1536 | LEAVE; | |
79072805 LW |
1537 | return 0; |
1538 | } | |
1539 | ||
1540 | int | |
864dbfa3 | 1541 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1542 | { |
1543 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1544 | } |
a0d0e21e LW |
1545 | |
1546 | int | |
864dbfa3 | 1547 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1548 | { |
1549 | OP *o; | |
1550 | I32 i; | |
1551 | GV* gv; | |
1552 | SV** svp; | |
2d8e6c8d | 1553 | STRLEN n_a; |
79072805 | 1554 | |
3280af22 | 1555 | gv = PL_DBline; |
79072805 | 1556 | i = SvTRUE(sv); |
188ea221 | 1557 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1558 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 DM |
1559 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1560 | /* set or clear breakpoint in the relevant control op */ | |
1561 | if (i) | |
1562 | o->op_flags |= OPf_SPECIAL; | |
1563 | else | |
1564 | o->op_flags &= ~OPf_SPECIAL; | |
1565 | } | |
79072805 LW |
1566 | return 0; |
1567 | } | |
1568 | ||
1569 | int | |
864dbfa3 | 1570 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1571 | { |
3280af22 | 1572 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1573 | return 0; |
1574 | } | |
1575 | ||
1576 | int | |
864dbfa3 | 1577 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1578 | { |
3280af22 | 1579 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1580 | return 0; |
1581 | } | |
1582 | ||
1583 | int | |
864dbfa3 | 1584 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1585 | { |
1586 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1587 | |
a0d0e21e | 1588 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1589 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1590 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1591 | I32 i = mg->mg_len; |
7e2040f0 | 1592 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1593 | sv_pos_b2u(lsv, &i); |
1594 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1595 | return 0; |
1596 | } | |
1597 | } | |
1598 | (void)SvOK_off(sv); | |
1599 | return 0; | |
1600 | } | |
1601 | ||
1602 | int | |
864dbfa3 | 1603 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1604 | { |
1605 | SV* lsv = LvTARG(sv); | |
1606 | SSize_t pos; | |
1607 | STRLEN len; | |
c00206c8 | 1608 | STRLEN ulen = 0; |
a0d0e21e LW |
1609 | |
1610 | mg = 0; | |
ac27b0f5 | 1611 | |
a0d0e21e | 1612 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1613 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1614 | if (!mg) { |
1615 | if (!SvOK(sv)) | |
1616 | return 0; | |
14befaf4 DM |
1617 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1618 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1619 | } |
1620 | else if (!SvOK(sv)) { | |
565764a8 | 1621 | mg->mg_len = -1; |
a0d0e21e LW |
1622 | return 0; |
1623 | } | |
1624 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1625 | ||
c485e607 | 1626 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1627 | |
7e2040f0 | 1628 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1629 | ulen = sv_len_utf8(lsv); |
1630 | if (ulen) | |
1631 | len = ulen; | |
a0ed51b3 LW |
1632 | } |
1633 | ||
a0d0e21e LW |
1634 | if (pos < 0) { |
1635 | pos += len; | |
1636 | if (pos < 0) | |
1637 | pos = 0; | |
1638 | } | |
eb160463 | 1639 | else if (pos > (SSize_t)len) |
a0d0e21e | 1640 | pos = len; |
a0ed51b3 LW |
1641 | |
1642 | if (ulen) { | |
1643 | I32 p = pos; | |
1644 | sv_pos_u2b(lsv, &p, 0); | |
1645 | pos = p; | |
1646 | } | |
727405f8 | 1647 | |
565764a8 | 1648 | mg->mg_len = pos; |
71be2cbc | 1649 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1650 | |
79072805 LW |
1651 | return 0; |
1652 | } | |
1653 | ||
1654 | int | |
864dbfa3 | 1655 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1656 | { |
8646b087 | 1657 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1658 | SvFAKE_off(sv); | |
946ec16e | 1659 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1660 | SvFAKE_on(sv); |
1661 | } | |
1662 | else | |
946ec16e | 1663 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1664 | return 0; |
1665 | } | |
1666 | ||
1667 | int | |
864dbfa3 | 1668 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1669 | { |
1670 | register char *s; | |
1671 | GV* gv; | |
2d8e6c8d | 1672 | STRLEN n_a; |
79072805 LW |
1673 | |
1674 | if (!SvOK(sv)) | |
1675 | return 0; | |
2d8e6c8d | 1676 | s = SvPV(sv, n_a); |
79072805 LW |
1677 | if (*s == '*' && s[1]) |
1678 | s++; | |
85e6fe83 | 1679 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1680 | if (sv == (SV*)gv) |
1681 | return 0; | |
1682 | if (GvGP(sv)) | |
88e89b8a | 1683 | gp_free((GV*)sv); |
79072805 | 1684 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1685 | return 0; |
1686 | } | |
1687 | ||
1688 | int | |
864dbfa3 | 1689 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1690 | { |
1691 | STRLEN len; | |
1692 | SV *lsv = LvTARG(sv); | |
1693 | char *tmps = SvPV(lsv,len); | |
1694 | I32 offs = LvTARGOFF(sv); | |
1695 | I32 rem = LvTARGLEN(sv); | |
1696 | ||
9aa983d2 JH |
1697 | if (SvUTF8(lsv)) |
1698 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1699 | if (offs > (I32)len) |
6ff81951 | 1700 | offs = len; |
eb160463 | 1701 | if (rem + offs > (I32)len) |
6ff81951 GS |
1702 | rem = len - offs; |
1703 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1704 | if (SvUTF8(lsv)) |
2ef4b674 | 1705 | SvUTF8_on(sv); |
6ff81951 GS |
1706 | return 0; |
1707 | } | |
1708 | ||
1709 | int | |
864dbfa3 | 1710 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1711 | { |
9aa983d2 JH |
1712 | STRLEN len; |
1713 | char *tmps = SvPV(sv, len); | |
1714 | SV *lsv = LvTARG(sv); | |
1715 | I32 lvoff = LvTARGOFF(sv); | |
1716 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1717 | |
1aa99e6b | 1718 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1719 | sv_utf8_upgrade(lsv); |
1720 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1721 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1722 | SvUTF8_on(lsv); | |
1723 | } | |
9bf12eaf | 1724 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1725 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1726 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1727 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1728 | Safefree(tmps); | |
1aa99e6b IH |
1729 | } |
1730 | else | |
9aa983d2 | 1731 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1732 | |
79072805 LW |
1733 | return 0; |
1734 | } | |
1735 | ||
1736 | int | |
864dbfa3 | 1737 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1738 | { |
565764a8 | 1739 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1740 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1741 | return 0; |
1742 | } | |
1743 | ||
1744 | int | |
864dbfa3 | 1745 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1746 | { |
3280af22 NIS |
1747 | if (PL_localizing) { |
1748 | if (PL_localizing == 1) | |
565764a8 | 1749 | mg->mg_len <<= 1; |
748a9306 | 1750 | else |
565764a8 | 1751 | mg->mg_len >>= 1; |
a0d0e21e | 1752 | } |
3280af22 | 1753 | else if (PL_tainted) |
565764a8 | 1754 | mg->mg_len |= 1; |
748a9306 | 1755 | else |
565764a8 | 1756 | mg->mg_len &= ~1; |
463ee0b2 LW |
1757 | return 0; |
1758 | } | |
1759 | ||
1760 | int | |
864dbfa3 | 1761 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1762 | { |
1763 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1764 | |
1765 | if (!lsv) { | |
155aba94 | 1766 | (void)SvOK_off(sv); |
6ff81951 GS |
1767 | return 0; |
1768 | } | |
6ff81951 | 1769 | |
81e118e0 | 1770 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1771 | return 0; |
1772 | } | |
1773 | ||
1774 | int | |
864dbfa3 | 1775 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1776 | { |
1777 | do_vecset(sv); /* XXX slurp this routine */ | |
1778 | return 0; | |
1779 | } | |
1780 | ||
1781 | int | |
864dbfa3 | 1782 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1783 | { |
71be2cbc | 1784 | SV *targ = Nullsv; |
5f05dabc | 1785 | if (LvTARGLEN(sv)) { |
68dc0745 | 1786 | if (mg->mg_obj) { |
74e13ce4 | 1787 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1788 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1789 | if (he) | |
1790 | targ = HeVAL(he); | |
68dc0745 | 1791 | } |
1792 | else { | |
3c78fafa | 1793 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1794 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1795 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1796 | } | |
3280af22 | 1797 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1798 | /* somebody else defined it for us */ |
1799 | SvREFCNT_dec(LvTARG(sv)); | |
1800 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1801 | LvTARGLEN(sv) = 0; | |
1802 | SvREFCNT_dec(mg->mg_obj); | |
1803 | mg->mg_obj = Nullsv; | |
1804 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1805 | } | |
5f05dabc | 1806 | } |
71be2cbc | 1807 | else |
1808 | targ = LvTARG(sv); | |
3280af22 | 1809 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1810 | return 0; |
1811 | } | |
1812 | ||
1813 | int | |
864dbfa3 | 1814 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1815 | { |
1816 | if (LvTARGLEN(sv)) | |
68dc0745 | 1817 | vivify_defelem(sv); |
1818 | if (LvTARG(sv)) { | |
5f05dabc | 1819 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1820 | SvSETMAGIC(LvTARG(sv)); |
1821 | } | |
5f05dabc | 1822 | return 0; |
1823 | } | |
1824 | ||
71be2cbc | 1825 | void |
864dbfa3 | 1826 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1827 | { |
74e13ce4 GS |
1828 | MAGIC *mg; |
1829 | SV *value = Nullsv; | |
71be2cbc | 1830 | |
14befaf4 | 1831 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1832 | return; |
68dc0745 | 1833 | if (mg->mg_obj) { |
74e13ce4 | 1834 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1835 | STRLEN n_a; |
6d822dc4 MS |
1836 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1837 | if (he) | |
1838 | value = HeVAL(he); | |
3280af22 | 1839 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1840 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1841 | } |
68dc0745 | 1842 | else { |
1843 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1844 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1845 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1846 | else { | |
1847 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1848 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1849 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1850 | } |
1851 | } | |
3e3baf6d | 1852 | (void)SvREFCNT_inc(value); |
68dc0745 | 1853 | SvREFCNT_dec(LvTARG(sv)); |
1854 | LvTARG(sv) = value; | |
71be2cbc | 1855 | LvTARGLEN(sv) = 0; |
68dc0745 | 1856 | SvREFCNT_dec(mg->mg_obj); |
1857 | mg->mg_obj = Nullsv; | |
1858 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1859 | } |
1860 | ||
1861 | int | |
864dbfa3 | 1862 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1863 | { |
1864 | AV *av = (AV*)mg->mg_obj; | |
1865 | SV **svp = AvARRAY(av); | |
1866 | I32 i = AvFILLp(av); | |
1867 | while (i >= 0) { | |
1868 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1869 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1870 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1871 | /* XXX Should we check that it hasn't changed? */ |
1872 | SvRV(svp[i]) = 0; | |
155aba94 | 1873 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1874 | SvWEAKREF_off(svp[i]); |
1875 | svp[i] = &PL_sv_undef; | |
1876 | } | |
1877 | i--; | |
1878 | } | |
1879 | return 0; | |
1880 | } | |
1881 | ||
1882 | int | |
864dbfa3 | 1883 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1884 | { |
565764a8 | 1885 | mg->mg_len = -1; |
c6496cc7 | 1886 | SvSCREAM_off(sv); |
93a17b20 LW |
1887 | return 0; |
1888 | } | |
1889 | ||
1890 | int | |
864dbfa3 | 1891 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1892 | { |
14befaf4 | 1893 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1894 | SvVALID_off(sv); |
1895 | return 0; | |
1896 | } | |
1897 | ||
1898 | int | |
864dbfa3 | 1899 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1900 | { |
14befaf4 | 1901 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1902 | SvCOMPILED_off(sv); |
1903 | return 0; | |
1904 | } | |
1905 | ||
1906 | int | |
864dbfa3 | 1907 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1908 | { |
1909 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1910 | ||
1911 | if (uf && uf->uf_set) | |
24f81a43 | 1912 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1913 | return 0; |
1914 | } | |
1915 | ||
c277df42 | 1916 | int |
faf82a0b AE |
1917 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
1918 | { | |
1919 | sv_unmagic(sv, PERL_MAGIC_qr); | |
1920 | return 0; | |
1921 | } | |
1922 | ||
1923 | int | |
864dbfa3 | 1924 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1925 | { |
1926 | regexp *re = (regexp *)mg->mg_obj; | |
1927 | ReREFCNT_dec(re); | |
1928 | return 0; | |
1929 | } | |
1930 | ||
7a4c00b4 | 1931 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1932 | int |
864dbfa3 | 1933 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1934 | { |
1935 | /* | |
838b5b74 | 1936 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1937 | * and vanished with a faint plop. |
1938 | */ | |
7a4c00b4 | 1939 | if (mg->mg_ptr) { |
1940 | Safefree(mg->mg_ptr); | |
1941 | mg->mg_ptr = NULL; | |
565764a8 | 1942 | mg->mg_len = -1; |
7a4c00b4 | 1943 | } |
bbce6d69 | 1944 | return 0; |
1945 | } | |
7a4c00b4 | 1946 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1947 | |
7e8c5dac HS |
1948 | /* Just clear the UTF-8 cache data. */ |
1949 | int | |
1950 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
1951 | { | |
1952 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ | |
1953 | mg->mg_ptr = 0; | |
1954 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
1955 | return 0; | |
1956 | } | |
1957 | ||
bbce6d69 | 1958 | int |
864dbfa3 | 1959 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1960 | { |
1961 | register char *s; | |
1962 | I32 i; | |
8990e307 | 1963 | STRLEN len; |
79072805 | 1964 | switch (*mg->mg_ptr) { |
748a9306 | 1965 | case '\001': /* ^A */ |
3280af22 | 1966 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1967 | break; |
49460fe6 | 1968 | case '\003': /* ^C */ |
eb160463 | 1969 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
1970 | break; |
1971 | ||
79072805 | 1972 | case '\004': /* ^D */ |
aea4f609 | 1973 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1974 | DEBUG_x(dump_all()); |
1975 | break; | |
28f23441 | 1976 | case '\005': /* ^E */ |
d0063567 | 1977 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 1978 | #ifdef MACOS_TRADITIONAL |
d0063567 | 1979 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1980 | #else |
cd39f2b6 | 1981 | # ifdef VMS |
d0063567 | 1982 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 1983 | # else |
cd39f2b6 | 1984 | # ifdef WIN32 |
d0063567 | 1985 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 1986 | # else |
9fed8b87 | 1987 | # ifdef OS2 |
d0063567 | 1988 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 1989 | # else |
d0063567 DK |
1990 | /* will anyone ever use this? */ |
1991 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1992 | # endif |
048c1ddf IZ |
1993 | # endif |
1994 | # endif | |
22fae026 | 1995 | #endif |
d0063567 DK |
1996 | } |
1997 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
1998 | if (PL_encoding) | |
1999 | SvREFCNT_dec(PL_encoding); | |
2000 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2001 | PL_encoding = newSVsv(sv); | |
2002 | } | |
2003 | else { | |
2004 | PL_encoding = Nullsv; | |
2005 | } | |
2006 | } | |
2007 | break; | |
79072805 | 2008 | case '\006': /* ^F */ |
3280af22 | 2009 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2010 | break; |
a0d0e21e | 2011 | case '\010': /* ^H */ |
3280af22 | 2012 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2013 | break; |
9d116dd7 | 2014 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2015 | if (PL_inplace) |
2016 | Safefree(PL_inplace); | |
79072805 | 2017 | if (SvOK(sv)) |
2d8e6c8d | 2018 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 2019 | else |
3280af22 | 2020 | PL_inplace = Nullch; |
79072805 | 2021 | break; |
28f23441 | 2022 | case '\017': /* ^O */ |
ac27b0f5 NIS |
2023 | if (*(mg->mg_ptr+1) == '\0') { |
2024 | if (PL_osname) | |
2025 | Safefree(PL_osname); | |
2026 | if (SvOK(sv)) | |
2027 | PL_osname = savepv(SvPV(sv,len)); | |
2028 | else | |
2029 | PL_osname = Nullch; | |
2030 | } | |
2031 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2032 | if (!PL_compiling.cop_io) | |
2033 | PL_compiling.cop_io = newSVsv(sv); | |
2034 | else | |
2035 | sv_setsv(PL_compiling.cop_io,sv); | |
2036 | } | |
28f23441 | 2037 | break; |
79072805 | 2038 | case '\020': /* ^P */ |
3280af22 | 2039 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
2040 | if (PL_perldb && !PL_DBsingle) |
2041 | init_debugger(); | |
79072805 LW |
2042 | break; |
2043 | case '\024': /* ^T */ | |
88e89b8a | 2044 | #ifdef BIG_TIME |
6b88bc9c | 2045 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2046 | #else |
3280af22 | 2047 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2048 | #endif |
79072805 | 2049 | break; |
fde18df1 | 2050 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2051 | if (*(mg->mg_ptr+1) == '\0') { |
2052 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2053 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2054 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2055 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2056 | } |
599cee73 | 2057 | } |
0a378802 | 2058 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2059 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2060 | if (!SvPOK(sv) && PL_localizing) { |
2061 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2062 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2063 | break; |
2064 | } | |
f4fc7782 | 2065 | { |
b5477537 | 2066 | STRLEN len, i; |
d3a7d8c7 | 2067 | int accumulate = 0 ; |
f4fc7782 | 2068 | int any_fatals = 0 ; |
d3a7d8c7 | 2069 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
2070 | for (i = 0 ; i < len ; ++i) { |
2071 | accumulate |= ptr[i] ; | |
2072 | any_fatals |= (ptr[i] & 0xAA) ; | |
2073 | } | |
d3a7d8c7 GS |
2074 | if (!accumulate) |
2075 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2076 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2077 | PL_compiling.cop_warnings = pWARN_ALL; | |
2078 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2079 | } |
d3a7d8c7 GS |
2080 | else { |
2081 | if (specialWARN(PL_compiling.cop_warnings)) | |
2082 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2083 | else | |
2084 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2085 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2086 | PL_dowarn |= G_WARN_ONCE ; | |
2087 | } | |
f4fc7782 | 2088 | |
d3a7d8c7 | 2089 | } |
4438c4b7 | 2090 | } |
971a9dd3 | 2091 | } |
79072805 LW |
2092 | break; |
2093 | case '.': | |
3280af22 NIS |
2094 | if (PL_localizing) { |
2095 | if (PL_localizing == 1) | |
7766f137 | 2096 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2097 | } |
3280af22 | 2098 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2099 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2100 | break; |
2101 | case '^': | |
3280af22 | 2102 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2103 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2104 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2105 | break; |
2106 | case '~': | |
3280af22 | 2107 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2108 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2109 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2110 | break; |
2111 | case '=': | |
632db599 | 2112 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2113 | break; |
2114 | case '-': | |
632db599 | 2115 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2116 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2117 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2118 | break; |
2119 | case '%': | |
632db599 | 2120 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2121 | break; |
2122 | case '|': | |
4b65379b | 2123 | { |
3280af22 | 2124 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2125 | if(!io) |
2126 | break; | |
4b65379b CS |
2127 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2128 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2129 | else { | |
2130 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2131 | PerlIO *ofp = IoOFP(io); | |
2132 | if (ofp) | |
2133 | (void)PerlIO_flush(ofp); | |
2134 | IoFLAGS(io) |= IOf_FLUSH; | |
2135 | } | |
2136 | } | |
79072805 LW |
2137 | } |
2138 | break; | |
2139 | case '*': | |
463ee0b2 | 2140 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 2141 | PL_multiline = (i != 0); |
79072805 LW |
2142 | break; |
2143 | case '/': | |
3280af22 | 2144 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2145 | PL_rs = newSVsv(sv); |
79072805 LW |
2146 | break; |
2147 | case '\\': | |
7889fe52 NIS |
2148 | if (PL_ors_sv) |
2149 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2150 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2151 | PL_ors_sv = newSVsv(sv); |
009c130f | 2152 | } |
e3c19b7b | 2153 | else { |
7889fe52 | 2154 | PL_ors_sv = Nullsv; |
e3c19b7b | 2155 | } |
79072805 LW |
2156 | break; |
2157 | case ',': | |
7889fe52 NIS |
2158 | if (PL_ofs_sv) |
2159 | SvREFCNT_dec(PL_ofs_sv); | |
2160 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2161 | PL_ofs_sv = newSVsv(sv); | |
2162 | } | |
2163 | else { | |
2164 | PL_ofs_sv = Nullsv; | |
2165 | } | |
79072805 LW |
2166 | break; |
2167 | case '#': | |
3280af22 NIS |
2168 | if (PL_ofmt) |
2169 | Safefree(PL_ofmt); | |
2d8e6c8d | 2170 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2171 | break; |
2172 | case '[': | |
3280af22 | 2173 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2174 | break; |
2175 | case '?': | |
ff0cee69 | 2176 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2177 | if (PL_localizing == 2) { |
2178 | PL_statusvalue = LvTARGOFF(sv); | |
2179 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2180 | } |
2181 | else | |
2182 | #endif | |
2183 | #ifdef VMSISH_STATUS | |
2184 | if (VMSISH_STATUS) | |
2185 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2186 | else | |
2187 | #endif | |
2188 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2189 | break; |
2190 | case '!': | |
93189314 JH |
2191 | { |
2192 | #ifdef VMS | |
2193 | # define PERL_VMS_BANG vaxc$errno | |
2194 | #else | |
2195 | # define PERL_VMS_BANG 0 | |
2196 | #endif | |
91487cfc | 2197 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2198 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2199 | } | |
79072805 LW |
2200 | break; |
2201 | case '<': | |
3280af22 NIS |
2202 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2203 | if (PL_delaymagic) { | |
2204 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2205 | break; /* don't do magic till later */ |
2206 | } | |
2207 | #ifdef HAS_SETRUID | |
b28d0864 | 2208 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2209 | #else |
2210 | #ifdef HAS_SETREUID | |
3280af22 | 2211 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2212 | #else |
85e6fe83 | 2213 | #ifdef HAS_SETRESUID |
b28d0864 | 2214 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2215 | #else |
b28d0864 NIS |
2216 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2217 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2218 | else { |
d8eceb89 | 2219 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2220 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2221 | } |
79072805 LW |
2222 | #endif |
2223 | #endif | |
85e6fe83 | 2224 | #endif |
d8eceb89 | 2225 | PL_uid = PerlProc_getuid(); |
3280af22 | 2226 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2227 | break; |
2228 | case '>': | |
3280af22 NIS |
2229 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2230 | if (PL_delaymagic) { | |
2231 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2232 | break; /* don't do magic till later */ |
2233 | } | |
2234 | #ifdef HAS_SETEUID | |
3280af22 | 2235 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2236 | #else |
2237 | #ifdef HAS_SETREUID | |
b28d0864 | 2238 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2239 | #else |
2240 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2241 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2242 | #else |
b28d0864 NIS |
2243 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2244 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2245 | else { |
e8ee3774 | 2246 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2247 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2248 | } |
79072805 LW |
2249 | #endif |
2250 | #endif | |
85e6fe83 | 2251 | #endif |
d8eceb89 | 2252 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2253 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2254 | break; |
2255 | case '(': | |
3280af22 NIS |
2256 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2257 | if (PL_delaymagic) { | |
2258 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2259 | break; /* don't do magic till later */ |
2260 | } | |
2261 | #ifdef HAS_SETRGID | |
b28d0864 | 2262 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2263 | #else |
2264 | #ifdef HAS_SETREGID | |
3280af22 | 2265 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2266 | #else |
2267 | #ifdef HAS_SETRESGID | |
b28d0864 | 2268 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2269 | #else |
b28d0864 NIS |
2270 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2271 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2272 | else { |
d8eceb89 | 2273 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2274 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2275 | } |
79072805 LW |
2276 | #endif |
2277 | #endif | |
85e6fe83 | 2278 | #endif |
d8eceb89 | 2279 | PL_gid = PerlProc_getgid(); |
3280af22 | 2280 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2281 | break; |
2282 | case ')': | |
5cd24f17 | 2283 | #ifdef HAS_SETGROUPS |
2284 | { | |
2d8e6c8d | 2285 | char *p = SvPV(sv, len); |
5cd24f17 | 2286 | Groups_t gary[NGROUPS]; |
2287 | ||
5cd24f17 | 2288 | while (isSPACE(*p)) |
2289 | ++p; | |
2d4389e4 | 2290 | PL_egid = Atol(p); |
5cd24f17 | 2291 | for (i = 0; i < NGROUPS; ++i) { |
2292 | while (*p && !isSPACE(*p)) | |
2293 | ++p; | |
2294 | while (isSPACE(*p)) | |
2295 | ++p; | |
2296 | if (!*p) | |
2297 | break; | |
2d4389e4 | 2298 | gary[i] = Atol(p); |
5cd24f17 | 2299 | } |
8cc95fdb | 2300 | if (i) |
2301 | (void)setgroups(i, gary); | |
5cd24f17 | 2302 | } |
2303 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2304 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2305 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2306 | if (PL_delaymagic) { |
2307 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2308 | break; /* don't do magic till later */ |
2309 | } | |
2310 | #ifdef HAS_SETEGID | |
3280af22 | 2311 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2312 | #else |
2313 | #ifdef HAS_SETREGID | |
b28d0864 | 2314 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2315 | #else |
2316 | #ifdef HAS_SETRESGID | |
b28d0864 | 2317 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2318 | #else |
b28d0864 NIS |
2319 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2320 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2321 | else { |
d8eceb89 | 2322 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2323 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2324 | } |
79072805 LW |
2325 | #endif |
2326 | #endif | |
85e6fe83 | 2327 | #endif |
d8eceb89 | 2328 | PL_egid = PerlProc_getegid(); |
3280af22 | 2329 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2330 | break; |
2331 | case ':': | |
2d8e6c8d | 2332 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2333 | break; |
cd39f2b6 | 2334 | #ifndef MACOS_TRADITIONAL |
79072805 | 2335 | case '0': |
e2975953 | 2336 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2337 | #ifdef HAS_SETPROCTITLE |
2338 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2339 | * show a string from the process struct and provide | |
2340 | * the setproctitle() routine to manipulate that. */ | |
2341 | { | |
2342 | s = SvPV(sv, len); | |
98b76f99 | 2343 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2344 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2345 | * but not the "(perl) suffix from the ps(1) |
2346 | * output, because that's what ps(1) shows if the | |
2347 | * argv[] is modified. */ | |
6f2ad931 | 2348 | setproctitle("-%s", s); |
9aad2c0e | 2349 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2350 | /* This doesn't really work if you assume that |
2351 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2352 | * because in ps(1) output the result will be like | |
2353 | * sprintf("perl: %s (perl)", s) | |
2354 | * I guess this is a security feature: | |
2355 | * one (a user process) cannot get rid of the original name. | |
2356 | * --jhi */ | |
2357 | setproctitle("%s", s); | |
2358 | # endif | |
2359 | } | |
2360 | #endif | |
17aa7f3d JH |
2361 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2362 | { | |
2363 | union pstun un; | |
2364 | s = SvPV(sv, len); | |
2365 | un.pst_command = s; | |
2366 | pstat(PSTAT_SETCMD, un, len, 0, 0); | |
2367 | } | |
2368 | #endif | |
3280af22 NIS |
2369 | if (!PL_origalen) { |
2370 | s = PL_origargv[0]; | |
79072805 LW |
2371 | s += strlen(s); |
2372 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2373 | for (i = 1; i < PL_origargc; i++) { |
2374 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2375 | #ifdef OS2 |
6b88bc9c | 2376 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2377 | #endif |
fb73857a | 2378 | ) |
379c4362 GS |
2379 | { |
2380 | ++s; | |
2381 | s += strlen(s); /* this one is ok too */ | |
2382 | } | |
fb73857a | 2383 | else |
2384 | break; | |
79072805 | 2385 | } |
bbce6d69 | 2386 | /* can grab env area too? */ |
4efc5df6 GS |
2387 | if (PL_origenviron |
2388 | #ifdef USE_ITHREADS | |
2389 | && PL_curinterp == aTHX | |
2390 | #endif | |
2391 | && (PL_origenviron[0] == s + 1)) | |
2392 | { | |
66b1d557 | 2393 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2394 | /* force copy of environment */ |
3280af22 | 2395 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2396 | if (PL_origenviron[i] == s + 1) { |
2397 | ++s; | |
2398 | s += strlen(s); | |
2399 | } | |
fb73857a | 2400 | else |
2401 | break; | |
79072805 | 2402 | } |
3280af22 | 2403 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2404 | } |
a0d0e21e | 2405 | s = SvPV_force(sv,len); |
8990e307 | 2406 | i = len; |
eb160463 | 2407 | if (i >= (I32)PL_origalen) { |
3280af22 | 2408 | i = PL_origalen; |
fb73857a | 2409 | /* don't allow system to limit $0 seen by script */ |
2410 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2411 | Copy(s, PL_origargv[0], i, char); |
2412 | s = PL_origargv[0]+i; | |
fb73857a | 2413 | *s = '\0'; |
79072805 LW |
2414 | } |
2415 | else { | |
3280af22 NIS |
2416 | Copy(s, PL_origargv[0], i, char); |
2417 | s = PL_origargv[0]+i; | |
79072805 | 2418 | *s++ = '\0'; |
eb160463 | 2419 | while (++i < (I32)PL_origalen) |
f1c3b2ef | 2420 | *s++ = '\0'; |
3280af22 NIS |
2421 | for (i = 1; i < PL_origargc; i++) |
2422 | PL_origargv[i] = Nullch; | |
79072805 | 2423 | } |
e2975953 | 2424 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2425 | break; |
cd39f2b6 | 2426 | #endif |
79072805 LW |
2427 | } |
2428 | return 0; | |
2429 | } | |
2430 | ||
2431 | I32 | |
864dbfa3 | 2432 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2433 | { |
2434 | register char **sigv; | |
2435 | ||
22c35a8c | 2436 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2437 | if (strEQ(sig,*sigv)) |
22c35a8c | 2438 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2439 | #ifdef SIGCLD |
2440 | if (strEQ(sig,"CHLD")) | |
2441 | return SIGCLD; | |
2442 | #endif | |
2443 | #ifdef SIGCHLD | |
2444 | if (strEQ(sig,"CLD")) | |
2445 | return SIGCHLD; | |
2446 | #endif | |
2447 | return 0; | |
2448 | } | |
2449 | ||
df3728a2 | 2450 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2451 | static SV* sig_sv; |
df3728a2 | 2452 | #endif |
84902520 | 2453 | |
ecfc5424 | 2454 | Signal_t |
cea2e8a9 | 2455 | Perl_sighandler(int sig) |
79072805 | 2456 | { |
1018e26f NIS |
2457 | #ifdef PERL_GET_SIG_CONTEXT |
2458 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2459 | #else |
cea2e8a9 | 2460 | dTHX; |
71d280e3 | 2461 | #endif |
79072805 | 2462 | dSP; |
00d579c5 | 2463 | GV *gv = Nullgv; |
a0d0e21e | 2464 | HV *st; |
b7953727 | 2465 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2466 | CV *cv = Nullcv; |
533c011a | 2467 | OP *myop = PL_op; |
84902520 | 2468 | U32 flags = 0; |
3280af22 | 2469 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2470 | |
3280af22 | 2471 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2472 | flags |= 1; |
3280af22 | 2473 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2474 | flags |= 4; |
3280af22 | 2475 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2476 | flags |= 8; |
3280af22 | 2477 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2478 | flags |= 16; |
2479 | ||
727405f8 | 2480 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2481 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2482 | PL_sig_name[sig]); |
2483 | exit(sig); | |
2484 | } | |
ff0cee69 | 2485 | |
84902520 TB |
2486 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2487 | infinity, so we fix 4 (in fact 5): */ | |
2488 | if (flags & 1) { | |
3280af22 | 2489 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2490 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2491 | } |
ac27b0f5 | 2492 | if (flags & 4) |
3280af22 | 2493 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2494 | if (flags & 8) { |
3280af22 NIS |
2495 | PL_retstack_ix++; |
2496 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2497 | } |
2498 | if (flags & 16) | |
3280af22 | 2499 | PL_scopestack_ix += 1; |
84902520 | 2500 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2501 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2502 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2503 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2504 | |
a0d0e21e | 2505 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2506 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2507 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2508 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2509 | : ((cv && CvGV(cv)) |
2510 | ? GvENAME(CvGV(cv)) | |
2511 | : "__ANON__"))); | |
2512 | goto cleanup; | |
79072805 LW |
2513 | } |
2514 | ||
22c35a8c GS |
2515 | if(PL_psig_name[sig]) { |
2516 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2517 | flags |= 64; |
df3728a2 | 2518 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2519 | sig_sv = sv; |
df3728a2 | 2520 | #endif |
84902520 | 2521 | } else { |
ff0cee69 | 2522 | sv = sv_newmortal(); |
22c35a8c | 2523 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2524 | } |
e336de0d | 2525 | |
e788e7d3 | 2526 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2527 | PUSHMARK(SP); |
79072805 | 2528 | PUSHs(sv); |
79072805 | 2529 | PUTBACK; |
a0d0e21e | 2530 | |
1b266415 | 2531 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2532 | |
d3acc0f7 | 2533 | POPSTACK; |
1b266415 | 2534 | if (SvTRUE(ERRSV)) { |
1d615522 | 2535 | #ifndef PERL_MICRO |
983dbef6 | 2536 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2537 | /* Handler "died", for example to get out of a restart-able read(). |
2538 | * Before we re-do that on its behalf re-enable the signal which was | |
2539 | * blocked by the system when we entered. | |
2540 | */ | |
2541 | sigset_t set; | |
2542 | sigemptyset(&set); | |
2543 | sigaddset(&set,sig); | |
2544 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2545 | #else | |
2546 | /* Not clear if this will work */ | |
2547 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2548 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2549 | #endif |
1d615522 | 2550 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2551 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2552 | } |
00d579c5 | 2553 | cleanup: |
84902520 | 2554 | if (flags & 1) |
3280af22 | 2555 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2556 | if (flags & 4) |
3280af22 | 2557 | PL_markstack_ptr--; |
ac27b0f5 | 2558 | if (flags & 8) |
3280af22 | 2559 | PL_retstack_ix--; |
84902520 | 2560 | if (flags & 16) |
3280af22 | 2561 | PL_scopestack_ix -= 1; |
84902520 TB |
2562 | if (flags & 64) |
2563 | SvREFCNT_dec(sv); | |
533c011a | 2564 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2565 | |
3280af22 NIS |
2566 | PL_Sv = tSv; /* Restore global temporaries. */ |
2567 | PL_Xpv = tXpv; | |
79072805 LW |
2568 | return; |
2569 | } | |
4e35701f NIS |
2570 | |
2571 | ||
51371543 | 2572 | static void |
acfe0abc | 2573 | restore_magic(pTHX_ void *p) |
51371543 | 2574 | { |
48944bdf | 2575 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2576 | SV* sv = mgs->mgs_sv; |
2577 | ||
2578 | if (!sv) | |
2579 | return; | |
2580 | ||
2581 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2582 | { | |
2583 | if (mgs->mgs_flags) | |
2584 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2585 | else | |
2586 | mg_magical(sv); | |
2587 | if (SvGMAGICAL(sv)) | |
2588 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2589 | } | |
2590 | ||
2591 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2592 | ||
2593 | /* If we're still on top of the stack, pop us off. (That condition | |
2594 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2595 | * if it's being called via leave_scope.) | |
2596 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2597 | * may leave alloc gunk on the savestack, and some code | |
2598 | * (e.g. sighandler) doesn't expect that... | |
2599 | */ | |
2600 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2601 | { | |
2602 | I32 popval = SSPOPINT; | |
c76ac1ee | 2603 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2604 | PL_savestack_ix -= 2; |
2605 | popval = SSPOPINT; | |
2606 | assert(popval == SAVEt_ALLOC); | |
2607 | popval = SSPOPINT; | |
2608 | PL_savestack_ix -= popval; | |
2609 | } | |
2610 | ||
2611 | } | |
2612 | ||
2613 | static void | |
acfe0abc | 2614 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2615 | { |
51371543 GS |
2616 | U32 flags = *(U32*)p; |
2617 | ||
2618 | if (flags & 1) | |
2619 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2620 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2621 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2622 | if (flags & 64) |
2623 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2624 | #endif |
51371543 | 2625 | } |
1018e26f NIS |
2626 | |
2627 |