Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
bc89e66f | 3 | * Copyright (c) 1991-2001, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
864dbfa3 | 16 | #define PERL_IN_MG_C |
79072805 LW |
17 | #include "perl.h" |
18 | ||
5cd24f17 | 19 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
20 | # ifndef NGROUPS |
21 | # define NGROUPS 32 | |
22 | # endif | |
b7953727 JH |
23 | # ifdef I_GRP |
24 | # include <grp.h> | |
25 | # endif | |
188ea221 CS |
26 | #endif |
27 | ||
acfe0abc GS |
28 | static void restore_magic(pTHX_ void *p); |
29 | static void unwind_handler_stack(pTHX_ void *p); | |
51371543 | 30 | |
c07a80fd | 31 | /* |
32 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
33 | */ | |
34 | ||
35 | struct magic_state { | |
36 | SV* mgs_sv; | |
37 | U32 mgs_flags; | |
455ece5e | 38 | I32 mgs_ss_ix; |
c07a80fd | 39 | }; |
455ece5e | 40 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
41 | |
42 | STATIC void | |
8fb26106 | 43 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 44 | { |
455ece5e | 45 | MGS* mgs; |
c07a80fd | 46 | assert(SvMAGICAL(sv)); |
47 | ||
685f876f | 48 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
49 | |
50 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 51 | mgs->mgs_sv = sv; |
52 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 53 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 54 | |
55 | SvMAGICAL_off(sv); | |
56 | SvREADONLY_off(sv); | |
06759ea0 | 57 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 58 | } |
59 | ||
954c1994 GS |
60 | /* |
61 | =for apidoc mg_magical | |
62 | ||
63 | Turns on the magical status of an SV. See C<sv_magic>. | |
64 | ||
65 | =cut | |
66 | */ | |
67 | ||
8990e307 | 68 | void |
864dbfa3 | 69 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
70 | { |
71 | MAGIC* mg; | |
72 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
73 | MGVTBL* vtbl = mg->mg_virtual; | |
74 | if (vtbl) { | |
2b260de0 | 75 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
76 | SvGMAGICAL_on(sv); |
77 | if (vtbl->svt_set) | |
78 | SvSMAGICAL_on(sv); | |
2b260de0 | 79 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
80 | SvRMAGICAL_on(sv); |
81 | } | |
82 | } | |
83 | } | |
84 | ||
954c1994 GS |
85 | /* |
86 | =for apidoc mg_get | |
87 | ||
88 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
89 | ||
90 | =cut | |
91 | */ | |
92 | ||
79072805 | 93 | int |
864dbfa3 | 94 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 95 | { |
ff76feab AMS |
96 | int new = 0; |
97 | MAGIC *newmg, *head, *cur, *mg; | |
98 | I32 mgs_ix = SSNEW(sizeof(MGS)); | |
463ee0b2 | 99 | |
455ece5e | 100 | save_magic(mgs_ix, sv); |
463ee0b2 | 101 | |
ff76feab AMS |
102 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
103 | list of magic. svt_get() may delete the current entry, add new | |
104 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
105 | ||
106 | newmg = cur = head = mg = SvMAGIC(sv); | |
107 | while (mg) { | |
108 | MGVTBL *vtbl = mg->mg_virtual; | |
109 | ||
2b260de0 | 110 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 111 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
ff76feab AMS |
112 | /* Don't restore the flags for this entry if it was deleted. */ |
113 | if (mg->mg_flags & MGf_GSKIP) | |
114 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 115 | } |
ff76feab AMS |
116 | |
117 | mg = mg->mg_moremagic; | |
118 | ||
119 | if (new) { | |
120 | /* Have we finished with the new entries we saw? Start again | |
121 | where we left off (unless there are more new entries). */ | |
122 | if (mg == head) { | |
123 | new = 0; | |
124 | mg = cur; | |
125 | head = newmg; | |
126 | } | |
127 | } | |
128 | ||
129 | /* Were any new entries added? */ | |
130 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
131 | new = 1; | |
132 | cur = mg; | |
133 | mg = newmg; | |
760ac839 | 134 | } |
79072805 | 135 | } |
463ee0b2 | 136 | |
acfe0abc | 137 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
138 | return 0; |
139 | } | |
140 | ||
954c1994 GS |
141 | /* |
142 | =for apidoc mg_set | |
143 | ||
144 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
145 | ||
146 | =cut | |
147 | */ | |
148 | ||
79072805 | 149 | int |
864dbfa3 | 150 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 151 | { |
8fb26106 | 152 | I32 mgs_ix; |
79072805 | 153 | MAGIC* mg; |
463ee0b2 LW |
154 | MAGIC* nextmg; |
155 | ||
455ece5e AD |
156 | mgs_ix = SSNEW(sizeof(MGS)); |
157 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
158 | |
159 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 160 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 161 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
162 | if (mg->mg_flags & MGf_GSKIP) { |
163 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 164 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 165 | } |
2b260de0 | 166 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 167 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 168 | } |
463ee0b2 | 169 | |
acfe0abc | 170 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
171 | return 0; |
172 | } | |
173 | ||
954c1994 GS |
174 | /* |
175 | =for apidoc mg_length | |
176 | ||
177 | Report on the SV's length. See C<sv_magic>. | |
178 | ||
179 | =cut | |
180 | */ | |
181 | ||
79072805 | 182 | U32 |
864dbfa3 | 183 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
184 | { |
185 | MAGIC* mg; | |
463ee0b2 | 186 | STRLEN len; |
463ee0b2 | 187 | |
79072805 LW |
188 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
189 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 190 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 191 | I32 mgs_ix; |
48e43a1c | 192 | |
455ece5e AD |
193 | mgs_ix = SSNEW(sizeof(MGS)); |
194 | save_magic(mgs_ix, sv); | |
a0d0e21e | 195 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 196 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 197 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
198 | return len; |
199 | } | |
200 | } | |
201 | ||
5636d518 DB |
202 | if (DO_UTF8(sv)) |
203 | { | |
204 | U8 *s = (U8*)SvPV(sv, len); | |
205 | len = Perl_utf8_length(aTHX_ s, s + len); | |
206 | } | |
207 | else | |
208 | (void)SvPV(sv, len); | |
463ee0b2 | 209 | return len; |
79072805 LW |
210 | } |
211 | ||
8fb26106 | 212 | I32 |
864dbfa3 | 213 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
214 | { |
215 | MAGIC* mg; | |
216 | I32 len; | |
ac27b0f5 | 217 | |
93965878 NIS |
218 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
219 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 220 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 221 | I32 mgs_ix; |
455ece5e AD |
222 | |
223 | mgs_ix = SSNEW(sizeof(MGS)); | |
224 | save_magic(mgs_ix, sv); | |
93965878 | 225 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 226 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 227 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
228 | return len; |
229 | } | |
230 | } | |
231 | ||
232 | switch(SvTYPE(sv)) { | |
233 | case SVt_PVAV: | |
234 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
235 | return len; | |
236 | case SVt_PVHV: | |
237 | /* FIXME */ | |
238 | default: | |
cea2e8a9 | 239 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
240 | break; |
241 | } | |
242 | return 0; | |
243 | } | |
244 | ||
954c1994 GS |
245 | /* |
246 | =for apidoc mg_clear | |
247 | ||
248 | Clear something magical that the SV represents. See C<sv_magic>. | |
249 | ||
250 | =cut | |
251 | */ | |
252 | ||
79072805 | 253 | int |
864dbfa3 | 254 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 255 | { |
8fb26106 | 256 | I32 mgs_ix; |
79072805 | 257 | MAGIC* mg; |
463ee0b2 | 258 | |
455ece5e AD |
259 | mgs_ix = SSNEW(sizeof(MGS)); |
260 | save_magic(mgs_ix, sv); | |
463ee0b2 | 261 | |
79072805 LW |
262 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
263 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
264 | /* omit GSKIP -- never set here */ |
265 | ||
2b260de0 | 266 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 267 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 268 | } |
463ee0b2 | 269 | |
acfe0abc | 270 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
271 | return 0; |
272 | } | |
273 | ||
954c1994 GS |
274 | /* |
275 | =for apidoc mg_find | |
276 | ||
277 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
278 | ||
279 | =cut | |
280 | */ | |
281 | ||
93a17b20 | 282 | MAGIC* |
864dbfa3 | 283 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
284 | { |
285 | MAGIC* mg; | |
3f8f4626 DC |
286 | if (!sv) |
287 | return 0; | |
93a17b20 LW |
288 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
289 | if (mg->mg_type == type) | |
290 | return mg; | |
291 | } | |
292 | return 0; | |
293 | } | |
294 | ||
954c1994 GS |
295 | /* |
296 | =for apidoc mg_copy | |
297 | ||
298 | Copies the magic from one SV to another. See C<sv_magic>. | |
299 | ||
300 | =cut | |
301 | */ | |
302 | ||
79072805 | 303 | int |
864dbfa3 | 304 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 305 | { |
463ee0b2 | 306 | int count = 0; |
79072805 | 307 | MAGIC* mg; |
463ee0b2 LW |
308 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
309 | if (isUPPER(mg->mg_type)) { | |
33c27489 | 310 | sv_magic(nsv, |
14befaf4 DM |
311 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
312 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
313 | ? sv : mg->mg_obj, | |
33c27489 | 314 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 315 | count++; |
79072805 | 316 | } |
79072805 | 317 | } |
463ee0b2 | 318 | return count; |
79072805 LW |
319 | } |
320 | ||
954c1994 GS |
321 | /* |
322 | =for apidoc mg_free | |
323 | ||
324 | Free any magic storage used by the SV. See C<sv_magic>. | |
325 | ||
326 | =cut | |
327 | */ | |
328 | ||
79072805 | 329 | int |
864dbfa3 | 330 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
331 | { |
332 | MAGIC* mg; | |
333 | MAGIC* moremagic; | |
334 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
335 | MGVTBL* vtbl = mg->mg_virtual; | |
336 | moremagic = mg->mg_moremagic; | |
2b260de0 | 337 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 338 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 339 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 | 340 | if (mg->mg_len >= 0) |
88e89b8a | 341 | Safefree(mg->mg_ptr); |
565764a8 | 342 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 343 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 344 | } |
85e6fe83 | 345 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 346 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
347 | Safefree(mg); |
348 | } | |
349 | SvMAGIC(sv) = 0; | |
350 | return 0; | |
351 | } | |
352 | ||
d460ef45 | 353 | |
79072805 LW |
354 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
355 | #include <signal.h> | |
356 | #endif | |
357 | ||
942e002e | 358 | U32 |
864dbfa3 | 359 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 360 | { |
6cef1e77 | 361 | register REGEXP *rx; |
6cef1e77 | 362 | |
aaa362c4 | 363 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
364 | if (mg->mg_obj) /* @+ */ |
365 | return rx->nparens; | |
366 | else /* @- */ | |
367 | return rx->lastparen; | |
368 | } | |
ac27b0f5 | 369 | |
942e002e | 370 | return (U32)-1; |
6cef1e77 IZ |
371 | } |
372 | ||
373 | int | |
864dbfa3 | 374 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 375 | { |
6cef1e77 | 376 | register I32 paren; |
cf93c79d | 377 | register I32 s; |
6cef1e77 IZ |
378 | register I32 i; |
379 | register REGEXP *rx; | |
cf93c79d | 380 | I32 t; |
6cef1e77 | 381 | |
aaa362c4 | 382 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
383 | paren = mg->mg_len; |
384 | if (paren < 0) | |
385 | return 0; | |
386 | if (paren <= rx->nparens && | |
cf93c79d IZ |
387 | (s = rx->startp[paren]) != -1 && |
388 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
389 | { |
390 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 391 | i = t; |
6cef1e77 | 392 | else /* @- */ |
cf93c79d | 393 | i = s; |
1aa99e6b | 394 | |
53c4c00c | 395 | if (i > 0 && PL_reg_match_utf8) { |
1aa99e6b | 396 | char *b = rx->subbeg; |
0064a8a9 JH |
397 | if (b) |
398 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 399 | } |
0064a8a9 JH |
400 | |
401 | sv_setiv(sv, i); | |
6cef1e77 IZ |
402 | } |
403 | } | |
404 | return 0; | |
405 | } | |
406 | ||
e4b89193 | 407 | int |
a29d06ed MG |
408 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
409 | { | |
a29d06ed | 410 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
411 | /* NOT REACHED */ |
412 | return 0; | |
a29d06ed MG |
413 | } |
414 | ||
93a17b20 | 415 | U32 |
864dbfa3 | 416 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
417 | { |
418 | register I32 paren; | |
93a17b20 | 419 | register I32 i; |
d9f97599 | 420 | register REGEXP *rx; |
a197cbdd | 421 | I32 s1, t1; |
93a17b20 LW |
422 | |
423 | switch (*mg->mg_ptr) { | |
424 | case '1': case '2': case '3': case '4': | |
425 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 426 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 427 | |
ffc61ed2 | 428 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 429 | getparen: |
d9f97599 | 430 | if (paren <= rx->nparens && |
cf93c79d IZ |
431 | (s1 = rx->startp[paren]) != -1 && |
432 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 433 | { |
cf93c79d | 434 | i = t1 - s1; |
a197cbdd | 435 | getlen: |
53c4c00c | 436 | if (i > 0 && PL_reg_match_utf8) { |
ffc61ed2 | 437 | char *s = rx->subbeg + s1; |
a197cbdd | 438 | char *send = rx->subbeg + t1; |
ffc61ed2 | 439 | |
60425c38 JH |
440 | i = t1 - s1; |
441 | if (is_utf8_string((U8*)s, i)) | |
442 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 443 | } |
ffc61ed2 | 444 | if (i < 0) |
0844c848 | 445 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 446 | return i; |
93a17b20 | 447 | } |
93a17b20 | 448 | } |
748a9306 | 449 | return 0; |
93a17b20 | 450 | case '+': |
aaa362c4 | 451 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 452 | paren = rx->lastparen; |
13f57bf8 CS |
453 | if (paren) |
454 | goto getparen; | |
93a17b20 | 455 | } |
748a9306 | 456 | return 0; |
a01268b5 JH |
457 | case '\016': /* ^N */ |
458 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
459 | paren = rx->lastcloseparen; | |
460 | if (paren) | |
461 | goto getparen; | |
462 | } | |
463 | return 0; | |
93a17b20 | 464 | case '`': |
aaa362c4 | 465 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
466 | if (rx->startp[0] != -1) { |
467 | i = rx->startp[0]; | |
a197cbdd GS |
468 | if (i > 0) { |
469 | s1 = 0; | |
470 | t1 = i; | |
471 | goto getlen; | |
472 | } | |
93a17b20 | 473 | } |
93a17b20 | 474 | } |
748a9306 | 475 | return 0; |
93a17b20 | 476 | case '\'': |
aaa362c4 | 477 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
478 | if (rx->endp[0] != -1) { |
479 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
480 | if (i > 0) { |
481 | s1 = rx->endp[0]; | |
482 | t1 = rx->sublen; | |
483 | goto getlen; | |
484 | } | |
93a17b20 | 485 | } |
93a17b20 | 486 | } |
748a9306 | 487 | return 0; |
93a17b20 LW |
488 | } |
489 | magic_get(sv,mg); | |
2d8e6c8d GS |
490 | if (!SvPOK(sv) && SvNIOK(sv)) { |
491 | STRLEN n_a; | |
492 | sv_2pv(sv, &n_a); | |
493 | } | |
93a17b20 LW |
494 | if (SvPOK(sv)) |
495 | return SvCUR(sv); | |
496 | return 0; | |
497 | } | |
498 | ||
79072805 | 499 | int |
864dbfa3 | 500 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
501 | { |
502 | register I32 paren; | |
503 | register char *s; | |
504 | register I32 i; | |
d9f97599 | 505 | register REGEXP *rx; |
79072805 LW |
506 | |
507 | switch (*mg->mg_ptr) { | |
748a9306 | 508 | case '\001': /* ^A */ |
3280af22 | 509 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 510 | break; |
49460fe6 NIS |
511 | case '\003': /* ^C */ |
512 | sv_setiv(sv, (IV)PL_minus_c); | |
513 | break; | |
514 | ||
79072805 | 515 | case '\004': /* ^D */ |
aea4f609 | 516 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 517 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 518 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 519 | #endif |
79072805 | 520 | break; |
28f23441 | 521 | case '\005': /* ^E */ |
cd39f2b6 JH |
522 | #ifdef MACOS_TRADITIONAL |
523 | { | |
524 | char msg[256]; | |
ac27b0f5 | 525 | |
bf4acbe4 GS |
526 | sv_setnv(sv,(double)gMacPerl_OSErr); |
527 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
cd39f2b6 JH |
528 | } |
529 | #else | |
28f23441 | 530 | #ifdef VMS |
531 | { | |
532 | # include <descrip.h> | |
533 | # include <starlet.h> | |
534 | char msg[255]; | |
535 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 536 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 537 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
538 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
539 | else | |
540 | sv_setpv(sv,""); | |
541 | } | |
542 | #else | |
88e89b8a | 543 | #ifdef OS2 |
fb73857a | 544 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 545 | sv_setnv(sv, (NV)errno); |
fb73857a | 546 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
547 | } else { | |
017f25f1 IZ |
548 | if (errno != errno_isOS2) { |
549 | int tmp = _syserrno(); | |
550 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
551 | Perl_rc = tmp; | |
552 | } | |
65202027 | 553 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 554 | sv_setpv(sv, os2error(Perl_rc)); |
555 | } | |
88e89b8a | 556 | #else |
22fae026 TM |
557 | #ifdef WIN32 |
558 | { | |
559 | DWORD dwErr = GetLastError(); | |
65202027 | 560 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 561 | if (dwErr) |
76e3520e | 562 | { |
0cb96387 | 563 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 564 | } |
22fae026 TM |
565 | else |
566 | sv_setpv(sv, ""); | |
567 | SetLastError(dwErr); | |
568 | } | |
569 | #else | |
65202027 | 570 | sv_setnv(sv, (NV)errno); |
28f23441 | 571 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
572 | #endif | |
88e89b8a | 573 | #endif |
22fae026 | 574 | #endif |
cd39f2b6 | 575 | #endif |
946ec16e | 576 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 577 | break; |
79072805 | 578 | case '\006': /* ^F */ |
3280af22 | 579 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 580 | break; |
a0d0e21e | 581 | case '\010': /* ^H */ |
3280af22 | 582 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 583 | break; |
9d116dd7 | 584 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
585 | if (PL_inplace) |
586 | sv_setpv(sv, PL_inplace); | |
79072805 | 587 | else |
3280af22 | 588 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 589 | break; |
ac27b0f5 NIS |
590 | case '\017': /* ^O & ^OPEN */ |
591 | if (*(mg->mg_ptr+1) == '\0') | |
592 | sv_setpv(sv, PL_osname); | |
593 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
594 | if (!PL_compiling.cop_io) | |
595 | sv_setsv(sv, &PL_sv_undef); | |
596 | else { | |
597 | sv_setsv(sv, PL_compiling.cop_io); | |
598 | } | |
599 | } | |
28f23441 | 600 | break; |
79072805 | 601 | case '\020': /* ^P */ |
3280af22 | 602 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 603 | break; |
fb73857a | 604 | case '\023': /* ^S */ |
d58bf5aa | 605 | { |
3280af22 | 606 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 607 | (void)SvOK_off(sv); |
3280af22 | 608 | else if (PL_in_eval) |
6dc8a9e4 | 609 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
610 | else |
611 | sv_setiv(sv, 0); | |
d58bf5aa | 612 | } |
fb73857a | 613 | break; |
79072805 | 614 | case '\024': /* ^T */ |
7c36658b | 615 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 616 | #ifdef BIG_TIME |
7c36658b | 617 | sv_setnv(sv, PL_basetime); |
88e89b8a | 618 | #else |
7c36658b | 619 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 620 | #endif |
7c36658b MS |
621 | } |
622 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
623 | sv_setiv(sv, PL_tainting); | |
624 | break; | |
46487f74 | 625 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
626 | if (*(mg->mg_ptr+1) == '\0') |
627 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 628 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
629 | if (PL_compiling.cop_warnings == pWARN_NONE || |
630 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
631 | { |
632 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
633 | } | |
d3a7d8c7 | 634 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 635 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 636 | } |
4438c4b7 JH |
637 | else { |
638 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 639 | } |
d3a7d8c7 | 640 | SvPOK_only(sv); |
4438c4b7 | 641 | } |
46487f74 GS |
642 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
643 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
644 | break; |
645 | case '1': case '2': case '3': case '4': | |
646 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 647 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
648 | I32 s1, t1; |
649 | ||
a863c7d1 MB |
650 | /* |
651 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
652 | * XXX Does the new way break anything? | |
653 | */ | |
ffc61ed2 | 654 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 655 | getparen: |
d9f97599 | 656 | if (paren <= rx->nparens && |
cf93c79d IZ |
657 | (s1 = rx->startp[paren]) != -1 && |
658 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 659 | { |
cf93c79d IZ |
660 | i = t1 - s1; |
661 | s = rx->subbeg + s1; | |
01ec43d0 | 662 | if (!rx->subbeg) |
c2e66d9e GS |
663 | break; |
664 | ||
13f57bf8 | 665 | getrx: |
748a9306 | 666 | if (i >= 0) { |
b7953727 | 667 | bool was_tainted = FALSE; |
3280af22 NIS |
668 | if (PL_tainting) { |
669 | was_tainted = PL_tainted; | |
670 | PL_tainted = FALSE; | |
13f57bf8 | 671 | } |
cf93c79d | 672 | sv_setpvn(sv, s, i); |
53c4c00c | 673 | if (PL_reg_match_utf8 && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
674 | SvUTF8_on(sv); |
675 | else | |
676 | SvUTF8_off(sv); | |
3280af22 NIS |
677 | if (PL_tainting) |
678 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
679 | break; |
680 | } | |
79072805 | 681 | } |
79072805 | 682 | } |
3280af22 | 683 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
684 | break; |
685 | case '+': | |
aaa362c4 | 686 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 687 | paren = rx->lastparen; |
a0d0e21e LW |
688 | if (paren) |
689 | goto getparen; | |
79072805 | 690 | } |
3280af22 | 691 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 692 | break; |
a01268b5 JH |
693 | case '\016': /* ^N */ |
694 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
695 | paren = rx->lastcloseparen; | |
696 | if (paren) | |
697 | goto getparen; | |
698 | } | |
699 | sv_setsv(sv,&PL_sv_undef); | |
700 | break; | |
79072805 | 701 | case '`': |
aaa362c4 | 702 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
703 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
704 | i = rx->startp[0]; | |
13f57bf8 | 705 | goto getrx; |
79072805 | 706 | } |
79072805 | 707 | } |
3280af22 | 708 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
709 | break; |
710 | case '\'': | |
aaa362c4 | 711 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
712 | if (rx->subbeg && rx->endp[0] != -1) { |
713 | s = rx->subbeg + rx->endp[0]; | |
714 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 715 | goto getrx; |
79072805 | 716 | } |
79072805 | 717 | } |
3280af22 | 718 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
719 | break; |
720 | case '.': | |
721 | #ifndef lint | |
3280af22 | 722 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 723 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
724 | } |
725 | #endif | |
726 | break; | |
727 | case '?': | |
809a5acc | 728 | { |
809a5acc | 729 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 730 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
731 | LvTARGOFF(sv) = PL_statusvalue; |
732 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 733 | #endif |
809a5acc | 734 | } |
79072805 LW |
735 | break; |
736 | case '^': | |
3280af22 | 737 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
738 | if (s) |
739 | sv_setpv(sv,s); | |
740 | else { | |
3280af22 | 741 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
742 | sv_catpv(sv,"_TOP"); |
743 | } | |
744 | break; | |
745 | case '~': | |
3280af22 | 746 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 747 | if (!s) |
3280af22 | 748 | s = GvENAME(PL_defoutgv); |
79072805 LW |
749 | sv_setpv(sv,s); |
750 | break; | |
751 | #ifndef lint | |
752 | case '=': | |
3280af22 | 753 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
754 | break; |
755 | case '-': | |
3280af22 | 756 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
757 | break; |
758 | case '%': | |
3280af22 | 759 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
760 | break; |
761 | #endif | |
762 | case ':': | |
763 | break; | |
764 | case '/': | |
765 | break; | |
766 | case '[': | |
3280af22 | 767 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
768 | break; |
769 | case '|': | |
3280af22 | 770 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
771 | break; |
772 | case ',': | |
79072805 LW |
773 | break; |
774 | case '\\': | |
79072805 LW |
775 | break; |
776 | case '#': | |
3280af22 | 777 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
778 | break; |
779 | case '!': | |
a5f75d66 | 780 | #ifdef VMS |
65202027 | 781 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 782 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 783 | #else |
88e89b8a | 784 | { |
785 | int saveerrno = errno; | |
65202027 | 786 | sv_setnv(sv, (NV)errno); |
88e89b8a | 787 | #ifdef OS2 |
ed344e4f IZ |
788 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
789 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 790 | else |
a5f75d66 | 791 | #endif |
2304df62 | 792 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 793 | errno = saveerrno; |
794 | } | |
795 | #endif | |
946ec16e | 796 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
797 | break; |
798 | case '<': | |
3280af22 | 799 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
800 | break; |
801 | case '>': | |
3280af22 | 802 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
803 | break; |
804 | case '(': | |
3280af22 | 805 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 806 | #ifdef HAS_GETGROUPS |
785fb66b | 807 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 808 | #endif |
79072805 LW |
809 | goto add_groups; |
810 | case ')': | |
3280af22 | 811 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 812 | #ifdef HAS_GETGROUPS |
785fb66b | 813 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 814 | #endif |
79072805 | 815 | add_groups: |
79072805 | 816 | #ifdef HAS_GETGROUPS |
79072805 | 817 | { |
a0d0e21e | 818 | Groups_t gary[NGROUPS]; |
79072805 | 819 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 820 | while (--i >= 0) |
785fb66b | 821 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
822 | } |
823 | #endif | |
155aba94 | 824 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
825 | break; |
826 | case '*': | |
827 | break; | |
cd39f2b6 | 828 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
829 | case '0': |
830 | break; | |
cd39f2b6 | 831 | #endif |
4d1ff10f | 832 | #ifdef USE_5005THREADS |
a863c7d1 | 833 | case '@': |
38a03e6e | 834 | sv_setsv(sv, thr->errsv); |
a863c7d1 | 835 | break; |
4d1ff10f | 836 | #endif /* USE_5005THREADS */ |
79072805 | 837 | } |
a0d0e21e | 838 | return 0; |
79072805 LW |
839 | } |
840 | ||
841 | int | |
864dbfa3 | 842 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
843 | { |
844 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
845 | ||
846 | if (uf && uf->uf_val) | |
24f81a43 | 847 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
848 | return 0; |
849 | } | |
850 | ||
851 | int | |
864dbfa3 | 852 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
853 | { |
854 | register char *s; | |
88e89b8a | 855 | char *ptr; |
5aabfad6 | 856 | STRLEN len, klen; |
a0d0e21e | 857 | I32 i; |
1e422769 | 858 | |
a0d0e21e | 859 | s = SvPV(sv,len); |
5aabfad6 | 860 | ptr = MgPV(mg,klen); |
88e89b8a | 861 | my_setenv(ptr, s); |
1e422769 | 862 | |
a0d0e21e LW |
863 | #ifdef DYNAMIC_ENV_FETCH |
864 | /* We just undefd an environment var. Is a replacement */ | |
865 | /* waiting in the wings? */ | |
866 | if (!len) { | |
5aabfad6 | 867 | SV **valp; |
6b88bc9c | 868 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 869 | s = SvPV(*valp, len); |
a0d0e21e LW |
870 | } |
871 | #endif | |
1e422769 | 872 | |
39e571d4 | 873 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
874 | /* And you'll never guess what the dog had */ |
875 | /* in its mouth... */ | |
3280af22 | 876 | if (PL_tainting) { |
1e422769 | 877 | MgTAINTEDDIR_off(mg); |
878 | #ifdef VMS | |
5aabfad6 | 879 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 880 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
881 | struct stat sbuf; | |
882 | int i = 0, j = 0; | |
883 | ||
884 | do { /* DCL$PATH may be a search list */ | |
885 | while (1) { /* as may dev portion of any element */ | |
886 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
887 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
888 | cando_by_name(S_IWUSR,0,elt) ) { | |
889 | MgTAINTEDDIR_on(mg); | |
890 | return 0; | |
891 | } | |
892 | } | |
893 | if ((cp = strchr(elt, ':')) != Nullch) | |
894 | *cp = '\0'; | |
895 | if (my_trnlnm(elt, eltbuf, j++)) | |
896 | elt = eltbuf; | |
897 | else | |
898 | break; | |
899 | } | |
900 | j = 0; | |
901 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
902 | } | |
903 | #endif /* VMS */ | |
5aabfad6 | 904 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 905 | char *strend = s + len; |
463ee0b2 LW |
906 | |
907 | while (s < strend) { | |
96827780 | 908 | char tmpbuf[256]; |
1e422769 | 909 | struct stat st; |
96827780 | 910 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 911 | s, strend, ':', &i); |
463ee0b2 | 912 | s++; |
96827780 MB |
913 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
914 | || *tmpbuf != '/' | |
c6ed36e1 | 915 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 916 | MgTAINTEDDIR_on(mg); |
1e422769 | 917 | return 0; |
918 | } | |
463ee0b2 | 919 | } |
79072805 LW |
920 | } |
921 | } | |
39e571d4 | 922 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 923 | |
79072805 LW |
924 | return 0; |
925 | } | |
926 | ||
927 | int | |
864dbfa3 | 928 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 929 | { |
2d8e6c8d GS |
930 | STRLEN n_a; |
931 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
932 | return 0; |
933 | } | |
934 | ||
88e89b8a | 935 | int |
864dbfa3 | 936 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 937 | { |
938 | #if defined(VMS) | |
cea2e8a9 | 939 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 940 | #else |
3280af22 | 941 | if (PL_localizing) { |
fb73857a | 942 | HE* entry; |
2d8e6c8d | 943 | STRLEN n_a; |
fb73857a | 944 | magic_clear_all_env(sv,mg); |
945 | hv_iterinit((HV*)sv); | |
155aba94 | 946 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 947 | I32 keylen; |
948 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 949 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 950 | } |
951 | } | |
952 | #endif | |
953 | return 0; | |
954 | } | |
955 | ||
956 | int | |
864dbfa3 | 957 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 958 | { |
ed79a026 | 959 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 960 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 961 | #else |
df3728a2 | 962 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 GS |
963 | PerlEnv_clearenv(); |
964 | # else | |
df3728a2 | 965 | #if !defined(MACOS_TRADITIONAL) |
7766f137 | 966 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
967 | I32 i; |
968 | ||
3280af22 | 969 | if (environ == PL_origenviron) |
f2517201 | 970 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
971 | else |
972 | for (i = 0; environ[i]; i++) | |
f2517201 | 973 | safesysfree(environ[i]); |
7766f137 | 974 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 975 | |
66b1d557 HM |
976 | environ[0] = Nullch; |
977 | ||
df3728a2 | 978 | #endif /* !defined(MACOS_TRADITIONAL) */ |
7766f137 | 979 | # endif /* PERL_IMPLICIT_SYS */ |
f2517201 | 980 | #endif /* VMS */ |
3e3baf6d | 981 | return 0; |
66b1d557 HM |
982 | } |
983 | ||
64ca3a65 | 984 | #ifndef PERL_MICRO |
66b1d557 | 985 | int |
864dbfa3 | 986 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 987 | { |
988 | I32 i; | |
2d8e6c8d | 989 | STRLEN n_a; |
88e89b8a | 990 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 991 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 992 | if (i) { |
22c35a8c GS |
993 | if(PL_psig_ptr[i]) |
994 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 995 | else { |
ff68c719 | 996 | Sighandler_t sigstate = rsignal_state(i); |
997 | ||
88e89b8a | 998 | /* cache state so we don't fetch it again */ |
ff68c719 | 999 | if(sigstate == SIG_IGN) |
88e89b8a | 1000 | sv_setpv(sv,"IGNORE"); |
1001 | else | |
3280af22 | 1002 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1003 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1004 | SvTEMP_off(sv); |
1005 | } | |
1006 | } | |
1007 | return 0; | |
1008 | } | |
1009 | int | |
864dbfa3 | 1010 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1011 | { |
1012 | I32 i; | |
2d8e6c8d | 1013 | STRLEN n_a; |
88e89b8a | 1014 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 1015 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1016 | if (i) { |
22c35a8c GS |
1017 | if(PL_psig_ptr[i]) { |
1018 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1019 | PL_psig_ptr[i]=0; | |
88e89b8a | 1020 | } |
22c35a8c GS |
1021 | if(PL_psig_name[i]) { |
1022 | SvREFCNT_dec(PL_psig_name[i]); | |
1023 | PL_psig_name[i]=0; | |
88e89b8a | 1024 | } |
1025 | } | |
1026 | return 0; | |
1027 | } | |
3d37d572 | 1028 | |
0a8e0eff NIS |
1029 | void |
1030 | Perl_raise_signal(pTHX_ int sig) | |
1031 | { | |
1032 | /* Set a flag to say this signal is pending */ | |
1033 | PL_psig_pend[sig]++; | |
1034 | /* And one to say _a_ signal is pending */ | |
1035 | PL_sig_pending = 1; | |
1036 | } | |
1037 | ||
1038 | Signal_t | |
1039 | Perl_csighandler(int sig) | |
1040 | { | |
1041 | #ifdef PERL_OLD_SIGNALS | |
1042 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1043 | (*PL_sighandlerp)(sig); | |
1044 | #else | |
1045 | dTHX; | |
1046 | Perl_raise_signal(aTHX_ sig); | |
1047 | #endif | |
1048 | } | |
1049 | ||
1050 | void | |
1051 | Perl_despatch_signals(pTHX) | |
1052 | { | |
1053 | int sig; | |
1054 | PL_sig_pending = 0; | |
1055 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1056 | if (PL_psig_pend[sig]) { | |
1057 | PL_psig_pend[sig] = 0; | |
1058 | (*PL_sighandlerp)(sig); | |
1059 | } | |
1060 | } | |
1061 | } | |
1062 | ||
85e6fe83 | 1063 | int |
864dbfa3 | 1064 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1065 | { |
1066 | register char *s; | |
1067 | I32 i; | |
b7953727 | 1068 | SV** svp = 0; |
e72dc28c | 1069 | STRLEN len; |
a0d0e21e | 1070 | |
e72dc28c | 1071 | s = MgPV(mg,len); |
748a9306 LW |
1072 | if (*s == '_') { |
1073 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1074 | svp = &PL_diehook; |
748a9306 | 1075 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1076 | svp = &PL_warnhook; |
748a9306 | 1077 | else |
cea2e8a9 | 1078 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1079 | i = 0; |
4633a7c4 LW |
1080 | if (*svp) { |
1081 | SvREFCNT_dec(*svp); | |
1082 | *svp = 0; | |
1083 | } | |
748a9306 LW |
1084 | } |
1085 | else { | |
1086 | i = whichsig(s); /* ...no, a brick */ | |
1087 | if (!i) { | |
e476b1b5 | 1088 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1089 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1090 | return 0; |
1091 | } | |
22c35a8c GS |
1092 | SvREFCNT_dec(PL_psig_name[i]); |
1093 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1094 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1095 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1096 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1097 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1098 | } |
a0d0e21e | 1099 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1100 | if (i) |
0a8e0eff | 1101 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1102 | else |
1103 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1104 | return 0; |
1105 | } | |
e72dc28c | 1106 | s = SvPV_force(sv,len); |
748a9306 LW |
1107 | if (strEQ(s,"IGNORE")) { |
1108 | if (i) | |
ff68c719 | 1109 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1110 | else |
1111 | *svp = 0; | |
1112 | } | |
1113 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1114 | if (i) | |
ff68c719 | 1115 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1116 | else |
1117 | *svp = 0; | |
1118 | } | |
79072805 | 1119 | else { |
5aabfad6 | 1120 | /* |
1121 | * We should warn if HINT_STRICT_REFS, but without | |
1122 | * access to a known hint bit in a known OP, we can't | |
1123 | * tell whether HINT_STRICT_REFS is in force or not. | |
1124 | */ | |
46fc3d4c | 1125 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1126 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1127 | if (i) |
0a8e0eff | 1128 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1129 | else |
1130 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1131 | } |
1132 | return 0; | |
1133 | } | |
64ca3a65 | 1134 | #endif /* !PERL_MICRO */ |
79072805 LW |
1135 | |
1136 | int | |
864dbfa3 | 1137 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1138 | { |
3280af22 | 1139 | PL_sub_generation++; |
463ee0b2 LW |
1140 | return 0; |
1141 | } | |
1142 | ||
1143 | int | |
864dbfa3 | 1144 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1145 | { |
a0d0e21e | 1146 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1147 | PL_amagic_generation++; |
463ee0b2 | 1148 | |
a0d0e21e LW |
1149 | return 0; |
1150 | } | |
463ee0b2 | 1151 | |
946ec16e | 1152 | int |
864dbfa3 | 1153 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1154 | { |
1155 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1156 | I32 i = 0; |
497b47a8 | 1157 | |
6ff81951 | 1158 | if (hv) { |
497b47a8 JH |
1159 | (void) hv_iterinit(hv); |
1160 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1161 | i = HvKEYS(hv); | |
1162 | else { | |
1163 | while (hv_iternext(hv)) | |
1164 | i++; | |
1165 | } | |
6ff81951 GS |
1166 | } |
1167 | ||
1168 | sv_setiv(sv, (IV)i); | |
1169 | return 0; | |
1170 | } | |
1171 | ||
1172 | int | |
864dbfa3 | 1173 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1174 | { |
1175 | if (LvTARG(sv)) { | |
1176 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1177 | } |
1178 | return 0; | |
ac27b0f5 | 1179 | } |
946ec16e | 1180 | |
e336de0d | 1181 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1182 | STATIC int |
cea2e8a9 | 1183 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1184 | { |
1185 | dSP; | |
463ee0b2 | 1186 | |
924508f0 GS |
1187 | PUSHMARK(SP); |
1188 | EXTEND(SP, n); | |
33c27489 | 1189 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1190 | if (n > 1) { |
93965878 | 1191 | if (mg->mg_ptr) { |
565764a8 | 1192 | if (mg->mg_len >= 0) |
79cb57f6 | 1193 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1194 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1195 | PUSHs((SV*)mg->mg_ptr); |
1196 | } | |
14befaf4 | 1197 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1198 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1199 | } |
1200 | } | |
1201 | if (n > 2) { | |
1202 | PUSHs(val); | |
88e89b8a | 1203 | } |
463ee0b2 LW |
1204 | PUTBACK; |
1205 | ||
864dbfa3 | 1206 | return call_method(meth, flags); |
946ec16e | 1207 | } |
1208 | ||
76e3520e | 1209 | STATIC int |
cea2e8a9 | 1210 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1211 | { |
1212 | dSP; | |
463ee0b2 | 1213 | |
a0d0e21e LW |
1214 | ENTER; |
1215 | SAVETMPS; | |
e788e7d3 | 1216 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1217 | |
33c27489 | 1218 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1219 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1220 | } |
463ee0b2 | 1221 | |
d3acc0f7 | 1222 | POPSTACK; |
a0d0e21e LW |
1223 | FREETMPS; |
1224 | LEAVE; | |
1225 | return 0; | |
1226 | } | |
463ee0b2 | 1227 | |
a0d0e21e | 1228 | int |
864dbfa3 | 1229 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1230 | { |
1231 | magic_methpack(sv,mg,"FETCH"); | |
1232 | if (mg->mg_ptr) | |
1233 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1234 | return 0; |
1235 | } | |
1236 | ||
1237 | int | |
864dbfa3 | 1238 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1239 | { |
1240 | dSP; | |
a60c0954 | 1241 | ENTER; |
e788e7d3 | 1242 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1243 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1244 | POPSTACK; |
a60c0954 | 1245 | LEAVE; |
463ee0b2 LW |
1246 | return 0; |
1247 | } | |
1248 | ||
1249 | int | |
864dbfa3 | 1250 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1251 | { |
a0d0e21e LW |
1252 | return magic_methpack(sv,mg,"DELETE"); |
1253 | } | |
463ee0b2 | 1254 | |
93965878 NIS |
1255 | |
1256 | U32 | |
864dbfa3 | 1257 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1258 | { |
e336de0d | 1259 | dSP; |
93965878 NIS |
1260 | U32 retval = 0; |
1261 | ||
1262 | ENTER; | |
1263 | SAVETMPS; | |
e788e7d3 | 1264 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1265 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1266 | sv = *PL_stack_sp--; |
a60c0954 | 1267 | retval = (U32) SvIV(sv)-1; |
93965878 | 1268 | } |
d3acc0f7 | 1269 | POPSTACK; |
93965878 NIS |
1270 | FREETMPS; |
1271 | LEAVE; | |
1272 | return retval; | |
1273 | } | |
1274 | ||
cea2e8a9 GS |
1275 | int |
1276 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1277 | { |
1278 | dSP; | |
463ee0b2 | 1279 | |
e336de0d | 1280 | ENTER; |
e788e7d3 | 1281 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1282 | PUSHMARK(SP); |
33c27489 | 1283 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1284 | PUTBACK; |
864dbfa3 | 1285 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1286 | POPSTACK; |
a60c0954 | 1287 | LEAVE; |
463ee0b2 LW |
1288 | return 0; |
1289 | } | |
1290 | ||
1291 | int | |
864dbfa3 | 1292 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1293 | { |
463ee0b2 | 1294 | dSP; |
dff6d3cd | 1295 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1296 | |
1297 | ENTER; | |
a0d0e21e | 1298 | SAVETMPS; |
e788e7d3 | 1299 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1300 | PUSHMARK(SP); |
1301 | EXTEND(SP, 2); | |
33c27489 | 1302 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1303 | if (SvOK(key)) |
1304 | PUSHs(key); | |
1305 | PUTBACK; | |
1306 | ||
864dbfa3 | 1307 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1308 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1309 | |
d3acc0f7 | 1310 | POPSTACK; |
a0d0e21e LW |
1311 | FREETMPS; |
1312 | LEAVE; | |
79072805 LW |
1313 | return 0; |
1314 | } | |
1315 | ||
1316 | int | |
864dbfa3 | 1317 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1318 | { |
1319 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1320 | } |
a0d0e21e LW |
1321 | |
1322 | int | |
864dbfa3 | 1323 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1324 | { |
1325 | OP *o; | |
1326 | I32 i; | |
1327 | GV* gv; | |
1328 | SV** svp; | |
2d8e6c8d | 1329 | STRLEN n_a; |
79072805 | 1330 | |
3280af22 | 1331 | gv = PL_DBline; |
79072805 | 1332 | i = SvTRUE(sv); |
188ea221 | 1333 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1334 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1335 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1336 | o->op_private = i; |
79072805 LW |
1337 | return 0; |
1338 | } | |
1339 | ||
1340 | int | |
864dbfa3 | 1341 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1342 | { |
3280af22 | 1343 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1344 | return 0; |
1345 | } | |
1346 | ||
1347 | int | |
864dbfa3 | 1348 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1349 | { |
3280af22 | 1350 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1351 | return 0; |
1352 | } | |
1353 | ||
1354 | int | |
864dbfa3 | 1355 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1356 | { |
1357 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1358 | |
a0d0e21e | 1359 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1360 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1361 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1362 | I32 i = mg->mg_len; |
7e2040f0 | 1363 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1364 | sv_pos_b2u(lsv, &i); |
1365 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1366 | return 0; |
1367 | } | |
1368 | } | |
1369 | (void)SvOK_off(sv); | |
1370 | return 0; | |
1371 | } | |
1372 | ||
1373 | int | |
864dbfa3 | 1374 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1375 | { |
1376 | SV* lsv = LvTARG(sv); | |
1377 | SSize_t pos; | |
1378 | STRLEN len; | |
c00206c8 | 1379 | STRLEN ulen = 0; |
a0d0e21e LW |
1380 | |
1381 | mg = 0; | |
ac27b0f5 | 1382 | |
a0d0e21e | 1383 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1384 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1385 | if (!mg) { |
1386 | if (!SvOK(sv)) | |
1387 | return 0; | |
14befaf4 DM |
1388 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1389 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1390 | } |
1391 | else if (!SvOK(sv)) { | |
565764a8 | 1392 | mg->mg_len = -1; |
a0d0e21e LW |
1393 | return 0; |
1394 | } | |
1395 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1396 | ||
c485e607 | 1397 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1398 | |
7e2040f0 | 1399 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1400 | ulen = sv_len_utf8(lsv); |
1401 | if (ulen) | |
1402 | len = ulen; | |
a0ed51b3 LW |
1403 | } |
1404 | ||
a0d0e21e LW |
1405 | if (pos < 0) { |
1406 | pos += len; | |
1407 | if (pos < 0) | |
1408 | pos = 0; | |
1409 | } | |
1410 | else if (pos > len) | |
1411 | pos = len; | |
a0ed51b3 LW |
1412 | |
1413 | if (ulen) { | |
1414 | I32 p = pos; | |
1415 | sv_pos_u2b(lsv, &p, 0); | |
1416 | pos = p; | |
1417 | } | |
1418 | ||
565764a8 | 1419 | mg->mg_len = pos; |
71be2cbc | 1420 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1421 | |
79072805 LW |
1422 | return 0; |
1423 | } | |
1424 | ||
1425 | int | |
864dbfa3 | 1426 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1427 | { |
8646b087 | 1428 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1429 | SvFAKE_off(sv); | |
946ec16e | 1430 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1431 | SvFAKE_on(sv); |
1432 | } | |
1433 | else | |
946ec16e | 1434 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1435 | return 0; |
1436 | } | |
1437 | ||
1438 | int | |
864dbfa3 | 1439 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1440 | { |
1441 | register char *s; | |
1442 | GV* gv; | |
2d8e6c8d | 1443 | STRLEN n_a; |
79072805 LW |
1444 | |
1445 | if (!SvOK(sv)) | |
1446 | return 0; | |
2d8e6c8d | 1447 | s = SvPV(sv, n_a); |
79072805 LW |
1448 | if (*s == '*' && s[1]) |
1449 | s++; | |
85e6fe83 | 1450 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1451 | if (sv == (SV*)gv) |
1452 | return 0; | |
1453 | if (GvGP(sv)) | |
88e89b8a | 1454 | gp_free((GV*)sv); |
79072805 | 1455 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1456 | return 0; |
1457 | } | |
1458 | ||
1459 | int | |
864dbfa3 | 1460 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1461 | { |
1462 | STRLEN len; | |
1463 | SV *lsv = LvTARG(sv); | |
1464 | char *tmps = SvPV(lsv,len); | |
1465 | I32 offs = LvTARGOFF(sv); | |
1466 | I32 rem = LvTARGLEN(sv); | |
1467 | ||
9aa983d2 JH |
1468 | if (SvUTF8(lsv)) |
1469 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1470 | if (offs > len) |
1471 | offs = len; | |
1472 | if (rem + offs > len) | |
1473 | rem = len - offs; | |
1474 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1475 | if (SvUTF8(lsv)) |
2ef4b674 | 1476 | SvUTF8_on(sv); |
6ff81951 GS |
1477 | return 0; |
1478 | } | |
1479 | ||
1480 | int | |
864dbfa3 | 1481 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1482 | { |
9aa983d2 JH |
1483 | STRLEN len; |
1484 | char *tmps = SvPV(sv, len); | |
1485 | SV *lsv = LvTARG(sv); | |
1486 | I32 lvoff = LvTARGOFF(sv); | |
1487 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1488 | |
1aa99e6b | 1489 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1490 | sv_utf8_upgrade(lsv); |
1491 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1492 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1493 | SvUTF8_on(lsv); | |
1494 | } | |
9bf12eaf | 1495 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1496 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1497 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1498 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1499 | Safefree(tmps); | |
1aa99e6b IH |
1500 | } |
1501 | else | |
9aa983d2 | 1502 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1503 | |
79072805 LW |
1504 | return 0; |
1505 | } | |
1506 | ||
1507 | int | |
864dbfa3 | 1508 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1509 | { |
565764a8 | 1510 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1511 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1512 | return 0; |
1513 | } | |
1514 | ||
1515 | int | |
864dbfa3 | 1516 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1517 | { |
3280af22 NIS |
1518 | if (PL_localizing) { |
1519 | if (PL_localizing == 1) | |
565764a8 | 1520 | mg->mg_len <<= 1; |
748a9306 | 1521 | else |
565764a8 | 1522 | mg->mg_len >>= 1; |
a0d0e21e | 1523 | } |
3280af22 | 1524 | else if (PL_tainted) |
565764a8 | 1525 | mg->mg_len |= 1; |
748a9306 | 1526 | else |
565764a8 | 1527 | mg->mg_len &= ~1; |
463ee0b2 LW |
1528 | return 0; |
1529 | } | |
1530 | ||
1531 | int | |
864dbfa3 | 1532 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1533 | { |
1534 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1535 | |
1536 | if (!lsv) { | |
155aba94 | 1537 | (void)SvOK_off(sv); |
6ff81951 GS |
1538 | return 0; |
1539 | } | |
6ff81951 | 1540 | |
81e118e0 | 1541 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1542 | return 0; |
1543 | } | |
1544 | ||
1545 | int | |
864dbfa3 | 1546 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1547 | { |
1548 | do_vecset(sv); /* XXX slurp this routine */ | |
1549 | return 0; | |
1550 | } | |
1551 | ||
1552 | int | |
864dbfa3 | 1553 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1554 | { |
71be2cbc | 1555 | SV *targ = Nullsv; |
5f05dabc | 1556 | if (LvTARGLEN(sv)) { |
68dc0745 | 1557 | if (mg->mg_obj) { |
74e13ce4 GS |
1558 | SV *ahv = LvTARG(sv); |
1559 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1560 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1561 | if (he) | |
1562 | targ = HeVAL(he); | |
1563 | } | |
1564 | else { | |
1565 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1566 | if (svp) | |
1567 | targ = *svp; | |
1568 | } | |
68dc0745 | 1569 | } |
1570 | else { | |
3c78fafa | 1571 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1572 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1573 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1574 | } | |
3280af22 | 1575 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1576 | /* somebody else defined it for us */ |
1577 | SvREFCNT_dec(LvTARG(sv)); | |
1578 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1579 | LvTARGLEN(sv) = 0; | |
1580 | SvREFCNT_dec(mg->mg_obj); | |
1581 | mg->mg_obj = Nullsv; | |
1582 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1583 | } | |
5f05dabc | 1584 | } |
71be2cbc | 1585 | else |
1586 | targ = LvTARG(sv); | |
3280af22 | 1587 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1588 | return 0; |
1589 | } | |
1590 | ||
1591 | int | |
864dbfa3 | 1592 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1593 | { |
1594 | if (LvTARGLEN(sv)) | |
68dc0745 | 1595 | vivify_defelem(sv); |
1596 | if (LvTARG(sv)) { | |
5f05dabc | 1597 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1598 | SvSETMAGIC(LvTARG(sv)); |
1599 | } | |
5f05dabc | 1600 | return 0; |
1601 | } | |
1602 | ||
71be2cbc | 1603 | void |
864dbfa3 | 1604 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1605 | { |
74e13ce4 GS |
1606 | MAGIC *mg; |
1607 | SV *value = Nullsv; | |
71be2cbc | 1608 | |
14befaf4 | 1609 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1610 | return; |
68dc0745 | 1611 | if (mg->mg_obj) { |
74e13ce4 | 1612 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1613 | STRLEN n_a; |
74e13ce4 | 1614 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1615 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1616 | if (he) |
1617 | value = HeVAL(he); | |
1618 | } | |
1619 | else { | |
af7f9c15 | 1620 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1621 | if (svp) |
1622 | value = *svp; | |
1623 | } | |
3280af22 | 1624 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1625 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1626 | } |
68dc0745 | 1627 | else { |
1628 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1629 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1630 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1631 | else { | |
1632 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1633 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1634 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1635 | } |
1636 | } | |
3e3baf6d | 1637 | (void)SvREFCNT_inc(value); |
68dc0745 | 1638 | SvREFCNT_dec(LvTARG(sv)); |
1639 | LvTARG(sv) = value; | |
71be2cbc | 1640 | LvTARGLEN(sv) = 0; |
68dc0745 | 1641 | SvREFCNT_dec(mg->mg_obj); |
1642 | mg->mg_obj = Nullsv; | |
1643 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1644 | } |
1645 | ||
1646 | int | |
864dbfa3 | 1647 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1648 | { |
1649 | AV *av = (AV*)mg->mg_obj; | |
1650 | SV **svp = AvARRAY(av); | |
1651 | I32 i = AvFILLp(av); | |
1652 | while (i >= 0) { | |
1653 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1654 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1655 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1656 | /* XXX Should we check that it hasn't changed? */ |
1657 | SvRV(svp[i]) = 0; | |
155aba94 | 1658 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1659 | SvWEAKREF_off(svp[i]); |
1660 | svp[i] = &PL_sv_undef; | |
1661 | } | |
1662 | i--; | |
1663 | } | |
1664 | return 0; | |
1665 | } | |
1666 | ||
1667 | int | |
864dbfa3 | 1668 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1669 | { |
565764a8 | 1670 | mg->mg_len = -1; |
c6496cc7 | 1671 | SvSCREAM_off(sv); |
93a17b20 LW |
1672 | return 0; |
1673 | } | |
1674 | ||
1675 | int | |
864dbfa3 | 1676 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1677 | { |
14befaf4 | 1678 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1679 | SvVALID_off(sv); |
1680 | return 0; | |
1681 | } | |
1682 | ||
1683 | int | |
864dbfa3 | 1684 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1685 | { |
14befaf4 | 1686 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1687 | SvCOMPILED_off(sv); |
1688 | return 0; | |
1689 | } | |
1690 | ||
1691 | int | |
864dbfa3 | 1692 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1693 | { |
1694 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1695 | ||
1696 | if (uf && uf->uf_set) | |
24f81a43 | 1697 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1698 | return 0; |
1699 | } | |
1700 | ||
c277df42 | 1701 | int |
864dbfa3 | 1702 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1703 | { |
1704 | regexp *re = (regexp *)mg->mg_obj; | |
1705 | ReREFCNT_dec(re); | |
1706 | return 0; | |
1707 | } | |
1708 | ||
7a4c00b4 | 1709 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1710 | int |
864dbfa3 | 1711 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1712 | { |
1713 | /* | |
838b5b74 | 1714 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1715 | * and vanished with a faint plop. |
1716 | */ | |
7a4c00b4 | 1717 | if (mg->mg_ptr) { |
1718 | Safefree(mg->mg_ptr); | |
1719 | mg->mg_ptr = NULL; | |
565764a8 | 1720 | mg->mg_len = -1; |
7a4c00b4 | 1721 | } |
bbce6d69 | 1722 | return 0; |
1723 | } | |
7a4c00b4 | 1724 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1725 | |
1726 | int | |
864dbfa3 | 1727 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1728 | { |
1729 | register char *s; | |
1730 | I32 i; | |
8990e307 | 1731 | STRLEN len; |
79072805 | 1732 | switch (*mg->mg_ptr) { |
748a9306 | 1733 | case '\001': /* ^A */ |
3280af22 | 1734 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1735 | break; |
49460fe6 NIS |
1736 | case '\003': /* ^C */ |
1737 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1738 | break; | |
1739 | ||
79072805 | 1740 | case '\004': /* ^D */ |
aea4f609 | 1741 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1742 | DEBUG_x(dump_all()); |
1743 | break; | |
28f23441 | 1744 | case '\005': /* ^E */ |
cd39f2b6 | 1745 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1746 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1747 | #else |
cd39f2b6 JH |
1748 | # ifdef VMS |
1749 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1750 | # else |
cd39f2b6 JH |
1751 | # ifdef WIN32 |
1752 | SetLastError( SvIV(sv) ); | |
1753 | # else | |
9fed8b87 IZ |
1754 | # ifdef OS2 |
1755 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1756 | # else | |
f86702cc | 1757 | /* will anyone ever use this? */ |
1758 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1759 | # endif |
048c1ddf IZ |
1760 | # endif |
1761 | # endif | |
22fae026 | 1762 | #endif |
28f23441 | 1763 | break; |
79072805 | 1764 | case '\006': /* ^F */ |
3280af22 | 1765 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1766 | break; |
a0d0e21e | 1767 | case '\010': /* ^H */ |
3280af22 | 1768 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1769 | break; |
9d116dd7 | 1770 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1771 | if (PL_inplace) |
1772 | Safefree(PL_inplace); | |
79072805 | 1773 | if (SvOK(sv)) |
2d8e6c8d | 1774 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1775 | else |
3280af22 | 1776 | PL_inplace = Nullch; |
79072805 | 1777 | break; |
28f23441 | 1778 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1779 | if (*(mg->mg_ptr+1) == '\0') { |
1780 | if (PL_osname) | |
1781 | Safefree(PL_osname); | |
1782 | if (SvOK(sv)) | |
1783 | PL_osname = savepv(SvPV(sv,len)); | |
1784 | else | |
1785 | PL_osname = Nullch; | |
1786 | } | |
1787 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1788 | if (!PL_compiling.cop_io) | |
1789 | PL_compiling.cop_io = newSVsv(sv); | |
1790 | else | |
1791 | sv_setsv(PL_compiling.cop_io,sv); | |
1792 | } | |
28f23441 | 1793 | break; |
79072805 | 1794 | case '\020': /* ^P */ |
3280af22 | 1795 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1796 | if (PL_perldb && !PL_DBsingle) |
1797 | init_debugger(); | |
79072805 LW |
1798 | break; |
1799 | case '\024': /* ^T */ | |
88e89b8a | 1800 | #ifdef BIG_TIME |
6b88bc9c | 1801 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1802 | #else |
3280af22 | 1803 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1804 | #endif |
79072805 | 1805 | break; |
46487f74 | 1806 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1807 | if (*(mg->mg_ptr+1) == '\0') { |
1808 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1809 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1810 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1811 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1812 | } |
599cee73 | 1813 | } |
6a818117 | 1814 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1815 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1816 | if (!SvPOK(sv) && PL_localizing) { |
1817 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1818 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1819 | break; |
1820 | } | |
f4fc7782 | 1821 | { |
b5477537 | 1822 | STRLEN len, i; |
d3a7d8c7 | 1823 | int accumulate = 0 ; |
f4fc7782 | 1824 | int any_fatals = 0 ; |
d3a7d8c7 | 1825 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1826 | for (i = 0 ; i < len ; ++i) { |
1827 | accumulate |= ptr[i] ; | |
1828 | any_fatals |= (ptr[i] & 0xAA) ; | |
1829 | } | |
d3a7d8c7 GS |
1830 | if (!accumulate) |
1831 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1832 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1833 | PL_compiling.cop_warnings = pWARN_ALL; | |
1834 | PL_dowarn |= G_WARN_ONCE ; | |
1835 | } | |
d3a7d8c7 GS |
1836 | else { |
1837 | if (specialWARN(PL_compiling.cop_warnings)) | |
1838 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1839 | else | |
1840 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1841 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1842 | PL_dowarn |= G_WARN_ONCE ; | |
1843 | } | |
f4fc7782 | 1844 | |
d3a7d8c7 | 1845 | } |
4438c4b7 | 1846 | } |
971a9dd3 | 1847 | } |
46487f74 GS |
1848 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1849 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1850 | break; |
1851 | case '.': | |
3280af22 NIS |
1852 | if (PL_localizing) { |
1853 | if (PL_localizing == 1) | |
7766f137 | 1854 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1855 | } |
3280af22 NIS |
1856 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1857 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1858 | break; |
1859 | case '^': | |
3280af22 | 1860 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1861 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1862 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1863 | break; |
1864 | case '~': | |
3280af22 | 1865 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1866 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1867 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1868 | break; |
1869 | case '=': | |
3280af22 | 1870 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1871 | break; |
1872 | case '-': | |
3280af22 NIS |
1873 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1874 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1875 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1876 | break; |
1877 | case '%': | |
3280af22 | 1878 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1879 | break; |
1880 | case '|': | |
4b65379b | 1881 | { |
3280af22 | 1882 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
1883 | if(!io) |
1884 | break; | |
4b65379b CS |
1885 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1886 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1887 | else { | |
1888 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1889 | PerlIO *ofp = IoOFP(io); | |
1890 | if (ofp) | |
1891 | (void)PerlIO_flush(ofp); | |
1892 | IoFLAGS(io) |= IOf_FLUSH; | |
1893 | } | |
1894 | } | |
79072805 LW |
1895 | } |
1896 | break; | |
1897 | case '*': | |
463ee0b2 | 1898 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1899 | PL_multiline = (i != 0); |
79072805 LW |
1900 | break; |
1901 | case '/': | |
3280af22 | 1902 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 1903 | PL_rs = newSVsv(sv); |
79072805 LW |
1904 | break; |
1905 | case '\\': | |
7889fe52 NIS |
1906 | if (PL_ors_sv) |
1907 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 1908 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 1909 | PL_ors_sv = newSVsv(sv); |
009c130f | 1910 | } |
e3c19b7b | 1911 | else { |
7889fe52 | 1912 | PL_ors_sv = Nullsv; |
e3c19b7b | 1913 | } |
79072805 LW |
1914 | break; |
1915 | case ',': | |
7889fe52 NIS |
1916 | if (PL_ofs_sv) |
1917 | SvREFCNT_dec(PL_ofs_sv); | |
1918 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1919 | PL_ofs_sv = newSVsv(sv); | |
1920 | } | |
1921 | else { | |
1922 | PL_ofs_sv = Nullsv; | |
1923 | } | |
79072805 LW |
1924 | break; |
1925 | case '#': | |
3280af22 NIS |
1926 | if (PL_ofmt) |
1927 | Safefree(PL_ofmt); | |
2d8e6c8d | 1928 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1929 | break; |
1930 | case '[': | |
3280af22 | 1931 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1932 | break; |
1933 | case '?': | |
ff0cee69 | 1934 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1935 | if (PL_localizing == 2) { |
1936 | PL_statusvalue = LvTARGOFF(sv); | |
1937 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1938 | } |
1939 | else | |
1940 | #endif | |
1941 | #ifdef VMSISH_STATUS | |
1942 | if (VMSISH_STATUS) | |
1943 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1944 | else | |
1945 | #endif | |
1946 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1947 | break; |
1948 | case '!': | |
91487cfc JH |
1949 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
1950 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1951 | break; |
1952 | case '<': | |
3280af22 NIS |
1953 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1954 | if (PL_delaymagic) { | |
1955 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1956 | break; /* don't do magic till later */ |
1957 | } | |
1958 | #ifdef HAS_SETRUID | |
b28d0864 | 1959 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1960 | #else |
1961 | #ifdef HAS_SETREUID | |
3280af22 | 1962 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1963 | #else |
85e6fe83 | 1964 | #ifdef HAS_SETRESUID |
b28d0864 | 1965 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1966 | #else |
b28d0864 NIS |
1967 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1968 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1969 | else { |
d8eceb89 | 1970 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1971 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1972 | } |
79072805 LW |
1973 | #endif |
1974 | #endif | |
85e6fe83 | 1975 | #endif |
d8eceb89 | 1976 | PL_uid = PerlProc_getuid(); |
3280af22 | 1977 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1978 | break; |
1979 | case '>': | |
3280af22 NIS |
1980 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1981 | if (PL_delaymagic) { | |
1982 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1983 | break; /* don't do magic till later */ |
1984 | } | |
1985 | #ifdef HAS_SETEUID | |
3280af22 | 1986 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1987 | #else |
1988 | #ifdef HAS_SETREUID | |
b28d0864 | 1989 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1990 | #else |
1991 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1992 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1993 | #else |
b28d0864 NIS |
1994 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1995 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1996 | else { |
e8ee3774 | 1997 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1998 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1999 | } |
79072805 LW |
2000 | #endif |
2001 | #endif | |
85e6fe83 | 2002 | #endif |
d8eceb89 | 2003 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2004 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2005 | break; |
2006 | case '(': | |
3280af22 NIS |
2007 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2008 | if (PL_delaymagic) { | |
2009 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2010 | break; /* don't do magic till later */ |
2011 | } | |
2012 | #ifdef HAS_SETRGID | |
b28d0864 | 2013 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2014 | #else |
2015 | #ifdef HAS_SETREGID | |
3280af22 | 2016 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2017 | #else |
2018 | #ifdef HAS_SETRESGID | |
b28d0864 | 2019 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2020 | #else |
b28d0864 NIS |
2021 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2022 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2023 | else { |
d8eceb89 | 2024 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2025 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2026 | } |
79072805 LW |
2027 | #endif |
2028 | #endif | |
85e6fe83 | 2029 | #endif |
d8eceb89 | 2030 | PL_gid = PerlProc_getgid(); |
3280af22 | 2031 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2032 | break; |
2033 | case ')': | |
5cd24f17 | 2034 | #ifdef HAS_SETGROUPS |
2035 | { | |
2d8e6c8d | 2036 | char *p = SvPV(sv, len); |
5cd24f17 | 2037 | Groups_t gary[NGROUPS]; |
2038 | ||
5cd24f17 | 2039 | while (isSPACE(*p)) |
2040 | ++p; | |
2d4389e4 | 2041 | PL_egid = Atol(p); |
5cd24f17 | 2042 | for (i = 0; i < NGROUPS; ++i) { |
2043 | while (*p && !isSPACE(*p)) | |
2044 | ++p; | |
2045 | while (isSPACE(*p)) | |
2046 | ++p; | |
2047 | if (!*p) | |
2048 | break; | |
2d4389e4 | 2049 | gary[i] = Atol(p); |
5cd24f17 | 2050 | } |
8cc95fdb | 2051 | if (i) |
2052 | (void)setgroups(i, gary); | |
5cd24f17 | 2053 | } |
2054 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2055 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2056 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2057 | if (PL_delaymagic) { |
2058 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2059 | break; /* don't do magic till later */ |
2060 | } | |
2061 | #ifdef HAS_SETEGID | |
3280af22 | 2062 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2063 | #else |
2064 | #ifdef HAS_SETREGID | |
b28d0864 | 2065 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2066 | #else |
2067 | #ifdef HAS_SETRESGID | |
b28d0864 | 2068 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2069 | #else |
b28d0864 NIS |
2070 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2071 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2072 | else { |
d8eceb89 | 2073 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2074 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2075 | } |
79072805 LW |
2076 | #endif |
2077 | #endif | |
85e6fe83 | 2078 | #endif |
d8eceb89 | 2079 | PL_egid = PerlProc_getegid(); |
3280af22 | 2080 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2081 | break; |
2082 | case ':': | |
2d8e6c8d | 2083 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2084 | break; |
cd39f2b6 | 2085 | #ifndef MACOS_TRADITIONAL |
79072805 | 2086 | case '0': |
4bc88a62 PS |
2087 | #ifdef HAS_SETPROCTITLE |
2088 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2089 | * show a string from the process struct and provide | |
2090 | * the setproctitle() routine to manipulate that. */ | |
2091 | { | |
2092 | s = SvPV(sv, len); | |
98b76f99 | 2093 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2094 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2095 | * but not the "(perl) suffix from the ps(1) |
2096 | * output, because that's what ps(1) shows if the | |
2097 | * argv[] is modified. */ | |
6f2ad931 | 2098 | setproctitle("-%s", s); |
9aad2c0e | 2099 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2100 | /* This doesn't really work if you assume that |
2101 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2102 | * because in ps(1) output the result will be like | |
2103 | * sprintf("perl: %s (perl)", s) | |
2104 | * I guess this is a security feature: | |
2105 | * one (a user process) cannot get rid of the original name. | |
2106 | * --jhi */ | |
2107 | setproctitle("%s", s); | |
2108 | # endif | |
2109 | } | |
2110 | #endif | |
3280af22 NIS |
2111 | if (!PL_origalen) { |
2112 | s = PL_origargv[0]; | |
79072805 LW |
2113 | s += strlen(s); |
2114 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2115 | for (i = 1; i < PL_origargc; i++) { |
2116 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2117 | #ifdef OS2 |
6b88bc9c | 2118 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2119 | #endif |
fb73857a | 2120 | ) |
379c4362 GS |
2121 | { |
2122 | ++s; | |
2123 | s += strlen(s); /* this one is ok too */ | |
2124 | } | |
fb73857a | 2125 | else |
2126 | break; | |
79072805 | 2127 | } |
bbce6d69 | 2128 | /* can grab env area too? */ |
764df951 | 2129 | if (PL_origenviron && (PL_origenviron[0] == s + 1)) { |
66b1d557 | 2130 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2131 | /* force copy of environment */ |
3280af22 | 2132 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2133 | if (PL_origenviron[i] == s + 1) { |
2134 | ++s; | |
2135 | s += strlen(s); | |
2136 | } | |
fb73857a | 2137 | else |
2138 | break; | |
79072805 | 2139 | } |
3280af22 | 2140 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2141 | } |
a0d0e21e | 2142 | s = SvPV_force(sv,len); |
8990e307 | 2143 | i = len; |
3280af22 NIS |
2144 | if (i >= PL_origalen) { |
2145 | i = PL_origalen; | |
fb73857a | 2146 | /* don't allow system to limit $0 seen by script */ |
2147 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2148 | Copy(s, PL_origargv[0], i, char); |
2149 | s = PL_origargv[0]+i; | |
fb73857a | 2150 | *s = '\0'; |
79072805 LW |
2151 | } |
2152 | else { | |
3280af22 NIS |
2153 | Copy(s, PL_origargv[0], i, char); |
2154 | s = PL_origargv[0]+i; | |
79072805 | 2155 | *s++ = '\0'; |
3280af22 | 2156 | while (++i < PL_origalen) |
8990e307 | 2157 | *s++ = ' '; |
3280af22 NIS |
2158 | s = PL_origargv[0]+i; |
2159 | for (i = 1; i < PL_origargc; i++) | |
2160 | PL_origargv[i] = Nullch; | |
79072805 LW |
2161 | } |
2162 | break; | |
cd39f2b6 | 2163 | #endif |
4d1ff10f | 2164 | #ifdef USE_5005THREADS |
a863c7d1 | 2165 | case '@': |
38a03e6e | 2166 | sv_setsv(thr->errsv, sv); |
a863c7d1 | 2167 | break; |
4d1ff10f | 2168 | #endif /* USE_5005THREADS */ |
79072805 LW |
2169 | } |
2170 | return 0; | |
2171 | } | |
2172 | ||
4d1ff10f | 2173 | #ifdef USE_5005THREADS |
f93b4edd | 2174 | int |
864dbfa3 | 2175 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2176 | { |
b900a521 JH |
2177 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2178 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
a674cc95 | 2179 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd | 2180 | if (MgOWNER(mg)) |
cea2e8a9 | 2181 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2182 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2183 | COND_DESTROY(MgCONDP(mg)); | |
2184 | return 0; | |
2185 | } | |
4d1ff10f | 2186 | #endif /* USE_5005THREADS */ |
f93b4edd | 2187 | |
79072805 | 2188 | I32 |
864dbfa3 | 2189 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2190 | { |
2191 | register char **sigv; | |
2192 | ||
22c35a8c | 2193 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2194 | if (strEQ(sig,*sigv)) |
22c35a8c | 2195 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2196 | #ifdef SIGCLD |
2197 | if (strEQ(sig,"CHLD")) | |
2198 | return SIGCLD; | |
2199 | #endif | |
2200 | #ifdef SIGCHLD | |
2201 | if (strEQ(sig,"CLD")) | |
2202 | return SIGCHLD; | |
2203 | #endif | |
2204 | return 0; | |
2205 | } | |
2206 | ||
df3728a2 | 2207 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2208 | static SV* sig_sv; |
df3728a2 | 2209 | #endif |
84902520 | 2210 | |
ecfc5424 | 2211 | Signal_t |
cea2e8a9 | 2212 | Perl_sighandler(int sig) |
79072805 | 2213 | { |
71d280e3 | 2214 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
acfe0abc | 2215 | dTHXa(PL_curinterp); /* fake TLS, because signals don't do TLS */ |
71d280e3 | 2216 | #else |
cea2e8a9 | 2217 | dTHX; |
71d280e3 | 2218 | #endif |
79072805 | 2219 | dSP; |
00d579c5 | 2220 | GV *gv = Nullgv; |
a0d0e21e | 2221 | HV *st; |
b7953727 | 2222 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2223 | CV *cv = Nullcv; |
533c011a | 2224 | OP *myop = PL_op; |
84902520 | 2225 | U32 flags = 0; |
3280af22 | 2226 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2227 | |
2228 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
acfe0abc | 2229 | PERL_SET_THX(aTHX); /* fake TLS, see above */ |
71d280e3 | 2230 | #endif |
ac27b0f5 | 2231 | |
3280af22 | 2232 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2233 | flags |= 1; |
3280af22 | 2234 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2235 | flags |= 4; |
3280af22 | 2236 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2237 | flags |= 8; |
3280af22 | 2238 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2239 | flags |= 16; |
2240 | ||
22c35a8c | 2241 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2242 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2243 | PL_sig_name[sig]); |
ff0cee69 | 2244 | |
84902520 TB |
2245 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2246 | infinity, so we fix 4 (in fact 5): */ | |
2247 | if (flags & 1) { | |
3280af22 | 2248 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2249 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2250 | } |
ac27b0f5 | 2251 | if (flags & 4) |
3280af22 | 2252 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2253 | if (flags & 8) { |
3280af22 NIS |
2254 | PL_retstack_ix++; |
2255 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2256 | } |
2257 | if (flags & 16) | |
3280af22 | 2258 | PL_scopestack_ix += 1; |
84902520 | 2259 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2260 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2261 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2262 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2263 | |
a0d0e21e | 2264 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2265 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2266 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2267 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2268 | : ((cv && CvGV(cv)) |
2269 | ? GvENAME(CvGV(cv)) | |
2270 | : "__ANON__"))); | |
2271 | goto cleanup; | |
79072805 LW |
2272 | } |
2273 | ||
22c35a8c GS |
2274 | if(PL_psig_name[sig]) { |
2275 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2276 | flags |= 64; |
df3728a2 | 2277 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2278 | sig_sv = sv; |
df3728a2 | 2279 | #endif |
84902520 | 2280 | } else { |
ff0cee69 | 2281 | sv = sv_newmortal(); |
22c35a8c | 2282 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2283 | } |
e336de0d | 2284 | |
e788e7d3 | 2285 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2286 | PUSHMARK(SP); |
79072805 | 2287 | PUSHs(sv); |
79072805 | 2288 | PUTBACK; |
a0d0e21e | 2289 | |
1b266415 | 2290 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2291 | |
d3acc0f7 | 2292 | POPSTACK; |
1b266415 | 2293 | if (SvTRUE(ERRSV)) { |
1d615522 | 2294 | #ifndef PERL_MICRO |
983dbef6 | 2295 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2296 | /* Handler "died", for example to get out of a restart-able read(). |
2297 | * Before we re-do that on its behalf re-enable the signal which was | |
2298 | * blocked by the system when we entered. | |
2299 | */ | |
2300 | sigset_t set; | |
2301 | sigemptyset(&set); | |
2302 | sigaddset(&set,sig); | |
2303 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2304 | #else | |
2305 | /* Not clear if this will work */ | |
2306 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2307 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2308 | #endif |
1d615522 | 2309 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2310 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2311 | } |
00d579c5 | 2312 | cleanup: |
84902520 | 2313 | if (flags & 1) |
3280af22 | 2314 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2315 | if (flags & 4) |
3280af22 | 2316 | PL_markstack_ptr--; |
ac27b0f5 | 2317 | if (flags & 8) |
3280af22 | 2318 | PL_retstack_ix--; |
84902520 | 2319 | if (flags & 16) |
3280af22 | 2320 | PL_scopestack_ix -= 1; |
84902520 TB |
2321 | if (flags & 64) |
2322 | SvREFCNT_dec(sv); | |
533c011a | 2323 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2324 | |
3280af22 NIS |
2325 | PL_Sv = tSv; /* Restore global temporaries. */ |
2326 | PL_Xpv = tXpv; | |
79072805 LW |
2327 | return; |
2328 | } | |
4e35701f NIS |
2329 | |
2330 | ||
51371543 | 2331 | static void |
acfe0abc | 2332 | restore_magic(pTHX_ void *p) |
51371543 | 2333 | { |
48944bdf | 2334 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2335 | SV* sv = mgs->mgs_sv; |
2336 | ||
2337 | if (!sv) | |
2338 | return; | |
2339 | ||
2340 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2341 | { | |
2342 | if (mgs->mgs_flags) | |
2343 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2344 | else | |
2345 | mg_magical(sv); | |
2346 | if (SvGMAGICAL(sv)) | |
2347 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2348 | } | |
2349 | ||
2350 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2351 | ||
2352 | /* If we're still on top of the stack, pop us off. (That condition | |
2353 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2354 | * if it's being called via leave_scope.) | |
2355 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2356 | * may leave alloc gunk on the savestack, and some code | |
2357 | * (e.g. sighandler) doesn't expect that... | |
2358 | */ | |
2359 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2360 | { | |
2361 | I32 popval = SSPOPINT; | |
c76ac1ee | 2362 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2363 | PL_savestack_ix -= 2; |
2364 | popval = SSPOPINT; | |
2365 | assert(popval == SAVEt_ALLOC); | |
2366 | popval = SSPOPINT; | |
2367 | PL_savestack_ix -= popval; | |
2368 | } | |
2369 | ||
2370 | } | |
2371 | ||
2372 | static void | |
acfe0abc | 2373 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2374 | { |
51371543 GS |
2375 | U32 flags = *(U32*)p; |
2376 | ||
2377 | if (flags & 1) | |
2378 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2379 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2380 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2381 | if (flags & 64) |
2382 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2383 | #endif |
51371543 | 2384 | } |