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