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 */ |
88e89b8a | 615 | #ifdef BIG_TIME |
6b88bc9c | 616 | sv_setnv(sv, PL_basetime); |
88e89b8a | 617 | #else |
3280af22 | 618 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 619 | #endif |
79072805 | 620 | break; |
46487f74 | 621 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
622 | if (*(mg->mg_ptr+1) == '\0') |
623 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 624 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
625 | if (PL_compiling.cop_warnings == pWARN_NONE || |
626 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
627 | { |
628 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
629 | } | |
d3a7d8c7 | 630 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 631 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 632 | } |
4438c4b7 JH |
633 | else { |
634 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 635 | } |
d3a7d8c7 | 636 | SvPOK_only(sv); |
4438c4b7 | 637 | } |
46487f74 GS |
638 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
639 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
640 | break; |
641 | case '1': case '2': case '3': case '4': | |
642 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 643 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
644 | I32 s1, t1; |
645 | ||
a863c7d1 MB |
646 | /* |
647 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
648 | * XXX Does the new way break anything? | |
649 | */ | |
ffc61ed2 | 650 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 651 | getparen: |
d9f97599 | 652 | if (paren <= rx->nparens && |
cf93c79d IZ |
653 | (s1 = rx->startp[paren]) != -1 && |
654 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 655 | { |
cf93c79d IZ |
656 | i = t1 - s1; |
657 | s = rx->subbeg + s1; | |
01ec43d0 | 658 | if (!rx->subbeg) |
c2e66d9e GS |
659 | break; |
660 | ||
13f57bf8 | 661 | getrx: |
748a9306 | 662 | if (i >= 0) { |
b7953727 | 663 | bool was_tainted = FALSE; |
3280af22 NIS |
664 | if (PL_tainting) { |
665 | was_tainted = PL_tainted; | |
666 | PL_tainted = FALSE; | |
13f57bf8 | 667 | } |
cf93c79d | 668 | sv_setpvn(sv, s, i); |
53c4c00c | 669 | if (PL_reg_match_utf8 && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
670 | SvUTF8_on(sv); |
671 | else | |
672 | SvUTF8_off(sv); | |
3280af22 NIS |
673 | if (PL_tainting) |
674 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
675 | break; |
676 | } | |
79072805 | 677 | } |
79072805 | 678 | } |
3280af22 | 679 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
680 | break; |
681 | case '+': | |
aaa362c4 | 682 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 683 | paren = rx->lastparen; |
a0d0e21e LW |
684 | if (paren) |
685 | goto getparen; | |
79072805 | 686 | } |
3280af22 | 687 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 688 | break; |
a01268b5 JH |
689 | case '\016': /* ^N */ |
690 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
691 | paren = rx->lastcloseparen; | |
692 | if (paren) | |
693 | goto getparen; | |
694 | } | |
695 | sv_setsv(sv,&PL_sv_undef); | |
696 | break; | |
79072805 | 697 | case '`': |
aaa362c4 | 698 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
699 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
700 | i = rx->startp[0]; | |
13f57bf8 | 701 | goto getrx; |
79072805 | 702 | } |
79072805 | 703 | } |
3280af22 | 704 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
705 | break; |
706 | case '\'': | |
aaa362c4 | 707 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
708 | if (rx->subbeg && rx->endp[0] != -1) { |
709 | s = rx->subbeg + rx->endp[0]; | |
710 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 711 | goto getrx; |
79072805 | 712 | } |
79072805 | 713 | } |
3280af22 | 714 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
715 | break; |
716 | case '.': | |
717 | #ifndef lint | |
3280af22 | 718 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 719 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
720 | } |
721 | #endif | |
722 | break; | |
723 | case '?': | |
809a5acc | 724 | { |
809a5acc | 725 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 726 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
727 | LvTARGOFF(sv) = PL_statusvalue; |
728 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 729 | #endif |
809a5acc | 730 | } |
79072805 LW |
731 | break; |
732 | case '^': | |
3280af22 | 733 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
734 | if (s) |
735 | sv_setpv(sv,s); | |
736 | else { | |
3280af22 | 737 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
738 | sv_catpv(sv,"_TOP"); |
739 | } | |
740 | break; | |
741 | case '~': | |
3280af22 | 742 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 743 | if (!s) |
3280af22 | 744 | s = GvENAME(PL_defoutgv); |
79072805 LW |
745 | sv_setpv(sv,s); |
746 | break; | |
747 | #ifndef lint | |
748 | case '=': | |
3280af22 | 749 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
750 | break; |
751 | case '-': | |
3280af22 | 752 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
753 | break; |
754 | case '%': | |
3280af22 | 755 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
756 | break; |
757 | #endif | |
758 | case ':': | |
759 | break; | |
760 | case '/': | |
761 | break; | |
762 | case '[': | |
3280af22 | 763 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
764 | break; |
765 | case '|': | |
3280af22 | 766 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
767 | break; |
768 | case ',': | |
79072805 LW |
769 | break; |
770 | case '\\': | |
79072805 LW |
771 | break; |
772 | case '#': | |
3280af22 | 773 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
774 | break; |
775 | case '!': | |
a5f75d66 | 776 | #ifdef VMS |
65202027 | 777 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 778 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 779 | #else |
88e89b8a | 780 | { |
781 | int saveerrno = errno; | |
65202027 | 782 | sv_setnv(sv, (NV)errno); |
88e89b8a | 783 | #ifdef OS2 |
ed344e4f IZ |
784 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
785 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 786 | else |
a5f75d66 | 787 | #endif |
2304df62 | 788 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 789 | errno = saveerrno; |
790 | } | |
791 | #endif | |
946ec16e | 792 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
793 | break; |
794 | case '<': | |
3280af22 | 795 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
796 | break; |
797 | case '>': | |
3280af22 | 798 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
799 | break; |
800 | case '(': | |
3280af22 | 801 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 802 | #ifdef HAS_GETGROUPS |
785fb66b | 803 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 804 | #endif |
79072805 LW |
805 | goto add_groups; |
806 | case ')': | |
3280af22 | 807 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 808 | #ifdef HAS_GETGROUPS |
785fb66b | 809 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 810 | #endif |
79072805 | 811 | add_groups: |
79072805 | 812 | #ifdef HAS_GETGROUPS |
79072805 | 813 | { |
a0d0e21e | 814 | Groups_t gary[NGROUPS]; |
79072805 | 815 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 816 | while (--i >= 0) |
785fb66b | 817 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
818 | } |
819 | #endif | |
155aba94 | 820 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
821 | break; |
822 | case '*': | |
823 | break; | |
cd39f2b6 | 824 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
825 | case '0': |
826 | break; | |
cd39f2b6 | 827 | #endif |
4d1ff10f | 828 | #ifdef USE_5005THREADS |
a863c7d1 | 829 | case '@': |
38a03e6e | 830 | sv_setsv(sv, thr->errsv); |
a863c7d1 | 831 | break; |
4d1ff10f | 832 | #endif /* USE_5005THREADS */ |
79072805 | 833 | } |
a0d0e21e | 834 | return 0; |
79072805 LW |
835 | } |
836 | ||
837 | int | |
864dbfa3 | 838 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
839 | { |
840 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
841 | ||
842 | if (uf && uf->uf_val) | |
24f81a43 | 843 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
844 | return 0; |
845 | } | |
846 | ||
847 | int | |
864dbfa3 | 848 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
849 | { |
850 | register char *s; | |
88e89b8a | 851 | char *ptr; |
5aabfad6 | 852 | STRLEN len, klen; |
a0d0e21e | 853 | I32 i; |
1e422769 | 854 | |
a0d0e21e | 855 | s = SvPV(sv,len); |
5aabfad6 | 856 | ptr = MgPV(mg,klen); |
88e89b8a | 857 | my_setenv(ptr, s); |
1e422769 | 858 | |
a0d0e21e LW |
859 | #ifdef DYNAMIC_ENV_FETCH |
860 | /* We just undefd an environment var. Is a replacement */ | |
861 | /* waiting in the wings? */ | |
862 | if (!len) { | |
5aabfad6 | 863 | SV **valp; |
6b88bc9c | 864 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 865 | s = SvPV(*valp, len); |
a0d0e21e LW |
866 | } |
867 | #endif | |
1e422769 | 868 | |
39e571d4 | 869 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
870 | /* And you'll never guess what the dog had */ |
871 | /* in its mouth... */ | |
3280af22 | 872 | if (PL_tainting) { |
1e422769 | 873 | MgTAINTEDDIR_off(mg); |
874 | #ifdef VMS | |
5aabfad6 | 875 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 876 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
877 | struct stat sbuf; | |
878 | int i = 0, j = 0; | |
879 | ||
880 | do { /* DCL$PATH may be a search list */ | |
881 | while (1) { /* as may dev portion of any element */ | |
882 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
883 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
884 | cando_by_name(S_IWUSR,0,elt) ) { | |
885 | MgTAINTEDDIR_on(mg); | |
886 | return 0; | |
887 | } | |
888 | } | |
889 | if ((cp = strchr(elt, ':')) != Nullch) | |
890 | *cp = '\0'; | |
891 | if (my_trnlnm(elt, eltbuf, j++)) | |
892 | elt = eltbuf; | |
893 | else | |
894 | break; | |
895 | } | |
896 | j = 0; | |
897 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
898 | } | |
899 | #endif /* VMS */ | |
5aabfad6 | 900 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 901 | char *strend = s + len; |
463ee0b2 LW |
902 | |
903 | while (s < strend) { | |
96827780 | 904 | char tmpbuf[256]; |
1e422769 | 905 | struct stat st; |
96827780 | 906 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 907 | s, strend, ':', &i); |
463ee0b2 | 908 | s++; |
96827780 MB |
909 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
910 | || *tmpbuf != '/' | |
c6ed36e1 | 911 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 912 | MgTAINTEDDIR_on(mg); |
1e422769 | 913 | return 0; |
914 | } | |
463ee0b2 | 915 | } |
79072805 LW |
916 | } |
917 | } | |
39e571d4 | 918 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 919 | |
79072805 LW |
920 | return 0; |
921 | } | |
922 | ||
923 | int | |
864dbfa3 | 924 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 925 | { |
2d8e6c8d GS |
926 | STRLEN n_a; |
927 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
928 | return 0; |
929 | } | |
930 | ||
88e89b8a | 931 | int |
864dbfa3 | 932 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 933 | { |
934 | #if defined(VMS) | |
cea2e8a9 | 935 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 936 | #else |
3280af22 | 937 | if (PL_localizing) { |
fb73857a | 938 | HE* entry; |
2d8e6c8d | 939 | STRLEN n_a; |
fb73857a | 940 | magic_clear_all_env(sv,mg); |
941 | hv_iterinit((HV*)sv); | |
155aba94 | 942 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 943 | I32 keylen; |
944 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 945 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 946 | } |
947 | } | |
948 | #endif | |
949 | return 0; | |
950 | } | |
951 | ||
952 | int | |
864dbfa3 | 953 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 954 | { |
ed79a026 | 955 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 956 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 957 | #else |
7766f137 GS |
958 | # ifdef PERL_IMPLICIT_SYS |
959 | PerlEnv_clearenv(); | |
960 | # else | |
961 | # ifdef WIN32 | |
3e3baf6d TB |
962 | char *envv = GetEnvironmentStrings(); |
963 | char *cur = envv; | |
964 | STRLEN len; | |
965 | while (*cur) { | |
966 | char *end = strchr(cur,'='); | |
967 | if (end && end != cur) { | |
968 | *end = '\0'; | |
969 | my_setenv(cur,Nullch); | |
970 | *end = '='; | |
ac5c734f | 971 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
972 | } |
973 | else if ((len = strlen(cur))) | |
974 | cur += len+1; | |
975 | } | |
976 | FreeEnvironmentStrings(envv); | |
7766f137 | 977 | # else |
5acaa6ec | 978 | #ifdef USE_ENVIRON_ARRAY |
7766f137 | 979 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
980 | I32 i; |
981 | ||
3280af22 | 982 | if (environ == PL_origenviron) |
f2517201 | 983 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
984 | else |
985 | for (i = 0; environ[i]; i++) | |
f2517201 | 986 | safesysfree(environ[i]); |
7766f137 | 987 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 988 | |
66b1d557 HM |
989 | environ[0] = Nullch; |
990 | ||
5acaa6ec | 991 | #endif /* USE_ENVIRON_ARRAY */ |
7766f137 GS |
992 | # endif /* WIN32 */ |
993 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 994 | #endif /* VMS */ |
3e3baf6d | 995 | return 0; |
66b1d557 HM |
996 | } |
997 | ||
64ca3a65 | 998 | #ifndef PERL_MICRO |
66b1d557 | 999 | int |
864dbfa3 | 1000 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1001 | { |
1002 | I32 i; | |
2d8e6c8d | 1003 | STRLEN n_a; |
88e89b8a | 1004 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1005 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1006 | if (i) { |
22c35a8c GS |
1007 | if(PL_psig_ptr[i]) |
1008 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1009 | else { |
ff68c719 | 1010 | Sighandler_t sigstate = rsignal_state(i); |
1011 | ||
88e89b8a | 1012 | /* cache state so we don't fetch it again */ |
ff68c719 | 1013 | if(sigstate == SIG_IGN) |
88e89b8a | 1014 | sv_setpv(sv,"IGNORE"); |
1015 | else | |
3280af22 | 1016 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1017 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1018 | SvTEMP_off(sv); |
1019 | } | |
1020 | } | |
1021 | return 0; | |
1022 | } | |
1023 | int | |
864dbfa3 | 1024 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1025 | { |
1026 | I32 i; | |
2d8e6c8d | 1027 | STRLEN n_a; |
88e89b8a | 1028 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 1029 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1030 | if (i) { |
22c35a8c GS |
1031 | if(PL_psig_ptr[i]) { |
1032 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1033 | PL_psig_ptr[i]=0; | |
88e89b8a | 1034 | } |
22c35a8c GS |
1035 | if(PL_psig_name[i]) { |
1036 | SvREFCNT_dec(PL_psig_name[i]); | |
1037 | PL_psig_name[i]=0; | |
88e89b8a | 1038 | } |
1039 | } | |
1040 | return 0; | |
1041 | } | |
3d37d572 | 1042 | |
0a8e0eff NIS |
1043 | void |
1044 | Perl_raise_signal(pTHX_ int sig) | |
1045 | { | |
1046 | /* Set a flag to say this signal is pending */ | |
1047 | PL_psig_pend[sig]++; | |
1048 | /* And one to say _a_ signal is pending */ | |
1049 | PL_sig_pending = 1; | |
1050 | } | |
1051 | ||
1052 | Signal_t | |
1053 | Perl_csighandler(int sig) | |
1054 | { | |
1055 | #ifdef PERL_OLD_SIGNALS | |
1056 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1057 | (*PL_sighandlerp)(sig); | |
1058 | #else | |
1059 | dTHX; | |
1060 | Perl_raise_signal(aTHX_ sig); | |
1061 | #endif | |
1062 | } | |
1063 | ||
1064 | void | |
1065 | Perl_despatch_signals(pTHX) | |
1066 | { | |
1067 | int sig; | |
1068 | PL_sig_pending = 0; | |
1069 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1070 | if (PL_psig_pend[sig]) { | |
1071 | PL_psig_pend[sig] = 0; | |
1072 | (*PL_sighandlerp)(sig); | |
1073 | } | |
1074 | } | |
1075 | } | |
1076 | ||
85e6fe83 | 1077 | int |
864dbfa3 | 1078 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1079 | { |
1080 | register char *s; | |
1081 | I32 i; | |
b7953727 | 1082 | SV** svp = 0; |
e72dc28c | 1083 | STRLEN len; |
a0d0e21e | 1084 | |
e72dc28c | 1085 | s = MgPV(mg,len); |
748a9306 LW |
1086 | if (*s == '_') { |
1087 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1088 | svp = &PL_diehook; |
748a9306 | 1089 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1090 | svp = &PL_warnhook; |
748a9306 | 1091 | else |
cea2e8a9 | 1092 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1093 | i = 0; |
4633a7c4 LW |
1094 | if (*svp) { |
1095 | SvREFCNT_dec(*svp); | |
1096 | *svp = 0; | |
1097 | } | |
748a9306 LW |
1098 | } |
1099 | else { | |
1100 | i = whichsig(s); /* ...no, a brick */ | |
1101 | if (!i) { | |
e476b1b5 | 1102 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1103 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1104 | return 0; |
1105 | } | |
22c35a8c GS |
1106 | SvREFCNT_dec(PL_psig_name[i]); |
1107 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1108 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1109 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1110 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1111 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1112 | } |
a0d0e21e | 1113 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1114 | if (i) |
0a8e0eff | 1115 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1116 | else |
1117 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1118 | return 0; |
1119 | } | |
e72dc28c | 1120 | s = SvPV_force(sv,len); |
748a9306 LW |
1121 | if (strEQ(s,"IGNORE")) { |
1122 | if (i) | |
ff68c719 | 1123 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1124 | else |
1125 | *svp = 0; | |
1126 | } | |
1127 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1128 | if (i) | |
ff68c719 | 1129 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1130 | else |
1131 | *svp = 0; | |
1132 | } | |
79072805 | 1133 | else { |
5aabfad6 | 1134 | /* |
1135 | * We should warn if HINT_STRICT_REFS, but without | |
1136 | * access to a known hint bit in a known OP, we can't | |
1137 | * tell whether HINT_STRICT_REFS is in force or not. | |
1138 | */ | |
46fc3d4c | 1139 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1140 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1141 | if (i) |
0a8e0eff | 1142 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1143 | else |
1144 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1145 | } |
1146 | return 0; | |
1147 | } | |
64ca3a65 | 1148 | #endif /* !PERL_MICRO */ |
79072805 LW |
1149 | |
1150 | int | |
864dbfa3 | 1151 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1152 | { |
3280af22 | 1153 | PL_sub_generation++; |
463ee0b2 LW |
1154 | return 0; |
1155 | } | |
1156 | ||
1157 | int | |
864dbfa3 | 1158 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1159 | { |
a0d0e21e | 1160 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1161 | PL_amagic_generation++; |
463ee0b2 | 1162 | |
a0d0e21e LW |
1163 | return 0; |
1164 | } | |
463ee0b2 | 1165 | |
946ec16e | 1166 | int |
864dbfa3 | 1167 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1168 | { |
1169 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1170 | I32 i = 0; |
497b47a8 | 1171 | |
6ff81951 | 1172 | if (hv) { |
497b47a8 JH |
1173 | (void) hv_iterinit(hv); |
1174 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1175 | i = HvKEYS(hv); | |
1176 | else { | |
1177 | while (hv_iternext(hv)) | |
1178 | i++; | |
1179 | } | |
6ff81951 GS |
1180 | } |
1181 | ||
1182 | sv_setiv(sv, (IV)i); | |
1183 | return 0; | |
1184 | } | |
1185 | ||
1186 | int | |
864dbfa3 | 1187 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1188 | { |
1189 | if (LvTARG(sv)) { | |
1190 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1191 | } |
1192 | return 0; | |
ac27b0f5 | 1193 | } |
946ec16e | 1194 | |
e336de0d | 1195 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1196 | STATIC int |
cea2e8a9 | 1197 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1198 | { |
1199 | dSP; | |
463ee0b2 | 1200 | |
924508f0 GS |
1201 | PUSHMARK(SP); |
1202 | EXTEND(SP, n); | |
33c27489 | 1203 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1204 | if (n > 1) { |
93965878 | 1205 | if (mg->mg_ptr) { |
565764a8 | 1206 | if (mg->mg_len >= 0) |
79cb57f6 | 1207 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1208 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1209 | PUSHs((SV*)mg->mg_ptr); |
1210 | } | |
14befaf4 | 1211 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1212 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1213 | } |
1214 | } | |
1215 | if (n > 2) { | |
1216 | PUSHs(val); | |
88e89b8a | 1217 | } |
463ee0b2 LW |
1218 | PUTBACK; |
1219 | ||
864dbfa3 | 1220 | return call_method(meth, flags); |
946ec16e | 1221 | } |
1222 | ||
76e3520e | 1223 | STATIC int |
cea2e8a9 | 1224 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1225 | { |
1226 | dSP; | |
463ee0b2 | 1227 | |
a0d0e21e LW |
1228 | ENTER; |
1229 | SAVETMPS; | |
e788e7d3 | 1230 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1231 | |
33c27489 | 1232 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1233 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1234 | } |
463ee0b2 | 1235 | |
d3acc0f7 | 1236 | POPSTACK; |
a0d0e21e LW |
1237 | FREETMPS; |
1238 | LEAVE; | |
1239 | return 0; | |
1240 | } | |
463ee0b2 | 1241 | |
a0d0e21e | 1242 | int |
864dbfa3 | 1243 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1244 | { |
1245 | magic_methpack(sv,mg,"FETCH"); | |
1246 | if (mg->mg_ptr) | |
1247 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1248 | return 0; |
1249 | } | |
1250 | ||
1251 | int | |
864dbfa3 | 1252 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1253 | { |
1254 | dSP; | |
a60c0954 | 1255 | ENTER; |
e788e7d3 | 1256 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1257 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1258 | POPSTACK; |
a60c0954 | 1259 | LEAVE; |
463ee0b2 LW |
1260 | return 0; |
1261 | } | |
1262 | ||
1263 | int | |
864dbfa3 | 1264 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1265 | { |
a0d0e21e LW |
1266 | return magic_methpack(sv,mg,"DELETE"); |
1267 | } | |
463ee0b2 | 1268 | |
93965878 NIS |
1269 | |
1270 | U32 | |
864dbfa3 | 1271 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1272 | { |
e336de0d | 1273 | dSP; |
93965878 NIS |
1274 | U32 retval = 0; |
1275 | ||
1276 | ENTER; | |
1277 | SAVETMPS; | |
e788e7d3 | 1278 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1279 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1280 | sv = *PL_stack_sp--; |
a60c0954 | 1281 | retval = (U32) SvIV(sv)-1; |
93965878 | 1282 | } |
d3acc0f7 | 1283 | POPSTACK; |
93965878 NIS |
1284 | FREETMPS; |
1285 | LEAVE; | |
1286 | return retval; | |
1287 | } | |
1288 | ||
cea2e8a9 GS |
1289 | int |
1290 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1291 | { |
1292 | dSP; | |
463ee0b2 | 1293 | |
e336de0d | 1294 | ENTER; |
e788e7d3 | 1295 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1296 | PUSHMARK(SP); |
33c27489 | 1297 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1298 | PUTBACK; |
864dbfa3 | 1299 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1300 | POPSTACK; |
a60c0954 | 1301 | LEAVE; |
463ee0b2 LW |
1302 | return 0; |
1303 | } | |
1304 | ||
1305 | int | |
864dbfa3 | 1306 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1307 | { |
463ee0b2 | 1308 | dSP; |
dff6d3cd | 1309 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1310 | |
1311 | ENTER; | |
a0d0e21e | 1312 | SAVETMPS; |
e788e7d3 | 1313 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1314 | PUSHMARK(SP); |
1315 | EXTEND(SP, 2); | |
33c27489 | 1316 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1317 | if (SvOK(key)) |
1318 | PUSHs(key); | |
1319 | PUTBACK; | |
1320 | ||
864dbfa3 | 1321 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1322 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1323 | |
d3acc0f7 | 1324 | POPSTACK; |
a0d0e21e LW |
1325 | FREETMPS; |
1326 | LEAVE; | |
79072805 LW |
1327 | return 0; |
1328 | } | |
1329 | ||
1330 | int | |
864dbfa3 | 1331 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1332 | { |
1333 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1334 | } |
a0d0e21e LW |
1335 | |
1336 | int | |
864dbfa3 | 1337 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1338 | { |
1339 | OP *o; | |
1340 | I32 i; | |
1341 | GV* gv; | |
1342 | SV** svp; | |
2d8e6c8d | 1343 | STRLEN n_a; |
79072805 | 1344 | |
3280af22 | 1345 | gv = PL_DBline; |
79072805 | 1346 | i = SvTRUE(sv); |
188ea221 | 1347 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1348 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1349 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1350 | o->op_private = i; |
79072805 LW |
1351 | return 0; |
1352 | } | |
1353 | ||
1354 | int | |
864dbfa3 | 1355 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1356 | { |
3280af22 | 1357 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1358 | return 0; |
1359 | } | |
1360 | ||
1361 | int | |
864dbfa3 | 1362 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1363 | { |
3280af22 | 1364 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1365 | return 0; |
1366 | } | |
1367 | ||
1368 | int | |
864dbfa3 | 1369 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1370 | { |
1371 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1372 | |
a0d0e21e | 1373 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1374 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1375 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1376 | I32 i = mg->mg_len; |
7e2040f0 | 1377 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1378 | sv_pos_b2u(lsv, &i); |
1379 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1380 | return 0; |
1381 | } | |
1382 | } | |
1383 | (void)SvOK_off(sv); | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | int | |
864dbfa3 | 1388 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1389 | { |
1390 | SV* lsv = LvTARG(sv); | |
1391 | SSize_t pos; | |
1392 | STRLEN len; | |
c00206c8 | 1393 | STRLEN ulen = 0; |
a0d0e21e LW |
1394 | |
1395 | mg = 0; | |
ac27b0f5 | 1396 | |
a0d0e21e | 1397 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1398 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1399 | if (!mg) { |
1400 | if (!SvOK(sv)) | |
1401 | return 0; | |
14befaf4 DM |
1402 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1403 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1404 | } |
1405 | else if (!SvOK(sv)) { | |
565764a8 | 1406 | mg->mg_len = -1; |
a0d0e21e LW |
1407 | return 0; |
1408 | } | |
1409 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1410 | ||
c485e607 | 1411 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1412 | |
7e2040f0 | 1413 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1414 | ulen = sv_len_utf8(lsv); |
1415 | if (ulen) | |
1416 | len = ulen; | |
a0ed51b3 LW |
1417 | } |
1418 | ||
a0d0e21e LW |
1419 | if (pos < 0) { |
1420 | pos += len; | |
1421 | if (pos < 0) | |
1422 | pos = 0; | |
1423 | } | |
1424 | else if (pos > len) | |
1425 | pos = len; | |
a0ed51b3 LW |
1426 | |
1427 | if (ulen) { | |
1428 | I32 p = pos; | |
1429 | sv_pos_u2b(lsv, &p, 0); | |
1430 | pos = p; | |
1431 | } | |
1432 | ||
565764a8 | 1433 | mg->mg_len = pos; |
71be2cbc | 1434 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1435 | |
79072805 LW |
1436 | return 0; |
1437 | } | |
1438 | ||
1439 | int | |
864dbfa3 | 1440 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1441 | { |
8646b087 | 1442 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1443 | SvFAKE_off(sv); | |
946ec16e | 1444 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1445 | SvFAKE_on(sv); |
1446 | } | |
1447 | else | |
946ec16e | 1448 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1449 | return 0; |
1450 | } | |
1451 | ||
1452 | int | |
864dbfa3 | 1453 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1454 | { |
1455 | register char *s; | |
1456 | GV* gv; | |
2d8e6c8d | 1457 | STRLEN n_a; |
79072805 LW |
1458 | |
1459 | if (!SvOK(sv)) | |
1460 | return 0; | |
2d8e6c8d | 1461 | s = SvPV(sv, n_a); |
79072805 LW |
1462 | if (*s == '*' && s[1]) |
1463 | s++; | |
85e6fe83 | 1464 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1465 | if (sv == (SV*)gv) |
1466 | return 0; | |
1467 | if (GvGP(sv)) | |
88e89b8a | 1468 | gp_free((GV*)sv); |
79072805 | 1469 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1470 | return 0; |
1471 | } | |
1472 | ||
1473 | int | |
864dbfa3 | 1474 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1475 | { |
1476 | STRLEN len; | |
1477 | SV *lsv = LvTARG(sv); | |
1478 | char *tmps = SvPV(lsv,len); | |
1479 | I32 offs = LvTARGOFF(sv); | |
1480 | I32 rem = LvTARGLEN(sv); | |
1481 | ||
9aa983d2 JH |
1482 | if (SvUTF8(lsv)) |
1483 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1484 | if (offs > len) |
1485 | offs = len; | |
1486 | if (rem + offs > len) | |
1487 | rem = len - offs; | |
1488 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1489 | if (SvUTF8(lsv)) |
2ef4b674 | 1490 | SvUTF8_on(sv); |
6ff81951 GS |
1491 | return 0; |
1492 | } | |
1493 | ||
1494 | int | |
864dbfa3 | 1495 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1496 | { |
9aa983d2 JH |
1497 | STRLEN len; |
1498 | char *tmps = SvPV(sv, len); | |
1499 | SV *lsv = LvTARG(sv); | |
1500 | I32 lvoff = LvTARGOFF(sv); | |
1501 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1502 | |
1aa99e6b | 1503 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1504 | sv_utf8_upgrade(lsv); |
1505 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1506 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1507 | SvUTF8_on(lsv); | |
1508 | } | |
1509 | else if (SvUTF8(lsv)) { | |
1510 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
e95af362 | 1511 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1512 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1513 | Safefree(tmps); | |
1aa99e6b IH |
1514 | } |
1515 | else | |
9aa983d2 | 1516 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1517 | |
79072805 LW |
1518 | return 0; |
1519 | } | |
1520 | ||
1521 | int | |
864dbfa3 | 1522 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1523 | { |
565764a8 | 1524 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1525 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1526 | return 0; |
1527 | } | |
1528 | ||
1529 | int | |
864dbfa3 | 1530 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1531 | { |
3280af22 NIS |
1532 | if (PL_localizing) { |
1533 | if (PL_localizing == 1) | |
565764a8 | 1534 | mg->mg_len <<= 1; |
748a9306 | 1535 | else |
565764a8 | 1536 | mg->mg_len >>= 1; |
a0d0e21e | 1537 | } |
3280af22 | 1538 | else if (PL_tainted) |
565764a8 | 1539 | mg->mg_len |= 1; |
748a9306 | 1540 | else |
565764a8 | 1541 | mg->mg_len &= ~1; |
463ee0b2 LW |
1542 | return 0; |
1543 | } | |
1544 | ||
1545 | int | |
864dbfa3 | 1546 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1547 | { |
1548 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1549 | |
1550 | if (!lsv) { | |
155aba94 | 1551 | (void)SvOK_off(sv); |
6ff81951 GS |
1552 | return 0; |
1553 | } | |
6ff81951 | 1554 | |
81e118e0 | 1555 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1556 | return 0; |
1557 | } | |
1558 | ||
1559 | int | |
864dbfa3 | 1560 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1561 | { |
1562 | do_vecset(sv); /* XXX slurp this routine */ | |
1563 | return 0; | |
1564 | } | |
1565 | ||
1566 | int | |
864dbfa3 | 1567 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1568 | { |
71be2cbc | 1569 | SV *targ = Nullsv; |
5f05dabc | 1570 | if (LvTARGLEN(sv)) { |
68dc0745 | 1571 | if (mg->mg_obj) { |
74e13ce4 GS |
1572 | SV *ahv = LvTARG(sv); |
1573 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1574 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1575 | if (he) | |
1576 | targ = HeVAL(he); | |
1577 | } | |
1578 | else { | |
1579 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1580 | if (svp) | |
1581 | targ = *svp; | |
1582 | } | |
68dc0745 | 1583 | } |
1584 | else { | |
3c78fafa | 1585 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1586 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1587 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1588 | } | |
3280af22 | 1589 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1590 | /* somebody else defined it for us */ |
1591 | SvREFCNT_dec(LvTARG(sv)); | |
1592 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1593 | LvTARGLEN(sv) = 0; | |
1594 | SvREFCNT_dec(mg->mg_obj); | |
1595 | mg->mg_obj = Nullsv; | |
1596 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1597 | } | |
5f05dabc | 1598 | } |
71be2cbc | 1599 | else |
1600 | targ = LvTARG(sv); | |
3280af22 | 1601 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1602 | return 0; |
1603 | } | |
1604 | ||
1605 | int | |
864dbfa3 | 1606 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1607 | { |
1608 | if (LvTARGLEN(sv)) | |
68dc0745 | 1609 | vivify_defelem(sv); |
1610 | if (LvTARG(sv)) { | |
5f05dabc | 1611 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1612 | SvSETMAGIC(LvTARG(sv)); |
1613 | } | |
5f05dabc | 1614 | return 0; |
1615 | } | |
1616 | ||
71be2cbc | 1617 | void |
864dbfa3 | 1618 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1619 | { |
74e13ce4 GS |
1620 | MAGIC *mg; |
1621 | SV *value = Nullsv; | |
71be2cbc | 1622 | |
14befaf4 | 1623 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1624 | return; |
68dc0745 | 1625 | if (mg->mg_obj) { |
74e13ce4 | 1626 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1627 | STRLEN n_a; |
74e13ce4 | 1628 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1629 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1630 | if (he) |
1631 | value = HeVAL(he); | |
1632 | } | |
1633 | else { | |
af7f9c15 | 1634 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1635 | if (svp) |
1636 | value = *svp; | |
1637 | } | |
3280af22 | 1638 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1639 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1640 | } |
68dc0745 | 1641 | else { |
1642 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1643 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1644 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1645 | else { | |
1646 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1647 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1648 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1649 | } |
1650 | } | |
3e3baf6d | 1651 | (void)SvREFCNT_inc(value); |
68dc0745 | 1652 | SvREFCNT_dec(LvTARG(sv)); |
1653 | LvTARG(sv) = value; | |
71be2cbc | 1654 | LvTARGLEN(sv) = 0; |
68dc0745 | 1655 | SvREFCNT_dec(mg->mg_obj); |
1656 | mg->mg_obj = Nullsv; | |
1657 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1658 | } |
1659 | ||
1660 | int | |
864dbfa3 | 1661 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1662 | { |
1663 | AV *av = (AV*)mg->mg_obj; | |
1664 | SV **svp = AvARRAY(av); | |
1665 | I32 i = AvFILLp(av); | |
1666 | while (i >= 0) { | |
1667 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1668 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1669 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1670 | /* XXX Should we check that it hasn't changed? */ |
1671 | SvRV(svp[i]) = 0; | |
155aba94 | 1672 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1673 | SvWEAKREF_off(svp[i]); |
1674 | svp[i] = &PL_sv_undef; | |
1675 | } | |
1676 | i--; | |
1677 | } | |
1678 | return 0; | |
1679 | } | |
1680 | ||
1681 | int | |
864dbfa3 | 1682 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1683 | { |
565764a8 | 1684 | mg->mg_len = -1; |
c6496cc7 | 1685 | SvSCREAM_off(sv); |
93a17b20 LW |
1686 | return 0; |
1687 | } | |
1688 | ||
1689 | int | |
864dbfa3 | 1690 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1691 | { |
14befaf4 | 1692 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1693 | SvVALID_off(sv); |
1694 | return 0; | |
1695 | } | |
1696 | ||
1697 | int | |
864dbfa3 | 1698 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1699 | { |
14befaf4 | 1700 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1701 | SvCOMPILED_off(sv); |
1702 | return 0; | |
1703 | } | |
1704 | ||
1705 | int | |
864dbfa3 | 1706 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1707 | { |
1708 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1709 | ||
1710 | if (uf && uf->uf_set) | |
24f81a43 | 1711 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1712 | return 0; |
1713 | } | |
1714 | ||
c277df42 | 1715 | int |
864dbfa3 | 1716 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1717 | { |
1718 | regexp *re = (regexp *)mg->mg_obj; | |
1719 | ReREFCNT_dec(re); | |
1720 | return 0; | |
1721 | } | |
1722 | ||
7a4c00b4 | 1723 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1724 | int |
864dbfa3 | 1725 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1726 | { |
1727 | /* | |
838b5b74 | 1728 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1729 | * and vanished with a faint plop. |
1730 | */ | |
7a4c00b4 | 1731 | if (mg->mg_ptr) { |
1732 | Safefree(mg->mg_ptr); | |
1733 | mg->mg_ptr = NULL; | |
565764a8 | 1734 | mg->mg_len = -1; |
7a4c00b4 | 1735 | } |
bbce6d69 | 1736 | return 0; |
1737 | } | |
7a4c00b4 | 1738 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1739 | |
1740 | int | |
864dbfa3 | 1741 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1742 | { |
1743 | register char *s; | |
1744 | I32 i; | |
8990e307 | 1745 | STRLEN len; |
79072805 | 1746 | switch (*mg->mg_ptr) { |
748a9306 | 1747 | case '\001': /* ^A */ |
3280af22 | 1748 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1749 | break; |
49460fe6 NIS |
1750 | case '\003': /* ^C */ |
1751 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1752 | break; | |
1753 | ||
79072805 | 1754 | case '\004': /* ^D */ |
aea4f609 | 1755 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1756 | DEBUG_x(dump_all()); |
1757 | break; | |
28f23441 | 1758 | case '\005': /* ^E */ |
cd39f2b6 | 1759 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1760 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1761 | #else |
cd39f2b6 JH |
1762 | # ifdef VMS |
1763 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1764 | # else |
cd39f2b6 JH |
1765 | # ifdef WIN32 |
1766 | SetLastError( SvIV(sv) ); | |
1767 | # else | |
9fed8b87 IZ |
1768 | # ifdef OS2 |
1769 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1770 | # else | |
f86702cc | 1771 | /* will anyone ever use this? */ |
1772 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1773 | # endif |
048c1ddf IZ |
1774 | # endif |
1775 | # endif | |
22fae026 | 1776 | #endif |
28f23441 | 1777 | break; |
79072805 | 1778 | case '\006': /* ^F */ |
3280af22 | 1779 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1780 | break; |
a0d0e21e | 1781 | case '\010': /* ^H */ |
3280af22 | 1782 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1783 | break; |
9d116dd7 | 1784 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1785 | if (PL_inplace) |
1786 | Safefree(PL_inplace); | |
79072805 | 1787 | if (SvOK(sv)) |
2d8e6c8d | 1788 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1789 | else |
3280af22 | 1790 | PL_inplace = Nullch; |
79072805 | 1791 | break; |
28f23441 | 1792 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1793 | if (*(mg->mg_ptr+1) == '\0') { |
1794 | if (PL_osname) | |
1795 | Safefree(PL_osname); | |
1796 | if (SvOK(sv)) | |
1797 | PL_osname = savepv(SvPV(sv,len)); | |
1798 | else | |
1799 | PL_osname = Nullch; | |
1800 | } | |
1801 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1802 | if (!PL_compiling.cop_io) | |
1803 | PL_compiling.cop_io = newSVsv(sv); | |
1804 | else | |
1805 | sv_setsv(PL_compiling.cop_io,sv); | |
1806 | } | |
28f23441 | 1807 | break; |
79072805 | 1808 | case '\020': /* ^P */ |
3280af22 | 1809 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1810 | if (PL_perldb && !PL_DBsingle) |
1811 | init_debugger(); | |
79072805 LW |
1812 | break; |
1813 | case '\024': /* ^T */ | |
88e89b8a | 1814 | #ifdef BIG_TIME |
6b88bc9c | 1815 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1816 | #else |
3280af22 | 1817 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1818 | #endif |
79072805 | 1819 | break; |
46487f74 | 1820 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1821 | if (*(mg->mg_ptr+1) == '\0') { |
1822 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1823 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1824 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1825 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1826 | } |
599cee73 | 1827 | } |
6a818117 | 1828 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1829 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1830 | if (!SvPOK(sv) && PL_localizing) { |
1831 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1832 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1833 | break; |
1834 | } | |
f4fc7782 | 1835 | { |
b5477537 | 1836 | STRLEN len, i; |
d3a7d8c7 | 1837 | int accumulate = 0 ; |
f4fc7782 | 1838 | int any_fatals = 0 ; |
d3a7d8c7 | 1839 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1840 | for (i = 0 ; i < len ; ++i) { |
1841 | accumulate |= ptr[i] ; | |
1842 | any_fatals |= (ptr[i] & 0xAA) ; | |
1843 | } | |
d3a7d8c7 GS |
1844 | if (!accumulate) |
1845 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1846 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1847 | PL_compiling.cop_warnings = pWARN_ALL; | |
1848 | PL_dowarn |= G_WARN_ONCE ; | |
1849 | } | |
d3a7d8c7 GS |
1850 | else { |
1851 | if (specialWARN(PL_compiling.cop_warnings)) | |
1852 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1853 | else | |
1854 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1855 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1856 | PL_dowarn |= G_WARN_ONCE ; | |
1857 | } | |
f4fc7782 | 1858 | |
d3a7d8c7 | 1859 | } |
4438c4b7 | 1860 | } |
971a9dd3 | 1861 | } |
46487f74 GS |
1862 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1863 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1864 | break; |
1865 | case '.': | |
3280af22 NIS |
1866 | if (PL_localizing) { |
1867 | if (PL_localizing == 1) | |
7766f137 | 1868 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1869 | } |
3280af22 NIS |
1870 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1871 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1872 | break; |
1873 | case '^': | |
3280af22 | 1874 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1875 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1876 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1877 | break; |
1878 | case '~': | |
3280af22 | 1879 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1880 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1881 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1882 | break; |
1883 | case '=': | |
3280af22 | 1884 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1885 | break; |
1886 | case '-': | |
3280af22 NIS |
1887 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1888 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1889 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1890 | break; |
1891 | case '%': | |
3280af22 | 1892 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1893 | break; |
1894 | case '|': | |
4b65379b | 1895 | { |
3280af22 | 1896 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1897 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1898 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1899 | else { | |
1900 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1901 | PerlIO *ofp = IoOFP(io); | |
1902 | if (ofp) | |
1903 | (void)PerlIO_flush(ofp); | |
1904 | IoFLAGS(io) |= IOf_FLUSH; | |
1905 | } | |
1906 | } | |
79072805 LW |
1907 | } |
1908 | break; | |
1909 | case '*': | |
463ee0b2 | 1910 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1911 | PL_multiline = (i != 0); |
79072805 LW |
1912 | break; |
1913 | case '/': | |
3280af22 NIS |
1914 | SvREFCNT_dec(PL_nrs); |
1915 | PL_nrs = newSVsv(sv); | |
1916 | SvREFCNT_dec(PL_rs); | |
1917 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1918 | break; |
1919 | case '\\': | |
7889fe52 NIS |
1920 | if (PL_ors_sv) |
1921 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 1922 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 1923 | PL_ors_sv = newSVsv(sv); |
009c130f | 1924 | } |
e3c19b7b | 1925 | else { |
7889fe52 | 1926 | PL_ors_sv = Nullsv; |
e3c19b7b | 1927 | } |
79072805 LW |
1928 | break; |
1929 | case ',': | |
7889fe52 NIS |
1930 | if (PL_ofs_sv) |
1931 | SvREFCNT_dec(PL_ofs_sv); | |
1932 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1933 | PL_ofs_sv = newSVsv(sv); | |
1934 | } | |
1935 | else { | |
1936 | PL_ofs_sv = Nullsv; | |
1937 | } | |
79072805 LW |
1938 | break; |
1939 | case '#': | |
3280af22 NIS |
1940 | if (PL_ofmt) |
1941 | Safefree(PL_ofmt); | |
2d8e6c8d | 1942 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1943 | break; |
1944 | case '[': | |
3280af22 | 1945 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1946 | break; |
1947 | case '?': | |
ff0cee69 | 1948 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1949 | if (PL_localizing == 2) { |
1950 | PL_statusvalue = LvTARGOFF(sv); | |
1951 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1952 | } |
1953 | else | |
1954 | #endif | |
1955 | #ifdef VMSISH_STATUS | |
1956 | if (VMSISH_STATUS) | |
1957 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1958 | else | |
1959 | #endif | |
1960 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1961 | break; |
1962 | case '!': | |
78987ded | 1963 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1964 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1965 | break; |
1966 | case '<': | |
3280af22 NIS |
1967 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1968 | if (PL_delaymagic) { | |
1969 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1970 | break; /* don't do magic till later */ |
1971 | } | |
1972 | #ifdef HAS_SETRUID | |
b28d0864 | 1973 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1974 | #else |
1975 | #ifdef HAS_SETREUID | |
3280af22 | 1976 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1977 | #else |
85e6fe83 | 1978 | #ifdef HAS_SETRESUID |
b28d0864 | 1979 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1980 | #else |
b28d0864 NIS |
1981 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1982 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1983 | else { |
d8eceb89 | 1984 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1985 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1986 | } |
79072805 LW |
1987 | #endif |
1988 | #endif | |
85e6fe83 | 1989 | #endif |
d8eceb89 | 1990 | PL_uid = PerlProc_getuid(); |
3280af22 | 1991 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1992 | break; |
1993 | case '>': | |
3280af22 NIS |
1994 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1995 | if (PL_delaymagic) { | |
1996 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1997 | break; /* don't do magic till later */ |
1998 | } | |
1999 | #ifdef HAS_SETEUID | |
3280af22 | 2000 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2001 | #else |
2002 | #ifdef HAS_SETREUID | |
b28d0864 | 2003 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2004 | #else |
2005 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2006 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2007 | #else |
b28d0864 NIS |
2008 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2009 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2010 | else { |
e8ee3774 | 2011 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2012 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2013 | } |
79072805 LW |
2014 | #endif |
2015 | #endif | |
85e6fe83 | 2016 | #endif |
d8eceb89 | 2017 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2018 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2019 | break; |
2020 | case '(': | |
3280af22 NIS |
2021 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2022 | if (PL_delaymagic) { | |
2023 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2024 | break; /* don't do magic till later */ |
2025 | } | |
2026 | #ifdef HAS_SETRGID | |
b28d0864 | 2027 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2028 | #else |
2029 | #ifdef HAS_SETREGID | |
3280af22 | 2030 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2031 | #else |
2032 | #ifdef HAS_SETRESGID | |
b28d0864 | 2033 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2034 | #else |
b28d0864 NIS |
2035 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2036 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2037 | else { |
d8eceb89 | 2038 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2039 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2040 | } |
79072805 LW |
2041 | #endif |
2042 | #endif | |
85e6fe83 | 2043 | #endif |
d8eceb89 | 2044 | PL_gid = PerlProc_getgid(); |
3280af22 | 2045 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2046 | break; |
2047 | case ')': | |
5cd24f17 | 2048 | #ifdef HAS_SETGROUPS |
2049 | { | |
2d8e6c8d | 2050 | char *p = SvPV(sv, len); |
5cd24f17 | 2051 | Groups_t gary[NGROUPS]; |
2052 | ||
5cd24f17 | 2053 | while (isSPACE(*p)) |
2054 | ++p; | |
2d4389e4 | 2055 | PL_egid = Atol(p); |
5cd24f17 | 2056 | for (i = 0; i < NGROUPS; ++i) { |
2057 | while (*p && !isSPACE(*p)) | |
2058 | ++p; | |
2059 | while (isSPACE(*p)) | |
2060 | ++p; | |
2061 | if (!*p) | |
2062 | break; | |
2d4389e4 | 2063 | gary[i] = Atol(p); |
5cd24f17 | 2064 | } |
8cc95fdb | 2065 | if (i) |
2066 | (void)setgroups(i, gary); | |
5cd24f17 | 2067 | } |
2068 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2069 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2070 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2071 | if (PL_delaymagic) { |
2072 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2073 | break; /* don't do magic till later */ |
2074 | } | |
2075 | #ifdef HAS_SETEGID | |
3280af22 | 2076 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2077 | #else |
2078 | #ifdef HAS_SETREGID | |
b28d0864 | 2079 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2080 | #else |
2081 | #ifdef HAS_SETRESGID | |
b28d0864 | 2082 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2083 | #else |
b28d0864 NIS |
2084 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2085 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2086 | else { |
d8eceb89 | 2087 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2088 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2089 | } |
79072805 LW |
2090 | #endif |
2091 | #endif | |
85e6fe83 | 2092 | #endif |
d8eceb89 | 2093 | PL_egid = PerlProc_getegid(); |
3280af22 | 2094 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2095 | break; |
2096 | case ':': | |
2d8e6c8d | 2097 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2098 | break; |
cd39f2b6 | 2099 | #ifndef MACOS_TRADITIONAL |
79072805 | 2100 | case '0': |
4bc88a62 PS |
2101 | #ifdef HAS_SETPROCTITLE |
2102 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2103 | * show a string from the process struct and provide | |
2104 | * the setproctitle() routine to manipulate that. */ | |
2105 | { | |
2106 | s = SvPV(sv, len); | |
98b76f99 | 2107 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2108 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2109 | * but not the "(perl) suffix from the ps(1) |
2110 | * output, because that's what ps(1) shows if the | |
2111 | * argv[] is modified. */ | |
6f2ad931 | 2112 | setproctitle("-%s", s); |
9aad2c0e | 2113 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2114 | /* This doesn't really work if you assume that |
2115 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2116 | * because in ps(1) output the result will be like | |
2117 | * sprintf("perl: %s (perl)", s) | |
2118 | * I guess this is a security feature: | |
2119 | * one (a user process) cannot get rid of the original name. | |
2120 | * --jhi */ | |
2121 | setproctitle("%s", s); | |
2122 | # endif | |
2123 | } | |
2124 | #endif | |
3280af22 NIS |
2125 | if (!PL_origalen) { |
2126 | s = PL_origargv[0]; | |
79072805 LW |
2127 | s += strlen(s); |
2128 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2129 | for (i = 1; i < PL_origargc; i++) { |
2130 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2131 | #ifdef OS2 |
6b88bc9c | 2132 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2133 | #endif |
fb73857a | 2134 | ) |
379c4362 GS |
2135 | { |
2136 | ++s; | |
2137 | s += strlen(s); /* this one is ok too */ | |
2138 | } | |
fb73857a | 2139 | else |
2140 | break; | |
79072805 | 2141 | } |
bbce6d69 | 2142 | /* can grab env area too? */ |
764df951 | 2143 | if (PL_origenviron && (PL_origenviron[0] == s + 1)) { |
66b1d557 | 2144 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2145 | /* force copy of environment */ |
3280af22 | 2146 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2147 | if (PL_origenviron[i] == s + 1) { |
2148 | ++s; | |
2149 | s += strlen(s); | |
2150 | } | |
fb73857a | 2151 | else |
2152 | break; | |
79072805 | 2153 | } |
3280af22 | 2154 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2155 | } |
a0d0e21e | 2156 | s = SvPV_force(sv,len); |
8990e307 | 2157 | i = len; |
3280af22 NIS |
2158 | if (i >= PL_origalen) { |
2159 | i = PL_origalen; | |
fb73857a | 2160 | /* don't allow system to limit $0 seen by script */ |
2161 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2162 | Copy(s, PL_origargv[0], i, char); |
2163 | s = PL_origargv[0]+i; | |
fb73857a | 2164 | *s = '\0'; |
79072805 LW |
2165 | } |
2166 | else { | |
3280af22 NIS |
2167 | Copy(s, PL_origargv[0], i, char); |
2168 | s = PL_origargv[0]+i; | |
79072805 | 2169 | *s++ = '\0'; |
3280af22 | 2170 | while (++i < PL_origalen) |
8990e307 | 2171 | *s++ = ' '; |
3280af22 NIS |
2172 | s = PL_origargv[0]+i; |
2173 | for (i = 1; i < PL_origargc; i++) | |
2174 | PL_origargv[i] = Nullch; | |
79072805 LW |
2175 | } |
2176 | break; | |
cd39f2b6 | 2177 | #endif |
4d1ff10f | 2178 | #ifdef USE_5005THREADS |
a863c7d1 | 2179 | case '@': |
38a03e6e | 2180 | sv_setsv(thr->errsv, sv); |
a863c7d1 | 2181 | break; |
4d1ff10f | 2182 | #endif /* USE_5005THREADS */ |
79072805 LW |
2183 | } |
2184 | return 0; | |
2185 | } | |
2186 | ||
4d1ff10f | 2187 | #ifdef USE_5005THREADS |
f93b4edd | 2188 | int |
864dbfa3 | 2189 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2190 | { |
b900a521 JH |
2191 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2192 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
a674cc95 | 2193 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd | 2194 | if (MgOWNER(mg)) |
cea2e8a9 | 2195 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2196 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2197 | COND_DESTROY(MgCONDP(mg)); | |
2198 | return 0; | |
2199 | } | |
4d1ff10f | 2200 | #endif /* USE_5005THREADS */ |
f93b4edd | 2201 | |
79072805 | 2202 | I32 |
864dbfa3 | 2203 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2204 | { |
2205 | register char **sigv; | |
2206 | ||
22c35a8c | 2207 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2208 | if (strEQ(sig,*sigv)) |
22c35a8c | 2209 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2210 | #ifdef SIGCLD |
2211 | if (strEQ(sig,"CHLD")) | |
2212 | return SIGCLD; | |
2213 | #endif | |
2214 | #ifdef SIGCHLD | |
2215 | if (strEQ(sig,"CLD")) | |
2216 | return SIGCHLD; | |
2217 | #endif | |
2218 | return 0; | |
2219 | } | |
2220 | ||
84902520 TB |
2221 | static SV* sig_sv; |
2222 | ||
ecfc5424 | 2223 | Signal_t |
cea2e8a9 | 2224 | Perl_sighandler(int sig) |
79072805 | 2225 | { |
71d280e3 | 2226 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
acfe0abc | 2227 | dTHXa(PL_curinterp); /* fake TLS, because signals don't do TLS */ |
71d280e3 | 2228 | #else |
cea2e8a9 | 2229 | dTHX; |
71d280e3 | 2230 | #endif |
79072805 | 2231 | dSP; |
00d579c5 | 2232 | GV *gv = Nullgv; |
a0d0e21e | 2233 | HV *st; |
b7953727 | 2234 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2235 | CV *cv = Nullcv; |
533c011a | 2236 | OP *myop = PL_op; |
84902520 | 2237 | U32 flags = 0; |
3280af22 | 2238 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2239 | |
2240 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
acfe0abc | 2241 | PERL_SET_THX(aTHX); /* fake TLS, see above */ |
71d280e3 | 2242 | #endif |
ac27b0f5 | 2243 | |
3280af22 | 2244 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2245 | flags |= 1; |
3280af22 | 2246 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2247 | flags |= 4; |
3280af22 | 2248 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2249 | flags |= 8; |
3280af22 | 2250 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2251 | flags |= 16; |
2252 | ||
22c35a8c | 2253 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2254 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2255 | PL_sig_name[sig]); |
ff0cee69 | 2256 | |
84902520 TB |
2257 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2258 | infinity, so we fix 4 (in fact 5): */ | |
2259 | if (flags & 1) { | |
3280af22 | 2260 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2261 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2262 | } |
ac27b0f5 | 2263 | if (flags & 4) |
3280af22 | 2264 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2265 | if (flags & 8) { |
3280af22 NIS |
2266 | PL_retstack_ix++; |
2267 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2268 | } |
2269 | if (flags & 16) | |
3280af22 | 2270 | PL_scopestack_ix += 1; |
84902520 | 2271 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2272 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2273 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2274 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2275 | |
a0d0e21e | 2276 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2277 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2278 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2279 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2280 | : ((cv && CvGV(cv)) |
2281 | ? GvENAME(CvGV(cv)) | |
2282 | : "__ANON__"))); | |
2283 | goto cleanup; | |
79072805 LW |
2284 | } |
2285 | ||
22c35a8c GS |
2286 | if(PL_psig_name[sig]) { |
2287 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2288 | flags |= 64; |
2289 | sig_sv = sv; | |
2290 | } else { | |
ff0cee69 | 2291 | sv = sv_newmortal(); |
22c35a8c | 2292 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2293 | } |
e336de0d | 2294 | |
e788e7d3 | 2295 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2296 | PUSHMARK(SP); |
79072805 | 2297 | PUSHs(sv); |
79072805 | 2298 | PUTBACK; |
a0d0e21e | 2299 | |
1b266415 | 2300 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2301 | |
d3acc0f7 | 2302 | POPSTACK; |
1b266415 | 2303 | if (SvTRUE(ERRSV)) { |
1d615522 | 2304 | #ifndef PERL_MICRO |
983dbef6 | 2305 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2306 | /* Handler "died", for example to get out of a restart-able read(). |
2307 | * Before we re-do that on its behalf re-enable the signal which was | |
2308 | * blocked by the system when we entered. | |
2309 | */ | |
2310 | sigset_t set; | |
2311 | sigemptyset(&set); | |
2312 | sigaddset(&set,sig); | |
2313 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2314 | #else | |
2315 | /* Not clear if this will work */ | |
2316 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2317 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2318 | #endif |
1d615522 | 2319 | #endif /* !PERL_MICRO */ |
1b266415 NIS |
2320 | Perl_die(aTHX_ Nullch); |
2321 | } | |
00d579c5 | 2322 | cleanup: |
84902520 | 2323 | if (flags & 1) |
3280af22 | 2324 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2325 | if (flags & 4) |
3280af22 | 2326 | PL_markstack_ptr--; |
ac27b0f5 | 2327 | if (flags & 8) |
3280af22 | 2328 | PL_retstack_ix--; |
84902520 | 2329 | if (flags & 16) |
3280af22 | 2330 | PL_scopestack_ix -= 1; |
84902520 TB |
2331 | if (flags & 64) |
2332 | SvREFCNT_dec(sv); | |
533c011a | 2333 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2334 | |
3280af22 NIS |
2335 | PL_Sv = tSv; /* Restore global temporaries. */ |
2336 | PL_Xpv = tXpv; | |
79072805 LW |
2337 | return; |
2338 | } | |
4e35701f NIS |
2339 | |
2340 | ||
51371543 | 2341 | static void |
acfe0abc | 2342 | restore_magic(pTHX_ void *p) |
51371543 | 2343 | { |
48944bdf | 2344 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2345 | SV* sv = mgs->mgs_sv; |
2346 | ||
2347 | if (!sv) | |
2348 | return; | |
2349 | ||
2350 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2351 | { | |
2352 | if (mgs->mgs_flags) | |
2353 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2354 | else | |
2355 | mg_magical(sv); | |
2356 | if (SvGMAGICAL(sv)) | |
2357 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2358 | } | |
2359 | ||
2360 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2361 | ||
2362 | /* If we're still on top of the stack, pop us off. (That condition | |
2363 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2364 | * if it's being called via leave_scope.) | |
2365 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2366 | * may leave alloc gunk on the savestack, and some code | |
2367 | * (e.g. sighandler) doesn't expect that... | |
2368 | */ | |
2369 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2370 | { | |
2371 | I32 popval = SSPOPINT; | |
c76ac1ee | 2372 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2373 | PL_savestack_ix -= 2; |
2374 | popval = SSPOPINT; | |
2375 | assert(popval == SAVEt_ALLOC); | |
2376 | popval = SSPOPINT; | |
2377 | PL_savestack_ix -= popval; | |
2378 | } | |
2379 | ||
2380 | } | |
2381 | ||
2382 | static void | |
acfe0abc | 2383 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2384 | { |
51371543 GS |
2385 | U32 flags = *(U32*)p; |
2386 | ||
2387 | if (flags & 1) | |
2388 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2389 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2390 | if (flags & 64) | |
2391 | SvREFCNT_dec(sig_sv); | |
2392 | } |