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 | ||
23ada85b | 28 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 29 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 30 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 31 | #endif |
2e34cc90 CL |
32 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
33 | #if defined(KILL_BY_SIGPRC) | |
34 | # define FAKE_DEFAULT_SIGNAL_HANDLERS | |
35 | #endif | |
85b332e2 | 36 | |
acfe0abc GS |
37 | static void restore_magic(pTHX_ void *p); |
38 | static void unwind_handler_stack(pTHX_ void *p); | |
51371543 | 39 | |
c07a80fd | 40 | /* |
41 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
42 | */ | |
43 | ||
44 | struct magic_state { | |
45 | SV* mgs_sv; | |
46 | U32 mgs_flags; | |
455ece5e | 47 | I32 mgs_ss_ix; |
c07a80fd | 48 | }; |
455ece5e | 49 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
50 | |
51 | STATIC void | |
8fb26106 | 52 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 53 | { |
455ece5e | 54 | MGS* mgs; |
c07a80fd | 55 | assert(SvMAGICAL(sv)); |
56 | ||
685f876f | 57 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
58 | |
59 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 60 | mgs->mgs_sv = sv; |
61 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 62 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 63 | |
64 | SvMAGICAL_off(sv); | |
65 | SvREADONLY_off(sv); | |
06759ea0 | 66 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 67 | } |
68 | ||
954c1994 GS |
69 | /* |
70 | =for apidoc mg_magical | |
71 | ||
72 | Turns on the magical status of an SV. See C<sv_magic>. | |
73 | ||
74 | =cut | |
75 | */ | |
76 | ||
8990e307 | 77 | void |
864dbfa3 | 78 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
79 | { |
80 | MAGIC* mg; | |
81 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
82 | MGVTBL* vtbl = mg->mg_virtual; | |
83 | if (vtbl) { | |
2b260de0 | 84 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
85 | SvGMAGICAL_on(sv); |
86 | if (vtbl->svt_set) | |
87 | SvSMAGICAL_on(sv); | |
2b260de0 | 88 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
89 | SvRMAGICAL_on(sv); |
90 | } | |
91 | } | |
92 | } | |
93 | ||
954c1994 GS |
94 | /* |
95 | =for apidoc mg_get | |
96 | ||
97 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
98 | ||
99 | =cut | |
100 | */ | |
101 | ||
79072805 | 102 | int |
864dbfa3 | 103 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 104 | { |
ff76feab AMS |
105 | int new = 0; |
106 | MAGIC *newmg, *head, *cur, *mg; | |
107 | I32 mgs_ix = SSNEW(sizeof(MGS)); | |
463ee0b2 | 108 | |
455ece5e | 109 | save_magic(mgs_ix, sv); |
463ee0b2 | 110 | |
ff76feab AMS |
111 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
112 | list of magic. svt_get() may delete the current entry, add new | |
113 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
114 | ||
115 | newmg = cur = head = mg = SvMAGIC(sv); | |
116 | while (mg) { | |
117 | MGVTBL *vtbl = mg->mg_virtual; | |
118 | ||
2b260de0 | 119 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 120 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
ff76feab AMS |
121 | /* Don't restore the flags for this entry if it was deleted. */ |
122 | if (mg->mg_flags & MGf_GSKIP) | |
123 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 124 | } |
ff76feab AMS |
125 | |
126 | mg = mg->mg_moremagic; | |
127 | ||
128 | if (new) { | |
129 | /* Have we finished with the new entries we saw? Start again | |
130 | where we left off (unless there are more new entries). */ | |
131 | if (mg == head) { | |
132 | new = 0; | |
133 | mg = cur; | |
134 | head = newmg; | |
135 | } | |
136 | } | |
137 | ||
138 | /* Were any new entries added? */ | |
139 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
140 | new = 1; | |
141 | cur = mg; | |
142 | mg = newmg; | |
760ac839 | 143 | } |
79072805 | 144 | } |
463ee0b2 | 145 | |
acfe0abc | 146 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
147 | return 0; |
148 | } | |
149 | ||
954c1994 GS |
150 | /* |
151 | =for apidoc mg_set | |
152 | ||
153 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
154 | ||
155 | =cut | |
156 | */ | |
157 | ||
79072805 | 158 | int |
864dbfa3 | 159 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 160 | { |
8fb26106 | 161 | I32 mgs_ix; |
79072805 | 162 | MAGIC* mg; |
463ee0b2 LW |
163 | MAGIC* nextmg; |
164 | ||
455ece5e AD |
165 | mgs_ix = SSNEW(sizeof(MGS)); |
166 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
167 | |
168 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 169 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 170 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
171 | if (mg->mg_flags & MGf_GSKIP) { |
172 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 173 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 174 | } |
2b260de0 | 175 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 176 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 177 | } |
463ee0b2 | 178 | |
acfe0abc | 179 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
180 | return 0; |
181 | } | |
182 | ||
954c1994 GS |
183 | /* |
184 | =for apidoc mg_length | |
185 | ||
186 | Report on the SV's length. See C<sv_magic>. | |
187 | ||
188 | =cut | |
189 | */ | |
190 | ||
79072805 | 191 | U32 |
864dbfa3 | 192 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
193 | { |
194 | MAGIC* mg; | |
463ee0b2 | 195 | STRLEN len; |
463ee0b2 | 196 | |
79072805 LW |
197 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
198 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 199 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 200 | I32 mgs_ix; |
48e43a1c | 201 | |
455ece5e AD |
202 | mgs_ix = SSNEW(sizeof(MGS)); |
203 | save_magic(mgs_ix, sv); | |
a0d0e21e | 204 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 205 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 206 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
207 | return len; |
208 | } | |
209 | } | |
210 | ||
5636d518 DB |
211 | if (DO_UTF8(sv)) |
212 | { | |
213 | U8 *s = (U8*)SvPV(sv, len); | |
214 | len = Perl_utf8_length(aTHX_ s, s + len); | |
215 | } | |
216 | else | |
217 | (void)SvPV(sv, len); | |
463ee0b2 | 218 | return len; |
79072805 LW |
219 | } |
220 | ||
8fb26106 | 221 | I32 |
864dbfa3 | 222 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
223 | { |
224 | MAGIC* mg; | |
225 | I32 len; | |
ac27b0f5 | 226 | |
93965878 NIS |
227 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
228 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 229 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 230 | I32 mgs_ix; |
455ece5e AD |
231 | |
232 | mgs_ix = SSNEW(sizeof(MGS)); | |
233 | save_magic(mgs_ix, sv); | |
93965878 | 234 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 235 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 236 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
237 | return len; |
238 | } | |
239 | } | |
240 | ||
241 | switch(SvTYPE(sv)) { | |
242 | case SVt_PVAV: | |
243 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
244 | return len; | |
245 | case SVt_PVHV: | |
246 | /* FIXME */ | |
247 | default: | |
cea2e8a9 | 248 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
249 | break; |
250 | } | |
251 | return 0; | |
252 | } | |
253 | ||
954c1994 GS |
254 | /* |
255 | =for apidoc mg_clear | |
256 | ||
257 | Clear something magical that the SV represents. See C<sv_magic>. | |
258 | ||
259 | =cut | |
260 | */ | |
261 | ||
79072805 | 262 | int |
864dbfa3 | 263 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 264 | { |
8fb26106 | 265 | I32 mgs_ix; |
79072805 | 266 | MAGIC* mg; |
463ee0b2 | 267 | |
455ece5e AD |
268 | mgs_ix = SSNEW(sizeof(MGS)); |
269 | save_magic(mgs_ix, sv); | |
463ee0b2 | 270 | |
79072805 LW |
271 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
272 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
273 | /* omit GSKIP -- never set here */ |
274 | ||
2b260de0 | 275 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 276 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 277 | } |
463ee0b2 | 278 | |
acfe0abc | 279 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
280 | return 0; |
281 | } | |
282 | ||
954c1994 GS |
283 | /* |
284 | =for apidoc mg_find | |
285 | ||
286 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
287 | ||
288 | =cut | |
289 | */ | |
290 | ||
93a17b20 | 291 | MAGIC* |
864dbfa3 | 292 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
293 | { |
294 | MAGIC* mg; | |
3f8f4626 DC |
295 | if (!sv) |
296 | return 0; | |
93a17b20 LW |
297 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
298 | if (mg->mg_type == type) | |
299 | return mg; | |
300 | } | |
301 | return 0; | |
302 | } | |
303 | ||
954c1994 GS |
304 | /* |
305 | =for apidoc mg_copy | |
306 | ||
307 | Copies the magic from one SV to another. See C<sv_magic>. | |
308 | ||
309 | =cut | |
310 | */ | |
311 | ||
79072805 | 312 | int |
864dbfa3 | 313 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 314 | { |
463ee0b2 | 315 | int count = 0; |
79072805 | 316 | MAGIC* mg; |
463ee0b2 LW |
317 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
318 | if (isUPPER(mg->mg_type)) { | |
33c27489 | 319 | sv_magic(nsv, |
14befaf4 DM |
320 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
321 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
322 | ? sv : mg->mg_obj, | |
33c27489 | 323 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 324 | count++; |
79072805 | 325 | } |
79072805 | 326 | } |
463ee0b2 | 327 | return count; |
79072805 LW |
328 | } |
329 | ||
954c1994 GS |
330 | /* |
331 | =for apidoc mg_free | |
332 | ||
333 | Free any magic storage used by the SV. See C<sv_magic>. | |
334 | ||
335 | =cut | |
336 | */ | |
337 | ||
79072805 | 338 | int |
864dbfa3 | 339 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
340 | { |
341 | MAGIC* mg; | |
342 | MAGIC* moremagic; | |
343 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
344 | MGVTBL* vtbl = mg->mg_virtual; | |
345 | moremagic = mg->mg_moremagic; | |
2b260de0 | 346 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 347 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 348 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 | 349 | if (mg->mg_len >= 0) |
88e89b8a | 350 | Safefree(mg->mg_ptr); |
565764a8 | 351 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 352 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 353 | } |
85e6fe83 | 354 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 355 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
356 | Safefree(mg); |
357 | } | |
358 | SvMAGIC(sv) = 0; | |
359 | return 0; | |
360 | } | |
361 | ||
d460ef45 | 362 | |
79072805 LW |
363 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
364 | #include <signal.h> | |
365 | #endif | |
366 | ||
942e002e | 367 | U32 |
864dbfa3 | 368 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 369 | { |
6cef1e77 | 370 | register REGEXP *rx; |
6cef1e77 | 371 | |
aaa362c4 | 372 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
373 | if (mg->mg_obj) /* @+ */ |
374 | return rx->nparens; | |
375 | else /* @- */ | |
376 | return rx->lastparen; | |
377 | } | |
ac27b0f5 | 378 | |
942e002e | 379 | return (U32)-1; |
6cef1e77 IZ |
380 | } |
381 | ||
382 | int | |
864dbfa3 | 383 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 384 | { |
6cef1e77 | 385 | register I32 paren; |
cf93c79d | 386 | register I32 s; |
6cef1e77 IZ |
387 | register I32 i; |
388 | register REGEXP *rx; | |
cf93c79d | 389 | I32 t; |
6cef1e77 | 390 | |
aaa362c4 | 391 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
392 | paren = mg->mg_len; |
393 | if (paren < 0) | |
394 | return 0; | |
395 | if (paren <= rx->nparens && | |
cf93c79d IZ |
396 | (s = rx->startp[paren]) != -1 && |
397 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
398 | { |
399 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 400 | i = t; |
6cef1e77 | 401 | else /* @- */ |
cf93c79d | 402 | i = s; |
1aa99e6b | 403 | |
53c4c00c | 404 | if (i > 0 && PL_reg_match_utf8) { |
1aa99e6b | 405 | char *b = rx->subbeg; |
0064a8a9 JH |
406 | if (b) |
407 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 408 | } |
0064a8a9 JH |
409 | |
410 | sv_setiv(sv, i); | |
6cef1e77 IZ |
411 | } |
412 | } | |
413 | return 0; | |
414 | } | |
415 | ||
e4b89193 | 416 | int |
a29d06ed MG |
417 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
418 | { | |
a29d06ed | 419 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
420 | /* NOT REACHED */ |
421 | return 0; | |
a29d06ed MG |
422 | } |
423 | ||
93a17b20 | 424 | U32 |
864dbfa3 | 425 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
426 | { |
427 | register I32 paren; | |
93a17b20 | 428 | register I32 i; |
d9f97599 | 429 | register REGEXP *rx; |
a197cbdd | 430 | I32 s1, t1; |
93a17b20 LW |
431 | |
432 | switch (*mg->mg_ptr) { | |
433 | case '1': case '2': case '3': case '4': | |
434 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 435 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 436 | |
ffc61ed2 | 437 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 438 | getparen: |
d9f97599 | 439 | if (paren <= rx->nparens && |
cf93c79d IZ |
440 | (s1 = rx->startp[paren]) != -1 && |
441 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 442 | { |
cf93c79d | 443 | i = t1 - s1; |
a197cbdd | 444 | getlen: |
53c4c00c | 445 | if (i > 0 && PL_reg_match_utf8) { |
ffc61ed2 | 446 | char *s = rx->subbeg + s1; |
a197cbdd | 447 | char *send = rx->subbeg + t1; |
ffc61ed2 | 448 | |
60425c38 JH |
449 | i = t1 - s1; |
450 | if (is_utf8_string((U8*)s, i)) | |
451 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 452 | } |
ffc61ed2 | 453 | if (i < 0) |
0844c848 | 454 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 455 | return i; |
93a17b20 | 456 | } |
93a17b20 | 457 | } |
748a9306 | 458 | return 0; |
93a17b20 | 459 | case '+': |
aaa362c4 | 460 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 461 | paren = rx->lastparen; |
13f57bf8 CS |
462 | if (paren) |
463 | goto getparen; | |
93a17b20 | 464 | } |
748a9306 | 465 | return 0; |
a01268b5 JH |
466 | case '\016': /* ^N */ |
467 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
468 | paren = rx->lastcloseparen; | |
469 | if (paren) | |
470 | goto getparen; | |
471 | } | |
472 | return 0; | |
93a17b20 | 473 | case '`': |
aaa362c4 | 474 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
475 | if (rx->startp[0] != -1) { |
476 | i = rx->startp[0]; | |
a197cbdd GS |
477 | if (i > 0) { |
478 | s1 = 0; | |
479 | t1 = i; | |
480 | goto getlen; | |
481 | } | |
93a17b20 | 482 | } |
93a17b20 | 483 | } |
748a9306 | 484 | return 0; |
93a17b20 | 485 | case '\'': |
aaa362c4 | 486 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
487 | if (rx->endp[0] != -1) { |
488 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
489 | if (i > 0) { |
490 | s1 = rx->endp[0]; | |
491 | t1 = rx->sublen; | |
492 | goto getlen; | |
493 | } | |
93a17b20 | 494 | } |
93a17b20 | 495 | } |
748a9306 | 496 | return 0; |
93a17b20 LW |
497 | } |
498 | magic_get(sv,mg); | |
2d8e6c8d GS |
499 | if (!SvPOK(sv) && SvNIOK(sv)) { |
500 | STRLEN n_a; | |
501 | sv_2pv(sv, &n_a); | |
502 | } | |
93a17b20 LW |
503 | if (SvPOK(sv)) |
504 | return SvCUR(sv); | |
505 | return 0; | |
506 | } | |
507 | ||
79072805 | 508 | int |
864dbfa3 | 509 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
510 | { |
511 | register I32 paren; | |
512 | register char *s; | |
513 | register I32 i; | |
d9f97599 | 514 | register REGEXP *rx; |
79072805 LW |
515 | |
516 | switch (*mg->mg_ptr) { | |
748a9306 | 517 | case '\001': /* ^A */ |
3280af22 | 518 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 519 | break; |
49460fe6 NIS |
520 | case '\003': /* ^C */ |
521 | sv_setiv(sv, (IV)PL_minus_c); | |
522 | break; | |
523 | ||
79072805 | 524 | case '\004': /* ^D */ |
aea4f609 | 525 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 526 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 527 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 528 | #endif |
79072805 | 529 | break; |
28f23441 | 530 | case '\005': /* ^E */ |
0a378802 | 531 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 532 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
533 | { |
534 | char msg[256]; | |
ac27b0f5 | 535 | |
0a378802 JH |
536 | sv_setnv(sv,(double)gMacPerl_OSErr); |
537 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
538 | } | |
cd39f2b6 | 539 | #else |
28f23441 | 540 | #ifdef VMS |
0a378802 JH |
541 | { |
542 | # include <descrip.h> | |
543 | # include <starlet.h> | |
544 | char msg[255]; | |
545 | $DESCRIPTOR(msgdsc,msg); | |
546 | sv_setnv(sv,(NV) vaxc$errno); | |
547 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
548 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
549 | else | |
550 | sv_setpv(sv,""); | |
551 | } | |
28f23441 | 552 | #else |
88e89b8a | 553 | #ifdef OS2 |
0a378802 JH |
554 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
555 | sv_setnv(sv, (NV)errno); | |
556 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
557 | } else { | |
558 | if (errno != errno_isOS2) { | |
559 | int tmp = _syserrno(); | |
560 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
561 | Perl_rc = tmp; | |
562 | } | |
563 | sv_setnv(sv, (NV)Perl_rc); | |
564 | sv_setpv(sv, os2error(Perl_rc)); | |
565 | } | |
88e89b8a | 566 | #else |
22fae026 | 567 | #ifdef WIN32 |
0a378802 JH |
568 | { |
569 | DWORD dwErr = GetLastError(); | |
570 | sv_setnv(sv, (NV)dwErr); | |
571 | if (dwErr) | |
572 | { | |
573 | PerlProc_GetOSError(sv, dwErr); | |
574 | } | |
575 | else | |
576 | sv_setpv(sv, ""); | |
577 | SetLastError(dwErr); | |
578 | } | |
22fae026 | 579 | #else |
0a378802 JH |
580 | sv_setnv(sv, (NV)errno); |
581 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
28f23441 | 582 | #endif |
88e89b8a | 583 | #endif |
22fae026 | 584 | #endif |
cd39f2b6 | 585 | #endif |
0a378802 JH |
586 | SvNOK_on(sv); /* what a wonderful hack! */ |
587 | } | |
588 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
589 | sv_setsv(sv, PL_encoding); | |
590 | break; | |
79072805 | 591 | case '\006': /* ^F */ |
3280af22 | 592 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 593 | break; |
a0d0e21e | 594 | case '\010': /* ^H */ |
3280af22 | 595 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 596 | break; |
9d116dd7 | 597 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
598 | if (PL_inplace) |
599 | sv_setpv(sv, PL_inplace); | |
79072805 | 600 | else |
3280af22 | 601 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 602 | break; |
ac27b0f5 NIS |
603 | case '\017': /* ^O & ^OPEN */ |
604 | if (*(mg->mg_ptr+1) == '\0') | |
605 | sv_setpv(sv, PL_osname); | |
606 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
607 | if (!PL_compiling.cop_io) | |
608 | sv_setsv(sv, &PL_sv_undef); | |
609 | else { | |
610 | sv_setsv(sv, PL_compiling.cop_io); | |
611 | } | |
612 | } | |
28f23441 | 613 | break; |
79072805 | 614 | case '\020': /* ^P */ |
3280af22 | 615 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 616 | break; |
fb73857a | 617 | case '\023': /* ^S */ |
d58bf5aa | 618 | { |
3280af22 | 619 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 620 | (void)SvOK_off(sv); |
3280af22 | 621 | else if (PL_in_eval) |
6dc8a9e4 | 622 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
623 | else |
624 | sv_setiv(sv, 0); | |
d58bf5aa | 625 | } |
fb73857a | 626 | break; |
79072805 | 627 | case '\024': /* ^T */ |
7c36658b | 628 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 629 | #ifdef BIG_TIME |
7c36658b | 630 | sv_setnv(sv, PL_basetime); |
88e89b8a | 631 | #else |
7c36658b | 632 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 633 | #endif |
7c36658b MS |
634 | } |
635 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
636 | sv_setiv(sv, PL_tainting); | |
637 | break; | |
46487f74 | 638 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
639 | if (*(mg->mg_ptr+1) == '\0') |
640 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 641 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
642 | if (PL_compiling.cop_warnings == pWARN_NONE || |
643 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
644 | { |
645 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
646 | } | |
d3a7d8c7 | 647 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 648 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 649 | } |
4438c4b7 JH |
650 | else { |
651 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 652 | } |
d3a7d8c7 | 653 | SvPOK_only(sv); |
4438c4b7 | 654 | } |
0a378802 | 655 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
46487f74 | 656 | sv_setiv(sv, (IV)PL_widesyscalls); |
79072805 LW |
657 | break; |
658 | case '1': case '2': case '3': case '4': | |
659 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 660 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
661 | I32 s1, t1; |
662 | ||
a863c7d1 MB |
663 | /* |
664 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
665 | * XXX Does the new way break anything? | |
666 | */ | |
ffc61ed2 | 667 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 668 | getparen: |
d9f97599 | 669 | if (paren <= rx->nparens && |
cf93c79d IZ |
670 | (s1 = rx->startp[paren]) != -1 && |
671 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 672 | { |
cf93c79d IZ |
673 | i = t1 - s1; |
674 | s = rx->subbeg + s1; | |
01ec43d0 | 675 | if (!rx->subbeg) |
c2e66d9e GS |
676 | break; |
677 | ||
13f57bf8 | 678 | getrx: |
748a9306 | 679 | if (i >= 0) { |
b7953727 | 680 | bool was_tainted = FALSE; |
3280af22 NIS |
681 | if (PL_tainting) { |
682 | was_tainted = PL_tainted; | |
683 | PL_tainted = FALSE; | |
13f57bf8 | 684 | } |
cf93c79d | 685 | sv_setpvn(sv, s, i); |
53c4c00c | 686 | if (PL_reg_match_utf8 && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
687 | SvUTF8_on(sv); |
688 | else | |
689 | SvUTF8_off(sv); | |
3280af22 NIS |
690 | if (PL_tainting) |
691 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
692 | break; |
693 | } | |
79072805 | 694 | } |
79072805 | 695 | } |
3280af22 | 696 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
697 | break; |
698 | case '+': | |
aaa362c4 | 699 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 700 | paren = rx->lastparen; |
a0d0e21e LW |
701 | if (paren) |
702 | goto getparen; | |
79072805 | 703 | } |
3280af22 | 704 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 705 | break; |
a01268b5 JH |
706 | case '\016': /* ^N */ |
707 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
708 | paren = rx->lastcloseparen; | |
709 | if (paren) | |
710 | goto getparen; | |
711 | } | |
712 | sv_setsv(sv,&PL_sv_undef); | |
713 | break; | |
79072805 | 714 | case '`': |
aaa362c4 | 715 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
716 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
717 | i = rx->startp[0]; | |
13f57bf8 | 718 | goto getrx; |
79072805 | 719 | } |
79072805 | 720 | } |
3280af22 | 721 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
722 | break; |
723 | case '\'': | |
aaa362c4 | 724 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
725 | if (rx->subbeg && rx->endp[0] != -1) { |
726 | s = rx->subbeg + rx->endp[0]; | |
727 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 728 | goto getrx; |
79072805 | 729 | } |
79072805 | 730 | } |
3280af22 | 731 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
732 | break; |
733 | case '.': | |
734 | #ifndef lint | |
3280af22 | 735 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 736 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
737 | } |
738 | #endif | |
739 | break; | |
740 | case '?': | |
809a5acc | 741 | { |
809a5acc | 742 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 743 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
744 | LvTARGOFF(sv) = PL_statusvalue; |
745 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 746 | #endif |
809a5acc | 747 | } |
79072805 LW |
748 | break; |
749 | case '^': | |
3280af22 | 750 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
751 | if (s) |
752 | sv_setpv(sv,s); | |
753 | else { | |
3280af22 | 754 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
755 | sv_catpv(sv,"_TOP"); |
756 | } | |
757 | break; | |
758 | case '~': | |
3280af22 | 759 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 760 | if (!s) |
3280af22 | 761 | s = GvENAME(PL_defoutgv); |
79072805 LW |
762 | sv_setpv(sv,s); |
763 | break; | |
764 | #ifndef lint | |
765 | case '=': | |
3280af22 | 766 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
767 | break; |
768 | case '-': | |
3280af22 | 769 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
770 | break; |
771 | case '%': | |
3280af22 | 772 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
773 | break; |
774 | #endif | |
775 | case ':': | |
776 | break; | |
777 | case '/': | |
778 | break; | |
779 | case '[': | |
3280af22 | 780 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
781 | break; |
782 | case '|': | |
3280af22 | 783 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
784 | break; |
785 | case ',': | |
79072805 LW |
786 | break; |
787 | case '\\': | |
b2ce0fda JH |
788 | if (PL_ors_sv) |
789 | sv_setpv(sv,SvPVX(PL_ors_sv)); | |
79072805 LW |
790 | break; |
791 | case '#': | |
3280af22 | 792 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
793 | break; |
794 | case '!': | |
a5f75d66 | 795 | #ifdef VMS |
65202027 | 796 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 797 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 798 | #else |
88e89b8a | 799 | { |
800 | int saveerrno = errno; | |
65202027 | 801 | sv_setnv(sv, (NV)errno); |
88e89b8a | 802 | #ifdef OS2 |
ed344e4f IZ |
803 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
804 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 805 | else |
a5f75d66 | 806 | #endif |
2304df62 | 807 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 808 | errno = saveerrno; |
809 | } | |
810 | #endif | |
946ec16e | 811 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
812 | break; |
813 | case '<': | |
3280af22 | 814 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
815 | break; |
816 | case '>': | |
3280af22 | 817 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
818 | break; |
819 | case '(': | |
3280af22 | 820 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 821 | #ifdef HAS_GETGROUPS |
785fb66b | 822 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 823 | #endif |
79072805 LW |
824 | goto add_groups; |
825 | case ')': | |
3280af22 | 826 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 827 | #ifdef HAS_GETGROUPS |
785fb66b | 828 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 829 | #endif |
79072805 | 830 | add_groups: |
79072805 | 831 | #ifdef HAS_GETGROUPS |
79072805 | 832 | { |
a0d0e21e | 833 | Groups_t gary[NGROUPS]; |
79072805 | 834 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 835 | while (--i >= 0) |
785fb66b | 836 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
837 | } |
838 | #endif | |
155aba94 | 839 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
840 | break; |
841 | case '*': | |
842 | break; | |
cd39f2b6 | 843 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
844 | case '0': |
845 | break; | |
cd39f2b6 | 846 | #endif |
4d1ff10f | 847 | #ifdef USE_5005THREADS |
a863c7d1 | 848 | case '@': |
38a03e6e | 849 | sv_setsv(sv, thr->errsv); |
a863c7d1 | 850 | break; |
4d1ff10f | 851 | #endif /* USE_5005THREADS */ |
79072805 | 852 | } |
a0d0e21e | 853 | return 0; |
79072805 LW |
854 | } |
855 | ||
856 | int | |
864dbfa3 | 857 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
858 | { |
859 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
860 | ||
861 | if (uf && uf->uf_val) | |
24f81a43 | 862 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
863 | return 0; |
864 | } | |
865 | ||
866 | int | |
864dbfa3 | 867 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
868 | { |
869 | register char *s; | |
88e89b8a | 870 | char *ptr; |
5aabfad6 | 871 | STRLEN len, klen; |
1e422769 | 872 | |
a0d0e21e | 873 | s = SvPV(sv,len); |
5aabfad6 | 874 | ptr = MgPV(mg,klen); |
88e89b8a | 875 | my_setenv(ptr, s); |
1e422769 | 876 | |
a0d0e21e LW |
877 | #ifdef DYNAMIC_ENV_FETCH |
878 | /* We just undefd an environment var. Is a replacement */ | |
879 | /* waiting in the wings? */ | |
880 | if (!len) { | |
5aabfad6 | 881 | SV **valp; |
6b88bc9c | 882 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 883 | s = SvPV(*valp, len); |
a0d0e21e LW |
884 | } |
885 | #endif | |
1e422769 | 886 | |
39e571d4 | 887 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
888 | /* And you'll never guess what the dog had */ |
889 | /* in its mouth... */ | |
3280af22 | 890 | if (PL_tainting) { |
1e422769 | 891 | MgTAINTEDDIR_off(mg); |
892 | #ifdef VMS | |
5aabfad6 | 893 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 894 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
895 | struct stat sbuf; | |
896 | int i = 0, j = 0; | |
897 | ||
898 | do { /* DCL$PATH may be a search list */ | |
899 | while (1) { /* as may dev portion of any element */ | |
900 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
901 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
902 | cando_by_name(S_IWUSR,0,elt) ) { | |
903 | MgTAINTEDDIR_on(mg); | |
904 | return 0; | |
905 | } | |
906 | } | |
907 | if ((cp = strchr(elt, ':')) != Nullch) | |
908 | *cp = '\0'; | |
909 | if (my_trnlnm(elt, eltbuf, j++)) | |
910 | elt = eltbuf; | |
911 | else | |
912 | break; | |
913 | } | |
914 | j = 0; | |
915 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
916 | } | |
917 | #endif /* VMS */ | |
5aabfad6 | 918 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 919 | char *strend = s + len; |
463ee0b2 LW |
920 | |
921 | while (s < strend) { | |
96827780 | 922 | char tmpbuf[256]; |
1e422769 | 923 | struct stat st; |
5f74f29c | 924 | I32 i; |
96827780 | 925 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 926 | s, strend, ':', &i); |
463ee0b2 | 927 | s++; |
96827780 MB |
928 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
929 | || *tmpbuf != '/' | |
c6ed36e1 | 930 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 931 | MgTAINTEDDIR_on(mg); |
1e422769 | 932 | return 0; |
933 | } | |
463ee0b2 | 934 | } |
79072805 LW |
935 | } |
936 | } | |
39e571d4 | 937 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 938 | |
79072805 LW |
939 | return 0; |
940 | } | |
941 | ||
942 | int | |
864dbfa3 | 943 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 944 | { |
2d8e6c8d GS |
945 | STRLEN n_a; |
946 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
947 | return 0; |
948 | } | |
949 | ||
88e89b8a | 950 | int |
864dbfa3 | 951 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 952 | { |
953 | #if defined(VMS) | |
cea2e8a9 | 954 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 955 | #else |
3280af22 | 956 | if (PL_localizing) { |
fb73857a | 957 | HE* entry; |
2d8e6c8d | 958 | STRLEN n_a; |
fb73857a | 959 | magic_clear_all_env(sv,mg); |
960 | hv_iterinit((HV*)sv); | |
155aba94 | 961 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 962 | I32 keylen; |
963 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 964 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 965 | } |
966 | } | |
967 | #endif | |
968 | return 0; | |
969 | } | |
970 | ||
971 | int | |
864dbfa3 | 972 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 973 | { |
ed79a026 | 974 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 975 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 976 | #else |
df3728a2 | 977 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 GS |
978 | PerlEnv_clearenv(); |
979 | # else | |
052c2dc6 | 980 | # ifdef USE_ENVIRON_ARRAY |
7766f137 | 981 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
982 | I32 i; |
983 | ||
3280af22 | 984 | if (environ == PL_origenviron) |
f2517201 | 985 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
986 | else |
987 | for (i = 0; environ[i]; i++) | |
f2517201 | 988 | safesysfree(environ[i]); |
7766f137 | 989 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 990 | |
66b1d557 HM |
991 | environ[0] = Nullch; |
992 | ||
052c2dc6 JH |
993 | # endif /* USE_ENVIRON_ARRAY */ |
994 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ | |
995 | #endif /* VMS || EPC */ | |
3e3baf6d | 996 | return 0; |
66b1d557 HM |
997 | } |
998 | ||
2e34cc90 CL |
999 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1000 | static int sig_handlers_initted = 0; | |
1001 | #endif | |
23ada85b | 1002 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1003 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1004 | #endif | |
2e34cc90 CL |
1005 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1006 | static int sig_defaulting[SIG_SIZE]; | |
1007 | #endif | |
85b332e2 | 1008 | |
64ca3a65 | 1009 | #ifndef PERL_MICRO |
66b1d557 | 1010 | int |
864dbfa3 | 1011 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1012 | { |
1013 | I32 i; | |
2d8e6c8d | 1014 | STRLEN n_a; |
88e89b8a | 1015 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1016 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1017 | if (i) { |
22c35a8c GS |
1018 | if(PL_psig_ptr[i]) |
1019 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1020 | else { |
85b332e2 | 1021 | Sighandler_t sigstate; |
2e34cc90 | 1022 | sigstate = rsignal_state(i); |
23ada85b | 1023 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1024 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1025 | #endif | |
1026 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1027 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1028 | #endif |
88e89b8a | 1029 | /* cache state so we don't fetch it again */ |
ff68c719 | 1030 | if(sigstate == SIG_IGN) |
88e89b8a | 1031 | sv_setpv(sv,"IGNORE"); |
1032 | else | |
3280af22 | 1033 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1034 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1035 | SvTEMP_off(sv); |
1036 | } | |
1037 | } | |
1038 | return 0; | |
1039 | } | |
1040 | int | |
864dbfa3 | 1041 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1042 | { |
1043 | I32 i; | |
2d8e6c8d | 1044 | STRLEN n_a; |
88e89b8a | 1045 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 1046 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1047 | if (i) { |
22c35a8c GS |
1048 | if(PL_psig_ptr[i]) { |
1049 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1050 | PL_psig_ptr[i]=0; | |
88e89b8a | 1051 | } |
22c35a8c GS |
1052 | if(PL_psig_name[i]) { |
1053 | SvREFCNT_dec(PL_psig_name[i]); | |
1054 | PL_psig_name[i]=0; | |
88e89b8a | 1055 | } |
1056 | } | |
1057 | return 0; | |
1058 | } | |
3d37d572 | 1059 | |
0a8e0eff NIS |
1060 | void |
1061 | Perl_raise_signal(pTHX_ int sig) | |
1062 | { | |
1063 | /* Set a flag to say this signal is pending */ | |
1064 | PL_psig_pend[sig]++; | |
1065 | /* And one to say _a_ signal is pending */ | |
1066 | PL_sig_pending = 1; | |
1067 | } | |
1068 | ||
1069 | Signal_t | |
1070 | Perl_csighandler(int sig) | |
1071 | { | |
85b332e2 CL |
1072 | #ifndef PERL_OLD_SIGNALS |
1073 | dTHX; | |
1074 | #endif | |
23ada85b | 1075 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1076 | (void) rsignal(sig, &Perl_csighandler); |
1077 | if (sig_ignoring[sig]) return; | |
1078 | #endif | |
2e34cc90 CL |
1079 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1080 | if (sig_defaulting[sig]) | |
1081 | #ifdef KILL_BY_SIGPRC | |
1082 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1083 | #else | |
1084 | exit(1); | |
1085 | #endif | |
1086 | #endif | |
1087 | ||
0a8e0eff NIS |
1088 | #ifdef PERL_OLD_SIGNALS |
1089 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1090 | (*PL_sighandlerp)(sig); | |
1091 | #else | |
0a8e0eff NIS |
1092 | Perl_raise_signal(aTHX_ sig); |
1093 | #endif | |
1094 | } | |
1095 | ||
2e34cc90 CL |
1096 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1097 | void | |
1098 | Perl_csighandler_init(void) | |
1099 | { | |
1100 | int sig; | |
1101 | if (sig_handlers_initted) return; | |
1102 | ||
1103 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1104 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1105 | dTHX; |
2e34cc90 CL |
1106 | sig_defaulting[sig] = 1; |
1107 | (void) rsignal(sig, &Perl_csighandler); | |
1108 | #endif | |
1109 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1110 | sig_ignoring[sig] = 0; | |
1111 | #endif | |
1112 | } | |
1113 | sig_handlers_initted = 1; | |
1114 | } | |
1115 | #endif | |
1116 | ||
0a8e0eff NIS |
1117 | void |
1118 | Perl_despatch_signals(pTHX) | |
1119 | { | |
1120 | int sig; | |
1121 | PL_sig_pending = 0; | |
1122 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1123 | if (PL_psig_pend[sig]) { | |
1124 | PL_psig_pend[sig] = 0; | |
1125 | (*PL_sighandlerp)(sig); | |
1126 | } | |
1127 | } | |
1128 | } | |
1129 | ||
85e6fe83 | 1130 | int |
864dbfa3 | 1131 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1132 | { |
1133 | register char *s; | |
1134 | I32 i; | |
b7953727 | 1135 | SV** svp = 0; |
e72dc28c | 1136 | STRLEN len; |
a0d0e21e | 1137 | |
e72dc28c | 1138 | s = MgPV(mg,len); |
748a9306 LW |
1139 | if (*s == '_') { |
1140 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1141 | svp = &PL_diehook; |
748a9306 | 1142 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1143 | svp = &PL_warnhook; |
748a9306 | 1144 | else |
cea2e8a9 | 1145 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1146 | i = 0; |
4633a7c4 LW |
1147 | if (*svp) { |
1148 | SvREFCNT_dec(*svp); | |
1149 | *svp = 0; | |
1150 | } | |
748a9306 LW |
1151 | } |
1152 | else { | |
1153 | i = whichsig(s); /* ...no, a brick */ | |
1154 | if (!i) { | |
e476b1b5 | 1155 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1156 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1157 | return 0; |
1158 | } | |
2e34cc90 CL |
1159 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1160 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1161 | #endif | |
23ada85b | 1162 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1163 | sig_ignoring[i] = 0; |
1164 | #endif | |
2e34cc90 CL |
1165 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1166 | sig_defaulting[i] = 0; | |
1167 | #endif | |
22c35a8c GS |
1168 | SvREFCNT_dec(PL_psig_name[i]); |
1169 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1170 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1171 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1172 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1173 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1174 | } |
a0d0e21e | 1175 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1176 | if (i) |
0a8e0eff | 1177 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1178 | else |
1179 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1180 | return 0; |
1181 | } | |
e72dc28c | 1182 | s = SvPV_force(sv,len); |
748a9306 | 1183 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1184 | if (i) { |
23ada85b | 1185 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1186 | sig_ignoring[i] = 1; |
1187 | (void)rsignal(i, &Perl_csighandler); | |
1188 | #else | |
ff68c719 | 1189 | (void)rsignal(i, SIG_IGN); |
85b332e2 CL |
1190 | #endif |
1191 | } else | |
748a9306 LW |
1192 | *svp = 0; |
1193 | } | |
1194 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1195 | if (i) | |
2e34cc90 CL |
1196 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1197 | { | |
1198 | sig_defaulting[i] = 1; | |
1199 | (void)rsignal(i, &Perl_csighandler); | |
1200 | } | |
1201 | #else | |
ff68c719 | 1202 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1203 | #endif |
748a9306 LW |
1204 | else |
1205 | *svp = 0; | |
1206 | } | |
79072805 | 1207 | else { |
5aabfad6 | 1208 | /* |
1209 | * We should warn if HINT_STRICT_REFS, but without | |
1210 | * access to a known hint bit in a known OP, we can't | |
1211 | * tell whether HINT_STRICT_REFS is in force or not. | |
1212 | */ | |
46fc3d4c | 1213 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1214 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1215 | if (i) |
0a8e0eff | 1216 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1217 | else |
1218 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1219 | } |
1220 | return 0; | |
1221 | } | |
64ca3a65 | 1222 | #endif /* !PERL_MICRO */ |
79072805 LW |
1223 | |
1224 | int | |
864dbfa3 | 1225 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1226 | { |
3280af22 | 1227 | PL_sub_generation++; |
463ee0b2 LW |
1228 | return 0; |
1229 | } | |
1230 | ||
1231 | int | |
864dbfa3 | 1232 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1233 | { |
a0d0e21e | 1234 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1235 | PL_amagic_generation++; |
463ee0b2 | 1236 | |
a0d0e21e LW |
1237 | return 0; |
1238 | } | |
463ee0b2 | 1239 | |
946ec16e | 1240 | int |
864dbfa3 | 1241 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1242 | { |
1243 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1244 | I32 i = 0; |
497b47a8 | 1245 | |
6ff81951 | 1246 | if (hv) { |
497b47a8 JH |
1247 | (void) hv_iterinit(hv); |
1248 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1249 | i = HvKEYS(hv); | |
1250 | else { | |
1251 | while (hv_iternext(hv)) | |
1252 | i++; | |
1253 | } | |
6ff81951 GS |
1254 | } |
1255 | ||
1256 | sv_setiv(sv, (IV)i); | |
1257 | return 0; | |
1258 | } | |
1259 | ||
1260 | int | |
864dbfa3 | 1261 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1262 | { |
1263 | if (LvTARG(sv)) { | |
1264 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1265 | } |
1266 | return 0; | |
ac27b0f5 | 1267 | } |
946ec16e | 1268 | |
e336de0d | 1269 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1270 | STATIC int |
cea2e8a9 | 1271 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1272 | { |
1273 | dSP; | |
463ee0b2 | 1274 | |
924508f0 GS |
1275 | PUSHMARK(SP); |
1276 | EXTEND(SP, n); | |
33c27489 | 1277 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1278 | if (n > 1) { |
93965878 | 1279 | if (mg->mg_ptr) { |
565764a8 | 1280 | if (mg->mg_len >= 0) |
79cb57f6 | 1281 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1282 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1283 | PUSHs((SV*)mg->mg_ptr); |
1284 | } | |
14befaf4 | 1285 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1286 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1287 | } |
1288 | } | |
1289 | if (n > 2) { | |
1290 | PUSHs(val); | |
88e89b8a | 1291 | } |
463ee0b2 LW |
1292 | PUTBACK; |
1293 | ||
864dbfa3 | 1294 | return call_method(meth, flags); |
946ec16e | 1295 | } |
1296 | ||
76e3520e | 1297 | STATIC int |
cea2e8a9 | 1298 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1299 | { |
1300 | dSP; | |
463ee0b2 | 1301 | |
a0d0e21e LW |
1302 | ENTER; |
1303 | SAVETMPS; | |
e788e7d3 | 1304 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1305 | |
33c27489 | 1306 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1307 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1308 | } |
463ee0b2 | 1309 | |
d3acc0f7 | 1310 | POPSTACK; |
a0d0e21e LW |
1311 | FREETMPS; |
1312 | LEAVE; | |
1313 | return 0; | |
1314 | } | |
463ee0b2 | 1315 | |
a0d0e21e | 1316 | int |
864dbfa3 | 1317 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1318 | { |
1319 | magic_methpack(sv,mg,"FETCH"); | |
1320 | if (mg->mg_ptr) | |
1321 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1322 | return 0; |
1323 | } | |
1324 | ||
1325 | int | |
864dbfa3 | 1326 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1327 | { |
1328 | dSP; | |
a60c0954 | 1329 | ENTER; |
e788e7d3 | 1330 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1331 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1332 | POPSTACK; |
a60c0954 | 1333 | LEAVE; |
463ee0b2 LW |
1334 | return 0; |
1335 | } | |
1336 | ||
1337 | int | |
864dbfa3 | 1338 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1339 | { |
a0d0e21e LW |
1340 | return magic_methpack(sv,mg,"DELETE"); |
1341 | } | |
463ee0b2 | 1342 | |
93965878 NIS |
1343 | |
1344 | U32 | |
864dbfa3 | 1345 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1346 | { |
e336de0d | 1347 | dSP; |
93965878 NIS |
1348 | U32 retval = 0; |
1349 | ||
1350 | ENTER; | |
1351 | SAVETMPS; | |
e788e7d3 | 1352 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1353 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1354 | sv = *PL_stack_sp--; |
a60c0954 | 1355 | retval = (U32) SvIV(sv)-1; |
93965878 | 1356 | } |
d3acc0f7 | 1357 | POPSTACK; |
93965878 NIS |
1358 | FREETMPS; |
1359 | LEAVE; | |
1360 | return retval; | |
1361 | } | |
1362 | ||
cea2e8a9 GS |
1363 | int |
1364 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1365 | { |
1366 | dSP; | |
463ee0b2 | 1367 | |
e336de0d | 1368 | ENTER; |
e788e7d3 | 1369 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1370 | PUSHMARK(SP); |
33c27489 | 1371 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1372 | PUTBACK; |
864dbfa3 | 1373 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1374 | POPSTACK; |
a60c0954 | 1375 | LEAVE; |
463ee0b2 LW |
1376 | return 0; |
1377 | } | |
1378 | ||
1379 | int | |
864dbfa3 | 1380 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1381 | { |
463ee0b2 | 1382 | dSP; |
dff6d3cd | 1383 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1384 | |
1385 | ENTER; | |
a0d0e21e | 1386 | SAVETMPS; |
e788e7d3 | 1387 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1388 | PUSHMARK(SP); |
1389 | EXTEND(SP, 2); | |
33c27489 | 1390 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1391 | if (SvOK(key)) |
1392 | PUSHs(key); | |
1393 | PUTBACK; | |
1394 | ||
864dbfa3 | 1395 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1396 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1397 | |
d3acc0f7 | 1398 | POPSTACK; |
a0d0e21e LW |
1399 | FREETMPS; |
1400 | LEAVE; | |
79072805 LW |
1401 | return 0; |
1402 | } | |
1403 | ||
1404 | int | |
864dbfa3 | 1405 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1406 | { |
1407 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1408 | } |
a0d0e21e LW |
1409 | |
1410 | int | |
864dbfa3 | 1411 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1412 | { |
1413 | OP *o; | |
1414 | I32 i; | |
1415 | GV* gv; | |
1416 | SV** svp; | |
2d8e6c8d | 1417 | STRLEN n_a; |
79072805 | 1418 | |
3280af22 | 1419 | gv = PL_DBline; |
79072805 | 1420 | i = SvTRUE(sv); |
188ea221 | 1421 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1422 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1423 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1424 | o->op_private = i; |
79072805 LW |
1425 | return 0; |
1426 | } | |
1427 | ||
1428 | int | |
864dbfa3 | 1429 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1430 | { |
3280af22 | 1431 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1432 | return 0; |
1433 | } | |
1434 | ||
1435 | int | |
864dbfa3 | 1436 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1437 | { |
3280af22 | 1438 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1439 | return 0; |
1440 | } | |
1441 | ||
1442 | int | |
864dbfa3 | 1443 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1444 | { |
1445 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1446 | |
a0d0e21e | 1447 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1448 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1449 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1450 | I32 i = mg->mg_len; |
7e2040f0 | 1451 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1452 | sv_pos_b2u(lsv, &i); |
1453 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1454 | return 0; |
1455 | } | |
1456 | } | |
1457 | (void)SvOK_off(sv); | |
1458 | return 0; | |
1459 | } | |
1460 | ||
1461 | int | |
864dbfa3 | 1462 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1463 | { |
1464 | SV* lsv = LvTARG(sv); | |
1465 | SSize_t pos; | |
1466 | STRLEN len; | |
c00206c8 | 1467 | STRLEN ulen = 0; |
a0d0e21e LW |
1468 | |
1469 | mg = 0; | |
ac27b0f5 | 1470 | |
a0d0e21e | 1471 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1472 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1473 | if (!mg) { |
1474 | if (!SvOK(sv)) | |
1475 | return 0; | |
14befaf4 DM |
1476 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1477 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1478 | } |
1479 | else if (!SvOK(sv)) { | |
565764a8 | 1480 | mg->mg_len = -1; |
a0d0e21e LW |
1481 | return 0; |
1482 | } | |
1483 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1484 | ||
c485e607 | 1485 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1486 | |
7e2040f0 | 1487 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1488 | ulen = sv_len_utf8(lsv); |
1489 | if (ulen) | |
1490 | len = ulen; | |
a0ed51b3 LW |
1491 | } |
1492 | ||
a0d0e21e LW |
1493 | if (pos < 0) { |
1494 | pos += len; | |
1495 | if (pos < 0) | |
1496 | pos = 0; | |
1497 | } | |
1498 | else if (pos > len) | |
1499 | pos = len; | |
a0ed51b3 LW |
1500 | |
1501 | if (ulen) { | |
1502 | I32 p = pos; | |
1503 | sv_pos_u2b(lsv, &p, 0); | |
1504 | pos = p; | |
1505 | } | |
1506 | ||
565764a8 | 1507 | mg->mg_len = pos; |
71be2cbc | 1508 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1509 | |
79072805 LW |
1510 | return 0; |
1511 | } | |
1512 | ||
1513 | int | |
864dbfa3 | 1514 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1515 | { |
8646b087 | 1516 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1517 | SvFAKE_off(sv); | |
946ec16e | 1518 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1519 | SvFAKE_on(sv); |
1520 | } | |
1521 | else | |
946ec16e | 1522 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1523 | return 0; |
1524 | } | |
1525 | ||
1526 | int | |
864dbfa3 | 1527 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1528 | { |
1529 | register char *s; | |
1530 | GV* gv; | |
2d8e6c8d | 1531 | STRLEN n_a; |
79072805 LW |
1532 | |
1533 | if (!SvOK(sv)) | |
1534 | return 0; | |
2d8e6c8d | 1535 | s = SvPV(sv, n_a); |
79072805 LW |
1536 | if (*s == '*' && s[1]) |
1537 | s++; | |
85e6fe83 | 1538 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1539 | if (sv == (SV*)gv) |
1540 | return 0; | |
1541 | if (GvGP(sv)) | |
88e89b8a | 1542 | gp_free((GV*)sv); |
79072805 | 1543 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1544 | return 0; |
1545 | } | |
1546 | ||
1547 | int | |
864dbfa3 | 1548 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1549 | { |
1550 | STRLEN len; | |
1551 | SV *lsv = LvTARG(sv); | |
1552 | char *tmps = SvPV(lsv,len); | |
1553 | I32 offs = LvTARGOFF(sv); | |
1554 | I32 rem = LvTARGLEN(sv); | |
1555 | ||
9aa983d2 JH |
1556 | if (SvUTF8(lsv)) |
1557 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1558 | if (offs > len) |
1559 | offs = len; | |
1560 | if (rem + offs > len) | |
1561 | rem = len - offs; | |
1562 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1563 | if (SvUTF8(lsv)) |
2ef4b674 | 1564 | SvUTF8_on(sv); |
6ff81951 GS |
1565 | return 0; |
1566 | } | |
1567 | ||
1568 | int | |
864dbfa3 | 1569 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1570 | { |
9aa983d2 JH |
1571 | STRLEN len; |
1572 | char *tmps = SvPV(sv, len); | |
1573 | SV *lsv = LvTARG(sv); | |
1574 | I32 lvoff = LvTARGOFF(sv); | |
1575 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1576 | |
1aa99e6b | 1577 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1578 | sv_utf8_upgrade(lsv); |
1579 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1580 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1581 | SvUTF8_on(lsv); | |
1582 | } | |
9bf12eaf | 1583 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1584 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1585 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1586 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1587 | Safefree(tmps); | |
1aa99e6b IH |
1588 | } |
1589 | else | |
9aa983d2 | 1590 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1591 | |
79072805 LW |
1592 | return 0; |
1593 | } | |
1594 | ||
1595 | int | |
864dbfa3 | 1596 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1597 | { |
565764a8 | 1598 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1599 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1600 | return 0; |
1601 | } | |
1602 | ||
1603 | int | |
864dbfa3 | 1604 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1605 | { |
3280af22 NIS |
1606 | if (PL_localizing) { |
1607 | if (PL_localizing == 1) | |
565764a8 | 1608 | mg->mg_len <<= 1; |
748a9306 | 1609 | else |
565764a8 | 1610 | mg->mg_len >>= 1; |
a0d0e21e | 1611 | } |
3280af22 | 1612 | else if (PL_tainted) |
565764a8 | 1613 | mg->mg_len |= 1; |
748a9306 | 1614 | else |
565764a8 | 1615 | mg->mg_len &= ~1; |
463ee0b2 LW |
1616 | return 0; |
1617 | } | |
1618 | ||
1619 | int | |
864dbfa3 | 1620 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1621 | { |
1622 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1623 | |
1624 | if (!lsv) { | |
155aba94 | 1625 | (void)SvOK_off(sv); |
6ff81951 GS |
1626 | return 0; |
1627 | } | |
6ff81951 | 1628 | |
81e118e0 | 1629 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1630 | return 0; |
1631 | } | |
1632 | ||
1633 | int | |
864dbfa3 | 1634 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1635 | { |
1636 | do_vecset(sv); /* XXX slurp this routine */ | |
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | int | |
864dbfa3 | 1641 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1642 | { |
71be2cbc | 1643 | SV *targ = Nullsv; |
5f05dabc | 1644 | if (LvTARGLEN(sv)) { |
68dc0745 | 1645 | if (mg->mg_obj) { |
74e13ce4 GS |
1646 | SV *ahv = LvTARG(sv); |
1647 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1648 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1649 | if (he) | |
1650 | targ = HeVAL(he); | |
1651 | } | |
1652 | else { | |
1653 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1654 | if (svp) | |
1655 | targ = *svp; | |
1656 | } | |
68dc0745 | 1657 | } |
1658 | else { | |
3c78fafa | 1659 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1660 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1661 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1662 | } | |
3280af22 | 1663 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1664 | /* somebody else defined it for us */ |
1665 | SvREFCNT_dec(LvTARG(sv)); | |
1666 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1667 | LvTARGLEN(sv) = 0; | |
1668 | SvREFCNT_dec(mg->mg_obj); | |
1669 | mg->mg_obj = Nullsv; | |
1670 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1671 | } | |
5f05dabc | 1672 | } |
71be2cbc | 1673 | else |
1674 | targ = LvTARG(sv); | |
3280af22 | 1675 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1676 | return 0; |
1677 | } | |
1678 | ||
1679 | int | |
864dbfa3 | 1680 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1681 | { |
1682 | if (LvTARGLEN(sv)) | |
68dc0745 | 1683 | vivify_defelem(sv); |
1684 | if (LvTARG(sv)) { | |
5f05dabc | 1685 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1686 | SvSETMAGIC(LvTARG(sv)); |
1687 | } | |
5f05dabc | 1688 | return 0; |
1689 | } | |
1690 | ||
71be2cbc | 1691 | void |
864dbfa3 | 1692 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1693 | { |
74e13ce4 GS |
1694 | MAGIC *mg; |
1695 | SV *value = Nullsv; | |
71be2cbc | 1696 | |
14befaf4 | 1697 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1698 | return; |
68dc0745 | 1699 | if (mg->mg_obj) { |
74e13ce4 | 1700 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1701 | STRLEN n_a; |
74e13ce4 | 1702 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1703 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1704 | if (he) |
1705 | value = HeVAL(he); | |
1706 | } | |
1707 | else { | |
af7f9c15 | 1708 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1709 | if (svp) |
1710 | value = *svp; | |
1711 | } | |
3280af22 | 1712 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1713 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1714 | } |
68dc0745 | 1715 | else { |
1716 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1717 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1718 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1719 | else { | |
1720 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1721 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1722 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1723 | } |
1724 | } | |
3e3baf6d | 1725 | (void)SvREFCNT_inc(value); |
68dc0745 | 1726 | SvREFCNT_dec(LvTARG(sv)); |
1727 | LvTARG(sv) = value; | |
71be2cbc | 1728 | LvTARGLEN(sv) = 0; |
68dc0745 | 1729 | SvREFCNT_dec(mg->mg_obj); |
1730 | mg->mg_obj = Nullsv; | |
1731 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1732 | } |
1733 | ||
1734 | int | |
864dbfa3 | 1735 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1736 | { |
1737 | AV *av = (AV*)mg->mg_obj; | |
1738 | SV **svp = AvARRAY(av); | |
1739 | I32 i = AvFILLp(av); | |
1740 | while (i >= 0) { | |
1741 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1742 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1743 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1744 | /* XXX Should we check that it hasn't changed? */ |
1745 | SvRV(svp[i]) = 0; | |
155aba94 | 1746 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1747 | SvWEAKREF_off(svp[i]); |
1748 | svp[i] = &PL_sv_undef; | |
1749 | } | |
1750 | i--; | |
1751 | } | |
1752 | return 0; | |
1753 | } | |
1754 | ||
1755 | int | |
864dbfa3 | 1756 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1757 | { |
565764a8 | 1758 | mg->mg_len = -1; |
c6496cc7 | 1759 | SvSCREAM_off(sv); |
93a17b20 LW |
1760 | return 0; |
1761 | } | |
1762 | ||
1763 | int | |
864dbfa3 | 1764 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1765 | { |
14befaf4 | 1766 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1767 | SvVALID_off(sv); |
1768 | return 0; | |
1769 | } | |
1770 | ||
1771 | int | |
864dbfa3 | 1772 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1773 | { |
14befaf4 | 1774 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1775 | SvCOMPILED_off(sv); |
1776 | return 0; | |
1777 | } | |
1778 | ||
1779 | int | |
864dbfa3 | 1780 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1781 | { |
1782 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1783 | ||
1784 | if (uf && uf->uf_set) | |
24f81a43 | 1785 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1786 | return 0; |
1787 | } | |
1788 | ||
c277df42 | 1789 | int |
864dbfa3 | 1790 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1791 | { |
1792 | regexp *re = (regexp *)mg->mg_obj; | |
1793 | ReREFCNT_dec(re); | |
1794 | return 0; | |
1795 | } | |
1796 | ||
7a4c00b4 | 1797 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1798 | int |
864dbfa3 | 1799 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1800 | { |
1801 | /* | |
838b5b74 | 1802 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1803 | * and vanished with a faint plop. |
1804 | */ | |
7a4c00b4 | 1805 | if (mg->mg_ptr) { |
1806 | Safefree(mg->mg_ptr); | |
1807 | mg->mg_ptr = NULL; | |
565764a8 | 1808 | mg->mg_len = -1; |
7a4c00b4 | 1809 | } |
bbce6d69 | 1810 | return 0; |
1811 | } | |
7a4c00b4 | 1812 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1813 | |
1814 | int | |
864dbfa3 | 1815 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1816 | { |
1817 | register char *s; | |
1818 | I32 i; | |
8990e307 | 1819 | STRLEN len; |
79072805 | 1820 | switch (*mg->mg_ptr) { |
748a9306 | 1821 | case '\001': /* ^A */ |
3280af22 | 1822 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1823 | break; |
49460fe6 NIS |
1824 | case '\003': /* ^C */ |
1825 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1826 | break; | |
1827 | ||
79072805 | 1828 | case '\004': /* ^D */ |
aea4f609 | 1829 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1830 | DEBUG_x(dump_all()); |
1831 | break; | |
28f23441 | 1832 | case '\005': /* ^E */ |
0a378802 | 1833 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 1834 | #ifdef MACOS_TRADITIONAL |
0a378802 | 1835 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1836 | #else |
cd39f2b6 | 1837 | # ifdef VMS |
0a378802 | 1838 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 1839 | # else |
cd39f2b6 | 1840 | # ifdef WIN32 |
0a378802 | 1841 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 1842 | # else |
9fed8b87 | 1843 | # ifdef OS2 |
0a378802 | 1844 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 1845 | # else |
0a378802 JH |
1846 | /* will anyone ever use this? */ |
1847 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1848 | # endif |
048c1ddf IZ |
1849 | # endif |
1850 | # endif | |
22fae026 | 1851 | #endif |
0a378802 JH |
1852 | } |
1853 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
1854 | if (PL_encoding) | |
1855 | sv_setsv(PL_encoding, sv); | |
1856 | else | |
1857 | PL_encoding = newSVsv(sv); | |
1858 | } | |
79072805 | 1859 | case '\006': /* ^F */ |
3280af22 | 1860 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1861 | break; |
a0d0e21e | 1862 | case '\010': /* ^H */ |
3280af22 | 1863 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1864 | break; |
9d116dd7 | 1865 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1866 | if (PL_inplace) |
1867 | Safefree(PL_inplace); | |
79072805 | 1868 | if (SvOK(sv)) |
2d8e6c8d | 1869 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1870 | else |
3280af22 | 1871 | PL_inplace = Nullch; |
79072805 | 1872 | break; |
28f23441 | 1873 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1874 | if (*(mg->mg_ptr+1) == '\0') { |
1875 | if (PL_osname) | |
1876 | Safefree(PL_osname); | |
1877 | if (SvOK(sv)) | |
1878 | PL_osname = savepv(SvPV(sv,len)); | |
1879 | else | |
1880 | PL_osname = Nullch; | |
1881 | } | |
1882 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1883 | if (!PL_compiling.cop_io) | |
1884 | PL_compiling.cop_io = newSVsv(sv); | |
1885 | else | |
1886 | sv_setsv(PL_compiling.cop_io,sv); | |
1887 | } | |
28f23441 | 1888 | break; |
79072805 | 1889 | case '\020': /* ^P */ |
3280af22 | 1890 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1891 | if (PL_perldb && !PL_DBsingle) |
1892 | init_debugger(); | |
79072805 LW |
1893 | break; |
1894 | case '\024': /* ^T */ | |
88e89b8a | 1895 | #ifdef BIG_TIME |
6b88bc9c | 1896 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1897 | #else |
3280af22 | 1898 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1899 | #endif |
79072805 | 1900 | break; |
46487f74 | 1901 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1902 | if (*(mg->mg_ptr+1) == '\0') { |
1903 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1904 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1905 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1906 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1907 | } |
599cee73 | 1908 | } |
0a378802 | 1909 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 1910 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1911 | if (!SvPOK(sv) && PL_localizing) { |
1912 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1913 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1914 | break; |
1915 | } | |
f4fc7782 | 1916 | { |
b5477537 | 1917 | STRLEN len, i; |
d3a7d8c7 | 1918 | int accumulate = 0 ; |
f4fc7782 | 1919 | int any_fatals = 0 ; |
d3a7d8c7 | 1920 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1921 | for (i = 0 ; i < len ; ++i) { |
1922 | accumulate |= ptr[i] ; | |
1923 | any_fatals |= (ptr[i] & 0xAA) ; | |
1924 | } | |
d3a7d8c7 GS |
1925 | if (!accumulate) |
1926 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1927 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1928 | PL_compiling.cop_warnings = pWARN_ALL; | |
1929 | PL_dowarn |= G_WARN_ONCE ; | |
1930 | } | |
d3a7d8c7 GS |
1931 | else { |
1932 | if (specialWARN(PL_compiling.cop_warnings)) | |
1933 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1934 | else | |
1935 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1936 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1937 | PL_dowarn |= G_WARN_ONCE ; | |
1938 | } | |
f4fc7782 | 1939 | |
d3a7d8c7 | 1940 | } |
4438c4b7 | 1941 | } |
971a9dd3 | 1942 | } |
0a378802 | 1943 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
46487f74 | 1944 | PL_widesyscalls = SvTRUE(sv); |
79072805 LW |
1945 | break; |
1946 | case '.': | |
3280af22 NIS |
1947 | if (PL_localizing) { |
1948 | if (PL_localizing == 1) | |
7766f137 | 1949 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1950 | } |
3280af22 | 1951 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 1952 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
1953 | break; |
1954 | case '^': | |
3280af22 | 1955 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1956 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1957 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1958 | break; |
1959 | case '~': | |
3280af22 | 1960 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1961 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1962 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1963 | break; |
1964 | case '=': | |
632db599 | 1965 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1966 | break; |
1967 | case '-': | |
632db599 | 1968 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
1969 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1970 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1971 | break; |
1972 | case '%': | |
632db599 | 1973 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1974 | break; |
1975 | case '|': | |
4b65379b | 1976 | { |
3280af22 | 1977 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
1978 | if(!io) |
1979 | break; | |
4b65379b CS |
1980 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1981 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1982 | else { | |
1983 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1984 | PerlIO *ofp = IoOFP(io); | |
1985 | if (ofp) | |
1986 | (void)PerlIO_flush(ofp); | |
1987 | IoFLAGS(io) |= IOf_FLUSH; | |
1988 | } | |
1989 | } | |
79072805 LW |
1990 | } |
1991 | break; | |
1992 | case '*': | |
463ee0b2 | 1993 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1994 | PL_multiline = (i != 0); |
79072805 LW |
1995 | break; |
1996 | case '/': | |
3280af22 | 1997 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 1998 | PL_rs = newSVsv(sv); |
79072805 LW |
1999 | break; |
2000 | case '\\': | |
7889fe52 NIS |
2001 | if (PL_ors_sv) |
2002 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2003 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2004 | PL_ors_sv = newSVsv(sv); |
009c130f | 2005 | } |
e3c19b7b | 2006 | else { |
7889fe52 | 2007 | PL_ors_sv = Nullsv; |
e3c19b7b | 2008 | } |
79072805 LW |
2009 | break; |
2010 | case ',': | |
7889fe52 NIS |
2011 | if (PL_ofs_sv) |
2012 | SvREFCNT_dec(PL_ofs_sv); | |
2013 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2014 | PL_ofs_sv = newSVsv(sv); | |
2015 | } | |
2016 | else { | |
2017 | PL_ofs_sv = Nullsv; | |
2018 | } | |
79072805 LW |
2019 | break; |
2020 | case '#': | |
3280af22 NIS |
2021 | if (PL_ofmt) |
2022 | Safefree(PL_ofmt); | |
2d8e6c8d | 2023 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2024 | break; |
2025 | case '[': | |
3280af22 | 2026 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2027 | break; |
2028 | case '?': | |
ff0cee69 | 2029 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2030 | if (PL_localizing == 2) { |
2031 | PL_statusvalue = LvTARGOFF(sv); | |
2032 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2033 | } |
2034 | else | |
2035 | #endif | |
2036 | #ifdef VMSISH_STATUS | |
2037 | if (VMSISH_STATUS) | |
2038 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2039 | else | |
2040 | #endif | |
2041 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2042 | break; |
2043 | case '!': | |
91487cfc JH |
2044 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
2045 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
2046 | break; |
2047 | case '<': | |
3280af22 NIS |
2048 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2049 | if (PL_delaymagic) { | |
2050 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2051 | break; /* don't do magic till later */ |
2052 | } | |
2053 | #ifdef HAS_SETRUID | |
b28d0864 | 2054 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2055 | #else |
2056 | #ifdef HAS_SETREUID | |
3280af22 | 2057 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2058 | #else |
85e6fe83 | 2059 | #ifdef HAS_SETRESUID |
b28d0864 | 2060 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2061 | #else |
b28d0864 NIS |
2062 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2063 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2064 | else { |
d8eceb89 | 2065 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2066 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2067 | } |
79072805 LW |
2068 | #endif |
2069 | #endif | |
85e6fe83 | 2070 | #endif |
d8eceb89 | 2071 | PL_uid = PerlProc_getuid(); |
3280af22 | 2072 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2073 | break; |
2074 | case '>': | |
3280af22 NIS |
2075 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2076 | if (PL_delaymagic) { | |
2077 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2078 | break; /* don't do magic till later */ |
2079 | } | |
2080 | #ifdef HAS_SETEUID | |
3280af22 | 2081 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2082 | #else |
2083 | #ifdef HAS_SETREUID | |
b28d0864 | 2084 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2085 | #else |
2086 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2087 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2088 | #else |
b28d0864 NIS |
2089 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2090 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2091 | else { |
e8ee3774 | 2092 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2093 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2094 | } |
79072805 LW |
2095 | #endif |
2096 | #endif | |
85e6fe83 | 2097 | #endif |
d8eceb89 | 2098 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2099 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2100 | break; |
2101 | case '(': | |
3280af22 NIS |
2102 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2103 | if (PL_delaymagic) { | |
2104 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2105 | break; /* don't do magic till later */ |
2106 | } | |
2107 | #ifdef HAS_SETRGID | |
b28d0864 | 2108 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2109 | #else |
2110 | #ifdef HAS_SETREGID | |
3280af22 | 2111 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2112 | #else |
2113 | #ifdef HAS_SETRESGID | |
b28d0864 | 2114 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2115 | #else |
b28d0864 NIS |
2116 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2117 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2118 | else { |
d8eceb89 | 2119 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2120 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2121 | } |
79072805 LW |
2122 | #endif |
2123 | #endif | |
85e6fe83 | 2124 | #endif |
d8eceb89 | 2125 | PL_gid = PerlProc_getgid(); |
3280af22 | 2126 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2127 | break; |
2128 | case ')': | |
5cd24f17 | 2129 | #ifdef HAS_SETGROUPS |
2130 | { | |
2d8e6c8d | 2131 | char *p = SvPV(sv, len); |
5cd24f17 | 2132 | Groups_t gary[NGROUPS]; |
2133 | ||
5cd24f17 | 2134 | while (isSPACE(*p)) |
2135 | ++p; | |
2d4389e4 | 2136 | PL_egid = Atol(p); |
5cd24f17 | 2137 | for (i = 0; i < NGROUPS; ++i) { |
2138 | while (*p && !isSPACE(*p)) | |
2139 | ++p; | |
2140 | while (isSPACE(*p)) | |
2141 | ++p; | |
2142 | if (!*p) | |
2143 | break; | |
2d4389e4 | 2144 | gary[i] = Atol(p); |
5cd24f17 | 2145 | } |
8cc95fdb | 2146 | if (i) |
2147 | (void)setgroups(i, gary); | |
5cd24f17 | 2148 | } |
2149 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2150 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2151 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2152 | if (PL_delaymagic) { |
2153 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2154 | break; /* don't do magic till later */ |
2155 | } | |
2156 | #ifdef HAS_SETEGID | |
3280af22 | 2157 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2158 | #else |
2159 | #ifdef HAS_SETREGID | |
b28d0864 | 2160 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2161 | #else |
2162 | #ifdef HAS_SETRESGID | |
b28d0864 | 2163 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2164 | #else |
b28d0864 NIS |
2165 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2166 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2167 | else { |
d8eceb89 | 2168 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2169 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2170 | } |
79072805 LW |
2171 | #endif |
2172 | #endif | |
85e6fe83 | 2173 | #endif |
d8eceb89 | 2174 | PL_egid = PerlProc_getegid(); |
3280af22 | 2175 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2176 | break; |
2177 | case ':': | |
2d8e6c8d | 2178 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2179 | break; |
cd39f2b6 | 2180 | #ifndef MACOS_TRADITIONAL |
79072805 | 2181 | case '0': |
4bc88a62 PS |
2182 | #ifdef HAS_SETPROCTITLE |
2183 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2184 | * show a string from the process struct and provide | |
2185 | * the setproctitle() routine to manipulate that. */ | |
2186 | { | |
2187 | s = SvPV(sv, len); | |
98b76f99 | 2188 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2189 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2190 | * but not the "(perl) suffix from the ps(1) |
2191 | * output, because that's what ps(1) shows if the | |
2192 | * argv[] is modified. */ | |
6f2ad931 | 2193 | setproctitle("-%s", s); |
9aad2c0e | 2194 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2195 | /* This doesn't really work if you assume that |
2196 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2197 | * because in ps(1) output the result will be like | |
2198 | * sprintf("perl: %s (perl)", s) | |
2199 | * I guess this is a security feature: | |
2200 | * one (a user process) cannot get rid of the original name. | |
2201 | * --jhi */ | |
2202 | setproctitle("%s", s); | |
2203 | # endif | |
2204 | } | |
2205 | #endif | |
3280af22 NIS |
2206 | if (!PL_origalen) { |
2207 | s = PL_origargv[0]; | |
79072805 LW |
2208 | s += strlen(s); |
2209 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2210 | for (i = 1; i < PL_origargc; i++) { |
2211 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2212 | #ifdef OS2 |
6b88bc9c | 2213 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2214 | #endif |
fb73857a | 2215 | ) |
379c4362 GS |
2216 | { |
2217 | ++s; | |
2218 | s += strlen(s); /* this one is ok too */ | |
2219 | } | |
fb73857a | 2220 | else |
2221 | break; | |
79072805 | 2222 | } |
bbce6d69 | 2223 | /* can grab env area too? */ |
764df951 | 2224 | if (PL_origenviron && (PL_origenviron[0] == s + 1)) { |
66b1d557 | 2225 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2226 | /* force copy of environment */ |
3280af22 | 2227 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2228 | if (PL_origenviron[i] == s + 1) { |
2229 | ++s; | |
2230 | s += strlen(s); | |
2231 | } | |
fb73857a | 2232 | else |
2233 | break; | |
79072805 | 2234 | } |
3280af22 | 2235 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2236 | } |
a0d0e21e | 2237 | s = SvPV_force(sv,len); |
8990e307 | 2238 | i = len; |
3280af22 NIS |
2239 | if (i >= PL_origalen) { |
2240 | i = PL_origalen; | |
fb73857a | 2241 | /* don't allow system to limit $0 seen by script */ |
2242 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2243 | Copy(s, PL_origargv[0], i, char); |
2244 | s = PL_origargv[0]+i; | |
fb73857a | 2245 | *s = '\0'; |
79072805 LW |
2246 | } |
2247 | else { | |
3280af22 NIS |
2248 | Copy(s, PL_origargv[0], i, char); |
2249 | s = PL_origargv[0]+i; | |
79072805 | 2250 | *s++ = '\0'; |
3280af22 | 2251 | while (++i < PL_origalen) |
8990e307 | 2252 | *s++ = ' '; |
3280af22 NIS |
2253 | s = PL_origargv[0]+i; |
2254 | for (i = 1; i < PL_origargc; i++) | |
2255 | PL_origargv[i] = Nullch; | |
79072805 LW |
2256 | } |
2257 | break; | |
cd39f2b6 | 2258 | #endif |
4d1ff10f | 2259 | #ifdef USE_5005THREADS |
a863c7d1 | 2260 | case '@': |
38a03e6e | 2261 | sv_setsv(thr->errsv, sv); |
a863c7d1 | 2262 | break; |
4d1ff10f | 2263 | #endif /* USE_5005THREADS */ |
79072805 LW |
2264 | } |
2265 | return 0; | |
2266 | } | |
2267 | ||
4d1ff10f | 2268 | #ifdef USE_5005THREADS |
f93b4edd | 2269 | int |
864dbfa3 | 2270 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2271 | { |
b900a521 JH |
2272 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2273 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
a674cc95 | 2274 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd | 2275 | if (MgOWNER(mg)) |
cea2e8a9 | 2276 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2277 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2278 | COND_DESTROY(MgCONDP(mg)); | |
2279 | return 0; | |
2280 | } | |
4d1ff10f | 2281 | #endif /* USE_5005THREADS */ |
f93b4edd | 2282 | |
79072805 | 2283 | I32 |
864dbfa3 | 2284 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2285 | { |
2286 | register char **sigv; | |
2287 | ||
22c35a8c | 2288 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2289 | if (strEQ(sig,*sigv)) |
22c35a8c | 2290 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2291 | #ifdef SIGCLD |
2292 | if (strEQ(sig,"CHLD")) | |
2293 | return SIGCLD; | |
2294 | #endif | |
2295 | #ifdef SIGCHLD | |
2296 | if (strEQ(sig,"CLD")) | |
2297 | return SIGCHLD; | |
2298 | #endif | |
2299 | return 0; | |
2300 | } | |
2301 | ||
df3728a2 | 2302 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2303 | static SV* sig_sv; |
df3728a2 | 2304 | #endif |
84902520 | 2305 | |
ecfc5424 | 2306 | Signal_t |
cea2e8a9 | 2307 | Perl_sighandler(int sig) |
79072805 | 2308 | { |
71d280e3 | 2309 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
acfe0abc | 2310 | dTHXa(PL_curinterp); /* fake TLS, because signals don't do TLS */ |
71d280e3 | 2311 | #else |
cea2e8a9 | 2312 | dTHX; |
71d280e3 | 2313 | #endif |
79072805 | 2314 | dSP; |
00d579c5 | 2315 | GV *gv = Nullgv; |
a0d0e21e | 2316 | HV *st; |
b7953727 | 2317 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2318 | CV *cv = Nullcv; |
533c011a | 2319 | OP *myop = PL_op; |
84902520 | 2320 | U32 flags = 0; |
3280af22 | 2321 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2322 | |
2323 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
acfe0abc | 2324 | PERL_SET_THX(aTHX); /* fake TLS, see above */ |
71d280e3 | 2325 | #endif |
ac27b0f5 | 2326 | |
3280af22 | 2327 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2328 | flags |= 1; |
3280af22 | 2329 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2330 | flags |= 4; |
3280af22 | 2331 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2332 | flags |= 8; |
3280af22 | 2333 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2334 | flags |= 16; |
2335 | ||
22c35a8c | 2336 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2337 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2338 | PL_sig_name[sig]); |
ff0cee69 | 2339 | |
84902520 TB |
2340 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2341 | infinity, so we fix 4 (in fact 5): */ | |
2342 | if (flags & 1) { | |
3280af22 | 2343 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2344 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2345 | } |
ac27b0f5 | 2346 | if (flags & 4) |
3280af22 | 2347 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2348 | if (flags & 8) { |
3280af22 NIS |
2349 | PL_retstack_ix++; |
2350 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2351 | } |
2352 | if (flags & 16) | |
3280af22 | 2353 | PL_scopestack_ix += 1; |
84902520 | 2354 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2355 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2356 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2357 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2358 | |
a0d0e21e | 2359 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2360 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2361 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2362 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2363 | : ((cv && CvGV(cv)) |
2364 | ? GvENAME(CvGV(cv)) | |
2365 | : "__ANON__"))); | |
2366 | goto cleanup; | |
79072805 LW |
2367 | } |
2368 | ||
22c35a8c GS |
2369 | if(PL_psig_name[sig]) { |
2370 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2371 | flags |= 64; |
df3728a2 | 2372 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2373 | sig_sv = sv; |
df3728a2 | 2374 | #endif |
84902520 | 2375 | } else { |
ff0cee69 | 2376 | sv = sv_newmortal(); |
22c35a8c | 2377 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2378 | } |
e336de0d | 2379 | |
e788e7d3 | 2380 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2381 | PUSHMARK(SP); |
79072805 | 2382 | PUSHs(sv); |
79072805 | 2383 | PUTBACK; |
a0d0e21e | 2384 | |
1b266415 | 2385 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2386 | |
d3acc0f7 | 2387 | POPSTACK; |
1b266415 | 2388 | if (SvTRUE(ERRSV)) { |
1d615522 | 2389 | #ifndef PERL_MICRO |
983dbef6 | 2390 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2391 | /* Handler "died", for example to get out of a restart-able read(). |
2392 | * Before we re-do that on its behalf re-enable the signal which was | |
2393 | * blocked by the system when we entered. | |
2394 | */ | |
2395 | sigset_t set; | |
2396 | sigemptyset(&set); | |
2397 | sigaddset(&set,sig); | |
2398 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2399 | #else | |
2400 | /* Not clear if this will work */ | |
2401 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2402 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2403 | #endif |
1d615522 | 2404 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2405 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2406 | } |
00d579c5 | 2407 | cleanup: |
84902520 | 2408 | if (flags & 1) |
3280af22 | 2409 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2410 | if (flags & 4) |
3280af22 | 2411 | PL_markstack_ptr--; |
ac27b0f5 | 2412 | if (flags & 8) |
3280af22 | 2413 | PL_retstack_ix--; |
84902520 | 2414 | if (flags & 16) |
3280af22 | 2415 | PL_scopestack_ix -= 1; |
84902520 TB |
2416 | if (flags & 64) |
2417 | SvREFCNT_dec(sv); | |
533c011a | 2418 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2419 | |
3280af22 NIS |
2420 | PL_Sv = tSv; /* Restore global temporaries. */ |
2421 | PL_Xpv = tXpv; | |
79072805 LW |
2422 | return; |
2423 | } | |
4e35701f NIS |
2424 | |
2425 | ||
51371543 | 2426 | static void |
acfe0abc | 2427 | restore_magic(pTHX_ void *p) |
51371543 | 2428 | { |
48944bdf | 2429 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2430 | SV* sv = mgs->mgs_sv; |
2431 | ||
2432 | if (!sv) | |
2433 | return; | |
2434 | ||
2435 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2436 | { | |
2437 | if (mgs->mgs_flags) | |
2438 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2439 | else | |
2440 | mg_magical(sv); | |
2441 | if (SvGMAGICAL(sv)) | |
2442 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2443 | } | |
2444 | ||
2445 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2446 | ||
2447 | /* If we're still on top of the stack, pop us off. (That condition | |
2448 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2449 | * if it's being called via leave_scope.) | |
2450 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2451 | * may leave alloc gunk on the savestack, and some code | |
2452 | * (e.g. sighandler) doesn't expect that... | |
2453 | */ | |
2454 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2455 | { | |
2456 | I32 popval = SSPOPINT; | |
c76ac1ee | 2457 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2458 | PL_savestack_ix -= 2; |
2459 | popval = SSPOPINT; | |
2460 | assert(popval == SAVEt_ALLOC); | |
2461 | popval = SSPOPINT; | |
2462 | PL_savestack_ix -= popval; | |
2463 | } | |
2464 | ||
2465 | } | |
2466 | ||
2467 | static void | |
acfe0abc | 2468 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2469 | { |
51371543 GS |
2470 | U32 flags = *(U32*)p; |
2471 | ||
2472 | if (flags & 1) | |
2473 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2474 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2475 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2476 | if (flags & 64) |
2477 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2478 | #endif |
51371543 | 2479 | } |