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 | ||
51371543 GS |
28 | static void restore_magic(pTHXo_ void *p); |
29 | static void unwind_handler_stack(pTHXo_ void *p); | |
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 | { |
8fb26106 | 96 | I32 mgs_ix; |
79072805 | 97 | MAGIC* mg; |
c6496cc7 | 98 | MAGIC** mgp; |
760ac839 | 99 | int mgp_valid = 0; |
463ee0b2 | 100 | |
455ece5e AD |
101 | mgs_ix = SSNEW(sizeof(MGS)); |
102 | save_magic(mgs_ix, sv); | |
463ee0b2 | 103 | |
c6496cc7 | 104 | mgp = &SvMAGIC(sv); |
105 | while ((mg = *mgp) != 0) { | |
79072805 | 106 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 | 107 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 108 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 | 109 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
110 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
111 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 112 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 113 | } |
c6496cc7 | 114 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 115 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 116 | mgp = &mg->mg_moremagic; |
760ac839 LW |
117 | mgp_valid = 1; |
118 | } | |
119 | else | |
120 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 121 | } |
463ee0b2 | 122 | |
685f876f | 123 | restore_magic(aTHXo_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
124 | return 0; |
125 | } | |
126 | ||
954c1994 GS |
127 | /* |
128 | =for apidoc mg_set | |
129 | ||
130 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
131 | ||
132 | =cut | |
133 | */ | |
134 | ||
79072805 | 135 | int |
864dbfa3 | 136 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 137 | { |
8fb26106 | 138 | I32 mgs_ix; |
79072805 | 139 | MAGIC* mg; |
463ee0b2 LW |
140 | MAGIC* nextmg; |
141 | ||
455ece5e AD |
142 | mgs_ix = SSNEW(sizeof(MGS)); |
143 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
144 | |
145 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 146 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 147 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
148 | if (mg->mg_flags & MGf_GSKIP) { |
149 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 150 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 151 | } |
2b260de0 | 152 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 153 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 154 | } |
463ee0b2 | 155 | |
685f876f | 156 | restore_magic(aTHXo_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
157 | return 0; |
158 | } | |
159 | ||
954c1994 GS |
160 | /* |
161 | =for apidoc mg_length | |
162 | ||
163 | Report on the SV's length. See C<sv_magic>. | |
164 | ||
165 | =cut | |
166 | */ | |
167 | ||
79072805 | 168 | U32 |
864dbfa3 | 169 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
170 | { |
171 | MAGIC* mg; | |
463ee0b2 | 172 | STRLEN len; |
463ee0b2 | 173 | |
79072805 LW |
174 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
175 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 176 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 177 | I32 mgs_ix; |
48e43a1c | 178 | |
455ece5e AD |
179 | mgs_ix = SSNEW(sizeof(MGS)); |
180 | save_magic(mgs_ix, sv); | |
a0d0e21e | 181 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 182 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
685f876f | 183 | restore_magic(aTHXo_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
184 | return len; |
185 | } | |
186 | } | |
187 | ||
497b47a8 | 188 | (void)SvPV(sv, len); |
463ee0b2 | 189 | return len; |
79072805 LW |
190 | } |
191 | ||
8fb26106 | 192 | I32 |
864dbfa3 | 193 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
194 | { |
195 | MAGIC* mg; | |
196 | I32 len; | |
ac27b0f5 | 197 | |
93965878 NIS |
198 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
199 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 200 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 201 | I32 mgs_ix; |
455ece5e AD |
202 | |
203 | mgs_ix = SSNEW(sizeof(MGS)); | |
204 | save_magic(mgs_ix, sv); | |
93965878 | 205 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 206 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
685f876f | 207 | restore_magic(aTHXo_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
208 | return len; |
209 | } | |
210 | } | |
211 | ||
212 | switch(SvTYPE(sv)) { | |
213 | case SVt_PVAV: | |
214 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
215 | return len; | |
216 | case SVt_PVHV: | |
217 | /* FIXME */ | |
218 | default: | |
cea2e8a9 | 219 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
220 | break; |
221 | } | |
222 | return 0; | |
223 | } | |
224 | ||
954c1994 GS |
225 | /* |
226 | =for apidoc mg_clear | |
227 | ||
228 | Clear something magical that the SV represents. See C<sv_magic>. | |
229 | ||
230 | =cut | |
231 | */ | |
232 | ||
79072805 | 233 | int |
864dbfa3 | 234 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 235 | { |
8fb26106 | 236 | I32 mgs_ix; |
79072805 | 237 | MAGIC* mg; |
463ee0b2 | 238 | |
455ece5e AD |
239 | mgs_ix = SSNEW(sizeof(MGS)); |
240 | save_magic(mgs_ix, sv); | |
463ee0b2 | 241 | |
79072805 LW |
242 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
243 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
244 | /* omit GSKIP -- never set here */ |
245 | ||
2b260de0 | 246 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 247 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 248 | } |
463ee0b2 | 249 | |
685f876f | 250 | restore_magic(aTHXo_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
251 | return 0; |
252 | } | |
253 | ||
954c1994 GS |
254 | /* |
255 | =for apidoc mg_find | |
256 | ||
257 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
258 | ||
259 | =cut | |
260 | */ | |
261 | ||
93a17b20 | 262 | MAGIC* |
864dbfa3 | 263 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
264 | { |
265 | MAGIC* mg; | |
3f8f4626 DC |
266 | if (!sv) |
267 | return 0; | |
93a17b20 LW |
268 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
269 | if (mg->mg_type == type) | |
270 | return mg; | |
271 | } | |
272 | return 0; | |
273 | } | |
274 | ||
954c1994 GS |
275 | /* |
276 | =for apidoc mg_copy | |
277 | ||
278 | Copies the magic from one SV to another. See C<sv_magic>. | |
279 | ||
280 | =cut | |
281 | */ | |
282 | ||
79072805 | 283 | int |
864dbfa3 | 284 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 285 | { |
463ee0b2 | 286 | int count = 0; |
79072805 | 287 | MAGIC* mg; |
463ee0b2 LW |
288 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
289 | if (isUPPER(mg->mg_type)) { | |
33c27489 | 290 | sv_magic(nsv, |
14befaf4 DM |
291 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
292 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
293 | ? sv : mg->mg_obj, | |
33c27489 | 294 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 295 | count++; |
79072805 | 296 | } |
79072805 | 297 | } |
463ee0b2 | 298 | return count; |
79072805 LW |
299 | } |
300 | ||
954c1994 GS |
301 | /* |
302 | =for apidoc mg_free | |
303 | ||
304 | Free any magic storage used by the SV. See C<sv_magic>. | |
305 | ||
306 | =cut | |
307 | */ | |
308 | ||
79072805 | 309 | int |
864dbfa3 | 310 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
311 | { |
312 | MAGIC* mg; | |
313 | MAGIC* moremagic; | |
314 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
315 | MGVTBL* vtbl = mg->mg_virtual; | |
316 | moremagic = mg->mg_moremagic; | |
2b260de0 | 317 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 318 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 319 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
565764a8 | 320 | if (mg->mg_len >= 0) |
88e89b8a | 321 | Safefree(mg->mg_ptr); |
565764a8 | 322 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 323 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 324 | } |
85e6fe83 | 325 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 326 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
327 | Safefree(mg); |
328 | } | |
329 | SvMAGIC(sv) = 0; | |
330 | return 0; | |
331 | } | |
332 | ||
d460ef45 | 333 | |
79072805 LW |
334 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
335 | #include <signal.h> | |
336 | #endif | |
337 | ||
942e002e | 338 | U32 |
864dbfa3 | 339 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 340 | { |
6cef1e77 | 341 | register REGEXP *rx; |
6cef1e77 | 342 | |
aaa362c4 | 343 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
344 | if (mg->mg_obj) /* @+ */ |
345 | return rx->nparens; | |
346 | else /* @- */ | |
347 | return rx->lastparen; | |
348 | } | |
ac27b0f5 | 349 | |
942e002e | 350 | return (U32)-1; |
6cef1e77 IZ |
351 | } |
352 | ||
353 | int | |
864dbfa3 | 354 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 355 | { |
6cef1e77 | 356 | register I32 paren; |
cf93c79d | 357 | register I32 s; |
6cef1e77 IZ |
358 | register I32 i; |
359 | register REGEXP *rx; | |
cf93c79d | 360 | I32 t; |
6cef1e77 | 361 | |
aaa362c4 | 362 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
363 | paren = mg->mg_len; |
364 | if (paren < 0) | |
365 | return 0; | |
366 | if (paren <= rx->nparens && | |
cf93c79d IZ |
367 | (s = rx->startp[paren]) != -1 && |
368 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
369 | { |
370 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 371 | i = t; |
6cef1e77 | 372 | else /* @- */ |
cf93c79d | 373 | i = s; |
1aa99e6b IH |
374 | |
375 | if (i > 0 && DO_UTF8(PL_reg_sv)) { | |
376 | char *b = rx->subbeg; | |
0064a8a9 JH |
377 | if (b) |
378 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 379 | } |
0064a8a9 JH |
380 | |
381 | sv_setiv(sv, i); | |
6cef1e77 IZ |
382 | } |
383 | } | |
384 | return 0; | |
385 | } | |
386 | ||
e4b89193 | 387 | int |
a29d06ed MG |
388 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
389 | { | |
a29d06ed | 390 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
391 | /* NOT REACHED */ |
392 | return 0; | |
a29d06ed MG |
393 | } |
394 | ||
93a17b20 | 395 | U32 |
864dbfa3 | 396 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
397 | { |
398 | register I32 paren; | |
93a17b20 | 399 | register I32 i; |
d9f97599 | 400 | register REGEXP *rx; |
a197cbdd | 401 | I32 s1, t1; |
93a17b20 LW |
402 | |
403 | switch (*mg->mg_ptr) { | |
404 | case '1': case '2': case '3': case '4': | |
405 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 406 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 407 | |
ffc61ed2 | 408 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 409 | getparen: |
d9f97599 | 410 | if (paren <= rx->nparens && |
cf93c79d IZ |
411 | (s1 = rx->startp[paren]) != -1 && |
412 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 413 | { |
cf93c79d | 414 | i = t1 - s1; |
a197cbdd | 415 | getlen: |
ffc61ed2 JH |
416 | if (i > 0 && DO_UTF8(PL_reg_sv)) { |
417 | char *s = rx->subbeg + s1; | |
a197cbdd | 418 | char *send = rx->subbeg + t1; |
ffc61ed2 | 419 | |
60425c38 JH |
420 | i = t1 - s1; |
421 | if (is_utf8_string((U8*)s, i)) | |
422 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 423 | } |
ffc61ed2 | 424 | if (i < 0) |
0844c848 | 425 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 426 | return i; |
93a17b20 | 427 | } |
93a17b20 | 428 | } |
748a9306 | 429 | return 0; |
93a17b20 | 430 | case '+': |
aaa362c4 | 431 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 432 | paren = rx->lastparen; |
13f57bf8 CS |
433 | if (paren) |
434 | goto getparen; | |
93a17b20 | 435 | } |
748a9306 | 436 | return 0; |
a01268b5 JH |
437 | case '\016': /* ^N */ |
438 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
439 | paren = rx->lastcloseparen; | |
440 | if (paren) | |
441 | goto getparen; | |
442 | } | |
443 | return 0; | |
93a17b20 | 444 | case '`': |
aaa362c4 | 445 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
446 | if (rx->startp[0] != -1) { |
447 | i = rx->startp[0]; | |
a197cbdd GS |
448 | if (i > 0) { |
449 | s1 = 0; | |
450 | t1 = i; | |
451 | goto getlen; | |
452 | } | |
93a17b20 | 453 | } |
93a17b20 | 454 | } |
748a9306 | 455 | return 0; |
93a17b20 | 456 | case '\'': |
aaa362c4 | 457 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
458 | if (rx->endp[0] != -1) { |
459 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
460 | if (i > 0) { |
461 | s1 = rx->endp[0]; | |
462 | t1 = rx->sublen; | |
463 | goto getlen; | |
464 | } | |
93a17b20 | 465 | } |
93a17b20 | 466 | } |
748a9306 | 467 | return 0; |
93a17b20 LW |
468 | } |
469 | magic_get(sv,mg); | |
2d8e6c8d GS |
470 | if (!SvPOK(sv) && SvNIOK(sv)) { |
471 | STRLEN n_a; | |
472 | sv_2pv(sv, &n_a); | |
473 | } | |
93a17b20 LW |
474 | if (SvPOK(sv)) |
475 | return SvCUR(sv); | |
476 | return 0; | |
477 | } | |
478 | ||
79072805 | 479 | int |
864dbfa3 | 480 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
481 | { |
482 | register I32 paren; | |
483 | register char *s; | |
484 | register I32 i; | |
d9f97599 | 485 | register REGEXP *rx; |
79072805 LW |
486 | |
487 | switch (*mg->mg_ptr) { | |
748a9306 | 488 | case '\001': /* ^A */ |
3280af22 | 489 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 490 | break; |
49460fe6 NIS |
491 | case '\003': /* ^C */ |
492 | sv_setiv(sv, (IV)PL_minus_c); | |
493 | break; | |
494 | ||
79072805 | 495 | case '\004': /* ^D */ |
aea4f609 | 496 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 497 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 498 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 499 | #endif |
79072805 | 500 | break; |
28f23441 | 501 | case '\005': /* ^E */ |
cd39f2b6 JH |
502 | #ifdef MACOS_TRADITIONAL |
503 | { | |
504 | char msg[256]; | |
ac27b0f5 | 505 | |
bf4acbe4 GS |
506 | sv_setnv(sv,(double)gMacPerl_OSErr); |
507 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); | |
cd39f2b6 JH |
508 | } |
509 | #else | |
28f23441 | 510 | #ifdef VMS |
511 | { | |
512 | # include <descrip.h> | |
513 | # include <starlet.h> | |
514 | char msg[255]; | |
515 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 516 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 517 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
518 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
519 | else | |
520 | sv_setpv(sv,""); | |
521 | } | |
522 | #else | |
88e89b8a | 523 | #ifdef OS2 |
fb73857a | 524 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 525 | sv_setnv(sv, (NV)errno); |
fb73857a | 526 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
527 | } else { | |
017f25f1 IZ |
528 | if (errno != errno_isOS2) { |
529 | int tmp = _syserrno(); | |
530 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
531 | Perl_rc = tmp; | |
532 | } | |
65202027 | 533 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 534 | sv_setpv(sv, os2error(Perl_rc)); |
535 | } | |
88e89b8a | 536 | #else |
22fae026 TM |
537 | #ifdef WIN32 |
538 | { | |
539 | DWORD dwErr = GetLastError(); | |
65202027 | 540 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 541 | if (dwErr) |
76e3520e | 542 | { |
0cb96387 | 543 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 544 | } |
22fae026 TM |
545 | else |
546 | sv_setpv(sv, ""); | |
547 | SetLastError(dwErr); | |
548 | } | |
549 | #else | |
65202027 | 550 | sv_setnv(sv, (NV)errno); |
28f23441 | 551 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
552 | #endif | |
88e89b8a | 553 | #endif |
22fae026 | 554 | #endif |
cd39f2b6 | 555 | #endif |
946ec16e | 556 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 557 | break; |
79072805 | 558 | case '\006': /* ^F */ |
3280af22 | 559 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 560 | break; |
a0d0e21e | 561 | case '\010': /* ^H */ |
3280af22 | 562 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 563 | break; |
9d116dd7 | 564 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
565 | if (PL_inplace) |
566 | sv_setpv(sv, PL_inplace); | |
79072805 | 567 | else |
3280af22 | 568 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 569 | break; |
ac27b0f5 NIS |
570 | case '\017': /* ^O & ^OPEN */ |
571 | if (*(mg->mg_ptr+1) == '\0') | |
572 | sv_setpv(sv, PL_osname); | |
573 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
574 | if (!PL_compiling.cop_io) | |
575 | sv_setsv(sv, &PL_sv_undef); | |
576 | else { | |
577 | sv_setsv(sv, PL_compiling.cop_io); | |
578 | } | |
579 | } | |
28f23441 | 580 | break; |
79072805 | 581 | case '\020': /* ^P */ |
3280af22 | 582 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 583 | break; |
fb73857a | 584 | case '\023': /* ^S */ |
d58bf5aa | 585 | { |
3280af22 | 586 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 587 | (void)SvOK_off(sv); |
3280af22 | 588 | else if (PL_in_eval) |
6dc8a9e4 | 589 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
590 | else |
591 | sv_setiv(sv, 0); | |
d58bf5aa | 592 | } |
fb73857a | 593 | break; |
79072805 | 594 | case '\024': /* ^T */ |
88e89b8a | 595 | #ifdef BIG_TIME |
6b88bc9c | 596 | sv_setnv(sv, PL_basetime); |
88e89b8a | 597 | #else |
3280af22 | 598 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 599 | #endif |
79072805 | 600 | break; |
46487f74 | 601 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
602 | if (*(mg->mg_ptr+1) == '\0') |
603 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
6a818117 | 604 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
d3a7d8c7 GS |
605 | if (PL_compiling.cop_warnings == pWARN_NONE || |
606 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
607 | { |
608 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
609 | } | |
d3a7d8c7 | 610 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 611 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 612 | } |
4438c4b7 JH |
613 | else { |
614 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 615 | } |
d3a7d8c7 | 616 | SvPOK_only(sv); |
4438c4b7 | 617 | } |
46487f74 GS |
618 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
619 | sv_setiv(sv, (IV)PL_widesyscalls); | |
79072805 LW |
620 | break; |
621 | case '1': case '2': case '3': case '4': | |
622 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 623 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
624 | I32 s1, t1; |
625 | ||
a863c7d1 MB |
626 | /* |
627 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
628 | * XXX Does the new way break anything? | |
629 | */ | |
ffc61ed2 | 630 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 631 | getparen: |
d9f97599 | 632 | if (paren <= rx->nparens && |
cf93c79d IZ |
633 | (s1 = rx->startp[paren]) != -1 && |
634 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 635 | { |
cf93c79d IZ |
636 | i = t1 - s1; |
637 | s = rx->subbeg + s1; | |
01ec43d0 | 638 | if (!rx->subbeg) |
c2e66d9e GS |
639 | break; |
640 | ||
13f57bf8 | 641 | getrx: |
748a9306 | 642 | if (i >= 0) { |
b7953727 | 643 | bool was_tainted = FALSE; |
3280af22 NIS |
644 | if (PL_tainting) { |
645 | was_tainted = PL_tainted; | |
646 | PL_tainted = FALSE; | |
13f57bf8 | 647 | } |
cf93c79d | 648 | sv_setpvn(sv, s, i); |
bdc14a33 | 649 | if (PL_reg_sv && DO_UTF8(PL_reg_sv) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
650 | SvUTF8_on(sv); |
651 | else | |
652 | SvUTF8_off(sv); | |
3280af22 NIS |
653 | if (PL_tainting) |
654 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
655 | break; |
656 | } | |
79072805 | 657 | } |
79072805 | 658 | } |
3280af22 | 659 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
660 | break; |
661 | case '+': | |
aaa362c4 | 662 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 663 | paren = rx->lastparen; |
a0d0e21e LW |
664 | if (paren) |
665 | goto getparen; | |
79072805 | 666 | } |
3280af22 | 667 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 668 | break; |
a01268b5 JH |
669 | case '\016': /* ^N */ |
670 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
671 | paren = rx->lastcloseparen; | |
672 | if (paren) | |
673 | goto getparen; | |
674 | } | |
675 | sv_setsv(sv,&PL_sv_undef); | |
676 | break; | |
79072805 | 677 | case '`': |
aaa362c4 | 678 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
679 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
680 | i = rx->startp[0]; | |
13f57bf8 | 681 | goto getrx; |
79072805 | 682 | } |
79072805 | 683 | } |
3280af22 | 684 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
685 | break; |
686 | case '\'': | |
aaa362c4 | 687 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
688 | if (rx->subbeg && rx->endp[0] != -1) { |
689 | s = rx->subbeg + rx->endp[0]; | |
690 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 691 | goto getrx; |
79072805 | 692 | } |
79072805 | 693 | } |
3280af22 | 694 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
695 | break; |
696 | case '.': | |
697 | #ifndef lint | |
3280af22 | 698 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 699 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
700 | } |
701 | #endif | |
702 | break; | |
703 | case '?': | |
809a5acc | 704 | { |
809a5acc | 705 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 706 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
707 | LvTARGOFF(sv) = PL_statusvalue; |
708 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 709 | #endif |
809a5acc | 710 | } |
79072805 LW |
711 | break; |
712 | case '^': | |
3280af22 | 713 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
714 | if (s) |
715 | sv_setpv(sv,s); | |
716 | else { | |
3280af22 | 717 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
718 | sv_catpv(sv,"_TOP"); |
719 | } | |
720 | break; | |
721 | case '~': | |
3280af22 | 722 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 723 | if (!s) |
3280af22 | 724 | s = GvENAME(PL_defoutgv); |
79072805 LW |
725 | sv_setpv(sv,s); |
726 | break; | |
727 | #ifndef lint | |
728 | case '=': | |
3280af22 | 729 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
730 | break; |
731 | case '-': | |
3280af22 | 732 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
733 | break; |
734 | case '%': | |
3280af22 | 735 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
736 | break; |
737 | #endif | |
738 | case ':': | |
739 | break; | |
740 | case '/': | |
741 | break; | |
742 | case '[': | |
3280af22 | 743 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
744 | break; |
745 | case '|': | |
3280af22 | 746 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
747 | break; |
748 | case ',': | |
79072805 LW |
749 | break; |
750 | case '\\': | |
79072805 LW |
751 | break; |
752 | case '#': | |
3280af22 | 753 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
754 | break; |
755 | case '!': | |
a5f75d66 | 756 | #ifdef VMS |
65202027 | 757 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 758 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 759 | #else |
88e89b8a | 760 | { |
761 | int saveerrno = errno; | |
65202027 | 762 | sv_setnv(sv, (NV)errno); |
88e89b8a | 763 | #ifdef OS2 |
ed344e4f IZ |
764 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
765 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 766 | else |
a5f75d66 | 767 | #endif |
2304df62 | 768 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 769 | errno = saveerrno; |
770 | } | |
771 | #endif | |
946ec16e | 772 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
773 | break; |
774 | case '<': | |
3280af22 | 775 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
776 | break; |
777 | case '>': | |
3280af22 | 778 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
779 | break; |
780 | case '(': | |
3280af22 | 781 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 782 | #ifdef HAS_GETGROUPS |
785fb66b | 783 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 784 | #endif |
79072805 LW |
785 | goto add_groups; |
786 | case ')': | |
3280af22 | 787 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 788 | #ifdef HAS_GETGROUPS |
785fb66b | 789 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 790 | #endif |
79072805 | 791 | add_groups: |
79072805 | 792 | #ifdef HAS_GETGROUPS |
79072805 | 793 | { |
a0d0e21e | 794 | Groups_t gary[NGROUPS]; |
79072805 | 795 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 796 | while (--i >= 0) |
785fb66b | 797 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
798 | } |
799 | #endif | |
155aba94 | 800 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
801 | break; |
802 | case '*': | |
803 | break; | |
cd39f2b6 | 804 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
805 | case '0': |
806 | break; | |
cd39f2b6 | 807 | #endif |
a863c7d1 MB |
808 | #ifdef USE_THREADS |
809 | case '@': | |
38a03e6e | 810 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
811 | break; |
812 | #endif /* USE_THREADS */ | |
79072805 | 813 | } |
a0d0e21e | 814 | return 0; |
79072805 LW |
815 | } |
816 | ||
817 | int | |
864dbfa3 | 818 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
819 | { |
820 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
821 | ||
822 | if (uf && uf->uf_val) | |
24f81a43 | 823 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
824 | return 0; |
825 | } | |
826 | ||
827 | int | |
864dbfa3 | 828 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
829 | { |
830 | register char *s; | |
88e89b8a | 831 | char *ptr; |
5aabfad6 | 832 | STRLEN len, klen; |
a0d0e21e | 833 | I32 i; |
1e422769 | 834 | |
a0d0e21e | 835 | s = SvPV(sv,len); |
5aabfad6 | 836 | ptr = MgPV(mg,klen); |
88e89b8a | 837 | my_setenv(ptr, s); |
1e422769 | 838 | |
a0d0e21e LW |
839 | #ifdef DYNAMIC_ENV_FETCH |
840 | /* We just undefd an environment var. Is a replacement */ | |
841 | /* waiting in the wings? */ | |
842 | if (!len) { | |
5aabfad6 | 843 | SV **valp; |
6b88bc9c | 844 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 845 | s = SvPV(*valp, len); |
a0d0e21e LW |
846 | } |
847 | #endif | |
1e422769 | 848 | |
39e571d4 | 849 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
850 | /* And you'll never guess what the dog had */ |
851 | /* in its mouth... */ | |
3280af22 | 852 | if (PL_tainting) { |
1e422769 | 853 | MgTAINTEDDIR_off(mg); |
854 | #ifdef VMS | |
5aabfad6 | 855 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 856 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
857 | struct stat sbuf; | |
858 | int i = 0, j = 0; | |
859 | ||
860 | do { /* DCL$PATH may be a search list */ | |
861 | while (1) { /* as may dev portion of any element */ | |
862 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
863 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
864 | cando_by_name(S_IWUSR,0,elt) ) { | |
865 | MgTAINTEDDIR_on(mg); | |
866 | return 0; | |
867 | } | |
868 | } | |
869 | if ((cp = strchr(elt, ':')) != Nullch) | |
870 | *cp = '\0'; | |
871 | if (my_trnlnm(elt, eltbuf, j++)) | |
872 | elt = eltbuf; | |
873 | else | |
874 | break; | |
875 | } | |
876 | j = 0; | |
877 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
878 | } | |
879 | #endif /* VMS */ | |
5aabfad6 | 880 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 881 | char *strend = s + len; |
463ee0b2 LW |
882 | |
883 | while (s < strend) { | |
96827780 | 884 | char tmpbuf[256]; |
1e422769 | 885 | struct stat st; |
96827780 | 886 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 887 | s, strend, ':', &i); |
463ee0b2 | 888 | s++; |
96827780 MB |
889 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
890 | || *tmpbuf != '/' | |
c6ed36e1 | 891 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 892 | MgTAINTEDDIR_on(mg); |
1e422769 | 893 | return 0; |
894 | } | |
463ee0b2 | 895 | } |
79072805 LW |
896 | } |
897 | } | |
39e571d4 | 898 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 899 | |
79072805 LW |
900 | return 0; |
901 | } | |
902 | ||
903 | int | |
864dbfa3 | 904 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 905 | { |
2d8e6c8d GS |
906 | STRLEN n_a; |
907 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
908 | return 0; |
909 | } | |
910 | ||
88e89b8a | 911 | int |
864dbfa3 | 912 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 913 | { |
914 | #if defined(VMS) | |
cea2e8a9 | 915 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 916 | #else |
3280af22 | 917 | if (PL_localizing) { |
fb73857a | 918 | HE* entry; |
2d8e6c8d | 919 | STRLEN n_a; |
fb73857a | 920 | magic_clear_all_env(sv,mg); |
921 | hv_iterinit((HV*)sv); | |
155aba94 | 922 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 923 | I32 keylen; |
924 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 925 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 926 | } |
927 | } | |
928 | #endif | |
929 | return 0; | |
930 | } | |
931 | ||
932 | int | |
864dbfa3 | 933 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 934 | { |
ed79a026 | 935 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 936 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 937 | #else |
7766f137 GS |
938 | # ifdef PERL_IMPLICIT_SYS |
939 | PerlEnv_clearenv(); | |
940 | # else | |
941 | # ifdef WIN32 | |
3e3baf6d TB |
942 | char *envv = GetEnvironmentStrings(); |
943 | char *cur = envv; | |
944 | STRLEN len; | |
945 | while (*cur) { | |
946 | char *end = strchr(cur,'='); | |
947 | if (end && end != cur) { | |
948 | *end = '\0'; | |
949 | my_setenv(cur,Nullch); | |
950 | *end = '='; | |
ac5c734f | 951 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
952 | } |
953 | else if ((len = strlen(cur))) | |
954 | cur += len+1; | |
955 | } | |
956 | FreeEnvironmentStrings(envv); | |
7766f137 | 957 | # else |
5acaa6ec | 958 | #ifdef USE_ENVIRON_ARRAY |
7766f137 | 959 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 HM |
960 | I32 i; |
961 | ||
3280af22 | 962 | if (environ == PL_origenviron) |
f2517201 | 963 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
964 | else |
965 | for (i = 0; environ[i]; i++) | |
f2517201 | 966 | safesysfree(environ[i]); |
7766f137 | 967 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 968 | |
66b1d557 HM |
969 | environ[0] = Nullch; |
970 | ||
5acaa6ec | 971 | #endif /* USE_ENVIRON_ARRAY */ |
7766f137 GS |
972 | # endif /* WIN32 */ |
973 | # endif /* PERL_IMPLICIT_SYS */ | |
f2517201 | 974 | #endif /* VMS */ |
3e3baf6d | 975 | return 0; |
66b1d557 HM |
976 | } |
977 | ||
64ca3a65 | 978 | #ifndef PERL_MICRO |
66b1d557 | 979 | int |
864dbfa3 | 980 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 981 | { |
982 | I32 i; | |
2d8e6c8d | 983 | STRLEN n_a; |
88e89b8a | 984 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 985 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 986 | if (i) { |
22c35a8c GS |
987 | if(PL_psig_ptr[i]) |
988 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 989 | else { |
ff68c719 | 990 | Sighandler_t sigstate = rsignal_state(i); |
991 | ||
88e89b8a | 992 | /* cache state so we don't fetch it again */ |
ff68c719 | 993 | if(sigstate == SIG_IGN) |
88e89b8a | 994 | sv_setpv(sv,"IGNORE"); |
995 | else | |
3280af22 | 996 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 997 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 998 | SvTEMP_off(sv); |
999 | } | |
1000 | } | |
1001 | return 0; | |
1002 | } | |
1003 | int | |
864dbfa3 | 1004 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1005 | { |
1006 | I32 i; | |
2d8e6c8d | 1007 | STRLEN n_a; |
88e89b8a | 1008 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 1009 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1010 | if (i) { |
22c35a8c GS |
1011 | if(PL_psig_ptr[i]) { |
1012 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1013 | PL_psig_ptr[i]=0; | |
88e89b8a | 1014 | } |
22c35a8c GS |
1015 | if(PL_psig_name[i]) { |
1016 | SvREFCNT_dec(PL_psig_name[i]); | |
1017 | PL_psig_name[i]=0; | |
88e89b8a | 1018 | } |
1019 | } | |
1020 | return 0; | |
1021 | } | |
3d37d572 | 1022 | |
0a8e0eff NIS |
1023 | void |
1024 | Perl_raise_signal(pTHX_ int sig) | |
1025 | { | |
1026 | /* Set a flag to say this signal is pending */ | |
1027 | PL_psig_pend[sig]++; | |
1028 | /* And one to say _a_ signal is pending */ | |
1029 | PL_sig_pending = 1; | |
1030 | } | |
1031 | ||
1032 | Signal_t | |
1033 | Perl_csighandler(int sig) | |
1034 | { | |
1035 | #ifdef PERL_OLD_SIGNALS | |
1036 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1037 | (*PL_sighandlerp)(sig); | |
1038 | #else | |
1039 | dTHX; | |
1040 | Perl_raise_signal(aTHX_ sig); | |
1041 | #endif | |
1042 | } | |
1043 | ||
1044 | void | |
1045 | Perl_despatch_signals(pTHX) | |
1046 | { | |
1047 | int sig; | |
1048 | PL_sig_pending = 0; | |
1049 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1050 | if (PL_psig_pend[sig]) { | |
1051 | PL_psig_pend[sig] = 0; | |
1052 | (*PL_sighandlerp)(sig); | |
1053 | } | |
1054 | } | |
1055 | } | |
1056 | ||
85e6fe83 | 1057 | int |
864dbfa3 | 1058 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1059 | { |
1060 | register char *s; | |
1061 | I32 i; | |
b7953727 | 1062 | SV** svp = 0; |
e72dc28c | 1063 | STRLEN len; |
a0d0e21e | 1064 | |
e72dc28c | 1065 | s = MgPV(mg,len); |
748a9306 LW |
1066 | if (*s == '_') { |
1067 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1068 | svp = &PL_diehook; |
748a9306 | 1069 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1070 | svp = &PL_warnhook; |
748a9306 | 1071 | else |
cea2e8a9 | 1072 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1073 | i = 0; |
4633a7c4 LW |
1074 | if (*svp) { |
1075 | SvREFCNT_dec(*svp); | |
1076 | *svp = 0; | |
1077 | } | |
748a9306 LW |
1078 | } |
1079 | else { | |
1080 | i = whichsig(s); /* ...no, a brick */ | |
1081 | if (!i) { | |
e476b1b5 | 1082 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 1083 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
1084 | return 0; |
1085 | } | |
22c35a8c GS |
1086 | SvREFCNT_dec(PL_psig_name[i]); |
1087 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1088 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1089 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1090 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1091 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1092 | } |
a0d0e21e | 1093 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1094 | if (i) |
0a8e0eff | 1095 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1096 | else |
1097 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1098 | return 0; |
1099 | } | |
e72dc28c | 1100 | s = SvPV_force(sv,len); |
748a9306 LW |
1101 | if (strEQ(s,"IGNORE")) { |
1102 | if (i) | |
ff68c719 | 1103 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1104 | else |
1105 | *svp = 0; | |
1106 | } | |
1107 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1108 | if (i) | |
ff68c719 | 1109 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1110 | else |
1111 | *svp = 0; | |
1112 | } | |
79072805 | 1113 | else { |
5aabfad6 | 1114 | /* |
1115 | * We should warn if HINT_STRICT_REFS, but without | |
1116 | * access to a known hint bit in a known OP, we can't | |
1117 | * tell whether HINT_STRICT_REFS is in force or not. | |
1118 | */ | |
46fc3d4c | 1119 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1120 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1121 | if (i) |
0a8e0eff | 1122 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1123 | else |
1124 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1125 | } |
1126 | return 0; | |
1127 | } | |
64ca3a65 | 1128 | #endif /* !PERL_MICRO */ |
79072805 LW |
1129 | |
1130 | int | |
864dbfa3 | 1131 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1132 | { |
3280af22 | 1133 | PL_sub_generation++; |
463ee0b2 LW |
1134 | return 0; |
1135 | } | |
1136 | ||
1137 | int | |
864dbfa3 | 1138 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1139 | { |
a0d0e21e | 1140 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1141 | PL_amagic_generation++; |
463ee0b2 | 1142 | |
a0d0e21e LW |
1143 | return 0; |
1144 | } | |
463ee0b2 | 1145 | |
946ec16e | 1146 | int |
864dbfa3 | 1147 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1148 | { |
1149 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1150 | I32 i = 0; |
497b47a8 | 1151 | |
6ff81951 | 1152 | if (hv) { |
497b47a8 JH |
1153 | (void) hv_iterinit(hv); |
1154 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1155 | i = HvKEYS(hv); | |
1156 | else { | |
1157 | while (hv_iternext(hv)) | |
1158 | i++; | |
1159 | } | |
6ff81951 GS |
1160 | } |
1161 | ||
1162 | sv_setiv(sv, (IV)i); | |
1163 | return 0; | |
1164 | } | |
1165 | ||
1166 | int | |
864dbfa3 | 1167 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1168 | { |
1169 | if (LvTARG(sv)) { | |
1170 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1171 | } |
1172 | return 0; | |
ac27b0f5 | 1173 | } |
946ec16e | 1174 | |
e336de0d | 1175 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1176 | STATIC int |
cea2e8a9 | 1177 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1178 | { |
1179 | dSP; | |
463ee0b2 | 1180 | |
924508f0 GS |
1181 | PUSHMARK(SP); |
1182 | EXTEND(SP, n); | |
33c27489 | 1183 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1184 | if (n > 1) { |
93965878 | 1185 | if (mg->mg_ptr) { |
565764a8 | 1186 | if (mg->mg_len >= 0) |
79cb57f6 | 1187 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1188 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1189 | PUSHs((SV*)mg->mg_ptr); |
1190 | } | |
14befaf4 | 1191 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1192 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1193 | } |
1194 | } | |
1195 | if (n > 2) { | |
1196 | PUSHs(val); | |
88e89b8a | 1197 | } |
463ee0b2 LW |
1198 | PUTBACK; |
1199 | ||
864dbfa3 | 1200 | return call_method(meth, flags); |
946ec16e | 1201 | } |
1202 | ||
76e3520e | 1203 | STATIC int |
cea2e8a9 | 1204 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1205 | { |
1206 | dSP; | |
463ee0b2 | 1207 | |
a0d0e21e LW |
1208 | ENTER; |
1209 | SAVETMPS; | |
e788e7d3 | 1210 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1211 | |
33c27489 | 1212 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1213 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1214 | } |
463ee0b2 | 1215 | |
d3acc0f7 | 1216 | POPSTACK; |
a0d0e21e LW |
1217 | FREETMPS; |
1218 | LEAVE; | |
1219 | return 0; | |
1220 | } | |
463ee0b2 | 1221 | |
a0d0e21e | 1222 | int |
864dbfa3 | 1223 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1224 | { |
1225 | magic_methpack(sv,mg,"FETCH"); | |
1226 | if (mg->mg_ptr) | |
1227 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1228 | return 0; |
1229 | } | |
1230 | ||
1231 | int | |
864dbfa3 | 1232 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1233 | { |
1234 | dSP; | |
a60c0954 | 1235 | ENTER; |
e788e7d3 | 1236 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1237 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1238 | POPSTACK; |
a60c0954 | 1239 | LEAVE; |
463ee0b2 LW |
1240 | return 0; |
1241 | } | |
1242 | ||
1243 | int | |
864dbfa3 | 1244 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1245 | { |
a0d0e21e LW |
1246 | return magic_methpack(sv,mg,"DELETE"); |
1247 | } | |
463ee0b2 | 1248 | |
93965878 NIS |
1249 | |
1250 | U32 | |
864dbfa3 | 1251 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1252 | { |
e336de0d | 1253 | dSP; |
93965878 NIS |
1254 | U32 retval = 0; |
1255 | ||
1256 | ENTER; | |
1257 | SAVETMPS; | |
e788e7d3 | 1258 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1259 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1260 | sv = *PL_stack_sp--; |
a60c0954 | 1261 | retval = (U32) SvIV(sv)-1; |
93965878 | 1262 | } |
d3acc0f7 | 1263 | POPSTACK; |
93965878 NIS |
1264 | FREETMPS; |
1265 | LEAVE; | |
1266 | return retval; | |
1267 | } | |
1268 | ||
cea2e8a9 GS |
1269 | int |
1270 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1271 | { |
1272 | dSP; | |
463ee0b2 | 1273 | |
e336de0d | 1274 | ENTER; |
e788e7d3 | 1275 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1276 | PUSHMARK(SP); |
33c27489 | 1277 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1278 | PUTBACK; |
864dbfa3 | 1279 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1280 | POPSTACK; |
a60c0954 | 1281 | LEAVE; |
463ee0b2 LW |
1282 | return 0; |
1283 | } | |
1284 | ||
1285 | int | |
864dbfa3 | 1286 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1287 | { |
463ee0b2 | 1288 | dSP; |
dff6d3cd | 1289 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1290 | |
1291 | ENTER; | |
a0d0e21e | 1292 | SAVETMPS; |
e788e7d3 | 1293 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1294 | PUSHMARK(SP); |
1295 | EXTEND(SP, 2); | |
33c27489 | 1296 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1297 | if (SvOK(key)) |
1298 | PUSHs(key); | |
1299 | PUTBACK; | |
1300 | ||
864dbfa3 | 1301 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1302 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1303 | |
d3acc0f7 | 1304 | POPSTACK; |
a0d0e21e LW |
1305 | FREETMPS; |
1306 | LEAVE; | |
79072805 LW |
1307 | return 0; |
1308 | } | |
1309 | ||
1310 | int | |
864dbfa3 | 1311 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1312 | { |
1313 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1314 | } |
a0d0e21e LW |
1315 | |
1316 | int | |
864dbfa3 | 1317 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1318 | { |
1319 | OP *o; | |
1320 | I32 i; | |
1321 | GV* gv; | |
1322 | SV** svp; | |
2d8e6c8d | 1323 | STRLEN n_a; |
79072805 | 1324 | |
3280af22 | 1325 | gv = PL_DBline; |
79072805 | 1326 | i = SvTRUE(sv); |
188ea221 | 1327 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1328 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1329 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 | 1330 | o->op_private = i; |
79072805 LW |
1331 | return 0; |
1332 | } | |
1333 | ||
1334 | int | |
864dbfa3 | 1335 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1336 | { |
3280af22 | 1337 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1338 | return 0; |
1339 | } | |
1340 | ||
1341 | int | |
864dbfa3 | 1342 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1343 | { |
3280af22 | 1344 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1345 | return 0; |
1346 | } | |
1347 | ||
1348 | int | |
864dbfa3 | 1349 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1350 | { |
1351 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1352 | |
a0d0e21e | 1353 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1354 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1355 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1356 | I32 i = mg->mg_len; |
7e2040f0 | 1357 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1358 | sv_pos_b2u(lsv, &i); |
1359 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1360 | return 0; |
1361 | } | |
1362 | } | |
1363 | (void)SvOK_off(sv); | |
1364 | return 0; | |
1365 | } | |
1366 | ||
1367 | int | |
864dbfa3 | 1368 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1369 | { |
1370 | SV* lsv = LvTARG(sv); | |
1371 | SSize_t pos; | |
1372 | STRLEN len; | |
c00206c8 | 1373 | STRLEN ulen = 0; |
a0d0e21e LW |
1374 | |
1375 | mg = 0; | |
ac27b0f5 | 1376 | |
a0d0e21e | 1377 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1378 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1379 | if (!mg) { |
1380 | if (!SvOK(sv)) | |
1381 | return 0; | |
14befaf4 DM |
1382 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1383 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1384 | } |
1385 | else if (!SvOK(sv)) { | |
565764a8 | 1386 | mg->mg_len = -1; |
a0d0e21e LW |
1387 | return 0; |
1388 | } | |
1389 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1390 | ||
c485e607 | 1391 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1392 | |
7e2040f0 | 1393 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1394 | ulen = sv_len_utf8(lsv); |
1395 | if (ulen) | |
1396 | len = ulen; | |
a0ed51b3 LW |
1397 | } |
1398 | ||
a0d0e21e LW |
1399 | if (pos < 0) { |
1400 | pos += len; | |
1401 | if (pos < 0) | |
1402 | pos = 0; | |
1403 | } | |
1404 | else if (pos > len) | |
1405 | pos = len; | |
a0ed51b3 LW |
1406 | |
1407 | if (ulen) { | |
1408 | I32 p = pos; | |
1409 | sv_pos_u2b(lsv, &p, 0); | |
1410 | pos = p; | |
1411 | } | |
1412 | ||
565764a8 | 1413 | mg->mg_len = pos; |
71be2cbc | 1414 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1415 | |
79072805 LW |
1416 | return 0; |
1417 | } | |
1418 | ||
1419 | int | |
864dbfa3 | 1420 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1421 | { |
8646b087 | 1422 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1423 | SvFAKE_off(sv); | |
946ec16e | 1424 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1425 | SvFAKE_on(sv); |
1426 | } | |
1427 | else | |
946ec16e | 1428 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1429 | return 0; |
1430 | } | |
1431 | ||
1432 | int | |
864dbfa3 | 1433 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1434 | { |
1435 | register char *s; | |
1436 | GV* gv; | |
2d8e6c8d | 1437 | STRLEN n_a; |
79072805 LW |
1438 | |
1439 | if (!SvOK(sv)) | |
1440 | return 0; | |
2d8e6c8d | 1441 | s = SvPV(sv, n_a); |
79072805 LW |
1442 | if (*s == '*' && s[1]) |
1443 | s++; | |
85e6fe83 | 1444 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1445 | if (sv == (SV*)gv) |
1446 | return 0; | |
1447 | if (GvGP(sv)) | |
88e89b8a | 1448 | gp_free((GV*)sv); |
79072805 | 1449 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1450 | return 0; |
1451 | } | |
1452 | ||
1453 | int | |
864dbfa3 | 1454 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1455 | { |
1456 | STRLEN len; | |
1457 | SV *lsv = LvTARG(sv); | |
1458 | char *tmps = SvPV(lsv,len); | |
1459 | I32 offs = LvTARGOFF(sv); | |
1460 | I32 rem = LvTARGLEN(sv); | |
1461 | ||
9aa983d2 JH |
1462 | if (SvUTF8(lsv)) |
1463 | sv_pos_u2b(lsv, &offs, &rem); | |
6ff81951 GS |
1464 | if (offs > len) |
1465 | offs = len; | |
1466 | if (rem + offs > len) | |
1467 | rem = len - offs; | |
1468 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1469 | if (SvUTF8(lsv)) |
2ef4b674 | 1470 | SvUTF8_on(sv); |
6ff81951 GS |
1471 | return 0; |
1472 | } | |
1473 | ||
1474 | int | |
864dbfa3 | 1475 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1476 | { |
9aa983d2 JH |
1477 | STRLEN len; |
1478 | char *tmps = SvPV(sv, len); | |
1479 | SV *lsv = LvTARG(sv); | |
1480 | I32 lvoff = LvTARGOFF(sv); | |
1481 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1482 | |
1aa99e6b | 1483 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1484 | sv_utf8_upgrade(lsv); |
1485 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1486 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1487 | SvUTF8_on(lsv); | |
1488 | } | |
1489 | else if (SvUTF8(lsv)) { | |
1490 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
e95af362 | 1491 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1492 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1493 | Safefree(tmps); | |
1aa99e6b IH |
1494 | } |
1495 | else | |
9aa983d2 | 1496 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1497 | |
79072805 LW |
1498 | return 0; |
1499 | } | |
1500 | ||
1501 | int | |
864dbfa3 | 1502 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1503 | { |
565764a8 | 1504 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1505 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1506 | return 0; |
1507 | } | |
1508 | ||
1509 | int | |
864dbfa3 | 1510 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1511 | { |
3280af22 NIS |
1512 | if (PL_localizing) { |
1513 | if (PL_localizing == 1) | |
565764a8 | 1514 | mg->mg_len <<= 1; |
748a9306 | 1515 | else |
565764a8 | 1516 | mg->mg_len >>= 1; |
a0d0e21e | 1517 | } |
3280af22 | 1518 | else if (PL_tainted) |
565764a8 | 1519 | mg->mg_len |= 1; |
748a9306 | 1520 | else |
565764a8 | 1521 | mg->mg_len &= ~1; |
463ee0b2 LW |
1522 | return 0; |
1523 | } | |
1524 | ||
1525 | int | |
864dbfa3 | 1526 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1527 | { |
1528 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1529 | |
1530 | if (!lsv) { | |
155aba94 | 1531 | (void)SvOK_off(sv); |
6ff81951 GS |
1532 | return 0; |
1533 | } | |
6ff81951 | 1534 | |
81e118e0 | 1535 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1536 | return 0; |
1537 | } | |
1538 | ||
1539 | int | |
864dbfa3 | 1540 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1541 | { |
1542 | do_vecset(sv); /* XXX slurp this routine */ | |
1543 | return 0; | |
1544 | } | |
1545 | ||
1546 | int | |
864dbfa3 | 1547 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1548 | { |
71be2cbc | 1549 | SV *targ = Nullsv; |
5f05dabc | 1550 | if (LvTARGLEN(sv)) { |
68dc0745 | 1551 | if (mg->mg_obj) { |
74e13ce4 GS |
1552 | SV *ahv = LvTARG(sv); |
1553 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1554 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1555 | if (he) | |
1556 | targ = HeVAL(he); | |
1557 | } | |
1558 | else { | |
1559 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1560 | if (svp) | |
1561 | targ = *svp; | |
1562 | } | |
68dc0745 | 1563 | } |
1564 | else { | |
3c78fafa | 1565 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1566 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1567 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1568 | } | |
3280af22 | 1569 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1570 | /* somebody else defined it for us */ |
1571 | SvREFCNT_dec(LvTARG(sv)); | |
1572 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1573 | LvTARGLEN(sv) = 0; | |
1574 | SvREFCNT_dec(mg->mg_obj); | |
1575 | mg->mg_obj = Nullsv; | |
1576 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1577 | } | |
5f05dabc | 1578 | } |
71be2cbc | 1579 | else |
1580 | targ = LvTARG(sv); | |
3280af22 | 1581 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1582 | return 0; |
1583 | } | |
1584 | ||
1585 | int | |
864dbfa3 | 1586 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1587 | { |
1588 | if (LvTARGLEN(sv)) | |
68dc0745 | 1589 | vivify_defelem(sv); |
1590 | if (LvTARG(sv)) { | |
5f05dabc | 1591 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1592 | SvSETMAGIC(LvTARG(sv)); |
1593 | } | |
5f05dabc | 1594 | return 0; |
1595 | } | |
1596 | ||
71be2cbc | 1597 | void |
864dbfa3 | 1598 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1599 | { |
74e13ce4 GS |
1600 | MAGIC *mg; |
1601 | SV *value = Nullsv; | |
71be2cbc | 1602 | |
14befaf4 | 1603 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1604 | return; |
68dc0745 | 1605 | if (mg->mg_obj) { |
74e13ce4 | 1606 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1607 | STRLEN n_a; |
74e13ce4 | 1608 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1609 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1610 | if (he) |
1611 | value = HeVAL(he); | |
1612 | } | |
1613 | else { | |
af7f9c15 | 1614 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1615 | if (svp) |
1616 | value = *svp; | |
1617 | } | |
3280af22 | 1618 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1619 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1620 | } |
68dc0745 | 1621 | else { |
1622 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1623 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1624 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1625 | else { | |
1626 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1627 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1628 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1629 | } |
1630 | } | |
3e3baf6d | 1631 | (void)SvREFCNT_inc(value); |
68dc0745 | 1632 | SvREFCNT_dec(LvTARG(sv)); |
1633 | LvTARG(sv) = value; | |
71be2cbc | 1634 | LvTARGLEN(sv) = 0; |
68dc0745 | 1635 | SvREFCNT_dec(mg->mg_obj); |
1636 | mg->mg_obj = Nullsv; | |
1637 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1638 | } |
1639 | ||
1640 | int | |
864dbfa3 | 1641 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1642 | { |
1643 | AV *av = (AV*)mg->mg_obj; | |
1644 | SV **svp = AvARRAY(av); | |
1645 | I32 i = AvFILLp(av); | |
1646 | while (i >= 0) { | |
1647 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1648 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1649 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1650 | /* XXX Should we check that it hasn't changed? */ |
1651 | SvRV(svp[i]) = 0; | |
155aba94 | 1652 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1653 | SvWEAKREF_off(svp[i]); |
1654 | svp[i] = &PL_sv_undef; | |
1655 | } | |
1656 | i--; | |
1657 | } | |
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | int | |
864dbfa3 | 1662 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1663 | { |
565764a8 | 1664 | mg->mg_len = -1; |
c6496cc7 | 1665 | SvSCREAM_off(sv); |
93a17b20 LW |
1666 | return 0; |
1667 | } | |
1668 | ||
1669 | int | |
864dbfa3 | 1670 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1671 | { |
14befaf4 | 1672 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1673 | SvVALID_off(sv); |
1674 | return 0; | |
1675 | } | |
1676 | ||
1677 | int | |
864dbfa3 | 1678 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1679 | { |
14befaf4 | 1680 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1681 | SvCOMPILED_off(sv); |
1682 | return 0; | |
1683 | } | |
1684 | ||
1685 | int | |
864dbfa3 | 1686 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1687 | { |
1688 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1689 | ||
1690 | if (uf && uf->uf_set) | |
24f81a43 | 1691 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1692 | return 0; |
1693 | } | |
1694 | ||
c277df42 | 1695 | int |
864dbfa3 | 1696 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1697 | { |
1698 | regexp *re = (regexp *)mg->mg_obj; | |
1699 | ReREFCNT_dec(re); | |
1700 | return 0; | |
1701 | } | |
1702 | ||
7a4c00b4 | 1703 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1704 | int |
864dbfa3 | 1705 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1706 | { |
1707 | /* | |
838b5b74 | 1708 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1709 | * and vanished with a faint plop. |
1710 | */ | |
7a4c00b4 | 1711 | if (mg->mg_ptr) { |
1712 | Safefree(mg->mg_ptr); | |
1713 | mg->mg_ptr = NULL; | |
565764a8 | 1714 | mg->mg_len = -1; |
7a4c00b4 | 1715 | } |
bbce6d69 | 1716 | return 0; |
1717 | } | |
7a4c00b4 | 1718 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1719 | |
1720 | int | |
864dbfa3 | 1721 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1722 | { |
1723 | register char *s; | |
1724 | I32 i; | |
8990e307 | 1725 | STRLEN len; |
79072805 | 1726 | switch (*mg->mg_ptr) { |
748a9306 | 1727 | case '\001': /* ^A */ |
3280af22 | 1728 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1729 | break; |
49460fe6 NIS |
1730 | case '\003': /* ^C */ |
1731 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1732 | break; | |
1733 | ||
79072805 | 1734 | case '\004': /* ^D */ |
aea4f609 | 1735 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1736 | DEBUG_x(dump_all()); |
1737 | break; | |
28f23441 | 1738 | case '\005': /* ^E */ |
cd39f2b6 | 1739 | #ifdef MACOS_TRADITIONAL |
bf4acbe4 | 1740 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1741 | #else |
cd39f2b6 JH |
1742 | # ifdef VMS |
1743 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
048c1ddf | 1744 | # else |
cd39f2b6 JH |
1745 | # ifdef WIN32 |
1746 | SetLastError( SvIV(sv) ); | |
1747 | # else | |
9fed8b87 IZ |
1748 | # ifdef OS2 |
1749 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1750 | # else | |
f86702cc | 1751 | /* will anyone ever use this? */ |
1752 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1753 | # endif |
048c1ddf IZ |
1754 | # endif |
1755 | # endif | |
22fae026 | 1756 | #endif |
28f23441 | 1757 | break; |
79072805 | 1758 | case '\006': /* ^F */ |
3280af22 | 1759 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1760 | break; |
a0d0e21e | 1761 | case '\010': /* ^H */ |
3280af22 | 1762 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1763 | break; |
9d116dd7 | 1764 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1765 | if (PL_inplace) |
1766 | Safefree(PL_inplace); | |
79072805 | 1767 | if (SvOK(sv)) |
2d8e6c8d | 1768 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1769 | else |
3280af22 | 1770 | PL_inplace = Nullch; |
79072805 | 1771 | break; |
28f23441 | 1772 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1773 | if (*(mg->mg_ptr+1) == '\0') { |
1774 | if (PL_osname) | |
1775 | Safefree(PL_osname); | |
1776 | if (SvOK(sv)) | |
1777 | PL_osname = savepv(SvPV(sv,len)); | |
1778 | else | |
1779 | PL_osname = Nullch; | |
1780 | } | |
1781 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1782 | if (!PL_compiling.cop_io) | |
1783 | PL_compiling.cop_io = newSVsv(sv); | |
1784 | else | |
1785 | sv_setsv(PL_compiling.cop_io,sv); | |
1786 | } | |
28f23441 | 1787 | break; |
79072805 | 1788 | case '\020': /* ^P */ |
3280af22 | 1789 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1790 | if (PL_perldb && !PL_DBsingle) |
1791 | init_debugger(); | |
79072805 LW |
1792 | break; |
1793 | case '\024': /* ^T */ | |
88e89b8a | 1794 | #ifdef BIG_TIME |
6b88bc9c | 1795 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1796 | #else |
3280af22 | 1797 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1798 | #endif |
79072805 | 1799 | break; |
46487f74 | 1800 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1801 | if (*(mg->mg_ptr+1) == '\0') { |
1802 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1803 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1804 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1805 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1806 | } |
599cee73 | 1807 | } |
6a818117 | 1808 | else if (strEQ(mg->mg_ptr, "\027ARNING_BITS")) { |
4438c4b7 | 1809 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1810 | if (!SvPOK(sv) && PL_localizing) { |
1811 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1812 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1813 | break; |
1814 | } | |
f4fc7782 | 1815 | { |
b5477537 | 1816 | STRLEN len, i; |
d3a7d8c7 | 1817 | int accumulate = 0 ; |
f4fc7782 | 1818 | int any_fatals = 0 ; |
d3a7d8c7 | 1819 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1820 | for (i = 0 ; i < len ; ++i) { |
1821 | accumulate |= ptr[i] ; | |
1822 | any_fatals |= (ptr[i] & 0xAA) ; | |
1823 | } | |
d3a7d8c7 GS |
1824 | if (!accumulate) |
1825 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1826 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1827 | PL_compiling.cop_warnings = pWARN_ALL; | |
1828 | PL_dowarn |= G_WARN_ONCE ; | |
1829 | } | |
d3a7d8c7 GS |
1830 | else { |
1831 | if (specialWARN(PL_compiling.cop_warnings)) | |
1832 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1833 | else | |
1834 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1835 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1836 | PL_dowarn |= G_WARN_ONCE ; | |
1837 | } | |
f4fc7782 | 1838 | |
d3a7d8c7 | 1839 | } |
4438c4b7 | 1840 | } |
971a9dd3 | 1841 | } |
46487f74 GS |
1842 | else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS")) |
1843 | PL_widesyscalls = SvTRUE(sv); | |
79072805 LW |
1844 | break; |
1845 | case '.': | |
3280af22 NIS |
1846 | if (PL_localizing) { |
1847 | if (PL_localizing == 1) | |
7766f137 | 1848 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1849 | } |
3280af22 NIS |
1850 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1851 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1852 | break; |
1853 | case '^': | |
3280af22 | 1854 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1855 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1856 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1857 | break; |
1858 | case '~': | |
3280af22 | 1859 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1860 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1861 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1862 | break; |
1863 | case '=': | |
3280af22 | 1864 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1865 | break; |
1866 | case '-': | |
3280af22 NIS |
1867 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1868 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1869 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1870 | break; |
1871 | case '%': | |
3280af22 | 1872 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1873 | break; |
1874 | case '|': | |
4b65379b | 1875 | { |
3280af22 | 1876 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1877 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1878 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1879 | else { | |
1880 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1881 | PerlIO *ofp = IoOFP(io); | |
1882 | if (ofp) | |
1883 | (void)PerlIO_flush(ofp); | |
1884 | IoFLAGS(io) |= IOf_FLUSH; | |
1885 | } | |
1886 | } | |
79072805 LW |
1887 | } |
1888 | break; | |
1889 | case '*': | |
463ee0b2 | 1890 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1891 | PL_multiline = (i != 0); |
79072805 LW |
1892 | break; |
1893 | case '/': | |
3280af22 NIS |
1894 | SvREFCNT_dec(PL_nrs); |
1895 | PL_nrs = newSVsv(sv); | |
1896 | SvREFCNT_dec(PL_rs); | |
1897 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1898 | break; |
1899 | case '\\': | |
7889fe52 NIS |
1900 | if (PL_ors_sv) |
1901 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 1902 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 1903 | PL_ors_sv = newSVsv(sv); |
009c130f | 1904 | } |
e3c19b7b | 1905 | else { |
7889fe52 | 1906 | PL_ors_sv = Nullsv; |
e3c19b7b | 1907 | } |
79072805 LW |
1908 | break; |
1909 | case ',': | |
7889fe52 NIS |
1910 | if (PL_ofs_sv) |
1911 | SvREFCNT_dec(PL_ofs_sv); | |
1912 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1913 | PL_ofs_sv = newSVsv(sv); | |
1914 | } | |
1915 | else { | |
1916 | PL_ofs_sv = Nullsv; | |
1917 | } | |
79072805 LW |
1918 | break; |
1919 | case '#': | |
3280af22 NIS |
1920 | if (PL_ofmt) |
1921 | Safefree(PL_ofmt); | |
2d8e6c8d | 1922 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1923 | break; |
1924 | case '[': | |
3280af22 | 1925 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1926 | break; |
1927 | case '?': | |
ff0cee69 | 1928 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1929 | if (PL_localizing == 2) { |
1930 | PL_statusvalue = LvTARGOFF(sv); | |
1931 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1932 | } |
1933 | else | |
1934 | #endif | |
1935 | #ifdef VMSISH_STATUS | |
1936 | if (VMSISH_STATUS) | |
1937 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1938 | else | |
1939 | #endif | |
1940 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1941 | break; |
1942 | case '!': | |
78987ded | 1943 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1944 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1945 | break; |
1946 | case '<': | |
3280af22 NIS |
1947 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1948 | if (PL_delaymagic) { | |
1949 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1950 | break; /* don't do magic till later */ |
1951 | } | |
1952 | #ifdef HAS_SETRUID | |
b28d0864 | 1953 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1954 | #else |
1955 | #ifdef HAS_SETREUID | |
3280af22 | 1956 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1957 | #else |
85e6fe83 | 1958 | #ifdef HAS_SETRESUID |
b28d0864 | 1959 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1960 | #else |
b28d0864 NIS |
1961 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1962 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1963 | else { |
d8eceb89 | 1964 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1965 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1966 | } |
79072805 LW |
1967 | #endif |
1968 | #endif | |
85e6fe83 | 1969 | #endif |
d8eceb89 | 1970 | PL_uid = PerlProc_getuid(); |
3280af22 | 1971 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1972 | break; |
1973 | case '>': | |
3280af22 NIS |
1974 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1975 | if (PL_delaymagic) { | |
1976 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1977 | break; /* don't do magic till later */ |
1978 | } | |
1979 | #ifdef HAS_SETEUID | |
3280af22 | 1980 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1981 | #else |
1982 | #ifdef HAS_SETREUID | |
b28d0864 | 1983 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1984 | #else |
1985 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1986 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1987 | #else |
b28d0864 NIS |
1988 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1989 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1990 | else { |
e8ee3774 | 1991 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 1992 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1993 | } |
79072805 LW |
1994 | #endif |
1995 | #endif | |
85e6fe83 | 1996 | #endif |
d8eceb89 | 1997 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1998 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1999 | break; |
2000 | case '(': | |
3280af22 NIS |
2001 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2002 | if (PL_delaymagic) { | |
2003 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2004 | break; /* don't do magic till later */ |
2005 | } | |
2006 | #ifdef HAS_SETRGID | |
b28d0864 | 2007 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2008 | #else |
2009 | #ifdef HAS_SETREGID | |
3280af22 | 2010 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2011 | #else |
2012 | #ifdef HAS_SETRESGID | |
b28d0864 | 2013 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2014 | #else |
b28d0864 NIS |
2015 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2016 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2017 | else { |
d8eceb89 | 2018 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2019 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2020 | } |
79072805 LW |
2021 | #endif |
2022 | #endif | |
85e6fe83 | 2023 | #endif |
d8eceb89 | 2024 | PL_gid = PerlProc_getgid(); |
3280af22 | 2025 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2026 | break; |
2027 | case ')': | |
5cd24f17 | 2028 | #ifdef HAS_SETGROUPS |
2029 | { | |
2d8e6c8d | 2030 | char *p = SvPV(sv, len); |
5cd24f17 | 2031 | Groups_t gary[NGROUPS]; |
2032 | ||
5cd24f17 | 2033 | while (isSPACE(*p)) |
2034 | ++p; | |
2d4389e4 | 2035 | PL_egid = Atol(p); |
5cd24f17 | 2036 | for (i = 0; i < NGROUPS; ++i) { |
2037 | while (*p && !isSPACE(*p)) | |
2038 | ++p; | |
2039 | while (isSPACE(*p)) | |
2040 | ++p; | |
2041 | if (!*p) | |
2042 | break; | |
2d4389e4 | 2043 | gary[i] = Atol(p); |
5cd24f17 | 2044 | } |
8cc95fdb | 2045 | if (i) |
2046 | (void)setgroups(i, gary); | |
5cd24f17 | 2047 | } |
2048 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2049 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2050 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2051 | if (PL_delaymagic) { |
2052 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2053 | break; /* don't do magic till later */ |
2054 | } | |
2055 | #ifdef HAS_SETEGID | |
3280af22 | 2056 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2057 | #else |
2058 | #ifdef HAS_SETREGID | |
b28d0864 | 2059 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2060 | #else |
2061 | #ifdef HAS_SETRESGID | |
b28d0864 | 2062 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2063 | #else |
b28d0864 NIS |
2064 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2065 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2066 | else { |
d8eceb89 | 2067 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2068 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2069 | } |
79072805 LW |
2070 | #endif |
2071 | #endif | |
85e6fe83 | 2072 | #endif |
d8eceb89 | 2073 | PL_egid = PerlProc_getegid(); |
3280af22 | 2074 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2075 | break; |
2076 | case ':': | |
2d8e6c8d | 2077 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2078 | break; |
cd39f2b6 | 2079 | #ifndef MACOS_TRADITIONAL |
79072805 | 2080 | case '0': |
4bc88a62 PS |
2081 | #ifdef HAS_SETPROCTITLE |
2082 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2083 | * show a string from the process struct and provide | |
2084 | * the setproctitle() routine to manipulate that. */ | |
2085 | { | |
2086 | s = SvPV(sv, len); | |
9aad2c0e JH |
2087 | # if __FreeBSD_version >= 410001 |
2088 | /* The leading "-" removes the "perl: " prefix, | |
4bc88a62 PS |
2089 | * but not the "(perl) suffix from the ps(1) |
2090 | * output, because that's what ps(1) shows if the | |
2091 | * argv[] is modified. */ | |
2092 | setproctitle("-%s", s, len + 1); | |
9aad2c0e | 2093 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2094 | /* This doesn't really work if you assume that |
2095 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2096 | * because in ps(1) output the result will be like | |
2097 | * sprintf("perl: %s (perl)", s) | |
2098 | * I guess this is a security feature: | |
2099 | * one (a user process) cannot get rid of the original name. | |
2100 | * --jhi */ | |
2101 | setproctitle("%s", s); | |
2102 | # endif | |
2103 | } | |
2104 | #endif | |
3280af22 NIS |
2105 | if (!PL_origalen) { |
2106 | s = PL_origargv[0]; | |
79072805 LW |
2107 | s += strlen(s); |
2108 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2109 | for (i = 1; i < PL_origargc; i++) { |
2110 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2111 | #ifdef OS2 |
6b88bc9c | 2112 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2113 | #endif |
fb73857a | 2114 | ) |
379c4362 GS |
2115 | { |
2116 | ++s; | |
2117 | s += strlen(s); /* this one is ok too */ | |
2118 | } | |
fb73857a | 2119 | else |
2120 | break; | |
79072805 | 2121 | } |
bbce6d69 | 2122 | /* can grab env area too? */ |
3280af22 | 2123 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2124 | #ifdef OS2 |
6b88bc9c | 2125 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
ac27b0f5 | 2126 | #endif |
fb73857a | 2127 | )) { |
66b1d557 | 2128 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2129 | /* force copy of environment */ |
3280af22 | 2130 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2131 | if (PL_origenviron[i] == s + 1) { |
2132 | ++s; | |
2133 | s += strlen(s); | |
2134 | } | |
fb73857a | 2135 | else |
2136 | break; | |
79072805 | 2137 | } |
3280af22 | 2138 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2139 | } |
a0d0e21e | 2140 | s = SvPV_force(sv,len); |
8990e307 | 2141 | i = len; |
3280af22 NIS |
2142 | if (i >= PL_origalen) { |
2143 | i = PL_origalen; | |
fb73857a | 2144 | /* don't allow system to limit $0 seen by script */ |
2145 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2146 | Copy(s, PL_origargv[0], i, char); |
2147 | s = PL_origargv[0]+i; | |
fb73857a | 2148 | *s = '\0'; |
79072805 LW |
2149 | } |
2150 | else { | |
3280af22 NIS |
2151 | Copy(s, PL_origargv[0], i, char); |
2152 | s = PL_origargv[0]+i; | |
79072805 | 2153 | *s++ = '\0'; |
3280af22 | 2154 | while (++i < PL_origalen) |
8990e307 | 2155 | *s++ = ' '; |
3280af22 NIS |
2156 | s = PL_origargv[0]+i; |
2157 | for (i = 1; i < PL_origargc; i++) | |
2158 | PL_origargv[i] = Nullch; | |
79072805 LW |
2159 | } |
2160 | break; | |
cd39f2b6 | 2161 | #endif |
a863c7d1 MB |
2162 | #ifdef USE_THREADS |
2163 | case '@': | |
38a03e6e | 2164 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2165 | break; |
2166 | #endif /* USE_THREADS */ | |
79072805 LW |
2167 | } |
2168 | return 0; | |
2169 | } | |
2170 | ||
f93b4edd MB |
2171 | #ifdef USE_THREADS |
2172 | int | |
864dbfa3 | 2173 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd | 2174 | { |
b900a521 JH |
2175 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
2176 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", | |
a674cc95 | 2177 | PTR2UV(thr), PTR2UV(sv))); |
f93b4edd | 2178 | if (MgOWNER(mg)) |
cea2e8a9 | 2179 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2180 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2181 | COND_DESTROY(MgCONDP(mg)); | |
2182 | return 0; | |
2183 | } | |
2184 | #endif /* USE_THREADS */ | |
2185 | ||
79072805 | 2186 | I32 |
864dbfa3 | 2187 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2188 | { |
2189 | register char **sigv; | |
2190 | ||
22c35a8c | 2191 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2192 | if (strEQ(sig,*sigv)) |
22c35a8c | 2193 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2194 | #ifdef SIGCLD |
2195 | if (strEQ(sig,"CHLD")) | |
2196 | return SIGCLD; | |
2197 | #endif | |
2198 | #ifdef SIGCHLD | |
2199 | if (strEQ(sig,"CLD")) | |
2200 | return SIGCHLD; | |
2201 | #endif | |
2202 | return 0; | |
2203 | } | |
2204 | ||
84902520 TB |
2205 | static SV* sig_sv; |
2206 | ||
ecfc5424 | 2207 | Signal_t |
cea2e8a9 | 2208 | Perl_sighandler(int sig) |
79072805 | 2209 | { |
71d280e3 GS |
2210 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) |
2211 | dTHXoa(PL_curinterp); /* fake TLS, because signals don't do TLS */ | |
2212 | #else | |
cea2e8a9 | 2213 | dTHX; |
71d280e3 | 2214 | #endif |
79072805 | 2215 | dSP; |
00d579c5 | 2216 | GV *gv = Nullgv; |
a0d0e21e | 2217 | HV *st; |
b7953727 | 2218 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2219 | CV *cv = Nullcv; |
533c011a | 2220 | OP *myop = PL_op; |
84902520 | 2221 | U32 flags = 0; |
3280af22 | 2222 | XPV *tXpv = PL_Xpv; |
71d280e3 GS |
2223 | |
2224 | #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT) | |
2225 | PERL_SET_THX(aTHXo); /* fake TLS, see above */ | |
2226 | #endif | |
ac27b0f5 | 2227 | |
3280af22 | 2228 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2229 | flags |= 1; |
3280af22 | 2230 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2231 | flags |= 4; |
3280af22 | 2232 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2233 | flags |= 8; |
3280af22 | 2234 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2235 | flags |= 16; |
2236 | ||
22c35a8c | 2237 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2238 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2239 | PL_sig_name[sig]); |
ff0cee69 | 2240 | |
84902520 TB |
2241 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2242 | infinity, so we fix 4 (in fact 5): */ | |
2243 | if (flags & 1) { | |
3280af22 | 2244 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2245 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2246 | } |
ac27b0f5 | 2247 | if (flags & 4) |
3280af22 | 2248 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2249 | if (flags & 8) { |
3280af22 NIS |
2250 | PL_retstack_ix++; |
2251 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2252 | } |
2253 | if (flags & 16) | |
3280af22 | 2254 | PL_scopestack_ix += 1; |
84902520 | 2255 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2256 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2257 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2258 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2259 | |
a0d0e21e | 2260 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2261 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2262 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2263 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2264 | : ((cv && CvGV(cv)) |
2265 | ? GvENAME(CvGV(cv)) | |
2266 | : "__ANON__"))); | |
2267 | goto cleanup; | |
79072805 LW |
2268 | } |
2269 | ||
22c35a8c GS |
2270 | if(PL_psig_name[sig]) { |
2271 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2272 | flags |= 64; |
2273 | sig_sv = sv; | |
2274 | } else { | |
ff0cee69 | 2275 | sv = sv_newmortal(); |
22c35a8c | 2276 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2277 | } |
e336de0d | 2278 | |
e788e7d3 | 2279 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2280 | PUSHMARK(SP); |
79072805 | 2281 | PUSHs(sv); |
79072805 | 2282 | PUTBACK; |
a0d0e21e | 2283 | |
1b266415 | 2284 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2285 | |
d3acc0f7 | 2286 | POPSTACK; |
1b266415 | 2287 | if (SvTRUE(ERRSV)) { |
1d615522 | 2288 | #ifndef PERL_MICRO |
983dbef6 | 2289 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2290 | /* Handler "died", for example to get out of a restart-able read(). |
2291 | * Before we re-do that on its behalf re-enable the signal which was | |
2292 | * blocked by the system when we entered. | |
2293 | */ | |
2294 | sigset_t set; | |
2295 | sigemptyset(&set); | |
2296 | sigaddset(&set,sig); | |
2297 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2298 | #else | |
2299 | /* Not clear if this will work */ | |
2300 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2301 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2302 | #endif |
1d615522 | 2303 | #endif /* !PERL_MICRO */ |
1b266415 NIS |
2304 | Perl_die(aTHX_ Nullch); |
2305 | } | |
00d579c5 | 2306 | cleanup: |
84902520 | 2307 | if (flags & 1) |
3280af22 | 2308 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2309 | if (flags & 4) |
3280af22 | 2310 | PL_markstack_ptr--; |
ac27b0f5 | 2311 | if (flags & 8) |
3280af22 | 2312 | PL_retstack_ix--; |
84902520 | 2313 | if (flags & 16) |
3280af22 | 2314 | PL_scopestack_ix -= 1; |
84902520 TB |
2315 | if (flags & 64) |
2316 | SvREFCNT_dec(sv); | |
533c011a | 2317 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2318 | |
3280af22 NIS |
2319 | PL_Sv = tSv; /* Restore global temporaries. */ |
2320 | PL_Xpv = tXpv; | |
79072805 LW |
2321 | return; |
2322 | } | |
4e35701f NIS |
2323 | |
2324 | ||
51371543 | 2325 | #ifdef PERL_OBJECT |
51371543 GS |
2326 | #include "XSUB.h" |
2327 | #endif | |
2328 | ||
2329 | static void | |
2330 | restore_magic(pTHXo_ void *p) | |
2331 | { | |
48944bdf | 2332 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2333 | SV* sv = mgs->mgs_sv; |
2334 | ||
2335 | if (!sv) | |
2336 | return; | |
2337 | ||
2338 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2339 | { | |
2340 | if (mgs->mgs_flags) | |
2341 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2342 | else | |
2343 | mg_magical(sv); | |
2344 | if (SvGMAGICAL(sv)) | |
2345 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2346 | } | |
2347 | ||
2348 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2349 | ||
2350 | /* If we're still on top of the stack, pop us off. (That condition | |
2351 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2352 | * if it's being called via leave_scope.) | |
2353 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2354 | * may leave alloc gunk on the savestack, and some code | |
2355 | * (e.g. sighandler) doesn't expect that... | |
2356 | */ | |
2357 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2358 | { | |
2359 | I32 popval = SSPOPINT; | |
c76ac1ee | 2360 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2361 | PL_savestack_ix -= 2; |
2362 | popval = SSPOPINT; | |
2363 | assert(popval == SAVEt_ALLOC); | |
2364 | popval = SSPOPINT; | |
2365 | PL_savestack_ix -= popval; | |
2366 | } | |
2367 | ||
2368 | } | |
2369 | ||
2370 | static void | |
2371 | unwind_handler_stack(pTHXo_ void *p) | |
2372 | { | |
51371543 GS |
2373 | U32 flags = *(U32*)p; |
2374 | ||
2375 | if (flags & 1) | |
2376 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2377 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2378 | if (flags & 64) | |
2379 | SvREFCNT_dec(sig_sv); | |
2380 | } |