Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4c79ee7a | 3 | * Copyright (c) 1991-2003, 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 | ||
ccfc67b7 JH |
15 | /* |
16 | =head1 Magical Functions | |
17 | */ | |
18 | ||
79072805 | 19 | #include "EXTERN.h" |
864dbfa3 | 20 | #define PERL_IN_MG_C |
79072805 LW |
21 | #include "perl.h" |
22 | ||
5cd24f17 | 23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 | |
26 | # endif | |
b7953727 JH |
27 | # ifdef I_GRP |
28 | # include <grp.h> | |
29 | # endif | |
188ea221 CS |
30 | #endif |
31 | ||
17aa7f3d JH |
32 | #ifdef __hpux |
33 | # include <sys/pstat.h> | |
34 | #endif | |
35 | ||
23ada85b | 36 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 37 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 38 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 39 | #endif |
2e34cc90 | 40 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 | 41 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 CL |
42 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
43 | #endif | |
85b332e2 | 44 | |
acfe0abc GS |
45 | static void restore_magic(pTHX_ void *p); |
46 | static void unwind_handler_stack(pTHX_ void *p); | |
51371543 | 47 | |
c07a80fd | 48 | /* |
49 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
50 | */ | |
51 | ||
52 | struct magic_state { | |
53 | SV* mgs_sv; | |
54 | U32 mgs_flags; | |
455ece5e | 55 | I32 mgs_ss_ix; |
c07a80fd | 56 | }; |
455ece5e | 57 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
58 | |
59 | STATIC void | |
8fb26106 | 60 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 61 | { |
455ece5e | 62 | MGS* mgs; |
c07a80fd | 63 | assert(SvMAGICAL(sv)); |
765f542d NC |
64 | #ifdef PERL_COPY_ON_WRITE |
65 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ | |
66 | if (SvIsCOW(sv)) | |
67 | sv_force_normal(sv); | |
68 | #endif | |
c07a80fd | 69 | |
685f876f | 70 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
71 | |
72 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 73 | mgs->mgs_sv = sv; |
74 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 75 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 76 | |
77 | SvMAGICAL_off(sv); | |
78 | SvREADONLY_off(sv); | |
06759ea0 | 79 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 80 | } |
81 | ||
954c1994 GS |
82 | /* |
83 | =for apidoc mg_magical | |
84 | ||
85 | Turns on the magical status of an SV. See C<sv_magic>. | |
86 | ||
87 | =cut | |
88 | */ | |
89 | ||
8990e307 | 90 | void |
864dbfa3 | 91 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
92 | { |
93 | MAGIC* mg; | |
94 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
95 | MGVTBL* vtbl = mg->mg_virtual; | |
96 | if (vtbl) { | |
2b260de0 | 97 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
98 | SvGMAGICAL_on(sv); |
99 | if (vtbl->svt_set) | |
100 | SvSMAGICAL_on(sv); | |
2b260de0 | 101 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
102 | SvRMAGICAL_on(sv); |
103 | } | |
104 | } | |
105 | } | |
106 | ||
954c1994 GS |
107 | /* |
108 | =for apidoc mg_get | |
109 | ||
110 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
111 | ||
112 | =cut | |
113 | */ | |
114 | ||
79072805 | 115 | int |
864dbfa3 | 116 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 117 | { |
ff76feab AMS |
118 | int new = 0; |
119 | MAGIC *newmg, *head, *cur, *mg; | |
120 | I32 mgs_ix = SSNEW(sizeof(MGS)); | |
463ee0b2 | 121 | |
455ece5e | 122 | save_magic(mgs_ix, sv); |
463ee0b2 | 123 | |
ff76feab AMS |
124 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
125 | list of magic. svt_get() may delete the current entry, add new | |
126 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
127 | ||
128 | newmg = cur = head = mg = SvMAGIC(sv); | |
129 | while (mg) { | |
130 | MGVTBL *vtbl = mg->mg_virtual; | |
131 | ||
2b260de0 | 132 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 133 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
ff76feab AMS |
134 | /* Don't restore the flags for this entry if it was deleted. */ |
135 | if (mg->mg_flags & MGf_GSKIP) | |
136 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 137 | } |
ff76feab AMS |
138 | |
139 | mg = mg->mg_moremagic; | |
140 | ||
141 | if (new) { | |
142 | /* Have we finished with the new entries we saw? Start again | |
143 | where we left off (unless there are more new entries). */ | |
144 | if (mg == head) { | |
145 | new = 0; | |
146 | mg = cur; | |
147 | head = newmg; | |
148 | } | |
149 | } | |
150 | ||
151 | /* Were any new entries added? */ | |
152 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
153 | new = 1; | |
154 | cur = mg; | |
155 | mg = newmg; | |
760ac839 | 156 | } |
79072805 | 157 | } |
463ee0b2 | 158 | |
acfe0abc | 159 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
160 | return 0; |
161 | } | |
162 | ||
954c1994 GS |
163 | /* |
164 | =for apidoc mg_set | |
165 | ||
166 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
167 | ||
168 | =cut | |
169 | */ | |
170 | ||
79072805 | 171 | int |
864dbfa3 | 172 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 173 | { |
8fb26106 | 174 | I32 mgs_ix; |
79072805 | 175 | MAGIC* mg; |
463ee0b2 LW |
176 | MAGIC* nextmg; |
177 | ||
455ece5e AD |
178 | mgs_ix = SSNEW(sizeof(MGS)); |
179 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
180 | |
181 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 182 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 183 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
184 | if (mg->mg_flags & MGf_GSKIP) { |
185 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 186 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 187 | } |
2b260de0 | 188 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 189 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 190 | } |
463ee0b2 | 191 | |
acfe0abc | 192 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
193 | return 0; |
194 | } | |
195 | ||
954c1994 GS |
196 | /* |
197 | =for apidoc mg_length | |
198 | ||
199 | Report on the SV's length. See C<sv_magic>. | |
200 | ||
201 | =cut | |
202 | */ | |
203 | ||
79072805 | 204 | U32 |
864dbfa3 | 205 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
206 | { |
207 | MAGIC* mg; | |
463ee0b2 | 208 | STRLEN len; |
463ee0b2 | 209 | |
79072805 LW |
210 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
211 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 212 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 213 | I32 mgs_ix; |
48e43a1c | 214 | |
455ece5e AD |
215 | mgs_ix = SSNEW(sizeof(MGS)); |
216 | save_magic(mgs_ix, sv); | |
a0d0e21e | 217 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 218 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 219 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
220 | return len; |
221 | } | |
222 | } | |
223 | ||
7719e241 | 224 | if (DO_UTF8(sv)) |
5636d518 DB |
225 | { |
226 | U8 *s = (U8*)SvPV(sv, len); | |
227 | len = Perl_utf8_length(aTHX_ s, s + len); | |
228 | } | |
229 | else | |
230 | (void)SvPV(sv, len); | |
463ee0b2 | 231 | return len; |
79072805 LW |
232 | } |
233 | ||
8fb26106 | 234 | I32 |
864dbfa3 | 235 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
236 | { |
237 | MAGIC* mg; | |
238 | I32 len; | |
ac27b0f5 | 239 | |
93965878 NIS |
240 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
241 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 242 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 243 | I32 mgs_ix; |
455ece5e AD |
244 | |
245 | mgs_ix = SSNEW(sizeof(MGS)); | |
246 | save_magic(mgs_ix, sv); | |
93965878 | 247 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 248 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 249 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
250 | return len; |
251 | } | |
252 | } | |
253 | ||
254 | switch(SvTYPE(sv)) { | |
255 | case SVt_PVAV: | |
256 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
257 | return len; | |
258 | case SVt_PVHV: | |
259 | /* FIXME */ | |
260 | default: | |
cea2e8a9 | 261 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
262 | break; |
263 | } | |
264 | return 0; | |
265 | } | |
266 | ||
954c1994 GS |
267 | /* |
268 | =for apidoc mg_clear | |
269 | ||
270 | Clear something magical that the SV represents. See C<sv_magic>. | |
271 | ||
272 | =cut | |
273 | */ | |
274 | ||
79072805 | 275 | int |
864dbfa3 | 276 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 277 | { |
8fb26106 | 278 | I32 mgs_ix; |
79072805 | 279 | MAGIC* mg; |
463ee0b2 | 280 | |
455ece5e AD |
281 | mgs_ix = SSNEW(sizeof(MGS)); |
282 | save_magic(mgs_ix, sv); | |
463ee0b2 | 283 | |
79072805 LW |
284 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
285 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e | 286 | /* omit GSKIP -- never set here */ |
727405f8 | 287 | |
2b260de0 | 288 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 289 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 290 | } |
463ee0b2 | 291 | |
acfe0abc | 292 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
293 | return 0; |
294 | } | |
295 | ||
954c1994 GS |
296 | /* |
297 | =for apidoc mg_find | |
298 | ||
299 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
300 | ||
301 | =cut | |
302 | */ | |
303 | ||
93a17b20 | 304 | MAGIC* |
864dbfa3 | 305 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
306 | { |
307 | MAGIC* mg; | |
3f8f4626 DC |
308 | if (!sv) |
309 | return 0; | |
93a17b20 LW |
310 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
311 | if (mg->mg_type == type) | |
312 | return mg; | |
313 | } | |
314 | return 0; | |
315 | } | |
316 | ||
954c1994 GS |
317 | /* |
318 | =for apidoc mg_copy | |
319 | ||
320 | Copies the magic from one SV to another. See C<sv_magic>. | |
321 | ||
322 | =cut | |
323 | */ | |
324 | ||
79072805 | 325 | int |
864dbfa3 | 326 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 327 | { |
463ee0b2 | 328 | int count = 0; |
79072805 | 329 | MAGIC* mg; |
463ee0b2 | 330 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 NIS |
331 | MGVTBL* vtbl = mg->mg_virtual; |
332 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ | |
333 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
334 | } | |
335 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 336 | sv_magic(nsv, |
14befaf4 DM |
337 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
338 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
339 | ? sv : mg->mg_obj, | |
33c27489 | 340 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 341 | count++; |
79072805 | 342 | } |
79072805 | 343 | } |
463ee0b2 | 344 | return count; |
79072805 LW |
345 | } |
346 | ||
954c1994 GS |
347 | /* |
348 | =for apidoc mg_free | |
349 | ||
350 | Free any magic storage used by the SV. See C<sv_magic>. | |
351 | ||
352 | =cut | |
353 | */ | |
354 | ||
79072805 | 355 | int |
864dbfa3 | 356 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
357 | { |
358 | MAGIC* mg; | |
359 | MAGIC* moremagic; | |
360 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
361 | MGVTBL* vtbl = mg->mg_virtual; | |
362 | moremagic = mg->mg_moremagic; | |
2b260de0 | 363 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 364 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 365 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 | 366 | if (mg->mg_len > 0) |
88e89b8a | 367 | Safefree(mg->mg_ptr); |
565764a8 | 368 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 369 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 370 | } |
b881518d JH |
371 | if (mg->mg_flags & MGf_REFCOUNTED) |
372 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
373 | Safefree(mg); |
374 | } | |
375 | SvMAGIC(sv) = 0; | |
376 | return 0; | |
377 | } | |
378 | ||
d460ef45 | 379 | |
79072805 LW |
380 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
381 | #include <signal.h> | |
382 | #endif | |
383 | ||
942e002e | 384 | U32 |
864dbfa3 | 385 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 386 | { |
6cef1e77 | 387 | register REGEXP *rx; |
6cef1e77 | 388 | |
aaa362c4 | 389 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
390 | if (mg->mg_obj) /* @+ */ |
391 | return rx->nparens; | |
392 | else /* @- */ | |
393 | return rx->lastparen; | |
394 | } | |
ac27b0f5 | 395 | |
942e002e | 396 | return (U32)-1; |
6cef1e77 IZ |
397 | } |
398 | ||
399 | int | |
864dbfa3 | 400 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 401 | { |
6cef1e77 | 402 | register I32 paren; |
cf93c79d | 403 | register I32 s; |
6cef1e77 IZ |
404 | register I32 i; |
405 | register REGEXP *rx; | |
cf93c79d | 406 | I32 t; |
6cef1e77 | 407 | |
aaa362c4 | 408 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
409 | paren = mg->mg_len; |
410 | if (paren < 0) | |
411 | return 0; | |
eb160463 | 412 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
413 | (s = rx->startp[paren]) != -1 && |
414 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
415 | { |
416 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 417 | i = t; |
6cef1e77 | 418 | else /* @- */ |
cf93c79d | 419 | i = s; |
727405f8 | 420 | |
a30b2f1f | 421 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b | 422 | char *b = rx->subbeg; |
0064a8a9 JH |
423 | if (b) |
424 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 425 | } |
0064a8a9 JH |
426 | |
427 | sv_setiv(sv, i); | |
6cef1e77 IZ |
428 | } |
429 | } | |
430 | return 0; | |
431 | } | |
432 | ||
e4b89193 | 433 | int |
a29d06ed MG |
434 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
435 | { | |
a29d06ed | 436 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
437 | /* NOT REACHED */ |
438 | return 0; | |
a29d06ed MG |
439 | } |
440 | ||
93a17b20 | 441 | U32 |
864dbfa3 | 442 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
443 | { |
444 | register I32 paren; | |
93a17b20 | 445 | register I32 i; |
d9f97599 | 446 | register REGEXP *rx; |
a197cbdd | 447 | I32 s1, t1; |
93a17b20 LW |
448 | |
449 | switch (*mg->mg_ptr) { | |
450 | case '1': case '2': case '3': case '4': | |
451 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 452 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 453 | |
ffc61ed2 | 454 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 455 | getparen: |
eb160463 | 456 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
457 | (s1 = rx->startp[paren]) != -1 && |
458 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 459 | { |
cf93c79d | 460 | i = t1 - s1; |
a197cbdd | 461 | getlen: |
a30b2f1f | 462 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
ffc61ed2 | 463 | char *s = rx->subbeg + s1; |
a197cbdd | 464 | char *send = rx->subbeg + t1; |
ffc61ed2 | 465 | |
6d5fa195 | 466 | i = t1 - s1; |
60425c38 JH |
467 | if (is_utf8_string((U8*)s, i)) |
468 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 469 | } |
ffc61ed2 | 470 | if (i < 0) |
0844c848 | 471 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 472 | return i; |
93a17b20 | 473 | } |
235bddc8 NIS |
474 | else { |
475 | if (ckWARN(WARN_UNINITIALIZED)) | |
476 | report_uninit(); | |
477 | } | |
478 | } | |
479 | else { | |
480 | if (ckWARN(WARN_UNINITIALIZED)) | |
481 | report_uninit(); | |
93a17b20 | 482 | } |
748a9306 | 483 | return 0; |
93a17b20 | 484 | case '+': |
aaa362c4 | 485 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 486 | paren = rx->lastparen; |
13f57bf8 CS |
487 | if (paren) |
488 | goto getparen; | |
93a17b20 | 489 | } |
748a9306 | 490 | return 0; |
a01268b5 JH |
491 | case '\016': /* ^N */ |
492 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
493 | paren = rx->lastcloseparen; | |
494 | if (paren) | |
495 | goto getparen; | |
496 | } | |
497 | return 0; | |
93a17b20 | 498 | case '`': |
aaa362c4 | 499 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
500 | if (rx->startp[0] != -1) { |
501 | i = rx->startp[0]; | |
a197cbdd GS |
502 | if (i > 0) { |
503 | s1 = 0; | |
504 | t1 = i; | |
505 | goto getlen; | |
506 | } | |
93a17b20 | 507 | } |
93a17b20 | 508 | } |
748a9306 | 509 | return 0; |
93a17b20 | 510 | case '\'': |
aaa362c4 | 511 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
512 | if (rx->endp[0] != -1) { |
513 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
514 | if (i > 0) { |
515 | s1 = rx->endp[0]; | |
516 | t1 = rx->sublen; | |
517 | goto getlen; | |
518 | } | |
93a17b20 | 519 | } |
93a17b20 | 520 | } |
748a9306 | 521 | return 0; |
93a17b20 LW |
522 | } |
523 | magic_get(sv,mg); | |
2d8e6c8d GS |
524 | if (!SvPOK(sv) && SvNIOK(sv)) { |
525 | STRLEN n_a; | |
526 | sv_2pv(sv, &n_a); | |
527 | } | |
93a17b20 LW |
528 | if (SvPOK(sv)) |
529 | return SvCUR(sv); | |
530 | return 0; | |
531 | } | |
532 | ||
79072805 | 533 | int |
864dbfa3 | 534 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
535 | { |
536 | register I32 paren; | |
537 | register char *s; | |
538 | register I32 i; | |
d9f97599 | 539 | register REGEXP *rx; |
79072805 LW |
540 | |
541 | switch (*mg->mg_ptr) { | |
748a9306 | 542 | case '\001': /* ^A */ |
3280af22 | 543 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 544 | break; |
49460fe6 NIS |
545 | case '\003': /* ^C */ |
546 | sv_setiv(sv, (IV)PL_minus_c); | |
547 | break; | |
548 | ||
79072805 | 549 | case '\004': /* ^D */ |
aea4f609 | 550 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 551 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 552 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 553 | #endif |
79072805 | 554 | break; |
28f23441 | 555 | case '\005': /* ^E */ |
0a378802 | 556 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 557 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
558 | { |
559 | char msg[256]; | |
727405f8 | 560 | |
0a378802 | 561 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 562 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 563 | } |
727405f8 | 564 | #else |
28f23441 | 565 | #ifdef VMS |
0a378802 JH |
566 | { |
567 | # include <descrip.h> | |
568 | # include <starlet.h> | |
569 | char msg[255]; | |
570 | $DESCRIPTOR(msgdsc,msg); | |
571 | sv_setnv(sv,(NV) vaxc$errno); | |
572 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
573 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
574 | else | |
575 | sv_setpv(sv,""); | |
576 | } | |
28f23441 | 577 | #else |
88e89b8a | 578 | #ifdef OS2 |
0a378802 JH |
579 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
580 | sv_setnv(sv, (NV)errno); | |
581 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
582 | } else { | |
583 | if (errno != errno_isOS2) { | |
584 | int tmp = _syserrno(); | |
585 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
586 | Perl_rc = tmp; | |
587 | } | |
588 | sv_setnv(sv, (NV)Perl_rc); | |
589 | sv_setpv(sv, os2error(Perl_rc)); | |
590 | } | |
88e89b8a | 591 | #else |
22fae026 | 592 | #ifdef WIN32 |
0a378802 JH |
593 | { |
594 | DWORD dwErr = GetLastError(); | |
595 | sv_setnv(sv, (NV)dwErr); | |
596 | if (dwErr) | |
597 | { | |
598 | PerlProc_GetOSError(sv, dwErr); | |
599 | } | |
600 | else | |
601 | sv_setpv(sv, ""); | |
602 | SetLastError(dwErr); | |
603 | } | |
22fae026 | 604 | #else |
0a378802 JH |
605 | sv_setnv(sv, (NV)errno); |
606 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
28f23441 | 607 | #endif |
88e89b8a | 608 | #endif |
22fae026 | 609 | #endif |
cd39f2b6 | 610 | #endif |
0a378802 JH |
611 | SvNOK_on(sv); /* what a wonderful hack! */ |
612 | } | |
613 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
614 | sv_setsv(sv, PL_encoding); | |
615 | break; | |
79072805 | 616 | case '\006': /* ^F */ |
3280af22 | 617 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 618 | break; |
a0d0e21e | 619 | case '\010': /* ^H */ |
3280af22 | 620 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 621 | break; |
9d116dd7 | 622 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
623 | if (PL_inplace) |
624 | sv_setpv(sv, PL_inplace); | |
79072805 | 625 | else |
3280af22 | 626 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 627 | break; |
ac27b0f5 NIS |
628 | case '\017': /* ^O & ^OPEN */ |
629 | if (*(mg->mg_ptr+1) == '\0') | |
630 | sv_setpv(sv, PL_osname); | |
631 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
632 | if (!PL_compiling.cop_io) | |
633 | sv_setsv(sv, &PL_sv_undef); | |
634 | else { | |
635 | sv_setsv(sv, PL_compiling.cop_io); | |
636 | } | |
637 | } | |
28f23441 | 638 | break; |
79072805 | 639 | case '\020': /* ^P */ |
3280af22 | 640 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 641 | break; |
fb73857a | 642 | case '\023': /* ^S */ |
4ffa73a3 | 643 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 644 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 645 | (void)SvOK_off(sv); |
3280af22 | 646 | else if (PL_in_eval) |
6dc8a9e4 | 647 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
648 | else |
649 | sv_setiv(sv, 0); | |
d58bf5aa | 650 | } |
fb73857a | 651 | break; |
79072805 | 652 | case '\024': /* ^T */ |
7c36658b | 653 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 654 | #ifdef BIG_TIME |
7c36658b | 655 | sv_setnv(sv, PL_basetime); |
88e89b8a | 656 | #else |
7c36658b | 657 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 658 | #endif |
7c36658b MS |
659 | } |
660 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
661 | sv_setiv(sv, PL_tainting |
662 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
663 | : 0); | |
7c36658b | 664 | break; |
a05d7ebb JH |
665 | case '\025': /* $^UNICODE */ |
666 | if (strEQ(mg->mg_ptr, "\025NICODE")) | |
667 | sv_setuv(sv, (UV) PL_unicode); | |
fde18df1 JH |
668 | break; |
669 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
670 | if (*(mg->mg_ptr+1) == '\0') |
671 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 672 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
673 | if (PL_compiling.cop_warnings == pWARN_NONE || |
674 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
675 | { |
676 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
677 | } | |
d3a7d8c7 | 678 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 679 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 680 | } |
4438c4b7 JH |
681 | else { |
682 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 683 | } |
d3a7d8c7 | 684 | SvPOK_only(sv); |
4438c4b7 | 685 | } |
79072805 LW |
686 | break; |
687 | case '1': case '2': case '3': case '4': | |
688 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 689 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
690 | I32 s1, t1; |
691 | ||
a863c7d1 MB |
692 | /* |
693 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
694 | * XXX Does the new way break anything? | |
695 | */ | |
ffc61ed2 | 696 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 697 | getparen: |
eb160463 | 698 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
699 | (s1 = rx->startp[paren]) != -1 && |
700 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 701 | { |
cf93c79d IZ |
702 | i = t1 - s1; |
703 | s = rx->subbeg + s1; | |
01ec43d0 | 704 | if (!rx->subbeg) |
c2e66d9e GS |
705 | break; |
706 | ||
13f57bf8 | 707 | getrx: |
748a9306 | 708 | if (i >= 0) { |
cf93c79d | 709 | sv_setpvn(sv, s, i); |
a30b2f1f | 710 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
711 | SvUTF8_on(sv); |
712 | else | |
713 | SvUTF8_off(sv); | |
e9814ee1 HS |
714 | if (PL_tainting) { |
715 | if (RX_MATCH_TAINTED(rx)) { | |
716 | MAGIC* mg = SvMAGIC(sv); | |
717 | MAGIC* mgt; | |
718 | PL_tainted = 1; | |
719 | SvMAGIC(sv) = mg->mg_moremagic; | |
720 | SvTAINT(sv); | |
721 | if ((mgt = SvMAGIC(sv))) { | |
722 | mg->mg_moremagic = mgt; | |
723 | SvMAGIC(sv) = mg; | |
724 | } | |
725 | } else | |
726 | SvTAINTED_off(sv); | |
727 | } | |
748a9306 LW |
728 | break; |
729 | } | |
79072805 | 730 | } |
79072805 | 731 | } |
3280af22 | 732 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
733 | break; |
734 | case '+': | |
aaa362c4 | 735 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 736 | paren = rx->lastparen; |
a0d0e21e LW |
737 | if (paren) |
738 | goto getparen; | |
79072805 | 739 | } |
3280af22 | 740 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 741 | break; |
a01268b5 JH |
742 | case '\016': /* ^N */ |
743 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
744 | paren = rx->lastcloseparen; | |
745 | if (paren) | |
746 | goto getparen; | |
747 | } | |
748 | sv_setsv(sv,&PL_sv_undef); | |
749 | break; | |
79072805 | 750 | case '`': |
aaa362c4 | 751 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
752 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
753 | i = rx->startp[0]; | |
13f57bf8 | 754 | goto getrx; |
79072805 | 755 | } |
79072805 | 756 | } |
3280af22 | 757 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
758 | break; |
759 | case '\'': | |
aaa362c4 | 760 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
761 | if (rx->subbeg && rx->endp[0] != -1) { |
762 | s = rx->subbeg + rx->endp[0]; | |
763 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 764 | goto getrx; |
79072805 | 765 | } |
79072805 | 766 | } |
3280af22 | 767 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
768 | break; |
769 | case '.': | |
770 | #ifndef lint | |
3280af22 | 771 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 772 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
773 | } |
774 | #endif | |
775 | break; | |
776 | case '?': | |
809a5acc | 777 | { |
809a5acc | 778 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 779 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
780 | LvTARGOFF(sv) = PL_statusvalue; |
781 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 782 | #endif |
809a5acc | 783 | } |
79072805 LW |
784 | break; |
785 | case '^': | |
3280af22 | 786 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
787 | if (s) |
788 | sv_setpv(sv,s); | |
789 | else { | |
3280af22 | 790 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
791 | sv_catpv(sv,"_TOP"); |
792 | } | |
793 | break; | |
794 | case '~': | |
3280af22 | 795 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 796 | if (!s) |
3280af22 | 797 | s = GvENAME(PL_defoutgv); |
79072805 LW |
798 | sv_setpv(sv,s); |
799 | break; | |
800 | #ifndef lint | |
801 | case '=': | |
3280af22 | 802 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
803 | break; |
804 | case '-': | |
3280af22 | 805 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
806 | break; |
807 | case '%': | |
3280af22 | 808 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
809 | break; |
810 | #endif | |
811 | case ':': | |
812 | break; | |
813 | case '/': | |
814 | break; | |
815 | case '[': | |
3280af22 | 816 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
817 | break; |
818 | case '|': | |
3280af22 | 819 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
820 | break; |
821 | case ',': | |
79072805 LW |
822 | break; |
823 | case '\\': | |
b2ce0fda | 824 | if (PL_ors_sv) |
f28098ff | 825 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
826 | break; |
827 | case '#': | |
3280af22 | 828 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
829 | break; |
830 | case '!': | |
a5f75d66 | 831 | #ifdef VMS |
65202027 | 832 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 833 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 834 | #else |
88e89b8a | 835 | { |
836 | int saveerrno = errno; | |
65202027 | 837 | sv_setnv(sv, (NV)errno); |
88e89b8a | 838 | #ifdef OS2 |
ed344e4f IZ |
839 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
840 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 841 | else |
a5f75d66 | 842 | #endif |
2304df62 | 843 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 844 | errno = saveerrno; |
845 | } | |
846 | #endif | |
946ec16e | 847 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
848 | break; |
849 | case '<': | |
3280af22 | 850 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
851 | break; |
852 | case '>': | |
3280af22 | 853 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
854 | break; |
855 | case '(': | |
3280af22 | 856 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 857 | #ifdef HAS_GETGROUPS |
785fb66b | 858 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 859 | #endif |
79072805 LW |
860 | goto add_groups; |
861 | case ')': | |
3280af22 | 862 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 863 | #ifdef HAS_GETGROUPS |
785fb66b | 864 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 865 | #endif |
79072805 | 866 | add_groups: |
79072805 | 867 | #ifdef HAS_GETGROUPS |
79072805 | 868 | { |
a0d0e21e | 869 | Groups_t gary[NGROUPS]; |
79072805 | 870 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 871 | while (--i >= 0) |
785fb66b | 872 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
873 | } |
874 | #endif | |
155aba94 | 875 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
876 | break; |
877 | case '*': | |
878 | break; | |
cd39f2b6 | 879 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
880 | case '0': |
881 | break; | |
cd39f2b6 | 882 | #endif |
79072805 | 883 | } |
a0d0e21e | 884 | return 0; |
79072805 LW |
885 | } |
886 | ||
887 | int | |
864dbfa3 | 888 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
889 | { |
890 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
891 | ||
892 | if (uf && uf->uf_val) | |
24f81a43 | 893 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
894 | return 0; |
895 | } | |
896 | ||
897 | int | |
864dbfa3 | 898 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
899 | { |
900 | register char *s; | |
88e89b8a | 901 | char *ptr; |
5aabfad6 | 902 | STRLEN len, klen; |
1e422769 | 903 | |
a0d0e21e | 904 | s = SvPV(sv,len); |
5aabfad6 | 905 | ptr = MgPV(mg,klen); |
88e89b8a | 906 | my_setenv(ptr, s); |
1e422769 | 907 | |
a0d0e21e LW |
908 | #ifdef DYNAMIC_ENV_FETCH |
909 | /* We just undefd an environment var. Is a replacement */ | |
910 | /* waiting in the wings? */ | |
911 | if (!len) { | |
5aabfad6 | 912 | SV **valp; |
6b88bc9c | 913 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 914 | s = SvPV(*valp, len); |
a0d0e21e LW |
915 | } |
916 | #endif | |
1e422769 | 917 | |
39e571d4 | 918 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
919 | /* And you'll never guess what the dog had */ |
920 | /* in its mouth... */ | |
3280af22 | 921 | if (PL_tainting) { |
1e422769 | 922 | MgTAINTEDDIR_off(mg); |
923 | #ifdef VMS | |
5aabfad6 | 924 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 925 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 926 | Stat_t sbuf; |
1e422769 | 927 | int i = 0, j = 0; |
928 | ||
929 | do { /* DCL$PATH may be a search list */ | |
930 | while (1) { /* as may dev portion of any element */ | |
931 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
932 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
933 | cando_by_name(S_IWUSR,0,elt) ) { | |
934 | MgTAINTEDDIR_on(mg); | |
935 | return 0; | |
936 | } | |
937 | } | |
938 | if ((cp = strchr(elt, ':')) != Nullch) | |
939 | *cp = '\0'; | |
940 | if (my_trnlnm(elt, eltbuf, j++)) | |
941 | elt = eltbuf; | |
942 | else | |
943 | break; | |
944 | } | |
945 | j = 0; | |
946 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
947 | } | |
948 | #endif /* VMS */ | |
5aabfad6 | 949 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 950 | char *strend = s + len; |
463ee0b2 LW |
951 | |
952 | while (s < strend) { | |
96827780 | 953 | char tmpbuf[256]; |
c623ac67 | 954 | Stat_t st; |
5f74f29c | 955 | I32 i; |
96827780 | 956 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 957 | s, strend, ':', &i); |
463ee0b2 | 958 | s++; |
96827780 MB |
959 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
960 | || *tmpbuf != '/' | |
c6ed36e1 | 961 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 962 | MgTAINTEDDIR_on(mg); |
1e422769 | 963 | return 0; |
964 | } | |
463ee0b2 | 965 | } |
79072805 LW |
966 | } |
967 | } | |
39e571d4 | 968 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 969 | |
79072805 LW |
970 | return 0; |
971 | } | |
972 | ||
973 | int | |
864dbfa3 | 974 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 975 | { |
2d8e6c8d GS |
976 | STRLEN n_a; |
977 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
978 | return 0; |
979 | } | |
980 | ||
88e89b8a | 981 | int |
864dbfa3 | 982 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 983 | { |
984 | #if defined(VMS) | |
cea2e8a9 | 985 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 986 | #else |
3280af22 | 987 | if (PL_localizing) { |
fb73857a | 988 | HE* entry; |
2d8e6c8d | 989 | STRLEN n_a; |
fb73857a | 990 | magic_clear_all_env(sv,mg); |
991 | hv_iterinit((HV*)sv); | |
155aba94 | 992 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 993 | I32 keylen; |
994 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 995 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 996 | } |
997 | } | |
998 | #endif | |
999 | return 0; | |
1000 | } | |
1001 | ||
1002 | int | |
864dbfa3 | 1003 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1004 | { |
ed79a026 | 1005 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 1006 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1007 | #else |
4efc5df6 | 1008 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1009 | PerlEnv_clearenv(); |
4efc5df6 GS |
1010 | # else |
1011 | # ifdef USE_ENVIRON_ARRAY | |
1012 | # if defined(USE_ITHREADS) | |
1013 | /* only the parent thread can clobber the process environment */ | |
1014 | if (PL_curinterp == aTHX) | |
1015 | # endif | |
1016 | { | |
1017 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
1018 | I32 i; |
1019 | ||
3280af22 | 1020 | if (environ == PL_origenviron) |
f2517201 | 1021 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1022 | else |
1023 | for (i = 0; environ[i]; i++) | |
f2517201 | 1024 | safesysfree(environ[i]); |
4efc5df6 | 1025 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1026 | |
66b1d557 | 1027 | environ[0] = Nullch; |
4efc5df6 GS |
1028 | } |
1029 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 JH |
1030 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
1031 | #endif /* VMS || EPC */ | |
3e3baf6d | 1032 | return 0; |
66b1d557 HM |
1033 | } |
1034 | ||
2e34cc90 CL |
1035 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1036 | static int sig_handlers_initted = 0; | |
1037 | #endif | |
7719e241 | 1038 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1039 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1040 | #endif | |
2e34cc90 CL |
1041 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1042 | static int sig_defaulting[SIG_SIZE]; | |
1043 | #endif | |
85b332e2 | 1044 | |
64ca3a65 | 1045 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1046 | #ifdef HAS_SIGPROCMASK |
1047 | static void | |
1048 | restore_sigmask(pTHX_ SV *save_sv) | |
1049 | { | |
1050 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); | |
1051 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); | |
1052 | } | |
1053 | #endif | |
66b1d557 | 1054 | int |
864dbfa3 | 1055 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1056 | { |
1057 | I32 i; | |
2d8e6c8d | 1058 | STRLEN n_a; |
88e89b8a | 1059 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1060 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1061 | if (i) { |
22c35a8c GS |
1062 | if(PL_psig_ptr[i]) |
1063 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1064 | else { |
85b332e2 | 1065 | Sighandler_t sigstate; |
2e34cc90 | 1066 | sigstate = rsignal_state(i); |
23ada85b | 1067 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1068 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1069 | #endif | |
1070 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1071 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1072 | #endif |
88e89b8a | 1073 | /* cache state so we don't fetch it again */ |
ff68c719 | 1074 | if(sigstate == SIG_IGN) |
88e89b8a | 1075 | sv_setpv(sv,"IGNORE"); |
1076 | else | |
3280af22 | 1077 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1078 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1079 | SvTEMP_off(sv); |
1080 | } | |
1081 | } | |
1082 | return 0; | |
1083 | } | |
1084 | int | |
864dbfa3 | 1085 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1086 | { |
2d4fcd5e AJ |
1087 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1088 | * refactoring might be in order. | |
1089 | */ | |
1090 | register char *s; | |
2d8e6c8d | 1091 | STRLEN n_a; |
2d4fcd5e AJ |
1092 | SV* to_dec; |
1093 | s = MgPV(mg,n_a); | |
1094 | if (*s == '_') { | |
1095 | SV** svp; | |
1096 | if (strEQ(s,"__DIE__")) | |
1097 | svp = &PL_diehook; | |
1098 | else if (strEQ(s,"__WARN__")) | |
1099 | svp = &PL_warnhook; | |
1100 | else | |
1101 | Perl_croak(aTHX_ "No such hook: %s", s); | |
1102 | if (*svp) { | |
1103 | to_dec = *svp; | |
1104 | *svp = 0; | |
1105 | SvREFCNT_dec(to_dec); | |
1106 | } | |
1107 | } | |
1108 | else { | |
1109 | I32 i; | |
1110 | /* Are we clearing a signal entry? */ | |
1111 | i = whichsig(s); | |
1112 | if (i) { | |
1113 | #ifdef HAS_SIGPROCMASK | |
1114 | sigset_t set, save; | |
1115 | SV* save_sv; | |
1116 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1117 | sigemptyset(&set); | |
1118 | sigaddset(&set,i); | |
1119 | sigprocmask(SIG_BLOCK, &set, &save); | |
1120 | ENTER; | |
1121 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1122 | SAVEFREESV(save_sv); | |
1123 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1124 | #endif | |
1125 | PERL_ASYNC_CHECK(); | |
1126 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
1127 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1128 | #endif | |
1129 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1130 | sig_defaulting[i] = 1; | |
1131 | (void)rsignal(i, &Perl_csighandler); | |
1132 | #else | |
1133 | (void)rsignal(i, SIG_DFL); | |
1134 | #endif | |
1135 | if(PL_psig_name[i]) { | |
1136 | SvREFCNT_dec(PL_psig_name[i]); | |
1137 | PL_psig_name[i]=0; | |
1138 | } | |
1139 | if(PL_psig_ptr[i]) { | |
1140 | to_dec=PL_psig_ptr[i]; | |
1141 | PL_psig_ptr[i]=0; | |
1142 | LEAVE; | |
1143 | SvREFCNT_dec(to_dec); | |
1144 | } | |
1145 | else | |
1146 | LEAVE; | |
1147 | } | |
88e89b8a | 1148 | } |
1149 | return 0; | |
1150 | } | |
3d37d572 | 1151 | |
0a8e0eff NIS |
1152 | void |
1153 | Perl_raise_signal(pTHX_ int sig) | |
1154 | { | |
1155 | /* Set a flag to say this signal is pending */ | |
1156 | PL_psig_pend[sig]++; | |
1157 | /* And one to say _a_ signal is pending */ | |
1158 | PL_sig_pending = 1; | |
1159 | } | |
1160 | ||
1161 | Signal_t | |
1162 | Perl_csighandler(int sig) | |
1163 | { | |
1018e26f NIS |
1164 | #ifdef PERL_GET_SIG_CONTEXT |
1165 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1166 | #else | |
85b332e2 CL |
1167 | dTHX; |
1168 | #endif | |
23ada85b | 1169 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1170 | (void) rsignal(sig, &Perl_csighandler); |
1171 | if (sig_ignoring[sig]) return; | |
1172 | #endif | |
2e34cc90 | 1173 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1174 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1175 | #ifdef KILL_BY_SIGPRC |
1176 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1177 | #else | |
1178 | exit(1); | |
1179 | #endif | |
1180 | #endif | |
4ffa73a3 JH |
1181 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1182 | /* Call the perl level handler now-- | |
1183 | * with risk we may be in malloc() etc. */ | |
1184 | (*PL_sighandlerp)(sig); | |
1185 | else | |
1186 | Perl_raise_signal(aTHX_ sig); | |
0a8e0eff NIS |
1187 | } |
1188 | ||
2e34cc90 CL |
1189 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1190 | void | |
1191 | Perl_csighandler_init(void) | |
1192 | { | |
1193 | int sig; | |
1194 | if (sig_handlers_initted) return; | |
1195 | ||
1196 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1197 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1198 | dTHX; |
2e34cc90 CL |
1199 | sig_defaulting[sig] = 1; |
1200 | (void) rsignal(sig, &Perl_csighandler); | |
1201 | #endif | |
1202 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1203 | sig_ignoring[sig] = 0; | |
1204 | #endif | |
1205 | } | |
1206 | sig_handlers_initted = 1; | |
1207 | } | |
1208 | #endif | |
1209 | ||
0a8e0eff NIS |
1210 | void |
1211 | Perl_despatch_signals(pTHX) | |
1212 | { | |
1213 | int sig; | |
1214 | PL_sig_pending = 0; | |
1215 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1216 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1217 | PERL_BLOCKSIG_ADD(set, sig); |
1218 | PL_psig_pend[sig] = 0; | |
1219 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1220 | (*PL_sighandlerp)(sig); |
25da4428 | 1221 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1222 | } |
1223 | } | |
1224 | } | |
1225 | ||
85e6fe83 | 1226 | int |
864dbfa3 | 1227 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1228 | { |
1229 | register char *s; | |
1230 | I32 i; | |
b7953727 | 1231 | SV** svp = 0; |
2d4fcd5e AJ |
1232 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1233 | * effects (due to closures). We must make sure that the new disposition | |
1234 | * is in place before it is called. | |
1235 | */ | |
1236 | SV* to_dec = 0; | |
e72dc28c | 1237 | STRLEN len; |
2d4fcd5e AJ |
1238 | #ifdef HAS_SIGPROCMASK |
1239 | sigset_t set, save; | |
1240 | SV* save_sv; | |
1241 | #endif | |
a0d0e21e | 1242 | |
e72dc28c | 1243 | s = MgPV(mg,len); |
748a9306 LW |
1244 | if (*s == '_') { |
1245 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1246 | svp = &PL_diehook; |
748a9306 | 1247 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1248 | svp = &PL_warnhook; |
748a9306 | 1249 | else |
cea2e8a9 | 1250 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1251 | i = 0; |
4633a7c4 | 1252 | if (*svp) { |
2d4fcd5e | 1253 | to_dec = *svp; |
4633a7c4 LW |
1254 | *svp = 0; |
1255 | } | |
748a9306 LW |
1256 | } |
1257 | else { | |
1258 | i = whichsig(s); /* ...no, a brick */ | |
1259 | if (!i) { | |
e476b1b5 | 1260 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1261 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1262 | return 0; |
1263 | } | |
2d4fcd5e AJ |
1264 | #ifdef HAS_SIGPROCMASK |
1265 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1266 | sigemptyset(&set); | |
1267 | sigaddset(&set,i); | |
1268 | sigprocmask(SIG_BLOCK, &set, &save); | |
1269 | ENTER; | |
1270 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1271 | SAVEFREESV(save_sv); | |
1272 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1273 | #endif | |
1274 | PERL_ASYNC_CHECK(); | |
2e34cc90 CL |
1275 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1276 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1277 | #endif | |
23ada85b | 1278 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1279 | sig_ignoring[i] = 0; |
1280 | #endif | |
2e34cc90 | 1281 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
2d4fcd5e | 1282 | sig_defaulting[i] = 0; |
2e34cc90 | 1283 | #endif |
22c35a8c | 1284 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1285 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1286 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1287 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1288 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1289 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1290 | } |
a0d0e21e | 1291 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1292 | if (i) { |
0a8e0eff | 1293 | (void)rsignal(i, &Perl_csighandler); |
2d4fcd5e AJ |
1294 | #ifdef HAS_SIGPROCMASK |
1295 | LEAVE; | |
1296 | #endif | |
1297 | } | |
748a9306 LW |
1298 | else |
1299 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1300 | if(to_dec) |
1301 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1302 | return 0; |
1303 | } | |
e72dc28c | 1304 | s = SvPV_force(sv,len); |
748a9306 | 1305 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1306 | if (i) { |
23ada85b | 1307 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1308 | sig_ignoring[i] = 1; |
1309 | (void)rsignal(i, &Perl_csighandler); | |
1310 | #else | |
ff68c719 | 1311 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1312 | #endif |
2d4fcd5e | 1313 | } |
748a9306 LW |
1314 | } |
1315 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1316 | if (i) | |
2e34cc90 CL |
1317 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1318 | { | |
1319 | sig_defaulting[i] = 1; | |
1320 | (void)rsignal(i, &Perl_csighandler); | |
1321 | } | |
1322 | #else | |
ff68c719 | 1323 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1324 | #endif |
748a9306 | 1325 | } |
79072805 | 1326 | else { |
5aabfad6 | 1327 | /* |
1328 | * We should warn if HINT_STRICT_REFS, but without | |
1329 | * access to a known hint bit in a known OP, we can't | |
1330 | * tell whether HINT_STRICT_REFS is in force or not. | |
1331 | */ | |
46fc3d4c | 1332 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1333 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1334 | if (i) |
0a8e0eff | 1335 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1336 | else |
1337 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1338 | } |
2d4fcd5e AJ |
1339 | #ifdef HAS_SIGPROCMASK |
1340 | if(i) | |
1341 | LEAVE; | |
1342 | #endif | |
1343 | if(to_dec) | |
1344 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1345 | return 0; |
1346 | } | |
64ca3a65 | 1347 | #endif /* !PERL_MICRO */ |
79072805 LW |
1348 | |
1349 | int | |
864dbfa3 | 1350 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1351 | { |
3280af22 | 1352 | PL_sub_generation++; |
463ee0b2 LW |
1353 | return 0; |
1354 | } | |
1355 | ||
1356 | int | |
864dbfa3 | 1357 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1358 | { |
a0d0e21e | 1359 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1360 | PL_amagic_generation++; |
463ee0b2 | 1361 | |
a0d0e21e LW |
1362 | return 0; |
1363 | } | |
463ee0b2 | 1364 | |
946ec16e | 1365 | int |
864dbfa3 | 1366 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1367 | { |
1368 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1369 | I32 i = 0; |
7719e241 | 1370 | |
6ff81951 | 1371 | if (hv) { |
497b47a8 JH |
1372 | (void) hv_iterinit(hv); |
1373 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1374 | i = HvKEYS(hv); | |
1375 | else { | |
1376 | while (hv_iternext(hv)) | |
1377 | i++; | |
1378 | } | |
6ff81951 GS |
1379 | } |
1380 | ||
1381 | sv_setiv(sv, (IV)i); | |
1382 | return 0; | |
1383 | } | |
1384 | ||
1385 | int | |
864dbfa3 | 1386 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1387 | { |
1388 | if (LvTARG(sv)) { | |
1389 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1390 | } |
1391 | return 0; | |
ac27b0f5 | 1392 | } |
946ec16e | 1393 | |
e336de0d | 1394 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1395 | STATIC int |
cea2e8a9 | 1396 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1397 | { |
1398 | dSP; | |
463ee0b2 | 1399 | |
924508f0 GS |
1400 | PUSHMARK(SP); |
1401 | EXTEND(SP, n); | |
33c27489 | 1402 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1403 | if (n > 1) { |
93965878 | 1404 | if (mg->mg_ptr) { |
565764a8 | 1405 | if (mg->mg_len >= 0) |
79cb57f6 | 1406 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1407 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1408 | PUSHs((SV*)mg->mg_ptr); |
1409 | } | |
14befaf4 | 1410 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1411 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1412 | } |
1413 | } | |
1414 | if (n > 2) { | |
1415 | PUSHs(val); | |
88e89b8a | 1416 | } |
463ee0b2 LW |
1417 | PUTBACK; |
1418 | ||
864dbfa3 | 1419 | return call_method(meth, flags); |
946ec16e | 1420 | } |
1421 | ||
76e3520e | 1422 | STATIC int |
cea2e8a9 | 1423 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1424 | { |
1425 | dSP; | |
463ee0b2 | 1426 | |
a0d0e21e LW |
1427 | ENTER; |
1428 | SAVETMPS; | |
e788e7d3 | 1429 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1430 | |
33c27489 | 1431 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1432 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1433 | } |
463ee0b2 | 1434 | |
d3acc0f7 | 1435 | POPSTACK; |
a0d0e21e LW |
1436 | FREETMPS; |
1437 | LEAVE; | |
1438 | return 0; | |
1439 | } | |
463ee0b2 | 1440 | |
a0d0e21e | 1441 | int |
864dbfa3 | 1442 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1443 | { |
1444 | magic_methpack(sv,mg,"FETCH"); | |
1445 | if (mg->mg_ptr) | |
1446 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1447 | return 0; |
1448 | } | |
1449 | ||
1450 | int | |
864dbfa3 | 1451 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1452 | { |
1453 | dSP; | |
a60c0954 | 1454 | ENTER; |
e788e7d3 | 1455 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1456 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1457 | POPSTACK; |
a60c0954 | 1458 | LEAVE; |
463ee0b2 LW |
1459 | return 0; |
1460 | } | |
1461 | ||
1462 | int | |
864dbfa3 | 1463 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1464 | { |
a0d0e21e LW |
1465 | return magic_methpack(sv,mg,"DELETE"); |
1466 | } | |
463ee0b2 | 1467 | |
93965878 NIS |
1468 | |
1469 | U32 | |
864dbfa3 | 1470 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1471 | { |
e336de0d | 1472 | dSP; |
93965878 NIS |
1473 | U32 retval = 0; |
1474 | ||
1475 | ENTER; | |
1476 | SAVETMPS; | |
e788e7d3 | 1477 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1478 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1479 | sv = *PL_stack_sp--; |
a60c0954 | 1480 | retval = (U32) SvIV(sv)-1; |
93965878 | 1481 | } |
d3acc0f7 | 1482 | POPSTACK; |
93965878 NIS |
1483 | FREETMPS; |
1484 | LEAVE; | |
1485 | return retval; | |
1486 | } | |
1487 | ||
cea2e8a9 GS |
1488 | int |
1489 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1490 | { |
1491 | dSP; | |
463ee0b2 | 1492 | |
e336de0d | 1493 | ENTER; |
e788e7d3 | 1494 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1495 | PUSHMARK(SP); |
33c27489 | 1496 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1497 | PUTBACK; |
864dbfa3 | 1498 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1499 | POPSTACK; |
a60c0954 | 1500 | LEAVE; |
463ee0b2 LW |
1501 | return 0; |
1502 | } | |
1503 | ||
1504 | int | |
864dbfa3 | 1505 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1506 | { |
463ee0b2 | 1507 | dSP; |
dff6d3cd | 1508 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1509 | |
1510 | ENTER; | |
a0d0e21e | 1511 | SAVETMPS; |
e788e7d3 | 1512 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1513 | PUSHMARK(SP); |
1514 | EXTEND(SP, 2); | |
33c27489 | 1515 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1516 | if (SvOK(key)) |
1517 | PUSHs(key); | |
1518 | PUTBACK; | |
1519 | ||
864dbfa3 | 1520 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1521 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1522 | |
d3acc0f7 | 1523 | POPSTACK; |
a0d0e21e LW |
1524 | FREETMPS; |
1525 | LEAVE; | |
79072805 LW |
1526 | return 0; |
1527 | } | |
1528 | ||
1529 | int | |
864dbfa3 | 1530 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1531 | { |
1532 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1533 | } |
a0d0e21e LW |
1534 | |
1535 | int | |
864dbfa3 | 1536 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1537 | { |
1538 | OP *o; | |
1539 | I32 i; | |
1540 | GV* gv; | |
1541 | SV** svp; | |
2d8e6c8d | 1542 | STRLEN n_a; |
79072805 | 1543 | |
3280af22 | 1544 | gv = PL_DBline; |
79072805 | 1545 | i = SvTRUE(sv); |
188ea221 | 1546 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1547 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 DM |
1548 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1549 | /* set or clear breakpoint in the relevant control op */ | |
1550 | if (i) | |
1551 | o->op_flags |= OPf_SPECIAL; | |
1552 | else | |
1553 | o->op_flags &= ~OPf_SPECIAL; | |
1554 | } | |
79072805 LW |
1555 | return 0; |
1556 | } | |
1557 | ||
1558 | int | |
864dbfa3 | 1559 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1560 | { |
3280af22 | 1561 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1562 | return 0; |
1563 | } | |
1564 | ||
1565 | int | |
864dbfa3 | 1566 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1567 | { |
3280af22 | 1568 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1569 | return 0; |
1570 | } | |
1571 | ||
1572 | int | |
864dbfa3 | 1573 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1574 | { |
1575 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1576 | |
a0d0e21e | 1577 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1578 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1579 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1580 | I32 i = mg->mg_len; |
7e2040f0 | 1581 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1582 | sv_pos_b2u(lsv, &i); |
1583 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1584 | return 0; |
1585 | } | |
1586 | } | |
1587 | (void)SvOK_off(sv); | |
1588 | return 0; | |
1589 | } | |
1590 | ||
1591 | int | |
864dbfa3 | 1592 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1593 | { |
1594 | SV* lsv = LvTARG(sv); | |
1595 | SSize_t pos; | |
1596 | STRLEN len; | |
c00206c8 | 1597 | STRLEN ulen = 0; |
a0d0e21e LW |
1598 | |
1599 | mg = 0; | |
ac27b0f5 | 1600 | |
a0d0e21e | 1601 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1602 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1603 | if (!mg) { |
1604 | if (!SvOK(sv)) | |
1605 | return 0; | |
14befaf4 DM |
1606 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1607 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1608 | } |
1609 | else if (!SvOK(sv)) { | |
565764a8 | 1610 | mg->mg_len = -1; |
a0d0e21e LW |
1611 | return 0; |
1612 | } | |
1613 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1614 | ||
c485e607 | 1615 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1616 | |
7e2040f0 | 1617 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1618 | ulen = sv_len_utf8(lsv); |
1619 | if (ulen) | |
1620 | len = ulen; | |
a0ed51b3 LW |
1621 | } |
1622 | ||
a0d0e21e LW |
1623 | if (pos < 0) { |
1624 | pos += len; | |
1625 | if (pos < 0) | |
1626 | pos = 0; | |
1627 | } | |
eb160463 | 1628 | else if (pos > (SSize_t)len) |
a0d0e21e | 1629 | pos = len; |
a0ed51b3 LW |
1630 | |
1631 | if (ulen) { | |
1632 | I32 p = pos; | |
1633 | sv_pos_u2b(lsv, &p, 0); | |
1634 | pos = p; | |
1635 | } | |
727405f8 | 1636 | |
565764a8 | 1637 | mg->mg_len = pos; |
71be2cbc | 1638 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1639 | |
79072805 LW |
1640 | return 0; |
1641 | } | |
1642 | ||
1643 | int | |
864dbfa3 | 1644 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1645 | { |
8646b087 | 1646 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1647 | SvFAKE_off(sv); | |
946ec16e | 1648 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1649 | SvFAKE_on(sv); |
1650 | } | |
1651 | else | |
946ec16e | 1652 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1653 | return 0; |
1654 | } | |
1655 | ||
1656 | int | |
864dbfa3 | 1657 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1658 | { |
1659 | register char *s; | |
1660 | GV* gv; | |
2d8e6c8d | 1661 | STRLEN n_a; |
79072805 LW |
1662 | |
1663 | if (!SvOK(sv)) | |
1664 | return 0; | |
2d8e6c8d | 1665 | s = SvPV(sv, n_a); |
79072805 LW |
1666 | if (*s == '*' && s[1]) |
1667 | s++; | |
85e6fe83 | 1668 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1669 | if (sv == (SV*)gv) |
1670 | return 0; | |
1671 | if (GvGP(sv)) | |
88e89b8a | 1672 | gp_free((GV*)sv); |
79072805 | 1673 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1674 | return 0; |
1675 | } | |
1676 | ||
1677 | int | |
864dbfa3 | 1678 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1679 | { |
1680 | STRLEN len; | |
1681 | SV *lsv = LvTARG(sv); | |
1682 | char *tmps = SvPV(lsv,len); | |
1683 | I32 offs = LvTARGOFF(sv); | |
1684 | I32 rem = LvTARGLEN(sv); | |
1685 | ||
9aa983d2 JH |
1686 | if (SvUTF8(lsv)) |
1687 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1688 | if (offs > (I32)len) |
6ff81951 | 1689 | offs = len; |
eb160463 | 1690 | if (rem + offs > (I32)len) |
6ff81951 GS |
1691 | rem = len - offs; |
1692 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1693 | if (SvUTF8(lsv)) |
2ef4b674 | 1694 | SvUTF8_on(sv); |
6ff81951 GS |
1695 | return 0; |
1696 | } | |
1697 | ||
1698 | int | |
864dbfa3 | 1699 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1700 | { |
9aa983d2 JH |
1701 | STRLEN len; |
1702 | char *tmps = SvPV(sv, len); | |
1703 | SV *lsv = LvTARG(sv); | |
1704 | I32 lvoff = LvTARGOFF(sv); | |
1705 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1706 | |
1aa99e6b | 1707 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1708 | sv_utf8_upgrade(lsv); |
1709 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1710 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1711 | SvUTF8_on(lsv); | |
1712 | } | |
9bf12eaf | 1713 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1714 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1715 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1716 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1717 | Safefree(tmps); | |
1aa99e6b IH |
1718 | } |
1719 | else | |
9aa983d2 | 1720 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1721 | |
79072805 LW |
1722 | return 0; |
1723 | } | |
1724 | ||
1725 | int | |
864dbfa3 | 1726 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1727 | { |
565764a8 | 1728 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1729 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1730 | return 0; |
1731 | } | |
1732 | ||
1733 | int | |
864dbfa3 | 1734 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1735 | { |
3280af22 NIS |
1736 | if (PL_localizing) { |
1737 | if (PL_localizing == 1) | |
565764a8 | 1738 | mg->mg_len <<= 1; |
748a9306 | 1739 | else |
565764a8 | 1740 | mg->mg_len >>= 1; |
a0d0e21e | 1741 | } |
3280af22 | 1742 | else if (PL_tainted) |
565764a8 | 1743 | mg->mg_len |= 1; |
748a9306 | 1744 | else |
565764a8 | 1745 | mg->mg_len &= ~1; |
463ee0b2 LW |
1746 | return 0; |
1747 | } | |
1748 | ||
1749 | int | |
864dbfa3 | 1750 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1751 | { |
1752 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1753 | |
1754 | if (!lsv) { | |
155aba94 | 1755 | (void)SvOK_off(sv); |
6ff81951 GS |
1756 | return 0; |
1757 | } | |
6ff81951 | 1758 | |
81e118e0 | 1759 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1760 | return 0; |
1761 | } | |
1762 | ||
1763 | int | |
864dbfa3 | 1764 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1765 | { |
1766 | do_vecset(sv); /* XXX slurp this routine */ | |
1767 | return 0; | |
1768 | } | |
1769 | ||
1770 | int | |
864dbfa3 | 1771 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1772 | { |
71be2cbc | 1773 | SV *targ = Nullsv; |
5f05dabc | 1774 | if (LvTARGLEN(sv)) { |
68dc0745 | 1775 | if (mg->mg_obj) { |
74e13ce4 | 1776 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1777 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1778 | if (he) | |
1779 | targ = HeVAL(he); | |
68dc0745 | 1780 | } |
1781 | else { | |
3c78fafa | 1782 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1783 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1784 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1785 | } | |
3280af22 | 1786 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1787 | /* somebody else defined it for us */ |
1788 | SvREFCNT_dec(LvTARG(sv)); | |
1789 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1790 | LvTARGLEN(sv) = 0; | |
1791 | SvREFCNT_dec(mg->mg_obj); | |
1792 | mg->mg_obj = Nullsv; | |
1793 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1794 | } | |
5f05dabc | 1795 | } |
71be2cbc | 1796 | else |
1797 | targ = LvTARG(sv); | |
3280af22 | 1798 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1799 | return 0; |
1800 | } | |
1801 | ||
1802 | int | |
864dbfa3 | 1803 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1804 | { |
1805 | if (LvTARGLEN(sv)) | |
68dc0745 | 1806 | vivify_defelem(sv); |
1807 | if (LvTARG(sv)) { | |
5f05dabc | 1808 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1809 | SvSETMAGIC(LvTARG(sv)); |
1810 | } | |
5f05dabc | 1811 | return 0; |
1812 | } | |
1813 | ||
71be2cbc | 1814 | void |
864dbfa3 | 1815 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1816 | { |
74e13ce4 GS |
1817 | MAGIC *mg; |
1818 | SV *value = Nullsv; | |
71be2cbc | 1819 | |
14befaf4 | 1820 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1821 | return; |
68dc0745 | 1822 | if (mg->mg_obj) { |
74e13ce4 | 1823 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1824 | STRLEN n_a; |
6d822dc4 MS |
1825 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1826 | if (he) | |
1827 | value = HeVAL(he); | |
3280af22 | 1828 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1829 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1830 | } |
68dc0745 | 1831 | else { |
1832 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1833 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1834 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1835 | else { | |
1836 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1837 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1838 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1839 | } |
1840 | } | |
3e3baf6d | 1841 | (void)SvREFCNT_inc(value); |
68dc0745 | 1842 | SvREFCNT_dec(LvTARG(sv)); |
1843 | LvTARG(sv) = value; | |
71be2cbc | 1844 | LvTARGLEN(sv) = 0; |
68dc0745 | 1845 | SvREFCNT_dec(mg->mg_obj); |
1846 | mg->mg_obj = Nullsv; | |
1847 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1848 | } |
1849 | ||
1850 | int | |
864dbfa3 | 1851 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1852 | { |
1853 | AV *av = (AV*)mg->mg_obj; | |
1854 | SV **svp = AvARRAY(av); | |
1855 | I32 i = AvFILLp(av); | |
1856 | while (i >= 0) { | |
1857 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1858 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1859 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1860 | /* XXX Should we check that it hasn't changed? */ |
1861 | SvRV(svp[i]) = 0; | |
155aba94 | 1862 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1863 | SvWEAKREF_off(svp[i]); |
1864 | svp[i] = &PL_sv_undef; | |
1865 | } | |
1866 | i--; | |
1867 | } | |
1868 | return 0; | |
1869 | } | |
1870 | ||
1871 | int | |
864dbfa3 | 1872 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1873 | { |
565764a8 | 1874 | mg->mg_len = -1; |
c6496cc7 | 1875 | SvSCREAM_off(sv); |
93a17b20 LW |
1876 | return 0; |
1877 | } | |
1878 | ||
1879 | int | |
864dbfa3 | 1880 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1881 | { |
14befaf4 | 1882 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1883 | SvVALID_off(sv); |
1884 | return 0; | |
1885 | } | |
1886 | ||
1887 | int | |
864dbfa3 | 1888 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1889 | { |
14befaf4 | 1890 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1891 | SvCOMPILED_off(sv); |
1892 | return 0; | |
1893 | } | |
1894 | ||
1895 | int | |
864dbfa3 | 1896 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1897 | { |
1898 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1899 | ||
1900 | if (uf && uf->uf_set) | |
24f81a43 | 1901 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1902 | return 0; |
1903 | } | |
1904 | ||
c277df42 | 1905 | int |
faf82a0b AE |
1906 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
1907 | { | |
1908 | sv_unmagic(sv, PERL_MAGIC_qr); | |
1909 | return 0; | |
1910 | } | |
1911 | ||
1912 | int | |
864dbfa3 | 1913 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1914 | { |
1915 | regexp *re = (regexp *)mg->mg_obj; | |
1916 | ReREFCNT_dec(re); | |
1917 | return 0; | |
1918 | } | |
1919 | ||
7a4c00b4 | 1920 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1921 | int |
864dbfa3 | 1922 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1923 | { |
1924 | /* | |
838b5b74 | 1925 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1926 | * and vanished with a faint plop. |
1927 | */ | |
7a4c00b4 | 1928 | if (mg->mg_ptr) { |
1929 | Safefree(mg->mg_ptr); | |
1930 | mg->mg_ptr = NULL; | |
565764a8 | 1931 | mg->mg_len = -1; |
7a4c00b4 | 1932 | } |
bbce6d69 | 1933 | return 0; |
1934 | } | |
7a4c00b4 | 1935 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1936 | |
7e8c5dac HS |
1937 | /* Just clear the UTF-8 cache data. */ |
1938 | int | |
1939 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
1940 | { | |
1941 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ | |
1942 | mg->mg_ptr = 0; | |
1943 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
1944 | return 0; | |
1945 | } | |
1946 | ||
bbce6d69 | 1947 | int |
864dbfa3 | 1948 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1949 | { |
1950 | register char *s; | |
1951 | I32 i; | |
8990e307 | 1952 | STRLEN len; |
79072805 | 1953 | switch (*mg->mg_ptr) { |
748a9306 | 1954 | case '\001': /* ^A */ |
3280af22 | 1955 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1956 | break; |
49460fe6 | 1957 | case '\003': /* ^C */ |
eb160463 | 1958 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
1959 | break; |
1960 | ||
79072805 | 1961 | case '\004': /* ^D */ |
aea4f609 | 1962 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1963 | DEBUG_x(dump_all()); |
1964 | break; | |
28f23441 | 1965 | case '\005': /* ^E */ |
d0063567 | 1966 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 1967 | #ifdef MACOS_TRADITIONAL |
d0063567 | 1968 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1969 | #else |
cd39f2b6 | 1970 | # ifdef VMS |
d0063567 | 1971 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 1972 | # else |
cd39f2b6 | 1973 | # ifdef WIN32 |
d0063567 | 1974 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 1975 | # else |
9fed8b87 | 1976 | # ifdef OS2 |
d0063567 | 1977 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 1978 | # else |
d0063567 DK |
1979 | /* will anyone ever use this? */ |
1980 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1981 | # endif |
048c1ddf IZ |
1982 | # endif |
1983 | # endif | |
22fae026 | 1984 | #endif |
d0063567 DK |
1985 | } |
1986 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
1987 | if (PL_encoding) | |
1988 | SvREFCNT_dec(PL_encoding); | |
1989 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1990 | PL_encoding = newSVsv(sv); | |
1991 | } | |
1992 | else { | |
1993 | PL_encoding = Nullsv; | |
1994 | } | |
1995 | } | |
1996 | break; | |
79072805 | 1997 | case '\006': /* ^F */ |
3280af22 | 1998 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1999 | break; |
a0d0e21e | 2000 | case '\010': /* ^H */ |
3280af22 | 2001 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2002 | break; |
9d116dd7 | 2003 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2004 | if (PL_inplace) |
2005 | Safefree(PL_inplace); | |
79072805 | 2006 | if (SvOK(sv)) |
2d8e6c8d | 2007 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 2008 | else |
3280af22 | 2009 | PL_inplace = Nullch; |
79072805 | 2010 | break; |
28f23441 | 2011 | case '\017': /* ^O */ |
ac27b0f5 NIS |
2012 | if (*(mg->mg_ptr+1) == '\0') { |
2013 | if (PL_osname) | |
2014 | Safefree(PL_osname); | |
2015 | if (SvOK(sv)) | |
2016 | PL_osname = savepv(SvPV(sv,len)); | |
2017 | else | |
2018 | PL_osname = Nullch; | |
2019 | } | |
2020 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2021 | if (!PL_compiling.cop_io) | |
2022 | PL_compiling.cop_io = newSVsv(sv); | |
2023 | else | |
2024 | sv_setsv(PL_compiling.cop_io,sv); | |
2025 | } | |
28f23441 | 2026 | break; |
79072805 | 2027 | case '\020': /* ^P */ |
3280af22 | 2028 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
2029 | if (PL_perldb && !PL_DBsingle) |
2030 | init_debugger(); | |
79072805 LW |
2031 | break; |
2032 | case '\024': /* ^T */ | |
88e89b8a | 2033 | #ifdef BIG_TIME |
6b88bc9c | 2034 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2035 | #else |
3280af22 | 2036 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2037 | #endif |
79072805 | 2038 | break; |
fde18df1 | 2039 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2040 | if (*(mg->mg_ptr+1) == '\0') { |
2041 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2042 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2043 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2044 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2045 | } |
599cee73 | 2046 | } |
0a378802 | 2047 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2048 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2049 | if (!SvPOK(sv) && PL_localizing) { |
2050 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2051 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2052 | break; |
2053 | } | |
f4fc7782 | 2054 | { |
b5477537 | 2055 | STRLEN len, i; |
d3a7d8c7 | 2056 | int accumulate = 0 ; |
f4fc7782 | 2057 | int any_fatals = 0 ; |
d3a7d8c7 | 2058 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
2059 | for (i = 0 ; i < len ; ++i) { |
2060 | accumulate |= ptr[i] ; | |
2061 | any_fatals |= (ptr[i] & 0xAA) ; | |
2062 | } | |
d3a7d8c7 GS |
2063 | if (!accumulate) |
2064 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2065 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2066 | PL_compiling.cop_warnings = pWARN_ALL; | |
2067 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2068 | } |
d3a7d8c7 GS |
2069 | else { |
2070 | if (specialWARN(PL_compiling.cop_warnings)) | |
2071 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2072 | else | |
2073 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2074 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2075 | PL_dowarn |= G_WARN_ONCE ; | |
2076 | } | |
f4fc7782 | 2077 | |
d3a7d8c7 | 2078 | } |
4438c4b7 | 2079 | } |
971a9dd3 | 2080 | } |
79072805 LW |
2081 | break; |
2082 | case '.': | |
3280af22 NIS |
2083 | if (PL_localizing) { |
2084 | if (PL_localizing == 1) | |
7766f137 | 2085 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2086 | } |
3280af22 | 2087 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2088 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2089 | break; |
2090 | case '^': | |
3280af22 | 2091 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2092 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2093 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2094 | break; |
2095 | case '~': | |
3280af22 | 2096 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2097 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2098 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2099 | break; |
2100 | case '=': | |
632db599 | 2101 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2102 | break; |
2103 | case '-': | |
632db599 | 2104 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2105 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2106 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2107 | break; |
2108 | case '%': | |
632db599 | 2109 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2110 | break; |
2111 | case '|': | |
4b65379b | 2112 | { |
3280af22 | 2113 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2114 | if(!io) |
2115 | break; | |
4b65379b CS |
2116 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2117 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2118 | else { | |
2119 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2120 | PerlIO *ofp = IoOFP(io); | |
2121 | if (ofp) | |
2122 | (void)PerlIO_flush(ofp); | |
2123 | IoFLAGS(io) |= IOf_FLUSH; | |
2124 | } | |
2125 | } | |
79072805 LW |
2126 | } |
2127 | break; | |
2128 | case '*': | |
463ee0b2 | 2129 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 2130 | PL_multiline = (i != 0); |
79072805 LW |
2131 | break; |
2132 | case '/': | |
3280af22 | 2133 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2134 | PL_rs = newSVsv(sv); |
79072805 LW |
2135 | break; |
2136 | case '\\': | |
7889fe52 NIS |
2137 | if (PL_ors_sv) |
2138 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2139 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2140 | PL_ors_sv = newSVsv(sv); |
009c130f | 2141 | } |
e3c19b7b | 2142 | else { |
7889fe52 | 2143 | PL_ors_sv = Nullsv; |
e3c19b7b | 2144 | } |
79072805 LW |
2145 | break; |
2146 | case ',': | |
7889fe52 NIS |
2147 | if (PL_ofs_sv) |
2148 | SvREFCNT_dec(PL_ofs_sv); | |
2149 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2150 | PL_ofs_sv = newSVsv(sv); | |
2151 | } | |
2152 | else { | |
2153 | PL_ofs_sv = Nullsv; | |
2154 | } | |
79072805 LW |
2155 | break; |
2156 | case '#': | |
3280af22 NIS |
2157 | if (PL_ofmt) |
2158 | Safefree(PL_ofmt); | |
2d8e6c8d | 2159 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2160 | break; |
2161 | case '[': | |
3280af22 | 2162 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2163 | break; |
2164 | case '?': | |
ff0cee69 | 2165 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2166 | if (PL_localizing == 2) { |
2167 | PL_statusvalue = LvTARGOFF(sv); | |
2168 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2169 | } |
2170 | else | |
2171 | #endif | |
2172 | #ifdef VMSISH_STATUS | |
2173 | if (VMSISH_STATUS) | |
2174 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2175 | else | |
2176 | #endif | |
2177 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2178 | break; |
2179 | case '!': | |
93189314 JH |
2180 | { |
2181 | #ifdef VMS | |
2182 | # define PERL_VMS_BANG vaxc$errno | |
2183 | #else | |
2184 | # define PERL_VMS_BANG 0 | |
2185 | #endif | |
91487cfc | 2186 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2187 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2188 | } | |
79072805 LW |
2189 | break; |
2190 | case '<': | |
3280af22 NIS |
2191 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2192 | if (PL_delaymagic) { | |
2193 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2194 | break; /* don't do magic till later */ |
2195 | } | |
2196 | #ifdef HAS_SETRUID | |
b28d0864 | 2197 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2198 | #else |
2199 | #ifdef HAS_SETREUID | |
3280af22 | 2200 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2201 | #else |
85e6fe83 | 2202 | #ifdef HAS_SETRESUID |
b28d0864 | 2203 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2204 | #else |
b28d0864 NIS |
2205 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2206 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2207 | else { |
d8eceb89 | 2208 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2209 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2210 | } |
79072805 LW |
2211 | #endif |
2212 | #endif | |
85e6fe83 | 2213 | #endif |
d8eceb89 | 2214 | PL_uid = PerlProc_getuid(); |
3280af22 | 2215 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2216 | break; |
2217 | case '>': | |
3280af22 NIS |
2218 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2219 | if (PL_delaymagic) { | |
2220 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2221 | break; /* don't do magic till later */ |
2222 | } | |
2223 | #ifdef HAS_SETEUID | |
3280af22 | 2224 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2225 | #else |
2226 | #ifdef HAS_SETREUID | |
b28d0864 | 2227 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2228 | #else |
2229 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2230 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2231 | #else |
b28d0864 NIS |
2232 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2233 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2234 | else { |
e8ee3774 | 2235 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2236 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2237 | } |
79072805 LW |
2238 | #endif |
2239 | #endif | |
85e6fe83 | 2240 | #endif |
d8eceb89 | 2241 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2242 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2243 | break; |
2244 | case '(': | |
3280af22 NIS |
2245 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2246 | if (PL_delaymagic) { | |
2247 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2248 | break; /* don't do magic till later */ |
2249 | } | |
2250 | #ifdef HAS_SETRGID | |
b28d0864 | 2251 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2252 | #else |
2253 | #ifdef HAS_SETREGID | |
3280af22 | 2254 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2255 | #else |
2256 | #ifdef HAS_SETRESGID | |
b28d0864 | 2257 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2258 | #else |
b28d0864 NIS |
2259 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2260 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2261 | else { |
d8eceb89 | 2262 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2263 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2264 | } |
79072805 LW |
2265 | #endif |
2266 | #endif | |
85e6fe83 | 2267 | #endif |
d8eceb89 | 2268 | PL_gid = PerlProc_getgid(); |
3280af22 | 2269 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2270 | break; |
2271 | case ')': | |
5cd24f17 | 2272 | #ifdef HAS_SETGROUPS |
2273 | { | |
2d8e6c8d | 2274 | char *p = SvPV(sv, len); |
5cd24f17 | 2275 | Groups_t gary[NGROUPS]; |
2276 | ||
5cd24f17 | 2277 | while (isSPACE(*p)) |
2278 | ++p; | |
2d4389e4 | 2279 | PL_egid = Atol(p); |
5cd24f17 | 2280 | for (i = 0; i < NGROUPS; ++i) { |
2281 | while (*p && !isSPACE(*p)) | |
2282 | ++p; | |
2283 | while (isSPACE(*p)) | |
2284 | ++p; | |
2285 | if (!*p) | |
2286 | break; | |
2d4389e4 | 2287 | gary[i] = Atol(p); |
5cd24f17 | 2288 | } |
8cc95fdb | 2289 | if (i) |
2290 | (void)setgroups(i, gary); | |
5cd24f17 | 2291 | } |
2292 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2293 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2294 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2295 | if (PL_delaymagic) { |
2296 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2297 | break; /* don't do magic till later */ |
2298 | } | |
2299 | #ifdef HAS_SETEGID | |
3280af22 | 2300 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2301 | #else |
2302 | #ifdef HAS_SETREGID | |
b28d0864 | 2303 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2304 | #else |
2305 | #ifdef HAS_SETRESGID | |
b28d0864 | 2306 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2307 | #else |
b28d0864 NIS |
2308 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2309 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2310 | else { |
d8eceb89 | 2311 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2312 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2313 | } |
79072805 LW |
2314 | #endif |
2315 | #endif | |
85e6fe83 | 2316 | #endif |
d8eceb89 | 2317 | PL_egid = PerlProc_getegid(); |
3280af22 | 2318 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2319 | break; |
2320 | case ':': | |
2d8e6c8d | 2321 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2322 | break; |
cd39f2b6 | 2323 | #ifndef MACOS_TRADITIONAL |
79072805 | 2324 | case '0': |
e2975953 | 2325 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2326 | #ifdef HAS_SETPROCTITLE |
2327 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2328 | * show a string from the process struct and provide | |
2329 | * the setproctitle() routine to manipulate that. */ | |
2330 | { | |
2331 | s = SvPV(sv, len); | |
98b76f99 | 2332 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2333 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2334 | * but not the "(perl) suffix from the ps(1) |
2335 | * output, because that's what ps(1) shows if the | |
2336 | * argv[] is modified. */ | |
6f2ad931 | 2337 | setproctitle("-%s", s); |
9aad2c0e | 2338 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2339 | /* This doesn't really work if you assume that |
2340 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2341 | * because in ps(1) output the result will be like | |
2342 | * sprintf("perl: %s (perl)", s) | |
2343 | * I guess this is a security feature: | |
2344 | * one (a user process) cannot get rid of the original name. | |
2345 | * --jhi */ | |
2346 | setproctitle("%s", s); | |
2347 | # endif | |
2348 | } | |
2349 | #endif | |
17aa7f3d JH |
2350 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2351 | { | |
2352 | union pstun un; | |
2353 | s = SvPV(sv, len); | |
2354 | un.pst_command = s; | |
2355 | pstat(PSTAT_SETCMD, un, len, 0, 0); | |
2356 | } | |
2357 | #endif | |
3280af22 NIS |
2358 | if (!PL_origalen) { |
2359 | s = PL_origargv[0]; | |
79072805 LW |
2360 | s += strlen(s); |
2361 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2362 | for (i = 1; i < PL_origargc; i++) { |
2363 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2364 | #ifdef OS2 |
6b88bc9c | 2365 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2366 | #endif |
fb73857a | 2367 | ) |
379c4362 GS |
2368 | { |
2369 | ++s; | |
2370 | s += strlen(s); /* this one is ok too */ | |
2371 | } | |
fb73857a | 2372 | else |
2373 | break; | |
79072805 | 2374 | } |
bbce6d69 | 2375 | /* can grab env area too? */ |
4efc5df6 GS |
2376 | if (PL_origenviron |
2377 | #ifdef USE_ITHREADS | |
2378 | && PL_curinterp == aTHX | |
2379 | #endif | |
2380 | && (PL_origenviron[0] == s + 1)) | |
2381 | { | |
66b1d557 | 2382 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2383 | /* force copy of environment */ |
3280af22 | 2384 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2385 | if (PL_origenviron[i] == s + 1) { |
2386 | ++s; | |
2387 | s += strlen(s); | |
2388 | } | |
fb73857a | 2389 | else |
2390 | break; | |
79072805 | 2391 | } |
3280af22 | 2392 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2393 | } |
a0d0e21e | 2394 | s = SvPV_force(sv,len); |
8990e307 | 2395 | i = len; |
eb160463 | 2396 | if (i >= (I32)PL_origalen) { |
3280af22 | 2397 | i = PL_origalen; |
fb73857a | 2398 | /* don't allow system to limit $0 seen by script */ |
2399 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2400 | Copy(s, PL_origargv[0], i, char); |
2401 | s = PL_origargv[0]+i; | |
fb73857a | 2402 | *s = '\0'; |
79072805 LW |
2403 | } |
2404 | else { | |
3280af22 NIS |
2405 | Copy(s, PL_origargv[0], i, char); |
2406 | s = PL_origargv[0]+i; | |
79072805 | 2407 | *s++ = '\0'; |
eb160463 | 2408 | while (++i < (I32)PL_origalen) |
f1c3b2ef | 2409 | *s++ = '\0'; |
3280af22 NIS |
2410 | for (i = 1; i < PL_origargc; i++) |
2411 | PL_origargv[i] = Nullch; | |
79072805 | 2412 | } |
e2975953 | 2413 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2414 | break; |
cd39f2b6 | 2415 | #endif |
79072805 LW |
2416 | } |
2417 | return 0; | |
2418 | } | |
2419 | ||
2420 | I32 | |
864dbfa3 | 2421 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2422 | { |
2423 | register char **sigv; | |
2424 | ||
22c35a8c | 2425 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2426 | if (strEQ(sig,*sigv)) |
22c35a8c | 2427 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2428 | #ifdef SIGCLD |
2429 | if (strEQ(sig,"CHLD")) | |
2430 | return SIGCLD; | |
2431 | #endif | |
2432 | #ifdef SIGCHLD | |
2433 | if (strEQ(sig,"CLD")) | |
2434 | return SIGCHLD; | |
2435 | #endif | |
2436 | return 0; | |
2437 | } | |
2438 | ||
df3728a2 | 2439 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2440 | static SV* sig_sv; |
df3728a2 | 2441 | #endif |
84902520 | 2442 | |
ecfc5424 | 2443 | Signal_t |
cea2e8a9 | 2444 | Perl_sighandler(int sig) |
79072805 | 2445 | { |
1018e26f NIS |
2446 | #ifdef PERL_GET_SIG_CONTEXT |
2447 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2448 | #else |
cea2e8a9 | 2449 | dTHX; |
71d280e3 | 2450 | #endif |
79072805 | 2451 | dSP; |
00d579c5 | 2452 | GV *gv = Nullgv; |
a0d0e21e | 2453 | HV *st; |
b7953727 | 2454 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2455 | CV *cv = Nullcv; |
533c011a | 2456 | OP *myop = PL_op; |
84902520 | 2457 | U32 flags = 0; |
3280af22 | 2458 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2459 | |
3280af22 | 2460 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2461 | flags |= 1; |
3280af22 | 2462 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2463 | flags |= 4; |
3280af22 | 2464 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2465 | flags |= 8; |
3280af22 | 2466 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2467 | flags |= 16; |
2468 | ||
727405f8 | 2469 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2470 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2471 | PL_sig_name[sig]); |
2472 | exit(sig); | |
2473 | } | |
ff0cee69 | 2474 | |
84902520 TB |
2475 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2476 | infinity, so we fix 4 (in fact 5): */ | |
2477 | if (flags & 1) { | |
3280af22 | 2478 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2479 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2480 | } |
ac27b0f5 | 2481 | if (flags & 4) |
3280af22 | 2482 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2483 | if (flags & 8) { |
3280af22 NIS |
2484 | PL_retstack_ix++; |
2485 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2486 | } |
2487 | if (flags & 16) | |
3280af22 | 2488 | PL_scopestack_ix += 1; |
84902520 | 2489 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2490 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2491 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2492 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2493 | |
a0d0e21e | 2494 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2495 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2496 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2497 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2498 | : ((cv && CvGV(cv)) |
2499 | ? GvENAME(CvGV(cv)) | |
2500 | : "__ANON__"))); | |
2501 | goto cleanup; | |
79072805 LW |
2502 | } |
2503 | ||
22c35a8c GS |
2504 | if(PL_psig_name[sig]) { |
2505 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2506 | flags |= 64; |
df3728a2 | 2507 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2508 | sig_sv = sv; |
df3728a2 | 2509 | #endif |
84902520 | 2510 | } else { |
ff0cee69 | 2511 | sv = sv_newmortal(); |
22c35a8c | 2512 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2513 | } |
e336de0d | 2514 | |
e788e7d3 | 2515 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2516 | PUSHMARK(SP); |
79072805 | 2517 | PUSHs(sv); |
79072805 | 2518 | PUTBACK; |
a0d0e21e | 2519 | |
1b266415 | 2520 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2521 | |
d3acc0f7 | 2522 | POPSTACK; |
1b266415 | 2523 | if (SvTRUE(ERRSV)) { |
1d615522 | 2524 | #ifndef PERL_MICRO |
983dbef6 | 2525 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2526 | /* Handler "died", for example to get out of a restart-able read(). |
2527 | * Before we re-do that on its behalf re-enable the signal which was | |
2528 | * blocked by the system when we entered. | |
2529 | */ | |
2530 | sigset_t set; | |
2531 | sigemptyset(&set); | |
2532 | sigaddset(&set,sig); | |
2533 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2534 | #else | |
2535 | /* Not clear if this will work */ | |
2536 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2537 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2538 | #endif |
1d615522 | 2539 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2540 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2541 | } |
00d579c5 | 2542 | cleanup: |
84902520 | 2543 | if (flags & 1) |
3280af22 | 2544 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2545 | if (flags & 4) |
3280af22 | 2546 | PL_markstack_ptr--; |
ac27b0f5 | 2547 | if (flags & 8) |
3280af22 | 2548 | PL_retstack_ix--; |
84902520 | 2549 | if (flags & 16) |
3280af22 | 2550 | PL_scopestack_ix -= 1; |
84902520 TB |
2551 | if (flags & 64) |
2552 | SvREFCNT_dec(sv); | |
533c011a | 2553 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2554 | |
3280af22 NIS |
2555 | PL_Sv = tSv; /* Restore global temporaries. */ |
2556 | PL_Xpv = tXpv; | |
79072805 LW |
2557 | return; |
2558 | } | |
4e35701f NIS |
2559 | |
2560 | ||
51371543 | 2561 | static void |
acfe0abc | 2562 | restore_magic(pTHX_ void *p) |
51371543 | 2563 | { |
48944bdf | 2564 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2565 | SV* sv = mgs->mgs_sv; |
2566 | ||
2567 | if (!sv) | |
2568 | return; | |
2569 | ||
2570 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2571 | { | |
2572 | if (mgs->mgs_flags) | |
2573 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2574 | else | |
2575 | mg_magical(sv); | |
2576 | if (SvGMAGICAL(sv)) | |
2577 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2578 | } | |
2579 | ||
2580 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2581 | ||
2582 | /* If we're still on top of the stack, pop us off. (That condition | |
2583 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2584 | * if it's being called via leave_scope.) | |
2585 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2586 | * may leave alloc gunk on the savestack, and some code | |
2587 | * (e.g. sighandler) doesn't expect that... | |
2588 | */ | |
2589 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2590 | { | |
2591 | I32 popval = SSPOPINT; | |
c76ac1ee | 2592 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2593 | PL_savestack_ix -= 2; |
2594 | popval = SSPOPINT; | |
2595 | assert(popval == SAVEt_ALLOC); | |
2596 | popval = SSPOPINT; | |
2597 | PL_savestack_ix -= popval; | |
2598 | } | |
2599 | ||
2600 | } | |
2601 | ||
2602 | static void | |
acfe0abc | 2603 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2604 | { |
51371543 GS |
2605 | U32 flags = *(U32*)p; |
2606 | ||
2607 | if (flags & 1) | |
2608 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2609 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2610 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2611 | if (flags & 64) |
2612 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2613 | #endif |
51371543 | 2614 | } |
1018e26f NIS |
2615 | |
2616 |