Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
eb1102fc | 3 | * Copyright (c) 1991-2002, 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 | ||
23ada85b | 32 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 33 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 34 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 35 | #endif |
2e34cc90 | 36 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 | 37 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 CL |
38 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
39 | #endif | |
85b332e2 | 40 | |
acfe0abc GS |
41 | static void restore_magic(pTHX_ void *p); |
42 | static void unwind_handler_stack(pTHX_ void *p); | |
51371543 | 43 | |
c07a80fd | 44 | /* |
45 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
46 | */ | |
47 | ||
48 | struct magic_state { | |
49 | SV* mgs_sv; | |
50 | U32 mgs_flags; | |
455ece5e | 51 | I32 mgs_ss_ix; |
c07a80fd | 52 | }; |
455ece5e | 53 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
54 | |
55 | STATIC void | |
8fb26106 | 56 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 57 | { |
455ece5e | 58 | MGS* mgs; |
c07a80fd | 59 | assert(SvMAGICAL(sv)); |
765f542d NC |
60 | #ifdef PERL_COPY_ON_WRITE |
61 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ | |
62 | if (SvIsCOW(sv)) | |
63 | sv_force_normal(sv); | |
64 | #endif | |
c07a80fd | 65 | |
685f876f | 66 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
67 | |
68 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 69 | mgs->mgs_sv = sv; |
70 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 71 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 72 | |
73 | SvMAGICAL_off(sv); | |
74 | SvREADONLY_off(sv); | |
06759ea0 | 75 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 76 | } |
77 | ||
954c1994 GS |
78 | /* |
79 | =for apidoc mg_magical | |
80 | ||
81 | Turns on the magical status of an SV. See C<sv_magic>. | |
82 | ||
83 | =cut | |
84 | */ | |
85 | ||
8990e307 | 86 | void |
864dbfa3 | 87 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
88 | { |
89 | MAGIC* mg; | |
90 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
91 | MGVTBL* vtbl = mg->mg_virtual; | |
92 | if (vtbl) { | |
2b260de0 | 93 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
94 | SvGMAGICAL_on(sv); |
95 | if (vtbl->svt_set) | |
96 | SvSMAGICAL_on(sv); | |
2b260de0 | 97 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
98 | SvRMAGICAL_on(sv); |
99 | } | |
100 | } | |
101 | } | |
102 | ||
954c1994 GS |
103 | /* |
104 | =for apidoc mg_get | |
105 | ||
106 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
107 | ||
108 | =cut | |
109 | */ | |
110 | ||
79072805 | 111 | int |
864dbfa3 | 112 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 113 | { |
ff76feab AMS |
114 | int new = 0; |
115 | MAGIC *newmg, *head, *cur, *mg; | |
116 | I32 mgs_ix = SSNEW(sizeof(MGS)); | |
463ee0b2 | 117 | |
455ece5e | 118 | save_magic(mgs_ix, sv); |
463ee0b2 | 119 | |
ff76feab AMS |
120 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
121 | list of magic. svt_get() may delete the current entry, add new | |
122 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
123 | ||
124 | newmg = cur = head = mg = SvMAGIC(sv); | |
125 | while (mg) { | |
126 | MGVTBL *vtbl = mg->mg_virtual; | |
127 | ||
2b260de0 | 128 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 129 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
ff76feab AMS |
130 | /* Don't restore the flags for this entry if it was deleted. */ |
131 | if (mg->mg_flags & MGf_GSKIP) | |
132 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 133 | } |
ff76feab AMS |
134 | |
135 | mg = mg->mg_moremagic; | |
136 | ||
137 | if (new) { | |
138 | /* Have we finished with the new entries we saw? Start again | |
139 | where we left off (unless there are more new entries). */ | |
140 | if (mg == head) { | |
141 | new = 0; | |
142 | mg = cur; | |
143 | head = newmg; | |
144 | } | |
145 | } | |
146 | ||
147 | /* Were any new entries added? */ | |
148 | if (!new && (newmg = SvMAGIC(sv)) != head) { | |
149 | new = 1; | |
150 | cur = mg; | |
151 | mg = newmg; | |
760ac839 | 152 | } |
79072805 | 153 | } |
463ee0b2 | 154 | |
acfe0abc | 155 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
79072805 LW |
156 | return 0; |
157 | } | |
158 | ||
954c1994 GS |
159 | /* |
160 | =for apidoc mg_set | |
161 | ||
162 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
163 | ||
164 | =cut | |
165 | */ | |
166 | ||
79072805 | 167 | int |
864dbfa3 | 168 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 169 | { |
8fb26106 | 170 | I32 mgs_ix; |
79072805 | 171 | MAGIC* mg; |
463ee0b2 LW |
172 | MAGIC* nextmg; |
173 | ||
455ece5e AD |
174 | mgs_ix = SSNEW(sizeof(MGS)); |
175 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
176 | |
177 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 178 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 179 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
180 | if (mg->mg_flags & MGf_GSKIP) { |
181 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 182 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 183 | } |
2b260de0 | 184 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 185 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 186 | } |
463ee0b2 | 187 | |
acfe0abc | 188 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
189 | return 0; |
190 | } | |
191 | ||
954c1994 GS |
192 | /* |
193 | =for apidoc mg_length | |
194 | ||
195 | Report on the SV's length. See C<sv_magic>. | |
196 | ||
197 | =cut | |
198 | */ | |
199 | ||
79072805 | 200 | U32 |
864dbfa3 | 201 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
202 | { |
203 | MAGIC* mg; | |
463ee0b2 | 204 | STRLEN len; |
463ee0b2 | 205 | |
79072805 LW |
206 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
207 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 208 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 209 | I32 mgs_ix; |
48e43a1c | 210 | |
455ece5e AD |
211 | mgs_ix = SSNEW(sizeof(MGS)); |
212 | save_magic(mgs_ix, sv); | |
a0d0e21e | 213 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 214 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 215 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
216 | return len; |
217 | } | |
218 | } | |
219 | ||
7719e241 | 220 | if (DO_UTF8(sv)) |
5636d518 DB |
221 | { |
222 | U8 *s = (U8*)SvPV(sv, len); | |
223 | len = Perl_utf8_length(aTHX_ s, s + len); | |
224 | } | |
225 | else | |
226 | (void)SvPV(sv, len); | |
463ee0b2 | 227 | return len; |
79072805 LW |
228 | } |
229 | ||
8fb26106 | 230 | I32 |
864dbfa3 | 231 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
232 | { |
233 | MAGIC* mg; | |
234 | I32 len; | |
ac27b0f5 | 235 | |
93965878 NIS |
236 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
237 | MGVTBL* vtbl = mg->mg_virtual; | |
2b260de0 | 238 | if (vtbl && vtbl->svt_len) { |
8fb26106 | 239 | I32 mgs_ix; |
455ece5e AD |
240 | |
241 | mgs_ix = SSNEW(sizeof(MGS)); | |
242 | save_magic(mgs_ix, sv); | |
93965878 | 243 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 244 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 245 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
246 | return len; |
247 | } | |
248 | } | |
249 | ||
250 | switch(SvTYPE(sv)) { | |
251 | case SVt_PVAV: | |
252 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
253 | return len; | |
254 | case SVt_PVHV: | |
255 | /* FIXME */ | |
256 | default: | |
cea2e8a9 | 257 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
258 | break; |
259 | } | |
260 | return 0; | |
261 | } | |
262 | ||
954c1994 GS |
263 | /* |
264 | =for apidoc mg_clear | |
265 | ||
266 | Clear something magical that the SV represents. See C<sv_magic>. | |
267 | ||
268 | =cut | |
269 | */ | |
270 | ||
79072805 | 271 | int |
864dbfa3 | 272 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 273 | { |
8fb26106 | 274 | I32 mgs_ix; |
79072805 | 275 | MAGIC* mg; |
463ee0b2 | 276 | |
455ece5e AD |
277 | mgs_ix = SSNEW(sizeof(MGS)); |
278 | save_magic(mgs_ix, sv); | |
463ee0b2 | 279 | |
79072805 LW |
280 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
281 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e | 282 | /* omit GSKIP -- never set here */ |
727405f8 | 283 | |
2b260de0 | 284 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 285 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 286 | } |
463ee0b2 | 287 | |
acfe0abc | 288 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
289 | return 0; |
290 | } | |
291 | ||
954c1994 GS |
292 | /* |
293 | =for apidoc mg_find | |
294 | ||
295 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
296 | ||
297 | =cut | |
298 | */ | |
299 | ||
93a17b20 | 300 | MAGIC* |
864dbfa3 | 301 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
302 | { |
303 | MAGIC* mg; | |
3f8f4626 DC |
304 | if (!sv) |
305 | return 0; | |
93a17b20 LW |
306 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
307 | if (mg->mg_type == type) | |
308 | return mg; | |
309 | } | |
310 | return 0; | |
311 | } | |
312 | ||
954c1994 GS |
313 | /* |
314 | =for apidoc mg_copy | |
315 | ||
316 | Copies the magic from one SV to another. See C<sv_magic>. | |
317 | ||
318 | =cut | |
319 | */ | |
320 | ||
79072805 | 321 | int |
864dbfa3 | 322 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 323 | { |
463ee0b2 | 324 | int count = 0; |
79072805 | 325 | MAGIC* mg; |
463ee0b2 | 326 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68795e93 NIS |
327 | MGVTBL* vtbl = mg->mg_virtual; |
328 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ | |
329 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
330 | } | |
331 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 332 | sv_magic(nsv, |
14befaf4 DM |
333 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
334 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
335 | ? sv : mg->mg_obj, | |
33c27489 | 336 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 337 | count++; |
79072805 | 338 | } |
79072805 | 339 | } |
463ee0b2 | 340 | return count; |
79072805 LW |
341 | } |
342 | ||
954c1994 GS |
343 | /* |
344 | =for apidoc mg_free | |
345 | ||
346 | Free any magic storage used by the SV. See C<sv_magic>. | |
347 | ||
348 | =cut | |
349 | */ | |
350 | ||
79072805 | 351 | int |
864dbfa3 | 352 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
353 | { |
354 | MAGIC* mg; | |
355 | MAGIC* moremagic; | |
356 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
357 | MGVTBL* vtbl = mg->mg_virtual; | |
358 | moremagic = mg->mg_moremagic; | |
2b260de0 | 359 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 360 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 361 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
7719e241 | 362 | if (mg->mg_len > 0) |
88e89b8a | 363 | Safefree(mg->mg_ptr); |
565764a8 | 364 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 365 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 366 | } |
b881518d JH |
367 | if (mg->mg_flags & MGf_REFCOUNTED) |
368 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
369 | Safefree(mg); |
370 | } | |
371 | SvMAGIC(sv) = 0; | |
372 | return 0; | |
373 | } | |
374 | ||
d460ef45 | 375 | |
79072805 LW |
376 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
377 | #include <signal.h> | |
378 | #endif | |
379 | ||
942e002e | 380 | U32 |
864dbfa3 | 381 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 382 | { |
6cef1e77 | 383 | register REGEXP *rx; |
6cef1e77 | 384 | |
aaa362c4 | 385 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
386 | if (mg->mg_obj) /* @+ */ |
387 | return rx->nparens; | |
388 | else /* @- */ | |
389 | return rx->lastparen; | |
390 | } | |
ac27b0f5 | 391 | |
942e002e | 392 | return (U32)-1; |
6cef1e77 IZ |
393 | } |
394 | ||
395 | int | |
864dbfa3 | 396 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 397 | { |
6cef1e77 | 398 | register I32 paren; |
cf93c79d | 399 | register I32 s; |
6cef1e77 IZ |
400 | register I32 i; |
401 | register REGEXP *rx; | |
cf93c79d | 402 | I32 t; |
6cef1e77 | 403 | |
aaa362c4 | 404 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
6cef1e77 IZ |
405 | paren = mg->mg_len; |
406 | if (paren < 0) | |
407 | return 0; | |
eb160463 | 408 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
409 | (s = rx->startp[paren]) != -1 && |
410 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
411 | { |
412 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 413 | i = t; |
6cef1e77 | 414 | else /* @- */ |
cf93c79d | 415 | i = s; |
727405f8 | 416 | |
53c4c00c | 417 | if (i > 0 && PL_reg_match_utf8) { |
1aa99e6b | 418 | char *b = rx->subbeg; |
0064a8a9 JH |
419 | if (b) |
420 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 421 | } |
0064a8a9 JH |
422 | |
423 | sv_setiv(sv, i); | |
6cef1e77 IZ |
424 | } |
425 | } | |
426 | return 0; | |
427 | } | |
428 | ||
e4b89193 | 429 | int |
a29d06ed MG |
430 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
431 | { | |
a29d06ed | 432 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 GS |
433 | /* NOT REACHED */ |
434 | return 0; | |
a29d06ed MG |
435 | } |
436 | ||
93a17b20 | 437 | U32 |
864dbfa3 | 438 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
439 | { |
440 | register I32 paren; | |
93a17b20 | 441 | register I32 i; |
d9f97599 | 442 | register REGEXP *rx; |
a197cbdd | 443 | I32 s1, t1; |
93a17b20 LW |
444 | |
445 | switch (*mg->mg_ptr) { | |
446 | case '1': case '2': case '3': case '4': | |
447 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 448 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 449 | |
ffc61ed2 | 450 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 451 | getparen: |
eb160463 | 452 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
453 | (s1 = rx->startp[paren]) != -1 && |
454 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 455 | { |
cf93c79d | 456 | i = t1 - s1; |
a197cbdd | 457 | getlen: |
53c4c00c | 458 | if (i > 0 && PL_reg_match_utf8) { |
ffc61ed2 | 459 | char *s = rx->subbeg + s1; |
a197cbdd | 460 | char *send = rx->subbeg + t1; |
ffc61ed2 | 461 | |
6d5fa195 | 462 | i = t1 - s1; |
60425c38 JH |
463 | if (is_utf8_string((U8*)s, i)) |
464 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 465 | } |
ffc61ed2 | 466 | if (i < 0) |
0844c848 | 467 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 468 | return i; |
93a17b20 | 469 | } |
235bddc8 NIS |
470 | else { |
471 | if (ckWARN(WARN_UNINITIALIZED)) | |
472 | report_uninit(); | |
473 | } | |
474 | } | |
475 | else { | |
476 | if (ckWARN(WARN_UNINITIALIZED)) | |
477 | report_uninit(); | |
93a17b20 | 478 | } |
748a9306 | 479 | return 0; |
93a17b20 | 480 | case '+': |
aaa362c4 | 481 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 482 | paren = rx->lastparen; |
13f57bf8 CS |
483 | if (paren) |
484 | goto getparen; | |
93a17b20 | 485 | } |
748a9306 | 486 | return 0; |
a01268b5 JH |
487 | case '\016': /* ^N */ |
488 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
489 | paren = rx->lastcloseparen; | |
490 | if (paren) | |
491 | goto getparen; | |
492 | } | |
493 | return 0; | |
93a17b20 | 494 | case '`': |
aaa362c4 | 495 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
496 | if (rx->startp[0] != -1) { |
497 | i = rx->startp[0]; | |
a197cbdd GS |
498 | if (i > 0) { |
499 | s1 = 0; | |
500 | t1 = i; | |
501 | goto getlen; | |
502 | } | |
93a17b20 | 503 | } |
93a17b20 | 504 | } |
748a9306 | 505 | return 0; |
93a17b20 | 506 | case '\'': |
aaa362c4 | 507 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
508 | if (rx->endp[0] != -1) { |
509 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
510 | if (i > 0) { |
511 | s1 = rx->endp[0]; | |
512 | t1 = rx->sublen; | |
513 | goto getlen; | |
514 | } | |
93a17b20 | 515 | } |
93a17b20 | 516 | } |
748a9306 | 517 | return 0; |
93a17b20 LW |
518 | } |
519 | magic_get(sv,mg); | |
2d8e6c8d GS |
520 | if (!SvPOK(sv) && SvNIOK(sv)) { |
521 | STRLEN n_a; | |
522 | sv_2pv(sv, &n_a); | |
523 | } | |
93a17b20 LW |
524 | if (SvPOK(sv)) |
525 | return SvCUR(sv); | |
526 | return 0; | |
527 | } | |
528 | ||
79072805 | 529 | int |
864dbfa3 | 530 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
531 | { |
532 | register I32 paren; | |
533 | register char *s; | |
534 | register I32 i; | |
d9f97599 | 535 | register REGEXP *rx; |
79072805 LW |
536 | |
537 | switch (*mg->mg_ptr) { | |
748a9306 | 538 | case '\001': /* ^A */ |
3280af22 | 539 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 540 | break; |
49460fe6 NIS |
541 | case '\003': /* ^C */ |
542 | sv_setiv(sv, (IV)PL_minus_c); | |
543 | break; | |
544 | ||
79072805 | 545 | case '\004': /* ^D */ |
aea4f609 | 546 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
d056ab3f | 547 | #if defined(YYDEBUG) && defined(DEBUGGING) |
aea4f609 | 548 | PL_yydebug = DEBUG_p_TEST; |
d056ab3f | 549 | #endif |
79072805 | 550 | break; |
28f23441 | 551 | case '\005': /* ^E */ |
0a378802 | 552 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 553 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
554 | { |
555 | char msg[256]; | |
727405f8 | 556 | |
0a378802 | 557 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 558 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 559 | } |
727405f8 | 560 | #else |
28f23441 | 561 | #ifdef VMS |
0a378802 JH |
562 | { |
563 | # include <descrip.h> | |
564 | # include <starlet.h> | |
565 | char msg[255]; | |
566 | $DESCRIPTOR(msgdsc,msg); | |
567 | sv_setnv(sv,(NV) vaxc$errno); | |
568 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
569 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
570 | else | |
571 | sv_setpv(sv,""); | |
572 | } | |
28f23441 | 573 | #else |
88e89b8a | 574 | #ifdef OS2 |
0a378802 JH |
575 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
576 | sv_setnv(sv, (NV)errno); | |
577 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
578 | } else { | |
579 | if (errno != errno_isOS2) { | |
580 | int tmp = _syserrno(); | |
581 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
582 | Perl_rc = tmp; | |
583 | } | |
584 | sv_setnv(sv, (NV)Perl_rc); | |
585 | sv_setpv(sv, os2error(Perl_rc)); | |
586 | } | |
88e89b8a | 587 | #else |
22fae026 | 588 | #ifdef WIN32 |
0a378802 JH |
589 | { |
590 | DWORD dwErr = GetLastError(); | |
591 | sv_setnv(sv, (NV)dwErr); | |
592 | if (dwErr) | |
593 | { | |
594 | PerlProc_GetOSError(sv, dwErr); | |
595 | } | |
596 | else | |
597 | sv_setpv(sv, ""); | |
598 | SetLastError(dwErr); | |
599 | } | |
22fae026 | 600 | #else |
0a378802 JH |
601 | sv_setnv(sv, (NV)errno); |
602 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
28f23441 | 603 | #endif |
88e89b8a | 604 | #endif |
22fae026 | 605 | #endif |
cd39f2b6 | 606 | #endif |
0a378802 JH |
607 | SvNOK_on(sv); /* what a wonderful hack! */ |
608 | } | |
609 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
610 | sv_setsv(sv, PL_encoding); | |
611 | break; | |
79072805 | 612 | case '\006': /* ^F */ |
3280af22 | 613 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 614 | break; |
a0d0e21e | 615 | case '\010': /* ^H */ |
3280af22 | 616 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 617 | break; |
9d116dd7 | 618 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
619 | if (PL_inplace) |
620 | sv_setpv(sv, PL_inplace); | |
79072805 | 621 | else |
3280af22 | 622 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 623 | break; |
ac27b0f5 NIS |
624 | case '\017': /* ^O & ^OPEN */ |
625 | if (*(mg->mg_ptr+1) == '\0') | |
626 | sv_setpv(sv, PL_osname); | |
627 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
628 | if (!PL_compiling.cop_io) | |
629 | sv_setsv(sv, &PL_sv_undef); | |
630 | else { | |
631 | sv_setsv(sv, PL_compiling.cop_io); | |
632 | } | |
633 | } | |
28f23441 | 634 | break; |
79072805 | 635 | case '\020': /* ^P */ |
3280af22 | 636 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 637 | break; |
fb73857a | 638 | case '\023': /* ^S */ |
d58bf5aa | 639 | { |
3280af22 | 640 | if (PL_lex_state != LEX_NOTPARSING) |
155aba94 | 641 | (void)SvOK_off(sv); |
3280af22 | 642 | else if (PL_in_eval) |
6dc8a9e4 | 643 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
644 | else |
645 | sv_setiv(sv, 0); | |
d58bf5aa | 646 | } |
fb73857a | 647 | break; |
79072805 | 648 | case '\024': /* ^T */ |
7c36658b | 649 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 650 | #ifdef BIG_TIME |
7c36658b | 651 | sv_setnv(sv, PL_basetime); |
88e89b8a | 652 | #else |
7c36658b | 653 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 654 | #endif |
7c36658b MS |
655 | } |
656 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
657 | sv_setiv(sv, PL_tainting); | |
658 | break; | |
46487f74 | 659 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
660 | if (*(mg->mg_ptr+1) == '\0') |
661 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 662 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
663 | if (PL_compiling.cop_warnings == pWARN_NONE || |
664 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
665 | { |
666 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
667 | } | |
d3a7d8c7 | 668 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
4438c4b7 | 669 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
ac27b0f5 | 670 | } |
4438c4b7 JH |
671 | else { |
672 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 673 | } |
d3a7d8c7 | 674 | SvPOK_only(sv); |
4438c4b7 | 675 | } |
0a378802 | 676 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
46487f74 | 677 | sv_setiv(sv, (IV)PL_widesyscalls); |
79072805 LW |
678 | break; |
679 | case '1': case '2': case '3': case '4': | |
680 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 681 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
682 | I32 s1, t1; |
683 | ||
a863c7d1 MB |
684 | /* |
685 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
686 | * XXX Does the new way break anything? | |
687 | */ | |
ffc61ed2 | 688 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 689 | getparen: |
eb160463 | 690 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
691 | (s1 = rx->startp[paren]) != -1 && |
692 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 693 | { |
cf93c79d IZ |
694 | i = t1 - s1; |
695 | s = rx->subbeg + s1; | |
01ec43d0 | 696 | if (!rx->subbeg) |
c2e66d9e GS |
697 | break; |
698 | ||
13f57bf8 | 699 | getrx: |
748a9306 | 700 | if (i >= 0) { |
cf93c79d | 701 | sv_setpvn(sv, s, i); |
a8c7c11a | 702 | if (PL_reg_match_utf8 && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
703 | SvUTF8_on(sv); |
704 | else | |
705 | SvUTF8_off(sv); | |
e9814ee1 HS |
706 | if (PL_tainting) { |
707 | if (RX_MATCH_TAINTED(rx)) { | |
708 | MAGIC* mg = SvMAGIC(sv); | |
709 | MAGIC* mgt; | |
710 | PL_tainted = 1; | |
711 | SvMAGIC(sv) = mg->mg_moremagic; | |
712 | SvTAINT(sv); | |
713 | if ((mgt = SvMAGIC(sv))) { | |
714 | mg->mg_moremagic = mgt; | |
715 | SvMAGIC(sv) = mg; | |
716 | } | |
717 | } else | |
718 | SvTAINTED_off(sv); | |
719 | } | |
748a9306 LW |
720 | break; |
721 | } | |
79072805 | 722 | } |
79072805 | 723 | } |
3280af22 | 724 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
725 | break; |
726 | case '+': | |
aaa362c4 | 727 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 728 | paren = rx->lastparen; |
a0d0e21e LW |
729 | if (paren) |
730 | goto getparen; | |
79072805 | 731 | } |
3280af22 | 732 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 733 | break; |
a01268b5 JH |
734 | case '\016': /* ^N */ |
735 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
736 | paren = rx->lastcloseparen; | |
737 | if (paren) | |
738 | goto getparen; | |
739 | } | |
740 | sv_setsv(sv,&PL_sv_undef); | |
741 | break; | |
79072805 | 742 | case '`': |
aaa362c4 | 743 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
744 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
745 | i = rx->startp[0]; | |
13f57bf8 | 746 | goto getrx; |
79072805 | 747 | } |
79072805 | 748 | } |
3280af22 | 749 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
750 | break; |
751 | case '\'': | |
aaa362c4 | 752 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
753 | if (rx->subbeg && rx->endp[0] != -1) { |
754 | s = rx->subbeg + rx->endp[0]; | |
755 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 756 | goto getrx; |
79072805 | 757 | } |
79072805 | 758 | } |
3280af22 | 759 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
760 | break; |
761 | case '.': | |
762 | #ifndef lint | |
3280af22 | 763 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 764 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
765 | } |
766 | #endif | |
767 | break; | |
768 | case '?': | |
809a5acc | 769 | { |
809a5acc | 770 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 771 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
772 | LvTARGOFF(sv) = PL_statusvalue; |
773 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 774 | #endif |
809a5acc | 775 | } |
79072805 LW |
776 | break; |
777 | case '^': | |
3280af22 | 778 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
779 | if (s) |
780 | sv_setpv(sv,s); | |
781 | else { | |
3280af22 | 782 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
783 | sv_catpv(sv,"_TOP"); |
784 | } | |
785 | break; | |
786 | case '~': | |
3280af22 | 787 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 788 | if (!s) |
3280af22 | 789 | s = GvENAME(PL_defoutgv); |
79072805 LW |
790 | sv_setpv(sv,s); |
791 | break; | |
792 | #ifndef lint | |
793 | case '=': | |
3280af22 | 794 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
795 | break; |
796 | case '-': | |
3280af22 | 797 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
798 | break; |
799 | case '%': | |
3280af22 | 800 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
801 | break; |
802 | #endif | |
803 | case ':': | |
804 | break; | |
805 | case '/': | |
806 | break; | |
807 | case '[': | |
3280af22 | 808 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
809 | break; |
810 | case '|': | |
3280af22 | 811 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
812 | break; |
813 | case ',': | |
79072805 LW |
814 | break; |
815 | case '\\': | |
b2ce0fda JH |
816 | if (PL_ors_sv) |
817 | sv_setpv(sv,SvPVX(PL_ors_sv)); | |
79072805 LW |
818 | break; |
819 | case '#': | |
3280af22 | 820 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
821 | break; |
822 | case '!': | |
a5f75d66 | 823 | #ifdef VMS |
65202027 | 824 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 825 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 826 | #else |
88e89b8a | 827 | { |
828 | int saveerrno = errno; | |
65202027 | 829 | sv_setnv(sv, (NV)errno); |
88e89b8a | 830 | #ifdef OS2 |
ed344e4f IZ |
831 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
832 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 833 | else |
a5f75d66 | 834 | #endif |
2304df62 | 835 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 836 | errno = saveerrno; |
837 | } | |
838 | #endif | |
946ec16e | 839 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
840 | break; |
841 | case '<': | |
3280af22 | 842 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
843 | break; |
844 | case '>': | |
3280af22 | 845 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
846 | break; |
847 | case '(': | |
3280af22 | 848 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 849 | #ifdef HAS_GETGROUPS |
785fb66b | 850 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 851 | #endif |
79072805 LW |
852 | goto add_groups; |
853 | case ')': | |
3280af22 | 854 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 855 | #ifdef HAS_GETGROUPS |
785fb66b | 856 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 857 | #endif |
79072805 | 858 | add_groups: |
79072805 | 859 | #ifdef HAS_GETGROUPS |
79072805 | 860 | { |
a0d0e21e | 861 | Groups_t gary[NGROUPS]; |
79072805 | 862 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 863 | while (--i >= 0) |
785fb66b | 864 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
865 | } |
866 | #endif | |
155aba94 | 867 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
868 | break; |
869 | case '*': | |
870 | break; | |
cd39f2b6 | 871 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
872 | case '0': |
873 | break; | |
cd39f2b6 | 874 | #endif |
79072805 | 875 | } |
a0d0e21e | 876 | return 0; |
79072805 LW |
877 | } |
878 | ||
879 | int | |
864dbfa3 | 880 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
881 | { |
882 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
883 | ||
884 | if (uf && uf->uf_val) | |
24f81a43 | 885 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
886 | return 0; |
887 | } | |
888 | ||
889 | int | |
864dbfa3 | 890 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
891 | { |
892 | register char *s; | |
88e89b8a | 893 | char *ptr; |
5aabfad6 | 894 | STRLEN len, klen; |
1e422769 | 895 | |
a0d0e21e | 896 | s = SvPV(sv,len); |
5aabfad6 | 897 | ptr = MgPV(mg,klen); |
88e89b8a | 898 | my_setenv(ptr, s); |
1e422769 | 899 | |
a0d0e21e LW |
900 | #ifdef DYNAMIC_ENV_FETCH |
901 | /* We just undefd an environment var. Is a replacement */ | |
902 | /* waiting in the wings? */ | |
903 | if (!len) { | |
5aabfad6 | 904 | SV **valp; |
6b88bc9c | 905 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 906 | s = SvPV(*valp, len); |
a0d0e21e LW |
907 | } |
908 | #endif | |
1e422769 | 909 | |
39e571d4 | 910 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
911 | /* And you'll never guess what the dog had */ |
912 | /* in its mouth... */ | |
3280af22 | 913 | if (PL_tainting) { |
1e422769 | 914 | MgTAINTEDDIR_off(mg); |
915 | #ifdef VMS | |
5aabfad6 | 916 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 917 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 918 | Stat_t sbuf; |
1e422769 | 919 | int i = 0, j = 0; |
920 | ||
921 | do { /* DCL$PATH may be a search list */ | |
922 | while (1) { /* as may dev portion of any element */ | |
923 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
924 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
925 | cando_by_name(S_IWUSR,0,elt) ) { | |
926 | MgTAINTEDDIR_on(mg); | |
927 | return 0; | |
928 | } | |
929 | } | |
930 | if ((cp = strchr(elt, ':')) != Nullch) | |
931 | *cp = '\0'; | |
932 | if (my_trnlnm(elt, eltbuf, j++)) | |
933 | elt = eltbuf; | |
934 | else | |
935 | break; | |
936 | } | |
937 | j = 0; | |
938 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
939 | } | |
940 | #endif /* VMS */ | |
5aabfad6 | 941 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 942 | char *strend = s + len; |
463ee0b2 LW |
943 | |
944 | while (s < strend) { | |
96827780 | 945 | char tmpbuf[256]; |
c623ac67 | 946 | Stat_t st; |
5f74f29c | 947 | I32 i; |
96827780 | 948 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 949 | s, strend, ':', &i); |
463ee0b2 | 950 | s++; |
96827780 MB |
951 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
952 | || *tmpbuf != '/' | |
c6ed36e1 | 953 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 954 | MgTAINTEDDIR_on(mg); |
1e422769 | 955 | return 0; |
956 | } | |
463ee0b2 | 957 | } |
79072805 LW |
958 | } |
959 | } | |
39e571d4 | 960 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 961 | |
79072805 LW |
962 | return 0; |
963 | } | |
964 | ||
965 | int | |
864dbfa3 | 966 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 967 | { |
2d8e6c8d GS |
968 | STRLEN n_a; |
969 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
970 | return 0; |
971 | } | |
972 | ||
88e89b8a | 973 | int |
864dbfa3 | 974 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 975 | { |
976 | #if defined(VMS) | |
cea2e8a9 | 977 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 978 | #else |
3280af22 | 979 | if (PL_localizing) { |
fb73857a | 980 | HE* entry; |
2d8e6c8d | 981 | STRLEN n_a; |
fb73857a | 982 | magic_clear_all_env(sv,mg); |
983 | hv_iterinit((HV*)sv); | |
155aba94 | 984 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 985 | I32 keylen; |
986 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 987 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 988 | } |
989 | } | |
990 | #endif | |
991 | return 0; | |
992 | } | |
993 | ||
994 | int | |
864dbfa3 | 995 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 996 | { |
ed79a026 | 997 | #if defined(VMS) || defined(EPOC) |
cea2e8a9 | 998 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 999 | #else |
4efc5df6 | 1000 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1001 | PerlEnv_clearenv(); |
4efc5df6 GS |
1002 | # else |
1003 | # ifdef USE_ENVIRON_ARRAY | |
1004 | # if defined(USE_ITHREADS) | |
1005 | /* only the parent thread can clobber the process environment */ | |
1006 | if (PL_curinterp == aTHX) | |
1007 | # endif | |
1008 | { | |
1009 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
1010 | I32 i; |
1011 | ||
3280af22 | 1012 | if (environ == PL_origenviron) |
f2517201 | 1013 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1014 | else |
1015 | for (i = 0; environ[i]; i++) | |
f2517201 | 1016 | safesysfree(environ[i]); |
4efc5df6 | 1017 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1018 | |
66b1d557 | 1019 | environ[0] = Nullch; |
4efc5df6 GS |
1020 | } |
1021 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 JH |
1022 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
1023 | #endif /* VMS || EPC */ | |
3e3baf6d | 1024 | return 0; |
66b1d557 HM |
1025 | } |
1026 | ||
2e34cc90 CL |
1027 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1028 | static int sig_handlers_initted = 0; | |
1029 | #endif | |
7719e241 | 1030 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1031 | static int sig_ignoring[SIG_SIZE]; /* which signals we are ignoring */ |
1032 | #endif | |
2e34cc90 CL |
1033 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1034 | static int sig_defaulting[SIG_SIZE]; | |
1035 | #endif | |
85b332e2 | 1036 | |
64ca3a65 | 1037 | #ifndef PERL_MICRO |
66b1d557 | 1038 | int |
864dbfa3 | 1039 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1040 | { |
1041 | I32 i; | |
2d8e6c8d | 1042 | STRLEN n_a; |
88e89b8a | 1043 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1044 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1045 | if (i) { |
22c35a8c GS |
1046 | if(PL_psig_ptr[i]) |
1047 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1048 | else { |
85b332e2 | 1049 | Sighandler_t sigstate; |
2e34cc90 | 1050 | sigstate = rsignal_state(i); |
23ada85b | 1051 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1052 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1053 | #endif | |
1054 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1055 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1056 | #endif |
88e89b8a | 1057 | /* cache state so we don't fetch it again */ |
ff68c719 | 1058 | if(sigstate == SIG_IGN) |
88e89b8a | 1059 | sv_setpv(sv,"IGNORE"); |
1060 | else | |
3280af22 | 1061 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1062 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1063 | SvTEMP_off(sv); |
1064 | } | |
1065 | } | |
1066 | return 0; | |
1067 | } | |
1068 | int | |
864dbfa3 | 1069 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1070 | { |
1071 | I32 i; | |
2d8e6c8d | 1072 | STRLEN n_a; |
88e89b8a | 1073 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 1074 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1075 | if (i) { |
22c35a8c GS |
1076 | if(PL_psig_ptr[i]) { |
1077 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1078 | PL_psig_ptr[i]=0; | |
88e89b8a | 1079 | } |
22c35a8c GS |
1080 | if(PL_psig_name[i]) { |
1081 | SvREFCNT_dec(PL_psig_name[i]); | |
1082 | PL_psig_name[i]=0; | |
88e89b8a | 1083 | } |
1084 | } | |
1085 | return 0; | |
1086 | } | |
3d37d572 | 1087 | |
0a8e0eff NIS |
1088 | void |
1089 | Perl_raise_signal(pTHX_ int sig) | |
1090 | { | |
1091 | /* Set a flag to say this signal is pending */ | |
1092 | PL_psig_pend[sig]++; | |
1093 | /* And one to say _a_ signal is pending */ | |
1094 | PL_sig_pending = 1; | |
1095 | } | |
1096 | ||
1097 | Signal_t | |
1098 | Perl_csighandler(int sig) | |
1099 | { | |
1018e26f NIS |
1100 | #ifdef PERL_GET_SIG_CONTEXT |
1101 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1102 | #else | |
85b332e2 CL |
1103 | dTHX; |
1104 | #endif | |
23ada85b | 1105 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1106 | (void) rsignal(sig, &Perl_csighandler); |
1107 | if (sig_ignoring[sig]) return; | |
1108 | #endif | |
2e34cc90 | 1109 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1110 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1111 | #ifdef KILL_BY_SIGPRC |
1112 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1113 | #else | |
1114 | exit(1); | |
1115 | #endif | |
1116 | #endif | |
1117 | ||
0a8e0eff NIS |
1118 | #ifdef PERL_OLD_SIGNALS |
1119 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1120 | (*PL_sighandlerp)(sig); | |
1121 | #else | |
0a8e0eff NIS |
1122 | Perl_raise_signal(aTHX_ sig); |
1123 | #endif | |
1124 | } | |
1125 | ||
2e34cc90 CL |
1126 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1127 | void | |
1128 | Perl_csighandler_init(void) | |
1129 | { | |
1130 | int sig; | |
1131 | if (sig_handlers_initted) return; | |
1132 | ||
1133 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1134 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1135 | dTHX; |
2e34cc90 CL |
1136 | sig_defaulting[sig] = 1; |
1137 | (void) rsignal(sig, &Perl_csighandler); | |
1138 | #endif | |
1139 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1140 | sig_ignoring[sig] = 0; | |
1141 | #endif | |
1142 | } | |
1143 | sig_handlers_initted = 1; | |
1144 | } | |
1145 | #endif | |
1146 | ||
0a8e0eff NIS |
1147 | void |
1148 | Perl_despatch_signals(pTHX) | |
1149 | { | |
1150 | int sig; | |
1151 | PL_sig_pending = 0; | |
1152 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1153 | if (PL_psig_pend[sig]) { | |
1154 | PL_psig_pend[sig] = 0; | |
1155 | (*PL_sighandlerp)(sig); | |
1156 | } | |
1157 | } | |
1158 | } | |
1159 | ||
85e6fe83 | 1160 | int |
864dbfa3 | 1161 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1162 | { |
1163 | register char *s; | |
1164 | I32 i; | |
b7953727 | 1165 | SV** svp = 0; |
e72dc28c | 1166 | STRLEN len; |
a0d0e21e | 1167 | |
e72dc28c | 1168 | s = MgPV(mg,len); |
748a9306 LW |
1169 | if (*s == '_') { |
1170 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1171 | svp = &PL_diehook; |
748a9306 | 1172 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1173 | svp = &PL_warnhook; |
748a9306 | 1174 | else |
cea2e8a9 | 1175 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1176 | i = 0; |
4633a7c4 LW |
1177 | if (*svp) { |
1178 | SvREFCNT_dec(*svp); | |
1179 | *svp = 0; | |
1180 | } | |
748a9306 LW |
1181 | } |
1182 | else { | |
1183 | i = whichsig(s); /* ...no, a brick */ | |
1184 | if (!i) { | |
e476b1b5 | 1185 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1186 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1187 | return 0; |
1188 | } | |
2e34cc90 CL |
1189 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1190 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1191 | #endif | |
23ada85b | 1192 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1193 | sig_ignoring[i] = 0; |
1194 | #endif | |
2e34cc90 CL |
1195 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1196 | sig_defaulting[i] = 0; | |
1197 | #endif | |
22c35a8c GS |
1198 | SvREFCNT_dec(PL_psig_name[i]); |
1199 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1200 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1201 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1202 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1203 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1204 | } |
a0d0e21e | 1205 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1206 | if (i) |
0a8e0eff | 1207 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1208 | else |
1209 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1210 | return 0; |
1211 | } | |
e72dc28c | 1212 | s = SvPV_force(sv,len); |
748a9306 | 1213 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1214 | if (i) { |
23ada85b | 1215 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1216 | sig_ignoring[i] = 1; |
1217 | (void)rsignal(i, &Perl_csighandler); | |
1218 | #else | |
ff68c719 | 1219 | (void)rsignal(i, SIG_IGN); |
85b332e2 CL |
1220 | #endif |
1221 | } else | |
748a9306 LW |
1222 | *svp = 0; |
1223 | } | |
1224 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1225 | if (i) | |
2e34cc90 CL |
1226 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1227 | { | |
1228 | sig_defaulting[i] = 1; | |
1229 | (void)rsignal(i, &Perl_csighandler); | |
1230 | } | |
1231 | #else | |
ff68c719 | 1232 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1233 | #endif |
748a9306 LW |
1234 | else |
1235 | *svp = 0; | |
1236 | } | |
79072805 | 1237 | else { |
5aabfad6 | 1238 | /* |
1239 | * We should warn if HINT_STRICT_REFS, but without | |
1240 | * access to a known hint bit in a known OP, we can't | |
1241 | * tell whether HINT_STRICT_REFS is in force or not. | |
1242 | */ | |
46fc3d4c | 1243 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1244 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1245 | if (i) |
0a8e0eff | 1246 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1247 | else |
1248 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1249 | } |
1250 | return 0; | |
1251 | } | |
64ca3a65 | 1252 | #endif /* !PERL_MICRO */ |
79072805 LW |
1253 | |
1254 | int | |
864dbfa3 | 1255 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1256 | { |
3280af22 | 1257 | PL_sub_generation++; |
463ee0b2 LW |
1258 | return 0; |
1259 | } | |
1260 | ||
1261 | int | |
864dbfa3 | 1262 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1263 | { |
a0d0e21e | 1264 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1265 | PL_amagic_generation++; |
463ee0b2 | 1266 | |
a0d0e21e LW |
1267 | return 0; |
1268 | } | |
463ee0b2 | 1269 | |
946ec16e | 1270 | int |
864dbfa3 | 1271 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1272 | { |
1273 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1274 | I32 i = 0; |
7719e241 | 1275 | |
6ff81951 | 1276 | if (hv) { |
497b47a8 JH |
1277 | (void) hv_iterinit(hv); |
1278 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1279 | i = HvKEYS(hv); | |
1280 | else { | |
1281 | while (hv_iternext(hv)) | |
1282 | i++; | |
1283 | } | |
6ff81951 GS |
1284 | } |
1285 | ||
1286 | sv_setiv(sv, (IV)i); | |
1287 | return 0; | |
1288 | } | |
1289 | ||
1290 | int | |
864dbfa3 | 1291 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1292 | { |
1293 | if (LvTARG(sv)) { | |
1294 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1295 | } |
1296 | return 0; | |
ac27b0f5 | 1297 | } |
946ec16e | 1298 | |
e336de0d | 1299 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1300 | STATIC int |
cea2e8a9 | 1301 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1302 | { |
1303 | dSP; | |
463ee0b2 | 1304 | |
924508f0 GS |
1305 | PUSHMARK(SP); |
1306 | EXTEND(SP, n); | |
33c27489 | 1307 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1308 | if (n > 1) { |
93965878 | 1309 | if (mg->mg_ptr) { |
565764a8 | 1310 | if (mg->mg_len >= 0) |
79cb57f6 | 1311 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1312 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1313 | PUSHs((SV*)mg->mg_ptr); |
1314 | } | |
14befaf4 | 1315 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1316 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1317 | } |
1318 | } | |
1319 | if (n > 2) { | |
1320 | PUSHs(val); | |
88e89b8a | 1321 | } |
463ee0b2 LW |
1322 | PUTBACK; |
1323 | ||
864dbfa3 | 1324 | return call_method(meth, flags); |
946ec16e | 1325 | } |
1326 | ||
76e3520e | 1327 | STATIC int |
cea2e8a9 | 1328 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1329 | { |
1330 | dSP; | |
463ee0b2 | 1331 | |
a0d0e21e LW |
1332 | ENTER; |
1333 | SAVETMPS; | |
e788e7d3 | 1334 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1335 | |
33c27489 | 1336 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1337 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1338 | } |
463ee0b2 | 1339 | |
d3acc0f7 | 1340 | POPSTACK; |
a0d0e21e LW |
1341 | FREETMPS; |
1342 | LEAVE; | |
1343 | return 0; | |
1344 | } | |
463ee0b2 | 1345 | |
a0d0e21e | 1346 | int |
864dbfa3 | 1347 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1348 | { |
1349 | magic_methpack(sv,mg,"FETCH"); | |
1350 | if (mg->mg_ptr) | |
1351 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1352 | return 0; |
1353 | } | |
1354 | ||
1355 | int | |
864dbfa3 | 1356 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1357 | { |
1358 | dSP; | |
a60c0954 | 1359 | ENTER; |
e788e7d3 | 1360 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1361 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1362 | POPSTACK; |
a60c0954 | 1363 | LEAVE; |
463ee0b2 LW |
1364 | return 0; |
1365 | } | |
1366 | ||
1367 | int | |
864dbfa3 | 1368 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1369 | { |
a0d0e21e LW |
1370 | return magic_methpack(sv,mg,"DELETE"); |
1371 | } | |
463ee0b2 | 1372 | |
93965878 NIS |
1373 | |
1374 | U32 | |
864dbfa3 | 1375 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1376 | { |
e336de0d | 1377 | dSP; |
93965878 NIS |
1378 | U32 retval = 0; |
1379 | ||
1380 | ENTER; | |
1381 | SAVETMPS; | |
e788e7d3 | 1382 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1383 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1384 | sv = *PL_stack_sp--; |
a60c0954 | 1385 | retval = (U32) SvIV(sv)-1; |
93965878 | 1386 | } |
d3acc0f7 | 1387 | POPSTACK; |
93965878 NIS |
1388 | FREETMPS; |
1389 | LEAVE; | |
1390 | return retval; | |
1391 | } | |
1392 | ||
cea2e8a9 GS |
1393 | int |
1394 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1395 | { |
1396 | dSP; | |
463ee0b2 | 1397 | |
e336de0d | 1398 | ENTER; |
e788e7d3 | 1399 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1400 | PUSHMARK(SP); |
33c27489 | 1401 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1402 | PUTBACK; |
864dbfa3 | 1403 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1404 | POPSTACK; |
a60c0954 | 1405 | LEAVE; |
463ee0b2 LW |
1406 | return 0; |
1407 | } | |
1408 | ||
1409 | int | |
864dbfa3 | 1410 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1411 | { |
463ee0b2 | 1412 | dSP; |
dff6d3cd | 1413 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1414 | |
1415 | ENTER; | |
a0d0e21e | 1416 | SAVETMPS; |
e788e7d3 | 1417 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1418 | PUSHMARK(SP); |
1419 | EXTEND(SP, 2); | |
33c27489 | 1420 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1421 | if (SvOK(key)) |
1422 | PUSHs(key); | |
1423 | PUTBACK; | |
1424 | ||
864dbfa3 | 1425 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1426 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1427 | |
d3acc0f7 | 1428 | POPSTACK; |
a0d0e21e LW |
1429 | FREETMPS; |
1430 | LEAVE; | |
79072805 LW |
1431 | return 0; |
1432 | } | |
1433 | ||
1434 | int | |
864dbfa3 | 1435 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1436 | { |
1437 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1438 | } |
a0d0e21e LW |
1439 | |
1440 | int | |
864dbfa3 | 1441 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1442 | { |
1443 | OP *o; | |
1444 | I32 i; | |
1445 | GV* gv; | |
1446 | SV** svp; | |
2d8e6c8d | 1447 | STRLEN n_a; |
79072805 | 1448 | |
3280af22 | 1449 | gv = PL_DBline; |
79072805 | 1450 | i = SvTRUE(sv); |
188ea221 | 1451 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1452 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 | 1453 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
eb160463 | 1454 | o->op_private = (U8)i; |
79072805 LW |
1455 | return 0; |
1456 | } | |
1457 | ||
1458 | int | |
864dbfa3 | 1459 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1460 | { |
3280af22 | 1461 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1462 | return 0; |
1463 | } | |
1464 | ||
1465 | int | |
864dbfa3 | 1466 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1467 | { |
3280af22 | 1468 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1469 | return 0; |
1470 | } | |
1471 | ||
1472 | int | |
864dbfa3 | 1473 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1474 | { |
1475 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1476 | |
a0d0e21e | 1477 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1478 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1479 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1480 | I32 i = mg->mg_len; |
7e2040f0 | 1481 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1482 | sv_pos_b2u(lsv, &i); |
1483 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1484 | return 0; |
1485 | } | |
1486 | } | |
1487 | (void)SvOK_off(sv); | |
1488 | return 0; | |
1489 | } | |
1490 | ||
1491 | int | |
864dbfa3 | 1492 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1493 | { |
1494 | SV* lsv = LvTARG(sv); | |
1495 | SSize_t pos; | |
1496 | STRLEN len; | |
c00206c8 | 1497 | STRLEN ulen = 0; |
a0d0e21e LW |
1498 | |
1499 | mg = 0; | |
ac27b0f5 | 1500 | |
a0d0e21e | 1501 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1502 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1503 | if (!mg) { |
1504 | if (!SvOK(sv)) | |
1505 | return 0; | |
14befaf4 DM |
1506 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1507 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1508 | } |
1509 | else if (!SvOK(sv)) { | |
565764a8 | 1510 | mg->mg_len = -1; |
a0d0e21e LW |
1511 | return 0; |
1512 | } | |
1513 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1514 | ||
c485e607 | 1515 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1516 | |
7e2040f0 | 1517 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1518 | ulen = sv_len_utf8(lsv); |
1519 | if (ulen) | |
1520 | len = ulen; | |
a0ed51b3 LW |
1521 | } |
1522 | ||
a0d0e21e LW |
1523 | if (pos < 0) { |
1524 | pos += len; | |
1525 | if (pos < 0) | |
1526 | pos = 0; | |
1527 | } | |
eb160463 | 1528 | else if (pos > (SSize_t)len) |
a0d0e21e | 1529 | pos = len; |
a0ed51b3 LW |
1530 | |
1531 | if (ulen) { | |
1532 | I32 p = pos; | |
1533 | sv_pos_u2b(lsv, &p, 0); | |
1534 | pos = p; | |
1535 | } | |
727405f8 | 1536 | |
565764a8 | 1537 | mg->mg_len = pos; |
71be2cbc | 1538 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1539 | |
79072805 LW |
1540 | return 0; |
1541 | } | |
1542 | ||
1543 | int | |
864dbfa3 | 1544 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1545 | { |
8646b087 | 1546 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1547 | SvFAKE_off(sv); | |
946ec16e | 1548 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1549 | SvFAKE_on(sv); |
1550 | } | |
1551 | else | |
946ec16e | 1552 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1553 | return 0; |
1554 | } | |
1555 | ||
1556 | int | |
864dbfa3 | 1557 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1558 | { |
1559 | register char *s; | |
1560 | GV* gv; | |
2d8e6c8d | 1561 | STRLEN n_a; |
79072805 LW |
1562 | |
1563 | if (!SvOK(sv)) | |
1564 | return 0; | |
2d8e6c8d | 1565 | s = SvPV(sv, n_a); |
79072805 LW |
1566 | if (*s == '*' && s[1]) |
1567 | s++; | |
85e6fe83 | 1568 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1569 | if (sv == (SV*)gv) |
1570 | return 0; | |
1571 | if (GvGP(sv)) | |
88e89b8a | 1572 | gp_free((GV*)sv); |
79072805 | 1573 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1574 | return 0; |
1575 | } | |
1576 | ||
1577 | int | |
864dbfa3 | 1578 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1579 | { |
1580 | STRLEN len; | |
1581 | SV *lsv = LvTARG(sv); | |
1582 | char *tmps = SvPV(lsv,len); | |
1583 | I32 offs = LvTARGOFF(sv); | |
1584 | I32 rem = LvTARGLEN(sv); | |
1585 | ||
9aa983d2 JH |
1586 | if (SvUTF8(lsv)) |
1587 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1588 | if (offs > (I32)len) |
6ff81951 | 1589 | offs = len; |
eb160463 | 1590 | if (rem + offs > (I32)len) |
6ff81951 GS |
1591 | rem = len - offs; |
1592 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1593 | if (SvUTF8(lsv)) |
2ef4b674 | 1594 | SvUTF8_on(sv); |
6ff81951 GS |
1595 | return 0; |
1596 | } | |
1597 | ||
1598 | int | |
864dbfa3 | 1599 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1600 | { |
9aa983d2 JH |
1601 | STRLEN len; |
1602 | char *tmps = SvPV(sv, len); | |
1603 | SV *lsv = LvTARG(sv); | |
1604 | I32 lvoff = LvTARGOFF(sv); | |
1605 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1606 | |
1aa99e6b | 1607 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1608 | sv_utf8_upgrade(lsv); |
1609 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1610 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1611 | SvUTF8_on(lsv); | |
1612 | } | |
9bf12eaf | 1613 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1614 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1615 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1616 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1617 | Safefree(tmps); | |
1aa99e6b IH |
1618 | } |
1619 | else | |
9aa983d2 | 1620 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1621 | |
79072805 LW |
1622 | return 0; |
1623 | } | |
1624 | ||
1625 | int | |
864dbfa3 | 1626 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1627 | { |
565764a8 | 1628 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1629 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1630 | return 0; |
1631 | } | |
1632 | ||
1633 | int | |
864dbfa3 | 1634 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1635 | { |
3280af22 NIS |
1636 | if (PL_localizing) { |
1637 | if (PL_localizing == 1) | |
565764a8 | 1638 | mg->mg_len <<= 1; |
748a9306 | 1639 | else |
565764a8 | 1640 | mg->mg_len >>= 1; |
a0d0e21e | 1641 | } |
3280af22 | 1642 | else if (PL_tainted) |
565764a8 | 1643 | mg->mg_len |= 1; |
748a9306 | 1644 | else |
565764a8 | 1645 | mg->mg_len &= ~1; |
463ee0b2 LW |
1646 | return 0; |
1647 | } | |
1648 | ||
1649 | int | |
864dbfa3 | 1650 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1651 | { |
1652 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1653 | |
1654 | if (!lsv) { | |
155aba94 | 1655 | (void)SvOK_off(sv); |
6ff81951 GS |
1656 | return 0; |
1657 | } | |
6ff81951 | 1658 | |
81e118e0 | 1659 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1660 | return 0; |
1661 | } | |
1662 | ||
1663 | int | |
864dbfa3 | 1664 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1665 | { |
1666 | do_vecset(sv); /* XXX slurp this routine */ | |
1667 | return 0; | |
1668 | } | |
1669 | ||
1670 | int | |
864dbfa3 | 1671 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1672 | { |
71be2cbc | 1673 | SV *targ = Nullsv; |
5f05dabc | 1674 | if (LvTARGLEN(sv)) { |
68dc0745 | 1675 | if (mg->mg_obj) { |
74e13ce4 | 1676 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1677 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1678 | if (he) | |
1679 | targ = HeVAL(he); | |
68dc0745 | 1680 | } |
1681 | else { | |
3c78fafa | 1682 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1683 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1684 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1685 | } | |
3280af22 | 1686 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1687 | /* somebody else defined it for us */ |
1688 | SvREFCNT_dec(LvTARG(sv)); | |
1689 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1690 | LvTARGLEN(sv) = 0; | |
1691 | SvREFCNT_dec(mg->mg_obj); | |
1692 | mg->mg_obj = Nullsv; | |
1693 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1694 | } | |
5f05dabc | 1695 | } |
71be2cbc | 1696 | else |
1697 | targ = LvTARG(sv); | |
3280af22 | 1698 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1699 | return 0; |
1700 | } | |
1701 | ||
1702 | int | |
864dbfa3 | 1703 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1704 | { |
1705 | if (LvTARGLEN(sv)) | |
68dc0745 | 1706 | vivify_defelem(sv); |
1707 | if (LvTARG(sv)) { | |
5f05dabc | 1708 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1709 | SvSETMAGIC(LvTARG(sv)); |
1710 | } | |
5f05dabc | 1711 | return 0; |
1712 | } | |
1713 | ||
71be2cbc | 1714 | void |
864dbfa3 | 1715 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1716 | { |
74e13ce4 GS |
1717 | MAGIC *mg; |
1718 | SV *value = Nullsv; | |
71be2cbc | 1719 | |
14befaf4 | 1720 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1721 | return; |
68dc0745 | 1722 | if (mg->mg_obj) { |
74e13ce4 | 1723 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1724 | STRLEN n_a; |
6d822dc4 MS |
1725 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1726 | if (he) | |
1727 | value = HeVAL(he); | |
3280af22 | 1728 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1729 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1730 | } |
68dc0745 | 1731 | else { |
1732 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1733 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1734 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1735 | else { | |
1736 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1737 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1738 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1739 | } |
1740 | } | |
3e3baf6d | 1741 | (void)SvREFCNT_inc(value); |
68dc0745 | 1742 | SvREFCNT_dec(LvTARG(sv)); |
1743 | LvTARG(sv) = value; | |
71be2cbc | 1744 | LvTARGLEN(sv) = 0; |
68dc0745 | 1745 | SvREFCNT_dec(mg->mg_obj); |
1746 | mg->mg_obj = Nullsv; | |
1747 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1748 | } |
1749 | ||
1750 | int | |
864dbfa3 | 1751 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1752 | { |
1753 | AV *av = (AV*)mg->mg_obj; | |
1754 | SV **svp = AvARRAY(av); | |
1755 | I32 i = AvFILLp(av); | |
1756 | while (i >= 0) { | |
1757 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1758 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1759 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1760 | /* XXX Should we check that it hasn't changed? */ |
1761 | SvRV(svp[i]) = 0; | |
155aba94 | 1762 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1763 | SvWEAKREF_off(svp[i]); |
1764 | svp[i] = &PL_sv_undef; | |
1765 | } | |
1766 | i--; | |
1767 | } | |
1768 | return 0; | |
1769 | } | |
1770 | ||
1771 | int | |
864dbfa3 | 1772 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1773 | { |
565764a8 | 1774 | mg->mg_len = -1; |
c6496cc7 | 1775 | SvSCREAM_off(sv); |
93a17b20 LW |
1776 | return 0; |
1777 | } | |
1778 | ||
1779 | int | |
864dbfa3 | 1780 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1781 | { |
14befaf4 | 1782 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1783 | SvVALID_off(sv); |
1784 | return 0; | |
1785 | } | |
1786 | ||
1787 | int | |
864dbfa3 | 1788 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1789 | { |
14befaf4 | 1790 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1791 | SvCOMPILED_off(sv); |
1792 | return 0; | |
1793 | } | |
1794 | ||
1795 | int | |
864dbfa3 | 1796 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1797 | { |
1798 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1799 | ||
1800 | if (uf && uf->uf_set) | |
24f81a43 | 1801 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1802 | return 0; |
1803 | } | |
1804 | ||
c277df42 | 1805 | int |
864dbfa3 | 1806 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1807 | { |
1808 | regexp *re = (regexp *)mg->mg_obj; | |
1809 | ReREFCNT_dec(re); | |
1810 | return 0; | |
1811 | } | |
1812 | ||
7a4c00b4 | 1813 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1814 | int |
864dbfa3 | 1815 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1816 | { |
1817 | /* | |
838b5b74 | 1818 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1819 | * and vanished with a faint plop. |
1820 | */ | |
7a4c00b4 | 1821 | if (mg->mg_ptr) { |
1822 | Safefree(mg->mg_ptr); | |
1823 | mg->mg_ptr = NULL; | |
565764a8 | 1824 | mg->mg_len = -1; |
7a4c00b4 | 1825 | } |
bbce6d69 | 1826 | return 0; |
1827 | } | |
7a4c00b4 | 1828 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1829 | |
1830 | int | |
864dbfa3 | 1831 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1832 | { |
1833 | register char *s; | |
1834 | I32 i; | |
8990e307 | 1835 | STRLEN len; |
79072805 | 1836 | switch (*mg->mg_ptr) { |
748a9306 | 1837 | case '\001': /* ^A */ |
3280af22 | 1838 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1839 | break; |
49460fe6 | 1840 | case '\003': /* ^C */ |
eb160463 | 1841 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
1842 | break; |
1843 | ||
79072805 | 1844 | case '\004': /* ^D */ |
aea4f609 | 1845 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1846 | DEBUG_x(dump_all()); |
1847 | break; | |
28f23441 | 1848 | case '\005': /* ^E */ |
d0063567 | 1849 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 1850 | #ifdef MACOS_TRADITIONAL |
d0063567 | 1851 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1852 | #else |
cd39f2b6 | 1853 | # ifdef VMS |
d0063567 | 1854 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 1855 | # else |
cd39f2b6 | 1856 | # ifdef WIN32 |
d0063567 | 1857 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 1858 | # else |
9fed8b87 | 1859 | # ifdef OS2 |
d0063567 | 1860 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 1861 | # else |
d0063567 DK |
1862 | /* will anyone ever use this? */ |
1863 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1864 | # endif |
048c1ddf IZ |
1865 | # endif |
1866 | # endif | |
22fae026 | 1867 | #endif |
d0063567 DK |
1868 | } |
1869 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
1870 | if (PL_encoding) | |
1871 | SvREFCNT_dec(PL_encoding); | |
1872 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1873 | PL_encoding = newSVsv(sv); | |
1874 | } | |
1875 | else { | |
1876 | PL_encoding = Nullsv; | |
1877 | } | |
1878 | } | |
1879 | break; | |
79072805 | 1880 | case '\006': /* ^F */ |
3280af22 | 1881 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1882 | break; |
a0d0e21e | 1883 | case '\010': /* ^H */ |
3280af22 | 1884 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1885 | break; |
9d116dd7 | 1886 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1887 | if (PL_inplace) |
1888 | Safefree(PL_inplace); | |
79072805 | 1889 | if (SvOK(sv)) |
2d8e6c8d | 1890 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1891 | else |
3280af22 | 1892 | PL_inplace = Nullch; |
79072805 | 1893 | break; |
28f23441 | 1894 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1895 | if (*(mg->mg_ptr+1) == '\0') { |
1896 | if (PL_osname) | |
1897 | Safefree(PL_osname); | |
1898 | if (SvOK(sv)) | |
1899 | PL_osname = savepv(SvPV(sv,len)); | |
1900 | else | |
1901 | PL_osname = Nullch; | |
1902 | } | |
1903 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1904 | if (!PL_compiling.cop_io) | |
1905 | PL_compiling.cop_io = newSVsv(sv); | |
1906 | else | |
1907 | sv_setsv(PL_compiling.cop_io,sv); | |
1908 | } | |
28f23441 | 1909 | break; |
79072805 | 1910 | case '\020': /* ^P */ |
3280af22 | 1911 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1912 | if (PL_perldb && !PL_DBsingle) |
1913 | init_debugger(); | |
79072805 LW |
1914 | break; |
1915 | case '\024': /* ^T */ | |
88e89b8a | 1916 | #ifdef BIG_TIME |
6b88bc9c | 1917 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1918 | #else |
3280af22 | 1919 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1920 | #endif |
79072805 | 1921 | break; |
46487f74 | 1922 | case '\027': /* ^W & $^WARNING_BITS & ^WIDE_SYSTEM_CALLS */ |
4438c4b7 JH |
1923 | if (*(mg->mg_ptr+1) == '\0') { |
1924 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1925 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1926 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1927 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1928 | } |
599cee73 | 1929 | } |
0a378802 | 1930 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 1931 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1932 | if (!SvPOK(sv) && PL_localizing) { |
1933 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1934 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1935 | break; |
1936 | } | |
f4fc7782 | 1937 | { |
b5477537 | 1938 | STRLEN len, i; |
d3a7d8c7 | 1939 | int accumulate = 0 ; |
f4fc7782 | 1940 | int any_fatals = 0 ; |
d3a7d8c7 | 1941 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1942 | for (i = 0 ; i < len ; ++i) { |
1943 | accumulate |= ptr[i] ; | |
1944 | any_fatals |= (ptr[i] & 0xAA) ; | |
1945 | } | |
d3a7d8c7 GS |
1946 | if (!accumulate) |
1947 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1948 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1949 | PL_compiling.cop_warnings = pWARN_ALL; | |
1950 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 1951 | } |
d3a7d8c7 GS |
1952 | else { |
1953 | if (specialWARN(PL_compiling.cop_warnings)) | |
1954 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1955 | else | |
1956 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1957 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1958 | PL_dowarn |= G_WARN_ONCE ; | |
1959 | } | |
f4fc7782 | 1960 | |
d3a7d8c7 | 1961 | } |
4438c4b7 | 1962 | } |
971a9dd3 | 1963 | } |
0a378802 | 1964 | else if (strEQ(mg->mg_ptr+1, "IDE_SYSTEM_CALLS")) |
8a31060d | 1965 | PL_widesyscalls = (bool)SvTRUE(sv); |
79072805 LW |
1966 | break; |
1967 | case '.': | |
3280af22 NIS |
1968 | if (PL_localizing) { |
1969 | if (PL_localizing == 1) | |
7766f137 | 1970 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1971 | } |
3280af22 | 1972 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 1973 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
1974 | break; |
1975 | case '^': | |
3280af22 | 1976 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1977 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1978 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1979 | break; |
1980 | case '~': | |
3280af22 | 1981 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1982 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1983 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1984 | break; |
1985 | case '=': | |
632db599 | 1986 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1987 | break; |
1988 | case '-': | |
632db599 | 1989 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
1990 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1991 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1992 | break; |
1993 | case '%': | |
632db599 | 1994 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1995 | break; |
1996 | case '|': | |
4b65379b | 1997 | { |
3280af22 | 1998 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
1999 | if(!io) |
2000 | break; | |
4b65379b CS |
2001 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2002 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2003 | else { | |
2004 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2005 | PerlIO *ofp = IoOFP(io); | |
2006 | if (ofp) | |
2007 | (void)PerlIO_flush(ofp); | |
2008 | IoFLAGS(io) |= IOf_FLUSH; | |
2009 | } | |
2010 | } | |
79072805 LW |
2011 | } |
2012 | break; | |
2013 | case '*': | |
463ee0b2 | 2014 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 2015 | PL_multiline = (i != 0); |
79072805 LW |
2016 | break; |
2017 | case '/': | |
3280af22 | 2018 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2019 | PL_rs = newSVsv(sv); |
79072805 LW |
2020 | break; |
2021 | case '\\': | |
7889fe52 NIS |
2022 | if (PL_ors_sv) |
2023 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2024 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2025 | PL_ors_sv = newSVsv(sv); |
009c130f | 2026 | } |
e3c19b7b | 2027 | else { |
7889fe52 | 2028 | PL_ors_sv = Nullsv; |
e3c19b7b | 2029 | } |
79072805 LW |
2030 | break; |
2031 | case ',': | |
7889fe52 NIS |
2032 | if (PL_ofs_sv) |
2033 | SvREFCNT_dec(PL_ofs_sv); | |
2034 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2035 | PL_ofs_sv = newSVsv(sv); | |
2036 | } | |
2037 | else { | |
2038 | PL_ofs_sv = Nullsv; | |
2039 | } | |
79072805 LW |
2040 | break; |
2041 | case '#': | |
3280af22 NIS |
2042 | if (PL_ofmt) |
2043 | Safefree(PL_ofmt); | |
2d8e6c8d | 2044 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2045 | break; |
2046 | case '[': | |
3280af22 | 2047 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2048 | break; |
2049 | case '?': | |
ff0cee69 | 2050 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2051 | if (PL_localizing == 2) { |
2052 | PL_statusvalue = LvTARGOFF(sv); | |
2053 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2054 | } |
2055 | else | |
2056 | #endif | |
2057 | #ifdef VMSISH_STATUS | |
2058 | if (VMSISH_STATUS) | |
2059 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2060 | else | |
2061 | #endif | |
2062 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2063 | break; |
2064 | case '!': | |
93189314 JH |
2065 | { |
2066 | #ifdef VMS | |
2067 | # define PERL_VMS_BANG vaxc$errno | |
2068 | #else | |
2069 | # define PERL_VMS_BANG 0 | |
2070 | #endif | |
91487cfc | 2071 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2072 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2073 | } | |
79072805 LW |
2074 | break; |
2075 | case '<': | |
3280af22 NIS |
2076 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2077 | if (PL_delaymagic) { | |
2078 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2079 | break; /* don't do magic till later */ |
2080 | } | |
2081 | #ifdef HAS_SETRUID | |
b28d0864 | 2082 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2083 | #else |
2084 | #ifdef HAS_SETREUID | |
3280af22 | 2085 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2086 | #else |
85e6fe83 | 2087 | #ifdef HAS_SETRESUID |
b28d0864 | 2088 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2089 | #else |
b28d0864 NIS |
2090 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2091 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2092 | else { |
d8eceb89 | 2093 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2094 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2095 | } |
79072805 LW |
2096 | #endif |
2097 | #endif | |
85e6fe83 | 2098 | #endif |
d8eceb89 | 2099 | PL_uid = PerlProc_getuid(); |
3280af22 | 2100 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2101 | break; |
2102 | case '>': | |
3280af22 NIS |
2103 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2104 | if (PL_delaymagic) { | |
2105 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2106 | break; /* don't do magic till later */ |
2107 | } | |
2108 | #ifdef HAS_SETEUID | |
3280af22 | 2109 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2110 | #else |
2111 | #ifdef HAS_SETREUID | |
b28d0864 | 2112 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2113 | #else |
2114 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2115 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2116 | #else |
b28d0864 NIS |
2117 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2118 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2119 | else { |
e8ee3774 | 2120 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2121 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2122 | } |
79072805 LW |
2123 | #endif |
2124 | #endif | |
85e6fe83 | 2125 | #endif |
d8eceb89 | 2126 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2127 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2128 | break; |
2129 | case '(': | |
3280af22 NIS |
2130 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2131 | if (PL_delaymagic) { | |
2132 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2133 | break; /* don't do magic till later */ |
2134 | } | |
2135 | #ifdef HAS_SETRGID | |
b28d0864 | 2136 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2137 | #else |
2138 | #ifdef HAS_SETREGID | |
3280af22 | 2139 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2140 | #else |
2141 | #ifdef HAS_SETRESGID | |
b28d0864 | 2142 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2143 | #else |
b28d0864 NIS |
2144 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2145 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2146 | else { |
d8eceb89 | 2147 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2148 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2149 | } |
79072805 LW |
2150 | #endif |
2151 | #endif | |
85e6fe83 | 2152 | #endif |
d8eceb89 | 2153 | PL_gid = PerlProc_getgid(); |
3280af22 | 2154 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2155 | break; |
2156 | case ')': | |
5cd24f17 | 2157 | #ifdef HAS_SETGROUPS |
2158 | { | |
2d8e6c8d | 2159 | char *p = SvPV(sv, len); |
5cd24f17 | 2160 | Groups_t gary[NGROUPS]; |
2161 | ||
5cd24f17 | 2162 | while (isSPACE(*p)) |
2163 | ++p; | |
2d4389e4 | 2164 | PL_egid = Atol(p); |
5cd24f17 | 2165 | for (i = 0; i < NGROUPS; ++i) { |
2166 | while (*p && !isSPACE(*p)) | |
2167 | ++p; | |
2168 | while (isSPACE(*p)) | |
2169 | ++p; | |
2170 | if (!*p) | |
2171 | break; | |
2d4389e4 | 2172 | gary[i] = Atol(p); |
5cd24f17 | 2173 | } |
8cc95fdb | 2174 | if (i) |
2175 | (void)setgroups(i, gary); | |
5cd24f17 | 2176 | } |
2177 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2178 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2179 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2180 | if (PL_delaymagic) { |
2181 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2182 | break; /* don't do magic till later */ |
2183 | } | |
2184 | #ifdef HAS_SETEGID | |
3280af22 | 2185 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2186 | #else |
2187 | #ifdef HAS_SETREGID | |
b28d0864 | 2188 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2189 | #else |
2190 | #ifdef HAS_SETRESGID | |
b28d0864 | 2191 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2192 | #else |
b28d0864 NIS |
2193 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2194 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2195 | else { |
d8eceb89 | 2196 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2197 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2198 | } |
79072805 LW |
2199 | #endif |
2200 | #endif | |
85e6fe83 | 2201 | #endif |
d8eceb89 | 2202 | PL_egid = PerlProc_getegid(); |
3280af22 | 2203 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2204 | break; |
2205 | case ':': | |
2d8e6c8d | 2206 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2207 | break; |
cd39f2b6 | 2208 | #ifndef MACOS_TRADITIONAL |
79072805 | 2209 | case '0': |
4bc88a62 PS |
2210 | #ifdef HAS_SETPROCTITLE |
2211 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2212 | * show a string from the process struct and provide | |
2213 | * the setproctitle() routine to manipulate that. */ | |
2214 | { | |
2215 | s = SvPV(sv, len); | |
98b76f99 | 2216 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2217 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2218 | * but not the "(perl) suffix from the ps(1) |
2219 | * output, because that's what ps(1) shows if the | |
2220 | * argv[] is modified. */ | |
6f2ad931 | 2221 | setproctitle("-%s", s); |
9aad2c0e | 2222 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2223 | /* This doesn't really work if you assume that |
2224 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2225 | * because in ps(1) output the result will be like | |
2226 | * sprintf("perl: %s (perl)", s) | |
2227 | * I guess this is a security feature: | |
2228 | * one (a user process) cannot get rid of the original name. | |
2229 | * --jhi */ | |
2230 | setproctitle("%s", s); | |
2231 | # endif | |
2232 | } | |
2233 | #endif | |
3280af22 NIS |
2234 | if (!PL_origalen) { |
2235 | s = PL_origargv[0]; | |
79072805 LW |
2236 | s += strlen(s); |
2237 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2238 | for (i = 1; i < PL_origargc; i++) { |
2239 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2240 | #ifdef OS2 |
6b88bc9c | 2241 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2242 | #endif |
fb73857a | 2243 | ) |
379c4362 GS |
2244 | { |
2245 | ++s; | |
2246 | s += strlen(s); /* this one is ok too */ | |
2247 | } | |
fb73857a | 2248 | else |
2249 | break; | |
79072805 | 2250 | } |
bbce6d69 | 2251 | /* can grab env area too? */ |
4efc5df6 GS |
2252 | if (PL_origenviron |
2253 | #ifdef USE_ITHREADS | |
2254 | && PL_curinterp == aTHX | |
2255 | #endif | |
2256 | && (PL_origenviron[0] == s + 1)) | |
2257 | { | |
66b1d557 | 2258 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2259 | /* force copy of environment */ |
3280af22 | 2260 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2261 | if (PL_origenviron[i] == s + 1) { |
2262 | ++s; | |
2263 | s += strlen(s); | |
2264 | } | |
fb73857a | 2265 | else |
2266 | break; | |
79072805 | 2267 | } |
3280af22 | 2268 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2269 | } |
a0d0e21e | 2270 | s = SvPV_force(sv,len); |
8990e307 | 2271 | i = len; |
eb160463 | 2272 | if (i >= (I32)PL_origalen) { |
3280af22 | 2273 | i = PL_origalen; |
fb73857a | 2274 | /* don't allow system to limit $0 seen by script */ |
2275 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2276 | Copy(s, PL_origargv[0], i, char); |
2277 | s = PL_origargv[0]+i; | |
fb73857a | 2278 | *s = '\0'; |
79072805 LW |
2279 | } |
2280 | else { | |
3280af22 NIS |
2281 | Copy(s, PL_origargv[0], i, char); |
2282 | s = PL_origargv[0]+i; | |
79072805 | 2283 | *s++ = '\0'; |
eb160463 | 2284 | while (++i < (I32)PL_origalen) |
f1c3b2ef | 2285 | *s++ = '\0'; |
3280af22 NIS |
2286 | for (i = 1; i < PL_origargc; i++) |
2287 | PL_origargv[i] = Nullch; | |
79072805 LW |
2288 | } |
2289 | break; | |
cd39f2b6 | 2290 | #endif |
79072805 LW |
2291 | } |
2292 | return 0; | |
2293 | } | |
2294 | ||
2295 | I32 | |
864dbfa3 | 2296 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2297 | { |
2298 | register char **sigv; | |
2299 | ||
22c35a8c | 2300 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2301 | if (strEQ(sig,*sigv)) |
22c35a8c | 2302 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2303 | #ifdef SIGCLD |
2304 | if (strEQ(sig,"CHLD")) | |
2305 | return SIGCLD; | |
2306 | #endif | |
2307 | #ifdef SIGCHLD | |
2308 | if (strEQ(sig,"CLD")) | |
2309 | return SIGCHLD; | |
2310 | #endif | |
2311 | return 0; | |
2312 | } | |
2313 | ||
df3728a2 | 2314 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2315 | static SV* sig_sv; |
df3728a2 | 2316 | #endif |
84902520 | 2317 | |
ecfc5424 | 2318 | Signal_t |
cea2e8a9 | 2319 | Perl_sighandler(int sig) |
79072805 | 2320 | { |
1018e26f NIS |
2321 | #ifdef PERL_GET_SIG_CONTEXT |
2322 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2323 | #else |
cea2e8a9 | 2324 | dTHX; |
71d280e3 | 2325 | #endif |
79072805 | 2326 | dSP; |
00d579c5 | 2327 | GV *gv = Nullgv; |
a0d0e21e | 2328 | HV *st; |
b7953727 | 2329 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2330 | CV *cv = Nullcv; |
533c011a | 2331 | OP *myop = PL_op; |
84902520 | 2332 | U32 flags = 0; |
3280af22 | 2333 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2334 | |
3280af22 | 2335 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2336 | flags |= 1; |
3280af22 | 2337 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2338 | flags |= 4; |
3280af22 | 2339 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2340 | flags |= 8; |
3280af22 | 2341 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2342 | flags |= 16; |
2343 | ||
727405f8 | 2344 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2345 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2346 | PL_sig_name[sig]); |
2347 | exit(sig); | |
2348 | } | |
ff0cee69 | 2349 | |
84902520 TB |
2350 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2351 | infinity, so we fix 4 (in fact 5): */ | |
2352 | if (flags & 1) { | |
3280af22 | 2353 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2354 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2355 | } |
ac27b0f5 | 2356 | if (flags & 4) |
3280af22 | 2357 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2358 | if (flags & 8) { |
3280af22 NIS |
2359 | PL_retstack_ix++; |
2360 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2361 | } |
2362 | if (flags & 16) | |
3280af22 | 2363 | PL_scopestack_ix += 1; |
84902520 | 2364 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2365 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2366 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2367 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2368 | |
a0d0e21e | 2369 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2370 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2371 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2372 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2373 | : ((cv && CvGV(cv)) |
2374 | ? GvENAME(CvGV(cv)) | |
2375 | : "__ANON__"))); | |
2376 | goto cleanup; | |
79072805 LW |
2377 | } |
2378 | ||
22c35a8c GS |
2379 | if(PL_psig_name[sig]) { |
2380 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2381 | flags |= 64; |
df3728a2 | 2382 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2383 | sig_sv = sv; |
df3728a2 | 2384 | #endif |
84902520 | 2385 | } else { |
ff0cee69 | 2386 | sv = sv_newmortal(); |
22c35a8c | 2387 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2388 | } |
e336de0d | 2389 | |
e788e7d3 | 2390 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2391 | PUSHMARK(SP); |
79072805 | 2392 | PUSHs(sv); |
79072805 | 2393 | PUTBACK; |
a0d0e21e | 2394 | |
1b266415 | 2395 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2396 | |
d3acc0f7 | 2397 | POPSTACK; |
1b266415 | 2398 | if (SvTRUE(ERRSV)) { |
1d615522 | 2399 | #ifndef PERL_MICRO |
983dbef6 | 2400 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2401 | /* Handler "died", for example to get out of a restart-able read(). |
2402 | * Before we re-do that on its behalf re-enable the signal which was | |
2403 | * blocked by the system when we entered. | |
2404 | */ | |
2405 | sigset_t set; | |
2406 | sigemptyset(&set); | |
2407 | sigaddset(&set,sig); | |
2408 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2409 | #else | |
2410 | /* Not clear if this will work */ | |
2411 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2412 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2413 | #endif |
1d615522 | 2414 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2415 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2416 | } |
00d579c5 | 2417 | cleanup: |
84902520 | 2418 | if (flags & 1) |
3280af22 | 2419 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2420 | if (flags & 4) |
3280af22 | 2421 | PL_markstack_ptr--; |
ac27b0f5 | 2422 | if (flags & 8) |
3280af22 | 2423 | PL_retstack_ix--; |
84902520 | 2424 | if (flags & 16) |
3280af22 | 2425 | PL_scopestack_ix -= 1; |
84902520 TB |
2426 | if (flags & 64) |
2427 | SvREFCNT_dec(sv); | |
533c011a | 2428 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2429 | |
3280af22 NIS |
2430 | PL_Sv = tSv; /* Restore global temporaries. */ |
2431 | PL_Xpv = tXpv; | |
79072805 LW |
2432 | return; |
2433 | } | |
4e35701f NIS |
2434 | |
2435 | ||
51371543 | 2436 | static void |
acfe0abc | 2437 | restore_magic(pTHX_ void *p) |
51371543 | 2438 | { |
48944bdf | 2439 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2440 | SV* sv = mgs->mgs_sv; |
2441 | ||
2442 | if (!sv) | |
2443 | return; | |
2444 | ||
2445 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2446 | { | |
2447 | if (mgs->mgs_flags) | |
2448 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2449 | else | |
2450 | mg_magical(sv); | |
2451 | if (SvGMAGICAL(sv)) | |
2452 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2453 | } | |
2454 | ||
2455 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2456 | ||
2457 | /* If we're still on top of the stack, pop us off. (That condition | |
2458 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2459 | * if it's being called via leave_scope.) | |
2460 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2461 | * may leave alloc gunk on the savestack, and some code | |
2462 | * (e.g. sighandler) doesn't expect that... | |
2463 | */ | |
2464 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2465 | { | |
2466 | I32 popval = SSPOPINT; | |
c76ac1ee | 2467 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2468 | PL_savestack_ix -= 2; |
2469 | popval = SSPOPINT; | |
2470 | assert(popval == SAVEt_ALLOC); | |
2471 | popval = SSPOPINT; | |
2472 | PL_savestack_ix -= popval; | |
2473 | } | |
2474 | ||
2475 | } | |
2476 | ||
2477 | static void | |
acfe0abc | 2478 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2479 | { |
51371543 GS |
2480 | U32 flags = *(U32*)p; |
2481 | ||
2482 | if (flags & 1) | |
2483 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2484 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2485 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2486 | if (flags & 64) |
2487 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2488 | #endif |
51371543 | 2489 | } |
1018e26f NIS |
2490 | |
2491 |