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 | ||
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 */ |
d58bf5aa | 643 | { |
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 |
66b1d557 | 1046 | int |
864dbfa3 | 1047 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1048 | { |
1049 | I32 i; | |
2d8e6c8d | 1050 | STRLEN n_a; |
88e89b8a | 1051 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1052 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1053 | if (i) { |
22c35a8c GS |
1054 | if(PL_psig_ptr[i]) |
1055 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1056 | else { |
85b332e2 | 1057 | Sighandler_t sigstate; |
2e34cc90 | 1058 | sigstate = rsignal_state(i); |
23ada85b | 1059 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
2e34cc90 CL |
1060 | if (sig_handlers_initted && sig_ignoring[i]) sigstate = SIG_IGN; |
1061 | #endif | |
1062 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
1063 | if (sig_handlers_initted && sig_defaulting[i]) sigstate = SIG_DFL; | |
85b332e2 | 1064 | #endif |
88e89b8a | 1065 | /* cache state so we don't fetch it again */ |
ff68c719 | 1066 | if(sigstate == SIG_IGN) |
88e89b8a | 1067 | sv_setpv(sv,"IGNORE"); |
1068 | else | |
3280af22 | 1069 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1070 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1071 | SvTEMP_off(sv); |
1072 | } | |
1073 | } | |
1074 | return 0; | |
1075 | } | |
1076 | int | |
864dbfa3 | 1077 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1078 | { |
1079 | I32 i; | |
2d8e6c8d | 1080 | STRLEN n_a; |
88e89b8a | 1081 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 1082 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 1083 | if (i) { |
22c35a8c GS |
1084 | if(PL_psig_ptr[i]) { |
1085 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1086 | PL_psig_ptr[i]=0; | |
88e89b8a | 1087 | } |
22c35a8c GS |
1088 | if(PL_psig_name[i]) { |
1089 | SvREFCNT_dec(PL_psig_name[i]); | |
1090 | PL_psig_name[i]=0; | |
88e89b8a | 1091 | } |
1092 | } | |
1093 | return 0; | |
1094 | } | |
3d37d572 | 1095 | |
0a8e0eff NIS |
1096 | void |
1097 | Perl_raise_signal(pTHX_ int sig) | |
1098 | { | |
1099 | /* Set a flag to say this signal is pending */ | |
1100 | PL_psig_pend[sig]++; | |
1101 | /* And one to say _a_ signal is pending */ | |
1102 | PL_sig_pending = 1; | |
1103 | } | |
1104 | ||
1105 | Signal_t | |
1106 | Perl_csighandler(int sig) | |
1107 | { | |
1018e26f NIS |
1108 | #ifdef PERL_GET_SIG_CONTEXT |
1109 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1110 | #else | |
85b332e2 CL |
1111 | dTHX; |
1112 | #endif | |
23ada85b | 1113 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1114 | (void) rsignal(sig, &Perl_csighandler); |
1115 | if (sig_ignoring[sig]) return; | |
1116 | #endif | |
2e34cc90 | 1117 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
7719e241 | 1118 | if (sig_defaulting[sig]) |
2e34cc90 CL |
1119 | #ifdef KILL_BY_SIGPRC |
1120 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1121 | #else | |
1122 | exit(1); | |
1123 | #endif | |
1124 | #endif | |
1125 | ||
0a8e0eff NIS |
1126 | #ifdef PERL_OLD_SIGNALS |
1127 | /* Call the perl level handler now with risk we may be in malloc() etc. */ | |
1128 | (*PL_sighandlerp)(sig); | |
1129 | #else | |
0a8e0eff NIS |
1130 | Perl_raise_signal(aTHX_ sig); |
1131 | #endif | |
1132 | } | |
1133 | ||
2e34cc90 CL |
1134 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1135 | void | |
1136 | Perl_csighandler_init(void) | |
1137 | { | |
1138 | int sig; | |
1139 | if (sig_handlers_initted) return; | |
1140 | ||
1141 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1142 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1143 | dTHX; |
2e34cc90 CL |
1144 | sig_defaulting[sig] = 1; |
1145 | (void) rsignal(sig, &Perl_csighandler); | |
1146 | #endif | |
1147 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
1148 | sig_ignoring[sig] = 0; | |
1149 | #endif | |
1150 | } | |
1151 | sig_handlers_initted = 1; | |
1152 | } | |
1153 | #endif | |
1154 | ||
0a8e0eff NIS |
1155 | void |
1156 | Perl_despatch_signals(pTHX) | |
1157 | { | |
1158 | int sig; | |
1159 | PL_sig_pending = 0; | |
1160 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1161 | if (PL_psig_pend[sig]) { | |
1162 | PL_psig_pend[sig] = 0; | |
1163 | (*PL_sighandlerp)(sig); | |
1164 | } | |
1165 | } | |
1166 | } | |
1167 | ||
85e6fe83 | 1168 | int |
864dbfa3 | 1169 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1170 | { |
1171 | register char *s; | |
1172 | I32 i; | |
b7953727 | 1173 | SV** svp = 0; |
e72dc28c | 1174 | STRLEN len; |
a0d0e21e | 1175 | |
e72dc28c | 1176 | s = MgPV(mg,len); |
748a9306 LW |
1177 | if (*s == '_') { |
1178 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1179 | svp = &PL_diehook; |
748a9306 | 1180 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1181 | svp = &PL_warnhook; |
748a9306 | 1182 | else |
cea2e8a9 | 1183 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1184 | i = 0; |
4633a7c4 LW |
1185 | if (*svp) { |
1186 | SvREFCNT_dec(*svp); | |
1187 | *svp = 0; | |
1188 | } | |
748a9306 LW |
1189 | } |
1190 | else { | |
1191 | i = whichsig(s); /* ...no, a brick */ | |
1192 | if (!i) { | |
e476b1b5 | 1193 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1194 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1195 | return 0; |
1196 | } | |
2e34cc90 CL |
1197 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1198 | if (!sig_handlers_initted) Perl_csighandler_init(); | |
1199 | #endif | |
23ada85b | 1200 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1201 | sig_ignoring[i] = 0; |
1202 | #endif | |
2e34cc90 CL |
1203 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1204 | sig_defaulting[i] = 0; | |
1205 | #endif | |
22c35a8c GS |
1206 | SvREFCNT_dec(PL_psig_name[i]); |
1207 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1208 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1209 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1210 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1211 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1212 | } |
a0d0e21e | 1213 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1214 | if (i) |
0a8e0eff | 1215 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1216 | else |
1217 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1218 | return 0; |
1219 | } | |
e72dc28c | 1220 | s = SvPV_force(sv,len); |
748a9306 | 1221 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1222 | if (i) { |
23ada85b | 1223 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 CL |
1224 | sig_ignoring[i] = 1; |
1225 | (void)rsignal(i, &Perl_csighandler); | |
1226 | #else | |
ff68c719 | 1227 | (void)rsignal(i, SIG_IGN); |
85b332e2 CL |
1228 | #endif |
1229 | } else | |
748a9306 LW |
1230 | *svp = 0; |
1231 | } | |
1232 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1233 | if (i) | |
2e34cc90 CL |
1234 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1235 | { | |
1236 | sig_defaulting[i] = 1; | |
1237 | (void)rsignal(i, &Perl_csighandler); | |
1238 | } | |
1239 | #else | |
ff68c719 | 1240 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1241 | #endif |
748a9306 LW |
1242 | else |
1243 | *svp = 0; | |
1244 | } | |
79072805 | 1245 | else { |
5aabfad6 | 1246 | /* |
1247 | * We should warn if HINT_STRICT_REFS, but without | |
1248 | * access to a known hint bit in a known OP, we can't | |
1249 | * tell whether HINT_STRICT_REFS is in force or not. | |
1250 | */ | |
46fc3d4c | 1251 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1252 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1253 | if (i) |
0a8e0eff | 1254 | (void)rsignal(i, &Perl_csighandler); |
748a9306 LW |
1255 | else |
1256 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1257 | } |
1258 | return 0; | |
1259 | } | |
64ca3a65 | 1260 | #endif /* !PERL_MICRO */ |
79072805 LW |
1261 | |
1262 | int | |
864dbfa3 | 1263 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1264 | { |
3280af22 | 1265 | PL_sub_generation++; |
463ee0b2 LW |
1266 | return 0; |
1267 | } | |
1268 | ||
1269 | int | |
864dbfa3 | 1270 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1271 | { |
a0d0e21e | 1272 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1273 | PL_amagic_generation++; |
463ee0b2 | 1274 | |
a0d0e21e LW |
1275 | return 0; |
1276 | } | |
463ee0b2 | 1277 | |
946ec16e | 1278 | int |
864dbfa3 | 1279 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1280 | { |
1281 | HV *hv = (HV*)LvTARG(sv); | |
6ff81951 | 1282 | I32 i = 0; |
7719e241 | 1283 | |
6ff81951 | 1284 | if (hv) { |
497b47a8 JH |
1285 | (void) hv_iterinit(hv); |
1286 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1287 | i = HvKEYS(hv); | |
1288 | else { | |
1289 | while (hv_iternext(hv)) | |
1290 | i++; | |
1291 | } | |
6ff81951 GS |
1292 | } |
1293 | ||
1294 | sv_setiv(sv, (IV)i); | |
1295 | return 0; | |
1296 | } | |
1297 | ||
1298 | int | |
864dbfa3 | 1299 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1300 | { |
1301 | if (LvTARG(sv)) { | |
1302 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1303 | } |
1304 | return 0; | |
ac27b0f5 | 1305 | } |
946ec16e | 1306 | |
e336de0d | 1307 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1308 | STATIC int |
cea2e8a9 | 1309 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1310 | { |
1311 | dSP; | |
463ee0b2 | 1312 | |
924508f0 GS |
1313 | PUSHMARK(SP); |
1314 | EXTEND(SP, n); | |
33c27489 | 1315 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1316 | if (n > 1) { |
93965878 | 1317 | if (mg->mg_ptr) { |
565764a8 | 1318 | if (mg->mg_len >= 0) |
79cb57f6 | 1319 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1320 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1321 | PUSHs((SV*)mg->mg_ptr); |
1322 | } | |
14befaf4 | 1323 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1324 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1325 | } |
1326 | } | |
1327 | if (n > 2) { | |
1328 | PUSHs(val); | |
88e89b8a | 1329 | } |
463ee0b2 LW |
1330 | PUTBACK; |
1331 | ||
864dbfa3 | 1332 | return call_method(meth, flags); |
946ec16e | 1333 | } |
1334 | ||
76e3520e | 1335 | STATIC int |
cea2e8a9 | 1336 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1337 | { |
1338 | dSP; | |
463ee0b2 | 1339 | |
a0d0e21e LW |
1340 | ENTER; |
1341 | SAVETMPS; | |
e788e7d3 | 1342 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1343 | |
33c27489 | 1344 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1345 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1346 | } |
463ee0b2 | 1347 | |
d3acc0f7 | 1348 | POPSTACK; |
a0d0e21e LW |
1349 | FREETMPS; |
1350 | LEAVE; | |
1351 | return 0; | |
1352 | } | |
463ee0b2 | 1353 | |
a0d0e21e | 1354 | int |
864dbfa3 | 1355 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1356 | { |
1357 | magic_methpack(sv,mg,"FETCH"); | |
1358 | if (mg->mg_ptr) | |
1359 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1360 | return 0; |
1361 | } | |
1362 | ||
1363 | int | |
864dbfa3 | 1364 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1365 | { |
1366 | dSP; | |
a60c0954 | 1367 | ENTER; |
e788e7d3 | 1368 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1369 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1370 | POPSTACK; |
a60c0954 | 1371 | LEAVE; |
463ee0b2 LW |
1372 | return 0; |
1373 | } | |
1374 | ||
1375 | int | |
864dbfa3 | 1376 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1377 | { |
a0d0e21e LW |
1378 | return magic_methpack(sv,mg,"DELETE"); |
1379 | } | |
463ee0b2 | 1380 | |
93965878 NIS |
1381 | |
1382 | U32 | |
864dbfa3 | 1383 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1384 | { |
e336de0d | 1385 | dSP; |
93965878 NIS |
1386 | U32 retval = 0; |
1387 | ||
1388 | ENTER; | |
1389 | SAVETMPS; | |
e788e7d3 | 1390 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1391 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1392 | sv = *PL_stack_sp--; |
a60c0954 | 1393 | retval = (U32) SvIV(sv)-1; |
93965878 | 1394 | } |
d3acc0f7 | 1395 | POPSTACK; |
93965878 NIS |
1396 | FREETMPS; |
1397 | LEAVE; | |
1398 | return retval; | |
1399 | } | |
1400 | ||
cea2e8a9 GS |
1401 | int |
1402 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1403 | { |
1404 | dSP; | |
463ee0b2 | 1405 | |
e336de0d | 1406 | ENTER; |
e788e7d3 | 1407 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1408 | PUSHMARK(SP); |
33c27489 | 1409 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1410 | PUTBACK; |
864dbfa3 | 1411 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1412 | POPSTACK; |
a60c0954 | 1413 | LEAVE; |
463ee0b2 LW |
1414 | return 0; |
1415 | } | |
1416 | ||
1417 | int | |
864dbfa3 | 1418 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1419 | { |
463ee0b2 | 1420 | dSP; |
dff6d3cd | 1421 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1422 | |
1423 | ENTER; | |
a0d0e21e | 1424 | SAVETMPS; |
e788e7d3 | 1425 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1426 | PUSHMARK(SP); |
1427 | EXTEND(SP, 2); | |
33c27489 | 1428 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1429 | if (SvOK(key)) |
1430 | PUSHs(key); | |
1431 | PUTBACK; | |
1432 | ||
864dbfa3 | 1433 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1434 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1435 | |
d3acc0f7 | 1436 | POPSTACK; |
a0d0e21e LW |
1437 | FREETMPS; |
1438 | LEAVE; | |
79072805 LW |
1439 | return 0; |
1440 | } | |
1441 | ||
1442 | int | |
864dbfa3 | 1443 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1444 | { |
1445 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1446 | } |
a0d0e21e LW |
1447 | |
1448 | int | |
864dbfa3 | 1449 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1450 | { |
1451 | OP *o; | |
1452 | I32 i; | |
1453 | GV* gv; | |
1454 | SV** svp; | |
2d8e6c8d | 1455 | STRLEN n_a; |
79072805 | 1456 | |
3280af22 | 1457 | gv = PL_DBline; |
79072805 | 1458 | i = SvTRUE(sv); |
188ea221 | 1459 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1460 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 DM |
1461 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1462 | /* set or clear breakpoint in the relevant control op */ | |
1463 | if (i) | |
1464 | o->op_flags |= OPf_SPECIAL; | |
1465 | else | |
1466 | o->op_flags &= ~OPf_SPECIAL; | |
1467 | } | |
79072805 LW |
1468 | return 0; |
1469 | } | |
1470 | ||
1471 | int | |
864dbfa3 | 1472 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1473 | { |
3280af22 | 1474 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1475 | return 0; |
1476 | } | |
1477 | ||
1478 | int | |
864dbfa3 | 1479 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1480 | { |
3280af22 | 1481 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1482 | return 0; |
1483 | } | |
1484 | ||
1485 | int | |
864dbfa3 | 1486 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1487 | { |
1488 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1489 | |
a0d0e21e | 1490 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1491 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1492 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1493 | I32 i = mg->mg_len; |
7e2040f0 | 1494 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1495 | sv_pos_b2u(lsv, &i); |
1496 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1497 | return 0; |
1498 | } | |
1499 | } | |
1500 | (void)SvOK_off(sv); | |
1501 | return 0; | |
1502 | } | |
1503 | ||
1504 | int | |
864dbfa3 | 1505 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1506 | { |
1507 | SV* lsv = LvTARG(sv); | |
1508 | SSize_t pos; | |
1509 | STRLEN len; | |
c00206c8 | 1510 | STRLEN ulen = 0; |
a0d0e21e LW |
1511 | |
1512 | mg = 0; | |
ac27b0f5 | 1513 | |
a0d0e21e | 1514 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1515 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1516 | if (!mg) { |
1517 | if (!SvOK(sv)) | |
1518 | return 0; | |
14befaf4 DM |
1519 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1520 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1521 | } |
1522 | else if (!SvOK(sv)) { | |
565764a8 | 1523 | mg->mg_len = -1; |
a0d0e21e LW |
1524 | return 0; |
1525 | } | |
1526 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1527 | ||
c485e607 | 1528 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1529 | |
7e2040f0 | 1530 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1531 | ulen = sv_len_utf8(lsv); |
1532 | if (ulen) | |
1533 | len = ulen; | |
a0ed51b3 LW |
1534 | } |
1535 | ||
a0d0e21e LW |
1536 | if (pos < 0) { |
1537 | pos += len; | |
1538 | if (pos < 0) | |
1539 | pos = 0; | |
1540 | } | |
eb160463 | 1541 | else if (pos > (SSize_t)len) |
a0d0e21e | 1542 | pos = len; |
a0ed51b3 LW |
1543 | |
1544 | if (ulen) { | |
1545 | I32 p = pos; | |
1546 | sv_pos_u2b(lsv, &p, 0); | |
1547 | pos = p; | |
1548 | } | |
727405f8 | 1549 | |
565764a8 | 1550 | mg->mg_len = pos; |
71be2cbc | 1551 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1552 | |
79072805 LW |
1553 | return 0; |
1554 | } | |
1555 | ||
1556 | int | |
864dbfa3 | 1557 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1558 | { |
8646b087 | 1559 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1560 | SvFAKE_off(sv); | |
946ec16e | 1561 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1562 | SvFAKE_on(sv); |
1563 | } | |
1564 | else | |
946ec16e | 1565 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1566 | return 0; |
1567 | } | |
1568 | ||
1569 | int | |
864dbfa3 | 1570 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1571 | { |
1572 | register char *s; | |
1573 | GV* gv; | |
2d8e6c8d | 1574 | STRLEN n_a; |
79072805 LW |
1575 | |
1576 | if (!SvOK(sv)) | |
1577 | return 0; | |
2d8e6c8d | 1578 | s = SvPV(sv, n_a); |
79072805 LW |
1579 | if (*s == '*' && s[1]) |
1580 | s++; | |
85e6fe83 | 1581 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1582 | if (sv == (SV*)gv) |
1583 | return 0; | |
1584 | if (GvGP(sv)) | |
88e89b8a | 1585 | gp_free((GV*)sv); |
79072805 | 1586 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1587 | return 0; |
1588 | } | |
1589 | ||
1590 | int | |
864dbfa3 | 1591 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1592 | { |
1593 | STRLEN len; | |
1594 | SV *lsv = LvTARG(sv); | |
1595 | char *tmps = SvPV(lsv,len); | |
1596 | I32 offs = LvTARGOFF(sv); | |
1597 | I32 rem = LvTARGLEN(sv); | |
1598 | ||
9aa983d2 JH |
1599 | if (SvUTF8(lsv)) |
1600 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1601 | if (offs > (I32)len) |
6ff81951 | 1602 | offs = len; |
eb160463 | 1603 | if (rem + offs > (I32)len) |
6ff81951 GS |
1604 | rem = len - offs; |
1605 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1606 | if (SvUTF8(lsv)) |
2ef4b674 | 1607 | SvUTF8_on(sv); |
6ff81951 GS |
1608 | return 0; |
1609 | } | |
1610 | ||
1611 | int | |
864dbfa3 | 1612 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1613 | { |
9aa983d2 JH |
1614 | STRLEN len; |
1615 | char *tmps = SvPV(sv, len); | |
1616 | SV *lsv = LvTARG(sv); | |
1617 | I32 lvoff = LvTARGOFF(sv); | |
1618 | I32 lvlen = LvTARGLEN(sv); | |
075a4a2b | 1619 | |
1aa99e6b | 1620 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1621 | sv_utf8_upgrade(lsv); |
1622 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1623 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1624 | SvUTF8_on(lsv); | |
1625 | } | |
9bf12eaf | 1626 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1627 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
e95af362 | 1628 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1629 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1630 | Safefree(tmps); | |
1aa99e6b IH |
1631 | } |
1632 | else | |
9aa983d2 | 1633 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1aa99e6b | 1634 | |
79072805 LW |
1635 | return 0; |
1636 | } | |
1637 | ||
1638 | int | |
864dbfa3 | 1639 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1640 | { |
565764a8 | 1641 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1642 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1643 | return 0; |
1644 | } | |
1645 | ||
1646 | int | |
864dbfa3 | 1647 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1648 | { |
3280af22 NIS |
1649 | if (PL_localizing) { |
1650 | if (PL_localizing == 1) | |
565764a8 | 1651 | mg->mg_len <<= 1; |
748a9306 | 1652 | else |
565764a8 | 1653 | mg->mg_len >>= 1; |
a0d0e21e | 1654 | } |
3280af22 | 1655 | else if (PL_tainted) |
565764a8 | 1656 | mg->mg_len |= 1; |
748a9306 | 1657 | else |
565764a8 | 1658 | mg->mg_len &= ~1; |
463ee0b2 LW |
1659 | return 0; |
1660 | } | |
1661 | ||
1662 | int | |
864dbfa3 | 1663 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1664 | { |
1665 | SV *lsv = LvTARG(sv); | |
6ff81951 GS |
1666 | |
1667 | if (!lsv) { | |
155aba94 | 1668 | (void)SvOK_off(sv); |
6ff81951 GS |
1669 | return 0; |
1670 | } | |
6ff81951 | 1671 | |
81e118e0 | 1672 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1673 | return 0; |
1674 | } | |
1675 | ||
1676 | int | |
864dbfa3 | 1677 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1678 | { |
1679 | do_vecset(sv); /* XXX slurp this routine */ | |
1680 | return 0; | |
1681 | } | |
1682 | ||
1683 | int | |
864dbfa3 | 1684 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1685 | { |
71be2cbc | 1686 | SV *targ = Nullsv; |
5f05dabc | 1687 | if (LvTARGLEN(sv)) { |
68dc0745 | 1688 | if (mg->mg_obj) { |
74e13ce4 | 1689 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1690 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1691 | if (he) | |
1692 | targ = HeVAL(he); | |
68dc0745 | 1693 | } |
1694 | else { | |
3c78fafa | 1695 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1696 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1697 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1698 | } | |
3280af22 | 1699 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1700 | /* somebody else defined it for us */ |
1701 | SvREFCNT_dec(LvTARG(sv)); | |
1702 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1703 | LvTARGLEN(sv) = 0; | |
1704 | SvREFCNT_dec(mg->mg_obj); | |
1705 | mg->mg_obj = Nullsv; | |
1706 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1707 | } | |
5f05dabc | 1708 | } |
71be2cbc | 1709 | else |
1710 | targ = LvTARG(sv); | |
3280af22 | 1711 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1712 | return 0; |
1713 | } | |
1714 | ||
1715 | int | |
864dbfa3 | 1716 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1717 | { |
1718 | if (LvTARGLEN(sv)) | |
68dc0745 | 1719 | vivify_defelem(sv); |
1720 | if (LvTARG(sv)) { | |
5f05dabc | 1721 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1722 | SvSETMAGIC(LvTARG(sv)); |
1723 | } | |
5f05dabc | 1724 | return 0; |
1725 | } | |
1726 | ||
71be2cbc | 1727 | void |
864dbfa3 | 1728 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1729 | { |
74e13ce4 GS |
1730 | MAGIC *mg; |
1731 | SV *value = Nullsv; | |
71be2cbc | 1732 | |
14befaf4 | 1733 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1734 | return; |
68dc0745 | 1735 | if (mg->mg_obj) { |
74e13ce4 | 1736 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1737 | STRLEN n_a; |
6d822dc4 MS |
1738 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1739 | if (he) | |
1740 | value = HeVAL(he); | |
3280af22 | 1741 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1742 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1743 | } |
68dc0745 | 1744 | else { |
1745 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1746 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1747 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1748 | else { | |
1749 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1750 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1751 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1752 | } |
1753 | } | |
3e3baf6d | 1754 | (void)SvREFCNT_inc(value); |
68dc0745 | 1755 | SvREFCNT_dec(LvTARG(sv)); |
1756 | LvTARG(sv) = value; | |
71be2cbc | 1757 | LvTARGLEN(sv) = 0; |
68dc0745 | 1758 | SvREFCNT_dec(mg->mg_obj); |
1759 | mg->mg_obj = Nullsv; | |
1760 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1761 | } |
1762 | ||
1763 | int | |
864dbfa3 | 1764 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1765 | { |
1766 | AV *av = (AV*)mg->mg_obj; | |
1767 | SV **svp = AvARRAY(av); | |
1768 | I32 i = AvFILLp(av); | |
1769 | while (i >= 0) { | |
1770 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1771 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1772 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1773 | /* XXX Should we check that it hasn't changed? */ |
1774 | SvRV(svp[i]) = 0; | |
155aba94 | 1775 | (void)SvOK_off(svp[i]); |
810b8aa5 GS |
1776 | SvWEAKREF_off(svp[i]); |
1777 | svp[i] = &PL_sv_undef; | |
1778 | } | |
1779 | i--; | |
1780 | } | |
1781 | return 0; | |
1782 | } | |
1783 | ||
1784 | int | |
864dbfa3 | 1785 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1786 | { |
565764a8 | 1787 | mg->mg_len = -1; |
c6496cc7 | 1788 | SvSCREAM_off(sv); |
93a17b20 LW |
1789 | return 0; |
1790 | } | |
1791 | ||
1792 | int | |
864dbfa3 | 1793 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1794 | { |
14befaf4 | 1795 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
1796 | SvVALID_off(sv); |
1797 | return 0; | |
1798 | } | |
1799 | ||
1800 | int | |
864dbfa3 | 1801 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1802 | { |
14befaf4 | 1803 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 1804 | SvCOMPILED_off(sv); |
1805 | return 0; | |
1806 | } | |
1807 | ||
1808 | int | |
864dbfa3 | 1809 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1810 | { |
1811 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1812 | ||
1813 | if (uf && uf->uf_set) | |
24f81a43 | 1814 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
1815 | return 0; |
1816 | } | |
1817 | ||
c277df42 | 1818 | int |
864dbfa3 | 1819 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1820 | { |
1821 | regexp *re = (regexp *)mg->mg_obj; | |
1822 | ReREFCNT_dec(re); | |
1823 | return 0; | |
1824 | } | |
1825 | ||
7a4c00b4 | 1826 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1827 | int |
864dbfa3 | 1828 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1829 | { |
1830 | /* | |
838b5b74 | 1831 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1832 | * and vanished with a faint plop. |
1833 | */ | |
7a4c00b4 | 1834 | if (mg->mg_ptr) { |
1835 | Safefree(mg->mg_ptr); | |
1836 | mg->mg_ptr = NULL; | |
565764a8 | 1837 | mg->mg_len = -1; |
7a4c00b4 | 1838 | } |
bbce6d69 | 1839 | return 0; |
1840 | } | |
7a4c00b4 | 1841 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1842 | |
7e8c5dac HS |
1843 | /* Just clear the UTF-8 cache data. */ |
1844 | int | |
1845 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
1846 | { | |
1847 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ | |
1848 | mg->mg_ptr = 0; | |
1849 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
1850 | return 0; | |
1851 | } | |
1852 | ||
bbce6d69 | 1853 | int |
864dbfa3 | 1854 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1855 | { |
1856 | register char *s; | |
1857 | I32 i; | |
8990e307 | 1858 | STRLEN len; |
79072805 | 1859 | switch (*mg->mg_ptr) { |
748a9306 | 1860 | case '\001': /* ^A */ |
3280af22 | 1861 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1862 | break; |
49460fe6 | 1863 | case '\003': /* ^C */ |
eb160463 | 1864 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
1865 | break; |
1866 | ||
79072805 | 1867 | case '\004': /* ^D */ |
aea4f609 | 1868 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; |
79072805 LW |
1869 | DEBUG_x(dump_all()); |
1870 | break; | |
28f23441 | 1871 | case '\005': /* ^E */ |
d0063567 | 1872 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 1873 | #ifdef MACOS_TRADITIONAL |
d0063567 | 1874 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 1875 | #else |
cd39f2b6 | 1876 | # ifdef VMS |
d0063567 | 1877 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 1878 | # else |
cd39f2b6 | 1879 | # ifdef WIN32 |
d0063567 | 1880 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 1881 | # else |
9fed8b87 | 1882 | # ifdef OS2 |
d0063567 | 1883 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 1884 | # else |
d0063567 DK |
1885 | /* will anyone ever use this? */ |
1886 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 1887 | # endif |
048c1ddf IZ |
1888 | # endif |
1889 | # endif | |
22fae026 | 1890 | #endif |
d0063567 DK |
1891 | } |
1892 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
1893 | if (PL_encoding) | |
1894 | SvREFCNT_dec(PL_encoding); | |
1895 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
1896 | PL_encoding = newSVsv(sv); | |
1897 | } | |
1898 | else { | |
1899 | PL_encoding = Nullsv; | |
1900 | } | |
1901 | } | |
1902 | break; | |
79072805 | 1903 | case '\006': /* ^F */ |
3280af22 | 1904 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1905 | break; |
a0d0e21e | 1906 | case '\010': /* ^H */ |
3280af22 | 1907 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1908 | break; |
9d116dd7 | 1909 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1910 | if (PL_inplace) |
1911 | Safefree(PL_inplace); | |
79072805 | 1912 | if (SvOK(sv)) |
2d8e6c8d | 1913 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1914 | else |
3280af22 | 1915 | PL_inplace = Nullch; |
79072805 | 1916 | break; |
28f23441 | 1917 | case '\017': /* ^O */ |
ac27b0f5 NIS |
1918 | if (*(mg->mg_ptr+1) == '\0') { |
1919 | if (PL_osname) | |
1920 | Safefree(PL_osname); | |
1921 | if (SvOK(sv)) | |
1922 | PL_osname = savepv(SvPV(sv,len)); | |
1923 | else | |
1924 | PL_osname = Nullch; | |
1925 | } | |
1926 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
1927 | if (!PL_compiling.cop_io) | |
1928 | PL_compiling.cop_io = newSVsv(sv); | |
1929 | else | |
1930 | sv_setsv(PL_compiling.cop_io,sv); | |
1931 | } | |
28f23441 | 1932 | break; |
79072805 | 1933 | case '\020': /* ^P */ |
3280af22 | 1934 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1935 | if (PL_perldb && !PL_DBsingle) |
1936 | init_debugger(); | |
79072805 LW |
1937 | break; |
1938 | case '\024': /* ^T */ | |
88e89b8a | 1939 | #ifdef BIG_TIME |
6b88bc9c | 1940 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1941 | #else |
3280af22 | 1942 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1943 | #endif |
79072805 | 1944 | break; |
fde18df1 | 1945 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
1946 | if (*(mg->mg_ptr+1) == '\0') { |
1947 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1948 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 1949 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 1950 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 1951 | } |
599cee73 | 1952 | } |
0a378802 | 1953 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 1954 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
1955 | if (!SvPOK(sv) && PL_localizing) { |
1956 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 1957 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
1958 | break; |
1959 | } | |
f4fc7782 | 1960 | { |
b5477537 | 1961 | STRLEN len, i; |
d3a7d8c7 | 1962 | int accumulate = 0 ; |
f4fc7782 | 1963 | int any_fatals = 0 ; |
d3a7d8c7 | 1964 | char * ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
1965 | for (i = 0 ; i < len ; ++i) { |
1966 | accumulate |= ptr[i] ; | |
1967 | any_fatals |= (ptr[i] & 0xAA) ; | |
1968 | } | |
d3a7d8c7 GS |
1969 | if (!accumulate) |
1970 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
1971 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
1972 | PL_compiling.cop_warnings = pWARN_ALL; | |
1973 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 1974 | } |
d3a7d8c7 GS |
1975 | else { |
1976 | if (specialWARN(PL_compiling.cop_warnings)) | |
1977 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
1978 | else | |
1979 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1980 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1981 | PL_dowarn |= G_WARN_ONCE ; | |
1982 | } | |
f4fc7782 | 1983 | |
d3a7d8c7 | 1984 | } |
4438c4b7 | 1985 | } |
971a9dd3 | 1986 | } |
79072805 LW |
1987 | break; |
1988 | case '.': | |
3280af22 NIS |
1989 | if (PL_localizing) { |
1990 | if (PL_localizing == 1) | |
7766f137 | 1991 | SAVESPTR(PL_last_in_gv); |
748a9306 | 1992 | } |
3280af22 | 1993 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 1994 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
1995 | break; |
1996 | case '^': | |
3280af22 | 1997 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1998 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1999 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2000 | break; |
2001 | case '~': | |
3280af22 | 2002 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 2003 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 2004 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
2005 | break; |
2006 | case '=': | |
632db599 | 2007 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2008 | break; |
2009 | case '-': | |
632db599 | 2010 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2011 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2012 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2013 | break; |
2014 | case '%': | |
632db599 | 2015 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2016 | break; |
2017 | case '|': | |
4b65379b | 2018 | { |
3280af22 | 2019 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2020 | if(!io) |
2021 | break; | |
4b65379b CS |
2022 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2023 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2024 | else { | |
2025 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2026 | PerlIO *ofp = IoOFP(io); | |
2027 | if (ofp) | |
2028 | (void)PerlIO_flush(ofp); | |
2029 | IoFLAGS(io) |= IOf_FLUSH; | |
2030 | } | |
2031 | } | |
79072805 LW |
2032 | } |
2033 | break; | |
2034 | case '*': | |
463ee0b2 | 2035 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 2036 | PL_multiline = (i != 0); |
79072805 LW |
2037 | break; |
2038 | case '/': | |
3280af22 | 2039 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2040 | PL_rs = newSVsv(sv); |
79072805 LW |
2041 | break; |
2042 | case '\\': | |
7889fe52 NIS |
2043 | if (PL_ors_sv) |
2044 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2045 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2046 | PL_ors_sv = newSVsv(sv); |
009c130f | 2047 | } |
e3c19b7b | 2048 | else { |
7889fe52 | 2049 | PL_ors_sv = Nullsv; |
e3c19b7b | 2050 | } |
79072805 LW |
2051 | break; |
2052 | case ',': | |
7889fe52 NIS |
2053 | if (PL_ofs_sv) |
2054 | SvREFCNT_dec(PL_ofs_sv); | |
2055 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2056 | PL_ofs_sv = newSVsv(sv); | |
2057 | } | |
2058 | else { | |
2059 | PL_ofs_sv = Nullsv; | |
2060 | } | |
79072805 LW |
2061 | break; |
2062 | case '#': | |
3280af22 NIS |
2063 | if (PL_ofmt) |
2064 | Safefree(PL_ofmt); | |
2d8e6c8d | 2065 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
2066 | break; |
2067 | case '[': | |
3280af22 | 2068 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2069 | break; |
2070 | case '?': | |
ff0cee69 | 2071 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2072 | if (PL_localizing == 2) { |
2073 | PL_statusvalue = LvTARGOFF(sv); | |
2074 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2075 | } |
2076 | else | |
2077 | #endif | |
2078 | #ifdef VMSISH_STATUS | |
2079 | if (VMSISH_STATUS) | |
2080 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2081 | else | |
2082 | #endif | |
2083 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2084 | break; |
2085 | case '!': | |
93189314 JH |
2086 | { |
2087 | #ifdef VMS | |
2088 | # define PERL_VMS_BANG vaxc$errno | |
2089 | #else | |
2090 | # define PERL_VMS_BANG 0 | |
2091 | #endif | |
91487cfc | 2092 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2093 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2094 | } | |
79072805 LW |
2095 | break; |
2096 | case '<': | |
3280af22 NIS |
2097 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2098 | if (PL_delaymagic) { | |
2099 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2100 | break; /* don't do magic till later */ |
2101 | } | |
2102 | #ifdef HAS_SETRUID | |
b28d0864 | 2103 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2104 | #else |
2105 | #ifdef HAS_SETREUID | |
3280af22 | 2106 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2107 | #else |
85e6fe83 | 2108 | #ifdef HAS_SETRESUID |
b28d0864 | 2109 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2110 | #else |
b28d0864 NIS |
2111 | if (PL_uid == PL_euid) /* special case $< = $> */ |
2112 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 2113 | else { |
d8eceb89 | 2114 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2115 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2116 | } |
79072805 LW |
2117 | #endif |
2118 | #endif | |
85e6fe83 | 2119 | #endif |
d8eceb89 | 2120 | PL_uid = PerlProc_getuid(); |
3280af22 | 2121 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2122 | break; |
2123 | case '>': | |
3280af22 NIS |
2124 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2125 | if (PL_delaymagic) { | |
2126 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2127 | break; /* don't do magic till later */ |
2128 | } | |
2129 | #ifdef HAS_SETEUID | |
3280af22 | 2130 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2131 | #else |
2132 | #ifdef HAS_SETREUID | |
b28d0864 | 2133 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2134 | #else |
2135 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2136 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2137 | #else |
b28d0864 NIS |
2138 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2139 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2140 | else { |
e8ee3774 | 2141 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2142 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2143 | } |
79072805 LW |
2144 | #endif |
2145 | #endif | |
85e6fe83 | 2146 | #endif |
d8eceb89 | 2147 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2148 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2149 | break; |
2150 | case '(': | |
3280af22 NIS |
2151 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2152 | if (PL_delaymagic) { | |
2153 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2154 | break; /* don't do magic till later */ |
2155 | } | |
2156 | #ifdef HAS_SETRGID | |
b28d0864 | 2157 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2158 | #else |
2159 | #ifdef HAS_SETREGID | |
3280af22 | 2160 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2161 | #else |
2162 | #ifdef HAS_SETRESGID | |
b28d0864 | 2163 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2164 | #else |
b28d0864 NIS |
2165 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2166 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2167 | else { |
d8eceb89 | 2168 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2169 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2170 | } |
79072805 LW |
2171 | #endif |
2172 | #endif | |
85e6fe83 | 2173 | #endif |
d8eceb89 | 2174 | PL_gid = PerlProc_getgid(); |
3280af22 | 2175 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2176 | break; |
2177 | case ')': | |
5cd24f17 | 2178 | #ifdef HAS_SETGROUPS |
2179 | { | |
2d8e6c8d | 2180 | char *p = SvPV(sv, len); |
5cd24f17 | 2181 | Groups_t gary[NGROUPS]; |
2182 | ||
5cd24f17 | 2183 | while (isSPACE(*p)) |
2184 | ++p; | |
2d4389e4 | 2185 | PL_egid = Atol(p); |
5cd24f17 | 2186 | for (i = 0; i < NGROUPS; ++i) { |
2187 | while (*p && !isSPACE(*p)) | |
2188 | ++p; | |
2189 | while (isSPACE(*p)) | |
2190 | ++p; | |
2191 | if (!*p) | |
2192 | break; | |
2d4389e4 | 2193 | gary[i] = Atol(p); |
5cd24f17 | 2194 | } |
8cc95fdb | 2195 | if (i) |
2196 | (void)setgroups(i, gary); | |
5cd24f17 | 2197 | } |
2198 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2199 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2200 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2201 | if (PL_delaymagic) { |
2202 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2203 | break; /* don't do magic till later */ |
2204 | } | |
2205 | #ifdef HAS_SETEGID | |
3280af22 | 2206 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2207 | #else |
2208 | #ifdef HAS_SETREGID | |
b28d0864 | 2209 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2210 | #else |
2211 | #ifdef HAS_SETRESGID | |
b28d0864 | 2212 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2213 | #else |
b28d0864 NIS |
2214 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2215 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2216 | else { |
d8eceb89 | 2217 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2218 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2219 | } |
79072805 LW |
2220 | #endif |
2221 | #endif | |
85e6fe83 | 2222 | #endif |
d8eceb89 | 2223 | PL_egid = PerlProc_getegid(); |
3280af22 | 2224 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2225 | break; |
2226 | case ':': | |
2d8e6c8d | 2227 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2228 | break; |
cd39f2b6 | 2229 | #ifndef MACOS_TRADITIONAL |
79072805 | 2230 | case '0': |
e2975953 | 2231 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2232 | #ifdef HAS_SETPROCTITLE |
2233 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2234 | * show a string from the process struct and provide | |
2235 | * the setproctitle() routine to manipulate that. */ | |
2236 | { | |
2237 | s = SvPV(sv, len); | |
98b76f99 | 2238 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2239 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2240 | * but not the "(perl) suffix from the ps(1) |
2241 | * output, because that's what ps(1) shows if the | |
2242 | * argv[] is modified. */ | |
6f2ad931 | 2243 | setproctitle("-%s", s); |
9aad2c0e | 2244 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2245 | /* This doesn't really work if you assume that |
2246 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2247 | * because in ps(1) output the result will be like | |
2248 | * sprintf("perl: %s (perl)", s) | |
2249 | * I guess this is a security feature: | |
2250 | * one (a user process) cannot get rid of the original name. | |
2251 | * --jhi */ | |
2252 | setproctitle("%s", s); | |
2253 | # endif | |
2254 | } | |
2255 | #endif | |
17aa7f3d JH |
2256 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2257 | { | |
2258 | union pstun un; | |
2259 | s = SvPV(sv, len); | |
2260 | un.pst_command = s; | |
2261 | pstat(PSTAT_SETCMD, un, len, 0, 0); | |
2262 | } | |
2263 | #endif | |
3280af22 NIS |
2264 | if (!PL_origalen) { |
2265 | s = PL_origargv[0]; | |
79072805 LW |
2266 | s += strlen(s); |
2267 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
2268 | for (i = 1; i < PL_origargc; i++) { |
2269 | if (PL_origargv[i] == s + 1 | |
fb73857a | 2270 | #ifdef OS2 |
6b88bc9c | 2271 | || PL_origargv[i] == s + 2 |
ac27b0f5 | 2272 | #endif |
fb73857a | 2273 | ) |
379c4362 GS |
2274 | { |
2275 | ++s; | |
2276 | s += strlen(s); /* this one is ok too */ | |
2277 | } | |
fb73857a | 2278 | else |
2279 | break; | |
79072805 | 2280 | } |
bbce6d69 | 2281 | /* can grab env area too? */ |
4efc5df6 GS |
2282 | if (PL_origenviron |
2283 | #ifdef USE_ITHREADS | |
2284 | && PL_curinterp == aTHX | |
2285 | #endif | |
2286 | && (PL_origenviron[0] == s + 1)) | |
2287 | { | |
66b1d557 | 2288 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2289 | /* force copy of environment */ |
3280af22 | 2290 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2291 | if (PL_origenviron[i] == s + 1) { |
2292 | ++s; | |
2293 | s += strlen(s); | |
2294 | } | |
fb73857a | 2295 | else |
2296 | break; | |
79072805 | 2297 | } |
3280af22 | 2298 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2299 | } |
a0d0e21e | 2300 | s = SvPV_force(sv,len); |
8990e307 | 2301 | i = len; |
eb160463 | 2302 | if (i >= (I32)PL_origalen) { |
3280af22 | 2303 | i = PL_origalen; |
fb73857a | 2304 | /* don't allow system to limit $0 seen by script */ |
2305 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2306 | Copy(s, PL_origargv[0], i, char); |
2307 | s = PL_origargv[0]+i; | |
fb73857a | 2308 | *s = '\0'; |
79072805 LW |
2309 | } |
2310 | else { | |
3280af22 NIS |
2311 | Copy(s, PL_origargv[0], i, char); |
2312 | s = PL_origargv[0]+i; | |
79072805 | 2313 | *s++ = '\0'; |
eb160463 | 2314 | while (++i < (I32)PL_origalen) |
f1c3b2ef | 2315 | *s++ = '\0'; |
3280af22 NIS |
2316 | for (i = 1; i < PL_origargc; i++) |
2317 | PL_origargv[i] = Nullch; | |
79072805 | 2318 | } |
e2975953 | 2319 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2320 | break; |
cd39f2b6 | 2321 | #endif |
79072805 LW |
2322 | } |
2323 | return 0; | |
2324 | } | |
2325 | ||
2326 | I32 | |
864dbfa3 | 2327 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2328 | { |
2329 | register char **sigv; | |
2330 | ||
22c35a8c | 2331 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2332 | if (strEQ(sig,*sigv)) |
22c35a8c | 2333 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2334 | #ifdef SIGCLD |
2335 | if (strEQ(sig,"CHLD")) | |
2336 | return SIGCLD; | |
2337 | #endif | |
2338 | #ifdef SIGCHLD | |
2339 | if (strEQ(sig,"CLD")) | |
2340 | return SIGCHLD; | |
2341 | #endif | |
2342 | return 0; | |
2343 | } | |
2344 | ||
df3728a2 | 2345 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2346 | static SV* sig_sv; |
df3728a2 | 2347 | #endif |
84902520 | 2348 | |
ecfc5424 | 2349 | Signal_t |
cea2e8a9 | 2350 | Perl_sighandler(int sig) |
79072805 | 2351 | { |
1018e26f NIS |
2352 | #ifdef PERL_GET_SIG_CONTEXT |
2353 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2354 | #else |
cea2e8a9 | 2355 | dTHX; |
71d280e3 | 2356 | #endif |
79072805 | 2357 | dSP; |
00d579c5 | 2358 | GV *gv = Nullgv; |
a0d0e21e | 2359 | HV *st; |
b7953727 | 2360 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2361 | CV *cv = Nullcv; |
533c011a | 2362 | OP *myop = PL_op; |
84902520 | 2363 | U32 flags = 0; |
3280af22 | 2364 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2365 | |
3280af22 | 2366 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2367 | flags |= 1; |
3280af22 | 2368 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2369 | flags |= 4; |
3280af22 | 2370 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2371 | flags |= 8; |
3280af22 | 2372 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2373 | flags |= 16; |
2374 | ||
727405f8 | 2375 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2376 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2377 | PL_sig_name[sig]); |
2378 | exit(sig); | |
2379 | } | |
ff0cee69 | 2380 | |
84902520 TB |
2381 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2382 | infinity, so we fix 4 (in fact 5): */ | |
2383 | if (flags & 1) { | |
3280af22 | 2384 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2385 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2386 | } |
ac27b0f5 | 2387 | if (flags & 4) |
3280af22 | 2388 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2389 | if (flags & 8) { |
3280af22 NIS |
2390 | PL_retstack_ix++; |
2391 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2392 | } |
2393 | if (flags & 16) | |
3280af22 | 2394 | PL_scopestack_ix += 1; |
84902520 | 2395 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2396 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2397 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2398 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2399 | |
a0d0e21e | 2400 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2401 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2402 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2403 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2404 | : ((cv && CvGV(cv)) |
2405 | ? GvENAME(CvGV(cv)) | |
2406 | : "__ANON__"))); | |
2407 | goto cleanup; | |
79072805 LW |
2408 | } |
2409 | ||
22c35a8c GS |
2410 | if(PL_psig_name[sig]) { |
2411 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2412 | flags |= 64; |
df3728a2 | 2413 | #if !defined(PERL_IMPLICIT_CONTEXT) |
84902520 | 2414 | sig_sv = sv; |
df3728a2 | 2415 | #endif |
84902520 | 2416 | } else { |
ff0cee69 | 2417 | sv = sv_newmortal(); |
22c35a8c | 2418 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2419 | } |
e336de0d | 2420 | |
e788e7d3 | 2421 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2422 | PUSHMARK(SP); |
79072805 | 2423 | PUSHs(sv); |
79072805 | 2424 | PUTBACK; |
a0d0e21e | 2425 | |
1b266415 | 2426 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2427 | |
d3acc0f7 | 2428 | POPSTACK; |
1b266415 | 2429 | if (SvTRUE(ERRSV)) { |
1d615522 | 2430 | #ifndef PERL_MICRO |
983dbef6 | 2431 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2432 | /* Handler "died", for example to get out of a restart-able read(). |
2433 | * Before we re-do that on its behalf re-enable the signal which was | |
2434 | * blocked by the system when we entered. | |
2435 | */ | |
2436 | sigset_t set; | |
2437 | sigemptyset(&set); | |
2438 | sigaddset(&set,sig); | |
2439 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2440 | #else | |
2441 | /* Not clear if this will work */ | |
2442 | (void)rsignal(sig, SIG_IGN); | |
0a8e0eff | 2443 | (void)rsignal(sig, &Perl_csighandler); |
1b266415 | 2444 | #endif |
1d615522 | 2445 | #endif /* !PERL_MICRO */ |
b3fe4827 | 2446 | Perl_die(aTHX_ Nullformat); |
1b266415 | 2447 | } |
00d579c5 | 2448 | cleanup: |
84902520 | 2449 | if (flags & 1) |
3280af22 | 2450 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2451 | if (flags & 4) |
3280af22 | 2452 | PL_markstack_ptr--; |
ac27b0f5 | 2453 | if (flags & 8) |
3280af22 | 2454 | PL_retstack_ix--; |
84902520 | 2455 | if (flags & 16) |
3280af22 | 2456 | PL_scopestack_ix -= 1; |
84902520 TB |
2457 | if (flags & 64) |
2458 | SvREFCNT_dec(sv); | |
533c011a | 2459 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2460 | |
3280af22 NIS |
2461 | PL_Sv = tSv; /* Restore global temporaries. */ |
2462 | PL_Xpv = tXpv; | |
79072805 LW |
2463 | return; |
2464 | } | |
4e35701f NIS |
2465 | |
2466 | ||
51371543 | 2467 | static void |
acfe0abc | 2468 | restore_magic(pTHX_ void *p) |
51371543 | 2469 | { |
48944bdf | 2470 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2471 | SV* sv = mgs->mgs_sv; |
2472 | ||
2473 | if (!sv) | |
2474 | return; | |
2475 | ||
2476 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2477 | { | |
2478 | if (mgs->mgs_flags) | |
2479 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2480 | else | |
2481 | mg_magical(sv); | |
2482 | if (SvGMAGICAL(sv)) | |
2483 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2484 | } | |
2485 | ||
2486 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2487 | ||
2488 | /* If we're still on top of the stack, pop us off. (That condition | |
2489 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2490 | * if it's being called via leave_scope.) | |
2491 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2492 | * may leave alloc gunk on the savestack, and some code | |
2493 | * (e.g. sighandler) doesn't expect that... | |
2494 | */ | |
2495 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2496 | { | |
2497 | I32 popval = SSPOPINT; | |
c76ac1ee | 2498 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2499 | PL_savestack_ix -= 2; |
2500 | popval = SSPOPINT; | |
2501 | assert(popval == SAVEt_ALLOC); | |
2502 | popval = SSPOPINT; | |
2503 | PL_savestack_ix -= popval; | |
2504 | } | |
2505 | ||
2506 | } | |
2507 | ||
2508 | static void | |
acfe0abc | 2509 | unwind_handler_stack(pTHX_ void *p) |
51371543 | 2510 | { |
51371543 GS |
2511 | U32 flags = *(U32*)p; |
2512 | ||
2513 | if (flags & 1) | |
2514 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2515 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2516 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 GS |
2517 | if (flags & 64) |
2518 | SvREFCNT_dec(sig_sv); | |
df3728a2 | 2519 | #endif |
51371543 | 2520 | } |
1018e26f NIS |
2521 | |
2522 |