Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
4eb8286e |
3 | * Copyright (c) 1991-1999, Larry Wall |
79072805 |
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 |
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 |
13 | */ |
14 | |
15 | #include "EXTERN.h" |
16 | #include "perl.h" |
17 | |
e6d9441c |
18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> |
21 | #endif |
a0d0e21e |
22 | |
5cd24f17 |
23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 |
26 | # endif |
27 | #endif |
28 | |
455ece5e |
29 | #ifdef PERL_OBJECT |
30 | # define VTBL this->*vtbl |
31 | #else |
32 | # define VTBL *vtbl |
33 | static void restore_magic _((void *p)); |
b86a2fa7 |
34 | static int magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 f, int n, SV *val); |
455ece5e |
35 | #endif |
36 | |
c07a80fd |
37 | /* |
38 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
39 | */ |
40 | |
41 | struct magic_state { |
42 | SV* mgs_sv; |
43 | U32 mgs_flags; |
455ece5e |
44 | I32 mgs_ss_ix; |
c07a80fd |
45 | }; |
455ece5e |
46 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e |
47 | |
48 | STATIC void |
455ece5e |
49 | save_magic(I32 mgs_ix, SV *sv) |
c07a80fd |
50 | { |
46124e9e |
51 | dTHR; |
455ece5e |
52 | MGS* mgs; |
c07a80fd |
53 | assert(SvMAGICAL(sv)); |
54 | |
455ece5e |
55 | SAVEDESTRUCTOR(restore_magic, (void*)mgs_ix); |
56 | |
57 | mgs = SSPTR(mgs_ix, MGS*); |
c07a80fd |
58 | mgs->mgs_sv = sv; |
59 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
455ece5e |
60 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd |
61 | |
62 | SvMAGICAL_off(sv); |
63 | SvREADONLY_off(sv); |
64 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
65 | } |
66 | |
76e3520e |
67 | STATIC void |
8ac85365 |
68 | restore_magic(void *p) |
c07a80fd |
69 | { |
46124e9e |
70 | dTHR; |
455ece5e |
71 | MGS* mgs = SSPTR((I32)p, MGS*); |
c07a80fd |
72 | SV* sv = mgs->mgs_sv; |
73 | |
455ece5e |
74 | if (!sv) |
75 | return; |
76 | |
c07a80fd |
77 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
78 | { |
79 | if (mgs->mgs_flags) |
80 | SvFLAGS(sv) |= mgs->mgs_flags; |
81 | else |
82 | mg_magical(sv); |
83 | if (SvGMAGICAL(sv)) |
84 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
85 | } |
455ece5e |
86 | |
87 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ |
88 | |
89 | /* If we're still on top of the stack, pop us off. (That condition |
90 | * will be satisfied if restore_magic was called explicitly, but *not* |
91 | * if it's being called via leave_scope.) |
92 | * The reason for doing this is that otherwise, things like sv_2cv() |
93 | * may leave alloc gunk on the savestack, and some code |
94 | * (e.g. sighandler) doesn't expect that... |
95 | */ |
96 | if (PL_savestack_ix == mgs->mgs_ss_ix) |
97 | { |
3c8a4456 |
98 | I32 popval = SSPOPINT; |
99 | assert(popval == SAVEt_DESTRUCTOR); |
455ece5e |
100 | PL_savestack_ix -= 2; |
3c8a4456 |
101 | popval = SSPOPINT; |
102 | assert(popval == SAVEt_ALLOC); |
103 | popval = SSPOPINT; |
104 | PL_savestack_ix -= popval; |
455ece5e |
105 | } |
106 | |
c07a80fd |
107 | } |
108 | |
8990e307 |
109 | void |
8ac85365 |
110 | mg_magical(SV *sv) |
8990e307 |
111 | { |
112 | MAGIC* mg; |
113 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
114 | MGVTBL* vtbl = mg->mg_virtual; |
115 | if (vtbl) { |
76e3520e |
116 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
117 | SvGMAGICAL_on(sv); |
118 | if (vtbl->svt_set) |
119 | SvSMAGICAL_on(sv); |
76e3520e |
120 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 |
121 | SvRMAGICAL_on(sv); |
122 | } |
123 | } |
124 | } |
125 | |
79072805 |
126 | int |
8ac85365 |
127 | mg_get(SV *sv) |
79072805 |
128 | { |
46124e9e |
129 | dTHR; |
455ece5e |
130 | I32 mgs_ix; |
79072805 |
131 | MAGIC* mg; |
c6496cc7 |
132 | MAGIC** mgp; |
760ac839 |
133 | int mgp_valid = 0; |
463ee0b2 |
134 | |
455ece5e |
135 | mgs_ix = SSNEW(sizeof(MGS)); |
136 | save_magic(mgs_ix, sv); |
463ee0b2 |
137 | |
c6496cc7 |
138 | mgp = &SvMAGIC(sv); |
139 | while ((mg = *mgp) != 0) { |
79072805 |
140 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e |
141 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
142 | (VTBL->svt_get)(sv, mg); |
c6496cc7 |
143 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
144 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
145 | (mg->mg_flags & MGf_GSKIP)) |
455ece5e |
146 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
147 | } |
c6496cc7 |
148 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
149 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
150 | mgp = &mg->mg_moremagic; |
760ac839 |
151 | mgp_valid = 1; |
152 | } |
153 | else |
154 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
155 | } |
463ee0b2 |
156 | |
455ece5e |
157 | restore_magic((void*)mgs_ix); |
79072805 |
158 | return 0; |
159 | } |
160 | |
161 | int |
8ac85365 |
162 | mg_set(SV *sv) |
79072805 |
163 | { |
46124e9e |
164 | dTHR; |
455ece5e |
165 | I32 mgs_ix; |
79072805 |
166 | MAGIC* mg; |
463ee0b2 |
167 | MAGIC* nextmg; |
168 | |
455ece5e |
169 | mgs_ix = SSNEW(sizeof(MGS)); |
170 | save_magic(mgs_ix, sv); |
463ee0b2 |
171 | |
172 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
173 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
174 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
175 | if (mg->mg_flags & MGf_GSKIP) { |
176 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
455ece5e |
177 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
178 | } |
76e3520e |
179 | if (vtbl && (vtbl->svt_set != NULL)) |
180 | (VTBL->svt_set)(sv, mg); |
79072805 |
181 | } |
463ee0b2 |
182 | |
455ece5e |
183 | restore_magic((void*)mgs_ix); |
79072805 |
184 | return 0; |
185 | } |
186 | |
187 | U32 |
565764a8 |
188 | mg_length(SV *sv) |
79072805 |
189 | { |
190 | MAGIC* mg; |
748a9306 |
191 | char *junk; |
463ee0b2 |
192 | STRLEN len; |
463ee0b2 |
193 | |
79072805 |
194 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
195 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e |
196 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e |
197 | I32 mgs_ix; |
48e43a1c |
198 | |
455ece5e |
199 | mgs_ix = SSNEW(sizeof(MGS)); |
200 | save_magic(mgs_ix, sv); |
a0d0e21e |
201 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e |
202 | len = (VTBL->svt_len)(sv, mg); |
455ece5e |
203 | restore_magic((void*)mgs_ix); |
85e6fe83 |
204 | return len; |
205 | } |
206 | } |
207 | |
748a9306 |
208 | junk = SvPV(sv, len); |
463ee0b2 |
209 | return len; |
79072805 |
210 | } |
211 | |
93965878 |
212 | I32 |
213 | mg_size(SV *sv) |
214 | { |
215 | MAGIC* mg; |
216 | I32 len; |
217 | |
218 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
219 | MGVTBL* vtbl = mg->mg_virtual; |
565764a8 |
220 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e |
221 | I32 mgs_ix; |
222 | |
223 | mgs_ix = SSNEW(sizeof(MGS)); |
224 | save_magic(mgs_ix, sv); |
93965878 |
225 | /* omit MGf_GSKIP -- not changed here */ |
565764a8 |
226 | len = (VTBL->svt_len)(sv, mg); |
455ece5e |
227 | restore_magic((void*)mgs_ix); |
93965878 |
228 | return len; |
229 | } |
230 | } |
231 | |
232 | switch(SvTYPE(sv)) { |
233 | case SVt_PVAV: |
234 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
235 | return len; |
236 | case SVt_PVHV: |
237 | /* FIXME */ |
238 | default: |
239 | croak("Size magic not implemented"); |
240 | break; |
241 | } |
242 | return 0; |
243 | } |
244 | |
79072805 |
245 | int |
8ac85365 |
246 | mg_clear(SV *sv) |
79072805 |
247 | { |
455ece5e |
248 | I32 mgs_ix; |
79072805 |
249 | MAGIC* mg; |
463ee0b2 |
250 | |
455ece5e |
251 | mgs_ix = SSNEW(sizeof(MGS)); |
252 | save_magic(mgs_ix, sv); |
463ee0b2 |
253 | |
79072805 |
254 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
255 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
256 | /* omit GSKIP -- never set here */ |
257 | |
76e3520e |
258 | if (vtbl && (vtbl->svt_clear != NULL)) |
259 | (VTBL->svt_clear)(sv, mg); |
79072805 |
260 | } |
463ee0b2 |
261 | |
455ece5e |
262 | restore_magic((void*)mgs_ix); |
79072805 |
263 | return 0; |
264 | } |
265 | |
93a17b20 |
266 | MAGIC* |
8ac85365 |
267 | mg_find(SV *sv, int type) |
93a17b20 |
268 | { |
269 | MAGIC* mg; |
93a17b20 |
270 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
271 | if (mg->mg_type == type) |
272 | return mg; |
273 | } |
274 | return 0; |
275 | } |
276 | |
79072805 |
277 | int |
08105a92 |
278 | mg_copy(SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 |
279 | { |
463ee0b2 |
280 | int count = 0; |
79072805 |
281 | MAGIC* mg; |
463ee0b2 |
282 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
283 | if (isUPPER(mg->mg_type)) { |
33c27489 |
284 | sv_magic(nsv, |
285 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj, |
286 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
287 | count++; |
79072805 |
288 | } |
79072805 |
289 | } |
463ee0b2 |
290 | return count; |
79072805 |
291 | } |
292 | |
293 | int |
8ac85365 |
294 | mg_free(SV *sv) |
79072805 |
295 | { |
296 | MAGIC* mg; |
297 | MAGIC* moremagic; |
298 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
299 | MGVTBL* vtbl = mg->mg_virtual; |
300 | moremagic = mg->mg_moremagic; |
76e3520e |
301 | if (vtbl && (vtbl->svt_free != NULL)) |
302 | (VTBL->svt_free)(sv, mg); |
93a17b20 |
303 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 |
304 | if (mg->mg_len >= 0) |
88e89b8a |
305 | Safefree(mg->mg_ptr); |
565764a8 |
306 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
307 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
308 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
309 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
310 | Safefree(mg); |
311 | } |
312 | SvMAGIC(sv) = 0; |
313 | return 0; |
314 | } |
315 | |
316 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
317 | #include <signal.h> |
318 | #endif |
319 | |
942e002e |
320 | U32 |
6cef1e77 |
321 | magic_regdata_cnt(SV *sv, MAGIC *mg) |
322 | { |
323 | dTHR; |
324 | register char *s; |
325 | register I32 i; |
326 | register REGEXP *rx; |
327 | char *t; |
328 | |
8f580fb8 |
329 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
330 | if (mg->mg_obj) /* @+ */ |
331 | return rx->nparens; |
332 | else /* @- */ |
333 | return rx->lastparen; |
334 | } |
335 | |
942e002e |
336 | return (U32)-1; |
6cef1e77 |
337 | } |
338 | |
339 | int |
340 | magic_regdatum_get(SV *sv, MAGIC *mg) |
341 | { |
342 | dTHR; |
343 | register I32 paren; |
cf93c79d |
344 | register I32 s; |
6cef1e77 |
345 | register I32 i; |
346 | register REGEXP *rx; |
cf93c79d |
347 | I32 t; |
6cef1e77 |
348 | |
349 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
350 | paren = mg->mg_len; |
351 | if (paren < 0) |
352 | return 0; |
353 | if (paren <= rx->nparens && |
cf93c79d |
354 | (s = rx->startp[paren]) != -1 && |
355 | (t = rx->endp[paren]) != -1) |
6cef1e77 |
356 | { |
357 | if (mg->mg_obj) /* @+ */ |
cf93c79d |
358 | i = t; |
6cef1e77 |
359 | else /* @- */ |
cf93c79d |
360 | i = s; |
6cef1e77 |
361 | sv_setiv(sv,i); |
362 | } |
363 | } |
364 | return 0; |
365 | } |
366 | |
93a17b20 |
367 | U32 |
8ac85365 |
368 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 |
369 | { |
a863c7d1 |
370 | dTHR; |
93a17b20 |
371 | register I32 paren; |
372 | register char *s; |
373 | register I32 i; |
d9f97599 |
374 | register REGEXP *rx; |
748a9306 |
375 | char *t; |
93a17b20 |
376 | |
377 | switch (*mg->mg_ptr) { |
378 | case '1': case '2': case '3': case '4': |
379 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
380 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
381 | I32 s1, t1; |
382 | |
93a17b20 |
383 | paren = atoi(mg->mg_ptr); |
384 | getparen: |
d9f97599 |
385 | if (paren <= rx->nparens && |
cf93c79d |
386 | (s1 = rx->startp[paren]) != -1 && |
387 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
388 | { |
cf93c79d |
389 | i = t1 - s1; |
71be2cbc |
390 | if (i >= 0) |
93a17b20 |
391 | return i; |
93a17b20 |
392 | } |
93a17b20 |
393 | } |
748a9306 |
394 | return 0; |
93a17b20 |
395 | case '+': |
3280af22 |
396 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
397 | paren = rx->lastparen; |
13f57bf8 |
398 | if (paren) |
399 | goto getparen; |
93a17b20 |
400 | } |
748a9306 |
401 | return 0; |
93a17b20 |
402 | case '`': |
3280af22 |
403 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
404 | if (rx->startp[0] != -1) { |
405 | i = rx->startp[0]; |
71be2cbc |
406 | if (i >= 0) |
93a17b20 |
407 | return i; |
93a17b20 |
408 | } |
93a17b20 |
409 | } |
748a9306 |
410 | return 0; |
93a17b20 |
411 | case '\'': |
3280af22 |
412 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
413 | if (rx->endp[0] != -1) { |
414 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
415 | if (i >= 0) |
5cd24f17 |
416 | return i; |
93a17b20 |
417 | } |
93a17b20 |
418 | } |
748a9306 |
419 | return 0; |
93a17b20 |
420 | case ',': |
3280af22 |
421 | return (STRLEN)PL_ofslen; |
93a17b20 |
422 | case '\\': |
3280af22 |
423 | return (STRLEN)PL_orslen; |
93a17b20 |
424 | } |
425 | magic_get(sv,mg); |
2d8e6c8d |
426 | if (!SvPOK(sv) && SvNIOK(sv)) { |
427 | STRLEN n_a; |
428 | sv_2pv(sv, &n_a); |
429 | } |
93a17b20 |
430 | if (SvPOK(sv)) |
431 | return SvCUR(sv); |
432 | return 0; |
433 | } |
434 | |
599cee73 |
435 | #if 0 |
436 | static char * |
437 | printW(sv) |
438 | SV * sv ; |
439 | { |
440 | #if 1 |
441 | return "" ; |
442 | |
443 | #else |
444 | int i ; |
445 | static char buffer[50] ; |
446 | char buf1[20] ; |
447 | char * p ; |
448 | |
449 | |
450 | sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ; |
451 | p = SvPVX(sv) ; |
452 | for (i = 0; i < SvCUR(sv) ; ++ i) { |
453 | sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ; |
454 | strcat(buffer, buf1) ; |
455 | } |
456 | |
457 | return buffer ; |
458 | |
459 | #endif |
460 | } |
461 | #endif |
462 | |
79072805 |
463 | int |
8ac85365 |
464 | magic_get(SV *sv, MAGIC *mg) |
79072805 |
465 | { |
a863c7d1 |
466 | dTHR; |
79072805 |
467 | register I32 paren; |
468 | register char *s; |
469 | register I32 i; |
d9f97599 |
470 | register REGEXP *rx; |
748a9306 |
471 | char *t; |
79072805 |
472 | |
473 | switch (*mg->mg_ptr) { |
748a9306 |
474 | case '\001': /* ^A */ |
3280af22 |
475 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
476 | break; |
599cee73 |
477 | case '\002': /* ^B */ |
478 | /* printf("magic_get $^B: ") ; */ |
e24b16f9 |
479 | if (PL_curcop->cop_warnings == WARN_NONE) |
599cee73 |
480 | /* printf("WARN_NONE\n"), */ |
481 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
e24b16f9 |
482 | else if (PL_curcop->cop_warnings == WARN_ALL) |
599cee73 |
483 | /* printf("WARN_ALL\n"), */ |
484 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
485 | else |
e24b16f9 |
486 | /* printf("some %s\n", printW(PL_curcop->cop_warnings)), */ |
487 | sv_setsv(sv, PL_curcop->cop_warnings); |
599cee73 |
488 | break; |
49460fe6 |
489 | case '\003': /* ^C */ |
490 | sv_setiv(sv, (IV)PL_minus_c); |
491 | break; |
492 | |
79072805 |
493 | case '\004': /* ^D */ |
3280af22 |
494 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 |
495 | break; |
28f23441 |
496 | case '\005': /* ^E */ |
497 | #ifdef VMS |
498 | { |
499 | # include <descrip.h> |
500 | # include <starlet.h> |
501 | char msg[255]; |
502 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
503 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
504 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
505 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
506 | else |
507 | sv_setpv(sv,""); |
508 | } |
509 | #else |
88e89b8a |
510 | #ifdef OS2 |
fb73857a |
511 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
512 | sv_setnv(sv, (double)errno); |
513 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
514 | } else { |
017f25f1 |
515 | if (errno != errno_isOS2) { |
516 | int tmp = _syserrno(); |
517 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
518 | Perl_rc = tmp; |
519 | } |
fb73857a |
520 | sv_setnv(sv, (double)Perl_rc); |
521 | sv_setpv(sv, os2error(Perl_rc)); |
522 | } |
88e89b8a |
523 | #else |
22fae026 |
524 | #ifdef WIN32 |
525 | { |
526 | DWORD dwErr = GetLastError(); |
527 | sv_setnv(sv, (double)dwErr); |
528 | if (dwErr) |
76e3520e |
529 | { |
530 | #ifdef PERL_OBJECT |
531 | char *sMsg; |
532 | DWORD dwLen; |
533 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); |
534 | sv_setpvn(sv, sMsg, dwLen); |
535 | PerlProc_FreeBuf(sMsg); |
536 | #else |
22fae026 |
537 | win32_str_os_error(sv, dwErr); |
76e3520e |
538 | #endif |
539 | } |
22fae026 |
540 | else |
541 | sv_setpv(sv, ""); |
542 | SetLastError(dwErr); |
543 | } |
544 | #else |
946ec16e |
545 | sv_setnv(sv, (double)errno); |
28f23441 |
546 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
547 | #endif |
88e89b8a |
548 | #endif |
22fae026 |
549 | #endif |
946ec16e |
550 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
551 | break; |
79072805 |
552 | case '\006': /* ^F */ |
3280af22 |
553 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
554 | break; |
a0d0e21e |
555 | case '\010': /* ^H */ |
3280af22 |
556 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
557 | break; |
9d116dd7 |
558 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
559 | if (PL_inplace) |
560 | sv_setpv(sv, PL_inplace); |
79072805 |
561 | else |
3280af22 |
562 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
563 | break; |
28f23441 |
564 | case '\017': /* ^O */ |
3280af22 |
565 | sv_setpv(sv, PL_osname); |
28f23441 |
566 | break; |
79072805 |
567 | case '\020': /* ^P */ |
3280af22 |
568 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
569 | break; |
fb73857a |
570 | case '\023': /* ^S */ |
d58bf5aa |
571 | { |
572 | dTHR; |
3280af22 |
573 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa |
574 | SvOK_off(sv); |
3280af22 |
575 | else if (PL_in_eval) |
d58bf5aa |
576 | sv_setiv(sv, 1); |
577 | else |
578 | sv_setiv(sv, 0); |
579 | } |
fb73857a |
580 | break; |
79072805 |
581 | case '\024': /* ^T */ |
88e89b8a |
582 | #ifdef BIG_TIME |
6b88bc9c |
583 | sv_setnv(sv, PL_basetime); |
88e89b8a |
584 | #else |
3280af22 |
585 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
586 | #endif |
79072805 |
587 | break; |
588 | case '\027': /* ^W */ |
599cee73 |
589 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 |
590 | break; |
591 | case '1': case '2': case '3': case '4': |
592 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
593 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
594 | I32 s1, t1; |
595 | |
a863c7d1 |
596 | /* |
597 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
598 | * XXX Does the new way break anything? |
599 | */ |
600 | paren = atoi(mg->mg_ptr); |
79072805 |
601 | getparen: |
d9f97599 |
602 | if (paren <= rx->nparens && |
cf93c79d |
603 | (s1 = rx->startp[paren]) != -1 && |
604 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
605 | { |
cf93c79d |
606 | i = t1 - s1; |
607 | s = rx->subbeg + s1; |
13f57bf8 |
608 | getrx: |
748a9306 |
609 | if (i >= 0) { |
13f57bf8 |
610 | bool was_tainted; |
3280af22 |
611 | if (PL_tainting) { |
612 | was_tainted = PL_tainted; |
613 | PL_tainted = FALSE; |
13f57bf8 |
614 | } |
cf93c79d |
615 | sv_setpvn(sv, s, i); |
3280af22 |
616 | if (PL_tainting) |
617 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); |
748a9306 |
618 | break; |
619 | } |
79072805 |
620 | } |
79072805 |
621 | } |
3280af22 |
622 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
623 | break; |
624 | case '+': |
3280af22 |
625 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
626 | paren = rx->lastparen; |
a0d0e21e |
627 | if (paren) |
628 | goto getparen; |
79072805 |
629 | } |
3280af22 |
630 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
631 | break; |
632 | case '`': |
3280af22 |
633 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
634 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
635 | i = rx->startp[0]; |
13f57bf8 |
636 | goto getrx; |
79072805 |
637 | } |
79072805 |
638 | } |
3280af22 |
639 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
640 | break; |
641 | case '\'': |
3280af22 |
642 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
643 | if (rx->subbeg && rx->endp[0] != -1) { |
644 | s = rx->subbeg + rx->endp[0]; |
645 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
646 | goto getrx; |
79072805 |
647 | } |
79072805 |
648 | } |
3280af22 |
649 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
650 | break; |
651 | case '.': |
652 | #ifndef lint |
3280af22 |
653 | if (GvIO(PL_last_in_gv)) { |
654 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); |
79072805 |
655 | } |
656 | #endif |
657 | break; |
658 | case '?': |
809a5acc |
659 | { |
809a5acc |
660 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
661 | #ifdef COMPLEX_STATUS |
6b88bc9c |
662 | LvTARGOFF(sv) = PL_statusvalue; |
663 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
664 | #endif |
809a5acc |
665 | } |
79072805 |
666 | break; |
667 | case '^': |
3280af22 |
668 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
669 | if (s) |
670 | sv_setpv(sv,s); |
671 | else { |
3280af22 |
672 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
673 | sv_catpv(sv,"_TOP"); |
674 | } |
675 | break; |
676 | case '~': |
3280af22 |
677 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
678 | if (!s) |
3280af22 |
679 | s = GvENAME(PL_defoutgv); |
79072805 |
680 | sv_setpv(sv,s); |
681 | break; |
682 | #ifndef lint |
683 | case '=': |
3280af22 |
684 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
685 | break; |
686 | case '-': |
3280af22 |
687 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
688 | break; |
689 | case '%': |
3280af22 |
690 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
691 | break; |
692 | #endif |
693 | case ':': |
694 | break; |
695 | case '/': |
696 | break; |
697 | case '[': |
3280af22 |
698 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
699 | break; |
700 | case '|': |
3280af22 |
701 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
702 | break; |
703 | case ',': |
3280af22 |
704 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 |
705 | break; |
706 | case '\\': |
3280af22 |
707 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 |
708 | break; |
709 | case '#': |
3280af22 |
710 | sv_setpv(sv,PL_ofmt); |
79072805 |
711 | break; |
712 | case '!': |
a5f75d66 |
713 | #ifdef VMS |
946ec16e |
714 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
715 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
716 | #else |
88e89b8a |
717 | { |
718 | int saveerrno = errno; |
946ec16e |
719 | sv_setnv(sv, (double)errno); |
88e89b8a |
720 | #ifdef OS2 |
721 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
722 | else |
a5f75d66 |
723 | #endif |
2304df62 |
724 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
725 | errno = saveerrno; |
726 | } |
727 | #endif |
946ec16e |
728 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
729 | break; |
730 | case '<': |
3280af22 |
731 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
732 | break; |
733 | case '>': |
3280af22 |
734 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
735 | break; |
736 | case '(': |
3280af22 |
737 | sv_setiv(sv, (IV)PL_gid); |
738 | sv_setpvf(sv, "%Vd", (IV)PL_gid); |
79072805 |
739 | goto add_groups; |
740 | case ')': |
3280af22 |
741 | sv_setiv(sv, (IV)PL_egid); |
742 | sv_setpvf(sv, "%Vd", (IV)PL_egid); |
79072805 |
743 | add_groups: |
79072805 |
744 | #ifdef HAS_GETGROUPS |
79072805 |
745 | { |
a0d0e21e |
746 | Groups_t gary[NGROUPS]; |
79072805 |
747 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
748 | while (--i >= 0) |
fc36a67e |
749 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
750 | } |
751 | #endif |
29355cf7 |
752 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
753 | break; |
754 | case '*': |
755 | break; |
756 | case '0': |
757 | break; |
a863c7d1 |
758 | #ifdef USE_THREADS |
759 | case '@': |
38a03e6e |
760 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
761 | break; |
762 | #endif /* USE_THREADS */ |
79072805 |
763 | } |
a0d0e21e |
764 | return 0; |
79072805 |
765 | } |
766 | |
767 | int |
8ac85365 |
768 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 |
769 | { |
770 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
771 | |
772 | if (uf && uf->uf_val) |
773 | (*uf->uf_val)(uf->uf_index, sv); |
774 | return 0; |
775 | } |
776 | |
777 | int |
8ac85365 |
778 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 |
779 | { |
780 | register char *s; |
88e89b8a |
781 | char *ptr; |
5aabfad6 |
782 | STRLEN len, klen; |
a0d0e21e |
783 | I32 i; |
1e422769 |
784 | |
a0d0e21e |
785 | s = SvPV(sv,len); |
5aabfad6 |
786 | ptr = MgPV(mg,klen); |
88e89b8a |
787 | my_setenv(ptr, s); |
1e422769 |
788 | |
a0d0e21e |
789 | #ifdef DYNAMIC_ENV_FETCH |
790 | /* We just undefd an environment var. Is a replacement */ |
791 | /* waiting in the wings? */ |
792 | if (!len) { |
5aabfad6 |
793 | SV **valp; |
6b88bc9c |
794 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 |
795 | s = SvPV(*valp, len); |
a0d0e21e |
796 | } |
797 | #endif |
1e422769 |
798 | |
39e571d4 |
799 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
800 | /* And you'll never guess what the dog had */ |
801 | /* in its mouth... */ |
3280af22 |
802 | if (PL_tainting) { |
1e422769 |
803 | MgTAINTEDDIR_off(mg); |
804 | #ifdef VMS |
5aabfad6 |
805 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
806 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
807 | struct stat sbuf; |
808 | int i = 0, j = 0; |
809 | |
810 | do { /* DCL$PATH may be a search list */ |
811 | while (1) { /* as may dev portion of any element */ |
812 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
813 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
814 | cando_by_name(S_IWUSR,0,elt) ) { |
815 | MgTAINTEDDIR_on(mg); |
816 | return 0; |
817 | } |
818 | } |
819 | if ((cp = strchr(elt, ':')) != Nullch) |
820 | *cp = '\0'; |
821 | if (my_trnlnm(elt, eltbuf, j++)) |
822 | elt = eltbuf; |
823 | else |
824 | break; |
825 | } |
826 | j = 0; |
827 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
828 | } |
829 | #endif /* VMS */ |
5aabfad6 |
830 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
831 | char *strend = s + len; |
463ee0b2 |
832 | |
833 | while (s < strend) { |
96827780 |
834 | char tmpbuf[256]; |
1e422769 |
835 | struct stat st; |
96827780 |
836 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
837 | s, strend, ':', &i); |
463ee0b2 |
838 | s++; |
96827780 |
839 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
840 | || *tmpbuf != '/' |
c6ed36e1 |
841 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
842 | MgTAINTEDDIR_on(mg); |
1e422769 |
843 | return 0; |
844 | } |
463ee0b2 |
845 | } |
79072805 |
846 | } |
847 | } |
39e571d4 |
848 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
849 | |
79072805 |
850 | return 0; |
851 | } |
852 | |
853 | int |
8ac85365 |
854 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 |
855 | { |
2d8e6c8d |
856 | STRLEN n_a; |
857 | my_setenv(MgPV(mg,n_a),Nullch); |
85e6fe83 |
858 | return 0; |
859 | } |
860 | |
88e89b8a |
861 | int |
8ac85365 |
862 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a |
863 | { |
864 | #if defined(VMS) |
865 | die("Can't make list assignment to %%ENV on this system"); |
866 | #else |
d58bf5aa |
867 | dTHR; |
3280af22 |
868 | if (PL_localizing) { |
fb73857a |
869 | HE* entry; |
2d8e6c8d |
870 | STRLEN n_a; |
fb73857a |
871 | magic_clear_all_env(sv,mg); |
872 | hv_iterinit((HV*)sv); |
873 | while (entry = hv_iternext((HV*)sv)) { |
874 | I32 keylen; |
875 | my_setenv(hv_iterkey(entry, &keylen), |
2d8e6c8d |
876 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a |
877 | } |
878 | } |
879 | #endif |
880 | return 0; |
881 | } |
882 | |
883 | int |
8ac85365 |
884 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 |
885 | { |
3e3baf6d |
886 | #if defined(VMS) |
887 | die("Can't make list assignment to %%ENV on this system"); |
888 | #else |
f2517201 |
889 | # ifdef WIN32 |
3e3baf6d |
890 | char *envv = GetEnvironmentStrings(); |
891 | char *cur = envv; |
892 | STRLEN len; |
893 | while (*cur) { |
894 | char *end = strchr(cur,'='); |
895 | if (end && end != cur) { |
896 | *end = '\0'; |
897 | my_setenv(cur,Nullch); |
898 | *end = '='; |
ac5c734f |
899 | cur = end + strlen(end+1)+2; |
3e3baf6d |
900 | } |
901 | else if ((len = strlen(cur))) |
902 | cur += len+1; |
903 | } |
904 | FreeEnvironmentStrings(envv); |
f2517201 |
905 | # else |
906 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 |
907 | I32 i; |
908 | |
3280af22 |
909 | if (environ == PL_origenviron) |
f2517201 |
910 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 |
911 | else |
912 | for (i = 0; environ[i]; i++) |
f2517201 |
913 | safesysfree(environ[i]); |
914 | # endif /* PERL_USE_SAFE_PUTENV */ |
915 | |
66b1d557 |
916 | environ[0] = Nullch; |
917 | |
f2517201 |
918 | # endif /* WIN32 */ |
919 | #endif /* VMS */ |
3e3baf6d |
920 | return 0; |
66b1d557 |
921 | } |
922 | |
923 | int |
8ac85365 |
924 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a |
925 | { |
926 | I32 i; |
2d8e6c8d |
927 | STRLEN n_a; |
88e89b8a |
928 | /* Are we fetching a signal entry? */ |
2d8e6c8d |
929 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
930 | if (i) { |
22c35a8c |
931 | if(PL_psig_ptr[i]) |
932 | sv_setsv(sv,PL_psig_ptr[i]); |
88e89b8a |
933 | else { |
ff68c719 |
934 | Sighandler_t sigstate = rsignal_state(i); |
935 | |
88e89b8a |
936 | /* cache state so we don't fetch it again */ |
ff68c719 |
937 | if(sigstate == SIG_IGN) |
88e89b8a |
938 | sv_setpv(sv,"IGNORE"); |
939 | else |
3280af22 |
940 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c |
941 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
942 | SvTEMP_off(sv); |
943 | } |
944 | } |
945 | return 0; |
946 | } |
947 | int |
8ac85365 |
948 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a |
949 | { |
950 | I32 i; |
2d8e6c8d |
951 | STRLEN n_a; |
88e89b8a |
952 | /* Are we clearing a signal entry? */ |
2d8e6c8d |
953 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
954 | if (i) { |
22c35a8c |
955 | if(PL_psig_ptr[i]) { |
956 | SvREFCNT_dec(PL_psig_ptr[i]); |
957 | PL_psig_ptr[i]=0; |
88e89b8a |
958 | } |
22c35a8c |
959 | if(PL_psig_name[i]) { |
960 | SvREFCNT_dec(PL_psig_name[i]); |
961 | PL_psig_name[i]=0; |
88e89b8a |
962 | } |
963 | } |
964 | return 0; |
965 | } |
3d37d572 |
966 | |
85e6fe83 |
967 | int |
8ac85365 |
968 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 |
969 | { |
11343788 |
970 | dTHR; |
79072805 |
971 | register char *s; |
972 | I32 i; |
748a9306 |
973 | SV** svp; |
e72dc28c |
974 | STRLEN len; |
a0d0e21e |
975 | |
e72dc28c |
976 | s = MgPV(mg,len); |
748a9306 |
977 | if (*s == '_') { |
978 | if (strEQ(s,"__DIE__")) |
3280af22 |
979 | svp = &PL_diehook; |
748a9306 |
980 | else if (strEQ(s,"__WARN__")) |
3280af22 |
981 | svp = &PL_warnhook; |
748a9306 |
982 | else if (strEQ(s,"__PARSE__")) |
3280af22 |
983 | svp = &PL_parsehook; |
748a9306 |
984 | else |
985 | croak("No such hook: %s", s); |
986 | i = 0; |
4633a7c4 |
987 | if (*svp) { |
988 | SvREFCNT_dec(*svp); |
989 | *svp = 0; |
990 | } |
748a9306 |
991 | } |
992 | else { |
993 | i = whichsig(s); /* ...no, a brick */ |
994 | if (!i) { |
599cee73 |
995 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
996 | warner(WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 |
997 | return 0; |
998 | } |
22c35a8c |
999 | SvREFCNT_dec(PL_psig_name[i]); |
1000 | SvREFCNT_dec(PL_psig_ptr[i]); |
1001 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1002 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c |
1003 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c |
1004 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 |
1005 | } |
a0d0e21e |
1006 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
1007 | if (i) |
3280af22 |
1008 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
1009 | else |
1010 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
1011 | return 0; |
1012 | } |
e72dc28c |
1013 | s = SvPV_force(sv,len); |
748a9306 |
1014 | if (strEQ(s,"IGNORE")) { |
1015 | if (i) |
ff68c719 |
1016 | (void)rsignal(i, SIG_IGN); |
748a9306 |
1017 | else |
1018 | *svp = 0; |
1019 | } |
1020 | else if (strEQ(s,"DEFAULT") || !*s) { |
1021 | if (i) |
ff68c719 |
1022 | (void)rsignal(i, SIG_DFL); |
748a9306 |
1023 | else |
1024 | *svp = 0; |
1025 | } |
79072805 |
1026 | else { |
5aabfad6 |
1027 | /* |
1028 | * We should warn if HINT_STRICT_REFS, but without |
1029 | * access to a known hint bit in a known OP, we can't |
1030 | * tell whether HINT_STRICT_REFS is in force or not. |
1031 | */ |
46fc3d4c |
1032 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c |
1033 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 |
1034 | if (i) |
3280af22 |
1035 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
1036 | else |
1037 | *svp = SvREFCNT_inc(sv); |
79072805 |
1038 | } |
1039 | return 0; |
1040 | } |
1041 | |
1042 | int |
8ac85365 |
1043 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 |
1044 | { |
3280af22 |
1045 | PL_sub_generation++; |
463ee0b2 |
1046 | return 0; |
1047 | } |
1048 | |
1049 | int |
8ac85365 |
1050 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 |
1051 | { |
a0d0e21e |
1052 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
1053 | PL_amagic_generation++; |
463ee0b2 |
1054 | |
a0d0e21e |
1055 | return 0; |
1056 | } |
463ee0b2 |
1057 | |
946ec16e |
1058 | int |
6ff81951 |
1059 | magic_getnkeys(SV *sv, MAGIC *mg) |
1060 | { |
1061 | HV *hv = (HV*)LvTARG(sv); |
1062 | HE *entry; |
1063 | I32 i = 0; |
1064 | |
1065 | if (hv) { |
1066 | (void) hv_iterinit(hv); |
33c27489 |
1067 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 |
1068 | i = HvKEYS(hv); |
1069 | else { |
1070 | /*SUPPRESS 560*/ |
1071 | while (entry = hv_iternext(hv)) { |
1072 | i++; |
1073 | } |
1074 | } |
1075 | } |
1076 | |
1077 | sv_setiv(sv, (IV)i); |
1078 | return 0; |
1079 | } |
1080 | |
1081 | int |
8ac85365 |
1082 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e |
1083 | { |
1084 | if (LvTARG(sv)) { |
1085 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1086 | } |
1087 | return 0; |
93965878 |
1088 | } |
946ec16e |
1089 | |
e336de0d |
1090 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1091 | STATIC int |
33c27489 |
1092 | magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1093 | { |
1094 | dSP; |
463ee0b2 |
1095 | |
924508f0 |
1096 | PUSHMARK(SP); |
1097 | EXTEND(SP, n); |
33c27489 |
1098 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 |
1099 | if (n > 1) { |
1100 | if (mg->mg_ptr) { |
565764a8 |
1101 | if (mg->mg_len >= 0) |
79cb57f6 |
1102 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 |
1103 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1104 | PUSHs((SV*)mg->mg_ptr); |
1105 | } |
1106 | else if (mg->mg_type == 'p') { |
565764a8 |
1107 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1108 | } |
1109 | } |
1110 | if (n > 2) { |
1111 | PUSHs(val); |
88e89b8a |
1112 | } |
463ee0b2 |
1113 | PUTBACK; |
1114 | |
93965878 |
1115 | return perl_call_method(meth, flags); |
946ec16e |
1116 | } |
1117 | |
76e3520e |
1118 | STATIC int |
8ac85365 |
1119 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1120 | { |
1121 | dSP; |
463ee0b2 |
1122 | |
a0d0e21e |
1123 | ENTER; |
1124 | SAVETMPS; |
e788e7d3 |
1125 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1126 | |
33c27489 |
1127 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1128 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1129 | } |
463ee0b2 |
1130 | |
d3acc0f7 |
1131 | POPSTACK; |
a0d0e21e |
1132 | FREETMPS; |
1133 | LEAVE; |
1134 | return 0; |
1135 | } |
463ee0b2 |
1136 | |
a0d0e21e |
1137 | int |
8ac85365 |
1138 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e |
1139 | { |
1140 | magic_methpack(sv,mg,"FETCH"); |
1141 | if (mg->mg_ptr) |
1142 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1143 | return 0; |
1144 | } |
1145 | |
1146 | int |
8ac85365 |
1147 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d |
1148 | { |
1149 | dSP; |
a60c0954 |
1150 | ENTER; |
e788e7d3 |
1151 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1152 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1153 | POPSTACK; |
a60c0954 |
1154 | LEAVE; |
463ee0b2 |
1155 | return 0; |
1156 | } |
1157 | |
1158 | int |
8ac85365 |
1159 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 |
1160 | { |
a0d0e21e |
1161 | return magic_methpack(sv,mg,"DELETE"); |
1162 | } |
463ee0b2 |
1163 | |
93965878 |
1164 | |
1165 | U32 |
1166 | magic_sizepack(SV *sv, MAGIC *mg) |
1167 | { |
e336de0d |
1168 | dSP; |
93965878 |
1169 | U32 retval = 0; |
1170 | |
1171 | ENTER; |
1172 | SAVETMPS; |
e788e7d3 |
1173 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1174 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1175 | sv = *PL_stack_sp--; |
a60c0954 |
1176 | retval = (U32) SvIV(sv)-1; |
93965878 |
1177 | } |
d3acc0f7 |
1178 | POPSTACK; |
93965878 |
1179 | FREETMPS; |
1180 | LEAVE; |
1181 | return retval; |
1182 | } |
1183 | |
8ac85365 |
1184 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e |
1185 | { |
1186 | dSP; |
463ee0b2 |
1187 | |
e336de0d |
1188 | ENTER; |
e788e7d3 |
1189 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1190 | PUSHMARK(SP); |
33c27489 |
1191 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1192 | PUTBACK; |
a0d0e21e |
1193 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1194 | POPSTACK; |
a60c0954 |
1195 | LEAVE; |
463ee0b2 |
1196 | return 0; |
1197 | } |
1198 | |
1199 | int |
8ac85365 |
1200 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1201 | { |
463ee0b2 |
1202 | dSP; |
a0d0e21e |
1203 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1204 | |
1205 | ENTER; |
a0d0e21e |
1206 | SAVETMPS; |
e788e7d3 |
1207 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1208 | PUSHMARK(SP); |
1209 | EXTEND(SP, 2); |
33c27489 |
1210 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1211 | if (SvOK(key)) |
1212 | PUSHs(key); |
1213 | PUTBACK; |
1214 | |
a0d0e21e |
1215 | if (perl_call_method(meth, G_SCALAR)) |
3280af22 |
1216 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1217 | |
d3acc0f7 |
1218 | POPSTACK; |
a0d0e21e |
1219 | FREETMPS; |
1220 | LEAVE; |
79072805 |
1221 | return 0; |
1222 | } |
1223 | |
1224 | int |
8ac85365 |
1225 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e |
1226 | { |
1227 | return magic_methpack(sv,mg,"EXISTS"); |
1228 | } |
1229 | |
1230 | int |
8ac85365 |
1231 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 |
1232 | { |
11343788 |
1233 | dTHR; |
79072805 |
1234 | OP *o; |
1235 | I32 i; |
1236 | GV* gv; |
1237 | SV** svp; |
2d8e6c8d |
1238 | STRLEN n_a; |
79072805 |
1239 | |
3280af22 |
1240 | gv = PL_DBline; |
79072805 |
1241 | i = SvTRUE(sv); |
188ea221 |
1242 | svp = av_fetch(GvAV(gv), |
2d8e6c8d |
1243 | atoi(MgPV(mg,n_a)), FALSE); |
8990e307 |
1244 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
1245 | o->op_private = i; |
79072805 |
1246 | else |
1247 | warn("Can't break at that line\n"); |
1248 | return 0; |
1249 | } |
1250 | |
1251 | int |
8ac85365 |
1252 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 |
1253 | { |
0f15f207 |
1254 | dTHR; |
3280af22 |
1255 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 |
1256 | return 0; |
1257 | } |
1258 | |
1259 | int |
8ac85365 |
1260 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 |
1261 | { |
0f15f207 |
1262 | dTHR; |
3280af22 |
1263 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e |
1264 | return 0; |
1265 | } |
1266 | |
1267 | int |
8ac85365 |
1268 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1269 | { |
1270 | SV* lsv = LvTARG(sv); |
1271 | |
1272 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1273 | mg = mg_find(lsv, 'g'); |
565764a8 |
1274 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1275 | dTHR; |
a0ed51b3 |
1276 | I32 i = mg->mg_len; |
1277 | if (IN_UTF8) |
1278 | sv_pos_b2u(lsv, &i); |
1279 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1280 | return 0; |
1281 | } |
1282 | } |
1283 | (void)SvOK_off(sv); |
1284 | return 0; |
1285 | } |
1286 | |
1287 | int |
8ac85365 |
1288 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1289 | { |
1290 | SV* lsv = LvTARG(sv); |
1291 | SSize_t pos; |
1292 | STRLEN len; |
a0ed51b3 |
1293 | STRLEN ulen; |
c485e607 |
1294 | dTHR; |
a0d0e21e |
1295 | |
1296 | mg = 0; |
1297 | |
1298 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1299 | mg = mg_find(lsv, 'g'); |
1300 | if (!mg) { |
1301 | if (!SvOK(sv)) |
1302 | return 0; |
1303 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1304 | mg = mg_find(lsv, 'g'); |
1305 | } |
1306 | else if (!SvOK(sv)) { |
565764a8 |
1307 | mg->mg_len = -1; |
a0d0e21e |
1308 | return 0; |
1309 | } |
1310 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1311 | |
c485e607 |
1312 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1313 | |
1314 | if (IN_UTF8) { |
1315 | ulen = sv_len_utf8(lsv); |
1316 | if (ulen) |
1317 | len = ulen; |
1318 | else |
1319 | ulen = 0; |
1320 | } |
1321 | |
a0d0e21e |
1322 | if (pos < 0) { |
1323 | pos += len; |
1324 | if (pos < 0) |
1325 | pos = 0; |
1326 | } |
1327 | else if (pos > len) |
1328 | pos = len; |
a0ed51b3 |
1329 | |
1330 | if (ulen) { |
1331 | I32 p = pos; |
1332 | sv_pos_u2b(lsv, &p, 0); |
1333 | pos = p; |
1334 | } |
1335 | |
565764a8 |
1336 | mg->mg_len = pos; |
71be2cbc |
1337 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1338 | |
79072805 |
1339 | return 0; |
1340 | } |
1341 | |
1342 | int |
8ac85365 |
1343 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 |
1344 | { |
8646b087 |
1345 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1346 | SvFAKE_off(sv); |
946ec16e |
1347 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1348 | SvFAKE_on(sv); |
1349 | } |
1350 | else |
946ec16e |
1351 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1352 | return 0; |
1353 | } |
1354 | |
1355 | int |
8ac85365 |
1356 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 |
1357 | { |
1358 | register char *s; |
1359 | GV* gv; |
2d8e6c8d |
1360 | STRLEN n_a; |
79072805 |
1361 | |
1362 | if (!SvOK(sv)) |
1363 | return 0; |
2d8e6c8d |
1364 | s = SvPV(sv, n_a); |
79072805 |
1365 | if (*s == '*' && s[1]) |
1366 | s++; |
85e6fe83 |
1367 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1368 | if (sv == (SV*)gv) |
1369 | return 0; |
1370 | if (GvGP(sv)) |
88e89b8a |
1371 | gp_free((GV*)sv); |
79072805 |
1372 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1373 | return 0; |
1374 | } |
1375 | |
1376 | int |
6ff81951 |
1377 | magic_getsubstr(SV *sv, MAGIC *mg) |
1378 | { |
1379 | STRLEN len; |
1380 | SV *lsv = LvTARG(sv); |
1381 | char *tmps = SvPV(lsv,len); |
1382 | I32 offs = LvTARGOFF(sv); |
1383 | I32 rem = LvTARGLEN(sv); |
1384 | |
1385 | if (offs > len) |
1386 | offs = len; |
1387 | if (rem + offs > len) |
1388 | rem = len - offs; |
1389 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
1390 | return 0; |
1391 | } |
1392 | |
1393 | int |
8ac85365 |
1394 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 |
1395 | { |
8990e307 |
1396 | STRLEN len; |
1397 | char *tmps = SvPV(sv,len); |
1398 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1399 | return 0; |
1400 | } |
1401 | |
1402 | int |
8ac85365 |
1403 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1404 | { |
a863c7d1 |
1405 | dTHR; |
565764a8 |
1406 | TAINT_IF((mg->mg_len & 1) || |
1407 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1408 | return 0; |
1409 | } |
1410 | |
1411 | int |
8ac85365 |
1412 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1413 | { |
11343788 |
1414 | dTHR; |
3280af22 |
1415 | if (PL_localizing) { |
1416 | if (PL_localizing == 1) |
565764a8 |
1417 | mg->mg_len <<= 1; |
748a9306 |
1418 | else |
565764a8 |
1419 | mg->mg_len >>= 1; |
a0d0e21e |
1420 | } |
3280af22 |
1421 | else if (PL_tainted) |
565764a8 |
1422 | mg->mg_len |= 1; |
748a9306 |
1423 | else |
565764a8 |
1424 | mg->mg_len &= ~1; |
463ee0b2 |
1425 | return 0; |
1426 | } |
1427 | |
1428 | int |
6ff81951 |
1429 | magic_getvec(SV *sv, MAGIC *mg) |
1430 | { |
1431 | SV *lsv = LvTARG(sv); |
1432 | unsigned char *s; |
1433 | unsigned long retnum; |
1434 | STRLEN lsvlen; |
1435 | I32 len; |
1436 | I32 offset; |
1437 | I32 size; |
1438 | |
1439 | if (!lsv) { |
1440 | SvOK_off(sv); |
1441 | return 0; |
1442 | } |
1443 | s = (unsigned char *) SvPV(lsv, lsvlen); |
1444 | offset = LvTARGOFF(sv); |
1445 | size = LvTARGLEN(sv); |
1446 | len = (offset + size + 7) / 8; |
1447 | |
1448 | /* Copied from pp_vec() */ |
1449 | |
1450 | if (len > lsvlen) { |
1451 | if (size <= 8) |
1452 | retnum = 0; |
1453 | else { |
1454 | offset >>= 3; |
1455 | if (size == 16) { |
1456 | if (offset >= lsvlen) |
1457 | retnum = 0; |
1458 | else |
1459 | retnum = (unsigned long) s[offset] << 8; |
1460 | } |
1461 | else if (size == 32) { |
1462 | if (offset >= lsvlen) |
1463 | retnum = 0; |
1464 | else if (offset + 1 >= lsvlen) |
1465 | retnum = (unsigned long) s[offset] << 24; |
1466 | else if (offset + 2 >= lsvlen) |
1467 | retnum = ((unsigned long) s[offset] << 24) + |
1468 | ((unsigned long) s[offset + 1] << 16); |
1469 | else |
1470 | retnum = ((unsigned long) s[offset] << 24) + |
1471 | ((unsigned long) s[offset + 1] << 16) + |
1472 | (s[offset + 2] << 8); |
1473 | } |
1474 | } |
1475 | } |
1476 | else if (size < 8) |
1477 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); |
1478 | else { |
1479 | offset >>= 3; |
1480 | if (size == 8) |
1481 | retnum = s[offset]; |
1482 | else if (size == 16) |
1483 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; |
1484 | else if (size == 32) |
1485 | retnum = ((unsigned long) s[offset] << 24) + |
1486 | ((unsigned long) s[offset + 1] << 16) + |
1487 | (s[offset + 2] << 8) + s[offset+3]; |
1488 | } |
1489 | |
1490 | sv_setuv(sv, (UV)retnum); |
1491 | return 0; |
1492 | } |
1493 | |
1494 | int |
8ac85365 |
1495 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 |
1496 | { |
1497 | do_vecset(sv); /* XXX slurp this routine */ |
1498 | return 0; |
1499 | } |
1500 | |
1501 | int |
8ac85365 |
1502 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1503 | { |
71be2cbc |
1504 | SV *targ = Nullsv; |
5f05dabc |
1505 | if (LvTARGLEN(sv)) { |
68dc0745 |
1506 | if (mg->mg_obj) { |
74e13ce4 |
1507 | SV *ahv = LvTARG(sv); |
1508 | if (SvTYPE(ahv) == SVt_PVHV) { |
1509 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1510 | if (he) |
1511 | targ = HeVAL(he); |
1512 | } |
1513 | else { |
1514 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); |
1515 | if (svp) |
1516 | targ = *svp; |
1517 | } |
68dc0745 |
1518 | } |
1519 | else { |
3c78fafa |
1520 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1521 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1522 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1523 | } |
3280af22 |
1524 | if (targ && targ != &PL_sv_undef) { |
e858de61 |
1525 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1526 | /* somebody else defined it for us */ |
1527 | SvREFCNT_dec(LvTARG(sv)); |
1528 | LvTARG(sv) = SvREFCNT_inc(targ); |
1529 | LvTARGLEN(sv) = 0; |
1530 | SvREFCNT_dec(mg->mg_obj); |
1531 | mg->mg_obj = Nullsv; |
1532 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1533 | } |
5f05dabc |
1534 | } |
71be2cbc |
1535 | else |
1536 | targ = LvTARG(sv); |
3280af22 |
1537 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
1538 | return 0; |
1539 | } |
1540 | |
1541 | int |
8ac85365 |
1542 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc |
1543 | { |
1544 | if (LvTARGLEN(sv)) |
68dc0745 |
1545 | vivify_defelem(sv); |
1546 | if (LvTARG(sv)) { |
5f05dabc |
1547 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1548 | SvSETMAGIC(LvTARG(sv)); |
1549 | } |
5f05dabc |
1550 | return 0; |
1551 | } |
1552 | |
71be2cbc |
1553 | void |
8ac85365 |
1554 | vivify_defelem(SV *sv) |
71be2cbc |
1555 | { |
e858de61 |
1556 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 |
1557 | MAGIC *mg; |
1558 | SV *value = Nullsv; |
71be2cbc |
1559 | |
68dc0745 |
1560 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1561 | return; |
68dc0745 |
1562 | if (mg->mg_obj) { |
74e13ce4 |
1563 | SV *ahv = LvTARG(sv); |
2d8e6c8d |
1564 | STRLEN n_a; |
74e13ce4 |
1565 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 |
1566 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1567 | if (he) |
1568 | value = HeVAL(he); |
1569 | } |
1570 | else { |
af7f9c15 |
1571 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1572 | if (svp) |
1573 | value = *svp; |
1574 | } |
3280af22 |
1575 | if (!value || value == &PL_sv_undef) |
2d8e6c8d |
1576 | croak(PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc |
1577 | } |
68dc0745 |
1578 | else { |
1579 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1580 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1581 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1582 | else { |
1583 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
1584 | if (!svp || (value = *svp) == &PL_sv_undef) |
22c35a8c |
1585 | croak(PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 |
1586 | } |
1587 | } |
3e3baf6d |
1588 | (void)SvREFCNT_inc(value); |
68dc0745 |
1589 | SvREFCNT_dec(LvTARG(sv)); |
1590 | LvTARG(sv) = value; |
71be2cbc |
1591 | LvTARGLEN(sv) = 0; |
68dc0745 |
1592 | SvREFCNT_dec(mg->mg_obj); |
1593 | mg->mg_obj = Nullsv; |
1594 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1595 | } |
1596 | |
1597 | int |
810b8aa5 |
1598 | magic_killbackrefs(SV *sv, MAGIC *mg) |
1599 | { |
1600 | AV *av = (AV*)mg->mg_obj; |
1601 | SV **svp = AvARRAY(av); |
1602 | I32 i = AvFILLp(av); |
1603 | while (i >= 0) { |
1604 | if (svp[i] && svp[i] != &PL_sv_undef) { |
1605 | if (!SvWEAKREF(svp[i])) |
1606 | croak("panic: magic_killbackrefs"); |
1607 | /* XXX Should we check that it hasn't changed? */ |
1608 | SvRV(svp[i]) = 0; |
1609 | SvOK_off(svp[i]); |
1610 | SvWEAKREF_off(svp[i]); |
1611 | svp[i] = &PL_sv_undef; |
1612 | } |
1613 | i--; |
1614 | } |
1615 | return 0; |
1616 | } |
1617 | |
1618 | int |
8ac85365 |
1619 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 |
1620 | { |
565764a8 |
1621 | mg->mg_len = -1; |
c6496cc7 |
1622 | SvSCREAM_off(sv); |
93a17b20 |
1623 | return 0; |
1624 | } |
1625 | |
1626 | int |
8ac85365 |
1627 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 |
1628 | { |
463ee0b2 |
1629 | sv_unmagic(sv, 'B'); |
79072805 |
1630 | SvVALID_off(sv); |
1631 | return 0; |
1632 | } |
1633 | |
1634 | int |
8ac85365 |
1635 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff |
1636 | { |
1637 | sv_unmagic(sv, 'f'); |
1638 | SvCOMPILED_off(sv); |
1639 | return 0; |
1640 | } |
1641 | |
1642 | int |
8ac85365 |
1643 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 |
1644 | { |
1645 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1646 | |
1647 | if (uf && uf->uf_set) |
1648 | (*uf->uf_set)(uf->uf_index, sv); |
1649 | return 0; |
1650 | } |
1651 | |
c277df42 |
1652 | int |
1653 | magic_freeregexp(SV *sv, MAGIC *mg) |
1654 | { |
1655 | regexp *re = (regexp *)mg->mg_obj; |
1656 | ReREFCNT_dec(re); |
1657 | return 0; |
1658 | } |
1659 | |
7a4c00b4 |
1660 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1661 | int |
8ac85365 |
1662 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 |
1663 | { |
1664 | /* |
838b5b74 |
1665 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 |
1666 | * and vanished with a faint plop. |
1667 | */ |
7a4c00b4 |
1668 | if (mg->mg_ptr) { |
1669 | Safefree(mg->mg_ptr); |
1670 | mg->mg_ptr = NULL; |
565764a8 |
1671 | mg->mg_len = -1; |
7a4c00b4 |
1672 | } |
bbce6d69 |
1673 | return 0; |
1674 | } |
7a4c00b4 |
1675 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1676 | |
1677 | int |
8ac85365 |
1678 | magic_set(SV *sv, MAGIC *mg) |
79072805 |
1679 | { |
11343788 |
1680 | dTHR; |
79072805 |
1681 | register char *s; |
1682 | I32 i; |
8990e307 |
1683 | STRLEN len; |
79072805 |
1684 | switch (*mg->mg_ptr) { |
748a9306 |
1685 | case '\001': /* ^A */ |
3280af22 |
1686 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
1687 | break; |
599cee73 |
1688 | case '\002': /* ^B */ |
1689 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1690 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) |
e24b16f9 |
1691 | PL_compiling.cop_warnings = WARN_ALL; |
599cee73 |
1692 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 |
1693 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 |
1694 | else { |
e24b16f9 |
1695 | if (PL_compiling.cop_warnings != WARN_NONE && |
1696 | PL_compiling.cop_warnings != WARN_ALL) |
1697 | sv_setsv(PL_compiling.cop_warnings, sv); |
599cee73 |
1698 | else |
e24b16f9 |
1699 | PL_compiling.cop_warnings = newSVsv(sv) ; |
599cee73 |
1700 | } |
1701 | } |
1702 | break; |
49460fe6 |
1703 | |
1704 | case '\003': /* ^C */ |
1705 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1706 | break; |
1707 | |
79072805 |
1708 | case '\004': /* ^D */ |
3280af22 |
1709 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1710 | DEBUG_x(dump_all()); |
1711 | break; |
28f23441 |
1712 | case '\005': /* ^E */ |
1713 | #ifdef VMS |
1714 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1715 | #else |
22fae026 |
1716 | #ifdef WIN32 |
1717 | SetLastError( SvIV(sv) ); |
1718 | #else |
f86702cc |
1719 | /* will anyone ever use this? */ |
1720 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1721 | #endif |
22fae026 |
1722 | #endif |
28f23441 |
1723 | break; |
79072805 |
1724 | case '\006': /* ^F */ |
3280af22 |
1725 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1726 | break; |
a0d0e21e |
1727 | case '\010': /* ^H */ |
3280af22 |
1728 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
1729 | break; |
9d116dd7 |
1730 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
1731 | if (PL_inplace) |
1732 | Safefree(PL_inplace); |
79072805 |
1733 | if (SvOK(sv)) |
2d8e6c8d |
1734 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 |
1735 | else |
3280af22 |
1736 | PL_inplace = Nullch; |
79072805 |
1737 | break; |
28f23441 |
1738 | case '\017': /* ^O */ |
3280af22 |
1739 | if (PL_osname) |
1740 | Safefree(PL_osname); |
28f23441 |
1741 | if (SvOK(sv)) |
2d8e6c8d |
1742 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 |
1743 | else |
3280af22 |
1744 | PL_osname = Nullch; |
28f23441 |
1745 | break; |
79072805 |
1746 | case '\020': /* ^P */ |
3280af22 |
1747 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1748 | break; |
1749 | case '\024': /* ^T */ |
88e89b8a |
1750 | #ifdef BIG_TIME |
6b88bc9c |
1751 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
1752 | #else |
3280af22 |
1753 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1754 | #endif |
79072805 |
1755 | break; |
1756 | case '\027': /* ^W */ |
599cee73 |
1757 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1758 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1759 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; |
1760 | } |
79072805 |
1761 | break; |
1762 | case '.': |
3280af22 |
1763 | if (PL_localizing) { |
1764 | if (PL_localizing == 1) |
1765 | save_sptr((SV**)&PL_last_in_gv); |
748a9306 |
1766 | } |
3280af22 |
1767 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1768 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); |
79072805 |
1769 | break; |
1770 | case '^': |
3280af22 |
1771 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1772 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1773 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1774 | break; |
1775 | case '~': |
3280af22 |
1776 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1777 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1778 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1779 | break; |
1780 | case '=': |
3280af22 |
1781 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1782 | break; |
1783 | case '-': |
3280af22 |
1784 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1785 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1786 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
1787 | break; |
1788 | case '%': |
3280af22 |
1789 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1790 | break; |
1791 | case '|': |
4b65379b |
1792 | { |
3280af22 |
1793 | IO *io = GvIOp(PL_defoutgv); |
4b65379b |
1794 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1795 | IoFLAGS(io) &= ~IOf_FLUSH; |
1796 | else { |
1797 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1798 | PerlIO *ofp = IoOFP(io); |
1799 | if (ofp) |
1800 | (void)PerlIO_flush(ofp); |
1801 | IoFLAGS(io) |= IOf_FLUSH; |
1802 | } |
1803 | } |
79072805 |
1804 | } |
1805 | break; |
1806 | case '*': |
463ee0b2 |
1807 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 |
1808 | PL_multiline = (i != 0); |
79072805 |
1809 | break; |
1810 | case '/': |
3280af22 |
1811 | SvREFCNT_dec(PL_nrs); |
1812 | PL_nrs = newSVsv(sv); |
1813 | SvREFCNT_dec(PL_rs); |
1814 | PL_rs = SvREFCNT_inc(PL_nrs); |
79072805 |
1815 | break; |
1816 | case '\\': |
3280af22 |
1817 | if (PL_ors) |
1818 | Safefree(PL_ors); |
e3c19b7b |
1819 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 |
1820 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b |
1821 | else { |
3280af22 |
1822 | PL_ors = Nullch; |
1823 | PL_orslen = 0; |
e3c19b7b |
1824 | } |
79072805 |
1825 | break; |
1826 | case ',': |
3280af22 |
1827 | if (PL_ofs) |
1828 | Safefree(PL_ofs); |
1829 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); |
79072805 |
1830 | break; |
1831 | case '#': |
3280af22 |
1832 | if (PL_ofmt) |
1833 | Safefree(PL_ofmt); |
2d8e6c8d |
1834 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 |
1835 | break; |
1836 | case '[': |
3280af22 |
1837 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1838 | break; |
1839 | case '?': |
ff0cee69 |
1840 | #ifdef COMPLEX_STATUS |
6b88bc9c |
1841 | if (PL_localizing == 2) { |
1842 | PL_statusvalue = LvTARGOFF(sv); |
1843 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
1844 | } |
1845 | else |
1846 | #endif |
1847 | #ifdef VMSISH_STATUS |
1848 | if (VMSISH_STATUS) |
1849 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1850 | else |
1851 | #endif |
1852 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1853 | break; |
1854 | case '!': |
78987ded |
1855 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc |
1856 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1857 | break; |
1858 | case '<': |
3280af22 |
1859 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1860 | if (PL_delaymagic) { |
1861 | PL_delaymagic |= DM_RUID; |
79072805 |
1862 | break; /* don't do magic till later */ |
1863 | } |
1864 | #ifdef HAS_SETRUID |
b28d0864 |
1865 | (void)setruid((Uid_t)PL_uid); |
79072805 |
1866 | #else |
1867 | #ifdef HAS_SETREUID |
3280af22 |
1868 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
1869 | #else |
85e6fe83 |
1870 | #ifdef HAS_SETRESUID |
b28d0864 |
1871 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1872 | #else |
b28d0864 |
1873 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1874 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
1875 | else { |
b28d0864 |
1876 | PL_uid = (I32)PerlProc_getuid(); |
463ee0b2 |
1877 | croak("setruid() not implemented"); |
a0d0e21e |
1878 | } |
79072805 |
1879 | #endif |
1880 | #endif |
85e6fe83 |
1881 | #endif |
3280af22 |
1882 | PL_uid = (I32)PerlProc_getuid(); |
1883 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1884 | break; |
1885 | case '>': |
3280af22 |
1886 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1887 | if (PL_delaymagic) { |
1888 | PL_delaymagic |= DM_EUID; |
79072805 |
1889 | break; /* don't do magic till later */ |
1890 | } |
1891 | #ifdef HAS_SETEUID |
3280af22 |
1892 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
1893 | #else |
1894 | #ifdef HAS_SETREUID |
b28d0864 |
1895 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
1896 | #else |
1897 | #ifdef HAS_SETRESUID |
6b88bc9c |
1898 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
1899 | #else |
b28d0864 |
1900 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1901 | PerlProc_setuid(PL_euid); |
a0d0e21e |
1902 | else { |
b28d0864 |
1903 | PL_euid = (I32)PerlProc_geteuid(); |
463ee0b2 |
1904 | croak("seteuid() not implemented"); |
a0d0e21e |
1905 | } |
79072805 |
1906 | #endif |
1907 | #endif |
85e6fe83 |
1908 | #endif |
3280af22 |
1909 | PL_euid = (I32)PerlProc_geteuid(); |
1910 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1911 | break; |
1912 | case '(': |
3280af22 |
1913 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1914 | if (PL_delaymagic) { |
1915 | PL_delaymagic |= DM_RGID; |
79072805 |
1916 | break; /* don't do magic till later */ |
1917 | } |
1918 | #ifdef HAS_SETRGID |
b28d0864 |
1919 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
1920 | #else |
1921 | #ifdef HAS_SETREGID |
3280af22 |
1922 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
1923 | #else |
1924 | #ifdef HAS_SETRESGID |
b28d0864 |
1925 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1926 | #else |
b28d0864 |
1927 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1928 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
1929 | else { |
b28d0864 |
1930 | PL_gid = (I32)PerlProc_getgid(); |
463ee0b2 |
1931 | croak("setrgid() not implemented"); |
748a9306 |
1932 | } |
79072805 |
1933 | #endif |
1934 | #endif |
85e6fe83 |
1935 | #endif |
3280af22 |
1936 | PL_gid = (I32)PerlProc_getgid(); |
1937 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1938 | break; |
1939 | case ')': |
5cd24f17 |
1940 | #ifdef HAS_SETGROUPS |
1941 | { |
2d8e6c8d |
1942 | char *p = SvPV(sv, len); |
5cd24f17 |
1943 | Groups_t gary[NGROUPS]; |
1944 | |
1945 | SET_NUMERIC_STANDARD(); |
1946 | while (isSPACE(*p)) |
1947 | ++p; |
3280af22 |
1948 | PL_egid = I_V(atof(p)); |
5cd24f17 |
1949 | for (i = 0; i < NGROUPS; ++i) { |
1950 | while (*p && !isSPACE(*p)) |
1951 | ++p; |
1952 | while (isSPACE(*p)) |
1953 | ++p; |
1954 | if (!*p) |
1955 | break; |
1956 | gary[i] = I_V(atof(p)); |
1957 | } |
8cc95fdb |
1958 | if (i) |
1959 | (void)setgroups(i, gary); |
5cd24f17 |
1960 | } |
1961 | #else /* HAS_SETGROUPS */ |
b28d0864 |
1962 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1963 | #endif /* HAS_SETGROUPS */ |
3280af22 |
1964 | if (PL_delaymagic) { |
1965 | PL_delaymagic |= DM_EGID; |
79072805 |
1966 | break; /* don't do magic till later */ |
1967 | } |
1968 | #ifdef HAS_SETEGID |
3280af22 |
1969 | (void)setegid((Gid_t)PL_egid); |
79072805 |
1970 | #else |
1971 | #ifdef HAS_SETREGID |
b28d0864 |
1972 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
1973 | #else |
1974 | #ifdef HAS_SETRESGID |
b28d0864 |
1975 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
1976 | #else |
b28d0864 |
1977 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1978 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
1979 | else { |
b28d0864 |
1980 | PL_egid = (I32)PerlProc_getegid(); |
463ee0b2 |
1981 | croak("setegid() not implemented"); |
748a9306 |
1982 | } |
79072805 |
1983 | #endif |
1984 | #endif |
85e6fe83 |
1985 | #endif |
3280af22 |
1986 | PL_egid = (I32)PerlProc_getegid(); |
1987 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1988 | break; |
1989 | case ':': |
2d8e6c8d |
1990 | PL_chopset = SvPV_force(sv,len); |
79072805 |
1991 | break; |
1992 | case '0': |
3280af22 |
1993 | if (!PL_origalen) { |
1994 | s = PL_origargv[0]; |
79072805 |
1995 | s += strlen(s); |
1996 | /* See if all the arguments are contiguous in memory */ |
3280af22 |
1997 | for (i = 1; i < PL_origargc; i++) { |
1998 | if (PL_origargv[i] == s + 1 |
fb73857a |
1999 | #ifdef OS2 |
6b88bc9c |
2000 | || PL_origargv[i] == s + 2 |
fb73857a |
2001 | #endif |
2002 | ) |
379c4362 |
2003 | { |
2004 | ++s; |
2005 | s += strlen(s); /* this one is ok too */ |
2006 | } |
fb73857a |
2007 | else |
2008 | break; |
79072805 |
2009 | } |
bbce6d69 |
2010 | /* can grab env area too? */ |
3280af22 |
2011 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a |
2012 | #ifdef OS2 |
6b88bc9c |
2013 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a |
2014 | #endif |
2015 | )) { |
66b1d557 |
2016 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
2017 | /* force copy of environment */ |
3280af22 |
2018 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 |
2019 | if (PL_origenviron[i] == s + 1) { |
2020 | ++s; |
2021 | s += strlen(s); |
2022 | } |
fb73857a |
2023 | else |
2024 | break; |
79072805 |
2025 | } |
3280af22 |
2026 | PL_origalen = s - PL_origargv[0]; |
79072805 |
2027 | } |
a0d0e21e |
2028 | s = SvPV_force(sv,len); |
8990e307 |
2029 | i = len; |
3280af22 |
2030 | if (i >= PL_origalen) { |
2031 | i = PL_origalen; |
fb73857a |
2032 | /* don't allow system to limit $0 seen by script */ |
2033 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
3280af22 |
2034 | Copy(s, PL_origargv[0], i, char); |
2035 | s = PL_origargv[0]+i; |
fb73857a |
2036 | *s = '\0'; |
79072805 |
2037 | } |
2038 | else { |
3280af22 |
2039 | Copy(s, PL_origargv[0], i, char); |
2040 | s = PL_origargv[0]+i; |
79072805 |
2041 | *s++ = '\0'; |
3280af22 |
2042 | while (++i < PL_origalen) |
8990e307 |
2043 | *s++ = ' '; |
3280af22 |
2044 | s = PL_origargv[0]+i; |
2045 | for (i = 1; i < PL_origargc; i++) |
2046 | PL_origargv[i] = Nullch; |
79072805 |
2047 | } |
2048 | break; |
a863c7d1 |
2049 | #ifdef USE_THREADS |
2050 | case '@': |
38a03e6e |
2051 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
2052 | break; |
2053 | #endif /* USE_THREADS */ |
79072805 |
2054 | } |
2055 | return 0; |
2056 | } |
2057 | |
f93b4edd |
2058 | #ifdef USE_THREADS |
2059 | int |
8ac85365 |
2060 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd |
2061 | { |
2062 | dTHR; |
8b73bbec |
2063 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 |
2064 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
2065 | if (MgOWNER(mg)) |
2066 | croak("panic: magic_mutexfree"); |
2067 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2068 | COND_DESTROY(MgCONDP(mg)); |
2069 | return 0; |
2070 | } |
2071 | #endif /* USE_THREADS */ |
2072 | |
79072805 |
2073 | I32 |
8ac85365 |
2074 | whichsig(char *sig) |
79072805 |
2075 | { |
2076 | register char **sigv; |
2077 | |
22c35a8c |
2078 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 |
2079 | if (strEQ(sig,*sigv)) |
22c35a8c |
2080 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 |
2081 | #ifdef SIGCLD |
2082 | if (strEQ(sig,"CHLD")) |
2083 | return SIGCLD; |
2084 | #endif |
2085 | #ifdef SIGCHLD |
2086 | if (strEQ(sig,"CLD")) |
2087 | return SIGCHLD; |
2088 | #endif |
2089 | return 0; |
2090 | } |
2091 | |
84902520 |
2092 | static SV* sig_sv; |
2093 | |
76e3520e |
2094 | STATIC void |
8ac85365 |
2095 | unwind_handler_stack(void *p) |
84902520 |
2096 | { |
ff26ac79 |
2097 | dTHR; |
84902520 |
2098 | U32 flags = *(U32*)p; |
2099 | |
2100 | if (flags & 1) |
3280af22 |
2101 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 |
2102 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2103 | if (flags & 64) |
2104 | SvREFCNT_dec(sig_sv); |
2105 | } |
2106 | |
ecfc5424 |
2107 | Signal_t |
8ac85365 |
2108 | sighandler(int sig) |
79072805 |
2109 | { |
2110 | dSP; |
00d579c5 |
2111 | GV *gv = Nullgv; |
a0d0e21e |
2112 | HV *st; |
3280af22 |
2113 | SV *sv, *tSv = PL_Sv; |
00d579c5 |
2114 | CV *cv = Nullcv; |
533c011a |
2115 | OP *myop = PL_op; |
84902520 |
2116 | U32 flags = 0; |
3280af22 |
2117 | I32 o_save_i = PL_savestack_ix, type; |
2118 | XPV *tXpv = PL_Xpv; |
84902520 |
2119 | |
3280af22 |
2120 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2121 | flags |= 1; |
3280af22 |
2122 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2123 | flags |= 4; |
3280af22 |
2124 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 |
2125 | flags |= 8; |
3280af22 |
2126 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2127 | flags |= 16; |
2128 | |
22c35a8c |
2129 | if (!PL_psig_ptr[sig]) |
ff0cee69 |
2130 | die("Signal SIG%s received, but no signal handler set.\n", |
22c35a8c |
2131 | PL_sig_name[sig]); |
ff0cee69 |
2132 | |
84902520 |
2133 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2134 | infinity, so we fix 4 (in fact 5): */ |
2135 | if (flags & 1) { |
3280af22 |
2136 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2137 | o_save_i = PL_savestack_ix; |
565764a8 |
2138 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 |
2139 | } |
2140 | if (flags & 4) |
3280af22 |
2141 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2142 | if (flags & 8) { |
3280af22 |
2143 | PL_retstack_ix++; |
2144 | PL_retstack[PL_retstack_ix] = NULL; |
84902520 |
2145 | } |
2146 | if (flags & 16) |
3280af22 |
2147 | PL_scopestack_ix += 1; |
84902520 |
2148 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c |
2149 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 |
2150 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c |
2151 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 |
2152 | |
a0d0e21e |
2153 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2154 | if (ckWARN(WARN_SIGNAL)) |
2155 | warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c |
2156 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 |
2157 | : ((cv && CvGV(cv)) |
2158 | ? GvENAME(CvGV(cv)) |
2159 | : "__ANON__"))); |
2160 | goto cleanup; |
79072805 |
2161 | } |
2162 | |
22c35a8c |
2163 | if(PL_psig_name[sig]) { |
2164 | sv = SvREFCNT_inc(PL_psig_name[sig]); |
84902520 |
2165 | flags |= 64; |
2166 | sig_sv = sv; |
2167 | } else { |
ff0cee69 |
2168 | sv = sv_newmortal(); |
22c35a8c |
2169 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a |
2170 | } |
e336de0d |
2171 | |
e788e7d3 |
2172 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2173 | PUSHMARK(SP); |
79072805 |
2174 | PUSHs(sv); |
79072805 |
2175 | PUTBACK; |
a0d0e21e |
2176 | |
2177 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
2178 | |
d3acc0f7 |
2179 | POPSTACK; |
00d579c5 |
2180 | cleanup: |
84902520 |
2181 | if (flags & 1) |
3280af22 |
2182 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 |
2183 | if (flags & 4) |
3280af22 |
2184 | PL_markstack_ptr--; |
84902520 |
2185 | if (flags & 8) |
3280af22 |
2186 | PL_retstack_ix--; |
84902520 |
2187 | if (flags & 16) |
3280af22 |
2188 | PL_scopestack_ix -= 1; |
84902520 |
2189 | if (flags & 64) |
2190 | SvREFCNT_dec(sv); |
533c011a |
2191 | PL_op = myop; /* Apparently not needed... */ |
84902520 |
2192 | |
3280af22 |
2193 | PL_Sv = tSv; /* Restore global temporaries. */ |
2194 | PL_Xpv = tXpv; |
79072805 |
2195 | return; |
2196 | } |
4e35701f |
2197 | |
2198 | |