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 |
20ce7b12 |
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 * |
ba106d47 |
437 | printW(SV *sv) |
599cee73 |
438 | { |
439 | #if 1 |
440 | return "" ; |
441 | |
442 | #else |
443 | int i ; |
444 | static char buffer[50] ; |
445 | char buf1[20] ; |
446 | char * p ; |
447 | |
448 | |
449 | sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ; |
450 | p = SvPVX(sv) ; |
451 | for (i = 0; i < SvCUR(sv) ; ++ i) { |
452 | sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ; |
453 | strcat(buffer, buf1) ; |
454 | } |
455 | |
456 | return buffer ; |
457 | |
458 | #endif |
459 | } |
460 | #endif |
461 | |
79072805 |
462 | int |
8ac85365 |
463 | magic_get(SV *sv, MAGIC *mg) |
79072805 |
464 | { |
a863c7d1 |
465 | dTHR; |
79072805 |
466 | register I32 paren; |
467 | register char *s; |
468 | register I32 i; |
d9f97599 |
469 | register REGEXP *rx; |
748a9306 |
470 | char *t; |
79072805 |
471 | |
472 | switch (*mg->mg_ptr) { |
748a9306 |
473 | case '\001': /* ^A */ |
3280af22 |
474 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
475 | break; |
599cee73 |
476 | case '\002': /* ^B */ |
477 | /* printf("magic_get $^B: ") ; */ |
e24b16f9 |
478 | if (PL_curcop->cop_warnings == WARN_NONE) |
599cee73 |
479 | /* printf("WARN_NONE\n"), */ |
480 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
e24b16f9 |
481 | else if (PL_curcop->cop_warnings == WARN_ALL) |
599cee73 |
482 | /* printf("WARN_ALL\n"), */ |
483 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
484 | else |
e24b16f9 |
485 | /* printf("some %s\n", printW(PL_curcop->cop_warnings)), */ |
486 | sv_setsv(sv, PL_curcop->cop_warnings); |
599cee73 |
487 | break; |
49460fe6 |
488 | case '\003': /* ^C */ |
489 | sv_setiv(sv, (IV)PL_minus_c); |
490 | break; |
491 | |
79072805 |
492 | case '\004': /* ^D */ |
3280af22 |
493 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 |
494 | break; |
28f23441 |
495 | case '\005': /* ^E */ |
496 | #ifdef VMS |
497 | { |
498 | # include <descrip.h> |
499 | # include <starlet.h> |
500 | char msg[255]; |
501 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
502 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
503 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
504 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
505 | else |
506 | sv_setpv(sv,""); |
507 | } |
508 | #else |
88e89b8a |
509 | #ifdef OS2 |
fb73857a |
510 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
511 | sv_setnv(sv, (double)errno); |
512 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
513 | } else { |
017f25f1 |
514 | if (errno != errno_isOS2) { |
515 | int tmp = _syserrno(); |
516 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
517 | Perl_rc = tmp; |
518 | } |
fb73857a |
519 | sv_setnv(sv, (double)Perl_rc); |
520 | sv_setpv(sv, os2error(Perl_rc)); |
521 | } |
88e89b8a |
522 | #else |
22fae026 |
523 | #ifdef WIN32 |
524 | { |
525 | DWORD dwErr = GetLastError(); |
526 | sv_setnv(sv, (double)dwErr); |
527 | if (dwErr) |
76e3520e |
528 | { |
529 | #ifdef PERL_OBJECT |
530 | char *sMsg; |
531 | DWORD dwLen; |
532 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); |
533 | sv_setpvn(sv, sMsg, dwLen); |
534 | PerlProc_FreeBuf(sMsg); |
535 | #else |
22fae026 |
536 | win32_str_os_error(sv, dwErr); |
76e3520e |
537 | #endif |
538 | } |
22fae026 |
539 | else |
540 | sv_setpv(sv, ""); |
541 | SetLastError(dwErr); |
542 | } |
543 | #else |
946ec16e |
544 | sv_setnv(sv, (double)errno); |
28f23441 |
545 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
546 | #endif |
88e89b8a |
547 | #endif |
22fae026 |
548 | #endif |
946ec16e |
549 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
550 | break; |
79072805 |
551 | case '\006': /* ^F */ |
3280af22 |
552 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
553 | break; |
a0d0e21e |
554 | case '\010': /* ^H */ |
3280af22 |
555 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
556 | break; |
9d116dd7 |
557 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
558 | if (PL_inplace) |
559 | sv_setpv(sv, PL_inplace); |
79072805 |
560 | else |
3280af22 |
561 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
562 | break; |
28f23441 |
563 | case '\017': /* ^O */ |
3280af22 |
564 | sv_setpv(sv, PL_osname); |
28f23441 |
565 | break; |
79072805 |
566 | case '\020': /* ^P */ |
3280af22 |
567 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
568 | break; |
fb73857a |
569 | case '\023': /* ^S */ |
d58bf5aa |
570 | { |
571 | dTHR; |
3280af22 |
572 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa |
573 | SvOK_off(sv); |
3280af22 |
574 | else if (PL_in_eval) |
d58bf5aa |
575 | sv_setiv(sv, 1); |
576 | else |
577 | sv_setiv(sv, 0); |
578 | } |
fb73857a |
579 | break; |
79072805 |
580 | case '\024': /* ^T */ |
88e89b8a |
581 | #ifdef BIG_TIME |
6b88bc9c |
582 | sv_setnv(sv, PL_basetime); |
88e89b8a |
583 | #else |
3280af22 |
584 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
585 | #endif |
79072805 |
586 | break; |
587 | case '\027': /* ^W */ |
599cee73 |
588 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 |
589 | break; |
590 | case '1': case '2': case '3': case '4': |
591 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
592 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
593 | I32 s1, t1; |
594 | |
a863c7d1 |
595 | /* |
596 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
597 | * XXX Does the new way break anything? |
598 | */ |
599 | paren = atoi(mg->mg_ptr); |
79072805 |
600 | getparen: |
d9f97599 |
601 | if (paren <= rx->nparens && |
cf93c79d |
602 | (s1 = rx->startp[paren]) != -1 && |
603 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
604 | { |
cf93c79d |
605 | i = t1 - s1; |
606 | s = rx->subbeg + s1; |
13f57bf8 |
607 | getrx: |
748a9306 |
608 | if (i >= 0) { |
13f57bf8 |
609 | bool was_tainted; |
3280af22 |
610 | if (PL_tainting) { |
611 | was_tainted = PL_tainted; |
612 | PL_tainted = FALSE; |
13f57bf8 |
613 | } |
cf93c79d |
614 | sv_setpvn(sv, s, i); |
3280af22 |
615 | if (PL_tainting) |
616 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); |
748a9306 |
617 | break; |
618 | } |
79072805 |
619 | } |
79072805 |
620 | } |
3280af22 |
621 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
622 | break; |
623 | case '+': |
3280af22 |
624 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
625 | paren = rx->lastparen; |
a0d0e21e |
626 | if (paren) |
627 | goto getparen; |
79072805 |
628 | } |
3280af22 |
629 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
630 | break; |
631 | case '`': |
3280af22 |
632 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
633 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
634 | i = rx->startp[0]; |
13f57bf8 |
635 | goto getrx; |
79072805 |
636 | } |
79072805 |
637 | } |
3280af22 |
638 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
639 | break; |
640 | case '\'': |
3280af22 |
641 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
642 | if (rx->subbeg && rx->endp[0] != -1) { |
643 | s = rx->subbeg + rx->endp[0]; |
644 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
645 | goto getrx; |
79072805 |
646 | } |
79072805 |
647 | } |
3280af22 |
648 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
649 | break; |
650 | case '.': |
651 | #ifndef lint |
3280af22 |
652 | if (GvIO(PL_last_in_gv)) { |
653 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); |
79072805 |
654 | } |
655 | #endif |
656 | break; |
657 | case '?': |
809a5acc |
658 | { |
809a5acc |
659 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
660 | #ifdef COMPLEX_STATUS |
6b88bc9c |
661 | LvTARGOFF(sv) = PL_statusvalue; |
662 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
663 | #endif |
809a5acc |
664 | } |
79072805 |
665 | break; |
666 | case '^': |
3280af22 |
667 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
668 | if (s) |
669 | sv_setpv(sv,s); |
670 | else { |
3280af22 |
671 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
672 | sv_catpv(sv,"_TOP"); |
673 | } |
674 | break; |
675 | case '~': |
3280af22 |
676 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
677 | if (!s) |
3280af22 |
678 | s = GvENAME(PL_defoutgv); |
79072805 |
679 | sv_setpv(sv,s); |
680 | break; |
681 | #ifndef lint |
682 | case '=': |
3280af22 |
683 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
684 | break; |
685 | case '-': |
3280af22 |
686 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
687 | break; |
688 | case '%': |
3280af22 |
689 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
690 | break; |
691 | #endif |
692 | case ':': |
693 | break; |
694 | case '/': |
695 | break; |
696 | case '[': |
3280af22 |
697 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
698 | break; |
699 | case '|': |
3280af22 |
700 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
701 | break; |
702 | case ',': |
3280af22 |
703 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 |
704 | break; |
705 | case '\\': |
3280af22 |
706 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 |
707 | break; |
708 | case '#': |
3280af22 |
709 | sv_setpv(sv,PL_ofmt); |
79072805 |
710 | break; |
711 | case '!': |
a5f75d66 |
712 | #ifdef VMS |
946ec16e |
713 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
714 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
715 | #else |
88e89b8a |
716 | { |
717 | int saveerrno = errno; |
946ec16e |
718 | sv_setnv(sv, (double)errno); |
88e89b8a |
719 | #ifdef OS2 |
720 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
721 | else |
a5f75d66 |
722 | #endif |
2304df62 |
723 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
724 | errno = saveerrno; |
725 | } |
726 | #endif |
946ec16e |
727 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
728 | break; |
729 | case '<': |
3280af22 |
730 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
731 | break; |
732 | case '>': |
3280af22 |
733 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
734 | break; |
735 | case '(': |
3280af22 |
736 | sv_setiv(sv, (IV)PL_gid); |
737 | sv_setpvf(sv, "%Vd", (IV)PL_gid); |
79072805 |
738 | goto add_groups; |
739 | case ')': |
3280af22 |
740 | sv_setiv(sv, (IV)PL_egid); |
741 | sv_setpvf(sv, "%Vd", (IV)PL_egid); |
79072805 |
742 | add_groups: |
79072805 |
743 | #ifdef HAS_GETGROUPS |
79072805 |
744 | { |
a0d0e21e |
745 | Groups_t gary[NGROUPS]; |
79072805 |
746 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
747 | while (--i >= 0) |
fc36a67e |
748 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
749 | } |
750 | #endif |
29355cf7 |
751 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
752 | break; |
753 | case '*': |
754 | break; |
755 | case '0': |
756 | break; |
a863c7d1 |
757 | #ifdef USE_THREADS |
758 | case '@': |
38a03e6e |
759 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
760 | break; |
761 | #endif /* USE_THREADS */ |
79072805 |
762 | } |
a0d0e21e |
763 | return 0; |
79072805 |
764 | } |
765 | |
766 | int |
8ac85365 |
767 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 |
768 | { |
769 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
770 | |
771 | if (uf && uf->uf_val) |
772 | (*uf->uf_val)(uf->uf_index, sv); |
773 | return 0; |
774 | } |
775 | |
776 | int |
8ac85365 |
777 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 |
778 | { |
779 | register char *s; |
88e89b8a |
780 | char *ptr; |
5aabfad6 |
781 | STRLEN len, klen; |
a0d0e21e |
782 | I32 i; |
1e422769 |
783 | |
a0d0e21e |
784 | s = SvPV(sv,len); |
5aabfad6 |
785 | ptr = MgPV(mg,klen); |
88e89b8a |
786 | my_setenv(ptr, s); |
1e422769 |
787 | |
a0d0e21e |
788 | #ifdef DYNAMIC_ENV_FETCH |
789 | /* We just undefd an environment var. Is a replacement */ |
790 | /* waiting in the wings? */ |
791 | if (!len) { |
5aabfad6 |
792 | SV **valp; |
6b88bc9c |
793 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 |
794 | s = SvPV(*valp, len); |
a0d0e21e |
795 | } |
796 | #endif |
1e422769 |
797 | |
39e571d4 |
798 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
799 | /* And you'll never guess what the dog had */ |
800 | /* in its mouth... */ |
3280af22 |
801 | if (PL_tainting) { |
1e422769 |
802 | MgTAINTEDDIR_off(mg); |
803 | #ifdef VMS |
5aabfad6 |
804 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
805 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
806 | struct stat sbuf; |
807 | int i = 0, j = 0; |
808 | |
809 | do { /* DCL$PATH may be a search list */ |
810 | while (1) { /* as may dev portion of any element */ |
811 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
812 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
813 | cando_by_name(S_IWUSR,0,elt) ) { |
814 | MgTAINTEDDIR_on(mg); |
815 | return 0; |
816 | } |
817 | } |
818 | if ((cp = strchr(elt, ':')) != Nullch) |
819 | *cp = '\0'; |
820 | if (my_trnlnm(elt, eltbuf, j++)) |
821 | elt = eltbuf; |
822 | else |
823 | break; |
824 | } |
825 | j = 0; |
826 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
827 | } |
828 | #endif /* VMS */ |
5aabfad6 |
829 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
830 | char *strend = s + len; |
463ee0b2 |
831 | |
832 | while (s < strend) { |
96827780 |
833 | char tmpbuf[256]; |
1e422769 |
834 | struct stat st; |
96827780 |
835 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
836 | s, strend, ':', &i); |
463ee0b2 |
837 | s++; |
96827780 |
838 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
839 | || *tmpbuf != '/' |
c6ed36e1 |
840 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
841 | MgTAINTEDDIR_on(mg); |
1e422769 |
842 | return 0; |
843 | } |
463ee0b2 |
844 | } |
79072805 |
845 | } |
846 | } |
39e571d4 |
847 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
848 | |
79072805 |
849 | return 0; |
850 | } |
851 | |
852 | int |
8ac85365 |
853 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 |
854 | { |
2d8e6c8d |
855 | STRLEN n_a; |
856 | my_setenv(MgPV(mg,n_a),Nullch); |
85e6fe83 |
857 | return 0; |
858 | } |
859 | |
88e89b8a |
860 | int |
8ac85365 |
861 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a |
862 | { |
863 | #if defined(VMS) |
864 | die("Can't make list assignment to %%ENV on this system"); |
865 | #else |
d58bf5aa |
866 | dTHR; |
3280af22 |
867 | if (PL_localizing) { |
fb73857a |
868 | HE* entry; |
2d8e6c8d |
869 | STRLEN n_a; |
fb73857a |
870 | magic_clear_all_env(sv,mg); |
871 | hv_iterinit((HV*)sv); |
872 | while (entry = hv_iternext((HV*)sv)) { |
873 | I32 keylen; |
874 | my_setenv(hv_iterkey(entry, &keylen), |
2d8e6c8d |
875 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a |
876 | } |
877 | } |
878 | #endif |
879 | return 0; |
880 | } |
881 | |
882 | int |
8ac85365 |
883 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 |
884 | { |
3e3baf6d |
885 | #if defined(VMS) |
886 | die("Can't make list assignment to %%ENV on this system"); |
887 | #else |
f2517201 |
888 | # ifdef WIN32 |
3e3baf6d |
889 | char *envv = GetEnvironmentStrings(); |
890 | char *cur = envv; |
891 | STRLEN len; |
892 | while (*cur) { |
893 | char *end = strchr(cur,'='); |
894 | if (end && end != cur) { |
895 | *end = '\0'; |
896 | my_setenv(cur,Nullch); |
897 | *end = '='; |
ac5c734f |
898 | cur = end + strlen(end+1)+2; |
3e3baf6d |
899 | } |
900 | else if ((len = strlen(cur))) |
901 | cur += len+1; |
902 | } |
903 | FreeEnvironmentStrings(envv); |
f2517201 |
904 | # else |
905 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 |
906 | I32 i; |
907 | |
3280af22 |
908 | if (environ == PL_origenviron) |
f2517201 |
909 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 |
910 | else |
911 | for (i = 0; environ[i]; i++) |
f2517201 |
912 | safesysfree(environ[i]); |
913 | # endif /* PERL_USE_SAFE_PUTENV */ |
914 | |
66b1d557 |
915 | environ[0] = Nullch; |
916 | |
f2517201 |
917 | # endif /* WIN32 */ |
918 | #endif /* VMS */ |
3e3baf6d |
919 | return 0; |
66b1d557 |
920 | } |
921 | |
922 | int |
8ac85365 |
923 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a |
924 | { |
925 | I32 i; |
2d8e6c8d |
926 | STRLEN n_a; |
88e89b8a |
927 | /* Are we fetching a signal entry? */ |
2d8e6c8d |
928 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
929 | if (i) { |
22c35a8c |
930 | if(PL_psig_ptr[i]) |
931 | sv_setsv(sv,PL_psig_ptr[i]); |
88e89b8a |
932 | else { |
ff68c719 |
933 | Sighandler_t sigstate = rsignal_state(i); |
934 | |
88e89b8a |
935 | /* cache state so we don't fetch it again */ |
ff68c719 |
936 | if(sigstate == SIG_IGN) |
88e89b8a |
937 | sv_setpv(sv,"IGNORE"); |
938 | else |
3280af22 |
939 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c |
940 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
941 | SvTEMP_off(sv); |
942 | } |
943 | } |
944 | return 0; |
945 | } |
946 | int |
8ac85365 |
947 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a |
948 | { |
949 | I32 i; |
2d8e6c8d |
950 | STRLEN n_a; |
88e89b8a |
951 | /* Are we clearing a signal entry? */ |
2d8e6c8d |
952 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
953 | if (i) { |
22c35a8c |
954 | if(PL_psig_ptr[i]) { |
955 | SvREFCNT_dec(PL_psig_ptr[i]); |
956 | PL_psig_ptr[i]=0; |
88e89b8a |
957 | } |
22c35a8c |
958 | if(PL_psig_name[i]) { |
959 | SvREFCNT_dec(PL_psig_name[i]); |
960 | PL_psig_name[i]=0; |
88e89b8a |
961 | } |
962 | } |
963 | return 0; |
964 | } |
3d37d572 |
965 | |
85e6fe83 |
966 | int |
8ac85365 |
967 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 |
968 | { |
11343788 |
969 | dTHR; |
79072805 |
970 | register char *s; |
971 | I32 i; |
748a9306 |
972 | SV** svp; |
e72dc28c |
973 | STRLEN len; |
a0d0e21e |
974 | |
e72dc28c |
975 | s = MgPV(mg,len); |
748a9306 |
976 | if (*s == '_') { |
977 | if (strEQ(s,"__DIE__")) |
3280af22 |
978 | svp = &PL_diehook; |
748a9306 |
979 | else if (strEQ(s,"__WARN__")) |
3280af22 |
980 | svp = &PL_warnhook; |
748a9306 |
981 | else if (strEQ(s,"__PARSE__")) |
3280af22 |
982 | svp = &PL_parsehook; |
748a9306 |
983 | else |
984 | croak("No such hook: %s", s); |
985 | i = 0; |
4633a7c4 |
986 | if (*svp) { |
987 | SvREFCNT_dec(*svp); |
988 | *svp = 0; |
989 | } |
748a9306 |
990 | } |
991 | else { |
992 | i = whichsig(s); /* ...no, a brick */ |
993 | if (!i) { |
599cee73 |
994 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
995 | warner(WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 |
996 | return 0; |
997 | } |
22c35a8c |
998 | SvREFCNT_dec(PL_psig_name[i]); |
999 | SvREFCNT_dec(PL_psig_ptr[i]); |
1000 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
1001 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c |
1002 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c |
1003 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 |
1004 | } |
a0d0e21e |
1005 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
1006 | if (i) |
3280af22 |
1007 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
1008 | else |
1009 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
1010 | return 0; |
1011 | } |
e72dc28c |
1012 | s = SvPV_force(sv,len); |
748a9306 |
1013 | if (strEQ(s,"IGNORE")) { |
1014 | if (i) |
ff68c719 |
1015 | (void)rsignal(i, SIG_IGN); |
748a9306 |
1016 | else |
1017 | *svp = 0; |
1018 | } |
1019 | else if (strEQ(s,"DEFAULT") || !*s) { |
1020 | if (i) |
ff68c719 |
1021 | (void)rsignal(i, SIG_DFL); |
748a9306 |
1022 | else |
1023 | *svp = 0; |
1024 | } |
79072805 |
1025 | else { |
5aabfad6 |
1026 | /* |
1027 | * We should warn if HINT_STRICT_REFS, but without |
1028 | * access to a known hint bit in a known OP, we can't |
1029 | * tell whether HINT_STRICT_REFS is in force or not. |
1030 | */ |
46fc3d4c |
1031 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c |
1032 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 |
1033 | if (i) |
3280af22 |
1034 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
1035 | else |
1036 | *svp = SvREFCNT_inc(sv); |
79072805 |
1037 | } |
1038 | return 0; |
1039 | } |
1040 | |
1041 | int |
8ac85365 |
1042 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 |
1043 | { |
3280af22 |
1044 | PL_sub_generation++; |
463ee0b2 |
1045 | return 0; |
1046 | } |
1047 | |
1048 | int |
8ac85365 |
1049 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 |
1050 | { |
a0d0e21e |
1051 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
1052 | PL_amagic_generation++; |
463ee0b2 |
1053 | |
a0d0e21e |
1054 | return 0; |
1055 | } |
463ee0b2 |
1056 | |
946ec16e |
1057 | int |
6ff81951 |
1058 | magic_getnkeys(SV *sv, MAGIC *mg) |
1059 | { |
1060 | HV *hv = (HV*)LvTARG(sv); |
1061 | HE *entry; |
1062 | I32 i = 0; |
1063 | |
1064 | if (hv) { |
1065 | (void) hv_iterinit(hv); |
33c27489 |
1066 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 |
1067 | i = HvKEYS(hv); |
1068 | else { |
1069 | /*SUPPRESS 560*/ |
1070 | while (entry = hv_iternext(hv)) { |
1071 | i++; |
1072 | } |
1073 | } |
1074 | } |
1075 | |
1076 | sv_setiv(sv, (IV)i); |
1077 | return 0; |
1078 | } |
1079 | |
1080 | int |
8ac85365 |
1081 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e |
1082 | { |
1083 | if (LvTARG(sv)) { |
1084 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1085 | } |
1086 | return 0; |
93965878 |
1087 | } |
946ec16e |
1088 | |
e336de0d |
1089 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1090 | STATIC int |
33c27489 |
1091 | magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1092 | { |
1093 | dSP; |
463ee0b2 |
1094 | |
924508f0 |
1095 | PUSHMARK(SP); |
1096 | EXTEND(SP, n); |
33c27489 |
1097 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 |
1098 | if (n > 1) { |
1099 | if (mg->mg_ptr) { |
565764a8 |
1100 | if (mg->mg_len >= 0) |
79cb57f6 |
1101 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 |
1102 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1103 | PUSHs((SV*)mg->mg_ptr); |
1104 | } |
1105 | else if (mg->mg_type == 'p') { |
565764a8 |
1106 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1107 | } |
1108 | } |
1109 | if (n > 2) { |
1110 | PUSHs(val); |
88e89b8a |
1111 | } |
463ee0b2 |
1112 | PUTBACK; |
1113 | |
93965878 |
1114 | return perl_call_method(meth, flags); |
946ec16e |
1115 | } |
1116 | |
76e3520e |
1117 | STATIC int |
8ac85365 |
1118 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1119 | { |
1120 | dSP; |
463ee0b2 |
1121 | |
a0d0e21e |
1122 | ENTER; |
1123 | SAVETMPS; |
e788e7d3 |
1124 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1125 | |
33c27489 |
1126 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1127 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1128 | } |
463ee0b2 |
1129 | |
d3acc0f7 |
1130 | POPSTACK; |
a0d0e21e |
1131 | FREETMPS; |
1132 | LEAVE; |
1133 | return 0; |
1134 | } |
463ee0b2 |
1135 | |
a0d0e21e |
1136 | int |
8ac85365 |
1137 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e |
1138 | { |
1139 | magic_methpack(sv,mg,"FETCH"); |
1140 | if (mg->mg_ptr) |
1141 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1142 | return 0; |
1143 | } |
1144 | |
1145 | int |
8ac85365 |
1146 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d |
1147 | { |
1148 | dSP; |
a60c0954 |
1149 | ENTER; |
e788e7d3 |
1150 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1151 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1152 | POPSTACK; |
a60c0954 |
1153 | LEAVE; |
463ee0b2 |
1154 | return 0; |
1155 | } |
1156 | |
1157 | int |
8ac85365 |
1158 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 |
1159 | { |
a0d0e21e |
1160 | return magic_methpack(sv,mg,"DELETE"); |
1161 | } |
463ee0b2 |
1162 | |
93965878 |
1163 | |
1164 | U32 |
1165 | magic_sizepack(SV *sv, MAGIC *mg) |
1166 | { |
e336de0d |
1167 | dSP; |
93965878 |
1168 | U32 retval = 0; |
1169 | |
1170 | ENTER; |
1171 | SAVETMPS; |
e788e7d3 |
1172 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1173 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1174 | sv = *PL_stack_sp--; |
a60c0954 |
1175 | retval = (U32) SvIV(sv)-1; |
93965878 |
1176 | } |
d3acc0f7 |
1177 | POPSTACK; |
93965878 |
1178 | FREETMPS; |
1179 | LEAVE; |
1180 | return retval; |
1181 | } |
1182 | |
8ac85365 |
1183 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e |
1184 | { |
1185 | dSP; |
463ee0b2 |
1186 | |
e336de0d |
1187 | ENTER; |
e788e7d3 |
1188 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1189 | PUSHMARK(SP); |
33c27489 |
1190 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1191 | PUTBACK; |
a0d0e21e |
1192 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1193 | POPSTACK; |
a60c0954 |
1194 | LEAVE; |
463ee0b2 |
1195 | return 0; |
1196 | } |
1197 | |
1198 | int |
8ac85365 |
1199 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1200 | { |
463ee0b2 |
1201 | dSP; |
a0d0e21e |
1202 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1203 | |
1204 | ENTER; |
a0d0e21e |
1205 | SAVETMPS; |
e788e7d3 |
1206 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1207 | PUSHMARK(SP); |
1208 | EXTEND(SP, 2); |
33c27489 |
1209 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1210 | if (SvOK(key)) |
1211 | PUSHs(key); |
1212 | PUTBACK; |
1213 | |
a0d0e21e |
1214 | if (perl_call_method(meth, G_SCALAR)) |
3280af22 |
1215 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1216 | |
d3acc0f7 |
1217 | POPSTACK; |
a0d0e21e |
1218 | FREETMPS; |
1219 | LEAVE; |
79072805 |
1220 | return 0; |
1221 | } |
1222 | |
1223 | int |
8ac85365 |
1224 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e |
1225 | { |
1226 | return magic_methpack(sv,mg,"EXISTS"); |
1227 | } |
1228 | |
1229 | int |
8ac85365 |
1230 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 |
1231 | { |
11343788 |
1232 | dTHR; |
79072805 |
1233 | OP *o; |
1234 | I32 i; |
1235 | GV* gv; |
1236 | SV** svp; |
2d8e6c8d |
1237 | STRLEN n_a; |
79072805 |
1238 | |
3280af22 |
1239 | gv = PL_DBline; |
79072805 |
1240 | i = SvTRUE(sv); |
188ea221 |
1241 | svp = av_fetch(GvAV(gv), |
2d8e6c8d |
1242 | atoi(MgPV(mg,n_a)), FALSE); |
8990e307 |
1243 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
1244 | o->op_private = i; |
79072805 |
1245 | else |
1246 | warn("Can't break at that line\n"); |
1247 | return 0; |
1248 | } |
1249 | |
1250 | int |
8ac85365 |
1251 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 |
1252 | { |
0f15f207 |
1253 | dTHR; |
3280af22 |
1254 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 |
1255 | return 0; |
1256 | } |
1257 | |
1258 | int |
8ac85365 |
1259 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 |
1260 | { |
0f15f207 |
1261 | dTHR; |
3280af22 |
1262 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e |
1263 | return 0; |
1264 | } |
1265 | |
1266 | int |
8ac85365 |
1267 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1268 | { |
1269 | SV* lsv = LvTARG(sv); |
1270 | |
1271 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1272 | mg = mg_find(lsv, 'g'); |
565764a8 |
1273 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1274 | dTHR; |
a0ed51b3 |
1275 | I32 i = mg->mg_len; |
1276 | if (IN_UTF8) |
1277 | sv_pos_b2u(lsv, &i); |
1278 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1279 | return 0; |
1280 | } |
1281 | } |
1282 | (void)SvOK_off(sv); |
1283 | return 0; |
1284 | } |
1285 | |
1286 | int |
8ac85365 |
1287 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1288 | { |
1289 | SV* lsv = LvTARG(sv); |
1290 | SSize_t pos; |
1291 | STRLEN len; |
a0ed51b3 |
1292 | STRLEN ulen; |
c485e607 |
1293 | dTHR; |
a0d0e21e |
1294 | |
1295 | mg = 0; |
1296 | |
1297 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1298 | mg = mg_find(lsv, 'g'); |
1299 | if (!mg) { |
1300 | if (!SvOK(sv)) |
1301 | return 0; |
1302 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1303 | mg = mg_find(lsv, 'g'); |
1304 | } |
1305 | else if (!SvOK(sv)) { |
565764a8 |
1306 | mg->mg_len = -1; |
a0d0e21e |
1307 | return 0; |
1308 | } |
1309 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1310 | |
c485e607 |
1311 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1312 | |
1313 | if (IN_UTF8) { |
1314 | ulen = sv_len_utf8(lsv); |
1315 | if (ulen) |
1316 | len = ulen; |
1317 | else |
1318 | ulen = 0; |
1319 | } |
1320 | |
a0d0e21e |
1321 | if (pos < 0) { |
1322 | pos += len; |
1323 | if (pos < 0) |
1324 | pos = 0; |
1325 | } |
1326 | else if (pos > len) |
1327 | pos = len; |
a0ed51b3 |
1328 | |
1329 | if (ulen) { |
1330 | I32 p = pos; |
1331 | sv_pos_u2b(lsv, &p, 0); |
1332 | pos = p; |
1333 | } |
1334 | |
565764a8 |
1335 | mg->mg_len = pos; |
71be2cbc |
1336 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1337 | |
79072805 |
1338 | return 0; |
1339 | } |
1340 | |
1341 | int |
8ac85365 |
1342 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 |
1343 | { |
8646b087 |
1344 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1345 | SvFAKE_off(sv); |
946ec16e |
1346 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1347 | SvFAKE_on(sv); |
1348 | } |
1349 | else |
946ec16e |
1350 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1351 | return 0; |
1352 | } |
1353 | |
1354 | int |
8ac85365 |
1355 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 |
1356 | { |
1357 | register char *s; |
1358 | GV* gv; |
2d8e6c8d |
1359 | STRLEN n_a; |
79072805 |
1360 | |
1361 | if (!SvOK(sv)) |
1362 | return 0; |
2d8e6c8d |
1363 | s = SvPV(sv, n_a); |
79072805 |
1364 | if (*s == '*' && s[1]) |
1365 | s++; |
85e6fe83 |
1366 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1367 | if (sv == (SV*)gv) |
1368 | return 0; |
1369 | if (GvGP(sv)) |
88e89b8a |
1370 | gp_free((GV*)sv); |
79072805 |
1371 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1372 | return 0; |
1373 | } |
1374 | |
1375 | int |
6ff81951 |
1376 | magic_getsubstr(SV *sv, MAGIC *mg) |
1377 | { |
1378 | STRLEN len; |
1379 | SV *lsv = LvTARG(sv); |
1380 | char *tmps = SvPV(lsv,len); |
1381 | I32 offs = LvTARGOFF(sv); |
1382 | I32 rem = LvTARGLEN(sv); |
1383 | |
1384 | if (offs > len) |
1385 | offs = len; |
1386 | if (rem + offs > len) |
1387 | rem = len - offs; |
1388 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
1389 | return 0; |
1390 | } |
1391 | |
1392 | int |
8ac85365 |
1393 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 |
1394 | { |
8990e307 |
1395 | STRLEN len; |
1396 | char *tmps = SvPV(sv,len); |
1397 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1398 | return 0; |
1399 | } |
1400 | |
1401 | int |
8ac85365 |
1402 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1403 | { |
a863c7d1 |
1404 | dTHR; |
565764a8 |
1405 | TAINT_IF((mg->mg_len & 1) || |
1406 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1407 | return 0; |
1408 | } |
1409 | |
1410 | int |
8ac85365 |
1411 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1412 | { |
11343788 |
1413 | dTHR; |
3280af22 |
1414 | if (PL_localizing) { |
1415 | if (PL_localizing == 1) |
565764a8 |
1416 | mg->mg_len <<= 1; |
748a9306 |
1417 | else |
565764a8 |
1418 | mg->mg_len >>= 1; |
a0d0e21e |
1419 | } |
3280af22 |
1420 | else if (PL_tainted) |
565764a8 |
1421 | mg->mg_len |= 1; |
748a9306 |
1422 | else |
565764a8 |
1423 | mg->mg_len &= ~1; |
463ee0b2 |
1424 | return 0; |
1425 | } |
1426 | |
1427 | int |
6ff81951 |
1428 | magic_getvec(SV *sv, MAGIC *mg) |
1429 | { |
1430 | SV *lsv = LvTARG(sv); |
1431 | unsigned char *s; |
1432 | unsigned long retnum; |
1433 | STRLEN lsvlen; |
1434 | I32 len; |
1435 | I32 offset; |
1436 | I32 size; |
1437 | |
1438 | if (!lsv) { |
1439 | SvOK_off(sv); |
1440 | return 0; |
1441 | } |
1442 | s = (unsigned char *) SvPV(lsv, lsvlen); |
1443 | offset = LvTARGOFF(sv); |
1444 | size = LvTARGLEN(sv); |
1445 | len = (offset + size + 7) / 8; |
1446 | |
1447 | /* Copied from pp_vec() */ |
1448 | |
1449 | if (len > lsvlen) { |
1450 | if (size <= 8) |
1451 | retnum = 0; |
1452 | else { |
1453 | offset >>= 3; |
1454 | if (size == 16) { |
1455 | if (offset >= lsvlen) |
1456 | retnum = 0; |
1457 | else |
1458 | retnum = (unsigned long) s[offset] << 8; |
1459 | } |
1460 | else if (size == 32) { |
1461 | if (offset >= lsvlen) |
1462 | retnum = 0; |
1463 | else if (offset + 1 >= lsvlen) |
1464 | retnum = (unsigned long) s[offset] << 24; |
1465 | else if (offset + 2 >= lsvlen) |
1466 | retnum = ((unsigned long) s[offset] << 24) + |
1467 | ((unsigned long) s[offset + 1] << 16); |
1468 | else |
1469 | retnum = ((unsigned long) s[offset] << 24) + |
1470 | ((unsigned long) s[offset + 1] << 16) + |
1471 | (s[offset + 2] << 8); |
1472 | } |
1473 | } |
1474 | } |
1475 | else if (size < 8) |
1476 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); |
1477 | else { |
1478 | offset >>= 3; |
1479 | if (size == 8) |
1480 | retnum = s[offset]; |
1481 | else if (size == 16) |
1482 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; |
1483 | else if (size == 32) |
1484 | retnum = ((unsigned long) s[offset] << 24) + |
1485 | ((unsigned long) s[offset + 1] << 16) + |
1486 | (s[offset + 2] << 8) + s[offset+3]; |
1487 | } |
1488 | |
1489 | sv_setuv(sv, (UV)retnum); |
1490 | return 0; |
1491 | } |
1492 | |
1493 | int |
8ac85365 |
1494 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 |
1495 | { |
1496 | do_vecset(sv); /* XXX slurp this routine */ |
1497 | return 0; |
1498 | } |
1499 | |
1500 | int |
8ac85365 |
1501 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1502 | { |
71be2cbc |
1503 | SV *targ = Nullsv; |
5f05dabc |
1504 | if (LvTARGLEN(sv)) { |
68dc0745 |
1505 | if (mg->mg_obj) { |
74e13ce4 |
1506 | SV *ahv = LvTARG(sv); |
1507 | if (SvTYPE(ahv) == SVt_PVHV) { |
1508 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1509 | if (he) |
1510 | targ = HeVAL(he); |
1511 | } |
1512 | else { |
1513 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); |
1514 | if (svp) |
1515 | targ = *svp; |
1516 | } |
68dc0745 |
1517 | } |
1518 | else { |
3c78fafa |
1519 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1520 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1521 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1522 | } |
3280af22 |
1523 | if (targ && targ != &PL_sv_undef) { |
e858de61 |
1524 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1525 | /* somebody else defined it for us */ |
1526 | SvREFCNT_dec(LvTARG(sv)); |
1527 | LvTARG(sv) = SvREFCNT_inc(targ); |
1528 | LvTARGLEN(sv) = 0; |
1529 | SvREFCNT_dec(mg->mg_obj); |
1530 | mg->mg_obj = Nullsv; |
1531 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1532 | } |
5f05dabc |
1533 | } |
71be2cbc |
1534 | else |
1535 | targ = LvTARG(sv); |
3280af22 |
1536 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
1537 | return 0; |
1538 | } |
1539 | |
1540 | int |
8ac85365 |
1541 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc |
1542 | { |
1543 | if (LvTARGLEN(sv)) |
68dc0745 |
1544 | vivify_defelem(sv); |
1545 | if (LvTARG(sv)) { |
5f05dabc |
1546 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1547 | SvSETMAGIC(LvTARG(sv)); |
1548 | } |
5f05dabc |
1549 | return 0; |
1550 | } |
1551 | |
71be2cbc |
1552 | void |
8ac85365 |
1553 | vivify_defelem(SV *sv) |
71be2cbc |
1554 | { |
e858de61 |
1555 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 |
1556 | MAGIC *mg; |
1557 | SV *value = Nullsv; |
71be2cbc |
1558 | |
68dc0745 |
1559 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1560 | return; |
68dc0745 |
1561 | if (mg->mg_obj) { |
74e13ce4 |
1562 | SV *ahv = LvTARG(sv); |
2d8e6c8d |
1563 | STRLEN n_a; |
74e13ce4 |
1564 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 |
1565 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1566 | if (he) |
1567 | value = HeVAL(he); |
1568 | } |
1569 | else { |
af7f9c15 |
1570 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1571 | if (svp) |
1572 | value = *svp; |
1573 | } |
3280af22 |
1574 | if (!value || value == &PL_sv_undef) |
2d8e6c8d |
1575 | croak(PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc |
1576 | } |
68dc0745 |
1577 | else { |
1578 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1579 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1580 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1581 | else { |
1582 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
1583 | if (!svp || (value = *svp) == &PL_sv_undef) |
22c35a8c |
1584 | croak(PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 |
1585 | } |
1586 | } |
3e3baf6d |
1587 | (void)SvREFCNT_inc(value); |
68dc0745 |
1588 | SvREFCNT_dec(LvTARG(sv)); |
1589 | LvTARG(sv) = value; |
71be2cbc |
1590 | LvTARGLEN(sv) = 0; |
68dc0745 |
1591 | SvREFCNT_dec(mg->mg_obj); |
1592 | mg->mg_obj = Nullsv; |
1593 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1594 | } |
1595 | |
1596 | int |
810b8aa5 |
1597 | magic_killbackrefs(SV *sv, MAGIC *mg) |
1598 | { |
1599 | AV *av = (AV*)mg->mg_obj; |
1600 | SV **svp = AvARRAY(av); |
1601 | I32 i = AvFILLp(av); |
1602 | while (i >= 0) { |
1603 | if (svp[i] && svp[i] != &PL_sv_undef) { |
1604 | if (!SvWEAKREF(svp[i])) |
1605 | croak("panic: magic_killbackrefs"); |
1606 | /* XXX Should we check that it hasn't changed? */ |
1607 | SvRV(svp[i]) = 0; |
1608 | SvOK_off(svp[i]); |
1609 | SvWEAKREF_off(svp[i]); |
1610 | svp[i] = &PL_sv_undef; |
1611 | } |
1612 | i--; |
1613 | } |
1614 | return 0; |
1615 | } |
1616 | |
1617 | int |
8ac85365 |
1618 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 |
1619 | { |
565764a8 |
1620 | mg->mg_len = -1; |
c6496cc7 |
1621 | SvSCREAM_off(sv); |
93a17b20 |
1622 | return 0; |
1623 | } |
1624 | |
1625 | int |
8ac85365 |
1626 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 |
1627 | { |
463ee0b2 |
1628 | sv_unmagic(sv, 'B'); |
79072805 |
1629 | SvVALID_off(sv); |
1630 | return 0; |
1631 | } |
1632 | |
1633 | int |
8ac85365 |
1634 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff |
1635 | { |
1636 | sv_unmagic(sv, 'f'); |
1637 | SvCOMPILED_off(sv); |
1638 | return 0; |
1639 | } |
1640 | |
1641 | int |
8ac85365 |
1642 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 |
1643 | { |
1644 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1645 | |
1646 | if (uf && uf->uf_set) |
1647 | (*uf->uf_set)(uf->uf_index, sv); |
1648 | return 0; |
1649 | } |
1650 | |
c277df42 |
1651 | int |
1652 | magic_freeregexp(SV *sv, MAGIC *mg) |
1653 | { |
1654 | regexp *re = (regexp *)mg->mg_obj; |
1655 | ReREFCNT_dec(re); |
1656 | return 0; |
1657 | } |
1658 | |
7a4c00b4 |
1659 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1660 | int |
8ac85365 |
1661 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 |
1662 | { |
1663 | /* |
838b5b74 |
1664 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 |
1665 | * and vanished with a faint plop. |
1666 | */ |
7a4c00b4 |
1667 | if (mg->mg_ptr) { |
1668 | Safefree(mg->mg_ptr); |
1669 | mg->mg_ptr = NULL; |
565764a8 |
1670 | mg->mg_len = -1; |
7a4c00b4 |
1671 | } |
bbce6d69 |
1672 | return 0; |
1673 | } |
7a4c00b4 |
1674 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1675 | |
1676 | int |
8ac85365 |
1677 | magic_set(SV *sv, MAGIC *mg) |
79072805 |
1678 | { |
11343788 |
1679 | dTHR; |
79072805 |
1680 | register char *s; |
1681 | I32 i; |
8990e307 |
1682 | STRLEN len; |
79072805 |
1683 | switch (*mg->mg_ptr) { |
748a9306 |
1684 | case '\001': /* ^A */ |
3280af22 |
1685 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
1686 | break; |
599cee73 |
1687 | case '\002': /* ^B */ |
1688 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1689 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) |
e24b16f9 |
1690 | PL_compiling.cop_warnings = WARN_ALL; |
599cee73 |
1691 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 |
1692 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 |
1693 | else { |
e24b16f9 |
1694 | if (PL_compiling.cop_warnings != WARN_NONE && |
1695 | PL_compiling.cop_warnings != WARN_ALL) |
1696 | sv_setsv(PL_compiling.cop_warnings, sv); |
599cee73 |
1697 | else |
e24b16f9 |
1698 | PL_compiling.cop_warnings = newSVsv(sv) ; |
599cee73 |
1699 | } |
1700 | } |
1701 | break; |
49460fe6 |
1702 | |
1703 | case '\003': /* ^C */ |
1704 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1705 | break; |
1706 | |
79072805 |
1707 | case '\004': /* ^D */ |
3280af22 |
1708 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1709 | DEBUG_x(dump_all()); |
1710 | break; |
28f23441 |
1711 | case '\005': /* ^E */ |
1712 | #ifdef VMS |
1713 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1714 | #else |
22fae026 |
1715 | #ifdef WIN32 |
1716 | SetLastError( SvIV(sv) ); |
1717 | #else |
f86702cc |
1718 | /* will anyone ever use this? */ |
1719 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1720 | #endif |
22fae026 |
1721 | #endif |
28f23441 |
1722 | break; |
79072805 |
1723 | case '\006': /* ^F */ |
3280af22 |
1724 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1725 | break; |
a0d0e21e |
1726 | case '\010': /* ^H */ |
3280af22 |
1727 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
1728 | break; |
9d116dd7 |
1729 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
1730 | if (PL_inplace) |
1731 | Safefree(PL_inplace); |
79072805 |
1732 | if (SvOK(sv)) |
2d8e6c8d |
1733 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 |
1734 | else |
3280af22 |
1735 | PL_inplace = Nullch; |
79072805 |
1736 | break; |
28f23441 |
1737 | case '\017': /* ^O */ |
3280af22 |
1738 | if (PL_osname) |
1739 | Safefree(PL_osname); |
28f23441 |
1740 | if (SvOK(sv)) |
2d8e6c8d |
1741 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 |
1742 | else |
3280af22 |
1743 | PL_osname = Nullch; |
28f23441 |
1744 | break; |
79072805 |
1745 | case '\020': /* ^P */ |
3280af22 |
1746 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1747 | break; |
1748 | case '\024': /* ^T */ |
88e89b8a |
1749 | #ifdef BIG_TIME |
6b88bc9c |
1750 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
1751 | #else |
3280af22 |
1752 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1753 | #endif |
79072805 |
1754 | break; |
1755 | case '\027': /* ^W */ |
599cee73 |
1756 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1757 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1758 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; |
1759 | } |
79072805 |
1760 | break; |
1761 | case '.': |
3280af22 |
1762 | if (PL_localizing) { |
1763 | if (PL_localizing == 1) |
1764 | save_sptr((SV**)&PL_last_in_gv); |
748a9306 |
1765 | } |
3280af22 |
1766 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1767 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); |
79072805 |
1768 | break; |
1769 | case '^': |
3280af22 |
1770 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1771 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1772 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1773 | break; |
1774 | case '~': |
3280af22 |
1775 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1776 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1777 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1778 | break; |
1779 | case '=': |
3280af22 |
1780 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1781 | break; |
1782 | case '-': |
3280af22 |
1783 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1784 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1785 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
1786 | break; |
1787 | case '%': |
3280af22 |
1788 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1789 | break; |
1790 | case '|': |
4b65379b |
1791 | { |
3280af22 |
1792 | IO *io = GvIOp(PL_defoutgv); |
4b65379b |
1793 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1794 | IoFLAGS(io) &= ~IOf_FLUSH; |
1795 | else { |
1796 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1797 | PerlIO *ofp = IoOFP(io); |
1798 | if (ofp) |
1799 | (void)PerlIO_flush(ofp); |
1800 | IoFLAGS(io) |= IOf_FLUSH; |
1801 | } |
1802 | } |
79072805 |
1803 | } |
1804 | break; |
1805 | case '*': |
463ee0b2 |
1806 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 |
1807 | PL_multiline = (i != 0); |
79072805 |
1808 | break; |
1809 | case '/': |
3280af22 |
1810 | SvREFCNT_dec(PL_nrs); |
1811 | PL_nrs = newSVsv(sv); |
1812 | SvREFCNT_dec(PL_rs); |
1813 | PL_rs = SvREFCNT_inc(PL_nrs); |
79072805 |
1814 | break; |
1815 | case '\\': |
3280af22 |
1816 | if (PL_ors) |
1817 | Safefree(PL_ors); |
e3c19b7b |
1818 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 |
1819 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b |
1820 | else { |
3280af22 |
1821 | PL_ors = Nullch; |
1822 | PL_orslen = 0; |
e3c19b7b |
1823 | } |
79072805 |
1824 | break; |
1825 | case ',': |
3280af22 |
1826 | if (PL_ofs) |
1827 | Safefree(PL_ofs); |
1828 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); |
79072805 |
1829 | break; |
1830 | case '#': |
3280af22 |
1831 | if (PL_ofmt) |
1832 | Safefree(PL_ofmt); |
2d8e6c8d |
1833 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 |
1834 | break; |
1835 | case '[': |
3280af22 |
1836 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1837 | break; |
1838 | case '?': |
ff0cee69 |
1839 | #ifdef COMPLEX_STATUS |
6b88bc9c |
1840 | if (PL_localizing == 2) { |
1841 | PL_statusvalue = LvTARGOFF(sv); |
1842 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
1843 | } |
1844 | else |
1845 | #endif |
1846 | #ifdef VMSISH_STATUS |
1847 | if (VMSISH_STATUS) |
1848 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1849 | else |
1850 | #endif |
1851 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1852 | break; |
1853 | case '!': |
78987ded |
1854 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc |
1855 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1856 | break; |
1857 | case '<': |
3280af22 |
1858 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1859 | if (PL_delaymagic) { |
1860 | PL_delaymagic |= DM_RUID; |
79072805 |
1861 | break; /* don't do magic till later */ |
1862 | } |
1863 | #ifdef HAS_SETRUID |
b28d0864 |
1864 | (void)setruid((Uid_t)PL_uid); |
79072805 |
1865 | #else |
1866 | #ifdef HAS_SETREUID |
3280af22 |
1867 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
1868 | #else |
85e6fe83 |
1869 | #ifdef HAS_SETRESUID |
b28d0864 |
1870 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1871 | #else |
b28d0864 |
1872 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1873 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
1874 | else { |
b28d0864 |
1875 | PL_uid = (I32)PerlProc_getuid(); |
463ee0b2 |
1876 | croak("setruid() not implemented"); |
a0d0e21e |
1877 | } |
79072805 |
1878 | #endif |
1879 | #endif |
85e6fe83 |
1880 | #endif |
3280af22 |
1881 | PL_uid = (I32)PerlProc_getuid(); |
1882 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1883 | break; |
1884 | case '>': |
3280af22 |
1885 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1886 | if (PL_delaymagic) { |
1887 | PL_delaymagic |= DM_EUID; |
79072805 |
1888 | break; /* don't do magic till later */ |
1889 | } |
1890 | #ifdef HAS_SETEUID |
3280af22 |
1891 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
1892 | #else |
1893 | #ifdef HAS_SETREUID |
b28d0864 |
1894 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
1895 | #else |
1896 | #ifdef HAS_SETRESUID |
6b88bc9c |
1897 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
1898 | #else |
b28d0864 |
1899 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1900 | PerlProc_setuid(PL_euid); |
a0d0e21e |
1901 | else { |
b28d0864 |
1902 | PL_euid = (I32)PerlProc_geteuid(); |
463ee0b2 |
1903 | croak("seteuid() not implemented"); |
a0d0e21e |
1904 | } |
79072805 |
1905 | #endif |
1906 | #endif |
85e6fe83 |
1907 | #endif |
3280af22 |
1908 | PL_euid = (I32)PerlProc_geteuid(); |
1909 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1910 | break; |
1911 | case '(': |
3280af22 |
1912 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1913 | if (PL_delaymagic) { |
1914 | PL_delaymagic |= DM_RGID; |
79072805 |
1915 | break; /* don't do magic till later */ |
1916 | } |
1917 | #ifdef HAS_SETRGID |
b28d0864 |
1918 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
1919 | #else |
1920 | #ifdef HAS_SETREGID |
3280af22 |
1921 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
1922 | #else |
1923 | #ifdef HAS_SETRESGID |
b28d0864 |
1924 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1925 | #else |
b28d0864 |
1926 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1927 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
1928 | else { |
b28d0864 |
1929 | PL_gid = (I32)PerlProc_getgid(); |
463ee0b2 |
1930 | croak("setrgid() not implemented"); |
748a9306 |
1931 | } |
79072805 |
1932 | #endif |
1933 | #endif |
85e6fe83 |
1934 | #endif |
3280af22 |
1935 | PL_gid = (I32)PerlProc_getgid(); |
1936 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1937 | break; |
1938 | case ')': |
5cd24f17 |
1939 | #ifdef HAS_SETGROUPS |
1940 | { |
2d8e6c8d |
1941 | char *p = SvPV(sv, len); |
5cd24f17 |
1942 | Groups_t gary[NGROUPS]; |
1943 | |
1944 | SET_NUMERIC_STANDARD(); |
1945 | while (isSPACE(*p)) |
1946 | ++p; |
3280af22 |
1947 | PL_egid = I_V(atof(p)); |
5cd24f17 |
1948 | for (i = 0; i < NGROUPS; ++i) { |
1949 | while (*p && !isSPACE(*p)) |
1950 | ++p; |
1951 | while (isSPACE(*p)) |
1952 | ++p; |
1953 | if (!*p) |
1954 | break; |
1955 | gary[i] = I_V(atof(p)); |
1956 | } |
8cc95fdb |
1957 | if (i) |
1958 | (void)setgroups(i, gary); |
5cd24f17 |
1959 | } |
1960 | #else /* HAS_SETGROUPS */ |
b28d0864 |
1961 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1962 | #endif /* HAS_SETGROUPS */ |
3280af22 |
1963 | if (PL_delaymagic) { |
1964 | PL_delaymagic |= DM_EGID; |
79072805 |
1965 | break; /* don't do magic till later */ |
1966 | } |
1967 | #ifdef HAS_SETEGID |
3280af22 |
1968 | (void)setegid((Gid_t)PL_egid); |
79072805 |
1969 | #else |
1970 | #ifdef HAS_SETREGID |
b28d0864 |
1971 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
1972 | #else |
1973 | #ifdef HAS_SETRESGID |
b28d0864 |
1974 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
1975 | #else |
b28d0864 |
1976 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1977 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
1978 | else { |
b28d0864 |
1979 | PL_egid = (I32)PerlProc_getegid(); |
463ee0b2 |
1980 | croak("setegid() not implemented"); |
748a9306 |
1981 | } |
79072805 |
1982 | #endif |
1983 | #endif |
85e6fe83 |
1984 | #endif |
3280af22 |
1985 | PL_egid = (I32)PerlProc_getegid(); |
1986 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1987 | break; |
1988 | case ':': |
2d8e6c8d |
1989 | PL_chopset = SvPV_force(sv,len); |
79072805 |
1990 | break; |
1991 | case '0': |
3280af22 |
1992 | if (!PL_origalen) { |
1993 | s = PL_origargv[0]; |
79072805 |
1994 | s += strlen(s); |
1995 | /* See if all the arguments are contiguous in memory */ |
3280af22 |
1996 | for (i = 1; i < PL_origargc; i++) { |
1997 | if (PL_origargv[i] == s + 1 |
fb73857a |
1998 | #ifdef OS2 |
6b88bc9c |
1999 | || PL_origargv[i] == s + 2 |
fb73857a |
2000 | #endif |
2001 | ) |
379c4362 |
2002 | { |
2003 | ++s; |
2004 | s += strlen(s); /* this one is ok too */ |
2005 | } |
fb73857a |
2006 | else |
2007 | break; |
79072805 |
2008 | } |
bbce6d69 |
2009 | /* can grab env area too? */ |
3280af22 |
2010 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a |
2011 | #ifdef OS2 |
6b88bc9c |
2012 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a |
2013 | #endif |
2014 | )) { |
66b1d557 |
2015 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
2016 | /* force copy of environment */ |
3280af22 |
2017 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 |
2018 | if (PL_origenviron[i] == s + 1) { |
2019 | ++s; |
2020 | s += strlen(s); |
2021 | } |
fb73857a |
2022 | else |
2023 | break; |
79072805 |
2024 | } |
3280af22 |
2025 | PL_origalen = s - PL_origargv[0]; |
79072805 |
2026 | } |
a0d0e21e |
2027 | s = SvPV_force(sv,len); |
8990e307 |
2028 | i = len; |
3280af22 |
2029 | if (i >= PL_origalen) { |
2030 | i = PL_origalen; |
fb73857a |
2031 | /* don't allow system to limit $0 seen by script */ |
2032 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
3280af22 |
2033 | Copy(s, PL_origargv[0], i, char); |
2034 | s = PL_origargv[0]+i; |
fb73857a |
2035 | *s = '\0'; |
79072805 |
2036 | } |
2037 | else { |
3280af22 |
2038 | Copy(s, PL_origargv[0], i, char); |
2039 | s = PL_origargv[0]+i; |
79072805 |
2040 | *s++ = '\0'; |
3280af22 |
2041 | while (++i < PL_origalen) |
8990e307 |
2042 | *s++ = ' '; |
3280af22 |
2043 | s = PL_origargv[0]+i; |
2044 | for (i = 1; i < PL_origargc; i++) |
2045 | PL_origargv[i] = Nullch; |
79072805 |
2046 | } |
2047 | break; |
a863c7d1 |
2048 | #ifdef USE_THREADS |
2049 | case '@': |
38a03e6e |
2050 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
2051 | break; |
2052 | #endif /* USE_THREADS */ |
79072805 |
2053 | } |
2054 | return 0; |
2055 | } |
2056 | |
f93b4edd |
2057 | #ifdef USE_THREADS |
2058 | int |
8ac85365 |
2059 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd |
2060 | { |
2061 | dTHR; |
8b73bbec |
2062 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 |
2063 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
2064 | if (MgOWNER(mg)) |
2065 | croak("panic: magic_mutexfree"); |
2066 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2067 | COND_DESTROY(MgCONDP(mg)); |
2068 | return 0; |
2069 | } |
2070 | #endif /* USE_THREADS */ |
2071 | |
79072805 |
2072 | I32 |
8ac85365 |
2073 | whichsig(char *sig) |
79072805 |
2074 | { |
2075 | register char **sigv; |
2076 | |
22c35a8c |
2077 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 |
2078 | if (strEQ(sig,*sigv)) |
22c35a8c |
2079 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 |
2080 | #ifdef SIGCLD |
2081 | if (strEQ(sig,"CHLD")) |
2082 | return SIGCLD; |
2083 | #endif |
2084 | #ifdef SIGCHLD |
2085 | if (strEQ(sig,"CLD")) |
2086 | return SIGCHLD; |
2087 | #endif |
2088 | return 0; |
2089 | } |
2090 | |
84902520 |
2091 | static SV* sig_sv; |
2092 | |
76e3520e |
2093 | STATIC void |
8ac85365 |
2094 | unwind_handler_stack(void *p) |
84902520 |
2095 | { |
ff26ac79 |
2096 | dTHR; |
84902520 |
2097 | U32 flags = *(U32*)p; |
2098 | |
2099 | if (flags & 1) |
3280af22 |
2100 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 |
2101 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2102 | if (flags & 64) |
2103 | SvREFCNT_dec(sig_sv); |
2104 | } |
2105 | |
ecfc5424 |
2106 | Signal_t |
8ac85365 |
2107 | sighandler(int sig) |
79072805 |
2108 | { |
2109 | dSP; |
00d579c5 |
2110 | GV *gv = Nullgv; |
a0d0e21e |
2111 | HV *st; |
3280af22 |
2112 | SV *sv, *tSv = PL_Sv; |
00d579c5 |
2113 | CV *cv = Nullcv; |
533c011a |
2114 | OP *myop = PL_op; |
84902520 |
2115 | U32 flags = 0; |
3280af22 |
2116 | I32 o_save_i = PL_savestack_ix, type; |
2117 | XPV *tXpv = PL_Xpv; |
84902520 |
2118 | |
3280af22 |
2119 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2120 | flags |= 1; |
3280af22 |
2121 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2122 | flags |= 4; |
3280af22 |
2123 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 |
2124 | flags |= 8; |
3280af22 |
2125 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2126 | flags |= 16; |
2127 | |
22c35a8c |
2128 | if (!PL_psig_ptr[sig]) |
ff0cee69 |
2129 | die("Signal SIG%s received, but no signal handler set.\n", |
22c35a8c |
2130 | PL_sig_name[sig]); |
ff0cee69 |
2131 | |
84902520 |
2132 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2133 | infinity, so we fix 4 (in fact 5): */ |
2134 | if (flags & 1) { |
3280af22 |
2135 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2136 | o_save_i = PL_savestack_ix; |
565764a8 |
2137 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 |
2138 | } |
2139 | if (flags & 4) |
3280af22 |
2140 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2141 | if (flags & 8) { |
3280af22 |
2142 | PL_retstack_ix++; |
2143 | PL_retstack[PL_retstack_ix] = NULL; |
84902520 |
2144 | } |
2145 | if (flags & 16) |
3280af22 |
2146 | PL_scopestack_ix += 1; |
84902520 |
2147 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c |
2148 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 |
2149 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c |
2150 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 |
2151 | |
a0d0e21e |
2152 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2153 | if (ckWARN(WARN_SIGNAL)) |
2154 | warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c |
2155 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 |
2156 | : ((cv && CvGV(cv)) |
2157 | ? GvENAME(CvGV(cv)) |
2158 | : "__ANON__"))); |
2159 | goto cleanup; |
79072805 |
2160 | } |
2161 | |
22c35a8c |
2162 | if(PL_psig_name[sig]) { |
2163 | sv = SvREFCNT_inc(PL_psig_name[sig]); |
84902520 |
2164 | flags |= 64; |
2165 | sig_sv = sv; |
2166 | } else { |
ff0cee69 |
2167 | sv = sv_newmortal(); |
22c35a8c |
2168 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a |
2169 | } |
e336de0d |
2170 | |
e788e7d3 |
2171 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2172 | PUSHMARK(SP); |
79072805 |
2173 | PUSHs(sv); |
79072805 |
2174 | PUTBACK; |
a0d0e21e |
2175 | |
2176 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
2177 | |
d3acc0f7 |
2178 | POPSTACK; |
00d579c5 |
2179 | cleanup: |
84902520 |
2180 | if (flags & 1) |
3280af22 |
2181 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 |
2182 | if (flags & 4) |
3280af22 |
2183 | PL_markstack_ptr--; |
84902520 |
2184 | if (flags & 8) |
3280af22 |
2185 | PL_retstack_ix--; |
84902520 |
2186 | if (flags & 16) |
3280af22 |
2187 | PL_scopestack_ix -= 1; |
84902520 |
2188 | if (flags & 64) |
2189 | SvREFCNT_dec(sv); |
533c011a |
2190 | PL_op = myop; /* Apparently not needed... */ |
84902520 |
2191 | |
3280af22 |
2192 | PL_Sv = tSv; /* Restore global temporaries. */ |
2193 | PL_Xpv = tXpv; |
79072805 |
2194 | return; |
2195 | } |
4e35701f |
2196 | |
2197 | |