Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, 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)); |
34 | #endif |
35 | |
c07a80fd |
36 | /* |
37 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
38 | */ |
39 | |
40 | struct magic_state { |
41 | SV* mgs_sv; |
42 | U32 mgs_flags; |
455ece5e |
43 | I32 mgs_ss_ix; |
c07a80fd |
44 | }; |
455ece5e |
45 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e |
46 | |
47 | STATIC void |
455ece5e |
48 | save_magic(I32 mgs_ix, SV *sv) |
c07a80fd |
49 | { |
46124e9e |
50 | dTHR; |
455ece5e |
51 | MGS* mgs; |
c07a80fd |
52 | assert(SvMAGICAL(sv)); |
53 | |
455ece5e |
54 | SAVEDESTRUCTOR(restore_magic, (void*)mgs_ix); |
55 | |
56 | mgs = SSPTR(mgs_ix, MGS*); |
c07a80fd |
57 | mgs->mgs_sv = sv; |
58 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
455ece5e |
59 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd |
60 | |
61 | SvMAGICAL_off(sv); |
62 | SvREADONLY_off(sv); |
63 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
64 | } |
65 | |
76e3520e |
66 | STATIC void |
8ac85365 |
67 | restore_magic(void *p) |
c07a80fd |
68 | { |
46124e9e |
69 | dTHR; |
455ece5e |
70 | MGS* mgs = SSPTR((I32)p, MGS*); |
c07a80fd |
71 | SV* sv = mgs->mgs_sv; |
72 | |
455ece5e |
73 | if (!sv) |
74 | return; |
75 | |
c07a80fd |
76 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
77 | { |
78 | if (mgs->mgs_flags) |
79 | SvFLAGS(sv) |= mgs->mgs_flags; |
80 | else |
81 | mg_magical(sv); |
82 | if (SvGMAGICAL(sv)) |
83 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
84 | } |
455ece5e |
85 | |
86 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ |
87 | |
88 | /* If we're still on top of the stack, pop us off. (That condition |
89 | * will be satisfied if restore_magic was called explicitly, but *not* |
90 | * if it's being called via leave_scope.) |
91 | * The reason for doing this is that otherwise, things like sv_2cv() |
92 | * may leave alloc gunk on the savestack, and some code |
93 | * (e.g. sighandler) doesn't expect that... |
94 | */ |
95 | if (PL_savestack_ix == mgs->mgs_ss_ix) |
96 | { |
97 | assert(SSPOPINT == SAVEt_DESTRUCTOR); |
98 | PL_savestack_ix -= 2; |
99 | assert(SSPOPINT == SAVEt_ALLOC); |
100 | PL_savestack_ix -= SSPOPINT; |
101 | } |
102 | |
c07a80fd |
103 | } |
104 | |
8990e307 |
105 | void |
8ac85365 |
106 | mg_magical(SV *sv) |
8990e307 |
107 | { |
108 | MAGIC* mg; |
109 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
110 | MGVTBL* vtbl = mg->mg_virtual; |
111 | if (vtbl) { |
76e3520e |
112 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
113 | SvGMAGICAL_on(sv); |
114 | if (vtbl->svt_set) |
115 | SvSMAGICAL_on(sv); |
76e3520e |
116 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 |
117 | SvRMAGICAL_on(sv); |
118 | } |
119 | } |
120 | } |
121 | |
79072805 |
122 | int |
8ac85365 |
123 | mg_get(SV *sv) |
79072805 |
124 | { |
46124e9e |
125 | dTHR; |
455ece5e |
126 | I32 mgs_ix; |
79072805 |
127 | MAGIC* mg; |
c6496cc7 |
128 | MAGIC** mgp; |
760ac839 |
129 | int mgp_valid = 0; |
463ee0b2 |
130 | |
455ece5e |
131 | mgs_ix = SSNEW(sizeof(MGS)); |
132 | save_magic(mgs_ix, sv); |
463ee0b2 |
133 | |
c6496cc7 |
134 | mgp = &SvMAGIC(sv); |
135 | while ((mg = *mgp) != 0) { |
79072805 |
136 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e |
137 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
138 | (VTBL->svt_get)(sv, mg); |
c6496cc7 |
139 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
140 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
141 | (mg->mg_flags & MGf_GSKIP)) |
455ece5e |
142 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
143 | } |
c6496cc7 |
144 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
145 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
146 | mgp = &mg->mg_moremagic; |
760ac839 |
147 | mgp_valid = 1; |
148 | } |
149 | else |
150 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
151 | } |
463ee0b2 |
152 | |
455ece5e |
153 | restore_magic((void*)mgs_ix); |
79072805 |
154 | return 0; |
155 | } |
156 | |
157 | int |
8ac85365 |
158 | mg_set(SV *sv) |
79072805 |
159 | { |
46124e9e |
160 | dTHR; |
455ece5e |
161 | I32 mgs_ix; |
79072805 |
162 | MAGIC* mg; |
463ee0b2 |
163 | MAGIC* nextmg; |
164 | |
455ece5e |
165 | mgs_ix = SSNEW(sizeof(MGS)); |
166 | save_magic(mgs_ix, sv); |
463ee0b2 |
167 | |
168 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
169 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
170 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
171 | if (mg->mg_flags & MGf_GSKIP) { |
172 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
455ece5e |
173 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
174 | } |
76e3520e |
175 | if (vtbl && (vtbl->svt_set != NULL)) |
176 | (VTBL->svt_set)(sv, mg); |
79072805 |
177 | } |
463ee0b2 |
178 | |
455ece5e |
179 | restore_magic((void*)mgs_ix); |
79072805 |
180 | return 0; |
181 | } |
182 | |
183 | U32 |
565764a8 |
184 | mg_length(SV *sv) |
79072805 |
185 | { |
186 | MAGIC* mg; |
748a9306 |
187 | char *junk; |
463ee0b2 |
188 | STRLEN len; |
463ee0b2 |
189 | |
79072805 |
190 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
191 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e |
192 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e |
193 | I32 mgs_ix; |
48e43a1c |
194 | |
455ece5e |
195 | mgs_ix = SSNEW(sizeof(MGS)); |
196 | save_magic(mgs_ix, sv); |
a0d0e21e |
197 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e |
198 | len = (VTBL->svt_len)(sv, mg); |
455ece5e |
199 | restore_magic((void*)mgs_ix); |
85e6fe83 |
200 | return len; |
201 | } |
202 | } |
203 | |
748a9306 |
204 | junk = SvPV(sv, len); |
463ee0b2 |
205 | return len; |
79072805 |
206 | } |
207 | |
93965878 |
208 | I32 |
209 | mg_size(SV *sv) |
210 | { |
211 | MAGIC* mg; |
212 | I32 len; |
213 | |
214 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
215 | MGVTBL* vtbl = mg->mg_virtual; |
565764a8 |
216 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e |
217 | I32 mgs_ix; |
218 | |
219 | mgs_ix = SSNEW(sizeof(MGS)); |
220 | save_magic(mgs_ix, sv); |
93965878 |
221 | /* omit MGf_GSKIP -- not changed here */ |
565764a8 |
222 | len = (VTBL->svt_len)(sv, mg); |
455ece5e |
223 | restore_magic((void*)mgs_ix); |
93965878 |
224 | return len; |
225 | } |
226 | } |
227 | |
228 | switch(SvTYPE(sv)) { |
229 | case SVt_PVAV: |
230 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
231 | return len; |
232 | case SVt_PVHV: |
233 | /* FIXME */ |
234 | default: |
235 | croak("Size magic not implemented"); |
236 | break; |
237 | } |
238 | return 0; |
239 | } |
240 | |
79072805 |
241 | int |
8ac85365 |
242 | mg_clear(SV *sv) |
79072805 |
243 | { |
455ece5e |
244 | I32 mgs_ix; |
79072805 |
245 | MAGIC* mg; |
463ee0b2 |
246 | |
455ece5e |
247 | mgs_ix = SSNEW(sizeof(MGS)); |
248 | save_magic(mgs_ix, sv); |
463ee0b2 |
249 | |
79072805 |
250 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
251 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
252 | /* omit GSKIP -- never set here */ |
253 | |
76e3520e |
254 | if (vtbl && (vtbl->svt_clear != NULL)) |
255 | (VTBL->svt_clear)(sv, mg); |
79072805 |
256 | } |
463ee0b2 |
257 | |
455ece5e |
258 | restore_magic((void*)mgs_ix); |
79072805 |
259 | return 0; |
260 | } |
261 | |
93a17b20 |
262 | MAGIC* |
8ac85365 |
263 | mg_find(SV *sv, int type) |
93a17b20 |
264 | { |
265 | MAGIC* mg; |
93a17b20 |
266 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
267 | if (mg->mg_type == type) |
268 | return mg; |
269 | } |
270 | return 0; |
271 | } |
272 | |
79072805 |
273 | int |
8ac85365 |
274 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 |
275 | { |
463ee0b2 |
276 | int count = 0; |
79072805 |
277 | MAGIC* mg; |
463ee0b2 |
278 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
279 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
280 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
281 | count++; |
79072805 |
282 | } |
79072805 |
283 | } |
463ee0b2 |
284 | return count; |
79072805 |
285 | } |
286 | |
287 | int |
8ac85365 |
288 | mg_free(SV *sv) |
79072805 |
289 | { |
290 | MAGIC* mg; |
291 | MAGIC* moremagic; |
292 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
293 | MGVTBL* vtbl = mg->mg_virtual; |
294 | moremagic = mg->mg_moremagic; |
76e3520e |
295 | if (vtbl && (vtbl->svt_free != NULL)) |
296 | (VTBL->svt_free)(sv, mg); |
93a17b20 |
297 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 |
298 | if (mg->mg_len >= 0) |
88e89b8a |
299 | Safefree(mg->mg_ptr); |
565764a8 |
300 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
301 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
302 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
303 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
304 | Safefree(mg); |
305 | } |
306 | SvMAGIC(sv) = 0; |
307 | return 0; |
308 | } |
309 | |
310 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
311 | #include <signal.h> |
312 | #endif |
313 | |
942e002e |
314 | U32 |
6cef1e77 |
315 | magic_regdata_cnt(SV *sv, MAGIC *mg) |
316 | { |
317 | dTHR; |
318 | register char *s; |
319 | register I32 i; |
320 | register REGEXP *rx; |
321 | char *t; |
322 | |
323 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) |
324 | return rx->lastparen; |
942e002e |
325 | return (U32)-1; |
6cef1e77 |
326 | } |
327 | |
328 | int |
329 | magic_regdatum_get(SV *sv, MAGIC *mg) |
330 | { |
331 | dTHR; |
332 | register I32 paren; |
333 | register char *s; |
334 | register I32 i; |
335 | register REGEXP *rx; |
336 | char *t; |
337 | |
338 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
339 | paren = mg->mg_len; |
340 | if (paren < 0) |
341 | return 0; |
342 | if (paren <= rx->nparens && |
343 | (s = rx->startp[paren]) && |
344 | (t = rx->endp[paren])) |
345 | { |
346 | if (mg->mg_obj) /* @+ */ |
347 | i = t - rx->subbase; |
348 | else /* @- */ |
349 | i = s - rx->subbase; |
350 | sv_setiv(sv,i); |
351 | } |
352 | } |
353 | return 0; |
354 | } |
355 | |
93a17b20 |
356 | U32 |
8ac85365 |
357 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 |
358 | { |
a863c7d1 |
359 | dTHR; |
93a17b20 |
360 | register I32 paren; |
361 | register char *s; |
362 | register I32 i; |
d9f97599 |
363 | register REGEXP *rx; |
748a9306 |
364 | char *t; |
93a17b20 |
365 | |
366 | switch (*mg->mg_ptr) { |
367 | case '1': case '2': case '3': case '4': |
368 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
369 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
93a17b20 |
370 | paren = atoi(mg->mg_ptr); |
371 | getparen: |
d9f97599 |
372 | if (paren <= rx->nparens && |
373 | (s = rx->startp[paren]) && |
374 | (t = rx->endp[paren])) |
bbce6d69 |
375 | { |
748a9306 |
376 | i = t - s; |
71be2cbc |
377 | if (i >= 0) |
93a17b20 |
378 | return i; |
93a17b20 |
379 | } |
93a17b20 |
380 | } |
748a9306 |
381 | return 0; |
93a17b20 |
382 | case '+': |
3280af22 |
383 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
384 | paren = rx->lastparen; |
13f57bf8 |
385 | if (paren) |
386 | goto getparen; |
93a17b20 |
387 | } |
748a9306 |
388 | return 0; |
93a17b20 |
389 | case '`': |
3280af22 |
390 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
391 | if ((s = rx->subbeg) && rx->startp[0]) { |
392 | i = rx->startp[0] - s; |
71be2cbc |
393 | if (i >= 0) |
93a17b20 |
394 | return i; |
93a17b20 |
395 | } |
93a17b20 |
396 | } |
748a9306 |
397 | return 0; |
93a17b20 |
398 | case '\'': |
3280af22 |
399 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
400 | if (rx->subend && (s = rx->endp[0])) { |
401 | i = rx->subend - s; |
13f57bf8 |
402 | if (i >= 0) |
5cd24f17 |
403 | return i; |
93a17b20 |
404 | } |
93a17b20 |
405 | } |
748a9306 |
406 | return 0; |
93a17b20 |
407 | case ',': |
3280af22 |
408 | return (STRLEN)PL_ofslen; |
93a17b20 |
409 | case '\\': |
3280af22 |
410 | return (STRLEN)PL_orslen; |
93a17b20 |
411 | } |
412 | magic_get(sv,mg); |
413 | if (!SvPOK(sv) && SvNIOK(sv)) |
3280af22 |
414 | sv_2pv(sv, &PL_na); |
93a17b20 |
415 | if (SvPOK(sv)) |
416 | return SvCUR(sv); |
417 | return 0; |
418 | } |
419 | |
599cee73 |
420 | #if 0 |
421 | static char * |
422 | printW(sv) |
423 | SV * sv ; |
424 | { |
425 | #if 1 |
426 | return "" ; |
427 | |
428 | #else |
429 | int i ; |
430 | static char buffer[50] ; |
431 | char buf1[20] ; |
432 | char * p ; |
433 | |
434 | |
435 | sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ; |
436 | p = SvPVX(sv) ; |
437 | for (i = 0; i < SvCUR(sv) ; ++ i) { |
438 | sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ; |
439 | strcat(buffer, buf1) ; |
440 | } |
441 | |
442 | return buffer ; |
443 | |
444 | #endif |
445 | } |
446 | #endif |
447 | |
79072805 |
448 | int |
8ac85365 |
449 | magic_get(SV *sv, MAGIC *mg) |
79072805 |
450 | { |
a863c7d1 |
451 | dTHR; |
79072805 |
452 | register I32 paren; |
453 | register char *s; |
454 | register I32 i; |
d9f97599 |
455 | register REGEXP *rx; |
748a9306 |
456 | char *t; |
79072805 |
457 | |
458 | switch (*mg->mg_ptr) { |
748a9306 |
459 | case '\001': /* ^A */ |
3280af22 |
460 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
461 | break; |
599cee73 |
462 | case '\002': /* ^B */ |
463 | /* printf("magic_get $^B: ") ; */ |
464 | if (curcop->cop_warnings == WARN_NONE) |
465 | /* printf("WARN_NONE\n"), */ |
466 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
467 | else if (curcop->cop_warnings == WARN_ALL) |
468 | /* printf("WARN_ALL\n"), */ |
469 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
470 | else |
471 | /* printf("some %s\n", printW(curcop->cop_warnings)), */ |
472 | sv_setsv(sv, curcop->cop_warnings); |
473 | break; |
79072805 |
474 | case '\004': /* ^D */ |
3280af22 |
475 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 |
476 | break; |
28f23441 |
477 | case '\005': /* ^E */ |
478 | #ifdef VMS |
479 | { |
480 | # include <descrip.h> |
481 | # include <starlet.h> |
482 | char msg[255]; |
483 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
484 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
485 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
486 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
487 | else |
488 | sv_setpv(sv,""); |
489 | } |
490 | #else |
88e89b8a |
491 | #ifdef OS2 |
fb73857a |
492 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
493 | sv_setnv(sv, (double)errno); |
494 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
495 | } else { |
496 | if (errno != errno_isOS2) |
497 | Perl_rc = _syserrno(); |
498 | sv_setnv(sv, (double)Perl_rc); |
499 | sv_setpv(sv, os2error(Perl_rc)); |
500 | } |
88e89b8a |
501 | #else |
22fae026 |
502 | #ifdef WIN32 |
503 | { |
504 | DWORD dwErr = GetLastError(); |
505 | sv_setnv(sv, (double)dwErr); |
506 | if (dwErr) |
76e3520e |
507 | { |
508 | #ifdef PERL_OBJECT |
509 | char *sMsg; |
510 | DWORD dwLen; |
511 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); |
512 | sv_setpvn(sv, sMsg, dwLen); |
513 | PerlProc_FreeBuf(sMsg); |
514 | #else |
22fae026 |
515 | win32_str_os_error(sv, dwErr); |
76e3520e |
516 | #endif |
517 | } |
22fae026 |
518 | else |
519 | sv_setpv(sv, ""); |
520 | SetLastError(dwErr); |
521 | } |
522 | #else |
946ec16e |
523 | sv_setnv(sv, (double)errno); |
28f23441 |
524 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
525 | #endif |
88e89b8a |
526 | #endif |
22fae026 |
527 | #endif |
946ec16e |
528 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
529 | break; |
79072805 |
530 | case '\006': /* ^F */ |
3280af22 |
531 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
532 | break; |
a0d0e21e |
533 | case '\010': /* ^H */ |
3280af22 |
534 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
535 | break; |
9d116dd7 |
536 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
537 | if (PL_inplace) |
538 | sv_setpv(sv, PL_inplace); |
79072805 |
539 | else |
3280af22 |
540 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
541 | break; |
28f23441 |
542 | case '\017': /* ^O */ |
3280af22 |
543 | sv_setpv(sv, PL_osname); |
28f23441 |
544 | break; |
79072805 |
545 | case '\020': /* ^P */ |
3280af22 |
546 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
547 | break; |
fb73857a |
548 | case '\023': /* ^S */ |
d58bf5aa |
549 | { |
550 | dTHR; |
3280af22 |
551 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa |
552 | SvOK_off(sv); |
3280af22 |
553 | else if (PL_in_eval) |
d58bf5aa |
554 | sv_setiv(sv, 1); |
555 | else |
556 | sv_setiv(sv, 0); |
557 | } |
fb73857a |
558 | break; |
79072805 |
559 | case '\024': /* ^T */ |
88e89b8a |
560 | #ifdef BIG_TIME |
6b88bc9c |
561 | sv_setnv(sv, PL_basetime); |
88e89b8a |
562 | #else |
3280af22 |
563 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
564 | #endif |
79072805 |
565 | break; |
566 | case '\027': /* ^W */ |
599cee73 |
567 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 |
568 | break; |
569 | case '1': case '2': case '3': case '4': |
570 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
571 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
a863c7d1 |
572 | /* |
573 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
574 | * XXX Does the new way break anything? |
575 | */ |
576 | paren = atoi(mg->mg_ptr); |
79072805 |
577 | getparen: |
d9f97599 |
578 | if (paren <= rx->nparens && |
579 | (s = rx->startp[paren]) && |
580 | (t = rx->endp[paren])) |
bbce6d69 |
581 | { |
748a9306 |
582 | i = t - s; |
13f57bf8 |
583 | getrx: |
748a9306 |
584 | if (i >= 0) { |
13f57bf8 |
585 | bool was_tainted; |
3280af22 |
586 | if (PL_tainting) { |
587 | was_tainted = PL_tainted; |
588 | PL_tainted = FALSE; |
13f57bf8 |
589 | } |
79072805 |
590 | sv_setpvn(sv,s,i); |
3280af22 |
591 | if (PL_tainting) |
592 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); |
748a9306 |
593 | break; |
594 | } |
79072805 |
595 | } |
79072805 |
596 | } |
3280af22 |
597 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
598 | break; |
599 | case '+': |
3280af22 |
600 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
601 | paren = rx->lastparen; |
a0d0e21e |
602 | if (paren) |
603 | goto getparen; |
79072805 |
604 | } |
3280af22 |
605 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
606 | break; |
607 | case '`': |
3280af22 |
608 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
609 | if ((s = rx->subbeg) && rx->startp[0]) { |
610 | i = rx->startp[0] - s; |
13f57bf8 |
611 | goto getrx; |
79072805 |
612 | } |
79072805 |
613 | } |
3280af22 |
614 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
615 | break; |
616 | case '\'': |
3280af22 |
617 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
618 | if (rx->subend && (s = rx->endp[0])) { |
619 | i = rx->subend - s; |
13f57bf8 |
620 | goto getrx; |
79072805 |
621 | } |
79072805 |
622 | } |
3280af22 |
623 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
624 | break; |
625 | case '.': |
626 | #ifndef lint |
3280af22 |
627 | if (GvIO(PL_last_in_gv)) { |
628 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); |
79072805 |
629 | } |
630 | #endif |
631 | break; |
632 | case '?': |
809a5acc |
633 | { |
809a5acc |
634 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
635 | #ifdef COMPLEX_STATUS |
6b88bc9c |
636 | LvTARGOFF(sv) = PL_statusvalue; |
637 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
638 | #endif |
809a5acc |
639 | } |
79072805 |
640 | break; |
641 | case '^': |
3280af22 |
642 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
643 | if (s) |
644 | sv_setpv(sv,s); |
645 | else { |
3280af22 |
646 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
647 | sv_catpv(sv,"_TOP"); |
648 | } |
649 | break; |
650 | case '~': |
3280af22 |
651 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
652 | if (!s) |
3280af22 |
653 | s = GvENAME(PL_defoutgv); |
79072805 |
654 | sv_setpv(sv,s); |
655 | break; |
656 | #ifndef lint |
657 | case '=': |
3280af22 |
658 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
659 | break; |
660 | case '-': |
3280af22 |
661 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
662 | break; |
663 | case '%': |
3280af22 |
664 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
665 | break; |
666 | #endif |
667 | case ':': |
668 | break; |
669 | case '/': |
670 | break; |
671 | case '[': |
3280af22 |
672 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
673 | break; |
674 | case '|': |
3280af22 |
675 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
676 | break; |
677 | case ',': |
3280af22 |
678 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 |
679 | break; |
680 | case '\\': |
3280af22 |
681 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 |
682 | break; |
683 | case '#': |
3280af22 |
684 | sv_setpv(sv,PL_ofmt); |
79072805 |
685 | break; |
686 | case '!': |
a5f75d66 |
687 | #ifdef VMS |
946ec16e |
688 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
689 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
690 | #else |
88e89b8a |
691 | { |
692 | int saveerrno = errno; |
946ec16e |
693 | sv_setnv(sv, (double)errno); |
88e89b8a |
694 | #ifdef OS2 |
695 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
696 | else |
a5f75d66 |
697 | #endif |
2304df62 |
698 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
699 | errno = saveerrno; |
700 | } |
701 | #endif |
946ec16e |
702 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
703 | break; |
704 | case '<': |
3280af22 |
705 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
706 | break; |
707 | case '>': |
3280af22 |
708 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
709 | break; |
710 | case '(': |
3280af22 |
711 | sv_setiv(sv, (IV)PL_gid); |
712 | sv_setpvf(sv, "%Vd", (IV)PL_gid); |
79072805 |
713 | goto add_groups; |
714 | case ')': |
3280af22 |
715 | sv_setiv(sv, (IV)PL_egid); |
716 | sv_setpvf(sv, "%Vd", (IV)PL_egid); |
79072805 |
717 | add_groups: |
79072805 |
718 | #ifdef HAS_GETGROUPS |
79072805 |
719 | { |
a0d0e21e |
720 | Groups_t gary[NGROUPS]; |
79072805 |
721 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
722 | while (--i >= 0) |
fc36a67e |
723 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
724 | } |
725 | #endif |
29355cf7 |
726 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
727 | break; |
728 | case '*': |
729 | break; |
730 | case '0': |
731 | break; |
a863c7d1 |
732 | #ifdef USE_THREADS |
733 | case '@': |
38a03e6e |
734 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
735 | break; |
736 | #endif /* USE_THREADS */ |
79072805 |
737 | } |
a0d0e21e |
738 | return 0; |
79072805 |
739 | } |
740 | |
741 | int |
8ac85365 |
742 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 |
743 | { |
744 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
745 | |
746 | if (uf && uf->uf_val) |
747 | (*uf->uf_val)(uf->uf_index, sv); |
748 | return 0; |
749 | } |
750 | |
751 | int |
8ac85365 |
752 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 |
753 | { |
754 | register char *s; |
88e89b8a |
755 | char *ptr; |
5aabfad6 |
756 | STRLEN len, klen; |
a0d0e21e |
757 | I32 i; |
1e422769 |
758 | |
a0d0e21e |
759 | s = SvPV(sv,len); |
5aabfad6 |
760 | ptr = MgPV(mg,klen); |
88e89b8a |
761 | my_setenv(ptr, s); |
1e422769 |
762 | |
a0d0e21e |
763 | #ifdef DYNAMIC_ENV_FETCH |
764 | /* We just undefd an environment var. Is a replacement */ |
765 | /* waiting in the wings? */ |
766 | if (!len) { |
5aabfad6 |
767 | SV **valp; |
6b88bc9c |
768 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 |
769 | s = SvPV(*valp, len); |
a0d0e21e |
770 | } |
771 | #endif |
1e422769 |
772 | |
39e571d4 |
773 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
774 | /* And you'll never guess what the dog had */ |
775 | /* in its mouth... */ |
3280af22 |
776 | if (PL_tainting) { |
1e422769 |
777 | MgTAINTEDDIR_off(mg); |
778 | #ifdef VMS |
5aabfad6 |
779 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
780 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
781 | struct stat sbuf; |
782 | int i = 0, j = 0; |
783 | |
784 | do { /* DCL$PATH may be a search list */ |
785 | while (1) { /* as may dev portion of any element */ |
786 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
787 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
788 | cando_by_name(S_IWUSR,0,elt) ) { |
789 | MgTAINTEDDIR_on(mg); |
790 | return 0; |
791 | } |
792 | } |
793 | if ((cp = strchr(elt, ':')) != Nullch) |
794 | *cp = '\0'; |
795 | if (my_trnlnm(elt, eltbuf, j++)) |
796 | elt = eltbuf; |
797 | else |
798 | break; |
799 | } |
800 | j = 0; |
801 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
802 | } |
803 | #endif /* VMS */ |
5aabfad6 |
804 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
805 | char *strend = s + len; |
463ee0b2 |
806 | |
807 | while (s < strend) { |
96827780 |
808 | char tmpbuf[256]; |
1e422769 |
809 | struct stat st; |
96827780 |
810 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
811 | s, strend, ':', &i); |
463ee0b2 |
812 | s++; |
96827780 |
813 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
814 | || *tmpbuf != '/' |
c6ed36e1 |
815 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
816 | MgTAINTEDDIR_on(mg); |
1e422769 |
817 | return 0; |
818 | } |
463ee0b2 |
819 | } |
79072805 |
820 | } |
821 | } |
39e571d4 |
822 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
823 | |
79072805 |
824 | return 0; |
825 | } |
826 | |
827 | int |
8ac85365 |
828 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 |
829 | { |
3280af22 |
830 | my_setenv(MgPV(mg,PL_na),Nullch); |
85e6fe83 |
831 | return 0; |
832 | } |
833 | |
88e89b8a |
834 | int |
8ac85365 |
835 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a |
836 | { |
837 | #if defined(VMS) |
838 | die("Can't make list assignment to %%ENV on this system"); |
839 | #else |
d58bf5aa |
840 | dTHR; |
3280af22 |
841 | if (PL_localizing) { |
fb73857a |
842 | HE* entry; |
843 | magic_clear_all_env(sv,mg); |
844 | hv_iterinit((HV*)sv); |
845 | while (entry = hv_iternext((HV*)sv)) { |
846 | I32 keylen; |
847 | my_setenv(hv_iterkey(entry, &keylen), |
3280af22 |
848 | SvPV(hv_iterval((HV*)sv, entry), PL_na)); |
fb73857a |
849 | } |
850 | } |
851 | #endif |
852 | return 0; |
853 | } |
854 | |
855 | int |
8ac85365 |
856 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 |
857 | { |
3e3baf6d |
858 | #if defined(VMS) |
859 | die("Can't make list assignment to %%ENV on this system"); |
860 | #else |
861 | #ifdef WIN32 |
862 | char *envv = GetEnvironmentStrings(); |
863 | char *cur = envv; |
864 | STRLEN len; |
865 | while (*cur) { |
866 | char *end = strchr(cur,'='); |
867 | if (end && end != cur) { |
868 | *end = '\0'; |
869 | my_setenv(cur,Nullch); |
870 | *end = '='; |
871 | cur += strlen(end+1)+1; |
872 | } |
873 | else if ((len = strlen(cur))) |
874 | cur += len+1; |
875 | } |
876 | FreeEnvironmentStrings(envv); |
66b1d557 |
877 | #else |
878 | I32 i; |
879 | |
3280af22 |
880 | if (environ == PL_origenviron) |
66b1d557 |
881 | New(901, environ, 1, char*); |
882 | else |
883 | for (i = 0; environ[i]; i++) |
884 | Safefree(environ[i]); |
885 | environ[0] = Nullch; |
886 | |
66b1d557 |
887 | #endif |
3e3baf6d |
888 | #endif |
889 | return 0; |
66b1d557 |
890 | } |
891 | |
892 | int |
8ac85365 |
893 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a |
894 | { |
895 | I32 i; |
896 | /* Are we fetching a signal entry? */ |
3280af22 |
897 | i = whichsig(MgPV(mg,PL_na)); |
88e89b8a |
898 | if (i) { |
899 | if(psig_ptr[i]) |
900 | sv_setsv(sv,psig_ptr[i]); |
901 | else { |
ff68c719 |
902 | Sighandler_t sigstate = rsignal_state(i); |
903 | |
88e89b8a |
904 | /* cache state so we don't fetch it again */ |
ff68c719 |
905 | if(sigstate == SIG_IGN) |
88e89b8a |
906 | sv_setpv(sv,"IGNORE"); |
907 | else |
3280af22 |
908 | sv_setsv(sv,&PL_sv_undef); |
88e89b8a |
909 | psig_ptr[i] = SvREFCNT_inc(sv); |
910 | SvTEMP_off(sv); |
911 | } |
912 | } |
913 | return 0; |
914 | } |
915 | int |
8ac85365 |
916 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a |
917 | { |
918 | I32 i; |
919 | /* Are we clearing a signal entry? */ |
3280af22 |
920 | i = whichsig(MgPV(mg,PL_na)); |
88e89b8a |
921 | if (i) { |
922 | if(psig_ptr[i]) { |
923 | SvREFCNT_dec(psig_ptr[i]); |
924 | psig_ptr[i]=0; |
925 | } |
926 | if(psig_name[i]) { |
927 | SvREFCNT_dec(psig_name[i]); |
928 | psig_name[i]=0; |
929 | } |
930 | } |
931 | return 0; |
932 | } |
3d37d572 |
933 | |
85e6fe83 |
934 | int |
8ac85365 |
935 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 |
936 | { |
11343788 |
937 | dTHR; |
79072805 |
938 | register char *s; |
939 | I32 i; |
748a9306 |
940 | SV** svp; |
a0d0e21e |
941 | |
3280af22 |
942 | s = MgPV(mg,PL_na); |
748a9306 |
943 | if (*s == '_') { |
944 | if (strEQ(s,"__DIE__")) |
3280af22 |
945 | svp = &PL_diehook; |
748a9306 |
946 | else if (strEQ(s,"__WARN__")) |
3280af22 |
947 | svp = &PL_warnhook; |
748a9306 |
948 | else if (strEQ(s,"__PARSE__")) |
3280af22 |
949 | svp = &PL_parsehook; |
748a9306 |
950 | else |
951 | croak("No such hook: %s", s); |
952 | i = 0; |
4633a7c4 |
953 | if (*svp) { |
954 | SvREFCNT_dec(*svp); |
955 | *svp = 0; |
956 | } |
748a9306 |
957 | } |
958 | else { |
959 | i = whichsig(s); /* ...no, a brick */ |
960 | if (!i) { |
599cee73 |
961 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
962 | warner(WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 |
963 | return 0; |
964 | } |
ff0cee69 |
965 | SvREFCNT_dec(psig_name[i]); |
966 | SvREFCNT_dec(psig_ptr[i]); |
88e89b8a |
967 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
968 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 |
969 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a |
970 | SvREADONLY_on(psig_name[i]); |
748a9306 |
971 | } |
a0d0e21e |
972 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
973 | if (i) |
3280af22 |
974 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
975 | else |
976 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
977 | return 0; |
978 | } |
3280af22 |
979 | s = SvPV_force(sv,PL_na); |
748a9306 |
980 | if (strEQ(s,"IGNORE")) { |
981 | if (i) |
ff68c719 |
982 | (void)rsignal(i, SIG_IGN); |
748a9306 |
983 | else |
984 | *svp = 0; |
985 | } |
986 | else if (strEQ(s,"DEFAULT") || !*s) { |
987 | if (i) |
ff68c719 |
988 | (void)rsignal(i, SIG_DFL); |
748a9306 |
989 | else |
990 | *svp = 0; |
991 | } |
79072805 |
992 | else { |
5aabfad6 |
993 | /* |
994 | * We should warn if HINT_STRICT_REFS, but without |
995 | * access to a known hint bit in a known OP, we can't |
996 | * tell whether HINT_STRICT_REFS is in force or not. |
997 | */ |
46fc3d4c |
998 | if (!strchr(s,':') && !strchr(s,'\'')) |
999 | sv_setpv(sv, form("main::%s", s)); |
748a9306 |
1000 | if (i) |
3280af22 |
1001 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
1002 | else |
1003 | *svp = SvREFCNT_inc(sv); |
79072805 |
1004 | } |
1005 | return 0; |
1006 | } |
1007 | |
1008 | int |
8ac85365 |
1009 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 |
1010 | { |
3280af22 |
1011 | PL_sub_generation++; |
463ee0b2 |
1012 | return 0; |
1013 | } |
1014 | |
a0d0e21e |
1015 | #ifdef OVERLOAD |
1016 | |
463ee0b2 |
1017 | int |
8ac85365 |
1018 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 |
1019 | { |
a0d0e21e |
1020 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
1021 | PL_amagic_generation++; |
463ee0b2 |
1022 | |
a0d0e21e |
1023 | return 0; |
1024 | } |
1025 | #endif /* OVERLOAD */ |
463ee0b2 |
1026 | |
946ec16e |
1027 | int |
6ff81951 |
1028 | magic_getnkeys(SV *sv, MAGIC *mg) |
1029 | { |
1030 | HV *hv = (HV*)LvTARG(sv); |
1031 | HE *entry; |
1032 | I32 i = 0; |
1033 | |
1034 | if (hv) { |
1035 | (void) hv_iterinit(hv); |
1036 | if (!SvRMAGICAL(hv) || !mg_find((SV*)hv,'P')) |
1037 | i = HvKEYS(hv); |
1038 | else { |
1039 | /*SUPPRESS 560*/ |
1040 | while (entry = hv_iternext(hv)) { |
1041 | i++; |
1042 | } |
1043 | } |
1044 | } |
1045 | |
1046 | sv_setiv(sv, (IV)i); |
1047 | return 0; |
1048 | } |
1049 | |
1050 | int |
8ac85365 |
1051 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e |
1052 | { |
1053 | if (LvTARG(sv)) { |
1054 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1055 | } |
1056 | return 0; |
93965878 |
1057 | } |
946ec16e |
1058 | |
e336de0d |
1059 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1060 | STATIC int |
93965878 |
1061 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1062 | { |
1063 | dSP; |
463ee0b2 |
1064 | |
924508f0 |
1065 | PUSHMARK(SP); |
1066 | EXTEND(SP, n); |
a0d0e21e |
1067 | PUSHs(mg->mg_obj); |
93965878 |
1068 | if (n > 1) { |
1069 | if (mg->mg_ptr) { |
565764a8 |
1070 | if (mg->mg_len >= 0) |
1071 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
1072 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1073 | PUSHs((SV*)mg->mg_ptr); |
1074 | } |
1075 | else if (mg->mg_type == 'p') { |
565764a8 |
1076 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1077 | } |
1078 | } |
1079 | if (n > 2) { |
1080 | PUSHs(val); |
88e89b8a |
1081 | } |
463ee0b2 |
1082 | PUTBACK; |
1083 | |
93965878 |
1084 | return perl_call_method(meth, flags); |
946ec16e |
1085 | } |
1086 | |
76e3520e |
1087 | STATIC int |
8ac85365 |
1088 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1089 | { |
1090 | dSP; |
463ee0b2 |
1091 | |
a0d0e21e |
1092 | ENTER; |
1093 | SAVETMPS; |
e788e7d3 |
1094 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1095 | |
93965878 |
1096 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1097 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1098 | } |
463ee0b2 |
1099 | |
d3acc0f7 |
1100 | POPSTACK; |
a0d0e21e |
1101 | FREETMPS; |
1102 | LEAVE; |
1103 | return 0; |
1104 | } |
463ee0b2 |
1105 | |
a0d0e21e |
1106 | int |
8ac85365 |
1107 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e |
1108 | { |
1109 | magic_methpack(sv,mg,"FETCH"); |
1110 | if (mg->mg_ptr) |
1111 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1112 | return 0; |
1113 | } |
1114 | |
1115 | int |
8ac85365 |
1116 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d |
1117 | { |
1118 | dSP; |
a60c0954 |
1119 | ENTER; |
e788e7d3 |
1120 | PUSHSTACKi(PERLSI_MAGIC); |
93965878 |
1121 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1122 | POPSTACK; |
a60c0954 |
1123 | LEAVE; |
463ee0b2 |
1124 | return 0; |
1125 | } |
1126 | |
1127 | int |
8ac85365 |
1128 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 |
1129 | { |
a0d0e21e |
1130 | return magic_methpack(sv,mg,"DELETE"); |
1131 | } |
463ee0b2 |
1132 | |
93965878 |
1133 | |
1134 | U32 |
1135 | magic_sizepack(SV *sv, MAGIC *mg) |
1136 | { |
e336de0d |
1137 | dSP; |
93965878 |
1138 | U32 retval = 0; |
1139 | |
1140 | ENTER; |
1141 | SAVETMPS; |
e788e7d3 |
1142 | PUSHSTACKi(PERLSI_MAGIC); |
93965878 |
1143 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1144 | sv = *PL_stack_sp--; |
a60c0954 |
1145 | retval = (U32) SvIV(sv)-1; |
93965878 |
1146 | } |
d3acc0f7 |
1147 | POPSTACK; |
93965878 |
1148 | FREETMPS; |
1149 | LEAVE; |
1150 | return retval; |
1151 | } |
1152 | |
8ac85365 |
1153 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e |
1154 | { |
1155 | dSP; |
463ee0b2 |
1156 | |
e336de0d |
1157 | ENTER; |
e788e7d3 |
1158 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1159 | PUSHMARK(SP); |
a0d0e21e |
1160 | XPUSHs(mg->mg_obj); |
463ee0b2 |
1161 | PUTBACK; |
a0d0e21e |
1162 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1163 | POPSTACK; |
a60c0954 |
1164 | LEAVE; |
463ee0b2 |
1165 | return 0; |
1166 | } |
1167 | |
1168 | int |
8ac85365 |
1169 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1170 | { |
463ee0b2 |
1171 | dSP; |
a0d0e21e |
1172 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1173 | |
1174 | ENTER; |
a0d0e21e |
1175 | SAVETMPS; |
e788e7d3 |
1176 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1177 | PUSHMARK(SP); |
1178 | EXTEND(SP, 2); |
a0d0e21e |
1179 | PUSHs(mg->mg_obj); |
463ee0b2 |
1180 | if (SvOK(key)) |
1181 | PUSHs(key); |
1182 | PUTBACK; |
1183 | |
a0d0e21e |
1184 | if (perl_call_method(meth, G_SCALAR)) |
3280af22 |
1185 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1186 | |
d3acc0f7 |
1187 | POPSTACK; |
a0d0e21e |
1188 | FREETMPS; |
1189 | LEAVE; |
79072805 |
1190 | return 0; |
1191 | } |
1192 | |
1193 | int |
8ac85365 |
1194 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e |
1195 | { |
1196 | return magic_methpack(sv,mg,"EXISTS"); |
1197 | } |
1198 | |
1199 | int |
8ac85365 |
1200 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 |
1201 | { |
11343788 |
1202 | dTHR; |
79072805 |
1203 | OP *o; |
1204 | I32 i; |
1205 | GV* gv; |
1206 | SV** svp; |
1207 | |
3280af22 |
1208 | gv = PL_DBline; |
79072805 |
1209 | i = SvTRUE(sv); |
188ea221 |
1210 | svp = av_fetch(GvAV(gv), |
3280af22 |
1211 | atoi(MgPV(mg,PL_na)), FALSE); |
8990e307 |
1212 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
1213 | o->op_private = i; |
79072805 |
1214 | else |
1215 | warn("Can't break at that line\n"); |
1216 | return 0; |
1217 | } |
1218 | |
1219 | int |
8ac85365 |
1220 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 |
1221 | { |
0f15f207 |
1222 | dTHR; |
3280af22 |
1223 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 |
1224 | return 0; |
1225 | } |
1226 | |
1227 | int |
8ac85365 |
1228 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 |
1229 | { |
0f15f207 |
1230 | dTHR; |
3280af22 |
1231 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e |
1232 | return 0; |
1233 | } |
1234 | |
1235 | int |
8ac85365 |
1236 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1237 | { |
1238 | SV* lsv = LvTARG(sv); |
1239 | |
1240 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1241 | mg = mg_find(lsv, 'g'); |
565764a8 |
1242 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1243 | dTHR; |
a0ed51b3 |
1244 | I32 i = mg->mg_len; |
1245 | if (IN_UTF8) |
1246 | sv_pos_b2u(lsv, &i); |
1247 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1248 | return 0; |
1249 | } |
1250 | } |
1251 | (void)SvOK_off(sv); |
1252 | return 0; |
1253 | } |
1254 | |
1255 | int |
8ac85365 |
1256 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1257 | { |
1258 | SV* lsv = LvTARG(sv); |
1259 | SSize_t pos; |
1260 | STRLEN len; |
a0ed51b3 |
1261 | STRLEN ulen; |
c485e607 |
1262 | dTHR; |
a0d0e21e |
1263 | |
1264 | mg = 0; |
1265 | |
1266 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1267 | mg = mg_find(lsv, 'g'); |
1268 | if (!mg) { |
1269 | if (!SvOK(sv)) |
1270 | return 0; |
1271 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1272 | mg = mg_find(lsv, 'g'); |
1273 | } |
1274 | else if (!SvOK(sv)) { |
565764a8 |
1275 | mg->mg_len = -1; |
a0d0e21e |
1276 | return 0; |
1277 | } |
1278 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1279 | |
c485e607 |
1280 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1281 | |
1282 | if (IN_UTF8) { |
1283 | ulen = sv_len_utf8(lsv); |
1284 | if (ulen) |
1285 | len = ulen; |
1286 | else |
1287 | ulen = 0; |
1288 | } |
1289 | |
a0d0e21e |
1290 | if (pos < 0) { |
1291 | pos += len; |
1292 | if (pos < 0) |
1293 | pos = 0; |
1294 | } |
1295 | else if (pos > len) |
1296 | pos = len; |
a0ed51b3 |
1297 | |
1298 | if (ulen) { |
1299 | I32 p = pos; |
1300 | sv_pos_u2b(lsv, &p, 0); |
1301 | pos = p; |
1302 | } |
1303 | |
565764a8 |
1304 | mg->mg_len = pos; |
71be2cbc |
1305 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1306 | |
79072805 |
1307 | return 0; |
1308 | } |
1309 | |
1310 | int |
8ac85365 |
1311 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 |
1312 | { |
8646b087 |
1313 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1314 | SvFAKE_off(sv); |
946ec16e |
1315 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1316 | SvFAKE_on(sv); |
1317 | } |
1318 | else |
946ec16e |
1319 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1320 | return 0; |
1321 | } |
1322 | |
1323 | int |
8ac85365 |
1324 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 |
1325 | { |
1326 | register char *s; |
1327 | GV* gv; |
1328 | |
1329 | if (!SvOK(sv)) |
1330 | return 0; |
3280af22 |
1331 | s = SvPV(sv, PL_na); |
79072805 |
1332 | if (*s == '*' && s[1]) |
1333 | s++; |
85e6fe83 |
1334 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1335 | if (sv == (SV*)gv) |
1336 | return 0; |
1337 | if (GvGP(sv)) |
88e89b8a |
1338 | gp_free((GV*)sv); |
79072805 |
1339 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1340 | return 0; |
1341 | } |
1342 | |
1343 | int |
6ff81951 |
1344 | magic_getsubstr(SV *sv, MAGIC *mg) |
1345 | { |
1346 | STRLEN len; |
1347 | SV *lsv = LvTARG(sv); |
1348 | char *tmps = SvPV(lsv,len); |
1349 | I32 offs = LvTARGOFF(sv); |
1350 | I32 rem = LvTARGLEN(sv); |
1351 | |
1352 | if (offs > len) |
1353 | offs = len; |
1354 | if (rem + offs > len) |
1355 | rem = len - offs; |
1356 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
1357 | return 0; |
1358 | } |
1359 | |
1360 | int |
8ac85365 |
1361 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 |
1362 | { |
8990e307 |
1363 | STRLEN len; |
1364 | char *tmps = SvPV(sv,len); |
1365 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1366 | return 0; |
1367 | } |
1368 | |
1369 | int |
8ac85365 |
1370 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1371 | { |
a863c7d1 |
1372 | dTHR; |
565764a8 |
1373 | TAINT_IF((mg->mg_len & 1) || |
1374 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1375 | return 0; |
1376 | } |
1377 | |
1378 | int |
8ac85365 |
1379 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1380 | { |
11343788 |
1381 | dTHR; |
3280af22 |
1382 | if (PL_localizing) { |
1383 | if (PL_localizing == 1) |
565764a8 |
1384 | mg->mg_len <<= 1; |
748a9306 |
1385 | else |
565764a8 |
1386 | mg->mg_len >>= 1; |
a0d0e21e |
1387 | } |
3280af22 |
1388 | else if (PL_tainted) |
565764a8 |
1389 | mg->mg_len |= 1; |
748a9306 |
1390 | else |
565764a8 |
1391 | mg->mg_len &= ~1; |
463ee0b2 |
1392 | return 0; |
1393 | } |
1394 | |
1395 | int |
6ff81951 |
1396 | magic_getvec(SV *sv, MAGIC *mg) |
1397 | { |
1398 | SV *lsv = LvTARG(sv); |
1399 | unsigned char *s; |
1400 | unsigned long retnum; |
1401 | STRLEN lsvlen; |
1402 | I32 len; |
1403 | I32 offset; |
1404 | I32 size; |
1405 | |
1406 | if (!lsv) { |
1407 | SvOK_off(sv); |
1408 | return 0; |
1409 | } |
1410 | s = (unsigned char *) SvPV(lsv, lsvlen); |
1411 | offset = LvTARGOFF(sv); |
1412 | size = LvTARGLEN(sv); |
1413 | len = (offset + size + 7) / 8; |
1414 | |
1415 | /* Copied from pp_vec() */ |
1416 | |
1417 | if (len > lsvlen) { |
1418 | if (size <= 8) |
1419 | retnum = 0; |
1420 | else { |
1421 | offset >>= 3; |
1422 | if (size == 16) { |
1423 | if (offset >= lsvlen) |
1424 | retnum = 0; |
1425 | else |
1426 | retnum = (unsigned long) s[offset] << 8; |
1427 | } |
1428 | else if (size == 32) { |
1429 | if (offset >= lsvlen) |
1430 | retnum = 0; |
1431 | else if (offset + 1 >= lsvlen) |
1432 | retnum = (unsigned long) s[offset] << 24; |
1433 | else if (offset + 2 >= lsvlen) |
1434 | retnum = ((unsigned long) s[offset] << 24) + |
1435 | ((unsigned long) s[offset + 1] << 16); |
1436 | else |
1437 | retnum = ((unsigned long) s[offset] << 24) + |
1438 | ((unsigned long) s[offset + 1] << 16) + |
1439 | (s[offset + 2] << 8); |
1440 | } |
1441 | } |
1442 | } |
1443 | else if (size < 8) |
1444 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); |
1445 | else { |
1446 | offset >>= 3; |
1447 | if (size == 8) |
1448 | retnum = s[offset]; |
1449 | else if (size == 16) |
1450 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; |
1451 | else if (size == 32) |
1452 | retnum = ((unsigned long) s[offset] << 24) + |
1453 | ((unsigned long) s[offset + 1] << 16) + |
1454 | (s[offset + 2] << 8) + s[offset+3]; |
1455 | } |
1456 | |
1457 | sv_setuv(sv, (UV)retnum); |
1458 | return 0; |
1459 | } |
1460 | |
1461 | int |
8ac85365 |
1462 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 |
1463 | { |
1464 | do_vecset(sv); /* XXX slurp this routine */ |
1465 | return 0; |
1466 | } |
1467 | |
1468 | int |
8ac85365 |
1469 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1470 | { |
71be2cbc |
1471 | SV *targ = Nullsv; |
5f05dabc |
1472 | if (LvTARGLEN(sv)) { |
68dc0745 |
1473 | if (mg->mg_obj) { |
74e13ce4 |
1474 | SV *ahv = LvTARG(sv); |
1475 | if (SvTYPE(ahv) == SVt_PVHV) { |
1476 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1477 | if (he) |
1478 | targ = HeVAL(he); |
1479 | } |
1480 | else { |
1481 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); |
1482 | if (svp) |
1483 | targ = *svp; |
1484 | } |
68dc0745 |
1485 | } |
1486 | else { |
3c78fafa |
1487 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1488 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1489 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1490 | } |
3280af22 |
1491 | if (targ && targ != &PL_sv_undef) { |
e858de61 |
1492 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1493 | /* somebody else defined it for us */ |
1494 | SvREFCNT_dec(LvTARG(sv)); |
1495 | LvTARG(sv) = SvREFCNT_inc(targ); |
1496 | LvTARGLEN(sv) = 0; |
1497 | SvREFCNT_dec(mg->mg_obj); |
1498 | mg->mg_obj = Nullsv; |
1499 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1500 | } |
5f05dabc |
1501 | } |
71be2cbc |
1502 | else |
1503 | targ = LvTARG(sv); |
3280af22 |
1504 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
1505 | return 0; |
1506 | } |
1507 | |
1508 | int |
8ac85365 |
1509 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc |
1510 | { |
1511 | if (LvTARGLEN(sv)) |
68dc0745 |
1512 | vivify_defelem(sv); |
1513 | if (LvTARG(sv)) { |
5f05dabc |
1514 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1515 | SvSETMAGIC(LvTARG(sv)); |
1516 | } |
5f05dabc |
1517 | return 0; |
1518 | } |
1519 | |
71be2cbc |
1520 | void |
8ac85365 |
1521 | vivify_defelem(SV *sv) |
71be2cbc |
1522 | { |
e858de61 |
1523 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 |
1524 | MAGIC *mg; |
1525 | SV *value = Nullsv; |
71be2cbc |
1526 | |
68dc0745 |
1527 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1528 | return; |
68dc0745 |
1529 | if (mg->mg_obj) { |
74e13ce4 |
1530 | SV *ahv = LvTARG(sv); |
1531 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 |
1532 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1533 | if (he) |
1534 | value = HeVAL(he); |
1535 | } |
1536 | else { |
af7f9c15 |
1537 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1538 | if (svp) |
1539 | value = *svp; |
1540 | } |
3280af22 |
1541 | if (!value || value == &PL_sv_undef) |
1542 | croak(no_helem, SvPV(mg->mg_obj, PL_na)); |
71be2cbc |
1543 | } |
68dc0745 |
1544 | else { |
1545 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1546 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1547 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1548 | else { |
1549 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
1550 | if (!svp || (value = *svp) == &PL_sv_undef) |
68dc0745 |
1551 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1552 | } |
1553 | } |
3e3baf6d |
1554 | (void)SvREFCNT_inc(value); |
68dc0745 |
1555 | SvREFCNT_dec(LvTARG(sv)); |
1556 | LvTARG(sv) = value; |
71be2cbc |
1557 | LvTARGLEN(sv) = 0; |
68dc0745 |
1558 | SvREFCNT_dec(mg->mg_obj); |
1559 | mg->mg_obj = Nullsv; |
1560 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1561 | } |
1562 | |
1563 | int |
8ac85365 |
1564 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 |
1565 | { |
565764a8 |
1566 | mg->mg_len = -1; |
c6496cc7 |
1567 | SvSCREAM_off(sv); |
93a17b20 |
1568 | return 0; |
1569 | } |
1570 | |
1571 | int |
8ac85365 |
1572 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 |
1573 | { |
463ee0b2 |
1574 | sv_unmagic(sv, 'B'); |
79072805 |
1575 | SvVALID_off(sv); |
1576 | return 0; |
1577 | } |
1578 | |
1579 | int |
8ac85365 |
1580 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff |
1581 | { |
1582 | sv_unmagic(sv, 'f'); |
1583 | SvCOMPILED_off(sv); |
1584 | return 0; |
1585 | } |
1586 | |
1587 | int |
8ac85365 |
1588 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 |
1589 | { |
1590 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1591 | |
1592 | if (uf && uf->uf_set) |
1593 | (*uf->uf_set)(uf->uf_index, sv); |
1594 | return 0; |
1595 | } |
1596 | |
c277df42 |
1597 | int |
1598 | magic_freeregexp(SV *sv, MAGIC *mg) |
1599 | { |
1600 | regexp *re = (regexp *)mg->mg_obj; |
1601 | ReREFCNT_dec(re); |
1602 | return 0; |
1603 | } |
1604 | |
7a4c00b4 |
1605 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1606 | int |
8ac85365 |
1607 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 |
1608 | { |
1609 | /* |
1610 | * René Descartes said "I think not." |
1611 | * and vanished with a faint plop. |
1612 | */ |
7a4c00b4 |
1613 | if (mg->mg_ptr) { |
1614 | Safefree(mg->mg_ptr); |
1615 | mg->mg_ptr = NULL; |
565764a8 |
1616 | mg->mg_len = -1; |
7a4c00b4 |
1617 | } |
bbce6d69 |
1618 | return 0; |
1619 | } |
7a4c00b4 |
1620 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1621 | |
1622 | int |
8ac85365 |
1623 | magic_set(SV *sv, MAGIC *mg) |
79072805 |
1624 | { |
11343788 |
1625 | dTHR; |
79072805 |
1626 | register char *s; |
1627 | I32 i; |
8990e307 |
1628 | STRLEN len; |
79072805 |
1629 | switch (*mg->mg_ptr) { |
748a9306 |
1630 | case '\001': /* ^A */ |
3280af22 |
1631 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
1632 | break; |
599cee73 |
1633 | case '\002': /* ^B */ |
1634 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1635 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) |
1636 | compiling.cop_warnings = WARN_ALL; |
1637 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
1638 | compiling.cop_warnings = WARN_NONE; |
1639 | else { |
1640 | if (compiling.cop_warnings != WARN_NONE && |
1641 | compiling.cop_warnings != WARN_ALL) |
1642 | sv_setsv(compiling.cop_warnings, sv); |
1643 | else |
1644 | compiling.cop_warnings = newSVsv(sv) ; |
1645 | } |
1646 | } |
1647 | break; |
79072805 |
1648 | case '\004': /* ^D */ |
3280af22 |
1649 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1650 | DEBUG_x(dump_all()); |
1651 | break; |
28f23441 |
1652 | case '\005': /* ^E */ |
1653 | #ifdef VMS |
1654 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1655 | #else |
22fae026 |
1656 | #ifdef WIN32 |
1657 | SetLastError( SvIV(sv) ); |
1658 | #else |
f86702cc |
1659 | /* will anyone ever use this? */ |
1660 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1661 | #endif |
22fae026 |
1662 | #endif |
28f23441 |
1663 | break; |
79072805 |
1664 | case '\006': /* ^F */ |
3280af22 |
1665 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1666 | break; |
a0d0e21e |
1667 | case '\010': /* ^H */ |
3280af22 |
1668 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
1669 | break; |
9d116dd7 |
1670 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
1671 | if (PL_inplace) |
1672 | Safefree(PL_inplace); |
79072805 |
1673 | if (SvOK(sv)) |
3280af22 |
1674 | PL_inplace = savepv(SvPV(sv,PL_na)); |
79072805 |
1675 | else |
3280af22 |
1676 | PL_inplace = Nullch; |
79072805 |
1677 | break; |
28f23441 |
1678 | case '\017': /* ^O */ |
3280af22 |
1679 | if (PL_osname) |
1680 | Safefree(PL_osname); |
28f23441 |
1681 | if (SvOK(sv)) |
3280af22 |
1682 | PL_osname = savepv(SvPV(sv,PL_na)); |
28f23441 |
1683 | else |
3280af22 |
1684 | PL_osname = Nullch; |
28f23441 |
1685 | break; |
79072805 |
1686 | case '\020': /* ^P */ |
3280af22 |
1687 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1688 | break; |
1689 | case '\024': /* ^T */ |
88e89b8a |
1690 | #ifdef BIG_TIME |
6b88bc9c |
1691 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
1692 | #else |
3280af22 |
1693 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1694 | #endif |
79072805 |
1695 | break; |
1696 | case '\027': /* ^W */ |
599cee73 |
1697 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1698 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1699 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; |
1700 | } |
79072805 |
1701 | break; |
1702 | case '.': |
3280af22 |
1703 | if (PL_localizing) { |
1704 | if (PL_localizing == 1) |
1705 | save_sptr((SV**)&PL_last_in_gv); |
748a9306 |
1706 | } |
3280af22 |
1707 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1708 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); |
79072805 |
1709 | break; |
1710 | case '^': |
3280af22 |
1711 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
1712 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na)); |
1713 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1714 | break; |
1715 | case '~': |
3280af22 |
1716 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
1717 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na)); |
1718 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1719 | break; |
1720 | case '=': |
3280af22 |
1721 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1722 | break; |
1723 | case '-': |
3280af22 |
1724 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1725 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1726 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
1727 | break; |
1728 | case '%': |
3280af22 |
1729 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1730 | break; |
1731 | case '|': |
4b65379b |
1732 | { |
3280af22 |
1733 | IO *io = GvIOp(PL_defoutgv); |
4b65379b |
1734 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1735 | IoFLAGS(io) &= ~IOf_FLUSH; |
1736 | else { |
1737 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1738 | PerlIO *ofp = IoOFP(io); |
1739 | if (ofp) |
1740 | (void)PerlIO_flush(ofp); |
1741 | IoFLAGS(io) |= IOf_FLUSH; |
1742 | } |
1743 | } |
79072805 |
1744 | } |
1745 | break; |
1746 | case '*': |
463ee0b2 |
1747 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 |
1748 | PL_multiline = (i != 0); |
79072805 |
1749 | break; |
1750 | case '/': |
3280af22 |
1751 | SvREFCNT_dec(PL_nrs); |
1752 | PL_nrs = newSVsv(sv); |
1753 | SvREFCNT_dec(PL_rs); |
1754 | PL_rs = SvREFCNT_inc(PL_nrs); |
79072805 |
1755 | break; |
1756 | case '\\': |
3280af22 |
1757 | if (PL_ors) |
1758 | Safefree(PL_ors); |
e3c19b7b |
1759 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 |
1760 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b |
1761 | else { |
3280af22 |
1762 | PL_ors = Nullch; |
1763 | PL_orslen = 0; |
e3c19b7b |
1764 | } |
79072805 |
1765 | break; |
1766 | case ',': |
3280af22 |
1767 | if (PL_ofs) |
1768 | Safefree(PL_ofs); |
1769 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); |
79072805 |
1770 | break; |
1771 | case '#': |
3280af22 |
1772 | if (PL_ofmt) |
1773 | Safefree(PL_ofmt); |
1774 | PL_ofmt = savepv(SvPV(sv,PL_na)); |
79072805 |
1775 | break; |
1776 | case '[': |
3280af22 |
1777 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1778 | break; |
1779 | case '?': |
ff0cee69 |
1780 | #ifdef COMPLEX_STATUS |
6b88bc9c |
1781 | if (PL_localizing == 2) { |
1782 | PL_statusvalue = LvTARGOFF(sv); |
1783 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
1784 | } |
1785 | else |
1786 | #endif |
1787 | #ifdef VMSISH_STATUS |
1788 | if (VMSISH_STATUS) |
1789 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1790 | else |
1791 | #endif |
1792 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1793 | break; |
1794 | case '!': |
78987ded |
1795 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc |
1796 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1797 | break; |
1798 | case '<': |
3280af22 |
1799 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1800 | if (PL_delaymagic) { |
1801 | PL_delaymagic |= DM_RUID; |
79072805 |
1802 | break; /* don't do magic till later */ |
1803 | } |
1804 | #ifdef HAS_SETRUID |
b28d0864 |
1805 | (void)setruid((Uid_t)PL_uid); |
79072805 |
1806 | #else |
1807 | #ifdef HAS_SETREUID |
3280af22 |
1808 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
1809 | #else |
85e6fe83 |
1810 | #ifdef HAS_SETRESUID |
b28d0864 |
1811 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1812 | #else |
b28d0864 |
1813 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1814 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
1815 | else { |
b28d0864 |
1816 | PL_uid = (I32)PerlProc_getuid(); |
463ee0b2 |
1817 | croak("setruid() not implemented"); |
a0d0e21e |
1818 | } |
79072805 |
1819 | #endif |
1820 | #endif |
85e6fe83 |
1821 | #endif |
3280af22 |
1822 | PL_uid = (I32)PerlProc_getuid(); |
1823 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1824 | break; |
1825 | case '>': |
3280af22 |
1826 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1827 | if (PL_delaymagic) { |
1828 | PL_delaymagic |= DM_EUID; |
79072805 |
1829 | break; /* don't do magic till later */ |
1830 | } |
1831 | #ifdef HAS_SETEUID |
3280af22 |
1832 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
1833 | #else |
1834 | #ifdef HAS_SETREUID |
b28d0864 |
1835 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
1836 | #else |
1837 | #ifdef HAS_SETRESUID |
6b88bc9c |
1838 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
1839 | #else |
b28d0864 |
1840 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1841 | PerlProc_setuid(PL_euid); |
a0d0e21e |
1842 | else { |
b28d0864 |
1843 | PL_euid = (I32)PerlProc_geteuid(); |
463ee0b2 |
1844 | croak("seteuid() not implemented"); |
a0d0e21e |
1845 | } |
79072805 |
1846 | #endif |
1847 | #endif |
85e6fe83 |
1848 | #endif |
3280af22 |
1849 | PL_euid = (I32)PerlProc_geteuid(); |
1850 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1851 | break; |
1852 | case '(': |
3280af22 |
1853 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1854 | if (PL_delaymagic) { |
1855 | PL_delaymagic |= DM_RGID; |
79072805 |
1856 | break; /* don't do magic till later */ |
1857 | } |
1858 | #ifdef HAS_SETRGID |
b28d0864 |
1859 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
1860 | #else |
1861 | #ifdef HAS_SETREGID |
3280af22 |
1862 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
1863 | #else |
1864 | #ifdef HAS_SETRESGID |
b28d0864 |
1865 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1866 | #else |
b28d0864 |
1867 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1868 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
1869 | else { |
b28d0864 |
1870 | PL_gid = (I32)PerlProc_getgid(); |
463ee0b2 |
1871 | croak("setrgid() not implemented"); |
748a9306 |
1872 | } |
79072805 |
1873 | #endif |
1874 | #endif |
85e6fe83 |
1875 | #endif |
3280af22 |
1876 | PL_gid = (I32)PerlProc_getgid(); |
1877 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1878 | break; |
1879 | case ')': |
5cd24f17 |
1880 | #ifdef HAS_SETGROUPS |
1881 | { |
3280af22 |
1882 | char *p = SvPV(sv, PL_na); |
5cd24f17 |
1883 | Groups_t gary[NGROUPS]; |
1884 | |
1885 | SET_NUMERIC_STANDARD(); |
1886 | while (isSPACE(*p)) |
1887 | ++p; |
3280af22 |
1888 | PL_egid = I_V(atof(p)); |
5cd24f17 |
1889 | for (i = 0; i < NGROUPS; ++i) { |
1890 | while (*p && !isSPACE(*p)) |
1891 | ++p; |
1892 | while (isSPACE(*p)) |
1893 | ++p; |
1894 | if (!*p) |
1895 | break; |
1896 | gary[i] = I_V(atof(p)); |
1897 | } |
8cc95fdb |
1898 | if (i) |
1899 | (void)setgroups(i, gary); |
5cd24f17 |
1900 | } |
1901 | #else /* HAS_SETGROUPS */ |
b28d0864 |
1902 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1903 | #endif /* HAS_SETGROUPS */ |
3280af22 |
1904 | if (PL_delaymagic) { |
1905 | PL_delaymagic |= DM_EGID; |
79072805 |
1906 | break; /* don't do magic till later */ |
1907 | } |
1908 | #ifdef HAS_SETEGID |
3280af22 |
1909 | (void)setegid((Gid_t)PL_egid); |
79072805 |
1910 | #else |
1911 | #ifdef HAS_SETREGID |
b28d0864 |
1912 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
1913 | #else |
1914 | #ifdef HAS_SETRESGID |
b28d0864 |
1915 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
1916 | #else |
b28d0864 |
1917 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1918 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
1919 | else { |
b28d0864 |
1920 | PL_egid = (I32)PerlProc_getegid(); |
463ee0b2 |
1921 | croak("setegid() not implemented"); |
748a9306 |
1922 | } |
79072805 |
1923 | #endif |
1924 | #endif |
85e6fe83 |
1925 | #endif |
3280af22 |
1926 | PL_egid = (I32)PerlProc_getegid(); |
1927 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1928 | break; |
1929 | case ':': |
3280af22 |
1930 | PL_chopset = SvPV_force(sv,PL_na); |
79072805 |
1931 | break; |
1932 | case '0': |
3280af22 |
1933 | if (!PL_origalen) { |
1934 | s = PL_origargv[0]; |
79072805 |
1935 | s += strlen(s); |
1936 | /* See if all the arguments are contiguous in memory */ |
3280af22 |
1937 | for (i = 1; i < PL_origargc; i++) { |
1938 | if (PL_origargv[i] == s + 1 |
fb73857a |
1939 | #ifdef OS2 |
6b88bc9c |
1940 | || PL_origargv[i] == s + 2 |
fb73857a |
1941 | #endif |
1942 | ) |
79072805 |
1943 | s += strlen(++s); /* this one is ok too */ |
fb73857a |
1944 | else |
1945 | break; |
79072805 |
1946 | } |
bbce6d69 |
1947 | /* can grab env area too? */ |
3280af22 |
1948 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a |
1949 | #ifdef OS2 |
6b88bc9c |
1950 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a |
1951 | #endif |
1952 | )) { |
66b1d557 |
1953 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
1954 | /* force copy of environment */ |
3280af22 |
1955 | for (i = 0; PL_origenviron[i]; i++) |
1956 | if (PL_origenviron[i] == s + 1) |
79072805 |
1957 | s += strlen(++s); |
fb73857a |
1958 | else |
1959 | break; |
79072805 |
1960 | } |
3280af22 |
1961 | PL_origalen = s - PL_origargv[0]; |
79072805 |
1962 | } |
a0d0e21e |
1963 | s = SvPV_force(sv,len); |
8990e307 |
1964 | i = len; |
3280af22 |
1965 | if (i >= PL_origalen) { |
1966 | i = PL_origalen; |
fb73857a |
1967 | /* don't allow system to limit $0 seen by script */ |
1968 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
3280af22 |
1969 | Copy(s, PL_origargv[0], i, char); |
1970 | s = PL_origargv[0]+i; |
fb73857a |
1971 | *s = '\0'; |
79072805 |
1972 | } |
1973 | else { |
3280af22 |
1974 | Copy(s, PL_origargv[0], i, char); |
1975 | s = PL_origargv[0]+i; |
79072805 |
1976 | *s++ = '\0'; |
3280af22 |
1977 | while (++i < PL_origalen) |
8990e307 |
1978 | *s++ = ' '; |
3280af22 |
1979 | s = PL_origargv[0]+i; |
1980 | for (i = 1; i < PL_origargc; i++) |
1981 | PL_origargv[i] = Nullch; |
79072805 |
1982 | } |
1983 | break; |
a863c7d1 |
1984 | #ifdef USE_THREADS |
1985 | case '@': |
38a03e6e |
1986 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
1987 | break; |
1988 | #endif /* USE_THREADS */ |
79072805 |
1989 | } |
1990 | return 0; |
1991 | } |
1992 | |
f93b4edd |
1993 | #ifdef USE_THREADS |
1994 | int |
8ac85365 |
1995 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd |
1996 | { |
1997 | dTHR; |
8b73bbec |
1998 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 |
1999 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
2000 | if (MgOWNER(mg)) |
2001 | croak("panic: magic_mutexfree"); |
2002 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2003 | COND_DESTROY(MgCONDP(mg)); |
e55aaa0e |
2004 | SvREFCNT_dec(sv); |
f93b4edd |
2005 | return 0; |
2006 | } |
2007 | #endif /* USE_THREADS */ |
2008 | |
79072805 |
2009 | I32 |
8ac85365 |
2010 | whichsig(char *sig) |
79072805 |
2011 | { |
2012 | register char **sigv; |
2013 | |
2014 | for (sigv = sig_name+1; *sigv; sigv++) |
2015 | if (strEQ(sig,*sigv)) |
8e07c86e |
2016 | return sig_num[sigv - sig_name]; |
79072805 |
2017 | #ifdef SIGCLD |
2018 | if (strEQ(sig,"CHLD")) |
2019 | return SIGCLD; |
2020 | #endif |
2021 | #ifdef SIGCHLD |
2022 | if (strEQ(sig,"CLD")) |
2023 | return SIGCHLD; |
2024 | #endif |
2025 | return 0; |
2026 | } |
2027 | |
84902520 |
2028 | static SV* sig_sv; |
2029 | |
76e3520e |
2030 | STATIC void |
8ac85365 |
2031 | unwind_handler_stack(void *p) |
84902520 |
2032 | { |
ff26ac79 |
2033 | dTHR; |
84902520 |
2034 | U32 flags = *(U32*)p; |
2035 | |
2036 | if (flags & 1) |
3280af22 |
2037 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 |
2038 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2039 | if (flags & 64) |
2040 | SvREFCNT_dec(sig_sv); |
2041 | } |
2042 | |
ecfc5424 |
2043 | Signal_t |
8ac85365 |
2044 | sighandler(int sig) |
79072805 |
2045 | { |
2046 | dSP; |
00d579c5 |
2047 | GV *gv = Nullgv; |
a0d0e21e |
2048 | HV *st; |
3280af22 |
2049 | SV *sv, *tSv = PL_Sv; |
00d579c5 |
2050 | CV *cv = Nullcv; |
533c011a |
2051 | OP *myop = PL_op; |
84902520 |
2052 | U32 flags = 0; |
3280af22 |
2053 | I32 o_save_i = PL_savestack_ix, type; |
2054 | XPV *tXpv = PL_Xpv; |
84902520 |
2055 | |
3280af22 |
2056 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2057 | flags |= 1; |
3280af22 |
2058 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2059 | flags |= 4; |
3280af22 |
2060 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 |
2061 | flags |= 8; |
3280af22 |
2062 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2063 | flags |= 16; |
2064 | |
ff0cee69 |
2065 | if (!psig_ptr[sig]) |
2066 | die("Signal SIG%s received, but no signal handler set.\n", |
2067 | sig_name[sig]); |
2068 | |
84902520 |
2069 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2070 | infinity, so we fix 4 (in fact 5): */ |
2071 | if (flags & 1) { |
3280af22 |
2072 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2073 | o_save_i = PL_savestack_ix; |
565764a8 |
2074 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 |
2075 | } |
2076 | if (flags & 4) |
3280af22 |
2077 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2078 | if (flags & 8) { |
3280af22 |
2079 | PL_retstack_ix++; |
2080 | PL_retstack[PL_retstack_ix] = NULL; |
84902520 |
2081 | } |
2082 | if (flags & 16) |
3280af22 |
2083 | PL_scopestack_ix += 1; |
84902520 |
2084 | /* sv_2cv is too complicated, try a simpler variant first: */ |
2085 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) |
2086 | || SvTYPE(cv) != SVt_PVCV) |
2087 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
2088 | |
a0d0e21e |
2089 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2090 | if (ckWARN(WARN_SIGNAL)) |
2091 | warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
00d579c5 |
2092 | sig_name[sig], (gv ? GvENAME(gv) |
2093 | : ((cv && CvGV(cv)) |
2094 | ? GvENAME(CvGV(cv)) |
2095 | : "__ANON__"))); |
2096 | goto cleanup; |
79072805 |
2097 | } |
2098 | |
84902520 |
2099 | if(psig_name[sig]) { |
88e89b8a |
2100 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 |
2101 | flags |= 64; |
2102 | sig_sv = sv; |
2103 | } else { |
ff0cee69 |
2104 | sv = sv_newmortal(); |
2105 | sv_setpv(sv,sig_name[sig]); |
88e89b8a |
2106 | } |
e336de0d |
2107 | |
e788e7d3 |
2108 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2109 | PUSHMARK(SP); |
79072805 |
2110 | PUSHs(sv); |
79072805 |
2111 | PUTBACK; |
a0d0e21e |
2112 | |
2113 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
2114 | |
d3acc0f7 |
2115 | POPSTACK; |
00d579c5 |
2116 | cleanup: |
84902520 |
2117 | if (flags & 1) |
3280af22 |
2118 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 |
2119 | if (flags & 4) |
3280af22 |
2120 | PL_markstack_ptr--; |
84902520 |
2121 | if (flags & 8) |
3280af22 |
2122 | PL_retstack_ix--; |
84902520 |
2123 | if (flags & 16) |
3280af22 |
2124 | PL_scopestack_ix -= 1; |
84902520 |
2125 | if (flags & 64) |
2126 | SvREFCNT_dec(sv); |
533c011a |
2127 | PL_op = myop; /* Apparently not needed... */ |
84902520 |
2128 | |
3280af22 |
2129 | PL_Sv = tSv; /* Restore global temporaries. */ |
2130 | PL_Xpv = tXpv; |
79072805 |
2131 | return; |
2132 | } |
4e35701f |
2133 | |
2134 | |