Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
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 LW |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
5cd24f17 | 23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 | |
26 | # endif | |
27 | #endif | |
28 | ||
455ece5e AD |
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 GS |
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 AD |
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 AD |
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 AD |
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 | { | |
3c8a4456 GS |
97 | I32 popval = SSPOPINT; |
98 | assert(popval == SAVEt_DESTRUCTOR); | |
455ece5e | 99 | PL_savestack_ix -= 2; |
3c8a4456 GS |
100 | popval = SSPOPINT; |
101 | assert(popval == SAVEt_ALLOC); | |
102 | popval = SSPOPINT; | |
103 | PL_savestack_ix -= popval; | |
455ece5e AD |
104 | } |
105 | ||
c07a80fd | 106 | } |
107 | ||
8990e307 | 108 | void |
8ac85365 | 109 | mg_magical(SV *sv) |
8990e307 LW |
110 | { |
111 | MAGIC* mg; | |
112 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
113 | MGVTBL* vtbl = mg->mg_virtual; | |
114 | if (vtbl) { | |
76e3520e | 115 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
116 | SvGMAGICAL_on(sv); |
117 | if (vtbl->svt_set) | |
118 | SvSMAGICAL_on(sv); | |
76e3520e | 119 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 LW |
120 | SvRMAGICAL_on(sv); |
121 | } | |
122 | } | |
123 | } | |
124 | ||
79072805 | 125 | int |
8ac85365 | 126 | mg_get(SV *sv) |
79072805 | 127 | { |
46124e9e | 128 | dTHR; |
455ece5e | 129 | I32 mgs_ix; |
79072805 | 130 | MAGIC* mg; |
c6496cc7 | 131 | MAGIC** mgp; |
760ac839 | 132 | int mgp_valid = 0; |
463ee0b2 | 133 | |
455ece5e AD |
134 | mgs_ix = SSNEW(sizeof(MGS)); |
135 | save_magic(mgs_ix, sv); | |
463ee0b2 | 136 | |
c6496cc7 | 137 | mgp = &SvMAGIC(sv); |
138 | while ((mg = *mgp) != 0) { | |
79072805 | 139 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e GS |
140 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
141 | (VTBL->svt_get)(sv, mg); | |
c6496cc7 | 142 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
143 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
144 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 145 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 146 | } |
c6496cc7 | 147 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 148 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 149 | mgp = &mg->mg_moremagic; |
760ac839 LW |
150 | mgp_valid = 1; |
151 | } | |
152 | else | |
153 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 154 | } |
463ee0b2 | 155 | |
455ece5e | 156 | restore_magic((void*)mgs_ix); |
79072805 LW |
157 | return 0; |
158 | } | |
159 | ||
160 | int | |
8ac85365 | 161 | mg_set(SV *sv) |
79072805 | 162 | { |
46124e9e | 163 | dTHR; |
455ece5e | 164 | I32 mgs_ix; |
79072805 | 165 | MAGIC* mg; |
463ee0b2 LW |
166 | MAGIC* nextmg; |
167 | ||
455ece5e AD |
168 | mgs_ix = SSNEW(sizeof(MGS)); |
169 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
170 | |
171 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 172 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 173 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
174 | if (mg->mg_flags & MGf_GSKIP) { |
175 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 176 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 177 | } |
76e3520e GS |
178 | if (vtbl && (vtbl->svt_set != NULL)) |
179 | (VTBL->svt_set)(sv, mg); | |
79072805 | 180 | } |
463ee0b2 | 181 | |
455ece5e | 182 | restore_magic((void*)mgs_ix); |
79072805 LW |
183 | return 0; |
184 | } | |
185 | ||
186 | U32 | |
565764a8 | 187 | mg_length(SV *sv) |
79072805 LW |
188 | { |
189 | MAGIC* mg; | |
748a9306 | 190 | char *junk; |
463ee0b2 | 191 | STRLEN len; |
463ee0b2 | 192 | |
79072805 LW |
193 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
194 | MGVTBL* vtbl = mg->mg_virtual; | |
76e3520e | 195 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e | 196 | I32 mgs_ix; |
48e43a1c | 197 | |
455ece5e AD |
198 | mgs_ix = SSNEW(sizeof(MGS)); |
199 | save_magic(mgs_ix, sv); | |
a0d0e21e | 200 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e | 201 | len = (VTBL->svt_len)(sv, mg); |
455ece5e | 202 | restore_magic((void*)mgs_ix); |
85e6fe83 LW |
203 | return len; |
204 | } | |
205 | } | |
206 | ||
748a9306 | 207 | junk = SvPV(sv, len); |
463ee0b2 | 208 | return len; |
79072805 LW |
209 | } |
210 | ||
93965878 NIS |
211 | I32 |
212 | mg_size(SV *sv) | |
213 | { | |
214 | MAGIC* mg; | |
215 | I32 len; | |
216 | ||
217 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
218 | MGVTBL* vtbl = mg->mg_virtual; | |
565764a8 | 219 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e AD |
220 | I32 mgs_ix; |
221 | ||
222 | mgs_ix = SSNEW(sizeof(MGS)); | |
223 | save_magic(mgs_ix, sv); | |
93965878 | 224 | /* omit MGf_GSKIP -- not changed here */ |
565764a8 | 225 | len = (VTBL->svt_len)(sv, mg); |
455ece5e | 226 | restore_magic((void*)mgs_ix); |
93965878 NIS |
227 | return len; |
228 | } | |
229 | } | |
230 | ||
231 | switch(SvTYPE(sv)) { | |
232 | case SVt_PVAV: | |
233 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
234 | return len; | |
235 | case SVt_PVHV: | |
236 | /* FIXME */ | |
237 | default: | |
238 | croak("Size magic not implemented"); | |
239 | break; | |
240 | } | |
241 | return 0; | |
242 | } | |
243 | ||
79072805 | 244 | int |
8ac85365 | 245 | mg_clear(SV *sv) |
79072805 | 246 | { |
455ece5e | 247 | I32 mgs_ix; |
79072805 | 248 | MAGIC* mg; |
463ee0b2 | 249 | |
455ece5e AD |
250 | mgs_ix = SSNEW(sizeof(MGS)); |
251 | save_magic(mgs_ix, sv); | |
463ee0b2 | 252 | |
79072805 LW |
253 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
254 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
255 | /* omit GSKIP -- never set here */ |
256 | ||
76e3520e GS |
257 | if (vtbl && (vtbl->svt_clear != NULL)) |
258 | (VTBL->svt_clear)(sv, mg); | |
79072805 | 259 | } |
463ee0b2 | 260 | |
455ece5e | 261 | restore_magic((void*)mgs_ix); |
79072805 LW |
262 | return 0; |
263 | } | |
264 | ||
93a17b20 | 265 | MAGIC* |
8ac85365 | 266 | mg_find(SV *sv, int type) |
93a17b20 LW |
267 | { |
268 | MAGIC* mg; | |
93a17b20 LW |
269 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
270 | if (mg->mg_type == type) | |
271 | return mg; | |
272 | } | |
273 | return 0; | |
274 | } | |
275 | ||
79072805 | 276 | int |
8ac85365 | 277 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 | 278 | { |
463ee0b2 | 279 | int count = 0; |
79072805 | 280 | MAGIC* mg; |
463ee0b2 LW |
281 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
282 | if (isUPPER(mg->mg_type)) { | |
33c27489 GS |
283 | sv_magic(nsv, |
284 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj, | |
285 | toLOWER(mg->mg_type), key, klen); | |
463ee0b2 | 286 | count++; |
79072805 | 287 | } |
79072805 | 288 | } |
463ee0b2 | 289 | return count; |
79072805 LW |
290 | } |
291 | ||
292 | int | |
8ac85365 | 293 | mg_free(SV *sv) |
79072805 LW |
294 | { |
295 | MAGIC* mg; | |
296 | MAGIC* moremagic; | |
297 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
298 | MGVTBL* vtbl = mg->mg_virtual; | |
299 | moremagic = mg->mg_moremagic; | |
76e3520e GS |
300 | if (vtbl && (vtbl->svt_free != NULL)) |
301 | (VTBL->svt_free)(sv, mg); | |
93a17b20 | 302 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 303 | if (mg->mg_len >= 0) |
88e89b8a | 304 | Safefree(mg->mg_ptr); |
565764a8 | 305 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 306 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 307 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 308 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
309 | Safefree(mg); |
310 | } | |
311 | SvMAGIC(sv) = 0; | |
312 | return 0; | |
313 | } | |
314 | ||
315 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
316 | #include <signal.h> | |
317 | #endif | |
318 | ||
942e002e | 319 | U32 |
6cef1e77 IZ |
320 | magic_regdata_cnt(SV *sv, MAGIC *mg) |
321 | { | |
322 | dTHR; | |
323 | register char *s; | |
324 | register I32 i; | |
325 | register REGEXP *rx; | |
326 | char *t; | |
327 | ||
328 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) | |
329 | return rx->lastparen; | |
942e002e | 330 | return (U32)-1; |
6cef1e77 IZ |
331 | } |
332 | ||
333 | int | |
334 | magic_regdatum_get(SV *sv, MAGIC *mg) | |
335 | { | |
336 | dTHR; | |
337 | register I32 paren; | |
338 | register char *s; | |
339 | register I32 i; | |
340 | register REGEXP *rx; | |
341 | char *t; | |
342 | ||
343 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
344 | paren = mg->mg_len; | |
345 | if (paren < 0) | |
346 | return 0; | |
347 | if (paren <= rx->nparens && | |
348 | (s = rx->startp[paren]) && | |
349 | (t = rx->endp[paren])) | |
350 | { | |
351 | if (mg->mg_obj) /* @+ */ | |
352 | i = t - rx->subbase; | |
353 | else /* @- */ | |
354 | i = s - rx->subbase; | |
355 | sv_setiv(sv,i); | |
356 | } | |
357 | } | |
358 | return 0; | |
359 | } | |
360 | ||
93a17b20 | 361 | U32 |
8ac85365 | 362 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 363 | { |
a863c7d1 | 364 | dTHR; |
93a17b20 LW |
365 | register I32 paren; |
366 | register char *s; | |
367 | register I32 i; | |
d9f97599 | 368 | register REGEXP *rx; |
748a9306 | 369 | char *t; |
93a17b20 LW |
370 | |
371 | switch (*mg->mg_ptr) { | |
372 | case '1': case '2': case '3': case '4': | |
373 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 374 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
93a17b20 LW |
375 | paren = atoi(mg->mg_ptr); |
376 | getparen: | |
d9f97599 GS |
377 | if (paren <= rx->nparens && |
378 | (s = rx->startp[paren]) && | |
379 | (t = rx->endp[paren])) | |
bbce6d69 | 380 | { |
748a9306 | 381 | i = t - s; |
71be2cbc | 382 | if (i >= 0) |
93a17b20 | 383 | return i; |
93a17b20 | 384 | } |
93a17b20 | 385 | } |
748a9306 | 386 | return 0; |
93a17b20 | 387 | case '+': |
3280af22 | 388 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 389 | paren = rx->lastparen; |
13f57bf8 CS |
390 | if (paren) |
391 | goto getparen; | |
93a17b20 | 392 | } |
748a9306 | 393 | return 0; |
93a17b20 | 394 | case '`': |
3280af22 | 395 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
396 | if ((s = rx->subbeg) && rx->startp[0]) { |
397 | i = rx->startp[0] - s; | |
71be2cbc | 398 | if (i >= 0) |
93a17b20 | 399 | return i; |
93a17b20 | 400 | } |
93a17b20 | 401 | } |
748a9306 | 402 | return 0; |
93a17b20 | 403 | case '\'': |
3280af22 | 404 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
405 | if (rx->subend && (s = rx->endp[0])) { |
406 | i = rx->subend - s; | |
13f57bf8 | 407 | if (i >= 0) |
5cd24f17 | 408 | return i; |
93a17b20 | 409 | } |
93a17b20 | 410 | } |
748a9306 | 411 | return 0; |
93a17b20 | 412 | case ',': |
3280af22 | 413 | return (STRLEN)PL_ofslen; |
93a17b20 | 414 | case '\\': |
3280af22 | 415 | return (STRLEN)PL_orslen; |
93a17b20 LW |
416 | } |
417 | magic_get(sv,mg); | |
418 | if (!SvPOK(sv) && SvNIOK(sv)) | |
3280af22 | 419 | sv_2pv(sv, &PL_na); |
93a17b20 LW |
420 | if (SvPOK(sv)) |
421 | return SvCUR(sv); | |
422 | return 0; | |
423 | } | |
424 | ||
599cee73 PM |
425 | #if 0 |
426 | static char * | |
427 | printW(sv) | |
428 | SV * sv ; | |
429 | { | |
430 | #if 1 | |
431 | return "" ; | |
432 | ||
433 | #else | |
434 | int i ; | |
435 | static char buffer[50] ; | |
436 | char buf1[20] ; | |
437 | char * p ; | |
438 | ||
439 | ||
440 | sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ; | |
441 | p = SvPVX(sv) ; | |
442 | for (i = 0; i < SvCUR(sv) ; ++ i) { | |
443 | sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ; | |
444 | strcat(buffer, buf1) ; | |
445 | } | |
446 | ||
447 | return buffer ; | |
448 | ||
449 | #endif | |
450 | } | |
451 | #endif | |
452 | ||
79072805 | 453 | int |
8ac85365 | 454 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 455 | { |
a863c7d1 | 456 | dTHR; |
79072805 LW |
457 | register I32 paren; |
458 | register char *s; | |
459 | register I32 i; | |
d9f97599 | 460 | register REGEXP *rx; |
748a9306 | 461 | char *t; |
79072805 LW |
462 | |
463 | switch (*mg->mg_ptr) { | |
748a9306 | 464 | case '\001': /* ^A */ |
3280af22 | 465 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 466 | break; |
599cee73 PM |
467 | case '\002': /* ^B */ |
468 | /* printf("magic_get $^B: ") ; */ | |
e24b16f9 | 469 | if (PL_curcop->cop_warnings == WARN_NONE) |
599cee73 PM |
470 | /* printf("WARN_NONE\n"), */ |
471 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
e24b16f9 | 472 | else if (PL_curcop->cop_warnings == WARN_ALL) |
599cee73 PM |
473 | /* printf("WARN_ALL\n"), */ |
474 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
475 | else | |
e24b16f9 GS |
476 | /* printf("some %s\n", printW(PL_curcop->cop_warnings)), */ |
477 | sv_setsv(sv, PL_curcop->cop_warnings); | |
599cee73 | 478 | break; |
79072805 | 479 | case '\004': /* ^D */ |
3280af22 | 480 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 | 481 | break; |
28f23441 | 482 | case '\005': /* ^E */ |
483 | #ifdef VMS | |
484 | { | |
485 | # include <descrip.h> | |
486 | # include <starlet.h> | |
487 | char msg[255]; | |
488 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 489 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 490 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
491 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
492 | else | |
493 | sv_setpv(sv,""); | |
494 | } | |
495 | #else | |
88e89b8a | 496 | #ifdef OS2 |
fb73857a | 497 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
498 | sv_setnv(sv, (double)errno); | |
499 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
500 | } else { | |
017f25f1 IZ |
501 | if (errno != errno_isOS2) { |
502 | int tmp = _syserrno(); | |
503 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
504 | Perl_rc = tmp; | |
505 | } | |
fb73857a | 506 | sv_setnv(sv, (double)Perl_rc); |
507 | sv_setpv(sv, os2error(Perl_rc)); | |
508 | } | |
88e89b8a | 509 | #else |
22fae026 TM |
510 | #ifdef WIN32 |
511 | { | |
512 | DWORD dwErr = GetLastError(); | |
513 | sv_setnv(sv, (double)dwErr); | |
514 | if (dwErr) | |
76e3520e GS |
515 | { |
516 | #ifdef PERL_OBJECT | |
517 | char *sMsg; | |
518 | DWORD dwLen; | |
519 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); | |
520 | sv_setpvn(sv, sMsg, dwLen); | |
521 | PerlProc_FreeBuf(sMsg); | |
522 | #else | |
22fae026 | 523 | win32_str_os_error(sv, dwErr); |
76e3520e GS |
524 | #endif |
525 | } | |
22fae026 TM |
526 | else |
527 | sv_setpv(sv, ""); | |
528 | SetLastError(dwErr); | |
529 | } | |
530 | #else | |
946ec16e | 531 | sv_setnv(sv, (double)errno); |
28f23441 | 532 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
533 | #endif | |
88e89b8a | 534 | #endif |
22fae026 | 535 | #endif |
946ec16e | 536 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 537 | break; |
79072805 | 538 | case '\006': /* ^F */ |
3280af22 | 539 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 540 | break; |
a0d0e21e | 541 | case '\010': /* ^H */ |
3280af22 | 542 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 543 | break; |
9d116dd7 | 544 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
545 | if (PL_inplace) |
546 | sv_setpv(sv, PL_inplace); | |
79072805 | 547 | else |
3280af22 | 548 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 549 | break; |
28f23441 | 550 | case '\017': /* ^O */ |
3280af22 | 551 | sv_setpv(sv, PL_osname); |
28f23441 | 552 | break; |
79072805 | 553 | case '\020': /* ^P */ |
3280af22 | 554 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 555 | break; |
fb73857a | 556 | case '\023': /* ^S */ |
d58bf5aa MB |
557 | { |
558 | dTHR; | |
3280af22 | 559 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 560 | SvOK_off(sv); |
3280af22 | 561 | else if (PL_in_eval) |
d58bf5aa MB |
562 | sv_setiv(sv, 1); |
563 | else | |
564 | sv_setiv(sv, 0); | |
565 | } | |
fb73857a | 566 | break; |
79072805 | 567 | case '\024': /* ^T */ |
88e89b8a | 568 | #ifdef BIG_TIME |
6b88bc9c | 569 | sv_setnv(sv, PL_basetime); |
88e89b8a | 570 | #else |
3280af22 | 571 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 572 | #endif |
79072805 LW |
573 | break; |
574 | case '\027': /* ^W */ | |
599cee73 | 575 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 LW |
576 | break; |
577 | case '1': case '2': case '3': case '4': | |
578 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 579 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
a863c7d1 MB |
580 | /* |
581 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
582 | * XXX Does the new way break anything? | |
583 | */ | |
584 | paren = atoi(mg->mg_ptr); | |
79072805 | 585 | getparen: |
d9f97599 GS |
586 | if (paren <= rx->nparens && |
587 | (s = rx->startp[paren]) && | |
588 | (t = rx->endp[paren])) | |
bbce6d69 | 589 | { |
748a9306 | 590 | i = t - s; |
13f57bf8 | 591 | getrx: |
748a9306 | 592 | if (i >= 0) { |
13f57bf8 | 593 | bool was_tainted; |
3280af22 NIS |
594 | if (PL_tainting) { |
595 | was_tainted = PL_tainted; | |
596 | PL_tainted = FALSE; | |
13f57bf8 | 597 | } |
79072805 | 598 | sv_setpvn(sv,s,i); |
3280af22 NIS |
599 | if (PL_tainting) |
600 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
601 | break; |
602 | } | |
79072805 | 603 | } |
79072805 | 604 | } |
3280af22 | 605 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
606 | break; |
607 | case '+': | |
3280af22 | 608 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 609 | paren = rx->lastparen; |
a0d0e21e LW |
610 | if (paren) |
611 | goto getparen; | |
79072805 | 612 | } |
3280af22 | 613 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
614 | break; |
615 | case '`': | |
3280af22 | 616 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
617 | if ((s = rx->subbeg) && rx->startp[0]) { |
618 | i = rx->startp[0] - s; | |
13f57bf8 | 619 | goto getrx; |
79072805 | 620 | } |
79072805 | 621 | } |
3280af22 | 622 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
623 | break; |
624 | case '\'': | |
3280af22 | 625 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
626 | if (rx->subend && (s = rx->endp[0])) { |
627 | i = rx->subend - s; | |
13f57bf8 | 628 | goto getrx; |
79072805 | 629 | } |
79072805 | 630 | } |
3280af22 | 631 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
632 | break; |
633 | case '.': | |
634 | #ifndef lint | |
3280af22 NIS |
635 | if (GvIO(PL_last_in_gv)) { |
636 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
637 | } |
638 | #endif | |
639 | break; | |
640 | case '?': | |
809a5acc | 641 | { |
809a5acc | 642 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 643 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
644 | LvTARGOFF(sv) = PL_statusvalue; |
645 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 646 | #endif |
809a5acc | 647 | } |
79072805 LW |
648 | break; |
649 | case '^': | |
3280af22 | 650 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
651 | if (s) |
652 | sv_setpv(sv,s); | |
653 | else { | |
3280af22 | 654 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
655 | sv_catpv(sv,"_TOP"); |
656 | } | |
657 | break; | |
658 | case '~': | |
3280af22 | 659 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 660 | if (!s) |
3280af22 | 661 | s = GvENAME(PL_defoutgv); |
79072805 LW |
662 | sv_setpv(sv,s); |
663 | break; | |
664 | #ifndef lint | |
665 | case '=': | |
3280af22 | 666 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
667 | break; |
668 | case '-': | |
3280af22 | 669 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
670 | break; |
671 | case '%': | |
3280af22 | 672 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
673 | break; |
674 | #endif | |
675 | case ':': | |
676 | break; | |
677 | case '/': | |
678 | break; | |
679 | case '[': | |
3280af22 | 680 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
681 | break; |
682 | case '|': | |
3280af22 | 683 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
684 | break; |
685 | case ',': | |
3280af22 | 686 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
687 | break; |
688 | case '\\': | |
3280af22 | 689 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
690 | break; |
691 | case '#': | |
3280af22 | 692 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
693 | break; |
694 | case '!': | |
a5f75d66 | 695 | #ifdef VMS |
946ec16e | 696 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 697 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 698 | #else |
88e89b8a | 699 | { |
700 | int saveerrno = errno; | |
946ec16e | 701 | sv_setnv(sv, (double)errno); |
88e89b8a | 702 | #ifdef OS2 |
703 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
704 | else | |
a5f75d66 | 705 | #endif |
2304df62 | 706 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 707 | errno = saveerrno; |
708 | } | |
709 | #endif | |
946ec16e | 710 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
711 | break; |
712 | case '<': | |
3280af22 | 713 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
714 | break; |
715 | case '>': | |
3280af22 | 716 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
717 | break; |
718 | case '(': | |
3280af22 NIS |
719 | sv_setiv(sv, (IV)PL_gid); |
720 | sv_setpvf(sv, "%Vd", (IV)PL_gid); | |
79072805 LW |
721 | goto add_groups; |
722 | case ')': | |
3280af22 NIS |
723 | sv_setiv(sv, (IV)PL_egid); |
724 | sv_setpvf(sv, "%Vd", (IV)PL_egid); | |
79072805 | 725 | add_groups: |
79072805 | 726 | #ifdef HAS_GETGROUPS |
79072805 | 727 | { |
a0d0e21e | 728 | Groups_t gary[NGROUPS]; |
79072805 | 729 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 730 | while (--i >= 0) |
fc36a67e | 731 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
732 | } |
733 | #endif | |
29355cf7 | 734 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
735 | break; |
736 | case '*': | |
737 | break; | |
738 | case '0': | |
739 | break; | |
a863c7d1 MB |
740 | #ifdef USE_THREADS |
741 | case '@': | |
38a03e6e | 742 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
743 | break; |
744 | #endif /* USE_THREADS */ | |
79072805 | 745 | } |
a0d0e21e | 746 | return 0; |
79072805 LW |
747 | } |
748 | ||
749 | int | |
8ac85365 | 750 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
751 | { |
752 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
753 | ||
754 | if (uf && uf->uf_val) | |
755 | (*uf->uf_val)(uf->uf_index, sv); | |
756 | return 0; | |
757 | } | |
758 | ||
759 | int | |
8ac85365 | 760 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
761 | { |
762 | register char *s; | |
88e89b8a | 763 | char *ptr; |
5aabfad6 | 764 | STRLEN len, klen; |
a0d0e21e | 765 | I32 i; |
1e422769 | 766 | |
a0d0e21e | 767 | s = SvPV(sv,len); |
5aabfad6 | 768 | ptr = MgPV(mg,klen); |
88e89b8a | 769 | my_setenv(ptr, s); |
1e422769 | 770 | |
a0d0e21e LW |
771 | #ifdef DYNAMIC_ENV_FETCH |
772 | /* We just undefd an environment var. Is a replacement */ | |
773 | /* waiting in the wings? */ | |
774 | if (!len) { | |
5aabfad6 | 775 | SV **valp; |
6b88bc9c | 776 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 777 | s = SvPV(*valp, len); |
a0d0e21e LW |
778 | } |
779 | #endif | |
1e422769 | 780 | |
39e571d4 | 781 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
782 | /* And you'll never guess what the dog had */ |
783 | /* in its mouth... */ | |
3280af22 | 784 | if (PL_tainting) { |
1e422769 | 785 | MgTAINTEDDIR_off(mg); |
786 | #ifdef VMS | |
5aabfad6 | 787 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 788 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
789 | struct stat sbuf; | |
790 | int i = 0, j = 0; | |
791 | ||
792 | do { /* DCL$PATH may be a search list */ | |
793 | while (1) { /* as may dev portion of any element */ | |
794 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
795 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
796 | cando_by_name(S_IWUSR,0,elt) ) { | |
797 | MgTAINTEDDIR_on(mg); | |
798 | return 0; | |
799 | } | |
800 | } | |
801 | if ((cp = strchr(elt, ':')) != Nullch) | |
802 | *cp = '\0'; | |
803 | if (my_trnlnm(elt, eltbuf, j++)) | |
804 | elt = eltbuf; | |
805 | else | |
806 | break; | |
807 | } | |
808 | j = 0; | |
809 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
810 | } | |
811 | #endif /* VMS */ | |
5aabfad6 | 812 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 813 | char *strend = s + len; |
463ee0b2 LW |
814 | |
815 | while (s < strend) { | |
96827780 | 816 | char tmpbuf[256]; |
1e422769 | 817 | struct stat st; |
96827780 | 818 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 819 | s, strend, ':', &i); |
463ee0b2 | 820 | s++; |
96827780 MB |
821 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
822 | || *tmpbuf != '/' | |
c6ed36e1 | 823 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 824 | MgTAINTEDDIR_on(mg); |
1e422769 | 825 | return 0; |
826 | } | |
463ee0b2 | 827 | } |
79072805 LW |
828 | } |
829 | } | |
39e571d4 | 830 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 831 | |
79072805 LW |
832 | return 0; |
833 | } | |
834 | ||
835 | int | |
8ac85365 | 836 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 837 | { |
3280af22 | 838 | my_setenv(MgPV(mg,PL_na),Nullch); |
85e6fe83 LW |
839 | return 0; |
840 | } | |
841 | ||
88e89b8a | 842 | int |
8ac85365 | 843 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 844 | { |
845 | #if defined(VMS) | |
846 | die("Can't make list assignment to %%ENV on this system"); | |
847 | #else | |
d58bf5aa | 848 | dTHR; |
3280af22 | 849 | if (PL_localizing) { |
fb73857a | 850 | HE* entry; |
851 | magic_clear_all_env(sv,mg); | |
852 | hv_iterinit((HV*)sv); | |
853 | while (entry = hv_iternext((HV*)sv)) { | |
854 | I32 keylen; | |
855 | my_setenv(hv_iterkey(entry, &keylen), | |
3280af22 | 856 | SvPV(hv_iterval((HV*)sv, entry), PL_na)); |
fb73857a | 857 | } |
858 | } | |
859 | #endif | |
860 | return 0; | |
861 | } | |
862 | ||
863 | int | |
8ac85365 | 864 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 865 | { |
3e3baf6d TB |
866 | #if defined(VMS) |
867 | die("Can't make list assignment to %%ENV on this system"); | |
868 | #else | |
869 | #ifdef WIN32 | |
870 | char *envv = GetEnvironmentStrings(); | |
871 | char *cur = envv; | |
872 | STRLEN len; | |
873 | while (*cur) { | |
874 | char *end = strchr(cur,'='); | |
875 | if (end && end != cur) { | |
876 | *end = '\0'; | |
877 | my_setenv(cur,Nullch); | |
878 | *end = '='; | |
879 | cur += strlen(end+1)+1; | |
880 | } | |
881 | else if ((len = strlen(cur))) | |
882 | cur += len+1; | |
883 | } | |
884 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
885 | #else |
886 | I32 i; | |
887 | ||
3280af22 | 888 | if (environ == PL_origenviron) |
66b1d557 HM |
889 | New(901, environ, 1, char*); |
890 | else | |
891 | for (i = 0; environ[i]; i++) | |
892 | Safefree(environ[i]); | |
893 | environ[0] = Nullch; | |
894 | ||
66b1d557 | 895 | #endif |
3e3baf6d TB |
896 | #endif |
897 | return 0; | |
66b1d557 HM |
898 | } |
899 | ||
900 | int | |
8ac85365 | 901 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 902 | { |
903 | I32 i; | |
904 | /* Are we fetching a signal entry? */ | |
3280af22 | 905 | i = whichsig(MgPV(mg,PL_na)); |
88e89b8a | 906 | if (i) { |
907 | if(psig_ptr[i]) | |
908 | sv_setsv(sv,psig_ptr[i]); | |
909 | else { | |
ff68c719 | 910 | Sighandler_t sigstate = rsignal_state(i); |
911 | ||
88e89b8a | 912 | /* cache state so we don't fetch it again */ |
ff68c719 | 913 | if(sigstate == SIG_IGN) |
88e89b8a | 914 | sv_setpv(sv,"IGNORE"); |
915 | else | |
3280af22 | 916 | sv_setsv(sv,&PL_sv_undef); |
88e89b8a | 917 | psig_ptr[i] = SvREFCNT_inc(sv); |
918 | SvTEMP_off(sv); | |
919 | } | |
920 | } | |
921 | return 0; | |
922 | } | |
923 | int | |
8ac85365 | 924 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 925 | { |
926 | I32 i; | |
927 | /* Are we clearing a signal entry? */ | |
3280af22 | 928 | i = whichsig(MgPV(mg,PL_na)); |
88e89b8a | 929 | if (i) { |
930 | if(psig_ptr[i]) { | |
931 | SvREFCNT_dec(psig_ptr[i]); | |
932 | psig_ptr[i]=0; | |
933 | } | |
934 | if(psig_name[i]) { | |
935 | SvREFCNT_dec(psig_name[i]); | |
936 | psig_name[i]=0; | |
937 | } | |
938 | } | |
939 | return 0; | |
940 | } | |
3d37d572 | 941 | |
85e6fe83 | 942 | int |
8ac85365 | 943 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 944 | { |
11343788 | 945 | dTHR; |
79072805 LW |
946 | register char *s; |
947 | I32 i; | |
748a9306 | 948 | SV** svp; |
a0d0e21e | 949 | |
3280af22 | 950 | s = MgPV(mg,PL_na); |
748a9306 LW |
951 | if (*s == '_') { |
952 | if (strEQ(s,"__DIE__")) | |
3280af22 | 953 | svp = &PL_diehook; |
748a9306 | 954 | else if (strEQ(s,"__WARN__")) |
3280af22 | 955 | svp = &PL_warnhook; |
748a9306 | 956 | else if (strEQ(s,"__PARSE__")) |
3280af22 | 957 | svp = &PL_parsehook; |
748a9306 LW |
958 | else |
959 | croak("No such hook: %s", s); | |
960 | i = 0; | |
4633a7c4 LW |
961 | if (*svp) { |
962 | SvREFCNT_dec(*svp); | |
963 | *svp = 0; | |
964 | } | |
748a9306 LW |
965 | } |
966 | else { | |
967 | i = whichsig(s); /* ...no, a brick */ | |
968 | if (!i) { | |
599cee73 PM |
969 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
970 | warner(WARN_SIGNAL, "No such signal: SIG%s", s); | |
748a9306 LW |
971 | return 0; |
972 | } | |
ff0cee69 | 973 | SvREFCNT_dec(psig_name[i]); |
974 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 975 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 976 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 977 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 978 | SvREADONLY_on(psig_name[i]); |
748a9306 | 979 | } |
a0d0e21e | 980 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 981 | if (i) |
3280af22 | 982 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
983 | else |
984 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
985 | return 0; |
986 | } | |
3280af22 | 987 | s = SvPV_force(sv,PL_na); |
748a9306 LW |
988 | if (strEQ(s,"IGNORE")) { |
989 | if (i) | |
ff68c719 | 990 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
991 | else |
992 | *svp = 0; | |
993 | } | |
994 | else if (strEQ(s,"DEFAULT") || !*s) { | |
995 | if (i) | |
ff68c719 | 996 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
997 | else |
998 | *svp = 0; | |
999 | } | |
79072805 | 1000 | else { |
5aabfad6 | 1001 | /* |
1002 | * We should warn if HINT_STRICT_REFS, but without | |
1003 | * access to a known hint bit in a known OP, we can't | |
1004 | * tell whether HINT_STRICT_REFS is in force or not. | |
1005 | */ | |
46fc3d4c | 1006 | if (!strchr(s,':') && !strchr(s,'\'')) |
1007 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 1008 | if (i) |
3280af22 | 1009 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1010 | else |
1011 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1012 | } |
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | int | |
8ac85365 | 1017 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 1018 | { |
3280af22 | 1019 | PL_sub_generation++; |
463ee0b2 LW |
1020 | return 0; |
1021 | } | |
1022 | ||
a0d0e21e LW |
1023 | #ifdef OVERLOAD |
1024 | ||
463ee0b2 | 1025 | int |
8ac85365 | 1026 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 1027 | { |
a0d0e21e | 1028 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1029 | PL_amagic_generation++; |
463ee0b2 | 1030 | |
a0d0e21e LW |
1031 | return 0; |
1032 | } | |
1033 | #endif /* OVERLOAD */ | |
463ee0b2 | 1034 | |
946ec16e | 1035 | int |
6ff81951 GS |
1036 | magic_getnkeys(SV *sv, MAGIC *mg) |
1037 | { | |
1038 | HV *hv = (HV*)LvTARG(sv); | |
1039 | HE *entry; | |
1040 | I32 i = 0; | |
1041 | ||
1042 | if (hv) { | |
1043 | (void) hv_iterinit(hv); | |
33c27489 | 1044 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1045 | i = HvKEYS(hv); |
1046 | else { | |
1047 | /*SUPPRESS 560*/ | |
1048 | while (entry = hv_iternext(hv)) { | |
1049 | i++; | |
1050 | } | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | sv_setiv(sv, (IV)i); | |
1055 | return 0; | |
1056 | } | |
1057 | ||
1058 | int | |
8ac85365 | 1059 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 1060 | { |
1061 | if (LvTARG(sv)) { | |
1062 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1063 | } |
1064 | return 0; | |
93965878 | 1065 | } |
946ec16e | 1066 | |
e336de0d | 1067 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1068 | STATIC int |
33c27489 | 1069 | magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1070 | { |
1071 | dSP; | |
463ee0b2 | 1072 | |
924508f0 GS |
1073 | PUSHMARK(SP); |
1074 | EXTEND(SP, n); | |
33c27489 | 1075 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1076 | if (n > 1) { |
1077 | if (mg->mg_ptr) { | |
565764a8 DL |
1078 | if (mg->mg_len >= 0) |
1079 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
1080 | else if (mg->mg_len == HEf_SVKEY) | |
93965878 NIS |
1081 | PUSHs((SV*)mg->mg_ptr); |
1082 | } | |
1083 | else if (mg->mg_type == 'p') { | |
565764a8 | 1084 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1085 | } |
1086 | } | |
1087 | if (n > 2) { | |
1088 | PUSHs(val); | |
88e89b8a | 1089 | } |
463ee0b2 LW |
1090 | PUTBACK; |
1091 | ||
93965878 | 1092 | return perl_call_method(meth, flags); |
946ec16e | 1093 | } |
1094 | ||
76e3520e | 1095 | STATIC int |
8ac85365 | 1096 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1097 | { |
1098 | dSP; | |
463ee0b2 | 1099 | |
a0d0e21e LW |
1100 | ENTER; |
1101 | SAVETMPS; | |
e788e7d3 | 1102 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1103 | |
33c27489 | 1104 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1105 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1106 | } |
463ee0b2 | 1107 | |
d3acc0f7 | 1108 | POPSTACK; |
a0d0e21e LW |
1109 | FREETMPS; |
1110 | LEAVE; | |
1111 | return 0; | |
1112 | } | |
463ee0b2 | 1113 | |
a0d0e21e | 1114 | int |
8ac85365 | 1115 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1116 | { |
1117 | magic_methpack(sv,mg,"FETCH"); | |
1118 | if (mg->mg_ptr) | |
1119 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1120 | return 0; |
1121 | } | |
1122 | ||
1123 | int | |
8ac85365 | 1124 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d GS |
1125 | { |
1126 | dSP; | |
a60c0954 | 1127 | ENTER; |
e788e7d3 | 1128 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1129 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1130 | POPSTACK; |
a60c0954 | 1131 | LEAVE; |
463ee0b2 LW |
1132 | return 0; |
1133 | } | |
1134 | ||
1135 | int | |
8ac85365 | 1136 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1137 | { |
a0d0e21e LW |
1138 | return magic_methpack(sv,mg,"DELETE"); |
1139 | } | |
463ee0b2 | 1140 | |
93965878 NIS |
1141 | |
1142 | U32 | |
1143 | magic_sizepack(SV *sv, MAGIC *mg) | |
1144 | { | |
e336de0d | 1145 | dSP; |
93965878 NIS |
1146 | U32 retval = 0; |
1147 | ||
1148 | ENTER; | |
1149 | SAVETMPS; | |
e788e7d3 | 1150 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1151 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1152 | sv = *PL_stack_sp--; |
a60c0954 | 1153 | retval = (U32) SvIV(sv)-1; |
93965878 | 1154 | } |
d3acc0f7 | 1155 | POPSTACK; |
93965878 NIS |
1156 | FREETMPS; |
1157 | LEAVE; | |
1158 | return retval; | |
1159 | } | |
1160 | ||
8ac85365 | 1161 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1162 | { |
1163 | dSP; | |
463ee0b2 | 1164 | |
e336de0d | 1165 | ENTER; |
e788e7d3 | 1166 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1167 | PUSHMARK(SP); |
33c27489 | 1168 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1169 | PUTBACK; |
a0d0e21e | 1170 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1171 | POPSTACK; |
a60c0954 | 1172 | LEAVE; |
463ee0b2 LW |
1173 | return 0; |
1174 | } | |
1175 | ||
1176 | int | |
8ac85365 | 1177 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1178 | { |
463ee0b2 | 1179 | dSP; |
a0d0e21e | 1180 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1181 | |
1182 | ENTER; | |
a0d0e21e | 1183 | SAVETMPS; |
e788e7d3 | 1184 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1185 | PUSHMARK(SP); |
1186 | EXTEND(SP, 2); | |
33c27489 | 1187 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1188 | if (SvOK(key)) |
1189 | PUSHs(key); | |
1190 | PUTBACK; | |
1191 | ||
a0d0e21e | 1192 | if (perl_call_method(meth, G_SCALAR)) |
3280af22 | 1193 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1194 | |
d3acc0f7 | 1195 | POPSTACK; |
a0d0e21e LW |
1196 | FREETMPS; |
1197 | LEAVE; | |
79072805 LW |
1198 | return 0; |
1199 | } | |
1200 | ||
1201 | int | |
8ac85365 | 1202 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1203 | { |
1204 | return magic_methpack(sv,mg,"EXISTS"); | |
1205 | } | |
1206 | ||
1207 | int | |
8ac85365 | 1208 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1209 | { |
11343788 | 1210 | dTHR; |
79072805 LW |
1211 | OP *o; |
1212 | I32 i; | |
1213 | GV* gv; | |
1214 | SV** svp; | |
1215 | ||
3280af22 | 1216 | gv = PL_DBline; |
79072805 | 1217 | i = SvTRUE(sv); |
188ea221 | 1218 | svp = av_fetch(GvAV(gv), |
3280af22 | 1219 | atoi(MgPV(mg,PL_na)), FALSE); |
8990e307 | 1220 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1221 | o->op_private = i; |
79072805 LW |
1222 | else |
1223 | warn("Can't break at that line\n"); | |
1224 | return 0; | |
1225 | } | |
1226 | ||
1227 | int | |
8ac85365 | 1228 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1229 | { |
0f15f207 | 1230 | dTHR; |
3280af22 | 1231 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1232 | return 0; |
1233 | } | |
1234 | ||
1235 | int | |
8ac85365 | 1236 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1237 | { |
0f15f207 | 1238 | dTHR; |
3280af22 | 1239 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1240 | return 0; |
1241 | } | |
1242 | ||
1243 | int | |
8ac85365 | 1244 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1245 | { |
1246 | SV* lsv = LvTARG(sv); | |
1247 | ||
1248 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1249 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1250 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1251 | dTHR; |
a0ed51b3 LW |
1252 | I32 i = mg->mg_len; |
1253 | if (IN_UTF8) | |
1254 | sv_pos_b2u(lsv, &i); | |
1255 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1256 | return 0; |
1257 | } | |
1258 | } | |
1259 | (void)SvOK_off(sv); | |
1260 | return 0; | |
1261 | } | |
1262 | ||
1263 | int | |
8ac85365 | 1264 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1265 | { |
1266 | SV* lsv = LvTARG(sv); | |
1267 | SSize_t pos; | |
1268 | STRLEN len; | |
a0ed51b3 | 1269 | STRLEN ulen; |
c485e607 | 1270 | dTHR; |
a0d0e21e LW |
1271 | |
1272 | mg = 0; | |
1273 | ||
1274 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1275 | mg = mg_find(lsv, 'g'); | |
1276 | if (!mg) { | |
1277 | if (!SvOK(sv)) | |
1278 | return 0; | |
1279 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1280 | mg = mg_find(lsv, 'g'); | |
1281 | } | |
1282 | else if (!SvOK(sv)) { | |
565764a8 | 1283 | mg->mg_len = -1; |
a0d0e21e LW |
1284 | return 0; |
1285 | } | |
1286 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1287 | ||
c485e607 | 1288 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 LW |
1289 | |
1290 | if (IN_UTF8) { | |
1291 | ulen = sv_len_utf8(lsv); | |
1292 | if (ulen) | |
1293 | len = ulen; | |
1294 | else | |
1295 | ulen = 0; | |
1296 | } | |
1297 | ||
a0d0e21e LW |
1298 | if (pos < 0) { |
1299 | pos += len; | |
1300 | if (pos < 0) | |
1301 | pos = 0; | |
1302 | } | |
1303 | else if (pos > len) | |
1304 | pos = len; | |
a0ed51b3 LW |
1305 | |
1306 | if (ulen) { | |
1307 | I32 p = pos; | |
1308 | sv_pos_u2b(lsv, &p, 0); | |
1309 | pos = p; | |
1310 | } | |
1311 | ||
565764a8 | 1312 | mg->mg_len = pos; |
71be2cbc | 1313 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1314 | |
79072805 LW |
1315 | return 0; |
1316 | } | |
1317 | ||
1318 | int | |
8ac85365 | 1319 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1320 | { |
8646b087 | 1321 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1322 | SvFAKE_off(sv); | |
946ec16e | 1323 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1324 | SvFAKE_on(sv); |
1325 | } | |
1326 | else | |
946ec16e | 1327 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1328 | return 0; |
1329 | } | |
1330 | ||
1331 | int | |
8ac85365 | 1332 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1333 | { |
1334 | register char *s; | |
1335 | GV* gv; | |
1336 | ||
1337 | if (!SvOK(sv)) | |
1338 | return 0; | |
3280af22 | 1339 | s = SvPV(sv, PL_na); |
79072805 LW |
1340 | if (*s == '*' && s[1]) |
1341 | s++; | |
85e6fe83 | 1342 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1343 | if (sv == (SV*)gv) |
1344 | return 0; | |
1345 | if (GvGP(sv)) | |
88e89b8a | 1346 | gp_free((GV*)sv); |
79072805 | 1347 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1348 | return 0; |
1349 | } | |
1350 | ||
1351 | int | |
6ff81951 GS |
1352 | magic_getsubstr(SV *sv, MAGIC *mg) |
1353 | { | |
1354 | STRLEN len; | |
1355 | SV *lsv = LvTARG(sv); | |
1356 | char *tmps = SvPV(lsv,len); | |
1357 | I32 offs = LvTARGOFF(sv); | |
1358 | I32 rem = LvTARGLEN(sv); | |
1359 | ||
1360 | if (offs > len) | |
1361 | offs = len; | |
1362 | if (rem + offs > len) | |
1363 | rem = len - offs; | |
1364 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1365 | return 0; | |
1366 | } | |
1367 | ||
1368 | int | |
8ac85365 | 1369 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1370 | { |
8990e307 LW |
1371 | STRLEN len; |
1372 | char *tmps = SvPV(sv,len); | |
1373 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1374 | return 0; |
1375 | } | |
1376 | ||
1377 | int | |
8ac85365 | 1378 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1379 | { |
a863c7d1 | 1380 | dTHR; |
565764a8 DL |
1381 | TAINT_IF((mg->mg_len & 1) || |
1382 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1383 | return 0; |
1384 | } | |
1385 | ||
1386 | int | |
8ac85365 | 1387 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1388 | { |
11343788 | 1389 | dTHR; |
3280af22 NIS |
1390 | if (PL_localizing) { |
1391 | if (PL_localizing == 1) | |
565764a8 | 1392 | mg->mg_len <<= 1; |
748a9306 | 1393 | else |
565764a8 | 1394 | mg->mg_len >>= 1; |
a0d0e21e | 1395 | } |
3280af22 | 1396 | else if (PL_tainted) |
565764a8 | 1397 | mg->mg_len |= 1; |
748a9306 | 1398 | else |
565764a8 | 1399 | mg->mg_len &= ~1; |
463ee0b2 LW |
1400 | return 0; |
1401 | } | |
1402 | ||
1403 | int | |
6ff81951 GS |
1404 | magic_getvec(SV *sv, MAGIC *mg) |
1405 | { | |
1406 | SV *lsv = LvTARG(sv); | |
1407 | unsigned char *s; | |
1408 | unsigned long retnum; | |
1409 | STRLEN lsvlen; | |
1410 | I32 len; | |
1411 | I32 offset; | |
1412 | I32 size; | |
1413 | ||
1414 | if (!lsv) { | |
1415 | SvOK_off(sv); | |
1416 | return 0; | |
1417 | } | |
1418 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1419 | offset = LvTARGOFF(sv); | |
1420 | size = LvTARGLEN(sv); | |
1421 | len = (offset + size + 7) / 8; | |
1422 | ||
1423 | /* Copied from pp_vec() */ | |
1424 | ||
1425 | if (len > lsvlen) { | |
1426 | if (size <= 8) | |
1427 | retnum = 0; | |
1428 | else { | |
1429 | offset >>= 3; | |
1430 | if (size == 16) { | |
1431 | if (offset >= lsvlen) | |
1432 | retnum = 0; | |
1433 | else | |
1434 | retnum = (unsigned long) s[offset] << 8; | |
1435 | } | |
1436 | else if (size == 32) { | |
1437 | if (offset >= lsvlen) | |
1438 | retnum = 0; | |
1439 | else if (offset + 1 >= lsvlen) | |
1440 | retnum = (unsigned long) s[offset] << 24; | |
1441 | else if (offset + 2 >= lsvlen) | |
1442 | retnum = ((unsigned long) s[offset] << 24) + | |
1443 | ((unsigned long) s[offset + 1] << 16); | |
1444 | else | |
1445 | retnum = ((unsigned long) s[offset] << 24) + | |
1446 | ((unsigned long) s[offset + 1] << 16) + | |
1447 | (s[offset + 2] << 8); | |
1448 | } | |
1449 | } | |
1450 | } | |
1451 | else if (size < 8) | |
1452 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1453 | else { | |
1454 | offset >>= 3; | |
1455 | if (size == 8) | |
1456 | retnum = s[offset]; | |
1457 | else if (size == 16) | |
1458 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1459 | else if (size == 32) | |
1460 | retnum = ((unsigned long) s[offset] << 24) + | |
1461 | ((unsigned long) s[offset + 1] << 16) + | |
1462 | (s[offset + 2] << 8) + s[offset+3]; | |
1463 | } | |
1464 | ||
1465 | sv_setuv(sv, (UV)retnum); | |
1466 | return 0; | |
1467 | } | |
1468 | ||
1469 | int | |
8ac85365 | 1470 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1471 | { |
1472 | do_vecset(sv); /* XXX slurp this routine */ | |
1473 | return 0; | |
1474 | } | |
1475 | ||
1476 | int | |
8ac85365 | 1477 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1478 | { |
71be2cbc | 1479 | SV *targ = Nullsv; |
5f05dabc | 1480 | if (LvTARGLEN(sv)) { |
68dc0745 | 1481 | if (mg->mg_obj) { |
74e13ce4 GS |
1482 | SV *ahv = LvTARG(sv); |
1483 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1484 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1485 | if (he) | |
1486 | targ = HeVAL(he); | |
1487 | } | |
1488 | else { | |
1489 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1490 | if (svp) | |
1491 | targ = *svp; | |
1492 | } | |
68dc0745 | 1493 | } |
1494 | else { | |
3c78fafa | 1495 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1496 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1497 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1498 | } | |
3280af22 | 1499 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1500 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1501 | /* somebody else defined it for us */ |
1502 | SvREFCNT_dec(LvTARG(sv)); | |
1503 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1504 | LvTARGLEN(sv) = 0; | |
1505 | SvREFCNT_dec(mg->mg_obj); | |
1506 | mg->mg_obj = Nullsv; | |
1507 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1508 | } | |
5f05dabc | 1509 | } |
71be2cbc | 1510 | else |
1511 | targ = LvTARG(sv); | |
3280af22 | 1512 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1513 | return 0; |
1514 | } | |
1515 | ||
1516 | int | |
8ac85365 | 1517 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1518 | { |
1519 | if (LvTARGLEN(sv)) | |
68dc0745 | 1520 | vivify_defelem(sv); |
1521 | if (LvTARG(sv)) { | |
5f05dabc | 1522 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1523 | SvSETMAGIC(LvTARG(sv)); |
1524 | } | |
5f05dabc | 1525 | return 0; |
1526 | } | |
1527 | ||
71be2cbc | 1528 | void |
8ac85365 | 1529 | vivify_defelem(SV *sv) |
71be2cbc | 1530 | { |
e858de61 | 1531 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1532 | MAGIC *mg; |
1533 | SV *value = Nullsv; | |
71be2cbc | 1534 | |
68dc0745 | 1535 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1536 | return; |
68dc0745 | 1537 | if (mg->mg_obj) { |
74e13ce4 GS |
1538 | SV *ahv = LvTARG(sv); |
1539 | if (SvTYPE(ahv) == SVt_PVHV) { | |
af7f9c15 | 1540 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1541 | if (he) |
1542 | value = HeVAL(he); | |
1543 | } | |
1544 | else { | |
af7f9c15 | 1545 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1546 | if (svp) |
1547 | value = *svp; | |
1548 | } | |
3280af22 NIS |
1549 | if (!value || value == &PL_sv_undef) |
1550 | croak(no_helem, SvPV(mg->mg_obj, PL_na)); | |
71be2cbc | 1551 | } |
68dc0745 | 1552 | else { |
1553 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1554 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1555 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1556 | else { | |
1557 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1558 | if (!svp || (value = *svp) == &PL_sv_undef) |
68dc0745 | 1559 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1560 | } | |
1561 | } | |
3e3baf6d | 1562 | (void)SvREFCNT_inc(value); |
68dc0745 | 1563 | SvREFCNT_dec(LvTARG(sv)); |
1564 | LvTARG(sv) = value; | |
71be2cbc | 1565 | LvTARGLEN(sv) = 0; |
68dc0745 | 1566 | SvREFCNT_dec(mg->mg_obj); |
1567 | mg->mg_obj = Nullsv; | |
1568 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1569 | } |
1570 | ||
1571 | int | |
8ac85365 | 1572 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1573 | { |
565764a8 | 1574 | mg->mg_len = -1; |
c6496cc7 | 1575 | SvSCREAM_off(sv); |
93a17b20 LW |
1576 | return 0; |
1577 | } | |
1578 | ||
1579 | int | |
8ac85365 | 1580 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1581 | { |
463ee0b2 | 1582 | sv_unmagic(sv, 'B'); |
79072805 LW |
1583 | SvVALID_off(sv); |
1584 | return 0; | |
1585 | } | |
1586 | ||
1587 | int | |
8ac85365 | 1588 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1589 | { |
1590 | sv_unmagic(sv, 'f'); | |
1591 | SvCOMPILED_off(sv); | |
1592 | return 0; | |
1593 | } | |
1594 | ||
1595 | int | |
8ac85365 | 1596 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1597 | { |
1598 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1599 | ||
1600 | if (uf && uf->uf_set) | |
1601 | (*uf->uf_set)(uf->uf_index, sv); | |
1602 | return 0; | |
1603 | } | |
1604 | ||
c277df42 IZ |
1605 | int |
1606 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1607 | { | |
1608 | regexp *re = (regexp *)mg->mg_obj; | |
1609 | ReREFCNT_dec(re); | |
1610 | return 0; | |
1611 | } | |
1612 | ||
7a4c00b4 | 1613 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1614 | int |
8ac85365 | 1615 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1616 | { |
1617 | /* | |
838b5b74 | 1618 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1619 | * and vanished with a faint plop. |
1620 | */ | |
7a4c00b4 | 1621 | if (mg->mg_ptr) { |
1622 | Safefree(mg->mg_ptr); | |
1623 | mg->mg_ptr = NULL; | |
565764a8 | 1624 | mg->mg_len = -1; |
7a4c00b4 | 1625 | } |
bbce6d69 | 1626 | return 0; |
1627 | } | |
7a4c00b4 | 1628 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1629 | |
1630 | int | |
8ac85365 | 1631 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1632 | { |
11343788 | 1633 | dTHR; |
79072805 LW |
1634 | register char *s; |
1635 | I32 i; | |
8990e307 | 1636 | STRLEN len; |
79072805 | 1637 | switch (*mg->mg_ptr) { |
748a9306 | 1638 | case '\001': /* ^A */ |
3280af22 | 1639 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1640 | break; |
599cee73 PM |
1641 | case '\002': /* ^B */ |
1642 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1643 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) | |
e24b16f9 | 1644 | PL_compiling.cop_warnings = WARN_ALL; |
599cee73 | 1645 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 | 1646 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 | 1647 | else { |
e24b16f9 GS |
1648 | if (PL_compiling.cop_warnings != WARN_NONE && |
1649 | PL_compiling.cop_warnings != WARN_ALL) | |
1650 | sv_setsv(PL_compiling.cop_warnings, sv); | |
599cee73 | 1651 | else |
e24b16f9 | 1652 | PL_compiling.cop_warnings = newSVsv(sv) ; |
599cee73 PM |
1653 | } |
1654 | } | |
1655 | break; | |
79072805 | 1656 | case '\004': /* ^D */ |
3280af22 | 1657 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1658 | DEBUG_x(dump_all()); |
1659 | break; | |
28f23441 | 1660 | case '\005': /* ^E */ |
1661 | #ifdef VMS | |
1662 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1663 | #else | |
22fae026 TM |
1664 | #ifdef WIN32 |
1665 | SetLastError( SvIV(sv) ); | |
1666 | #else | |
f86702cc | 1667 | /* will anyone ever use this? */ |
1668 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1669 | #endif |
22fae026 | 1670 | #endif |
28f23441 | 1671 | break; |
79072805 | 1672 | case '\006': /* ^F */ |
3280af22 | 1673 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1674 | break; |
a0d0e21e | 1675 | case '\010': /* ^H */ |
3280af22 | 1676 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1677 | break; |
9d116dd7 | 1678 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1679 | if (PL_inplace) |
1680 | Safefree(PL_inplace); | |
79072805 | 1681 | if (SvOK(sv)) |
3280af22 | 1682 | PL_inplace = savepv(SvPV(sv,PL_na)); |
79072805 | 1683 | else |
3280af22 | 1684 | PL_inplace = Nullch; |
79072805 | 1685 | break; |
28f23441 | 1686 | case '\017': /* ^O */ |
3280af22 NIS |
1687 | if (PL_osname) |
1688 | Safefree(PL_osname); | |
28f23441 | 1689 | if (SvOK(sv)) |
3280af22 | 1690 | PL_osname = savepv(SvPV(sv,PL_na)); |
28f23441 | 1691 | else |
3280af22 | 1692 | PL_osname = Nullch; |
28f23441 | 1693 | break; |
79072805 | 1694 | case '\020': /* ^P */ |
3280af22 | 1695 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1696 | break; |
1697 | case '\024': /* ^T */ | |
88e89b8a | 1698 | #ifdef BIG_TIME |
6b88bc9c | 1699 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1700 | #else |
3280af22 | 1701 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1702 | #endif |
79072805 LW |
1703 | break; |
1704 | case '\027': /* ^W */ | |
599cee73 PM |
1705 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1706 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1707 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; | |
1708 | } | |
79072805 LW |
1709 | break; |
1710 | case '.': | |
3280af22 NIS |
1711 | if (PL_localizing) { |
1712 | if (PL_localizing == 1) | |
1713 | save_sptr((SV**)&PL_last_in_gv); | |
748a9306 | 1714 | } |
3280af22 NIS |
1715 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1716 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1717 | break; |
1718 | case '^': | |
3280af22 NIS |
1719 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
1720 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na)); | |
1721 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1722 | break; |
1723 | case '~': | |
3280af22 NIS |
1724 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
1725 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na)); | |
1726 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1727 | break; |
1728 | case '=': | |
3280af22 | 1729 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1730 | break; |
1731 | case '-': | |
3280af22 NIS |
1732 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1733 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1734 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1735 | break; |
1736 | case '%': | |
3280af22 | 1737 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1738 | break; |
1739 | case '|': | |
4b65379b | 1740 | { |
3280af22 | 1741 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1742 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1743 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1744 | else { | |
1745 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1746 | PerlIO *ofp = IoOFP(io); | |
1747 | if (ofp) | |
1748 | (void)PerlIO_flush(ofp); | |
1749 | IoFLAGS(io) |= IOf_FLUSH; | |
1750 | } | |
1751 | } | |
79072805 LW |
1752 | } |
1753 | break; | |
1754 | case '*': | |
463ee0b2 | 1755 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1756 | PL_multiline = (i != 0); |
79072805 LW |
1757 | break; |
1758 | case '/': | |
3280af22 NIS |
1759 | SvREFCNT_dec(PL_nrs); |
1760 | PL_nrs = newSVsv(sv); | |
1761 | SvREFCNT_dec(PL_rs); | |
1762 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1763 | break; |
1764 | case '\\': | |
3280af22 NIS |
1765 | if (PL_ors) |
1766 | Safefree(PL_ors); | |
e3c19b7b | 1767 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 | 1768 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b | 1769 | else { |
3280af22 NIS |
1770 | PL_ors = Nullch; |
1771 | PL_orslen = 0; | |
e3c19b7b | 1772 | } |
79072805 LW |
1773 | break; |
1774 | case ',': | |
3280af22 NIS |
1775 | if (PL_ofs) |
1776 | Safefree(PL_ofs); | |
1777 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1778 | break; |
1779 | case '#': | |
3280af22 NIS |
1780 | if (PL_ofmt) |
1781 | Safefree(PL_ofmt); | |
1782 | PL_ofmt = savepv(SvPV(sv,PL_na)); | |
79072805 LW |
1783 | break; |
1784 | case '[': | |
3280af22 | 1785 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1786 | break; |
1787 | case '?': | |
ff0cee69 | 1788 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1789 | if (PL_localizing == 2) { |
1790 | PL_statusvalue = LvTARGOFF(sv); | |
1791 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1792 | } |
1793 | else | |
1794 | #endif | |
1795 | #ifdef VMSISH_STATUS | |
1796 | if (VMSISH_STATUS) | |
1797 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1798 | else | |
1799 | #endif | |
1800 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1801 | break; |
1802 | case '!': | |
78987ded | 1803 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1804 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1805 | break; |
1806 | case '<': | |
3280af22 NIS |
1807 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1808 | if (PL_delaymagic) { | |
1809 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1810 | break; /* don't do magic till later */ |
1811 | } | |
1812 | #ifdef HAS_SETRUID | |
b28d0864 | 1813 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1814 | #else |
1815 | #ifdef HAS_SETREUID | |
3280af22 | 1816 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1817 | #else |
85e6fe83 | 1818 | #ifdef HAS_SETRESUID |
b28d0864 | 1819 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1820 | #else |
b28d0864 NIS |
1821 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1822 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1823 | else { |
b28d0864 | 1824 | PL_uid = (I32)PerlProc_getuid(); |
463ee0b2 | 1825 | croak("setruid() not implemented"); |
a0d0e21e | 1826 | } |
79072805 LW |
1827 | #endif |
1828 | #endif | |
85e6fe83 | 1829 | #endif |
3280af22 NIS |
1830 | PL_uid = (I32)PerlProc_getuid(); |
1831 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1832 | break; |
1833 | case '>': | |
3280af22 NIS |
1834 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1835 | if (PL_delaymagic) { | |
1836 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1837 | break; /* don't do magic till later */ |
1838 | } | |
1839 | #ifdef HAS_SETEUID | |
3280af22 | 1840 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1841 | #else |
1842 | #ifdef HAS_SETREUID | |
b28d0864 | 1843 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1844 | #else |
1845 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1846 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1847 | #else |
b28d0864 NIS |
1848 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1849 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1850 | else { |
b28d0864 | 1851 | PL_euid = (I32)PerlProc_geteuid(); |
463ee0b2 | 1852 | croak("seteuid() not implemented"); |
a0d0e21e | 1853 | } |
79072805 LW |
1854 | #endif |
1855 | #endif | |
85e6fe83 | 1856 | #endif |
3280af22 NIS |
1857 | PL_euid = (I32)PerlProc_geteuid(); |
1858 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1859 | break; |
1860 | case '(': | |
3280af22 NIS |
1861 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1862 | if (PL_delaymagic) { | |
1863 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1864 | break; /* don't do magic till later */ |
1865 | } | |
1866 | #ifdef HAS_SETRGID | |
b28d0864 | 1867 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1868 | #else |
1869 | #ifdef HAS_SETREGID | |
3280af22 | 1870 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1871 | #else |
1872 | #ifdef HAS_SETRESGID | |
b28d0864 | 1873 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1874 | #else |
b28d0864 NIS |
1875 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1876 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1877 | else { |
b28d0864 | 1878 | PL_gid = (I32)PerlProc_getgid(); |
463ee0b2 | 1879 | croak("setrgid() not implemented"); |
748a9306 | 1880 | } |
79072805 LW |
1881 | #endif |
1882 | #endif | |
85e6fe83 | 1883 | #endif |
3280af22 NIS |
1884 | PL_gid = (I32)PerlProc_getgid(); |
1885 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1886 | break; |
1887 | case ')': | |
5cd24f17 | 1888 | #ifdef HAS_SETGROUPS |
1889 | { | |
3280af22 | 1890 | char *p = SvPV(sv, PL_na); |
5cd24f17 | 1891 | Groups_t gary[NGROUPS]; |
1892 | ||
1893 | SET_NUMERIC_STANDARD(); | |
1894 | while (isSPACE(*p)) | |
1895 | ++p; | |
3280af22 | 1896 | PL_egid = I_V(atof(p)); |
5cd24f17 | 1897 | for (i = 0; i < NGROUPS; ++i) { |
1898 | while (*p && !isSPACE(*p)) | |
1899 | ++p; | |
1900 | while (isSPACE(*p)) | |
1901 | ++p; | |
1902 | if (!*p) | |
1903 | break; | |
1904 | gary[i] = I_V(atof(p)); | |
1905 | } | |
8cc95fdb | 1906 | if (i) |
1907 | (void)setgroups(i, gary); | |
5cd24f17 | 1908 | } |
1909 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1910 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1911 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1912 | if (PL_delaymagic) { |
1913 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1914 | break; /* don't do magic till later */ |
1915 | } | |
1916 | #ifdef HAS_SETEGID | |
3280af22 | 1917 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1918 | #else |
1919 | #ifdef HAS_SETREGID | |
b28d0864 | 1920 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1921 | #else |
1922 | #ifdef HAS_SETRESGID | |
b28d0864 | 1923 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1924 | #else |
b28d0864 NIS |
1925 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1926 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1927 | else { |
b28d0864 | 1928 | PL_egid = (I32)PerlProc_getegid(); |
463ee0b2 | 1929 | croak("setegid() not implemented"); |
748a9306 | 1930 | } |
79072805 LW |
1931 | #endif |
1932 | #endif | |
85e6fe83 | 1933 | #endif |
3280af22 NIS |
1934 | PL_egid = (I32)PerlProc_getegid(); |
1935 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1936 | break; |
1937 | case ':': | |
3280af22 | 1938 | PL_chopset = SvPV_force(sv,PL_na); |
79072805 LW |
1939 | break; |
1940 | case '0': | |
3280af22 NIS |
1941 | if (!PL_origalen) { |
1942 | s = PL_origargv[0]; | |
79072805 LW |
1943 | s += strlen(s); |
1944 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1945 | for (i = 1; i < PL_origargc; i++) { |
1946 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1947 | #ifdef OS2 |
6b88bc9c | 1948 | || PL_origargv[i] == s + 2 |
fb73857a | 1949 | #endif |
1950 | ) | |
79072805 | 1951 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1952 | else |
1953 | break; | |
79072805 | 1954 | } |
bbce6d69 | 1955 | /* can grab env area too? */ |
3280af22 | 1956 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 1957 | #ifdef OS2 |
6b88bc9c | 1958 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 1959 | #endif |
1960 | )) { | |
66b1d557 | 1961 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 1962 | /* force copy of environment */ |
3280af22 NIS |
1963 | for (i = 0; PL_origenviron[i]; i++) |
1964 | if (PL_origenviron[i] == s + 1) | |
79072805 | 1965 | s += strlen(++s); |
fb73857a | 1966 | else |
1967 | break; | |
79072805 | 1968 | } |
3280af22 | 1969 | PL_origalen = s - PL_origargv[0]; |
79072805 | 1970 | } |
a0d0e21e | 1971 | s = SvPV_force(sv,len); |
8990e307 | 1972 | i = len; |
3280af22 NIS |
1973 | if (i >= PL_origalen) { |
1974 | i = PL_origalen; | |
fb73857a | 1975 | /* don't allow system to limit $0 seen by script */ |
1976 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
1977 | Copy(s, PL_origargv[0], i, char); |
1978 | s = PL_origargv[0]+i; | |
fb73857a | 1979 | *s = '\0'; |
79072805 LW |
1980 | } |
1981 | else { | |
3280af22 NIS |
1982 | Copy(s, PL_origargv[0], i, char); |
1983 | s = PL_origargv[0]+i; | |
79072805 | 1984 | *s++ = '\0'; |
3280af22 | 1985 | while (++i < PL_origalen) |
8990e307 | 1986 | *s++ = ' '; |
3280af22 NIS |
1987 | s = PL_origargv[0]+i; |
1988 | for (i = 1; i < PL_origargc; i++) | |
1989 | PL_origargv[i] = Nullch; | |
79072805 LW |
1990 | } |
1991 | break; | |
a863c7d1 MB |
1992 | #ifdef USE_THREADS |
1993 | case '@': | |
38a03e6e | 1994 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1995 | break; |
1996 | #endif /* USE_THREADS */ | |
79072805 LW |
1997 | } |
1998 | return 0; | |
1999 | } | |
2000 | ||
f93b4edd MB |
2001 | #ifdef USE_THREADS |
2002 | int | |
8ac85365 | 2003 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
2004 | { |
2005 | dTHR; | |
8b73bbec | 2006 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 | 2007 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd MB |
2008 | if (MgOWNER(mg)) |
2009 | croak("panic: magic_mutexfree"); | |
2010 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
2011 | COND_DESTROY(MgCONDP(mg)); | |
2012 | return 0; | |
2013 | } | |
2014 | #endif /* USE_THREADS */ | |
2015 | ||
79072805 | 2016 | I32 |
8ac85365 | 2017 | whichsig(char *sig) |
79072805 LW |
2018 | { |
2019 | register char **sigv; | |
2020 | ||
2021 | for (sigv = sig_name+1; *sigv; sigv++) | |
2022 | if (strEQ(sig,*sigv)) | |
8e07c86e | 2023 | return sig_num[sigv - sig_name]; |
79072805 LW |
2024 | #ifdef SIGCLD |
2025 | if (strEQ(sig,"CHLD")) | |
2026 | return SIGCLD; | |
2027 | #endif | |
2028 | #ifdef SIGCHLD | |
2029 | if (strEQ(sig,"CLD")) | |
2030 | return SIGCHLD; | |
2031 | #endif | |
2032 | return 0; | |
2033 | } | |
2034 | ||
84902520 TB |
2035 | static SV* sig_sv; |
2036 | ||
76e3520e | 2037 | STATIC void |
8ac85365 | 2038 | unwind_handler_stack(void *p) |
84902520 | 2039 | { |
ff26ac79 | 2040 | dTHR; |
84902520 TB |
2041 | U32 flags = *(U32*)p; |
2042 | ||
2043 | if (flags & 1) | |
3280af22 | 2044 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 TB |
2045 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2046 | if (flags & 64) | |
2047 | SvREFCNT_dec(sig_sv); | |
2048 | } | |
2049 | ||
ecfc5424 | 2050 | Signal_t |
8ac85365 | 2051 | sighandler(int sig) |
79072805 LW |
2052 | { |
2053 | dSP; | |
00d579c5 | 2054 | GV *gv = Nullgv; |
a0d0e21e | 2055 | HV *st; |
3280af22 | 2056 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2057 | CV *cv = Nullcv; |
533c011a | 2058 | OP *myop = PL_op; |
84902520 | 2059 | U32 flags = 0; |
3280af22 NIS |
2060 | I32 o_save_i = PL_savestack_ix, type; |
2061 | XPV *tXpv = PL_Xpv; | |
84902520 | 2062 | |
3280af22 | 2063 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2064 | flags |= 1; |
3280af22 | 2065 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2066 | flags |= 4; |
3280af22 | 2067 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2068 | flags |= 8; |
3280af22 | 2069 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2070 | flags |= 16; |
2071 | ||
ff0cee69 | 2072 | if (!psig_ptr[sig]) |
2073 | die("Signal SIG%s received, but no signal handler set.\n", | |
2074 | sig_name[sig]); | |
2075 | ||
84902520 TB |
2076 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2077 | infinity, so we fix 4 (in fact 5): */ | |
2078 | if (flags & 1) { | |
3280af22 NIS |
2079 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2080 | o_save_i = PL_savestack_ix; | |
565764a8 | 2081 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2082 | } |
2083 | if (flags & 4) | |
3280af22 | 2084 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2085 | if (flags & 8) { |
3280af22 NIS |
2086 | PL_retstack_ix++; |
2087 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2088 | } |
2089 | if (flags & 16) | |
3280af22 | 2090 | PL_scopestack_ix += 1; |
84902520 TB |
2091 | /* sv_2cv is too complicated, try a simpler variant first: */ |
2092 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
2093 | || SvTYPE(cv) != SVt_PVCV) | |
2094 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
2095 | ||
a0d0e21e | 2096 | if (!cv || !CvROOT(cv)) { |
599cee73 PM |
2097 | if (ckWARN(WARN_SIGNAL)) |
2098 | warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
2099 | sig_name[sig], (gv ? GvENAME(gv) |
2100 | : ((cv && CvGV(cv)) | |
2101 | ? GvENAME(CvGV(cv)) | |
2102 | : "__ANON__"))); | |
2103 | goto cleanup; | |
79072805 LW |
2104 | } |
2105 | ||
84902520 | 2106 | if(psig_name[sig]) { |
88e89b8a | 2107 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
2108 | flags |= 64; |
2109 | sig_sv = sv; | |
2110 | } else { | |
ff0cee69 | 2111 | sv = sv_newmortal(); |
2112 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 2113 | } |
e336de0d | 2114 | |
e788e7d3 | 2115 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2116 | PUSHMARK(SP); |
79072805 | 2117 | PUSHs(sv); |
79072805 | 2118 | PUTBACK; |
a0d0e21e LW |
2119 | |
2120 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 | 2121 | |
d3acc0f7 | 2122 | POPSTACK; |
00d579c5 | 2123 | cleanup: |
84902520 | 2124 | if (flags & 1) |
3280af22 | 2125 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2126 | if (flags & 4) |
3280af22 | 2127 | PL_markstack_ptr--; |
84902520 | 2128 | if (flags & 8) |
3280af22 | 2129 | PL_retstack_ix--; |
84902520 | 2130 | if (flags & 16) |
3280af22 | 2131 | PL_scopestack_ix -= 1; |
84902520 TB |
2132 | if (flags & 64) |
2133 | SvREFCNT_dec(sv); | |
533c011a | 2134 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2135 | |
3280af22 NIS |
2136 | PL_Sv = tSv; /* Restore global temporaries. */ |
2137 | PL_Xpv = tXpv; | |
79072805 LW |
2138 | return; |
2139 | } | |
4e35701f NIS |
2140 | |
2141 |