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)); | |
b86a2fa7 | 34 | static int magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 f, int n, SV *val); |
455ece5e AD |
35 | #endif |
36 | ||
c07a80fd | 37 | /* |
38 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
39 | */ | |
40 | ||
41 | struct magic_state { | |
42 | SV* mgs_sv; | |
43 | U32 mgs_flags; | |
455ece5e | 44 | I32 mgs_ss_ix; |
c07a80fd | 45 | }; |
455ece5e | 46 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
47 | |
48 | STATIC void | |
455ece5e | 49 | save_magic(I32 mgs_ix, SV *sv) |
c07a80fd | 50 | { |
46124e9e | 51 | dTHR; |
455ece5e | 52 | MGS* mgs; |
c07a80fd | 53 | assert(SvMAGICAL(sv)); |
54 | ||
455ece5e AD |
55 | SAVEDESTRUCTOR(restore_magic, (void*)mgs_ix); |
56 | ||
57 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 58 | mgs->mgs_sv = sv; |
59 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 60 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 61 | |
62 | SvMAGICAL_off(sv); | |
63 | SvREADONLY_off(sv); | |
64 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 65 | } |
66 | ||
76e3520e | 67 | STATIC void |
8ac85365 | 68 | restore_magic(void *p) |
c07a80fd | 69 | { |
46124e9e | 70 | dTHR; |
455ece5e | 71 | MGS* mgs = SSPTR((I32)p, MGS*); |
c07a80fd | 72 | SV* sv = mgs->mgs_sv; |
73 | ||
455ece5e AD |
74 | if (!sv) |
75 | return; | |
76 | ||
c07a80fd | 77 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
78 | { | |
79 | if (mgs->mgs_flags) | |
80 | SvFLAGS(sv) |= mgs->mgs_flags; | |
81 | else | |
82 | mg_magical(sv); | |
83 | if (SvGMAGICAL(sv)) | |
84 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
85 | } | |
455ece5e AD |
86 | |
87 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
88 | ||
89 | /* If we're still on top of the stack, pop us off. (That condition | |
90 | * will be satisfied if restore_magic was called explicitly, but *not* | |
91 | * if it's being called via leave_scope.) | |
92 | * The reason for doing this is that otherwise, things like sv_2cv() | |
93 | * may leave alloc gunk on the savestack, and some code | |
94 | * (e.g. sighandler) doesn't expect that... | |
95 | */ | |
96 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
97 | { | |
3c8a4456 GS |
98 | I32 popval = SSPOPINT; |
99 | assert(popval == SAVEt_DESTRUCTOR); | |
455ece5e | 100 | PL_savestack_ix -= 2; |
3c8a4456 GS |
101 | popval = SSPOPINT; |
102 | assert(popval == SAVEt_ALLOC); | |
103 | popval = SSPOPINT; | |
104 | PL_savestack_ix -= popval; | |
455ece5e AD |
105 | } |
106 | ||
c07a80fd | 107 | } |
108 | ||
8990e307 | 109 | void |
8ac85365 | 110 | mg_magical(SV *sv) |
8990e307 LW |
111 | { |
112 | MAGIC* mg; | |
113 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
114 | MGVTBL* vtbl = mg->mg_virtual; | |
115 | if (vtbl) { | |
76e3520e | 116 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
117 | SvGMAGICAL_on(sv); |
118 | if (vtbl->svt_set) | |
119 | SvSMAGICAL_on(sv); | |
76e3520e | 120 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 LW |
121 | SvRMAGICAL_on(sv); |
122 | } | |
123 | } | |
124 | } | |
125 | ||
79072805 | 126 | int |
8ac85365 | 127 | mg_get(SV *sv) |
79072805 | 128 | { |
46124e9e | 129 | dTHR; |
455ece5e | 130 | I32 mgs_ix; |
79072805 | 131 | MAGIC* mg; |
c6496cc7 | 132 | MAGIC** mgp; |
760ac839 | 133 | int mgp_valid = 0; |
463ee0b2 | 134 | |
455ece5e AD |
135 | mgs_ix = SSNEW(sizeof(MGS)); |
136 | save_magic(mgs_ix, sv); | |
463ee0b2 | 137 | |
c6496cc7 | 138 | mgp = &SvMAGIC(sv); |
139 | while ((mg = *mgp) != 0) { | |
79072805 | 140 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e GS |
141 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
142 | (VTBL->svt_get)(sv, mg); | |
c6496cc7 | 143 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
144 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
145 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 146 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 147 | } |
c6496cc7 | 148 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 149 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 150 | mgp = &mg->mg_moremagic; |
760ac839 LW |
151 | mgp_valid = 1; |
152 | } | |
153 | else | |
154 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 155 | } |
463ee0b2 | 156 | |
455ece5e | 157 | restore_magic((void*)mgs_ix); |
79072805 LW |
158 | return 0; |
159 | } | |
160 | ||
161 | int | |
8ac85365 | 162 | mg_set(SV *sv) |
79072805 | 163 | { |
46124e9e | 164 | dTHR; |
455ece5e | 165 | I32 mgs_ix; |
79072805 | 166 | MAGIC* mg; |
463ee0b2 LW |
167 | MAGIC* nextmg; |
168 | ||
455ece5e AD |
169 | mgs_ix = SSNEW(sizeof(MGS)); |
170 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
171 | |
172 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 173 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 174 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
175 | if (mg->mg_flags & MGf_GSKIP) { |
176 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 177 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 178 | } |
76e3520e GS |
179 | if (vtbl && (vtbl->svt_set != NULL)) |
180 | (VTBL->svt_set)(sv, mg); | |
79072805 | 181 | } |
463ee0b2 | 182 | |
455ece5e | 183 | restore_magic((void*)mgs_ix); |
79072805 LW |
184 | return 0; |
185 | } | |
186 | ||
187 | U32 | |
565764a8 | 188 | mg_length(SV *sv) |
79072805 LW |
189 | { |
190 | MAGIC* mg; | |
748a9306 | 191 | char *junk; |
463ee0b2 | 192 | STRLEN len; |
463ee0b2 | 193 | |
79072805 LW |
194 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
195 | MGVTBL* vtbl = mg->mg_virtual; | |
76e3520e | 196 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e | 197 | I32 mgs_ix; |
48e43a1c | 198 | |
455ece5e AD |
199 | mgs_ix = SSNEW(sizeof(MGS)); |
200 | save_magic(mgs_ix, sv); | |
a0d0e21e | 201 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e | 202 | len = (VTBL->svt_len)(sv, mg); |
455ece5e | 203 | restore_magic((void*)mgs_ix); |
85e6fe83 LW |
204 | return len; |
205 | } | |
206 | } | |
207 | ||
748a9306 | 208 | junk = SvPV(sv, len); |
463ee0b2 | 209 | return len; |
79072805 LW |
210 | } |
211 | ||
93965878 NIS |
212 | I32 |
213 | mg_size(SV *sv) | |
214 | { | |
215 | MAGIC* mg; | |
216 | I32 len; | |
217 | ||
218 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
219 | MGVTBL* vtbl = mg->mg_virtual; | |
565764a8 | 220 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e AD |
221 | I32 mgs_ix; |
222 | ||
223 | mgs_ix = SSNEW(sizeof(MGS)); | |
224 | save_magic(mgs_ix, sv); | |
93965878 | 225 | /* omit MGf_GSKIP -- not changed here */ |
565764a8 | 226 | len = (VTBL->svt_len)(sv, mg); |
455ece5e | 227 | restore_magic((void*)mgs_ix); |
93965878 NIS |
228 | return len; |
229 | } | |
230 | } | |
231 | ||
232 | switch(SvTYPE(sv)) { | |
233 | case SVt_PVAV: | |
234 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
235 | return len; | |
236 | case SVt_PVHV: | |
237 | /* FIXME */ | |
238 | default: | |
239 | croak("Size magic not implemented"); | |
240 | break; | |
241 | } | |
242 | return 0; | |
243 | } | |
244 | ||
79072805 | 245 | int |
8ac85365 | 246 | mg_clear(SV *sv) |
79072805 | 247 | { |
455ece5e | 248 | I32 mgs_ix; |
79072805 | 249 | MAGIC* mg; |
463ee0b2 | 250 | |
455ece5e AD |
251 | mgs_ix = SSNEW(sizeof(MGS)); |
252 | save_magic(mgs_ix, sv); | |
463ee0b2 | 253 | |
79072805 LW |
254 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
255 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
256 | /* omit GSKIP -- never set here */ |
257 | ||
76e3520e GS |
258 | if (vtbl && (vtbl->svt_clear != NULL)) |
259 | (VTBL->svt_clear)(sv, mg); | |
79072805 | 260 | } |
463ee0b2 | 261 | |
455ece5e | 262 | restore_magic((void*)mgs_ix); |
79072805 LW |
263 | return 0; |
264 | } | |
265 | ||
93a17b20 | 266 | MAGIC* |
8ac85365 | 267 | mg_find(SV *sv, int type) |
93a17b20 LW |
268 | { |
269 | MAGIC* mg; | |
93a17b20 LW |
270 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
271 | if (mg->mg_type == type) | |
272 | return mg; | |
273 | } | |
274 | return 0; | |
275 | } | |
276 | ||
79072805 | 277 | int |
8ac85365 | 278 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 | 279 | { |
463ee0b2 | 280 | int count = 0; |
79072805 | 281 | MAGIC* mg; |
463ee0b2 LW |
282 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
283 | if (isUPPER(mg->mg_type)) { | |
33c27489 GS |
284 | sv_magic(nsv, |
285 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj, | |
286 | toLOWER(mg->mg_type), key, klen); | |
463ee0b2 | 287 | count++; |
79072805 | 288 | } |
79072805 | 289 | } |
463ee0b2 | 290 | return count; |
79072805 LW |
291 | } |
292 | ||
293 | int | |
8ac85365 | 294 | mg_free(SV *sv) |
79072805 LW |
295 | { |
296 | MAGIC* mg; | |
297 | MAGIC* moremagic; | |
298 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
299 | MGVTBL* vtbl = mg->mg_virtual; | |
300 | moremagic = mg->mg_moremagic; | |
76e3520e GS |
301 | if (vtbl && (vtbl->svt_free != NULL)) |
302 | (VTBL->svt_free)(sv, mg); | |
93a17b20 | 303 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 304 | if (mg->mg_len >= 0) |
88e89b8a | 305 | Safefree(mg->mg_ptr); |
565764a8 | 306 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 307 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 308 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 309 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
310 | Safefree(mg); |
311 | } | |
312 | SvMAGIC(sv) = 0; | |
313 | return 0; | |
314 | } | |
315 | ||
316 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
317 | #include <signal.h> | |
318 | #endif | |
319 | ||
942e002e | 320 | U32 |
6cef1e77 IZ |
321 | magic_regdata_cnt(SV *sv, MAGIC *mg) |
322 | { | |
323 | dTHR; | |
324 | register char *s; | |
325 | register I32 i; | |
326 | register REGEXP *rx; | |
327 | char *t; | |
328 | ||
8f580fb8 IZ |
329 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
330 | if (mg->mg_obj) /* @+ */ | |
331 | return rx->nparens; | |
332 | else /* @- */ | |
333 | return rx->lastparen; | |
334 | } | |
335 | ||
942e002e | 336 | return (U32)-1; |
6cef1e77 IZ |
337 | } |
338 | ||
339 | int | |
340 | magic_regdatum_get(SV *sv, MAGIC *mg) | |
341 | { | |
342 | dTHR; | |
343 | register I32 paren; | |
344 | register char *s; | |
345 | register I32 i; | |
346 | register REGEXP *rx; | |
347 | char *t; | |
348 | ||
349 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
350 | paren = mg->mg_len; | |
351 | if (paren < 0) | |
352 | return 0; | |
353 | if (paren <= rx->nparens && | |
354 | (s = rx->startp[paren]) && | |
355 | (t = rx->endp[paren])) | |
356 | { | |
357 | if (mg->mg_obj) /* @+ */ | |
5c5e4c24 | 358 | i = t - rx->subbeg; |
6cef1e77 | 359 | else /* @- */ |
5c5e4c24 | 360 | i = s - rx->subbeg; |
6cef1e77 IZ |
361 | sv_setiv(sv,i); |
362 | } | |
363 | } | |
364 | return 0; | |
365 | } | |
366 | ||
93a17b20 | 367 | U32 |
8ac85365 | 368 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 369 | { |
a863c7d1 | 370 | dTHR; |
93a17b20 LW |
371 | register I32 paren; |
372 | register char *s; | |
373 | register I32 i; | |
d9f97599 | 374 | register REGEXP *rx; |
748a9306 | 375 | char *t; |
93a17b20 LW |
376 | |
377 | switch (*mg->mg_ptr) { | |
378 | case '1': case '2': case '3': case '4': | |
379 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 380 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
93a17b20 LW |
381 | paren = atoi(mg->mg_ptr); |
382 | getparen: | |
d9f97599 GS |
383 | if (paren <= rx->nparens && |
384 | (s = rx->startp[paren]) && | |
385 | (t = rx->endp[paren])) | |
bbce6d69 | 386 | { |
748a9306 | 387 | i = t - s; |
71be2cbc | 388 | if (i >= 0) |
93a17b20 | 389 | return i; |
93a17b20 | 390 | } |
93a17b20 | 391 | } |
748a9306 | 392 | return 0; |
93a17b20 | 393 | case '+': |
3280af22 | 394 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 395 | paren = rx->lastparen; |
13f57bf8 CS |
396 | if (paren) |
397 | goto getparen; | |
93a17b20 | 398 | } |
748a9306 | 399 | return 0; |
93a17b20 | 400 | case '`': |
3280af22 | 401 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
402 | if ((s = rx->subbeg) && rx->startp[0]) { |
403 | i = rx->startp[0] - s; | |
71be2cbc | 404 | if (i >= 0) |
93a17b20 | 405 | return i; |
93a17b20 | 406 | } |
93a17b20 | 407 | } |
748a9306 | 408 | return 0; |
93a17b20 | 409 | case '\'': |
3280af22 | 410 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
411 | if (rx->subend && (s = rx->endp[0])) { |
412 | i = rx->subend - s; | |
13f57bf8 | 413 | if (i >= 0) |
5cd24f17 | 414 | return i; |
93a17b20 | 415 | } |
93a17b20 | 416 | } |
748a9306 | 417 | return 0; |
93a17b20 | 418 | case ',': |
3280af22 | 419 | return (STRLEN)PL_ofslen; |
93a17b20 | 420 | case '\\': |
3280af22 | 421 | return (STRLEN)PL_orslen; |
93a17b20 LW |
422 | } |
423 | magic_get(sv,mg); | |
2d8e6c8d GS |
424 | if (!SvPOK(sv) && SvNIOK(sv)) { |
425 | STRLEN n_a; | |
426 | sv_2pv(sv, &n_a); | |
427 | } | |
93a17b20 LW |
428 | if (SvPOK(sv)) |
429 | return SvCUR(sv); | |
430 | return 0; | |
431 | } | |
432 | ||
599cee73 PM |
433 | #if 0 |
434 | static char * | |
435 | printW(sv) | |
436 | SV * sv ; | |
437 | { | |
438 | #if 1 | |
439 | return "" ; | |
440 | ||
441 | #else | |
442 | int i ; | |
443 | static char buffer[50] ; | |
444 | char buf1[20] ; | |
445 | char * p ; | |
446 | ||
447 | ||
448 | sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ; | |
449 | p = SvPVX(sv) ; | |
450 | for (i = 0; i < SvCUR(sv) ; ++ i) { | |
451 | sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ; | |
452 | strcat(buffer, buf1) ; | |
453 | } | |
454 | ||
455 | return buffer ; | |
456 | ||
457 | #endif | |
458 | } | |
459 | #endif | |
460 | ||
79072805 | 461 | int |
8ac85365 | 462 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 463 | { |
a863c7d1 | 464 | dTHR; |
79072805 LW |
465 | register I32 paren; |
466 | register char *s; | |
467 | register I32 i; | |
d9f97599 | 468 | register REGEXP *rx; |
748a9306 | 469 | char *t; |
79072805 LW |
470 | |
471 | switch (*mg->mg_ptr) { | |
748a9306 | 472 | case '\001': /* ^A */ |
3280af22 | 473 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 474 | break; |
599cee73 PM |
475 | case '\002': /* ^B */ |
476 | /* printf("magic_get $^B: ") ; */ | |
e24b16f9 | 477 | if (PL_curcop->cop_warnings == WARN_NONE) |
599cee73 PM |
478 | /* printf("WARN_NONE\n"), */ |
479 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
e24b16f9 | 480 | else if (PL_curcop->cop_warnings == WARN_ALL) |
599cee73 PM |
481 | /* printf("WARN_ALL\n"), */ |
482 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
483 | else | |
e24b16f9 GS |
484 | /* printf("some %s\n", printW(PL_curcop->cop_warnings)), */ |
485 | sv_setsv(sv, PL_curcop->cop_warnings); | |
599cee73 | 486 | break; |
49460fe6 NIS |
487 | case '\003': /* ^C */ |
488 | sv_setiv(sv, (IV)PL_minus_c); | |
489 | break; | |
490 | ||
79072805 | 491 | case '\004': /* ^D */ |
3280af22 | 492 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 | 493 | break; |
28f23441 | 494 | case '\005': /* ^E */ |
495 | #ifdef VMS | |
496 | { | |
497 | # include <descrip.h> | |
498 | # include <starlet.h> | |
499 | char msg[255]; | |
500 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 501 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 502 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
503 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
504 | else | |
505 | sv_setpv(sv,""); | |
506 | } | |
507 | #else | |
88e89b8a | 508 | #ifdef OS2 |
fb73857a | 509 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
510 | sv_setnv(sv, (double)errno); | |
511 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
512 | } else { | |
017f25f1 IZ |
513 | if (errno != errno_isOS2) { |
514 | int tmp = _syserrno(); | |
515 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
516 | Perl_rc = tmp; | |
517 | } | |
fb73857a | 518 | sv_setnv(sv, (double)Perl_rc); |
519 | sv_setpv(sv, os2error(Perl_rc)); | |
520 | } | |
88e89b8a | 521 | #else |
22fae026 TM |
522 | #ifdef WIN32 |
523 | { | |
524 | DWORD dwErr = GetLastError(); | |
525 | sv_setnv(sv, (double)dwErr); | |
526 | if (dwErr) | |
76e3520e GS |
527 | { |
528 | #ifdef PERL_OBJECT | |
529 | char *sMsg; | |
530 | DWORD dwLen; | |
531 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); | |
532 | sv_setpvn(sv, sMsg, dwLen); | |
533 | PerlProc_FreeBuf(sMsg); | |
534 | #else | |
22fae026 | 535 | win32_str_os_error(sv, dwErr); |
76e3520e GS |
536 | #endif |
537 | } | |
22fae026 TM |
538 | else |
539 | sv_setpv(sv, ""); | |
540 | SetLastError(dwErr); | |
541 | } | |
542 | #else | |
946ec16e | 543 | sv_setnv(sv, (double)errno); |
28f23441 | 544 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
545 | #endif | |
88e89b8a | 546 | #endif |
22fae026 | 547 | #endif |
946ec16e | 548 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 549 | break; |
79072805 | 550 | case '\006': /* ^F */ |
3280af22 | 551 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 552 | break; |
a0d0e21e | 553 | case '\010': /* ^H */ |
3280af22 | 554 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 555 | break; |
9d116dd7 | 556 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
557 | if (PL_inplace) |
558 | sv_setpv(sv, PL_inplace); | |
79072805 | 559 | else |
3280af22 | 560 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 561 | break; |
28f23441 | 562 | case '\017': /* ^O */ |
3280af22 | 563 | sv_setpv(sv, PL_osname); |
28f23441 | 564 | break; |
79072805 | 565 | case '\020': /* ^P */ |
3280af22 | 566 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 567 | break; |
fb73857a | 568 | case '\023': /* ^S */ |
d58bf5aa MB |
569 | { |
570 | dTHR; | |
3280af22 | 571 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 572 | SvOK_off(sv); |
3280af22 | 573 | else if (PL_in_eval) |
d58bf5aa MB |
574 | sv_setiv(sv, 1); |
575 | else | |
576 | sv_setiv(sv, 0); | |
577 | } | |
fb73857a | 578 | break; |
79072805 | 579 | case '\024': /* ^T */ |
88e89b8a | 580 | #ifdef BIG_TIME |
6b88bc9c | 581 | sv_setnv(sv, PL_basetime); |
88e89b8a | 582 | #else |
3280af22 | 583 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 584 | #endif |
79072805 LW |
585 | break; |
586 | case '\027': /* ^W */ | |
599cee73 | 587 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 LW |
588 | break; |
589 | case '1': case '2': case '3': case '4': | |
590 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 591 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
a863c7d1 MB |
592 | /* |
593 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
594 | * XXX Does the new way break anything? | |
595 | */ | |
596 | paren = atoi(mg->mg_ptr); | |
79072805 | 597 | getparen: |
d9f97599 GS |
598 | if (paren <= rx->nparens && |
599 | (s = rx->startp[paren]) && | |
600 | (t = rx->endp[paren])) | |
bbce6d69 | 601 | { |
748a9306 | 602 | i = t - s; |
13f57bf8 | 603 | getrx: |
748a9306 | 604 | if (i >= 0) { |
13f57bf8 | 605 | bool was_tainted; |
3280af22 NIS |
606 | if (PL_tainting) { |
607 | was_tainted = PL_tainted; | |
608 | PL_tainted = FALSE; | |
13f57bf8 | 609 | } |
79072805 | 610 | sv_setpvn(sv,s,i); |
3280af22 NIS |
611 | if (PL_tainting) |
612 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
613 | break; |
614 | } | |
79072805 | 615 | } |
79072805 | 616 | } |
3280af22 | 617 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
618 | break; |
619 | case '+': | |
3280af22 | 620 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 621 | paren = rx->lastparen; |
a0d0e21e LW |
622 | if (paren) |
623 | goto getparen; | |
79072805 | 624 | } |
3280af22 | 625 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
626 | break; |
627 | case '`': | |
3280af22 | 628 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
629 | if ((s = rx->subbeg) && rx->startp[0]) { |
630 | i = rx->startp[0] - s; | |
13f57bf8 | 631 | goto getrx; |
79072805 | 632 | } |
79072805 | 633 | } |
3280af22 | 634 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
635 | break; |
636 | case '\'': | |
3280af22 | 637 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
638 | if (rx->subend && (s = rx->endp[0])) { |
639 | i = rx->subend - s; | |
13f57bf8 | 640 | goto getrx; |
79072805 | 641 | } |
79072805 | 642 | } |
3280af22 | 643 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
644 | break; |
645 | case '.': | |
646 | #ifndef lint | |
3280af22 NIS |
647 | if (GvIO(PL_last_in_gv)) { |
648 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
649 | } |
650 | #endif | |
651 | break; | |
652 | case '?': | |
809a5acc | 653 | { |
809a5acc | 654 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 655 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
656 | LvTARGOFF(sv) = PL_statusvalue; |
657 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 658 | #endif |
809a5acc | 659 | } |
79072805 LW |
660 | break; |
661 | case '^': | |
3280af22 | 662 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
663 | if (s) |
664 | sv_setpv(sv,s); | |
665 | else { | |
3280af22 | 666 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
667 | sv_catpv(sv,"_TOP"); |
668 | } | |
669 | break; | |
670 | case '~': | |
3280af22 | 671 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 672 | if (!s) |
3280af22 | 673 | s = GvENAME(PL_defoutgv); |
79072805 LW |
674 | sv_setpv(sv,s); |
675 | break; | |
676 | #ifndef lint | |
677 | case '=': | |
3280af22 | 678 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
679 | break; |
680 | case '-': | |
3280af22 | 681 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
682 | break; |
683 | case '%': | |
3280af22 | 684 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
685 | break; |
686 | #endif | |
687 | case ':': | |
688 | break; | |
689 | case '/': | |
690 | break; | |
691 | case '[': | |
3280af22 | 692 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
693 | break; |
694 | case '|': | |
3280af22 | 695 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
696 | break; |
697 | case ',': | |
3280af22 | 698 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
699 | break; |
700 | case '\\': | |
3280af22 | 701 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
702 | break; |
703 | case '#': | |
3280af22 | 704 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
705 | break; |
706 | case '!': | |
a5f75d66 | 707 | #ifdef VMS |
946ec16e | 708 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 709 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 710 | #else |
88e89b8a | 711 | { |
712 | int saveerrno = errno; | |
946ec16e | 713 | sv_setnv(sv, (double)errno); |
88e89b8a | 714 | #ifdef OS2 |
715 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
716 | else | |
a5f75d66 | 717 | #endif |
2304df62 | 718 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 719 | errno = saveerrno; |
720 | } | |
721 | #endif | |
946ec16e | 722 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
723 | break; |
724 | case '<': | |
3280af22 | 725 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
726 | break; |
727 | case '>': | |
3280af22 | 728 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
729 | break; |
730 | case '(': | |
3280af22 NIS |
731 | sv_setiv(sv, (IV)PL_gid); |
732 | sv_setpvf(sv, "%Vd", (IV)PL_gid); | |
79072805 LW |
733 | goto add_groups; |
734 | case ')': | |
3280af22 NIS |
735 | sv_setiv(sv, (IV)PL_egid); |
736 | sv_setpvf(sv, "%Vd", (IV)PL_egid); | |
79072805 | 737 | add_groups: |
79072805 | 738 | #ifdef HAS_GETGROUPS |
79072805 | 739 | { |
a0d0e21e | 740 | Groups_t gary[NGROUPS]; |
79072805 | 741 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 742 | while (--i >= 0) |
fc36a67e | 743 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
744 | } |
745 | #endif | |
29355cf7 | 746 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
747 | break; |
748 | case '*': | |
749 | break; | |
750 | case '0': | |
751 | break; | |
a863c7d1 MB |
752 | #ifdef USE_THREADS |
753 | case '@': | |
38a03e6e | 754 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
755 | break; |
756 | #endif /* USE_THREADS */ | |
79072805 | 757 | } |
a0d0e21e | 758 | return 0; |
79072805 LW |
759 | } |
760 | ||
761 | int | |
8ac85365 | 762 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
763 | { |
764 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
765 | ||
766 | if (uf && uf->uf_val) | |
767 | (*uf->uf_val)(uf->uf_index, sv); | |
768 | return 0; | |
769 | } | |
770 | ||
771 | int | |
8ac85365 | 772 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
773 | { |
774 | register char *s; | |
88e89b8a | 775 | char *ptr; |
5aabfad6 | 776 | STRLEN len, klen; |
a0d0e21e | 777 | I32 i; |
1e422769 | 778 | |
a0d0e21e | 779 | s = SvPV(sv,len); |
5aabfad6 | 780 | ptr = MgPV(mg,klen); |
88e89b8a | 781 | my_setenv(ptr, s); |
1e422769 | 782 | |
a0d0e21e LW |
783 | #ifdef DYNAMIC_ENV_FETCH |
784 | /* We just undefd an environment var. Is a replacement */ | |
785 | /* waiting in the wings? */ | |
786 | if (!len) { | |
5aabfad6 | 787 | SV **valp; |
6b88bc9c | 788 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 789 | s = SvPV(*valp, len); |
a0d0e21e LW |
790 | } |
791 | #endif | |
1e422769 | 792 | |
39e571d4 | 793 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
794 | /* And you'll never guess what the dog had */ |
795 | /* in its mouth... */ | |
3280af22 | 796 | if (PL_tainting) { |
1e422769 | 797 | MgTAINTEDDIR_off(mg); |
798 | #ifdef VMS | |
5aabfad6 | 799 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 800 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
801 | struct stat sbuf; | |
802 | int i = 0, j = 0; | |
803 | ||
804 | do { /* DCL$PATH may be a search list */ | |
805 | while (1) { /* as may dev portion of any element */ | |
806 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
807 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
808 | cando_by_name(S_IWUSR,0,elt) ) { | |
809 | MgTAINTEDDIR_on(mg); | |
810 | return 0; | |
811 | } | |
812 | } | |
813 | if ((cp = strchr(elt, ':')) != Nullch) | |
814 | *cp = '\0'; | |
815 | if (my_trnlnm(elt, eltbuf, j++)) | |
816 | elt = eltbuf; | |
817 | else | |
818 | break; | |
819 | } | |
820 | j = 0; | |
821 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
822 | } | |
823 | #endif /* VMS */ | |
5aabfad6 | 824 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 825 | char *strend = s + len; |
463ee0b2 LW |
826 | |
827 | while (s < strend) { | |
96827780 | 828 | char tmpbuf[256]; |
1e422769 | 829 | struct stat st; |
96827780 | 830 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 831 | s, strend, ':', &i); |
463ee0b2 | 832 | s++; |
96827780 MB |
833 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
834 | || *tmpbuf != '/' | |
c6ed36e1 | 835 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 836 | MgTAINTEDDIR_on(mg); |
1e422769 | 837 | return 0; |
838 | } | |
463ee0b2 | 839 | } |
79072805 LW |
840 | } |
841 | } | |
39e571d4 | 842 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 843 | |
79072805 LW |
844 | return 0; |
845 | } | |
846 | ||
847 | int | |
8ac85365 | 848 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 849 | { |
2d8e6c8d GS |
850 | STRLEN n_a; |
851 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
852 | return 0; |
853 | } | |
854 | ||
88e89b8a | 855 | int |
8ac85365 | 856 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 857 | { |
858 | #if defined(VMS) | |
859 | die("Can't make list assignment to %%ENV on this system"); | |
860 | #else | |
d58bf5aa | 861 | dTHR; |
3280af22 | 862 | if (PL_localizing) { |
fb73857a | 863 | HE* entry; |
2d8e6c8d | 864 | STRLEN n_a; |
fb73857a | 865 | magic_clear_all_env(sv,mg); |
866 | hv_iterinit((HV*)sv); | |
867 | while (entry = hv_iternext((HV*)sv)) { | |
868 | I32 keylen; | |
869 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 870 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 871 | } |
872 | } | |
873 | #endif | |
874 | return 0; | |
875 | } | |
876 | ||
877 | int | |
8ac85365 | 878 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 879 | { |
3e3baf6d TB |
880 | #if defined(VMS) |
881 | die("Can't make list assignment to %%ENV on this system"); | |
882 | #else | |
883 | #ifdef WIN32 | |
884 | char *envv = GetEnvironmentStrings(); | |
885 | char *cur = envv; | |
886 | STRLEN len; | |
887 | while (*cur) { | |
888 | char *end = strchr(cur,'='); | |
889 | if (end && end != cur) { | |
890 | *end = '\0'; | |
891 | my_setenv(cur,Nullch); | |
892 | *end = '='; | |
893 | cur += strlen(end+1)+1; | |
894 | } | |
895 | else if ((len = strlen(cur))) | |
896 | cur += len+1; | |
897 | } | |
898 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
899 | #else |
900 | I32 i; | |
901 | ||
3280af22 | 902 | if (environ == PL_origenviron) |
66b1d557 HM |
903 | New(901, environ, 1, char*); |
904 | else | |
905 | for (i = 0; environ[i]; i++) | |
906 | Safefree(environ[i]); | |
907 | environ[0] = Nullch; | |
908 | ||
66b1d557 | 909 | #endif |
3e3baf6d TB |
910 | #endif |
911 | return 0; | |
66b1d557 HM |
912 | } |
913 | ||
914 | int | |
8ac85365 | 915 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 916 | { |
917 | I32 i; | |
2d8e6c8d | 918 | STRLEN n_a; |
88e89b8a | 919 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 920 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 921 | if (i) { |
22c35a8c GS |
922 | if(PL_psig_ptr[i]) |
923 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 924 | else { |
ff68c719 | 925 | Sighandler_t sigstate = rsignal_state(i); |
926 | ||
88e89b8a | 927 | /* cache state so we don't fetch it again */ |
ff68c719 | 928 | if(sigstate == SIG_IGN) |
88e89b8a | 929 | sv_setpv(sv,"IGNORE"); |
930 | else | |
3280af22 | 931 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 932 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 933 | SvTEMP_off(sv); |
934 | } | |
935 | } | |
936 | return 0; | |
937 | } | |
938 | int | |
8ac85365 | 939 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 940 | { |
941 | I32 i; | |
2d8e6c8d | 942 | STRLEN n_a; |
88e89b8a | 943 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 944 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 945 | if (i) { |
22c35a8c GS |
946 | if(PL_psig_ptr[i]) { |
947 | SvREFCNT_dec(PL_psig_ptr[i]); | |
948 | PL_psig_ptr[i]=0; | |
88e89b8a | 949 | } |
22c35a8c GS |
950 | if(PL_psig_name[i]) { |
951 | SvREFCNT_dec(PL_psig_name[i]); | |
952 | PL_psig_name[i]=0; | |
88e89b8a | 953 | } |
954 | } | |
955 | return 0; | |
956 | } | |
3d37d572 | 957 | |
85e6fe83 | 958 | int |
8ac85365 | 959 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 960 | { |
11343788 | 961 | dTHR; |
79072805 LW |
962 | register char *s; |
963 | I32 i; | |
748a9306 | 964 | SV** svp; |
e72dc28c | 965 | STRLEN len; |
a0d0e21e | 966 | |
e72dc28c | 967 | s = MgPV(mg,len); |
748a9306 LW |
968 | if (*s == '_') { |
969 | if (strEQ(s,"__DIE__")) | |
3280af22 | 970 | svp = &PL_diehook; |
748a9306 | 971 | else if (strEQ(s,"__WARN__")) |
3280af22 | 972 | svp = &PL_warnhook; |
748a9306 | 973 | else if (strEQ(s,"__PARSE__")) |
3280af22 | 974 | svp = &PL_parsehook; |
748a9306 LW |
975 | else |
976 | croak("No such hook: %s", s); | |
977 | i = 0; | |
4633a7c4 LW |
978 | if (*svp) { |
979 | SvREFCNT_dec(*svp); | |
980 | *svp = 0; | |
981 | } | |
748a9306 LW |
982 | } |
983 | else { | |
984 | i = whichsig(s); /* ...no, a brick */ | |
985 | if (!i) { | |
599cee73 PM |
986 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
987 | warner(WARN_SIGNAL, "No such signal: SIG%s", s); | |
748a9306 LW |
988 | return 0; |
989 | } | |
22c35a8c GS |
990 | SvREFCNT_dec(PL_psig_name[i]); |
991 | SvREFCNT_dec(PL_psig_ptr[i]); | |
992 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 993 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 994 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 995 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 996 | } |
a0d0e21e | 997 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 998 | if (i) |
3280af22 | 999 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1000 | else |
1001 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1002 | return 0; |
1003 | } | |
e72dc28c | 1004 | s = SvPV_force(sv,len); |
748a9306 LW |
1005 | if (strEQ(s,"IGNORE")) { |
1006 | if (i) | |
ff68c719 | 1007 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1008 | else |
1009 | *svp = 0; | |
1010 | } | |
1011 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1012 | if (i) | |
ff68c719 | 1013 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1014 | else |
1015 | *svp = 0; | |
1016 | } | |
79072805 | 1017 | else { |
5aabfad6 | 1018 | /* |
1019 | * We should warn if HINT_STRICT_REFS, but without | |
1020 | * access to a known hint bit in a known OP, we can't | |
1021 | * tell whether HINT_STRICT_REFS is in force or not. | |
1022 | */ | |
46fc3d4c | 1023 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1024 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1025 | if (i) |
3280af22 | 1026 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1027 | else |
1028 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1029 | } |
1030 | return 0; | |
1031 | } | |
1032 | ||
1033 | int | |
8ac85365 | 1034 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 1035 | { |
3280af22 | 1036 | PL_sub_generation++; |
463ee0b2 LW |
1037 | return 0; |
1038 | } | |
1039 | ||
a0d0e21e LW |
1040 | #ifdef OVERLOAD |
1041 | ||
463ee0b2 | 1042 | int |
8ac85365 | 1043 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 1044 | { |
a0d0e21e | 1045 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1046 | PL_amagic_generation++; |
463ee0b2 | 1047 | |
a0d0e21e LW |
1048 | return 0; |
1049 | } | |
1050 | #endif /* OVERLOAD */ | |
463ee0b2 | 1051 | |
946ec16e | 1052 | int |
6ff81951 GS |
1053 | magic_getnkeys(SV *sv, MAGIC *mg) |
1054 | { | |
1055 | HV *hv = (HV*)LvTARG(sv); | |
1056 | HE *entry; | |
1057 | I32 i = 0; | |
1058 | ||
1059 | if (hv) { | |
1060 | (void) hv_iterinit(hv); | |
33c27489 | 1061 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1062 | i = HvKEYS(hv); |
1063 | else { | |
1064 | /*SUPPRESS 560*/ | |
1065 | while (entry = hv_iternext(hv)) { | |
1066 | i++; | |
1067 | } | |
1068 | } | |
1069 | } | |
1070 | ||
1071 | sv_setiv(sv, (IV)i); | |
1072 | return 0; | |
1073 | } | |
1074 | ||
1075 | int | |
8ac85365 | 1076 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 1077 | { |
1078 | if (LvTARG(sv)) { | |
1079 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1080 | } |
1081 | return 0; | |
93965878 | 1082 | } |
946ec16e | 1083 | |
e336de0d | 1084 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1085 | STATIC int |
33c27489 | 1086 | magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1087 | { |
1088 | dSP; | |
463ee0b2 | 1089 | |
924508f0 GS |
1090 | PUSHMARK(SP); |
1091 | EXTEND(SP, n); | |
33c27489 | 1092 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1093 | if (n > 1) { |
1094 | if (mg->mg_ptr) { | |
565764a8 DL |
1095 | if (mg->mg_len >= 0) |
1096 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
1097 | else if (mg->mg_len == HEf_SVKEY) | |
93965878 NIS |
1098 | PUSHs((SV*)mg->mg_ptr); |
1099 | } | |
1100 | else if (mg->mg_type == 'p') { | |
565764a8 | 1101 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1102 | } |
1103 | } | |
1104 | if (n > 2) { | |
1105 | PUSHs(val); | |
88e89b8a | 1106 | } |
463ee0b2 LW |
1107 | PUTBACK; |
1108 | ||
93965878 | 1109 | return perl_call_method(meth, flags); |
946ec16e | 1110 | } |
1111 | ||
76e3520e | 1112 | STATIC int |
8ac85365 | 1113 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1114 | { |
1115 | dSP; | |
463ee0b2 | 1116 | |
a0d0e21e LW |
1117 | ENTER; |
1118 | SAVETMPS; | |
e788e7d3 | 1119 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1120 | |
33c27489 | 1121 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1122 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1123 | } |
463ee0b2 | 1124 | |
d3acc0f7 | 1125 | POPSTACK; |
a0d0e21e LW |
1126 | FREETMPS; |
1127 | LEAVE; | |
1128 | return 0; | |
1129 | } | |
463ee0b2 | 1130 | |
a0d0e21e | 1131 | int |
8ac85365 | 1132 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1133 | { |
1134 | magic_methpack(sv,mg,"FETCH"); | |
1135 | if (mg->mg_ptr) | |
1136 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1137 | return 0; |
1138 | } | |
1139 | ||
1140 | int | |
8ac85365 | 1141 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d GS |
1142 | { |
1143 | dSP; | |
a60c0954 | 1144 | ENTER; |
e788e7d3 | 1145 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1146 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1147 | POPSTACK; |
a60c0954 | 1148 | LEAVE; |
463ee0b2 LW |
1149 | return 0; |
1150 | } | |
1151 | ||
1152 | int | |
8ac85365 | 1153 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1154 | { |
a0d0e21e LW |
1155 | return magic_methpack(sv,mg,"DELETE"); |
1156 | } | |
463ee0b2 | 1157 | |
93965878 NIS |
1158 | |
1159 | U32 | |
1160 | magic_sizepack(SV *sv, MAGIC *mg) | |
1161 | { | |
e336de0d | 1162 | dSP; |
93965878 NIS |
1163 | U32 retval = 0; |
1164 | ||
1165 | ENTER; | |
1166 | SAVETMPS; | |
e788e7d3 | 1167 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1168 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1169 | sv = *PL_stack_sp--; |
a60c0954 | 1170 | retval = (U32) SvIV(sv)-1; |
93965878 | 1171 | } |
d3acc0f7 | 1172 | POPSTACK; |
93965878 NIS |
1173 | FREETMPS; |
1174 | LEAVE; | |
1175 | return retval; | |
1176 | } | |
1177 | ||
8ac85365 | 1178 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1179 | { |
1180 | dSP; | |
463ee0b2 | 1181 | |
e336de0d | 1182 | ENTER; |
e788e7d3 | 1183 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1184 | PUSHMARK(SP); |
33c27489 | 1185 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1186 | PUTBACK; |
a0d0e21e | 1187 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1188 | POPSTACK; |
a60c0954 | 1189 | LEAVE; |
463ee0b2 LW |
1190 | return 0; |
1191 | } | |
1192 | ||
1193 | int | |
8ac85365 | 1194 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1195 | { |
463ee0b2 | 1196 | dSP; |
a0d0e21e | 1197 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1198 | |
1199 | ENTER; | |
a0d0e21e | 1200 | SAVETMPS; |
e788e7d3 | 1201 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1202 | PUSHMARK(SP); |
1203 | EXTEND(SP, 2); | |
33c27489 | 1204 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1205 | if (SvOK(key)) |
1206 | PUSHs(key); | |
1207 | PUTBACK; | |
1208 | ||
a0d0e21e | 1209 | if (perl_call_method(meth, G_SCALAR)) |
3280af22 | 1210 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1211 | |
d3acc0f7 | 1212 | POPSTACK; |
a0d0e21e LW |
1213 | FREETMPS; |
1214 | LEAVE; | |
79072805 LW |
1215 | return 0; |
1216 | } | |
1217 | ||
1218 | int | |
8ac85365 | 1219 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1220 | { |
1221 | return magic_methpack(sv,mg,"EXISTS"); | |
1222 | } | |
1223 | ||
1224 | int | |
8ac85365 | 1225 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1226 | { |
11343788 | 1227 | dTHR; |
79072805 LW |
1228 | OP *o; |
1229 | I32 i; | |
1230 | GV* gv; | |
1231 | SV** svp; | |
2d8e6c8d | 1232 | STRLEN n_a; |
79072805 | 1233 | |
3280af22 | 1234 | gv = PL_DBline; |
79072805 | 1235 | i = SvTRUE(sv); |
188ea221 | 1236 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1237 | atoi(MgPV(mg,n_a)), FALSE); |
8990e307 | 1238 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1239 | o->op_private = i; |
79072805 LW |
1240 | else |
1241 | warn("Can't break at that line\n"); | |
1242 | return 0; | |
1243 | } | |
1244 | ||
1245 | int | |
8ac85365 | 1246 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1247 | { |
0f15f207 | 1248 | dTHR; |
3280af22 | 1249 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1250 | return 0; |
1251 | } | |
1252 | ||
1253 | int | |
8ac85365 | 1254 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1255 | { |
0f15f207 | 1256 | dTHR; |
3280af22 | 1257 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1258 | return 0; |
1259 | } | |
1260 | ||
1261 | int | |
8ac85365 | 1262 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1263 | { |
1264 | SV* lsv = LvTARG(sv); | |
1265 | ||
1266 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1267 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1268 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1269 | dTHR; |
a0ed51b3 LW |
1270 | I32 i = mg->mg_len; |
1271 | if (IN_UTF8) | |
1272 | sv_pos_b2u(lsv, &i); | |
1273 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1274 | return 0; |
1275 | } | |
1276 | } | |
1277 | (void)SvOK_off(sv); | |
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | int | |
8ac85365 | 1282 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1283 | { |
1284 | SV* lsv = LvTARG(sv); | |
1285 | SSize_t pos; | |
1286 | STRLEN len; | |
a0ed51b3 | 1287 | STRLEN ulen; |
c485e607 | 1288 | dTHR; |
a0d0e21e LW |
1289 | |
1290 | mg = 0; | |
1291 | ||
1292 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1293 | mg = mg_find(lsv, 'g'); | |
1294 | if (!mg) { | |
1295 | if (!SvOK(sv)) | |
1296 | return 0; | |
1297 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1298 | mg = mg_find(lsv, 'g'); | |
1299 | } | |
1300 | else if (!SvOK(sv)) { | |
565764a8 | 1301 | mg->mg_len = -1; |
a0d0e21e LW |
1302 | return 0; |
1303 | } | |
1304 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1305 | ||
c485e607 | 1306 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 LW |
1307 | |
1308 | if (IN_UTF8) { | |
1309 | ulen = sv_len_utf8(lsv); | |
1310 | if (ulen) | |
1311 | len = ulen; | |
1312 | else | |
1313 | ulen = 0; | |
1314 | } | |
1315 | ||
a0d0e21e LW |
1316 | if (pos < 0) { |
1317 | pos += len; | |
1318 | if (pos < 0) | |
1319 | pos = 0; | |
1320 | } | |
1321 | else if (pos > len) | |
1322 | pos = len; | |
a0ed51b3 LW |
1323 | |
1324 | if (ulen) { | |
1325 | I32 p = pos; | |
1326 | sv_pos_u2b(lsv, &p, 0); | |
1327 | pos = p; | |
1328 | } | |
1329 | ||
565764a8 | 1330 | mg->mg_len = pos; |
71be2cbc | 1331 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1332 | |
79072805 LW |
1333 | return 0; |
1334 | } | |
1335 | ||
1336 | int | |
8ac85365 | 1337 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1338 | { |
8646b087 | 1339 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1340 | SvFAKE_off(sv); | |
946ec16e | 1341 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1342 | SvFAKE_on(sv); |
1343 | } | |
1344 | else | |
946ec16e | 1345 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1346 | return 0; |
1347 | } | |
1348 | ||
1349 | int | |
8ac85365 | 1350 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1351 | { |
1352 | register char *s; | |
1353 | GV* gv; | |
2d8e6c8d | 1354 | STRLEN n_a; |
79072805 LW |
1355 | |
1356 | if (!SvOK(sv)) | |
1357 | return 0; | |
2d8e6c8d | 1358 | s = SvPV(sv, n_a); |
79072805 LW |
1359 | if (*s == '*' && s[1]) |
1360 | s++; | |
85e6fe83 | 1361 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1362 | if (sv == (SV*)gv) |
1363 | return 0; | |
1364 | if (GvGP(sv)) | |
88e89b8a | 1365 | gp_free((GV*)sv); |
79072805 | 1366 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1367 | return 0; |
1368 | } | |
1369 | ||
1370 | int | |
6ff81951 GS |
1371 | magic_getsubstr(SV *sv, MAGIC *mg) |
1372 | { | |
1373 | STRLEN len; | |
1374 | SV *lsv = LvTARG(sv); | |
1375 | char *tmps = SvPV(lsv,len); | |
1376 | I32 offs = LvTARGOFF(sv); | |
1377 | I32 rem = LvTARGLEN(sv); | |
1378 | ||
1379 | if (offs > len) | |
1380 | offs = len; | |
1381 | if (rem + offs > len) | |
1382 | rem = len - offs; | |
1383 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | int | |
8ac85365 | 1388 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1389 | { |
8990e307 LW |
1390 | STRLEN len; |
1391 | char *tmps = SvPV(sv,len); | |
1392 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1393 | return 0; |
1394 | } | |
1395 | ||
1396 | int | |
8ac85365 | 1397 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1398 | { |
a863c7d1 | 1399 | dTHR; |
565764a8 DL |
1400 | TAINT_IF((mg->mg_len & 1) || |
1401 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1402 | return 0; |
1403 | } | |
1404 | ||
1405 | int | |
8ac85365 | 1406 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1407 | { |
11343788 | 1408 | dTHR; |
3280af22 NIS |
1409 | if (PL_localizing) { |
1410 | if (PL_localizing == 1) | |
565764a8 | 1411 | mg->mg_len <<= 1; |
748a9306 | 1412 | else |
565764a8 | 1413 | mg->mg_len >>= 1; |
a0d0e21e | 1414 | } |
3280af22 | 1415 | else if (PL_tainted) |
565764a8 | 1416 | mg->mg_len |= 1; |
748a9306 | 1417 | else |
565764a8 | 1418 | mg->mg_len &= ~1; |
463ee0b2 LW |
1419 | return 0; |
1420 | } | |
1421 | ||
1422 | int | |
6ff81951 GS |
1423 | magic_getvec(SV *sv, MAGIC *mg) |
1424 | { | |
1425 | SV *lsv = LvTARG(sv); | |
1426 | unsigned char *s; | |
1427 | unsigned long retnum; | |
1428 | STRLEN lsvlen; | |
1429 | I32 len; | |
1430 | I32 offset; | |
1431 | I32 size; | |
1432 | ||
1433 | if (!lsv) { | |
1434 | SvOK_off(sv); | |
1435 | return 0; | |
1436 | } | |
1437 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1438 | offset = LvTARGOFF(sv); | |
1439 | size = LvTARGLEN(sv); | |
1440 | len = (offset + size + 7) / 8; | |
1441 | ||
1442 | /* Copied from pp_vec() */ | |
1443 | ||
1444 | if (len > lsvlen) { | |
1445 | if (size <= 8) | |
1446 | retnum = 0; | |
1447 | else { | |
1448 | offset >>= 3; | |
1449 | if (size == 16) { | |
1450 | if (offset >= lsvlen) | |
1451 | retnum = 0; | |
1452 | else | |
1453 | retnum = (unsigned long) s[offset] << 8; | |
1454 | } | |
1455 | else if (size == 32) { | |
1456 | if (offset >= lsvlen) | |
1457 | retnum = 0; | |
1458 | else if (offset + 1 >= lsvlen) | |
1459 | retnum = (unsigned long) s[offset] << 24; | |
1460 | else if (offset + 2 >= lsvlen) | |
1461 | retnum = ((unsigned long) s[offset] << 24) + | |
1462 | ((unsigned long) s[offset + 1] << 16); | |
1463 | else | |
1464 | retnum = ((unsigned long) s[offset] << 24) + | |
1465 | ((unsigned long) s[offset + 1] << 16) + | |
1466 | (s[offset + 2] << 8); | |
1467 | } | |
1468 | } | |
1469 | } | |
1470 | else if (size < 8) | |
1471 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1472 | else { | |
1473 | offset >>= 3; | |
1474 | if (size == 8) | |
1475 | retnum = s[offset]; | |
1476 | else if (size == 16) | |
1477 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1478 | else if (size == 32) | |
1479 | retnum = ((unsigned long) s[offset] << 24) + | |
1480 | ((unsigned long) s[offset + 1] << 16) + | |
1481 | (s[offset + 2] << 8) + s[offset+3]; | |
1482 | } | |
1483 | ||
1484 | sv_setuv(sv, (UV)retnum); | |
1485 | return 0; | |
1486 | } | |
1487 | ||
1488 | int | |
8ac85365 | 1489 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1490 | { |
1491 | do_vecset(sv); /* XXX slurp this routine */ | |
1492 | return 0; | |
1493 | } | |
1494 | ||
1495 | int | |
8ac85365 | 1496 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1497 | { |
71be2cbc | 1498 | SV *targ = Nullsv; |
5f05dabc | 1499 | if (LvTARGLEN(sv)) { |
68dc0745 | 1500 | if (mg->mg_obj) { |
74e13ce4 GS |
1501 | SV *ahv = LvTARG(sv); |
1502 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1503 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1504 | if (he) | |
1505 | targ = HeVAL(he); | |
1506 | } | |
1507 | else { | |
1508 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1509 | if (svp) | |
1510 | targ = *svp; | |
1511 | } | |
68dc0745 | 1512 | } |
1513 | else { | |
3c78fafa | 1514 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1515 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1516 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1517 | } | |
3280af22 | 1518 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1519 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1520 | /* somebody else defined it for us */ |
1521 | SvREFCNT_dec(LvTARG(sv)); | |
1522 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1523 | LvTARGLEN(sv) = 0; | |
1524 | SvREFCNT_dec(mg->mg_obj); | |
1525 | mg->mg_obj = Nullsv; | |
1526 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1527 | } | |
5f05dabc | 1528 | } |
71be2cbc | 1529 | else |
1530 | targ = LvTARG(sv); | |
3280af22 | 1531 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1532 | return 0; |
1533 | } | |
1534 | ||
1535 | int | |
8ac85365 | 1536 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1537 | { |
1538 | if (LvTARGLEN(sv)) | |
68dc0745 | 1539 | vivify_defelem(sv); |
1540 | if (LvTARG(sv)) { | |
5f05dabc | 1541 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1542 | SvSETMAGIC(LvTARG(sv)); |
1543 | } | |
5f05dabc | 1544 | return 0; |
1545 | } | |
1546 | ||
71be2cbc | 1547 | void |
8ac85365 | 1548 | vivify_defelem(SV *sv) |
71be2cbc | 1549 | { |
e858de61 | 1550 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1551 | MAGIC *mg; |
1552 | SV *value = Nullsv; | |
71be2cbc | 1553 | |
68dc0745 | 1554 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1555 | return; |
68dc0745 | 1556 | if (mg->mg_obj) { |
74e13ce4 | 1557 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1558 | STRLEN n_a; |
74e13ce4 | 1559 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1560 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1561 | if (he) |
1562 | value = HeVAL(he); | |
1563 | } | |
1564 | else { | |
af7f9c15 | 1565 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1566 | if (svp) |
1567 | value = *svp; | |
1568 | } | |
3280af22 | 1569 | if (!value || value == &PL_sv_undef) |
2d8e6c8d | 1570 | croak(PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1571 | } |
68dc0745 | 1572 | else { |
1573 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1574 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1575 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1576 | else { | |
1577 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1578 | if (!svp || (value = *svp) == &PL_sv_undef) |
22c35a8c | 1579 | croak(PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1580 | } |
1581 | } | |
3e3baf6d | 1582 | (void)SvREFCNT_inc(value); |
68dc0745 | 1583 | SvREFCNT_dec(LvTARG(sv)); |
1584 | LvTARG(sv) = value; | |
71be2cbc | 1585 | LvTARGLEN(sv) = 0; |
68dc0745 | 1586 | SvREFCNT_dec(mg->mg_obj); |
1587 | mg->mg_obj = Nullsv; | |
1588 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1589 | } |
1590 | ||
1591 | int | |
8ac85365 | 1592 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1593 | { |
565764a8 | 1594 | mg->mg_len = -1; |
c6496cc7 | 1595 | SvSCREAM_off(sv); |
93a17b20 LW |
1596 | return 0; |
1597 | } | |
1598 | ||
1599 | int | |
8ac85365 | 1600 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1601 | { |
463ee0b2 | 1602 | sv_unmagic(sv, 'B'); |
79072805 LW |
1603 | SvVALID_off(sv); |
1604 | return 0; | |
1605 | } | |
1606 | ||
1607 | int | |
8ac85365 | 1608 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1609 | { |
1610 | sv_unmagic(sv, 'f'); | |
1611 | SvCOMPILED_off(sv); | |
1612 | return 0; | |
1613 | } | |
1614 | ||
1615 | int | |
8ac85365 | 1616 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1617 | { |
1618 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1619 | ||
1620 | if (uf && uf->uf_set) | |
1621 | (*uf->uf_set)(uf->uf_index, sv); | |
1622 | return 0; | |
1623 | } | |
1624 | ||
c277df42 IZ |
1625 | int |
1626 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1627 | { | |
1628 | regexp *re = (regexp *)mg->mg_obj; | |
1629 | ReREFCNT_dec(re); | |
1630 | return 0; | |
1631 | } | |
1632 | ||
7a4c00b4 | 1633 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1634 | int |
8ac85365 | 1635 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1636 | { |
1637 | /* | |
838b5b74 | 1638 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1639 | * and vanished with a faint plop. |
1640 | */ | |
7a4c00b4 | 1641 | if (mg->mg_ptr) { |
1642 | Safefree(mg->mg_ptr); | |
1643 | mg->mg_ptr = NULL; | |
565764a8 | 1644 | mg->mg_len = -1; |
7a4c00b4 | 1645 | } |
bbce6d69 | 1646 | return 0; |
1647 | } | |
7a4c00b4 | 1648 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1649 | |
1650 | int | |
8ac85365 | 1651 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1652 | { |
11343788 | 1653 | dTHR; |
79072805 LW |
1654 | register char *s; |
1655 | I32 i; | |
8990e307 | 1656 | STRLEN len; |
79072805 | 1657 | switch (*mg->mg_ptr) { |
748a9306 | 1658 | case '\001': /* ^A */ |
3280af22 | 1659 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1660 | break; |
599cee73 PM |
1661 | case '\002': /* ^B */ |
1662 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1663 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) | |
e24b16f9 | 1664 | PL_compiling.cop_warnings = WARN_ALL; |
599cee73 | 1665 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 | 1666 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 | 1667 | else { |
e24b16f9 GS |
1668 | if (PL_compiling.cop_warnings != WARN_NONE && |
1669 | PL_compiling.cop_warnings != WARN_ALL) | |
1670 | sv_setsv(PL_compiling.cop_warnings, sv); | |
599cee73 | 1671 | else |
e24b16f9 | 1672 | PL_compiling.cop_warnings = newSVsv(sv) ; |
599cee73 PM |
1673 | } |
1674 | } | |
1675 | break; | |
49460fe6 NIS |
1676 | |
1677 | case '\003': /* ^C */ | |
1678 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1679 | break; | |
1680 | ||
79072805 | 1681 | case '\004': /* ^D */ |
3280af22 | 1682 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1683 | DEBUG_x(dump_all()); |
1684 | break; | |
28f23441 | 1685 | case '\005': /* ^E */ |
1686 | #ifdef VMS | |
1687 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1688 | #else | |
22fae026 TM |
1689 | #ifdef WIN32 |
1690 | SetLastError( SvIV(sv) ); | |
1691 | #else | |
f86702cc | 1692 | /* will anyone ever use this? */ |
1693 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1694 | #endif |
22fae026 | 1695 | #endif |
28f23441 | 1696 | break; |
79072805 | 1697 | case '\006': /* ^F */ |
3280af22 | 1698 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1699 | break; |
a0d0e21e | 1700 | case '\010': /* ^H */ |
3280af22 | 1701 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1702 | break; |
9d116dd7 | 1703 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1704 | if (PL_inplace) |
1705 | Safefree(PL_inplace); | |
79072805 | 1706 | if (SvOK(sv)) |
2d8e6c8d | 1707 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1708 | else |
3280af22 | 1709 | PL_inplace = Nullch; |
79072805 | 1710 | break; |
28f23441 | 1711 | case '\017': /* ^O */ |
3280af22 NIS |
1712 | if (PL_osname) |
1713 | Safefree(PL_osname); | |
28f23441 | 1714 | if (SvOK(sv)) |
2d8e6c8d | 1715 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1716 | else |
3280af22 | 1717 | PL_osname = Nullch; |
28f23441 | 1718 | break; |
79072805 | 1719 | case '\020': /* ^P */ |
3280af22 | 1720 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1721 | break; |
1722 | case '\024': /* ^T */ | |
88e89b8a | 1723 | #ifdef BIG_TIME |
6b88bc9c | 1724 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1725 | #else |
3280af22 | 1726 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1727 | #endif |
79072805 LW |
1728 | break; |
1729 | case '\027': /* ^W */ | |
599cee73 PM |
1730 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1731 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1732 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; | |
1733 | } | |
79072805 LW |
1734 | break; |
1735 | case '.': | |
3280af22 NIS |
1736 | if (PL_localizing) { |
1737 | if (PL_localizing == 1) | |
1738 | save_sptr((SV**)&PL_last_in_gv); | |
748a9306 | 1739 | } |
3280af22 NIS |
1740 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1741 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1742 | break; |
1743 | case '^': | |
3280af22 | 1744 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1745 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1746 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1747 | break; |
1748 | case '~': | |
3280af22 | 1749 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1750 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1751 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1752 | break; |
1753 | case '=': | |
3280af22 | 1754 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1755 | break; |
1756 | case '-': | |
3280af22 NIS |
1757 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1758 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1759 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1760 | break; |
1761 | case '%': | |
3280af22 | 1762 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1763 | break; |
1764 | case '|': | |
4b65379b | 1765 | { |
3280af22 | 1766 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1767 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1768 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1769 | else { | |
1770 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1771 | PerlIO *ofp = IoOFP(io); | |
1772 | if (ofp) | |
1773 | (void)PerlIO_flush(ofp); | |
1774 | IoFLAGS(io) |= IOf_FLUSH; | |
1775 | } | |
1776 | } | |
79072805 LW |
1777 | } |
1778 | break; | |
1779 | case '*': | |
463ee0b2 | 1780 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1781 | PL_multiline = (i != 0); |
79072805 LW |
1782 | break; |
1783 | case '/': | |
3280af22 NIS |
1784 | SvREFCNT_dec(PL_nrs); |
1785 | PL_nrs = newSVsv(sv); | |
1786 | SvREFCNT_dec(PL_rs); | |
1787 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1788 | break; |
1789 | case '\\': | |
3280af22 NIS |
1790 | if (PL_ors) |
1791 | Safefree(PL_ors); | |
e3c19b7b | 1792 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 | 1793 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b | 1794 | else { |
3280af22 NIS |
1795 | PL_ors = Nullch; |
1796 | PL_orslen = 0; | |
e3c19b7b | 1797 | } |
79072805 LW |
1798 | break; |
1799 | case ',': | |
3280af22 NIS |
1800 | if (PL_ofs) |
1801 | Safefree(PL_ofs); | |
1802 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1803 | break; |
1804 | case '#': | |
3280af22 NIS |
1805 | if (PL_ofmt) |
1806 | Safefree(PL_ofmt); | |
2d8e6c8d | 1807 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1808 | break; |
1809 | case '[': | |
3280af22 | 1810 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1811 | break; |
1812 | case '?': | |
ff0cee69 | 1813 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1814 | if (PL_localizing == 2) { |
1815 | PL_statusvalue = LvTARGOFF(sv); | |
1816 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1817 | } |
1818 | else | |
1819 | #endif | |
1820 | #ifdef VMSISH_STATUS | |
1821 | if (VMSISH_STATUS) | |
1822 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1823 | else | |
1824 | #endif | |
1825 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1826 | break; |
1827 | case '!': | |
78987ded | 1828 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1829 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1830 | break; |
1831 | case '<': | |
3280af22 NIS |
1832 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1833 | if (PL_delaymagic) { | |
1834 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1835 | break; /* don't do magic till later */ |
1836 | } | |
1837 | #ifdef HAS_SETRUID | |
b28d0864 | 1838 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1839 | #else |
1840 | #ifdef HAS_SETREUID | |
3280af22 | 1841 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1842 | #else |
85e6fe83 | 1843 | #ifdef HAS_SETRESUID |
b28d0864 | 1844 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1845 | #else |
b28d0864 NIS |
1846 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1847 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1848 | else { |
b28d0864 | 1849 | PL_uid = (I32)PerlProc_getuid(); |
463ee0b2 | 1850 | croak("setruid() not implemented"); |
a0d0e21e | 1851 | } |
79072805 LW |
1852 | #endif |
1853 | #endif | |
85e6fe83 | 1854 | #endif |
3280af22 NIS |
1855 | PL_uid = (I32)PerlProc_getuid(); |
1856 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1857 | break; |
1858 | case '>': | |
3280af22 NIS |
1859 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1860 | if (PL_delaymagic) { | |
1861 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1862 | break; /* don't do magic till later */ |
1863 | } | |
1864 | #ifdef HAS_SETEUID | |
3280af22 | 1865 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1866 | #else |
1867 | #ifdef HAS_SETREUID | |
b28d0864 | 1868 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1869 | #else |
1870 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1871 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1872 | #else |
b28d0864 NIS |
1873 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1874 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1875 | else { |
b28d0864 | 1876 | PL_euid = (I32)PerlProc_geteuid(); |
463ee0b2 | 1877 | croak("seteuid() not implemented"); |
a0d0e21e | 1878 | } |
79072805 LW |
1879 | #endif |
1880 | #endif | |
85e6fe83 | 1881 | #endif |
3280af22 NIS |
1882 | PL_euid = (I32)PerlProc_geteuid(); |
1883 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1884 | break; |
1885 | case '(': | |
3280af22 NIS |
1886 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1887 | if (PL_delaymagic) { | |
1888 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1889 | break; /* don't do magic till later */ |
1890 | } | |
1891 | #ifdef HAS_SETRGID | |
b28d0864 | 1892 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1893 | #else |
1894 | #ifdef HAS_SETREGID | |
3280af22 | 1895 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1896 | #else |
1897 | #ifdef HAS_SETRESGID | |
b28d0864 | 1898 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1899 | #else |
b28d0864 NIS |
1900 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1901 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1902 | else { |
b28d0864 | 1903 | PL_gid = (I32)PerlProc_getgid(); |
463ee0b2 | 1904 | croak("setrgid() not implemented"); |
748a9306 | 1905 | } |
79072805 LW |
1906 | #endif |
1907 | #endif | |
85e6fe83 | 1908 | #endif |
3280af22 NIS |
1909 | PL_gid = (I32)PerlProc_getgid(); |
1910 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1911 | break; |
1912 | case ')': | |
5cd24f17 | 1913 | #ifdef HAS_SETGROUPS |
1914 | { | |
2d8e6c8d | 1915 | char *p = SvPV(sv, len); |
5cd24f17 | 1916 | Groups_t gary[NGROUPS]; |
1917 | ||
1918 | SET_NUMERIC_STANDARD(); | |
1919 | while (isSPACE(*p)) | |
1920 | ++p; | |
3280af22 | 1921 | PL_egid = I_V(atof(p)); |
5cd24f17 | 1922 | for (i = 0; i < NGROUPS; ++i) { |
1923 | while (*p && !isSPACE(*p)) | |
1924 | ++p; | |
1925 | while (isSPACE(*p)) | |
1926 | ++p; | |
1927 | if (!*p) | |
1928 | break; | |
1929 | gary[i] = I_V(atof(p)); | |
1930 | } | |
8cc95fdb | 1931 | if (i) |
1932 | (void)setgroups(i, gary); | |
5cd24f17 | 1933 | } |
1934 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1935 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1936 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1937 | if (PL_delaymagic) { |
1938 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1939 | break; /* don't do magic till later */ |
1940 | } | |
1941 | #ifdef HAS_SETEGID | |
3280af22 | 1942 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1943 | #else |
1944 | #ifdef HAS_SETREGID | |
b28d0864 | 1945 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1946 | #else |
1947 | #ifdef HAS_SETRESGID | |
b28d0864 | 1948 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1949 | #else |
b28d0864 NIS |
1950 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1951 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1952 | else { |
b28d0864 | 1953 | PL_egid = (I32)PerlProc_getegid(); |
463ee0b2 | 1954 | croak("setegid() not implemented"); |
748a9306 | 1955 | } |
79072805 LW |
1956 | #endif |
1957 | #endif | |
85e6fe83 | 1958 | #endif |
3280af22 NIS |
1959 | PL_egid = (I32)PerlProc_getegid(); |
1960 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1961 | break; |
1962 | case ':': | |
2d8e6c8d | 1963 | PL_chopset = SvPV_force(sv,len); |
79072805 LW |
1964 | break; |
1965 | case '0': | |
3280af22 NIS |
1966 | if (!PL_origalen) { |
1967 | s = PL_origargv[0]; | |
79072805 LW |
1968 | s += strlen(s); |
1969 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1970 | for (i = 1; i < PL_origargc; i++) { |
1971 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1972 | #ifdef OS2 |
6b88bc9c | 1973 | || PL_origargv[i] == s + 2 |
fb73857a | 1974 | #endif |
1975 | ) | |
379c4362 GS |
1976 | { |
1977 | ++s; | |
1978 | s += strlen(s); /* this one is ok too */ | |
1979 | } | |
fb73857a | 1980 | else |
1981 | break; | |
79072805 | 1982 | } |
bbce6d69 | 1983 | /* can grab env area too? */ |
3280af22 | 1984 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 1985 | #ifdef OS2 |
6b88bc9c | 1986 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 1987 | #endif |
1988 | )) { | |
66b1d557 | 1989 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 1990 | /* force copy of environment */ |
3280af22 | 1991 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
1992 | if (PL_origenviron[i] == s + 1) { |
1993 | ++s; | |
1994 | s += strlen(s); | |
1995 | } | |
fb73857a | 1996 | else |
1997 | break; | |
79072805 | 1998 | } |
3280af22 | 1999 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2000 | } |
a0d0e21e | 2001 | s = SvPV_force(sv,len); |
8990e307 | 2002 | i = len; |
3280af22 NIS |
2003 | if (i >= PL_origalen) { |
2004 | i = PL_origalen; | |
fb73857a | 2005 | /* don't allow system to limit $0 seen by script */ |
2006 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2007 | Copy(s, PL_origargv[0], i, char); |
2008 | s = PL_origargv[0]+i; | |
fb73857a | 2009 | *s = '\0'; |
79072805 LW |
2010 | } |
2011 | else { | |
3280af22 NIS |
2012 | Copy(s, PL_origargv[0], i, char); |
2013 | s = PL_origargv[0]+i; | |
79072805 | 2014 | *s++ = '\0'; |
3280af22 | 2015 | while (++i < PL_origalen) |
8990e307 | 2016 | *s++ = ' '; |
3280af22 NIS |
2017 | s = PL_origargv[0]+i; |
2018 | for (i = 1; i < PL_origargc; i++) | |
2019 | PL_origargv[i] = Nullch; | |
79072805 LW |
2020 | } |
2021 | break; | |
a863c7d1 MB |
2022 | #ifdef USE_THREADS |
2023 | case '@': | |
38a03e6e | 2024 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2025 | break; |
2026 | #endif /* USE_THREADS */ | |
79072805 LW |
2027 | } |
2028 | return 0; | |
2029 | } | |
2030 | ||
f93b4edd MB |
2031 | #ifdef USE_THREADS |
2032 | int | |
8ac85365 | 2033 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
2034 | { |
2035 | dTHR; | |
8b73bbec | 2036 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 | 2037 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd MB |
2038 | if (MgOWNER(mg)) |
2039 | croak("panic: magic_mutexfree"); | |
2040 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
2041 | COND_DESTROY(MgCONDP(mg)); | |
2042 | return 0; | |
2043 | } | |
2044 | #endif /* USE_THREADS */ | |
2045 | ||
79072805 | 2046 | I32 |
8ac85365 | 2047 | whichsig(char *sig) |
79072805 LW |
2048 | { |
2049 | register char **sigv; | |
2050 | ||
22c35a8c | 2051 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2052 | if (strEQ(sig,*sigv)) |
22c35a8c | 2053 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2054 | #ifdef SIGCLD |
2055 | if (strEQ(sig,"CHLD")) | |
2056 | return SIGCLD; | |
2057 | #endif | |
2058 | #ifdef SIGCHLD | |
2059 | if (strEQ(sig,"CLD")) | |
2060 | return SIGCHLD; | |
2061 | #endif | |
2062 | return 0; | |
2063 | } | |
2064 | ||
84902520 TB |
2065 | static SV* sig_sv; |
2066 | ||
76e3520e | 2067 | STATIC void |
8ac85365 | 2068 | unwind_handler_stack(void *p) |
84902520 | 2069 | { |
ff26ac79 | 2070 | dTHR; |
84902520 TB |
2071 | U32 flags = *(U32*)p; |
2072 | ||
2073 | if (flags & 1) | |
3280af22 | 2074 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 TB |
2075 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2076 | if (flags & 64) | |
2077 | SvREFCNT_dec(sig_sv); | |
2078 | } | |
2079 | ||
ecfc5424 | 2080 | Signal_t |
8ac85365 | 2081 | sighandler(int sig) |
79072805 LW |
2082 | { |
2083 | dSP; | |
00d579c5 | 2084 | GV *gv = Nullgv; |
a0d0e21e | 2085 | HV *st; |
3280af22 | 2086 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2087 | CV *cv = Nullcv; |
533c011a | 2088 | OP *myop = PL_op; |
84902520 | 2089 | U32 flags = 0; |
3280af22 NIS |
2090 | I32 o_save_i = PL_savestack_ix, type; |
2091 | XPV *tXpv = PL_Xpv; | |
84902520 | 2092 | |
3280af22 | 2093 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2094 | flags |= 1; |
3280af22 | 2095 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2096 | flags |= 4; |
3280af22 | 2097 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2098 | flags |= 8; |
3280af22 | 2099 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2100 | flags |= 16; |
2101 | ||
22c35a8c | 2102 | if (!PL_psig_ptr[sig]) |
ff0cee69 | 2103 | die("Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2104 | PL_sig_name[sig]); |
ff0cee69 | 2105 | |
84902520 TB |
2106 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2107 | infinity, so we fix 4 (in fact 5): */ | |
2108 | if (flags & 1) { | |
3280af22 NIS |
2109 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2110 | o_save_i = PL_savestack_ix; | |
565764a8 | 2111 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2112 | } |
2113 | if (flags & 4) | |
3280af22 | 2114 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2115 | if (flags & 8) { |
3280af22 NIS |
2116 | PL_retstack_ix++; |
2117 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2118 | } |
2119 | if (flags & 16) | |
3280af22 | 2120 | PL_scopestack_ix += 1; |
84902520 | 2121 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2122 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2123 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2124 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2125 | |
a0d0e21e | 2126 | if (!cv || !CvROOT(cv)) { |
599cee73 PM |
2127 | if (ckWARN(WARN_SIGNAL)) |
2128 | warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", | |
22c35a8c | 2129 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2130 | : ((cv && CvGV(cv)) |
2131 | ? GvENAME(CvGV(cv)) | |
2132 | : "__ANON__"))); | |
2133 | goto cleanup; | |
79072805 LW |
2134 | } |
2135 | ||
22c35a8c GS |
2136 | if(PL_psig_name[sig]) { |
2137 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2138 | flags |= 64; |
2139 | sig_sv = sv; | |
2140 | } else { | |
ff0cee69 | 2141 | sv = sv_newmortal(); |
22c35a8c | 2142 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2143 | } |
e336de0d | 2144 | |
e788e7d3 | 2145 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2146 | PUSHMARK(SP); |
79072805 | 2147 | PUSHs(sv); |
79072805 | 2148 | PUTBACK; |
a0d0e21e LW |
2149 | |
2150 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 | 2151 | |
d3acc0f7 | 2152 | POPSTACK; |
00d579c5 | 2153 | cleanup: |
84902520 | 2154 | if (flags & 1) |
3280af22 | 2155 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2156 | if (flags & 4) |
3280af22 | 2157 | PL_markstack_ptr--; |
84902520 | 2158 | if (flags & 8) |
3280af22 | 2159 | PL_retstack_ix--; |
84902520 | 2160 | if (flags & 16) |
3280af22 | 2161 | PL_scopestack_ix -= 1; |
84902520 TB |
2162 | if (flags & 64) |
2163 | SvREFCNT_dec(sv); | |
533c011a | 2164 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2165 | |
3280af22 NIS |
2166 | PL_Sv = tSv; /* Restore global temporaries. */ |
2167 | PL_Xpv = tXpv; | |
79072805 LW |
2168 | return; |
2169 | } | |
4e35701f NIS |
2170 | |
2171 |