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