Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
16 | #include "perl.h" | |
17 | ||
e6d9441c | 18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
5cd24f17 | 23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 | |
26 | # endif | |
27 | #endif | |
28 | ||
455ece5e AD |
29 | #ifdef PERL_OBJECT |
30 | # define VTBL this->*vtbl | |
31 | #else | |
32 | # define VTBL *vtbl | |
33 | static void restore_magic _((void *p)); | |
34 | #endif | |
35 | ||
c07a80fd | 36 | /* |
37 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
38 | */ | |
39 | ||
40 | struct magic_state { | |
41 | SV* mgs_sv; | |
42 | U32 mgs_flags; | |
455ece5e | 43 | I32 mgs_ss_ix; |
c07a80fd | 44 | }; |
455ece5e | 45 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
46 | |
47 | STATIC void | |
455ece5e | 48 | save_magic(I32 mgs_ix, SV *sv) |
c07a80fd | 49 | { |
46124e9e | 50 | dTHR; |
455ece5e | 51 | MGS* mgs; |
c07a80fd | 52 | assert(SvMAGICAL(sv)); |
53 | ||
455ece5e AD |
54 | SAVEDESTRUCTOR(restore_magic, (void*)mgs_ix); |
55 | ||
56 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 57 | mgs->mgs_sv = sv; |
58 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 59 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 60 | |
61 | SvMAGICAL_off(sv); | |
62 | SvREADONLY_off(sv); | |
63 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 64 | } |
65 | ||
76e3520e | 66 | STATIC void |
8ac85365 | 67 | restore_magic(void *p) |
c07a80fd | 68 | { |
46124e9e | 69 | dTHR; |
455ece5e | 70 | MGS* mgs = SSPTR((I32)p, MGS*); |
c07a80fd | 71 | SV* sv = mgs->mgs_sv; |
72 | ||
455ece5e AD |
73 | if (!sv) |
74 | return; | |
75 | ||
c07a80fd | 76 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
77 | { | |
78 | if (mgs->mgs_flags) | |
79 | SvFLAGS(sv) |= mgs->mgs_flags; | |
80 | else | |
81 | mg_magical(sv); | |
82 | if (SvGMAGICAL(sv)) | |
83 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
84 | } | |
455ece5e AD |
85 | |
86 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
87 | ||
88 | /* If we're still on top of the stack, pop us off. (That condition | |
89 | * will be satisfied if restore_magic was called explicitly, but *not* | |
90 | * if it's being called via leave_scope.) | |
91 | * The reason for doing this is that otherwise, things like sv_2cv() | |
92 | * may leave alloc gunk on the savestack, and some code | |
93 | * (e.g. sighandler) doesn't expect that... | |
94 | */ | |
95 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
96 | { | |
3c8a4456 GS |
97 | I32 popval = SSPOPINT; |
98 | assert(popval == SAVEt_DESTRUCTOR); | |
455ece5e | 99 | PL_savestack_ix -= 2; |
3c8a4456 GS |
100 | popval = SSPOPINT; |
101 | assert(popval == SAVEt_ALLOC); | |
102 | popval = SSPOPINT; | |
103 | PL_savestack_ix -= popval; | |
455ece5e AD |
104 | } |
105 | ||
c07a80fd | 106 | } |
107 | ||
8990e307 | 108 | void |
8ac85365 | 109 | mg_magical(SV *sv) |
8990e307 LW |
110 | { |
111 | MAGIC* mg; | |
112 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
113 | MGVTBL* vtbl = mg->mg_virtual; | |
114 | if (vtbl) { | |
76e3520e | 115 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
116 | SvGMAGICAL_on(sv); |
117 | if (vtbl->svt_set) | |
118 | SvSMAGICAL_on(sv); | |
76e3520e | 119 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 LW |
120 | SvRMAGICAL_on(sv); |
121 | } | |
122 | } | |
123 | } | |
124 | ||
79072805 | 125 | int |
8ac85365 | 126 | mg_get(SV *sv) |
79072805 | 127 | { |
46124e9e | 128 | dTHR; |
455ece5e | 129 | I32 mgs_ix; |
79072805 | 130 | MAGIC* mg; |
c6496cc7 | 131 | MAGIC** mgp; |
760ac839 | 132 | int mgp_valid = 0; |
463ee0b2 | 133 | |
455ece5e AD |
134 | mgs_ix = SSNEW(sizeof(MGS)); |
135 | save_magic(mgs_ix, sv); | |
463ee0b2 | 136 | |
c6496cc7 | 137 | mgp = &SvMAGIC(sv); |
138 | while ((mg = *mgp) != 0) { | |
79072805 | 139 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e GS |
140 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
141 | (VTBL->svt_get)(sv, mg); | |
c6496cc7 | 142 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
143 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
144 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 145 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 146 | } |
c6496cc7 | 147 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 148 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 149 | mgp = &mg->mg_moremagic; |
760ac839 LW |
150 | mgp_valid = 1; |
151 | } | |
152 | else | |
153 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 154 | } |
463ee0b2 | 155 | |
455ece5e | 156 | restore_magic((void*)mgs_ix); |
79072805 LW |
157 | return 0; |
158 | } | |
159 | ||
160 | int | |
8ac85365 | 161 | mg_set(SV *sv) |
79072805 | 162 | { |
46124e9e | 163 | dTHR; |
455ece5e | 164 | I32 mgs_ix; |
79072805 | 165 | MAGIC* mg; |
463ee0b2 LW |
166 | MAGIC* nextmg; |
167 | ||
455ece5e AD |
168 | mgs_ix = SSNEW(sizeof(MGS)); |
169 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
170 | |
171 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 172 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 173 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
174 | if (mg->mg_flags & MGf_GSKIP) { |
175 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 176 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 177 | } |
76e3520e GS |
178 | if (vtbl && (vtbl->svt_set != NULL)) |
179 | (VTBL->svt_set)(sv, mg); | |
79072805 | 180 | } |
463ee0b2 | 181 | |
455ece5e | 182 | restore_magic((void*)mgs_ix); |
79072805 LW |
183 | return 0; |
184 | } | |
185 | ||
186 | U32 | |
565764a8 | 187 | mg_length(SV *sv) |
79072805 LW |
188 | { |
189 | MAGIC* mg; | |
748a9306 | 190 | char *junk; |
463ee0b2 | 191 | STRLEN len; |
463ee0b2 | 192 | |
79072805 LW |
193 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
194 | MGVTBL* vtbl = mg->mg_virtual; | |
76e3520e | 195 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e | 196 | I32 mgs_ix; |
48e43a1c | 197 | |
455ece5e AD |
198 | mgs_ix = SSNEW(sizeof(MGS)); |
199 | save_magic(mgs_ix, sv); | |
a0d0e21e | 200 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e | 201 | len = (VTBL->svt_len)(sv, mg); |
455ece5e | 202 | restore_magic((void*)mgs_ix); |
85e6fe83 LW |
203 | return len; |
204 | } | |
205 | } | |
206 | ||
748a9306 | 207 | junk = SvPV(sv, len); |
463ee0b2 | 208 | return len; |
79072805 LW |
209 | } |
210 | ||
93965878 NIS |
211 | I32 |
212 | mg_size(SV *sv) | |
213 | { | |
214 | MAGIC* mg; | |
215 | I32 len; | |
216 | ||
217 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
218 | MGVTBL* vtbl = mg->mg_virtual; | |
565764a8 | 219 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e AD |
220 | I32 mgs_ix; |
221 | ||
222 | mgs_ix = SSNEW(sizeof(MGS)); | |
223 | save_magic(mgs_ix, sv); | |
93965878 | 224 | /* omit MGf_GSKIP -- not changed here */ |
565764a8 | 225 | len = (VTBL->svt_len)(sv, mg); |
455ece5e | 226 | restore_magic((void*)mgs_ix); |
93965878 NIS |
227 | return len; |
228 | } | |
229 | } | |
230 | ||
231 | switch(SvTYPE(sv)) { | |
232 | case SVt_PVAV: | |
233 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
234 | return len; | |
235 | case SVt_PVHV: | |
236 | /* FIXME */ | |
237 | default: | |
238 | croak("Size magic not implemented"); | |
239 | break; | |
240 | } | |
241 | return 0; | |
242 | } | |
243 | ||
79072805 | 244 | int |
8ac85365 | 245 | mg_clear(SV *sv) |
79072805 | 246 | { |
455ece5e | 247 | I32 mgs_ix; |
79072805 | 248 | MAGIC* mg; |
463ee0b2 | 249 | |
455ece5e AD |
250 | mgs_ix = SSNEW(sizeof(MGS)); |
251 | save_magic(mgs_ix, sv); | |
463ee0b2 | 252 | |
79072805 LW |
253 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
254 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
255 | /* omit GSKIP -- never set here */ |
256 | ||
76e3520e GS |
257 | if (vtbl && (vtbl->svt_clear != NULL)) |
258 | (VTBL->svt_clear)(sv, mg); | |
79072805 | 259 | } |
463ee0b2 | 260 | |
455ece5e | 261 | restore_magic((void*)mgs_ix); |
79072805 LW |
262 | return 0; |
263 | } | |
264 | ||
93a17b20 | 265 | MAGIC* |
8ac85365 | 266 | mg_find(SV *sv, int type) |
93a17b20 LW |
267 | { |
268 | MAGIC* mg; | |
93a17b20 LW |
269 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
270 | if (mg->mg_type == type) | |
271 | return mg; | |
272 | } | |
273 | return 0; | |
274 | } | |
275 | ||
79072805 | 276 | int |
8ac85365 | 277 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 | 278 | { |
463ee0b2 | 279 | int count = 0; |
79072805 | 280 | MAGIC* mg; |
463ee0b2 LW |
281 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
282 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 283 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 284 | count++; |
79072805 | 285 | } |
79072805 | 286 | } |
463ee0b2 | 287 | return count; |
79072805 LW |
288 | } |
289 | ||
290 | int | |
8ac85365 | 291 | mg_free(SV *sv) |
79072805 LW |
292 | { |
293 | MAGIC* mg; | |
294 | MAGIC* moremagic; | |
295 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
296 | MGVTBL* vtbl = mg->mg_virtual; | |
297 | moremagic = mg->mg_moremagic; | |
76e3520e GS |
298 | if (vtbl && (vtbl->svt_free != NULL)) |
299 | (VTBL->svt_free)(sv, mg); | |
93a17b20 | 300 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 301 | if (mg->mg_len >= 0) |
88e89b8a | 302 | Safefree(mg->mg_ptr); |
565764a8 | 303 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 304 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 305 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 306 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
307 | Safefree(mg); |
308 | } | |
309 | SvMAGIC(sv) = 0; | |
310 | return 0; | |
311 | } | |
312 | ||
313 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
314 | #include <signal.h> | |
315 | #endif | |
316 | ||
942e002e | 317 | U32 |
6cef1e77 IZ |
318 | magic_regdata_cnt(SV *sv, MAGIC *mg) |
319 | { | |
320 | dTHR; | |
321 | register char *s; | |
322 | register I32 i; | |
323 | register REGEXP *rx; | |
324 | char *t; | |
325 | ||
326 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) | |
327 | return rx->lastparen; | |
942e002e | 328 | return (U32)-1; |
6cef1e77 IZ |
329 | } |
330 | ||
331 | int | |
332 | magic_regdatum_get(SV *sv, MAGIC *mg) | |
333 | { | |
334 | dTHR; | |
335 | register I32 paren; | |
336 | register char *s; | |
337 | register I32 i; | |
338 | register REGEXP *rx; | |
339 | char *t; | |
340 | ||
341 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
342 | paren = mg->mg_len; | |
343 | if (paren < 0) | |
344 | return 0; | |
345 | if (paren <= rx->nparens && | |
346 | (s = rx->startp[paren]) && | |
347 | (t = rx->endp[paren])) | |
348 | { | |
349 | if (mg->mg_obj) /* @+ */ | |
350 | i = t - rx->subbase; | |
351 | else /* @- */ | |
352 | i = s - rx->subbase; | |
353 | sv_setiv(sv,i); | |
354 | } | |
355 | } | |
356 | return 0; | |
357 | } | |
358 | ||
93a17b20 | 359 | U32 |
8ac85365 | 360 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 361 | { |
a863c7d1 | 362 | dTHR; |
93a17b20 LW |
363 | register I32 paren; |
364 | register char *s; | |
365 | register I32 i; | |
d9f97599 | 366 | register REGEXP *rx; |
748a9306 | 367 | char *t; |
93a17b20 LW |
368 | |
369 | switch (*mg->mg_ptr) { | |
370 | case '1': case '2': case '3': case '4': | |
371 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 372 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
93a17b20 LW |
373 | paren = atoi(mg->mg_ptr); |
374 | getparen: | |
d9f97599 GS |
375 | if (paren <= rx->nparens && |
376 | (s = rx->startp[paren]) && | |
377 | (t = rx->endp[paren])) | |
bbce6d69 | 378 | { |
748a9306 | 379 | i = t - s; |
71be2cbc | 380 | if (i >= 0) |
93a17b20 | 381 | return i; |
93a17b20 | 382 | } |
93a17b20 | 383 | } |
748a9306 | 384 | return 0; |
93a17b20 | 385 | case '+': |
3280af22 | 386 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 387 | paren = rx->lastparen; |
13f57bf8 CS |
388 | if (paren) |
389 | goto getparen; | |
93a17b20 | 390 | } |
748a9306 | 391 | return 0; |
93a17b20 | 392 | case '`': |
3280af22 | 393 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
394 | if ((s = rx->subbeg) && rx->startp[0]) { |
395 | i = rx->startp[0] - s; | |
71be2cbc | 396 | if (i >= 0) |
93a17b20 | 397 | return i; |
93a17b20 | 398 | } |
93a17b20 | 399 | } |
748a9306 | 400 | return 0; |
93a17b20 | 401 | case '\'': |
3280af22 | 402 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
403 | if (rx->subend && (s = rx->endp[0])) { |
404 | i = rx->subend - s; | |
13f57bf8 | 405 | if (i >= 0) |
5cd24f17 | 406 | return i; |
93a17b20 | 407 | } |
93a17b20 | 408 | } |
748a9306 | 409 | return 0; |
93a17b20 | 410 | case ',': |
3280af22 | 411 | return (STRLEN)PL_ofslen; |
93a17b20 | 412 | case '\\': |
3280af22 | 413 | return (STRLEN)PL_orslen; |
93a17b20 LW |
414 | } |
415 | magic_get(sv,mg); | |
416 | if (!SvPOK(sv) && SvNIOK(sv)) | |
3280af22 | 417 | sv_2pv(sv, &PL_na); |
93a17b20 LW |
418 | if (SvPOK(sv)) |
419 | return SvCUR(sv); | |
420 | return 0; | |
421 | } | |
422 | ||
599cee73 PM |
423 | #if 0 |
424 | static char * | |
425 | printW(sv) | |
426 | SV * sv ; | |
427 | { | |
428 | #if 1 | |
429 | return "" ; | |
430 | ||
431 | #else | |
432 | int i ; | |
433 | static char buffer[50] ; | |
434 | char buf1[20] ; | |
435 | char * p ; | |
436 | ||
437 | ||
438 | sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ; | |
439 | p = SvPVX(sv) ; | |
440 | for (i = 0; i < SvCUR(sv) ; ++ i) { | |
441 | sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ; | |
442 | strcat(buffer, buf1) ; | |
443 | } | |
444 | ||
445 | return buffer ; | |
446 | ||
447 | #endif | |
448 | } | |
449 | #endif | |
450 | ||
79072805 | 451 | int |
8ac85365 | 452 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 453 | { |
a863c7d1 | 454 | dTHR; |
79072805 LW |
455 | register I32 paren; |
456 | register char *s; | |
457 | register I32 i; | |
d9f97599 | 458 | register REGEXP *rx; |
748a9306 | 459 | char *t; |
79072805 LW |
460 | |
461 | switch (*mg->mg_ptr) { | |
748a9306 | 462 | case '\001': /* ^A */ |
3280af22 | 463 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 464 | break; |
599cee73 PM |
465 | case '\002': /* ^B */ |
466 | /* printf("magic_get $^B: ") ; */ | |
e24b16f9 | 467 | if (PL_curcop->cop_warnings == WARN_NONE) |
599cee73 PM |
468 | /* printf("WARN_NONE\n"), */ |
469 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
e24b16f9 | 470 | else if (PL_curcop->cop_warnings == WARN_ALL) |
599cee73 PM |
471 | /* printf("WARN_ALL\n"), */ |
472 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
473 | else | |
e24b16f9 GS |
474 | /* printf("some %s\n", printW(PL_curcop->cop_warnings)), */ |
475 | sv_setsv(sv, PL_curcop->cop_warnings); | |
599cee73 | 476 | break; |
79072805 | 477 | case '\004': /* ^D */ |
3280af22 | 478 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 | 479 | break; |
28f23441 | 480 | case '\005': /* ^E */ |
481 | #ifdef VMS | |
482 | { | |
483 | # include <descrip.h> | |
484 | # include <starlet.h> | |
485 | char msg[255]; | |
486 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 487 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 488 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
489 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
490 | else | |
491 | sv_setpv(sv,""); | |
492 | } | |
493 | #else | |
88e89b8a | 494 | #ifdef OS2 |
fb73857a | 495 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
496 | sv_setnv(sv, (double)errno); | |
497 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
498 | } else { | |
017f25f1 IZ |
499 | if (errno != errno_isOS2) { |
500 | int tmp = _syserrno(); | |
501 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
502 | Perl_rc = tmp; | |
503 | } | |
fb73857a | 504 | sv_setnv(sv, (double)Perl_rc); |
505 | sv_setpv(sv, os2error(Perl_rc)); | |
506 | } | |
88e89b8a | 507 | #else |
22fae026 TM |
508 | #ifdef WIN32 |
509 | { | |
510 | DWORD dwErr = GetLastError(); | |
511 | sv_setnv(sv, (double)dwErr); | |
512 | if (dwErr) | |
76e3520e GS |
513 | { |
514 | #ifdef PERL_OBJECT | |
515 | char *sMsg; | |
516 | DWORD dwLen; | |
517 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); | |
518 | sv_setpvn(sv, sMsg, dwLen); | |
519 | PerlProc_FreeBuf(sMsg); | |
520 | #else | |
22fae026 | 521 | win32_str_os_error(sv, dwErr); |
76e3520e GS |
522 | #endif |
523 | } | |
22fae026 TM |
524 | else |
525 | sv_setpv(sv, ""); | |
526 | SetLastError(dwErr); | |
527 | } | |
528 | #else | |
946ec16e | 529 | sv_setnv(sv, (double)errno); |
28f23441 | 530 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
531 | #endif | |
88e89b8a | 532 | #endif |
22fae026 | 533 | #endif |
946ec16e | 534 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 535 | break; |
79072805 | 536 | case '\006': /* ^F */ |
3280af22 | 537 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 538 | break; |
a0d0e21e | 539 | case '\010': /* ^H */ |
3280af22 | 540 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 541 | break; |
9d116dd7 | 542 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
543 | if (PL_inplace) |
544 | sv_setpv(sv, PL_inplace); | |
79072805 | 545 | else |
3280af22 | 546 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 547 | break; |
28f23441 | 548 | case '\017': /* ^O */ |
3280af22 | 549 | sv_setpv(sv, PL_osname); |
28f23441 | 550 | break; |
79072805 | 551 | case '\020': /* ^P */ |
3280af22 | 552 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 553 | break; |
fb73857a | 554 | case '\023': /* ^S */ |
d58bf5aa MB |
555 | { |
556 | dTHR; | |
3280af22 | 557 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 558 | SvOK_off(sv); |
3280af22 | 559 | else if (PL_in_eval) |
d58bf5aa MB |
560 | sv_setiv(sv, 1); |
561 | else | |
562 | sv_setiv(sv, 0); | |
563 | } | |
fb73857a | 564 | break; |
79072805 | 565 | case '\024': /* ^T */ |
88e89b8a | 566 | #ifdef BIG_TIME |
6b88bc9c | 567 | sv_setnv(sv, PL_basetime); |
88e89b8a | 568 | #else |
3280af22 | 569 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 570 | #endif |
79072805 LW |
571 | break; |
572 | case '\027': /* ^W */ | |
599cee73 | 573 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 LW |
574 | break; |
575 | case '1': case '2': case '3': case '4': | |
576 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 577 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
a863c7d1 MB |
578 | /* |
579 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
580 | * XXX Does the new way break anything? | |
581 | */ | |
582 | paren = atoi(mg->mg_ptr); | |
79072805 | 583 | getparen: |
d9f97599 GS |
584 | if (paren <= rx->nparens && |
585 | (s = rx->startp[paren]) && | |
586 | (t = rx->endp[paren])) | |
bbce6d69 | 587 | { |
748a9306 | 588 | i = t - s; |
13f57bf8 | 589 | getrx: |
748a9306 | 590 | if (i >= 0) { |
13f57bf8 | 591 | bool was_tainted; |
3280af22 NIS |
592 | if (PL_tainting) { |
593 | was_tainted = PL_tainted; | |
594 | PL_tainted = FALSE; | |
13f57bf8 | 595 | } |
79072805 | 596 | sv_setpvn(sv,s,i); |
3280af22 NIS |
597 | if (PL_tainting) |
598 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
599 | break; |
600 | } | |
79072805 | 601 | } |
79072805 | 602 | } |
3280af22 | 603 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
604 | break; |
605 | case '+': | |
3280af22 | 606 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 607 | paren = rx->lastparen; |
a0d0e21e LW |
608 | if (paren) |
609 | goto getparen; | |
79072805 | 610 | } |
3280af22 | 611 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
612 | break; |
613 | case '`': | |
3280af22 | 614 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
615 | if ((s = rx->subbeg) && rx->startp[0]) { |
616 | i = rx->startp[0] - s; | |
13f57bf8 | 617 | goto getrx; |
79072805 | 618 | } |
79072805 | 619 | } |
3280af22 | 620 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
621 | break; |
622 | case '\'': | |
3280af22 | 623 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
624 | if (rx->subend && (s = rx->endp[0])) { |
625 | i = rx->subend - s; | |
13f57bf8 | 626 | goto getrx; |
79072805 | 627 | } |
79072805 | 628 | } |
3280af22 | 629 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
630 | break; |
631 | case '.': | |
632 | #ifndef lint | |
3280af22 NIS |
633 | if (GvIO(PL_last_in_gv)) { |
634 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
635 | } |
636 | #endif | |
637 | break; | |
638 | case '?': | |
809a5acc | 639 | { |
809a5acc | 640 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 641 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
642 | LvTARGOFF(sv) = PL_statusvalue; |
643 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 644 | #endif |
809a5acc | 645 | } |
79072805 LW |
646 | break; |
647 | case '^': | |
3280af22 | 648 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
649 | if (s) |
650 | sv_setpv(sv,s); | |
651 | else { | |
3280af22 | 652 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
653 | sv_catpv(sv,"_TOP"); |
654 | } | |
655 | break; | |
656 | case '~': | |
3280af22 | 657 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 658 | if (!s) |
3280af22 | 659 | s = GvENAME(PL_defoutgv); |
79072805 LW |
660 | sv_setpv(sv,s); |
661 | break; | |
662 | #ifndef lint | |
663 | case '=': | |
3280af22 | 664 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
665 | break; |
666 | case '-': | |
3280af22 | 667 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
668 | break; |
669 | case '%': | |
3280af22 | 670 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
671 | break; |
672 | #endif | |
673 | case ':': | |
674 | break; | |
675 | case '/': | |
676 | break; | |
677 | case '[': | |
3280af22 | 678 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
679 | break; |
680 | case '|': | |
3280af22 | 681 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
682 | break; |
683 | case ',': | |
3280af22 | 684 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
685 | break; |
686 | case '\\': | |
3280af22 | 687 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
688 | break; |
689 | case '#': | |
3280af22 | 690 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
691 | break; |
692 | case '!': | |
a5f75d66 | 693 | #ifdef VMS |
946ec16e | 694 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 695 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 696 | #else |
88e89b8a | 697 | { |
698 | int saveerrno = errno; | |
946ec16e | 699 | sv_setnv(sv, (double)errno); |
88e89b8a | 700 | #ifdef OS2 |
701 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
702 | else | |
a5f75d66 | 703 | #endif |
2304df62 | 704 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 705 | errno = saveerrno; |
706 | } | |
707 | #endif | |
946ec16e | 708 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
709 | break; |
710 | case '<': | |
3280af22 | 711 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
712 | break; |
713 | case '>': | |
3280af22 | 714 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
715 | break; |
716 | case '(': | |
3280af22 NIS |
717 | sv_setiv(sv, (IV)PL_gid); |
718 | sv_setpvf(sv, "%Vd", (IV)PL_gid); | |
79072805 LW |
719 | goto add_groups; |
720 | case ')': | |
3280af22 NIS |
721 | sv_setiv(sv, (IV)PL_egid); |
722 | sv_setpvf(sv, "%Vd", (IV)PL_egid); | |
79072805 | 723 | add_groups: |
79072805 | 724 | #ifdef HAS_GETGROUPS |
79072805 | 725 | { |
a0d0e21e | 726 | Groups_t gary[NGROUPS]; |
79072805 | 727 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 728 | while (--i >= 0) |
fc36a67e | 729 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
730 | } |
731 | #endif | |
29355cf7 | 732 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
733 | break; |
734 | case '*': | |
735 | break; | |
736 | case '0': | |
737 | break; | |
a863c7d1 MB |
738 | #ifdef USE_THREADS |
739 | case '@': | |
38a03e6e | 740 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
741 | break; |
742 | #endif /* USE_THREADS */ | |
79072805 | 743 | } |
a0d0e21e | 744 | return 0; |
79072805 LW |
745 | } |
746 | ||
747 | int | |
8ac85365 | 748 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
749 | { |
750 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
751 | ||
752 | if (uf && uf->uf_val) | |
753 | (*uf->uf_val)(uf->uf_index, sv); | |
754 | return 0; | |
755 | } | |
756 | ||
757 | int | |
8ac85365 | 758 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
759 | { |
760 | register char *s; | |
88e89b8a | 761 | char *ptr; |
5aabfad6 | 762 | STRLEN len, klen; |
a0d0e21e | 763 | I32 i; |
1e422769 | 764 | |
a0d0e21e | 765 | s = SvPV(sv,len); |
5aabfad6 | 766 | ptr = MgPV(mg,klen); |
88e89b8a | 767 | my_setenv(ptr, s); |
1e422769 | 768 | |
a0d0e21e LW |
769 | #ifdef DYNAMIC_ENV_FETCH |
770 | /* We just undefd an environment var. Is a replacement */ | |
771 | /* waiting in the wings? */ | |
772 | if (!len) { | |
5aabfad6 | 773 | SV **valp; |
6b88bc9c | 774 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 775 | s = SvPV(*valp, len); |
a0d0e21e LW |
776 | } |
777 | #endif | |
1e422769 | 778 | |
39e571d4 | 779 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
780 | /* And you'll never guess what the dog had */ |
781 | /* in its mouth... */ | |
3280af22 | 782 | if (PL_tainting) { |
1e422769 | 783 | MgTAINTEDDIR_off(mg); |
784 | #ifdef VMS | |
5aabfad6 | 785 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 786 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
787 | struct stat sbuf; | |
788 | int i = 0, j = 0; | |
789 | ||
790 | do { /* DCL$PATH may be a search list */ | |
791 | while (1) { /* as may dev portion of any element */ | |
792 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
793 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
794 | cando_by_name(S_IWUSR,0,elt) ) { | |
795 | MgTAINTEDDIR_on(mg); | |
796 | return 0; | |
797 | } | |
798 | } | |
799 | if ((cp = strchr(elt, ':')) != Nullch) | |
800 | *cp = '\0'; | |
801 | if (my_trnlnm(elt, eltbuf, j++)) | |
802 | elt = eltbuf; | |
803 | else | |
804 | break; | |
805 | } | |
806 | j = 0; | |
807 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
808 | } | |
809 | #endif /* VMS */ | |
5aabfad6 | 810 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 811 | char *strend = s + len; |
463ee0b2 LW |
812 | |
813 | while (s < strend) { | |
96827780 | 814 | char tmpbuf[256]; |
1e422769 | 815 | struct stat st; |
96827780 | 816 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 817 | s, strend, ':', &i); |
463ee0b2 | 818 | s++; |
96827780 MB |
819 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
820 | || *tmpbuf != '/' | |
c6ed36e1 | 821 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 822 | MgTAINTEDDIR_on(mg); |
1e422769 | 823 | return 0; |
824 | } | |
463ee0b2 | 825 | } |
79072805 LW |
826 | } |
827 | } | |
39e571d4 | 828 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 829 | |
79072805 LW |
830 | return 0; |
831 | } | |
832 | ||
833 | int | |
8ac85365 | 834 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 835 | { |
3280af22 | 836 | my_setenv(MgPV(mg,PL_na),Nullch); |
85e6fe83 LW |
837 | return 0; |
838 | } | |
839 | ||
88e89b8a | 840 | int |
8ac85365 | 841 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 842 | { |
843 | #if defined(VMS) | |
844 | die("Can't make list assignment to %%ENV on this system"); | |
845 | #else | |
d58bf5aa | 846 | dTHR; |
3280af22 | 847 | if (PL_localizing) { |
fb73857a | 848 | HE* entry; |
849 | magic_clear_all_env(sv,mg); | |
850 | hv_iterinit((HV*)sv); | |
851 | while (entry = hv_iternext((HV*)sv)) { | |
852 | I32 keylen; | |
853 | my_setenv(hv_iterkey(entry, &keylen), | |
3280af22 | 854 | SvPV(hv_iterval((HV*)sv, entry), PL_na)); |
fb73857a | 855 | } |
856 | } | |
857 | #endif | |
858 | return 0; | |
859 | } | |
860 | ||
861 | int | |
8ac85365 | 862 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 863 | { |
3e3baf6d TB |
864 | #if defined(VMS) |
865 | die("Can't make list assignment to %%ENV on this system"); | |
866 | #else | |
867 | #ifdef WIN32 | |
868 | char *envv = GetEnvironmentStrings(); | |
869 | char *cur = envv; | |
870 | STRLEN len; | |
871 | while (*cur) { | |
872 | char *end = strchr(cur,'='); | |
873 | if (end && end != cur) { | |
874 | *end = '\0'; | |
875 | my_setenv(cur,Nullch); | |
876 | *end = '='; | |
877 | cur += strlen(end+1)+1; | |
878 | } | |
879 | else if ((len = strlen(cur))) | |
880 | cur += len+1; | |
881 | } | |
882 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
883 | #else |
884 | I32 i; | |
885 | ||
3280af22 | 886 | if (environ == PL_origenviron) |
66b1d557 HM |
887 | New(901, environ, 1, char*); |
888 | else | |
889 | for (i = 0; environ[i]; i++) | |
890 | Safefree(environ[i]); | |
891 | environ[0] = Nullch; | |
892 | ||
66b1d557 | 893 | #endif |
3e3baf6d TB |
894 | #endif |
895 | return 0; | |
66b1d557 HM |
896 | } |
897 | ||
898 | int | |
8ac85365 | 899 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 900 | { |
901 | I32 i; | |
902 | /* Are we fetching a signal entry? */ | |
3280af22 | 903 | i = whichsig(MgPV(mg,PL_na)); |
88e89b8a | 904 | if (i) { |
905 | if(psig_ptr[i]) | |
906 | sv_setsv(sv,psig_ptr[i]); | |
907 | else { | |
ff68c719 | 908 | Sighandler_t sigstate = rsignal_state(i); |
909 | ||
88e89b8a | 910 | /* cache state so we don't fetch it again */ |
ff68c719 | 911 | if(sigstate == SIG_IGN) |
88e89b8a | 912 | sv_setpv(sv,"IGNORE"); |
913 | else | |
3280af22 | 914 | sv_setsv(sv,&PL_sv_undef); |
88e89b8a | 915 | psig_ptr[i] = SvREFCNT_inc(sv); |
916 | SvTEMP_off(sv); | |
917 | } | |
918 | } | |
919 | return 0; | |
920 | } | |
921 | int | |
8ac85365 | 922 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 923 | { |
924 | I32 i; | |
925 | /* Are we clearing a signal entry? */ | |
3280af22 | 926 | i = whichsig(MgPV(mg,PL_na)); |
88e89b8a | 927 | if (i) { |
928 | if(psig_ptr[i]) { | |
929 | SvREFCNT_dec(psig_ptr[i]); | |
930 | psig_ptr[i]=0; | |
931 | } | |
932 | if(psig_name[i]) { | |
933 | SvREFCNT_dec(psig_name[i]); | |
934 | psig_name[i]=0; | |
935 | } | |
936 | } | |
937 | return 0; | |
938 | } | |
3d37d572 | 939 | |
85e6fe83 | 940 | int |
8ac85365 | 941 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 942 | { |
11343788 | 943 | dTHR; |
79072805 LW |
944 | register char *s; |
945 | I32 i; | |
748a9306 | 946 | SV** svp; |
a0d0e21e | 947 | |
3280af22 | 948 | s = MgPV(mg,PL_na); |
748a9306 LW |
949 | if (*s == '_') { |
950 | if (strEQ(s,"__DIE__")) | |
3280af22 | 951 | svp = &PL_diehook; |
748a9306 | 952 | else if (strEQ(s,"__WARN__")) |
3280af22 | 953 | svp = &PL_warnhook; |
748a9306 | 954 | else if (strEQ(s,"__PARSE__")) |
3280af22 | 955 | svp = &PL_parsehook; |
748a9306 LW |
956 | else |
957 | croak("No such hook: %s", s); | |
958 | i = 0; | |
4633a7c4 LW |
959 | if (*svp) { |
960 | SvREFCNT_dec(*svp); | |
961 | *svp = 0; | |
962 | } | |
748a9306 LW |
963 | } |
964 | else { | |
965 | i = whichsig(s); /* ...no, a brick */ | |
966 | if (!i) { | |
599cee73 PM |
967 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
968 | warner(WARN_SIGNAL, "No such signal: SIG%s", s); | |
748a9306 LW |
969 | return 0; |
970 | } | |
ff0cee69 | 971 | SvREFCNT_dec(psig_name[i]); |
972 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 973 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 974 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 975 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 976 | SvREADONLY_on(psig_name[i]); |
748a9306 | 977 | } |
a0d0e21e | 978 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 979 | if (i) |
3280af22 | 980 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
981 | else |
982 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
983 | return 0; |
984 | } | |
3280af22 | 985 | s = SvPV_force(sv,PL_na); |
748a9306 LW |
986 | if (strEQ(s,"IGNORE")) { |
987 | if (i) | |
ff68c719 | 988 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
989 | else |
990 | *svp = 0; | |
991 | } | |
992 | else if (strEQ(s,"DEFAULT") || !*s) { | |
993 | if (i) | |
ff68c719 | 994 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
995 | else |
996 | *svp = 0; | |
997 | } | |
79072805 | 998 | else { |
5aabfad6 | 999 | /* |
1000 | * We should warn if HINT_STRICT_REFS, but without | |
1001 | * access to a known hint bit in a known OP, we can't | |
1002 | * tell whether HINT_STRICT_REFS is in force or not. | |
1003 | */ | |
46fc3d4c | 1004 | if (!strchr(s,':') && !strchr(s,'\'')) |
1005 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 1006 | if (i) |
3280af22 | 1007 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1008 | else |
1009 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1010 | } |
1011 | return 0; | |
1012 | } | |
1013 | ||
1014 | int | |
8ac85365 | 1015 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 1016 | { |
3280af22 | 1017 | PL_sub_generation++; |
463ee0b2 LW |
1018 | return 0; |
1019 | } | |
1020 | ||
a0d0e21e LW |
1021 | #ifdef OVERLOAD |
1022 | ||
463ee0b2 | 1023 | int |
8ac85365 | 1024 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 1025 | { |
a0d0e21e | 1026 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1027 | PL_amagic_generation++; |
463ee0b2 | 1028 | |
a0d0e21e LW |
1029 | return 0; |
1030 | } | |
1031 | #endif /* OVERLOAD */ | |
463ee0b2 | 1032 | |
946ec16e | 1033 | int |
6ff81951 GS |
1034 | magic_getnkeys(SV *sv, MAGIC *mg) |
1035 | { | |
1036 | HV *hv = (HV*)LvTARG(sv); | |
1037 | HE *entry; | |
1038 | I32 i = 0; | |
1039 | ||
1040 | if (hv) { | |
1041 | (void) hv_iterinit(hv); | |
1042 | if (!SvRMAGICAL(hv) || !mg_find((SV*)hv,'P')) | |
1043 | i = HvKEYS(hv); | |
1044 | else { | |
1045 | /*SUPPRESS 560*/ | |
1046 | while (entry = hv_iternext(hv)) { | |
1047 | i++; | |
1048 | } | |
1049 | } | |
1050 | } | |
1051 | ||
1052 | sv_setiv(sv, (IV)i); | |
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | int | |
8ac85365 | 1057 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 1058 | { |
1059 | if (LvTARG(sv)) { | |
1060 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1061 | } |
1062 | return 0; | |
93965878 | 1063 | } |
946ec16e | 1064 | |
e336de0d | 1065 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1066 | STATIC int |
93965878 | 1067 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1068 | { |
1069 | dSP; | |
463ee0b2 | 1070 | |
924508f0 GS |
1071 | PUSHMARK(SP); |
1072 | EXTEND(SP, n); | |
a0d0e21e | 1073 | PUSHs(mg->mg_obj); |
93965878 NIS |
1074 | if (n > 1) { |
1075 | if (mg->mg_ptr) { | |
565764a8 DL |
1076 | if (mg->mg_len >= 0) |
1077 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
1078 | else if (mg->mg_len == HEf_SVKEY) | |
93965878 NIS |
1079 | PUSHs((SV*)mg->mg_ptr); |
1080 | } | |
1081 | else if (mg->mg_type == 'p') { | |
565764a8 | 1082 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1083 | } |
1084 | } | |
1085 | if (n > 2) { | |
1086 | PUSHs(val); | |
88e89b8a | 1087 | } |
463ee0b2 LW |
1088 | PUTBACK; |
1089 | ||
93965878 | 1090 | return perl_call_method(meth, flags); |
946ec16e | 1091 | } |
1092 | ||
76e3520e | 1093 | STATIC int |
8ac85365 | 1094 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1095 | { |
1096 | dSP; | |
463ee0b2 | 1097 | |
a0d0e21e LW |
1098 | ENTER; |
1099 | SAVETMPS; | |
e788e7d3 | 1100 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1101 | |
93965878 | 1102 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1103 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1104 | } |
463ee0b2 | 1105 | |
d3acc0f7 | 1106 | POPSTACK; |
a0d0e21e LW |
1107 | FREETMPS; |
1108 | LEAVE; | |
1109 | return 0; | |
1110 | } | |
463ee0b2 | 1111 | |
a0d0e21e | 1112 | int |
8ac85365 | 1113 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1114 | { |
1115 | magic_methpack(sv,mg,"FETCH"); | |
1116 | if (mg->mg_ptr) | |
1117 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1118 | return 0; |
1119 | } | |
1120 | ||
1121 | int | |
8ac85365 | 1122 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d GS |
1123 | { |
1124 | dSP; | |
a60c0954 | 1125 | ENTER; |
e788e7d3 | 1126 | PUSHSTACKi(PERLSI_MAGIC); |
93965878 | 1127 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1128 | POPSTACK; |
a60c0954 | 1129 | LEAVE; |
463ee0b2 LW |
1130 | return 0; |
1131 | } | |
1132 | ||
1133 | int | |
8ac85365 | 1134 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1135 | { |
a0d0e21e LW |
1136 | return magic_methpack(sv,mg,"DELETE"); |
1137 | } | |
463ee0b2 | 1138 | |
93965878 NIS |
1139 | |
1140 | U32 | |
1141 | magic_sizepack(SV *sv, MAGIC *mg) | |
1142 | { | |
e336de0d | 1143 | dSP; |
93965878 NIS |
1144 | U32 retval = 0; |
1145 | ||
1146 | ENTER; | |
1147 | SAVETMPS; | |
e788e7d3 | 1148 | PUSHSTACKi(PERLSI_MAGIC); |
93965878 | 1149 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1150 | sv = *PL_stack_sp--; |
a60c0954 | 1151 | retval = (U32) SvIV(sv)-1; |
93965878 | 1152 | } |
d3acc0f7 | 1153 | POPSTACK; |
93965878 NIS |
1154 | FREETMPS; |
1155 | LEAVE; | |
1156 | return retval; | |
1157 | } | |
1158 | ||
8ac85365 | 1159 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1160 | { |
1161 | dSP; | |
463ee0b2 | 1162 | |
e336de0d | 1163 | ENTER; |
e788e7d3 | 1164 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1165 | PUSHMARK(SP); |
a0d0e21e | 1166 | XPUSHs(mg->mg_obj); |
463ee0b2 | 1167 | PUTBACK; |
a0d0e21e | 1168 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1169 | POPSTACK; |
a60c0954 | 1170 | LEAVE; |
463ee0b2 LW |
1171 | return 0; |
1172 | } | |
1173 | ||
1174 | int | |
8ac85365 | 1175 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1176 | { |
463ee0b2 | 1177 | dSP; |
a0d0e21e | 1178 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1179 | |
1180 | ENTER; | |
a0d0e21e | 1181 | SAVETMPS; |
e788e7d3 | 1182 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1183 | PUSHMARK(SP); |
1184 | EXTEND(SP, 2); | |
a0d0e21e | 1185 | PUSHs(mg->mg_obj); |
463ee0b2 LW |
1186 | if (SvOK(key)) |
1187 | PUSHs(key); | |
1188 | PUTBACK; | |
1189 | ||
a0d0e21e | 1190 | if (perl_call_method(meth, G_SCALAR)) |
3280af22 | 1191 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1192 | |
d3acc0f7 | 1193 | POPSTACK; |
a0d0e21e LW |
1194 | FREETMPS; |
1195 | LEAVE; | |
79072805 LW |
1196 | return 0; |
1197 | } | |
1198 | ||
1199 | int | |
8ac85365 | 1200 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1201 | { |
1202 | return magic_methpack(sv,mg,"EXISTS"); | |
1203 | } | |
1204 | ||
1205 | int | |
8ac85365 | 1206 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1207 | { |
11343788 | 1208 | dTHR; |
79072805 LW |
1209 | OP *o; |
1210 | I32 i; | |
1211 | GV* gv; | |
1212 | SV** svp; | |
1213 | ||
3280af22 | 1214 | gv = PL_DBline; |
79072805 | 1215 | i = SvTRUE(sv); |
188ea221 | 1216 | svp = av_fetch(GvAV(gv), |
3280af22 | 1217 | atoi(MgPV(mg,PL_na)), FALSE); |
8990e307 | 1218 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1219 | o->op_private = i; |
79072805 LW |
1220 | else |
1221 | warn("Can't break at that line\n"); | |
1222 | return 0; | |
1223 | } | |
1224 | ||
1225 | int | |
8ac85365 | 1226 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1227 | { |
0f15f207 | 1228 | dTHR; |
3280af22 | 1229 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1230 | return 0; |
1231 | } | |
1232 | ||
1233 | int | |
8ac85365 | 1234 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1235 | { |
0f15f207 | 1236 | dTHR; |
3280af22 | 1237 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1238 | return 0; |
1239 | } | |
1240 | ||
1241 | int | |
8ac85365 | 1242 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1243 | { |
1244 | SV* lsv = LvTARG(sv); | |
1245 | ||
1246 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1247 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1248 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1249 | dTHR; |
a0ed51b3 LW |
1250 | I32 i = mg->mg_len; |
1251 | if (IN_UTF8) | |
1252 | sv_pos_b2u(lsv, &i); | |
1253 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1254 | return 0; |
1255 | } | |
1256 | } | |
1257 | (void)SvOK_off(sv); | |
1258 | return 0; | |
1259 | } | |
1260 | ||
1261 | int | |
8ac85365 | 1262 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1263 | { |
1264 | SV* lsv = LvTARG(sv); | |
1265 | SSize_t pos; | |
1266 | STRLEN len; | |
a0ed51b3 | 1267 | STRLEN ulen; |
c485e607 | 1268 | dTHR; |
a0d0e21e LW |
1269 | |
1270 | mg = 0; | |
1271 | ||
1272 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1273 | mg = mg_find(lsv, 'g'); | |
1274 | if (!mg) { | |
1275 | if (!SvOK(sv)) | |
1276 | return 0; | |
1277 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1278 | mg = mg_find(lsv, 'g'); | |
1279 | } | |
1280 | else if (!SvOK(sv)) { | |
565764a8 | 1281 | mg->mg_len = -1; |
a0d0e21e LW |
1282 | return 0; |
1283 | } | |
1284 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1285 | ||
c485e607 | 1286 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 LW |
1287 | |
1288 | if (IN_UTF8) { | |
1289 | ulen = sv_len_utf8(lsv); | |
1290 | if (ulen) | |
1291 | len = ulen; | |
1292 | else | |
1293 | ulen = 0; | |
1294 | } | |
1295 | ||
a0d0e21e LW |
1296 | if (pos < 0) { |
1297 | pos += len; | |
1298 | if (pos < 0) | |
1299 | pos = 0; | |
1300 | } | |
1301 | else if (pos > len) | |
1302 | pos = len; | |
a0ed51b3 LW |
1303 | |
1304 | if (ulen) { | |
1305 | I32 p = pos; | |
1306 | sv_pos_u2b(lsv, &p, 0); | |
1307 | pos = p; | |
1308 | } | |
1309 | ||
565764a8 | 1310 | mg->mg_len = pos; |
71be2cbc | 1311 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1312 | |
79072805 LW |
1313 | return 0; |
1314 | } | |
1315 | ||
1316 | int | |
8ac85365 | 1317 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1318 | { |
8646b087 | 1319 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1320 | SvFAKE_off(sv); | |
946ec16e | 1321 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1322 | SvFAKE_on(sv); |
1323 | } | |
1324 | else | |
946ec16e | 1325 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1326 | return 0; |
1327 | } | |
1328 | ||
1329 | int | |
8ac85365 | 1330 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1331 | { |
1332 | register char *s; | |
1333 | GV* gv; | |
1334 | ||
1335 | if (!SvOK(sv)) | |
1336 | return 0; | |
3280af22 | 1337 | s = SvPV(sv, PL_na); |
79072805 LW |
1338 | if (*s == '*' && s[1]) |
1339 | s++; | |
85e6fe83 | 1340 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1341 | if (sv == (SV*)gv) |
1342 | return 0; | |
1343 | if (GvGP(sv)) | |
88e89b8a | 1344 | gp_free((GV*)sv); |
79072805 | 1345 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1346 | return 0; |
1347 | } | |
1348 | ||
1349 | int | |
6ff81951 GS |
1350 | magic_getsubstr(SV *sv, MAGIC *mg) |
1351 | { | |
1352 | STRLEN len; | |
1353 | SV *lsv = LvTARG(sv); | |
1354 | char *tmps = SvPV(lsv,len); | |
1355 | I32 offs = LvTARGOFF(sv); | |
1356 | I32 rem = LvTARGLEN(sv); | |
1357 | ||
1358 | if (offs > len) | |
1359 | offs = len; | |
1360 | if (rem + offs > len) | |
1361 | rem = len - offs; | |
1362 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1363 | return 0; | |
1364 | } | |
1365 | ||
1366 | int | |
8ac85365 | 1367 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1368 | { |
8990e307 LW |
1369 | STRLEN len; |
1370 | char *tmps = SvPV(sv,len); | |
1371 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1372 | return 0; |
1373 | } | |
1374 | ||
1375 | int | |
8ac85365 | 1376 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1377 | { |
a863c7d1 | 1378 | dTHR; |
565764a8 DL |
1379 | TAINT_IF((mg->mg_len & 1) || |
1380 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1381 | return 0; |
1382 | } | |
1383 | ||
1384 | int | |
8ac85365 | 1385 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1386 | { |
11343788 | 1387 | dTHR; |
3280af22 NIS |
1388 | if (PL_localizing) { |
1389 | if (PL_localizing == 1) | |
565764a8 | 1390 | mg->mg_len <<= 1; |
748a9306 | 1391 | else |
565764a8 | 1392 | mg->mg_len >>= 1; |
a0d0e21e | 1393 | } |
3280af22 | 1394 | else if (PL_tainted) |
565764a8 | 1395 | mg->mg_len |= 1; |
748a9306 | 1396 | else |
565764a8 | 1397 | mg->mg_len &= ~1; |
463ee0b2 LW |
1398 | return 0; |
1399 | } | |
1400 | ||
1401 | int | |
6ff81951 GS |
1402 | magic_getvec(SV *sv, MAGIC *mg) |
1403 | { | |
1404 | SV *lsv = LvTARG(sv); | |
1405 | unsigned char *s; | |
1406 | unsigned long retnum; | |
1407 | STRLEN lsvlen; | |
1408 | I32 len; | |
1409 | I32 offset; | |
1410 | I32 size; | |
1411 | ||
1412 | if (!lsv) { | |
1413 | SvOK_off(sv); | |
1414 | return 0; | |
1415 | } | |
1416 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1417 | offset = LvTARGOFF(sv); | |
1418 | size = LvTARGLEN(sv); | |
1419 | len = (offset + size + 7) / 8; | |
1420 | ||
1421 | /* Copied from pp_vec() */ | |
1422 | ||
1423 | if (len > lsvlen) { | |
1424 | if (size <= 8) | |
1425 | retnum = 0; | |
1426 | else { | |
1427 | offset >>= 3; | |
1428 | if (size == 16) { | |
1429 | if (offset >= lsvlen) | |
1430 | retnum = 0; | |
1431 | else | |
1432 | retnum = (unsigned long) s[offset] << 8; | |
1433 | } | |
1434 | else if (size == 32) { | |
1435 | if (offset >= lsvlen) | |
1436 | retnum = 0; | |
1437 | else if (offset + 1 >= lsvlen) | |
1438 | retnum = (unsigned long) s[offset] << 24; | |
1439 | else if (offset + 2 >= lsvlen) | |
1440 | retnum = ((unsigned long) s[offset] << 24) + | |
1441 | ((unsigned long) s[offset + 1] << 16); | |
1442 | else | |
1443 | retnum = ((unsigned long) s[offset] << 24) + | |
1444 | ((unsigned long) s[offset + 1] << 16) + | |
1445 | (s[offset + 2] << 8); | |
1446 | } | |
1447 | } | |
1448 | } | |
1449 | else if (size < 8) | |
1450 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1451 | else { | |
1452 | offset >>= 3; | |
1453 | if (size == 8) | |
1454 | retnum = s[offset]; | |
1455 | else if (size == 16) | |
1456 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1457 | else if (size == 32) | |
1458 | retnum = ((unsigned long) s[offset] << 24) + | |
1459 | ((unsigned long) s[offset + 1] << 16) + | |
1460 | (s[offset + 2] << 8) + s[offset+3]; | |
1461 | } | |
1462 | ||
1463 | sv_setuv(sv, (UV)retnum); | |
1464 | return 0; | |
1465 | } | |
1466 | ||
1467 | int | |
8ac85365 | 1468 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1469 | { |
1470 | do_vecset(sv); /* XXX slurp this routine */ | |
1471 | return 0; | |
1472 | } | |
1473 | ||
1474 | int | |
8ac85365 | 1475 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1476 | { |
71be2cbc | 1477 | SV *targ = Nullsv; |
5f05dabc | 1478 | if (LvTARGLEN(sv)) { |
68dc0745 | 1479 | if (mg->mg_obj) { |
74e13ce4 GS |
1480 | SV *ahv = LvTARG(sv); |
1481 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1482 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1483 | if (he) | |
1484 | targ = HeVAL(he); | |
1485 | } | |
1486 | else { | |
1487 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1488 | if (svp) | |
1489 | targ = *svp; | |
1490 | } | |
68dc0745 | 1491 | } |
1492 | else { | |
3c78fafa | 1493 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1494 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1495 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1496 | } | |
3280af22 | 1497 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1498 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1499 | /* somebody else defined it for us */ |
1500 | SvREFCNT_dec(LvTARG(sv)); | |
1501 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1502 | LvTARGLEN(sv) = 0; | |
1503 | SvREFCNT_dec(mg->mg_obj); | |
1504 | mg->mg_obj = Nullsv; | |
1505 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1506 | } | |
5f05dabc | 1507 | } |
71be2cbc | 1508 | else |
1509 | targ = LvTARG(sv); | |
3280af22 | 1510 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1511 | return 0; |
1512 | } | |
1513 | ||
1514 | int | |
8ac85365 | 1515 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1516 | { |
1517 | if (LvTARGLEN(sv)) | |
68dc0745 | 1518 | vivify_defelem(sv); |
1519 | if (LvTARG(sv)) { | |
5f05dabc | 1520 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1521 | SvSETMAGIC(LvTARG(sv)); |
1522 | } | |
5f05dabc | 1523 | return 0; |
1524 | } | |
1525 | ||
71be2cbc | 1526 | void |
8ac85365 | 1527 | vivify_defelem(SV *sv) |
71be2cbc | 1528 | { |
e858de61 | 1529 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1530 | MAGIC *mg; |
1531 | SV *value = Nullsv; | |
71be2cbc | 1532 | |
68dc0745 | 1533 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1534 | return; |
68dc0745 | 1535 | if (mg->mg_obj) { |
74e13ce4 GS |
1536 | SV *ahv = LvTARG(sv); |
1537 | if (SvTYPE(ahv) == SVt_PVHV) { | |
af7f9c15 | 1538 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1539 | if (he) |
1540 | value = HeVAL(he); | |
1541 | } | |
1542 | else { | |
af7f9c15 | 1543 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1544 | if (svp) |
1545 | value = *svp; | |
1546 | } | |
3280af22 NIS |
1547 | if (!value || value == &PL_sv_undef) |
1548 | croak(no_helem, SvPV(mg->mg_obj, PL_na)); | |
71be2cbc | 1549 | } |
68dc0745 | 1550 | else { |
1551 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1552 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1553 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1554 | else { | |
1555 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1556 | if (!svp || (value = *svp) == &PL_sv_undef) |
68dc0745 | 1557 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1558 | } | |
1559 | } | |
3e3baf6d | 1560 | (void)SvREFCNT_inc(value); |
68dc0745 | 1561 | SvREFCNT_dec(LvTARG(sv)); |
1562 | LvTARG(sv) = value; | |
71be2cbc | 1563 | LvTARGLEN(sv) = 0; |
68dc0745 | 1564 | SvREFCNT_dec(mg->mg_obj); |
1565 | mg->mg_obj = Nullsv; | |
1566 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1567 | } |
1568 | ||
1569 | int | |
8ac85365 | 1570 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1571 | { |
565764a8 | 1572 | mg->mg_len = -1; |
c6496cc7 | 1573 | SvSCREAM_off(sv); |
93a17b20 LW |
1574 | return 0; |
1575 | } | |
1576 | ||
1577 | int | |
8ac85365 | 1578 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1579 | { |
463ee0b2 | 1580 | sv_unmagic(sv, 'B'); |
79072805 LW |
1581 | SvVALID_off(sv); |
1582 | return 0; | |
1583 | } | |
1584 | ||
1585 | int | |
8ac85365 | 1586 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1587 | { |
1588 | sv_unmagic(sv, 'f'); | |
1589 | SvCOMPILED_off(sv); | |
1590 | return 0; | |
1591 | } | |
1592 | ||
1593 | int | |
8ac85365 | 1594 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1595 | { |
1596 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1597 | ||
1598 | if (uf && uf->uf_set) | |
1599 | (*uf->uf_set)(uf->uf_index, sv); | |
1600 | return 0; | |
1601 | } | |
1602 | ||
c277df42 IZ |
1603 | int |
1604 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1605 | { | |
1606 | regexp *re = (regexp *)mg->mg_obj; | |
1607 | ReREFCNT_dec(re); | |
1608 | return 0; | |
1609 | } | |
1610 | ||
7a4c00b4 | 1611 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1612 | int |
8ac85365 | 1613 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1614 | { |
1615 | /* | |
1616 | * René Descartes said "I think not." | |
1617 | * and vanished with a faint plop. | |
1618 | */ | |
7a4c00b4 | 1619 | if (mg->mg_ptr) { |
1620 | Safefree(mg->mg_ptr); | |
1621 | mg->mg_ptr = NULL; | |
565764a8 | 1622 | mg->mg_len = -1; |
7a4c00b4 | 1623 | } |
bbce6d69 | 1624 | return 0; |
1625 | } | |
7a4c00b4 | 1626 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1627 | |
1628 | int | |
8ac85365 | 1629 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1630 | { |
11343788 | 1631 | dTHR; |
79072805 LW |
1632 | register char *s; |
1633 | I32 i; | |
8990e307 | 1634 | STRLEN len; |
79072805 | 1635 | switch (*mg->mg_ptr) { |
748a9306 | 1636 | case '\001': /* ^A */ |
3280af22 | 1637 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1638 | break; |
599cee73 PM |
1639 | case '\002': /* ^B */ |
1640 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1641 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) | |
e24b16f9 | 1642 | PL_compiling.cop_warnings = WARN_ALL; |
599cee73 | 1643 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 | 1644 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 | 1645 | else { |
e24b16f9 GS |
1646 | if (PL_compiling.cop_warnings != WARN_NONE && |
1647 | PL_compiling.cop_warnings != WARN_ALL) | |
1648 | sv_setsv(PL_compiling.cop_warnings, sv); | |
599cee73 | 1649 | else |
e24b16f9 | 1650 | PL_compiling.cop_warnings = newSVsv(sv) ; |
599cee73 PM |
1651 | } |
1652 | } | |
1653 | break; | |
79072805 | 1654 | case '\004': /* ^D */ |
3280af22 | 1655 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1656 | DEBUG_x(dump_all()); |
1657 | break; | |
28f23441 | 1658 | case '\005': /* ^E */ |
1659 | #ifdef VMS | |
1660 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1661 | #else | |
22fae026 TM |
1662 | #ifdef WIN32 |
1663 | SetLastError( SvIV(sv) ); | |
1664 | #else | |
f86702cc | 1665 | /* will anyone ever use this? */ |
1666 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1667 | #endif |
22fae026 | 1668 | #endif |
28f23441 | 1669 | break; |
79072805 | 1670 | case '\006': /* ^F */ |
3280af22 | 1671 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1672 | break; |
a0d0e21e | 1673 | case '\010': /* ^H */ |
3280af22 | 1674 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1675 | break; |
9d116dd7 | 1676 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1677 | if (PL_inplace) |
1678 | Safefree(PL_inplace); | |
79072805 | 1679 | if (SvOK(sv)) |
3280af22 | 1680 | PL_inplace = savepv(SvPV(sv,PL_na)); |
79072805 | 1681 | else |
3280af22 | 1682 | PL_inplace = Nullch; |
79072805 | 1683 | break; |
28f23441 | 1684 | case '\017': /* ^O */ |
3280af22 NIS |
1685 | if (PL_osname) |
1686 | Safefree(PL_osname); | |
28f23441 | 1687 | if (SvOK(sv)) |
3280af22 | 1688 | PL_osname = savepv(SvPV(sv,PL_na)); |
28f23441 | 1689 | else |
3280af22 | 1690 | PL_osname = Nullch; |
28f23441 | 1691 | break; |
79072805 | 1692 | case '\020': /* ^P */ |
3280af22 | 1693 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1694 | break; |
1695 | case '\024': /* ^T */ | |
88e89b8a | 1696 | #ifdef BIG_TIME |
6b88bc9c | 1697 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1698 | #else |
3280af22 | 1699 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1700 | #endif |
79072805 LW |
1701 | break; |
1702 | case '\027': /* ^W */ | |
599cee73 PM |
1703 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1704 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1705 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; | |
1706 | } | |
79072805 LW |
1707 | break; |
1708 | case '.': | |
3280af22 NIS |
1709 | if (PL_localizing) { |
1710 | if (PL_localizing == 1) | |
1711 | save_sptr((SV**)&PL_last_in_gv); | |
748a9306 | 1712 | } |
3280af22 NIS |
1713 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1714 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1715 | break; |
1716 | case '^': | |
3280af22 NIS |
1717 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
1718 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na)); | |
1719 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1720 | break; |
1721 | case '~': | |
3280af22 NIS |
1722 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
1723 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na)); | |
1724 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1725 | break; |
1726 | case '=': | |
3280af22 | 1727 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1728 | break; |
1729 | case '-': | |
3280af22 NIS |
1730 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1731 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1732 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1733 | break; |
1734 | case '%': | |
3280af22 | 1735 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1736 | break; |
1737 | case '|': | |
4b65379b | 1738 | { |
3280af22 | 1739 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1740 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1741 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1742 | else { | |
1743 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1744 | PerlIO *ofp = IoOFP(io); | |
1745 | if (ofp) | |
1746 | (void)PerlIO_flush(ofp); | |
1747 | IoFLAGS(io) |= IOf_FLUSH; | |
1748 | } | |
1749 | } | |
79072805 LW |
1750 | } |
1751 | break; | |
1752 | case '*': | |
463ee0b2 | 1753 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1754 | PL_multiline = (i != 0); |
79072805 LW |
1755 | break; |
1756 | case '/': | |
3280af22 NIS |
1757 | SvREFCNT_dec(PL_nrs); |
1758 | PL_nrs = newSVsv(sv); | |
1759 | SvREFCNT_dec(PL_rs); | |
1760 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1761 | break; |
1762 | case '\\': | |
3280af22 NIS |
1763 | if (PL_ors) |
1764 | Safefree(PL_ors); | |
e3c19b7b | 1765 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 | 1766 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b | 1767 | else { |
3280af22 NIS |
1768 | PL_ors = Nullch; |
1769 | PL_orslen = 0; | |
e3c19b7b | 1770 | } |
79072805 LW |
1771 | break; |
1772 | case ',': | |
3280af22 NIS |
1773 | if (PL_ofs) |
1774 | Safefree(PL_ofs); | |
1775 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1776 | break; |
1777 | case '#': | |
3280af22 NIS |
1778 | if (PL_ofmt) |
1779 | Safefree(PL_ofmt); | |
1780 | PL_ofmt = savepv(SvPV(sv,PL_na)); | |
79072805 LW |
1781 | break; |
1782 | case '[': | |
3280af22 | 1783 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1784 | break; |
1785 | case '?': | |
ff0cee69 | 1786 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1787 | if (PL_localizing == 2) { |
1788 | PL_statusvalue = LvTARGOFF(sv); | |
1789 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1790 | } |
1791 | else | |
1792 | #endif | |
1793 | #ifdef VMSISH_STATUS | |
1794 | if (VMSISH_STATUS) | |
1795 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1796 | else | |
1797 | #endif | |
1798 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1799 | break; |
1800 | case '!': | |
78987ded | 1801 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1802 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1803 | break; |
1804 | case '<': | |
3280af22 NIS |
1805 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1806 | if (PL_delaymagic) { | |
1807 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1808 | break; /* don't do magic till later */ |
1809 | } | |
1810 | #ifdef HAS_SETRUID | |
b28d0864 | 1811 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1812 | #else |
1813 | #ifdef HAS_SETREUID | |
3280af22 | 1814 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1815 | #else |
85e6fe83 | 1816 | #ifdef HAS_SETRESUID |
b28d0864 | 1817 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1818 | #else |
b28d0864 NIS |
1819 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1820 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1821 | else { |
b28d0864 | 1822 | PL_uid = (I32)PerlProc_getuid(); |
463ee0b2 | 1823 | croak("setruid() not implemented"); |
a0d0e21e | 1824 | } |
79072805 LW |
1825 | #endif |
1826 | #endif | |
85e6fe83 | 1827 | #endif |
3280af22 NIS |
1828 | PL_uid = (I32)PerlProc_getuid(); |
1829 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1830 | break; |
1831 | case '>': | |
3280af22 NIS |
1832 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1833 | if (PL_delaymagic) { | |
1834 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1835 | break; /* don't do magic till later */ |
1836 | } | |
1837 | #ifdef HAS_SETEUID | |
3280af22 | 1838 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1839 | #else |
1840 | #ifdef HAS_SETREUID | |
b28d0864 | 1841 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1842 | #else |
1843 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1844 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1845 | #else |
b28d0864 NIS |
1846 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1847 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1848 | else { |
b28d0864 | 1849 | PL_euid = (I32)PerlProc_geteuid(); |
463ee0b2 | 1850 | croak("seteuid() not implemented"); |
a0d0e21e | 1851 | } |
79072805 LW |
1852 | #endif |
1853 | #endif | |
85e6fe83 | 1854 | #endif |
3280af22 NIS |
1855 | PL_euid = (I32)PerlProc_geteuid(); |
1856 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1857 | break; |
1858 | case '(': | |
3280af22 NIS |
1859 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1860 | if (PL_delaymagic) { | |
1861 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1862 | break; /* don't do magic till later */ |
1863 | } | |
1864 | #ifdef HAS_SETRGID | |
b28d0864 | 1865 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1866 | #else |
1867 | #ifdef HAS_SETREGID | |
3280af22 | 1868 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1869 | #else |
1870 | #ifdef HAS_SETRESGID | |
b28d0864 | 1871 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1872 | #else |
b28d0864 NIS |
1873 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1874 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1875 | else { |
b28d0864 | 1876 | PL_gid = (I32)PerlProc_getgid(); |
463ee0b2 | 1877 | croak("setrgid() not implemented"); |
748a9306 | 1878 | } |
79072805 LW |
1879 | #endif |
1880 | #endif | |
85e6fe83 | 1881 | #endif |
3280af22 NIS |
1882 | PL_gid = (I32)PerlProc_getgid(); |
1883 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1884 | break; |
1885 | case ')': | |
5cd24f17 | 1886 | #ifdef HAS_SETGROUPS |
1887 | { | |
3280af22 | 1888 | char *p = SvPV(sv, PL_na); |
5cd24f17 | 1889 | Groups_t gary[NGROUPS]; |
1890 | ||
1891 | SET_NUMERIC_STANDARD(); | |
1892 | while (isSPACE(*p)) | |
1893 | ++p; | |
3280af22 | 1894 | PL_egid = I_V(atof(p)); |
5cd24f17 | 1895 | for (i = 0; i < NGROUPS; ++i) { |
1896 | while (*p && !isSPACE(*p)) | |
1897 | ++p; | |
1898 | while (isSPACE(*p)) | |
1899 | ++p; | |
1900 | if (!*p) | |
1901 | break; | |
1902 | gary[i] = I_V(atof(p)); | |
1903 | } | |
8cc95fdb | 1904 | if (i) |
1905 | (void)setgroups(i, gary); | |
5cd24f17 | 1906 | } |
1907 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1908 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1909 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1910 | if (PL_delaymagic) { |
1911 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1912 | break; /* don't do magic till later */ |
1913 | } | |
1914 | #ifdef HAS_SETEGID | |
3280af22 | 1915 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1916 | #else |
1917 | #ifdef HAS_SETREGID | |
b28d0864 | 1918 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1919 | #else |
1920 | #ifdef HAS_SETRESGID | |
b28d0864 | 1921 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1922 | #else |
b28d0864 NIS |
1923 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1924 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1925 | else { |
b28d0864 | 1926 | PL_egid = (I32)PerlProc_getegid(); |
463ee0b2 | 1927 | croak("setegid() not implemented"); |
748a9306 | 1928 | } |
79072805 LW |
1929 | #endif |
1930 | #endif | |
85e6fe83 | 1931 | #endif |
3280af22 NIS |
1932 | PL_egid = (I32)PerlProc_getegid(); |
1933 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1934 | break; |
1935 | case ':': | |
3280af22 | 1936 | PL_chopset = SvPV_force(sv,PL_na); |
79072805 LW |
1937 | break; |
1938 | case '0': | |
3280af22 NIS |
1939 | if (!PL_origalen) { |
1940 | s = PL_origargv[0]; | |
79072805 LW |
1941 | s += strlen(s); |
1942 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1943 | for (i = 1; i < PL_origargc; i++) { |
1944 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1945 | #ifdef OS2 |
6b88bc9c | 1946 | || PL_origargv[i] == s + 2 |
fb73857a | 1947 | #endif |
1948 | ) | |
79072805 | 1949 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1950 | else |
1951 | break; | |
79072805 | 1952 | } |
bbce6d69 | 1953 | /* can grab env area too? */ |
3280af22 | 1954 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 1955 | #ifdef OS2 |
6b88bc9c | 1956 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 1957 | #endif |
1958 | )) { | |
66b1d557 | 1959 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 1960 | /* force copy of environment */ |
3280af22 NIS |
1961 | for (i = 0; PL_origenviron[i]; i++) |
1962 | if (PL_origenviron[i] == s + 1) | |
79072805 | 1963 | s += strlen(++s); |
fb73857a | 1964 | else |
1965 | break; | |
79072805 | 1966 | } |
3280af22 | 1967 | PL_origalen = s - PL_origargv[0]; |
79072805 | 1968 | } |
a0d0e21e | 1969 | s = SvPV_force(sv,len); |
8990e307 | 1970 | i = len; |
3280af22 NIS |
1971 | if (i >= PL_origalen) { |
1972 | i = PL_origalen; | |
fb73857a | 1973 | /* don't allow system to limit $0 seen by script */ |
1974 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
1975 | Copy(s, PL_origargv[0], i, char); |
1976 | s = PL_origargv[0]+i; | |
fb73857a | 1977 | *s = '\0'; |
79072805 LW |
1978 | } |
1979 | else { | |
3280af22 NIS |
1980 | Copy(s, PL_origargv[0], i, char); |
1981 | s = PL_origargv[0]+i; | |
79072805 | 1982 | *s++ = '\0'; |
3280af22 | 1983 | while (++i < PL_origalen) |
8990e307 | 1984 | *s++ = ' '; |
3280af22 NIS |
1985 | s = PL_origargv[0]+i; |
1986 | for (i = 1; i < PL_origargc; i++) | |
1987 | PL_origargv[i] = Nullch; | |
79072805 LW |
1988 | } |
1989 | break; | |
a863c7d1 MB |
1990 | #ifdef USE_THREADS |
1991 | case '@': | |
38a03e6e | 1992 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1993 | break; |
1994 | #endif /* USE_THREADS */ | |
79072805 LW |
1995 | } |
1996 | return 0; | |
1997 | } | |
1998 | ||
f93b4edd MB |
1999 | #ifdef USE_THREADS |
2000 | int | |
8ac85365 | 2001 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
2002 | { |
2003 | dTHR; | |
8b73bbec | 2004 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 | 2005 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd MB |
2006 | if (MgOWNER(mg)) |
2007 | croak("panic: magic_mutexfree"); | |
2008 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
2009 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 2010 | SvREFCNT_dec(sv); |
f93b4edd MB |
2011 | return 0; |
2012 | } | |
2013 | #endif /* USE_THREADS */ | |
2014 | ||
79072805 | 2015 | I32 |
8ac85365 | 2016 | whichsig(char *sig) |
79072805 LW |
2017 | { |
2018 | register char **sigv; | |
2019 | ||
2020 | for (sigv = sig_name+1; *sigv; sigv++) | |
2021 | if (strEQ(sig,*sigv)) | |
8e07c86e | 2022 | return sig_num[sigv - sig_name]; |
79072805 LW |
2023 | #ifdef SIGCLD |
2024 | if (strEQ(sig,"CHLD")) | |
2025 | return SIGCLD; | |
2026 | #endif | |
2027 | #ifdef SIGCHLD | |
2028 | if (strEQ(sig,"CLD")) | |
2029 | return SIGCHLD; | |
2030 | #endif | |
2031 | return 0; | |
2032 | } | |
2033 | ||
84902520 TB |
2034 | static SV* sig_sv; |
2035 | ||
76e3520e | 2036 | STATIC void |
8ac85365 | 2037 | unwind_handler_stack(void *p) |
84902520 | 2038 | { |
ff26ac79 | 2039 | dTHR; |
84902520 TB |
2040 | U32 flags = *(U32*)p; |
2041 | ||
2042 | if (flags & 1) | |
3280af22 | 2043 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 TB |
2044 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2045 | if (flags & 64) | |
2046 | SvREFCNT_dec(sig_sv); | |
2047 | } | |
2048 | ||
ecfc5424 | 2049 | Signal_t |
8ac85365 | 2050 | sighandler(int sig) |
79072805 LW |
2051 | { |
2052 | dSP; | |
00d579c5 | 2053 | GV *gv = Nullgv; |
a0d0e21e | 2054 | HV *st; |
3280af22 | 2055 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2056 | CV *cv = Nullcv; |
533c011a | 2057 | OP *myop = PL_op; |
84902520 | 2058 | U32 flags = 0; |
3280af22 NIS |
2059 | I32 o_save_i = PL_savestack_ix, type; |
2060 | XPV *tXpv = PL_Xpv; | |
84902520 | 2061 | |
3280af22 | 2062 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2063 | flags |= 1; |
3280af22 | 2064 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2065 | flags |= 4; |
3280af22 | 2066 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2067 | flags |= 8; |
3280af22 | 2068 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2069 | flags |= 16; |
2070 | ||
ff0cee69 | 2071 | if (!psig_ptr[sig]) |
2072 | die("Signal SIG%s received, but no signal handler set.\n", | |
2073 | sig_name[sig]); | |
2074 | ||
84902520 TB |
2075 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2076 | infinity, so we fix 4 (in fact 5): */ | |
2077 | if (flags & 1) { | |
3280af22 NIS |
2078 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2079 | o_save_i = PL_savestack_ix; | |
565764a8 | 2080 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2081 | } |
2082 | if (flags & 4) | |
3280af22 | 2083 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2084 | if (flags & 8) { |
3280af22 NIS |
2085 | PL_retstack_ix++; |
2086 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2087 | } |
2088 | if (flags & 16) | |
3280af22 | 2089 | PL_scopestack_ix += 1; |
84902520 TB |
2090 | /* sv_2cv is too complicated, try a simpler variant first: */ |
2091 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
2092 | || SvTYPE(cv) != SVt_PVCV) | |
2093 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
2094 | ||
a0d0e21e | 2095 | if (!cv || !CvROOT(cv)) { |
599cee73 PM |
2096 | if (ckWARN(WARN_SIGNAL)) |
2097 | warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
2098 | sig_name[sig], (gv ? GvENAME(gv) |
2099 | : ((cv && CvGV(cv)) | |
2100 | ? GvENAME(CvGV(cv)) | |
2101 | : "__ANON__"))); | |
2102 | goto cleanup; | |
79072805 LW |
2103 | } |
2104 | ||
84902520 | 2105 | if(psig_name[sig]) { |
88e89b8a | 2106 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
2107 | flags |= 64; |
2108 | sig_sv = sv; | |
2109 | } else { | |
ff0cee69 | 2110 | sv = sv_newmortal(); |
2111 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 2112 | } |
e336de0d | 2113 | |
e788e7d3 | 2114 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2115 | PUSHMARK(SP); |
79072805 | 2116 | PUSHs(sv); |
79072805 | 2117 | PUTBACK; |
a0d0e21e LW |
2118 | |
2119 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 | 2120 | |
d3acc0f7 | 2121 | POPSTACK; |
00d579c5 | 2122 | cleanup: |
84902520 | 2123 | if (flags & 1) |
3280af22 | 2124 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2125 | if (flags & 4) |
3280af22 | 2126 | PL_markstack_ptr--; |
84902520 | 2127 | if (flags & 8) |
3280af22 | 2128 | PL_retstack_ix--; |
84902520 | 2129 | if (flags & 16) |
3280af22 | 2130 | PL_scopestack_ix -= 1; |
84902520 TB |
2131 | if (flags & 64) |
2132 | SvREFCNT_dec(sv); | |
533c011a | 2133 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2134 | |
3280af22 NIS |
2135 | PL_Sv = tSv; /* Restore global temporaries. */ |
2136 | PL_Xpv = tXpv; | |
79072805 LW |
2137 | return; |
2138 | } | |
4e35701f NIS |
2139 | |
2140 |