Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4eb8286e | 3 | * Copyright (c) 1991-1999, 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 | |
20ce7b12 | 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 |
08105a92 | 278 | mg_copy(SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 279 | { |
463ee0b2 | 280 | int count = 0; |
79072805 | 281 | MAGIC* mg; |
463ee0b2 LW |
282 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
283 | if (isUPPER(mg->mg_type)) { | |
33c27489 GS |
284 | sv_magic(nsv, |
285 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj, | |
286 | toLOWER(mg->mg_type), key, klen); | |
463ee0b2 | 287 | count++; |
79072805 | 288 | } |
79072805 | 289 | } |
463ee0b2 | 290 | return count; |
79072805 LW |
291 | } |
292 | ||
293 | int | |
8ac85365 | 294 | mg_free(SV *sv) |
79072805 LW |
295 | { |
296 | MAGIC* mg; | |
297 | MAGIC* moremagic; | |
298 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
299 | MGVTBL* vtbl = mg->mg_virtual; | |
300 | moremagic = mg->mg_moremagic; | |
76e3520e GS |
301 | if (vtbl && (vtbl->svt_free != NULL)) |
302 | (VTBL->svt_free)(sv, mg); | |
93a17b20 | 303 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 304 | if (mg->mg_len >= 0) |
88e89b8a | 305 | Safefree(mg->mg_ptr); |
565764a8 | 306 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 307 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 308 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 309 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
310 | Safefree(mg); |
311 | } | |
312 | SvMAGIC(sv) = 0; | |
313 | return 0; | |
314 | } | |
315 | ||
316 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
317 | #include <signal.h> | |
318 | #endif | |
319 | ||
942e002e | 320 | U32 |
6cef1e77 IZ |
321 | magic_regdata_cnt(SV *sv, MAGIC *mg) |
322 | { | |
323 | dTHR; | |
324 | register char *s; | |
325 | register I32 i; | |
326 | register REGEXP *rx; | |
327 | char *t; | |
328 | ||
8f580fb8 IZ |
329 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
330 | if (mg->mg_obj) /* @+ */ | |
331 | return rx->nparens; | |
332 | else /* @- */ | |
333 | return rx->lastparen; | |
334 | } | |
335 | ||
942e002e | 336 | return (U32)-1; |
6cef1e77 IZ |
337 | } |
338 | ||
339 | int | |
340 | magic_regdatum_get(SV *sv, MAGIC *mg) | |
341 | { | |
342 | dTHR; | |
343 | register I32 paren; | |
cf93c79d | 344 | register I32 s; |
6cef1e77 IZ |
345 | register I32 i; |
346 | register REGEXP *rx; | |
cf93c79d | 347 | I32 t; |
6cef1e77 IZ |
348 | |
349 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
350 | paren = mg->mg_len; | |
351 | if (paren < 0) | |
352 | return 0; | |
353 | if (paren <= rx->nparens && | |
cf93c79d IZ |
354 | (s = rx->startp[paren]) != -1 && |
355 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
356 | { |
357 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 358 | i = t; |
6cef1e77 | 359 | else /* @- */ |
cf93c79d | 360 | i = s; |
6cef1e77 IZ |
361 | sv_setiv(sv,i); |
362 | } | |
363 | } | |
364 | return 0; | |
365 | } | |
366 | ||
93a17b20 | 367 | U32 |
8ac85365 | 368 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 369 | { |
a863c7d1 | 370 | dTHR; |
93a17b20 LW |
371 | register I32 paren; |
372 | register char *s; | |
373 | register I32 i; | |
d9f97599 | 374 | register REGEXP *rx; |
748a9306 | 375 | char *t; |
93a17b20 LW |
376 | |
377 | switch (*mg->mg_ptr) { | |
378 | case '1': case '2': case '3': case '4': | |
379 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 380 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
381 | I32 s1, t1; |
382 | ||
93a17b20 LW |
383 | paren = atoi(mg->mg_ptr); |
384 | getparen: | |
d9f97599 | 385 | if (paren <= rx->nparens && |
cf93c79d IZ |
386 | (s1 = rx->startp[paren]) != -1 && |
387 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 388 | { |
cf93c79d | 389 | i = t1 - s1; |
71be2cbc | 390 | if (i >= 0) |
93a17b20 | 391 | return i; |
93a17b20 | 392 | } |
93a17b20 | 393 | } |
748a9306 | 394 | return 0; |
93a17b20 | 395 | case '+': |
3280af22 | 396 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 397 | paren = rx->lastparen; |
13f57bf8 CS |
398 | if (paren) |
399 | goto getparen; | |
93a17b20 | 400 | } |
748a9306 | 401 | return 0; |
93a17b20 | 402 | case '`': |
3280af22 | 403 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
404 | if (rx->startp[0] != -1) { |
405 | i = rx->startp[0]; | |
71be2cbc | 406 | if (i >= 0) |
93a17b20 | 407 | return i; |
93a17b20 | 408 | } |
93a17b20 | 409 | } |
748a9306 | 410 | return 0; |
93a17b20 | 411 | case '\'': |
3280af22 | 412 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
413 | if (rx->endp[0] != -1) { |
414 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 415 | if (i >= 0) |
5cd24f17 | 416 | return i; |
93a17b20 | 417 | } |
93a17b20 | 418 | } |
748a9306 | 419 | return 0; |
93a17b20 | 420 | case ',': |
3280af22 | 421 | return (STRLEN)PL_ofslen; |
93a17b20 | 422 | case '\\': |
3280af22 | 423 | return (STRLEN)PL_orslen; |
93a17b20 LW |
424 | } |
425 | magic_get(sv,mg); | |
2d8e6c8d GS |
426 | if (!SvPOK(sv) && SvNIOK(sv)) { |
427 | STRLEN n_a; | |
428 | sv_2pv(sv, &n_a); | |
429 | } | |
93a17b20 LW |
430 | if (SvPOK(sv)) |
431 | return SvCUR(sv); | |
432 | return 0; | |
433 | } | |
434 | ||
599cee73 PM |
435 | #if 0 |
436 | static char * | |
ba106d47 | 437 | printW(SV *sv) |
599cee73 PM |
438 | { |
439 | #if 1 | |
440 | return "" ; | |
441 | ||
442 | #else | |
443 | int i ; | |
444 | static char buffer[50] ; | |
445 | char buf1[20] ; | |
446 | char * p ; | |
447 | ||
448 | ||
449 | sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ; | |
450 | p = SvPVX(sv) ; | |
451 | for (i = 0; i < SvCUR(sv) ; ++ i) { | |
452 | sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ; | |
453 | strcat(buffer, buf1) ; | |
454 | } | |
455 | ||
456 | return buffer ; | |
457 | ||
458 | #endif | |
459 | } | |
460 | #endif | |
461 | ||
79072805 | 462 | int |
8ac85365 | 463 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 464 | { |
a863c7d1 | 465 | dTHR; |
79072805 LW |
466 | register I32 paren; |
467 | register char *s; | |
468 | register I32 i; | |
d9f97599 | 469 | register REGEXP *rx; |
748a9306 | 470 | char *t; |
79072805 LW |
471 | |
472 | switch (*mg->mg_ptr) { | |
748a9306 | 473 | case '\001': /* ^A */ |
3280af22 | 474 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 475 | break; |
599cee73 PM |
476 | case '\002': /* ^B */ |
477 | /* printf("magic_get $^B: ") ; */ | |
e24b16f9 | 478 | if (PL_curcop->cop_warnings == WARN_NONE) |
599cee73 PM |
479 | /* printf("WARN_NONE\n"), */ |
480 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
e24b16f9 | 481 | else if (PL_curcop->cop_warnings == WARN_ALL) |
599cee73 PM |
482 | /* printf("WARN_ALL\n"), */ |
483 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
484 | else | |
e24b16f9 GS |
485 | /* printf("some %s\n", printW(PL_curcop->cop_warnings)), */ |
486 | sv_setsv(sv, PL_curcop->cop_warnings); | |
599cee73 | 487 | break; |
49460fe6 NIS |
488 | case '\003': /* ^C */ |
489 | sv_setiv(sv, (IV)PL_minus_c); | |
490 | break; | |
491 | ||
79072805 | 492 | case '\004': /* ^D */ |
3280af22 | 493 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 | 494 | break; |
28f23441 | 495 | case '\005': /* ^E */ |
496 | #ifdef VMS | |
497 | { | |
498 | # include <descrip.h> | |
499 | # include <starlet.h> | |
500 | char msg[255]; | |
501 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 502 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 503 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
504 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
505 | else | |
506 | sv_setpv(sv,""); | |
507 | } | |
508 | #else | |
88e89b8a | 509 | #ifdef OS2 |
fb73857a | 510 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
511 | sv_setnv(sv, (double)errno); | |
512 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
513 | } else { | |
017f25f1 IZ |
514 | if (errno != errno_isOS2) { |
515 | int tmp = _syserrno(); | |
516 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
517 | Perl_rc = tmp; | |
518 | } | |
fb73857a | 519 | sv_setnv(sv, (double)Perl_rc); |
520 | sv_setpv(sv, os2error(Perl_rc)); | |
521 | } | |
88e89b8a | 522 | #else |
22fae026 TM |
523 | #ifdef WIN32 |
524 | { | |
525 | DWORD dwErr = GetLastError(); | |
526 | sv_setnv(sv, (double)dwErr); | |
527 | if (dwErr) | |
76e3520e GS |
528 | { |
529 | #ifdef PERL_OBJECT | |
530 | char *sMsg; | |
531 | DWORD dwLen; | |
532 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); | |
533 | sv_setpvn(sv, sMsg, dwLen); | |
534 | PerlProc_FreeBuf(sMsg); | |
535 | #else | |
22fae026 | 536 | win32_str_os_error(sv, dwErr); |
76e3520e GS |
537 | #endif |
538 | } | |
22fae026 TM |
539 | else |
540 | sv_setpv(sv, ""); | |
541 | SetLastError(dwErr); | |
542 | } | |
543 | #else | |
946ec16e | 544 | sv_setnv(sv, (double)errno); |
28f23441 | 545 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
546 | #endif | |
88e89b8a | 547 | #endif |
22fae026 | 548 | #endif |
946ec16e | 549 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 550 | break; |
79072805 | 551 | case '\006': /* ^F */ |
3280af22 | 552 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 553 | break; |
a0d0e21e | 554 | case '\010': /* ^H */ |
3280af22 | 555 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 556 | break; |
9d116dd7 | 557 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
558 | if (PL_inplace) |
559 | sv_setpv(sv, PL_inplace); | |
79072805 | 560 | else |
3280af22 | 561 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 562 | break; |
28f23441 | 563 | case '\017': /* ^O */ |
3280af22 | 564 | sv_setpv(sv, PL_osname); |
28f23441 | 565 | break; |
79072805 | 566 | case '\020': /* ^P */ |
3280af22 | 567 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 568 | break; |
fb73857a | 569 | case '\023': /* ^S */ |
d58bf5aa MB |
570 | { |
571 | dTHR; | |
3280af22 | 572 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 573 | SvOK_off(sv); |
3280af22 | 574 | else if (PL_in_eval) |
d58bf5aa MB |
575 | sv_setiv(sv, 1); |
576 | else | |
577 | sv_setiv(sv, 0); | |
578 | } | |
fb73857a | 579 | break; |
79072805 | 580 | case '\024': /* ^T */ |
88e89b8a | 581 | #ifdef BIG_TIME |
6b88bc9c | 582 | sv_setnv(sv, PL_basetime); |
88e89b8a | 583 | #else |
3280af22 | 584 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 585 | #endif |
79072805 LW |
586 | break; |
587 | case '\027': /* ^W */ | |
599cee73 | 588 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 LW |
589 | break; |
590 | case '1': case '2': case '3': case '4': | |
591 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 592 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
593 | I32 s1, t1; |
594 | ||
a863c7d1 MB |
595 | /* |
596 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
597 | * XXX Does the new way break anything? | |
598 | */ | |
599 | paren = atoi(mg->mg_ptr); | |
79072805 | 600 | getparen: |
d9f97599 | 601 | if (paren <= rx->nparens && |
cf93c79d IZ |
602 | (s1 = rx->startp[paren]) != -1 && |
603 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 604 | { |
cf93c79d IZ |
605 | i = t1 - s1; |
606 | s = rx->subbeg + s1; | |
13f57bf8 | 607 | getrx: |
748a9306 | 608 | if (i >= 0) { |
13f57bf8 | 609 | bool was_tainted; |
3280af22 NIS |
610 | if (PL_tainting) { |
611 | was_tainted = PL_tainted; | |
612 | PL_tainted = FALSE; | |
13f57bf8 | 613 | } |
cf93c79d | 614 | sv_setpvn(sv, s, i); |
3280af22 NIS |
615 | if (PL_tainting) |
616 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
617 | break; |
618 | } | |
79072805 | 619 | } |
79072805 | 620 | } |
3280af22 | 621 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
622 | break; |
623 | case '+': | |
3280af22 | 624 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 625 | paren = rx->lastparen; |
a0d0e21e LW |
626 | if (paren) |
627 | goto getparen; | |
79072805 | 628 | } |
3280af22 | 629 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
630 | break; |
631 | case '`': | |
3280af22 | 632 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
633 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
634 | i = rx->startp[0]; | |
13f57bf8 | 635 | goto getrx; |
79072805 | 636 | } |
79072805 | 637 | } |
3280af22 | 638 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
639 | break; |
640 | case '\'': | |
3280af22 | 641 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
642 | if (rx->subbeg && rx->endp[0] != -1) { |
643 | s = rx->subbeg + rx->endp[0]; | |
644 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 645 | goto getrx; |
79072805 | 646 | } |
79072805 | 647 | } |
3280af22 | 648 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
649 | break; |
650 | case '.': | |
651 | #ifndef lint | |
3280af22 NIS |
652 | if (GvIO(PL_last_in_gv)) { |
653 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
654 | } |
655 | #endif | |
656 | break; | |
657 | case '?': | |
809a5acc | 658 | { |
809a5acc | 659 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 660 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
661 | LvTARGOFF(sv) = PL_statusvalue; |
662 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 663 | #endif |
809a5acc | 664 | } |
79072805 LW |
665 | break; |
666 | case '^': | |
3280af22 | 667 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
668 | if (s) |
669 | sv_setpv(sv,s); | |
670 | else { | |
3280af22 | 671 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
672 | sv_catpv(sv,"_TOP"); |
673 | } | |
674 | break; | |
675 | case '~': | |
3280af22 | 676 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 677 | if (!s) |
3280af22 | 678 | s = GvENAME(PL_defoutgv); |
79072805 LW |
679 | sv_setpv(sv,s); |
680 | break; | |
681 | #ifndef lint | |
682 | case '=': | |
3280af22 | 683 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
684 | break; |
685 | case '-': | |
3280af22 | 686 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
687 | break; |
688 | case '%': | |
3280af22 | 689 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
690 | break; |
691 | #endif | |
692 | case ':': | |
693 | break; | |
694 | case '/': | |
695 | break; | |
696 | case '[': | |
3280af22 | 697 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
698 | break; |
699 | case '|': | |
3280af22 | 700 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
701 | break; |
702 | case ',': | |
3280af22 | 703 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
704 | break; |
705 | case '\\': | |
3280af22 | 706 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
707 | break; |
708 | case '#': | |
3280af22 | 709 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
710 | break; |
711 | case '!': | |
a5f75d66 | 712 | #ifdef VMS |
946ec16e | 713 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 714 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 715 | #else |
88e89b8a | 716 | { |
717 | int saveerrno = errno; | |
946ec16e | 718 | sv_setnv(sv, (double)errno); |
88e89b8a | 719 | #ifdef OS2 |
720 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
721 | else | |
a5f75d66 | 722 | #endif |
2304df62 | 723 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 724 | errno = saveerrno; |
725 | } | |
726 | #endif | |
946ec16e | 727 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
728 | break; |
729 | case '<': | |
3280af22 | 730 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
731 | break; |
732 | case '>': | |
3280af22 | 733 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
734 | break; |
735 | case '(': | |
3280af22 NIS |
736 | sv_setiv(sv, (IV)PL_gid); |
737 | sv_setpvf(sv, "%Vd", (IV)PL_gid); | |
79072805 LW |
738 | goto add_groups; |
739 | case ')': | |
3280af22 NIS |
740 | sv_setiv(sv, (IV)PL_egid); |
741 | sv_setpvf(sv, "%Vd", (IV)PL_egid); | |
79072805 | 742 | add_groups: |
79072805 | 743 | #ifdef HAS_GETGROUPS |
79072805 | 744 | { |
a0d0e21e | 745 | Groups_t gary[NGROUPS]; |
79072805 | 746 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 747 | while (--i >= 0) |
fc36a67e | 748 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
749 | } |
750 | #endif | |
29355cf7 | 751 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
752 | break; |
753 | case '*': | |
754 | break; | |
755 | case '0': | |
756 | break; | |
a863c7d1 MB |
757 | #ifdef USE_THREADS |
758 | case '@': | |
38a03e6e | 759 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
760 | break; |
761 | #endif /* USE_THREADS */ | |
79072805 | 762 | } |
a0d0e21e | 763 | return 0; |
79072805 LW |
764 | } |
765 | ||
766 | int | |
8ac85365 | 767 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
768 | { |
769 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
770 | ||
771 | if (uf && uf->uf_val) | |
772 | (*uf->uf_val)(uf->uf_index, sv); | |
773 | return 0; | |
774 | } | |
775 | ||
776 | int | |
8ac85365 | 777 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
778 | { |
779 | register char *s; | |
88e89b8a | 780 | char *ptr; |
5aabfad6 | 781 | STRLEN len, klen; |
a0d0e21e | 782 | I32 i; |
1e422769 | 783 | |
a0d0e21e | 784 | s = SvPV(sv,len); |
5aabfad6 | 785 | ptr = MgPV(mg,klen); |
88e89b8a | 786 | my_setenv(ptr, s); |
1e422769 | 787 | |
a0d0e21e LW |
788 | #ifdef DYNAMIC_ENV_FETCH |
789 | /* We just undefd an environment var. Is a replacement */ | |
790 | /* waiting in the wings? */ | |
791 | if (!len) { | |
5aabfad6 | 792 | SV **valp; |
6b88bc9c | 793 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 794 | s = SvPV(*valp, len); |
a0d0e21e LW |
795 | } |
796 | #endif | |
1e422769 | 797 | |
39e571d4 | 798 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
799 | /* And you'll never guess what the dog had */ |
800 | /* in its mouth... */ | |
3280af22 | 801 | if (PL_tainting) { |
1e422769 | 802 | MgTAINTEDDIR_off(mg); |
803 | #ifdef VMS | |
5aabfad6 | 804 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 805 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
806 | struct stat sbuf; | |
807 | int i = 0, j = 0; | |
808 | ||
809 | do { /* DCL$PATH may be a search list */ | |
810 | while (1) { /* as may dev portion of any element */ | |
811 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
812 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
813 | cando_by_name(S_IWUSR,0,elt) ) { | |
814 | MgTAINTEDDIR_on(mg); | |
815 | return 0; | |
816 | } | |
817 | } | |
818 | if ((cp = strchr(elt, ':')) != Nullch) | |
819 | *cp = '\0'; | |
820 | if (my_trnlnm(elt, eltbuf, j++)) | |
821 | elt = eltbuf; | |
822 | else | |
823 | break; | |
824 | } | |
825 | j = 0; | |
826 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
827 | } | |
828 | #endif /* VMS */ | |
5aabfad6 | 829 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 830 | char *strend = s + len; |
463ee0b2 LW |
831 | |
832 | while (s < strend) { | |
96827780 | 833 | char tmpbuf[256]; |
1e422769 | 834 | struct stat st; |
96827780 | 835 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 836 | s, strend, ':', &i); |
463ee0b2 | 837 | s++; |
96827780 MB |
838 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
839 | || *tmpbuf != '/' | |
c6ed36e1 | 840 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 841 | MgTAINTEDDIR_on(mg); |
1e422769 | 842 | return 0; |
843 | } | |
463ee0b2 | 844 | } |
79072805 LW |
845 | } |
846 | } | |
39e571d4 | 847 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 848 | |
79072805 LW |
849 | return 0; |
850 | } | |
851 | ||
852 | int | |
8ac85365 | 853 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 854 | { |
2d8e6c8d GS |
855 | STRLEN n_a; |
856 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
857 | return 0; |
858 | } | |
859 | ||
88e89b8a | 860 | int |
8ac85365 | 861 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 862 | { |
863 | #if defined(VMS) | |
864 | die("Can't make list assignment to %%ENV on this system"); | |
865 | #else | |
d58bf5aa | 866 | dTHR; |
3280af22 | 867 | if (PL_localizing) { |
fb73857a | 868 | HE* entry; |
2d8e6c8d | 869 | STRLEN n_a; |
fb73857a | 870 | magic_clear_all_env(sv,mg); |
871 | hv_iterinit((HV*)sv); | |
872 | while (entry = hv_iternext((HV*)sv)) { | |
873 | I32 keylen; | |
874 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 875 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 876 | } |
877 | } | |
878 | #endif | |
879 | return 0; | |
880 | } | |
881 | ||
882 | int | |
8ac85365 | 883 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 884 | { |
3e3baf6d TB |
885 | #if defined(VMS) |
886 | die("Can't make list assignment to %%ENV on this system"); | |
887 | #else | |
f2517201 | 888 | # ifdef WIN32 |
3e3baf6d TB |
889 | char *envv = GetEnvironmentStrings(); |
890 | char *cur = envv; | |
891 | STRLEN len; | |
892 | while (*cur) { | |
893 | char *end = strchr(cur,'='); | |
894 | if (end && end != cur) { | |
895 | *end = '\0'; | |
896 | my_setenv(cur,Nullch); | |
897 | *end = '='; | |
ac5c734f | 898 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
899 | } |
900 | else if ((len = strlen(cur))) | |
901 | cur += len+1; | |
902 | } | |
903 | FreeEnvironmentStrings(envv); | |
f2517201 GS |
904 | # else |
905 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
906 | I32 i; |
907 | ||
3280af22 | 908 | if (environ == PL_origenviron) |
f2517201 | 909 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
910 | else |
911 | for (i = 0; environ[i]; i++) | |
f2517201 GS |
912 | safesysfree(environ[i]); |
913 | # endif /* PERL_USE_SAFE_PUTENV */ | |
914 | ||
66b1d557 HM |
915 | environ[0] = Nullch; |
916 | ||
f2517201 GS |
917 | # endif /* WIN32 */ |
918 | #endif /* VMS */ | |
3e3baf6d | 919 | return 0; |
66b1d557 HM |
920 | } |
921 | ||
922 | int | |
8ac85365 | 923 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 924 | { |
925 | I32 i; | |
2d8e6c8d | 926 | STRLEN n_a; |
88e89b8a | 927 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 928 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 929 | if (i) { |
22c35a8c GS |
930 | if(PL_psig_ptr[i]) |
931 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 932 | else { |
ff68c719 | 933 | Sighandler_t sigstate = rsignal_state(i); |
934 | ||
88e89b8a | 935 | /* cache state so we don't fetch it again */ |
ff68c719 | 936 | if(sigstate == SIG_IGN) |
88e89b8a | 937 | sv_setpv(sv,"IGNORE"); |
938 | else | |
3280af22 | 939 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 940 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 941 | SvTEMP_off(sv); |
942 | } | |
943 | } | |
944 | return 0; | |
945 | } | |
946 | int | |
8ac85365 | 947 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 948 | { |
949 | I32 i; | |
2d8e6c8d | 950 | STRLEN n_a; |
88e89b8a | 951 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 952 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 953 | if (i) { |
22c35a8c GS |
954 | if(PL_psig_ptr[i]) { |
955 | SvREFCNT_dec(PL_psig_ptr[i]); | |
956 | PL_psig_ptr[i]=0; | |
88e89b8a | 957 | } |
22c35a8c GS |
958 | if(PL_psig_name[i]) { |
959 | SvREFCNT_dec(PL_psig_name[i]); | |
960 | PL_psig_name[i]=0; | |
88e89b8a | 961 | } |
962 | } | |
963 | return 0; | |
964 | } | |
3d37d572 | 965 | |
85e6fe83 | 966 | int |
8ac85365 | 967 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 968 | { |
11343788 | 969 | dTHR; |
79072805 LW |
970 | register char *s; |
971 | I32 i; | |
748a9306 | 972 | SV** svp; |
e72dc28c | 973 | STRLEN len; |
a0d0e21e | 974 | |
e72dc28c | 975 | s = MgPV(mg,len); |
748a9306 LW |
976 | if (*s == '_') { |
977 | if (strEQ(s,"__DIE__")) | |
3280af22 | 978 | svp = &PL_diehook; |
748a9306 | 979 | else if (strEQ(s,"__WARN__")) |
3280af22 | 980 | svp = &PL_warnhook; |
748a9306 | 981 | else if (strEQ(s,"__PARSE__")) |
3280af22 | 982 | svp = &PL_parsehook; |
748a9306 LW |
983 | else |
984 | croak("No such hook: %s", s); | |
985 | i = 0; | |
4633a7c4 LW |
986 | if (*svp) { |
987 | SvREFCNT_dec(*svp); | |
988 | *svp = 0; | |
989 | } | |
748a9306 LW |
990 | } |
991 | else { | |
992 | i = whichsig(s); /* ...no, a brick */ | |
993 | if (!i) { | |
599cee73 PM |
994 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
995 | warner(WARN_SIGNAL, "No such signal: SIG%s", s); | |
748a9306 LW |
996 | return 0; |
997 | } | |
22c35a8c GS |
998 | SvREFCNT_dec(PL_psig_name[i]); |
999 | SvREFCNT_dec(PL_psig_ptr[i]); | |
1000 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 1001 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1002 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1003 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1004 | } |
a0d0e21e | 1005 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 1006 | if (i) |
3280af22 | 1007 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1008 | else |
1009 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
1010 | return 0; |
1011 | } | |
e72dc28c | 1012 | s = SvPV_force(sv,len); |
748a9306 LW |
1013 | if (strEQ(s,"IGNORE")) { |
1014 | if (i) | |
ff68c719 | 1015 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
1016 | else |
1017 | *svp = 0; | |
1018 | } | |
1019 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1020 | if (i) | |
ff68c719 | 1021 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
1022 | else |
1023 | *svp = 0; | |
1024 | } | |
79072805 | 1025 | else { |
5aabfad6 | 1026 | /* |
1027 | * We should warn if HINT_STRICT_REFS, but without | |
1028 | * access to a known hint bit in a known OP, we can't | |
1029 | * tell whether HINT_STRICT_REFS is in force or not. | |
1030 | */ | |
46fc3d4c | 1031 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1032 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1033 | if (i) |
3280af22 | 1034 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
1035 | else |
1036 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
1037 | } |
1038 | return 0; | |
1039 | } | |
1040 | ||
1041 | int | |
8ac85365 | 1042 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 1043 | { |
3280af22 | 1044 | PL_sub_generation++; |
463ee0b2 LW |
1045 | return 0; |
1046 | } | |
1047 | ||
1048 | int | |
8ac85365 | 1049 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 1050 | { |
a0d0e21e | 1051 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1052 | PL_amagic_generation++; |
463ee0b2 | 1053 | |
a0d0e21e LW |
1054 | return 0; |
1055 | } | |
463ee0b2 | 1056 | |
946ec16e | 1057 | int |
6ff81951 GS |
1058 | magic_getnkeys(SV *sv, MAGIC *mg) |
1059 | { | |
1060 | HV *hv = (HV*)LvTARG(sv); | |
1061 | HE *entry; | |
1062 | I32 i = 0; | |
1063 | ||
1064 | if (hv) { | |
1065 | (void) hv_iterinit(hv); | |
33c27489 | 1066 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
1067 | i = HvKEYS(hv); |
1068 | else { | |
1069 | /*SUPPRESS 560*/ | |
1070 | while (entry = hv_iternext(hv)) { | |
1071 | i++; | |
1072 | } | |
1073 | } | |
1074 | } | |
1075 | ||
1076 | sv_setiv(sv, (IV)i); | |
1077 | return 0; | |
1078 | } | |
1079 | ||
1080 | int | |
8ac85365 | 1081 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 1082 | { |
1083 | if (LvTARG(sv)) { | |
1084 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1085 | } |
1086 | return 0; | |
93965878 | 1087 | } |
946ec16e | 1088 | |
e336de0d | 1089 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1090 | STATIC int |
33c27489 | 1091 | magic_methcall(SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1092 | { |
1093 | dSP; | |
463ee0b2 | 1094 | |
924508f0 GS |
1095 | PUSHMARK(SP); |
1096 | EXTEND(SP, n); | |
33c27489 | 1097 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1098 | if (n > 1) { |
1099 | if (mg->mg_ptr) { | |
565764a8 | 1100 | if (mg->mg_len >= 0) |
79cb57f6 | 1101 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1102 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1103 | PUSHs((SV*)mg->mg_ptr); |
1104 | } | |
1105 | else if (mg->mg_type == 'p') { | |
565764a8 | 1106 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1107 | } |
1108 | } | |
1109 | if (n > 2) { | |
1110 | PUSHs(val); | |
88e89b8a | 1111 | } |
463ee0b2 LW |
1112 | PUTBACK; |
1113 | ||
93965878 | 1114 | return perl_call_method(meth, flags); |
946ec16e | 1115 | } |
1116 | ||
76e3520e | 1117 | STATIC int |
8ac85365 | 1118 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1119 | { |
1120 | dSP; | |
463ee0b2 | 1121 | |
a0d0e21e LW |
1122 | ENTER; |
1123 | SAVETMPS; | |
e788e7d3 | 1124 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1125 | |
33c27489 | 1126 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1127 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1128 | } |
463ee0b2 | 1129 | |
d3acc0f7 | 1130 | POPSTACK; |
a0d0e21e LW |
1131 | FREETMPS; |
1132 | LEAVE; | |
1133 | return 0; | |
1134 | } | |
463ee0b2 | 1135 | |
a0d0e21e | 1136 | int |
8ac85365 | 1137 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1138 | { |
1139 | magic_methpack(sv,mg,"FETCH"); | |
1140 | if (mg->mg_ptr) | |
1141 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1142 | return 0; |
1143 | } | |
1144 | ||
1145 | int | |
8ac85365 | 1146 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d GS |
1147 | { |
1148 | dSP; | |
a60c0954 | 1149 | ENTER; |
e788e7d3 | 1150 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1151 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1152 | POPSTACK; |
a60c0954 | 1153 | LEAVE; |
463ee0b2 LW |
1154 | return 0; |
1155 | } | |
1156 | ||
1157 | int | |
8ac85365 | 1158 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1159 | { |
a0d0e21e LW |
1160 | return magic_methpack(sv,mg,"DELETE"); |
1161 | } | |
463ee0b2 | 1162 | |
93965878 NIS |
1163 | |
1164 | U32 | |
1165 | magic_sizepack(SV *sv, MAGIC *mg) | |
1166 | { | |
e336de0d | 1167 | dSP; |
93965878 NIS |
1168 | U32 retval = 0; |
1169 | ||
1170 | ENTER; | |
1171 | SAVETMPS; | |
e788e7d3 | 1172 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1173 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1174 | sv = *PL_stack_sp--; |
a60c0954 | 1175 | retval = (U32) SvIV(sv)-1; |
93965878 | 1176 | } |
d3acc0f7 | 1177 | POPSTACK; |
93965878 NIS |
1178 | FREETMPS; |
1179 | LEAVE; | |
1180 | return retval; | |
1181 | } | |
1182 | ||
8ac85365 | 1183 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1184 | { |
1185 | dSP; | |
463ee0b2 | 1186 | |
e336de0d | 1187 | ENTER; |
e788e7d3 | 1188 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1189 | PUSHMARK(SP); |
33c27489 | 1190 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1191 | PUTBACK; |
a0d0e21e | 1192 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1193 | POPSTACK; |
a60c0954 | 1194 | LEAVE; |
463ee0b2 LW |
1195 | return 0; |
1196 | } | |
1197 | ||
1198 | int | |
8ac85365 | 1199 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1200 | { |
463ee0b2 | 1201 | dSP; |
a0d0e21e | 1202 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1203 | |
1204 | ENTER; | |
a0d0e21e | 1205 | SAVETMPS; |
e788e7d3 | 1206 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1207 | PUSHMARK(SP); |
1208 | EXTEND(SP, 2); | |
33c27489 | 1209 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1210 | if (SvOK(key)) |
1211 | PUSHs(key); | |
1212 | PUTBACK; | |
1213 | ||
a0d0e21e | 1214 | if (perl_call_method(meth, G_SCALAR)) |
3280af22 | 1215 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1216 | |
d3acc0f7 | 1217 | POPSTACK; |
a0d0e21e LW |
1218 | FREETMPS; |
1219 | LEAVE; | |
79072805 LW |
1220 | return 0; |
1221 | } | |
1222 | ||
1223 | int | |
8ac85365 | 1224 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1225 | { |
1226 | return magic_methpack(sv,mg,"EXISTS"); | |
1227 | } | |
1228 | ||
1229 | int | |
8ac85365 | 1230 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1231 | { |
11343788 | 1232 | dTHR; |
79072805 LW |
1233 | OP *o; |
1234 | I32 i; | |
1235 | GV* gv; | |
1236 | SV** svp; | |
2d8e6c8d | 1237 | STRLEN n_a; |
79072805 | 1238 | |
3280af22 | 1239 | gv = PL_DBline; |
79072805 | 1240 | i = SvTRUE(sv); |
188ea221 | 1241 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1242 | atoi(MgPV(mg,n_a)), FALSE); |
8990e307 | 1243 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1244 | o->op_private = i; |
79072805 LW |
1245 | else |
1246 | warn("Can't break at that line\n"); | |
1247 | return 0; | |
1248 | } | |
1249 | ||
1250 | int | |
8ac85365 | 1251 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1252 | { |
0f15f207 | 1253 | dTHR; |
3280af22 | 1254 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1255 | return 0; |
1256 | } | |
1257 | ||
1258 | int | |
8ac85365 | 1259 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1260 | { |
0f15f207 | 1261 | dTHR; |
3280af22 | 1262 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1263 | return 0; |
1264 | } | |
1265 | ||
1266 | int | |
8ac85365 | 1267 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1268 | { |
1269 | SV* lsv = LvTARG(sv); | |
1270 | ||
1271 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1272 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1273 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1274 | dTHR; |
a0ed51b3 LW |
1275 | I32 i = mg->mg_len; |
1276 | if (IN_UTF8) | |
1277 | sv_pos_b2u(lsv, &i); | |
1278 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1279 | return 0; |
1280 | } | |
1281 | } | |
1282 | (void)SvOK_off(sv); | |
1283 | return 0; | |
1284 | } | |
1285 | ||
1286 | int | |
8ac85365 | 1287 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1288 | { |
1289 | SV* lsv = LvTARG(sv); | |
1290 | SSize_t pos; | |
1291 | STRLEN len; | |
a0ed51b3 | 1292 | STRLEN ulen; |
c485e607 | 1293 | dTHR; |
a0d0e21e LW |
1294 | |
1295 | mg = 0; | |
1296 | ||
1297 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1298 | mg = mg_find(lsv, 'g'); | |
1299 | if (!mg) { | |
1300 | if (!SvOK(sv)) | |
1301 | return 0; | |
1302 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1303 | mg = mg_find(lsv, 'g'); | |
1304 | } | |
1305 | else if (!SvOK(sv)) { | |
565764a8 | 1306 | mg->mg_len = -1; |
a0d0e21e LW |
1307 | return 0; |
1308 | } | |
1309 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1310 | ||
c485e607 | 1311 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 LW |
1312 | |
1313 | if (IN_UTF8) { | |
1314 | ulen = sv_len_utf8(lsv); | |
1315 | if (ulen) | |
1316 | len = ulen; | |
1317 | else | |
1318 | ulen = 0; | |
1319 | } | |
1320 | ||
a0d0e21e LW |
1321 | if (pos < 0) { |
1322 | pos += len; | |
1323 | if (pos < 0) | |
1324 | pos = 0; | |
1325 | } | |
1326 | else if (pos > len) | |
1327 | pos = len; | |
a0ed51b3 LW |
1328 | |
1329 | if (ulen) { | |
1330 | I32 p = pos; | |
1331 | sv_pos_u2b(lsv, &p, 0); | |
1332 | pos = p; | |
1333 | } | |
1334 | ||
565764a8 | 1335 | mg->mg_len = pos; |
71be2cbc | 1336 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1337 | |
79072805 LW |
1338 | return 0; |
1339 | } | |
1340 | ||
1341 | int | |
8ac85365 | 1342 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1343 | { |
8646b087 | 1344 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1345 | SvFAKE_off(sv); | |
946ec16e | 1346 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1347 | SvFAKE_on(sv); |
1348 | } | |
1349 | else | |
946ec16e | 1350 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1351 | return 0; |
1352 | } | |
1353 | ||
1354 | int | |
8ac85365 | 1355 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1356 | { |
1357 | register char *s; | |
1358 | GV* gv; | |
2d8e6c8d | 1359 | STRLEN n_a; |
79072805 LW |
1360 | |
1361 | if (!SvOK(sv)) | |
1362 | return 0; | |
2d8e6c8d | 1363 | s = SvPV(sv, n_a); |
79072805 LW |
1364 | if (*s == '*' && s[1]) |
1365 | s++; | |
85e6fe83 | 1366 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1367 | if (sv == (SV*)gv) |
1368 | return 0; | |
1369 | if (GvGP(sv)) | |
88e89b8a | 1370 | gp_free((GV*)sv); |
79072805 | 1371 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1372 | return 0; |
1373 | } | |
1374 | ||
1375 | int | |
6ff81951 GS |
1376 | magic_getsubstr(SV *sv, MAGIC *mg) |
1377 | { | |
1378 | STRLEN len; | |
1379 | SV *lsv = LvTARG(sv); | |
1380 | char *tmps = SvPV(lsv,len); | |
1381 | I32 offs = LvTARGOFF(sv); | |
1382 | I32 rem = LvTARGLEN(sv); | |
1383 | ||
1384 | if (offs > len) | |
1385 | offs = len; | |
1386 | if (rem + offs > len) | |
1387 | rem = len - offs; | |
1388 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1389 | return 0; | |
1390 | } | |
1391 | ||
1392 | int | |
8ac85365 | 1393 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1394 | { |
8990e307 LW |
1395 | STRLEN len; |
1396 | char *tmps = SvPV(sv,len); | |
1397 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1398 | return 0; |
1399 | } | |
1400 | ||
1401 | int | |
8ac85365 | 1402 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1403 | { |
a863c7d1 | 1404 | dTHR; |
565764a8 DL |
1405 | TAINT_IF((mg->mg_len & 1) || |
1406 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1407 | return 0; |
1408 | } | |
1409 | ||
1410 | int | |
8ac85365 | 1411 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1412 | { |
11343788 | 1413 | dTHR; |
3280af22 NIS |
1414 | if (PL_localizing) { |
1415 | if (PL_localizing == 1) | |
565764a8 | 1416 | mg->mg_len <<= 1; |
748a9306 | 1417 | else |
565764a8 | 1418 | mg->mg_len >>= 1; |
a0d0e21e | 1419 | } |
3280af22 | 1420 | else if (PL_tainted) |
565764a8 | 1421 | mg->mg_len |= 1; |
748a9306 | 1422 | else |
565764a8 | 1423 | mg->mg_len &= ~1; |
463ee0b2 LW |
1424 | return 0; |
1425 | } | |
1426 | ||
1427 | int | |
6ff81951 GS |
1428 | magic_getvec(SV *sv, MAGIC *mg) |
1429 | { | |
1430 | SV *lsv = LvTARG(sv); | |
1431 | unsigned char *s; | |
1432 | unsigned long retnum; | |
1433 | STRLEN lsvlen; | |
1434 | I32 len; | |
1435 | I32 offset; | |
1436 | I32 size; | |
1437 | ||
1438 | if (!lsv) { | |
1439 | SvOK_off(sv); | |
1440 | return 0; | |
1441 | } | |
1442 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1443 | offset = LvTARGOFF(sv); | |
1444 | size = LvTARGLEN(sv); | |
1445 | len = (offset + size + 7) / 8; | |
1446 | ||
1447 | /* Copied from pp_vec() */ | |
1448 | ||
1449 | if (len > lsvlen) { | |
1450 | if (size <= 8) | |
1451 | retnum = 0; | |
1452 | else { | |
1453 | offset >>= 3; | |
1454 | if (size == 16) { | |
1455 | if (offset >= lsvlen) | |
1456 | retnum = 0; | |
1457 | else | |
1458 | retnum = (unsigned long) s[offset] << 8; | |
1459 | } | |
1460 | else if (size == 32) { | |
1461 | if (offset >= lsvlen) | |
1462 | retnum = 0; | |
1463 | else if (offset + 1 >= lsvlen) | |
1464 | retnum = (unsigned long) s[offset] << 24; | |
1465 | else if (offset + 2 >= lsvlen) | |
1466 | retnum = ((unsigned long) s[offset] << 24) + | |
1467 | ((unsigned long) s[offset + 1] << 16); | |
1468 | else | |
1469 | retnum = ((unsigned long) s[offset] << 24) + | |
1470 | ((unsigned long) s[offset + 1] << 16) + | |
1471 | (s[offset + 2] << 8); | |
1472 | } | |
1473 | } | |
1474 | } | |
1475 | else if (size < 8) | |
1476 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1477 | else { | |
1478 | offset >>= 3; | |
1479 | if (size == 8) | |
1480 | retnum = s[offset]; | |
1481 | else if (size == 16) | |
1482 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1483 | else if (size == 32) | |
1484 | retnum = ((unsigned long) s[offset] << 24) + | |
1485 | ((unsigned long) s[offset + 1] << 16) + | |
1486 | (s[offset + 2] << 8) + s[offset+3]; | |
1487 | } | |
1488 | ||
1489 | sv_setuv(sv, (UV)retnum); | |
1490 | return 0; | |
1491 | } | |
1492 | ||
1493 | int | |
8ac85365 | 1494 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1495 | { |
1496 | do_vecset(sv); /* XXX slurp this routine */ | |
1497 | return 0; | |
1498 | } | |
1499 | ||
1500 | int | |
8ac85365 | 1501 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1502 | { |
71be2cbc | 1503 | SV *targ = Nullsv; |
5f05dabc | 1504 | if (LvTARGLEN(sv)) { |
68dc0745 | 1505 | if (mg->mg_obj) { |
74e13ce4 GS |
1506 | SV *ahv = LvTARG(sv); |
1507 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1508 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1509 | if (he) | |
1510 | targ = HeVAL(he); | |
1511 | } | |
1512 | else { | |
1513 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1514 | if (svp) | |
1515 | targ = *svp; | |
1516 | } | |
68dc0745 | 1517 | } |
1518 | else { | |
3c78fafa | 1519 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1520 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1521 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1522 | } | |
3280af22 | 1523 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1524 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1525 | /* somebody else defined it for us */ |
1526 | SvREFCNT_dec(LvTARG(sv)); | |
1527 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1528 | LvTARGLEN(sv) = 0; | |
1529 | SvREFCNT_dec(mg->mg_obj); | |
1530 | mg->mg_obj = Nullsv; | |
1531 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1532 | } | |
5f05dabc | 1533 | } |
71be2cbc | 1534 | else |
1535 | targ = LvTARG(sv); | |
3280af22 | 1536 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1537 | return 0; |
1538 | } | |
1539 | ||
1540 | int | |
8ac85365 | 1541 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1542 | { |
1543 | if (LvTARGLEN(sv)) | |
68dc0745 | 1544 | vivify_defelem(sv); |
1545 | if (LvTARG(sv)) { | |
5f05dabc | 1546 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1547 | SvSETMAGIC(LvTARG(sv)); |
1548 | } | |
5f05dabc | 1549 | return 0; |
1550 | } | |
1551 | ||
71be2cbc | 1552 | void |
8ac85365 | 1553 | vivify_defelem(SV *sv) |
71be2cbc | 1554 | { |
e858de61 | 1555 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1556 | MAGIC *mg; |
1557 | SV *value = Nullsv; | |
71be2cbc | 1558 | |
68dc0745 | 1559 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1560 | return; |
68dc0745 | 1561 | if (mg->mg_obj) { |
74e13ce4 | 1562 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1563 | STRLEN n_a; |
74e13ce4 | 1564 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1565 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1566 | if (he) |
1567 | value = HeVAL(he); | |
1568 | } | |
1569 | else { | |
af7f9c15 | 1570 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1571 | if (svp) |
1572 | value = *svp; | |
1573 | } | |
3280af22 | 1574 | if (!value || value == &PL_sv_undef) |
2d8e6c8d | 1575 | croak(PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1576 | } |
68dc0745 | 1577 | else { |
1578 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1579 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1580 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1581 | else { | |
1582 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1583 | if (!svp || (value = *svp) == &PL_sv_undef) |
22c35a8c | 1584 | croak(PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1585 | } |
1586 | } | |
3e3baf6d | 1587 | (void)SvREFCNT_inc(value); |
68dc0745 | 1588 | SvREFCNT_dec(LvTARG(sv)); |
1589 | LvTARG(sv) = value; | |
71be2cbc | 1590 | LvTARGLEN(sv) = 0; |
68dc0745 | 1591 | SvREFCNT_dec(mg->mg_obj); |
1592 | mg->mg_obj = Nullsv; | |
1593 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1594 | } |
1595 | ||
1596 | int | |
810b8aa5 GS |
1597 | magic_killbackrefs(SV *sv, MAGIC *mg) |
1598 | { | |
1599 | AV *av = (AV*)mg->mg_obj; | |
1600 | SV **svp = AvARRAY(av); | |
1601 | I32 i = AvFILLp(av); | |
1602 | while (i >= 0) { | |
1603 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1604 | if (!SvWEAKREF(svp[i])) | |
1605 | croak("panic: magic_killbackrefs"); | |
1606 | /* XXX Should we check that it hasn't changed? */ | |
1607 | SvRV(svp[i]) = 0; | |
1608 | SvOK_off(svp[i]); | |
1609 | SvWEAKREF_off(svp[i]); | |
1610 | svp[i] = &PL_sv_undef; | |
1611 | } | |
1612 | i--; | |
1613 | } | |
1614 | return 0; | |
1615 | } | |
1616 | ||
1617 | int | |
8ac85365 | 1618 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1619 | { |
565764a8 | 1620 | mg->mg_len = -1; |
c6496cc7 | 1621 | SvSCREAM_off(sv); |
93a17b20 LW |
1622 | return 0; |
1623 | } | |
1624 | ||
1625 | int | |
8ac85365 | 1626 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1627 | { |
463ee0b2 | 1628 | sv_unmagic(sv, 'B'); |
79072805 LW |
1629 | SvVALID_off(sv); |
1630 | return 0; | |
1631 | } | |
1632 | ||
1633 | int | |
8ac85365 | 1634 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1635 | { |
1636 | sv_unmagic(sv, 'f'); | |
1637 | SvCOMPILED_off(sv); | |
1638 | return 0; | |
1639 | } | |
1640 | ||
1641 | int | |
8ac85365 | 1642 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1643 | { |
1644 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1645 | ||
1646 | if (uf && uf->uf_set) | |
1647 | (*uf->uf_set)(uf->uf_index, sv); | |
1648 | return 0; | |
1649 | } | |
1650 | ||
c277df42 IZ |
1651 | int |
1652 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1653 | { | |
1654 | regexp *re = (regexp *)mg->mg_obj; | |
1655 | ReREFCNT_dec(re); | |
1656 | return 0; | |
1657 | } | |
1658 | ||
7a4c00b4 | 1659 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1660 | int |
8ac85365 | 1661 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1662 | { |
1663 | /* | |
838b5b74 | 1664 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1665 | * and vanished with a faint plop. |
1666 | */ | |
7a4c00b4 | 1667 | if (mg->mg_ptr) { |
1668 | Safefree(mg->mg_ptr); | |
1669 | mg->mg_ptr = NULL; | |
565764a8 | 1670 | mg->mg_len = -1; |
7a4c00b4 | 1671 | } |
bbce6d69 | 1672 | return 0; |
1673 | } | |
7a4c00b4 | 1674 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1675 | |
1676 | int | |
8ac85365 | 1677 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1678 | { |
11343788 | 1679 | dTHR; |
79072805 LW |
1680 | register char *s; |
1681 | I32 i; | |
8990e307 | 1682 | STRLEN len; |
79072805 | 1683 | switch (*mg->mg_ptr) { |
748a9306 | 1684 | case '\001': /* ^A */ |
3280af22 | 1685 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1686 | break; |
599cee73 PM |
1687 | case '\002': /* ^B */ |
1688 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1689 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) | |
e24b16f9 | 1690 | PL_compiling.cop_warnings = WARN_ALL; |
599cee73 | 1691 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 | 1692 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 | 1693 | else { |
e24b16f9 GS |
1694 | if (PL_compiling.cop_warnings != WARN_NONE && |
1695 | PL_compiling.cop_warnings != WARN_ALL) | |
1696 | sv_setsv(PL_compiling.cop_warnings, sv); | |
599cee73 | 1697 | else |
e24b16f9 | 1698 | PL_compiling.cop_warnings = newSVsv(sv) ; |
599cee73 PM |
1699 | } |
1700 | } | |
1701 | break; | |
49460fe6 NIS |
1702 | |
1703 | case '\003': /* ^C */ | |
1704 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1705 | break; | |
1706 | ||
79072805 | 1707 | case '\004': /* ^D */ |
3280af22 | 1708 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1709 | DEBUG_x(dump_all()); |
1710 | break; | |
28f23441 | 1711 | case '\005': /* ^E */ |
1712 | #ifdef VMS | |
1713 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1714 | #else | |
22fae026 TM |
1715 | #ifdef WIN32 |
1716 | SetLastError( SvIV(sv) ); | |
1717 | #else | |
f86702cc | 1718 | /* will anyone ever use this? */ |
1719 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1720 | #endif |
22fae026 | 1721 | #endif |
28f23441 | 1722 | break; |
79072805 | 1723 | case '\006': /* ^F */ |
3280af22 | 1724 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1725 | break; |
a0d0e21e | 1726 | case '\010': /* ^H */ |
3280af22 | 1727 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1728 | break; |
9d116dd7 | 1729 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1730 | if (PL_inplace) |
1731 | Safefree(PL_inplace); | |
79072805 | 1732 | if (SvOK(sv)) |
2d8e6c8d | 1733 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1734 | else |
3280af22 | 1735 | PL_inplace = Nullch; |
79072805 | 1736 | break; |
28f23441 | 1737 | case '\017': /* ^O */ |
3280af22 NIS |
1738 | if (PL_osname) |
1739 | Safefree(PL_osname); | |
28f23441 | 1740 | if (SvOK(sv)) |
2d8e6c8d | 1741 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1742 | else |
3280af22 | 1743 | PL_osname = Nullch; |
28f23441 | 1744 | break; |
79072805 | 1745 | case '\020': /* ^P */ |
3280af22 | 1746 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1747 | break; |
1748 | case '\024': /* ^T */ | |
88e89b8a | 1749 | #ifdef BIG_TIME |
6b88bc9c | 1750 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1751 | #else |
3280af22 | 1752 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1753 | #endif |
79072805 LW |
1754 | break; |
1755 | case '\027': /* ^W */ | |
599cee73 PM |
1756 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1757 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1758 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; | |
1759 | } | |
79072805 LW |
1760 | break; |
1761 | case '.': | |
3280af22 NIS |
1762 | if (PL_localizing) { |
1763 | if (PL_localizing == 1) | |
1764 | save_sptr((SV**)&PL_last_in_gv); | |
748a9306 | 1765 | } |
3280af22 NIS |
1766 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1767 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1768 | break; |
1769 | case '^': | |
3280af22 | 1770 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1771 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1772 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1773 | break; |
1774 | case '~': | |
3280af22 | 1775 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1776 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1777 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1778 | break; |
1779 | case '=': | |
3280af22 | 1780 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1781 | break; |
1782 | case '-': | |
3280af22 NIS |
1783 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1784 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1785 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1786 | break; |
1787 | case '%': | |
3280af22 | 1788 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1789 | break; |
1790 | case '|': | |
4b65379b | 1791 | { |
3280af22 | 1792 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1793 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1794 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1795 | else { | |
1796 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1797 | PerlIO *ofp = IoOFP(io); | |
1798 | if (ofp) | |
1799 | (void)PerlIO_flush(ofp); | |
1800 | IoFLAGS(io) |= IOf_FLUSH; | |
1801 | } | |
1802 | } | |
79072805 LW |
1803 | } |
1804 | break; | |
1805 | case '*': | |
463ee0b2 | 1806 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1807 | PL_multiline = (i != 0); |
79072805 LW |
1808 | break; |
1809 | case '/': | |
3280af22 NIS |
1810 | SvREFCNT_dec(PL_nrs); |
1811 | PL_nrs = newSVsv(sv); | |
1812 | SvREFCNT_dec(PL_rs); | |
1813 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1814 | break; |
1815 | case '\\': | |
3280af22 NIS |
1816 | if (PL_ors) |
1817 | Safefree(PL_ors); | |
e3c19b7b | 1818 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 | 1819 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b | 1820 | else { |
3280af22 NIS |
1821 | PL_ors = Nullch; |
1822 | PL_orslen = 0; | |
e3c19b7b | 1823 | } |
79072805 LW |
1824 | break; |
1825 | case ',': | |
3280af22 NIS |
1826 | if (PL_ofs) |
1827 | Safefree(PL_ofs); | |
1828 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1829 | break; |
1830 | case '#': | |
3280af22 NIS |
1831 | if (PL_ofmt) |
1832 | Safefree(PL_ofmt); | |
2d8e6c8d | 1833 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1834 | break; |
1835 | case '[': | |
3280af22 | 1836 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1837 | break; |
1838 | case '?': | |
ff0cee69 | 1839 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1840 | if (PL_localizing == 2) { |
1841 | PL_statusvalue = LvTARGOFF(sv); | |
1842 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1843 | } |
1844 | else | |
1845 | #endif | |
1846 | #ifdef VMSISH_STATUS | |
1847 | if (VMSISH_STATUS) | |
1848 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1849 | else | |
1850 | #endif | |
1851 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1852 | break; |
1853 | case '!': | |
78987ded | 1854 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1855 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1856 | break; |
1857 | case '<': | |
3280af22 NIS |
1858 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1859 | if (PL_delaymagic) { | |
1860 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1861 | break; /* don't do magic till later */ |
1862 | } | |
1863 | #ifdef HAS_SETRUID | |
b28d0864 | 1864 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1865 | #else |
1866 | #ifdef HAS_SETREUID | |
3280af22 | 1867 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1868 | #else |
85e6fe83 | 1869 | #ifdef HAS_SETRESUID |
b28d0864 | 1870 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1871 | #else |
b28d0864 NIS |
1872 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1873 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1874 | else { |
b28d0864 | 1875 | PL_uid = (I32)PerlProc_getuid(); |
463ee0b2 | 1876 | croak("setruid() not implemented"); |
a0d0e21e | 1877 | } |
79072805 LW |
1878 | #endif |
1879 | #endif | |
85e6fe83 | 1880 | #endif |
3280af22 NIS |
1881 | PL_uid = (I32)PerlProc_getuid(); |
1882 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1883 | break; |
1884 | case '>': | |
3280af22 NIS |
1885 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1886 | if (PL_delaymagic) { | |
1887 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1888 | break; /* don't do magic till later */ |
1889 | } | |
1890 | #ifdef HAS_SETEUID | |
3280af22 | 1891 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1892 | #else |
1893 | #ifdef HAS_SETREUID | |
b28d0864 | 1894 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1895 | #else |
1896 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1897 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1898 | #else |
b28d0864 NIS |
1899 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1900 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1901 | else { |
b28d0864 | 1902 | PL_euid = (I32)PerlProc_geteuid(); |
463ee0b2 | 1903 | croak("seteuid() not implemented"); |
a0d0e21e | 1904 | } |
79072805 LW |
1905 | #endif |
1906 | #endif | |
85e6fe83 | 1907 | #endif |
3280af22 NIS |
1908 | PL_euid = (I32)PerlProc_geteuid(); |
1909 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1910 | break; |
1911 | case '(': | |
3280af22 NIS |
1912 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1913 | if (PL_delaymagic) { | |
1914 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1915 | break; /* don't do magic till later */ |
1916 | } | |
1917 | #ifdef HAS_SETRGID | |
b28d0864 | 1918 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1919 | #else |
1920 | #ifdef HAS_SETREGID | |
3280af22 | 1921 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1922 | #else |
1923 | #ifdef HAS_SETRESGID | |
b28d0864 | 1924 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1925 | #else |
b28d0864 NIS |
1926 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1927 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1928 | else { |
b28d0864 | 1929 | PL_gid = (I32)PerlProc_getgid(); |
463ee0b2 | 1930 | croak("setrgid() not implemented"); |
748a9306 | 1931 | } |
79072805 LW |
1932 | #endif |
1933 | #endif | |
85e6fe83 | 1934 | #endif |
3280af22 NIS |
1935 | PL_gid = (I32)PerlProc_getgid(); |
1936 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1937 | break; |
1938 | case ')': | |
5cd24f17 | 1939 | #ifdef HAS_SETGROUPS |
1940 | { | |
2d8e6c8d | 1941 | char *p = SvPV(sv, len); |
5cd24f17 | 1942 | Groups_t gary[NGROUPS]; |
1943 | ||
1944 | SET_NUMERIC_STANDARD(); | |
1945 | while (isSPACE(*p)) | |
1946 | ++p; | |
3280af22 | 1947 | PL_egid = I_V(atof(p)); |
5cd24f17 | 1948 | for (i = 0; i < NGROUPS; ++i) { |
1949 | while (*p && !isSPACE(*p)) | |
1950 | ++p; | |
1951 | while (isSPACE(*p)) | |
1952 | ++p; | |
1953 | if (!*p) | |
1954 | break; | |
1955 | gary[i] = I_V(atof(p)); | |
1956 | } | |
8cc95fdb | 1957 | if (i) |
1958 | (void)setgroups(i, gary); | |
5cd24f17 | 1959 | } |
1960 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1961 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1962 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1963 | if (PL_delaymagic) { |
1964 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1965 | break; /* don't do magic till later */ |
1966 | } | |
1967 | #ifdef HAS_SETEGID | |
3280af22 | 1968 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1969 | #else |
1970 | #ifdef HAS_SETREGID | |
b28d0864 | 1971 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1972 | #else |
1973 | #ifdef HAS_SETRESGID | |
b28d0864 | 1974 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1975 | #else |
b28d0864 NIS |
1976 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1977 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1978 | else { |
b28d0864 | 1979 | PL_egid = (I32)PerlProc_getegid(); |
463ee0b2 | 1980 | croak("setegid() not implemented"); |
748a9306 | 1981 | } |
79072805 LW |
1982 | #endif |
1983 | #endif | |
85e6fe83 | 1984 | #endif |
3280af22 NIS |
1985 | PL_egid = (I32)PerlProc_getegid(); |
1986 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1987 | break; |
1988 | case ':': | |
2d8e6c8d | 1989 | PL_chopset = SvPV_force(sv,len); |
79072805 LW |
1990 | break; |
1991 | case '0': | |
3280af22 NIS |
1992 | if (!PL_origalen) { |
1993 | s = PL_origargv[0]; | |
79072805 LW |
1994 | s += strlen(s); |
1995 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1996 | for (i = 1; i < PL_origargc; i++) { |
1997 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1998 | #ifdef OS2 |
6b88bc9c | 1999 | || PL_origargv[i] == s + 2 |
fb73857a | 2000 | #endif |
2001 | ) | |
379c4362 GS |
2002 | { |
2003 | ++s; | |
2004 | s += strlen(s); /* this one is ok too */ | |
2005 | } | |
fb73857a | 2006 | else |
2007 | break; | |
79072805 | 2008 | } |
bbce6d69 | 2009 | /* can grab env area too? */ |
3280af22 | 2010 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 2011 | #ifdef OS2 |
6b88bc9c | 2012 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 2013 | #endif |
2014 | )) { | |
66b1d557 | 2015 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 2016 | /* force copy of environment */ |
3280af22 | 2017 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
2018 | if (PL_origenviron[i] == s + 1) { |
2019 | ++s; | |
2020 | s += strlen(s); | |
2021 | } | |
fb73857a | 2022 | else |
2023 | break; | |
79072805 | 2024 | } |
3280af22 | 2025 | PL_origalen = s - PL_origargv[0]; |
79072805 | 2026 | } |
a0d0e21e | 2027 | s = SvPV_force(sv,len); |
8990e307 | 2028 | i = len; |
3280af22 NIS |
2029 | if (i >= PL_origalen) { |
2030 | i = PL_origalen; | |
fb73857a | 2031 | /* don't allow system to limit $0 seen by script */ |
2032 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
2033 | Copy(s, PL_origargv[0], i, char); |
2034 | s = PL_origargv[0]+i; | |
fb73857a | 2035 | *s = '\0'; |
79072805 LW |
2036 | } |
2037 | else { | |
3280af22 NIS |
2038 | Copy(s, PL_origargv[0], i, char); |
2039 | s = PL_origargv[0]+i; | |
79072805 | 2040 | *s++ = '\0'; |
3280af22 | 2041 | while (++i < PL_origalen) |
8990e307 | 2042 | *s++ = ' '; |
3280af22 NIS |
2043 | s = PL_origargv[0]+i; |
2044 | for (i = 1; i < PL_origargc; i++) | |
2045 | PL_origargv[i] = Nullch; | |
79072805 LW |
2046 | } |
2047 | break; | |
a863c7d1 MB |
2048 | #ifdef USE_THREADS |
2049 | case '@': | |
38a03e6e | 2050 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
2051 | break; |
2052 | #endif /* USE_THREADS */ | |
79072805 LW |
2053 | } |
2054 | return 0; | |
2055 | } | |
2056 | ||
f93b4edd MB |
2057 | #ifdef USE_THREADS |
2058 | int | |
8ac85365 | 2059 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
2060 | { |
2061 | dTHR; | |
8b73bbec | 2062 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 | 2063 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd MB |
2064 | if (MgOWNER(mg)) |
2065 | croak("panic: magic_mutexfree"); | |
2066 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
2067 | COND_DESTROY(MgCONDP(mg)); | |
2068 | return 0; | |
2069 | } | |
2070 | #endif /* USE_THREADS */ | |
2071 | ||
79072805 | 2072 | I32 |
8ac85365 | 2073 | whichsig(char *sig) |
79072805 LW |
2074 | { |
2075 | register char **sigv; | |
2076 | ||
22c35a8c | 2077 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2078 | if (strEQ(sig,*sigv)) |
22c35a8c | 2079 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2080 | #ifdef SIGCLD |
2081 | if (strEQ(sig,"CHLD")) | |
2082 | return SIGCLD; | |
2083 | #endif | |
2084 | #ifdef SIGCHLD | |
2085 | if (strEQ(sig,"CLD")) | |
2086 | return SIGCHLD; | |
2087 | #endif | |
2088 | return 0; | |
2089 | } | |
2090 | ||
84902520 TB |
2091 | static SV* sig_sv; |
2092 | ||
76e3520e | 2093 | STATIC void |
8ac85365 | 2094 | unwind_handler_stack(void *p) |
84902520 | 2095 | { |
ff26ac79 | 2096 | dTHR; |
84902520 TB |
2097 | U32 flags = *(U32*)p; |
2098 | ||
2099 | if (flags & 1) | |
3280af22 | 2100 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 TB |
2101 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2102 | if (flags & 64) | |
2103 | SvREFCNT_dec(sig_sv); | |
2104 | } | |
2105 | ||
ecfc5424 | 2106 | Signal_t |
8ac85365 | 2107 | sighandler(int sig) |
79072805 LW |
2108 | { |
2109 | dSP; | |
00d579c5 | 2110 | GV *gv = Nullgv; |
a0d0e21e | 2111 | HV *st; |
3280af22 | 2112 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2113 | CV *cv = Nullcv; |
533c011a | 2114 | OP *myop = PL_op; |
84902520 | 2115 | U32 flags = 0; |
3280af22 NIS |
2116 | I32 o_save_i = PL_savestack_ix, type; |
2117 | XPV *tXpv = PL_Xpv; | |
84902520 | 2118 | |
3280af22 | 2119 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2120 | flags |= 1; |
3280af22 | 2121 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2122 | flags |= 4; |
3280af22 | 2123 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2124 | flags |= 8; |
3280af22 | 2125 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2126 | flags |= 16; |
2127 | ||
22c35a8c | 2128 | if (!PL_psig_ptr[sig]) |
ff0cee69 | 2129 | die("Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2130 | PL_sig_name[sig]); |
ff0cee69 | 2131 | |
84902520 TB |
2132 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2133 | infinity, so we fix 4 (in fact 5): */ | |
2134 | if (flags & 1) { | |
3280af22 NIS |
2135 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2136 | o_save_i = PL_savestack_ix; | |
565764a8 | 2137 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2138 | } |
2139 | if (flags & 4) | |
3280af22 | 2140 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2141 | if (flags & 8) { |
3280af22 NIS |
2142 | PL_retstack_ix++; |
2143 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2144 | } |
2145 | if (flags & 16) | |
3280af22 | 2146 | PL_scopestack_ix += 1; |
84902520 | 2147 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2148 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2149 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2150 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2151 | |
a0d0e21e | 2152 | if (!cv || !CvROOT(cv)) { |
599cee73 PM |
2153 | if (ckWARN(WARN_SIGNAL)) |
2154 | warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", | |
22c35a8c | 2155 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2156 | : ((cv && CvGV(cv)) |
2157 | ? GvENAME(CvGV(cv)) | |
2158 | : "__ANON__"))); | |
2159 | goto cleanup; | |
79072805 LW |
2160 | } |
2161 | ||
22c35a8c GS |
2162 | if(PL_psig_name[sig]) { |
2163 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2164 | flags |= 64; |
2165 | sig_sv = sv; | |
2166 | } else { | |
ff0cee69 | 2167 | sv = sv_newmortal(); |
22c35a8c | 2168 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2169 | } |
e336de0d | 2170 | |
e788e7d3 | 2171 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2172 | PUSHMARK(SP); |
79072805 | 2173 | PUSHs(sv); |
79072805 | 2174 | PUTBACK; |
a0d0e21e LW |
2175 | |
2176 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 | 2177 | |
d3acc0f7 | 2178 | POPSTACK; |
00d579c5 | 2179 | cleanup: |
84902520 | 2180 | if (flags & 1) |
3280af22 | 2181 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2182 | if (flags & 4) |
3280af22 | 2183 | PL_markstack_ptr--; |
84902520 | 2184 | if (flags & 8) |
3280af22 | 2185 | PL_retstack_ix--; |
84902520 | 2186 | if (flags & 16) |
3280af22 | 2187 | PL_scopestack_ix -= 1; |
84902520 TB |
2188 | if (flags & 64) |
2189 | SvREFCNT_dec(sv); | |
533c011a | 2190 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2191 | |
3280af22 NIS |
2192 | PL_Sv = tSv; /* Restore global temporaries. */ |
2193 | PL_Xpv = tXpv; | |
79072805 LW |
2194 | return; |
2195 | } | |
4e35701f NIS |
2196 | |
2197 |