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