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" | |
864dbfa3 | 16 | #define PERL_IN_MG_C |
79072805 LW |
17 | #include "perl.h" |
18 | ||
e6d9441c | 19 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
20 | #ifdef I_UNISTD |
21 | # include <unistd.h> | |
22 | #endif | |
a0d0e21e | 23 | |
5cd24f17 | 24 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
25 | # ifndef NGROUPS |
26 | # define NGROUPS 32 | |
27 | # endif | |
28 | #endif | |
29 | ||
455ece5e AD |
30 | #ifdef PERL_OBJECT |
31 | # define VTBL this->*vtbl | |
32 | #else | |
33 | # define VTBL *vtbl | |
455ece5e AD |
34 | #endif |
35 | ||
51371543 GS |
36 | static void restore_magic(pTHXo_ void *p); |
37 | static void unwind_handler_stack(pTHXo_ void *p); | |
38 | ||
c07a80fd | 39 | /* |
40 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
41 | */ | |
42 | ||
43 | struct magic_state { | |
44 | SV* mgs_sv; | |
45 | U32 mgs_flags; | |
455ece5e | 46 | I32 mgs_ss_ix; |
c07a80fd | 47 | }; |
455ece5e | 48 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
49 | |
50 | STATIC void | |
cea2e8a9 | 51 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 52 | { |
46124e9e | 53 | dTHR; |
455ece5e | 54 | MGS* mgs; |
c07a80fd | 55 | assert(SvMAGICAL(sv)); |
56 | ||
51371543 | 57 | SAVEDESTRUCTOR(restore_magic, (void*)mgs_ix); |
455ece5e AD |
58 | |
59 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 60 | mgs->mgs_sv = sv; |
61 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 62 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 63 | |
64 | SvMAGICAL_off(sv); | |
65 | SvREADONLY_off(sv); | |
66 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 67 | } |
68 | ||
8990e307 | 69 | void |
864dbfa3 | 70 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 LW |
71 | { |
72 | MAGIC* mg; | |
73 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
74 | MGVTBL* vtbl = mg->mg_virtual; | |
75 | if (vtbl) { | |
76e3520e | 76 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
77 | SvGMAGICAL_on(sv); |
78 | if (vtbl->svt_set) | |
79 | SvSMAGICAL_on(sv); | |
76e3520e | 80 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 LW |
81 | SvRMAGICAL_on(sv); |
82 | } | |
83 | } | |
84 | } | |
85 | ||
79072805 | 86 | int |
864dbfa3 | 87 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 88 | { |
46124e9e | 89 | dTHR; |
455ece5e | 90 | I32 mgs_ix; |
79072805 | 91 | MAGIC* mg; |
c6496cc7 | 92 | MAGIC** mgp; |
760ac839 | 93 | int mgp_valid = 0; |
463ee0b2 | 94 | |
455ece5e AD |
95 | mgs_ix = SSNEW(sizeof(MGS)); |
96 | save_magic(mgs_ix, sv); | |
463ee0b2 | 97 | |
c6496cc7 | 98 | mgp = &SvMAGIC(sv); |
99 | while ((mg = *mgp) != 0) { | |
79072805 | 100 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e | 101 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
cea2e8a9 | 102 | (VTBL->svt_get)(aTHX_ sv, mg); |
c6496cc7 | 103 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
104 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
105 | (mg->mg_flags & MGf_GSKIP)) | |
455ece5e | 106 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 107 | } |
c6496cc7 | 108 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 109 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 110 | mgp = &mg->mg_moremagic; |
760ac839 LW |
111 | mgp_valid = 1; |
112 | } | |
113 | else | |
114 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 115 | } |
463ee0b2 | 116 | |
51371543 | 117 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
118 | return 0; |
119 | } | |
120 | ||
121 | int | |
864dbfa3 | 122 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 123 | { |
46124e9e | 124 | dTHR; |
455ece5e | 125 | I32 mgs_ix; |
79072805 | 126 | MAGIC* mg; |
463ee0b2 LW |
127 | MAGIC* nextmg; |
128 | ||
455ece5e AD |
129 | mgs_ix = SSNEW(sizeof(MGS)); |
130 | save_magic(mgs_ix, sv); | |
463ee0b2 LW |
131 | |
132 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 133 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 134 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
135 | if (mg->mg_flags & MGf_GSKIP) { |
136 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 137 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 138 | } |
76e3520e | 139 | if (vtbl && (vtbl->svt_set != NULL)) |
cea2e8a9 | 140 | (VTBL->svt_set)(aTHX_ sv, mg); |
79072805 | 141 | } |
463ee0b2 | 142 | |
51371543 | 143 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
144 | return 0; |
145 | } | |
146 | ||
147 | U32 | |
864dbfa3 | 148 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
149 | { |
150 | MAGIC* mg; | |
748a9306 | 151 | char *junk; |
463ee0b2 | 152 | STRLEN len; |
463ee0b2 | 153 | |
79072805 LW |
154 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
155 | MGVTBL* vtbl = mg->mg_virtual; | |
76e3520e | 156 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e | 157 | I32 mgs_ix; |
48e43a1c | 158 | |
455ece5e AD |
159 | mgs_ix = SSNEW(sizeof(MGS)); |
160 | save_magic(mgs_ix, sv); | |
a0d0e21e | 161 | /* omit MGf_GSKIP -- not changed here */ |
cea2e8a9 | 162 | len = (VTBL->svt_len)(aTHX_ sv, mg); |
51371543 | 163 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 LW |
164 | return len; |
165 | } | |
166 | } | |
167 | ||
748a9306 | 168 | junk = SvPV(sv, len); |
463ee0b2 | 169 | return len; |
79072805 LW |
170 | } |
171 | ||
93965878 | 172 | I32 |
864dbfa3 | 173 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
174 | { |
175 | MAGIC* mg; | |
176 | I32 len; | |
177 | ||
178 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
179 | MGVTBL* vtbl = mg->mg_virtual; | |
565764a8 | 180 | if (vtbl && (vtbl->svt_len != NULL)) { |
455ece5e AD |
181 | I32 mgs_ix; |
182 | ||
183 | mgs_ix = SSNEW(sizeof(MGS)); | |
184 | save_magic(mgs_ix, sv); | |
93965878 | 185 | /* omit MGf_GSKIP -- not changed here */ |
cea2e8a9 | 186 | len = (VTBL->svt_len)(aTHX_ sv, mg); |
51371543 | 187 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 NIS |
188 | return len; |
189 | } | |
190 | } | |
191 | ||
192 | switch(SvTYPE(sv)) { | |
193 | case SVt_PVAV: | |
194 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
195 | return len; | |
196 | case SVt_PVHV: | |
197 | /* FIXME */ | |
198 | default: | |
cea2e8a9 | 199 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
200 | break; |
201 | } | |
202 | return 0; | |
203 | } | |
204 | ||
79072805 | 205 | int |
864dbfa3 | 206 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 207 | { |
455ece5e | 208 | I32 mgs_ix; |
79072805 | 209 | MAGIC* mg; |
463ee0b2 | 210 | |
455ece5e AD |
211 | mgs_ix = SSNEW(sizeof(MGS)); |
212 | save_magic(mgs_ix, sv); | |
463ee0b2 | 213 | |
79072805 LW |
214 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
215 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
216 | /* omit GSKIP -- never set here */ |
217 | ||
76e3520e | 218 | if (vtbl && (vtbl->svt_clear != NULL)) |
cea2e8a9 | 219 | (VTBL->svt_clear)(aTHX_ sv, mg); |
79072805 | 220 | } |
463ee0b2 | 221 | |
51371543 | 222 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 LW |
223 | return 0; |
224 | } | |
225 | ||
93a17b20 | 226 | MAGIC* |
864dbfa3 | 227 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 LW |
228 | { |
229 | MAGIC* mg; | |
93a17b20 LW |
230 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
231 | if (mg->mg_type == type) | |
232 | return mg; | |
233 | } | |
234 | return 0; | |
235 | } | |
236 | ||
79072805 | 237 | int |
864dbfa3 | 238 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 239 | { |
463ee0b2 | 240 | int count = 0; |
79072805 | 241 | MAGIC* mg; |
463ee0b2 LW |
242 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
243 | if (isUPPER(mg->mg_type)) { | |
33c27489 GS |
244 | sv_magic(nsv, |
245 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj, | |
246 | toLOWER(mg->mg_type), key, klen); | |
463ee0b2 | 247 | count++; |
79072805 | 248 | } |
79072805 | 249 | } |
463ee0b2 | 250 | return count; |
79072805 LW |
251 | } |
252 | ||
253 | int | |
864dbfa3 | 254 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
255 | { |
256 | MAGIC* mg; | |
257 | MAGIC* moremagic; | |
258 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
259 | MGVTBL* vtbl = mg->mg_virtual; | |
260 | moremagic = mg->mg_moremagic; | |
76e3520e | 261 | if (vtbl && (vtbl->svt_free != NULL)) |
cea2e8a9 | 262 | (VTBL->svt_free)(aTHX_ sv, mg); |
93a17b20 | 263 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 264 | if (mg->mg_len >= 0) |
88e89b8a | 265 | Safefree(mg->mg_ptr); |
565764a8 | 266 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 267 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 268 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 269 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
270 | Safefree(mg); |
271 | } | |
272 | SvMAGIC(sv) = 0; | |
273 | return 0; | |
274 | } | |
275 | ||
276 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
277 | #include <signal.h> | |
278 | #endif | |
279 | ||
942e002e | 280 | U32 |
864dbfa3 | 281 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
282 | { |
283 | dTHR; | |
284 | register char *s; | |
285 | register I32 i; | |
286 | register REGEXP *rx; | |
287 | char *t; | |
288 | ||
8f580fb8 IZ |
289 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
290 | if (mg->mg_obj) /* @+ */ | |
291 | return rx->nparens; | |
292 | else /* @- */ | |
293 | return rx->lastparen; | |
294 | } | |
295 | ||
942e002e | 296 | return (U32)-1; |
6cef1e77 IZ |
297 | } |
298 | ||
299 | int | |
864dbfa3 | 300 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 IZ |
301 | { |
302 | dTHR; | |
303 | register I32 paren; | |
cf93c79d | 304 | register I32 s; |
6cef1e77 IZ |
305 | register I32 i; |
306 | register REGEXP *rx; | |
cf93c79d | 307 | I32 t; |
6cef1e77 IZ |
308 | |
309 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
310 | paren = mg->mg_len; | |
311 | if (paren < 0) | |
312 | return 0; | |
313 | if (paren <= rx->nparens && | |
cf93c79d IZ |
314 | (s = rx->startp[paren]) != -1 && |
315 | (t = rx->endp[paren]) != -1) | |
6cef1e77 IZ |
316 | { |
317 | if (mg->mg_obj) /* @+ */ | |
cf93c79d | 318 | i = t; |
6cef1e77 | 319 | else /* @- */ |
cf93c79d | 320 | i = s; |
6cef1e77 IZ |
321 | sv_setiv(sv,i); |
322 | } | |
323 | } | |
324 | return 0; | |
325 | } | |
326 | ||
93a17b20 | 327 | U32 |
864dbfa3 | 328 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 329 | { |
a863c7d1 | 330 | dTHR; |
93a17b20 LW |
331 | register I32 paren; |
332 | register char *s; | |
333 | register I32 i; | |
d9f97599 | 334 | register REGEXP *rx; |
748a9306 | 335 | char *t; |
93a17b20 LW |
336 | |
337 | switch (*mg->mg_ptr) { | |
338 | case '1': case '2': case '3': case '4': | |
339 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 340 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
341 | I32 s1, t1; |
342 | ||
93a17b20 LW |
343 | paren = atoi(mg->mg_ptr); |
344 | getparen: | |
d9f97599 | 345 | if (paren <= rx->nparens && |
cf93c79d IZ |
346 | (s1 = rx->startp[paren]) != -1 && |
347 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 348 | { |
cf93c79d | 349 | i = t1 - s1; |
71be2cbc | 350 | if (i >= 0) |
93a17b20 | 351 | return i; |
93a17b20 | 352 | } |
93a17b20 | 353 | } |
748a9306 | 354 | return 0; |
93a17b20 | 355 | case '+': |
3280af22 | 356 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 357 | paren = rx->lastparen; |
13f57bf8 CS |
358 | if (paren) |
359 | goto getparen; | |
93a17b20 | 360 | } |
748a9306 | 361 | return 0; |
93a17b20 | 362 | case '`': |
3280af22 | 363 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
364 | if (rx->startp[0] != -1) { |
365 | i = rx->startp[0]; | |
71be2cbc | 366 | if (i >= 0) |
93a17b20 | 367 | return i; |
93a17b20 | 368 | } |
93a17b20 | 369 | } |
748a9306 | 370 | return 0; |
93a17b20 | 371 | case '\'': |
3280af22 | 372 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
373 | if (rx->endp[0] != -1) { |
374 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 375 | if (i >= 0) |
5cd24f17 | 376 | return i; |
93a17b20 | 377 | } |
93a17b20 | 378 | } |
748a9306 | 379 | return 0; |
93a17b20 | 380 | case ',': |
3280af22 | 381 | return (STRLEN)PL_ofslen; |
93a17b20 | 382 | case '\\': |
3280af22 | 383 | return (STRLEN)PL_orslen; |
93a17b20 LW |
384 | } |
385 | magic_get(sv,mg); | |
2d8e6c8d GS |
386 | if (!SvPOK(sv) && SvNIOK(sv)) { |
387 | STRLEN n_a; | |
388 | sv_2pv(sv, &n_a); | |
389 | } | |
93a17b20 LW |
390 | if (SvPOK(sv)) |
391 | return SvCUR(sv); | |
392 | return 0; | |
393 | } | |
394 | ||
79072805 | 395 | int |
864dbfa3 | 396 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 397 | { |
a863c7d1 | 398 | dTHR; |
79072805 LW |
399 | register I32 paren; |
400 | register char *s; | |
401 | register I32 i; | |
d9f97599 | 402 | register REGEXP *rx; |
748a9306 | 403 | char *t; |
79072805 LW |
404 | |
405 | switch (*mg->mg_ptr) { | |
748a9306 | 406 | case '\001': /* ^A */ |
3280af22 | 407 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 408 | break; |
599cee73 | 409 | case '\002': /* ^B */ |
0453d815 PM |
410 | if (PL_curcop->cop_warnings == WARN_NONE || |
411 | PL_curcop->cop_warnings == WARN_STD) | |
412 | { | |
599cee73 | 413 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
0453d815 PM |
414 | } |
415 | else if (PL_curcop->cop_warnings == WARN_ALL) { | |
599cee73 | 416 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
0453d815 PM |
417 | } |
418 | else { | |
e24b16f9 | 419 | sv_setsv(sv, PL_curcop->cop_warnings); |
0453d815 | 420 | } |
599cee73 | 421 | break; |
49460fe6 NIS |
422 | case '\003': /* ^C */ |
423 | sv_setiv(sv, (IV)PL_minus_c); | |
424 | break; | |
425 | ||
79072805 | 426 | case '\004': /* ^D */ |
3280af22 | 427 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 | 428 | break; |
28f23441 | 429 | case '\005': /* ^E */ |
430 | #ifdef VMS | |
431 | { | |
432 | # include <descrip.h> | |
433 | # include <starlet.h> | |
434 | char msg[255]; | |
435 | $DESCRIPTOR(msgdsc,msg); | |
65202027 | 436 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 | 437 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
438 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
439 | else | |
440 | sv_setpv(sv,""); | |
441 | } | |
442 | #else | |
88e89b8a | 443 | #ifdef OS2 |
fb73857a | 444 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 | 445 | sv_setnv(sv, (NV)errno); |
fb73857a | 446 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
447 | } else { | |
017f25f1 IZ |
448 | if (errno != errno_isOS2) { |
449 | int tmp = _syserrno(); | |
450 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
451 | Perl_rc = tmp; | |
452 | } | |
65202027 | 453 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a | 454 | sv_setpv(sv, os2error(Perl_rc)); |
455 | } | |
88e89b8a | 456 | #else |
22fae026 TM |
457 | #ifdef WIN32 |
458 | { | |
459 | DWORD dwErr = GetLastError(); | |
65202027 | 460 | sv_setnv(sv, (NV)dwErr); |
22fae026 | 461 | if (dwErr) |
76e3520e | 462 | { |
0cb96387 | 463 | PerlProc_GetOSError(sv, dwErr); |
76e3520e | 464 | } |
22fae026 TM |
465 | else |
466 | sv_setpv(sv, ""); | |
467 | SetLastError(dwErr); | |
468 | } | |
469 | #else | |
65202027 | 470 | sv_setnv(sv, (NV)errno); |
28f23441 | 471 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
472 | #endif | |
88e89b8a | 473 | #endif |
22fae026 | 474 | #endif |
946ec16e | 475 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 476 | break; |
79072805 | 477 | case '\006': /* ^F */ |
3280af22 | 478 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 479 | break; |
a0d0e21e | 480 | case '\010': /* ^H */ |
3280af22 | 481 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 482 | break; |
9d116dd7 | 483 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
484 | if (PL_inplace) |
485 | sv_setpv(sv, PL_inplace); | |
79072805 | 486 | else |
3280af22 | 487 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 488 | break; |
28f23441 | 489 | case '\017': /* ^O */ |
3280af22 | 490 | sv_setpv(sv, PL_osname); |
28f23441 | 491 | break; |
79072805 | 492 | case '\020': /* ^P */ |
3280af22 | 493 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 494 | break; |
fb73857a | 495 | case '\023': /* ^S */ |
d58bf5aa MB |
496 | { |
497 | dTHR; | |
3280af22 | 498 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 499 | SvOK_off(sv); |
3280af22 | 500 | else if (PL_in_eval) |
d58bf5aa MB |
501 | sv_setiv(sv, 1); |
502 | else | |
503 | sv_setiv(sv, 0); | |
504 | } | |
fb73857a | 505 | break; |
79072805 | 506 | case '\024': /* ^T */ |
88e89b8a | 507 | #ifdef BIG_TIME |
6b88bc9c | 508 | sv_setnv(sv, PL_basetime); |
88e89b8a | 509 | #else |
3280af22 | 510 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 511 | #endif |
79072805 LW |
512 | break; |
513 | case '\027': /* ^W */ | |
0453d815 | 514 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
79072805 LW |
515 | break; |
516 | case '1': case '2': case '3': case '4': | |
517 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 518 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
519 | I32 s1, t1; |
520 | ||
a863c7d1 MB |
521 | /* |
522 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
523 | * XXX Does the new way break anything? | |
524 | */ | |
525 | paren = atoi(mg->mg_ptr); | |
79072805 | 526 | getparen: |
d9f97599 | 527 | if (paren <= rx->nparens && |
cf93c79d IZ |
528 | (s1 = rx->startp[paren]) != -1 && |
529 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 530 | { |
cf93c79d IZ |
531 | i = t1 - s1; |
532 | s = rx->subbeg + s1; | |
13f57bf8 | 533 | getrx: |
748a9306 | 534 | if (i >= 0) { |
13f57bf8 | 535 | bool was_tainted; |
3280af22 NIS |
536 | if (PL_tainting) { |
537 | was_tainted = PL_tainted; | |
538 | PL_tainted = FALSE; | |
13f57bf8 | 539 | } |
cf93c79d | 540 | sv_setpvn(sv, s, i); |
3280af22 NIS |
541 | if (PL_tainting) |
542 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
543 | break; |
544 | } | |
79072805 | 545 | } |
79072805 | 546 | } |
3280af22 | 547 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
548 | break; |
549 | case '+': | |
3280af22 | 550 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 551 | paren = rx->lastparen; |
a0d0e21e LW |
552 | if (paren) |
553 | goto getparen; | |
79072805 | 554 | } |
3280af22 | 555 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
556 | break; |
557 | case '`': | |
3280af22 | 558 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
559 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
560 | i = rx->startp[0]; | |
13f57bf8 | 561 | goto getrx; |
79072805 | 562 | } |
79072805 | 563 | } |
3280af22 | 564 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
565 | break; |
566 | case '\'': | |
3280af22 | 567 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d IZ |
568 | if (rx->subbeg && rx->endp[0] != -1) { |
569 | s = rx->subbeg + rx->endp[0]; | |
570 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 571 | goto getrx; |
79072805 | 572 | } |
79072805 | 573 | } |
3280af22 | 574 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
575 | break; |
576 | case '.': | |
577 | #ifndef lint | |
3280af22 NIS |
578 | if (GvIO(PL_last_in_gv)) { |
579 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
580 | } |
581 | #endif | |
582 | break; | |
583 | case '?': | |
809a5acc | 584 | { |
809a5acc | 585 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 586 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
587 | LvTARGOFF(sv) = PL_statusvalue; |
588 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 589 | #endif |
809a5acc | 590 | } |
79072805 LW |
591 | break; |
592 | case '^': | |
3280af22 | 593 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
594 | if (s) |
595 | sv_setpv(sv,s); | |
596 | else { | |
3280af22 | 597 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
598 | sv_catpv(sv,"_TOP"); |
599 | } | |
600 | break; | |
601 | case '~': | |
3280af22 | 602 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 603 | if (!s) |
3280af22 | 604 | s = GvENAME(PL_defoutgv); |
79072805 LW |
605 | sv_setpv(sv,s); |
606 | break; | |
607 | #ifndef lint | |
608 | case '=': | |
3280af22 | 609 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
610 | break; |
611 | case '-': | |
3280af22 | 612 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
613 | break; |
614 | case '%': | |
3280af22 | 615 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
616 | break; |
617 | #endif | |
618 | case ':': | |
619 | break; | |
620 | case '/': | |
621 | break; | |
622 | case '[': | |
3280af22 | 623 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
624 | break; |
625 | case '|': | |
3280af22 | 626 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
627 | break; |
628 | case ',': | |
3280af22 | 629 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
630 | break; |
631 | case '\\': | |
3280af22 | 632 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
633 | break; |
634 | case '#': | |
3280af22 | 635 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
636 | break; |
637 | case '!': | |
a5f75d66 | 638 | #ifdef VMS |
65202027 | 639 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 640 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 641 | #else |
88e89b8a | 642 | { |
643 | int saveerrno = errno; | |
65202027 | 644 | sv_setnv(sv, (NV)errno); |
88e89b8a | 645 | #ifdef OS2 |
646 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
647 | else | |
a5f75d66 | 648 | #endif |
2304df62 | 649 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 650 | errno = saveerrno; |
651 | } | |
652 | #endif | |
946ec16e | 653 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
654 | break; |
655 | case '<': | |
3280af22 | 656 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
657 | break; |
658 | case '>': | |
3280af22 | 659 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
660 | break; |
661 | case '(': | |
3280af22 | 662 | sv_setiv(sv, (IV)PL_gid); |
cea2e8a9 | 663 | Perl_sv_setpvf(aTHX_ sv, "%Vd", (IV)PL_gid); |
79072805 LW |
664 | goto add_groups; |
665 | case ')': | |
3280af22 | 666 | sv_setiv(sv, (IV)PL_egid); |
cea2e8a9 | 667 | Perl_sv_setpvf(aTHX_ sv, "%Vd", (IV)PL_egid); |
79072805 | 668 | add_groups: |
79072805 | 669 | #ifdef HAS_GETGROUPS |
79072805 | 670 | { |
a0d0e21e | 671 | Groups_t gary[NGROUPS]; |
79072805 | 672 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 673 | while (--i >= 0) |
cea2e8a9 | 674 | Perl_sv_catpvf(aTHX_ sv, " %Vd", (IV)gary[i]); |
79072805 LW |
675 | } |
676 | #endif | |
29355cf7 | 677 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
678 | break; |
679 | case '*': | |
680 | break; | |
681 | case '0': | |
682 | break; | |
a863c7d1 MB |
683 | #ifdef USE_THREADS |
684 | case '@': | |
38a03e6e | 685 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
686 | break; |
687 | #endif /* USE_THREADS */ | |
79072805 | 688 | } |
a0d0e21e | 689 | return 0; |
79072805 LW |
690 | } |
691 | ||
692 | int | |
864dbfa3 | 693 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
694 | { |
695 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
696 | ||
697 | if (uf && uf->uf_val) | |
698 | (*uf->uf_val)(uf->uf_index, sv); | |
699 | return 0; | |
700 | } | |
701 | ||
702 | int | |
864dbfa3 | 703 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
704 | { |
705 | register char *s; | |
88e89b8a | 706 | char *ptr; |
5aabfad6 | 707 | STRLEN len, klen; |
a0d0e21e | 708 | I32 i; |
1e422769 | 709 | |
a0d0e21e | 710 | s = SvPV(sv,len); |
5aabfad6 | 711 | ptr = MgPV(mg,klen); |
88e89b8a | 712 | my_setenv(ptr, s); |
1e422769 | 713 | |
a0d0e21e LW |
714 | #ifdef DYNAMIC_ENV_FETCH |
715 | /* We just undefd an environment var. Is a replacement */ | |
716 | /* waiting in the wings? */ | |
717 | if (!len) { | |
5aabfad6 | 718 | SV **valp; |
6b88bc9c | 719 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 720 | s = SvPV(*valp, len); |
a0d0e21e LW |
721 | } |
722 | #endif | |
1e422769 | 723 | |
39e571d4 | 724 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
725 | /* And you'll never guess what the dog had */ |
726 | /* in its mouth... */ | |
3280af22 | 727 | if (PL_tainting) { |
1e422769 | 728 | MgTAINTEDDIR_off(mg); |
729 | #ifdef VMS | |
5aabfad6 | 730 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 731 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
732 | struct stat sbuf; | |
733 | int i = 0, j = 0; | |
734 | ||
735 | do { /* DCL$PATH may be a search list */ | |
736 | while (1) { /* as may dev portion of any element */ | |
737 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
738 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
739 | cando_by_name(S_IWUSR,0,elt) ) { | |
740 | MgTAINTEDDIR_on(mg); | |
741 | return 0; | |
742 | } | |
743 | } | |
744 | if ((cp = strchr(elt, ':')) != Nullch) | |
745 | *cp = '\0'; | |
746 | if (my_trnlnm(elt, eltbuf, j++)) | |
747 | elt = eltbuf; | |
748 | else | |
749 | break; | |
750 | } | |
751 | j = 0; | |
752 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
753 | } | |
754 | #endif /* VMS */ | |
5aabfad6 | 755 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 756 | char *strend = s + len; |
463ee0b2 LW |
757 | |
758 | while (s < strend) { | |
96827780 | 759 | char tmpbuf[256]; |
1e422769 | 760 | struct stat st; |
96827780 | 761 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 762 | s, strend, ':', &i); |
463ee0b2 | 763 | s++; |
96827780 MB |
764 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
765 | || *tmpbuf != '/' | |
c6ed36e1 | 766 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 767 | MgTAINTEDDIR_on(mg); |
1e422769 | 768 | return 0; |
769 | } | |
463ee0b2 | 770 | } |
79072805 LW |
771 | } |
772 | } | |
39e571d4 | 773 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 774 | |
79072805 LW |
775 | return 0; |
776 | } | |
777 | ||
778 | int | |
864dbfa3 | 779 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 780 | { |
2d8e6c8d GS |
781 | STRLEN n_a; |
782 | my_setenv(MgPV(mg,n_a),Nullch); | |
85e6fe83 LW |
783 | return 0; |
784 | } | |
785 | ||
88e89b8a | 786 | int |
864dbfa3 | 787 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 788 | { |
789 | #if defined(VMS) | |
cea2e8a9 | 790 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 791 | #else |
d58bf5aa | 792 | dTHR; |
3280af22 | 793 | if (PL_localizing) { |
fb73857a | 794 | HE* entry; |
2d8e6c8d | 795 | STRLEN n_a; |
fb73857a | 796 | magic_clear_all_env(sv,mg); |
797 | hv_iterinit((HV*)sv); | |
798 | while (entry = hv_iternext((HV*)sv)) { | |
799 | I32 keylen; | |
800 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 801 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 802 | } |
803 | } | |
804 | #endif | |
805 | return 0; | |
806 | } | |
807 | ||
808 | int | |
864dbfa3 | 809 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 810 | { |
3e3baf6d | 811 | #if defined(VMS) |
cea2e8a9 | 812 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 813 | #else |
f2517201 | 814 | # ifdef WIN32 |
3e3baf6d TB |
815 | char *envv = GetEnvironmentStrings(); |
816 | char *cur = envv; | |
817 | STRLEN len; | |
818 | while (*cur) { | |
819 | char *end = strchr(cur,'='); | |
820 | if (end && end != cur) { | |
821 | *end = '\0'; | |
822 | my_setenv(cur,Nullch); | |
823 | *end = '='; | |
ac5c734f | 824 | cur = end + strlen(end+1)+2; |
3e3baf6d TB |
825 | } |
826 | else if ((len = strlen(cur))) | |
827 | cur += len+1; | |
828 | } | |
829 | FreeEnvironmentStrings(envv); | |
f2517201 | 830 | # else |
2c2d71f5 JH |
831 | # ifdef CYGWIN |
832 | I32 i; | |
833 | for (i = 0; environ[i]; i++) | |
834 | Safefree(environ[i]); | |
835 | # else | |
836 | # ifndef PERL_USE_SAFE_PUTENV | |
66b1d557 HM |
837 | I32 i; |
838 | ||
3280af22 | 839 | if (environ == PL_origenviron) |
f2517201 | 840 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
841 | else |
842 | for (i = 0; environ[i]; i++) | |
f2517201 | 843 | safesysfree(environ[i]); |
2c2d71f5 JH |
844 | # endif /* PERL_USE_SAFE_PUTENV */ |
845 | # endif /* CYGWIN */ | |
f2517201 | 846 | |
66b1d557 HM |
847 | environ[0] = Nullch; |
848 | ||
f2517201 GS |
849 | # endif /* WIN32 */ |
850 | #endif /* VMS */ | |
3e3baf6d | 851 | return 0; |
66b1d557 HM |
852 | } |
853 | ||
854 | int | |
864dbfa3 | 855 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 856 | { |
857 | I32 i; | |
2d8e6c8d | 858 | STRLEN n_a; |
88e89b8a | 859 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 860 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 861 | if (i) { |
22c35a8c GS |
862 | if(PL_psig_ptr[i]) |
863 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 864 | else { |
ff68c719 | 865 | Sighandler_t sigstate = rsignal_state(i); |
866 | ||
88e89b8a | 867 | /* cache state so we don't fetch it again */ |
ff68c719 | 868 | if(sigstate == SIG_IGN) |
88e89b8a | 869 | sv_setpv(sv,"IGNORE"); |
870 | else | |
3280af22 | 871 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 872 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 873 | SvTEMP_off(sv); |
874 | } | |
875 | } | |
876 | return 0; | |
877 | } | |
878 | int | |
864dbfa3 | 879 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 880 | { |
881 | I32 i; | |
2d8e6c8d | 882 | STRLEN n_a; |
88e89b8a | 883 | /* Are we clearing a signal entry? */ |
2d8e6c8d | 884 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a | 885 | if (i) { |
22c35a8c GS |
886 | if(PL_psig_ptr[i]) { |
887 | SvREFCNT_dec(PL_psig_ptr[i]); | |
888 | PL_psig_ptr[i]=0; | |
88e89b8a | 889 | } |
22c35a8c GS |
890 | if(PL_psig_name[i]) { |
891 | SvREFCNT_dec(PL_psig_name[i]); | |
892 | PL_psig_name[i]=0; | |
88e89b8a | 893 | } |
894 | } | |
895 | return 0; | |
896 | } | |
3d37d572 | 897 | |
85e6fe83 | 898 | int |
864dbfa3 | 899 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 900 | { |
11343788 | 901 | dTHR; |
79072805 LW |
902 | register char *s; |
903 | I32 i; | |
748a9306 | 904 | SV** svp; |
e72dc28c | 905 | STRLEN len; |
a0d0e21e | 906 | |
e72dc28c | 907 | s = MgPV(mg,len); |
748a9306 LW |
908 | if (*s == '_') { |
909 | if (strEQ(s,"__DIE__")) | |
3280af22 | 910 | svp = &PL_diehook; |
748a9306 | 911 | else if (strEQ(s,"__WARN__")) |
3280af22 | 912 | svp = &PL_warnhook; |
748a9306 | 913 | else if (strEQ(s,"__PARSE__")) |
3280af22 | 914 | svp = &PL_parsehook; |
748a9306 | 915 | else |
cea2e8a9 | 916 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 917 | i = 0; |
4633a7c4 LW |
918 | if (*svp) { |
919 | SvREFCNT_dec(*svp); | |
920 | *svp = 0; | |
921 | } | |
748a9306 LW |
922 | } |
923 | else { | |
924 | i = whichsig(s); /* ...no, a brick */ | |
925 | if (!i) { | |
599cee73 | 926 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
cea2e8a9 | 927 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 LW |
928 | return 0; |
929 | } | |
22c35a8c GS |
930 | SvREFCNT_dec(PL_psig_name[i]); |
931 | SvREFCNT_dec(PL_psig_ptr[i]); | |
932 | PL_psig_ptr[i] = SvREFCNT_inc(sv); | |
88e89b8a | 933 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 934 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 935 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 936 | } |
a0d0e21e | 937 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 938 | if (i) |
3280af22 | 939 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
940 | else |
941 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
942 | return 0; |
943 | } | |
e72dc28c | 944 | s = SvPV_force(sv,len); |
748a9306 LW |
945 | if (strEQ(s,"IGNORE")) { |
946 | if (i) | |
ff68c719 | 947 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
948 | else |
949 | *svp = 0; | |
950 | } | |
951 | else if (strEQ(s,"DEFAULT") || !*s) { | |
952 | if (i) | |
ff68c719 | 953 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
954 | else |
955 | *svp = 0; | |
956 | } | |
79072805 | 957 | else { |
5aabfad6 | 958 | /* |
959 | * We should warn if HINT_STRICT_REFS, but without | |
960 | * access to a known hint bit in a known OP, we can't | |
961 | * tell whether HINT_STRICT_REFS is in force or not. | |
962 | */ | |
46fc3d4c | 963 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 964 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 965 | if (i) |
3280af22 | 966 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
967 | else |
968 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
969 | } |
970 | return 0; | |
971 | } | |
972 | ||
973 | int | |
864dbfa3 | 974 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 975 | { |
3280af22 | 976 | PL_sub_generation++; |
463ee0b2 LW |
977 | return 0; |
978 | } | |
979 | ||
980 | int | |
864dbfa3 | 981 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 982 | { |
a0d0e21e | 983 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 984 | PL_amagic_generation++; |
463ee0b2 | 985 | |
a0d0e21e LW |
986 | return 0; |
987 | } | |
463ee0b2 | 988 | |
946ec16e | 989 | int |
864dbfa3 | 990 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
991 | { |
992 | HV *hv = (HV*)LvTARG(sv); | |
993 | HE *entry; | |
994 | I32 i = 0; | |
995 | ||
996 | if (hv) { | |
997 | (void) hv_iterinit(hv); | |
33c27489 | 998 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 GS |
999 | i = HvKEYS(hv); |
1000 | else { | |
1001 | /*SUPPRESS 560*/ | |
1002 | while (entry = hv_iternext(hv)) { | |
1003 | i++; | |
1004 | } | |
1005 | } | |
1006 | } | |
1007 | ||
1008 | sv_setiv(sv, (IV)i); | |
1009 | return 0; | |
1010 | } | |
1011 | ||
1012 | int | |
864dbfa3 | 1013 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1014 | { |
1015 | if (LvTARG(sv)) { | |
1016 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1017 | } |
1018 | return 0; | |
93965878 | 1019 | } |
946ec16e | 1020 | |
e336de0d | 1021 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1022 | STATIC int |
cea2e8a9 | 1023 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1024 | { |
1025 | dSP; | |
463ee0b2 | 1026 | |
924508f0 GS |
1027 | PUSHMARK(SP); |
1028 | EXTEND(SP, n); | |
33c27489 | 1029 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 NIS |
1030 | if (n > 1) { |
1031 | if (mg->mg_ptr) { | |
565764a8 | 1032 | if (mg->mg_len >= 0) |
79cb57f6 | 1033 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1034 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1035 | PUSHs((SV*)mg->mg_ptr); |
1036 | } | |
1037 | else if (mg->mg_type == 'p') { | |
565764a8 | 1038 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1039 | } |
1040 | } | |
1041 | if (n > 2) { | |
1042 | PUSHs(val); | |
88e89b8a | 1043 | } |
463ee0b2 LW |
1044 | PUTBACK; |
1045 | ||
864dbfa3 | 1046 | return call_method(meth, flags); |
946ec16e | 1047 | } |
1048 | ||
76e3520e | 1049 | STATIC int |
cea2e8a9 | 1050 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1051 | { |
1052 | dSP; | |
463ee0b2 | 1053 | |
a0d0e21e LW |
1054 | ENTER; |
1055 | SAVETMPS; | |
e788e7d3 | 1056 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1057 | |
33c27489 | 1058 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1059 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1060 | } |
463ee0b2 | 1061 | |
d3acc0f7 | 1062 | POPSTACK; |
a0d0e21e LW |
1063 | FREETMPS; |
1064 | LEAVE; | |
1065 | return 0; | |
1066 | } | |
463ee0b2 | 1067 | |
a0d0e21e | 1068 | int |
864dbfa3 | 1069 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1070 | { |
1071 | magic_methpack(sv,mg,"FETCH"); | |
1072 | if (mg->mg_ptr) | |
1073 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1074 | return 0; |
1075 | } | |
1076 | ||
1077 | int | |
864dbfa3 | 1078 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d GS |
1079 | { |
1080 | dSP; | |
a60c0954 | 1081 | ENTER; |
e788e7d3 | 1082 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1083 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1084 | POPSTACK; |
a60c0954 | 1085 | LEAVE; |
463ee0b2 LW |
1086 | return 0; |
1087 | } | |
1088 | ||
1089 | int | |
864dbfa3 | 1090 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1091 | { |
a0d0e21e LW |
1092 | return magic_methpack(sv,mg,"DELETE"); |
1093 | } | |
463ee0b2 | 1094 | |
93965878 NIS |
1095 | |
1096 | U32 | |
864dbfa3 | 1097 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 | 1098 | { |
e336de0d | 1099 | dSP; |
93965878 NIS |
1100 | U32 retval = 0; |
1101 | ||
1102 | ENTER; | |
1103 | SAVETMPS; | |
e788e7d3 | 1104 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1105 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1106 | sv = *PL_stack_sp--; |
a60c0954 | 1107 | retval = (U32) SvIV(sv)-1; |
93965878 | 1108 | } |
d3acc0f7 | 1109 | POPSTACK; |
93965878 NIS |
1110 | FREETMPS; |
1111 | LEAVE; | |
1112 | return retval; | |
1113 | } | |
1114 | ||
cea2e8a9 GS |
1115 | int |
1116 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e LW |
1117 | { |
1118 | dSP; | |
463ee0b2 | 1119 | |
e336de0d | 1120 | ENTER; |
e788e7d3 | 1121 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1122 | PUSHMARK(SP); |
33c27489 | 1123 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1124 | PUTBACK; |
864dbfa3 | 1125 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1126 | POPSTACK; |
a60c0954 | 1127 | LEAVE; |
463ee0b2 LW |
1128 | return 0; |
1129 | } | |
1130 | ||
1131 | int | |
864dbfa3 | 1132 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1133 | { |
463ee0b2 | 1134 | dSP; |
a0d0e21e | 1135 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1136 | |
1137 | ENTER; | |
a0d0e21e | 1138 | SAVETMPS; |
e788e7d3 | 1139 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1140 | PUSHMARK(SP); |
1141 | EXTEND(SP, 2); | |
33c27489 | 1142 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1143 | if (SvOK(key)) |
1144 | PUSHs(key); | |
1145 | PUTBACK; | |
1146 | ||
864dbfa3 | 1147 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1148 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1149 | |
d3acc0f7 | 1150 | POPSTACK; |
a0d0e21e LW |
1151 | FREETMPS; |
1152 | LEAVE; | |
79072805 LW |
1153 | return 0; |
1154 | } | |
1155 | ||
1156 | int | |
864dbfa3 | 1157 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1158 | { |
1159 | return magic_methpack(sv,mg,"EXISTS"); | |
1160 | } | |
1161 | ||
1162 | int | |
864dbfa3 | 1163 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1164 | { |
11343788 | 1165 | dTHR; |
79072805 LW |
1166 | OP *o; |
1167 | I32 i; | |
1168 | GV* gv; | |
1169 | SV** svp; | |
2d8e6c8d | 1170 | STRLEN n_a; |
79072805 | 1171 | |
3280af22 | 1172 | gv = PL_DBline; |
79072805 | 1173 | i = SvTRUE(sv); |
188ea221 | 1174 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1175 | atoi(MgPV(mg,n_a)), FALSE); |
8990e307 | 1176 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1177 | o->op_private = i; |
0453d815 PM |
1178 | else if (ckWARN_d(WARN_INTERNAL)) |
1179 | Perl_warner(aTHX_ WARN_INTERNAL, "Can't break at that line\n"); | |
79072805 LW |
1180 | return 0; |
1181 | } | |
1182 | ||
1183 | int | |
864dbfa3 | 1184 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1185 | { |
0f15f207 | 1186 | dTHR; |
3280af22 | 1187 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1188 | return 0; |
1189 | } | |
1190 | ||
1191 | int | |
864dbfa3 | 1192 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1193 | { |
0f15f207 | 1194 | dTHR; |
3280af22 | 1195 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1196 | return 0; |
1197 | } | |
1198 | ||
1199 | int | |
864dbfa3 | 1200 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1201 | { |
1202 | SV* lsv = LvTARG(sv); | |
1203 | ||
1204 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1205 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1206 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1207 | dTHR; |
a0ed51b3 LW |
1208 | I32 i = mg->mg_len; |
1209 | if (IN_UTF8) | |
1210 | sv_pos_b2u(lsv, &i); | |
1211 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1212 | return 0; |
1213 | } | |
1214 | } | |
1215 | (void)SvOK_off(sv); | |
1216 | return 0; | |
1217 | } | |
1218 | ||
1219 | int | |
864dbfa3 | 1220 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1221 | { |
1222 | SV* lsv = LvTARG(sv); | |
1223 | SSize_t pos; | |
1224 | STRLEN len; | |
a0ed51b3 | 1225 | STRLEN ulen; |
c485e607 | 1226 | dTHR; |
a0d0e21e LW |
1227 | |
1228 | mg = 0; | |
1229 | ||
1230 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1231 | mg = mg_find(lsv, 'g'); | |
1232 | if (!mg) { | |
1233 | if (!SvOK(sv)) | |
1234 | return 0; | |
1235 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1236 | mg = mg_find(lsv, 'g'); | |
1237 | } | |
1238 | else if (!SvOK(sv)) { | |
565764a8 | 1239 | mg->mg_len = -1; |
a0d0e21e LW |
1240 | return 0; |
1241 | } | |
1242 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1243 | ||
c485e607 | 1244 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 LW |
1245 | |
1246 | if (IN_UTF8) { | |
1247 | ulen = sv_len_utf8(lsv); | |
1248 | if (ulen) | |
1249 | len = ulen; | |
1250 | else | |
1251 | ulen = 0; | |
1252 | } | |
1253 | ||
a0d0e21e LW |
1254 | if (pos < 0) { |
1255 | pos += len; | |
1256 | if (pos < 0) | |
1257 | pos = 0; | |
1258 | } | |
1259 | else if (pos > len) | |
1260 | pos = len; | |
a0ed51b3 LW |
1261 | |
1262 | if (ulen) { | |
1263 | I32 p = pos; | |
1264 | sv_pos_u2b(lsv, &p, 0); | |
1265 | pos = p; | |
1266 | } | |
1267 | ||
565764a8 | 1268 | mg->mg_len = pos; |
71be2cbc | 1269 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1270 | |
79072805 LW |
1271 | return 0; |
1272 | } | |
1273 | ||
1274 | int | |
864dbfa3 | 1275 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1276 | { |
8646b087 | 1277 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1278 | SvFAKE_off(sv); | |
946ec16e | 1279 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1280 | SvFAKE_on(sv); |
1281 | } | |
1282 | else | |
946ec16e | 1283 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1284 | return 0; |
1285 | } | |
1286 | ||
1287 | int | |
864dbfa3 | 1288 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1289 | { |
1290 | register char *s; | |
1291 | GV* gv; | |
2d8e6c8d | 1292 | STRLEN n_a; |
79072805 LW |
1293 | |
1294 | if (!SvOK(sv)) | |
1295 | return 0; | |
2d8e6c8d | 1296 | s = SvPV(sv, n_a); |
79072805 LW |
1297 | if (*s == '*' && s[1]) |
1298 | s++; | |
85e6fe83 | 1299 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1300 | if (sv == (SV*)gv) |
1301 | return 0; | |
1302 | if (GvGP(sv)) | |
88e89b8a | 1303 | gp_free((GV*)sv); |
79072805 | 1304 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1305 | return 0; |
1306 | } | |
1307 | ||
1308 | int | |
864dbfa3 | 1309 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1310 | { |
1311 | STRLEN len; | |
1312 | SV *lsv = LvTARG(sv); | |
1313 | char *tmps = SvPV(lsv,len); | |
1314 | I32 offs = LvTARGOFF(sv); | |
1315 | I32 rem = LvTARGLEN(sv); | |
1316 | ||
1317 | if (offs > len) | |
1318 | offs = len; | |
1319 | if (rem + offs > len) | |
1320 | rem = len - offs; | |
1321 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1322 | return 0; | |
1323 | } | |
1324 | ||
1325 | int | |
864dbfa3 | 1326 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1327 | { |
8990e307 LW |
1328 | STRLEN len; |
1329 | char *tmps = SvPV(sv,len); | |
1330 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1331 | return 0; |
1332 | } | |
1333 | ||
1334 | int | |
864dbfa3 | 1335 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1336 | { |
a863c7d1 | 1337 | dTHR; |
565764a8 DL |
1338 | TAINT_IF((mg->mg_len & 1) || |
1339 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1340 | return 0; |
1341 | } | |
1342 | ||
1343 | int | |
864dbfa3 | 1344 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1345 | { |
11343788 | 1346 | dTHR; |
3280af22 NIS |
1347 | if (PL_localizing) { |
1348 | if (PL_localizing == 1) | |
565764a8 | 1349 | mg->mg_len <<= 1; |
748a9306 | 1350 | else |
565764a8 | 1351 | mg->mg_len >>= 1; |
a0d0e21e | 1352 | } |
3280af22 | 1353 | else if (PL_tainted) |
565764a8 | 1354 | mg->mg_len |= 1; |
748a9306 | 1355 | else |
565764a8 | 1356 | mg->mg_len &= ~1; |
463ee0b2 LW |
1357 | return 0; |
1358 | } | |
1359 | ||
1360 | int | |
864dbfa3 | 1361 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1362 | { |
1363 | SV *lsv = LvTARG(sv); | |
1364 | unsigned char *s; | |
1365 | unsigned long retnum; | |
1366 | STRLEN lsvlen; | |
1367 | I32 len; | |
1368 | I32 offset; | |
1369 | I32 size; | |
1370 | ||
1371 | if (!lsv) { | |
1372 | SvOK_off(sv); | |
1373 | return 0; | |
1374 | } | |
1375 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1376 | offset = LvTARGOFF(sv); | |
1377 | size = LvTARGLEN(sv); | |
1378 | len = (offset + size + 7) / 8; | |
1379 | ||
1380 | /* Copied from pp_vec() */ | |
1381 | ||
1382 | if (len > lsvlen) { | |
1383 | if (size <= 8) | |
1384 | retnum = 0; | |
1385 | else { | |
1386 | offset >>= 3; | |
1387 | if (size == 16) { | |
1388 | if (offset >= lsvlen) | |
1389 | retnum = 0; | |
1390 | else | |
1391 | retnum = (unsigned long) s[offset] << 8; | |
1392 | } | |
1393 | else if (size == 32) { | |
1394 | if (offset >= lsvlen) | |
1395 | retnum = 0; | |
1396 | else if (offset + 1 >= lsvlen) | |
1397 | retnum = (unsigned long) s[offset] << 24; | |
1398 | else if (offset + 2 >= lsvlen) | |
1399 | retnum = ((unsigned long) s[offset] << 24) + | |
1400 | ((unsigned long) s[offset + 1] << 16); | |
1401 | else | |
1402 | retnum = ((unsigned long) s[offset] << 24) + | |
1403 | ((unsigned long) s[offset + 1] << 16) + | |
1404 | (s[offset + 2] << 8); | |
1405 | } | |
1406 | } | |
1407 | } | |
1408 | else if (size < 8) | |
1409 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1410 | else { | |
1411 | offset >>= 3; | |
1412 | if (size == 8) | |
1413 | retnum = s[offset]; | |
1414 | else if (size == 16) | |
1415 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1416 | else if (size == 32) | |
1417 | retnum = ((unsigned long) s[offset] << 24) + | |
1418 | ((unsigned long) s[offset + 1] << 16) + | |
1419 | (s[offset + 2] << 8) + s[offset+3]; | |
1420 | } | |
1421 | ||
1422 | sv_setuv(sv, (UV)retnum); | |
1423 | return 0; | |
1424 | } | |
1425 | ||
1426 | int | |
864dbfa3 | 1427 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1428 | { |
1429 | do_vecset(sv); /* XXX slurp this routine */ | |
1430 | return 0; | |
1431 | } | |
1432 | ||
1433 | int | |
864dbfa3 | 1434 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1435 | { |
71be2cbc | 1436 | SV *targ = Nullsv; |
5f05dabc | 1437 | if (LvTARGLEN(sv)) { |
68dc0745 | 1438 | if (mg->mg_obj) { |
74e13ce4 GS |
1439 | SV *ahv = LvTARG(sv); |
1440 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1441 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1442 | if (he) | |
1443 | targ = HeVAL(he); | |
1444 | } | |
1445 | else { | |
1446 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1447 | if (svp) | |
1448 | targ = *svp; | |
1449 | } | |
68dc0745 | 1450 | } |
1451 | else { | |
3c78fafa | 1452 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1453 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1454 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1455 | } | |
3280af22 | 1456 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1457 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1458 | /* somebody else defined it for us */ |
1459 | SvREFCNT_dec(LvTARG(sv)); | |
1460 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1461 | LvTARGLEN(sv) = 0; | |
1462 | SvREFCNT_dec(mg->mg_obj); | |
1463 | mg->mg_obj = Nullsv; | |
1464 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1465 | } | |
5f05dabc | 1466 | } |
71be2cbc | 1467 | else |
1468 | targ = LvTARG(sv); | |
3280af22 | 1469 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1470 | return 0; |
1471 | } | |
1472 | ||
1473 | int | |
864dbfa3 | 1474 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1475 | { |
1476 | if (LvTARGLEN(sv)) | |
68dc0745 | 1477 | vivify_defelem(sv); |
1478 | if (LvTARG(sv)) { | |
5f05dabc | 1479 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1480 | SvSETMAGIC(LvTARG(sv)); |
1481 | } | |
5f05dabc | 1482 | return 0; |
1483 | } | |
1484 | ||
71be2cbc | 1485 | void |
864dbfa3 | 1486 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1487 | { |
e858de61 | 1488 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1489 | MAGIC *mg; |
1490 | SV *value = Nullsv; | |
71be2cbc | 1491 | |
68dc0745 | 1492 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1493 | return; |
68dc0745 | 1494 | if (mg->mg_obj) { |
74e13ce4 | 1495 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1496 | STRLEN n_a; |
74e13ce4 | 1497 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 | 1498 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1499 | if (he) |
1500 | value = HeVAL(he); | |
1501 | } | |
1502 | else { | |
af7f9c15 | 1503 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1504 | if (svp) |
1505 | value = *svp; | |
1506 | } | |
3280af22 | 1507 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1508 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1509 | } |
68dc0745 | 1510 | else { |
1511 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1512 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1513 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1514 | else { | |
1515 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1516 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1517 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1518 | } |
1519 | } | |
3e3baf6d | 1520 | (void)SvREFCNT_inc(value); |
68dc0745 | 1521 | SvREFCNT_dec(LvTARG(sv)); |
1522 | LvTARG(sv) = value; | |
71be2cbc | 1523 | LvTARGLEN(sv) = 0; |
68dc0745 | 1524 | SvREFCNT_dec(mg->mg_obj); |
1525 | mg->mg_obj = Nullsv; | |
1526 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1527 | } |
1528 | ||
1529 | int | |
864dbfa3 | 1530 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1531 | { |
1532 | AV *av = (AV*)mg->mg_obj; | |
1533 | SV **svp = AvARRAY(av); | |
1534 | I32 i = AvFILLp(av); | |
1535 | while (i >= 0) { | |
1536 | if (svp[i] && svp[i] != &PL_sv_undef) { | |
1537 | if (!SvWEAKREF(svp[i])) | |
cea2e8a9 | 1538 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 GS |
1539 | /* XXX Should we check that it hasn't changed? */ |
1540 | SvRV(svp[i]) = 0; | |
1541 | SvOK_off(svp[i]); | |
1542 | SvWEAKREF_off(svp[i]); | |
1543 | svp[i] = &PL_sv_undef; | |
1544 | } | |
1545 | i--; | |
1546 | } | |
1547 | return 0; | |
1548 | } | |
1549 | ||
1550 | int | |
864dbfa3 | 1551 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1552 | { |
565764a8 | 1553 | mg->mg_len = -1; |
c6496cc7 | 1554 | SvSCREAM_off(sv); |
93a17b20 LW |
1555 | return 0; |
1556 | } | |
1557 | ||
1558 | int | |
864dbfa3 | 1559 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1560 | { |
463ee0b2 | 1561 | sv_unmagic(sv, 'B'); |
79072805 LW |
1562 | SvVALID_off(sv); |
1563 | return 0; | |
1564 | } | |
1565 | ||
1566 | int | |
864dbfa3 | 1567 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 1568 | { |
1569 | sv_unmagic(sv, 'f'); | |
1570 | SvCOMPILED_off(sv); | |
1571 | return 0; | |
1572 | } | |
1573 | ||
1574 | int | |
864dbfa3 | 1575 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1576 | { |
1577 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1578 | ||
1579 | if (uf && uf->uf_set) | |
1580 | (*uf->uf_set)(uf->uf_index, sv); | |
1581 | return 0; | |
1582 | } | |
1583 | ||
c277df42 | 1584 | int |
864dbfa3 | 1585 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
1586 | { |
1587 | regexp *re = (regexp *)mg->mg_obj; | |
1588 | ReREFCNT_dec(re); | |
1589 | return 0; | |
1590 | } | |
1591 | ||
7a4c00b4 | 1592 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1593 | int |
864dbfa3 | 1594 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 1595 | { |
1596 | /* | |
838b5b74 | 1597 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 1598 | * and vanished with a faint plop. |
1599 | */ | |
7a4c00b4 | 1600 | if (mg->mg_ptr) { |
1601 | Safefree(mg->mg_ptr); | |
1602 | mg->mg_ptr = NULL; | |
565764a8 | 1603 | mg->mg_len = -1; |
7a4c00b4 | 1604 | } |
bbce6d69 | 1605 | return 0; |
1606 | } | |
7a4c00b4 | 1607 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1608 | |
1609 | int | |
864dbfa3 | 1610 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1611 | { |
11343788 | 1612 | dTHR; |
79072805 LW |
1613 | register char *s; |
1614 | I32 i; | |
8990e307 | 1615 | STRLEN len; |
79072805 | 1616 | switch (*mg->mg_ptr) { |
748a9306 | 1617 | case '\001': /* ^A */ |
3280af22 | 1618 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1619 | break; |
599cee73 PM |
1620 | case '\002': /* ^B */ |
1621 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
0453d815 | 1622 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) { |
e24b16f9 | 1623 | PL_compiling.cop_warnings = WARN_ALL; |
0453d815 PM |
1624 | PL_dowarn |= G_WARN_ONCE ; |
1625 | } | |
599cee73 | 1626 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
e24b16f9 | 1627 | PL_compiling.cop_warnings = WARN_NONE; |
599cee73 | 1628 | else { |
0453d815 | 1629 | if (specialWARN(PL_compiling.cop_warnings)) |
e24b16f9 | 1630 | PL_compiling.cop_warnings = newSVsv(sv) ; |
0453d815 PM |
1631 | else |
1632 | sv_setsv(PL_compiling.cop_warnings, sv); | |
1633 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
1634 | PL_dowarn |= G_WARN_ONCE ; | |
599cee73 PM |
1635 | } |
1636 | } | |
1637 | break; | |
49460fe6 NIS |
1638 | |
1639 | case '\003': /* ^C */ | |
1640 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1641 | break; | |
1642 | ||
79072805 | 1643 | case '\004': /* ^D */ |
3280af22 | 1644 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1645 | DEBUG_x(dump_all()); |
1646 | break; | |
28f23441 | 1647 | case '\005': /* ^E */ |
1648 | #ifdef VMS | |
1649 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1650 | #else | |
048c1ddf | 1651 | # ifdef WIN32 |
22fae026 | 1652 | SetLastError( SvIV(sv) ); |
048c1ddf IZ |
1653 | # else |
1654 | # ifndef OS2 | |
f86702cc | 1655 | /* will anyone ever use this? */ |
1656 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
048c1ddf IZ |
1657 | # endif |
1658 | # endif | |
22fae026 | 1659 | #endif |
28f23441 | 1660 | break; |
79072805 | 1661 | case '\006': /* ^F */ |
3280af22 | 1662 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1663 | break; |
a0d0e21e | 1664 | case '\010': /* ^H */ |
3280af22 | 1665 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1666 | break; |
9d116dd7 | 1667 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1668 | if (PL_inplace) |
1669 | Safefree(PL_inplace); | |
79072805 | 1670 | if (SvOK(sv)) |
2d8e6c8d | 1671 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 | 1672 | else |
3280af22 | 1673 | PL_inplace = Nullch; |
79072805 | 1674 | break; |
28f23441 | 1675 | case '\017': /* ^O */ |
3280af22 NIS |
1676 | if (PL_osname) |
1677 | Safefree(PL_osname); | |
28f23441 | 1678 | if (SvOK(sv)) |
2d8e6c8d | 1679 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 | 1680 | else |
3280af22 | 1681 | PL_osname = Nullch; |
28f23441 | 1682 | break; |
79072805 | 1683 | case '\020': /* ^P */ |
3280af22 | 1684 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e IZ |
1685 | if (PL_perldb && !PL_DBsingle) |
1686 | init_debugger(); | |
79072805 LW |
1687 | break; |
1688 | case '\024': /* ^T */ | |
88e89b8a | 1689 | #ifdef BIG_TIME |
6b88bc9c | 1690 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1691 | #else |
3280af22 | 1692 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1693 | #endif |
79072805 LW |
1694 | break; |
1695 | case '\027': /* ^W */ | |
599cee73 PM |
1696 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1697 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
0453d815 PM |
1698 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
1699 | | (i ? G_WARN_ON : G_WARN_OFF) ; | |
599cee73 | 1700 | } |
79072805 LW |
1701 | break; |
1702 | case '.': | |
3280af22 NIS |
1703 | if (PL_localizing) { |
1704 | if (PL_localizing == 1) | |
1705 | save_sptr((SV**)&PL_last_in_gv); | |
748a9306 | 1706 | } |
3280af22 NIS |
1707 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1708 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1709 | break; |
1710 | case '^': | |
3280af22 | 1711 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1712 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1713 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1714 | break; |
1715 | case '~': | |
3280af22 | 1716 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d | 1717 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 | 1718 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 LW |
1719 | break; |
1720 | case '=': | |
3280af22 | 1721 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1722 | break; |
1723 | case '-': | |
3280af22 NIS |
1724 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1725 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1726 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1727 | break; |
1728 | case '%': | |
3280af22 | 1729 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1730 | break; |
1731 | case '|': | |
4b65379b | 1732 | { |
3280af22 | 1733 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1734 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1735 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1736 | else { | |
1737 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1738 | PerlIO *ofp = IoOFP(io); | |
1739 | if (ofp) | |
1740 | (void)PerlIO_flush(ofp); | |
1741 | IoFLAGS(io) |= IOf_FLUSH; | |
1742 | } | |
1743 | } | |
79072805 LW |
1744 | } |
1745 | break; | |
1746 | case '*': | |
463ee0b2 | 1747 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1748 | PL_multiline = (i != 0); |
79072805 LW |
1749 | break; |
1750 | case '/': | |
3280af22 NIS |
1751 | SvREFCNT_dec(PL_nrs); |
1752 | PL_nrs = newSVsv(sv); | |
1753 | SvREFCNT_dec(PL_rs); | |
1754 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1755 | break; |
1756 | case '\\': | |
3280af22 NIS |
1757 | if (PL_ors) |
1758 | Safefree(PL_ors); | |
e3c19b7b | 1759 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 | 1760 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b | 1761 | else { |
3280af22 NIS |
1762 | PL_ors = Nullch; |
1763 | PL_orslen = 0; | |
e3c19b7b | 1764 | } |
79072805 LW |
1765 | break; |
1766 | case ',': | |
3280af22 NIS |
1767 | if (PL_ofs) |
1768 | Safefree(PL_ofs); | |
1769 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1770 | break; |
1771 | case '#': | |
3280af22 NIS |
1772 | if (PL_ofmt) |
1773 | Safefree(PL_ofmt); | |
2d8e6c8d | 1774 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 LW |
1775 | break; |
1776 | case '[': | |
3280af22 | 1777 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1778 | break; |
1779 | case '?': | |
ff0cee69 | 1780 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1781 | if (PL_localizing == 2) { |
1782 | PL_statusvalue = LvTARGOFF(sv); | |
1783 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1784 | } |
1785 | else | |
1786 | #endif | |
1787 | #ifdef VMSISH_STATUS | |
1788 | if (VMSISH_STATUS) | |
1789 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1790 | else | |
1791 | #endif | |
1792 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1793 | break; |
1794 | case '!': | |
78987ded | 1795 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1796 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1797 | break; |
1798 | case '<': | |
3280af22 NIS |
1799 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1800 | if (PL_delaymagic) { | |
1801 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1802 | break; /* don't do magic till later */ |
1803 | } | |
1804 | #ifdef HAS_SETRUID | |
b28d0864 | 1805 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1806 | #else |
1807 | #ifdef HAS_SETREUID | |
3280af22 | 1808 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1809 | #else |
85e6fe83 | 1810 | #ifdef HAS_SETRESUID |
b28d0864 | 1811 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1812 | #else |
b28d0864 NIS |
1813 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1814 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1815 | else { |
d8eceb89 | 1816 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 1817 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 1818 | } |
79072805 LW |
1819 | #endif |
1820 | #endif | |
85e6fe83 | 1821 | #endif |
d8eceb89 | 1822 | PL_uid = PerlProc_getuid(); |
3280af22 | 1823 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1824 | break; |
1825 | case '>': | |
3280af22 NIS |
1826 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1827 | if (PL_delaymagic) { | |
1828 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1829 | break; /* don't do magic till later */ |
1830 | } | |
1831 | #ifdef HAS_SETEUID | |
3280af22 | 1832 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1833 | #else |
1834 | #ifdef HAS_SETREUID | |
b28d0864 | 1835 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1836 | #else |
1837 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1838 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1839 | #else |
b28d0864 NIS |
1840 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1841 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1842 | else { |
d8eceb89 | 1843 | PL_euid = rlProc_geteuid(); |
cea2e8a9 | 1844 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 1845 | } |
79072805 LW |
1846 | #endif |
1847 | #endif | |
85e6fe83 | 1848 | #endif |
d8eceb89 | 1849 | PL_euid = PerlProc_geteuid(); |
3280af22 | 1850 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1851 | break; |
1852 | case '(': | |
3280af22 NIS |
1853 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1854 | if (PL_delaymagic) { | |
1855 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1856 | break; /* don't do magic till later */ |
1857 | } | |
1858 | #ifdef HAS_SETRGID | |
b28d0864 | 1859 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1860 | #else |
1861 | #ifdef HAS_SETREGID | |
3280af22 | 1862 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1863 | #else |
1864 | #ifdef HAS_SETRESGID | |
b28d0864 | 1865 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1866 | #else |
b28d0864 NIS |
1867 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1868 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1869 | else { |
d8eceb89 | 1870 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 1871 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 1872 | } |
79072805 LW |
1873 | #endif |
1874 | #endif | |
85e6fe83 | 1875 | #endif |
d8eceb89 | 1876 | PL_gid = PerlProc_getgid(); |
3280af22 | 1877 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1878 | break; |
1879 | case ')': | |
5cd24f17 | 1880 | #ifdef HAS_SETGROUPS |
1881 | { | |
2d8e6c8d | 1882 | char *p = SvPV(sv, len); |
5cd24f17 | 1883 | Groups_t gary[NGROUPS]; |
1884 | ||
5cd24f17 | 1885 | while (isSPACE(*p)) |
1886 | ++p; | |
cf2093f6 | 1887 | PL_egid = I_V(Atol(p)); |
5cd24f17 | 1888 | for (i = 0; i < NGROUPS; ++i) { |
1889 | while (*p && !isSPACE(*p)) | |
1890 | ++p; | |
1891 | while (isSPACE(*p)) | |
1892 | ++p; | |
1893 | if (!*p) | |
1894 | break; | |
cf2093f6 | 1895 | gary[i] = I_V(Atol(p)); |
5cd24f17 | 1896 | } |
8cc95fdb | 1897 | if (i) |
1898 | (void)setgroups(i, gary); | |
5cd24f17 | 1899 | } |
1900 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1901 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1902 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1903 | if (PL_delaymagic) { |
1904 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1905 | break; /* don't do magic till later */ |
1906 | } | |
1907 | #ifdef HAS_SETEGID | |
3280af22 | 1908 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1909 | #else |
1910 | #ifdef HAS_SETREGID | |
b28d0864 | 1911 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1912 | #else |
1913 | #ifdef HAS_SETRESGID | |
b28d0864 | 1914 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1915 | #else |
b28d0864 NIS |
1916 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1917 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1918 | else { |
d8eceb89 | 1919 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 1920 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 1921 | } |
79072805 LW |
1922 | #endif |
1923 | #endif | |
85e6fe83 | 1924 | #endif |
d8eceb89 | 1925 | PL_egid = PerlProc_getegid(); |
3280af22 | 1926 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
1927 | break; |
1928 | case ':': | |
2d8e6c8d | 1929 | PL_chopset = SvPV_force(sv,len); |
79072805 LW |
1930 | break; |
1931 | case '0': | |
3280af22 NIS |
1932 | if (!PL_origalen) { |
1933 | s = PL_origargv[0]; | |
79072805 LW |
1934 | s += strlen(s); |
1935 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1936 | for (i = 1; i < PL_origargc; i++) { |
1937 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1938 | #ifdef OS2 |
6b88bc9c | 1939 | || PL_origargv[i] == s + 2 |
fb73857a | 1940 | #endif |
1941 | ) | |
379c4362 GS |
1942 | { |
1943 | ++s; | |
1944 | s += strlen(s); /* this one is ok too */ | |
1945 | } | |
fb73857a | 1946 | else |
1947 | break; | |
79072805 | 1948 | } |
bbce6d69 | 1949 | /* can grab env area too? */ |
3280af22 | 1950 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 1951 | #ifdef OS2 |
6b88bc9c | 1952 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 1953 | #endif |
1954 | )) { | |
66b1d557 | 1955 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 1956 | /* force copy of environment */ |
3280af22 | 1957 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 GS |
1958 | if (PL_origenviron[i] == s + 1) { |
1959 | ++s; | |
1960 | s += strlen(s); | |
1961 | } | |
fb73857a | 1962 | else |
1963 | break; | |
79072805 | 1964 | } |
3280af22 | 1965 | PL_origalen = s - PL_origargv[0]; |
79072805 | 1966 | } |
a0d0e21e | 1967 | s = SvPV_force(sv,len); |
8990e307 | 1968 | i = len; |
3280af22 NIS |
1969 | if (i >= PL_origalen) { |
1970 | i = PL_origalen; | |
fb73857a | 1971 | /* don't allow system to limit $0 seen by script */ |
1972 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
1973 | Copy(s, PL_origargv[0], i, char); |
1974 | s = PL_origargv[0]+i; | |
fb73857a | 1975 | *s = '\0'; |
79072805 LW |
1976 | } |
1977 | else { | |
3280af22 NIS |
1978 | Copy(s, PL_origargv[0], i, char); |
1979 | s = PL_origargv[0]+i; | |
79072805 | 1980 | *s++ = '\0'; |
3280af22 | 1981 | while (++i < PL_origalen) |
8990e307 | 1982 | *s++ = ' '; |
3280af22 NIS |
1983 | s = PL_origargv[0]+i; |
1984 | for (i = 1; i < PL_origargc; i++) | |
1985 | PL_origargv[i] = Nullch; | |
79072805 LW |
1986 | } |
1987 | break; | |
a863c7d1 MB |
1988 | #ifdef USE_THREADS |
1989 | case '@': | |
38a03e6e | 1990 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1991 | break; |
1992 | #endif /* USE_THREADS */ | |
79072805 LW |
1993 | } |
1994 | return 0; | |
1995 | } | |
1996 | ||
f93b4edd MB |
1997 | #ifdef USE_THREADS |
1998 | int | |
864dbfa3 | 1999 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd MB |
2000 | { |
2001 | dTHR; | |
8b73bbec | 2002 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 | 2003 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd | 2004 | if (MgOWNER(mg)) |
cea2e8a9 | 2005 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd MB |
2006 | MUTEX_DESTROY(MgMUTEXP(mg)); |
2007 | COND_DESTROY(MgCONDP(mg)); | |
2008 | return 0; | |
2009 | } | |
2010 | #endif /* USE_THREADS */ | |
2011 | ||
79072805 | 2012 | I32 |
864dbfa3 | 2013 | Perl_whichsig(pTHX_ char *sig) |
79072805 LW |
2014 | { |
2015 | register char **sigv; | |
2016 | ||
22c35a8c | 2017 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 | 2018 | if (strEQ(sig,*sigv)) |
22c35a8c | 2019 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2020 | #ifdef SIGCLD |
2021 | if (strEQ(sig,"CHLD")) | |
2022 | return SIGCLD; | |
2023 | #endif | |
2024 | #ifdef SIGCHLD | |
2025 | if (strEQ(sig,"CLD")) | |
2026 | return SIGCHLD; | |
2027 | #endif | |
2028 | return 0; | |
2029 | } | |
2030 | ||
84902520 TB |
2031 | static SV* sig_sv; |
2032 | ||
ecfc5424 | 2033 | Signal_t |
cea2e8a9 | 2034 | Perl_sighandler(int sig) |
79072805 | 2035 | { |
cea2e8a9 | 2036 | dTHX; |
79072805 | 2037 | dSP; |
00d579c5 | 2038 | GV *gv = Nullgv; |
a0d0e21e | 2039 | HV *st; |
3280af22 | 2040 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2041 | CV *cv = Nullcv; |
533c011a | 2042 | OP *myop = PL_op; |
84902520 | 2043 | U32 flags = 0; |
3280af22 NIS |
2044 | I32 o_save_i = PL_savestack_ix, type; |
2045 | XPV *tXpv = PL_Xpv; | |
84902520 | 2046 | |
3280af22 | 2047 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2048 | flags |= 1; |
3280af22 | 2049 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2050 | flags |= 4; |
3280af22 | 2051 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2052 | flags |= 8; |
3280af22 | 2053 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2054 | flags |= 16; |
2055 | ||
22c35a8c | 2056 | if (!PL_psig_ptr[sig]) |
cea2e8a9 | 2057 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c | 2058 | PL_sig_name[sig]); |
ff0cee69 | 2059 | |
84902520 TB |
2060 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2061 | infinity, so we fix 4 (in fact 5): */ | |
2062 | if (flags & 1) { | |
3280af22 NIS |
2063 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2064 | o_save_i = PL_savestack_ix; | |
51371543 | 2065 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2066 | } |
2067 | if (flags & 4) | |
3280af22 | 2068 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2069 | if (flags & 8) { |
3280af22 NIS |
2070 | PL_retstack_ix++; |
2071 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2072 | } |
2073 | if (flags & 16) | |
3280af22 | 2074 | PL_scopestack_ix += 1; |
84902520 | 2075 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c | 2076 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2077 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2078 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2079 | |
a0d0e21e | 2080 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2081 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 | 2082 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2083 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2084 | : ((cv && CvGV(cv)) |
2085 | ? GvENAME(CvGV(cv)) | |
2086 | : "__ANON__"))); | |
2087 | goto cleanup; | |
79072805 LW |
2088 | } |
2089 | ||
22c35a8c GS |
2090 | if(PL_psig_name[sig]) { |
2091 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 TB |
2092 | flags |= 64; |
2093 | sig_sv = sv; | |
2094 | } else { | |
ff0cee69 | 2095 | sv = sv_newmortal(); |
22c35a8c | 2096 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2097 | } |
e336de0d | 2098 | |
e788e7d3 | 2099 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2100 | PUSHMARK(SP); |
79072805 | 2101 | PUSHs(sv); |
79072805 | 2102 | PUTBACK; |
a0d0e21e | 2103 | |
864dbfa3 | 2104 | call_sv((SV*)cv, G_DISCARD); |
79072805 | 2105 | |
d3acc0f7 | 2106 | POPSTACK; |
00d579c5 | 2107 | cleanup: |
84902520 | 2108 | if (flags & 1) |
3280af22 | 2109 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2110 | if (flags & 4) |
3280af22 | 2111 | PL_markstack_ptr--; |
84902520 | 2112 | if (flags & 8) |
3280af22 | 2113 | PL_retstack_ix--; |
84902520 | 2114 | if (flags & 16) |
3280af22 | 2115 | PL_scopestack_ix -= 1; |
84902520 TB |
2116 | if (flags & 64) |
2117 | SvREFCNT_dec(sv); | |
533c011a | 2118 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2119 | |
3280af22 NIS |
2120 | PL_Sv = tSv; /* Restore global temporaries. */ |
2121 | PL_Xpv = tXpv; | |
79072805 LW |
2122 | return; |
2123 | } | |
4e35701f NIS |
2124 | |
2125 | ||
51371543 GS |
2126 | #ifdef PERL_OBJECT |
2127 | #define NO_XSLOCKS | |
2128 | #include "XSUB.h" | |
2129 | #endif | |
2130 | ||
2131 | static void | |
2132 | restore_magic(pTHXo_ void *p) | |
2133 | { | |
2134 | dTHR; | |
2135 | MGS* mgs = SSPTR((I32)p, MGS*); | |
2136 | SV* sv = mgs->mgs_sv; | |
2137 | ||
2138 | if (!sv) | |
2139 | return; | |
2140 | ||
2141 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2142 | { | |
2143 | if (mgs->mgs_flags) | |
2144 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2145 | else | |
2146 | mg_magical(sv); | |
2147 | if (SvGMAGICAL(sv)) | |
2148 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2149 | } | |
2150 | ||
2151 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2152 | ||
2153 | /* If we're still on top of the stack, pop us off. (That condition | |
2154 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2155 | * if it's being called via leave_scope.) | |
2156 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2157 | * may leave alloc gunk on the savestack, and some code | |
2158 | * (e.g. sighandler) doesn't expect that... | |
2159 | */ | |
2160 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2161 | { | |
2162 | I32 popval = SSPOPINT; | |
2163 | assert(popval == SAVEt_DESTRUCTOR); | |
2164 | PL_savestack_ix -= 2; | |
2165 | popval = SSPOPINT; | |
2166 | assert(popval == SAVEt_ALLOC); | |
2167 | popval = SSPOPINT; | |
2168 | PL_savestack_ix -= popval; | |
2169 | } | |
2170 | ||
2171 | } | |
2172 | ||
2173 | static void | |
2174 | unwind_handler_stack(pTHXo_ void *p) | |
2175 | { | |
2176 | dTHR; | |
2177 | U32 flags = *(U32*)p; | |
2178 | ||
2179 | if (flags & 1) | |
2180 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2181 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
2182 | if (flags & 64) | |
2183 | SvREFCNT_dec(sig_sv); | |
2184 | } |