Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
4eb8286e |
3 | * Copyright (c) 1991-1999, Larry Wall |
79072805 |
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 |
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 |
13 | */ |
14 | |
15 | #include "EXTERN.h" |
864dbfa3 |
16 | #define PERL_IN_MG_C |
79072805 |
17 | #include "perl.h" |
18 | |
e6d9441c |
19 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e |
20 | #ifdef I_UNISTD |
21 | # include <unistd.h> |
22 | #endif |
a0d0e21e |
23 | |
5cd24f17 |
24 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 |
25 | # ifndef NGROUPS |
26 | # define NGROUPS 32 |
27 | # endif |
28 | #endif |
29 | |
51371543 |
30 | static void restore_magic(pTHXo_ void *p); |
31 | static void unwind_handler_stack(pTHXo_ void *p); |
32 | |
c07a80fd |
33 | /* |
34 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
35 | */ |
36 | |
37 | struct magic_state { |
38 | SV* mgs_sv; |
39 | U32 mgs_flags; |
455ece5e |
40 | I32 mgs_ss_ix; |
c07a80fd |
41 | }; |
455ece5e |
42 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e |
43 | |
44 | STATIC void |
cea2e8a9 |
45 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd |
46 | { |
46124e9e |
47 | dTHR; |
455ece5e |
48 | MGS* mgs; |
c07a80fd |
49 | assert(SvMAGICAL(sv)); |
50 | |
c76ac1ee |
51 | SAVEDESTRUCTOR_X(restore_magic, (void*)mgs_ix); |
455ece5e |
52 | |
53 | mgs = SSPTR(mgs_ix, MGS*); |
c07a80fd |
54 | mgs->mgs_sv = sv; |
55 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
455ece5e |
56 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd |
57 | |
58 | SvMAGICAL_off(sv); |
59 | SvREADONLY_off(sv); |
60 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
61 | } |
62 | |
8990e307 |
63 | void |
864dbfa3 |
64 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 |
65 | { |
66 | MAGIC* mg; |
67 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
68 | MGVTBL* vtbl = mg->mg_virtual; |
69 | if (vtbl) { |
2b260de0 |
70 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
71 | SvGMAGICAL_on(sv); |
72 | if (vtbl->svt_set) |
73 | SvSMAGICAL_on(sv); |
2b260de0 |
74 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 |
75 | SvRMAGICAL_on(sv); |
76 | } |
77 | } |
78 | } |
79 | |
79072805 |
80 | int |
864dbfa3 |
81 | Perl_mg_get(pTHX_ SV *sv) |
79072805 |
82 | { |
46124e9e |
83 | dTHR; |
455ece5e |
84 | I32 mgs_ix; |
79072805 |
85 | MAGIC* mg; |
c6496cc7 |
86 | MAGIC** mgp; |
760ac839 |
87 | int mgp_valid = 0; |
463ee0b2 |
88 | |
455ece5e |
89 | mgs_ix = SSNEW(sizeof(MGS)); |
90 | save_magic(mgs_ix, sv); |
463ee0b2 |
91 | |
c6496cc7 |
92 | mgp = &SvMAGIC(sv); |
93 | while ((mg = *mgp) != 0) { |
79072805 |
94 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
95 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe |
96 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
c6496cc7 |
97 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
98 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
99 | (mg->mg_flags & MGf_GSKIP)) |
455ece5e |
100 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
101 | } |
c6496cc7 |
102 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
103 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
104 | mgp = &mg->mg_moremagic; |
760ac839 |
105 | mgp_valid = 1; |
106 | } |
107 | else |
108 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
109 | } |
463ee0b2 |
110 | |
51371543 |
111 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 |
112 | return 0; |
113 | } |
114 | |
115 | int |
864dbfa3 |
116 | Perl_mg_set(pTHX_ SV *sv) |
79072805 |
117 | { |
46124e9e |
118 | dTHR; |
455ece5e |
119 | I32 mgs_ix; |
79072805 |
120 | MAGIC* mg; |
463ee0b2 |
121 | MAGIC* nextmg; |
122 | |
455ece5e |
123 | mgs_ix = SSNEW(sizeof(MGS)); |
124 | save_magic(mgs_ix, sv); |
463ee0b2 |
125 | |
126 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
127 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
128 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
129 | if (mg->mg_flags & MGf_GSKIP) { |
130 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
455ece5e |
131 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e |
132 | } |
2b260de0 |
133 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 |
134 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 |
135 | } |
463ee0b2 |
136 | |
51371543 |
137 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 |
138 | return 0; |
139 | } |
140 | |
141 | U32 |
864dbfa3 |
142 | Perl_mg_length(pTHX_ SV *sv) |
79072805 |
143 | { |
144 | MAGIC* mg; |
748a9306 |
145 | char *junk; |
463ee0b2 |
146 | STRLEN len; |
463ee0b2 |
147 | |
79072805 |
148 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
149 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
150 | if (vtbl && vtbl->svt_len) { |
455ece5e |
151 | I32 mgs_ix; |
48e43a1c |
152 | |
455ece5e |
153 | mgs_ix = SSNEW(sizeof(MGS)); |
154 | save_magic(mgs_ix, sv); |
a0d0e21e |
155 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
156 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 |
157 | restore_magic(aTHXo_ (void*)mgs_ix); |
85e6fe83 |
158 | return len; |
159 | } |
160 | } |
161 | |
748a9306 |
162 | junk = SvPV(sv, len); |
463ee0b2 |
163 | return len; |
79072805 |
164 | } |
165 | |
93965878 |
166 | I32 |
864dbfa3 |
167 | Perl_mg_size(pTHX_ SV *sv) |
93965878 |
168 | { |
169 | MAGIC* mg; |
170 | I32 len; |
171 | |
172 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
173 | MGVTBL* vtbl = mg->mg_virtual; |
2b260de0 |
174 | if (vtbl && vtbl->svt_len) { |
455ece5e |
175 | I32 mgs_ix; |
176 | |
177 | mgs_ix = SSNEW(sizeof(MGS)); |
178 | save_magic(mgs_ix, sv); |
93965878 |
179 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 |
180 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
51371543 |
181 | restore_magic(aTHXo_ (void*)mgs_ix); |
93965878 |
182 | return len; |
183 | } |
184 | } |
185 | |
186 | switch(SvTYPE(sv)) { |
187 | case SVt_PVAV: |
188 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
189 | return len; |
190 | case SVt_PVHV: |
191 | /* FIXME */ |
192 | default: |
cea2e8a9 |
193 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 |
194 | break; |
195 | } |
196 | return 0; |
197 | } |
198 | |
79072805 |
199 | int |
864dbfa3 |
200 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 |
201 | { |
455ece5e |
202 | I32 mgs_ix; |
79072805 |
203 | MAGIC* mg; |
463ee0b2 |
204 | |
455ece5e |
205 | mgs_ix = SSNEW(sizeof(MGS)); |
206 | save_magic(mgs_ix, sv); |
463ee0b2 |
207 | |
79072805 |
208 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
209 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
210 | /* omit GSKIP -- never set here */ |
211 | |
2b260de0 |
212 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 |
213 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 |
214 | } |
463ee0b2 |
215 | |
51371543 |
216 | restore_magic(aTHXo_ (void*)mgs_ix); |
79072805 |
217 | return 0; |
218 | } |
219 | |
93a17b20 |
220 | MAGIC* |
864dbfa3 |
221 | Perl_mg_find(pTHX_ SV *sv, int type) |
93a17b20 |
222 | { |
223 | MAGIC* mg; |
93a17b20 |
224 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
225 | if (mg->mg_type == type) |
226 | return mg; |
227 | } |
228 | return 0; |
229 | } |
230 | |
79072805 |
231 | int |
864dbfa3 |
232 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 |
233 | { |
463ee0b2 |
234 | int count = 0; |
79072805 |
235 | MAGIC* mg; |
463ee0b2 |
236 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
237 | if (isUPPER(mg->mg_type)) { |
33c27489 |
238 | sv_magic(nsv, |
239 | mg->mg_type == 'P' ? SvTIED_obj(sv, mg) : mg->mg_obj, |
240 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
241 | count++; |
79072805 |
242 | } |
79072805 |
243 | } |
463ee0b2 |
244 | return count; |
79072805 |
245 | } |
246 | |
247 | int |
864dbfa3 |
248 | Perl_mg_free(pTHX_ SV *sv) |
79072805 |
249 | { |
250 | MAGIC* mg; |
251 | MAGIC* moremagic; |
252 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
253 | MGVTBL* vtbl = mg->mg_virtual; |
254 | moremagic = mg->mg_moremagic; |
2b260de0 |
255 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 |
256 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
93a17b20 |
257 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 |
258 | if (mg->mg_len >= 0) |
88e89b8a |
259 | Safefree(mg->mg_ptr); |
565764a8 |
260 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
261 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
262 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
263 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
264 | Safefree(mg); |
265 | } |
266 | SvMAGIC(sv) = 0; |
267 | return 0; |
268 | } |
269 | |
270 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
271 | #include <signal.h> |
272 | #endif |
273 | |
942e002e |
274 | U32 |
864dbfa3 |
275 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
276 | { |
277 | dTHR; |
278 | register char *s; |
279 | register I32 i; |
280 | register REGEXP *rx; |
281 | char *t; |
282 | |
8f580fb8 |
283 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
284 | if (mg->mg_obj) /* @+ */ |
285 | return rx->nparens; |
286 | else /* @- */ |
287 | return rx->lastparen; |
288 | } |
289 | |
942e002e |
290 | return (U32)-1; |
6cef1e77 |
291 | } |
292 | |
293 | int |
864dbfa3 |
294 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 |
295 | { |
296 | dTHR; |
297 | register I32 paren; |
cf93c79d |
298 | register I32 s; |
6cef1e77 |
299 | register I32 i; |
300 | register REGEXP *rx; |
cf93c79d |
301 | I32 t; |
6cef1e77 |
302 | |
303 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
304 | paren = mg->mg_len; |
305 | if (paren < 0) |
306 | return 0; |
307 | if (paren <= rx->nparens && |
cf93c79d |
308 | (s = rx->startp[paren]) != -1 && |
309 | (t = rx->endp[paren]) != -1) |
6cef1e77 |
310 | { |
311 | if (mg->mg_obj) /* @+ */ |
cf93c79d |
312 | i = t; |
6cef1e77 |
313 | else /* @- */ |
cf93c79d |
314 | i = s; |
6cef1e77 |
315 | sv_setiv(sv,i); |
316 | } |
317 | } |
318 | return 0; |
319 | } |
320 | |
93a17b20 |
321 | U32 |
864dbfa3 |
322 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
323 | { |
a863c7d1 |
324 | dTHR; |
93a17b20 |
325 | register I32 paren; |
326 | register char *s; |
327 | register I32 i; |
d9f97599 |
328 | register REGEXP *rx; |
748a9306 |
329 | char *t; |
93a17b20 |
330 | |
331 | switch (*mg->mg_ptr) { |
332 | case '1': case '2': case '3': case '4': |
333 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
334 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
335 | I32 s1, t1; |
336 | |
93a17b20 |
337 | paren = atoi(mg->mg_ptr); |
338 | getparen: |
d9f97599 |
339 | if (paren <= rx->nparens && |
cf93c79d |
340 | (s1 = rx->startp[paren]) != -1 && |
341 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
342 | { |
cf93c79d |
343 | i = t1 - s1; |
71be2cbc |
344 | if (i >= 0) |
93a17b20 |
345 | return i; |
93a17b20 |
346 | } |
93a17b20 |
347 | } |
748a9306 |
348 | return 0; |
93a17b20 |
349 | case '+': |
3280af22 |
350 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
351 | paren = rx->lastparen; |
13f57bf8 |
352 | if (paren) |
353 | goto getparen; |
93a17b20 |
354 | } |
748a9306 |
355 | return 0; |
93a17b20 |
356 | case '`': |
3280af22 |
357 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
358 | if (rx->startp[0] != -1) { |
359 | i = rx->startp[0]; |
71be2cbc |
360 | if (i >= 0) |
93a17b20 |
361 | return i; |
93a17b20 |
362 | } |
93a17b20 |
363 | } |
748a9306 |
364 | return 0; |
93a17b20 |
365 | case '\'': |
3280af22 |
366 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
367 | if (rx->endp[0] != -1) { |
368 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
369 | if (i >= 0) |
5cd24f17 |
370 | return i; |
93a17b20 |
371 | } |
93a17b20 |
372 | } |
748a9306 |
373 | return 0; |
93a17b20 |
374 | case ',': |
3280af22 |
375 | return (STRLEN)PL_ofslen; |
93a17b20 |
376 | case '\\': |
3280af22 |
377 | return (STRLEN)PL_orslen; |
93a17b20 |
378 | } |
379 | magic_get(sv,mg); |
2d8e6c8d |
380 | if (!SvPOK(sv) && SvNIOK(sv)) { |
381 | STRLEN n_a; |
382 | sv_2pv(sv, &n_a); |
383 | } |
93a17b20 |
384 | if (SvPOK(sv)) |
385 | return SvCUR(sv); |
386 | return 0; |
387 | } |
388 | |
79072805 |
389 | int |
864dbfa3 |
390 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
391 | { |
a863c7d1 |
392 | dTHR; |
79072805 |
393 | register I32 paren; |
394 | register char *s; |
395 | register I32 i; |
d9f97599 |
396 | register REGEXP *rx; |
748a9306 |
397 | char *t; |
79072805 |
398 | |
399 | switch (*mg->mg_ptr) { |
748a9306 |
400 | case '\001': /* ^A */ |
3280af22 |
401 | sv_setsv(sv, PL_bodytarget); |
748a9306 |
402 | break; |
49460fe6 |
403 | case '\003': /* ^C */ |
404 | sv_setiv(sv, (IV)PL_minus_c); |
405 | break; |
406 | |
79072805 |
407 | case '\004': /* ^D */ |
3280af22 |
408 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 |
409 | break; |
28f23441 |
410 | case '\005': /* ^E */ |
cd39f2b6 |
411 | #ifdef MACOS_TRADITIONAL |
412 | { |
413 | char msg[256]; |
414 | |
415 | sv_setnv(sv,(double)gLastMacOSErr); |
416 | sv_setpv(sv, gLastMacOSErr ? GetSysErrText(gLastMacOSErr, msg) : ""); |
417 | } |
418 | #else |
28f23441 |
419 | #ifdef VMS |
420 | { |
421 | # include <descrip.h> |
422 | # include <starlet.h> |
423 | char msg[255]; |
424 | $DESCRIPTOR(msgdsc,msg); |
65202027 |
425 | sv_setnv(sv,(NV) vaxc$errno); |
28f23441 |
426 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
427 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
428 | else |
429 | sv_setpv(sv,""); |
430 | } |
431 | #else |
88e89b8a |
432 | #ifdef OS2 |
fb73857a |
433 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
65202027 |
434 | sv_setnv(sv, (NV)errno); |
fb73857a |
435 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
436 | } else { |
017f25f1 |
437 | if (errno != errno_isOS2) { |
438 | int tmp = _syserrno(); |
439 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ |
440 | Perl_rc = tmp; |
441 | } |
65202027 |
442 | sv_setnv(sv, (NV)Perl_rc); |
fb73857a |
443 | sv_setpv(sv, os2error(Perl_rc)); |
444 | } |
88e89b8a |
445 | #else |
22fae026 |
446 | #ifdef WIN32 |
447 | { |
448 | DWORD dwErr = GetLastError(); |
65202027 |
449 | sv_setnv(sv, (NV)dwErr); |
22fae026 |
450 | if (dwErr) |
76e3520e |
451 | { |
0cb96387 |
452 | PerlProc_GetOSError(sv, dwErr); |
76e3520e |
453 | } |
22fae026 |
454 | else |
455 | sv_setpv(sv, ""); |
456 | SetLastError(dwErr); |
457 | } |
458 | #else |
65202027 |
459 | sv_setnv(sv, (NV)errno); |
28f23441 |
460 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
461 | #endif |
88e89b8a |
462 | #endif |
22fae026 |
463 | #endif |
cd39f2b6 |
464 | #endif |
946ec16e |
465 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
466 | break; |
79072805 |
467 | case '\006': /* ^F */ |
3280af22 |
468 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 |
469 | break; |
a0d0e21e |
470 | case '\010': /* ^H */ |
3280af22 |
471 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e |
472 | break; |
9d116dd7 |
473 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
474 | if (PL_inplace) |
475 | sv_setpv(sv, PL_inplace); |
79072805 |
476 | else |
3280af22 |
477 | sv_setsv(sv, &PL_sv_undef); |
79072805 |
478 | break; |
28f23441 |
479 | case '\017': /* ^O */ |
3280af22 |
480 | sv_setpv(sv, PL_osname); |
28f23441 |
481 | break; |
79072805 |
482 | case '\020': /* ^P */ |
3280af22 |
483 | sv_setiv(sv, (IV)PL_perldb); |
79072805 |
484 | break; |
fb73857a |
485 | case '\023': /* ^S */ |
d58bf5aa |
486 | { |
487 | dTHR; |
3280af22 |
488 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa |
489 | SvOK_off(sv); |
3280af22 |
490 | else if (PL_in_eval) |
d58bf5aa |
491 | sv_setiv(sv, 1); |
492 | else |
493 | sv_setiv(sv, 0); |
494 | } |
fb73857a |
495 | break; |
79072805 |
496 | case '\024': /* ^T */ |
88e89b8a |
497 | #ifdef BIG_TIME |
6b88bc9c |
498 | sv_setnv(sv, PL_basetime); |
88e89b8a |
499 | #else |
3280af22 |
500 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a |
501 | #endif |
79072805 |
502 | break; |
4438c4b7 |
503 | case '\027': /* ^W & $^Warnings*/ |
504 | if (*(mg->mg_ptr+1) == '\0') |
505 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); |
506 | else if (strEQ(mg->mg_ptr, "\027arnings")) { |
507 | if (PL_compiling.cop_warnings == WARN_NONE || |
508 | PL_compiling.cop_warnings == WARN_STD) |
509 | { |
510 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; |
511 | } |
512 | else if (PL_compiling.cop_warnings == WARN_ALL) { |
513 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; |
514 | } |
515 | else { |
516 | sv_setsv(sv, PL_compiling.cop_warnings); |
517 | } |
518 | } |
79072805 |
519 | break; |
520 | case '1': case '2': case '3': case '4': |
521 | case '5': case '6': case '7': case '8': case '9': case '&': |
3280af22 |
522 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
523 | I32 s1, t1; |
524 | |
a863c7d1 |
525 | /* |
526 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
527 | * XXX Does the new way break anything? |
528 | */ |
529 | paren = atoi(mg->mg_ptr); |
79072805 |
530 | getparen: |
d9f97599 |
531 | if (paren <= rx->nparens && |
cf93c79d |
532 | (s1 = rx->startp[paren]) != -1 && |
533 | (t1 = rx->endp[paren]) != -1) |
bbce6d69 |
534 | { |
cf93c79d |
535 | i = t1 - s1; |
536 | s = rx->subbeg + s1; |
13f57bf8 |
537 | getrx: |
748a9306 |
538 | if (i >= 0) { |
13f57bf8 |
539 | bool was_tainted; |
3280af22 |
540 | if (PL_tainting) { |
541 | was_tainted = PL_tainted; |
542 | PL_tainted = FALSE; |
13f57bf8 |
543 | } |
cf93c79d |
544 | sv_setpvn(sv, s, i); |
3280af22 |
545 | if (PL_tainting) |
546 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); |
748a9306 |
547 | break; |
548 | } |
79072805 |
549 | } |
79072805 |
550 | } |
3280af22 |
551 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
552 | break; |
553 | case '+': |
3280af22 |
554 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 |
555 | paren = rx->lastparen; |
a0d0e21e |
556 | if (paren) |
557 | goto getparen; |
79072805 |
558 | } |
3280af22 |
559 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
560 | break; |
561 | case '`': |
3280af22 |
562 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
563 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
564 | i = rx->startp[0]; |
13f57bf8 |
565 | goto getrx; |
79072805 |
566 | } |
79072805 |
567 | } |
3280af22 |
568 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
569 | break; |
570 | case '\'': |
3280af22 |
571 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
cf93c79d |
572 | if (rx->subbeg && rx->endp[0] != -1) { |
573 | s = rx->subbeg + rx->endp[0]; |
574 | i = rx->sublen - rx->endp[0]; |
13f57bf8 |
575 | goto getrx; |
79072805 |
576 | } |
79072805 |
577 | } |
3280af22 |
578 | sv_setsv(sv,&PL_sv_undef); |
79072805 |
579 | break; |
580 | case '.': |
581 | #ifndef lint |
3280af22 |
582 | if (GvIO(PL_last_in_gv)) { |
583 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); |
79072805 |
584 | } |
585 | #endif |
586 | break; |
587 | case '?': |
809a5acc |
588 | { |
809a5acc |
589 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
590 | #ifdef COMPLEX_STATUS |
6b88bc9c |
591 | LvTARGOFF(sv) = PL_statusvalue; |
592 | LvTARGLEN(sv) = PL_statusvalue_vms; |
ff0cee69 |
593 | #endif |
809a5acc |
594 | } |
79072805 |
595 | break; |
596 | case '^': |
3280af22 |
597 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 |
598 | if (s) |
599 | sv_setpv(sv,s); |
600 | else { |
3280af22 |
601 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 |
602 | sv_catpv(sv,"_TOP"); |
603 | } |
604 | break; |
605 | case '~': |
3280af22 |
606 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 |
607 | if (!s) |
3280af22 |
608 | s = GvENAME(PL_defoutgv); |
79072805 |
609 | sv_setpv(sv,s); |
610 | break; |
611 | #ifndef lint |
612 | case '=': |
3280af22 |
613 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 |
614 | break; |
615 | case '-': |
3280af22 |
616 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 |
617 | break; |
618 | case '%': |
3280af22 |
619 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 |
620 | break; |
621 | #endif |
622 | case ':': |
623 | break; |
624 | case '/': |
625 | break; |
626 | case '[': |
3280af22 |
627 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 |
628 | break; |
629 | case '|': |
3280af22 |
630 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
631 | break; |
632 | case ',': |
3280af22 |
633 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 |
634 | break; |
635 | case '\\': |
3280af22 |
636 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 |
637 | break; |
638 | case '#': |
3280af22 |
639 | sv_setpv(sv,PL_ofmt); |
79072805 |
640 | break; |
641 | case '!': |
a5f75d66 |
642 | #ifdef VMS |
65202027 |
643 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
644 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
645 | #else |
88e89b8a |
646 | { |
647 | int saveerrno = errno; |
65202027 |
648 | sv_setnv(sv, (NV)errno); |
88e89b8a |
649 | #ifdef OS2 |
ed344e4f |
650 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
651 | sv_setpv(sv, os2error(Perl_rc)); |
88e89b8a |
652 | else |
a5f75d66 |
653 | #endif |
2304df62 |
654 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
655 | errno = saveerrno; |
656 | } |
657 | #endif |
946ec16e |
658 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
659 | break; |
660 | case '<': |
3280af22 |
661 | sv_setiv(sv, (IV)PL_uid); |
79072805 |
662 | break; |
663 | case '>': |
3280af22 |
664 | sv_setiv(sv, (IV)PL_euid); |
79072805 |
665 | break; |
666 | case '(': |
3280af22 |
667 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 |
668 | #ifdef HAS_GETGROUPS |
785fb66b |
669 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 |
670 | #endif |
79072805 |
671 | goto add_groups; |
672 | case ')': |
3280af22 |
673 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 |
674 | #ifdef HAS_GETGROUPS |
785fb66b |
675 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 |
676 | #endif |
79072805 |
677 | add_groups: |
79072805 |
678 | #ifdef HAS_GETGROUPS |
79072805 |
679 | { |
a0d0e21e |
680 | Groups_t gary[NGROUPS]; |
79072805 |
681 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
682 | while (--i >= 0) |
785fb66b |
683 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 |
684 | } |
685 | #endif |
29355cf7 |
686 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
687 | break; |
688 | case '*': |
689 | break; |
cd39f2b6 |
690 | #ifndef MACOS_TRADITIONAL |
79072805 |
691 | case '0': |
692 | break; |
cd39f2b6 |
693 | #endif |
a863c7d1 |
694 | #ifdef USE_THREADS |
695 | case '@': |
38a03e6e |
696 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
697 | break; |
698 | #endif /* USE_THREADS */ |
79072805 |
699 | } |
a0d0e21e |
700 | return 0; |
79072805 |
701 | } |
702 | |
703 | int |
864dbfa3 |
704 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
705 | { |
706 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
707 | |
708 | if (uf && uf->uf_val) |
709 | (*uf->uf_val)(uf->uf_index, sv); |
710 | return 0; |
711 | } |
712 | |
713 | int |
864dbfa3 |
714 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
715 | { |
716 | register char *s; |
88e89b8a |
717 | char *ptr; |
5aabfad6 |
718 | STRLEN len, klen; |
a0d0e21e |
719 | I32 i; |
1e422769 |
720 | |
a0d0e21e |
721 | s = SvPV(sv,len); |
5aabfad6 |
722 | ptr = MgPV(mg,klen); |
88e89b8a |
723 | my_setenv(ptr, s); |
1e422769 |
724 | |
a0d0e21e |
725 | #ifdef DYNAMIC_ENV_FETCH |
726 | /* We just undefd an environment var. Is a replacement */ |
727 | /* waiting in the wings? */ |
728 | if (!len) { |
5aabfad6 |
729 | SV **valp; |
6b88bc9c |
730 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 |
731 | s = SvPV(*valp, len); |
a0d0e21e |
732 | } |
733 | #endif |
1e422769 |
734 | |
39e571d4 |
735 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
736 | /* And you'll never guess what the dog had */ |
737 | /* in its mouth... */ |
3280af22 |
738 | if (PL_tainting) { |
1e422769 |
739 | MgTAINTEDDIR_off(mg); |
740 | #ifdef VMS |
5aabfad6 |
741 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
742 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
743 | struct stat sbuf; |
744 | int i = 0, j = 0; |
745 | |
746 | do { /* DCL$PATH may be a search list */ |
747 | while (1) { /* as may dev portion of any element */ |
748 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
749 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
750 | cando_by_name(S_IWUSR,0,elt) ) { |
751 | MgTAINTEDDIR_on(mg); |
752 | return 0; |
753 | } |
754 | } |
755 | if ((cp = strchr(elt, ':')) != Nullch) |
756 | *cp = '\0'; |
757 | if (my_trnlnm(elt, eltbuf, j++)) |
758 | elt = eltbuf; |
759 | else |
760 | break; |
761 | } |
762 | j = 0; |
763 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
764 | } |
765 | #endif /* VMS */ |
5aabfad6 |
766 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
767 | char *strend = s + len; |
463ee0b2 |
768 | |
769 | while (s < strend) { |
96827780 |
770 | char tmpbuf[256]; |
1e422769 |
771 | struct stat st; |
96827780 |
772 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
773 | s, strend, ':', &i); |
463ee0b2 |
774 | s++; |
96827780 |
775 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
776 | || *tmpbuf != '/' |
c6ed36e1 |
777 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
778 | MgTAINTEDDIR_on(mg); |
1e422769 |
779 | return 0; |
780 | } |
463ee0b2 |
781 | } |
79072805 |
782 | } |
783 | } |
39e571d4 |
784 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
785 | |
79072805 |
786 | return 0; |
787 | } |
788 | |
789 | int |
864dbfa3 |
790 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 |
791 | { |
2d8e6c8d |
792 | STRLEN n_a; |
793 | my_setenv(MgPV(mg,n_a),Nullch); |
85e6fe83 |
794 | return 0; |
795 | } |
796 | |
88e89b8a |
797 | int |
864dbfa3 |
798 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a |
799 | { |
800 | #if defined(VMS) |
cea2e8a9 |
801 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a |
802 | #else |
d58bf5aa |
803 | dTHR; |
3280af22 |
804 | if (PL_localizing) { |
fb73857a |
805 | HE* entry; |
2d8e6c8d |
806 | STRLEN n_a; |
fb73857a |
807 | magic_clear_all_env(sv,mg); |
808 | hv_iterinit((HV*)sv); |
809 | while (entry = hv_iternext((HV*)sv)) { |
810 | I32 keylen; |
811 | my_setenv(hv_iterkey(entry, &keylen), |
2d8e6c8d |
812 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a |
813 | } |
814 | } |
815 | #endif |
816 | return 0; |
817 | } |
818 | |
819 | int |
864dbfa3 |
820 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 |
821 | { |
3e3baf6d |
822 | #if defined(VMS) |
cea2e8a9 |
823 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d |
824 | #else |
7766f137 |
825 | # ifdef PERL_IMPLICIT_SYS |
826 | PerlEnv_clearenv(); |
827 | # else |
828 | # ifdef WIN32 |
3e3baf6d |
829 | char *envv = GetEnvironmentStrings(); |
830 | char *cur = envv; |
831 | STRLEN len; |
832 | while (*cur) { |
833 | char *end = strchr(cur,'='); |
834 | if (end && end != cur) { |
835 | *end = '\0'; |
836 | my_setenv(cur,Nullch); |
837 | *end = '='; |
ac5c734f |
838 | cur = end + strlen(end+1)+2; |
3e3baf6d |
839 | } |
840 | else if ((len = strlen(cur))) |
841 | cur += len+1; |
842 | } |
843 | FreeEnvironmentStrings(envv); |
7766f137 |
844 | # else |
845 | # ifdef CYGWIN |
2c2d71f5 |
846 | I32 i; |
847 | for (i = 0; environ[i]; i++) |
848 | Safefree(environ[i]); |
7766f137 |
849 | # else |
850 | # ifndef PERL_USE_SAFE_PUTENV |
66b1d557 |
851 | I32 i; |
852 | |
3280af22 |
853 | if (environ == PL_origenviron) |
f2517201 |
854 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 |
855 | else |
856 | for (i = 0; environ[i]; i++) |
f2517201 |
857 | safesysfree(environ[i]); |
7766f137 |
858 | # endif /* PERL_USE_SAFE_PUTENV */ |
859 | # endif /* CYGWIN */ |
f2517201 |
860 | |
66b1d557 |
861 | environ[0] = Nullch; |
862 | |
7766f137 |
863 | # endif /* WIN32 */ |
864 | # endif /* PERL_IMPLICIT_SYS */ |
f2517201 |
865 | #endif /* VMS */ |
3e3baf6d |
866 | return 0; |
66b1d557 |
867 | } |
868 | |
869 | int |
864dbfa3 |
870 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
871 | { |
872 | I32 i; |
2d8e6c8d |
873 | STRLEN n_a; |
88e89b8a |
874 | /* Are we fetching a signal entry? */ |
2d8e6c8d |
875 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
876 | if (i) { |
22c35a8c |
877 | if(PL_psig_ptr[i]) |
878 | sv_setsv(sv,PL_psig_ptr[i]); |
88e89b8a |
879 | else { |
ff68c719 |
880 | Sighandler_t sigstate = rsignal_state(i); |
881 | |
88e89b8a |
882 | /* cache state so we don't fetch it again */ |
ff68c719 |
883 | if(sigstate == SIG_IGN) |
88e89b8a |
884 | sv_setpv(sv,"IGNORE"); |
885 | else |
3280af22 |
886 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c |
887 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
888 | SvTEMP_off(sv); |
889 | } |
890 | } |
891 | return 0; |
892 | } |
893 | int |
864dbfa3 |
894 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a |
895 | { |
896 | I32 i; |
2d8e6c8d |
897 | STRLEN n_a; |
88e89b8a |
898 | /* Are we clearing a signal entry? */ |
2d8e6c8d |
899 | i = whichsig(MgPV(mg,n_a)); |
88e89b8a |
900 | if (i) { |
22c35a8c |
901 | if(PL_psig_ptr[i]) { |
902 | SvREFCNT_dec(PL_psig_ptr[i]); |
903 | PL_psig_ptr[i]=0; |
88e89b8a |
904 | } |
22c35a8c |
905 | if(PL_psig_name[i]) { |
906 | SvREFCNT_dec(PL_psig_name[i]); |
907 | PL_psig_name[i]=0; |
88e89b8a |
908 | } |
909 | } |
910 | return 0; |
911 | } |
3d37d572 |
912 | |
85e6fe83 |
913 | int |
864dbfa3 |
914 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
915 | { |
11343788 |
916 | dTHR; |
79072805 |
917 | register char *s; |
918 | I32 i; |
748a9306 |
919 | SV** svp; |
e72dc28c |
920 | STRLEN len; |
a0d0e21e |
921 | |
e72dc28c |
922 | s = MgPV(mg,len); |
748a9306 |
923 | if (*s == '_') { |
924 | if (strEQ(s,"__DIE__")) |
3280af22 |
925 | svp = &PL_diehook; |
748a9306 |
926 | else if (strEQ(s,"__WARN__")) |
3280af22 |
927 | svp = &PL_warnhook; |
748a9306 |
928 | else |
cea2e8a9 |
929 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 |
930 | i = 0; |
4633a7c4 |
931 | if (*svp) { |
932 | SvREFCNT_dec(*svp); |
933 | *svp = 0; |
934 | } |
748a9306 |
935 | } |
936 | else { |
937 | i = whichsig(s); /* ...no, a brick */ |
938 | if (!i) { |
599cee73 |
939 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
cea2e8a9 |
940 | Perl_warner(aTHX_ WARN_SIGNAL, "No such signal: SIG%s", s); |
748a9306 |
941 | return 0; |
942 | } |
22c35a8c |
943 | SvREFCNT_dec(PL_psig_name[i]); |
944 | SvREFCNT_dec(PL_psig_ptr[i]); |
945 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
946 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c |
947 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c |
948 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 |
949 | } |
a0d0e21e |
950 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
951 | if (i) |
3280af22 |
952 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
953 | else |
954 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
955 | return 0; |
956 | } |
e72dc28c |
957 | s = SvPV_force(sv,len); |
748a9306 |
958 | if (strEQ(s,"IGNORE")) { |
959 | if (i) |
ff68c719 |
960 | (void)rsignal(i, SIG_IGN); |
748a9306 |
961 | else |
962 | *svp = 0; |
963 | } |
964 | else if (strEQ(s,"DEFAULT") || !*s) { |
965 | if (i) |
ff68c719 |
966 | (void)rsignal(i, SIG_DFL); |
748a9306 |
967 | else |
968 | *svp = 0; |
969 | } |
79072805 |
970 | else { |
5aabfad6 |
971 | /* |
972 | * We should warn if HINT_STRICT_REFS, but without |
973 | * access to a known hint bit in a known OP, we can't |
974 | * tell whether HINT_STRICT_REFS is in force or not. |
975 | */ |
46fc3d4c |
976 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c |
977 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 |
978 | if (i) |
3280af22 |
979 | (void)rsignal(i, PL_sighandlerp); |
748a9306 |
980 | else |
981 | *svp = SvREFCNT_inc(sv); |
79072805 |
982 | } |
983 | return 0; |
984 | } |
985 | |
986 | int |
864dbfa3 |
987 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
988 | { |
3280af22 |
989 | PL_sub_generation++; |
463ee0b2 |
990 | return 0; |
991 | } |
992 | |
993 | int |
864dbfa3 |
994 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
995 | { |
a0d0e21e |
996 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 |
997 | PL_amagic_generation++; |
463ee0b2 |
998 | |
a0d0e21e |
999 | return 0; |
1000 | } |
463ee0b2 |
1001 | |
946ec16e |
1002 | int |
864dbfa3 |
1003 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1004 | { |
1005 | HV *hv = (HV*)LvTARG(sv); |
1006 | HE *entry; |
1007 | I32 i = 0; |
1008 | |
1009 | if (hv) { |
1010 | (void) hv_iterinit(hv); |
33c27489 |
1011 | if (! SvTIED_mg((SV*)hv, 'P')) |
6ff81951 |
1012 | i = HvKEYS(hv); |
1013 | else { |
1014 | /*SUPPRESS 560*/ |
1015 | while (entry = hv_iternext(hv)) { |
1016 | i++; |
1017 | } |
1018 | } |
1019 | } |
1020 | |
1021 | sv_setiv(sv, (IV)i); |
1022 | return 0; |
1023 | } |
1024 | |
1025 | int |
864dbfa3 |
1026 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e |
1027 | { |
1028 | if (LvTARG(sv)) { |
1029 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
946ec16e |
1030 | } |
1031 | return 0; |
93965878 |
1032 | } |
946ec16e |
1033 | |
e336de0d |
1034 | /* caller is responsible for stack switching/cleanup */ |
565764a8 |
1035 | STATIC int |
cea2e8a9 |
1036 | S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
1037 | { |
1038 | dSP; |
463ee0b2 |
1039 | |
924508f0 |
1040 | PUSHMARK(SP); |
1041 | EXTEND(SP, n); |
33c27489 |
1042 | PUSHs(SvTIED_obj(sv, mg)); |
93965878 |
1043 | if (n > 1) { |
1044 | if (mg->mg_ptr) { |
565764a8 |
1045 | if (mg->mg_len >= 0) |
79cb57f6 |
1046 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 |
1047 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
1048 | PUSHs((SV*)mg->mg_ptr); |
1049 | } |
1050 | else if (mg->mg_type == 'p') { |
565764a8 |
1051 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
1052 | } |
1053 | } |
1054 | if (n > 2) { |
1055 | PUSHs(val); |
88e89b8a |
1056 | } |
463ee0b2 |
1057 | PUTBACK; |
1058 | |
864dbfa3 |
1059 | return call_method(meth, flags); |
946ec16e |
1060 | } |
1061 | |
76e3520e |
1062 | STATIC int |
cea2e8a9 |
1063 | S_magic_methpack(pTHX_ SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1064 | { |
1065 | dSP; |
463ee0b2 |
1066 | |
a0d0e21e |
1067 | ENTER; |
1068 | SAVETMPS; |
e788e7d3 |
1069 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 |
1070 | |
33c27489 |
1071 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 |
1072 | sv_setsv(sv, *PL_stack_sp--); |
93965878 |
1073 | } |
463ee0b2 |
1074 | |
d3acc0f7 |
1075 | POPSTACK; |
a0d0e21e |
1076 | FREETMPS; |
1077 | LEAVE; |
1078 | return 0; |
1079 | } |
463ee0b2 |
1080 | |
a0d0e21e |
1081 | int |
864dbfa3 |
1082 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1083 | { |
1084 | magic_methpack(sv,mg,"FETCH"); |
1085 | if (mg->mg_ptr) |
1086 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1087 | return 0; |
1088 | } |
1089 | |
1090 | int |
864dbfa3 |
1091 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d |
1092 | { |
1093 | dSP; |
a60c0954 |
1094 | ENTER; |
e788e7d3 |
1095 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1096 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 |
1097 | POPSTACK; |
a60c0954 |
1098 | LEAVE; |
463ee0b2 |
1099 | return 0; |
1100 | } |
1101 | |
1102 | int |
864dbfa3 |
1103 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1104 | { |
a0d0e21e |
1105 | return magic_methpack(sv,mg,"DELETE"); |
1106 | } |
463ee0b2 |
1107 | |
93965878 |
1108 | |
1109 | U32 |
864dbfa3 |
1110 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
93965878 |
1111 | { |
e336de0d |
1112 | dSP; |
93965878 |
1113 | U32 retval = 0; |
1114 | |
1115 | ENTER; |
1116 | SAVETMPS; |
e788e7d3 |
1117 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 |
1118 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 |
1119 | sv = *PL_stack_sp--; |
a60c0954 |
1120 | retval = (U32) SvIV(sv)-1; |
93965878 |
1121 | } |
d3acc0f7 |
1122 | POPSTACK; |
93965878 |
1123 | FREETMPS; |
1124 | LEAVE; |
1125 | return retval; |
1126 | } |
1127 | |
cea2e8a9 |
1128 | int |
1129 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1130 | { |
1131 | dSP; |
463ee0b2 |
1132 | |
e336de0d |
1133 | ENTER; |
e788e7d3 |
1134 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1135 | PUSHMARK(SP); |
33c27489 |
1136 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1137 | PUTBACK; |
864dbfa3 |
1138 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 |
1139 | POPSTACK; |
a60c0954 |
1140 | LEAVE; |
463ee0b2 |
1141 | return 0; |
1142 | } |
1143 | |
1144 | int |
864dbfa3 |
1145 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1146 | { |
463ee0b2 |
1147 | dSP; |
dff6d3cd |
1148 | const char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1149 | |
1150 | ENTER; |
a0d0e21e |
1151 | SAVETMPS; |
e788e7d3 |
1152 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 |
1153 | PUSHMARK(SP); |
1154 | EXTEND(SP, 2); |
33c27489 |
1155 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 |
1156 | if (SvOK(key)) |
1157 | PUSHs(key); |
1158 | PUTBACK; |
1159 | |
864dbfa3 |
1160 | if (call_method(meth, G_SCALAR)) |
3280af22 |
1161 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 |
1162 | |
d3acc0f7 |
1163 | POPSTACK; |
a0d0e21e |
1164 | FREETMPS; |
1165 | LEAVE; |
79072805 |
1166 | return 0; |
1167 | } |
1168 | |
1169 | int |
864dbfa3 |
1170 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1171 | { |
1172 | return magic_methpack(sv,mg,"EXISTS"); |
1173 | } |
1174 | |
1175 | int |
864dbfa3 |
1176 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1177 | { |
11343788 |
1178 | dTHR; |
79072805 |
1179 | OP *o; |
1180 | I32 i; |
1181 | GV* gv; |
1182 | SV** svp; |
2d8e6c8d |
1183 | STRLEN n_a; |
79072805 |
1184 | |
3280af22 |
1185 | gv = PL_DBline; |
79072805 |
1186 | i = SvTRUE(sv); |
188ea221 |
1187 | svp = av_fetch(GvAV(gv), |
2d8e6c8d |
1188 | atoi(MgPV(mg,n_a)), FALSE); |
57b2e452 |
1189 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) |
93a17b20 |
1190 | o->op_private = i; |
0453d815 |
1191 | else if (ckWARN_d(WARN_INTERNAL)) |
1192 | Perl_warner(aTHX_ WARN_INTERNAL, "Can't break at that line\n"); |
79072805 |
1193 | return 0; |
1194 | } |
1195 | |
1196 | int |
864dbfa3 |
1197 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1198 | { |
0f15f207 |
1199 | dTHR; |
3280af22 |
1200 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 |
1201 | return 0; |
1202 | } |
1203 | |
1204 | int |
864dbfa3 |
1205 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1206 | { |
0f15f207 |
1207 | dTHR; |
3280af22 |
1208 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e |
1209 | return 0; |
1210 | } |
1211 | |
1212 | int |
864dbfa3 |
1213 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1214 | { |
1215 | SV* lsv = LvTARG(sv); |
1216 | |
1217 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1218 | mg = mg_find(lsv, 'g'); |
565764a8 |
1219 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1220 | dTHR; |
a0ed51b3 |
1221 | I32 i = mg->mg_len; |
1222 | if (IN_UTF8) |
1223 | sv_pos_b2u(lsv, &i); |
1224 | sv_setiv(sv, i + PL_curcop->cop_arybase); |
a0d0e21e |
1225 | return 0; |
1226 | } |
1227 | } |
1228 | (void)SvOK_off(sv); |
1229 | return 0; |
1230 | } |
1231 | |
1232 | int |
864dbfa3 |
1233 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e |
1234 | { |
1235 | SV* lsv = LvTARG(sv); |
1236 | SSize_t pos; |
1237 | STRLEN len; |
a0ed51b3 |
1238 | STRLEN ulen; |
c485e607 |
1239 | dTHR; |
a0d0e21e |
1240 | |
1241 | mg = 0; |
1242 | |
1243 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1244 | mg = mg_find(lsv, 'g'); |
1245 | if (!mg) { |
1246 | if (!SvOK(sv)) |
1247 | return 0; |
1248 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1249 | mg = mg_find(lsv, 'g'); |
1250 | } |
1251 | else if (!SvOK(sv)) { |
565764a8 |
1252 | mg->mg_len = -1; |
a0d0e21e |
1253 | return 0; |
1254 | } |
1255 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1256 | |
c485e607 |
1257 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 |
1258 | |
1259 | if (IN_UTF8) { |
1260 | ulen = sv_len_utf8(lsv); |
1261 | if (ulen) |
1262 | len = ulen; |
1263 | else |
1264 | ulen = 0; |
1265 | } |
1266 | |
a0d0e21e |
1267 | if (pos < 0) { |
1268 | pos += len; |
1269 | if (pos < 0) |
1270 | pos = 0; |
1271 | } |
1272 | else if (pos > len) |
1273 | pos = len; |
a0ed51b3 |
1274 | |
1275 | if (ulen) { |
1276 | I32 p = pos; |
1277 | sv_pos_u2b(lsv, &p, 0); |
1278 | pos = p; |
1279 | } |
1280 | |
565764a8 |
1281 | mg->mg_len = pos; |
71be2cbc |
1282 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1283 | |
79072805 |
1284 | return 0; |
1285 | } |
1286 | |
1287 | int |
864dbfa3 |
1288 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1289 | { |
8646b087 |
1290 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1291 | SvFAKE_off(sv); |
946ec16e |
1292 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1293 | SvFAKE_on(sv); |
1294 | } |
1295 | else |
946ec16e |
1296 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1297 | return 0; |
1298 | } |
1299 | |
1300 | int |
864dbfa3 |
1301 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1302 | { |
1303 | register char *s; |
1304 | GV* gv; |
2d8e6c8d |
1305 | STRLEN n_a; |
79072805 |
1306 | |
1307 | if (!SvOK(sv)) |
1308 | return 0; |
2d8e6c8d |
1309 | s = SvPV(sv, n_a); |
79072805 |
1310 | if (*s == '*' && s[1]) |
1311 | s++; |
85e6fe83 |
1312 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1313 | if (sv == (SV*)gv) |
1314 | return 0; |
1315 | if (GvGP(sv)) |
88e89b8a |
1316 | gp_free((GV*)sv); |
79072805 |
1317 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1318 | return 0; |
1319 | } |
1320 | |
1321 | int |
864dbfa3 |
1322 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1323 | { |
1324 | STRLEN len; |
1325 | SV *lsv = LvTARG(sv); |
1326 | char *tmps = SvPV(lsv,len); |
1327 | I32 offs = LvTARGOFF(sv); |
1328 | I32 rem = LvTARGLEN(sv); |
1329 | |
1330 | if (offs > len) |
1331 | offs = len; |
1332 | if (rem + offs > len) |
1333 | rem = len - offs; |
1334 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); |
1335 | return 0; |
1336 | } |
1337 | |
1338 | int |
864dbfa3 |
1339 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1340 | { |
8990e307 |
1341 | STRLEN len; |
1342 | char *tmps = SvPV(sv,len); |
1343 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1344 | return 0; |
1345 | } |
1346 | |
1347 | int |
864dbfa3 |
1348 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1349 | { |
a863c7d1 |
1350 | dTHR; |
565764a8 |
1351 | TAINT_IF((mg->mg_len & 1) || |
1352 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1353 | return 0; |
1354 | } |
1355 | |
1356 | int |
864dbfa3 |
1357 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 |
1358 | { |
11343788 |
1359 | dTHR; |
3280af22 |
1360 | if (PL_localizing) { |
1361 | if (PL_localizing == 1) |
565764a8 |
1362 | mg->mg_len <<= 1; |
748a9306 |
1363 | else |
565764a8 |
1364 | mg->mg_len >>= 1; |
a0d0e21e |
1365 | } |
3280af22 |
1366 | else if (PL_tainted) |
565764a8 |
1367 | mg->mg_len |= 1; |
748a9306 |
1368 | else |
565764a8 |
1369 | mg->mg_len &= ~1; |
463ee0b2 |
1370 | return 0; |
1371 | } |
1372 | |
1373 | int |
864dbfa3 |
1374 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 |
1375 | { |
1376 | SV *lsv = LvTARG(sv); |
6ff81951 |
1377 | |
1378 | if (!lsv) { |
1379 | SvOK_off(sv); |
1380 | return 0; |
1381 | } |
6ff81951 |
1382 | |
81e118e0 |
1383 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 |
1384 | return 0; |
1385 | } |
1386 | |
1387 | int |
864dbfa3 |
1388 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1389 | { |
1390 | do_vecset(sv); /* XXX slurp this routine */ |
1391 | return 0; |
1392 | } |
1393 | |
1394 | int |
864dbfa3 |
1395 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc |
1396 | { |
71be2cbc |
1397 | SV *targ = Nullsv; |
5f05dabc |
1398 | if (LvTARGLEN(sv)) { |
68dc0745 |
1399 | if (mg->mg_obj) { |
74e13ce4 |
1400 | SV *ahv = LvTARG(sv); |
1401 | if (SvTYPE(ahv) == SVt_PVHV) { |
1402 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1403 | if (he) |
1404 | targ = HeVAL(he); |
1405 | } |
1406 | else { |
1407 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); |
1408 | if (svp) |
1409 | targ = *svp; |
1410 | } |
68dc0745 |
1411 | } |
1412 | else { |
3c78fafa |
1413 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1414 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1415 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1416 | } |
3280af22 |
1417 | if (targ && targ != &PL_sv_undef) { |
e858de61 |
1418 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1419 | /* somebody else defined it for us */ |
1420 | SvREFCNT_dec(LvTARG(sv)); |
1421 | LvTARG(sv) = SvREFCNT_inc(targ); |
1422 | LvTARGLEN(sv) = 0; |
1423 | SvREFCNT_dec(mg->mg_obj); |
1424 | mg->mg_obj = Nullsv; |
1425 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1426 | } |
5f05dabc |
1427 | } |
71be2cbc |
1428 | else |
1429 | targ = LvTARG(sv); |
3280af22 |
1430 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc |
1431 | return 0; |
1432 | } |
1433 | |
1434 | int |
864dbfa3 |
1435 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc |
1436 | { |
1437 | if (LvTARGLEN(sv)) |
68dc0745 |
1438 | vivify_defelem(sv); |
1439 | if (LvTARG(sv)) { |
5f05dabc |
1440 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1441 | SvSETMAGIC(LvTARG(sv)); |
1442 | } |
5f05dabc |
1443 | return 0; |
1444 | } |
1445 | |
71be2cbc |
1446 | void |
864dbfa3 |
1447 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc |
1448 | { |
e858de61 |
1449 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 |
1450 | MAGIC *mg; |
1451 | SV *value = Nullsv; |
71be2cbc |
1452 | |
68dc0745 |
1453 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1454 | return; |
68dc0745 |
1455 | if (mg->mg_obj) { |
74e13ce4 |
1456 | SV *ahv = LvTARG(sv); |
2d8e6c8d |
1457 | STRLEN n_a; |
74e13ce4 |
1458 | if (SvTYPE(ahv) == SVt_PVHV) { |
af7f9c15 |
1459 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1460 | if (he) |
1461 | value = HeVAL(he); |
1462 | } |
1463 | else { |
af7f9c15 |
1464 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 |
1465 | if (svp) |
1466 | value = *svp; |
1467 | } |
3280af22 |
1468 | if (!value || value == &PL_sv_undef) |
cea2e8a9 |
1469 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc |
1470 | } |
68dc0745 |
1471 | else { |
1472 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1473 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1474 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1475 | else { |
1476 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
3280af22 |
1477 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 |
1478 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 |
1479 | } |
1480 | } |
3e3baf6d |
1481 | (void)SvREFCNT_inc(value); |
68dc0745 |
1482 | SvREFCNT_dec(LvTARG(sv)); |
1483 | LvTARG(sv) = value; |
71be2cbc |
1484 | LvTARGLEN(sv) = 0; |
68dc0745 |
1485 | SvREFCNT_dec(mg->mg_obj); |
1486 | mg->mg_obj = Nullsv; |
1487 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1488 | } |
1489 | |
1490 | int |
864dbfa3 |
1491 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 |
1492 | { |
1493 | AV *av = (AV*)mg->mg_obj; |
1494 | SV **svp = AvARRAY(av); |
1495 | I32 i = AvFILLp(av); |
1496 | while (i >= 0) { |
1497 | if (svp[i] && svp[i] != &PL_sv_undef) { |
1498 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 |
1499 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 |
1500 | /* XXX Should we check that it hasn't changed? */ |
1501 | SvRV(svp[i]) = 0; |
1502 | SvOK_off(svp[i]); |
1503 | SvWEAKREF_off(svp[i]); |
1504 | svp[i] = &PL_sv_undef; |
1505 | } |
1506 | i--; |
1507 | } |
1508 | return 0; |
1509 | } |
1510 | |
1511 | int |
864dbfa3 |
1512 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 |
1513 | { |
565764a8 |
1514 | mg->mg_len = -1; |
c6496cc7 |
1515 | SvSCREAM_off(sv); |
93a17b20 |
1516 | return 0; |
1517 | } |
1518 | |
1519 | int |
864dbfa3 |
1520 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1521 | { |
463ee0b2 |
1522 | sv_unmagic(sv, 'B'); |
79072805 |
1523 | SvVALID_off(sv); |
1524 | return 0; |
1525 | } |
1526 | |
1527 | int |
864dbfa3 |
1528 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff |
1529 | { |
1530 | sv_unmagic(sv, 'f'); |
1531 | SvCOMPILED_off(sv); |
1532 | return 0; |
1533 | } |
1534 | |
1535 | int |
864dbfa3 |
1536 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1537 | { |
1538 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1539 | |
1540 | if (uf && uf->uf_set) |
1541 | (*uf->uf_set)(uf->uf_index, sv); |
1542 | return 0; |
1543 | } |
1544 | |
c277df42 |
1545 | int |
864dbfa3 |
1546 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 |
1547 | { |
1548 | regexp *re = (regexp *)mg->mg_obj; |
1549 | ReREFCNT_dec(re); |
1550 | return 0; |
1551 | } |
1552 | |
7a4c00b4 |
1553 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1554 | int |
864dbfa3 |
1555 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 |
1556 | { |
1557 | /* |
838b5b74 |
1558 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 |
1559 | * and vanished with a faint plop. |
1560 | */ |
7a4c00b4 |
1561 | if (mg->mg_ptr) { |
1562 | Safefree(mg->mg_ptr); |
1563 | mg->mg_ptr = NULL; |
565764a8 |
1564 | mg->mg_len = -1; |
7a4c00b4 |
1565 | } |
bbce6d69 |
1566 | return 0; |
1567 | } |
7a4c00b4 |
1568 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1569 | |
1570 | int |
864dbfa3 |
1571 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 |
1572 | { |
11343788 |
1573 | dTHR; |
79072805 |
1574 | register char *s; |
1575 | I32 i; |
8990e307 |
1576 | STRLEN len; |
79072805 |
1577 | switch (*mg->mg_ptr) { |
748a9306 |
1578 | case '\001': /* ^A */ |
3280af22 |
1579 | sv_setsv(PL_bodytarget, sv); |
748a9306 |
1580 | break; |
49460fe6 |
1581 | case '\003': /* ^C */ |
1582 | PL_minus_c = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1583 | break; |
1584 | |
79072805 |
1585 | case '\004': /* ^D */ |
3280af22 |
1586 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1587 | DEBUG_x(dump_all()); |
1588 | break; |
28f23441 |
1589 | case '\005': /* ^E */ |
cd39f2b6 |
1590 | #ifdef MACOS_TRADITIONAL |
1591 | gLastMacOSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 |
1592 | #else |
cd39f2b6 |
1593 | # ifdef VMS |
1594 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf |
1595 | # else |
cd39f2b6 |
1596 | # ifdef WIN32 |
1597 | SetLastError( SvIV(sv) ); |
1598 | # else |
1599 | # ifndef OS2 |
f86702cc |
1600 | /* will anyone ever use this? */ |
1601 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
cd39f2b6 |
1602 | # endif |
048c1ddf |
1603 | # endif |
1604 | # endif |
22fae026 |
1605 | #endif |
28f23441 |
1606 | break; |
79072805 |
1607 | case '\006': /* ^F */ |
3280af22 |
1608 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1609 | break; |
a0d0e21e |
1610 | case '\010': /* ^H */ |
3280af22 |
1611 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e |
1612 | break; |
9d116dd7 |
1613 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 |
1614 | if (PL_inplace) |
1615 | Safefree(PL_inplace); |
79072805 |
1616 | if (SvOK(sv)) |
2d8e6c8d |
1617 | PL_inplace = savepv(SvPV(sv,len)); |
79072805 |
1618 | else |
3280af22 |
1619 | PL_inplace = Nullch; |
79072805 |
1620 | break; |
28f23441 |
1621 | case '\017': /* ^O */ |
3280af22 |
1622 | if (PL_osname) |
1623 | Safefree(PL_osname); |
28f23441 |
1624 | if (SvOK(sv)) |
2d8e6c8d |
1625 | PL_osname = savepv(SvPV(sv,len)); |
28f23441 |
1626 | else |
3280af22 |
1627 | PL_osname = Nullch; |
28f23441 |
1628 | break; |
79072805 |
1629 | case '\020': /* ^P */ |
3280af22 |
1630 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1ee4443e |
1631 | if (PL_perldb && !PL_DBsingle) |
1632 | init_debugger(); |
79072805 |
1633 | break; |
1634 | case '\024': /* ^T */ |
88e89b8a |
1635 | #ifdef BIG_TIME |
6b88bc9c |
1636 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a |
1637 | #else |
3280af22 |
1638 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1639 | #endif |
79072805 |
1640 | break; |
4438c4b7 |
1641 | case '\027': /* ^W & $^Warnings */ |
1642 | if (*(mg->mg_ptr+1) == '\0') { |
1643 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1644 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1645 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 |
1646 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 |
1647 | } |
599cee73 |
1648 | } |
4438c4b7 |
1649 | else if (strEQ(mg->mg_ptr, "\027arnings")) { |
1650 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1651 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) { |
1652 | PL_compiling.cop_warnings = WARN_ALL; |
1653 | PL_dowarn |= G_WARN_ONCE ; |
1654 | } |
1655 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) |
1656 | PL_compiling.cop_warnings = WARN_NONE; |
1657 | else { |
1658 | if (specialWARN(PL_compiling.cop_warnings)) |
1659 | PL_compiling.cop_warnings = newSVsv(sv) ; |
1660 | else |
1661 | sv_setsv(PL_compiling.cop_warnings, sv); |
1662 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) |
1663 | PL_dowarn |= G_WARN_ONCE ; |
1664 | } |
1665 | } |
971a9dd3 |
1666 | } |
79072805 |
1667 | break; |
1668 | case '.': |
3280af22 |
1669 | if (PL_localizing) { |
1670 | if (PL_localizing == 1) |
7766f137 |
1671 | SAVESPTR(PL_last_in_gv); |
748a9306 |
1672 | } |
3280af22 |
1673 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1674 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); |
79072805 |
1675 | break; |
1676 | case '^': |
3280af22 |
1677 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1678 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1679 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1680 | break; |
1681 | case '~': |
3280af22 |
1682 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
2d8e6c8d |
1683 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,len)); |
3280af22 |
1684 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1685 | break; |
1686 | case '=': |
3280af22 |
1687 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1688 | break; |
1689 | case '-': |
3280af22 |
1690 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1691 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
1692 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; |
79072805 |
1693 | break; |
1694 | case '%': |
3280af22 |
1695 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1696 | break; |
1697 | case '|': |
4b65379b |
1698 | { |
3280af22 |
1699 | IO *io = GvIOp(PL_defoutgv); |
4b65379b |
1700 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1701 | IoFLAGS(io) &= ~IOf_FLUSH; |
1702 | else { |
1703 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1704 | PerlIO *ofp = IoOFP(io); |
1705 | if (ofp) |
1706 | (void)PerlIO_flush(ofp); |
1707 | IoFLAGS(io) |= IOf_FLUSH; |
1708 | } |
1709 | } |
79072805 |
1710 | } |
1711 | break; |
1712 | case '*': |
463ee0b2 |
1713 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 |
1714 | PL_multiline = (i != 0); |
79072805 |
1715 | break; |
1716 | case '/': |
3280af22 |
1717 | SvREFCNT_dec(PL_nrs); |
1718 | PL_nrs = newSVsv(sv); |
1719 | SvREFCNT_dec(PL_rs); |
1720 | PL_rs = SvREFCNT_inc(PL_nrs); |
79072805 |
1721 | break; |
1722 | case '\\': |
3280af22 |
1723 | if (PL_ors) |
1724 | Safefree(PL_ors); |
009c130f |
1725 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
1726 | s = SvPV(sv,PL_orslen); |
1727 | PL_ors = savepvn(s,PL_orslen); |
1728 | } |
e3c19b7b |
1729 | else { |
3280af22 |
1730 | PL_ors = Nullch; |
1731 | PL_orslen = 0; |
e3c19b7b |
1732 | } |
79072805 |
1733 | break; |
1734 | case ',': |
3280af22 |
1735 | if (PL_ofs) |
1736 | Safefree(PL_ofs); |
1737 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); |
79072805 |
1738 | break; |
1739 | case '#': |
3280af22 |
1740 | if (PL_ofmt) |
1741 | Safefree(PL_ofmt); |
2d8e6c8d |
1742 | PL_ofmt = savepv(SvPV(sv,len)); |
79072805 |
1743 | break; |
1744 | case '[': |
3280af22 |
1745 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1746 | break; |
1747 | case '?': |
ff0cee69 |
1748 | #ifdef COMPLEX_STATUS |
6b88bc9c |
1749 | if (PL_localizing == 2) { |
1750 | PL_statusvalue = LvTARGOFF(sv); |
1751 | PL_statusvalue_vms = LvTARGLEN(sv); |
ff0cee69 |
1752 | } |
1753 | else |
1754 | #endif |
1755 | #ifdef VMSISH_STATUS |
1756 | if (VMSISH_STATUS) |
1757 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1758 | else |
1759 | #endif |
1760 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1761 | break; |
1762 | case '!': |
78987ded |
1763 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc |
1764 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1765 | break; |
1766 | case '<': |
3280af22 |
1767 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1768 | if (PL_delaymagic) { |
1769 | PL_delaymagic |= DM_RUID; |
79072805 |
1770 | break; /* don't do magic till later */ |
1771 | } |
1772 | #ifdef HAS_SETRUID |
b28d0864 |
1773 | (void)setruid((Uid_t)PL_uid); |
79072805 |
1774 | #else |
1775 | #ifdef HAS_SETREUID |
3280af22 |
1776 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 |
1777 | #else |
85e6fe83 |
1778 | #ifdef HAS_SETRESUID |
b28d0864 |
1779 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1780 | #else |
b28d0864 |
1781 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1782 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
1783 | else { |
d8eceb89 |
1784 | PL_uid = PerlProc_getuid(); |
cea2e8a9 |
1785 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e |
1786 | } |
79072805 |
1787 | #endif |
1788 | #endif |
85e6fe83 |
1789 | #endif |
d8eceb89 |
1790 | PL_uid = PerlProc_getuid(); |
3280af22 |
1791 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1792 | break; |
1793 | case '>': |
3280af22 |
1794 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1795 | if (PL_delaymagic) { |
1796 | PL_delaymagic |= DM_EUID; |
79072805 |
1797 | break; /* don't do magic till later */ |
1798 | } |
1799 | #ifdef HAS_SETEUID |
3280af22 |
1800 | (void)seteuid((Uid_t)PL_euid); |
79072805 |
1801 | #else |
1802 | #ifdef HAS_SETREUID |
b28d0864 |
1803 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 |
1804 | #else |
1805 | #ifdef HAS_SETRESUID |
6b88bc9c |
1806 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 |
1807 | #else |
b28d0864 |
1808 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1809 | PerlProc_setuid(PL_euid); |
a0d0e21e |
1810 | else { |
e8ee3774 |
1811 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 |
1812 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e |
1813 | } |
79072805 |
1814 | #endif |
1815 | #endif |
85e6fe83 |
1816 | #endif |
d8eceb89 |
1817 | PL_euid = PerlProc_geteuid(); |
3280af22 |
1818 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1819 | break; |
1820 | case '(': |
3280af22 |
1821 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1822 | if (PL_delaymagic) { |
1823 | PL_delaymagic |= DM_RGID; |
79072805 |
1824 | break; /* don't do magic till later */ |
1825 | } |
1826 | #ifdef HAS_SETRGID |
b28d0864 |
1827 | (void)setrgid((Gid_t)PL_gid); |
79072805 |
1828 | #else |
1829 | #ifdef HAS_SETREGID |
3280af22 |
1830 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 |
1831 | #else |
1832 | #ifdef HAS_SETRESGID |
b28d0864 |
1833 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1834 | #else |
b28d0864 |
1835 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1836 | (void)PerlProc_setgid(PL_gid); |
748a9306 |
1837 | else { |
d8eceb89 |
1838 | PL_gid = PerlProc_getgid(); |
cea2e8a9 |
1839 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 |
1840 | } |
79072805 |
1841 | #endif |
1842 | #endif |
85e6fe83 |
1843 | #endif |
d8eceb89 |
1844 | PL_gid = PerlProc_getgid(); |
3280af22 |
1845 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1846 | break; |
1847 | case ')': |
5cd24f17 |
1848 | #ifdef HAS_SETGROUPS |
1849 | { |
2d8e6c8d |
1850 | char *p = SvPV(sv, len); |
5cd24f17 |
1851 | Groups_t gary[NGROUPS]; |
1852 | |
5cd24f17 |
1853 | while (isSPACE(*p)) |
1854 | ++p; |
2d4389e4 |
1855 | PL_egid = Atol(p); |
5cd24f17 |
1856 | for (i = 0; i < NGROUPS; ++i) { |
1857 | while (*p && !isSPACE(*p)) |
1858 | ++p; |
1859 | while (isSPACE(*p)) |
1860 | ++p; |
1861 | if (!*p) |
1862 | break; |
2d4389e4 |
1863 | gary[i] = Atol(p); |
5cd24f17 |
1864 | } |
8cc95fdb |
1865 | if (i) |
1866 | (void)setgroups(i, gary); |
5cd24f17 |
1867 | } |
1868 | #else /* HAS_SETGROUPS */ |
b28d0864 |
1869 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1870 | #endif /* HAS_SETGROUPS */ |
3280af22 |
1871 | if (PL_delaymagic) { |
1872 | PL_delaymagic |= DM_EGID; |
79072805 |
1873 | break; /* don't do magic till later */ |
1874 | } |
1875 | #ifdef HAS_SETEGID |
3280af22 |
1876 | (void)setegid((Gid_t)PL_egid); |
79072805 |
1877 | #else |
1878 | #ifdef HAS_SETREGID |
b28d0864 |
1879 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 |
1880 | #else |
1881 | #ifdef HAS_SETRESGID |
b28d0864 |
1882 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 |
1883 | #else |
b28d0864 |
1884 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1885 | (void)PerlProc_setgid(PL_egid); |
748a9306 |
1886 | else { |
d8eceb89 |
1887 | PL_egid = PerlProc_getegid(); |
cea2e8a9 |
1888 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 |
1889 | } |
79072805 |
1890 | #endif |
1891 | #endif |
85e6fe83 |
1892 | #endif |
d8eceb89 |
1893 | PL_egid = PerlProc_getegid(); |
3280af22 |
1894 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 |
1895 | break; |
1896 | case ':': |
2d8e6c8d |
1897 | PL_chopset = SvPV_force(sv,len); |
79072805 |
1898 | break; |
cd39f2b6 |
1899 | #ifndef MACOS_TRADITIONAL |
79072805 |
1900 | case '0': |
3280af22 |
1901 | if (!PL_origalen) { |
1902 | s = PL_origargv[0]; |
79072805 |
1903 | s += strlen(s); |
1904 | /* See if all the arguments are contiguous in memory */ |
3280af22 |
1905 | for (i = 1; i < PL_origargc; i++) { |
1906 | if (PL_origargv[i] == s + 1 |
fb73857a |
1907 | #ifdef OS2 |
6b88bc9c |
1908 | || PL_origargv[i] == s + 2 |
fb73857a |
1909 | #endif |
1910 | ) |
379c4362 |
1911 | { |
1912 | ++s; |
1913 | s += strlen(s); /* this one is ok too */ |
1914 | } |
fb73857a |
1915 | else |
1916 | break; |
79072805 |
1917 | } |
bbce6d69 |
1918 | /* can grab env area too? */ |
3280af22 |
1919 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a |
1920 | #ifdef OS2 |
6b88bc9c |
1921 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a |
1922 | #endif |
1923 | )) { |
66b1d557 |
1924 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
1925 | /* force copy of environment */ |
3280af22 |
1926 | for (i = 0; PL_origenviron[i]; i++) |
379c4362 |
1927 | if (PL_origenviron[i] == s + 1) { |
1928 | ++s; |
1929 | s += strlen(s); |
1930 | } |
fb73857a |
1931 | else |
1932 | break; |
79072805 |
1933 | } |
3280af22 |
1934 | PL_origalen = s - PL_origargv[0]; |
79072805 |
1935 | } |
a0d0e21e |
1936 | s = SvPV_force(sv,len); |
8990e307 |
1937 | i = len; |
3280af22 |
1938 | if (i >= PL_origalen) { |
1939 | i = PL_origalen; |
fb73857a |
1940 | /* don't allow system to limit $0 seen by script */ |
1941 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
3280af22 |
1942 | Copy(s, PL_origargv[0], i, char); |
1943 | s = PL_origargv[0]+i; |
fb73857a |
1944 | *s = '\0'; |
79072805 |
1945 | } |
1946 | else { |
3280af22 |
1947 | Copy(s, PL_origargv[0], i, char); |
1948 | s = PL_origargv[0]+i; |
79072805 |
1949 | *s++ = '\0'; |
3280af22 |
1950 | while (++i < PL_origalen) |
8990e307 |
1951 | *s++ = ' '; |
3280af22 |
1952 | s = PL_origargv[0]+i; |
1953 | for (i = 1; i < PL_origargc; i++) |
1954 | PL_origargv[i] = Nullch; |
79072805 |
1955 | } |
1956 | break; |
cd39f2b6 |
1957 | #endif |
a863c7d1 |
1958 | #ifdef USE_THREADS |
1959 | case '@': |
38a03e6e |
1960 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
1961 | break; |
1962 | #endif /* USE_THREADS */ |
79072805 |
1963 | } |
1964 | return 0; |
1965 | } |
1966 | |
f93b4edd |
1967 | #ifdef USE_THREADS |
1968 | int |
864dbfa3 |
1969 | Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg) |
f93b4edd |
1970 | { |
1971 | dTHR; |
b900a521 |
1972 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1973 | "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n", |
1974 | PTR2UV(thr), PTR2UV(sv));) |
f93b4edd |
1975 | if (MgOWNER(mg)) |
cea2e8a9 |
1976 | Perl_croak(aTHX_ "panic: magic_mutexfree"); |
f93b4edd |
1977 | MUTEX_DESTROY(MgMUTEXP(mg)); |
1978 | COND_DESTROY(MgCONDP(mg)); |
1979 | return 0; |
1980 | } |
1981 | #endif /* USE_THREADS */ |
1982 | |
79072805 |
1983 | I32 |
864dbfa3 |
1984 | Perl_whichsig(pTHX_ char *sig) |
79072805 |
1985 | { |
1986 | register char **sigv; |
1987 | |
22c35a8c |
1988 | for (sigv = PL_sig_name+1; *sigv; sigv++) |
79072805 |
1989 | if (strEQ(sig,*sigv)) |
22c35a8c |
1990 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 |
1991 | #ifdef SIGCLD |
1992 | if (strEQ(sig,"CHLD")) |
1993 | return SIGCLD; |
1994 | #endif |
1995 | #ifdef SIGCHLD |
1996 | if (strEQ(sig,"CLD")) |
1997 | return SIGCHLD; |
1998 | #endif |
1999 | return 0; |
2000 | } |
2001 | |
84902520 |
2002 | static SV* sig_sv; |
2003 | |
ecfc5424 |
2004 | Signal_t |
cea2e8a9 |
2005 | Perl_sighandler(int sig) |
79072805 |
2006 | { |
cea2e8a9 |
2007 | dTHX; |
79072805 |
2008 | dSP; |
00d579c5 |
2009 | GV *gv = Nullgv; |
a0d0e21e |
2010 | HV *st; |
3280af22 |
2011 | SV *sv, *tSv = PL_Sv; |
00d579c5 |
2012 | CV *cv = Nullcv; |
533c011a |
2013 | OP *myop = PL_op; |
84902520 |
2014 | U32 flags = 0; |
3280af22 |
2015 | I32 o_save_i = PL_savestack_ix, type; |
2016 | XPV *tXpv = PL_Xpv; |
84902520 |
2017 | |
3280af22 |
2018 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 |
2019 | flags |= 1; |
3280af22 |
2020 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 |
2021 | flags |= 4; |
3280af22 |
2022 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 |
2023 | flags |= 8; |
3280af22 |
2024 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 |
2025 | flags |= 16; |
2026 | |
22c35a8c |
2027 | if (!PL_psig_ptr[sig]) |
cea2e8a9 |
2028 | Perl_die(aTHX_ "Signal SIG%s received, but no signal handler set.\n", |
22c35a8c |
2029 | PL_sig_name[sig]); |
ff0cee69 |
2030 | |
84902520 |
2031 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2032 | infinity, so we fix 4 (in fact 5): */ |
2033 | if (flags & 1) { |
3280af22 |
2034 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2035 | o_save_i = PL_savestack_ix; |
c76ac1ee |
2036 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 |
2037 | } |
2038 | if (flags & 4) |
3280af22 |
2039 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 |
2040 | if (flags & 8) { |
3280af22 |
2041 | PL_retstack_ix++; |
2042 | PL_retstack[PL_retstack_ix] = NULL; |
84902520 |
2043 | } |
2044 | if (flags & 16) |
3280af22 |
2045 | PL_scopestack_ix += 1; |
84902520 |
2046 | /* sv_2cv is too complicated, try a simpler variant first: */ |
22c35a8c |
2047 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 |
2048 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c |
2049 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 |
2050 | |
a0d0e21e |
2051 | if (!cv || !CvROOT(cv)) { |
599cee73 |
2052 | if (ckWARN(WARN_SIGNAL)) |
cea2e8a9 |
2053 | Perl_warner(aTHX_ WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", |
22c35a8c |
2054 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 |
2055 | : ((cv && CvGV(cv)) |
2056 | ? GvENAME(CvGV(cv)) |
2057 | : "__ANON__"))); |
2058 | goto cleanup; |
79072805 |
2059 | } |
2060 | |
22c35a8c |
2061 | if(PL_psig_name[sig]) { |
2062 | sv = SvREFCNT_inc(PL_psig_name[sig]); |
84902520 |
2063 | flags |= 64; |
2064 | sig_sv = sv; |
2065 | } else { |
ff0cee69 |
2066 | sv = sv_newmortal(); |
22c35a8c |
2067 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a |
2068 | } |
e336de0d |
2069 | |
e788e7d3 |
2070 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 |
2071 | PUSHMARK(SP); |
79072805 |
2072 | PUSHs(sv); |
79072805 |
2073 | PUTBACK; |
a0d0e21e |
2074 | |
864dbfa3 |
2075 | call_sv((SV*)cv, G_DISCARD); |
79072805 |
2076 | |
d3acc0f7 |
2077 | POPSTACK; |
00d579c5 |
2078 | cleanup: |
84902520 |
2079 | if (flags & 1) |
3280af22 |
2080 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 |
2081 | if (flags & 4) |
3280af22 |
2082 | PL_markstack_ptr--; |
84902520 |
2083 | if (flags & 8) |
3280af22 |
2084 | PL_retstack_ix--; |
84902520 |
2085 | if (flags & 16) |
3280af22 |
2086 | PL_scopestack_ix -= 1; |
84902520 |
2087 | if (flags & 64) |
2088 | SvREFCNT_dec(sv); |
533c011a |
2089 | PL_op = myop; /* Apparently not needed... */ |
84902520 |
2090 | |
3280af22 |
2091 | PL_Sv = tSv; /* Restore global temporaries. */ |
2092 | PL_Xpv = tXpv; |
79072805 |
2093 | return; |
2094 | } |
4e35701f |
2095 | |
2096 | |
51371543 |
2097 | #ifdef PERL_OBJECT |
51371543 |
2098 | #include "XSUB.h" |
2099 | #endif |
2100 | |
2101 | static void |
2102 | restore_magic(pTHXo_ void *p) |
2103 | { |
2104 | dTHR; |
2105 | MGS* mgs = SSPTR((I32)p, MGS*); |
2106 | SV* sv = mgs->mgs_sv; |
2107 | |
2108 | if (!sv) |
2109 | return; |
2110 | |
2111 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
2112 | { |
2113 | if (mgs->mgs_flags) |
2114 | SvFLAGS(sv) |= mgs->mgs_flags; |
2115 | else |
2116 | mg_magical(sv); |
2117 | if (SvGMAGICAL(sv)) |
2118 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
2119 | } |
2120 | |
2121 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ |
2122 | |
2123 | /* If we're still on top of the stack, pop us off. (That condition |
2124 | * will be satisfied if restore_magic was called explicitly, but *not* |
2125 | * if it's being called via leave_scope.) |
2126 | * The reason for doing this is that otherwise, things like sv_2cv() |
2127 | * may leave alloc gunk on the savestack, and some code |
2128 | * (e.g. sighandler) doesn't expect that... |
2129 | */ |
2130 | if (PL_savestack_ix == mgs->mgs_ss_ix) |
2131 | { |
2132 | I32 popval = SSPOPINT; |
c76ac1ee |
2133 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 |
2134 | PL_savestack_ix -= 2; |
2135 | popval = SSPOPINT; |
2136 | assert(popval == SAVEt_ALLOC); |
2137 | popval = SSPOPINT; |
2138 | PL_savestack_ix -= popval; |
2139 | } |
2140 | |
2141 | } |
2142 | |
2143 | static void |
2144 | unwind_handler_stack(pTHXo_ void *p) |
2145 | { |
2146 | dTHR; |
2147 | U32 flags = *(U32*)p; |
2148 | |
2149 | if (flags & 1) |
2150 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
2151 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2152 | if (flags & 64) |
2153 | SvREFCNT_dec(sig_sv); |
2154 | } |