Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, 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" |
16 | #include "perl.h" |
17 | |
e6d9441c |
18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> |
21 | #endif |
a0d0e21e |
22 | |
5cd24f17 |
23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 |
26 | # endif |
27 | #endif |
28 | |
c07a80fd |
29 | /* |
30 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
31 | */ |
32 | |
33 | struct magic_state { |
34 | SV* mgs_sv; |
35 | U32 mgs_flags; |
36 | }; |
37 | typedef struct magic_state MGS; |
38 | |
39 | static void restore_magic _((void *p)); |
40 | |
48e43a1c |
41 | static void |
8ac85365 |
42 | save_magic(MGS *mgs, SV *sv) |
c07a80fd |
43 | { |
c07a80fd |
44 | assert(SvMAGICAL(sv)); |
45 | |
c07a80fd |
46 | mgs->mgs_sv = sv; |
47 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
48 | SAVEDESTRUCTOR(restore_magic, mgs); |
49 | |
50 | SvMAGICAL_off(sv); |
51 | SvREADONLY_off(sv); |
52 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
53 | } |
54 | |
55 | static void |
8ac85365 |
56 | restore_magic(void *p) |
c07a80fd |
57 | { |
48e43a1c |
58 | MGS* mgs = (MGS*)p; |
c07a80fd |
59 | SV* sv = mgs->mgs_sv; |
60 | |
61 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
62 | { |
63 | if (mgs->mgs_flags) |
64 | SvFLAGS(sv) |= mgs->mgs_flags; |
65 | else |
66 | mg_magical(sv); |
67 | if (SvGMAGICAL(sv)) |
68 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
69 | } |
c07a80fd |
70 | } |
71 | |
8990e307 |
72 | void |
8ac85365 |
73 | mg_magical(SV *sv) |
8990e307 |
74 | { |
75 | MAGIC* mg; |
76 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
77 | MGVTBL* vtbl = mg->mg_virtual; |
78 | if (vtbl) { |
a0d0e21e |
79 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
80 | SvGMAGICAL_on(sv); |
81 | if (vtbl->svt_set) |
82 | SvSMAGICAL_on(sv); |
83 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
84 | SvRMAGICAL_on(sv); |
85 | } |
86 | } |
87 | } |
88 | |
79072805 |
89 | int |
8ac85365 |
90 | mg_get(SV *sv) |
79072805 |
91 | { |
48e43a1c |
92 | MGS mgs; |
79072805 |
93 | MAGIC* mg; |
c6496cc7 |
94 | MAGIC** mgp; |
760ac839 |
95 | int mgp_valid = 0; |
463ee0b2 |
96 | |
c07a80fd |
97 | ENTER; |
48e43a1c |
98 | save_magic(&mgs, sv); |
463ee0b2 |
99 | |
c6496cc7 |
100 | mgp = &SvMAGIC(sv); |
101 | while ((mg = *mgp) != 0) { |
79072805 |
102 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
103 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 |
104 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 |
105 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
106 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
107 | (mg->mg_flags & MGf_GSKIP)) |
108 | mgs.mgs_flags = 0; |
a0d0e21e |
109 | } |
c6496cc7 |
110 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
111 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
112 | mgp = &mg->mg_moremagic; |
760ac839 |
113 | mgp_valid = 1; |
114 | } |
115 | else |
116 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
117 | } |
463ee0b2 |
118 | |
c07a80fd |
119 | LEAVE; |
79072805 |
120 | return 0; |
121 | } |
122 | |
123 | int |
8ac85365 |
124 | mg_set(SV *sv) |
79072805 |
125 | { |
48e43a1c |
126 | MGS mgs; |
79072805 |
127 | MAGIC* mg; |
463ee0b2 |
128 | MAGIC* nextmg; |
129 | |
c07a80fd |
130 | ENTER; |
48e43a1c |
131 | save_magic(&mgs, sv); |
463ee0b2 |
132 | |
133 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
134 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
135 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
136 | if (mg->mg_flags & MGf_GSKIP) { |
137 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
48e43a1c |
138 | mgs.mgs_flags = 0; |
a0d0e21e |
139 | } |
79072805 |
140 | if (vtbl && vtbl->svt_set) |
141 | (*vtbl->svt_set)(sv, mg); |
142 | } |
463ee0b2 |
143 | |
c07a80fd |
144 | LEAVE; |
79072805 |
145 | return 0; |
146 | } |
147 | |
148 | U32 |
8ac85365 |
149 | mg_len(SV *sv) |
79072805 |
150 | { |
151 | MAGIC* mg; |
748a9306 |
152 | char *junk; |
463ee0b2 |
153 | STRLEN len; |
463ee0b2 |
154 | |
79072805 |
155 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
156 | MGVTBL* vtbl = mg->mg_virtual; |
85e6fe83 |
157 | if (vtbl && vtbl->svt_len) { |
48e43a1c |
158 | MGS mgs; |
159 | |
c07a80fd |
160 | ENTER; |
48e43a1c |
161 | save_magic(&mgs, sv); |
a0d0e21e |
162 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 |
163 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd |
164 | LEAVE; |
85e6fe83 |
165 | return len; |
166 | } |
167 | } |
168 | |
748a9306 |
169 | junk = SvPV(sv, len); |
463ee0b2 |
170 | return len; |
79072805 |
171 | } |
172 | |
93965878 |
173 | I32 |
174 | mg_size(SV *sv) |
175 | { |
176 | MAGIC* mg; |
177 | I32 len; |
178 | |
179 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
180 | MGVTBL* vtbl = mg->mg_virtual; |
181 | if (vtbl && vtbl->svt_len) { |
182 | MGS mgs; |
183 | ENTER; |
184 | /* omit MGf_GSKIP -- not changed here */ |
185 | len = (*vtbl->svt_len)(sv, mg); |
186 | LEAVE; |
187 | return len; |
188 | } |
189 | } |
190 | |
191 | switch(SvTYPE(sv)) { |
192 | case SVt_PVAV: |
193 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
194 | return len; |
195 | case SVt_PVHV: |
196 | /* FIXME */ |
197 | default: |
198 | croak("Size magic not implemented"); |
199 | break; |
200 | } |
201 | return 0; |
202 | } |
203 | |
79072805 |
204 | int |
8ac85365 |
205 | mg_clear(SV *sv) |
79072805 |
206 | { |
48e43a1c |
207 | MGS mgs; |
79072805 |
208 | MAGIC* mg; |
463ee0b2 |
209 | |
c07a80fd |
210 | ENTER; |
48e43a1c |
211 | save_magic(&mgs, sv); |
463ee0b2 |
212 | |
79072805 |
213 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
214 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
215 | /* omit GSKIP -- never set here */ |
216 | |
79072805 |
217 | if (vtbl && vtbl->svt_clear) |
218 | (*vtbl->svt_clear)(sv, mg); |
219 | } |
463ee0b2 |
220 | |
c07a80fd |
221 | LEAVE; |
79072805 |
222 | return 0; |
223 | } |
224 | |
93a17b20 |
225 | MAGIC* |
8ac85365 |
226 | mg_find(SV *sv, int type) |
93a17b20 |
227 | { |
228 | MAGIC* mg; |
93a17b20 |
229 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
230 | if (mg->mg_type == type) |
231 | return mg; |
232 | } |
233 | return 0; |
234 | } |
235 | |
79072805 |
236 | int |
8ac85365 |
237 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 |
238 | { |
463ee0b2 |
239 | int count = 0; |
79072805 |
240 | MAGIC* mg; |
463ee0b2 |
241 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
242 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
243 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
244 | count++; |
79072805 |
245 | } |
79072805 |
246 | } |
463ee0b2 |
247 | return count; |
79072805 |
248 | } |
249 | |
250 | int |
8ac85365 |
251 | mg_free(SV *sv) |
79072805 |
252 | { |
253 | MAGIC* mg; |
254 | MAGIC* moremagic; |
255 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
256 | MGVTBL* vtbl = mg->mg_virtual; |
257 | moremagic = mg->mg_moremagic; |
258 | if (vtbl && vtbl->svt_free) |
259 | (*vtbl->svt_free)(sv, mg); |
93a17b20 |
260 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a |
261 | if (mg->mg_len >= 0) |
262 | Safefree(mg->mg_ptr); |
263 | else if (mg->mg_len == HEf_SVKEY) |
264 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
265 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
266 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
267 | Safefree(mg); |
268 | } |
269 | SvMAGIC(sv) = 0; |
270 | return 0; |
271 | } |
272 | |
273 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
274 | #include <signal.h> |
275 | #endif |
276 | |
93a17b20 |
277 | U32 |
8ac85365 |
278 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 |
279 | { |
a863c7d1 |
280 | dTHR; |
93a17b20 |
281 | register I32 paren; |
282 | register char *s; |
283 | register I32 i; |
bbce6d69 |
284 | register REGEXP *rx; |
748a9306 |
285 | char *t; |
93a17b20 |
286 | |
287 | switch (*mg->mg_ptr) { |
288 | case '1': case '2': case '3': case '4': |
289 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
290 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 |
291 | paren = atoi(mg->mg_ptr); |
292 | getparen: |
bbce6d69 |
293 | if (paren <= rx->nparens && |
294 | (s = rx->startp[paren]) && |
295 | (t = rx->endp[paren])) |
296 | { |
748a9306 |
297 | i = t - s; |
71be2cbc |
298 | if (i >= 0) |
93a17b20 |
299 | return i; |
93a17b20 |
300 | } |
93a17b20 |
301 | } |
748a9306 |
302 | return 0; |
93a17b20 |
303 | case '+': |
bbce6d69 |
304 | if (curpm && (rx = curpm->op_pmregexp)) { |
305 | paren = rx->lastparen; |
13f57bf8 |
306 | if (paren) |
307 | goto getparen; |
93a17b20 |
308 | } |
748a9306 |
309 | return 0; |
93a17b20 |
310 | case '`': |
bbce6d69 |
311 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
312 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
313 | i = rx->startp[0] - s; |
71be2cbc |
314 | if (i >= 0) |
93a17b20 |
315 | return i; |
93a17b20 |
316 | } |
93a17b20 |
317 | } |
748a9306 |
318 | return 0; |
93a17b20 |
319 | case '\'': |
bbce6d69 |
320 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
321 | if (rx->subend && (s = rx->endp[0])) { |
322 | i = rx->subend - s; |
323 | if (i >= 0) |
5cd24f17 |
324 | return i; |
93a17b20 |
325 | } |
93a17b20 |
326 | } |
748a9306 |
327 | return 0; |
93a17b20 |
328 | case ',': |
329 | return (STRLEN)ofslen; |
330 | case '\\': |
331 | return (STRLEN)orslen; |
332 | } |
333 | magic_get(sv,mg); |
334 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
335 | sv_2pv(sv, &na); |
93a17b20 |
336 | if (SvPOK(sv)) |
337 | return SvCUR(sv); |
338 | return 0; |
339 | } |
340 | |
79072805 |
341 | int |
8ac85365 |
342 | magic_get(SV *sv, MAGIC *mg) |
79072805 |
343 | { |
a863c7d1 |
344 | dTHR; |
79072805 |
345 | register I32 paren; |
346 | register char *s; |
347 | register I32 i; |
bbce6d69 |
348 | register REGEXP *rx; |
748a9306 |
349 | char *t; |
79072805 |
350 | |
351 | switch (*mg->mg_ptr) { |
748a9306 |
352 | case '\001': /* ^A */ |
353 | sv_setsv(sv, bodytarget); |
354 | break; |
79072805 |
355 | case '\004': /* ^D */ |
188ea221 |
356 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 |
357 | break; |
28f23441 |
358 | case '\005': /* ^E */ |
359 | #ifdef VMS |
360 | { |
361 | # include <descrip.h> |
362 | # include <starlet.h> |
363 | char msg[255]; |
364 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
365 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
366 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
367 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
368 | else |
369 | sv_setpv(sv,""); |
370 | } |
371 | #else |
88e89b8a |
372 | #ifdef OS2 |
fb73857a |
373 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
374 | sv_setnv(sv, (double)errno); |
375 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
376 | } else { |
377 | if (errno != errno_isOS2) |
378 | Perl_rc = _syserrno(); |
379 | sv_setnv(sv, (double)Perl_rc); |
380 | sv_setpv(sv, os2error(Perl_rc)); |
381 | } |
88e89b8a |
382 | #else |
22fae026 |
383 | #ifdef WIN32 |
384 | { |
385 | DWORD dwErr = GetLastError(); |
386 | sv_setnv(sv, (double)dwErr); |
387 | if (dwErr) |
388 | win32_str_os_error(sv, dwErr); |
389 | else |
390 | sv_setpv(sv, ""); |
391 | SetLastError(dwErr); |
392 | } |
393 | #else |
946ec16e |
394 | sv_setnv(sv, (double)errno); |
28f23441 |
395 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
396 | #endif |
88e89b8a |
397 | #endif |
22fae026 |
398 | #endif |
946ec16e |
399 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
400 | break; |
79072805 |
401 | case '\006': /* ^F */ |
188ea221 |
402 | sv_setiv(sv, (IV)maxsysfd); |
79072805 |
403 | break; |
a0d0e21e |
404 | case '\010': /* ^H */ |
188ea221 |
405 | sv_setiv(sv, (IV)hints); |
a0d0e21e |
406 | break; |
79072805 |
407 | case '\t': /* ^I */ |
408 | if (inplace) |
409 | sv_setpv(sv, inplace); |
410 | else |
188ea221 |
411 | sv_setsv(sv, &sv_undef); |
79072805 |
412 | break; |
28f23441 |
413 | case '\017': /* ^O */ |
188ea221 |
414 | sv_setpv(sv, osname); |
28f23441 |
415 | break; |
79072805 |
416 | case '\020': /* ^P */ |
188ea221 |
417 | sv_setiv(sv, (IV)perldb); |
79072805 |
418 | break; |
fb73857a |
419 | case '\023': /* ^S */ |
d58bf5aa |
420 | { |
421 | dTHR; |
422 | if (lex_state != LEX_NOTPARSING) |
423 | SvOK_off(sv); |
424 | else if (in_eval) |
425 | sv_setiv(sv, 1); |
426 | else |
427 | sv_setiv(sv, 0); |
428 | } |
fb73857a |
429 | break; |
79072805 |
430 | case '\024': /* ^T */ |
88e89b8a |
431 | #ifdef BIG_TIME |
188ea221 |
432 | sv_setnv(sv, basetime); |
88e89b8a |
433 | #else |
188ea221 |
434 | sv_setiv(sv, (IV)basetime); |
88e89b8a |
435 | #endif |
79072805 |
436 | break; |
437 | case '\027': /* ^W */ |
188ea221 |
438 | sv_setiv(sv, (IV)dowarn); |
79072805 |
439 | break; |
440 | case '1': case '2': case '3': case '4': |
441 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
442 | if (curpm && (rx = curpm->op_pmregexp)) { |
a863c7d1 |
443 | /* |
444 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
445 | * XXX Does the new way break anything? |
446 | */ |
447 | paren = atoi(mg->mg_ptr); |
79072805 |
448 | getparen: |
bbce6d69 |
449 | if (paren <= rx->nparens && |
450 | (s = rx->startp[paren]) && |
451 | (t = rx->endp[paren])) |
452 | { |
748a9306 |
453 | i = t - s; |
13f57bf8 |
454 | getrx: |
748a9306 |
455 | if (i >= 0) { |
13f57bf8 |
456 | bool was_tainted; |
457 | if (tainting) { |
458 | was_tainted = tainted; |
459 | tainted = FALSE; |
460 | } |
79072805 |
461 | sv_setpvn(sv,s,i); |
13f57bf8 |
462 | if (tainting) |
c277df42 |
463 | tainted = was_tainted || RX_MATCH_TAINTED(rx); |
748a9306 |
464 | break; |
465 | } |
79072805 |
466 | } |
79072805 |
467 | } |
748a9306 |
468 | sv_setsv(sv,&sv_undef); |
79072805 |
469 | break; |
470 | case '+': |
bbce6d69 |
471 | if (curpm && (rx = curpm->op_pmregexp)) { |
472 | paren = rx->lastparen; |
a0d0e21e |
473 | if (paren) |
474 | goto getparen; |
79072805 |
475 | } |
748a9306 |
476 | sv_setsv(sv,&sv_undef); |
79072805 |
477 | break; |
478 | case '`': |
bbce6d69 |
479 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
480 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
481 | i = rx->startp[0] - s; |
13f57bf8 |
482 | goto getrx; |
79072805 |
483 | } |
79072805 |
484 | } |
748a9306 |
485 | sv_setsv(sv,&sv_undef); |
79072805 |
486 | break; |
487 | case '\'': |
bbce6d69 |
488 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
489 | if (rx->subend && (s = rx->endp[0])) { |
490 | i = rx->subend - s; |
491 | goto getrx; |
79072805 |
492 | } |
79072805 |
493 | } |
748a9306 |
494 | sv_setsv(sv,&sv_undef); |
79072805 |
495 | break; |
496 | case '.': |
497 | #ifndef lint |
a0d0e21e |
498 | if (GvIO(last_in_gv)) { |
188ea221 |
499 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 |
500 | } |
501 | #endif |
502 | break; |
503 | case '?': |
809a5acc |
504 | { |
505 | dTHR; |
506 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
507 | #ifdef COMPLEX_STATUS |
809a5acc |
508 | LvTARGOFF(sv) = statusvalue; |
509 | LvTARGLEN(sv) = statusvalue_vms; |
ff0cee69 |
510 | #endif |
809a5acc |
511 | } |
79072805 |
512 | break; |
513 | case '^': |
a0d0e21e |
514 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
515 | if (s) |
516 | sv_setpv(sv,s); |
517 | else { |
518 | sv_setpv(sv,GvENAME(defoutgv)); |
519 | sv_catpv(sv,"_TOP"); |
520 | } |
521 | break; |
522 | case '~': |
a0d0e21e |
523 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
524 | if (!s) |
525 | s = GvENAME(defoutgv); |
526 | sv_setpv(sv,s); |
527 | break; |
528 | #ifndef lint |
529 | case '=': |
188ea221 |
530 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
531 | break; |
532 | case '-': |
188ea221 |
533 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
534 | break; |
535 | case '%': |
188ea221 |
536 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 |
537 | break; |
538 | #endif |
539 | case ':': |
540 | break; |
541 | case '/': |
542 | break; |
543 | case '[': |
0f15f207 |
544 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 |
545 | break; |
546 | case '|': |
188ea221 |
547 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
548 | break; |
549 | case ',': |
550 | sv_setpvn(sv,ofs,ofslen); |
551 | break; |
552 | case '\\': |
553 | sv_setpvn(sv,ors,orslen); |
554 | break; |
555 | case '#': |
556 | sv_setpv(sv,ofmt); |
557 | break; |
558 | case '!': |
a5f75d66 |
559 | #ifdef VMS |
946ec16e |
560 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
561 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
562 | #else |
88e89b8a |
563 | { |
564 | int saveerrno = errno; |
946ec16e |
565 | sv_setnv(sv, (double)errno); |
88e89b8a |
566 | #ifdef OS2 |
567 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
568 | else |
a5f75d66 |
569 | #endif |
2304df62 |
570 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
571 | errno = saveerrno; |
572 | } |
573 | #endif |
946ec16e |
574 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
575 | break; |
576 | case '<': |
188ea221 |
577 | sv_setiv(sv, (IV)uid); |
79072805 |
578 | break; |
579 | case '>': |
188ea221 |
580 | sv_setiv(sv, (IV)euid); |
79072805 |
581 | break; |
582 | case '(': |
188ea221 |
583 | sv_setiv(sv, (IV)gid); |
fc36a67e |
584 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 |
585 | goto add_groups; |
586 | case ')': |
188ea221 |
587 | sv_setiv(sv, (IV)egid); |
fc36a67e |
588 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 |
589 | add_groups: |
79072805 |
590 | #ifdef HAS_GETGROUPS |
79072805 |
591 | { |
a0d0e21e |
592 | Groups_t gary[NGROUPS]; |
79072805 |
593 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
594 | while (--i >= 0) |
fc36a67e |
595 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
596 | } |
597 | #endif |
29355cf7 |
598 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
599 | break; |
600 | case '*': |
601 | break; |
602 | case '0': |
603 | break; |
a863c7d1 |
604 | #ifdef USE_THREADS |
605 | case '@': |
38a03e6e |
606 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
607 | break; |
608 | #endif /* USE_THREADS */ |
79072805 |
609 | } |
a0d0e21e |
610 | return 0; |
79072805 |
611 | } |
612 | |
613 | int |
8ac85365 |
614 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 |
615 | { |
616 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
617 | |
618 | if (uf && uf->uf_val) |
619 | (*uf->uf_val)(uf->uf_index, sv); |
620 | return 0; |
621 | } |
622 | |
623 | int |
8ac85365 |
624 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 |
625 | { |
626 | register char *s; |
88e89b8a |
627 | char *ptr; |
5aabfad6 |
628 | STRLEN len, klen; |
a0d0e21e |
629 | I32 i; |
1e422769 |
630 | |
a0d0e21e |
631 | s = SvPV(sv,len); |
5aabfad6 |
632 | ptr = MgPV(mg,klen); |
88e89b8a |
633 | my_setenv(ptr, s); |
1e422769 |
634 | |
a0d0e21e |
635 | #ifdef DYNAMIC_ENV_FETCH |
636 | /* We just undefd an environment var. Is a replacement */ |
637 | /* waiting in the wings? */ |
638 | if (!len) { |
5aabfad6 |
639 | SV **valp; |
640 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) |
641 | s = SvPV(*valp, len); |
a0d0e21e |
642 | } |
643 | #endif |
1e422769 |
644 | |
39e571d4 |
645 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
646 | /* And you'll never guess what the dog had */ |
647 | /* in its mouth... */ |
463ee0b2 |
648 | if (tainting) { |
1e422769 |
649 | MgTAINTEDDIR_off(mg); |
650 | #ifdef VMS |
5aabfad6 |
651 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
652 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
653 | struct stat sbuf; |
654 | int i = 0, j = 0; |
655 | |
656 | do { /* DCL$PATH may be a search list */ |
657 | while (1) { /* as may dev portion of any element */ |
658 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
659 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
660 | cando_by_name(S_IWUSR,0,elt) ) { |
661 | MgTAINTEDDIR_on(mg); |
662 | return 0; |
663 | } |
664 | } |
665 | if ((cp = strchr(elt, ':')) != Nullch) |
666 | *cp = '\0'; |
667 | if (my_trnlnm(elt, eltbuf, j++)) |
668 | elt = eltbuf; |
669 | else |
670 | break; |
671 | } |
672 | j = 0; |
673 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
674 | } |
675 | #endif /* VMS */ |
5aabfad6 |
676 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
677 | char *strend = s + len; |
463ee0b2 |
678 | |
679 | while (s < strend) { |
96827780 |
680 | char tmpbuf[256]; |
1e422769 |
681 | struct stat st; |
96827780 |
682 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
683 | s, strend, ':', &i); |
463ee0b2 |
684 | s++; |
96827780 |
685 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
686 | || *tmpbuf != '/' |
687 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
688 | MgTAINTEDDIR_on(mg); |
1e422769 |
689 | return 0; |
690 | } |
463ee0b2 |
691 | } |
79072805 |
692 | } |
693 | } |
39e571d4 |
694 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
695 | |
79072805 |
696 | return 0; |
697 | } |
698 | |
699 | int |
8ac85365 |
700 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 |
701 | { |
5aabfad6 |
702 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 |
703 | return 0; |
704 | } |
705 | |
88e89b8a |
706 | int |
8ac85365 |
707 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a |
708 | { |
709 | #if defined(VMS) |
710 | die("Can't make list assignment to %%ENV on this system"); |
711 | #else |
d58bf5aa |
712 | dTHR; |
fb73857a |
713 | if (localizing) { |
714 | HE* entry; |
715 | magic_clear_all_env(sv,mg); |
716 | hv_iterinit((HV*)sv); |
717 | while (entry = hv_iternext((HV*)sv)) { |
718 | I32 keylen; |
719 | my_setenv(hv_iterkey(entry, &keylen), |
720 | SvPV(hv_iterval((HV*)sv, entry), na)); |
721 | } |
722 | } |
723 | #endif |
724 | return 0; |
725 | } |
726 | |
727 | int |
8ac85365 |
728 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 |
729 | { |
3e3baf6d |
730 | #if defined(VMS) |
731 | die("Can't make list assignment to %%ENV on this system"); |
732 | #else |
733 | #ifdef WIN32 |
734 | char *envv = GetEnvironmentStrings(); |
735 | char *cur = envv; |
736 | STRLEN len; |
737 | while (*cur) { |
738 | char *end = strchr(cur,'='); |
739 | if (end && end != cur) { |
740 | *end = '\0'; |
741 | my_setenv(cur,Nullch); |
742 | *end = '='; |
743 | cur += strlen(end+1)+1; |
744 | } |
745 | else if ((len = strlen(cur))) |
746 | cur += len+1; |
747 | } |
748 | FreeEnvironmentStrings(envv); |
66b1d557 |
749 | #else |
750 | I32 i; |
751 | |
752 | if (environ == origenviron) |
753 | New(901, environ, 1, char*); |
754 | else |
755 | for (i = 0; environ[i]; i++) |
756 | Safefree(environ[i]); |
757 | environ[0] = Nullch; |
758 | |
66b1d557 |
759 | #endif |
3e3baf6d |
760 | #endif |
761 | return 0; |
66b1d557 |
762 | } |
763 | |
764 | int |
8ac85365 |
765 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a |
766 | { |
767 | I32 i; |
768 | /* Are we fetching a signal entry? */ |
5aabfad6 |
769 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
770 | if (i) { |
771 | if(psig_ptr[i]) |
772 | sv_setsv(sv,psig_ptr[i]); |
773 | else { |
ff68c719 |
774 | Sighandler_t sigstate = rsignal_state(i); |
775 | |
88e89b8a |
776 | /* cache state so we don't fetch it again */ |
ff68c719 |
777 | if(sigstate == SIG_IGN) |
88e89b8a |
778 | sv_setpv(sv,"IGNORE"); |
779 | else |
780 | sv_setsv(sv,&sv_undef); |
781 | psig_ptr[i] = SvREFCNT_inc(sv); |
782 | SvTEMP_off(sv); |
783 | } |
784 | } |
785 | return 0; |
786 | } |
787 | int |
8ac85365 |
788 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a |
789 | { |
790 | I32 i; |
791 | /* Are we clearing a signal entry? */ |
5aabfad6 |
792 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
793 | if (i) { |
794 | if(psig_ptr[i]) { |
795 | SvREFCNT_dec(psig_ptr[i]); |
796 | psig_ptr[i]=0; |
797 | } |
798 | if(psig_name[i]) { |
799 | SvREFCNT_dec(psig_name[i]); |
800 | psig_name[i]=0; |
801 | } |
802 | } |
803 | return 0; |
804 | } |
3d37d572 |
805 | |
85e6fe83 |
806 | int |
8ac85365 |
807 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 |
808 | { |
11343788 |
809 | dTHR; |
79072805 |
810 | register char *s; |
811 | I32 i; |
748a9306 |
812 | SV** svp; |
a0d0e21e |
813 | |
5aabfad6 |
814 | s = MgPV(mg,na); |
748a9306 |
815 | if (*s == '_') { |
816 | if (strEQ(s,"__DIE__")) |
817 | svp = &diehook; |
818 | else if (strEQ(s,"__WARN__")) |
819 | svp = &warnhook; |
820 | else if (strEQ(s,"__PARSE__")) |
821 | svp = &parsehook; |
822 | else |
823 | croak("No such hook: %s", s); |
824 | i = 0; |
4633a7c4 |
825 | if (*svp) { |
826 | SvREFCNT_dec(*svp); |
827 | *svp = 0; |
828 | } |
748a9306 |
829 | } |
830 | else { |
831 | i = whichsig(s); /* ...no, a brick */ |
832 | if (!i) { |
833 | if (dowarn || strEQ(s,"ALARM")) |
834 | warn("No such signal: SIG%s", s); |
835 | return 0; |
836 | } |
ff0cee69 |
837 | SvREFCNT_dec(psig_name[i]); |
838 | SvREFCNT_dec(psig_ptr[i]); |
88e89b8a |
839 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
840 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 |
841 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a |
842 | SvREADONLY_on(psig_name[i]); |
748a9306 |
843 | } |
a0d0e21e |
844 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
845 | if (i) |
c23142e2 |
846 | (void)rsignal(i, sighandlerp); |
748a9306 |
847 | else |
848 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
849 | return 0; |
850 | } |
851 | s = SvPV_force(sv,na); |
748a9306 |
852 | if (strEQ(s,"IGNORE")) { |
853 | if (i) |
ff68c719 |
854 | (void)rsignal(i, SIG_IGN); |
748a9306 |
855 | else |
856 | *svp = 0; |
857 | } |
858 | else if (strEQ(s,"DEFAULT") || !*s) { |
859 | if (i) |
ff68c719 |
860 | (void)rsignal(i, SIG_DFL); |
748a9306 |
861 | else |
862 | *svp = 0; |
863 | } |
79072805 |
864 | else { |
5aabfad6 |
865 | /* |
866 | * We should warn if HINT_STRICT_REFS, but without |
867 | * access to a known hint bit in a known OP, we can't |
868 | * tell whether HINT_STRICT_REFS is in force or not. |
869 | */ |
46fc3d4c |
870 | if (!strchr(s,':') && !strchr(s,'\'')) |
871 | sv_setpv(sv, form("main::%s", s)); |
748a9306 |
872 | if (i) |
c23142e2 |
873 | (void)rsignal(i, sighandlerp); |
748a9306 |
874 | else |
875 | *svp = SvREFCNT_inc(sv); |
79072805 |
876 | } |
877 | return 0; |
878 | } |
879 | |
880 | int |
8ac85365 |
881 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 |
882 | { |
a0231f0e |
883 | HV *stash; |
884 | SV **svp; |
885 | I32 fill; |
886 | HV *basefields = Nullhv; |
887 | GV **gvp; |
888 | GV *gv; |
889 | HE *he; |
890 | static char *FIELDS = "FIELDS"; |
891 | |
463ee0b2 |
892 | sub_generation++; |
a0231f0e |
893 | |
894 | if (mg->mg_type == 'i') |
895 | return 0; /* Ignore lower-case version of the magic */ |
896 | |
897 | stash = GvSTASH(mg->mg_obj); |
898 | svp = AvARRAY((AV*)sv); |
93965878 |
899 | |
900 | /* NOTE: No support for tied ISA */ |
901 | for (fill = AvFILLp((AV*)sv); fill >= 0; fill--, svp++) { |
a0231f0e |
902 | HV *basestash = gv_stashsv(*svp, FALSE); |
903 | |
904 | if (!basestash) { |
905 | if (dowarn) |
906 | warn("No such package \"%_\" in @ISA assignment", *svp); |
907 | continue; |
908 | } |
909 | gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE); |
910 | if (gvp && *gvp && GvHV(*gvp)) { |
911 | if (basefields) |
912 | croak("Can't multiply inherit %%FIELDS"); |
913 | basefields = GvHV(*gvp); |
914 | } |
915 | } |
916 | |
917 | if (!basefields) |
918 | return 0; |
919 | |
920 | gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE); |
921 | if (!isGV(gv)) |
922 | gv_init(gv, stash, FIELDS, 6, TRUE); |
923 | if (!GvHV(gv)) |
924 | GvHV(gv) = newHV(); |
925 | if (HvKEYS(GvHV(gv))) |
926 | croak("Inherited %%FIELDS can't override existing %%FIELDS"); |
927 | |
928 | hv_iterinit(GvHV(gv)); |
929 | while ((he = hv_iternext(basefields))) |
930 | hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he)); |
931 | |
463ee0b2 |
932 | return 0; |
933 | } |
934 | |
a0d0e21e |
935 | #ifdef OVERLOAD |
936 | |
463ee0b2 |
937 | int |
8ac85365 |
938 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 |
939 | { |
a0d0e21e |
940 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
941 | amagic_generation++; |
463ee0b2 |
942 | |
a0d0e21e |
943 | return 0; |
944 | } |
945 | #endif /* OVERLOAD */ |
463ee0b2 |
946 | |
946ec16e |
947 | int |
8ac85365 |
948 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e |
949 | { |
950 | if (LvTARG(sv)) { |
951 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
952 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ |
953 | } |
954 | return 0; |
93965878 |
955 | } |
946ec16e |
956 | |
a0d0e21e |
957 | static int |
93965878 |
958 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
959 | { |
960 | dSP; |
463ee0b2 |
961 | |
a0d0e21e |
962 | PUSHMARK(sp); |
93965878 |
963 | EXTEND(sp, n); |
a0d0e21e |
964 | PUSHs(mg->mg_obj); |
93965878 |
965 | if (n > 1) { |
966 | if (mg->mg_ptr) { |
967 | if (mg->mg_len >= 0) |
968 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
969 | else if (mg->mg_len == HEf_SVKEY) |
970 | PUSHs((SV*)mg->mg_ptr); |
971 | } |
972 | else if (mg->mg_type == 'p') { |
973 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
974 | } |
975 | } |
976 | if (n > 2) { |
977 | PUSHs(val); |
88e89b8a |
978 | } |
463ee0b2 |
979 | PUTBACK; |
980 | |
93965878 |
981 | return perl_call_method(meth, flags); |
982 | } |
983 | |
984 | static int |
985 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
986 | { |
987 | dSP; |
988 | |
989 | ENTER; |
990 | SAVETMPS; |
991 | |
992 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { |
a0d0e21e |
993 | sv_setsv(sv, *stack_sp--); |
93965878 |
994 | } |
463ee0b2 |
995 | |
a0d0e21e |
996 | FREETMPS; |
997 | LEAVE; |
998 | return 0; |
999 | } |
463ee0b2 |
1000 | |
a0d0e21e |
1001 | int |
8ac85365 |
1002 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e |
1003 | { |
1004 | magic_methpack(sv,mg,"FETCH"); |
1005 | if (mg->mg_ptr) |
1006 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1007 | return 0; |
1008 | } |
1009 | |
1010 | int |
8ac85365 |
1011 | magic_setpack(SV *sv, MAGIC *mg) |
a60c0954 |
1012 | { |
1013 | ENTER; |
93965878 |
1014 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
a60c0954 |
1015 | LEAVE; |
463ee0b2 |
1016 | return 0; |
1017 | } |
1018 | |
1019 | int |
8ac85365 |
1020 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 |
1021 | { |
a0d0e21e |
1022 | return magic_methpack(sv,mg,"DELETE"); |
1023 | } |
463ee0b2 |
1024 | |
93965878 |
1025 | |
1026 | U32 |
1027 | magic_sizepack(SV *sv, MAGIC *mg) |
1028 | { |
1029 | dTHR; |
1030 | U32 retval = 0; |
1031 | |
1032 | ENTER; |
1033 | SAVETMPS; |
1034 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
1035 | sv = *stack_sp--; |
a60c0954 |
1036 | retval = (U32) SvIV(sv)-1; |
93965878 |
1037 | } |
1038 | FREETMPS; |
1039 | LEAVE; |
1040 | return retval; |
1041 | } |
1042 | |
8ac85365 |
1043 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e |
1044 | { |
1045 | dSP; |
463ee0b2 |
1046 | |
a0d0e21e |
1047 | PUSHMARK(sp); |
1048 | XPUSHs(mg->mg_obj); |
463ee0b2 |
1049 | PUTBACK; |
a60c0954 |
1050 | ENTER; |
a0d0e21e |
1051 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
a60c0954 |
1052 | LEAVE; |
463ee0b2 |
1053 | return 0; |
1054 | } |
1055 | |
1056 | int |
8ac85365 |
1057 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1058 | { |
463ee0b2 |
1059 | dSP; |
a0d0e21e |
1060 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1061 | |
1062 | ENTER; |
a0d0e21e |
1063 | SAVETMPS; |
1064 | PUSHMARK(sp); |
1065 | EXTEND(sp, 2); |
1066 | PUSHs(mg->mg_obj); |
463ee0b2 |
1067 | if (SvOK(key)) |
1068 | PUSHs(key); |
1069 | PUTBACK; |
1070 | |
a0d0e21e |
1071 | if (perl_call_method(meth, G_SCALAR)) |
1072 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
1073 | |
a0d0e21e |
1074 | FREETMPS; |
1075 | LEAVE; |
79072805 |
1076 | return 0; |
1077 | } |
1078 | |
1079 | int |
8ac85365 |
1080 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e |
1081 | { |
1082 | return magic_methpack(sv,mg,"EXISTS"); |
1083 | } |
1084 | |
1085 | int |
8ac85365 |
1086 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 |
1087 | { |
11343788 |
1088 | dTHR; |
79072805 |
1089 | OP *o; |
1090 | I32 i; |
1091 | GV* gv; |
1092 | SV** svp; |
1093 | |
1094 | gv = DBline; |
1095 | i = SvTRUE(sv); |
188ea221 |
1096 | svp = av_fetch(GvAV(gv), |
5aabfad6 |
1097 | atoi(MgPV(mg,na)), FALSE); |
8990e307 |
1098 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
1099 | o->op_private = i; |
79072805 |
1100 | else |
1101 | warn("Can't break at that line\n"); |
1102 | return 0; |
1103 | } |
1104 | |
1105 | int |
8ac85365 |
1106 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 |
1107 | { |
0f15f207 |
1108 | dTHR; |
a0d0e21e |
1109 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
1110 | return 0; |
1111 | } |
1112 | |
1113 | int |
8ac85365 |
1114 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 |
1115 | { |
0f15f207 |
1116 | dTHR; |
a0d0e21e |
1117 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1118 | return 0; |
1119 | } |
1120 | |
1121 | int |
8ac85365 |
1122 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1123 | { |
1124 | SV* lsv = LvTARG(sv); |
1125 | |
1126 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1127 | mg = mg_find(lsv, 'g'); |
1128 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1129 | dTHR; |
a0d0e21e |
1130 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1131 | return 0; |
1132 | } |
1133 | } |
1134 | (void)SvOK_off(sv); |
1135 | return 0; |
1136 | } |
1137 | |
1138 | int |
8ac85365 |
1139 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1140 | { |
1141 | SV* lsv = LvTARG(sv); |
1142 | SSize_t pos; |
1143 | STRLEN len; |
1144 | |
1145 | mg = 0; |
1146 | |
1147 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1148 | mg = mg_find(lsv, 'g'); |
1149 | if (!mg) { |
1150 | if (!SvOK(sv)) |
1151 | return 0; |
1152 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1153 | mg = mg_find(lsv, 'g'); |
1154 | } |
1155 | else if (!SvOK(sv)) { |
1156 | mg->mg_len = -1; |
1157 | return 0; |
1158 | } |
1159 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1160 | |
0f15f207 |
1161 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e |
1162 | if (pos < 0) { |
1163 | pos += len; |
1164 | if (pos < 0) |
1165 | pos = 0; |
1166 | } |
1167 | else if (pos > len) |
1168 | pos = len; |
1169 | mg->mg_len = pos; |
71be2cbc |
1170 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1171 | |
79072805 |
1172 | return 0; |
1173 | } |
1174 | |
1175 | int |
8ac85365 |
1176 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 |
1177 | { |
8646b087 |
1178 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1179 | SvFAKE_off(sv); |
946ec16e |
1180 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1181 | SvFAKE_on(sv); |
1182 | } |
1183 | else |
946ec16e |
1184 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1185 | return 0; |
1186 | } |
1187 | |
1188 | int |
8ac85365 |
1189 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 |
1190 | { |
1191 | register char *s; |
1192 | GV* gv; |
1193 | |
1194 | if (!SvOK(sv)) |
1195 | return 0; |
463ee0b2 |
1196 | s = SvPV(sv, na); |
79072805 |
1197 | if (*s == '*' && s[1]) |
1198 | s++; |
85e6fe83 |
1199 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1200 | if (sv == (SV*)gv) |
1201 | return 0; |
1202 | if (GvGP(sv)) |
88e89b8a |
1203 | gp_free((GV*)sv); |
79072805 |
1204 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1205 | return 0; |
1206 | } |
1207 | |
1208 | int |
8ac85365 |
1209 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 |
1210 | { |
8990e307 |
1211 | STRLEN len; |
1212 | char *tmps = SvPV(sv,len); |
1213 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1214 | return 0; |
1215 | } |
1216 | |
1217 | int |
8ac85365 |
1218 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1219 | { |
a863c7d1 |
1220 | dTHR; |
bbce6d69 |
1221 | TAINT_IF((mg->mg_len & 1) || |
1222 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1223 | return 0; |
1224 | } |
1225 | |
1226 | int |
8ac85365 |
1227 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1228 | { |
11343788 |
1229 | dTHR; |
748a9306 |
1230 | if (localizing) { |
1231 | if (localizing == 1) |
1232 | mg->mg_len <<= 1; |
1233 | else |
1234 | mg->mg_len >>= 1; |
a0d0e21e |
1235 | } |
748a9306 |
1236 | else if (tainted) |
1237 | mg->mg_len |= 1; |
1238 | else |
1239 | mg->mg_len &= ~1; |
463ee0b2 |
1240 | return 0; |
1241 | } |
1242 | |
1243 | int |
8ac85365 |
1244 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 |
1245 | { |
1246 | do_vecset(sv); /* XXX slurp this routine */ |
1247 | return 0; |
1248 | } |
1249 | |
1250 | int |
8ac85365 |
1251 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1252 | { |
71be2cbc |
1253 | SV *targ = Nullsv; |
5f05dabc |
1254 | if (LvTARGLEN(sv)) { |
68dc0745 |
1255 | if (mg->mg_obj) { |
1256 | HV* hv = (HV*)LvTARG(sv); |
1257 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); |
1258 | if (he) |
1259 | targ = HeVAL(he); |
1260 | } |
1261 | else { |
93965878 |
1262 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1263 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1264 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1265 | } |
1266 | if (targ && targ != &sv_undef) { |
e858de61 |
1267 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1268 | /* somebody else defined it for us */ |
1269 | SvREFCNT_dec(LvTARG(sv)); |
1270 | LvTARG(sv) = SvREFCNT_inc(targ); |
1271 | LvTARGLEN(sv) = 0; |
1272 | SvREFCNT_dec(mg->mg_obj); |
1273 | mg->mg_obj = Nullsv; |
1274 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1275 | } |
5f05dabc |
1276 | } |
71be2cbc |
1277 | else |
1278 | targ = LvTARG(sv); |
1279 | sv_setsv(sv, targ ? targ : &sv_undef); |
1280 | return 0; |
1281 | } |
1282 | |
1283 | int |
8ac85365 |
1284 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc |
1285 | { |
1286 | if (LvTARGLEN(sv)) |
68dc0745 |
1287 | vivify_defelem(sv); |
1288 | if (LvTARG(sv)) { |
5f05dabc |
1289 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1290 | SvSETMAGIC(LvTARG(sv)); |
1291 | } |
5f05dabc |
1292 | return 0; |
1293 | } |
1294 | |
1295 | int |
8ac85365 |
1296 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1297 | { |
1298 | SvREFCNT_dec(LvTARG(sv)); |
71be2cbc |
1299 | return 0; |
1300 | } |
1301 | |
1302 | void |
8ac85365 |
1303 | vivify_defelem(SV *sv) |
71be2cbc |
1304 | { |
e858de61 |
1305 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 |
1306 | MAGIC* mg; |
1307 | SV* value; |
71be2cbc |
1308 | |
68dc0745 |
1309 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1310 | return; |
68dc0745 |
1311 | if (mg->mg_obj) { |
1312 | HV* hv = (HV*)LvTARG(sv); |
1313 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); |
1314 | if (!he || (value = HeVAL(he)) == &sv_undef) |
1315 | croak(no_helem, SvPV(mg->mg_obj, na)); |
71be2cbc |
1316 | } |
68dc0745 |
1317 | else { |
1318 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1319 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1320 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1321 | else { |
1322 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
1323 | if (!svp || (value = *svp) == &sv_undef) |
1324 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1325 | } |
1326 | } |
3e3baf6d |
1327 | (void)SvREFCNT_inc(value); |
68dc0745 |
1328 | SvREFCNT_dec(LvTARG(sv)); |
1329 | LvTARG(sv) = value; |
71be2cbc |
1330 | LvTARGLEN(sv) = 0; |
68dc0745 |
1331 | SvREFCNT_dec(mg->mg_obj); |
1332 | mg->mg_obj = Nullsv; |
1333 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1334 | } |
1335 | |
1336 | int |
8ac85365 |
1337 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 |
1338 | { |
a0d0e21e |
1339 | mg->mg_len = -1; |
c6496cc7 |
1340 | SvSCREAM_off(sv); |
93a17b20 |
1341 | return 0; |
1342 | } |
1343 | |
1344 | int |
8ac85365 |
1345 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 |
1346 | { |
463ee0b2 |
1347 | sv_unmagic(sv, 'B'); |
79072805 |
1348 | SvVALID_off(sv); |
1349 | return 0; |
1350 | } |
1351 | |
1352 | int |
8ac85365 |
1353 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff |
1354 | { |
1355 | sv_unmagic(sv, 'f'); |
1356 | SvCOMPILED_off(sv); |
1357 | return 0; |
1358 | } |
1359 | |
1360 | int |
8ac85365 |
1361 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 |
1362 | { |
1363 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1364 | |
1365 | if (uf && uf->uf_set) |
1366 | (*uf->uf_set)(uf->uf_index, sv); |
1367 | return 0; |
1368 | } |
1369 | |
c277df42 |
1370 | int |
1371 | magic_freeregexp(SV *sv, MAGIC *mg) |
1372 | { |
1373 | regexp *re = (regexp *)mg->mg_obj; |
1374 | ReREFCNT_dec(re); |
1375 | return 0; |
1376 | } |
1377 | |
7a4c00b4 |
1378 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1379 | int |
8ac85365 |
1380 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 |
1381 | { |
1382 | /* |
1383 | * René Descartes said "I think not." |
1384 | * and vanished with a faint plop. |
1385 | */ |
7a4c00b4 |
1386 | if (mg->mg_ptr) { |
1387 | Safefree(mg->mg_ptr); |
1388 | mg->mg_ptr = NULL; |
1389 | mg->mg_len = -1; |
1390 | } |
bbce6d69 |
1391 | return 0; |
1392 | } |
7a4c00b4 |
1393 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1394 | |
1395 | int |
8ac85365 |
1396 | magic_set(SV *sv, MAGIC *mg) |
79072805 |
1397 | { |
11343788 |
1398 | dTHR; |
79072805 |
1399 | register char *s; |
1400 | I32 i; |
8990e307 |
1401 | STRLEN len; |
79072805 |
1402 | switch (*mg->mg_ptr) { |
748a9306 |
1403 | case '\001': /* ^A */ |
1404 | sv_setsv(bodytarget, sv); |
1405 | break; |
79072805 |
1406 | case '\004': /* ^D */ |
8990e307 |
1407 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1408 | DEBUG_x(dump_all()); |
1409 | break; |
28f23441 |
1410 | case '\005': /* ^E */ |
1411 | #ifdef VMS |
1412 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1413 | #else |
22fae026 |
1414 | #ifdef WIN32 |
1415 | SetLastError( SvIV(sv) ); |
1416 | #else |
f86702cc |
1417 | /* will anyone ever use this? */ |
1418 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1419 | #endif |
22fae026 |
1420 | #endif |
28f23441 |
1421 | break; |
79072805 |
1422 | case '\006': /* ^F */ |
463ee0b2 |
1423 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1424 | break; |
a0d0e21e |
1425 | case '\010': /* ^H */ |
1426 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1427 | break; |
79072805 |
1428 | case '\t': /* ^I */ |
1429 | if (inplace) |
1430 | Safefree(inplace); |
1431 | if (SvOK(sv)) |
a0d0e21e |
1432 | inplace = savepv(SvPV(sv,na)); |
79072805 |
1433 | else |
1434 | inplace = Nullch; |
1435 | break; |
28f23441 |
1436 | case '\017': /* ^O */ |
1437 | if (osname) |
1438 | Safefree(osname); |
1439 | if (SvOK(sv)) |
1440 | osname = savepv(SvPV(sv,na)); |
1441 | else |
1442 | osname = Nullch; |
1443 | break; |
79072805 |
1444 | case '\020': /* ^P */ |
84902520 |
1445 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1446 | break; |
1447 | case '\024': /* ^T */ |
88e89b8a |
1448 | #ifdef BIG_TIME |
1449 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
1450 | #else |
85e6fe83 |
1451 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1452 | #endif |
79072805 |
1453 | break; |
1454 | case '\027': /* ^W */ |
463ee0b2 |
1455 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1456 | break; |
1457 | case '.': |
748a9306 |
1458 | if (localizing) { |
1459 | if (localizing == 1) |
1460 | save_sptr((SV**)&last_in_gv); |
1461 | } |
88e89b8a |
1462 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e |
1463 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1464 | break; |
1465 | case '^': |
a0d0e21e |
1466 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1467 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1468 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1469 | break; |
1470 | case '~': |
a0d0e21e |
1471 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1472 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1473 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1474 | break; |
1475 | case '=': |
a0d0e21e |
1476 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1477 | break; |
1478 | case '-': |
a0d0e21e |
1479 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1480 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1481 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1482 | break; |
1483 | case '%': |
a0d0e21e |
1484 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1485 | break; |
1486 | case '|': |
4b65379b |
1487 | { |
1488 | IO *io = GvIOp(defoutgv); |
1489 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1490 | IoFLAGS(io) &= ~IOf_FLUSH; |
1491 | else { |
1492 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1493 | PerlIO *ofp = IoOFP(io); |
1494 | if (ofp) |
1495 | (void)PerlIO_flush(ofp); |
1496 | IoFLAGS(io) |= IOf_FLUSH; |
1497 | } |
1498 | } |
79072805 |
1499 | } |
1500 | break; |
1501 | case '*': |
463ee0b2 |
1502 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1503 | multiline = (i != 0); |
1504 | break; |
1505 | case '/': |
c07a80fd |
1506 | SvREFCNT_dec(nrs); |
1507 | nrs = newSVsv(sv); |
1508 | SvREFCNT_dec(rs); |
1509 | rs = SvREFCNT_inc(nrs); |
79072805 |
1510 | break; |
1511 | case '\\': |
1512 | if (ors) |
1513 | Safefree(ors); |
e3c19b7b |
1514 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1515 | ors = savepv(SvPV(sv,orslen)); |
1516 | else { |
1517 | ors = Nullch; |
1518 | orslen = 0; |
1519 | } |
79072805 |
1520 | break; |
1521 | case ',': |
1522 | if (ofs) |
1523 | Safefree(ofs); |
a0d0e21e |
1524 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1525 | break; |
1526 | case '#': |
1527 | if (ofmt) |
1528 | Safefree(ofmt); |
a0d0e21e |
1529 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1530 | break; |
1531 | case '[': |
a0d0e21e |
1532 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1533 | break; |
1534 | case '?': |
ff0cee69 |
1535 | #ifdef COMPLEX_STATUS |
1536 | if (localizing == 2) { |
1537 | statusvalue = LvTARGOFF(sv); |
1538 | statusvalue_vms = LvTARGLEN(sv); |
1539 | } |
1540 | else |
1541 | #endif |
1542 | #ifdef VMSISH_STATUS |
1543 | if (VMSISH_STATUS) |
1544 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1545 | else |
1546 | #endif |
1547 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1548 | break; |
1549 | case '!': |
f86702cc |
1550 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1551 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1552 | break; |
1553 | case '<': |
463ee0b2 |
1554 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1555 | if (delaymagic) { |
1556 | delaymagic |= DM_RUID; |
1557 | break; /* don't do magic till later */ |
1558 | } |
1559 | #ifdef HAS_SETRUID |
85e6fe83 |
1560 | (void)setruid((Uid_t)uid); |
79072805 |
1561 | #else |
1562 | #ifdef HAS_SETREUID |
85e6fe83 |
1563 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1564 | #else |
85e6fe83 |
1565 | #ifdef HAS_SETRESUID |
1566 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1567 | #else |
1568 | if (uid == euid) /* special case $< = $> */ |
1569 | (void)setuid(uid); |
a0d0e21e |
1570 | else { |
1571 | uid = (I32)getuid(); |
463ee0b2 |
1572 | croak("setruid() not implemented"); |
a0d0e21e |
1573 | } |
79072805 |
1574 | #endif |
1575 | #endif |
85e6fe83 |
1576 | #endif |
748a9306 |
1577 | uid = (I32)getuid(); |
4633a7c4 |
1578 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1579 | break; |
1580 | case '>': |
463ee0b2 |
1581 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1582 | if (delaymagic) { |
1583 | delaymagic |= DM_EUID; |
1584 | break; /* don't do magic till later */ |
1585 | } |
1586 | #ifdef HAS_SETEUID |
85e6fe83 |
1587 | (void)seteuid((Uid_t)euid); |
79072805 |
1588 | #else |
1589 | #ifdef HAS_SETREUID |
85e6fe83 |
1590 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1591 | #else |
1592 | #ifdef HAS_SETRESUID |
1593 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1594 | #else |
1595 | if (euid == uid) /* special case $> = $< */ |
1596 | setuid(euid); |
a0d0e21e |
1597 | else { |
1598 | euid = (I32)geteuid(); |
463ee0b2 |
1599 | croak("seteuid() not implemented"); |
a0d0e21e |
1600 | } |
79072805 |
1601 | #endif |
1602 | #endif |
85e6fe83 |
1603 | #endif |
79072805 |
1604 | euid = (I32)geteuid(); |
4633a7c4 |
1605 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1606 | break; |
1607 | case '(': |
463ee0b2 |
1608 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1609 | if (delaymagic) { |
1610 | delaymagic |= DM_RGID; |
1611 | break; /* don't do magic till later */ |
1612 | } |
1613 | #ifdef HAS_SETRGID |
85e6fe83 |
1614 | (void)setrgid((Gid_t)gid); |
79072805 |
1615 | #else |
1616 | #ifdef HAS_SETREGID |
85e6fe83 |
1617 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1618 | #else |
1619 | #ifdef HAS_SETRESGID |
1620 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1621 | #else |
1622 | if (gid == egid) /* special case $( = $) */ |
1623 | (void)setgid(gid); |
748a9306 |
1624 | else { |
1625 | gid = (I32)getgid(); |
463ee0b2 |
1626 | croak("setrgid() not implemented"); |
748a9306 |
1627 | } |
79072805 |
1628 | #endif |
1629 | #endif |
85e6fe83 |
1630 | #endif |
79072805 |
1631 | gid = (I32)getgid(); |
4633a7c4 |
1632 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1633 | break; |
1634 | case ')': |
5cd24f17 |
1635 | #ifdef HAS_SETGROUPS |
1636 | { |
1637 | char *p = SvPV(sv, na); |
1638 | Groups_t gary[NGROUPS]; |
1639 | |
1640 | SET_NUMERIC_STANDARD(); |
1641 | while (isSPACE(*p)) |
1642 | ++p; |
1643 | egid = I_V(atof(p)); |
1644 | for (i = 0; i < NGROUPS; ++i) { |
1645 | while (*p && !isSPACE(*p)) |
1646 | ++p; |
1647 | while (isSPACE(*p)) |
1648 | ++p; |
1649 | if (!*p) |
1650 | break; |
1651 | gary[i] = I_V(atof(p)); |
1652 | } |
8cc95fdb |
1653 | if (i) |
1654 | (void)setgroups(i, gary); |
5cd24f17 |
1655 | } |
1656 | #else /* HAS_SETGROUPS */ |
463ee0b2 |
1657 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1658 | #endif /* HAS_SETGROUPS */ |
79072805 |
1659 | if (delaymagic) { |
1660 | delaymagic |= DM_EGID; |
1661 | break; /* don't do magic till later */ |
1662 | } |
1663 | #ifdef HAS_SETEGID |
85e6fe83 |
1664 | (void)setegid((Gid_t)egid); |
79072805 |
1665 | #else |
1666 | #ifdef HAS_SETREGID |
85e6fe83 |
1667 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1668 | #else |
1669 | #ifdef HAS_SETRESGID |
1670 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1671 | #else |
1672 | if (egid == gid) /* special case $) = $( */ |
1673 | (void)setgid(egid); |
748a9306 |
1674 | else { |
1675 | egid = (I32)getegid(); |
463ee0b2 |
1676 | croak("setegid() not implemented"); |
748a9306 |
1677 | } |
79072805 |
1678 | #endif |
1679 | #endif |
85e6fe83 |
1680 | #endif |
79072805 |
1681 | egid = (I32)getegid(); |
4633a7c4 |
1682 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1683 | break; |
1684 | case ':': |
a0d0e21e |
1685 | chopset = SvPV_force(sv,na); |
79072805 |
1686 | break; |
1687 | case '0': |
1688 | if (!origalen) { |
1689 | s = origargv[0]; |
1690 | s += strlen(s); |
1691 | /* See if all the arguments are contiguous in memory */ |
1692 | for (i = 1; i < origargc; i++) { |
fb73857a |
1693 | if (origargv[i] == s + 1 |
1694 | #ifdef OS2 |
1695 | || origargv[i] == s + 2 |
1696 | #endif |
1697 | ) |
79072805 |
1698 | s += strlen(++s); /* this one is ok too */ |
fb73857a |
1699 | else |
1700 | break; |
79072805 |
1701 | } |
bbce6d69 |
1702 | /* can grab env area too? */ |
fb73857a |
1703 | if (origenviron && (origenviron[0] == s + 1 |
1704 | #ifdef OS2 |
1705 | || (origenviron[0] == s + 9 && (s += 8)) |
1706 | #endif |
1707 | )) { |
66b1d557 |
1708 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
1709 | /* force copy of environment */ |
1710 | for (i = 0; origenviron[i]; i++) |
1711 | if (origenviron[i] == s + 1) |
1712 | s += strlen(++s); |
fb73857a |
1713 | else |
1714 | break; |
79072805 |
1715 | } |
1716 | origalen = s - origargv[0]; |
1717 | } |
a0d0e21e |
1718 | s = SvPV_force(sv,len); |
8990e307 |
1719 | i = len; |
79072805 |
1720 | if (i >= origalen) { |
1721 | i = origalen; |
fb73857a |
1722 | /* don't allow system to limit $0 seen by script */ |
1723 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
79072805 |
1724 | Copy(s, origargv[0], i, char); |
fb73857a |
1725 | s = origargv[0]+i; |
1726 | *s = '\0'; |
79072805 |
1727 | } |
1728 | else { |
1729 | Copy(s, origargv[0], i, char); |
1730 | s = origargv[0]+i; |
1731 | *s++ = '\0'; |
1732 | while (++i < origalen) |
8990e307 |
1733 | *s++ = ' '; |
1734 | s = origargv[0]+i; |
ed6116ce |
1735 | for (i = 1; i < origargc; i++) |
8990e307 |
1736 | origargv[i] = Nullch; |
79072805 |
1737 | } |
1738 | break; |
a863c7d1 |
1739 | #ifdef USE_THREADS |
1740 | case '@': |
38a03e6e |
1741 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
1742 | break; |
1743 | #endif /* USE_THREADS */ |
79072805 |
1744 | } |
1745 | return 0; |
1746 | } |
1747 | |
f93b4edd |
1748 | #ifdef USE_THREADS |
1749 | int |
8ac85365 |
1750 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd |
1751 | { |
1752 | dTHR; |
bc1f4c86 |
1753 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1754 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
1755 | if (MgOWNER(mg)) |
1756 | croak("panic: magic_mutexfree"); |
1757 | MUTEX_DESTROY(MgMUTEXP(mg)); |
1758 | COND_DESTROY(MgCONDP(mg)); |
e55aaa0e |
1759 | SvREFCNT_dec(sv); |
f93b4edd |
1760 | return 0; |
1761 | } |
1762 | #endif /* USE_THREADS */ |
1763 | |
79072805 |
1764 | I32 |
8ac85365 |
1765 | whichsig(char *sig) |
79072805 |
1766 | { |
1767 | register char **sigv; |
1768 | |
1769 | for (sigv = sig_name+1; *sigv; sigv++) |
1770 | if (strEQ(sig,*sigv)) |
8e07c86e |
1771 | return sig_num[sigv - sig_name]; |
79072805 |
1772 | #ifdef SIGCLD |
1773 | if (strEQ(sig,"CHLD")) |
1774 | return SIGCLD; |
1775 | #endif |
1776 | #ifdef SIGCHLD |
1777 | if (strEQ(sig,"CLD")) |
1778 | return SIGCHLD; |
1779 | #endif |
1780 | return 0; |
1781 | } |
1782 | |
84902520 |
1783 | static SV* sig_sv; |
1784 | |
1785 | static void |
8ac85365 |
1786 | unwind_handler_stack(void *p) |
84902520 |
1787 | { |
ff26ac79 |
1788 | dTHR; |
84902520 |
1789 | U32 flags = *(U32*)p; |
1790 | |
1791 | if (flags & 1) |
1792 | savestack_ix -= 5; /* Unprotect save in progress. */ |
1793 | /* cxstack_ix-- Not needed, die already unwound it. */ |
1794 | if (flags & 64) |
1795 | SvREFCNT_dec(sig_sv); |
1796 | } |
1797 | |
ecfc5424 |
1798 | Signal_t |
8ac85365 |
1799 | sighandler(int sig) |
79072805 |
1800 | { |
1801 | dSP; |
00d579c5 |
1802 | GV *gv = Nullgv; |
a0d0e21e |
1803 | HV *st; |
84902520 |
1804 | SV *sv, *tSv = Sv; |
00d579c5 |
1805 | CV *cv = Nullcv; |
79072805 |
1806 | AV *oldstack; |
84902520 |
1807 | OP *myop = op; |
1808 | U32 flags = 0; |
1809 | I32 o_save_i = savestack_ix, type; |
c09156bb |
1810 | PERL_CONTEXT *cx; |
84902520 |
1811 | XPV *tXpv = Xpv; |
1812 | |
1813 | if (savestack_ix + 15 <= savestack_max) |
1814 | flags |= 1; |
1815 | if (cxstack_ix < cxstack_max - 2) |
1816 | flags |= 2; |
1817 | if (markstack_ptr < markstack_max - 2) |
1818 | flags |= 4; |
1819 | if (retstack_ix < retstack_max - 2) |
1820 | flags |= 8; |
1821 | if (scopestack_ix < scopestack_max - 3) |
1822 | flags |= 16; |
1823 | |
1824 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ |
1825 | cxstack_ix++; /* Protect from overwrite. */ |
1826 | cx = &cxstack[cxstack_ix]; |
1827 | type = cx->cx_type; /* Can be during partial write. */ |
1828 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ |
1829 | } |
ff0cee69 |
1830 | if (!psig_ptr[sig]) |
1831 | die("Signal SIG%s received, but no signal handler set.\n", |
1832 | sig_name[sig]); |
1833 | |
84902520 |
1834 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1835 | infinity, so we fix 4 (in fact 5): */ |
1836 | if (flags & 1) { |
1837 | savestack_ix += 5; /* Protect save in progress. */ |
1838 | o_save_i = savestack_ix; |
1839 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
1840 | } |
1841 | if (flags & 4) |
1842 | markstack_ptr++; /* Protect mark. */ |
1843 | if (flags & 8) { |
1844 | retstack_ix++; |
1845 | retstack[retstack_ix] = NULL; |
1846 | } |
1847 | if (flags & 16) |
1848 | scopestack_ix += 1; |
1849 | /* sv_2cv is too complicated, try a simpler variant first: */ |
1850 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) |
1851 | || SvTYPE(cv) != SVt_PVCV) |
1852 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
1853 | |
a0d0e21e |
1854 | if (!cv || !CvROOT(cv)) { |
79072805 |
1855 | if (dowarn) |
1856 | warn("SIG%s handler \"%s\" not defined.\n", |
00d579c5 |
1857 | sig_name[sig], (gv ? GvENAME(gv) |
1858 | : ((cv && CvGV(cv)) |
1859 | ? GvENAME(CvGV(cv)) |
1860 | : "__ANON__"))); |
1861 | goto cleanup; |
79072805 |
1862 | } |
1863 | |
88e89b8a |
1864 | oldstack = curstack; |
1865 | if (curstack != signalstack) |
93965878 |
1866 | AvFILLp(signalstack) = 0; |
88e89b8a |
1867 | SWITCHSTACK(curstack, signalstack); |
79072805 |
1868 | |
84902520 |
1869 | if(psig_name[sig]) { |
88e89b8a |
1870 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 |
1871 | flags |= 64; |
1872 | sig_sv = sv; |
1873 | } else { |
ff0cee69 |
1874 | sv = sv_newmortal(); |
1875 | sv_setpv(sv,sig_name[sig]); |
88e89b8a |
1876 | } |
a0d0e21e |
1877 | PUSHMARK(sp); |
79072805 |
1878 | PUSHs(sv); |
79072805 |
1879 | PUTBACK; |
a0d0e21e |
1880 | |
1881 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1882 | |
1883 | SWITCHSTACK(signalstack, oldstack); |
00d579c5 |
1884 | cleanup: |
84902520 |
1885 | if (flags & 1) |
1886 | savestack_ix -= 8; /* Unprotect save in progress. */ |
1887 | if (flags & 2) { |
1888 | cxstack[cxstack_ix].cx_type = type; |
1889 | cxstack_ix -= 1; |
1890 | } |
1891 | if (flags & 4) |
1892 | markstack_ptr--; |
1893 | if (flags & 8) |
1894 | retstack_ix--; |
1895 | if (flags & 16) |
1896 | scopestack_ix -= 1; |
1897 | if (flags & 64) |
1898 | SvREFCNT_dec(sv); |
1899 | op = myop; /* Apparently not needed... */ |
1900 | |
1901 | Sv = tSv; /* Restore global temporaries. */ |
1902 | Xpv = tXpv; |
79072805 |
1903 | return; |
1904 | } |
4e35701f |
1905 | |
1906 | |