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 | |
76e3520e |
33 | #ifdef PERL_OBJECT |
34 | static void UnwindHandler(void *pPerl, void *ptr) |
35 | { |
36 | ((CPerlObj*)pPerl)->unwind_handler_stack(ptr); |
37 | } |
38 | |
39 | static void RestoreMagic(void *pPerl, void *ptr) |
40 | { |
41 | ((CPerlObj*)pPerl)->restore_magic(ptr); |
42 | } |
43 | #define UNWINDHANDLER UnwindHandler |
44 | #define RESTOREMAGIC RestoreMagic |
45 | #define VTBL this->*vtbl |
46 | |
47 | #else |
c07a80fd |
48 | struct magic_state { |
49 | SV* mgs_sv; |
50 | U32 mgs_flags; |
51 | }; |
52 | typedef struct magic_state MGS; |
53 | |
54 | static void restore_magic _((void *p)); |
76e3520e |
55 | #define UNWINDHANDLER unwind_handler_stack |
56 | #define RESTOREMAGIC restore_magic |
57 | #define VTBL *vtbl |
c07a80fd |
58 | |
76e3520e |
59 | #endif |
60 | |
61 | STATIC void |
8ac85365 |
62 | save_magic(MGS *mgs, SV *sv) |
c07a80fd |
63 | { |
c07a80fd |
64 | assert(SvMAGICAL(sv)); |
65 | |
c07a80fd |
66 | mgs->mgs_sv = sv; |
67 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
76e3520e |
68 | SAVEDESTRUCTOR(RESTOREMAGIC, mgs); |
c07a80fd |
69 | |
70 | SvMAGICAL_off(sv); |
71 | SvREADONLY_off(sv); |
72 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
73 | } |
74 | |
76e3520e |
75 | STATIC void |
8ac85365 |
76 | restore_magic(void *p) |
c07a80fd |
77 | { |
48e43a1c |
78 | MGS* mgs = (MGS*)p; |
c07a80fd |
79 | SV* sv = mgs->mgs_sv; |
80 | |
81 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
82 | { |
83 | if (mgs->mgs_flags) |
84 | SvFLAGS(sv) |= mgs->mgs_flags; |
85 | else |
86 | mg_magical(sv); |
87 | if (SvGMAGICAL(sv)) |
88 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
89 | } |
c07a80fd |
90 | } |
91 | |
8990e307 |
92 | void |
8ac85365 |
93 | mg_magical(SV *sv) |
8990e307 |
94 | { |
95 | MAGIC* mg; |
96 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
97 | MGVTBL* vtbl = mg->mg_virtual; |
98 | if (vtbl) { |
76e3520e |
99 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
100 | SvGMAGICAL_on(sv); |
101 | if (vtbl->svt_set) |
102 | SvSMAGICAL_on(sv); |
76e3520e |
103 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 |
104 | SvRMAGICAL_on(sv); |
105 | } |
106 | } |
107 | } |
108 | |
79072805 |
109 | int |
8ac85365 |
110 | mg_get(SV *sv) |
79072805 |
111 | { |
48e43a1c |
112 | MGS mgs; |
79072805 |
113 | MAGIC* mg; |
c6496cc7 |
114 | MAGIC** mgp; |
760ac839 |
115 | int mgp_valid = 0; |
463ee0b2 |
116 | |
c07a80fd |
117 | ENTER; |
48e43a1c |
118 | save_magic(&mgs, sv); |
463ee0b2 |
119 | |
c6496cc7 |
120 | mgp = &SvMAGIC(sv); |
121 | while ((mg = *mgp) != 0) { |
79072805 |
122 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e |
123 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
124 | (VTBL->svt_get)(sv, mg); |
c6496cc7 |
125 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
126 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
127 | (mg->mg_flags & MGf_GSKIP)) |
128 | mgs.mgs_flags = 0; |
a0d0e21e |
129 | } |
c6496cc7 |
130 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
131 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
132 | mgp = &mg->mg_moremagic; |
760ac839 |
133 | mgp_valid = 1; |
134 | } |
135 | else |
136 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
137 | } |
463ee0b2 |
138 | |
c07a80fd |
139 | LEAVE; |
79072805 |
140 | return 0; |
141 | } |
142 | |
143 | int |
8ac85365 |
144 | mg_set(SV *sv) |
79072805 |
145 | { |
48e43a1c |
146 | MGS mgs; |
79072805 |
147 | MAGIC* mg; |
463ee0b2 |
148 | MAGIC* nextmg; |
149 | |
c07a80fd |
150 | ENTER; |
48e43a1c |
151 | save_magic(&mgs, sv); |
463ee0b2 |
152 | |
153 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
154 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
155 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
156 | if (mg->mg_flags & MGf_GSKIP) { |
157 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
48e43a1c |
158 | mgs.mgs_flags = 0; |
a0d0e21e |
159 | } |
76e3520e |
160 | if (vtbl && (vtbl->svt_set != NULL)) |
161 | (VTBL->svt_set)(sv, mg); |
79072805 |
162 | } |
463ee0b2 |
163 | |
c07a80fd |
164 | LEAVE; |
79072805 |
165 | return 0; |
166 | } |
167 | |
168 | U32 |
8ac85365 |
169 | mg_len(SV *sv) |
79072805 |
170 | { |
171 | MAGIC* mg; |
748a9306 |
172 | char *junk; |
463ee0b2 |
173 | STRLEN len; |
463ee0b2 |
174 | |
79072805 |
175 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
176 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e |
177 | if (vtbl && (vtbl->svt_len != NULL)) { |
48e43a1c |
178 | MGS mgs; |
179 | |
c07a80fd |
180 | ENTER; |
48e43a1c |
181 | save_magic(&mgs, sv); |
a0d0e21e |
182 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e |
183 | len = (VTBL->svt_len)(sv, mg); |
c07a80fd |
184 | LEAVE; |
85e6fe83 |
185 | return len; |
186 | } |
187 | } |
188 | |
748a9306 |
189 | junk = SvPV(sv, len); |
463ee0b2 |
190 | return len; |
79072805 |
191 | } |
192 | |
193 | int |
8ac85365 |
194 | mg_clear(SV *sv) |
79072805 |
195 | { |
48e43a1c |
196 | MGS mgs; |
79072805 |
197 | MAGIC* mg; |
463ee0b2 |
198 | |
c07a80fd |
199 | ENTER; |
48e43a1c |
200 | save_magic(&mgs, sv); |
463ee0b2 |
201 | |
79072805 |
202 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
203 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
204 | /* omit GSKIP -- never set here */ |
205 | |
76e3520e |
206 | if (vtbl && (vtbl->svt_clear != NULL)) |
207 | (VTBL->svt_clear)(sv, mg); |
79072805 |
208 | } |
463ee0b2 |
209 | |
c07a80fd |
210 | LEAVE; |
79072805 |
211 | return 0; |
212 | } |
213 | |
93a17b20 |
214 | MAGIC* |
8ac85365 |
215 | mg_find(SV *sv, int type) |
93a17b20 |
216 | { |
217 | MAGIC* mg; |
93a17b20 |
218 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
219 | if (mg->mg_type == type) |
220 | return mg; |
221 | } |
222 | return 0; |
223 | } |
224 | |
79072805 |
225 | int |
8ac85365 |
226 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 |
227 | { |
463ee0b2 |
228 | int count = 0; |
79072805 |
229 | MAGIC* mg; |
463ee0b2 |
230 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
231 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
232 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
233 | count++; |
79072805 |
234 | } |
79072805 |
235 | } |
463ee0b2 |
236 | return count; |
79072805 |
237 | } |
238 | |
239 | int |
8ac85365 |
240 | mg_free(SV *sv) |
79072805 |
241 | { |
242 | MAGIC* mg; |
243 | MAGIC* moremagic; |
244 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
245 | MGVTBL* vtbl = mg->mg_virtual; |
246 | moremagic = mg->mg_moremagic; |
76e3520e |
247 | if (vtbl && (vtbl->svt_free != NULL)) |
248 | (VTBL->svt_free)(sv, mg); |
93a17b20 |
249 | if (mg->mg_ptr && mg->mg_type != 'g') |
76e3520e |
250 | if (mg->mg_length >= 0) |
88e89b8a |
251 | Safefree(mg->mg_ptr); |
76e3520e |
252 | else if (mg->mg_length == HEf_SVKEY) |
88e89b8a |
253 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
254 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
255 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
256 | Safefree(mg); |
257 | } |
258 | SvMAGIC(sv) = 0; |
259 | return 0; |
260 | } |
261 | |
262 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
263 | #include <signal.h> |
264 | #endif |
265 | |
93a17b20 |
266 | U32 |
8ac85365 |
267 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 |
268 | { |
a863c7d1 |
269 | dTHR; |
93a17b20 |
270 | register I32 paren; |
271 | register char *s; |
272 | register I32 i; |
bbce6d69 |
273 | register REGEXP *rx; |
748a9306 |
274 | char *t; |
93a17b20 |
275 | |
276 | switch (*mg->mg_ptr) { |
277 | case '1': case '2': case '3': case '4': |
278 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
279 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 |
280 | paren = atoi(mg->mg_ptr); |
281 | getparen: |
bbce6d69 |
282 | if (paren <= rx->nparens && |
283 | (s = rx->startp[paren]) && |
284 | (t = rx->endp[paren])) |
285 | { |
748a9306 |
286 | i = t - s; |
71be2cbc |
287 | if (i >= 0) |
93a17b20 |
288 | return i; |
93a17b20 |
289 | } |
93a17b20 |
290 | } |
748a9306 |
291 | return 0; |
93a17b20 |
292 | case '+': |
bbce6d69 |
293 | if (curpm && (rx = curpm->op_pmregexp)) { |
294 | paren = rx->lastparen; |
13f57bf8 |
295 | if (paren) |
296 | goto getparen; |
93a17b20 |
297 | } |
748a9306 |
298 | return 0; |
93a17b20 |
299 | case '`': |
bbce6d69 |
300 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
301 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
302 | i = rx->startp[0] - s; |
71be2cbc |
303 | if (i >= 0) |
93a17b20 |
304 | return i; |
93a17b20 |
305 | } |
93a17b20 |
306 | } |
748a9306 |
307 | return 0; |
93a17b20 |
308 | case '\'': |
bbce6d69 |
309 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
310 | if (rx->subend && (s = rx->endp[0])) { |
311 | i = rx->subend - s; |
312 | if (i >= 0) |
5cd24f17 |
313 | return i; |
93a17b20 |
314 | } |
93a17b20 |
315 | } |
748a9306 |
316 | return 0; |
93a17b20 |
317 | case ',': |
318 | return (STRLEN)ofslen; |
319 | case '\\': |
320 | return (STRLEN)orslen; |
321 | } |
322 | magic_get(sv,mg); |
323 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
324 | sv_2pv(sv, &na); |
93a17b20 |
325 | if (SvPOK(sv)) |
326 | return SvCUR(sv); |
327 | return 0; |
328 | } |
329 | |
79072805 |
330 | int |
8ac85365 |
331 | magic_get(SV *sv, MAGIC *mg) |
79072805 |
332 | { |
a863c7d1 |
333 | dTHR; |
79072805 |
334 | register I32 paren; |
335 | register char *s; |
336 | register I32 i; |
bbce6d69 |
337 | register REGEXP *rx; |
748a9306 |
338 | char *t; |
79072805 |
339 | |
340 | switch (*mg->mg_ptr) { |
748a9306 |
341 | case '\001': /* ^A */ |
342 | sv_setsv(sv, bodytarget); |
343 | break; |
79072805 |
344 | case '\004': /* ^D */ |
188ea221 |
345 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 |
346 | break; |
28f23441 |
347 | case '\005': /* ^E */ |
348 | #ifdef VMS |
349 | { |
350 | # include <descrip.h> |
351 | # include <starlet.h> |
352 | char msg[255]; |
353 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
354 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
355 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
356 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
357 | else |
358 | sv_setpv(sv,""); |
359 | } |
360 | #else |
88e89b8a |
361 | #ifdef OS2 |
fb73857a |
362 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
363 | sv_setnv(sv, (double)errno); |
364 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
365 | } else { |
366 | if (errno != errno_isOS2) |
367 | Perl_rc = _syserrno(); |
368 | sv_setnv(sv, (double)Perl_rc); |
369 | sv_setpv(sv, os2error(Perl_rc)); |
370 | } |
88e89b8a |
371 | #else |
22fae026 |
372 | #ifdef WIN32 |
373 | { |
374 | DWORD dwErr = GetLastError(); |
375 | sv_setnv(sv, (double)dwErr); |
376 | if (dwErr) |
76e3520e |
377 | { |
378 | #ifdef PERL_OBJECT |
379 | char *sMsg; |
380 | DWORD dwLen; |
381 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); |
382 | sv_setpvn(sv, sMsg, dwLen); |
383 | PerlProc_FreeBuf(sMsg); |
384 | #else |
22fae026 |
385 | win32_str_os_error(sv, dwErr); |
76e3520e |
386 | #endif |
387 | } |
22fae026 |
388 | else |
389 | sv_setpv(sv, ""); |
390 | SetLastError(dwErr); |
391 | } |
392 | #else |
946ec16e |
393 | sv_setnv(sv, (double)errno); |
28f23441 |
394 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
395 | #endif |
88e89b8a |
396 | #endif |
22fae026 |
397 | #endif |
946ec16e |
398 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
399 | break; |
79072805 |
400 | case '\006': /* ^F */ |
188ea221 |
401 | sv_setiv(sv, (IV)maxsysfd); |
79072805 |
402 | break; |
a0d0e21e |
403 | case '\010': /* ^H */ |
188ea221 |
404 | sv_setiv(sv, (IV)hints); |
a0d0e21e |
405 | break; |
79072805 |
406 | case '\t': /* ^I */ |
407 | if (inplace) |
408 | sv_setpv(sv, inplace); |
409 | else |
188ea221 |
410 | sv_setsv(sv, &sv_undef); |
79072805 |
411 | break; |
28f23441 |
412 | case '\017': /* ^O */ |
188ea221 |
413 | sv_setpv(sv, osname); |
28f23441 |
414 | break; |
79072805 |
415 | case '\020': /* ^P */ |
188ea221 |
416 | sv_setiv(sv, (IV)perldb); |
79072805 |
417 | break; |
fb73857a |
418 | case '\023': /* ^S */ |
d58bf5aa |
419 | { |
420 | dTHR; |
421 | if (lex_state != LEX_NOTPARSING) |
422 | SvOK_off(sv); |
423 | else if (in_eval) |
424 | sv_setiv(sv, 1); |
425 | else |
426 | sv_setiv(sv, 0); |
427 | } |
fb73857a |
428 | break; |
79072805 |
429 | case '\024': /* ^T */ |
88e89b8a |
430 | #ifdef BIG_TIME |
188ea221 |
431 | sv_setnv(sv, basetime); |
88e89b8a |
432 | #else |
188ea221 |
433 | sv_setiv(sv, (IV)basetime); |
88e89b8a |
434 | #endif |
79072805 |
435 | break; |
436 | case '\027': /* ^W */ |
188ea221 |
437 | sv_setiv(sv, (IV)dowarn); |
79072805 |
438 | break; |
439 | case '1': case '2': case '3': case '4': |
440 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
441 | if (curpm && (rx = curpm->op_pmregexp)) { |
a863c7d1 |
442 | /* |
443 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
444 | * XXX Does the new way break anything? |
445 | */ |
446 | paren = atoi(mg->mg_ptr); |
79072805 |
447 | getparen: |
bbce6d69 |
448 | if (paren <= rx->nparens && |
449 | (s = rx->startp[paren]) && |
450 | (t = rx->endp[paren])) |
451 | { |
748a9306 |
452 | i = t - s; |
13f57bf8 |
453 | getrx: |
748a9306 |
454 | if (i >= 0) { |
13f57bf8 |
455 | bool was_tainted; |
456 | if (tainting) { |
457 | was_tainted = tainted; |
458 | tainted = FALSE; |
459 | } |
79072805 |
460 | sv_setpvn(sv,s,i); |
13f57bf8 |
461 | if (tainting) |
c277df42 |
462 | tainted = was_tainted || RX_MATCH_TAINTED(rx); |
748a9306 |
463 | break; |
464 | } |
79072805 |
465 | } |
79072805 |
466 | } |
748a9306 |
467 | sv_setsv(sv,&sv_undef); |
79072805 |
468 | break; |
469 | case '+': |
bbce6d69 |
470 | if (curpm && (rx = curpm->op_pmregexp)) { |
471 | paren = rx->lastparen; |
a0d0e21e |
472 | if (paren) |
473 | goto getparen; |
79072805 |
474 | } |
748a9306 |
475 | sv_setsv(sv,&sv_undef); |
79072805 |
476 | break; |
477 | case '`': |
bbce6d69 |
478 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
479 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
480 | i = rx->startp[0] - s; |
13f57bf8 |
481 | goto getrx; |
79072805 |
482 | } |
79072805 |
483 | } |
748a9306 |
484 | sv_setsv(sv,&sv_undef); |
79072805 |
485 | break; |
486 | case '\'': |
bbce6d69 |
487 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
488 | if (rx->subend && (s = rx->endp[0])) { |
489 | i = rx->subend - s; |
490 | goto getrx; |
79072805 |
491 | } |
79072805 |
492 | } |
748a9306 |
493 | sv_setsv(sv,&sv_undef); |
79072805 |
494 | break; |
495 | case '.': |
496 | #ifndef lint |
a0d0e21e |
497 | if (GvIO(last_in_gv)) { |
188ea221 |
498 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 |
499 | } |
500 | #endif |
501 | break; |
502 | case '?': |
809a5acc |
503 | { |
504 | dTHR; |
505 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
506 | #ifdef COMPLEX_STATUS |
809a5acc |
507 | LvTARGOFF(sv) = statusvalue; |
508 | LvTARGLEN(sv) = statusvalue_vms; |
ff0cee69 |
509 | #endif |
809a5acc |
510 | } |
79072805 |
511 | break; |
512 | case '^': |
a0d0e21e |
513 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
514 | if (s) |
515 | sv_setpv(sv,s); |
516 | else { |
517 | sv_setpv(sv,GvENAME(defoutgv)); |
518 | sv_catpv(sv,"_TOP"); |
519 | } |
520 | break; |
521 | case '~': |
a0d0e21e |
522 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
523 | if (!s) |
524 | s = GvENAME(defoutgv); |
525 | sv_setpv(sv,s); |
526 | break; |
527 | #ifndef lint |
528 | case '=': |
188ea221 |
529 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
530 | break; |
531 | case '-': |
188ea221 |
532 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
533 | break; |
534 | case '%': |
188ea221 |
535 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 |
536 | break; |
537 | #endif |
538 | case ':': |
539 | break; |
540 | case '/': |
541 | break; |
542 | case '[': |
0f15f207 |
543 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 |
544 | break; |
545 | case '|': |
188ea221 |
546 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
547 | break; |
548 | case ',': |
549 | sv_setpvn(sv,ofs,ofslen); |
550 | break; |
551 | case '\\': |
552 | sv_setpvn(sv,ors,orslen); |
553 | break; |
554 | case '#': |
555 | sv_setpv(sv,ofmt); |
556 | break; |
557 | case '!': |
a5f75d66 |
558 | #ifdef VMS |
946ec16e |
559 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
560 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
561 | #else |
88e89b8a |
562 | { |
563 | int saveerrno = errno; |
946ec16e |
564 | sv_setnv(sv, (double)errno); |
88e89b8a |
565 | #ifdef OS2 |
566 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
567 | else |
a5f75d66 |
568 | #endif |
2304df62 |
569 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
570 | errno = saveerrno; |
571 | } |
572 | #endif |
946ec16e |
573 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
574 | break; |
575 | case '<': |
188ea221 |
576 | sv_setiv(sv, (IV)uid); |
79072805 |
577 | break; |
578 | case '>': |
188ea221 |
579 | sv_setiv(sv, (IV)euid); |
79072805 |
580 | break; |
581 | case '(': |
188ea221 |
582 | sv_setiv(sv, (IV)gid); |
fc36a67e |
583 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 |
584 | goto add_groups; |
585 | case ')': |
188ea221 |
586 | sv_setiv(sv, (IV)egid); |
fc36a67e |
587 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 |
588 | add_groups: |
79072805 |
589 | #ifdef HAS_GETGROUPS |
79072805 |
590 | { |
a0d0e21e |
591 | Groups_t gary[NGROUPS]; |
79072805 |
592 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
593 | while (--i >= 0) |
fc36a67e |
594 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
595 | } |
596 | #endif |
29355cf7 |
597 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
598 | break; |
599 | case '*': |
600 | break; |
601 | case '0': |
602 | break; |
a863c7d1 |
603 | #ifdef USE_THREADS |
604 | case '@': |
38a03e6e |
605 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
606 | break; |
607 | #endif /* USE_THREADS */ |
79072805 |
608 | } |
a0d0e21e |
609 | return 0; |
79072805 |
610 | } |
611 | |
612 | int |
8ac85365 |
613 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 |
614 | { |
615 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
616 | |
617 | if (uf && uf->uf_val) |
618 | (*uf->uf_val)(uf->uf_index, sv); |
619 | return 0; |
620 | } |
621 | |
622 | int |
8ac85365 |
623 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 |
624 | { |
625 | register char *s; |
88e89b8a |
626 | char *ptr; |
5aabfad6 |
627 | STRLEN len, klen; |
a0d0e21e |
628 | I32 i; |
1e422769 |
629 | |
a0d0e21e |
630 | s = SvPV(sv,len); |
5aabfad6 |
631 | ptr = MgPV(mg,klen); |
88e89b8a |
632 | my_setenv(ptr, s); |
1e422769 |
633 | |
a0d0e21e |
634 | #ifdef DYNAMIC_ENV_FETCH |
635 | /* We just undefd an environment var. Is a replacement */ |
636 | /* waiting in the wings? */ |
637 | if (!len) { |
5aabfad6 |
638 | SV **valp; |
639 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) |
640 | s = SvPV(*valp, len); |
a0d0e21e |
641 | } |
642 | #endif |
1e422769 |
643 | |
39e571d4 |
644 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
645 | /* And you'll never guess what the dog had */ |
646 | /* in its mouth... */ |
463ee0b2 |
647 | if (tainting) { |
1e422769 |
648 | MgTAINTEDDIR_off(mg); |
649 | #ifdef VMS |
5aabfad6 |
650 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
651 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
652 | struct stat sbuf; |
653 | int i = 0, j = 0; |
654 | |
655 | do { /* DCL$PATH may be a search list */ |
656 | while (1) { /* as may dev portion of any element */ |
657 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
658 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
659 | cando_by_name(S_IWUSR,0,elt) ) { |
660 | MgTAINTEDDIR_on(mg); |
661 | return 0; |
662 | } |
663 | } |
664 | if ((cp = strchr(elt, ':')) != Nullch) |
665 | *cp = '\0'; |
666 | if (my_trnlnm(elt, eltbuf, j++)) |
667 | elt = eltbuf; |
668 | else |
669 | break; |
670 | } |
671 | j = 0; |
672 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
673 | } |
674 | #endif /* VMS */ |
5aabfad6 |
675 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
676 | char *strend = s + len; |
463ee0b2 |
677 | |
678 | while (s < strend) { |
96827780 |
679 | char tmpbuf[256]; |
1e422769 |
680 | struct stat st; |
96827780 |
681 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
682 | s, strend, ':', &i); |
463ee0b2 |
683 | s++; |
96827780 |
684 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
685 | || *tmpbuf != '/' |
686 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
687 | MgTAINTEDDIR_on(mg); |
1e422769 |
688 | return 0; |
689 | } |
463ee0b2 |
690 | } |
79072805 |
691 | } |
692 | } |
39e571d4 |
693 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
694 | |
79072805 |
695 | return 0; |
696 | } |
697 | |
698 | int |
8ac85365 |
699 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 |
700 | { |
5aabfad6 |
701 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 |
702 | return 0; |
703 | } |
704 | |
88e89b8a |
705 | int |
8ac85365 |
706 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a |
707 | { |
708 | #if defined(VMS) |
709 | die("Can't make list assignment to %%ENV on this system"); |
710 | #else |
d58bf5aa |
711 | dTHR; |
fb73857a |
712 | if (localizing) { |
713 | HE* entry; |
714 | magic_clear_all_env(sv,mg); |
715 | hv_iterinit((HV*)sv); |
716 | while (entry = hv_iternext((HV*)sv)) { |
717 | I32 keylen; |
718 | my_setenv(hv_iterkey(entry, &keylen), |
719 | SvPV(hv_iterval((HV*)sv, entry), na)); |
720 | } |
721 | } |
722 | #endif |
723 | return 0; |
724 | } |
725 | |
726 | int |
8ac85365 |
727 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 |
728 | { |
3e3baf6d |
729 | #if defined(VMS) |
730 | die("Can't make list assignment to %%ENV on this system"); |
731 | #else |
732 | #ifdef WIN32 |
733 | char *envv = GetEnvironmentStrings(); |
734 | char *cur = envv; |
735 | STRLEN len; |
736 | while (*cur) { |
737 | char *end = strchr(cur,'='); |
738 | if (end && end != cur) { |
739 | *end = '\0'; |
740 | my_setenv(cur,Nullch); |
741 | *end = '='; |
742 | cur += strlen(end+1)+1; |
743 | } |
744 | else if ((len = strlen(cur))) |
745 | cur += len+1; |
746 | } |
747 | FreeEnvironmentStrings(envv); |
66b1d557 |
748 | #else |
749 | I32 i; |
750 | |
751 | if (environ == origenviron) |
752 | New(901, environ, 1, char*); |
753 | else |
754 | for (i = 0; environ[i]; i++) |
755 | Safefree(environ[i]); |
756 | environ[0] = Nullch; |
757 | |
66b1d557 |
758 | #endif |
3e3baf6d |
759 | #endif |
760 | return 0; |
66b1d557 |
761 | } |
762 | |
763 | int |
8ac85365 |
764 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a |
765 | { |
766 | I32 i; |
767 | /* Are we fetching a signal entry? */ |
5aabfad6 |
768 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
769 | if (i) { |
770 | if(psig_ptr[i]) |
771 | sv_setsv(sv,psig_ptr[i]); |
772 | else { |
ff68c719 |
773 | Sighandler_t sigstate = rsignal_state(i); |
774 | |
88e89b8a |
775 | /* cache state so we don't fetch it again */ |
ff68c719 |
776 | if(sigstate == SIG_IGN) |
88e89b8a |
777 | sv_setpv(sv,"IGNORE"); |
778 | else |
779 | sv_setsv(sv,&sv_undef); |
780 | psig_ptr[i] = SvREFCNT_inc(sv); |
781 | SvTEMP_off(sv); |
782 | } |
783 | } |
784 | return 0; |
785 | } |
786 | int |
8ac85365 |
787 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a |
788 | { |
789 | I32 i; |
790 | /* Are we clearing a signal entry? */ |
5aabfad6 |
791 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
792 | if (i) { |
793 | if(psig_ptr[i]) { |
794 | SvREFCNT_dec(psig_ptr[i]); |
795 | psig_ptr[i]=0; |
796 | } |
797 | if(psig_name[i]) { |
798 | SvREFCNT_dec(psig_name[i]); |
799 | psig_name[i]=0; |
800 | } |
801 | } |
802 | return 0; |
803 | } |
3d37d572 |
804 | |
85e6fe83 |
805 | int |
8ac85365 |
806 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 |
807 | { |
11343788 |
808 | dTHR; |
79072805 |
809 | register char *s; |
810 | I32 i; |
748a9306 |
811 | SV** svp; |
a0d0e21e |
812 | |
5aabfad6 |
813 | s = MgPV(mg,na); |
748a9306 |
814 | if (*s == '_') { |
815 | if (strEQ(s,"__DIE__")) |
816 | svp = &diehook; |
817 | else if (strEQ(s,"__WARN__")) |
818 | svp = &warnhook; |
819 | else if (strEQ(s,"__PARSE__")) |
820 | svp = &parsehook; |
821 | else |
822 | croak("No such hook: %s", s); |
823 | i = 0; |
4633a7c4 |
824 | if (*svp) { |
825 | SvREFCNT_dec(*svp); |
826 | *svp = 0; |
827 | } |
748a9306 |
828 | } |
829 | else { |
830 | i = whichsig(s); /* ...no, a brick */ |
831 | if (!i) { |
832 | if (dowarn || strEQ(s,"ALARM")) |
833 | warn("No such signal: SIG%s", s); |
834 | return 0; |
835 | } |
ff0cee69 |
836 | SvREFCNT_dec(psig_name[i]); |
837 | SvREFCNT_dec(psig_ptr[i]); |
88e89b8a |
838 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
839 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 |
840 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a |
841 | SvREADONLY_on(psig_name[i]); |
748a9306 |
842 | } |
a0d0e21e |
843 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
844 | if (i) |
c23142e2 |
845 | (void)rsignal(i, sighandlerp); |
748a9306 |
846 | else |
847 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
848 | return 0; |
849 | } |
850 | s = SvPV_force(sv,na); |
748a9306 |
851 | if (strEQ(s,"IGNORE")) { |
852 | if (i) |
ff68c719 |
853 | (void)rsignal(i, SIG_IGN); |
748a9306 |
854 | else |
855 | *svp = 0; |
856 | } |
857 | else if (strEQ(s,"DEFAULT") || !*s) { |
858 | if (i) |
ff68c719 |
859 | (void)rsignal(i, SIG_DFL); |
748a9306 |
860 | else |
861 | *svp = 0; |
862 | } |
79072805 |
863 | else { |
5aabfad6 |
864 | /* |
865 | * We should warn if HINT_STRICT_REFS, but without |
866 | * access to a known hint bit in a known OP, we can't |
867 | * tell whether HINT_STRICT_REFS is in force or not. |
868 | */ |
46fc3d4c |
869 | if (!strchr(s,':') && !strchr(s,'\'')) |
870 | sv_setpv(sv, form("main::%s", s)); |
748a9306 |
871 | if (i) |
c23142e2 |
872 | (void)rsignal(i, sighandlerp); |
748a9306 |
873 | else |
874 | *svp = SvREFCNT_inc(sv); |
79072805 |
875 | } |
876 | return 0; |
877 | } |
878 | |
879 | int |
8ac85365 |
880 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 |
881 | { |
a0231f0e |
882 | HV *stash; |
883 | SV **svp; |
884 | I32 fill; |
885 | HV *basefields = Nullhv; |
886 | GV **gvp; |
887 | GV *gv; |
888 | HE *he; |
889 | static char *FIELDS = "FIELDS"; |
890 | |
463ee0b2 |
891 | sub_generation++; |
a0231f0e |
892 | |
893 | if (mg->mg_type == 'i') |
894 | return 0; /* Ignore lower-case version of the magic */ |
895 | |
896 | stash = GvSTASH(mg->mg_obj); |
897 | svp = AvARRAY((AV*)sv); |
898 | |
899 | for (fill = AvFILL((AV*)sv); fill >= 0; fill--, svp++) { |
900 | HV *basestash = gv_stashsv(*svp, FALSE); |
901 | |
902 | if (!basestash) { |
903 | if (dowarn) |
904 | warn("No such package \"%_\" in @ISA assignment", *svp); |
905 | continue; |
906 | } |
907 | gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE); |
908 | if (gvp && *gvp && GvHV(*gvp)) { |
909 | if (basefields) |
910 | croak("Can't multiply inherit %%FIELDS"); |
911 | basefields = GvHV(*gvp); |
912 | } |
913 | } |
914 | |
915 | if (!basefields) |
916 | return 0; |
917 | |
918 | gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE); |
919 | if (!isGV(gv)) |
920 | gv_init(gv, stash, FIELDS, 6, TRUE); |
921 | if (!GvHV(gv)) |
922 | GvHV(gv) = newHV(); |
923 | if (HvKEYS(GvHV(gv))) |
924 | croak("Inherited %%FIELDS can't override existing %%FIELDS"); |
925 | |
926 | hv_iterinit(GvHV(gv)); |
927 | while ((he = hv_iternext(basefields))) |
928 | hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he)); |
929 | |
463ee0b2 |
930 | return 0; |
931 | } |
932 | |
a0d0e21e |
933 | #ifdef OVERLOAD |
934 | |
463ee0b2 |
935 | int |
8ac85365 |
936 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 |
937 | { |
a0d0e21e |
938 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
939 | amagic_generation++; |
463ee0b2 |
940 | |
a0d0e21e |
941 | return 0; |
942 | } |
943 | #endif /* OVERLOAD */ |
463ee0b2 |
944 | |
946ec16e |
945 | int |
8ac85365 |
946 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e |
947 | { |
948 | if (LvTARG(sv)) { |
949 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
950 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ |
951 | } |
952 | return 0; |
953 | } |
954 | |
76e3520e |
955 | STATIC int |
8ac85365 |
956 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
957 | { |
958 | dSP; |
463ee0b2 |
959 | |
a0d0e21e |
960 | ENTER; |
961 | SAVETMPS; |
962 | PUSHMARK(sp); |
963 | EXTEND(sp, 2); |
964 | PUSHs(mg->mg_obj); |
88e89b8a |
965 | if (mg->mg_ptr) { |
76e3520e |
966 | if (mg->mg_length >= 0) |
967 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_length))); |
968 | else if (mg->mg_length == HEf_SVKEY) |
88e89b8a |
969 | PUSHs((SV*)mg->mg_ptr); |
970 | } |
a0d0e21e |
971 | else if (mg->mg_type == 'p') |
76e3520e |
972 | PUSHs(sv_2mortal(newSViv(mg->mg_length))); |
463ee0b2 |
973 | PUTBACK; |
974 | |
a0d0e21e |
975 | if (perl_call_method(meth, G_SCALAR)) |
976 | sv_setsv(sv, *stack_sp--); |
463ee0b2 |
977 | |
a0d0e21e |
978 | FREETMPS; |
979 | LEAVE; |
980 | return 0; |
981 | } |
463ee0b2 |
982 | |
a0d0e21e |
983 | int |
8ac85365 |
984 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e |
985 | { |
986 | magic_methpack(sv,mg,"FETCH"); |
987 | if (mg->mg_ptr) |
988 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
989 | return 0; |
990 | } |
991 | |
992 | int |
8ac85365 |
993 | magic_setpack(SV *sv, MAGIC *mg) |
463ee0b2 |
994 | { |
463ee0b2 |
995 | dSP; |
463ee0b2 |
996 | |
a0d0e21e |
997 | PUSHMARK(sp); |
998 | EXTEND(sp, 3); |
999 | PUSHs(mg->mg_obj); |
88e89b8a |
1000 | if (mg->mg_ptr) { |
76e3520e |
1001 | if (mg->mg_length >= 0) |
1002 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_length))); |
1003 | else if (mg->mg_length == HEf_SVKEY) |
88e89b8a |
1004 | PUSHs((SV*)mg->mg_ptr); |
1005 | } |
a0d0e21e |
1006 | else if (mg->mg_type == 'p') |
76e3520e |
1007 | PUSHs(sv_2mortal(newSViv(mg->mg_length))); |
463ee0b2 |
1008 | PUSHs(sv); |
1009 | PUTBACK; |
1010 | |
a0d0e21e |
1011 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 |
1012 | |
1013 | return 0; |
1014 | } |
1015 | |
1016 | int |
8ac85365 |
1017 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 |
1018 | { |
a0d0e21e |
1019 | return magic_methpack(sv,mg,"DELETE"); |
1020 | } |
463ee0b2 |
1021 | |
8ac85365 |
1022 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e |
1023 | { |
1024 | dSP; |
463ee0b2 |
1025 | |
a0d0e21e |
1026 | PUSHMARK(sp); |
1027 | XPUSHs(mg->mg_obj); |
463ee0b2 |
1028 | PUTBACK; |
463ee0b2 |
1029 | |
a0d0e21e |
1030 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 |
1031 | |
1032 | return 0; |
1033 | } |
1034 | |
1035 | int |
8ac85365 |
1036 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1037 | { |
463ee0b2 |
1038 | dSP; |
a0d0e21e |
1039 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1040 | |
1041 | ENTER; |
a0d0e21e |
1042 | SAVETMPS; |
1043 | PUSHMARK(sp); |
1044 | EXTEND(sp, 2); |
1045 | PUSHs(mg->mg_obj); |
463ee0b2 |
1046 | if (SvOK(key)) |
1047 | PUSHs(key); |
1048 | PUTBACK; |
1049 | |
a0d0e21e |
1050 | if (perl_call_method(meth, G_SCALAR)) |
1051 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
1052 | |
a0d0e21e |
1053 | FREETMPS; |
1054 | LEAVE; |
79072805 |
1055 | return 0; |
1056 | } |
1057 | |
1058 | int |
8ac85365 |
1059 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e |
1060 | { |
1061 | return magic_methpack(sv,mg,"EXISTS"); |
1062 | } |
1063 | |
1064 | int |
8ac85365 |
1065 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 |
1066 | { |
11343788 |
1067 | dTHR; |
79072805 |
1068 | OP *o; |
1069 | I32 i; |
1070 | GV* gv; |
1071 | SV** svp; |
1072 | |
1073 | gv = DBline; |
1074 | i = SvTRUE(sv); |
188ea221 |
1075 | svp = av_fetch(GvAV(gv), |
5aabfad6 |
1076 | atoi(MgPV(mg,na)), FALSE); |
8990e307 |
1077 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
1078 | o->op_private = i; |
79072805 |
1079 | else |
1080 | warn("Can't break at that line\n"); |
1081 | return 0; |
1082 | } |
1083 | |
1084 | int |
8ac85365 |
1085 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 |
1086 | { |
0f15f207 |
1087 | dTHR; |
a0d0e21e |
1088 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
1089 | return 0; |
1090 | } |
1091 | |
1092 | int |
8ac85365 |
1093 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 |
1094 | { |
0f15f207 |
1095 | dTHR; |
a0d0e21e |
1096 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1097 | return 0; |
1098 | } |
1099 | |
1100 | int |
8ac85365 |
1101 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1102 | { |
1103 | SV* lsv = LvTARG(sv); |
1104 | |
1105 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1106 | mg = mg_find(lsv, 'g'); |
76e3520e |
1107 | if (mg && mg->mg_length >= 0) { |
0f15f207 |
1108 | dTHR; |
76e3520e |
1109 | sv_setiv(sv, mg->mg_length + curcop->cop_arybase); |
a0d0e21e |
1110 | return 0; |
1111 | } |
1112 | } |
1113 | (void)SvOK_off(sv); |
1114 | return 0; |
1115 | } |
1116 | |
1117 | int |
8ac85365 |
1118 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1119 | { |
1120 | SV* lsv = LvTARG(sv); |
1121 | SSize_t pos; |
1122 | STRLEN len; |
1123 | |
1124 | mg = 0; |
1125 | |
1126 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1127 | mg = mg_find(lsv, 'g'); |
1128 | if (!mg) { |
1129 | if (!SvOK(sv)) |
1130 | return 0; |
1131 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1132 | mg = mg_find(lsv, 'g'); |
1133 | } |
1134 | else if (!SvOK(sv)) { |
76e3520e |
1135 | mg->mg_length = -1; |
a0d0e21e |
1136 | return 0; |
1137 | } |
1138 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1139 | |
0f15f207 |
1140 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e |
1141 | if (pos < 0) { |
1142 | pos += len; |
1143 | if (pos < 0) |
1144 | pos = 0; |
1145 | } |
1146 | else if (pos > len) |
1147 | pos = len; |
76e3520e |
1148 | mg->mg_length = pos; |
71be2cbc |
1149 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1150 | |
79072805 |
1151 | return 0; |
1152 | } |
1153 | |
1154 | int |
8ac85365 |
1155 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 |
1156 | { |
8646b087 |
1157 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1158 | SvFAKE_off(sv); |
946ec16e |
1159 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1160 | SvFAKE_on(sv); |
1161 | } |
1162 | else |
946ec16e |
1163 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1164 | return 0; |
1165 | } |
1166 | |
1167 | int |
8ac85365 |
1168 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 |
1169 | { |
1170 | register char *s; |
1171 | GV* gv; |
1172 | |
1173 | if (!SvOK(sv)) |
1174 | return 0; |
463ee0b2 |
1175 | s = SvPV(sv, na); |
79072805 |
1176 | if (*s == '*' && s[1]) |
1177 | s++; |
85e6fe83 |
1178 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1179 | if (sv == (SV*)gv) |
1180 | return 0; |
1181 | if (GvGP(sv)) |
88e89b8a |
1182 | gp_free((GV*)sv); |
79072805 |
1183 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1184 | return 0; |
1185 | } |
1186 | |
1187 | int |
8ac85365 |
1188 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 |
1189 | { |
8990e307 |
1190 | STRLEN len; |
1191 | char *tmps = SvPV(sv,len); |
1192 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1193 | return 0; |
1194 | } |
1195 | |
1196 | int |
8ac85365 |
1197 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1198 | { |
a863c7d1 |
1199 | dTHR; |
76e3520e |
1200 | TAINT_IF((mg->mg_length & 1) || |
1201 | (mg->mg_length & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1202 | return 0; |
1203 | } |
1204 | |
1205 | int |
8ac85365 |
1206 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1207 | { |
11343788 |
1208 | dTHR; |
748a9306 |
1209 | if (localizing) { |
1210 | if (localizing == 1) |
76e3520e |
1211 | mg->mg_length <<= 1; |
748a9306 |
1212 | else |
76e3520e |
1213 | mg->mg_length >>= 1; |
a0d0e21e |
1214 | } |
748a9306 |
1215 | else if (tainted) |
76e3520e |
1216 | mg->mg_length |= 1; |
748a9306 |
1217 | else |
76e3520e |
1218 | mg->mg_length &= ~1; |
463ee0b2 |
1219 | return 0; |
1220 | } |
1221 | |
1222 | int |
8ac85365 |
1223 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 |
1224 | { |
1225 | do_vecset(sv); /* XXX slurp this routine */ |
1226 | return 0; |
1227 | } |
1228 | |
1229 | int |
8ac85365 |
1230 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1231 | { |
71be2cbc |
1232 | SV *targ = Nullsv; |
5f05dabc |
1233 | if (LvTARGLEN(sv)) { |
68dc0745 |
1234 | if (mg->mg_obj) { |
1235 | HV* hv = (HV*)LvTARG(sv); |
1236 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); |
1237 | if (he) |
1238 | targ = HeVAL(he); |
1239 | } |
1240 | else { |
1241 | AV* av = (AV*)LvTARG(sv); |
1242 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1243 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1244 | } |
1245 | if (targ && targ != &sv_undef) { |
e858de61 |
1246 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1247 | /* somebody else defined it for us */ |
1248 | SvREFCNT_dec(LvTARG(sv)); |
1249 | LvTARG(sv) = SvREFCNT_inc(targ); |
1250 | LvTARGLEN(sv) = 0; |
1251 | SvREFCNT_dec(mg->mg_obj); |
1252 | mg->mg_obj = Nullsv; |
1253 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1254 | } |
5f05dabc |
1255 | } |
71be2cbc |
1256 | else |
1257 | targ = LvTARG(sv); |
1258 | sv_setsv(sv, targ ? targ : &sv_undef); |
1259 | return 0; |
1260 | } |
1261 | |
1262 | int |
8ac85365 |
1263 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc |
1264 | { |
1265 | if (LvTARGLEN(sv)) |
68dc0745 |
1266 | vivify_defelem(sv); |
1267 | if (LvTARG(sv)) { |
5f05dabc |
1268 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1269 | SvSETMAGIC(LvTARG(sv)); |
1270 | } |
5f05dabc |
1271 | return 0; |
1272 | } |
1273 | |
1274 | int |
8ac85365 |
1275 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1276 | { |
1277 | SvREFCNT_dec(LvTARG(sv)); |
71be2cbc |
1278 | return 0; |
1279 | } |
1280 | |
1281 | void |
8ac85365 |
1282 | vivify_defelem(SV *sv) |
71be2cbc |
1283 | { |
e858de61 |
1284 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 |
1285 | MAGIC* mg; |
1286 | SV* value; |
71be2cbc |
1287 | |
68dc0745 |
1288 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1289 | return; |
68dc0745 |
1290 | if (mg->mg_obj) { |
1291 | HV* hv = (HV*)LvTARG(sv); |
1292 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); |
1293 | if (!he || (value = HeVAL(he)) == &sv_undef) |
1294 | croak(no_helem, SvPV(mg->mg_obj, na)); |
71be2cbc |
1295 | } |
68dc0745 |
1296 | else { |
1297 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1298 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1299 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1300 | else { |
1301 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
1302 | if (!svp || (value = *svp) == &sv_undef) |
1303 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1304 | } |
1305 | } |
3e3baf6d |
1306 | (void)SvREFCNT_inc(value); |
68dc0745 |
1307 | SvREFCNT_dec(LvTARG(sv)); |
1308 | LvTARG(sv) = value; |
71be2cbc |
1309 | LvTARGLEN(sv) = 0; |
68dc0745 |
1310 | SvREFCNT_dec(mg->mg_obj); |
1311 | mg->mg_obj = Nullsv; |
1312 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1313 | } |
1314 | |
1315 | int |
8ac85365 |
1316 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 |
1317 | { |
76e3520e |
1318 | mg->mg_length = -1; |
c6496cc7 |
1319 | SvSCREAM_off(sv); |
93a17b20 |
1320 | return 0; |
1321 | } |
1322 | |
1323 | int |
8ac85365 |
1324 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 |
1325 | { |
463ee0b2 |
1326 | sv_unmagic(sv, 'B'); |
79072805 |
1327 | SvVALID_off(sv); |
1328 | return 0; |
1329 | } |
1330 | |
1331 | int |
8ac85365 |
1332 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff |
1333 | { |
1334 | sv_unmagic(sv, 'f'); |
1335 | SvCOMPILED_off(sv); |
1336 | return 0; |
1337 | } |
1338 | |
1339 | int |
8ac85365 |
1340 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 |
1341 | { |
1342 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1343 | |
1344 | if (uf && uf->uf_set) |
1345 | (*uf->uf_set)(uf->uf_index, sv); |
1346 | return 0; |
1347 | } |
1348 | |
c277df42 |
1349 | int |
1350 | magic_freeregexp(SV *sv, MAGIC *mg) |
1351 | { |
1352 | regexp *re = (regexp *)mg->mg_obj; |
1353 | ReREFCNT_dec(re); |
1354 | return 0; |
1355 | } |
1356 | |
7a4c00b4 |
1357 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1358 | int |
8ac85365 |
1359 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 |
1360 | { |
1361 | /* |
1362 | * René Descartes said "I think not." |
1363 | * and vanished with a faint plop. |
1364 | */ |
7a4c00b4 |
1365 | if (mg->mg_ptr) { |
1366 | Safefree(mg->mg_ptr); |
1367 | mg->mg_ptr = NULL; |
76e3520e |
1368 | mg->mg_length = -1; |
7a4c00b4 |
1369 | } |
bbce6d69 |
1370 | return 0; |
1371 | } |
7a4c00b4 |
1372 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1373 | |
1374 | int |
8ac85365 |
1375 | magic_set(SV *sv, MAGIC *mg) |
79072805 |
1376 | { |
11343788 |
1377 | dTHR; |
79072805 |
1378 | register char *s; |
1379 | I32 i; |
8990e307 |
1380 | STRLEN len; |
79072805 |
1381 | switch (*mg->mg_ptr) { |
748a9306 |
1382 | case '\001': /* ^A */ |
1383 | sv_setsv(bodytarget, sv); |
1384 | break; |
79072805 |
1385 | case '\004': /* ^D */ |
8990e307 |
1386 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1387 | DEBUG_x(dump_all()); |
1388 | break; |
28f23441 |
1389 | case '\005': /* ^E */ |
1390 | #ifdef VMS |
1391 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1392 | #else |
22fae026 |
1393 | #ifdef WIN32 |
1394 | SetLastError( SvIV(sv) ); |
1395 | #else |
f86702cc |
1396 | /* will anyone ever use this? */ |
1397 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1398 | #endif |
22fae026 |
1399 | #endif |
28f23441 |
1400 | break; |
79072805 |
1401 | case '\006': /* ^F */ |
463ee0b2 |
1402 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1403 | break; |
a0d0e21e |
1404 | case '\010': /* ^H */ |
1405 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1406 | break; |
79072805 |
1407 | case '\t': /* ^I */ |
1408 | if (inplace) |
1409 | Safefree(inplace); |
1410 | if (SvOK(sv)) |
a0d0e21e |
1411 | inplace = savepv(SvPV(sv,na)); |
79072805 |
1412 | else |
1413 | inplace = Nullch; |
1414 | break; |
28f23441 |
1415 | case '\017': /* ^O */ |
1416 | if (osname) |
1417 | Safefree(osname); |
1418 | if (SvOK(sv)) |
1419 | osname = savepv(SvPV(sv,na)); |
1420 | else |
1421 | osname = Nullch; |
1422 | break; |
79072805 |
1423 | case '\020': /* ^P */ |
84902520 |
1424 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1425 | break; |
1426 | case '\024': /* ^T */ |
88e89b8a |
1427 | #ifdef BIG_TIME |
1428 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
1429 | #else |
85e6fe83 |
1430 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1431 | #endif |
79072805 |
1432 | break; |
1433 | case '\027': /* ^W */ |
463ee0b2 |
1434 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1435 | break; |
1436 | case '.': |
748a9306 |
1437 | if (localizing) { |
1438 | if (localizing == 1) |
1439 | save_sptr((SV**)&last_in_gv); |
1440 | } |
88e89b8a |
1441 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e |
1442 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1443 | break; |
1444 | case '^': |
a0d0e21e |
1445 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1446 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1447 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1448 | break; |
1449 | case '~': |
a0d0e21e |
1450 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1451 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1452 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1453 | break; |
1454 | case '=': |
a0d0e21e |
1455 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1456 | break; |
1457 | case '-': |
a0d0e21e |
1458 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1459 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1460 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1461 | break; |
1462 | case '%': |
a0d0e21e |
1463 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1464 | break; |
1465 | case '|': |
4b65379b |
1466 | { |
1467 | IO *io = GvIOp(defoutgv); |
1468 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1469 | IoFLAGS(io) &= ~IOf_FLUSH; |
1470 | else { |
1471 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1472 | PerlIO *ofp = IoOFP(io); |
1473 | if (ofp) |
1474 | (void)PerlIO_flush(ofp); |
1475 | IoFLAGS(io) |= IOf_FLUSH; |
1476 | } |
1477 | } |
79072805 |
1478 | } |
1479 | break; |
1480 | case '*': |
463ee0b2 |
1481 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1482 | multiline = (i != 0); |
1483 | break; |
1484 | case '/': |
c07a80fd |
1485 | SvREFCNT_dec(nrs); |
1486 | nrs = newSVsv(sv); |
1487 | SvREFCNT_dec(rs); |
1488 | rs = SvREFCNT_inc(nrs); |
79072805 |
1489 | break; |
1490 | case '\\': |
1491 | if (ors) |
1492 | Safefree(ors); |
e3c19b7b |
1493 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1494 | ors = savepv(SvPV(sv,orslen)); |
1495 | else { |
1496 | ors = Nullch; |
1497 | orslen = 0; |
1498 | } |
79072805 |
1499 | break; |
1500 | case ',': |
1501 | if (ofs) |
1502 | Safefree(ofs); |
a0d0e21e |
1503 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1504 | break; |
1505 | case '#': |
1506 | if (ofmt) |
1507 | Safefree(ofmt); |
a0d0e21e |
1508 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1509 | break; |
1510 | case '[': |
a0d0e21e |
1511 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1512 | break; |
1513 | case '?': |
ff0cee69 |
1514 | #ifdef COMPLEX_STATUS |
1515 | if (localizing == 2) { |
1516 | statusvalue = LvTARGOFF(sv); |
1517 | statusvalue_vms = LvTARGLEN(sv); |
1518 | } |
1519 | else |
1520 | #endif |
1521 | #ifdef VMSISH_STATUS |
1522 | if (VMSISH_STATUS) |
1523 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1524 | else |
1525 | #endif |
1526 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1527 | break; |
1528 | case '!': |
f86702cc |
1529 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1530 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1531 | break; |
1532 | case '<': |
463ee0b2 |
1533 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1534 | if (delaymagic) { |
1535 | delaymagic |= DM_RUID; |
1536 | break; /* don't do magic till later */ |
1537 | } |
1538 | #ifdef HAS_SETRUID |
85e6fe83 |
1539 | (void)setruid((Uid_t)uid); |
79072805 |
1540 | #else |
1541 | #ifdef HAS_SETREUID |
85e6fe83 |
1542 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1543 | #else |
85e6fe83 |
1544 | #ifdef HAS_SETRESUID |
1545 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1546 | #else |
1547 | if (uid == euid) /* special case $< = $> */ |
76e3520e |
1548 | (void)PerlProc_setuid(uid); |
a0d0e21e |
1549 | else { |
76e3520e |
1550 | uid = (I32)PerlProc_getuid(); |
463ee0b2 |
1551 | croak("setruid() not implemented"); |
a0d0e21e |
1552 | } |
79072805 |
1553 | #endif |
1554 | #endif |
85e6fe83 |
1555 | #endif |
76e3520e |
1556 | uid = (I32)PerlProc_getuid(); |
4633a7c4 |
1557 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1558 | break; |
1559 | case '>': |
463ee0b2 |
1560 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1561 | if (delaymagic) { |
1562 | delaymagic |= DM_EUID; |
1563 | break; /* don't do magic till later */ |
1564 | } |
1565 | #ifdef HAS_SETEUID |
85e6fe83 |
1566 | (void)seteuid((Uid_t)euid); |
79072805 |
1567 | #else |
1568 | #ifdef HAS_SETREUID |
85e6fe83 |
1569 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1570 | #else |
1571 | #ifdef HAS_SETRESUID |
1572 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1573 | #else |
1574 | if (euid == uid) /* special case $> = $< */ |
76e3520e |
1575 | PerlProc_setuid(euid); |
a0d0e21e |
1576 | else { |
76e3520e |
1577 | euid = (I32)PerlProc_geteuid(); |
463ee0b2 |
1578 | croak("seteuid() not implemented"); |
a0d0e21e |
1579 | } |
79072805 |
1580 | #endif |
1581 | #endif |
85e6fe83 |
1582 | #endif |
76e3520e |
1583 | euid = (I32)PerlProc_geteuid(); |
4633a7c4 |
1584 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1585 | break; |
1586 | case '(': |
463ee0b2 |
1587 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1588 | if (delaymagic) { |
1589 | delaymagic |= DM_RGID; |
1590 | break; /* don't do magic till later */ |
1591 | } |
1592 | #ifdef HAS_SETRGID |
85e6fe83 |
1593 | (void)setrgid((Gid_t)gid); |
79072805 |
1594 | #else |
1595 | #ifdef HAS_SETREGID |
85e6fe83 |
1596 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1597 | #else |
1598 | #ifdef HAS_SETRESGID |
1599 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1600 | #else |
1601 | if (gid == egid) /* special case $( = $) */ |
76e3520e |
1602 | (void)PerlProc_setgid(gid); |
748a9306 |
1603 | else { |
76e3520e |
1604 | gid = (I32)PerlProc_getgid(); |
463ee0b2 |
1605 | croak("setrgid() not implemented"); |
748a9306 |
1606 | } |
79072805 |
1607 | #endif |
1608 | #endif |
85e6fe83 |
1609 | #endif |
76e3520e |
1610 | gid = (I32)PerlProc_getgid(); |
4633a7c4 |
1611 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1612 | break; |
1613 | case ')': |
5cd24f17 |
1614 | #ifdef HAS_SETGROUPS |
1615 | { |
1616 | char *p = SvPV(sv, na); |
1617 | Groups_t gary[NGROUPS]; |
1618 | |
1619 | SET_NUMERIC_STANDARD(); |
1620 | while (isSPACE(*p)) |
1621 | ++p; |
1622 | egid = I_V(atof(p)); |
1623 | for (i = 0; i < NGROUPS; ++i) { |
1624 | while (*p && !isSPACE(*p)) |
1625 | ++p; |
1626 | while (isSPACE(*p)) |
1627 | ++p; |
1628 | if (!*p) |
1629 | break; |
1630 | gary[i] = I_V(atof(p)); |
1631 | } |
8cc95fdb |
1632 | if (i) |
1633 | (void)setgroups(i, gary); |
5cd24f17 |
1634 | } |
1635 | #else /* HAS_SETGROUPS */ |
463ee0b2 |
1636 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1637 | #endif /* HAS_SETGROUPS */ |
79072805 |
1638 | if (delaymagic) { |
1639 | delaymagic |= DM_EGID; |
1640 | break; /* don't do magic till later */ |
1641 | } |
1642 | #ifdef HAS_SETEGID |
85e6fe83 |
1643 | (void)setegid((Gid_t)egid); |
79072805 |
1644 | #else |
1645 | #ifdef HAS_SETREGID |
85e6fe83 |
1646 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1647 | #else |
1648 | #ifdef HAS_SETRESGID |
1649 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1650 | #else |
1651 | if (egid == gid) /* special case $) = $( */ |
76e3520e |
1652 | (void)PerlProc_setgid(egid); |
748a9306 |
1653 | else { |
76e3520e |
1654 | egid = (I32)PerlProc_getegid(); |
463ee0b2 |
1655 | croak("setegid() not implemented"); |
748a9306 |
1656 | } |
79072805 |
1657 | #endif |
1658 | #endif |
85e6fe83 |
1659 | #endif |
76e3520e |
1660 | egid = (I32)PerlProc_getegid(); |
4633a7c4 |
1661 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1662 | break; |
1663 | case ':': |
a0d0e21e |
1664 | chopset = SvPV_force(sv,na); |
79072805 |
1665 | break; |
1666 | case '0': |
1667 | if (!origalen) { |
1668 | s = origargv[0]; |
1669 | s += strlen(s); |
1670 | /* See if all the arguments are contiguous in memory */ |
1671 | for (i = 1; i < origargc; i++) { |
fb73857a |
1672 | if (origargv[i] == s + 1 |
1673 | #ifdef OS2 |
1674 | || origargv[i] == s + 2 |
1675 | #endif |
1676 | ) |
79072805 |
1677 | s += strlen(++s); /* this one is ok too */ |
fb73857a |
1678 | else |
1679 | break; |
79072805 |
1680 | } |
bbce6d69 |
1681 | /* can grab env area too? */ |
fb73857a |
1682 | if (origenviron && (origenviron[0] == s + 1 |
1683 | #ifdef OS2 |
1684 | || (origenviron[0] == s + 9 && (s += 8)) |
1685 | #endif |
1686 | )) { |
66b1d557 |
1687 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
1688 | /* force copy of environment */ |
1689 | for (i = 0; origenviron[i]; i++) |
1690 | if (origenviron[i] == s + 1) |
1691 | s += strlen(++s); |
fb73857a |
1692 | else |
1693 | break; |
79072805 |
1694 | } |
1695 | origalen = s - origargv[0]; |
1696 | } |
a0d0e21e |
1697 | s = SvPV_force(sv,len); |
8990e307 |
1698 | i = len; |
79072805 |
1699 | if (i >= origalen) { |
1700 | i = origalen; |
fb73857a |
1701 | /* don't allow system to limit $0 seen by script */ |
1702 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
79072805 |
1703 | Copy(s, origargv[0], i, char); |
fb73857a |
1704 | s = origargv[0]+i; |
1705 | *s = '\0'; |
79072805 |
1706 | } |
1707 | else { |
1708 | Copy(s, origargv[0], i, char); |
1709 | s = origargv[0]+i; |
1710 | *s++ = '\0'; |
1711 | while (++i < origalen) |
8990e307 |
1712 | *s++ = ' '; |
1713 | s = origargv[0]+i; |
ed6116ce |
1714 | for (i = 1; i < origargc; i++) |
8990e307 |
1715 | origargv[i] = Nullch; |
79072805 |
1716 | } |
1717 | break; |
a863c7d1 |
1718 | #ifdef USE_THREADS |
1719 | case '@': |
38a03e6e |
1720 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
1721 | break; |
1722 | #endif /* USE_THREADS */ |
79072805 |
1723 | } |
1724 | return 0; |
1725 | } |
1726 | |
f93b4edd |
1727 | #ifdef USE_THREADS |
1728 | int |
8ac85365 |
1729 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd |
1730 | { |
1731 | dTHR; |
bc1f4c86 |
1732 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1733 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
1734 | if (MgOWNER(mg)) |
1735 | croak("panic: magic_mutexfree"); |
1736 | MUTEX_DESTROY(MgMUTEXP(mg)); |
1737 | COND_DESTROY(MgCONDP(mg)); |
e55aaa0e |
1738 | SvREFCNT_dec(sv); |
f93b4edd |
1739 | return 0; |
1740 | } |
1741 | #endif /* USE_THREADS */ |
1742 | |
79072805 |
1743 | I32 |
8ac85365 |
1744 | whichsig(char *sig) |
79072805 |
1745 | { |
1746 | register char **sigv; |
1747 | |
1748 | for (sigv = sig_name+1; *sigv; sigv++) |
1749 | if (strEQ(sig,*sigv)) |
8e07c86e |
1750 | return sig_num[sigv - sig_name]; |
79072805 |
1751 | #ifdef SIGCLD |
1752 | if (strEQ(sig,"CHLD")) |
1753 | return SIGCLD; |
1754 | #endif |
1755 | #ifdef SIGCHLD |
1756 | if (strEQ(sig,"CLD")) |
1757 | return SIGCHLD; |
1758 | #endif |
1759 | return 0; |
1760 | } |
1761 | |
84902520 |
1762 | static SV* sig_sv; |
1763 | |
76e3520e |
1764 | STATIC void |
8ac85365 |
1765 | unwind_handler_stack(void *p) |
84902520 |
1766 | { |
ff26ac79 |
1767 | dTHR; |
84902520 |
1768 | U32 flags = *(U32*)p; |
1769 | |
1770 | if (flags & 1) |
1771 | savestack_ix -= 5; /* Unprotect save in progress. */ |
1772 | /* cxstack_ix-- Not needed, die already unwound it. */ |
1773 | if (flags & 64) |
1774 | SvREFCNT_dec(sig_sv); |
1775 | } |
1776 | |
ecfc5424 |
1777 | Signal_t |
8ac85365 |
1778 | sighandler(int sig) |
79072805 |
1779 | { |
1780 | dSP; |
00d579c5 |
1781 | GV *gv = Nullgv; |
a0d0e21e |
1782 | HV *st; |
84902520 |
1783 | SV *sv, *tSv = Sv; |
00d579c5 |
1784 | CV *cv = Nullcv; |
79072805 |
1785 | AV *oldstack; |
84902520 |
1786 | OP *myop = op; |
1787 | U32 flags = 0; |
1788 | I32 o_save_i = savestack_ix, type; |
c09156bb |
1789 | PERL_CONTEXT *cx; |
84902520 |
1790 | XPV *tXpv = Xpv; |
1791 | |
1792 | if (savestack_ix + 15 <= savestack_max) |
1793 | flags |= 1; |
1794 | if (cxstack_ix < cxstack_max - 2) |
1795 | flags |= 2; |
1796 | if (markstack_ptr < markstack_max - 2) |
1797 | flags |= 4; |
1798 | if (retstack_ix < retstack_max - 2) |
1799 | flags |= 8; |
1800 | if (scopestack_ix < scopestack_max - 3) |
1801 | flags |= 16; |
1802 | |
1803 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ |
1804 | cxstack_ix++; /* Protect from overwrite. */ |
1805 | cx = &cxstack[cxstack_ix]; |
1806 | type = cx->cx_type; /* Can be during partial write. */ |
1807 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ |
1808 | } |
ff0cee69 |
1809 | if (!psig_ptr[sig]) |
1810 | die("Signal SIG%s received, but no signal handler set.\n", |
1811 | sig_name[sig]); |
1812 | |
84902520 |
1813 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1814 | infinity, so we fix 4 (in fact 5): */ |
1815 | if (flags & 1) { |
1816 | savestack_ix += 5; /* Protect save in progress. */ |
1817 | o_save_i = savestack_ix; |
76e3520e |
1818 | SAVEDESTRUCTOR(UNWINDHANDLER, (void*)&flags); |
84902520 |
1819 | } |
1820 | if (flags & 4) |
1821 | markstack_ptr++; /* Protect mark. */ |
1822 | if (flags & 8) { |
1823 | retstack_ix++; |
1824 | retstack[retstack_ix] = NULL; |
1825 | } |
1826 | if (flags & 16) |
1827 | scopestack_ix += 1; |
1828 | /* sv_2cv is too complicated, try a simpler variant first: */ |
1829 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) |
1830 | || SvTYPE(cv) != SVt_PVCV) |
1831 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
1832 | |
a0d0e21e |
1833 | if (!cv || !CvROOT(cv)) { |
79072805 |
1834 | if (dowarn) |
1835 | warn("SIG%s handler \"%s\" not defined.\n", |
00d579c5 |
1836 | sig_name[sig], (gv ? GvENAME(gv) |
1837 | : ((cv && CvGV(cv)) |
1838 | ? GvENAME(CvGV(cv)) |
1839 | : "__ANON__"))); |
1840 | goto cleanup; |
79072805 |
1841 | } |
1842 | |
88e89b8a |
1843 | oldstack = curstack; |
1844 | if (curstack != signalstack) |
a0d0e21e |
1845 | AvFILL(signalstack) = 0; |
88e89b8a |
1846 | SWITCHSTACK(curstack, signalstack); |
79072805 |
1847 | |
84902520 |
1848 | if(psig_name[sig]) { |
88e89b8a |
1849 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 |
1850 | flags |= 64; |
1851 | sig_sv = sv; |
1852 | } else { |
ff0cee69 |
1853 | sv = sv_newmortal(); |
1854 | sv_setpv(sv,sig_name[sig]); |
88e89b8a |
1855 | } |
a0d0e21e |
1856 | PUSHMARK(sp); |
79072805 |
1857 | PUSHs(sv); |
79072805 |
1858 | PUTBACK; |
a0d0e21e |
1859 | |
1860 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1861 | |
1862 | SWITCHSTACK(signalstack, oldstack); |
00d579c5 |
1863 | cleanup: |
84902520 |
1864 | if (flags & 1) |
1865 | savestack_ix -= 8; /* Unprotect save in progress. */ |
1866 | if (flags & 2) { |
1867 | cxstack[cxstack_ix].cx_type = type; |
1868 | cxstack_ix -= 1; |
1869 | } |
1870 | if (flags & 4) |
1871 | markstack_ptr--; |
1872 | if (flags & 8) |
1873 | retstack_ix--; |
1874 | if (flags & 16) |
1875 | scopestack_ix -= 1; |
1876 | if (flags & 64) |
1877 | SvREFCNT_dec(sv); |
1878 | op = myop; /* Apparently not needed... */ |
1879 | |
1880 | Sv = tSv; /* Restore global temporaries. */ |
1881 | Xpv = tXpv; |
79072805 |
1882 | return; |
1883 | } |
4e35701f |
1884 | |
1885 | |