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 |
76e3520e |
34 | |
76e3520e |
35 | #define VTBL this->*vtbl |
36 | |
37 | #else |
c07a80fd |
38 | struct magic_state { |
39 | SV* mgs_sv; |
40 | U32 mgs_flags; |
41 | }; |
42 | typedef struct magic_state MGS; |
43 | |
44 | static void restore_magic _((void *p)); |
76e3520e |
45 | #define VTBL *vtbl |
c07a80fd |
46 | |
76e3520e |
47 | #endif |
48 | |
49 | STATIC void |
8ac85365 |
50 | save_magic(MGS *mgs, SV *sv) |
c07a80fd |
51 | { |
c07a80fd |
52 | assert(SvMAGICAL(sv)); |
53 | |
c07a80fd |
54 | mgs->mgs_sv = sv; |
55 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
565764a8 |
56 | SAVEDESTRUCTOR(restore_magic, mgs); |
c07a80fd |
57 | |
58 | SvMAGICAL_off(sv); |
59 | SvREADONLY_off(sv); |
60 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
61 | } |
62 | |
76e3520e |
63 | STATIC void |
8ac85365 |
64 | restore_magic(void *p) |
c07a80fd |
65 | { |
48e43a1c |
66 | MGS* mgs = (MGS*)p; |
c07a80fd |
67 | SV* sv = mgs->mgs_sv; |
68 | |
69 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
70 | { |
71 | if (mgs->mgs_flags) |
72 | SvFLAGS(sv) |= mgs->mgs_flags; |
73 | else |
74 | mg_magical(sv); |
75 | if (SvGMAGICAL(sv)) |
76 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
77 | } |
c07a80fd |
78 | } |
79 | |
8990e307 |
80 | void |
8ac85365 |
81 | mg_magical(SV *sv) |
8990e307 |
82 | { |
83 | MAGIC* mg; |
84 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
85 | MGVTBL* vtbl = mg->mg_virtual; |
86 | if (vtbl) { |
76e3520e |
87 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
88 | SvGMAGICAL_on(sv); |
89 | if (vtbl->svt_set) |
90 | SvSMAGICAL_on(sv); |
76e3520e |
91 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 |
92 | SvRMAGICAL_on(sv); |
93 | } |
94 | } |
95 | } |
96 | |
79072805 |
97 | int |
8ac85365 |
98 | mg_get(SV *sv) |
79072805 |
99 | { |
48e43a1c |
100 | MGS mgs; |
79072805 |
101 | MAGIC* mg; |
c6496cc7 |
102 | MAGIC** mgp; |
760ac839 |
103 | int mgp_valid = 0; |
463ee0b2 |
104 | |
c07a80fd |
105 | ENTER; |
48e43a1c |
106 | save_magic(&mgs, sv); |
463ee0b2 |
107 | |
c6496cc7 |
108 | mgp = &SvMAGIC(sv); |
109 | while ((mg = *mgp) != 0) { |
79072805 |
110 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e |
111 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
112 | (VTBL->svt_get)(sv, mg); |
c6496cc7 |
113 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
114 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
115 | (mg->mg_flags & MGf_GSKIP)) |
116 | mgs.mgs_flags = 0; |
a0d0e21e |
117 | } |
c6496cc7 |
118 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
119 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
120 | mgp = &mg->mg_moremagic; |
760ac839 |
121 | mgp_valid = 1; |
122 | } |
123 | else |
124 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
125 | } |
463ee0b2 |
126 | |
c07a80fd |
127 | LEAVE; |
79072805 |
128 | return 0; |
129 | } |
130 | |
131 | int |
8ac85365 |
132 | mg_set(SV *sv) |
79072805 |
133 | { |
48e43a1c |
134 | MGS mgs; |
79072805 |
135 | MAGIC* mg; |
463ee0b2 |
136 | MAGIC* nextmg; |
137 | |
c07a80fd |
138 | ENTER; |
48e43a1c |
139 | save_magic(&mgs, sv); |
463ee0b2 |
140 | |
141 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
142 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
143 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
144 | if (mg->mg_flags & MGf_GSKIP) { |
145 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
48e43a1c |
146 | mgs.mgs_flags = 0; |
a0d0e21e |
147 | } |
76e3520e |
148 | if (vtbl && (vtbl->svt_set != NULL)) |
149 | (VTBL->svt_set)(sv, mg); |
79072805 |
150 | } |
463ee0b2 |
151 | |
c07a80fd |
152 | LEAVE; |
79072805 |
153 | return 0; |
154 | } |
155 | |
156 | U32 |
565764a8 |
157 | mg_length(SV *sv) |
79072805 |
158 | { |
159 | MAGIC* mg; |
748a9306 |
160 | char *junk; |
463ee0b2 |
161 | STRLEN len; |
463ee0b2 |
162 | |
79072805 |
163 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
164 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e |
165 | if (vtbl && (vtbl->svt_len != NULL)) { |
48e43a1c |
166 | MGS mgs; |
167 | |
c07a80fd |
168 | ENTER; |
48e43a1c |
169 | save_magic(&mgs, sv); |
a0d0e21e |
170 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e |
171 | len = (VTBL->svt_len)(sv, mg); |
c07a80fd |
172 | LEAVE; |
85e6fe83 |
173 | return len; |
174 | } |
175 | } |
176 | |
748a9306 |
177 | junk = SvPV(sv, len); |
463ee0b2 |
178 | return len; |
79072805 |
179 | } |
180 | |
93965878 |
181 | I32 |
182 | mg_size(SV *sv) |
183 | { |
184 | MAGIC* mg; |
185 | I32 len; |
186 | |
187 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
188 | MGVTBL* vtbl = mg->mg_virtual; |
565764a8 |
189 | if (vtbl && (vtbl->svt_len != NULL)) { |
93965878 |
190 | MGS mgs; |
191 | ENTER; |
192 | /* omit MGf_GSKIP -- not changed here */ |
565764a8 |
193 | len = (VTBL->svt_len)(sv, mg); |
93965878 |
194 | LEAVE; |
195 | return len; |
196 | } |
197 | } |
198 | |
199 | switch(SvTYPE(sv)) { |
200 | case SVt_PVAV: |
201 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
202 | return len; |
203 | case SVt_PVHV: |
204 | /* FIXME */ |
205 | default: |
206 | croak("Size magic not implemented"); |
207 | break; |
208 | } |
209 | return 0; |
210 | } |
211 | |
79072805 |
212 | int |
8ac85365 |
213 | mg_clear(SV *sv) |
79072805 |
214 | { |
48e43a1c |
215 | MGS mgs; |
79072805 |
216 | MAGIC* mg; |
463ee0b2 |
217 | |
c07a80fd |
218 | ENTER; |
48e43a1c |
219 | save_magic(&mgs, sv); |
463ee0b2 |
220 | |
79072805 |
221 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
222 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
223 | /* omit GSKIP -- never set here */ |
224 | |
76e3520e |
225 | if (vtbl && (vtbl->svt_clear != NULL)) |
226 | (VTBL->svt_clear)(sv, mg); |
79072805 |
227 | } |
463ee0b2 |
228 | |
c07a80fd |
229 | LEAVE; |
79072805 |
230 | return 0; |
231 | } |
232 | |
93a17b20 |
233 | MAGIC* |
8ac85365 |
234 | mg_find(SV *sv, int type) |
93a17b20 |
235 | { |
236 | MAGIC* mg; |
93a17b20 |
237 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
238 | if (mg->mg_type == type) |
239 | return mg; |
240 | } |
241 | return 0; |
242 | } |
243 | |
79072805 |
244 | int |
8ac85365 |
245 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 |
246 | { |
463ee0b2 |
247 | int count = 0; |
79072805 |
248 | MAGIC* mg; |
463ee0b2 |
249 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
250 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
251 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
252 | count++; |
79072805 |
253 | } |
79072805 |
254 | } |
463ee0b2 |
255 | return count; |
79072805 |
256 | } |
257 | |
258 | int |
8ac85365 |
259 | mg_free(SV *sv) |
79072805 |
260 | { |
261 | MAGIC* mg; |
262 | MAGIC* moremagic; |
263 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
264 | MGVTBL* vtbl = mg->mg_virtual; |
265 | moremagic = mg->mg_moremagic; |
76e3520e |
266 | if (vtbl && (vtbl->svt_free != NULL)) |
267 | (VTBL->svt_free)(sv, mg); |
93a17b20 |
268 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 |
269 | if (mg->mg_len >= 0) |
88e89b8a |
270 | Safefree(mg->mg_ptr); |
565764a8 |
271 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a |
272 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
273 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
274 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
275 | Safefree(mg); |
276 | } |
277 | SvMAGIC(sv) = 0; |
278 | return 0; |
279 | } |
280 | |
281 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
282 | #include <signal.h> |
283 | #endif |
284 | |
93a17b20 |
285 | U32 |
8ac85365 |
286 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 |
287 | { |
a863c7d1 |
288 | dTHR; |
93a17b20 |
289 | register I32 paren; |
290 | register char *s; |
291 | register I32 i; |
bbce6d69 |
292 | register REGEXP *rx; |
748a9306 |
293 | char *t; |
93a17b20 |
294 | |
295 | switch (*mg->mg_ptr) { |
296 | case '1': case '2': case '3': case '4': |
297 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
298 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 |
299 | paren = atoi(mg->mg_ptr); |
300 | getparen: |
bbce6d69 |
301 | if (paren <= rx->nparens && |
302 | (s = rx->startp[paren]) && |
303 | (t = rx->endp[paren])) |
304 | { |
748a9306 |
305 | i = t - s; |
71be2cbc |
306 | if (i >= 0) |
93a17b20 |
307 | return i; |
93a17b20 |
308 | } |
93a17b20 |
309 | } |
748a9306 |
310 | return 0; |
93a17b20 |
311 | case '+': |
bbce6d69 |
312 | if (curpm && (rx = curpm->op_pmregexp)) { |
313 | paren = rx->lastparen; |
13f57bf8 |
314 | if (paren) |
315 | goto getparen; |
93a17b20 |
316 | } |
748a9306 |
317 | return 0; |
93a17b20 |
318 | case '`': |
bbce6d69 |
319 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
320 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
321 | i = rx->startp[0] - s; |
71be2cbc |
322 | if (i >= 0) |
93a17b20 |
323 | return i; |
93a17b20 |
324 | } |
93a17b20 |
325 | } |
748a9306 |
326 | return 0; |
93a17b20 |
327 | case '\'': |
bbce6d69 |
328 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
329 | if (rx->subend && (s = rx->endp[0])) { |
330 | i = rx->subend - s; |
331 | if (i >= 0) |
5cd24f17 |
332 | return i; |
93a17b20 |
333 | } |
93a17b20 |
334 | } |
748a9306 |
335 | return 0; |
93a17b20 |
336 | case ',': |
337 | return (STRLEN)ofslen; |
338 | case '\\': |
339 | return (STRLEN)orslen; |
340 | } |
341 | magic_get(sv,mg); |
342 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
343 | sv_2pv(sv, &na); |
93a17b20 |
344 | if (SvPOK(sv)) |
345 | return SvCUR(sv); |
346 | return 0; |
347 | } |
348 | |
79072805 |
349 | int |
8ac85365 |
350 | magic_get(SV *sv, MAGIC *mg) |
79072805 |
351 | { |
a863c7d1 |
352 | dTHR; |
79072805 |
353 | register I32 paren; |
354 | register char *s; |
355 | register I32 i; |
bbce6d69 |
356 | register REGEXP *rx; |
748a9306 |
357 | char *t; |
79072805 |
358 | |
359 | switch (*mg->mg_ptr) { |
748a9306 |
360 | case '\001': /* ^A */ |
361 | sv_setsv(sv, bodytarget); |
362 | break; |
79072805 |
363 | case '\004': /* ^D */ |
188ea221 |
364 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 |
365 | break; |
28f23441 |
366 | case '\005': /* ^E */ |
367 | #ifdef VMS |
368 | { |
369 | # include <descrip.h> |
370 | # include <starlet.h> |
371 | char msg[255]; |
372 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
373 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
374 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
375 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
376 | else |
377 | sv_setpv(sv,""); |
378 | } |
379 | #else |
88e89b8a |
380 | #ifdef OS2 |
fb73857a |
381 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
382 | sv_setnv(sv, (double)errno); |
383 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
384 | } else { |
385 | if (errno != errno_isOS2) |
386 | Perl_rc = _syserrno(); |
387 | sv_setnv(sv, (double)Perl_rc); |
388 | sv_setpv(sv, os2error(Perl_rc)); |
389 | } |
88e89b8a |
390 | #else |
22fae026 |
391 | #ifdef WIN32 |
392 | { |
393 | DWORD dwErr = GetLastError(); |
394 | sv_setnv(sv, (double)dwErr); |
395 | if (dwErr) |
76e3520e |
396 | { |
397 | #ifdef PERL_OBJECT |
398 | char *sMsg; |
399 | DWORD dwLen; |
400 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); |
401 | sv_setpvn(sv, sMsg, dwLen); |
402 | PerlProc_FreeBuf(sMsg); |
403 | #else |
22fae026 |
404 | win32_str_os_error(sv, dwErr); |
76e3520e |
405 | #endif |
406 | } |
22fae026 |
407 | else |
408 | sv_setpv(sv, ""); |
409 | SetLastError(dwErr); |
410 | } |
411 | #else |
946ec16e |
412 | sv_setnv(sv, (double)errno); |
28f23441 |
413 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
414 | #endif |
88e89b8a |
415 | #endif |
22fae026 |
416 | #endif |
946ec16e |
417 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
418 | break; |
79072805 |
419 | case '\006': /* ^F */ |
188ea221 |
420 | sv_setiv(sv, (IV)maxsysfd); |
79072805 |
421 | break; |
a0d0e21e |
422 | case '\010': /* ^H */ |
188ea221 |
423 | sv_setiv(sv, (IV)hints); |
a0d0e21e |
424 | break; |
79072805 |
425 | case '\t': /* ^I */ |
426 | if (inplace) |
427 | sv_setpv(sv, inplace); |
428 | else |
188ea221 |
429 | sv_setsv(sv, &sv_undef); |
79072805 |
430 | break; |
28f23441 |
431 | case '\017': /* ^O */ |
188ea221 |
432 | sv_setpv(sv, osname); |
28f23441 |
433 | break; |
79072805 |
434 | case '\020': /* ^P */ |
188ea221 |
435 | sv_setiv(sv, (IV)perldb); |
79072805 |
436 | break; |
fb73857a |
437 | case '\023': /* ^S */ |
d58bf5aa |
438 | { |
439 | dTHR; |
440 | if (lex_state != LEX_NOTPARSING) |
441 | SvOK_off(sv); |
442 | else if (in_eval) |
443 | sv_setiv(sv, 1); |
444 | else |
445 | sv_setiv(sv, 0); |
446 | } |
fb73857a |
447 | break; |
79072805 |
448 | case '\024': /* ^T */ |
88e89b8a |
449 | #ifdef BIG_TIME |
188ea221 |
450 | sv_setnv(sv, basetime); |
88e89b8a |
451 | #else |
188ea221 |
452 | sv_setiv(sv, (IV)basetime); |
88e89b8a |
453 | #endif |
79072805 |
454 | break; |
455 | case '\027': /* ^W */ |
188ea221 |
456 | sv_setiv(sv, (IV)dowarn); |
79072805 |
457 | break; |
458 | case '1': case '2': case '3': case '4': |
459 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
460 | if (curpm && (rx = curpm->op_pmregexp)) { |
a863c7d1 |
461 | /* |
462 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
463 | * XXX Does the new way break anything? |
464 | */ |
465 | paren = atoi(mg->mg_ptr); |
79072805 |
466 | getparen: |
bbce6d69 |
467 | if (paren <= rx->nparens && |
468 | (s = rx->startp[paren]) && |
469 | (t = rx->endp[paren])) |
470 | { |
748a9306 |
471 | i = t - s; |
13f57bf8 |
472 | getrx: |
748a9306 |
473 | if (i >= 0) { |
13f57bf8 |
474 | bool was_tainted; |
475 | if (tainting) { |
476 | was_tainted = tainted; |
477 | tainted = FALSE; |
478 | } |
79072805 |
479 | sv_setpvn(sv,s,i); |
13f57bf8 |
480 | if (tainting) |
c277df42 |
481 | tainted = was_tainted || RX_MATCH_TAINTED(rx); |
748a9306 |
482 | break; |
483 | } |
79072805 |
484 | } |
79072805 |
485 | } |
748a9306 |
486 | sv_setsv(sv,&sv_undef); |
79072805 |
487 | break; |
488 | case '+': |
bbce6d69 |
489 | if (curpm && (rx = curpm->op_pmregexp)) { |
490 | paren = rx->lastparen; |
a0d0e21e |
491 | if (paren) |
492 | goto getparen; |
79072805 |
493 | } |
748a9306 |
494 | sv_setsv(sv,&sv_undef); |
79072805 |
495 | break; |
496 | case '`': |
bbce6d69 |
497 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
498 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
499 | i = rx->startp[0] - s; |
13f57bf8 |
500 | goto getrx; |
79072805 |
501 | } |
79072805 |
502 | } |
748a9306 |
503 | sv_setsv(sv,&sv_undef); |
79072805 |
504 | break; |
505 | case '\'': |
bbce6d69 |
506 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
507 | if (rx->subend && (s = rx->endp[0])) { |
508 | i = rx->subend - s; |
509 | goto getrx; |
79072805 |
510 | } |
79072805 |
511 | } |
748a9306 |
512 | sv_setsv(sv,&sv_undef); |
79072805 |
513 | break; |
514 | case '.': |
515 | #ifndef lint |
a0d0e21e |
516 | if (GvIO(last_in_gv)) { |
188ea221 |
517 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 |
518 | } |
519 | #endif |
520 | break; |
521 | case '?': |
809a5acc |
522 | { |
523 | dTHR; |
524 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
525 | #ifdef COMPLEX_STATUS |
809a5acc |
526 | LvTARGOFF(sv) = statusvalue; |
527 | LvTARGLEN(sv) = statusvalue_vms; |
ff0cee69 |
528 | #endif |
809a5acc |
529 | } |
79072805 |
530 | break; |
531 | case '^': |
a0d0e21e |
532 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
533 | if (s) |
534 | sv_setpv(sv,s); |
535 | else { |
536 | sv_setpv(sv,GvENAME(defoutgv)); |
537 | sv_catpv(sv,"_TOP"); |
538 | } |
539 | break; |
540 | case '~': |
a0d0e21e |
541 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
542 | if (!s) |
543 | s = GvENAME(defoutgv); |
544 | sv_setpv(sv,s); |
545 | break; |
546 | #ifndef lint |
547 | case '=': |
188ea221 |
548 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
549 | break; |
550 | case '-': |
188ea221 |
551 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
552 | break; |
553 | case '%': |
188ea221 |
554 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 |
555 | break; |
556 | #endif |
557 | case ':': |
558 | break; |
559 | case '/': |
560 | break; |
561 | case '[': |
0f15f207 |
562 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 |
563 | break; |
564 | case '|': |
188ea221 |
565 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
566 | break; |
567 | case ',': |
568 | sv_setpvn(sv,ofs,ofslen); |
569 | break; |
570 | case '\\': |
571 | sv_setpvn(sv,ors,orslen); |
572 | break; |
573 | case '#': |
574 | sv_setpv(sv,ofmt); |
575 | break; |
576 | case '!': |
a5f75d66 |
577 | #ifdef VMS |
946ec16e |
578 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
579 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
580 | #else |
88e89b8a |
581 | { |
582 | int saveerrno = errno; |
946ec16e |
583 | sv_setnv(sv, (double)errno); |
88e89b8a |
584 | #ifdef OS2 |
585 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
586 | else |
a5f75d66 |
587 | #endif |
2304df62 |
588 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
589 | errno = saveerrno; |
590 | } |
591 | #endif |
946ec16e |
592 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
593 | break; |
594 | case '<': |
188ea221 |
595 | sv_setiv(sv, (IV)uid); |
79072805 |
596 | break; |
597 | case '>': |
188ea221 |
598 | sv_setiv(sv, (IV)euid); |
79072805 |
599 | break; |
600 | case '(': |
188ea221 |
601 | sv_setiv(sv, (IV)gid); |
fc36a67e |
602 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 |
603 | goto add_groups; |
604 | case ')': |
188ea221 |
605 | sv_setiv(sv, (IV)egid); |
fc36a67e |
606 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 |
607 | add_groups: |
79072805 |
608 | #ifdef HAS_GETGROUPS |
79072805 |
609 | { |
a0d0e21e |
610 | Groups_t gary[NGROUPS]; |
79072805 |
611 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
612 | while (--i >= 0) |
fc36a67e |
613 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
614 | } |
615 | #endif |
29355cf7 |
616 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
617 | break; |
618 | case '*': |
619 | break; |
620 | case '0': |
621 | break; |
a863c7d1 |
622 | #ifdef USE_THREADS |
623 | case '@': |
38a03e6e |
624 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
625 | break; |
626 | #endif /* USE_THREADS */ |
79072805 |
627 | } |
a0d0e21e |
628 | return 0; |
79072805 |
629 | } |
630 | |
631 | int |
8ac85365 |
632 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 |
633 | { |
634 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
635 | |
636 | if (uf && uf->uf_val) |
637 | (*uf->uf_val)(uf->uf_index, sv); |
638 | return 0; |
639 | } |
640 | |
641 | int |
8ac85365 |
642 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 |
643 | { |
644 | register char *s; |
88e89b8a |
645 | char *ptr; |
5aabfad6 |
646 | STRLEN len, klen; |
a0d0e21e |
647 | I32 i; |
1e422769 |
648 | |
a0d0e21e |
649 | s = SvPV(sv,len); |
5aabfad6 |
650 | ptr = MgPV(mg,klen); |
88e89b8a |
651 | my_setenv(ptr, s); |
1e422769 |
652 | |
a0d0e21e |
653 | #ifdef DYNAMIC_ENV_FETCH |
654 | /* We just undefd an environment var. Is a replacement */ |
655 | /* waiting in the wings? */ |
656 | if (!len) { |
5aabfad6 |
657 | SV **valp; |
658 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) |
659 | s = SvPV(*valp, len); |
a0d0e21e |
660 | } |
661 | #endif |
1e422769 |
662 | |
39e571d4 |
663 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 |
664 | /* And you'll never guess what the dog had */ |
665 | /* in its mouth... */ |
463ee0b2 |
666 | if (tainting) { |
1e422769 |
667 | MgTAINTEDDIR_off(mg); |
668 | #ifdef VMS |
5aabfad6 |
669 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
670 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
671 | struct stat sbuf; |
672 | int i = 0, j = 0; |
673 | |
674 | do { /* DCL$PATH may be a search list */ |
675 | while (1) { /* as may dev portion of any element */ |
676 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
677 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
678 | cando_by_name(S_IWUSR,0,elt) ) { |
679 | MgTAINTEDDIR_on(mg); |
680 | return 0; |
681 | } |
682 | } |
683 | if ((cp = strchr(elt, ':')) != Nullch) |
684 | *cp = '\0'; |
685 | if (my_trnlnm(elt, eltbuf, j++)) |
686 | elt = eltbuf; |
687 | else |
688 | break; |
689 | } |
690 | j = 0; |
691 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
692 | } |
693 | #endif /* VMS */ |
5aabfad6 |
694 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
695 | char *strend = s + len; |
463ee0b2 |
696 | |
697 | while (s < strend) { |
96827780 |
698 | char tmpbuf[256]; |
1e422769 |
699 | struct stat st; |
96827780 |
700 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
701 | s, strend, ':', &i); |
463ee0b2 |
702 | s++; |
96827780 |
703 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
704 | || *tmpbuf != '/' |
705 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
706 | MgTAINTEDDIR_on(mg); |
1e422769 |
707 | return 0; |
708 | } |
463ee0b2 |
709 | } |
79072805 |
710 | } |
711 | } |
39e571d4 |
712 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 |
713 | |
79072805 |
714 | return 0; |
715 | } |
716 | |
717 | int |
8ac85365 |
718 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 |
719 | { |
5aabfad6 |
720 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 |
721 | return 0; |
722 | } |
723 | |
88e89b8a |
724 | int |
8ac85365 |
725 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a |
726 | { |
727 | #if defined(VMS) |
728 | die("Can't make list assignment to %%ENV on this system"); |
729 | #else |
d58bf5aa |
730 | dTHR; |
fb73857a |
731 | if (localizing) { |
732 | HE* entry; |
733 | magic_clear_all_env(sv,mg); |
734 | hv_iterinit((HV*)sv); |
735 | while (entry = hv_iternext((HV*)sv)) { |
736 | I32 keylen; |
737 | my_setenv(hv_iterkey(entry, &keylen), |
738 | SvPV(hv_iterval((HV*)sv, entry), na)); |
739 | } |
740 | } |
741 | #endif |
742 | return 0; |
743 | } |
744 | |
745 | int |
8ac85365 |
746 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 |
747 | { |
3e3baf6d |
748 | #if defined(VMS) |
749 | die("Can't make list assignment to %%ENV on this system"); |
750 | #else |
751 | #ifdef WIN32 |
752 | char *envv = GetEnvironmentStrings(); |
753 | char *cur = envv; |
754 | STRLEN len; |
755 | while (*cur) { |
756 | char *end = strchr(cur,'='); |
757 | if (end && end != cur) { |
758 | *end = '\0'; |
759 | my_setenv(cur,Nullch); |
760 | *end = '='; |
761 | cur += strlen(end+1)+1; |
762 | } |
763 | else if ((len = strlen(cur))) |
764 | cur += len+1; |
765 | } |
766 | FreeEnvironmentStrings(envv); |
66b1d557 |
767 | #else |
768 | I32 i; |
769 | |
770 | if (environ == origenviron) |
771 | New(901, environ, 1, char*); |
772 | else |
773 | for (i = 0; environ[i]; i++) |
774 | Safefree(environ[i]); |
775 | environ[0] = Nullch; |
776 | |
66b1d557 |
777 | #endif |
3e3baf6d |
778 | #endif |
779 | return 0; |
66b1d557 |
780 | } |
781 | |
782 | int |
8ac85365 |
783 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a |
784 | { |
785 | I32 i; |
786 | /* Are we fetching a signal entry? */ |
5aabfad6 |
787 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
788 | if (i) { |
789 | if(psig_ptr[i]) |
790 | sv_setsv(sv,psig_ptr[i]); |
791 | else { |
ff68c719 |
792 | Sighandler_t sigstate = rsignal_state(i); |
793 | |
88e89b8a |
794 | /* cache state so we don't fetch it again */ |
ff68c719 |
795 | if(sigstate == SIG_IGN) |
88e89b8a |
796 | sv_setpv(sv,"IGNORE"); |
797 | else |
798 | sv_setsv(sv,&sv_undef); |
799 | psig_ptr[i] = SvREFCNT_inc(sv); |
800 | SvTEMP_off(sv); |
801 | } |
802 | } |
803 | return 0; |
804 | } |
805 | int |
8ac85365 |
806 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a |
807 | { |
808 | I32 i; |
809 | /* Are we clearing a signal entry? */ |
5aabfad6 |
810 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
811 | if (i) { |
812 | if(psig_ptr[i]) { |
813 | SvREFCNT_dec(psig_ptr[i]); |
814 | psig_ptr[i]=0; |
815 | } |
816 | if(psig_name[i]) { |
817 | SvREFCNT_dec(psig_name[i]); |
818 | psig_name[i]=0; |
819 | } |
820 | } |
821 | return 0; |
822 | } |
3d37d572 |
823 | |
85e6fe83 |
824 | int |
8ac85365 |
825 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 |
826 | { |
11343788 |
827 | dTHR; |
79072805 |
828 | register char *s; |
829 | I32 i; |
748a9306 |
830 | SV** svp; |
a0d0e21e |
831 | |
5aabfad6 |
832 | s = MgPV(mg,na); |
748a9306 |
833 | if (*s == '_') { |
834 | if (strEQ(s,"__DIE__")) |
835 | svp = &diehook; |
836 | else if (strEQ(s,"__WARN__")) |
837 | svp = &warnhook; |
838 | else if (strEQ(s,"__PARSE__")) |
839 | svp = &parsehook; |
840 | else |
841 | croak("No such hook: %s", s); |
842 | i = 0; |
4633a7c4 |
843 | if (*svp) { |
844 | SvREFCNT_dec(*svp); |
845 | *svp = 0; |
846 | } |
748a9306 |
847 | } |
848 | else { |
849 | i = whichsig(s); /* ...no, a brick */ |
850 | if (!i) { |
851 | if (dowarn || strEQ(s,"ALARM")) |
852 | warn("No such signal: SIG%s", s); |
853 | return 0; |
854 | } |
ff0cee69 |
855 | SvREFCNT_dec(psig_name[i]); |
856 | SvREFCNT_dec(psig_ptr[i]); |
88e89b8a |
857 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
858 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 |
859 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a |
860 | SvREADONLY_on(psig_name[i]); |
748a9306 |
861 | } |
a0d0e21e |
862 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
863 | if (i) |
c23142e2 |
864 | (void)rsignal(i, sighandlerp); |
748a9306 |
865 | else |
866 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
867 | return 0; |
868 | } |
869 | s = SvPV_force(sv,na); |
748a9306 |
870 | if (strEQ(s,"IGNORE")) { |
871 | if (i) |
ff68c719 |
872 | (void)rsignal(i, SIG_IGN); |
748a9306 |
873 | else |
874 | *svp = 0; |
875 | } |
876 | else if (strEQ(s,"DEFAULT") || !*s) { |
877 | if (i) |
ff68c719 |
878 | (void)rsignal(i, SIG_DFL); |
748a9306 |
879 | else |
880 | *svp = 0; |
881 | } |
79072805 |
882 | else { |
5aabfad6 |
883 | /* |
884 | * We should warn if HINT_STRICT_REFS, but without |
885 | * access to a known hint bit in a known OP, we can't |
886 | * tell whether HINT_STRICT_REFS is in force or not. |
887 | */ |
46fc3d4c |
888 | if (!strchr(s,':') && !strchr(s,'\'')) |
889 | sv_setpv(sv, form("main::%s", s)); |
748a9306 |
890 | if (i) |
c23142e2 |
891 | (void)rsignal(i, sighandlerp); |
748a9306 |
892 | else |
893 | *svp = SvREFCNT_inc(sv); |
79072805 |
894 | } |
895 | return 0; |
896 | } |
897 | |
898 | int |
8ac85365 |
899 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 |
900 | { |
a0231f0e |
901 | HV *stash; |
902 | SV **svp; |
903 | I32 fill; |
904 | HV *basefields = Nullhv; |
905 | GV **gvp; |
906 | GV *gv; |
907 | HE *he; |
908 | static char *FIELDS = "FIELDS"; |
909 | |
463ee0b2 |
910 | sub_generation++; |
a0231f0e |
911 | |
912 | if (mg->mg_type == 'i') |
913 | return 0; /* Ignore lower-case version of the magic */ |
914 | |
915 | stash = GvSTASH(mg->mg_obj); |
916 | svp = AvARRAY((AV*)sv); |
93965878 |
917 | |
918 | /* NOTE: No support for tied ISA */ |
919 | for (fill = AvFILLp((AV*)sv); fill >= 0; fill--, svp++) { |
a0231f0e |
920 | HV *basestash = gv_stashsv(*svp, FALSE); |
921 | |
922 | if (!basestash) { |
923 | if (dowarn) |
924 | warn("No such package \"%_\" in @ISA assignment", *svp); |
925 | continue; |
926 | } |
927 | gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE); |
928 | if (gvp && *gvp && GvHV(*gvp)) { |
929 | if (basefields) |
930 | croak("Can't multiply inherit %%FIELDS"); |
931 | basefields = GvHV(*gvp); |
932 | } |
933 | } |
934 | |
935 | if (!basefields) |
936 | return 0; |
937 | |
938 | gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE); |
939 | if (!isGV(gv)) |
940 | gv_init(gv, stash, FIELDS, 6, TRUE); |
941 | if (!GvHV(gv)) |
942 | GvHV(gv) = newHV(); |
943 | if (HvKEYS(GvHV(gv))) |
944 | croak("Inherited %%FIELDS can't override existing %%FIELDS"); |
945 | |
946 | hv_iterinit(GvHV(gv)); |
947 | while ((he = hv_iternext(basefields))) |
948 | hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he)); |
949 | |
463ee0b2 |
950 | return 0; |
951 | } |
952 | |
a0d0e21e |
953 | #ifdef OVERLOAD |
954 | |
463ee0b2 |
955 | int |
8ac85365 |
956 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 |
957 | { |
a0d0e21e |
958 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
959 | amagic_generation++; |
463ee0b2 |
960 | |
a0d0e21e |
961 | return 0; |
962 | } |
963 | #endif /* OVERLOAD */ |
463ee0b2 |
964 | |
946ec16e |
965 | int |
8ac85365 |
966 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e |
967 | { |
968 | if (LvTARG(sv)) { |
969 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
970 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ |
971 | } |
972 | return 0; |
93965878 |
973 | } |
946ec16e |
974 | |
565764a8 |
975 | STATIC int |
93965878 |
976 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e |
977 | { |
978 | dSP; |
463ee0b2 |
979 | |
a0d0e21e |
980 | PUSHMARK(sp); |
93965878 |
981 | EXTEND(sp, n); |
a0d0e21e |
982 | PUSHs(mg->mg_obj); |
93965878 |
983 | if (n > 1) { |
984 | if (mg->mg_ptr) { |
565764a8 |
985 | if (mg->mg_len >= 0) |
986 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
987 | else if (mg->mg_len == HEf_SVKEY) |
93965878 |
988 | PUSHs((SV*)mg->mg_ptr); |
989 | } |
990 | else if (mg->mg_type == 'p') { |
565764a8 |
991 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 |
992 | } |
993 | } |
994 | if (n > 2) { |
995 | PUSHs(val); |
88e89b8a |
996 | } |
463ee0b2 |
997 | PUTBACK; |
998 | |
93965878 |
999 | return perl_call_method(meth, flags); |
946ec16e |
1000 | } |
1001 | |
76e3520e |
1002 | STATIC int |
8ac85365 |
1003 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
1004 | { |
1005 | dSP; |
463ee0b2 |
1006 | |
a0d0e21e |
1007 | ENTER; |
1008 | SAVETMPS; |
463ee0b2 |
1009 | |
93965878 |
1010 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { |
a0d0e21e |
1011 | sv_setsv(sv, *stack_sp--); |
93965878 |
1012 | } |
463ee0b2 |
1013 | |
a0d0e21e |
1014 | FREETMPS; |
1015 | LEAVE; |
1016 | return 0; |
1017 | } |
463ee0b2 |
1018 | |
a0d0e21e |
1019 | int |
8ac85365 |
1020 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e |
1021 | { |
1022 | magic_methpack(sv,mg,"FETCH"); |
1023 | if (mg->mg_ptr) |
1024 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
1025 | return 0; |
1026 | } |
1027 | |
1028 | int |
8ac85365 |
1029 | magic_setpack(SV *sv, MAGIC *mg) |
a60c0954 |
1030 | { |
1031 | ENTER; |
93965878 |
1032 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
a60c0954 |
1033 | LEAVE; |
463ee0b2 |
1034 | return 0; |
1035 | } |
1036 | |
1037 | int |
8ac85365 |
1038 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 |
1039 | { |
a0d0e21e |
1040 | return magic_methpack(sv,mg,"DELETE"); |
1041 | } |
463ee0b2 |
1042 | |
93965878 |
1043 | |
1044 | U32 |
1045 | magic_sizepack(SV *sv, MAGIC *mg) |
1046 | { |
1047 | dTHR; |
1048 | U32 retval = 0; |
1049 | |
1050 | ENTER; |
1051 | SAVETMPS; |
1052 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
1053 | sv = *stack_sp--; |
a60c0954 |
1054 | retval = (U32) SvIV(sv)-1; |
93965878 |
1055 | } |
1056 | FREETMPS; |
1057 | LEAVE; |
1058 | return retval; |
1059 | } |
1060 | |
8ac85365 |
1061 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e |
1062 | { |
1063 | dSP; |
463ee0b2 |
1064 | |
a0d0e21e |
1065 | PUSHMARK(sp); |
1066 | XPUSHs(mg->mg_obj); |
463ee0b2 |
1067 | PUTBACK; |
a60c0954 |
1068 | ENTER; |
a0d0e21e |
1069 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
a60c0954 |
1070 | LEAVE; |
463ee0b2 |
1071 | return 0; |
1072 | } |
1073 | |
1074 | int |
8ac85365 |
1075 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
1076 | { |
463ee0b2 |
1077 | dSP; |
a0d0e21e |
1078 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1079 | |
1080 | ENTER; |
a0d0e21e |
1081 | SAVETMPS; |
1082 | PUSHMARK(sp); |
1083 | EXTEND(sp, 2); |
1084 | PUSHs(mg->mg_obj); |
463ee0b2 |
1085 | if (SvOK(key)) |
1086 | PUSHs(key); |
1087 | PUTBACK; |
1088 | |
a0d0e21e |
1089 | if (perl_call_method(meth, G_SCALAR)) |
1090 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
1091 | |
a0d0e21e |
1092 | FREETMPS; |
1093 | LEAVE; |
79072805 |
1094 | return 0; |
1095 | } |
1096 | |
1097 | int |
8ac85365 |
1098 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e |
1099 | { |
1100 | return magic_methpack(sv,mg,"EXISTS"); |
1101 | } |
1102 | |
1103 | int |
8ac85365 |
1104 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 |
1105 | { |
11343788 |
1106 | dTHR; |
79072805 |
1107 | OP *o; |
1108 | I32 i; |
1109 | GV* gv; |
1110 | SV** svp; |
1111 | |
1112 | gv = DBline; |
1113 | i = SvTRUE(sv); |
188ea221 |
1114 | svp = av_fetch(GvAV(gv), |
5aabfad6 |
1115 | atoi(MgPV(mg,na)), FALSE); |
8990e307 |
1116 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
1117 | o->op_private = i; |
79072805 |
1118 | else |
1119 | warn("Can't break at that line\n"); |
1120 | return 0; |
1121 | } |
1122 | |
1123 | int |
8ac85365 |
1124 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 |
1125 | { |
0f15f207 |
1126 | dTHR; |
a0d0e21e |
1127 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
1128 | return 0; |
1129 | } |
1130 | |
1131 | int |
8ac85365 |
1132 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 |
1133 | { |
0f15f207 |
1134 | dTHR; |
a0d0e21e |
1135 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1136 | return 0; |
1137 | } |
1138 | |
1139 | int |
8ac85365 |
1140 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1141 | { |
1142 | SV* lsv = LvTARG(sv); |
1143 | |
1144 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1145 | mg = mg_find(lsv, 'g'); |
565764a8 |
1146 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1147 | dTHR; |
565764a8 |
1148 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
a0d0e21e |
1149 | return 0; |
1150 | } |
1151 | } |
1152 | (void)SvOK_off(sv); |
1153 | return 0; |
1154 | } |
1155 | |
1156 | int |
8ac85365 |
1157 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1158 | { |
1159 | SV* lsv = LvTARG(sv); |
1160 | SSize_t pos; |
1161 | STRLEN len; |
1162 | |
1163 | mg = 0; |
1164 | |
1165 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1166 | mg = mg_find(lsv, 'g'); |
1167 | if (!mg) { |
1168 | if (!SvOK(sv)) |
1169 | return 0; |
1170 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1171 | mg = mg_find(lsv, 'g'); |
1172 | } |
1173 | else if (!SvOK(sv)) { |
565764a8 |
1174 | mg->mg_len = -1; |
a0d0e21e |
1175 | return 0; |
1176 | } |
1177 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1178 | |
0f15f207 |
1179 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e |
1180 | if (pos < 0) { |
1181 | pos += len; |
1182 | if (pos < 0) |
1183 | pos = 0; |
1184 | } |
1185 | else if (pos > len) |
1186 | pos = len; |
565764a8 |
1187 | mg->mg_len = pos; |
71be2cbc |
1188 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1189 | |
79072805 |
1190 | return 0; |
1191 | } |
1192 | |
1193 | int |
8ac85365 |
1194 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 |
1195 | { |
8646b087 |
1196 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1197 | SvFAKE_off(sv); |
946ec16e |
1198 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1199 | SvFAKE_on(sv); |
1200 | } |
1201 | else |
946ec16e |
1202 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1203 | return 0; |
1204 | } |
1205 | |
1206 | int |
8ac85365 |
1207 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 |
1208 | { |
1209 | register char *s; |
1210 | GV* gv; |
1211 | |
1212 | if (!SvOK(sv)) |
1213 | return 0; |
463ee0b2 |
1214 | s = SvPV(sv, na); |
79072805 |
1215 | if (*s == '*' && s[1]) |
1216 | s++; |
85e6fe83 |
1217 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1218 | if (sv == (SV*)gv) |
1219 | return 0; |
1220 | if (GvGP(sv)) |
88e89b8a |
1221 | gp_free((GV*)sv); |
79072805 |
1222 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1223 | return 0; |
1224 | } |
1225 | |
1226 | int |
8ac85365 |
1227 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 |
1228 | { |
8990e307 |
1229 | STRLEN len; |
1230 | char *tmps = SvPV(sv,len); |
1231 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1232 | return 0; |
1233 | } |
1234 | |
1235 | int |
8ac85365 |
1236 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1237 | { |
a863c7d1 |
1238 | dTHR; |
565764a8 |
1239 | TAINT_IF((mg->mg_len & 1) || |
1240 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1241 | return 0; |
1242 | } |
1243 | |
1244 | int |
8ac85365 |
1245 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1246 | { |
11343788 |
1247 | dTHR; |
748a9306 |
1248 | if (localizing) { |
1249 | if (localizing == 1) |
565764a8 |
1250 | mg->mg_len <<= 1; |
748a9306 |
1251 | else |
565764a8 |
1252 | mg->mg_len >>= 1; |
a0d0e21e |
1253 | } |
748a9306 |
1254 | else if (tainted) |
565764a8 |
1255 | mg->mg_len |= 1; |
748a9306 |
1256 | else |
565764a8 |
1257 | mg->mg_len &= ~1; |
463ee0b2 |
1258 | return 0; |
1259 | } |
1260 | |
1261 | int |
8ac85365 |
1262 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 |
1263 | { |
1264 | do_vecset(sv); /* XXX slurp this routine */ |
1265 | return 0; |
1266 | } |
1267 | |
1268 | int |
8ac85365 |
1269 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1270 | { |
71be2cbc |
1271 | SV *targ = Nullsv; |
5f05dabc |
1272 | if (LvTARGLEN(sv)) { |
68dc0745 |
1273 | if (mg->mg_obj) { |
1274 | HV* hv = (HV*)LvTARG(sv); |
1275 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); |
1276 | if (he) |
1277 | targ = HeVAL(he); |
1278 | } |
1279 | else { |
93965878 |
1280 | AV* av = (AV*)LvTARG(sv); |
68dc0745 |
1281 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1282 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1283 | } |
1284 | if (targ && targ != &sv_undef) { |
e858de61 |
1285 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1286 | /* somebody else defined it for us */ |
1287 | SvREFCNT_dec(LvTARG(sv)); |
1288 | LvTARG(sv) = SvREFCNT_inc(targ); |
1289 | LvTARGLEN(sv) = 0; |
1290 | SvREFCNT_dec(mg->mg_obj); |
1291 | mg->mg_obj = Nullsv; |
1292 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1293 | } |
5f05dabc |
1294 | } |
71be2cbc |
1295 | else |
1296 | targ = LvTARG(sv); |
1297 | sv_setsv(sv, targ ? targ : &sv_undef); |
1298 | return 0; |
1299 | } |
1300 | |
1301 | int |
8ac85365 |
1302 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc |
1303 | { |
1304 | if (LvTARGLEN(sv)) |
68dc0745 |
1305 | vivify_defelem(sv); |
1306 | if (LvTARG(sv)) { |
5f05dabc |
1307 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1308 | SvSETMAGIC(LvTARG(sv)); |
1309 | } |
5f05dabc |
1310 | return 0; |
1311 | } |
1312 | |
1313 | int |
8ac85365 |
1314 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1315 | { |
1316 | SvREFCNT_dec(LvTARG(sv)); |
71be2cbc |
1317 | return 0; |
1318 | } |
1319 | |
1320 | void |
8ac85365 |
1321 | vivify_defelem(SV *sv) |
71be2cbc |
1322 | { |
e858de61 |
1323 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 |
1324 | MAGIC* mg; |
1325 | SV* value; |
71be2cbc |
1326 | |
68dc0745 |
1327 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1328 | return; |
68dc0745 |
1329 | if (mg->mg_obj) { |
1330 | HV* hv = (HV*)LvTARG(sv); |
1331 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); |
1332 | if (!he || (value = HeVAL(he)) == &sv_undef) |
1333 | croak(no_helem, SvPV(mg->mg_obj, na)); |
71be2cbc |
1334 | } |
68dc0745 |
1335 | else { |
1336 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1337 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1338 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1339 | else { |
1340 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
1341 | if (!svp || (value = *svp) == &sv_undef) |
1342 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1343 | } |
1344 | } |
3e3baf6d |
1345 | (void)SvREFCNT_inc(value); |
68dc0745 |
1346 | SvREFCNT_dec(LvTARG(sv)); |
1347 | LvTARG(sv) = value; |
71be2cbc |
1348 | LvTARGLEN(sv) = 0; |
68dc0745 |
1349 | SvREFCNT_dec(mg->mg_obj); |
1350 | mg->mg_obj = Nullsv; |
1351 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1352 | } |
1353 | |
1354 | int |
8ac85365 |
1355 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 |
1356 | { |
565764a8 |
1357 | mg->mg_len = -1; |
c6496cc7 |
1358 | SvSCREAM_off(sv); |
93a17b20 |
1359 | return 0; |
1360 | } |
1361 | |
1362 | int |
8ac85365 |
1363 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 |
1364 | { |
463ee0b2 |
1365 | sv_unmagic(sv, 'B'); |
79072805 |
1366 | SvVALID_off(sv); |
1367 | return 0; |
1368 | } |
1369 | |
1370 | int |
8ac85365 |
1371 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff |
1372 | { |
1373 | sv_unmagic(sv, 'f'); |
1374 | SvCOMPILED_off(sv); |
1375 | return 0; |
1376 | } |
1377 | |
1378 | int |
8ac85365 |
1379 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 |
1380 | { |
1381 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1382 | |
1383 | if (uf && uf->uf_set) |
1384 | (*uf->uf_set)(uf->uf_index, sv); |
1385 | return 0; |
1386 | } |
1387 | |
c277df42 |
1388 | int |
1389 | magic_freeregexp(SV *sv, MAGIC *mg) |
1390 | { |
1391 | regexp *re = (regexp *)mg->mg_obj; |
1392 | ReREFCNT_dec(re); |
1393 | return 0; |
1394 | } |
1395 | |
7a4c00b4 |
1396 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1397 | int |
8ac85365 |
1398 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 |
1399 | { |
1400 | /* |
1401 | * René Descartes said "I think not." |
1402 | * and vanished with a faint plop. |
1403 | */ |
7a4c00b4 |
1404 | if (mg->mg_ptr) { |
1405 | Safefree(mg->mg_ptr); |
1406 | mg->mg_ptr = NULL; |
565764a8 |
1407 | mg->mg_len = -1; |
7a4c00b4 |
1408 | } |
bbce6d69 |
1409 | return 0; |
1410 | } |
7a4c00b4 |
1411 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1412 | |
1413 | int |
8ac85365 |
1414 | magic_set(SV *sv, MAGIC *mg) |
79072805 |
1415 | { |
11343788 |
1416 | dTHR; |
79072805 |
1417 | register char *s; |
1418 | I32 i; |
8990e307 |
1419 | STRLEN len; |
79072805 |
1420 | switch (*mg->mg_ptr) { |
748a9306 |
1421 | case '\001': /* ^A */ |
1422 | sv_setsv(bodytarget, sv); |
1423 | break; |
79072805 |
1424 | case '\004': /* ^D */ |
8990e307 |
1425 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1426 | DEBUG_x(dump_all()); |
1427 | break; |
28f23441 |
1428 | case '\005': /* ^E */ |
1429 | #ifdef VMS |
1430 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1431 | #else |
22fae026 |
1432 | #ifdef WIN32 |
1433 | SetLastError( SvIV(sv) ); |
1434 | #else |
f86702cc |
1435 | /* will anyone ever use this? */ |
1436 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1437 | #endif |
22fae026 |
1438 | #endif |
28f23441 |
1439 | break; |
79072805 |
1440 | case '\006': /* ^F */ |
463ee0b2 |
1441 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1442 | break; |
a0d0e21e |
1443 | case '\010': /* ^H */ |
1444 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1445 | break; |
79072805 |
1446 | case '\t': /* ^I */ |
1447 | if (inplace) |
1448 | Safefree(inplace); |
1449 | if (SvOK(sv)) |
a0d0e21e |
1450 | inplace = savepv(SvPV(sv,na)); |
79072805 |
1451 | else |
1452 | inplace = Nullch; |
1453 | break; |
28f23441 |
1454 | case '\017': /* ^O */ |
1455 | if (osname) |
1456 | Safefree(osname); |
1457 | if (SvOK(sv)) |
1458 | osname = savepv(SvPV(sv,na)); |
1459 | else |
1460 | osname = Nullch; |
1461 | break; |
79072805 |
1462 | case '\020': /* ^P */ |
84902520 |
1463 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1464 | break; |
1465 | case '\024': /* ^T */ |
88e89b8a |
1466 | #ifdef BIG_TIME |
1467 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
1468 | #else |
85e6fe83 |
1469 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1470 | #endif |
79072805 |
1471 | break; |
1472 | case '\027': /* ^W */ |
463ee0b2 |
1473 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1474 | break; |
1475 | case '.': |
748a9306 |
1476 | if (localizing) { |
1477 | if (localizing == 1) |
1478 | save_sptr((SV**)&last_in_gv); |
1479 | } |
88e89b8a |
1480 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e |
1481 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1482 | break; |
1483 | case '^': |
a0d0e21e |
1484 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1485 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1486 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1487 | break; |
1488 | case '~': |
a0d0e21e |
1489 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1490 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1491 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1492 | break; |
1493 | case '=': |
a0d0e21e |
1494 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1495 | break; |
1496 | case '-': |
a0d0e21e |
1497 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1498 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1499 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1500 | break; |
1501 | case '%': |
a0d0e21e |
1502 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1503 | break; |
1504 | case '|': |
4b65379b |
1505 | { |
1506 | IO *io = GvIOp(defoutgv); |
1507 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1508 | IoFLAGS(io) &= ~IOf_FLUSH; |
1509 | else { |
1510 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1511 | PerlIO *ofp = IoOFP(io); |
1512 | if (ofp) |
1513 | (void)PerlIO_flush(ofp); |
1514 | IoFLAGS(io) |= IOf_FLUSH; |
1515 | } |
1516 | } |
79072805 |
1517 | } |
1518 | break; |
1519 | case '*': |
463ee0b2 |
1520 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1521 | multiline = (i != 0); |
1522 | break; |
1523 | case '/': |
c07a80fd |
1524 | SvREFCNT_dec(nrs); |
1525 | nrs = newSVsv(sv); |
1526 | SvREFCNT_dec(rs); |
1527 | rs = SvREFCNT_inc(nrs); |
79072805 |
1528 | break; |
1529 | case '\\': |
1530 | if (ors) |
1531 | Safefree(ors); |
e3c19b7b |
1532 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1533 | ors = savepv(SvPV(sv,orslen)); |
1534 | else { |
1535 | ors = Nullch; |
1536 | orslen = 0; |
1537 | } |
79072805 |
1538 | break; |
1539 | case ',': |
1540 | if (ofs) |
1541 | Safefree(ofs); |
a0d0e21e |
1542 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1543 | break; |
1544 | case '#': |
1545 | if (ofmt) |
1546 | Safefree(ofmt); |
a0d0e21e |
1547 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1548 | break; |
1549 | case '[': |
a0d0e21e |
1550 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1551 | break; |
1552 | case '?': |
ff0cee69 |
1553 | #ifdef COMPLEX_STATUS |
1554 | if (localizing == 2) { |
1555 | statusvalue = LvTARGOFF(sv); |
1556 | statusvalue_vms = LvTARGLEN(sv); |
1557 | } |
1558 | else |
1559 | #endif |
1560 | #ifdef VMSISH_STATUS |
1561 | if (VMSISH_STATUS) |
1562 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1563 | else |
1564 | #endif |
1565 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1566 | break; |
1567 | case '!': |
f86702cc |
1568 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1569 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1570 | break; |
1571 | case '<': |
463ee0b2 |
1572 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1573 | if (delaymagic) { |
1574 | delaymagic |= DM_RUID; |
1575 | break; /* don't do magic till later */ |
1576 | } |
1577 | #ifdef HAS_SETRUID |
85e6fe83 |
1578 | (void)setruid((Uid_t)uid); |
79072805 |
1579 | #else |
1580 | #ifdef HAS_SETREUID |
85e6fe83 |
1581 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1582 | #else |
85e6fe83 |
1583 | #ifdef HAS_SETRESUID |
1584 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1585 | #else |
1586 | if (uid == euid) /* special case $< = $> */ |
76e3520e |
1587 | (void)PerlProc_setuid(uid); |
a0d0e21e |
1588 | else { |
76e3520e |
1589 | uid = (I32)PerlProc_getuid(); |
463ee0b2 |
1590 | croak("setruid() not implemented"); |
a0d0e21e |
1591 | } |
79072805 |
1592 | #endif |
1593 | #endif |
85e6fe83 |
1594 | #endif |
76e3520e |
1595 | uid = (I32)PerlProc_getuid(); |
4633a7c4 |
1596 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1597 | break; |
1598 | case '>': |
463ee0b2 |
1599 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1600 | if (delaymagic) { |
1601 | delaymagic |= DM_EUID; |
1602 | break; /* don't do magic till later */ |
1603 | } |
1604 | #ifdef HAS_SETEUID |
85e6fe83 |
1605 | (void)seteuid((Uid_t)euid); |
79072805 |
1606 | #else |
1607 | #ifdef HAS_SETREUID |
85e6fe83 |
1608 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1609 | #else |
1610 | #ifdef HAS_SETRESUID |
1611 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1612 | #else |
1613 | if (euid == uid) /* special case $> = $< */ |
76e3520e |
1614 | PerlProc_setuid(euid); |
a0d0e21e |
1615 | else { |
76e3520e |
1616 | euid = (I32)PerlProc_geteuid(); |
463ee0b2 |
1617 | croak("seteuid() not implemented"); |
a0d0e21e |
1618 | } |
79072805 |
1619 | #endif |
1620 | #endif |
85e6fe83 |
1621 | #endif |
76e3520e |
1622 | euid = (I32)PerlProc_geteuid(); |
4633a7c4 |
1623 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1624 | break; |
1625 | case '(': |
463ee0b2 |
1626 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1627 | if (delaymagic) { |
1628 | delaymagic |= DM_RGID; |
1629 | break; /* don't do magic till later */ |
1630 | } |
1631 | #ifdef HAS_SETRGID |
85e6fe83 |
1632 | (void)setrgid((Gid_t)gid); |
79072805 |
1633 | #else |
1634 | #ifdef HAS_SETREGID |
85e6fe83 |
1635 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1636 | #else |
1637 | #ifdef HAS_SETRESGID |
1638 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1639 | #else |
1640 | if (gid == egid) /* special case $( = $) */ |
76e3520e |
1641 | (void)PerlProc_setgid(gid); |
748a9306 |
1642 | else { |
76e3520e |
1643 | gid = (I32)PerlProc_getgid(); |
463ee0b2 |
1644 | croak("setrgid() not implemented"); |
748a9306 |
1645 | } |
79072805 |
1646 | #endif |
1647 | #endif |
85e6fe83 |
1648 | #endif |
76e3520e |
1649 | gid = (I32)PerlProc_getgid(); |
4633a7c4 |
1650 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1651 | break; |
1652 | case ')': |
5cd24f17 |
1653 | #ifdef HAS_SETGROUPS |
1654 | { |
1655 | char *p = SvPV(sv, na); |
1656 | Groups_t gary[NGROUPS]; |
1657 | |
1658 | SET_NUMERIC_STANDARD(); |
1659 | while (isSPACE(*p)) |
1660 | ++p; |
1661 | egid = I_V(atof(p)); |
1662 | for (i = 0; i < NGROUPS; ++i) { |
1663 | while (*p && !isSPACE(*p)) |
1664 | ++p; |
1665 | while (isSPACE(*p)) |
1666 | ++p; |
1667 | if (!*p) |
1668 | break; |
1669 | gary[i] = I_V(atof(p)); |
1670 | } |
8cc95fdb |
1671 | if (i) |
1672 | (void)setgroups(i, gary); |
5cd24f17 |
1673 | } |
1674 | #else /* HAS_SETGROUPS */ |
463ee0b2 |
1675 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1676 | #endif /* HAS_SETGROUPS */ |
79072805 |
1677 | if (delaymagic) { |
1678 | delaymagic |= DM_EGID; |
1679 | break; /* don't do magic till later */ |
1680 | } |
1681 | #ifdef HAS_SETEGID |
85e6fe83 |
1682 | (void)setegid((Gid_t)egid); |
79072805 |
1683 | #else |
1684 | #ifdef HAS_SETREGID |
85e6fe83 |
1685 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1686 | #else |
1687 | #ifdef HAS_SETRESGID |
1688 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1689 | #else |
1690 | if (egid == gid) /* special case $) = $( */ |
76e3520e |
1691 | (void)PerlProc_setgid(egid); |
748a9306 |
1692 | else { |
76e3520e |
1693 | egid = (I32)PerlProc_getegid(); |
463ee0b2 |
1694 | croak("setegid() not implemented"); |
748a9306 |
1695 | } |
79072805 |
1696 | #endif |
1697 | #endif |
85e6fe83 |
1698 | #endif |
76e3520e |
1699 | egid = (I32)PerlProc_getegid(); |
4633a7c4 |
1700 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1701 | break; |
1702 | case ':': |
a0d0e21e |
1703 | chopset = SvPV_force(sv,na); |
79072805 |
1704 | break; |
1705 | case '0': |
1706 | if (!origalen) { |
1707 | s = origargv[0]; |
1708 | s += strlen(s); |
1709 | /* See if all the arguments are contiguous in memory */ |
1710 | for (i = 1; i < origargc; i++) { |
fb73857a |
1711 | if (origargv[i] == s + 1 |
1712 | #ifdef OS2 |
1713 | || origargv[i] == s + 2 |
1714 | #endif |
1715 | ) |
79072805 |
1716 | s += strlen(++s); /* this one is ok too */ |
fb73857a |
1717 | else |
1718 | break; |
79072805 |
1719 | } |
bbce6d69 |
1720 | /* can grab env area too? */ |
fb73857a |
1721 | if (origenviron && (origenviron[0] == s + 1 |
1722 | #ifdef OS2 |
1723 | || (origenviron[0] == s + 9 && (s += 8)) |
1724 | #endif |
1725 | )) { |
66b1d557 |
1726 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
1727 | /* force copy of environment */ |
1728 | for (i = 0; origenviron[i]; i++) |
1729 | if (origenviron[i] == s + 1) |
1730 | s += strlen(++s); |
fb73857a |
1731 | else |
1732 | break; |
79072805 |
1733 | } |
1734 | origalen = s - origargv[0]; |
1735 | } |
a0d0e21e |
1736 | s = SvPV_force(sv,len); |
8990e307 |
1737 | i = len; |
79072805 |
1738 | if (i >= origalen) { |
1739 | i = origalen; |
fb73857a |
1740 | /* don't allow system to limit $0 seen by script */ |
1741 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
79072805 |
1742 | Copy(s, origargv[0], i, char); |
fb73857a |
1743 | s = origargv[0]+i; |
1744 | *s = '\0'; |
79072805 |
1745 | } |
1746 | else { |
1747 | Copy(s, origargv[0], i, char); |
1748 | s = origargv[0]+i; |
1749 | *s++ = '\0'; |
1750 | while (++i < origalen) |
8990e307 |
1751 | *s++ = ' '; |
1752 | s = origargv[0]+i; |
ed6116ce |
1753 | for (i = 1; i < origargc; i++) |
8990e307 |
1754 | origargv[i] = Nullch; |
79072805 |
1755 | } |
1756 | break; |
a863c7d1 |
1757 | #ifdef USE_THREADS |
1758 | case '@': |
38a03e6e |
1759 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
1760 | break; |
1761 | #endif /* USE_THREADS */ |
79072805 |
1762 | } |
1763 | return 0; |
1764 | } |
1765 | |
f93b4edd |
1766 | #ifdef USE_THREADS |
1767 | int |
8ac85365 |
1768 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd |
1769 | { |
1770 | dTHR; |
bc1f4c86 |
1771 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1772 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
1773 | if (MgOWNER(mg)) |
1774 | croak("panic: magic_mutexfree"); |
1775 | MUTEX_DESTROY(MgMUTEXP(mg)); |
1776 | COND_DESTROY(MgCONDP(mg)); |
e55aaa0e |
1777 | SvREFCNT_dec(sv); |
f93b4edd |
1778 | return 0; |
1779 | } |
1780 | #endif /* USE_THREADS */ |
1781 | |
79072805 |
1782 | I32 |
8ac85365 |
1783 | whichsig(char *sig) |
79072805 |
1784 | { |
1785 | register char **sigv; |
1786 | |
1787 | for (sigv = sig_name+1; *sigv; sigv++) |
1788 | if (strEQ(sig,*sigv)) |
8e07c86e |
1789 | return sig_num[sigv - sig_name]; |
79072805 |
1790 | #ifdef SIGCLD |
1791 | if (strEQ(sig,"CHLD")) |
1792 | return SIGCLD; |
1793 | #endif |
1794 | #ifdef SIGCHLD |
1795 | if (strEQ(sig,"CLD")) |
1796 | return SIGCHLD; |
1797 | #endif |
1798 | return 0; |
1799 | } |
1800 | |
84902520 |
1801 | static SV* sig_sv; |
1802 | |
76e3520e |
1803 | STATIC void |
8ac85365 |
1804 | unwind_handler_stack(void *p) |
84902520 |
1805 | { |
ff26ac79 |
1806 | dTHR; |
84902520 |
1807 | U32 flags = *(U32*)p; |
1808 | |
1809 | if (flags & 1) |
1810 | savestack_ix -= 5; /* Unprotect save in progress. */ |
1811 | /* cxstack_ix-- Not needed, die already unwound it. */ |
1812 | if (flags & 64) |
1813 | SvREFCNT_dec(sig_sv); |
1814 | } |
1815 | |
ecfc5424 |
1816 | Signal_t |
8ac85365 |
1817 | sighandler(int sig) |
79072805 |
1818 | { |
1819 | dSP; |
00d579c5 |
1820 | GV *gv = Nullgv; |
a0d0e21e |
1821 | HV *st; |
84902520 |
1822 | SV *sv, *tSv = Sv; |
00d579c5 |
1823 | CV *cv = Nullcv; |
79072805 |
1824 | AV *oldstack; |
84902520 |
1825 | OP *myop = op; |
1826 | U32 flags = 0; |
1827 | I32 o_save_i = savestack_ix, type; |
c09156bb |
1828 | PERL_CONTEXT *cx; |
84902520 |
1829 | XPV *tXpv = Xpv; |
1830 | |
1831 | if (savestack_ix + 15 <= savestack_max) |
1832 | flags |= 1; |
1833 | if (cxstack_ix < cxstack_max - 2) |
1834 | flags |= 2; |
1835 | if (markstack_ptr < markstack_max - 2) |
1836 | flags |= 4; |
1837 | if (retstack_ix < retstack_max - 2) |
1838 | flags |= 8; |
1839 | if (scopestack_ix < scopestack_max - 3) |
1840 | flags |= 16; |
1841 | |
1842 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ |
1843 | cxstack_ix++; /* Protect from overwrite. */ |
1844 | cx = &cxstack[cxstack_ix]; |
1845 | type = cx->cx_type; /* Can be during partial write. */ |
1846 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ |
1847 | } |
ff0cee69 |
1848 | if (!psig_ptr[sig]) |
1849 | die("Signal SIG%s received, but no signal handler set.\n", |
1850 | sig_name[sig]); |
1851 | |
84902520 |
1852 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1853 | infinity, so we fix 4 (in fact 5): */ |
1854 | if (flags & 1) { |
1855 | savestack_ix += 5; /* Protect save in progress. */ |
1856 | o_save_i = savestack_ix; |
565764a8 |
1857 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 |
1858 | } |
1859 | if (flags & 4) |
1860 | markstack_ptr++; /* Protect mark. */ |
1861 | if (flags & 8) { |
1862 | retstack_ix++; |
1863 | retstack[retstack_ix] = NULL; |
1864 | } |
1865 | if (flags & 16) |
1866 | scopestack_ix += 1; |
1867 | /* sv_2cv is too complicated, try a simpler variant first: */ |
1868 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) |
1869 | || SvTYPE(cv) != SVt_PVCV) |
1870 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
1871 | |
a0d0e21e |
1872 | if (!cv || !CvROOT(cv)) { |
79072805 |
1873 | if (dowarn) |
1874 | warn("SIG%s handler \"%s\" not defined.\n", |
00d579c5 |
1875 | sig_name[sig], (gv ? GvENAME(gv) |
1876 | : ((cv && CvGV(cv)) |
1877 | ? GvENAME(CvGV(cv)) |
1878 | : "__ANON__"))); |
1879 | goto cleanup; |
79072805 |
1880 | } |
1881 | |
88e89b8a |
1882 | oldstack = curstack; |
1883 | if (curstack != signalstack) |
93965878 |
1884 | AvFILLp(signalstack) = 0; |
88e89b8a |
1885 | SWITCHSTACK(curstack, signalstack); |
79072805 |
1886 | |
84902520 |
1887 | if(psig_name[sig]) { |
88e89b8a |
1888 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 |
1889 | flags |= 64; |
1890 | sig_sv = sv; |
1891 | } else { |
ff0cee69 |
1892 | sv = sv_newmortal(); |
1893 | sv_setpv(sv,sig_name[sig]); |
88e89b8a |
1894 | } |
a0d0e21e |
1895 | PUSHMARK(sp); |
79072805 |
1896 | PUSHs(sv); |
79072805 |
1897 | PUTBACK; |
a0d0e21e |
1898 | |
1899 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1900 | |
1901 | SWITCHSTACK(signalstack, oldstack); |
00d579c5 |
1902 | cleanup: |
84902520 |
1903 | if (flags & 1) |
1904 | savestack_ix -= 8; /* Unprotect save in progress. */ |
1905 | if (flags & 2) { |
1906 | cxstack[cxstack_ix].cx_type = type; |
1907 | cxstack_ix -= 1; |
1908 | } |
1909 | if (flags & 4) |
1910 | markstack_ptr--; |
1911 | if (flags & 8) |
1912 | retstack_ix--; |
1913 | if (flags & 16) |
1914 | scopestack_ix -= 1; |
1915 | if (flags & 64) |
1916 | SvREFCNT_dec(sv); |
1917 | op = myop; /* Apparently not needed... */ |
1918 | |
1919 | Sv = tSv; /* Restore global temporaries. */ |
1920 | Xpv = tXpv; |
79072805 |
1921 | return; |
1922 | } |
4e35701f |
1923 | |
1924 | |